Multidepth water environment stratification sampler
By designing a multi-depth water environment stratification sampler, a dynamic balance is achieved by using a counterweight lead block and a float. Combined with a rotating rod and a limiting plate, the sampler can sink accurately and collect water samples in layers. This solves the problems of samplers being unable to accurately reach the target water layer and water sample mixing in existing technologies, and realizes efficient multi-depth water body stratification sampling and independent storage.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 重庆新天地环境检测技术有限公司
- Filing Date
- 2025-06-06
- Publication Date
- 2026-07-21
AI Technical Summary
Existing surface water stratification samplers are prone to sinking rapidly due to excessive gravity or floating due to excessive buoyancy during use, making it difficult to accurately reach the target water layer. Furthermore, water samples from different depths may mix during the collection process, leading to cross-contamination.
A multi-depth water environment stratified sampler is adopted. Through the design of the sinking component and the stratification control component, the sampler sinks at a uniform speed by forming a dynamic balance with the counterweight lead block and the float. The water sample is collected and stored in layers at different depths by the rotating rod and the limiting rotating plate.
It enables precise control of the sampler to reach the target water layer, avoids uneven sinking speed and water sample mixing, ensures independent collection and storage of water samples at multiple depths, and reduces sampling disturbance and cross-contamination.
Smart Images

Figure CN224535503U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water environment technology, and in particular to a multi-depth water environment stratification sampler. Background Technology
[0002] Environmental monitoring is the process of continuously or periodically observing the quality of environmental elements such as air, water, and soil using scientific methods to assess the health of the environment. Pollutant monitoring, on the other hand, involves quantitative analysis of specific hazardous substances to track their sources, distribution, and concentration changes. Both rely on technologies such as sensors and laboratory analysis to provide data support for pollution control and policy formulation. Environmental monitoring provides macro-level assessment, while pollutant monitoring focuses on the micro-level; together, they constitute the fundamental system of environmental protection.
[0003] A surface water stratification sampler disclosed in publication number CN216082191U, although this utility model provides a surface water stratification sampler, adopts a combination of a rock wall protection support pipe, a clamping fixing pipe, support legs, a pad plate, a water inlet, and a downward-extending graduated pipe. A relatively deep hole is drilled in the ground using a drilling machine, and the rock wall protection support pipe is inserted into the hole until its top protrudes above the ground. The clamping fixing pipe is used to fix the top of the rock wall protection support pipe, and the support legs and pad plate are used to protect the rock wall. The system uses a support pipe for support and an inlet on the outer surface of the support pipe to introduce water into the hole during descent, ensuring that the water source remains the same at each depth. A graduated tube is then inserted into the support pipe, and the water source at each depth is recorded according to the graduations on the tube and the support pipe. This system allows for the measurement of underground depth, solving the problems of ineffective underground depth measurement and the inability to guarantee the quality of water at each depth, thus achieving the goal of recording the water source at each depth.
[0004] However, this surface water stratification sampler has the following drawbacks: (1) When staff use the stratified sampler to collect samples, the sampler may sink rapidly due to excessive gravity or float up due to excessive buoyancy, making it difficult to accurately reach the target water layer and causing the water sample collection position to deviate. (2) When staff use a stratified sampler to collect samples, water samples from different depths may mix during the collection process, resulting in cross-contamination between samples. Utility Model Content
[0005] (a) Technical problems to be solved The technical problem solved by this utility model is to provide a highly practical, simple-to-operate, and structurally simple multi-depth water environment stratification sampler. This solves the problems mentioned in the background art, such as the sampler sinking rapidly due to excessive gravity or floating due to excessive buoyancy when the staff uses the stratification sampler, making it difficult to accurately reach the target water layer, the deviation of the water sample collection position, and the mixing of water samples from different depths during the collection process, which may lead to cross-contamination between samples.
[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a multi-depth water environment stratification sampler, comprising: a connecting component, a sinking component, and a stratification control component, characterized in that: The connecting assembly consists of a cylindrical A and a circular tube A, with the circular tube A connected through to the bottom of the cylindrical A. The sinking assembly consists of a water pump and a counterweight lead block installed at the top of cylinder A. The output end of the water pump is fixedly connected to a water outlet pipe, the input end of the water pump is fixedly connected to a water pumping pipe, a float is fixedly connected to the middle of the surface of the water pumping pipe, and a counterweight lead block is fixedly connected to the bottom of the surface of the water pumping pipe. The layered control component consists of an A connecting slot block and a B rotating rod disposed on one side of the A circular tube. An A circular hole is opened on one side of the A circular tube and the A connecting slot block. An A rotating rod is rotatably connected to the inner wall of the A circular hole. One end of the A rotating rod is fixedly connected to an A rotating block, and the other end of the A rotating rod is fixedly connected to an A limiting rotating plate. A B connecting slot block is fixedly connected to the other side of the A circular tube. A B circular hole is opened on the other side of the A circular tube and the B connecting slot block. A B rotating rod is installed on the inner wall of the B circular hole through a bearing. One end of the B rotating rod is fixedly connected to the A limiting rotating plate.
[0007] Optionally, the top of the cylinder A is provided with a circular hole C, and a water outlet pipe is fixedly connected to the inner wall of the circular hole C, which serves to fix the water outlet pipe.
[0008] Optionally, one end of the A-shaped tube is connected to the B-shaped cylinder, the bottom of the B-shaped cylinder is connected to the B-shaped tube, a C-shaped connecting groove block is fixedly connected to one side of the B-shaped tube, a D-shaped hole is opened on one side of the B-shaped tube and the C-shaped connecting groove block, a C-shaped rotating rod is rotatably connected to the inner wall of the D-shaped hole, a B-shaped rotating block is fixedly connected to one end of the C-shaped rotating rod, and a B-shaped limiting rotating plate is fixedly connected to the other end of the C-shaped rotating rod, so that the C-shaped rotating rod can be rotated through the D-shaped hole.
[0009] Optionally, a D connecting groove block is fixedly connected to the other side of the B-shaped tube. An E-shaped hole is opened on the other side of the B-shaped tube and the D connecting groove block. A D rotating rod is installed on the inner wall of the E-shaped hole through a bearing. One end of the D rotating rod is fixedly connected to the B limiting rotating plate. A C-shaped cylinder is connected through the bottom of the B-shaped tube. The B-shaped tube serves to fix the D connecting groove block.
[0010] Optionally, an E-shaped hole is provided on one side of the surfaces of cylinders A, B, and C. A drain pipe is fixedly connected to the inner wall of the E-shaped hole, and a round cover is movably connected to the inner wall of the drain pipe. The E-shaped hole serves to fix the drain pipe in place.
[0011] Optionally, an arc groove is formed on the other side of the surfaces of cylinders A, B, and C. An observation window is fixedly connected to the inner wall of the arc groove, and a scale A is fixedly connected to the surface of the observation window. A scale B is fixedly connected to the surface of the water pump pipe. The arc groove serves to fix the observation window.
[0012] (III) Beneficial Effects This utility model provides a multi-depth water environment stratification sampler, which has the following beneficial effects: 1. This multi-depth water environment stratification sampler, through the setup of a sinking component, water pump, outlet pipe, suction pipe, float, counterweight lead block, B cylinder, B pipe, and C cylinder, allows operators to place the suction pipe into water at different depths. First, the water pump is turned on, and water is drawn through the suction pipe at the input end. The counterweight lead block pulls the sampler downward due to gravity. The float provides upward buoyancy throughout the sinking process, forming a dynamic balance with the weight of the counterweight lead block, ensuring that the sampler sinks at a uniform speed. By observing the scale on the B end of the suction pipe, the sinking depth of the sampler can be determined in real time. The outlet pipe at the output end discharges water into the A cylinder. This achieves the effect of ensuring that the sampler sinks to the target depth at a uniform speed, accurately controlling the sinking position, and collecting the extracted water into the A cylinder. This allows for precise control of the sampler reaching the target water layer, meeting the positioning requirements of multi-depth stratification sampling, and preventing the sampler from sinking too quickly due to excessive gravity or floating due to excessive buoyancy, ensuring uniform sinking speed and reducing the impact of water disturbance on sampling.
[0013] 2. This multi-depth water environment stratification sampler, through the setup of stratification control components, A connecting trough block, A rotating rod, A rotating block, A limiting rotating plate, and B rotating rod, allows the operator to first lower the sampler with the sinking component to the first target water layer. The sampled water is then pumped into cylinder C. When the scale on observation window A reaches a certain sampling volume, rotating block B rotates, causing rotating rods C and D to rotate, thus limiting rotating plate B within cylinder B. The sampler continues to sink to the next target depth, pumping the water into cylinder B. Rotating rotating block A... The block drives the A and B rotating rods to rotate, causing the A limiting plate to be confined inside the A circular tube. Finally, the sampler continues to sink to the last target depth, pumping the collected water into the A circular tube. This achieves the effect of collecting water samples in layers at different target depths into the C, B, and A circular tubes, realizing multi-depth water body stratified sampling and isolated storage. This enables sequential sampling of vertical water layers, avoids mixing of water samples from different depths during the collection process, and achieves independent collection and storage of water samples from different water layers, avoiding cross-contamination. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting component structure of this utility model; Figure 3 This is a schematic diagram of the layered control component structure of this utility model; Figure 4 This is a schematic diagram of the sinking component structure of this utility model.
[0015] Figure Labels 1. Connecting components; 101. Cylinder A; 102. Pipe A; 2. Submerged assembly; 201. Water pump; 202. Outlet pipe; 203. Pumping pipe; 204. Float; 205. Counterweight; 3. Layered control components; 301, A connecting groove block; 302, A rotating rod; 303, A rotating block; 304, A limiting rotating plate; 305, B rotating rod; 306, B cylinder; 307, B round tube; 308, C cylinder. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Please see Figures 1 to 4 This utility model provides a technical solution: a multi-depth water environment stratification sampler, comprising: a connecting component 1, a sinking component 2, and a stratification control component 3; The connecting component 1 consists of a cylindrical A 101 and a circular A tube 102, with the circular A tube 102 being connected through the bottom of the cylindrical A 101. The sinking assembly 2 consists of a water pump 201 and a counterweight 205 located at the top of cylinder A 101. The output end of the water pump 201 is fixedly connected to an outlet pipe 202, and the input end of the water pump 201 is fixedly connected to a suction pipe 203. A float 204 is fixedly connected to the middle of the surface of the suction pipe 203, and a counterweight 205 is fixedly connected to the bottom of the surface of the suction pipe 203. Through the arrangement of the sinking assembly 2, water pump 201, outlet pipe 202, suction pipe 203, float 204, counterweight 205, cylinder B 306, pipe B 307, and cylinder C 308, the operator lowers the suction pipe 203 into water at different depths. First, the water pump 201 is turned on, and water is drawn through the suction pipe 203 at the input end. The counterweight 205... 05 Due to gravity, the sampler moves downward. The float 204 provides upward buoyancy during the sinking process, forming a dynamic balance with the weight of the counterweight 205, ensuring that the sampler sinks at a uniform speed. By observing the B scale on the water pumping pipe 203, the sinking depth of the sampler can be judged in real time. The water outlet pipe 202 at the output end discharges water into the A cylinder 101. This achieves the effect of making the sampler sink to the target depth at a uniform speed, accurately controlling the sinking position, and collecting the extracted water into the A cylinder 101. This allows for precise control of the sampler to reach the target water layer, meeting the positioning requirements of multi-depth stratified sampling. It also avoids the sampler sinking too quickly due to excessive gravity or floating due to excessive buoyancy, ensuring a uniform sinking speed and reducing the impact of water disturbance on sampling. The layered control component 3 consists of an A connecting groove block 301 and a B rotating rod 305 disposed on one side of the A circular tube 102. An A circular hole is formed on one side of the A circular tube 102 and the A connecting groove block 301. The A rotating rod 302 is rotatably connected to the inner wall of the A circular hole. One end of the A rotating rod 302 is fixedly connected to an A rotating block 303, and the other end of the A rotating rod 302 is fixedly connected to an A limiting rotating plate 304. The B connecting groove block is fixedly connected to the other side of the A circular tube 102. A circular hole B is provided on the other side of the circular tube 102 and the B connecting groove block. A rotating rod B 305 is installed on the inner wall of the B circular hole via a bearing. One end of the rotating rod B 305 is fixedly connected to the limiting rotating plate A 304. Through the arrangement of the layered control component 3, the A connecting groove block 301, the A rotating rod 302, the A rotating block 303, the A limiting rotating plate A 304, and the B rotating rod 305, the staff first lowers the sampler with the sinking component 2 to the first target water layer and extracts the water. When the sampled water reaches a certain amount in cylinder C 308, the scale on observation window A is used to sample the water. Then, rotating block B rotates cylinder C and cylinder D, causing the limiting plate B to be positioned within cylinder B 307. The sampler continues to descend to the next target depth, pumping the sampled water into cylinder B 306. Rotating block A 303 rotates cylinder A 302 and cylinder B 305, causing the limiting plate A 304 to be positioned within cylinder A 102. Finally, the sampler continues to descend to the last target depth, pumping the sampled water into cylinder A 101. This process allows the sampler to collect water samples in layers at different target depths, into cylinder C 308, cylinder B 306, and cylinder A 101, achieving multi-depth water layer sampling and isolated storage. This enables sequential sampling of vertical water layers, preventing mixing of water samples from different depths during collection, and thus achieving independent collection and storage of water samples from different layers, avoiding cross-contamination. A circular hole C is provided at the top of cylinder A 101. A water outlet pipe 202 is fixedly connected to the inner wall of the circular hole C. The circular hole C serves to fix the water outlet pipe 202. A cylindrical tube 102 is connected to a cylindrical tube 306 at one end. A cylindrical tube 307 is connected to the bottom of the cylindrical tube 306. A connecting groove block C is fixedly connected to one side of the cylindrical tube 307. A circular hole D is opened on one side of the cylindrical tube 307 and the connecting groove block C. A rotating rod C is rotatably connected to the inner wall of the circular hole D. A rotating block B is fixedly connected to one end of the rotating rod C. A limiting rotating plate B is fixedly connected to the other end of the rotating rod C. The circular hole D is used to rotate the rotating rod C. A connecting slot D is fixedly connected to the other side of the B-shaped tube 307. An E-shaped hole is opened on the other side of the B-shaped tube 307 and the D-shaped connecting slot. A D-shaped rotating rod is installed on the inner wall of the E-shaped hole through a bearing. One end of the D-shaped rotating rod is fixedly connected to the B-limiting rotating plate. A C-shaped cylinder 308 is connected through the bottom of the B-shaped tube 307. The B-shaped tube 307 serves to fix the D-shaped connecting slot. A circular hole E is provided on one side of the surface of cylinder A 101, cylinder B 306 and cylinder C 308. A drain pipe is fixedly connected to the inner wall of the circular hole E, and a circular cover is movably connected to the inner wall of the drain pipe. The circular hole E serves to fix the drain pipe. A circular arc groove is provided on the other side of the surface of cylinder A 101, cylinder B 306 and cylinder C 308. An observation window is fixedly connected to the inner wall of the circular arc groove. A scale A is fixedly connected to the surface of the observation window, and a scale B is fixedly connected to the surface of the water pump pipe 203. The circular arc groove serves to fix the observation window.
[0018] In this invention, the working steps of the device are as follows: First step: The staff puts the water pump 203 into water at different depths. First, the water pump 201 is turned on and water is drawn through the water pump 203 at the input end. The counterweight 205 pulls the sampler downward due to gravity. The float 204 provides upward buoyancy during the sinking process, forming a dynamic balance with the gravity of the counterweight 205 to ensure that the sampler sinks at a uniform speed. By observing the B scale on the water pump 203, the sinking depth of the sampler is judged in real time. The water outlet 202 at the output end discharges the water into the A cylinder 101. The second step: The staff first lowers the sampler with the sinking component 2 to the first target water layer, pumps the extracted water into cylinder C 308, and observes that when the scale A on the observation window has reached a certain amount of water, the staff rotates the B rotating block to drive the C rotating rod and the D rotating rod to rotate, so that the B limiting plate is limited in the B circular tube 307. The sampler continues to sink to the next target depth, pumps the extracted water into cylinder B 306, rotates the A rotating block 303 to drive the A rotating rod 302 and the B rotating rod 305 to rotate, so that the A limiting plate 304 is limited in the A circular tube 102. Finally, the sampler continues to sink to the last target depth, pumps the extracted water into cylinder A 101.
[0019] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming. All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.
[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-depth water environment stratification sampler, including: The connecting component (1), the sinking component (2), and the layered control component (3) are characterized in that: The connecting component (1) is composed of a cylindrical A (101) and a circular A (102), with the circular A (102) being connected through to the bottom of the cylindrical A (101). The sinking assembly (2) consists of a water pump (201) and a counterweight (205) set at the top of cylinder A (101). The output end of the water pump (201) is fixedly connected to a water outlet pipe (202), the input end of the water pump (201) is fixedly connected to a water pump pipe (203), a float (204) is fixedly connected to the middle of the surface of the water pump pipe (203), and a counterweight (205) is fixedly connected to the bottom of the surface of the water pump pipe (203). The layered control component (3) consists of an A connecting groove block (301) and a B rotating rod (305) disposed on one side of the A circular tube (102). An A circular hole is opened on one side of the A circular tube (102) and the A connecting groove block (301). An A rotating rod (302) is rotatably connected to the inner wall of the A circular hole. An A rotating block (303) is fixedly connected to one end of the A rotating rod (302). An A limiting rotating plate (304) is fixedly connected to the other end of the A circular tube (102). A B connecting groove block is fixedly connected to the other side of the A circular tube (102). A B circular hole is opened on the other side of the A circular tube (102) and the B connecting groove block. A B rotating rod (305) is installed on the inner wall of the B circular hole through a bearing. One end of the B rotating rod (305) is fixedly connected to the A limiting rotating plate (304).
2. The multi-depth water environment stratification sampler according to claim 1, characterized in that: The top of the cylinder A (101) is provided with a circular hole C, and a water outlet pipe (202) is fixedly connected to the inner wall of the circular hole C.
3. The multi-depth water environment stratification sampler according to claim 1, characterized in that: One end of the A-tube (102) is connected to the B-cylinder (306), and the bottom of the B-cylinder (306) is connected to the B-tube (307). A C-connecting groove block is fixedly connected to one side of the B-tube (307). A D-hole is opened on one side of the B-tube (307) and the C-connecting groove block. A C-rotating rod is rotatably connected to the inner wall of the D-hole. A B-rotating block is fixedly connected to one end of the C-rotating rod, and a B-limiting rotating plate is fixedly connected to the other end of the C-rotating rod.
4. The multi-depth water environment stratification sampler according to claim 3, characterized in that: A connecting groove block D is fixedly connected to the other side of the B-shaped tube (307). An E-shaped hole is opened on the other side of the B-shaped tube (307) and the D-shaped connecting groove block. A rotating rod D is installed on the inner wall of the E-shaped hole through a bearing. One end of the rotating rod D is fixedly connected to the B-limiting rotating plate. A cylinder C (308) is connected through the bottom of the B-shaped tube (307).
5. The multi-depth water environment stratification sampler according to claim 1, characterized in that: An E-hole is provided on one side of the surface of cylinder A (101), cylinder B (306) and cylinder C (308). A drain pipe is fixedly connected to the inner wall of the E-hole, and a round cover is movably connected to the inner wall of the drain pipe.
6. The multi-depth water environment stratification sampler according to claim 1, characterized in that: A circular arc groove is provided on the other side of the surface of cylinder A (101), cylinder B (306) and cylinder C (308). An observation window is fixedly connected to the inner wall of the circular arc groove. A scale A is fixedly connected to the surface of the observation window. A scale B is fixedly connected to the surface of the water pump (203).