A dishwasher spray arm and a dishwasher

CN224925114UActive Publication Date: 2026-11-03GUANGDONG JIENUO HOUSEHOLD APPLIANCES CO LTD
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Patent Information

Application Number
CN202522213315.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-20
Publication Date
2026-11-03
Estimated Expiration
2035-10-20

AI Technical Summary

Technical Problem

Existing dishwashers' spray arms can only rotate in one direction, resulting in some dishes not being effectively covered by the water flow, thus reducing the cleaning effect.

Method used

A dishwasher spray arm was designed with multiple water jet directions. By setting rotatable secondary spray arms on the main body of the spray arm, the water outlet directions of the second power holes of at least two secondary spray arms are opposite, forming a three-dimensional cross-jet network.

Benefits of technology

It effectively solves the problem of blind spots in cleaning caused by the uniform placement of tableware, and significantly improves the cleaning effect and uniformity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of dish-washing machine spray arm and dish-washing machine, including spray arm main body, the middle part position of spray arm main body is equipped with water inlet, the other side of spray arm main body relative to water inlet is equipped with first water jet orifice and first power hole, the end of at least two opposite settings of spray arm main body is equipped with sub-spray arm, sub-spray arm is rotatably connected with spray arm main body, the inside of sub-spray arm is communicated with the inside of spray arm main body, sub-spray arm is equipped with second water jet orifice and second power hole, the water outlet direction of second power hole on at least two sub-spray arms is opposite.In the spray arm main body is set up rotatable sub-spray arm, and make the water outlet direction of second power hole of at least two sub-spray arms be opposite, can drive sub-spray arm and spray arm main body produce different direction's rotation.This makes the water flow from first water jet orifice, second water jet orifice can cover multiple directions, form three-dimensional intersection's spray network, effectively solve the problem of cleaning blind area caused by the single direction of utensil placement, significantly improve cleaning effect.
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Description

Technical Field

[0001] This utility model relates to the field of dishwashers, and more particularly to a dishwasher spray arm and a dishwasher. Background Technology

[0002] Currently, existing spray arm technology typically only supports rotation in one direction, resulting in a relatively fixed direction of water flow from the nozzles on the spray arm. During the placement of tableware, to achieve optimal cleaning results, the rim of the bowl should usually face the direction of the nozzle so that the water flow can directly rinse the inner surface of the tableware. However, in actual use, due to limitations in the structure and space layout of the dish rack, some tableware often has to be placed with its back facing the water flow, preventing these tableware from being effectively covered by the water flow and significantly reducing the cleaning effect.

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

[0004] The purpose of this invention is to overcome the above-mentioned problems. We provide a dishwasher spray arm that has multiple water jet directions.

[0005] To achieve the above objectives, this utility model provides a dishwasher spray arm, including a spray arm body, a water inlet at the middle of the spray arm body, a first water spray hole and a first power hole on the other side of the spray arm body opposite to the water inlet, and auxiliary spray arms on at least two opposite ends of the spray arm body. The auxiliary spray arms are rotatably connected to the spray arm body, and the interior of the auxiliary spray arms is in communication with the interior of the spray arm body. The auxiliary spray arms are provided with a second water spray hole and a second power hole. The water outlet directions of the second power holes on at least two auxiliary spray arms are opposite; or, the water outlet directions of the second power holes on all auxiliary spray arms are the same.

[0006] In one or more embodiments, the auxiliary spray arm is provided with a water inlet, and the main body of the spray arm is provided with a water outlet that is connected to the water inlet. The water inlet and the water outlet can rotate relative to each other after they are connected.

[0007] In one or more embodiments, the main body of the spray arm is provided with an annular enclosure, and a locking platform is provided around the outer wall of the annular enclosure. The auxiliary spray arm is provided with multiple anti-detachment claws around the outer wall of the annular enclosure. The anti-detachment claws can engage with the lower end face of the locking platform. The water outlet is located in the middle of the annular enclosure.

[0008] In one or more embodiments, the number of the anti-detachment claws is two, three, or four.

[0009] In one or more embodiments, the auxiliary spray arm is arranged parallel to the main body of the spray arm, the auxiliary spray arm is arranged horizontally, and the second water spray hole and the second power hole are respectively located at both ends of the auxiliary spray arm.

[0010] In one or more embodiments, the spray arm body has four ends, each end of which is provided with a secondary spray arm, and the spray arm body is in the shape of a cross, an X, or an H.

[0011] This utility model also provides a dishwasher having the dishwasher spray arm described above.

[0012] Compared with the prior art, the advantages of this invention are: by setting rotatable auxiliary spray arms on the main body of the spray arm, and making the water outlet directions of the second power holes of at least two auxiliary spray arms opposite, the auxiliary spray arms and the main body of the spray arm can be driven to rotate in different directions. This allows the water flow sprayed from the first and second spray holes to cover multiple directions, forming a three-dimensional crisscrossing spray network, effectively solving the problem of blind spots in cleaning caused by the single orientation of tableware, and significantly improving the cleaning effect and uniformity. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the dishwasher spray arm in this embodiment; Figure 2 This is a cross-sectional view of the dishwasher spray arm passing through the centerline of the water inlet in this embodiment. Detailed Implementation

[0014] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0015] Example 1 See appendix Figure 1-2 This application provides a dishwasher spray arm, including a spray arm body 1. A water inlet 2 is located in the middle of the spray arm body 1. A first water spray hole 3 and a first power hole 4 are located on the other side of the spray arm body 1 opposite to the water inlet 2. The key feature is that at least two opposite ends of the spray arm body 1 are provided with auxiliary spray arms 5 to ensure balanced weight distribution between the two opposite ends of the spray arm body 1, avoiding weight differences that could affect the stability of the spray arm body 1. The auxiliary spray arms 5 are rotatably connected to the spray arm body 1, and their interiors communicate with the interior of the spray arm body 1. Water from inside the spray arm body 1 supplies the auxiliary spray arms 5. The auxiliary spray arms 5 are provided with a second water spray hole 6 and a second power hole 7. The water outlet directions of the second power holes 6 on at least two auxiliary spray arms 5 are opposite. This structure allows the dishwasher spray arm to spray water onto the tableware from different angles and directions, significantly expanding the water flow coverage area and effectively solving the problem of cleaning dead angles caused by the single orientation of the tableware, thereby improving the overall cleaning effect of the dishwasher.

[0016] See Figure 2 The auxiliary spray arm 5 is provided with a water inlet 8, and the main body 1 of the spray arm is provided with a water outlet 9 that connects to the water inlet 8. The water inlet 8 and the water outlet 9 can rotate relative to each other after they are connected. Through the rotating connection design of the water inlet 8 and the water outlet 9, the water flow can be stably delivered from the main body 1 of the spray arm to the auxiliary spray arm 5, while giving the auxiliary spray arm 5 an independent degree of rotational freedom. This structure simplifies the assembly process and makes the installation and maintenance of the auxiliary spray arm 5 more convenient.

[0017] The main body of the spray arm 1 is provided with an annular wall 10, and a retaining platform 11 is provided around the outer wall of the annular wall 10. The auxiliary spray arm 5 is provided with multiple anti-detachment claws 12 around the outer wall of the annular wall 10. The anti-detachment claws 12 can engage with the lower end face of the retaining platform 11. The water outlet 9 is located in the middle of the annular wall 10. The cooperation of the annular wall 10, the retaining platform 11 and the anti-detachment claws 12 constitutes a reliable axial limiting structure, which can effectively prevent the auxiliary spray arm 5 from falling off the main body of the spray arm 1 under the action of rotation or water flow impact. Furthermore, the number of anti-detachment claws 12 is two, three or four, providing a flexible and reliable selection for auxiliary spray arms 5 of different sizes and force requirements.

[0018] The auxiliary spray arm 5 is arranged parallel to the main body 1 and is horizontally positioned. The second water spray hole 6 and the second power hole 7 are located at both ends of the auxiliary spray arm 5. The reasonable arrangement of the auxiliary spray arm 5 enables it to rotate autonomously and in a balanced manner, further optimizing the uniformity of water flow coverage.

[0019] The spray arm body 1 has four ends, each of which is equipped with a secondary spray arm 5. The spray arm body 1 is in the shape of a cross, an X, or an H, which further increases the water spray coverage area of ​​the dishwasher spray arm.

[0020] This application also provides a dishwasher having the dishwasher spray arm described above.

[0021] Example 2 differs from Example 1 in that the water outlet direction of the second power hole 6 on all auxiliary spray arms 5 is the same.

[0022] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A dishwasher spray arm, comprising a spray arm body, wherein a water inlet (2) is provided at the middle position of the spray arm body (1), and a first spray hole (3) and a first power hole (4) are provided on the other side of the spray arm body (1) opposite to the water inlet (2), characterized in that: The main body of the spray arm (1) has at least two oppositely arranged ends provided with auxiliary spray arms (5), which are rotatably connected to the main body of the spray arm (1). The interior of the auxiliary spray arms (5) is connected to the interior of the main body of the spray arm (1). The auxiliary spray arms (5) are provided with a second water spray hole (6) and a second power hole (7). The water outlet direction of the second power hole (7) on at least two auxiliary spray arms (5) is opposite; or, the water outlet direction of the second power hole (7) on all auxiliary spray arms (5) is the same.

2. The dishwasher spray arm according to claim 1, characterized in that: The auxiliary spray arm (5) is provided with a water inlet (8), and the main body of the spray arm (1) is provided with a water outlet (9) that connects to the water inlet (8). The water inlet (8) and the water outlet (9) can rotate relative to each other after they are connected.

3. A dishwasher spray arm according to claim 2, characterized in that: The main body of the spray arm (1) is provided with an annular wall (10), and a locking platform (11) is provided around the outer wall of the annular wall (10). The auxiliary spray arm (5) is provided with multiple anti-detachment claws (12) around the outer wall of the annular wall (10). The anti-detachment claws (12) can be engaged with the lower end face of the locking platform (11). The water outlet (9) is located in the middle of the annular wall (10).

4. A dishwasher spray arm according to claim 3, characterized in that: The number of the anti-detachment claws (12) is two, three, or four.

5. A dishwasher spray arm according to claim 2, characterized in that: The auxiliary spray arm (5) is arranged parallel to the main body of the spray arm (1), and the auxiliary spray arm (5) is arranged horizontally. The second water spray hole (6) and the second power hole (7) are respectively located at both ends of the auxiliary spray arm (5).

6. A dishwasher spray arm according to claim 1, characterized in that: The main body of the spray arm (1) has four ends, each end of which is provided with a secondary spray arm (5). The main body of the spray arm (1) is in the shape of a cross, an X, or an H.

7. A dishwasher, characterized in that: The dishwasher has a dishwasher spray arm as described in any one of claims 1-6.