Mine hole supporting device for mine safety

Abstract

The invention relates to the technical field of mine supporting, in particular to a mine hole supporting device for mine safety, which comprises a supporting frame, the supporting frame is arc-shaped, the mine hole supporting device further comprises a supporting assembly for supporting a mine hole recess, and the supporting assembly comprises a top plate slidably connected to the top end of the supporting frame. The top of the mine hole can be supported by arranging the supporting frame, the top plate can be jacked up through an air bag in a supporting structure when the concave position of the mine hole needs to be supported by arranging the supporting assembly, so that the top plate is attached to the concave position of the mine hole, and after the top plate is attached to the concave position of the mine hole by arranging the stress structure, the top plate can be fixed to the concave position of the mine hole. The groove in the inclined position of the stress plate is matched with the top plate, counter-acting force borne by the top plate can be transmitted to the supporting frame, stable supporting can be provided for the bottom of the top plate, and the problem that uneven supporting stress is likely to be caused at the sunken position of the top of the mine hole is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of mine support, and particularly relates to a mine cave support device for mine safety. Background Art

[0002] When mining minerals in a mine, it is necessary to excavate a mine cave to facilitate the mining and transportation of underground minerals. The support device for the mine cave is a device used to support the mine cave and is a key structure to ensure the safety of the mine cave and prevent the surrounding rock from collapsing. It mainly supports the top of the mine cave through a steel support frame, bears the pressure of the rock layer at the top of the mine cave, and thus improves the safety inside the mine cave.

[0003] In the prior art, when using an arc-shaped support device to support the inside of a mine cave, the top of some mine caves will encounter the problem of uneven contact surfaces. When the arc-shaped support device is installed in a mine cave with an uneven top, it will cause the arc-shaped support device to not be able to evenly contact the surrounding rock, and the sunken area is difficult to be supported. The unsupported sunken area may gradually collapse, causing potential safety hazards. Therefore, there is an urgent need to propose a mine cave support device for mine safety. Summary of the Invention

[0004] The purpose of the present invention is to address the problem in the background art that the sunken area at the top of the mine cave is prone to cause uneven support force, and to propose a mine cave support device for mine safety.

[0005] The technical solution of the present invention: A mine cave support device for mine safety, including a support frame, the shape of the support frame is arc-shaped, and further includes a support component for supporting the sunken area of the mine cave; The support component includes a top plate slidably connected to the top of the support frame, and a lifting structure, a force-bearing structure, and a retracting structure are respectively arranged at the top of the support frame; The lifting structure is used to control the top plate to lift upward, and the lifting structure includes an airbag, and the airbag is arranged at the bottom of the top plate; The force-bearing structure is used to bear the reaction force of the top plate downward, and the force-bearing structure includes a force-bearing plate, and the force-bearing plate is arranged between the top plate and the airbag; An installation cavity is opened inside the support frame, and the retracting structure is arranged inside the installation cavity, and the retracting structure is used to release the supporting effect of the force-bearing plate; The inner wall of the support frame is provided with a dust reduction component for reducing the dust in the mine cave.

[0006] Optionally, the propping structure further includes an air inlet pipe fixedly connected to one side of the support frame. A transmission pipe is installed inside the support frame. The inside of the air inlet pipe is communicated with the transmission pipe. A connecting pipe is fixedly connected to one side of the transmission pipe. The airbag is installed at the top end of the connecting pipe. A cavity is formed at the top end of the support frame. The airbag is arranged in the cavity. Two sliding grooves are formed on both sides of the inner wall of the cavity. Sliders are slidably connected to the inner walls of the two sliding grooves. A push plate is fixedly connected to the centers of the two sliders. A connecting block is fixedly connected to the top end of the push plate. The connecting block is fixedly connected to the bottom of the top plate.

[0007] Optionally, the force-bearing structure further includes a mounting frame fixedly connected to the top end of the support frame. A spring is fixedly connected to the inner wall of the mounting frame. The force-bearing plate is installed at one end of the spring. One side of the force-bearing plate is inclined. The force-bearing plate is arranged between the top plate and the push plate. A slope is provided at the bottom of the top plate. Multiple groups of grooves are formed at the inclined part of the force-bearing plate.

[0008] Optionally, the retracting structure includes a driving motor fixedly connected to the inner wall of the installation cavity. A rotating rod is fixedly connected to the output end of the driving motor. A pull rope is installed on the outer wall of the rotating rod. The pull rope is wound around the outer wall of the rotating rod. A long groove is formed at the top end of one side of the installation cavity. One end of the pull rope passes through the long groove. One end of the pull rope is fixedly connected to one side of the force-bearing plate. A first bevel gear is fixedly connected to one end of the rotating rod. A second bevel gear is rotatably connected to the bottom of the installation cavity. The first bevel gear meshes with one side of the second bevel gear. A sliding rod is rotatably connected to the inner wall of the installation cavity. The pull rope is arranged at the top end of the sliding rod. The rotating rod, the pull rope, the sliding rod and the first bevel gear are all provided with two, and are symmetrically distributed on both sides of the second bevel gear. One ends of the two pull ropes are respectively fixedly connected to one sides of the two force-bearing plates.

[0009] Optionally, the dust reduction assembly includes a spraying structure. The spraying structure includes a water inlet pipe fixedly connected to one side of the support frame. A storage frame is fixedly connected inside the support frame. The water inlet pipe is fixedly connected to one side of the storage frame. A support plate is fixedly connected to the inner wall of the support frame. There are two support plates which are arranged in parallel at the bottom of the storage frame. A telescopic pipe is fixedly connected to the bottom of the storage frame. A spray head is fixedly connected to the bottom of the telescopic pipe. The spray head is arranged between the two support plates.

[0010] Optionally, one side of the support frame is fixedly connected with a mounting plate, one side of the mounting plate is fixedly connected with a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected with a connecting plate, the top end of the connecting plate is fixedly connected with an arc-shaped plate, one side of the arc-shaped plate is fixedly connected with an inclined block, the bottom of the support plate is fixedly connected with a guiding frame, the inclined block is slidably connected in the guiding frame, there are two inclined blocks, a connecting bar is fixedly connected between the two inclined blocks, the bottom of the support plate is fixedly connected with side plates, the spray head is rotatably connected between the two side plates, and two ball rods are fixedly connected to both sides of the spray head, and the ball rods are arranged on one side of the inclined block.

[0011] Optionally, there are two arc-shaped plates, which are symmetrically distributed on one side of the two inclined blocks. A water absorption pad is fixedly connected to the outer wall of the arc-shaped plate, the water absorption pad is attached to the inner wall of the support frame, an inclined strip is fixedly connected to the edge of the inner wall of the support frame, and multiple groups of drainage holes are formed in the inner wall of the arc-shaped plate.

[0012] Optionally, a cover plate is fixedly connected to one side of the arc-shaped plate, and the cover plate is arranged at the bottom of the guiding frame.

[0013] Optionally, a second hydraulic rod is fixedly connected to the bottom of the support frame, the output end of the second hydraulic rod is fixedly connected with a support block, a third hydraulic rod is fixedly connected to the bottom of the support frame, the output end of the third hydraulic rod is fixedly connected with a bottom plate, a moving wheel is rotatably connected to the bottom of the bottom plate, and the bottom plate is arranged inside the support block.

[0014] Optionally, a sleeve frame is fixedly connected to the top end of one side of the support block, a sliding plate is fixedly connected to the bottom of the support frame, and the sliding plate is slidably connected to the inner wall of the sleeve frame.

[0015] Compared with the prior art, the present application includes at least one of the following beneficial technical effects: 1. By providing the support frame, it can support the top of the mine tunnel. By providing the support assembly, when it is necessary to support the sunken part of the mine tunnel, the airbag in the lifting structure can be used to jack up the roof plate, so that the roof plate fits the sunken part of the mine tunnel. By providing the force-bearing structure, after the roof plate fits the sunken part of the mine tunnel, the groove at the inclined part of the force-bearing plate can cooperate with the roof plate to transfer the reaction force received by the roof plate to the support frame, providing stable support for the bottom of the roof plate, and solving the problem that the support force is unevenly distributed at the sunken part of the top of the mine tunnel; 2. By providing the dust reduction assembly, in a dusty environment, the spray head can generate water mist to reduce the dust in the mine tunnel. By providing structures such as the first hydraulic rod, the arc-shaped plate, the inclined block, the connecting block, and the ball rod, the orientation of the spray head can be changed by driving the first hydraulic rod, so as to expand the dust reduction range of the spray head. By providing a water absorption pad on the arc-shaped plate, the water attached to the inner wall of the support frame can be absorbed, and when the water absorption pad passes through the inclined strip, the inclined strip cooperates with the arc-shaped plate to squeeze out the water in the water absorption pad. Brief Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of a mine shaft support device for mine safety; Figure 2 It is a schematic sectional structure diagram of a mine shaft support device for mine safety Figure 1 ; Figure 3 It is Figure 2 an enlarged schematic diagram of part A of Figure 4 It is a schematic diagram of the transfer pipe and airbag of a mine shaft support device for mine safety; Figure 5 It is a schematic sectional structure diagram of a mine shaft support device for mine safety Figure 2 ; Figure 6 It is Figure 5 an enlarged schematic diagram of part B of Figure 7 It is Figure 5 an enlarged schematic diagram of part C of Figure 8 It is a schematic diagram of the roof plate of a mine shaft support device for mine safety; Figure 9 It is a schematic diagram of the retraction structure of a mine shaft support device for mine safety; Figure 10 It is a schematic diagram of the storage box and spray head structure of a mine shaft support device for mine safety; Figure 11 It is a schematic diagram of the first hydraulic rod and inclined block of a mine shaft support device for mine safety; Figure 12 It is a schematic diagram of the inclined block and guiding frame of a mine shaft support device for mine safety; Figure 13 It is a schematic diagram of the arc plate and water absorption pad of a mine shaft support device for mine safety.

[0017] Reference numerals: 1, support frame; 2, intake pipe; 3, transfer pipe; 4, connecting pipe; 5, airbag; 6, push plate; 7, connecting block; 8, top plate; 9, slider; 10, mounting frame; 11, spring; 12, force-bearing plate; 13, mounting cavity; 14, drive motor; 15, rotating rod; 16, pulling rope; 17, sliding rod; 18, first bevel gear; 19, second bevel gear; 20, water inlet pipe; 21, storage frame; 22, support plate; 23, telescopic pipe; 24, spray head; 25, side plate; 27, cue stick; 28, guiding frame; 29, inclined block; 30, connecting bar; 31, arc plate; 32, connecting plate; 33, mounting plate; 34, first hydraulic rod; 35, water absorption pad; 36, inclined bar; 37, drain hole; 38, cover plate; 39, second hydraulic rod; 40, support block; 41, third hydraulic rod; 42, bottom plate; 43, moving wheel; 44, sleeve frame; 45, sliding plate. Detailed implementation manners

[0018] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] As Figures 1 - 13 shown, a mine cave support device for mine safety proposed by the present invention includes a support frame 1. The shape of the support frame 1 is arc-shaped. It further includes a support component for supporting the sunken part of the mine cave. The support component is arranged on the top of the support frame 1 and is used to support the sunken part of the mine cave, effectively avoiding the problem of potential safety hazards caused by insufficient contact area.

[0020] In this embodiment, the support component includes a top plate 8 slidably connected to the top end of the support frame 1. The top of the support frame 1 is respectively provided with a lifting structure, a force-bearing structure and a retracting structure. It should be noted that in order to solve the problem that the support force is unevenly distributed at the sunken part of the mine cave roof, when the mine cave needs to be supported, the support frame 1 can be transported into the mine cave and installed in close contact with the top of the mine cave. After the support frame 1 is installed, gas can be injected into the lifting structure through an air pump, and the gas will flow into multiple airbags 5 and cause the airbags 5 to bulge. After the airbags 5 bulge, they will push the top plate 8 upward. When the top plate 8 moves upward, it will abut against the top of the mine cave. When encountering a sunken part, the airbags 5 can bulge more, and the top plate 8 can abut against the sunken part, so that the sunken part of the mine cave can also receive a support force, which is beneficial to the uniform force on the top of the mine cave.

[0021] As Figures 2 - 4, wherein, the supporting structure is used to control the top plate 8 to jack up, and the supporting structure includes an airbag 5, the airbag 5 is arranged at the bottom of the top plate 8, so that the top plate 8 can provide support for the sunken part of the mine tunnel; the supporting structure further includes an air inlet pipe 2, the air inlet pipe 2 is fixedly connected to one side of the support frame 1, the supporting structure further includes an air inlet pipe 2, the air inlet pipe 2 is fixedly connected to one side of the support frame 1, a transmission pipe 3 is installed inside the support frame 1, the inside of the air inlet pipe 2 is communicated with the transmission pipe 3, a connecting pipe 4 is fixedly connected to one side of the transmission pipe 3, the airbag 5 is installed at the top end of the connecting pipe 4, a cavity is opened at the top end of the support frame 1, the airbag 5 is arranged in the cavity, two sliding grooves are opened on both sides of the inner wall of the cavity, two sliding blocks 9 are slidably connected to the inner walls of the two sliding grooves, a push plate 6 is fixedly connected to the centers of the two sliding blocks 9, a connecting block 7 is fixedly connected to the top end of the push plate 6, and the connecting block 7 is fixedly connected to the bottom of the top plate 8.

[0022] When it is necessary to support the sunken part of the mine tunnel, air can be injected into the air inlet pipe 2 through an air pump, and the air will flow into the transmission pipe 3 through the air inlet pipe 2 and be injected into the interiors of multiple airbags 5 through multiple groups of connecting pipes 4, causing the multiple airbags 5 to expand. Since the airbag 5 is arranged in the cavity at the top of the support frame 1, when the airbag 5 expands, it will push the push plate 6 arranged in the cavity to move upward. By arranging two sliding plates 45 on both sides of the push plate 6, when the push plate 6 moves upward, the push plate 6 can be limited by the sliding of the sliding plates 45 in the sliding grooves. When the push plate 6 moves upward, it will drive the connecting block 7 and the top plate 8 to move upward together, and the top end of the top plate 8 will abut against the sunken part of the top of the mine tunnel, so that the contact area between the top plate 8 and the sunken part of the mine tunnel can be increased, facilitating the provision of stable support for the top of the mine tunnel.

[0023] Such as Figure 6 and Figure 8 , the force-bearing structure is used to bear the reaction force of the top plate 8 downward, and the force-bearing structure includes a force-bearing plate 12, the force-bearing plate 12 is arranged between the top plate 8 and the airbag 5, the force-bearing structure further includes a mounting frame 10, the mounting frame 10 is fixedly connected to the top end of the support frame 1, a spring 11 is fixedly connected to the inner wall of the mounting frame 10, the force-bearing plate 12 is installed at one end of the spring 11, one side of the force-bearing plate 12 is inclined, the force-bearing plate 12 is arranged between the top plate 8 and the push plate 6, a slope is arranged at the bottom of the top plate 8, and multiple groups of grooves are opened at the inclined part of the force-bearing plate 12.

[0024] When the push plate 6, the connecting block 7 and the top plate 8 move upward, since a slope is provided at the bottom of the top plate 8, the two force-bearing plates 12 will gradually move toward the bottom of the top plate 8 under the action of the springs 11. Since one side of the force-bearing plate 12 is inclined, it can support the top plate 8 at different heights through its inclined part. Multiple groups of grooves are provided at the inclined part of the force-bearing plate 12. When the bottom of the top plate 8 touches the grooves, it will abut against the inner wall of the grooves, so that the reaction force received by the top plate 8 is transmitted to the two force-bearing plates 12 and then transmitted downward to the support frame 1 through the force-bearing plates 12, thereby making the support effect of the top plate 8 more stable.

[0025] As Figure 6 , Figure 8 and Figure 9 , an installation cavity 13 is provided inside the support frame 1, the retracting structure is arranged inside the installation cavity 13, the retracting structure is used to cancel the support effect of the force-bearing plate 12, the retracting structure includes a driving motor 14, the driving motor 14 is fixedly connected to the inner wall of the installation cavity 13, the output end of the driving motor 14 is fixedly connected to a rotating rod 15, a pulling rope 16 is installed on the outer wall of the rotating rod 15, the pulling rope 16 is wound around the outer wall of the rotating rod 15, a long groove is provided at the top end of one side of the installation cavity 13, one end of the pulling rope 16 passes through the long groove, one end of the pulling rope 16 is fixedly connected to one side of the force-bearing plate 12, a first bevel gear 18 is fixedly connected to one end of the rotating rod 15, a second bevel gear 19 is rotatably connected to the bottom of the installation cavity 13, the first bevel gear 18 meshes with one side of the second bevel gear 19, a sliding rod 17 is rotatably connected to the inner wall of the installation cavity 13, the pulling rope 16 is arranged at the top end of the sliding rod 17, the rotating rod 15, the pulling rope 16, the sliding rod 17 and the first bevel gear 18 are all provided with two and are symmetrically distributed on both sides of the second bevel gear 19, and one ends of the two pulling ropes 16 are respectively fixedly connected to one side of the two force-bearing plates 12.

[0026] When the stress plate 12 moves towards the bottom of the top plate 8, the driving motor 14 can be started to drive the rotating rod 15 to rotate. When a group of rotating rods 15 rotate, the externally wound pull rope 16 will be relaxed, so that the stress plate 12 can pull the pull rope 16 to move together when moving. When a group of rotating rods 15 rotate, they will drive a group of first bevel gears 18 to rotate, and drive the second bevel gear 19 to rotate through a group of first bevel gears 18. When the second bevel gear 19 rotates, it will drive another group of first bevel gears 18 and rotating rods 15 to rotate. Since the two rotating rods 15 rotate in opposite directions, the other group of pull ropes 16 can be released; when it is necessary to retract the top plate 8, the driving motor 14 can be rotated in the reverse direction, so as to drive the second bevel gear 19 and the two rotating rods 15 and the first bevel gears 18 to rotate in the reverse direction. At the same time, the two rotating rods 15 and the first bevel gears 18 rotate in opposite directions, so that the two pull ropes 16 can be wound onto the two rotating rods 15 at the same time. When the pull ropes 16 are retracted, the two stress plates 12 can be pulled back into the installation frame 10 and moved away from the bottom of the top plate 8 at the same time, so as to release the support of the bottom of the top plate 8, which is convenient for the air bag 5 to contract by pumping out the gas in the air bag 5. At the same time, the push plate 6, the connecting block 7 and the top plate 8 will move downward due to gravity, which is convenient for retracting the top plate 8 and releasing the support of the sunken part of the mine tunnel.

[0027] As Figure 10 and Figure 11 , a dust reduction component for reducing the dust in the mine tunnel is arranged on the inner wall of the support frame 1. The dust reduction component includes a spraying structure. The spraying structure includes a water inlet pipe 20. The water inlet pipe 20 is fixedly connected to one side of the support frame 1. A storage frame 21 is fixedly connected inside the support frame 1. The water inlet pipe 20 is fixedly connected to one side of the storage frame 21. A support plate 22 is fixedly connected to the inner wall of the support frame 1. There are two support plates 22, and the two support plates 22 are arranged in parallel at the bottom of the storage frame 21. A telescopic pipe 23 is fixedly connected to the bottom of the storage frame 21. The bottom of the telescopic pipe 23 is fixedly connected to a spray head 24. The spray head 24 is arranged between the two support plates 22.

[0028] When mining mineral resources in the mine, the mine tunnel will be filled with dust. Water can be injected into the water inlet pipe 20 through a pump and transmitted into the storage frame 21. By setting the support plate 22, it is convenient to install the storage frame 21 inside the support frame 1. When dust reduction is required, the spray head 24 can be turned on to make the water in the storage frame 21 spray out in a mist shape, which is beneficial to the dust reduction treatment of the dust in the mine tunnel. By setting the telescopic pipe 23, the orientation of the spray head 24 can be adjusted according to the needs.

[0029] As Figures 10 - 12, one side of the support frame 1 is fixedly connected with a mounting plate 33, one side of the mounting plate 33 is fixedly connected with a first hydraulic rod 34, the output end of the first hydraulic rod 34 is fixedly connected with a connecting plate 32, the top end of the connecting plate 32 is fixedly connected with an arc-shaped plate 31, one side of the arc-shaped plate 31 is fixedly connected with an inclined block 29, the bottom of the support plate 22 is fixedly connected with a guiding frame 28, the inclined block 29 is slidably connected in the guiding frame 28, there are two inclined blocks 29, and a connecting bar 30 is fixedly connected between the two inclined blocks 29, the bottom of the support plate 22 is fixedly connected with side plates 25, the spray head 24 is rotatably connected between the two side plates 25, and two ball rods 27 are fixedly connected to both sides of the spray head 24, and the ball rods 27 are arranged on one side of the inclined block 29.

[0030] When performing dust reduction treatment, the first hydraulic rod 34 can be started, and the connecting plate 32 and the arc-shaped plate 31 are pushed to move to one side through the first hydraulic rod 34. Since an inclined block 29 is arranged on one side of the arc-shaped plate 31, when the arc-shaped plate 31 moves, the two inclined blocks 29 can be driven to move to one side. By arranging the guiding frame 28, the moving tracks of the two inclined blocks 29 and the connecting bar 30 can be limited. When a group of inclined blocks 29 move to one side of the ball rod 27, the ball rod 27 will be pushed to one side. Since the spray head 24 is rotatably connected between the two side plates 25, when a group of ball rods 27 are pushed, the spray head 24 will rotate to one side, and the orientation of the spray head 24 can be changed. The telescopic pipe 23 can maintain the connection between the spray head 24 and the storage frame 21. When the first hydraulic rod 34 contracts, the two inclined blocks 29 and the connecting bar 30 will move in the opposite direction. When a group of inclined blocks 29 move away from one side of the ball rod 27, the spray head 24 can gradually be perpendicular to the ground due to the gravity on the nozzle at the bottom of the spray head 24. When the other group of inclined blocks 29 contact the other group of ball rods 27, the spray head 24 will turn to the other side, so that the orientation of the spray head 24 can be reciprocally changed to promote the uniform spraying of water mist on the mine dust in the mine tunnel, which is beneficial to dust reduction in the mine tunnel.

[0031] Such as Figure 3 and Figure 13 , there are two arc-shaped plates 31, which are symmetrically distributed on one side of the two inclined blocks 29. The outer wall of the arc-shaped plate 31 is fixedly connected with a water absorption pad 35, the water absorption pad 35 is attached to the inner wall of the support frame 1, the edge of the inner wall of the support frame 1 is fixedly connected with an inclined strip 36, and a plurality of groups of drainage holes 37 are opened on the inner wall of the arc-shaped plate 31.

[0032] When the two arc-shaped plates 31 reciprocate, they can drive multiple groups of water absorption pads 35 to slide on the inner wall of the support frame 1. Since the water absorption pads 35 are attached to the inner wall of the support frame 1, when the water absorption pads 35 slide, they will adsorb the water droplets stained on the inner wall of the support frame 1, preventing water from adhering to the inner wall of the support frame 1 for a long time and causing corrosion to the support frame 1. When the arc-shaped plate 31 moves onto the inclined strip 36, through the interaction between the inclined strip 36 and the arc-shaped plate 31, the water absorption pads 35 on the arc-shaped plate 31 will be squeezed, so that the water adsorbed on the water absorption pads 35 is squeezed out, and the water will drip downward through the drain holes 37 provided on the arc-shaped plate 31.

[0033] As Figure 11 , one side of the arc-shaped plate 31 is fixedly connected with a cover plate 38, and the cover plate 38 is arranged at the bottom of the guiding frame 28.

[0034] By arranging multiple groups of cover plates 38 on the arc-shaped plate 31, when the arc-shaped plate 31 moves, it can drive the cover plates 38 to move together. The length of the cover plates 38 enables them to always remain on one side of the guiding frame 28. Therefore, when the spray head 24 sprays water mist, the guiding frame 28 can be closed by the cover plates 38 to prevent the water mist from entering and accumulating in the guiding frame 28.

[0035] As Figure 7 , a second hydraulic rod 39 is fixedly connected to the bottom of the support frame 1. The output end of the second hydraulic rod 39 is fixedly connected with a support block 40. A third hydraulic rod 41 is fixedly connected to the bottom of the support frame 1. The output end of the third hydraulic rod 41 is fixedly connected with a bottom plate 42. The bottom of the bottom plate 42 is rotatably connected with a moving wheel 43, and the bottom plate 42 is arranged inside the support block 40.

[0036] When it is necessary to adjust the height of the support frame 1, the second hydraulic rod 39 can be started. Since the second hydraulic rod 39 is arranged between the support frame 1 and the support block 40, when the second hydraulic rod 39 is started, the distance between the support frame 1 and the support block 40 can be increased, so as to lift the height of the support frame 1, facilitating the support frame 1 to fit against the top of the mine tunnel and providing stable support for the mine tunnel. When it is necessary to move the support frame 1, the second hydraulic rod 39 can be contracted to lower the position of the support frame 1. Then, the third hydraulic rod 41 is driven to push the bottom plate 42 and the moving wheel 43 downward, so that the bottom of the moving wheel 43 contacts the ground, thus facilitating the removal of the support frame 1 from the mine tunnel by the sliding of the moving wheel 43.

[0037] As Figure 1 and Figure 7 , a sleeve frame 44 is fixedly connected to the top end of one side of the support block 40. A sliding plate 45 is fixedly connected to the bottom of the support frame 1, and the sliding plate 45 is slidably connected to the inner wall of the sleeve frame 44.

[0038] By setting a sleeve frame 44 on the top of the support block 40, when the support frame 1 moves upward, the sliding plate 45 can be driven to slide inside the sleeve frame 44. The cooperation between the sleeve frame 44 and the sliding plate 45 can keep the connection between the support frame 1 and the support block 40 closed, preventing the operators or machinery in the mine tunnel from bumping into the second hydraulic rod 39 and the third hydraulic rod 41 when passing by, and providing protection for the second hydraulic rod 39 and the third hydraulic rod 41.

[0039] Working principle: To solve the problem that the support force is prone to be uneven due to the depression at the top of the mine tunnel, when the mine tunnel needs to be supported, the second hydraulic rod 39 can be retracted to lower the position of the support frame 1. Subsequently, the third hydraulic rod 41 is driven to push the bottom plate 42 and the moving wheels 43 downward, so that the bottom of the moving wheels 43 touches the ground, facilitating the transportation of the support frame 1 into the mine tunnel by the sliding of the moving wheels 43. Then, the second hydraulic rod 39 is started. Since the second hydraulic rod 39 is arranged between the support frame 1 and the support block 40, when the second hydraulic rod 39 is started, the distance between the support frame 1 and the support block 40 can be increased, thereby raising the height of the support frame 1 and facilitating the support frame 1 to fit against the top of the mine tunnel, providing stable support for the mine tunnel. Through the cooperation of the sleeve frame 44 and the sliding plate 45, the connection between the support frame 1 and the support block 40 can be kept closed, preventing the operators or machinery in the mine tunnel from bumping into the second hydraulic rod 39 and the third hydraulic rod 41; When it is necessary to support the sunken part of the mine cave, air can be injected into the intake pipe 2 through an air pump. The air will flow into the transmission pipe 3 through the intake pipe 2 and be injected into the interiors of multiple air bags 5 through multiple connecting pipes 4, causing the multiple air bags 5 to expand. Since the air bags 5 are arranged in the cavity at the top of the support frame 1, when the air bags 5 expand, they will push the push plate 6 arranged in the cavity to move upward. By arranging two sliding plates 45 on both sides of the push plate 6, when the push plate 6 moves upward, the sliding plates 45 can slide in the sliding grooves to limit the position of the push plate 6. When the push plate 6 moves upward, it will drive the connecting block 7 and the top plate 8 to move upward together, and the top of the top plate 8 will abut against the sunken part at the top of the mine cave, so that the contact area with the sunken part of the mine cave can be increased through the top plate 8. When the push plate 6, the connecting block 7, and the top plate 8 move upward, start the driving motor 14 to drive the rotating rod 15 to rotate. When a group of rotating rods 15 rotate, the externally wound pull rope 16 will be relaxed, so that the stress plate 12 can pull the pull rope 16 to move together when moving. When a group of rotating rods 15 rotate, they will drive a group of first bevel gears 18 to rotate, and drive the second bevel gear 19 to rotate through a group of first bevel gears 18. When the second bevel gear 19 rotates, it will drive another group of first bevel gears 18 and rotating rods 15 to rotate. Since the two rotating rods 15 rotate in opposite directions, the other group of pull ropes 16 can be released. Since the bottom of the top plate 8 is provided with a slope, the two stress plates 12 will gradually move towards the bottom of the top plate 8 under the action of the springs 11. Since one side of the stress plate 12 is inclined, the top plate 8 at different heights can be supported through its inclined part. Multiple grooves are arranged at the inclined part of the stress plate 12. When the bottom of the top plate 8 touches the grooves, it will abut against the inner walls of the grooves, so that the reaction force received by the top plate 8 is transmitted to the two stress plates 12 and then transmitted downward to the support frame 1 through the stress plates 12, so as to provide a stable support for the top of the mine cave, enable the sunken part of the mine cave to also receive a supporting force, and is beneficial to the uniform force on the top of the mine cave; When it is necessary to retract the top plate 8, the driving motor 14 can be rotated in the reverse direction, thereby driving the second bevel gear 19 and the two rotating rods 15 and the first bevel gears 18 to rotate in the reverse direction. At the same time, the two rotating rods 15 and the first bevel gears 18 rotate in opposite directions, so the two pull ropes 16 can be wound onto the two rotating rods 15 at the same time. When the pull ropes 16 are retracted, the two stress plates 12 can be pulled back into the installation frame 10 and at the same time move away from the bottom of the top plate 8, so as to release the support for the bottom of the top plate 8, which is convenient for the air bags 5 to contract by pumping out the gas in the air bags 5. At the same time, the push plate 6, the connecting block 7, and the top plate 8 will move downward due to gravity, which is convenient for retracting the top plate 8 and releasing the support for the sunken part of the mine cave; Inject water into the water inlet pipe 20 through a pump, and transfer the water into the storage frame 21. By setting the support plate 22, it is convenient to install the storage frame 21 inside the support frame 1. When dust suppression is required, the spray head 24 can be turned on to turn the water in the storage frame 21 into a mist and spray it out, which is beneficial for dust suppression of the mine dust in the mine. By starting the first hydraulic rod 34 and pushing the connecting plate 32 and the arc plate 31 to move to one side, since there are inclined blocks 29 on one side of the arc plate 31, when the arc plate 31 moves, the two inclined blocks 29 can be driven to move to one side. By setting the guiding frame 28, the moving trajectories of the two inclined blocks 29 and the connecting bar 30 can be limited. When a set of inclined blocks 29 moves to one side of the cue 27, the cue 27 will be pushed to one side. Since the spray head 24 is rotatably connected between the two side plates 25, when a set of cues 27 is pushed, the spray head 24 will rotate to one side, and the orientation of the spray head 24 can be changed. The telescopic pipe 23 can maintain the connection between the spray head 24 and the storage frame 21. When the first hydraulic rod 34 contracts, the two inclined blocks 29 and the connecting bar 30 will move in the opposite direction. When a set of inclined blocks 29 moves away from one side of the cue 27, the spray head 24 can gradually be perpendicular to the ground due to the gravity of the nozzle at the bottom of the spray head 24. When another set of inclined blocks 29 contacts another set of cues 27, the spray head 24 will turn to the other side, so that the orientation of the spray head 24 can be reciprocally changed to promote the uniform spraying of water mist on the mine dust in the mine, which is beneficial for dust suppression in the mine; When the two arc plates 31 reciprocate, multiple groups of water absorption pads 35 can be driven to slide on the inner wall of the support frame 1. Since the water absorption pads 35 are attached to the inner wall of the support frame 1, when the water absorption pads 35 slide, the water droplets stained on the inner wall of the support frame 1 will be adsorbed, preventing water from adhering to the inner wall of the support frame 1 for a long time and causing corrosion to the support frame 1. When the arc plate 31 moves onto the inclined strip 36, through the interaction between the inclined strip 36 and the arc plate 31, the water absorption pads 35 on the arc plate 31 will be squeezed, so that the water adsorbed on the water absorption pads 35 is squeezed out, and the water is discharged downward through the drainage holes 37 provided on the arc plate 31 to prevent water from accumulating on the arc plate 31.

[0040] The above specific embodiments are only several alternative embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A mine cave support device for mine safety, including a support frame (1), the shape of the support frame (1) is arc-shaped, and it is characterized in that: It further includes a support component for supporting the sunken part of the mine cave; The support component includes a top plate (8) slidably connected to the top end of the support frame (1). The top of the support frame (1) is respectively provided with a lifting structure, a force-bearing structure and a retracting structure; The lifting structure is used to control the top plate (8) to lift upwards. The lifting structure includes an airbag (5), and the airbag (5) is arranged at the bottom of the top plate (8); The force-bearing structure is used to bear the reaction force of the top plate (8) downward. The force-bearing structure includes a force-bearing plate (12), and the force-bearing plate (12) is arranged between the top plate (8) and the airbag (5); An installation cavity (13) is opened inside the support frame (1), and the retracting structure is arranged inside the installation cavity (13). The retracting structure is used to release the supporting effect of the force-bearing plate (12); The inner wall of the support frame (1) is provided with a dust-removing component for reducing the mine dust in the mine cave.

2. The mine cave support device for mine safety according to claim 1, characterized in that, The lifting structure further includes an air inlet pipe (2). The air inlet pipe (2) is fixedly connected to one side of the support frame (1). A transmission pipe (3) is installed inside the support frame (1). The inside of the air inlet pipe (2) is communicated with the transmission pipe (3). One side of the transmission pipe (3) is fixedly connected with a connecting pipe (4). The airbag (5) is installed at the top end of the connecting pipe (4). A cavity is opened at the top end of the support frame (1). The airbag (5) is arranged in the cavity. Two sliding grooves are opened on both sides of the inner wall of the cavity. The inner walls of the two sliding grooves are both slidably connected with sliders (9). A push plate (6) is fixedly connected at the center of the two sliders (9). A connecting block (7) is fixedly connected to the top end of the push plate (6). The connecting block (7) is fixedly connected to the bottom of the top plate (8).

3. The mine cave support device for mine safety according to claim 2, characterized in that, The force-bearing structure further includes an installation frame (10). The installation frame (10) is fixedly connected to the top end of the support frame (1). A spring (11) is fixedly connected to the inner wall of the installation frame (10). The force-bearing plate (12) is installed at one end of the spring (11). One side of the force-bearing plate (12) is inclined. The force-bearing plate (12) is arranged between the top plate (8) and the push plate (6). A slope is arranged at the bottom of the top plate (8). Multiple groups of grooves are opened at the inclined part of the force-bearing plate (12).

4. A mine cave support device for mine safety according to claim 3, characterized in that, The retracting structure includes a driving motor (14), the driving motor (14) is fixedly connected to the inner wall of the installation cavity (13), a rotating rod (15) is fixedly connected to the output end of the driving motor (14), a pulling rope (16) is installed on the outer wall of the rotating rod (15), the pulling rope (16) is wound around the outer wall of the rotating rod (15), a long groove is opened at the top of one side of the installation cavity (13), one end of the pulling rope (16) passes through the long groove, one end of the pulling rope (16) is fixedly connected to one side of the force-bearing plate (12), a first bevel gear (18) is fixedly connected to one end of the rotating rod (15), a second bevel gear (19) is rotatably connected to the bottom of the installation cavity (13), the first bevel gear (18) is engaged with one side of the second bevel gear (19), a sliding rod (17) is rotatably connected to the inner wall of the installation cavity (13), the pulling rope (16) is arranged at the top of the sliding rod (17), the rotating rod (15), the pulling rope (16), the sliding rod (17) and the first bevel gear (18) are all provided with two, and are symmetrically distributed on both sides of the second bevel gear (19) in a central symmetry manner, and one ends of the two pulling ropes (16) are respectively fixedly connected to one sides of the two force-bearing plates (12).

5. A mine cave support device for mine safety according to claim 4, characterized in that, The dust reduction assembly includes a spraying structure, the spraying structure includes a water inlet pipe (20), the water inlet pipe (20) is fixedly connected to one side of the support frame (1), a storage frame (21) is fixedly connected inside the support frame (1), the water inlet pipe (20) is fixedly connected to one side of the storage frame (21), a support plate (22) is fixedly connected to the inner wall of the support frame (1), there are two support plates (22), the two support plates (22) are arranged in parallel at the bottom of the storage frame (21), a telescopic pipe (23) is fixedly connected to the bottom of the storage frame (21), a spray head (24) is fixedly connected to the bottom of the telescopic pipe (23), and the spray head (24) is arranged between the two support plates (22).

6. The mine cave support device for mine safety according to claim 5, characterized in that, One side of the support frame (1) is fixedly connected with a mounting plate (33), a first hydraulic rod (34) is fixedly connected to one side of the mounting plate (33), a connecting plate (32) is fixedly connected to the output end of the first hydraulic rod (34), an arc-shaped plate (31) is fixedly connected to the top of the connecting plate (32), an inclined block (29) is fixedly connected to one side of the arc-shaped plate (31), a guiding frame (28) is fixedly connected to the bottom of the support plate (22), the inclined block (29) is slidably connected in the guiding frame (28), there are two inclined blocks (29), a connecting bar (30) is fixedly connected between the two inclined blocks (29), a side plate (25) is fixedly connected to the bottom of the support plate (22), the spray head (24) is rotatably connected between the two side plates (25), two ball rods (27) are fixedly connected to both sides of the spray head (24), and the ball rods (27) are arranged on one side of the inclined block (29).

7. The mine cave support device for mine safety according to claim 6, characterized in that, There are two arc-shaped plates (31), which are symmetrically distributed on one side of two inclined blocks (29). A water-absorbing pad (35) is fixedly connected to the outer wall of the arc-shaped plate (31), and the water-absorbing pad (35) is attached to the inner wall of the support frame (1). An inclined strip (36) is fixedly connected to the edge of the inner wall of the support frame (1), and a plurality of groups of drain holes (37) are formed in the inner wall of the arc-shaped plate (31).

8. The mine cave support device for mine safety according to claim 7, wherein, A cover plate (38) is fixedly connected to one side of the arc-shaped plate (31), and the cover plate (38) is arranged at the bottom of the guiding frame (28).

9. The mine cave support device for mine safety according to claim 8, characterized in that, A second hydraulic rod (39) is fixedly connected to the bottom of the support frame (1), and an output end of the second hydraulic rod (39) is fixedly connected to a support block (40). A third hydraulic rod (41) is fixedly connected to the bottom of the support frame (1), and an output end of the third hydraulic rod (41) is fixedly connected to a bottom plate (42). A moving wheel (43) is rotatably connected to the bottom of the bottom plate (42), and the bottom plate (42) is arranged inside the support block (40).

10. A mine cave support device for mine safety according to claim 9, characterized in that, A sleeve frame (44) is fixedly connected to the top end of one side of the support block (40), and a sliding plate (45) is fixedly connected to the bottom of the support frame (1). The sliding plate (45) is slidably connected to the inner wall of the sleeve frame (44).

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