Telescopic dish-washing machine spraying arm and dish-washing machine

Abstract

The utility model relates to a telescopic dishwasher spraying arm which comprises a spraying arm seat, a main spraying arm and an auxiliary spraying arm, the main spraying arm is rotatably connected to the spraying arm seat, an inner water path of the auxiliary spraying arm is communicated with an inner water path of the main spraying arm, the auxiliary spraying arm can stretch out and draw back relative to the main spraying arm, a fixed gear is arranged on the spraying arm seat, and a transmission gear is arranged on the main spraying arm. The fixed gear is used for driving the transmission gear to rotate, a connecting column is arranged on the transmission gear, a driving rod for driving the auxiliary spraying arm to stretch out and draw back is arranged on the main spraying arm, and a stroke groove arranged on the connecting column in a sleeving mode is formed in the driving rod. The telescopic spraying arm is provided with the telescopic auxiliary spraying arm, and when the main spraying arm rotates to spray tableware, the auxiliary spraying arm performs reciprocating telescopic action, so that the spraying range of the water spraying holes in the auxiliary spraying arm is continuously changed, more spraying angles and areas can be obtained, and the problem of spraying dead angles caused by the placement problem of the tableware is solved.

Description

Technical Field

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

[0002] A dishwasher is a device that automatically cleans bowls, chopsticks, plates, dishes, cutlery, and other tableware. However, in actual use, it has been found that users may change the placement of various tableware items, and different types of tableware have varying cleaning difficulties. Furthermore, issues such as blind spots in the spray system can lead to some tableware not being thoroughly cleaned. To address this problem, some dishwasher manufacturers extend the washing time, but this increases water consumption due to the longer washing time. Others have added spray arms to other parts of the washing chamber, but this is costly.

[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 telescopic dishwasher spray arm and dishwasher, which significantly helps to thoroughly clean tableware.

[0005] To achieve the above objectives, this utility model provides a telescopic dishwasher spray arm, which includes a spray arm base, a main spray arm, and a secondary spray arm. The main spray arm is rotatably connected to the spray arm base, and the internal water passage of the secondary spray arm is connected to the internal water passage of the main spray arm. The secondary spray arm can extend and retract relative to the main spray arm. The spray arm base is provided with a fixed gear, and the main spray arm is provided with a transmission gear. The gears directly / indirectly mesh with the transmission gear. The transmission gear is provided with a connecting post, and the main spray arm is provided with a drive rod that drives the secondary spray arm to extend and retract. The drive rod is provided with a stroke groove sleeved on the connecting post.

[0006] In one or more embodiments, the drive rod has a limiting groove, the main spray arm has a slide block connected to the limiting groove, and the limiting groove extends along the extension and retraction direction of the auxiliary spray arm.

[0007] In one or more embodiments, the main spray arm is provided with limiting portions on both sides of the drive rod.

[0008] In one or more embodiments, the drive rod is provided with a connection hole, and the auxiliary spray arm is provided with an anti-detachment part that snaps into the connection hole.

[0009] In one or more embodiments, the main spray arm is provided with an outwardly extending insertion pipe, and the auxiliary spray arm has an insertion cavity connected to the insertion pipe, the insertion pipe connecting the internal water passages of the main spray arm and the internal water passages of the auxiliary spray arm.

[0010] In one or more embodiments, the fixed gear is fixed to the spray arm mount by screws.

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

[0012] Compared with the prior art, the advantages of this utility model are: the telescopic spray arm has a telescopic secondary spray arm. While the main spray arm rotates to spray the tableware, the secondary spray arm performs reciprocating telescopic movements, so that the spray range of the water spray holes on the secondary spray arm changes continuously, thereby obtaining more spray angles and areas, and solving the problem of spray dead angles caused by tableware placement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the telescopic spray arm according to an embodiment of the present invention;

[0014] Figure 2 for Figure 1 A schematic diagram of the structure from another angle. Detailed Implementation

[0015] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0016] Please refer to Figure 1-2 This application provides a telescopic dishwasher spray arm, which includes a spray arm base 1, a main spray arm 2, and an auxiliary spray arm 3. The main spray arm 2 is rotatably connected to the spray arm base 1. The internal water passage of the auxiliary spray arm 3 is connected to the internal water passage of the main spray arm 2, and the auxiliary spray arm 3 can extend and retract relative to the main spray arm 2. The spray arm base 1 is provided with a fixed gear 4, and the main spray arm is provided with a transmission gear 5. The gear 4 and the transmission gear 5 are directly / indirectly meshed. The transmission gear 5 is provided with a connecting post 6. The main spray arm 2 is provided with a drive rod 7 that drives the auxiliary spray arm to extend and retract. The drive rod 7 is provided with a stroke groove 15 sleeved on the connecting post 6. When water enters the main spray arm, the water sprays out from the power hole of the main spray arm, generating a thrust that causes the main spray arm to rotate relative to the spray arm base. Since the fixed gear and the transmission gear are meshed, the transmission gear rotates and drives the connecting post to rotate, thereby driving the drive rod to move so that the auxiliary spray arm can extend and retract.

[0017] The drive rod 7 has a limiting groove 8, and the main spray arm 2 is provided with a slide block 9 connected to the limiting groove. The limiting groove 8 extends along the extension and retraction direction of the auxiliary spray arm 3. The cooperation between the slide block and the limiting groove can ensure that the sliding direction of the drive rod is always consistent, and ensure that the auxiliary spray arm can extend and retract.

[0018] The main spray arm 2 is provided with limiting parts 10 on both sides of the drive rod 7. The limiting parts, together with the limiting grooves, can further ensure that the sliding direction of the drive rod is always consistent.

[0019] The drive rod 7 is provided with a connection hole 12, and the auxiliary spray arm 3 is provided with an anti-detachment part 13 that snaps into the connection hole. The drive rod and the auxiliary spray arm are connected together by snapping, which has the advantages of easy installation and disassembly.

[0020] The main spray arm 2 is provided with an outwardly extending insertion pipe 14, and the auxiliary spray arm 3 has an insertion cavity that connects to the insertion pipe 14. The insertion pipe connects the internal water passage of the main spray arm 2 and the internal water passage of the auxiliary spray arm 3. The cooperation between the insertion pipe and the insertion cavity can also ensure that the extension and retraction direction of the auxiliary spray arm is consistent and the extension and retraction is smooth.

[0021] The fixed gear 4 is fixed to the spray arm seat 1 by screws so that it can be replaced when the fixed gear is severely worn.

[0022] This application also provides a dishwasher equipped with the telescopic dishwasher spray arm described above.

[0023] 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. All 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 telescopic dishwasher spray arm, characterized in that: It includes a spray arm base (1), a main spray arm (2) and a secondary spray arm (3). The main spray arm (2) is rotatably connected to the spray arm base (1). The internal water passage of the secondary spray arm (3) is connected to the internal water passage of the main spray arm (2), and the secondary spray arm (3) can extend and retract relative to the main spray arm (2). The spray arm base (1) is provided with a fixed gear (4), and the main spray arm is provided with a transmission gear (5). The fixed gear (4) and the transmission gear (5) mesh directly / indirectly. The transmission gear (5) is provided with a connecting column (6). The main spray arm (2) is provided with a drive rod (7) that drives the secondary spray arm to extend and retract. The drive rod (7) is provided with a stroke groove (15) sleeved on the connecting column (6).

2. The telescopic dishwasher spray arm according to claim 1, characterized in that: The drive rod (7) has a limiting groove (8), and the main spray arm (2) is provided with a slide block (9) connected to the limiting groove. The limiting groove (8) extends along the extension and retraction direction of the auxiliary spray arm (3).

3. A telescopic dishwasher spray arm according to claim 1 or 2, characterized in that: The main spray arm (2) is provided with limiting parts (10) on both sides of the drive rod (7).

4. The telescopic dishwasher spray arm according to claim 1, characterized in that: The drive rod (7) is provided with a connection hole (12), and the auxiliary spray arm (3) is provided with an anti-detachment part (13) that snaps into the connection hole.

5. A telescopic dishwasher spray arm according to claim 1, characterized in that: The main spray arm (2) is provided with an outwardly extending insertion pipe (14), and the auxiliary spray arm (3) has an insertion cavity connected to the insertion pipe (14). The insertion pipe connects the water passage inside the main spray arm (2) and the water passage inside the auxiliary spray arm (3).

6. The telescopic dishwasher spray arm according to claim 1, characterized in that: The fixed gear (4) is fixed to the spray arm seat (1) by screws.

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

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