A non-coal mine high-precision ground pressure monitoring device

Abstract

The present application relates to the technical field of mine monitoring, and more particularly to a high-precision ground pressure monitoring device for non-coal mines, which is provided to solve the problems of single monitoring dimension, high artificial dependence and delayed early warning response of existing monitoring devices, and comprises a mobile vehicle, a first telescopic rod rotatably arranged at the upper end of the mobile vehicle, a support seat arranged at the telescopic end of the first telescopic rod, a clamping mechanism arranged inside a threaded sleeve, the clamping mechanism comprising a plurality of movable clamping plates, the clamping mechanism being capable of clamping and fixing the monitor when the plurality of clamping plates move inward, and the angle of the monitor being capable of being adjusted when the inner sleeve seat moves at multiple angles; the support seat is further provided with a cleaning mechanism, the cleaning mechanism comprising two cleaning plates, the cleaning plates being capable of moving outward when the first telescopic rod telescopes to one side; and the device is integrated with automatic angle adjustment function and rock wall pre-cleaning function, thereby significantly improving the precision, convenience and adaptability of ground pressure monitoring.

Description

Technical Field

[0001] This invention relates to the field of mine monitoring technology, and in particular to a high-precision ground pressure monitoring device for non-coal mines. Background Technology

[0002] During underground mining in non-coal mines, the original stress balance of the rock mass is disrupted, leading to stress redistribution and deformation. This can easily result in plastic deformation, cracking, loosening, and even ground pressure disasters such as roof falls and spalling, seriously threatening the safety of underground workers and production. Therefore, ground pressure monitoring is one of the core links in ensuring safe production in non-coal mines. The accuracy of its monitoring data directly determines the reliability and timeliness of ground pressure disaster early warning, and is of great significance for disaster prevention and control, support design optimization, and long-term mine operation.

[0003] Currently, non-coal mine ground pressure monitoring mainly uses displacement gauges, stress gauges, and microseismic monitoring. Among them, contact monitoring devices are widely used in the industry because they can directly obtain core parameters such as rock wall stress and deformation. However, existing contact monitoring devices still have many technical defects and cannot meet the needs of high-precision monitoring. On the one hand, the rock walls in non-coal mines are often irregularly inclined, and the inclination angle varies greatly in different areas. Existing monitoring devices are mostly fixed-angle installation structures, which cannot adaptively adjust the contact angle according to the actual inclination of the rock wall. This leads to gaps and loose contact between the monitoring device and the rock wall, resulting in insufficient stress transfer, deviation in deformation data acquisition, and affecting monitoring accuracy. On the other hand, the underground working environment is complex, and the rock wall surface is prone to adhering to dust, gravel, mineral powder, and other debris. Existing monitoring devices lack a dedicated rock wall cleaning mechanism, requiring manual cleaning of the monitoring points before monitoring. This not only increases the workload and reduces monitoring efficiency, but manual cleaning is also difficult to guarantee the cleaning effect. Residual debris further hinders the effective contact between the monitoring device and the rock wall, leading to distorted monitoring data that cannot accurately reflect the true stress and deformation state of the rock mass.

[0004] In addition, existing monitoring technologies suffer from problems such as limited monitoring dimensions, high reliance on manual labor, and delayed early warning response. Furthermore, the lack of precision caused by the poor fit between the monitor and the rock wall and incomplete cleaning of monitoring points further exacerbates the risk of misjudging ground pressure disasters, making it difficult to meet the industry demand for intelligent and high-precision ground pressure monitoring in non-coal mines. Therefore, this paper proposes a high-precision ground pressure monitoring device for non-coal mines to solve the above problems. Summary of the Invention

[0005] This invention addresses the problems of existing monitoring devices, such as limited monitoring dimensions, high reliance on manual intervention, and delayed early warning response. It provides a high-precision ground pressure monitoring device for non-coal mines, which significantly improves the accuracy, convenience, and adaptability of ground pressure monitoring by integrating automatic angle adjustment and pre-sweeping functions for rock walls, effectively solving the problems mentioned in the background art.

[0006] The technical solution adopted by the present invention to solve the above problems is as follows: A high-precision ground pressure monitoring device for non-coal mines includes a mobile vehicle. The mobile vehicle has a rotatable first telescopic rod at its upper end. The telescopic end of the first telescopic rod has a support seat. The support seat has an automatic calibration mechanism at its upper end. The automatic calibration mechanism includes an inner sleeve that can move at multiple angles. The inner sleeve has a threaded sleeve, and inside the threaded sleeve is a clamping mechanism. The clamping mechanism includes multiple movable clamping plates. When the multiple clamping plates move inwards, they can clamp and fix the monitor. When the inner sleeve moves at multiple angles, it can adjust the angle of the monitor. A cleaning mechanism is also provided on one side of the support seat. The cleaning mechanism includes two cleaning plates. When the first telescopic rod extends to one side, the cleaning plates can move outwards.

[0007] Both ends of the support base are slidably connected to long guide rods on their inner walls. Each of the two long guide rods has a movable plate fixed to one end face and an anti-detachment pad fixed to the other end face. Each of the long guide rods has a spring fitted on its outer surface that cooperates with the movable plate.

[0008] Two extension rods are slidably connected to the upper surface of the flap, and the cleaning plate is fixed to the upper surface of the corresponding extension rod. A movable L-shaped rod is fixed to the outer end face of each of the two extension rods.

[0009] The first telescopic rod includes an inner square rod and an outer square tube. A first motor is provided on the inner wall of the moving vehicle. The outer square tube is fixedly connected to the output end of the first motor. The inner square rod is slidably connected to the inner wall of the outer square tube. The support seat is fixedly connected to the inner square rod.

[0010] The inner wall of each L-shaped rod is fixed with a first sliding pin, and the two end faces of the inner square rod are fixed with a first guide plate. The inner wall of each first guide plate is provided with a first inclined groove that cooperates with the first sliding pin.

[0011] The upper end of the support base is provided with a second telescopic rod, and a U-shaped seat is fixedly connected to the upper end of the second telescopic rod. The automatic calibration mechanism is installed on the inner wall of the U-shaped seat.

[0012] Both sides of the U-shaped seat are fixedly connected to a first cylindrical seat. The inner wall of each first cylindrical seat is rotatably connected to a first pin. The inner wall of each first cylindrical seat is provided with a first coil spring that cooperates with the first pin. An outer sleeve is fixedly connected to the inner end of each of the two first pins. A second cylindrical seat is fixedly connected to both end faces of the outer sleeve. The inner wall of each second cylindrical seat is rotatably connected to a second pin. The inner wall of each second cylindrical seat is provided with a second coil spring that cooperates with the second pin. The inner sleeve is fixedly connected to the outer surface of the two second pins.

[0013] The threaded sleeve is fixed to one end face of the inner sleeve seat. Multiple limiting seats are fixed to one end face of the threaded sleeve. Square guide rods are slidably connected to the inner walls of the limiting seats. The clamping plates are fixed to the inner ends of the corresponding square guide rods. A rotatable threaded cylinder is provided on the outer surface of the threaded sleeve. When the threaded cylinder rotates, it can cause the multiple clamping plates to move inward.

[0014] A handle is fixedly attached to the outer surface of the threaded cylinder, and a collar is rotatably connected to the outer surface of the threaded cylinder. Multiple second guide plates that cooperate with the square guide rod are provided on the outer surface of the collar.

[0015] The inner wall of each square guide rod is fixed with a second sliding pin, and the inner wall of each second guide plate is provided with a second inclined groove that cooperates with the second sliding pin.

[0016] Compared with the prior art, the present invention has the following advantages: In use, the mobile cart facilitates the movement of the device to a designated position. The mobile cart is existing technology and will not be described in detail. The first telescopic rod drives the support base, automatic calibration mechanism, clamping mechanism, and monitor to rotate and move to the designated position. The monitor is existing technology and will not be described in detail. The clamping mechanism, i.e., multiple clamping plates moving inwards, can fix the monitor to the inner sleeve. The automatic calibration mechanism allows for multi-angle adjustment of the monitor when the inner sleeve moves at multiple angles. The cleaning mechanism, i.e., the cleaning plate, drives the monitor and cleaning plate to move synchronously to one side when the first telescopic rod extends or retracts to one side. The cleaning plate can first contact... The device moves to the rock face, and two cleaning plates move outward to clean the rock face before the monitor contacts it for monitoring. Addressing the core shortcomings of existing non-coal mine ground pressure monitoring devices, this device significantly improves the accuracy, convenience, and adaptability of ground pressure monitoring by integrating automatic angle adjustment and pre-cleaning functions. The device automatically adjusts the angle of the monitor body according to the actual inclination of the rock face in the non-coal mine, ensuring a tight fit between the monitor and the rock face. This avoids gaps caused by fixed-angle installation, ensuring the monitor can fully receive stress and deformation signals from the rock face, reducing stress transmission loss and data acquisition deviation, and improving ground pressure monitoring data from the source. The device ensures the authenticity and reliability of data, providing accurate data support for early warning of ground pressure disasters and reducing the risk of misjudgment. It integrates a rock wall cleaning mechanism, which automatically cleans the rock wall monitoring points before monitoring, effectively removing dust, gravel, mineral powder, and other debris adhering to the rock wall surface. This prevents debris from obstructing effective contact between the monitor and the rock wall, while reducing interference with the monitoring signal. It solves the problems of low efficiency and incomplete cleaning associated with manual cleaning, ensuring that the monitoring data accurately reflects the actual state of the rock mass, further improving monitoring accuracy and meeting the core needs of high-precision ground pressure monitoring in non-coal mines. Through the synergy of automatic angle adjustment and automatic cleaning functions, this device eliminates the need for manual adjustment. The monitor's angle and the elimination of the need for manual cleaning of monitoring points significantly reduce manual workload and subjective errors caused by manual operation. It also shortens monitoring preparation time and improves the overall efficiency of ground pressure monitoring. Furthermore, its adaptive adjustment function can adapt to rock walls with different inclination angles, eliminating the need for customized installation structures for different monitoring points. Its strong adaptability makes it widely applicable to various complex rock wall environments in non-coal mines, demonstrating outstanding practicality. The automated design of this device aligns with the development trend of intelligent mining in non-coal mines. It can work collaboratively with existing ground pressure monitoring systems to automate monitoring preparation and data acquisition processes, reducing manual intervention and improving the continuity and timeliness of monitoring data. Accurate monitoring data better supports the construction of ground pressure evolution models and the operation of intelligent early warning systems, helping workers to promptly grasp the stability of the rock mass, predict ground pressure disaster risks in advance, optimize support design and prevention measures, ensure underground operation safety, extend the service life of the mine, and improve the economy and safety of mining operations. Attached Figure Description

[0017] Figure 1 This is a first isometric view of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0018] Figure 2 This is a second isometric view of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0019] Figure 3 This is a schematic diagram of the cleaning plate installation of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0020] Figure 4 This is a schematic diagram of the L-shaped rod installation of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0021] Figure 5 This is a schematic diagram of the installation of the outer casing of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0022] Figure 6 This is a schematic diagram of the installation of the inner sleeve of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0023] Figure 7 This is a schematic diagram of the clamping plate installation of a high-precision ground pressure monitoring device for non-coal mines according to the present invention.

[0024] The following are the labels in the diagram: 1-Mobile vehicle, 2-First motor, 3-Outer square tube, 4-Inner square rod, 5-Support seat, 6-Hidden plate, 7-Long guide rod, 8-Anti-detachment pad, 9-Spring, 10-Extension rod, 11-Sweeping plate, 12-L-shaped rod, 13-First guide plate, 14-First sliding pin, 15-First inclined groove, 16-Second telescopic rod, 17-Limiting telescopic rod, 18-U-shaped seat, 19-Outer sleeve seat, 20-Inner sleeve seat, 21-First cylinder seat, 22-First coil spring, 23-First pin, 24-Second cylinder seat, 25-Second coil spring, 26-Second pin, 27-Threaded sleeve, 28-Threaded cylinder, 29-Handle, 30-Ring, 31-Second guide plate, 32-Second inclined groove, 33-Second sliding pin, 34-Limiting seat, 35-Square guide rod, 36-Clamping plate, 37-First telescopic rod. Detailed Implementation

[0025] The following are specific embodiments of the present invention, and the technical solutions of the present invention will be further described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figures 1-7As shown, the present invention provides a high-precision ground pressure monitoring device for non-coal mines, including a mobile vehicle 1. The mobile vehicle 1 has a rotatable first telescopic rod 37 at its upper end. The telescopic end of the first telescopic rod 37 is provided with a support seat 5. The upper end of the support seat 5 is provided with an automatic calibration mechanism. The automatic calibration mechanism includes an inner sleeve 20 that can move at multiple angles. The inner sleeve 20 is provided with a threaded sleeve 27. The threaded sleeve 27 is provided with a clamping mechanism inside. The clamping mechanism includes multiple movable clamping plates 36. When the multiple clamping plates 36 move inward, they can clamp and fix the monitor. When the inner sleeve 20 moves at multiple angles, it can adjust the angle of the monitor. A cleaning mechanism is also provided on one side of the support seat 5. The cleaning mechanism includes two cleaning plates 11. When the first telescopic rod 37 extends to one side, the cleaning plates 11 can move outward.

[0027] like Figures 1-5As shown, the mobile vehicle 1 facilitates the movement of the device to a designated position. The mobile vehicle 1 is existing technology and will not be described further. The first telescopic rod 37 drives the support base 5, automatic calibration mechanism, clamping mechanism, and monitor to rotate and move to the designated position. The monitor is existing technology and will not be described further. The clamping mechanism, i.e., when multiple clamping plates 36 move inward, can fix the monitor to the inner sleeve 20. The automatic calibration mechanism allows for multi-angle adjustment of the monitor when the inner sleeve 20 moves at multiple angles. The cleaning mechanism, i.e., the cleaning plate 11, drives the monitor, cleaning plate 11, etc., to move synchronously to one side when the first telescopic rod 37 extends or retracts to one side. The cleaning plates 11 first contact the rock wall, and then move outwards to clean the rock wall before the monitor contacts it for monitoring. This device addresses the core shortcomings of existing non-coal mine ground pressure monitoring devices by integrating automatic angle adjustment and pre-cleaning functions, significantly improving the accuracy, convenience, and adaptability of ground pressure monitoring. The device automatically adjusts the angle of the monitor body according to the actual inclination of the rock wall in the non-coal mine, ensuring a tight fit between the monitor and the rock wall. This avoids gaps caused by fixed-angle installation, ensuring the monitor can fully receive stress and deformation signals from the rock wall, reducing stress transmission loss and data acquisition deviation, and addressing the issue from the source. This device enhances the accuracy and reliability of ground pressure monitoring data, providing precise data support for ground pressure disaster early warning and reducing the risk of misjudgment. It integrates a rock wall cleaning mechanism, which automatically cleans the rock wall monitoring points before monitoring, effectively removing floating dust, gravel, mineral powder, and other debris adhering to the rock wall surface. This prevents debris from obstructing effective contact between the monitor and the rock wall, while reducing interference with the monitoring signal. It solves the problems of low efficiency and incomplete cleaning associated with manual cleaning, ensuring that the monitoring data accurately reflects the actual state of the rock mass, further improving monitoring accuracy and meeting the core needs of high-precision ground pressure monitoring in non-coal mines. Through the synergistic effect of automatic angle adjustment and automatic cleaning functions, this device eliminates the need for manual intervention. The device allows for manual adjustment of the monitor angle and eliminates the need for manual cleaning of monitoring points, significantly reducing manual workload, minimizing subjective errors caused by manual operation, shortening monitoring preparation time, and improving the overall efficiency of ground pressure monitoring. Furthermore, this adaptive adjustment function can adapt to rock walls with different inclination angles, eliminating the need for customized installation structures for different monitoring points. Its strong adaptability makes it widely applicable to various complex rock wall environments in non-coal mines, demonstrating its outstanding practicality. The automated design of this device aligns with the development trend of intelligent mining in non-coal mines, enabling it to work collaboratively with existing ground pressure monitoring systems to automate monitoring preparation and data acquisition processes, reducing manual intervention and improving the continuity and timeliness of monitoring data.Accurate monitoring data can better support the construction of ground pressure evolution models and the operation of intelligent early warning systems, helping staff to grasp the stability of rock masses in a timely manner, predict ground pressure disaster risks in advance, optimize support design and prevention and control measures, ensure the safety of underground operations, extend the service life of mines, and improve the economy and safety of mining.

[0028] Both ends of the support base 5 are slidably connected to long guide rods 7. Each of the two long guide rods 7 has a movable plate 6 fixedly connected to one end face. Each of the two long guide rods 7 has an anti-detachment pad 8 fixedly connected to the other end face. Each of the long guide rods 7 has a spring 9 fitted on its outer surface to cooperate with the movable plate 6.

[0029] like Figure 4 As shown, the long guide rod 7 can slide left and right on the inner wall of the support base 5, that is, the limiting flap 6 can only move left and right on one side of the support base 5. The anti-detachment pad 8 can prevent the long guide rod 7 from detaching from the support base 5. The spring 9 always has a leftward driving force on the flap 6, so that the flap 6 can be in the leftmost position under normal conditions.

[0030] Two extension rods 10 are slidably connected to the upper surface of the flap 6. The cleaning plate 11 is fixed to the upper surface of the corresponding extension rod 10. A movable L-shaped rod 12 is fixed to the outer end face of each of the two extension rods 10.

[0031] like Figures 3-4 As shown, the extension rod 10 can slide back and forth on the upper surface of the flap 6. When the L-shaped rod 12 moves inward or outward, it can drive the extension rod 10, the cleaning plate 11, etc. to move inward or outward simultaneously.

[0032] The first telescopic rod 37 includes an inner square rod 4 and an outer square tube 3. A first motor 2 is provided on the inner wall of the moving vehicle 1. The outer square tube 3 is fixedly connected to the output end of the first motor 2. The inner square rod 4 is slidably connected to the inner wall of the outer square tube 3. The support seat 5 is fixedly connected to the inner rod 4.

[0033] like Figure 4 As shown, the first telescopic rod 37 is an electric telescopic rod that can extend and retract left and right. That is, the inner square rod 4 can move left and right on the inner wall of the outer square tube 3. When the inner square rod 4 moves left and right on the inner wall of the outer square tube 3, it can also drive the support base 5 to move left and right. The electric telescopic rod is existing technology and will not be described in detail. When the first motor 2 is started, it can drive the first telescopic rod 37 to move circumferentially, thereby adjusting the position of the support base 5 and the automatic calibration mechanism. The motor is existing technology and will not be described in detail.

[0034] The inner wall of the L-shaped rod 12 is fixed with a first sliding pin 14, and the two end faces of the inner square rod 4 are fixed with a first guide plate 13. The inner wall of the first guide plate 13 is provided with a first inclined groove 15 that cooperates with the first sliding pin 14.

[0035] like Figures 3-4 As shown, when the hinged plate 6, L-shaped rod 12, and first sliding pin 14 move to the right, the engagement of the first sliding pin 14 with the first inclined groove 15 enables the first sliding pin 14, L-shaped rod 12, extension rod 10, and cleaning plate 11 to move synchronously outward. When the first telescopic rod 37 extends to one side, i.e., moves to the left, the support base 5, hinged plate 6, first guide plate 13, and cleaning plate 11 can move synchronously to the left. When the hinged plate 6 and cleaning plate 11 move to the left and contact the rock wall, the first telescopic rod 37 continues to extend, causing the support base 5, first sliding pin 6, L-shaped rod 12, extension rod 10, and cleaning plate 11 to move synchronously to the left. When the guide plate 13 moves to the left, the flap 6 and the cleaning plate 11 come into contact with the rock wall, and the corresponding first sliding pin 14 no longer moves to the left. When the corresponding support seat 5 continues to move to the left, it can compress the spring 9. At this time, when the first guide plate 13 moves to the left, under the engagement of the first inclined groove 15 and the first sliding pin 14, the two cleaning plates 11 can move outward, so that the cleaning plates 11 can clean the designated area. When the first telescopic rod 37 moves to the right and retracts, the flap 6, the cleaning plate 11, etc. can be reset to the initial state under the elastic force of the spring 9.

[0036] The support base 5 is provided with a second telescopic rod 16 at its upper end, and a U-shaped seat 18 is fixedly connected to the upper end of the second telescopic rod 16. The automatic calibration mechanism is installed on the inner wall of the U-shaped seat 18.

[0037] like Figures 3-5 As shown, a limiting telescopic rod 17 is also fixedly connected to the upper end of the support base 5. The upper end of the limiting telescopic rod 17 is fixedly connected to the lower surface of the U-shaped seat 18. The limiting telescopic rod 17 can limit the U-shaped seat 18 to move up and down only at the upper end of the support base 5. The second telescopic rod 16 can drive the height of the U-shaped seat 18 and the automatic calibration mechanism, thereby adjusting the height of the automatic calibration mechanism according to the needs.

[0038] Both sides of the U-shaped seat 18 are fixedly connected to a first cylindrical seat 21. The inner wall of the first cylindrical seat 21 is rotatably connected to a first pin 23. The inner wall of the first cylindrical seat 21 is provided with a first coil spring 22 that cooperates with the first pin 23. An outer sleeve seat 19 is fixedly connected to the inner end of the two first pins 23. A second cylindrical seat 24 is fixedly connected to both end faces of the outer sleeve seat 19. The inner wall of the second cylindrical seat 24 is rotatably connected to a second pin 26. The inner wall of the second cylindrical seat 24 is provided with a second coil spring 25 that cooperates with the second pin 26. The inner sleeve seat 20 is fixedly connected to the outer surface of the two second pins 26.

[0039] like Figures 5-6As shown, the first pin 23 and the second pin 26 are configured to hinge the outer sleeve 19 to the inner wall of the U-shaped seat 18 and the inner sleeve 20 to the inner wall of the outer sleeve 19. This means that the outer sleeve 19 can rotate up and down on the inner wall of the U-shaped seat 18, and the inner sleeve 20 can rotate left and right on the inner wall of the outer sleeve 19, thereby achieving multi-angle adjustment of the clamping mechanism and the monitor. The first coil spring 22 and the second coil spring 25 are configured to keep the clamping mechanism and the monitor in a horizontal state under normal conditions. That is, when the first telescopic rod 37 extends to one side, the corresponding cleaning plate 11 can first move outward to clean the rock wall, and then the monitor can contact the rock wall. Through the automatic calibration mechanism, namely the outer sleeve 19 and the inner sleeve 20, after the monitor contacts the rock wall and is subjected to the extension pressure of the first telescopic rod 37 again, the angle can be automatically adjusted to make the monitor fit tightly against the rock wall, thereby improving the monitoring accuracy.

[0040] The threaded sleeve 27 is fixedly connected to one end face of the inner sleeve 20. Multiple limiting seats 34 are fixedly connected to one end face of the threaded sleeve 27. Square guide rods 35 are slidably connected to the inner walls of the limiting seats 34. Clamping plates 36 are fixedly connected to the inner ends of the corresponding square guide rods 35. A rotatable threaded cylinder 28 is provided on the outer surface of the threaded sleeve 27. When the threaded cylinder 28 rotates, it can cause the multiple clamping plates 36 to move inward.

[0041] like Figures 5-7 As shown, the threaded sleeve 27 is fixed to the inner sleeve seat 20. When the inner sleeve seat 20 moves, it can drive the threaded sleeve 27, the monitor, etc. to move synchronously. Through the multiple limit seats 34, the guide rod 35 and the clamping plate 36 can be limited to move inward or outward. The threaded cylinder 28 can control the clamping plate 36 to move inward to close or move outward to open.

[0042] A handle 29 is fixedly connected to the outer surface of the threaded cylinder 28, and a collar 30 is rotatably connected to the outer surface of the threaded cylinder 28. Multiple second guide plates 31 that cooperate with the square guide rod 35 are provided on the outer surface of the collar 30.

[0043] like Figure 7 As shown, the threaded cylinder 28 is threadedly connected to the outer surface of the threaded sleeve 27. When the drive handle 29 and the threaded cylinder 28 rotate, the threaded cylinder 28 can be driven to move up or down under the threaded connection with the threaded sleeve 27, that is, the corresponding collar 30 and the second guide plate 31 move up or down.

[0044] The inner wall of each square guide rod 35 is fixed with a second sliding pin 33, and the inner wall of each second guide plate 31 is provided with a second inclined groove 32 that cooperates with the second sliding pin 33.

[0045] like Figure 7As shown, the square guide rod 35, in cooperation with the second guide plate 31, can restrict the rotation of the second guide plate 31 and the collar 30. That is, when the threaded cylinder 28 rotates, it can only drive the collar 30 and the second guide plate 31 to move up and down. When the second guide plate 31 moves up and down, the second sliding pin 33, square guide rod 35, and clamping plate 36 can be driven to move inward or outward through the cooperation of the second inclined groove 32 and the second sliding pin 33. Furthermore, the threaded connection between the threaded cylinder 28 and the threaded sleeve 27 has a self-locking function. That is, when the threaded cylinder 28 does not rotate, the position of the clamping plate 36 is fixed, which can stably clamp and fix the monitor.

[0046] In use, when the multiple clamping plates 36 move inward, the monitor can be fixed on the inner sleeve 20. Through the automatic calibration mechanism, the monitor can be adjusted at multiple angles when the inner sleeve 20 moves at multiple angles. When the first telescopic rod 37 extends to one side, it drives the monitor, cleaning plate 11, etc., to move synchronously to one side. The cleaning plate 11 first contacts the rock wall, and then both cleaning plates 11 move outward to clean the rock wall before the monitor contacts the rock wall for monitoring. This device addresses the core deficiencies of existing non-coal mine ground pressure monitoring devices by integrating an automatic angle... The adjustment function and pre-cleaning function of the rock wall significantly improve the accuracy, convenience, and adaptability of ground pressure monitoring. This device can automatically adjust the angle of the monitor body according to the actual inclination of the rock wall in non-coal mines, ensuring a tight fit between the monitor and the rock wall. This avoids gap problems caused by fixed-angle installation, ensuring that the monitor can fully receive stress and deformation signals from the rock wall, reducing stress transmission loss and data acquisition deviation. This improves the authenticity and reliability of ground pressure monitoring data from the source, providing accurate data support for ground pressure disaster early warning and reducing the risk of misjudgment. The device integrates a rock wall cleaning mechanism, which can... Before monitoring, the device automatically cleans the monitoring points on the rock face, effectively removing dust, gravel, mineral powder, and other debris adhering to the rock surface. This prevents debris from obstructing effective contact between the monitor and the rock face, and reduces interference with the monitoring signal. It solves the problems of low efficiency and incomplete cleaning associated with manual cleaning, ensuring that the monitoring data accurately reflects the actual state of the rock mass, further improving monitoring accuracy and meeting the core requirements of high-precision ground pressure monitoring in non-coal mines. Through the synergy of automatic angle adjustment and automatic cleaning functions, this device eliminates the need for manual adjustment of the monitor angle and manual cleaning of the monitoring points, significantly reducing labor costs. This reduces workload, minimizes subjective errors caused by manual operation, shortens monitoring preparation time, and improves the overall efficiency of ground pressure monitoring. Furthermore, the adaptive adjustment function can adapt to rock walls with different inclination angles, eliminating the need for customized installation structures for different monitoring points. Its strong adaptability allows for wide application in various complex rock wall environments in non-coal mines, highlighting its practicality. The automated design of this device aligns with the development trend of intelligent mining in non-coal mines, enabling it to work collaboratively with existing ground pressure monitoring systems to automate monitoring preparation and data acquisition processes, reducing manual intervention and improving the continuity and timeliness of monitoring data. Accurate monitoring data better supports the construction of ground pressure evolution models and the operation of intelligent early warning systems, helping workers to promptly grasp the stability of the rock mass, predict ground pressure disaster risks in advance, optimize support design and prevention measures, ensure underground operation safety, extend the service life of the mine, and improve the economy and safety of mining operations.

Claims

1. A high-precision ground pressure monitoring device for non-coal mines, comprising a mobile vehicle (1), characterized in that: The mobile vehicle (1) is provided with a first telescopic rod (37) that can rotate at the upper end. The telescopic end of the first telescopic rod (37) is provided with a support seat (5). The upper end of the support seat (5) is provided with an automatic calibration mechanism. The automatic calibration mechanism includes an inner sleeve (20) that can move at multiple angles. The inner sleeve (20) is provided with a threaded sleeve (27). The threaded sleeve (27) is provided with a clamping mechanism inside. The clamping mechanism includes multiple movable clamping plates (36). When the multiple clamping plates (36) move inward, they can clamp and fix the monitor. When the inner sleeve (20) moves at multiple angles, the angle of the monitor can be adjusted. A cleaning mechanism is also provided on one side of the support seat (5). The cleaning mechanism includes two cleaning plates (11). When the first telescopic rod (37) extends to one side, the cleaning plates (11) can move outward.

2. The high-precision ground pressure monitoring device for non-coal mines as described in claim 1, characterized in that: The inner walls of both ends of the support base (5) are slidably connected with long guide rods (7), and each of the two long guide rods (7) is fixed with a movable plate (6) on one side end face. Each of the two long guide rods (7) is fixed with an anti-detachment pad (8) on the other side end face. Each of the long guide rods (7) is fitted with a spring (9) that cooperates with the movable plate (6) on the outer surface of the long guide rods (7).

3. The high-precision ground pressure monitoring device for non-coal mines as described in claim 2, characterized in that: The upper surface of the flap (6) is slidably connected to two extension rods (10), and the cleaning plate (11) is fixedly connected to the upper surface of the corresponding extension rod (10). The outer end face of the two extension rods (10) is fixedly connected to a movable L-shaped rod (12).

4. The high-precision ground pressure monitoring device for non-coal mines as described in claim 3, characterized in that: The first telescopic rod (37) includes an inner square rod (4) and an outer square tube (3). The inner wall of the moving vehicle (1) is provided with a first motor (2). The outer square tube (3) is fixedly connected to the output end of the first motor (2). The inner square rod (4) is slidably connected to the inner wall of the outer square tube (3). The support seat (5) is fixedly connected to the inner square rod (4).

5. The high-precision ground pressure monitoring device for non-coal mines as described in claim 4, characterized in that: The inner wall of the L-shaped rod (12) is fixed with a first sliding pin (14), and the two end faces of the inner square rod (4) are fixed with a first guide plate (13). The inner wall of the first guide plate (13) is provided with a first inclined groove (15) that cooperates with the first sliding pin (14).

6. The high-precision ground pressure monitoring device for non-coal mines as described in claim 1, characterized in that: The support base (5) is provided with a second telescopic rod (16) at the upper end, and a U-shaped seat (18) is fixedly connected to the upper end of the second telescopic rod (16). The automatic calibration mechanism is installed on the inner wall of the U-shaped seat (18).

7. A high-precision ground pressure monitoring device for non-coal mines as described in claim 6, characterized in that: The U-shaped seat (18) is fixedly connected to both sides of a first cylindrical seat (21). The inner wall of the first cylindrical seat (21) is rotatably connected to a first pin (23). The inner wall of the first cylindrical seat (21) is provided with a first coil spring (22) that cooperates with the first pin (23). An outer sleeve seat (19) is fixedly connected to the inner end of the two first pins (23). A second cylindrical seat (24) is fixedly connected to both end faces of the outer sleeve seat (19). The inner wall of the second cylindrical seat (24) is rotatably connected to a second pin (26). The inner wall of the second cylindrical seat (24) is provided with a second coil spring (25) that cooperates with the second pin (26). The inner sleeve seat (20) is fixedly connected to the outer surface of the two second pins (26).

8. The high-precision ground pressure monitoring device for non-coal mines as described in claim 1, characterized in that: The threaded sleeve (27) is fixed to one end face of the inner sleeve seat (20). Multiple limiting seats (34) are fixed to one end face of the threaded sleeve (27). Square guide rods (35) are slidably connected to the inner walls of the limiting seats (34). The clamping plates (36) are fixed to the inner ends of the corresponding square guide rods (35). A rotatable threaded cylinder (28) is provided on the outer surface of the threaded sleeve (27). When the threaded cylinder (28) rotates, it can cause the multiple clamping plates (36) to move inward.

9. A high-precision ground pressure monitoring device for non-coal mines as described in claim 8, characterized in that: A handle (29) is fixedly attached to the outer surface of the threaded cylinder (28), and a collar (30) is rotatably connected to the outer surface of the threaded cylinder (28). Multiple second guide plates (31) that cooperate with the square guide rod (35) are provided on the outer surface of the collar (30).

10. A high-precision ground pressure monitoring device for non-coal mines as described in claim 9, characterized in that: The inner wall of each square guide rod (35) is fixed with a second sliding pin (33), and the inner wall of each second guide plate (31) is provided with a second inclined groove (32) that cooperates with the second sliding pin (33).

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