Comb tooth type telescopic device

Abstract

The invention belongs to the field of comb plates, and particularly relates to a comb tooth type telescopic device. The device comprises a joint-crossing middle toothed plate, a left toothed plate anda right toothed plate, the joint-crossing middle toothed plate is arranged on the expansion joint; two opposite sides of the joint-crossing middle toothed plate are respectively connected with a lefttoothed plate and a right toothed plate; the left toothed plate is arranged on concrete in the left side of the expansion joint; the right toothed plate is arranged on concrete in the right side of the expansion joint; the device further comprises a plurality of displacement control assemblies, each displacement control mechanism comprises guide rails, a connecting rod assembly and an elastic element, the guide rails are arranged at the two sides of the expansion joint, the guide rails at the two sides of the expansion joint are movably connected with the connecting rod assembly, the midpointof the connecting rod assembly is movably connected with the elastic element, and the elastic element is connected with the joint-crossing middle toothed plate. Through cooperation of the connectingrod assembly and the guide rails, it is guaranteed that the seam width formed by the two sides of the seam-crossing middle toothed plate and the left toothed plate and the seam width formed by the twosides of the seam-crossing middle toothed plate and the right toothed plate are uniform, and the driving comfort is improved.

Description

technical field [0001] The invention belongs to the field of comb-tooth plates, and in particular relates to a comb-tooth type telescopic device. Background technique [0002] Roads are the main artery of economic development. With the development of society and economy, the total mileage of highways in our country keeps breaking new records. In the process of road construction, bridge construction is often involved. At present, many bridge decks are formed by splicing and connecting plates in sections to speed up construction and improve the reliability of bridge structures. Expansion joints will be formed at the joints of adjacent bridge deck blocks, and a connection structure that can cooperate with expansion joints needs to be installed to eliminate road gaps and ensure driving safety. [0003] At present, the commonly used connection structure is the comb-tooth-type isolation plate expansion device, such as the Chinese patent application number: 201810214759.8, the app...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a comb-type telescopic device, aiming to solve the problem that the width of the gap formed by the tooth plate in the span and the side tooth plates at both ends is not uniform, which leads to the problem of unsteady driving

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