Mechanical structure infrasound sensing monitoring device for geological disaster early warning

Abstract

The utility model discloses a geological disaster early warning with mechanical structure infrasound sensing monitoring device belongs to geological disaster monitoring technical field. The technical problem to be solved is that the existing infrasound sensing monitoring device is easy to be interfered by wind noise caused by strong wind direct blowing, and sandstone and dust are easy to block after entering and cannot be cleaned automatically. Technical scheme main points: including pillar, the fixed hoop equipment box is equipped on the outer wall of pillar, and the mounting plate is fixedly arranged in the equipment box, and the telemetry terminal and the infrasound sensor are arranged on the mounting plate; A plurality of blow-off plates are provided in the equipment box along the height, the blow-off plate comprises a W wave plate and a base, the W wave plate is provided with a through hole at the bottom end and is arranged on the inner wall of the equipment box, and the base is matched with the through hole; The collecting disc is fixedly arranged in the equipment box and located below the blow-off plate. The device forms a bending channel through the blow-off plate to avoid the direct blowing of the sensor, cooperates with the base to intercept sandstone, and realizes the automatic cleaning of sandstone through the linkage of the rotating plate and the base. L-shaped drain pipe guides sandstone to be discharged and prevents rainwater from flowing back, and is mainly used for early warning of geological disasters.

Description

Technical Field

[0001] This utility model relates to the field of geological disaster monitoring technology, and in particular to a mechanical structure infrasound sensing monitoring device for geological disaster early warning. Background Technology

[0002] Early warning of geological disasters such as landslides, collapses, and debris flows is crucial for protecting the lives and property of residents in mountainous areas and reducing disaster losses. Infrasound is a vibration wave with a frequency below 20Hz generated when a geological body becomes unstable (such as the expansion of soil fissures or rock friction). Due to its long propagation distance and strong penetration, it is often used as a source of early warning monitoring signals. Infrasound sensors contain a sensitive diaphragm and a piezoelectric element. When infrasound acts on the sensor, the diaphragm will undergo a slight deformation with the infrasound vibration. This deformation causes the piezoelectric element to deform synchronously, and the piezoelectric element will generate a weak charge. After the charge is converted, it forms a transmittable electrical signal, which is then received and processed by subsequent equipment.

[0003] Many infrasound sensor monitoring devices are deployed in complex outdoor environments. Strong winds in the wild can easily blow directly onto the infrasound sensors, causing wind noise to mix into the infrasound signals captured by the sensors, affecting the monitoring accuracy. Some devices have internal structures to prevent direct wind blowing, such as honeycomb panels, but sand, dust and other particles blown by the wind can still enter the device with the airflow. These particles will stay inside and can easily cause blockages over time. Moreover, they cannot be automatically cleaned, which brings a lot of trouble to the maintenance of the device.

[0004] To address the aforementioned issues, an infrasound sensor monitoring device was designed that can effectively prevent wind and sand interference and achieve automatic sand and gravel removal, thereby improving the reliability of geological disaster early warning and the ease of operation and maintenance of the device. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as susceptibility to wind noise interference from strong winds and the inability to automatically clean up blockages caused by sand, gravel, and dust. This invention proposes a mechanical structure infrasound sensing and monitoring device for geological disaster early warning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A mechanical structure infrasound sensor monitoring device for geological disaster early warning, comprising a support column;

[0008] The equipment box is fixed to the outer wall of the support column by fixing hoops;

[0009] The equipment includes a telemetry terminal and an infrasound sensor. A mounting plate is fixed inside the equipment box, and both the telemetry terminal and the infrasound sensor are mounted on the mounting plate.

[0010] Multiple anti-blowing plates are arranged at equal intervals along the height of the equipment box and located on one side of the infrasound sensor. Each anti-blowing plate includes a W-shaped plate and a base. The two ends of the W-shaped plate are fixed to the inner wall of the equipment box, and a through hole is opened at its bottom end. The base is located at the bottom of the W-shaped plate and cooperates with the through hole.

[0011] The collection tray is fixed to the inner wall of the equipment box and located below the blow shield;

[0012] The airflow flows along the bent channel formed by the anti-blow plate to avoid directly blowing on the infrasound sensor, and the W-shaped wave plate cooperates with the base to intercept sand and gravel.

[0013] In one possible design, a solar panel is also included, mounted on top of a support column. The equipment housing contains a battery that works in conjunction with the solar panel, telemetry terminal, and infrasound sensor, providing continuous power to the device.

[0014] In one possible design, the equipment box has multiple ventilation holes on its door, which correspond to and cooperate with the channels formed by multiple W-shaped corrugated plates to allow airflow into the equipment box.

[0015] In one possible design, multiple bases are fixed to the same connecting frame at the ends on the same side. Guide rods are fixed on both sides of the inner wall of the equipment box. The connecting frame is slidably sleeved on the outer wall of the guide rod on the same side. A compression spring is sleeved on the outer wall of the guide rod. The two ends of the compression spring abut against the bottom of the connecting frame and the protrusion on the outer wall of the guide rod, respectively, to provide a restoring force.

[0016] In one possible design, two rotating plates are also included. Mounting brackets are fixed on both sides of the outer wall of the equipment box. The two rotating plates are rotatably mounted in the two mounting brackets. Two sliding holes are opened on the outer wall of the equipment box. A connecting rod is fixed on the side wall of the connecting bracket. The connecting rod extends into the mounting bracket through the sliding hole on the same side. A horizontal plate is fixed on the outer wall of the connecting rod inside the mounting bracket. The horizontal plate is located below the rotating plate on the same side. Two limiting protrusions are provided on its top. The rotating plate is inclined and its bottom end abuts against the top of the horizontal plate and is located between the two limiting protrusions. When the wind blows, the rotating plate can push the horizontal plate and drive the connecting bracket to move down.

[0017] In one possible design, a protective plate is fixed to the outer wall of the connecting rod, and the protective plate is fitted to the outer wall of the equipment box to cover the sliding hole to prevent rainwater from entering.

[0018] In one possible design, the top of the collection tray is set as an inclined groove facing both sides, and two drainage holes are opened on the outer wall of the equipment box. The two drainage holes are respectively connected to the inclined groove of the collection tray. L-shaped drainage pipes are fixed on both sides of the outer wall of the equipment box. The horizontal section of the L-shaped drainage pipe is connected to the drainage hole on the same side, and the vertical section faces downward to guide the sand and gravel out and prevent rainwater backflow.

[0019] In this application, when the wind enters the equipment box through the ventilation hole, it will flow along the bent channel composed of multiple anti-blowing plates. The W wave plate will buffer the wind to prevent it from blowing directly onto the infrasound sensor, and the sand and other particles it carries will also be intercepted and kept on the bottom base to prevent them from contacting the internal equipment.

[0020] When the wind blows the rotating plate and makes it rotate, the bottom of the rotating plate will push the horizontal plate downward, which will cause the connecting rod to move downward. The connecting rod will move the connecting frame downward along the sliding hole. The connecting frame will cause multiple bases to move downward, so that they are separated from the bottom of the W-shaped plate. At this time, the sand and gravel inside the W-shaped plate will slide down until they fall into the collection pan below. Then the sand and gravel will be discharged through the drain hole along the inclined groove at the top of the collection pan.

[0021] When the wind speed is insufficient to overcome the elastic force, the connecting frame will be reset by the compression spring, causing it to drive the base to re-fit with the corresponding W-shaped wave plate, while the horizontal plate will also move upwards simultaneously, causing it to push the rotating plate to rotate and reset.

[0022] In this utility model, the mechanical structure infrasound sensor monitoring device for geological disaster early warning automatically triggers the rotating plate by wind power, which can drive the base to move and open the through hole through mechanical linkage, so that the trapped sand and gravel can fall into the collection plate and be discharged automatically without the need for regular manual cleaning. The setting of the compression spring can realize the automatic reset of the base and the rotating plate, reducing the difficulty and cost of field maintenance.

[0023] In this utility model, the mechanical structure infrasound sensor monitoring device for geological disaster early warning, through the L-shaped pipe, can ensure the discharge of particles such as sand and gravel, while also preventing the reverse entry of external rainwater or foreign objects.

[0024] In this invention, during use, the W-shaped wave plate, composed of multiple sets of anti-blow plates forming a bending channel, can guide the airflow entering the equipment box multiple times, preventing the airflow from directly blowing on the infrasound sensor. This reduces wind noise interference with the infrasound signal. At the same time, the W-shaped wave plate, in conjunction with the base, can trap sand and gravel particles in the airflow, preventing particles from entering the interior, and can automatically discharge foreign objects, preventing blockage caused by prolonged drainage. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the main structure of a mechanical infrasound sensor monitoring device for geological disaster early warning proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the equipment box of a mechanical infrasound sensor monitoring device for geological disaster early warning proposed in this utility model;

[0027] Figure 3This utility model Figure 2 Enlarged view of the structure of section A;

[0028] Figure 4 This is a schematic diagram of the planar structure of the infrasound sensor monitoring device for geological disaster early warning proposed in this utility model, which is a blow-proof plate.

[0029] Figure 5 This is an exploded structural diagram of a mechanical infrasound sensor monitoring device for geological disaster early warning proposed in this utility model;

[0030] Figure 6 This utility model Figure 5 Enlarged view of the structure of section B.

[0031] In the diagram: 1. Support column; 2. Equipment box; 3. Solar panel; 4. Communication mechanism; 5. Telemetry terminal; 6. Mounting plate; 7. Infrasound sensor; 8. W-shaped corrugated plate; 9. Base; 10. Connecting frame; 11. Guide rod; 12. Collection tray; 13. Ventilation hole; 14. Mounting frame; 15. Rotating plate; 16. Protective plate; 17. Connecting rod; 18. Limiting protrusion; 19. Horizontal plate; 20. Drain hole; 21. L-shaped pipe. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0033] In one embodiment: Reference Figure 1-3 A monitoring device includes: a support column 1, which is vertically fixed to the ground at the monitoring point (such as an open area around a landslide body), and its height is set according to the monitoring requirements (usually 2-3m). It is used to support the equipment box 2, the solar panel 3 and the communication mechanism 4. The communication mechanism 4 is fixed to the bracket on the outer wall of the support column 1 by bolts. The model is RT-1000CS.

[0034] Equipment box 2 is a rectangular metal box (made of stainless steel), which is fixed to the outer wall of support column 1 by two semi-circular fixing hoops. The fixing hoops are welded to the outer wall of equipment box 2 and are detachably connected by bolts. Equipment box 2 has an openable door on one side (connected to the box body by a hinge). Multiple strip-shaped ventilation holes 13 are opened on the surface of the door. The number of ventilation holes 13 is consistent with the number of channels formed between the anti-blow plates and their positions correspond one-to-one, ensuring that external airflow can enter the interior of equipment box 2 through ventilation holes 13.

[0035] Inside the equipment box 2, a rectangular mounting plate 6 is welded. The telemetry terminal 5 (with a built-in data acquisition and analysis module) is fixed to the lower side of the mounting plate 6 with screws. The infrasound sensor 7 (selected as a piezoelectric infrasound sensor) is fixed to the upper side of the mounting plate 6 with screws, and the signal input end of the infrasound sensor 7 faces the side of the blow-proof plate. The telemetry terminal 5 is electrically connected to the infrasound sensor 7 and the communication mechanism 4 through wires, respectively, to receive the monitoring signal of the infrasound sensor 7 and transmit the signal to the remote early warning platform through the communication mechanism 4.

[0036] refer to Figure 3-4 The blow-proof plates are arranged at equal intervals along the height of the equipment box 2, and are all located on the side of the infrasound sensor 7 facing the ventilation hole 13. Each set of blow-proof plates includes a W-shaped corrugated plate 8 and a base 9. The W-shaped corrugated plate 8 is a thin metal plate, and its two ends are fixed to the left and right inner walls of the equipment box 2 by screws to form a bent airflow channel. The bottom end of the W-shaped corrugated plate 8 (i.e., the trough of the "W") has a through hole. The top surface of the base 9 fits against the bottom end of the W-shaped corrugated plate 8, which can block the through hole and intercept the sand and gravel in the airflow. The base 9 is made of ABS engineering plastic.

[0037] Multiple bases 9 are located on the same side and are fixed to the same connecting frame 10 by welding. A guide rod 11 is vertically welded to both the left and right sides of the inner wall of the equipment box 2. The connecting frame 10 is slidably sleeved on the outer wall of the guide rod 11 and can slide up and down along the guide rod 11. A compression spring is sleeved on the outer wall of the guide rod 11. The top of the compression spring abuts against the bottom of the connecting frame 10, and the bottom of the compression spring abuts against the annular boss welded to the outer wall of the guide rod 11. The compression spring is always in a pre-compressed state to provide an upward restoring force for the connecting frame 10.

[0038] refer to Figure 5-6 Mounting brackets 14 are welded to both the left and right sides of the outer wall of the equipment box 2. The rotating plate 15 is a rectangular plastic plate and is rotatably set inside the mounting bracket 14. The rotating plate 15 can rotate around the rotation point. Each of the left and right outer walls of the equipment box 2 has a long sliding hole. A connecting rod 17 is welded to the left and right side walls of the connecting bracket 10. The end of the connecting rod 17 away from the connecting bracket 10 extends through the sliding hole into the interior of the mounting bracket 14. A horizontal plate 19 is fixedly set on the outer wall of the section of the connecting rod 17 inside the mounting bracket 14. The horizontal plate 19 is horizontally set and located below the rotating plate 15. The top of the horizontal plate 19 has two integrally formed limiting protrusions 18. The rotating plate 15 is in an inclined state, and its bottom end abuts against the top of the horizontal plate 19 and is located between the two limiting protrusions 18. The limiting protrusions 18 are used to limit the left and right deviation of the rotation angle of the rotating plate 15.

[0039] A protective plate 16 is fixedly installed on the outer wall of the connecting rod 17. The protective plate 16 fits against the outer wall of the equipment box 2 and is used to cover the sliding hole to prevent rainwater from entering the equipment box 2 through the sliding hole.

[0040] The collection tray 12 is a metal tray, which is fixed to the inner wall of the equipment box 2 by a bracket and located directly below the bottom set of anti-blow plates. The top of the collection tray 12 is an inclined groove that slopes to the left and right sides. The lowest end of the inclined groove is aligned with the drain holes 20 opened on the left and right outer walls of the equipment box 2. L-shaped drain pipes 21 are fixed on both the left and right sides of the outer wall of the equipment box 2. The horizontal section of the L-shaped drain pipe 21 is connected to the drain hole 20, and the vertical section faces downward, which can guide the sand and gravel in the collection tray 12 to be discharged downward, while preventing rainwater from flowing back into the equipment box 2.

[0041] The solar panel 3 is mounted on the top of the support column 1 by a bracket. The equipment box 2 contains a storage battery (a lithium battery pack). The storage battery is electrically connected to the solar panel 3, the telemetry terminal 5, the infrasound sensor 7, and the communication mechanism 4 by wires. The solar panel 3 converts light energy into electrical energy and stores it in the storage battery to provide continuous power to the entire device.

[0042] The working process of this device mainly includes three stages: infrasound signal monitoring, wind and sand interference prevention, and automatic sand and gravel removal.

[0043] Infrasound signal monitoring: Infrasound sensors 7, deployed at potential geological hazard sites (such as landslides and debris flow gullies), capture infrasound waves generated during geological instability (such as soil fissure expansion and rock friction). When infrasound waves act on the sensor, the diaphragm undergoes slight deformation due to the infrasound vibration. This deformation causes the piezoelectric element to deform synchronously, generating a weak charge. After conversion, the charge forms a transmittable electrical signal, which is then received and processed by subsequent equipment to convert the infrasound vibration signal into an electrical signal. The electrical signal output by the infrasound sensor 7 is transmitted to the telemetry terminal 5. The telemetry terminal 5 filters, amplifies, and extracts features from the electrical signal to determine whether it matches the characteristics of a precursory geological hazard signal. Subsequently, the telemetry terminal 5 transmits the processed monitoring data (including infrasound signal characteristics and device operating status) to the remote early warning platform in real time via the communication mechanism 4. Platform staff determine whether an early warning is triggered based on the data. The solar panel 3 absorbs solar energy and converts it into electrical energy. Part of this energy directly powers the device, while the other part is stored in the battery for subsequent power supply.

[0044] The working process of wind and sand interference prevention: When the outdoor airflow (including wind and sand) enters the interior through the ventilation hole 13 of the equipment box 2, the airflow flows along the bending channel composed of multiple sets of anti-blowing plates. The W wave plate 8 forms multiple obstructions and guides to the airflow, so that the airflow direction changes continuously, avoiding the airflow from blowing directly on the infrasound sensor 7 and reducing the interference of wind noise on the infrasound signal capture. Due to the large inertia, the sand and other particles carried in the airflow cannot change direction with the airflow when passing through the bending channel. They will hit the inner wall of the W wave plate 8 and fall down, and are finally intercepted by the base 9 at the bottom of the W wave plate 8.

[0045] Automatic sand and gravel cleaning: When the outdoor wind speed reaches a set threshold (based on the force of the compression spring, and the appropriate compression spring is selected according to actual needs), the wind blows the rotating plate 15 on the outer wall of the equipment box 2, causing the rotating plate 15 to rotate around the pin shaft inside the mounting frame 14. The bottom end of the rotating plate 15 will generate a downward thrust on the horizontal plate 19, overcoming the preload of the compression spring on the guide rod 11, and pushing the horizontal plate 19 to move downward. When the horizontal plate 19 moves downward, it drives the connecting rod 17 fixed to it to slide downward along the sliding hole of the equipment box 2. The connecting rod 17 then drives the connecting frame 10 to move downward along the guide rod 11. The connecting frame 10 drives the multiple bases 9 fixed to it to move downward synchronously, so that the bases 9 are disengaged from the bottom end of the W-shaped wave plate 8. The through hole is opened, and the sand and gravel particles previously trapped by the base 9 fall down along the through hole and eventually fall into the collection tray 12 below. The sand and gravel in the collection tray 12 flow to both sides along the inclined groove at the top, enter the L-shaped drain pipe 21 through the drain hole 20 of the equipment box 2, and finally exit the equipment box 2 outside through the vertical section of the L-shaped drain pipe 21, completing the cleaning of sand and gravel. When the wind speed decreases, the wind force on the rotating plate 15 decreases, the compression spring on the guide rod 11 releases the preload, and pushes the connecting frame 10 to slide upward and reset. The connecting frame 10 drives the base 9 to move upward and re-fit with the bottom end of the W wave plate 8, sealing the through hole. At the same time, the connecting frame 10 drives the horizontal plate 19 to move upward through the connecting rod 17, and the horizontal plate 19 pushes the rotating plate 15 to rotate and reset.

[0046] This application can be used in the field of geological disaster monitoring, or in other fields applicable to this application.

[0047] In another embodiment: a mechanical structure infrasound sensor monitoring device for geological disaster early warning, which is applied to the field of geological disaster monitoring. The structure of this embodiment is basically the same as the previous embodiment, except that the top of the base 9 is set as an inclined surface to prevent falling sand and gravel particles from staying on its top and to ensure the normal reset of the base 9.

[0048] However, as is well known to those skilled in the art, the working principles and wiring methods of communication mechanisms, telemetry terminals, and infrasound sensors are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0049] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0050] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A mechanical infrasound sensing monitoring device for geological disaster early warning, characterized in that, include: Column (1); The equipment box (2) is fixed to the outer wall of the support column (1) by a fixing hoop; The equipment box (2) is equipped with a mounting plate (6) and a telemetry terminal (5) and an infrasound sensor (7). The telemetry terminal (5) and the infrasound sensor (7) are both mounted on the mounting plate (6). Multiple anti-blow plates are arranged at equal intervals along the height of the equipment box (2) and located on one side of the infrasound sensor (7). The anti-blow plate includes a W-shaped wave plate (8) and a base (9). The two ends of the W-shaped wave plate (8) are fixed to the inner wall of the equipment box (2), and a through hole is opened at its bottom end. The base (9) is located at the bottom of the W-shaped wave plate (8) and cooperates with the through hole. The collection tray (12) is fixed to the inner wall of the equipment box (2) and located below the blow shield; The airflow flows along the bent channel formed by the anti-blow plate to avoid directly blowing on the infrasound sensor (7), and the sand and gravel are intercepted by the W wave plate (8) in cooperation with the base (9).

2. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 1, characterized in that, It also includes a solar panel (3) installed on the top of the support column (1), and the equipment box (2) contains a battery that works with the solar panel (3), the telemetry terminal (5) and the infrasound sensor (7), which provides continuous power to the device.

3. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 2, characterized in that, The equipment box (2) has multiple ventilation holes (13) on its door. The multiple ventilation holes (13) correspond to the channels formed by the multiple W-shaped corrugated plates (8) to allow airflow to enter the equipment box (2).

4. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 3, characterized in that, Multiple bases (9) are fixed to the same connecting frame (10) at the ends on the same side. Guide rods (11) are fixed on both sides of the inner wall of the equipment box (2). The connecting frame (10) is slidably sleeved on the outer wall of the guide rod (11) on the same side. A compression spring is sleeved on the outer wall of the guide rod (11). The two ends of the compression spring abut against the bottom of the connecting frame (10) and the boss on the outer wall of the guide rod (11) to provide a restoring force.

5. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 4, characterized in that, It also includes two rotating plates (15). Mounting brackets (14) are fixed on both sides of the outer wall of the equipment box (2). The two rotating plates (15) are rotatably mounted in the two mounting brackets (14). Two sliding holes are opened on the outer wall of the equipment box (2). A connecting rod (17) is fixed on the side wall of the connecting bracket (10). The connecting rod (17) extends into the mounting bracket (14) through the sliding hole on the same side. A horizontal plate (19) is fixed on the outer wall of the connecting rod (17) inside the mounting bracket (14). The horizontal plate (19) is located below the rotating plate (15) on the same side. Two limiting protrusions (18) are provided on its top. The rotating plate (15) is inclined and its bottom end abuts against the top of the horizontal plate (19) and is located between the two limiting protrusions (18). The wind blowing the rotating plate (15) can push the horizontal plate (19) to drive the connecting bracket (10) to move down.

6. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 5, characterized in that, The outer wall of the connecting rod (17) is fixed with a protective plate (16), which is attached to the outer wall of the equipment box (2) to cover the sliding hole to prevent rainwater from entering.

7. The mechanical structure infrasound sensor monitoring device for geological disaster early warning according to claim 6, characterized in that, The top of the collection tray (12) is set with inclined grooves facing both sides. The outer wall of the equipment box (2) has two drainage holes (20), which are connected to the inclined grooves of the collection tray (12) respectively. Both sides of the outer wall of the equipment box (2) are fixed with L-shaped drainage pipes (21). The horizontal section of the L-shaped drainage pipe (21) is connected to the drainage hole (20) on the same side, and the vertical section faces downward to guide the sand and gravel out and prevent rainwater backflow.

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