CN217499711U

CN217499711U - External detergent switches input device and washing machine

Info

Publication number: CN217499711U
Application number: CN202122716534.2U
Authority: CN
Inventors: 孙冬松; 许升; 吕艳芬; 张涛; 马传荣; 刘凯
Original assignee: Haier Smart Home Co Ltd; Haier IoC Ecosystem Technologies Shanghai Co Ltd
Current assignee: Haier Smart Home Co Ltd; Haier IoC Ecosystem Technologies Shanghai Co Ltd
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-09-27
Anticipated expiration: 2031-11-08

Abstract

The utility model discloses an external detergent switching and putting device and a washing machine, which comprises a switching valve, wherein the switching valve comprises a valve body and a valve core, the side part of the valve body is provided with a plurality of liquid inlets which are arranged at intervals along the circumferential direction, and the end part of the valve body is provided with a liquid outlet which is arranged at the central position of the end part; the valve core is rotatably arranged in the valve body, the outer peripheral wall of the valve core is in rotary sealing connection with the inner peripheral wall of the valve body, and an outlet is formed in the outer wall of the valve core and is used for being communicated with the liquid inlet; the liquid outlet of the valve body is connected with the outlet of the valve core in a rotating and sealing way. The utility model discloses set up a plurality of inlets on the lateral part of valve body, set up the liquid outlet at the tip of diverter valve, the liquid outlet with be equipped with seal structure between the export of case, it is rotatable for the valve body to realize the case, improves the leakproofness when the diverter valve is put in, prevents when the case rotates between for the valve body, cause the detergent to leak, increase user experience.

Description

External detergent switches input device and washing machine

Technical Field

The utility model belongs to the washing machine field, specifically speaking relates to an external detergent switches input device and washing machine.

Background

At present, the intelligent development of laundry equipment, the functions of washing machines are more and more, and the various washing requirements of people are greatly facilitated, wherein the automatic detergent putting function does not need a user to manually put detergent, so that the user operation is saved, and therefore, the user demands the automatic detergent putting function more and more.

However, the existing automatic washing machine usually puts in various detergents, such as laundry detergent, softener, disinfectant, etc. Usually, a plurality of pump of puting in come to put in respectively, and it is more to put in the pump quantity, and the structure is complicated, and occupation space is big, with high costs to when moving, because of putting in pump quantity and causing the leakproofness not good, influence user experience.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves lies in overcoming prior art not enough, provides an external detergent switches over puts in device, including the diverter valve, the utility model discloses set up a plurality of inlets on the lateral part of valve body, set up the liquid outlet at the tip of diverter valve, the liquid outlet with be equipped with seal structure between the export of case, it is rotatable for the valve body to realize the case, simultaneously, improves the leakproofness when the diverter valve is put in, prevents at the during operation, when the case rotates between for the valve body, cause the detergent to leak, increase user experience.

Another object of the utility model is to provide a washing machine realizes the input of multiple detergent, and simple structure, leakproofness are good.

In order to solve the technical problem, the utility model adopts the technical scheme that: an external detergent switching and throwing device comprises a switching valve, the switching valve comprises,

the side part of the valve body is provided with a plurality of liquid inlets which are arranged at intervals along the circumferential direction, and the end part of the valve body is provided with liquid outlets which are arranged at the central position of the end part;

the valve core is rotatably arranged in the valve body, the outer peripheral wall of the valve core is in rotary sealing connection with the inner peripheral wall of the valve body, and an outlet is formed in the outer wall of the valve core and is used for being communicated with the liquid inlet;

the liquid outlet of the valve body is connected with the outlet of the valve core in a rotating and sealing way.

Furthermore, a matched rotary sealing structure is arranged between the liquid outlet and the outlet.

Further, the rotary seal comprises a first sealing structure which is arranged on the periphery of the outlet and protrudes towards the liquid outlet of the valve body;

preferably, the first sealing structure is an annular boss.

Furthermore, the rotary sealing structure also comprises a second sealing structure which is arranged on the inner side wall of the valve body at the periphery of the liquid outlet and is in rotary contact and sealing with the first sealing structure;

preferably, the second sealing structure is an annular groove.

Further, the valve core comprises a valve core body,

the shaft seat is used for mounting a rotating shaft;

the supporting seat extends outwards from the outer peripheral wall of the shaft seat along the radial direction of the shaft seat;

the inner periphery of the outer peripheral plate is connected with the outer periphery of the supporting seat, an inlet is formed in the outer peripheral plate and communicated with the outlet, the outer peripheral plate is used for being selectively communicated or disconnected with one of the liquid inlets when the valve core rotates, and the inlet is communicated with the outlet;

the outlet is arranged at the center of one axial end of the shaft seat and is opposite to the liquid outlet; the first sealing structure is arranged on the shaft seat at the periphery of the outlet.

Further, a liquid inlet channel which is communicated with the inlet and the outlet is arranged in the valve core;

the liquid inlet channel comprises a liquid inlet channel and a liquid outlet channel,

the first liquid inlet channel is arranged in the valve core, one end of the first liquid inlet channel is communicated with the inlet, and the other end of the first liquid inlet channel radially extends into the shaft seat from the inside of the supporting seat;

and the second liquid inlet channel is arranged in the shaft seat, one end of the second liquid inlet channel is connected with the other end of the first liquid inlet channel, and the other end of the second liquid inlet channel extends to the outlet.

Furthermore, the valve body is provided with a chamfer angle structure matched with the inner peripheral wall of the liquid outlet and the edge of the outer peripheral plate opposite to the inner peripheral wall.

Furthermore, a positioning protrusion is arranged at the end part of the supporting seat of the valve core and connected between the outer peripheral wall of the first sealing structure and the inner peripheral wall of the outer peripheral plate;

the inner side wall of the valve body, which is provided with a liquid outlet, is provided with limiting ribs which are arranged at intervals along the circumferential direction; the positioning protrusion can be abutted against the limiting rib and is used for limiting the rotation range of the valve core;

preferably, the positioning protrusion extends along the radial direction of the shaft seat and is connected between the outer circumferential wall of the first sealing structure and the inner circumferential wall of the outer circumferential plate; the limiting rib is arranged along the radial extension of the end part of the valve body.

The switching valve further comprises a motor, which is arranged at the other end opposite to the liquid outlet of the switching valve, is connected with the valve core and is used for controlling the valve core to rotate relative to the valve body;

preferably, the washing machine further comprises a detergent box, wherein a plurality of detergent feeding cavities are in one-to-one correspondence with the plurality of liquid inlets; the first liquid inlet is communicated with the water inlet pipe and used for cleaning the throwing cavity.

A washing machine comprises the external detergent switching and putting device.

After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.

(1) The utility model discloses set up a plurality of inlets at the lateral part of valve body, set up the liquid outlet at the tip of valve body, the diverter valve can control liquid outlet and a plurality of inlet intercommunication or disconnection, and multiple detergent can be put in through the diverter valve, and simple structure, occupation space are little, with low costs.

(2) The utility model discloses a be equipped with assorted rotary seal structure between liquid outlet and export, make case and valve body realize that plug-in type is sealed, increased the leakproofness of diverter valve, realize when the case rotates for the valve body, leak when preventing to put in the detergent, set up step motor control diverter valve and carry out the detergent of different stages and select and put in, can realize the continuous control of putting in the device to the control accuracy of detergent input device has been improved.

(3) Through set up a inlet channel in the case, inlet channel's both ends communicate in one of a plurality of inlets and liquid outlet respectively, can realize the input of different detergents, can also seal other inlets when putting in, prevent to leak, have improved the whole leakproofness of diverter valve.

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments and that for a person skilled in the art, other drawings can also be derived from them without inventive effort. In the drawings:

FIG. 1 is a schematic view of the external detergent dispenser of the present invention connected to a washing machine;

FIG. 2 is a whole structure diagram of the external detergent dispensing device of the present invention;

FIG. 3 is a structural diagram of a dispensing device of the external detergent dispensing device of the present invention;

FIG. 4 is a structural diagram of a switching valve in the external detergent dispensing device of the present invention;

FIG. 5 is a top view of the external detergent dispensing device of FIG. 4;

FIG. 6 is a cross-sectional view of the external detergent dispensing device of the present invention shown in FIG. 5;

FIG. 7 is an enlarged view of the external detergent dispensing device of FIG. 6 at the position C;

FIG. 8 is a schematic view of a valve body of the external detergent dispensing device of the present invention;

FIG. 9 is a schematic view of a valve core of the external detergent dispensing device of the present invention;

FIG. 10 is a cross-sectional view of the external detergent dispensing device of the present invention shown in FIG. 5;

FIG. 11 is a schematic view of a switching valve of the external detergent dispensing device of the present invention;

fig. 12 is a schematic view of a switching valve in the external detergent dispensing device of the present invention.

In the figure: 1. a display screen; 2. the external detergent switching and putting device; 21. a housing; 22. a detergent box; 23. a stepping motor; 24. a pump is thrown in; 25. a detergent box mounting base; 26. a switching valve; 261. a liquid inlet; 2611. a water inlet; 262. a valve body; 2621. an annular groove; 2622. limiting ribs; 263. a liquid outlet; 264. a valve core; 2641. an annular boss; 2642. a liquid inlet channel; 2643. an inlet; 2644. positioning protrusions; 2645. a shaft seat; 2646. a supporting seat; 2647. an outer peripheral plate; 2648. an outlet; 3. a water inlet pipe; 4. A water outlet pipe; 5. a treatment agent box; 6. a control panel; 7. a door cover; 8. and cleaning the cover plate.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments, and the following embodiments are used to illustrate the present invention, but do not limit the scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed 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.

As shown in fig. 1 to 12, the external detergent switching and dispensing device of the present invention comprises a switching valve 26.

The switching valve 26 includes a valve body 262 and a spool 264.

The valve body 262 has a plurality of liquid inlets 261 spaced apart in a circumferential direction at a side thereof, and the valve body 262 has a liquid outlet 263 at an end thereof at a central position thereof.

The valve core 264 is rotatably arranged in the valve body 262, the outer peripheral wall of the valve core 264 is rotatably and hermetically connected with the inner peripheral wall of the valve body 262, and an outlet 2648 is arranged on the outer wall of the valve core 264 and is used for being communicated with the liquid inlet.

The liquid outlet 263 of the valve body 262 is connected with the outlet 2648 of the valve core 264 in a rotating and sealing way.

The utility model discloses a liquid outlet 263 of valve body 262 with rotate sealing connection between 2648 of the export of case 264, realize case 264 for in the valve body 262 pivoted, improve diverter valve 26's leakproofness, prevent when case 264 rotates for valve body 262, cause the detergent to leak, increase user experience.

The utility model discloses in, the lateral part of valve body 262 sets up a plurality of inlet 261 the tip central point of diverter valve 26 puts and sets up liquid outlet 263, can realize that multiple detergent is put in respectively through diverter valve 26, and simple structure, occupation space are little, with low costs.

As shown in fig. 1 to 3, the external detergent switching and dispensing device 2 is connected to the washing machine through a water inlet pipe 3 and a water outlet pipe 4. The external detergent switching and feeding device 2 comprises a shell 21, wherein a display screen 1 is arranged on the shell 21, and the state of detergent is displayed.

The water inlet pipe 3 and the water outlet pipe 4 are internally provided with one-way valves to prevent liquid from flowing back.

The washing machine further comprises a throwing pump 24, the throwing pump 24 is connected with the switching valve 26 through a pipeline, and detergent in the switching valve 26 is communicated with the water inlet pipe 3 and the water outlet pipe 4 through the throwing pump 24 and is used for throwing the detergent and cleaning the switching valve 26.

As shown in fig. 4 to 6, the utility model discloses set up a plurality of inlet 261 on the lateral part of valve body 262, set up liquid outlet 263 at the tip of valve body 262, the rotatable setting of case 264 is in the valve body 262, the entry 2643 that sets up on the outer peripheral wall of case 264 is optional to be communicated with one of a plurality of inlet 261 that set up on the valve body 262, makes one of them inlet with liquid outlet 263 communicates, realizes putting in to the detergent. Only one inlet 2643 is formed in the valve core 264, so that the structural complexity of the switching valve 26 is reduced, the cost is reduced, and the detergent types can be accurately fed.

Further, a matching rotary sealing structure is arranged between the liquid outlet 263 and the outlet 2648.

The utility model discloses a will rotary seal structure sets up liquid outlet 263 with export between 2648, when carrying out the detergent and putting in, rotary seal structure is close to liquid outlet 263, the smooth entering of detergent of being convenient for washs the intracavity, has reduced the residual amount of detergent in diverter valve 26, has promoted the washing effect.

The rotary seal structure includes a first rotary seal structure and a second rotary seal structure.

The first sealing structure is disposed at an outer periphery of the outlet 2648, and the first sealing structure is protruded toward the liquid outlet 263 of the valve body 262.

Preferably, the first sealing structure is an annular boss 2641.

Through will annular boss 2641 sets up export 2648's periphery, edge the liquid outlet 263 direction of valve body 262 extends the setting, convenient with liquid outlet 263 coordinates, annular boss 2641 can directly with the inner wall of liquid outlet 263 rotates sealing connection, forms plug-in type and seals, and the improvement is when carrying out the detergent and puts in, and switching valve 26's leakproofness improves the washing effect, increases user experience.

The second sealing structure is disposed on the inner sidewall of the valve body 262 at the periphery of the liquid outlet 263 and is in rotational contact with and sealed with the first sealing structure.

Preferably, the second sealing structure is an annular groove 2621.

The annular groove 2621 is arranged on the inner side wall of the valve body 262 at the periphery of the liquid outlet 263, and can be matched with the annular boss 2641 arranged at the periphery of the outlet 2648, the annular boss 2641 is arranged in the annular groove 2621 to form plug-in sealing, and the annular boss 2641 is inserted into the annular groove 2621 to realize circumferential rotation of the valve core 264 in the valve body 262, so that the sealing performance of detergent during putting is improved.

Specifically, as shown in fig. 6 to 7, an outlet 2648 is provided on an outer wall of the valve element 264, the outlet 2648 is communicated with the liquid outlet 263, and the sealing structure is provided at a communication position of the outlet 2648 and the liquid outlet 263.

The utility model discloses a set up on a tip of case 264 with the entry 2643 of liquid outlet 263 intercommunication, seal structure sets up export 2648 with the intercommunication department of liquid outlet 263 is fixed export 2648 with liquid outlet 263 intercommunication, simultaneously when case 264 rotates, make export 2648 with liquid outlet 263 communicates always, has reduced number, the simple structure of input pump 24, realizes multiple detergent, puts in through a diverter valve 26, has improved diverter valve 26's practicality, has increased user experience.

Further, the valve core 264 includes a shaft seat 2645, a support seat 2646 and an outer peripheral plate 2647.

The shaft seat 2645 is used for mounting a rotating shaft.

The rotating shaft is rotatably and hermetically arranged in the other end part opposite to the liquid outlet 263 in a penetrating manner, is connected with the valve core 264, and is used for driving the valve core 264 to rotate in the valve body 262.

The supporting seat 2646 extends from the outer circumferential wall of the shaft seat 2645 along a radial direction of the shaft seat 2645.

The inner periphery of the outer peripheral plate 2647 is connected to the outer periphery of the support seat 2646, an inlet 2643 is provided on the outer peripheral plate 2647 for selectively communicating with or disconnecting from one of the plurality of fluid inlets 261 when the valve element 264 rotates, and the inlet 2643 communicates with the outlet 2648.

The outlet 2648 is disposed at a center of an axial end of the shaft seat 2645, and is opposite to the liquid outlet 263; the first sealing structure is disposed on the shaft seat 2645 at the periphery of the outlet 2648.

Specifically, as shown in fig. 8 to 9, the annular boss 2641 is disposed on the shaft seat 2645 at the periphery of the outlet 2648, and extends along the axial direction of the shaft seat 2645, and the annular groove 2621 is disposed on the inner side wall of the valve body 262 at the periphery of the liquid outlet 263 of the valve body 262, and is disposed annularly along the liquid outlet 263 and extends toward the liquid outlet direction of the liquid outlet 263.

Preferably, the liquid outlet 263 and the outlet 2648 have the same diameter, and the annular boss 2641 is matched with the annular groove 2621 and is larger than the inner diameters of the outlet 2648 and the liquid outlet 263 respectively.

The annular boss 2641 may be disposed on an inner sidewall of the valve body 262 at the periphery of the liquid outlet 263, and extends along the inner sidewall of the valve body 262 in a direction opposite to the liquid outlet direction, and the annular groove 2621 is disposed on the shaft seat 2645 at the periphery of the outlet 2648 and extends in a direction opposite to the liquid outlet direction. The annular boss 2641 forms a plug-in seal with the annular groove 2621.

Further, the valve element 264 has a fluid inlet passage 2642 therein for communicating the inlet 2643 with the outlet 2648.

Through the liquid inlet passage 2642 arranged in the valve core 264 and communicated with the liquid outlet 263 and the inlet 2643 on the valve core 264, when the valve core 264 rotates, various detergents can be put in or enter water through the liquid inlet passage 2642 in the valve core 264 to wash the switching valve 26 one by one, so that the putting accuracy of different detergent types is improved or the switching valve is cleaned.

The liquid inlet passage 2642 is communicated with the inlet 2643 to plug other liquid inlets, so that other detergents are prevented from leaking when the detergent is put in, and the sealing performance of the switching valve 26 is improved. Only one inlet 2643 is provided on the valve core 264, which avoids complexity and misoperation of multiple inlets, improves control accuracy of the switching valve 26, and increases user experience.

The inlet passage 2642 includes a first inlet passage and a second inlet passage.

The first liquid inlet channel is disposed in the valve element 264, and one end of the first liquid inlet channel is communicated with the inlet 2643, and the other end of the first liquid inlet channel radially extends from the support seat 2646 to the shaft seat 2645.

The second liquid inlet channel is arranged in the shaft seat, one end of the second liquid inlet channel is connected with the other end of the first liquid inlet channel, and the other end of the second liquid inlet channel extends to the outlet 2648.

When detergent is put in or water is fed in, the detergent is put in or washed through the inlet 2643, the first liquid inlet channel, the second liquid inlet channel and the liquid outlet 263 in sequence.

The utility model discloses a will annular boss 2641 sets up on the second channel with liquid outlet 263 connects, annular groove 2621 sets up the periphery of liquid outlet 263, annular boss 2641 with annular groove 2621 cooperates, second inlet channel with liquid outlet 263 intercommunication makes second inlet channel can not cause the second inlet channel skew because case 264 rotates the liquid outlet 263 prevents the control inaccuracy, and hoisting device's leakproofness and practicality increase user's experience.

Further, a matched chamfer structure is provided between the inner peripheral wall of the liquid outlet 263 of the valve body 262 and the edge of the opposite outer peripheral plate 2647.

The utility model discloses a set up peripheral panel 2647 valve body 262 with set up phase-match chamfer structure on the peripheral panel 2647, realized peripheral panel 2647 with the internal perisporium contact of valve body 262 is sealed. The peripheral plate 2647 is provided with only one inlet 2643, which is adapted to be in communication with one of the plurality of inlet ports 261 and to block the other inlet port when dispensing is performed. When the inlet 2643 provided on the outer peripheral plate 2647 is rotated to one of the liquid inlets 261 opposite to each other, the opposite liquid inlet is communicated with the liquid inlet channel 2642 in the valve core 264, the annular boss 2641 at the second liquid inlet channel and the annular groove 2621 at the liquid outlet 263 realize plug-in type sealing, and a fixed amount of detergent is poured from the liquid outlet 263.

One of the plurality of liquid inlets 261 is a water inlet 2611

After the detergent is put into the valve body 262, the valve core 264 rotates, the inlet 2643 on the outer peripheral plate 2647 rotates to the water inlet 2611 and is communicated with the water inlet 2611, the second liquid inlet channel is communicated with the liquid outlet 263 all the time under the limitation of the annular groove 2621 and the annular boss 2641, and then water flows to wash the inside of the valve body 262 into the cleaning equipment, so that the detergent is put into or cleaned.

The rotation strength of the switching valve 26 is increased by providing the supporting seat 2646, and the chamfer structure is provided on the fitting surface between the valve body 262 and the peripheral plate 2647, so that the valve body 262 and the valve element 264 are more tightly fitted, and when detergent is put in, the detergent can be guided to the contact surface between the valve element 264 and the valve body 262 through the chamfer structure, thereby realizing a self-lubricating effect and facilitating the installation of the valve element 264.

Further, an end of the support seat 2646 of the valve core 264 is provided with a positioning projection 2644 connected between an outer circumferential wall of the first seal structure and an inner circumferential wall of the outer circumferential plate 2647.

The valve body 262 is provided with a limiting rib 2622 on the inner side wall of the liquid outlet 263, and is arranged at intervals along the circumferential direction.

Specifically, the positioning protrusion 2644 is disposed along a radial direction of the shaft seat 2645; the limiting rib 2622 is arranged along the radial extension of the end of the valve body 262.

The positioning protrusion 2644 may abut against the limiting rib 2622 to limit a rotation range of the valve core 264.

The number of the limiting ribs 2622 is two, the end portion of the supporting seat 2646 of the valve element 264 is provided with a positioning protrusion 2644 connected between the outer peripheral plate 2647 and the annular boss 2641, and the two limiting ribs 2622 can be respectively abutted against the limiting ribs 2622 to limit the rotation range of the valve element 264 within a preset range.

Further, the valve further comprises a motor, which is disposed at the other end opposite to the liquid outlet 263 of the switching valve 26, and is connected to the valve core 264, for controlling the valve core 264 to rotate relative to the valve body 262.

Preferably, the motor is a stepper motor 23.

Through set up spacing muscle 2622 in the circumference of the tip of liquid outlet 263, can with the protruding 2644 of location cooperates on the tip of supporting seat 2646, makes diverter valve 26 move under step motor's control, spacing muscle 2622 with during the protruding 2644 contact of location, step motor hinders changeing, and diverter valve 26 does not carry out the detergent and puts in the state, makes diverter valve 26 control accuracy more accurate, increases user experience.

The rotating shaft is disposed at an end of the switching valve 26 opposite to the liquid outlet 263 and connected to a motor, the rotating shaft, the stepping motor 23 and the valve core 264 are coaxially disposed, and the stepping motor 23 drives the rotating shaft to drive the valve core 264 to rotate. The stepping motor 23 is connected to the switching valve 26 via a connection.

Preferably, the washing machine further comprises a detergent box 22 having a plurality of detergent feeding cavities corresponding to the plurality of liquid inlets 261 one by one; a water inlet 2611 in the plurality of liquid inlets 261 is communicated with a water inlet pipe 3 for cleaning the feeding cavity.

The utility model discloses a set up annular groove 2621 on the valve body 262, on the case 264 set up in annular boss 2641 that annular groove 2621 matches forms the plug-in type sealed. The annular boss 2641 is connected with the annular groove 2621 in a rotating and sealing manner, so that the valve core 264 rotates circumferentially in the valve body 262, and the sealing performance of detergent during putting is improved.

The utility model discloses a case 264 of diverter valve 26 with set up annular boss 2641 and annular groove 2621 on the valve body 262 respectively, will case 264 with valve body 262 forms plug-in type and seals, realizes case 264 for valve body 262 rotates sealing connection, cooperation a plurality of inlet 261 and liquid outlet 263 on the periphery wall of valve body 262, with case 264 inside entry 2643, inlet passage 2642 and export 2648 realize under step motor's the drive that case 264 can be selected with a inlet intercommunication or disconnection in a plurality of inlet 261, entry 2643, export 2648 with liquid outlet 263 intercommunication realizes putting in the accuracy of detergent.

The utility model discloses a step motor control diverter valve 26 makes liquid outlet 263 and a plurality of inlet 261 intercommunication or disconnection, and multiple detergent can be put in through diverter valve 26, and simple structure, occupation space are little, and are with low costs.

The utility model also provides a washing machine, washing machine includes that the aforesaid is arbitrary external detergent switch over input device 2.

The utility model can be arranged in the washing machine, and is not limited to be arranged in washing equipment such as a clothes dryer, a nursing machine and a dish-washing machine.

The above embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above embodiments, but not to limit the present invention, any person skilled in the art can make modifications or changes to equivalent embodiments by utilizing the above technical contents without departing from the technical scope of the present invention, and the embodiments in the above embodiments can be further combined or replaced, but any simple modification, equivalent change and modification made to the above embodiments by the technical essence of the present invention still fall within the scope of the present invention.

Claims

1. The utility model provides an external detergent switches input device which characterized in that: comprises a switching valve, the switching valve comprises,

2. The external detergent switching and feeding device as claimed in claim 1, wherein: and a matched rotary sealing structure is arranged between the liquid outlet and the outlet.

3. The external detergent switching and feeding device as claimed in claim 2, wherein: the rotary seal comprises a first sealing structure arranged at the periphery of the outlet, and the first sealing structure is arranged in a protruding manner towards the liquid outlet direction of the valve body.

4. The external detergent switching and feeding device as claimed in claim 3, wherein: the first sealing structure is an annular boss.

5. The external detergent switching and feeding device as claimed in claim 3, wherein: the rotary sealing structure further comprises a second sealing structure which is arranged on the inner side wall of the valve body at the periphery of the liquid outlet and is in rotary contact sealing with the first sealing structure.

6. The external detergent switching and feeding device as claimed in claim 5, wherein: the second sealing structure is an annular groove.

7. The external detergent switching and dispensing device as defined in any one of claims 3-5, wherein: the valve core comprises a valve core body and a valve core body,

the shaft seat is used for mounting a rotating shaft;

the inner periphery of the outer peripheral plate is connected with the outer periphery of the supporting seat, an inlet is formed in the outer peripheral plate and used for being selectively communicated with or disconnected from one of the liquid inlets when the valve core rotates, and the inlet is communicated with the outlet;

8. The external detergent switching and feeding device as claimed in claim 7, wherein: the valve core is internally provided with a liquid inlet channel which is communicated with the inlet and the outlet;

the liquid inlet channel comprises a liquid inlet channel,

9. The external detergent switching and feeding device as claimed in claim 7, wherein: the valve body has the inner perisporium of liquid outlet is equipped with assorted chamfer structure with relative between the border of periphery plate.

10. The external detergent switching and feeding device as claimed in claim 7, wherein: the end part of the supporting seat of the valve core is provided with a positioning protrusion, and the inner side wall of the valve body, which is provided with a liquid outlet, is provided with limiting ribs which are arranged at intervals along the circumferential direction; the positioning protrusion can be abutted against the limiting rib and used for limiting the rotation range of the valve core.

11. The external detergent switching and feeding device as claimed in claim 10, wherein: the positioning protrusion extends along the radial direction of the shaft seat and is connected between the outer peripheral wall of the first sealing structure and the inner peripheral wall of the outer peripheral plate; the limiting rib is arranged along the radial extension of the end part of the valve body.

12. The external detergent switching and feeding device as claimed in claim 1, wherein: the switching valve further comprises a motor, wherein the motor is arranged at the other end, opposite to the liquid outlet, of the switching valve, is connected with the valve core and is used for controlling the valve core to rotate relative to the valve body.

13. The external detergent switching and feeding device as claimed in claim 12, wherein: the washing machine also comprises a detergent box which is provided with a plurality of detergent feeding cavities corresponding to the liquid inlets one by one; one of the liquid inlets is communicated with the water inlet pipe and used for cleaning the throwing cavity.

14. A washing machine characterized in that: comprising an external detergent switching and dispensing device according to any one of claims 1-13.