Water quality test sampling device
By filling the buoy with water and pressurizing it with a pump, combined with a motor-driven winding roller and an air pump for suction, the problem of inconvenient tilting and transportation of water quality sampling devices has been solved, achieving stability and convenience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN SHANGKE ENGINEERING INSPECTION CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-31
AI Technical Summary
Existing water quality sampling devices are prone to tipping over due to the unstable center of gravity of the buoy, and are inconvenient to handle and transport.
By adding water to the buoy to increase stability, and using a pump to inject air and pressurize it, combined with a motor-driven winding roller to unwind the sampling conduit, and an air pump to suction, water can be collected and sealed for preservation.
It effectively reduced the risk of the device tipping over, improved the convenience of handling and relocation, and enabled water quality sampling at different depths.
Smart Images

Figure CN224581195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water quality sampling technology, specifically a water quality testing and sampling device. Background Technology
[0002] Water is an essential substance in our daily lives. Whether it is drinking water, industrial water, or irrigation water, it needs to be tested by relevant departments or units to ensure that drinking water meets the requirements for healthy drinking and that industrial wastewater meets the discharge standards. In order to ensure safe water use, it is usually necessary to regularly sample and test the water quality, which requires the use of appropriate sampling devices.
[0003] A search revealed a water quality sampling device disclosed in patent document CN 222336866 U. The device floats in the water using a buoy as a base for water quality testing. However, the buoy itself is relatively light, while the sampling equipment installed on it is relatively heavy, causing the center of gravity to shift upwards. This makes it prone to tipping over when placed in the water. Adding counterweights directly inside the buoy would increase the overall weight of the device, making it difficult to handle and transport. Utility Model Content
[0004] The purpose of this invention is to provide a water quality testing and sampling device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: A water quality testing sampling device includes a buoy, a sampling component installed on the top surface of the buoy, the buoy being hollow, an outlet pipe fixedly connected to the side of the buoy, the bottom end of the outlet pipe being inserted into the bottom side of the buoy, the top end of the outlet pipe extending out from the top side wall of the buoy, a filling port provided on the top surface of the buoy, a matching cap being threaded into the filling port, and a first pipe fixedly connected to the top surface of the buoy, the end of the first pipe being connected to the air outlet of a pump body.
[0006] As a further embodiment of this utility model: the sampling assembly includes a take-up roller, which is rotatably connected between the tops of two support side plates. The support side plates are fixedly connected to the top surface of the buoy. A motor is provided at one end of the take-up roller, and the motor is fixedly installed on the support side plate. The output end of the motor is fixedly connected to the take-up roller.
[0007] As a further embodiment of this utility model: a sampling guide is wound around the winding roller, one end of the sampling guide passes through the buoy and is fixedly connected to a sinker, the winding roller is hollow, the other end of the sampling guide is connected to the winding roller, and the other end of the winding roller is rotatably connected to a second pipe through a rotating pipe joint, and the second pipe is fixedly connected to the air inlet end of the pump body.
[0008] As a further embodiment of this utility model: a first three-way valve is fixedly installed on the second pipeline, and a second three-way valve is fixedly installed on the first pipeline.
[0009] As a further embodiment of this utility model: a traction steel wire is threaded inside the sampling conduit, one end of the traction steel wire is fixedly connected to the winding roller, and the other end of the traction steel wire is fixedly connected to the sinker.
[0010] As a further improvement of this utility model, an anchor pin is fixedly installed on the buoy.
[0011] As a further embodiment of this utility model: branch pipes are fixedly connected at equal intervals on the sampling conduit, and a cover is fixedly connected to the end of the branch pipe. An inlet pipe is also fixedly connected to the cover. A collection bottle that is compatible with the cover is connected to the cover internally by a thread. A pressure sealing component is provided in both the inlet pipe and the branch pipe.
[0012] As a further embodiment of this utility model: the pressurized sealing assembly includes a stopper seat, a stopper head, a first star-shaped component, a second star-shaped component, and a spring. The stopper seat and the second star-shaped component are both fixedly connected to the corresponding branch pipe and the inlet pipe. The first star-shaped component is fixedly connected to the stopper head and slidably connected to the branch pipe and the inlet pipe. The stopper head is inserted into the stopper seat and is adapted to the stopper seat. The spring is disposed between the first star-shaped component and the second star-shaped component and abuts against the first star-shaped component and the second star-shaped component.
[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention allows water to be added to the buoy through the filling port, increasing its stability. Simultaneously, a pump, in conjunction with the first pipe, can pressurize the buoy by injecting air, expelling the water and facilitating its transport after use. This effectively reduces the risk of tipping over during use and facilitates easy handling and relocation.
[0014] This invention uses a motor-driven take-up roller for unwinding, which facilitates the placement of the sampling tube into the water body with the help of a sinker. With the help of an air pump, the water is drawn into the collection bottle, and a pressurized sealing component maintains the seal during placement and removal, preventing water from entering other water layers and facilitating sampling at different depths. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of a water quality testing sampling device.
[0016] Figure 2 This is a cross-sectional view of a water quality testing sampling device.
[0017] Figure 3 This is a longitudinal sectional view of a water quality testing sampling device.
[0018] Figure 4This is a partial cross-sectional view of a water quality testing sampling device.
[0019] In the diagram: 1. Buoy; 2. Sampling assembly; 3. Outlet pipe; 4. Filling port; 5. Cap; 6. First pipe; 7. Pump body; 8. Rewinding roller; 9. Support side plate; 10. Motor; 11. Sampling guide tube; 12. Sink; 13. Second pipe; 14. First three-way valve; 15. Second three-way valve; 16. Traction wire; 17. Rotating pipe joint; 18. Anchor pin; 19. Branch pipe; 20. Cap; 21. Inlet pipe; 22. Collection bottle; 23. Plug seat; 24. Plug head; 25. First cross-shaped component; 26. Second cross-shaped component; 27. Spring. 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] Please see Figures 1-4 In this embodiment of the present invention, a water quality test sampling device includes a buoy 1, a sampling component 2 installed on the top surface of the buoy 1, the buoy 1 being hollow, and an outlet pipe 3 fixedly connected to the side of the buoy 1. The outlet pipe 3 is L-shaped, with its bottom end inserted into the bottom side of the buoy 1 and its top end extending from the top side wall of the buoy 1. The top surface of the buoy 1 is provided with a filling port 4, which has an internal thread. A matching cap 5 is connected to the internal thread of the filling port 4, and the outer wall of the cap 5 has an external thread. A first pipe 6 is fixedly connected to the top surface of the buoy 1 and communicates with it. The end of the first pipe 6 is connected to the air outlet of a pump body 7, and the pump body 7 is fixedly installed on the side wall of a support side plate 9.
[0022] During use, water can be added to the buoy 1 through the filling port 4 to increase stability. Simultaneously, air can be injected into the buoy 1 via the pump body 7 and the first pipe 6 to pressurize it and force out the water, facilitating its transport after use. This effectively reduces the risk of tipping over during use and facilitates transport and relocation.
[0023] The sampling assembly 2 includes a take-up roller 8, which is rotatably connected between the tops of two support side plates 9. The support side plates 9 are fixedly connected to the top surface of the buoy 1. A motor 10 is provided on one end of the take-up roller 8. The motor 10 is fixedly installed on the support side plate 9, and the output end of the motor 10 is fixedly connected to the take-up roller 8.
[0024] A sampling guide tube 11 is wound around the take-up roller 8. The sampling guide tube 11 has scale lines. One end of the sampling guide tube 11 passes through the buoy 1 and is fixedly connected to the sinker 12. The buoy 1 has a clearance hole for the sinker to pass through. The take-up roller 8 is hollow. The other end of the sampling guide tube 11 is connected to the take-up roller 8. The other end of the take-up roller 8 is rotatably connected to the second pipe 13 through the rotating pipe joint 17. The second pipe 13 is fixedly connected to the air inlet end of the pump body 7.
[0025] A first three-way valve 14 is fixedly installed on the second pipe 13, and a second three-way valve 15 is fixedly installed on the first pipe 6.
[0026] A traction steel wire 16 is threaded through the sampling conduit 11. One end of the traction steel wire 16 is fixedly connected to the winding roller 8, and the other end of the traction steel wire 16 is fixedly connected to the sinker 12.
[0027] An anchor 18 is fixedly installed on the buoy 1. The anchor 18 can be used to connect the towing rope and lead the line through the towing rope. At the same time, the power line is led out. The buoy 1 can be moved in the water by the towing rope and the anchor 18.
[0028] The sampling conduit 11 is fixedly connected to branch tubes 19 at equal intervals. The end of the branch tube 19 is fixedly connected to a cap 20. The cap 20 is also fixedly connected to an inlet tube 21. The cap 20 is internally threaded to a matching collection bottle 22. Both the inlet tube 21 and the branch tube 19 are equipped with pressure sealing components. The bottle mouth of the collection bottle 22 is provided with external threads, and the inner side of the cap 20 is provided with internal threads.
[0029] The pressurized sealing assembly includes a stopper seat 23, a stopper head 24, a first star-shaped component 25, a second star-shaped component 26, and a spring 27. The stopper seat 23 and the second star-shaped component 26 are both fixedly connected to the corresponding branch pipe 19 and the inlet pipe 21. The first star-shaped component 25 is fixedly connected to the stopper head 24 and is slidably connected to the branch pipe 19 and the inlet pipe 21. The stopper head 24 is inserted into the stopper seat 23 and is adapted to the stopper seat 23. The spring 27 is disposed between the first star-shaped component 25 and the second star-shaped component 26 and abuts against the first star-shaped component 25 and the second star-shaped component 26.
[0030] The motor 10 drives the take-up roller 8 to unwind, which facilitates the sinking of the sampling tube 11 into the water body with the sinker 12. With the suction of the air pump, the water is drawn into the collection bottle 22 and is kept sealed during insertion and removal by the pressurized sealing component to prevent water from entering other water layers, which is convenient for sampling at different depths.
[0031] The pump body 7 and the motor 10 are connected to an external power supply and switch.
[0032] The working principle of this utility model is as follows: In use, float 1 is placed in water, water is added through filling port 4, and sealed with cap 5. The first three-way valve 14 and the second three-way valve 15 are adjusted to connect the air inlet of pump body 7 to the inner cavity of take-up roller 8 through the second three-way valve 15, the second pipe 13, and the rotating pipe joint 17. At this time, float 1 floats on the water surface. The motor 10 drives the take-up roller 8 to unwind, causing the sampling tube 11 to fall into the water by sinking 12. The pump body 7 draws air, creating a negative pressure inside the sampling tube 11. This causes the stopper seat 23 and stopper head 24 of the pressurized sealing component on branch pipe 19 to open, thereby creating a negative pressure inside collection bottle 22. This causes the stopper seat 23 and stopper head 24 of the pressurized sealing component on liquid inlet pipe 21 to open, thus achieving liquid sampling.
[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A water quality test sampling device comprising a float (1), characterised in that: The top surface of the buoy (1) is equipped with a sampling component (2). The buoy (1) is hollow. A liquid outlet pipe (3) is fixedly connected to the side of the buoy (1). The bottom end of the liquid outlet pipe (3) is inserted into the bottom side of the buoy (1). The top end of the liquid outlet pipe (3) extends out from the top side wall of the buoy (1). The top surface of the buoy (1) is provided with a filling port (4). A cap (5) that is compatible with the filling port (4) is threaded inside. The top surface of the buoy (1) is fixedly connected to a first pipe (6) that communicates with it. The end of the first pipe (6) is connected to the air outlet of the pump body (7).
2. The water quality test sampling device of claim 1, wherein: The sampling assembly (2) includes a take-up roller (8), which is rotatably connected between the tops of two support side plates (9). The support side plates (9) are fixedly connected to the top surface of the buoy (1). A motor (10) is provided on one end of the take-up roller (8). The motor (10) is fixedly installed on the support side plate (9). The output end of the motor (10) is fixedly connected to the take-up roller (8).
3. A water quality testing sampling device according to claim 2, wherein: A sampling conduit (11) is wound around the take-up roller (8). One end of the sampling conduit (11) passes through the buoy (1) and is fixedly connected to the sinker (12). The take-up roller (8) is hollow. The other end of the sampling conduit (11) is connected to the take-up roller (8). The other end of the take-up roller (8) is rotatably connected to the second pipe (13) through the rotating pipe joint (17). The second pipe (13) is fixedly connected to the air inlet end of the pump body (7).
4. A water quality testing sampling device according to claim 3, wherein: A first three-way valve (14) is fixedly installed on the second pipe (13), and a second three-way valve (15) is fixedly installed on the first pipe (6).
5. The water quality test sampling device of claim 3, wherein: The sampling conduit (11) is provided with a traction steel wire (16), one end of which is fixedly connected to the winding roller (8), and the other end of which is fixedly connected to the sinker (12).
6. The water quality testing sampling device of claim 1, wherein: Anchor pins (18) are fixedly installed on the buoy (1).
7. The water quality testing sampling device of claim 3, wherein: The sampling conduit (11) is fixedly connected with branch pipes (19) at equal intervals. The end of the branch pipe (19) is fixedly connected with a cap (20). The cap (20) is also fixedly connected with an inlet pipe (21). The cap (20) is threaded with a matching collection bottle (22). Both the inlet pipe (21) and the branch pipe (19) are equipped with pressure sealing components.
8. A water quality testing sampling device according to claim 7, wherein: The pressurized sealing assembly includes a stopper seat (23), a stopper head (24), a first cross-shaped component (25), a second cross-shaped component (26), and a spring (27). The stopper seat (23) and the second cross-shaped component (26) are both fixedly connected to the corresponding branch pipe (19) and the inlet pipe (21). The first cross-shaped component (25) is fixedly connected to the stopper head (24) and slidably connected to the branch pipe (19) and the inlet pipe (21). The stopper head (24) is inserted into the stopper seat (23) and is adapted to the stopper seat (23). The spring (27) is disposed between the first cross-shaped component (25) and the second cross-shaped component (26) and abuts against the first cross-shaped component (25) and the second cross-shaped component (26).