A water quality sampling device for hydrological surveying

Abstract

This utility model discloses a water quality sampling device for hydrological surveying, belonging to the field of hydrological surveying technology. It includes a sampling cylinder with a sealing base plate at its bottom and a sampling port on its exterior. Through the coordinated use of these devices, pressing the sliding rod causes it to press the sealing plate in the opposite direction, allowing the sealing plate to slide downwards inside the fixed frame. Simultaneously, the filter hole aligns with the inlet pipe, allowing water from the exposed water area to enter through the inlet pipe under pressure. As the water enters, it flows towards two staggered buffer plates, creating resistance to the flow. The staggered arrangement also allows the incoming water to flow against each other, slowly entering the sampling cylinder from the inlet pipe. Simultaneously, the sealing plate and filter hole alternately contact the inlet pipe, and the diversion hood allows the water entering the inlet pipe to contact the trough plate, causing impurities and sand in the water to settle and be collected on the trough plate.

Description

Technical Field

[0001] This utility model relates to the field of hydrological surveying technology, specifically a water quality sampling device for hydrological surveying. Background Technology

[0002] A water sample collection device is a collection device used to collect and preserve water samples. However, with the development of technology, people have higher and higher requirements for collection devices, which means that traditional collection devices can no longer meet people's needs. People need collection devices that can collect water samples at different depths at the same time and are easy to replace.

[0003] An investigation revealed that a Chinese utility model patent (publication number: CN208780520U) discloses a water quality sample collection device for hydrological surveys. The device includes a main body with a top tank on its outer surface and a top cover on its outer surface. A rotating handle is located at the center of the top surface of the top cover. A first sampling tank is movably mounted on the outer surface of the bottom of the top tank, and a second sampling tank is movably mounted on the outer surface of the bottom of the first sampling tank. This utility model's water quality sample collection device for hydrological surveys includes a connecting pin, a solenoid valve, and a nano-storage tank. It allows for the installation of a corresponding number of sampling tanks as needed, making it more user-friendly. It also facilitates the replacement and storage of water samples, and enables sampling at multiple depths at once, avoiding the waste of time and effort required for multiple samplings. Furthermore, it facilitates cleaning, preventing interference with subsequent sampling and thus improving test results, leading to better application prospects.

[0004] While the aforementioned patent, through its connecting pins and slots, allows for the installation of a corresponding number of sampling tanks as needed, making it more user-friendly and facilitating the replacement and storage of water samples, it also allows for more targeted replacement. The solenoid valve, microprocessor, and battery enable simultaneous sampling at multiple depths, avoiding the waste of time and effort required for multiple samplings. The nano-storage tank facilitates cleaning, preventing interference with subsequent sampling and thus affecting test results. It is quite practical, and the overall water quality sample collection device has a simple structure and better performance than traditional methods. However, during sampling, the water pressure causes the water to flow rapidly into the sampling tank from the sampling tube, disturbing the water body and causing mixing of samples from different depths, affecting sampling stability. Furthermore, the rapid entry introduces excessive sediment and impurities. Additionally, the solenoid valve controls the closure of the sampling tube, which is costly and prone to damage, further impacting sampling stability.

[0005] Therefore, this utility model provides a water quality sampling device for hydrological surveys to solve the above problems. Utility Model Content

[0006] (a) Technical problems to be solved This utility model provides a water quality sampling device for hydrological surveys, which aims to solve the problems mentioned in the background art.

[0007] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: A sampling cylinder is included, with a sealing base plate fitted at the bottom. A sampling port is opened on the outside of the sampling cylinder, and a rubber stopper is fitted inside the sampling port. A water inlet pipe penetrates one side of the inner wall of the sampling cylinder. A convenient buffer assembly includes two sets of buffer plates, which are fixedly connected to the upper and lower ends of the water inlet pipe. A fixing frame is fixedly connected to the right side of the sampling cylinder, and a sealing plate is slidably connected inside the fixing frame. Filter holes are evenly distributed on the upper side of the sealing plate, and a sliding rod is fixedly connected to the top of the sealing plate. A flow guide is fixedly connected to one end of the water inlet pipe inside the sampling cylinder, and a honeycomb plate is fixedly connected to the top of the sealing base plate. During sampling, the entire sampling cylinder is first slowly placed into the water area. Then, by pressing the sliding rod, it presses the sealing plate in the opposite direction, causing the sealing plate to slide downward inside the fixed frame. Simultaneously, the filter hole aligns with the water inlet pipe, allowing water from the exposed water area inside the water inlet pipe to enter through the water inlet pipe under pressure. When the water enters from the water inlet pipe, the water flow will rush towards two staggered buffer plates, creating resistance to the water flow. At the same time, the staggered arrangement allows the incoming water flow to counteract each other, allowing the water flow to slowly enter the sampling tube from the water inlet pipe, ensuring the stability of the sampling and avoiding disturbance to the water flow. Meanwhile, the alternating contact between the sealing plate and the filter hole with the water inlet pipe allows the water inlet pipe to be opened and closed. The process is easy to control, low in cost, not easily damaged, and easy to promote and use. Through the flow guide, the water entering from the water inlet pipe can contact the honeycomb plate, causing impurities and sand in the water flow to settle and be collected on the honeycomb plate, achieving the purpose of removing impurities from the sample.

[0008] As a preferred technical solution of this application, a filter plate is fixedly connected inside the sampling tube. The filter plate is located at the top of the water inlet pipe. The filter plate can further improve the filtration of the water inside the sampling tube, allowing the filtered water to enter the top of the filter plate. During testing, a syringe is used to pass through the rubber stopper to sample the inside of the sampling tube.

[0009] As a preferred technical solution of this application, the sampling tube has a viewing window on its exterior, a sleeve is fixedly connected to the bottom of the fixing frame, a sliding column is slidably connected inside the sleeve, and the sliding column is fixedly connected to the bottom of the sealing plate. The viewing window facilitates observation of the sample inside the sampling tube.

[0010] As a preferred technical solution of this application, the viewing window is made of tempered glass, and a return spring is fixedly connected inside the sleeve. The return spring allows the sealing plate to slide downward under external force, and then quickly reset to seal the water inlet pipe.

[0011] As a preferred technical solution of this application, the fixing frame has two sliding grooves inside, and the sealing plate is slidably connected to the inside of the two sliding grooves. The sliding grooves can play a role in sliding and limiting the sealing plate.

[0012] As a preferred technical solution of this application, a cap is fixedly connected to the top of the slide rod, and the cap is easily accessible to the user's thumb so as to apply force to control the slide rod to slide up and down inside the fixed frame.

[0013] As a preferred technical solution of this application, magnets are fixedly connected to both sides of the sealing base plate. Two iron grooves are opened at the bottom of the sampling tube. The magnets can be magnetically attracted to the inside of the iron grooves, which can seal the bottom of the sampling tube by the sealing base plate, and also facilitate the disassembly and cleaning of the sealing base plate.

[0014] (III) Beneficial Effects During sampling, the entire sampling tube is first slowly placed into the water area. Then, by pressing the sliding rod, it is forced to press the sealing plate in the opposite direction, causing the sealing plate to slide downwards inside the fixed frame. Simultaneously, the filter hole aligns with the inlet pipe, allowing water exposed inside the water area to enter through the inlet pipe under pressure. As the water enters, the flow rushes towards two staggered buffer plates, creating resistance to the water flow. The staggered arrangement also allows the incoming water to flow against each other, ensuring the water flows slowly into the sampling tube from the inlet pipe, thus ensuring sampling stability and avoiding disturbance to the water flow. The alternating contact between the sealing plate and the filter hole with the inlet pipe allows for the opening and closing of the inlet pipe. This process is easy to control, low in cost, not easily damaged, and easy to promote and use. The flow guide allows the water entering through the inlet pipe to contact the honeycomb plate, causing impurities and sand in the water to settle and be collected on the honeycomb plate, achieving the purpose of removing impurities from the sample. Attached Figure Description

[0015] Figure 1 A schematic diagram of the external structure of a water quality sampling device for hydrological surveying; Figure 2 This is a schematic diagram of the internal structure of a water quality sampling device for hydrological surveying. Figure 3 This is a schematic diagram showing the internal structure of a water quality sampling device for hydrological surveys after disassembly. Figure 4 A water quality sampling device for hydrological surveying Figure 4 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the internal structure of the sampling port in a water quality sampling device for hydrological surveying.

[0016] In the picture: 1. Sampling cylinder; 2. Sampling port; 3. Rubber stopper; 4. Viewing window; 5. Fixing frame; 6. Sealing plate; 7. Filter hole; 8. Water inlet pipe; 9. Drainage cover; 10. Honeycomb plate; 11. Sealing base plate; 12. Magnet; 13. Iron trough; 14. Filter plate; 15. Sliding rod; 16. Cap body; 17. Slide groove; 18. Buffer plate; 19. Sleeve; 20. Return spring. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] This utility model provides a water quality sampling device for hydrological surveying, such as... Figure 1-5As shown, the hydrological survey water quality sampling device includes: a sampling cylinder 1, with a sealing base plate 11 clamped at the bottom of the sampling cylinder 1, a sampling port 2 opening on the outside of the sampling cylinder 1, a rubber stopper 3 clamped inside the sampling port 2, and a water inlet pipe 8 penetrating through one side of the inner wall of the sampling cylinder 1; a convenient buffer assembly, including two sets of buffer plates 18, which are fixedly connected to the upper and lower ends of the water inlet pipe 8, and a fixing frame 5 fixedly connected to the right side of the sampling cylinder 1, with a sealing plate slidably connected inside the fixing frame 5. 6. Filter holes 7 are evenly distributed inside the upper side of the sealing plate 6. A sliding rod 15 is fixedly connected to the top of the sealing plate 6. A diversion hood 9 is fixedly connected to one end of the water inlet pipe 8 inside the sampling tube 1. A honeycomb plate 10 is fixedly connected to the top of the sealing base plate 11. When sampling, the entire sampling tube 1 is first slowly placed into the water area. Then, the sliding rod 15 is pressed to make it press the sealing plate 6 in the opposite direction, causing the sealing plate 6 to slide downward inside the fixing frame 5. Simultaneously, the filter holes 7 are aligned with the water inlet pipe 8, allowing the water inlet pipe 8 to... Water from the exposed water area enters through the inlet pipe 8 under pressure. As the water enters, it flows towards two staggered buffer plates 18, creating resistance to the flow. The staggered arrangement also allows the incoming water to flow against each other, ensuring a slow and stable flow into the sampling cylinder 1. This prevents disturbance to the water flow. Furthermore, the alternating contact between the sealing plate 6 and the filter holes 7 with the inlet pipe 8 allows for easy opening and closing of the pipe. This process is easy to control, cost-effective, durable, and readily applicable. In use, the water entering through the inlet pipe 8 can come into contact with the honeycomb plate 10 through the drainage hood 9, so that impurities and sand in the water flow can be precipitated and collected on the honeycomb plate 10, thereby achieving the purpose of removing impurities from the sample. A filter plate 14 is fixedly connected inside the sampling cylinder 1. The filter plate 14 is located at the top of the inlet pipe 8. The filter plate 14 can further improve the filtration of the water inside the sampling cylinder 1, allowing the filtered and impurity-removed water to enter the top of the filter plate 14. During testing, the sample inside the sampling cylinder 1 is sampled by passing a syringe through the rubber stopper 3.

[0019] The sampling tube 1 has a viewing window 4 on its outside. The bottom of the fixing frame 5 is fixedly connected to a sleeve 19. A sliding column is slidably connected inside the sleeve 19. The sliding column is fixedly connected to the bottom of the sealing plate 6. The viewing window 4 allows for easy observation of the sample inside the sampling tube 1. The viewing window 4 is made of tempered glass. A return spring 20 is fixedly connected inside the sleeve 19. The return spring 20 allows the sealing plate 6 to slide downwards under external force, and then quickly reset to seal the water inlet pipe 8.

[0020] The mounting bracket 5 has two sliding grooves 17 inside, and the sealing plate 6 is slidably connected to the two sliding grooves 17. The sliding grooves 17 can limit the sliding of the sealing plate 6. The top of the sliding rod 15 is fixedly connected to a cap 16, which is easy for the user's thumb to contact, so as to apply force to control the sliding of the sliding rod 15 up and down inside the mounting bracket 5. Magnets 12 are fixedly connected to the outside of both sides of the sealing base plate 11. The bottom of the sampling cylinder 1 has two iron grooves 13. The magnets 12 can be magnetically attracted to the inside of the iron grooves 13, which can seal the bottom of the sampling cylinder 1 with the sealing base plate 11, and also facilitate the disassembly and cleaning of the sealing base plate 11.

[0021] When using this hydrological survey water quality sampling device, pressing the sliding rod 15 causes it to press the sealing plate 6 in the opposite direction, causing the sealing plate 6 to slide downward inside the fixing frame 5. Simultaneously, the filter hole 7 overlaps with the water inlet pipe 8, allowing water from the exposed water area inside the water inlet pipe 8 to enter through the water inlet pipe 8 under pressure. When the water enters through the water inlet pipe 8, the water flow will rush towards the two staggered buffer plates 18, creating resistance to the water flow. At the same time, the sealing plate 6 and the filter hole 7 alternately contact the water inlet pipe 8, which can realize the opening and closing of the water inlet pipe 8. The process is easy to control, low cost, not easy to damage, and easy to promote and use. The flow guide hood 9 allows the water entering through the water inlet pipe 8 to contact the honeycomb plate 10, causing impurities and sand in the water flow to settle and be collected on the honeycomb plate 10.

[0022] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A water quality sampling device for hydrographic surveying comprising a sampling barrel (1) characterised in that: The bottom of the sampling tube (1) is fitted with a sealing base plate (11), the outside of the sampling tube (1) is provided with a sampling port (2), the inside of the sampling port (2) is fitted with a rubber stopper (3), and a water inlet pipe (8) passes through one side of the inner wall of the sampling tube (1). The convenient buffer assembly includes two sets of buffer plates (18), which are fixedly connected to the upper and lower ends of the water inlet pipe (8). A fixing frame (5) is fixedly connected to the outside of the right side of the sampling tube (1). A sealing plate (6) is slidably connected inside the fixing frame (5). Filter holes (7) are evenly opened on the upper side of the sealing plate (6). A sliding rod (15) is fixedly connected to the top of the sealing plate (6). A flow guide (9) is fixedly connected to one end of the water inlet pipe (8) inside the sampling tube (1). A honeycomb plate (10) is fixedly connected to the top of the sealing base plate (11).

2. The water quality sampling device for hydrographic surveying according to claim 1, characterized in that: A filter plate (14) is fixedly connected inside the sampling tube (1), and the filter plate (14) is located at the top of the water inlet pipe (8).

3. The water quality sampling device for hydrographic surveys of claim 1, wherein: The sampling tube (1) has a viewing window (4) on its outside. The bottom end of the fixing frame (5) is fixedly connected to a sleeve (19), and a sliding column is slidably connected inside the sleeve (19).

4. The water quality sampling device for hydrographic surveys of claim 3, wherein: The viewing window (4) is made of tempered glass, and a return spring (20) is fixedly connected inside the sleeve (19).

5. The water quality sampling device for hydrographic surveys of claim 1, wherein: The fixing frame (5) has two sliding grooves (17) inside.

6. The water quality sampling device for hydrographic surveys of claim 1, wherein: The top of the slide rod (15) is fixedly connected to a cap (16).

7. The water quality sampling device for hydrographic surveys of claim 1, wherein: Magnets (12) are fixedly connected to both sides of the sealing base plate (11), and two iron grooves (13) are opened at the bottom of the sampling tube (1).

Images