A hydrogeological sampling device
By introducing a depth-fixing component and a sealing structure into the hydrogeological sampling device, the problem of water samples accidentally entering the water before the sampling tube reaches the specified water depth is solved, ensuring the accuracy and precision of water sample collection.
Patent Information
- Application Number
- CN202521892103.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-03
AI Technical Summary
When existing hydrogeological sampling devices are used for fixed-depth sampling, the sampling tube is placed directly into the water, and the sampling cover may be opened due to the buoyancy of the water. This can cause water to enter the sampling tube before it reaches the specified water depth, resulting in inaccurate water sampling at fixed depth.
A hydrogeological sampling device was designed, which adopts a depth-fixed component, including a float, a mounting plate, a pull rope, and a sampling cover. By adjusting the length of the pull rope between the float and the mounting plate, the sampling tube is ensured to sample at a specified water depth. Combined with a sealing ring and a sealing cover, water flow is prevented from entering, ensuring sampling accuracy.
It enables efficient water sampling at designated water depths, avoids contamination of the water sample in the sampling tube by the upper layer of water, and improves the accuracy and precision of fixed-depth sampling.
Smart Images
Figure CN224681874U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling device technology, and in particular to a hydrogeological sampling device. Background Technology
[0002] The sampling device is used to sample water in river basins during hydrogeological research. The sampling device consists of a sampling tube, a sampling handle, and a sampling cover. When using the sampling device, the sampling handle and the sampling rope are tied together. Then, the worker puts the sampling tube into the water. The sampling tube sinks into the water, and the sampling cover is opened due to buoyancy. Water then enters the sampling tube. The worker then pulls the sampling rope upward to remove the sampling tube from the water.
[0003] In their daily work, the inventors discovered that when using the sampling device, the sampling tube is placed directly into the water to collect water samples. Sometimes, a fixed depth is required for water sampling. After the sampling tube is placed directly into the water, the sampling cover will be opened due to the buoyancy of the water. This may cause water to enter the sampling tube before it reaches the specified water depth, which may result in inaccurate water sampling at a fixed depth. Utility Model Content
[0004] The purpose of this invention is to solve the problem that in actual use, when the sampling tube is directly placed into the water for water collection, and sometimes it is necessary to collect water at a certain depth, the sampling cover will be opened by the buoyancy of the water after the sampling tube is placed directly into the water. This may cause water to enter the sampling tube before it reaches the specified water depth, which may lead to inaccurate water sampling at a certain depth. Therefore, a hydrogeological sampling device is proposed.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydrogeological sampling device, comprising a sampling cylinder, a sampling handle fixedly connected to the arc surface of the sampling cylinder, a depth-fixing component provided at the upper end of the sampling cylinder, the depth-fixing component including a sampling cover detachably connected to the upper end of the sampling cylinder by means of screws, a sealing gasket provided between the sampling cylinder and the sampling cover, a circular rod fixedly connected to the upper end of the sampling cover, an mounting plate fixedly connected to the upper end of the circular rod, a circular block slidably inserted into the upper end of the mounting plate, a circular seat fixedly connected to the lower end of the circular block, a pull rope fixedly connected to the upper end of the circular block, and a float provided at the upper end of the pull rope.
[0006] The effect achieved by the above components is as follows: by setting a depth-fixing component, when a fixed depth sampling is required, the length of the pull rope between the float and the mounting plate is adjusted by the adjustment mechanism. Then, the worker puts the sampling tube into the water through the sampling rope connected to the sampling handle. The float floats on the surface. After the sampling tube sinks to the length of the pull rope between the float and the mounting plate, the sampling tube continues to sink. The float pulls the pull rope, and the circular seat at the lower end of the circular block separates from the sampling cover, so that water flows into the sampling tube, thereby achieving the effect of sampling water at the specified water depth as much as possible.
[0007] Preferably, the circular seat is slidably inserted with a sampling cover, and a sealing ring is fixedly connected to the arc surface of the circular seat.
[0008] The effect achieved by the above components is to seal the sampling cover and the circular seat by setting a sealing ring.
[0009] Preferably, a circular tube is fixedly connected to the arc surface of the float, the pull rope passes through the circular tube, and a screw is threadedly connected to the arc surface of the circular tube.
[0010] The effect achieved by the above components is to fix the rope inside the circular tube by turning the screw.
[0011] Preferably, the arc surface of the pull rope is provided with a plurality of evenly distributed adjustment holes, and the screw is adapted to the adjustment holes.
[0012] The effect achieved by the above components is as follows: by setting the adjustment hole, dragging the pull rope adjusts the length of the pull rope between the float and the mounting plate, and then turning the screw to insert it into the adjustment hole fixes the pull rope.
[0013] Preferably, the inner wall of the sampling tube is provided with a pair of sealing caps that are rotatably connected by a rotating shaft, and the arc surface of the sealing caps is fixedly connected with a rubber gasket.
[0014] The effect achieved by the above components is as follows: by setting a sealing cap and a rubber gasket, after water enters the sampling tube, the sealing cap unfolds due to the buoyancy of the water, thereby preventing the water inside the tube from being contaminated by the upper layer of water when the sampling tube is manually pulled out by pulling the sampling rope on the sampling handle, which would affect the sampling accuracy.
[0015] Preferably, a spring is fixedly connected to the upper end of the circular base, and the other end of the spring is fixed to the mounting plate.
[0016] The effect achieved by the above components is as follows: by setting up a spring and a circular block, when the circular block is pulled, the spring is compressed, releasing the pull on the circular block, and the spring and the circular seat return to their original positions.
[0017] Preferably, the arc surface of the sampling tube is provided with graduations.
[0018] The effect achieved by the above components is to pour the sampled water into the collection container by setting a scale and coordinating with the drainage mechanism.
[0019] Preferably, a drain pipe is fixedly connected to the arc surface of the sampling tube, and a valve is installed on the arc surface of the drain pipe.
[0020] The effect achieved by the above components is to open the valve, allowing the sampled water in the sampling tube to be poured into the collection container through the drain pipe.
[0021] In summary, the beneficial effects of this utility model are as follows:
[0022] In this invention, by setting a depth-fixing component, when a fixed depth sampling is required, the length of the pull rope between the float and the mounting plate is adjusted by an adjustment mechanism. Then, the worker puts the sampling tube into the water through the sampling rope attached to the sampling handle. The float floats on the surface. After the sampling tube sinks to the length of the pull rope between the float and the mounting plate, the sampling tube continues to sink. The float pulls the pull rope, and the circular seat at the lower end of the circular block separates from the sampling cover, so that water flows into the sampling tube, thereby achieving the effect of sampling water at the specified water depth as much as possible. Attached Figure Description
[0023] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0024] Figure 2 This is a three-dimensional structural diagram of the depth-fixing component of this utility model;
[0025] Figure 3 This is a three-dimensional structural diagram of the sealing cap of this utility model.
[0026] Legend: 1. Sampling tube; 2. Depth control component; 3. Scale; 4. Sampling handle; 5. Drain pipe; 6. Valve; 21. Sampling cover; 22. Circular rod; 23. Mounting plate; 24. Circular seat; 25. Sealing ring; 26. Float; 27. Circular tube; 28. Pull rope; 29. Screw; 210. Adjustment hole; 211. Spring; 212. Sealing cover; 213. Rubber pad; 214. Circular block. Detailed Implementation
[0027] Reference Figure 1 As shown, this utility model provides a technical solution: a hydrogeological sampling device includes a sampling cylinder 1, a sampling handle 4 is fixedly connected to the arc surface of the sampling cylinder 1, and a depth-fixing component 2 is provided at the upper end of the sampling cylinder 1.
[0028] Reference Figure 2As shown in this embodiment: a depth-fixing component 2 is provided at the upper end of the sampling cylinder 1. The depth-fixing component 2 includes a sampling cover 21 that is detachably connected to the upper end of the sampling cylinder 1 by means of screws. A sealing gasket is provided between the sampling cylinder 1 and the sampling cover 21. A circular rod 22 is fixedly connected to the upper end of the sampling cover 21. A mounting plate 23 is fixedly connected to the upper end of the circular rod 22. A circular block 214 is slidably inserted into the upper end of the mounting plate 23. A circular seat 24 is fixedly connected to the lower end of the circular block 214. A pull rope 28 is fixedly connected to the upper end of the circular block 214. A float 26 is provided at the upper end of the pull rope 28. By setting the depth-fixing component 2, when a fixed-depth sampling is required, the length of the pull rope 28 between the float 26 and the mounting plate 23 is adjusted by the adjusting mechanism. Then, the worker puts the sampling cylinder 1 into the water through the sampling rope connected to the sampling handle 4. The float 26 floats on the surface. After the sampling cylinder 1 sinks to the length of the pull rope 28 between the float 26 and the mounting plate 23, the sampling cylinder 1 continues to sink. Pulling the rope 28 causes the circular seat 24 at the lower end of the circular block 214 to separate from the sampling cover 21, allowing water to flow into the sampling cylinder 1. This helps to collect water at the specified depth. The circular seat 24 slides to insert the sampling cover 21, and a sealing ring 25 is fixedly connected to the arc surface of the circular seat 24. The sealing ring 25 seals the area between the sampling cover 21 and the circular seat 24. A circular tube 27 is fixedly connected to the arc surface of the float 26, and the rope 28 passes through the circular tube 27. The circular tube 27 has a screw 29 threadedly connected to its arc surface. By turning the screw 29, the pull rope 28 inside the circular tube 27 is fixed. The arc surface of the pull rope 28 has multiple evenly distributed adjustment holes 210. The screw 29 and the adjustment holes 210 are matched. By setting the adjustment holes 210, the pull rope 28 is dragged to adjust the length of the pull rope 28 between the float 26 and the mounting plate 23. Then, the screw 29 is turned and inserted into the adjustment hole 210 to fix the pull rope 28.
[0029] Refer to 1 and Figure 3As shown in this embodiment: the inner wall of the sampling tube 1 is provided with a pair of sealing caps 212 that are rotatably connected by a rotating shaft. A rubber pad 213 is fixedly connected to the arc surface of the sealing cap 212. By setting the sealing cap 212 and the rubber pad 213, after water enters the sampling tube 1, the sealing cap 212 unfolds under the buoyancy of the water, thereby avoiding the water in the tube being contaminated by the upper layer of water when the sampling tube 1 is manually pulled out by the sampling rope on the sampling handle 4, which would affect the sampling accuracy. A spring 211 is fixedly connected to the upper end of the circular seat 24, and the other end of the spring 211... The sampling tube 1 is fixed to the mounting plate 23. By setting a spring 211 and a circular block 214, when the circular block 214 is pulled, the spring 211 is compressed. When the circular block 214 is released, the spring 211 and the circular seat 24 are reset. The arc surface of the sampling tube 1 is provided with a scale 3. By setting the scale 3 in conjunction with the drainage mechanism, the sampled water is poured into the collection container. The arc surface of the sampling tube 1 is fixedly connected to a drain pipe 5. The arc surface of the drain pipe 5 is equipped with a valve 6. When the valve 6 is opened, the sampled water in the sampling tube 1 is poured into the collection container through the drain pipe 5.
[0030] Working principle:
[0031] When a fixed-depth sampling is required, drag the pull rope 28 to adjust the length of the pull rope 28 between the float 26 and the mounting plate 23. Then, tighten the screw 29 to insert it into the adjustment hole 210 to fix the pull rope 28. Then, the worker uses the sampling rope connected to the sampling handle 4 to put the sampling cylinder 1 into the water. The float 26 floats on the surface. After the sampling cylinder 1 sinks to the length of the pull rope 28 between the float 26 and the mounting plate 23, the sampling cylinder 1 continues to sink. The float 26 pulls the pull rope 28, and the circular seat 24 at the lower end of the circular block 214 separates from the sampling cover 21, so that water flows into the sampling cylinder 1, thereby achieving the effect of sampling water at the specified depth as much as possible. This is achieved by setting a seal. Ring 25 seals the area between sampling cover 21 and circular seat 24. By setting sealing cover 212 and rubber gasket 213, after water enters sampling tube 1, sealing cover 212 unfolds due to the buoyancy of the water, thus preventing the water in the tube from being contaminated by the upper layer of water when the sampling rope on sampling handle 4 is manually pulled out of sampling tube 1, which would affect the sampling accuracy. By setting spring 211 and circular block 214, when circular block 214 is pulled, spring 211 is compressed, releasing the pull on circular block 214, and spring 211 returns to its original position with circular seat 24. By observing scale 3, valve 6 is opened, allowing the sampled water in sampling tube 1 to be poured into collection container through drain pipe 5.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may use the disclosed technical content to make changes or modifications to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the scope of the utility model's technical solution, still fall within the protection scope of this utility model's technical solution. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through specific circumstances.
Claims
1. A hydrogeological sampling device, comprising a sampling cylinder (1), wherein a sampling handle (4) is fixedly connected to the arc surface of the sampling cylinder (1), characterized in that: The upper end of the sampling tube (1) is provided with a depth-fixing component (2). The depth-fixing component (2) includes a sampling cover (21) that is detachably connected to the upper end of the sampling tube (1) by means of screws. A sealing gasket is provided between the sampling tube (1) and the sampling cover (21). A circular rod (22) is fixedly connected to the upper end of the sampling cover (21). An installation plate (23) is fixedly connected to the upper end of the circular rod (22). A circular block (214) is slidably inserted into the upper end of the installation plate (23). A circular seat (24) is fixedly connected to the lower end of the circular block (214). A pull rope (28) is fixedly connected to the upper end of the circular block (214). A float (26) is provided at the upper end of the pull rope (28).
2. The hydrogeological sampling device according to claim 1, characterized in that: The circular seat (24) is slidably inserted with the sampling cover (21), and the circular arc surface of the circular seat (24) is fixedly connected with a sealing ring (25).
3. The hydrogeological sampling device according to claim 2, characterized in that: The circular tube (27) is fixedly connected to the arc surface of the float (26), the pull rope (28) passes through the circular tube (27), and the screw (29) is threadedly connected to the arc surface of the circular tube (27).
4. The hydrogeological sampling device according to claim 3, characterized in that: The arc surface of the pull rope (28) is provided with a plurality of evenly distributed adjustment holes (210), and the screw (29) is adapted to the adjustment holes (210).
5. A hydrogeological sampling device according to claim 4, characterized in that: The inner wall of the sampling tube (1) is provided with a pair of sealing caps (212) that are rotatably connected by a rotating shaft, and a rubber pad (213) is fixedly connected to the arc surface of the sealing cap (212).
6. A hydrogeological sampling device according to claim 5, characterized in that: A spring (211) is fixedly connected to the upper end of the circular seat (24), and the other end of the spring (211) is fixed to the mounting plate (23).
7. A hydrogeological sampling device according to claim 6, characterized in that: The sampling tube (1) has graduations (3) on its arc surface.
8. A hydrogeological sampling device according to claim 7, characterized in that: The sampling tube (1) is fixedly connected to a drain pipe (5), and a valve (6) is installed on the arc surface of the drain pipe (5).