一种海水采样设备
By designing a coaxially distributed sampling tank and counterweight mechanism in the seawater sampling equipment, the problem of unstable posture of the equipment when sampling at different depths was solved, thereby improving the stability and efficiency of seawater sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN INST OF GUANGDONG OCEAN UNIV
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-17
AI Technical Summary
When conventional seawater sampling equipment samples at different depths, the center of gravity of the assembled structure changes continuously, causing instability in the equipment's posture and affecting the normal progress of the sampling work.
A seawater sampling device was designed, in which sampling tanks are evenly distributed coaxially along the length of a fixed rod, and a counterweight mechanism is located below the sampling tanks to ensure that the center of gravity is located on the central axis of the fixed rod. The counterweight and fasteners maintain a stable posture, and the device is combined with a lifting mechanism to achieve stable seabed sampling.
Maintaining the stable posture of the equipment during sampling at different depths improves the efficiency and stability of seawater sampling, reduces the risk of equipment deflection, and ensures the smooth progress of seawater sampling work.
Smart Images

Figure CN224518248U_ABST
Abstract
Claims
1. A seawater sampling apparatus, characterized by, Includes a sampling component, the sampling component comprising: The mounting mechanism includes a fixing rod; The sampling can is provided in at least two, and each sampling can has a mounting hole for the fixing rod to pass through. Each sampling can is coaxial and evenly arranged along the length of the fixing rod, and the sampling can is fixedly connected to the mounting mechanism. The sampling can has an annular cavity inside, and the central axis of the mounting hole is collinear with the central axis of the annular cavity. A counterweight mechanism is connected to the mounting mechanism, and when the sampling component is sampling, the counterweight mechanism is located below each of the sampling tanks, and keeps the center of gravity of the sampling component below each of the sampling tanks. The counterweight mechanism includes multiple detachable counterweight blocks.
2. The seawater sampling apparatus of claim 1, wherein, The installation mechanism also includes a chassis and a pressure plate. One end of the fixing rod is fixedly connected to the chassis, and the other end of the fixing rod passes through the pressure plate. Each sampling can is clamped between the chassis and the pressure plate. The fixing rod is provided with fixing holes corresponding to the positions of each sampling can. The pressure plate is provided with fasteners that screw into the fixing holes. The side of the chassis away from the fixing rod is fixedly connected to the counterweight mechanism.
3. The seawater sampling apparatus of claim 2, wherein, The upper and lower surfaces of the sampling container are respectively provided with a first positioning groove and a protrusion; the side of the pressure plate facing the sampling container is provided with a first positioning block that matches the first positioning groove, and the side of the chassis facing the sampling container is provided with a second positioning groove that matches the protrusion.
4. The seawater sampling apparatus of claim 2, wherein, The counterweight mechanism includes a counterweight block and a screw. The two opposite ends of the counterweight block are respectively provided with a third positioning groove and a third positioning block. The third positioning groove and the third positioning block fix the different counterweight blocks relative to each other in the axial and circumferential directions. The chassis is provided with a second positioning block that cooperates with the third positioning groove. One end of the screw passes through multiple counterweight blocks and is screwed into a threaded hole on the mounting mechanism.
5. The seawater sampling apparatus of claim 1, wherein, The upper end of the outer side of the annular cavity is provided with no less than two exhaust pipes. One end of the exhaust pipe is connected to the annular cavity, and the other end is provided with a one-way valve that allows the airflow inside the annular cavity to overflow. The lower end of the outer side of the annular cavity is provided with no less than two water inlet pipes. One end of the water inlet pipe is connected to the annular cavity, and the other end is provided with a valve that controls the water flow into the annular cavity in one direction.
6. The seawater sampling apparatus of claim 5, wherein, The valve includes an integrated upper valve and a lower valve, the lower valve abutting against the outer end face of the water inlet pipe; the valve is provided with a shaft, and the water inlet pipe is provided with a rotating shaft that cooperates with the shaft; the water inlet pipe is provided with a magnetically controllable electromagnetic component, and the valve is provided with a magnetic attraction part that fits against the electromagnetic component.
7. The seawater sampling apparatus of claim 6, wherein, The water inlet pipe is provided with an arc-shaped baffle, and the side of the arc-shaped baffle near the upper petal is provided with a slope, and the upper petal is provided with a chamfer that abuts against the slope.
8. The seawater sampling apparatus of any one of claims 5-7, wherein, Multiple exhaust pipes and multiple water inlet pipes are evenly distributed around the outer circumference of the sampling tank; the length direction of the water inlet pipe is deviated from the axis of the annular cavity, so that the water flow into the annular cavity forms a vortex; the exhaust pipe is parallel to the water inlet pipe and the exhaust direction is opposite to the water inlet direction of the water inlet pipe.
9. The seawater sampling apparatus according to any one of claims 1 to 7, characterized in that, It also includes a lifting mechanism, which includes a base and a take-up reel. The take-up reel is rotatably connected to the base. The take-up reel is provided with a traction rope. One end of the traction rope is wound around the take-up reel, and the other end is tied to the hanging ring of the mounting mechanism.
10. The seawater sampling apparatus of claim 9, wherein, The base is provided with a swing wheel, which is in rolling contact with the traction rope; the swing wheel is provided with a swing arm, one end of which is rotatably connected to the swing wheel, and the other end is fixedly connected to a driven wheel that is rotatably connected to the base; the base is provided with a drive motor, and the output end of the drive motor is provided with a drive wheel that is pulsatorically connected to the driven wheel.