A mine field slope microseismic monitoring device

Abstract

This invention relates to the field of mine slope technology and discloses a mine slope micro-seismic monitoring device, including a monitoring instrument body. A transmission line is plugged into one side of the monitoring instrument, and a sensing probe is electrically connected to one end of the transmission line. An embedded transmission mechanism is provided at the bottom of the sensing probe. The embedded transmission mechanism includes a positioning plate, and the top of the positioning plate has an installation groove for use with the sensing probe. By setting the embedded transmission mechanism, this invention can press the positioning plate downwards to allow the conical guide head and the embedded rod to enter the underground of the slope until the bottom of the positioning plate contacts the ground surface, compacting the soil. Then, the sensing probe is fixed to the positioning plate by a clamping mechanism. When the vibration force generated by blasting is transmitted, the vibration force is transmitted to the positioning plate by the two embedded rods, and then to the sensing probe by the positioning plate, thereby monitoring accurate and effective data and improving the accuracy of monitoring.

Description

Technical Field

[0001] This invention relates to the field of mine slope technology, specifically to a mine slope microseismic monitoring device. Background Technology

[0002] A mine slope is a complex of slopes composed of multiple mining steps during open-pit mining. It includes structural elements such as step slopes, safety platforms, cleaning platforms, and transportation platforms. Ultimately, the slope angle needs to balance safety and economy.

[0003] A search revealed a Chinese patent document disclosing a precise delayed-time blasting vibration monitoring device for slopes [Announcement No.: CN214040345U]. This device includes a positioning device, a drill body, and a drill drill. The positioning device consists of a positioning plate, support legs, and a positioning seat. The positioning plate is a rectangular flat plate with a through hole at its center. A positioning seat is fixedly welded into this hole. The positioning seat is a circular ring structure with a set of symmetrically arranged limiting grooves on its inner ring. The drill body is a cylindrical structure with a drive motor installed inside. By using this blasting vibration monitoring device composed of the positioning device, drill body, and drill drill, and by creating a slot on the side of the drill rod on the drill drill, with a sensor probe for monitoring blasting vibration positioned near the lower end of the slot, the drill body drives the drill drill, thus drilling the drill drill into the ground, thereby improving the accuracy of the sensor probe's monitoring of blasting vibration data.

[0004] During mining operations, blasting is required. To ensure the safety of the slope and prevent it from collapsing due to blasting vibrations, vibration monitoring instruments are used to monitor the amplitude. When in use, the sensor probe is placed in contact with the ground, and the vibration monitoring instrument can obtain the corresponding amplitude when vibration occurs. However, considering that the soil in many places on the mine slope is relatively soft, it is difficult for the vibration force to be accurately transmitted to the sensor probe after the sensor probe is placed on its surface, so it is impossible to obtain effective and accurate data, which in turn affects the accuracy of monitoring. To address this issue, we propose a microseismic monitoring device for mine slopes. Summary of the Invention

[0005] The purpose of this invention is to provide a microseismic monitoring device for mine slopes to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mine slope micro-seismic monitoring device, comprising a monitoring instrument body, a transmission line plugged into one side of the monitoring instrument, an induction probe electrically connected to one end of the transmission line, and an embedded conduction mechanism provided at the bottom of the induction probe; The embedded conduction mechanism includes a positioning plate, the top of which has a mounting groove for use with a sensing probe, and both sides of the positioning plate are fixedly connected to an embedding rod, the bottom of which is fixedly connected to a tapered guide head. A clamping mechanism, which is movably mounted on the positioning plate; An inflation mechanism is fixedly mounted on an embedded rod.

[0007] Preferably, the embedded conduction mechanism further includes a cavity formed inside the embedded rod. Several sliding cavities are formed on both sides of the inner wall of the cavity. A pushing block is slidably connected to the inner wall of the sliding cavity. A first piston plate is fixedly connected to one side of the pushing block, and an extension rod is fixedly connected to the other side of the pushing block. A first spring is sleeved on the surface of the extension rod. One end of the first spring is fixedly connected to the inner wall of the sliding cavity, and the other end of the first spring is fixedly connected to one side of the pushing block.

[0008] Preferably, the inflation mechanism includes a connecting pipe fixedly connected to one side of the embedded rod, the connecting pipe being in communication with the cavity, one end of the connecting pipe being fixedly connected to an air collection box, and one side of the air collection box being fixedly connected to an air inlet pipe. The gas collection box is equipped with a second piston plate inside. A pressing block is fixedly connected to the top of the second piston plate. A pressing rod is fixedly connected to the top of the pressing block. The top of the pressing rod extends through to the top of the gas collection box.

[0009] Preferably, the clamping mechanism includes clamping blocks symmetrically arranged on both sides of the sensing probe. A bearing is provided on the side of the clamping block away from the sensing probe, and a threaded rod is rotatably connected to the bearing. A screwing block is fixedly connected to one end of the threaded rod. Two positioning blocks are symmetrically fixedly connected to the top of the positioning plate, and a threaded hole is opened on one side of the positioning block to cooperate with the threaded rod.

[0010] Preferably, the clamping block is arc-shaped and has a rubber pad fixedly connected to its inner wall.

[0011] Preferably, a first one-way valve is fixedly installed on the surface of the intake pipe, and a second one-way valve is fixedly connected to the surface of the connecting pipe.

[0012] Preferably, both the first piston plate and the second piston plate are made of rubber.

[0013] Preferably, a foot pedal is fixedly connected to the top of the pressing rod, and a plurality of anti-slip protrusions are fixedly connected to the top of the foot pedal.

[0014] Preferably, a second spring is fixedly connected to the bottom of the pedal, and the bottom of the second spring is fixedly connected to the top of the air collection box.

[0015] Preferably, the top of the embedded rod is fixedly connected to a pressure relief pipe, and the top of the pressure relief pipe is threadedly connected to a sealing cap.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention, by setting up an embedded transmission mechanism, allows the conical guide head and embedded rod to enter the underground of the slope by pressing down the positioning plate until the bottom of the positioning plate contacts the ground surface, compacting the soil. Then, the sensing probe is fixed to the positioning plate by a clamping mechanism. When the vibration force generated by blasting is transmitted, the vibration force is transmitted to the positioning plate by the two embedded rods, and then to the sensing probe by the positioning plate, thereby monitoring accurate and effective data and improving the accuracy of monitoring. This invention, by setting up an inflation mechanism, allows gas to be intermittently injected into the cavity by pressing down on a pedal after the embedded rod is inserted into the ground. Under the pressure of the gas, the first piston plate drives the push block to tilt and move upward in the sliding cavity. The push block then drives the extension rod to extend outward from the embedded rod and embed itself in the soil, further improving the stability of the embedded rod and thus improving the accuracy of monitoring. This invention, by setting up a clamping mechanism, can fix the sensor probe by placing it in the mounting slot and then rotating two screwing blocks. The screwing blocks will drive the threaded rod to rotate in the threaded hole, so that the threaded rod gradually drives the bearing and clamping blocks to move closer to the sensor probe. The sensor probe is clamped by the two clamping blocks. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure in this invention; Figure 2 For the present invention Figure 1 A magnified view of a section at point A in the middle; Figure 3 This is a perspective view of the clamping mechanism in this invention; Figure 4 This is a perspective view of the embedded transmission mechanism in this invention; Figure 5 This is a perspective view of the embedded rod in this invention; Figure 6 This is a schematic diagram showing the cross-section of the embedded rod in this invention; Figure 7 For the present invention Figure 6 A magnified view of a section at point B in the middle; Figure 8 This is a perspective view of the gas collection box in this invention. Figure 9 This is a perspective view of a partial structure of the inflation mechanism in this invention.

[0018] In the diagram: 1. Monitor body; 2. Transmission line; 3. Sensor probe; 4. Positioning plate; 5. Mounting slot; 6. Embedded rod; 7. Conical guide head; 8. Cavity; 9. Sliding cavity; 10. Push block; 11. First piston plate; 12. Extension rod; 13. First spring; 14. Connecting pipe; 15. Air collection box; 16. Air inlet pipe; 17. Second piston plate; 18. Pressing block; 19. Pressing rod; 20. Clamping block; 21. Bearing; 22. Threaded rod; 23. Tightening block; 24. Positioning block; 25. Threaded hole; 26. Rubber pad; 27. First one-way valve; 28. Second one-way valve; 29. ​​Foot pedal; 30. Anti-slip ridge; 31. Second spring; 32. Pressure relief pipe; 33. Sealing cap. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1-9 As shown, Example 1: A mine slope micro-seismic monitoring device includes a monitoring instrument body 1, a transmission line 2 plugged into one side of the monitoring instrument, an induction probe 3 electrically connected to one end of the transmission line 2, and an embedded transmission mechanism provided at the bottom of the induction probe 3. The embedded transmission mechanism includes a positioning plate 4, with a mounting groove 5 on the top of the positioning plate 4 for use with the sensing probe 3, and embedded rods 6 fixedly connected to both sides of the positioning plate 4, with a tapered guide head 7 fixedly connected to the bottom of the embedded rods 6. The clamping mechanism is movably mounted on the positioning plate 4; The inflation mechanism is fixedly mounted on the embedded rod 6.

[0021] The embedded transmission mechanism also includes a cavity 8 inside the embedded rod 6. Several sliding cavities 9 are provided on both sides of the inner wall of the cavity 8. A push block 10 is slidably connected to the inner wall of the sliding cavity 9. A first piston plate 11 is fixedly connected to one side of the push block 10, and an extension rod 12 is fixedly connected to the other side of the push block 10. A first spring 13 is sleeved on the surface of the extension rod 12. One end of the first spring 13 is fixedly connected to the inner wall of the sliding cavity 9, and the other end of the first spring 13 is fixedly connected to one side of the push block 10.

[0022] In this embodiment, considering that the soil in many locations on the mine slope is relatively soft, it is difficult for the vibration force to be accurately transmitted to the sensor 3 after the sensor 3 is placed on its surface, thus affecting the accuracy of monitoring. Therefore, by setting an embedded transmission mechanism, the conical guide head 7 and the embedded rod 6 can be pushed into the ground of the slope by pressing down the positioning plate 4 until the bottom of the positioning plate 4 contacts the ground surface, compacting the soil. Then, the sensor 3 is fixed to the positioning plate 4 by the clamping mechanism. When the vibration force is transmitted by blasting, the vibration force will be transmitted to the positioning plate 4 by the two embedded rods 6, and then to the sensor 3 by the positioning plate 4, thereby monitoring accurate and effective data and improving the accuracy of monitoring.

[0023] Example 2: Based on Embodiment 1, the embedded guide mechanism in this embodiment can directly transmit vibration force from the ground by inserting the embedded rod 6 into the ground to obtain effective and accurate data. However, considering that the embedded rod 6 may loosen due to vibration force during the vibration process, which will also affect the accuracy of monitoring, the inflation mechanism in this application includes a connecting pipe 14 fixedly connected to one side of the embedded rod 6. The connecting pipe 14 is connected to the cavity 8. One end of the connecting pipe 14 is fixedly connected to the air collection box 15, and one side of the air collection box 15 is fixedly connected to the air inlet pipe 16. The air collection box 15 is provided with a second piston plate 17. A lower pressure block 18 is fixedly connected to the top of the second piston plate 17. A lower pressure rod 19 is fixedly connected to the top of the lower pressure block 18. The top of the lower pressure rod 19 extends through to the top of the air collection box 15.

[0024] In this embodiment, by setting up an inflation mechanism, after the embedded rod 6 is inserted into the ground, pressing down on the pedal 29 with the foot will cause the pressing rod 19, the pressing block 18, and the second piston plate 17 to move downwards, simultaneously compressing the gas in the gas collection box 15. The gas in the gas collection box 15 will enter the cavity 8 through the connecting pipe 14. After releasing the pedal 29, the elastic force generated by the second spring 31 will push the pedal 29, the pressing rod 19, the pressing block 18, and the second piston plate 17 upwards. At this time, the gas collection box 15 is under negative pressure, and the gas will enter the gas collection box 15 through the air inlet pipe 16. This cycle continues, intermittently injecting gas into the cavity 8. After the gas is injected into the cavity 8, under the pressure of the air, as... Figure 6 and Figure 7 As shown, the first piston plate 11 will drive the push block 10 to move upward in the sliding cavity 9, and the push block 10 will drive the extension rod 12 to extend outward from the embedding rod 6 and embed into the soil, further improving the stability of the embedding rod 6 and thus improving the accuracy of monitoring.

[0025] A first one-way valve 27 is fixedly installed on the surface of the intake pipe 16, and a second one-way valve 28 is fixedly connected to the surface of the connecting pipe 14.

[0026] In this embodiment, a first one-way valve 27 and a second one-way valve 28 are provided. The first one-way valve 27 is a valve that can only allow air to enter the gas collection box 15, and the second one-way valve 28 is a valve that can only allow air to enter the cavity 8. When the gas in the gas collection box 15 is compressed, it will enter the cavity 8 through the connecting pipe 14. When the gas collection box 15 is under negative pressure, the gas will enter the gas collection box 15 through the air inlet pipe 16.

[0027] The first piston plate 11 and the second piston plate 17 are both made of rubber.

[0028] In this embodiment, by setting the material of the first piston plate 11 and the second piston plate 17 to rubber, the sealing performance of the air collection box 15 and the cavity 8 can be effectively improved, so as to facilitate the control of the movement of structures such as the push block 10.

[0029] The top of the pressure bar 19 is fixedly connected to a foot pedal 29, and the top of the foot pedal 29 is fixedly connected to several anti-slip protrusions 30.

[0030] In this embodiment, by setting a foot pedal 29 and an anti-slip protrusion 30, a foot pedal can be provided for the user to drive the lower lever 19, making it easier to drive. At the same time, the anti-slip protrusion 30 can play an anti-slip role.

[0031] A second spring 31 is fixedly connected to the bottom of the pedal 29, and the bottom of the second spring 31 is fixedly connected to the top of the air collection box 15.

[0032] In this embodiment, by setting a second spring 31, when the user releases the pedal 29, the elastic force generated by the second spring 31 will push the pedal 29 upward, thus achieving the function of resetting.

[0033] The top of the embedded rod 6 is fixedly connected to a pressure relief pipe 32, and the top of the pressure relief pipe 32 is threadedly connected to a sealing cap 33.

[0034] In this embodiment, by setting a pressure relief pipe 32 and a sealing cap 33, when it is necessary to remove the embedded rod 6 from the ground, it can be removed by twisting the sealing cap 33. The gas inside the cavity 8 will be discharged through the pressure relief pipe 32, and the elastic force generated by the first spring 13 will drive the push block 10 and the extension rod 12 to reset. At this time, the embedded rod 6 can be removed by moving it upward.

[0035] Example 3: Based on Embodiment 1, the embedded guide mechanism in this embodiment can directly transmit vibration force from the ground by inserting the embedded rod 6 into the ground to obtain effective and accurate data. However, considering that the embedded guide mechanism is inconvenient to carry after being connected to the sensing probe 3, the clamping mechanism in this application includes clamping blocks 20 symmetrically arranged on both sides of the sensing probe 3. A bearing 21 is provided on the side of the clamping block 20 away from the sensing probe 3, and a threaded rod 22 is rotatably connected through the bearing 21. A screwing block 23 is fixedly connected to one end of the threaded rod 22. Two positioning blocks 24 are symmetrically fixedly connected to the top of the positioning plate 4. A threaded hole 25 that cooperates with the threaded rod 22 is opened on one side of the positioning block 24.

[0036] In this embodiment, by setting a clamping mechanism, the sensing probe 3 can be placed in the mounting groove 5, and then the two rotating blocks 23 can be rotated. The rotating blocks 23 will drive the threaded rod 22 to rotate in the threaded hole 25, so that the threaded rod 22 gradually drives the bearing 21 and the clamping block 20 to move closer to the sensing probe 3. The sensing probe 3 is fixed by clamping it with the two clamping blocks 20. When it is necessary to carry it, rotate the screw block 23 in the opposite direction, which is the opposite of the above steps, to release the clamping block 20 from fixing the sensor probe 3 and separate the sensor probe 3 from the positioning plate 4. The split design makes it easy to carry. It should be noted that the movement trajectory of the clamping block 20 can be limited by setting a slider at the bottom of the clamping block 20, which is common knowledge to those skilled in the art, so it will not be elaborated further.

[0037] The clamping block 20 is arc-shaped, and a rubber pad 26 is fixedly connected to its inner wall.

[0038] In this embodiment, by setting the rubber pad 26, the clamping block 20 can be designed in an arc shape, which can effectively improve the fit with the sensing probe 3. At the same time, the rubber pad 26 can also assist in clamping and improve the stability of clamping.

[0039] The working principle and usage process of this invention: The user places the sensor probe 3 in the mounting slot 5, and then rotates the two screwing blocks 23. The screwing blocks 23 will drive the threaded rod 22 to rotate in the threaded hole 25, so that the threaded rod 22 gradually drives the bearing 21 and the clamping block 20 to move closer to the sensor probe 3. The sensor probe 3 is fixed by clamping it with the two clamping blocks 20. Then press down on the positioning plate 4 to allow the conical guide head 7 and the embedded rod 6 to enter the underground of the slope until the bottom of the positioning plate 4 contacts the ground surface and compacts the soil. After the embedding rod 6 is inserted into the ground, the foot can press down on the pedal 29. Pressing the pedal 29 will cause the pressing rod 19, the pressing block 18, and the second piston plate 17 to move downwards, simultaneously compressing the gas in the gas collection box 15. The gas in the gas collection box 15 will enter the cavity 8 through the connecting pipe 14. After releasing the foot on the pedal 29, the elastic force generated by the second spring 31 will push the foot on the pedal 29, the pressing rod 19, the pressing block 18, and the second piston plate 17 upwards. At this time, the gas collection box 15 is under negative pressure, and the gas will enter the gas collection box 15 through the air inlet pipe 16. This cycle continues, intermittently injecting gas into the cavity 8. After the gas is injected into the cavity 8, under the pressure of the air, as... Figure 6 and Figure 7 As shown, the first piston plate 11 will drive the push block 10 to move upward in the sliding cavity 9, and the push block 10 will drive the extension rod 12 to extend outward from the embedded rod 6 and embed into the soil, further improving the stability of the embedded rod 6. When the blasting generates vibration force transmission, the vibration force will be transmitted from the two embedded rods 6 to the positioning plate 4, and then from the positioning plate 4 to the sensing probe 3, thereby monitoring accurate and effective data and improving the accuracy of monitoring.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes the element.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A microseismic monitoring device for mine slopes, characterized in that: The monitor includes a main body (1), a transmission line (2) is plugged into one side of the monitor, a sensing probe (3) is electrically connected to one end of the transmission line (2), and an embedded conduction mechanism is provided at the bottom of the sensing probe (3). The embedded transmission mechanism includes a positioning plate (4), the top of the positioning plate (4) is provided with a mounting groove (5) for use with the sensing probe (3), and both sides of the positioning plate (4) are fixedly connected with an embedded rod (6), and the bottom of the embedded rod (6) is fixedly connected with a conical guide head (7). A clamping mechanism is movably mounted on a positioning plate (4); An inflation mechanism is fixedly mounted on an embedded rod (6).

2. The mine slope microseismic monitoring device according to claim 1, characterized in that: The embedded transmission mechanism also includes a cavity (8) opened inside the embedded rod (6). Several sliding cavities (9) are opened on both sides of the inner wall of the cavity (8). A push block (10) is slidably connected to the inner wall of the sliding cavity (9). A first piston plate (11) is fixedly connected to one side of the push block (10). An extension rod (12) is fixedly connected to the other side of the push block (10). A first spring (13) is sleeved on the surface of the extension rod (12). One end of the first spring (13) is fixedly connected to the inner wall of the sliding cavity (9), and the other end of the first spring (13) is fixedly connected to one side of the push block (10).

3. The mine slope microseismic monitoring device according to claim 2, characterized in that: The inflation mechanism includes a connecting pipe (14) fixedly connected to one side of the embedded rod (6), the connecting pipe (14) being connected to the cavity (8), one end of the connecting pipe (14) being fixedly connected to an air collection box (15), and one side of the air collection box (15) being fixedly connected to an air inlet pipe (16). The gas collection box (15) is provided with a second piston plate (17) inside. A lower pressure block (18) is fixedly connected to the top of the second piston plate (17). A lower pressure rod (19) is fixedly connected to the top of the lower pressure block (18). The top of the lower pressure rod (19) extends through to the top of the gas collection box (15).

4. The mine slope microseismic monitoring device according to claim 1, characterized in that: The clamping mechanism includes clamping blocks (20) symmetrically arranged on both sides of the sensing probe (3). A bearing (21) is provided on the side of the clamping block (20) away from the sensing probe (3), and a threaded rod (22) is rotatably connected through the bearing (21). A screwing block (23) is fixedly connected to one end of the threaded rod (22). Two positioning blocks (24) are symmetrically fixedly connected to the top of the positioning plate (4). A threaded hole (25) is opened on one side of the positioning block (24) to cooperate with the threaded rod (22).

5. The mine slope microseismic monitoring device according to claim 4, characterized in that: The clamping block (20) is arc-shaped and has a rubber pad (26) fixedly connected to its inner wall.

6. The mine slope microseismic monitoring device according to claim 3, characterized in that: A first one-way valve (27) is fixedly installed on the surface of the air intake pipe (16), and a second one-way valve (28) is fixedly connected to the surface of the connecting pipe (14).

7. The mine slope microseismic monitoring device according to claim 3, characterized in that: The first piston plate (11) and the second piston plate (17) are both made of rubber.

8. The mine slope microseismic monitoring device according to claim 3, characterized in that: The top of the pressing rod (19) is fixedly connected to a foot pedal (29), and the top of the foot pedal (29) is fixedly connected to several anti-slip protrusions (30).

9. A mine slope microseismic monitoring device according to claim 8, characterized in that: The bottom of the pedal (29) is fixedly connected to a second spring (31), and the bottom of the second spring (31) is fixedly connected to the top of the air collection box (15).

10. A mine slope microseismic monitoring device according to claim 2, characterized in that: The top of the embedded rod (6) is fixedly connected to a pressure relief pipe (32), and the top of the pressure relief pipe (32) is threadedly connected to a sealing cap (33).

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