CN211596119U

CN211596119U - Drain valve and washing machine using same

Info

Publication number: CN211596119U
Application number: CN202020102171.6U
Authority: CN
Inventors: 王李祥; 张芹; 秦耀洪
Original assignee: Jiangsu Leili Motor Co Ltd
Current assignee: Jiangsu Leili Motor Co Ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-09-29
Anticipated expiration: 2030-01-16

Abstract

The utility model discloses a drain valve and use washing machine of this drain valve, include: the valve pipe assembly, and the drainage pump and the drainage control structure matched and connected with the valve pipe assembly. The valve pipe assembly comprises a valve body, a water inlet pipe and a water outlet pipe which are arranged on the valve body, and a cavity which is arranged in the valve body and is suitable for being communicated with the water inlet pipe and the water outlet pipe; a waterway channel communicated with the water inlet pipe and the water outlet pipe is arranged in the cavity; the side wall of the valve body is also provided with a first connecting port and a second connecting port which are respectively communicated with the chamber; the water outlet pipe is positioned on the side wall of the valve body, which is correspondingly provided with the first connecting port; the drainage pump is matched and connected with the first connecting port so as to be suitable for draining the water in the cavity into the water outlet pipe; the drainage control structure is matched and connected with the second connecting port so as to be suitable for plugging the waterway channel. The utility model discloses a drain valve and use washing machine of this drain valve can improve the suitability to different drainage environment.

Description

Drain valve and washing machine using same

Technical Field

The utility model relates to a washing machine field, concretely relates to drain valve and use washing machine of this drain valve.

Background

The water discharge valve is used for a washing machine and is used for stopping and discharging washing water. The drain valves generally used in the prior art are classified into two types of upper drain and lower drain. The washing machine with the lower drainage mode can drain the washing water through gravity, and the water outlet is lower than the washing machine and is suitable for the floor drain type drainage mode. However, if the water outlet is higher in the home and is not a floor drain attached to the ground, the water of the washing machine cannot be discharged or cannot be discharged completely.

The upper drainage is used for the washing machine that the drainage pipe is arranged high and can not drain water by the gravity of the water, and in this case, the drainage pipe is arranged higher than the washing machine. If the drain pipe is erected to be short, the washing water in the washing machine can directly flow off through the drain pump, and the washing water cannot be stored.

In summary, it is difficult to use the upper and lower drainage type washing machines in common in the same drainage environment. Under the condition, when a household purchases the washing machine, the drainage mode is not concerned, the lower drainage washing machine is possibly purchased, and the purchased washing machine cannot be directly installed when the household is found not to be a floor drain; or the floor drain outlet is higher than the ground, so that part of residual water of the washing machine cannot be smoothly discharged, and the pollution of the washing machine and clothes is caused.

In addition, the clothing washs back washing aquatic end of a thread and the flocculus is more, can glue the valve plug head at the drain valve sometimes under following the rivers, if the rivers then can't discharge rubbish such as flocculus, the drain valve is closed back rubbish and can be blocked up and lead to sealed badly at the valve plug head.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drain valve to solve the technical problem who improves the suitability of drain valve to different drainage environment.

The utility model aims at providing a washing machine to solve the technical problem who improves the suitability of drain valve to different drainage environment.

The utility model discloses a drain valve realizes like this:

a drain valve comprising:

the valve pipe assembly comprises a valve body, a water inlet pipe and a water outlet pipe which are arranged on the valve body, and a cavity which is arranged inside the valve body and is suitable for being communicated with the water inlet pipe and the water outlet pipe; a waterway channel communicated with the water inlet pipe and the water outlet pipe is arranged in the cavity; the side wall of the valve body is also provided with a first connecting port and a second connecting port which are respectively communicated with the chamber; the water outlet pipe is positioned on the side wall of the valve body, which is correspondingly provided with the first connecting port;

the drainage pump is matched and connected with the first connecting port to be suitable for discharging water in the cavity into a water outlet pipe;

and the drainage control structure is matched and connected with the second connecting port so as to be suitable for plugging the waterway channel.

In a preferred embodiment of the present invention, the chambers include a first chamber communicated with the water inlet pipe, a second chamber communicated with the water outlet pipe, and a separating rib plate disposed between the first chamber and the second chamber for separating the two chambers; wherein

The first connecting port and the second connecting port are both arranged on the side wall of the valve body corresponding to the second chamber; and

the waterway channel comprises at least one water passing opening arranged on the separating rib plate.

In a preferred embodiment of the present invention, the drainage control structure comprises a valve plug adapted to block the waterway channel, and a power structure connected to the valve plug and adapted to drive the valve plug to perform a reciprocating movement relative to the waterway channel; wherein

The end face of the separating rib plate facing the valve plug is vertically distributed with the motion trail of the valve plug;

when the waterway channel is blocked by the valve plug, water in the cavity cannot be discharged into the water outlet pipe; while

When the waterway channel is not blocked by the valve plug and the drainage pump is started, water in the cavity is drained to the water outlet pipe through the drainage pump.

In a preferred embodiment of the present invention, the second connection port includes a connection port adapted to pass through the valve plug, a plurality of connection buckles arranged at intervals around the circumference of the connection port, and connection end surfaces arranged on the connection buckles; and

the connecting end face is parallel to the end face of the separating rib plate facing the valve plug;

the shell part of the power structure is provided with a clamping part which is suitable for being connected with the connecting buckle in a matching mode, and a clamping end face which is arranged on the clamping part and is suitable for being matched with the connecting end face.

In the preferred embodiment of the present invention, the valve plug is made of a material suitable for compression deformation so that the valve plug blocks the end of the rib plate is compressed and deformed toward the partition rib plate during the water passage.

In a preferred embodiment of the present invention, a depth from the connection end surface of the second connection port to the end surface of the partition rib plate facing the valve plug is defined as a;

defining the free length from the clamping end face of the shell part of the dynamic structure to the end part of the valve plug facing the separation rib plate as b; then

b>a。

In a preferred embodiment of the present invention, a pump housing adapted to be coupled to the drain pump is formed at a portion of the valve body corresponding to the first connection port;

the pump housing having a pump cavity communicating with the second chamber for receiving the impeller of the drain pump, and a side wall of the pump housing facing the second chamber being provided with an internal water inlet communicating the pump cavity and the second chamber; and

the water outlet pipe is communicated with the pump cavity.

In a preferred embodiment of the present invention, the casing of the drain pump has a positioning surface adapted to cooperate with the first connection port, and the first connection port has an engaging surface adapted to cooperate with the positioning surface; and

the side end of the positioning surface facing the binding surface is provided with a plurality of positioning ribs at intervals, and the positioning ribs are suitable for abutting against the circumferential side wall of the valve body corresponding to the first connecting port.

In a preferred embodiment of the present invention, an included angle a is formed between an axis of an impeller of the drain pump and a motion track of the valve plug;

the size of A is 50-120 degrees.

The utility model discloses a washing machine realizes like this:

a washing machine comprising: the drain valve.

The utility model has the advantages that: the utility model discloses a drain valve and use washing machine of this drain valve all establish ties drain pump and drainage control structure in the waterway between inlet tube and outlet pipe, through the break-make of drainage control structure control waterway, when washing machine is in the washing state, cut off waterway through drainage control structure, so, no matter the height that the drain pipe of washing machine service environment erect still low, the outside problem that flows of washing water all can not appear. When the washing machine is in a drainage state, the drainage control structure controls the valve plug to enable the water channel to be smooth, so that washing water can be drained to the water outlet pipe through the drainage pump, and the washing water can be drained completely without considering the height of the drainage pipe in the use environment of the washing machine. To sum up, adopt the utility model discloses a washing machine of drain valve can be applicable to simultaneously in the environment of last drainage or lower drainage, under any installation service environment, can guarantee washing machine's stagnant water and drainage function normal promptly. And the utility model discloses a power supply that the drain valve carries out the drainage is not the dead weight of washing water but the drain pump, so the drainage rate is fast, and is efficient, and the velocity of flow of water is fast, can prevent foreign matter such as flocculus from gluing on the valve plug surface, and then avoids appearing the problem that the drainage control structure cuts off waterway inefficacy and improves the stability that the drain pump used.

Further, the utility model discloses concentrate integrative the installing on valve pipe assembly with drainage control structure and drain pump for the whole space of holistic drain valve is little, and is with low costs.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic view of the entire structure of the drain valve of the present invention;

fig. 2 is a schematic view of the internal structure of the valve body of the present invention;

fig. 3 is a schematic view of the drain valve of the present invention in a drainage state;

fig. 4 is a schematic view of the drain valve of the present invention in a water stop state;

fig. 5 is a schematic structural view of a drainage pump correspondingly used in the drainage valve of the present invention;

fig. 6 is a schematic structural view of a first connection port of the drain valve according to the present invention;

fig. 7 is a sectional structure view of the drain valve according to the present invention in a state where the drain pump is connected to the first connection port;

fig. 8 is a schematic view of a first view angle of a second connection port of the drain valve according to the present invention;

fig. 9 is a schematic view of a second view angle of a second connection port of the drain valve according to the present invention;

fig. 10 is a schematic view of a drain control structure correspondingly used in the drain valve of the present invention;

fig. 11 is a structural view of the drain valve according to the present invention in a state where the drain control structure is fitted to the second connection port;

fig. 12 is a representation of the depth a from the connection end face of the second connection port of the drain valve of the present invention to the end face of the partition rib plate facing the valve plug;

fig. 13 is a representation of the free length b from the clamping end face of the housing portion of the dynamic structure of the drain valve of the present invention to the end of the valve plug facing the partition rib;

fig. 14 is a schematic view of the drain valve according to the present invention, in which the water outlet of the water outlet pipe is oriented in different directions relative to the valve body.

In the figure: the water pump comprises a valve body 1, a water inlet pipe 2, a water outlet pipe 3, a first connecting port 5, a second connecting port 6, a draining pump 7, a first cavity 8, a second cavity 9, a separating rib plate 11, a water passing port 12, a valve plug 13, a power structure 15, a connecting port 16, a connecting buckle 17, a connecting end surface 18, a clamping portion 19, a clamping end surface 20, a pump shell 21, an internal water inlet 22, a pump cavity 23, a positioning surface 25, a binding surface 26, a positioning rib 27 and an impeller 28.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

Example 1:

as shown in fig. 1 to 14, the present embodiment provides a water discharge valve including: a valve pipe assembly, and a drain pump 7 and a drain control structure coupled to the valve pipe assembly.

Specifically, the valve pipe assembly comprises a valve body 1, a water inlet pipe 2 and a water outlet pipe 3 which are arranged on the valve body 1, and a cavity which is arranged inside the valve body 1 and is suitable for being communicated with the water inlet pipe 2 and the water outlet pipe 3; a waterway channel communicated with the water inlet pipe 2 and the water outlet pipe 3 is arranged in the cavity; the side wall of the valve body 1 is also provided with a first connecting port 5 and a second connecting port 6 which are respectively communicated with the chamber; wherein the water outlet pipe 3 is positioned on the side wall of the valve body 1 which is correspondingly provided with the first connecting port 5. One end of the water inlet pipe 2 is directly or indirectly communicated with the washing container, and the other end thereof is communicated with the chamber. One end of the water outlet pipe 3 is communicated with the chamber, and the other end thereof discharges the washing water to the outside of the washing container through a connection hose.

The draining pump 7 is suitable for being matched and connected with the first connecting port 5 so as to be suitable for discharging the water in the cavity into the water outlet pipe 3; the drainage control structure is matched and connected with the second connecting port 6 to be suitable for plugging the waterway channel.

The chambers related to the embodiment comprise a first chamber 8 communicated with the water inlet pipe 2, a second chamber 9 communicated with the water outlet pipe 3, and a separating rib plate 11 arranged between the first chamber 8 and the second chamber 9 and used for separating the two chambers; the first connection port 5 and the second connection port 6 are both disposed on the sidewall of the valve body 1 corresponding to the second chamber 9, and thus the corresponding water outlet pipe 3 is also disposed on the sidewall corresponding to the second chamber 9 to form communication with the second chamber 9. And the waterway channel includes at least one drainage port 12 provided on the partition rib plate 11. That is to say, the separation of the first chamber 8 and the second chamber 9 is formed by the separating rib plate 11, and the at least one water passing opening 12 arranged on the separating rib plate 11 forms the circulation of water flow in the first chamber 8 and the second chamber 9, so that water to be discharged in the first chamber 8 can enter the second chamber 9 through the water passing opening 12, and finally, the water is discharged through the water outlet pipe 3 arranged on the side wall of the valve body 1 corresponding to the second chamber 9. That is, when the water channel is blocked by the valve plug 13, no matter the drainage pump 7 is in the starting operation state, the water in the first chamber 8 cannot enter the second chamber 9, and cannot be discharged to the water outlet pipe 3; when the water channel is not blocked by the valve plug 13, the water in the first chamber 8 enters the second chamber 9, and when the drainage pump 7 is started to operate, the water in the chamber is discharged to the water outlet pipe 3 through the drainage pump 7.

The drain control structure of this embodiment includes a valve plug 13 adapted to close off the waterway, and a power structure 15 connected to the valve plug 13 and adapted to drive the valve plug 13 to perform a telescopic reciprocating motion with respect to the waterway.

It should be noted that, firstly, the power structure 15 may be a drainage motor structure connected to the valve plug 13 to drive the valve plug 13 to reciprocate telescopically, which is known in the art, such as the motor structure disclosed in the prior application CN209072258U of the present applicant. In addition, the driving principle of the valve plug 13 by the dynamic structure 15 can also adopt a specific structure of an electromagnetic safety regulating valve, such as but not limited to the one disclosed in the prior art with the publication number CN 2229582Y.

Secondly, to the shutoff of valve plug 13 to waterway specifically through valve plug 13 from second chamber 9 one side to separating at least one on the gusset 11 and crossing mouth of a river 12 and shutoff for the unable rethread mouth of a river 12 of water of first chamber 8 flows into in second chamber 9, just so can not discharge through outlet pipe 3. It is also to be particularly emphasized here that the valve plug 13 can simultaneously block all the water passing openings 12 provided on the partition rib 11, that is, the valve plug 13 of this embodiment ensures that water in the first chamber 8 cannot enter the second chamber 9 while blocking all the water passing openings 12. The embodiment is described by taking a case where one water passing port 12 is provided as an example in conjunction with the drawings.

Because the valve plug 13 realizes the shutoff to crossing mouth of a river 12 through the flexible reciprocating motion of straight line, the valve plug 13 specifically realizes the shutoff to crossing mouth of a river 12 through carrying out the butt with the part that corresponds crossing mouth of a river 12 circumference border on the partition gusset 11, consequently in order to improve the valve plug 13 and to crossing the tightness of mouth of a river 12 shutoff, play valve plug 13 to crossing the sealed effect of mouth of a river 12, combine the linear motion orbit of valve plug 13, the part that corresponds to crossing mouth of a river 12 circumference border on the partition gusset 11 is the vertical distribution relation towards the terminal surface of valve plug 13 with the linear motion orbit of valve plug 13, make valve plug 13 can with partition gusset 11 under the effect of dynamic structure 15 towards closely laminating between the terminal surface of second chamber 9. In consideration of convenience of the partition rib plate 11 in processing, the partition rib plate 11 of this embodiment is, for example, in a regular shape structure, for example, an end surface of the partition rib plate 11 facing the valve plug 13 is a flat end surface structure, and in such a case, since a portion of the partition rib plate 11 corresponding to the circumferential edge of the water gap 12 is vertically distributed with a linear motion trajectory of the valve plug 13, the end surface of the partition rib plate 11 facing the valve plug 13 is vertically distributed with the linear motion trajectory of the valve plug 13.

The matching between the drainage control structure and the valve body 1 is specifically as follows:

the second connection port 6 comprises a connection port 16 suitable for the valve plug 13 to pass through, a plurality of connection buckles 17 arranged at intervals around the circumference of the connection port 16, and connection end surfaces 18 arranged on the connection buckles 17; and the connecting end face 18 is parallel to the end face of the partition rib plate 11 facing the valve plug 13. The housing portion of the power structure 15 has a clamping portion 19 adapted to mate with the connecting buckle 17, and a clamping end face 20 provided on the clamping portion 19 and adapted to cooperate with the connecting end face 18. That is to say the housing part of the drive structure 15 is fixedly connected to the second connection port 6 of the valve body 1, so that the valve plug 13 can be inserted into the second chamber 9.

It should be noted that the valve plug 13 of the present embodiment is made of a material suitable for compression deformation, so that the valve plug 13 is compressed and deformed toward the end of the partition rib 11 when the valve plug 13 blocks the waterway. On the premise that the valve plug 13 has natural properties suitable for compression deformation, the depth from the connecting end surface 18 of the second connecting port 6 to the end surface of the partition rib plate 11 facing the valve plug 13 is defined as a; the free length from the clamping end surface 20 of the shell part of the dynamic structure 15 to the end part of the valve plug 13 facing the partition rib plate 11 is defined as b; and b > a, under such structure, when making valve plug 13 butt under the effect of power structure 15 on separating the terminal surface of gusset 11 towards valve plug 13, the tip that valve plug 13 and separating gusset 11 butt can be compressed and the deformation to improve valve plug 13 to the tightness of crossing water gap 12 shutoff, thereby guarantee when need not carrying out the drainage through outlet pipe 3 that the water in the first cavity 8 can't pass through water gap 12 and get into in the second cavity 9, guarantee the stagnant water effect of drain valve.

The specific coupling between the drain pump 7 and the valve body 1 is as follows:

a pump housing 21 adapted to be coupled to the drain pump 7 is formed at a portion of the valve body 1 corresponding to the portion where the first connection port 5 is provided, and the pump housing 21 is integrally formed with the valve body 1 during a process. The pump housing 21 has a pump chamber 23 communicating with the second chamber 9 to accommodate an impeller 28 of the drain pump 7, and the side wall of the pump housing 21 facing the second chamber 9 is provided with an internal water inlet 22 communicating the pump chamber 23 and the second chamber 9, so that water can flow from the second chamber 9 into the pump chamber 23 through the internal water inlet 22. The water outlet pipe 3 is communicated with the pump cavity 23, and the first connecting port 5 is communicated with the pump cavity 23, so that the impeller of the drain pump 7 can penetrate through the first connecting port 5 and then extend into the pump cavity 23.

More specifically, the casing of the drain pump 7 has a positioning surface 25 adapted to cooperate with the second connection port 6, and the first connection port 5 has an abutment surface 26 adapted to cooperate with the positioning surface 25; and a plurality of positioning ribs 27 adapted to abut against the circumferential side wall of the valve body 1 corresponding to the first connecting port 5 are provided at intervals at the side end of the positioning surface 25 facing the abutting surface 26.

When the drain pump 7 is mounted to the first connection port 5, the abutting surface 26 of the first connection port 5 abuts against the positioning surface 25 on the drain pump 7, while the impeller 28 projects into the pump chamber 23. And the positioning rib 27 is positioned on the circumferential side wall of the valve body 1 corresponding to the first connection port 5 during installation, and serves as installation positioning to prevent shaking and dislocation between the valve body 1 and the drain pump 7. When the drainage pump 7 is operated, the impeller 28 rotates, and the washing water is drained through the water outlet pipe 3. The casing of the drain pump 7 and the first connection port 5 can be directly connected by a conventional snap fastening connection or a screw fastening connection, and the case of the screw fastening connection is taken as an example in the present embodiment.

In addition, in order to further reduce the overall space of the valve tube assembly and thus the overall space of the drain valve, the axis of the impeller 28 of the drain pump 7 forms an included angle a with the motion track of the valve plug 13; the size of a is preferably 50 ° to 120 °.

In addition, it should be noted that, in the pump cavity 23 of the embodiment, in the installation state, the height of the pump cavity 23 is not higher than the height of the second cavity 9, so that the water in the second cavity 9 is discharged into the pump cavity 23, thereby being beneficial to draining the water in the cavity of the valve body 1, and preventing the residual water from breeding bacteria in the cavity and polluting clothes placed in the washing machine.

It should be noted that the direction of the water outlet, which is arranged on the side wall of the valve body 1 and is in butt joint with the water outlet pipe 3, of the present embodiment can be adjusted, please refer to fig. 14. The direction of the water outlet can be adjusted according to the installation requirement of the drainage valve, but the direction of the water outlet needs to be perpendicular to the axial direction of the impeller 28 of the drainage pump 7 so as to facilitate drainage.

The specific working principle of the water discharge valve of the embodiment is as follows:

during the stagnant water state, the drain valve does not switch on, the power structure 15 and the drain pump 7 of drainage control structure do not all switch on promptly, drainage control structure's valve plug 13 is in the state of replying this moment, valve plug 13 is hugged closely the partition gusset 11 towards the terminal surface of crossing water mouth 12 of separating gusset 11 promptly, make valve plug 13 can the shutoff cross mouth of a river 12, valve plug 13 blocks the waterway between inlet tube 2 and the outlet pipe 3, make the water of inlet tube 2 can't follow first cavity 8 and flow into second cavity 9, thereby can't discharge in the outlet pipe 3. At this moment, the washing machine using the drainage valve is in a normal washing state, the valve plug 13 of the drainage control structure realizes a water stopping function, and no water can be discharged into the water outlet pipe 3 through the drainage pump 7 in the washing state.

When the water is drained, the power structure 15 of the drainage control structure is electrified, the power structure 15 drives the valve plug 13 to shrink towards the direction of the power structure 15, so that the valve plug 13 leaves the water passing opening 12, namely, the plugging effect of the valve plug 13 on the water passing opening 12 disappears, after washing water enters the first cavity 8 through the water inlet pipe 2, the washing water can enter the second cavity 9 through the water passing opening 12 arranged on the separation rib plate 11 and finally enters the pump cavity 23, namely, the water inlet pipe 2 is communicated with the water outlet pipe 3; at the same time, the drain pump 7 is energized, and the drain pump 7 discharges the water in the pump chamber 23 through the water outlet pipe 3 by rotating the impeller 28. At this time, the washing machine using the drain valve of the present embodiment drains water normally. And, when drain pump 7 impeller 28 rotated, the central zone was in the negative pressure state, and the velocity of water flow is very fast, and the tip that valve plug 13 orientation separated gusset 11 was located this negative pressure region after valve plug 13 shrink this moment, can prevent effectively that the rubbish in the washing water from being attached to the tip that valve plug 13 orientation separated gusset 11, and the problem that the shutoff became invalid between the tip that valve plug 13 orientation separated gusset 11 and water passing mouth 12 when avoiding appearing needing stagnant water again produced.

Example 2:

this embodiment provides a washing machine using the drain valve as described in embodiment 1 on the basis of the drain valve of embodiment 1.

In this specification, the schematic representations of the terms are not necessarily referring to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A drain valve, comprising:

2. The drain valve according to claim 1, wherein the chambers comprise a first chamber communicated with the water inlet pipe, a second chamber communicated with the water outlet pipe, and a separation rib plate arranged between the first chamber and the second chamber and used for separating the two chambers; wherein

3. The drain valve according to claim 2, wherein said drain control structure includes a valve plug adapted to close said waterway, and a power structure connected to said valve plug for driving said valve plug to telescopically reciprocate relative to said waterway; wherein

4. The drain valve according to claim 3, wherein the second connection port comprises a connection port adapted for the valve plug to pass through, a plurality of connection buckles arranged at intervals around the circumference of the connection port, and connection end faces arranged on the connection buckles; and

5. The drain valve according to claim 4, wherein the valve plug is made of a material suitable for compression deformation so that the end portion of the valve plug facing the partition rib plate is compressed and deformed when the valve plug blocks the waterway channel.

6. The drain valve according to claim 5, wherein a depth from the connection end surface of the second connection port to an end surface of the partition rib plate facing the valve plug is defined as a;

b>a。

7. The drain valve according to claim 3, wherein a pump housing adapted to be fitted to the drain pump is formed at a portion of the valve body where the first connection port is provided;

the water outlet pipe is communicated with the pump cavity.

8. The drain valve of claim 7, wherein the housing of the drain pump has a locating surface adapted to engage the first connection port, and the first connection port has an abutment surface adapted to engage the locating surface; and

9. The drain valve according to any of the claims 7 or 8, wherein the axis of the impeller of the drain pump forms an angle a with the motion trajectory of the valve plug;

the size of A is 50-120 degrees.

10. A washing machine, characterized by comprising: comprising a drain valve according to any of claims 1 to 9.