A low-temperature mining area hydraulic perforation diverter valve

Abstract

This invention discloses a low-temperature mining area hydraulic perforation diverting valve, relating to the field of mine gas extraction equipment. It includes a auger motor and a drill bit, the drill bit being fixed to the output shaft of the auger motor. A valve body is mounted on the surface of the auger motor, the valve body being open at the top and sealed at the bottom. A high-pressure hose is sealed at the top of the valve body, and multiple perforations are arranged in a ring array on the side of the valve body. This low-temperature mining area hydraulic perforation diverting valve, by setting a large-diameter orifice, a small-diameter orifice, and a valve body, allows sand and mud to enter the small-diameter orifice as the drill bit moves downwards, driving the valve body to move. Due to the smaller inner diameter of the small-diameter orifice, less sand and mud enters, making cleaning easier. Simultaneously, the sealing plate ensures smooth water flow during descent, and the small-diameter orifice further increases the water pressure, allowing the sand and mud inside to be quickly flushed out, resulting in higher perforation efficiency.

Description

Technical Field

[0001] This invention relates to the field of mine gas extraction equipment, and in particular to a low-temperature mine hydraulic perforation diverter valve. Background Technology

[0002] Hydraulic perforation refers to the use of water jets sprayed during drilling to flush out coal and methane from protruding coal seams or induce controllable small outbursts, thereby depressurizing the coal body, releasing methane, and eliminating the danger of mining outbursts. After drilling, medium to high water flow through a high-efficiency nozzle impacts the coal body around the borehole, flushing out a large amount of coal and gas. Stress concentration moves towards the area around the perforation, depressurizing and increasing the permeability of the coal body near the perforation, effectively improving the drainage effect.

[0003] The entire operation requires the use of a guide, universal joint, and auger motor. First, the guide is placed inside the borehole. Then, the universal joint is installed on the output shaft of the auger motor. The guide guides the bending direction of the universal joint, which changes the direction of the borehole. Finally, the high-pressure nozzle is used. The whole process is quite complicated.

[0004] Chinese patent CN 202110377583.X discloses a hydraulic perforation directional valve for mining, which increases the number and direction of perforations, allowing for a larger pressure relief space for coal and gas, reducing the danger caused by excessive stress. However, because the operation requires water pressure impact, water will remain inside the directional valve. During the descent of the directional valve, the water flow becomes stagnant. Due to the low working temperature in the mining area, this can easily lead to freezing, affecting the perforation effect. However, if the directional valve descends without load, as the drill bit moves, surrounding sand and soil will enter the interior of the directional valve, which will also have a significant impact on the perforation. Summary of the Invention

[0005] The main objective of this invention is to provide a low-temperature mining hydraulic perforation diversion valve, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a low-temperature mining area hydraulic perforation and diversion valve, comprising a screw motor and a drill bit, wherein the drill bit is fixed on the output shaft of the screw motor, a valve body is mounted on the surface of the screw motor, the top of the valve body is open and the bottom is sealed, a high-pressure hose is installed on the top of the valve body, and multiple punching holes are opened on the side of the valve body and arranged in a ring array on the surface of the valve body;

[0007] The stamping hole includes a large-diameter hole and a small-diameter hole. The large-diameter hole connects to the interior of the valve body, and the small-diameter hole connects to the exterior of the valve body. An oblique hole is formed between the large-diameter hole and the small-diameter hole to connect them. A sealing plate is installed inside the oblique hole. A moving component is installed inside the valve body to open the sealing plate.

[0008] The movable component includes a circular extrusion plate. An annular groove is formed inside the valve body, and the interior of the annular groove communicates with the interior of the large-diameter hole. The extrusion plate is movably installed inside the annular groove via a support component. The top of the extrusion plate abuts against the top of the inner wall of the annular groove, and the bottom of the extrusion plate is spaced apart from the bottom of the inner wall of the annular groove. Multiple connecting rods are fixedly installed on the side of the extrusion plate, and the ends of the connecting rods are connected to the sealing plate via torsion springs.

[0009] A mounting bracket is fixedly installed on the side of the sealing plate, and a rotating shaft is fixedly installed at the end of the connecting rod. The rotating shaft is movably disposed inside the mounting bracket. Circular grooves are opened on both sides of the end of the connecting rod. The torsion spring is sleeved on the surface of the rotating shaft. One end of the torsion spring is fixed inside the circular groove, and the other end of the torsion spring is fixed inside the mounting bracket.

[0010] The support assembly includes a support spring, which is installed inside the valve body, and one end of the support spring is fixed to the lower surface of the extrusion plate.

[0011] A permanent magnet block is fixedly installed at the bottom of the inner wall of the valve body. The permanent magnet block is located directly below the extrusion plate. The other end of the support spring is fixed to the surface of the permanent magnet block. The extrusion plate is made of a metal material containing iron, cobalt, and nickel. A shielding plate is provided below the permanent magnet block.

[0012] The screw motor is a dual-shaft motor. A mounting plate is fixedly connected to the top of the output shaft of the screw motor. The valve body is fixed to the upper surface of the mounting plate through a connecting assembly. A sealed bearing is fixedly installed on the inner side of the top of the valve body. An external threaded pipe is fixedly installed inside the sealed bearing.

[0013] The connecting assembly includes a C-shaped latch rod mounted on the lower surface of the valve body, and an L-shaped locking rod mounted on the upper surface of the mounting plate, the locking rod being inserted into the latch rod.

[0014] Two of each of the latch rods and clamp rods are provided, symmetrically arranged at corresponding positions on the valve body and the mounting plate. A transverse groove is formed on the surface of the mounting plate. One end of the clamp rod is movably installed inside the transverse groove. A guide rod is fixedly installed inside the transverse groove. The end of the guide rod movably passes through the surface of the clamp rod. A connecting spring is sleeved on the surface of the guide rod. One end of the connecting spring is fixed to the surface of the clamp rod and the other end is fixed inside the transverse groove. A gap is provided between the side of the clamp rod and the side of the transverse groove near the center of the mounting plate.

[0015] The side of the clamp rod is spaced apart from the side of the horizontal groove near the edge of the mounting plate. A horizontal plate is fixedly installed on the side of the clamp rod, and the horizontal plate and the clamp rod are integrally formed.

[0016] The lower surface of the valve body has four grooves. The end of the latch rod is movably installed inside the groove. A mounting spring is provided inside the groove. One end of the mounting spring is fixed to the inner wall of the groove, and the other end of the mounting spring is fixed to the end of the latch rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In this invention, by setting a large-diameter hole, a small-diameter hole and a valve body, the drill bit moves down and the valve body is moved by the spiral motor. Sand and mud will enter the interior of the small-diameter hole. Since the inner diameter of the small-diameter hole is smaller, less sand and mud enters the interior, and it is easier to clean. At the same time, the blocking of the sealing plate can ensure the smoothness of the water flow when falling. The small-diameter hole can also further increase the pressure of the water flow, so that the mud and sand inside the small-diameter hole are quickly flushed out, and the flushing efficiency is also higher.

[0019] 2. In this invention, by setting a support spring, a sealing plate, and a torsion spring, the extrusion plate moves downward under the action of water pressure, and the support spring is compressed. At this time, the connecting rod drives the sealing plate to move downward. Since the sealing plate is located inside the inclined hole, its surface is set to be inclined. Therefore, the sealing plate will rotate around the end of the connecting rod until it abuts against the inclined surface of the inclined hole. At this time, the sealing plate opens. No additional power is required in this process, which reduces the pressure of installation in the internal space of the valve body and also reduces the cost of use.

[0020] 3. In this invention, by setting a permanent magnet block and an extrusion plate, when the water flow impacts the surface of the extrusion plate, the distance between the extrusion plate and the permanent magnet block decreases, and the adsorption force increases until the extrusion plate is located at the bottom of the inner wall of the annular groove and is in a stable state. After that, the water flow does not need to provide continuous pressure to maintain the state of the extrusion plate. At this time, the pressure of the water flow is all applied to the position of the small diameter hole, so the water pressure at the small diameter hole will be greater and the punching efficiency will be higher.

[0021] 4. In this invention, by setting up a screw motor, mounting plate and valve body, the high-speed operation of the screw motor will cause friction between the valve body and the inner wall of the borehole. The faster the rotation speed, the higher the heat generated by friction. The heat generated can be exchanged with the water flow entering the valve body. Since the drilling is carried out in a low-temperature mining area, the drilling water with a certain temperature can melt and penetrate the soil that may be frozen more quickly, improving the drilling efficiency. At the same time, the water flow completes the heat exchange with the frozen soil during the drilling process, and will not pose a safety threat to gas and coal.

[0022] 5. In this invention, by setting a transverse groove, a mounting plate, and a locking rod, the transverse groove is set at a distance on the side near the edge of the mounting plate. Since the mounting plate can rotate with the screw motor, and the locking rod is located inside the mounting plate, it will move away from the center of the mounting plate due to centrifugal force. At this time, the locking rod can be firmly locked inside the latch rod, and the valve body will not easily fall off, ensuring the stability of the installation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a low-temperature mining area hydraulic perforation diverter valve according to the present invention.

[0024] Figure 2 This is a cross-sectional view of the valve body of a hydraulic perforation diverting valve for low-temperature mining areas according to the present invention.

[0025] Figure 3 This is a schematic diagram of the torsion spring position portion of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0026] Figure 4 This is a schematic diagram of the extrusion plate position portion of a hydraulic perforation diverter valve for low-temperature mining areas according to the present invention.

[0027] Figure 5 This is a schematic diagram of the connecting rod position of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0028] Figure 6 This is a schematic diagram of the sealing bearing position of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0029] Figure 7 This is a schematic diagram of the transverse groove portion of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0030] Figure 8 This is a schematic diagram of the connecting spring position portion of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0031] Figure 9 This is a schematic diagram of the lever position portion of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0032] Figure 10 This is a schematic diagram of the groove position portion of a hydraulic perforation steering valve for low-temperature mining areas according to the present invention.

[0033] In the diagram: 1. Screw motor; 2. Drill bit; 3. Valve body; 4. Punching hole; 5. Large diameter hole; 6. Small diameter hole; 7. Inclined hole; 8. Sealing plate; 9. Extrusion plate; 10. Annular groove; 11. Mounting spring; 12. Connecting rod; 13. Torsion spring; 14. Mounting bracket; 15. Shaft; 16. Circular groove; 17. Support spring; 18. Permanent magnet; 19. Mounting plate; 20. Sealed bearing; 21. External threaded pipe; 22. Buckle rod; 23. Clamping rod; 24. Horizontal groove; 25. Guide rod; 26. Connecting spring; 27. Horizontal plate; 28. Groove; 29. ​​Shielding plate. Detailed Implementation

[0034] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0035] like Figure 1-10 As shown, a low-temperature mining hydraulic perforation steering valve includes a screw motor 1 and a drill bit 2, such as... Figure 1 As shown, the screw motor 1 itself has an anti-rotation structure. The drill bit 2 is fixed on the output shaft of the screw motor 1 and is located below the screw motor 1. A valve body 3 is installed on the surface of the screw motor 1 and is located above the screw motor 1. When the screw motor 1 rotates, the drill bit 2 plays the role of drilling and moving. The valve body 3 moves with the screw motor 1. The top of the valve body 3 is open and the bottom is sealed. A high-pressure hose is installed on the top of the valve body 3. High-pressure water is introduced into the interior of the valve body 3 through the high-pressure hose. Multiple punching holes 4 are opened on the side of the valve body 3. In this embodiment, the number of punching holes 4 is set to four, arranged in a ring array on the surface of the valve body 3.

[0036] The stamping hole 4 includes a large-diameter hole 5 and a small-diameter hole 6, such as Figure 2 As shown, water flows into the interior of the large-diameter hole 5 and out through the small-diameter hole 6. Due to the change in the diameter of the hole, the water flowing into the valve body 3 can be further pressurized, thereby increasing the water pressure. This will have a better impact effect on some frozen soil in low-temperature mining areas. The large-diameter hole 5 connects to the interior of the valve body 3, and the small-diameter hole 6 connects to the exterior of the valve body 3. An inclined hole 7 is opened between the large-diameter hole 5 and the small-diameter hole 6. A sealing plate 8 is installed inside the inclined hole 7, which separates the small-diameter hole 6 and the inclined hole 7. Because the diameter of the small-diameter hole 6 is small, less sand and mud from the surrounding soil enters the small-diameter hole 6, making it easier to be flushed away by high-pressure water. A moving component is installed inside the valve body 3 to open the sealing plate 8.

[0037] During the punching process, the auger motor 1 is first turned on to allow the drill bit 2 to drill. The drill bit 2 moves downward, and the auger motor 1 drives the valve body 3 to move until the drill bit 2 moves to the designated position. At this time, sand and mud will enter the interior of the small diameter hole 6. The sealing plate 8 can prevent the sand and mud from further entering the interior of the large diameter hole 5. At the same time, the small diameter hole 6 has less mud and sand, which is easier to clean and ensures the smooth flow of water when it falls. At this time, the sealing plate 8 is opened by the moving component. The water flows through the valve body 3, the interior of the large diameter hole 5 and the inclined hole 7, and flows out from the interior of the small diameter hole 6. At this time, because the inner diameter of the small diameter hole 6 is smaller, the water pressure can be increased, so that the mud and sand inside the small diameter hole 6 can be quickly flushed out, and the punching efficiency is also higher. During the drilling process, since the water flow does not need to be inside the valve body 3, the problem of water freezing is avoided as much as possible.

[0038] The moving component includes a circular extrusion plate 9. An annular groove 10 is provided inside the valve body 3. The diameter of the extrusion plate 9 is exactly matched with the inner diameter of the annular groove 10. The interior of the annular groove 10 is connected to the interior of the large-diameter hole 5. The extrusion plate 9 is movably installed inside the annular groove 10 through a support component. The side of the extrusion plate 9 is just abutted against the entrance of the large-diameter hole 5. The top of the extrusion plate 9 abuts against the top of the inner wall of the annular groove 10. The bottom of the extrusion plate 9 is spaced away from the bottom of the inner wall of the annular groove 10, so that the extrusion plate 9 has space to move downward. When the extrusion plate 9 moves down to the bottom position, the large-diameter hole 5 is exposed. Multiple connecting rods 12 are fixedly installed on the side of the extrusion plate 9. The number of connecting rods 12 is the same as the number of punch holes 4 and their positions correspond. The ends of the connecting rods 12 are connected to the sealing plate 8 through a torsion spring 13. The initial state of the torsion spring 13 is to make the sealing plate 8 and the connecting rods 12 perpendicular.

[0039] When high-pressure water enters the valve body 3, the water pressure is greater than the supporting force of the support assembly. At this time, the squeezing plate 9 moves downward under the action of water pressure. The connecting rod 12 then moves the sealing plate 8 downward. Since the sealing plate 8 is located inside the inclined hole 7, its surface is set to be inclined. When the sealing plate 8 is subjected to a lateral downward pulling force, the sealing plate 8 will rotate around the end of the connecting rod 12 until it abuts against the inclined surface of the inclined hole 7. At this time, the sealing plate 8 opens. No additional power is required in this process, which reduces the pressure of installation in the internal space of the valve body 3 and also reduces the cost of use.

[0040] A mounting bracket 14 is fixedly installed on the side of the sealing plate 8. The mounting bracket 14 and the sealing plate 8 are integrally formed. A rotating shaft 15 is fixedly installed at the end of the connecting rod 12. The rotating shaft 15 is movably disposed inside the mounting bracket 14. Circular grooves 16 are opened on both sides of the end of the connecting rod 12. A torsion spring 13 is sleeved on the surface of the rotating shaft 15. One end of the torsion spring 13 is fixed inside the circular groove 16, and the other end of the torsion spring 13 is fixed inside the mounting bracket 14. When the sealing plate 8 rotates, the torsion spring 13 is in a coiled state. Therefore, when the extrusion plate 9 returns to the initial state, the rebound force of the torsion spring 13 will cause the sealing plate 8 to return to the initial position.

[0041] The support assembly includes a support spring 17, which is installed inside the valve body 3. One end of the support spring 17 is fixed to the lower surface of the extrusion plate 9. When the water flows downward, it will first compress the support spring 17. During the punching process, as long as the water pressure is maintained, the large diameter hole 5 can be kept open. When punching stops, the rebound force of the support spring 17 can make the extrusion plate 9 return to its initial state without readjustment, which is convenient for the next use.

[0042] A permanent magnet block 18 is fixedly installed at the bottom of the inner wall of the valve body 3. The permanent magnet block 18 is located directly below the extrusion plate 9, and there is a certain distance between the permanent magnet block 18 and the extrusion plate 9. The other end of the support spring 17 is fixed to the surface of the permanent magnet block 18. The extrusion plate 9 is made of a metal material containing iron, cobalt and nickel, so that the extrusion plate 9 can be attracted by the permanent magnet block 18. A shielding plate 29 is provided below the permanent magnet block 18 to shield the magnetism of the permanent magnet block 18 and reduce the impact on the use of the screw motor 1.

[0043] According to the formula for calculating the attraction force of a magnet: F(d)=K*(m1*m2) / d^2, the closer the distance between the extrusion plate 9 and the permanent magnet block 18, the greater the attraction force will be. In the initial state, the attraction force of the permanent magnet block 18 on the extrusion plate 9 is less than the sum of the frictional force and other resistances caused by the support spring 17 and the torsion spring 13. When the water flow impacts the surface of the extrusion plate 9, the distance between the extrusion plate 9 and the permanent magnet block 18 decreases, and the attraction force will increase by a square multiple until the extrusion plate 9 is located at the bottom of the inner wall of the annular groove 10 and is in a stable state. After that, it is not necessary for the water flow to provide continuous pressure to maintain the state of the extrusion plate 9. At this time, the pressure of the water flow is all applied to the position of the small diameter hole 6, so the water pressure at the small diameter hole 6 will also be greater.

[0044] When the punching stops, since the extrusion plate 9 and the permanent magnet block 18 are not in complete contact, the extrusion plate 9 can be returned to its initial state by swinging the valve body 3 and using inertia, or the extrusion plate 9 can be attracted from the open side of the valve body 3 by using a magnet with stronger magnetism.

[0045] The screw motor 1 is a dual-shaft motor, meaning it has rotating shafts on both sides. A mounting plate 19 is fixedly connected to the top of the output shaft of the screw motor 1. The mounting plate 19 is a circular plate with the same diameter as the valve body 3. The valve body 3 is fixed to the upper surface of the mounting plate 19 via a connecting assembly. Figure 6 As shown, a sealed bearing 20 is fixedly installed on the inner side of the top of the valve body 3. An external threaded pipe 21 is fixedly installed inside the sealed bearing 20. The high-pressure hose is installed on the surface of the external threaded pipe 21 and will not rotate with the valve body 3.

[0046] When the screw motor 1 rotates, it not only drives the drill bit 2 to rotate, but also drives the valve body 3 to rotate. Due to the high speed of the screw motor 1, friction is generated between the valve body 3 and the inner wall of the borehole. The faster the rotation speed, the higher the heat generated by friction. Therefore, during the downward movement of the screw motor 1, the valve body 3 and the inner wall of the borehole generate continuous high-temperature heat. The heat generated can be exchanged with the water flowing into the valve body 3. Since the drilling is carried out in a low-temperature mining area, the drilling water with a certain temperature can melt and penetrate the soil that may be frozen more quickly. At the same time, the water flow completes the heat exchange with the frozen soil during the drilling process, and will not pose a safety threat to gas and coal.

[0047] The connecting assembly includes a C-shaped latch 22, which is mounted on the lower surface of the valve body 3, and an L-shaped locking rod 23 is mounted on the upper surface of the mounting plate 19, which is inserted into the inside of the latch 22.

[0048] Two latch rods 22 and two locking rods 23 are provided, symmetrically arranged at corresponding positions on the valve body 3 and the mounting plate 19, respectively. Two transverse grooves 24 are formed on the surface of the mounting plate 19. One end of the locking rod 23 is movably installed inside the transverse groove 24. A guide rod 25 is fixedly installed inside the transverse groove 24. The end of the guide rod 25 moves through the surface of the locking rod 23. A connecting spring 26 is sleeved on the surface of the guide rod 25. One end of the connecting spring 26 is fixed to the surface of the locking rod 23 and the other end is fixed inside the transverse groove 24. The side of the locking rod 23 is set at a distance from the side of the transverse groove 24 near the center of the mounting plate 19 to ensure that the locking rod 23 can move towards the center of the mounting plate 19. During installation, the two locking rods 23 are moved towards each other, the valve body 3 is placed above the mounting plate 19, and the elasticity of the connecting spring 26 is used to lock it inside the latch rod 22.

[0049] The side of the locking rod 23 is set at a distance from the side of the transverse groove 24 near the edge of the mounting plate 19. Since the mounting plate 19 can rotate with the screw motor 1, the locking rod 23 is located inside the mounting plate 19. Therefore, it will move away from the center of the mounting plate 19 due to centrifugal force. At this time, the locking rod 23 can be firmly locked inside the latch rod 22, and the valve body 3 will not easily fall off, ensuring the stability of the installation. A transverse plate 27 is fixedly installed on the side of the locking rod 23, which has a certain shielding effect on the transverse groove 24. The transverse plate 27 and the locking rod 23 are integrally formed.

[0050] Four grooves 28 are formed on the lower surface of the valve body 3. The end of the latch rod 22 is movably installed inside the groove 28. A mounting spring 11 is provided inside the groove 28. One end of the mounting spring 11 is fixed to the inner wall of the groove 28, and the other end of the mounting spring 11 is fixed to the end of the latch rod 22. The latch rod 22 can only move along the axial direction of the groove 28. At this time, it is inconvenient to disassemble the valve body 3. Pulling the valve body 3 upward makes it have a larger gap with the mounting plate 19, which facilitates the movement of the latch rod 23.

[0051] It should be noted that this invention is a hydraulic perforation and diversion valve for low-temperature mining areas. In use, the two locking rods 23 are moved in opposite directions, placing the valve body 3 above the mounting plate 19. The elasticity of the connecting spring 26 causes it to engage inside the locking rod 22. The high-pressure hose is installed on the surface of the externally threaded pipe 21. The auger motor 1 is turned on, allowing the drill bit 2 to drill. The drill bit 2 moves downwards, driving the valve body 3 through the auger motor 1 until the drill bit 2 reaches the designated position. At this point, sand and mud will enter the small-diameter hole 6. The sealing plate 8 prevents the sand and mud from further entering. The valve body 3 is moved into the large-diameter hole 5. When it reaches the designated position, high-pressure water flows into the valve body 3. The water pressure is greater than the elastic force of the support spring 17, causing the compression plate 9 to move downward and the support spring 17 to be compressed. The connecting rod 12 then moves the sealing plate 8 downward. Since the sealing plate 8 is located inside the inclined hole 7, its surface is set to be inclined. When the sealing plate 8 is subjected to a lateral downward pulling force, it will rotate around the end of the connecting rod 12 until it abuts against the inclined surface of the inclined hole 7. At this time, the sealing plate 8 opens, and water flows through the valve body 3, the large-diameter hole 5, and the interior of the inclined hole 7. The water flows out from inside the small-diameter hole 6. Because the inner diameter of the small-diameter hole 6 is smaller, the water pressure increases, causing the sediment inside to be quickly flushed out, and the flushing efficiency is also higher. During this process, the distance between the extrusion plate 9 and the permanent magnet block 18 decreases, and the adsorption force increases quadratically until the extrusion plate 9 is located at the bottom of the inner wall of the annular groove 10 and is in a stable state. After this, no continuous pressure from the water flow is needed to maintain the state of the extrusion plate 9; at this point, all the water pressure is applied to the small-diameter hole 6, therefore the water pressure in the small-diameter hole 6 will also... The larger the rotation speed, the greater the frictional heat generated between the valve body 3 and the inner wall of the borehole. The faster the rotation speed, the higher the heat generated by the friction. The valve body 3 and the inner wall of the borehole generate continuous high-temperature heat, which can be exchanged with the water flowing into the valve body 3. This results in higher drilling efficiency in low-temperature mining areas. Finally, when the screw motor 1 is removed, the valve body 3 is pulled upward to create a larger gap between it and the mounting plate 19. The position of the clamping rod 23 is then moved, allowing the valve body 3 to be quickly removed for maintenance.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic perforation steering valve for low-temperature mining areas, comprising a screw motor (1) and a drill bit (2), wherein the drill bit (2) is fixed on the output shaft of the screw motor (1), characterized in that: The surface of the screw motor (1) is fitted with a valve body (3), the top of the valve body (3) is open and the bottom is sealed, a high pressure hose is installed on the top of the valve body (3), and multiple punch holes (4) are opened on the side of the valve body (3) in a ring array on the surface of the valve body (3). The stamping hole (4) includes a large diameter hole (5) and a small diameter hole (6). The large diameter hole (5) is connected to the interior of the valve body (3), and the small diameter hole (6) is connected to the exterior of the valve body (3). An oblique hole (7) is opened between the large diameter hole (5) and the small diameter hole (6). A sealing plate (8) is installed inside the oblique hole (7). A moving component is installed inside the valve body (3) to open the sealing plate (8). The moving component includes a circular extrusion plate (9). An annular groove (10) is formed inside the valve body (3). The interior of the annular groove (10) communicates with the interior of the large-diameter hole (5). The extrusion plate (9) is movably mounted inside the annular groove (10) via a support assembly. The top of the extrusion plate (9) abuts against the top of the inner wall of the annular groove (10), and the bottom of the extrusion plate (9) is spaced from the bottom of the inner wall of the annular groove (10). Multiple connecting rods (12) are fixedly mounted on the side of the extrusion plate (9). The ends of the connecting rods (12) are... The sealing plate (8) is connected to the sealing plate (8) by a torsion spring (13); a mounting bracket (14) is fixedly installed on the side of the sealing plate (8), and a rotating shaft (15) is fixedly installed at the end of the connecting rod (12). The rotating shaft (15) is movably disposed inside the mounting bracket (14). Circular grooves (16) are opened on both sides of the end of the connecting rod (12). The torsion spring (13) is sleeved on the surface of the rotating shaft (15). One end of the torsion spring (13) is fixed inside the circular groove (16), and the other end of the torsion spring (13) is fixed inside the mounting bracket (14). The support assembly includes a support spring (17), which is installed inside the valve body (3). One end of the support spring (17) is fixed to the lower surface of the extrusion plate (9). A permanent magnet block (18) is fixedly installed at the bottom of the inner wall of the valve body (3). The permanent magnet block (18) is located directly below the extrusion plate (9). The other end of the support spring (17) is fixed to the surface of the permanent magnet block (18). The extrusion plate (9) is made of a metal material containing iron, cobalt, and nickel. A shielding plate (29) is provided below the permanent magnet block (18).

2. The hydraulic perforation diverting valve for low-temperature mining areas according to claim 1, characterized in that: The screw motor (1) is a dual-shaft motor. The top of the output shaft of the screw motor (1) is fixedly connected to a mounting plate (19). The valve body (3) is fixed to the upper surface of the mounting plate (19) through a connecting assembly. A sealing bearing (20) is fixedly installed on the inner side of the top of the valve body (3). An external threaded pipe (21) is fixedly installed inside the sealing bearing (20).

3. A hydraulic perforation diverting valve for low-temperature mining areas according to claim 2, characterized in that: The connecting assembly includes a C-shaped latch (22) mounted on the lower surface of the valve body (3), and an L-shaped locking rod (23) mounted on the upper surface of the mounting plate (19), the locking rod (23) being inserted into the inside of the latch (22).

4. A hydraulic perforation diverting valve for low-temperature mining areas according to claim 3, characterized in that: Two of each of the latch rods (22) and the locking rods (23) are provided, respectively symmetrically arranged at corresponding positions on the valve body (3) and the mounting plate (19). A transverse groove (24) is provided on the surface of the mounting plate (19). One end of the locking rod (23) is movably installed inside the transverse groove (24). A guide rod (25) is fixedly installed inside the transverse groove (24). The end of the guide rod (25) movably passes through the surface of the locking rod (23). A connecting spring (26) is sleeved on the surface of the guide rod (25). One end of the connecting spring (26) is fixed on the surface of the locking rod (23). One end of the connecting spring (26) is fixed inside the transverse groove (24). A gap is provided between the side of the locking rod (23) and the side of the transverse groove (24) near the center of the mounting plate (19).

5. A hydraulic perforation diverting valve for low-temperature mining areas according to claim 4, characterized in that: The side of the clamp (23) is spaced away from the side of the horizontal groove (24) near the edge of the mounting plate (19). A horizontal plate (27) is fixedly installed on the side of the clamp (23). The horizontal plate (27) and the clamp (23) are integrally formed.

6. A hydraulic perforation diverting valve for low-temperature mining areas according to claim 5, characterized in that: The lower surface of the valve body (3) is provided with four grooves (28). The end of the lever (22) is movably installed inside the groove (28). A mounting spring (11) is provided inside the groove (28). One end of the mounting spring (11) is fixed to the inner wall of the groove (28), and the other end of the mounting spring (11) is fixed to the end of the lever (22).

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