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Blocking device and method for pipeline connection of shield machine

A connection and shield machine technology, applied in the direction of pipes/pipe joints/fittings, pipe elements, earthwork drilling and mining, etc., can solve problems such as complex procedures, high labor intensity, long labor time, etc., to reduce complex procedures and lighten The effect of labor intensity

Active Publication Date: 2015-08-19
CHINA RAILWAY CONSTR HEAVY IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a blocking device and method at the joint of pipelines to solve the technical problems of complex procedures, long labor time and high labor intensity when the mud system extends the pipeline during the mud-water shield construction process

Method used

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  • Blocking device and method for pipeline connection of shield machine
  • Blocking device and method for pipeline connection of shield machine
  • Blocking device and method for pipeline connection of shield machine

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Embodiment Construction

[0033] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.

[0034] see figure 1 , the present invention provides a blocking device at the pipeline connection of a shield machine, which includes a blocker 1 and a hydraulic cylinder 2 arranged concentrically with the blocker 1, and the outer circumference of the blocker 1 is the same size as the pipeline. Adapted to allow access to the interior of the pipeline for blocking.

[0035] The occluder 1 includes two sets of equipment distributed with the straight line of the high-pressure air pipe 7 as a symmetrical axis, which are respectively located on opposite sides; each set of equipment includes a sealing brush 4, a sealing air bag 5 and a sealing rubber 6; the sealing brush 4 is distributed on the The two ends of the occluder 1 are located at the outermost end of t...

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Abstract

The invention provides a device and a method for blocking a connecting place between pipes of a shield tunneling machine. The device comprises a blocker and a hydraulic cylinder which is concentrically arranged with the blocker, wherein the size of the periphery of the blocker is matched with a primary pipe; the blocker comprises a high-pressure air pipe joint, sealing brushes, a sealing air bag and sealing rubber; the sealing brushes are distributed at the two ends of the blocker; the sealing air bag is positioned in the middle position of the blocker; the sealing rubber is positioned between the sealing brushes and the sealing air bag; and the high-pressure air pipe joint is connected to the pipe and provides high-pressure air for the sealing air bag by an air hole. When the pipe, a prolonging pipe or other pipes required to be opened are required to be replaced to repair, the blocker equipment is conveyed to the connection place of the pipe through pushing force of the hydraulic cylinder, and outward pushing force generated by a residual liquid loop in the pipe is compensated by the friction force between the air bag expanded under pressure and the pipe wall, so that the pipes are sealed.

Description

technical field [0001] The invention relates to the technical field of tunnel engineering construction equipment, in particular, to a blocking device and method for a shield machine pipeline connection. Background technique [0002] The pipeline extension of the mud-water shield is a cumbersome and troublesome problem to solve in the construction of the mud-water balance shield. As the length of the tunnel increases, so does the pipeline, and in this case, the amount of mud in the pipeline continues to increase. Therefore, when the pipeline is extended and connecting pipes are added to the original pipeline, the mud in the original pipeline will pour out from the interface in large quantities, which will affect the construction progress, seriously pollute the tunnel environment, and bring many unnecessary troubles to the subsequent construction. [0003] The current solution for the extension of the mud-water shield pipeline is to add a mud storage box on the mud-water shie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L55/128E21D9/06
Inventor 刘飞香程永亮郑大桥麻成标王宇飞刘学
Owner CHINA RAILWAY CONSTR HEAVY IND
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