A sampling device for detecting water body in water environment
By designing a water environment water body detection device that automatically seals the sampling bottle opening using a support frame and piston shell combined with air buoyancy, the problem of cumbersome operation of traditional devices is solved, and sampling efficiency and convenience are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ENVIRONMENTAL SCI & TECH RES INST CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional water environment monitoring devices are cumbersome to operate. After sampling, the water must be carefully poured into the sampling bottle, which increases the complexity and time consumption of the operation and affects the sampling efficiency.
A sampling device for water environment testing was designed, comprising a top plate, a support frame, a float, a bottom plate, and a piston shell. Multiple sampling bottles are fixed by the support frame. By utilizing the cooperation between the piston shell and the bottle stopper, combined with air buoyancy, the sampling bottle openings are automatically sealed, simplifying the sampling and recycling process.
It enables simultaneous sampling from multiple sampling bottles, saves effort in sealing the bottle openings, improves sampling efficiency and ease of operation, and reduces manual operation steps.
Smart Images

Figure CN224382892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sampling device technology, and in particular to a sampling device for water environment water body detection. Background Technology
[0002] Water environment monitoring is a crucial activity for the comprehensive assessment and monitoring of water quality. It involves sampling and analyzing physical, chemical, and biological indicators in water bodies, such as pH, dissolved oxygen, heavy metal content, and microbial count, to accurately determine the pollution status and ecological health level of the water body. This process not only helps to promptly identify water pollution problems and provide a scientific basis for pollution control, but also evaluates the effectiveness of the control measures and guides the rational utilization and protection of water resources.
[0003] Water sampling is a crucial step in conducting water environment monitoring. Traditional sampling devices have a rather cumbersome operating procedure: after collecting water samples at the designated location, the sampling personnel must carefully pour the collected water into a sampling bottle. This extra step not only increases the complexity of the operation but also consumes a lot of time and effort, thus adversely affecting the overall sampling efficiency. Based on this, this utility model is proposed. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sampling device for water environment water body detection that can overcome or at least partially solve the above problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A sampling device for water environment testing includes a top plate and a support frame connected above the top plate. Multiple sampling bottles are placed inside the support frame, and a float is connected to the top plate. A bottom plate is slidably connected to the top plate, and a piston push plate is provided on the bottom plate. A piston shell is fitted over the piston push plate, and a bottle stopper is provided on the piston shell. When the piston shell is filled with air, the piston shell and the bottle stopper move upward to block the mouth of the sampling bottle.
[0007] Preferably, the support frame is provided with multiple fixing rings, and a lifting ring is slidably connected to the support frame. The lifting ring is provided with multiple limiting rings, and the limiting rings and fixing rings together clamp and fix the sampling bottle.
[0008] Furthermore, a compression spring is connected between the base plate and the support frame, and an adjusting bolt is threadedly connected to the lifting ring, the adjusting bolt being rotatably connected to the support frame.
[0009] Preferably, a locking block is slidably connected to the top plate, and a limiting rod is provided on the bottom plate. The limiting rod has a snap-fit hole. When the locking block is inserted into the snap-fit hole, the piston shell blocks the mouth of the sampling bottle when there is no gas inside.
[0010] Furthermore, the top plate is provided with a limiting sleeve, a sliding block is slidably connected inside the limiting sleeve, a connecting rod is rotatably connected between the sliding block and the locking block, and a tension spring is connected between the sliding block and the top plate.
[0011] Furthermore, a pull rope is connected to the sliding block, and a counterweight is provided on the base plate. When the pull rope pulls the sliding block, the locking block disengages from the snap-fit hole.
[0012] Preferably, the piston housing is connected to an air pipe, and the other end of the air pipe is connected to a piston cylinder for injecting air into the piston housing.
[0013] Preferably, an elastic component is connected between the top plate and the support frame, and the elastic component includes a telescopic rod and a spring.
[0014] Compared with the prior art, the present invention provides a sampling device for water environment detection, which has the following beneficial effects:
[0015] 1. This water environment water body detection sampling device, by setting a support frame, fixing ring, lifting ring and limiting ring, can fix multiple sampling bottles at the same time, so that sampling can be carried out directly through the sampling bottle without having to pour the sampled water into the sampling bottle after sampling.
[0016] 2. This water environment water body testing sampling device, by setting a base plate, sliding shell and bottle stopper, can control the bottle stopper to seal the bottle mouth during sampling. At the same time, it can also utilize the buoyancy of air to make it easier for users to retrieve the device.
[0017] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model can sample water bodies simultaneously using multiple sampling bottles, and can utilize the buoyancy of air while sealing the bottle openings, making it easier for users to recover the device. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a sampling device for water body detection in the water environment proposed in this utility model;
[0019] Figure 2 This is a cross-sectional view of a sampling device for water environment detection proposed in this utility model;
[0020] Figure 3This utility model proposes a sampling device for water environment and water body detection. Figure 2 Enlarged structural diagram of section A;
[0021] Figure 4 This utility model proposes a sampling device for water environment and water body detection. Figure 2 Enlarged structural diagram of section B;
[0022] Figure 5 This is a schematic diagram of the support frame in a sampling device for water environment detection proposed in this utility model.
[0023] In the diagram: 1. Top plate; 11. Elastic component; 12. Support frame; 121. Fixing ring; 13. Sampling bottle; 14. Float; 15. Lifting ring; 151. Adjusting bolt; 152. Limiting ring; 2. Bottom plate; 21. Limiting rod; 211. Snap-fit hole; 22. Compression spring; 23. Counterweight; 3. Locking block; 31. Connecting rod; 32. Sliding block; 321. Pull rope; 33. Limiting sleeve; 34. Tension spring; 4. Piston shell; 41. Bottle stopper; 42. Piston push plate; 43. Gas tube; 44. Piston cylinder. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0026] Example 1: Refer to Figures 1-5 A sampling device for water environment detection includes a top plate 1 and a support frame 12 connected above the top plate 1. Multiple sampling bottles 13 are placed inside the support frame 12. A float ball 14 is connected to the top plate 1. A bottom plate 2 is slidably connected to the top plate 1. A piston push plate 42 is provided on the bottom plate 2. A piston shell 4 is fitted over the piston push plate 42. A bottle stopper 41 is provided on the piston shell 4. When the piston shell 4 is filled with air, the piston shell 4 and the bottle stopper 41 move upward to block the bottle opening of the sampling bottle 13.
[0027] In this utility model, the device is composed of a base plate 2 and a top plate 1. A support frame 12 is connected to the top plate 1, and multiple sampling bottles 13 can be fixedly mounted on the support frame 12. A piston shell 4 and a bottle stopper 41 are connected to the base plate 2. By sliding the base plate 2, the piston shell 4 and the bottle stopper 41 can be driven to block the bottle opening of the sampling bottle 13. After the device is submerged in water and the sample is collected, air can be filled into the piston shell 4 to move the piston shell 4 upward and block the bottle opening of the sampling bottle 13 again. The piston shell 4 can increase buoyancy after being filled with air, so that the user can save effort when recovering the device.
[0028] The buoy 14 is connected to the top plate 1 by a rope, and the length of the rope determines the depth at which the device sinks to collect water.
[0029] Example 2: Refer to Figures 1-5 Similar to Embodiment 1, but with a further improvement: the support frame 12 is provided with multiple fixing rings 121, a lifting ring 15 is slidably connected to the support frame 12, and the lifting ring 15 is provided with multiple limiting rings 152. The limiting rings 152 and the fixing rings 121 together clamp and fix the sampling bottle 13. A compression spring 22 is connected between the bottom plate 2 and the support frame 12. An adjusting bolt 151 is threadedly connected to the lifting ring 15, and the adjusting bolt 151 is rotatably connected to the support frame 12. A locking block 3 is slidably connected to the top plate 1, and a limiting rod 21 is provided on the bottom plate 2. The limiting rod 21 has a snap-fit hole 211. When the locking block 3 is inserted into the snap-fit hole 211, the piston shell 4 is airless inside. In the case of a sample bottle 13, the bottle opening is blocked. A limiting sleeve 33 is provided on the top plate 1. A sliding block 32 is slidably connected inside the limiting sleeve 33. A connecting rod 31 is rotatably connected between the sliding block 32 and the locking block 3. A tension spring 34 is connected between the sliding block 32 and the top plate 1. A pull rope 321 is connected to the sliding block 32. A counterweight 23 is provided on the bottom plate 2. When the pull rope 321 pulls the sliding block 32, the locking block 3 disengages from the snap-fit hole 211. An air pipe 43 is connected to the piston shell 4. The other end of the air pipe 43 is connected to a piston cylinder 44 for injecting air into the piston shell 4. An elastic component 11 is connected between the top plate 1 and the support frame 12. The elastic component 11 includes a telescopic rod and a spring.
[0030] In this utility model, the top and bottom ends of the support frame 12 are connected by multiple support rods. The user can take out the sampling bottle 13 through the gap between the support rods. The limiting ring 152 passes through the limiting rod 21 and is fixedly connected to the lifting ring 15. By rotating the adjusting bolt 151, the lifting ring 15 can be driven to rise and fall, thereby achieving the fixed limiting of the sampling bottle 13.
[0031] The sliding block 32 slides within the limiting sleeve 33, thereby driving the locking block 3 to slide on the top plate 1. Without external force, the tension spring 34 pulls the sliding block 32 downward, thereby pushing the locking block 3 into the snap-fit hole 211 to limit the bottom plate 2 and the limiting rod 21. When the user pulls the pull rope 321, the sliding block 32 slides upward under the action of the counterweight 23. The sliding block 32 pulls the locking block 3 out of the snap-fit hole 211 through the connecting rod 31 to release the limitation on the bottom plate 2. Under the action of the compression spring 22, the bottom plate 2 and the piston shell 4 are ejected, thereby causing the bottle stopper 41 to detach from the sampling bottle 13 to complete the sampling of the water.
[0032] The top of the limiting rod 21 is provided with an outwardly extending protrusion, which can limit the maximum distance that the compression spring 22 pushes the base plate 2 downward;
[0033] Piston housing 4 is connected to piston cylinder 44 via air tube 43. After sampling is completed, air can be injected between piston housing 4 and piston push plate 42 by pushing piston cylinder 44, which can push piston housing 4 to drive bottle stopper 41 to block the bottle mouth of sampling bottle 13 again. Piston cylinder 44 is equipped with a one-way valve, like an air pump, which can only inject air into piston housing 4 in one direction.
[0034] Air can be released from piston housing 4 by disconnecting air pipe 43 from piston cylinder 44. Air pipe 43 is a rubber hose and is connected to the air hole of piston cylinder 44 by interference fit.
[0035] When using the device, the user first places the sampling bottle 13 in the fixing ring 121 and rotates the adjusting bolt 151 to lower the lifting ring 15, which in turn moves the limiting ring 152 to fix the sampling bottle 13. Then, the user pushes the base plate 2 to make the locking block 3 engage in the locking hole 211. At this point, the device is in the following state: Figure 2 As shown, the stopper 41 on the piston shell 4 blocks the mouth of the sampling bottle 13. Then, the rope on the top plate 1 is connected to the float 14. The length of the rope corresponds to the sampling depth. After all operations are completed, the device can be put into the water. When the device sinks to the specified depth, the locking block 3 is released from the limit rod 21 by pulling the pull rope 321. The compression spring 22 pushes the bottom plate 2 downward, and the sampling bottle 13 separates from the stopper 41. Water in the water body automatically flows into the sampling bottle 13. After sampling is completed, air is injected into the piston shell 4 through the piston cylinder 44. The piston shell 4 is pushed up by the gas, thereby driving the stopper 41 to block the mouth of the sampling bottle 13. The device can then be pulled out of the water body to obtain the sampled water.
[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A sampling device for water environment detection, comprising a top plate (1), characterized in that, Also includes: A support frame (12) is connected above the top plate (1), and multiple sampling bottles (13) are placed inside the support frame (12). A float (14) is connected to the top plate (1). A bottom plate (2) is slidably connected to the top plate (1). A piston push plate (42) is provided on the bottom plate (2). A piston shell (4) is fitted over the piston push plate (42). A bottle stopper (41) is provided on the piston shell (4). When the piston shell (4) is filled with air, the piston shell (4) and the bottle stopper (41) move upward to block the mouth of the sampling bottle (13).
2. The sampling device for water environment detection according to claim 1, characterized in that, The support frame (12) is provided with multiple fixing rings (121), and a lifting ring (15) is slidably connected to the support frame (12). The lifting ring (15) is provided with multiple limiting rings (152), and the limiting rings (152) and the fixing rings (121) together clamp and fix the sampling bottle (13).
3. The sampling device for water environment detection according to claim 2, characterized in that, A compression spring (22) is connected between the base plate (2) and the support frame (12). An adjusting bolt (151) is threadedly connected to the lifting ring (15), and the adjusting bolt (151) is rotatably connected to the support frame (12).
4. A sampling device for water environment detection according to claim 1, characterized in that, A locking block (3) is slidably connected to the top plate (1), and a limiting rod (21) is provided on the bottom plate (2). A snap-fit hole (211) is provided on the limiting rod (21). When the locking block (3) is inserted into the snap-fit hole (211), the piston shell (4) blocks the mouth of the sampling bottle (13) when there is no gas inside.
5. A sampling device for water environment detection according to claim 4, characterized in that, The top plate (1) is provided with a limiting sleeve (33), and a sliding block (32) is slidably connected inside the limiting sleeve (33). A connecting rod (31) is rotatably connected between the sliding block (32) and the locking block (3), and a tension spring (34) is connected between the sliding block (32) and the top plate (1).
6. A sampling device for water environment detection according to claim 5, characterized in that, A pull rope (321) is connected to the sliding block (32), and a counterweight (23) is provided on the base plate (2). When the pull rope (321) pulls the sliding block (32), the locking block (3) disengages from the snap-fit hole (211).
7. A sampling device for water environment detection according to claim 1, characterized in that, The piston housing (4) is connected to an air pipe (43), and the other end of the air pipe (43) is connected to a piston cylinder (44) for injecting air into the piston housing (4).
8. A sampling device for water environment detection according to claim 1, characterized in that, An elastic component (11) is connected between the top plate (1) and the support frame (12), and the elastic component (11) includes a telescopic rod and a spring.