Novel rainfall sampler

Abstract

A novel rainfall sampler relates to the field of environment monitoring equipment and is used for solving the problem that a built-in rainwater sampling cavity of the equipment is inconvenient to clean. The novel rainfall sampler comprises a rain gauge shell, a bearing plate, a rainfall filtering assembly, a rainfall detection assembly and a rainwater sampling assembly, a first cavity and a second cavity are vertically distributed in the rain gauge shell, a rain receiving opening is formed in the top wall of the first cavity, and a rain discharging opening is formed in part of the wall surface of the bottom of the second cavity; the bearing plate is arranged in the rain gauge shell, the bearing plate divides a first cavity and a second cavity, a rain leakage hole is formed in the bearing plate, and the rain leakage hole is communicated with the first cavity and the second cavity; the rainfall detection assembly is arranged in the first cavity and is arranged on the bearing plate; the rainwater sampling assembly is arranged in the second cavity and arranged at the bottom of the bearing plate, a sampling cavity is formed in the rainwater sampling assembly, the top of the sampling cavity is connected with the rainwater leakage opening, a gap is formed between the top of the sampling cavity and the bearing plate, and the bottom of the sampling cavity is through.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of environmental monitoring equipment, in particular to a novel precipitation sampler. BACKGROUND

[0002] Precipitation is an important part of the atmospheric environment, and various chemical components and pollutants contained therein can reflect the atmospheric pollution situation and ecological environment quality. Precipitation sampling is the basic work for analyzing and studying precipitation, and its accuracy and scientificity are crucial for subsequent environmental monitoring and research.

[0003] Existing outdoor rainfall samplers are usually exposed, which makes it easier to collect rainwater, but also causes more impurities when placed normally, affecting the sampling quality of rainwater and the monitoring results.

[0004] Therefore, an outdoor rainfall sampler is provided, which is arranged in a rain gauge. The built-in sampling cavity can collect rainwater filtered and detected by rain amount, and contain part of the rainwater, so as to accurately and quickly analyze the composition of the rainwater through a rainwater analyzer arranged on one side of the sampling cavity. However, the bottom wall of the sampling cavity is closed, which on the one hand causes dust and impurities to gradually deposit, making cleaning inconvenient, and on the other hand, the rainwater in the sampling cavity needs to evaporate automatically, and when there is too much rainwater, the difference in rainwater composition at different time periods cannot be detected. CONTENT OF THE INVENTION

[0005] The present application provides a novel precipitation sampler to solve the problem of inconvenient cleaning of the built-in rainwater sampling cavity of the equipment.

[0006] The present application provides a novel precipitation sampler, which comprises a rain gauge shell, a bearing plate, a rain amount filtering assembly, a rain amount detecting assembly and a rainwater sampling assembly. The first cavity and the second cavity are arranged vertically inside the rain gauge shell. The top wall of the first cavity is provided with a rain receiving opening, and part of the wall surface at the bottom of the second cavity is formed with a rain discharging opening. The bearing plate is arranged in the rain gauge shell and separates the first cavity and the second cavity. The bearing plate is provided with a rain leaking hole, and the rain leaking hole communicates the first cavity and the second cavity. The rain amount filtering assembly is arranged at the rain receiving opening of the first cavity. The rain amount detecting assembly is arranged in the first cavity and on the bearing plate. The rainwater sampling assembly is arranged in the second cavity and on the bottom of the bearing plate. The sampling cavity is formed in the rainwater sampling assembly, the top of the sampling cavity receives the rain leaking hole, and a gap is arranged between the top of the sampling cavity and the bearing plate. The bottom of the sampling cavity is through.

[0007] The rain gauge shell, the bearing plate, the rain amount filtering assembly and the rain amount detecting assembly in the application can calculate the rain amount when it rains; the rainwater sampling assembly is arranged in the second cavity to avoid a large amount of dust from entering, meanwhile, the sampling cavity can make the rainwater pass through and be detected, the sampling cavity is through at the upper and lower ends, which can make the rainwater wash the inner wall of the sampling cavity to realize automatic cleaning of the sampling cavity and avoid the influence of the dust deposited on the inner wall of the sampling cavity on the rainwater detection result; meanwhile, the gap between the sampling cavity and the bearing plate can avoid the influence of the accumulated rainwater in the first cavity on the rain amount detection.

[0008] In some embodiments of the application, the rainwater sampling assembly further comprises a contact rainwater analyzer, the contact rainwater analyzer is through one side wall of the sampling cavity, and a probe of the contact rainwater analyzer extends into the sampling cavity. The contact rainwater analyzer can directly contact with the rainwater to realize detection of the composition of the rainwater, which is convenient and fast.

[0009] In some embodiments of the application, the rainwater sampling assembly further comprises a fixed support, a connecting plate and a sampling cylinder, the connecting plate is arranged in multiple, the multiple connecting plates are fixedly connected with the bearing plate and the fixed support, and the contact rainwater analyzer is fixedly arranged on the fixed support; the sampling cylinder is internally formed with the sampling cavity, and the probe of the contact rainwater analyzer is through one side wall of the sampling cylinder and extends into the sampling cylinder.

[0010] The fixed support can be fixedly connected with the sampling cylinder and the contact rainwater analyzer, so that the rainwater detection result of the rainwater analyzer is stable, and meanwhile, the fixed support and the bearing plate can be fixedly connected through the connecting plate to stabilize the position of the fixed support in the second cavity.

[0011] In some embodiments of the application, along the axial direction of the sampling cylinder, the cross-sectional area of the sampling cavity gradually decreases from top to bottom. This mode can make the sampling cylinder store more stable water flow, reduce the number of bubbles in the rainwater and make the rainwater detection more accurate.

[0012] In some embodiments of the application, the sampling cavity is conical. The inner wall of the conical sampling cavity is smooth, which can further reduce the resistance of the rainwater flow and make the cleaning effect of the sampling cavity better and reduce the dead angle.

[0013] In some embodiments of the application, the rainwater sampling assembly further comprises a connecting piece, the connecting piece fixedly connects the connecting plate and the bearing plate. The connecting piece can relatively fix the positions of the connecting plate and the bearing plate.

[0014] In some embodiments of the application, the height of the upper surface of the bearing plate gradually decreases from the direction in which the edge of the bearing plate points to the rain leakage hole. This mode can make the upper surface of the bearing plate form an inclined surface to avoid the bearing plate bearing too much rainwater and help the flow of the rainwater.

[0015] In some embodiments of this application, the rainwater filtration assembly includes at least one filter screen and a funnel. The filter screen and funnel can effectively collect and filter rainwater, which is helpful for rainwater detection.

[0016] In some embodiments of this application, the rainfall detection component is a tipping bucket rain sensor. Tipping bucket rain sensors can achieve good outdoor rainfall detection results. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 This is a schematic diagram of a novel precipitation sampler provided in an embodiment of this application.

[0019] Reference numerals: 1-Rain gauge housing; 11-First cavity; 111-Rain receiving opening; 12-Second cavity; 121-Rain drain outlet; 2-Support plate; 21-Rain leakage hole; 3-Rain gauge filter assembly; 31-Filter screen; 32-Function funnel; 4-Rain gauge detection assembly; 5-Rainwater sampling assembly; 51-Sampling chamber; 52-Contact rainwater analyzer; 53-Fixed bracket; 54-Connecting plate; 55-Sampling cylinder; 56-Connector. Detailed Implementation

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0024] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0025] Precipitation is an important component of the atmospheric environment, and the various chemical components and pollutants it contains can reflect the state of air pollution and the quality of the ecological environment. Precipitation sampling is the foundation for precipitation analysis and research, and the accuracy and scientific rigor of the sampling are crucial for subsequent environmental monitoring and research.

[0026] Existing outdoor rain samplers are usually exposed, which makes it easier to collect rainwater, but also leads to more impurities when they are placed, affecting the sampling quality and monitoring results.

[0027] Therefore, an outdoor rain sampler has been developed, installed inside a rain gauge. Through a built-in sampling chamber, it can collect rainwater that has passed through filtration and rainfall detection, and also hold a portion of the rainwater for accurate and rapid analysis of its composition by a rainwater analyzer located on one side of the sampling chamber. However, the bottom wall of the sampling chamber is sealed, which leads to the gradual accumulation of dust and impurities, making cleaning inconvenient. Furthermore, the rainwater inside the sampling chamber needs to evaporate naturally, making it impossible to detect differences in rainwater composition at different times when there is a large amount of rainwater.

[0028] Therefore, please refer to Figure 1 This application provides a novel precipitation sampler, including a rain gauge housing 1, a support plate 2, a rain gauge filter assembly 3, a rain gauge detection assembly 4, and a rainwater sampling assembly 5.

[0029] Please refer to Figure 1, the first cavity 11 and the second cavity 12 are arranged in the rain gauge shell 1 in an up-down manner, the top wall of the first cavity 11 is provided with a rain receiving opening 111, and part of the wall surface at the bottom of the second cavity 12 is formed with a rain discharging opening 121. The cylindrical shape is a relatively common shape of the rain gauge shell 1, which can be made of stainless steel or plastic. The shell can prevent dust, leaves, insects and other foreign matters from entering, and avoid interference of these foreign matters on the normal work of the internal components.

[0030] Please refer to Figure 1 , the first cavity 11 and the second cavity 12 can belong to a part of the rain gauge, and the two can be arranged in an up-down manner. The rain receiving opening 111 can be a circular opening, a square opening or an opening of other shapes. The opening can be formed by hole forming on the top wall of the rain gauge, or a notch can be formed on the top of the rain gauge shell 1.

[0031] Please refer to Figure 1 , the rain discharging opening 121 can be arranged on the bottom wall of the second cavity 12, or on any side wall of the second cavity 12. The shape can be circular or square, and a protective net can be arranged at the rain discharging opening 121 to prevent insects from climbing in.

[0032] Please refer to Figure 1 , the bearing plate 2 is arranged in the rain gauge shell 1, the bearing plate 2 separates the first cavity 11 and the second cavity 12, the bearing plate 2 is provided with a rain leakage hole 21, and the rain leakage hole 21 communicates the first cavity 11 and the second cavity 12. The bearing plate 2 can be a circular plate, which can be arranged in correspondence with the shape of the inner wall of the rain gauge shell 1, so as to be fixed and sealed with the inner wall of the rain gauge shell 1.

[0033] Please refer to Figure 1 , alternatively, the bearing plate 2 can be fixedly connected with the shell of the rain gauge, and a notch can be arranged therebetween, so that the excess rainwater can flow out directly from the gap between the bearing plate 2 and the rain gauge shell 1. The rain leakage hole 21 can be a circular hole or a square hole, which is used for facilitating rainwater discharge.

[0034] Please refer to Figure 1 , the rain gauge filter assembly 3 is arranged at the rain receiving opening 111 of the first cavity 11. The structure of the filter assembly on the rain gauge is usually made of metal wire, plastic or other materials, and the mesh size is different, generally about several millimeters, such as 1mm. The grid net can effectively intercept pollution and is not easy to block. The shape is usually circular, square or other shapes, which is matched with the shape of the rain receiving opening 111 of the rain gauge shell 1, and is installed below the rain receiving opening 111, which is used for preliminarily filtering larger sundries in the rainwater, such as leaves, branches and insects.

[0035] Please refer to Figure 1The rain amount detection assembly 4 is arranged in the first cavity 11 and on the bearing plate 2. The detection assembly of the rain gauge is a key part for realizing accurate measurement of rainfall, and different types of rain gauge detection assemblies are different in structure and function. Common structures include a tipping bucket rain gauge detection assembly, an optical rain gauge detection assembly, a piezoelectric rain gauge detection assembly, etc.

[0036] Please refer to Figure 1 The rainwater sampling assembly 5 is arranged in the second cavity 12 and at the bottom of the bearing plate 2. The sampling cavity 51 is formed in the rainwater sampling assembly 5, the top of the sampling cavity 51 receives the rain leakage opening, and a gap is arranged between the top of the sampling cavity 51 and the bearing plate 2. The bottom of the sampling cavity 51 is through.

[0037] Please refer to Figure 1 The rainwater sampling assembly 5 is used for receiving rainwater and analyzing and detecting the rainwater through the contact rainwater analyzer 52 arranged inside. The probe of the contact rainwater analyzer 52 can be arranged in the sampling cavity 51. The sampling cavity 51 can be a cylindrical cavity, a prismatic cavity or other special-shaped cavity, and openings are arranged on the upper and lower sides.

[0038] Please refer to Figure 1 The rain gauge shell 1, the bearing plate 2, the rain amount filtering assembly 3 and the rain amount detection assembly 4 in the application can calculate the rain amount when it rains. The rainwater sampling assembly 5 is arranged in the second cavity 12 to avoid a large amount of dust from entering. At the same time, the sampling cavity 51 can make the rainwater pass through and be detected. The sampling cavity 51 is through at the upper and lower ends, so that the rainwater can wash the inner wall of the sampling cavity 51 to realize automatic cleaning of the sampling cavity 51 and avoid the influence of dust deposited on the inner wall of the sampling cavity 51 on the rainwater detection result. At the same time, the gap between the sampling cavity 51 and the bearing plate 2 can avoid the influence of the rainwater accumulated in the first cavity 11 on the detection of the rain amount.

[0039] Please refer to Figure 1 In some examples, the rainwater sampling assembly 5 further includes the contact rainwater analyzer 52, which is through one side wall of the sampling cavity 51, and the probe of the contact rainwater analyzer 52 extends into the sampling cavity 51. The contact rainwater analyzer 52 can directly contact with the rainwater to realize detection of the composition of the rainwater, which is convenient and fast.

[0040] Please refer to Figure 1 In some examples, the contact rainwater analyzer 52 is an instrument specially used for on-site or laboratory analysis of various physical and chemical properties of rainwater. It obtains information such as composition, pH value and pollutant content of rainwater by directly contacting with the rainwater sample and using various detection technologies.

[0041] The contact rainwater analyzer 52 detects the chemical composition of the rainwater by using a chemical sensor, or by using an optical detection technology. The contact rainwater analyzer 52 in the present scheme can be any of the above two.

[0042] Please refer to Figure 1 In some examples, the rainwater sampling assembly 5 further comprises a fixing bracket 53, a connecting plate 54, and a sampling cylinder 55. The connecting plate 54 is provided in a plurality of pieces, and the plurality of connecting plates 54 are fixedly connected to the bearing plate 2 and the fixing bracket 53. The contact rainwater analyzer 52 is fixedly arranged on the fixing bracket 53. The sampling cylinder 55 forms a sampling cavity 51 inside. The probe of the contact rainwater analyzer 52 penetrates through one side wall of the sampling cylinder 55 and extends into the sampling cylinder 55.

[0043] The fixing bracket 53 can be fixedly connected to the sampling cylinder 55 and the contact rainwater analyzer 52, so that the rainwater detection result of the rainwater analyzer is stable. At the same time, the fixing bracket 53 can be fixedly connected to the bearing plate 2 through the connecting plate 54, so that the position of the fixing bracket 53 in the second cavity 12 is stable.

[0044] Please refer to Figure 1 In some examples, the fixing bracket 53 can be a circular metal ring, or a square ring body, or other shapes, which can be provided with a gap between the bearing plate 2.

[0045] Please refer to Figure 1 The connecting plate 54 can be fixedly connected to the fixing bracket 53, and the connection mode can be any of welding, bonding, one-piece forming, or bolt connection. The number of connecting plates 54 can be 3-6, and preferably 3.

[0046] Please refer to Figure 1 The sampling cylinder 55 can be a transparent cylinder, such as a glass material or a transparent plastic material, or a non-transparent material, such as stainless steel or other non-transparent plastic.

[0047] Please refer to Figure 1 In some examples, along the axis direction of the sampling cylinder 55, from top to bottom, the cross-sectional area of the sampling cavity 51 gradually decreases. This way can make the sampling cylinder 55 store more stable water flow, reduce the number of air bubbles in the rainwater, and make the rainwater detection more accurate.

[0048] For example, the sampling cavity 51 is conical. The inner wall of the conical sampling cavity 51 is smooth, which can further reduce the resistance when the rainwater flows and make the cleaning effect of the sampling cavity 51 better, reducing the dead angle.

[0049] Alternatively, the sampling cavity 51 can also be spindle-shaped or other special-shaped, as long as it meets the requirement that the cross-sectional area of the sampling cavity 51 gradually decreases from top to bottom.

[0050] Please refer to Figure 1 In some examples, the rainwater sampling assembly 5 further comprises a connecting piece 56, which is fixedly connected to the connecting plate 54 and the bearing plate 2. The connecting piece 56 can fix the relative position between the connecting plate 54 and the bearing plate 2.

[0051] In some examples, the connecting piece 56 can be a bolt, or other connecting piece 56, such as a rivet, etc.

[0052] Please refer to Figure 1 In some examples, from the edge of the bearing plate 2 to the direction of the rain leakage hole 21, the height of the upper surface of the bearing plate 2 gradually decreases. In this way, the upper surface of the bearing plate 2 can form an inclined surface, which can avoid the bearing plate 2 from bearing too much rainwater, and help the flow of rainwater.

[0053] In some examples, the bearing plate 2 as a whole can be a conical surface, or a pyramid, which can meet the above requirements, or the upper surface of the bearing plate 2 can be a spherical surface, and the rainwater detection assembly arranged on the bearing plate 2 can make the edge of the rainwater detection assembly arc-shaped, which can block rainwater.

[0054] Please refer to Figure 1 In some examples, the rain amount filtering assembly 3 comprises at least one filter screen 31 and a funnel 32. The filter screen 31 and the funnel 32 can have good effects of collecting and filtering rainwater, which can help the rain amount detection.

[0055] In some examples, the filtering assembly can also be a filtering barrel or a filtering box, which are common structures in a rain gauge, and will not be described here.

[0056] Please refer to Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 In some examples, the rain amount detection assembly 4 is a tipping-bucket rain sensor. The tipping-bucket rain sensor can have a good effect of outdoor rainwater detection.

[0057] In the description of the present specification, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0058] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any change or replacement within the technical scope disclosed in the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A novel precipitation sampler, characterized in that, The new precipitation sampler comprises a rain gauge shell, a bearing plate, a rain amount filtering assembly, a rain amount detecting assembly, and a rainwater sampling assembly. The rain gauge shell comprises a first cavity and a second cavity distributed on the inside of the rain gauge shell, a rain receiving opening is arranged on the top wall of the first cavity, and a rain discharging opening is formed on part of the wall surface of the bottom of the second cavity. The bearing plate is arranged in the rain gauge shell, separates the first cavity and the second cavity, and is provided with a rain leakage hole communicating the first cavity and the second cavity. The rain amount filtering assembly is arranged at the rain receiving opening of the first cavity. The rain amount detecting assembly is arranged in the first cavity and on the bearing plate. The rainwater sampling assembly is arranged in the second cavity and on the bottom of the bearing plate, and a sampling cavity is formed in the rainwater sampling assembly.

2. The new precipitation sampler according to claim 1, wherein the rainwater sampling assembly further comprises a contact rainwater analyzer penetrating one side wall of the sampling cavity, and a probe of the contact rainwater analyzer extends into the sampling cavity.

3. The new precipitation sampler according to claim 2, wherein the rainwater sampling assembly further comprises a fixing support, a connecting plate, and a sampling cylinder, the connecting plate is provided in plurality, the connecting plate is fixedly connected with the bearing plate and the fixing support, and the contact rainwater analyzer is fixedly arranged on the fixing support. The sampling cylinder forms the sampling cavity inside, and the probe of the contact rainwater analyzer penetrates one side wall of the sampling cylinder and extends into the sampling cylinder.

4. The new precipitation sampler according to claim 3, wherein the cross-sectional area of the sampling cavity gradually decreases from top to bottom along the axial direction of the sampling cylinder.

5. The new precipitation sampler according to claim 4, wherein the sampling cavity is conical.

6. The new precipitation sampler according to claim 3, wherein the rainwater sampling assembly further comprises a connecting piece fixedly connecting the connecting plate and the bearing plate.

7. The new precipitation sampler according to any one of claims 1-6, wherein the height of the upper surface of the bearing plate gradually decreases from the edge of the bearing plate to the direction of the rain leakage hole.

8. The new precipitation sampler according to claim 1, wherein the rain amount filtering assembly comprises at least one filter screen and a funnel.

9. The new precipitation sampler according to claim 1, wherein the rain amount detecting assembly is a tipping bucket rain sensor. ​ ​ ​ ​ ​ ​ ​ ​

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