Sample collector for river water quality detection
By designing a river water quality testing sample collector with a detachable sampling bottle and lifting mechanism, the problem of sample mixing caused by buoyancy issues in traditional devices is solved, enabling multi-depth stratified sampling and accurately reflecting the vertical distribution of river water quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-03-17
AI Technical Summary
Traditional sampling devices suffer from buoyancy issues, resulting in samples being mixed across different water layers. This makes it impossible to achieve multi-depth stratified sampling and fails to reflect the vertical distribution characteristics of river water quality.
A sample collector for river water quality testing was designed, which uses a detachable sampling bottle and a lifting mechanism. The controller controls the electric telescopic rod to open and close the plug, enabling water quality sampling at different depths.
This method enables water quality sampling from multiple sampling bottles at different depths, avoiding the mixing of samples from different water layers and accurately reflecting the vertical distribution characteristics of river water quality.
Smart Images

Figure CN224004750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of water quality sample collection devices, and in particular to a sample collector for river water quality testing. Background Technology
[0002] River water quality monitoring is an important component of the environmental monitoring system. Water quality monitoring can reflect the changing trends of key parameters such as chemical oxygen demand (COD), total phosphorus, heavy metals, and dissolved oxygen in rivers in real time, assess the degree of water pollution, identify pollution sources, and guide the formulation of pollution control plans.
[0003] Traditional sampling devices often use sampling bottles, but these bottles float on the water surface due to buoyancy issues, resulting in samples being mixed across different water layers and failing to reflect the true water quality at a specific depth. Furthermore, existing equipment often uses a single pumping pipe or sampling bottle, making it impossible to achieve multi-depth stratified sampling and difficult to capture the vertical distribution characteristics of pollutants in the water.
[0004] To address this issue, a sample collector for river water quality testing is proposed. Utility Model Content
[0005] The purpose of this invention is to provide a sample collector for river water quality testing to solve the problems existing in the prior art. It can not only collect river water quality samples, but also facilitate the collection of water quality samples at different depths.
[0006] To achieve the above objectives, this utility model provides the following solution: This utility model provides a sample collector for river water quality testing, comprising:
[0007] A top plate, on which a common telescopic rod is fixedly connected, the common telescopic rod having several telescopic joints;
[0008] A sampling assembly includes several sampling bottles, each sampling bottle being detachably connected to a fixing ring, the fixing ring being fixedly connected to the telescopic joint, each sampling bottle having an inlet and an outlet, an upper cap being detachably connected to the inlet and disposed on a lifting mechanism, a lower cap being disposed on the outlet, the lifting mechanism being electrically connected to a controller, the controller being fixedly connected to the top plate.
[0009] Preferably, the lifting mechanism includes a plurality of electric telescopic rods, the fixed ends of the electric telescopic rods are fixedly connected to the base plate, the upper cover is fixedly connected to the bottom surface of the base plate, a fixed plate is fixedly connected to the telescopic joint, the output end of the electric telescopic rod is fixedly connected to the fixed plate, a plurality of columns are fixedly connected to the base plate, the columns are slidably connected to the fixed plate, and the electric telescopic rods are electrically connected to the controller.
[0010] Preferably, the fixing plate has several through holes, and a guide tube is fixedly connected in the through holes. The column passes through the guide tube and is slidably arranged in the guide tube.
[0011] Preferably, a limiting block is fixedly connected to the column, and the limiting block is located above the fixing plate.
[0012] Preferably, a drain pipe is connected to the outlet, the lower plug is detachably connected to the drain pipe, and the drain pipe is inclined.
[0013] Preferably, the fixing ring is sleeved on the sampling bottle, and two rubber rings are sleeved on the sampling bottle. The rubber rings are located on both sides of the fixing ring and abut against the fixing ring.
[0014] Preferably, a handle and a battery are fixedly connected to the top plate, and the electric telescopic rod and the controller are both electrically connected to the battery.
[0015] This invention discloses the following technical advantages: In this device, the sampling bottle is used to collect river water samples. The sampling bottle is detachably connected to the fixing ring, making it easy to replace when the sampling bottle is bumped or damaged. The upper cap is used to block the inlet, and the lower cap is used to block the outlet. The lifting mechanism can move the upper cap to open or close the sampling bottle. The controller controls the lifting mechanism. In use, the ordinary telescopic rod is stretched to the required length, and the specific positions of each telescopic joint can be adjusted as needed. Then, the ordinary telescopic rod is inserted into the water. The controller controls the lifting mechanism, which moves the upper cap upward, thereby opening the inlet of the sampling bottle. After the river water enters the sampling bottle, the lifting mechanism moves the upper cap to block the inlet again. Then, the ordinary telescopic rod is removed, and each telescopic joint is retracted to the appropriate length. The upper cap is opened first, and then the lower caps are opened one by one, allowing the water samples from each sampling bottle to be collected into other containers. This invention allows multiple sampling bottles to enter water layers at different depths, enabling water quality sampling at multiple depths at once, while also preventing the mixing of samples from different water layers. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the sample collector for river water quality testing according to this utility model;
[0018] Figure 2 for Figure 1 Enlarged view of point a in the middle;
[0019] The components are as follows: 1. Top plate; 2. Expansion joint; 3. Sampling bottle; 4. Fixing ring; 5. Inlet; 6. Outlet; 7. Upper cap; 8. Lower cap; 9. Controller; 10. Electric telescopic rod; 11. Base plate; 12. Fixing plate; 13. Guide tube; 14. Limiting block; 15. Drain pipe; 16. Rubber ring; 17. Handle; 18. Battery; 19. Column. Detailed Implementation
[0020] 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.
[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0022] Reference Figure 1-2 This utility model provides a sample collector for river water quality testing, comprising:
[0023] Top plate 1, a common telescopic rod is fixedly connected to the top plate 1, the common telescopic rod has several telescopic joints 2;
[0024] The sampling assembly includes several sampling bottles 3, which are detachably connected to a fixing ring 4. The fixing ring 4 is fixedly connected to a telescopic joint 2. Each sampling bottle 3 has an inlet 5 and an outlet 6. An upper plug 7 is detachably connected to the inlet 5 and is mounted on a lifting mechanism. A lower plug 8 is mounted on the outlet 6. The lifting mechanism is electrically connected to a controller 9, which is fixedly connected to a top plate 1.
[0025] In this device, sampling bottle 3 is used to collect river water samples. Sampling bottle 3 is detachably connected to fixed ring 4, making it easy to replace when sampling bottle 3 is bumped or damaged. Upper cap 7 is used to block inlet 5, and lower cap 8 is used to block outlet 6. Lifting mechanism can move upper cap 7 to open or close sampling bottle 3. Controller 9 is used to control lifting mechanism. In use, the ordinary telescopic rod is stretched to the required length, and the specific position of each telescopic joint 2 can be adjusted as needed. Then, the ordinary telescopic rod is inserted into the water. The lifting mechanism is controlled by controller 9, which moves upper cap 7 upward, thereby opening inlet 5 of sampling bottle 3. After river water enters sampling bottle 3, the upper cap 7 is moved by lifting mechanism to block inlet 5. Then, the ordinary telescopic rod is removed, and each telescopic joint 2 is retracted to the appropriate length. First, upper cap 7 is opened, and then lower cap 8 is opened one by one, collecting the water samples from sampling bottle 3 into other containers.
[0026] The scheme is further optimized. The lifting mechanism includes several electric telescopic rods 10. The fixed end of the electric telescopic rod 10 is fixedly connected to the base plate 11. The upper cover 7 is fixedly connected to the bottom surface of the base plate 11. A fixed plate 12 is fixedly connected to the telescopic joint 2. The output end of the electric telescopic rod 10 is fixedly connected to the fixed plate 12. Several columns 19 are fixedly connected to the base plate 11. The columns 19 are slidably connected to the fixed plate 12. The electric telescopic rod 10 is electrically connected to the controller 9.
[0027] When the electric telescopic rod 10 extends or retracts, it will cause the base plate 11 to rise or fall. The base plate 11 can cause the upper cover 7 to rise or fall. The column 19 can keep the base plate 11 moving vertically. The controller 9 controls the extension or retraction of the electric telescopic rod 10.
[0028] The design is further optimized by providing several through holes on the fixing plate 12, with guide tubes 13 fixedly connected inside the through holes. The column 19 passes through the guide tube 13 and slides within the guide tube 13.
[0029] The guide tube 13 facilitates the movement of the column 19 in a fixed direction.
[0030] The design is further optimized by fixing a limit block 14 to the column 19, with the limit block 14 located above the fixing plate 12.
[0031] The limiting block 14 prevents the column 19 from detaching from the guide tube 13.
[0032] The design has been further optimized. A drain pipe 15 is connected to the outlet 6, and the lower plug 8 is detachably connected to the drain pipe 15. The drain pipe 15 is set at an angle.
[0033] The drain pipe 15 facilitates the discharge of water samples from the sampling bottle 3, and the inclined drain pipe 15 facilitates the container receiving water samples.
[0034] The scheme is further optimized by mounting the fixing ring 4 on the sampling bottle 3, and mounting the sampling bottle 3 with two rubber rings 16. The rubber rings 16 are located on both sides of the fixing ring 4 and abut against the fixing ring 4.
[0035] The rubber ring 16 prevents the sampling bottle 3 from shaking up and down. When the sampling bottle 3 needs to be replaced, the rubber ring 16 can be removed first. During normal use, the rubber ring 16 is in contact with the fixing ring 4, making the sampling bottle 3 more stable.
[0036] The design is further optimized so that a handle 17 and a battery 18 are fixedly connected to the top plate 1, and the electric telescopic rod 10 and the controller 9 are both electrically connected to the battery 18.
[0037] The handle 17 makes it easy to pick up the device, and the battery 18 provides power to the device.
[0038] The method of using this device is as follows: Before placing it in water, first plug the upper cap 7 onto the inlet 5 and the lower cap 8 onto the outlet 6. Then adjust the length of each telescopic joint 2 to a suitable size, and then insert the device into the water. The controller 9 controls each electric telescopic rod 10. During sampling, the electric telescopic rod 10 retracts, the base plate 11 rises, and the base plate 11 simultaneously lifts the upper cap 7, allowing water to flow into the sampling bottle 3. Then, the controller 9 controls the electric telescopic rod 10 to extend, so that the upper cap 7 plugs the inlet 5. After removing the device from the water, open the upper cap 7 of the sampling bottle 3, and then open the lower cap 8, allowing the water sample to flow into the container, thus completing the water sample collection. The controller 9 can control each electric telescopic rod 10 individually.
[0039] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 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.
[0040] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A sample collector for river water quality detection, characterized in that, Include: The top plate (1), the ordinary telescopic rod is fixedly connected on the top plate (1), the ordinary telescopic rod has several telescopic joints (2); The sampling assembly includes several sampling bottles (3), the sampling bottle (3) is detachably connected on the fixed ring (4), the fixed ring (4) is fixedly connected on the telescopic joint (2), the sampling bottle (3) has a water inlet (5) and a water outlet (6), the water inlet (5) is detachably connected with the upper plug (7), the upper plug (7) is arranged on the lifting mechanism, the water outlet (6) is provided with the lower plug (8), the lifting mechanism is electrically connected with the controller (9), the controller (9) is fixedly connected on the top plate (1).
2. The sample collector for river water quality detection according to claim 1, characterized in that: The lifting mechanism includes several electric telescopic rods (10), the fixed end of the electric telescopic rod (10) is fixedly connected on the bottom plate (11), the upper plug (7) is fixedly connected on the bottom surface of the bottom plate (11), the telescopic joint (2) is fixedly connected with the fixed plate (12), the output end of the electric telescopic rod (10) is fixedly connected with the fixed plate (12), the bottom plate (11) is fixedly connected with several stand columns (19), the stand column (19) is slidably connected on the fixed plate (12), the electric telescopic rod (10) is electrically connected with the controller (9).
3. The sample collector for river water quality detection according to claim 2, characterized in that: Several through holes are formed in the fixed plate (12), the guide pipe (13) is fixedly connected in the through hole, the stand column (19) is arranged in the guide pipe (13), and the stand column (19) is slidably arranged in the guide pipe (13).
4. The sample collector for river water quality detection according to claim 3, characterized in that: The limit block (14) is fixedly connected on the stand column (19), and the limit block (14) is located above the fixed plate (12).
5. The sample collector for river water quality detection according to claim 1, characterized in that: The water outlet (6) is communicated with the drain pipe (15), the lower plug (8) is detachably connected on the drain pipe (15), and the drain pipe (15) is inclinedly arranged.
6. The sample collector for river water quality detection according to claim 1, characterized in that: The fixed ring (4) is sleeved on the sampling bottle (3), two rubber rings (16) are sleeved on the sampling bottle (3), the rubber ring (16) is located on both sides of the fixed ring (4), and the rubber ring (16) abuts against the fixed ring (4).
7. The sample collector for river water quality detection according to claim 2, characterized in that: The handle (17) and the storage battery (18) are fixedly connected on the top plate (1), and the electric telescopic rod (10) and the controller (9) are electrically connected with the storage battery (18).