CN207535868U - A kind of vehicle window wiper drive mechanism - Google Patents

Abstract

The utility model discloses a transmission structure of a car window wiper. There is a cam in the frame, a first telescopic rod and a second telescopic rod are arranged on the longer side of the frame, and a fixed seat is arranged on the shorter side of the frame. A first rocking handle and a second rocking handle are provided, and one end of the first rocking handle and the second rocking handle is movably connected to the movable shaft. A scraping strip is respectively arranged on the first rocking handle and the second rocking handle, and the first rocking handle The other end of the handle is hingedly provided with a first linkage rod, the first linkage rod is hinged at the end of the first telescopic rod, the other end of the second crank handle is hinged with a second linkage rod, and the second linkage rod is hinged at the end of the second telescopic rod. end of the rod. Compared with the prior art, in the transmission structure of the window wiper of the utility model, the rotation of the cam drives the rectangular frame body to reciprocate in two opposite directions, driving the first linkage rod and the second linkage rod to push or pull Back and forth to the first crank handle or the second crank handle, so as to realize the back and forth wiping of the scraper on the window, the structure is ingenious, the installation is convenient, and the maintenance is easy.

Description

A transmission structure of a windshield wiper

technical field

The utility model relates to a transmission structure of a car window wiper, which belongs to the technical field of motor vehicle spare parts.

Background technique

The wiper refers to the piece structure installed in front of the windshield. The traditional structure is composed of a motor, a reducer, a four-bar linkage, a wiper arm spindle, and a wiper blade assembly. The main function is to remove obstacles on the windshield. Rain, snow and dust in the line of sight, etc., especially when encountering bad weather, or when the car is found to be polluted during driving, which affects the driver's line of sight, for example, in rainy days, when raindrops fall on the window glass, the front of the car The line of sight of the car is quickly blocked, and the vehicles, pedestrians and scenery become blurred. At this time, it is necessary to turn on the wiper to clean the dirt on the window. The wiper blade of the existing design of the wiper rotates around a certain point at the bottom of the window, and the cleaning area is arc-shaped, while most car windows are trapezoidal, so there are still dead spots that have not been cleaned. This design may affect The driving is safe, and the traditional driving method is cumbersome, and it is not easy to repair after a failure.

For example, a wiper with the application number of 201310463873.1, including a wiper and a detection module, wherein the wiper rotates around a fixed point on the car window, and the length of the wiper changes according to its rotation angle, so that the wiper can be rotated at any The corner positions all cover the windows of the car; the detection module is electrically connected to the wiper to detect the corner of the wiper and determine the position of the wiper. When the number of wipers is one, the wiper The fixed point is set at the midpoint of the window of the car and rotates around the fixed point; when the number of wipers is two, the fixed points of the first wiper and the second wiper are set on the car window at intervals and fixed around them respectively Click to rotate.

Another example is a new type of wiper with application number 201210521170.5, which includes a scraper strip and a rubber sleeve, and also includes a track. There are two tracks, which are respectively arranged at the upper and lower ends of the window, and each track is provided with a micro-moving motor. , the rubber sleeve is connected to the micro-moving motor, and the scraping strip is arranged between the two rubber sleeves. By setting the track so that the scraper can move left and right on the car window, all the rainwater on the car window can be scraped off. A micro-moving motor is provided to facilitate the movement of the wiper strip on the track, and the drain port enables the rainwater accumulated in the track to be discharged smoothly to avoid damage to the wiper caused by rainwater accumulation.

The driving power of the above two kinds of wipers is insufficient, and the scraping strip is easy to break.

Utility model content

The technical problem to be solved by the utility model is to provide a transmission structure of a windshield wiper for the above-mentioned deficiencies in the prior art.

In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:

A transmission structure for a vehicle window wiper, comprising a rectangular frame, with a cam inside the frame, the length of the shorter side of the frame is less than twice the length of the cam, and a first telescopic rod provided on a longer side of the frame , the other longer side is provided with a second telescopic rod, one shorter side of the frame is provided with a fixed seat, the fixed seat is provided with a first rocker and a second rocker, and the fixed seat has a movable shaft , one end of the first rocking handle is movably connected to the movable shaft, and one end of the second rocking handle is also movably connected to the movable shaft, and one end of the first rocking handle and the second rocking handle are respectively arranged for wiping the glass. The other end of the first rocking handle is hingedly provided with a first linkage rod, the other end of the first linkage rod is hinged to the end of the first telescopic rod, and the other end of the second rocking handle A second linkage rod is hingedly arranged, and the other end of the second linkage rod is hinged to the end of the second telescopic rod.

As a further preferred solution, a limit strip fixed on the vehicle body is provided on the outer sides of the two shorter sides of the frame body, and the frame body is located between the two limit strips.

As a further preferred solution, the angle between the first telescopic rod or the second telescopic rod and the longer side of the frame is less than 90°, and the first telescopic rod and the second telescopic rod are arranged obliquely toward the fixing seat.

As a further preferred solution, the length of the cam is adjustable.

As a further preferred solution, the angle at which the scraping strip is installed on the first handle or the second handle is adjustable.

Compared with the prior art, in the transmission structure of a window wiper of the present invention, the rotation of the cam drives the rectangular frame body to reciprocate in two opposite directions, driving the first linkage rod and the second linkage rod to push or pull Return the first crank or the second crank, so as to realize the wiping back and forth of the scraper on the window. The structure is ingenious, easy to install and easy to maintain.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Among them, 1-frame body, 2-cam, 31-first telescopic rod, 32-second telescopic rod, 4-fixing seat, 5-first rocker, 6-second rocker, 7-scraper, 8 -the first linkage rod, 9-the second linkage rod, 10-limiting bar.

Detailed ways

The preferred technical solutions of the utility model will be described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, a kind of vehicle window wiper transmission structure of the present utility model comprises a rectangular frame body 1, and a cam 2 is arranged inside the frame body 1, and the length of the shorter side of the frame body 1 is less than twice the cam 2 lengths, the length of the shorter side of the frame body 1 is greater than the length of a cam 2;

One longer side of the frame body 1 is provided with a first telescopic rod 31, and the other longer side is provided with a second telescopic rod 32, and a shorter side of the frame body 1 is provided with a fixed seat 4, and the fixed seat 4 is fixedly installed On the vehicle body, a first rocking handle 5 and a second rocking handle 6 are arranged on the fixed seat 4, and a movable shaft is provided on the fixed seat 4, and one end of the first rocking handle 5 is movably connected on the movable shaft, so that One end of the second rocking handle 6 is also movably connected on the movable shaft, and a scraper 7 for wiping rainwater on the glass window is respectively arranged on the first rocking handle 5 and the second rocking handle 6, and the first rocking handle The other end of the 5 is hingedly provided with a first linkage rod 8, the other end of the first linkage rod 8 is hinged at the end of the first telescopic rod 31, and the other end of the second rocking handle 6 is hingedly provided with a second linkage rod 9 , the other end of the second linkage rod 9 is hinged on the end of the second telescopic rod 32 .

The outside of the two shorter sides of the frame body 1 is respectively provided with a limit strip 10 fixed on the vehicle body, the frame body 1 is located between the two limit strips 10, and the frame body 1 can only move along its shorter side. The movement occurs in the direction of both ends of the edge.

The included angle between the first telescopic rod 31 or the second telescopic rod 32 and the longer side of the frame body 1 is less than 90°, and the first telescopic rod 31 or the second telescopic rod 32 is inclined to the direction of the fixing seat 4, so that the Strip 7 has a larger wiping area.

The length of the cam 2 is adjustable, and a longer cam 2 can improve the movable stroke of the frame body 1 .

The angle at which the scraping strips 7 are installed on the first crank handle 5 or the second crank handle 6 is adjustable, and readjusting as required can make the installation angles of the two scraping strips 7 different.

In the present utility model, the first linkage rod 8 and the first rocking handle 5 are connected as a whole, and the second linkage rod 9 and the second rocking handle 6 are connected as a whole to be interlaced with each other, so that no collision will occur during relative movement.

The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the present utility model in detail. For the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model shall be included in the protection scope of the utility model.

Claims (5)

1. A window wiper transmission structure, characterized in that: it includes a rectangular frame (1), a cam (2) is provided inside the frame (1), and the length of the shorter side of the frame (1) is less than Twice the length of the cam (2), one longer side of the frame (1) is provided with a first telescopic rod (31), and the other longer side is provided with a second telescopic rod (32), the frame (1) ) is provided with a fixed base (4) on one of the shorter sides, the fixed base (4) is provided with a first rocker (5) and a second rocker (6), and the fixed base (4) has a movable shaft, One end of the first rocker (5) is movably connected to the movable shaft, and one end of the second rocker (6) is also movably connected to the movable shaft. The first rocker (5) and the second rocker ( 6) is respectively provided with a scraper (7) for wiping the rainwater on the glass window, the other end of the first rocker (5) is hingedly provided with a first linkage rod (8), and the first linkage rod (8 ) is hinged at the end of the first telescopic rod (31), the other end of the second rocker (6) is hingedly provided with a second linkage rod (9), and the other end of the second linkage rod (9) Hinged at the end of the second telescopic rod (32). 2. A vehicle window wiper transmission structure according to claim 1, characterized in that: the two shorter sides of the frame (1) are respectively provided with a limit strip (10) fixed on the vehicle body ), the frame body (1) is located between the two limit bars (10). 3. A vehicle window wiper transmission structure according to claim 2, characterized in that: the distance between the first telescopic rod (31) or the second telescopic rod (32) and the longer side of the frame (1) The included angle is less than 90°, and the first telescopic rod (31) or the second telescopic rod (32) is arranged obliquely toward the fixing seat (4). 4. A vehicle window wiper transmission structure according to claim 1, characterized in that: the length of the cam (2) is adjustable. 5. A vehicle window wiper transmission structure according to claim 1, characterized in that: the wiper strip (7) is installed on the first handle (5) or the second handle (6) at an orientation angle of regulated.