Sealing ring structure and dishwasher

Abstract

The application relates to the sealing technical field and provides a sealing ring structure and a dishwasher, which comprise a sealing ring body, a convex part and an inner recess part, and the sealing ring body is in a circular ring structure. The convex part is located on the outer circumferential side of the sealing ring body in the radial direction, the inner recess part is located on the inner side of the sealing ring body in the radial direction, and the inner recess part is provided with a cavity on the inner side of the sealing ring body. The sealing ring structure provided by the application embodiment can effectively improve the sealing effect of the sealing ring structure by arranging the inner recess part on the inner side of the sealing ring structure and the convex part on the outer side, so that the elastic deformation of the inner recess part and the convex part can effectively improve the sealing effect of the sealing ring structure. Therefore, the inner recess part can increase the contact area between the sealing ring structure and the drainage pump, can effectively reduce or avoid the rolling and twisting deformation of the sealing ring structure under the action of external force, can effectively prevent the twisting deformation of the sealing ring structure from affecting the sealing property of the sealing ring structure, and can effectively improve the sealing property of the sealing ring structure.

Description

Technical Field

[0001] This application relates to the field of sealing technology, and more particularly to a sealing ring structure and a dishwasher. Background Technology

[0002] With the continuous development of dishwasher technology, the variety of dishwashers is becoming increasingly diverse. Among them, cleaning equipment (such as dishwashers) can automatically clean kitchen utensils (such as bowls, chopsticks, pots and pans), effectively freeing up users' hands and bringing them a better cooking experience.

[0003] Dishwashers typically include a water cup, which supplies washing water to the inner drum and collects used wastewater for drainage. This water cup, along with components such as the drain pump and diversion valve, is usually fitted with a sealing ring to maintain a tight seal between the water cup and these components. The sealing ring is typically an O-ring, meaning it has a circular cross-section.

[0004] However, the aforementioned sealing rings are prone to twisting and deformation during use, which affects the sealing effect. Utility Model Content

[0005] This application provides a sealing ring structure and a dishwasher, which can effectively reduce or avoid the rolling and twisting deformation of the sealing ring structure under external force, prevent the twisting deformation of the sealing ring structure from affecting the sealing performance of the sealing ring structure, and thus effectively improve the sealing performance of the sealing ring structure.

[0006] This application provides a sealing ring structure, including:

[0007] The sealing ring body is a circular ring structure;

[0008] The protrusion is located on the outer circumferential side of the sealing ring body in the radial direction.

[0009] The recessed portion is located on the inner side of the sealing ring body in the radial direction, and the recessed portion forms a cavity on the inner side of the sealing ring body.

[0010] This application provides a sealing ring structure and a dishwasher. By providing a concave portion on the inner side and a protruding portion on the outer side of the sealing ring structure, the elastic deformation of the concave and protruding portions effectively improves the sealing effect of the sealing ring structure. The concave portion increases the contact area between the sealing ring structure and the drain pump, effectively reducing or preventing the sealing ring structure from rolling and twisting under external forces. This effectively prevents the sealing ring structure from being affected by twisting deformation, thus effectively improving the sealing performance of the sealing ring structure.

[0011] In one possible implementation, at least a first rib and a second rib are also included;

[0012] The first rib and the second rib are located on both sides of the concave portion along the axial direction of the sealing ring body, and both the first rib and the second rib protrude radially along the sealing ring body.

[0013] In one possible implementation, multiple dividing ribs are also included;

[0014] The dividing ribs are located within the concave portion and are distributed at intervals along the circumference of the sealing ring body, dividing the cavity into multiple mutually isolated sub-cavities.

[0015] In one possible implementation, both the first and second ribs extend circumferentially along the body of the sealing ring and form a closed ring.

[0016] In one possible implementation, the cross-sectional shape of the protrusion is an arc shape;

[0017] The cross-sectional shape of the concave portion is arc-shaped.

[0018] In one possible implementation, a third rib is also included;

[0019] The third rib is located inside the concave portion, and the protrusion direction and extension direction of the third rib are consistent with those of the first rib and the second rib.

[0020] A second aspect of this application provides a dishwasher, including a water cup, a drain pump, a water distribution valve, and a sealing ring structure as described above.

[0021] The water cup has a first mounting port and a second mounting port;

[0022] The drain pump has a first mounting head, which mates with a first mounting port. The drain pump and the water cup are connected through the first mounting head and the first mounting port. The sealing ring structure is installed between the first mounting head and the first mounting port.

[0023] And / or, the water distribution valve has a second mounting head, which mates with the second mounting port, and the water distribution valve is connected to the water cup via the second mounting head and the second mounting port, and the sealing ring structure is installed between the second mounting head and the second mounting port.

[0024] In one possible implementation, the outer periphery of the first mounting port is provided with first swivel ribs at intervals;

[0025] The drain pump is provided with a buckle that cooperates with the first buckle, and the first buckle rib is locked in the first buckle so that the drain pump and the water cup are connected through the cooperation of the first buckle and the first buckle rib.

[0026] In one possible implementation, second swivel ribs are distributed at intervals around the outer periphery of the second mounting port;

[0027] The water distribution valve is provided with a buckle that cooperates with the second buckle. The second buckle rib is locked inside the second buckle so that the water distribution valve and the water cup are connected through the cooperation of the second buckle and the second buckle rib.

[0028] In one possible implementation, the first mounting head is further provided with spaced-distributed limiting ribs;

[0029] The limiting rib is located at one end of the first mounting head near the first mounting opening, and the limiting rib protrudes from the first mounting head in the radial direction. The sealing ring structure is mounted on the first mounting head, and the limiting rib is used to limit the sealing ring structure in the radial direction of the first mounting head. Attached Figure Description

[0030] 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 some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of this application;

[0032] Figure 2 An exploded view showing the combination of a water cup with a drain pump and a water distribution valve, as provided in an embodiment of this application.

[0033] Figure 3 A schematic diagram of a sealing ring structure installed between a water cup and a drain pump, provided in an embodiment of this application;

[0034] Figure 4 for Figure 3 A magnified view of region A in the middle;

[0035] Figure 5 This is a schematic diagram of a sealing ring structure installed between a water cup and a water distribution valve, provided in an embodiment of this application.

[0036] Figure 6 for Figure 5 A magnified view of region B in the middle;

[0037] Figure 7 This is a schematic diagram of a sealing ring structure provided in an embodiment of this application;

[0038] Figure 8 A partial cross-sectional view of a sealing ring structure provided in an embodiment of this application;

[0039] Figure 9 for Figure 8 A magnified view of region C in the middle;

[0040] Figure 10 This is a schematic diagram of another sealing ring structure provided in an embodiment of this application;

[0041] Figure 11 A partial cross-sectional view of another sealing ring structure provided in an embodiment of this application;

[0042] Figure 12 This is a schematic diagram of the structure of a drainage pump provided in an embodiment of this application.

[0043] Figure label:

[0044] 10-Dishwasher;

[0045] 100-Sealing ring structure;

[0046] 110 - Sealing ring body;

[0047] 120 - Protrusion;

[0048] 130 - Concave portion; 131 - Cavity; 1311 - Sub-cavity;

[0049] 140 - First protruding rib;

[0050] 150 - Second rib;

[0051] 160-Split ribs;

[0052] 200 - Water cup; 210 - First mounting port; 220 - Second mounting port; 230 - First screw thread rib; 240 - Second screw thread rib;

[0053] 300 - Drain pump; 310 - First mounting head; 320 - Limiting rib; 330 - First rotary buckle;

[0054] 400 - Diverter valve; 410 - Second mounting head; 420 - Second rotary knob;

[0055] 500-Inner Liner. Detailed Implementation

[0056] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0057] As described in the background section, dishwashers typically include a water cup. This water cup supplies washing water to the inner drum and collects used wastewater for discharge. The water cup, along with components such as a drain pump and a diversion valve, is usually fitted with a sealing ring to maintain a seal between the water cup and these components. This sealing ring is typically an O-ring, meaning it has a circular cross-section.

[0058] However, during use, the aforementioned sealing ring is prone to rolling, which can cause it to twist and deform, affecting the sealing effect.

[0059] To address the aforementioned problems, this application provides a sealing ring structure and a dishwasher. By providing a concave portion on the inner side and a protruding portion on the outer side of the sealing ring structure, the elastic deformation of the concave and protruding portions effectively improves the sealing effect of the sealing ring structure. The concave portion increases the contact area between the sealing ring structure and the drain pump, effectively reducing or preventing the sealing ring structure from rolling and twisting under external forces. This effectively prevents the sealing ring structure from being affected by twisting deformation, thereby effectively improving the sealing performance of the sealing ring structure.

[0060] The dishwasher provided in the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0061] Figure 1 This is a schematic diagram of the structure of a dishwasher provided in an embodiment of this application. Figure 2 This is an exploded view showing the combination of a water cup, a drain pump, and a water distribution valve, according to an embodiment of this application. Figure 3 This is a schematic diagram illustrating the installation of a sealing ring structure between a water cup and a drain pump, as provided in an embodiment of this application. Figure 4 for Figure 3 A magnified view of region A in the middle. Figure 5 This is a schematic diagram illustrating the installation of a sealing ring structure between a water cup and a water distribution valve, as provided in an embodiment of this application. Figure 6 for Figure 5 A magnified view of region B in the middle. Figure 7 This is a schematic diagram of a sealing ring structure provided in an embodiment of this application. Figure 8This is a partial cross-sectional view of a sealing ring structure provided in an embodiment of this application. Figure 9 for Figure 8 A magnified view of region C in the middle.

[0062] This application provides a sealing ring structure and a dishwasher including the sealing ring structure. See also... Figure 1 As shown, the dishwasher 10 may also include an inner tub 500, a water cup 200, a drain pump 300, and a water distribution valve 400. See also... Figure 2 As shown, the water cup 200 may have a first mounting port 210 and a second mounting port 220, and the drain pump 300 may have a first mounting head 310, combined with Figure 3 and Figure 4 As shown, the first mounting head 310 can mate with the first mounting port 210. The drain pump 300 and the water cup 200 can be connected through the first mounting head 310 mates with the first mounting port 210, and the sealing ring structure 100 can be installed between the first mounting head 310 and the first mounting port 210.

[0063] For example, the first mounting head 310 can extend into the first mounting port 210, and the sealing ring structure 100 can be located between the outer peripheral side of the first mounting head 310 and the inner wall of the first mounting port 210, so that the sealing ring structure 100 can provide a seal between the first mounting head 310 and the first mounting port 210.

[0064] See Figure 2 As shown, the water distribution valve 400 has a second mounting head 410, which is combined with Figure 5 and Figure 6 As shown, the second mounting head 410 mates with the second mounting port 220, and the water distribution valve 400 and the water cup 200 are connected through the mating of the second mounting head 410 and the second mounting port 220. The sealing ring structure 100 is installed between the second mounting head 410 and the second mounting port 220.

[0065] For example, the second mounting head 410 can extend into the second mounting port 220, and the sealing ring structure 100 can be located between the outer peripheral side of the second mounting head 410 and the inner wall of the second mounting port 220, so that the sealing ring structure 100 can provide a seal between the second mounting head 410 and the second mounting port 220.

[0066] See Figure 7 , Figure 8 as well as Figure 9As shown, the sealing ring structure 100 may include a sealing ring body 110, a protrusion 120, and a recess 130. The sealing ring body 110 may be an annular structure. The protrusion 120 may be located on the radially outer periphery of the sealing ring body 110; for example, the protrusion 120 may surround the outer periphery of the sealing ring body 110. The recess 130 may be located on the radially inner side of the sealing ring body 110; for example, the recess 130 may surround the inner side of the sealing ring body 110. The recess 130 forms a cavity 131 on the inner side of the sealing ring body 110.

[0067] Taking the sealing ring structure 100 installed between the drain pump 300 and the water cup 200 as an example, when the sealing ring structure 100 is installed between the outer periphery of the first mounting head 310 of the drain pump 300 and the inner wall of the first mounting port 210 of the water cup 200, the recessed portion 130 on the sealing ring structure 100 can contact the outer peripheral side of the first mounting head 310, and the cavity 131 described above can be formed between the recessed portion 130 and the outer peripheral side of the first mounting head 310. The protrusion 120 on the sealing ring structure 100 can contact the outer peripheral side of the first mounting port 210.

[0068] During the contact between the recessed portion 130 and the outer peripheral side of the first mounting head 310, the recessed portion 130 can undergo elastic deformation, which can effectively increase the contact area between the sealing ring structure 100 and the first mounting head 310. This can effectively reduce or avoid the rolling of the sealing ring structure 100 on the first mounting head 310, and can effectively reduce or avoid the twisting deformation of the sealing ring structure 100, preventing the sealing effect of the sealing ring structure 100 from being affected by the twisting deformation, thereby effectively improving the reliability and stability of the sealing ring.

[0069] During the installation process of the first mounting head 310 and the first mounting port 210, the protrusion 120 can undergo elastic deformation to fit tightly against the inner wall of the first mounting port 210, thereby providing a seal between the first mounting port 210 and the first mounting head 310. The recessed portion 130 on the sealing ring structure 100 can deform towards the first mounting head 310. This facilitates the engagement of the protrusion 120 with the inner wall of the first mounting port 210, effectively reducing or preventing the protrusion 120 from getting stuck on the inner wall of the first mounting port 210.

[0070] Furthermore, the cavity 131 formed between the recessed portion 130 and the outer peripheral side of the first mounting head 310 will generate heat during the long-term operation of the dishwasher 10, causing the gas temperature inside the cavity 131 to rise and expand. This can effectively improve the tightness of the contact between the sealing ring structure 100 and the drain pump 300 and the water cup 200, thereby effectively improving the sealing effect of the sealing ring structure 100 between the water cup 200 and the drain pump 300.

[0071] The sealing ring structure 100 provided in this embodiment of the application has a concave portion 130 on its inner side and a protrusion 120 on its outer side. The elastic deformation of the concave portion 130 and the protrusion 120 effectively improves the sealing effect of the sealing ring structure 100. The concave portion 130 increases the contact area between the sealing ring structure 100 and the drain pump 300, effectively reducing or preventing the sealing ring structure 100 from rolling and twisting under external forces. This effectively prevents the twisting deformation of the sealing ring structure 100 from affecting its sealing performance, thereby effectively improving the sealing performance of the sealing ring structure 100.

[0072] See also Figure 9 As shown, the sealing ring structure 100 may further include at least a first rib 140 and a second rib 150. The first rib 140 and the second rib 150 may be located on both sides of the recess 130 along the axial direction of the sealing ring body 110, and both the first rib 140 and the second rib 150 may protrude radially along the sealing ring body 110. That is, it can be understood that both the first rib 140 and the second rib 150 protrude toward the center of the sealing ring body 110.

[0073] During the use of the sealing ring structure 100, the first rib 140 and the second rib 150 can undergo elastic deformation to increase the deformation of the sealing ring, thereby enabling the sealing ring to achieve a better sealing effect between the water cup 200 and the drain pump 300 and the water distribution valve 400.

[0074] See Figure 7 As shown, the first rib 140 and the second rib 150 can both extend circumferentially along the sealing ring body 110 and form a closed ring. That is, the first rib 140 and the second rib 150 are continuous and connected end to end in a ring structure. This allows the first rib 140 and the second rib 150 to play a sealing role in the circumferential direction of the sealing ring structure 100, thereby effectively improving the overall sealing effect of the sealing ring structure 100.

[0075] See Figure 9 As shown, the cross-sectional shape of the protrusion 120 can be arc-shaped, and the cross-sectional shape of the concave portion 130 can also be arc-shaped. The arc-shaped protrusion 120 and concave portion 130 can easily undergo elastic deformation to increase the sealing effect of the sealing ring structure 100, thereby effectively improving the sealing effect between the water cup 200 and the drain pump 300 and the water distribution valve 400.

[0076] Furthermore, the arc-shaped protrusion 120 and concave portion 130 can reduce or avoid sharp corner structures in the sealing ring structure 100, thus preventing stress concentration.

[0077] Figure 10This is a schematic diagram of another sealing ring structure provided in an embodiment of this application. Figure 11 A partial cross-sectional view of another sealing ring structure provided in an embodiment of this application.

[0078] See Figure 10 and Figure 11 As shown, the sealing ring structure 100 may also include a plurality of dividing ribs 160. The dividing ribs 160 may be located in the concave portion 130 and distributed at intervals along the circumference of the sealing ring body 110. The dividing ribs 160 may divide the cavity 131 into a plurality of mutually isolated sub-cavities 1311.

[0079] Each sub-cavity 1311 can form a sealed cavity independently. When the dishwasher 10 is running, the gas temperature in the sealed cavity formed by each sub-cavity 1311 can rise and expand, thereby effectively improving the sealing performance of the sealing ring structure 100.

[0080] In this embodiment, the sealing ring structure 100 may further include a third rib (not shown in the figure). The third rib may be located within the recess 130, and its protrusion direction and extension direction may be consistent with those of the first rib 140 and the second rib 150. During use, the third rib may be in an elastically compressed state to provide a seal between the water cup 200 and the drain pump 300 and the water distribution valve 400, thereby effectively improving the sealing effect between the water cup 200 and the drain pump 300 and the water distribution valve 400.

[0081] See Figure 2 As shown, the outer periphery of the first mounting port 210 may be provided with first screw ribs 230 at intervals, and the drain pump 300 may be provided with screws that cooperate with the first screws 330. The first screw ribs 230 can be locked in the first screws 330 so that the drain pump 300 and the water cup 200 can be connected through the cooperation of the first screws 330 and the first screw ribs 230.

[0082] This effectively improves the firmness and reliability of the connection between the first mounting head 310 and the first mounting port 210, and effectively prevents the drain pump 300 from separating from the water cup 200, thereby effectively improving the reliability and stability of the connection between the water cup 200 and the drain pump 300.

[0083] See also Figure 2 As shown, the outer periphery of the second mounting port 220 may be provided with second screw ribs 240 at intervals, and the water distribution valve 400 may be provided with a screw that cooperates with the second screw 420. The second screw ribs 240 can be locked in the second screw 420 so that the water distribution valve 400 and the water cup 200 are connected through the cooperation of the second screw 420 and the second screw ribs 240.

[0084] This effectively improves the firmness and reliability of the connection between the second mounting head 410 and the second mounting port 220, and effectively prevents the water distribution valve 400 from separating from the water cup 200, thereby effectively improving the reliability and stability of the connection between the water cup 200 and the water distribution valve 400.

[0085] Figure 12 This is a schematic diagram of the structure of a drainage pump provided in an embodiment of this application.

[0086] See Figure 12 As shown, the first mounting head 310 may also be provided with spaced-apart limiting ribs 320. The limiting ribs 320 may be located at one end of the first mounting head 310 near the first mounting opening 210, and the limiting ribs 320 may protrude from the first mounting head 310 in the radial direction. The sealing ring structure 100 may be mounted on the first mounting head 310, and the limiting ribs 320 may be used to limit the sealing ring structure 100 in the radial direction of the first mounting head 310.

[0087] For example, during the installation of the sealing ring, the sealing ring structure 100 can be first fitted onto the first mounting head 310, and then the first mounting head 310 and the sealing ring structure 100 can be inserted together into the first mounting opening 210. When the sealing ring is fitted onto the first mounting head 310, the limiting rib 320 protrudes radially from the first mounting head 310. This allows the limiting rib 320 to provide a limiting effect on the sealing ring structure 100, reducing or preventing the sealing ring structure 100 from falling off the first mounting head 310. This effectively improves the reliability and stability of the sealing ring structure 100 installed on the first mounting head 310.

[0088] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0089] In the description of this utility model, it should be understood that the terms "comprising" and "having" as used herein, and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0090] Unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0091] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing ring structure, characterized in that, include: The sealing ring body (110) is a circular ring structure; A protrusion (120) is located on the radial outer periphery of the sealing ring body (110). The recess (130) is located on the radial inner side of the sealing ring body (110), and the recess (130) forms a cavity (131) on the inner side of the sealing ring body (110).

2. The sealing ring structure according to claim 1, characterized in that, It also includes at least a first rib (140) and a second rib (150); The first rib (140) and the second rib (150) are located on both sides of the concave portion (130) along the axial direction of the sealing ring body (110), and both the first rib (140) and the second rib (150) protrude radially along the sealing ring body (110).

3. The sealing ring structure according to claim 1 or 2, characterized in that, It also includes multiple dividing bars (160); The dividing ribs (160) are located inside the recess (130) and are distributed circumferentially along the sealing ring body (110). The dividing ribs (160) divide the cavity (131) into multiple mutually isolated sub-cavities (1311).

4. The sealing ring structure according to claim 2, characterized in that, The first rib (140) and the second rib (150) both extend circumferentially along the sealing ring body (110) and form a closed ring.

5. The sealing ring structure according to claim 1 or 2, characterized in that, The cross-sectional shape of the protrusion (120) is arc-shaped; The cross-sectional shape of the concave portion (130) is arc-shaped.

6. The sealing ring structure according to claim 4, characterized in that, It also includes a third rib; The third rib is located inside the concave portion (130), and the protrusion direction and extension direction of the third rib are consistent with those of the first rib (140) and the second rib (150).

7. A dishwasher, characterized in that, It includes a water cup (200), a drain pump (300), a water distribution valve (400), and a sealing ring structure as described in any one of claims 1 to 6 above; The water cup (200) has a first mounting port (210) and a second mounting port (220); The drain pump (300) has a first mounting head (310), which cooperates with the first mounting port (210). The drain pump (300) and the water cup (200) are connected through the first mounting head (310) and the first mounting port (210). The sealing ring structure is installed between the first mounting head (310) and the first mounting port (210). And / or, the water distribution valve (400) has a second mounting head (410), which cooperates with the second mounting port (220), and the water distribution valve (400) and the water cup (200) are connected through the cooperation of the second mounting head (410) and the second mounting port (220), and the sealing ring structure is installed between the second mounting head (410) and the second mounting port (220).

8. The dishwasher according to claim 7, characterized in that, The outer periphery of the first mounting port (210) is provided with first swivel ribs (230); The drain pump (300) is provided with a buckle that cooperates with the first buckle (330). The first buckle rib (230) is locked in the first buckle (330) so that the drain pump (300) and the water cup (200) are connected through the cooperation of the first buckle (330) and the first buckle rib (230).

9. The dishwasher according to claim 7, characterized in that, The second mounting opening (220) has second swivel ribs (240) spaced apart on its outer periphery; The water distribution valve (400) is provided with a buckle that cooperates with the second buckle (420). The second buckle rib (240) is locked in the second buckle (420) so that the water distribution valve (400) and the water cup (200) are connected through the cooperation of the second buckle (420) and the second buckle rib (240).

10. The dishwasher according to claim 7, characterized in that, The first mounting head (310) is also provided with spaced limiting ribs (320). The limiting rib (320) is located at one end of the first mounting head (310) near the first mounting port (210), and the limiting rib (320) protrudes from the first mounting head (310) in the radial direction. The sealing ring structure is mounted on the first mounting head (310), and the limiting rib (320) is used to limit the sealing ring structure in the radial direction of the first mounting head (310).

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