A coal mine goaf monitoring device

Abstract

The application provides a coal mine goaf monitoring device, and relates to the technical field of coal mine safety monitoring. The device comprises a mounting frame, the upper side of the mounting frame is provided with a moving plate, the upper surface of the moving plate is fixedly connected with two first connecting plates, the first connecting plates are rotatably connected with a first connecting seat through a shaft body between the two first connecting plates, the inside of the first connecting seat is slidably connected with a second connecting seat, and the upper surface of the second connecting seat is fixedly connected with two second connecting plates. The cooperation between the motor, the first connecting seat, the second connecting seat, the mounting plate and the inclination monitor facilitates the staff to adjust the angle of the sensor according to the actual use condition, thereby ensuring the subsequent monitoring precision of the sensor, effectively reducing the monitoring error, and the adjustment mode is relatively simple, the staff does not need to disassemble the sensor for secondary installation, the adjustment efficiency is improved, and the device has high practicability.

Description

Technical Field

[0001] This utility model relates to the field of coal mine safety monitoring technology, and more specifically, to a coal mine goaf monitoring device. Background Technology

[0002] As a high-risk industry, the coal mining sector is receiving increasing attention regarding safety in today's world. Roof collapses caused by mine pressure have been the leading cause of disaster in coal mining history, resulting in the highest economic losses among all types of accidents each year. This is especially true in soft rock roadways, where deformation is particularly severe and the roof and floor collide, seriously impacting safe production and endangering the lives of miners.

[0003] Existing devices used for monitoring coal mine roadways face challenges during installation. These challenges arise because roadway floors may vary in height, and roofs are often uneven. Most existing monitoring devices use fixed mounting frames, preventing dynamic sensor angle adjustment. Furthermore, when the rock wall is partially tilted, the sensor's detection direction may form an angle with the rock wall's normal, leading to measurement errors and significantly impacting real-time monitoring. This often necessitates reinstalling sensors and adding shims to adjust their angles, ensuring perpendicularity to the roadway wall – a cumbersome and impractical process with poor safety. Therefore, we propose a coal mine goaf monitoring device to address these issues. Utility Model Content

[0004] The purpose of this invention is to solve the problem that some current coal mine goaf monitoring devices are not convenient for adjusting the installation angle of the sensors.

[0005] To achieve the aforementioned objectives and address the aforementioned problems, this utility model provides a coal mine goaf monitoring device, comprising a mounting frame. A movable plate is mounted on the upper side of the mounting frame. Two first connecting plates are fixedly connected to the upper surface of the movable plate. A first connecting seat is rotatably connected between the two first connecting plates via a shaft. A second connecting seat is slidably connected inside the first connecting seat. Two second connecting plates are fixedly connected to the upper surface of the second connecting seat. An installation plate is rotatably connected between the two second connecting plates via a shaft. An inclination monitor is mounted on the upper surface of the installation plate. A pressure sensor and a grating sensor are also mounted on the upper surface of the installation plate. Motors are fixedly connected to the surfaces of both the first and second connecting plates. The output shafts of the two motors rotatably penetrate into the interiors of the first and second connecting plates, respectively. The output shafts of the two motors are fixedly connected to the shafts of the first connecting seat and the installation plate, respectively. A control box and a data processing module are fixedly connected to the surface of the horizontal plate of the mounting frame. Guide grooves are formed on both sides of the horizontal plate of the mounting frame, and drive components are disposed inside the guide grooves.

[0006] As a preferred technical solution of this application, the drive assembly includes a threaded rod, which is fixedly connected inside the guide groove. An L-shaped sliding seat is slidably connected inside the guide groove, and the L-shaped sliding seat is movably sleeved on the outside of the threaded rod.

[0007] As a preferred technical solution of this application, the L-shaped sliding seat and the moving plate are fixedly connected, the L-shaped sliding seat has a cavity inside, and a connecting component is provided inside the cavity.

[0008] As a preferred technical solution of this application, the connecting assembly includes a support ring, which is rotatably connected to the inner wall of the cavity. The support ring is threaded onto the outside of the threaded rod, and a first bevel gear is fixedly connected to the other end of the support ring. The first bevel gear is movably sleeved onto the outside of the threaded rod.

[0009] As a preferred technical solution of this application, the first bevel gear is externally meshed with a second bevel gear, and an operating rod is fixedly connected to the side of the second bevel gear away from the first bevel gear. The operating rod rotates through the interior of the L-shaped sliding seat.

[0010] As a preferred technical solution of this application, an electric push rod is fixedly connected between the first connecting seat and the second connecting seat, and the telescopic end of the electric push rod is fixedly connected to the lower surface of the second connecting seat.

[0011] As a preferred technical solution of this application, a first support rod is fixedly connected to the lower surface of the mounting bracket, a second support rod is slidably sleeved on the outside of the first support rod, and a locking bolt is threadedly connected to the inside of the second support rod.

[0012] As a preferred technical solution of this application, the surface of the first support rod is provided with a plug groove, which is compatible with the locking bolt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] In the scheme of this application:

[0015] 1. Through the cooperation between the motor, first connecting seat, second connecting seat, mounting plate, tilt monitor and other structures, it is easy for the staff to adjust the angle of the sensor according to the actual use, thereby ensuring the subsequent monitoring accuracy of the sensor, effectively reducing the monitoring error. At the same time, the adjustment method is relatively simple, and there is no need for the staff to disassemble the sensor for secondary installation, which improves the adjustment efficiency and has high practicality.

[0016] 2. Through the cooperation of the operating lever, first bevel gear, second bevel gear, threaded rod, support ring and other structures, the position of the sensor can be adjusted by the operator. This allows the operator to change the monitoring point according to the actual use needs, thereby further improving the flexibility and applicability of the device. It is simple to operate and highly practical. Attached Figure Description

[0017] Figure 1 A schematic diagram of the coal mine goaf monitoring device provided in this application;

[0018] Figure 2 This is a schematic diagram of the moving plate in the coal mine goaf monitoring device provided in this application;

[0019] Figure 3 A schematic diagram of the internal structure of the guide groove in the coal mine goaf monitoring device provided in this application;

[0020] Figure 4 A cross-sectional structural diagram of the cavity in the coal mine goaf monitoring device provided in this application;

[0021] Figure 5 A cross-sectional view of the first connecting seat in the coal mine goaf monitoring device provided in this application;

[0022] Figure 6 This is a cross-sectional structural diagram of the second support rod in the coal mine goaf monitoring device provided in this application.

[0023] The image shows:

[0024] 1. Mounting bracket; 2. Movable plate; 3. First connecting plate; 4. First connecting seat; 5. Second connecting seat; 6. Second connecting plate; 7. Mounting plate; 8. Tilt monitor; 9. Pressure sensor; 10. Grating sensor; 11. Motor; 12. Control box; 13. Data processing module; 14. Guide groove; 15. Threaded rod; 16. L-shaped sliding seat; 17. First bevel gear; 18. Support ring; 19. Second bevel gear; 20. Operating lever; 21. Cavity; 22. Electric push rod; 23. First support rod; 24. Second support rod; 25. Locking bolt; 26. Insertion groove. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0029] Example 1

[0030] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 A coal mine goaf monitoring device includes a mounting frame 1. A movable plate 2 is provided on the upper side of the mounting frame 1. Two first connecting plates 3 are fixedly connected to the upper surface of the movable plate 2. A first connecting seat 4 is rotatably connected between the two first connecting plates 3 via a shaft. A second connecting seat 5 is slidably connected inside the first connecting seat 4. Two second connecting plates 6 are fixedly connected to the upper surface of the second connecting seat 5. An mounting plate 7 is rotatably connected between the two second connecting plates 6 via a shaft. An inclination monitor 8 is provided on the upper surface of the mounting plate 7. A pressure sensor 9 and a grating sensor 10 are also provided on the upper surface of the mounting plate 7. Motors 11 are fixedly connected to the surfaces of the first connecting plates 3 and the second connecting plates 6. The output shafts of the two motors 11 rotatably penetrate into the interiors of the first connecting plates 3 and the second connecting plates 6, respectively. The output shafts of the two motors 11 are fixedly connected to the shafts of the first connecting seat 4 and the mounting plate 7, respectively. A control box 12 and a data processing module 13 are fixedly connected to the surface of the horizontal plate of the mounting frame 1. Guide grooves 14 are provided on both sides of the horizontal plate of the mounting frame 1. A drive assembly is provided inside the guide grooves 14.

[0031] Among them, the tilt monitor 8, pressure sensor 9 and grating sensor 10 are all conventional technologies in this field, so they will not be described in detail in this article.

[0032] In the above embodiments, power supplies, wires, controllers, and microcomputers are also provided in conjunction with the two motors 11. Since these are not the main improved structures, they will not be described in detail here.

[0033] Example 2

[0034] The coal mine goaf monitoring device provided in Example 1 has been further optimized, specifically, as follows: Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the drive assembly includes a threaded rod 15, which is fixedly connected inside the guide groove 14. An L-shaped sliding seat 16 is slidably connected inside the guide groove 14, and the L-shaped sliding seat 16 is movably sleeved on the outside of the threaded rod 15.

[0035] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the L-shaped sliding seat 16 and the movable plate 2 are fixedly connected. The L-shaped sliding seat 16 has a cavity 21 inside, and a connecting component is provided inside the cavity 21.

[0036] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the connecting assembly includes a support ring 18, which is rotatably connected to the inner wall of the cavity 21. The support ring 18 is threaded onto the outside of the threaded rod 15. The other end of the support ring 18 is fixedly connected to a first bevel gear 17, which is movably sleeved on the outside of the threaded rod 15.

[0037] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the first bevel gear 17 is externally meshed with the second bevel gear 19, and the side of the second bevel gear 19 away from the first bevel gear 17 is fixedly connected to the operating lever 20. The operating lever 20 rotates through the interior of the L-shaped sliding seat 16.

[0038] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, an electric push rod 22 is fixedly connected between the first connecting seat 4 and the second connecting seat 5. The telescopic end of the electric push rod 22 is fixedly connected to the lower surface of the second connecting seat 5. By activating the electric push rod 22, the second connecting seat 5 can be driven to slide inside the first connecting seat 4, thereby realizing the adjustment of the height of the tilt monitor 8, the pressure sensor 9 and the grating sensor 10.

[0039] Among them, the electric actuator 22 is also equipped with a power supply, wires, controller and microcomputer, etc. Since they are not the main structures, they will not be described in detail in this article.

[0040] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, a first support rod 23 is fixedly connected to the lower surface of the mounting bracket 1, and a second support rod 24 is slidably sleeved on the outside of the first support rod 23. A locking bolt 25 is threadedly connected to the inside of the second support rod 24.

[0041] Furthermore, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the surface of the first support rod 23 is provided with a plug groove 26, which is compatible with the locking bolt 25.

[0042] The usage process of the coal mine goaf monitoring device provided by this utility model is as follows:

[0043] By moving the device to the area that needs to be monitored, adjusting the height of the mounting bracket 1 to a suitable height, and then rotating the locking bolt 25 into the insertion slot 26, the height of the mounting bracket 1 is fixed.

[0044] When it is necessary to change the monitoring point of the monitoring device, rotating the operating lever 20 will drive the second bevel gear 19 to rotate. The rotation of the second bevel gear 19 will drive the first bevel gear 17 to rotate. The rotation of the first bevel gear 17 will drive the support ring 18 to rotate. Since the support ring 18 is threadedly connected to the threaded rod 15 and the support ring 18 is rotatably connected to the inner wall of the cavity 21, when the support ring 18 rotates, it will drive the L-shaped sliding seat 16 to slide outside the threaded rod 15. The movement of the L-shaped sliding seat 16 will drive the movement of the moving plate 2, and the movement of the moving plate 2 will drive the movement of the mounting plate 7, thereby realizing the adjustment of the position of the tilt monitor 8, pressure sensor 9 and grating sensor 10.

[0045] Subsequently, the angle between the mounting plate 7 and the tunnel roof is monitored using the tilt monitor 8. When tilting occurs, two motors 11 are activated by the external control system. The rotation of the output shaft of the lower motor 11 can adjust the angle of the mounting plate 7 in the left and right directions, while the rotation of the output shaft of the upper motor 11 can adjust the angle of the mounting plate 7 in the front and back directions. This ensures that the grating sensor 10 and the pressure sensor 9 are in the appropriate positions, guaranteeing the accuracy of subsequent monitoring.

[0046] Subsequently, the electric push rod 22 is activated by an external control component. The movement of the telescopic end of the electric push rod 22 can drive the second connecting seat 5 to slide inside the first connecting seat 4, thereby realizing the fine adjustment of the height of the tilt monitor 8, pressure sensor 9 and grating sensor 10.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A coal mine goaf monitoring device, characterized in that, The system includes a mounting bracket (1), on the upper side of which a movable plate (2) is provided. Two first connecting plates (3) are fixedly connected to the upper surface of the movable plate (2). A first connecting seat (4) is rotatably connected between the two first connecting plates (3) via a shaft. A second connecting seat (5) is slidably connected inside the first connecting seat (4). Two second connecting plates (6) are fixedly connected to the upper surface of the second connecting seat (5). A mounting plate (7) is rotatably connected between the two second connecting plates (6) via a shaft. An inclination monitor (8) is provided on the upper surface of the mounting plate (7). A pressure gauge is also provided on the upper surface of the mounting plate (7). Sensor (9) and grating sensor (10), motors (11) are fixedly connected to the surfaces of the first connecting plate (3) and the second connecting plate (6), the output shafts of the two motors (11) respectively rotate through the interior of the first connecting plate (3) and the second connecting plate (6), the output shafts of the two motors (11) are fixedly connected to the shaft of the first connecting seat (4) and the shaft of the mounting plate (7) respectively, the control box (12) and the data processing module (13) are fixedly connected to the surface of the horizontal plate of the mounting frame (1), and guide grooves (14) are opened on both sides of the horizontal plate of the mounting frame (1), and drive components are arranged inside the guide grooves (14).

2. The coal mine goaf monitoring device according to claim 1, characterized in that, The drive assembly includes a threaded rod (15), which is fixedly connected inside a guide groove (14). An L-shaped sliding seat (16) is slidably connected inside the guide groove (14), and the L-shaped sliding seat (16) is movably sleeved on the outside of the threaded rod (15).

3. A coal mine goaf monitoring device according to claim 2, characterized in that, The L-shaped sliding seat (16) and the moving plate (2) are fixedly connected. The L-shaped sliding seat (16) has a cavity (21) inside, and a connecting component is provided inside the cavity (21).

4. A coal mine goaf monitoring device according to claim 3, characterized in that, The connecting assembly includes a support ring (18), which is rotatably connected to the inner wall of the cavity (21). The support ring (18) is threaded onto the outside of the threaded rod (15). The other end of the support ring (18) is fixedly connected to a first bevel gear (17), which is movably sleeved on the outside of the threaded rod (15).

5. A coal mine goaf monitoring device according to claim 4, characterized in that, The first bevel gear (17) is externally meshed with a second bevel gear (19). An operating lever (20) is fixedly connected to the side of the second bevel gear (19) away from the first bevel gear (17). The operating lever (20) rotates through the interior of the L-shaped sliding seat (16).

6. A coal mine goaf monitoring device according to claim 5, characterized in that, An electric push rod (22) is fixedly connected between the first connecting seat (4) and the second connecting seat (5), and the telescopic end of the electric push rod (22) is fixedly connected to the lower surface of the second connecting seat (5).

7. A coal mine goaf monitoring device according to claim 6, characterized in that, The lower surface of the mounting bracket (1) is fixedly connected to a first support rod (23), and a second support rod (24) is slidably sleeved on the outside of the first support rod (23). The inside of the second support rod (24) is threaded with a locking bolt (25).

8. A coal mine goaf monitoring device according to claim 7, characterized in that, The surface of the first support rod (23) is provided with a plug groove (26), which is compatible with the locking bolt (25).

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