Automatic timing rainwater collecting device for isotope detection

Abstract

The invention discloses an automatic timing rainwater collecting device for isotope detection, which comprises a body shell, a rainwater collecting opening is arranged on the body shell, a plurality of sampling bottles are arranged in the body shell, the automatic timing rainwater collecting device further comprises a flow divider for controllably distributing collected rainwater to each sampling bottle, overflow ports are arranged on the sampling bottles, and the overflow ports are communicated with the flow divider. According to the scheme, the plurality of sampling units are arranged, and the controllable automatic conversion among the sampling units is realized through the controllable motor, so that the specific requirements of high-frequency sampling, multi-sample sampling and other rainwater sampling can be well met, and meanwhile, the stability and accuracy of rainwater samples can be ensured through the overflow and anti-evaporation design of the sampling bottles.

Description

Technical Field

[0001] The invention relates to the field of isotope detection equipment, and in particular to an automatic timed rainwater collection device for isotope detection. Background Art

[0002] Multi-sample rainwater collection devices are of great significance in environmental monitoring and scientific research. For example, multi-sample rainwater collection devices can be used to detect hydrogen and oxygen isotopes in rainwater, and the detection of hydrogen and oxygen isotopes in rainwater is crucial for studying the water cycle process, climate change and its impact on the ecosystem. On the one hand, high-frequency and accurate rainwater sampling data can help scientists better understand regional hydrological dynamics, track pollutant migration paths, and assess the impact of climate change on water resources. On the other hand, in the case of short-duration heavy rainfall and tropical cyclone rainfall, the device can provide timely and accurate rainwater data, which is helpful for analyzing the formation and development process of these extreme weather events. Therefore, high-frequency multi-sample rainwater sampling data is crucial for understanding the intensity distribution of short-duration heavy rainfall and its impact on surface runoff and hydrological cycle. In addition, through continuous monitoring of tropical cyclone rainfall, its precipitation characteristics, impact range and long-term impact on local water resources can be evaluated, thereby providing a scientific basis for flood prevention and disaster reduction and water resources management. With the continuous improvement of requirements for environmental protection and resource management, the demand for multi-sample rainwater collection devices will continue to grow. Especially in the context of increasingly serious global climate change and water shortage, high-frequency, multi-sampling unit, and anti-evaporation rainwater collection devices will become an important direction for the development of environmental monitoring technology. Rainwater collection devices with high frequency and multiple samples can not only improve the accuracy and efficiency of existing monitoring systems, but also provide important support for the construction of intelligent and automated environmental monitoring networks in the future, and have broad development prospects and application potential.

[0003] Currently, most existing rainwater collection devices are designed for a single sample, and there are some shortcomings when used to detect hydrogen and oxygen isotopes. Even if there is an idea to repackage the collected rainwater, rainwater collection devices with a general diversion design cannot achieve high-frequency sampling, which limits its use in applications that require continuous monitoring and rapid response. Secondly, the number of sampling units in existing devices is small and cannot meet large-scale or high-density sampling requirements. In addition, few people pay attention to the evaporation of rainwater samples. Existing conventional rainwater collection devices have failed to effectively suppress the evaporation of rainwater during the collection process, resulting in the accuracy and representativeness of the samples being affected. For this reason, it is necessary to design and improve existing conventional rainwater collection devices. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a multi-sample automatic timed rainwater collection device that can meet the isotope detection sampling. The device is required to solve the above problems, not only to realize timed and high-frequency sampling, but also to have multiple sampling units, and the sampling units have the function of suppressing the evaporation of rainwater samples to ensure the stability and accuracy of isotope detection.

[0005] To solve the above technical problems, the technical solution of the present invention is: An automatic timed rainwater collection device for isotope detection comprises a main body shell, a rainwater collection opening is arranged on the main body shell, a plurality of sampling bottles are arranged inside the main body shell, and a diverter which controllably distributes the collected rainwater to each of the sampling bottles, wherein the sampling bottles are provided with an overflow port.

[0006] Preferably, the diverter achieves controllable distribution of the collected rainwater by controlling the time for each sampling bottle to receive rainwater.

[0007] Preferably, the diverter includes a rainwater collection component and a rainwater distribution component, the rainwater collection component includes a large funnel with the rainwater collection opening opened upward and a guide trough connected to the opening below the large funnel, the rainwater distribution component includes a leaking plate provided with a plurality of drain outlets, the number of the drain outlets is equal to the number of the sampling bottles, the leaking plate constitutes the bottom plate of the guide trough, a water baffle is superimposed on the leaking plate, the water baffle is only provided with one water diversion outlet connected to the drain outlet, the water baffle is controllably movable above the leaking plate and only retains one drain outlet connected to the water diversion outlet and covers all other drain outlets.

[0008] Preferably, the water baffle plate and the water leakage plate are long strip structures, and the two long sides of the water leakage plate extend upward to form side panels. The two side panels and the water leakage plate surround the guide groove, and the water baffle plate is placed inside the guide groove and can slide controllably along the guide groove. The guide groove is inclined, and the lower opening of the large funnel is aligned with the inside of the guide groove at the higher end.

[0009] Preferably, a screw rod is installed on the main body shell along the direction of the guide groove, a slider which can slide controllably on the screw rod is sleeved on the screw rod, and the slider is fixedly connected to the water baffle.

[0010] Preferably, a small funnel that is larger at the top and smaller at the bottom is installed below each of the water outlets, and the lower end of the small funnel is connected to the sampling bottle.

[0011] Preferably, the sampling bottle comprises a bottle body and a bottle cap which are separable from each other, the bottle cap is provided with a water inlet, and the lower end of the small funnel is connected to the water inlet.

[0012] Preferably, the overflow port is arranged on the bottle cap, and the upper end of the overflow port is also connected to a spiral glass tube for preventing evaporation of the sampling bottle.

[0013] Preferably, a screen is provided in the large funnel to prevent foreign matter from entering the guide groove.

[0014] After adopting the above scheme, the present invention has the following advantages: 1. High-frequency sampling: Existing rainwater collection devices are usually unable to achieve high-frequency sampling, which limits the detailed analysis of rainfall events in a short period of time. The present invention is a device that can automatically perform high-frequency sampling within a predetermined time interval, ensuring continuous monitoring of short-duration heavy rainfall and tropical cyclone rainfall; 2. Multiple sampling units: The existing devices have a small number of sampling units and cannot meet the high-density sampling requirements. The present invention improves the sampling coverage and data richness by configuring multiple independent sampling units, which is suitable for long-term environmental monitoring and scientific research; 3. Inhibit rainwater evaporation: Existing devices have failed to effectively inhibit the evaporation of rainwater samples, affecting the accuracy and representativeness of the samples. The present invention adopts a spiral glass tube design, which significantly reduces the evaporation loss of rainwater during the collection and storage process, ensures the quality of the sample, and the spiral glass tube can also allow excess rainwater to overflow; 4. Suitable for outdoor applications: The device of the present invention is equipped with a switch-controllable power supply, i.e., a mobile power supply. When it is inconvenient to connect to a power supply in the field, the device can ensure continuous operation for 48 hours and adapt to various outdoor environments.

[0015] In summary, the device disclosed in the present invention has the following product features: 1. Accurate monitoring: Through high-frequency and long-term sampling capabilities, the device can provide accurate rainfall data and is suitable for rainfall isotope monitoring and analysis of various extreme weather events; 2. Rich data: The multi-sampling unit design enables the device to collect more samples and obtain more comprehensive rainfall information, providing reliable data support for hydrological research and environmental monitoring; 3. Sample quality: By installing a spiral glass jar on the sampling bottle, evaporation can be effectively suppressed, ensuring the stability and accuracy of rainwater samples during collection and storage, and improving the credibility of data; 4. Field adaptability: The mobile power supply carried by the device can work continuously for 48 hours in a field environment without a fixed power supply, ensuring normal operation under various field conditions; 5. Wide application: The device is suitable for many fields such as environmental monitoring, water resources management, scientific research, etc., and is especially important in responding to climate change and extreme weather events. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the front internal structure of the present invention; Figure 4 It is a schematic diagram of the internal structure of the side surface of the present invention; Figure 5 It is a schematic diagram of the structure of the power mechanism for driving the water baffle; Figure 6 It is a schematic diagram of the sampling bottle structure; Figure 7 It is a top view of the water retaining plate; Figure 8 It is a top view of the water distribution plate; Fig. 9 It is a schematic diagram of the screen structure. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1-9As shown, the present invention provides a multi-sample automatic timing rainwater collection device suitable for isotope detection and capable of high-frequency sampling. Its structural design ensures the high-frequency and accurate collection and distribution of rainwater samples, while ensuring the accuracy of rainwater for isotope detection. The device includes an integrated main body shell 1 for supporting and packaging various spare parts. The main body shell 1 is generally made of a sturdy and durable material, such as stainless steel. A telescopic bracket 7 for supporting the main body can be provided below the main body shell 1. The telescopic bracket 7 makes the height of the rainwater collection device adjustable to adapt to different sampling environments. Further, a roller can be installed at the lower end of the telescopic bracket 7, and the rainwater collection device can be easily moved by the roller. A rainwater collection opening for collecting rainwater is provided on the main body shell 1. The difference from the existing conventional rainwater collection device is that a plurality of sampling bottles 6 are provided inside the main body shell 1 of the present invention. Each sampling bottle 6 plays the role of an independent storage unit, providing different independent rainwater samples for subsequent isotope analysis. In this embodiment, 10 sampling bottles 6 are provided. Samples are collected at a frequency of once an hour to obtain 10 hours of rainfall isotope data at one time. The number of sampling bottles 6 can be increased or decreased, and the number of sampling bottles 6 can be adjusted according to the size of the main body shell 1 or the actual sampling needs. At the same time, the device also includes a diverter that controllably distributes the collected rainwater to each sampling bottle 6. When it rains, the rain collection opening collects a large amount of rainwater and controllably distributes the rainwater through the diverter in real time, ensuring the sampling frequency and avoiding the influence of the secondary distribution of rainwater in the later period on the accuracy of the detection result. In order to avoid the influence of excessive water in the sampling bottle 6 on the accuracy of sampling, an overflow port 60 is designed on the sampling bottle 6. For different sampling bottles 6, rainwater samples within a specified time can be collected. When the rainfall is too large, the excess rainwater flowing into the sampling bottle 6 within the specified time can flow out from the overflow port 60 and will not directly enter the sampling bottle 6 specified in the next time period.

[0019] For multiple sampling bottles 6, the diverter in the rainwater collection device can realize controllable distribution of the collected rainwater by controlling the time when each sampling bottle 6 receives rainwater. Specifically, the diverter includes a rainwater collection component and a rainwater distribution component, and the rainwater collection component includes a large funnel 15 with the above-mentioned rainwater collection opening opened upward and a guide groove 13 connected to the opening below the large funnel 15, wherein a screen 2 can be provided in the large funnel 15 to prevent foreign matter from entering the guide groove 13, and the screen 2 can effectively block the interference of impurities such as leaves and large particles of sand and gravel on rainwater collection, thereby ensuring the cleanliness of rainwater, preventing large particles of impurities from entering the guide groove 13 below the large funnel 15, and ensuring that rainwater flows smoothly into each sampling bottle 6. The rainwater distribution component includes a leaking plate 11 with multiple drain outlets 110, the number of drain outlets 110 is equal to the number of sampling bottles 6, the leaking plate 11 constitutes the bottom plate of the guide groove 13, and a water baffle 12 is superimposed on the leaking plate 11. The water baffle 12 is only provided with one water diversion outlet 120 connected to the drain outlet 110. The water baffle 12 is controllably movable above the leaking plate 11 and only retains one drain outlet 110 that is connected to the water diversion outlet 120 and covers all other drain outlets 110. Due to the controllable movement of the water baffle 12, the water diversion port 120 of the water baffle 12 can be connected with different drain ports 110 in sequence in each specified time period, and rainwater is collected inside the large funnel 15 through the rainwater collection opening and flows into the guide groove 13 below. Since the water diversion port 120 is only connected with one drain port 110, the rainwater in the guide groove 13 will be concentrated through the specified drain port 110 and flow into the specified sampling bottle 6 in the specified time period. The controllable movement of the water baffle 12 can meet the specific needs of high-frequency sampling of the rainwater collection device for isotope detection.

[0020] The design of the water baffle and the leaking plate can be carried out according to the different sizes of the device structure and the number of sampling bottles. For example, the leaking plate and the water baffle can be both annular plates, and the inner and outer ring edges of the leaking plate extend upward to form side plates. The leaking plate and the side plates form an annular guide groove, and the water baffle is placed in the guide groove and is coaxially arranged with the leaking plate and can rotate in the guide groove, so that the water diversion port is connected with each water outlet in turn. In this embodiment, the water baffle 12 and the leaking plate 11 are both long strip structures, and the two long sides of the leaking plate 11 extend upward to form side plates 33. The two side plates 33 and the leaking plate 11 form a guide groove 13. The water baffle 12 is placed inside the guide groove 13 and can slide controllably along the guide groove 13. An opening 16 is provided on the main body shell 1 to allow the leaking plate 11 to pass through. The two ends of the leaking plate 11 can pass through the opening 16 to be exposed outside the main body shell 1. At the same time, the guide groove 13 of this embodiment is inclined, and the large leaking plate 11 can be placed in the guide groove 13. The lower opening of the bucket 15 is aligned with the interior of the guide groove 13 at the higher end, so that the rainwater collected by the rainwater collection assembly will flow down along the guide groove 13 and enter the corresponding drain port 110 at the water diversion port 120 and enter the sampling bottle 6. A part of the excess rainwater can be discharged from the rainwater collection device through the leaking plate 11 extending out of the main body shell 1, and the other part continues to enter the sampling bottle 6, and the excess rainwater in the sampling bottle 6 is allowed to flow out from the overflow port 60, thereby realizing the precise collection of rainwater in multiple time periods.

[0021] The controllable movement of the water leakage plate 11 can be achieved by a motor. Specifically, in this embodiment, a screw rod 14 is installed on the main body shell 1 along the direction of the guide groove 13, and a slider 3 that can slide controllably on the screw rod 14 is sleeved on the screw rod 14. The slider 3 and the water retaining plate 12 are fixedly connected by a connecting rod 123. The screw rod 14 can be non-rotatable. If the screw rod 14 is fixed, a gear that matches the screw rod 14 can be arranged inside the slider 3. The gear is installed on the output shaft of the controllable motor, and the gear is meshed with the screw rod 14. When the controllable motor drives the gear to rotate on the screw rod 14, the slider 3 can only slide along the direction of the screw rod 14 based on the limiting effect of the designated slideway, that is, the slider 3 slides on the screw rod 14 as a whole under the drive of the controllable motor and the driving gear, thereby driving the water retaining plate 12 to slide back and forth along the direction of the screw rod 14. The screw rod 14 can also be rotatably mounted on the main body housing 1 through a bearing, and the controllable motor controls the screw rod 14 to rotate. The output shaft of the controllable motor drives the screw rod 14 to rotate along the axis of the screw rod 14. A rack matching the screw rod 14 is provided inside the slider 3, and the rack is meshed with the screw rod 14. When the controllable motor drives the screw rod 14 to rotate, the slider 3 can only slide along the direction of the screw rod 14 based on the limiting effect of the designated slideway, that is, the slider 3 is on the rotating screw rod 14, and the entirety slides on the screw rod 14 based on the driving of its internal rack, thereby driving the water retaining plate 12 to slide back and forth along the screw rod 14. The screw rod 14 converts the rotation of the motor into a linear movement, which is a conventional design known to those skilled in the art, and will not be described in detail here. The screw rod 14 finally realizes that the water diversion port 120 is docked with different drain ports 110 one by one, allowing the rainwater in the diversion groove 13 to flow into the designated sampling bottle 6. The drive of the controllable motor can be realized by the switch controllable power supply 5 and the time controller 4. The time controller 4 is set according to the sampling frequency to control the switch controllable power supply 5. If sampling is required once an hour in this embodiment, the time controller 4 can start the switch controllable power supply 5 once every hour. The time of starting the switch controllable power supply 5 each time is related to the moving speed of the slider 3 and the spacing between adjacent drains 110. After starting the switch controllable power supply 5, the switch controllable power supply 5 outputs an action to allow the slider 3 to drive the water baffle 12 to slide to the water diversion port 120 and dock with the next drain 110. At this time, the time controller 4 turns off the switch controllable power supply 5, completes a step, and waits for the next cycle to turn on the switch controllable power supply 5 again to drive the water baffle 12 to slide again. If the rainfall in one hour is greater than the capacity of the sampling bottle 6, the excess rainwater flows out from the overflow port. Of course, the switch controllable power supply 5 can also be replaced by a remote control switch, and the same operation is performed on the water baffle 12 through remote control to achieve multi-sample collection of rainwater.

[0022] To ensure convenient removal of samples, each sampling bottle 6 includes a bottle body 62 and a bottle cap 61 that can be separated from each other. A small funnel 10 with a large top and a small bottom is installed below each water outlet 110. The lower end of the small funnel 10 is connected to the sampling bottle 6 through a conduit 9. Specifically, a water inlet is provided on the bottle cap 61, and the lower end of the small funnel 10 is connected to the water inlet. When sampling in rainy weather, rainwater flowing into the water outlet 110 is collected in the small funnel 10 and then flows into the sampling bottle 6 through the water inlet. After sampling, the preset sampling window 17 of the main body shell 1 can be directly opened, and the bottle body 62 and the bottle cap 61 can be separated from each other by twisting the bottle cap 61 or the bottle body 62, thereby completing the collection purpose of the sampling bottle 6. In addition, the overflow port 60 of the above-mentioned sampling bottle 6 can be arranged on the bottle cap 61, and the upper end of the overflow port 60 is also connected to a spiral glass tube 8 for preventing the sampling bottle 6 from evaporating. Due to the detachable design of the bottle cap 61 and the bottle body 62, there is no need to perform any operation on the spiral glass tube 8 during sampling. When rainwater overflows from the sampling bottle 6, the rainwater can enter the spiral glass tube 8. The rainwater in the spiral glass tube 8 is equivalent to liquid sealing the water in the sampling bottle 6, avoiding the introduction of impurities and the evaporation loss of rainwater samples during the storage process to affect the detection. When the bottle body 62 and the bottle cap 61 are removed, due to the effect of atmospheric pressure, the rainwater in the spiral glass tube 8 will flow back and be emptied, ensuring the smooth implementation of the next sampling.

[0023] The above description is only a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any changes or modifications made according to the claims and description of the present invention should fall within the scope of the patent of the present invention.

Claims

1. An automatic timed rainwater collection device for isotope detection, comprising a main body shell, wherein the main body shell is provided with a rainwater collection opening, characterized in that: A plurality of sampling bottles are arranged inside the main body shell, and a diverter is also included for controllably distributing the collected rainwater to each of the sampling bottles. The sampling bottles are provided with overflow ports.

2. The automatic timed rainwater collection device for isotope detection according to claim 1, characterized in that: The diverter realizes controllable distribution of the collected rainwater by controlling the time when each sampling bottle receives the rainwater.

3. The automatic timed rainwater collection device for isotope detection according to claim 2, characterized in that: The diverter includes a rainwater collection component and a rainwater distribution component. The rainwater collection component includes a large funnel with the rainwater collection opening opened upward and a guide groove connected to the opening below the large funnel. The rainwater distribution component includes a leaking plate with multiple water outlets, the number of the water outlets is equal to the number of the sampling bottles, the leaking plate constitutes the bottom plate of the guide groove, a water baffle is superimposed on the leaking plate, only one water diversion port connected to the water outlet is provided on the water baffle, the water baffle is controllably movable above the leaking plate and only one water outlet is retained to be connected to the water diversion port and all other water outlets are covered.

4. The automatic timed rainwater collection device for isotope detection according to claim 3, characterized in that: The water baffle plate and the water leakage plate are long strip structures, and the two long sides of the water leakage plate extend upward to form side plates. The two side plates and the water leakage plate surround the guide groove. The water baffle plate is placed inside the guide groove and can slide controllably along the guide groove. The guide groove is inclined, and the lower opening of the large funnel is aligned with the inside of the guide groove at the higher end.

5. The automatic timed rainwater collection device for isotope detection according to claim 4, characterized in that: A screw rod is installed on the main body shell along the direction of the guide groove, and a slider which can slide controllably on the screw rod is sleeved on the screw rod, and the slider is fixedly connected to the water baffle.

6. The automatic timed rainwater collection device for isotope detection according to claim 3, characterized in that: A small funnel with a larger top and a smaller bottom is installed below each water outlet, and the lower end of the small funnel is connected to the sampling bottle.

7. The automatic timed rainwater collection device for isotope detection according to claim 6, characterized in that: The sampling bottle comprises a bottle body and a bottle cap which can be separated from each other. The bottle cap is provided with a water inlet, and the lower end of the small funnel is connected to the water inlet.

8. The automatic timed rainwater collection device for isotope detection according to claim 7, characterized in that: The overflow port is arranged on the bottle cap, and the upper end of the overflow port is also connected with a spiral glass tube for preventing the sampling bottle from evaporating.

9. The automatic timed rainwater collection device for isotope detection according to claim 3, characterized in that: A screen is arranged inside the large funnel to prevent foreign matter from entering the guide groove.

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