Seamless telescopic device

Through the simply supported beam and base plate assembly structure, combined with telescopic parts and guide shafts, the problems of unreasonable structure, short life and noise of existing telescopic devices are solved, and the safety, durability and environmental protection performance are improved.

CN120649370APending Publication Date: 2025-09-16ZHONGSHENG ROAD & BRIDGE TECH GRP CO LTD
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Patent Information

Application Number
CN202511103159.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-07
Publication Date
2025-09-16

AI Technical Summary

Technical Problem

The existing telescopic device has unreasonable structural design, short lifespan, lack of safety and durability, poor environmental performance, cannot effectively withstand the complex loads at the bridge beam end, and generates noise.

Method used

It adopts a simply supported beam-plate and base plate assembly structure. The two ends of the simply supported beam-plate are located on the inner side of the base plate assembly and are interlocked with the base plate assembly. They are covered with elastic bodies. The telescopic parts and guide shafts provide movable guidance. The elastic bodies adapt to the deformation of the beam ends within the constrained space, and the guide shafts absorb the reaction force to prevent noise.

Benefits of technology

The safety and durability of the telescopic device are improved, the load action time and contact area are reduced, the load-bearing performance is ensured, the noise is reduced, and environmental protection requirements are met.

✦ Generated by Eureka AI based on patent content.
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Abstract

The seamless telescopic device comprises a telescopic device body and an elastic body, and the telescopic device body comprises a simply supported beam plate, a bottom plate assembly and a plurality of telescopic pieces; the bottom plate assemblies are symmetrically arranged at intervals of a certain distance S. The two ends of each simply supported beam plate are located on the inner sides of the ends, close to the distance S, of the bottom plate assemblies correspondingly, buckled with the bottom plate assemblies, cover the distance S and are used for adapting to deformation of a main body structure, and the telescopic pieces are symmetrically arranged between the simply supported beam plates and the end vertical faces of the bottom plate assemblies. The elastic body covers the upper portion of the telescopic device body and completely wraps the telescopic pieces, when the lower portion S of the simply supported beam plate changes, the telescopic pieces integrally and synchronously stretch out and draw back to deform, the telescopic pieces are symmetrically distributed in two sections of telescopic space between the simply supported beam plate and the bottom plate assembly, the load acting time is greatly shortened, and the load contact area is greatly reduced. And therefore, the safety and durability of the telescopic device are ensured, and the elastic body can effectively bear vertical loads in the constraint space.
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