A high-efficiency windproof and insect-proof tipping bucket rain gauge with damping and bypass structure

Abstract

A high-efficiency, windproof, and insect-proof tipping bucket rain gauge with a damping and bypass structure is disclosed. It belongs to the category of tipping bucket rain gauges. It comprises a rain inlet assembly, an outer cylinder, a base, a water filling funnel, a tipping bucket bracket, a metering tipping bucket assembly, a left tipping bucket tilt support assembly, a right tipping bucket tilt support assembly, a reed switch, a leveling bubble, a horizontal support plate, a support plate leveling adjustment device, and a drainage funnel. It also includes a windproof and insect-proof drainage pipe assembly. The windproof and insect-proof drainage pipe assembly is located below the drainage funnel and communicates with it. Advantages: In strong winds, only a small amount of wind enters the drainage bucket through the insect-proof drainage pipe assembly, effectively reducing erroneous tipping of the bucket and false alarms, improving sensor reliability and ensuring the accuracy of the tipping bucket rain gauge in strong winds. A filter is added to the damping bypass pipe, increasing wind resistance and reducing the amount of air entering the drainage bucket. This also reduces the risk of insects entering and affecting the sensor's reliability and accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of tipping bucket rain gauges, in particular to a high-efficiency windproof and insect-proof tipping bucket rain gauge with a damping and bypass structure. Background Art

[0002] The tipping bucket rain gauge is the largest and most widely used precipitation measuring instrument in the world today. Its advantages are simple structure, long life, low price, no power consumption, and the ability to be used for remote sensing. It is widely used in various fields such as hydrology, water conservancy, agriculture, meteorology, flood prevention and disaster reduction, and transportation.

[0003] The tipping bucket rain gauge includes: a rain receiving port assembly 1, an outer tube 2, a base 3, a water injection funnel 4, a tipping bucket bracket 5, a metering tipping bucket assembly 6, a left tipping bucket tilting support assembly 7, a right tipping bucket tilting support assembly 8, a reed switch 9, a leveling bubble 10, a horizontal support plate 11, a support plate leveling device 12, and a drainage funnel 13;

[0004] The lower end of the outer tube 2 is connected to the base 3, and the upper end of the outer tube 2 is provided with a rain inlet assembly 1, which is inserted into the outer tube 2; a support plate horizontal adjustment device 12 is connected to the base 3, and a horizontal support plate 11 is connected to the support plate horizontal adjustment device 12; a tipping bucket bracket 5 is connected to the horizontal support plate 11, and a water injection funnel 4 is provided at the upper end of the tipping bucket bracket 5, and the water inlet of the water injection funnel 4 is located below the water outlet of the rain inlet assembly 1; a metering tipping bucket assembly 6 is connected to the tipping bucket bracket 5, and the metering tipping bucket assembly 6 is supported by the tipping bucket bracket 5 The metering bucket assembly 6 swings left and right; the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8 are connected to the horizontal support plate 11 below the metering bucket assembly 6, and the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8 are located on both sides of the fulcrum of the bucket bracket 5; a horizontal bubble 10 is connected between the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8; there is a bucket shaft support on the bucket bracket 5, and the bucket shaft 6-1 is installed on the bucket shaft support; there are two drainage funnels 13 under the two bucket tips of the metering bucket assembly 6.

[0005] Among them, the metering bucket assembly 6 includes: a bucket shaft 6-1, a middle partition 6-2, a left bucket 6-3, a right bucket 6-4 and a permanent magnet 6-5; there is a middle partition 6-2 between the left bucket 6-3 and the right bucket 6-4, and the middle partition 6-2 separates the two buckets into symmetrical left bucket 6-3 and right bucket 6-4, and there is a bucket shaft 6-1 on the bottom surface of the bucket at the lower end of the middle partition 6-2; permanent magnets 6-5 are connected to the side walls of the left bucket 6-3 and the right bucket 6-4.

[0006] The left bucket 6-3 and the right bucket 6-4 are water discharge buckets or water storage buckets to each other. When one of the buckets is filled with a certain amount of water, the bucket flips to the other side with the bucket axis 6-1 as the axis. The one flipped downward is the water discharge bucket, and the one flipped upward is the water storage bucket, and this cycle repeats. The water receiving port of the bucket serving as the water storage bucket is located below the water outlet of the water injection funnel 4; a permanent magnet 6-5 is installed on the bucket, and a reed switch 9 is installed at a corresponding position on the bucket bracket 5. During the bucket flipping process, the permanent magnet 6-5 approaches the reed switch 9 and then leaves quickly, causing the contacts in the reed switch 9 to produce a closing and opening process, so that each time the bucket flips, a signal is generated. The rainfall collection and display instrument and the data processing system display the rainfall through signal collection and accumulation and perform data processing.

[0007] The precipitation enters the water injection funnel 4 from the rainwater receiving port, and then enters the water storage bucket of the tipping bucket. When the water body of the water storage bucket changes, the total overturning torque M F The total reversal torque M is greater than the weight of the dump bucket and other factors. N It flips over instantly to drain all the rainwater it has received, and the bucket on the other side becomes a water storage bucket to store water, and the precipitation is measured in this way.

[0008] The principle equation of moment dynamic balance is:

[0009] M N =M K. (1)

[0010] (1) Where: M K —Reversal torque of bucket body (including bucket shell, middle partition, permanent magnet, and bucket shaft), unit: gram·centimeter (g·cm). M K =F K ×L K , F K is the weight of the bucket, in grams (g), L K is the length of the bucket arm, in centimeters (cm);

[0011] M F =M S. (2)

[0012] (2) Where: M S —The dynamic torque generated by the weight of the water in the water storage tank, its magnitude varies with the total amount of water stored and the amount of outward displacement of the center of gravity of the water body, unit: gram·centimeter (g·cm). M S =F S ×L S , F S is the weight of water in grams (g), L S is the length of the water body force arm, in centimeters (cm);

[0013] In actual use, strong winds often destroy the theoretical dynamic balance of torque. Strong winds enter the sensor from the drainage funnel 13, applying a torque to the metering bucket assembly 6, causing the metering bucket assembly 6 to flip prematurely or delayed during precipitation observation, resulting in large errors in the sensor observation data; when there is no precipitation, strong winds enter the sensor from the drainage funnel 13, blowing the metering bucket assembly 6, and the permanent magnet 6-5 enters the sensing area of ​​the reed switch 9, causing the rain sensor to misreport data.

[0014] Since rain gauges work in outdoor environments for a long time, insects often enter the sensors, affecting the flexibility of moving parts and even blocking the water channels inside the sensors, affecting the reliability and accuracy of the sensors.

[0015] During precipitation observations, strong winds are a major cause of tipping bucket rain gauges malfunctioning, leading to observation errors. This can also damage the sensor's structure, impacting its performance. my country's climate is complex and diverse, especially in coastal areas, where frequent typhoons impact precipitation observations. There is an urgent need for a tipping bucket rain gauge that can adapt to heavy rain, typhoons, and other weather conditions.

[0016] In summary, the shortcomings and deficiencies of the conventional tipping bucket rain gauge are:

[0017] 1. When working in strong wind weather, strong wind enters the sensor from the drainage funnel, destroying the theoretical dynamic balance of torque, resulting in large errors in the sensor observation data or false reporting of rainfall sensor data.

[0018] 2. Rain gauges work in outdoor environments for a long time, and insects often enter the sensors, affecting the flexibility of moving parts and even causing blockage of the internal water channels of the sensors, affecting the reliability and accuracy of the sensors. Summary of the Invention

[0019] The task of the present invention is to overcome the shortcomings and deficiencies of the prior art and provide a high-efficiency windproof and insect-proof tipping bucket rain gauge with a damping and bypass structure to solve the problem of poor reliability and measurement accuracy caused by the false reporting of rain gauge data when the existing tipping bucket rain gauge operates in strong wind weather.

[0020] To achieve the above-mentioned object, the tipping bucket rain gauge of the present invention comprises: a rain receiving port assembly, an outer cylinder, a base, a water injection funnel, a tipping bucket bracket, a metering tipping bucket assembly, a left tipping bucket tilting support assembly, a right tipping bucket tilting support assembly, a reed switch, a leveling bubble, a horizontal support plate, a support plate leveling adjustment device, and a drainage funnel; wherein the metering tipping bucket assembly comprises: a tipping bucket shaft, a middle partition plate, a left bucket chamber, a right bucket chamber, and a permanent magnet;

[0021] It also includes: a windproof and insect-proof drainage pipe assembly; the windproof and insect-proof drainage pipe assembly is located below the drainage funnel and is communicated with the drainage funnel.

[0022] The windproof and insect-proof drainage pipe assembly includes: a transfer interface, a main pipe, a damping bypass pipe and a filter screen; there is a transfer interface directly above the main pipe, which is connected to the drainage funnel; one end of the main pipe is connected to the drainage funnel, and the other end is connected to the middle position of the damping bypass pipe; the filter screen is arranged at both ends of the damping bypass pipe.

[0023] The windproof and insect-proof drainage pipe assembly also includes: a leaking nozzle, a left air guide surface and a right air guide surface; the leaking nozzle is arranged at the junction of the main pipe and the damping bypass pipe; the left air guide surface is arranged on the left side of the leaking nozzle; and the right air guide surface is arranged on the right side of the leaking nozzle.

[0024] There are three windproof and insect-proof drainage pipe assemblies, and the structures of the three windproof and insect-proof drainage pipe assemblies are the same; the adapter of a main pipe is connected to the drainage funnel, and the two ends of the damping bypass pipe of the main pipe are respectively connected to the main pipe adapters of the other two windproof and insect-proof drainage pipe assemblies. The connection state of the two windproof and insect-proof drainage pipe assemblies is horizontal, vertical or any other angle, and the damping bypass pipes of the other two windproof and insect-proof drainage pipe assemblies are connected to filters.

[0025] Beneficial effect: Due to the adoption of the above technical solution, when the rain sensor is working in a strong wind environment, after the wind enters the damping bypass pipe of the windproof and insect-proof drainage pipe assembly, most of the wind will be discharged through the other end of the damping bypass pipe, and only a small part of the wind will enter the drainage bucket through the main pipe. This part of the wind is difficult to blow the bucket to flip, which can effectively and greatly reduce the occurrence of erroneous flipping of the bucket, significantly reduce the false alarm data of the rain sensor, improve the reliability of the sensor, and ensure the accuracy of observation of the tipping bucket rain gauge in strong wind conditions.

[0026] Two filters are added at both ends of the damping bypass pipe, which increases the wind resistance and reduces the air volume entering the drainage bucket; it also achieves the effect of insect prevention, reducing the number of insects entering the sensor and affecting the reliability and accuracy of the sensor.

[0027] Advantages: In a working environment with strong winds, after the wind enters the windproof and insect-proof drainage pipe assembly, only a small part of the wind enters the drainage bucket, which can effectively and greatly reduce the occurrence of erroneous flipping of the bucket, significantly reduce the false alarm data of the rain sensor, improve the reliability of the sensor, and ensure the accuracy of the observation of the tipping bucket rain sensor in strong winds.

[0028] Two filters are added at both ends of the damping bypass pipe, which increases the wind resistance and reduces the air volume entering the drainage bucket; it also achieves the effect of insect prevention, reducing the number of insects entering the sensor and affecting the reliability and accuracy of the sensor.

[0029] The present invention has a simple structure and is easy to install and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the present invention.

[0031] Figure 2 This is a structural schematic diagram of Example 1 of the windproof and insect-proof drainage pipe assembly of the present invention.

[0032] Figure 3 This is a structural schematic diagram of Example 2 of the windproof and insect-proof drainage pipe assembly of the present invention.

[0033] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure.

[0034] Figure 5 This is a structural schematic diagram of Example 3 of the windproof and insect-proof drainage pipe assembly of the present invention.

[0035] In the figure, 1. Rain receiving inlet assembly; 2. Outer cylinder; 3. Base; 4. Water filling funnel; 5. Tipping bucket bracket; 6. Metering tipping bucket assembly; 7. Left tipping bucket tilting angle support assembly; 8. Right tipping bucket tilting angle support assembly; 9. Reed switch; 10. Level bubble; 11. Horizontal support plate; 12. Support plate horizontal adjustment device; 13. Drainage funnel; 14. Wind and insect-proof drainage pipe assembly; 6-1. Tipping bucket shaft; 6-2. Middle partition; 6-3. Left bucket chamber; 6-4. Right bucket chamber; 6-5. Permanent magnet; 14-1. Adapter; 14-2. Main flow pipe; 14-3. Damping bypass pipe; 14-4 Filter screen; 14-5. Leaking nozzle; 14-6. Left air guide surface; 14-7. Right air guide surface. Implementation Method

[0036] Example 1: Figure 1 The present invention discloses a high-efficiency windproof and insect-proof tipping bucket rain gauge with a damping and bypass structure, comprising: a rain receiving port assembly 1, an outer cylinder 2, a base 3, a water injection funnel 4, a tipping bucket bracket 5, a metering tipping bucket assembly 6, a left tipping bucket tilting support assembly 7, a right tipping bucket tilting support assembly 8, a reed switch 9, a leveling bubble 10, a horizontal support plate 11, a support plate horizontal adjustment device 12, and a drainage funnel 13;

[0037] The lower end of the outer tube 2 is connected to the base 3, and the upper end of the outer tube 2 is provided with a rain inlet assembly 1, which is inserted into the outer tube 2; a support plate horizontal adjustment device 12 is connected to the base 3, and a horizontal support plate 11 is connected to the support plate horizontal adjustment device 12; a tipping bucket bracket 5 is connected to the horizontal support plate 11, and a water injection funnel 4 is provided at the upper end of the tipping bucket bracket 5, and the water inlet of the water injection funnel 4 is located below the water outlet of the rain inlet assembly 1; a metering tipping bucket assembly 6 is connected to the tipping bucket bracket 5, and the metering tipping bucket assembly 6 is supported by the tipping bucket bracket 5 The metering bucket assembly 6 swings left and right; the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8 are connected to the horizontal support plate 11 below the metering bucket assembly 6, and the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8 are located on both sides of the fulcrum of the bucket bracket 5; a horizontal bubble 10 is connected between the left bucket tilt angle support assembly 7 and the right bucket tilt angle support assembly 8; there is a bucket shaft support on the bucket bracket 5, and the bucket shaft 6-1 is installed on the bucket shaft support; there are two drainage funnels 13 under the two bucket tips of the metering bucket assembly 6.

[0038] Among them, the metering bucket assembly 6 includes: a bucket shaft 6-1, a middle partition 6-2, a left bucket chamber 6-3, a right bucket chamber 6-4 and a permanent magnet 6-5; there is a middle partition 6-2 between the left bucket 6-3 and the right bucket 6-4, and the middle partition 6-2 separates the two buckets into the left bucket 6-3 and the right bucket 6-4. There is a bucket shaft 6-1 on the bottom surface of the bucket at the lower end of the middle partition 6-2; permanent magnets 6-5 are connected to the side walls of the left bucket 6-3 and the right bucket 6-4.

[0039] It also includes: a windproof and insect-proof drainage pipe assembly 14; the windproof and insect-proof drainage pipe assembly 14 is located below the drainage funnel 13 and communicates with the drainage funnel 13.

[0040] Figure 2 In the embodiment, the windproof and insect-proof drainage pipe assembly 14 includes: an adapter 14-1, a main pipe 14-2, a damping bypass pipe 14-3 and a filter 14-4; there is an adapter 14-1 directly above the main pipe 14-2, and the adapter 14-1 is connected to the drainage funnel 13; one end of the main pipe 14-2 is connected to the drainage funnel 13, and the other end is connected to the middle position of the damping bypass pipe 14-3; the filter 14-4 is arranged at both ends of the damping bypass pipe 14-3.

[0041] Example 2: Figure 3 、 Figure 4 In the embodiment, the windproof and insect-proof drainage pipe assembly 14 includes: an adapter 14-1, a main pipe 14-2, a damping bypass pipe 14-3 and a filter 14-4; there is an adapter 14-1 directly above the main pipe 14-2, and the adapter 14-1 is connected to the drainage funnel 13; one end of the main pipe 14-2 is connected to the drainage funnel 13, and the other end is connected to the middle position of the damping bypass pipe 14-3; the filter 14-4 is arranged at both ends of the damping bypass pipe 14-3.

[0042] It also includes: a leaking nozzle 14-5, a left air guide surface 14-6 and a right air guide surface 14-7; the leaking nozzle 14-5 is arranged at the intersection of the main pipe 14-2 and the damping bypass pipe 14-3; the left air guide surface 14-6 is arranged on the left side of the leaking nozzle 14-5; and the right air guide surface 14-6 is arranged on the right side of the leaking nozzle 14-5.

[0043] The rest is the same as in Example 1.

[0044] Example 3: Figure 5 There are three windproof and insect-proof drainage pipe assemblies 14, and the three windproof and insect-proof drainage pipe assemblies 14 have the same structure, including: a transfer interface 14-1, a main pipe 14-2, a damping bypass pipe 14-3 and a filter 14-4; there is a transfer interface 14-1 directly above the main pipe 14-2; one end of the main pipe 14-2 is connected to the drainage funnel 13, and the other end is connected to the middle position of the damping bypass pipe 14-3; the filter 14-4 is arranged at both ends of the damping bypass pipe 14-3.

[0045] The adapter 14-1 of a main pipe 14-2 is connected to the drainage funnel 13, and the two ends of the damping bypass pipe 14-3 of the main pipe 14-2 are respectively connected to the main pipe 14-2 adapter 14-1 of the other two wind-proof and insect-proof drainage pipe assemblies 14; the connection state of the other two wind-proof and insect-proof drainage pipe assemblies 14 is horizontal, vertical or any other angle, and the damping bypass pipes 14-3 of the other two wind-proof and insect-proof drainage pipe assemblies 14 are connected to the filter 14-4.

[0046] During application, when the rain gauge is working in a strong wind environment, the other two damping bypass pipes have different windward angles at their openings. Most of the wind entering the windproof and insect-proof drainage pipe assembly will be discharged through the other end of the damping bypass pipe. The small amount of wind that enters will hardly cause the bucket to flip, which greatly reduces the possibility of accidental flipping of the bucket, improves the reliability of the sensor, and ensures the accuracy of observation of the tipping bucket rain gauge in strong winds.

[0047] Adding a filter at each end of the damping bypass pipe, or placing a filter inside the damping bypass pipe, not only increases wind resistance, but also plays a role in preventing insects; and improves the reliability and accuracy of the sensor.

[0048] The rest is the same as in Example 1.

Claims

1. A high-efficiency windproof and insect-proof tipping bucket rain gauge with a damping and bypass structure, comprising: A rain inlet assembly, an outer cylinder, a base, a water injection funnel, a bucket bracket, a metering bucket assembly, a left bucket tilt support assembly, a right bucket tilt support assembly, a reed switch, a horizontal bubble, a horizontal support plate, a support plate horizontal adjustment device, and a drainage funnel; wherein the metering bucket assembly includes: a bucket shaft, a middle partition, a left bucket chamber, a right bucket chamber, and a permanent magnet; The utility model is characterized in that: it further comprises: a windproof and insect-proof drainage pipe assembly; the windproof and insect-proof drainage pipe assembly is located below the drainage funnel and communicates with the drainage funnel; The windproof and insect-proof drainage pipe assembly includes: an adapter, a main pipe, a damping bypass pipe, and a filter screen. A adapter is located directly above the main pipe and is connected to a drainage funnel. One end of the main pipe is connected to the drainage funnel, and the other end is connected to the middle of the damping bypass pipe. Filter screens are installed at both ends of the damping bypass pipe. The windproof and insect-proof drainage pipe assembly also includes: a leaking nozzle, a left air guide surface and a right air guide surface; the leaking nozzle is arranged at the junction of the main pipe and the damping bypass pipe; the left air guide surface is arranged on the left side of the leaking nozzle; and the right air guide surface is arranged on the right side of the leaking nozzle.

2. The high-efficiency windproof and insect-proof tipping bucket rain gauge with a damping and bypass structure according to claim 1 is characterized by: There are three windproof and insect-proof drainage pipe assemblies, and the structures of the three windproof and insect-proof drainage pipe assemblies are the same; the adapter of a main pipe is connected to the drainage funnel, and the two ends of the damping bypass pipe of the main pipe are respectively connected to the main pipe adapters of the other two windproof and insect-proof drainage pipe assemblies. The connection state of the two windproof and insect-proof drainage pipe assemblies is horizontal, vertical or any other angle, and the damping bypass pipes of the other two windproof and insect-proof drainage pipe assemblies are connected to filters.

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