An underground mine seismic detection device

Abstract

The application discloses an underground tunnel mine shock detection device, which comprises a base, a monitor, a support and a first buffer, wherein the monitor is fixedly arranged on the base, the support is connected with the base through the first buffer, the top of the support is provided with a second buffer, and the second buffer comprises a fixing seat, a rotating ring one, a rotating ring two and a protective cover, wherein the fixing seat is fixedly arranged on the support, a support rod is fixedly arranged on the fixing seat, a spherical supporting surface is arranged on the support rod, the rotating ring one is rotatably arranged outside the fixing seat, the protective cover is in contact with the spherical supporting surface, the rotating ring two is rotatably arranged at the bottom of the protective cover, the rotating ring two and the rotating ring one are circumferentially hinged with a telescopic rod two, and the telescopic rod two is provided with a spring two outside.

Description

Technical Field

[0001] This invention relates to the field of mine seismic monitoring technology, specifically a mine seismic detection device for underground tunnels. Background Technology

[0002] Mining tremors refer to earthquakes induced by mining. During the underground mining process, due to the influence of local tectonic stress, additional stress from mining, and changes in the earth's stress field, a high stress concentration zone is formed in a local area. Under certain inducing conditions, this stress is released rapidly and violently, causing strong ground shaking and tremors.

[0003] A Chinese patent with publication number CN115047518A discloses an intelligent mine vibration monitoring instrument based on wireless technology. It proposes that most mine vibration monitoring instruments are installed inside mines. Due to the harsh environment inside mines, small stones are generated during mining, causing them to splash and fall, damaging the monitoring instrument and affecting its efficiency and accuracy. This patent proposes to install a protective device on the monitoring instrument. A servo motor drives a connecting rod to rotate, and arc-shaped fixing blocks at both ends of the connecting rod form a protective ring to intercept the splashing stones. Simultaneously, the circular motion of the arc-shaped fixing blocks pushes a circular protrusion upwards, which in turn moves the top rod upwards, assisting in breaking up the stones falling from the top and preventing the accumulation of stones and increased damage.

[0004] The aforementioned patent uses a motor-driven arc-shaped fixing block to form a protective cover for the monitoring instrument. While this effectively blocks the gravel, the vibration generated by the motor's rotation can further affect the accuracy of the monitoring instrument. Moreover, if the motor is damaged after prolonged operation, it will lose its protective function for the monitoring instrument. Furthermore, when the two arc-shaped fixing blocks are damaged while blocking the gravel, they are prone to rotational imbalance, which can generate vibration and further affect the accuracy of the monitoring instrument.

[0005] Therefore, it is necessary to provide an underground tunnel seismic detection device to solve the problems mentioned in the background art. Summary of the Invention

[0006] To achieve the above objectives, the present invention provides the following technical solution: an underground tunnel seismic detection device, comprising a base, a monitoring instrument, a support, and a first buffer, wherein the monitoring instrument is fixedly mounted on the base, the support is connected to the base through the first buffer, and a second buffer is provided on the top of the support;

[0007] The second buffer component includes a fixed base, a first rotating ring, a second rotating ring, and a protective cover. The fixed base is fixedly mounted on the bracket, and a support rod is fixedly mounted on the fixed base. A spherical support surface is provided on the support rod. The first rotating ring is rotatably mounted on the outer side of the fixed base. The protective cover is in contact with the spherical support surface. The second rotating ring is rotatably mounted on the bottom of the protective cover. A second telescopic rod is hinged to the second rotating ring and the first rotating ring in a circumferential array. A second spring is provided on the outer side of the second telescopic rod.

[0008] Preferably, the first buffer component includes a first buffer seat, a second buffer seat, and a buffer plate. The first buffer seat is fixedly connected to the bracket, the second buffer seat is rotatably mounted on the base, and a buffer plate is fixedly mounted on the second buffer seat. A telescopic rod is hinged between the buffer plate and the first buffer seat in a circumferential array, and a spring is provided on the outer side of the telescopic rod.

[0009] Preferably, the protective cover is arc-shaped, and the protective cover is provided with multiple energy dissipation rings from top to bottom, and the energy dissipation rings are composed of multiple energy dissipation mechanisms elastically connected together.

[0010] Preferably, the energy dissipation mechanism includes an energy dissipation rod and an energy dissipation plate, wherein the energy dissipation rod is rotatably mounted on the protective cover;

[0011] The energy dissipation plate is provided with a sealing cavity, the energy dissipation rod is slidably disposed in the sealing cavity, and gas is present between the energy dissipation rod and the sealing cavity.

[0012] Preferably, the energy dissipation plate is arc-shaped, and a buffer pad is fixedly provided on its surface, with the surface of the buffer pad being inclined.

[0013] The energy dissipation plates on the same energy dissipation ring are connected by elastic strips;

[0014] Furthermore, the energy dissipation plate located one level above the protective cover extends beyond the input end of the next level energy dissipation plate.

[0015] Preferably, the protective cover is provided with an airbag at the bottom of the energy dissipation rod, and the energy dissipation rod on the same energy dissipation ring is supported by the airbag.

[0016] Preferably, the top of the protective cover is provided with a top plate via a spring three. The top plate is arc-shaped and extends outward around its perimeter to wrap around the input end of the first-stage energy dissipation plate on the protective cover.

[0017] Compared with the prior art, the present invention provides an underground tunnel seismic detection device, which has the following beneficial effects:

[0018] In this invention, a first and a second buffer are used to passively deflect stones, effectively preventing the buffer components themselves from affecting the monitoring instrument. The second buffer includes an arc-shaped protective cover with an energy-dissipating mechanism connected by elastic strips to form an energy-dissipating ring. These rings are distributed in stages across the protective cover. An energy-dissipating plate deflects the stones, and an energy-dissipating rod is installed on the plate and connected by a sealed cavity, allowing for movement between the plate and the rod. The energy-dissipating rod is supported by an airbag, ensuring that when a stone falls onto the plate, it is initially deflected by the buffer pad. When the energy dissipation plate contacts the stone, it slides slightly along the energy dissipation rod for a second force relief. This impact force is then transmitted to the airbag through the energy dissipation rod for a third force relief. Multiple baffles are inclinedly set on the buffer pad so that when the stone falls, it generates a thrust along the tangential direction of the protective cover surface. This causes the protective cover to deflect and rotate through rotating rings one and two for a fourth force relief. This impact force is then transmitted to the second buffer to eliminate the remaining impact force. This protects the monitoring instrument from the vibration caused by the stone and the protective mechanism, effectively improving the accuracy of the monitoring instrument. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic cross-sectional view of the overall structure in this invention;

[0021] Figure 3 This is a schematic diagram of the energy dissipation mechanism in this invention.

[0022] In the diagram: 1. Base; 2. Monitor; 3. Bracket; 4. First buffer component; 41. Buffer seat one; 42. Buffer seat two; 43. Buffer plate; 44. Telescopic rod one; 45. Spring one; 5. Second buffer component; 51. Fixed seat; 511. Support rod; 52. Rotary ring one; 53. Rotary ring two; 54. Protective cover; 541. Airbag; 542. Spring three; 543. Top plate; 55. Telescopic rod two; 56. Spring two; 57. Energy dissipation mechanism; 571. Energy dissipation rod; 572. Energy dissipation plate; 573. Sealing cavity; 574. Elastic strip; 575. Buffer pad. Detailed Implementation

[0023] Example: Please refer to Figures 1-3 In this embodiment of the invention, an underground tunnel seismic detection device includes a base 1, a monitoring instrument 2, a support 3, and a first buffer 4. The monitoring instrument 2 is fixedly mounted on the base 1, the support 3 is connected to the base 1 through the first buffer 4, and a second buffer 5 is provided on the top of the support 3.

[0024] The second buffer 5 includes a fixed base 51, a first rotating ring 52, a second rotating ring 53, and a protective cover 54. The fixed base 51 is fixedly mounted on the bracket 3. A support rod 511 is fixedly mounted on the fixed base 51. A spherical support surface is provided on the support rod 511. The first rotating ring 52 is rotatably mounted on the outside of the fixed base 51. The protective cover 54 is in contact with the spherical support surface. The second rotating ring 53 is rotatably mounted on the bottom of the protective cover 54. A second telescopic rod 55 is hinged in a circumferential array between the second rotating ring 53 and the first rotating ring 52. A second spring 56 is provided on the outside of the second telescopic rod 55.

[0025] During implementation, the monitor 2, the first buffer 4, and the second buffer 5 are fixedly installed on the roadway via the base 1. When a stone falls, it first contacts the energy dissipation mechanism 57. The energy dissipation plate 572 and the buffer pad 575 on the energy dissipation plate 572 eliminate the impact force of the stone for the first time. Then, the energy dissipation plate 572 slides along the energy dissipation rod 571 through the sealing cavity 573 to eliminate the impact force for the second time. At the same time, the energy dissipation rod 571 deflects under this impact force and squeezes the airbag 541, which eliminates the impact force for the third time. Then, this impact force is transmitted to the protective cover 54 itself, and the second telescopic rod 55 and the second spring 56 eliminate the impact force for the fourth time. Then, the remaining impact force is transmitted to the second buffer 4 through the bracket, and the remaining impact force is eliminated by the first telescopic rod 44 and the first spring 45. This prevents the monitor 2 from being damaged by the stone and avoids the vibration caused by the falling stone from affecting the accuracy of the monitor 2.

[0026] In this embodiment, as Figure 1 The first buffer component 4 includes a first buffer seat 41, a second buffer seat 42, and a buffer plate 43. The first buffer seat 41 is fixedly connected to the bracket 3. The second buffer seat 42 is rotatably mounted on the base 1. A buffer plate 43 is fixedly mounted on the second buffer seat 42. A telescopic rod 44 is hinged in a circumferential array between the buffer plate 43 and the first buffer seat 42. A spring 45 is provided on the outer side of the telescopic rod 44.

[0027] During implementation, when the impact force on the bracket 3 is transmitted to the buffer seat 41, the telescopic rod can eliminate this impact force by deflection, contraction or extension. Then, under the action of the spring 45, the buffer seat 41 is placed in the balance device, and the buffer seat 42 is rotated so that the unbalanced force between the buffer seat 45 and the buffer seat 42 can be balanced more quickly and effectively. This further prevents the impact force from being transmitted to the base 1 and the monitor 2, effectively improving the monitoring accuracy of the monitor 2.

[0028] In this embodiment, as Figure 2The protective cover 54 is arc-shaped, and multiple energy-dissipating rings are provided on the protective cover 54 from top to bottom. The energy-dissipating rings are composed of multiple energy-dissipating mechanisms 57 elastically connected together.

[0029] In this embodiment, as Figure 3 The energy dissipation mechanism 57 includes an energy dissipation rod 571 and an energy dissipation plate 572, wherein the energy dissipation rod 571 is rotatably mounted on the protective cover 54;

[0030] The energy dissipation plate 572 is provided with a sealing cavity 573, and the energy dissipation rod 571 is slidably disposed in the sealing cavity 573. Furthermore, gas is present between the energy dissipation rod 571 and the sealing cavity 573.

[0031] Specifically, a sealing cavity 573 is provided between the energy dissipation plate 572 and the energy dissipation rod 571, and gas is stored in the sealing cavity 573, so that the energy dissipation plate 572 and the energy dissipation rod 571 are movably connected, so that the energy dissipation plate 572 can further eliminate the impact force of the stone by sliding, and after elimination, it can be reset by air pressure.

[0032] In this embodiment, the energy dissipation plate 572 is arc-shaped, and a buffer pad 575 is fixedly provided on its surface. The surface of the buffer pad 575 is inclined.

[0033] The energy dissipation plates 572 on the same energy dissipation ring are connected by elastic strips 574;

[0034] Furthermore, the energy dissipation plate 572 located one level above the protective cover 54 extends beyond the input end of the next level energy dissipation plate 54.

[0035] In this embodiment, as Figure 3 The protective cover 54 is provided with an airbag 541 at the bottom of the energy dissipation rod 571, and the energy dissipation rod 571 on the same energy dissipation ring is supported by the airbag 541.

[0036] Specifically, the surface of the buffer pad 575 is inclined so that when a stone falls, it can exert a thrust along the tangential direction of the protective cover 54 through this inclined surface. This causes the protective cover 54 to rotate along the spherical support surface of the support rod 511 via the first rotating ring 52 and the second rotating ring 53, further dispersing and eliminating this impact force. The energy dissipation plates 572 are connected by elastic strips 574 to form an energy dissipation ring, allowing the impact force to be dispersed to each energy dissipation plate 572, further improving its buffering effect. Moreover, the energy dissipation plates 572 are arranged in stages to cover the entire protective cover 54, ensuring that each part of the protective cover 54 can block the stone. In addition, the energy dissipation rods 571 on the same energy dissipation ring are supported by the same airbag 541. When one of the energy dissipation rods 571 deflects and squeezes the airbag 541, the gas inside the airbag 541 is compressed and diffuses to various parts of the airbag 541, further dispersing this compressive force and improving its buffering capacity.

[0037] In this embodiment, as Figure 2 The top of the protective cover 54 is provided with a top plate 543 via a spring 542. The top plate 543 is arc-shaped and extends outward around its perimeter to wrap around the input end of the first-stage energy dissipation plate 572 on the protective cover 54.

[0038] In summary, when implemented, this invention utilizes the energy dissipation mechanism 57, the second buffer 5, and the first buffer 4 to progressively eliminate the impact force generated by the stone. When the stone falls, it first contacts the energy dissipation plate 572 and the buffer pad 575 for the first elimination. Subsequently, the impact force is transmitted to the energy dissipation rod 571, where the sliding of the energy dissipation plate 572 performs the second elimination. Simultaneously, the energy dissipation rod 571 deflects and squeezes the airbag 541 for the third elimination. Then, the impact force is eliminated a fourth time through the protective cover 54, the second telescopic rod 55, and the second spring 56. Finally, the second buffer 4 eliminates the remaining impact force. This ensures that the monitoring instrument is not damaged by the stone and further ensures that the vibration generated by the stone does not affect the monitoring accuracy of the monitoring instrument 2. Moreover, this protection method is passive protection, which only provides protection and buffering when impacted by the stone and does not affect the monitoring instrument 2 itself.

[0039] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A seismic detection device for underground tunnels, characterized in that: It includes a base (1), a monitor (2), a bracket (3) and a first buffer (4). The monitor (2) is fixedly mounted on the base (1). The bracket (3) is connected to the base (1) through the first buffer (4). A second buffer (5) is provided on the top of the bracket (3). The first buffer component (4) includes a buffer seat one (41), a buffer seat two (42), and a buffer plate (43). The buffer seat one (41) is fixedly connected to the bracket (3). The buffer seat two (42) is rotatably mounted on the base (1). The buffer plate (43) is fixedly mounted on the buffer seat two (42). The buffer plate (43) and the buffer seat one (41) are circumferentially hinged together with a telescopic rod one (44). A spring one (45) is provided on the outside of the telescopic rod one (44). The second buffer (5) includes a fixed base (51), a rotating ring one (52), a rotating ring two (53), and a protective cover (54). The fixed base (51) is fixedly mounted on the bracket (3). A support rod (511) is fixedly mounted on the fixed base (51). A spherical support surface is provided on the support rod (511). A rotating ring one (52) is rotatably mounted on the outside of the fixed base (51). The protective cover (54) is in contact with the spherical support surface. A rotating ring two (53) is rotatably mounted at the bottom of the protective cover (54). A telescopic rod two (55) is hinged in a circular array between the rotating ring two (53) and the rotating ring one (52). A spring two (56) is provided on the outside of the telescopic rod two (55). The protective cover (54) is provided with multiple energy-dissipating rings from top to bottom, and the energy-dissipating rings are elastically connected by multiple energy-dissipating mechanisms (57); The energy dissipation mechanism (57) includes an energy dissipation rod (571) and an energy dissipation plate (572), wherein the energy dissipation rod (571) is rotatably mounted on the protective cover (54); The energy dissipation plate (572) is provided with a sealing cavity (573), and the energy dissipation rod (571) is slidably disposed in the sealing cavity (573), and gas is present between the energy dissipation rod (571) and the sealing cavity (573).

2. The underground tunnel seismic detection device according to claim 1, characterized in that: The protective cover (54) is arc-shaped.

3. The underground tunnel seismic detection device according to claim 1, characterized in that: The energy dissipation plate (572) is arc-shaped, and a buffer pad (575) is fixedly provided on its surface. The surface of the buffer pad (575) is inclined. The energy dissipation plates (572) on the same energy dissipation ring are connected by elastic strips (574); The energy dissipation plate (572) located one level above the protective cover (54) extends beyond the input end of the next level energy dissipation plate (572).

4. The underground tunnel seismic detection device according to claim 1, characterized in that: An airbag (541) is provided on the protective cover (54) at the bottom of the energy dissipation rod (571), and the energy dissipation rod (571) on the same energy dissipation ring is supported by the airbag (541).

5. The underground tunnel seismic detection device according to claim 1, characterized in that: The top of the protective cover (54) is provided with a top plate (543) via a spring three (542). The top plate (543) is arc-shaped and extends outward around the perimeter to wrap around the input end of the first-stage energy dissipation plate (572) on the protective cover (54).

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