Rainfall type debris flow early warning device

By designing a debris flow early warning device with an adjustable gear and toothed plate driven by an electric motor, multi-point synchronous detection and graded warning functions were achieved, solving the problem of large detection errors in existing devices and improving detection accuracy and warning efficiency.

CN115273409BActive Publication Date: 2026-05-29KUNMING UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
KUNMING UNIV OF SCI & TECH
Filing Date
2022-08-01
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing debris flow early warning devices cannot perform precise multi-point detection during the detection process, resulting in errors in the detection results and insufficient detection accuracy.

Method used

A rain-induced debris flow early warning device was designed, including a first detection unit and a second detection unit. The device uses an electric motor to drive an adjusting gear to rotate, and an adjusting tooth plate to control the sliding of the detection component along a fixed track adjusting plate to achieve multi-point synchronous detection. The device also includes first and second signal generators in the detection component to perform first-level and second-level detection, respectively.

Benefits of technology

It achieves accurate multi-point synchronous detection and can provide precise alerts when debris flows occur, especially for small debris flows or early stages, with a level-one detection alert and a level-two rapid warning for severe debris flows.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of debris flow early warning, and discloses a rainfall type debris flow early warning device, which comprises a first detection part, a second detection part, a fixed track adjusting plate, a first fixed mounting plate, an adjusting gear, a motor and an adjusting tooth plate, the first fixed mounting plate is fixedly mounted at the bottom of the outer side end of the fixed track adjusting plate, and one side of the first detection part and the second detection part is slidably mounted in the interior of the fixed track adjusting plate. The first detection part and the second detection part are arranged, the adjusting gear is driven to rotate forward and reversely by starting the motor, the first detection part and the second detection part can be conveniently adjusted and controlled to slide along the fixed track adjusting plate by the adjusting tooth plate, so that the interval between the first detection part and the second detection part can be conveniently adjusted and controlled, and the first detection part and the second detection part can be used for multi-point synchronous detection, so that the detection result is more accurate.
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Description

Technical Field

[0001] This invention relates to the field of debris flow early warning technology, specifically a rainfall-based debris flow early warning device. Background Technology

[0002] Debris flows are special types of floods that occur in mountainous areas or other deep valleys and rugged terrain, triggered by torrential rains, blizzards, or other natural disasters. These flows carry large amounts of mud, sand, and rocks. Debris flows are characterized by their suddenness, high velocity, large volume, large material capacity, and strong destructive power. They often destroy roads, railways, and other transportation infrastructure, and even villages and towns, causing enormous losses.

[0003] According to Chinese Patent Publication No. CN215495348U, this utility model discloses a debris flow detection system, characterized by comprising a detection radar, a signal processing module, a communication module, and an alarm device. The communication module is electrically connected to the detection radar and the signal processing module. The detection radar is used to emit detection signals and receive echo signals reflected from the soil and rock surface. The signal processing module obtains a detection result indicating whether the soil and rock surface is abnormal based on the echo signals received by the detection radar. The alarm device is used to issue an alarm when the detection result from the signal processing module indicates an abnormality. This debris flow detection system uses a detection radar to emit detection signals and receive echo signals, and judges the state of the soil and rock based on the echo signals. This debris flow detection system can detect the current state of the soil and rock and issue an immediate alarm, effectively protecting the lives and property of people in mountainous areas.

[0004] According to Chinese Patent Publication No. CN107248264A, which discloses a debris flow early warning device and method, this invention discloses a debris flow early warning device, which relates to a device for sensing debris flows, including a pile fixed on a hillside. The device is characterized by having a debris flow early warning system installed within the pile, comprising a CPU, a battery module connected to the CPU, a triaxial accelerometer, and a data communication module. This invention also provides a debris flow early warning method. The beneficial technical effects of this invention are: 1. By installing a triaxial accelerometer within the pile, the presence of a debris flow is determined by the maximum value detected by the triaxial accelerometer within a certain time period and the time difference between the values ​​detected by two debris flow early warning devices. The entire device has a simple structure, low cost, and strong practicality; 2. By installing a universal level and a horizontal adjustment device between the first and second piles, the installation accuracy of the triaxial accelerometer is ensured, achieving high-precision detection.

[0005] Based on a debris flow early warning device and method disclosed in Chinese Patent Publication No. CN114373282A, this invention proposes a debris flow early warning device and method. By setting up the debris flow early warning device to analyze the characteristics of debris flows, and employing a flow velocity sensor containing deformation sensing lines for real-time monitoring and alarm of debris flows, more accurate, comprehensive, and timely monitoring of debris flows is achieved, helping to reduce the economic and loss of life caused by debris flows. The debris flow early warning device is low-cost, highly adaptable to the field, can be widely deployed in various areas, and has high monitoring accuracy. Through the above setup, it can be widely promoted and applied, achieving practical and effective real-time early warning of debris flow disasters.

[0006] However, existing debris flow early warning devices cannot perform accurate multi-point detection during use, resulting in errors in the detection results and insufficient detection accuracy. Therefore, there is an urgent need for a device to solve the above problems, so that debris flows can be accurately detected and warned when they occur. Summary of the Invention

[0007] The purpose of this invention is to provide a rainfall-based debris flow early warning device to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a rainfall-type debris flow early warning device, comprising a first detection unit, a second detection unit, a fixed track adjustment plate, a first fixed mounting plate, an adjusting gear, a motor, and an adjusting toothed plate. The first fixed mounting plate is fixedly installed at the bottom of the outer end of the fixed track adjustment plate. One side of the first and second detection units is slidably installed inside the fixed track adjustment plate. The adjusting toothed plate is fixedly connected to the side end of the first and second detection units near the fixed track adjustment plate. The adjusting gear is rotatably installed between the middle parts of the adjusting toothed plate. The motor is fixedly installed in the middle of the fixed track adjustment plate, and the front end of the motor is fixedly connected to the adjusting gear. The first and second detection units have the same structure. Both the first and second detection units include a second fixed mounting plate, a first detection body, and a second detection body. The first detection body is slidably disposed on the second detection body, and the second fixed mounting plate is fixedly installed on both sides of the bottom of the second detection body.

[0009] Preferably, the first detection body includes a partition protective plate, a sliding detection plate, a detection frame, a sliding snap-fit ​​plate, a first support spring, a contact detection post, a first signal generator, a detection plate, a connecting plate, and a second support spring. The partition protective plate is fixedly installed at the upper end of the detection frame. The sliding detection plate is uniformly slidably snapped into the inside of the detection frame. The sliding snap-fit ​​plate is uniformly fixedly installed at the bottom of the detection frame. The first support spring is fixedly connected to the middle of the inner end of the sliding detection plate. The contact detection post is uniformly fixedly connected to the inner corner of the sliding detection plate. The first signal generator is symmetrically fixedly installed at the upper end of the detection frame. The detection plate is fixedly connected to the inner end of the detection frame by bolts. The second support spring is symmetrically fixedly installed in the middle of the detection plate. The connecting plate is symmetrically fixedly installed on the detection plate, and the second support spring is located between the connecting plates.

[0010] Preferably, both the detection plate and the contact detection post are made of copper, and the contact detection post is electrically connected to the first signal generator via a wire.

[0011] Preferably, the second detection body includes a limiting support plate, a power receiving plate, a connecting plate, a protective plate, a sliding adjustment plate, a second signal generator, and a battery. The bottom of the protective plate is fixedly connected to the limiting support plate, the sliding adjustment plate is fixedly connected to the outer end of the limiting support plate, the power receiving plate is disposed on one side of the connecting plate, and both the power receiving plate and the connecting plate are fixedly mounted on the protective plate. The battery is symmetrically fixedly mounted on the outer end of the protective plate, and the second signal generator is symmetrically fixedly mounted on the outer end of the protective plate, with the second signal generator located above the battery.

[0012] Preferably, the battery is electrically connected to the junction board and the detection board via wires, and the connecting board is electrically connected to the second signal generator via wires.

[0013] Preferably, the sliding adjustment plate is slidably engaged inside the fixed track adjustment plate, the sliding engagement plate is slidably engaged inside the limiting support plate, and the second support spring is fixedly installed between the detection plate and the protective plate.

[0014] Preferably, the adjusting toothed plate is fixedly connected to the protective plates in the first detection unit and the second detection unit, respectively, and the two ends of the partition protective plate are arranged in an arc-shaped smooth shape.

[0015] Preferably, an alarm is fixedly installed at the middle of the outer end of the protective plate and between the second signal generators, and the alarm is electrically connected to the second signal generators.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] I. This invention sets up a first detection unit and a second detection unit, and drives an adjusting gear to rotate in both directions by starting a motor. With the help of the adjusting gear plate, the first and second detection units can be easily adjusted and controlled to slide along the fixed track adjusting plate, thereby facilitating the adjustment and control of the distance between the first and second detection units. The first and second detection units can perform multi-point synchronous detection, making the detection results more accurate.

[0018] Second, the first detection unit and the second detection unit of the present invention can perform precise first-level detection by setting the first detection body. When a small debris flow or the early stage of a debris flow occurs, the first signal generator in the first detection body will send out a detection signal to remind the user.

[0019] Third, by setting a second detection body in the first and second detection parts of the present invention, a second level of detection can be completed using the second detection body. When the debris flow is rapid and severe, the second signal generator in the second detection body will quickly send a signal to the detection personnel to remind and warn them. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0022] Figure 2 This is a side view of the main body of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the first detection unit of the present invention;

[0024] Figure 4 This is a side view of the first detection unit of the present invention;

[0025] Figure 5 This is a schematic diagram of the first detection main body structure of the present invention;

[0026] Figure 6 This is a schematic diagram showing the disassembly of the first detection body of the present invention;

[0027] Figure 7 This is a side view of the first detection body of the present invention;

[0028] Figure 8 This is a schematic diagram of the second detection main body structure of the present invention;

[0029] Figure 9 This is a side view of the second detection body of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the second detection subject of the present invention in a second embodiment.

[0031] In the diagram: 1-First detection unit, 2-Second detection unit, 3-Fixed track adjustment plate, 4-First fixed mounting plate, 5-Adjusting gear, 6-Motor, 7-Adjusting gear plate, 8-Second fixed mounting plate, 9-First detection body, 10-Second detection body, 11-Barrier protection plate, 12-Sliding detection plate, 13-Detection frame, 14-Sliding snap-fit ​​plate, 15-First support spring, 16-Contact detection column, 17-First signal generator, 18-Detection plate, 19-Connecting plate, 20-Second support spring, 21-Limit support plate, 22-Power connection plate, 23-Connecting plate, 24-Protective plate, 25-Sliding adjustment snap-fit ​​plate, 26-Second signal generator, 27-Battery, 28-Alarm. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] The invention will be further described below with reference to the accompanying drawings.

[0035] Example 1

[0036] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4This invention provides an embodiment of a rainfall-induced debris flow early warning device, comprising a first detection unit 1, a second detection unit 2, a fixed track adjustment plate 3, a first fixed mounting plate 4, an adjusting gear 5, a motor 6, and an adjusting toothed plate 7. The first fixed mounting plate 4 is fixedly installed at the bottom of the outer end of the fixed track adjustment plate 3. One side of the first detection unit 1 and the second detection unit 2 are slidably installed inside the fixed track adjustment plate 3. The adjusting toothed plate 7 is fixedly connected to the side end of the first detection unit 1 and the second detection unit 2 near the fixed track adjustment plate 3. The adjusting gear 5 is rotatably installed between the middle parts of the adjusting toothed plate 7. The motor 6 is fixedly installed in the middle of the fixed track adjustment plate 3, and the front end of the motor 6 is fixedly connected to the adjusting gear 5. The first detection unit 1 and the second detection unit 2 are connected in a manner that is not explicitly stated in the original text. The first detection unit 1 and the second detection unit 2 have the same structure. Both include a second fixed mounting plate 8, a first detection body 9, and a second detection body 10. The first detection body 9 is slidably disposed on the second detection body 10, and the second fixed mounting plate 8 is fixedly installed on both sides of the bottom of the second detection body 10. By setting up the first detection unit 1 and the second detection unit 2, and by starting the motor 6 to drive the adjusting gear 5 to rotate in both directions, the first detection unit 1 and the second detection unit 2 can be easily adjusted and controlled to slide along the fixed track adjusting plate 3 with the help of the adjusting gear plate 7. This allows for convenient adjustment and control of the distance between the first detection unit 1 and the second detection unit 2. The first detection unit 1 and the second detection unit 2 can perform multi-point synchronous detection, making the detection results more accurate.

[0037] Please see Figure 5 , Figure 6 and Figure 7 The first detection body 9 includes a partition protective plate 11, a sliding detection plate 12, a detection frame 13, a sliding snap-fit ​​plate 14, a first support spring 15, a contact detection post 16, a first signal generator 17, a detection plate 18, a connecting plate 19, and a second support spring 20. The partition protective plate 11 is fixedly installed on the upper end of the detection frame 13. The sliding detection plate 12 is evenly slidably snapped into the inside of the detection frame 13. The sliding snap-fit ​​plate 14 is evenly fixedly installed on the bottom of the detection frame 13. The first support spring 15 is fixedly connected to the middle of the inner end of the sliding detection plate 12. The contact detection post 16 is evenly fixedly connected to... At the inner corner of the sliding detection plate 12, the first signal generator 17 is symmetrically fixedly installed on the upper end of the detection frame 13. The detection plate 18 is fixedly connected to the inner end of the detection frame 13 by bolts. The second support spring 20 is symmetrically fixedly installed in the middle of the detection plate 18. The connecting plate 19 is symmetrically fixedly installed on the detection plate 18, and the second support spring 20 is located between the connecting plates 19. The first detection body 9 can perform precise first-level detection. When a small debris flow or the early stage of a debris flow occurs, the first signal generator 17 in the first detection body 9 will emit a detection signal to remind the user.

[0038] Please see Figure 7 Both the detection plate 18 and the contact detection post 16 are made of copper. The contact detection post 16 is electrically connected to the first signal generator 17 through a wire, which enables the first signal generator 17 to be powered on and operated.

[0039] Please see Figure 8 and Figure 9 The second detection body 10 includes a limiting support plate 21, a power receiving plate 22, a connecting plate 23, a protective plate 24, a sliding adjustment plate 25, a second signal generator 26, and a battery 27. The bottom of the protective plate 24 is fixedly connected to the limiting support plate 21, and the sliding adjustment plate 25 is fixedly connected to the outer end of the limiting support plate 21. The power receiving plate 22 is located on one side of the connecting plate 23, and both the power receiving plate 22 and the connecting plate 23 are fixedly installed on the protective plate 24. The battery 27 is symmetrically fixedly installed on the outer end of the protective plate 24, and the second signal generator 26 is symmetrically fixedly installed on the outer end of the protective plate 24, and the second signal generator 26 is located above the battery 27. The second detection body 10 can be used to complete the secondary detection. When the mudslide is rapid and severe, the second signal generator 26 in the second detection body 10 will quickly send a signal to the detection personnel to remind and warn them.

[0040] The battery 27 is electrically connected to the power supply board 22 and the detection board 18 via wires, and the connecting plate 23 is electrically connected to the second signal generator 26 via wires, so that the power supply board 22 and the detection board 18 are energized, and the second signal generator 26 can be operated after the connecting plate 23 is energized.

[0041] The sliding adjustment plate 25 is slidably engaged inside the fixed track adjustment plate 3, the sliding engagement plate 14 is slidably engaged inside the limit support plate 21, and the second support spring 20 is fixedly installed between the detection plate 18 and the protective plate 24, and the second support spring 20 plays a supporting and adjusting role.

[0042] The adjusting toothed plate 7 is fixedly connected to the protective plate 24 in the first detection unit 1 and the second detection unit 2 respectively. The distance between the first detection unit 1 and the second detection unit 2 can be adjusted and controlled by adjusting the toothed plate 7. The two ends of the baffle protective plate 11 are set in an arc-shaped smooth shape, so that the mudslide can flow through the two ends of the baffle protective plate 11. The baffle protective plate 11 can protect the first signal generator 17.

[0043] In implementing this embodiment, by setting up a first detection unit 1 and a second detection unit 2, and by starting the motor 6 to drive the adjusting gear 5 to rotate in both directions, the first detection unit 1 and the second detection unit 2 can be easily adjusted and controlled to slide along the fixed track adjusting plate 3 with the help of the adjusting gear plate 7. This allows for convenient adjustment and control of the distance between the first detection unit 1 and the second detection unit 2. The first detection unit 1 and the second detection unit 2 can perform multi-point synchronous detection, making the detection results more accurate. The first detection body 9 in the first detection unit 1 and the second detection unit 2 can perform precise first-level detection. When a small debris flow or the early stage of a debris flow occurs, the first signal generator 17 in the first detection body 9 will send a detection signal to remind the user. The second detection body 10 in the first detection unit 1 and the second detection unit 2 can complete the second-level detection. When the debris flow is rapid and severe, the second signal generator 26 in the second detection body 10 will quickly send a signal to the detection personnel to remind and warn them.

[0044] Example 2

[0045] Based on Example 1, such as Figure 10 As shown, an alarm 28 is fixedly installed at the middle of the outer end of the protective plate 24 and between the second signal generators 26, and the alarm 28 is electrically connected to the second signal generators 26.

[0046] In implementing this embodiment, since an alarm 28 is fixedly installed at the middle of the outer end of the protective plate 24 and between the second signal generators 26, when the second signal generators 26 detect a mudslide, the alarm 28 can be activated to serve as a warning.

[0047] Working principle: The device is fixedly installed at the location to be tested via the first fixed mounting plate 4. Then, the motor 6 is started to drive the adjusting gear 5 to rotate. The rotating adjusting gear 5, through the adjusting tooth plate 7, allows the first detection part 1 and the second detection part 2 to slide synchronously along the fixed track adjusting plate 3 to adjust and control the working distance between the first detection part 1 and the second detection part 2. When a mudslide occurs, the flowing mudslide will first contact the detection frame 13, and the sliding detection plate 12 will compress the first support spring 15, causing the sliding detection plate 12 to slide along the detection frame 13 inward, so that the contact detection post 16 contacts the detection plate 18. When the detection plate 18 is energized, the contact detection column 16 is electrically connected to the first signal generator 17 via a wire. The battery 27 is electrically connected to the power receiving plate 22 and the detection plate 18 via a wire. At this time, the energization of the contact detection column 16 drives the first signal generator 17 to be energized, causing the first signal generator 17 to operate and send a signal to the detection personnel. When the mudslide is rapid, the mudslide compresses the second support spring 20 through the barrier protection plate 11 and the detection frame 13, causing the sliding locking plate 14 to slide along the limit support plate 21, so that the connecting plate 19 contacts the power receiving plate 22 and the connecting plate 23, causing the second signal generator 26 to operate. At this time, the second signal generator 26 sends a signal to the detection personnel. The device sends a signal to the personnel. Since an alarm 28 is fixedly installed at the middle of the outer end of the protective plate 24, between the second signal generators 26 and the first signal generator 26, the alarm 28 can be activated when the second signal generator 26 detects a mudslide, serving as a warning. This device, by setting up a first detection unit 1 and a second detection unit 2, and by starting the motor 6 to drive the adjusting gear 5 to rotate forward and backward, can easily adjust and control the sliding of the first detection unit 1 and the second detection unit 2 along the fixed track adjusting plate 3 using the adjusting gear plate 7. This allows for convenient adjustment and control of the distance between the first detection unit 1 and the second detection unit 2. The detection unit 2 can perform multi-point synchronous detection, making the detection results more accurate. The first detection unit 1 and the second detection unit 2 can perform precise first-level detection by setting the first detection body 9. When a small debris flow or the early stage of a debris flow occurs, the first signal generator 17 in the first detection body 9 will send a detection signal to remind the user. The first detection unit 1 and the second detection unit 2 can perform second-level detection by setting the second detection body 10. When the debris flow is rapid and severe, the second signal generator 26 in the second detection body 10 will quickly send a signal to the detection personnel to remind and warn them.

[0048] 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 rainfall-type debris flow early warning device, comprising a first detection unit (1), a second detection unit (2), a fixed track adjustment plate (3), a first fixed mounting plate (4), an adjustment gear (5), a motor (6), and an adjustment toothed plate (7), characterized in that: The first fixed mounting plate (4) is fixedly installed at the bottom of the outer end of the fixed track adjustment plate (3). The first detection part (1) and the second detection part (2) are slidably installed on one side inside the fixed track adjustment plate (3). The adjustment tooth plate (7) is fixedly connected to the side end of the first detection part (1) and the second detection part (2) near the fixed track adjustment plate (3). The adjustment gear (5) is rotatably installed between the middle of the adjustment tooth plate (7). The motor (6) is fixedly installed in the middle of the fixed track adjustment plate (3). The front end of the motor (6) is fixedly connected to the adjustment gear (5). The first detection part (1) and the second detection part (2) have the same structure. The first detection part (1) and the second detection part (2) both include the second fixed mounting plate (8), the first detection body (9) and the second detection body (10). The first detection body (9) is slidably installed on the second detection body (10). The second fixed mounting plate (8) is fixedly installed on both sides of the bottom of the second detection body (10). The first detection body (9) includes a sliding detection plate (12), a detection frame (13), a sliding snap-fit ​​plate (14), a first support spring (15), a contact detection post (16), a first signal generator (17), a detection plate (18), a connecting plate (19), and a second support spring (20). The sliding detection plate (12) is evenly slidably snapped into the inside of the detection frame (13), and the sliding snap-fit ​​plate (14) is evenly and fixedly installed at the bottom of the detection frame (13). The first support spring (15) is fixedly connected to the sliding detection plate (12). The contact detection column (16) is uniformly fixedly connected to the inner corner of the sliding detection plate (12) at the middle of the inner end of the sliding detection plate (12). The first signal generator (17) is symmetrically fixedly installed on the upper end of the detection frame (13). The detection plate (18) is fixedly connected to the inner end of the detection frame (13) by bolts. The second support spring (20) is symmetrically fixedly installed in the middle of the detection plate (18). The connecting plate (19) is symmetrically fixedly installed on the detection plate (18), and the second support spring (20) is located between the connecting plates (19). The second detection body (10) includes a limiting support plate (21), a power receiving plate (22), a connecting plate (23), a protective plate (24), and a second signal generator (26). The bottom of the protective plate (24) is fixedly connected to the limiting support plate (21). The power receiving plate (22) is set on one side of the connecting plate (23), and both the power receiving plate (22) and the connecting plate (23) are fixedly installed on the protective plate (24). The second signal generator (26) is symmetrically fixedly installed on the outer end of the protective plate (24). When a debris flow occurs, the flowing debris flow will first come into contact with the detection frame (13), and the sliding detection plate (12) will squeeze the first support spring (15) to make the sliding detection plate (12) slide along the detection frame (13) into the inside of the detection frame (13), so that the contact detection column (16) comes into contact with the detection plate (18). At this time, the first signal generator (17) runs and sends a signal to the detection personnel. When the debris flow is rapid, the debris flow compresses the second support spring (20) through the barrier protection plate (11) and the detection frame (13), causing the sliding snap plate (14) to slide along the limit support plate (21), so that the connecting plate (19) contacts the electrical plate (22) and the connecting plate (23), causing the second signal generator (26) to run. At this time, the second signal generator (26) sends a signal to the detection personnel.

2. The rain-induced debris flow early warning device according to claim 1, characterized in that: The first detection body (9) also includes a partition protective plate (11), which is fixedly installed on the upper end of the detection frame (13).

3. The rain-induced debris flow early warning device according to claim 2, characterized in that: The detection plate (18) and the contact detection post (16) are both made of copper. The contact detection post (16) is electrically connected to the first signal generator (17) through a wire.

4. The rain-induced debris flow early warning device according to claim 3, characterized in that: The second detection body (10) also includes a sliding adjustment plate (25) and a battery (27). The sliding adjustment plate (25) is fixedly connected to the outer end of the limiting support plate (21). The battery (27) is symmetrically fixedly installed on the outer end of the protective plate (24). The second signal generator (26) is located above the battery (27).

5. A rainfall-induced debris flow early warning device according to claim 4, characterized in that: The battery (27) is electrically connected to the junction board (22) and the detection board (18) via wires, and the connecting board (23) is electrically connected to the second signal generator (26) via wires.

6. A rainfall-induced debris flow early warning device according to claim 5, characterized in that: The sliding adjustment plate (25) is slidably engaged inside the fixed track adjustment plate (3), the sliding engagement plate (14) is slidably engaged inside the limiting support plate (21), and the second support spring (20) is fixedly installed between the detection plate (18) and the protective plate (24).

7. A rainfall-induced debris flow early warning device according to claim 6, characterized in that: The adjusting tooth plate (7) is fixedly connected to the protective plate (24) in the first detection unit (1) and the second detection unit (2), respectively, and the two ends of the partition protective plate (11) are arranged in an arc-shaped smooth shape.

8. A rainfall-induced debris flow early warning device according to claim 7, characterized in that: An alarm (28) is fixedly installed at the middle of the outer end of the protective plate (24) and between the second signal generator (26), and the alarm (28) is electrically connected to the second signal generator (26).