Underground coal mine water prevention and control early warning device

Abstract

The utility model relates to the technical field of water prevention early warning devices, and discloses a coal mine underground water prevention early warning device which comprises a base and a measuring box, one end of a transverse plate is in threaded connection with a threaded rod, the top of the threaded rod is fixedly connected with a hand wheel, the top of the measuring box is fixedly connected with an alarm device, and the interior of an inner cavity is movably connected with a floating plate. One end of the floating plate is fixedly connected with a contact block, one side of the inner wall of the inner cavity is fixedly connected with a contact strip, one side of the contact block is in contact connection with the contact strip, the hand wheel is rotated to drive the threaded rod to rotate, and the threaded rod drives the transverse plate and the measuring box to move upwards, so that the measuring box is located at a proper height; water enters the inner cavity through the water inlet groove, the water level rises, the floating plate moves upwards through buoyancy of the water, the contact block moves upwards along one side of the contact strip, and when one side of the contact block makes contact with the water level warning height of the contact strip, the alarm device gives an alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of water prevention and control early warning devices, in particular to an underground water prevention and control early warning device for a coal mine. Background Art

[0002] Coal mines are areas where humans exploit coal resources in coal-rich mining areas. They are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, people generally choose to dig tunnels underground to mine coal. This is an underground coal mine. Coal mining has always been the top priority in energy mining. The consumption and use of coal mine energy occupies a large part of people's lives. Coal mine energy is an energy source that is difficult to lack at present. However, in the process of coal mining, accidents such as water seepage in the mine often occur due to various reasons, such as weather, environment, geographical factors, etc., which seriously threaten the lives and safety of the workers. Therefore, underground water prevention and control early warning devices are often used in coal mining.

[0003] A Chinese utility model patent with announcement number CN210530926U discloses an underground water prevention and control early warning device for coal mines, which belongs to the technical field of water prevention and control early warning devices. The rotary shaft is driven to rotate by a knob, which in turn drives the driving gear to rotate, and then engages the driven gear to drive the screw to rotate, and then drills the ground through the drill bit to fix the device. At the same time, the rotation of the screw causes the third sleeve to move upward, and the distance between the first copper plate and the bottom of the third sleeve can be adjusted according to the water level, which is convenient for use.

[0004] With regard to the existing related technologies, the inventors believe that the following defects exist: the existing technologies drive the drill bit to drill and fix the ground by turning a knob. When the terrain in the area where the device is fixed is too low, the location cannot represent the average water level height underground in the coal mine, resulting in inaccurate detection results. Utility Model Content

[0005] In order to solve the technical problem that when the terrain of the area where the existing device is fixed is too low, the location cannot represent the average water level height underground in the coal mine, thus causing inaccurate detection results, the utility model provides an underground coal mine water prevention and control early warning device.

[0006] The utility model is implemented by the following technical scheme: an underground water prevention and control early warning device for a coal mine, comprising a base and a measuring box, a horizontal plate is arranged on the top of the base, one end of the horizontal plate is threadedly connected to a threaded rod, the top of the threaded rod is fixedly connected to a hand wheel, the measuring box is fixedly connected to the top of the horizontal plate, the top of the measuring box is fixedly connected to an alarm device, a water inlet trough is provided on one side of the bottom of the measuring box, an inner cavity is machined inside the measuring box, a floating plate is movably connected inside the inner cavity, one end of the floating plate is fixedly connected to a contact block, one side of the inner wall of the inner cavity is fixedly connected to a contact strip, one side of the contact block is contact-connected to the contact strip, and one end of the top of the base is fixedly connected to a horizontal device.

[0007] Preferably, one end of the horizontal plate is movably connected to a round rod, the bottom of the round rod is fixedly connected to the top of the base, and the top of the round rod is fixedly connected to a limiting block.

[0008] Preferably, a glass observation port is provided on one side of the measuring box, and the water inlet trough is located at the bottom of the glass observation port.

[0009] Preferably, two limit rods are fixedly connected to the top inner wall of the inner cavity, the bottoms of the two limit rods are fixedly connected to the top of the cross plate, and the inside of the floating plate is movably connected to the outside of the limit rods.

[0010] Preferably, a soil-breaking cone is threadedly connected to the periphery of the base, and a circular ring is fixedly connected to the top of the soil-breaking cone.

[0011] Preferably, the bottom of the threaded rod is rotatably connected to the inside of the base, and the threaded rod and the round rod are respectively located on both sides of the measuring box.

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

[0013] When the utility model is in use, the threaded rod is driven to rotate by turning the hand wheel, and the threaded rod will drive the horizontal plate to move upward, and the horizontal plate will drive the measuring box to move upward, so that the measuring box is at a suitable height. When water seeps into the coal mine, water will enter the inner cavity through the water inlet trough, and the water level will rise. The floating plate will move upward along the inner cavity through the buoyancy of the water, so that the contact block will move upward along one side of the contact strip. When one side of the contact block contacts the water level warning height of the contact strip, the alarm device will sound an alarm.

[0014] When the utility model is in use, the circular ring is rotated to drive the earth-breaking cone to rotate downward, so that the water inlet trough is drilled into the soil, thereby fixing the base under the coal mine, and adjusting the horizontal position of the base by arranging the horizontal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure between the base and the measuring box of the utility model;

[0017] Figure 3 This is a schematic diagram of the internal structure of the measuring box of the utility model;

[0018] Figure 4 For the utility model Figure 3 Enlarged schematic diagram of part A in the middle.

[0019] In the figure: 1. base; 2. measuring box; 201. inner cavity; 3. horizontal device; 4. horizontal plate; 5. hand wheel; 6. threaded rod; 7. water inlet trough; 8. floating plate; 9. limit rod; 10. contact strip; 11. contact block; 12. glass observation port; 13. alarm device; 14. round rod; 15. limit block; 16. ring; 17. earth-breaking cone. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] Example 1: Please refer to Figure 1 - Figure 4 , a coal mine underground water prevention and control early warning device of the present embodiment comprises a base 1 and a measuring box 2, a horizontal plate 4 is arranged on the top of the base 1, a threaded rod 6 is threadedly connected to one end of the horizontal plate 4, a hand wheel 5 is fixedly connected to the top of the threaded rod 6, the measuring box 2 is fixedly connected to the top of the horizontal plate 4, an alarm device 13 is fixedly connected to the top of the measuring box 2, a water inlet trough 7 is provided on one side of the bottom of the measuring box 2, an inner cavity 201 is processed inside the measuring box 2, a floating plate 8 is movably connected inside the inner cavity 201, a contact block 11 is fixedly connected to one end of the floating plate 8, a contact strip 10 is fixedly connected to one side of the inner wall of the inner cavity 201, one side of the contact block 11 is contact-connected to the contact strip 10, and a horizontal device 3 is fixedly connected to one end of the top of the base 1;

[0022] Among them, by fixing the base 1 in the coal mine, when the terrain of the area where the base 1 is fixed is too low, the accuracy of the detection result of the measuring box 2 is reduced, so the height of the measuring box 2 needs to be adjusted, and the hand wheel 5 is turned, the hand wheel 5 will drive the threaded rod 6 to rotate, the threaded rod 6 will drive the horizontal plate 4 to move upward, and the horizontal plate 4 will drive the measuring box 2 to move upward, so that the measuring box 2 is at a suitable height;

[0023] When water seeps underground in the coal mine, water will enter the inner cavity 201 through the water inlet trough 7, the water level will rise, the floating plate 8 will move upward due to the buoyancy of the water, the floating plate 8 will move upward along the inner cavity 201, the floating plate 8 will drive the contact block 11 to move upward, the contact block 11 will move upward along one side of the contact strip 10, when one side of the contact block 11 contacts the warning position of the contact strip 10, the alarm device 13 will sound an alarm;

[0024] Further, one end of the horizontal plate 4 is movably connected to a round rod 14, the bottom of the round rod 14 is fixedly connected to the top of the base 1, and the top of the round rod 14 is fixedly connected to a limit block 15. When the hand wheel 5 drives the threaded rod 6 to rotate, the threaded rod 6 will drive the horizontal plate 4 to move upward, and one end of the horizontal plate 4 will move along the outside of the round rod 14. By setting the limit block 15, the limit block 15 will limit the movement of the horizontal plate 4 to prevent the horizontal plate 4 from escaping from the inside of the round rod 14.

[0025] Furthermore, a glass observation port 12 is provided on one side of the measuring box 2, and the water inlet trough 7 is located at the bottom of the glass observation port 12. The height of the floating plate 8 inside the inner cavity 201 can be observed through the glass observation port 12, so as to judge the water level in the coal mine.

[0026] Furthermore, two limit rods 9 are fixedly connected to the inner wall of the top of the inner cavity 201, and the bottoms of the two limit rods 9 are fixedly connected to the top of the horizontal plate 4. The inside of the floating plate 8 is movably connected to the outside of the limit rods 9. When the water level rises, the floating plate 8 driven by the buoyancy of the water will move upward, so that the floating plate 8 moves along the outside of the limit rods 9. By setting the limit rods 9, the floating plate 8 can move up and down smoothly inside the inner cavity 201.

[0027] Furthermore, the base 1 is threadedly connected with a breaking cone 17 on all sides, the top of the breaking cone 17 is fixedly connected with a ring 16, the bottom of the threaded rod 6 is rotatably connected to the inside of the base 1, the threaded rod 6 and the round rod 14 are respectively located on both sides of the measuring box 2. When the base 1 is fixed in the coal mine, the ring 16 is rotated, and the ring 16 will drive the breaking cone 17 to rotate downward, so that the water inlet trough 7 is drilled into the soil, thereby fixing the base 1. By providing a horizontal device 3, the horizontal position of the base 1 can be adjusted to avoid the measuring box 2 from tilting and causing inaccurate detection results.

[0028] Working principle: by rotating the circular ring 16, the circular ring 16 will drive the earth-breaking cone 17 to rotate downward, so that the water inlet trough 7 is drilled into the soil, so that the base 1 is fixed underground in the coal mine. By setting the horizontal device 3, the horizontal position of the base 1 is adjusted. When the terrain of the area where the base 1 is fixed is too low, the hand wheel 5 is turned to drive the threaded rod 6 to rotate, and the threaded rod 6 will drive the cross plate 4 to move upward. The cross plate 4 will drive the measuring box 2 to move upward, so that the measuring box 2 is at a suitable height. When water seeps underground in the coal mine, water will enter the inner cavity 201 through the water inlet trough 7, and the water level will rise. The floating plate 8 will move upward along the inner cavity 201 through the buoyancy of the water, so that the contact block 11 will move upward along one side of the contact strip 10. When one side of the contact block 11 contacts the water level warning height of the contact strip 10, the alarm device 13 will sound an alarm.

[0029] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A coal mine underground water prevention and early warning device, comprising a base (1) and a measuring box (2), characterized in that: A horizontal plate (4) is arranged on the top of the base (1), one end of the horizontal plate (4) is threadedly connected to a threaded rod (6), the top of the threaded rod (6) is fixedly connected to a hand wheel (5), the measuring box (2) is fixedly connected to the top of the horizontal plate (4), the top of the measuring box (2) is fixedly connected to an alarm device (13), a water inlet trough (7) is provided on one side of the bottom of the measuring box (2), an inner cavity (201) is machined inside the measuring box (2), a floating plate (8) is movably connected inside the inner cavity (201), one end of the floating plate (8) is fixedly connected to a contact block (11), one side of the inner wall of the inner cavity (201) is fixedly connected to a contact strip (10), one side of the contact block (11) is contact-connected to the contact strip (10), and one end of the top of the base (1) is fixedly connected to a horizontal device (3).

2. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: One end of the horizontal plate (4) is movably connected to a round rod (14), the bottom of the round rod (14) is fixedly connected to the top of the base (1), and the top of the round rod (14) is fixedly connected to a limit block (15).

3. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: A glass observation port (12) is provided on one side of the measurement box (2), and the water inlet tank (7) is located at the bottom of the glass observation port (12).

4. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: Two limiting rods (9) are fixedly connected to the inner wall of the top of the inner cavity (201), the bottoms of the two limiting rods (9) are fixedly connected to the top of the transverse plate (4), and the inside of the floating plate (8) is movably connected to the outside of the limiting rods (9).

5. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: The base (1) is threadedly connected to a soil-breaking cone (17) on all sides, and the top of the soil-breaking cone (17) is fixedly connected to a circular ring (16).

6. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: The bottom of the threaded rod (6) is rotatably connected to the inside of the base (1), and the threaded rod (6) and the round rod (14) are respectively located on two sides of the measuring box (2).

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