Automatic Dispensing Device for Laundry Treatment Apparatus

Description

FIELD

The application belongs to the field of washing machine, and in particular relates to an automatic dispensing device for laundry treatment apparatus.

BACKGROUND

Washing machine is a household appliance most commonly used in our daily life. With the development and progress of technology, it is focused more and more on improving the user's experience in developing a washing machine on the basis of meeting the basic laundry requirements. More and more washing machines are capable of automatically dispensing detergent. In this way, users no longer need to manually feed detergent in the washing machine in washing clothes, which is greatly easy to use and improved in the user experience.

The dispensing device of existing washing machine is mainly controlled by the electronic valve, and is capable of dispensing detergent under the Venturi effect or by the small pump installed therein. The dispensing device with the above structure is complex in structure, resulting in high production cost of the whole machine, poor performance, easy failure, and increasing maintenance cost. And a large installation space is occupied. In addition, for the existing automatic dispensing device, there are the problems of lower accuracy and poor reliability of dispensing detergent.

In view of this, the present application is provided.

SUMMARY

An objective of the present application is to overcome the deficiencies of the prior art. An automatic dispensing device for laundry treatment apparatus is provided to solve the problem in the prior art that detergent cannot be accurately dispensed.

In order to solve the above problems, the technical solutions of the present application are the follows. An automatic dispensing device for laundry treatment apparatus comprises:

• • a shell, providing with a water inlet and a liquid outlet;
  • a flexible component, disposed inside the shell to divide an interior of the shell into an accommodating chamber and a liquid suction chamber, wherein the accommodating chamber is connected with the water inlet, the liquid suction chamber is used for accommodating a laundry treatment agent and is connected with the liquid outlet.

The flexible component has a deformation part in a natural state. In supplying water through the water inlet, the flexible component is pressed to deform the deformable part, and the flexible component is configured to move toward the liquid suction chamber, so the laundry treatment agent is discharged out of the liquid suction chamber through the liquid outlet.

In the present application, there is a deformation part on the flexible component in a natural state. When water flows in the water inlet, the deformation part of the flexible component is pressed to be deformed, so that the flexible component moves toward the liquid suction chamber, and the laundry treatment agent is discharged out of the liquid suction chamber from the liquid outlet. Thereby the laundry treatment agent is dispensed into the washing machine even under low water pressure condition, and it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

As an embodiment, the flexible component further comprises a covering part, and the covering part is disposed in a middle of the flexible component. The deformation part is connected to an outer periphery of the covering part.

As an embodiment, the flexible component is disposed on an inner wall of the liquid suction chamber, and an inner diameter of the liquid suction chamber is larger than an inner diameter of the accommodating chamber. The covering part is configured to block a communication port between the accommodating chamber and the liquid suction chamber, and the deformable part is disposed on an outer periphery of the communication port.

As an embodiment, the covering part is configured to cover the communication port between the accommodating chamber and the liquid suction chamber in a natural state. The deformable part is connected between the covering part and the inner wall of the liquid suction chamber.

As an embodiment, the deformation part is folded and protruded toward the liquid suction chamber.

As an embodiment, the covering part comprises:

• • a protruding structure, disposed in a middle of the covering part, wherein one end of the protruding structure is extended into the accommodating chamber for blocking the communication port between the accommodating chamber and the liquid suction chamber; and
  • a buffer structure, disposed outside the covering part, of which an inner periphery is connected with the protruding structure, and an outer periphery is connected with the deformation part.

As an embodiment, the automatic dispensing device also comprises a protection device disposed in the liquid suction chamber and connected with the flexible component, and the protection device is used for providing a restoring force for the flexible component to return to a natural state when a force pressing the flexible component is reduced.

As an embodiment, the protection device comprises:

• • a protection sleeve, of which one end is connected with the flexible component; and
  • an elastic component, of which one end is connected with the protection sleeve and another end is connected with the inner wall of the liquid suction chamber.

As an embodiment, one end of the protection sleeve is a closed end, and a protruding ring is provided in a middle of the closed end and protruded toward the flexible component to form a concave chamber.

Another end of the protruding structure is protruded toward the protection sleeve to form a first protrusion, and the first protrusion is inserted into the concave chamber.

As an embodiment, another end of the protection sleeve is an open end, and one end of the elastic component is inserted into an interior of the protection sleeve and is connected with the protection sleeve.

By the above technical solutions of the present application, there are the following advantages compared with the prior art.

(1) There is a deformation part on the flexible component in a natural state. When water flows in the water inlet, the deformation part of the flexible component is pressed to be deformed, so that the flexible component moves toward the liquid suction chamber, and the laundry treatment agent is discharged out of the liquid suction chamber from the liquid outlet. Thereby the laundry treatment agent is dispensed into the washing machine even under low water pressure condition, and it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

(2) The deformable part of the present application is disposed on the periphery of the communication port between the accommodating chamber and the liquid suction chamber and is folded toward the liquid suction chamber, so that there is sufficient deformation space for the deformable part. When the water pressure of the water flow through the water inlet is larger, there is sufficient deformation space inside the liquid suction chamber for the deformable part.

(3) One end of the protection sleeve of the present application is a closed end, and the first protrusion at the other end of the protruding structure is inserted into the concave chamber formed on the closed end; another end of the protection sleeve is an open end, and one end of the elastic component is extended into the interior of the protection sleeve and is connected with the protection sleeve. Thereby the flexible component and the protection sleeve can be separated from each other during movement, and it is avoided that the elastic component is in contact with the flexible component to damage on the flexible component, so the service life of the automatic dispensing device is increased.

(4) The automatic dispensing device of the laundry treatment apparatus of the present application has an optimized structure and lower production cost.

The embodiments of the present application are further described in detail below in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

The accompanying drawings are part of the present disclosure and are used to provide a further understanding of the present application. The exemplary embodiments of the present application and their descriptions are used to explain the present application, but do not constitute an improper limitation of the present application. The drawings described below are only some embodiments. For those skilled in art, other drawings can be obtained based on these drawings without creative work. In the drawings:

FIG. 1 is a structural diagram of an automatic dispensing device for a laundry treatment apparatus according to the present application;

FIG. 2 is a detailed structural diagram of a flexible component and the protection device of the present application;

FIG. 3 is a structural diagram of an automatic dispensing device for a laundry treatment apparatus according to the present application from another angle;

FIG. 4 is an overall diagram of an automatic dispensing device for a laundry treatment apparatus according to the present application;

FIG. 5 is a structural diagram of an automatic delivery device for a laundry treatment apparatus according to the present application;

FIG. 6 is a structural diagram of an automatic dispensing device of a laundry treatment apparatus according to the present application.

Wherein: 1. Shell; 11. Accommodating chamber; 12. Liquid suction chamber; 13. First shell; 131. Water inlet; 132. Pressure relief part; 133. First annular connecting edge; 134. Third annular connecting edge; 135. First ring section; 136. Second ring section; 14. Second shell; 141. Suction pipe; 142. Dispensing pipe; 143. Second annular connecting edge; 144. Second protrusion; 15. Third shell; 151. Liquid inlet; 152. Liquid outlet; 16. Annular sealing groove; 2. Flexible component; 21. Covering part; 211. Protruding structure; 2111. First protrusion; 212. Buffer structure; 22. Deformation part; 23. Fixing part; 3. Protection device; 31. Protection sleeve; 311. Concave chamber; 312. Fixing rib; 313. Protruding ring; 32. Elastic component; 4. Dispensing box; 41. Mixing and conveying waterway; 411. Detergent conveying waterway; 412. Pressure relief waterway; 42. Detergent storage device; 43. Dispensing port; 44. Feeding port.

It should be noted that these drawings and descriptions are not intended to limit the scope of the present application in any way, but are intended to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

DETAILED DESCRIPTION

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments are clearly and completely described below in conjunction with the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application but are not used to limit the scope of the present application.

In the description of the present application, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms “installed”, “connected”, and “connected” should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

As shown in FIGS. 1 to 6, an automatic dispensing device for a laundry treatment apparatus according to the present application comprises a shell 1 and a flexible component 2.

The shell 1 is provided with a water inlet 131 and a liquid outlet 152.

The flexible component 2 is disposed inside the shell 1. The flexible component 2 is configured to divide an interior of the shell 1 into an accommodating chamber 11 and a liquid suction chamber 12. The accommodating chamber 11 is connected with the water inlet 131, the liquid suction chamber 12 is connected with the liquid outlet 152. The liquid suction chamber 12 is used for accommodating the laundry treatment agent.

The flexible component 2 has a deformation part 22 in a natural state. In supplying water through the water inlet 131, the water flow presses the flexible component 2 to deform the deformable part 22, and the flexible component 2 moves toward the liquid suction chamber 12, so the laundry treatment agent is discharged out of the liquid suction chamber 12 through the liquid outlet 152.

In the present application, there is a deformation part 22 on the flexible component 2 in a natural state. When water flows in the water inlet 131, the deformation part 22 of the flexible component 2 is pressed to be deformed, so that the flexible component 2 moves toward the liquid suction chamber 12, and the laundry treatment agent is discharged out of the liquid suction chamber 12 from the liquid outlet 152. Thereby the laundry treatment agent is dispensed into the washing machine even under low water pressure condition, and it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

Specifically, one end of the accommodating chamber 11 is connected with the water inlet 131. The other end of the accommodating chamber 11 is blocked by the flexible component 2.

It should be explained that the water inlet 131 is directly connected with the accommodating chamber 11, so that the water flow flowing into the automatic dispensing device through the water inlet 131 is capable of directly acting on the flexible component 2, and the flexible component 2 can move toward the liquid suction chamber 12 under low water pressure to dispense the laundry treatment agent into the washing machine. The automatic dispensing device of the present application is controlled by supplying water in the washing machine. The dispensing principle of the automatic dispensing device is changed, the structure of the automatic dispensing device is more optimized, and the production cost is lower.

The shell 1 is also provided with a liquid inlet 151. When water is stopped being supplying through the water inlet 131, the deformation part 22 is restored to a natural state, and moves toward the accommodating chamber 11. So the laundry treatment agent is suctioned into the liquid suction chamber 12 from the liquid inlet 151.

In addition, the laundry treatment agent of the present application comprises but is not limited to detergent, softener, disinfectant, laundry care agent, or fragrance, etc.

Furthermore, the flexible component 2 further comprises a covering part 21, and the covering part 21 is disposed in a middle of the flexible component 2. The deformation part 22 is connected to an outer periphery of the covering part 21.

In the present application, the covering part 21 is disposed in the middle of the flexible component 2 so that the water flowing into the accommodating chamber 11 directly acts on the covering part 21, the laundry treatment agent is dispensed into the washing machine even under low water pressure conditions, and it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

Specifically, an elastic variable of the deformation part 22 is smaller than an elastic variable of the covering part 21. It should be explained that when the covering part 21 is pressed by the water flow, the deformable part 22 begins to generate elastic deformation to cause the covering part 21 to move toward the liquid suction chamber 12 due to the elastic variable of the deformable part 22 being smaller than the elastic variable of the covering part 21. Thereby the laundry treatment agent is dispensed into the washing machine.

As shown in FIG. 2, the flexible component 2 is disposed on an inner wall of the liquid suction chamber 12.

An inner diameter of the liquid suction chamber 12 is greater than an inner diameter of the accommodating chamber 11. The covering part 21 is configured to block a communication port between the accommodating chamber 11 and the liquid suction chamber 12, and the deformable part 22 is disposed on an outer periphery of the communication port.

In the present application, the communication port between the accommodating chamber 11 and the liquid suction chamber 12 is blocked by the covering part 21, and the deformable part 22 is disposed on the outer periphery of the communication port. So the flexible component 2 further moves toward the liquid suction chamber 12 when being acted by the water flow with a relatively low water pressure. Thereby it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

Specifically, the outer periphery of the covering part 21 is connected to the inner periphery of the deformation part 22. More specifically, the deformation part 22 is folded from the outer periphery of the covering part 21 toward the liquid suction chamber 12.

The deformable part 22 is first extended from the outer periphery of the covering part 21 toward the liquid suction chamber 12, and then bent toward the accommodating chamber 11.

In one embodiment, the inner diameter of the covering part 21 is smaller than the inner diameter of the accommodating chamber 11, and the covering part 21 is capable of blocking the communication port between the accommodating chamber 11 and the liquid suction chamber 12.

In another embodiment, the inner diameter of the covering part 21 is larger than the inner diameter of the accommodating chamber 11, and the covering part 21 is capable of blocking the communication port between the accommodating chamber 11 and the liquid suction chamber 12.

In a solution of the present application, the inner diameter of the covering part 21 is larger than the inner diameter of the accommodating chamber 11. Specifically, the covering part 21 covers the communication port between the accommodating chamber 11 and the liquid suction chamber 12 in a natural state. The deformation part 22 is connected between the covering part 21 and the inner periphery of the liquid suction chamber 12.

In the present application, the covering part 21 is configured to cover the communication port between the accommodating chamber 11 and the liquid suction chamber 12 in a natural state, so that all the water in the accommodating chamber 11 acts on the covering part 21, and then the covering part 21 moves toward the liquid suction chamber 12 under the action of the water flow with a relatively low water pressure. Thereby it is solved the technical problem in the prior art that the laundry treatment agent cannot be accurately dispensed.

In addition, the deformable part 22 is connected between the covering part 21 and the inner wall of the liquid suction chamber 12. So, the accommodating chamber 11 is completely isolated from the liquid suction chamber 12; and there is a sufficient deformation space for the deformable part 22. When the pressure of the water flow flowing in the water inlet 131 is larger, there is a sufficient deformation space inside the liquid suction chamber 12 for the deformable part 22.

Specifically, the deformation part 22 is folded and protruded toward the liquid suction chamber 12.

Preferably, the deformation part 22 is configured as multiple folds.

Furthermore, the covering part 21 comprises a protruding structure 211 and a buffer structure 212.

The protruding structure 211 is disposed in a middle of the covering part 21. One end of the protruding structure 211 is protruded and extended into the accommodating chamber 11. The protruding structure 211 is used to block the communication port between the accommodating chamber 11 and the liquid suction chamber 12.

The buffer structure 212 is disposed outside the covering part 21. An inner periphery of the buffer structure 212 is connected with the protruding structure 211, and an outer periphery of the buffer structure 212 is connected with the deformation part 22.

In the present application, one end of the protruding structure 211 is extended into the accommodating chamber 11 to block the communication port between the accommodating chamber 11 and the liquid suction chamber 12, and the water flow through the water inlet 131 is configured to act entirely on the protruding structure 211. Thereby the kinetic energy of the water flow is entirely converted into the elastic potential energy of the flexible component 2, and the energy is fully utilized. At the same time, the energy is saved energy, it is reduced in the costs and the requirement of customer is met.

Specifically, one side of the buffer structure 212 is configured to cover the communication port between the accommodating chamber 11 and the liquid suction chamber 12 in a natural state.

In addition, the flexible component 2 further comprises a fixing part 23. An elastic coefficient of the fixing part 23 is greater than an elastic coefficient of the deformation part 22. The fixing part 23 is used to fix the flexible component 2 on the inner wall of the first shell 13.

The shell 1 comprises a first shell 13 and a second shell 14. The first shell 13 and the second shell 14 are fixedly connected by bolts.

In one embodiment, as shown in FIG. 3, the first shell 13 and the second shell 14 abut against each other to form an annular sealing groove 16. The fixing part 23 is pressed by the first shell 13 and the second shell 14 to fix in the annular sealing groove 16.

In the present application, the fixing part 23 is fixed in the annular sealing groove 16 through the first shell 13 and the second shell 14, thereby the sealing between the accommodating chamber 11 and the liquid suction chamber 12 is kept well, and the deformation part 22 is prevented from moving inside the liquid suction chamber 12 when the flexible component 2 is subjected to pressure.

Specifically, the first shell 13 comprises a first annular connecting edge 133, and the second shell 14 comprises a second annular connecting edge 143. The first annular connecting edge 133 and the second annular connecting edge 143 abut against each other to form an annular sealing groove 16.

It should be noted that a volume of the annular sealing groove 16 is smaller than a volume of the fixing part 23.

More specifically, a junction of an inner wall of the first shell 13 with the second shell 14 is protruded outward to form a first annular connecting edge 133 and a third annular connecting edge 134.

A second protrusion 144 is disposed on a second annular connecting edge 143. There is a distance between the first annular connecting edge 133 and the second protrusion 144. The first annular connecting edge 133, the third annular connecting edge 134, the second annular connecting edge 143 and the second protrusion 144 form an annular sealing groove 16.

In another embodiment, a limiting structure is provided on the inner wall of the first shell 13, and the fixing part 23 is disposed on the limiting structure. The limiting structure makes the fixing part 23 being fixed inside the shell 1, so when the deformable part 22 of the flexible component 2 moves inside the shell 1, the accommodating chamber 11 is not communicated with the liquid suction chamber 12.

Specifically, the limiting structure comprises an annular limiting rib, and the annular limiting rib is convexly provided on the inner wall of the first shell 13. One end of the fixing part 23 is configured to abut against the annular limiting rib. In detail, the annular limiting rib is abutted against the fixing part 23. The fixing part 23 is connected with the outer periphery of the deformation part 22.

In another embodiment, an annular sealing groove 16 is provided on the first annular connecting edge 133 and/or the second annular connecting edge 143. The fixing part 23 is fixed in the annular sealing groove 16 on the first annular connecting edge 133 and/or the second annular connecting edge 143.

Specifically, the annular sealing groove 16 is arranged on the first annular connecting edge 133 and/or the second annular connecting edge 143. The volume of the annular sealing groove 16 is smaller than the volume of the fixing part 23.

In another embodiment, the first annular connecting edge 133 and the second annular connecting edge 143 are configured to squeeze and fix the fixing part 23.

In addition, the first shell 13 comprises a first ring section 135 and a second ring section 136. The second ring section 136 is provided with a pressure relief port. A pressure relief part 132 is extended from the pressure relief port to the outside of the second ring section 136.

The annular sealing groove 16 is disposed between an opening end of the first shell 13 and the pressure relief port.

Specifically, the pressure relief port is disposed at a junction of the first ring section 135 and the second ring section 136. The pressure relief part 132 has an extension length.

As shown in FIG. 4, a suction pipe 141 and a dispensing pipe 142 are provided on the second shell 14. The suction pipe 141 is connected with the storage device for storing the laundry treatment agent, and is used to suck the laundry treatment agent inside the storage device into the liquid suction chamber 12. The dispensing pipe 142 is communicated with the interior of the laundry treatment apparatus, and is used to deliver the laundry treatment agent inside the liquid suction chamber 12 into the laundry treatment apparatus.

The first shell 13 further comprises a pressure relief part 132, and the flexible component 2 is configured to cover the pressure relief part 132 in a natural state. The pressure relief part 132 is in communication with the accommodating chamber 11. The deformation part 22 is configured to cover the pressure relief part 132 in a natural state.

The deformation part 22 is disposed on the outer periphery of the communication port. The deformation part 22 is protruded toward the interior of the liquid suction chamber 12 from the covering part 21 in a manner of folding, passes through the pressure relief part 132, and is extended to the inner periphery of the liquid suction chamber 12.

When water flows in through the water inlet 131, the flexible component 2 is pressed to deform the deformable part 22, so that the flexible component 2 moves toward the liquid suction chamber 12, and the laundry treatment agent is discharged out of the liquid suction chamber 12 from the liquid outlet 152. At the same time, the pressure relief part 132 is opened, and the laundry treatment agent discharged is delivered into the laundry treatment apparatus by the water flow.

As shown in FIGS. 2 to 3, the automatic dispensing device further comprises a protection device 3. The protection device 3 is disposed in the liquid suction chamber 12, and the protection device 3 is connected with the flexible component 2. The protection device 3 is used to provide a restoring force for the flexible component 2 to return to a natural state when the force pressing the flexible component 2 is reduced.

In the present application, the protection device 3 is connected with the flexible component 2, so that the flexible component 2 can quickly return to a natural state when the force pressing the flexible component 2 is reduced. Meanwhile, it also avoided that the flexible component 2 is collided with other components and damaged when the water pressure of the water flow flowing through the water inlet 131 is larger, thereby affecting the service life of the automatic dispensing device.

Specifically, one end of the protection device 3 is configured to face a bottom of the liquid suction chamber 12, and the other end of the protection device 3 is connected with the buffer structure 212 of the flexible component 2. It can be understood that the protective device 3 can provide a restoring force for the flexible component 2 to return to a natural state, when the force pressing the flexible component 2 is reduced, thereby the flexible component 2 is driven to move toward the accommodating chamber 11. The protection device 3 is prevented from colliding with the shell 1 by the buffer structure 212, so there is no damage on the protection device 3 and/or the shell 1.

It should be explained that the protection device 3 may also be disconnected from the flexible component 2. Water flowing in the water inlet 131 presses the flexible component 2 to deform the flexible component 2, so the volume inside the liquid suction chamber 12 is changed, and the laundry treatment agent is dispensed into the washing machine or the laundry treatment agent is sucked into the liquid suction chamber 12.

When water is stopped flowing in through the water inlet 131, an elastic component 32 is configured to restore the deformation to push a protection sleeve 31 to move toward the accommodating chamber 11, and the deformable part 22 of the flexible component 2 restores the deformation and moves to an initial position for recovering the pressure relief part 132. The volume of the interior of the liquid suction chamber 12 is increased, and the laundry treatment agent is sucked into the liquid suction chamber 12.

Furthermore, the protection device 3 comprises a protection sleeve 31 and an elastic component 32.

One end of the protection sleeve 31 is connected with the flexible component 2.

One end of the elastic component 32 is connected with the protection sleeve 31, and the other end of the elastic component 32 is connected with the inner wall of the liquid suction chamber 12.

In the present application, one end of the protection sleeve 31 is connected with the flexible component 2, one end of the elastic component 32 is connected with the protection sleeve 31, and the other end of the elastic component 32 is connected with the inner wall of the liquid suction chamber 12, thereby when the force for pressing the flexible component 2 is reduced, a restoring force is provided to restore the flexible component 2 to be a natural state.

Furthermore, one end of the protection sleeve 31 is a closed end, and a protruding ring 313 is provided in a middle of the closed end and protruded toward the flexible component 2 to form a concave chamber 311.

The other end of the protruding structure 211 is protruded toward the protection sleeve 31 to form a first protrusion 2111, and the first protrusion 2111 is inserted into the concave chamber 311.

Specifically, the protruding ring 313 is provided in the middle of the closed end and protruded toward the flexible component 2 to form the concave chamber 311, and the bottom of the concave chamber 311 continues to be recessed toward the interior of the protection sleeve 31. The other end of the protruding structure 211 is protruded toward the protection sleeve 31 to form the first protrusion 2111, and a chamber is formed in the middle of the first protrusion 2111. There is a gap between an annular side wall of the first protrusion 2111 and an inner side wall of the protruding structure 211. The gap is greater than or equal to a cross-sectional length of a side wall of the concave chamber 311.

The first protrusion 2111 is inserted into the concave chamber 311, and the protruding ring 313 is inserted into the gap between the annular side wall of the first protrusion 2111 and the inner side wall of the protruding structure 211.

More specifically, the first protrusion 2111 is extended toward the protection sleeve 31 from a first position in the middle of the covering part 21, and bent to extend toward the pressure relief part 132, and then bent again to extend toward the accommodating chamber 11. An extended end of the first protrusion 2111 is connected to a second position in the middle of the covering part 21. There is a distance between the first position, the second position and the edge of the covering part 21.

Furthermore, the other end of the protection sleeve 31 is an open end. One end of the elastic component 32 is inserted into the protection sleeve 31 and is connected with the protection sleeve 31.

Specifically, a fixing rib 312 is disposed on the inner wall of the closed end of the protection sleeve 31, and one end of the elastic component 32 is fixed inside the protection sleeve by the fixing rib 312.

The shell 1 further comprises a third shell 15 which is disposed inside the liquid suction chamber 12. The third shell 15 is disposed below the protection sleeve 31, and an inner diameter of the third shell 15 is greater than an outer diameter of the protection sleeve 31.

Specifically, one end of the third shell 15 is an open end, and the other end of the elastic component 32 is inserted into the third shell 15 of the protection sleeve 31 and is fixed on a bottom wall of the third shell 15.

The opening end of the third shell 15 is disposed opposite to the opening end of the protection sleeve 31. When water flows in through the water inlet 131, the water flow presses the flexible component 2 to deform the deformable part 22, and the flexible component 2 moves toward the liquid suction chamber 12 and drives the protection sleeve 31 to squeeze the elastic component 32, so that the elastic component 32 is compressed. The outer diameter of the protection sleeve 31 is smaller than the inner diameter of the third shell 15, so the protection sleeve 31 can move in the inside and the outside of the third shell 15. In addition, due to the other end of the protection sleeve 31 being a closed end, the pressure on the laundry treatment agent inside the suction chamber 12 is guaranteed when the protection sleeve 31 moves into the third shell 15, so that the laundry treatment agent is discharged out of the liquid suction chamber 12 to the maximum extent.

The other end of the third shell 15 is a closed end, and the liquid outlet 152 and the liquid inlet 151 are arranged on the closed end of the third shell 15.

A one-way valve is provided in the liquid outlet 152 and the liquid inlet 151, and the one-way valve is used to allow the laundry treatment agent to enter the liquid suction chamber 12 only from the liquid inlet 151 and to be discharged out of the liquid suction chamber 12 only from the liquid outlet 152.

A specific embodiment, the liquid outlet 152 of the present application is a liquid outlet pipe, and a one-way conducting device for discharging liquid is installed on the liquid outlet pipe. The one-way conducting device for discharging liquid comprises a valve body, a valve cover, a valve core and a return spring. A hollow channel is formed inside the valve body, and one end of the hollow channel of the valve body is connected with the liquid outlet pipe. A valve cover is installed on the end of the hollow channel of the valve body away from the liquid outlet pipe. A valve hole is formed on the valve cover. One end of the valve core is installed on the valve cover in a manner of relative movement, and the other end of the valve core cooperates with one end of the hollow channel of the valve body connected with the liquid outlet pipe. One end of the return spring is abutted against the valve cover, and the other end is abutted against the valve core.

The washing machine is controlled to feed water from the water inlet 131. The water flow presses the flexible component 2 to move toward the liquid suction chamber and the deformable part 22 is deformed, so the volume of the liquid suction chamber is reduced, and the pressure of the interior of the liquid suction chamber is increased. Accordingly, the valve core is pushed not to block the hollow channel inside the valve body, so the one-way conduction device for discharging liquid is connected with the liquid outlet pipe for discharging the laundry treatment agent for dispensing.

The liquid inlet 151 of the present application is a liquid inlet pipe, in which a one-way conducting device for feeding liquid is installed. The one-way conducting device for feeding liquid comprises a valve body, a valve cover, a valve core and a return spring. A hollow channel is formed inside the valve body, and one end of the hollow channel of the valve body is connected with a liquid storage box, and the other end is connected with the liquid inlet pipe. A valve cover is installed on the end of the hollow channel of the valve body connected with the liquid inlet pipe. A valve hole is formed on the valve cover. One end of the valve core is installed on the valve cover in a manner of relative movement, and the other end of the valve core cooperates with one end of the hollow channel of the valve body connected with the liquid inlet pipe. One end of the return spring is abutted against the valve cover, and the other end is abutted against the valve core.

The washing machine is controlled to feed water from the water inlet 131. The water flow presses the flexible component 2 to move toward the liquid suction chamber, and the deformation part 22 is deformed, so the volume of the liquid suction chamber is reduced, and the pressure of the interior of the liquid suction chamber is increased. Accordingly, the valve core is pushed to be in hermetical contact with the hollow channel inside the valve body, so the one-way conduction device for feeding liquid is kept closed. When the washing machine is controlled to stop feeding water from the water inlet 131, the deformation of the deformation part 22 is restored, the volume of the liquid suction chamber is increased, and the pressure therein is decreased. Accordingly, the valve core is pushed by the external pressure, and the valve core no longer blocks the hollow channel inside the valve body, so the one-way conduction device for feeding liquid is connected to allow the laundry treatment agent to flow in the liquid suction chamber.

Furthermore, in order to increase the sealing performance of the one-way conducting device for discharging liquid and the one-way conducting device for feeding liquid, a sealing ring is installed on a sealing end of the valve core.

It should be noted, in the initial state of the automatic dispensing device of the present application, the one-way conducting devices on both the liquid inlet 151 and the liquid outlet 152 remain closed. In the initial use, the liquid suction chamber is filled with air, therefore, when the washing machine is controlled to feed water from the water inlet 131 for the first time, the air in the liquid suction chamber is discharged. The washing machine is controlled to stop feeding water from the water inlet 131, the flexible component 2 is returned to the natural state, and the laundry treatment agent is sucked into the liquid suction chamber. When the washing machine is controlled to feed the water from the water inlet 131 again, the flexible component 2 moves toward the liquid suction chamber to discharge the laundry treatment agent through the liquid outlet 152, thereby it is achieved in automatically dispensing.

As shown in FIGS. 5 to 6, the automatic dispensing device further comprises a dispensing box 4 comprising a first chamber and a second chamber. The first chamber is respectively connected with the pressure relief part 132 and the dispensing pipe 142; and the second chamber is connected with the suction pipe 141.

Specifically, the first chamber is a mixing and conveying waterway 41 connected with the pressure relief part 132 and the dispensing pipe 142 respectively. The mixing and conveying waterway 41 is used to mix detergent and water, and then deliver them to the laundry treatment apparatus.

The second chamber is a detergent storage device 42. The detergent storage device 42 is disposed below the mixing and conveying waterway 41. The detergent storage device 42 is connected with a suction pipe 141.

When water is fed through the water inlet 131, the flexible component 2 is pressed to move toward the liquid suction chamber 12, and the laundry treatment agent is discharged into the detergent conveying waterway. Meanwhile, the pressure relief part 132 is opened to connect the accommodating chamber 11 with the pressure relief waterway 412, and the water flows through the pressure relief waterway 412 to drive the laundry treatment agent to dispense into the laundry treatment apparatus.

In the present application, the pressure relief part 132 is communicated with the mixing and conveying waterway, so that the water can flush the mixing and conveying waterway 41 after dispensing the detergent is complete. Thereby it is avoided that the dispensing pipeline is blocked due to residual detergent in the dispensing pipeline, increasing the service life of the dispensing box 4; and it is also avoided to damage on laundry due to insufficient mixing of the detergent and the water flow.

Specifically, one end of the mixing and conveying waterway 41 is connected with the pressure relief part 132 and the dispensing pipe 142 respectively, and the other end of the mixing and conveying waterway 41 is provided with a dispensing port 43 for dispensing a mixture of the laundry treatment agent and water into the laundry treatment apparatus of the washing machine.

In addition, the mixing and conveying waterway 41 comprises a detergent conveying waterway 411 and a pressure relief waterway 412. The detergent conveying waterway 411 is connected with the liquid suction chamber 12 through the dispensing pipe 142.

One end of the pressure relief waterway 412 is connected with the detergent conveying waterway 411 and the accommodating chamber 11 respectively, and the other end of the pressure relief waterway 412 is connected with the dispensing port 43. The pressure relief waterway 412 is connected with the accommodating chamber 11 through the pressure relief part 132.

Water flows into the accommodating chamber 11 of the automatic dispensing device through the water inlet 131, and presses the flexible component 2 to move toward the liquid suction chamber 12, so the laundry treatment agent is discharged into the detergent conveying waterway 411, and the accommodating chamber 11 is connected with the pressure relief waterway 412. The water flow can flush the laundry treatment agent into the laundry treatment apparatus through the pressure relief waterway 412.

A pressure relief port is provided at one end of the dispensing box 4, and there is a distance between the pressure relief port and the side wall of the pressure relief waterway 412. The inner diameter of the mixing and conveying waterway 41 is greater than the inner diameter of the pressure relief part 132.

The pressure relief part 132 is inserted into the dispensing box 4 through the pressure relief port. Specifically, a port of the pressure relief part 132 is inserted into a junction between the detergent conveying waterway 411 and the pressure relief waterway 412. Preferably, the port of the pressure relief part 132 is configured to exceed the junction between the detergent conveying waterway 411 and the pressure relief waterway 412.

In the present application, the detergent conveying waterway 411 is connected with the pressure relief waterway 412, so that water can flush the pressure relief waterway 412 and the detergent conveying waterway 411 after dispensing the laundry treatment agent is complete. Thereby, it is avoided that the dispensing pipeline is blocked due to residual detergent in the dispensing pipeline, increasing the service life of the dispensing box 4; and it is also avoided to damage on laundry due to insufficient mixing of the detergent and the water flow.

Furthermore, the detergent storage device 42 is connected with the automatic dispensing device through the suction pipe 141.

In one embodiment, the detergent storage device 42 is integrated with the dispensing box 4, and the detergent storage device 42 is fixedly disposed inside the dispensing box 4.

In another embodiment, the detergent storage device 42 is disposed inside the delivery box 4 in a drawable manner.

In a solution of the present application, the detergent storage device 42 is disposed inside the delivery box 4 in a drawable manner. Specifically, a feeding port 44 is provided on one side of the dispending box 4, and the laundry treatment agent is fed into the detergent storage device 42 through the feeding port 44.

It should be noted that the automatic dispensing device of the present application can be equipped with multiple detergent storage devices 42 for different laundry treatment agents. The liquid storage chambers of the detergent storage devices 42 is used to store different types of laundry treatment agents, and the water is controlled to flow in the corresponding detergent storage device 42 at the corresponding time to meet the dispensing requirements of different types of laundry treatment agents. Therefore, by the automatic dispensing device of the present application, there is no residue in dispensing different detergents and care agents, and it is avoided the problem of mutual contamination between different detergents and care agents, thereby effectively improving the washing effect of laundry.

The above description is only a preferred embodiment of the present application, and does not limit the present application. Although the present application has disclosed preferred embodiments, it is not intended to limit the present application. Without departing from the scope of the technical solution of the present application, anyone in the field of this patent application can be hinted to make some changes or modifications as equivalent embodiments by the above technical content. Any simple modification, equivalent change and modification made to the above embodiments according to the substantive content of the present application still belong to the scope of the solution of the present application.