A spray arm and a dishwasher

Abstract

The utility model relates to a kind of spray arm and dish-washing machine, it includes main spray arm and vice spray arm, main spray arm is equipped with water inlet and water outlet, the outside of water outlet is equipped with first enclosing wall, bearing piece is arranged on first enclosing wall, the outer ring of bearing piece is in close contact with first enclosing wall, the vice spray arm has the water inlet interface of butt joint with water outlet, vice spray arm has second enclosing wall, second enclosing wall is in close contact with the inner ring of bearing piece. By setting first enclosing wall outside the water outlet of main spray arm, and installing bearing piece on first enclosing wall, make bearing piece outer ring and first enclosing wall close contact, while the second enclosing wall of vice spray arm and bearing piece inner ring close contact, effectively improve the structural stability and cooperation precision of main spray arm and vice spray arm connection, significantly reduce the shaking of vice spray arm in working process, ensure that it rotates more stable and reliable.

Description

Technical Field

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

[0002] A dishwasher is a kitchen appliance that can clean, disinfect, and dry various tableware. To improve cleaning efficiency and reduce blind spots, dishwashers on the market often have an independently rotating auxiliary spray arm installed on the main spray arm. This auxiliary spray arm rotates and sprays water using the impact force of the water flow generated by the main spray arm. Currently, the auxiliary spray arm is connected to the main spray arm via a snap-fit ​​connection. This connection method results in poor tightness at the joint, making the auxiliary spray arm prone to wobbling.

[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 spray arm and a dishwasher that improves the connection structure between the main spray arm and the auxiliary spray arm, which can ensure the stability of the rotation of the auxiliary spray arm.

[0005] To achieve the above objectives, this utility model provides a spray arm, which includes a main spray arm and a secondary spray arm. The main spray arm is provided with a water inlet and a water outlet. A first enclosure is provided on the outer side of the water outlet. A bearing component is provided on the first enclosure. The outer ring of the bearing component is in close contact with the first enclosure. The secondary spray arm has a water inlet interface that connects to the water outlet. The secondary spray arm has a second enclosure. The second enclosure is in close contact with the inner ring of the bearing component.

[0006] In one or more embodiments, the first enclosure wall is provided with a plurality of downwardly positioned elastic first hooks, which are engaged with the bottom of the outer ring.

[0007] In one or more embodiments, a first protrusion is provided on the inner wall of the first enclosure, and the first protrusion is located above the outer ring.

[0008] In one or more embodiments, the second enclosure wall is provided with a plurality of upward-facing elastic second hooks, which are engaged with the top of the inner ring.

[0009] In one or more embodiments, a second protrusion is provided on the outer wall of the second enclosure, and the second protrusion is located below the inner ring.

[0010] In one or more embodiments, the water inlet is located in the middle of the main spray arm, and auxiliary spray arms are provided at both ends of the main spray arm.

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

[0012] Compared with the prior art, the advantages of this utility model are: by setting a first enclosure wall outside the water outlet of the main spray arm and installing bearing components on the first enclosure wall, the outer ring of the bearing components is in close contact with the first enclosure wall, and at the same time, the second enclosure wall of the auxiliary spray arm is in close contact with the inner ring of the bearing components. This effectively improves the structural stability and fitting accuracy of the connection between the main spray arm and the auxiliary spray arm, significantly reduces the shaking of the auxiliary spray arm during operation, and ensures that its rotation is more stable and reliable. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the connection between the main spray arm and the auxiliary spray arm in this embodiment; Figure 2 This is a schematic diagram of the structure of the auxiliary spray arm before installation in this embodiment; Figure 3 for Figure 2 A schematic diagram of the structure from another angle. 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] See appendix Figure 1-3 This application provides a spray arm, comprising a main spray arm 1 and a secondary spray arm 2. The main spray arm 1 has a water inlet 3 and a water outlet 4. A first enclosure 5 is provided on the outer side of the water outlet 4, and a bearing component 6 is provided on the first enclosure 5. The outer ring 61 of the bearing component 6 is in close contact with the first enclosure 5. The secondary spray arm 2 has a water inlet 7 that connects to the water outlet 4, and a second enclosure 8 that is in close contact with the inner ring 62 of the bearing component 6. This solution provides a bearing component 6 between the main spray arm 1 and the secondary spray arm 2. This structure upgrades the traditional snap-fit ​​connection to a bearing support connection, greatly improving the structural stability and fitting accuracy at the connection between the main spray arm 1 and the secondary spray arm 2. It can effectively suppress the radial and axial sway of the secondary spray arm 2 caused by water flow impact during operation, ensuring that the rotation of the secondary spray arm 2 is more stable and reliable, thereby improving the cleaning effect and reducing operating noise. The first enclosure 5 is provided with several downward-facing elastic first hooks 9, which engage with the bottom of the outer ring 61. By securing the outer ring 61 of the bearing component 6 from below using the first hooks 9, this structure facilitates the installation and positioning of the bearing component 6, while effectively preventing the bearing component 6 from loosening from the first enclosure 5 during operation, thus enhancing the connection's strength and ease of assembly. A first protrusion 10 is provided on the inner wall of the first enclosure 5, and the first protrusion 10 is located above the outer ring 61. The first protrusion 10 and the first hook 9 work together to firmly restrict the outer ring 61 of the bearing component 6 within the first enclosure 5 from both upper and lower directions, forming a stable axial clamping structure. This further prevents the bearing component 6 from axially shifting under vibration or water flow impact, ensuring the long-term stability of the connection between the main spray arm 1 and the auxiliary spray arm 2.

[0016] The second enclosure 8 is provided with several upward-facing elastic second hooks 11, which engage with the top of the inner ring 62. The second hooks 11 lock the inner ring 62 of the bearing component 6 from above, providing reliable axial fixation for the connection between the auxiliary spray arm 2 and the inner ring 62. This ensures that the auxiliary spray arm 2 can rotate stably with the inner ring 62, preventing it from disengaging from the inner ring 62, and further improving the stability and reliability of the auxiliary spray arm 2's operation.

[0017] A second protrusion 12 is provided on the outer wall of the second enclosure 8. The second protrusion 12 is located below the inner ring 62. The second protrusion 12 cooperates with the second hook 11 to firmly fix the inner ring 62 to the second enclosure 8 from both the bottom and top directions. This double limiting structure greatly enhances the connection strength between the inner ring 62 and the auxiliary spray arm 2, effectively preventing relative displacement or loosening between the auxiliary spray arm 2 and the inner ring 62 when rotating at high speed or under uneven force.

[0018] The water inlet 3 is located in the middle of the main spray arm 1, and auxiliary spray arms 2 are provided at both ends of the main spray arm 1. The two auxiliary spray arms can rotate synchronously or independently and stably, which can expand the water spray coverage of the dishwasher, reduce cleaning dead corners, and thus improve the overall cleaning efficiency and uniformity of the dishwasher.

[0019] This application also provides a dishwasher having the spray arm described above.

[0020] 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 spray arm, characterized in that: The system includes a main spray arm (1) and a secondary spray arm (2). The main spray arm (1) is provided with an inlet (3) and an outlet (4). A first enclosure (5) is provided on the outside of the outlet (4). A bearing component (6) is provided on the first enclosure (5). The outer ring (61) of the bearing component (6) is in close contact with the first enclosure (5). The secondary spray arm (2) has an inlet interface (7) that connects to the outlet (4). The secondary spray arm (2) has a second enclosure (8). The second enclosure (8) is in close contact with the inner ring (62) of the bearing component (6).

2. A spray arm according to claim 1, characterized in that: The first enclosure (5) is provided with a number of downward-facing elastic first hooks (9), which are fastened to the bottom of the outer ring (61).

3. A spray arm according to claim 2, characterized in that: A first protrusion (10) is provided on the inner wall of the first enclosure (5), and the first protrusion (10) is located above the outer ring (61).

4. A spray arm according to any one of claims 1-3, characterized in that: The second enclosure (8) is provided with a number of upward-facing elastic second hooks (11), which are fastened to the top of the inner ring (62).

5. A spray arm according to claim 4, characterized in that: The second enclosure (8) has a second protrusion (12) on its outer wall, which is located below the inner ring (62).

6. A spray arm according to claim 1, characterized in that: The water inlet (3) is located in the middle of the main spray arm (1), and auxiliary spray arms (2) are provided on both ends of the main spray arm (1).

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

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