An anchor bolt support device for deep foundation pit engineering

By using a cylindrical structure and a nut-driven mechanism, operation is simplified and production costs are reduced. This solves the problem of complex transmission structures and improves the stability of anchor bolts within the soil layer.

CN224281264UActive Publication Date: 2026-05-26CCCC THIRD HIGHWAY ENG CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CCCC THIRD HIGHWAY ENG CO LTD
Filing Date
2025-07-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing anchor bolt support devices have complex transmission structures, high production costs, and insufficient stability.

Method used

The structure adopts a cylindrical body. After the anchor head is inserted into the foundation pit, the rotation of the nut drives the tie rod to move, so that the triangular plate and wedge block cooperate to push the insertion rod into the soil layer, thereby improving stability.

Benefits of technology

It simplifies the operation process, reduces production costs, and significantly improves the stability of the anchor bolts in the soil.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224281264U_ABST
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Abstract

This utility model discloses an anchor bolt support device for deep foundation pit engineering, including a cylinder with an open top. An anchor head is provided at the bottom of the cylinder. Multiple sets of circumferentially distributed through holes are opened on the outer wall of the cylinder from top to bottom. Inserted rods are slidably installed in each of the through holes. A wedge block is fixedly connected to one end of the inserted rod inside the cylinder. A cover plate is fixedly installed at the top of the cylinder, and a tie rod is slidably installed at the center of the cover plate. This utility model has a simple structure, is easy to manufacture and assemble. In use, after inserting the cylinder into the foundation pit soil layer through the anchor head, rotating the nut on the tie rod moves the tie rod outward from the cylinder, causing each triangular plate to move towards the cover plate. The triangular plates and wedge blocks then push the inserted rod outward from the cylinder, allowing it to pass through the cylinder and insert into the soil layer, effectively improving the stability of the cylinder within the soil layer. The operation is simple and convenient.
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