A passive packer with a protective structure

By assembling the guide protective steel sheet and auxiliary support mechanism in the passive packer, the problems of vulnerability and seal failure during the plug-in process are solved, and higher stability and strength are achieved.

CN222730547UActive Publication Date: 2025-04-08LIAONING FUTAI CHEM MASCH CO LTD
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Patent Information

Application Number
CN202421513758.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-08
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

Packers made of existing rubber materials are prone to contact with the shear bonds of the steel piles in the steel piles during the insertion of the sleeve into the steel piles, resulting in the risk of surface damage and seal failure.

Method used

A passive packer with a protective structure is designed to prevent direct contact between the packer and the shear key of the steel pile by assembling guide protective steel sheets at the bottom of the packer body, and combining fixed components and auxiliary support mechanisms, and to enhance the overall strength.

Benefits of technology

Effectively reduces surface damage of the packer, reduces the risk of seal failure, and improves the overall strength and stability of the packer.

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Abstract

The utility model discloses a passive packer with a protective structure, including a packer body, a fixing assembly fixedly assembled between the packer body and the sleeve, a guide protection steel sheet fixedly assembled on the packer body through the fixing assembly, and an auxiliary support mechanism assembled in the packer body. By arranging the guide protection steel sheet, the surface of the packer body can be protected during the process of inserting the sleeve into the steel pile, avoiding the contact between the surface of the packer body and the steel pile shear key in the steel pile, effectively reducing the damage to the surface of the packer body during the pile insertion process, and reducing the risk of sealing failure of the packer body during the subsequent grouting process.
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