Bridge construction cement prefabricated plate installation device

CN224494899UActive Publication Date: 2026-07-14华翔德建建设集团有限公司

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner: 华翔德建建设集团有限公司
Filing Date: 2025-08-11
Publication Date: 2026-07-14

AI Technical Summary

Technical Problem

Existing trolley-type equipment lacks an effective dynamic constraint mechanism during the transfer of precast concrete slabs, which makes the slabs prone to swaying, slippage, and impact during movement, affecting installation positioning accuracy and safety.

Method used

The system employs a combination of upper and lower crossbars, forming a multi-degree-of-freedom hinge mechanism through the synergistic action of hydraulic cylinders and hydraulic rods. This, combined with partition plates, provides physical limits to ensure the stability of the hoisting system. Furthermore, the system utilizes an asymmetric hoisting method to control the tilting posture of the precast slabs.

Benefits of technology

It achieves stable attitude control of precast slabs throughout the hoisting, transportation and installation process, eliminates swaying and slippage, and ensures the positioning accuracy and safety of the final installation.

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Figure CN224494899U_ABST

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Abstract

This utility model relates to the field of bridge construction technology, specifically to a precast concrete slab installation device for bridge construction. It includes an upper crossbar, a lower crossbar, a lifting rod, and an extension rod. The upper crossbar passes through one end of the lifting rod, and upper clamping plates are symmetrically arranged at the bottom of the lifting rod. A hydraulic rod is hinged to the upper clamping plates via a pin shaft, and the end of the hydraulic rod is connected to the output end of a hydraulic cylinder. The bottom end of the hydraulic cylinder is hinged to the lower clamping plate via a pin shaft. A first partition plate is provided on the outer side of the upper crossbar, and a second partition plate is provided on the outer side of the lower crossbar, passing through one end of the extension rod. A drive assembly is connected to the ends of the lifting rod and the extension rod. During operation, a steel cable passes through the double crossbars and is limited and anti-slip by the partition plates. The hydraulic cylinder pushes the hydraulic rod to raise the lifting rod, while the extension rod remains in a low position, resulting in a controlled tilt posture for the precast slab, with the top higher than the bottom. During transport, the steel cables of the double crossbars work together to maintain the stability of the precast slab's tilt. During installation, the hydraulic rod retracts, and the precast slab is accurately positioned along a preset tilt trajectory. This device solves the problems of swaying, impact, and inaccurate positioning during the transport of precast slabs, ensuring construction safety and accuracy.

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