Deep hole blasting charging structure

By using airbags as a filling layer in the deep-hole blasting charge structure, the problem of difficult fixation of explosives in upward-opening deep holes is solved, achieving stable installation and convenient use, expanding the scope of application and reducing costs.

CN223726982UActive Publication Date: 2025-12-26JIANGXI MINGYONG BLASTING ENG CO LTD
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Patent Information

Application Number
CN202520135408.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-12-26
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

In existing technologies, during the loading process of deep holes opened upwards, the explosive and filler are not easy to fix and are prone to falling off, resulting in poor loading stability, limited applicability, and high cost.

Method used

An airbag is used as the filling layer. The surface of the airbag is provided with a wire hole and an air inlet pipe. It is connected to the pagoda head through an inflation hose. The airbag fits tightly against the inner wall of the channel to ensure the stable installation of the explosive layer and prevent the wire from coming loose. The airbag and the explosive layer are arranged alternately, and the explosive layer is fixed after inflation.

Benefits of technology

It improves the installation stability and ease of use of the explosive layer, expands its application range, reduces costs, and is suitable for deep-hole charging with upward-facing holes.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model discloses a deep hole blasting charging structure which comprises a hole channel and an explosive layer. The utility model has the beneficial effects that: the air bag is arranged, when the explosive layer is mounted, the detonator can be embedded into the explosive layer, a lead passes through the threading hole formed in the uninflated air bag, then the explosive layer is plugged into the hole channel, the hose is connected with the pagoda head, the uninflated air bag is plugged into the hole channel, and then the explosive layer is mounted in the hole channel. The air bag is inflated through the hose, after the air bag is inflated, on one hand, the inner wall of the hole channel is squeezed tightly, the explosive layer is prevented from falling off, the installation stability is improved, on the other hand, the wire can be squeezed tightly, the wire is prevented from loosening, and after the air bag is inflated, the inflation hose is pulled down forcibly to be separated from the pagoda head, and the next explosive layer can be installed. According to the device, the air bag is adopted as a filling layer between the explosion layers, the effect of stable installation can be achieved, the device is suitable for explosive installation of an upward hole channel, use convenience is improved, and the application range is widened.
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