Underground mine roadway roof settlement deformation monitoring device

Abstract

The invention relates to the technical field of underground mine safety monitoring, and discloses an underground mine roadway roof settlement deformation monitoring device, which comprises a height-adjustable gantry support frame arranged in a roadway; the mounting frame is fixed at the top of the gantry supporting frame; and the three sets of supporting modules are all mounted on the mounting frame, and the three sets of supporting modules are used for supporting different positions of the roadway roof. According to the underground mine roadway roof settlement deformation monitoring device, by arranging the three supporting modules and the conversion module and the monitoring module matched with the supporting modules, multi-point settlement monitoring of different positions of the roadway roof can be achieved. Meanwhile, due to the ingenious design of the conversion module, the device can monitor the surface settlement of the roadway roof. By means of the multi-point and surface combined monitoring mode, the settlement deformation condition of the roadway roof can be comprehensively and accurately mastered, and more reliable monitoring data are provided for safe mining of mines.

Description

Technical Field

[0001] This invention relates to the field of underground mine safety monitoring technology, specifically to a monitoring device for roof settlement and deformation in underground mine roadways. Background Technology

[0002] In underground mining operations, the stability of the tunnel roof is one of the key factors affecting mine safety. As mining activities proceed, the tunnel roof is affected by various factors, such as geological structure, mining methods, and roof lithology, leading to roof settlement and deformation. If roof settlement and deformation are not monitored in a timely and accurate manner, serious safety accidents may occur, such as roof collapses and falls, causing huge losses to mine production and even endangering the lives of miners.

[0003] Currently, while some progress has been made in monitoring methods and technologies for roof settlement and deformation in underground mine roadways, some shortcomings remain. Traditional monitoring methods mainly rely on periodic manual measurements, which are not only inefficient but also unable to obtain real-time data on roof settlement and deformation, making it difficult to detect potential safety hazards in a timely manner. Furthermore, while some existing monitoring devices can achieve a certain degree of automation, they often only monitor single-point settlement of the roof, failing to comprehensively reflect the overall settlement and deformation of the roof. Moreover, these devices typically require separate support structures to ensure roof stability, resulting in the monitoring device and support structure operating independently. This not only increases equipment costs and installation complexity but may also negatively impact monitoring and support effectiveness due to incompatibility between the support structure and monitoring device.

[0004] Therefore, developing a device capable of real-time monitoring of multi-point and surface settlement deformation of the roof of underground mine roadways, and integrating it with support functions, is of significant practical importance for improving the safety of underground mines and reducing accident risks. This device should be able to operate stably in complex and variable mining environments, provide accurate and reliable monitoring data, and take timely support measures when abnormal settlement deformation is detected to ensure the safety and stability of the roadways. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a monitoring device for roof settlement and deformation in underground mine roadways. This addresses the problem that while existing monitoring devices can achieve a certain degree of automated monitoring, they often only monitor single-point settlement of the roof and cannot comprehensively reflect the overall settlement and deformation of the roof.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a monitoring device for roof settlement and deformation in underground mine roadways, comprising: Height-adjustable gantry support frame installed in the tunnel; Mounting bracket, which is fixed to the top of the gantry support frame; Three sets of support modules are installed on the mounting frame, and the three sets of support modules are used to support different positions of the roadway roof. The monitoring module is installed on the top of the gantry support frame. The monitoring module is used to collect the support settlement data of the three sets of support modules to form real-time settlement monitoring of the top plate. The conversion module, which is installed in the mounting frame, is used to control the monitoring end of the monitoring module, so that the monitoring module can monitor the settlement and deformation of the roadway roof at multiple points or on a surface through the three sets of support modules.

[0007] Preferably, the support module includes a telescopic tube connected to the mounting frame, and the telescopic end of the telescopic tube is hinged with a support plate; The conversion module includes a conversion cylinder fixed inside the mounting bracket; The detection end of the monitoring module is connected to the telescopic pipes of the three support modules through a conversion cylinder.

[0008] Preferably, an annular plate is fixedly connected inside the conversion cylinder, and a conversion unit is rotatably connected inside the conversion cylinder; The bottom ends of the telescopic pipes in the three support modules are connected to the conversion unit via the upper annular plate; The monitoring module includes three monitoring terminals, and all three monitoring terminals are connected to the conversion unit through the upper ring plate.

[0009] Preferably, the conversion unit includes a cylindrical block rotatably connected inside the conversion cylinder, and the cylindrical block is located between two annular plates. The cylindrical block has a cavity and a through pipe inside. The cylindrical block has two collection cavities inside, and both collection cavities are connected to the inside of the through pipe.

[0010] Preferably, the bottom ends of the three telescopic tubes are all fixedly connected to connecting tubes, the bottom ends of two of the connecting tubes are fixedly connected to the upper annular plate and communicate with the inside of the two tube cavities; the bottom end of the other connecting tube is rotatably connected to the top of the through tube by a sealing bushing. The monitoring module includes three test tubes. The top ends of two of the test tubes are fixedly connected to the annular plate below and communicate with the inside of the two tube cavities. The top end of the third test tube is rotatably connected to the bottom of the through pipe by a sealing bushing.

[0011] Preferably, the three telescopic tubes are arranged in a fan shape, with the telescopic tube in the middle being fixedly connected to the mounting frame, and the telescopic tubes on both sides being connected to the mounting frame in an arc-shaped sliding manner via sliding blocks, and the connecting tubes at the bottom of the two telescopic tubes being telescopic flexible tubes.

[0012] Preferably, reinforcement units are provided on both sides of the telescopic pipe, and the two reinforcement units are used to reinforce the two support modules after the angle is adjusted.

[0013] Preferably, the three test tubes are equipped with piston blocks inside, and all three test tubes are made of transparent material. The mounting bracket is equipped with a camera acquisition group for monitoring the displacement of the piston blocks.

[0014] (III) Beneficial Effects Compared with the prior art, the present invention provides a monitoring device for roof settlement and deformation in underground mine roadways, which has the following beneficial effects: This invention, by setting up three sets of support modules and corresponding conversion and monitoring modules, enables multi-point settlement monitoring of different locations on the roadway roof. Simultaneously, the ingenious design of the conversion module allows the device to also monitor the surface settlement of the roadway roof. This combined multi-point and surface monitoring method provides a comprehensive and accurate understanding of the settlement and deformation of the roadway roof, offering more reliable monitoring data for safe mining operations.

[0015] This invention's support module not only effectively supports the tunnel roof, preventing collapse due to settlement, but also simultaneously monitors settlement during the support process. This integrated design saves space, improves monitoring efficiency, and avoids the increased complexity and cost associated with separately installing support and monitoring devices. Moreover, when abnormal settlement is detected, the support module can promptly reinforce the roof, ensuring the safety of the tunnel. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a front view of the structure of the present invention; Figure 3 This is a schematic diagram of the support state of the support module of the present invention; Figure 4 For the present invention Figure 3 Rear view of the structure; Figure 5 This is a schematic diagram of the combination of the support module, monitoring module and conversion module of the present invention; Figure 6 This is a schematic diagram of the mounting bracket of the present invention; Figure 7 This is a partial sectional view of the mounting bracket of the present invention; Figure 8 For the present invention Figure 7 A magnified view of a section at point A in the middle; Figure 9 This is a cross-sectional schematic diagram of the conversion cylinder of the present invention; Figure 10 This is a partial cross-sectional view of the monitoring module of the present invention; Figure 11 This is a partial cross-sectional view of the reinforcement unit of the present invention; Figure 12 This is a schematic diagram of the conversion state of the conversion module of the present invention, wherein a is a schematic diagram of the initial state of the conversion module; b is a schematic diagram of the state of the conversion module after rotating 45 degrees; and c is a schematic diagram of the state of the conversion module after rotating 90 degrees.

[0017] In the picture: 100. Gantry support frame; 200. Mounting bracket; 300. Support module; 301. Telescopic pipe; 302. Support plate; 303. Connecting pipe; 304. Sliding block; 305. Hinge seat; 306. Diagonal brace; 307. Conical positioning block; 308. Metal spring; 309. Control pipe; 310. Balance pipe; 311. Steel sleeve; 312. Sensor; 313. Annular limit plate; 314. Cover sleeve; 315. Through port; 400. Monitoring module; 401. Test tube; 402. Piston block; 403. Camera acquisition group; 404. Detector rod; 405. Media tank; 406. Piston plate; 407. Control cylinder; 500. Conversion module; 501. Conversion cylinder; 502. Annular plate; 503. Columnar block; 504. Cavity; 505. Through pipe; 506. Collection cavity; 507. Drive component. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0019] Example 1: See attached document Figures 1 to 12 A monitoring device for roof settlement and deformation in underground mine roadways, comprising: A height-adjustable gantry support frame 100 installed in the tunnel; Mounting bracket 200 is fixed to the top of gantry support frame 100; Three sets of support modules 300 are installed on the mounting frame 200, and the three sets of support modules 300 are used to support different positions of the roadway roof. The support module 300 can not only effectively support the roof of the roadway and prevent it from collapsing due to settlement, but also monitor settlement simultaneously during the support process.

[0020] This integrated design saves space, improves monitoring efficiency, and avoids the increased complexity and cost associated with separately installing support and monitoring devices. Furthermore, when abnormal settlement is detected, the support module can promptly reinforce the roof, ensuring the safety of the roadway. Monitoring module 400 is installed on the top of gantry support frame 100. Monitoring module 400 is used to collect support settlement data from three sets of support modules 300 to form real-time settlement monitoring of the top plate. The conversion module 500 is installed in the mounting frame 200 and is used to control the monitoring end of the monitoring module 400, so that the monitoring module 400 can monitor the settlement and deformation of the roadway roof at multiple points or on the surface through the three sets of support modules 300. By setting up three sets of support modules 300, along with corresponding conversion modules 500 and monitoring modules 400, multi-point settlement monitoring of different locations on the roadway roof can be achieved. Simultaneously, the ingenious design of the conversion module 500 allows the device to also monitor the surface settlement of the roadway roof. This multi-point and surface monitoring method provides a comprehensive and accurate understanding of the settlement and deformation of the roadway roof, offering more reliable monitoring data for safe mining operations.

[0021] See attached document Figures 3 to 7 The support module 300 includes a telescopic tube 301 connected to the mounting bracket 200, and a support plate 302 is hinged to the telescopic end of the telescopic tube 301. The support plate 302 is used to make contact with the top of the roadway to form a settlement monitoring and support work. It should be noted that the support plate 302 can be selected as an arc plate or a flat plate according to the condition of the roadway roof, so as to meet the settlement monitoring and support work of different roadway roofs. The conversion module 500 includes a conversion cylinder 501 fixed inside the mounting bracket 200; the detection end of the monitoring module 400 is connected to the telescopic tubes 301 of the three support modules 300 through the conversion cylinder 501. The detection end of the monitoring module 400 is connected to the telescopic pipes 301 of the three support modules 300 through the conversion cylinder 501. This allows the monitoring module 400 to control the end to be tested through the conversion cylinder 501, enabling the monitoring module 400 to detect the settlement of one or more support modules 300, thus forming point and surface settlement monitoring.

[0022] See attached document Figure 9 and Figure 12 An annular plate 502 is fixedly connected inside the conversion cylinder 501, and a conversion unit is rotatably connected inside the conversion cylinder 501; the bottom ends of the telescopic pipes 301 in the three support modules 300 are all connected to the conversion unit through the upper annular plate 502; the monitoring module 400 includes three monitoring ends, and all three monitoring ends are connected to the conversion unit through the upper annular plate 502. Each of the three support modules 300 is connected to the monitoring module 400 via two annular plates 502 and a conversion unit, which allows the monitoring module 400 to independently detect the settlement of the three support modules 300, thereby improving the accuracy of settlement monitoring at different locations. The number of monitoring terminals of the monitoring module 400 is consistent with that of the support module 300, so as to form multiple sets of independent settlement monitoring work.

[0023] See attached document Figure 7 , Figure 9 and Figure 12 The conversion unit includes a cylindrical block 503 rotatably connected inside the conversion cylinder 501, and a driving member 507 for rotating the cylindrical block 503. The cylindrical block 503 is located between two annular plates 502, and the cylindrical block 503 has a cavity 504 and a through pipe 505 inside. The two cavities 504 are used to connect the support modules 300 on both sides to two test ends of the monitoring module 400. The through pipe 505 is used to connect the support module 300 in the middle to the test end of the monitoring module 400, thus forming multiple independent settlement monitoring operations. It should be noted here that the driving method of the driving component 507 includes manual or electric methods, specifically including driving structures such as driving handles, electric cylinders or driving motors for rotating the cylindrical block 503. The cylindrical block 503 has two collection cavities 506 inside, and both collection cavities 506 are connected to the inside of the through pipe 505. By opening the two collection chambers 506, it is convenient for the connecting pipes 303 located on both sides to connect with the inside of the two collection chambers 506. In this way, the hydraulic medium pressure inside the support module 300 of the two connecting pipes 303 directly acts on the inside of the through pipe 505, thereby forming a "surface" settlement monitoring operation.

[0024] See attached document Figure 9 and Figure 12The bottom ends of the three telescopic tubes 301 are all fixedly connected to connecting tubes 303. The bottom ends of two of the connecting tubes 303 are fixedly connected to the annular plate 502 above and are connected to the inside of the two cavities 504. Thus, when the cylindrical block 503 is rotated, the two connecting tubes 303 are connected to the inside of the two cavities 504 respectively. The bottom end of the other connecting tube 303 is rotatably connected to the top of the through tube 505 by a sealing bushing. Thus, the connecting tube 303 is connected to the inside of the through tube 505 and does not affect the rotation of the cylindrical block 503. The monitoring module 400 includes three test tubes 401. The top ends of two test tubes 401 are fixedly connected to the annular plate 502 below and communicate with the interior of two cavities 504. When the cylindrical block 503 is rotated, the two test tubes 401 communicate with the interior of the two cavities 504 respectively, so that the test tubes 401 are connected to the telescopic tube 301 of the support module 300 through the connecting tube 303. The top end of the other test tube 401 is rotatably connected to the bottom of the through pipe 505 by a sealing bushing. Thus, the test tube 401 is connected to the corresponding connecting tube 303 through the through pipe 505 and communicates with the corresponding telescopic tube 301 through the connecting tube 303. The specific principle is as follows: When conducting settlement monitoring at "multi-point" locations: through three connecting pipes 303, two cavities 504, and a through pipe 505, the three pipes to be tested 401 are connected, and the monitoring end of the monitoring module 400 can monitor the settlement in the three support modules 300 in real time. When performing settlement monitoring at a "single point" location, the cylindrical block 503 is rotated 45 degrees by the drive component 507, so that the two cavities 504 and two connecting pipes 303 are interleaved with the port of the pipe to be tested 401. The two annular plates 502 seal the two cavities 504, the two connecting pipes 303 and the ports of the two pipes to be tested 401. At this time, the vertical single-point settlement monitoring work can be carried out through the support module 300 in the middle part. When monitoring the settlement of the "surface" position of the roadway roof, the cylindrical block 503 is rotated 45 degrees by the drive component 507, so that the two connecting pipes 303 on both sides are connected to the two collection chambers 506 respectively, so that the hydraulic medium pressure inside the two telescopic pipes 301 acts synchronously to the inside of the through pipe 505, and the settlement monitoring of the "surface" is carried out through the test pipe 401 located in the middle.

[0025] See attached document Figures 5 to 8The three telescopic pipes 301 are arranged in a fan shape, and the telescopic pipe 301 in the middle is fixedly connected to the mounting frame 200. The telescopic pipes 301 on both sides are connected to the mounting frame 200 in an arc-shaped sliding manner through the sliding block 304. The connecting pipe 303 at the bottom of the two telescopic pipes 301 is a telescopic flexible hose, which facilitates the two support modules 300 to carry out monitoring and support work at different angles. The three telescopic pipes 301 are arranged in a fan-shaped equidistant manner, which improves the range of settlement monitoring and the synchronous monitoring of vertical or inclined settlement. The telescopic pipes 301 are arranged in a fan shape, and the telescopic pipes 301 on both sides are connected to the mounting frame 200 in an arc-shaped sliding manner through the sliding block 304. The angle of the support module 300 can be flexibly adjusted according to the actual shape and settlement of the roadway roof, so that the support plate 302 fits the roof better, improving the support effect and the accuracy of monitoring.

[0026] See attached document Figure 3 , Figure 4 and Figure 11 Reinforcing units are provided on both sides of the telescopic pipe 301. The two reinforcing units are used to reinforce the two support modules 300 after the angle is adjusted. The reinforcing unit includes a hinge seat 305 fixed on the sleeve of the telescopic pipe 301, and a diagonal brace 306 is hinged on the hinge seat 305. A set of conical positioning blocks 307 are provided on the top of the gantry support frame 100 to press against the bottom of the diagonal brace 306. A hinged seat 305 is fixedly connected to the telescopic pipe 301, and the hinged seat 305 is hinged to a diagonal brace 306. Through the diagonal bracing action of the diagonal brace 306, the stability of the support module 300 after angle adjustment is ensured, meeting the requirements for diagonal bracing reinforcement of the roadway roof at different angles. The design of the reinforcement unit ensures that the support module 300 has sufficient stability after angle adjustment, ensuring reliable support and monitoring operations. A row of conical positioning blocks 307 have positioning grooves on their inner sides, and a metal spring 308 for inserting into the positioning groove is fixedly connected to the bottom of the diagonal support 306. A metal spring 308 is fixedly connected to the bottom of the diagonal brace 306. When the diagonal brace 306 is stuck in the gap of the conical positioning block 307, the metal spring 308 is inserted into the positioning groove at the corresponding position, forming a simple lock at the bottom of the diagonal brace 306. This prevents the bottom of the diagonal brace 306 from shifting due to the settlement vibration of the support area during the support process of the support module 300, thereby losing the reinforcement work of the support module 300.

[0027] See attached document Figure 5 and Figure 10, there are piston blocks 402 inside the three test tubes 401, and the three test tubes 401 are all made of transparent materials. A camera acquisition group 403 for monitoring the displacement of the piston blocks 402 is arranged on the mounting rack 200; because the three test tubes 401 are all made of transparent materials, it is convenient to understand the settlement deformation situation by observing the displacement of the piston blocks 402; the camera acquisition group 403 includes a camera for collecting displacement information and a processing unit for processing the collected information. The monitoring module 400 further includes an alarm unit and a wireless communication unit for timely alarming and remotely notifying the management platform for processing.

[0028] Embodiment 2: Different from Embodiment 1; Refer to the appendix Figures 5 to 8 , the three telescopic tubes 301 are all fixedly connected and communicated with the three connecting tubes 303 through the control tubes 309; the control tubes 309 are fixedly connected and communicated with each other through the balance tubes 310, and a stop unit is arranged inside each of the three control tubes 309; By installing the control tubes 309 at the bottom of the three telescopic tubes 301 and connecting the control tubes 309 through the balance tubes 310, it is convenient to control the diversion of the liquid inside the telescopic tubes 301 through the stop unit. If the settlement pressure in a certain area is too large, resulting in a large contraction of the telescopic tube 301, the liquid medium inside the telescopic tube 301 can enter the adjacent telescopic tube 301, causing the telescopic rod of the telescopic tube 301 to顶升 (it should be "lift" in English), forming a high-strength active support work in this area, preventing the large-scale spread of settlement deformation. Moreover, through the顶升 pressure (lift pressure) in this area, the position of the settlement deformation in the initial area can be tightened, forming a multi-layer protection work with the linkage of multiple support modules 300; Through the settings of the control tubes 309, the balance tubes 310 and the stop unit, when a large-scale rapid settlement deformation occurs in a certain area, the liquid medium inside the telescopic tube 301 can automatically trigger the stop unit to temporarily lock the telescopic tube 301 and prevent the further spread of settlement deformation. At the same time, the liquid medium inside the telescopic tube 301 can flow into the adjacent telescopic tube 301 through the balance tube 310, realizing the linkage between multiple support modules 300, forming a high-strength active support, effectively coping with settlement deformation and ensuring the safety of the roadway.

[0029] The stop unit includes an annular limiting piece 313 fixed inside the control tube 309. The annular limiting piece 313 is slidably connected with a connecting rod through an elastic clamping sleeve. The elastic clamping sleeve is provided to increase the resistance of the connecting rod's up and down movement and prevent the problem that the displacement of the connecting rod is caused by the pressure of ordinary liquid medium backflow. The top end of the connecting rod is fixedly connected with a cover sleeve 314 for sealing and blocking the end of the balance tube 310, and several through holes 315 are opened at the inner edge of the cover sleeve 314; The annular limiting piece 313 is used to limit the downward movement of the cover 314. The downward movement of the cover 314 can also seal and block the opening 315 of the annular limiting piece 313, preventing the backflow of liquid medium inside the telescopic pipe 301, thereby temporarily locking the telescopic pipe 301 and allowing the support module 300 to switch from settlement monitoring mode to active-passive support mode. The opening 315 is used to prevent the backflow of liquid medium inside the telescopic pipe 301. The monitoring module 400 detects the backflowed liquid medium to understand its settlement deformation. The specific principle is as follows: When a large-scale rapid settlement deformation occurs in a certain area, the speed of its settlement deformation is much greater than that of ordinary settlement. The high speed of this settlement causes the telescopic rod inside the telescopic tube 301 to contract rapidly. The liquid medium inside the telescopic tube 301 encounters the flow restriction of the port 315, which causes the pressure inside the telescopic tube 301 to act on the cover 314, causing the cover 314 to descend rapidly. Then, the cover 314 seals and blocks the port 315 of the annular limiting piece 313, forming the trigger-type automatic locking operation of the telescopic tube 301. As the cover 314 moves downward, it not only seals and blocks the opening 315 of the annular limiting piece 313, but also loses its seal on the balance tube 310, allowing the liquid medium inside the telescopic tube 301 to enter the balance tube 310. The pressure is detected by the sensor 312. When the support module 300 in the adjacent area is also triggered, the internal pressure of the telescopic tube 301 in the two support modules 300 can reach a balanced state, realizing the mutual clamping protection of their settlement areas. It should be noted here that the port 315 is located on the outer edge of the cover 314. When the cover 314 moves downward to the limit position, its annular limiting piece 313 seals the port 315 to prevent the liquid medium from flowing back. The outer surfaces of the two balance tubes 310 are provided with steel sleeves 311, and the balance tubes 310 inside the steel sleeves 311 are provided with expandable sleeves, and the two steel sleeves 311 are provided with sensors 312 for detecting the expansion pressure of the expandable sleeves. By installing a steel sleeve 311 on the balance pipe 310, when one or more support modules 300 are subjected to significant settlement deformation pressure, the liquid medium inside the telescopic pipe 301 can cause the expandable sleeve to expand. The expansion pressure can then be detected by the sensor 312, thus enabling the detection of significant settlement deformation. Moreover, during the detection, the support module 300's support work in the settlement deformation area will not be affected at all.

[0030] Example 3: The difference from Example 1 is that; See attached document Figure 10The top of the gantry support frame 100 is fixedly connected to a medium tank 405 filled with liquid medium, and the medium tank 405 is connected to the interior of three test tubes 401 through three injection pipes. The interior of the medium tank 405 is provided with a piston plate 406, and the medium tank 405 is provided with a control cylinder 407 for driving the extension and retraction of the piston plate 406. The medium tank 405 stores liquid medium for force monitoring of the support module 300. By controlling the start of the cylinder 407, the piston plate 406 is driven to extend and retract. The extension and retraction of the piston plate 406 can inject the liquid medium inside the medium tank 405 into the three sets of support modules 300, so that the support detection end of the three sets of support modules 300 comes into contact with the roadway roof, thus forming a settlement monitoring operation. A probe rod 404 is fixedly connected to one side of each of the three piston blocks 402, and a limiting block for limiting the probe rod 404 is rotatably connected to the ends of the three tubes to be tested 401. It should be noted that the outer surface of the probe 404 is provided with scale marks, which makes it easy for the probe 404 to follow the synchronous movement of the piston block 402, so that the staff can intuitively understand the settlement and deformation of the top plate. By setting the limit block, it is easy to limit the end of the probe rod 404, so as to ensure the zeroing calibration of the piston block 402 after the monitoring module 400 installs several support modules 300. The specific principle is as follows: The end of the probe rod 404 is limited by the limiting block, and the piston plate 406 is driven by the control cylinder 407, so that the piston plate 406 squeezes the liquid medium, so that the liquid medium enters the telescopic tube 301 in the three support modules 300 through the conversion module 500, so that the telescopic rod in the telescopic tube 301 is lifted, and the support plate 302 automatically contacts the roadway roof. After the support module 300 is installed, the limiting block on the end of the probe rod 404 is no longer limited. When the support module 300 detects settlement, its piston block 402 and probe rod 404 can be displaced. The displacement of the piston block 402 is collected by the camera acquisition group 403, so that the data of roof settlement deformation can be obtained.

[0031] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A device for monitoring roof settlement and deformation in underground mine roadways, characterized in that, include: Height-adjustable gantry support frame installed in the tunnel; Mounting bracket, which is fixed to the top of the gantry support frame; Three sets of support modules are installed on the mounting frame, and the three sets of support modules are used to support different positions of the roadway roof. The monitoring module is installed on the top of the gantry support frame. The monitoring module is used to collect the support settlement data of the three sets of support modules to form real-time settlement monitoring of the top plate. The conversion module, which is installed in the mounting frame, is used to control the monitoring end of the monitoring module, so that the monitoring module can monitor the settlement and deformation of the roadway roof at multiple points or on a surface through the three sets of support modules.

2. The underground mine roadway roof settlement and deformation monitoring device according to claim 1, characterized in that: The support module includes a telescopic tube connected to the mounting frame, and a support plate is hinged to the telescopic end of the telescopic tube. The conversion module includes a conversion cylinder fixed inside the mounting bracket; The detection end of the monitoring module is connected to the telescopic pipes of the three support modules through a conversion cylinder.

3. The underground mine roadway roof settlement and deformation monitoring device according to claim 2, characterized in that: An annular plate is fixedly connected inside the conversion cylinder, and a conversion unit is rotatably connected inside the conversion cylinder; The bottom ends of the telescopic pipes in the three support modules are connected to the conversion unit via the upper annular plate; The monitoring module includes three monitoring terminals, and all three monitoring terminals are connected to the conversion unit through the upper ring plate.

4. The underground mine roadway roof settlement and deformation monitoring device according to claim 3, characterized in that: The conversion unit includes a cylindrical block rotatably connected inside the conversion cylinder, and the cylindrical block is located between two annular plates. The cylindrical block has a cavity and a through pipe inside. The cylindrical block has two collection cavities inside, and both collection cavities are connected to the inside of the through pipe.

5. The underground mine roadway roof settlement and deformation monitoring device according to claim 4, characterized in that: The bottom ends of the three telescopic tubes are all fixedly connected to connecting tubes. The bottom ends of two of the connecting tubes are fixedly connected to the annular plate above and are connected to the inside of the two tube cavities. The bottom end of the other connecting tube is rotatably connected to the top of the through tube by a sealing bushing. The monitoring module includes three test tubes. The top ends of two of the test tubes are fixedly connected to the annular plate below and communicate with the inside of the two tube cavities. The top end of the third test tube is rotatably connected to the bottom of the through pipe by a sealing bushing.

6. The underground mine roadway roof settlement and deformation monitoring device according to claim 5, characterized in that: The three telescopic tubes are arranged in a fan shape, with the telescopic tube in the middle being fixedly connected to the mounting frame, and the telescopic tubes on both sides being connected to the mounting frame in an arc-shaped sliding manner via sliding blocks. The connecting tubes at the bottom of the two telescopic tubes are flexible telescopic hoses.

7. The underground mine roadway roof settlement and deformation monitoring device according to claim 6, characterized in that: The telescopic pipes on both sides are equipped with reinforcement units, which are used to reinforce the two support modules after the angle is adjusted.

8. The underground mine roadway roof settlement and deformation monitoring device according to claim 5, characterized in that: The three tubes under test each contain a piston block, and all three tubes are made of transparent material. The mounting bracket is equipped with a camera acquisition group for monitoring the displacement of the piston blocks.

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