Accurate positioning device for feet-lock anchor pipe or feet-lock anchor rod of high-speed rail tunnel

CN223075569UActive Publication Date: 2025-07-08WUHAN ENGINEERING CO LTD OF CHINA RAILWAY SEVENTH GROUP
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421666073.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-15
Publication Date
2025-07-08
Estimated Expiration
2034-07-15

AI Technical Summary

Technical Problem

In the construction of high-speed rail tunnels, the angle of the locking anchor pipe or locking anchor rod is subject to human eye observation, resulting in large errors, poor construction quality, low craft efficiency, high rework costs and impact on construction period.

Method used

An accurate positioning device including the first channel steel and the second channel steel is adopted, and is fixed to the steel arch frame through a connecting piece. The angle between the first channel steel and the horizontal plane is 40°, and the angle between the second channel steel and the horizontal plane is 20°. The precise positioning of the lock foot anchor pipe or the lock foot anchor rod is achieved in conjunction with the adjustment bolt group.

Benefits of technology

Effectively control the angle deviation of the lock foot anchor pipe or lock foot anchor rod, improve construction accuracy, reduce the difficulty of workers, and shorten the construction cycle.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223075569U_ABST
    Figure CN223075569U_ABST
Patent Text Reader

Abstract

The utility model discloses an accurate positioning device for a feet-lock anchor pipe or a feet-lock anchor rod of a high-speed rail tunnel. The accurate positioning device comprises first channel steel and second channel steel, the first channel steel and the second channel steel are oppositely and detachably fixed to the steel arch, a first steel pipe is obliquely fixed to the side face, away from the second channel steel, of the first channel steel, the included angle between the first steel pipe and the horizontal plane is 40 degrees, and a second steel pipe is fixed to the side face, away from the first channel steel, of the second channel steel. The included angle between the second steel pipe and the horizontal plane is 20 degrees. The angle deviation of the foot-lock anchor pipe / foot-lock anchor rod during construction is effectively prevented.
Need to check novelty before this filing date? Find Prior Art