Mining roadway roof surrounding rock displacement monitoring and early warning device

Abstract

The utility model discloses a mining roadway roof surrounding rock displacement monitoring and early warning device, which relates to the technical field of displacement monitoring, and comprises a mounting plate and a monitor, four corners of the mounting plate are respectively provided with a mounting groove, the top of the mounting plate is fixedly provided with a movable connecting seat, the top of the movable connecting seat is movably connected with a displacement sensor, and the displacement sensor is fixedly connected with the monitor. A winding assembly is fixedly installed at the top end of the displacement sensor. After the anchor column roadway is anchored into the roof, the displacement sensors are used for monitoring the moving distance of the mooring rope, the alarm lamp is used for reminding after the moving distance reaches a certain threshold value, the multiple displacement sensors are arranged, multiple positions of the roadway roof can be monitored at the same time, the monitoring effect is improved, and the safety of the roadway roof is improved. The installation direction can be adjusted according to the position of the anchor point, and the length of the cable can be adjusted at will, so that the cable and the displacement sensor are located on the same straight line in the telescopic direction, and the monitoring accuracy is comprehensively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of displacement monitoring, in particular to a mine tunnel roof surrounding rock displacement monitoring and early warning device. Background Art

[0002] The mine tunnel roof surrounding rock displacement monitoring and early warning device is a safety monitoring device specially designed for underground mines such as coal mines. Its main purpose is to monitor the displacement of the tunnel roof surrounding rock in real time to prevent potential disasters such as tunnel collapse or surrounding rock instability, and to ensure the safety of miners and the normal production of mines. The device is usually composed of a sensor system, a data acquisition and processing system, an alarm system, and a communication and control system. The sensor system monitors the displacement or stress change of the tunnel roof surrounding rock in real time, and transmits the monitoring data to the data acquisition and processing system for processing and analysis. When the monitoring data exceeds the preset threshold, the alarm system will automatically trigger and send out an audible and visual alarm signal. At the same time, the communication and control system will transmit the monitoring data to the ground control center in real time. The ground control center takes corresponding measures to prevent potential disaster risks based on the monitoring data and analysis results.

[0003] In actual use, in order to improve the monitoring effect, it is usually necessary to set up multiple surrounding rock displacement measuring instruments. However, since one surrounding rock displacement measuring instrument currently only monitors one position, it cannot meet the needs of multi-point monitoring. Therefore, in response to the above phenomenon, it is urgent to design and produce a mining tunnel roof surrounding rock displacement monitoring and early warning device to meet the needs of actual use. Utility Model Content

[0004] The utility model provides a mine tunnel roof surrounding rock displacement monitoring and early warning device, which solves the technical problems in the background technology.

[0005] In order to solve the above technical problems, the utility model provides a mining tunnel roof surrounding rock displacement monitoring and early warning device, including a mounting plate and a monitor, the four corners of the mounting plate are provided with mounting grooves, the top of the mounting plate is fixedly installed with a movable connecting seat, the top of the movable connecting seat is movably connected with a displacement sensor, the top of the displacement sensor is fixedly installed with a winding assembly, the winding assembly is movably connected with a cable, one end of the cable is fixedly connected with an anchor column, the number of the movable connecting seats is several, the monitor is electrically connected to the displacement sensor, and the monitor is fixedly installed with an alarm light.

[0006] Preferably, the movable connecting seat includes a connecting sphere and a first threaded column, the bottom of the connecting sphere is fixedly installed with a fixed seat, the fixed seat is fixedly installed on the top of the mounting plate, the surface of the connecting sphere is movably sleeved with a first fastening sleeve, one end of the first threaded column is fixedly installed with an extrusion block, and the first fastening sleeve is threadedly installed on the surface of the first threaded column.

[0007] Preferably, the first threaded column is fixedly mounted on the bottom of the displacement sensor, a movable groove is provided in the middle of the first fastening sleeve, the extrusion block is movably mounted inside the movable groove, and the bottom of the extrusion block fits with the surface of the connecting sphere.

[0008] Preferably, a non-slip rubber pad is inlaid on the surface of the connecting sphere.

[0009] Preferably, the winding assembly includes a mounting shell, the bottom of which is fixedly mounted on the top of the displacement sensor, a winding roller is rotatably connected to the middle of the mounting shell, one end of the cable is wound around the surface of the winding roller, a circular hole is opened on the top of the mounting shell, and the cable passes through the circular hole.

[0010] Preferably, a second threaded column is fixedly mounted on the side surface of the winding roller, a second fastening sleeve is threadedly mounted on the surface of the second threaded column, and a side surface of the second fastening sleeve is fitted with a side surface of the mounting shell.

[0011] Compared with the related art, the mine tunnel roof surrounding rock displacement monitoring and early warning device provided by the utility model has the following beneficial effects:

[0012] The utility model provides a monitoring and early warning device for the displacement of surrounding rock of mine tunnel roof. After the anchor column tunnel is anchored into the roof, the displacement sensor is used to monitor the moving distance of the cable, and an alarm light is used to remind after reaching a certain threshold. The number of displacement sensors is multiple, and multiple positions of the tunnel roof can be monitored simultaneously, thereby improving the monitoring effect. The installation direction can be adjusted according to the position of the anchor point, and the length of the cable can also be adjusted arbitrarily, so that the extension and retraction directions of the cable and the displacement sensor are in the same straight line, thereby comprehensively improving the accuracy of monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the three-dimensional assembly structure of the movable connection seat of the utility model;

[0015] Figure 3 This is a schematic diagram of the cross-sectional structure of the movable connecting seat of the utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the winding component of the utility model.

[0017] Numbers in the figure: 1. Mounting plate; 2. Mounting groove; 3. Active connecting seat; 4. Displacement sensor; 5. Winding assembly; 6. Cable; 7. Anchor column; 8. Monitor; 9. Alarm light; 31. Connecting sphere; 32. Fixed seat; 33. Anti-slip rubber pad; 34. First fastening sleeve; 341. Active groove; 35. First threaded column; 36. Extrusion block; 51. Mounting shell; 52. Winding roller; 53. Second threaded column; 54. Second fastening sleeve. DETAILED DESCRIPTION

[0018] Example, by Figure 1-4 It is given that the utility model includes a mounting plate 1 and a monitor 8, the four corners of the mounting plate 1 are provided with mounting grooves 2, the top of the mounting plate 1 is fixedly installed with a movable connecting seat 3, the top of the movable connecting seat 3 is movably connected with a displacement sensor 4, the top of the displacement sensor 4 is fixedly installed with a winding assembly 5, the winding assembly 5 is movably connected with a cable 6, one end of the cable 6 is fixedly connected with an anchor column 7, the number of the movable connecting seats 3 is several, the monitor 8 is electrically connected to the displacement sensor 4, and the monitor 8 is fixedly installed with an alarm light 9.

[0019] In this embodiment, after the anchor column 7 is anchored into the roof of the tunnel, the displacement sensor 4 is used to monitor the moving distance of the cable 6, and the alarm light 9 is used to remind after reaching a certain threshold. There are multiple displacement sensors 4, and multiple positions of the tunnel roof can be monitored simultaneously. The installation direction can be adjusted according to the position of the anchor point, so that the extension and retraction directions of the cable 6 and the displacement sensor 4 are in the same straight line, thereby improving the accuracy of monitoring.

[0020] The movable connection seat 3 includes a connecting ball 31 and a first threaded column 35. The bottom of the connecting ball 31 is fixedly installed with a fixing seat 32, and the fixing seat 32 is fixedly installed on the top of the mounting plate 1. The surface of the connecting ball 31 is movably sleeved with a first fastening sleeve 34, and one end of the first threaded column 35 is fixedly installed with an extrusion block 36, and the first fastening sleeve 34 is threadedly installed on the surface of the first threaded column 35. The first threaded column 35 is fixedly installed at the bottom of the displacement sensor 4, and a movable groove 341 is opened in the middle of the first fastening sleeve 34. The extrusion block 36 is movably installed inside the movable groove 341, and the bottom of the extrusion block 36 is in contact with the surface of the connecting ball 31. The surface of the connecting ball 31 is inlaid with an anti-slip rubber pad 33.

[0021] In this embodiment, the fastening force between the extrusion block 36 and the connecting ball 31 and the first fastening sleeve 34 can be adjusted by rotating the first fastening sleeve 34, and the direction of the displacement sensor 4 can be adjusted at will by utilizing the cooperation between the connecting ball 31 and the first fastening sleeve 34; the friction between the connecting ball 31 and the first fastening sleeve 34 and the extrusion block 36 is increased by providing an anti-slip rubber pad 33.

[0022] The winding assembly 5 includes a mounting housing 51, the bottom of which is fixedly mounted on the top of the displacement sensor 4, a winding roller 52 is rotatably connected to the middle of the mounting housing 51, one end of the cable 6 is wound on the surface of the winding roller 52, a round hole is provided on the top of the mounting housing 51, and the cable 6 passes through the round hole. A second threaded column 53 is fixedly mounted on the side of the winding roller 52, a second fastening sleeve 54 is threadedly mounted on the surface of the second threaded column 53, and the side of the second fastening sleeve 54 is fitted with the side of the mounting housing 51.

[0023] In this embodiment, the length of the cable 6 can be adjusted arbitrarily according to the position of the anchor point. The winding roller 52 can be rotated arbitrarily after the second tightening sleeve 54 is loosened, and the second tightening sleeve 54 can be tightened at a suitable length.

[0024] Working principle: After the anchor column 7 is anchored into the roof of the tunnel, the displacement sensor 4 is used to monitor the moving distance of the cable 6, and the alarm light 9 is used to remind after reaching a certain threshold. There are multiple displacement sensors 4, which can realize simultaneous monitoring of multiple positions on the tunnel roof, thereby improving the monitoring effect. The installation direction can be adjusted according to the position of the anchor point, and the length of the cable 6 can also be adjusted arbitrarily, so that the extension and retraction directions of the cable 6 and the displacement sensor 4 are in the same straight line, thereby comprehensively improving the accuracy of monitoring.

Claims

1. A mine tunnel roof surrounding rock displacement monitoring and early warning device, comprising a mounting plate (1) and a monitor (8), Features: The four corners of the mounting plate (1) are provided with mounting grooves (2); a movable connection seat (3) is fixedly mounted on the top of the mounting plate (1); a displacement sensor (4) is movably connected to the top of the movable connection seat (3); a winding assembly (5) is fixedly mounted on the top of the displacement sensor (4); a cable (6) is movably connected in the winding assembly (5); one end of the cable (6) is fixedly connected to an anchor column (7); the number of the movable connection seats (3) is several; the monitor (8) is electrically connected to the displacement sensor (4); and an alarm light (9) is fixedly mounted on the monitor (8).

2. A mining tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, It is characterized in that The movable connecting seat (3) comprises a connecting ball (31) and a first threaded column (35); a fixing seat (32) is fixedly mounted on the bottom of the connecting ball (31); the fixing seat (32) is fixedly mounted on the top of the mounting plate (1); a first fastening sleeve (34) is movably sleeved on the surface of the connecting ball (31); an extrusion block (36) is fixedly mounted on one end of the first threaded column (35); and the first fastening sleeve (34) is threadedly mounted on the surface of the first threaded column (35).

3. A mining tunnel roof surrounding rock displacement monitoring and early warning device according to claim 2, It is characterized in that The first threaded column (35) is fixedly mounted on the bottom of the displacement sensor (4); a movable groove (341) is provided in the middle of the first fastening sleeve (34); the extrusion block (36) is movably mounted inside the movable groove (341); and the bottom of the extrusion block (36) is in contact with the surface of the connecting sphere (31).

4. A mining tunnel roof surrounding rock displacement monitoring and early warning device according to claim 2, It is characterized in that An anti-skid rubber pad (33) is inlaid and installed on the surface of the connecting sphere (31).

5. A mining tunnel roof surrounding rock displacement monitoring and early warning device according to claim 1, It is characterized in that The winding assembly (5) comprises a mounting shell (51), the bottom of the mounting shell (51) is fixedly mounted on the top of the displacement sensor (4), the middle of the mounting shell (51) is rotatably connected to a winding roller (52), one end of the cable (6) is wound around the surface of the winding roller (52), and a circular hole is opened at the top of the mounting shell (51), and the cable (6) passes through the circular hole.

6. A mining tunnel roof surrounding rock displacement monitoring and early warning device according to claim 5, It is characterized in that A second threaded column (53) is fixedly mounted on the side of the winding roller (52), a second fastening sleeve (54) is threadedly mounted on the surface of the second threaded column (53), and a side of the second fastening sleeve (54) fits against a side of the mounting shell (51).

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