A multi-stage telescopic force transfer key device

By designing a multi-stage telescopic force transmission key device, the problem of the need for customization of traditional force transmission key devices is solved, and mass production and flexible adaptation of force transmission keys are realized, ensuring the safety and construction efficiency of the foundation pit retaining structure.

CN116695728BActive Publication Date: 2026-07-10POWERCHINA RAILWAY CONSTR +5
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
POWERCHINA RAILWAY CONSTR
Filing Date
2023-06-07
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Traditional force transmission key devices require special customization based on the spacing between prefabricated components and the foundation pit retaining structure at different locations, resulting in poor flexibility and affecting the construction speed and efficiency of prefabricated stations.

Method used

The design includes a multi-stage telescopic force transmission key device, comprising an insert and an abutment. The insert has a first recess, and the abutment can move within the recess. The insert is connected to a prefabricated component, and the depth of the abutment can be adjusted to accommodate different spacings, enabling mass production and flexible configuration.

Benefits of technology

This enables mass production of force transmission key devices and flexible adaptation to different working conditions, ensuring the safety and stability of the foundation pit retaining structure, reducing construction costs, and improving construction efficiency.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116695728B_ABST
    Figure CN116695728B_ABST
Patent Text Reader

Abstract

The application discloses a multi-stage telescopic force transmission key device, which is characterized by a split structure of an embedding part and an abutting part. The embedding part comprises a block body and a first recess provided in the block body. The first recess is recessed inwardly from the end face of the block body along a first direction, wherein the first direction is the axial direction of the block body. The abutting part is at least partially accommodated in the first recess and is movable in the first recess along the first direction, so that the end face of the abutting part abuts on the wall surface of the foundation pit support structure. Thus, the force transmission key does not need to be specially customized according to the distance between the prefabricated component and the foundation pit support structure. The embedding part and the abutting part can be flexibly configured according to actual requirements, the force transmission key can be mass-produced, and the distance between the prefabricated component and the foundation pit support structure under different working conditions can be adapted, thereby being convenient and fast.
Need to check novelty before this filing date? Find Prior Art