Spraying device and dish washing machine

Abstract

The embodiment of the utility model discloses a spraying device and a dish washing machine. The spraying device comprises a spraying arm, a valve body and a moving body. At least part of the valve body is arranged in the spraying arm, the valve body comprises a circulating channel, a first water outlet and a second water outlet, the first spraying cavity is communicated with the first water outlet, and the second spraying cavity is communicated with the second water outlet; in the height direction of the gushing arm, at least part of the circulating channel and the gushing arm are located at the same height; the moving body is movably arranged in the circulating channel of the valve body, and the moving body is configured as follows: when water enters the valve body, 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. According to the spraying device, the height size of the spraying device can be compressed, and space is saved.

Description

Technical Field

[0001] This application relates to the field of food waste disposal equipment technology, and more particularly to a spray device and a dishwasher. Background Technology

[0002] As living standards improve, dishwashers, which free up hands, are gradually becoming a standard feature of quality living. Compared to traditional hand washing, dishwashers offer advantages such as better cleaning, sterilization, and water and labor savings. Dishwashers generally use a spray-type washing method; driven by a washing pump, water flows through rotating spray arms to rinse the surface of the dishes. With increasing user demands, people are anticipating the emergence of new dishwashers with comprehensively improved performance. Utility Model Content

[0003] The inventors of this application discovered that by setting multiple spray chambers on the spray arm, and by using different spray chambers to drive the spray arm to rotate in different directions, the water sprayed from different spray chambers can be controlled to achieve different angles for rinsing the dishes, reducing blind spots and improving the cleaning effect. However, it is difficult to improve the spray arm to control the water spray from different spray chambers.

[0004] This application provides a spraying device and a dishwasher to improve the problem of difficulty in modifying the spray arm to control the water spray from different spray chambers.

[0005] This application provides a spray device for a dishwasher, comprising:

[0006] The spray arm has 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. The driving direction of the first spray hole is opposite to the driving direction of the second spray hole.

[0007] A valve body, at least partially disposed within the spray arm, includes a circulation channel, a first water outlet, and a second water outlet; a first spray chamber communicates with the first water outlet, and a second spray chamber communicates with the second water outlet; in the height direction of the spray arm, at least a portion of the circulation channel is located at the same height as the spray arm; and...

[0008] The movable body is movably installed in the circulation channel of the valve body. The movable body is configured such that when water enters the valve body, 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 outlet and the second outlet to change the rotation direction of the spray arm.

[0009] In some embodiments, the circulation channel includes:

[0010] The first channel has a first water outlet; and,

[0011] The second channel has a second water outlet;

[0012] The first outlet is located on the outer wall of the first channel and in the direction of water outlet of the second channel, while the second outlet is located on the outer wall of the second channel and in the direction of water outlet of the first channel.

[0013] In some embodiments, the inner bottom wall of the first channel includes a first guide portion and a second guide portion. Along the water flow direction, the first guide portion is in a downward trend, and the second guide portion is in an upward trend, forming a second low position between the first guide portion and the second guide portion.

[0014] In some embodiments, the inner bottom wall of the second channel includes a third guide portion and a fourth guide portion. Along the water flow direction, the third guide portion is in a downward trend, and the fourth guide portion is in an upward trend, forming a first low position between the third guide portion and the fourth guide portion.

[0015] In some embodiments, the first low position, the first outlet, the second low position, and the second outlet are arranged sequentially along the circumference of the circulation channel.

[0016] In some embodiments, the movable body is configured such that when the movable body is in a first low position and water enters the valve body, the movable body is driven by the water flow and blocks the first outlet; when the movable body is in a second low position and water enters the valve body, the movable body is driven by the water flow and blocks the second outlet.

[0017] In some embodiments, when the valve body stops receiving water, the moving body, having lost the fluid's influence, falls back from the second outlet to the first low position or from the first outlet to the second low position.

[0018] In some embodiments, the first guide portion includes a first guide rib and a second guide rib connected together, and the inclination of the first guide rib is greater than the inclination of the second guide rib along the water flow direction.

[0019] In some embodiments, the third guide portion includes a fifth guide rib and a sixth guide rib connected together, wherein the inclination of the fifth guide rib is greater than the inclination of the sixth guide rib along the water flow direction.

[0020] In some embodiments, the first guide portion and the third guide portion are centrally symmetrical about the central axis of the valve body.

[0021] In some embodiments, the second guide portion includes a third guide rib and a fourth guide rib. Along the water flow direction, the height of the third guide rib gradually increases, and the highest point of the third guide rib connects to the fourth guide rib, while the height of the fourth guide rib remains unchanged.

[0022] In some embodiments, the fourth guide portion includes a seventh guide rib and an eighth guide rib. Along the water flow direction, the height of the seventh guide rib gradually increases, and the highest point of the seventh guide rib connects to the eighth guide rib, while the height of the eighth guide rib remains unchanged.

[0023] In some embodiments, the second guide portion and the fourth guide portion are centrally symmetrical about the central axis of the valve body.

[0024] In some embodiments, the fourth guide portion includes an eighth guide rib, the first guide portion includes a first guide rib, the eighth guide rib is connected to the first guide rib and forms a step, and the moving body rises from the eighth guide rib to the first guide rib under the action of water flow.

[0025] In some embodiments, the second guide portion includes a fourth guide rib, the third guide portion includes a fifth guide rib, the fourth guide rib and the fifth guide rib are connected to form a step, and the moving body rises from the fourth guide rib to the fifth guide rib under the action of water flow.

[0026] In some embodiments, the first guide rib is disposed adjacent to the first outlet, and the projection of the movable body when blocking the first outlet is located on the first guide rib.

[0027] In some embodiments, the fifth guide rib and the second outlet are arranged adjacent to each other, and the projection of the moving body when blocking the second outlet is located on the fifth guide rib.

[0028] In some embodiments, a first upper guide structure is provided on the inner top wall of the circulation channel. Along the water flow direction, the protrusion height of the first upper guide structure gradually decreases and is located between the first low position and the first outlet. The first upper guide structure is used to guide the moving body to the first outlet under the action of the water flow.

[0029] In some embodiments, a second upper guide structure is provided on the inner top wall of the circulation channel. Along the water flow direction, the protrusion height of the second upper guide structure gradually decreases and is located between the second low position and the second outlet. The second upper guide structure is used to guide the moving body to the second outlet under the action of the water flow.

[0030] In some embodiments, the valve body further includes a water inlet pipe disposed in the middle of the valve body to form an annular circulation channel. The water inlet pipe has a first water inlet and a second water inlet, the first water inlet being connected to a second channel and the second water inlet being connected to a first channel.

[0031] In some embodiments, the first water inlet is adjacent to the first low position, and the water inlet pipe is provided with a first guide strip at the first water inlet. The first guide strip extends tangentially along the annular wall of the water inlet pipe to form a tangential water flow toward the first low position.

[0032] In some embodiments, the second inlet is adjacent to the second low position, and the inlet pipe is provided with a second guide bar at the second inlet. The second guide bar extends tangentially along the annular wall of the inlet pipe to form a tangential water flow toward the second low position.

[0033] In some embodiments, a third guide bar is provided around the water inlet pipe. The third guide bar is located inside the circulation channel and adjacent to the second water inlet. The third guide bar has a raised portion protruding toward the outer wall of the circulation channel.

[0034] In some embodiments, a fourth guide bar is provided around the water inlet pipe. The fourth guide bar is located inside the circulation channel and adjacent to the first water inlet. The fourth guide bar has a raised portion protruding toward the outer wall of the circulation channel.

[0035] In some embodiments, the water inlet pipe, the third guide strip, and the fourth guide strip combine to form the inner wall of the circulation channel, and the inner wall of the circulation channel is adapted to the shape of the outer wall of the circulation channel.

[0036] In some embodiments, the first guide portion is disposed adjacent to the outer wall of the circulation channel to form a first water passage on the second inlet side.

[0037] In some embodiments, the third guide portion is disposed adjacent to the outer wall of the circulation channel to form a second water passage on the first inlet side.

[0038] In some embodiments, the first spray chamber and the second spray chamber are symmetrically arranged along the extension direction of the spray arm and surround a circulation channel.

[0039] In some embodiments, the first spray chamber includes a first cavity segment connected to a first water outlet, and the second spray chamber includes a third cavity segment connected to a second water outlet. The first cavity segment and the third cavity segment together form a circulation channel.

[0040] In some embodiments, the first spray chamber further includes a second chamber section, the first chamber section is connected to the second chamber section, the connection between the first chamber section and the second chamber section is raised in the direction of approaching the circulation channel, and the first water outlet discharges water toward the raised portion.

[0041] In some embodiments, the second spray chamber further includes a fourth chamber section, the third chamber section is connected to the fourth chamber section, the connection between the third chamber section and the fourth chamber section is raised in the direction of approaching the circulation channel, and the second water outlet discharges water toward the raised portion.

[0042] In some embodiments, the spray arm has a mounting position in the middle, and the valve body is at least partially mounted in the mounting position.

[0043] In some embodiments, the valve body and the spray arm are integrally formed.

[0044] This application also provides a dishwasher, including the above-mentioned spray device, housing and inner liner, the inner liner being disposed inside the housing and having a washing chamber, and the spray arm being located in the washing chamber.

[0045] The spray device and dishwasher of this application embodiment, through the design of a circulation channel, a first water outlet, and a second water outlet, enable the moving body to move within the circulation channel under the action of fluid, and can block one of the first and second water outlets, changing the rotation direction of the spray arm. Compared with related technologies that add a water distribution valve for multi-channel water level control or add a switching structure to change the rotation direction of the spray arm, the design scheme of circulation channel, first water outlet, second water outlet, and moving body simplifies the structure of the spray device and saves space.

[0046] By designing at least part of the circulation channel to be at the same height as the spray arm, it is beneficial to compress the height of the spray device and save space. Attached Figure Description

[0047] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0048] Figure 1 This is a schematic diagram of the structure of a spraying device provided in some embodiments of this application;

[0049] Figure 2 yes Figure 1 Schematic diagram of the structure in the AA direction;

[0050] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0051] Figure 4 yes Figure 3 A partial cross-sectional structural diagram of the central circulation channel and the spray arm;

[0052] Figure 5 yes Figure 1 A partial three-dimensional structural schematic diagram of the spray device is shown;

[0053] Figure 6 yes Figure 1 The diagram shows a partial cross-sectional view of the spray device.

[0054] Figure 7 yes Figure 6 A schematic diagram of the cross-sectional structure along the CC direction;

[0055] Figure 8 yes Figure 6 Schematic diagram of the cross-sectional structure in the DD direction;

[0056] Figure 9yes Figure 6 Schematic diagram of the cross-sectional structure in the EE direction;

[0057] Figure 10 yes Figure 6 Schematic diagram of the cross-sectional structure in the FF direction;

[0058] Figure 11 yes Figure 2 A schematic diagram of a partial cross-sectional structure along the GG direction;

[0059] Figure 12 This is an exploded structural diagram of a spray device provided in some embodiments of this application.

[0060] Explanation of reference numerals in the attached figures:

[0061] 1. Spraying device;

[0062] 10. Valve body; 10a. Circulation channel;

[0063] 11. First channel; 111. First inlet; 112. First low position; 113. First outlet; 114. First straight channel; 115. Second straight channel; 116. First curved channel;

[0064] 12. Second channel; 121. Second inlet; 122. Second low position; 123. Second outlet; 124. Third straight channel; 125. Fourth straight channel; 126. Second curved channel;

[0065] 13. Water inlet pipe; 131. First guide bar; 132. Second guide bar; 133. Third guide bar; 134. Fourth guide bar;

[0066] 14. Top surface;

[0067] 15. Outer bottom surface;

[0068] 20. Moving body;

[0069] 30. Spray arm; 31. First spray chamber; 311. First chamber segment; 312. Second chamber segment; 32. First spray hole; 321. First guide spray hole; 33. Second spray chamber; 331. Third chamber segment; 332. Fourth chamber segment; 34. Second spray hole; 341. Second guide spray hole; 36. First water passage; 37. Second water passage; 38. Outer top surface; 39. Outer bottom surface;

[0070] 41. First guide section; 411. First guide rib; 412. Second guide rib; 43. Second guide section; 431. Third guide rib; 432. Fourth guide rib;

[0071] 51. Third guide section; 511. Fifth guide rib; 512. Sixth guide rib; 53. Fourth guide section; 531. Seventh guide rib; 532. Eighth guide rib;

[0072] 60. First upper guide structure;

[0073] 70. Second upper guide structure;

[0074] x, central axis; y, first direction. Detailed Implementation

[0075] To make the objectives, 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.

[0076] In the following description, when referring to the accompanying drawings, the same numbers in different drawings denote the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0077] See Figures 1 to 12 This application provides a spray device 1 for use in a dishwasher to clean tableware and other items placed inside the dishwasher. The spray device 1 includes a valve body 10, a movable body 20, and a spray arm 30.

[0078] See Figures 1 to 3 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 direction of the first spray hole 32 is opposite to the driving direction of the second spray hole 34. The valve body 10 is at least partially located inside the spray arm 30. The valve body 10 includes a circulation channel 10a, a first outlet 113, and a second outlet 123. The first spray chamber 31 communicates with the first outlet 113, and the second spray chamber 33 communicates with the second outlet 123. In the height direction of the spray arm 30, at least a portion of the circulation channel 10a is located at the same height as the spray arm 30. The movable body 20 is movably disposed within the circulation channel 10a of the valve body 10. The movable body 20 is configured such that when water enters the valve body 10, the movable body 20 is driven by the water flow to move within the circulation channel 10a, and under the action of the fluid, it blocks one of the first outlet 113 and the second outlet 123 to change the rotation direction of the spray arm 30.

[0079] The fluid can be the fluid introduced into the valve body 10, such as washing water. In this embodiment, there is no need to set up a separate drive mechanism or introduce a separate fluid to achieve the purpose of the moving body 20 blocking one of the first outlet 113 and the second outlet 123.

[0080] By designing the circulation channel 10a, the first outlet 113, and the second outlet 123, the moving body 20 moves within the circulation channel 10a under the action of the fluid, and can block one of the first outlet 113 and the second outlet 123, changing the rotation direction of the spray arm 30. Compared with related technologies that add a water distribution valve for multi-channel water level control or add a switching structure to change the rotation direction of the spray arm, the design scheme of the circulation channel 10a, the first outlet 113, the second outlet 123, and the moving body 20 simplifies the structure of the spray device 1 and saves space.

[0081] The movable body 20, under the action of fluid, blocks one of the first outlet 113 and the second outlet 123 of the valve body 10, enabling the first spray chamber 31 and the second spray chamber 33 of the spray arm 30 to spray water switchably, meeting the different spray chamber spraying needs. Specifically, if the first outlet 113 corresponding to the first spray chamber 31 is blocked by the movable body 20, the first spray hole 32 corresponding to the first spray chamber 31 cannot spray water. At this time, the second outlet 123 corresponding to the second spray chamber 33 is not blocked, so the spray arm 30 can spray water through the second spray hole 34 corresponding to the second spray chamber 33. If the second outlet 123 corresponding to the second spray chamber 33 is blocked by the moving body 20, the second spray hole 34 corresponding to the second spray chamber 33 cannot spray water. At this time, the first outlet 113 corresponding to the first spray chamber 31 is not blocked, so the spray arm 30 can spray water through the first spray hole 32 corresponding to the first spray chamber 31.

[0082] By designing that at least part of the circulation channel 10a is at the same height as the spray arm 30 in the height direction, it is beneficial to compress the dimensions of the spray device 1 in the height direction of the spray arm 30, thus saving space. Wherein, if the extension direction of the spray arm 30 is approximately horizontal, the height direction of the spray arm 30 can be vertical.

[0083] Next, see Figures 1 to 4 Further explanation of spray arm 30.

[0084] The first spray chamber 31 is connected to a first spray hole 32, which includes a first guide spray hole 321. The spray direction of the first guide spray hole 321 is set at an angle to the rotation axis of the spray arm 30, and 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 its rotation axis under the reverse driving force of the fluid sprayed from the first guide spray hole 321, so that the fluid can be sprayed to different positions inside the dishwasher during the rotation of the spray arm 30, and the dishes placed in different positions can be cleaned. The first guide spray hole 321 can be located at the end of the spray arm 30 along its length. For example, Figure 2 The first guide spray hole 321 shown is located at the left and / or right end of the spray arm 30.

[0085] The second spray chamber 33 is connected to a second spray hole 34, which includes a second guide spray hole 341. The spray direction of the second guide spray hole 341 is set at an angle to the rotation axis of the spray arm 30, and is used to drive the spray arm 30 to rotate when spraying water. Specifically, when water is sprayed from the second guide spray hole 341, the spray arm 30 rotates around its rotation axis under the reverse driving force of the fluid sprayed from the second guide spray hole 341, so that the fluid can be sprayed to different positions inside the dishwasher during the rotation of the spray arm 30, and the dishes placed in different positions can be cleaned. The second guide spray hole 341 can be located at the end of the spray arm 30 along its length. For example, Figure 2 The second guide spray hole 341 shown is located at the left and / or right end of the spray arm 30.

[0086] 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 during water spraying. Thus, the moving body 20, under the action of the fluid, blocks one of the first water outlet 113 and the second water outlet 123, allowing water to spray from the first guide spray hole 321 and the second guide spray hole 341 respectively. This changes the rotation direction of the spray arm 30, enabling cleaning of the dishes inside the dishwasher from different angles and improving the cleaning effect. For example, Figure 2 The diagram shows a scenario where the first guide spray hole 321 is used to drive the spray arm 30 to rotate clockwise during water spraying, and the second guide spray hole 341 is used to drive the spray arm 30 to rotate counterclockwise during water spraying.

[0087] In some embodiments, the first spray chamber 31 and the second spray chamber 33 are symmetrically arranged along the extension direction of the spray arm 30, which helps to balance the space of the first spray chamber 31 and the second spray chamber 33, and achieve a balance between the water intake when the first spray chamber 31 is filled with water and the water intake when the second spray chamber 33 is filled with water, so that the cleaning effect of the spray device 1 is roughly the same when it is rotated forward and backward.

[0088] In some embodiments, the first spray chamber 31 and the second spray chamber 33 enclose a circulation channel 10a. This allows for the compression of the spray arm 30 in the vertical direction while ensuring sufficient space in the first spray chamber 31 and the second spray chamber 33, thus saving space.

[0089] In some embodiments, the first spray chamber 31 includes a first section 311, and the second spray chamber 33 includes a third section 331. The first section 311 and the third section 331 together enclose a circulation channel 10a. The first section 311 communicates with the first outlet 113, and the third section 331 communicates with the second outlet 123. Designing the first section 311 of the first spray chamber 31 and the third section 331 of the second spray chamber 33 together to enclose the circulation channel 10a helps to balance the spaces of the first spray chamber 31 and the second spray chamber 33, achieving a balance between the amount of water entering the first spray chamber 31 through the first outlet 113 and the amount of water entering the second spray chamber 33 through the second outlet 123, thus ensuring that the cleaning effect of the spray device 1 is approximately the same when rotating in both directions.

[0090] In some embodiments, the first cavity segment 311 and the third cavity segment 331 are centrally symmetrical about the rotation axis of the spray arm 30. In some embodiments, the first spray cavity 31 and the second spray cavity 33 are centrally symmetrical about the rotation axis of the spray arm 30. The rotation axis of the spray arm 30 may be approximately along the height direction of the spray arm 30, and is not limited thereto.

[0091] In some embodiments, the side wall of the first cavity 311 near the circulation channel 10a is connected to the first water outlet 113. That is, the first spray cavity 31 receives water from the side, which requires less water flow force than receiving water from below.

[0092] In some embodiments, the sidewall of the first cavity segment 311 near the circulation channel 10a shares the same sidewall as the sidewall of the circulation channel 10a near the first cavity segment 311.

[0093] In some embodiments, the side wall of the third chamber 331 near the circulation channel 10a is connected to the second water outlet 123. That is, the second spray chamber 33 receives water from the side, which requires less water flow force than receiving water from below.

[0094] In some embodiments, the sidewall of the third cavity 331 near the circulation channel 10a shares the same sidewall as the sidewall of the circulation channel 10a near the third cavity 331.

[0095] In some embodiments, the first spray chamber 31 further includes two second chamber segments 312, which are respectively connected to opposite sides of the first chamber segment 311, so that the space of the first spray chamber 31 is sufficient to ensure the water output of the first spray hole 32.

[0096] In some embodiments, each of the two second chamber sections 312 is provided with a first spray hole 32, which increases the number of water outlet holes when water enters the first spray chamber 31 and increases the cleaning range of the dishwasher.

[0097] In some embodiments, the second spray chamber 33 further includes two fourth chamber segments 332, which are respectively connected to opposite sides of the third chamber segment 331, so that the space of the second spray chamber 33 is sufficient to ensure the water output of the second spray hole 34.

[0098] In some embodiments, each of the two fourth chamber sections 332 is provided with a second spray hole 34, which increases the number of water outlet holes when water enters the second spray chamber 33 and increases the cleaning range of the dishwasher.

[0099] In some embodiments, the second cavity segment 312 and the fourth cavity segment 332 extend in the same direction (e.g., the length direction of the spray arm 30), so that the structure of the spray arm 30 is compact while the space between the first spray cavity 31 and the second spray cavity 33 is sufficient.

[0100] In some embodiments, the connection between the first cavity 311 and the second cavity 312 is raised towards the circulation channel 10a, and the first outlet 113 discharges water toward the raised portion, which is beneficial for the water at the first outlet 113 to be dispersed by the raised portion, and for balancing the amount of water in the second cavity 312 on both sides of the first cavity 311.

[0101] In some embodiments, the connection between the third cavity 331 and the fourth cavity 332 is raised towards the circulation channel 10a, and the second outlet 123 discharges water towards the raised portion, which is beneficial for the water at the second outlet 123 to be dispersed by the raised portion, and for balancing the water volume in the fourth cavity 332 on both sides of the third cavity 331.

[0102] In some embodiments, the first spray chamber 31 and the second spray chamber 33 are sequentially distributed along a first direction y, which is perpendicular to the height direction of the spray arm 30. This eliminates the intersection of the first spray chamber 31 and the second spray chamber 33, making manufacturing more convenient. The first direction y can be the width direction of the spray arm 30.

[0103] In some embodiments, the plurality of first spray holes 32 connected to the first spray chamber 31 may be spaced apart along the extension direction of the spray arm 30, and the plurality of second spray holes 34 connected to the second spray chamber 33 may be spaced apart along the extension direction of the spray arm 30.

[0104] In some embodiments, the plurality of first spray holes 32 and the plurality of second spray holes 34 may be staggered along the extension direction of the spray arm 30.

[0105] Next, see Figures 5 to 12 Further explanation is given regarding valve body 10.

[0106] The water flow can complete a full circle within the circulation channel 10a of the valve body 10; for example, the water flow along the circulation channel 10a... Figure 6The diagram shows a full circle of movement in a counter-clockwise direction.

[0107] Since the moving body 20 is driven by the water flow to move within the circulation channel 10a, the predetermined path of the moving body 20 within the circulation channel 10a is roughly consistent with the direction of the water flow within the circulation channel 10a. For example, the water flow within the circulation channel 10a along... Figure 6 If the movement is shown to be counterclockwise, then the predetermined path of the moving body 20 is along the counterclockwise direction of the circulation channel 10a.

[0108] 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 getting stuck when moving within the circulation channel 10a, thus ensuring the smooth movement of the moving body 20. Furthermore, the inner diameter of the circulation channel 10a can be 1-2 times 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 within the circulation channel 10a.

[0109] In some embodiments, the circulation channel 10a includes a first channel 11 and a second channel 12. The first channel 11 has a first outlet 113, and the second channel 12 has a second outlet 123. The first outlet 113 is located on the outer wall of the first channel 11 and in the water outlet direction of the second channel 12. This facilitates the movement of the mobile body 20 from the second channel 12 into the first channel 11 by the water flow, causing it to be impacted by the water flow and move towards the first outlet 113, where it may stop and block the first outlet 113. Similarly, the second outlet 123 is located on the outer wall of the second channel 12 and in the water outlet direction of the first channel 11. This facilitates the movement of the mobile body 20 from the first channel 11 into the second channel 12 by the water flow, causing it to be impacted by the water flow and move towards the second outlet 123, where it may stop and block the second outlet 123.

[0110] In some embodiments, the first channel 11 includes a first straight channel 114, a first curved channel 116, and a second straight channel 115. The first curved channel 116 connects the first straight channel 114 and the second straight channel 115, and the first outlet 113 is located in the first straight channel 114. Designing the first channel 11 as a straight channel including the first straight channel 114 and the second straight channel 115, compared to a curved channel design, avoids the first channel 11 being too smooth, which could cause the moving body 20 to have difficulty stopping at the first outlet 113 and instead glide past it. Designing the first channel 11 to include the first curved channel 116 ensures the smoothness of movement of the moving body 20 at the first curved channel 116.

[0111] In some embodiments, the first straight channel 114 is perpendicular to the extending direction of the second straight channel 115, and the first curved channel 116 can be an arc channel.

[0112] In some embodiments, the first end of the first straight channel 114 along the water flow direction is connected to the end of the second channel 12 along the water flow direction, the end of the first straight channel 114 along the water flow direction is connected to the first end of the first curved channel 116 along the water flow direction, the end of the first curved channel 116 along the water flow direction is connected to the first end of the second straight channel 115 along the water flow direction, and the end of the second straight channel 115 along the water flow direction is connected to the first end of the second channel 12 along the water flow direction.

[0113] In some embodiments, the first outlet 113 is located at the beginning of the first straight channel 114 along the water flow direction.

[0114] In some embodiments, the second channel 12 includes a third straight channel 124, a second curved channel 126, and a fourth straight channel 125. The second curved channel 126 connects the third straight channel 124 and the fourth straight channel 125, and the second outlet 123 is located in the third straight channel 124. Designing the second channel 12 as a straight channel including the third straight channel 124 and the fourth straight channel 125, compared to a curved channel design, avoids the second channel 12 being too smooth, which could cause the moving body 20 to have difficulty stopping at the second outlet 123 and instead glide across it. Designing the second channel 12 to include the second curved channel 126 ensures the smoothness of the moving body 20 at the second curved channel 126.

[0115] In some embodiments, the third straight channel 124 is perpendicular to the extending direction of the fourth straight channel 125, and the second curved channel 126 can be an arc channel.

[0116] In some embodiments, the third linear channel 124 is perpendicular to the extending direction of the second linear channel 115.

[0117] In some embodiments, the first end of the third straight channel 124 along the water flow direction is connected to the end of the first channel 11 along the water flow direction, the end of the third straight channel 124 along the water flow direction is connected to the first end of the second curved channel 126 along the water flow direction, the end of the second curved channel 126 along the water flow direction is connected to the first end of the fourth straight channel 125 along the water flow direction, and the end of the fourth straight channel 125 along the water flow direction is connected to the first end of the first channel 11 along the water flow direction.

[0118] In some embodiments, the second outlet 123 is located at the beginning of the third straight channel 124 along the water flow direction.

[0119] In some embodiments, the circulation channel 10a further has a first low position 112 and a second low position 122, with the first low position 112, the first outlet 113, the second low position 122, and the second outlet 123 arranged sequentially along the circumference of the circulation channel 10a. The movable body 20 is configured such that when the movable body 20 is located at the first low position 112 and water enters the valve body 10, the movable body 20 is driven by the water flow to block the first outlet 113; when the movable body 20 is located at the second low position 122 and water enters the valve body 10, the movable body 20 is driven by the water flow to block the second outlet 123. This allows for a clear determination of whether the movable body 20 blocks the first outlet 113 or the second outlet 123, enabling both outlets to be blocked, thereby achieving switching of the spray chamber and changing the rotation direction of the spray arm 30.

[0120] In some embodiments, when the valve body 10 stops receiving water, the moving body 20, having lost the fluid's influence, falls back from the second outlet 123 to the first low position 112 or from the first outlet 113 to the second low position 122. The first low position 112 and the second low position 122 are low positions within the circulation channel 10a, making it less likely that the moving body 20 will deviate from the first low position 112 or the second low position 122 due to the small flow rate of water discharged from the circulation channel 10a when the valve body 10 stops receiving water.

[0121] In some embodiments, the valve body 10 has a water inlet. The movable body 20 is configured such that when water enters through the water inlet, the movable body 20 is driven by the water flow to move within the circulation channel 10a, and under the action of the fluid, blocks one of the first water outlet 113 and the second water outlet 123, thereby changing the rotation direction of the spray arm 30.

[0122] In some embodiments, the valve body 10 has two inlets. For example, the valve body 10 has a first inlet 111 and a second inlet 121. The movable body 20 is configured such that when water enters through the first inlet 111 and the second inlet 121, the movable body 20 is driven by the water flow to move within the circulation channel 10a, and under the action of the fluid, blocks one of the first outlet 113 and the second outlet 123, thereby changing the rotation direction of the spray arm 30.

[0123] The valve body 10 is provided with a circulation channel 10a, a first water inlet 111, and a second water inlet 121, for a total of two water inlets. Both water inlets are used when the valve body 10 is filled with water and are used when the valve body 10 is stopped filling with water. The two water inlets, compared to the valve body 10 having only a single water inlet, facilitate the movement of the moving body 20 along the predetermined route of the circulation channel 10a, resulting in a more balanced structure.

[0124] Furthermore, since the valve body 10 only has a single water inlet and requires balancing during use, having two water inlets on the valve body 10 facilitates the balance of various parts during use, eliminating the need for balancing and making it more convenient to use. For example, the spray arm 30 is fixed relative to the valve body 10. When the spray arm 30 rotates, the valve body 10 will also rotate. Having two water inlets (first inlet 111 and second inlet 121) on the valve body 10 helps maintain balance during rotation. Compared to a valve body with only a single water inlet requiring balancing to prevent unilateral wear during rotation, having two water inlets eliminates the need for balancing, making it more convenient to use.

[0125] In some embodiments, the first inlet 111 and the second inlet 121 may be approximately centrally symmetrical about the central axis x of the valve body 10 to further achieve balance of various parts of the valve body 10 during use, omitting the balancing step of the valve body 10. The central axis x of the valve body 10 can be the line connecting the center points of each cross-section of the valve body 10 from bottom to top. In some embodiments, the central axis x of the valve body 10 may be approximately along the height direction of the spray arm 30, without limitation.

[0126] In some embodiments, the first low position 112 and the second low position 122 may be centrally symmetrical about the central axis x of the valve body 10, so as to facilitate the balance of various parts of the valve body 10 during use and omit the balancing step of the valve body 10.

[0127] In some embodiments, the first outlet 113 and the second outlet 123 may be centrally symmetrical about the central axis x of the valve body 10, so as to facilitate the balance of various parts of the valve body 10 during use and omit the balancing step of the valve body 10.

[0128] In some embodiments, the valve body 10 is centrally symmetrical about its central axis x, that is, the valve body 10 has a centrally symmetrical structure about its central axis x, so as to facilitate the balance of various parts of the valve body 10 during use and omit the balancing step of the valve body 10.

[0129] In some embodiments, the first inlet 111, the first outlet 113, the second inlet 121, and the second outlet 123 are arranged sequentially along the circumference of the circulation channel 10a. Thus, when water enters the valve body 10, that is, when water enters both the first inlet 111 and the second inlet 121, compared to the circulation channel 10a having only a single inlet and the movement of the moving body 20 at different positions being driven by water entering through that single inlet, the arrangement of multiple inlets can shorten the action path of the moving body 20, making it more conducive to driving the moving body 20 to move.

[0130] It should be noted that even though the valve body 10 has two inlets, a first inlet 111 and a second inlet 121, the water flowing through these two inlets will move in the same direction of rotation after passing through the circulation channel 10a; for example, Figure 6 The water flow shown enters through the first inlet 111 and the second inlet 121 and moves in a counterclockwise direction after entering the circulation channel 10a.

[0131] Because the water flow within the circulation channel 10a moves in a complete circle, the direction of the water flow within the circulation channel 10a and the predetermined route of the moving body 20 within the circulation channel 10a can be consistent with the circumferential setting direction of the first inlet 111 - first outlet 113 - second inlet 121 - second outlet 123; for example... Figure 6 The first inlet 111, the first outlet 113, the second inlet 121, and the second outlet 123 shown are arranged counterclockwise along the circumference of the circulation channel 10a. The direction of water flow in the circulation channel 10a and the predetermined route of the moving body 20 in the circulation channel 10a are also counterclockwise.

[0132] The inner diameters of the first inlet 111, the second inlet 121, the first outlet 113, and the second outlet 123 are all smaller than the outer diameter of the moving body 20, so as to prevent the moving body 20 from deviating from the predetermined route.

[0133] In some embodiments, the first water inlet 111 and the second water inlet 121 are located on the inner wall of the circulation channel 10a. That is, the circulation channel 10a receives water from the side, which requires less force from the water flow compared to receiving water from below.

[0134] In some embodiments, the circulation channel 10a has a first inlet 111, a second inlet 121, a first low position 112, and a second low position 122. The first inlet 111, the first low position 112, the first outlet 113, the second inlet 121, the second low position 122, and the second outlet 123 are arranged sequentially along the circumference of the circulation channel 10a. The movable body 20 is configured such that when the movable body 20 is located at the first low position 112 and water enters the first inlet 111 and the second inlet 121, the movable body 20 is driven by the water flow and blocks the first outlet 113; when the movable body 20 is located at the second low position 122 and water enters the first inlet 111 and the second inlet 121, the movable body 20 is driven by the water flow and blocks the second outlet 123.

[0135] When the first inlet 111 and the second inlet 121 stop receiving water, the moving body 20, having lost the fluid's effect, falls back to the first low position 112 or the second low position 122.

[0136] In this embodiment, the movable body 20 is configured such that: when the movable body 20 is located in the first low position 112 and water enters through the first inlet 111 and the second inlet 121, the movable body 20 is driven by the water flow and blocks the first outlet 113; when water enters through the first inlet 111 and the second inlet 121, the movable body 20 loses the fluid's effect and falls back from the first outlet 113 through the second inlet 121 to the second low position 122. When the movable body 20 is located in the second low position 122 and water enters through the first inlet 111 and the second inlet 121, the movable body 20 is driven by the water flow and blocks the second outlet 123; when water enters through the first inlet 111 and the second inlet 121, the movable body 20 loses the fluid's effect and falls back from the second outlet 123 through the first inlet 111 to the first low position 112.

[0137] The spray device 1 can be connected to the washing pump during use. Whether water enters or stops at the first water inlet 111 and the second water inlet 121 can be controlled by starting or stopping the washing pump. Specifically, when the washing pump is started, water enters both the first water inlet 111 and the second water inlet 121; when the washing pump is stopped, water enters both the first water inlet 111 and the second water inlet 121.

[0138] The usage process of this application embodiment can be as follows: If the washing pump is started, water enters through the first inlet 111 and the second inlet 121. The moving body 20 moves from the first low position 112 to the first outlet 113 under the action of the fluid and blocks the first outlet 113. At this time, the water in the valve body 10 exits through the second outlet 123. If the washing pump stops, the first inlet 111 and the second inlet 121 stop entering water. The water accumulated in the valve body 10 is discharged through the first inlet 111 and the second inlet 121. The moving body 20 loses the fluid action and falls back to the second low position 122 from the first outlet 113 through the second inlet 121 under the action of gravity.

[0139] When the washing pump restarts, water enters through the first inlet 111 and the second inlet 121. The moving body 20 moves from the second low position 122 to the second outlet 123 under the action of the fluid and blocks the second outlet 123. At this time, the water in the valve body 10 exits through the first outlet 113. If the washing pump stops, water enters through the first inlet 111 and the second inlet 121, and the water accumulated in the valve body 10 is discharged through the first inlet 111 and the second inlet 121. The moving body 20 loses the fluid action and, under the action of gravity, falls back to the first low position 112 after passing through the first inlet 111 from the second outlet 123. By repeatedly starting and stopping the washing pump, alternating water output from the first outlet 113 and the second outlet 123 can be achieved.

[0140] In some embodiments, if the circulation channel 10a includes a first channel 11 and a second channel 12, the first inlet 111 and the first low position 112 may be located in the second curved channel 126 of the second channel 12, and the second inlet 121 and the second low position 122 may be located in the first curved channel 116 of the first channel 11.

[0141] In some embodiments, the inner bottom wall of the first channel 11 includes a first guide portion 41 and a second guide portion 43. Along the water flow direction, the first guide portion 41 is in a descending position, and the second guide portion 43 is in an ascending position, forming a second low position 122 between the first guide portion 41 and the second guide portion 43. The first guide portion 41 is used to guide the moving body 20 to the second low position 122 when it falls back from the first outlet 113. By designing the inner bottom wall of the circulation channel 10a to descend or ascend, the movement path of the moving body 20 can be guided, making the design more convenient.

[0142] In some embodiments, the inner bottom wall of the second channel 12 includes a third guide portion 51 and a fourth guide portion 53. Along the water flow direction, the third guide portion 51 is in a descending position, and the fourth guide portion 53 is in an ascending position, forming a first low position 112 between the third guide portion 51 and the fourth guide portion 53. The third guide portion 51 is used to guide the moving body 20 to the first low position 112 when it falls back from the second outlet 123. By designing the inner bottom wall of the circulation channel 10a to descend or ascend, the movement path of the moving body 20 can be guided, making the design more convenient. The first low position 112 and the second low position 122 are located on the inner bottom wall of the circulation channel 10a. After the design of the first guide portion 41 and the second guide portion 43, the third guide portion 51 and the fourth guide portion 53, the first low position 112 and the second low position 122 are directly the two low positions in the inner bottom wall of the valve body 10.

[0143] It should be noted that in actual design, the degree of descent of the first guide part 41, the degree of ascent of the second guide part 43, the degree of descent of the third guide part 51, and the degree of ascent of the fourth guide part 53 can be reasonably designed so that the degree of descent of the first low position 112 between the first guide part 41 and the second guide part 43 and the degree of descent of the second low position 122 between the third guide part 51 and the fourth guide part 53 is appropriate, so that the moving body 20 can smoothly stay at the first low position 112 or the second low position 122 when the valve body 10 stops water intake, and when the valve body 10 is water intake, it can move from the first low position 112 toward the first outlet 113 or from the second low position 122 toward the second outlet 123 under the drive of the water flow.

[0144] In some embodiments, along the water flow direction, the first guide portion 41 is located between the first outlet 113 and the second low position 122, so that when the valve body 10 stops water intake and loses fluid action, the moving body 20 at the first outlet 113 falls to the second low position 122 under the guidance of the first guide portion 41, so that the moving body 20 moves along a predetermined route.

[0145] In some embodiments, along the water flow direction, the first guide portion 41 includes a first guide rib 411 and a second guide rib 412 connected together. Along the water flow direction, the inclination of the first guide rib 411 is greater than the inclination of the second guide rib 412. That is, when the moving body 20 passes between the first outlet 113 and the second low position 122, under the action of the water flow, it will first pass the steeper slope of the first guide rib 411 and then pass the gentler slope of the second guide rib 412. In this way, the first guide rib 411 can enable the moving body 20 to move smoothly and quickly, preventing the moving body 20 from stopping, while the second guide rib 412 can slow down the moving speed of the moving body 20, which is conducive to its stopping at the second low position 122.

[0146] In some embodiments, the first guide rib 411 is arranged adjacent to the first outlet 113, and the projection of the moving body 20 when blocking the first outlet 113 is located on the first guide rib 411. The above design is beneficial for the moving body 20 at the first outlet 113 to move directly under the guidance of the first guide rib 411 when the valve body 10 stops water intake and loses fluid action, so as to realize that the moving body 20 moves along a predetermined route.

[0147] In some embodiments, the first guide portion 41 is disposed adjacent to the outer wall of the circulation channel 10a to form a first water passage 36 on the side of the second water inlet 121. The arrangement of the first water passage 36 can reduce the obstruction of the first guide portion 41 to the water inlet 121, and reduce the obstruction of the first guide portion 41 to the discharge of accumulated water from the second water inlet 121. The radial dimension of the first water passage 36 is smaller than the outer diameter of the moving body 20 to prevent the moving body 20 from falling into the first water passage 36 and getting stuck.

[0148] In some embodiments, along the water flow direction, the third guide portion 51 is located between the second outlet 123 and the first low position 112, so that when the valve body 10 stops water intake and loses fluid action, the moving body 20 at the second outlet 123 falls to the first low position 112 under the guidance of the third guide portion 51, so that the moving body 20 moves along a predetermined route.

[0149] In some embodiments, along the water flow direction, the third guide portion 51 includes a fifth guide rib 511 and a sixth guide rib 512 connected together. Along the water flow direction, the inclination of the fifth guide rib 511 is greater than the inclination of the sixth guide rib 512. That is, when the moving body 20 passes between the second outlet 123 and the first low position 112, under the action of the water flow, it will first pass the steeper slope of the fifth guide rib 511 and then the gentler slope of the sixth guide rib 512. Thus, the fifth guide rib 511 enables the moving body 20 to move smoothly and quickly, preventing it from stopping, while the sixth guide rib 512 slows down the moving body 20's movement speed, facilitating its stopping at the first low position 112.

[0150] In some embodiments, the fifth guide rib 511 is arranged adjacent to the second outlet 123, and the projection of the moving body 20 when blocking the second outlet 123 is located on the fifth guide rib 511. The above design is beneficial to the moving body 20 at the second outlet 123, which moves directly under the guidance of the fifth guide rib 511 when the valve body 10 stops water intake and loses fluid action, so as to realize that the moving body 20 moves along a predetermined route.

[0151] In some embodiments, the third guide portion 51 is disposed adjacent to the outer wall of the circulation channel 10a to form a second water passage 37 on the side of the first water inlet 111. The arrangement of the second water passage 37 can reduce the obstruction of the third guide portion 51 to the water inlet 111, and reduce the obstruction of the third guide portion 51 to the discharge of accumulated water from the first water inlet 121. The radial dimension of the second water passage 37 is smaller than the outer diameter of the moving body 20 to prevent the moving body 20 from falling into the second water passage 37 and getting stuck.

[0152] In some embodiments, along the water flow direction, the second guide portion 43 is located between the second low position 122 and the second outlet 123, so that when water enters the valve body 10, the moving body 20 at the second low position 122 moves to the second outlet 123 under the guidance of the second guide portion 43, so that the moving body 20 moves along a predetermined route.

[0153] In some embodiments, along the water flow direction, the second guide portion 43 includes a third guide rib 431 and a fourth guide rib 432. Along the water flow direction, the height of the third guide rib 431 gradually increases, and the highest point of the third guide rib 431 is connected to the fourth guide rib 432. The height of the fourth guide rib 432 remains unchanged. That is, when the moving body 20 passes between the second low position 122 and the second outlet 123, it will first pass the sloping third guide rib 431 under the action of water flow, and then pass the non-sloping fourth guide rib 432. In this way, the third guide rib 431 can guide the moving body 20 to rise to approach the height of the second outlet 123, while the fourth guide rib 432 is flat. Compared with the uphill design of the entire fourth guide part 53, the slope of the third guide part 51 near the second outlet 123 is more obvious. This is beneficial for the moving body 20 at the second outlet 123 to move under the guidance of the third guide part 51 when the valve body 10 stops water intake, rather than sliding back under the guidance of the second guide part 43.

[0154] In some embodiments, along the water flow direction, the fourth guide portion 53 is located between the first low position 112 and the first outlet 113, so that when water enters the valve body 10, the moving body 20 at the first low position 112 moves to the first outlet 113 under the guidance of the fourth guide portion 53, so that the moving body 20 moves along a predetermined route.

[0155] In some embodiments, along the water flow direction, the fourth guide portion 53 includes a seventh guide rib 531 and an eighth guide rib 532. Along the water flow direction, the height of the seventh guide rib 531 gradually increases, and the highest point of the seventh guide rib 531 is connected to the eighth guide rib 532. The height of the eighth guide rib 532 remains unchanged. That is, when the moving body 20 passes between the first low position 112 and the first outlet 113, it will first pass the sloping seventh guide rib 531 under the action of water flow, and then pass the unsloping eighth guide rib 532. In this way, the seventh guide rib 531 can guide the moving body 20 to rise to approach the height of the first outlet 113, while the eighth guide rib 532 is flat. Compared with the uphill design of the entire fourth guide section 53, the slope of the first guide section 41 near the first outlet 113 is more obvious. This is beneficial for the moving body 20 at the first outlet 113 to move under the guidance of the first guide section 41 when the valve body 10 stops water intake, rather than sliding back under the guidance of the fourth guide section 53.

[0156] In some embodiments, the eighth guide rib 532 is connected to the first guide rib 411 to form a step, and the moving body 20 rises from the eighth guide rib 532 to the first guide rib 411 under the action of water flow. Thus, near the first outlet 113, the slope of the first guide rib 411 is more obvious, which is beneficial for the moving body 20 at the first outlet 113 to move under the guidance of the first guide rib 411 when the valve body 10 stops water intake, rather than sliding back to the eighth guide rib 532.

[0157] In some embodiments, the fourth guide rib 432 is connected to the fifth guide rib 511 to form a step, and the moving body 20 rises from the fourth guide rib 432 to the fifth guide rib 511 under the action of water flow. Thus, near the second outlet 123, the slope of the fifth guide rib 511 is more obvious, which is beneficial for the moving body 20 at the second outlet 123 to move under the guidance of the fifth guide rib 511 when the valve body 10 stops receiving water, rather than sliding back to the fourth guide rib 432.

[0158] In some embodiments, the first guide portion 41 and the third guide portion 51 are centrally symmetrical about the central axis x of the valve body 10. In some embodiments, the second guide portion 43 and the fourth guide portion 53 are centrally symmetrical about the central axis x of the valve body 10.

[0159] In some embodiments, the inner top wall of the circulation channel 10a is provided with a first upper guide structure 60. Along the water flow direction, the protrusion height of the first upper guide structure 60 gradually decreases and is located between the first low position 112 and the first outlet 113. The first upper guide structure 60 is used to guide the moving body 20 to move to the first outlet 113 under the action of the water flow.

[0160] The first upper guide structure 60 protruding from the inner top wall of the circulation channel 10a guides the movement path of the moving body 20, which can reduce the design requirements for the pipe shape of the circulation channel 10a. Since the first upper guide structure 60 protruding from the inner top wall of the circulation channel 10a occupies less space than the circulation channel 10a, the design requirements are relatively reduced.

[0161] It should be noted that if the flow height of the circulation channel 10a is greater than the outer diameter of the moving body 20, or if the flow height of the structural section of the first upper guide structure 60 corresponding to the circulation channel 10a is greater than the outer diameter of the moving body 20, the moving body 20 may be made of at least part of a buoyancy material, so that when water enters the valve body 10, the moving body 20 can move along the first upper guide structure 60 on the inner top wall under the action of the fluid thrust and buoyancy, so that it can move from the first low position 112 to the first outlet 113 under the guidance of the first upper guide structure 60.

[0162] In some embodiments, the inner top wall of the circulation channel 10a is provided with a second upper guide structure 70. Along the water flow direction, the protrusion height of the second upper guide structure 70 gradually decreases and is located between the second low position 122 and the second outlet 123. The second upper guide structure 70 is used to guide the moving body 20 to move to the second outlet 123 under the action of the water flow.

[0163] The second upper guide structure 70 protruding from the inner top wall of the circulation channel 10a guides the movement path of the moving body 20, which can reduce the design requirements for the pipe shape of the circulation channel 10a. Since the second upper guide structure 70 protruding from the inner top wall of the circulation channel 10a occupies less space than the circulation channel 10a, the design requirements are relatively reduced.

[0164] It should be noted that if the flow height of the circulation channel 10a is greater than the outer diameter of the moving body 20, or if the flow height of the structural section of the second upper guide structure 70 corresponding to the circulation channel 10a is greater than the outer diameter of the moving body 20, the moving body 20 may be made at least partially of a buoyancy material, so that when water enters through the first inlet 111 and the second inlet 121, the moving body 20 can move along the second upper guide structure 70 on the inner top wall under the action of the fluid's thrust and buoyancy, so that it can move from the second low position 122 to the second outlet 123 under the guidance of the second upper guide structure 70.

[0165] It should be noted that the first guide section 41, the second guide section 43, the third guide section 51, the fourth guide section 53, the first upper guide structure 60, and the second upper guide structure 70 can all be arranged in a single row or in multiple rows with intervals, and there is no limitation on this.

[0166] In some embodiments, along the water flow direction, between the first inlet 111 and the first outlet 113, the flow height of the circulation channel 10a is minimal at the first low position 112. Along the water flow direction, between the first inlet 111 and the first low position 112, because the flow height at the first low position 112 is smaller, the water flow will generate a greater impact force when it reaches this point, which is beneficial for propelling the moving body 20 at the first low position 112. Along the water flow direction, between the first low position 112 and the first outlet 113, because the flow height at the first low position 112 is smaller, and the subsequent flow height increases, it is beneficial for the smooth movement of the moving body 20.

[0167] In some embodiments, along the water flow direction, the flow height of the circulation channel 10a is minimal at the second low position 122 between the second inlet 121 and the second outlet 123. Because the flow height is smaller at the second low position 122, the water flow generates a greater impact force when it reaches this point, which facilitates the movement of the moving body 20 at the second low position 122. Along the water flow direction, between the second low position 122 and the second outlet 123, the flow height is smaller at the second low position 122, while the subsequent flow height increases, which facilitates the smooth movement of the moving body 20.

[0168] In some embodiments, in the height direction of the spray arm 30, the outer top surface 14 of the spray arm 30 corresponding to the circulation channel 10a is flush with the outer top surface 38 of other parts of the spray arm 30, and the outer bottom surface 15 of the spray arm 30 corresponding to the circulation channel 10a is lower than the outer bottom surface 39 of other parts of the spray arm 30. Since the circulation channel 10a contains the moving body 20, its height dimension is difficult to compress, and the flow height of the circulation channel 10a is usually greater than the height of the spray chamber inside the spray arm 30. The above design is beneficial to the outer top surface of the spray arm 30 being flush, while only the outer bottom surface protrudes at the part corresponding to the circulation channel 10a. This is beneficial to compress the height of the spray device 1 while realizing that the first outlet 113 and the second outlet 123 at the upper part of the circulation channel 10a are connected to the first spray chamber 31 and the second spray chamber 33, respectively.

[0169] In some embodiments, the valve body 10 may further include a water inlet pipe 13, which is disposed in the middle of the valve body 10 to form an annular circulation channel 10a. The water inlet pipe 13 is used to supply water into the circulation channel 10a. Specifically, the water inlet pipe 13 has an inlet (e.g., a first inlet 111 and a second inlet 121) communicating with the circulation channel 10a, and water is supplied into the circulation channel 10a from the inlet. In some embodiments, the water inlet pipe 13 is located above the circulation channel 10a.

[0170] In some embodiments, the first inlet 111 is adjacent to the first low position 112, and the inlet pipe 13 is provided with a first guide strip 131 at the first inlet 111. The first guide strip 131 extends tangentially along the annular wall of the inlet pipe 13 to form a tangential water flow toward the first low position 112. In this way, water flowing into the circulation channel 10a from the first inlet 111 can flow toward the first low position 112, thereby controlling the direction of water flow in the circulation channel 10a, such as controlling the direction of water flow in the circulation channel 10a along... Figure 6 The direction shown is counterclockwise.

[0171] In some embodiments, the second inlet 121 is adjacent to the second low position 122, and the inlet pipe 13 is provided with a second guide strip 132 at the second inlet 121. The second guide strip 132 extends tangentially along the annular wall of the inlet pipe 13 to form a tangential water flow toward the second low position 122. In this way, water flowing into the circulation channel 10a from the second inlet 121 can flow toward the second low position 122, thereby controlling the direction of water flow in the circulation channel 10a, such as controlling the direction of water flow in the circulation channel 10a along... Figure 6 The direction shown is counterclockwise.

[0172] In some embodiments, a third guide bar 133 is provided around the periphery of the water inlet pipe 13. The third guide bar 133 is located within the circulation channel 10a and adjacent to the second water inlet 121. The third guide bar 133 has a raised portion protruding towards the outer wall of the circulation channel 10a. The raised portion prevents the movement of the moving body 20 at the first water outlet 113 from being too smooth, and facilitates the moving body 20 to stay at the first water outlet 113.

[0173] In some embodiments, the raised portion of the third guide bar 133 is a right-angled raised portion. Compared with a rounded raised portion, the right-angled raised portion has a better blocking effect on the moving body 20, and is more conducive to the moving body 20 stopping at the first outlet 113.

[0174] In some embodiments, a fourth guide bar 134 is provided around the periphery of the water inlet pipe 13. The fourth guide bar 134 is located within the circulation channel 10a and adjacent to the first water inlet 111. The fourth guide bar 134 has a raised portion protruding towards the outer wall of the circulation channel 10a. The raised portion prevents the movement of the moving body 20 at the second water outlet 123 from being too smooth, and facilitates the moving body 20 to stay at the second water outlet 123.

[0175] In some embodiments, the raised portion of the fourth guide bar 134 is a right-angled raised portion. Compared with a rounded raised portion, the right-angled raised portion has a better blocking effect on the moving body 20, and is more conducive to the moving body 20 stopping at the second outlet 123.

[0176] In some embodiments, the inlet pipe 13, the third guide strip 133, and the fourth guide strip 134 combine to form the inner wall of the circulation channel 10a, and the inner wall of the circulation channel 10a is adapted to the shape of the outer wall of the circulation channel 10a. In this way, it is beneficial that the flow width of each part in the circulation channel 10a is approximately the same, so that the moving body 20 is not easily jammed due to the change in its flow width when moving in the circulation channel 10a.

[0177] In some embodiments, the spray arm 30 has a mounting position (not shown in the figure) in the middle, and the valve body 10 is at least installed in the mounting position. That is, the valve body 10 and the spray arm 30 are separately provided. In this case, the valve body 10 and the spray arm 30 can be connected by welding, snap-fitting, etc., and there is no limitation on this.

[0178] In some embodiments, the valve body 10 and the spray arm 30 are integrally formed, thereby eliminating the assembly and alignment process between the valve body 10 and the spray arm 30 and saving assembly time. For example, Figure 12The valve body 10 and spray arm 30 shown are both of a split structure, with the upper part of the valve body 10 and the upper part of the spray arm 30 being integrally formed, and the lower part of the valve body 10 and the lower part of the spray arm 30 being integrally formed. Thus, when assembling the spray device 1, the movable body 20 can be placed in the circulation channel 10a first, and then the assembly of the upper part of the valve body 10 with the upper part of the spray arm 30, and the assembly of the lower part of the valve body 10 with the lower part of the spray arm 30, can be connected by welding, snap-fitting, or other methods.

[0179] Next, see Figure 3 Further explanation is given regarding the moving body 20.

[0180] The moving body 20 can be approximately spherical to facilitate its smooth movement within the circulation channel 10a. The inner diameters of the first inlet 111, the second inlet 121, the first outlet 113, and the second outlet 123 are all smaller than the outer diameter of the moving body 20 to prevent it from deviating from its intended path.

[0181] This application embodiment also provides a dishwasher, which includes the spray device 1 described above, a housing and an inner liner, the inner liner being disposed inside the housing and having a washing chamber, and the spray arm 30 being located in the washing chamber.

[0182] In the description of this application, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "multiple" means at least two, for example, two, three, four, etc. "And / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship.

[0183] The above-disclosed embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of this application. Therefore, any equivalent variations made in accordance with the claims of this application shall still fall within the scope of this application.

Claims

1. A spray device for a dishwasher, characterized in that, include: The spray arm has 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. The driving direction of the first spray hole and the driving direction of the second spray hole are opposite. A valve body, at least partially disposed within the spray arm, the valve body including a circulation channel, a first water outlet and a second water outlet, the first spray chamber communicating with the first water outlet, and the second spray chamber communicating with the second water outlet; in the height direction of the spray arm, at least a portion of the circulation channel is located at the same height as the spray arm; as well as, A movable body is movably disposed within the circulation channel of the valve body. The movable body is configured such that when water enters the valve body, the movable body is driven by the water flow to move within the circulation channel and, under the action of the fluid, blocks one of the first outlet and the second outlet to change the rotation direction of the spray arm.

2. The spraying device according to claim 1, characterized in that, The circulation channel includes: The first channel, having the first water outlet; and, The second channel has the second water outlet; The first water outlet is located on the outer wall of the first channel and in the water outlet direction of the second channel, and the second water outlet is located on the outer wall of the second channel and in the water outlet direction of the first channel.

3. The spraying device according to claim 2, characterized in that, The inner bottom wall of the first channel includes a first guide portion and a second guide portion. Along the water flow direction, the first guide portion is in a downward trend, and the second guide portion is in an upward trend, forming a second low position between the first guide portion and the second guide portion.

4. The spraying device according to claim 3, characterized in that, The inner bottom wall of the second channel includes a third guide portion and a fourth guide portion. Along the water flow direction, the third guide portion is in a downward trend, and the fourth guide portion is in an upward trend, forming a first low position between the third guide portion and the fourth guide portion.

5. The spraying device according to claim 4, characterized in that, The first low position, the first water outlet, the second low position, and the second water outlet are arranged sequentially along the circumference of the circulation channel; The movable body is configured such that when the movable body is in the first low position and water enters the valve body, the movable body is driven by the water flow and blocks the first water outlet; when the movable body is in the second low position and water enters the valve body, the movable body is driven by the water flow and blocks the second water outlet.

6. The spraying device according to claim 5, characterized in that, When the valve body stops receiving water, the moving body, having lost the fluid's influence, falls back from the second outlet to the first low position or from the first outlet to the second low position.

7. The spraying device according to claim 4, characterized in that, The first guide portion includes a first guide rib and a second guide rib connected together. Along the water flow direction, the inclination of the first guide rib is greater than the inclination of the second guide rib. And / or, the third guide portion includes a fifth guide rib and a sixth guide rib connected together, and along the water flow direction, the inclination of the fifth guide rib is greater than the inclination of the sixth guide rib; And / or, the first guide portion and the third guide portion are centrally symmetrical about the central axis of the valve body.

8. The spraying device according to claim 4, characterized in that, The second guide portion includes a third guide rib and a fourth guide rib. Along the water flow direction, the height of the third guide rib gradually increases, and the highest point of the third guide rib connects to the fourth guide rib. The height of the fourth guide rib remains unchanged. And / or, the fourth guide portion includes a seventh guide rib and an eighth guide rib. Along the water flow direction, the height of the seventh guide rib gradually increases, and the highest point of the seventh guide rib connects to the eighth guide rib, while the height of the eighth guide rib remains unchanged. And / or, the second guide portion and the fourth guide portion are centrally symmetrical about the central axis of the valve body.

9. The spraying device according to claim 4, characterized in that, The fourth guide portion includes an eighth guide rib, and the first guide portion includes a first guide rib. The eighth guide rib is connected to the first guide rib and forms a step. Under the action of water flow, the moving body rises from the eighth guide rib to the first guide rib. And / or, the second guide portion includes a fourth guide rib, the third guide portion includes a fifth guide rib, the fourth guide rib and the fifth guide rib are connected to form a step, and the moving body rises from the fourth guide rib to the fifth guide rib under the action of water flow.

10. The spraying device according to claim 9, characterized in that, The first guide rib is disposed adjacent to the first water outlet, and the projection of the movable body when blocking the first water outlet is located on the first guide rib. And / or, the fifth guide rib and the second outlet are arranged adjacent to each other, and the projection of the moving body when blocking the second outlet is located on the fifth guide rib.

11. The spraying device according to claim 4, characterized in that, The inner top wall of the circulation channel is provided with a first upper guide structure. Along the water flow direction, the protrusion height of the first upper guide structure gradually decreases and is located between the first low position and the first water outlet. The first upper guide structure is used to guide the moving body to the first water outlet under the action of the water flow. And / or, the inner top wall of the circulation channel is provided with a second upper guide structure. Along the water flow direction, the protrusion height of the second upper guide structure gradually decreases and is located between the second low position and the second water outlet. The second upper guide structure is used to guide the moving body to the second water outlet under the action of the water flow.

12. The spraying device according to claim 2, characterized in that, The valve body also includes a water inlet pipe, which is disposed in the middle of the valve body to form an annular circulation channel. The water inlet pipe has a first water inlet and a second water inlet, the first water inlet being connected to the second channel and the second water inlet being connected to the first channel.

13. The spraying device according to claim 12, characterized in that, The first water inlet is adjacent to the first low position. The water inlet pipe is provided with a first guide strip at the first water inlet. The first guide strip extends tangentially along the annular wall of the water inlet pipe to form a tangential water flow toward the first low position. And / or, the second inlet is adjacent to the second low position, and the inlet pipe is provided with a second guide strip at the second inlet, the second guide strip extending tangentially along the annular wall of the inlet pipe to form a tangential water flow toward the second low position.

14. The spraying device according to claim 12, characterized in that, A third guide bar is provided around the water inlet pipe. The third guide bar is located inside the circulation channel and adjacent to the second water inlet. The third guide bar has a raised portion protruding towards the outer wall of the circulation channel. And / or, a fourth guide strip is provided around the water inlet pipe, the fourth guide strip is located in the circulation channel and adjacent to the first water inlet, and the fourth guide strip has a raised portion protruding toward the outer wall of the circulation channel.

15. The spraying device according to claim 14, characterized in that, The water inlet pipe, the third guide strip, and the fourth guide strip together form the inner wall of the circulation channel, and the inner wall of the circulation channel is adapted to the shape of the outer wall of the circulation channel.

16. The spraying device according to claim 12, characterized in that, The first guide portion is disposed adjacent to the outer wall of the circulation channel to form a first water passage on the second inlet side; And / or, the third guide portion is disposed adjacent to the outer wall of the circulation channel to form a second water passage on the first inlet side.

17. The spraying device according to claim 2, characterized in that, The first spray chamber and the second spray chamber are symmetrically arranged along the extension direction of the spray arm and surround the circulation channel.

18. The spraying device according to claim 17, characterized in that, The first spray chamber includes a first cavity segment, which is connected to the first water outlet; the second spray chamber includes a third cavity segment, which is connected to the second water outlet; the first cavity segment and the third cavity segment together enclose the circulation channel. And / or, the first spray chamber further includes a second chamber section, the first chamber section is connected to the second chamber section, the connection between the first chamber section and the second chamber section is raised in the direction close to the circulation channel, and the first water outlet discharges water toward the raised part; And / or, the second spray chamber further includes a fourth chamber section, the third chamber section is connected to the fourth chamber section, the connection between the third chamber section and the fourth chamber section is raised in the direction close to the circulation channel, and the second water outlet discharges water toward the raised part.

19. The spraying device according to claim 1, characterized in that, The spray arm has a mounting position in the middle, and the valve body is at least partially installed in the mounting position; Alternatively, the valve body and the spray arm may be integrally formed.

20. A dishwasher, characterized in that, The device includes a spraying apparatus, a housing, and an inner liner as described in any one of claims 1 to 19, wherein the inner liner is disposed within the housing and has a washing chamber, and the spray arm is located in the washing chamber.

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