Convenient-to-close protection device for coal mine blasting

Abstract

The invention discloses a convenient-to-close protection device for coal mine blasting. The protection device comprises a protection steel plate, connecting bulges, connecting grooves, bolts, fixed blocks and a fixed base, wherein a clamping groove is formed in the protection steel plate; an elastic non-slip mat is arranged in the clamping groove; the connecting bulges are positioned on the left side of the protection steel plate; fixed through holes are formed in the connecting bulges; the fixed blocks are connected with the protection steel plate; the fixed blocks are connected with connecting rods; clamping blocks are arranged at the tail ends of the connecting rods; the fixed base is connected with the protection steel plate through a connecting shaft; and fixed rods are arranged on the fixed base. According to the convenient-to-close protection device for coal mine blasting, the clamping groove and the elastic non-slip mat are arranged, rubbles continuously impact the protection steel plate, the protection steel plate is damaged, rubble impact force can be relieved through the arranged elastic non-slip mat, the protection steel plate can be protected, and the service life of the protection steel plate is prolonged.

Description

technical field [0001] The invention relates to the technical field of coal mine blasting, in particular to a collapsible protective device for coal mine blasting. Background technique [0002] Coal mines are areas where human beings exploit coal resources in coal-rich mining areas, and are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far away from the surface, it is generally selected to excavate the coal by digging the roadway underground, which is an underground coal mine. When the distance between the coal seam and the surface is very short, it is generally chosen to directly strip the surface soil layer to excavate coal, which is an open-pit coal mine. The vast majority of coal mines in my country are underground coal mines. When digging coal in an underground coal mine, it is necessary to blast the coal mine. During the blasting process, there will be gravel splashing. If you do not hide behind the bunker for protection...

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Problems solved by technology

[0003] The purpose of the present invention is to provide an easily foldable protective device for coal mine blasting, to solve the problem that the current protective device proposed in the above-mentioned background technology is inconvenient to move and cannot adjust the inclination angle, and the large volume of the protective device is not easy to fold. Putting together for moving and handling problems

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