Telescopic multi-point water body sampling device

Abstract

This utility model discloses a telescopic multi-point water sampling device, including a telescopic rod (1) and a box (2) with an open top. The box (2) is equipped with a fixing structure for the telescopic rod (1). A vertical partition (3) is provided inside the box (2). A storage chamber (4) is formed on one side of the partition (3). Multiple collection bottles (5) are provided in the storage chamber (4). An equipment chamber (6) is formed on the other side of the partition (3). A multi-channel peristaltic pump (8) and a power supply (9) connected to the peristaltic pump (8) are provided in the equipment chamber (6). Multiple flexible tubes (7) are stored in the equipment chamber (6). The water outlets of the multiple flexible tubes (7) pass through multiple channels of the peristaltic pump (8). A horizontal positioning plate (10) is provided in the storage chamber (4). The positioning plate (10) is provided with positioning holes (11) corresponding to the collection bottles (5). This utility model has the advantages of improving the reliability of detection results and faster collection speed.

Description

Technical Field

[0001] This utility model belongs to the field of water sampling devices, and in particular relates to a telescopic multi-point water sampling device. Background Technology

[0002] In scenarios requiring the reflection of "vertical differences in water layers," the best approach is to sample simultaneously at different depths to obtain more accurate test results. For example, in water bodies with thermoclines (water layers with abrupt temperature changes at different depths), such as lakes and reservoirs, temperature affects dissolved oxygen and pollutant solubility. If the sampling interval between different depths is too long, sunlight (such as midday warming) or water flow may alter the temperature distribution, leading to inaccurate stratification data. Similarly, when testing dissolved oxygen, surface water has high dissolved oxygen levels due to photosynthesis, while the lower layers may be oxygen-deficient due to organic matter decomposition. Furthermore, dissolved oxygen is highly influenced by temperature and biological activity (such as algal photosynthesis, which only occurs during the day). If the sampling interval between different depths exceeds 30 minutes, surface dissolved oxygen levels may decrease due to increased sunlight. As the concentration of nutrients rises, the concentration at the bottom decreases due to oxygen consumption, which can exaggerate or diminish the differences in stratification. For example, when testing for nutrients, the bottom water may have a higher concentration due to phosphorus released from sediments. However, if water flow disturbance occurs during the sampling time difference, the high concentration of nutrients at the bottom may diffuse to the upper layer, obscuring the true stratification. Similarly, when testing for biological indicators, algae gather at the surface due to phototaxis, while zooplankton may migrate vertically to different water layers (e.g., rising at night). If sampling at different depths is not synchronized, the "vertical pattern" of biological distribution will be interfered with by migration over time (e.g., zooplankton moving from the bottom to the middle layer during the sampling period).

[0003] However, in practice, single-channel peristaltic pumps are generally used for sampling. A flexible tube is attached to the pump, with a counterweight at the bottom. Water samples are obtained at corresponding depths by controlling the depth the tube enters the water. The advantage of using a peristaltic pump is that it avoids direct contact between the water and pump components, improving accuracy. However, the pump works by squeezing the tube to create negative pressure, resulting in a slow pumping speed. Each sampling depth requires re-measuring and adjusting the tube's depth, potentially taking more than 5 minutes per depth. For multiple depths, the total time often exceeds one hour, making it difficult to shorten the sampling time. The test results may differ significantly from the actual conditions at different water layers, leading to low reliability and a slow sampling speed. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic multi-point water sampling device. This invention has the advantages of improving the reliability of detection results and increasing the sampling speed.

[0005] The technical solution of this utility model is as follows: A telescopic multi-point water sampling device includes a telescopic rod and a box with an open top. The box is equipped with a fixing structure for the telescopic rod. A vertical partition is provided inside the box. One side of the partition forms a storage chamber containing multiple collection bottles. The other side of the partition forms an equipment chamber containing a multi-channel peristaltic pump and a power supply connected to the peristaltic pump. Multiple flexible tubes are stored in the equipment chamber, and the water outlets of the multiple flexible tubes pass through multiple channels of the peristaltic pump.

[0006] In the aforementioned telescopic multi-point water sampling device, the storage chamber is provided with a horizontal positioning plate, and the positioning plate is provided with positioning holes corresponding to the collection bottles.

[0007] In the aforementioned telescopic multi-point water sampling device, multiple water leakage holes are provided on the positioning plate and the bottom of the box.

[0008] In the aforementioned telescopic multi-point water sampling device, there are multiple telescopic rods, and a connecting structure is provided between the telescopic rods.

[0009] In the aforementioned telescopic multi-point water sampling device, the fixing structure includes a pressure plate located on the outside of the box, and bolts connecting the box are provided at both ends of the pressure plate.

[0010] In the aforementioned telescopic multi-point water sampling device, the water inlet end of the hose is equipped with a clamp.

[0011] In the aforementioned telescopic multi-point water sampling device, the top of the partition is provided with a slot into which a flexible tube can be inserted.

[0012] In the aforementioned telescopic multi-point water sampling device, the top of the box is provided with a cover plate, which is snapped together with the box body, and a handle is provided on the cover plate.

[0013] Compared with existing technologies, this invention utilizes telescopic rods to fix the inlet ends of multiple hoses, simultaneously determining multiple sampling depths. A multi-channel peristaltic pump is used to simultaneously extract water samples from multiple points. Multi-point sampling can be performed synchronously, shortening the sampling time to within a few minutes. This allows the test results to more accurately reflect the true condition of each layer of the water body, improving the reliability of the results. Furthermore, the water depth of each hose is concentrated and fixed for measurement, eliminating the need for repeated inlet and outlet adjustments, thus increasing the overall collection speed. Therefore, this invention has the advantages of improved reliability of test results and faster collection speed.

[0014] Furthermore, a positioning plate secures the collection bottle to prevent collisions and wear during transportation. A clamp is installed on the inlet pipe of the flexible hose to facilitate its attachment to the telescopic rod. Multiple telescopic rods, connected by a joint structure, can be joined to form a longer telescopic rod, facilitating sampling at greater water depths and broadening its applicability. Additionally, all components are housed in a casing for easy carrying and transport. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention after the cover plate has been removed.

[0016] Figure 2 This is a front view schematic diagram of this utility model.

[0017] Figure 3 This is a schematic diagram of the spring clip structure.

[0018] Figure 4 This is a schematic diagram of the chuck's structure.

[0019] The markings in the attached diagram are as follows: 1-Telescopic rod, 2-Box body, 3-Partition, 4-Storage compartment, 5-Collection bottle, 6-Equipment compartment, 7-Hose, 8-Peristaltic pump, 9-Power supply, 10-Positioning plate, 11-Positioning hole, 12-Drain hole, 13-Pressure plate, 14-Bolt, 15-Clamp, 16-Slot, 17-Cover plate, 18-Handle, 19-Spring buckle, 20-Sealing cover. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0021] Example: A telescopic multi-point water sampling device, such as Figure 1 As shown, the box includes a box body 2 with a top opening. The top of the box body 2 is provided with a cover plate 17, which is snapped together with the box body 2. The cover plate 17 has a handle 18. Preferably, the cover plate 17 can be provided with several ventilation holes to facilitate the dissipation of moisture inside the box. Multiple telescopic rods 1 are arranged from top to bottom along the width of the box body 2. The length of the telescopic rods 1 is parallel to the length of the box body 2. The length of the telescopic rods 1 is adjustable. This is an existing structure and can be purchased. Alternatively, telescopic rods of application numbers 201510319972.1, 202121237853.9, and 202021065250.0 can be used. The box body 2 is connected to the telescopic rods 1 via spring clips 19. Each telescopic rod 1 uses two spring clips 19. The spring clips 19 are made of stainless steel spring sheets and are screwed together with the box body 2.

[0022] The telescopic rods 1 are provided with a connecting structure, such as an internal thread at one end of the telescopic rod 1 and an external thread at the other end of the telescopic rod 1, so that multiple telescopic rods 1 can be spliced ​​together to form a longer telescopic rod.

[0023] The housing 2 is equipped with a fixing structure for the telescopic rod 1. The fixing structure includes a pressure plate 13 located on the outside of the housing 2, and bolts 14 for connecting the housing 2 are provided at both ends of the pressure plate 13. By placing the telescopic rod 1 inside the pressure plate 13 and tightening the bolts 14, the telescopic rod 1 can be fixed to the housing 2.

[0024] The housing 2 contains a vertical partition 3. One side of the partition 3 forms a storage compartment 4, which contains eight collection bottles 5. Each collection bottle 5 has a threaded sealing cap 20 at its opening. The other side of the partition 3 forms an equipment compartment 6, which contains a multi-channel peristaltic pump 8 and a power supply 9 connected to the peristaltic pump 8. The power supply 9 is a battery. The battery and its connection to the peristaltic pump 8 are waterproofed by wrapping with waterproof tape. The equipment compartment 6 contains eight flexible hoses 7, made of silicone or PE tubing with an inner diameter of 6-8mm. The outlet ends of the eight hoses 7 pass through the eight channels of the peristaltic pump 8, and the inlet ends of the hoses 7 are connected to clamps 15. These clamps can be ordinary stainless steel clamps or other types. Figure 4 The structure shown is as follows. Since water samples are taken from different depths, the eight flexible hoses 7 do not need to be the same length. For example, they can be 10m, 9m, 8m, 7m, 6m, 5m, 4m, and 3m respectively. The lengths can be marked on the outlet end of the hoses 7 for easy identification.

[0025] The storage compartment 4 is provided with a horizontal positioning plate 10, and the positioning plate 10 is provided with positioning holes 11 corresponding to the collection bottle 5. The positioning plate 10 is fixed to the storage compartment 4 to fix the collection bottle 5 and prevent the collection bottle 5 from shaking inside the box 2.

[0026] Multiple drainage holes 12 are provided on the positioning plate 10 and the bottom of the box 2.

[0027] The top of the partition 3 is provided with a slot 16 into which the hose 7 is inserted. The slot 16 secures the hose 7, preventing it from swinging and coming off when draining water into the collection bottle 5.

[0028] Instructions for use: Open cover 17 and open the sealing cap 20 on collection bottle 5. Remove the telescopic rod 1. According to the depth of the deepest sampling water, remove the corresponding number of telescopic rods 1. Splice the removed telescopic rods 1 together to form a longer telescopic rod, which is referred to as the main rod for ease of description. Stretch and fix the main rod to its maximum length. According to the depth of each sampling point, use clamps 15 to fix the inlet end of each hose 7 to the main rod. A measuring tape or other tools are needed for measurement. The lower end of the main rod is inserted into the water, and the upper end of the main rod is fixed to one side of the tank 2 by the pressure plate 13. If sampling a reservoir from a ship, the tank 2 is placed at the edge of the deck. Start the peristaltic pump 8. The peristaltic pump 8 will draw water samples from different depths through different hoses 7. Keep running for a period of time, such as 2 minutes, to ensure that the hoses discharge water samples drawn from the corresponding depth. Then, insert the outlet ends of different hoses 7 into different collection bottles 5. After the bottles are full, pull out the hoses 7, close the sealing cap 20, and the sampling is complete. Water overflowing from the bottle can leave the box 2 through the drain hole 12.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A telescopic multi-point water sampling device, characterized in that: The box (2) includes a telescopic rod (1) and a top opening. The box (2) is equipped with a fixed structure for the telescopic rod (1). The box (2) is equipped with a vertical partition (3). One side of the partition (3) forms a storage compartment (4). The storage compartment (4) contains multiple collection bottles (5). The other side of the partition (3) forms an equipment compartment (6). The equipment compartment (6) contains a multi-channel peristaltic pump (8) and a power supply (9) connected to the peristaltic pump (8). The equipment compartment (6) contains multiple hoses (7). The water outlets of the multiple hoses (7) pass through multiple channels of the peristaltic pump (8).

2. The telescopic multi-point water sampling device according to claim 1, characterized in that: The storage compartment (4) is provided with a horizontal positioning plate (10), and the positioning plate (10) is provided with positioning holes (11) corresponding to the collection bottle (5).

3. The telescopic multi-point water sampling device according to claim 2, characterized in that: Multiple drainage holes (12) are provided on the positioning plate (10) and the bottom of the box (2).

4. The telescopic multi-point water sampling device according to claim 1, characterized in that: There are multiple telescopic rods (1), and a connecting structure is provided between the telescopic rods (1).

5. The telescopic multi-point water sampling device according to claim 1, characterized in that: The fixing structure includes a pressure plate (13) located on the outside of the box (2), and both ends of the pressure plate (13) are provided with bolts (14) for connecting the box (2).

6. The telescopic multi-point water sampling device according to claim 1, characterized in that: The hose (7) is equipped with a clamp (15) at the water inlet end.

7. The telescopic multi-point water sampling device according to claim 1, characterized in that: The top of the partition (3) is provided with a slot (16) into which the hose (7) is inserted.

8. The telescopic multi-point water sampling device according to claim 1, characterized in that: The top of the box (2) is provided with a cover plate (17), which is snapped to the box (2), and a handle (18) is provided on the cover plate (17).

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