Deformation monitoring device for top plate in underground mine pit

Abstract

The invention relates to the technical field of deformation monitoring devices, in particular to an underground mine pit top plate deformation monitoring device which comprises a mounting vertical plate, a control assembly is arranged on the side face of the mounting vertical plate, a fixed bottom plate is arranged at the lower end of the mounting vertical plate, and a deformation monitoring mechanism for detecting whether a top plate is bent or not is arranged on the mounting vertical plate. A folding auxiliary mechanism which can reduce the size and facilitate transfer and a convenient moving mechanism are arranged on the fixed bottom plate, a monitoring protection mechanism for detecting the content of surrounding gas is arranged below the deformation monitoring mechanism, and the deformation monitoring mechanism comprises an arc-shaped steel frame fixedly mounted on the mounting vertical plate. According to the device, the deformation monitoring mechanism is arranged, a plurality of stress sites of the arched top plate can be automatically monitored in real time through mutual cooperation between a monitoring convex block and a telescopic assembly, a worker can be helped to rapidly and accurately position the deformation position of the top plate, accurate supporting is facilitated, and the safety of mining area operation is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of deformation monitoring devices, and in particular to a roof deformation monitoring device in an underground mine pit. Background Art

[0002] The stability and deformation strength of the pit roof will directly affect the safety of mining operations. Roof deformation refers to the shape change of the tunnel top structure due to various internal and external factors during the construction or operation of underground projects such as mines and tunnels, including bending, sinking, cracking and other phenomena. In order to ensure the safety of underground operations to the greatest extent, staff usually monitor the deformation strength of the pit roof on a regular basis.

[0003] However, most of the roof deformation detection in the existing technology is carried out by staff using monitoring instruments for fixed-point detection. It is impossible to continuously carry out all-round multi-point real-time monitoring of the arched roof. It is difficult to accurately support the deformed area as soon as the roof deforms. Moreover, the monitoring instrument needs to be frequently disassembled and assembled when transferred in the tunnel, which is time-consuming and labor-intensive. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a roof deformation monitoring device in an underground mine pit, which solves the technical problem that the monitoring instruments in the prior art cannot continuously perform multi-point real-time monitoring of the roof, and it is difficult to perform precise support in time. It has the advantage of being able to automatically monitor multiple stress points of the arched roof in real time, and can help workers achieve precise support.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a device for monitoring the deformation of the roof in an underground mine pit, comprising an installation vertical plate, a control component is arranged on the side of the installation vertical plate, a fixed bottom plate is arranged at the lower end of the installation vertical plate, a deformation monitoring mechanism for detecting whether the roof plate is bent is arranged on the installation vertical plate, a folding auxiliary mechanism and a convenient moving mechanism for reducing the volume and facilitating transfer are arranged on the fixed bottom plate, a monitoring and protection mechanism for detecting the surrounding gas content is arranged below the deformation monitoring mechanism, and in the process of using the deformation monitoring mechanism to monitor the deformation of the roof in the mine pit, the monitoring and protection mechanism will automatically detect gas in the surrounding environment to prevent gas in the environment The content is too high and there is a danger. The deformation monitoring mechanism includes a curved steel frame fixedly installed on the mounting vertical plate. A number of mounting brackets are evenly spaced at the lower end of the curved steel frame. A telescopic component is arranged on the mounting bracket. The telescopic component includes a circular cylinder. A sliding round rod is movably installed on the circular cylinder. One end of the sliding round rod extends into the interior of the circular cylinder, and the other end of the sliding round rod passes through the curved steel frame and is fixedly installed with a monitoring protrusion. A displacement sensor for measuring the moving distance of the monitoring protrusion is provided on the curved steel frame. When a local depression occurs in the top plate in the pit, the monitoring protrusion in contact with the depressed part of the top plate will move toward the curved steel frame, and the displacement sensor will monitor the moving distance in real time during the movement.

[0006] Preferably, a limiting circular block is fixedly installed at one end of the sliding circular rod extending into the circular cylinder, a buffer spring is arranged between the upper end of the limiting circular block and the inner wall of the circular cylinder, and an alarm device is arranged inside the circular cylinder. When the sliding circular rod moves, the limiting circular block will move synchronously, and when the limiting circular block contacts the alarm device, the alarm device will automatically sound an alarm.

[0007] Preferably, the arc-shaped steel frame matches the shape of the roof in the mine pit, and the monitoring protrusion is arc-shaped, thereby ensuring that the multiple monitoring protrusions can be in close contact with the roof in the mine pit respectively, thereby improving the monitoring effect.

[0008] Preferably, the folding auxiliary mechanism includes a mounting base fixedly mounted on a fixed bottom plate, a mounting vertical plate rotatably connected to the mounting base, a vertical slide groove is opened on the inner side wall of the mounting base, a limiting cross bar is movably mounted on the vertical slide groove, laser lights are symmetrically arranged on the mounting base, and a hydraulic support rod for adjusting the height of the arc-shaped steel frame is fixedly mounted on the upper end of the mounting vertical plate. When the hydraulic support rod is extended, the height of the arc-shaped steel frame will increase, and when the hydraulic support rod is shortened, the height of the arc-shaped steel frame will decrease, thereby adapting to mine tunnels of different heights.

[0009] Preferably, two limit cross bars are provided, and the two limit cross bars are respectively located on both sides of the mounting vertical plate. When the two limit cross bars are simultaneously located at the upper end of the vertical slide groove, the mounting vertical plate will be in a vertical state. When only one limit cross bar is located at the upper end of the vertical slide groove, the mounting vertical plate can rotate to the other side.

[0010] Preferably, the monitoring and protection mechanism includes a protective ring cover detachably mounted on an arc-shaped steel frame, a micro air pump is provided on one side of the protective ring cover, an exhaust circular pipe is provided on the other side of the protective ring cover, a gas sensor for detecting the gas content in the air is provided inside the protective ring cover, and a number of absorption square boxes are movably installed inside the protective ring cover. When the micro air pump is powered on, it will suck the air in the surrounding environment into the interior of the protective ring cover and discharge it outward through the exhaust circular pipe, thereby making the air in the tunnel flow, which can prevent the accumulation of gas to a certain extent.

[0011] Preferably, a driving motor for driving the absorption box to rotate is provided on the arc-shaped steel frame. Initially, the absorption box is parallel to the gas flow direction. When the gas concentration is too high, the absorption box will rotate ninety degrees under the action of the driving motor.

[0012] Preferably, air-intake powder is arranged inside the absorption box, and a plurality of exhaust holes are opened on the surface of the absorption box. The air-intake powder is a mixture of activated carbon and zeolite, and can effectively absorb gas in the air.

[0013] Preferably, the convenient moving mechanism includes a rectangular cavity opened at the lower end of the fixed bottom plate, a roller bracket is movably installed inside the rectangular cavity, a telescopic push rod for driving the roller bracket to move up and down is provided on the inner wall of the rectangular cavity, and a movable roller is rotatably connected to the roller bracket. During the deformation monitoring process, the roller bracket is located inside the rectangular cavity, and the fixed bottom plate will be fixed to the ground. When the device is transferred, the roller bracket will extend downward under the action of the telescopic push rod.

[0014] Preferably, support pulleys are symmetrically arranged on both sides of the mounting vertical plate. When the mounting vertical plate is rotated to a horizontal state, the support pulleys will contact the ground, thereby facilitating pushing by staff.

[0015] By means of the above technical solution, the present invention provides a device for monitoring roof deformation in an underground mine pit, which has at least the following beneficial effects:

[0016] 1. The present invention sets a deformation monitoring mechanism and utilizes the cooperation between the monitoring convex block and the telescopic assembly to automatically monitor multiple stress points of the arched roof in real time, which can help workers quickly and accurately locate the deformation position of the roof, facilitate precise support, and effectively ensure the safety of mining operations.

[0017] 2. The present invention sets up a deformation monitoring mechanism and utilizes the cooperation between the sliding round rod and the alarm device to automatically sound an alarm when the deformation amount reaches a certain value. After hearing the alarm, the staff will immediately strengthen the support of the area, which can effectively prevent landslides.

[0018] 3. The present invention provides a folding auxiliary mechanism and utilizes the cooperation between the limit cross bar and the hydraulic support rod to quickly adjust the height and state of the arc-shaped steel frame, making it convenient for workers to transfer and install the device in narrow alleys without disassembly, thereby achieving the effect of saving time and effort.

[0019] 4. The present invention provides a folding auxiliary mechanism and utilizes the cooperation between the mounting base and the laser light to form two parallel width light beams on both sides of the device, which can effectively prevent workers from colliding with the mounting vertical plates during the process of transporting materials in the tunnel, thereby avoiding damage to the device and ensuring the accuracy of deformation monitoring.

[0020] 5. The present invention sets up a monitoring and protection mechanism and utilizes the cooperation between the gas sensor and the absorption box to automatically monitor the gas concentration in the tunnel while monitoring the roof deformation, and can effectively absorb the gas in the air while the air circulates, which can effectively reduce the concentration of gas in the tunnel, thereby ensuring the life safety of the workers in the tunnel.

[0021] 6. The present invention sets a monitoring and protection mechanism and utilizes the cooperation between the absorption box and the driving motor to automatically adjust the angle of the absorption box, which can effectively absorb gas when the gas concentration is too high and prevent it from being blocked by dust in the air during normal air circulation.

[0022] 7. The present invention provides a convenient moving mechanism and utilizes the cooperation between the telescopic push rod and the roller bracket to ensure both the stability of the device during the monitoring process and the flexibility of the device during the transfer process. In addition, the height of the fixed base plate from the ground can be fine-tuned, which can better adapt to the complex road environment in the lane.

[0023] 8. The present invention provides a convenient moving mechanism and utilizes the cooperation between the movable roller and the supporting pulley to help the staff to quickly transfer the device in the tunnel without disassembly and transportation, which is more time-saving and labor-saving and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0025] Figure 1 The three-dimensional structure of the overall structure of the present invention Figure 1 ;

[0026] Figure 2 The three-dimensional structure of the present invention Figure 2 ;

[0027] Figure 3 It is a structural schematic diagram of the deformation monitoring mechanism in the present invention;

[0028] Figure 4 It is a structural schematic diagram of the telescopic assembly in the present invention;

[0029] Figure 5 It is a structural schematic diagram of the folding auxiliary mechanism in the present invention;

[0030] Figure 6 It is a structural schematic diagram of the convenient moving mechanism in the present invention;

[0031] Figure 7 It is a schematic diagram of the structure of the roller bracket in the present invention;

[0032] Figure 8 It is a structural schematic diagram of the support pulley in the present invention;

[0033] Fig. 9 It is a schematic diagram of the structure of the protective ring cover in the present invention;

[0034] Fig.10 It is a structural schematic diagram of the monitoring and protection mechanism in the present invention;

[0035] Fig.11 It is a schematic diagram of the structure of the absorption box in the present invention.

[0036] In the figure: 1. Install the vertical plate; 2. Control component; 3. Fix the bottom plate; 4. Deformation monitoring mechanism; 401. Arc steel frame; 402. Install the bracket; 403. Telescopic component; 4031. Circular cylinder; 4032. Sliding round rod; 4033. Limiting round block; 4034. Buffer spring; 4035. Alarm device; 404. Monitoring convex block; 405. Displacement sensor; 5. Folding auxiliary mechanism; 501. Install the base; 502. Vertical slide; 503. Limiting cross bar; 504, laser light; 505, hydraulic support rod; 6, monitoring and protection mechanism; 601, protection ring cover; 602, micro air pump; 603, exhaust pipe; 604, gas sensor; 605, absorption box; 606, driving motor; 607, suction powder; 608, exhaust hole; 7, convenient moving mechanism; 701, rectangular cavity; 702, roller bracket; 703, telescopic push rod; 704, movable roller; 705, supporting pulley. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment 1

[0039] In the existing technology, most of the roof deformation detection is carried out by staff using monitoring instruments for fixed-point detection. It is impossible to continuously carry out all-round multi-point real-time monitoring of the arched roof. It is difficult to accurately support the deformed area as soon as the roof deforms. Moreover, the monitoring instrument needs to be frequently disassembled and assembled when it is moved in the tunnel, which is time-consuming and laborious. In order to solve this technical defect in the existing technology, Figure 1-Figure 4 As shown, this embodiment proposes a roof deformation monitoring device in an underground mine pit, which can automatically monitor multiple stress points of the arched roof in real time. The device is provided with a control component 2 on the side of the vertical plate 1, and a fixed bottom plate 3 is provided at the lower end of the vertical plate 1. The vertical plate 1 is provided with a deformation monitoring mechanism 4 for detecting whether the roof is bent, and the fixed bottom plate 3 is provided with a folding auxiliary mechanism 5 and a convenient moving mechanism 7 for reducing the volume and facilitating transfer. A monitoring and protection mechanism 6 for detecting the surrounding gas content is provided below the deformation monitoring mechanism 4. In the process of using the deformation monitoring mechanism 4 to monitor the deformation of the roof in the mine pit, the monitoring and protection mechanism 6 will automatically detect gas in the surrounding environment to prevent the gas content in the environment from being too high and causing danger.

[0040] In order to achieve all-round multi-point monitoring and improve the accuracy of monitoring, the present embodiment is provided with a deformation monitoring mechanism 4. Specifically, the deformation monitoring mechanism 4 includes an arc-shaped steel frame 401 fixedly mounted on the mounting vertical plate 1, and a plurality of mounting brackets 402 are evenly spaced at the lower end of the arc-shaped steel frame 401. A telescopic component 403 is arranged on the mounting bracket 402, and the telescopic component 403 includes a circular cylinder 4031, and a sliding round rod 4032 is movably mounted on the circular cylinder 4031. A limiting round block 4033 is fixedly mounted on one end of the sliding round rod 4032 extending into the circular cylinder 4031, and a buffer spring 4034 is arranged between the upper end of the limiting round block 4033 and the inner wall of the circular cylinder 4031, and an alarm device 4035 is arranged inside the circular cylinder 4031. When the sliding round rod 4032 moves, the limiting round block 4033 will be The movement occurs synchronously. When the limit round block 4033 contacts the alarm device 4035, the alarm device 4035 will automatically sound an alarm. One end of the sliding round rod 4032 extends into the interior of the circular cylinder 4031, and the other end of the sliding round rod 4032 passes through the arc-shaped steel frame 401 and is fixedly installed with a monitoring protrusion 404. The arc-shaped steel frame 401 matches the shape of the roof in the mine pit. The monitoring protrusion 404 is arc-shaped, thereby ensuring that multiple monitoring protrusions 404 can be in close contact with the roof in the mine pit respectively, thereby improving the monitoring effect. A displacement sensor 405 for measuring the moving distance of the monitoring protrusion 404 is provided on the arc-shaped steel frame 401. When a local depression occurs in the roof of the pit, the monitoring protrusion 404 in contact with the depressed part of the roof will move toward the arc-shaped steel frame 401. During the movement, the displacement sensor 405 will monitor the moving distance in real time.

[0041] According to the above content, during the operation of the monitoring device, the monitoring protrusion 404 will contact the roof of the mine pit under the joint action of the buffer spring 4034 and the sliding round rod 4032, and Figure 2 As shown, a plurality of monitoring protrusions 404 are arranged along the circumferential direction.

[0042] When the top plate undergoes local deformation, the monitoring protrusion 404 in contact with the deformed part will move toward the arc-shaped steel frame 401. At the same time, the displacement sensor 405 will measure the movement distance of the monitoring protrusion 404 and transmit the measured data to the control component 2. The inspection personnel can quickly check the status of the top plate in this area during regular inspections.

[0043] If the shape variable is large, such as Figure 4 As shown, the limiting circular block 4033 will contact the alarm device 4035 under the action of the sliding circular rod 4032, and then the alarm device 4035 will immediately sound an alarm. After hearing the alarm, the staff will immediately strengthen the support of the roof in the area, which can effectively prevent collapse.

[0044] This embodiment, by setting up a deformation monitoring mechanism 4, utilizes the mutual cooperation between the monitoring protrusion 404 and the telescopic component 403, and can automatically monitor multiple stress-bearing points of the arched roof in real time, which can help workers to quickly and accurately locate the deformation position of the roof, facilitate accurate support, and effectively ensure the safety of mining operations; moreover, this embodiment, by setting up a deformation monitoring mechanism 4, utilizes the mutual cooperation between the sliding round rod 4032 and the alarm device 4035, and can automatically sound an alarm when the deformation amount reaches a certain value. After hearing the alarm, the staff will immediately strengthen the support of the area, which can effectively prevent landslides.

[0045] Embodiment 2

[0046] In order to improve the passability and maneuverability of the device in the lane, based on the first embodiment, as Figure 1-Figure 3 as well as Figure 5 As shown, the present embodiment is provided with a folding auxiliary mechanism 5. Specifically, the folding auxiliary mechanism 5 comprises a mounting base 501 fixedly mounted on the fixed bottom plate 3. The mounting vertical plate 1 is rotatably connected to the mounting base 501. A vertical slide groove 502 is provided on the inner side wall of the mounting base 501. A limit cross bar 503 is movably mounted on the vertical slide groove 502. Two limit cross bars 503 are provided. The two limit cross bars 503 are respectively located on both sides of the mounting vertical plate 1. When the two limit cross bars 503 are simultaneously located at the upper end of the vertical slide groove 502, at this time The installation vertical plate 1 will be in a vertical state. When only one limiting cross bar 503 is located at the upper end of the vertical slide 502, the installation vertical plate 1 can be rotated to the other side. Laser lights 504 are symmetrically arranged on the installation base 501. A hydraulic support rod 505 for adjusting the height of the arc-shaped steel frame 401 is fixedly installed on the upper end of the installation vertical plate 1. When the hydraulic support rod 505 is extended, the height of the arc-shaped steel frame 401 will increase. When the hydraulic support rod 505 is shortened, the height of the arc-shaped steel frame 401 will decrease, thereby adapting to mine tunnels of different heights.

[0047] According to the above content, when monitoring the roof deformation, if Figure 2 As shown, the two limiting cross bars 503 are both located at the upper ends of the vertical slide grooves 502, and at this time, the installed vertical plate 1 will always be in a vertical state.

[0048] When the device needs to be transferred, Figure 8 As shown, the staff will push one of the limit cross bars 503 to the lower end of the vertical slide groove 502, and then rotate the installation vertical plate 1 to a horizontal state. At the same time, the hydraulic support rod 505 will shrink to reduce the overall volume of the device. Next, the staff can push the installation vertical plate 1 to move horizontally without disassembling the device.

[0049] Moreover, during the roof monitoring process, two groups of symmetrically arranged laser lights 504 will form width-indicating beams on both sides of the device. When the staff transports materials in the tunnel, they can judge whether the materials will collide with the device based on whether the width-indicating beams are blocked, which can effectively prevent the device from being knocked crooked by other objects.

[0050] By setting up a folding auxiliary mechanism 5 and utilizing the mutual cooperation between the limit cross bar 503 and the hydraulic support rod 505, the height and state of the arc steel frame 401 can be quickly adjusted, so that the staff can transfer and install the device in a narrow lane without disassembly, thereby achieving the effect of saving time and labor; moreover, by setting up a folding auxiliary mechanism 5 and utilizing the mutual cooperation between the mounting base 501 and the laser light 504, the present embodiment can form two parallel width-indicating light beams on both sides of the device, which can effectively prevent the staff from colliding with the mounting vertical plate 1 during the process of transporting materials in the lane, thereby avoiding damage to the device and ensuring the accuracy of deformation monitoring.

[0051] Embodiment 3

[0052] In order to increase the air flow in the tunnel and avoid the danger caused by local accumulation of gas, based on the above embodiment, Figure 1 , Figure 2 as well as Figure 9-11 As shown, the present embodiment is provided with a monitoring and protection mechanism 6. Specifically, the monitoring and protection mechanism 6 comprises a protective ring cover 601 which is detachably mounted on the arc-shaped steel frame 401. A micro air pump 602 is arranged on one side of the protective ring cover 601. An exhaust pipe 603 is arranged on the other side of the protective ring cover 601. A gas sensor 604 for detecting the gas content in the air is arranged inside the protective ring cover 601. A plurality of absorption boxes 605 are movably installed inside the protective ring cover 601. When the micro air pump 602 is powered on and operated, the air in the surrounding environment is sucked into the interior of the protective ring cover 601 and discharged to the interior of the protective ring cover 601 through the exhaust pipe 603. The gas is discharged outside, thereby making the air in the tunnel flow, which can prevent the gas accumulation to a certain extent. A driving motor 606 for driving the absorption box 605 to rotate is arranged on the arc steel frame 401. Initially, the absorption box 605 is parallel to the gas flow direction. When the gas concentration is too high, the absorption box 605 will rotate ninety degrees under the action of the driving motor 606. The absorption box 605 is provided with air-intake powder 607 inside, and a plurality of exhaust holes 608 are opened on the surface of the absorption box 605. The air-intake powder 607 is made of a mixture of activated carbon and zeolite, which can effectively absorb the gas in the air.

[0053] According to the above content, during the roof deformation monitoring process, the micro air pump 602 will continuously draw air from the surrounding environment into the interior of the protective ring cover 601, and discharge it to the outside through the exhaust pipe 603, so that the air in the tunnel is in a circulating flow state, which can effectively prevent the accumulation of gas in the air.

[0054] Moreover, after the air enters the protective ring cover 601, the gas sensor 604 will detect the air. Initially, the absorption box 605 is parallel to the air flow direction. When the gas concentration in the air exceeds the preset value, the absorption box 605 will rotate ninety degrees under the action of the driving motor 606, so as to be perpendicular to the gas flow direction.

[0055] Next, the air-absorbing powder 607 in the absorption box 605 will absorb and remove the gas in the air, which can effectively reduce the gas concentration in the air in the tunnel, thereby ensuring the safety of the workers in the tunnel.

[0056] This embodiment, by setting up a monitoring and protection mechanism 6 and utilizing the mutual cooperation between the gas sensor 604 and the absorption box 605, can automatically monitor the gas concentration in the tunnel while monitoring the roof deformation, and can effectively absorb the gas in the air while the air circulates, which can effectively reduce the concentration of the gas in the tunnel, thereby ensuring the life safety of the workers in the tunnel; moreover, this embodiment, by setting up a monitoring and protection mechanism 6 and utilizing the mutual cooperation between the absorption box 605 and the drive motor 606, can automatically adjust the angle of the absorption box 605, which can not only effectively absorb the gas when the gas concentration is too high, but also prevent it from being blocked by dust in the air during normal air circulation.

[0057] Embodiment 4

[0058] In order to facilitate the staff to quickly transfer the device in the tunnel, based on the above embodiment, Figure 1 as well as Figure 5-Figure 8 As shown, the present embodiment is provided with a convenient moving mechanism 7. Specifically, the convenient moving mechanism 7 comprises a rectangular cavity 701 opened at the lower end of the fixed base plate 3. A roller bracket 702 is movably installed inside the rectangular cavity 701. A telescopic push rod 703 for driving the roller bracket 702 to move up and down is provided on the inner wall of the rectangular cavity 701. A movable roller 704 is rotatably connected to the roller bracket 702. During the deformation monitoring process, the roller bracket 702 is located inside the rectangular cavity 701. At this time, the fixed base plate 3 will be fixed to the ground. When the device is transferred, the roller bracket 702 will extend downward under the action of the telescopic push rod 703. Support pulleys 705 are symmetrically arranged on both sides of the mounting vertical plate 1. When the mounting vertical plate 1 is rotated to a horizontal state, the support pulley 705 will contact the ground, thereby facilitating the staff to push it.

[0059] According to the above content, when the device needs to be transferred in the tunnel, Figure 8 As shown, the installation vertical plate 1 will rotate to a horizontal state, at which time, the support pulley 705 will contact the ground, thereby supporting the installation vertical plate 1.

[0060] Next, the roller bracket 702 will move downward under the action of the telescopic push rod 703, so that the movable roller 704 extends downward to contact the ground. Then, the staff can push the device to move horizontally to quickly transfer.

[0061] This embodiment provides a convenient moving mechanism 7 and utilizes the cooperation between the movable roller 704 and the supporting pulley 705 to help the staff to quickly transfer the device in the tunnel without disassembly and transportation, which is more time-saving and labor-saving and easy to use. Moreover, this embodiment provides a convenient moving mechanism 7 and utilizes the cooperation between the telescopic push rod 703 and the roller bracket 702 to ensure the stability of the device during the monitoring process and the flexibility of the device during the transfer process. In addition, the height of the fixed base plate 3 from the ground can be fine-tuned, which can better adapt to the complex road environment in the tunnel.

[0062] The control method of the present invention is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by technicians in this field. The provision of power is also common knowledge in this field. The present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and circuit connection in detail.

[0063] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0064] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A roof deformation monitoring device in an underground mine pit, comprising a mounting vertical plate (1), a control assembly (2) being arranged on the side of the mounting vertical plate (1), and a fixed bottom plate (3) being arranged at the lower end of the mounting vertical plate (1), characterized in that: The mounting vertical plate (1) is provided with a deformation monitoring mechanism (4) for detecting whether the top plate is bent, the fixed bottom plate (3) is provided with a folding auxiliary mechanism (5) and a convenient moving mechanism (7) for reducing the volume for easy transfer, and a monitoring and protection mechanism (6) for detecting the surrounding gas content is provided below the deformation monitoring mechanism (4); The deformation monitoring mechanism (4) comprises an arc-shaped steel frame (401) fixedly mounted on the mounting vertical plate (1); a plurality of mounting brackets (402) are arranged at equal intervals at the lower end of the arc-shaped steel frame (401); a telescopic assembly (403) is arranged on the mounting bracket (402); the telescopic assembly (403) comprises a circular cylinder (4031); a sliding round rod (4032) is movably mounted on the circular cylinder (4031); one end of the sliding round rod (4032) extends into the interior of the circular cylinder (4031); the other end of the sliding round rod (4032) passes through the arc-shaped steel frame (401) and is fixedly mounted with a monitoring protrusion (404); and a displacement sensor (405) for measuring the moving distance of the monitoring protrusion (404) is arranged on the arc-shaped steel frame (401).

2. The device for monitoring roof deformation in an underground mine according to claim 1, characterized in that: A limiting circular block (4033) is fixedly installed on one end of the sliding circular rod (4032) extending into the circular cylinder (4031), a buffer spring (4034) is arranged between the upper end of the limiting circular block (4033) and the inner wall of the circular cylinder (4031), and an alarm device (4035) is arranged inside the circular cylinder (4031).

3. The device for monitoring roof deformation in an underground mine according to claim 1, characterized in that: The arc-shaped steel frame (401) matches the shape of the roof in the mine pit, and the monitoring protrusion (404) is arc-shaped.

4. The device for monitoring roof deformation in an underground mine according to claim 1, characterized in that: The folding auxiliary mechanism (5) comprises a mounting base (501) fixedly mounted on a fixed bottom plate (3); a mounting vertical plate (1) is rotatably connected to the mounting base (501); a vertical slide groove (502) is provided on the inner side wall of the mounting base (501); a limit cross bar (503) is movably mounted on the vertical slide groove (502); laser lights (504) are symmetrically arranged on the mounting base (501); and a hydraulic support rod (505) for adjusting the height of the arc-shaped steel frame (401) is fixedly mounted on the upper end of the mounting vertical plate (1).

5. The device for monitoring roof deformation in an underground mine according to claim 4, characterized in that: Two limit cross bars (503) are provided, and the two limit cross bars (503) are respectively located on both sides of the mounting vertical plate (1).

6. The device for monitoring roof deformation in an underground mine according to claim 1, characterized in that: The monitoring and protection mechanism (6) comprises a protective ring cover (601) detachably mounted on an arc-shaped steel frame (401); a micro air pump (602) is arranged on one side of the protective ring cover (601); an exhaust pipe (603) is arranged on the other side of the protective ring cover (601); a gas sensor (604) for detecting the gas content in the air is arranged inside the protective ring cover (601); and a plurality of absorption boxes (605) are movably mounted inside the protective ring cover (601).

7. The device for monitoring roof deformation in an underground mine according to claim 6, characterized in that: The arc-shaped steel frame (401) is provided with a driving motor (606) for driving the absorption box (605) to rotate.

8. The device for monitoring roof deformation in an underground mine according to claim 7, characterized in that: The interior of the absorption box (605) is provided with air-absorbing powder (607), and the surface of the absorption box (605) is provided with a plurality of exhaust holes (608).

9. The device for monitoring roof deformation in an underground mine according to claim 1, characterized in that: The convenient moving mechanism (7) comprises a rectangular cavity (701) opened at the lower end of the fixed bottom plate (3), a roller bracket (702) is movably installed inside the rectangular cavity (701), a telescopic push rod (703) for driving the roller bracket (702) to move up and down is provided on the inner wall of the rectangular cavity (701), and a movable roller (704) is rotatably connected to the roller bracket (702).

10. The device for monitoring roof deformation in an underground mine according to claim 9, characterized in that: Support pulleys (705) are symmetrically arranged on both sides of the mounting vertical plate (1).

Images