Rainfall monitor for geological disasters
By introducing an anti-clogging component into the rainfall monitor, a motor-driven scraper automatically removes impurities from the filter screen, solving the problem of impurity clogging in existing technologies, improving monitoring efficiency, and reducing the need for manual maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-17
AI Technical Summary
Existing rainfall monitoring instruments for geological disasters are easily clogged by leaves, branches, or floating debris in severe weather, resulting in reduced rainwater filtration efficiency and requiring frequent manual cleaning, which is labor-intensive.
It adopts anti-clogging components, including a water inlet ring pipe, filter screen, waterproof stepper motor, scraper and waterproof electric push rod, etc. The motor drives the scraper to automatically clean the filter screen, prevent impurities from settling and reduce the frequency of manual maintenance.
The automated impurity removal process improves the reliability and efficiency of rainfall monitoring while reducing the frequency and intensity of manual maintenance.
Smart Images

Figure CN224005286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of geological disaster monitoring technology, specifically a rainfall monitoring instrument for geological disasters. Background Technology
[0002] Geological disasters typically include landslides, debris flows, and ground subsidence. These disasters are often closely related to rainfall. Rainfall monitoring instruments are used to monitor rainfall in real time so that warnings can be issued for disasters such as landslides and debris flows based on rainfall levels.
[0003] A search revealed a Chinese patent for a rainfall monitoring instrument for geological disasters, publication number CN221281254U. The instrument includes a monitoring body, a slot on the top outer surface of the monitoring body, a block movably connected to the inner surface of the slot, a water collection trough fixedly installed on the outer surface of the block, and an arc-shaped cover plate fixedly installed on the top outer surface of the water collection trough.
[0004] The above-mentioned rainfall detector uses a filter component and a vibration component. The motor drives the cam to rotate and apply force to the filter screen, making it move up and down reciprocatingly. This can speed up the filtration of rainwater, improve the monitoring effect, and allow for quick installation and removal of the filter screen, making it convenient for daily use and maintenance.
[0005] However, although it uses a motor and cam to apply force to the filter screen to prevent clogging, impurities will still remain on the screen. It still requires manual disassembly and cleaning, which is labor-intensive. In addition, maintenance may not be possible in time during inclement weather. Furthermore, if leaves, branches, or floating debris fall on the screen due to accidents, although it can vibrate, it will still affect the filtration of rainwater if not removed in time. Utility Model Content
[0006] The purpose of this invention is to provide a rainfall monitoring instrument for geological disasters, which can effectively solve the problems in the background technology.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A rainfall monitoring instrument for geological disasters includes a monitoring component, an anti-clogging component at the top of the monitoring component, and a water inlet ring pipe. The water inlet ring pipe is fixedly installed at the top of the monitoring component, and the water inlet ring pipe is compatible with the water collection port of the monitoring component.
[0009] A filter screen is slidably installed inside the water inlet ring pipe. A slider is slidably installed on one side of the water inlet ring pipe. The filter screen is connected to the inner side of the slider via a connecting block and connecting bolts. A waterproof stepper motor is installed at the center of the bottom end of the filter screen. A rotating plate is installed at the top of the waterproof stepper motor via mounting bolts. Several mounting screws are slidably installed through the upper and lower ends of the rotating plate. A scraper is installed at the bottom end of the mounting screws. A waterproof electric push rod is installed at the upper side of one side of the water inlet ring pipe. The end of the telescopic rod of the waterproof electric push rod is connected to the slider via a connecting block.
[0010] Preferably, the outer ring of the filter screen is fitted to the inner wall of the water inlet ring pipe, and when the push rod of the waterproof electric push rod is retracted, the top surface of the filter screen exceeds the top surface of the water inlet ring pipe.
[0011] Preferably, the monitoring component has an outlet located inside and below the water inlet, and a metering balance plate located inside and below the water outlet. The monitoring component integrates a monitoring body, processor, recorder, and signal transmission module that are compatible with the metering balance plate.
[0012] Preferably, an adjusting nut is threadedly connected to the upper part of the outer ring of the mounting screw, and a retaining spring is provided around the outer ring of the mounting screw, with the upper and lower ends of the retaining spring abutting against the upper and lower opposing surfaces of the scraper and the mounting screw, respectively.
[0013] Preferably, the scraper has a movable gap with the inner wall of the water inlet ring pipe, and the bottom surface of the scraper is in contact with the top surface of the filter screen under the elastic force of the water inlet ring pipe, and the scraper and the filter screen are slidably connected.
[0014] Preferably, the scraper is detachably connected to the rotating plate via a mounting screw and an adjusting nut, the rotating plate is detachably connected to the filter screen via mounting bolts, and the filter screen is detachably connected to the slider via a connecting block and connecting bolts.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, by incorporating an anti-clogging component in conjunction with a monitoring component, filters rainwater entering the water inlet ring pipe during rainfall monitoring. This prevents fallen leaves or other impurities from entering the monitoring component, thus avoiding significant impact on the detection results. Furthermore, by using a rotating plate, a waterproof stepper motor, and a scraper in tandem, accumulated impurities on the filter screen can be scraped away, preventing them from settling and thus avoiding significant impact on rainwater flow.
[0017] By setting up a waterproof electric push rod, slider, connecting block, and filter screen in coordination, the filter screen can be driven to rise. After rising, the scraper continuously scrapes the top surface of the filter screen to push impurities off the filter screen for clogging. This prevents leaves, gravel, or other impurities from remaining on the top surface of the filter screen for a long time, thus achieving a self-cleaning effect and reducing the frequency of manual maintenance. Furthermore, the elasticity of the retaining spring continuously pushes the scraper to keep it in contact with the top surface of the filter screen so that it can continue to be used after slight wear. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a rainfall monitoring instrument for geological disasters according to an embodiment of this utility model;
[0019] Figure 2 This is a cross-sectional view of the internal structure of the monitoring component and the water inlet ring pipe in the embodiment of this utility model;
[0020] Figure 3 This is an exploded view of the structure of the mounting screw, filter screen, and slider in an embodiment of this utility model;
[0021] Figure 4 As an embodiment of this utility model Figure 3 Enlarged view of area A.
[0022] In the diagram: 1. Monitoring component; 2. Anti-clogging component; 3. Water inlet ring pipe; 4. Filter screen; 5. Waterproof electric push rod; 6. Slider; 7. Connecting block; 8. Waterproof stepper motor; 9. Rotating plate; 10. Mounting bolt; 11. Mounting screw; 12. Scraper; 13. Clamping spring; 14. Water outlet; 15. Metering balance plate. Detailed Implementation
[0023] 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.
[0024] Example 1
[0025] Combination Figures 1-4 A rainfall monitoring instrument for geological disasters includes a monitoring component 1, an anti-blocking component 2 is provided at the top of the monitoring component 1, the anti-blocking component 2 has a water inlet ring pipe 3, the water inlet ring pipe 3 is fixedly installed at the top of the monitoring component 1, and the water inlet ring pipe 3 is adapted to the water collection port of the monitoring component 1.
[0026] See Figure 2Furthermore, a filter screen 4 is slidably installed inside the water inlet ring pipe 3, and a slider 6 is slidably installed on one side of the water inlet ring pipe 3. The filter screen 4 is connected to the inner side of the slider 6 through a connecting block 7 and a connecting bolt. A waterproof stepper motor 8 is installed at the center of the bottom end of the filter screen 4. A rotating plate 9 is installed at the top of the waterproof stepper motor 8 through a mounting bolt 10. Several mounting screws 11 are slidably installed through the upper and lower ends of the rotating plate 9. A scraper 12 is installed at the bottom end of the mounting screws 11. A waterproof electric push rod 5 is installed at the upper part of one side of the water inlet ring pipe 3. The end of the telescopic rod of the waterproof electric push rod 5 is connected to the slider 6 through a connecting block 7. The monitoring component 1 is located inside and below the water inlet. There is a water outlet 14. Inside the monitoring component 1 and below the water outlet 14, a metering balance plate 15 is set. The monitoring component 1 integrates a monitoring body, processor, recorder and signal transmission module that are compatible with the metering balance plate 15. An adjusting nut is threaded to the upper part of the outer ring of the mounting screw 11. A retaining spring 13 is set around the outer ring of the mounting screw 11. The upper and lower ends of the retaining spring 13 abut against the upper and lower opposing surfaces of the scraper 12 and the mounting screw 11, respectively. There is a movable gap between the scraper 12 and the inner wall of the water inlet ring pipe 3. Under the elastic force of the water inlet ring pipe 3, the bottom surface of the scraper 12 is in contact with the top surface of the filter screen 4, and the scraper 12 and the filter screen 4 are slidably connected.
[0027] Specifically, when monitoring rainfall using the monitoring component 1 according to existing technology, impurities carried in rainwater can be filtered through the set filter screen 4 to prevent them from entering the interior of the monitoring component 1 with the rainwater. During filtration, the drive shaft of the waterproof stepper motor 8 rotates, which drives the rotating plate 9 to rotate, thereby causing the scraper 12 to rotate against the top surface of the filter screen 4 to agitate the filtered impurities and rainwater, preventing the impurities from settling. At the same time, the rainwater moves back and forth, and the filter screen 4 is coated with a hydrophobic layer to further reduce the probability of rainwater being blocked at the filter screen 4, making it easier for rainwater to enter the monitoring component 1.
[0028] Example 2
[0029] See Figure 4 and Figure 3 Furthermore, based on Embodiment 1, the outer ring of the filter screen 4 is fitted to the inner wall of the water inlet ring pipe 3, and when the push rod of the waterproof electric push rod 5 is retracted, the top surface of the filter screen 4 exceeds the top surface of the water inlet ring pipe 3. The scraper 12 is detachably connected to the rotating plate 9 through the mounting screw 11 and the adjusting nut. The rotating plate 9 is detachably connected to the filter screen 4 through the mounting bolt 10. The filter screen 4 is detachably connected to the slider 6 through the connecting block 7 and the connecting bolt.
[0030] Specifically, when the waterproof stepper motor 8 drives the scraper 12 to rotate and clean the water flow, the filter screen 4 can be driven to rise in the water inlet ring pipe 3 by retracting the drive shaft of the waterproof electric push rod 5. After the top surface of the filter screen 4 exceeds the top surface of the water inlet ring pipe 3, the impurities will be pushed down with the rotation of the scraper 12 to achieve a self-cleaning effect and further improve the anti-clogging effect. At the same time, the intermittent cleaning of the filter screen 4 can reduce the frequency of personnel to replace and clean it, thereby reducing labor intensity.
[0031] In actual operation, rainfall can be monitored using the monitoring component 1 according to existing technology. During monitoring, impurities carried in the rainwater are filtered by the filter screen 4 to prevent them from entering the monitoring component 1. During filtration, the drive shaft of the waterproof stepper motor 8 rotates, which drives the rotating plate 9 to rotate, thereby causing the scraper 12 to rotate against the top surface of the filter screen 4. This agitates the filtered impurities and rainwater, preventing impurities from settling. Simultaneously, the rainwater moves back and forth, and the filter screen 4 is coated with a hydrophobic layer to further reduce the probability of rainwater clogging the filter screen 4, facilitating rainwater entry into the monitoring component 1.
[0032] When the waterproof stepper motor 8 drives the scraper 12 to rotate and clean the water flow, the filter screen 4 can be driven to rise in the water inlet ring pipe 3 by retracting the drive shaft of the waterproof electric push rod 5 until the top surface of the filter screen 4 exceeds the top surface of the water inlet ring pipe 3. Then, the impurities will be pushed down with the rotation of the scraper 12 to achieve a self-cleaning effect and further improve the anti-clogging effect. At the same time, the intermittent cleaning of the filter screen 4 can reduce the frequency of personnel to replace and clean it, thereby reducing labor intensity.
[0033] Furthermore, during use, the adjusting nut can be turned away from the rotating plate 9. After the scraper 12 wears slightly, the spring force of the spring 13 can be used to push the scraper 12 to fit against the top surface of the filter screen 4, thereby extending the positive use time of the scraper 12 and reducing the frequency of maintenance and replacement.
[0034] Furthermore, the monitoring module and control components used in the monitoring of the aforementioned monitoring component 1, the rotation of the drive shaft of the waterproof stepper motor 8, and the extension and retraction of the push rod of the waterproof electric push rod 5 are all existing technologies, which can be fully implemented by those skilled in the art and need not be elaborated upon. The content protected by this utility model does not involve improvements to the control software, methods, or power supply.
[0035] Although embodiments of the present 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 the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A rainfall monitor for geological disasters, comprising a monitoring assembly (1), characterized in that: The top end of the monitoring assembly (1) is provided with an anti-blocking assembly (2), the anti-blocking assembly (2) has a water diversion ring pipe (3), the water diversion ring pipe (3) is fixedly installed at the top end of the monitoring assembly (1), and the water diversion ring pipe (3) is adaptively matched with the water collecting port of the monitoring assembly (1); The inside of the water diversion ring pipe (3) is slidably installed with a filter screen (4), one side of the water diversion ring pipe (3) is slidably installed with a sliding block (6), the filter screen (4) is connected with the inside of the sliding block (6) through a connecting block (7) and a connecting bolt, the bottom end of the filter screen (4) is installed with a waterproof stepping motor (8) at the central position, the top end of the waterproof stepping motor (8) is installed with a rotating plate (9) through a mounting bolt (10), a plurality of mounting screw rods (11) are slidably installed through the upper and lower ends of the rotating plate (9), the bottom end of the mounting screw rod (11) is installed with a scraper (12), one side of the water diversion ring pipe (3) is installed with a waterproof electric push rod (5) at the upper position, and the telescopic rod tail of the waterproof electric push rod (5) is connected with the sliding block (6) through the connecting block (7).
2. The rainfall monitoring instrument for geological disasters according to claim 1, characterized in that: The outer ring of the filter screen (4) is attached to the inner wall of the water diversion ring pipe (3), and the top surface of the filter screen (4) exceeds the top surface of the water diversion ring pipe (3) when the push rod of the waterproof electric push rod (5) is retracted.
3. The rainfall monitoring instrument for geological disasters according to claim 1, characterized in that: The inside of the monitoring assembly (1) and below the water collecting port are provided with a water outlet (14), the inside of the monitoring assembly (1) and below the water outlet (14) are provided with a metering balance plate (15), and the monitoring assembly (1) is integrated with a monitoring main body, a processor, a recorder and a signal transmission module adaptively matched with the metering balance plate (15).
4. The rainfall monitor for geological disasters according to claim 1, characterized in that: The upper position of the outer ring of the mounting screw rod (11) is threadedly connected with an adjusting nut, a pressing spring (13) is arranged around the outer ring of the mounting screw rod (11), and the upper and lower ends of the pressing spring (13) are respectively in abutment with the upper and lower opposite surfaces of the scraper (12) and the mounting screw rod (11).
5. The rainfall monitoring instrument for geological disasters according to claim 4, characterized in that: The scraper (12) and the inner wall of the water diversion ring pipe (3) have a movable gap, the bottom surface of the scraper (12) is attached to the top surface of the filter screen (4) under the elastic force of the water diversion ring pipe (3), and the scraper (12) and the filter screen (4) are slidably connected.
6. The rainfall monitor for geological disasters according to claim 5, characterized in that: The scraper (12) is detachably connected with the rotating plate (9) through the mounting screw rod (11) and the adjusting nut, the rotating plate (9) is detachably connected with the filter screen (4) through the mounting bolt (10), and the filter screen (4) is detachably connected with the sliding block (6) through the connecting block (7) and the connecting bolt.
Citation Information
Patent Citations
Rainfall monitor for geological disasters
CN221281254U