CN112356803A

CN112356803A - Rear wiper motor with output water pipe

Info

Publication number: CN112356803A
Application number: CN202011294168.XA
Authority: CN
Inventors: 李万军; 包邢亮
Original assignee: Anhui Shenghuabo Auto Electric Co ltd
Current assignee: Anhui Shenghuabo Auto Electric Co ltd
Priority date: 2020-11-18
Filing date: 2020-11-18
Publication date: 2021-02-12

Abstract

The invention discloses a rear wiper motor with an output water pipe, which comprises a rear wiper motor, a reduction box and a water spraying assembly, wherein the reduction box and the water spraying assembly are assembled together with the rear wiper motor; the water spraying device is characterized in that the output shaft is provided with an inner hole, the metal pipe penetrates through the inner hole of the output shaft, and the elbow component is directly clamped on the reduction gearbox and inserted into the inner hole of the output shaft. Compared with the prior art, the assembly structure between the rear wiper motor and the output water pipe cancels the original clamping part for clamping the elbow component and the reduction gearbox, reduces the number of parts, reduces the assembly process by one step, and saves the cost. Meanwhile, the problems that the original clamping structure is not clamped in place, is difficult to check and is easy to cause failure are solved.

Description

Rear wiper motor with output water pipe

Technical Field

The invention relates to the technical field of water spraying windscreen wipers, in particular to a rear windscreen wiper motor with an output water pipe.

Background

At present, in order to save the installation space, the elbow components in the output water pipes of the water spraying wiper are all installed on the speed reducing box component through a clamping part, so that the parts of the water spraying wiper are increased, the assembly process is complex, and the cost is high. In addition, the situation that the clamping is not in place can exist, and if the clamping is not found, the water spraying wiper can be caused to fail in the using process.

Disclosure of Invention

The invention aims to solve the technical problems of more parts, high cost and complex assembly process of the existing water spraying windscreen wiper, in particular to a rear windscreen wiper motor with an output water pipe.

The technical problem to be solved by the invention can be realized by the following technical scheme:

a rear wiper motor with an output water pipe comprises a rear wiper motor, a reduction box and a water spray assembly, wherein the reduction box and the water spray assembly are assembled together with the rear wiper motor; the water spraying device is characterized in that the output shaft is provided with an inner hole, the metal pipe penetrates through the inner hole of the output shaft, and the elbow component is directly clamped on the reduction gearbox and inserted into the inner hole of the output shaft.

In a preferred embodiment of the invention, an inner hole is arranged on the reduction gearbox, and the outer diameter of one end of the output shaft, which is adjacent to the elbow component, is inserted into the inner hole and is in clearance fit with the inner diameter of the inner hole; the orifice position of hole is provided with spacing joint boss be provided with spacing joint recess on the elbow subassembly, spacing joint boss card is gone into in the spacing joint recess, in order to restrict the elbow subassembly axial drops.

In a preferred embodiment of the invention, the elbow assembly is provided with an inserting end, the inserting end is inserted on the metal pipe and is inserted into the inner hole of the output shaft, the outer diameter of the inserting end and the inner diameter of the inner hole of the output shaft are in clearance fit with each other by 0.05-0.2mm, and the outer diameter of the output shaft and the inner diameter of the inner hole of the reduction box are in clearance fit with each other by 0-0.07mm, so that the radial movement of the output shaft is limited.

In a preferred embodiment of the invention, a notch is arranged on the circumferential direction of the elbow component, a protrusion is arranged on the reduction gearbox, and the protrusion is embedded into the notch to limit the elbow component in the circumferential direction.

Due to the adoption of the technical scheme, compared with the prior art, the assembly structure between the rear wiper motor and the output water pipe cancels the clamping part which is used for clamping the elbow component and the reduction box, so that the number of parts is reduced, the assembly process is reduced by one step, and the cost is saved. Meanwhile, the problems that the original clamping structure is not clamped in place, is difficult to check and is easy to cause failure are solved.

Drawings

Fig. 1 is an external view of a rear wiper motor having a water outlet pipe according to the present invention.

Fig. 2 is a bottom view of fig. 1.

Fig. 3 is a sectional view B-B of fig. 2.

Fig. 4 is an enlarged view at O in fig. 3.

FIG. 5 is a schematic structural view of the reduction box of the present invention.

Fig. 6 is a left side view of fig. 5.

Fig. 7 is a rear view of fig. 5.

Fig. 8 is a cross-sectional view E-E of fig. 5.

Figure 9 is a schematic structural view of the elbow assembly of the present invention.

Fig. 10 is a sectional view a-a of fig. 9.

Detailed Description

The invention is further described below in conjunction with the appended drawings and detailed description.

Referring to the drawings, there is shown a rear wiper motor with an output water pipe, comprising a rear wiper motor 10, a reduction box 20 assembled with the rear wiper motor 10 and a water spray assembly; the reduction gearbox 20 has an output shaft 21.

The water spray assembly has a metal tube 31 and an elbow assembly 32 in communication with the metal tube 31.

The invention is characterized in that:

the output shaft 21 is provided with an inner hole 21a, the metal pipe 31 penetrates through the inner hole 21a of the output shaft 21, and the elbow component 32 is directly clamped on the reduction gearbox 20 and inserted into the inner hole 21a of the output shaft 21.

The method comprises the following steps: an inner hole 22 is arranged on the reduction gearbox 20, and the outer diameter of one end of the output shaft 21, which is close to the elbow component 32, is inserted into the inner hole 22 and is in clearance fit with the inner diameter d1 of the inner hole 22 by 0-0.07 mm; the position of the hole of the inner hole 22 is provided with a limiting clamping boss 23, the elbow component 32 is provided with a limiting clamping groove 32a, and the limiting clamping boss 23 is clamped into the limiting clamping groove 32a to limit the elbow component 32 from axially falling off. The depth L of the limiting clamping groove 32a is matched according to the actual size of the elbow component 32.

The elbow assembly 32 has a plug end 32b, the plug end 32b is plugged on the metal tube 31 and inserted into the inner hole 21a of the output shaft 31, and the outer diameter of the plug end 32b is in clearance fit with the inner diameter d2 of the inner hole 21a of the output shaft 21 by 0.05-0.2mm so as to limit the radial movement of the output shaft 21.

A notch 32c is arranged on the circumferential direction of the elbow component 32, a protrusion 24 is arranged on the reduction gearbox 20, and the protrusion 24 is embedded into the notch 32c to limit the circumferential direction of the elbow component 32.

Claims

1. A rear wiper motor with an output water pipe comprises a rear wiper motor, a reduction box and a water spray assembly, wherein the reduction box and the water spray assembly are assembled together with the rear wiper motor; the water spraying device is characterized in that the output shaft is provided with an inner hole, the metal pipe penetrates through the inner hole of the output shaft, and the elbow component is directly clamped on the reduction gearbox and inserted into the inner hole of the output shaft.

2. The rear wiper motor with the water outlet pipe as claimed in claim 1, wherein an inner hole is provided on the reduction box, and an outer diameter of an end of the output shaft adjacent to the elbow assembly is inserted into the inner hole and is in clearance fit with an inner diameter of the inner hole; the orifice position of hole is provided with spacing joint boss be provided with spacing joint recess on the elbow subassembly, spacing joint boss card is gone into in the spacing joint recess, in order to restrict the elbow subassembly axial drops.

3. The rear wiper motor with the water outlet pipe as claimed in claim 2, wherein the elbow assembly has a plug end, the plug end is plugged on the metal pipe and inserted into the inner hole of the output shaft, the outer diameter of the plug end and the inner diameter of the inner hole of the output shaft are in clearance fit of 0.05-0.2mm, and the outer diameter of the output shaft and the inner diameter of the inner hole of the reduction box are in clearance fit of 0-0.07mm, so as to limit the radial movement of the output shaft.

4. The rear wiper motor with the water outlet pipe as claimed in claim 3, wherein a notch is formed in the circumferential direction of the elbow assembly, and a protrusion is formed on the reduction gear box, and the protrusion is inserted into the notch to circumferentially limit the elbow assembly.