Shunt valve and water cup assembly with same

Abstract

The invention provides a shunt valve and a water cup assembly with the shunt valve, and belongs to the technical field of dishwashers, the shunt valve comprises a valve body, a shunt shifting piece, a driving assembly and a positioning assembly, the positioning assembly comprises a first positioning part and a second positioning part, the valve body is provided with a shunt cavity and a mounting cavity, the mounting cavity is connected to the outer side wall of the shunt cavity, and the shunt shifting piece is arranged in the shunt cavity. The mounting cavity is provided with a via hole communicated with the water diversion cavity; the water diversion plectrum is inserted into and rotationally connected with the water diversion cavity, and a plurality of special-shaped water diversion holes are formed in the water diversion plectrum; the fixed end of the driving assembly is connected to the mounting cavity, and the driving end of the driving assembly penetrates through the via hole and then is connected to the water distribution shifting piece. The first positioning part is connected with the water diversion plectrum and the valve body, and the second positioning part is connected with the water diversion plectrum and the driving end of the driving assembly. The first positioning part and the second positioning part are used for limiting the axial freedom degree and the radial freedom degree of the water distribution shifting piece respectively, the assembling precision of the water distribution shifting piece can be ensured, the assembling technology of the water distribution valve assembly is improved, and the problem of vibration and abnormal sound in the running process of a water distribution valve is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dishwashers, in particular to a water distribution valve and a water cup assembly with the same. BACKGROUND

[0002] The water distribution valve is a commonly used component of a dishwasher, which can control the washing water path inside the dishwasher. Since the water distribution hole of the water distribution valve is asymmetrically designed, the assembly position of the valve is not accurate during assembly, which causes the water distribution structure to leak and leads to dishwasher failure. Furthermore, vibration noise often occurs when high-frequency and high-pressure water flows through the water distribution valve. SUMMARY

[0003] The first technical problem to be solved by the present application is to provide a water distribution valve that limits the axial and radial degrees of freedom of the water distribution valve by the first and second positioning parts, respectively, to ensure the assembly accuracy of the water distribution valve, improve the assembly process of the water distribution valve assembly, and solve the vibration noise problem during operation of the water distribution valve.

[0004] The second technical problem to be solved by the present application is to provide a water cup assembly applied to the water distribution valve.

[0005] The technical solution adopted by the present application to solve the above-mentioned first technical problem is a water distribution valve, which comprises:

[0006] a valve body provided with a water distribution cavity and a mounting cavity, the mounting cavity being connected to the outer side wall of the water distribution cavity, and the mounting cavity being provided with a through hole communicating with the water distribution cavity;

[0007] a water distribution valve, which is inserted and rotatably connected to the water distribution cavity, and is provided with a plurality of special-shaped water distribution holes thereon;

[0008] a driving assembly, the fixed end of which is connected to the mounting cavity, and the driving end of which is connected to the water distribution valve after passing through the through hole;

[0009] a positioning assembly for limiting and fixing the water distribution valve, comprising a first positioning part and a second positioning part, the first positioning part being connected between the water distribution valve and the valve body, and the second positioning part being connected between the water distribution valve and the driving end of the driving assembly.

[0010] According to an embodiment of the present application, the driving assembly comprises:

[0011] a driving motor connected to the mounting cavity;

[0012] a shaft, one end of which is connected to the motor shaft of the driving motor, and the other end of which is inserted into the water distribution cavity through the through hole;

[0013] a driving gear fixed to the other end of the rotating shaft;

[0014] a driven gear fixed to the side of the water diversion paddle close to the rotating shaft and engaged with the driving gear;

[0015] wherein the driving gear and the driven gear are bevel gears, and the driving motor drives the water diversion paddle to rotate through the rotating shaft, the driving gear and the driven gear.

[0016] According to an embodiment of the present application, the second positioning part comprises:

[0017] a positioning rib connected to the outer periphery of the driven gear;

[0018] a U-shaped groove, the rotating shaft is provided with a downwardly recessed U-shaped groove in the tooth space of the driving gear, and the positioning rib can be inserted into the U-shaped groove to limit the rotating shaft and the water diversion paddle;

[0019] a key groove, which is a long strip-shaped groove provided on the outer peripheral wall of the rotating shaft in the axial direction, wherein the center line of the key groove and the center line of the U-shaped groove are coplanar with the rotation axis of the rotating shaft.

[0020] According to an embodiment of the present application, the first positioning part comprises:

[0021] a positioning column fixed to the water diversion cavity;

[0022] a positioning sleeve fixed to the side of the driven gear away from the water diversion paddle, the positioning sleeve can be sleeved on the outer periphery of the positioning column to limit the axis of the water diversion paddle;

[0023] a limiting screw, the rod part of which is threadedly connected to the positioning column, and the head part of which is located above the positioning sleeve to prevent the positioning sleeve from being detached from the positioning column.

[0024] According to an embodiment of the present application, the water diversion valve further comprises a limiting assembly for limiting the rotating shaft, and the limiting assembly comprises:

[0025] a limiting block connected to the side of the water diversion cavity close to the through hole, wherein the limiting block and the positioning column form a limiting cavity for limiting the driving gear, and the driving gear can be inserted into the limiting cavity.

[0026] According to an embodiment of the present application, the rotating shaft comprises:

[0027] a rotating shaft body comprising a first end and a second end arranged oppositely, the first end being connected to the motor shaft of the driving motor, and the second end being inserted into the water diversion cavity and sleeved with the driving gear.

[0028] A rotating cap is sleeved on the outer periphery of the first end, the rotating cap is inserted into the through hole, and a first sealing ring is arranged between the rotating cap and the through hole.

[0029] According to an embodiment of the present application, the microswitch is arranged on one side of the mounting cavity close to the driving motor, the rotating cap comprises a first cylinder, a transition cylinder and a second cylinder which are sequentially connected in sequence with the inner diameter decreasing, the second cylinder is inserted into the inner part of the through hole, and the transition cylinder and the second cylinder are located in the mounting cavity, wherein part of the side wall of the first cylinder is outwardly protruded to form a protruding part, the rotating cap is in contact with or separated from the microswitch through the protruding part, so as to determine the rotating position of the rotating shaft.

[0030] According to an embodiment of the present application, the second end is protruded to form a rotating protrusion towards the water distribution piece, the limiting assembly further comprises an arc-shaped slot arranged between the positioning column and the limiting block, and the rotating protrusion can be inserted into the arc-shaped slot and rotated in the arc-shaped slot.

[0031] According to an embodiment of the present application, the water distribution valve further comprises:

[0032] A second sealing ring is connected between the water distribution cavity and the water cup, wherein an installation opening is arranged on one side of the water distribution cavity close to the water cup, an annular protrusion is arranged on the inner periphery of the installation opening, and the second sealing ring is sleeved on the outer periphery of the annular protrusion.

[0033] And / or a temperature measuring assembly is connected to the water distribution cavity, and is used for measuring the temperature in the water distribution cavity.

[0034] According to an embodiment of the present application, the special-shaped water distribution hole comprises

[0035] A straight line segment extends from the outer side of the water distribution piece to the inner side thereof,

[0036] An inner arc line segment is connected to one side of the straight line segment close to the center of the water distribution piece, and extends along the circumferential direction thereof at the other end;

[0037] A first outer arc line segment is connected to one side of the straight line segment away from the center of the water distribution piece, and extends in the same direction as the other end of the inner arc line segment at the other end thereof;

[0038] A second outer arc line segment is connected to the other end of the inner arc line segment and the other end of the first outer arc line;

[0039] The straight line segment, the inner arc line segment, the first outer arc line segment and the second outer arc line segment jointly form a water distribution hole main body, and the middle part of the second outer arc line segment is outwardly recessed to form an extension area.

[0040] According to an embodiment of the present application, two of the profiled water diversion holes are a first water diversion hole and a second water diversion hole, a water diversion hole body of the first water diversion hole forms a first water diversion hole body, a water diversion hole body of the second water diversion hole forms a second water diversion hole body, a middle portion of the second outer arc segment of the first water diversion hole is recessed to the outside to form a first extension area, and a middle portion of the second outer arc segment of the second water diversion hole is recessed to the outside to form a second extension area.

[0041] The first water diversion hole body has a smaller flow area than the second water diversion hole body, and the first extension area has a larger flow area than the second extension area.

[0042] The present application solves the second technical problem by using the technical solution of a water cup assembly, which comprises:

[0043] The water diversion valve according to any one of the above;

[0044] The water cup is connected to the top of the water diversion cavity and has a plurality of through holes.

[0045] The two profiled water diversion holes are selectively in communication with or isolated from different through holes by rotating the water diversion knob, thereby forming a plurality of independent water path channels and realizing switching between different working modes.

[0046] According to an embodiment of the present application, the plurality of through holes include a first through hole, a second through hole, and a third through hole with diameters decreasing in sequence, and the first water diversion hole and the second water diversion hole are asymmetric structures with contour shapes matching the distribution positions of the first through hole, the second through hole, and the third through hole.

[0047] According to an embodiment of the present application, when the water diversion knob is rotated to a first working position, the first water diversion hole and the first through hole overlap in the axial projection of the water diversion knob to form a first communication area, the second water diversion hole and the first through hole overlap in the axial projection of the water diversion knob to form a second communication area, and the second through hole and the third through hole are completely isolated from the first water diversion hole and the second water diversion hole.

[0048] The portion of the first water diversion hole beyond the first communication area forms a first pressure relief area, and the portion of the second water diversion hole beyond the second communication area forms a second pressure relief area.

[0049] According to an embodiment of the present application, when the water distribution paddle rotates to the second working position, the projection of the second through hole in the axial direction of the water distribution paddle is completely located in the projection of the first water distribution hole in the axial direction of the water distribution paddle and forms a third communication area, and the projection of the third through hole in the axial direction of the water distribution paddle is completely located in the projection of the second water distribution hole in the axial direction of the water distribution paddle and forms a fourth communication area, and the first through hole is completely isolated from the first and second water distribution holes.

[0050] The extension of the first water distribution hole forms a third pressure relief area, and the extension of the second water distribution hole forms a fourth pressure relief area.

[0051] Compared with the prior art, the present application has the following advantages or beneficial effects:

[0052] The present application defines the axial and radial degrees of freedom of the water distribution paddle through the first and second positioning parts respectively, ensures the assembly precision of the water distribution paddle, improves the assembly process of the water distribution valve assembly, and solves the vibration and abnormal sound problems during the operation of the water distribution valve. BRIEF DESCRIPTION OF DRAWINGS

[0053] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0054] Figure 1 is an exploded view of a water distribution valve according to an example embodiment.

[0055] Figure 2 is a cross-sectional view of a water distribution valve according to an example embodiment.

[0056] Figure 3 is a schematic view of a water distribution valve according to an example embodiment.

[0057] Figure 4 is a schematic view of a valve body according to an example embodiment.

[0058] Figure 5 is a side view of a valve body according to an example embodiment.

[0059] Figure 6 is a schematic view of a drive assembly according to an example embodiment.

[0060] Figure 7 is a connection schematic view of a water distribution paddle and a drive assembly according to an example embodiment.

[0061] Figure 8 is a schematic view of a water distribution paddle according to an example embodiment.

[0062] Figure 9 This is a cross-sectional view of a water cup assembly according to an exemplary embodiment.

[0063] Figure 10 This is a partial schematic diagram of a water cup according to an exemplary embodiment.

[0064] Figure 11 This is a first state diagram of a water cup and a water-dividing lever according to an exemplary embodiment.

[0065] Figure 12 This is a second state diagram of a water cup and a water-dividing lever according to an exemplary embodiment.

[0066] Explanation of reference numerals in the attached figures:

[0067] 1. Valve body; 11. Water distribution chamber; 111. Annular protrusion; 112. Probe insertion hole; 113. First mounting hole; 12. Mounting cavity; 121. First mounting post; 122. Second mounting hole; 123. Second mounting post; 124. Elastic buckle;

[0068] 2. Water distribution vane; 21. Irregularly shaped water distribution hole; 21a. First water distribution hole; 21b. Second water distribution hole; 211. Straight section; 212. Inner arc section; 213. First outer arc section; 214. Second outer arc section; 2110. Main body of the first water distribution hole; 2111. First extension area; 2120. Main body of the second water distribution hole; 2121. Second extension area; 201. First pressure relief area; 202. Second pressure relief area; 203. Third pressure relief area; 204. Fourth pressure relief area;

[0069] 3. Drive assembly; 31. Drive motor; 32. Rotating shaft; 321. Rotating shaft body; 322. Rotating protrusion; 323. Rotating cap; 3231. First cylinder; 32311. Protrusion; 3232. Transition cylinder; 3233. Second cylinder; 33. Drive gear; 34. Driven gear;

[0070] 4. Positioning assembly; 41. First positioning part; 411. Positioning post; 412. Positioning sleeve; 413. Limiting screw; 42. Second positioning part; 421. Positioning rib; 422. U-shaped groove; 423. Keyway;

[0071] 5. Limiting component; 51. Limiting block; 52. Arc groove; 53. Limiting cavity;

[0072] 6. First sealing ring; 7. Micro switch; 8. Second sealing ring; 9. Temperature sensing component;

[0073] 100, water cup; 1000, through hole; 1001, first through hole; 1002, second through hole; 1003, third through hole. Detailed Implementation

[0074] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that the invention will be thorough and complete, and the concept of the exemplary embodiments will be fully conveyed to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0075] The terms “a,” “one,” and “the” are used to indicate the existence of one or more elements / components / etc.; the terms “include” and “have” are used to indicate an open-ended meaning of inclusion and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0076] This invention provides a water distribution valve, such as... Figures 1-8 As shown, the water distribution valve includes a valve body 1, a water distribution lever 2, a drive assembly 3, and a positioning assembly 4. The positioning assembly 4 includes a first positioning part 41 and a second positioning part 42. The valve body 1 has a water distribution cavity 11 and a mounting cavity 12. The mounting cavity 12 is connected to the outer wall of the water distribution cavity 11 and has a through hole communicating with the water distribution cavity 11. The water distribution lever 2 is inserted into and rotatably connected to the water distribution cavity 11 and has multiple irregularly shaped water distribution holes 21. The fixed end of the drive assembly 3 is connected to the mounting cavity 12, and the drive end of the drive assembly 3 passes through the through hole and is connected to the water distribution lever 2. The first positioning part 41 is connected between the water distribution lever 2 and the valve body 1, and the second positioning part 42 is connected between the water distribution lever 2 and the drive end of the drive assembly 3. The first positioning part 41 and the second positioning part 42 are used to limit and fix the water distribution lever 2. In this application, the rotation center line of the drive end of the drive assembly 3 is perpendicular to the rotation center line of the water distribution plate 2. The second positioning part 42 fixes the water distribution plate 2 along the rotation center direction of the drive end of the drive assembly 3. The second positioning part 42 also fixes the water distribution cavity 11 and the water distribution plate 2 along the extension direction of the rotation center line of the water distribution plate 2. In this way, by limiting the axial and radial degrees of freedom of the water distribution plate 2 respectively, the first positioning part 41 and the second positioning part 42 can ensure the assembly accuracy of the water distribution plate 2, improve the assembly process of the water distribution valve assembly, and effectively avoid the vibration noise that often occurs when high-frequency and high-pressure water flows through the water distribution plate 2. This solves the problem of vibration and abnormal noise during the operation of the water distribution valve and significantly reduces the operating noise.

[0077] In a preferred embodiment of the present invention, such as Figure 1 , 2The drive assembly 3 shown in Figures 6-7 includes a drive motor 31, a rotating shaft 32, a driving gear 33, and a driven gear 34. The drive motor 31 is connected to the mounting cavity 12. One end of the rotating shaft 32 is connected to the motor shaft of the drive motor 31, and the other end is inserted into the water distribution cavity 11 through a hole. The driving gear 33 is fixed to the other end of the rotating shaft 32. The driven gear 34 is fixed to the side of the water distribution plate 2 near the rotating shaft 32 and meshes with the driving gear 33. Both the driving gear 33 and the driven gear 34 are bevel gears. The drive motor 31 drives the water distribution plate 2 to rotate via the rotating shaft 32, the driving gear 33, and the driven gear 34. Figure 1 , 2 Both the driving gear 33 and driven gear 34 (6-7) are bevel gears. Compared with spur gears, bevel gears offer smoother operation, lower vibration and noise, and a larger contact area and better tooth surface contact during meshing, enabling the transmission of greater torque. This results in high transmission efficiency, strong load-bearing capacity, smooth operation, and low noise, effectively reducing noise during the operation of the water distribution valve and improving the user experience. Furthermore, the drive motor 31, via the shaft 32, driving gear 33, and driven gear 34, can drive the water distribution vane 2 to rotate at any angle, allowing the vane 2 to operate in multiple modes with the water cup 100 to meet different user needs. Additionally, the mounting cavity 12 is provided with a first mounting post 121 and a second mounting hole 122 for mounting the drive motor 31. The drive motor 31 is fixed to the open end of the mounting cavity 12 via the first mounting post 121 and the second mounting hole 122.

[0078] In a preferred embodiment of the present invention, such as Figure 1 , 2 The second positioning part 42 shown in 3, 6-8 includes a positioning rib 421, a U-shaped groove 422 and a keyway 423: the positioning rib 421 is connected to the outer periphery of the driven gear 34; the teeth of the driving gear 33 are provided with a downwardly recessed U-shaped groove 422, and the positioning rib 421 can be inserted into the U-shaped groove 422 to limit the rotation of the shaft 32 and the water-dividing plate 2; the keyway 423 is an axially arranged long groove on the outer peripheral wall of the shaft 32, wherein the center line of the keyway 423 and the center line of the U-shaped groove 422 are coplanar with the rotation axis of the shaft 32. Figure 3 , 6 The insertion of positioning rib 421 into U-groove 422 effectively solves the problem of not being able to accurately determine the assembly position of the water distribution plate 2 during assembly. The center line of keyway 423 and center line of U-groove 422 are coplanar with the rotation axis of rotating shaft 32. Figure 6 and 7It is not difficult to see that the U-shaped groove 422 is provided with a keyway 423 on the same axis as the rotating shaft 32. During installation, both the keyway 423 and the U-shaped groove 422 face the bottom surface of the water-dividing plate 2. As the positioning rib 421 is inserted into the U-shaped groove 422, the rotating shaft 32 and the water-dividing plate 2 can be assembled. The keyway 423 can effectively solve the problem of uncertain assembly direction of the rotating shaft 32 during assembly and improve assembly efficiency.

[0079] In a preferred embodiment of the present invention, such as Figures 1-3 The first positioning part 41 shown includes a positioning post 411, a positioning sleeve 412, and a limiting screw 413: the positioning post 411 is fixedly connected to the water distribution cavity 11; the positioning sleeve 412 is fixedly connected to the driven gear 34 on the side away from the water distribution plate 2, and the positioning sleeve 412 can be sleeved on the outer periphery of the positioning post 411 to limit the axis of the water distribution plate 2; the shank of the limiting screw 413 is threadedly connected to the positioning post 411, and its head is located above the positioning sleeve 412 to prevent the positioning sleeve 412 from falling off the positioning post 411. During assembly, the positioning sleeve 412 can be fitted onto the outer circumference of the positioning post 411 to ensure the axial assembly accuracy of the water-dividing plate 2. The limiting screw 413 fixes the water-dividing plate 2 onto the positioning post 411, which not only prevents the positioning sleeve 412 and the water-dividing plate 2 from coming off the positioning post 411, but also maintains a rotation gap of 0.2 to 0.4 mm with the assembled water-dividing plate 2. This ensures that the water-dividing plate 2 can still operate stably when high-frequency and high-pressure water flows through it, and also solves the noise problem caused by the vibration of the plate during the operation of the synchronous motor.

[0080] In a preferred embodiment of the present invention, such as Figure 1 , 2 The water distribution valve shown also includes a limiting component 5 for limiting the rotation shaft 32. The limiting component 5 includes a limiting block 51, which is connected to the side of the water distribution cavity 11 near the through hole. A limiting cavity 53 for limiting the drive gear 33 is formed between the positioning post 411 and the limiting block 51. The drive gear 33 can be inserted into the limiting cavity 53. The axial assembly clearance between the end face of the driven gear 34 at the far end of the drive gear 33 and the limiting block 51 is 0.2 to 0.4 mm. This ensures normal rotation while counteracting the axial force of the water pressure on the synchronous motor during washing, thus improving the service life of the synchronous motor. Based on the keyway 423 determining the installation direction of the rotation shaft 32, the limiting block 51 can support the rotation shaft 32, and the limiting cavity 53 can limit the drive gear 33. The three work together to ensure the installation direction and position of the rotation shaft 32, improving assembly accuracy and efficiency.

[0081] In a preferred embodiment of the present invention, such as Figure 1 , 2The rotating shaft 32 shown includes a shaft body 321 and a rotating cap 323. The shaft body 321 includes a first end and a second end arranged opposite to each other. The first end is connected to the motor shaft of the drive motor 31, and the second end is inserted into the water distribution cavity and fitted with a drive gear 33. The rotating cap 323 is fitted on the outer periphery of the first end and is inserted into the through hole, with a first sealing ring 6 between the rotating cap 323 and the through hole. The first sealing ring 6 is a star-shaped sealing ring. The through hole and the first sealing ring 6 have an interference fit of 0.35 mm, and the rotating cap 323 and the first sealing ring 6 also have an interference fit of 0.35 mm. The assembly surfaces of the rotating cap 323 and the first sealing ring 6 are compatible. The draft angle of the assembly surfaces of the first sealing ring 6, the through hole, and the rotating cap 323 is 0.5°. This draft angle of 0.5° can ensure the effective sealing of the star-shaped sealing ring 6 under high-pressure water flow. That is, the through hole and the rotating cap 323 constitute an axial compression structure for the star-shaped sealing ring 3, ensuring the sealing performance of the star-shaped sealing ring 3.

[0082] In a preferred embodiment of the present invention, such as Figure 1 , 2 A micro switch 7 is installed on the side of the mounting cavity near the first cylinder 3231. The rotating cap 323 includes a first cylinder 3231, a transition cylinder 3232, and a second cylinder 3233, whose inner diameters decrease sequentially and are connected in sequence. The second cylinder 3233 is inserted into the through hole. The transition cylinder 3232 and the second cylinder 3233 are located inside the mounting cavity. A portion of the side wall of the first cylinder 3231 protrudes outward to form a protrusion 32311. The protrusion 32311 contacts or disengages from the micro switch 7 to determine the rotation position of the rotating shaft 32. In this application, a mounting block is provided at the opening of the mounting cavity 12. The mounting block is provided with a second mounting post 123 and an elastic buckle 124. During installation, after the micro switch 7 is inserted into the second mounting post 123, the elastic buckle 124 will abut against the micro switch 7 to install the micro switch 7, saving two fixing screws. Meanwhile, the micro switch 7 can determine the rotation angle of the rotating shaft 32 and the water-dividing deflector 2 by the position of the protrusion 32311. The overall structure is ingenious and easy to install and debug.

[0083] In a preferred embodiment of the present invention, such as Figure 1 , 2 The second end of the diverter 2 protrudes to form a rotating protrusion 322. The limiting component 5 also includes an arc-shaped groove 52 disposed between the positioning post 411 and the limiting block 51. The rotating protrusion 322 can be inserted into the arc-shaped groove 52 and rotate within it. The arc-shaped groove 52 of this application is disposed within the diverter cavity 11 and located between the positioning post 411 and the limiting block 51, and is used to limit and support the rotating protrusion 322. The rotational gap between the rotating protrusion 322 and the arc-shaped groove 52 is 0.2 to 0.4 mm to ensure the rotational effect of the rotating protrusion 322 and the rotating shaft 32.

[0084] In a preferred embodiment of the present invention, such as Figure 1 , 2 The water distribution valve shown in Figure 9 also includes a second sealing ring 8 and / or a temperature measuring component 9. The second sealing ring 8 is connected between the water distribution chamber 11 and the water cup 100. The water distribution chamber 11 has an installation port on the side near the water cup 100, and an annular protrusion 111 is provided on the inner circumference of the installation port. The second sealing ring 8 is fitted onto the outer circumference of the annular protrusion 111. The second sealing ring 8 is an O-ring, used to provide axial sealing between the water distribution valve and the water cup 100. The annular protrusion 111 on the water distribution valve supports the inner circumference of the second sealing ring 8, preventing radial deformation of the second sealing ring 8. This improves the sealing structure between the water distribution valve and the water cup 100, replacing the O-ring with an axial seal with an axial + radial seal, thus improving the effectiveness of the sealing ring.

[0085] The temperature measuring component 9 is connected to the water distribution chamber 11 and is used to measure the temperature inside the water distribution chamber 11. The water distribution chamber 11 is provided with a probe insertion hole 112 for the probe of the temperature measuring component 9 to pass through and a first mounting hole 113 for fixing the temperature measuring component 9, so as to facilitate the installation and removal of the temperature measuring component 9. The temperature measuring component 9 is a thermistor, which can effectively read the stability of the circulating washing water and prevent temperature drift. An O-ring is provided between the temperature measuring component 9 and the water distribution chamber 11 to ensure the sealing of the water distribution valve.

[0086] In a preferred embodiment of the present invention, such as Figure 1 , 3The irregularly shaped water-dividing hole 21 shown in Figures 7-8 includes a straight segment 211, an inner arc segment 212, a first outer arc segment 213, and a second outer arc segment 214. The straight segment 211 extends from the outer side of the water-dividing plate 2 to its inner side. One end of the inner arc segment 212 is connected to the side of the straight segment 211 near the center of the water-dividing plate 2, and the other end of the inner arc segment 212 extends along its circumference. One end of the first outer arc segment 213 is connected to the side of the straight segment 211 away from the center of the water-dividing plate 2, and the other end of the first outer arc segment 213 extends in the same direction as the other end of the inner arc segment 212. The second outer arc segment 214 is connected to the other end of the inner arc segment 212 and the other end of the first outer arc segment 213. The straight segment 211, the inner arc segment 212, the first outer arc segment 213, and the second outer arc segment 214 together form the main body of the water-dividing hole, and the middle part of the second outer arc segment 214 is recessed outward to form an extension area. The aforementioned irregularly shaped water distribution hole 21 can connect with or isolate from multiple through holes 1000 on the water cup 100, forming multiple independent water channels. As the water distribution lever 2 rotates, different operating modes can be switched. Furthermore, the main body of the water distribution hole in this application is composed of multiple arc-shaped inner walls, which can disperse stress concentration and is more resistant to torsional forces than round holes, preventing the lever from loosening or deforming under the impact of high-speed water flow. The outwardly concave extension area also increases the contact area with the water flow, preventing the lever from shifting due to high-pressure water flow, reducing water turbulence and noise, improving water distribution efficiency, and extending service life. In addition, the irregularly shaped water distribution hole 21 can serve as a foolproof indicator, avoiding incorrect reverse installation during maintenance and improving maintenance efficiency. It also ensures accurate switching between hot and cold water.

[0087] In a preferred embodiment of the present invention, such as Figure 1 , 3 As shown in Figures 7-8, there are two irregularly shaped water distribution holes 21, namely a first water distribution hole 21a and a second water distribution hole 21b. The main body of the first water distribution hole 21a forms the first water distribution hole body 2110, and the main body of the second water distribution hole 21b forms the second water distribution hole body 2120. The middle part of the second outer arc segment 214 of the first water distribution hole 21a is recessed outward to form a first extension area 2111, and the middle part of the second outer arc segment 214 of the second water distribution hole 21b is recessed outward to form a second extension area 2121. The flow area of ​​the first water distribution hole body 2110 is smaller than that of the second water distribution hole body 2120, and the flow area of ​​the first extension area 2111 is larger than that of the second extension area 2121. Figure 7 , 8It is easy to see from points 10, 11, and 12 that the diameters of the multiple through holes 1000 on the water cup 100 are all different. The multiple through holes 1000 include a first through hole 1001, a second through hole 1002, and a third through hole 1003 with successively decreasing diameters. Among them, the first water distribution hole 21a and the second water distribution hole 21b have an asymmetrical structure, and their outline shape is adapted to the distribution position of the first through hole 1001, the second through hole 1002, and the third through hole 1003. This is used to improve the stability of the water distribution lever 2 when the high-pressure water flow passes through during washing and to prevent noise caused by the high-frequency vibration of the lever. The second extension area 2121 has an L-shaped structure, which makes the flow area of ​​the area larger than that of the first extension area 2111, increasing the contact area with the water flow and alleviating the turbulence and noise of the high-pressure water flow under high flow rate.

[0088] This invention provides a water cup assembly, such as... Figures 9-12 The water cup assembly shown includes a water distribution valve and a water cup 100 as described above. The water cup 100 is connected to the top of the water distribution chamber 11 and has multiple through holes 1000. By rotating the water distribution lever 2, two irregularly shaped water distribution holes 21 can selectively connect with or isolate different through holes 1000, thereby forming multiple independent water channels and realizing the switching of different working modes. The water cup assembly in this embodiment includes any of the above-described water distribution valves. Since the water distribution valves have the above-described technical effects, the water cup assembly with the above-described water distribution valves should also have the same technical effects. The gap between the mounting surface of the water distribution lever 2 and the mating surface of the water cup 100 is controlled at 0.3mm to solve the high-frequency vibration caused by high-pressure water flow.

[0089] In a preferred embodiment of the present invention, such as Figures 10-12 The plurality of through holes 1000 shown include a first through hole 1001, a second through hole 1002, and a third through hole 1003 with diameters decreasing sequentially. The first water distribution hole 21a and the second water distribution hole 21b have an asymmetrical structure, and their outlines are adapted to the distribution positions of the first through hole 1001, the second through hole 1002, and the third through hole 1003. The first water distribution hole 21a and the second water distribution hole 21b, together with the first through hole 1001, the second through hole 1002, and the third through hole 1003, form a... Figures 11-12 The two positional relationships shown are as follows, but regardless of which one, the first water distribution hole 21a and the second water distribution hole 21b can form a pressure relief gap to disperse stress concentration, prevent the lever from loosening or deforming under the impact of high-speed water flow, prevent the lever from shifting due to high-pressure water flow, reduce water flow turbulence and noise, improve water distribution efficiency, and extend service life.

[0090] In a preferred embodiment of the present invention, such as Figures 10-12As shown, when the water-dividing deflector 2 rotates to the first working position, the projection portion of the first water-dividing hole 21a and the first through hole 1001 in the axial direction of the water-dividing deflector 2 overlaps to form a first connecting area. The projection portion of the second water-dividing hole 21b and the first through hole 1001 in the axial direction of the water-dividing deflector 2 overlaps to form a second connecting area. The second through hole 1002 and the third through hole 1003 are completely isolated from the first water-dividing hole 21a and the second water-dividing hole 21b. The portion of the first water-dividing hole 21a that extends beyond the first connecting area forms 201; the portion of the second water-dividing hole 21b that extends beyond the second connecting area forms a second pressure relief area 202. The first and second connecting areas are used for mid-layer spraying. The first and second pressure relief areas 201 and 202 are corresponding buffer zones, which can disperse stress concentration, improve the stability of the water-dividing deflector 2, and prevent the deflector from generating high-frequency vibration and noise due to high-pressure water flow.

[0091] In a preferred embodiment of the present invention, such as Figures 10-12 As shown, when the water-dividing lever 2 rotates to the second working position, the projection of the second through hole 1002 along the axial direction of the water-dividing lever 2 is completely within the projection of the first water-dividing hole 21a along the axial direction of the water-dividing lever 2, forming a third connecting region. The projection of the third through hole 1003 along the axial direction of the water-dividing lever 2 is completely within the projection of the second water-dividing hole 21b along the axial direction of the water-dividing lever 2, forming a fourth connecting region. The first through hole 1001 is completely isolated from the first water-dividing hole 21a and the second water-dividing hole 21b. The extended portion of the first water-dividing hole 21a forms a third pressure relief region 203, and the extended portion of the second water-dividing hole 21b forms a fourth pressure relief region 204. In the second working position, the third and fourth connecting regions are connected to the lower and upper layers 82, respectively. The third pressure relief region 203 and the fourth pressure relief region 204 serve as corresponding buffer zones, which can disperse stress concentration, improve the stability of the water-dividing lever 2, and prevent noise generated by high-frequency vibration of the lever.

[0092] In the description of the embodiments of the present invention, it should be understood that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0093] In the description of this specification, the terms "an embodiment," "a preferred embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0094] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, various modifications and variations can be made to the embodiments of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of the present invention should be included within the protection scope of the embodiments of the present invention.

Claims

1. A water distribution valve, characterized in that, The water distribution valve includes: The valve body (1) is provided with a water distribution chamber (11) and a mounting chamber (12). The mounting chamber (12) is connected to the outer wall of the water distribution chamber (11), and the mounting chamber (12) is provided with a through hole communicating with the water distribution chamber (11). A water-dividing lever (2) is inserted into and rotated to connect to the water-dividing cavity (11), and has multiple irregularly shaped water-dividing holes (21) on it; The drive assembly (3) has its fixed end connected to the mounting cavity (12) and its drive end connected to the water-dividing deflector (2) through the through hole. The positioning component (4) is used to limit and fix the water diverter (2), including a first positioning part (41) and a second positioning part (42). The first positioning part (41) is connected between the water diverter (2) and the valve body (1), and the second positioning part (42) is connected between the water diverter (2) and the drive end of the drive component (3).

2. The water distribution valve according to claim 1, characterized in that, The driving component (3) includes: A drive motor (31) is connected to the mounting cavity (12); A rotating shaft (32) is connected at one end to the motor shaft of the drive motor (31), and at the other end is inserted into the water distribution chamber (11) through the through hole; The drive gear (33) is fixed to the other end of the rotating shaft (32); The driven gear (34) is fixed to the side of the water-dividing deflector (2) near the rotating shaft (32) and meshes with the driving gear (33); The driving gear (33) and the driven gear (34) are both bevel gears. The drive motor (31) drives the water-dividing plate (2) to rotate through the rotating shaft (32), the driving gear (33) and the driven gear (34).

3. The water distribution valve according to claim 2, characterized in that, The second positioning part (42) includes: A positioning rib (421) is connected to the outer periphery of the driven gear (34); The U-shaped groove (422) is provided in the inter-tooth region of the drive gear (33) of the rotating shaft (32). The positioning rib (421) can be inserted into the U-shaped groove (422) to limit the rotation of the rotating shaft (32) and the water-dividing deflector (2). The keyway (423) is an axially oriented groove on the outer peripheral wall of the rotating shaft (32), wherein the center line of the keyway (423) and the center line of the U-shaped groove (422) are coplanar with the rotation axis of the rotating shaft (32).

4. The water distribution valve according to claim 2, characterized in that, The first positioning unit (41) includes: The positioning post (411) is fixedly connected to the water distribution cavity (11); A positioning sleeve (412) is fixed to the side of the driven gear (34) away from the water-dividing plate (2). The positioning sleeve (412) can be sleeved on the outer periphery of the positioning post (411) to limit the axis of the water-dividing plate (2). A limiting screw (413) has its shank threadedly connected to the positioning post (411), and its head is located above the positioning sleeve (412) to prevent the positioning sleeve (412) from coming off the positioning post (411).

5. The water distribution valve according to claim 4, characterized in that, It also includes a limiting component (5) for limiting the rotation shaft (32), the limiting component (5) comprising: A limiting block (51) is connected to the side of the water distribution cavity (11) near the through hole, wherein a limiting cavity (53) for defining the drive gear (33) is formed between the limiting block (51) and the positioning post (411), and the drive gear (33) can be inserted into the limiting cavity (53).

6. The water distribution valve according to claim 2, characterized in that, The rotating shaft (32) includes: The rotating shaft body (321) includes a first end and a second end arranged opposite to each other. The first end is connected to the motor shaft of the drive motor (31), and the second end is inserted into the water distribution chamber and fitted with the drive gear (33). A rotating cap (323) is fitted onto the outer periphery of the first end. The rotating cap (323) is inserted into the through hole, and a first sealing ring (6) is provided between the rotating cap (323) and the through hole.

7. The water distribution valve according to claim 6, characterized in that, A micro switch (7) is installed on the side of the mounting cavity near the drive motor (31). The rotating cap (323) includes a first cylinder (3231), a transition cylinder (3232), and a second cylinder (3233) whose inner diameters decrease sequentially and are connected in sequence. The second cylinder (3233) is inserted into the interior of the through hole. The transition cylinder (3232) and the second cylinder (3233) are located in the mounting cavity. A portion of the sidewall of the first cylinder (3231) protrudes outward to form a protrusion (32311). The protrusion (32311) contacts or disengages from the micro switch (7) to determine the rotation position of the rotating shaft (32).

8. The water distribution valve according to claim 6, characterized in that, The second end protrudes towards the water-dividing deflector (2) to form a rotating protrusion (322). The limiting component (5) also includes an arc-shaped groove (52) disposed between the positioning post (411) and the limiting block (51). The rotating protrusion (322) can be inserted into the arc-shaped groove (52) and rotate within the arc-shaped groove (52).

9. The water distribution valve according to claim 1, characterized in that, Also includes: The second sealing ring (8) is connected between the water distribution chamber (11) and the water cup (100). The water distribution chamber (11) has an installation port on the side near the water cup (100). The inner circumference of the installation port has an annular protrusion (111). The second sealing ring (8) is sleeved on the outer circumference of the annular protrusion (111). And / or, a temperature measuring component (9) is connected to the water distribution chamber (11) for measuring the temperature inside the water distribution chamber (11).

10. The water distribution valve according to any one of claims 1-9, characterized in that, The irregularly shaped water distribution hole (21) includes The straight segment (211) extends from the outer side to the inner side of the water-dividing deflector (2). The inner arc segment (212) is connected at one end to the side of the straight segment (211) near the center of the water-dividing deflector (2), and at the other end extends along its circumference. The first outer arc segment (213) has one end connected to the side of the straight segment (211) away from the center of the water-dividing plate (2), and the other end extends in the same direction as the other end of the inner arc segment (212); The second outer arc segment (214) is connected to the other end of the inner arc segment (212) and the other end of the first outer arc (213); The straight segment (211), the inner arc segment (212), the first outer arc segment (213), and the second outer arc segment (214) together form the main body of the water distribution hole, and the middle part of the second outer arc segment (214) is recessed outward to form an extension area.

11. The water distribution valve according to claim 10, characterized in that, There are two irregular water distribution holes (21), namely a first water distribution hole (21a) and a second water distribution hole (21b). The main body of the first water distribution hole (21a) forms a first water distribution hole body (2110), and the main body of the second water distribution hole (21b) forms a second water distribution hole body (2120). The middle part of the second outer arc segment (214) of the first water distribution hole (21a) is recessed to the outside to form a first extension area (2111), and the middle part of the second outer arc segment (214) of the second water distribution hole (21b) is recessed to the outside to form a second extension area (2121). The flow area of ​​the first water distribution hole body (2110) is smaller than that of the second water distribution hole body (2120), and the flow area of ​​the first extension area (2111) is larger than that of the second extension area (2121).

12. A water cup (100) assembly, characterized in that, include: The water distribution valve as described in any one of claims 10-11; A water cup (100) is connected to the top of the water distribution chamber (11) and has multiple through holes (1000) thereon; By rotating the water-dividing deflector (2), the two irregularly shaped water-dividing holes (21) can be selectively connected to or isolated from different through holes (1000), thereby forming multiple independent water channels and realizing the switching of different working modes.

13. The water cup (100) assembly according to claim 12, characterized in that, The plurality of through holes (1000) include a first through hole (1001), a second through hole (1002), and a third through hole (1003) with diameters decreasing sequentially. The first water distribution hole (21a) and the second water distribution hole (21b) have an asymmetrical structure, and their outline shape is adapted to the distribution position of the first through hole (1001), the second through hole (1002), and the third through hole (1003).

14. The water cup (100) assembly according to claim 13, characterized in that, When the water-dividing deflector (2) is rotated to the first working position, the first water-dividing hole (21a) and the first through hole (1001) overlap in the axial projection portion of the water-dividing deflector (2) to form a first connecting area, and the second water-dividing hole (21b) and the first through hole (1001) overlap in the axial projection portion of the water-dividing deflector (2) to form a second connecting area. The second through hole (1002) and the third through hole (1003) are completely isolated from the first water-dividing hole (21a) and the second water-dividing hole (21b). Wherein, the portion of the first water distribution hole (21a) that extends beyond the first connecting area forms a first pressure relief zone (201); the portion of the second water distribution hole (21b) that extends beyond the second connecting area forms a second pressure relief zone (202).

15. The water cup (100) assembly according to claim 13, characterized in that, When the water-dividing deflector (2) is rotated to the second working position, the projection of the second through hole (1002) on the axial direction of the water-dividing deflector (2) is completely located within the projection of the first water-dividing hole (21a) on the axial direction of the water-dividing deflector (2) and forms a third connecting area. The projection of the third through hole (1003) on the axial direction of the water-dividing deflector (2) is completely located within the projection of the second water-dividing hole (21b) on the axial direction of the water-dividing deflector (2) and forms a fourth connecting area. The first through hole (1001) is completely isolated from the first water-dividing hole (21a) and the second water-dividing hole (21b). The extension portion of the first water distribution hole (21a) forms a third pressure relief zone (203), and the extension portion of the second water distribution hole (21b) forms a fourth pressure relief zone (204).

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