Rainwater splash-proof high-precision collection measuring device

Abstract

The application discloses a rainwater splash-proof high-precision collection measuring device, belonging to the technical field of measurement, which comprises a container body, a rain collecting opening is arranged at the upper portion of the container body, a vertebra type rain collecting bucket is integrally connected to the lower portion of the container body, and a drain opening is arranged at the bottom of the vertebra type rain collecting bucket; a splash-proof net is detachably arranged in the container body, a support platform edge for supporting the splash-proof net is arranged on the inner wall of the container body and located above the vertebra type rain collecting bucket; a collection unit is connected to the lower portion of the container body and located below the drain opening; and a measuring unit is electrically connected with a magnetic force sensor. The height of the splash-proof net to the rain collecting opening is lower than the height of a conventional design, the overall structure is better optimized, the falling rainwater is scattered and divided into numerous tiny raindrops through the design of the splash-proof net, the kinetic energy of the raindrops is reduced, the impact area is reduced, the accuracy of rainwater collection is improved, and the measurement result is more reliable.

Description

Technical Field

[0001] This invention belongs to the field of measurement technology and relates to a high-precision rainwater collection and measurement device that prevents splashing. Background Technology

[0002] Traditional rainwater collection methods involve using large or tall buckets. When rainwater falls into these buckets, it splashes, and some of it splashes out, reducing the amount of rainwater collected and leading to inaccurate measurements. Furthermore, these large or tall buckets require bulky structures to collect rainwater effectively, and they are inconvenient to move each time, especially in remote mountainous areas where it is difficult to walk, making on-site operations even more troublesome.

[0003] To better facilitate rainwater collection, a small-volume structure with a height of about 50mm has been designed. This structure does prevent a large amount of rainwater from splashing when collecting light to moderate rain. However, when rainwater is falling rapidly in heavy rain, some of it will splash up to a height of more than 50mm, resulting in a reduction in the final volume of rainwater collected and inaccurate measurement data.

[0004] Therefore, there is an urgent need to design a device with splash-proof function and high-precision rainwater collection to better achieve the accuracy of rainwater volume collection and measurement. Summary of the Invention

[0005] This invention provides a high-precision rainwater collection and measurement device with splash protection, which aims to solve the problem that existing rainwater collection devices lack splash protection, resulting in large deviations in rainwater volume measurement data and inaccurate data measurement.

[0006] To achieve the above objectives, the present invention provides a high-precision rainwater splash-proof collection and measurement device, comprising:

[0007] The container body has a rain inlet at the top, which is set according to a standard water receiving area. A cone-shaped rain collection hopper is integrally connected to the bottom of the container body, and a drain outlet is provided at the bottom of the cone-shaped rain collection hopper.

[0008] A splash guard is detachably installed inside the container. The inner wall of the container is provided with a support platform for supporting the splash guard, and the support platform is located above the conical rainwater collection hopper.

[0009] A collection unit is provided at the lower part of the container body. The collection unit is located below the drain outlet. The collection unit includes a base, a standard quantity tipping container, a magnet, and a magnetic sensor. The bottom of the container body is provided with a base. The base is provided with a swingable standard quantity tipping container. The upper end of the standard quantity tipping container is located directly below the drain outlet. A magnet is provided on the side of the bottom surface of the standard quantity tipping container. A magnetic sensor is provided on the base.

[0010] The measuring unit is electrically connected to the magnetic sensor and is used to receive the pulse signal from the magnetic sensor and calculate the actual water intake and splash prevention rate under the rated unit.

[0011] Preferably, the splash guard includes a narrow metal frame, a fine metal mesh, and a handle. The narrow metal frame is fixedly installed with the fine metal mesh covering the entire area. Handles are provided on both sides of the narrow metal frame. The fine metal mesh has a mesh size of 50-100. The surface of the splash guard is coated with a hydrophobic coating to reduce the adhesion of rainwater to the surface of the fine mesh and accelerate the falling of rainwater.

[0012] Preferably, the outer contour edge of the metal narrow frame is integrally connected with a downward-folded flat-pressed flange or metal edging to prevent the edge from scratching the hand.

[0013] Preferably, the narrow metal frame is integrally formed by injection molding and has an embedded edge to prevent the edge from scratching your hand.

[0014] Preferably, the inner wall of the conical rainwater collection hopper is provided with a plurality of guide grooves, which extend from top to bottom and are connected to the drain outlet, for guiding rainwater falling through the splash net to converge at the drain outlet, thereby reducing the residue of rainwater on the inner wall of the conical rainwater collection hopper.

[0015] Preferably, the support platform includes a first support side and a second support side arranged opposite to each other, the first support side being higher than the second support side, and the two sides of the splash net being respectively placed on the first support side and the second support side, so that the splash net forms an inclination angle of 10-45°, so as to reduce the positive pressure impact of rainwater on the fine metal mesh and reduce water accumulation.

[0016] Preferably, when the rainwater collected by the standard-capacity tipping container reaches a preset weight, the magnet and the magnetic sensor magnetically engage to trigger the standard-capacity tipping container to swing downwards to discharge the rainwater. At the same time, the magnetic sensor sends one pulse signal to the measuring unit and calculates the actual water volume collected. The actual water volume collected is calculated using the formula: Vactual = Vbucket × n, where Vactual is the actual water volume collected, Vbucket is the standard capacity of the standard-capacity tipping container, and n is the number of times the standard-capacity tipping container swings based on the accumulated pulse signals, and n is a positive integer.

[0017] Preferably, the actual rainfall is calculated based on the obtained actual water volume, wherein the actual rainfall is calculated using the formula: h = Vactual / S, where h is the actual rainfall and S is the standard water-receiving area of ​​the rain inlet.

[0018] Preferably, the measuring unit calculates the total actual rainfall volume V_total by the number of pulse signals received within 5 minutes, wherein the measuring unit pre-stores a standard simulated rainfall volume V_standard of 25.4 mL / 5 min.

[0019] Preferably, the measuring unit calculates the actual water loss rate within 5 minutes based on the actual total rainfall volume Vtotal and the standard simulated rainfall volume Vstandard, using the formula Ploss = (Vstandard - Vtotal) / Vstandard × 100%, where Ploss is the actual water loss rate and Vstandard = 25.4 mL. Based on the obtained actual water loss rate, the splash protection rate of the collected rainwater is calculated using the formula η = (Pnet - Pactual) / Pnet × 100%, where Pnet = 9.4% is the target water loss rate of the preset splash protection net, and η is the splash protection rate, used to quantify the splash protection effect of the splash protection net.

[0020] The advantages of this invention over the prior art are:

[0021] This invention provides a high-precision rainwater splash-proof collection and measurement device. By designing a splash-proof net, the falling rainwater is broken into countless tiny droplets, reducing the kinetic energy of the droplets. The linear mesh structure also reduces the effective impact area, allowing the surface tension of the raindrops to easily bind them and prevent them from splashing outwards when they come into contact with the surface of the splash-proof net. This significantly improves the accuracy of rainwater collection and makes the measurement results more reliable. Furthermore, the height from the splash-proof net to the rainwater collection port is lower than that of traditional designs, resulting in a better overall structure and improved accuracy of rainwater collection.

[0022] To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0024] Figure 2 This is an exploded structural diagram of the present invention;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of the present invention;

[0026] Figure 4 This is a cross-sectional structural schematic diagram of the present invention;

[0027] Figure 5 This is a schematic diagram of the splash guard in this invention;

[0028] Figure 6 This is a schematic diagram of the three-dimensional structure of the splash guard in this invention;

[0029] Figure 7 In this invention Figure 5 A magnified view of the splash guard at point A in the middle;

[0030] Figure Labels

[0031] 1. Container body; 2. Rain inlet; 3. Conical rain collection hopper; 4. Drain outlet; 5. Splash screen; 6. Support edge; 7. Collection unit; 8. Base; 9. Standard volume tipping container; 10. Narrow metal frame; 11. Fine metal mesh; 12. Handle; 13. Flat-pressed flange; 14. Guide channel; 15. First support edge; 16. Second support edge. Detailed Implementation

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] To achieve the above objectives, embodiments of the present invention provide a high-precision rainwater splash-proof collection and measurement device, referencing... Figure 1-7 As shown, it includes:

[0035] The container body 1 has a rain inlet 2 at the top, which is set according to the standard water receiving area. The container body 1 is integrally connected to a cone-shaped rain collection hopper 3 at the bottom, and the bottom of the cone-shaped rain collection hopper 3 is provided with a drain outlet 4.

[0036] A splash screen 5 is detachably installed inside the container body 1. The inner wall of the container body 1 is provided with a support edge 6 for supporting the splash screen 5. The support edge 6 is located above the conical rain collection hopper 3.

[0037] The collection unit 7 is connected to the lower part of the container body 1. The collection unit 7 is located below the drain outlet 4. The collection unit 7 includes a base 8, a standard quantity tipping container 9, a magnet, and a magnetic sensor. The bottom of the container body 1 is provided with a base 8. The base 8 is provided with a swingable standard quantity tipping container 9. The upper end of the standard quantity tipping container 9 is located directly below the drain outlet 4. A magnet is provided on the side of the bottom surface of the standard quantity tipping container 9. A magnetic sensor is provided on the base 8.

[0038] The measuring unit is electrically connected to the magnetic sensor and is used to receive the pulse signal from the magnetic sensor and calculate the actual water intake and splash protection rate under the rated unit.

[0039] In this embodiment, the standard water contact area meets the requirements of meteorological monitoring equipment, with a standard water contact area of ​​5373 mm². The magnet uses a neodymium iron boron strong magnet with sensitive magnetic attraction response. Traditionally, the height needs to be maintained above 50 mm to prevent splashing. In this embodiment, the height from the splash guard 5 to the rain inlet 2 is 8-10 mm, which reduces the loss of rainwater adhering to the inner wall area when light rain falls. By designing the splash guard 5, the falling rainwater is dispersed and divided into countless tiny raindrops, reducing the kinetic energy of the raindrops. The linear mesh structure also effectively reduces the impact area of ​​the rainwater. As a result, when the raindrops come into contact with the surface tension of the mesh surface of the splash guard 5, they can be easily bound and prevented from splashing outwards. This solves the drawbacks of traditional rainwater collection, breaks through the limitation of high edges for splash prevention, and achieves effective splash prevention at low edges and more accurate rainwater collection, which greatly improves the accuracy of rainwater collection and makes the measurement results more reliable. The measurement unit can be an external connection device.

[0040] Furthermore, the splash guard 5 includes a narrow metal frame 10, a fine metal mesh 11, and a handle 12. The narrow metal frame 10 is fully covered and fixedly installed with the fine metal mesh 11. Handles 12 are provided on both sides of the narrow metal frame 10. The fine metal mesh 11 has a mesh size of 50-100. The surface of the splash guard 5 is coated with a hydrophobic coating to reduce the adhesion of rainwater on the surface of the fine mesh and accelerate the falling of rainwater.

[0041] In this embodiment, the splash guard 5 has two burr-free structures to prevent the edges from scratching hands. One is that the outer contour edge of the narrow metal frame 10 is integrally connected with a downward-folded flat-pressed flange 13 or a metal edging. The metal edging can be a rolled, arc-shaped, or inwardly bent sheet metal edge, as long as the edge doesn't scratch hands. The other is that the narrow metal frame 10 is integrally formed by injection molding, with the edging embedded in it. Both methods can prevent the edges from scratching hands. Preferably, the flat-pressed flange 13 is approximately 2mm wide, formed using sheet metal technology, with smooth, burr-free edges to avoid scratching hands. The fine metal mesh 11 is made of 80-mesh 304 stainless steel with a wire diameter of 0.12mm and a mesh size of 0.18mm, effectively separating raindrops without obstructing rainwater flow. The surface of the splash guard 5 is coated with a hydrophobic polytetrafluoroethylene (PTFE) coating to reduce rainwater adhesion to the fine mesh surface and accelerate rainwater flow. The splash guard 5 can also be disassembled for cleaning, ensuring the reliability of rainwater collection and use. Of course, compared to the preferred 80 mesh, when the metal mesh 11 is made of 50 mesh, the raindrop separation effect is weaker and some large raindrops are still easy to splash. When the 100 mesh is made of 100 mesh, the mesh of the metal mesh 11 is easy to clog and requires frequent cleaning. The optimal balance is achieved between splash protection effect and maintenance frequency.

[0042] Furthermore, the inner wall of the conical rainwater collection hopper 3 is provided with several guide channels 14. The guide channels 14 extend from top to bottom and are connected to the drain outlet 4. There are 4 guide channels 14, which are evenly distributed on the inner wall of the rainwater collection hopper. They are used to guide the rainwater falling through the splash net 5 to converge towards the drain outlet 4, reduce the residue of rainwater on the inner wall of the conical rainwater collection hopper 3, and guide the rainwater to flow quickly along the guide channels 14.

[0043] Furthermore, the support edge 6 includes a first support edge 15 and a second support edge 16 arranged opposite to each other. The height of the first support edge 15 is higher than that of the second support edge 16. The two sides of the splash net 5 are respectively placed on the first support edge 15 and the second support edge 16, so that the splash net 5 forms an inclined angle of 10-45° to reduce the positive pressure impact of rainwater on the metal mesh 11 and reduce water accumulation.

[0044] In this embodiment, the support edge 6 can be set horizontally, as shown in the reference. Figure 3 As shown, in the first method, the splash guard 5 is horizontally positioned on the support edge 6, resulting in a higher degree of rainwater splashing. In the second method, the support edge 6 uses the first support edge 15 and the second support edge 16 at different heights, as shown in the reference diagram. Figure 4 As shown. The height difference design of the support edge 6 is an optimization of the installation posture of the splash guard 5. When the splash guard 5 is installed horizontally, when rainwater hits the mesh surface of the splash guard 5 vertically, some rainwater will splash horizontally. It is preferable to set a 30° tilt angle so that the rainwater contacts the metal mesh 11 of the splash guard 5 at an oblique impact. The impact force is decomposed into two components: vertical force and force along the mesh surface of the metal mesh 11. The force along the mesh surface of the metal mesh 11 pushes the rainwater to flow quickly to a lower position, reducing horizontal splashing. At the same time, the tilted structure prevents rainwater from accumulating on the surface of the metal mesh 11. The support edge adopts an integral injection molding process with the container body 1, without splicing gaps, to prevent rainwater from seeping into the base 8 from the gaps of the support edge.

[0045] Furthermore, when the rainwater collected by the standard volume tipping container 9 reaches the preset weight, the magnet and the magnetic sensor magnetically engage, triggering the standard volume tipping container 9 to swing downwards to discharge the rainwater. At the same time, the magnetic sensor sends one pulse signal to the measuring unit. The measuring unit receives the number of pulse signals within 5 minutes and processes them as follows:

[0046] 1. The actual water volume is calculated using the formula: Vactual = Vbucket × n. Vactual is the actual water volume, Vbucket is the standard capacity of the standard quantity tipping container 9, and n is the number of times the standard quantity tipping container 9 swings through the pulse signal. n is a positive integer.

[0047] 2. The actual rainfall is calculated using the formula: h=Vactual / S, where h is the actual rainfall and S is the standard water-receiving area of ​​rain inlet 2, and the standard water-receiving area = 5373mm².

[0048] 3. The measuring unit receives pulse signals within 5 minutes and converts them into the actual total volume of rainfall, V_total. The measuring unit has a pre-stored standard simulated rainfall volume V_standard of 25.4 mL / 5 min. Here, based on the density of water = 1 g / cm^3, that is, the mass of 1 cm^3 of water is exactly 1 g, the mass unit of the actual rainfall h is converted into the volume unit of the actual total volume of rainfall, V_total, to obtain the actual total volume of rainfall, V_total.

[0049] 4. The actual water loss rate over 5 minutes was calculated using the formula Ploss = (Vstandard - Vtotal) / Vstandard × 100%, where Ploss is the actual water loss rate and Vstandard = 25.4 mL.

[0050] 5. The splash protection rate of collected rainwater is calculated using the formula η=(P_mesh - P_actual) / P_mesh×100%. P_mesh=9.4% is the target water loss rate of the preset splash protection net 5, and η is the splash protection rate, which is used to quantify the splash protection effect of the splash protection net 5.

[0051] In an optional experimental embodiment, 25.4 mL of water was dripped from a height of 12 meters within 5 minutes. The water collection volume was observed under conditions of no splash net 5 and with splash net 5. To avoid the randomness of a single experiment, the data were the average of multiple experiments. By comparing the following water loss rates, it can be seen that after adding splash net 5, the water loss rate decreased from 33% to 9.4%. At the same time, the splashing phenomenon observed by slow-motion photography was significantly reduced, which experimentally verified the effectiveness of splash net 5.

[0052] The following are the experimental data:

[0053]

[0054] Without a splash guard: Weigh and collect 17 mL of water; water loss: 25.4 mL - 17 mL = 8.4 mL; actual water loss rate Ploss = 8.4 / 25.4 × 100% ≈ 33%;

[0055] After adding the splash guard: Weigh and collect water volume: 23 mL, water loss: 25.4 mL - 23 mL = 2.4 mL, actual water loss rate P_loss = 2.4 / 25.4 × 100% ≈ 9.4%;

[0056] Experimental conclusion: The device with splash guard 5 has significant advantages.

[0057] In summary, this invention provides a high-precision rainwater splash-proof collection and measurement device. By designing a splash-proof net 5, the falling rainwater is broken into countless tiny raindrops, reducing the kinetic energy of the raindrops. The linear mesh structure also reduces the effective impact area, thus easily binding the raindrops to prevent them from splashing outward when they come into contact with the surface tension of the net 5. This significantly improves the accuracy of rainwater collection, making the measurement results more reliable. Furthermore, the height of the splash-proof net 5 from the rainwater collection port is lower than that of traditional designs, resulting in a better overall structure and improved accuracy of rainwater collection.

[0058] The technical principles of the present invention have been described above with reference to specific embodiments, which are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments; all technical solutions falling within the scope of the present invention's concept are within its protection scope. Those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these will all fall within the protection scope of the present invention.

Claims

1. A high-precision rainwater collection and measurement device that prevents splashing, characterized in that, include: The container body has a rain inlet at the top, which is set according to a standard water receiving area. A cone-shaped rain collection hopper is integrally connected to the bottom of the container body, and a drain outlet is provided at the bottom of the cone-shaped rain collection hopper. A splash guard is detachably installed inside the container. The inner wall of the container is provided with a support platform for supporting the splash guard, and the support platform is located above the conical rainwater collection hopper. A collection unit is provided at the lower part of the container body. The collection unit is located below the drain outlet. The collection unit includes a base, a standard quantity tipping container, a magnet, and a magnetic sensor. The bottom of the container body is provided with a base. The base is provided with a swingable standard quantity tipping container. The upper end of the standard quantity tipping container is located directly below the drain outlet. A magnet is provided on the side of the bottom surface of the standard quantity tipping container. A magnetic sensor is provided on the base. The measuring unit is electrically connected to the magnetic sensor and is used to receive the pulse signal from the magnetic sensor and calculate the actual water intake and splash prevention rate under the rated unit. The splash guard includes a narrow metal frame, a fine metal mesh, and a handle. The narrow metal frame is fixedly installed with the fine metal mesh covering the entire area. Handles are provided on both sides of the narrow metal frame. The fine metal mesh has a mesh size of 50-100. The surface of the splash guard is coated with a hydrophobic coating to reduce the adhesion of rainwater to the surface of the fine mesh and accelerate the falling of rainwater. The inner wall of the conical rainwater collection hopper is provided with several guide channels. The guide channels extend from top to bottom and are connected to the drain outlet. They are used to guide rainwater falling through the splash net to converge at the drain outlet, thereby reducing the residue of rainwater on the inner wall of the conical rainwater collection hopper.

2. The rainwater splash-proof high-precision collection and measurement device according to claim 1, characterized in that, The outer contour edge of the narrow metal frame is integrally connected with a flat-pressed folded edge or metal edging to prevent the edge from scratching your hand.

3. The rainwater splash-proof high-precision collection and measurement device according to claim 1, characterized in that, The narrow metal frame is integrally formed by injection molding and has an embedded edge to prevent the edges from scratching your hands.

4. The rainwater splash-proof high-precision collection and measurement device according to claim 1, characterized in that, The support platform includes a first support side and a second support side arranged opposite to each other. The height of the first support side is higher than that of the second support side. The two sides of the splash net are respectively placed on the first support side and the second support side, so that the splash net forms an inclination angle of 10-45° to reduce the positive pressure impact of rainwater on the fine metal mesh and reduce water accumulation.

5. The rainwater splash-proof high-precision collection and measurement device according to claim 1, characterized in that, When the rainwater collected by the standard-capacity tipping container reaches a preset weight, the magnet and the magnetic sensor magnetically engage, triggering the standard-capacity tipping container to swing downwards to discharge the rainwater. Simultaneously, the magnetic sensor sends one pulse signal to the measuring unit and calculates the actual water volume collected. The actual water volume collected is calculated using the formula: Vactual = Vbucket × n, where Vactual is the actual water volume collected, Vbucket is the standard capacity of the standard-capacity tipping container, and n is the number of times the standard-capacity tipping container swings based on the accumulated pulse signals, and n is a positive integer.

6. The rainwater splash-proof high-precision collection and measurement device according to claim 5, characterized in that, The actual rainfall is calculated based on the obtained actual water volume, where the actual rainfall is calculated using the formula: h = Vactual / S, where h is the actual rainfall and S is the standard water-receiving area of ​​the rain inlet.

7. The rainwater splash-proof high-precision collection and measurement device according to claim 6, characterized in that, The measuring unit calculates the total actual rainfall volume V_total by the number of pulse signals received within 5 minutes. The measuring unit has a pre-stored standard simulated rainfall volume V_standard of 25.4 mL / 5 min.

8. The rainwater splash-proof high-precision collection and measurement device according to claim 7, characterized in that, The measuring unit calculates the actual water loss rate within 5 minutes based on the actual total rainfall volume Vtotal and the standard simulated rainfall volume Vstandard. The formula is Ploss = (Vstandard - Vtotal) / Vstandard × 100%, where Ploss is the actual water loss rate and Vstandard = 25.4 mL. Based on the obtained actual water loss rate, the splash protection rate of the collected rainwater is calculated using the formula η = (Pnet - Pactual) / Pnet × 100%. Pnet = 9.4% is the target water loss rate of the preset splash protection net, and η is the splash protection rate, used to quantify the splash protection effect of the splash protection net.

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