Coal mine underground single prop inspection apparatus

Abstract

The invention provides a coal mine underground single prop inspection apparatus, which comprises a vertical ruler, a top ruler and a horizontal ruler, wherein the top ruler is welded above the vertical ruler, the horizontal ruler is welded on the side surface of the vertical ruler, a pressure gauge ring and a data recording plate groove are welded on the vertical ruler, a pressure gauge is inserted into the pressure gauge ring and can be removed at any time to check the initial support force and the working resistance of a single prop, and the data recording plate groove is used for insertingof a recording plate. According to the present invention, the coal mine underground single prop inspection apparatus has characteristics of simple structure, easy processing and convenient use; and when the single prop is arranged at the working surface, the single prop and the hinged top beam can be arranged at the middle position, and the single props in the same row are positioned in the same straight line through the advanced measurement with the coal mine underground single prop inspection apparatus, such that the support protection quality of the single prop can be ensured so as to ensure the safe production of the mine shaft.

Description

technical field [0001] The invention relates to a coal mine engineering inspection device, in particular to a single pillar inspection device for underground coal mines. Background technique [0002] The individual pillars for the advance support of the transportation roadway and the air return roadway in the coal mining face need to be laid in rows, and the positioning of all hinged roof beams and single pillars must be uniform, but in actual operation, visual inspection is often used to determine Check whether the individual supports are arranged in rows, and whether the positioning of the hinged roof beam and the individual pillars is uniform. The inspection error is large, which seriously affects the laying quality of the individual pillars, and directly brings hidden dangers to the safe production of the mine. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a single pillar inspection device for underground c...

AI Technical Summary

Problems solved by technology

[0002] The individual pillars for the advance support of the transportation roadway and the air return roadway in the coal mining face need to be laid in rows, and the positioning of all hinged roof beams and single pillars must be uniform, but in actual operation, visual inspection is often used to determine Check whether the individual supports are arranged in rows, and whether the positioning of the hinged roof beam and the individual pillars is uniform. The inspection error is large, which seriously affects the laying quality of the individual pillars, and directly brings hidden dangers to the safe production of the mine.

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