Water sampler suitable for water body with relatively high silt content

Abstract

The utility model discloses a water sampler suitable for a water body with relatively high silt content. The water sampler comprises a cylindrical sampling barrel, a liquid inlet bottom cover and an upper cover, a liquid inlet bottom cover and an upper cover are arranged at the upper end and the lower end of the cylindrical sampling barrel respectively, a limiting ring of a conical structure is arranged on the lower portion of the inner side of the cylindrical sampling barrel, an annular hollow support is arranged under the limiting ring, the inner wall of the hollow support is connected with a conical precipitation filter cone, and a precipitation outlet is formed in the bottom of the conical precipitation filter cone. The side wall of the cylindrical sampling barrel is provided with a clear liquid outlet hole, the clear liquid outlet hole is located above the limiting ring, the middle of the liquid inlet bottom cover is provided with a liquid inlet, the liquid inlet is movably connected with a sealing cover plate, when the water sampler is used for sampling water, the sealing cover plate is separated from the liquid inlet, and after the water sampler is used for sampling water, the sealing cover plate seals the liquid inlet under the action of water pressure. According to the sampler, a liquid inlet and outlet structure is ingeniously designed, sampling water can be naturally filtered and precipitated, layering is achieved, the quality of the sampling water is improved, and the sampling standard is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of water ecological monitoring, in particular to a water sampler suitable for water bodies with high sediment content. Background Art

[0002] The Yellow River is China's second-largest river and boasts abundant water resources. Monitoring its hydrological data provides insights into the water resources in the basin and provides a basis for water resource protection and rational utilization, including ensuring their proper allocation and preventing overexploitation and pollution.

[0003] Monitoring the aquatic ecology of the Yellow River basin is crucial. This includes water quality monitoring and plankton monitoring. Water sampling is necessary for ecological monitoring of the Yellow River. Because the water is turbid and has a high sediment content, the sediment must be removed after sampling. Otherwise, the sediment content of the collected water samples will be too high, affecting the accuracy of water quality and plankton testing.

[0004] At present, most water samplers are only designed for water sampling function. When sampling water in waters with high sediment content, they cannot effectively remove sediment. Therefore, it is necessary to design a water sampler that is suitable for collecting water in waters with high sediment content so as to remove sediment efficiently and quickly. Utility Model Content

[0005] In order to solve the defects and shortcomings of the existing technology, the purpose of the utility model is to provide a water sampler with simple structure, reasonable design and easy use, which is suitable for water bodies with high sediment content. It cleverly designs the liquid inlet and outlet structure of the sampler, which can naturally filter and precipitate the sampled water, achieve stratification, and improve the quality of the sampled water to meet the sampling standards.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A water sampler suitable for water bodies with high sediment content, which comprises a cylindrical sampling tube, a liquid inlet bottom cover, and an upper cover; the upper and lower ends of the cylindrical sampling tube are respectively provided with a liquid inlet bottom cover and an upper cover, wherein the lower inner side of the cylindrical sampling tube is provided with a limiting ring with a conical structure, and a ring-shaped hollow bracket is provided directly below the limiting ring. The inner wall of the hollow bracket is connected to a conical sedimentation filter bucket, and the bottom of the conical sedimentation filter bucket is provided with a sedimentation outlet, and a clear liquid outlet hole is provided on the side wall of the cylindrical sampling tube, and the clear liquid outlet hole is located above the limiting ring. A liquid inlet is provided in the middle of the liquid inlet bottom cover, and a sealing plate is movably connected to the liquid inlet. When the water sampler is sampling water, the sealing plate is separated from the liquid inlet. When the water sampler has finished sampling water, the sealing plate seals the liquid inlet under the action of water pressure.

[0008] There are evenly distributed limit columns around the liquid inlet, the limit columns are L-shaped, and the corners of each limit column are facing the center of the cylindrical sampling tube. The sealing plate is limited by the top of each limit column. A rotating ring is provided on the outside of the limit column, and the rotating ring is threadedly connected to the bottom of the inner wall of the cylindrical sampling tube.

[0009] A sedimentation filter frame is provided between the limiting ring and the conical sedimentation filter bucket. A thin sheet sealing ring is provided on the outside of the sedimentation filter frame. The sedimentation filter frame is sealed and connected to the cylindrical sampling tube through the thin sheet sealing ring.

[0010] A fixing bracket is screwed inside the reserved hole in the middle of the upper cover, a spring rod is inserted into the lower end of the fixing bracket, the upper end of the spring rod is connected to the cover plate at the upper end of the reserved hole, and a handle is connected to the outer side of the upper end of the upper cover, and a second screw-on ring is connected to the outer side of the lower end of the upper cover.

[0011] The sedimentation filter frame is affected by the flow direction of the water body and moves up and down between the limiting ring and the conical sedimentation filter bucket to achieve free switching between liquid inlet and sedimentation filtration.

[0012] The outer diameter of the sedimentation filter frame matches the inner diameter of the cylindrical sampling tube.

[0013] A coarse-pore filter screen is arranged in the middle of the sedimentation filter frame.

[0014] After adopting the above structure, the beneficial effects of the utility model are:

[0015] Through its ingenious structural design, the device can meet the needs of water sampling in turbid waters and waters with high sediment content. It can achieve self-sedimentation and removal of sediment, improve the quality of sampled water, and thus improve the water quality of sampled water and the accuracy of plankton detection therein. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention is described in detail through the following specific implementations and drawings.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the sedimentation filter frame 8 of the present utility model;

[0019] Figure 3 This is a schematic structural diagram of the liquid inlet bottom cover 2 of the present utility model;

[0020] Figure 4 This is a schematic structural diagram of the upper cover 3 of the present utility model;

[0021] Figure 5 This is a schematic diagram of the liquid inlet state of the utility model;

[0022] Figure 6 This is a schematic diagram of the filtration and sedimentation state of the utility model;

[0023] Explanation of the accompanying symbols: cylindrical sampling cylinder 1, liquid inlet bottom cover 2, upper cover 3, hollow bracket 4, conical sedimentation filter 5, sedimentation outlet 6, limiting ring, sedimentation filter frame 8, supernatant outlet hole 9, screw-on ring 1 21, limiting column 22, sealing plate 23, liquid inlet 24, screw-on ring 2 31, fixed bracket 32, spring rod 33, cover plate 34, handle 35, coarse-pore filter 81, thin-film sealing ring 82. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments illustrated in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0025] It should also be noted here that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solution according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0026] See Figures 1-6 As shown, this specific embodiment adopts the following technical solution: a water sampler suitable for water bodies with high sediment content, comprising a cylindrical sampling tube 1, a liquid inlet bottom cover 2, and an upper cover 3. The upper and lower ends of the cylindrical sampling tube 1 are respectively threadedly connected to the liquid inlet bottom cover 2 and the upper cover 3. A conical retaining ring 7 is provided on the lower inner portion of the cylindrical sampling tube 1. An annular hollow bracket 4 is provided directly below the retaining ring 7. A conical sedimentation filter 5 is fixedly connected to the inner side of the hollow bracket 4. A sedimentation outlet 6 is provided at the bottom of the conical sedimentation filter 5. A clear liquid outlet 9 is provided on the sidewall of the cylindrical sampling tube 1, located above the retaining ring 7.

[0027] A sedimentation filter rack 8 is arranged between the limiting ring 7 and the conical sedimentation filter bucket 5, and a circle of thin-film sealing ring 82 is arranged on the outside of the sedimentation filter rack 8; the thin-film sealing ring 82 serves as a sealing structure to ensure that the sedimentation filter rack 8 and the cylindrical sampling tube 1 are sealed while also being able to move up and down with the water flow.

[0028] A liquid inlet 24 is provided in the middle of the liquid inlet bottom cover 2, and uniformly distributed limiting posts 22 are provided around the liquid inlet. The limiting posts 22 are L-shaped, and the corners of each limiting post 22 face the center of the cylindrical sampling tube 1. The sealing plate 23 is limited by the top of each limiting post 22. A rotating ring 21 is provided on the outside of the limiting post 22, and the rotating ring 21 is threadedly connected to the bottom of the inner wall of the cylindrical sampling tube 1. When the sampling device is placed in water, the sealing plate 23 is lifted up, and water enters from the liquid inlet 24 and flows upward from the gap between the sealing plate 23 and the limiting posts 22. During the lifting process, the sealing plate 23 is pressed on the surface of the liquid inlet 24 by the internal water pressure to seal it.

[0029] A fixing bracket 32 ​​is screwed into the reserved hole in the middle of the upper cover 3. A spring rod 33 is inserted into the lower end of the fixing bracket 32. The upper end of the spring rod 33 is connected to the cover plate 34 at the upper end of the reserved hole. A handle 35 is connected to the outer side of the upper end of the upper cover 3. A second screw ring 31 is connected to the outer side of the lower end of the upper cover 3. Water enters the interior of the cylindrical sampling tube 1 from the bottom, lifting the cover plate 34 and allowing water to flow freely from the bottom to the top to achieve live water sampling. During the lifting process, the upper cover 3 automatically closes due to the water pressure and the action of the spring rod 33.

[0030] In addition, the sedimentation filter frame 8 is affected by the direction of water flow and moves up and down between the retaining ring 7 and the conical sedimentation filter hopper 5, enabling free switching between liquid inlet and sedimentation filtration. The outer diameter of the sedimentation filter frame 8 is consistent with the inner diameter of the cylindrical sampling tube 1. During the water inlet phase, water flows upward from the outer side of the conical sedimentation filter hopper 5, lifting the sedimentation filter frame 8. The water also flows upward through the coarse-porous filter screen 81 in the center of the sedimentation filter frame 8, filtering out larger impurities such as sand and gravel. During the upward sedimentation phase, the sedimentation filter frame 8, under the pressure of water and its own weight, covers the upper end of the conical sedimentation filter hopper 5 and seals the hollow bracket 4 outside the upper end of the conical sedimentation filter hopper 5. As natural sedimentation occurs, sediment passes through the coarse-porous filter screen 81 in the center of the sedimentation filter frame 8 and falls into the interior of the conical sedimentation filter hopper 5. Suspended matter is suspended at the upper end of the sedimentation filter frame 8, and the supernatant is collected through the supernatant outlet 9. Finally, the liquid inlet bottom cover 2 is removed, and the sediment is discharged from the cylindrical sampling tube 1.

Claims

1. A water sampler suitable for water bodies with high sediment content, characterized by: It comprises a cylindrical sampling tube, a liquid inlet bottom cover and an upper cover; the upper and lower ends of the cylindrical sampling tube are respectively provided with a liquid inlet bottom cover and an upper cover, wherein a conical limiting ring is provided on the lower inner side of the cylindrical sampling tube, and an annular hollow bracket is provided directly below the limiting ring. The inner wall of the hollow bracket is connected with a conical sedimentation filter bucket, and the bottom of the conical sedimentation filter bucket is provided with a sedimentation outlet. A clear liquid outlet hole is provided on the side wall of the cylindrical sampling tube, and the clear liquid outlet hole is located above the limiting ring. A liquid inlet is provided in the middle of the liquid inlet bottom cover, and a sealing plate is movably connected to the liquid inlet. When the water sampler collects water, the sealing plate is separated from the liquid inlet. When the water sampler finishes collecting water, the sealing plate seals the liquid inlet under the action of water pressure.

2. The water sampler suitable for water bodies with high sediment content according to claim 1, characterized in that: There are evenly distributed limit columns around the liquid inlet, the limit columns are L-shaped, and the corners of each limit column are facing the center of the cylindrical sampling tube. The sealing plate is limited by the top of each limit column. A rotating ring is provided on the outside of the limit column, and the rotating ring is threadedly connected to the bottom of the inner wall of the cylindrical sampling tube.

3. The water sampler suitable for water bodies with high sediment content according to claim 1, characterized in that: A sedimentation filter frame is provided between the limiting ring and the conical sedimentation filter bucket. A thin sheet sealing ring is provided on the outside of the sedimentation filter frame. The sedimentation filter frame is sealed and connected to the cylindrical sampling tube through the thin sheet sealing ring.

4. The water sampler suitable for water bodies with high sediment content according to claim 3, characterized in that: The sedimentation filter frame is affected by the flow direction of the water body and moves up and down between the limiting ring and the conical sedimentation filter bucket to achieve free switching between liquid inlet and sedimentation filtration.

5. The water sampler suitable for water bodies with high sediment content according to claim 4, characterized in that: The outer diameter of the sedimentation filter frame matches the inner diameter of the cylindrical sampling tube.

6. The water sampler suitable for water bodies with high sediment content according to claim 3, characterized in that: A coarse-pore filter screen is arranged in the middle of the sedimentation filter frame.

7. The water sampler suitable for water bodies with high sediment content according to claim 1, characterized in that: A fixing bracket is screwed inside the reserved hole in the middle of the upper cover, a spring rod is inserted into the lower end of the fixing bracket, the upper end of the spring rod is connected to the cover plate at the upper end of the reserved hole, and a handle is connected to the outer side of the upper end of the upper cover, and a second screw-on ring is connected to the outer side of the lower end of the upper cover.

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