Interval non-coupling grain fixing device for presplitting blasting

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AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By designing a fixing device for spaced uncoupled medicine columns, the problem of position and interval adjustment of medicine columns during blasting is solved, and the blasting effect and quality are improved.

CN222652053UActive Publication Date: 2025-03-21QIANNAN DEV RESOURCES DEV CO LTD

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Patent Information

Application Number: CN202421497984.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-27
Publication Date: 2025-03-21
Estimated Expiration: 2034-06-27

Application Information

Patent Timeline

27 Jun 2024

Application

CN202421497984.4

21 Mar 2025

Publication

CN222652053U

IPC: F42D1/22

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AI Technical Summary

Technical Problem

During the blasting process of uncoupled charges in the interval, the softness of the bamboo strips makes it difficult for the medicine column to adjust the air spacing and axis position, affecting the blasting effect.

Method used

A fixing device including a cylinder, adjustable charge and fastener is designed to ensure the correct position and space of the medicine column in the gun bore through the adjustable axial charge capacity adjustment of the charge and the fastener fixing function.

Benefits of technology

By adjusting the air spacing and axis position of the medicine column, the blasting effect is improved, the concentration of blasting energy is increased, the number of flying stones is reduced, and the crushing efficiency and blasting quality are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an interval non-coupling grain fixing device for presplitting blasting, which belongs to the technical field of blasting engineering and comprises a cylindrical body with at least one open end, an adjustable charging piece and a fastener, the cylindrical body is used for being placed in a blast hole, the adjustable charging piece is movably mounted in the cylindrical body, and the fastener is used for fastening the adjustable charging piece. The adjustable charging piece is arranged in the cylindrical body and coincides with the axis of the cylindrical body, the axial charging capacity of the adjustable charging piece is adjustable, the adjustable charging piece is used for charging grains with different capacities, and the fastening piece is in threaded connection with the outer wall of the adjustable charging piece and used for positioning the adjustable charging piece at different axial positions in the cylindrical body. According to the utility model, the grains are positioned at the axis position of the blast hole through the barrel-shaped body, and the air interval between the two adjacent grains is adjusted by adjusting the axial charging capacity of the adjustable charging piece and the position of the adjustable charging piece, so that the explosion of the adjacent grains is coordinated with each other; and the overall blasting effect is improved.

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