A device for preventing backflow and gas leakage by drilling and punching the lower screen pipe

By designing a device that integrates drill rod, cutter body and anti-spill joint, the problems of return water and gas spill during underground construction of coal mines are solved, the efficiency and success rate of gas release pipes are improved, and the construction process is simplified.

CN118442111BActive Publication Date: 2025-03-21HENAN JUKUANG INTELLIGENT EQUIP CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202410680472.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-05-29
Publication Date
2025-03-21
Estimated Expiration
2044-05-29

AI Technical Summary

Technical Problem

During underground construction of coal mines, the existing technology has problems of return water and gas spillage in the drilling, hydraulic punching and gas release pipe descent, resulting in low construction efficiency and low success rate.

Method used

A device integrating drill rod, cutting tool body, cutting tool joint, anti-spill joint and high-pressure nozzle is designed. Through the design of cutting tool body and cutting tool joint, the structure of the barrier ball and through hole is used to realize the lowering of hydraulic punching and gas release pipes to prevent return water and gas spillage.

Benefits of technology

This device can improve the efficiency and success rate of the gas release tube, solve the problem of water and gas overflow during drilling, and simplify the construction process.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The present invention discloses a device for preventing backwater and gas leakage under a screen pipe during drilling and punching, comprising a drill rod, one end of the drill rod being fixedly connected to a drilling machine, the rear end of the drill rod being connected to a water pipe, one end of the drill rod being fixedly connected to a cutter body, the end of the cutter body away from the drill rod being fixedly connected to a cutter joint, the end of the cutter joint away from the cutter body being fixedly connected to an anti-leakage joint, the cutter body being symmetrically provided with high-pressure nozzles, the cutter joint being provided with a first baffle ball, and the anti-leakage joint being provided with a second baffle ball. The present invention integrates the processes of drilling, hydraulic punching and lowering a gas release pipe into one device, which can not only improve the lowering efficiency of the gas release pipe, but also improve the success rate of lowering the gas release pipe, and at the same time solves the problem of water or gas overflowing into the tunnel through the inner hole of the drill rod during drilling.
Need to check novelty before this filing date? Find Prior Art