Quick pipe replacing device

By designing a quick pipe changing device and utilizing connecting rods and rollers, hydraulic telescopic rods and guide rail systems, the problem of time-consuming and labor-intensive mud pipe replacement in traditional slurry shield machines has been solved, rapid replacement and environmental cleaning have been achieved, and the tunneling efficiency and stability of the shield machine have been improved.

CN223398675UActive Publication Date: 2025-09-30JIANGSU GREAT TUNNEL ENG CO LTD
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Patent Information

Application Number
CN202423160518.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-09-30
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Traditional slurry shield machines frequently install and dismantle slurry pipes during construction, which is time-consuming and labor-intensive, affecting excavation efficiency and failing to meet construction schedule requirements.

Method used

A quick pipe-changing device was designed, including a pipe-changing bracket, connecting rods and rollers, a hydraulic telescopic rod, and a guide rail system to enable rapid replacement of mud pipes. It is also equipped with a box and a bottom slurry discharge pipe to collect and discharge mud, enhancing the stability and cleanliness of the device.

Benefits of technology

It realizes the rapid replacement of mud pipes, improves the tunneling efficiency of the shield machine, keeps the working environment clean, and enhances the stability and reliability of the device.

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Abstract

The utility model discloses a quick pipe replacing device which comprises a pipe replacing support, a connecting support is arranged below the pipe replacing support, two connecting rods are detachably connected to the connecting support through a U-shaped plate, the two ends of each connecting rod are connected with idler wheels, a communicating pipe is fixedly connected to the pipe replacing support, and the communicating pipe is connected with a telescopic inner pipe through a flange. A telescopic inner pipe is arranged on the guide rail, a telescopic sleeve is arranged outside the telescopic inner pipe in a sleeved mode, a first connecting base is arranged on the telescopic inner pipe, a second connecting base is arranged on the telescopic sleeve, and the first connecting base and the second connecting base are connected through a hydraulic telescopic rod. Relative movement between the telescopic sleeve and the telescopic inner pipe is achieved in cooperation with the hydraulic telescopic rod, so that the mud pipe can be rapidly replaced, the stability of the whole pipe replacing device is enhanced by arranging the overturning-preventing support, and the situation that the pipe is accidentally inclined or overturned in the pipe replacing process is prevented.
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