CN220639770U - Wiper arm - Google Patents

Abstract

The utility model belongs to the technical field of windscreen wipers, and particularly provides a wiper arm, which aims to solve the problems. The utility model provides a wiper arm, includes the wiper arm body and doctor-bar, the tip slip of wiper arm body is inserted and is equipped with the extension arm, the tip fixed mounting of extension arm has the connector, doctor-bar and connector block, the inside of wiper arm body is provided with the motor, the output shaft port of motor is connected with the screw rod, the surface and the extension arm threaded connection of screw rod.

Description

Wiper arm

Technical Field

The utility model belongs to the technical field of windscreen wipers, and particularly relates to a wiper arm.

Background

The windshield wiper is an important accessory installed on the windshield, and has the function of sweeping rain, snow and dust on the windshield glass, which obstruct the view. Therefore, the wiper has an important effect on driving safety, the wiper is composed of the wiper arm and the wiper blade, the wiper blade is made of rubber generally, the wiper arm and a driving assembly of an automobile are connected with each other, the wiper arm is driven to reciprocate by the driving assembly, and accordingly the wiper blade is driven to clean rainwater or dust on front glass of the automobile.

The length of the wiper arm of the traditional windscreen wiper is generally fixed, and when the wiper blade is driven by the wiper arm to clean, the wiper arm and the wiper blade are fixed in length, so that the cleaning dead angle is generally formed in the cleaning process, the sight of an automobile in the driving process is influenced, the potential safety hazard is enhanced, and the actual use is not facilitated.

Disclosure of Invention

The utility model aims to solve the problems and provide the wiper arm, wherein the position of the wiper blade is required to be changed in the running process of an automobile, so that when the automobile glass is cleaned, a motor can be directly utilized to drive a screw rod to rotate, the screw rod drives the extension arm to extend or shorten, the position of the wiper blade is changed, the cleaning position of the glass in the rotating process of the wiper blade is changed, the cleaning dead angle on the automobile glass is reduced, and the potential safety hazard is reduced.

The utility model realizes the aim through the following technical scheme that the wiper arm comprises a wiper arm body and a wiper blade, wherein an extension arm is inserted at the end part of the wiper arm body in a sliding manner, a connector is fixedly arranged at the end part of the extension arm, the wiper blade is clamped with the connector, a motor is arranged in the wiper arm body, a screw is connected to an output shaft port of the motor, and the surface of the screw is in threaded connection with the extension arm.

The scraping arm comprises a scraping arm body, wherein the surface of the scraping arm body is provided with a containing groove, a motor and a screw rod are both located inside the containing groove, a protruding rod is fixedly installed on the inner wall of the containing groove, a cover plate is arranged at the top of the containing groove, the surface of the cover plate is provided with a bolt, the surface of the protruding rod is provided with a screw hole matched with the size of the bolt, and the cover plate is fixedly connected with the protruding rod through the bolt and the screw hole.

The bottom of apron fixed mounting has the briquetting, the briquetting is the rubber material.

The inside rotation of holding tank is connected with the pivot, the tip and the pivot fixed connection of screw rod, the output shaft port fixed mounting of motor has the limiting gear, the spacing tooth's socket with limiting gear size looks adaptation has been seted up to the one end that the screw rod was kept away from to the pivot.

The inside of holding tank is provided with the clamp plate, the lateral wall fixed mounting of clamp plate has the spring, the one end and the holding tank fixed connection of clamp plate are kept away from to the spring.

The inside of spring is provided with flexible cover, and the both ends of flexible cover are respectively with clamp plate and holding tank fixed connection.

The beneficial effects of the utility model are as follows: install the extension arm in the tip of scraping the arm body, make and carry out threaded connection between extension arm and the screw rod, when the car is going the in-process and need change the doctor-bar position to when clearing up car glass, can directly utilize the motor to drive the screw rod and rotate, screw rod drive extension arm lengthens or shortens, thereby changes the position of doctor-bar, and then changes the rotatory in-process of doctor-bar and to the clearance position of glass, reduces the clearance dead angle on the car glass, reduces the potential safety hazard.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a cross-sectional view of a wiper arm body according to the present utility model;

fig. 3 is a schematic view of a limiting gear structure of the present utility model.

In the figure: 1. a wiper arm body; 2. an extension arm; 3. a connector; 4. a wiper blade; 5. a cover plate; 6. briquetting; 7. a screw; 8. a rotating shaft; 9. limiting the gear; 10. a motor; 11. a pressing plate; 12. a spring; 13. a receiving groove; 14. a protruding rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, a wiper arm comprises a wiper arm body 1 and a wiper blade 4, wherein an extension arm 2 is slidably inserted into the end part of the wiper arm body 1, a connector 3 is fixedly arranged at the end part of the extension arm 2, the wiper blade 4 is clamped with the connector 3, a motor 10 is arranged in the wiper arm body 1, a screw 7 is connected to an output shaft port of the motor 10, the surface of the screw 7 is in threaded connection with the extension arm 2, the extension arm 2 is arranged at the end part of the wiper arm body 1, the extension arm 2 and the screw 7 are in threaded connection, when a car is in running, the position of the wiper blade 4 needs to be changed, and therefore when the car glass is cleaned, the motor 10 can be directly used for driving the screw 7 to rotate, the screw 7 drives the extension arm 2 to be prolonged or shortened, so that the position of the wiper blade 4 is changed, the cleaning position of the glass in the rotating process of the wiper blade 4 is changed, the cleaning dead angle on the car glass is reduced, and the potential safety hazard is reduced.

As a technical optimization scheme of the utility model, the surface of the scraping arm body 1 is provided with the accommodating groove 13, the motor 10 and the screw rod 7 are both positioned in the accommodating groove 13, the inner wall of the accommodating groove 13 is fixedly provided with the convex rod 14, the top of the accommodating groove 13 is provided with the cover plate 5, the surface of the cover plate 5 is provided with the bolt, the surface of the convex rod 14 is provided with the screw hole matched with the size of the bolt, the cover plate 5 is fixedly connected with the convex rod 14 through the bolt and the screw hole, the motor 10 and the screw rod 7 are arranged in the accommodating groove 13 of the scraping arm body 1, the top of the accommodating groove 13 is sealed by the cover plate 5, and the motor 10 can be conveniently maintained and replaced by disassembling the bolt.

As a technical optimization scheme of the utility model, the bottom of the cover plate 5 is fixedly provided with the pressing block 6, the pressing block 6 is made of rubber, and the motor 10 is directly placed in the accommodating groove 13, so that the pressing block 6 made of rubber is arranged at the bottom of the cover plate 5, and the motor 10 is conveniently fixed by using the pressing block 6 after the cover plate 5 is fixed.

As a technical optimization scheme of the utility model, a rotating shaft 8 is rotationally connected in a containing groove 13, the end part of a screw rod 7 is fixedly connected with the rotating shaft 8, a limiting gear 9 is fixedly arranged at the port of an output shaft of a motor 10, a limiting tooth groove matched with the size of the limiting gear 9 is formed at one end of the rotating shaft 8 far away from the screw rod 7, the screw rod 7 is fixedly connected with the end part of the rotating shaft 8 in the containing groove 13, an output shaft of the motor 10 is clamped with the limiting tooth groove at the end part of the rotating shaft 8 through the limiting gear 9, so that the motor 10 drives the limiting gear 9 to rotate, and the limiting gear 9 drives the rotating shaft 8 to rotate, thereby realizing the purpose of driving the screw rod 7 to rotate.

As a technical optimization scheme of the utility model, the inside of the accommodating groove 13 is provided with the pressing plate 11, the side wall of the pressing plate 11 is fixedly provided with the spring 12, one end of the spring 12 away from the pressing plate 11 is fixedly connected with the accommodating groove 13, the inside of the accommodating groove 13 is provided with the pressing plate 11, after the motor 10 is placed in the accommodating groove 13, the pressing plate 11 receives the elastic force of the spring 12, so that the pressing plate 11 receives the extrusion force towards the direction of the screw 7, the clamping between the limiting gear 9 and the rotating shaft 8 is more stable, and the disassembly convenience of the motor 10 is not affected.

As a technical optimization scheme of the utility model, the inside of the spring 12 is provided with the telescopic sleeve, two ends of the telescopic sleeve are respectively fixedly connected with the pressing plate 11 and the accommodating groove 13, and the telescopic sleeve arranged in the spring 12 enables the pressing plate 11 to only move along the telescopic direction of the telescopic sleeve, so that the stability of the pressing plate 11 after being extruded by the motor 10 is enhanced.

When the utility model is used, the extension arm 2 is arranged at the end part of the scraping arm body 1, so that the extension arm 2 and the screw 7 are in threaded connection, when an automobile needs to change the position of the scraping blade 4 in the running process of the automobile, the screw 7 can be directly driven by the motor 10 to rotate so as to drive the screw 7 to extend or shorten the extension arm 2, thereby changing the position of the scraping blade 4, further changing the cleaning position of the glass in the rotating process of the scraping blade 4, reducing the cleaning dead angle on the automobile glass, reducing the potential safety hazard, arranging the motor 10 and the screw 7 in the accommodating groove 13 of the scraping arm body 1, sealing the top of the accommodating groove 13 by the cover plate 5, disassembling by disassembling the bolt, further facilitating the maintenance and replacement of the motor 10, directly arranging the motor 10 in the accommodating groove 13, arranging the pressing block 6 made of rubber at the bottom of the cover plate 5, thereby conveniently fixing the motor 10 by the pressing block 6 after the cover plate 5 is fixed, the screw rod 7 is fixedly connected with the end part of the rotating shaft 8 in the accommodating groove 13, the output shaft of the motor 10 is clamped with the limiting tooth socket at the end part of the rotating shaft 8 through the limiting gear 9, the motor 10 drives the limiting gear 9 to rotate, the limiting gear 9 drives the rotating shaft 8 to rotate, the purpose of driving the screw rod 7 to rotate is realized, the pressing plate 11 is arranged in the accommodating groove 13, after the motor 10 is placed in the accommodating groove 13, the pressing plate 11 is subjected to the elasticity of the spring 12, so that the pressing plate 11 is subjected to the extrusion force towards the direction of the screw rod 7, the clamping between the limiting gear 9 and the rotating shaft 8 is more stable, the convenience of dismounting the motor 10 is not influenced, the telescopic sleeve arranged in the spring 12 enables the pressing plate 11 to move only along the telescopic direction of the telescopic sleeve, the stability of the pressing plate 11 after being pressed by the motor 10 is enhanced.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims (6)

1. Wiper arm, comprising a wiper arm body (1), and a wiper blade (4), characterized in that: the end part of the scraping arm body (1) is slidably inserted with the extension arm (2), the end part of the extension arm (2) is fixedly provided with the connector (3), the scraping blade (4) is clamped with the connector (3), a motor (10) is arranged in the scraping arm body (1), an output shaft port of the motor (10) is connected with a screw rod (7), and the surface of the screw rod (7) is in threaded connection with the extension arm (2).

2. A wiper arm according to claim 1, wherein: the scraping arm comprises a scraping arm body (1), wherein a containing groove (13) is formed in the surface of the scraping arm body (1), a motor (10) and a screw (7) are both located inside the containing groove (13), a protruding rod (14) is fixedly arranged on the inner wall of the containing groove (13), a cover plate (5) is arranged at the top of the containing groove (13), a bolt is arranged on the surface of the cover plate (5), a screw hole matched with the size of the bolt is formed in the surface of the protruding rod (14), and the cover plate (5) is fixedly connected with the protruding rod (14) through the bolt and the screw hole.

3. A wiper arm according to claim 2, wherein: the bottom of the cover plate (5) is fixedly provided with a pressing block (6), and the pressing block (6) is made of rubber.

4. A wiper arm according to claim 2, wherein: the inside rotation of holding tank (13) is connected with pivot (8), the tip and the pivot (8) fixed connection of screw rod (7), the output shaft port fixed mounting of motor (10) has restriction gear (9), the spacing tooth's socket with restriction gear (9) size looks adaptation has been seted up to the one end that screw rod (7) was kept away from to pivot (8).

5. A wiper arm as defined in claim 4, wherein: the inside of holding tank (13) is provided with clamp plate (11), the lateral wall fixed mounting of clamp plate (11) has spring (12), the one end and holding tank (13) fixed connection that clamp plate (11) were kept away from to spring (12).

6. A wiper arm as defined in claim 5, wherein: the spring (12) is internally provided with a telescopic sleeve, and two ends of the telescopic sleeve are fixedly connected with the pressing plate (11) and the accommodating groove (13) respectively.