Strata displacement monitoring point location device

Abstract

The present invention discloses a strata displacement monitoring point location device. The device comprises a first hoop, a second hoop, a third hoop, a connection rod having a bottom hinged on the first hoop, an auxiliary rod having a top hinged at the third hoop, two elastic constriction devices connected with the first hoop and the third hoop and two screws. The first hoop has four through holes, the third hoop is provided with two circular holes and two irregularly-shaped holes, the circular holes and the irregularly-shaped holes are arranged at intervals, one ends of the two elastic constriction devices are respectively connected with the two circular holes of the third hoop, the other ends thereof are connected with the corresponding through holes on the first hoop, the bottom ends of the screws pass through the through holes of the first hoop, the other ends thereof pass through the irregularly-shaped holes on the third hoop, the second hoop has a gap, the first hoop and the second hoop are connected through a connection tube, the top of the connection tube is provided with an elastic buckle, and the outer side of the top of the connection rod is connected with a support claw through a rotating shaft. The strata displacement monitoring point location device can conveniently and stably perform location and fixing in the strata displacement monitoring and timely obtain the rock stratum variation data.

Description

Technical field [0001] The invention relates to the field of coal mining safety monitoring, in particular to a positioning device for monitoring point of rock formation displacement. Background technique [0002] The mining depth and mining intensity of coal mines in our country are getting bigger and bigger. With the continued mining of coal mines, the first layer of coal is gradually being mined. Mining the lower group of coal will inevitably involve the study of coal mining technology and mine pressure theory under the goaf. [0003] For coal mine production and theoretical research, rock displacement monitoring is an extremely important research method. However, monitoring the displacement of the goaf in the overburden has always been a difficult problem. After surface drilling is drilled into the goaf, the hole wall is incomplete and the drilling fluid is leaking seriously. The general drilling technology cannot meet the requirements, resulting in the displacement system of th...

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Problems solved by technology

However, it has always been a difficult problem to monitor the stratum displacement in the goaf in the overlying rock. After drilling into the goaf, the hole wall is incomplete and the drilling fluid leakage is serious. The general drilling technology cannot meet the requirements, resulting in the displacement system of the entire strata. Unable to deploy monitoring

The existing rock displacement monitoring equipment cannot meet the needs of actual production and work. Therefore, a convenient, stable and reliable rock displacement monitoring point positioning device is needed to meet the needs of rock displacement monitoring work and can effectively and timely obtain rock formation activities. information

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