Single-arm windshield wiper with circular ring shaped brush surface

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

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 installed on the outdoor protective cover is generally divided into two types: one is double arms, and its principle is the principle of a four-bar linkage mechanism, and the shape of the wiped area is a partial ring (see attached figure 1 ). The wiping area of ​​the dual-arm structure wiper is relatively large, but the interference of the two wiper arms on...

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 fan-shaped (see attached figure 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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