Anti-blocking drainage device for coal mine water prevention and control

Abstract

This utility model discloses a clog-resistant drainage device for coal mine water control, comprising a connecting rod, a crankshaft, and a filter screen. The device has a central pipe with an inlet branch pipe connected to its end. A circular mounting cavity is provided on the central pipe, within which a water wheel is rotatably connected. A filter screen is slidably connected to the inner side of the inlet branch pipe, with plugs fixedly connected to both ends. A connecting rod is hinged to the plug near the circular mounting cavity. A crankshaft is fixedly connected to the central axis of the water wheel corresponding to the connecting rod. One end of the connecting rod is rotatably connected to the eccentric part of the crankshaft. The inlet water flow drives the water wheel to rotate, thereby rotating the crankshaft. The crankshaft pulls the plugs via the connecting rod, causing the filter screen to slide back and forth within the inlet branch pipe. The edge of the inlet branch pipe cleans the outer edge of the filter screen, preventing impurities from adsorbing and causing clogging.

Description

Technical Field

[0001] This utility model relates to the field of coal mine drainage technology, specifically a drainage device for preventing blockages and controlling water in coal mines. Background Technology

[0002] Coal mine water control refers to the removal of groundwater and surface water that enters the mine during the construction and production process. It is one of the important means to overcome water hazards. In the absence of a thorough drainage of water-bearing deposits, it is necessary to rely on drainage to create a good working environment for mining operations and the health and safety of workers, so as to ensure the smooth progress of production.

[0003] A search revealed a patent document with publication number CN 221568592 U, which discloses a clog-resistant drainage device for coal mine water control. This device uses a water pump to draw water out, and during pumping, it filters the water through a filter to prevent large particles from being sucked into the pump. However, during the pumping process, the filter surface absorbs a significant amount of impurities, easily causing clogging of the filter holes. Therefore, a new clog-resistant drainage device for coal mine water control is proposed to optimize the aforementioned prior art. Utility Model Content

[0004] The purpose of this utility model is to provide a drainage device for preventing blockages in coal mines to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drainage device for preventing blockages in coal mines includes a water pump. The water pump has a first connecting pipe fixedly connected to its inlet end, and an intermediate pipe fixedly connected to the end of the first connecting pipe. The end of the intermediate pipe is closed. An inlet branch pipe communicating with the end of the intermediate pipe is connected to the side of the intermediate pipe. The intermediate pipe has a circular mounting cavity. A water wheel is rotatably connected inside the circular mounting cavity. A filter screen pipe adapted to the filter screen pipe is slidably connected to the inner side of the inlet branch pipe. Both ends of the filter screen pipe are fixedly connected to plugs. A connecting rod is hinged to the plug near the circular mounting cavity. A crankshaft is fixedly connected to the central shaft of the water wheel corresponding to the connecting rod. One end of the connecting rod is rotatably connected to the eccentric part of the crankshaft.

[0007] As a further embodiment of this utility model: two water inlet branch pipes are provided, and the two water inlet branch pipes are symmetrically and fixedly connected to both sides of the end of the middle pipe.

[0008] As a further improvement of this utility model: U-shaped frames are fixedly connected to both sides of the circular mounting cavity corresponding to the crankshaft, and one end of the crankshaft is rotatably connected to the U-shaped frame.

[0009] As a further embodiment of this utility model: the outlet end of the water pump is fixedly connected to a second connecting pipe, and a filter chamber is fixedly connected inside the second connecting pipe. The filter chamber is provided with a filter screen plate, and the filter chamber and the water pump are fixedly connected to the base plate together.

[0010] As a further improvement of this utility model: the second connecting pipe is fixedly connected to both sides of the filter chamber with a three-way regulating valve, and a third connecting pipe is fixedly connected between the two three-way regulating valves.

[0011] As a further improvement of this utility model, a drain valve is fixedly connected to the bottom of the filter chamber.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model drives the water wheel to rotate through the water inlet flow, which in turn drives the crankshaft to rotate. The crankshaft pulls the blockage through the connecting rod, which in turn drives the filter screen to slide back and forth in the water inlet branch pipe. The outer edge of the filter screen is cleaned by the edge of the water inlet branch pipe, avoiding the situation where impurities are adsorbed and cause blockage.

[0014] 2. This utility model uses a three-way regulating valve in conjunction with a third connecting pipe to switch the water flow and drains water through a drain valve, thereby allowing the filter screen to be reverse-washed and drained, thus achieving the effect of cleaning the filter screen. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a drainage device for preventing blockages in coal mines.

[0016] Figure 2 This is a partial three-dimensional structural view of a drainage device for preventing blockages in coal mines.

[0017] Figure 3 This is a partial structural cross-sectional view of a drainage device for preventing blockages in coal mines.

[0018] In the diagram: 1. Water pump; 2. First connecting pipe; 3. Base plate; 4. Intermediate pipe; 5. Inlet branch pipe; 6. Circular mounting cavity; 7. Water wheel; 8. Filter screen pipe; 9. Plug; 10. Connecting rod; 11. Crankshaft; 12. U-shaped frame; 13. Second connecting pipe; 14. Filter chamber; 15. Filter screen plate; 16. Three-way regulating valve; 17. Third connecting pipe; 18. Drain valve. Detailed Implementation

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

[0020] Please see Figures 1-3 In this embodiment of the utility model, a drainage device for preventing blockage in coal mines includes a water pump 1. The water pump 1 has a first connecting pipe 2 fixedly connected to its inlet end. The first connecting pipe 2 has an intermediate pipe 4 fixedly connected to its end. The end of the intermediate pipe 4 is closed. The side of the intermediate pipe 4 is connected to an inlet branch pipe 5 that communicates with its end. The intermediate pipe 4 has a circular mounting cavity 6. A water wheel 7 is rotatably connected inside the circular mounting cavity 6. A filter screen pipe 8 that is compatible with the filter screen pipe 5 is slidably connected to the inner side of the inlet branch pipe 5. Both ends of the filter screen pipe 8 are fixedly connected to a plug 9. A connecting rod 10 is hinged to the plug 9 near the circular mounting cavity 6. A crankshaft 11 is fixedly connected to the central shaft of the water wheel 7 corresponding to the connecting rod 10. One end of the connecting rod 10 is rotatably connected to the eccentric part of the crankshaft 11.

[0021] The water inlet flows to drive the water wheel 7 to rotate, which in turn drives the crankshaft 11 to rotate. The crankshaft 11 pulls the plug 9 through the connecting rod 10, which in turn drives the filter screen tube 8 to slide back and forth in the water inlet branch pipe 5. The outer edge of the filter screen tube 8 is cleaned by the edge of the water inlet branch pipe 5, so as to avoid the adsorption of impurities and blockage.

[0022] There are two water inlet branch pipes 5, which are symmetrically and fixedly connected to the two ends of the middle pipe 4.

[0023] U-shaped brackets 12 are fixedly connected to both sides of the circular mounting cavity 6 corresponding to the crankshaft 11, and one end of the crankshaft 11 is rotatably connected to the U-shaped bracket 12.

[0024] The design of the U-shaped bracket 12 increases the stability of crankshaft 11 rotation.

[0025] The outlet end of the water pump 1 is fixedly connected to a second connecting pipe 13, and a filter chamber 14 is fixedly connected inside the second connecting pipe 13. The filter chamber 14 is provided with a filter screen plate 15. The filter chamber 14 and the water pump 1 are fixedly connected to the base plate 3.

[0026] A filter chamber 14 and a filter screen 15 are installed on the second connecting pipe 13 to filter the water and improve the cleanliness of the water at the outlet.

[0027] The second connecting pipe 13 is fixedly connected to two sides of the filter chamber 14 with a three-way regulating valve 16, and a third connecting pipe 17 is fixedly connected between the two three-way regulating valves 16.

[0028] A drain valve 18 is fixedly connected to the bottom of the filter chamber 14.

[0029] The water flow is switched by using the three-way regulating valve 16 in conjunction with the third connecting pipe 17, and the water is drained through the drain valve 18, so that the filter screen 15 can be backwashed and the sewage discharged, thereby achieving the effect of cleaning the filter screen 15.

[0030] The working principle of this utility model is as follows:

[0031] In use, the base plate 3 is placed in the location requiring drainage within the coal mine. The tail end of the first connecting pipe 2 is submerged in water, and the water pump 1 is started to draw water. The water flows through the filter screen pipe 8 into the inlet branch pipe 5, and then into the intermediate pipe 4. It is then drawn out by the water pump 1 through the first connecting pipe 2 and discharged through the second connecting pipe 13. During the discharge process, the water flows through the filter chamber 14 and is filtered by the filter screen plate 15. As the water flows in the intermediate pipe 4, the water flow drives the water wheel 7 to rotate, which in turn drives the crankshaft 11 to rotate. The crankshaft 11 pulls the sealing block 9 through the connecting rod 10, causing the filter screen pipe 8 to slide within the inlet branch pipe 5. The outer wall of the filter screen pipe 8 is cleaned through the edge of the inlet branch pipe 5. After use, the water pump 1 continues to draw water, and the water flow is switched through the three-way regulating valve 16 in conjunction with the third connecting pipe 17. The water is drained through the drain valve 18, which allows for reverse rinsing of the filter screen plate 15 and discharge of waste, thus achieving the effect of cleaning the filter screen plate 15.

[0032] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A drainage device for preventing blockages in coal mines, comprising a water pump (1), characterized in that: The water pump (1) is fixedly connected to the inlet end of a first connecting pipe (2), and the end of the first connecting pipe (2) is fixedly connected to an intermediate pipe (4). The end of the intermediate pipe (4) is closed. The side of the intermediate pipe (4) is connected to an inlet branch pipe (5) that communicates with its end. The intermediate pipe (4) is provided with a circular mounting cavity (6). A water wheel (7) is rotatably connected inside the circular mounting cavity (6). A filter screen pipe (8) that is compatible with it is slidably connected to the inner side of the inlet branch pipe (5). Both ends of the filter screen pipe (8) are fixedly connected to plugs (9). A connecting rod (10) is hinged to the plug (9) near the circular mounting cavity (6). The central axis of the water wheel (7) is fixedly connected to a crankshaft (11) corresponding to the connecting rod (10). One end of the connecting rod (10) is rotatably connected to the eccentric part of the crankshaft (11).

2. The anti-clogging drainage device for coal mine water control according to claim 1, characterized in that: There are two water inlet branch pipes (5), and the two water inlet branch pipes (5) are symmetrically fixedly connected to both sides of the end of the middle pipe (4).

3. A drainage device for preventing blockages in coal mines according to claim 1, characterized in that: On both sides of the circular mounting cavity (6), a U-shaped frame (12) is fixedly connected to the crankshaft (11), and one end of the crankshaft (11) is rotatably connected to the U-shaped frame (12).

4. A drainage device for preventing blockages in coal mines according to claim 1, characterized in that: The outlet end of the water pump (1) is fixedly connected to a second connecting pipe (13), and a filter chamber (14) is fixedly connected inside the second connecting pipe (13). A filter screen plate (15) is provided inside the filter chamber (14). The filter chamber (14) and the water pump (1) are fixedly connected to the base plate (3).

5. A drainage device for preventing blockages in coal mines according to claim 4, characterized in that: The second connecting pipe (13) is fixedly connected to two sides of the filter chamber (14) with a three-way regulating valve (16), and a third connecting pipe (17) is fixedly connected between the two three-way regulating valves (16).

6. A drainage device for preventing blockages in coal mines according to claim 4, characterized in that: A drain valve (18) is fixedly connected to the bottom of the filter chamber (14).

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