CN111560751A - Drain valve and washing machine - Google Patents

Abstract

The invention provides a drain valve and a washing machine, belongs to the technical field of washing machines, and aims to solve the problems that thread scraps in washing water are wound on a driving device positioned on the drain valve to cause the failure of the driving device and the blockage of the drain valve; the valve body comprises a water inlet positioned on the top surface of the valve body and a water outlet positioned on the side surface of the valve body; the valve core comprises a diversion trench and a sealing surface, when the drain valve is in an open state, one end of the diversion trench extends to the water inlet, and the other end of the diversion trench extends to the water outlet; and rotating the valve core, wherein the sealing surface seals the water inlet, and the drain valve is in a closed state. According to the drain valve and the washing machine provided by the invention, the washing water flows in the guide groove in an oriented manner, so that the phenomena that the thread scraps in the washing water are wound on the rotating shaft to cause the driving device to break down and block the drain valve can be avoided, and the working reliability of the drain valve is improved.

Description

Drain valve and washing machine

technical field

The invention belongs to the technical field of washing machines, and in particular relates to a drain valve and a washing machine.

Background technique

The washing machine includes an inner tub and an outer tub, the inner tub is used to hold the clothes to be washed; the outer tub is used to hold the washing water, and the washing water can flow between the inner tub and the outer tub; The drain port is communicated with a drain valve, and the washing water is discharged to the outside of the washing machine through the drain valve.

The drain valve includes a valve body, a sealing plate and a driving device connected with the sealing plate; the valve body includes a water inlet pipe and a water outlet pipe, and the water inlet pipe is communicated with the drainage port of the outer cylinder; the sealing plate can realize the water inlet pipe under the action of the driving device. Seal and conduct; when it is necessary to discharge the washing water of the outer cylinder to the outside of the washing machine, the driving device drives the sealing plate to move and releases the sealing of the water inlet pipe, so that the washing water can be led into the valve body, and the washing water can be discharged through the water outlet pipe .

However, the washing water contains a lot of lint, and the lint enters the valve body along with the water flow and is easily entangled on the drive device, causing the drive device to malfunction or block the drain valve, thereby reducing the reliability of the drain valve.

SUMMARY OF THE INVENTION

The embodiments of the present invention provide a drain valve and a washing machine, which prevent lint from entangling on the rotating shaft of the drive structure when discharging washing water, reduce the risk of failure of the drive device and block the drain valve, and improve the working reliability of the drain valve.

In order to achieve the above purpose, the embodiment of the present invention adopts the following technical solutions:

In a first aspect, an embodiment of the present invention provides a drain valve, which includes a valve body and a valve core rotatably connected to the valve body; the valve body includes a water inlet and a water outlet, and the water inlet is located in the valve. The water outlet is located on the side surface of the valve body; the valve core includes a diversion groove and a sealing surface, and when the drain valve is in an open state, one end of the diversion groove extends to the a water inlet, and the other end extends to the water outlet; when the valve core is rotated, the sealing surface seals the water inlet, and the drain valve is in a closed state.

In the above-mentioned drain valve, the valve core includes a main body and a rotating shaft connected with the valve body; the guiding groove is formed on one side of the main body, and the side opposite to the guiding groove is formed the sealing surface.

In the above-mentioned drain valve, the body includes a fixedly connected deflector plate and a sealing plate; the sealing plate includes a sealing portion forming the sealing surface and mounting portions located at both ends of the sealing portion; the deflector plate being fixed on the inner side wall of each of the mounting parts, the guide plate is recessed toward the sealing part to form the guide groove; the rotating shaft is located on the outer side wall of the mounting part.

In the above-mentioned drain valve, the guide groove is an arc groove.

In the above-mentioned drain valve, the drain valve includes an electric drive device connected to the rotating shaft; the electric drive device includes a motor and a coupling, and the valve body is provided with a mounting seat for fixing the motor, One end of the coupling extends into the valve body and is connected with the rotating shaft, and the other end protrudes out of the valve body and is connected with the motor.

In the above-mentioned drain valve, the valve body is a rectangular casing, which includes a top surface, a bottom surface, two oppositely arranged first side surfaces and two oppositely arranged second side surfaces; wherein, the water inlet is located at the On the top surface, the water outlet is located on the first side surface, and the electric drive device is arranged on the second side surface.

In the above-mentioned drain valve, an elastic sealing member is provided on the end surface of the water inlet facing the valve core, and the elastic sealing member is in contact with the sealing surface.

In the above-mentioned drain valve, the valve core is provided with a positioning block near the bottom of the valve body, and when the diversion groove is communicated with the water inlet and the water outlet, the positioning block is connected to the valve. The bottom of the body abuts.

In a second aspect, an embodiment of the present invention provides a washing machine, comprising a fixing bracket and the drain valve; the drain valve is installed inside the washing machine through the fixing bracket; the drain valve includes a valve body and a water inlet pipe and a water outlet pipe, the water outlet pipe is in communication with the water outlet located on the first side of the valve body, one end of the water inlet pipe is in communication with the water outlet of the washing machine, and the other end is in communication with the water outlet located on the top surface of the valve body. The water inlet is communicated; the fixing bracket is provided with a mounting hole for the water outlet pipe to be clamped, and a side surface of the valve body opposite to the water outlet pipe is attached and fixed to the fixing bracket.

In the washing machine as described above, the valve body is symmetrically provided with two positioning buckles, and the two positioning buckles are both located on the first side surface of the valve body; the fixing brackets are arranged around the installation holes to a limited extent. a positioning flange, the positioning flange forms a limiting groove which is matched with each of the positioning buckles; the positioning buckle is snapped into the limiting groove and abuts with the limiting flange.

Compared with the related art, the drain valve and the washing machine provided by the embodiments of the present invention have the following advantages;

In the drain valve and the washing machine provided by the embodiments of the present invention, the drain valve includes a valve body and a valve core located in the valve body and rotating relative to the valve body; the valve core includes a guide groove and a sealing surface, wherein, when the washing water is discharged, the guide groove One end of the valve is connected to the water inlet of the valve body, and the other end is connected to the water outlet of the valve body, so that the washing water flows in the valve body along the guide groove and is discharged to the outside of the washing machine; otherwise, when the washing water does not need to be discharged, the rotating valve core makes The sealing surface is sealed with the water inlet of the valve body, and the drain valve is in a closed state; because the valve core has a diversion groove, the washing water flowing into the valve body can flow in a direction along the diversion groove, avoiding the occurrence of lint in the washing water. The phenomenon of entanglement on the driving device due to regular movement, thereby reducing the risk of failure of the driving device and blocking the drain valve, and improving the working reliability of the drain valve.

In addition to the technical problems solved by the present invention described above, the technical features constituting the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by the drain valve and the washing machine provided by the present invention, Other technical features included in the technical solution and the beneficial effects brought about by these technical features will be described in further detail in the specific embodiments.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings that are required in the description of the embodiments of the present invention or the prior art. Obviously, the drawings in the following description It is only a part of the embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of a drain valve provided by an embodiment of the present invention;

2 is a left side view of a drain valve provided by an embodiment of the present invention;

Fig. 3 is A-A sectional view in Fig. 2;

FIG. 4 is a first structural schematic diagram of a valve core provided by an embodiment of the present invention;

5 is a second structural schematic diagram of a valve core provided by an embodiment of the present invention;

FIG. 6 is a schematic diagram of the connection between the fixing bracket and the drain valve provided by the embodiment of the present invention;

FIG. 7 is a schematic structural diagram of the fixing bracket in FIG. 6 .

Description of reference numbers:

10- valve body; 11- water inlet;

12-water outlet; 13-positioning buckle;

14-mounting seat; 15-top surface;

16- bottom surface; 17- first side surface;

18-Second side; 20-Spool;

21- body; 22- shaft;

23-Guide groove; 24-Sealing surface;

211-deflector; 212-sealing plate;

213-installation part; 214-seal part;

215-positioning block; 216-reinforcing rib plate;

30-electric drive device; 40-water inlet pipe;

50-water outlet pipe; 60-coil spring;

70- coupling; 100- drain valve;

200-fixing bracket; 210-first mounting ear;

220-Second mounting ears; 230-Base plate;

240-installation hole; 250-limiting flange;

260 - Limit slot.

Detailed ways

The bottom of the outer tub of the washing machine is provided with a drain port and a drain valve communicated with the drain port; the drain valve includes a driving device, a valve body and a valve core located in the valve body, wherein the driving device is installed on the outer wall of the valve body and is connected with the valve core. Connected by a rotating shaft; the valve core can be rotated in the valve body under the drive of the driving device; when the washing water in the outer cylinder needs to be discharged to the outside of the washing machine, the valve core needs to release the sealing of the water inlet of the valve body, and the water containing lint Washing water can enter the valve body, and the water flow collides with the inner wall of the valve body, causing the lint to move irregularly in the valve body. Some lint can be wrapped around the rotating shaft, causing the drive device to stop and block the drain valve, thereby reducing the working reliability of the drain valve. .

In order to solve the above problems, in the drain valve and the washing machine provided in the embodiment of the present invention, the valve core of the drain valve includes a diversion groove and a sealing surface. When the washing water needs to be discharged, one end of the diversion groove is communicated with the water inlet of the valve body, and the other One end is connected with the water outlet of the valve body, so that the washing water flows directionally in the valve body along the diversion groove, which can avoid the phenomenon that the wire scraps are wrapped around the rotating shaft and cause the drive device to stop and block the drain valve, and improve the working reliability of the drain valve. .

In order to make the above objects, features and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

As shown in FIG. 1 to FIG. 3 , the drain valve 100 provided by the embodiment of the present invention includes a valve body 10 and a valve core 20 . The valve core 20 is arranged in the valve body 10 and is rotatable relative to the valve body 10 ; wherein the valve body 10 includes The water inlet 11 and the water outlet 12, the water inlet 11 is located on the top surface 15 of the valve body 10 and communicated with the drain port of the washing machine, and is used to lead the washing water into the valve body 10; the water outlet 12 is located on the side of the valve body 10 and The washing water in the valve body 10 is discharged out of the washing machine.

The valve core 20 includes a sealing surface, and the water inlet 11 can be sealed by the sealing surface, so that the drain valve 100 is in a closed state; the valve core 20 also includes a guide groove, and the guide groove can be located on the back side of the sealing surface; When washing water, rotating the valve core 20 can make one end of the guide groove extend to the water inlet 11, and the other end of the guide groove extends to the water outlet 12, so that the washing water entering the valve body 10 through the water inlet 11 can be guided along the guide. The launder 23 flows directionally and discharges to the outside of the washing machine.

Exemplarily, the valve body 10 may be a rectangular housing and form a accommodating cavity inside, the valve body 10 includes a top surface 15, a bottom surface 16, two first side surfaces 17 and two second side surfaces 18; The top surface 15 is arranged opposite to each other, and the two oppositely arranged first side surfaces 17 and the two oppositely arranged second side surfaces 18 are located between the bottom surface 16 and the top surface 15 . The water inlet 11 of the drain valve 100 is located on the top surface 15 , and the water outlet 12 of the drain valve 100 is located on the first side 17 or the second side 18 . In this embodiment, the water outlet 12 can be arranged on the first side 17 .

As shown in FIG. 4 , the valve core 20 is located in the accommodating cavity of the valve body 10 and is rotatably connected to the inner wall of the valve body 10 ; the valve core 20 includes a body 21 , and the body 21 is provided with a rotating shaft 22 toward the second side 18 , and the rotating shaft 22 The end close to the body 21 is fixedly connected with the body 21, and the end of the shaft 22 away from the body 21 is hinged on the valve body 10; the shaft 22 drives the body 21 to rotate in the valve body 10 under the action of the external driving force, and the valve core 20 rotates. The axis of rotation is perpendicular to the second side surface 18 . In addition, the two ends of the main body 21 can be respectively provided with rotating shafts 22 to improve the rotational stability of the valve core 20 in the valve body 10 . A support arm is provided, one end of the support arm is perpendicular to the bottom of the valve body 10 , and the other end is connected with a rotating shaft 22 , and the rotating shaft 22 can rotate relative to the support arm.

The body 21 can be a sealing block, and the body 21 is provided with a diversion groove 23 and a sealing surface 24, and the diversion groove 23 and the sealing surface 24 can be arranged oppositely; The water inlet 11 is sealed; the two ends of the guide groove 23 can extend to the water inlet 11 and the water outlet 12 respectively, and form a directional guide channel. For example, the sealing block forming the body 21 can be a partial sphere, the sealing block can be a 1/4 sphere, the arc surface of the partial sphere is the sealing surface 24 , and the side of the sphere away from the arc surface is cut off to form the guide groove 23 .

When the valve core 20 is in a horizontal state, the sealing surface 24 faces the top surface 15 and seals the water inlet 11 and keeps the drain valve 100 in a closed state; at this time, when the valve core 20 is rotated counterclockwise for a certain angle, the guide groove on the body 21 23 is located between the water inlet 11 and the water outlet 12, that is, one end of the diversion groove 23 can extend to the water inlet 11, and the other end extends to the water outlet 12, and the body 21 is kept close to the end faces of the water inlet 11 and the water outlet 12. There is a certain gap to avoid interference between the main body 21 and the valve body 10 during rotation. This gap does not affect the washing water flowing into the guide groove 23 from the water inlet 11 and discharged to the outside of the washing machine through the guide groove 23 and the water outlet 12. The directional flow of the washing water inside the valve body 10 is realized.

In the drain valve 100 provided in this embodiment, a valve core 20 that rotates relative to the valve body 10 is provided inside the valve body 10 , and one side of the valve core 20 is provided with a guide groove 23 , and the other side is provided with a valve that can seal the water inlet 11 . Sealing surface 24; when the washing water needs to be discharged to the outside of the washing machine, the valve core 20 can be rotated and one end of the diversion groove 23 is communicated with the water inlet 11, and the other end is communicated with the water outlet 12, so that the washing water is fixed in the diversion groove 23. It can prevent the lint in the washing water from moving irregularly in the valve body 10 and entangled on the rotating shaft 22, causing the failure of the driving device and the phenomenon of blocking the drain valve 100, thereby improving the work of the drain valve 100. reliability.

As shown in FIG. 5 , the valve core 20 provided in this embodiment includes a baffle plate 211 and a sealing plate 212, and the baffle plate 211 and the sealing plate 212 are connected together; wherein, the sealing plate 212 is in a U-shape as a whole, and the sealing plate 212 It includes two mounting portions 213 disposed opposite to each other and a sealing portion 214 located between the two mounting portions 213 . The sealing portion 214 may be a flat plate or an arc-shaped plate, as long as the sealing portion 214 can seal the water inlet 11 . The side of the guide plate 211 facing the sealing portion 214 is recessed to form a guide groove 23 . The edge portion of the guide plate 211 is attached and fixed to the inner side wall of the mounting portion 213 , and the side of the guide plate 211 facing the sealing portion 214 is connected to the inner wall of the mounting portion 213 . A connecting rib is arranged between the sealing parts 214 to enhance the structural strength of the air guide plate 211 and the sealing plate 212 .

Further, the diversion groove 23 can be an arc-shaped groove. For example, if the centerline of the water inlet 11 and the centerline of the water outlet 12 form an included angle of 90°, the arc of the arc-shaped groove can also be a 1/4 arc, The arc-shaped groove is selected for the guide groove 23, so that the washing water can flow smoothly in the guide groove 23 to prevent the impact force between the washing water and the guide groove 23 from being too large due to the excessive fluctuation of the guide groove 23. Make the water flow out of the guide groove 23 . The deflector 211 and the sealing plate 212 can be manufactured separately and connected together, or the deflector 211 and the sealing plate 212 can be made integrally. In this preferred embodiment, the deflector 211 and the sealing plate 212 are designed as an integral structure, such as an integral structure formed by an injection molding process, to enhance the connection strength of the deflector 211 and the sealing plate 212 .

In addition, the rotating shaft 22 of the valve core 20 is located on the side of the mounting portion 213 facing the valve body 10 , that is, the rotating shaft 22 and the deflector 211 are respectively connected to both sides of the mounting portion 213 , and the end of the rotating shaft 22 away from the mounting portion 213 is connected to the driving device , so as to drive the valve core 20 to rotate in the valve body 10 , thereby switching the working state of the drain valve 100 .

As shown in FIG. 6 and referring to FIG. 1 , the driving device provided in this embodiment may be a manual driving device or an electric driving device 30 , and an electric driving device 30 may be preferably used to realize automatic control of the drain valve 100 . The electric drive device 30 includes a motor and a coupling 70. One end of the coupling 70 is connected to the rotating shaft 22, and the other end of the coupling 70 is connected to the output shaft of the motor, so that the spool 20 can be driven to face each other through the forward and reverse rotation of the motor. The valve body 10 is rotated and reset.

Exemplarily, the valve body 10 includes two oppositely arranged first side surfaces 17 and two second side surfaces 18 , the water outlet 12 is located on any one of the first side surfaces 17 , and the motor can be mounted on the second side surfaces 18 . The motor is detachably mounted on the second side 18 , the second side 18 is provided with a mounting seat 14 for mounting the motor, and the motor is detachably mounted on the mounting seat 14 . In order to meet the lightweight requirements of the washing machine, the mounting base 14 includes four bosses arranged on the second side 18, and the four bosses can be diagonally distributed on the second side 18; each boss is provided with a card slot , the motor includes a base, the base is provided with a clamping block matched with the clamping slot, the motor can be clamped in the clamping groove of the boss through the clamping block, so that the motor can be detachably connected to the valve body 10; for the motor and the valve body 10 The detachable connection method of the valve is not limited to the above-mentioned clamping method, and the motor can also be installed on the valve body 10 by bolting.

Both ends of the coupling 70 can be connected with the output shaft of the motor and the rotating shaft 22 of the valve core 20 in a keyway manner. In order to prevent the vibration generated during the operation of the motor from being transmitted to the valve body 10, the sealing of the valve core 20 to the water inlet 11 is reduced. In terms of performance and the diversion effect of the diversion groove 23 , an elastic buffer member is also provided between the motor and the second side surface 18 of the valve body 10 , and the elastic buffer member includes but is not limited to the coil spring 60 .

Further, in order to improve the sealing performance of the valve core 20 to the water inlet 11 and prevent the washing machine from leaking washing water into the inside of the valve body 10 during the washing process to affect the washing effect; in this embodiment, the water inlet 11 faces the end face of the valve core 20 The upper sleeve is also provided with an elastic seal. When the sealing surface 24 of the valve core 20 is opposite to the water inlet 11 and the water inlet 11 is sealed, the elastic seal is in full contact with the sealing surface 24, and is closely attached to the sealing surface 24 under the action of its self-examination elastic force, enhancing the The sealing effect between the water inlet 11 and the sealing surface 24; the above-mentioned elastic seals include but are not limited to rubber sealing rings, such as O-rings.

As shown in FIG. 5 , in this embodiment, the valve core 20 further includes a positioning block 215 , when the two ends of the diversion groove 23 are connected with the water inlet 11 and the water outlet 12 of the valve body 10 respectively, the positioning block 215 abuts on the The bottom of the valve body 10, that is, when the valve core 20 is rotated, when the positioning block 215 on the valve core 20 is in contact with the bottom of the valve body 10, one end of the guide groove 23 is opposite to the water inlet 11, which can guide the washing water to the guide Slot 23, the other end of the guide groove 23 can be opposite to the water inlet 11, and the lower edge of the notch of the guide groove 23 is flush with the lower edge of the water outlet 12, or the lower edge of the notch of the guide groove 23 is slightly higher than The lower edge of the water outlet 12 enables the water in the guide groove 23 to flow through the water outlet 12 and be discharged out of the washing machine.

It can be understood that the positioning block 215 can be installed between the baffle 211 and the sealing part 214 ; for example, the positioning block 215 can be embedded on the reinforcing rib plate 216 between the baffle 211 and the sealing part 214 . The positioning block 215 can be made of a material with certain elastic properties, which can not only provide positioning for the valve core 20, but also provide effective support and buffering, so as to keep the valve core 20 stable while discharging the washing water, and also reduce the force on the rotating shaft 22. , to prevent the rotating shaft 22 from bouncing during long-term use.

As shown in FIG. 6 and FIG. 7 , an embodiment of the present invention also provides a washing machine, which includes an inner tub and an outer tub communicated with the inner tub, the inner tub is used as a washing tub, and the outer tub is used as a water container; the bottom of the outer tub is provided with There is a drain port, and the drain valve 100 communicates with the drain port; when the washing water needs to be drained, the washing water is drained out of the washing machine through the drain valve 100 .

Exemplarily, a fixing bracket 200 is further provided between the shell of the washing machine and the outer tub, and the fixing bracket 200 is used to install the drain valve 100 on the bottom of the shell. The drain valve 100 includes a valve body 10 and a valve core 20 located in the valve body 10; the valve body 10 is a rectangular casing, and the rectangular casing includes a top surface 15, a bottom surface 16 opposite to the top surface 15, and two first side surfaces 17, Two second side surfaces 18; wherein, the top surface 15 is provided with a water inlet 11, and the water inlet 11 communicates with the water outlet at the bottom of the outer cylinder through the water inlet pipe 40; the first side surface 17 is provided with a water outlet 12, and the water outlet 12 A water outlet pipe 50 is provided to discharge the washing water to the outside of the washing machine.

The valve core 20 includes a guide groove 23 and a sealing surface 24. When the washing water is discharged, the two ends of the guide groove 23 are respectively opposite to the water inlet 11 and the water outlet 12, so that the washing water can flow directionally along the guide groove 23, and the washing water It flows out of the washing machine through the water outlet 12 and the water outlet pipe 50 ; when the washing water is stopped, the valve core 20 is rotated, and the sealing surface 24 seals the water inlet 11 .

The fixing bracket 200 has an L-shaped structure, and includes two oppositely arranged first mounting ears 210 , second mounting ears 220 and a bottom plate 230 connecting the first mounting ears 210 and the second mounting ears 220 ; wherein the bottom plate 230 is fitted and installed At the bottom of the casing of the washing machine, the first mounting ears 210 and the second mounting ears 220 are fitted and mounted on the two first side surfaces 17 of the valve body 10 respectively; the first side surface 17 of the valve body 10 is provided with a water outlet pipe 50, Using the water outlet pipe 50 as a plug-in portion, the water outlet pipe 50 is inserted into the fixing bracket 200 .

For example, the first installation ear 210 is provided with an installation hole 240 that is matched with the water outlet pipe 50 , the water outlet pipe 50 is inserted into the installation hole 240 of the first installation ear 210 , and the first installation ear 210 is kept in contact with the first side surface 17 . The second installation ear 220 is attached and fixed to the first side 17 opposite to the water outlet pipe 50, and the second installation ear 220 can be attached to the outer side wall of this first side 17; or this first side 17 is set toward the fixing bracket 200 There is an extension part, the second installation ear 220 can be fixed on the extension part, and the extension part and the second installation ear 220 are fixed by screws.

Further, in order to improve the fixing effect between the fixing bracket 200 and the valve body 10 , a plurality of positioning buckles 13 are provided on the first side 17 where the water outlet pipe 50 is located, and the plurality of positioning buckles 13 are equally spaced along the circumferential direction of the water outlet pipe 50 . Distribution; for example, two positioning buckles 13 are symmetrically arranged on the first side surface 17 . A limiting flange 250 is arranged around the first mounting ear 210 along the circumferential direction of the mounting hole 240; the limiting flange 250 is provided with a notch, and a portion of the area is removed along the direction away from the center of the mounting hole 240 to form a limiting groove 260. The limiting groove 260 is arranged in cooperation with the positioning buckle 13 . After the water outlet pipe 50 is inserted into the installation hole 240, the first installation ear 210 is attached to the first side surface 17, and the positioning clip 13 is embedded in the limit groove 260 and abuts with the limit flange 250; at the same time, the positioning clip The tabs of the buckle 13 are crimped on the first installation ears 210; thus, the fixing effect of the first installation ears 210 and the positioning buckles 13 is enhanced; at the same time, in this embodiment, the first installation ears 210 and the water outlet pipe 50 are inserted and installed together. For fixing, the second mounting ears 220 are screwed together with one side surface of the valve body 10 , which can improve the fixing efficiency of the fixing bracket 200 and the drain valve 100 .

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A drain valve, characterized in that it comprises a valve body and a valve core rotatably connected to the valve body; The valve body includes a water inlet and a water outlet, the water inlet is located on the top surface of the valve body, and the water outlet is located on the side surface of the valve body; The valve core includes a guide groove and a sealing surface. When the drain valve is in an open state, one end of the guide groove extends to the water inlet, and the other end extends to the water outlet; when the valve core is rotated, the The sealing surface seals the water inlet, and the drain valve is in a closed state. 2. The drain valve according to claim 1, wherein the valve core comprises a body and a rotating shaft connected with the valve body; The guide groove is formed on one side of the main body, and the sealing surface is formed on the side opposite to the guide groove. 3. The drain valve according to claim 2, wherein the body comprises a fixedly connected deflector plate and a sealing plate; The sealing plate includes a sealing portion forming the sealing surface and mounting portions located at both ends of the sealing portion; The guide plate is fixed on the inner side wall of each of the mounting parts, and the guide plate is recessed toward the sealing part to form the guide groove; The rotating shaft is located on the outer side wall of the mounting portion. 4. The drain valve according to claim 3, wherein the guide groove is an arc groove. 5. The drain valve according to claim 2, wherein the drain valve comprises an electric drive device connected with the rotating shaft; The electric drive device includes a motor and a coupling, the valve body is provided with a mounting seat for fixing the motor, one end of the coupling extends into the valve body and is connected with the rotating shaft, and the other end protrudes The valve body is connected with the motor. 6 . The drain valve according to claim 5 , wherein the valve body is a rectangular casing comprising a top surface, a bottom surface, two oppositely arranged first side surfaces and two oppositely arranged second side surfaces; 6 . Wherein, the water inlet is located on the top surface, the water outlet is located on the first side surface, and the electric drive device is arranged on the second side surface. 7 . The drain valve according to claim 1 , wherein an elastic sealing member is provided on the end surface of the water inlet facing the valve core, and the elastic sealing member is in contact with the sealing surface. 8 . 8 . The drain valve according to claim 1 , wherein a positioning block is provided on the bottom of the valve core close to the valve body, and when the diversion groove is communicated with the water inlet and the water outlet, The positioning block is in contact with the bottom of the valve body. 9. A washing machine, characterized by comprising a fixing bracket and the drain valve according to any one of claims 1 to 8; The drain valve is installed inside the washing machine through the fixing bracket, and the drain valve includes a valve body, a water inlet pipe and a water outlet pipe; The water outlet pipe is communicated with the water outlet located on the first side of the valve body, one end of the water inlet pipe is communicated with the water outlet of the washing machine, and the other end is communicated with the water inlet located on the top surface of the valve body connected; The fixing bracket is provided with a mounting hole for the water outlet pipe to be clamped, and a side surface of the valve body opposite to the water outlet pipe is attached and fixed to the fixing bracket. 10 . The washing machine according to claim 9 , wherein the valve body is symmetrically provided with two positioning buckles, and the two positioning buckles are both located on the first side surface of the valve body; 10 . The fixing bracket is provided with a limit flange around the installation hole, and the limit flange forms a limit groove that is snap-fitted with each of the positioning; The positioning buckle is snapped into the limiting groove and abuts with the limiting flange.

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