A structurally improved manual adjustment arm capable of automatic positioning and locking

Abstract

A structurally improved manual adjustment arm capable of automatically locating deadlock comprises a housing, a worm gear, a worm and a location locking device, wherein an upper mounting hole and a lower mounting hole are correspondingly formed in the housing; the location locking device comprises an upper adjustment shaft, a location sleeve, a location piece, a return spring and a lower adjustment shaft; the lower adjustment shaft penetrates into an inner hole of the worm and the lower mounting hole; an open slot is formed at the upper end head of the lower adjustment shaft; the location sleeve is fixed on a side wall of the housing by the location piece; location grooves are uniformly formed in an inside wall at the lower end part of the location sleeve; the return spring is arranged between the upper adjustment shaft and the lower adjustment shaft; a connecting part is arranged at the lower end part of the upper adjustment shaft; the middle upper part of the connecting part of the upper adjustment shaft is clamped into the location groove by the action of elasticity of the return spring; and the middle lower part of the connecting part of the upper adjustment shaft is clamped at the upper part of the open slot by the action of the elasticity of the return spring. The location sleeve of the arm is fixed on the housing and is not directly contacted with the upper adjustment shaft, so that the damage of the location piece due to an axial acting force during user adjustment is avoided, and a brake system is securer and safer.

Description

technical field [0001] The invention relates to a manual adjusting arm for adjusting the brake clearance of an automobile braking system, in particular to a manual adjusting arm with an improved structure that can be automatically positioned and locked. Background technique [0002] With the improvement of people's quality of life and the needs of traffic development, cars have become more and more popular, and cars will inevitably vibrate and bump when driving, which often causes the adjustment arm to loosen, thereby affecting the braking effect of the car. Adjustment arm to adjust. [0003] At present, some anti-loosening and locking adjusting arms have appeared on the market in various styles, and the purpose is how to prevent the adjusted adjusting arm from loosening again. An invention patent with the application number 201310102474.2 submitted by the applicant on March 28, 2013 discloses a new type of manual adjustment arm that can be automatically positioned and lock...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a structurally improved manual adjustment arm capable of automatic positioning and locking, in order to solve the above-mentioned deficiencies in the existing manual adjustment arm

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