Dishwasher spray arm assembly and dishwasher

Abstract

The present invention relates to the technical field of household appliances, and particularly relates to a dishwasher spray arm assembly and a dishwasher. The dishwasher spray arm assembly includes a spray arm; a mounting assembly that cooperates with the spray arm and the dishwasher main body respectively to fix the spray arm on the dishwasher main body; wherein, the spray arm is communicated with the water path in the dishwasher main body through the mounting assembly, and the spray arm is rotatably mounted on the mounting assembly. The dishwasher spray arm assembly further includes a first sealing assembly and a second sealing assembly. The first sealing assembly cooperates with the mounting assembly to seal on one side of the spray arm, and the second sealing assembly cooperates with the mounting assembly to seal on the other side of the spray arm. Thus, while the spray arm realizes water passing and rotation, the first sealing assembly and the second sealing assembly seal the spray arm, and the effect is better than that of the existing rotary seal, improving the sealing performance.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and particularly to a dishwasher spray arm assembly and a dishwasher. Background Art

[0002] Currently, the spray arms of tabletop, built-in and other dishwashers on the market are mostly made of plastic materials. When designing the rotary sealing structure of the spray arm, a rubber ring is generally used, and its rotary sealing structure is designed according to the standards of plastic materials. The spray arm on the dishwasher generally drives its rotary cleaning by the acting force of water during washing. In order to ensure the rotary function of the spray arm, when setting the sealing ring, a tight fit cannot be achieved, and its sealing performance is relatively poor.

[0003] This results in a certain degree of reduction in the water inlet pressure of the spray arm, reducing its cleaning effect. At the same time, the existing design scheme has relatively low versatility and is difficult to be used on spray arms made of other different materials. Summary of the Invention

[0004] The main purpose of the present invention is to provide a dishwasher spray arm assembly and a dishwasher to solve the problem of poor sealing performance in the prior art while realizing the rotary function of the spray arm.

[0005] To achieve the above object, the present invention provides a dishwasher spray arm assembly, including: a spray arm; a mounting assembly respectively cooperating with the spray arm and the dishwasher main body to fix the spray arm on the dishwasher main body; wherein, the spray arm is communicated with the water path in the dishwasher main body through the mounting assembly, the spray arm is rotatably mounted on the mounting assembly, and the dishwasher spray arm assembly further includes a first sealing assembly and a second sealing assembly. The first sealing assembly cooperates with the mounting assembly for sealing on one side of the spray arm, and the second sealing assembly cooperates with the mounting assembly for sealing on the other side of the spray arm.

[0006] Further, the mounting assembly penetrates through the spray arm, the upper edge of the spray arm is sealed with the spray arm through the first sealing assembly, and the lower edge of the spray arm is sealed with the spray arm through the second sealing assembly.

[0007] Further, the first sealing assembly includes a first sealing ring with one end abutted against the spray arm and the other end abutted against the dishwasher main body.

[0008] Further, the first sealing ring is formed by polytetrafluoroethylene material.

[0009] Further, the first sealing assembly further includes a first elastic sealing ring cooperating with the first sealing ring, and the first elastic sealing ring is arranged between the first sealing ring and the mounting assembly.

[0010] Further, the second sealing assembly includes a second sealing ring with one end abutting against the spray arm and the other end abutting against the mounting assembly.

[0011] Further, the second sealing ring is formed by polytetrafluoroethylene material.

[0012] Further, the second sealing assembly further includes a second elastic sealing ring cooperating with the second sealing ring, and the second elastic sealing ring is disposed between the second sealing ring and the mounting assembly.

[0013] Further, the mounting assembly includes a first fixing member mounted on the dishwasher main body and a second fixing member supporting the spray arm, and the first fixing member and the second fixing member are threadedly connected.

[0014] Further, the first fixing member includes a mounting bracket, and the mounting bracket is fixed on the inner tank of the dishwasher main body.

[0015] Further, the first fixing member and the second fixing member are sealed by a third sealing member between the threaded connection and the dishwasher main body.

[0016] Further, the second fixing member includes a bracket, and the bracket is at the bottom of the spray arm and supports the spray arm.

[0017] The present invention also provides a dishwasher, including a dishwasher spray arm assembly, and the dishwasher spray arm assembly is the dishwasher spray arm assembly as described above.

[0018] The technical solution of the present invention has the following advantages:

[0019] 1. In the dishwasher spray arm assembly and the dishwasher provided by the present invention, the spray arm is rotatably mounted on the mounting assembly, and one side thereof is in sealed cooperation with the mounting assembly through the first sealing assembly, and the other side is in sealed cooperation with the mounting assembly through the second sealing assembly. Thus, while the spray arm realizes water passing and rotation, the first sealing assembly and the second sealing assembly seal the spray arm, and the effect is better than the existing rotary seal, improving the sealing performance.

[0020] 2. In the dishwasher spray arm assembly and the dishwasher provided by the present invention, the mounting assembly penetrates through the spray arm, the upper edge of the spray arm is sealed with the spray arm through the first sealing assembly, and the lower edge of the spray arm is sealed with the spray arm through the second sealing assembly. The first sealing assembly and the second sealing assembly only play a sealing role in the spray arm, reducing the influence on the rotation of the spray arm, and the sealing tightness can be further improved, further improving the sealing performance.

[0021] 3. In the dishwasher spray arm assembly and the dishwasher provided by the present invention, the first sealing assembly includes a first sealing ring with one end abutted against the spray arm and the other end abutted against the dishwasher main body. The first sealing ring is formed by polytetrafluoroethylene material. While achieving the sealing performance, the spray arm has the advantages of small starting resistance and smooth operation during rotation.

[0022] 4. In the dishwasher spray arm assembly and the dishwasher provided by the present invention, the second sealing assembly includes a second sealing ring with one end abutted against the spray arm and the other end abutted against the mounting assembly. The second sealing ring is formed by polytetrafluoroethylene material. While achieving the sealing performance, the spray arm has the advantages of small starting resistance and smooth operation during rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In the drawings:

[0024] Figure 1 is a three-dimensional structural schematic diagram of the dishwasher spray arm assembly in the embodiment of the present invention.

[0025] Figure 2 is Figure 1 a cross-sectional structural schematic diagram of the shown dishwasher spray arm assembly and the dishwasher.

[0026] Among them, the reference numerals in the above drawings are:

[0027] 1. Second fixing member; 11. Bracket; 2. Spray arm; 3. Inner liner of the dishwasher main body; 4. First fixing member; 41. Mounting rack; 5. Third sealing member; 6. First sealing ring; 7. First elastic sealing ring; 8. Second sealing ring; 9. Second elastic sealing ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions of the present invention with reference to the drawings. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation on the present invention. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0030] As Figure 1 and Figure 2 shown, the dishwasher spray arm assembly in this embodiment includes a spray arm 2; a mounting assembly that cooperates with the spray arm 2 and the dishwasher main body respectively to fix the spray arm 2 on the dishwasher main body; wherein, the spray arm 2 is in communication with the water circuit in the dishwasher main body through the mounting assembly, and the spray arm 2 is rotatably mounted on the mounting assembly. The dishwasher spray arm assembly further includes a first sealing assembly and a second sealing assembly. The first sealing assembly cooperates with the mounting assembly to seal on one side of the spray arm 2, and the second sealing assembly cooperates with the mounting assembly to seal on the other side of the spray arm 2. Thus, by using the dishwasher spray arm assembly in this embodiment, the spray arm 2 is rotatably mounted on the mounting assembly, and one side thereof is in sealed cooperation with the mounting assembly through the first sealing assembly, and the other side is in sealed cooperation with the mounting assembly through the second sealing assembly. Thus, while the spray arm 2 realizes water passing and rotation, the first sealing assembly and the second sealing assembly seal the spray arm 2, and the effect is better than that of the existing rotary seal, improving the sealing performance.

[0031] At the same time, by using the above-mentioned dishwasher spray arm assembly, the material of the spray arm 2 is not limited. For example, plastics, stainless steel, etc. can be used, and the sealing effect can also be ensured.

[0032] The specific mounting assembly penetrates through the spray arm 2. The upper edge of the spray arm 2 is sealed with the spray arm 2 through the first sealing assembly, and the lower edge of the spray arm 2 is sealed with the spray arm 2 through the second sealing assembly. The first sealing assembly and the second sealing assembly only play a sealing role in the spray arm 2, reducing the influence on the rotation of the spray arm 2, and the tightness of the seal can be further improved, further improving the sealing performance.

[0033] Preferably, the first sealing assembly in this embodiment includes a first sealing ring 6 with one end abutted against the spray arm 2 and the other end abutted against the dishwasher main body. The first sealing ring 6 is formed by polytetrafluoroethylene material. While realizing the sealing performance, the spray arm 2 has the advantages of small starting resistance and smooth operation during the rotation process.

[0034] The first sealing assembly further includes a first elastic sealing ring 7 that cooperates with the first sealing ring 6. The first elastic sealing ring 7 is disposed between the first sealing ring 6 and the mounting assembly, preferably with an interference fit, further enhancing the sealing performance of the first sealing assembly.

[0035] The second sealing assembly includes a second sealing ring 8 with one end abutting against the spray arm 2 and the other end abutting against the mounting assembly. The second sealing ring 8 is formed by polytetrafluoroethylene material. While achieving the sealing performance, the spray arm 2 has the advantages of small starting resistance and smooth operation during rotation.

[0036] The second sealing assembly further includes a second elastic sealing ring 9 that cooperates with the second sealing ring 8. The second elastic sealing ring 9 is disposed between the second sealing ring 8 and the mounting assembly, preferably with an interference fit, further enhancing the sealing performance of the second sealing assembly.

[0037] Specifically, the mounting assembly in this embodiment includes a first fixing member 4 mounted on the dishwasher main body and a second fixing member 1 that holds the spray arm 2. The first fixing member 4 and the second fixing member 1 are threadedly connected. During the operation of the spray arm 2, it has good stability, facilitating the adjustment of the clearance of the spray arm 2.

[0038] Specifically, the first fixing member 4 includes a mounting frame 41, and the mounting frame 41 is fixed on the inner tank 3 of the dishwasher main body.

[0039] Preferably, the first fixing member 4 and the second fixing member 1 are sealed by a third sealing member 5 between the threaded connection and the dishwasher main body, further enhancing the sealing performance of the dishwasher spray arm assembly.

[0040] Preferably, the second fixing member 1 includes a bracket 11, and the bracket 11 is at the bottom of the spray arm 2 and holds the spray arm 2, further ensuring the reliability of the spray arm 2 during rotation.

[0041] This embodiment also provides a dishwasher, including the dishwasher spray arm assembly as described above. Therefore, the dishwasher in this embodiment should also have the advantages of the above-mentioned dishwasher spray arm assembly, which will not be elaborated here.

[0042] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of the present invention.

Claims

1. A dishwasher spray arm assembly, characterized in that, Comprising: A spray arm (2); An installation component, which cooperates with the spray arm (2) and the dishwasher main body respectively to fix the spray arm (2) on the dishwasher main body; wherein, the spray arm (2) is communicated with the water circuit in the dishwasher main body through the installation component, the spray arm (2) is rotatably installed on the installation component, the dishwasher spray arm assembly further includes a first sealing component and a second sealing component, the installation component penetrates through the spray arm (2), the upper edge of the spray arm (2) is sealed with the inner liner (3) of the dishwasher main body through the first sealing component, and the lower edge of the spray arm (2) is sealed with the installation component through the second sealing component; The installation component includes a first fixing member (4) installed on the dishwasher main body and a second fixing member (1) supporting the spray arm (2), and the first fixing member (4) and the second fixing member (1) are connected by threads; The first fixing member (4) is located outside the inner liner (3), and the threaded connection part between the first fixing member (4) and the second fixing member (1) is located at the position where the first fixing member (4) is connected to the inner liner (3); the threaded connection part between the first fixing member (4) and the second fixing member (1) and the inner liner of the dishwasher main body are sealed by a third sealing member (5).

2. The dishwasher spray arm assembly according to claim 1, wherein, The first sealing component includes a first sealing ring (6) with one end abutted against the spray arm (2) and the other end abutted against the dishwasher main body.

3. The dishwasher spray arm assembly according to claim 2, wherein, The first sealing ring (6) is formed by polytetrafluoroethylene material.

4. The dishwasher spray arm assembly according to claim 2, wherein, The first sealing component further includes a first elastic sealing ring (7) cooperating with the first sealing ring (6), and the first elastic sealing ring (7) is arranged between the first sealing ring (6) and the installation component.

5. The dishwasher spray arm assembly according to claim 1, wherein, The second sealing component includes a second sealing ring (8) with one end abutted against the spray arm (2) and the other end abutted against the installation component.

6. The dishwasher spray arm assembly according to claim 5, wherein, The second sealing ring (8) is formed by polytetrafluoroethylene material.

7. The dishwasher spray arm assembly according to claim 5, wherein The second sealing component further includes a second elastic sealing ring (9) cooperating with the second sealing ring (8), and the second elastic sealing ring (9) is arranged between the second sealing ring (8) and the installation component.

8. The dishwasher spray arm assembly according to claim 1, wherein, The first fixing member (4) includes a mounting bracket (41), and the mounting bracket (41) is fixed on the inner liner (3) of the dishwasher main body.

9. The dishwasher spray arm assembly according to claim 1, characterized in that, The second fixing member (1) includes a bracket (11), and the bracket (11) is at the bottom of the spray arm (2) and supports the spray arm (2).

10. A dishwasher, comprising a dishwasher spray arm assembly, characterized in that, The dishwasher spray arm assembly is the dishwasher spray arm assembly according to any one of claims 1 to 9.

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