Underground coal mine water prevention and control early warning device

Abstract

The utility model relates to the technical field of coal mine water level early warning, in particular to a coal mine underground water prevention and control early warning device. Comprising a threaded cylinder, a driving part and a mounting frame, the mounting frame is in threaded connection with the interior of the threaded cylinder, the driving part is slidably connected to the upper end of the threaded cylinder, the mounting frame comprises a fixing plate, four fixing vertical plates arranged in a cross shape are fixedly connected to the lower side face of the fixing plate, and each fixing vertical plate is provided with a plurality of first mounting holes and second mounting holes. And inductors are mounted in the mounting hole I and the mounting hole II. The installation depth of the threaded cylinder can be controlled according to needs, and the threaded cylinder can adapt to water level monitoring under different conditions; by vertically arranging the multiple sensors, the position of the water level can be monitored in real time, the water level change can be predicted in advance according to the rising or falling change process of the water level, and the early warning function is achieved in advance.

Description

Technical Field

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

[0002] Coal is the most important solid fuel and a kind of combustible organic rock. It is formed by the natural coalification of a long geological period, which is formed by the lush plants growing in a certain geological age, gradually accumulating into thick layers in a suitable geological environment, and buried in the water or mud. Coal mines are areas where humans mine coal resources in coal-rich mining areas. They are reasonable spaces dug by humans when digging coal-rich geological layers. The hydrogeological conditions of coalfields in my country are complex. At present, about 18% of the coal reserves to be mined in my country are threatened by relatively serious water disasters. Prevention and control work is of great importance and urgent practical significance.

[0003] Existing underground water prevention and control early warning devices in coal mines usually use floating blocks. The floating blocks in the device rise to contact a certain structure due to the rising water level, thereby triggering the alarm to sound an alarm. However, there are still certain defects: 1. The detection height cannot be adjusted and cannot be applied to coal mines with different risk levels; 2. When water flows into the device, some slag will be brought in, affecting the accuracy of the device's detection; 3. The water prevention and control early warning device cannot promptly remind people to evacuate in time when water seeps into the mine. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides an underground water prevention and control early warning device for coal mines.

[0005] The utility model provides an underground water prevention and control early warning device for a coal mine, comprising a threaded barrel, a driving member and a mounting frame, wherein a rotating thread is arranged on the outer side of the threaded barrel, a tip is arranged on the lower end of the threaded barrel, the threaded barrel is a hollow structure, a mounting frame is connected to the inner thread of the threaded barrel, and a driving member is slidably connected to the upper end of the threaded barrel, and the mounting frame comprises a fixing plate, the fixing plate is circular, a thread is arranged on the outer side of the fixing plate, a hexagonal groove is arranged at the center of the side surface of the fixing plate, and four fixing vertical plates arranged in a "cross" shape are fixedly connected to the lower side surface of the fixing plate, wherein two fixing vertical plates relatively arranged on the same surface are both vertically uniformly distributed with a plurality of mounting holes II, and the other two fixing vertical plates are both vertically uniformly distributed with a plurality of mounting holes I, the mounting holes I and the mounting holes II are vertically staggered with each other, and sensors are installed in the mounting holes I and the mounting holes II.

[0006] Furthermore, the upper end surface of the threaded barrel is evenly distributed with a plurality of vertically arranged rectangular grooves, the side surfaces of the rectangular grooves close to the center of the threaded barrel are evenly distributed with a plurality of inner through holes vertically, and the side surfaces of the rectangular grooves away from the center of the threaded barrel are evenly distributed with a plurality of outer through holes vertically, and the corresponding outer through holes and inner through holes are coaxially arranged, and both the outer through holes and the inner through holes are provided with filter plates, and the filter plates are evenly distributed with a plurality of filter holes.

[0007] Furthermore, the number of the rectangular slots is four.

[0008] Furthermore, the driving member includes a circular plate, and four vertical bars are evenly distributed circumferentially on the lower side of the circular plate. The four vertical bars are slidably connected in the rectangular groove of the threaded barrel, and a hexagonal prism is arranged at the center position of the upper side of the circular plate.

[0009] Furthermore, the sensor includes a telescopic airbag, both ends of which are fixedly connected to end plates, and the midlines of the relatively close sides of the two end plates are fixedly connected to contact switches, the end plates are provided with outlets, and the outlets connect the inside of the telescopic airbag and the outside of the end plates, and the outside of the outlet is connected to an elastic plugging piece, and the elastic connecting block on the side of the elastic plugging piece is fixedly connected to the side of the outlet.

[0010] Furthermore, the elastic plugging piece is an elastic thin sheet, and the elastic plugging piece can be turned outward when subjected to pressure.

[0011] Furthermore, the telescopic airbag is a soft thin-wall rubber airbag, and the telescopic airbag can shrink when subjected to pressure.

[0012] The beneficial effect achieved by the utility model using the above structure is that installation and fixation are achieved by self-tapping of the threads on the outside of the threaded barrel, and the installation operation is convenient. At the same time, the threaded barrel can control the installation depth as needed, so that the top can be flush with the ground, or only a part of it can be installed in the ground, so it can adapt to water level monitoring in different situations.

[0013] By setting up multiple sensors vertically, the water level can be monitored in real time. The water level change can be predicted in advance according to the rise or fall of the water level, thus realizing the early warning function.

[0014] By arranging the sensors uniformly distributed vertically on the two fixed vertical plates on the same surface at the same height, the safety factor can be improved to prevent inaccurate inspection data due to sensor damage. By staggering the first and second mounting holes in the vertical direction, the inspection data is richer and the accuracy of the monitoring data is improved.

[0015] By installing vertical bars in the rectangular groove, it is possible to prevent soil from entering the rectangular groove through the filter plate when the threaded tube is installed. At the same time, after the installation is completed and the vertical bars are removed, the rectangular groove can accommodate soil in the filter holes of the filter plate in the external through hole, preventing the filter plate from being blocked and preventing soil from entering the interior of the threaded tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall explosion state structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the threaded barrel of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the filter sheet of the utility model;

[0020] Figure 5 This is a schematic diagram of the installation structure of the utility model;

[0021] Figure 6 This is a schematic diagram of the sensor structure of the utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the sensor in the explosion state of the utility model.

[0023] Among them, 1 is a driving member, 11 is a hexagonal prism, 12 is a circular plate, and 13 is a vertical bar;

[0024] 2 threaded cylinder, 21 rectangular groove, 22 inner through hole, 23 outer through hole;

[0025] 3 filter sheets, 31 filter holes;

[0026] 4 mounting frame, 41 hexagonal groove, 42 fixing plate, 43 fixing vertical plate, 44 mounting hole 1, 45 mounting hole 2;

[0027] 5 sensor, 51 elastic plugging piece, 511 elastic connecting block, 52 end plate, 53 outlet, 54 contact switch, 55 telescopic airbag.

[0028] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] like Figure 1-7 As shown, the utility model provides an underground water prevention and control early warning device for a coal mine, comprising a threaded barrel 2, a driving member 1 and a mounting bracket 4, wherein a rotating thread is arranged on the outer side of the threaded barrel 2, a tip is arranged on the lower end of the threaded barrel 2, the threaded barrel 2 is a hollow structure, the threaded barrel 2 is internally threadedly connected with the mounting bracket 4, the upper end of the threaded barrel 2 is slidably connected with the driving member 1, the mounting bracket 4 comprises a fixing plate 42, the fixing plate 42 is circular, a thread is arranged on the outer side of the fixing plate 42, a hexagonal groove 41 is arranged at the center of the upper side surface of the fixing plate 42, and four fixing vertical plates 43 arranged in a "cross" shape are fixedly connected to the lower side surface of the fixing plate 42, wherein two fixing vertical plates 43 relatively arranged on the same surface are both vertically uniformly provided with a plurality of mounting holes 45, and the other two fixing vertical plates 43 are both vertically uniformly provided with a plurality of mounting holes 44, the mounting holes 44 and the mounting holes 45 are vertically staggered with each other, and sensors 5 are installed in the mounting holes 44 and the mounting holes 45.

[0031] Furthermore, the upper end surface of the threaded barrel 2 is evenly distributed with a plurality of vertically arranged rectangular grooves 21, the side of the rectangular groove 21 close to the center of the threaded barrel 2 is evenly distributed with a plurality of inner through holes 22, and the side of the rectangular groove 21 away from the center of the threaded barrel 2 is evenly distributed with a plurality of outer through holes 23, and the corresponding outer through holes 23 and inner through holes 22 are coaxially arranged, and the outer through holes 23 and the inner through holes 22 are both provided with filter plates 3, and the filter plates 3 are evenly distributed with a plurality of filter holes 31.

[0032] Furthermore, the number of the rectangular slots 21 is four.

[0033] Furthermore, the driving member 1 includes a circular plate 12 , and four vertical bars 13 are evenly distributed circumferentially on the lower side of the circular plate 12 . The four vertical bars 13 are slidably connected in the rectangular groove 21 of the threaded barrel 2 . A hexagonal prism 11 is set at the center of the upper side of the circular plate 12 .

[0034] Furthermore, the sensor 5 includes a telescopic airbag 55, both ends of which are fixedly connected with end plates 52, and the center lines of the two relatively close sides of the end plates 52 are fixedly connected with contact switches 54, and the end plates 52 are provided with outlets 53, and the outlets 53 connect the inside of the telescopic airbag 55 and the outside of the end plates 52, and the outer side of the outlet 53 is connected with an elastic plugging piece 51, and the elastic connecting block 511 on the side of the elastic plugging piece 51 is fixedly connected to the side of the outlet 53.

[0035] Furthermore, the elastic plugging piece 51 is an elastic thin sheet, and the elastic plugging piece 51 can be turned outward when subjected to pressure.

[0036] Furthermore, the telescopic airbag 55 is a soft thin-walled rubber airbag, and the telescopic airbag 55 can shrink when subjected to pressure.

[0037] Working process, such as Figure 1 As shown, the assembled threaded barrel 2, the driving member 1 and the mounting frame 4 are erected to the position where the water level is to be monitored, and connected to the hexagonal prism 11 of the driving member 1 through an electric wrench or other driving device, and the threaded barrel 2 is driven to rotate by the electric wrench, and the threaded barrel 2 is fixed to the ground of the mine by self-tapping through the thread set on the outside of the threaded barrel 2, and the depth of the threaded barrel 2 is set as required to achieve the fixation of the threaded barrel 2. Then the driving member 1 is pulled out to complete the fixing operation. When there is water, the water will enter the inside of the threaded barrel 2 through the filter plate 3, squeezing the sensor 5, and the gas in the telescopic airbag 55 will push the elastic plug 51 outside the outlet 53 to flip, thereby discharging the gas in the telescopic airbag 55, and the telescopic airbag 55 of the sensor 5 will shrink, and the two contact switches 54 will come into contact with each other, then the controller can know the position of the water level, thereby realizing the early warning function.

[0038] The beneficial effect of the present application is that installation and fixation are achieved by self-tapping of the threads on the outer side of the threaded tube 2, and the installation operation is convenient. At the same time, the threaded tube 2 can control the installation depth as needed, and the top can be flush with the ground, or only a part of it can be installed in the ground, so that it can adapt to water level monitoring in different situations.

[0039] By vertically arranging a plurality of sensors 5, the water level position can be monitored in real time, and the water level change can be predicted in advance according to the rising or falling process of the water level, thereby realizing the early warning function.

[0040] The positions of the sensors 5 evenly distributed vertically by the two fixed vertical plates 43 arranged on the same surface are at the same height, which can improve the safety factor and prevent the inaccurate inspection data due to damage to the sensors 5.

[0041] By vertically staggeredly arranging the first mounting hole 44 and the second mounting hole 45, the inspection data is enriched and the accuracy of the monitoring data is improved.

[0042] By installing the vertical bars 13 in the rectangular groove 21, it is possible to prevent soil from entering the rectangular groove 21 through the filter plate 3 when the threaded tube 2 is installed. At the same time, after the installation is completed and the vertical bars 13 are removed, the rectangular groove 21 can accommodate soil in the filter holes 31 of the filter plate 3 in the external through hole 23, thereby preventing the filter plate 3 from being blocked and preventing soil from entering the interior of the threaded tube 2.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal mine underground water prevention and control early warning device, comprising a threaded barrel (2), a driving member (1) and a mounting frame (4), characterized in that: The threaded barrel (2) is provided with a rotating thread on the outside, and a tip is provided at the lower end of the threaded barrel (2). The threaded barrel (2) is a hollow structure. The threaded barrel (2) is internally threadedly connected to a mounting frame (4). The upper end of the threaded barrel (2) is slidably connected to a driving member (1). The mounting frame (4) comprises a fixing plate (42). The fixing plate (42) is circular. The fixing plate (42) is provided with a thread on the outside. A hexagonal groove (41) is provided at the center of the upper side surface of the fixing plate (42). The lower side of the fixed plate (42) is fixedly connected to four fixed vertical plates (43) arranged in a "cross" shape, wherein two of the fixed vertical plates (43) arranged opposite to each other on the same surface are both vertically evenly provided with a plurality of second mounting holes (45), and the other two fixed vertical plates (43) are both vertically evenly provided with a plurality of first mounting holes (44), wherein the first mounting holes (44) and the second mounting holes (45) are arranged alternately in the vertical direction, and sensors (5) are both installed in the first mounting holes (44) and the second mounting holes (45).

2. The coal mine underground water prevention and control early warning device according to claim 1, characterized in that: The upper end surface of the threaded barrel (2) is evenly distributed with a plurality of vertically arranged rectangular grooves (21); the side surface of the rectangular groove (21) close to the center of the threaded barrel (2) is evenly distributed with a plurality of internal through holes (22); the side surface of the rectangular groove (21) away from the center of the threaded barrel (2) is evenly distributed with a plurality of external through holes (23); the corresponding external through holes (23) and internal through holes (22) are coaxially arranged; the external through holes (23) and the internal through holes (22) are both provided with filter plates (3); and the filter plates (3) are evenly distributed with a plurality of filter holes (31).

3. The coal mine underground water prevention and control early warning device according to claim 2, characterized in that: The number of the rectangular grooves (21) is four.

4. The coal mine underground water prevention and control early warning device according to claim 3, characterized in that: The driving member (1) comprises a circular plate (12), four vertical bars (13) are evenly distributed in the circumferential direction on the lower side of the circular plate (12), the four vertical bars (13) are slidably connected in the rectangular groove (21) of the threaded barrel (2), and a hexagonal prism (11) is arranged at the center position of the upper side of the circular plate (12).

5. The coal mine underground water prevention and control early warning device according to claim 4, characterized in that: The sensor (5) comprises a telescopic airbag (55), both ends of the telescopic airbag (55) are fixedly connected to end plates (52), the center lines of the relatively close sides of the two end plates (52) are fixedly connected to contact switches (54), the end plates (52) are provided with outlets (53), the outlets (53) communicate with the inside of the telescopic airbag (55) and the outside of the end plates (52), the outside of the outlet (53) is connected to an elastic plugging piece (51), and the elastic connecting block (511) on the side of the elastic plugging piece (51) is fixedly connected to the side of the outlet (53).

6. The coal mine underground water prevention and control early warning device according to claim 5, characterized in that: The elastic blocking piece (51) is an elastic thin sheet, and the elastic blocking piece (51) can be turned outward when subjected to pressure.

7. The coal mine underground water prevention and control early warning device according to claim 6, characterized in that: The telescopic airbag (55) is a soft, thin-walled rubber airbag, and the telescopic airbag (55) can shrink when subjected to pressure.

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