Pipe replacement old pipe breaking device

By combining the support ring and the crushing component, the problem of inaccurate pressure control during the bursting process of the old pipe breaking device is solved, thus achieving controllability and stability of the breaking process and reducing construction risks and costs.

CN224475085UActive Publication Date: 2026-07-10CHINA CONSTR FOURTH ENG DIV INSTALLATION ENG
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Patent Information

Application Number
CN202521569150.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-25
Publication Date
2026-07-10
Estimated Expiration
2035-07-25

AI Technical Summary

Technical Problem

Existing old pipe breaking devices have difficulty accurately controlling the pressure application point during the bursting process, resulting in inconsistent pipe rupture, residual pipe fragments, which affect the laying of new pipes and may damage the surrounding soil and adjacent pipelines, increasing construction risks and costs.

Method used

By employing a support ring and a crushing assembly, and through a combination of a sliding assembly and a crushing head, the old pipes are pre-treated, ground, and broken, ensuring that the degree of breakage is controllable, reducing residual fragments, and adapting to stable movement of different pipe diameters.

Benefits of technology

It achieves precise control over the old pipe breaking process, reduces residual debris, lowers construction risks and subsequent repair costs, and improves the versatility and applicability of the device.

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Abstract

The utility model relates to break the technical field of device, especially pipeline replacement old pipe break device. Its technical scheme includes two support rings, and a plurality of support rods are fixedly arranged between the support rings, and the outer wall of support rod is fixedly connected with sliding assembly for guiding support ring respectively, the fixed sleeve block of fixed sleeve is connected to the outer wall of support rod, and the fixed sleeve block is provided with the stirring assembly for breaking the pipeline between. The utility model can first polish the old pipe pretreatment, and then complete the breakage through the pressure effect, so that the old pipe breakage degree is more controllable, avoids the breakage not thoroughly due to uneven intensity distribution, reduces the hindrance of residual pipe body fragment to subsequent new pipe laying.
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