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Grouting tube

A technology for grouting pipes and pipe bodies, which is applied in the field of grouting pipes, can solve problems such as troublesome construction and lower construction quality, and achieve the effects of convenient construction and prevention of backflow

Inactive Publication Date: 2006-02-08
SUZHOU ZHONGZHENG CONSTR ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the grouting operation of the existing grouting pipe, the concrete can still flow back from the outlet of the pipe body, causing troubles to the construction and easily leading to a reduction in the construction quality

Method used

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Experimental program
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Embodiment Construction

[0017] See attached figure 1 - attached image 3 , a grouting pipe, including a pipe body 3 with a grouting channel 10, the inlet of the pipe body 3 is connected with an inlet cover 6, the inner surface of the pipe body 3 has an internal thread 11, and the The inlet cover 6 is connected with the pipe body 3 by screwing with the internal thread 11 on the pipe body 3 . The outlet of the pipe body 3 is fixedly connected with a slurry outlet conduit 1, and a one-way valve 13 is arranged inside the slurry outlet conduit 1, and the one-way valve 13 includes at least two mated one-way valve flaps 7. The one-way valve 13 has a slurry inlet 12, and the slurry inlet 12 communicates with the slurry inlet channel 10, and the one-way valve flaps 7 are combined to form a slit-like slurry outlet 8.

[0018] See attached image 3 , the one-way valve disc 7 also has cracks 9, the cracks 9 are located in the middle of the one-way valve disc 7, in the attached figure 2 Among them, the crac...

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Abstract

The grouting pipe includes one pipe with grouting passage, one mortar discharging casing connected to the pipe, one non-return valve with valve clacks possessing mortar discharging ports and set inside the mortar discharging casing, and mortar inlet passage connected to the mortar inlet. After concrete enters to the inner cavity of the non-return valve clacks, the mortar discharging ports are opened with the extrusion of concrete for outflow of concrete while the back flowing concrete is blocked with the extruded and closed mortar discharging ports.

Description

technical field [0001] The invention relates to a grouting pipe used for pouring concrete in tunnel construction. Background technique [0002] The grout pipes are pre-cast in the arched concrete slabs. In tunnel construction, since there is a gap between the arched concrete slab and the tunnel wall, the gap needs to be filled with concrete. The current grouting pipe includes a pipe body, and the inner cavity of the pipe body is a grouting channel. When grouting in the pipe body, the concrete is discharged from the outlet of the pipe body and flows into the gap. However, during the grouting operation of the existing grouting pipe, the concrete can still flow back from the outlet of the pipe body, which causes troubles to the construction and easily leads to a reduction in the construction quality. Contents of the invention [0003] The object of the present invention is to provide a grouting pipe which prevents the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
Inventor 张金明
Owner SUZHOU ZHONGZHENG CONSTR ENG