Tunnel mud burst and water burst disaster prevention device and using method thereof

Abstract

The invention relates to the field of tunnel protection equipment, in particular to a tunnel mud bursting and water bursting disaster prevention device and a using method thereof.The tunnel mud bursting and water bursting disaster prevention device comprises a baffle, a protection plate is installed on the baffle, a first water filtering hole is formed in the protection plate, and a first filter screen is fixedly connected into the first water filtering hole; a first drainage hole communicated with the first water filtering hole is formed in the baffle, a cleaning mechanism is installed on the baffle and comprises a telescopic rod fixedly connected to the baffle, a cleaning plate is fixedly connected to the end, away from the baffle, of the telescopic rod, and a plurality of cleaning columns corresponding to meshes in the first filter screen are fixedly connected to the cleaning plate; the multiple cleaning columns can penetrate through the first drainage holes and are inserted into mesh holes in the first filter screen, first springs are fixedly connected between the cleaning plate and the baffle, and a driving mechanism used for driving the cleaning plate to move is installed on the baffle. The problem that the protection effect on mud burst and water burst is affected is solved.

Description

Technical Field

[0001] The present invention relates to the field of tunnel protection equipment, and in particular to a tunnel mud and water inrush disaster prevention device and its use method. Background Art

[0002] As an underground space project, tunnels have been developed and utilized more and more. When a tunnel is excavated, there may be a water-permeable layer or a developed fracture zone of rock strata, and there is a risk of problems such as leakage, and even water inrush and mud burst during construction and operation. Water inrush and mud burst refer to accidents of large-scale water inrush and mud burst when encountering adverse geological conditions such as underground rivers, karst caves, and confined water during the construction of underground projects such as tunnels. Generally, it protrudes rapidly with water, silt, and mud and sand as carriers, and is one of the most serious geological disasters in tunnel construction.

[0003] In the related art, a tunnel mud and water inrush disaster prevention device includes a base and a baffle. The bottom of the base is fixedly connected with rollers to facilitate the movement of the base. The base is fixedly connected to the ground through anchor bolts. The baffle is rotatably installed on the base, and the baffle is closely attached to the rock wall of the tunnel to block mud and water inrush. A cylinder is arranged between the base and the baffle. One end of the cylinder is rotatably connected to the base, and the other end of the cylinder is rotatably connected to the baffle. By starting the cylinder, the inclination angle of the baffle can be adjusted, so that the baffle can better fit the rock wall. A plurality of water filtering holes are opened on the baffle, and filter meshes are fixedly connected in the plurality of water filtering holes. The water filtering holes can drain the water in the rock wall, reduce the acting force of the mud and water inrush on the baffle, and the filter meshes can filter larger particles in the water to prevent the water filtering holes from being blocked.

[0004] In view of the above related art, when the filter mesh is used for a long time, the sediment in the water will block the filter mesh. At this time, the staff needs to remove the baffle from the rock wall to clean the filter mesh. During this disassembly period, the baffle cannot effectively block the mud and water inrush, thus affecting the protection effect against mud and water inrush. Summary of the Invention

[0005] In order to solve the problem of affecting the protection effect against mud and water inrush, the present invention provides a tunnel mud and water inrush disaster prevention device and its use method.

[0006] In a first aspect, a tunnel mud and water inrush disaster prevention device provided by the present invention adopts the following technical solution:

[0007] A tunnel mud and water inrush disaster prevention device, including a baffle plate, a protective plate is installed on one side of the baffle plate close to the rock wall, a first water filtering hole is opened on the protective plate, a first filter screen is fixedly connected in the first water filtering hole, a first drainage hole communicated with the first water filtering hole is opened on the baffle plate, a cleaning mechanism is installed on the side of the baffle plate away from the protective plate, the cleaning mechanism includes a telescopic rod fixedly connected to the baffle plate, a cleaning plate is fixedly connected to the end of the telescopic rod away from the baffle plate, a plurality of cleaning columns respectively corresponding to the mesh holes on the first filter screen are fixedly connected to the cleaning plate, and a plurality of the cleaning columns can all pass through the first drainage hole and be inserted into the mesh holes on the first filter screen, a first spring is fixedly connected between the cleaning plate and the baffle plate, and a driving mechanism for driving the cleaning plate to move is installed on the baffle plate.

[0008] Preferably, a mounting plate is fixedly connected to the side of the baffle plate away from the protective plate, the driving mechanism includes a driving motor fixedly connected to the mounting plate, a driving screw rod is fixedly connected to the output shaft of the driving motor, a driving guide rod is fixedly connected to the mounting plate, a driving plate is arranged on one side of the baffle plate, the driving screw rod and the driving guide rod both penetrate through the driving plate, the driving screw rod is in threaded connection with the driving plate, a butting plate is hingedly connected to the driving plate, the hinge shaft installed in the butting plate is located on the side of the butting plate away from the driving motor, a torsion spring is sleeved on the hinge shaft installed in the butting plate, a butting inclined surface is formed on the side of the butting plate away from the driving motor, and the butting inclined surface can contact with the cleaning plate.

[0009] Preferably, an induction groove for placing the protective plate is opened on the baffle plate, the protective plate is slidably installed in the induction groove, a butting spring is fixedly connected between the inner wall of the induction groove and the protective plate, a first telescopic sleeve is arranged in the induction groove, one end of the first telescopic sleeve is fixedly connected to the protective plate and communicated with the first water filtering hole, the other end of the first telescopic sleeve is fixedly connected to the inner wall of the induction groove and communicated with the first drainage hole, a storage battery electrically connected to the driving motor through a wire is arranged on the baffle plate, a first switch electrically connected to the storage battery through a wire is arranged on the protective plate, a second switch electrically connected to the driving motor through a wire is arranged on the inner wall of the induction groove, the first switch and the second switch are used in cooperation, and a return component for driving the driving screw rod to reverse is installed on the baffle plate.

[0010] Preferably, the return component includes a first rack slidably installed on the mounting plate, a driving gear meshed with the first rack is fixedly connected to the driving screw rod, and a second spring is fixedly connected between the first rack and the mounting plate.

[0011] Preferably, a connecting rod is inserted through the inner wall of the induction groove, the second switch is arranged on the connecting rod, a third spring is fixedly connected between the connecting rod and the inner wall of the induction groove, a locking mechanism for locking the connecting rod is installed on the protection plate, an ejecting mechanism is installed in the induction groove, the ejecting mechanism includes an ejecting threaded cylinder rotatably installed on the inner wall of the induction groove and an ejecting screw rod inserted through the ejecting threaded cylinder, the ejecting screw rod abuts against the protection plate, an ejecting guide rod is fixedly connected to the inner wall of the induction groove, the ejecting guide rod is inserted through the ejecting screw rod, a transmission component is installed on the baffle, and the driving screw rod can drive the ejecting threaded cylinder to rotate through the transmission component.

[0012] Preferably, the transmission component includes a transmission rotating shaft rotatably installed on the inner wall of the induction groove, the transmission rotating shaft extends to the outside of the baffle, a conveyor belt is sleeved on the transmission rotating shaft and the ejecting threaded cylinder, a first bevel gear is fixedly connected to the transmission rotating shaft, a smooth section is arranged at one end of the driving screw rod away from the driving motor, a fourth spring capable of abutting against the driving plate is fixedly connected to the baffle, a second bevel gear rotatably connected to the driving plate is sleeved on the driving screw rod, the second bevel gear is slidably connected to the driving screw rod, the second bevel gear can be meshed with the first bevel gear, a second rack is slidably installed on the inner wall of the induction groove, a second gear meshed with the second rack is fixedly connected to the ejecting threaded cylinder, and a fifth spring is fixedly connected between the second rack and the inner wall of the induction groove.

[0013] Preferably, the locking mechanism includes a mounting rod fixedly connected to the protection plate, a mounting groove is formed in the mounting rod, a locking spring is fixedly connected to the inner wall of the mounting groove, a locking block is slidably installed in the mounting groove, the locking spring is fixedly connected to the locking block, a plugging groove for the locking block to insert is formed in the side wall of the connecting rod, a locking inclined surface is formed on the end surface of the locking block facing the connecting rod, a pull rod is fixedly connected to the end surface of the locking block away from the connecting rod, the pull rod extends to the outside of the mounting rod, a pull plate is fixedly connected to the pull rod, an L-shaped fixing rod is fixedly connected to the inner wall of the induction groove, a matching plate is fixedly connected to the L-shaped fixing rod, and a matching inclined surface capable of contacting the matching plate is formed on the end surface of the pull plate facing the matching plate.

[0014] Preferably, second water filtering holes are formed in the protection plate, and second filter meshes are fixedly connected in the second water filtering holes. Second drain holes communicating with the second water filtering holes are formed in the baffle plate. A second telescopic sleeve is arranged in the induction groove. One end of the second telescopic sleeve is fixedly connected with the protection plate and communicates with the second water filtering holes. The other end of the second telescopic sleeve is fixedly connected with the inner wall of the induction groove and communicates with the second drain holes. A blocking mechanism is arranged in the second water filtering holes. The blocking mechanism includes a blocking plate rotatably installed in the second water filtering holes. A plurality of blocking columns corresponding to the mesh holes on the second filter meshes are fixedly connected to the blocking plate. The plurality of blocking columns are respectively inserted into the mesh holes on the second filter meshes. A connecting groove is formed in the inner wall of the second water filtering holes. A limiting spring is fixedly connected to the inner wall of the connecting groove. A limiting block is slidably installed in the connecting groove. The limiting spring is fixedly connected with the limiting block. A limiting groove for the limiting block to insert is formed in the blocking plate. An electromagnet is fixedly connected to the inner wall of the connecting groove. The electromagnet is electrically connected with the storage battery and the first switch through wires. An iron block used in cooperation with the electromagnet is fixedly connected to the limiting block. A transmission mechanism is installed on the protection plate. The transmission rotating shaft can drive the blocking plate to rotate through the transmission mechanism.

[0015] Preferably, an installation cavity is formed in the protection plate. The transmission mechanism includes a transmission threaded cylinder rotatably installed in the installation cavity and a transmission screw rod penetrating through the transmission threaded cylinder. The transmission screw rod extends into the second water filtering holes and abuts against the blocking plate. The transmission screw rod is slidably connected with the inner wall of the protection plate. A first rotating shaft is rotatably installed in the installation cavity. The first rotating shaft and the transmission threaded cylinder are connected through a bevel gear set. The first rotating shaft extends to the outside of the protection plate. A second rotating shaft, a third rotating shaft and a fourth rotating shaft are rotatably installed on the protection plate. A conveyor belt is sleeved on the first rotating shaft and the second rotating shaft. A conveyor belt is sleeved on the second rotating shaft and the third rotating shaft. A conveyor belt is sleeved on the third rotating shaft and the fourth rotating shaft. A square groove is formed in the fourth rotating shaft. A square rod placed in the square groove is fixedly connected to the transmission rotating shaft.

[0016] Second, a usage method of a tunnel mud and water inrush disaster prevention device provided by the present invention adopts the following technical solution:

[0017] A usage method of a tunnel mud and water inrush disaster prevention device includes the following steps:

[0018] S1. First, anchor the base in the tunnel through bolts, and then start the cylinder. The cylinder drives the baffle plate to turn over, and presses the protection plate tightly against the rock wall of the tunnel.

[0019] S2. After a period of time, the first filter screen becomes blocked. The protective plate is retracted into the induction groove under the action of the sudden gushing water, causing the first switch to contact the second switch, starting the driving motor. The abutting plate pushes the cleaning column to move, cleaning the first filter screen. At the same time, the sealing plate separates from the second filter screen, and the water in the rock wall can be discharged through the second filter screen;

[0020] S3. After the first filter screen is cleaned, the ejecting screw rod pushes the protective plate to move, and the protective plate compacts the soil on the rock wall;

[0021] S4. After the first switch separates from the second switch, the driving motor shuts down, and the limiting block is inserted into the limiting groove, and the sealing plate seals the second filter screen.

[0022] In summary, the present invention includes at least the following beneficial technical effects:

[0023] 1. The water in the rock wall first enters the first water filtering holes through the first filter screen, and then is discharged through the first drainage holes. When the first filter screen is blocked after long-term use, the driving mechanism is started. The driving mechanism drives the cleaning plate to move, the cleaning plate drives the cleaning column to move, and compresses the first spring. The cleaning column pushes the sediment in the mesh holes of the first filter screen out. During the operation of the protective plate, the cleaning of the first filter screen can be completed, solving the problem of affecting the protection effect against sudden mud and gushing water;

[0024] 2. When the first switch contacts the second switch, the locking mechanism locks the connecting rod and the protective plate, making the first switch and the second switch continuously contact. After the first filter screen is cleaned, the driving screw drives the ejecting threaded cylinder to rotate through the transmission component. The ejecting threaded cylinder drives the ejecting screw rod to move, and the ejecting screw rod pushes the protective plate to extend from the induction groove, compacting the soil on the rock wall and reducing the force generated by the sudden mud and gushing water on the protective plate;

[0025] 3. When the protective plate is retracted into the induction groove, the first switch contacts the second switch, the storage battery energizes the electromagnet, the electromagnet attracts the iron block, the iron block drives the limiting block to move, compressing the limiting spring. When the limiting block disengages from the limiting groove, the water in the rock wall enters the second water filtering holes through the second filter screen, impacts the sealing plate, and pushes the sealing plate to flip, opening the sealing plate. The water is discharged through the second telescopic sleeve and the second drainage holes, and the water can be discharged faster, reducing the force generated by the sudden mud and gushing water on the protective plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is the overall structural schematic diagram of the tunnel sudden mud and gushing water disaster prevention device of the embodiment of the present invention.

[0027] Figure 2It is a schematic structural diagram of the protective plate according to an embodiment of the present invention.

[0028] Figure 3 It is a schematic structural diagram of the cleaning mechanism according to an embodiment of the present invention.

[0029] Figure 4 It is a schematic structural diagram of the driving mechanism according to an embodiment of the present invention.

[0030] Figure 5 It is a schematic structural diagram of the ejecting mechanism according to an embodiment of the present invention.

[0031] Figure 6 It is a schematic structural diagram of the locking mechanism according to an embodiment of the present invention.

[0032] Figure 7 It is a schematic structural diagram of the second telescopic sleeve according to an embodiment of the present invention.

[0033] Figure 8 It is a schematic structural diagram of the plugging mechanism according to an embodiment of the present invention.

[0034] Figure 9 It is a schematic structural diagram of the transmission mechanism according to an embodiment of the present invention.

[0035] Figure 10 It is a schematic structural diagram of the limit block according to an embodiment of the present invention.

[0036] Description of reference numerals: 1. Baffle; 11. First drain hole; 12. Mounting plate; 13. Induction groove; 14. Abutting spring; 15. First telescopic sleeve; 16. First switch; 17. Second switch; 18. Second drain hole; 19. Second telescopic sleeve; 2. Protective plate; 21. First water filtering hole; 22. First filter screen; 23. Second water filtering hole; 24. Second filter screen; 3. Cleaning mechanism; 31. Telescopic rod; 32. Cleaning plate; 33. Cleaning column; 34. First spring; 35. Connecting rod; 36. Third spring; 4. Driving mechanism; 41. Driving motor; 42. Driving screw; 421. Driving gear; 422. Second bevel gear; 43. Driving plate; 44. Abutting plate; 45. First rack; 46. Second spring; 47. Fourth spring; 5. Locking mechanism; 51. Mounting rod; 511. Mounting groove; 52. Locking spring; 53. Locking block; 54. Pull rod; 55. Pulling plate; 56. L-shaped fixing rod; 57. Fitting plate; 6. Ejecting mechanism; 61. Ejecting threaded cylinder; 611. Second gear; 62. Ejecting screw; 63. Transmission rotating shaft; 631. First bevel gear; 64. Second rack; 65. Fifth spring; 7. Sealing mechanism; 71. Sealing plate; 72. Sealing column; 73. Limiting spring; 74. Limiting block; 75. Electromagnet; 76. Iron block; 8. Transmission mechanism; 81. Transmission threaded cylinder; 82. Transmission screw; 83. First rotating shaft; 84. Second rotating shaft; 85. Third rotating shaft; 86. Fourth rotating shaft; 9. Base. Detailed implementation manners

[0037] The following is a further detailed description of the present invention in conjunction with the attached Figure 1 - attached Figure 10 drawings.

[0038] An embodiment of the present invention discloses a tunnel mud and water inrush disaster prevention device and its usage method. Refer to Figures 1 to 5, the anti-disaster device for tunnel mud and water inrush includes a base 9 and a baffle 1. The baffle 1 is rotatably installed on the base 9. A cylinder is installed between the base 9 and the baffle 1. A protective plate 2 is installed on the side of the baffle 1 close to the rock wall. A plurality of first water filtering holes 21 are formed in the protective plate 2. A first filter screen 22 is fixedly connected in each of the plurality of first water filtering holes 21. A plurality of first drainage holes 11 communicating with the first water filtering holes 21 are formed in the baffle 1. A plurality of groups of cleaning mechanisms 3 are installed on the side of the baffle 1 away from the protective plate 2. The plurality of groups of cleaning mechanisms 3 are respectively arranged corresponding to the first filter screen 22. The cleaning mechanism 3 includes a telescopic rod 31. The telescopic rod 31 is fixedly connected to the baffle 1. One end of the telescopic rod 31 away from the baffle 1 is fixedly connected to a cleaning plate 32. A plurality of cleaning columns 33 respectively corresponding to the mesh holes on the first filter screen 22 are fixedly connected to the cleaning plate 32. Each of the plurality of cleaning columns 33 can pass through the first drainage hole 11 and be inserted into the mesh holes on the first filter screen 22. A first spring 34 is fixedly connected between the cleaning plate 32 and the baffle 1. A driving mechanism 4 for driving the cleaning plate 32 to move is installed on the baffle 1; the water in the rock wall first enters the first water filtering holes 21 through the first filter screen 22, and then is discharged through the first drainage holes 11. When the first filter screen 22 is blocked after long-term use, the driving mechanism 4 is started. The driving mechanism 4 drives the cleaning plate 32 to move. The cleaning plate 32 drives the cleaning columns 33 to move and compresses the first spring 34. The cleaning columns 33 push the sediment in the mesh holes of the first filter screen 22 out. During the operation of the protective plate 2, the cleaning of the first filter screen 22 can be completed, solving the problem of affecting the protection effect against mud and water inrush.

[0039] Refer to Figure 3 and Figure 4, on the side of the baffle 1 away from the protection plate 2, there is a fixed connection with a mounting plate 12. The driving mechanism 4 includes a driving motor 41 fixedly connected to the mounting plate 12. A driving screw rod 42 is fixedly connected to the output shaft of the driving motor 41. A driving guide rod is fixedly connected to the mounting plate 12. On one side of the baffle 1, there is a driving plate 43. Both the driving screw rod 42 and the driving guide rod pass through the driving plate 43. The driving screw rod 42 is threadedly connected to the driving plate 43. An abutting plate 44 is hingedly connected to the driving plate 43. The hinge shaft installed in the abutting plate 44 is located on the side of the abutting plate 44 away from the driving motor 41. A torsion spring is sleeved on the hinge shaft installed in the abutting plate 44. An abutting inclined surface is formed on the side of the abutting plate 44 away from the driving motor 41, and the abutting inclined surface can contact the cleaning plate 32. Start the driving motor 41, the driving motor 41 drives the driving screw rod 42 to rotate, the driving screw rod 42 drives the driving plate 43 to move, the driving plate 43 drives the abutting plate 44 to move. When the abutting inclined surface contacts the cleaning plate 32, the abutting plate 44 pushes the cleaning plate 32 to move through the abutting inclined surface, and thus the first filter screen 22 can be cleaned. When the driving screw rod 42 rotates in reverse, the driving screw rod 42 drives the abutting plate 44 to move. When the abutting plate 44 contacts the cleaning plate 32, the abutting plate 44 flips.

[0040] Refer to Figures 2 to 6 , an induction groove 13 for placing the protection plate 2 is opened on the baffle 1. The protection plate 2 is slidably installed in the induction groove 13. Abutting springs 14 are fixedly connected between the inner wall of the induction groove 13 and the protection plate 2. A plurality of first telescopic sleeves 15 respectively corresponding to the first filter screen 22 are arranged in the induction groove 13. One end of the first telescopic sleeve 15 is fixedly connected to the protection plate 2 and is communicated with the first water filtering holes 21. The other end of the first telescopic sleeve 15 is fixedly connected to the inner wall of the induction groove 13 and is communicated with the first drain holes 11. A storage battery electrically connected to the driving motor 41 through a wire is arranged on the baffle 1. A first switch 16 electrically connected to the storage battery through a wire is arranged on the protection plate 2. A second switch 17 electrically connected to the driving motor 41 through a wire is arranged on the inner wall of the induction groove 13. The first switch 16 and the second switch 17 are used in cooperation. A return member for driving the driving screw rod 42 to rotate in reverse is installed on the baffle 1. The water in the rock wall enters the first water filtering holes 21 through the first filter screen 22, then enters the first telescopic sleeves 15, and finally is discharged through the first drain holes 11. When the first filter screen 22 is blocked or the impact force of the sudden gushing water on the protection plate 2 is relatively large, the sudden gushing water pushes the protection plate 2 to retract into the induction groove 13, compressing the abutting springs 14. The protection plate 2 drives the first switch 16 to move. When the first switch 16 contacts the second switch 17, the storage battery can supply power to the driving motor 41, and the driving motor 41 starts.

[0041] Refer to Figure 4 and Figure 5, the response component includes a first rack 45 slidably mounted on the mounting plate 12. A driving gear 421 meshing with the first rack 45 is fixedly connected to the driving screw 42. A second spring 46 is fixedly connected between the first rack 45 and the mounting plate 12. During the forward rotation of the driving screw 42, the driving screw 42 drives the driving gear 421 to rotate. The driving gear 421 drives the first rack 45 to move, and the first rack 45 stretches the second spring 46. When the first switch 16 is separated from the second switch 17, the driving motor 41 is turned off, and the second spring 46 drives the first rack 45 to move, and the first rack 45 drives the driving screw 42 to rotate in reverse.

[0042] Referring to Figures 5 to 7 , a connecting rod 35 is inserted through the inner wall of the induction groove 13. The second switch 17 is arranged on the connecting rod 35. A third spring 36 is fixedly connected between the connecting rod 35 and the inner wall of the induction groove 13. A locking mechanism 5 for locking the connecting rod 35 is installed on the protection plate 2. An ejecting mechanism 6 is installed in the induction groove 13. The ejecting mechanism 6 includes an ejecting threaded cylinder 61 rotatably mounted on the inner wall of the induction groove 13 and an ejecting screw 62 inserted through the ejecting threaded cylinder 61. The ejecting screw 62 abuts against the protection plate 2. An ejecting guide rod is fixedly connected to the inner wall of the induction groove 13 and is inserted through the ejecting screw 62. A transmission component is installed on the baffle 1, and the driving screw 42 can drive the ejecting threaded cylinder 61 to rotate through the transmission component. When the first switch 16 is in contact with the second switch 17, the locking mechanism 5 locks the connecting rod 35 and the protection plate 2, so that the first switch 16 and the second switch 17 remain in contact. After the first filter screen 22 is cleaned, the driving screw 42 drives the ejecting threaded cylinder 61 to rotate through the transmission component. The ejecting threaded cylinder 61 drives the ejecting screw 62 to move, and the ejecting screw 62 pushes the protection plate 2 to extend out of the induction groove 13 to compact the soil on the rock wall and reduce the acting force generated by the sudden mud and water inrush on the protection plate 2. When the protection plate 2 abuts against the rock wall again, the locking of the connecting rod 35 and the protection plate 2 by the locking mechanism 5 is released, and the third spring 36 drives the connecting rod 35 to move, so that the first switch 16 is separated from the second switch 17.

[0043] Referring to Figures 3 to 7, the transmission component includes a transmission rotating shaft 63 rotatably installed on the inner wall of the induction groove 13. The transmission rotating shaft 63 extends to the outside of the baffle 1. A conveyor belt is sleeved on the transmission rotating shaft 63 and the ejection threaded barrel 61. A first bevel gear 631 is fixedly connected to the transmission rotating shaft 63. A smooth section is provided at one end of the driving screw 42 away from the driving motor 41. A fourth spring 47 capable of abutting against the driving plate 43 is fixedly connected to the baffle 1. A second bevel gear 422 rotatably connected to the driving plate 43 is sleeved on the driving screw 42. The second bevel gear 422 is slidably connected to the driving screw 42. A chute is provided on the circumferential surface of the driving screw 42. A slider placed in the chute is fixedly connected to the second bevel gear 422. The second bevel gear 422 can be engaged with the first bevel gear 631. A second rack 64 is slidably installed on the inner wall of the induction groove 13. A second gear 611 engaged with the second rack 64 is fixedly connected to the ejection threaded barrel 61. A fifth spring 65 is fixedly connected between the second rack 64 and the inner wall of the induction groove 13; when the driving plate 43 moves to the end of the driving screw 42 away from the driving motor 41, the second bevel gear 422 is engaged with the first bevel gear 631. The driving screw 42 drives the second bevel gear 422 to rotate. The second bevel gear 422 drives the first bevel gear 631 to rotate. The first bevel gear 631 drives the transmission rotating shaft 63 to rotate. The transmission rotating shaft 63 drives the ejection threaded barrel 61 to rotate, and the protection plate 2 is pushed out. The ejection threaded barrel 61 drives the second gear 611 to rotate. The second gear 611 drives the second rack 64 to move, and the fifth spring 65 is stretched. After the protection plate 2 abuts against the rock wall again, the driving motor 41 is turned off. The fifth spring 65 drives the second rack 64 to move, and the second rack 64 drives the ejection screw 62 to retract.

[0044] Refer to Figure 5 and Figure 6, the locking mechanism 5 includes a mounting rod 51 fixedly connected to the protective plate 2. An installation groove 511 is formed in the mounting rod 51. A locking spring 52 is fixedly connected to the inner wall of the installation groove 511. A locking block 53 is slidably installed in the installation groove 511. The locking spring 52 is fixedly connected to the locking block 53. A plugging groove for the locking block 53 to insert is formed in the side wall of the connecting rod 35. A locking inclined surface is formed on the end surface of the locking block 53 facing the connecting rod 35. A pull rod 54 is fixedly connected to the end surface of the locking block 53 away from the connecting rod 35. The pull rod 54 extends to the outside of the mounting rod 51. A pull plate 55 is fixedly connected to the pull rod 54. An L-shaped fixing rod 56 is fixedly connected to the inner wall of the induction groove 13. A matching plate 57 is fixedly connected to the L-shaped fixing rod 56. A matching inclined surface capable of contacting the matching plate 57 is formed on the end surface of the pull plate 55 facing the matching plate 57; during the process of the protective plate 2 moving towards the inside of the induction groove 13, the protective plate 2 drives the mounting rod 51 to move, and the mounting rod 51 drives the locking block 53 to move. When the locking inclined surface contacts the connecting rod 35, the connecting rod 35 pushes the locking block 53 to move, compressing the locking spring 52. When the locking block 53 is opposite to the plugging groove, the locking spring 52 pushes the locking block 53 to insert into the plugging groove, and the locking block 53 locks the connecting rod 35. The first switch 16 contacts the second switch 17. During the process of the protective plate 2 moving towards the outside of the induction groove 13, the protective plate 2 drives the pull plate 55 to move. When the matching inclined surface contacts the matching plate 57, the matching plate 57 pushes the pull plate 55 to move, and the pull plate 55 drives the locking block 53 to move. When the locking block 53 is pulled out from the plugging groove, the limit on the connecting rod 35 is released, and the connecting rod 35 drives the second switch 17 to separate from the first switch 16.

[0045] Refer to Figures 2 to 10, a plurality of second water filtering holes 23 are formed in the protection plate 2, and second filter meshes 24 are fixedly connected in the plurality of second water filtering holes 23. A plurality of second drainage holes 18 respectively communicating with the second water filtering holes 23 are formed in the baffle 1. A plurality of second telescopic sleeves 19 are arranged in the induction groove 13. One end of the second telescopic sleeve 19 is fixedly connected with the protection plate 2 and communicates with the second water filtering hole 23. The other end of the second telescopic sleeve 19 is fixedly connected with the inner wall of the induction groove 13 and communicates with the second drainage hole 18. A plugging mechanism 7 is arranged in the second water filtering hole 23. The plugging mechanism 7 includes a plugging plate 71 rotatably installed in the second water filtering hole 23. A plurality of plugging columns 72 corresponding to the mesh holes on the second filter mesh 24 are fixedly connected to the plugging plate 71. The plurality of plugging columns 72 are respectively inserted into the mesh holes on the second filter mesh 24. A connecting groove is formed in the inner wall of the second water filtering hole 23. A limiting spring 73 is fixedly connected to the inner wall of the connecting groove. A limiting block 74 is slidably installed in the connecting groove. The limiting spring 73 is fixedly connected with the limiting block 74. A limiting groove for the limiting block 74 to insert is formed in the plugging plate 71. An electromagnet 75 is fixedly connected to the inner wall of the connecting groove. The electromagnet 75 is electrically connected with the storage battery and the first switch through wires. An iron block 76 used in cooperation with the electromagnet 75 is fixedly connected to the limiting block 74. A transmission mechanism 8 is installed on the protection plate 2. The transmission rotating shaft 63 can drive the plugging plate 71 to rotate through the transmission mechanism 8.

[0046] When the protection plate 2 is retracted into the induction groove 13, the first switch 16 contacts the second switch 17, the storage battery powers on the electromagnet 75, the electromagnet 75 attracts the iron block 76, the iron block 76 drives the limiting block 74 to move, compresses the limiting spring 73. When the limiting block 74 disengages from the limiting groove, the water in the rock wall enters the second water filtering hole 23 through the second filter mesh 24, impacts the plugging plate 71, pushes the plugging plate 71 to flip, so that the plugging plate 71 opens, and the water is discharged through the second telescopic sleeve 19 and the second drainage hole 18. The water can be discharged faster, reducing the acting force generated by sudden mud and water gushing on the protection plate 2.

[0047] Refer to Figures 5 to 10, an installation cavity is formed in the protection plate 2. The transmission mechanism 8 includes a transmission screw barrel 81 rotatably installed in the installation cavity and a transmission screw 82 inserted into the transmission screw barrel 81. The transmission screw 82 extends into the second water filtering hole 23 and abuts against the blocking plate 71. The transmission screw 82 is slidably connected to the inner wall of the protection plate 2. A first rotating shaft 83 is rotatably installed in the installation cavity. The first rotating shaft 83 is connected to the transmission screw barrel 81 through a bevel gear set. The first rotating shaft 83 extends to the outside of the protection plate 2. A second rotating shaft 84, a third rotating shaft 85 and a fourth rotating shaft 86 are rotatably installed on the protection plate 2. A conveyor belt is sleeved on the first rotating shaft 83 and the second rotating shaft 84. A conveyor belt is sleeved on the second rotating shaft 84 and the third rotating shaft 85. A conveyor belt is sleeved on the third rotating shaft 85 and the fourth rotating shaft 86. A square groove is formed in the fourth rotating shaft 86. A square rod placed in the square groove is fixedly connected to the transmission rotating shaft 63. A conveyor belt is sleeved on two adjacent second rotating shafts 84; during the process of the protection plate 2 extending out of the induction groove 13, the transmission rotating shaft 63 drives the square rod to rotate, the square rod drives the fourth rotating shaft 86 to rotate, the fourth rotating shaft 86 drives the third rotating shaft 85 to rotate, the third rotating shaft 85 drives the second rotating shaft 84 to rotate, the second rotating shaft 84 drives the first rotating shaft 83 to rotate, the first rotating shaft 83 drives the transmission screw barrel 81 to rotate, the transmission screw barrel 81 drives the transmission screw 82 to move, the transmission screw 82 pushes the blocking plate 71 to turn over, the blocking plate 71 drives the blocking column 72 to turn over, and the blocking column 72 can push out the sediment in the mesh holes of the second filter screen 24, facilitating continued use next time.

[0048] The implementation principle of a disaster prevention device for tunnel mud and water inrush in an embodiment of the present invention is as follows: When the first filter screen 22 is blocked or the impact force of the inrush water on the protection plate 2 is relatively large, the inrush water pushes the protection plate 2 back into the induction groove 13, compressing the abutting spring 14. The protection plate 2 drives the first switch 16 to contact the second switch 17, and the locking block 53 is inserted into the insertion slot to lock the connecting rod 35. The storage battery energizes the drive motor 41 and the electromagnet 75. The drive motor 41 starts, and the drive screw 42 drives the abutting plate 44 to move. The abutting plate 44 pushes the cleaning plate 32 to move through the abutting inclined surface. The cleaning plate 32 drives the cleaning column 33 to push the sediment in the mesh holes of the first filter screen 22 out. The electromagnet 75 attracts the iron block 76, and the iron block 76 drives the limiting block 74 to disengage from the limiting groove. The water in the rock wall enters the second water filtering holes 23 through the second filter screen 24, impacts the blocking plate 71, and pushes the blocking plate 71 to flip, so that the blocking plate 71 opens, and the water can be discharged more quickly. When the drive plate 43 moves to the end of the drive screw 42 away from the drive motor 41, the cleaning of the first filter screen 22 is completed. The second bevel gear 422 meshes with the first bevel gear 631, and the second bevel gear 422 drives the ejecting screw 62 to move. The ejecting screw 62 pushes the protection plate 2 out of the induction groove 13 to compact the soil on the rock wall. At the same time, the transmission rotating shaft 63 drives the transmission screw 82 to move, and the transmission screw 82 pushes the blocking plate 71 to flip. The blocking column 72 pushes the sediment in the mesh holes of the second filter screen 24 out. When the protection plate 2 abuts against the rock wall again, the locking block 53 is pulled out of the insertion slot to release the limit on the connecting rod 35, and the connecting rod 35 drives the second switch 17 to separate from the first switch 16.

[0049] A usage method of a disaster prevention device for tunnel mud and water inrush includes the following steps:

[0050] S1. First, anchor the base 9 in the tunnel through bolts, and then start the cylinder. The cylinder drives the baffle 1 to flip, and presses the protection plate 2 tightly against the rock wall of the tunnel.

[0051] S2. After a period of time, when the first filter screen 22 is blocked and the protection plate 2 is retracted into the induction groove 13 under the action of the inrush water, the first switch 16 contacts the second switch 17, the drive motor 41 starts, and the abutting plate 44 drives the cleaning column 33 to move to clean the first filter screen 22. At the same time, the blocking plate 71 separates from the second filter screen 24, and the water in the rock wall can be discharged through the second filter screen 24.

[0052] S3. After the cleaning of the first filter screen 22 is completed, the ejecting screw 62 drives the protection plate 2 to move, and the protection plate 2 compacts the soil on the rock wall.

[0053] S4. After the first switch 16 is separated from the second switch 17, the drive motor 41 is turned off, the limit block 74 is inserted into the limit groove, and the sealing plate 71 seals the second filter screen 24.

[0054] The above are all preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A tunnel mud and water inrush disaster prevention device, comprising a baffle (1), characterized in that: A protective plate (2) is installed on the side of the baffle (1) close to the rock wall, a first water filter hole (21) is provided on the protective plate (2), a first filter net (22) is fixedly connected to the first water filter hole (21), a first drainage hole (11) is provided on the baffle (1) and is connected to the first water filter hole (21), a cleaning mechanism (3) is installed on the side of the baffle (1) away from the protective plate (2), the cleaning mechanism (3) comprises a telescopic rod (31) fixedly connected to the baffle (1), the telescopic rod (31) is remote from the baffle (1), and the cleaning mechanism (3) comprises a telescopic rod (31) fixedly connected to the baffle (1). A cleaning plate (32) is fixedly connected to one end of the baffle (1); a plurality of cleaning columns (33) are fixedly connected to the cleaning plate (32) and are respectively arranged corresponding to the mesh holes on the first filter net (22); the plurality of cleaning columns (33) can pass through the first drainage hole (11) and be inserted into the mesh holes on the first filter net (22); a first spring (34) is fixedly connected between the cleaning plate (32) and the baffle (1); and a driving mechanism (4) for driving the cleaning plate (32) to move is installed on the baffle (1).

2. A tunnel mud and water inrush disaster prevention device according to claim 1, characterized in that: A mounting plate (12) is fixedly connected to a side of the baffle (1) away from the protective plate (2); the driving mechanism (4) comprises a driving motor (41) fixedly connected to the mounting plate (12); a driving screw (42) is fixedly connected to an output shaft of the driving motor (41); a driving guide rod is fixedly connected to the mounting plate (12); a driving plate (43) is provided on one side of the baffle (1); and the driving screw (42) and the driving guide rod are both inserted into the driving plate (43). The driving screw (42) is threadedly connected to the driving plate (43), and the driving plate (43) is hingedly connected to an abutment plate (44). The hinge shaft installed in the abutment plate (44) is located on the side of the abutment plate (44) away from the driving motor (41). A torsion spring is sleeved on the hinge shaft installed in the abutment plate (44). The side of the abutment plate (44) away from the driving motor (41) is formed with an abutment inclined surface, and the abutment inclined surface can contact the cleaning plate (32).

3. A tunnel mud and water inrush disaster prevention device according to claim 2, characterized in that: The baffle plate (1) is provided with a sensing groove (13) for placing the protective plate (2); the protective plate (2) is slidably mounted in the sensing groove (13); an abutment spring (14) is fixedly connected between the inner wall of the sensing groove (13) and the protective plate (2); a first telescopic sleeve (15) is arranged in the sensing groove (13); one end of the first telescopic sleeve (15) is fixedly connected to the protective plate (2) and communicated with the first water filter hole (21); the other end of the first telescopic sleeve (15) is fixedly connected to the inner wall of the sensing groove (13); The baffle (1) is fixedly connected to the first drain hole (11), and is in communication with the first drain hole (11); a battery is arranged on the baffle (1) and is electrically connected to the drive motor (41) via a wire; a first switch (16) is arranged on the protective plate (2) and is electrically connected to the battery via a wire; a second switch (17) is arranged on the inner wall of the induction slot (13) and is electrically connected to the drive motor (41) via a wire; the first switch (16) and the second switch (17) are used in conjunction with each other; and a return component for driving the drive screw (42) to reverse is installed on the baffle (1).

4. A tunnel mud and water inrush disaster prevention device according to claim 3, characterized in that: The return component comprises a first rack (45) slidably mounted on the mounting plate (12); a driving gear (421) meshing with the first rack (45) is fixedly connected to the driving screw (42); and a second spring (46) is fixedly connected between the first rack (45) and the mounting plate (12).

5. The tunnel mud and water inrush disaster prevention device according to claim 3, characterized in that: A connecting rod (35) is passed through the inner wall of the sensing groove (13), the second switch (17) is arranged on the connecting rod (35), a third spring (36) is fixedly connected between the connecting rod (35) and the inner wall of the sensing groove (13), a locking mechanism (5) for locking the connecting rod (35) is installed on the protective plate (2), an ejection mechanism (6) is installed in the sensing groove (13), the ejection mechanism (6) comprises an ejection threaded barrel (61) rotatably mounted on the inner wall of the sensing groove (13) and an ejection screw (62) passed through the ejection threaded barrel (61), the ejection screw (62) abuts against the protective plate (2), an ejection guide rod is fixedly connected to the inner wall of the sensing groove (13), the ejection guide rod is passed through the ejection screw (62), a transmission component is installed on the baffle (1), and the drive screw (42) can drive the ejection threaded barrel (61) to rotate through the transmission component.

6. The device for preventing mud and water inrush in tunnels according to claim 5, characterized in that: The transmission component comprises a transmission shaft (63) rotatably mounted on the inner wall of the induction groove (13), the transmission shaft (63) extending to the outside of the baffle (1), a conveyor belt is sleeved on the transmission shaft (63) and the ejection threaded cylinder (61), a first bevel gear (631) is fixedly connected to the transmission shaft (63), a smooth section is provided at one end of the drive screw (42) away from the drive motor (41), a fourth spring (47) capable of abutting against the drive plate (43) is fixedly connected to the baffle (1), and a spring (47) on the drive screw (42) is provided. A second bevel gear (422) is sleeved and rotatably connected to the driving plate (43); the second bevel gear (422) is slidably connected to the driving screw (42); the second bevel gear (422) can mesh with the first bevel gear (631); a second rack (64) is slidably mounted on the inner wall of the sensing groove (13); a second gear (611) meshing with the second rack (64) is fixedly connected to the ejection threaded cylinder (61); and a fifth spring (65) is fixedly connected between the second rack (64) and the inner wall of the sensing groove (13).

7. The device for preventing mud and water inrush in tunnels according to claim 5, characterized in that: The locking mechanism (5) comprises a mounting rod (51) fixedly connected to the protective plate (2), a mounting groove (511) being provided on the mounting rod (51), a locking spring (52) being fixedly connected to the inner wall of the mounting groove (511), a locking block (53) being slidably installed in the mounting groove (511), the locking spring (52) being fixedly connected to the locking block (53), a plug-in groove for inserting the locking block (53) being provided on the side wall of the connecting rod (35), the locking block (53) facing the end surface of the connecting rod (35) A locking bevel is formed on the upper surface, a pull rod (54) is fixedly connected to the end surface of the locking block (53) away from the connecting rod (35), the pull rod (54) extends to the outside of the mounting rod (51), a pull plate (55) is fixedly connected to the pull rod (54), an L-shaped fixing rod (56) is fixedly connected to the inner wall of the sensing groove (13), a matching plate (57) is fixedly connected to the L-shaped fixing rod (56), and a matching bevel that can contact the matching plate (57) is formed on the end surface of the pull plate (55) facing the matching plate (57).

8. The device for preventing mud and water inrush in tunnels according to claim 6, characterized in that: The protective plate (2) is provided with a second water filter hole (23), and a second filter net (24) is fixedly connected to the second water filter hole (23). The baffle plate (1) is provided with a second drainage hole (18) connected to the second water filter hole (23). A second telescopic sleeve (19) is provided in the sensing groove (13), one end of the second telescopic sleeve (19) is fixedly connected to the protective plate (2) and connected to the second water filter hole (23), and the other end of the second telescopic sleeve (19) is fixedly connected to the inner wall of the sensing groove (13) and connected to the second drainage hole (18). A blocking mechanism (7) is provided in the second water filter hole (23), and the blocking mechanism (7) comprises a blocking plate (71) rotatably mounted in the second water filter hole (23), and a plurality of blocking columns corresponding to the mesh holes on the second filter net (24) are fixedly connected to the blocking plate (71). (72), a plurality of the blocking columns (72) are respectively inserted into the meshes on the second filter screen (24), a connecting groove is provided on the inner wall of the second water filter hole (23), a limit spring (73) is fixedly connected to the inner wall of the connecting groove, a limit block (74) is slidably installed in the connecting groove, the limit spring (73) is fixedly connected to the limit block (74), a limit groove for inserting the limit block (74) is provided on the blocking plate (71), an electromagnet (75) is fixedly connected to the inner wall of the connecting groove, the electromagnet (75) is respectively electrically connected to the battery and the first switch through a wire, an iron block (76) used in conjunction with the electromagnet (75) is fixedly connected to the limit block (74), a transmission mechanism (8) is installed on the protective plate (2), and the transmission shaft (63) can drive the blocking plate (71) to rotate through the transmission mechanism (8).

9. A tunnel mud and water inrush disaster prevention device according to claim 8, characterized in that: The protective plate (2) is formed with a mounting cavity, the transmission mechanism (8) comprises a transmission threaded barrel (81) rotatably mounted in the mounting cavity and a transmission screw (82) penetrating the transmission threaded barrel (81), the transmission screw (82) extending into the second water filter hole (23) and abutting against the blocking plate (71), the transmission screw (82) being slidably connected to the inner wall of the protective plate (2), a first rotating shaft (83) being rotatably mounted in the mounting cavity, the first rotating shaft (83) being connected to the transmission threaded barrel (81) via a bevel gear set, the first rotating shaft (83) and the transmission threaded barrel (81) being connected via a bevel gear set, The rotating shaft (83) extends to the outer side of the protective plate (2), and a second rotating shaft (84), a third rotating shaft (85) and a fourth rotating shaft (86) are rotatably mounted on the protective plate (2); a conveyor belt is sleeved on the first rotating shaft (83) and the second rotating shaft (84), a conveyor belt is sleeved on the second rotating shaft (84) and the third rotating shaft (85), and a conveyor belt is sleeved on the third rotating shaft (85) and the fourth rotating shaft (86); a square groove is opened on the fourth rotating shaft (86), and a square rod placed in the square groove is fixedly connected to the transmission rotating shaft (63).

10. A method for using a tunnel mud and water gushing disaster prevention device, using the tunnel mud and water gushing disaster prevention device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. First, anchor the base (9) in the tunnel by means of anchor rods, and then start the cylinder, which drives the baffle (1) to flip, and the protective plate (2) is pressed against the rock wall of the tunnel; S2. After a period of time, the first filter (22) is clogged, and the protective plate (2) is retracted into the sensing slot (13) by the force of the sudden water, so that the first switch (16) contacts the second switch (17), the driving motor (41) is started, and the abutment plate (44) pushes the cleaning column (33) to move, so as to clean the first filter (22). At the same time, the blocking plate (71) is separated from the second filter (24), and the water in the rock wall can be discharged through the second filter (24); S3, when the first filter screen (22) is cleaned, the ejector screw (62) pushes the protective plate (2) to move, and the protective plate (2) compacts the soil on the rock wall; S4. When the first switch (16) is separated from the second switch (17), the drive motor (41) is turned off, the limit block (74) is inserted into the limit groove, and the blocking plate (71) blocks the second filter screen (24).

Images