Construction joint self-closing grouting pipe structure and using method thereof

Abstract

The construction joint self-closing grouting pipe structure comprises a grouting pipe, a booster pump guide pipe and a connecting device, the grouting pipe comprises a main body, a self-closing sealing strip, an elastic device and an external tightening net, a clamping groove is formed in the surface of the main body, and the cross section of the clamping groove is a large sector ring; a set of slurry outlet channels perpendicular to the groove bottom face are formed in the groove bottom face in the length direction of the clamping groove at intervals, the cross section of the self-closing sealing strip is a small sector ring, the self-closing sealing strip is clamped into the clamping groove, a reserved space is formed in the thickness difference position of the large sector ring and the small sector ring, and the elastic device is located in the reserved space. The outer tightening net is fixedly connected between the groove bottom face between the pulp outlet channels and the inner wall of the self-closing sealing strip, and the surface of the whole column body is wrapped with the outer tightening net. According to the elastic device, it is guaranteed that cement paste cannot enter the pipe in the concrete pouring process, meanwhile, grouting materials can be evenly distributed in the whole pipe, the efficiency of resetting of the self-closing sealing strip is guaranteed, the self-closing sealing strip is not prone to being disengaged from the groove body, and the grouting quality is improved.

Description

technical field [0001] The invention belongs to construction tools for construction joints, in particular to a self-closing grouting pipe structure for construction joints and a use method thereof. Background technique [0002] There is an existing grouting pipe for waterproofing concrete joints. The surface of the groove of the grouting pipe is covered with an elastic sealing strip, so when the concrete slurry gushes out from the through hole with a certain pressure, the sealing strip will be washed away by a certain distance, and the The distance is controlled by the fixed strap to allow smooth flow out. After the grouting is completed, the sealing strip returns to its original position due to its own elasticity, and the fixing belt covers it in the groove. The two ends of the grouting pipe are connected by pipe joints for injecting and discharging the grouting pipe, which makes the construction very convenient and thus meets the waterproof requirement. However, in actua...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a construction joint self-closing grouting pipe structure and its use method, to solve the quality problems that the sealing strip of the grouting pipe fails to return to its original position, is easily detached from the tank, and causes uneven penetration of the grouting liquid , there is also the technical problem that the clips connecting the booster pump and the grouting pipe are often not strong enough, the pressure is too high, and it is easy to break open

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