A sinking type fixed device for microseismic network layout at a tunneling face

Abstract

The utility model discloses a kind of tunneling working face microseismic network sinking type layout fixing device, belong to coal mine tunneling safety monitoring technical field. Including sinking base and protective cover, sinking base is cylindrical, protective cover is covered in the top surface of sinking base, and between sinking base and sinking base is connected with several bolts, the inside of sinking base is distributed with four sets of clamps equidistantly, the side of sinking base is provided with four sets of through holes equidistantly, threaded sleeve is sealingly connected in through hole, the inside of threaded sleeve is threadedly engaged with threaded rod, threaded rod and clamp one-to-one correspondence, and one end of threaded rod and the back of clamp are rotatably connected, the other end of threaded rod is coaxially connected with knob, and knob is located at the outside of sinking base;The technical scheme ensures that microseismic sensor can stably collect microseismic signal, avoids monitoring failure, and provides reliable data support for construction safety decision.

Description

Technical Field

[0001] This utility model relates to the field of coal mine tunneling safety monitoring technology, specifically a sunken deployment and fixing device for a micro-vibration network at the tunneling face. Background Technology

[0002] In coal mine and tunnel excavation projects, microseismic networks are a core technical means for monitoring the stability of surrounding rock and providing early warning of geological hazards such as rockbursts. They capture microseismic signals generated by rock fracturing by deploying microseismic sensors, providing data support for construction safety decisions. The harsh environment of the tunneling face, characterized by severe vibrations, high dust levels, confined spaces, and complex geological conditions, places stringent requirements on the deployment and fixation of microseismic sensors.

[0003] Currently, traditional fixing methods mostly use simple brackets for support or place them directly on the ground, lacking reliable limiting and fixing structures. Factors such as equipment vibration, personnel trampling, and impact from falling rocks and rubble at the tunneling face can easily cause the sensor to shift, tilt, or even tip over, resulting in deviations in the acquisition of microseismic signals and, in severe cases, monitoring failure. Utility Model Content

[0004] The purpose of this utility model is to provide a sunken deployment and fixing device for a micro-vibration network at a tunneling face, so as to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: A submerged deployment and fixing device for a micro-vibration network at a tunneling face includes a submerged base and a protective cover plate. The submerged base is cylindrical, and the protective cover plate covers the top surface of the submerged base and is connected to the submerged base by several bolts. Four sets of clamping plates are evenly distributed circumferentially inside the submerged base. Four sets of through holes are evenly distributed circumferentially on the side of the submerged base. Threaded sleeves are sealed within the through holes, and threaded rods are threadedly engaged with the internal threads of the threaded sleeves. Each threaded rod corresponds to one clamping plate, and one end of each threaded rod is rotatably connected to the back of a clamping plate. The other end of each threaded rod is coaxially connected to a knob located outside the submerged base. The sunken base and protective cover are connected by bolts, forming a closed protective space for the internal micro-vibration sensor, preventing personnel from stepping on it or direct impact from falling rocks and debris. Four sets of clamping plates, threaded rods, threaded sleeves, and knobs work together. Adjusting the knobs drives the threaded rods to move axially along the threaded sleeves, thereby causing the clamping plates to move closer or further apart synchronously. This can accommodate micro-vibration sensors of different sizes, achieving precise positioning and fixing of the sensors, preventing displacement or tilting due to equipment vibration, and ensuring the accuracy of micro-vibration signal acquisition. The threaded sleeves are sealed to the through holes of the sunken base, reducing the entry of dust and moisture into the device through the through holes and preventing corrosion of the sensors.

[0006] Furthermore, a connecting sleeve is installed on the back of the clamping plate, and a connecting shaft is rotatably connected to the connecting sleeve through a bearing. The threaded rod and the connecting shaft are coaxially connected. The connecting sleeve on the back of the clamping plate and the bearing inside cooperate with the connecting shaft so that when the threaded rod rotates, it only drives its own axial movement and does not drive the clamping plate to rotate synchronously. This avoids friction damage to the sensor surface caused by the rotation of the clamping plate, and at the same time ensures that the clamping plate always clamps the sensor in a stable posture, improves the stability of the fixation, and ensures that the sensor's signal acquisition is not subject to mechanical interference.

[0007] Furthermore, a bellows is rotatably connected between one end of the knob and the threaded sleeve, and between the other end of the connecting sleeve and the threaded sleeve. The bellows covers the outside of the threaded rod and is rotatably connected to the knob, the threaded sleeve, the connecting sleeve, and the threaded sleeve, respectively. It completely covers the outside of the threaded rod, which can prevent dust and moisture from the tunneling face from contacting the threaded structure of the threaded rod and the threaded sleeve, avoid the threads from getting stuck due to dust accumulation and corrosion, ensure the smooth transmission between the threaded rod and the threaded sleeve, and extend the service life of the device.

[0008] Furthermore, a sealing ring is installed on the bottom surface of the protective cover plate. The sealing ring fits against the inner wall of the sunken base. The sealing ring on the bottom surface of the protective cover plate fits tightly against the inner wall of the sunken base, which can enhance the sealing performance between the protective cover plate and the sunken base. This further prevents dust and moisture from entering the device from the connection between the two, avoids dust adhering to the sensor surface and affecting the signal acquisition accuracy, and prevents moisture from corroding the internal electronic components of the sensor, thus ensuring the stable operation of the sensor.

[0009] Furthermore, the front of the clamp is an arc-shaped groove, and a rubber plate is adhered inside the arc-shaped groove. The arc-shaped groove on the front of the clamp fits the shape of the sensor better, which can increase the contact area between the clamp and the sensor and improve the clamping firmness. The rubber plate inside the arc-shaped groove is elastic, which avoids surface damage caused by hard contact between the clamp and the sensor and protects the integrity of the sensor.

[0010] Furthermore, a Velcro closure is fixedly connected to the back of the rubber plate, and a Velcro closure is fixedly connected to the inside of the arc-shaped groove. The Velcro closure and the Velcro closure are bonded together, and the rubber plate is bonded to the Velcro closure in the arc-shaped groove through the Velcro closure, so that the rubber plate can be detached and replaced. When the rubber plate wears or ages due to long-term use, resulting in a decrease in the cushioning effect or inability to effectively fit the sensor, a new rubber plate can be quickly removed and replaced without replacing the entire clamping plate, reducing the maintenance cost of the device, while ensuring that the clamping plate's cushioning and protection effect on the sensor is always in good condition.

[0011] Furthermore, the bottom surface of the sinking base is provided with several water-permeable holes. These holes can promptly drain water that accumulates inside the device due to a humid environment or water vapor penetration, preventing water from accumulating inside the sinking base and causing damage to the bottom of the sensor. At the same time, they maintain a dry environment inside the device, reducing the corrosion of sensor electronic components by water vapor and ensuring stable operation of the sensor for a long time in a humid tunneling working face environment.

[0012] Compared with existing technologies, the beneficial effects of this utility model are as follows: This sunken deployment and fixing device for microseismic monitoring networks at tunneling faces solves the problems of sensor displacement, tilting, and tipping caused by the harsh environment at tunneling faces, as well as sensor erosion caused by dust and moisture, as described in the background technology. Specifically, the sunken base, protective cover plate, and sealing ring work together to form a closed protective space, combined with the corrugated pipe protecting the threaded rod, preventing dust and moisture from entering and reducing sensor erosion. Four sets of clamping plates, threaded rods, threaded sleeves, and knobs work together, using arc-shaped grooves and rubber plates to increase the contact area and buffer vibration, achieving stable sensor fixation and preventing sensor displacement and tilting caused by equipment vibration, personnel trampling, and impact from gravel. Connecting sleeves and connecting shafts ensure smooth movement of the clamping plates, while Velcro tabs and Velcro nuts facilitate rubber plate replacement, and permeable holes promptly drain accumulated water, further improving the practicality and stability of the device. Through the cooperation of these components, the microseismic sensors can stably acquire microseismic signals, avoiding monitoring failure and providing reliable data support for construction safety decisions. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the sunken layout and fixing device for the micro-vibration network at the tunneling face disclosed in an embodiment of the present utility model. Figure 2 This is a first exploded structural schematic diagram of the sunken layout and fixing device for the micro-vibration network at the tunneling face disclosed in this embodiment of the utility model. Figure 3 This is a cross-sectional structural schematic diagram of the sunken layout and fixing device for the micro-vibration network at the tunneling face disclosed in this embodiment of the utility model. Figure 4 for Figure 3 Enlarged schematic diagram of structure A in the middle; Figure 5 This is a second exploded structural diagram of the sunken layout and fixing device for the micro-seismic network at the tunneling face disclosed in an embodiment of this utility model.

[0014] In the diagram: 1. Sinking base; 2. Protective cover plate; 3. Knob; 4. Bolt; 5. Water permeable hole; 6. Clamping plate; 7. Rubber plate; 8. Threaded sleeve; 9. Threaded rod; 10. Velcro; 11. Connecting sleeve; 12. Connecting shaft; 13. Corrugated pipe. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5 This utility model provides a technical solution: a sinking-type deployment and fixing device for a micro-vibration network in a tunneling face, comprising a sinking base 1 and a protective cover plate 2. The sinking base 1 is cylindrical, and the protective cover plate 2 covers the top surface of the sinking base 1 and is connected to the sinking base 1 by several bolts 4. Four sets of clamping plates 6 are evenly distributed circumferentially inside the sinking base 1, and four sets of through holes are evenly distributed circumferentially on the side of the sinking base 1. Threaded sleeves 8 are sealed and connected inside the through holes, and threaded rods 9 are threadedly engaged inside the threaded sleeves 8. The threaded rods 9 correspond one-to-one with the clamping plates 6, and one end of the threaded rod 9 is rotatably connected to the back of the clamping plate 6. The other end of the threaded rod 9 is coaxially connected to a knob 3, and the knob 3 is located in the sinking base 1. Outside the base 1, first fix the sinking base 1 at the preset position on the tunneling face. Then place the micro-vibration sensor at the center inside the sinking base 1. Then rotate the knob 3 located outside the sinking base 1. The knob 3 drives the threaded rod 9 connected to the coaxial axis to rotate. Since the threaded rod 9 is threadedly engaged with the threaded sleeve 8 in the through hole, the threaded rod 9 moves inward along the axial direction of the threaded sleeve 8 during rotation, thereby pushing the clamping plate 6 connected to it to move closer to the sensor. The four sets of knobs 3 are adjusted in sequence so that the four sets of clamping plates 6 clamp the sensor synchronously. Finally, cover the top surface of the sinking base 1 with the protective cover plate 2 and fasten the protective cover plate 2 to the sinking base 1 with bolts 4 to complete the installation and fixing of the sensor.

[0017] As an embodiment of this utility model, a connecting sleeve 11 is further installed on the back of the clamping plate 6. A connecting shaft 12 is rotatably connected to the connecting sleeve 11 through a bearing. The threaded rod 9 and the connecting shaft 12 are coaxially connected. When the knob 3 drives the threaded rod 9 to rotate, the threaded rod 9 transmits force through the coaxially connected connecting shaft 12. Since the connecting shaft 12 is rotatably connected to the connecting sleeve 11 through the bearing, the connecting shaft 12 only moves axially with the threaded rod 9 and will not drive the connecting sleeve 11 and the clamping plate 6 fixed thereto to rotate. This allows the clamping plate 6 to move smoothly only radially along the sinking base 1 under the push of the threaded rod 9 until it is clamped against the sensor surface.

[0018] As an embodiment of this utility model, a bellows 13 is rotatably connected between one end of the knob 3 and the threaded sleeve 8, and between the other end of the connecting sleeve 11 and the threaded sleeve 8. The bellows 13 covers the outside of the threaded rod 9. When the threaded rod 9 moves axially along the threaded sleeve 8, the bellows 13 near the knob 3 extends and retracts with the change in distance between the knob 3 and the threaded sleeve 8. The bellows 13 near the connecting sleeve 11 extends and retracts synchronously with the change in distance between the connecting sleeve 11 and the threaded sleeve 8. Since the bellows 13 is rotatably connected to both ends of the components, it will not affect the rotation of the knob 3 and the axial movement of the threaded rod 9. It always maintains the sealing protection of the connection between the threaded rod 9 and the threaded sleeve 8, and isolates dust and moisture.

[0019] As an embodiment of this utility model, a sealing ring is further installed on the bottom surface of the protective cover plate 2. The sealing ring fits against the inner wall of the sinking base 1. When the protective cover plate 2 and the sinking base 1 are tightened by the bolts 4, the sealing ring on the bottom surface of the protective cover plate 2 is squeezed by the top surface of the sinking base 1. After elastic deformation, it fits tightly against the inner wall of the sinking base 1, filling the gap between the protective cover plate 2 and the sinking base 1, forming a sealing barrier, preventing external dust and moisture from entering the device through the gap, and providing double protection for the sensor.

[0020] As an embodiment of this utility model, the front of the clamping plate 6 is an arc-shaped groove, and a rubber plate 7 is adhered in the arc-shaped groove. When the clamping plate 6 approaches the sensor, the arc-shaped groove on the front of the clamping plate 6 first initially fits against the sensor surface. As the threaded rod 9 continues to advance, the rubber plate 7 in the arc-shaped groove fully contacts and is squeezed against the sensor surface. The rubber plate 7 undergoes elastic deformation, completely filling the gap between the arc-shaped groove and the sensor surface, thereby increasing the friction and improving the fixing effect.

[0021] As an embodiment of this utility model, the back of the rubber plate 7 is further fixedly connected with a Velcro tack, and the inside of the arc-shaped groove is fixedly connected with a Velcro nut 10. The Velcro tack and the Velcro nut are adhesive. When installing the rubber plate 7, align the Velcro tack on the back of the rubber plate 7 with the Velcro nut 10 in the arc-shaped groove, press the rubber plate 7 to make the two stick tightly together, and the rubber plate 7 can be fixed. When the rubber plate 7 needs to be replaced, simply tear the rubber plate 7 outward to separate the Velcro tack from the Velcro nut 10, and the old rubber plate 7 can be removed. Then, follow the installation steps to paste the new rubber plate 7. The operation is simple and convenient and does not affect the normal use of the device.

[0022] As an embodiment of this utility model, the bottom surface of the sinking base 1 is further provided with several water-permeable holes 5. When water vapor in the tunneling working face environment enters the device, or when a small amount of water accumulates due to slight leakage in the sealing part, the water accumulates to the bottom of the sinking base 1 under the action of gravity and is quickly discharged to the outside of the device through the water-permeable holes 5 on the bottom surface, preventing the water from staying inside for a long time, avoiding short circuits or component corrosion caused by the sensor coming into contact with the water, and maintaining the normal working state of the sensor.

[0023] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A submerged deployment and fixing device for a micro-vibration network at a tunneling face, characterized in that, The device includes a sinking base (1) and a protective cover plate (2). The sinking base (1) is cylindrical. The protective cover plate (2) covers the top surface of the sinking base (1) and is connected to the sinking base (1) by several bolts (4). The sinking base (1) has four sets of clamping plates (6) distributed equidistantly in the circumference. The sinking base (1) has four sets of through holes equidistantly in the circumference on the side. The through holes are sealed with threaded sleeves (8). The threaded sleeves (8) are threadedly connected to threaded rods (9). The threaded rods (9) correspond one-to-one with the clamping plates (6). One end of the threaded rods (9) is rotatably connected to the back of the clamping plates (6). The other end of the threaded rods (9) is coaxially connected to a knob (3), and the knob (3) is located outside the sinking base (1).

2. The micro-vibration network sinking and fixing device for tunneling faces according to claim 1, characterized in that, A connecting sleeve (11) is installed on the back of the clamp (6), and a connecting shaft (12) is rotatably connected inside the connecting sleeve (11) via a bearing. The threaded rod (9) and the connecting shaft (12) are coaxially connected.

3. The micro-vibration network sinking and fixing device for a tunneling face according to claim 2, characterized in that, A bellows (13) is rotatably connected between one end of the knob (3) and the threaded sleeve (8), and between the other end of the connecting sleeve (11) and the threaded sleeve (8). The bellows (13) covers the outside of the threaded rod (9).

4. The micro-vibration network sinking and fixing device for a tunneling face according to claim 1, characterized in that, A sealing ring is installed on the bottom surface of the protective cover plate (2), and the sealing ring fits against the inner wall of the sunken base (1).

5. The micro-vibration network sinking and fixing device for a tunneling face according to claim 1, characterized in that, The front of the clamp (6) is an arc-shaped groove, and a rubber plate (7) is adhered in the arc-shaped groove.

6. The micro-vibration network sinking and fixing device for a tunneling face according to claim 5, characterized in that, The back of the rubber sheet (7) is fixedly connected with a Velcro strip, and the inside of the arc-shaped groove is fixedly connected with a Velcro strip (10), and the Velcro strip and the Velcro strip are glued together.

7. The micro-vibration network sinking and fixing device for a tunneling face according to claim 1, characterized in that, The bottom surface of the sunken base (1) is provided with several water-permeable holes (5).

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