一种地下水取样装置
By designing a groundwater sampling device with multiple electrically controlled sampling heads and control boxes, the problems of existing technologies, such as the ability to collect water samples from only a single depth during a single descent and unstable valve operation, have been solved, achieving efficient and stable multi-depth sampling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHWEST NONFERROUS METALS SURVEY ENG CO LTD
- Filing Date
- 2026-06-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing groundwater sampling methods can only collect water samples from a single depth, requiring multiple lowering operations. Furthermore, the sampling valves are unstable in opening and closing, making precise control difficult.
The design incorporates multiple sampling head assemblies, each equipped with an electrically controlled sampling valve. Electrical sampling is achieved using cables and a control box. The sampling is guided downwards by a guide depth gauge wheel, and the control box precisely controls the opening and closing of the valve, replacing the traditional steel wire rope.
It enables groundwater sampling at multiple depths with a single deployment, is simple and efficient to operate, and the sampling valves open and close reliably.
Smart Images
Figure CN224518249U_ABST
Abstract
Claims
1. A groundwater sampling device, characterized by, The sampling device includes a sampling head assembly and a sampling winch fixed to the ground; The sampling head assembly includes multiple sampling heads (1), and each sampling head (1) is equipped with an electrically controlled sampling valve (2). The sampling winch includes a fixed base (3) and a winch drum (4). The winch drum (4) is rotatably mounted on the fixed base (3). A first cable (5) is provided on the winch drum (4). One end of the first cable (5) is connected to the sampling head assembly. A guide depth gauge wheel (6) is also provided on the side of the fixed base (3) near the direction of the first cable (5) being lowered. The guide depth gauge wheel (6) is arranged parallel to the winch drum (4). The sampling device also includes a control box (7), which is connected to the other end of the first cable (5).
2. The groundwater sampling device of claim 1, wherein, The multiple sampling heads (1) are connected in parallel or in series.
3. The groundwater sampling device of claim 1 or 2, wherein, The sampling winch also includes a cantilever mounting bracket (8), one end of which is fixedly mounted to one end of the fixed seat (3), and the other end of which is rotatably mounted with the guide depth gauge wheel (6).
4. The groundwater sampling device of claim 3, wherein, The guide depth measuring wheel (6) is coaxially equipped with a depth measuring encoder at the wheel axle end; the depth measuring encoder is connected to the wiring terminal of the control box (7) via a second cable.
5. The groundwater sampling device of claim 4, wherein, The depth encoder is an incremental photoelectric encoder.
6. The groundwater sampling device of claim 1, wherein, The winch drum (4) and the fixed seat (3) are rotatably mounted via a drive shaft, and a hand crank (9) is provided at one end of the drive shaft that extends outward from the fixed seat (3).
7. The groundwater sampling device of claim 1, wherein, Each of the sampling heads (1) is equipped with a camera (10).
8. The groundwater sampling device of claim 7, wherein, The sampling head (1) includes a first opening (1-1), a second opening (1-2), and a sampling chamber (1-3). The first opening (1-1) is located at the bottom of the sampling head (1), the second opening (1-2) is located on the side wall of the upper part of the sampling head (1), and the sampling chamber (1-3) is located in the middle of the sampling head (1); Both the first opening (1-1) and the second opening (1-2) are connected to the sampling chamber (1-3); Both the first opening (1-1) and the second opening (1-2) are equipped with the electrically controlled sampling valve (2) near the sampling chamber (1-3).