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Air spacer for blasting

A technology of air spacer and air bag, which is applied in blasting and other directions, can solve the problems of high cost and cumbersome operation, and achieve the effect of convenient operation and low cost

Active Publication Date: 2017-08-25
CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently commonly used air spacers are mostly costly and cumbersome to operate

Method used

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  • Air spacer for blasting
  • Air spacer for blasting
  • Air spacer for blasting

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Embodiment Construction

[0017] In order to facilitate the understanding and implementation of the present invention, the preferred embodiments of the present invention are selected for further description in conjunction with the accompanying drawings.

[0018] Such as figure 1 , figure 2 As shown, the present invention includes an operating rod 1 and an air bag 2; the top of the air bag 2 has an air nozzle 3 for inflation, and the top of the air bag 2 is provided with at least two hinged hooks 9; the bottom of the outer wall of the operating rod 1 has a bump 10. The top surface of the bump 10 is provided with a mounting groove compatible with the hook 9. The bottom surface of the operating rod 1 is fixed with an air needle 4 and a spring 5. The air outlet end of the air needle 4 passes through the spring 5, and the spring 5 In the natural state, the end surface of the air outlet end is located in the spring 5, and the air inlet end of the air needle 4 is connected with a trachea 7, and the trachea ...

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PUM

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Abstract

The invention relates to an air spacer for blasting. The air spacer for blasting comprises an operation rod and an air bag. An air nozzle used for inflating is formed in the top of the air bag, and at least two hooks are arranged at the top of the air bag in a hinged joint mode. A protruding block is arranged at the bottom of the outer wall of the operation rod, installation grooves matched with the hooks are formed in the top face of the protruding block, an air needle and a spring are fixedly arranged on the bottom surface of the operation rod, the air outlet end of the air needle penetrates through the spring, and the end face of the air outlet end is located in the spring when the spring is in a natural state. An air pipe is connected to the air inlet end of the air needle, penetrates through the operation rod and then stretches out of the top end of the operation rod. The air bag can be arranged in the installation grooves of the protruding block through the hooks, and at the moment, the air needle and the air nozzle are connected in a matched mode to make the spring in a compressed state.

Description

technical field [0001] The invention relates to an air spacer for blasting. Background technique [0002] Drilling and blasting is a common technology for stone excavation, and it is widely used in water conservancy and hydropower, mining, transportation and other fields. The traditional continuous columnar charge has the disadvantages of large unit consumption, high detonation initial pressure, and excessive crushing of rocks, which makes the effective utilization rate of energy of explosives low, and is prone to produce large pieces and roots, causing blasting vibration hazards and many other problems. The air space charge technology can reduce the initial peak pressure of the explosive on the rock around the blasthole, and make the explosion pressure in the hole more uniformly distributed along the axial direction of the blasthole, thereby reducing or avoiding excessive crushing of the surrounding rock near the blasthole and expanding the fracture Area range, improve the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F42D1/08F42D1/22
CPCF42D1/08F42D1/22
Inventor 钟权周游范鸿杰吴建川
Owner CHINA HYDROELECTRIC ENGINEERING CONSULTING GROUP CHENGDU RESEARCH HYDROELECTRIC INVESTIGATION DESIGN AND INSTITUTE