Lining type hoisting device for thin-wall square pipe

The design of the thin-walled square tube liner hoisting device solves the problems of damage, stability and safety during the hoisting process of thin-walled square tubes, realizes multi-specification adaptation and efficient construction, and meets the high precision requirements of building engineering.

CN224477851UActive Publication Date: 2026-07-10CHENGDU AEROSPACE ZHONGXING MASCH CO LTD
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Patent Information

Application Number
CN202620819946.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2026-06-04
Publication Date
2026-07-10
Estimated Expiration
2036-06-04

AI Technical Summary

Technical Problem

Existing thin-walled square tube hoisting technology suffers from problems such as easy damage to the tubes, poor stability, insufficient versatility, high cost, and prominent safety hazards, failing to meet the high precision and high safety requirements of construction projects.

Method used

A thin-walled square tube inner-lined hoisting device is adopted, which uses a support plate to connect the bracket and the inner wall of the square tube. The mechanical structure of hinge support and central shaft achieves stepless expansion. Combined with the double anti-loosening structure of trapezoidal thread self-locking and welded components, it ensures uniform load distribution and safe hoisting.

Benefits of technology

It enables non-destructive, stable, and safe hoisting of thin-walled square tubes, adapts to various specifications, reduces procurement and maintenance costs, improves construction efficiency and precision, and eliminates safety hazards.

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Abstract

The utility model relates to the technical field of hoisting devices, and provides a thin-wall square pipe lining type hoisting device which comprises a middle connecting support, a center shaft and a sliding support, a welding assembly is fixed in the middle of the top of the sliding support, and the middle connecting support is arranged under the sliding support. The supporting plate connecting supports are tightly attached to the inner side wall of the square pipe to support the square pipe, traditional local high-pressure concentrated stress is dispersed into overall uniform stress of the pipe wall according to the mechanical uniform load distribution principle, and local stress concentration points are eliminated; the isolation base plate installed on the side wall of the supporting plate connecting support is in direct contact with the inner wall of the square pipe, pipe scratching, indentation and sunken deformation caused by rigid contact can be effectively avoided, the outer wall coating and the structural precision of the pipe are comprehensively protected, and the problem that the thin-wall pipe is prone to damage during hoisting is solved to a certain degree.
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