Internally and externally locking type pre-fixing device adopting rock-wall fixed-point blasting for coal mining

Abstract

The invention discloses an internally and externally locking type pre-fixing device adopting rock-wall fixed-point blasting for coal mining. The internally and externally locking type pre-fixing device comprises a first framework, a first connecting block, a fixed block and a connection buckle, wherein a lifting block is mounted in the first framework; a first clamp plate is connected to the rightside of the lifting block; a movable rod is connected to the interior of the lifting block; a rotary shaft is fixed to the bottom of the movable rod; a rotating rod is connected to the bottom end ofthe rotary shaft; the first connecting block is fixed to the right side of the first framework; a locking rod is mounted at the top end of the first connecting block; a first spring is mounted on theouter side of the locking rod; a connecting plate is connected to the top end of the first spring; and a sliding block is fixed to the left side of the connecting plate. The internally and externallylocking type pre-fixing device adopting rock-wall fixed-point blasting for coal mining disclosed by the invention has the device which can fix detonators which are arranged inside the rock wall and outside the rock wall, and can provide convenience for splicing a plurality of devices; and meanwhile, the device is higher in stability, and can provide convenience for users to adjust and use.

Description

technical field [0001] The invention relates to the technical field of rock wall fixed-point blasting, in particular to an internal and external locking type coal mine development and rock wall fixed-point blasting pre-fixing device. Background technique [0002] Rock fixed-point blasting is to use the force generated by the explosion of explosives to exert a strong impact on the rock, and then destroy the shape of the rock. When the explosive explodes, it will be released in two ways, one is the explosion shock wave, and the other is One is the release of explosive gas. When fixed-point blasting is used on the rock wall, the explosives need to be placed in the designated position. In order to prevent the explosives from sliding, the position of the explosives is usually pre-fixed. At this time, the explosives pre-fixed device will be used. Now There are still some deficiencies in the pre-fixed devices on the market, such as: [0003] 1. The traditional blasting pre-fixing ...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a pre-fixing device for rock wall fixed-point blasting of coal mine development with internal and external locking, so as to solve the problems in the internal and external locking of detonator explosives proposed in the background technology. Fixing the detonator explosives exposed outside the rock wall cannot fix the position of the detonator explosives inside the rock wall, and it is easy to cause the detonator explosives to leave the designated position due to loose fixation. At the same time, there are still some deficiencies in the assembly and fixing. Traditional fixing devices can only fix a small number of detonators and explosives, and two fixing devices cannot be assembled together. When multiple fixing devices are needed to fix the detonators in an area, it is easy to be difficult to fix due to the inability to assemble them.

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