Pre-crack hydrofracture top-cutting pressure relief construction equipment and pressure control system thereof

Abstract

The invention discloses pre-crack hydraulic fracturing top-cutting pressure relief construction equipment and a pressure control system thereof, and relates to the technical field of roadway construction, the pre-crack hydraulic fracturing top-cutting pressure relief construction equipment comprises a base structure, a camera and a controller, the supporting structure comprises a first supporting frame connected with the base structure, a fourth plate movably connected with the top of the first supporting frame and a ninth plate slidably connected with the top of the fourth plate, a driving assembly is arranged between the ninth plate and the fourth plate, and a water jet scalpel launching system is installed at the top of the ninth plate. It is guaranteed that the depth of gaps cut by the sand adding water jet cutter meets the lowest requirement, waste water generated when the sand adding water jet cutter cuts the inner wall of a roadway can be collected in a limited mode, and it is avoided that particulate matter in the waste water influences work of parts in roof cutting and pressure relief construction equipment.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel construction, in particular to pre-crack hydraulic fracturing, top cutting and pressure relief construction equipment and a pressure control system thereof. Background Art

[0002] Before mining begins, coal and rock strata are in a state of in-situ stress. After large-scale mining is carried out underground, the weight of the rock strata above the goaf is transferred to the surrounding support areas, forming a support pressure zone around the goaf. This creates a mobile support pressure in front of the working face, and residual support pressure forms above, below, and behind the working face. This seriously impacts mine safety and production. Worker intervention is required to modify the roof structure of the mining face and eliminate or mitigate the source of the mine pressure disaster. Various equipment is used to assist in the construction process.

[0003] For example, the invention of patent application number: 202411913952.2 discloses a coal mine tunnel roof cutting and pressure relief device, including a fixed mounting base, the bottom end of the fixed mounting base is fixedly connected to a protective bottom plate, and the bottom end of the protective bottom plate is fixedly connected to a plurality of universal wheels, the top end of the fixed mounting base is fixedly connected to a supporting protective column, and a group of front-to-back symmetrical sewage troughs are opened on the opposite side of the fixed mounting base away from the supporting protective column, and a leakage plate is fixedly connected to the end of the sewage trough, and the opposite side of the fixed mounting base away from the sewage trough is fixedly connected to a support plate.

[0004] Taking the above-mentioned coal mine tunnel roof cutting and pressure relief equipment as an example, a tool will be used to construct the top wall of the coal mine tunnel. The interaction between the tool and the hard stone in the soil may generate local high temperature or even sparks. The construction environment is a mining tunnel where gas may exist, which poses a safety hazard. In addition, the maximum cutting depth of the tool is fixed. When there are bumps and depressions on the inner wall of the tunnel, it is easy to cause the depth difference of the cut gap to be too large. Summary of the Invention

[0005] The purpose of the present invention is to provide a pre-crack hydraulic fracturing top cutting and pressure relief construction equipment and its pressure control system to solve the problems raised in the prior art.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment, comprising a base structure, a camera and a controller, the top of the base structure is supported by a support structure, the support structure comprises a support frame 1 connected to the base structure, a plate 4 movably connected to the top of the support frame 1 and a plate 9 slidably connected to the top of the plate 4, a driving assembly is arranged between the plate 9 and the plate 4, the driving assembly provides power for the plate 9 to slide left and right on the top of the plate 4, two hydraulic cylinders 3, two spherical sliding members and two guide rails are arranged between the plate 4 and the base structure, a water jet launching system is installed on the top of the plate 9, a wastewater recovery structure is installed between the water jet launching system and the base structure, the wastewater recovery structure comprises a support frame 3 that moves synchronously with the water jet launching system and a protective assembly arranged on the top of the support frame 3, the protective assembly is connected to a water collection assembly, the water collection assembly is connected to a water pump, a diversion assembly is provided at the water outlet end of the water pump, and a nozzle is connected to the end of the diversion assembly.

[0007] Preferably, the base structure includes a trolley, plate 1 and plate 2, the top of the trolley is fixedly connected to a hydraulic cylinder 1 and three telescopic rods 1, the piston ends of the hydraulic cylinder 1 and the three telescopic rods 1 are fixedly connected to plate 1, and two internal threaded parts are fixedly connected to the side of the top of the trolley away from the water pump, and vehicle connecting plates are provided on the top of the two internal threaded parts.

[0008] Preferably, the plate 2 is slidably mounted on the top of the plate 1, and the bottom of the plate 1 is fixedly connected to three fixing frames 1, one of the fixing frames 1 is fixedly penetrated with a hydraulic cylinder 2, and the other two fixing frames 1 are fixedly penetrated with a telescopic rod 2, and the telescopic rod 2 and the piston end of the hydraulic cylinder 2 are fixedly connected to the plate 3, and the plate 3 is fixedly connected to the plate 2, the controller is fixedly mounted on the top of the trolley, and the camera is fixedly mounted on the side of the bottom of the plate 1 close to the water pump.

[0009] Preferably, the support frame 1 is fixedly installed on the top of the plate 2, the support frame 1 has a fixed frame 2 rotatably installed inside, the outer top of the fixed frame 2 is fixedly connected to the bottom of the plate 4, the two hydraulic cylinders 3 are respectively fixedly installed on both sides of the top of the plate 2, the two spherical sliding members are respectively fixedly installed on the piston ends of the two hydraulic cylinders 3, the two guide rails are respectively sleeved on the outer tops of the two spherical sliding members, and the two guide rails are respectively fixedly installed on both sides of the bottom of the plate 4.

[0010] The transmission gears are connected with the gear train of the two gears at the same time, and the transmission gears are connected with the gear train of the two gears at the same time, and the transmission gears are connected with the gear train of the two gears at the same time.

[0011] Preferably, the water jet launching system includes a water supply pump, a booster pump, an accumulator, a launching gun and an abrasive supply device. The water outlet of the water supply pump is connected to the two water inlets of the booster pump, the two water outlets of the booster pump are connected to the water inlet of the accumulator, the water outlet of the accumulator is connected to the water inlet of the launching gun, the discharge port of the abrasive supply device is connected to the mixing chamber of the launching gun, and the water supply pump, booster pump, accumulator, launching gun and abrasive supply device are all fixedly installed on the top of plate nine.

[0012] Preferably, the protection component includes an airbag fixedly connected to the top of the support frame three and two telescopic tubes one, sonar detectors are provided on both sides of the airbag, a fixing frame three is fixedly connected between the bottom of the sonar detector and the support frame three, an elastic reflector is provided on one side of the sonar detector, the top of the telescopic tube one is fixedly connected to the support frame four, the support frame four is rotatably connected inside with a rotating shaft, a displacement sensor is provided at the bottom of the inner cavity of the telescopic tube one, the displacement sensor is fixedly connected to the support frame three, the support frame three is fixedly installed on the outside of the launching gun, the two rotating shafts are respectively provided on both sides of the launching gun, a water pipe one is fixedly connected to one side of the bottom of the support frame three, an air pressure sensor is provided inside the airbag, the air pressure sensor is fixedly installed on the top of the support frame three, a plurality of spring-type telescopic rods one are fixedly connected to the top of the support frame three, and the piston ends of the plurality of spring-type telescopic rods one are respectively fixedly connected to the two support frames four.

[0013] Preferably, the water collection assembly includes a separation box arranged at the bottom of the water guide pipe, a mounting seat fixedly connected to the bottom of one side of the separation box, a bent pipe rotatably connected to the mounting seat, a connecting pipe fixedly connected at one end of the bent pipe, a telescopic pipe 2 fixedly connected to the bottom end of the connecting pipe, and a water storage tank connected to the bottom end of the telescopic pipe 2, the telescopic pipe 2 is rotatably connected to the water storage tank, a fixing frame 4 is provided on the outer fixed sleeve of the telescopic pipe 2, the fixing frame 4 is fixedly connected to the plate 4, a pad is fixedly connected to the inside of the separation box, and a filter is provided on the top of the pad.

[0014] Preferably, the diversion assembly includes a water pipe 2 fixedly connected to the water outlet end of the water pump, a water pipe 3 fixedly connected to one end of the water pipe 2, a water pipe 4 fixedly connected to one end of the water pipe 3, a water pipe 5 fixedly connected to one end of the water pipe 4, a telescopic pipe 3 fixedly connected to one side of the water pipe 5, and a water pipe 6 fixedly connected to one end of the telescopic pipe 3. The water pipe 6 is fixedly connected to the nozzle, a fixing frame 5 is fixedly installed on the outside of the water pipe 6, a hydraulic cylinder 5 is fixedly connected to one side of the water pipe 5, a piston end of the hydraulic cylinder 5 is fixedly connected to the fixing frame 5, and one side of the water pipe 3 is fixed. It is connected with an internal threaded pipe, and a telescopic pipe three is threadedly inserted on the internal threaded pipe, and one end of a T-shaped bolt is fixedly connected to a plurality of spring telescopic rods two, and a fixed circular plate is fixedly connected between the piston ends of the plurality of spring telescopic rods two, and a dye block is fixedly connected to one side of the fixed circular plate, and the dye block is arranged inside the water guide pipe three, and a grinding piece is provided on one side of the dye block, and a rotating plate is fixedly connected to one side of the grinding piece, and a short shaft is fixedly connected between the rotating plate and the water pump impeller, and the short shaft is rotatably passed through the water guide pipe two, and the water inlet end of the water pump is fixedly connected to the bottom of one side of the water tank.

[0015] The pressure control system is stored inside the controller, and the pressure control system includes a communication module, a data processing module, a motion analysis module, a displacement calculation control module, a command generation module and a model synchronization module.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. When this application is used, the support frame three, the airbag, the sonar detector, the elastic reflector, the multiple spring-type telescopic rods one, the two support frames four and the two rotating shafts cooperate to ensure that the depth of the gap cut by the sand-added water jet meets the minimum requirement, and the wastewater generated by the sand-added water jet cutting the inner wall of the tunnel can be limited and collected to prevent the particulate matter in the wastewater from affecting the work of the parts in the top cutting and pressure relief construction equipment.

[0017] 2. When the present application is used, the controller determines the offset distance of the top cutting and pressure relief construction equipment in the front and rear directions. When the offset of the top cutting and pressure relief construction equipment is small, the controller controls the hydraulic cylinder 2 to extend or contract, so that the plate 2 is offset accordingly, and the front and rear positions of the launch gun are fine-tuned; then, the water jet launch system is controlled to spray the water jet, the dual-axis motor is controlled to rotate forward, and the launch gun is moved to the left, so that the cutting gap of the launch gun is connected with the previous cutting gap; according to the above construction principle, it can be ensured that the cutting gap is in a straight line, the straightness of the cutting gap is ensured, and the rigor of the construction of the top cutting and pressure relief is increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 This is a structural diagram of a panel 1 of the present invention; Figure 3 This is a structural diagram of a fixing frame 1 of the present invention; Figure 4 This is a structural diagram of the second plate of the present invention; Figure 5 This is a schematic structural diagram of the fixing frame 2 of the present invention; Figure 6 Schematic diagram of the structure of the water jet launching system of the present invention; Figure 7 This is a schematic diagram of the partial structure of the support frame 3 of the present invention; Figure 8 Schematic diagram of the partial structure of the telescopic tube 1 of the present invention; Figure 9 It is a structural schematic diagram of the trolley of the present invention; Figure 10 Schematic diagram of the structure of the elbow of the present invention; Figure 11 This is a structural diagram of the fixing frame 5 of the present invention; Figure 12 This is a schematic structural diagram of the water conduit 3 of the present invention; Figure 13 This is a structural diagram of the fixing frame 5 of the present invention; Figure 14 It is a structural schematic diagram of the pressure control system of the present invention.

[0019] Numbers in the figure: 1. Base structure; 11. Trolley; 12. Hydraulic cylinder 1; 13. Telescopic rod 1; 14. Plate 1; 15. Plate 2; 16. Fixed frame 1; 17. Telescopic rod 2; 18. Hydraulic cylinder 2; 19. Plate 3; 2. Support structure; 21. Support frame 1; 22. Fixed frame 2; 23. Plate 4; 25. Hydraulic cylinder 3; 26. Spherical sliding member; 27. Guide rail; 28. Dual-axis hydraulic cylinder; 29. ​​Plate 5; 210. Plate 6; 211. U-shaped frame; 212. Plate 7; 213. Gear 1. 214. Plate 8. 215. Rack 2. 216. Plate 9. 217. Dual-axis motor. 218. Drive shaft. 219. Gear. 220. Support frame 2. 3. Water jet launch system. 31. Water supply pump. 32. Booster pump. 33. Accumulator. 34. Launch gun. 35. Abrasive supply equipment. 4. Wastewater recovery structure. 41. Support frame 3. 42. Airbag. 43. Sonar detector. 44. Elastic reflector. 45. Fixed frame 3. 46. Water pipe 1. 47. Support frame 4. 48. Rotating shaft. 49. Spring-loaded telescopic rod 1; 410. Telescopic tube 1; 411. Displacement sensor; 412. Separation box; 413. Filter; 414. Pad; 415. Mounting base; 416. Bend pipe; 417. Connecting pipe; 418. Air pressure sensor; 419. Fixing bracket 4; 422. Telescopic tube 2; 423. Water tank; 424. Water pump; 425. Water pipe 2; 426. Water pipe 3; 427. Water pipe 4; 428. Water pipe 5; 429. Telescopic tube 3; 430. Water pipe 6; 431 , nozzle; 432, hydraulic cylinder five; 433, fixed frame five; 434, short shaft; 435, rotating plate; 436, polishing part; 437, dye block; 438, fixed circular plate; 439, T-bolt; 440, spring telescopic rod two; 441, internal threaded tube; 5, camera; 6, controller; 61, communication module; 62, data processing module; 63, motion analysis module; 64, displacement calculation control module; 65, command generation module; 66, model synchronization module; 7, internal threaded part; 8, vehicle connecting plate. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example: Figures 1-14As shown, the present invention provides a technical solution for pre-crack hydraulic fracturing cutting and unloading pressure construction equipment, including a base structure 1, a camera 5 and a controller 6. The top of the base structure 1 is supported by a support structure 2, and a water jet launching system 3 is installed on the top of the support structure 2. A wastewater recovery structure 4 is installed between the water jet launching system 3 and the base structure 1.

[0022] Specifically, such as Figure 1 、 Figure 2 and Figure 3 As shown, the trolley 11, plate 14 and plate 2 15 in the base structure 1 are arranged in sequence from bottom to top. A hydraulic cylinder 12 and three telescopic rods 13 are fixedly connected to the top of the trolley 11. The piston ends of the hydraulic cylinder 12 and the three telescopic rods 13 are fixedly connected to the plate 14. Under the action of the hydraulic cylinder 12 and the three telescopic rods 13, the plate 14 can move up and down on the top of the trolley 11. Two internal threaded parts 7 are fixedly connected to the side of the top of the trolley 11 away from the water pump 424. Vehicle connecting plates 8 are provided on the tops of the two internal threaded parts 7. After aligning the vehicle connecting plates 8 fixedly installed on the vehicle with the internal threaded parts 7, use bolts matching the internal threaded parts 7 to fix the vehicle connecting plates 8 and the internal threaded parts 7 together. After fixing the two vehicle connecting plates 8 to the trolley 11, the vehicle can apply tension to the top cutting and pressure relief construction equipment composed of the base structure 1, the support structure 2, the water jet launching system 3, the wastewater recovery structure 4, the camera 5 and the controller 6.

[0023] Because plate 2 15 is slidably installed on the top of plate 14, plate 2 15 can slide back and forth on the top of plate 14, and because three fixing frames 16 are fixedly connected to the bottom of plate 14, one of the fixing frames 16 is fixedly penetrated by hydraulic cylinder 2 18, and the other two fixing frames 16 are fixedly penetrated by telescopic rod 2 17, and the piston ends of telescopic rod 2 17 and hydraulic cylinder 2 18 are fixedly connected to plate 3 19. Plate 3 19 passes through the channel reserved on plate 14 and is fixedly connected to plate 2 15. Therefore, by controlling the operation of hydraulic cylinder 2 18, plate 2 15 can be controlled to move back and forth on the top of plate 14, and the supporting structure 2 and water jet launching system 3 supported by plate 2 15 can move back and forth.

[0024] The controller 6 for controlling the operation of the top cutting and pressure relief construction equipment is fixedly installed on the top of the trolley 11, and the camera 5 is fixedly installed on the bottom of the plate 14 near the side of the water pump 424.

[0025] Specifically, such as Figure 1 、 Figure 4 、 Figure 5 and Figure 6As shown, support frame 1 21 is fixedly installed on the top of plate 2 15, and the two move up and down and forward and backward synchronously; a fixing frame 22 is rotatably installed inside support frame 1 21, and the outer top of fixing frame 22 is fixedly connected to the bottom of plate 4 23, and plate 4 23 can rotate on the top of plate 2 15. Hydraulic cylinder 3 25 is fixed on both sides of the top of plate 2 15, and two spherical sliding members 26 are respectively fixed on the piston ends of two hydraulic cylinders 3 25, and two guide rails 27 are respectively sleeved on the outer top of the two spherical sliding members 26. The two guide rails 27 are respectively fixed on both sides of the bottom of plate 4 23. Since the spherical part at the top of the spherical sliding member 26 is partially arranged inside the guide rail 27, the guide rail 27 can rotate at a certain angle on the outside of the spherical sliding member 26 and the two will not be disconnected during this process.

[0026] The hydraulic cylinder 3 25 is controlled to work, and the force of the up and down movement of the spherical sliding member 26 is converted into a force for the rotation of the plate 4 23 under the cooperation of the spherical sliding member 26 and the guide rail 27.

[0027] The dual-axis motor 217 in the drive assembly is fixedly mounted on the top of the plate nine 216. Both output ends of the dual-axis motor 217 are fixedly connected to a transmission shaft 218. Gears 219 are fixedly sleeved on the outside of the two transmission shafts 218. Multiple support frames 220 are rotatably sleeved on the outside of the transmission shafts 218. The support frames 220 are fixedly mounted on the top of the plate nine 216. The force of the left and right movement of the transmission shaft 218 is applied to the plate nine 216 through the support frames 220. Rack 215 is fixedly connected to both sides of plate 4 23, and gear 219 is meshed with rack 215 on the same side. The two piston ends of the double-axis hydraulic cylinder 28 fixedly connected to the bottom of one rack 215 are fixedly connected to plate 5 29, and one side of the two plate 5 29 is fixedly connected to plate 6 210. Multiple U-shaped frames 211 passed through plate 6 210 are fixedly installed at the bottom of plate 4 23, so the downward force on plate 6 210 is applied to plate 4 23 through U-shaped frame 211; one end of plate 6 210 is fixedly connected to Plate seven 212, both ends of the two racks two 215 are provided with rack one 213, and a plurality of hinges are fixedly installed between the bottom of plate eight 214 fixedly connected to one side of rack one 213 and plate four 23, and rack one 213 can be flipped on one side of plate four 23 to meet the need of folding rack one 213, and plate seven 212 and plate five 29 are both arranged at the bottom of adjacent rack one 213, and the movement of plate seven 212 and plate five 29 is controlled so that after the bottom of rack one 213 loses support, rack one 213 automatically falls under the action of gravity.

[0028] Specifically, such as Figure 1 and Figure 6As shown, the water supply pump 31, booster pump 32, accumulator 33, launch gun 34 and abrasive supply equipment 35 in the water jet launching system 3 are all fixedly installed on the top of plate nine 216, the water outlet of the water supply pump 31 is connected to the two water inlets of the booster pump 32, the water inlet of the water supply pump 31 is connected to the water supply pipe, the two water outlets of the booster pump 32 are connected to the water inlet of the accumulator 33, the accumulator 33 is used to eliminate the pressure fluctuation of the high-pressure water supplied by the booster pump 32, the water outlet of the accumulator 33 is connected to the water inlet of the launch gun 34, the accumulator 33 supplies high-pressure water with stable pressure to the launch gun 34, the discharge port of the abrasive supply equipment 35 is connected to the mixing chamber of the launch gun 34, the abrasive supply equipment 35 supplies abrasive to the inside of the mixing chamber of the launch gun 34, so that the launch gun 34 sprays out high-pressure and high-speed sand-added water jet, and the sand-water jet performs top cutting and pressure relief construction on the top wall structure of the tunnel.

[0029] Specifically, such as Figure 1 and Figure 7 As shown, the airbag 42 and two telescopic tubes 1 410 in the protective assembly are fixedly mounted on the top of the third support frame 41. A sonar detector 43 is installed inside the airbag 42. A third fixing frame 45 is fixedly connected between the bottom of the sonar detector 43 and the third support frame 41. An elastic reflector 44 is installed on one side of the sonar detector 43. The elastic reflector 44 is fixedly mounted on the top of the third support frame 41 and closely adheres to the front wall of the airbag 42. When the airbag 42 encounters a large rock and deforms, the elastic reflector 44 is pushed down, reducing the reflected sound waves received by the sonar detector 43. The controller 6, receiving feedback from the sonar detector 43, determines that there is an obstacle ahead. An air pressure sensor 418 is installed inside the airbag 42. The air pressure sensor 418 is fixedly mounted on the top of the third support frame 41. The air pressure sensor 418 detects the air pressure value inside the airbag 42 and feeds it back to the controller 6.

[0030] A support frame four 47 is fixedly connected to the top of the telescopic tube one 410, and a rotating shaft 48 is rotatably connected inside the support frame four 47. A displacement sensor 411 is provided at the bottom of the inner cavity of the telescopic tube one 410, and the displacement sensor 411 is fixedly connected to the support frame three 41. The displacement sensor 411 detects the downward distance of the support frame four 47. The support frame three 41 is fixedly installed on the outside of the launch gun 34 and moves up and down synchronously with the launch gun 34. Two rotating shafts 48 are respectively provided on both sides of the launch gun 34 to provide protection for the launch gun 34. A water pipe one 46 is fixedly connected to one side of the bottom of the support frame three 41, and the water pipe one 46 discharges the water collected by the air bag 42 and the support frame three 41.

[0031] Specifically, such as Figure 2 、 Figure 5 、 Figure 9 and Figure 10As shown, the separation box 412 in the water collection assembly is arranged at the bottom of the water pipe 46, and the separation box 412 fixedly connected to the top of the plate nine 216 is used to collect water discharged from the water pipe 46. The mounting seat 415 fixedly connected to the bottom of one side of the separation box 412 is internally rotatably connected with a bend pipe 416, and the bottom end of the connecting pipe 417 fixedly connected to one end of the bend pipe 416 is fixedly connected to the telescopic pipe 2 422. The water storage tank 423 connected to the bottom end of the telescopic pipe 2 422 is fixedly installed on the top of the trolley 11, and the telescopic pipe 2 422 is rotatably connected to the water storage tank 423. Because the fixing frame four 419 fixedly sleeved on the outside of the telescopic pipe 2 422 is fixedly connected to the plate four 23, the telescopic pipe 2 422 can be telescoped. Therefore, when the plate four 23 rotates, the plate nine 216 rotates synchronously, the separation box 412 rotates, and the plate four 23 applies a rotational force to the telescopic pipe 2 422 through the fixing frame four 419. The telescopic pipe 2 422 will not affect the adjustment of the angle of the plate four 23.

[0032] A pad 414 is fixedly connected to the inside of the separation box 412. A filter screen 413 provided on the top of the pad 414 is used to filter the water entering the separation box 412, so that the water discharged through the mounting seat 415 is filtered, and the water entering the water storage tank 423 through the telescopic tube 422 is also filtered.

[0033] Specifically, such as Figure 9 、 Figure 11 、 Figure 12 and Figure 13 As shown, the water pipe 2 425 in the diversion assembly is fixedly installed at the water outlet end of the water pump 424, the water pipe 3 426 to which one end of the water pipe 2 425 is fixedly connected is fixedly connected to the water pipe 4 427 at one end, the water pipe 5 428 to which one end of the water pipe 427 is fixedly connected is fixedly connected to the telescopic pipe 3 429 at one side, and the telescopic pipe 3 429 can be telescopic, and the water pipe 6 430 to which one end of the telescopic pipe 3 429 is fixedly connected is fixedly connected to the nozzle 431, and the water inlet end of the water pump 424 is fixedly connected to the bottom of one side of the water tank 423, and the water pump 424 is controlled to pump water from the inside of the water tank 423, and the water pump 424 supplies water to the inside of the nozzle 431 through the water pipe 2 425, the water pipe 3 426, the water pipe 427, the water pipe 5 428, the telescopic pipe 3 429 and the water pipe 6 430.

[0034] A fixing frame 5 433 is fixedly installed on the outside of the water pipe 6 430 , and the piston end of the hydraulic cylinder 5 432 fixedly connected to one side of the water pipe 5 428 is fixedly connected to the fixing frame 5 433 . When the telescopic tube 3 429 can be retracted, the hydraulic cylinder 5 432 can be controlled to work to control the nozzle 431 to leave the bottom of the trolley 11 .

[0035] An internal threaded tube 441 is fixedly connected to one side of the water pipe three 426, and one end of the telescopic tube three 429 threadedly inserted on the internal threaded tube 441 is fixedly connected to multiple spring telescopic rods two 440, and a fixed circular plate 438 is fixedly connected between the piston ends of the multiple spring telescopic rods two 440. A dye block 437 fixedly connected to one side of the fixed circular plate 438 contains a certain proportion of fluorescent material. The dye block 437 is arranged inside the water pipe three 426, and a grinding piece 436 arranged on one side of the dye block 437 is fixedly connected to one side of the rotating plate 435. A short shaft 434 is fixedly connected between the rotating plate 435 and one end of the impeller of the water pump 424. The short shaft 434 is rotatably inserted into the water pipe two 425. When the water pump 424 is controlled to work, the impeller part of the water pump 424 rotates, and the rotating plate 435 and the grinding piece 436 rotate under the action of the short shaft 434.

[0036] The method of using the top cutting and pressure relief construction equipment is as follows: Example 1: The T-bolt 439 without the spring telescopic rod 440 installed is rotated and inserted into the inner threaded tube 441, so that the water guide pipe 426 plays a diversion role.

[0037] Subsequently, the staff operated the vehicle to apply pulling force to the top cutting and pressure relief construction equipment. The vehicle and the top cutting and pressure relief construction equipment slowly moved along the preset trajectory. At the initial stage of the vehicle movement, the hydraulic cylinder 12 was controlled to move upward, and the position of the slit was processed as needed. The two hydraulic cylinders 3 25 were controlled to work together to make the plate 4 23 tilt at a corresponding angle, and the tilt angle of the plate 9 216 was adjusted synchronously to make the firing gun 34 tilt at a corresponding angle. The purpose of top cutting and pressure relief was achieved by processing multi-angle slits on the top wall of the tunnel, ensuring the flexibility of the top cutting and pressure relief construction equipment.

[0038] The hydraulic cylinder 12 is controlled to work to push the plate 14 upward, the support structure 2 and the water jet launching system 3 move upward, the support frame 3 41 fixedly installed on the outside of the launching gun 34 moves upward, and the airbag 42 moves upward. When the airbag 42 contacts the top wall of the tunnel, as the support frame 3 41 moves upward, the air pressure inside the airbag 42 rises, and the air pressure sensor 418 detects the air pressure value inside the airbag 42 and feeds it back to the controller 6 in real time. When the air pressure inside the airbag 42 reaches the preset value, the controller 6 controls the airbag 42 to suspend work; at this time, the airbag 42 and the support frame 3 41 cooperate to form a sealed cavity on the outside of the top of the launching gun 34. With the cooperation of the base structure 1 and the support structure 2, the top of the launching gun 34 is close to the top wall of the tunnel, ensuring that the water jet has sufficient cutting force on the inner wall of the tunnel.

[0039] Control the water jet launching system 3 to work, and the launching gun 34 launches the sand-added water jet to cut the top wall of the tunnel. The water jet cutting does not generate heat and can meet the needs of safe construction and processing inside the mining tunnel. As the vehicle and the top cutting and pressure relief construction equipment move slowly, the sand-added water jet cuts a gap in the top wall of the tunnel to perform the top cutting and pressure relief work.

[0040] During the top cutting and pressure relief process, the support frame 41 moves synchronously, the airbag 42 moves synchronously, and the force required for the deformation of the elastic reflective plate 44 is much greater than the force required for the deformation of the airbag 42. When the volume of the protruding stones on the inner wall of the tunnel in the direction of the airbag 42 is less than a certain level, the airbag 42 deforms but the elastic reflective plate 44 does not deform. At this time, the reflected sound wave data received by the sonar detector 43 is not affected, and the top cutting and pressure relief work is carried out normally.

[0041] When the volume of the existing stones is greater than a certain level, the elastic reflective plate 44 is pushed to deform, and the reflected sound wave data received by the sonar detector 43 decreases. The controller 6 receives feedback from the sonar detector 43. When the reflected sound wave data received by the sonar detector 43 decreases, it means that the protruding stones on the movement path of the water jet launch system 3 will make it impossible to leave a cutting gap with the required depth on the inner wall of the tunnel. The controller 6 controls the water jet launch system 3 to suspend work, and the controller 6 controls the vehicle to stop moving, and the top cutting and pressure relief work is terminated to avoid damage to the launch gun 34 and ensure the safety of the use of the launch gun 34.

[0042] Subsequently, the dual-axis hydraulic cylinder 28 is controlled to work and extend, and the two plate pieces 5 29 both move toward the bottom of the adjacent rack piece 1 213. The plate piece 5 29 drives the plate piece 7 212 to move synchronously through the plate piece 6 210. The two plate pieces 5 29 and the two plate pieces 7 212 lift the four rack pieces 1 213, so that the rack piece 1 213 is flush with the rack piece 2 215. The rack piece 215 and the two rack pieces 1 213 set at both ends of the rack piece 215 form an extended rack. Subsequently, the dual-axis motor 217 is controlled to work in reverse, and the transmission shaft 218 drives the gear 219 to rotate clockwise. The gear 219 meshes with the extended rack, so the plate piece 9 216 moves left at the top of the plate piece 4 23, and the water The knife launching system 3 moves to the left, and the movement direction of the water jet launching system 3 is opposite to the forward direction of the vehicle. The lengthened rack ensures that the water jet launching system 3 has sufficient movement space. The water jet launching system 3 moves away from the protruding stones, providing sufficient space for the staff to clean the protruding stones; after the protruding stones are cleaned, the dual-axis motor 217 reverses and works for a period of time to reset the launch gun 34, and the launch gun 34 is restored to the alignment state with the gap cut out before, and then the top cutting and pressure relief work is continued; then the control plate five 29 is retracted, the bottom of the rack one 213 loses support and falls under the action of gravity, and the support structure 2 returns to the folded state, reducing the space occupied by the support structure 2.

[0043] During the process of top cutting and pressure relief, the rotatable shaft 48 is set in front of the launch gun 34. After the protruding stone enters the air bag 42, the shaft 48 moves downward under the action of the protruding stone, and the support frame 47 moves downward. The displacement sensor 411 set inside the telescopic tube 1 410 detects the downward movement distance of the support frame 47. The setting of the telescopic tube 1 410 prevents the displacement sensor 411 from being affected by the waste water generated after the water jet acts on the inner wall of the tunnel, ensuring that the displacement sensor 411 accurately detects the downward movement distance of the support frame 47. The displacement sensor 411 detects the structure and feeds back to the controller 6. The controller 6 controls the boost pressure according to the feedback result of the displacement sensor 411. The working power of the pump 32 controls the internal hydraulic pressure of the accumulator 33 and the flow rate of the sand-filled water jet ejected by the launch gun 34; and a plurality of spring-type telescopic rods 49 apply an upward resetting force to the support frame 47 in real time. The displacement of the support frame 47 changes with the uneven changes in the inner wall of the tunnel on the movement path of the launch gun 34. The displacement sensor 411 arranged at the bottom of the support frame 47 in front of the forward direction of the launch gun 34 works to feedback the downward movement data of the support frame 47 to the controller 6. The controller 6 controls the working water pressure of the water jet launching system 3 to ensure that the depth of the gap left by the sand-filled water jet on the inner wall of the tunnel exceeds the minimum depth that meets the requirements, thereby ensuring the effect of top cutting and pressure relief.

[0044] By cooperating with support frame three 41, airbag 42, sonar detector 43, elastic reflector 44, multiple spring-type telescopic rods 1 49, two support frames 47 and two rotating shafts 48, the depth of the gap cut by the sand-added water jet is ensured to meet the minimum requirement, and the wastewater generated by the sand-added water jet cutting the inner wall of the tunnel can be limited and collected to prevent the particles in the wastewater from affecting the work of the parts in the top cutting and pressure relief construction equipment.

[0045] During the top cutting and pressure relief work, the airbag 42 collects the wastewater generated by the sand-added water jet cutting the inner wall of the tunnel. The wastewater falls into the separation box 412 through the water guide pipe 46. The water is filtered by the filter mesh 413 and enters the water tank 423 through the bend pipe 416 and the telescopic pipe 422. The gravity inside the water tank 423 increases. The water tank 423 is fixedly installed on the top of the trolley 11. The water tank 423 is located at a lower position of the overall top cutting and pressure relief construction equipment. The center of gravity of the top cutting and pressure relief construction equipment is lowered to ensure the movement and working stability of the top cutting and pressure relief construction equipment. At regular intervals, the water pump 424 is controlled to work for a period of time. After the water pump 424 pumps water from the inside of the water tank 423, the water pump 424 discharges the water through the water pipe 2 425, the water pipe 3 426, the water pipe 4 427, the water pipe 5 428, the telescopic pipe 3 429, the water pipe 6 430 and the nozzle 431, ensuring that the water tank 423 has sufficient space to support the top of the support frame 3 41 to collect waste water.

[0046] Example 2: The T-shaped bolt 439 with the spring telescopic rod 2 440 installed thereon is rotated and inserted into the internal threaded tube 441 . Under the push of the multiple spring telescopic rods 2 440 , the dye block 437 comes into contact with the polishing piece 436 .

[0047] Then the vehicle is controlled to pull the top cutting and pressure relief construction equipment to move to the right, and the top cutting and pressure relief construction equipment enters the forward state. After the top cutting and pressure relief construction equipment moves forward for a distance, the vehicle stops moving. At this time, the double-axis hydraulic cylinder 28 is controlled to extend so that the rack 215 and the two racks 1 213 set at its two ends form an extended rack. Then, the double-axis motor 217 is controlled to work forward. Under the action of the transmission shaft 218, the gear 219 and the extended rack, the plate 9 216 moves left, and then the hydraulic cylinder 28 is controlled to extend. The hydraulic cylinder 12 works and stretches, making the airbag 42 close to the inner wall of the tunnel. When the hydraulic cylinder 12 stops working under the cooperation of the air pressure sensor 418 and the controller 6, the controller 6 controls the water jet launching system 3 to work and spray the water jet, and then controls the dual-axis motor 217 to work in reverse, and the plate 9 216 moves right, and the water jet launching system 3 moves right to cut the inner wall of the tunnel. At the same time, the water pump 424 works to pump water from the inside of the water tank 423, and the water pump 424 passes through the water pipe 2 425 and the water pipe 3 42 6. The water is discharged from the fourth water pipe 427, the fifth water pipe 428, the third telescopic pipe 429, the sixth water pipe 430 and the nozzle 431. When the water flows into the third water pipe 426, the rotating impeller in the water pump 424 drives the rotating plate 435 to rotate through the short shaft 434, and the grinding piece 436 fixed on the rotating plate 435 rotates. Under the action of the multiple spring telescopic rods 440, a certain static friction is maintained between the dye block 437 and the grinding piece 436. The rotating grinding piece 436 will partially Dye block 437 is ground into powder, which is then mixed with water flowing through water conduit three 426 , causing the water sprayed from nozzle 431 to contain a certain amount of fluorescent material. Hydraulic cylinder five 432 then operates to push fixed frame five 433 , which in turn moves water conduit six 430 and nozzle 431 . Nozzle 431 sprays a straight line of a different color on the ground, and the line containing the fluorescent material is still conspicuous in the dim tunnel. Hydraulic cylinder five 432 then retracts after being extended to its limit.

[0048] When the plate 9 216 moves to the right to the limit, the controller 6 controls the water jet launching system 3 to stop working; then the vehicle drives the top cutting and pressure relief construction equipment to move forward for a distance, and when the vehicle stops, the water pump 424 works again to pump water from the inside of the water tank 423 and discharge it through the nozzle 431, so that a second straight line of different color appears on the ground, and the camera 5 works to shoot the two straight lines of different color. The shooting results of the camera 5 are transmitted to the controller 6, and the controller 6 determines the offset distance of the top cutting and pressure relief construction equipment in the front and rear directions. When the offset of the top cutting and pressure relief construction equipment is small, the controller 6 controls the hydraulic cylinder 2 18 to work to extend or contract, so that the plate Component 2 15 performs corresponding front-to-back offsets to fine-tune the front-to-back position of the launch gun 34; then, the water jet launch system 3 is controlled to work and spray the water jet, the dual-axis motor 217 is controlled to work forward, and the launch gun 34 moves to the left, so that the gap cut by the launch gun 34 is connected to the gap cut last time; according to the above-mentioned construction principle, the top cutting and pressure relief construction equipment is first displaced, and then the water jet launch system 3 is cut to position the cutting gap, and finally the cutting construction method is performed. In a dark tunnel with a relatively complex ground environment, the cutting gap can also be located on the preset line, ensuring the rationality of the cutting gap and increasing the rigor of the top cutting and pressure relief construction.

[0049] When the controller 6 determines that the offset is large, it sends the offset data to the staff, prompting the staff to adjust the position of the top cutting and pressure relief construction equipment by controlling the vehicle. The top cutting and pressure relief construction equipment then fine-tunes itself to ensure that the cutting gap is aligned.

[0050] In addition, by controlling the direction of the current inside the dual-axis motor 217, the forward or reverse rotation mode of the dual-axis motor 217 can be adjusted.

[0051] In addition, such as Figure 14As shown, the controller 6 stores a pressure control system inside, in which the communication module 61 communicates with the hydraulic cylinder 1 12, the hydraulic cylinder 3 25, the dual-axis hydraulic cylinder 28, the water jet launching system 3, the air pressure sensor 418, the displacement sensor 411, the water pump 424 and the camera 5, the data processing module 62 processes the data received by the communication module 61, the motion analysis module 63 calculates the required variable data based on the data transmitted by the data processing module 62, the motion analysis module 63 calculates the concave and convex variable data of the inner wall of the lane according to the displacement data of the support frame 4 47 transmitted by the displacement sensor 411, and the motion analysis module 63 calculates the offset variable data of the launching gun 34 according to the position change between the two different-colored straight lines captured by the camera 5. The displacement calculation control module 64 calculates the pressure increase and decrease data according to the variable data, the displacement calculation control module 64 calculates the working pressure increase and decrease variables of the booster pump 32 according to the convex and concave variable data of the inner wall of the tunnel, the displacement calculation control module 64 calculates the working pressure increase and decrease variables of the hydraulic cylinder 2 18 according to the offset variable data, the command generation module 65 generates a control instruction according to the working pressure increase and decrease variables of the booster pump 32 and the working pressure increase and decrease variables of the hydraulic cylinder 2 18, the control instruction is synchronized to the booster pump 32 and the hydraulic cylinder 2 18 by the communication module 61, the booster pump 32 and the hydraulic cylinder 2 18 perform corresponding work, the booster pump 32 works to change the internal pressure of the accumulator 33, and the internal pressure change of the hydraulic cylinder 2 18 performs corresponding extension or contraction.

[0052] The displacement variable data calculated by the motion analysis module 63 is used by the displacement calculation control module 64 to generate a vehicle offset guidance three-dimensional model. The vehicle offset guidance three-dimensional model is synchronized to the interior of the vehicle by the model synchronization module 66 to guide the staff to control the vehicle direction when the vehicle is working next time.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A pre-crack hydraulic fracturing and top-cutting pressure relief construction device, comprising a base structure (1), a camera (5) and a controller (6), characterized in that: The top of the base structure (1) is supported by a support structure (2), and the support structure (2) includes a support frame 1 (21) connected to the base structure (1), a plate 4 (23) movably connected to the top of the support frame 1 (21), and a plate 9 (216) slidably connected to the top of the plate 4 (23). A driving component is provided between the plate 9 (216) and the plate 4 (23), and the driving component provides power for the plate 9 (216) to slide left and right on the top of the plate 4 (23). Two hydraulic cylinders 3 (25), two spherical slides are provided between the plate 4 (23) and the base structure (1). A moving part (26) and two guide rails (27), a water jet launching system (3) is installed on the top of the plate part nine (216), a waste water recovery structure (4) is installed between the water jet launching system (3) and the base structure (1), the waste water recovery structure (4) includes a support frame three (41) that moves synchronously with the water jet launching system (3) and a protective component set on the top of the support frame three (41), the protective component is connected to a water collection component, the water collection component is connected to a water pump (424), the water outlet end of the water pump (424) is provided with a diversion component, and the end of the diversion component is connected to a nozzle (431).

2. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 1, characterized in that: The base structure (1) includes a trolley (11), a plate member 1 (14) and a plate member 2 (15). The top of the trolley (11) is fixedly connected to a hydraulic cylinder 1 (12) and three telescopic rods 1 (13). The piston ends of the hydraulic cylinder 1 (12) and the three telescopic rods 1 (13) are fixedly connected to the plate member 1 (14). The top of the trolley (11) is fixedly connected to two internal threaded parts (7) on a side away from the water pump (424). The tops of the two internal threaded parts (7) are both provided with a vehicle connecting plate (8).

3. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 2, characterized in that: The second plate (15) is slidably mounted on the top of the first plate (14), and the bottom of the first plate (14) is fixedly connected to three fixing frames (16), one of which is fixedly provided with a hydraulic cylinder (18) and the other two fixing frames (16) are fixedly provided with a telescopic rod (17) and the piston ends of the telescopic rod (17) and the hydraulic cylinder (18) are fixedly connected to the third plate (19), and the third plate (19) is fixedly connected to the second plate (15). The controller (6) is fixedly mounted on the top of the trolley (11), and the camera (5) is fixedly mounted on the bottom of the first plate (14) near the side of the water pump (424).

4. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 2, characterized in that: The support frame 1 (21) is fixedly installed on the top of the plate 2 (15), and the support frame 1 (21) is rotatably installed with the fixing frame 2 (22). The outer top of the fixing frame 2 (22) is fixedly connected to the bottom of the plate 4 (23). The two hydraulic cylinders 3 (25) are respectively fixedly installed on both sides of the top of the plate 2 (15). The two spherical sliding members (26) are respectively fixedly installed on the piston ends of the two hydraulic cylinders 3 (25). The two guide rails (27) are respectively sleeved on the outer tops of the two spherical sliding members (26). The two guide rails (27) are respectively fixedly installed on both sides of the bottom of the plate 4 (23).

5. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 1, characterized in that: The driving assembly includes a dual-axis motor (217) fixedly connected to the top of plate nine (216), two racks (215) fixedly connected to both sides of plate four (23), and a dual-axis hydraulic cylinder (28) fixedly connected to the bottom of one of the racks (215), both output ends of the dual-axis motor (217) are fixedly connected to a transmission shaft (218), the outer sides of the two transmission shafts (218) are fixedly sleeved with gears (219), the gears (219) are meshed with the racks (215) on the same side, the outer sides of the transmission shafts (218) are rotatably sleeved with a plurality of support frames (220), the support frames (220) are fixedly installed on the top of plate nine (216), the two racks (215) are fixedly sleeved with gears (219), the gears (219) are meshed with the racks (215) on the same side, and ... two racks (215) are fixedly sleeved with gears (219). A rack (213) is provided at each end, one side of the rack (213) is fixedly connected to a plate (214), a plurality of hinges are fixedly installed between the bottom of the plate (214) and the plate (23), both piston ends of the dual-axis hydraulic cylinder (28) are fixedly connected to the plate (29), one side of the two plate (29) is fixedly connected to the plate (210), a plurality of U-shaped frames (211) are provided on the plate (210), the U-shaped frames (211) are fixedly installed on the bottom of the plate (23), one end of the plate (210) is fixedly connected to the plate (212), the plate (212) and the plate (29) are both arranged at the bottom of the adjacent rack (213).

6. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 1, characterized in that: The water jet launching system (3) includes a water supply pump (31), a booster pump (32), an accumulator (33), a launching gun (34) and an abrasive supply device (35), wherein the water outlet of the water supply pump (31) is connected to the two water inlet ends of the booster pump (32), the two water outlet ends of the booster pump (32) are connected to the water inlet end of the accumulator (33), the water outlet end of the accumulator (33) is connected to the water inlet end of the launching gun (34), the discharge port of the abrasive supply device (35) is connected to the mixing chamber of the launching gun (34), and the water supply pump (31), the booster pump (32), the accumulator (33), the launching gun (34) and the abrasive supply device (35) are all fixedly mounted on the top of plate nine (216).

7. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 6, characterized in that: The protection component includes an air bag (42) fixedly connected to the top of the support frame three (41) and two telescopic tubes (410), sonar detectors (43) are provided on both sides of the air bag (42), a fixed frame three (45) is fixedly connected between the bottom of the sonar detector (43) and the support frame three (41), an elastic reflector (44) is provided on one side of the sonar detector (43), the top of the telescopic tube (410) is fixedly connected to the support frame four (47), the support frame four (47) is rotatably connected to the rotating shaft (48), and a displacement sensor (411) is provided at the bottom of the inner cavity of the telescopic tube (410). The sensor (411) is fixedly connected to the support frame three (41), the support frame three (41) is fixedly installed on the outside of the launch gun (34), the two rotating shafts (48) are respectively arranged on both sides of the launch gun (34), the bottom side of the support frame three (41) is fixedly connected to the water pipe one (46), the air bag (42) is provided with an air pressure sensor (418), the air pressure sensor (418) is fixedly installed on the top of the support frame three (41), the top of the support frame three (41) is fixedly connected to a plurality of spring-type telescopic rods one (49), and the piston ends of the plurality of spring-type telescopic rods one (49) are respectively fixedly connected to the two support frames four (47).

8. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 7, characterized in that: The water collection assembly includes a separation box (412) arranged at the bottom of the water guide pipe (46), a mounting seat (415) fixedly connected to the bottom of one side of the separation box (412), a curved pipe (416) rotatably connected to the mounting seat (415), a connecting pipe (417) fixedly connected to one end of the curved pipe (416), a telescopic pipe (422) fixedly connected to the bottom end of the connecting pipe (417), and a water storage tank (423) connected to the bottom end of the telescopic pipe (422), wherein the telescopic pipe (422) is rotatably connected to the water storage tank (423), a fixing frame (419) is fixedly provided on the outer side of the telescopic pipe (422), and the fixing frame (419) is fixedly connected to the plate (23), and a pad (414) is fixedly connected to the inside of the separation box (412), and a filter (413) is provided on the top of the pad (414).

9. The pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to claim 8, characterized in that: The diversion assembly includes a water pipe 2 (425) fixedly connected to the water outlet end of the water pump (424), a water pipe 3 (426) fixedly connected to one end of the water pipe 2 (425), a water pipe 4 (427) fixedly connected to one end of the water pipe 3 (426), a water pipe 5 (428) fixedly connected to one end of the water pipe 4 (427), a telescopic pipe 3 (429) fixedly connected to one side of the water pipe 5 (428), and a water pipe 6 (430) fixedly connected to one end of the telescopic pipe 3 (429), wherein the water pipe 6 (430) is fixedly connected to the nozzle (431), a fixing frame 5 (433) is fixedly installed on the outside of the water pipe 6 (430), a hydraulic cylinder 5 (432) is fixedly connected to one side of the water pipe 5 (428), a piston end of the hydraulic cylinder 5 (432) is fixedly connected to the fixing frame 5 (433), and an inner fixed end of the water pipe 3 (426) is fixedly connected to one side of the water pipe 6 (430). A threaded tube (441) is provided with a telescopic tube (429) threadedly inserted on the internal threaded tube (441), and one end of a T-shaped bolt (439) is fixedly connected to a plurality of spring telescopic rods (440) two, a fixed circular plate (438) is fixedly connected between the piston ends of the plurality of spring telescopic rods (440), one side of the fixed circular plate (438) is fixedly connected to a dye block (437), the dye block (437) is arranged inside the water guide pipe (426), a grinding piece (436) is provided on one side of the dye block (437), a rotating plate (435) is fixedly connected to one side of the grinding piece (436), a short shaft (434) is fixedly connected between the rotating plate (435) and the impeller of the water pump (424), the short shaft (434) is rotatably passed through the water guide pipe (425), and the water inlet end of the water pump (424) is fixedly connected to the bottom of one side of the water storage tank (423).

10. A pressure control system, suitable for a pre-crack hydraulic fracturing and top cutting and pressure relief construction equipment according to any one of claims 1 to 9, wherein the controller (6) stores a pressure control system, characterized in that: The pressure control system includes a communication module (61), a data processing module (62), a motion analysis module (63), a displacement calculation control module (64), a command generation module (65) and a model synchronization module (66).

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