CN216519737U

CN216519737U - Water diversion valve and dish washing machine

Info

Publication number: CN216519737U
Application number: CN202122546998.3U
Authority: CN
Inventors: 王文龙; 徐�明; 黄大理
Original assignee: Shaanxi Kangjia Intelligent Appliance Co ltd
Current assignee: Shaanxi Kangjia Intelligent Appliance Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-05-13
Anticipated expiration: 2031-10-22

Abstract

The utility model provides a water distribution valve and a dish washing machine. The valve body is provided with a water inlet pipe, the water inlet pipe does not pass through the center of the valve body, and water flow enters the water inlet cavity through the water inlet pipe and flows along the inner wall of the water inlet cavity to form spiral water flow. The spiral water flow enters the water inlet cavity. Because the lower surface of the water diversion piece is provided with the flow guide piece, the small end of the conical guide hole of the conical flow guide hole arranged on the flow guide piece faces the water outlet hole, the spiral water flow can impact the flow guide piece to provide an upward component force for the water diversion piece, so that the water diversion piece moves upwards and is attached to the water tank. Because the flow guide piece is provided with the large end and the small end, the pressure is different at the large end and the small end due to different flow velocities, the flow velocity of the large end is small, the pressure is large, the flow velocity of the small end is large, the pressure difference is formed between the large end and the small end, and under the action of the pressure difference, the water diversion piece can generate upward lifting component force and can be attached to the water tank. The effect of sealing without adding parts is achieved.

Description

Water diversion valve and dish washing machine

Technical Field

The utility model relates to the technical field of dish washing machines, in particular to a water diversion valve and a dish washing machine.

Background

Dishwashers will generally be provided with 2 to 3 layers of spray arms to achieve a better washing result. When the dishwasher works, the washing pump can convey water in the dishwasher to each spray arm, the water is sprayed from the spray arms and acts on the tableware to achieve the purpose of washing, and then the water flows back to the washing pump, so that the purpose of cleaning the tableware is achieved in a circulating mode.

In practical application, each layer of spray arms can be opened or combined to save water. This requires a diverter valve in the dishwasher to control the flow of water to each level of the spray arm. Under the prior art, a water diversion baffle of a water diversion valve of a dishwasher is generally provided with one to a plurality of openings, and a water outlet channel or a plurality of water outlet channels are arranged on a water tank of the dishwasher opposite to the openings. When the water diversion valve works, the water diversion sheet rotates under the drive of the water diversion motor, and the opening on the water diversion sheet corresponds to the water outlet channel of the water tank. And only when the two are corresponding, the water flow entering the water diversion valve shell can enter the interior of the dishwasher through the communicated channel for washing. In the prior art, an elastic part is additionally arranged at the lower part of the water distribution piece to jack the water distribution piece upwards so as to be tightly attached to the lower surface of the water cup to realize sealing. However, this requires the addition of an elastic member, which is always immersed in water, and has problems of cost, assembly and reliability.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model provides a water diversion valve and a dishwasher.

The utility model is realized by the following technical scheme:

a water dividing valve comprises a valve body and a water dividing piece, wherein the valve body is fixedly connected with a water tank, the valve body is provided with a water inlet cavity, the water dividing piece is rotatably arranged between the water inlet cavity and the water tank, the water dividing piece is provided with a water outlet hole, and the water outlet hole is used for being communicated with different water inlet holes in the water tank in the rotating process of the water dividing piece;

the valve body is equipped with the inlet tube, the inlet tube does not pass through the center of valve body, the water knockout drum is close to one side of intake antrum is equipped with water conservancy diversion spare.

As a further improvement of the above scheme, the flow guide member is provided with a conical guide hole, the small end of the conical guide hole faces the water outlet hole, and the flow guide member is arranged at the edge of the water outlet hole.

As a further improvement of the above, the diameter of the hole from the large end of the tapered guide hole to the small end of the tapered guide hole decreases in equal increments.

As a further improvement of the scheme, the shunt valve is further provided with a driving mechanism, a microswitch and a shell, the driving mechanism is arranged on the shell and is in transmission connection with the shunt piece, and the microswitch is arranged in the shell.

As a further improvement of the above scheme, actuating mechanism includes driving motor, cam and micro-gap switch, the casing is equipped with first chamber, the second of holding and holds chamber and safety cover, first hold the chamber with the second holds the chamber and is located same horizontal plane, first hold the chamber with the second holds the chamber and switches on mutually, the safety cover is located the bottom of casing, driving motor locates in the safety cover, the cam is located first hold the chamber, micro-gap switch locates the second holds the chamber, driving motor's output shaft runs through the casing and stretches into the second holds the chamber, driving motor's output shaft with cam drive connects.

As a further improvement of the above scheme, the cam includes a connecting shaft and a rotating wheel body, the connecting shaft is disposed in the middle of the rotating wheel body, the rotating wheel body is provided with a plurality of protruding ends arranged at intervals along the circumferential direction, and the protruding ends are abutted to the contacts of the micro switch.

As a further improvement of the above scheme, the water diversion piece is provided with a rotating shaft, the connecting shaft is provided with a limiting hole, the limiting hole is arranged at two ends of the connecting shaft, an output shaft of the driving motor is in matched connection with the limiting hole, and the rotating shaft is in matched connection with the limiting hole.

The utility model also provides a dish washing machine, which comprises the water distribution valve.

The utility model has the beneficial effects that:

the utility model provides a water diversion valve which comprises a valve body and a water diversion sheet arranged on one side of the valve body. The valve body is equipped with the inlet tube, and the inlet tube does not pass through the center of valve body, and rivers pass through the inlet tube and get into the intake antrum, flow along the inner wall of intake antrum, form spiral rivers. The spiral water flow enters the water inlet cavity. Because the lower surface of the water diversion piece is provided with the water diversion piece, the small end of the conical guide hole arranged on the water diversion piece faces the water outlet hole, and the horizontal plane at the large end axle center of the conical guide hole is lower than the horizontal plane at the small end axle center of the conical guide hole. The spiral water flow impacts the flow guiding piece to give an upward component force to the water distribution piece, so that the water distribution piece moves upwards to be attached to the water tank. Meanwhile, the flow guide piece is provided with a large end and a small end, pressure is different at the large end and the small end due to different flow velocities, the large end is small in flow velocity, the pressure is large, the small end is large in flow velocity and small in pressure, pressure difference is formed between the large end and the small end, and under the action of the pressure difference, the water diversion piece can generate upward lifting component force and can be attached to the water tank. In this way, the effect of sealing without adding a component is achieved.

Drawings

FIG. 1 is a perspective view of a diverter valve of the present invention;

FIG. 2 is an exploded view of the diverter valve of the present invention;

FIG. 3 is a schematic cross-sectional view of the shunt valve of the present invention after being installed with a water tank;

FIG. 4 is an exploded view of the water diverter blade of the present invention;

FIG. 5 is an exploded view of the cam of the present invention;

description of reference numerals: 1. a valve body; 2. a water diversion sheet; 4. a drive mechanism; 3. a housing; 11. a water inlet cavity; 12. A water inlet pipe; 22. a flow guide member; 23. a tapered guide hole; 43. a drive motor; 41. a cam; 42. a microswitch; 31. a first accommodating chamber; 32. a second accommodating chamber; 33. a protective cover; 412. a connecting shaft; 411. a runner body; 4121. a limiting hole; 413. an overhang; 24. a rotating shaft.

Detailed Description

In order to more clearly and completely describe the technical scheme of the utility model, the utility model is further described with reference to the accompanying drawings.

Referring to fig. 1-2, a water diversion valve includes a valve body 1, a water diversion sheet 2 disposed on one side of the valve body 1, a driving mechanism 4, a housing 3, and a micro switch 42 disposed in the housing 3.

For convenience of description, the most common cylindrical shape is selected as the shape of the valve body 1 in the present embodiment, and it should be understood that the valve body 1 may have other shapes.

The valve body 1 is fixedly connected with a water tank of the dish washing machine, so that the flow of water entering the water tank is controlled.

Valve body 1 is equipped with intake antrum 11, and intake antrum 11 has the cushioning effect to rivers, and the rivers that lie in intake antrum 11 simultaneously exert certain power to water distribution sheet 2 for water distribution sheet 2 and the bottom butt of basin.

Valve body 1 is equipped with inlet tube 12, and inlet tube 12 can be the pipe, also can be the pipe of other shapes, and in this embodiment, the axis of inlet tube 12 does not pass through the axis with valve body 1, and rivers pass through inlet tube 12 and get into intake antrum 11, flow along the inner wall of intake antrum 11, form the spiral rivers.

The water diversion sheet 2 is matched with the shape of the valve body 1 and is also in a round sheet shape, the water diversion sheet 2 is rotatably arranged between the water inlet cavity 11 and the water tank, the water diversion sheet 2 is provided with a water outlet hole, and in the rotating process of the water diversion sheet 2, the water outlet hole is used for being communicated with different water inlet holes on the water tank, so that the communication, the closing and the switching of a spraying passage are realized, and the water diversion sheet 2 is provided with a rotating shaft 24 and is connected with a driving mechanism 4, so that the rotation of the water diversion sheet 2 is realized.

A diversion piece 22 is arranged on one side of the water diversion piece 2 close to the water inlet cavity 11.

The flow guide piece 22 is a hook-shaped rib part, extends from the center of the water distribution piece 2 to the edge of the water distribution piece 2 and has a certain radian.

The height of the flow guide part 22 at the center of the water distribution piece 2 is the highest, the closer to the edge of the water distribution piece 2, the lower the height of the flow guide part 22 is, the height change rule of the flow guide part 22 is equal, the transition is smooth, and stress concentration caused by severe size change is prevented.

The water guide part 22 is arranged at the edge of the water outlet hole, and water flowing out of the small end of the water guide part 22 can directly flow into the water tank along the water outlet hole and cannot fall into the water inlet cavity 11 again, so that the energy consumption is reduced to the lowest. Further increasing the flow of the flow guide 22 so that the flow guide 22 is always in the maximum stress state.

Referring to fig. 3-4, the flow guiding member 22 has a conical guiding hole 23, the small end of the conical guiding hole 23 faces the water outlet, and the horizontal plane at the axis of the large end of the conical guiding hole 23 is lower than the horizontal plane at the axis of the small end of the conical guiding hole 23.

The aperture of the large end of the tapered guide hole 23 towards the small end of the tapered guide hole 23 is decreased in equal amount, for example, the flow guide member 22 is in a truncated cone shape, the aperture of the large end of the flow guide member 22 is set to be 4 mm, the aperture of the small end of the flow guide member 22 is set to be 2 mm, and the length of the flow guide hole is 2 mm, so that the aperture change per mm is 1 mm, and stress concentration caused by severe size change is prevented.

The working principle of the utility model is as follows: the valve body 1 is provided with a water inlet pipe 12, the water inlet pipe 12 is tangent to the side wall of the valve body 1, and water flows into the water inlet cavity 11 through the water inlet pipe 12 and flows along the inner wall of the water inlet cavity 11 to form spiral water flow. The spiral water flow enters the inside of the water inlet cavity 11.

Because the lower surface of the water diversion piece 2 is provided with the water diversion piece 22, the small end of the conical guide hole 23 of the conical guide hole arranged on the water diversion piece 22 faces the water outlet hole, and the horizontal plane at the axle center of the large end of the conical guide hole 23 is lower than the horizontal plane at the axle center of the small end of the conical guide hole 23.

The spiral water flow will impact the diversion member 22 to give an upward component to the water diversion piece 2, so that the water diversion piece 2 moves upward to be attached to the water tank. Meanwhile, because the diversion part 22 has a large end and a small end, the pressure is different at the large end and the small end due to different flow velocities, the flow velocity at the large end is small, the pressure is large, the flow velocity at the small end is large, and the pressure difference is formed between the large end and the small end, under the action of the pressure difference, the water diversion piece 2 generates an upward lifting component force, and the water diversion piece 2 is also attached to the water tank. In this way, the effect of sealing without adding a component is achieved.

It should be noted that, in order to further enhance the sealing effect, a sealing ring may be additionally provided.

It should be noted that the taper may be other tapers and is not limited to a cone.

Actuating mechanism 4 locates on the casing 3 and with the axle center fixed connection of water distribution piece 2 to drive water distribution piece 2 and rotate, at the rotation in-process of water distribution piece 2, the apopore is used for switching on with the different inlet openings on the basin, thereby realizes switching on, closing and switching of spraying the route.

The drive mechanism 4 includes a drive motor 43, a cam 41, and a microswitch 42.

The housing 3 is provided with a first accommodation chamber 31, a second accommodation chamber 32, and a protection cover 33.

The inside of the first accommodation chamber 31 is provided with a cam 41.

A micro switch 42 is provided inside the second accommodation chamber 32.

The first accommodating cavity 31 and the second accommodating cavity 32 are located in the same horizontal plane, and the first accommodating cavity 31 is communicated with the second accommodating cavity 32, so that the connection of parts arranged in the first accommodating cavity 31 and the second accommodating cavity is realized.

The protective cover 33 is located at the bottom of the housing 3, a hole (not shown) is formed above the protective cover 33, the protective cover 33 and the second accommodating cavity 32 are communicated with each other through the hole, and the driving motor 43 is arranged inside the protective cover 33.

An output shaft of the driving motor 43 protrudes into the second receiving chamber 32 through the hole, and the output shaft of the driving motor 43 is connected to the cam 41, thereby driving the cam 41 to rotate.

Referring to fig. 5, the cam 41 includes a connecting shaft 412 and a roller body 411.

The connecting shaft 412 is disposed in the middle of the wheel body 411, and two ends of the connecting shaft 412 are provided with limiting holes 4121.

The limit holes 4121 at the two ends of the connecting shaft 412 are respectively connected with the output shaft of the driving motor 43 and the rotating shaft 24 on the water dividing plate 2.

The limiting hole 4121 is semicircular, so the corresponding output shaft of the driving motor 43 and the corresponding rotating shaft 24 on the water diversion piece 2 are also semicircular column-shaped, thereby realizing the matching connection with the limiting hole 4121.

The semicircular shape of the limiting hole 4121 is skillfully arranged, so that the relative rotation of the output shaft of the driving motor 43, the rotating shaft 24 on the water diversion piece 2 and the connecting shaft 412 can be prevented without additionally arranging a limiting part, and the integral structure of the water diversion valve is simplified.

It should be noted that in other embodiments of the present invention, the shape of the limiting hole 4121 may be square, triangular or other shapes, as long as it is not round, and thus the present invention is within the protection scope.

The rotor body 411 is provided with a plurality of protruding ends 413 arranged at intervals in the circumferential direction, and the protruding ends 413 abut against the contacts of the micro switch 42.

The inching working principle of the water distribution piece 2 is as follows: in the working process of the water distribution valve, when the cam 41 drives the water distribution piece 2 to rotate at a constant speed, in the rotating process of the cam 41, the contacts on the microswitch 42 are pressed down by the plurality of protruding ends 413 on the periphery of the cam 41 at certain intervals, and the protruding ends 413 with different lengths can be arranged, so that the time periods for pressing down the contacts are different, a plurality of time signals are formed, and the rotation of the water distribution piece 2 is accurately controlled.

The utility model also provides a dish washing machine which is characterized by comprising the water distribution valve. Through setting up above-mentioned shunt valve for dish washer water conservation function is good, and the structure is retrencied more than traditional dish washer, simple to operate, and it is convenient to use.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Of course, the present invention may have other embodiments, and based on the embodiments, those skilled in the art can obtain other embodiments without any creative effort, and all of them are within the protection scope of the present invention.

Claims

1. A water diversion valve comprises a valve body and a water diversion sheet, wherein the valve body is fixedly connected with a water tank, the valve body is provided with a water inlet cavity, the water diversion sheet is rotatably arranged between the water inlet cavity and the water tank, the water diversion sheet is provided with a water outlet hole, and the water outlet hole is used for being communicated with different water inlet holes on the water tank in the rotating process of the water diversion sheet,

2. The shunt valve of claim 1, wherein the flow guide member is provided with a tapered guide hole, a small end of the tapered guide hole faces the water outlet hole, and the flow guide member is arranged at an edge of the water outlet hole.

3. The shunt valve of claim 2, wherein the diameter of the bore of the large end of the tapered guide bore decreases in an equal amount toward the small end of the tapered guide bore.

4. The shunt valve of claim 1, further comprising a drive mechanism, a micro-switch, and a housing, wherein the drive mechanism is disposed on the housing and is in drive connection with the shunt piece, and the micro-switch is disposed in the housing.

5. The shunt valve of claim 4, wherein the drive mechanism comprises a drive motor, a cam and a microswitch, the housing is provided with a first accommodating cavity, a second accommodating cavity and a protective cover, the first accommodating cavity and the second accommodating cavity are located in the same horizontal plane, the first accommodating cavity is communicated with the second accommodating cavity, the protective cover is located at the bottom of the housing, the drive motor is located in the protective cover, the cam is located in the first accommodating cavity, the microswitch is located in the second accommodating cavity, an output shaft of the drive motor penetrates through the housing and extends into the second accommodating cavity, and the output shaft of the drive motor is in transmission connection with the cam.

6. The shunt valve of claim 5, wherein the cam comprises a connecting shaft and a runner body, the connecting shaft is arranged in the middle of the runner body, the runner body is provided with a plurality of protruding ends arranged at intervals along the circumferential direction, and the protruding ends are abutted with the contacts of the micro switch.

7. The shunt valve of claim 6, wherein the shunt piece is provided with a rotating shaft, the connecting shaft is provided with a limiting hole, the limiting hole is formed in two ends of the connecting shaft, the output shaft of the driving motor is connected with the limiting hole in a matching manner, and the rotating shaft is connected with the limiting hole in a matching manner.

8. A dishwasher, characterized in that it comprises a diverter valve according to any one of claims 1 to 7.