Mining telescopic measuring rod manufactured by transforming fishing pole

Abstract

The invention provides a mining telescopic measuring rod manufactured by transforming a fishing pole. The measuring rod comprises a measuring tape (1), wherein the length measuring range of the measuring tape (1) is not less than 3m; the shell of the measuring tape (1) is fixed on a base (2); the cross section of the base (2) is of a U shape; the base (2) is made of a steel plate; a plug (3) is arranged at one end of the base (2), and a measuring tape guiding plate (4) is arranged at the other end of the base (2); the belt (6) of the measuring tape (1) can go in and out of the shell of the measuring tape (1) against the measuring tape guiding plate (4); the outer end of the belt (6) is fixedly connected with the extending end tip of a telescopic fishing pole (5) which is made of a non-conductive material. The invention aims to provide the mining telescopic measuring rod which is manufactured by transforming a fishing pole, is small in size and convenient to use, can be used for well guaranteeing staff safety, and is high in measuring data accuracy.

Description

technical field [0001] The invention relates to a mining telescopic measuring rod made by reforming a fishing rod. Background technique [0002] The mining telescopic measuring rod is the main mine pressure instrument for observing the law of roadway convergence and deformation. To carry out research on the law of roadway convergence and deformation is of great significance to ensure the normal production of mines. An important content of pressure observation. Through this observation, the reasonable roadway support form, support parameters and support strength can be determined, and the scope and law of the bearing pressure on the working face can be understood. At present, the mine pressure instruments we use for roadway convergence deformation observation are mainly BHS-5 mine-used movable measuring guns or telescopic measuring rulers. Because most of the instruments are relatively cumbersome and expensive, if they are used for belt roadway observation , Large pieces of...

AI Technical Summary

Problems solved by technology

At present, the mine pressure instruments we use for roadway convergence deformation observation are mainly BHS-5 mine-used movable measuring guns or telescopic measuring rulers. Because most of the instruments are relatively cumbersome and expensive, if they are used for belt roadway observation , Large pieces of coal gangue are easy to break the measuring ruler or measuring gun, which is dangerous and not conducive to the safety of measuring personnel.

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