TRAILER TYPE MOBILE TOILET

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to U.S. Provisional Patent Application No. 63/726,161 filed on Nov. 27, 2024. The entire disclosure of which is incorporated herein by reference in its entirety.

TECHNICAL FIELD

The present disclosure generally relates to portable toilets.

BACKGROUND

Portable sanitary units are used for temporary venues such as concerts, events, and construction sites. They are transported from one location to another location and may require some assembly. These sanitary units are rather basic. Typically, a sanitary unit may include a toilet bowl, a urinal, and a trash receptacle. Some sanitary units may further include a sink and fixtures for a hand sanitizer, tissues, napkins, toilet paper, etc. These sanitary units, commonly called portable toilets, are difficult to transport. Further, portable toilets may have odor because there is no flushing system and poorly lit.

BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS

To easily identify the discussion of any particular element or act, the most significant digit or digits in a reference number refer to the figure number in which that element is first introduced.

FIGS. 1A, 1B, 1C, 1D, 1E, 1F, and 1G are various views of a trailer-type mobile toilet according to an example embodiment.

FIGS. 2A, 2B, 2C, 2D, 2E, and 2F are views illustrating a trailer-type mobile toilet including a multi-stage wastewater filtration system, according to various example embodiments.

FIG. 3 is a view illustrating various components of a trailer-type mobile toilet 300, according to yet another example embodiment.

FIGS. 4A, 4B, and 4C illustrate various components and operations of a technical room, according to an example embodiment.

FIGS. 5A, 5B, and 5C are views illustrating an interior space of the trailer-type mobile toilet, according to various example embodiments.

FIG. 6 illustrates an electrical system configured to supply power to the portable restroom trailer, according to an example embodiment.

FIG. 7 illustrates a water-distribution and fixture-supply system configured for use in the portable restroom trailer, according to an example embodiment.

FIG. 8 illustrates a waste-collection and drainage system for the portable restroom trailer, showing the water-delivery connections to the toilet and wash fixtures and the routing of wastewater into separate filtration and clarification chambers of the septic tank. according to an example embodiment.

DETAILED DESCRIPTION

Overview

Briefly, a trailer type mobile sanitary unit or toilet is provided that is easily transportable and has an improved drainage system that is separated from a septic tank to reduce sewage, to prevent odor that may accumulate in the unit, for ease of use, and for sustainability.

More specifically, in one form, a trailer type mobile sanitary apparatus is provided. The trailer type mobile sanitary apparatus includes a housing that forms an interior space having a flushable toilet and a wash basin. The trailer type mobile sanitary apparatus further includes a wash basin drainage system and a septic tank that is separated from the wash basin drainage system and includes a decomposer configured to separate liquids from solids for a separate discharge.

In one form, the trailer type mobile sanitary apparatus has the housing securely positioned on a tray type trailer with the septic tank being formed in the tray type trailer. The tray type trailer including side walls that holds at least a bottom portion of the housing. The housing may be fastened inside the tray type trailer.

Example Embodiments

FIG. 1A is a front-view diagram illustrating a trailer-type mobile toilet 100, according to one example embodiment.

The trailer-type mobile toilet 100 includes a restroom housing 102 mounted securely on a trailer frame 104. The restroom housing 102 forms an enclosed interior sanitary space and is constructed from rigid steel framing and cladding materials configured to withstand outdoor use and transportation forces. The front of the restroom housing 102 includes an entry door 106 providing user access to the interior. The entry door 106 may include a lock, handle, and a reinforced panel structure to improve safety and durability.

A set of steps 108 is mounted to the trailer frame 104 to allow safe ingress and egress. The steps 108 may be foldable or retractable to reduce the overall footprint during transport. Optionally, the guard rails 110 are positioned adjacent to the steps to assist users and comply with safety requirements.

The restroom housing 102 may further include one or more ventilation openings 112 or ventilation louvers configured to promote airflow into and out of the interior sanitary space. In some example embodiments, an exhaust fan powered by an onboard electrical subsystem may be coupled to one or more of the ventilation openings to actively remove odors and improve air circulation. The ventilation arrangement may include exhaust fan placements supported by a 12-volt electrical system.

The trailer frame 104 includes wheels 114 and a towing coupling 116 for attachment to a towing vehicle. The trailer frame 104 may include a reinforced steel chassis designed to support the load of the housing, freshwater tank, septic tank, and technical room.

In certain example embodiments, ventilation fans, natural vents, and/or walls may be made up of thermal insulation materials. The restroom housing 102 may be integrated with the trailer frame 104. In one example embodiment, the restroom housing 102 may be securely but removably attached to the trailer frame 104.

The walls of the restroom housing 102 may be made of solid steel structure, and the entry door 106 and lock combination may be strong to reduce safety concerns especially for women and children. In certain example embodiments, there may be a trashcan configured to open and close inside the restroom housing 102 such that sanitary products used by women may be placed within the trashcan. Improved sanitary conditions and facilities reduce breeding of bacteria and viruses, and minimize risk of infectious diseases for users.

FIG. 1B is a rear-view diagram illustrating the trailer-type mobile toilet 100 according to an example embodiment.

The restroom housing 102 is portable and may be flexibly transported to various location. It is easy to carry and installed by securing the trailer-type mobile toilet 100 to the ground using a poll 120. The poll 120 may be removed to attach the restroom housing 102 to a mobile vehicle and/or the ground when stationary. The poll 120 is an example of a stabilizing pole or securement mechanism configured to engage the ground or a fixed support surface. The poll 120 permits the unit to remain stable when deployed at a stationary location, and may be retractable or removable to enable trailer mobility.

The restroom housing 102 is shown mounted within the boundaries of the trailer frame 104, which includes upstanding sidewalls or brackets that partially surround the lower portion of the housing to improve structural stability during transport.

A rear ventilation assembly 118 may be positioned on the back panel of the restroom housing 102. The rear ventilation assembly 118 can include passive louvers or an exhaust fan integrated into the ventilation subsystem. The rear portion of the trailer-type mobile toilet 100 may also include an access panel or service door 122 that allows maintenance personnel to reach internal components, such as electrical wiring, water conduits, or waste plumbing.

The rear of the trailer-type mobile toilet 100 also provides access to the waste-handling subsystem, including the septic tank positioned below the housing. The septic tank may include service points for draining liquid and solid waste, as described with reference to later figures. Electrical or lighting components may also be accessible from this rear vantage point.

In certain example embodiments, the rear of the trailer-type mobile toilet 100 may include a technical room that includes a water supply and an electric system, described in detail below.

FIG. 1C illustrates a top view of the trailer-type mobile toilet 100 showing the arrangement of the restroom housing 102 relative to the trailer frame 104 and roof-mounted components, according to one example embodiment.

The roof-mounted components may include a solar panel assembly 130. The solar panel assembly 130 is positioned on a roof 132 of the restroom housing 102 and is configured to capture solar energy for powering one or more electrical components of trailer-type mobile toilet 100. The solar panel assembly 130 may be mounted to a support frame integrated into the roof structure and electrically connected to an onboard charge controller, battery, and distribution panel.

In certain example embodiments, the roof 132 may also include ventilation openings, skylight panels, antenna mounts, or wiring conduits that interconnect with the technical room. The top-view illustrates that the restroom housing 102 occupies a major portion of the trailer footprint while leaving space for the technical room that includes a technical module (an electric system) and/or water-supply components that may be mounted adjacent to or beneath restroom housing 102.

In certain example embodiments that use a roof-mounted freshwater tank, the tank may be positioned beneath the solar panel or integrated into a flat support surface. In alternative embodiments, the freshwater tank may instead be mounted on a lateral support frame, lowering the center of gravity and improving transport stability.

In certain example embodiments, the roof layout demonstrates alignment of the solar panel with internal electrical components, including LED lighting, exhaust fans, and sensors configured to operate from the solar-powered electrical subsystem. The top view further provides a reference orientation for a conduit routing between the roof 132, an interior cabin 140, and the technical room.

FIG. 1D is a perspective view illustrating the trailer-type mobile toilet 100 with a technical room, according to an example embodiment. The trailer-type mobile toilet 100 may have the following dimensions 150: a height of 3300 mm, which is sufficient to accommodate a standing adult user, a length of 1680 mm and width of 3400 mm, which are sufficient to encompass standard toilet components. This, however, is just a non-limiting example of the dimensions 150. The trailer-type mobile toilet 100 includes a technical room 160 having an electric system 162 and a water supply system 164.

The restroom housing 102 contains the user-facing sanitary fixtures including a toilet, wash basin, lighting, ventilation fan, speaker, and optional air-conditioning module. Adjacent to the restroom housing 102, the technical room 160 houses the booster pump, water heater, electrical circuit breakers, battery, charge controller, and other components of the electric system 162 and the water supply system 164. The water supply system 164 may include a freshwater tank positioned either inside the technical room 160 or integrated into a dedicated mounting space on the trailer frame 104. Water flows from the freshwater tank through PPR or PVC piping routed into the cabin of the restroom housing 102 to supply the wash basin and toilet fixtures.

The septic system 170 includes a waste tank positioned beneath the cabin floor or integrated into the trailer structure. The septic system 170 includes separate waste compartments and drainage lines routed through the base structure of the trailer.

The electric system 162 interfaces with solar panel inputs, an onboard battery, converter modules, and external AC power, distributing energy to powered components within both the cabin and technical room 160.

This arrangement of components in the trailer-type mobile toilet 100 demonstrate how the major systems of the portable restroom trailer are arranged to maximize space efficiency, structural balance, and serviceability while maintaining a compact and transportable form factor.

FIG. 1E is a rear view illustrating the trailer-type mobile toilet 100 with the technical room 150, according to an example embodiment.

FIG. 1F is another perspective view illustrating the trailer-type mobile toilet 100 enclosed completely with a housing for transportation, according to an example embodiment. The trailer-type mobile toilet 100 has a housing 180 in which the technical room 160 and the cabin are provided.

FIG. 1G is another perspective view illustrating the interior cabin 140 of the trailer-type mobile toilet 100, according to an example embodiment.

FIGS. 2A-2C are views illustrating a trailer-type mobile toilet 200, according to another example embodiment.

In one example embodiment, the toilet housing is removable attached to the trailer using the fastener that is configured to open and close. The housing includes a water tank on top of the housing roof. In this embodiment, the trailer includes side walls that surround the housing. The interior space or facilities formed by the housing may include vacuum flush toilet, men's urinal, wash basin, and a wash basin drainage system separated from a septic tank to reduce sewage storage. Sporting a lighting system that utilizes off solar energy. By having a vacuum flush toiler and wash basin with water creates a more comfortable experience for a user. For example, the men's urinal and automatic decomposition function effectively reduces odor and bacterial growth and improve hygiene.

In one example embodiment, the apparatus is equipped with a 100-gallon freshwater barrel and a 125-gallon septic tank. The septic tank includes an automatic decomposition function, which can automatically separate liquids from solids and discharge them separately, thereby reducing pollution to nature. For example, the septic tank is provided below the flooring of the housing. The freshwater barrel may be positioned on a roof of the housing with a flat panel on top to place the solar panels.

Pollution-Reducing and Energy-Efficient: The solar lighting system and septic tank with automatic decomposition function minimize energy consumption and pollution to the environment.

This trailer mobile toilet not only meets the basic needs of life, but also considers the requirements of environmental protection, comfort, and health, providing users with a more complete sanitary facility experience.

Reduced bacterial contamination in the air, improved ventilation conditions, and air circulation in mobile toilets that provide sufficient sanitary products and facilities, increasing feminine hygiene and health.

To protect the health and safety of women and children, the trailer mobile toilet strives to improve the facilities and management of mobile toilets while ensuring that appropriate sanitary conditions and safety precautions are implemented.

Specifically, FIG. 2A is a perspective view illustrating a trailer-type mobile sanitary apparatus 200 including a removable toilet housing 202 mounted on a trailer frame 204. The housing 202 may be detachably secured to the trailer using one or more fastener systems described with reference to FIG. 2B, allowing the cabin to be lifted, replaced, or serviced independently of the trailer frame.

A freshwater tank 206 is positioned on a roof 208 of the removable toilet housing 202. The freshwater tank 206 may be a high-capacity tank, such as a 100-gallon reservoir, configured to supply water to interior fixtures including a flushable toilet and wash basin. A structural support panel 210 is mounted beneath the freshwater tank 206 to distribute the load across the steel roof structure and maintain stability during transport.

The roof 208 may be formed of reinforced aluminum composite cladding supported by a galvanized steel frame, consistent with the cabin construction. Piping extends from the freshwater tank 206 through the roof 208 and into the interior plumbing system, where the water is directed to a booster pump and water-supply lines routed to the interior fixtures.

The exterior of the removable toilet housing 202 may include ventilation louvers, exterior trim panels, insulation layers, and other structural features designed to withstand outdoor use and vibration during towing.

FIG. 2B illustrates a fastener mechanism 220 configured to secure the removable toilet housing 202 to the trailer frame 204. The fastener mechanism 220 may include a latch, a clamp, or a bolt-based assembly that engages receiving brackets 222 welded to the trailer frame.

The trailer frame 204 may include raised sidewalls or guide channels 224 that partially surround the lower edges of the removable toilet housing 202. These guide channels 224 help limit lateral movement and reduce vibration while the trailer is in motion. The fastener mechanism 220 interfaces with the guide channels 224 to lock the removable toilet housing 202 securely in place. The fastener mechanism 220 may further include shock-absorbing pads or bushings 226 to reduce transfer of vibration from the trailer frame to the housing during transport.

Electrical and plumbing couplings between the removable toilet housing 202 and technical components on the trailer may be implemented as quick-disconnect connectors to facilitate removal of the housing without extensive system disassembly.

FIGS. 2C, 2D, and 2E illustrate a septic tank 230 integrated into a tray-type base 232 of the trailer frame 204, according to an example embodiment. The tray-type base 232 may be considered a trailer floor that includes a recessed cavity configured to receive and support the septic tank 230, thereby lowering the center of gravity of the trailer-type mobile toilet 200 and protecting the waste-handling subsystem during transportation.

The septic tank 230 may be formed from welded steel or molded polymer and includes an internal decomposer plate 234 (sheet plate) having a plurality of punched holes configured to separate liquid waste from solid waste. Solid waste accumulates in an upper compartment 238 located above the internal decomposer plate 234, while liquid waste passes through the punched holes into a lower compartment 236.

In certain example embodiments, the septic tank 230 has internal structural ribs and reinforcement features to improve rigidity and distribute weight evenly across the trailer frame 104.

The septic tank 230 further includes a liquid-waste drain outlet 240 and a solid-waste drain outlet 242. The liquid-waste drain outlet 240 is configured to discharge liquid waste from the lower compartment 236, while the solid-waste drain outlet 242 discharges solid waste from the upper compartment 238. These separate drainage paths facilitate simplified maintenance and environmentally responsible waste handling.

The integration of the septic tank 230 within the tray-type trailer floor 232 enhances structural rigidity, stabilizes weight distribution, and enables the trailer frame 204 to withstand dynamic loading during towing. In certain example embodiments, the tray-type support structure may be provided and is configured to be integrated directly into the trailer frame, providing a low-profile mounting position for the septic tank and lowering the overall center of gravity of the portable restroom trailer. This arrangement improves stability during towing and reduces lateral shifting of the waste tank. In addition, the recessed configuration of the tray protects the septic tank from impact, road debris, and environmental exposure. A combination of the reinforced sheet, the reinforcement grid, and steel plate may form a rigid containment zone that supports the septic tank and mechanically couples it to the trailer chassis. The design ensures that the waste tank remains secure even when subjected to vibration, acceleration, braking forces, or uneven terrain encountered during transport.

Turning now to FIGS. 2D and 2E, FIGS. 2D are 2E are operational views of a multi-stage wastewater filtration system 260 configured for use in the portable restroom trailer, according to an example embodiment. The multi-stage wastewater filtration system 260 includes several filtration compartments arranged to progressively separate solid waste, sludge, and fine particulate matter from incoming wastewater.

Incoming wastewater enters the system through an inlet 262 having a diameter of approximately 75 mm. The inlet 262 directs the flow into a first-stage solid-filtration compartment 264. The first-stage solid-filtration compartment 264 is sized to retain large debris and particulate matter, preventing blockage or overload of downstream compartments.

Adjacent to the first-stage solid-filtration compartment 264 is a sludge-filtration compartment 266. The sludge-filtration compartment 266 enables gravitational settling of heavier organic material and semi-solid sludge, further reducing suspended solids and preparing the wastewater for fine-filtration processing.

A fine-filtration compartment 268 extends across the lower portion of the system and receives wastewater from the solid- and sludge-filtration stages. The fine-filtration compartment 268 may incorporate perforated panels, mesh screens, or baffle elements to capture fine particulates and produce a more clarified effluent prior to storage or further treatment.

An outlet port 270, having a diameter of approximately 45 mm, is positioned adjacent the upper region of the filtration system and allows controlled discharge of filtered liquid. Flow through outlet port 270 may be selectively regulated using a valve assembly 272, 274, and 276 positioned along the inlet manifold to isolate individual filtration stages as needed.

The multi-stage wastewater filtration system 260 includes a three-stage filtration structure in which solid matter, sludge material, and fine particulates are sequentially removed from wastewater before the liquid fraction proceeds to a final collection or treatment stage.

FIG. 2E illustrates an alternate configuration of multi-stage wastewater filtration system 260, according to another example embodiment. In this embodiment, the filtration compartments are arranged to facilitate direct access to an auxiliary discharge line while maintaining staged separation of solid waste, sludge, and fine particulates.

Wastewater enters the multi-stage wastewater filtration system 260 through an upper inlet 282 similar in function to inlet 262 of FIG. 2D. The wastewater is first directed into first-stage solid-filtration compartment 264. The first-stage solid-filtration compartment 264 retains larger solids, preventing them from entering downstream filtration zones. Adjacent to the first-stage solid-filtration compartment 264 is the sludge-filtration compartment 266. The sludge-filtration compartment 266 is configured to allow gravitational settling of heavy organic matter and semi-solid sludge. Settled material may later be removed or evacuated through an auxiliary outlet. The fine-filtration compartment 268 is positioned below the solid- and sludge-filtration compartments and spans the width of the filtration system. The fine-filtration compartment 268 may include fine-mesh screens, perforated steel sheets, or layered baffles designed to trap small particulates and clarify the liquid waste stream.

An auxiliary outlet port 284, having a diameter of approximately 60 mm, is positioned adjacent to the sludge-filtration compartment 286. The auxiliary outlet port 284 may be used to selectively drain sludge, perform maintenance, flush the compartment, or remove intermediate-stage filtered liquid. The auxiliary outlet port 284 is accessible without disturbing the fine-filtration compartment 268.

This arrangement allows individual filtration compartments to be accessed and serviced independently. This modular arrangement improves maintenance efficiency, enhances separation performance, and allows customization of the wastewater-handling system depending on usage conditions.

FIG. 2F illustrates the multi-stage wastewater filtration system 260 interior including dimensions, according to an example embodiment.

FIG. 3 is a view illustrating various components of a trailer-type mobile toilet 300, according to yet another example embodiment. The trailer-type mobile toilet 300 includes the components provided in the table below.

ITEM NO.	PART NUMBER	DESCRIPTION	QTY.
1	TOILET TRAILER-01	BASE FRAME WELDMENT	1
2	TOILET TRAILER-02	BOTTOM TANK	1
3	TOILET TRAILER-03	UPPER TANK SUPPORT FRAME	1
4	TOILET TRAILER-04	UPPER WATER TANK	1
5	TOILET TRAILER-05	TRAILER AXIS ASSEMBLY	1
6	TOILET TRAILER-06	TRAILER FRONT JACK	1
7	TOILET TRAILER-07	TOILET	1
8	TOILET TRAILER-08	LEAF SPRING SUPPORT #3	4
9	TOILET TRAILER-09	LEAF SPRING PLAIN BEARING	4
10	TOILET TRAILER-10	LEAF SPRING SHACKLE SPRING PIN	6
11	TOILET TRAILER-11	GREASE NIPPLE	6
12	TOILET TRAILER-12	WHEEL COVER	2
13	TOILET TRAILER-14	TRAILER COUPLER	1
14	TOILET TRAILER-15	DRAN GATE VALVE	2
15	M10 × 30.8.8.Zn	M10 × 30.8.8.Zn	10
16	M10 × 80.8.8.Zn	M10 × 80.8.8.Zn	4
17	M10 × 120.8.8.Zn	M10 × 120.8.8.Zn	5
18	M12 × 90.8.8.Zn	M12 × 90.8.8.Zn	4
19	M10 − Zn	M10 − Zn	9
20	M12 − Zn	M12 − Zn	4
21	M16 − Zn	M16 − Zn	6
22	M10.Zn	M10.Zn	29
23	M12.Zn	M12.Zn	8
24	M16.Zn	M16.Zn	6

The trailer-type mobile toilet 300 has a technical room 310 mounted on a rear portion of the trailer frame 104 with a restroom housing 320 secured to the rear portion of the trailer frame 104. The a technical room 310 is configured to contain a water-supply system 312 and electrical subsystems 314 that support operations of the restroom housing 320.

The trailer frame 104 includes structural steel members such as longitudinal chassis rails and cross-members. A towing assembly is positioned at the front of the trailer frame 104 and includes a coupler and a jack stand for stabilizing the trailer when disconnected from a tow vehicle.

The a technical room 310 is formed by structural wall panels mounted to a steel subframe. A front service door 316 provides access to internal components including but not limited to a booster pump, electrical cabinet, circuit breakers, charge controller, and battery. The front service door 316 is secured by hinges and a locking latch to maintain enclosure integrity during transport.

Mounted above the electrical subsystems 314 is the water-supply system 312. The water-supply system 312 includes a freshwater tank supported by a tank cradle. In certain example embodiments, the freshwater tank may correspond to the roof-mounted or side-mounted water tank. The tank includes a fill port 318 and may incorporate a float valve and inlet control system within the a technical room 310. Water lines extend from the tank into the a technical room 310, where the pump system pressurizes water for delivery to the restroom housing 320.

The restroom housing 320 is removably or permanently mounted to the trailer frame and includes the structural walls, door, ventilation components, internal fixtures, and sanitary hardware described in the provisional application. The restroom housing 320 may be secured using fastening components including securement brackets and anti-vibration fasteners.

The a technical room 310 forms the centralized utility compartment of the trailer-type mobile toilet 300. The a technical room 310 houses the water-supply equipment, including but not limited to the booster pump and water connections from the freshwater tank and the electrical subsystem that powers the lighting, ventilation, and water systems, and the service interfaces required for maintenance. The placement of the a technical room 310 at the rear portion of the trailer frame 104 balances the load distribution relative to the restroom housing 320 and the septic tank, thereby enhancing trailer stability during towing.

FIGS. 4A, 4B, and 4C illustrate various components and operations of a technical room 400, according to an example embodiment. The technical room 400 is an example of the technical room 310 of FIG. 3.

Turning now to FIG. 4A, FIG. 4A illustrates the technical room 400 which includes a water-supply assembly 410 and an electrical cabinet 420 of a portable restroom trailer, according to an example embodiment. The technical room 400 is a dedicated service compartment positioned on the trailer frame and is configured to house two integrated subsystems the water-supply assembly 410 and the electrical cabinet 420.

The water-supply assembly 410 includes a freshwater tank 412 mounted on an upper support platform 414 secured to the top of the technical room 400. The freshwater tank 412 may be a cylindrical reservoir sized to store water for flushing, washing, and other sanitary operations. A float valve 416 is positioned within the freshwater tank 412 to regulate water level automatically by controlling incoming flow. A fill opening 418 provides access for manual filling or inspection of the interior of the freshwater tank 412.

Water enters the freshwater tank 412 through a head connection 430 located at a water-intake position 432. The head connection 430 may include an external-tooth connector sized at approximately 20 mm for attachment to an incoming supply hose.

Beneath the freshwater tank 412, the electrical cabinet 420 is enclosed within an electrical cabinet mounted inside the technical room 400. The electrical cabinet 420 contains the power-distribution components including but not limited to circuit breakers, a charge controller, converters, switching hardware, and wiring interfaces for powering the pump, water heater, lighting, and ventilation equipment.

A water-inlet line 434 extends from the water-supply assembly 410 into the technical room 400, where it interfaces with valves, fittings, and a booster pump system before supplying the restroom cabin. The technical room 400 consolidates both the water-supply assembly 410 and the electrical cabinet 420 into a common, serviceable enclosure.

With continued reference to FIG. 4A, FIG. 4B provides an isometric view emphasizing the integration of the water-supply assembly 410 and the electrical cabinet 420 within the technical room 400, according to an example embodiment. The freshwater tank 412 is supported by the upper support platform 414, which is secured to a surrounding steel frame 440 forming the external structure of the technical room.

Inside the technical room 400, the electrical cabinet 420 is suspended on internal mounting brackets and houses an electrical system, including but not limited to charge-control electronics, distribution circuits, and power-management components. The electrical cabinet 420 supplies controlled electrical power to the water pump, heater, cabin lighting, ventilation fans, and optional accessories such as sensors or communication modules.

Water-supply piping 442 is routed from the freshwater tank 412 downward into the technical room 400. The Water-supply piping 442 may include tees, elbows, reducers, unions, and a booster pump (not shown) housed within the technical room 400 as part of the water-supply assembly 410. A dedicated heater line 444 extends from the manifold toward a water-heater interface located within the water-supply assembly 410, where heated water may be supplied to designated fixtures.

The technical room's steel frame supports the load of the freshwater tank 412 and protects the water-supply assembly 410 and the electrical cabinet 420 from environmental exposure. An open lower frame region provides service access for drainage, wiring, pump installation, and routing of cabin inlet lines.

With continued reference to FIGS. 4A and 4B, FIG. 4C illustrates a valve-control configuration 450 located within the technical room 400 and forming part of the water-supply assembly 410, according to an example embodiment. The valve-control configuration 450 allows selective routing of water for sediment draining, tank filling, cold-water use, hot-water operation, or direct line supply.

The valve-control configuration 450 includes valve 1 (452), valve 2 (454), valve 3 (456), and a heater valve 458 positioned at the bottom of the water-heater connection. These valves regulate the operation of the water-supply assembly 410 while electrical power for pump operation, heater control, and valve actuation is supplied by the electrical cabinet 420.

Operational modes of the valve-control configuration 450 include:

• • 1. Drain sediment: Valve 1 (452), valve 2 (454), and valve 3 (456) are unlocked while heater valve 458 remains locked, enabling flushing of accumulated sediment through lower drain lines.
  • 2. Fill water: All primary valves 452, 454, and 456 are locked to direct incoming water into the freshwater tank 412 via head connection 460. The heater valve 458 remains locked.
  • 3. Cold-water supply (use without heater): Valve 1 (452) and valve 3 (456) are unlocked, valve 2 (454) is locked, and heater valve 458 remains locked. Water bypasses the heating circuit.
  • 4. Hot-water supply (heater mode): Valve 1 (452) is unlocked, valves 2 (454) and 3 (456) are locked, and heater valve 458 is unlocked to route water through a heater line 462.
  • 5. Direct-line external water supply: Valve 2 (454) is unlocked while valves 1 (452), 3 (456), and heater valve 458 remain locked, permitting external pressurized water to feed the system directly.

The valve-control configuration 450 is therefore an integral part of the water-supply assembly 410 and operates in coordination with the electrical cabinet 420 contained in the technical room 400. Further, by positioning the freshwater tank 412 of FIGS. 4A, 4B, and 4C on a side instead of on top of the toilet cabin may be particularly advantageous. It reduces the height of the toilet. That is, higher toilets are more susceptible to falling over during transport and to environmental factors such as wind. In this example embodiment, the toilet is shorter and more compact.

FIGS. 5A, 5B, and 5C are views illustrating an interior space 500 of the trailer-type mobile toilet 100, according to various example embodiments.

FIG. 5A illustrates a front elevation view of the interior space 500, which is a restroom cabin interior 500 configured for installation on the portable restroom trailer.

The interior space 500 is enclosed by structural wall panels 502 and defines a vertical interior height of approximately 2000 mm. A toilet fixture 504 is positioned along the central axis of the cabin and includes a flushing mechanism 505 connected to the water-supply assembly located within the technical room 400 of FIGS. 4A, 4B, and 4C.

Adjacent to the toilet fixture 504 is a wash basin 506 mounted to the sidewall of the cabin. Water lines and drainage plumbing for the wash basin 506 extend downward through a cabin floor 508 and interface with the water-supply and drainage systems. The cabin floor 508 may be formed from a composite or laminated material to provide a waterproof, slip-resistant interior surface.

A ventilation opening 510 is positioned on the upper portion of the rear wall panel to support airflow exchange within the cabin. The placement of the toilet fixture 504, wash basin 506, and ventilation opening 510 is optimized to maximize usable space while allowing sufficient clearance for user movement in the compact cabin environment. In certain example embodiments, a urinal 511 may be included.

With continued reference to FIG. 5A, FIG. 5B provides a perspective view of interior space 500, showing the spatial arrangement of the sanitary fixtures and interior features, according to an example embodiment. The cabin may be constructed with internal dimensions of approximately 1115 mm in width and 1015 mm in depth. The toilet fixture 504 is positioned against the back wall, while the wash basin 506 is mounted to the adjacent sidewall.

A ceiling-mounted exhaust fan 520 is installed near the rear of the cabin and is connected to the electrical system housed within the technical room 400. The ceiling-mounted exhaust fan 520 operates to remove odors and moisture from the cabin. A ceiling panel 522 forms the upper boundary of the interior and supports additional components, including optional lighting and wiring conduits.

A wall-mounted mirror 524 may be positioned above the wash basin 506. The cabin interior may also incorporate accessory components such as a tissue holder, soap dispenser, or baby-changing station depending on the selected configuration. The ergonomic positioning of sanitary fixtures within the limited footprint of the interior space 500 are provided by way of an example only and not by way of a limitation.

With continued reference to FIGS. 5A and 5B, FIG. 5C illustrates a further perspective view of the interior space 500, highlighting an interior lighting system 530 and a ventilation arrangement, according to an example embodiment.

The interior lighting system 530 includes one or more LED light units mounted on the ceiling panel 522. These light units may be motion-activated through a sensor located within the cabin and are powered by the electrical cabinet contained within the technical room.

An exhaust-air channel or ventilation path 532 directs airflow from the exhaust fan 520 through a vent opening to the exterior of the cabin. Structural corner supports 534 reinforce the cabin walls and ceiling, providing rigidity and securing the cladding panels in place.

The interior lighting system 530 and the ventilation system work together to maintain a hygienic and well-lit environment for users. The interior space 500 is designed to integrate compact sanitary fixtures, interior lighting, and ventilation components within a rigid structural enclosure that interfaces with the portable restroom trailer's water-supply and electrical systems.

FIG. 6 illustrates an electrical system 600 configured to supply power to the portable restroom trailer, according to an example embodiment. The electrical system 600 integrates multiple power sources and distributes electrical power to various cabin components, including lighting, ventilation, pumping, heating, and climate-control devices.

The system includes at least one solar panel 602 configured to generate DC electrical power during daylight operation. Power from the solar panel 602 is routed to a battery 604, which serves as the primary energy storage unit for the system. The battery 604 supplies regulated DC power to components within the restroom cabin and the technical room.

Power may also be supplied from external AC sources, such as a utility power pole 606 or a portable generator 608. These AC power inputs may be connected through an electrical cabinet (not shown in this figure but identified in prior figures as part of the technical room) that contains the charge controller, converters, and switching hardware.

A motion sensor 610 is positioned in the cabin to automatically activate selected lighting and ventilation elements when occupancy is detected. The motion sensor 610 is electrically connected to one or more light fixtures, including an LED ceiling light 612 rated at approximately 12 V and 9 W. Additional ventilation is provided by an exhaust fan 614 rated at approximately 12 V and 5 W. Both the LED ceiling light 612 and exhaust fan 614 operate on low-voltage DC power supplied by battery 604.

A mirror-mounted LED assembly 616 rated at approximately 12 V and 8 W provides illumination for grooming or hygiene tasks within the cabin. The system further includes a booster pump 618 operable at approximately 24 V and 100 W, which pressurizes water delivered from the freshwater tank to the cabin fixtures.

A speaker 620 rated at approximately 5 V and 5 W may be connected to provide audio alerts, announcements, or user entertainment. A water heater 622 rated at approximately 110 V and 2300 W is connected to the AC distribution line of the electrical system 600 to provide heated water to the wash basin or shower components, where equipped.

An air-conditioning unit 624 rated at approximately 72 V and 1000 W is also integrated into the electrical system 600. The air-conditioning unit 624 provides temperature control and may be powered by a dedicated converter or transformer contained within the electrical cabinet.

The electrical system 600 is configured to automatically manage power distribution from multiple sources and deliver regulated electrical power to a variety of restroom-related devices. By integrating solar power generation, energy storage, and optional external AC input, the electrical system 600 ensures reliable operation of all powered components regardless of installation location or availability of grid power.

FIG. 7 illustrates a water-distribution and fixture-supply system 700 configured for use in the portable restroom trailer, according to an example embodiment.

The system 700 delivers pressurized water from a freshwater source to multiple sanitary fixtures within the restroom cabin and directs corresponding wastewater to appropriate drainage and filtration chambers associated with the septic system.

A freshwater tank 702 supplies water to a booster pump 704, which is operable to pressurize the water-supply lines for distribution throughout the cabin. Water from the booster pump 704 flows through a primary PPR distribution line 706, which may be formed of 20 mm PPR piping. The PPR distribution line 706 branches into multiple fixture-supply lines configured to serve the toilet, urinal, wash basin, and optional bidet spray.

A water heater 708 may be connected in-line with the distribution system, enabling heated water to be delivered to selected fixtures such as the lavado 720. The water heater 708 may be electrically powered by the electrical system located in the technical room.

A dedicated branch of the distribution line 706 supplies a toilet fixture 710 positioned within the cabin. Water supplied to toilet 710 is used for flushing and is directed to a settling chamber positioned within the septic system.

Another branch of the primary distribution line serves a urinal fixture 712. Wastewater from urinal 712 flows downward through a PVC drain line 714 having a diameter of approximately 27 mm. The urinal drain line 714 directs wastewater into a filtration chamber associated with the septic tank, where coarse solids are removed.

The system 700 may further include a bidet spray 716 connected to the PPR distribution line 706. The bidet spray 716 provides auxiliary cleaning water and discharges wastewater into the same drainage system serving the toilet 710.

A lavado or wash basin 720 is supplied through a dedicated branch of the distribution line 706 and receives both hot and cold water depending on the configuration of water heater 708. Wastewater from the lavado 720 is routed through a PVC drain line 722 having a diameter of approximately 34 mm. The wastewater flows into a clarification chamber positioned within the septic tank assembly, where fine solids are separated from liquid effluent.

A flooring surface 724, which may be formed of quartz- or composite-based panels, is positioned beneath the wash basin area to provide a water-resistant surface that channels incidental splash or runoff toward the drainage openings of the cabin.

As such, the water-distribution and fixture-supply system 700 provides an integrated sanitary network within the portable restroom trailer, combining pressurized water delivery, hot-water capability, and coordinated routing of wastewater into separate filtration, settling, and clarification chambers of the septic system.

FIG. 8 illustrates a waste-collection and drainage system 800 for the portable restroom trailer, showing the water-delivery connections to the toilet and wash fixtures and the routing of wastewater into separate filtration and clarification chambers of the septic tank, according to an example embodiment.

A toilet fixture 802 is positioned above a settling chamber 804 that forms part of the multi-stage wastewater-treatment system. When the toilet 802 is flushed, water supplied via the pressurized water-delivery system flows into the toilet bowl and carries waste downward into the settling chamber 804. This chamber allows heavier solids to accumulate, reducing the amount of suspended particulate entering downstream stages.

Adjacent to the toilet 802 are a urinal fixture 806 and a lavado basin 808. Both fixtures discharge wastewater through dedicated PVC drain outlets. The urinal 806 is connected to a 34 mm PVC drain line 810, while the lavado 808 is connected to a separate 34 mm PVC drain line 812. These drain lines merge into downstream piping leading toward the clarification region of the septic tank.

A floor drain 814 is positioned near the base of the toilet area and is connected to a 60 mm PVC drain line 816. The floor drain 814 ensures that incidental water, cleaning fluids, or overflow within the cabin is routed safely into the waste-management system without accumulating on the cabin floor.

A network of vertical and horizontal drainage pipes 820 and 822 is located along the exterior and interior of the cabin frame. These pipes form a manifold assembly that receives wastewater from the urinal 806, lavado 808, toilet 802, and floor drain 814. The manifold directs flow toward an inlet 824 positioned at a height of approximately 600 mm for waste output of 60 mm diameter, and a secondary output 826 at approximately 450 mm for a 42 mm outlet size.

Upstream of the cabin, the manifold assembly includes a series of connectors, tees, and elbows 830 formed from 49 mm and 75 mm PVC sections, as indicated in the engineering diagram. These components route wastewater through the filtration chamber 832, where coarse particulate matter is captured. From there, the liquid fraction flows into a clarification chamber 834, which is configured to remove finer solids and produce a clearer effluent.

The urinal 806 and lavado 808 primarily discharge into the clarification pathway due to the lower solids content of their wastewater, while the toilet 802 outputs into the settling chamber 804 to allow solid waste to collect separately. Liquid overflow from the settling chamber 804 may also enter the clarification chamber 834 through an internal passageway.

As such, the waste-collection and drainage system 800 provides segregated routing of toilet wastewater, urinal wastewater, lavado wastewater, and floor drainage, enabling staged treatment through settling, filtration, and clarification chambers before the waste reaches the final decomposition or discharge stage of the septic tank.

In one example embodiment, the waste is provided to a decomposer that includes a metal sheet having a plurality of punch holes for draining fluids. The decomposer separates fluid waste from solid waste such that fluid waste drains to the bottom of the decomposer via punch holes, whereas the solid waste remains above the metal sheet or plate with the plurality of punch holes.

As explained above, the septic tank includes two compartments. A first compartment configured to hold liquid and solid waste together and a second compartment that has fluid waste only. That is, the waste is deposited from the toilet and the sink inside the housing into the first compartment. Once the first compartment is filled to a predetermined point, the liquid waste leaks in through the holes in the middle to the second compartment such that the second compartment only stores the liquid waste. The decomposer that has the drain holes and separation holes, according to one example embodiment.

In one example embodiment, the toilet housing includes solar panels on the roof. However, the water tank is placed on a side thereof. Specifically, the water tank may be placed on a support housing. The support housing may include a pump configured to pump water into the sink faucet and/or to flush the toilet inside the toilet housing. To improve the pressure of pumping the water into the faucet or toilet bowl, a pump may be provided inside the support housing 3. The pump helps pump water from the water tank to the components inside the toilet housing. Optionally, the support housing 3 may further include a storage for toiletries i.e., toilet supplies such as paper towels, toilet paper, soap, etc.

According to one or more example embodiments, a method of installation is provided.

The method involves assembling or positioning a portable toilet on a trailer, which may be a tray type trailer and securing the portable toilet in place. The trailer is configured with side walls that hold or surround the bottom portion of the portable toilet therein. Additionally, a water tank with a supporting frame is installed on the trailer next to or adjacent to the toilet housing. The housing extends above the water tank in the vertical direction.

In yet another example embodiment, a system is provided that includes the apparatuses and operations explained above with reference to FIGS. 1A-8.

One or more example embodiments may provide a number of improvements over conventional portable toilet units and mobile restroom trailers. These improvements arise from the integrated arrangement of the technical room, water-supply system, electrical system, and multi-chamber waste-management system described herein.

First, at least one example embodiment incorporates a dedicated technical room that houses both a water-supply assembly and an electrical system, which are typically absent or externally mounted in prior portable sanitation units. By locating the freshwater tank, booster pump, heater interface, valve-control assembly, electrical cabinet, circuit-protection devices, charge controller, converters, and battery within a protected compartment, the example embodiment improves serviceability, environmental protection, and operational reliability of the utility systems.

Second, at least one example embodiment provides a pressurized clean-water delivery system capable of supplying water to the toilet, wash basin, urinal, bidet spray, and other fixtures. The use of a booster pump and structured plumbing network enhances fixture performance and enables running water functionality not generally available in passive or chemical-type portable toilets.

Third, the waste-management system includes multiple chambers-such as settling, filtration, and clarification chambers—that cooperate to separate solid waste, sludge, and finer particulates. This staged separation reduces clogging, improves odor control, and increases the operational lifespan of the septic tank. The system enables more efficient waste handling compared to single-stage chemical or holding-tank systems traditionally used in portable restrooms.

Fourth, the septic tank is mounted within a reinforced tray integrated into the trailer chassis, providing enhanced structural support, improved weight distribution, and a lower center of gravity. This configuration increases stability during towing and protects the septic tank from deformation or impact.

Fifth, the valve-control assembly within the water-supply system allows multiple operating configurations, including tank filling, cold-water use, heated-water use, sediment draining, and direct external water supply. This flexibility accommodates varying deployment conditions and simplifies field operation.

Sixth, the electrical system supports hybrid power operation, including solar power, stored battery power, external AC input, and generator input. This enables continuous operation in remote or temporary locations where utility power may be limited or unavailable. The electrical system supplies power to the lighting, ventilation fan, water pump, heater, air-conditioning unit, and optional accessories.

Seventh, the cabin interior integrates powered ventilation, LED lighting, motion-activated controls, and proper placement of sanitary fixtures. These design features improve user comfort, odor management, and hygienic conditions compared to conventional portable restroom units that lack powered airflow control and running water.

Finally, the modularity of the technical room, cabin structure, and septic-tank assembly allows efficient maintenance, cleaning, component replacement, and system upgrades. Service access to the utilities is improved by separating the technical room from the user compartment, reducing downtime and simplifying upkeep.

Collectively, these improvements result in a mobile sanitation apparatus that provides enhanced water management, electrical reliability, waste treatment, user hygiene, safety, and structural durability relative to prior portable restroom designs.

Note that in this Specification, references to various features (e.g., elements, structures, nodes, modules, components, engines, logic, steps, operations, functions, characteristics, etc.) included in ‘one embodiment’, ‘example embodiment’, ‘an embodiment’, ‘another embodiment’, ‘certain embodiments’, ‘some embodiments’, ‘various embodiments’, ‘other embodiments’, ‘alternative embodiment’, and the like are intended to mean that any such features are included in one or more embodiments of the present disclosure, but may or may not necessarily be combined in the same embodiments.

It is also noted that the operations and steps described with reference to the preceding figures illustrate only some of the possible scenarios that may be executed by one or more entities discussed herein. Some of these operations may be deleted or removed where appropriate, or these steps may be modified or changed considerably without departing from the scope of the presented concepts. In addition, the timing and sequence of these operations may be altered considerably and still achieve the results taught in this disclosure. The preceding operational flows have been offered for purposes of example and discussion. Substantial flexibility is provided by the embodiments in that any suitable arrangements, chronologies, configurations, and timing mechanisms may be provided without departing from the teachings of the discussed concepts.

As used herein, unless expressly stated to the contrary, use of the phrase ‘at least one of’, ‘one or more of’, ‘and/or’, variations thereof, or the like are open-ended expressions that are both conjunctive and disjunctive in operation for any and all possible combination of the associated listed items. For example, each of the expressions ‘at least one of X, Y and Z’, ‘at least one of X, Y or Z’, ‘one or more of X, Y and Z’, ‘one or more of X, Y or Z’ and ‘X, Y and/or Z’ can mean any of the following: 1) X, but not Y and not Z; 2) Y, but not X and not Z; 3) Z, but not X and not Y; 4) X and Y, but not Z; 5) X and Z, but not Y; 6) Y and Z, but not X; or 7) X, Y, and Z.

Additionally, unless expressly stated to the contrary, the terms ‘first’, ‘second’, ‘third’, etc., are intended to distinguish the particular nouns they modify (e.g., element, condition, node, module, activity, operation, etc.). Unless expressly stated to the contrary, the use of these terms is not intended to indicate any type of order, rank, importance, temporal sequence, or hierarchy of the modified noun. For example, ‘first X’ and ‘second X’ are intended to designate two ‘X’ elements that are not necessarily limited by any order, rank, importance, temporal sequence, or hierarchy of the two elements. Further as referred to herein, ‘at least one of’ and ‘one or more of can be represented using the’ (s)′ nomenclature (e.g., one or more element(s)).

One or more advantages described herein are not meant to suggest that any one of the embodiments described herein necessarily provides all of the described advantages or that all the embodiments of the present disclosure necessarily provide any one of the described advantages. Numerous other changes, substitutions, variations, alterations, and/or modifications may be ascertained to one skilled in the art and it is intended that the present disclosure encompass all such changes, substitutions, variations, alterations, and/or modifications as falling within the scope of the appended claims.

Each example embodiment disclosed herein has been included to present one or more different features. However, all disclosed example embodiments are designed to work together as part of a single larger system or method. This disclosure explicitly envisions compound embodiments that combine multiple previously discussed features in different example embodiments into a single system or method.

The descriptions of the various embodiments have been presented for purposes of illustration but are not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen to best explain the principles of the embodiments, the practical application or technical improvement over technologies found in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. Accordingly, the appended claims should be construed broadly and, in a manner, consistent with the scope of the present disclosure