Dishwasher spray arm sealing structure and dishwasher

Abstract

The utility model relates to a spray arm sealing structure of a dishwasher, which includes a spray arm bracket and a spray arm body, wherein the interface of the spray arm body is rotatably connected to the shaft of the spray arm bracket, and the shaft is provided with a water-passing structure connected to the spray arm body, and a sealing body is provided at the connection between the interface of the spray arm body and the shaft, and the sealing body includes an annular sealing part and an annular sealing lip formed on the inner side of the annular sealing part and abutting against the shaft, and the annular sealing part is fixed on the spray arm body. By providing a sealing body at the connection between the interface of the spray arm body and the shaft, the annular sealing lip on the sealing body abuts against the shaft, ensuring that the annular sealing lip always abuts against and seals against the shaft during the rotation of the spray arm body, thereby solving the problem of water leakage; in addition, the extension direction of the annular sealing lip is opposite to the overflow direction of the water flow, thereby further improving the sealing performance.

Description

Technical Field

[0001] The utility model relates to a dishwasher spray arm sealing structure and a dishwasher. Background Art

[0002] A dishwasher is a kitchen appliance that can automatically clean and dry tableware and cooking pots. A rotatable spray arm is provided in the washing chamber of the dishwasher to spray the tableware in all directions. The rotation of the spray arm relies on the pressure of the input water to make it rotate. However, there is a problem of insufficient sealing between the spray arms on the market at this stage, which leads to water leakage, reduces the water pressure and affects the rotation of the spray arm, thereby affecting the cleaning effect.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of the utility model is to overcome the above problems. We provide a sealing structure for a spray arm of a dishwasher. The spray arm adopting the sealing structure solves the problem of insufficient sealing with the spray arm bracket.

[0005] To achieve the above-mentioned purpose, the utility model provides a sealing structure for a dishwasher spray arm, which includes a spray arm bracket and a spray arm body, the interface of the spray arm body is rotatably connected to the shaft portion of the spray arm bracket, the shaft portion is provided with a water flow structure connected to the spray arm body, the interface of the spray arm body is provided with a sealing body at the connection with the shaft portion, the sealing body includes an annular sealing portion and an annular sealing lip formed on the inner side surface of the annular sealing portion and abutting against the shaft portion, and the annular sealing portion is fixed to the spray arm body.

[0006] In one or more embodiments, the extending direction of the annular sealing lip is opposite to the overflow direction of the water flow.

[0007] In one or more embodiments, the inner wall of the interface is provided with a plurality of circumferentially evenly distributed bosses and a plurality of circumferentially evenly distributed claws, and the annular sealing portion is provided with recesses cooperating with the bosses and clamping positions for the clamping claws to press, and the clamping positions and recesses are respectively located at the upper and lower ends of the annular sealing portion.

[0008] In one or more embodiments, the claw and the boss are staggered when viewed from a top view.

[0009] In one or more embodiments, the water flow structure is composed of a plurality of water outlet holes.

[0010] In one or more embodiments, the spray arm bracket includes a first frame and a second frame, the first frame and the second frame are fixed by screws, and sealing rings are provided between the first frame and the spray arm body and between the second frame and the spray arm body.

[0011] In one or more embodiments, an annular rib is provided on the surface of the spray arm body that contacts the sealing ring.

[0012] The present application also provides a dishwasher having the above-mentioned spray arm sealing structure.

[0013] Compared with the background technology, the utility model has the following effects: a sealing body is provided at the connection between the interface of the spray arm body and the shaft, and the annular sealing lip on the sealing body is abutted against the shaft, thereby ensuring that during the rotation of the spray arm body, the annular sealing lip is always abutted against and sealed against the shaft, thereby solving the water leakage problem; in addition, the extension direction of the annular sealing lip is opposite to the overflow direction of the water flow, thereby further improving the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the spray body and the spray bracket of the embodiment of the utility model;

[0015] Figure 2 This is an exploded view of the spray body and the spray bracket of the embodiment of the utility model;

[0016] Figure 3 It is a cross-sectional view of the spray body and the spray bracket according to an embodiment of the utility model. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0018] Please see Figure 1-3 This embodiment provides a dishwasher spray arm sealing structure, which includes a spray arm bracket and a spray arm body 1. The interface 2 of the spray arm body is rotatably connected to the shaft 3 of the spray arm bracket. The shaft is provided with a water flow structure connected to the spray arm body. The interface of the spray arm body 1 is provided with a sealing body at the connection with the shaft. The sealing body includes an annular sealing part 4 and an annular sealing lip 5 formed on the inner side of the annular sealing part and abutting against the shaft. The annular sealing part is fixed on the spray arm body, and the annular sealing lip is continuously abutted against the shaft to ensure the sealing between the spray arm bracket and the spray arm body. The interface in this scheme is provided with sealing bodies at both ends, and the water flow structure is located between the sealing bodies at both ends.

[0019] The extending direction of the annular sealing lip 5 is opposite to the overflow direction of the water flow. The use of this structure can improve the sealing performance of the annular sealing lip and further strengthen the sealing performance of the connection between the spray arm bracket and the spray arm body.

[0020] The inner wall of the interface 2 is provided with a plurality of circumferentially uniformly distributed bosses 6 and a plurality of circumferentially uniformly distributed claws 7. The annular sealing portion 4 is provided with a recessed position 8 that cooperates with the boss and a clamping position 9 for the clamping claw to hold. The clamping position and the recessed position are respectively located at the upper and lower ends of the annular sealing portion. The recessed position and the clamping position respectively hold the upper and lower ends of the annular sealing portion, thereby playing a good fixing role for the annular sealing portion to prevent it from moving up and down and rotating. Furthermore, in a top-down view, the clamping claw 7 is staggered with the boss 6. The use of this structure can further enhance the structural stability of the annular sealing portion installed behind the spray arm body, and can prevent its deformation and displacement.

[0021] The water flow structure is composed of a plurality of water outlet holes 10, which ensures uniform water flow and ensures that water can evenly enter the spray arm body.

[0022] The spray arm bracket includes a first frame 11 and a second frame 12, which are fixed to each other by screws. The screw fixation has the advantage of easy installation and disassembly. A sealing ring 13 is arranged between the first frame and the spray arm body and between the second frame and the spray arm body. The sealing ring can further enhance the sealing performance between the spray arm body and the spray arm bracket.

[0023] An annular convex rib 101 is provided on the surface of the spray arm body 1 that contacts the sealing ring. The annular convex rib can reduce the contact area between the spray arm body and the sealing ring, reduce the friction force, and enable the spray arm body to still rotate smoothly.

[0024] The present application also provides a dishwasher, which includes the spray arm sealing structure in the above solution.

[0025] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.

Claims

1. A dishwasher spray arm sealing structure, characterized in that: The spray arm comprises a spray arm support and a spray arm body (1), wherein an interface (2) of the spray arm body is rotatably connected to a shaft (3) of the spray arm support, the shaft is provided with a water-passing structure connected to the spray arm body, and a sealing body is provided at the connection between the interface of the spray arm body (1) and the shaft, the sealing body comprises an annular sealing part (4) and an annular sealing lip (5) formed on the inner side of the annular sealing part and abutting against the shaft, and the annular sealing part is fixed to the spray arm body.

2. A dishwasher spray arm sealing structure according to claim 1, characterized in that: The extending direction of the annular sealing lip (5) is opposite to the overflow direction of the water flow.

3. A dishwasher spray arm sealing structure according to claim 1, characterized in that: The inner wall of the interface (2) is provided with a plurality of circumferentially evenly distributed bosses (6) and a plurality of circumferentially evenly distributed claws (7), and the annular sealing portion (4) is provided with a recessed position (8) cooperating with the boss and a clamping position (9) for the clamping claw to hold, and the clamping position and the recessed position are respectively located at the upper and lower ends of the annular sealing portion.

4. A dishwasher spray arm sealing structure according to claim 3, characterized in that: In a top view, the clamping claw (7) and the boss (6) are arranged in a staggered manner.

5. A dishwasher spray arm sealing structure according to claim 1, characterized in that: The water flow structure is composed of a plurality of water outlet holes (10).

6. A dishwasher spray arm sealing structure according to any one of claims 1 to 5, characterized in that: The spray arm bracket comprises a first frame body (11) and a second frame body (12), the first frame body and the second frame body are connected and fixed by screws, and a sealing ring (13) is provided between the first frame body and the spray arm body and between the second frame body and the spray arm body.

7. A dishwasher spray arm sealing structure according to claim 6, characterized in that: An annular convex rib (101) is provided on the surface of the spray arm body (1) that contacts the sealing ring.

8. A dishwasher, characterized in that: The dishwasher comprises the spray arm sealing structure according to any one of claims 1 to 7.

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