Self-adaptive coal mine tunnel deformation real-time monitoring device

Abstract

A self-adaptive coal mine tunnel deformation real-time monitoring device comprises a measuring rod and self-adaptive connecting rods which are arranged at the two ends of the measuring rod and can be connected with anchor rods exposed in a tunnel. The self-adaptive connecting rod comprises a plurality of supporting rods which are hinged end to end, and a fastening bolt is arranged between every two adjacent supporting rods; the number of the supporting rods is at least three, or the number of the supporting rods is two, and one of the supporting rods is hinged to the measuring rod. The measuring rod is telescopically arranged and is provided with a bubble level gauge and a laser sensor capable of detecting the telescopic variation of the measuring rod. The self-adaptive connecting rods at the two ends of the measuring rod are connected with exposed anchor rods on the two sides of a roadway respectively, bubbles of the bubble level gauge are in a centered state by adjusting the self-adaptive connecting rods, then the fastening bolts between the supporting rods are tightened, and the laser sensor is opened, so that real-time monitoring of deformation of the coal mine roadway can be achieved. The method has the advantages of simple application and strong practicability.

Description

Technical Field

[0001] This utility model relates to the technical field of coal mine roadway deformation monitoring equipment, specifically an adaptive coal mine roadway deformation real-time monitoring device. Background Art

[0002] Coal mine roadways are vital passageways in coal mines, and their stability plays a crucial role in the safe operation of the mine. Deformation monitoring of roadways is an essential task after construction. Patent application CN202022925445.4 discloses a mine roadway deformation measuring device. It utilizes a bottom telescopic support rod to adjust the height to accommodate different measuring points, and a bidirectional graduated telescopic rod to measure the sides of the roadway to accommodate different cross-sectional sizes. Additionally, a snap-on laser rangefinder maintains the rangefinder's plumb bob, and a bubble level maintains its horizontal position, thereby improving the reliability and convenience of measuring deformation data at different cross-sections. However, the bidirectional graduated telescopic rod is the primary measuring tool, and its ends are not fixedly connected to the roadway sides, resulting in poor stability. Its telescopic range is easily affected by external factors. Furthermore, when used for monitoring cross-sections of different sizes, the telescopic rod's telescopic range needs to be constantly adjusted at both ends to maintain consistent data. However, after adjustment, the scale inevitably retracts into the rod, affecting subsequent data observation. Utility Model Content

[0003] To address the technical problems in the aforementioned background technology, such as the poor flexibility of the measuring devices when adapting to different cross-sectional sizes, the inability to achieve real-time monitoring, and the need for frequent observation of changes, this utility model provides an adaptive coal mine roadway deformation real-time monitoring device.

[0004] The technical solution of this utility model is as follows:

[0005] An adaptive coal mine roadway deformation real-time monitoring device includes a measuring rod and adaptive connecting rods located at both ends of the measuring rod, capable of connecting to exposed anchor bolts inside and outside the roadway. The adaptive connecting rod includes several support rods hinged end-to-end, with fastening bolts between adjacent support rods. There are at least three support rods, or two support rods, one of which is hinged to the measuring rod. The measuring rod is telescopically oriented and equipped with a bubble level and a laser sensor capable of detecting its expansion and contraction. By connecting the adaptive connecting rods at both ends of the measuring rod to the exposed anchor bolts on both sides of the roadway, adjusting the adaptive connecting rods to center the bubble level, and then tightening the fastening bolts between the support rods, the laser sensor can be activated to achieve real-time monitoring of coal mine roadway deformation. This device is applicable to roadway monitoring of different spans and has the advantages of being simple to use and highly practical.

[0006] Furthermore, the adaptive connecting rod is detachably connected to the measuring rod and / or anchor rod, which facilitates the overall assembly, disassembly, and storage, saves storage space, and is convenient for transportation.

[0007] In a preferred embodiment, at least three support rods are provided; one end of the adaptive connecting rod is screwed to the measuring rod, and the other end is screwed to the anchor rod via a nut sleeve. The screw connection between the adaptive connecting rod and the measuring rod is convenient and quick to assemble and disassemble, and provides strong stability. The nut sleeve enables a quick connection between the anchor rod and the adaptive connecting rod, and it is also convenient for production and use, making it highly practical.

[0008] Specifically, the adaptive connecting rod is spirally connected to the nut sleeve. The nut sleeve, anchor rod, and adaptive connecting rod are all detachably spirally connected, facilitating replacement. Furthermore, after a monitoring period ends, the adaptive connecting rod can be disassembled, while the nut sleeve can be left on the anchor rod for easy reconnection later. Simultaneously, the spiral connection between the nut sleeve and the adaptive connecting rod facilitates adjustment and replacement of the support rod.

[0009] Preferably, the measuring rod is hollow inside, and the laser sensor is located inside the measuring rod. The laser sensor forms a path inside the measuring rod, and the deformation of the coal mine roadway is monitored in real time by the change of the laser emission distance.

[0010] In a further preferred embodiment, to facilitate the installation and positioning of the bubble level, a groove is provided on the outer side of the middle part of the measuring rod along its length, and the bubble level is located in the groove.

[0011] An adaptive coal mine roadway deformation real-time monitoring device also includes a monitoring terminal that is communicatively connected to a laser sensor. When the distance of the laser emitted by the laser sensor shortens and the data changes, the monitoring data is uploaded to the monitoring terminal in real time and visualized data is generated.

[0012] In a preferred embodiment, the length of the adaptive connecting rod in its straight state is 1 / 3 to 1 / 2 of the length of the measuring rod. This ensures that the adaptive connecting rod has sufficient adjustment distance while avoiding a decrease in overall stability caused by an excessively long adaptive connecting rod.

[0013] Through the above design, the beneficial effects of this adaptive coal mine roadway deformation real-time monitoring device are as follows: the adaptive connecting rods at both ends of the measuring rod can be adjusted in length according to the distance between the two sides of the roadway by adjusting the tightness of the fastening bolts and the angle between the support rods. This allows the monitoring device (the aforementioned adaptive coal mine roadway deformation real-time monitoring device) to adapt to monitoring work in roadways of different spans. Furthermore, the adaptive connecting rods are firmly connected to the anchor rods, resulting in strong overall stability. Real-time monitoring of deformation within the roadway using a laser sensor eliminates the need for repeated manual observation, and the monitoring data can be uploaded to the monitoring terminal to produce visualized data, allowing personnel to view the results anytime, anywhere. The overall structure of this invention is easy to manufacture, and it is quick to assemble and disassemble, simple to apply, and highly practical. Attached Figure Description

[0014] In the attached diagram:

[0015] Figure 1 This is a schematic diagram of an adaptive coal mine roadway deformation real-time monitoring device according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the measuring rod in the embodiment;

[0017] Figure 3 This is a schematic diagram of the bubble level in the embodiment;

[0018] Figure 4 This is a cross-sectional view of the nut sleeve in the embodiment;

[0019] Figure 5 This is a schematic diagram of the support rod hinge in one embodiment;

[0020] The components represented by the various reference numerals in the diagram are:

[0021] 1. Adaptive connecting rod; 11. Support rod; 2. Measuring rod; 3. Laser sensor; 4. Bubble level; 5. Anchor rod; 6. Nut sleeve. DETAILED DESCRIPTION

[0022] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings.

[0023] Example

[0024] Combination Figure 1 This embodiment provides an adaptive coal mine roadway deformation real-time monitoring device, including a measuring rod 2 and an adaptive connecting rod 1 located at both ends of the measuring rod 2 and capable of connecting to the exposed anchor rods 5 inside and outside the roadway.

[0025] Furthermore, the adaptive connecting rod 1 is detachably connected to the measuring rod 2 and / or the anchor rod 5, which facilitates the overall assembly, disassembly, and storage, saves storage space, and is convenient for transportation.

[0026] In this embodiment, the adaptive connecting rod 1 includes several support rods 11 that are hinged together end to end, and fastening bolts are provided between adjacent support rods 11. There are at least three support rods 11, or two support rods 11, with one of the support rods 11 hinged to the measuring rod 2. The adaptive connecting rods 1 at both ends of the measuring rod 2 are respectively connected to the exposed anchor bolts 5 on both sides of the roadway. By adjusting the hinge angle between adjacent support rods 11, the straight length of the adaptive connecting rod 1 is changed, thereby adapting to the needs of roadways with different spans.

[0027] Combination Figure 4 In a preferred embodiment, at least three support rods 11 are provided; one end of the adaptive connecting rod 1 is screwed to the measuring rod 2, and the other end is screwed to the anchor rod 5 via a nut sleeve 6. The screw connection between the adaptive connecting rod 1 and the measuring rod 2 at one end is convenient and quick to assemble and disassemble, and has strong stability. The nut sleeve 6 enables a quick connection between the anchor rod 5 and the adaptive connecting rod 1, and the nut sleeve 6 is convenient for production and use, making it highly practical.

[0028] Specifically, the adaptive connecting rod 1 is spirally connected to the nut sleeve 6. The nut sleeve 6 is detachably spirally connected to both the anchor rod 5 and the adaptive connecting rod 1, facilitating replacement. Furthermore, after a monitoring period ends, the adaptive connecting rod 1 can be disassembled, while the nut sleeve 6 can be left on the anchor rod 5 for easy reconnection. Simultaneously, the spiral connection between the nut sleeve 6 and the adaptive connecting rod 1 facilitates the adjustment and replacement of the support rod 11.

[0029] For example, in combination Figure 5 The two hinged rods 11 have a U-shaped hinge joint at one end and a straight hinge joint at the other end. The two hinge joints are hinged together, and a fastening bolt passes through the two hinge joints. When the fastening bolt is tightened, the two rods 11 cannot rotate. When the fastening bolt is loose, the angle between the two rods 11 can be adjusted at will.

[0030] In another embodiment, the two hinged rods 11 can be connected by a universal joint, and the rotation or fixation of the two rods 11 can be adjusted by fastening bolts.

[0031] In a preferred embodiment, the length of the adaptive connecting rod 1 in a straight state is 1 / 3 to 1 / 2 of the length of the measuring rod 2. This ensures that the adaptive connecting rod 1 has sufficient adjustment distance while avoiding a decrease in overall stability caused by the adaptive connecting rod 1 being too long.

[0032] Combination Figure 2 , Figure 3In this embodiment, the measuring rod 2 is telescopically oriented and is equipped with a bubble level 4 and a laser sensor 3 capable of detecting its telescopic changes. By adjusting the adaptive connecting rod 1 to center the bubble in the bubble level 4, and then tightening the fastening bolts between the support rods 11, the laser sensor 3 can be activated to achieve real-time monitoring of coal mine roadway deformation.

[0033] Preferably, the measuring rod 2 is hollow inside, and the laser sensor 3 is located inside the measuring rod 2. The laser sensor 3 forms a path inside the measuring rod 2, and the deformation of the coal mine roadway is monitored in real time by the change of the laser emission distance.

[0034] In a further preferred embodiment, to facilitate the installation and positioning of the bubble level 4, a groove is provided on the outer side of the middle part of the measuring rod 2 along its length direction, and the bubble level 4 is placed in the groove. The position of the bubble in the bubble level 4 is used to determine whether the measuring rod 2 is horizontal or vertical.

[0035] An adaptive coal mine roadway deformation real-time monitoring device also includes a monitoring terminal that is communicatively connected to a laser sensor 3. When the laser distance emitted by the laser sensor 3 shortens and the data changes, the monitoring data is uploaded to the monitoring terminal in real time and visualized data is generated.

[0036] When using this monitoring device, first connect the adaptive connecting rods 1 at both ends of the measuring rod 2 to the exposed anchor rods 5 in the coal mine roadway via the nut sleeves 6; adjust the position angle between each support rod 11 to make the bubble of the bubble level 4 in the middle position, and then tighten all the fastening bolts of the adaptive connecting rod 1 to prevent the support rods 11 from rotating; turn on the laser sensor 3. If the roadway deforms, the measuring rod 2 will contract under pressure, the laser propagation path of the laser sensor 3 will shorten, and the monitoring data will change in real time. The monitoring terminal will receive the data change information; after the monitoring is completed, turn off the laser sensor 3, loosen the fastening bolts on the adaptive connecting rod 1, remove the monitoring device from the exposed anchor rod 5, and store the monitoring device for future use.

[0037] Through the above design, this utility model's adaptive coal mine roadway deformation real-time monitoring device allows the adaptive connecting rods 1 at both ends of the measuring rod 2 to adjust their length according to the distance between the two sides of the roadway by adjusting the tightness of the fastening bolts and the angle between the support rods 11. This enables the monitoring device to adapt to monitoring work in roadways of different spans. Furthermore, the adaptive connecting rods 1 and the anchor rods 5 are firmly connected, resulting in strong overall stability. The laser sensor 3 monitors the deformation within the roadway in real time, eliminating the need for repeated manual observation. Moreover, the monitoring data can be uploaded to the monitoring terminal to produce visualized data, allowing personnel to view the results anytime, anywhere. The overall structure of this utility model is easy to manufacture, quick to assemble and disassemble, simple to apply, and highly practical.

Claims

1. An adaptive real-time monitoring device for coal mine roadway deformation, characterized in that, It includes a measuring rod (2) and an adaptive connecting rod (1) located at both ends of the rod and capable of connecting to the exposed anchor rods (5) inside and outside the roadway; The adaptive connecting rod (1) includes several support rods (11) that are hinged together end to end, and fastening bolts are provided between adjacent support rods (11); The support rod (11) has at least three rods, or the support rod (11) has two rods, and one of the support rods (11) is hinged to the measuring rod (2); The measuring rod (2) is telescopic and is equipped with a bubble level (4) and a laser sensor (3) that can detect its telescopic changes.

2. The adaptive coal mine roadway deformation real-time monitoring device according to claim 1, characterized in that, The adaptive connecting rod (1) is detachably connected to the measuring rod (2) and / or the anchor rod (5).

3. The adaptive coal mine roadway deformation real-time monitoring device according to claim 2, characterized in that, The support rod (11) has at least three members; One end of the adaptive connecting rod (1) is screwed to the measuring rod (2), and the other end is screwed to the anchor rod (5) through the nut sleeve (6).

4. The adaptive coal mine roadway deformation real-time monitoring device according to claim 3, characterized in that, The adaptive connecting rod (1) is screwed to the nut sleeve (6).

5. The adaptive coal mine roadway deformation real-time monitoring device according to claim 1, characterized in that, The measuring rod (2) is hollow inside, and the laser sensor (3) is located inside the measuring rod (2).

6. The adaptive coal mine roadway deformation real-time monitoring device according to claim 1, characterized in that, The measuring rod (2) has a groove along its length on the outer side of the middle part, and the bubble level (4) is located in the groove.

7. The adaptive coal mine roadway deformation real-time monitoring device according to claim 1, characterized in that, It also includes a monitoring terminal that is connected to the laser sensor (3) for communication.

8. The adaptive coal mine roadway deformation real-time monitoring device according to claim 1, characterized in that, The length of the adaptive connecting rod (1) in a straight state is 1 / 3 to 1 / 2 of the length of the measuring rod (2).

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