Rainwater sampling device based on environmental detection

Abstract

The application belongs to the technical field of rainwater sampling and provides a rainwater sampling device based on environmental detection, which comprises a collecting box, a collecting cavity is formed in the collecting box, a refilling mechanism is installed in the collecting cavity, and a feeding mechanism is also installed in the collecting box. The application can fill 36 collecting bottles in the discharging assembly, and then the discharging assembly pushes a row of nine collecting bottles into the feeding mechanism at one time, and then the feeding mechanism pushes the collecting bottles into the refilling mechanism one by one, and then the collecting and injection mechanism is used to collect and inject rainwater into the collecting bottles, so that the rainwater collection work is completed, one sample can be collected at one time, and the use is simpler. After the collecting bottles are installed on the discharging assembly, the discharging assembly can be directly installed in the discharging cavity, after the collection is completed, the collecting bottles will all fall into the discharging channel, and then the collecting bottles can be uniformly recycled, so that the installation and recycling operations of the collecting bottles are simpler.

Description

Technical Field

[0001] This invention belongs to the field of rainwater sampling technology, and particularly relates to a rainwater sampling device based on environmental monitoring. Background Technology

[0002] When conducting environmental monitoring, changes in the environment are usually judged by testing the media objects. The media objects of environmental monitoring can be roughly divided into water quality, air, soil, solid waste, and organisms. Among them, water quality includes rainwater and river water. When testing rainwater, it is necessary to collect and test it regularly before it hits the ground to determine how the rainwater changes over time and provide a certain basis for environmental monitoring.

[0003] The applicant found some prior art, such as Chinese patent CN222013676U, which describes an automatic rainwater runoff sampling device that can take multiple samples of rainwater by connecting multiple sampling bottles to the bottom of the sampling component.

[0004] However, the aforementioned sampling bottles are directly connected to the quantitative diversion valve via pipes. The collected rainwater is sequentially injected into each sampling bottle through the quantitative diversion valve. When assembling or disassembling the sampling bottles, they need to be installed or removed one by one. If the operation is not done properly, the rainwater inside the sampling bottle may spill out, making the operation quite cumbersome. Furthermore, since each sampling bottle needs to be connected to the quantitative diversion valve, there are many pipes and valves required, which means that the above device cannot accommodate many sampling bottles. The sample size collected at one time is relatively small. When a large number of samples need to be collected at once, multiple sampling devices need to be set up, or the sampling bottles in the above device need to be replaced, making it quite troublesome to use. Summary of the Invention

[0005] The purpose of this invention is to provide a rainwater sampling device based on environmental monitoring, which aims to solve the technical problems of the cumbersome disassembly and assembly of sampling bottles and the cumbersome use of sampling devices in the prior art.

[0006] This invention is implemented as follows: a rainwater sampling device based on environmental monitoring includes a collection box with a collection cavity inside. A material changing mechanism is installed inside the collection cavity. A feeding mechanism is also installed inside the collection box, comprising a dispensing component and a feeding mechanism. The collection box has a dispensing cavity and a feeding cavity, with the feeding cavity located above the collection cavity and below the dispensing cavity. The dispensing component is installed inside the dispensing cavity and has multiple rows of collection bottles arranged on it, with multiple bottles in each row. Multiple first drop holes communicating with the feeding cavity are opened at the bottom of the dispensing cavity. The positions of the first drop holes correspond to the positions of each row of collection bottles on the dispensing component. The feeding mechanism is installed inside the feeding cavity, with its input end located below the first drop holes. A second drop hole communicating with the collection cavity is opened at the bottom of the feeding cavity. The feeding mechanism is used to transport the collection bottles above the second drop holes and allow them to fall through the second drop holes onto the material changing mechanism. The collection box is also equipped with a collection and injection mechanism. The input end of the collection and injection mechanism extends to the top of the collection box and is used to collect rainwater. The output end of the collection and injection mechanism is located above the material changing mechanism and is used to inject the collected rainwater into the collection bottle. The collection box is also equipped with a discharge channel located below the collection chamber. The bottom of the collection chamber is equipped with a third discharge hole that communicates with the discharge channel. After injection, the collection bottle on the material changing mechanism can fall into the discharge channel from the third discharge hole, thereby completing the discharge.

[0007] Further technical solution: The feeding assembly includes a placement frame, which is installed in the feeding chamber. The placement frame has multiple placement rings arranged in a rectangular array inside, and the collection bottle is inserted into the placement rings. To facilitate material loading, a fourth telescopic rod is fixedly installed inside the collection box, and a second strong magnet is fixedly installed at the movable end of the fourth telescopic rod. A first strong magnet that matches the second strong magnet is fixedly installed on the side of the placement frame near the fourth telescopic rod. To ensure that the collection bottle can fall smoothly into the first discharge hole and to facilitate the installation of the collection bottle, a sliding base plate is slidably installed at the bottom of the placement frame, and a limiting groove adapted to the sliding base plate is opened at the bottom of the discharge cavity.

[0008] Further technical solution: The feeding mechanism includes two symmetrically arranged feeding components, both of which are installed in the feeding cavity. Each feeding component includes two first transmission rollers rotatably installed in the feeding cavity. A first conveyor belt is connected between the two first transmission rollers. Several first limiting semi-rings are equidistantly distributed on the side of the first conveyor belt. The axis of the first limiting semi-rings coincides with the axis of the first discharge hole. A first servo motor is fixedly installed in the feeding cavity. The output shaft of the first servo motor is fixedly connected to one end of a first transmission roller.

[0009] Further technical solution: The material changing mechanism includes a second servo motor fixedly installed in the collection chamber. The output shaft of the second servo motor is fixedly connected to a station turntable. The station turntable has multiple evenly distributed station holes. Initially, the axis of one station hole coincides with the axis of the second discharge hole, so that the collection bottle falling from the second discharge hole can be directly inserted into the station hole. To facilitate material unloading, the workstation hole penetrates the workstation turntable, and a limiting base plate is fixedly installed at the bottom of the collection cavity. The limiting base plate has a second unloading hole that communicates with the third unloading hole.

[0010] Further technical solution: The collection and injection mechanism includes a third telescopic rod, an injection chamber is provided at the top of the collection chamber, the third telescopic rod is fixedly installed at the top of the injection chamber, a fixed plate is fixedly installed at the movable end of the third telescopic rod, a fixed connector is fixedly installed on the fixed plate, one end of the fixed connector is connected to an injection needle, and one end of the injection needle passes through the fixed plate; The top of the collection box is provided with a rain-collecting funnel, the bottom of the rain-collecting funnel is provided with a collection hole, and the top of the fixed connector is connected to a second telescopic hose, one end of the second telescopic hose being connected to the collection hole. To prevent excessive rainwater from flowing into the collection chamber and damaging the device's circuitry during continuous rainwater collection, a second mounting slot is provided on the top of the collection box. A second telescopic rod is fixedly installed in the second mounting slot, and a sealing plate is fixedly connected to the movable end of the second telescopic rod. The sealing plate can seal the rainwater funnel.

[0011] Further technical solution: The collection box is also equipped with a drainage mechanism, which includes a first mounting groove on the side of the injection chamber, a first telescopic rod fixedly installed in the first mounting groove, a water receiving groove fixedly installed at the movable end of the first telescopic rod, the top of the water receiving groove being lower than the bottom of the injection needle, so that the water receiving groove can move to below the injection needle, a first telescopic hose connected to the side of the water receiving groove, a return pipe connected to one end of the first telescopic hose, and a water storage tank provided on the collection box, with one end of the return pipe connected to the water storage tank; The moment the injection needle is pulled out of the collection bottle, rainwater will flow down the second telescopic hose. To solve this problem, a solenoid valve is installed on the fixed connector.

[0012] A further technical solution: The collection and injection mechanism also includes two guide rods slidably mounted on the fixed plate. The bottom ends of the two guide rods are fixedly connected to the same pressure ring. The bottom of the pressure ring is lower than the bottom of the injection needle. A compression spring is connected between the pressure ring and the fixed plate.

[0013] Further technical solution: The discharge channel has a U-shaped structure, one end of the discharge channel passes through the collection box, and the width of the discharge channel is adapted to the diameter of the collection bottle; The inside of the collection box is also equipped with a discharge mechanism. The discharge mechanism includes a third mounting slot opened inside the collection box. The third mounting slot is connected to the discharge channel and is distributed along the discharge channel. Multiple second transmission rollers are rotatably installed inside the third mounting slot. The multiple second transmission rollers are distributed along the discharge channel. A second conveyor belt is connected to the multiple second transmission rollers. Several second limiting semi-rings are equidistantly distributed on the side of the second conveyor belt. One end of the second limiting semi-rings extends into the discharge channel. A third servo motor is fixedly installed at the bottom of the third mounting slot. The output shaft of the third servo motor is fixedly connected to one end of a second transmission roller. To address the interference of the second conveyor belt with the movement of the collection bottle at the corner of the third mounting slot, multiple limiting rollers are rotatably installed on the upper and lower sides of the third mounting slot. These limiting rollers are connected to the second conveyor belt and are installed at the two corners of the third mounting slot, thereby keeping the second conveyor belt inside the third mounting slot and preventing it from protruding into the discharge channel.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention can fill 36 collection bottles into the feeding assembly, and then the feeding assembly pushes a row of nine collection bottles into the feeding mechanism at once. The feeding mechanism then pushes the collection bottles one by one to the material changing mechanism. Then, the collection and injection mechanism collects rainwater and injects it into the collection bottles to complete the rainwater collection work. It can collect multiple samples at once, making it simpler to use. After the collection bottles are installed on the feeding assembly, the feeding assembly can be directly installed into the feeding chamber. After collection is completed, all the collection bottles will fall into the discharge channel, and then the collection bottles can be collected uniformly, making the installation and collection operation of the collection bottles simpler. 2. In this invention, by setting up a drainage mechanism, when the collection bottle is about to be filled, the solenoid valve is closed, and then the injection needle is pulled out. The rainwater in the injection needle will flow into the collection bottle, filling the collection bottle. The rainwater in the second telescopic hose and the collection hole will temporarily remain in the second telescopic hose. When the injection needle moves above the water receiving tank, the first telescopic rod drives the water receiving tank to move below the injection needle, and then the solenoid valve is opened. The rainwater in the collection hole and the second telescopic hose will flow into the water receiving tank, and then flow into the water storage tank through the first telescopic hose and the return pipe to ensure the dryness of the collection chamber and prevent rainwater from damaging the circuit. 3. In this invention, by setting a guide rod, a pressure ring, and a compression spring, when injecting rainwater, the third telescopic rod drives the injection needle and the pressure ring to descend. The pressure ring will first contact the collection bottle. After the pressure ring is blocked, the fixing plate continues to drive the injection needle to descend, inserting the injection needle into the collection bottle. After the injection is completed, the third telescopic rod drives the injection needle to rise. Under the elasticity of the compression spring, the pressure ring presses the collection bottle in place, preventing the collection bottle from rising with the injection needle. After the injection needle is completely pulled out of the collection bottle, the third telescopic rod can drive the pressure ring to rise, thus solving the problem of the injection needle causing the collection bottle to rise together under friction. 4. In this invention, by setting up a discharge mechanism, the discharge mechanism can sequentially carry the collection bottles out of the discharge channel. The staff only needs to arrange the collection bottles that are discharged in sequence in the placement box, send the collection bottles to the laboratory, and perform the tests. There is no need to number the collection bottles in advance or install them in sequence, making the replenishment simpler. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall partial rear view cross-sectional structure of the present invention.

[0017] Figure 3 This is a schematic diagram of the overall partial top view cross-sectional structure of the present invention.

[0018] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the data acquisition box in this invention.

[0019] Figure 5 This is a schematic diagram of the feeding assembly in this invention.

[0020] Figure 6 This is a structural schematic diagram of the overall side view section of the present invention.

[0021] Figure 7 In this invention Figure 6 Enlarged diagram of point A in the middle.

[0022] Figure 8 In this invention Figure 7Enlarged diagram of point C in the middle.

[0023] Figure 9 This is a structural schematic diagram of the second overall side view section of the present invention.

[0024] Figure 10 In this invention Figure 9 Enlarged diagram of point B in the middle.

[0025] Figure 11 This is a schematic diagram of the overall top cross-sectional structure of the present invention.

[0026] Figure 12 In this invention Figure 11 Enlarged diagram of point D in the middle.

[0027] In the attached diagram: 1. Collection box; 2. Drainage mechanism; 21. Water storage tank; 22. Return pipe; 23. First telescopic rod; 24. First mounting slot; 25. First telescopic hose; 26. Water receiving trough; 3. Collection and injection mechanism; 31. Second telescopic rod; 32. Second mounting slot; 33. Sealing plate; 34. Collection hole; 35. Second telescopic hose; 36. Third telescopic rod; 37. Fixing plate; 38. Solenoid valve; 39. Fixing connector; 310. Injection needle; 311. Guide rod; 312. Compression spring; 313. Pressure ring; 314. Rain funnel; 315. Drainage hole; 4. Discharge assembly; 41. Fourth telescopic rod; 42. Placement ring; 43. Placement frame; 44. First strong magnet; 45. Second strong magnet; 46. Sliding... 47. Movable base plate; 5. Limiting bottom groove; 6. First discharge hole; 7. Feeding mechanism; 8. First transmission roller; 9. First conveyor belt; 10. First limiting half ring; 11. Buffer pad; 2. First servo motor; 3. First discharge hole; 42. Second discharge hole; 5. Material changing mechanism; 63. Station turntable; 7. Limiting base plate; 84. Station hole; 95. Second servo motor; 10. Second discharge hole; 11. Third mounting groove; 12. Second transmission roller; 13. Second conveyor belt; 14. Second limiting half ring; 15. Third servo motor; 16. Limiting roller; 17. Collection chamber; 18. Collection bottle; 19. Feeding chamber; 10. Injection chamber; 11. Third discharge hole; 12. Discharge channel; 13. Discharge chamber. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] like Figures 1-12As shown, this invention provides a rainwater sampling device based on environmental monitoring, comprising a sampling box 1, a sampling cavity 10 inside the sampling box 1, a material changing mechanism 8 installed inside the sampling cavity 10, and a feeding mechanism inside the sampling box 1. The feeding mechanism includes a discharging assembly 4 and a feeding mechanism 6. The sampling box 1 has a discharging cavity 16 and a feeding cavity 12 inside, with the feeding cavity 12 located above the sampling cavity 10 and below the discharging cavity 16. The discharging assembly 4 is installed inside the discharging cavity 16, and four rows of sampling bottles 1 are arranged on the discharging assembly 4. 1. Each row has nine bottles. The bottom of the discharge chamber 16 is provided with nine first discharge holes 5 that communicate with the feeding chamber 12. The position of the first discharge holes 5 is adapted to the position of each row of collection bottles 11 on the discharge assembly 4. The feeding mechanism 6 is installed in the feeding chamber 12. The input end of the feeding mechanism 6 is located below the first discharge holes 5. The bottom of the feeding chamber 12 is provided with a second discharge hole 7 that communicates with the collection chamber 10. The feeding mechanism 6 is used to transport the collection bottle 11 to the top of the second discharge hole 7 and make the collection bottle 11 fall through the second discharge hole 7 onto the material changing mechanism 8. The inside of the collection box 1 is also equipped with a collection and injection mechanism 3. The input end of the collection and injection mechanism 3 extends to the top of the collection box 1 and is used to collect rainwater. The output end of the collection and injection mechanism 3 is located above the material changing mechanism 8 and is used to inject the collected rainwater into the collection bottle 11. The inside of the collection box 1 is also provided with a discharge channel 15, which is located below the collection chamber 10. The bottom of the collection chamber 10 is provided with a third discharge hole 14 that communicates with the discharge channel 15. After the injection is completed, the collection bottle 11 on the material changing mechanism 8 can fall into the discharge channel 15 from the third discharge hole 14, thereby completing the discharge.

[0031] Specifically, the collection bottle 11 consists of a bottle body and a rubber stopper. During injection, the output end of the collection and injection mechanism 3 can directly penetrate the rubber stopper and extend into the bottle body, thereby sending the collected rainwater into the bottle body. Then, the output end of the collection and injection mechanism 3 is pulled out, and the rubber stopper can seal the bottle body to prevent rainwater leakage.

[0032] In addition, the collected collection bottle 11 can be temporarily stored in the discharge channel 15, waiting for the staff to retrieve it.

[0033] This invention allows for the filling of 36 collection bottles 11 into the dispensing assembly 4. The dispensing assembly 4 then pushes a row of nine collection bottles 11 into the feeding mechanism 6 at once. The feeding mechanism 6 then pushes the collection bottles 11 one by one onto the material exchange mechanism 8. The collection and injection mechanism 3 then collects rainwater and injects it into the collection bottles 11, completing the rainwater collection process. It can collect 36 samples at once, making it simpler to use. After installing the collection bottles 11 onto the dispensing assembly 4, the dispensing assembly 4 can be directly installed into the dispensing chamber 16. After collection, all the collection bottles 11 will fall into the discharge channel 15, and then the collection bottles 11 can be collected uniformly. This simplifies the installation and collection of the collection bottles 11. Before rain, this device can be placed in an open-air location and, in conjunction with a controller, can automatically collect rainwater periodically during rainy periods, enabling the collection and detection of rainwater from the entire area for more accurate environmental monitoring.

[0034] The present invention provides a rainwater sampling device based on environmental detection. In this embodiment, the material dispensing component 4 includes a placement frame 43, which is installed in the material dispensing chamber 16. The placement frame 43 is provided with a plurality of placement rings 42 inside. In this embodiment, there are 36 placement rings 42 arranged in a rectangular array. The placement rings 42 are divided into four rows, with nine rings in each row. The collection bottle 11 is inserted into the placement rings 42. To facilitate material loading, a fourth telescopic rod 41 is fixedly installed inside the collection box 1. A second strong magnet 45 is fixedly installed at the movable end of the fourth telescopic rod 41. A first strong magnet 44, which is compatible with the second strong magnet 45, is fixedly installed on the side of the placement frame 43 near the fourth telescopic rod 41. In order to ensure that the collection bottle 11 can fall smoothly into the first discharge hole 5 and facilitate the installation of the collection bottle 11, a sliding base plate 46 is slidably installed at the bottom of the placement frame 43, and a limiting groove 47 adapted to the sliding base plate 46 is provided at the bottom of the discharge cavity 16.

[0035] Specifically, the depth of the limiting groove 47 is the same as the thickness of the sliding base plate 46. To facilitate the removal of the placement frame 43 from the discharge cavity 16, a pull ring is provided on the side of the placement frame 43.

[0036] Before installation, the sliding base plate 46 and the placement rack 43 overlap. The collection bottle 11 is inserted into the placement ring 42. With the obstruction of the sliding base plate 46, the collection bottle 11 is held in the placement rack 43. Then, the placement rack 43 is inserted into the discharge chamber 16. After the placement rack 43 is installed in place, the first strong magnet 44 and the second strong magnet 45 come into contact. The placement rack 43 is attracted by the first strong magnet 44. During feeding, the fourth telescopic rod 41 pushes the placement rack 43 to move. Since the sliding base plate 46 is blocked by the limiting groove 47, the placement rack 43 drives all the collection bottles 11 to move into the discharge chamber 16. The bottom of the collection bottle 11 contacts the bottom of the discharge chamber 16. When the outermost collection bottle 11 moves to the top of the first discharge hole 5, under the action of gravity, the collection bottle 11 falls from the first discharge hole 5 into the feeding mechanism 6, completing the feeding. After nine rainwater collections, once all the collection bottles 11 in the feeding mechanism 6 have fallen onto the material exchange mechanism 8, the feeding can continue. Specifically, the fourth telescopic rod 41 continues to push the placement rack 43, causing the second row of collection bottles 11 to move above the first drop hole 5. Then, all the collection bottles 11 in the second row will fall into the feeding mechanism 6. Repeating the above steps will complete the feeding operation of all the collection bottles 11 on the placement rack 43. Finally, the fourth telescopic rod 41 can drive the placement rack 43 back to its original position via the first strong magnet 44. Pulling out the placement rack 43 allows for replenishment. In this way, even if the rainy weather lasts for a long time, the device can still collect normal rainwater.

[0037] The present invention provides a rainwater sampling device based on environmental detection. In this embodiment, the feeding mechanism 6 includes two symmetrically arranged feeding components, both of which are installed in the feeding chamber 12. Each feeding component includes two first transmission rollers 61 rotatably installed in the feeding chamber 12. A first conveyor belt 62 is connected between the two first transmission rollers 61. Several first limiting semi-rings 63 are equidistantly distributed on the side of the first conveyor belt 62. The axis of the first limiting semi-rings 63 coincides with the axis of the first discharge hole 5. A first servo motor 65 is fixedly installed in the feeding chamber 12. The output shaft of the first servo motor 65 is fixedly connected to one end of a first transmission roller 61.

[0038] Specifically, the two first limiting semi-rings 63 form a complete feeding and placement ring 42, so that the collection bottle 11 falling from the first discharge hole 5 can fall directly between the two first limiting semi-rings 63.

[0039] To protect the collection bottle 11 from damage, a buffer pad 64 is provided at the bottom of the feeding chamber 12. The buffer pad 64 is located below the two first limiting semi-rings 63, and a first discharge hole 66 communicating with the second discharge hole 7 is provided on the buffer pad 64.

[0040] In use, the nine collection bottles 11 that fall from the placement rack 43 can all fall into the nine feeding placement rings 42. Then, the first servo motor 65 drives the first transmission roller 61 to rotate. The first transmission roller 61 drives the first limiting half ring 63 to move through the first conveyor belt 62. The first limiting half ring 63 drives the collection bottle 11 to move. When the collection bottle 11 moves to the top of the first discharge hole 66, the collection bottle 11 can pass through the first discharge hole 66 and the second discharge hole 7 and fall onto the material changing mechanism 8.

[0041] During material loading, only one station is moved at a time, and one feeding ring 42 is one station.

[0042] The present invention provides a rainwater sampling device based on environmental detection. In this embodiment, the material changing mechanism 8 includes a second servo motor 84 fixedly installed in the collection chamber 10. The output shaft of the second servo motor 84 is fixedly connected to a station turntable 81. The station turntable 81 is provided with a plurality of station holes 83. In this embodiment, there are four station holes 83. Initially, the axis of one station hole 83 coincides with the axis of the second discharge hole 7, so that the collection bottle 11 falling from the second discharge hole 7 can be directly inserted into the station hole 83. To facilitate material unloading, the workstation hole 83 passes through the workstation turntable 81, and a limiting base plate 82 is fixedly installed at the bottom of the collection cavity 10. The limiting base plate 82 has a second unloading hole 85 that communicates with the third unloading hole 14.

[0043] Specifically, the output end of the collection and injection mechanism 3 is located above a station hole 83. When the station turntable 81 drives the collection bottle 11 to rotate below the output end of the collection and injection mechanism 3, the collection and injection mechanism 3 can inject the collected rainwater into the collection bottle 11. After the injection is completed, the station turntable 81 can drive the collection bottle 11 to move above the second discharge hole 85. Then the collection bottle 11 falls from the second discharge hole 85 and the third discharge hole 14 into the discharge channel 15 for storage.

[0044] The present invention provides a rainwater sampling device based on environmental detection. In this embodiment, the collection and injection mechanism 3 includes a third telescopic rod 36. An injection cavity 13 is opened at the top of the collection cavity 10. The third telescopic rod 36 is fixedly installed at the top of the injection cavity 13. A fixing plate 37 is fixedly installed at the movable end of the third telescopic rod 36. A fixing connector 39 is fixedly installed on the fixing plate 37. One end of the fixing connector 39 is connected to an injection needle 310. One end of the injection needle 310 passes through the fixing plate 37. The top of the collection box 1 is provided with a rain-collecting funnel 314, the bottom of the rain-collecting funnel 314 is provided with a collection hole 34, and the top of the fixed connector 39 is connected to a second telescopic hose 35, one end of the second telescopic hose 35 is connected to the collection hole 34. To prevent excessive rainwater from flowing into the collection chamber 10 and damaging the circuitry of the device during continuous rainwater collection, a second mounting groove 32 is provided on the top of the collection box 1. A second telescopic rod 31 is fixedly installed in the second mounting groove 32. A sealing plate 33 is fixedly connected to the movable end of the second telescopic rod 31. The sealing plate 33 can seal the rainwater funnel 314.

[0045] Specifically, the collection box 1 is equipped with a rain sensor and a liquid level sensor. After the rain sensor detects rain, the entire device is activated, causing the feeding mechanism 6 to send the collection bottle 11 into the station hole 83. The station turntable 81 transports the collection bottle 11 to below the injection needle 310. Then, the third telescopic rod 36 drives the fixing plate 37 and the injection needle 310 to descend, allowing the injection needle 310 to extend into the collection bottle 11. Then, the second telescopic rod 31 drives the sealing plate 33 to move, exposing the rain-collecting funnel 314. Rainwater flows from the rain-collecting funnel 314 into the collection hole 34, and then from the second telescopic hose 35 and the fixed connector 39 into the collection bottle 11. When the collection bottle 11 is about to be filled with rainwater, the sealing plate 33 seals the rain-collecting funnel 314 again. After all the rainwater in the rain-collecting funnel 314, the collection hole 34 and the second telescopic hose 35 has flowed into the collection bottle 11, the third telescopic rod 36 drives the injection needle 310 to rise and pull the injection needle 310 out of the collection bottle 11. Then the collection bottle 11, which has been injected with rainwater, stays temporarily in the station hole 83 until it needs to be collected again. The station turntable 81 drives the collection bottle 11 to rotate, so that the collection bottle 11 moves to the top of the second discharge hole 85 and falls into the discharge channel 15 for storage.

[0046] When the sealing plate 33 seals the rain-collecting funnel 314, rainwater will also exist in the second mounting groove 32. In order to drain this part of the rainwater in time and prevent it from falling back into the rain-collecting funnel 314, multiple drainage holes 315 are provided on the side of the second mounting groove 32. The drainage holes 315 extend out of the collection box 1, so that excess water can be flushed out through the drainage holes 315.

[0047] This invention provides a rainwater sampling device based on environmental monitoring. Depending on the rainfall amount, the time it takes for the collection bottle 11 to fill varies. During the closing of the rain-collecting funnel 314, rainwater continues to flow into it. It's possible that the collection bottle 11 may be full, but there may still be excess rainwater in the collection hole 34. In this case, after the injection needle 310 is removed from the collection bottle 11, the rainwater will be directly discharged into the collection chamber 10, potentially damaging the circuitry within the collection box 1. Therefore, in this embodiment, a drainage mechanism 2 is also installed on the collection box 1. Mechanism 2 includes a first mounting groove 24 opened on the side of the injection chamber 13. A first telescopic rod 23 is fixedly installed in the first mounting groove 24. A water receiving groove 26 is fixedly installed at the movable end of the first telescopic rod 23. The top of the water receiving groove 26 is lower than the bottom of the injection needle 310, so that the water receiving groove 26 can move to below the injection needle 310. A first telescopic hose 25 is connected to the side of the water receiving groove 26. One end of the first telescopic hose 25 is connected to a return pipe 22. A water storage tank 21 is also provided on the collection box 1. One end of the return pipe 22 is connected to the water storage tank 21. The moment the injection needle 310 is pulled out of the collection bottle 11, the rainwater in the second telescopic hose 35 will flow down. To solve this problem, a solenoid valve 38 is provided on the fixed connector 39.

[0048] Specifically, a drain pipe is provided on the side of the water storage tank 21. After each use of the device, the drain pipe can be opened to drain the rainwater in the water storage tank 21 in a timely manner for the next use.

[0049] When in use, when the collection bottle 11 is about to be filled, close the solenoid valve 38 and then pull out the injection needle 310. The rainwater in the injection needle 310 will flow into the collection bottle 11, filling the collection bottle 11. The rainwater in the second telescopic hose 35 and the collection hole 34 will temporarily remain in the second telescopic hose 35. When the injection needle 310 moves above the water receiving tank 26, the first telescopic rod 23 drives the water receiving tank 26 to move below the injection needle 310. Then, open the solenoid valve 38, and the rainwater in the collection hole 34 and the second telescopic hose 35 will flow into the water receiving tank 26. Then, it will flow into the water storage tank 21 through the first telescopic hose 25 and the return pipe 22 to ensure that the collection chamber 10 is dry.

[0050] The present invention provides a rainwater sampling device based on environmental monitoring. Since the rubber stopper of the collection bottle 11 is made of rubber, its coefficient of friction is relatively large. When the injection needle 310 is pulled out of the collection bottle 11, the injection needle 310 may pull the collection bottle 11 up with it. Therefore, in this embodiment, the collection and injection mechanism 3 also includes two guide rods 311 slidably mounted on the fixed plate 37. The bottom ends of the two guide rods 311 are fixedly connected to the same pressure ring 313. The bottom of the pressure ring 313 is lower than the bottom of the injection needle 310. A compression spring 312 is connected between the pressure ring 313 and the fixed plate 37.

[0051] During rainwater injection, the third telescopic rod 36 lowers the fixing plate 37, which in turn lowers the injection needle 310 and the pressure ring 313. Since the pressure ring 313 is lower than the injection needle 310, it will contact the collection bottle 11 first. After the pressure ring 313 is blocked, the second mounting groove 32 is compressed, causing the guide rod 311 to move upward relative to the fixing plate 37. The fixing plate 37 continues to lower the injection needle 310, allowing it to be inserted into the collection bottle 11. After injection, the third telescopic rod 36 raises the injection needle 310. Under the elasticity of the compression spring 312, the pressure ring 313 holds the collection bottle 11 in place, preventing it from rising with the injection needle 310. After the injection needle 310 is completely pulled out of the collection bottle 11, the third telescopic rod 36 raises the pressure ring 313, thus solving the problem of the injection needle 310 causing the collection bottle 11 to rise together under friction.

[0052] This invention provides a rainwater sampling device based on environmental monitoring. When monitoring the environment, rainwater needs to be collected and detected in chronological order to determine changes in the environment over time. Therefore, it is necessary to mark the collection bottles 11 with serial numbers in advance and place them in the placement rack 43 according to the serial numbers to avoid stacking and disorderly arrangement of the collection bottles 11 in the discharge channel 15, which would make the installation of the collection bottles 11 more troublesome. In this embodiment, the discharge channel 15 has a U-shaped structure, one end of the discharge channel 15 penetrates the collection box 1, and the width of the discharge channel 15 is adapted to the diameter of the collection bottle 11. The inside of the collection box 1 is also equipped with a discharge mechanism 9. The discharge mechanism 9 includes a third mounting groove 91 opened inside the collection box 1. The third mounting groove 91 is connected to the discharge channel 15 and is distributed along the discharge channel 15. A plurality of second transmission rollers 92 are rotatably installed inside the third mounting groove 91. The plurality of second transmission rollers 92 are distributed along the discharge channel 15. A second conveyor belt 93 is connected to the plurality of second transmission rollers 92. A plurality of second limiting semi-rings 94 are equidistantly distributed on the side of the second conveyor belt 93. One end of the second limiting semi-rings 94 extends into the discharge channel 15. A third servo motor 95 is fixedly installed at the bottom of the third mounting groove 91. The output shaft of the third servo motor 95 is fixedly connected to one end of a second transmission roller 92. To address the interference of the second conveyor belt 93 with the movement of the collection bottle 11 at the corner of the third mounting groove 91, multiple limiting rollers 96 are rotatably installed on the upper and lower sides of the third mounting groove 91. The limiting rollers 96 are connected to the second conveyor belt 93 in a transmission manner. The multiple limiting rollers 96 are respectively installed at the two corners of the third mounting groove 91, thereby keeping the second conveyor belt 93 inside the third mounting groove 91 and preventing the second conveyor belt 93 from protruding into the discharge channel 15.

[0053] Specifically, initially, the axis of the second limiting half-ring 94 coincides with the axis of the third discharge hole 14. When the station turntable 81 drives the collection bottle 11 to move above the second discharge hole 85, the collection bottle 11 will fall directly into the second limiting half-ring 94. The second limiting half-ring 94 keeps the collection bottle 11 in a vertical state. Then, the third servo motor 95 drives the second conveyor belt 93 to move one station, so that the other empty second limiting half-ring 94 moves to below the third discharge hole 14, and the subsequent collection work can be carried out.

[0054] During discharge, the second servo motor 84 is started first to discharge the collection bottle 11 that has been injected with rainwater. Then, the third servo motor 95 is started, which drives the second conveyor belt 93 to move continuously. The second conveyor belt 93 drives all the collection bottles 11 to move through the second limit half ring 94, so that the collection bottles 11 can be discharged sequentially from the port of the discharge channel 15. The staff arranges the collection bottles 11 that are discharged sequentially in the placement box and sends the collection bottles 11 to the laboratory for testing. There is no need to number the collection bottles 11 in advance or install them in order, which makes replenishment simpler.

[0055] Working principle: Place the collection bottle 11 onto the placement ring 42 within the placement rack 43, and insert the placement rack 43 into the discharge chamber 16. Before rain, move the device to an open-air location. When the rain sensor detects rain, activate the fourth telescopic rod 41. The fourth telescopic rod 41 pushes the placement rack 43 to move, causing the collection bottle 11 to move above the first discharge hole 5. All the collection bottles 11 in the first row fall between the two first limiting half-rings 63. Then, activate the first servo motor 65. The first servo motor 65 moves the collection bottle 11 above the first discharge hole 66 via the first limiting half-rings 63, causing the collection bottle 11 to fall from the second discharge hole 7 onto the station hole 83. Then, the second servo motor 84 drives the station turntable 81 to rotate one station, rotating the collection bottle 11 below the injection needle 310. Then, the third telescopic rod 36 drives the injection needle 310 to descend, causing the injection needle 310 to insert into the collection bottle. Inside bottle 11, the second telescopic rod 31 drives the sealing plate 33 to move, opening the rain-collecting funnel 314. Rainwater flows from the rain-collecting funnel 314 into the second telescopic hose 35, and through the fixed connector 39 and the injection needle 310, into the collection bottle 11. The liquid level sensor detects the amount of rainwater flowing through the collection hole 34 in real time. When the amount of rainwater reaches the required amount of rainwater to be collected (not greater than the volume of the collection bottle 11), the second telescopic rod 31 is controlled to close the sealing plate 33, and then the solenoid valve 38 is closed. Then the third telescopic rod 36 drives the injection needle 310 to rise and pull out the injection needle 310. Then the first telescopic rod 23 drives the water tank 26 to move below the injection needle 310, opening the solenoid valve 38. The rainwater in the collection hole 34 and the second telescopic hose 35 will flow into the water tank 26, and then through the first telescopic hose 25 and the return pipe 22 into the water storage tank 21 for storage. The water tank 26 then returns to its original position. When collecting rainwater again, the first servo motor 65 is started again. The first servo motor 65 drives the collection bottle 11 to move through the first limiting half ring 63. The collection bottle 11 falls into the station hole 83. Then, the station turntable 81 drives the collection bottle 11 to rotate and injects it according to the above steps. At the same time, the collection bottle 11 that has been injected with rainwater will move to the top of the second discharge hole 85 and fall to the side of the second limiting half ring 94 in the discharge channel 15. Then, the third servo motor 95 drives the second conveyor belt 93 to move one station. This cycle is repeated to collect rainwater periodically. After the rain stopped, the staff retrieved the device and then discharged the collection bottles 11 in the discharge channel 15. Specifically, the second servo motor 84 was first started to discharge the collection bottles 11 that had been injected with rainwater. Then the third servo motor 95 was started, which drove the second conveyor belt 93 to move continuously. The second conveyor belt 93 moved all the collection bottles 11 through the second limiting half ring 94, so that the collection bottles 11 could be discharged from the port of the discharge channel 15 in sequence. The staff arranged the collection bottles 11 discharged in sequence in the placement box, and finally sent the collection bottles 11 to the laboratory. The experimenters then carried out the tests.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A rainwater sampling device based on environmental monitoring, comprising a collection box, characterized in that, The collection box has a collection cavity, and a material changing mechanism is installed inside the collection cavity. The collection box also has a feeding mechanism, which includes a discharging component and a feeding mechanism. The collection box has a discharging cavity and a feeding cavity, with the feeding cavity located above the collection cavity and below the discharging cavity. The discharging component is installed inside the discharging cavity and has multiple collection bottles on it. The bottom of the discharging cavity has multiple first discharge holes communicating with the feeding cavity. The feeding mechanism is installed inside the feeding cavity, with its input end located below the first discharge holes. The bottom of the feeding cavity has a second discharge hole communicating with the collection cavity, and the feeding mechanism is used to transport the collection bottles above the second discharge holes. The collection box is also equipped with a collection and injection mechanism. The input end of the collection and injection mechanism extends to the top of the collection box and is used to collect rainwater. The output end of the collection and injection mechanism is located above the material changing mechanism and is used to inject the collected rainwater into the collection bottle. The inside of the collection box is also provided with a discharge channel, which is located below the collection chamber. The bottom of the collection chamber is provided with a third discharge hole that communicates with the discharge channel. After the injection is completed, the collection bottle on the material changing mechanism can fall into the discharge channel from the third discharge hole. The feeding assembly includes a placement frame, which is installed inside the feeding chamber. The placement frame has multiple placement rings arranged in a rectangular array inside, and the collection bottle is inserted into the placement rings. A fourth telescopic rod is fixedly installed inside the collection box. A second strong magnet is fixedly installed at the movable end of the fourth telescopic rod. A first strong magnet that matches the second strong magnet is fixedly installed on the side of the placement frame near the fourth telescopic rod. The bottom of the placement rack is slidably mounted with a sliding base plate, and the bottom of the material discharge cavity is provided with a limiting groove that matches the sliding base plate. The feeding mechanism includes two symmetrically arranged feeding components, both of which are installed in the feeding cavity. Each feeding component includes two first transmission rollers rotatably installed in the feeding cavity. A first conveyor belt is connected between the two first transmission rollers. Several first limiting semi-rings are equidistantly distributed on the side of the first conveyor belt. The axis of the first limiting semi-rings coincides with the axis of the first discharge hole. A first servo motor is fixedly installed in the feeding cavity. The output shaft of the first servo motor is fixedly connected to one end of a first transmission roller. The material changing mechanism includes a second servo motor fixedly installed in the collection cavity. The output shaft of the second servo motor is fixedly connected to a station turntable. The station turntable has multiple evenly distributed station holes. Initially, the axis of one station hole coincides with the axis of the second material dropping hole. The workstation hole penetrates the workstation turntable, and a limiting base plate is fixedly installed at the bottom of the collection cavity. A second discharge hole communicating with the third discharge hole is provided on the limiting base plate.

2. The rainwater sampling device based on environmental monitoring according to claim 1, characterized in that, The collection and injection mechanism includes a third telescopic rod, an injection chamber is provided at the top of the collection chamber, the third telescopic rod is fixedly installed at the top of the injection chamber, a fixed plate is fixedly installed at the movable end of the third telescopic rod, a fixed connector is fixedly installed on the fixed plate, one end of the fixed connector is connected to an injection needle, and one end of the injection needle passes through the fixed plate. The top of the collection box is provided with a rain-collecting funnel, the bottom of the rain-collecting funnel is provided with a collection hole, and the top of the fixed connector is connected to a second telescopic hose, one end of the second telescopic hose being connected to the collection hole. The top of the collection box is provided with a second mounting slot, in which a second telescopic rod is fixedly installed. The movable end of the second telescopic rod is fixedly connected to a sealing plate, which can seal the rain funnel.

3. The rainwater sampling device based on environmental monitoring according to claim 2, characterized in that, The collection box is also equipped with a drainage mechanism, which includes a first mounting groove on the side of the injection chamber, a first telescopic rod fixedly installed in the first mounting groove, a water receiving groove fixedly installed at the movable end of the first telescopic rod, the top of the water receiving groove being lower than the bottom of the injection needle, a first telescopic hose connected to the side of the water receiving groove, a return pipe connected to one end of the first telescopic hose, and a water storage tank provided on the collection box, with one end of the return pipe connected to the water storage tank. A solenoid valve is installed on the fixed joint.

4. The rainwater sampling device based on environmental monitoring according to claim 2, characterized in that, The collection and injection mechanism also includes two guide rods slidably mounted on a fixed plate. The bottom ends of the two guide rods are fixedly connected to the same pressure ring. The bottom of the pressure ring is lower than the bottom of the injection needle. A compression spring is connected between the pressure ring and the fixed plate.

5. The rainwater sampling device based on environmental monitoring according to claim 1, characterized in that, The discharge channel has a U-shaped structure, with one end of the discharge channel penetrating the collection box, and the width of the discharge channel is adapted to the diameter of the collection bottle; The inside of the collection box is also equipped with a discharge mechanism. The discharge mechanism includes a third mounting slot opened inside the collection box. The third mounting slot is connected to the discharge channel and is distributed along the discharge channel. Multiple second transmission rollers are rotatably installed inside the third mounting slot. The multiple second transmission rollers are distributed along the discharge channel. A second conveyor belt is connected to the multiple second transmission rollers. Several second limiting semi-rings are equidistantly distributed on the side of the second conveyor belt. One end of the second limiting semi-rings extends into the discharge channel. A third servo motor is fixedly installed at the bottom of the third mounting slot. The output shaft of the third servo motor is fixedly connected to one end of a second transmission roller. Multiple limiting rollers are rotatably installed on the upper and lower sides of the two corners of the third mounting groove, and the limiting rollers are connected to the second conveyor belt for transmission.

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