Water seepage monitoring device for coal mine safety

Abstract

The utility model belongs to the technical field of underground exploration, in particular to a water seepage monitoring device for coal mine safety, which is characterized in that the collection range of pit penetration is 880m in the direction from a certain working face open-off cut to an alley entrance, a maximum penetration distance method is adopted for data collection, and an algorithm with stronger anti-interference capability is adopted during data processing. A linear fitting method is used for carrying out iterative regression, statistics and fixed parameter analysis on a fixed point curve of a working face, then a stepping motor on the inner side of a limiting disc can be automatically started, and a motor shaft of the stepping motor drives a driving shaft to rotate so as to drive the limiting disc to rotate by 180 degrees, so that a slot wave seismic prospecting instrument probe located at the top directly faces the ground; transmission slot wave energy CT imaging is adopted in slot wave data processing, the geological result in the working face is obtained by comprehensively analyzing slot wave seismic exploration and radio wave tunnel perspective detection exploration results, the joint analysis of the two methods is richer than that of a single method, and the geological interpretation precision in the working face is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground exploration, and in particular relates to a water seepage monitoring device for coal mine safety. Background Art

[0002] At present, during the mining process, coal mines need to find out the development of the geological structure inside the working face to provide accurate structural information when the coal mine is excavating the working face. However, due to the influence of the working face space and natural environment, there are some problems.

[0003] After searching, the publication number: CN208902644U announced a water seepage monitoring device for coal mine safety. In the utility model, two groups of humidity detection rods are symmetrically arranged, and the rear end of the humidity detection rod is a cone-shaped structure. The cone-shaped body at the rear end of the humidity detection rod is embedded in the inner wall of the mine by hammering. When the moisture in the geology reaches a certain value, the humidity detection rod transmits the moisture it contacts through the Hall sensor. When water drops onto the sensing top cover, the micro-vibration generated causes the touch rod to contact the contact point, causing induction and alarming, achieving a strong practical effect. However, when encountering a geological anomaly that conceals a disaster factor during the electromagnetic wave penetration process, the electromagnetic wave energy will be significantly weakened. Only by using the detection rod for single water seepage detection, the effect is general, and it is not convenient for joint analysis, thereby reducing practicality.

[0004] Therefore, a water seepage monitoring device for coal mine safety is designed to solve the above problems. Utility Model Content

[0005] To solve the problems raised in the above background technology. The utility model provides a water seepage monitoring device for coal mine safety. When the device is in use, the handheld probes of the slot wave seismic exploration instrument body and the radio wave perspective instrument body can be clamped on the inner side of the elastic clamp and fastened with screws. During the monitoring process, the collection range of the pit penetration is 880m from a certain working face cut to the direction of the laneway. The maximum penetration distance method is used for data collection. When processing data, an algorithm with strong anti-interference ability is used. The linear fitting method is used to iteratively regress the fixed-point curve of the working face, and statistical and fixed parameter analysis is performed. After that, the stepper motor on the inner side of the limit plate can be automatically started, and its motor shaft drives the driving shaft to rotate, thereby driving the limit plate to rotate 180°, so that the slot wave seismic exploration instrument probe located at the top is facing the ground. The slot wave data processing adopts the transmission slot wave energy CT imaging. By comprehensively analyzing the exploration results of slot wave seismic exploration and radio wave tunnel perspective detection, the geological results in the working face are obtained. Through the joint analysis of the two methods, it is much richer than a single method, providing the accuracy of geological interpretation in the working face.

[0006] On the other hand, during detection, the reduction motor on the top of the detection slide is started synchronously through the control end, and its motor shaft drives the threaded rod to rotate. With the cooperation of the two sets of threaded rods through the screw rod with the built-in threaded groove of the connecting seat, the connecting seat can drive the horizontal frame to move stably in the horizontal direction, completing mechanical detection, expanding the monitoring range of this device, and improving the practicality of this product.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a water seepage monitoring device for coal mine safety, comprising a joint monitoring mechanism, the joint monitoring mechanism comprising a detection slide, a horizontal frame, a slot wave seismic prospecting instrument body, a radio wave fluoroscopy instrument body, a limit plate and an elastic clamp, the horizontal frame is movably connected to the top of the detection slide, the radio wave fluoroscopy instrument body and the slot wave seismic prospecting instrument body are threadedly connected to the top of the horizontal frame, the limit plate is rotatably connected to the inner side of the bottom of the horizontal frame, and one end of the elastic clamp is fixedly connected to the surface of the limit plate.

[0008] As a preferred embodiment of the utility model of a water seepage monitoring device for coal mine safety, a stepper motor and a drive shaft are also provided at the bottom of the horizontal frame, the motor shaft of the stepper motor is fixedly connected to one end of the drive shaft through a coupling, and the outer side of the drive shaft is fixedly connected to the inner middle part of the limit plate.

[0009] As a preferred embodiment of the utility model of a water seepage monitoring device for coal mine safety, two groups of elastic clamps are provided, and the inner sides of the two groups of elastic clamps are clamped with the probe ends of the slot wave seismic exploration instrument body and the radio wave perspective instrument body.

[0010] As a preferred embodiment of the utility model of a water seepage monitoring device for coal mine safety, a reduction motor, a threaded rod and a connecting seat are also provided on the top of the detection slide, the reduction motor is threadedly connected to the outer side of the top of the detection slide, the threaded rod is threadedly sleeved on the inner side of the connecting seat, and the surface of the connecting seat is fixedly connected to one side of the horizontal frame.

[0011] As a preferred embodiment of the water seepage monitoring device for coal mine safety of the utility model, a thread groove matching the size of the threaded rod is provided through the interior of the connecting seat.

[0012] As a preferred embodiment of the utility model of a water seepage monitoring device for coal mine safety, two groups of threaded rods are provided, and the two groups of threaded rods are symmetrically distributed on both sides of the horizontal frame.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, the hand-held probes of the slot wave seismic exploration instrument body and the radio wave perspective instrument body are clamped on the inner side of the elastic clamp and fastened with screws. During the monitoring process, the collection range of the pit penetration is 880m from a certain working face cut to the direction of the lane entrance. The maximum penetration distance method is used for data collection. When processing data, an algorithm with strong anti-interference ability is used. The linear fitting method is used to iteratively regress the fixed-point curve of the working face, and statistical and fixed parameter analysis is performed. After that, the stepper motor on the inner side of the limit plate can be automatically started, and its motor shaft drives the drive shaft to rotate, thereby driving the limit plate to rotate 180°, so that the slot wave seismic exploration instrument probe located at the top is facing the ground. The slot wave data processing adopts transmission slot wave energy CT imaging. Through the comprehensive analysis of the exploration results of slot wave seismic exploration and radio wave tunnel perspective detection, the geological results in the working face are obtained. Through the joint analysis of the two methods, it is much richer than a single method, providing the accuracy of geological interpretation in the working face.

[0015] 2. In the utility model, during detection, the reduction motor on the top of the detection slide is synchronously started through the control end, and its motor shaft drives the threaded rod to rotate. With the cooperation of the screw rod with the built-in threaded groove of the two sets of threaded rods through the connecting seat, the connecting seat can drive the horizontal frame to translate stably in the horizontal direction, completing mechanical detection, expanding the monitoring range of the device, and improving the practicality of this product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a side view of the joint monitoring mechanism in the utility model;

[0018] Figure 2 It is a structural schematic diagram of the back of the joint monitoring mechanism in the utility model;

[0019] Figure 3 This is a distribution diagram of the connecting seat and the horizontal frame in the utility model;

[0020] Figure 4 This is a cross-sectional effect diagram of the horizontal frame in the utility model;

[0021] In the figure:

[0022] 1. Joint monitoring mechanism; 11. Detection slide; 12. Horizontal frame; 13. Slot wave seismic exploration instrument body; 14. Radio wave fluoroscopy instrument body; 15. Limit plate; 16. Elastic clamp; 2. Stepper motor; 3. Drive shaft; 4. Reducer motor; 5. Threaded rod; 6. Connecting seat; 7. Threaded groove. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1 As shown:

[0025] A water seepage monitoring device for coal mine safety is known from CN208902644U. The conical body at the rear end of the humidity detection rod is embedded in the inner wall of the mine by hammering. When the moisture in the geology reaches a certain value, the humidity detection rod transmits the moisture it contacts through the Hall sensor. When water drops onto the sensing top cover, the micro-vibration generated causes the feeler rod to contact the contact point, causing induction and alarming, thereby achieving a highly practical effect. However, when encountering a geological anomaly that conceals a disaster-causing factor during the electromagnetic wave penetration process, the electromagnetic wave energy will be significantly weakened. Only using the detection rod for water seepage detection has a general effect and is not convenient for joint analysis, thereby reducing practicality. On this basis, a joint monitoring mechanism 1 is added.

[0026] like Figure 1 , Figure 2 and Figure 4 As shown:

[0027] In an optional embodiment: the joint monitoring mechanism 1 includes a detection slide 11, a horizontal frame 12, a slot wave seismic exploration instrument body 13, a radio wave fluoroscopy instrument body 14, a limit plate 15 and an elastic clamp 16, the horizontal frame 12 is movably connected to the top of the detection slide 11, the radio wave fluoroscopy instrument body 14 and the slot wave seismic exploration instrument body 13 are threadedly connected to the top of the horizontal frame 12, the limit plate 15 is rotatably connected to the inner side of the bottom of the horizontal frame 12, one end of the elastic clamp 16 is fixedly connected to the surface of the limit plate 15, and a stepper motor 2 and a drive shaft 3 are also provided at the bottom of the horizontal frame 12, the motor shaft of the stepper motor 2 is fixedly connected to one end of the drive shaft 3 through a coupling, and the outer side of the drive shaft 3 is fixedly connected to the inner middle part of the limit plate 15.

[0028] In this embodiment: when the device is in use, the handheld probes of the slot wave seismic exploration instrument body 13 and the radio wave perspective instrument body 14 can be clamped on the inner side of the elastic clamp 16 and fastened with screws. During the monitoring process, the acquisition range of the pit penetration is 880m from a certain working face cut to the direction of the laneway. The maximum penetration distance method is used for data acquisition. When processing data, an algorithm with strong anti-interference ability is used. The fixed-point curve of the working face is iteratively regressed by the linear fitting method, and statistical and fixed parameter analysis is performed. After that, the stepper motor 2 on the inner side of the limit plate 15 can be automatically started, and its motor shaft drives the drive shaft 3 to rotate, thereby driving the limit plate 15 to rotate 180°, so that the slot wave seismic exploration instrument probe located at the top is facing the ground. The slot wave data processing adopts the transmission slot wave energy CT imaging. By comprehensively analyzing the exploration results of slot wave seismic exploration and radio wave tunnel perspective detection, the geological results in the working face are obtained. The joint analysis of the two methods is much richer than that of a single method, providing the accuracy of geological interpretation in the working face.

[0029] More specifically:

[0030] like Figure 1 and Figure 3 As shown:

[0031] In an optional embodiment: two groups of elastic clamps 16 are provided, and the inner sides of the two groups of elastic clamps 16 are clamped with the probe ends of the slot wave seismic exploration instrument body 13 and the radio wave fluoroscopy instrument body 14, and the top of the detection slide 11 is also provided with a reduction motor 4, a threaded rod 5 and a connecting seat 6, the reduction motor 4 is threadedly connected to the outer side of the top of the detection slide 11, the threaded rod 5 is threadedly sleeved on the inner side of the connecting seat 6, the surface of the connecting seat 6 is fixedly connected to one side of the horizontal frame 12, and a threaded groove 7 matching the size of the threaded rod 5 is opened through the interior of the connecting seat 6, and a threaded groove 7 matching the size of the threaded rod 5 is opened through the interior of the connecting seat 6.

[0032] In this embodiment: during detection, the reduction motor 4 on the top of the detection slide 11 is synchronously started through the control end, and its motor shaft drives the threaded rod 5 to rotate. With the cooperation of the screw rod of the two groups of threaded rods 5 through the built-in threaded groove 7 of the connecting seat 6, the connecting seat 6 can drive the horizontal frame 12 to translate stably in the horizontal direction, thereby completing mechanical detection, expanding the monitoring range of the device, and improving the practicality of the product.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A water seepage monitoring device for coal mine safety, comprising a joint monitoring mechanism (1), characterized in that: The joint monitoring mechanism (1) comprises a detection slide (11), a horizontal frame (12), a slot wave seismic exploration instrument body (13), a radio wave fluoroscopy instrument body (14), a limit plate (15) and an elastic clamp (16); the horizontal frame (12) is movably connected to the top of the detection slide (11); the radio wave fluoroscopy instrument body (14) and the slot wave seismic exploration instrument body (13) are threadedly connected to the top of the horizontal frame (12); the limit plate (15) is rotatably connected to the inner side of the bottom of the horizontal frame (12); and one end of the elastic clamp (16) is fixedly connected to the surface of the limit plate (15).

2. The water seepage monitoring device for coal mine safety according to claim 1, characterized in that: A stepper motor (2) and a drive shaft (3) are also provided at the bottom of the horizontal frame (12); the motor shaft of the stepper motor (2) is fixedly connected to one end of the drive shaft (3) via a coupling; and the outer side of the drive shaft (3) is fixedly connected to the inner middle part of the limit plate (15).

3. The water seepage monitoring device for coal mine safety according to claim 1, characterized in that: Two groups of elastic clamps (16) are provided, and the inner sides of the two groups of elastic clamps (16) are clamped with the probe ends of the slot wave seismic exploration instrument body (13) and the radio wave fluoroscopy instrument body (14).

4. The water seepage monitoring device for coal mine safety according to claim 1, characterized in that: The top of the detection slide (11) is also provided with a reduction motor (4), a threaded rod (5) and a connecting seat (6); the reduction motor (4) is threadedly connected to the outer side of the top of the detection slide (11); the threaded rod (5) is threadedly sleeved on the inner side of the connecting seat (6); and the surface of the connecting seat (6) is fixedly connected to one side of the horizontal frame (12).

5. The water seepage monitoring device for coal mine safety according to claim 4, characterized in that: A thread groove (7) matching the size of the threaded rod (5) is formed through the interior of the connection seat (6).

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