Underwater borehole blasting rapid charging device

CN122237403APending Publication Date: 2026-06-19YANGTZE RIVER CHONGQING WATERWAY ENG BUREAU
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
YANGTZE RIVER CHONGQING WATERWAY ENG BUREAU
Filing Date
2026-04-28
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing underwater drilling and blasting technologies, the loading efficiency of segmented explosives is low and they are difficult to remove quickly in case of failure, resulting in construction delays and safety hazards.

Method used

A rapid explosive loading device was designed, comprising a cylinder, an explosive release assembly, an auxiliary loading device, and a positioning device. It achieves rapid loading of segmented explosives and rapid removal of faulty explosives through a narrow opening and through-hole structure. Combined with a lifting drive mechanism and magnetic adsorption technology, it ensures rapid connection and separation of explosives.

Benefits of technology

It improves the loading efficiency of segmented explosives, reduces construction period, lowers construction costs and safety hazards, and the cylinder has sufficient strength for reuse, reducing material waste.

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Abstract

This invention belongs to the technical field of underwater blasting machinery and equipment, and relates to a rapid charging device for underwater drilling and blasting. It includes a cylinder with a narrow opening A on its wall, extending axially from the upper part of the cylinder downwards to the bottom end. A through hole is also provided in the upper part of the cylinder, with its bottom communicating with the opening A. It also includes an explosive release assembly for controlling the vertical movement of the explosive. This rapid charging device for underwater drilling and blasting effectively solves the problem of rapid loading of segmented explosives, is suitable for drilling vessels and other operating scenarios, and enables rapid and accurate loading of segmented explosives into the borehole, significantly improving loading efficiency. Furthermore, this invention also solves the technical pain point of difficulty in retrieving segmented explosives after they have been placed in the borehole due to detonator failure. When the detonator is damaged or has poor contact, the explosive can be quickly retrieved, avoiding waste of explosives and abandoned drilling, and reducing construction costs.
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Citation Information

Patent Citations

  • Underwater drilling and blasting integrated charging structure and construction method

    CN118816662A