Coal mine water supply equipment

Abstract

The invention discloses coal mine water supply equipment, and belongs to the technical field of water supply devices, the coal mine water supply equipment comprises a branch flow pressure stabilizing assembly, a main and branch pipeline balancing assembly, a main pipeline partial pressure transformation assembly and a main flow pipeline, the main pipeline partial pressure transformation assembly comprises a fastening assembly arranged on the side face of the main flow pipeline, and a pipeline tensioning assembly is arranged on the side face of the fastening assembly; a pipeline cut-off end closing cover is arranged at one end of the pipeline tensioning assembly, a purified water pipeline communicating pipe is arranged in the middle of the pipeline cut-off end closing cover, and a purified water pipeline assembly is arranged in the purified water pipeline communicating pipe. The water pressure of the water purification inner sleeve is balanced through water pressure in the main flow pipeline, pipe explosion is avoided, the water purification inner sleeve is internally arranged, purified water supply can be guaranteed when the well mine collapses and the pipeline is bent, the pipeline cut-off end closing cover can be matched with the protection pipeline and the normal water use butt joint pipe to rapidly complete pipeline transformation, cut-off type arrangement is achieved, and the water purification effect is good. And an original pipeline can be divided into multiple sections to bear pressure in sections.

Description

Technical Field

[0001] This invention relates to the field of water supply equipment technology, and more particularly to a coal mine water supply equipment. Background Technology

[0002] Existing coal mine water supply equipment uses gravity-fed static pressure water supply and water supply from the pool surface to the mine shaft. At present, gravity-fed static pressure water supply will result in insufficient water supply in shallow wells and high water pressure in deep wells, which may cause pipe bursts. In order to solve the problems in shallow and deep wells, booster pumps and pressure-reducing pools are used. However, this can only guarantee the main pipe pressure, and maintaining the operation of the water pump requires a lot of electricity. At the same time, regular maintenance is required, which wastes a lot of manpower.

[0003] To address the current problems with water supply equipment, a new type of water supply equipment is proposed that can ensure self-regulation of pressure in the main pipeline and branch pipelines without requiring frequent maintenance. Furthermore, to avoid wasting manpower and financial resources on re-laying pipelines, this equipment can be modified based on existing pipelines, greatly shortening the time required for upgrading old pipeline networks and reducing the impact on coal mine operations. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of insufficient water supply in shallow wells and easy pipe bursts due to high water pressure in deep wells when using gravity-fed static pressure water supply, as well as the problems of using booster pumps and depressurization tanks to only guarantee the main pipe pressure, wasting a lot of electricity to maintain the operation of the water pump and making subsequent equipment maintenance difficult. Therefore, this invention proposes a coal mine water supply equipment.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A coal mine water supply device includes a tributary pressure stabilizing component, a main-branch pipeline balancing component, a main pipeline pressure-dividing modification component, and a main pipeline. The main pipeline pressure-dividing modification component includes a fastening component located on the side of the main pipeline. A pipeline tensioning component is located on the side of the fastening component. A pipeline cut-off end closing cap is located at one end of the pipeline tensioning component. A clean water pipeline connecting pipe is located in the middle of the pipeline cut-off end closing cap. A clean water pipeline component is located inside the clean water pipeline connecting pipe. A protective pipeline is fitted at one end of the clean water pipeline connecting pipe. An extension pipe is located on the surface of the pipeline cut-off end closing cap, and there are three extension pipes. A connecting nut pipe is threaded to the bottom of the extension pipe. A normal water supply connecting pipe is fitted at one end of the connecting nut pipe. A tributary pipeline connecting groove is opened on the side of the normal water supply connecting pipe. A branch pipeline is fixed to the inner wall of the tributary pipeline connecting groove. A flow rate regulating motor is fixed to the top of the branch pipeline. A drive gear is fixed to one end of the flow rate regulating motor. A pressure-dividing guide plate is meshed with the side of the drive gear. The pressure-dividing guide plate is inserted into the branch pipeline. The main and branch pipeline balancing assembly includes an outlet pipe, one end of which is inserted into the end of one of the branch pipes. A water pressure regulating ball is inserted inside the outlet pipe. An impact groove is provided at the diagonal part of the water pressure regulating ball. A reset assembly is provided at the top of the water pressure regulating ball.

[0007] Preferably, the main pipeline pressure-dividing modification component is located at the cut-off end of the main pipeline, and the main pipeline pressure-dividing modification component is connected to the branch pressure-stabilizing component through the main branch pipeline balancing component.

[0008] Preferably, one end of the pressure-distributing guide plate is a sloping end, and a water-guiding groove is provided on the sloping end of the pressure-distributing guide plate.

[0009] Preferably, the fastening assembly includes a fastening buckle sleeved on the side of the main pipe, a connecting bolt inserted into the inner wall of the fastening buckle, and fastening nuts connected to both ends of the connecting bolt via threaded grooves.

[0010] Preferably, the pipe tensioning assembly includes an inclined groove formed on the side of the fastening buckle, a tensioning buckle is inserted into the inner wall of the inclined groove, an adjusting bolt is inserted into one end of the tensioning buckle, a flip-over buckle is threaded to one end of the adjusting bolt, and one end of the flip-over buckle is hinged to the outside of the pipe cut-off end closing cover via a shaft.

[0011] Preferably, the water purification pipe assembly includes a water purification inner sleeve inserted into the inner wall of the water purification pipe connecting pipe, a connecting collar is fixed to the end of the water purification inner sleeve, an outer lead pipe is fixed to the side of the water purification inner sleeve, and one end of the outer lead pipe passes through the protective pipe.

[0012] Preferably, the reset assembly includes a vertical anchor fixed to the top of the water pressure regulating ball, one end of the vertical anchor passing through the outlet pipe, and the top of the vertical anchor being connected to the outlet pipe via a reset coil spring.

[0013] Preferably, the tributary pressure stabilizing assembly includes a water storage and pressure stabilizing tank fixed to one end of the outlet pipe. A vertical sleeve is fixed to the top of the water storage and pressure stabilizing tank. A pressure-boosting spring is fixed inside the vertical sleeve. A piston rod is fixed to the bottom of the pressure-boosting spring. A tank cover plate is fixed to the bottom of the piston rod. The bottom of the tank cover plate is inserted into the interior of the water storage and pressure stabilizing tank.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, through the setting of the main pipeline pressure-dividing modification component, allows the clean water pipeline connecting pipe to place the clean water inner sleeve inside the main pipeline. The water pressure in the main pipeline balances the water pressure in the clean water inner sleeve, preventing pipe bursting. Furthermore, the built-in clean water inner sleeve ensures clean water supply even when the pipeline is bent due to mine collapse, improving rescue efficiency. The closed cap at the pipeline cut-off end can quickly complete pipeline modification in conjunction with protective pipelines and normal water supply connecting pipes. The cut-off design divides the original pipeline into multiple sections for pressure distribution, preventing excessive water pressure in the main pipeline at the bottom of deep wells from causing pipe bursts. The inclined end of the baffle plate can quickly draw water out of the normal water supply connection pipe. Because it can accelerate the water flow, it can reduce the accumulation of salt and impurities in the normal water and avoid blockage of the outlet pipe. At the same time, when the water pressure in the normal water supply connection pipe is low, the pressure can be increased by moving the pressure-dividing baffle plate to increase the interception area. When the water pressure in the normal water supply connection pipe increases or decreases, the water pressure regulating ball can be used to supply water to the branch pressure stabilizing component to reduce the water pressure, or to supplement the water flow from the branch pressure stabilizing component to the normal water supply connection pipe to increase the water pressure in the pipe, so as to ensure the stability of the water pressure in the branch pipe.

[0015] 2. This invention utilizes the combined arrangement of a water pressure regulating ball and an impact groove. When the water pressure in the normal water supply connection pipe and the water storage and stabilizing tank is the same, the water pressure regulating ball closes the outlet pipe. When the water pressure in either the normal water supply connection pipe or the water storage and stabilizing tank deviates, the water pressure regulating ball can rotate through the impact groove on the side to connect the normal water supply connection pipe and the water storage and stabilizing tank, promptly replenishing or releasing water pressure to ensure stable water pressure in the tributary and main pipes. This structure is a mechanical structure, which can reduce power consumption and lower the frequency of equipment maintenance.

[0016] 3. This invention, through the coordinated arrangement of pipe tensioning components and fastening components, can quickly connect the pipe cut-off end cover with the cut-off point of the main pipe, complete the transformation of the original pipe network, reduce the impact on water supply for coal mine construction, and make subsequent maintenance and dredging of the pipe very convenient, greatly reducing the difficulty of later maintenance for workers. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a coal mine water supply equipment proposed in this invention; Figure 2 This is a schematic diagram of the overall exploded structure of a coal mine water supply equipment proposed in this invention; Figure 3 This is a schematic diagram of the exploded structure of a pressure-dividing modification component for the main pipeline of a coal mine water supply equipment proposed in this invention. Figure 4 This is a schematic diagram of the exploded structure of the normal water supply connection point of a coal mine water supply equipment proposed in this invention; Figure 5 This is a schematic diagram of the exploded structure of the pressure-distributing guide plate of a coal mine water supply equipment proposed in this invention; Figure 6 This is a schematic diagram of the exploded structure of the main and branch pipeline balancing assembly of a coal mine water supply equipment proposed in this invention.

[0018] In the diagram: 1. Mainstream pipe; 2. Pipe cut-off end closing cap; 3. Clean water pipe connecting pipe; 4. Protective pipe; 5. Extension pipe; 6. Connecting nut pipe; 7. Normal water supply connecting pipe; 8. Branch pipe connecting groove; 9. Branch pipe; 10. Flow rate regulating motor; 11. Drive gear; 12. Pressure dividing guide plate; 13. Outlet pipe; 14. Water pressure regulating ball; 15. Impact groove; 16. Water inlet groove; 17. Fastening buckle; 18. Connecting bolt; 19. Fastening nut; 20. Tensioning buckle; 21. Adjusting bolt; 22. Flip buckle plate; 23. Clean water inner sleeve; 24. Connecting collar; 25. External outlet pipe; 26. Vertical anchor post; 27. Return coil spring; 28. Water storage and pressure stabilizing tank; 29. ​​Vertical sleeve; 30. Pressure boosting spring; 31. Piston rod; 32. Tank top cover plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Example, refer to Figures 1 to 6A coal mine water supply device includes a tributary pressure stabilizing component, a main branch pipeline balancing component, a main pipeline pressure reducing modification component, and a main pipeline 1. The main pipeline pressure reducing modification component is located at the cut-off end of the main pipeline 1. The main pipeline pressure reducing modification component is connected to the tributary pressure stabilizing component through the main branch pipeline balancing component. Further, the tributary pressure stabilizing component includes a water storage and pressure stabilizing tank 28 fixed to one end of the outlet pipeline 13. A vertical sleeve 29 is fixed to the top of the water storage and pressure stabilizing tank 28. A pressure-boosting spring 30 is fixed inside the vertical sleeve 29. A piston rod 31 is fixed to the bottom of the pressure-boosting spring 30. A tank cover plate 32 is fixed to the bottom of the piston rod 31. The bottom of the tank cover plate 32 is inserted into the interior of the water storage and pressure stabilizing tank 28.

[0023] The further advantage of the above is that the water storage and pressure stabilizing tank 28 can supply water to the normal water supply connection pipe 7 through the outlet pipe 13 to supplement the water pressure in the main pipe 1, thereby maintaining the stability of the water pressure in the normal water supply connection pipe 7 of the tributary. Conversely, when the water pressure in the main pipe 1 is high, water can be supplied to the water storage and pressure stabilizing tank 28 through the outlet pipe 13 to avoid the water pressure in the main pipe 1 and the normal water supply connection pipe 7 being too high and causing the pipe to burst. The pressure boosting spring 30 can provide a reaction force when the water level rises and drives the tank cover plate 32 to rise, providing the necessary conditions for quickly replenishing the water pressure when the water pressure in the normal water supply connection pipe 7 drops.

[0024] The main pipeline pressure distribution modification component includes a fastening component located on the side of the main pipeline 1. Further, the fastening component includes a fastening buckle 17 sleeved on the side of the main pipeline 1. A connecting bolt 18 is inserted into the inner wall of the fastening buckle 17, and the two ends of the connecting bolt 18 are connected to fastening nuts 19 through threaded grooves.

[0025] A further advantage of the above is that by rotating the fastening nuts 19 at both ends of the connecting bolt 18, the fastening ring 17 can be fixed to the cut end of the main pipe 1, providing the necessary conditions for the subsequent installation and fixing of the pipe cut end closing cover 2 to the cut end of the main pipe 1.

[0026] The fastening assembly has a pipe tensioning assembly on its side. Further, the pipe tensioning assembly includes an inclined groove on the side of the fastening ring 17. A tensioning buckle 20 is inserted into the inner wall of the inclined groove. An adjusting bolt 21 is inserted into one end of the tensioning buckle 20. A flip-up buckle 22 is threaded to one end of the adjusting bolt 21. One end of the flip-up buckle 22 is hinged to the outside of the pipe cut-off end closing cover 2 via a shaft.

[0027] The further advantage of the above is that by fastening one end of the tensioning buckle 20 into the inclined groove on the side of the fastening ring 17, the pipe cut-off end closing cover 2 can be spliced ​​together with the cut-off end of the main pipe 1. By rotating the adjusting bolt 21, the gap between the tensioning buckle 20 and the flip-up buckle 22 can be reduced, thereby making the pipe cut-off end closing cover 2 and the main pipe 1 tightly closed to prevent water leakage. At the same time, a sealing gasket can be installed at the joint between the pipe cut-off end closing cover 2 and the main pipe 1 to ensure the sealing of the pipe joint.

[0028] One end of the pipe tensioning assembly is provided with a pipe cut-off end closing cap 2, and the middle of the pipe cut-off end closing cap 2 is provided with a clean water pipe connecting pipe 3. The clean water pipe connecting pipe 3 is provided with a clean water pipe assembly. Further, the clean water pipe assembly includes a clean water inner sleeve 23 inserted into the inner wall of the clean water pipe connecting pipe 3. The end of the clean water inner sleeve 23 is fixed with a connecting collar 24, and the side of the clean water inner sleeve 23 is fixed with an outer lead pipe 25. One end of the outer lead pipe 25 passes through the protective pipe 4.

[0029] The further advantages of the above-mentioned method are: the inner water supply sleeve 23 is placed inside the main water supply pipe 1, and the water pressure in the main water supply pipe 1 provides squeezing force, thereby avoiding the risk of pipe bursting due to excessive water pressure in the inner water supply sleeve 23. At the same time, with the structural protection of the main water supply pipe 1 and the support of the internal water pressure, the inner water supply sleeve 23 can be protected in the event of a mine collapse, thereby ensuring the daily water supply for trapped personnel and improving the success rate of rescue. If the main water supply pipe 1 ruptures during a mine collapse, the internal water pressure can also provide protection to prevent the main water supply pipe 1 from being completely squeezed and broken. At this time, oxygen can be supplied to the mine through the main water supply pipe 1 to provide oxygen supply for the workers in the mine.

[0030] A protective pipe 4 is fitted at one end of the water purification pipe connecting pipe 3. An extension pipe 5 is provided on the surface of the pipe cut-off end closing cover 2. There are three extension pipes 5. The bottom of the extension pipe 5 is threaded with a docking nut pipe 6. A normal water supply connecting pipe 7 is fitted at one end of the docking nut pipe 6. A branch pipe docking groove 8 is opened on the side of the normal water supply connecting pipe 7. A branch pipe 9 is fixed on the inner wall of the branch pipe docking groove 8. A flow rate regulating motor 10 is fixed at the top of the branch pipe 9. A drive gear 11 is fixed at one end of the flow rate regulating motor 10. A pressure dividing guide plate 12 is meshed on the side of the drive gear 11. The pressure dividing guide plate 12 is inserted into the branch pipe 9. One end of the pressure dividing guide plate 12 is a slope end, and a water inlet groove 16 is opened on the slope end of the pressure dividing guide plate 12. It is worth noting that: the extension pipe 5 can be connected to the normal water supply connector 7 by rotating the docking nut pipe 6. The pipe cut-off end closing cap 2 can serve as the closing cap for the cut-off end of the main pipe 1. Firstly, it can divide the original main pipe 1 into multiple sections. With the normal water supply connector 7 serving as the connection point between the main pipe 1 and the branch pipe 9, the instantaneous water pressure in the normal water supply connector 7 can be reduced when the branch pipe 9 diverts water. By using the pipe cut-off end closing cap 2 as the main pressure-bearing surface, the main pipe 1 can be divided into sections to bear water pressure, thus reducing the pressure on the main pipe at deep wells. The pressure value of pipe 1 is reduced to decrease the risk of pipe burst. The flow rate regulating motor 10 drives the drive gear 11 connected to one end to rotate, which can move the connected pressure-dividing guide plate 12 to increase the water flow contact surface with the water in the normal water supply connection pipe 7 to regulate the water flow. The branch pipe 9 connected to the outlet pipe 13 serves as a water pressure regulating device at the cut-off end of the main pipe 1. It can supply water to the water storage and pressure stabilizing tank 28 in real time according to the water pressure in the branch pipe 9, or supplement water from the main pipe 1 in the water storage and pressure stabilizing tank 28 to stabilize the water pressure in the branch pipe 9 at the cut-off end of the main pipe 1.

[0031] The main and branch pipeline balancing assembly includes an outlet pipe 13, one end of which is inserted into the end of one of the branch pipes 9. A water pressure regulating ball 14 is inserted inside the outlet pipe. An impact groove 15 is provided at the diagonal part of the water pressure regulating ball 14. A reset assembly is provided at the top of the water pressure regulating ball 14. Further, the reset assembly includes a vertical anchor 26 fixed to the top of the water pressure regulating ball 14. One end of the vertical anchor 26 passes through the outlet pipe 13, and the top of the vertical anchor 26 is connected to the outlet pipe 13 through a reset coil spring 27.

[0032] The further advantage of the above is that the impact groove 15 can serve as the driving force for the water pressure regulating ball 14 to regulate the water pressure of the water storage and stabilizing tank 28 and the main pipe 1. When the water pressure at the main pipe 1 increases, the impact groove 15 of the water pressure regulating ball 14 near the main pipe 1 is driven by pressure to rotate the water pressure regulating ball 14, connecting the water storage and stabilizing tank 28 with the outlet pipe 13 to receive water flow. Conversely, it replenishes the water pressure in the outlet pipe 13 to maintain the water pressure in the main pipe 1. The reset coil spring 27 can drive the water pressure regulating ball 14 to rotate and close the outlet pipe 13 when the water pressure of the water storage and stabilizing tank 28 and the main pipe 1 are balanced.

[0033] When using this invention, the original main pipe 1 is cut off, the fastening buckle 17 is put on the side of the cut end of the main pipe 1, the inner water purification sleeve 23 is inserted into the water purification pipe connecting pipe 3, and connected to the water purification pipe through the connecting sleeve 24. The outer lead pipe 25 is inserted into the protective pipe 4 and connected to the inner water purification sleeve 23, and used as a water purification diversion pipe. Then, connect the pipe cut-off end closing cover 2 to the cut-off end of the main pipe 1, and put the tension buckle 20 into the slot on the outside of the fastening ring 17. Rotate the fastening nuts 19 at both ends of the connecting bolt 18 to fix the fastening ring 17 on the main pipe 1. Rotate the adjusting bolt 21 and the docking nut tube 6 to tightly close the pipe cut-off end closing cover 2 with the cut-off end of the main pipe 1. Connect the outlet pipe 13 to one of the branch pipes 9, and connect the other two to the external water supply pipes for normal water supply. The flow rate regulating motor 10 drives the pressure dividing guide plate 12 to move through the drive gear 11, and a fixed water flow rate can be set as needed; When the water pressure at the normal water supply connection 7 is too high, the impact groove 15 of the water pressure regulating ball 14 near the main pipe 1 is pressurized and drives the water pressure regulating ball 14 to rotate, so that the normal water supply connection 7 is connected to the water storage and pressure stabilizing tank 28 through the outlet pipe 13, and water is supplied to the water storage and pressure stabilizing tank 28 to reduce the water pressure in the main pipe 1. Conversely, when the water pressure at the normal water supply connection 7 is too low, the water storage and pressure stabilizing tank 28 can supply water to the main pipe 1 to increase the pressure and ensure the water pressure in the normal water supply connection 7 is stable.

[0034] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A coal mine water supply equipment, comprising a tributary pressure stabilizing component, a main branch pipeline balancing component, a main pipeline pressure distribution modification component, and a main pipeline (1), characterized in that: The main pipeline pressure-dividing modification component includes a fastening component located on the side of the main pipeline (1). A pipeline tensioning component is located on the side of the fastening component. One end of the pipeline tensioning component has a pipeline cut-off end closing cap (2). A water purification pipeline connecting pipe (3) is located in the middle of the pipeline cut-off end closing cap (2). A water purification pipeline component is located inside the water purification pipeline connecting pipe (3). A protective pipeline (4) is fitted onto one end of the water purification pipeline connecting pipe (3). An extension pipe (5) is located on the surface of the pipeline cut-off end closing cap (2), and there are three extension pipes (5). The bottom is threaded with a connecting nut tube (6), one end of which is fitted with a normal water supply connecting tube (7). The side of the normal water supply connecting tube (7) is provided with a branch pipe connecting groove (8). A branch pipe (9) is fixed on the inner wall of the branch pipe connecting groove (8). A flow rate regulating motor (10) is fixed at the top of the branch pipe (9). A drive gear (11) is fixed at one end of the flow rate regulating motor (10). A pressure dividing guide plate (12) is meshed on the side of the drive gear (11). The pressure dividing guide plate (12) is inserted into the branch pipe (9). The main branch pipeline balancing assembly includes an outlet pipe (13), one end of which is inserted into the end of one of the branch pipes (9). A water pressure regulating ball (14) is inserted inside the outlet pipe. An impact groove (15) is provided at the diagonal of the water pressure regulating ball (14). A reset assembly is provided at the top of the water pressure regulating ball (14).

2. The coal mine water supply equipment according to claim 1, characterized in that, The main pipeline pressure reduction modification component is located at the cut-off end of the main pipeline (1), and the main pipeline pressure reduction modification component is connected to the branch pressure stabilization component through the main branch pipeline balancing component.

3. The coal mine water supply equipment according to claim 1, characterized in that, One end of the pressure-distributing guide plate (12) is a slope end, and a water-guiding groove (16) is provided on the slope end of the pressure-distributing guide plate (12).

4. A coal mine water supply equipment according to claim 1, characterized in that, The fastening assembly includes a fastening ring (17) sleeved on the side of the main pipe (1), with a connecting bolt (18) inserted into the inner wall of the fastening ring (17), and fastening nuts (19) connected to both ends of the connecting bolt (18) by threaded grooves.

5. A coal mine water supply equipment according to claim 4, characterized in that, The pipe tensioning assembly includes an inclined groove on the side of the fastening buckle (17), a tensioning buckle (20) is inserted into the inner wall of the inclined groove, an adjusting bolt (21) is inserted into one end of the tensioning buckle (20), a flip-up buckle (22) is threaded to one end of the adjusting bolt (21), and one end of the flip-up buckle (22) is hinged to the outside of the pipe cut-off end closing cover (2) by a shaft.

6. A coal mine water supply equipment according to claim 1, characterized in that, The water purification pipe assembly includes a water purification inner sleeve (23) inserted into the inner wall of the water purification pipe connecting pipe (3), a connecting collar (24) is fixed at the end of the water purification inner sleeve (23), an outer lead pipe (25) is fixed on the side of the water purification inner sleeve (23), and one end of the outer lead pipe (25) passes through the protective pipe (4).

7. A coal mine water supply equipment according to claim 1, characterized in that, The reset assembly includes a vertical anchor (26) fixed to the top of the water pressure regulating ball (14), one end of the vertical anchor (26) passes through the outlet pipe (13), and the top of the vertical anchor (26) is connected to the outlet pipe (13) through a reset coil spring (27).

8. A coal mine water supply equipment according to claim 1, characterized in that, The tributary pressure stabilizing assembly includes a water storage pressure stabilizing tank (28) fixed to one end of the outlet pipe (13). A vertical sleeve (29) is fixed to the top of the water storage pressure stabilizing tank (28). A pressure boosting spring (30) is fixed inside the vertical sleeve (29). A piston rod (31) is fixed to the bottom of the pressure boosting spring (30). A tank cover plate (32) is fixed to the bottom of the piston rod (31). The bottom of the tank cover plate (32) is inserted into the water storage pressure stabilizing tank (28).

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