An unattended pumping device for use in a mine

Abstract

This utility model discloses an unattended underground water pumping device for mines, including an underground mounting base. A water pump device and a support column are mounted on the top of the mounting base. A magnetic coupler is slidably fitted onto the outside of the support column, and a float device extending to the bottom of the mounting base is provided at the bottom of the magnetic coupler. A water pump control circuit is installed inside the support column, and several spring-loaded magnetic switches are connected in parallel on the water pump control circuit, with different spring-loaded magnetic switches located at different heights underground. The water pump control circuit connects the water pump device to an external controller. This utility model can adapt to fluctuations in the underground water level and maintain continuous pumping of underground water, realizing unattended underground water pumping operations.

Description

Technical Field

[0001] This utility model belongs to the technical field of underground water pumping equipment, specifically relating to an unattended underground water pumping device for mines. Background Technology

[0002] As mining depths increase, the impact of water accumulation and inrush on mines intensifies. Water hazards not only threaten mine safety and production but can also impact the surrounding environment. Timely drainage of underground water accumulation and inrush is a pressing issue currently facing mines.

[0003] When the inflow of water underground is large, the water level in the mine rises rapidly, threatening the lives of underground workers. Large amounts of water accumulation or inflow in the mine pit can also corrode and damage mine equipment, especially electrical equipment, increasing maintenance and replacement costs. Simultaneously, water accumulation or inflow in the mine pit can soften the surrounding rock, reduce the stability of the roof, floor, and sidewalls, increase the difficulty of support and tunneling, and thus affect normal mine production.

[0004] In existing technologies, to pump water from underground wells, a water pump is installed underground, and a water level sensor is placed at a predetermined warning water level. When the water level submerges the water level sensor, it sends a signal to an external controller, which then controls the water pump to start operating and pump the water from the well. However, in practical applications, due to the complex underground environment and the volatility of the water flow, the water level sensor may trigger the pump to operate when the water level rises and stop when the water level falls. This results in frequent pump starts and stops due to water level fluctuations, affecting the normal operation of the underground water pumping operation and also shortening the pump's service life.

[0005] Therefore, in view of the shortcomings of existing underground water pumping devices that cannot adapt well to fluctuations in underground water levels, this utility model discloses an unattended underground water pumping device for mines. Utility Model Content

[0006] This utility model discloses an unattended underground water pumping device for mines, which can adapt to the fluctuation of underground water level and keep the water pump continuously pumping water into the mine, realizing unattended underground water pumping operation.

[0007] This utility model is achieved through the following technical solution:

[0008] An unattended underground water pumping device for mines includes an underground mounting base. A water pump device and a support column are installed on the top of the mounting base. A magnetic coupler is slidably fitted on the outside of the support column. A float device extending to the bottom of the magnetic coupler is installed below the mounting base. A water pump control circuit is installed inside the support column. Several spring magnetic switches are connected in parallel on the water pump control circuit, and different spring magnetic switches are located at different heights underground. The water pump control circuit connects the water pump device to an external controller.

[0009] A downhole mounting base is fixedly installed at a predetermined position in the well. The water pump unit and support column are fixedly mounted on the mounting base. A magnetic coupler is slidably mounted on the outside of the support column, with a float device at the bottom of the magnetic coupler in contact with the water surface in the well. When the water level fluctuates, the float device drives the magnetic coupler to slide along the support column. When the magnetic coupler slides to the position of a spring-magnetic switch corresponding to a different height, the magnetic field causes the corresponding spring-magnetic switch to engage, thereby connecting the water pump control circuit inside the support column. The water pump unit can then be controlled by an external controller to start pumping. Furthermore, several spring-magnetic switches are connected in parallel at different heights inside the support column. These switches cover a preset water level fluctuation range, ensuring that as long as the water level fluctuates within this range, a spring-magnetic switch will be engaged by the magnetic coupler to connect the water pump control circuit, thus preventing frequent start-stop of the water pump unit due to water level fluctuations. In other words, as long as the downhole water level remains within the preset range, the unattended automatic positioning water pump unit can continuously pump water.

[0010] It should be noted that a water pump control circuit and an external controller are included for the sake of the completeness of the technical solution. However, the water pump control circuit and the external controller are not improvements of this technical solution. Moreover, the water pump control circuit and the external controller also adopt existing technologies. Therefore, the specific structure and operating principle of the water pump control circuit and the external controller will not be described in detail here.

[0011] To better realize this utility model, the magnetic coupler further includes a sliding sleeve, a pressing block, a magnet, and a spring. The magnet is positioned outside the support column corresponding to the position of the spring magnetic switch, and a spring is provided between the magnet and the outer wall of the support column. The sliding sleeve is slidably mounted outside the support column, and a float device is provided at the bottom of the sliding sleeve. A pressing block is provided on the inner wall of the sliding sleeve, and the pressing block presses the magnet as the sliding sleeve slides.

[0012] To better realize this utility model, the outer wall of the support column is provided with an axial groove, the magnet is installed inside the axial groove, and a spring is provided between the magnet and the inside of the axial groove.

[0013] To better realize this utility model, the magnet is further provided with pressure-receiving inclined surfaces at both the upper and lower ends, and the extrusion block is provided with extrusion inclined surfaces at both the upper and lower ends corresponding to the pressure-receiving inclined surfaces.

[0014] To better realize this utility model, the float device further includes a connecting rod and a float body. The top end of the connecting rod is connected to the bottom of the magnetic coupler, and the bottom end of the connecting rod extends to the bottom of the mounting base and is connected to the float body.

[0015] To better realize this utility model, the bottom of the magnetic coupler is further provided with at least three sets of connecting rods evenly distributed along the circumference.

[0016] To better realize this utility model, the water pump device further includes a mining water pump and a water suction hose. The suction end of the mining water pump is provided with a water suction hose, and the mining water pump is connected to the water pump control circuit.

[0017] To better realize this utility model, a filter is further provided at the underwater end of the water pumping hose.

[0018] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0019] (1) This utility model sets up a water pump control circuit inside the support column and sets up several magnetic switches corresponding to different water level heights in parallel in the water pump control circuit. As long as the water level in the well is within the preset fluctuation range, the magnetic coupler will always attract a corresponding magnetic switch, thereby ensuring that the water pump control circuit is in the connected state. Thus, the water pump device can be kept running unattended even when the water level fluctuates.

[0020] (2) This utility model provides a water pump control circuit with a magnetic switch inside the support column and a magnetic coupler that rises and falls with the water level outside the support column. The magnetic coupler drives the magnetic switch to engage or disengage, thus isolating the entire water pump control circuit from the underground environment and ensuring the safety and reliability of the water pump control circuit. Attached Figure Description

[0021] Figure 1 A schematic diagram of an unattended underground pumping unit in a mine.

[0022] Figure 2 This is a schematic diagram of a magnetic coupler.

[0023] Figure 3 for Figure 1 Enlarged view of a portion at point A;

[0024] Figure 4 This is a schematic diagram of the extrusion slope and the pressure slope.

[0025] Wherein: 1-Downhole mounting base; 2-Water pump device; 3-Support column; 4-Magnetic coupler; 5-Float device; 6-Spring magnetic switch; 21-Mining water pump; 22-Water pumping hose; 23-Filter; 41-Sliding sleeve; 42-Extrusion block; 43-Magnet; 44-Spring; 51-Connecting rod; 52-Float body; 100-Pressure inclined surface; 200-Extrusion inclined surface. Detailed Implementation

[0026] Example 1:

[0027] This embodiment describes an unattended underground pumping device for mines, such as... Figures 1-3 As shown, the system includes a downhole mounting base 1. A water pump device 2 and a support column 3 are mounted on the top of the downhole mounting base 1. A magnetic coupler 4 is slidably fitted on the outside of the support column 3. A float device 5 extending to the bottom of the magnetic coupler 4 is provided. A water pump control circuit is provided inside the support column 3. Several spring magnetic switches 6 are connected in parallel on the water pump control circuit, and different spring magnetic switches 6 are located at different heights downhole. The water pump control circuit connects the water pump device 2 to an external controller.

[0028] The downhole mounting base 1 is supported by a stainless steel plate with a thickness of 5mm or more, and is fixed in a predetermined position in the well by spurs. A support column 3 extending upwards is located at the top center of the mounting base 1. A water pump device 2 is installed on one side of the support column 3, and the water pump device 2 is connected to the water pump control circuit inside the support column 3. A magnetic coupler 4 is slidably fitted on the outside of the support column 3, and slides up and down along the support column 3 under the action of a float device 5 at its bottom. Three sets of spring magnetic switches 6 at different heights are connected in parallel on the water pump control circuit inside the support column 3, and the height of the three sets of spring magnetic switches 6 can cover the fluctuation range of ±25mm from the zero water level line. That is, as long as the downhole water level remains within ±25mm of the zero water level line, the magnetic coupler 4 will slide to the corresponding spring magnetic switch 6, thereby causing the branch of the corresponding spring magnetic switch 6 to engage, thus ensuring the water pump control circuit is connected and controlling the water pump device 2 to continue pumping water unattended.

[0029] Example 2:

[0030] This embodiment discloses an unattended underground water pumping device for mines, such as... Figure 2As shown, the magnetic coupler 4 includes a sliding sleeve 41, a pressing block 42, a magnet 43, and a spring 44. The magnet 43 is positioned outside the support column 3 corresponding to the position of the spring magnetic switch 6. A spring 44 is provided between the magnet 43 and the outer wall of the support column 3. The sliding sleeve 41 is slidably sleeved outside the support column 3. A float device 5 is provided at the bottom of the sliding sleeve 43. A pressing block 42 is provided on the inner wall of the sliding sleeve 41. The pressing block 42 presses the magnet 43 as the sliding sleeve 41 slides.

[0031] When the water level fluctuates, the float device 5 causes the sliding sleeve 41 to slide along the support column 3, which in turn causes the squeezing block 42 to squeeze the magnet 43. At this time, the spring 44 is compressed, causing the magnet 43 to move towards the interior of the support column 3. This continues until the magnet 43 attracts the spring magnetic switch 6 inside the support column 3. When the squeezing block 42 stops squeezing the magnet 43, the spring 44 rebounds, causing the magnet 43 to move away from the interior of the support column 3, so that the magnet 43 no longer attracts the spring magnetic switch 6 at the corresponding position.

[0032] Furthermore, an axial groove 7 is provided on the outer wall of the support column 3, and the magnet 43 is installed inside the axial groove 7. A spring 44 is provided between the magnet 43 and the interior of the axial groove 7. One end of the magnet 43 near the pressing block 42 extends to the outside of the axial groove 7 so that the pressing block 42 can press the magnet 43.

[0033] Furthermore, such as Figure 4 As shown, both the upper and lower ends of the magnet 43 are provided with pressure-receiving inclined surfaces 100, and both the upper and lower ends of the pressing block 42 are provided with pressing inclined surfaces 200 corresponding to the pressure-receiving inclined surfaces 100. When the pressing inclined surfaces 200 move closer to the pressure-receiving inclined surfaces 100 to press the pressure-receiving inclined surfaces 100, the magnet 43 moves towards the spring magnetic switch 6 under pressure, causing the spring magnetic switch 6 to engage. When the pressing inclined surfaces 200 move away from the pressure-receiving inclined surfaces 100 and no longer press the pressure-receiving inclined surfaces 100, the magnet 43 moves away from the spring magnetic switch 6 under the elastic force of the spring 44, causing the spring magnetic switch 6 to disengage.

[0034] The other parts of this embodiment are the same as those in Embodiment 1, so they will not be described again.

[0035] Example 3:

[0036] This embodiment discloses an unattended underground water pumping device for mines, which is further optimized based on the above-described embodiment 1 or 2, such as... Figure 2 As shown, the float device 5 includes a connecting rod 51 and a float body 52. ​​The top end of the connecting rod 51 is connected to the bottom of the magnetic coupler 4, and the bottom end of the connecting rod 51 extends to the bottom of the mounting base 1 and is connected to the float body 52.

[0037] At least three sets of connecting lugs are evenly distributed circumferentially at the bottom of the sliding sleeve 41. The top end of the connecting rod 51 is connected to the connecting hole on the connecting lug via a connecting bolt, and the bottom end of the connecting rod 51 is sleeved to the outside of the float body 52 via an adapter sleeve. The float body 52 is subjected to the buoyancy of the water, and the sliding sleeve 41 is driven to slide along the support column 3 via the connecting rod 51.

[0038] Furthermore, at least three sets of connecting rods 51 are evenly distributed around the bottom of the magnetic coupler 4, and the three sets of float bodies 52 at the bottom of the three sets of connecting rods 51 form a triangular area on the horizontal plane, thereby ensuring the sliding stability of the sliding sleeve 41.

[0039] The other parts of this embodiment are the same as those in Embodiment 1 or 2 above, so they will not be described again.

[0040] Example 4:

[0041] This embodiment discloses an unattended underground water pumping device for mines, which is further optimized based on any one of embodiments 1-3 above, such as... Figure 2 As shown, the water pump device 2 includes a mining water pump 21 and a water suction hose 22. The water suction end of the mining water pump 21 is equipped with the water suction hose 22, and the mining water pump 21 is connected to the water pump control circuit. The underground mounting base 1 is provided with a through hole for the water suction hose 22 to pass through. One end of the water suction hose 22 is connected to the mining water pump 21 through a quick-connect coupling. The underwater end of the water suction hose 22 is equipped with a filter 23, which can filter out large particles of silt and other impurities in the water, thereby preventing the water suction hose 22 from becoming clogged.

[0042] The other parts of this embodiment are the same as any one of the embodiments 1-3 above, so they will not be described again.

[0043] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A mine underground unattended pumping device, comprising an underground mounting base (1), characterized in that, The top of the downhole mounting base (1) is provided with a water pump device (2) and a support column (3). A magnetic coupler (4) is slidably sleeved on the outside of the support column (3). A float device (5) extending to the bottom of the magnetic coupler (4) is provided. A water pump control circuit is provided inside the support column (3). Several spring magnetic switches (6) are connected in parallel on the water pump control circuit. Different spring magnetic switches (6) are located at different heights downhole. The water pump control circuit connects the water pump device (2) to the external controller.

2. The unmanned underground pumping device for mines according to claim 1, characterized in that, The magnetic coupler (4) includes a sliding sleeve (41), a pressing block (42), a magnet (43), and a spring (44). The magnet (43) is positioned outside the support column (3) corresponding to the position of the spring magnetic switch (6). A spring (44) is provided between the magnet (43) and the outer wall of the support column (3). The sliding sleeve (41) is slidably mounted outside the support column (3). A float device (5) is provided at the bottom of the sliding sleeve (43). A pressing block (42) is provided on the inner wall of the sliding sleeve (41). The pressing block (42) presses the magnet (43) as the sliding sleeve (41) slides.

3. The unmanned underground pumping device for mines according to claim 2, characterized in that, An axial groove (7) is provided on the outer wall of the support column (3), and the magnet (43) is installed inside the axial groove (7). A spring (44) is provided between the magnet (43) and the interior of the axial groove (7).

4. The unattended underground pumping device for mines according to claim 3, characterized in that, The magnet (43) has a pressure-receiving inclined surface (100) at both the upper and lower ends, and the extrusion block (42) has an extrusion inclined surface (200) at both the upper and lower ends corresponding to the pressure-receiving inclined surface (100).

5. A mine underground unattended pumping device according to any one of claims 1-4, characterized in that, The float device (5) includes a connecting rod (51) and a float body (52). The top end of the connecting rod (51) is connected to the bottom of the magnetic coupler (4), and the bottom end of the connecting rod (51) extends to the bottom of the mounting base (1) and is connected to the float body (52).

6. The unattended underground pumping device for mines according to claim 5, characterized in that, At least three sets of connecting rods (51) are evenly distributed around the bottom of the magnetic coupler (4).

7. A mine underground unmanned pumping device according to any one of claims 1-4, characterized in that, The water pump device (2) includes a mining water pump (21) and a water suction hose (22). The suction end of the mining water pump (21) is provided with a water suction hose (22). The mining water pump (21) is connected to the water pump control circuit.

8. The unattended underground pumping device for mines according to claim 7, characterized in that, The underwater end of the pumping hose (22) is equipped with a filter (23).

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