A high efficiency filtering and easy cleaning rain sensor rain mouth assembly

Abstract

A high-efficiency filtering and easy-to-clean rain gauge sensor inlet assembly belongs to the category of rain gauge sensor assemblies. It includes: a rain gauge inlet, an outer filter, an inner filter, and a stepped funnel; the outer filter is located inside the lower ring of the rain gauge inlet; the inner filter is located inside the outer filter, inside the lower ring of the stepped funnel, and is firmly connected to the stepped funnel; the stepped funnel is fitted over the lower ring of the rain gauge inlet at the bottom; it also includes: a connecting device; the connecting device is located above the outer filter and firmly connects the outer and inner filters; the connecting device is a fixing screw or a fixing clip. Advantages: superior filtration effect; the dual filtration mechanism can intercept debris of different sizes, effectively improving the accuracy and reliability of the rain gauge sensor; convenient installation and maintenance; both the outer and inner filters can be removed from the inside or bottom of the rain gauge inlet, making subsequent cleaning and maintenance simpler and more efficient, reducing maintenance costs and time.

Description

Technical Field

[0001] This utility model relates to the field of rain gauge technology, and in particular to a rain gauge rain inlet assembly that is highly efficient in filtering and easy to clean. Background Technology

[0002] Rain gauges are the most widely used precipitation measurement instruments in the world today. The well-known advantages of rain gauges are: simple structure, long lifespan, low price, no power consumption, and remote sensing capabilities. They are widely used in various fields such as hydrology, water conservancy, agriculture, meteorology, flood control and disaster reduction, and transportation.

[0003] Rainfall sensors are indispensable core devices in meteorological monitoring, hydrological observation, agricultural irrigation, and urban flood control. They collect natural precipitation through rain-collecting inlet components and convert it into electrical signals to accurately measure rainfall (units: mm / min or mm / h). The design of the rain-collecting inlet component directly affects the sensor's measurement accuracy and long-term reliability. However, traditional rain-collecting inlet components have long faced a thorny problem in practical applications: interference from external debris on the device's function. This problem is particularly prominent in unattended monitoring stations in the field (such as mountainous areas, forests, or farmland) and urgently needs to be solved through technological innovation.

[0004] Traditional rain gauges are susceptible to environmental factors during long-term use. Debris such as leaves, dust, and insects can easily enter the rain collection port, causing filter blockage or rainwater retention, which affects measurement accuracy.

[0005] Existing rain sensor rain inlet assemblies, Figure 12 The system includes: a rain-collecting inlet 1, a single-layer filter screen 7, a filter screen retaining ring 8, and a small funnel 9. The rain-collecting inlet 1 includes: an annular cutting edge 1-1 and a lower conical funnel 1-2. The upper part of the rain-collecting inlet 1 is the annular cutting edge 1-1, and the lower part is the lower conical funnel 1-2. At the end of the lower conical funnel 1-2, there is a lower conical funnel opening. A small funnel 9 is connected to the outside of the lower conical funnel 1-2 at the bottom of the rain-collecting inlet. A single-layer filter screen 7 is connected inside the lower conical funnel 1-2 at the bottom of the rain-collecting inlet. A filter screen retaining ring 8 is connected in the gap between the single-layer filter screen 7 and the lower conical funnel 1-2. The filter screen design of the rain-collecting inlet 1 is mostly a planar structure or a simple single-layer filter. The existing solution uses special tools to install and remove the filter screen. When cleaning debris, the entire component needs to be disassembled, which is cumbersome and has low maintenance efficiency. Especially in harsh environments, frequent maintenance work increases labor costs and equipment failure rate. Therefore, developing a rain inlet assembly that can efficiently filter impurities and is easy to clean and maintain has become a key requirement for improving the stability and measurement accuracy of rain sensors.

[0006] In summary, the shortcomings and deficiencies of the known rain gauge technology are: Traditional rain gauges often suffer from filter blockage or rainwater trapping due to external factors, which affects measurement accuracy.

[0007] Existing solutions require specialized tools to install and remove the filter screen. Cleaning debris requires disassembling the entire component, which is cumbersome and inefficient. In harsh environments, frequent maintenance increases labor costs and equipment failure rates. Utility Model Content

[0008] The purpose of this invention is to overcome the shortcomings and deficiencies of the prior art, namely the problems of easy clogging and difficulty in cleaning in traditional technical solutions, and to provide a rain sensor rain inlet assembly that is highly efficient in filtering and easy to clean, thereby solving the problem of further improving the accuracy and reliability of rain sensors.

[0009] To achieve the above objectives, the rain collection port assembly of the rain sensor of this utility model includes: a rain collection port, an outer filter, an inner filter, and a stepped funnel; the outer filter is disposed inside the rain collection port and located inside the lower ring of the rain collection port; the inner filter is disposed inside the outer filter and located inside the lower ring of the stepped funnel, and is firmly connected to the stepped funnel; the stepped funnel is fitted around the lower ring of the rain collection port at the bottom of the rain collection port.

[0010] It also includes: a connecting device; the connecting device is located above the outer filter screen and firmly connects the outer filter screen and the inner filter screen; the connecting device is a fixing screw or a fixing clip.

[0011] The rain-collecting opening includes: an annular cutting edge, a lower conical funnel, and a lower annular opening for collecting rainwater; the upper part of the rain-collecting opening is an annular cutting edge, the lower part is a lower conical funnel, and the lower annular opening for collecting rainwater is located below the lower conical funnel.

[0012] The rain-collecting opening includes: an annular cutting edge, a lower conical funnel, a lower annular opening for rain collection, and an annular concave platform; the annular cutting edge, the lower conical funnel, and the lower annular opening for rain collection; the upper part of the rain-collecting opening is an annular cutting edge, the lower part is a lower conical funnel, and the lower annular opening for rain collection is located below the lower conical funnel; the annular concave platform is located inside the lower annular opening for rain collection.

[0013] The external filter screen includes: an external filter screen cover, an external filter screen body, and an external filter screen annular reinforcing ring; the external filter screen cover has an upper conical and lower circular ring structure; the external filter screen body has a cylindrical filtration structure, with the external filter screen cover connected to the upper part and the external filter screen annular reinforcing ring connected to the lower part.

[0014] The external filter screen includes: an external filter screen cover, an external filter screen body, an external filter screen annular reinforcing ring, and an external filter screen fixing hole; the external filter screen cover has an upper conical and lower circular ring structure; the external filter screen body has a cylindrical filter structure, with the external filter screen cover connected at the top and the external filter screen annular reinforcing ring connected at the bottom; the external filter screen fixing hole is located at the top of the conical part of the external filter screen cover.

[0015] The inner filter screen includes: an inner filter screen cover, an inner filter screen body, and an inner filter screen annular reinforcing ring; the inner filter screen cover has an upper flat surface and a lower circular ring structure; the inner filter screen body has a cylindrical filter structure, with the inner filter screen cover connected to the upper part and the inner filter screen annular reinforcing ring connected to the lower part.

[0016] The inner filter screen includes: an inner filter screen cover, an inner filter screen body, an inner filter screen annular reinforcing ring, and a fixing threaded hole; the inner filter screen cover has an upper flat surface and a lower circular ring structure; the inner filter screen body has a cylindrical filter structure, with the inner filter screen cover connected to the upper surface and the inner filter screen annular reinforcing ring connected to the lower surface; the fixing threaded hole is located on the upper surface of the inner filter screen cover.

[0017] The stepped funnel comprises: an upper ring opening, an upper conical water inlet surface, a lower ring opening, a lower conical water inlet surface, and a leak nozzle; the upper ring opening, the upper conical water inlet surface, the lower ring opening, the lower conical water inlet surface, and the leak nozzle are connected sequentially.

[0018] The mesh size of the outer filter screen is larger than that of the inner filter screen.

[0019] This technical solution has significant beneficial effects. By adopting the above-mentioned innovative technical solution, the problems of easy clogging and difficulty in cleaning existing in traditional technical solutions are effectively solved, thus further improving the accuracy and reliability of the rain sensor.

[0020] Specifically, this utility model adopts a dual filtration mechanism in its structural design: when leaves, willow catkins, and other debris fall into the rain collection inlet, they are first initially filtered by the outer filter with a larger mesh size, intercepting and separating larger debris; then, smaller debris particles are filtered a second time through the inner filter with a relatively smaller mesh size. This tiered filtration design not only greatly reduces the risk of clogging, but also improves the accuracy and reliability of the rain sensor, effectively reducing the frequency of maintenance and extending the service life of the equipment.

[0021] This utility model features a dual-filter design. The outer filter is connected inside the rain-collecting opening and can be removed directly from inside the opening. The inner filter is connected to a stepped funnel and can be removed from below the rain-collecting opening along with the stepped funnel, making subsequent cleaning and maintenance work simpler and more efficient.

[0022] Advantages: Firstly, superior filtration. The dual filtration mechanism intercepts debris of different sizes in stages. Large debris is first filtered by the outer filter, and then small particles are filtered by the inner filter, making the rainwater entering the rainwater harvesting system purer. This reduces the impact of impurities on subsequent equipment, improves the accuracy and reliability of the rain gauge, effectively reduces the frequency of maintenance, and extends the service life of the equipment.

[0023] Secondly, installation and maintenance are convenient. The outer filter is connected inside the rain inlet and can be removed directly from inside the rain inlet; the inner filter is connected to the stepped funnel and can be removed together with the stepped funnel from below the rain inlet, making subsequent cleaning and maintenance work simpler and more efficient, reducing maintenance costs and time. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the rain-collecting inlet component of this utility model.

[0025] Figure 2 This is a schematic diagram of the structure of the technical solution of Embodiment 3 of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the technical solution of Embodiment 4 of this utility model.

[0027] Figure 4 This is a structural schematic diagram of the technical solution of Embodiment 5 of this utility model.

[0028] Figure 5 This is a schematic diagram of the technical solution of Embodiment 6 of this utility model.

[0029] Figure 6 This is a schematic diagram of the structure of the technical solution of Embodiment 7 of this utility model.

[0030] Figure 7 This is a schematic diagram of the structure of the rain-collecting opening of this utility model.

[0031] Figure 8 This is a schematic diagram of the structure of the external filter screen of this utility model.

[0032] Figure 9 This is a schematic diagram of the structure of the internal filter screen of this utility model.

[0033] Figure 10 This is a schematic diagram of the stepped funnel structure of this utility model.

[0034] Figure 11 This is a schematic diagram of the internal and external mesh fixing bracket of this utility model.

[0035] Figure 12 This is a schematic diagram of the technical solution structure of the existing technology.

[0036] In the diagram: 1. Rain inlet; 2. Outer filter screen; 3. Inner filter screen; 4. Stepped funnel; 5. Fixing screw; 6. Inner and outer mesh fixing bracket; 7. Single-layer filter screen; 8. Filter screen retaining ring; 9. Small funnel.

[0037] 1-1. Annular cutting edge; 1-2. Lower conical funnel; 1-3. Lower annular opening for collecting rainwater; 1-4. Annular concave platform.

[0038] 2-1. Outer filter screen cover; 2-2. Fixing hole; 2-3. Outer filter screen body; 2-4. Outer filter screen annular reinforcing ring.

[0039] 3-1. Inner filter screen cover; 3-2. Fixing threaded hole; 3-3. Inner filter screen body; 3-4. Inner filter screen annular reinforcing ring.

[0040] 4-1. Upper ring opening of the stepped funnel; 4-2. Upper conical water intake surface; 4-3. Lower ring opening of the stepped funnel; 4-4. Lower conical water intake surface; 4-5. Leak nozzle.

[0041] 6-1. Gate-shaped bracket; 6-2. Fixing plate; 6-3. Nut. Detailed Implementation

[0042] Example 1: The rain collection port assembly of the rain sensor of this utility model includes: a rain collection port 1, an outer filter 2, an inner filter 3, and a stepped funnel 4; the outer filter 2 is disposed inside the rain collection port 1, located inside the lower ring 1-3 of the rain collection port 1; the inner filter 3 is disposed inside the outer filter 2, located inside the lower ring 4-3 of the stepped funnel 4, and is firmly connected to the stepped funnel 4; the stepped funnel 4 is fitted around the lower ring 1-3 of the rain collection port at the bottom of the rain collection port 1.

[0043] The rain-collecting opening 1 includes: an annular cutting edge 1-1, a lower conical funnel 1-2, and a lower annular opening 1-3; the upper part of the rain-collecting opening 1 is the annular cutting edge 1-1, the lower part is the lower conical funnel 1-2, and the lower annular opening 1-3 is located below the lower conical funnel 1-2.

[0044] The external filter 2 includes: an external filter cover 2-1, an external filter body 2-3, and an external filter annular reinforcing ring 2-4; the external filter cover 2-1 has an upper conical and lower circular structure; the external filter body 2-3 has a cylindrical filter structure, with the external filter cover 2-1 connected to the top and the external filter annular reinforcing ring 2-4 connected to the bottom.

[0045] The inner filter 3 includes: an inner filter cover 3-1, an inner filter body 3-3, and an inner filter annular reinforcing ring 3-4; the inner filter cover 3-1 has an upper flat surface and a lower circular ring structure; the inner filter body 3-3 is a cylindrical filter structure, with the inner filter cover 3-1 connected to the top and the inner filter annular reinforcing ring 3-4 connected to the bottom.

[0046] The stepped funnel 4 includes: an upper ring opening 4-1, an upper conical water inlet 4-2, a lower ring opening 4-3, a lower conical water inlet 4-4, and a spout 4-5; the upper ring opening 4-1, the upper conical water inlet 4-2, the lower ring opening 4-3, the lower conical water inlet 4-4, and the spout 4-5 are connected in sequence.

[0047] The mesh size of the outer filter screen 2-3 is larger than that of the inner filter screen 3-3.

[0048] Example 2: In the rain sensor rain inlet assembly described in Example 1, which is highly efficient in filtering and easy to clean, the rain inlet 1 includes: an annular blade 1-1, a lower conical funnel 1-2, a lower annular opening 1-3, and an annular recess 1-4; the annular blade 1-1, the lower conical funnel 1-2, and the lower annular opening 1-3; the upper part of the rain inlet 1 is the annular blade 1-1, and the lower part is the lower conical funnel 1-2, with the lower annular opening 1-3 below the lower conical funnel 1-2; the annular recess 1-4 is disposed inside the lower annular opening 1-3.

[0049] Everything else is the same as in Example 1.

[0050] Example 3: The rain sensor rain inlet assembly described in Example 1, which features high-efficiency filtration and easy cleaning, is... Figure 2 The system also includes a connecting device 5; the connecting device 5 is located above the outer filter screen 2 and securely connects the outer filter screen 2 and the inner filter screen 3; the connecting device 5 is a fixing screw 5-1.

[0051] The external filter 2 includes: an external filter cover 2-1, an external filter body 2-3, and an external filter annular reinforcing ring 2-4; it also includes: an external filter fixing hole 2-2; the external filter fixing hole 2-2 is located at the top of the conical top of the external filter cover 2-1.

[0052] The inner filter 3 includes: an inner filter cover 3-1, an inner filter body 3-3, and an inner filter annular reinforcing ring 3-4; it also includes: a fixing threaded hole 3-2; the fixing threaded hole 3-2 is disposed on the inner filter cover 2-1.

[0053] Everything else is the same as in Example 1.

[0054] Example 4: The rain sensor rain inlet assembly described in Example 1, which features high-efficiency filtration and easy cleaning, is... Figure 3 The system also includes a connecting device 5; the connecting device 5 is located above the outer filter screen 2 and securely connects the outer filter screen 2 and the inner filter screen 3; the connecting device 5 is a fixing clip 5-2.

[0055] Everything else is the same as in Example 1.

[0056] Example 5: The rain inlet assembly for a high-efficiency filtering and easy-to-clean rain sensor further includes: a connecting device 5; in Figure 4 In this process, the connecting device 5 is located above the outer filter screen 2, and firmly connects the outer filter screen 2 and the inner filter screen 3; the connecting device 5 is a fixing screw 5-1.

[0057] The rain-collecting opening 1 includes: an annular cutting edge 1-1, a lower conical funnel 1-2, a lower annular opening 1-3, and an annular recess 1-4; the annular cutting edge 1-1, the lower conical funnel 1-2, and the lower annular opening 1-3; the upper part of the rain-collecting opening 1 is the annular cutting edge 1-1, and the lower part is the lower conical funnel 1-2, with the lower annular opening 1-3 below the lower conical funnel 1-2; the annular recess 1-4 is located inside the lower annular opening 1-3.

[0058] The external filter 2 includes: an external filter cover 2-1, an external filter body 2-3, an external filter annular reinforcing ring 2-4, and an external filter fixing hole 2-2; the external filter cover 2-1, the external filter body 2-3, and the external filter annular reinforcing ring 2-4; the external filter cover 2-1 has an upper conical and lower circular structure; the external filter body 2-3 has a cylindrical filter structure, with the external filter cover 2-1 connected at the top and the external filter annular reinforcing ring 2-4 connected at the bottom; the external filter fixing hole 2-2 is located at the top of the conical part of the external filter cover 2-1.

[0059] The inner filter screen 3 includes: an inner filter screen cover 3-1, an inner filter screen body 3-3, an inner filter screen annular reinforcing ring 3-4, and a fixing threaded hole 3-2; the inner filter screen cover 3-1, the inner filter screen body 3-3, and the inner filter screen annular reinforcing ring 3-4; the inner filter screen cover 3-1 has an upper flat surface and a lower circular ring structure; the inner filter screen body 3-3 has a cylindrical filter structure, with the inner filter screen cover 3-1 connected to the upper part and the inner filter screen annular reinforcing ring 3-4 connected to the lower part; the fixing threaded hole 3-2 is located on the upper part of the inner filter screen cover 3-1.

[0060] Everything else is the same as in Example 1.

[0061] Example 6: The rain inlet assembly for a high-efficiency filtering and easy-to-clean rain sensor further includes: a connecting device 5; in Figure 5 In this process, the connecting device 5 is positioned above the outer filter screen 2 to securely connect the outer filter screen 2 and the inner filter screen 3; the connecting device 5 is a fixing clip 5-2.

[0062] The rain-collecting opening 1 includes: an annular cutting edge 1-1, a lower conical funnel 1-2, a lower annular opening 1-3, and an annular recess 1-4; the annular cutting edge 1-1, the lower conical funnel 1-2, and the lower annular opening 1-3; the upper part of the rain-collecting opening 1 is the annular cutting edge 1-1, and the lower part is the lower conical funnel 1-2, with the lower annular opening 1-3 below the lower conical funnel 1-2; the annular recess 1-4 is located inside the lower annular opening 1-3.

[0063] Everything else is the same as in Example 1.

[0064] Example 7: In the rain inlet assembly of a rain sensor that is highly efficient in filtration and easy to clean as described in Example 1, the stepped funnel 4 is fitted outside the lower ring 1-3 of the rain inlet 1 at the bottom of the rain inlet, and the two parts are firmly connected.

[0065] It also includes: internal and external mesh fixing brackets 6; in Figure 6 In the middle, the inner and outer mesh fixing bracket 6 is fixed on the lower conical water inlet surface 4-4 of the stepped funnel 4.

[0066] The inner and outer mesh fixing bracket 6 includes: a gate-shaped bracket 6-1, a fixing plate 6-2, and a nut 6-3; the fixing plate 6-2 is connected to the lower end of the gate-shaped bracket 6-1, and the nut 6-3 is fixed to the upper end of the gate-shaped bracket 6-1; It also includes: a connecting device 5; the connecting device 5 is set above the outer filter screen 2 to firmly connect the outer filter screen 2 and the inner filter screen 3; the connecting device 5 is a fixing screw 5-1; the fixing screw 5-1 passes through the outer filter screen fixing hole 2-2 of the outer filter screen 2, the inner filter screen fixing hole 3-5 of the inner filter screen 3 and the nut 6-3 at the upper end of the inner and outer screen fixing bracket 6, and firmly connects the three.

[0067] The external filter 2 includes: an external filter cover 2-1, an external filter body 2-3, and an external filter annular reinforcing ring 2-4; it also includes: an external filter fixing hole 2-2; the external filter fixing hole 2-2 is located at the top of the conical top of the external filter cover 2-1.

[0068] The inner filter 3 includes: an inner filter cover 3-1, an inner filter body 3-3, and an inner filter annular reinforcing ring 3-4; it also includes: an inner filter fixing hole 3-5; the inner filter fixing hole 3-5 is disposed on the upper part of the inner filter cover 2-1.

[0069] Everything else is the same as in Example 1.

Claims

1. A high efficiency filtered and easy to clean rain sensor rain lip assembly comprising: The rain-collecting inlet consists of an outer filter, an inner filter, and a stepped funnel. The outer filter is located inside the rain-collecting inlet, within the lower ring of the rain-collecting inlet. The inner filter is located inside the outer filter, within the lower ring of the stepped funnel, and is firmly connected to the stepped funnel. The stepped funnel is fitted around the bottom of the rain-collecting inlet, outside the lower ring of the rain-collecting inlet.

2. The high efficiency filtered and easy to clean rain sensor rain inlet assembly of claim 1 further characterized by include: A connecting device; the connecting device is located above the outer filter screen and securely connects the outer filter screen and the inner filter screen; the connecting device is a fixing screw or a fixing clip.

3. The high efficiency filtered and easy to clean rain sensor deflector assembly of claim 1 wherein: The rain-collecting opening includes: an annular cutting edge, a lower conical funnel, and a lower annular opening for collecting rainwater; the upper part of the rain-collecting opening is an annular cutting edge, the lower part is a lower conical funnel, and the lower annular opening for collecting rainwater is located below the lower conical funnel.

4. The rain sensor rain inlet assembly with high-efficiency filtration and easy cleaning according to claim 1, characterized in that: The rain-collecting opening includes: an annular cutting edge, a lower conical funnel, a lower annular opening for rain collection, and an annular concave platform; the annular cutting edge, the lower conical funnel, and the lower annular opening for rain collection; the upper part of the rain-collecting opening is an annular cutting edge, the lower part is a lower conical funnel, and the lower annular opening for rain collection is located below the lower conical funnel; the annular concave platform is located inside the lower annular opening for rain collection.

5. The high efficiency filtered and easy to clean rain sensor deflector assembly of claim 1 wherein: The external filter screen includes: an external filter screen cover, an external filter screen body, and an external filter screen annular reinforcing ring; the external filter screen cover has an upper conical and lower circular ring structure; the external filter screen body has a cylindrical filtration structure, with the external filter screen cover connected to the upper part and the external filter screen annular reinforcing ring connected to the lower part.

6. The high efficiency filtered and easy to clean rain sensor deflector assembly of claim 1 wherein: The external filter screen includes: an external filter screen cover, an external filter screen body, an external filter screen annular reinforcing ring, and an external filter screen fixing hole; the external filter screen cover has an upper conical and lower circular ring structure; the external filter screen body has a cylindrical filter structure, with the external filter screen cover connected at the top and the external filter screen annular reinforcing ring connected at the bottom; the external filter screen fixing hole is located at the top of the conical part of the external filter screen cover.

7. The high efficiency filtered and easy to clean rain sensor rain inlet assembly of claim 1 wherein: The inner filter screen includes: an inner filter screen cover, an inner filter screen body, and an inner filter screen annular reinforcing ring; the inner filter screen cover has an upper flat surface and a lower circular ring structure; the inner filter screen body has a cylindrical filter structure, with the inner filter screen cover connected to the upper part and the inner filter screen annular reinforcing ring connected to the lower part.

8. The high efficiency filtered and easy to clean rain sensor deflector assembly of claim 1 wherein: The inner filter screen includes: an inner filter screen cover, an inner filter screen body, an inner filter screen annular reinforcing ring, and a fixing threaded hole; the inner filter screen cover has an upper flat surface and a lower circular ring structure; the inner filter screen body has a cylindrical filter structure, with the inner filter screen cover connected to the upper part and the inner filter screen annular reinforcing ring connected to the lower part; the fixing threaded hole is located on the upper part of the inner filter screen cover.

9. The high efficiency filtered and easy to clean rain sensor rain inlet assembly of claim 1 wherein: The stepped funnel comprises: an upper ring opening, an upper conical water inlet surface, a lower ring opening, a lower conical water inlet surface, and a leak nozzle; the upper ring opening, the upper conical water inlet surface, the lower ring opening, the lower conical water inlet surface, and the leak nozzle are connected sequentially.

10. A high efficiency filtered and easy to clean rain sensor rain lip assembly according to claim 5 or 6, characterized in that: The mesh size of the outer filter screen is larger than that of the inner filter screen.

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