Auxiliary device for disconnecting and connecting high-pressure liquid inlet and return pipeline

By using disassembly clamps and chain hoists as auxiliary devices during the disassembly and reconnection of high-pressure inlet and outlet pipelines, the safety risks and low efficiency issues in the disassembly and reconnection process of high-pressure inlet and outlet pipelines have been resolved, achieving efficient and safe pipeline maintenance operations.

CN224196728UActive Publication Date: 2026-05-05SHANXI JINCHENG ANTHRACITE COAL MINING GRP CO LTD
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Patent Information

Application Number
CN202521088479.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-05-05
Estimated Expiration
2035-05-29

AI Technical Summary

Technical Problem

There are safety risks and low efficiency issues in the dismantling and reconnection of high-pressure inlet and outlet liquid pipelines in coal mines. In particular, the U-shaped pins pop out and emulsion splashes caused by the elastic contraction of the pipeline require multiple people to work together and consume a lot of time.

Method used

An auxiliary device, including a clamp and a chain hoist, is used. The chain hoist retracts to bring the two high-pressure inlet and outlet pipelines closer together, shortening the connection distance, facilitating the insertion and replacement of sealing rings, and reducing the risk of operation.

Benefits of technology

It improves the efficiency of disassembling and reconnecting high-pressure inlet and outlet pipelines, reduces safety risks and time costs, reduces manpower requirements and emulsion loss, and enhances operational safety and economic benefits.

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Abstract

The utility model relates to the technical field of disassembly and connection of high-pressure pipelines, in particular to an auxiliary device for disassembly and connection of a high-pressure liquid inlet and return pipeline, and provides a novel auxiliary device for disassembly and connection of the high-pressure liquid inlet and return pipeline in order to solve the problems that the danger coefficient is large when the high-pressure liquid inlet and return pipeline is disassembled and the work efficiency is low when multiple connection is conducted. Comprising two detachable hoops and a chain hoist, the two detachable hoops are clamped and fixed to the positions, close to pipe heads, of two sections of high-pressure liquid pipelines respectively, and hanging rings connected with two lifting hooks on the chain hoist in a matched mode are fixed to the circumferential walls of the two detachable hoops respectively. According to the utility model, the contraction force after the pipelines are dismounted is removed through the chain lever block, and meanwhile, the connection distance between the two pipelines is shortened, so that the connection of the pipelines is more convenient, the working efficiency of replacing seals or the pipelines is improved, the time cost is saved, and the danger coefficient of operation is reduced.
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