Coal mine tunnel rock wall deformation monitoring device

Abstract

The invention discloses a coal mine tunnel rock wall deformation monitoring device. According to the device,a water storage cylinder is communicated with a warning cylinder through a water storage channel, a pure mechanical structure and liquid medium conduction are formed in a matched mode, electric driving is not needed; underground anti-explosion equipment regulations are met; the mechanical structure and the liquid medium conduction are unlikely to be damaged due to the influence of by downhole environment, so that the deformation monitoring device has a long service life. The deformation monitoring device is characterized in that: one ends of two vertical rods are arranged at the two ends of a semicircular rod respectively and communicated with the interior of the semicircular rod; and the other ends of the vertical rods are bent towards the interior of the semicircular plate to form bent parts; the interiors of the bent parts and the interior of the semicircular rod are matched to form a water storage channel; the two ends of a supporting rod are arranged on the semicircular rod and are close to the two ends of the semicircular rods respectively; multiple fixing pipes are arranged on the semicircular rod at equal angles and located on the inner side of the semicircular rod.

Description

technical field [0001] The invention relates to a coal mine roadway rock wall deformation monitoring device, which relates to a device capable of monitoring coal mine roadway deformation, and belongs to the field of coal mine equipment. In particular, it relates to a water storage cylinder that is connected to the warning cylinder through the water storage channel, cooperates to form a pure mechanical structure and liquid medium conduction, does not require electric drive, meets the requirements of underground explosion-proof equipment, and at the same time has a simple mechanical structure and liquid medium conduction, and is not easily affected. It is a deformation monitoring device with long service life due to damage caused by the influence of the downhole environment. Background technique [0002] The deformation of the surrounding rock of the roadway plays an important role in confirming the stability and operation safety of the roadway. Grasping the stress change of t...

AI Technical Summary

Problems solved by technology

[0002] The deformation of the surrounding rock of the roadway plays an important role in confirming the stability and operation safety of the roadway. Grasping the stress change of the rock wall of the roadway during construction can accurately judge the stability of the surrounding rock and the reliability of the support. Underground collapse accidents should be prevented. At present, the deformation of underground roadways is mostly monitored through sophisticated electronic components and sensors. Due to the complex and harsh underground environment, dust and water seepage often occur, which easily cause interference and damage to precision electronic components. At the same time, due to the underground explosion-proof requirements, the use of underground electrical equipment and lines should be minimized, resulting in the need for corresponding explosion-proof structures for electronic components and sensors, which greatly increases the use cost of the device

[0003] The notification number CN112033276A discloses a roadway deformation monitoring device, which is characterized in that two bases are connected by cross bars, the warning light is placed on one base, the control box is placed on the other base, and the two ends of the support frame are respectively connected to the two bases. The top is connected, the support frame is an arc frame, and a plurality of copper cores are placed in the support frame at equal intervals, and the two outermost copper cores are electrically connected through the power line, and there is a slide between the adjacent two copper cores. The sliding seat is connected with the support frame. There is a chute on the sliding seat. Conductive grooves are respectively opened on the groove walls on both sides of the chute. The conductive plate is placed in the conductive groove, and the conductive plate and the groove wall of the chute are aligned. The conductive plate is connected to the adjacent copper core, and the slider is slidably placed in the chute. The monitoring device uses electrical circuits for monitoring. It needs to be equipped with a corresponding explosion-proof structure when used. The use environment has limitations, and The exposed circuit lines are easily damaged by the damp and dusty environment in the mine

[0004] The notification number CN205448989U discloses an underground roadway deformation monitoring device, which includes a slide rail and an installation platform located on the side wall of the roadway. One end of the installation platform is provided with a roller that cooperates with the slide rail. The inside of the installation platform near the end of the roller is provided with a motor. It is equipped with a vertical support, a wireless communication device and a microprocessor connected to the wireless communication device. The other end of the vertical support is connected to a horizontal support. The underground roadway deformation monitoring device also includes a laser range finder and an inclination sensor fixed to the laser range finder. , and a correction processing unit, the device uses precision electronic components and sensors, the cost is high and easy to damage, and it is inconvenient to be equipped with corresponding explosion-proof measures when using it at the same time

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