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] This application relates to the technical field of dishwasher equipment, and particularly to a spraying device and a dishwasher. Background Art

[0002] With the improvement of the material living standard, dishwashers that can liberate hands are gradually becoming a standard for quality life. Compared with traditional hand washing, dishwashers have advantages such as clean washing, sterilization, water and labor saving. Dishwashers generally adopt a spraying washing method. Driven by a washing pump, water flows through a rotating spray arm to spray and wash the surface of tableware. With the improvement of user requirements, people are looking forward to the emergence of new dishwashers with comprehensively improved performance. Summary of the Utility Model

[0003] The inventors of this application have found through research that by providing a plurality of spraying chambers on the spray arm, and different spraying chambers can be used to drive the spray arm to rotate in different directions when spraying water. In this way, by controlling the spraying of different spraying chambers of the spray arm, it is possible to wash the tableware at different angles, reduce the washing dead angle, and improve the washing effect. However, it is difficult to improve the spray arm to control the spraying of different spraying chambers.

[0004] In view of this, the embodiments of this application provide a spraying device and a dishwasher, which are used to improve the problem that it is difficult to improve the spray arm to control the spraying of different spraying chambers.

[0005] In a first aspect, the embodiments of this application provide a spraying device for a dishwasher, including:

[0006] A spray arm having a first spraying chamber, a first spraying hole communicating with the first spraying chamber, a second spraying chamber, and a second spraying hole communicating with the second spraying chamber, and the driving directions of the first spraying hole and the second spraying hole are opposite;

[0007] A valve body including a circulation channel having a first water inlet, a first water outlet, a second water inlet, and a second water outlet, the first spraying chamber communicates with the first water outlet, and the second spraying chamber communicates with the second water outlet; and,

[0008] A moving body movably disposed in the circulation channel of the valve body, and the moving body is configured to: when water enters from the first water inlet and the second water inlet, the moving body is driven by the water flow to move in the circulation channel, and under the action of the fluid, block one of the first water outlet and the second water outlet to change the rotation direction of the spray arm.

[0009] In some of these embodiments, 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 circumferential direction of the circulation channel;

[0010] Wherein, the moving body is configured such that when the moving body is at the first low position and water enters 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 at the second low position and water enters the first water inlet and the second water inlet, the moving body is driven by the water flow and blocks the second water outlet.

[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. When the water inflow at the first water inlet and the second water inlet stops, the moving body falls back to the first low position or the second low position when the effect of the fluid is lost.

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

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

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

[0015] In some embodiments, the circulation channel includes a first diversion pipe and a second diversion pipe. The first diversion pipe has a first water inlet, a first low position, and a first water outlet; the second diversion pipe has a second water inlet, a second low position, and a second water outlet; wherein, the connection position between the first diversion pipe and the second diversion pipe is below the second water outlet, and the connection position between the second diversion pipe and the first diversion pipe is below the first water outlet.

[0016] In some embodiments, the first diversion pipe and the second diversion pipe are centrosymmetric about the central axis of the valve body.

[0017] In some embodiments, the first diversion pipe includes a first diversion section and a second diversion section. The leading end of the second diversion section in the water flow direction is connected to the trailing end of the first diversion section in the water flow direction, and the trailing end of the second diversion section in the water flow direction is connected to the second diversion pipe. The first low position is located at the inner bottom wall of the connection between the first diversion section and the second diversion section.

[0018] In some embodiments, the first diversion section is a downcomer that gradually descends in the water flow direction, and the second diversion section is a riser that gradually rises in the water flow direction.

[0019] In some embodiments, the first diversion pipe further includes a first water outlet section. The first water outlet section gradually rises in the water flow direction from the trailing end of the second diversion section, and the first water outlet is located at the trailing end of the first water outlet section in the water flow direction.

[0020] In some of these embodiments, the second diversion pipe includes a third diversion section and a fourth diversion section. The first end of the fourth diversion section in the water flow direction is connected to the second end of the third diversion section in the water flow direction, and the second end of the fourth diversion section in the water flow direction is connected to the first diversion pipe. The second low position is located on the inner bottom wall at the junction of the third diversion section and the fourth diversion section.

[0021] In some of these embodiments, the third diversion section is a descending pipe that gradually descends in the water flow direction, and the fourth diversion section is an ascending pipe that gradually ascends in the water flow direction.

[0022] In some of these embodiments, the second diversion pipe further includes a second water outlet section. The second water outlet section gradually ascends in the water flow direction from the end of the fourth diversion section, and the second water outlet is located at the end of the second water outlet section in the water flow direction.

[0023] In some of these embodiments, a first connection portion is provided on one side of the spray arm close to the valve body, and the first spray cavity is communicated with the first water outlet section through the first connection portion.

[0024] In some of these embodiments, a second connection portion is provided on one side of the spray arm close to the valve body, and the second spray cavity is communicated with the second water outlet section through the second connection portion.

[0025] In some of these embodiments, the first connection portion and the second connection portion are symmetrically arranged.

[0026] In some of these 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; wherein, in 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 of these embodiments, in 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 of these embodiments, the valve body further includes a water inlet pipe. The water inlet pipe includes a main pipe, a first branch pipe, and a second branch pipe. Both the first branch pipe and the second branch pipe are communicated with the main pipe. The end of the first branch pipe away from the main pipe is communicated with the first water inlet, and the end of the second branch pipe away from the main pipe is communicated with the second water inlet.

[0029] In some of these embodiments, along the central axis direction of the valve body, the projection of the circulation channel surrounds the projection of the main pipe on the circumferential side.

[0030] In some of these embodiments, the moving body is a sphere. Among them, the inner diameter of the first water inlet is smaller than the outer diameter of the moving body, and 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 of these embodiments, the valve body is fixed relative to the spray arm. Second, embodiments of the present application provide a dishwasher, including the above-mentioned spraying device, a housing, and an inner container. The inner container is disposed within the housing and has a washing cavity, and the spray arm is located within the washing cavity.

[0032] For the spraying device and the dishwasher of the present application, by using a moving body to block one of the first water outlet and the second water outlet of the valve body under the action of fluid, it is possible to achieve switchable water spraying between the first spraying cavity and the second spraying cavity of the spray arm, meeting the usage requirements of different spraying cavities for water spraying.

[0033] By providing two water inlets, namely a circulation channel, a first water inlet, and a second water inlet, on the valve body, both of these two water inlets intake water when the valve body intakes water and both stop intake water when the valve body stops intake water. The setting of these two water inlets is more conducive to the movement of the moving body along the established route of the circulation channel and has a more balanced structure compared to only providing a single water inlet on the valve body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0035] Figure 1 is a schematic structural diagram of the spraying device provided by an embodiment of the present application;

[0036] Figure 2 is Figure 1 the sectional structural diagram in the A-A direction in;

[0037] Figure 3 is Figure 1 the sectional structural diagram in the B-B direction in;

[0038] Figure 4 is Figure 1 the top view structural diagram of the spraying device shown;

[0039] Figure 5 is Figure 1 the structural diagram of the valve body in the spraying device shown;

[0040] Figure 6 is Figure 5 the front view structural diagram of the valve body in;

[0041] Figure 7 is Figure 6 the sectional structural diagram in the C-C direction in;

[0042] Figure 8 is Figure 6 a schematic cross-sectional structure diagram in the D-D direction in

[0043] Figure 9 is Figure 5 a schematic right-view structure diagram of the valve body in

[0044] Figure 10 is Figure 9 a schematic cross-sectional structure diagram in the E-E direction in

[0045] Figure 11 is Figure 5 a schematic structure diagram of the valve body from another perspective in

[0046] Explanation of reference numerals in the drawings:

[0047] 1. Spraying device;

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

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

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

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

[0052] 20. Moving body;

[0053] 30. Spray arm; 31. First spray cavity; 32. First spray hole; 321. First guiding spray hole; 33. Second spray cavity; 34. Second spray hole; 341. Second guiding spray hole; 35. First connecting part; 36. Second connecting part;

[0054] x. Central axis. Detailed implementation manners

[0055] To make the objectives, technical solutions, and advantages of this application clearer, the following will further describe the embodiments of this application in detail with reference to the accompanying drawings.

[0056] When the following description refers to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0057] Referring to Figures 1 to 8 , an embodiment of the present application provides a spraying device 1, which is used in a dishwasher for cleaning tableware and the like placed in the dishwasher. Among them, the spraying device 1 includes a valve body 10, a moving body 20, and a spray arm 30.

[0058] Referring to Figures 1 to 4 , the spray arm 30 has a first spray chamber 31, a first spray hole 32 communicating with the first spray chamber 31, a second spray chamber 33, and a second spray hole 34 communicating with the second spray chamber 33. The driving directions of the first spray hole 32 and the second spray hole 34 are opposite. Referring to Figures 5 to 8 , the valve body 10 includes a circulation channel 10a, and the circulation channel 10a has a first water inlet 111, a first water outlet 113, a second water inlet 121, and a second water outlet 123. Referring to Figures 1 to 8 , the first spray chamber 31 communicates with the first water outlet 113, and the second spray chamber 33 communicates with the second water outlet 123. The moving body 20 is movably disposed in the circulation channel 10a of the valve body 10, and the moving body 20 is configured to: when water enters from the first water inlet 111 and the second water inlet 121, the moving body 20 is driven by the water flow to move in the circulation channel 10a, and under the action of the fluid, block one of the first water outlet 113 and the second water outlet 123 to change the rotation direction of the spray arm 30. Among them, the fluid can be the fluid introduced into the valve body 10. For example, the washing water introduced through the first water inlet 111 and the second water inlet 121, etc. In the embodiment of the present application, without additionally setting a driving mechanism or additionally introducing a fluid, the moving body 20 can block one of the first water outlet 113 and the second water outlet 123.

[0059] In the embodiments of the present application, the moving 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 spray water in a switchable manner, meeting the usage requirements of different spray cavities for spraying water. 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 moving body 20, the first spray holes 32 corresponding to the first spray cavity 31 cannot spray water. At this time, the second water outlet 123 corresponding to the second spray cavity 33 is not blocked, so the second spray holes 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 moving body 20, the second spray holes 34 corresponding to the second spray cavity 33 cannot spray water. At this time, the first water outlet 113 corresponding to the first spray cavity 31 is not blocked, so the first spray holes 32 corresponding to the first spray cavity 31 can spray water.

[0060] Referring to Figure 4 , the first spray holes 32 communicating with the first spray cavity 31 include first guiding spray holes 321, and the spraying direction of the first guiding spray holes 321 is set at an angle with the rotation axis of the spray arm 30, for driving the spray arm 30 to rotate when spraying water. Specifically, when the first guiding spray holes 321 spray water, the spray arm 30 rotates around the rotation axis of the spray arm 30 under the reverse driving force of the fluid ejected from the first guiding spray holes 321, so as to be able to spray the fluid to different positions in the dishwasher during the rotation of the spray arm 30, and clean the tableware placed at different positions. Among them, the first guiding spray holes 321 can be located at the ends in the length direction of the spray arm 30. For example, Figure 4 the first guiding spray holes 321 shown are located at the left end and / or the right end of the spray arm 30.

[0061] Referring to Figure 4 , the second spray holes 34 communicating with the second spray cavity 33 include second guiding spray holes 341, and the spraying direction of the second guiding spray holes 341 is set at an angle with the rotation axis of the spray arm 30, for driving the spray arm 30 to rotate when spraying water. Specifically, when the second guiding spray holes 341 spray water, the spray arm 30 rotates around the rotation axis of the spray arm 30 under the reverse driving force of the fluid ejected from the second guiding spray holes 341, so as to be able to spray the fluid to different positions in the dishwasher during the rotation of the spray arm 30, and clean the tableware placed at different positions. Among them, the second guiding spray holes 341 can be located at the ends in the length direction of the spray arm 30. For example, Figure 4 the second guiding spray holes 341 shown are located at the left end and / or the right end of the spray arm 30.

[0062] Among them, the first guiding spray holes 321 and the second guiding spray holes 341 are used to drive the spray arm 30 to rotate in opposite directions when spraying water. 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 guiding spray holes 321 and the second guiding spray holes 341 can spray water respectively, changing the rotation direction of the spray arm 30, so as to realize the cleaning of tableware in the dishwasher at different angles and improve the cleaning effect. For example, Figure 4 shows a situation where the first guiding spray holes 321 are used to drive the spray arm 30 to rotate counterclockwise when spraying water, and the second guiding spray holes 341 are used to drive the spray arm 30 to rotate clockwise when spraying water.

[0063] Refer to Figure 3 and Figure 4 , both the first spray chamber 31 and the second spray chamber 33 can extend along the length direction of the spray arm 30, and the first spray chamber 31 and the second spray chamber 33 can be distributed along the width direction of the spray arm 30. Among them, the multiple first spray holes 32 communicated with the first spray chamber 31 can be arranged at intervals along the length direction of the spray arm 30, and the multiple second spray holes 34 communicated with the second spray chamber 33 can be arranged at intervals along the length direction of the spray arm 30. Further, the multiple first spray holes 32 and the multiple second spray holes 34 can be arranged in a staggered manner along the length direction of the spray arm 30.

[0064] Two water inlets, namely the circulation channel 10a, the first water inlet 111 and the second water inlet 121, are arranged on the valve body 10. Both of these two water inlets intake water when the valve body 10 intakes water, and both stop intake water when the valve body 10 stops intake water. The setting of these two water inlets is more conducive to realizing the movement of the moving body 20 along the established route of the circulation channel 10a and has a more balanced structure compared with the case where only a single water inlet is arranged on the valve body 10.

[0065] Moreover, since only a single water inlet is provided for the valve body 10 and a balancing operation is still required during use, two water inlets are provided on the valve body 10 in the embodiments of the present application, which is conducive to the balance of each part of the valve body 10 during use, can omit the balancing step of the valve body 10, and 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 will also rotate. The valve body 10 is provided with two water inlets, namely a first water inlet 111 and a second water inlet 121, which is conducive to the balance of each part of the valve body 10 during the rotation process. Compared with the case where only a single water inlet is provided for the valve body 10 and the valve body needs to be balanced to avoid unilateral wear during the rotation process, the setting of two water inlets can omit the balancing step and is more convenient to use. Among them, the spray arm 30 and the valve body 10 can be fixed by means of welding, bonding, clamping, etc., and no limitation is made thereto. Further, the first water inlet 111 and the second water inlet 121 can be substantially centrosymmetric about the central axis x of the valve body 10 to further achieve the balance of each part of the valve body 10 during use and omit the balancing step of the valve body 10. Among them, the central axis x of the valve body 10 can be the connection line of the center points of each cross-section of the valve body 10 from bottom to top.

[0066] Along the direction of the central axis x of the valve body 10, the projection of the above-mentioned circulation channel 10a is substantially annular. For example, along the direction of the central axis x of the valve body 10, the projection of the circulation channel 10a can be substantially circular, elliptical, etc., and no limitation is made thereto. With the above design, along the direction of the central axis x of the valve body 10, the projection of the circulation channel 10a is substantially annular, so that the water flow in the circulation channel 10a can move in a complete circle; for example, the water flow in the circulation channel 10a moves in a complete circle along the Figure 8 clockwise direction shown. It should be noted that even though the circulation channel 10a has a total of two water inlets, namely the first water inlet 111 and the second water inlet 121, the water flows entering through these two water inlets will also move in the same rotation direction in the circulation channel 10a; for example, the water flows entering through the first water inlet 111 and the second water inlet 121 both move 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 established route of the moving body 20 in the circulation channel 10a is substantially consistent with the water flow movement direction in the circulation channel 10a. For example, if the water flow in the circulation channel 10a moves in the Figure 8 clockwise direction shown, the established route of the moving body 20 is along the clockwise direction of the circulation channel 10a.

[0068] Among them, the inner diameter of the circulation channel 10a is larger than the outer diameter of the moving body 20 to prevent the moving body 20 from being stuck when moving in the circulation channel 10a, ensuring the smooth movement of the moving body 20. Further, the inner diameter of the circulation channel 10a can be 1-2 times the outer diameter of the moving body 20 to reduce the size of the circulation channel 10a on the basis of ensuring the smooth movement of the moving body 20 in the circulation channel 10a. Along the circumferential direction of the circulation channel 10a, the inner diameters of all parts of the circulation channel 10a can be kept substantially unchanged to facilitate the movement of the moving body 20 along a predetermined route in the circulation channel 10a.

[0069] Among them, the moving body 20 can be substantially spherical to facilitate the smooth movement of the moving body 20 in the circulation channel 10a. Among them, the inner diameters of the first water inlet 111, the second water inlet 121, the first water outlet 113 and the second water outlet 123 are all smaller than the outer diameter of the moving body 20 to prevent the moving body 20 from deviating from the predetermined route.

[0070] Refer 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 arranged in sequence along the circumferential direction of the circulation channel 10a. In this way, when water enters the valve body 10, that is, when both the first water inlet 111 and the second water inlet 121 are inletting water, compared with the case where the circulation channel 10a is provided with only a single water inlet and the water inlet through the single water inlet drives the moving body 20 at different positions to move, the setting 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] Since the water flow in the circulation channel 10a moves in a full circle, the water flow direction 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 setting direction of the first water inlet 111 - the first water outlet 113 - the second water inlet 121 - the second water outlet 123; for example, Figure 8 as shown in, the first water inlet 111 - the first water outlet 113 - the second water inlet 121 - the second water outlet 123 are arranged clockwise along the circumferential direction of the circulation channel 10a, and the water flow direction in the circulation channel 10a and the predetermined route of the moving body 20 in the circulation channel 10a are also in the clockwise direction.

[0072] Refer 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. Thus, when the first water inlet 111 and the second water inlet 121 stop water intake and the accumulated water in the valve body 10 is discharged 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 likely to move under the driving of the drainage water flow of the closer second water inlet 121. That is, the moving body 20 at the first water outlet 113 is more likely to move towards the second water inlet 121 rather than towards the first water inlet 111, which is consistent with the established route of the moving body 20 and is beneficial to the moving body 20 moving along the established route.

[0073] Refer 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. Thus, when the first water inlet 111 and the second water inlet 121 stop water intake and the accumulated water in the valve body 10 is discharged 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 likely to move under the driving of the drainage water flow of the closer first water inlet 111. That is, the moving body 20 at the second water outlet 123 is more likely to move towards the first water inlet 111 rather than towards the second water inlet 121, which is consistent with the established route of the moving body 20 and is beneficial to the moving body 20 moving along the established route.

[0074] Refer to Figure 8 , the circulation channel 10a further has a first low position 112 and a second low position 122, and the first water inlet 111, the first low position 112, the first water outlet 113, the second water inlet 121, the second low position 122 and the second water outlet 123 are arranged in sequence along the circumferential direction of the circulation channel 10a.

[0075] The moving body 20 is configured such that 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 intake water, the moving body 20 is driven by the water flow and blocks the first water outlet 113, and 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 intake water, the moving body 20 is driven by the water flow and blocks the second water outlet 123. Thus, it can be clarified whether the moving body 20 specifically blocks the first water outlet 113 or the second water outlet 123, so that both the first water outlet 113 and the second water outlet 123 may be blocked, thereby realizing the switching of the spray cavity and changing 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 admitting water, the moving body 20 loses the effect of the fluid and falls back 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 the low positions in the circulation channel 10a. When the first water inlet 111 and the second water inlet 121 stop admitting water and the accumulated water in the circulation channel 10a is discharged through the first water inlet 111 and the second water inlet 121, after the moving body 20 moves to the first low position 112 or the second low position 122, due to the relatively low positions of the first low position 112 and the second low position 122, the moving body 20 here is not easily driven further by the fluid, so that it can be maintained relatively stably at the first low position 112 or the second low position 122.

[0077] In the embodiment of the present application, the moving body 20 is configured such that 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 admit 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 admitting water, the moving body 20 loses the effect of the fluid and falls back from the first water outlet 113 through the second water inlet 121 to the second low position 122. 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 admit 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 admitting water, the moving body 20 loses the effect of the fluid and falls back from the second water outlet 123 through the first water inlet 111 to the first low position 112.

[0078] Wherein, when in use, the spraying device 1 can be communicated with the washing pump, and whether the first water inlet 111 and the second water inlet 121 admit water or stop admitting water can be controlled by starting or stopping the washing pump. Specifically, when the washing pump is started, both the first water inlet 111 and the second water inlet 121 admit water, and when the washing pump is stopped, both the first water inlet 111 and the second water inlet 121 stop admitting water.

[0079] The use process of the embodiment 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 admit water, and the moving body 20 moves from the first low position 112 under the action of the fluid to the first water outlet 113 and blocks the first water outlet 113. At this time, the water entering the valve body 10 exits through the second water outlet 123. If the washing pump is stopped, the first water inlet 111 and the second water inlet 121 stop admitting water, the accumulated water in the valve body 10 is discharged through the first water inlet 111 and the second water inlet 121, the moving body 20 loses the effect of the fluid, and under the action of gravity, it falls back from the first water outlet 113 through the second water inlet 121 to the second low position 122.

[0080] When the washing pump is started again, water enters from the first water inlet 111 and the second water inlet 121. 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 entering the valve body 10 flows out through the first water outlet 113. If the washing pump stops, the water inlet of the first water inlet 111 and the second water inlet 121 stops, and the accumulated water in the valve body 10 is discharged through the first water inlet 111 and the second water inlet 121. The moving body 20 loses the action of the fluid and falls back to the first low position 112 after passing through the first water inlet 111 from the second water outlet 123 under the action of gravity. By repeatedly starting and stopping the washing pump, the alternative water outlet of the first water outlet 113 and the second water outlet 123 can be realized.

[0081] Among them, the first low position 112 and the second low position 122 can be centrosymmetric about the central axis x of the valve body 10, and the first water outlet 113 and the second water outlet 123 can be centrosymmetric about the central axis x of the valve body 10, which is beneficial to the balance of each part of the valve body 10 during use and omits the trimming step of the valve body 10.

[0082] Refer to Figures 5 to 8 , the circulation channel 10a includes a first diversion pipe 11 and a second diversion pipe 12. The first diversion pipe 11 has a first water inlet 111, a first low position 112 and a first water outlet 113. The second diversion pipe 12 has a second water inlet 121, a second low position 122 and a second water outlet 123. The connection position of the first diversion pipe 11 and the second diversion pipe 12 is below the second water outlet 123, and the connection position of the second diversion pipe 12 and the first diversion pipe 11 is below the first water outlet 113. The above design that the connection position of the first diversion pipe 11 and the second diversion pipe 12 is below the second water outlet 123 is beneficial to the moving body 20 at the second water outlet 123 to fall into the first diversion pipe 11 when the water inlet of the first water inlet 111 and the second water inlet 121 stops and the fluid action is lost, so as to realize the movement of the moving body 20 along the established route. The above design that the connection position of the second diversion pipe 12 and the first diversion pipe 11 is below the first water outlet 113 is beneficial to the moving body 20 at the first water outlet 113 to fall into the second diversion pipe 12 when the water inlet of the first water inlet 111 and the second water inlet 121 stops and the fluid action is lost, so as to realize the movement of the moving body 20 along the established route.

[0083] The first diversion pipe 11 and the second diversion pipe 12 are centrosymmetric about the central axis x of the valve body 10. Further, the entire valve body 10 can be designed to be centrosymmetric about its central axis x, which is beneficial to the balance of each part of the valve body 10 during use and omits the trimming step of the valve body 10.

[0084] Refer to Figures 5 to 8, the first diversion pipe 11 includes a first diversion section 114 and a second diversion section 115. The first end of the second diversion section 115 in the water flow direction is connected to the last end of the first diversion section 114 in the water flow direction. The last end of the second diversion section 115 in the water flow direction is connected to the second diversion pipe 12. The first low position 112 is located at the inner bottom wall of the joint between the first diversion section 114 and the second diversion section 115.

[0085] Wherein, the first diversion section 114 can be a downpipe that gradually descends in the water flow direction, and the second diversion section 115 can be an uppipe that gradually ascends in the water flow direction. At this time, the first low position 112 is located in the concave part at the joint between the first diversion section 114 and the second diversion section 115, so that when the moving body 20 is not easy to stop water intake at the first water inlet 111 and the second water inlet 121, it is not easy to shift from the first low position 112 under the drive of the small flow of the accumulated water discharged in the circulation channel 10a.

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

[0087] Wherein, the first water inlet 111 can be located in the first diversion section 114. Thus, when the first water inlet 111 intakes water, the water intake at the first water inlet 111 can flow downward under the guidance of the first diversion section 114 to carry away the moving body 20 at the first low position 112 at the end of the first diversion section 114. It can be understood that the first water inlet 111 can be located at the first end of the first diversion section 114, or can be located between the first end and the last end of the first diversion section 114.

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

[0089] Refer to Figure 5, the first diversion pipe 11 may further include a first water outlet section 116, that is, the first diversion pipe 11 includes a first diversion section 114, a second diversion section 115, and a first water outlet section 116. The first water outlet section 116 gradually rises along the water flow direction from the end of the second diversion section 115, 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 diversion 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, refer to Figure 2 , a first connection portion 35 may be provided on the side of the spray arm 30 close to the valve body 10 (such as, the lower surface of the spray arm 30). The first spray chamber 31 communicates with the first water outlet section 116 through the first connection portion 35. Wherein, the first connection portion 35 may protrude outward from the lower surface of the spray arm 30, and the first connection portion 35 may be sleeved around the outer 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 outer periphery of the first connection portion 35 to achieve connection and communication with the first connection portion 35, and this is not limited.

[0090] Refer to Figure 5 , the first water outlet section 116 includes a first guiding portion 1161. The first guiding portion 1161 gradually rises along the water flow direction from the end of the second diversion section 115. The first guiding portion 1161 includes a first pipe wall 1162 and a second pipe wall 1163 distributed circumferentially along the first guiding portion 1161. The first pipe wall 1162 is connected to the second diversion section 115 and the second pipe wall 1163 is connected to the second diversion pipe 12. Along the water flow direction, the first pipe wall 1162 extends obliquely towards the direction close to the second diversion pipe 12. In this way, it can make the first water outlet 113 of the first water outlet section 116 closer to the second diversion pipe 12, which is beneficial for the moving body 20 to lose the fluid effect and fall back into the second diversion pipe 12 from the first water outlet 113 when the first water inlet 111 and the second water inlet 121 stop supplying water, so as to realize the movement of the moving body 20 along the established route. Wherein, the first pipe wall 1162 is connected to the second diversion section 115, then when the moving body 20 enters the first guiding portion 1161 from the second diversion section 115, it can move approximately under the guidance of the first pipe wall 1162 close to the second diversion section 115, and then can be guided by the first pipe wall 1162 to the first water outlet 113.

[0091] Refer to Figure 8, along the x-axis direction of the central axis of the valve body 10, the center of the projection of the first water outlet 113 can be located in the second diversion pipe 12. In this way, when the first water inlet 111 and the second water inlet 121 stop admitting water, the moving body 20 loses the fluid effect and can fall back into the second diversion pipe 12 from the first water outlet 113 under the action of gravity. Further, along the x-axis direction of the central axis of the valve body 10, the projection of the first water outlet 131 can be entirely located within the second diversion pipe 12 to ensure that when the first water inlet 111 and the second water inlet 121 stop admitting water, the moving body 20 loses the fluid effect and can fall back into the second diversion pipe 12 from the first water outlet 113 under the action of gravity.

[0092] Among them, along the water flow direction, the second pipe wall 1163 extends along the x-axis direction of the central axis of the valve body 10. When the moving body 20 falls back into the second diversion pipe 12 from the first water outlet section 116, it can move approximately under the guidance of the second pipe wall 1163 of the second diversion pipe 12, which is beneficial for the moving body 20 to fall back into the second diversion pipe 12.

[0093] As mentioned above, along the water flow direction, the first pipe wall 1162 extends obliquely towards the second diversion pipe 12, and the second pipe wall 1163 extends along the x-axis direction of the central axis of the valve body 10. In this way, the diameter of the first guiding portion 1161 can be gradually reduced along the water flow direction, which is beneficial for the moving body 20 to block the first water outlet 113 when moving to the first water outlet 113.

[0094] Refer to Figure 5 , the first water outlet section 116 can also include a first connecting portion 1164, that is, the first water outlet section 116 includes a first guiding portion 1161 and a first connecting portion 1164. The first connecting portion 1164 gradually rises along the water flow direction from the end of the first guiding portion 1161. Along the water flow direction, the first connecting portion 1164 is a cylindrical pipe extending along the x-axis direction of the central axis of the valve body 10. In this way, it is convenient for the valve body 10 to be connected to the spray arm 30 (such as the first connecting portion 35) through the first connecting portion 1164.

[0095] It should be noted that the first diversion pipe 11 may not include the first water outlet section 116. At this time, the first water outlet 113 can be located at one end of the second diversion section 115 away from the first diversion section 114 and at the top of the second diversion section 115. That is, one end of the second diversion section 115 away from the first diversion section 114 is the end of the first diversion pipe 11. When the first water inlet 111 and the second water inlet 121 admit water, the moving body 20 can gradually rise from the first low position 112 at the bottom end of the second diversion section 115 to the first water outlet 113 at the top end under the guidance of the second diversion section 115.

[0096] The head end of the first diversion section 114 in the water flow direction is connected to the second diversion pipe 12. That is to say, the first diversion section 114 is generally the starting section of the first diversion pipe 11. At this time, the first diversion pipe 11 can generally be composed of the first diversion section 114, the second diversion section 115 and the first water outlet section 116, or can generally be composed of the first diversion section 114 and the second diversion section 115.

[0097] It should be noted that if the head end of the first diversion section 114 is connected to the second diversion section 12, the first water inlet 111 is located at the head end of the first diversion section 114, and the connection position between the head end of the first diversion pipe 11 and the second diversion pipe 12 is 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 diversion 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 to avoid affecting the normal flow of water.

[0098] Among them, the first diversion section 114 and the second diversion section 115 are smoothly connected in a transitional manner to facilitate the smooth movement of the moving body 20 between the first diversion section 114 and the second diversion section 115. The second diversion section 115 and the first water outlet section 116 are smoothly connected in a transitional manner to facilitate the smooth movement of the moving body 20 between the second diversion section 115 and the first water outlet section 116. The first diversion pipe 11 and the second diversion pipe 12 are smoothly connected in a transitional manner to facilitate the smooth movement of the moving body 20 between the first diversion pipe 11 and the second diversion pipe 12.

[0099] Refer to Figures 5 to 8 , the second diversion pipe 12 includes a third diversion section 124 and a fourth diversion section 125. The head end of the fourth diversion section 125 in the water flow direction is connected to the tail end of the third diversion section 124 in the water flow direction. The tail end of the fourth diversion section 125 in the water flow direction is connected to the first diversion pipe 11. The second low position 122 is located on the inner bottom wall at the connection of the third diversion section 124 and the fourth diversion section 125.

[0100] Among them, the third diversion section 124 can be a descending pipe that gradually descends in the water flow direction, and the fourth diversion section 125 can be an ascending pipe that gradually ascends in the water flow direction. At this time, the second low position 122 is located in the concave part at the connection of the third diversion section 124 and the fourth diversion section 125, so that when the moving body 20 is not easy to stop water intake at the first water inlet 111 and the second water inlet 121, it is not easy to shift from the second low position 122 driven by the small flow of the accumulated water discharged in the circulation channel 10a.

[0101] It should be noted that in actual design, the descending degree of the third diversion section 124 and the ascending degree of the fourth diversion section 125 can be reasonably designed so that the depression degree at the connection of the third diversion section 124 and the fourth diversion section 125 is appropriate, enabling the moving body 20 to stay stably at the second low position 122 of the depression when the first water inlet 111 and the second water inlet 121 stop admitting water, and when the first water inlet 111 and the second water inlet 121 admit water, the moving body 20 can move from the second low position 122 towards the second water outlet 123 under the drive of the water flow.

[0102] Among them, the second water inlet 121 can be located in the third diversion section 124. In this way, when the second water inlet 121 admits water, the water inlet at the second water inlet 121 can flow downward under the guidance of the third diversion section 124 to carry away the moving body 20 at the second low position 122 at the end of the third diversion section 124. It can be understood that the second water inlet 121 can be located at the head end of the third diversion section 124 or between the head end and the end of the third diversion 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 moving body 20 or the inner diameter of the fourth diversion section 125 is greater than the outer diameter of the moving body 20, the moving body 20 can be at least partially made of buoyant material, so that when the first water inlet 111 and the second water inlet 121 admit water, the moving body 20 can move along the inner top wall of the fourth diversion section 125 under the action of the thrust and buoyancy of the fluid, so as to gradually rise from the second low position 122 at the bottom end of the fourth diversion section 125 to the second water outlet 123 at the top end under the guidance of the fourth diversion section 125.

[0104] Refer to Figure 5 , the second diversion pipe 12 can also include a second water outlet section 126, that is, the second diversion pipe 12 includes a third diversion section 124, a fourth diversion section 125 and a second water outlet section 126. The second water outlet section 126 gradually rises along the water flow direction from the end of the fourth diversion section 125, and the second water outlet 123 is located at the end of the second water outlet section 126 along the water flow direction. The second water outlet section 126 protrudes from the fourth diversion section 125, and the valve body 10 can be connected to the spray arm 30 via the second water outlet section 126, making the connection operation more convenient. For example, refer to Figure 2, on the side of the spray arm 30 close to the valve body 10 (e.g., the lower surface of the spray arm 30), a second connecting portion 36 may be provided. The second spray chamber 33 is communicated with the second water outlet section 126 through the second connecting portion 36. Among them, the second connecting portion 36 may protrude outward from the lower surface of the spray arm 30. The second connecting portion 36 may be sleeved around the 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 periphery of the second connecting portion 36 to achieve connection and communication with the second connecting portion 36, and this is not limited. The above-mentioned first connecting portion 35 and the second connecting portion 36 may be symmetrically arranged.

[0105] Refer to Figure 5 , the second water outlet section 126 includes a second guiding portion 1261. The second guiding portion 1261 gradually rises along the water flow direction from the end of the fourth diversion section 125. The second guiding portion 1261 includes a third pipe wall 1262 and a fourth pipe wall 1263 distributed circumferentially along the second guiding portion 1261. The third pipe wall 1262 is connected to the fourth diversion section 125 and the fourth pipe wall 1263 is connected to the first diversion pipe 11. Along the water flow direction, the third pipe wall 1262 extends obliquely towards the direction close to the first diversion pipe 11. In this way, it can be ensured that the second water outlet 123 of the second water outlet section 126 is closer to the first diversion pipe 11, which is beneficial for the moving body 20 to lose the fluid effect and fall back into the first diversion pipe 11 from the second water outlet 123 when the first water inlet 111 and the second water inlet 121 stop supplying water, so as to realize the movement of the moving body 20 along the established route. Among them, the third pipe wall 1262 is connected to the fourth diversion section 125, so when the moving body 20 enters the second guiding portion 1261 from the fourth diversion section 125, it can move under the guidance of the third pipe wall 1262 close to the fourth diversion section 125, and then can be guided by the third pipe wall 1262 to the second water outlet 123.

[0106] Refer to Figure 8 , along the central axis x direction of the valve body 10, the center of the projection of the second water outlet 123 may be located in the first diversion pipe 11. In this way, when the first water inlet 111 and the second water inlet 121 stop supplying water, the moving body 20 loses the fluid effect and can fall back into the first diversion pipe 11 from the second water outlet 123 under the action of gravity. Further, along the central axis x direction of the valve body 10, the projection of the first water outlet 131 may be entirely located in the first diversion pipe 11 to ensure that when the first water inlet 111 and the second water inlet 121 stop supplying water, the moving body 20 loses the fluid effect and can fall back into the first diversion pipe 11 from the second water outlet 123 under the action of gravity.

[0107] Among them, along the water flow direction, the fourth pipe wall 1263 extends along the x-axis direction of the central axis of the valve body 10. When the moving body 20 falls back into the first diversion pipe 11 from the second water outlet section 126, it can move under the guidance of the fourth pipe wall 1263 of the first diversion pipe 11 approximately, which is beneficial for the moving body 20 to fall back into the first diversion pipe 11.

[0108] In the above-mentioned water flow direction, the third pipe wall 1262 extends obliquely towards the direction close to the first diversion pipe 11, and the fourth pipe wall 1263 extends along the x-axis direction of the central axis of the valve body 10. In this way, the diameter of the second guiding part 1261 can be gradually reduced along the water flow direction, which is beneficial for the moving body 20 to block the second water outlet 123 when moving to the second water outlet 123.

[0109] Refer to Figure 5 , the second water outlet section 126 may further include a second connecting part 1264, that is, the second water outlet section 126 includes the second guiding part 1261 and the second connecting part 1264. The second connecting part 1264 gradually rises along the water flow direction from the end of the second guiding part 1261. Along the water flow direction, the second connecting part 1264 is a cylindrical pipe extending along the x-axis direction of the central axis of the valve body 10. In this way, it is convenient for the valve body 10 to be connected to the spray arm 30 (such as the second connecting part 36) through the second connecting part 1264.

[0110] It should be noted that the second diversion pipe 12 may not include the second water outlet section 126. At this time, the second water outlet 123 may be located at one end of the fourth diversion section 125 far from the third diversion section 124 and at the top of the fourth diversion section 125. That is, one end of the fourth diversion section 125 far from the third diversion section 124 is the end of the second diversion pipe 12. When water enters from 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 diversion section 125 to the second water outlet 123 at the top end under the guidance of the fourth diversion section 125.

[0111] The first end of the third diversion section 124 along the water flow direction is connected to the first diversion pipe 11. That is, the third diversion section 124 is approximately the starting section of the second diversion pipe 12. At this time, the second diversion pipe 12 may be approximately composed of the third diversion section 124, the fourth diversion section 125 and the second water outlet section 126, or may be approximately composed of the third diversion section 124 and the fourth diversion section 125.

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

[0113] The third guide section 124 and the fourth guide section 125 are smoothly connected to each other, so that the moving body 20 can move smoothly between the third guide section 124 and the fourth guide section 125. The fourth guide section 125 and the second water outlet section 126 are smoothly connected to each other, so that the moving body 20 can move smoothly between the fourth guide section 125 and the second water outlet section 126.

[0114] See also Figures 5 to 11 The valve body 10 further includes a water inlet pipe 13, and the water inlet pipe 13 and the circulation channel 10a can be connected by welding, clamping, etc., which is not limited to this.

[0115] The water inlet pipe 13 includes 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 both connected to the main pipe 131. One end of the first branch pipe 132 away from the main pipe 131 is connected to the first water inlet 111, and one end of the second branch pipe 133 away from the main pipe 131 is connected to the second water inlet 121. The first branch pipe 132 and the second branch pipe 133 can be connected to an external water supply source through the same main pipe 131, which can simplify the connection pipeline with the external water supply source.

[0116] See also Figure 11 Along the center axis x direction of the valve body 10, the projection of the circulation channel 10a is arranged around the projection of the main pipe 131. In this way, the structure of the valve body 10 can be made more compact, which is conducive to compressing the size of the valve body 10.

[0117] See also Figure 7 and Figure 8 The first branch pipe 132 and the water inlet of the valve body 10 are in a tangential direction and connected. In this way, the water inlet from the first branch pipe 132 into the first flow guide pipe 11 can flow roughly toward the first water outlet 113, and the direction of the water flow in the first flow guide pipe 11 can be controlled, such as realizing that the water flow direction of the first flow guide pipe 11 is along Figure 8 Clockwise direction shown.

[0118] The second branch pipe 133 is tangentially connected to the water inlet of the valve body 10. In this way, the water inlet from the second branch pipe 133 into the second flow guide pipe 12 can flow roughly toward the second water outlet 123, and the direction of the water flow in the second flow guide pipe 12 can be controlled, such as the direction of the water flow in the second flow guide pipe 12 can be controlled along the second water outlet 123. Figure 8 Clockwise direction shown.

[0119] It should be noted that the first branch pipe 132 may also extend roughly along the radial direction of the circulation channel 10a, and the second branch pipe 133 may also extend roughly 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 control of the water flow direction in the first guide pipe 11 and the second guide pipe 12 can be achieved by bending the circulation channel 10a, etc. For example, the first water inlet 111 is located in the above-mentioned first guide section 114, so that the fluid passing into the first guide pipe 11 through the first water inlet 111 flows along the descending direction of the first guide section 114; the second water inlet 121 is located in the above-mentioned third guide section 124, so that the fluid passing into the second guide pipe 12 through the second water inlet 121 flows along the descending direction of the second guide section 124.

[0120] See also Figure 6 and Figure 10 , the water inlet pipe 13 is located below the circulation channel 10a. In this way, when water is introduced into the water inlet pipe 13, the fluid moves upward into the circulation channel 10a, and when the water inlet pipe 13 stops introducing water, the accumulated water in the circulation channel 10a will be discharged toward the water inlet pipe 13 below, which is conducive to the timely discharge of the accumulated water in the circulation channel 10a. Among them, 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 roughly the same, so that the first branch pipe 132 and the second branch pipe 133 can be manufactured by the same mold, and the water inflow of the first water inlet 111 and the second water inlet 121 can be roughly balanced, which is beneficial to the balancing of the valve body 10. For example, the diameters of the first branch pipe 132 and the second branch pipe 133 can be roughly the same, the curvatures of the first branch pipe 132 and the second branch pipe 133 can be roughly the same, and the like are not limited thereto.

[0122] The embodiment of the present application also provides a dishwasher, which includes the above-mentioned spray device 1, a shell and an inner tank, the inner tank is arranged in the shell and has a washing cavity, and the spray arm 30 is located in the washing cavity so as to be able to wash the dishes in the washing cavity.

[0123] In the description of the present application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed 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 specific circumstances. In addition, in the description of the present application, unless otherwise specified, "a plurality of" means at least two, for example, two, three, four, etc. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects before and after are in an "or" relationship.

[0124] The above-disclosed are only the preferred embodiments of the present application, and of course, the scope of rights of the present application cannot be limited thereby. Therefore, equivalent changes made according to the claims of the present application still fall within 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 connected to the first spray chamber, a second spray chamber, and a second spray hole connected to 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 moving body is movably arranged in the circulation channel of the valve body, and the moving body is configured as follows: when water is introduced into the first water inlet and the second water inlet, the moving body is driven by the water flow to move in the circulation channel, and blocks 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.

2. The spray device according to claim 1, characterized in that: The circulation channel also 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; Wherein, 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 spray 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 spray 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 spray device according to claim 2, characterized in that: The circulation channel comprises: a first flow guiding pipe, the first flow guiding 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; Wherein, 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 spray device according to claim 5, characterized in that: The first flow guiding pipe and the second flow guiding pipe are centrally symmetrical about the central axis of the valve body.

7. The spray device according to claim 5, characterized in that: The first flow guide tube comprises: 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 spray 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 spray device according to claim 7, characterized in that: The first flow guide tube further comprises: 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 spray device according to any one of claims 5 to 9, characterized in that: The second flow guide tube comprises: A third flow guide section; and A 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 spray device according to claim 10, characterized in that: The third guide section is a downcomer that gradually descends along the water flow direction, and the fourth guide section is a riser that gradually rises along the water flow direction.

12. The spray device according to claim 10, characterized in that: The second flow guide tube further comprises: 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 spray device according to claim 12, 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 with the second water outlet section through the second connection portion; And / or, the first connection portion and the second connection portion are symmetrically arranged.

14. The spray 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; Wherein, 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 spray device according to claim 1, characterized in that: The valve body also includes: 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 both connected to the main pipe, one end of the first branch pipe away from the main pipe is connected to the first water inlet, and one end of the second branch pipe away from the main pipe is connected to the second water inlet.

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

17. The spray 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 spray 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 chamber, and the spray arm is located in the washing chamber.

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