A lifting device for full-precast box culvert electric hoisting

By designing a lifting device with multi-point clamping and uniform winding, the problems of insufficient clamping points and inconvenient cable winding in the existing technology are solved, thereby improving the stability and safety of electric hoisting of fully prefabricated box culverts.

CN224716234UActive Publication Date: 2026-09-04CCCC FOURTH HARBOR ENG CO LTD +1
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Patent Information

Application Number
CN202521751994.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-09-04
Estimated Expiration
2035-08-18

AI Technical Summary

Technical Problem

The existing electric hoisting tools for fully prefabricated box culverts have a limited number of clamping points, resulting in insufficient clamping stability and inconvenient cable winding, which increases the difficulty of operation and safety hazards.

Method used

Design a lifting device that includes a winding section and a clamping section. Utilize an electric rotating column and a reciprocating electric telescopic column in conjunction with a pressure sensor to achieve multi-point clamping and uniform winding. A U-shaped clamping frame and threaded rod are used to achieve multi-point clamping and improve stability.

Benefits of technology

It achieves multi-point clamping, which improves the stability of hoisting and the uniform winding of steel cables, and reduces the difficulty of operation and safety risks.

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Abstract

The utility model relates to a hoist technical field, and disclose a hoist for full prefabricated box culvert electric hoisting, including: fixed base, set up the coiling position of fixed base bottom, set up the clamping position inside coiling position. Through in use, drive electric rotary column rotation to all turn out with connecting iron cable, because the multiple setting of coiling position, it is convenient to carry out multiple support point clamping to work piece, contrarily no longer use, drive electric rotary column rotation, coiling to connecting iron cable, and drive reciprocating electric telescopic column, make reciprocating electric telescopic column telescopic end's sliding frame along the track of guide frame sliding, when sliding frame touches one side pressure sensor, thereby control sliding frame changes sliding direction, to this reach the purpose of control sliding frame reciprocating sliding, thereby reach the purpose that prevents connecting iron cable winding to connecting iron cable even coiling.
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