Equipment for detecting underground water of mine by measuring resistance

Abstract

The invention belongs to the technical field of mine underground water detection, and discloses a device for detecting mine underground water by measuring resistance. A conductive metal ball is placed in an open top box of the device, and a vibration motor is started to vibrate; excitation force generated by the vibration motor enables the open top box and the damping spring to vibrate up and down relative to the frame. After the vibration of the open top box is completed, the conductive metal ball randomly falls into one of the grooves of the bottom plate of the open top box and is connected with the lead of the electromagnet, so that the electromagnet forms a closed loop with current. The electromagnet can generate a magnetic field after being electrified, and then the infrared collimator at the bottom end of the insulating thin shell can be attracted. And after the infrared collimator moves to the position near the electromagnet, a red dot emitted by the aiming part is a resistance measuring point of the probe. Multiple times of random measurement can be carried out according to the anchored range area, and the accuracy of underground water detection through a resistivity method in the area is improved.

Description

Technical Field

[0001] This invention belongs to the field of mine groundwater detection technology, and more specifically relates to a device for detecting mine groundwater by measuring resistance. Background Technology

[0002] Mine groundwater refers to water that exists in the pores of rocks below the mine surface, typically referring to water in saturated aquifers below the water table. Mine groundwater plays a vital role in mine production and daily life; therefore, detecting mine groundwater can support mining activities and ensure the sustainable development of the mining industry.

[0003] Among related technologies, methods for detecting groundwater in mines mainly include the natural electric field method, resistivity method, shallow seismic method, and high-density electrical resistivity method. The resistivity method is widely used due to its high measurement accuracy and applicability to various geological conditions. The resistivity method is a technique that determines the form and distribution of underground materials by measuring their resistance. This technique utilizes the characteristic of electric current conduction in underground materials, measuring the resistance at different depths to determine the properties and distribution of underground materials. Typically, workers insert the probe of the groundwater source detection device into the surface layer to obtain the corresponding resistance.

[0004] However, since the resistivity method can only achieve good detection results when the underground material is relatively uniform, inaccurate resistance measurement results are easy to occur during actual detection, which in turn affects the detection of groundwater and the progress of subsequent mining work. Summary of the Invention

[0005] To address some or all of the technical problems existing in the prior art, the present invention provides a device for detecting groundwater in mines by measuring resistance, thereby solving the technical problem that inaccurate measurement results are easily obtained when using the resistivity method to detect groundwater in related technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A device for detecting groundwater in mines by measuring resistance includes: The frame consists of an upper top plate, a lower top plate, and multiple vertical rods inserted between the two, and the surface of the lower top plate is provided with a transparent part; The main control box contains various main control modules. These modules emit current and detect the resistivity of underground materials to obtain information about the presence of groundwater below the surface. Vibration damping springs, the number of which is equal to the number of the vertical rods, are sleeved on the outer periphery of the vertical rods; An open-top box is slidably mounted on the vertical rod and connected to the damping spring. The inner surface of the bottom plate of the open-top box is provided with multiple grooves. Electromagnets corresponding to the grooves are provided on the lower surface of the bottom plate of the open-top box. The wires of the electromagnets pass through the bottom plate of the open-top box and extend into the grooves. The electromagnets are also connected to a miniature power supply through the wires. Conductive metal balls that are compatible with the grooves are also placed inside the open-top box. An insulating thin shell is disposed on the lower surface of the bottom plate of the open-top box and covers the electromagnet to protect it. The area of ​​the bottom plate of the insulating thin shell is smaller than the area of ​​the transparent part. A vibration motor is disposed on the side of the open-top box, and the vibration motor is used to provide excitation force to the open-top box; An infrared aiming device is slidably disposed between the insulating thin shell and the transparent part. One end of the infrared aiming device is provided with an aiming part, which contacts the transparent part and emits infrared rays outward for aiming. The probe is connected to the main control module inside the main control box via wires and spring wires.

[0007] In some possible implementations, the lower top plate is slidably connected to the multiple vertical rods, and the lower top plate can move vertically along the vertical rods.

[0008] In some possible implementations, a support plate is provided at the bottom of the main control box, and the main control box is mounted on the vehicle frame via the support plate, with the main control box located between the support plate and the upper top plate.

[0009] In some possible implementations, multiple vertical rods are threadedly fixed with pads, and the main control box is mounted on the pads via the support plate.

[0010] In some possible implementations, casters are mounted on both sides of the main control box via Z-shaped brackets, the vertical section of which is a telescopic structure.

[0011] In some possible implementations, the open-top box is provided with external flanges around its perimeter, and the open-top box is slidably mounted on the vertical rod via the external flanges. The open-top box is connected to the damping spring via the external flanges.

[0012] In some possible implementations, baffles are also provided around the outer surface of the base plate of the insulating shell.

[0013] In some possible implementations, the transparent portion of the lower top plate is made of smooth, light-transmitting glass.

[0014] In some possible implementations, a magnetic metal plate is provided at the end of the infrared sight opposite to the aiming part. The infrared sight contacts the outer surface of the base plate of the insulating shell through the magnetic metal plate, and the magnetic metal plate attracts the electromagnet through the insulating shell.

[0015] In some possible implementations, the end of the infrared sight is provided with a ball bearing located beside the aiming part, and the infrared sight contacts the transparent part through the ball bearing.

[0016] The device for detecting groundwater in mines by measuring resistance provided by this invention has at least the following beneficial effects: In the device for detecting groundwater in mines by measuring resistance provided by this invention, a conductive metal ball is placed inside the open-top box of the device. With the start of the vibration motor, the excitation force generated by the motor causes the open-top box and the damping springs to vibrate up and down relative to the frame. After the open-top box vibrates, the conductive metal ball randomly falls into one of the grooves on the bottom plate of the open-top box and simultaneously connects to the wire of the electromagnet, thus forming a closed circuit with current in the electromagnet. When the electromagnet is energized, it generates a magnetic field, which attracts an infrared aiming device attached to the bottom of the insulating shell. After the infrared aiming device moves near the electromagnet, the red dot emitted by the aiming part is the resistance measurement point of the probe. Using this structural design, multiple random resistance measurements can be performed within a pre-anchored area, thereby improving the accuracy of groundwater detection using the resistivity method within that area and ensuring the progress of subsequent groundwater extraction work. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings: Figure 1 A schematic diagram of the overall structure of a device for detecting groundwater in mines by measuring resistance, provided in an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the left side structure; Figure 3 for Figure 1 A schematic diagram of the structure on the right side; Figure 4 for Figure 1 A schematic diagram of the structure viewed from below; Figure 5A schematic diagram of the electromagnet distribution structure of a device for detecting groundwater in a mine by measuring resistance, provided in an embodiment of the present invention; Figure 6 A schematic diagram of the internal structure of the open-top box of the device for detecting groundwater in mines by measuring resistance, provided in an embodiment of the present invention; Figure 7 A schematic diagram of a device for detecting groundwater in a mine by measuring resistance, provided as another embodiment of the present invention; Figure 8 A bottom view of a device for detecting groundwater in a mine by measuring resistance, provided in another embodiment of the present invention; Figure 9 This is a partially enlarged schematic diagram of a device for detecting groundwater in mines by measuring resistance, provided as another embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 110. Top plate; 120. Bottom plate; 121. Transparent section; 130. Vertical rod; 131. Pad block; 200. Main control box; 210. Support plate; 300. Casters; 310. Bracket; 311. Main rod; 312. Telescopic rod; 313. Positioning hole; 314. Fastening bolt; 400. Vibration damping springs; 500. Open top box; 510. External flange of the box; 520. Groove; 600. Electromagnet; 610. Wire; 620. Conductive metal ball; 700, Insulating thin shell; 710, Baffle; 800, Vibrating motor; 900. Infrared sight; 910. Magnetic metal plate; 920. Sighting head; 930. Ball bearing; 1000, probe; 1100, wire; 1200, spring wire. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] Groundwater exploration in mines is a crucial foundational engineering project, and the rational extraction and utilization of groundwater resources is a major issue today. Because groundwater is buried deep below the surface, its storage state is difficult to observe through direct visual means. The resistivity method for groundwater exploration works by measuring the resistance at different depths based on the differences in conductivity of substances below the surface. Specifically, the resistivity method uses a probe or other medium to input current into the underground area of ​​the measurement region. By measuring the voltage change at different distances, the resistance of the underground substances can be determined. Water is a highly conductive substance; therefore, areas with low resistance often indicate the distribution area of ​​groundwater.

[0021] However, in actual measurement processes, the distribution of underground materials below the surface is not completely uniform, thus introducing errors when current passes through the underground medium. If random and multi-point detection cannot be performed within the anchored area, inaccurate resistance measurements can easily occur, affecting subsequent groundwater extraction. Therefore, this invention provides a device for detecting groundwater in mines by measuring resistance, thereby solving the aforementioned technical problems.

[0022] like Figures 1-6 As shown in the figure, the device for detecting groundwater in mines by measuring resistance provided in this embodiment of the invention includes a frame, a main control box 200, a vibration damping spring 400, an open-top box 500, an insulating thin shell 700, a vibration motor 800, an infrared aiming device 900, and a probe 1000. The frame is the supporting structure of the detection device and includes an upper top plate 110, a lower top plate 120, and multiple vertical rods 130 inserted between them. The multiple vertical rods 130 are respectively located at the four corners of the upper top plate 110 and the lower top plate 120 and are fixedly connected to them. Furthermore, a transparent section 121 is provided at the center of the surface of the lower top plate 120, allowing direct observation of the area below the frame. The transparent section 121 also has a light-transmitting function. The transparent section 121 can be made of smooth transparent glass or transparent plastic, etc., and this embodiment does not impose further limitations.

[0023] A support plate 210 is provided at the bottom of the main control box 200. The support plate 210 is positioned between multiple vertical rods 130 of the frame. Specifically, the four corners of the support plate 210 are connected to the vertical rods 130 respectively. The main control box 200 is mounted on the support plate 210 and is located between the support plate 210 and the upper top plate 110. Preferably, each vertical rod 130 is fixed with a pad 131 by a threaded connection, and the main control box 200 is mounted on the pads 131 via the support plate 210. Various main control modules are installed and connected inside the main control box 200. These modules can emit current and detect the resistance of underground materials to obtain information about the presence of groundwater below the surface.

[0024] In this embodiment, casters 300 are provided on both sides of the main control box 200 via brackets 310. The ends of the brackets 310 are connected to the casters 300 via bearings or other structures, so the frame can move within the anchoring area of ​​the mine via the casters 300.

[0025] The damping spring 400 is a helical spring structure, sleeved on the outer periphery of the vertical rod 130. Furthermore, spring washers are provided at both ends of the damping spring 400 along its length. The spring washer at the bottom of the damping spring 400 is fixedly mounted on the vertical rod 130, while the spring washer at the top of the damping spring 400 is slidably mounted on the vertical rod 130. Therefore, the damping spring 400 can be compressed by pressing the spring washer at the top. Preferably, the spring coefficients of the multiple damping springs 400 are all the same.

[0026] Continue as Figures 1-4 As shown, the open-top box 500 has external flanges 510 distributed around its perimeter. The open-top box 500 is slidably mounted on the vertical rod 130 via these external flanges 510. Furthermore, the open-top box 500 is connected to the spring washer at the top of the vibration damping spring 400 via the base plate of these external flanges 510. A vibration motor 800 is also fixedly mounted on the outer surface of one of the side plates of the open-top box 500. When the vibration motor 800 is started, it provides excitation force to the open-top box 500. The open-top box 500 then drives the vibration damping spring 400 to move up and down, thereby achieving the vibration function.

[0027] Multiple grooves 520 are provided on the inner surface of the bottom plate of the open-top box 500, and the multiple grooves 520 are distributed in a certain arrangement order on the inner surface of the bottom plate of the open-top box 500. For example Figure 5 and Figure 6 As shown, multiple electromagnets 600 are fixedly installed on the lower surface of the bottom plate of the open-top box 500, with each electromagnet 600 corresponding one-to-one with a number of grooves 520. Each electromagnet 600 is made of an iron core and wires 610 wound together, and a protective cover is provided on the outside of the electromagnet 600. The electromagnets 600 are fixed to the lower surface of the bottom plate of the open-top box 500 by means of protective covers. Specifically, the electromagnets 600 can be fixed to the lower surface of the bottom plate of the open-top box 500 by means of clamps or adhesive.

[0028] In this embodiment, the wire 610 of each electromagnet 600 passes through the bottom plate of the open-top box 500 and extends to the groove 520. That is, each groove 520 is provided with an outwardly protruding connector wire. Preferably, a conductive pad for connecting to the connector wire can be provided in the groove 520. Furthermore, each electromagnet 600 is connected to a miniature power source via the wire 610, and the miniature power source can be hidden inside the bottom plate of the open-top box 500. In addition, the interior of the open-top box 500 is also provided with a conductive metal ball 620 adapted to the groove 520. When the conductive metal ball 620 randomly enters one of the grooves 520, it will connect to the connector wire inside, so that the electromagnet 600 is connected to the miniature power source, thereby realizing the function of electromagnetic adsorption.

[0029] In actual use, the vibration motor 800 is started to drive the open-top box 500 to vibrate on the frame, and the conductive metal ball 620 placed inside the open-top box 500 will also vibrate accordingly. Once the vibration motor 800 stops working, the conductive metal ball 620 will randomly roll into one of the grooves 520 on the inner surface of the bottom plate of the open-top box 500, and connect with the connector wire inside the groove 520, so that the electromagnet 600, the wire 610 and the miniature power supply form an energized structure, thereby making the electromagnet 600 generate a certain magnetic force.

[0030] The insulating thin shell 700 is a shell structure installed on the lower surface of the bottom plate of the open-top box 500. The insulating thin shell 700 covers and protects the electromagnet 600. The insulating thin shell 700 is a thin shell structure made of insulating material. On the one hand, the insulating thin shell 700 can prevent leakage current, and on the other hand, it can protect the structural safety of the electromagnet 600, so that the electromagnet 600 can operate normally for a long time.

[0031] The infrared aiming device 900 is a device that uses infrared light for aiming. The infrared aiming device 900 is disposed between the insulating shell 700 and the transparent portion 121 of the lower top plate 120. Specifically, one end of the infrared aiming device 900 is provided with an aiming part 920, which can emit infrared light outward for aiming. This aiming part 920 is in contact with the transparent portion 121 of the lower top plate 120. That is, the infrared aiming device 900 can aim at the ground surface by emitting infrared light through the aiming part 920 and through the transparent portion 121. Conversely, the opposite end of the aiming part 920 is provided with a magnetic metal sheet 910, which can be attracted to the electromagnet 600 through the insulating shell 700.

[0032] In this embodiment, the probe 1000 is connected to the main control module in the main control box 200 via the wire 1100 and the spring wire 1200. By stretching the spring wire 1200, the probe 1000 can be inserted into the infrared aiming position and the resistance at that position can be measured.

[0033] In the device for detecting groundwater in mines by measuring resistance provided in this embodiment of the invention, a conductive metal ball 620 is placed inside the open-top box 500 of the device. With the start of the vibration motor 800, the excitation force generated by the vibration motor 800 causes the open-top box 500 and the damping spring 400 to vibrate up and down relative to the frame. After the open-top box 500 vibrates, the conductive metal ball 620 randomly falls into one of the grooves 520 on the bottom plate of the open-top box 500 and simultaneously connects to the wire 610 of the electromagnet 600, thus forming a closed circuit with current in the electromagnet 600. When the electromagnet 600 is energized, it generates a magnetic field, which attracts the infrared aiming device 900 at the bottom of the insulating shell 700. After the infrared aiming device 900 moves to the vicinity of the electromagnet 600, the red dot emitted by the aiming part 920 is the resistance measurement point of the probe 1000. Then, the spring wire 1200 is manually stretched, and the probe 1000 is inserted. By adopting the above structural design, multiple random resistance measurements can be performed within a pre-anchored area, thereby improving the accuracy of groundwater detection using the resistivity method within that area and ensuring the progress of subsequent groundwater extraction work.

[0034] In some embodiments, casters 300 are mounted on both ends of the main control box 200 via Z-shaped brackets 310. For example... Figure 7 and Figure 8 As shown, the vertical section of the bracket 310 is a telescopic structure. Specifically, the bracket 310 includes a main rod 311 and a telescopic rod 312. The main rod 311 of the bracket 310 is connected to the caster 300 through bearings and other structures. The telescopic rod 312 of the bracket 310 is sleeved on and slides outside the main rod 311, and is also directly connected to the main control box 200. Multiple vertically arranged positioning holes 313 are also provided on the wall surface of the main rod 311, and fastening bolts 314 are installed inside the positioning holes 313 through threaded connections.

[0035] In practical use, the main control box 200, along with the frame, can be moved on the main pole 311 via the telescopic rod 312. After moving to the appropriate position, the fastening bolts 314 are inserted into the designated positioning holes 313. The fastening bolts 314 abut against the telescopic rod 312, thus fixing the frame in the preset position. This structural design allows the ground clearance of the lower top plate 120 to be adjusted according to the actual anchoring area, enabling the detection device to be applied to different usage scenarios.

[0036] In some embodiments, the lower top plate 120 is mounted on the vertical rod 130 via a sliding connection. The portion of the vertical rod 130 located below the lower top plate 120 may have multiple vertically arranged bolt holes, and the lower top plate 120 can be fixed at a predetermined height to the vertical rod 130 by screwing bolts into the bolt holes.

[0037] In some embodiments, a baffle 710 is provided around the outer surface of the base plate of the insulating shell 700. By surrounding the outer surface of the base plate of the insulating shell 700 with the baffle 710, the infrared aiming device 900 can be prevented from leaving the range of the base plate of the insulating shell 700 during movement.

[0038] In some embodiments, the end of the infrared sight 900 may also be provided with a ball bearing 930. For example... Figure 9 As shown, the ball bearing 930 is disposed beside the aiming section 920 of the infrared aiming device 900, and the infrared aiming device 900 contacts the transparent section 121 of the lower top plate 120 through the ball bearing 930. By using the structure of the ball bearing 930 to replace the traditional sliding friction with rolling friction, the smoothness of the movement of the infrared aiming device 900 can be improved, while the friction of the aiming section 920 can be reduced, thereby extending the service life of the infrared aiming device 900.

[0039] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An apparatus for detecting mine ground water by measuring electrical resistance, characterised in that, Include: Frame, the frame is composed of upper roof, lower roof and multiple vertical rods inserted between the two, the surface of the lower roof is provided with a transparent part; Master control box, multiple master control modules are installed in the master control box, the master control modules emit current outward and detect the resistivity of underground matter to obtain information whether there is underground water below the ground surface; Damping spring, the number of damping springs is equal to the number of vertical rods, the damping springs are sleeved on the outer periphery of the vertical rods; Open-top box, the open-top box is slidingly arranged on the vertical rods and connected with the damping springs, the inner surface of the bottom plate of the open-top box is provided with multiple grooves, the lower surface of the bottom plate of the open-top box is provided with multiple electromagnets corresponding to the grooves, the wires of the electromagnets penetrate the bottom plate of the open-top box and extend into the grooves, the electromagnets are further connected with micro power supplies through the wires, and the inside of the open-top box is further placed with conductive metal balls matched with the grooves; Insulating shell, the insulating shell is arranged on the lower surface of the bottom plate of the open-top box and covers the outside of the electromagnets to protect the electromagnets, and the area of the bottom plate of the insulating shell is smaller than the area of the transparent part; Vibration motor, the vibration motor is arranged on the side surface of the open-top box, and the vibration motor is used to provide exciting force to the open-top box; Infrared sighting device, the infrared sighting device is slidingly arranged between the insulating shell and the transparent part, one end of the infrared sighting device is provided with a sighting part, the sighting part is in contact with the transparent part, and infrared rays are emitted outward for aiming; Probe, the probe is connected with the master control modules in the master control box through wires and spring wires.

2. The device for detecting mine ground water by measuring resistance according to claim 1, characterized by: The lower roof and the multiple vertical rods are in sliding connection, and the lower roof can move in the vertical direction along the vertical rods.

3. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: The bottom end of the master control box is provided with a supporting plate, the master control box is arranged on the frame through the supporting plate, and the master control box is located between the supporting plate and the upper roof.

4. The apparatus for detecting mine ground water by measuring resistance according to claim 3, characterized by: Multiple pad blocks are threadedly fixed on the vertical rods, and the master control box is arranged on the pad blocks through the supporting plate.

5. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: Z-shaped supports are arranged on the two side surfaces of the master control box, and the vertical sections of the supports are of telescopic structure.

6. The apparatus for detecting mine ground water by measuring resistance according to claim 1, wherein: Flanges are arranged around the open-top box, the open-top box is slidingly arranged on the vertical rods through the flanges, and the open-top box is connected with the damping springs through the flanges.

7. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: A baffle is further arranged around the outer surface of the bottom plate of the insulating shell.

8. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: The transparent part of the lower roof is made of smooth and light-transmitting glass.

9. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: The end of the infrared sighting device opposite to the sighting part is provided with a magnetic metal sheet, the infrared sighting device is in contact with the outer surface of the bottom plate of the insulating shell through the magnetic metal sheet, and the magnetic metal sheet and the electromagnets are mutually adsorbed through the insulating shell.

10. The apparatus for detecting mine ground water by measuring resistance according to claim 1, characterized by: A ball is arranged at the end of the infrared sighting device, the ball is located beside the sighting part, and the infrared sighting device is in contact with the transparent part through the ball.

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