Patent application title:

Vacuum air pump

Publication number:

US20260055768A1

Publication date:
Application number:

18/813,777

Filed date:

2024-08-23

Smart Summary: A vacuum air pump creates suction to remove air from a space. It has two main parts: a vacuum-generating component and a driving component. The driving component includes a motor that powers a gearbox, which helps transfer energy. A worm rod and worm wheel work together to connect the motor to the vacuum-generating part. This design allows the pump to efficiently create a vacuum by using the motor's power. 🚀 TL;DR

Abstract:

A vacuum air pump is disclosed, comprising a vacuum-generating component. The vacuum-generating component is connected to a driving component, and the vacuum-generating component creates suction through the action of the driving component. The driving component comprises a gearbox lower cover, with a gearbox upper cover installed on top of it. A driving motor is positioned on one side of the gearbox lower cover, with the motor's output shaft passing through the gearbox lower cover and being securely connected to a worm rod. The worm rod is linked to a worm wheel, which in turn is connected to the vacuum-generating component. In this application, a worm wheel and a worm rod are used to transmit the power from the driving motor.

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Classification:

F04C25/02 »  CPC main

Adaptations of pumps for special use of pumps for elastic fluids for producing high vacuum

F04C23/02 »  CPC further

Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids Pumps characterised by combination with or adaptation to specific driving engines or motors

F04C29/005 »  CPC further

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Driving elements, brakes, couplings, transmissions specially adapted for pumps Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions

F04C29/12 »  CPC further

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  -  Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet

F04C29/126 »  CPC further

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - ; Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet with inlet and outlet valves specially adapted for rotary or oscillating piston pumps of the non-return type

F04C18/3441 »  CPC further

Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation

F04C2220/10 »  CPC further

Application Vacuum

F04C18/344 IPC

Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member

F04C29/00 IPC

Component parts, details or accessories of pumps or pumping installations, not provided for in groups  - 

Description

FILD OF THE APPLICATION

The present application relates to pump technology. More specifically, the present application relates to a vacuum air pump.

BACKGROUND

The efficiency of torque transmission and smooth operation are key factors in evaluating the performance of the air pump drive system. As industrial applications continue to expand, the performance requirements for air pump systems are increasing. Traditional air pumps use direct motor drive. While this method meets basic driving needs, it has significant limitations in terms of high torque output, energy consumption, and smooth operation.

It's crucial for air pump systems to have high torque output. In certain scenarios, like heavy-load startup or high-resistance conditions, air pumps need substantial torque to overcome resistance and operate stably. However, the traditional direct-drive motor has limited torque transmission efficiency and struggles to provide enough torque to meet these requirements. Additionally, reducing energy consumption is a key goal for modern industrial systems. The traditional direct-drive motor is not energy efficient during operation due to factors such as friction and heat loss. This not only increases operating costs but also puts unnecessary burdens on the environment. To address these issues, we have made improvements and proposed a vacuum air pump.

SUMMARY

The aim of this application is to improve upon traditional air pumps that utilize direct drive motors. While these pumps may meet basic drive needs, they suffer from limitations in terms of high torque output, energy efficiency, and stability.

In order to achieve the above purpose, the technical solution adopted by this application is:

A vacuum air pump, comprising a vacuum-generating component. The vacuum-generating component is connected to a driving component, and the vacuum-generating component creates suction through the action of the driving component.

Wherein the driving system consists of a gearbox lower cover with an gearbox upper cover installed on top of it; wherein a driving motor is located on one side of the gearbox lower cover. Wherein the output shaft of the driving motor goes through the gearbox lower cover and is securely connected to a worm rod. Wherein the worm rod is linked to a worm wheel, and the worm wheel is connected to a vacuum generating component.

Wherein the vacuum-generating unit comprises an air pump upper cover mounted on the bottom of the gearbox lower cover, the bottom of the air pump upper cover is connected to the air pump lower cover, and the air pump upper cover is connected to an air pump exhaust connection pipe.

Wherein an air pump rotor is disposed of in the air pump upper cover, and a plurality of rotating plates are disposed on the air pump rotor.

Wherein the upper part of the air pump rotor is firmly attached to a transmission shaft. Wherein the upper end of the transmission shaft goes through the air pump upper cover and extends into the gearbox lower cover where it is connected to the worm gear.

Wherein the air pump upper cover has an air pump end cover installed at the front; wherein the air pump end cover has an air cavity and a hole. Wherein there is a one-way air outlet valve on the air pump upper cover, and one end of the one-way air outlet valve is inserted into the hole.

Wherein an air pump assembly includes an air cavity with a piston cavity, where a backing plate is fixed to the inner wall of the air cavity. Wherein a connecting seat is fixed to the air pump upper cover near the air pump end cover, and inserted into the inner wall of the air cavity; wherein the connecting seat has an air inlet positioned corresponding to the backing plate.

Wherein a sealing piston is inserted into the piston cavity, an air inlet connecting rod is inserted into the middle of the sealing piston, one end of the air inlet connecting rod is plugged into the connecting seat, and the other end of the air inlet connecting rod passes through the air pump end cover and is fixedly connected to an air inlet button.

Due to the adoption of the above technical solution, the present application has the following technical advances compared with the prior art:

To address the issues with the current technology, the air pump is now using a motor direct drive approach. This method meets the basic driving requirements but has limitations in terms of high torque output, reduced energy consumption, and smoothness. The new approach involves implementing worm gear and worm transmission. The drive motor power, worm gear, and worm design allow for a larger output torque with a smaller input torque. This means that torque can be transmitted more efficiently when driving an air pump, especially in applications requiring high torque. Additionally, the worm gear and worm have a deceleration function, which reduces the speed while increasing the torque. This feature enables the drive motor to operate at a lower speed when driving the air pump, thus enhancing operating efficiency and reducing energy consumption. Moreover, the movement of the worm gear and worm results in smoother output movement, reducing vibration and shock.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a vacuum air pump, according to an embodiment;

FIG. 2 is a perspective view of a worm rod, according to an embodiment;

FIG. 3 is a perspective view of a sealing piston, according to an embodiment;

FIG. 4 is a perspective view of an air pump rotor, according to an embodiment;

FIG. 5 is a perspective view of an air cavity, according to an embodiment;

FIG. 6 is a front view of piston cavity, according to an embodiment.

As shown in FIG. 1-6:

    • 305. air pump exhaust connection pipe
    • 306. air pump upper cover
    • 307. transmission shaft
    • 308. air pump rotor
    • 309. air pump lower cover
    • 310. gearbox lower cover
    • 311. gearbox upper cover
    • 312. driving motor
    • 313. worm rod
    • 314. worm wheel
    • 315. air pump end cover
    • 316. one-way air outlet valve
    • 317. air cavity
    • 318. piston cavity
    • 319. pad
    • 320. hole
    • 321. connecting seat
    • 322. air inlet
    • 323. air inlet connecting rod
    • 324. sealing piston
    • 325. air inlet button

While the technology is susceptible to various modifications and alternative forms, specifics thereof have been shown by way of example and drawings, and will be described in detail. It should be understood, however, that the application is not limited to the particular embodiments described. On the contrary, the application is to cover modifications, equivalents, and alternatives falling within the spirit and scope of the technology.

DETAILED DESCRIPTION OF EMBODIMENTS

The embodiments of the present technology described herein are not intended to be exhaustive or to limit the technology to the precise forms disclosed in the following detailed description. Rather, the embodiments are chosen and described so that others skilled in the art can appreciate and understand the principles and practices of the present technology.

All publications and patents mentioned herein are hereby incorporated by reference. The publications and patents disclosed herein are provided solely for their disclosure. Nothing herein is to be construed as an admission that the inventors are not entitled to antedate any publication and/or patent, including any publication and/or patent cited herein.

The traditional air pump uses a direct drive method, which has limitations in providing high torque output, reducing energy consumption, and ensuring stability. In some scenarios, when the air pump is faced with high resistance or heavy-duty tasks, it needs a large torque to overcome the resistance and operate smoothly. However, the traditional direct drive method of the motor has limited efficiency in transmitting torque and struggles to provide sufficient torque for these requirements. Additionally, reducing energy consumption is a key goal for modern industrial systems. The traditional motor's direct drive method is not very energy-efficient, leading to higher operating costs and unnecessary environmental impact.

To solve this technical problem, the application provides a vacuum air pump.

Specifically, please refer to FIG. 1-4, the vacuum air pump specifically includes:

The vacuum-generating component is connected to a driving component, and the vacuum-generating component creates suction through the action of the driving component.

Wherein the driving system consists of a gearbox lower cover 310 with an gearbox upper cover 311 installed on top of it; wherein a driving motor 312 is located on one side of the gearbox lower cover 310. Wherein the output shaft of the driving motor 312 goes through the gearbox lower cover 310 and is securely connected to a worm rod 313. Wherein the worm rod 313 is linked to a worm wheel 314, and the worm wheel 314 is connected to a vacuum generating component.

The vacuum air pump provided by this application adopts a worm gear 314 and a worm rod 313 to transmit the power of the drive motor 312. The design of the worm gear 314 and the worm rod 313 allows a larger output torque to be generated with a smaller input torque, which means that the torque can be transmitted more effectively when driving the air pump, especially in applications requiring high torque; the worm gear 314 and the worm rod 313 also have a deceleration function, that is, the torque is increased while the rotation speed is reduced. This characteristic enables the drive motor 312 to run at a lower rotation speed when driving the air pump, thereby improving the operating efficiency and reducing energy consumption; the movement characteristics of the worm gear 314 and the worm rod 313 make the output movement smoother and reduce vibration and impact.

In order to help technical professionals understand the solution provided by the utility model, the technical solution in the utility model embodiment will be clearly and completely described below, along with accompanying drawings.

It's important to note that the embodiments of the utility model, as well as the features and technical solutions within the embodiments, can be combined without conflict.

Also, similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it doesn't need to be further defined or explained in subsequent drawings.

As shown in FIG. 1-4, a vacuum air pump, comprising a vacuum-generating component; the vacuum-generating component is connected to a driving component, and the vacuum-generating component creates suction through the action of the driving component.

The driving system consists of a gearbox lower cover 310, a gearbox upper cover 311 installed on top of the gearbox lower cover 310, a driving motor 312 mounted on one side of the gearbox lower cover 310, and a worm rod 313 fixedly connected to the output shaft of the driving motor 312, which penetrates the gearbox lower cover 310. The worm rod 313 is linked to a worm wheel 314, and the worm wheel 314 is connected to a vacuum generating part. This configuration allows for efficient power transmission from the driving motor 312. The worm wheel 314 and the worm rod 313 enable a larger output torque to be generated with a smaller input torque, making it more effective for driving an air pump, especially in high-torque applications. Additionally, the worm wheel 314 and the worm rod 313 provide a speed reduction function, which allows the driving motor 312 to operate at a lower speed, improving operating efficiency and reducing energy consumption. Furthermore, the motion characteristics of the worm wheel 314 and the worm rod 313 result in smoother output motion, reducing vibration and impact.

As shown in FIG. 1-4, the vacuum-generating unit comprises an air pump upper cover 306 mounted on the bottom of the gearbox lower cover 310, the bottom of the air pump upper cover 306 is connected to the air pump lower cover 309, and the air pump upper cover 306 is connected to an air pump exhaust connection pipe 305. The air pump exhaust connection pipe 305 is used to connect to the target area.

As shown in FIG. 4, an air pump rotor 308 is disposed of in the air pump upper cover 306, and a plurality of rotating plates are disposed on the air pump rotor 308. The number of the rotors is at least two. During the rotation of the rotor driven by the air pump rotor 308, the air in the target area can be pumped out through the air pump exhaust connection pipe 305 to form a vacuum environment in the target area.

As shown in FIG. 2, the upper part of the air pump rotor 308 is firmly attached to a transmission shaft 307. Wherein the upper end of the transmission shaft 307 goes through the air pump upper cover 306 and extends into the gearbox lower cover 310 where it is connected to the worm gear 314. The worm wheel 314 can drive the transmission shaft 307 to rotate under the drive of the worm rod 313 and then can drive the air pump rotor 308 to rotate.

As shown in FIG. 1-4, the air pump upper cover 306 has an air pump end cover 315 installed at the front; wherein the air pump end cover 315 has an air cavity 317 and a hole 320. Wherein there is a one-way air outlet valve 316 on the air pump upper cover 306, and one end of the one-way air outlet valve 316 is inserted into the hole 320. The one-way air outlet valve 316 can realize one-way exhaust from the inside of the air pump upper cover 306 to the outside.

As shown in FIG. 3-6, an air pump assembly includes an air cavity 317 with a piston cavity 318, where a backing plate 319 is fixed to the inner wall of the air cavity 317; wherein a connecting seat 321 is fixed to the air pump upper cover 306 near the air pump end cover 315, and inserted into the inner wall of the air cavity 317; wherein the connecting seat 321 has an air inlet 322 positioned corresponding to the backing plate 319. When the outside air enters the air pump upper cover 306 through the air inlet 322, the vacuum adsorption can be released.

As shown in FIG. 4, a sealing piston 324 is inserted into the piston cavity 318, an air inlet connecting rod 323 is inserted into the middle of the sealing piston 324, one end of the air inlet connecting rod 323 is plugged into the connecting seat 321, and the other end of the air inlet connecting rod 323 passes through the air pump end cover 315 and is fixedly connected to an air inlet button 325. When the sealing piston 324 is inserted into the piston cavity 318, it can seal the piston cavity 318 and then seal the air inlet 322. When the air inlet button 325 is pushed, the air inlet button 325 drives the sealing piston 324 to move through the air inlet connecting rod 323 so that the sealing piston 324 is separated from the piston cavity 318. At this time, the outside air enters the piston cavity 318 through the connection between the air inlet connecting rod 323 and the air pump end cover 315, then enters the air pump upper cover 306 through the air inlet 322 and finally enters the target area through the air pump exhaust connecting pipe 305 to release the vacuum adsorption.

The operational instructions for the vacuum air pump are as follows:

The driving motor 312 is powered on and can drive the transmission shaft 307 to rotate through the worm rod 313 and the worm gear 314, thereby driving the air pump rotor 308 to drive the rotating plate to rotate to discharge the air in the air pump cover 306 from the one-way air outlet valve 316 in one direction, and then the vacuum environment is extracted in the target area through the air pump exhaust connection pipe 305.

After use, the air intake button 325 is pressed, and the air intake button 325 drives the sealing piston 324 to move through the air intake connecting rod 323 so that the sealing piston 324 is separated from the piston chamber 318. At this time, the outside air enters the piston chamber 318 through the connection between the air intake connecting rod 323 and the air pump end cover 315 and then enters the air pump upper cover 306 through the air intake port 322 to release the vacuum.

Claims

1. A vacuum air pump, comprising a vacuum-generating component; the vacuum-generating component is connected to a driving component, and the vacuum-generating component creates suction through the action of the driving component;

wherein the driving system consists of a gearbox lower cover with an gearbox upper cover installed on top of it; wherein a driving motor is located on one side of the gearbox lower cover; wherein the output shaft of the driving motor goes through the gearbox lower cover and is securely connected to a worm rod; wherein the worm rod is linked to a worm wheel, and the worm wheel is connected to a vacuum generating component.

2. The vacuum air pump of claim 1, wherein the vacuum-generating unit comprises an air pump upper cover mounted on the bottom of the gearbox lower cover, the bottom of the air pump upper cover is connected to the air pump lower cover, and the air pump upper cover is connected to an air pump exhaust connection pipe.

3. The vacuum air pump of claim 2, wherein an air pump rotor is disposed of in the air pump upper cover, and a plurality of rotating plates are disposed on the air pump rotor.

4. The vacuum air pump of claim 3, wherein the upper part of the air pump rotor is firmly attached to a transmission shaft; wherein the upper end of the transmission shaft goes through the air pump upper cover and extends into the gearbox lower cover where it is connected to the worm gear.

5. The vacuum air pump of claim 4, wherein the air pump upper cover has an air pump end cover installed at the front; wherein the air pump end cover has an air cavity and a hole; wherein there is a one-way air outlet valve on the air pump upper cover, and one end of the one-way air outlet valve is inserted into the hole

6. The vacuum air pump of claim 5, wherein an air pump assembly includes an air cavity with a piston cavity, where a backing plate is fixed to the inner wall of the air cavity; wherein a connecting seat is fixed to the air pump upper cover near the air pump end cover, and inserted into the inner wall of the air cavity; wherein the connecting seat has an air inlet positioned corresponding to the backing plate.

7. The vacuum air pump of claim 6, wherein a sealing piston is inserted into the piston cavity, an air inlet connecting rod is inserted into the middle of the sealing piston, one end of the air inlet connecting rod is plugged into the connecting seat, and the other end of the air inlet connecting rod passes through the air pump end cover and is fixedly connected to an air inlet button.

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