Cantilever and base bolt anchoring type comb plate retractor

Abstract

The invention discloses a cantilever and base bolt anchoring type comb plate retractor. The cantilever and base bolt anchoring type comb plate retractor comprises a movable tooth plate and a fixed tooth plate, an anti-falling steel plate is welded on the bottom surface of a comb tooth section of the movable tooth plate, and a backing plate is welded on the bottom surface of the rear end of the fixed tooth plate. The cantilever and base bolt anchoring type comb plate retractor is characterized in that an anti-bending steel plate is arranged on the rear end bottom surface of the movable tooth plate and the fixed tooth plate, and slide carriers are arranged on the anti-bending steel plate of the fixed tooth plate; comb teeth of the fixed tooth plate and the movable tooth plate are crossly arranged flatly on the anti-falling steel plate, the rear ends of the movable tooth plate and the fixed tooth plate are fixedly connected with two anchoring bases by bolts, and the anti-falling steel plate is arranged on the slide carriers and slidably connected with a slide steel plate. Compared with the prior art, the cantilever and base bolt anchoring type comb plate retractor has the advantages that assembly and checking can be completed within factories, on-site workload is reduced, mounting quality is improved, service life is prolonged, and on-site mounting, maintenance and replacement speed is accelerated.

Description

technical field [0001] The invention relates to a bridge expansion joint device, in particular to a cantilever base screw anchor type comb tooth plate expansion device. Background technique [0002] The comb-tooth plate telescopic devices on viaduct bridges and highways can be divided into simply supported and cantilever comb-tooth-shaped telescopic devices according to the mechanical form. Anchor points. At present, the domestically produced "SGF" cantilevered comb telescopic device is a cantilever welded anchor structure with combs riding on the seam. The comb-tooth plate telescopic device is a cantilever bolt anchor structure with combs riding on the seam. Although the comb-tooth plate expansion device imported from abroad is better than the domestic comb-tooth plate expansion device in terms of working force effect, service life and installation speed, the price of the imported device is 2.5 times that of the domestic device, and the dustproof performance Extremely ba...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to design a cantilever base screw-anchor type comb-tooth plate expansion device for the deficiencies of the prior art. The support structure of the screw-anchor type base is used to make the assembly and verification of the on-site installation components and the comb-tooth plate in the factory. The on-site workload is greatly reduced, the installation quality and service life are improved, and the speed of on-site installation, maintenance and replacement is accelerated. Difficult questions

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