Coal mine coal seam roof crack probing device

Abstract

The utility model relates to the technical field of coal seam roof probing, and discloses a coal mine coal seam roof crack probing device which comprises a first supporting frame, a closed probing mechanism is arranged on the top of the first supporting frame, an auxiliary mechanism is arranged at the bottom of the first supporting frame, and the closed probing mechanism comprises a lifting frame. The lifting frame is fixedly installed at the top of the first supporting frame, and an air cylinder is fixedly installed at the top of the lifting frame. Through the overall design of the closed probing mechanism, the height of the annular base can be driven to be reduced, through the design of the rubber ring, the space between the top of the hole and the annular base can be closed, an operator can fill air into the hollow cylinder and an inner cavity of the annular rubber bag, the annular rubber bag is promoted to expand, and therefore the probing effect is achieved. The space between the outer wall of the hollow cylinder and the inner wall of the hole is sealed, the problem that the efficiency of sealing the hole by means of materials is low is solved, meanwhile, sealing treatment can be conducted on the holes with small specifications, and the applicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal seam roof detection, in particular to a coal mine coal seam roof crack detection device. Background Art

[0002] The coal seam roof refers to the rock layer covering the coal seam in the normal sequence of coal-bearing strata profile. During the construction of coal mines, it is necessary to explore the cracks in the coal seam roof. The continuous real-time monitoring method is now mostly used. This method arranges monitoring holes underground and liquid pressure sensors in the holes to monitor the changes in liquid pressure in real time, thereby judging the formation time and height of the roof cracks. This method can continuously monitor the dynamic development process of the cracks, reduce the impact of the test method on the results, and reduce the monitoring cost.

[0003] A Chinese patent discloses a coal mine coal seam roof crack detection device, with the announcement number CN217976079U. The technical solution disclosed in the patent document is as follows: it includes a vehicle body, which is provided with a circular hole, a mounting frame and a support rod. The circular hole is set in the middle of the vehicle body, the mounting frame is set on the circular hole, the support rod is set on one side of the mounting frame, the mounting frame is provided with a controller and a cylinder, the driving end of the cylinder is provided with a first motor, the driving end of the first motor is fixedly connected to a drill rod, and the end of the drill rod is located in the circular hole.

[0004] In order to solve the problem that regular manual exploration is affected by the underground environment, and it is impossible to conduct effective and accurate exploration during exploration, resulting in poor results, the existing technology adopts a method of designing a water pressure detector, a drill rod, a controller and other structures to deal with it. However, there is still a situation where the hole cannot be automatically sealed. After the water pressure detector is inserted into the hole, the hole needs to be manually sealed with the help of sealing materials, which makes it inconvenient to use. Utility Model Content

[0005] The purpose of the utility model is to provide a coal mine coal seam roof crack detection device to solve the problem that the existing technology cannot automatically seal the holes.

[0006] The utility model provides the following technical solution: a coal mine coal seam roof crack detection device, comprising a No. 1 support frame, the top of the No. 1 support frame is provided with a closed detection mechanism, and the bottom of the No. 1 support frame is provided with an auxiliary mechanism;

[0007] The closed exploration mechanism includes a lifting frame, which is fixedly installed on the top of the No. 1 support frame, and a cylinder is fixedly installed on the top of the lifting frame. The telescopic end of the cylinder extends to the bottom of the lifting frame and is fixedly connected to a lifting plate. A connecting rod is welded on the outer wall of the lifting plate, and an end of the connecting rod away from the lifting plate is fixedly connected to an annular seat, and a rubber ring is fixedly connected to the bottom of the annular seat. A hollow cylinder is fixedly installed on the inner wall of the annular seat, and an annular rubber bag is fixedly connected to the outer surface of the hollow cylinder. A connecting hole is opened on the outer surface of the hollow cylinder.

[0008] As a preferred embodiment of the above technical solution, the top of the hollow cylinder is fixedly connected with a three-way pipe, the left side of the three-way pipe is fixedly connected with a one-way valve, and the top of the three-way pipe is fixedly connected with a manual valve.

[0009] As a preferred embodiment of the above technical solution, a closing plate is fixedly installed on the inner wall of the hollow cylinder, the top of the closing plate is fixedly connected to the water pressure detector body, and the top of the closing plate is fixedly connected to the water injection valve.

[0010] As a preferred embodiment of the above technical solution, the auxiliary mechanism includes a transparent hollow column, which is fixedly installed on the bottom of the No. 1 support frame, and the No. 2 support frame is fixedly installed on the bottom of the transparent hollow column, and the universal wheel is fixedly installed on the bottom of the No. 2 support frame.

[0011] As a preferred embodiment of the above technical solution, a mesh tube is fixedly connected to the top of the transparent hollow column, and an interlayer plate is fixedly installed on the inner wall of the transparent hollow column.

[0012] As a preferred embodiment of the above technical solution, a buzzer is fixedly installed on the top of the partition board, and a flashing light column is fixedly installed on the bottom of the partition board.

[0013] As a preferred embodiment of the above technical solution, a bar frame is fixedly installed on the side of the No. 2 support frame, an L-shaped plate is detachably connected to the inner wall of the bar frame, a positioning bolt is threadedly connected to the side of the bar frame, the threaded end of the positioning bolt is movably connected to the side of the L-shaped plate, and a positioning hole is provided on the top of the L-shaped plate.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The utility model can drive the height of the annular seat to descend through the overall design of the closed detection mechanism, and can seal the top of the hole and the annular seat through the design of the rubber ring. The operator can add air to the inner cavity of the hollow cylinder and the annular rubber bag to cause the annular rubber bag to expand, thereby sealing the outer wall of the hollow cylinder and the inner wall of the hole, avoiding the problem of low efficiency in sealing the hole with the help of materials, facilitating user use, and at the same time being able to seal holes with slightly different specifications, thereby increasing applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the bottom structure of the annular seat of the utility model;

[0018] Figure 3 This is a schematic diagram of the separation structure of the hollow cylinder and the closing plate of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-section structure of the transparent hollow column of the utility model;

[0020] Figure 5 This is a schematic structural diagram of the L-shaped plate of the utility model.

[0021] In the figure: 1. Support frame No. 1; 2. Closed detection mechanism; 21. Lifting frame; 22. Cylinder; 23. Lifting plate; 24. Connecting rod; 25. Annular seat; 251. Rubber ring; 252. Hollow tube; 253. Annular rubber bag; 254. Connecting hole; 255. Tee; 256. One-way valve; 257. Manual valve; 26. Closing plate; 261. Water pressure detector body; 262. Water filling valve; 3. Auxiliary mechanism; 31. Transparent hollow column; 311. Interlayer board; 312. Buzzer; 313. Flashing light column; 314. Net tube; 32. Support frame No. 2; 33. Universal wheel; 34. Bar frame; 35. L-shaped plate; 36. Positioning bolt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0023] like Figure 1-Figure 5As shown, the utility model provides a technical solution: a coal mine coal seam roof crack detection device, including a No. 1 support frame 1, the top of the No. 1 support frame 1 is provided with a closed detection mechanism 2, the bottom of the No. 1 support frame 1 is provided with an auxiliary mechanism 3, the closed detection mechanism 2 includes a lifting frame 21, the lifting frame 21 is fixedly installed on the top of the No. 1 support frame 1, the top of the lifting frame 21 is fixedly installed with a cylinder 22, the telescopic end of the cylinder 22 extends to the bottom of the lifting frame 21 and is fixedly connected to a lifting plate 23, a connecting rod 24 is welded on the outer wall of the lifting plate 23, the end of the connecting rod 24 away from the lifting plate 23 is fixedly connected to an annular seat 25, the bottom of the annular seat 25 is fixedly connected to a rubber ring 251, and the inner wall of the annular seat 25 is fixedly installed There is a hollow cylinder 252, and an annular rubber bag 253 is fixedly connected to the outer surface of the hollow cylinder 252. A connecting hole 254 is opened on the outer surface of the hollow cylinder 252 to control the cylinder 22 to extend. The annular seat 25 can be driven to descend through the transmission of the lifting plate 23 and the connecting rod 24. The top of the hole and the annular seat 25 are sealed by the rubber ring 251. The operator can add air to the inner cavity of the hollow cylinder 252 and the annular rubber bag 253 to cause the annular rubber bag 253 to expand, and the outer wall of the hollow cylinder 252 and the inner wall of the hole are sealed, which is convenient for users to use. Through the design of the connecting hole 254, the inner cavity of the hollow cylinder 252 can be connected with the inner cavity of the annular rubber bag 253.

[0024] As an implementation method in this embodiment, Figure 1-Figure 3 As shown, a three-way pipe 255 is fixedly connected to the top of the hollow cylinder 252, a one-way valve 256 is fixedly connected to the left side of the three-way pipe 255, and a manual valve 257 is fixedly connected to the top of the three-way pipe 255. A closing plate 26 is fixedly installed on the inner wall of the hollow cylinder 252, and a water pressure detector body 261 is fixedly connected to the top of the closing plate 26. A water injection valve 262 is fixedly connected to the top of the closing plate 26. The output end of the external gas source is connected to the one-way valve 256. By controlling the output gas of the external gas source, gas can be delivered to the inner cavity of the hollow cylinder 252 and the annular rubber bag 253. By controlling the manual valve 257 to open, the gas inside the annular rubber bag 253 can be released, causing the annular rubber bag 253 to produce a reset deformation. By opening the water injection valve 262, water can be injected into the hole through the hollow cylinder 252. Through the design of the water pressure detector body 261, the water pressure inside the hole can be monitored, and the monitoring data can be fed back to the external controller through an electrical signal.

[0025] As an implementation method in this embodiment, Figure 1 、 Figure 4 、 Figure 5As shown, the auxiliary mechanism 3 includes a transparent hollow column 31, which is fixedly mounted on the bottom of the No. 1 support frame 1, and a No. 2 support frame 32 is fixedly mounted on the bottom of the transparent hollow column 31, and a universal wheel 33 is fixedly mounted on the bottom of the No. 2 support frame 32. A net tube 314 is fixedly connected to the top of the transparent hollow column 31, and an interlayer plate 311 is fixedly mounted on the inner wall of the transparent hollow column 31, a buzzer 312 is fixedly mounted on the top of the interlayer plate 311, and a flashing light column 313 is fixedly mounted on the bottom of the interlayer plate 311. A bar frame 34 is fixedly mounted on the side of the No. 2 support frame 32, and an L-shaped plate 35 is detachably connected to the inner wall of the bar frame 34. A positioning bolt 36 is threadedly connected to the side of the bar frame 34, and the positioning bolt 3 The threaded end of 6 is movably connected to the side of the L-shaped plate 35. A positioning hole is provided on the top of the L-shaped plate 35. If the water pressure data monitored by the water pressure detector body 261 is abnormal, it means that the cracks in the coal seam roof are abnormal. Then the external controller controls the buzzer 312 and the flashing light column 313 to work, and emits an audible and visual alarm to remind nearby workers. The design of the universal wheel 33 makes it easy to move the device. After moving into place, loosen the positioning bolt 36 and then fit the bottom of the L-shaped plate 35 to the ground. Then tighten the positioning bolt 36, and then add a weight to the top of the L-shaped plate 35 to complete the positioning of the device. You can also drive a screw into the ground through the positioning hole on the top of the L-shaped plate 35 to position the device.

[0026] Working principle: First, a hole is opened on the coal seam roof, and then the annular seat 25 is moved to the hole, and the position of the No. 2 support frame 32 is positioned, and then the cylinder 22 is controlled to extend, driving the annular seat 25 to descend, and the rubber ring 251 seals the top of the hole and the annular seat 25. The operator can add air to the inner cavity of the hollow cylinder 252 and the annular rubber bag 253 from the one-way valve 256 to cause the annular rubber bag 253 to expand, and seal the outer wall of the hollow cylinder 252 and the inner wall of the hole, and then through the opening By opening the water injection valve 262, water can be injected into the hole through the hollow tube 252. The design of the water pressure detector body 261 can monitor the water pressure inside the hole, and the monitoring data can be fed back to the external controller through an electrical signal. If the water pressure data monitored by the water pressure detector body 261 is abnormal, it means that there is an abnormality in the cracks in the coal seam roof. Then, the external controller controls the buzzer 312 and the flashing light column 313 to work, and sends out an audible and visual alarm. By connecting the external controller to the Internet, the data monitored by the water pressure detector body 261 can be uploaded to the Internet.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A coal mine coal seam roof crack detection device, comprising a first support frame (1), characterized in that: The top of the No. 1 support frame (1) is provided with a closed detection mechanism (2), and the bottom of the No. 1 support frame (1) is provided with an auxiliary mechanism (3); The closed detection mechanism (2) includes a lifting frame (21), the lifting frame (21) is fixedly installed on the top of the No. 1 support frame (1), a cylinder (22) is fixedly installed on the top of the lifting frame (21), the telescopic end of the cylinder (22) extends to the bottom of the lifting frame (21) and is fixedly connected to a lifting plate (23), a connecting rod (24) is welded on the outer wall of the lifting plate (23), the end of the connecting rod (24) away from the lifting plate (23) is fixedly connected to an annular seat (25), the bottom of the annular seat (25) is fixedly connected to a rubber ring (251), a hollow cylinder (252) is fixedly installed on the inner wall of the annular seat (25), an annular rubber bag (253) is fixedly connected to the outer surface of the hollow cylinder (252), and a connecting hole (254) is opened on the outer surface of the hollow cylinder (252).

2. A coal mine coal seam roof crack detection device according to claim 1, characterized in that: The top of the hollow cylinder (252) is fixedly connected to a three-way pipe (255), the left side of the three-way pipe (255) is fixedly connected to a one-way valve (256), and the top of the three-way pipe (255) is fixedly connected to a manual valve (257).

3. The coal mine coal seam roof crack detection device according to claim 1, characterized in that: A closing plate (26) is fixedly mounted on the inner wall of the hollow cylinder (252), a water pressure detector body (261) is fixedly connected to the top of the closing plate (26), and a water injection valve (262) is fixedly connected to the top of the closing plate (26).

4. The coal mine coal seam roof crack detection device according to claim 1, characterized in that: The auxiliary mechanism (3) comprises a transparent hollow column (31), wherein the transparent hollow column (31) is fixedly mounted on the bottom of the first support frame (1), a second support frame (32) is fixedly mounted on the bottom of the transparent hollow column (31), and a universal wheel (33) is fixedly mounted on the bottom of the second support frame (32).

5. The coal mine coal seam roof crack detection device according to claim 4, characterized in that: The top of the transparent hollow column (31) is fixedly connected with a mesh tube (314), and the inner wall of the transparent hollow column (31) is fixedly mounted with an interlayer plate (311).

6. The coal mine coal seam roof crack detection device according to claim 5, characterized in that: A buzzer (312) is fixedly mounted on the top of the interlayer plate (311), and a flashing light column (313) is fixedly mounted on the bottom of the interlayer plate (311).

7. The coal mine coal seam roof crack detection device according to claim 6, characterized in that: A bar frame (34) is fixedly mounted on the side of the second support frame (32), an L-shaped plate (35) is detachably connected to the inner wall of the bar frame (34), a positioning bolt (36) is threadedly connected to the side of the bar frame (34), the threaded end of the positioning bolt (36) is movably connected to the side of the L-shaped plate (35), and a positioning hole is opened on the top of the L-shaped plate (35).

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