CN100586766C

CN100586766C - Single-arm windshield wiper with circular ring shaped brush surface

Info

Publication number: CN100586766C
Application number: CN200710150855A
Authority: CN
Inventors: 陆作政
Original assignee: Tianjin Yaan Technology Electronic Co Ltd
Current assignee: Tianjin Yaan Technology Co Ltd
Priority date: 2007-12-10
Filing date: 2007-12-10
Publication date: 2010-02-03
Anticipated expiration: 2027-12-10
Also published as: CN101181892A

Abstract

The invention belongs to a single-arm rain brush with an annular brush surface suitable for the application of large protection cover, consisting of a rain brush arm, a brush head and a motor. A motoroutput shaft is sleeved with a fixed gear in a sliding way; the shaft cap at the end of the motor output shaft is pivotally provided with a wheel frame which is longitudinally provided with an intermediate wheel and a driven gear engaged with the fixed gear; the driven gear is coaxially and fixedly provided with a driving belt pulley; the driving belt pulley transmits a driven belt pulley arranged on the upper part of a rain brush arm; the lower part of the rain brush arm is arranged on a wheel frame. The invention has the advantages of reasonable design and simple structure, ensuring the great brushing area of the rain strip by adopting the combination type of the gear engagement and synchronous belt transmission, not disturbing the operation of the scene when the rain brush is rotated,thus obtaining the advantages of the dual arms and the single arms and abandoning the shortages of the dual arms and single arms and ensuring good monitoring effect.

Description

Brush finish is the single armed rain brush of annular arrangement

Technical field

The invention belongs to the monitoring field, especially a kind of single armed rain brush that is suitable for brush finish that large-scale protective cover uses as annular arrangement.

Background technology

The Cloud Terrace is a kind of monitoring tools that generally uses in the monitoring fields such as urban public security, transport administration, can play good supervisory function bit in order to guarantee it, especially on rainy day, need clear up the rainwater of protective cover form.Because The Cloud Terrace is installed in higher place usually, therefore use rain brush that it is cleared up with regard to needs.At present, the structure that generally is installed in rain brush on the outdoor protective cover is divided into two kinds more: a kind of for both arms, its principle is the four-bar linkage principle, and its brush finish is long-pending is shaped as partial circle annular (seeing accompanying drawing 1).The rain brush institute brush finish of arm structure is long-pending bigger, but two Wiper arms are bigger to the interference of camera lens, and mechanism's integral body takes up space also bigger, and consumed power is also bigger; Another kind is a single armed, and its brush finish is long-pending is shaped as fan-shaped (seeing accompanying drawing 2).Its advantage is that Wiper arm is less to the camera lens interference, monitoring visual field is broad, but this single armed rain brush exists institute's brush finish to amass less shortcoming.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art, it is the single armed rain brush of annular arrangement that a kind of brush finish that gets both present single armed rain brush and both arms rain brush advantage is provided.This single armed rain brush volume is little, simple in structure, disturb little and brushable zone is big to camera lens.

The present invention solves its technical matters and is achieved through the following technical solutions:

A kind of brush finish is the single armed rain brush of annular arrangement, constitute by Wiper arm, brush and motor, it is characterized in that: slip cap is equipped with a fixed gear wheel on the motor output shaft, the axle cap hinge of motor output shaft end is adorned a wheel carrier, idle wheel and the driven gear that is meshed with fixed gear wheel vertically is installed on this wheel carrier, the coaxial driving pulley that installs of this driven gear, this driving pulley is installed in the driven pulley on Wiper arm top by synchronous strap drive one, and the bottom of Wiper arm is installed on the wheel carrier.

And the brush of described Wiper arm inboard is installed on the driven pulley.

And the axle cap of described motor output shaft end is equipped with a torsion spring by bearing pin hinge dress wheel carrier on this bearing pin.

And a movable outer cover is installed in the described Wiper arm outside.

And the described axle cap outside installs one can be with the stationary housings of axle cap rotation.

Advantage of the present invention and beneficial effect are:

1. the mechanism of single armed structure of the present invention is to utilize gear transmission to come break-in, with synchronous pulley the brush synchronous backward is rotated, and brush will keep with Wiper arm oppositely directed identical rotational angle being arranged like this.When brush initial angle when being vertical, Wiper arm can rotate arbitrarily, and brush remains vertically.The brush finish of brush institute is long-pending big like this, and its region shape of brushing is the partial circle annular.

2. this single armed rain brush is little because of the volume of Wiper arm, can not produce camera lens during use and disturb, and therefore can guarantee that The Cloud Terrace has broad monitoring visual field, makes correct response fast promptly, thereby plays the effective monitoring effect.

Among the present invention the motion of rain brush be by adopt gear mesh and synchronously the mode that combines of strap drive realize that this type of drive is simple, steadily and be easy to realize.

4. the present invention is reasonable in design, simple in structure, the mode that adopts gear mesh and synchronous strap drive to combine, guaranteed that zone that rain brush is brushed is bigger, and rain brush does not disturb camera lens work when rotating, thereby the advantage of got both both arms and single armed, and abandoned the two shortcoming, guaranteed good monitoring effect.

Description of drawings

Fig. 1 is the front view of prior art both arms rain brush;

Fig. 2 is the front view of prior art single armed rain brush;

Fig. 3 is a structural front view of the present invention;

Fig. 4 is the left view (semi-sictional view) of Fig. 3.

The specific embodiment

The invention will be further described below by specific embodiment, and following examples are descriptive, is not determinate, can not limit protection scope of the present invention with this.

A kind of brush finish is the single armed rain brush of annular arrangement, is made of Wiper arm 10, brush 12, base plate 3 and the motor 4 that is packed on the base plate.Innovative point of the present invention is: fixed gear wheel 5 of slip suit on the motor output shaft, this fixed gear wheel is packed on the base plate, and does not rotate with the output shaft of motor.The axle cap 18 that the motor output shaft end is installed is adorned a wheel carrier 15 by bearing pin 16 hinges, idle wheel 6 and the driven gear 8 that is meshed with fixed gear wheel vertically is installed on this wheel carrier, this idle wheel and driven gear can freely rotate, the transmission that is meshed of fixed gear wheel, idle wheel and driven gear.The coaxial driving pulley 7 that installs of driven gear, this driving pulley is by being with 9 to connect a driven pulley 11 synchronously, and this driven pulley is installed on the axle on Wiper arm top.The brush of Wiper arm inboard is installed on the driven pulley, and brush can rotate in the vertical plane radially of belt wheel, but can not rotate in the plane of belt wheel.The bottom of Wiper arm is installed on the wheel carrier, and Wiper arm and wheel carrier rotate synchronously.

In order to guarantee that Wiper arm and motor shaft have certain moment of torsion (promptly keeping the sight glass 2 of brush and protective cover that certain pressure is arranged), are equipped with a torsion spring 14 on the bearing pin on the axle cap.

A movable outer cover 13 is installed in the Wiper arm outside, and this activity outer cover can move with Wiper arm.The axle cap outside installs one can be with the stationary housings 17 of axle cap rotation.These two outer covers shield to other parts.

The part of this single armed rain brush is that plastics or corrosion-resistant steel make, and it can be used out of doors, can corrosion, prolonged its service life.

Operating principle of the present invention is as follows:

Motor is fixed on the adapter plate, and motor output shaft drives axle cap and rotates, and now sets motor output shaft left-hand revolution (referring to Fig. 3).Axle cap utilizes bearing pin to drive wheel carrier and Wiper arm together rotates counterclockwise; Idle wheel rotates around fixed gear wheel simultaneously, and idle wheel itself also rotates counterclockwise with the axle of oneself, and the drive driven gear clockwise rotates; The driving pulley fixing with driven gear also clockwise rotates thereupon, drives driven pulley by synchronous band and clockwise rotates.Because gear transmission and synchronous strap drive are all fricton-tight, so the angle that angle that motor shaft rotates and brush rotate is identical; Because of there being idle wheel to swing to, then make motor shaft opposite again, so brush just can keep and initial angle is constant with the direction that brush rotates.If we begin brush is vertically placed, brush can keep vertical state constant always in the overall process that motor shaft rotates.Therefore the brush finish of brush institute is long-pending big, and its shape of brushing zone 1 is the partial circle annular as shown in Figure 3.

It can be that axle is raised together with the bearing pin that the Wiper arm band brush, has torsion spring to keep the engagement of idle wheel and fixed gear wheel; Also keep the suitable pressure of brush and glass, rainwater can be fallen by clean brush.Wiper arm can be raised, and also is convenient to the maintenance of rain brush.

Claims

1. single armed rain brush that brush finish is an annular arrangement, comprise Wiper arm, brush and motor, it is characterized in that: slip cap is equipped with a fixed gear wheel on the motor output shaft, the axle cap of motor output shaft end is adorned a wheel carrier by bearing pin hinge, one torsion spring is installed on this bearing pin, the idle wheel that is meshed with fixed gear wheel vertically is installed on this wheel carrier, and idle wheel and driven gear engagement, the coaxial driving pulley that installs of this driven gear, this driving pulley is installed in the driven pulley on Wiper arm top by synchronous strap drive drive one, the bottom of Wiper arm is installed on the wheel carrier, and the brush of Wiper arm inboard is installed on the driven pulley.

2. the single armed rain brush that brush finish according to claim 1 is an annular arrangement is characterized in that: a movable outer cover is installed in the described Wiper arm outside.

3. the single armed rain brush that brush finish according to claim 1 is an annular arrangement is characterized in that: the described axle cap outside installs one can be with the stationary housings of axle cap rotation.