A device and method for monitoring the movement and deformation of overburden after filling of coal mine goaf

Abstract

The present invention belongs to the field of safety monitoring technology, and in particular to a device and method for monitoring the movement and deformation of overburden after filling of a coal mine goaf. During monitoring, the monitoring effect of the monitoring device on the movement and deformation of the overburden is not comprehensive enough. Therefore, when used for monitoring, the monitoring data is prone to deviate from the actual degree of deformation, thereby causing safety hazards. The following scheme is proposed, including a monitoring casing, wherein the outer wall of the monitoring casing is provided with a lateral monitoring module, and the outer wall of the monitoring casing is provided with a plurality of movable openings, and the outer wall of the monitoring casing is provided with a plurality of external notches. The device and method for monitoring the movement and deformation of overburden after filling of a coal mine goaf disclosed in the present invention have the function of increasing the monitoring effect. When used, the device can synchronously monitor the lateral and longitudinal movement and deformation of the overburden to increase the monitoring effect. At the same time, the lateral monitoring can be multi-directional, which increases the comprehensiveness of the monitoring when the device is used.

Description

Technical Field

[0001] The present invention relates to the technical field of safety monitoring, and in particular to a device and method for monitoring the movement and deformation of overburden after filling of a coal mine goaf. Background Art

[0002] Goafs are "holes" created beneath the surface by human excavation or natural geological movements. The existence of goafs poses great safety issues to mine production, as both personnel and mechanical equipment may fall into the goaf and be injured.

[0003] Since underground goafs are highly hidden, have poor regularity in spatial distribution characteristics, and are difficult to predict the collapse of the goaf roof, how to quantitatively evaluate the distribution range, spatial morphological characteristics, and collapse conditions of underground goafs has always been a key technical problem that has plagued engineering and technical personnel in evaluating the potential hazards of goafs and reasonably determining treatment measures for goafs.

[0004] Goaf filling is to use waste rock stripped from the open-pit on the surface, waste rock from underground mining or tailings from ore dressing as the main filling aggregate, and to fill the filling material by gravity (or pressure) into the goaf through the boreholes, skylights or filling pipes in the goaf. Using the filling material to support the surrounding rock can slow down or prevent the deformation of the surrounding rock to keep it relatively stable.

[0005] After the existing goaf is filled, it is still necessary to monitor the movement and deformation degree of the overburden rock on the upper layer. However, during the monitoring, the monitoring device is not comprehensive enough in monitoring the movement and deformation of the overburden rock. Therefore, when monitoring, the monitoring data is prone to deviate from the actual deformation degree, thus causing safety hazards. Summary of the invention

[0006] The present invention discloses a device and method for monitoring the movement and deformation of overburden after filling of a coal mine goaf, aiming to solve the technical problem that the existing goaf in the background technology still needs to monitor the movement and deformation degree of the overburden in its upper layer after filling, but when monitoring, the monitoring effect of the monitoring device on the movement and deformation of the overburden is not comprehensive enough. Therefore, when used for monitoring, the monitoring data is easily deviated from the actual deformation degree, thereby causing safety hazards.

[0007] The present invention proposes a device for monitoring the movement and deformation of overburden after filling of a coal mine goaf, comprising a monitoring casing, the outer wall of which is provided with a transverse monitoring module, the outer wall of which is provided with a plurality of movable openings, the outer wall of which is provided with a plurality of external notches, the transverse monitoring module comprising a plurality of mounting brackets, the plurality of mounting brackets being fixedly connected to the outer wall of the monitoring casing, the outer wall of the monitoring casing being fixedly connected with a mounting ring seat, the mounting ring seat being provided with a supporting and fixing module, the top of the monitoring casing being fixedly connected with a scale ring frame, and a monitoring auxiliary module being provided inside the monitoring casing.

[0008] By providing a monitoring casing, a transverse monitoring module, a movable opening, an external notch, a mounting ring seat, a supporting and fixing module, a calibrated ring frame and a monitoring auxiliary module, the external notch is used to cooperate with the transverse monitoring module to monitor the transverse movement and deformation of the overburden when in use, and the transverse monitoring module can monitor multiple transverse directions when in use, thereby increasing the comprehensiveness of the monitoring of the device when in use and meeting the monitoring and use requirements of the device; the supporting and fixing module is used to support and fix the monitoring casing when in use, so as to avoid tipping or shifting of the device during monitoring and use, so as to ensure the monitoring and use of the device, thereby meeting the use requirements of the device; the calibrated ring frame is used to cooperate with the monitoring auxiliary module to monitor the longitudinal movement and deformation of the overburden when in use, and the monitoring auxiliary module can monitor the sinking movement and deformation of the overburden when in use, thereby further increasing the monitoring effect of the device and further meeting the monitoring and use requirements of the device.

[0009] In a preferred solution, the inner walls on both sides of the multiple mounting brackets are movably connected to the same mounting shaft rod, the outer walls of the multiple mounting shaft rods are fixedly connected to the guide wheel 2, and the outer walls of the multiple mounting shaft rods are movably connected to the mounting frames, the inner walls on both sides of the multiple mounting frames are fixedly connected to the same inner plate, the outer walls on one side of the multiple inner plates are fixedly connected to three pressure spring rods, one end of the three pressure spring rods on the same inner plate are fixedly connected to the same connecting seat, and the outer walls on one side of the multiple connecting seats are fixedly connected to the mounting seats; the tops of the multiple mounting seats are provided with threaded holes, the inner walls of the multiple threaded holes are movably connected to fixing screws, the bottoms of the multiple mounting frames are fixedly connected to the limiting brackets, the outer walls on one side of the multiple limiting brackets are in contact with the outer wall of the monitoring casing, and the inner wall of the monitoring casing is fixedly connected to two mounting plates, and the outer walls on the opposite sides of the two mounting plates are fixedly connected to the same A guide wheel frame; a plurality of mounting rods are fixedly connected to the guide wheel frame, the outer walls of the plurality of mounting rods are movably connected to guide wheel one, the outer walls of one side of the plurality of connecting seats are fixedly connected to connecting cables, one ends of the plurality of connecting cables are fixedly connected to connecting pieces, the plurality of connecting pieces are located inside the monitoring casing, and the outer walls of the plurality of connecting cables are respectively in contact with the inner walls of the plurality of guide wheels one and two, a plurality of circular holes are provided at the bottom of one of the mounting plates, and the plurality of connecting cables are respectively located inside the plurality of circular holes; the bottoms of the plurality of connecting pieces are fixedly connected to telescopic spring rods, the bottom ends of the plurality of telescopic spring rods are fixedly connected to the same fixed plate, the fixed plate is fixedly connected to the inner wall of the monitoring casing, and the outer walls of the plurality of connecting pieces are fixedly connected to connecting plates, the plurality of connecting plates are respectively located inside the plurality of movable openings, one ends of the plurality of connecting plates are fixedly connected to scale ring plates, and the plurality of scale ring plates are located outside the monitoring casing.

[0010] By providing a lateral monitoring module, the lateral monitoring module can perform monitoring in multiple lateral directions when in use, thereby increasing the comprehensiveness of the monitoring of the device when in use, and further increasing the monitoring accuracy of the device when monitoring, and when monitoring, by performing monitoring in multiple lateral directions when the overburden undergoes lateral movement and deformation, the monitoring data in multiple lateral directions can be analyzed in coordination with each other, so as to further increase the monitoring accuracy of the device when in use and improve the use effect of the device.

[0011] In a preferred embodiment, the monitoring auxiliary module includes a tension spring, which is fixedly connected to the top of one of the mounting plates, and a fixing ring is fixedly connected to the top of the tension spring, and a monitoring vertical rod is fixedly connected to the inner wall of the fixing ring, and the monitoring vertical rod is located between the plurality of telescopic spring rods, and a plurality of engraved rings are provided on the outer wall of the monitoring vertical rod, and a connecting plate is fixedly connected to the bottom end of the monitoring vertical rod, and a plurality of through holes are provided on the top of the connecting plate, and the plurality of telescopic spring rods are respectively located inside the plurality of through holes, and three connecting plates are fixedly connected to the bottom of the connecting plate, and the bottom ends of the three connecting plates are fixedly connected to the same bottom measuring plate, and the bottom measuring plate is located below the monitoring sleeve; a mounting ring is fixedly connected to the inner wall of the monitoring sleeve, and an air pump is fixedly connected to the inner wall of the mounting ring frame, and the air pump is located between the three connecting plates, and a connecting bin is fixedly connected to the output end of the air pump, and a plurality of connecting pipes are fixedly connected to the outer wall of the connecting bin, and the output ends of the three connecting pipes in the same horizontal plane are all fixedly connected to the same sealing airbag, and a plurality of through openings are provided on the outer wall of the monitoring sleeve, and the plurality of connecting pipes are respectively located inside the plurality of through openings.

[0012] By providing a monitoring auxiliary module, the monitoring auxiliary module can monitor the sinking, movement and deformation of the overburden when in use, further increasing the comprehensiveness of the monitoring of the device, thereby further increasing the monitoring effect of the device, and the monitoring auxiliary module can seal the monitoring holes when the device is installed when in use, thereby preventing external factors such as rain from affecting the longitudinal sinking and deformation of the overburden through the monitoring holes during subsequent monitoring, thereby increasing the use effect and diversity of the device when in use.

[0013] In a preferred solution, the supporting and fixing module comprises three fixing rods, the three fixing rods are movably connected to the mounting ring seat, the outer walls of the three fixing rods are fixedly connected to the supporting rod frames, the outer walls of one side of the three supporting rod frames are provided with mounting openings, the inner walls on both sides of the three mounting openings are movably connected to the same connecting rod member, and the three connecting rods are movably connected to the mounting ring seat, and the outer walls of the connecting rods and the outer walls of the connecting rod members on the same vertical plane are movably connected to the same electric telescopic rod; the tops of the three supporting rod frames are fixedly connected to negative pressure pumps, the input ends of the three negative pressure pumps are fixedly connected to two connecting pipes, the input ends of the multiple connecting pipes are fixedly connected to fixed suction cups, the tops of the three supporting rod frames are provided with two mounting holes, the multiple fixing suction cups are respectively located inside the multiple mounting holes, and the tops of the three supporting rod frames are fixedly connected to two mounting sleeves, the top inner walls of the multiple mounting sleeves are fixedly connected to pressure springs, the bottom ends of the multiple pressure springs are fixedly connected to the tops of the multiple fixing suction cups, and the multiple fixing suction cups are respectively located inside the multiple mounting sleeves.

[0014] By providing a supporting and fixing module, the supporting and fixing module can assist in supporting and fixing the device when in use, so as to prevent the device from tipping over or shifting due to external factors during use, thereby preventing the device from being damaged, etc., thereby increasing the use effect of the device. At the same time, the supporting and fixing module can increase the stability during monitoring use by supporting and fixing the device, further ensuring the accuracy of the monitoring results and ensuring the monitoring use effect of the device.

[0015] A method for monitoring the movement and deformation of overburden after filling of a coal mine goaf, using the above-mentioned monitoring device for monitoring the movement and deformation of overburden after filling of a coal mine goaf, comprises the following steps:

[0016] Step 1: When in use, the overburden above the goaf is drilled and preliminarily set up, and the device is set inside the monitoring hole. At this time, the monitoring auxiliary module is started, and the monitoring hole is sealed through the monitoring auxiliary module. At the same time, the monitoring auxiliary module is used for longitudinal monitoring to monitor the longitudinal movement and deformation of the overburden;

[0017] Step 2: After the longitudinal setting, start the transverse monitoring module, unfold the transverse monitoring module, and fix the fixing screw on the overburden rock for transverse monitoring to monitor the transverse movement and deformation of the overburden rock;

[0018] Step 3: After the device is installed, start the support and fixation module, support the monitoring casing through the support and fixation module, and fix it after support.

[0019] From the above, it can be seen that the device for monitoring the movement and deformation of overburden after filling of coal mine goaf provided by the present invention has the function of increasing the monitoring effect. When in use, the device can synchronously monitor the lateral and longitudinal movement and deformation of the overburden to increase the monitoring effect. At the same time, the lateral monitoring can perform multi-directional monitoring, which increases the comprehensiveness of the monitoring when the device is used. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the overall structure of a device for monitoring the movement and deformation of overburden after filling of a coal mine goaf proposed by the present invention;

[0021] Figure 2 This is a schematic diagram of the overall front view structure of a device for monitoring the movement and deformation of overburden after filling of a coal mine goaf proposed by the present invention;

[0022] Figure 3 A schematic diagram of the cross-sectional structure of a monitoring casing of a device for monitoring the movement and deformation of overburden rocks after filling of a coal mine goaf proposed by the present invention;

[0023] Figure 4 This is a schematic structural diagram of a lateral monitoring module of a device for monitoring movement and deformation of overburden rock after filling of a coal mine goaf proposed by the present invention;

[0024] Figure 5 A schematic diagram of the combined structure of a telescopic spring rod and a connecting piece of a device for monitoring the movement and deformation of overburden rock after filling of a coal mine goaf proposed by the present invention;

[0025] Figure 6 This is a partial structural schematic diagram of a lateral monitoring module of a device for monitoring movement and deformation of overburden rock after filling of a coal mine goaf proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a monitoring auxiliary module of a device for monitoring the movement and deformation of overburden rocks after filling of a coal mine goaf proposed by the present invention;

[0027] Figure 8 A schematic diagram of the cross-sectional structure of a sealing airbag of a device for monitoring the movement and deformation of overburden rock after filling of a coal mine goaf proposed by the present invention;

[0028] Fig. 9 This is a structural schematic diagram of a support and fixing module of a device for monitoring movement and deformation of overburden rock after filling of a coal mine goaf proposed by the present invention;

[0029] Fig.10 This is a schematic diagram of the partial structural breakdown of the supporting and fixing module of a device for monitoring the movement and deformation of overburden after filling of a coal mine goaf proposed by the present invention.

[0030] In the figure: 1. monitoring sleeve; 2. supporting and fixing module; 201. fixing rod; 202. connecting rod; 203. electric telescopic rod; 204. supporting rod frame; 205. mounting port; 206. connecting rod; 207. connecting pipe; 208. negative pressure pump; 209. fixing suction cup; 210. mounting sleeve frame; 211. pressure spring; 3. scale ring frame; 4. mounting ring seat; 5. lateral monitoring module; 501. mounting plate; 502. guide wheel frame; 503. connecting cable; 504. mounting frame; 505. mounting bracket; 506. fixing plate; 507. telescopic spring rod; 508. connecting piece; 509. scale ring plate; 510. connecting piece; 511. Mounting rod; 512. Guide wheel one; 513. Round hole; 514. Mounting shaft rod; 515. Limit bracket; 516. Pressure spring rod; 517. Fixing screw; 518. Mounting seat; 519. Connecting seat; 520. Inner plate; 521. Guide wheel two; 6. Monitoring auxiliary module; 601. Bottom measuring plate; 602. Sealing airbag; 603. Connecting plate; 604. Connecting plate; 605. Monitoring vertical rod; 606. Tension spring; 607. Fixing ring; 608. Engraved ring; 609. Perforation; 610. Air pump; 611. Mounting ring frame; 612. Connecting chamber; 613. Connecting pipe; 7. External notch; 8. Movable opening; 9. Through opening. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] The present invention discloses a device for monitoring the movement and deformation of overburden after filling of a coal mine goaf. The monitoring device is not comprehensive enough in its monitoring effect on the movement and deformation of overburden. Therefore, when used for monitoring, the monitoring data is prone to deviate from the actual degree of deformation, thereby causing a potential safety hazard.

[0033] Reference Figure 1-Figure 10 A device for monitoring the movement and deformation of overburden after filling of a coal mine goaf comprises a monitoring casing 1, a transverse monitoring module 5 is arranged on the outer wall of the monitoring casing 1, a plurality of movable openings 8 are opened on the outer wall of the monitoring casing 1, a plurality of external notches 7 are opened on the outer wall of the monitoring casing 1, the transverse monitoring module 5 comprises a plurality of mounting brackets 505, the plurality of mounting brackets 505 are all fixedly connected to the outer wall of the monitoring casing 1, a mounting ring seat 4 is fixedly connected to the outer wall of the monitoring casing 1, a supporting and fixing module 2 is arranged on the mounting ring seat 4, a scale ring frame 3 is fixedly connected to the top of the monitoring casing 1, and a monitoring auxiliary module 6 is arranged inside the monitoring casing 1.

[0034] Specifically, the outer notch 7 is used to cooperate with the lateral monitoring module 5 to monitor the lateral movement and deformation of the overburden when in use. The lateral monitoring module 5 can monitor multiple lateral directions when in use, thereby increasing the comprehensiveness of the monitoring of the device when in use and meeting the monitoring and use requirements of the device; the supporting and fixing module 2 is used to support and fix the monitoring casing 1 when in use to avoid the device from tipping over or shifting during monitoring and use, so as to ensure the monitoring and use of the device, thereby meeting the use requirements of the device; the scale ring frame 3 is used to cooperate with the monitoring auxiliary module 6 to monitor the longitudinal movement and deformation of the overburden when in use, and the monitoring auxiliary module 6 can monitor the sinking movement and deformation of the overburden when in use, thereby further increasing the monitoring effect of the device and further meeting the monitoring and use requirements of the device.

[0035] Reference Figure 1-Figure 6In a preferred embodiment, the inner walls on both sides of the plurality of mounting brackets 505 are connected to the same mounting shaft rod 514 through bearings, the outer walls of the plurality of mounting shaft rods 514 are fixedly connected to the guide wheel 2 521, and the outer walls of the plurality of mounting shaft rods 514 are connected to the mounting frame 504 through bearings, the inner walls on both sides of the plurality of mounting frames 504 are fixedly connected to the same inner plate 520, the outer walls on one side of the plurality of inner plates 520 are fixedly connected to three pressure spring rods 516, and one end of the three pressure spring rods 516 on the same inner plate 520 is fixedly connected There is a same connecting seat 519, and one side outer wall of multiple connecting seats 519 is fixedly connected with a mounting seat 518; the tops of multiple mounting seats 518 are provided with threaded holes, and the inner walls of multiple threaded holes are connected with fixing screws 517 through threads, and the bottoms of multiple mounting frames 504 are fixedly connected with a limiting bracket 515, and one side outer wall of multiple limiting brackets 515 is in contact with the outer wall of the monitoring casing 1, and the inner wall of the monitoring casing 1 is fixedly connected with two mounting plates 501, and the outer walls of the opposite sides of the two mounting plates 501 are fixedly connected with the same guide wheel frame 50 2; A plurality of mounting rods 511 are fixedly connected to the guide wheel frame 502, and the outer walls of the plurality of mounting rods 511 are connected to the guide wheel 1 512 through bearings, and the outer walls of one side of the plurality of connecting seats 519 are fixedly connected to the connecting cables 503, and one end of the plurality of connecting cables 503 is fixedly connected to the connecting piece 508, and the plurality of connecting pieces 508 are all located inside the monitoring casing 1, and the outer walls of the plurality of connecting cables 503 are respectively in contact with the inner walls of the plurality of guide wheels 1 512 and the guide wheel 2 521, and a plurality of circular holes 513 are opened at the bottom of one of the mounting plates 501, and the plurality of connecting cables 503 are fixedly connected to the inner walls of the plurality of guide wheels 1 512 and the guide wheel 2 521, and the plurality of connecting cables 503 are fixedly connected to the inner walls of the plurality of guide wheels 1 512 and the guide wheel 2 521, and the plurality of circular holes 513 are opened at the bottom of the mounting plates 501, and the plurality of connecting cables 503 are fixedly connected to the inner walls of the plurality of guide wheels 1 512 and the guide wheel 2 52 ... outer walls of the plurality of connecting cables 503, and the plurality of connecting cables 503 are fixedly connected to the inner walls of the plurality of guide wheels 1 512 and the guide wheel 2 521, and the plurality of connecting cables The connecting cables 503 are respectively located inside the multiple circular holes 513; the bottoms of the multiple connecting parts 508 are fixedly connected with telescopic spring rods 507, the bottom ends of the multiple telescopic spring rods 507 are fixedly connected with the same fixed plate 506, the fixed plate 506 is fixedly connected to the inner wall of the monitoring sleeve 1, and the outer walls of the multiple connecting parts 508 are fixedly connected with connecting pieces 510, the multiple connecting pieces 510 are respectively located inside the multiple movable ports 8, one end of the multiple connecting pieces 510 is fixedly connected with a scale ring plate 509, and the multiple scale ring plates 509 are located outside the monitoring sleeve 1.

[0036] Specifically, when used for horizontal monitoring, the mounting frame 504 is rotated to expand the mounting frame 504 until the limit bracket 515 contacts the outer wall of the monitoring sleeve 1. At this time, the pressure spring rod 516 can drive the connecting seat 519 and the mounting seat 518 to move. When they move to a certain position, the fixing screw 517 is installed on the mounting seat 518 and connected to the overburden to fix the position of the mounting seat 518. At the same time, as the mounting frame 504 is expanded and the connecting seat 519 moves, the connecting seat 519 can pull the connecting cable 503, so that the connecting cable 503 pulls the connecting piece 508, and then drives the telescopic spring rod 507 to deform through the connecting piece 508, and at the same time changes the position of the scale ring plate 509 until the installation is completed. At this time, the position of the scale ring plate 509 is recorded. When the overburden rock moves and deforms laterally, the overburden rock will drive the fixing screw 517 to move, and then drive the mounting seat 518 and the connecting seat 519 to move. At this time, the connecting seat 519 and the telescopic spring rod 507 will drive the connecting cable 503 to change, and then change the positions of multiple scale ring plates 509, so as to detect the lateral movement and deformation of the overburden rock;

[0037] In a specific application scenario, the lateral monitoring module 5 is suitable for the lateral movement and deformation monitoring link of the overburden, that is, the lateral monitoring module 5 can perform monitoring in multiple lateral directions when in use, thereby increasing the comprehensiveness of the monitoring of the device when in use, and further increasing the monitoring accuracy of the device when monitoring, and when monitoring, by performing monitoring in multiple lateral directions when the overburden undergoes lateral movement and deformation, the monitoring data in multiple lateral directions can be analyzed in coordination with each other, so as to further increase the monitoring accuracy of the device when in use and improve the use effect of the device.

[0038] Reference Figure 1 , Figure 2 , Figure 3 , Figure 7 and Figure 8In a preferred embodiment, the monitoring auxiliary module 6 includes a tension spring 606, which is fixedly connected to the top of one of the mounting plates 501, and the top of the tension spring 606 is fixedly connected to a fixing ring 607, and the inner wall of the fixing ring 607 is fixedly connected to a monitoring vertical rod 605, and the monitoring vertical rod 605 is located between the plurality of telescopic spring rods 507, and the outer wall of the monitoring vertical rod 605 is provided with a plurality of engraved rings 608, and the bottom end of the monitoring vertical rod 605 is fixedly connected to a connecting plate 604, and the top of the connecting plate 604 is provided with a plurality of through holes 609, and the plurality of telescopic spring rods 507 are respectively located inside the plurality of through holes 609, and the bottom of the connecting plate 604 is fixedly connected There are three connecting plates 603, and the bottom ends of the three connecting plates 603 are fixedly connected to the same bottom measuring plate 601, and the bottom measuring plate 601 is located below the monitoring sleeve 1; the inner wall of the monitoring sleeve 1 is fixedly connected to a mounting ring, and the inner wall of the mounting ring frame 611 is fixedly connected to an air pump 610, and the air pump 610 is located between the three connecting plates 603, and the output end of the air pump 610 is fixedly connected to a connecting bin 612, and the outer wall of the connecting bin 612 is fixedly connected to a plurality of connecting tubes 613, and the output ends of the three connecting tubes 613 in the same horizontal plane are all fixedly connected to the same sealing airbag 602, and the outer wall of the monitoring sleeve 1 is provided with a plurality of through openings 9, and the plurality of connecting tubes 613 are respectively located inside the plurality of through openings 9.

[0039] Specifically, when in use, the overburden above the goaf is perforated and preliminarily set up, and the device is set inside the monitoring hole. At this time, the air pump 610 is started, and the gas is transported to the inside of the connecting chamber 612 through the air pump 610, and then the gas inside the connecting chamber 612 is transported to the inside of the sealing airbag 602 through the connecting pipe 613, so that the sealing airbag 602 expands, and then the gap between the inner wall of the monitoring hole and the outer wall of the monitoring casing 1 is sealed. After that, when the overburden sinks and moves longitudinally and deforms, the tension spring 606 will drive the fixed ring 607 to descend, and then drive the monitoring vertical rod 605 to move through the fixed ring 607, and then drive the connecting plate 603 and the bottom measuring plate 601 to descend, so as to ensure that the bottom measuring plate 601 moves with the sinking of the overburden. At this time, the longitudinal movement and deformation of the overburden can be monitored through the scale ring frame 3 and the engraved ring 608 on the monitoring vertical rod 605;

[0040] In a specific application scenario, the monitoring auxiliary module 6 is suitable for the monitoring link of the sinking, movement and deformation of the overburden rock, that is, the monitoring auxiliary module 6 can monitor the sinking, movement and deformation of the overburden rock when in use, further increasing the comprehensiveness of the monitoring of the device, thereby further increasing the monitoring effect of the device, and when in use, the monitoring auxiliary module 6 can seal the monitoring holes when the device is installed, thereby preventing external factors such as rain from affecting the longitudinal sinking and deformation of the overburden rock through the monitoring holes during the subsequent monitoring process, thereby increasing the use effect and diversity of the device when in use.

[0041] Reference Figure 1 , Figure 2 , Fig. 9 and Fig.10 In a preferred embodiment, the support and fixing module 2 includes three fixing rods 201, and the three fixing rods 201 are connected to the mounting ring seat 4 through bearings. The outer walls of the three fixing rods 201 are fixedly connected to the support rod frame 204, and the outer walls of one side of the three support rod frames 204 are provided with mounting openings 205. The inner walls on both sides of the three mounting openings 205 are connected to the same connecting rod member 206 through bearings, and the mounting ring seat 4 is connected to three connecting rods 202 through bearings, and the outer walls of the connecting rods 202 and the outer walls of the connecting rod member 206 on the same vertical plane are connected to the same electric telescopic rod 203 through bearings; the tops of the three support rod frames 204 are fixed A negative pressure pump 208 is connected, and the input ends of the three negative pressure pumps 208 are fixedly connected to two connecting pipes 207, and the input ends of the multiple connecting pipes 207 are fixedly connected to fixed suction cups 209. The tops of the three support rod racks 204 are each provided with two mounting holes, and the multiple fixed suction cups 209 are respectively located inside the multiple mounting holes, and the tops of the three support rod racks 204 are each fixedly connected to two mounting sleeves 210, and the top inner walls of the multiple mounting sleeves 210 are fixedly connected to pressure springs 211, and the bottom ends of the multiple pressure springs 211 are fixedly connected to the tops of the multiple fixed suction cups 209, and the multiple fixed suction cups 209 are respectively located inside the multiple mounting sleeves 210.

[0042] Specifically, after the device is installed, the electric telescopic rod 203 is started, and the electric telescopic rod 203 is extended and retracted, thereby driving the support rod frame 204 and the fixed rod 201 to rotate, so that the support rod frame 204 is unfolded to support the monitoring sleeve 1. At this time, the fixed suction cup 209 can contact the ground under the drive of the pressure spring 211, and then the negative pressure pump 208 is started. The negative pressure pump 208 discharges the gas inside the fixed suction cup 209 through the connecting pipe 207, so that the fixed suction cup 209 is adsorbed and fixed on the ground, and then the device is fixed to ensure the stability of the device monitoring;

[0043] In a specific application scenario, the support and fixing module 2 is suitable for the fixing link of the monitoring equipment, that is, the support and fixing module 2 can assist in supporting and fixing the device when in use, so as to prevent the device from tipping over or shifting due to external factors during use, thereby preventing the device from being damaged, etc., thereby increasing the use effect of the device. At the same time, the support and fixing module 2 can increase the stability of the device during monitoring by supporting and fixing the device, further ensuring the accuracy of the monitoring results and ensuring the monitoring effect of the device.

[0044] A method for monitoring the movement and deformation of overburden after filling of a coal mine goaf, using the above-mentioned monitoring device for monitoring the movement and deformation of overburden after filling of a coal mine goaf, comprises the following steps:

[0045] Step 1: When in use, the overburden above the goaf is drilled and preliminarily set up, and the device is set inside the monitoring hole. At this time, the air pump 610 is started, and the gas is transported to the inside of the connecting chamber 612 through the air pump 610, and then the gas inside the connecting chamber 612 is transported to the inside of the sealing airbag 602 through the connecting pipe 613, so that the sealing airbag 602 expands, and then the gap between the inner wall of the monitoring hole and the outer wall of the monitoring casing 1 is sealed. After that, when the overburden sinks and moves longitudinally and deforms, the tension spring 606 will drive the fixed ring 607 to descend, and then drive the monitoring vertical rod 605 to move through the fixed ring 607, and then drive the connecting plate 603 and the bottom measuring plate 601 to descend, so as to ensure that the bottom measuring plate 601 moves with the sinking of the overburden. At this time, the longitudinal movement and deformation of the overburden can be monitored through the scale ring frame 3 and the engraved ring 608 on the monitoring vertical rod 605;

[0046] Step 2: After the longitudinal setting, when using for horizontal monitoring, rotate the mounting frame 504 to expand the mounting frame 504 until the limit bracket 515 contacts the outer wall of the monitoring sleeve 1. At this time, the pressure spring rod 516 can drive the connecting seat 519 and the mounting seat 518 to move. When they move to a certain position, the fixing screw 517 is installed on the mounting seat 518 and connected to the overburden to fix the position of the mounting seat 518. At the same time, as the mounting frame 504 is expanded and the connecting seat 519 moves, the connecting seat 519 can pull the connecting cable 503, so that the connecting cable 503 The connecting cable 503 pulls the connecting piece 508, and then the connecting piece 508 drives the telescopic spring rod 507 to deform, and at the same time changes the position of the scale ring plate 509 until the installation is completed. At this time, the position of the scale ring plate 509 is recorded. When the overburden rock moves and deforms laterally, the overburden rock will drive the fixing screw 517 to move, and then drive the mounting seat 518 and the connecting seat 519 to move. At this time, the connecting seat 519 and the telescopic spring rod 507 will drive the connecting cable 503 to change, and then change the positions of multiple scale ring plates 509, so as to detect the lateral movement and deformation of the overburden rock;

[0047] Step three, after the device is installed, start the electric telescopic rod 203, and the electric telescopic rod 203 is extended and retracted, thereby driving the support rod frame 204 and the fixed rod 201 to rotate, so that the support rod frame 204 is unfolded to support the monitoring sleeve 1. At this time, the fixed suction cup 209 can contact the ground driven by the pressure spring 211, and then start the negative pressure pump 208. The negative pressure pump 208 discharges the gas inside the fixed suction cup 209 through the connecting pipe 207, so that the fixed suction cup 209 is adsorbed and fixed on the ground, and then the device is fixed to ensure the stability of the device monitoring.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for monitoring the movement and deformation of overburden after filling of a coal mine goaf, comprising a monitoring casing (1), characterized in that: The outer wall of the monitoring sleeve (1) is provided with a transverse monitoring module (5), and the outer wall of the monitoring sleeve (1) is provided with a plurality of movable openings (8), and the outer wall of the monitoring sleeve (1) is provided with a plurality of external notches (7), the transverse monitoring module (5) comprises a plurality of mounting brackets (505), and the plurality of mounting brackets (505) are all fixedly connected to the outer wall of the monitoring sleeve (1), the outer wall of the monitoring sleeve (1) is fixedly connected with a mounting ring seat (4), and a supporting and fixing module (2) is provided on the mounting ring seat (4), the top of the monitoring sleeve (1) is fixedly connected with a scale ring frame (3), and a monitoring auxiliary module (6) is provided inside the monitoring sleeve (1); The inner walls on both sides of the plurality of mounting brackets (505) are movably connected to the same mounting shaft rod (514), the outer walls of the plurality of mounting shaft rods (514) are fixedly connected to the guide wheel 2 (521), and the outer walls of the plurality of mounting shaft rods (514) are movably connected to the mounting frame (504), the inner walls on both sides of the plurality of mounting frames (504) are fixedly connected to the same inner plate (520), the outer walls on one side of the plurality of inner plates (520) are fixedly connected to three pressure spring rods (516), one end of the three pressure spring rods (516) on the same inner plate (520) are fixedly connected to the same connecting seat (519), and the outer walls on one side of the plurality of connecting seats (519) are fixedly connected to the mounting seat (518); The tops of the plurality of mounting seats (518) are each provided with a threaded hole, the inner walls of the plurality of threaded holes are each movably connected to a fixing screw (517), the bottoms of the plurality of mounting frames (504) are each fixedly connected to a limiting bracket (515), one side outer wall of the plurality of limiting brackets (515) is in contact with the outer wall of the monitoring sleeve (1), and the inner wall of the monitoring sleeve (1) is fixedly connected to two mounting plates (501), and the outer walls of the opposite sides of the two mounting plates (501) are fixedly connected to the same guide wheel frame (502); The guide wheel frame (502) is fixedly connected to a plurality of mounting rods (511), the outer walls of the plurality of mounting rods (511) are movably connected to a guide wheel one (512), the outer walls of one side of the plurality of connection seats (519) are fixedly connected to a connection cable (503), one end of the plurality of connection cables (503) is fixedly connected to a connection piece (508), the plurality of connection pieces (508) are located inside the monitoring sleeve (1), and the outer walls of the plurality of connection cables (503) are respectively in contact with the inner walls of the plurality of guide wheels one (512) and the guide wheel two (521), a plurality of circular holes (513) are opened at the bottom of one of the mounting plates (501), and the plurality of connection cables (503) are respectively located inside the plurality of circular holes (513); The bottoms of the plurality of connecting members (508) are all fixedly connected to telescopic spring rods (507), the bottom ends of the plurality of telescopic spring rods (507) are all fixedly connected to the same fixed plate (506), the fixed plate (506) is fixedly connected to the inner wall of the monitoring sleeve (1), and the outer walls of the plurality of connecting members (508) are all fixedly connected to connecting pieces (510), the plurality of connecting pieces (510) are respectively located inside the plurality of movable openings (8), one end of the plurality of connecting pieces (510) is all fixedly connected to a scale ring plate (509), and the plurality of scale ring plates (509) are all located outside the monitoring sleeve (1); The monitoring auxiliary module (6) comprises a tension spring (606), the tension spring (606) being fixedly connected to the top of one of the mounting plates (501), the top of the tension spring (606) being fixedly connected to a fixing ring (607), the inner wall of the fixing ring (607) being fixedly connected to a monitoring vertical rod (605), the monitoring vertical rod (605) being located between the plurality of telescopic spring rods (507), and the outer wall of the monitoring vertical rod (605) being provided with a plurality of engraved rings (608), The bottom end of the monitoring vertical rod (605) is fixedly connected to a connecting plate (604), a plurality of through holes (609) are formed on the top of the connecting plate (604), a plurality of telescopic spring rods (507) are respectively located inside the plurality of through holes (609), the bottom of the connecting plate (604) is fixedly connected to three connecting plate members (603), the bottom ends of the three connecting plate members (603) are fixedly connected to the same bottom measuring plate (601), and the bottom measuring plate (601) is located below the monitoring casing (1); The inner wall of the monitoring sleeve (1) is fixedly connected to a mounting ring, the inner wall of the mounting ring frame (611) is fixedly connected to an air pump (610), the air pump (610) is located between the three connecting plate members (603), the output end of the air pump (610) is fixedly connected to a connecting chamber (612), the outer wall of the connecting chamber (612) is fixedly connected to a plurality of connecting tubes (613), the output ends of the three connecting tubes (613) on the same horizontal plane are all fixedly connected to the same sealing air bag (602), and the outer wall of the monitoring sleeve (1) is provided with a plurality of through openings (9), the plurality of connecting tubes (613) are respectively located inside the plurality of through openings (9).

2. The device for monitoring the movement and deformation of overburden after filling of coal mine goaf according to claim 1 is characterized in that: The support and fixing module (2) comprises three fixing rods (201), the three fixing rods (201) are all movably connected to the mounting ring seat (4), the outer walls of the three fixing rods (201) are all fixedly connected to the support rod frame (204), one side outer wall of the three support rod frame (204) is provided with a mounting opening (205), the inner walls on both sides of the three mounting openings (205) are all movably connected to the same connecting rod member (206), and the mounting ring seat (4) is movably connected to three connecting rods (202), and the outer walls of the connecting rods (202) and the outer walls of the connecting rod member (206) on the same vertical plane are all movably connected to the same electric telescopic rod (203).

3. The device for monitoring the movement and deformation of overburden after filling of coal mine goaf according to claim 2 is characterized in that: The tops of the three support rod racks (204) are all fixedly connected to negative pressure pumps (208), the input ends of the three negative pressure pumps (208) are all fixedly connected to two connecting pipes (207), the input ends of the plurality of connecting pipes (207) are all fixedly connected to fixed suction cups (209), the tops of the three support rod racks (204) are all provided with two mounting holes, the plurality of fixed suction cups (209) are respectively located inside the plurality of mounting holes, and the tops of the three support rod racks (204) are all fixedly connected to two mounting sleeves (210), the top inner walls of the plurality of mounting sleeves (210) are all fixedly connected to pressure springs (211), the bottom ends of the plurality of pressure springs (211) are all fixedly connected to the tops of the plurality of fixed suction cups (209), and the plurality of fixed suction cups (209) are respectively located inside the plurality of mounting sleeves (210).

4. A method for monitoring the movement and deformation of overburden after filling of coal mine goaf, using the device for monitoring the movement and deformation of overburden after filling of coal mine goaf as described in claim 3, characterized in that: The steps include: Step 1: During use, the overburden above the goaf is drilled and preliminarily set up, and the device is set inside the monitoring hole. At this time, the monitoring auxiliary module (6) is started, and the monitoring hole is sealed by the monitoring auxiliary module (6). At the same time, the monitoring auxiliary module (6) is used for longitudinal monitoring to monitor the longitudinal movement and deformation of the overburden; Step 2: After the longitudinal setting, start the transverse monitoring module (5), unfold the transverse monitoring module (5), and fix the fixing screw (517) on the overburden rock for transverse monitoring to monitor the transverse movement and deformation of the overburden rock; Step 3: After the device is installed, the supporting and fixing module (2) is started, the monitoring sleeve (1) is supported by the supporting and fixing module (2), and then fixed after the support.

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