Braking safety conformation for brace actuating mechanism and actuating mechanism

Abstract

The invention relates to a brake safety structure and a driving device for the brake safety structure of a support rod driving device. The invention comprises a brake disc and a brake reed neighboring the brake disc. One end of the brake disc is arranged in the middle part of a main body of the support rod driving device in virtue of a supporting by the brake reed and an adjusting to an inner rod. Wherein, the brake disc can lead a safety block to be freely wedged into or pulled out in virtue of an open-side end of the middle part of the main body of the support rod driving device through an assembling component and a safety block assembly. And the safety block is arranged thorough the assembling component in virtue of an assembling hole at the other end of the brake disc. The invention belongs to a support tool used for construction, in particular to the support rod provided with a flexible inner pipe and a flexible outer pipe. The plan of the invention relates to driving device which can drive a rod body of the support rod to extend, and in particular to a driving device provided with a brake safety structure which can limit a free movement of the flexible inner pipe. Once the structure is arranged on the support rod of a step driving structure the operator just needs to lightly kick a power part of the safety block, and then a tongue stage of the safety block smoothly turnsinto the open-side end of the middle part of the main body of the driving device to withstand the brake disc so as to guarantee construction safety.

Description

technical field [0001] The invention belongs to support tools for construction, especially a support rod with a telescopic inner tube and an outer tube. This case relates to a drive structure that can drive the rod body of the support rod to elongate, especially a brake safety that limits the free displacement of the telescopic inner tube. Constructed drives. Background technique [0002] Known technology, discloses a kind of supporting device as Chinese patent 00265973.5, is used for the operations such as painting. It includes a shoe platform, a floor platform, a bracket and a leg bracket. The bracket is provided with a support and a central rod, and elastic elements are respectively sleeved between the support and another support on the central rod. The leg bracket is provided with a fixing seat. It is pivotally connected with the bracket and connected with the shoe platform by a pivot cover. One end of the shoe platform is provided with a leg rest, and a calf cover is p...

AI Technical Summary

Problems solved by technology

[0004] After the support rod in the prior art is driven to elongate, most of the inner and outer tubes are locked by a locking device, so that both ends of the support rod are under the condition of force, and the retractable inner and outer tubes remain locked and do not return. However, when the force on both ends of the support rod is large, the locking device is bound to be threatened and easily damaged, thus bringing hidden dangers to safety.

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