Spraying device and dish washing machine

Abstract

The spraying device comprises a spraying arm, a valve body and a moving body, and the spraying arm is provided with a first spraying cavity, a first spraying hole, a second spraying cavity and a second spraying hole. The valve body comprises a circulation channel, and the circulation channel is provided with a first water inlet, a first water outlet, a second water inlet and a second water outlet. And the moving body is movably arranged in the circulating channel of the valve body, and is configured as follows: when water enters the first water inlet and the second water inlet, the moving body is driven by water flow to move in the circulating channel and blocks one of the first water outlet and the second water outlet under the action of fluid, so that the rotating direction of the spraying arm is changed. The movable body blocks one of the first water outlet and the second water outlet of the valve body under the action of the fluid, switchable water spraying of the first spraying cavity and the second spraying cavity of the spraying arm can be achieved, the use requirements for water spraying of different spraying cavities are met, and the movable body can move according to a set route.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dish washing machine equipment, and in particular to a spraying device and a dish washing machine. BACKGROUND

[0002] With the improvement of material living standards, dish washing machines that can free hands are gradually becoming the standard of quality life. Compared with traditional hand washing, dish washing machines have the advantages of clean washing, sterilization, water and labor saving, etc. Dish washing machines generally use a spraying washing method. Under the drive of a washing pump, water flows through a rotating spray arm to spray and flush the surface of tableware. With the improvement of user demand, people are expecting the emergence of new dish washing machines with comprehensive performance improvement. SUMMARY

[0003] The present application relates to the technical field of dish washing machine equipment, and in particular to a spraying device and a dish washing machine.

[0004] Therefore, the present application provides a spraying device and a dish washing machine to solve the problem that it is difficult to improve the spray arm to control the water spraying of different spray chambers.

[0005] In a first aspect, the present application provides a spraying device for a dish washing machine, comprising:

[0006] a spray arm having a first spray chamber, a first spray hole in communication with the first spray chamber, a second spray chamber, and a second spray hole in communication with the second spray chamber, the driving direction of the first spray hole being opposite to the driving direction of the second spray hole;

[0007] a valve body comprising a circulation channel having a first water inlet, a first water outlet, a second water inlet, and a second water outlet, the first spray chamber being in communication with the first water outlet, and the second spray chamber being in communication with the second water outlet; and

[0008] a moving body movably arranged in the circulation channel of the valve body, the moving body being configured to be driven by the water flow to move in the circulation channel when water flows into the first water inlet and the second water inlet, and to block one of the first water outlet and the second water outlet under the action of the fluid to change the rotation direction of the spray arm.

[0009] In some embodiments, the circulation channel further has a first low position and a second low position, the first water inlet, the first low position, the first water outlet, the second water inlet, the second low position, and the second water outlet being sequentially arranged along the circumference of the circulation channel;

[0010] The mobile body is configured to be driven by water flow and block the first water outlet when the mobile body is in the first low position and the first water inlet and the second water inlet are supplied with water, and to be driven by water flow and block the second water outlet when the mobile body is in the second low position and the first water inlet and the second water inlet are supplied with water.

[0011] In some embodiments, in the direction of gravity, the first water inlet is lower than the first water outlet, and the second water inlet is lower than the second water outlet, and when the first water inlet and the second water inlet stop being supplied with water, the mobile body falls to the first low position or the second low position due to the loss of fluid action.

[0012] In some embodiments, the first water inlet and the second water inlet are centrally symmetric about the central axis of the valve body.

[0013] In some embodiments, the first low position and the second low position are centrally symmetric about the central axis of the valve body.

[0014] In some embodiments, the first water outlet and the second water outlet are centrally symmetric about the central axis of the valve body.

[0015] In some embodiments, the circulation channel comprises a first flow guide pipe and a second flow guide pipe, the first flow guide pipe having the first water inlet, the first low position, and the first water outlet, and the second flow guide pipe having the second water inlet, the second low position, and the second water outlet, wherein the communication position of the first flow guide pipe and the second flow guide pipe is below the second water outlet, and the communication position of the second flow guide pipe and the first flow guide pipe is below the first water outlet.

[0016] In some embodiments, the first flow guide pipe and the second flow guide pipe are centrally symmetric about the central axis of the valve body.

[0017] In some embodiments, the first flow guide pipe comprises a first flow guide section and a second flow guide section, the second flow guide section being connected to the end of the first flow guide section along the water flow direction, the end of the second flow guide section being connected to the second flow guide pipe, and the first low position being located at the inner bottom wall of the joint of the first flow guide section and the second flow guide section.

[0018] In some embodiments, the first flow guide section is a descending pipe gradually descending along the water flow direction, and the second flow guide section is an ascending pipe gradually ascending along the water flow direction.

[0019] In some embodiments, the first flow guide pipe further comprises a first water outlet section, the first water outlet section gradually ascending along the water flow direction from the end of the second flow guide section, and the first water outlet being located at the end of the first water outlet section along the water flow direction.

[0020] In some embodiments, the second flow guide pipe comprises a third flow guide section and a fourth flow guide section, the fourth flow guide section is connected to the end of the third flow guide section along the water flow direction, and the end of the fourth flow guide section along the water flow direction is connected to the first flow guide pipe; the second low position is located at the inner bottom wall of the joint of the third flow guide section and the fourth flow guide section.

[0021] In some embodiments, the third flow guide section is a descending pipe gradually descending along the water flow direction, and the fourth flow guide section is an ascending pipe gradually ascending along the water flow direction.

[0022] In some embodiments, the second flow guide pipe further comprises a second water outlet section, the second water outlet section gradually ascends along the water flow direction from the end of the fourth flow guide section, and the second water outlet is located at the end of the second water outlet section along the water flow direction.

[0023] In some embodiments, the side of the spray arm close to the valve body is provided with a first connecting part, and the first spray cavity is in communication with the first water outlet section through the first connecting part.

[0024] In some embodiments, the side of the spray arm close to the valve body is provided with a second connecting part, and the second spray cavity is in communication with the second water outlet section through the second connecting part.

[0025] In some embodiments, the first connecting part and the second connecting part are symmetrically arranged.

[0026] In some embodiments, the first water inlet, the first water outlet, the second water inlet and the second water outlet are sequentially arranged along the circumferential direction of the circulation channel; and along the water flow direction, the distance between the first water inlet and the first water outlet is greater than the distance between the first water outlet and the second water inlet.

[0027] In some embodiments, along the water flow direction, the distance between the second water inlet and the second water outlet is greater than the distance between the second water outlet and the first water inlet.

[0028] In some embodiments, the valve body further comprises a water inlet pipe, the water inlet pipe comprises a main pipe, a first branch pipe and a second branch pipe, the first branch pipe and the second branch pipe are in communication with the main pipe, the end of the first branch pipe away from the main pipe is in communication with the first water inlet, and the end of the second branch pipe away from the main pipe is in communication with the second water inlet.

[0029] In some embodiments, along the central axis direction of the valve body, the projection of the circulation channel is surrounded by the circumferential side of the projection of the main pipe.

[0030] In some embodiments, the moving body is a sphere, wherein the inner diameter of the first water inlet is smaller than the outer diameter of the moving body, the inner diameter of the second water inlet is smaller than the inner diameter of the moving body; the inner diameter of the first water outlet is smaller than the outer diameter of the moving body, and the inner diameter of the second water outlet is smaller than the inner diameter of the moving body.

[0031] In some embodiments, the valve body is fixed relative to the spray arm. In a second aspect, an embodiment of the present application provides a dishwasher, comprising the above-mentioned spray device, a housing, and an inner tank, wherein the inner tank is disposed in the housing and has a washing chamber, and the spray arm is located in the washing chamber.

[0032] The spray device and dishwasher of the present application can realize switchable water spraying between the first spray chamber and the second spray chamber of the spray arm by blocking one of the first water outlet and the second water outlet of the valve body through the moving body under the action of the fluid, thereby meeting the use requirements of different spray chamber water spraying.

[0033] The above-mentioned valve body is provided with two water inlets, namely the circulation channel, the first water inlet and the second water inlet. The two water inlets both take in water when the valve body takes in water, and both stop taking in water when the valve body stops taking in water. Compared with only a single water inlet being provided on the valve body, the provision of two water inlets is conducive to the movement of the moving body along the established route of the circulation channel, and the structure is more balanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0035] Figure 1 Schematic diagram of the structure of the spray device provided in the embodiment of the present application;

[0036] Figure 2 yes Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0037] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0038] Figure 4 yes Figure 1 A schematic diagram of the top view of the spray device is shown;

[0039] Figure 5 yes Figure 1 A schematic structural diagram of a valve body in a spray device is shown;

[0040] Figure 6 yes Figure 5 Schematic diagram of the main structure of the middle valve body;

[0041] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure in the CC direction;

[0042] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0043] Figure 9 yes Figure 5 Schematic diagram of the right side structure of the middle valve body;

[0044] Figure 10 yes Figure 9 Schematic diagram of the cross-sectional structure in the EE direction;

[0045] Figure 11 yes Figure 5 Schematic diagram of the structure of the middle valve body from another perspective.

[0046] Description of reference numerals:

[0047] 1. Spraying device;

[0048] 10. Valve body; 10a. Circulation channel;

[0049] 11. First flow guide pipe; 111. First water inlet; 112. First low position; 113. First water outlet; 114. First flow guide section; 115. Second flow guide section; 116. First water outlet section; 1161. First guide portion; 1162. First pipe wall; 1163. Second pipe wall; 1164. First connecting portion;

[0050] 12. Second flow guide pipe; 121. Second water inlet; 122. Second low position; 123. Second water outlet; 124. Third flow guide section; 125. Fourth flow guide section; 126. Second water outlet section; 1261. Second guide portion; 1262. Third pipe wall; 1263. Fourth pipe wall; 1264. Second connecting portion;

[0051] 13. Water inlet pipe; 131. Main pipe; 132. First branch pipe; 133. Second branch pipe;

[0052] 20. Mobile body;

[0053] 30. Spray arm; 31. First spray chamber; 32. First spray hole; 321. First guide spray hole; 33. Second spray chamber; 34. Second spray hole; 341. Second guide spray hole; 35. First connecting portion; 36. Second connecting portion;

[0054] x, central axis. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0056] The following description refers to the accompanying drawings. Unless otherwise noted, same or similar components in different drawings have same or similar reference numerals. The implementations described in the following exemplary embodiments are not meant to represent all implementations consistent with the present disclosure. Instead they are simply examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0057] Referring to Figures 1 to 8 The embodiments of the present disclosure provide a spraying device 1 used in a dishwasher for cleaning dishes and the like placed in the dishwasher. The spraying device 1 includes a valve body 10, a moving body 20, and a spraying arm 30.

[0058] Referring to Figures 1 to 4 The spraying arm 30 has a first spraying cavity 31, a first spraying hole 32 communicating with the first spraying cavity 31, a second spraying cavity 33, and a second spraying hole 34 communicating with the second spraying cavity 33. The driving direction of the first spraying hole 32 is opposite to the driving direction of the second spraying hole 34. Figures 5 to 8 The valve body 10 includes a circulation channel 10a having a first water inlet 111, a first water outlet 113, a second water inlet 121, and a second water outlet 123. Figures 1 to 8 The first spraying cavity 31 communicates with the first water outlet 113, and the second spraying cavity 33 communicates with the second water outlet 123. The moving body 20 is movably arranged in the circulation channel 10a of the valve body 10. The moving body 20 is configured to be driven by water flow to move in the circulation channel 10a when water is introduced through the first water inlet 111 and the second water inlet 121, and to block one of the first water outlet 113 and the second water outlet 123 under the action of the fluid to change the rotation direction of the spraying arm 30. The fluid can be the fluid introduced into the valve body 10, such as washing water introduced through the first water inlet 111 and the second water inlet 121. The embodiments of the present disclosure do not need to additionally arrange a driving mechanism or additionally introduce fluid to achieve the blocking of one of the first water outlet 113 and the second water outlet 123 by the moving body 20.

[0059] In the embodiments of the present application, the mobile body 20 blocks one of the first water outlet 113 and the second water outlet 123 of the valve body 10 under the action of the fluid, so that the first spray cavity 31 and the second spray cavity 33 of the spray arm 30 can be switched to spray water, thereby meeting the use requirements of different spray cavities. Specifically, when water enters the first water inlet 111 and the second water inlet 121, if the first water outlet 113 corresponding to the first spray cavity 31 is blocked by the mobile body 20, the first spray hole 32 corresponding to the first spray cavity 31 cannot spray water, and at this time, the second water outlet 123 corresponding to the second spray cavity 33 is not blocked, so the second spray hole 34 corresponding to the second spray cavity 33 can spray water. When water enters the first water inlet 111 and the second water inlet 121, if the second water outlet 123 corresponding to the second spray cavity 33 is blocked by the mobile body 20, the second spray hole 34 corresponding to the second spray cavity 33 cannot spray water, and at this time, the first water outlet 113 corresponding to the first spray cavity 31 is not blocked, so the first spray hole 32 corresponding to the first spray cavity 31 can spray water.

[0060] Referring to Figure 4 , the first spray hole 32 connected with the first spray cavity 31 includes a first guide spray hole 321, and the spray direction of the first guide spray hole 321 is arranged at an angle with the rotation axis of the spray arm 30, which is used to drive the spray arm 30 to rotate when spraying water. Specifically, when the first guide spray hole 321 sprays water, the spray arm 30 rotates around the rotation axis of the spray arm 30 under the reverse driving force of the fluid sprayed by the first guide spray hole 321, so that the fluid can be sprayed to different positions in the dishwasher during the rotation of the spray arm 30, and the tableware placed at different positions can be cleaned. For example, Figure 4 The first guide spray hole 321 shown in the figure is located at the left end and / or the right end of the spray arm 30.

[0061] Referring to Figure 4 , the second spray hole 34 connected with the second spray cavity 33 includes a second guide spray hole 341, and the spray direction of the second guide spray hole 341 is arranged at an angle with the rotation axis of the spray arm 30, which is used to drive the spray arm 30 to rotate when spraying water. Specifically, when the second guide spray hole 341 sprays water, the spray arm 30 rotates around the rotation axis of the spray arm 30 under the reverse driving force of the fluid sprayed by the second guide spray hole 341, so that the fluid can be sprayed to different positions in the dishwasher during the rotation of the spray arm 30, and the tableware placed at different positions can be cleaned. For example, Figure 4 The second guide spray hole 341 shown in the figure is located at the left end and / or the right end of the spray arm 30.

[0062] The first guide spray hole 321 and the second guide spray hole 341 are used to drive the spray arm 30 to rotate in opposite directions when water is sprayed. In this way, the moving body 20 blocks one of the first water outlet 113 and the second water outlet 123 under the action of the fluid, and the first guide spray hole 321 and the second guide spray hole 341 can spray water respectively, change the rotating direction of the spray arm 30, realize different angle cleaning of the dishes in the dishwasher, and improve the cleaning effect. For example, Figure 4 It is shown that the first guide spray hole 321 is used to drive the spray arm 30 to rotate in the counterclockwise direction when water is sprayed, and the second guide spray hole 341 is used to drive the spray arm 30 to rotate in the clockwise direction when water is sprayed.

[0063] Referring to Figure 3 and Figure 4 The first spray cavity 31 and the second spray cavity 33 can extend along the length direction of the spray arm 30, and the first spray cavity 31 and the second spray cavity 33 can be distributed along the width direction of the spray arm 30. The plurality of first spray holes 32 connected by the first spray cavity 31 can be arranged at intervals along the length direction of the spray arm 30, and the plurality of second spray holes 34 connected by the second spray cavity 33 can be arranged at intervals along the length direction of the spray arm 30. Further, the plurality of first spray holes 32 and the plurality of second spray holes 34 can be arranged at intervals along the length direction of the spray arm 30.

[0064] The above-mentioned two water inlets, the circulation channel 10a, the first water inlet 111 and the second water inlet 121, are provided on the valve body 10, and both of the two water inlets are watered when the valve body 10 is watered, and both of the two water inlets are stopped when the valve body 10 is stopped. Compared with the valve body 10 provided with only a single water inlet, the two water inlets are beneficial to realize the movement of the moving body 20 along the predetermined route of the circulation channel 10a, and the structure is more balanced.

[0065] Furthermore, the valve body 10 is provided with only a single water inlet, and a balancing operation is required during use. The valve body 10 of the embodiment is provided with two water inlets, which is beneficial to balance of each part of the valve body 10 during use, and the balancing step of the valve body 10 can be omitted, and the valve body 10 is more convenient to use. For example, the spray arm 30 is fixed relative to the valve body 10. At this time, when the spray arm 30 rotates, the valve body 10 also rotates. The valve body 10 is provided with two water inlets, i.e., the first water inlet 111 and the second water inlet 121, which is beneficial to balance of each part of the valve body 10 during rotation. Compared with the valve body 10 provided with only a single water inlet and requiring balancing of the valve body to avoid one-sided wear during rotation, the two water inlets can omit the balancing step, and the valve body 10 is more convenient to use. The spray arm 30 and the valve body 10 can be fixed by welding, bonding, clamping or the like, and the fixing method is not limited. Furthermore, the first water inlet 111 and the second water inlet 121 can be approximately centrally symmetric about the central axis x of the valve body 10, so as to further balance each part of the valve body 10 during use and omit the balancing step of the valve body 10. The central axis x of the valve body 10 can be a line connecting the center points of each cross section of the valve body 10 from bottom to top,

[0066] In the direction of the central axis x of the valve body 10, the projection of the circulation channel 10a is approximately annular. For example, in the direction of the central axis x of the valve body 10, the projection of the circulation channel 10a can be approximately circular annular, elliptical annular or the like, and the projection is not limited. The design that the projection of the circulation channel 10a is approximately annular in the direction of the central axis x of the valve body 10 enables the water flow in the circulation channel 10a to move in a complete circle. For example, the water flow in the circulation channel 10a moves in a complete circle in the clockwise direction as shown. Figure 8 It should be noted that even if the circulation channel 10a has two water inlets, i.e., the first water inlet 111 and the second water inlet 121, the water flow entering through the two water inlets moves in the same direction in the circulation channel 10a. For example, the water flow entering through the first water inlet 111 and the second water inlet 121 moves in the clockwise direction in the circulation channel 10a.

[0067] It should be noted that since the moving body 20 is driven by the water flow to move in the circulation channel 10a, the predetermined route of the moving body 20 in the circulation channel 10a is approximately consistent with the movement direction of the water flow in the circulation channel 10a. For example, the water flow in the circulation channel 10a moves in the clockwise direction as shown, and the predetermined route of the moving body 20 is in the clockwise direction of the circulation channel 10a. Figure 8

[0068] ​The inner diameter of the circulation channel 10a is greater than the outer diameter of the moving body 20, so as to avoid the moving body 20 from being stuck when moving in the circulation channel 10a, and to ensure the smooth movement of the moving body 20. Further, the inner diameter of the circulation channel 10a can be 1-2 times of the outer diameter of the moving body 20, so as to reduce the size of the circulation channel 10a while ensuring the smooth movement of the moving body 20 in the circulation channel 10a. The inner diameter of each part of the circulation channel 10a can be substantially constant along the circumference of the circulation channel 10a, so as to facilitate the moving body 20 to move along the predetermined route in the circulation channel 10a.

[0069] The moving body 20 can be substantially spherical, so as to facilitate the smooth movement of the moving body 20 in the circulation channel 10a. The inner diameter of the first water inlet 111, the second water inlet 121, the first water outlet 113 and the second water outlet 123 is less than the outer diameter of the moving body 20, so as to avoid the moving body 20 from deviating from the predetermined route.

[0070] Referring to Figures 5 to 8 The first water inlet 111, the first water outlet 113, the second water inlet 121 and the second water outlet 123 are sequentially arranged along the circumference of the circulation channel 10a. In this way, when the valve body 10 is supplied with water, i.e., when the first water inlet 111 and the second water inlet 121 are both supplied with water, compared with the case where the circulation channel 10a is provided with only a single water inlet and the water supplied through the single water inlet drives the moving body 20 at different positions to move, the arrangement of multiple water inlets can shorten the action path of the moving body 20, and is more conducive to driving the moving body 20 to move.

[0071] Due to the whole-circle movement of the water flow in the circulation channel 10a, the direction of the water flow in the circulation channel 10a and the predetermined route of the moving body 20 in the circulation channel 10a can be consistent with the circumferential arrangement direction of the first water inlet 111-first water outlet 113-second water inlet 121-second water outlet 123; for example, Figure 8 The first water inlet 111-first water outlet 113-second water inlet 121-second water outlet 123 shown in the above embodiment are arranged clockwise along the circumference of the circulation channel 10a, and the direction of the water flow in the circulation channel 10a and the predetermined route of the moving body 20 in the circulation channel 10a are also clockwise.

[0072] Referring to Figure 8, along the water flow direction, the distance between the first water inlet 111 and the first water outlet 113 is greater than the distance between the first water outlet 113 and the second water inlet 121. In this way, when the first water inlet 111 and the second water inlet 121 stop water inflow, and the accumulated water in the valve body 10 is drained through the first water inlet 111 and the second water inlet 121, since the first water outlet 113 is closer to the second water inlet 121, if the moving body 20 is located at the first water outlet 113 at this time, the moving body 20 is more easily driven by the water flow of the closer second water inlet 121, that is, the moving body 20 at the first water outlet 113 is more easily moved towards the direction of the second water inlet 121 rather than the direction of the first water inlet 111, which is consistent with the predetermined route of the moving body 20, and is conducive to the movement of the moving body 20 along the predetermined route.

[0073] Referring to Figure 8 , along the water flow direction, the distance between the second water inlet 121 and the second water outlet 123 is greater than the distance between the second water outlet 123 and the first water inlet 111. In this way, when the first water inlet 111 and the second water inlet 121 stop water inflow, and the accumulated water in the valve body 10 is drained through the first water inlet 111 and the second water inlet 121, since the second water outlet 123 is closer to the first water inlet 111, if the moving body 20 is located at the second water outlet 123 at this time, the moving body 20 is more easily driven by the water flow of the closer first water inlet 111, that is, the moving body 20 at the second water outlet 123 is more easily moved towards the direction of the first water inlet 111 rather than the direction of the second water inlet 121, which is consistent with the predetermined route of the moving body 20, and is conducive to the movement of the moving body 20 along the predetermined route.

[0074] Referring to Figure 8 , the circulation channel 10a further has a first low-positioning portion 112 and a second low-positioning portion 122, and the first water inlet 111, the first low-positioning portion 112, the first water outlet 113, the second water inlet 121, the second low-positioning portion 122, and the second water outlet 123 are sequentially arranged along the circumference of the circulation channel 10a.

[0075] The moving body 20 is configured to be driven by the water flow and block the first water outlet 113 when the moving body 20 is located at the first low-positioning portion 112 and the first water inlet 111 and the second water inlet 121 are inflowing, and to be driven by the water flow and block the second water outlet 123 when the moving body 20 is located at the second low-positioning portion 122 and the first water inlet 111 and the second water inlet 121 are inflowing. In this way, it can be clearly determined whether the moving body 20 specifically blocks the first water outlet 113 or the second water outlet 123, so that the first water outlet 113 and the second water outlet 123 are both likely to be blocked, thereby realizing the switching of the spray cavity and the change of the rotation direction of the spray arm 30.

[0076] In the direction of gravity, the first water inlet 111 is lower than the first water outlet 113, and the second water inlet 121 is lower than the second water outlet 123. When the first water inlet 111 and the second water inlet 121 stop water inflow, the moving body 20 loses the effect of fluid and falls to the first low position 112 or the second low position 122. The first low position 112 and the second low position 122 can be low positions in the circulating channel 10a. When the first water inlet 111 and the second water inlet 121 stop water inflow, and the accumulated water in the circulating channel 10a is discharged through the first water inlet 111 and the second water inlet 121, the moving body 20, after moving to the first low position 112 or the second low position 122, is not easily driven further by the fluid due to the low position of the first low position 112 and the second low position 122, and thus can be stably kept in the first low position 112 or the second low position 122.

[0077] In the embodiments of the present application, when the moving body 20 is located at the first low position 112 and the first water inlet 111 and the second water inlet 121 are inflowing water, the moving body 20 is driven by the water flow and blocks the first water outlet 113. When the first water inlet 111 and the second water inlet 121 stop water inflow, the moving body 20 loses the effect of fluid and falls from the first water outlet 113 to the second low position 122 through the second water inlet 121. When the moving body 20 is located at the second low position 122 and the first water inlet 111 and the second water inlet 121 are inflowing water, the moving body 20 is driven by the water flow and blocks the second water outlet 123. When the first water inlet 111 and the second water inlet 121 stop water inflow, the moving body 20 loses the effect of fluid and falls from the second water outlet 123 to the first low position 112 through the first water inlet 111.

[0078] The spraying device 1 can be in communication with a washing pump during use, and whether the first water inlet 111 and the second water inlet 121 are inflowing water or stopping water inflow can be controlled by starting or stopping the washing pump. Specifically, when the washing pump is started, the first water inlet 111 and the second water inlet 121 are both inflowing water, and when the washing pump is stopped, the first water inlet 111 and the second water inlet 121 are both stopping water inflow.

[0079] The use process of the embodiments of the present application can be as follows: If the washing pump is started, the first water inlet 111 and the second water inlet 121 are inflowing water, the moving body 20 moves to the first water outlet 113 under the action of fluid and blocks the first water outlet 113, at this time, the water inflow in the valve body 10 is discharged through the second water outlet 123. If the washing pump is stopped, the first water inlet 111 and the second water inlet 121 stop water inflow, the accumulated water in the valve body 10 is discharged through the first water inlet 111 and the second water inlet 121, and the moving body 20 loses the effect of fluid and falls to the second low position 122 through the second water inlet 121 under the action of gravity.

[0080] When the washing pump is started again, the first water inlet 111 and the second water inlet 121 are supplied with water, and the moving body 20 moves from the second low position 122 to the second water outlet 123 under the action of the fluid and blocks the second water outlet 123. At this time, the water in the valve body 10 is discharged through the first water outlet 113. If the washing pump is stopped, the first water inlet 111 and the second water inlet 121 stop supplying water, the accumulated water in the valve body 10 is discharged through the first water inlet 111 and the second water inlet 121, and the moving body 20 loses the action of the fluid and falls back to the first low position 112 from the second water outlet 123 through the first water inlet 111 under the action of gravity. Through repeated starting and stopping of the washing pump, the first water outlet 113 and the second water outlet 123 can be alternately discharged.

[0081] The first low position 112 and the second low position 122 can be centrally symmetric about the central axis x of the valve body 10, and the first water outlet 113 and the second water outlet 123 can be centrally symmetric about the central axis x of the valve body 10, so as to facilitate the balance of each part of the valve body 10 during use, and omit the balancing step of the valve body 10.

[0082] Referring to Figures 5 to 8 The circulation channel 10a includes a first flow guide pipe 11 and a second flow guide pipe 12. The first flow guide pipe 11 has a first water inlet 111, a first low position 112, and a first water outlet 113. The second flow guide pipe 12 has a second water inlet 121, a second low position 122, and a second water outlet 123. The communication position of the first flow guide pipe 11 and the second flow guide pipe 12 is below the second water outlet 123, and the communication position of the second flow guide pipe 12 and the first flow guide pipe 11 is below the first water outlet 113. The above design that the communication position of the first flow guide pipe 11 and the second flow guide pipe 12 is below the second water outlet 123 is beneficial for the moving body 20 at the second water outlet 123 to fall into the first flow guide pipe 11 when the first water inlet 111 and the second water inlet 121 stop supplying water and lose the action of the fluid, so as to realize the movement of the moving body 20 according to the predetermined route. The above design that the communication position of the second flow guide pipe 12 and the first flow guide pipe 11 is below the first water outlet 113 is beneficial for the moving body 20 at the first water outlet 113 to fall into the second flow guide pipe 12 when the first water inlet 111 and the second water inlet 121 stop supplying water and lose the action of the fluid, so as to realize the movement of the moving body 20 according to the predetermined route.

[0083] The first flow guide pipe 11 and the second flow guide pipe 12 are centrally symmetric about the central axis x of the valve body 10. Further, the entire valve body 10 can be designed to be centrally symmetric about the central axis x, so as to facilitate the balance of each part of the valve body 10 during use, and omit the balancing step of the valve body 10.

[0084] Referring to Figures 5 to 8The first flow guide pipe 11 comprises a first flow guide section 114 and a second flow guide section 115. The first end of the second flow guide section 115 along the water flow direction is connected to the last end of the first flow guide section 114 along the water flow direction. The last end of the second flow guide section 115 along the water flow direction is connected to the second flow guide pipe 12. The first low position 112 is located at the inner bottom wall of the joint of the first flow guide section 114 and the second flow guide section 115.

[0085] The first flow guide section 114 can be a descending pipe gradually descending along the water flow direction. The second flow guide section 115 can be an ascending pipe gradually ascending along the water flow direction. At this time, the first low position 112 is located at the concave part of the joint of the first flow guide section 114 and the second flow guide section 115, so that the moving body 20 is not easily deviated from the first low position 112 by the small flow of the accumulated water in the circulating channel 10a when the first water inlet 111 and the second water inlet 121 stop water inflow.

[0086] It should be noted that in actual design, the descending degree of the first flow guide section 114 and the ascending degree of the second flow guide section 115 can be reasonably designed, so that the concave degree of the joint of the first flow guide section 114 and the second flow guide section 115 is appropriate, so that the moving body 20 can stably stay at the first low position 112 of the concave part when the first water inlet 111 and the second water inlet 121 stop water inflow, and can move from the first low position 112 to the first water outlet 113 under the action of water flow when the first water inlet 111 and the second water inlet 121 inflow.

[0087] The first water inlet 111 can be located at the first flow guide section 114. In this way, when the first water inlet 111 inflows, the water inflow at the first water inlet 111 can flow downward under the guidance of the first flow guide section 114 to take away the moving body 20 at the first low position 112 at the last end of the first flow guide section 114. It can be understood that the first water inlet 111 can be located at the first end of the first flow guide section 114, or between the first end and the last end of the first flow guide section 114.

[0088] It should be noted that if the inner diameter of the circulating channel 10a is greater than the outer diameter of the moving body 20 or the inner diameter of the second flow guide section 115 is greater than the outer diameter of the moving body 20, the moving body 20 can be at least partially made of a buoyant material, so that when the first water inlet 111 and the second water inlet 121 inflow, the moving body 20 can move along the inner top wall of the second flow guide section 115 under the action of the fluid thrust and buoyancy, so as to gradually ascend from the first low position 112 at the bottom end of the second flow guide section 115 to the first water outlet 113 at the top end under the guidance of the second flow guide section 115.

[0089] Referring to Figure 5The first guide pipe 11 may further include a first water outlet section 116. That is, the first guide pipe 11 includes a first guide section 114, a second guide section 115, and a first water outlet section 116. The first water outlet section 116 gradually rises from the end of the second guide section 115 along the water flow direction, and the first water outlet 113 is located at the end of the first water outlet section 116 along the water flow direction. The first water outlet section 116 protrudes from the second guide section 115, and the valve body 10 can be connected to the spray arm 30 via the first water outlet section 116, making the connection operation more convenient. For example, see Figure 2 A first connection portion 35 may be provided on a side of the spray arm 30 close to the valve body 10 (e.g., the lower surface of the spray arm 30 ), and the first spray chamber 31 is connected to the first water outlet section 116 via the first connection portion 35 . The first connection portion 35 may be formed to protrude from the lower surface of the spray arm 30 , and the first connection portion 35 may be sleeved around the periphery of the first water outlet section 116 to achieve connection and communication with the first water outlet section 116 . Of course, the first water outlet section 116 may also be sleeved around the periphery of the first connection portion 35 to achieve connection and communication with the first connection portion 35 , and this is not limited thereto.

[0090] See Figure 5 The first water outlet section 116 includes a first guide portion 1161, which gradually rises from the end of the second guide section 115 along the direction of water flow. The first guide portion 1161 includes a first tube wall 1162 and a second tube wall 1163 distributed along the circumference of the first guide portion 1161. The first tube wall 1162 connects to the second guide section 115, and the second tube wall 1163 connects to the second guide tube 12. Along the direction of water flow, the first tube wall 1162 extends obliquely toward the second guide tube 12. This allows the first water outlet 113 of the first water outlet section 116 to be closer to the second guide tube 12. This facilitates the movement of the mobile body 20 along a predetermined path by allowing it to fall from the first water outlet 113 into the second guide tube 12 when water stops flowing into the first and second water inlets 111, 121. Among them, the first tube wall 1162 is connected to the second guide section 115, so when the moving body 20 enters the first guide part 1161 from the second guide section 115, it can move roughly under the guidance of the first tube wall 1162 close to the second guide section 115, and then can be guided to the first water outlet 113 by the first tube wall 1162.

[0091] See Figure 8Along the central axis x of the valve body 10, the center of the projection of the first water outlet 113 can be located within the second flow conduit 12. Thus, when water stops flowing through the first and second water inlets 111, 121, the moving body 20 loses its fluid interaction and, under the action of gravity, can fall back from the first water outlet 113 into the second flow conduit 12. Furthermore, along the central axis x of the valve body 10, the entire projection of the first water outlet 131 can be located within the second flow conduit 12, ensuring that when water stops flowing through the first and second water inlets 111, 121, the moving body 20 loses its fluid interaction and, under the action of gravity, can fall back from the first water outlet 113 into the second flow conduit 12.

[0092] In the direction of water flow, the second tube wall 1163 extends along the central axis x of the valve body 10. When the mobile body 20 falls back into the second flow conduit 12 from the first water outlet section 116, it can move generally under the guidance of the second tube wall 1163 adjacent to the second flow conduit 12, which facilitates the mobile body 20's return to the second flow conduit 12.

[0093] Along the water flow direction, the first tube wall 1162 extends obliquely toward the second flow guide tube 12, while the second tube wall 1163 extends along the central axis x of the valve body 10. This allows the diameter of the first guide portion 1161 to gradually decrease along the water flow direction, facilitating the mobile body 20 to block the first water outlet 113 when it reaches it.

[0094] See Figure 5 The first outlet section 116 may further include a first connecting portion 1164. Specifically, the first outlet section 116 includes a first guide portion 1161 and a first connecting portion 1164. The first connecting portion 1164 gradually rises from the end of the first guide portion 1161 in the direction of water flow. Along the direction of water flow, the first connecting portion 1164 is a cylindrical tube extending along the central axis x of the valve body 10. This facilitates connection of the valve body 10 to the spray arm 30 (e.g., the first connecting portion 35) via the first connecting portion 1164.

[0095] It should be noted that the first flow guide pipe 11 may also not include the first water outlet section 116. In this case, the first water outlet 113 may be located at the end of the second flow guide section 115 away from the first flow guide section 114, and at the top of the second flow guide section 115. That is, the end of the second flow guide section 115 away from the first flow guide section 114 is the terminal end of the first flow guide pipe 11. When water enters the first water inlet 111 and the second water inlet 121, the mobile body 20 can be guided by the second flow guide section 115 to gradually rise from the first low position 112 at the bottom end of the second flow guide section 115 to the first water outlet 113 at the top end.

[0096] The first flow guide section 114 is connected to the second flow guide pipe 12 at the head end in the water flow direction. That is, the first flow guide section 114 is substantially the initial section of the first flow guide pipe 11, and the first flow guide pipe 11 can be substantially composed of the first flow guide section 114, the second flow guide section 115 and the first water outlet section 116, or can be substantially composed of the first flow guide section 114 and the second flow guide section 115.

[0097] It should be noted that if the head end of the first flow guide section 114 is connected to the second flow guide section 12, the first water inlet 111 is located at the head end of the first flow guide section 114, and the communication position of the head end of the first flow guide pipe 11 and the second flow guide pipe 12 is located below the second water outlet 123. At this time, the first water inlet 111 can be located on the bottom wall or the side wall of the first flow guide section 114, so that the first water inlet 111 and the second water outlet 123 are staggered in the radial direction of the circulation channel 10a, avoiding affecting the normal flow of water.

[0098] The first flow guide section 114 and the second flow guide section 115 are smoothly connected, so as to facilitate the smooth movement of the moving body 20 between the first flow guide section 114 and the second flow guide section 115. The second flow guide section 115 and the first water outlet section 116 are smoothly connected, so as to facilitate the smooth movement of the moving body 20 between the second flow guide section 115 and the first water outlet section 116. The first flow guide pipe 11 and the second flow guide pipe 12 are smoothly connected, so as to facilitate the smooth movement of the moving body 20 between the first flow guide pipe 11 and the second flow guide pipe 12.

[0099] Referring to Figures 5 to 11 The second flow guide pipe 12 includes a third flow guide section 124 and a fourth flow guide section 125. The fourth flow guide section 125 is connected to the end of the third flow guide section 124 in the water flow direction, and the fourth flow guide section 125 is connected to the first flow guide pipe 11 at the end in the water flow direction. The second low position 122 is located on the inner bottom wall at the joint of the third flow guide section 124 and the fourth flow guide section 125.

[0100] The third flow guide section 124 can be a descending pipe gradually descending in the water flow direction, and the fourth flow guide section 125 can be an ascending pipe gradually ascending in the water flow direction. At this time, the second low position 122 is located in the concave part at the joint of the third flow guide section 124 and the fourth flow guide section 125, so that the moving body 20 is not easy to deviate from the second low position 122 under the small flow of water discharged in the circulation channel 10a when the first water inlet 111 and the second water inlet 121 stop water inflow.

[0101] It should be noted that in actual design, the descending degree of the third flow guide section 124 and the ascending degree of the fourth flow guide section 125 can be reasonably designed so that the concave degree at the joint of the third flow guide section 124 and the fourth flow guide section 125 is appropriate, so that the mobile body 20 can stably stay at the second low position 122 at the concave position when the first water inlet 111 and the second water inlet 121 stop water inflow, and can be driven by water flow to move from the second low position 122 to the second water outlet 123 when the first water inlet 111 and the second water inlet 121 inflow.

[0102] The second water inlet 121 can be located at the third flow guide section 124. In this way, when the second water inlet 121 inflows, the water inflow at the second water inlet 121 can flow downward under the guidance of the third flow guide section 124 to take away the mobile body 20 at the second low position 122 at the end of the third flow guide section 124. It can be understood that the second water inlet 121 can be located at the beginning of the third flow guide section 124, or between the beginning and the end of the third flow guide section 124.

[0103] It should be noted that if the inner diameter of the circulation channel 10a is greater than the outer diameter of the mobile body 20 or the inner diameter of the fourth flow guide section 125 is greater than the outer diameter of the mobile body 20, the mobile body 20 can be at least partially made of a buoyant material, so that when the first water inlet 111 and the second water inlet 121 inflow, the mobile body 20 can move along the inner top wall of the fourth flow guide section 125 under the action of the fluid thrust and buoyancy, so as to gradually rise from the second low position 122 at the bottom end of the fourth flow guide section 125 to the second water outlet 123 at the top end under the guidance of the fourth flow guide section 125.

[0104] Referring to Figure 11 The second flow guide pipe 12 can further include a second water outlet section 126, that is, the second flow guide pipe 12 includes the third flow guide section 124, the fourth flow guide section 125 and the second water outlet section 126, the second water outlet section 126 gradually rises from the end of the fourth flow guide section 125 in the water flow direction, and the second water outlet 123 is located at the end of the second water outlet section 126 in the water flow direction. The second water outlet section 126 protrudes from the fourth flow guide section 125, and the valve body 10 can be connected with the spray arm 30 through the second water outlet section 126, which is more convenient for connection operation. For example, referring to Figure 7A second connection portion 36 may be provided on the side of the spray arm 30 near the valve body 10 (e.g., the lower surface of the spray arm 30 ), and the second spray chamber 33 communicates with the second water outlet section 126 via the second connection portion 36 . The second connection portion 36 may be formed as a protrusion from the lower surface of the spray arm 30 , and may be sleeved around the outer periphery of the second water outlet section 126 to achieve connection and communication with the second water outlet section 126 . Of course, the second water outlet section 126 may also be sleeved around the outer periphery of the second connection portion 36 to achieve connection and communication with the second connection portion 36 , and this is not limited thereto. The first connection portion 35 and the second connection portion 36 may be symmetrically arranged.

[0105] See Figure 8 The second water outlet section 126 includes a second guide portion 1261, which gradually rises from the end of the fourth guide section 125 along the direction of water flow. The second guide portion 1261 includes a third tube wall 1262 and a fourth tube wall 1263 distributed along the circumference of the second guide portion 1261. The third tube wall 1262 connects to the fourth guide section 125, and the fourth tube wall 1263 connects to the first guide tube 11. Along the direction of water flow, the third tube wall 1262 extends obliquely toward the first guide tube 11. This allows the second water outlet 123 of the second water outlet section 126 to be closer to the first guide tube 11. This facilitates the movement of the mobile body 20 along a predetermined path by allowing it to fall back from the second water outlet 123 into the first guide tube 11 when water stops flowing into the first and second water inlets 111, thereby facilitating the movement of the mobile body 20 along the predetermined path. Among them, the third tube wall 1262 is connected to the fourth guide section 125, so when the moving body 20 enters the second guide part 1261 from the fourth guide section 125, it can move roughly under the guidance of the third tube wall 1262 close to the fourth guide section 125, and then can be guided to the second water outlet 123 by the third tube wall 1262.

[0106] See Figure 8 Along the central axis x of the valve body 10, the center of the projection of the second water outlet 123 can be located within the first flow conduit 11. Thus, when water stops flowing through the first and second water inlets 111, 121, the moving body 20 loses its fluid interaction and, under the action of gravity, can fall back from the second water outlet 123 into the first flow conduit 11. Furthermore, along the central axis x of the valve body 10, the entire projection of the first water outlet 131 can be located within the first flow conduit 11, ensuring that when water stops flowing through the first and second water inlets 111, 121, the moving body 20 loses its fluid interaction and, under the action of gravity, can fall back from the second water outlet 123 into the first flow conduit 11.

[0107] The fourth pipe wall 1263 extends along the central axis x of the valve body 10 in the water flow direction. When the moving body 20 falls into the first flow guide pipe 11 from the second water outlet section 126, the moving body 20 can move approximately along the guide of the fourth pipe wall 1263 close to the first flow guide pipe 11, which is conducive to the falling of the moving body 20 into the first flow guide pipe 11.

[0108] The third pipe wall 1262 extends in the water flow direction and inclines towards the first flow guide pipe 11, and the fourth pipe wall 1263 extends along the central axis x of the valve body 10 in the water flow direction. In this way, the caliber of the second guide part 1261 gradually decreases in the water flow direction, which is conducive to the sealing of the second water outlet 123 by the moving body 20 when moving to the second water outlet 123.

[0109] Referring to Figure 8 The second water outlet section 126 can also include a second connecting part 1264, that is, the second water outlet section 126 includes the second guide part 1261 and the second connecting part 1264. The second connecting part 1264 gradually rises from the end of the second guide part 1261 in the water flow direction, and in the water flow direction, the second connecting part 1264 extends along the central axis x of the valve body 10 in the form of a cylindrical pipe. In this way, the valve body 10 can be connected to the spray arm 30 (for example, the second connecting part 36) through the second connecting part 1264.

[0110] It should be noted that the second flow guide pipe 12 can also not include the second water outlet section 126. In this case, the second water outlet 123 can be located at the top of the fourth flow guide section 125 away from the third flow guide section 124. That is, the end of the fourth flow guide section 125 away from the third flow guide section 124 is the end of the second flow guide pipe 12. When water flows into the first water inlet 111 and the second water inlet 121, the moving body 20 can gradually rise from the second low position 122 at the bottom end of the fourth flow guide section 125 to the second water outlet 123 at the top end under the guidance of the fourth flow guide section 125.

[0111] The third flow guide section 124 is connected to the first flow guide pipe 11 in the water flow direction. That is, the third flow guide section 124 is approximately the starting section of the second flow guide pipe 12. In this case, the second flow guide pipe 12 can be approximately composed of the third flow guide section 124, the fourth flow guide section 125, and the second water outlet section 126, or can be approximately composed of the third flow guide section 124 and the fourth flow guide section 125.

[0112] It should be noted that if the first end of the third flow guide section 124 is connected to the first flow guide pipe 11, the second water inlet 121 is located at the first end of the third flow guide section 124, and the communication position of the first end of the second flow guide pipe 12 with the first flow guide pipe 11 is located below the first water outlet 113, at this time, the second water inlet 121 can be located at the bottom wall or the side wall of the third flow guide section 124, so that the second water inlet 121 is staggered with the first water outlet 113 in the radial direction of the circulation channel 10a, avoiding affecting the normal flow of water.

[0113] Among them, the third flow guide section 124 and the fourth flow guide section 125 are smoothly connected, so as to facilitate the smooth movement of the moving body 20 between the third flow guide section 124 and the fourth flow guide section 125. The fourth flow guide section 125 and the second water outlet section 126 are smoothly connected, so as to facilitate the smooth movement of the moving body 20 between the fourth flow guide section 125 and the second water outlet section 126.

[0114] Referring to Figure 6 , the valve body 10 further comprises a water inlet pipe 13, which can be connected between the circulation channel 10a by welding, clamping or the like. This is not limited.

[0115] The water inlet pipe 13 comprises a main pipe 131, a first branch pipe 132 and a second branch pipe 133, the first branch pipe 132 and the second branch pipe 133 are in communication with the main pipe 131, the first branch pipe 132 is in communication with the first water inlet 111 at one end away from the main pipe 131, and the second branch pipe 133 is in communication with the second water inlet 121 at one end away from the main pipe 131. The first branch pipe 132 and the second branch pipe 133 can be connected with the external water supply source through the same main pipe 131, which can simplify the connection pipeline with the external water supply source.

[0116] Referring to Figure 10 , along the central axis x direction of the valve body 10, the projection of the circulation channel 10a is surrounded by the projection of the main pipe 131. In this way, the structure of the valve body 10 can be more compact, which is beneficial to compress the size of the valve body 10.

[0117] Referring to ​ and ​ , the first branch pipe 132 is tangential to the water inlet of the valve body 10 and is connected. In this way, the water flowing into the first flow guide pipe 11 from the first branch pipe 132 can be substantially directed to the first water outlet 113, realizing the control of the water flow direction in the first flow guide pipe 11, such as realizing the water flow direction of the first flow guide pipe 11 in the clockwise direction as shown. ​

[0118] ​The second branch pipe 133 is tangential to the water inlet of the valve body 10 and is connected therewith. In this way, the water flowing into the second flow guide pipe 12 from the second branch pipe 133 can flow towards the second water outlet 123, thereby controlling the water flow direction in the second flow guide pipe 12, such as controlling the water flow direction of the second flow guide pipe 12 to be along the clockwise direction shown. ​

[0119] It should be noted that the first branch pipe 132 can also extend along the radial direction of the circulation channel 10a, and the second branch pipe 133 can also extend along the radial direction of the circulation channel 10a, so as to simplify the design difficulty of the first branch pipe 132 and the second branch pipe 133. At this time, the water flow direction in the first flow guide pipe 11 and the second flow guide pipe 12 can be controlled by bending the circulation channel 10a and the like. For example, the first water inlet 111 is located at the first flow guide section 114, so that the fluid flowing into the first flow guide pipe 11 through the first water inlet 111 flows along the downward direction of the first flow guide section 114; the second water inlet 121 is located at the third flow guide section 124, so that the fluid flowing into the second flow guide pipe 12 through the second water inlet 121 flows along the downward direction of the second flow guide section 124.

[0120] Referring to ​ ​ The water inlet pipe 13 is located below the circulation channel 10a. In this way, when the water inlet pipe 13 is in water inlet, the fluid moves upward into the circulation channel 10a, and when the water inlet pipe 13 stops water inlet, the accumulated water in the circulation channel 10a will be discharged downward to the water inlet pipe 13, which is beneficial to timely discharge of the accumulated water in the circulation channel 10a. The first branch pipe 132 can extend upward, and the second branch pipe 133 can also extend upward, so as to further facilitate the timely discharge of the accumulated water in the circulation channel 10a when the water inlet stops.

[0121] The shapes of the first branch pipe 132 and the second branch pipe 133 can be substantially the same, so that the first branch pipe 132 and the second branch pipe 133 can be produced by the same mold, and the water inlets of the first water inlet 111 and the second water inlet 121 can be substantially balanced, which is beneficial to the balance of the valve body 10. For example, the diameters of the first branch pipe 132 and the second branch pipe 133 can be substantially the same, the bending degrees of the first branch pipe 132 and the second branch pipe 133 can be substantially the same, and the like, which are not limited herein.

[0122] The embodiment of the present application also provides a dishwasher, which comprises the above-mentioned spraying device 1, a shell and an inner container. The inner container is arranged in the shell and has a washing cavity. The spray arm 30 is located in the washing cavity, so as to clean the tableware in the washing cavity.

[0123] ​​In the description of the present application, it is necessary to understand that the terms "first", "second" and the like are only used for the purpose of description and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise stated, "a plurality of" means at least two, for example, two, three, four, and the like. The association relationship of the associated objects is described, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. The character " / " generally represents a "or" relationship between the associated objects before and after it.

[0124] The above only discloses the preferred embodiments of the present application, of course, cannot limit the scope of the right of the present application, therefore, the equivalent changes made by the claims of the present application, still belongs to the scope covered by the present application.

Claims

1. A spray device for a dishwasher, characterized in that: include: a spray arm, the spray arm comprising a first spray chamber, a first spray hole communicating with the first spray chamber, a second spray chamber, and a second spray hole communicating with the second spray chamber, wherein a driving direction of the first spray hole is opposite to a driving direction of the second spray hole; a valve body comprising a circulation channel, the circulation channel having a first water inlet, a first water outlet, a second water inlet, and a second water outlet, the first spray chamber being in communication with the first water outlet, and the second spray chamber being in communication with the second water outlet; and A movable body is movably arranged in the circulation channel of the valve body, and the movable body is configured as follows: when water enters the first water inlet and the second water inlet, the movable body is driven by the water flow to move in the circulation channel, and under the action of the fluid, blocks one of the first water outlet and the second water outlet to change the rotation direction of the spray arm.

2. The spraying device according to claim 1, characterized in that The circulation channel further has a first low position and a second low position, and the first water inlet, the first low position, the first water outlet, the second water inlet, the second low position and the second water outlet are sequentially arranged along the circumference of the circulation channel; In which, the moving body is configured as follows: when the moving body is located at the first low position and water is flowing into the first water inlet and the second water inlet, the moving body is driven by the water flow and blocks the first water outlet; when the moving body is located at the second low position and water is flowing into the first water inlet and the second water inlet, the moving body is driven by the water flow and blocks the second water outlet.

3. The spraying device according to claim 2, characterized in that In the direction of gravity, the first water inlet is lower than the first water outlet, and the second water inlet is lower than the second water outlet. When the first water inlet and the second water inlet stop taking in water, the moving body loses the effect of the fluid and falls back to the first low position or the second low position.

4. The spraying device according to claim 2, characterized in that The first water inlet and the second water inlet are centrally symmetrical about the central axis of the valve body; And / or, the first low position and the second low position are centrally symmetrical about the central axis of the valve body; And / or, the first water outlet and the second water outlet are centrally symmetrical about the central axis of the valve body.

5. The spraying device according to claim 1, characterized in that The circulation channel comprises: a first flow guide pipe, the first flow guide pipe having the first water inlet, the first low position, and the first water outlet; and a second flow guide pipe, the second flow guide pipe having the second water inlet, the second low position and the second water outlet; The connecting position between the first flow guiding pipe and the second flow guiding pipe is located below the second water outlet, and the connecting position between the second flow guiding pipe and the first flow guiding pipe is located below the first water outlet.

6. The spraying device according to claim 5, characterized in that: The first flow guide tube and the second flow guide tube are centrally symmetrical about the central axis of the valve body.

7. The spraying device according to claim 5, characterized in that: The first flow guide tube includes: a first flow guide section; and A second guide section, the head end of the second guide section along the water flow direction is connected to the end of the first guide section along the water flow direction, the end of the second guide section along the water flow direction is connected to the second guide pipe, and the first low position is located at the inner bottom wall where the first guide section and the second guide section meet.

8. The spraying device according to claim 7, characterized in that: The first guide section is a downcomer that gradually descends along the water flow direction, and the second guide section is a riser that gradually rises along the water flow direction.

9. The spraying device according to claim 7, characterized in that: The first flow guide tube further includes: The first water outlet section gradually rises from the end of the second guide section along the water flow direction, and the first water outlet is located at the end of the first water outlet section along the water flow direction.

10. The spraying device according to any one of claims 5 to 9, characterized in that: The second flow guide tube includes: a third guide section; and The fourth guide section, the head end of the fourth guide section along the water flow direction is connected to the end of the third guide section along the water flow direction, the end of the fourth guide section along the water flow direction is connected to the first guide tube, and the second low position is located at the inner bottom wall where the third guide section and the fourth guide section meet.

11. The spraying device according to claim 10, characterized in that: The third diversion section is a downcomer that gradually descends along the direction of water flow, and the fourth diversion section is a riser that gradually rises along the direction of water flow.

12. The spraying device according to claim 10, characterized in that The second flow guide pipe further includes: The second water outlet section gradually rises from the end of the fourth guide section along the water flow direction, and the second water outlet is located at the end of the second water outlet section along the water flow direction.

13. The spraying device according to claim 1, characterized in that A first connection portion is provided on a side of the spray arm close to the valve body, and the first spray chamber is connected to the first water outlet section through the first connection portion; And / or, a second connection portion is further provided on a side of the spray arm close to the valve body, and the second spray chamber is connected to the second water outlet section through the second connection portion; And / or, the first connecting portion and the second connecting portion are symmetrically arranged.

14. The spraying device according to claim 1, characterized in that The first water inlet, the first water outlet, the second water inlet and the second water outlet are sequentially arranged along the circumference of the circulation channel; In which, along the water flow direction, the distance between the first water inlet and the first water outlet is greater than the distance between the first water outlet and the second water inlet; and / or, along the water flow direction, the distance between the second water inlet and the second water outlet is greater than the distance between the second water outlet and the first water inlet.

15. The spraying device according to claim 1, characterized in that The valve body further comprises: A water inlet pipe, comprising a main pipe, a first branch pipe and a second branch pipe, wherein the first branch pipe and the second branch pipe are both connected to the main pipe, an end of the first branch pipe away from the main pipe is connected to the first water inlet, and an end of the second branch pipe away from the main pipe is connected to the second water inlet.

16. The spraying device according to claim 15, characterized in that Along the central axis of the valve body, the projection of the circulation channel is arranged around the projection of the main pipe.

17. The spraying device according to claim 1, characterized in that The moving body is a sphere, and the inner diameters of the first water inlet, the second water inlet, the first water outlet, and the second water outlet are all smaller than the outer diameter of the moving body.

18. The spraying device according to claim 1, characterized in that The valve body is fixed relative to the spray arm.

19. A dishwasher, characterized in that: It comprises the spray device, shell and inner tank according to any one of claims 1 to 18, wherein the inner tank is arranged in the shell and has a washing cavity, and the spray arm is located in the washing cavity.

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