Steel net rack jacking overturn-preventing limiting structure

By employing a combination design of pre-embedded screws, pre-tightening nuts, and connecting seats during the steel space frame lifting process, along with pre-embedded steel plates and anti-pull-out protrusions, the problem of loosening in traditional limiting structures was solved, thereby improving the stability and safety of the steel space frame lifting process.

CN224200287UActive Publication Date: 2026-05-05ANHUI XINBANG STEEL STRUCTURE ENG CO LTD
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Patent Information

Application Number
CN202521119816.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-03
Publication Date
2026-05-05
Estimated Expiration
2035-06-03

AI Technical Summary

Technical Problem

Traditional steel space frame lifting and limiting structures are prone to loosening and displacement when faced with dynamic loads, vibrations, and prolonged continuous stress during the lifting process, failing to form stable limiting constraints and leading to the risk of steel space frame overturning.

Method used

The system employs a load-bearing base unit, a lifting execution unit, a composite support unit, and a dynamic locking mechanism. Through the combined design of pre-embedded screws, pre-tightening nuts, connecting seats, and limiting grooves, along with pre-embedded steel plates and anti-pull-out protrusions, the connection stability between the support seat and the pre-embedded screws is enhanced. Furthermore, the system utilizes a guide linkage assembly and a pressure sensor array to achieve vertical lifting and force balance of the hydraulic jack.

Benefits of technology

It effectively addresses dynamic loads and vibrations during the jacking process, improves the stable connection between the support base and the pre-embedded bolts, reduces the risk of steel grid overturning, and ensures the stability and safety of the jacking process.

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Abstract

The utility model relates to the technical field of steel net rack jacking, in particular to a steel net rack jacking overturn-preventing limiting structure which comprises a bearing base body unit, a jacking execution unit, a composite supporting unit and a dynamic locking mechanism. The top end of the embedded screw protrudes out of the surface of the concrete base, and the jacking execution unit comprises a hydraulic jack and a jacking disc arranged at the output end of the hydraulic jack. When the pre-tightening nut is screwed on the pre-embedded screw rod, the prismatic surface opposite to the pre-tightening nut is parallel to the inner side wall of the limiting groove, and the pre-tightening nut is limited by the limiting groove by turning over the connecting seat, so that dynamic load and vibration in the jacking process can be dealt with, and stable connection between the supporting seat and the pre-embedded screw rod is promoted; the defect that a traditional nut fastening mode is prone to loosening when subjected to complex stress is overcome, and meanwhile the risk that the steel net frame overturns is reduced.
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