Air bag type grouting hole packer

Abstract

An air bag type grouting hole packer comprises grouting pipes and a plurality of annular cloth bags, the annular cloth bags are arranged at intervals and comprises inner walls and outer walls, the outer walls and the inner walls are sealed to form closed spaces, the closed spaces serve as grouting sealing cavities of the annular cloth bags, sections extending along the outer walls and the inner walls of two ends in the length direction of each annular cloth bag form grouting holes communicated with the corresponding grouting sealing cavity, and the grouting pipes sequentially penetrate the annular cloth bags through the grouting holes. By the aid of the annular cloth bags with new structures, the annular cloth bags comprise inner walls and the outer walls, the inner walls enclose through holes for placing gas drainage pipes, the outer walls are arranged outside the inner wall in sleeved manner, so that the grouting sealing cavities formed by the outer walls and the inner walls are uniformly distributed outside the gas drainage pipes, the acting force of the grouting sealing cavities to the gas drainage pipes is uniform after grouting, and damage to the gas drainage pipes is avoided.

Description

technical field [0001] The invention relates to a hole sealing device, in particular to a bag type grouting hole sealing device. Background technique [0002] The grouting hole sealing device is to facilitate the sealing and sealing of unused boreholes after coal mining, but the current traditional hole sealing devices have the following disadvantages: First, the operation is more complicated, and the capsule needs to be sealed before grouting during use. The two ends of the bag are manually sealed, which wastes operating time and is inefficient; second, the two ends that are manually sealed are prone to poor sealing during use, resulting in poor sealing effect of the sealing chamber. Some cloth bags are located behind the gas drainage pipe and exert uneven force on the pipe wall, which is likely to cause damage to the pipe wall. Contents of the invention [0003] The purpose of the present invention is to provide a bag-type grouting and sealing device to solve the proble...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a bag-type grouting and sealing device to solve the problems of low working efficiency, poor sealing and uneven force bearing of the gas drainage pipe in the existing hole sealing device.

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