Single-arm windshield wiper with circular ring shaped section

Abstract

The invention belongs to a single-arm wiper with a ring-shaped brush surface suitable for large-scale protective covers. It is composed of a wiper arm, a brush head and a motor. A fixed gear is slidingly fitted on the output shaft of the motor. A wheel frame is installed on the wheel frame. An intermediate wheel and a driven gear meshed with the fixed gear are installed longitudinally on the wheel frame. The driven gear is coaxially fixed with a driving pulley, and the driving pulley is driven by a synchronous belt and installed on the wiper arm. The upper driven pulley, the lower part of the wiper arm is installed on the wheel frame. The invention has a reasonable design and a simple structure, and adopts the combination of gear meshing and synchronous belt transmission, which ensures that the area wiped by the wiper is relatively large, and does not interfere with the work of the lens when the wiper rotates, thereby obtaining the advantages of both arms and single arm. Abandon the shortcomings of the two, to ensure a good monitoring effect.

Description

technical field [0001] The invention belongs to the field of monitoring, in particular to a single-arm wiper with a ring-shaped brush surface suitable for a large protective cover. Background technique [0002] The PTZ is a monitoring tool commonly used in monitoring fields such as urban public security and traffic management. In order to ensure that it can play a good monitoring role, especially in rainy days, it is necessary to clean the rainwater from the window of the protective cover. Since the gimbal is usually installed in a higher place, it needs to be cleaned with a wiper. At present, the structure of the wiper generally installed on the outdoor protective cover is divided into two types: a kind of is two arms, and its principle is the principle of four-bar linkage mechanism, and the shape of its brushed area is a local circular ring (seeing accompanying drawing 1). The wiping area of ​​the dual-arm structure wiper is relatively large, but the interference of the t...

AI Technical Summary

Problems solved by technology

The wiping area of ​​the dual-arm structure wiper is relatively large, but the interference of the two wiper arms on the lens is large, the overall mechanism takes up a large space, and the power consumption is also large; the other is a single-arm structure, and the shape of the wiping area It is fan-shaped (see attached drawing 2)

Its advantage is that the wiper arm has less interference with the lens and has a wide monitoring field of view, but the single-arm wiper has the disadvantage of a small wiped area

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