Drainage device for preventing and controlling water in coal mine

Abstract

The utility model provides a coal mine water control drainage device which comprises a submersible pump, a semicircular lifting handle is installed on the upper surface of the submersible pump, a cross rod is installed in the lifting handle, a hanging ring is installed on the upper portion of the outer surface of the cross rod, a lifting hook is inserted in the hanging ring, and a stud is installed at one end of the lifting hook. A straight threaded barrel is in threaded connection with the stud, a detachable lower screw is installed at the upper end of the straight threaded barrel, a lower threaded sleeve is in threaded connection with the lower screw, an upper threaded sleeve concentric with the lower threaded sleeve is arranged over the lower threaded sleeve, and an upper screw is in threaded connection with the interior of the upper threaded sleeve. The lower threaded sleeve is fixedly connected with the upper threaded sleeve through two symmetrically-arranged connecting rods, and the upper end of the upper threaded rod is in threaded connection with a hanging plate used for being hung on a coal mine roadway top plate. And when the submersible pump is taken and placed, the submersible pump cannot damage the inner wall of the temporarily excavated water storage pit.

Description

Technical Field

[0001] This utility model is a drainage device for preventing and controlling water in coal mines, belonging to the field of coal mining. Background Technology

[0002] Coal mine water control refers to a series of technical and management measures taken to prevent safety accidents caused by the inflow of groundwater, surface water or other water sources during the mining process. During coal mining, temporary water storage pits need to be excavated in the floor of the coal mine roadway to collect water. Submersible pumps are then placed in the pits, pumping the water flowing into the pits into drainage pipes. Because the production water generated during coal mining carries a significant amount of coal slag during its flow, this slag ends up in the water storage pits. To prevent the submersible pump inlet from being blocked by slag, the pumps need to be periodically removed from the pits to clean the accumulated slag. Currently, when manually removing the pumps, their considerable weight causes sliding friction against the pit walls. The loose walls of the temporary pits further damage the pumps during removal. This process is both laborious and damaging to the temporary water storage pits. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a drainage device for coal mine water control, so as to solve the problems mentioned in the background technology. This utility model makes it convenient to pick up and put down the submersible pump, and the submersible pump will not damage the inner wall of the temporarily excavated water storage pit when picking up and putting down the submersible pump.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution: a drainage device for preventing water in coal mines, comprising a submersible pump, a semi-circular handle installed on the upper surface of the submersible pump, a crossbar installed inside the handle, a lifting ring installed at the upper part of the outer surface of the crossbar, a hook inserted inside the lifting ring, a stud installed at one end of the hook, a straight threaded cylinder threadedly connected to the stud, a detachable lower screw installed at the upper end of the straight threaded cylinder, a lower threaded sleeve threadedly connected to the lower screw, an upper threaded sleeve arranged concentrically above the lower threaded sleeve, the thread direction inside the upper threaded sleeve being opposite to the thread direction inside the lower threaded sleeve, an upper screw threadedly connected to the upper threaded sleeve, the lower threaded sleeve being connected and fixed to the upper threaded sleeve by two symmetrically arranged connecting rods, a hanging plate for suspending on the roof of the coal mine roadway threadedly connected to the upper end of the upper screw, and multiple rope holes for attaching ropes evenly opened on the upper surface of the hanging plate.

[0005] Furthermore, a lower connecting plate is fixedly connected to the upper end of the straight threaded cylinder, and an upper connecting plate is fixedly connected to the lower end of the lower screw. The upper connecting plate is connected to the lower connecting plate by fasteners formed by multiple sets of screws and nuts.

[0006] Furthermore, a top plate is fixedly connected to the upper end of the upper screw, and the top plate is fixedly connected to the hanging plate by multiple screws.

[0007] Furthermore, a handle is installed on the lower outer surface of both connecting rods, the handle is arranged perpendicular to the connecting rod, and the end of the handle away from the connecting rod is machined with a dome.

[0008] Furthermore, the connecting rod and the upper threaded sleeve are integrally formed, and the connecting rod and the lower threaded sleeve are integrally formed.

[0009] Furthermore, a rubber sleeve is fitted onto the upper end of the lower screw, and the upper end of the rubber sleeve is closed.

[0010] Furthermore, two symmetrically arranged through holes are provided on the outer surface of the handle, and the two ends of the crossbar are respectively fixed in the two through holes.

[0011] The beneficial effects of this utility model are:

[0012] 1. Hang the lifting ring on the hook to complete the assembly of the structure formed by the stud, the lifting handle and the crossbar. Adjust the length of the stud in the straight threaded cylinder, thereby changing the height of the stud and the straight threaded cylinder. This facilitates adjusting the distance between the lifting plate and the submersible pump according to the distance between the bottom of the temporary water storage pit excavated on the roof and floor of the coal mine roadway.

[0013] 2. Using ropes, the hoisting plate is suspended on the roof of the coal mine roadway. Then, the submersible pump is lowered into a temporary water storage pit excavated in the floor of the coal mine roadway. The structure formed by the upper threaded sleeve, the lower threaded sleeve, and the two connecting rods is turned to increase or decrease the distance between the upper and lower screws, so that the submersible pump can enter and exit the water storage pit by lifting up and down. This makes it convenient to pick up and put down the submersible pump, and the submersible pump will not damage the inner wall of the temporary water storage pit when picking up and putting down the submersible pump.

[0014] 3. A rubber sleeve is fitted on the upper screw. The rubber sleeve prevents the threads on the ends of the upper and lower screws from being damaged due to friction during contact. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the structure of a drainage device for preventing and controlling water in coal mines according to the present invention;

[0017] Figure 2 This is another perspective view of a drainage device for preventing water in coal mines according to the present invention.

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] In the diagram: 1-Submersible pump, 2-Lifting handle, 3-Stud, 4-Straight threaded cylinder, 5-Lower threaded sleeve, 6-Lower screw, 7-Handle, 8-Connecting rod, 9-Upper threaded sleeve, 10-Lifting plate, 11-Rope hole, 12-Upper screw, 13-Hook, 14-Lifting ring, 15-Horizontal bar, 16-Top plate, 17-Rubber sleeve, 18-Upper connecting plate, 19-Lower connecting plate. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figure 1 and Figure 2 This utility model provides a technical solution: a drainage device for coal mine water control, including a submersible pump 1. A semi-circular handle 2 is installed on the upper surface of the submersible pump 1. A crossbar 15 is installed inside the handle 2. Two symmetrically arranged through holes are opened on the outer surface of the handle 2, so that the two ends of the crossbar 15 are respectively fixed in the two through holes, improving the stability of the connection between the crossbar 15 and the handle 2. A lifting ring 14 is installed at the upper part of the outer surface of the crossbar 15. A hook 13 is inserted into the lifting ring 14. A stud 3 is installed at one end of the hook 13. A straight threaded cylinder 4 is threadedly connected to the stud 3. The lifting ring 14 is hung on the hook 13, completing the assembly of the structure formed by the stud 3, the handle 2 and the crossbar 15. The length of the stud 3 in the straight threaded cylinder 4 is adjusted, thereby changing the height of the stud 3 and the straight threaded cylinder 4. This facilitates the adjustment of the distance between the hanging plate 10 and the submersible pump 1 according to the distance between the bottom of the temporary water storage pit excavated on the roof and floor of the coal mine roadway.

[0022] See Figures 1-3A detachable lower screw rod 6 is installed on the upper end of a straight threaded cylinder 4. A lower connecting plate 19 is fixedly connected to the upper end of the straight threaded cylinder 4, and an upper connecting plate 18 is fixedly connected to the lower end of the lower screw rod 6. The upper connecting plate 18 is connected to the lower connecting plate 19 by fasteners formed by multiple sets of screws and nuts, thus completing the assembly of the straight threaded cylinder 4 and the lower screw rod 6. A lower threaded sleeve 5 is threadedly connected to the upper screw rod 6. An upper threaded sleeve 9 is arranged concentrically above the lower threaded sleeve 5. The thread direction inside the upper threaded sleeve 9 is opposite to the thread direction inside the lower threaded sleeve 5. An upper screw rod 12 is threadedly connected to the upper threaded sleeve 9. The lower threaded sleeve 5 is connected and fixed to the upper threaded sleeve 9 by two symmetrically arranged connecting rods 8. The connecting rods 8, the upper threaded sleeve 9, and the lower threaded sleeve 5 are integrally formed. A hanging plate 10 for suspending on the roof of the coal mine roadway is threadedly connected to the upper end of the upper screw rod 12. A top plate 16 is fixedly attached, and the top plate 16 is connected and fixed to the hanging plate 10 by multiple screws, thus completing the assembly of the upper screw rod 12 and the hanging plate 10. Multiple rope holes 11 for attaching the hoisting rope are evenly opened on the upper surface of the hanging plate 10. Handles 7 are installed on the outer surface of the lower end of the two connecting rods 8. The handles 7 are arranged perpendicular to the connecting rods 8. The end of the handle 7 away from the connecting rods 8 is machined with a dome. The hanging plate 10 is suspended on the roof of the coal mine roadway using the hoisting rope. Then, the submersible pump 1 is lowered into the water storage pit temporarily excavated in the bottom of the coal mine roadway. The structure formed by the upper threaded sleeve 9, the lower threaded sleeve 5 and the two connecting rods 8 is turned by the handle 7, thereby increasing or decreasing the distance between the upper screw rod 12 and the lower screw rod 6, so that the submersible pump 1 can enter and exit the water storage pit by lifting up and down. This makes it convenient to pick up and put down the submersible pump 1, and the submersible pump 1 will not damage the inner wall of the temporarily excavated water storage pit when picking up and putting down the submersible pump 1.

[0023] See Figure 1 and Figure 2 A rubber sleeve 17 is fitted on the upper end of the lower screw 6. The upper end of the rubber sleeve 17 is closed. The rubber sleeve 17 is fitted on the upper screw 12. Under the action of the rubber sleeve 17, the threads on the ends of the upper screw 12 and the lower screw 6 are not damaged due to friction during the contact process between the opposite ends of the upper screw 12 and the lower screw 6.

[0024] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A drainage device for preventing and treating water in a coal mine, comprising a submersible pump (1), characterized in that: The submersible pump (1) is provided with a semicircular handle (2) on the upper surface, a crossbar (15) is installed in the handle (2), a lifting ring (14) is installed on the outer surface of the upper part of the crossbar (15), a lifting hook (13) is inserted in the lifting ring (14), a stud (3) is installed at one end of the lifting hook (13), a straight thread cylinder (4) is threadedly connected on the stud (3), a detachable lower screw rod (6) is installed on the upper end of the straight thread cylinder (4), a lower thread sleeve (5) is threadedly connected on the lower screw rod (6), an upper thread sleeve (9) concentrically arranged with the lower thread sleeve (5) is arranged directly above the lower thread sleeve (5), the thread direction in the upper thread sleeve (9) is opposite to that in the lower thread sleeve (5), an upper screw rod (12) is threadedly connected in the upper thread sleeve (9), the lower thread sleeve (5) is connected and fixed with the upper thread sleeve (9) through two symmetrically arranged connecting rods (8), a hanging plate (10) for suspension on the roof of a coal mine tunnel is threadedly connected on the upper end of the upper screw rod (12), a plurality of rope penetrating holes (11) for tying up a lifting rope are uniformly arranged on the upper surface of the hanging plate (10).

2. The water drainage device for coal mine water prevention and control according to claim 1, characterized in that: The lower end of the lower screw rod (6) is connected and fixed with an upper connecting disc (18), and the upper connecting disc (18) is connected with the lower connecting disc (19) through fasteners formed by a plurality of screws and nuts.

3. The water drainage device for coal mine water prevention and control of claim 1, characterized in that: The upper end of the upper screw rod (12) is connected and fixed with a top disc (16), and the top disc (16) is connected and fixed with the hanging plate (10) through a plurality of screws.

4. The water drainage device for coal mine water prevention and control of claim 1, characterized in that: The lower end of each connecting rod (8) is provided with a handle (7) which is perpendicular to the connecting rod (8), and a dome is formed at the end of the handle (7) away from the connecting rod (8).

5. The water drainage device for coal mine according to claim 1, characterized in that: The connecting rod (8) and the upper thread sleeve (9) are an integral structure, and the connecting rod (8) and the lower thread sleeve (5) are an integral structure.

6. The water drainage device for coal mine water prevention and control of claim 1, characterized in that: A rubber sleeve (17) is sleeved on the upper end of the lower screw rod (6), and the upper end of the rubber sleeve (17) is closed.

7. The water drainage device for coal mine according to claim 1, characterized in that: Two symmetrically arranged through holes are formed in the outer surface of the handle (2), and the two ends of the crossbar (15) are fixed in the two through holes, respectively.

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