A detection device for mine safety

Abstract

The present invention relates to the field of mine detection technology, and in particular to a detection device for mine safety, comprising a base, a fan-shaped plate evenly distributed and provided with elastic parts is slidably connected to the upper side of the base, a spring trigger plate is slidably connected to the lower side of the base, a wedge-shaped block evenly distributed and slidably connected to the base is fixed to the upper side of the spring trigger plate, the wedge-shaped block is in contact with the adjacent fan-shaped plate, a detection rod is slidably connected to the base, the detection rod is in contact with the spring trigger plate, a sound wave detector is slidably connected in the detection rod, an elastic part is provided between the sound wave detector and the detection rod, and an annular gas pressure rod is fixed in the detection rod. The present invention drives the protective frame to move through the telescopic end of the annular gas pressure rod, detects and protects the sound wave detector in the detection rod, and avoids friction and extrusion between the rock layer and the sound wave detector when the rock wall and rock layer move due to changes, thereby shortening the service life of the sound wave detector.

Description

Technical Field

[0001] The present invention relates to the technical field of mine detection, and in particular to a detection device for mine safety. Background Art

[0002] During the mining process, due to the uncontrollable geological stability, there are many safety hazards in the mine rock walls. If these hazards are not discovered and properly handled in advance, serious safety accidents are likely to occur. Therefore, the detection of the integrity and strength of the rock walls is crucial.

[0003] Existing technologies usually use ultrasonic detection to detect indicators such as the density of rock walls and rock strata, so as to determine the integrity and solidity of the rock walls. In order to ensure the comprehensiveness of the detection, it is necessary to place the acoustic wave detector in the rock wall detection hole for detection. Due to factors such as geological structure and rock wall excavation, the rock strata will be subjected to stress and move. The movement of the rock strata will squeeze the acoustic wave detector, thereby causing damage to the detection device. Summary of the invention

[0004] In order to overcome the defect of squeezing the acoustic wave detector when the rock wall and rock layer change, the present invention provides a detection device for mine safety.

[0005] The technical solution of the present invention is: a detection device for mine safety, comprising a base, the upper side of the base is slidably connected to a fan-shaped plate that is evenly distributed and is provided with elastic members, the lower side of the base is slidably connected to a spring trigger plate, the upper side of the spring trigger plate is fixed with wedge blocks that are evenly distributed and slidably connected to the base, the wedge blocks are in contact with and cooperate with the adjacent fan-shaped plates, a detection rod is slidably connected to the base, the detection rod is in contact with and cooperates with the spring trigger plate, an acoustic wave detector is slidably connected to the inside of the detection rod, and a sound wave detector is arranged between the acoustic wave detector and the detection rod. An elastic part is arranged, an annular pneumatic rod is fixedly connected in the detection rod, a protective frame slidably connected to the detection rod is fixedly connected at the telescopic end of the annular pneumatic rod, a synchronous ring is slidably connected to the detection rod, an elastic part is arranged between the synchronous ring and the protective frame, a trigger slider which is mirror-distributed and limitedly matched with the synchronous ring is slidably connected in the detection rod, a synchronous rod is fixedly connected to the detection rod, the synchronous rod and the trigger slider which is mirror-distributed are limitedly slidably matched, the annular pneumatic rod is provided with a protective assembly, and an emergency mechanism which is mirror-distributed is arranged in the detection rod.

[0006] More preferably, the wedge block is provided with an inclined surface and a vertical surface on the contact side with the adjacent fan-shaped plate, the vertical surface of the wedge block is located on the side of the inclined surface away from the detection rod, the inclined surface of the wedge block gradually moves away from the detection rod from top to bottom, the spring trigger plate is slidably connected with a spring slider distributed in a mirror image, the lower side of the base is provided with an L-shaped limit groove distributed in a mirror image, and the L-shaped limit groove of the base is limited and slidably matched with the adjacent spring slider.

[0007] More preferably, the limiting fitting part of the trigger slider and the synchronization ring is a limiting groove which gradually approaches the acoustic wave detector from top to bottom, the limiting sliding connection part of the trigger slider and the synchronization rod is an inclined surface which gradually approaches the acoustic wave detector from top to bottom, and the inclination of the upper limiting groove of the trigger slider is smaller than the inclination of the inclined surface on the trigger slider.

[0008] More preferably, the protection assembly includes connecting rods distributed in a mirror image, the connecting rods distributed in a mirror image are respectively rotatably connected to adjacent trigger sliders, the connecting rods distributed in a mirror image are commonly rotatably connected to a fastening block, the fastening block is slidably connected to the detection rod, a protection cloth is provided on one side of the detection rod close to the protection frame, and the protection cloth is connected to the adjacent trigger slider by a rope.

[0009] More preferably, the emergency mechanism includes a connecting shell, the connecting shell is fixed to the detection rod, the connecting shell is fixed to the fixed part of the annular pneumatic rod, the connecting shell is communicated with the annular pneumatic rod, a first sealing block is slidably connected in the connecting shell, an elastic member is arranged between the first sealing block and the adjacent connecting shell, an exhaust port is arranged on the side of the connecting shell close to the acoustic wave detector, the first sealing block is sealed and cooperated with the exhaust port of the adjacent connecting shell, and a blocking component with a mirror distribution is arranged in the detection rod.

[0010] More preferably, the blocking assembly includes a first hydraulic rod, the first hydraulic rod is fixedly connected to the detection rod, an elastic member is arranged in the first hydraulic rod, the telescopic end of the first hydraulic rod is slidably connected to the adjacent connecting shell, the telescopic end of the first hydraulic rod is in contact and cooperate with the adjacent first sealing block, a second hydraulic rod is fixedly connected to the side of the detection rod close to the trigger slider, the second hydraulic rod is connected to the adjacent first hydraulic rod, a hydraulic valve is arranged at the connection between the second hydraulic rod and the adjacent first hydraulic rod, the telescopic end of the second hydraulic rod is slidably connected to a blocking slider, an elastic member is arranged between the blocking slider and the telescopic end of the adjacent second hydraulic rod, a limiting ring is arranged on the telescopic part of the second hydraulic rod, the limiting ring of the telescopic part of the second hydraulic rod is limited and cooperated with the adjacent blocking slider, the blocking slider is limited and slidably cooperated with the adjacent trigger slider, and the blocking slider is slidably connected to the detection rod.

[0011] More preferably, the blocking slider is provided with an inclined surface and a vertical surface, the vertical surface of the blocking slider is located on the side of the inclined surface close to the acoustic wave detector, the sliding distance of the blocking slider on the adjacent second hydraulic rod telescopic portion is greater than the distance from the lower side of the blocking slider to the lower side of the adjacent trigger slider, and the distance that the trigger slider moves toward the side close to the acoustic wave detector is greater than or equal to the horizontal distance of the inclined surface on the blocking slider.

[0012] More preferably, it also includes a reminder component arranged in the detection rod, the reminder component includes a buffer shell, the buffer shell is fixedly connected to the detection rod, the buffer shell is provided with a first buffer chamber, a second buffer chamber and an exhaust chamber, the first buffer chamber of the buffer shell is communicated with the second buffer chamber, a sealing rod is slidably connected in the first buffer chamber of the buffer shell, the sealing rod is slidably connected with a limiting slider distributed in a mirror image, the limiting slider is slidably connected to the detection rod, an elastic member is arranged between the limiting slider and the sealing rod, the limiting sliders distributed in a mirror image are all limitedly matched with the spring trigger plate, the buffer shell is fixed with a whistle distributed in a mirror image, and the exhaust chamber of the buffer shell is communicated with the whistle distributed in a mirror image.

[0013] More preferably, evenly distributed through holes are provided in the buffer shell, and the second buffer cavity in the buffer shell is connected with the exhaust cavity through the evenly distributed through holes.

[0014] More preferably, a limiting groove is provided on the limiting slider, a limiting column with mirror-image distribution is provided on the side of the detecting rod close to the sealing rod, the limiting column of the detecting rod is slidingly matched with the limiting groove on the adjacent limiting slider, a second sealing block is slidably connected in the second buffer cavity of the buffer shell, an elastic member is provided between the second sealing block and the buffer shell, a one-way valve is provided at the connection between the first buffer cavity and the second buffer cavity of the buffer shell, a release slider with mirror-image distribution is slidably connected on the side of the spring trigger plate close to the detecting rod, an elastic member is provided between the release slider and the spring trigger plate, the release slider contacts and cooperates with the adjacent limiting slider, and the spring slider contacts and cooperates with the adjacent release slider.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The invention drives the protective frame to move by the telescopic end of the annular gas pressure rod, and detects and protects the acoustic wave detector in the detection rod, so as to avoid friction and extrusion between the rock layer and the acoustic wave detector when the rock layer moves due to changes, thereby shortening the service life of the acoustic wave detector.

[0017] The present invention protects the acoustic wave detector by arranging an elastic protective baffle, thereby reducing the contact between the acoustic wave detector and the moving sand and stone when entering the rock wall detection hole, and avoiding the deviation of the detection data caused by the wear of the acoustic wave detector;

[0018] The present invention releases the gas in the annular gas pressure rod through the connecting shell in the emergency mechanism, so that the detection rod extends from the rock wall detection hole under the action of the gas, reminding the staff that the rock wall and rock layer at the location of the rock wall detection hole have changed significantly and need to be reinforced;

[0019] The present invention enables the whistle to produce a sound by causing the gas flow between the first buffer chamber, the second buffer chamber and the exhaust chamber of the buffer shell in the reminder component, thereby reminding the corresponding position of the rock wall. Under the action of the through hole in the buffer shell, the reminder time of the whistle is extended, thereby facilitating finding the corresponding position in the mine rock wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0021] Figure 2 It is a partial cross-sectional three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 It is a cross-sectional three-dimensional structural schematic diagram of the base and the spring trigger plate of the present invention;

[0023] Figure 4 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection rod of the present invention;

[0024] Figure 5 It is a schematic diagram of the cross-sectional three-dimensional structure of the detection rod and the protection frame of the present invention;

[0025] Figure 6 It is a schematic diagram of the cross-sectional three-dimensional structure of the trigger slider and the fastening block of the present invention;

[0026] Figure 7 It is a cross-sectional three-dimensional structural schematic diagram of the emergency mechanism of the present invention;

[0027] Figure 8 It is a schematic diagram of the cross-sectional three-dimensional structure of the annular gas pressure rod and the connecting shell of the present invention;

[0028] Fig. 9 It is a schematic diagram of the cross-sectional three-dimensional structure of the blocking slider and the triggering slider of the present invention;

[0029] Fig.10 It is a cross-sectional three-dimensional structural schematic diagram of the reminder component of the present invention;

[0030] Fig.11 It is a schematic diagram of the cross-sectional three-dimensional structure of the buffer shell of the present invention;

[0031] Fig.12 It is a schematic diagram of the cross-sectional three-dimensional structure of the limiting slider and the releasing slider of the present invention.

[0032] In the figure: 1, base; 101, fan-shaped plate; 2, spring trigger plate; 201, wedge block; 202, spring slider; 301, detection rod; 302, acoustic wave detector; 303, annular pneumatic rod; 304, protective frame; 305, synchronization ring; 306, trigger slider; 307, synchronization rod; 31, protection component; 308, connecting rod; 309, fastening block; 310, protection cloth; 4, emergency mechanism; 401, connecting shell; 402, first sealing block; 41, blocking component; 403, first hydraulic rod; 404, second hydraulic rod; 405, blocking slider; 5, reminder component; 501, buffer shell; 502, sealing rod; 503, limit slider; 504, whistle; 505, second sealing block; 506, one-way valve; 507, release slider. DETAILED DESCRIPTION

[0033] Although the present invention may be described with respect to a particular application or industry, those skilled in the art will recognize the broader applicability of the present invention. Those of ordinary skill in the art will recognize that terms such as: upward, downward, etc. are used to describe the drawings and do not represent limitations on the scope of the present invention as defined by the appended claims. Any numerical designations such as: first or second are merely exemplary and are not intended to limit the scope of the present invention in any way.

[0034] Embodiment 1: A detection device for mine safety, such as Figure 1-Figure 6As shown, it includes a base 1, an external control module (not shown in the figure), the upper side of the base 1 is slidably connected with uniformly distributed fan-shaped plates 101, an elastic member is arranged between the fan-shaped plates 101 and the base 1, and the elastic member is a spring. The uniformly distributed fan-shaped plates 101 stabilize the base 1 in the rock wall detection hole by squeezing the rock wall detection hole, and the lower side of the base 1 is slidably connected with a spring trigger plate 2, and the upper side of the spring trigger plate 2 is fixed with uniformly distributed wedge blocks 201 that are slidably connected to the base 1, the wedge blocks 201 are in contact with adjacent fan-shaped plates 101, and the contact side of the wedge blocks 201 and the adjacent fan-shaped plates 101 is provided with an inclined surface and a vertical surface, the vertical surface of the wedge block 201 is located on the side of the inclined surface away from the detection rod 301, and the inclined surface of the wedge block 201 is formed by the upper The spring trigger plate 2 is slidably connected to the spring slider 202 which is distributed in a mirror image. The lower side of the base 1 is provided with an L-shaped limiting groove which is distributed in a mirror image. The L-shaped limiting groove of the base 1 is limited and slidably matched with the adjacent spring slider 202 to keep the spring trigger plate 2 and the base 1 relatively stable. The base 1 is slidably connected to the detection rod 301. The lower end of the detection rod 301 is in contact with the spring trigger plate 2. The sound wave detector 302 is slidably connected in the detection rod 301. The sound wave detector 302 is electrically connected to the control module. A spring is provided between the sound wave detector 302 and the detection rod 301. An annular gas pressure rod 303 is fixed in the detection rod 301. The telescopic end of the annular pneumatic rod 303 is fixedly connected with a protective frame 304 which is slidably connected to the detection rod 301. The protective frame 304 is used to detect and protect the sound wave detector 302 in the detection rod 301 to avoid friction and extrusion between the rock layer and the sound wave detector 302. The detection rod 301 is slidably connected with a synchronous ring 305. An elastic member is arranged between the synchronous ring 305 and the protective frame 304. The elastic member is a tension spring. A starting slider 306 which is distributed in a mirror image is slidably connected in the detection rod 301. The trigger slider 306 which is distributed in a mirror image is limitedly matched with the synchronous ring 305. The limit matching position of the trigger slider 306 with the synchronous ring 305 is a limit groove which gradually approaches the sound wave detector 302 from top to bottom. The detection rod 301 is fixedly connected with a synchronous rod 307. The synchronous rod 307 is fixedly connected with the detection rod 301. 07 and the trigger slider 306 which is distributed in a mirror image are both limited slidingly matched. The limited sliding connection between the trigger slider 306 and the synchronization rod 307 is an inclined surface which gradually approaches the sound wave detector 302 from top to bottom. The inclination of the upper limit groove on the trigger slider 306 is smaller than the inclination of the inclined surface on the trigger slider 306, which is used to make the sound wave detector 302 extend from the detection rod 301. The annular pneumatic rod 303 is provided with a protective component 31 which is distributed in a mirror image and is used to protect the sound wave detector 302. The detection rod 301 is provided with an emergency mechanism 4 which is distributed in a mirror image and is used for emergency retraction of the sound wave detector 302. The protective frame 304 is driven to move by the telescopic end of the annular pneumatic rod 303 to detect and protect the sound wave detector 302 in the detection rod 301.

[0035] like Figure 5 and Figure 6 As shown, the protection assembly 31 includes mirror-distributed connecting rods 308, which are respectively rotatably connected to adjacent trigger sliders 306, and the mirror-distributed connecting rods 308 are rotatably connected to fastening blocks 309, and the fastening blocks 309 are provided with an inclined surface which gradually moves away from the acoustic wave detector 302 from top to bottom, so that the fastening blocks 309 can easily enter the rock wall detection hole, and the mirror-distributed fastening blocks 309 and the mirror-distributed trigger sliders 306 are diagonally distributed in a parallelogram, and the fastening blocks 309 and the detection The rod 301 is slidably connected, and a protective cloth 310 is arranged on the upper side of the detection rod 301. The protective cloth 310 is an elastic, friction-resistant protective cloth. The protective cloth 310 is connected to the adjacent trigger slider 306 by a rope. The trigger slider 306 drives the mirror-distributed fastening blocks 309 to move simultaneously, so that the fastening blocks 309 cooperate with the rock wall detection hole to stabilize the detection rod 301. The protective cloth 310 protects the acoustic wave detector 302 to prevent the acoustic wave detector 302 from being scratched by sand and gravel when entering the rock wall detection hole.

[0036] like Figure 7 and Figure 8 As shown, the emergency mechanism 4 includes a connecting shell 401, the connecting shell 401 is used to discharge the gas in the annular gas pressure rod 303, the connecting shell 401 is fixed to the detection rod 301, the connecting shell 401 is fixed to the fixing part of the annular gas pressure rod 303, the connecting shell 401 is connected to the annular gas pressure rod 303, a first sealing block 402 is slidably connected in the connecting shell 401, an elastic member is provided between the first sealing block 402 and the adjacent connecting shell 401, the elastic member is a spring, an exhaust port is provided on the side of the connecting shell 401 close to the acoustic wave detector 302, and the first sealing block 402 Cooperating with the exhaust port sealing of the adjacent connecting shell 401, it is used to release the blockage of the exhaust port of the first sealing block 402 and the adjacent connecting shell 401 only when the air pressure in the annular pneumatic rod 303 and the connecting shell 401 reaches a certain level. A blocking component 41 with a mirror distribution is provided in the detection rod 301. The blocking component 41 is used to block the trigger slider 306, and the gas in the annular pneumatic rod 303 is discharged through the connecting shell 401, so that the amount of gas between the upper side of the detection rod 301 and the rock wall detection hole is increased, thereby causing the detection rod 301 to extend from the rock wall detection hole.

[0037] like Figure 7-Figure 9As shown, the blocking assembly 41 includes a first hydraulic rod 403, the first hydraulic rod 403 is fixedly connected to the detection rod 301, an elastic member is arranged in the first hydraulic rod 403, the elastic member is a spring, the telescopic end of the first hydraulic rod 403 is slidably connected with the adjacent connecting shell 401, the telescopic end of the first hydraulic rod 403 is in contact with the adjacent first sealing block 402, and the limit position of the telescopic end of the first hydraulic rod 403 is flush with the upper side of the exhaust port of the connecting shell 401, which is used to increase the air pressure in the connecting shell 401. The telescopic end of the first hydraulic rod 403 is triggered to move, and a second hydraulic rod 404 is fixedly connected to the upper side of the detection rod 301. The second hydraulic rod 404 is connected to the adjacent first hydraulic rod 403. A hydraulic valve is provided at the connection between the second hydraulic rod 404 and the adjacent first hydraulic rod 403. The hydraulic valve is electrically connected to the control module. The telescopic end of the second hydraulic rod 404 is slidably connected to a blocking slider 405. The blocking slider 405 is provided with an inclined surface and a vertical surface. The vertical surface of the blocking slider 405 is located at the inclined surface close to the acoustic wave detector. 302, the vertical surface of the blocking slider 405 is used to limit the adjacent trigger slider 306, an elastic member is arranged between the blocking slider 405 and the telescopic end of the adjacent second hydraulic rod 404, the elastic member is a spring, and the spring is in an extruded force storage state in the initial state, a limiting ring is arranged on the telescopic part of the second hydraulic rod 404, the limiting ring of the telescopic part of the second hydraulic rod 404 is limited and matched with the adjacent blocking slider 405, the blocking slider 405 is slidably connected with the detection rod 301, the sliding distance of the blocking slider 405 on the telescopic part of the adjacent second hydraulic rod 404 is greater than the distance from the lower side of the blocking slider 405 to the lower side of the adjacent trigger slider 306, the distance that the trigger slider 306 moves toward the side close to the acoustic wave detector 302 is greater than or equal to the horizontal distance of the upper inclined surface of the blocking slider 405, the adjacent trigger slider 306 is limited by the blocking slider 405, so that the trigger slider 306 will be triggered to reset only when there is a significant change in the rock formation, thereby allowing the acoustic wave detector 302 to maintain real-time detection.

[0038] When the present invention is used to detect the safety of a mine rock wall, a detection hole is first drilled at the location of the rock wall to be detected. The detection hole of the rock wall is horizontal and located on the vertical rock wall (the following operation direction is based on the attached Figure 1 ), put the upper side of the base 1 facing the direction of the rock wall detection hole, and make the lower side of the base 1 flush with the inner wall around the rock wall detection hole. At this time, the evenly distributed fan-shaped plates 101 are located in the detection hole of the rock wall. After the base 1 is placed, push the detection rod 301 into the detection hole of the rock wall. The protective baffle 310 on the upper side of the detection rod 301, which is distributed in a mirror image, protects the acoustic wave detector 302 in the detection rod 301 at the same time, reduces the contact between the sand and gravel in the rock wall detection hole and the acoustic wave detector 302, and avoids the acoustic wave detector 302 being damaged by excessive scratches by sand and gravel.

[0039] When the detection rod 301 enters the rock wall detection hole, the lower side of the detection rod 301 first contacts the spring trigger plate 2 and pushes it upward, the spring of the spring trigger plate 2 is squeezed and stored, and the spring trigger plate 2 drives the evenly distributed wedge blocks 201 to move upward, and the inclined surface of the wedge block 201 contacts the adjacent fan-shaped plate 101 and moves it to the side away from the detection rod 301, and the spring of the fan-shaped plate 101 is squeezed and stored, and the circumferentially evenly distributed fan-shaped plate 101 contacts the inner wall of the rock wall detection hole and pushes circumferentially, so that the base 1 is stabilized in the rock wall detection hole until the spring trigger plate 2 fits with the lower side of the base 1, at which time the fan-shaped plate 101 releases the contact with the upper inclined surface of the adjacent wedge block 201 and contacts the vertical surface of the wedge block 201, so that the fan-shaped plate 101 is limited by the vertical surface of the wedge block 201, thereby The fan-shaped plate 101 is made unable to reset while reducing the reset thrust. When the spring trigger plate 2 moves upward and is about to fit with the base 1, the spring slider 202 distributed in a mirror image on the spring trigger plate 2 contacts the L-shaped limit groove of the adjacent base 1. After the spring slider 202 contacts the L-shaped limit groove of the adjacent base 1, it moves toward the side close to the detection rod 301. The spring of the spring slider 202 is squeezed and force is accumulated until the spring slider 202 enters the L-shaped limit groove. Then, the spring slider 202 moves to the side away from the detection rod 301 under the action of the elastic force of the spring, so that the spring slider 202 limits the base 1, so that the spring trigger plate 2 and the base 1 are relatively stable. The spring trigger plate 2 keeps the circumferentially evenly distributed fan-shaped plate 101 in a stable state that cannot be reset, thereby stabilizing the base 1 in the rock wall detection hole.

[0040] After the detection rod 301 enters the detection hole of the rock wall, gas is injected into the annular pneumatic rod 303, so that the telescopic end of the annular pneumatic rod 303 extends upward, and the telescopic end of the annular pneumatic rod 303 drives the protective frame 304 to move upward, and the protective frame 304 drives the synchronous ring 305 to move upward through the tension spring, and the synchronous ring 305 drives the trigger slider 306 distributed in a mirror image to move to the side close to the sound wave detector 302 at the same time through the limit groove. Taking the second hydraulic rod 404 on the left side as an example, the adjacent blocking slider 405 on the telescopic end of the second hydraulic rod 404 moves upward under the elastic force of the spring, and keeps in contact with the corresponding The adjacent trigger slider 306 contacts, and the mirror-distributed trigger slider 306 drives the mirror-distributed fastening block 309 to move to the side away from the acoustic wave detector 302 at the same time through the adjacent mirror-distributed connecting rod 308. The fastening block 309 enters the inner wall of the rock wall detection hole through the inclined surface thereon, so that the detection rod 301 is stabilized in the rock wall detection hole. At the same time, the fastening block 309 drives the protective cloth 310 to move and open to the side away from the acoustic wave detector 302 through the rope, so that the mirror-distributed protective cloth 310 is opened at the same time to expose the acoustic wave detector 302, thereby releasing the protection of the acoustic wave detector 302.

[0041] When the trigger slider 306 distributed in a mirror image moves to the side close to the acoustic wave detector 302, the trigger slider 306 distributed in a mirror image drives the synchronization rod 307 to move upward through the inclined surface thereon, and the synchronization rod 307 drives the acoustic wave detector 302 to move upward, and the spring between the acoustic wave detector 302 and the detection rod 301 is squeezed and stored, so that the acoustic wave detector 302 protrudes upward from the detection rod 301 until the telescopic end of the annular gas pressure rod 303 moves to the limit and stops injecting gas. At this time, the trigger slider 306 distributed in a mirror image all moves to the side close to the acoustic wave detector 302. The limit position on the side, at this time, the blocking slider 405 moves upward to the limit position under the elastic force of the spring, so that the vertical surface on the blocking slider 405 contacts the adjacent trigger slider 306 for limit, and then the control module controls the sound wave detector 302 to start, and the sound wave detector 302 detects the integrity and firmness of the rock wall and rock formation by transmitting and receiving ultrasonic waves. The sound wave detector 302 receives the reflected ultrasonic wave and converts it into an electrical signal and transmits it to the control module, so as to obtain the integrity and firmness of the rock wall and rock formation in the corresponding detection area, and the installation of the detection device is completed.

[0042] During the detection process of the acoustic wave detector 302, the rock layer of the rock wall will be subjected to stress and move due to factors such as geological structure and rock wall excavation. When the rock layer on the upper side of the acoustic wave detector 302 is less affected and moves toward the side close to the acoustic wave detector 302, the rock layer first contacts the protective frame 304 and pushes it downward. The protective frame 304 drives the telescopic end of the annular gas pressure rod 303 to move downward, thereby increasing the air pressure in the annular gas pressure rod 303. The annular gas pressure rod 303 circulates the gas to the connecting shell 401 with a mirror distribution, thereby moving the adjacent first sealing block 402 in the connecting shell 401 downward. The first sealing block 402 and The springs of the adjacent connecting shells 401 are squeezed and force is accumulated, and the trigger slider 306 distributed in a mirror image remains stable under the action of the vertical surface on the adjacent blocking slider 405, so that the trigger slider 306 distributed in a mirror image drives the synchronization ring 305 to remain stable. When the protective frame 304 moves downward, the tension spring between the synchronization ring 305 and the protective frame 304 is stretched and force is accumulated, so that the trigger slider 306 will not immediately drive the acoustic wave detector 302 to move and retract, avoiding the acoustic wave detector 302 from being directly retracted when affected by a smaller movement of the rock wall and rock formation, thereby increasing the real-time performance of the acoustic wave detector 302 in detecting changes in the movement of the rock wall and rock formation.

[0043] When the rock formation undergoes a significant change and moves toward the side close to the acoustic wave detector 302, the rock formation drives the protective frame 304 downward to the limit position, so that the air pressure in the annular gas pressure rod 303 is further increased, and the first sealing block 402 continues to move downward until the first sealing block 402 releases the blockage with the adjacent connecting shell 401 exhaust port, so that the gas in the annular gas pressure rod 303 and the connecting shell 401 is discharged, and the amount of gas between the upper side of the detection rod 301 and the rock wall detection hole increases, so that the detection rod 301 is pushed downward by the action of the air pressure. When the first sealing block 402 moves to release the blockage with the adjacent connecting shell 401 exhaust port, the first sealing block 402 contacts the telescopic end of the adjacent first hydraulic rod 403 and pushes it downward, and the spring in the first hydraulic rod 403 is squeezed and stored, so that the hydraulic oil in the first hydraulic rod 403 flows through the hose to the second hydraulic rod 404, and the amount of hydraulic oil in the second hydraulic rod 404 increases. The increase makes its telescopic end extend downward, and the telescopic part of the second hydraulic rod 404 drives the blocking slider 405 to move downward through the limiting ring thereon until the vertical surface on the blocking slider 405 releases the limiting contact with the adjacent trigger slider 306, and the synchronous ring 305 resets downward under the elastic force of the tension spring, and the synchronous ring 305 drives it to reset through the limiting groove of the trigger slider 306 distributed in a mirror image, and the inclined surface on the trigger slider 306 maintains contact with the synchronous rod 307, so that the acoustic wave detector 302 drives the synchronous rod 307 to move downward and reset at the same time under the elastic force of the spring, and the mirror image distribution of the trigger slider 306 simultaneously drives the mirror image distribution of the fastening block 309 to reset, so that the fastening block 309 releases the contact with the rock wall detection hole, thereby releasing the stability of the detection rod 301 in the rock wall detection hole, and the mirror image distribution of the protective baffle 310 restores the protection of the acoustic wave detector 302 in the detection rod 301 under the elastic action.

[0044] After the detection rod 301 is released from the stability in the rock wall detection hole, the detection rod 301 is pushed downward by the gas pressure between its upper side and the rock wall detection hole until the detection rod 301 returns to its initial position, so that the detection rod 301 extends from the lower side of the spring trigger plate 2 (the detection rod 301 extends from the horizontal rock wall detection hole). At this time, the gas in the annular gas pressure rod 303 and the mirror-distributed connecting shell 401 is completely discharged, and the adjacent first sealing block 402 in the connecting shell 401 is reset upward under the elastic force of the spring. At the same time, the first sealing block 402 is released from the contact with the first hydraulic rod 403, and the telescopic end of the first hydraulic rod 403 is retracted under the elastic force of the spring. The second hydraulic rod 404 is reset upward under the action of force, so that the hydraulic oil in the second hydraulic rod 404 flows back into the adjacent first hydraulic rod 403, and the amount of hydraulic oil in the second hydraulic rod 404 is reduced, causing its telescopic end to retract upward. Under the limiting action of the triggering slider 306, the blocking slider 405 and the spring at the telescopic end of the second hydraulic rod 404 restore the extrusion and storage state. At this time, the detection rod 301 extending from the rock wall detection hole reminds the staff that the rock wall and rock strata at this location have changed significantly and need to be reinforced, thereby ensuring the integrity and solidity of the corresponding rock wall and rock strata, improving the safety of the rock wall, and at the same time avoiding the changes and movements of the rock strata to squeeze and damage the acoustic wave detector 302.

[0045] When the acoustic wave detector 302 completes detection and the rock layer structure has not changed, the control module controls the acoustic wave detector 302 to stop, and then the gas in the annular gas pressure rod 303 is extracted, so that the telescopic end of the annular gas pressure rod 303 is retracted downward and reset, and the telescopic end of the annular gas pressure rod 303 drives the protective frame 304 to move downward and reset, and the trigger slider 306 contacts and limits the vertical surface on the adjacent blocking slider 405, so that the tension spring between the protective frame 304 and the synchronous ring 305 is stretched and stored. At this time, the control module controls the hydraulic valve to make the hydraulic oil in the first hydraulic rod 403 flow to the adjacent second hydraulic rod 404, so that the adjacent blocking slider 405 releases the limit on the adjacent trigger slider 306, so that the mirror-distributed trigger slider 306 is driven to reset by the synchronous ring 305, and the mirror-distributed trigger slider 306 keeps in contact with the synchronous rod 307 at the same time, so that the acoustic wave detector 302 is reset downward and retracted into the detection rod 301 under the elastic force of the spring, and the mirror-distributed trigger slider 306 is simultaneously The mirror-image fastening block 309 is driven to reset to release the stability of the detection rod 301. The fastening block 309 drives the adjacent protective cloth 310 to reset and restore the protection of the detection rod 301. Then the detection rod 301 is pulled downward to restore the initial position (the detection rod 301 extends from the horizontal rock wall detection hole to restore the initial position). When the detection rod 301 is restored to the initial position, the mirror-image spring slider 202 is simultaneously pushed to the side close to the detection rod 301 to release the spring slider 202 from the detection rod 301. The base 1 is limited, so that the spring trigger plate 2 is released from the stability of the base 1, and the spring trigger plate 2 is reset downward under the elastic force of the spring, and the spring trigger plate 2 drives the evenly distributed wedge blocks 201 to reset downward, and the wedge blocks 201 are released from the contact with the adjacent sector plates 101, and the sector plates 101 are moved and reset to the side close to the detection rod 301 under the elastic force of the spring, so as to release the stability of the base 1 in the rock wall detection hole, and move the base 1 away from the rock wall detection hole, thereby completing the safe detection of the mine rock wall.

[0046] Embodiment 2, based on embodiment 1, as Figure 10-12As shown, it also includes a reminder component 5 arranged in the detection rod 301, the reminder component 5 is used to remind special situations, the reminder component 5 includes a buffer shell 501, the buffer shell 501 is fixedly connected to the detection rod 301, the buffer shell 501 is provided with a first buffer cavity, a second buffer cavity and an exhaust cavity, the first buffer cavity of the buffer shell 501 is filled with gas, the first buffer cavity of the buffer shell 501 is connected to the second buffer cavity, the buffer shell 501 is provided with uniformly distributed through holes, the second buffer cavity in the buffer shell 501 is connected to the exhaust cavity through the uniformly distributed through holes, the through holes in the buffer shell 501 are used to slow down the circulation speed of the gas, the first buffer cavity of the buffer shell 501 is slidably connected with a sealing rod 502, and the sealing rod 502 is slidably connected with a limit sliding Block 503, the limit slider 503 is slidably connected with the detection rod 301, an elastic member is arranged between the limit slider 503 and the sealing rod 502, and the elastic member is a spring. The limit sliders 503 distributed in a mirror image are limitedly matched with the spring trigger plate 2, and the buffer shell 501 is fixedly connected with the whistle 504 distributed in a mirror image. The exhaust cavity of the buffer shell 501 is connected with the whistle 504 distributed in a mirror image. Through the limit cooperation between the limit slider 503 and the spring trigger plate 2, the limit slider 503 drives the sealing rod 502 to move upward relative to the detection rod 301, thereby squeezing the gas in the first buffer cavity of the buffer shell 501 into the second buffer cavity, and the second buffer cavity then slowly allows the gas to flow to the exhaust cavity through the through hole, thereby prolonging the time for the whistle 504 to emit a reminder sound.

[0047] like Fig.11 and 12As shown, the limit slider 503 is provided with limit grooves in mirror image distribution, and the detection rod 301 is provided with limit columns evenly and in mirror image distribution on one side of the sealing rod 502. The limit columns of the detection rod 301 are limited and slidably matched with the limit grooves on the adjacent limit slider 503, so as to release the limit slider 503 from the limit of the spring trigger plate 2. A second sealing block 505 is slidably connected in the second buffer cavity of the buffer shell 501, and an elastic member is provided between the second sealing block 505 and the buffer shell 501, which is a spring. A one-way valve 506 is provided at the connection between the first buffer cavity and the second buffer cavity of the buffer shell 501, and the one-way valve 506 limits the one-way flow of air in the first buffer cavity of the buffer shell 501. The air flows to the second buffer chamber, and a release slider 507 is slidably connected to one side of the spring trigger plate 2 close to the detection rod 301, and an elastic member is arranged between the release slider 507 and the spring trigger plate 2, and the elastic member is a spring. The release slider 507 contacts and cooperates with the adjacent limit slider 503, and the spring slider 202 contacts and cooperates with the adjacent release slider 507. Under the elastic force of the spring of the second sealing block 505, the flow state from the second buffer chamber to the exhaust chamber is maintained, and the adjacent release slider 507 is driven to move by the spring slider 202 to release the limit of the limit slider 503 and the spring trigger plate 2, so that the detection rod 301 is reset without the need for gas flow in the buffer shell 501.

[0048] When the detection rod 301 enters the rock wall detection hole, the mirror-distributed limit slider 503 on the detection rod 301 first contacts the spring trigger plate 2, and the detection rod 301 continues to move upward so that the spring trigger plate 2 contacts the mirror-distributed limit slider 503 and squeezes it toward the side close to the buffer shell 501, and the spring of the limit slider 503 is squeezed and accumulated until the limit slider 503 moves upward to the limit position with the spring trigger plate 2, and the limit slider 503 moves toward the side away from the buffer shell 501 under the elastic force of the spring, so that the spring trigger plate 2 limits the lower side of the limit slider 503, and then the detection rod 301 continues to move upward so that its lower side contacts the spring trigger plate 2 and pushes it upward, and stops moving upward after the spring trigger plate 2 contacts the base 1.

[0049] When the rock formation undergoes a significant change and the detection rod 301 extends out of the rock wall detection hole, the spring trigger plate 2 limits the lower side of the limit slider 503, causing the limit slider 503 to move upward relative to the detection rod 301, and the limit slider 503 drives the sealing rod 502 to move upward relative to the detection rod 301. The sealing rod 502 squeezes the gas in the first buffer chamber of the buffer shell 501 into the second buffer chamber of the buffer shell 501 through the one-way valve 506. The air pressure in the second buffer chamber of the buffer shell 501 increases, pushing the second sealing block 505 to move upward, and the spring of the second sealing block 505 is squeezed and stored. The gas flows through the through hole to the exhaust chamber of the buffer shell 501. Since the through hole slows down the flow speed of the gas, and the gas in the second buffer chamber of the buffer shell 501 cannot flow back to the first buffer chamber of the buffer shell 501 through the one-way valve 506, the gas in the second buffer chamber of the buffer shell 501 slowly enters the exhaust chamber of the buffer shell 501 under the elastic force of the spring of the second sealing block 505, and the gas in the exhaust chamber of the buffer shell 501 is discharged to the outside through the whistle 504 distributed in a mirror image, so that the whistle 504 makes a sound to remind the staff that the rock stratum at the corresponding position of the rock wall has changed significantly, and then more precise reinforcement is carried out according to the position of the rock stratum change.

[0050] When the limit slider 503 moves upward relative to the detection rod 301, the limit slider 503 moves to cooperate with the adjacent limit column of the detection rod 301. Under the action of the adjacent limit column of the detection rod 301, the limit slider 503 moves to the side close to the buffer shell 501, and the spring of the limit slider 503 is squeezed and accumulated. When the limit slider 503 moves upward to the extreme position relative to the detection rod 301, the limit slider 503 releases the limit with the spring trigger plate 2, so that the limit slider 503 is driven by the detection rod 301 to continue to move downward until the detection rod 301 returns to its initial position, thereby realizing a reminder when there are major changes in the rock wall and rock formation.

[0051] After the detection of the acoustic wave detector 302 is completed and the rock structure has not changed, when it needs to be released, the spring sliders 202 distributed in a mirror image are pushed to the side close to the detection rod 301 at the same time, the spring of the spring slider 202 is squeezed and stored, the spring slider 202 contacts the adjacent release slider 507 and pushes it to the side close to the buffer shell 501, so that the spring of the slider 507 is released from being squeezed and stored, and the release slider 507 drives the adjacent limit slider 503 to move to the side close to the buffer shell 501 until the limit slider 503 is released from the limit with the spring trigger plate 2, at this time, the detection rod 301 is pulled downward to restore to the initial position (the detection rod 301 extends from the horizontal rock wall detection hole to restore to the initial position), and then the push on the spring slider 202 distributed in a mirror image is released, and the spring slider 202 distributed in a mirror image is reset under the elastic force of the spring, and at the same time, the spring slider 202 is released from the contact with the adjacent release slider 507, so that the slider 507 is released from the reset under the elastic force of the spring, thereby completing the safe detection of the mine rock wall.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the present invention.

Claims

1. A detection device for mine safety, characterized in that: The invention comprises a base (1), wherein the upper side of the base (1) is slidably connected to fan-shaped plates (101) which are evenly distributed and each of which is provided with an elastic member, the lower side of the base (1) is slidably connected to a spring trigger plate (2), the upper side of the spring trigger plate (2) is fixedly connected to wedge-shaped blocks (201) which are evenly distributed and slidably connected to the base (1), the wedge-shaped blocks (201) are in contact with and cooperate with the adjacent fan-shaped plates (101), the base (1) is slidably connected to a detection rod (301), the detection rod (301) is in contact with and cooperates with the spring trigger plate (2), the detection rod (301) is slidably connected to an acoustic wave detector (302), an elastic member is provided between the acoustic wave detector (302) and the detection rod (301), and the detection rod (301) is fixedly connected to an annular gas detector (302). A pressure rod (303), the telescopic end of the annular pneumatic rod (303) is fixedly connected to a protective frame (304) slidably connected to the detection rod (301), the detection rod (301) is slidably connected to a synchronization ring (305), an elastic member is provided between the synchronization ring (305) and the protection frame (304), a trigger slider (306) which is mirror-distributed and limitedly matched with the synchronization ring (305) is slidably connected inside the detection rod (301), a synchronization rod (307) is fixedly connected to the detection rod (301), the synchronization rod (307) and the trigger slider (306) which is mirror-distributed are both limitedly slidably matched, the annular pneumatic rod (303) is provided with a protection component (31), and an emergency mechanism (4) which is mirror-distributed is provided inside the detection rod (301); The contact side of the wedge block (201) and the adjacent sector plate (101) is provided with an inclined surface and a vertical surface, the vertical surface of the wedge block (201) is located on the side of the inclined surface away from the detection rod (301), and the inclined surface of the wedge block (201) is gradually away from the detection rod (301) from top to bottom, and the spring trigger plate (2) is slidably connected with a spring slider (202) distributed in a mirror image, and the lower side of the base (1) is provided with an L-shaped limiting groove distributed in a mirror image, and the L-shaped limiting groove of the base (1) is limited and slidably matched with the adjacent spring slider (202); The position-limiting cooperation portion between the trigger slider (306) and the synchronization ring (305) is a position-limiting groove which gradually approaches the acoustic wave detector (302) from top to bottom, the position-limiting sliding connection portion between the trigger slider (306) and the synchronization rod (307) is an inclined surface which gradually approaches the acoustic wave detector (302) from top to bottom, and the inclination of the upper position-limiting groove of the trigger slider (306) is smaller than the inclination of the inclined surface on the trigger slider (306); The protection assembly (31) comprises connecting rods (308) arranged in a mirror image, the connecting rods (308) arranged in a mirror image are respectively rotatably connected to adjacent trigger sliders (306), the connecting rods (308) arranged in a mirror image are rotatably connected to a fastening block (309) together, the fastening block (309) is slidably connected to the detection rod (301), a protection cloth (310) is provided on a side of the detection rod (301) close to the protection frame (304), and the protection cloth (310) is connected to the adjacent trigger slider (306) via a rope; The emergency mechanism (4) comprises a connecting shell (401), the connecting shell (401) is fixedly connected to the detection rod (301), the connecting shell (401) is fixedly connected to the fixing part of the annular gas pressure rod (303), the connecting shell (401) is connected to the annular gas pressure rod (303), a first sealing block (402) is slidably connected in the connecting shell (401), an elastic member is provided between the first sealing block (402) and the adjacent connecting shell (401), an exhaust port is provided on a side of the connecting shell (401) close to the acoustic wave detector (302), the first sealing block (402) is sealed and cooperated with the exhaust port of the adjacent connecting shell (401), and a blocking component (41) distributed in a mirror image is provided in the detecting rod (301).

2. A detection device for mine safety according to claim 1, characterized in that: The blocking assembly (41) comprises a first hydraulic rod (403), the first hydraulic rod (403) being fixedly connected to the inside of the detection rod (301), an elastic member being arranged inside the first hydraulic rod (403), a telescopic end of the first hydraulic rod (403) being slidably connected to the adjacent communication shell (401), the telescopic end of the first hydraulic rod (403) being in contact and cooperation with the adjacent first sealing block (402), a second hydraulic rod (404) being fixedly connected to the inside of a side of the detection rod (301) close to the trigger slider (306), the second hydraulic rod (404) being in communication with the adjacent first hydraulic rod (403), the second hydraulic rod (404) being in communication with the adjacent first hydraulic rod (403), A hydraulic valve is provided at the connection point between the second hydraulic rod (404) and the adjacent first hydraulic rod (403); a blocking slider (405) is slidably connected to the telescopic end of the second hydraulic rod (404); an elastic member is provided between the blocking slider (405) and the telescopic end of the adjacent second hydraulic rod (404); a limiting ring is provided on the telescopic part of the second hydraulic rod (404); the limiting ring of the telescopic part of the second hydraulic rod (404) is limitedly matched with the adjacent blocking slider (405); the blocking slider (405) is limitedly slidably matched with the adjacent triggering slider (306); and the blocking slider (405) is slidably connected to the detection rod (301).

3. A detection device for mine safety according to claim 2, characterized in that: The blocking slider (405) is provided with an inclined surface and a vertical surface, the vertical surface of the blocking slider (405) is located on a side of the inclined surface close to the acoustic wave detector (302), the distance that the blocking slider (405) slides on the telescopic portion of the adjacent second hydraulic rod (404) is greater than the distance from the lower side surface of the blocking slider (405) to the lower side surface of the adjacent triggering slider (306), and the distance that the triggering slider (306) moves toward the side close to the acoustic wave detector (302) is greater than or equal to the horizontal distance of the inclined surface on the blocking slider (405).

4. The detection device for mine safety according to claim 1 is characterized in that: The device further comprises a reminder component (5) arranged in the detection rod (301), the reminder component (5) comprising a buffer shell (501), the buffer shell (501) being fixedly connected to the detection rod (301), the buffer shell (501) being provided with a first buffer chamber, a second buffer chamber and an exhaust chamber, the first buffer chamber of the buffer shell (501) being communicated with the second buffer chamber, the first buffer chamber of the buffer shell (501) being slidably connected to a sealing rod (502), the sealing rod (502) being slidably connected to the exhaust chamber. A mirror-distributed limiting slider (503) is connected, the limiting slider (503) is slidably connected to the detection rod (301), an elastic member is arranged between the limiting slider (503) and the sealing rod (502), the mirror-distributed limiting sliders (503) are both limitedly matched with the spring trigger plate (2), the buffer shell (501) is fixedly connected with a mirror-distributed whistle (504), and the exhaust cavity of the buffer shell (501) is communicated with the mirror-distributed whistle (504).

5. A detection device for mine safety according to claim 4, characterized in that: The buffer shell (501) is provided with evenly distributed through holes, and the second buffer cavity in the buffer shell (501) is connected to the exhaust cavity through the evenly distributed through holes.

6. A detection device for mine safety according to claim 5, characterized in that: The limiting slide block (503) is provided with a limiting groove, and a limiting column distributed in a mirror image is provided on the side of the detection rod (301) close to the sealing rod (502). The limiting column of the detection rod (301) is slidingly matched with the limiting groove on the adjacent limiting slide block (503). A second sealing block (505) is slidably connected in the second buffer cavity of the buffer shell (501), and an elastic member is provided between the second sealing block (505) and the buffer shell (501). The buffer shell (5 A one-way valve (506) is provided at the connection point between the first buffer chamber and the second buffer chamber of the spring trigger plate (2), a release slider (507) which is mirror-distributed is slidably connected to the side of the spring trigger plate (2) close to the detection rod (301), an elastic member is provided between the release slider (507) and the spring trigger plate (2), the release slider (507) is in contact with and cooperates with the adjacent limit slider (503), and the spring slider (202) is in contact with and cooperates with the adjacent release slider (507).

Images