Anti-blocking detection device for tipping bucket type rain sensor
By adding a liquid level sensor to the tipping bucket rain gauge, the problem of easy clogging in traditional tipping bucket rain gauges is solved, enabling timely identification of clogging and accurate data, and reducing operation and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI METEOROLOGICAL INSTR FACTORY CO LTD
- Filing Date
- 2025-06-13
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional tipping bucket rain gauges are easily clogged by debris such as leaves and mud, preventing water from flowing through properly and causing the sensor to continuously output incorrect signals, making it difficult to detect blockages in a timely manner.
By adding a liquid level sensor to the tipping bucket rain gauge, blockages can be identified by monitoring changes in the liquid level, ensuring data accuracy and continuity. The liquid level sensor can also be fixed and its position adjusted through simple structural modifications.
It enables timely identification of blockages, avoids long-term data inaccuracies, reduces the frequency of manual inspections and maintenance costs, and ensures the continuity and accuracy of rainfall records.
Smart Images

Figure CN224137469U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of tipping bucket rain gauges, and in particular relates to a tipping bucket rain gauge anti-clogging detection device. Background Technology
[0002] The tipping bucket rain gauge is a meteorological instrument used to automatically measure precipitation. It is widely used in meteorological monitoring, hydrological observation, agricultural irrigation, and urban flood control. It converts rainfall into a recordable electrical signal through a mechanical structure and features high measurement accuracy, strong stability, and easy maintenance.
[0003] Traditional tipping bucket rain gauges (such as the SL3-1 model) measure rainfall by the number of times the bucket tipps. Their structure includes a collection funnel, a tipping bucket assembly, and a counting module. However, the collection funnel and drainage pipe are easily clogged by leaves, silt, and other debris, preventing water flow and causing the bucket to stop tipping. Even then, the sensor continues to output an "no rainfall" error signal, making it difficult to detect blockages in existing tipping bucket rain gauges in a timely manner.
[0004] To address this issue, we propose a tipping bucket rain gauge anti-clogging detection device. Utility Model Content
[0005] The purpose of this invention is to solve the problem that it is difficult to detect the blockage of existing tipping bucket rain gauges in a timely manner, and to propose a tipping bucket rain gauge anti-blockage detection device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A tipping-type rain gauge anti-clogging detection device includes a frame and a liquid level sensor. A funnel, an upper tipping bucket, and a lower tipping bucket are fixedly mounted on the frame. A support plate is also fixedly mounted on the frame, and a fixing plate is fixedly mounted on the support plate. The liquid level sensor is installed inside the fixing plate. The fixing plate includes a plate body, one end of which is fixedly connected to a mounting plate. The mounting plate is fixedly mounted on the frame by screws. A rotating buckle is movably embedded in the plate body, and a fixing frame is rotatably mounted on the rotating buckle. The liquid level sensor is fixedly installed inside the fixing frame. A nut is fixedly connected to the outside of the plate body, and a first bolt is threaded onto the nut. The first bolt presses against the fixing frame, and a knob is fixedly connected to the end of the first bolt facing away from the fixing frame. The liquid level sensor monitors changes in the liquid level. If the liquid level remains high, the indicator is blocked; otherwise, the indicator functions normally, preventing long-term data inaccuracies and ensuring the continuity and accuracy of rainfall records. The simple addition of the liquid level sensor, without modifying the core structure, increases compatibility. It also reduces maintenance costs by decreasing the frequency of manual inspections. To install the liquid level sensor, simply screw the buckle parallel to the slot on the plate, pass the buckle through the plate, and then screw it in again. Tightening the knob then tightens the first bolt, pressing it against the mounting bracket to secure the plate, bracket, and buckle, facilitating sensor installation. Loosening the first bolt allows the bracket to slide the buckle along the plate, and then tightening the first bolt again allows for easy adjustment of the liquid level sensor's position.
[0008] Preferably, it also includes a mounting ring, which is fixedly connected to the lower part of the frame. An external screw is passed through the mounting ring and installed on the target ground.
[0009] Preferably, the mounting bracket includes a collar, the liquid level sensor is inserted into the collar, and a spring is provided inside the collar. One end of the spring is fixedly connected to the collar, and a second bolt is threaded onto the side of the collar, the second bolt being in movable contact with the spring. After the liquid level sensor is inserted into the collar and the spring, the second bolt is tightened, using the second bolt to compress the spring, causing the spring to compress the liquid level sensor, thus fixing the liquid level sensor inside the collar and the spring, facilitating the fixation of the mounting bracket and the liquid level sensor.
[0010] Preferably, the fixing frame further includes a stop hook, the rotating buckle is rotatably mounted on the side of the collar, and the stop hook is movably hooked outside the rotating buckle. By using the stop hook to hook outside the rotating buckle, the rotating buckle is stably rotated and mounted on the side of the collar.
[0011] Preferably, the rotating buckle includes a retaining plate, which is movably engaged between the collar and the retaining hook. A rotating shaft is fixedly connected to one side of the retaining plate, and the rotating shaft rotates through the side of the collar. A retaining strip is fixedly connected to the end of the rotating shaft facing away from the retaining plate, and the retaining strip presses against the outside of the plate. By using the retaining strip to hold the fixing bracket on the plate, the rotating buckle is screwed on to make the retaining strip parallel to the groove of the plate, and the rotating buckle is pulled out from the plate. Similarly, the rotating buckle is reassembled with the fixing plate by reversing the operation, which facilitates the installation or removal of the rotating buckle.
[0012] Preferably, the baffle strip has a guide surface at its corner. The guide surface guides the baffle strip to be fastened to the outside of the plate.
[0013] In summary, the technical effects and advantages of this utility model are as follows:
[0014] 1. The liquid level sensor monitors changes in the liquid level. If the liquid level remains high and does not decrease, the indicator will be blocked. Otherwise, the indicator will function normally, thus avoiding long-term inaccurate data and ensuring the continuity and accuracy of rainfall records.
[0015] 2. By simply adding a liquid level sensor, without modifying the core structure, compatibility is increased; by reducing the frequency of manual maintenance, operation and maintenance costs are reduced.
[0016] 3. Tighten the buckle until it is parallel to the groove of the plate, then pass the buckle through the plate and tighten it to fasten it onto the plate. Then tighten the knob to turn the first bolt, which will press the first bolt against the fixing bracket, thus fixing the plate, fixing bracket, and buckle in place, making it easy to install the liquid level sensor.
[0017] 4. Loosen the first bolt, pull the fixing bracket to make the rotating buckle slide along the inside of the plate, and then tighten the first bolt to fix it, so as to facilitate the adjustment of the position of the liquid level sensor.
[0018] 5. After inserting the liquid level sensor into the collar and spring, tighten the second bolt. Use the second bolt to press the spring, which in turn presses the liquid level sensor, thus fixing the liquid level sensor inside the collar and spring. This makes it easier to fix the mounting bracket and the liquid level sensor.
[0019] 6. Use the stop bar to block the outside of the board to keep the fixing bracket on the board. Twist the buckle to make the stop bar parallel to the groove of the board. Pull the buckle out of the board. Similarly, reverse the operation to reassemble the buckle and the fixing plate for easy installation or removal of the buckle. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the fixing plate structure of this utility model;
[0022] Figure 3This is a schematic diagram of the fixing frame structure of this utility model;
[0023] Figure 4 This is a schematic diagram of the snap fastener structure of this utility model.
[0024] In the diagram: 1. Frame; 2. Fixing plate; 3. Fixing bracket; 4. Rotary buckle; 5. Liquid level sensor; 6. Support plate; 7. Funnel; 8. Upper tilting bucket; 9. Lower tilting bucket; 10. Mounting ring; 21. Plate body; 22. Mounting plate; 23. First bolt; 24. Knob; 25. Nut; 31. Collar; 32. Spring; 33. Second bolt; 34. Stop hook; 41. Stop plate; 42. Rotating shaft; 43. Stop bar; 44. Guide surface. Detailed Implementation
[0025] The technical solutions of the utility model embodiments will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.
[0026] like Figure 1 and 2 As shown, a tipping-type rain gauge anti-clogging detection device includes a frame 1 and a liquid level sensor 5. A funnel 7, an upper tipping bucket 8, and a lower tipping bucket 9 are fixedly installed on the frame 1. A support plate 6 is also fixedly installed on the frame 1, and a fixing plate 2 is fixedly installed on the support plate 6. The liquid level sensor 5 is installed inside the fixing plate 2. The fixing plate 2 includes a plate body 21, and a mounting plate 22 is fixedly connected to one end of the plate body 21. The mounting plate 22 is fixedly installed on the frame 1 by screws. A rotating buckle 4 is movably embedded in the plate body 21, and a fixing frame 3 is rotatably installed on the rotating buckle 4. The liquid level sensor 5 is fixedly installed inside the fixing frame 3. A nut 25 is fixedly connected to the outside of the plate body 21. A first bolt 23 is installed on the internal thread of the nut 25. The first bolt 23 presses on the fixing frame 3. A knob 24 is fixedly connected to the end of the first bolt 23 facing away from the fixing frame 3.
[0027] like Figure 1 As shown, it also includes a mounting ring 10, which is fixedly connected to the lower part of the frame 1. External screws are passed through the mounting ring 10 to install it onto the target ground.
[0028] like Figure 2 and 3 As shown, the mounting bracket 3 includes a collar 31, into which the liquid level sensor 5 is inserted. A spring piece 32 is located inside the collar 31, with one end of the spring piece 32 fixedly connected to the collar 31. A second bolt 33 is threaded onto the side of the collar 31, and the second bolt 33 makes movable contact with the spring piece 32. After inserting the liquid level sensor 5 into the collar 31 and spring piece 32, the second bolt 33 is tightened. The second bolt 33 compresses the spring piece 32, causing the spring piece 32 to compress the liquid level sensor 5, thus fixing the liquid level sensor 5 within the collar 31 and spring piece 32.
[0029] like Figure 2 and 3 As shown, the fixing bracket 3 also includes a stop hook 34, and the rotating buckle 4 is rotatably mounted on the side of the collar 31. The stop hook 34 is movably hooked outside the rotating buckle 4. By using the stop hook 34 to hook outside the rotating buckle 4, the rotating buckle 4 is stably rotated and mounted on the side of the collar 31.
[0030] like Figure 2 and 4 As shown, the rotating buckle 4 includes a retaining plate 41, which is movably engaged between the collar 31 and the retaining hook 34. A rotating shaft 42 is fixedly connected to one side of the retaining plate 41. The rotating shaft 42 rotates through the side of the collar 31. A retaining strip 43 is fixedly connected to the end of the rotating shaft 42 facing away from the retaining plate 41. The retaining strip 43 presses against the outside of the plate 21. By using the retaining strip 43 to block the outside of the plate 21, the fixing bracket 3 is held on the plate 21. By twisting the rotating buckle 4, the retaining strip 43 is kept parallel to the groove of the plate 21, and the rotating buckle 4 is pulled out from the plate 21. Similarly, the rotating buckle 4 is reassembled with the fixing plate 2 by reversing the operation.
[0031] like Figure 4 As shown, a guide surface 44 is provided at the corner of the baffle 43. The guide surface 44 is used to guide the baffle 43 to be fastened to the outside of the plate 21.
[0032] Working principle: The liquid level sensor 5 monitors changes in liquid level. If the liquid level remains high, the indicator will be blocked; otherwise, the indicator will function normally, preventing long-term data inaccuracy. Tighten the buckle 4 until it is parallel to the groove of the plate 21, then pass the buckle 4 through the plate 21 and tighten it again to secure it to the plate 21. Then, turn the knob 24 to screw the first bolt 23, which in turn presses the fixing bracket 3 to keep the plate 21, fixing bracket 3, and buckle 4 in place, facilitating the installation of the liquid level sensor 5. Loosen the first bolt 23, pull the fixing bracket 3 to slide the buckle 4 along the inside of the plate 21, and then tighten the first bolt 23 to fix it, thus adjusting the position of the liquid level sensor 5.
[0033] The above description is only a preferred embodiment of the utility model, but the protection scope of the utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed by the utility model, based on the technical solution and the utility model concept, should be included within the protection scope of the utility model.
[0034] The description briefly mentions the application direction of the utility model in relation to existing technologies known to those skilled in the art without modification, and combines them with the utility model to form a complete technology; it avoids excessive popularization of technologies known to those skilled in the art, in order to help those skilled in the art quickly understand the main content of the utility model.
Claims
1. A tipping bucket rain sensor anti-blocking detection device, comprising a rack (1), a liquid level sensor (5), characterized in that: A funnel (7), an upper tilting bucket (8), and a lower tilting bucket (9) are fixedly installed on the frame (1). A support plate (6) is also fixedly installed on the frame (1). A fixing plate (2) is fixedly installed on the support plate (6). The liquid level sensor (5) is installed inside the fixing plate (2). The fixing plate (2) includes a plate body (21). One end of the plate body (21) is fixedly connected to a mounting plate (22). The mounting plate (22) is fixedly installed on the frame (1) by screws. The plate (21) is movably fitted with a rotating buckle (4), and a fixing frame (3) is rotatably mounted on the rotating buckle (4). The liquid level sensor (5) is fixedly mounted inside the fixing frame (3). A nut (25) is fixedly connected to the outside of the plate (21). A first bolt (23) is installed in the internal thread of the nut (25). The first bolt (23) presses on the fixing frame (3). A knob (24) is fixedly connected to the end of the first bolt (23) facing away from the fixing frame (3).
2. The anti-clogging detection device for a tipping-bucket rain gauge according to claim 1, characterized in that: It also includes a mounting ring (10), which is fixedly connected to the lower part of the frame (1).
3. The anti-clogging detection device for a tipping-bucket rain gauge according to claim 1, characterized in that: The fixing frame (3) includes a collar (31), the liquid level sensor (5) is inserted into the collar (31), the collar (31) is provided with a spring piece (32) inside, one end of the spring piece (32) is fixedly connected to the collar (31), and a second bolt (33) is threaded on the side of the collar (31), the second bolt (33) is in movable contact with the spring piece (32).
4. The anti-clogging detection device for a tipping-bucket rain gauge according to claim 3, characterized in that: The fixing frame (3) also includes a stop hook (34), the swivel buckle (4) is rotatably mounted on the side of the collar (31), and the stop hook (34) is movably hooked outside the swivel buckle (4).
5. A tipping-bucket rain gauge anti-blocking detection device according to claim 4, characterised in that: The buckle (4) includes a baffle (41), which is movably locked between the collar (31) and the hook (34). A rotating shaft (42) is fixedly connected to one side of the baffle (41). The rotating shaft (42) rotates through the side of the collar (31). A stop bar (43) is fixedly connected to the end of the rotating shaft (42) facing away from the baffle (41). The stop bar (43) presses against the outside of the plate (21).
6. The anti-clogging detection device for a tipping bucket rain gauge according to claim 5, characterized in that: The baffle (43) has a guide surface (44) at its corner.