CN216184997U

CN216184997U - Drive mechanism for a windscreen wiper device

Info

Publication number: CN216184997U
Application number: CN202122324616.2U
Authority: CN
Inventors: 黎元杰; 吴初; 肖翰霖; 蒋文明; 周盼; 吴国红
Original assignee: Shanghai Jihan Electronic Technology Co ltd
Current assignee: Shanghai Jihan Electronic Technology Co ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-04-05
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a driving mechanism for a water scraping device, which comprises a motor output shaft, wherein a linear end shaft is arranged at the end head of the motor output shaft, a step is connected between the linear end shaft and the motor output shaft, limiting columns are arranged on two sides of the step, a crank body is arranged outside the linear end shaft through a through hole sleeve, limiting holes are arranged on two sides of the crank body, the limiting holes are sleeved on the limiting columns, annular grooves are arranged on the upper side and the lower side of the crank body, annular rivets are pressed in the annular grooves, and the longer ends of the annular rivets are riveted at the direct connection part of the linear end shaft and the crank body. This a actuating mechanism for wiping water device, structural design is reasonable, and processing simple manufacture not only the effectual requirement that reduces processing technology, the moment of torsion that can also be better increase mutual transmission between crank and the motor output shaft improves articulate stability, and then prolongs articulate life.

Description

Drive mechanism for a windscreen wiper device

Technical Field

The utility model relates to the technical field of wiper of a wiper, in particular to a driving mechanism for a wiper device.

Background

Wiper water is the indispensable wiping arrangement that car windshield used, and the crank of traditional wiper mostly adopts the mode of knurling to fasten the crank on motor output shaft with the interlock, and the mode of this knurling interlock for the interlock degree of depth is not deep enough, is difficult to transmit great moment of torsion, leads to the crank fastening to become flexible easily on motor output shaft, and the processing requirement of knurling technology size is comparatively complicated, leads to the work piece processing cost to rise. Therefore, we propose a drive mechanism for a wiper device.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a drive mechanism for a wiper device.

In order to achieve the purpose, the utility model provides the following technical scheme:

the design is used for wiping wiper's actuating mechanism, including the actuating mechanism who is used for wiping wiper, including motor output shaft, motor output shaft end is equipped with sharp rachis, be connected with the step between sharp rachis and the motor output shaft, sharp rachis outside is equipped with the crank body through the through-hole cover, the through-hole department of crank body is equipped with the annular, the ring that impresses in the annular is riveted, and the ring rivets the junction between the annular of longer end riveting sharp rachis and crank body.

Preferably, the outer diameter of the linear end shaft is slightly smaller than the inner diameter of the through hole.

Preferably, the outer diameter of the step is larger than the inner diameter of the through hole.

Preferably, two sides of the crank body are provided with limiting holes.

Preferably, the two sides of the step are provided with limiting columns, and the limiting columns are inserted into the limiting holes of the crank body.

Compared with the prior art, the utility model has the beneficial effects that: this a actuating mechanism for wiping water device, through setting up sharp end axle, a through-hole, the annular, the ring is riveted, can establish the crank cover above the sharp end axle through the through-hole, the annular is fixed a position the crank in the annular through the ring riveting, reach the effect of closely fixing the crank on motor output shaft, through setting up spacing post, can penetrate the spacing downthehole portion of crank body through spacing post, reach from the rotatory effect of horizontal restriction crank, make this an actuating mechanism for wiping water device, structural design is reasonable, processing simple manufacture, not only the effectual requirement that has reduced processing technology, the moment of torsion that can also be better increases mutual transmission between crank and the motor output shaft, improve articulate stability, and then prolong articulate life.

Drawings

Fig. 1 is a perspective view of a drive mechanism for a wiper device according to the utility model;

fig. 2 is a perspective view of the output shaft arrangement of the motor of the drive mechanism for a wiper device according to the utility model;

fig. 3 is a side view of the drive mechanism for a wiper device according to the utility model;

fig. 4 is a side view of the crank body structure of the drive mechanism for a wiper device according to the present invention.

In the figure: the crank comprises a motor output shaft 1, a linear end shaft 2, a step 3, a limiting column 4, a crank body 5, a through hole 6, a limiting hole 7, a ring groove 8 and a ring rivet 9.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a driving mechanism for a water scraping device comprises a motor output shaft 1, a linear end shaft 2 is arranged at the end of the motor output shaft 1, a step 3 is connected between the linear end shaft 2 and the motor output shaft 1, the step 3, the linear end shaft 2 and the motor output shaft 1 are arranged in an integrated structure, the step 3 and the linear end shaft 2 are milled by a lathe, the outer diameter of the step 3 is kept larger than the outer diameter of the linear end shaft 2, a crank body 5 can be sleeved through the linear end shaft 2, the axial movement of the crank body 5 can be limited through the step 3, the crank body 5 is clamped on the step 3, a crank body 5 is sleeved outside the linear end shaft 2 through a through hole 6, a ring groove 8 is arranged at the through hole 6 of the crank body 5, a ring rivet 9 is pressed into the ring groove 8, the longer end of the ring rivet 9 is riveted into the joint between the linear end shaft 2 and the ring groove 8 of the crank body 5, the ring rivet 9 fastens the crank body 5 on the linear end shaft 2, the rotation stability of the crank body 5 can be effectively increased by the ring rivet 9.

Specifically, utilize through-hole 6 to establish 5 covers of crank body on sharp end axle 2, crank body 5 card is established on step 3 to guarantee that spacing post 4 penetrates inside spacing hole 7, insert sharp end axle 2 and crank body 5's through-hole 6 again with ring riveting 9, make ring riveting 9 impress inside annular 8, and then fasten crank body 5 on motor output shaft 1.

Operating principle of the drive mechanism for a wiper device, during use: utilize through-hole 6 to overlap the 5 covers of crank body on sharp end axle 2, crank body 5 card is established on step 3 to guarantee that spacing post 4 penetrates inside spacing hole 7, insert the through-hole 6 of sharp end axle 2 and crank body 5 with the ring rivet 9 again, make the ring rivet 9 impress inside annular 8, and then fasten crank body 5 on motor output shaft 1. The driving mechanism for the water scraping device is reasonable in structural design and simple in processing and manufacturing, the requirement for processing technology is effectively reduced, the torque transmitted between the crank and the motor output shaft can be better increased, the stability of the crank is improved, and the service life of the crank is further prolonged.

Further, the outer diameter of the straight end shaft 2 is slightly smaller than the inner diameter of the through hole 6, so that the straight end shaft 2 can penetrate into the through hole 6, and the crank body 5 is conveniently clamped on the straight end shaft 2.

Further, the outer diameter of the step 3 is larger than the inner diameter of the through hole 6, so that the through hole 6 cannot penetrate through the step 3, and the crank body 5 can be axially limited through the step 3.

Further, two sides of the crank body 5 are provided with limiting holes 7, and the inner diameter of each limiting hole 7 is consistent with the outer diameter of each limiting column 4, so that the limiting columns 4 can be inserted into the limiting holes 7.

Furthermore, the two sides of the step 3 are provided with the limiting columns 4, the limiting columns 4 are inserted into the limiting holes 7 of the crank body 5, the crank body 5 is fixed on the step 3 through the limiting holes 7, the excessive fixation only by means of a straight line shape can be effectively assisted, the displacement in the rotating direction is limited, and the stability in the rotating direction is further improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Drive mechanism for a wiper device, comprising a motor output shaft (1), characterized in that: motor output shaft (1) end is equipped with sharp end axle (2), be connected with step (3) between sharp end axle (2) and motor output shaft (1), sharp end axle (2) outside is equipped with crank body (5) through-hole (6) cover, through-hole (6) department of crank body (5) is equipped with annular (8), press in annular (8) and rivet (9), and rivet the junction between annular (8) of sharp end axle (2) and crank body (5) into in the ring longer end of (9).

2. A drive mechanism for a wiper device as defined in claim 1, wherein: the outer diameter of the linear end shaft (2) is slightly smaller than the inner diameter of the through hole (6).

3. A drive mechanism for a wiper device as defined in claim 1, wherein: the outer diameter of the step (3) is larger than the inner diameter of the through hole (6).

4. A drive mechanism for a wiper device as defined in claim 1, wherein: and limiting holes (7) are formed in two sides of the crank body (5).

5. A drive mechanism for a wiper device as defined in claim 1, wherein: and the two sides of the step (3) are provided with the limiting columns (4), and the limiting columns (4) are inserted into the limiting holes (7) of the crank body (5).