A tunnel mid-partition and segment connecting device

By designing a bidirectional adjusting screw and anti-loosening nut assembly, the problem of loosening of the connection between the tunnel partition wall and the tunnel segment under vibration environment was solved, achieving rapid and precise connection adjustment and long-term stability, thus improving construction efficiency and connection reliability.

CN224785719UActive Publication Date: 2026-09-22ZHEJIANG XIANGSHI TESTING TECHNOLOGY CO LTD
1 Cites 0 Cited by

Patent Information

Application Number
CN202522411099.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-13
Publication Date
2026-09-22
Estimated Expiration
2035-11-13

AI Technical Summary

Technical Problem

The existing connection method between the tunnel partition wall and the tunnel lining segment is prone to loosening under vibration, and the operation is time-consuming and labor-intensive, making it difficult to quickly and accurately adjust the connection spacing.

Method used

It adopts a bidirectional adjusting screw and a set of anti-loosening nuts. The bidirectional adjusting screw has a rotating part in the middle and the threads at both ends turn in opposite directions. Combined with the concave and convex structure of the anti-loosening nut set, it can achieve synchronous tightening or loosening of the connection, and the installation error is compensated by a spherical washer.

Benefits of technology

It simplifies the installation process, improves construction efficiency and connection reliability, enables precise adjustment of spacing, resists loosening forces caused by vibration, and ensures long-term connection stability and uniform stress distribution.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model relates to tunnel engineering technical field, and disclose a kind of tunnel mid-parting wall and segment connecting device, comprising: two-way adjusting screw rod, the middle part of two-way adjusting screw rod is equipped with the rotating part for tool clamping;First anchor, pre-buried in tunnel mid-parting wall, first anchor is equipped with the first internal thread matched with first threaded section;Second anchor, pre-buried in tunnel segment, second anchor is equipped with the second internal thread matched with second threaded section;Lock nut group, at least one group is set on two-way adjusting screw rod and is matched with first threaded section or second threaded section thread, for locking its position after two-way adjusting screw rod is tightened, by adopting two-way adjusting screw rod with rotating part in middle part, operator only needs to rotate screw rod in single position, can drive the thread section of opposite rotation direction at both ends simultaneously, realize the synchronous tightening or loosening of connection, this greatly simplifies installation process, improves construction efficiency and adjustability.
Need to check novelty before this filing date? Find Prior Art