Coal mine tunnel rock wall deformation monitoring device
A deformation monitoring, coal mine roadway technology, applied in the direction of measuring devices, instruments, etc., can solve the problems of inconvenience, increase the use cost of the device, interference of precision electronic components, etc., and achieve the effect of simple installation and use, easy mobile use, and long service life.
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[0021] A coal mine roadway rock wall deformation monitoring device of the present invention is realized in this way. It is composed of a supporting device, a supporting device, a flushing device and a warning device. The supporting device is composed of a connecting pipe frame (1), a supporting rod (2), a fixed Pipe (3), sliding rod (4), roller (5), wheel frame (19) and return spring (20), the connecting pipe frame (1) is composed of a vertical rod and a semicircular rod, and one end of the two vertical rods is respectively It is placed on both ends of the semicircular rod and communicated with the inside of the semicircular rod. The other end of the vertical rod is bent toward the inside of the semicircular plate to form a bending part. The inside of the bending part cooperates with the inside of the semicircular rod to form a storage In the water channel, both ends of the support rod (2) are placed on the semicircular rod, and are respectively close to the two ends of the sem...
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