A deep water sampling device

Abstract

The invention discloses a deep water sampling device, comprising a water storage cylinder, the edge of the upper end of the water storage cylinder is provided with a hollow buoyancy ring, the edge of the lower end of the water storage cylinder is provided with an annular magnet, the upper and lower ends of the water storage cylinder are provided with collars, the two collars cooperate to slide and connect with a sliding shaft, the upper end of the sliding shaft is connected with a pull rope, and the lower end of the sliding shaft is connected with an annular iron ring matched with the annular magnet through a plurality of lower fixed strips; the upper and lower openings of the water storage cylinder are provided with an opener and a closeer, each opener and a closeer includes a plurality of fan-shaped blades combined into a sealed disc shape, the two ends of one side of each fan-shaped blade are respectively connected to the inner wall of the water storage cylinder and the outer wall of the corresponding collar, and the water storage cylinder is provided with a movable ring connected with the sliding shaft below the two openers and a pull shaft between each fan-shaped blade and the corresponding movable ring. The invention can accurately obtain water samples of the depth to be measured without mixing water of other water layers, and has a simple structure, a small volume and is easy to carry.

Description

Technical Field

[0001] The invention relates to the technical field of water quality detection, and in particular to a deep water sampling device. Background Art

[0002] The quality of water directly affects the reproduction and growth of aquatic organisms. Therefore, it is necessary to test the water quality, understand the habitat of aquatic organisms, and conduct quantitative and dynamic research on the overall status of water resource safety in the tested waters, which can reflect the basic status of the water resource system as a whole.

[0003] Since different aquatic organisms live in water at different depths, it is necessary to test the water quality at different depths. It is relatively simple to sample and test shallow water, but it is more difficult to sample and test deep water. Existing deep water sampling uses pumping sampling, but deep water sampling requires a high-power water pump, which is difficult to carry, and if the depth to be measured is deep, the water pipe is easily compressed by the water pressure and cannot be pumped out; there are also sampling devices that use sampling containers to fill water at the depth to be measured, but existing sampling devices are either complex in structure and costly, or difficult to operate, and are easily mixed with water that is not at the depth to be measured during the sampling process, which is inconvenient in actual operation. Summary of the invention

[0004] The purpose of the present invention is to provide a deep water sampling device which is simple and convenient to operate, can accurately obtain water samples of a depth to be measured without mixing water from other water layers, and has a simple structure, a small size and is easy to carry.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A deep-water sampling device comprises a water storage cylinder which is hollow and has openings at both ends, a hollow buoyancy ring is arranged at the edge of the upper end of the water storage cylinder, a ring-shaped magnet is arranged at the edge of the lower end of the water storage cylinder, a sleeve ring is arranged inside the hollow buoyancy ring and the lower part of the water storage cylinder, each sleeve ring is connected to the hollow buoyancy ring or the inner wall of the water storage cylinder through a plurality of connecting strips, two sleeve rings are slidably connected with a sliding shaft, a limiting head end which cannot pass through the upper sleeve end is arranged at the upper end of the sliding shaft, a pull rope is connected to the upper end of the limiting head end, and the lower end of the sliding shaft is connected to an annular iron ring which matches the ring-shaped magnet through a plurality of lower fixing strips;

[0007] The water storage cylinder is provided with openers and closeers at the upper and lower openings, each opener and closeer includes a plurality of fan-shaped blades combined into a sealed disc shape, and the two ends of one side of each fan-shaped blade are rotatably connected to the inner wall of the water storage cylinder and the outer wall of the corresponding sleeve ring respectively. The water storage cylinder is provided with movable rings below the two openers and closeers, the upper movable ring is connected to the sliding shaft through a plurality of upper fixing strips, and the lower movable ring is connected to the inner wall of the annular iron ring, and each movable ring is provided with a plurality of rotating holes which are distributed in a circle and correspond to the corresponding fan-shaped blades one by one, each rotating hole is rotatably connected to a first U-shaped rotating seat, and the side of each fan-shaped blade away from its rotation is rotatably connected to a second U-shaped rotating seat, and a pull shaft is rotatably connected between each first U-shaped rotating seat and the corresponding second U-shaped rotating seat.

[0008] By adopting the above technical solution, when deep-water sampling is carried out, the device is transported to the corresponding position of the lake by boat, and the pull rope is pulled on the boat. The annular iron ring is first driven by the sliding shaft to enter the water, and the water storage cylinder is allowed to enter the water after it reaches the limit head end. The annular iron ring moves downward away from the annular magnet. In this state, the sliding shaft pulls the two movable rings downward, and the movable rings pull the pulling shaft to move downward and rotate adaptively, pulling each fan-shaped blade downward to rotate vertically, so that the upper and lower opening ends of the water storage cylinder are exposed as much as possible. After entering the water, the device is driven by the annular iron ring to gradually sink. Due to the buoyancy of the hollow buoyancy ring, The water storage cylinder is kept sinking vertically at all times. During the sinking process, water enters from the lower end of the water storage cylinder and flows out from the upper end of the water storage cylinder. After reaching the depth to be measured, the pull rope is pulled upward to move the annular iron ring upward. When it is just pulled, since the water storage cylinder is still sinking, the upward moving annular iron ring will be attracted by the annular magnet to block the lower end of the water storage cylinder. The sliding shaft moves upward and the two movable rings move upward, pushing one end of the pull shaft upward, driving the fan-shaped blades to rotate upward, closing the opener and closeer, and sealing the water body at the depth to be measured in the water storage cylinder. The device can be directly pulled out of the water by the pull rope to complete the deep water sampling.

[0009] The present invention is further configured as follows: the annular magnet is an annular electromagnet, and a cable electrically connected to the annular magnet is arranged in the pull rope.

[0010] The present invention is further configured to include an electric rope reel, wherein the electric rope reel includes a bracket, a winding wheel arranged on the bracket, and a driving motor for driving the winding wheel to rotate.

[0011] The present invention is further configured as follows: the buoyancy of the hollow buoyancy ring is smaller than the gravity of the water storage cylinder plus the annular magnet.

[0012] The present invention is further configured as follows: a lower end of each fan-shaped blade away from the rotating side is provided with a snap-fitting edge facing outward, and a lower end of each fan-shaped blade on the rotating side is provided with a snap-fitting groove matching the snap-fitting edge.

[0013] The present invention is further configured as follows: a depth scale is provided on the outer side of the pull rope.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] First, after the device is put into the water, it can be operated by only a pull rope. After the device reaches the depth to be measured, the two ends of the water storage cylinder can be sealed by pulling it upward or by energizing the annular magnet to generate magnetism, ensuring that no water from other depths will mix in during the ascent process;

[0016] Secondly, in the process of sinking into the water, both ends of the water storage cylinder are opened to allow water to flow freely, which can ensure that after reaching the depth to be measured, the water at the depth to be measured can be accurately obtained;

[0017] Third, the present invention has a simple overall structure, a small volume, no complicated structural parts, is easy to carry, and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of Example 1;

[0019] Figure 2 It is a partial cross-sectional view used to show the internal structure of the water storage cylinder;

[0020] Figure 3 It is a schematic diagram of the overall structure of the fan-shaped blade;

[0021] Figure 4 It is mainly used to show the connection between the sliding shaft and the annular iron ring;

[0022] Figure 5 It is a schematic diagram of the overall structure of Example 2.

[0023] In the figure: 1, water storage cylinder; 11, sleeve ring; 12, connecting strip: 13, movable ring; 2, hollow buoyancy ring; 3, annular magnet; 4, sliding shaft; 41, limit head end; 42, lower fixing strip; 43, annular iron ring; 5, pull rope; 51, electric cable; 6, fan-shaped blades; 61, locking edge; 62, locking groove; 71, first U-shaped rotating seat; 72, second U-shaped rotating seat; 73, pull shaft; 8, electric rope reel; 81, bracket; 82, winding wheel; 83, driving motor. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0025] Example 1, reference Figure 1-4A deep-water sampling device comprises a water storage cylinder 1 which is hollow and has openings at both ends. A circle of hollow buoyancy ring 2 is arranged on the edge of the upper end of the water storage cylinder 1, and a circle of annular magnet 3 is arranged on the edge of the lower end of the water storage cylinder 1. The buoyancy of the hollow buoyancy ring 2 is less than the gravity of the water storage cylinder 1 plus the annular magnet 3, so that the upper end of the water storage cylinder 1 is always facing upward after entering the water, so that the water storage cylinder 1 will not float up by itself when it is not subject to weight downward. A ring 11 is provided inside the hollow buoyancy ring 2 and at the lower part of the water storage cylinder 1. Each ring 11 is connected to the inner wall of the hollow buoyancy ring 2 or the water storage cylinder 1 through three connecting strips 12. The two rings 11 are slidably connected to a sliding shaft 4. The upper end of the sliding shaft 4 is provided with a limiting head end 41 that cannot pass through the upper ring 11. The upper end of the limiting head end 41 is connected to a pull rope 5. The outer side of the pull rope 5 is provided with a depth scale. The lower end of the sliding shaft 4 is connected to a ring iron ring 43 that cooperates with the annular magnet 3 through four lower fixing strips 42.

[0026] An opener and closer is provided at the upper and lower openings of the water storage cylinder 1, and each opener and closer includes eight fan-shaped blades 6 combined into a sealed disc shape. The two ends of one side of each fan-shaped blade 6 are respectively rotatably connected to the inner wall of the water storage cylinder 1 and the outer wall of the corresponding collar 11. The shape of the end of each fan-shaped blade 6 is trimmed so that it will not be blocked by the collar 11 when rotating. The lower end of each fan-shaped blade 6 away from the rotating side is provided with a snap-fitting edge 61 outwardly, and the lower end of each rotating side of the fan-shaped blade 6 is provided with a snap-fitting groove 62 matched with the snap-fitting edge 61, so that the sealing disc formed by connecting the fan-shaped blades 6 has better sealing performance. A movable ring 13 is provided below the two openers and closers in the water storage cylinder 1. The upper movable ring 13 is connected to the sliding shaft 4 through three upper fixing strips (not shown), and the lower movable ring 13 is connected to the inner wall of the annular iron ring 43. Each movable ring 13 is provided with eight rotating holes (not shown) distributed in a circle and corresponding to the corresponding fan-shaped blades 6. Each rotating hole is rotatably connected to a first U-shaped rotating seat 71. Each fan-shaped blade 6 is rotatably connected to a side away from its rotation. A pulling shaft 73 is rotatably connected between each first U-shaped rotating seat 71 and the corresponding second U-shaped rotating seat 72. By driving the two movable rings 13 to move up and down at the same time through the sliding shaft 4, the fan-shaped blades 6 can be pulled to rotate through the pulling shaft 73 to achieve the purpose of closing or opening the opener and closer. When the annular iron ring 43 is connected to the annular magnet 3, the two openers and closers are just completely closed.

[0027] It also includes an electric rope reel 8, which includes a bracket 81, a winding wheel 82 arranged on the bracket 81, and a driving motor 83 for driving the winding wheel 82 to rotate. By winding one end of the pull rope 5 around the winding wheel 82, the pull rope 5 can be automatically pulled by the electric rope reel 8.

[0028] Usage: When taking deep-water sampling, the device is transported to the corresponding position of the lake by boat, and the pull rope 5 is pulled on the boat. The annular iron ring 43 is first driven by the sliding shaft 4 to enter the water, and the water storage cylinder 1 is allowed to enter the water after it reaches the limit head end 41. The annular iron ring 43 moves downward away from the annular magnet 3. In this state, the sliding shaft 4 pulls the two movable rings 13 downward, and the movable ring 13 pulls the pulling shaft 73 to move downward and rotates adaptively, pulling each fan-shaped blade 6 to rotate downward to vertical, so that the upper and lower opening ends of the water storage cylinder 1 are exposed as much as possible. After entering the water, the device is driven by the annular iron ring 43 to gradually sink. Due to the buoyancy of the hollow buoyancy ring 2, the water storage cylinder 1 always keeps sinking vertically. During the sinking process, the water body flows from the storage cylinder 1. The water enters from the lower end of the water cylinder 1 and flows out from the upper end of the water storage cylinder 1. After reaching the depth to be measured, the pull rope 5 is pulled upward to move the annular iron ring 43 upward. When it is just pulled, since the water storage cylinder 1 still keeps sinking, the upwardly moving annular iron ring 43 will be sucked by the annular magnet 3 to block the lower end of the water storage cylinder 1. The sliding shaft 4 moves upward and the two movable rings 13 move upward, pushing one end of the pull shaft 73 upward, driving the fan-shaped blades 6 to rotate upward, closing the opener and closer, and sealing the water body to be measured in the water storage cylinder 1. The device can be directly pulled out of the water by the pull rope 5 to complete the deep water sampling. The free end of the pull rope 5 can also be directly wound around the winding wheel 82 before use, and the electric rope reel 8 can be used to automatically loosen the rope or pull the rope 5.

[0029] Example 2, reference Figure 5 A deep water sampling device, the same technical features of Example 2 as Example 1 are not repeated here, and the different technical features are: the annular magnet 3 is an annular electromagnet, and a cable 51 electrically connected to the annular magnet 3 is arranged in the pull rope 5.

[0030] When in use, the device is put into water. Since the annular magnet 3 is not energized and has no magnetism, the device can be directly put into the water. Relying on gravity, the annular iron ring 43 drives the sliding shaft 4 to sink faster, and the two openers are pulled open to open the upper and lower ends of the water storage cylinder 1. After reaching the depth to be measured, the power is connected through the cable 51, so that the annular magnet 3 is energized to generate magnetism to attract the annular iron ring 43, so that the two openers are closed, and the water body at the depth to be measured is sealed in the water storage cylinder 1, and then it is pulled out of the water, which is simpler to operate.

[0031] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A deep water sampling device, comprising a water storage cylinder (1) which is hollow and has openings at both ends, characterized in that: The edge of the upper end of the water storage cylinder (1) is provided with a hollow buoyancy ring (2), the edge of the lower end of the water storage cylinder (1) is provided with an annular magnet (3), the interior of the hollow buoyancy ring (2) and the lower part of the water storage cylinder (1) are provided with a sleeve ring (11), each sleeve ring (11) is connected to the inner wall of the hollow buoyancy ring (2) or the water storage cylinder (1) through a plurality of connecting strips (12), the two sleeve rings (11) are slidably connected with a sliding shaft (4), the upper end of the sliding shaft (4) is provided with a limit head end (41) that cannot pass through the upper sleeve ring (11), the upper end of the limit head end (41) is connected to a pull rope (5), and the lower end of the sliding shaft (4) is connected to an annular iron ring (43) that cooperates with the annular magnet (3) through a plurality of lower fixing strips (42); The water storage cylinder (1) is provided with an opener and closeer at both the upper and lower openings, each of which comprises a plurality of fan-shaped blades (6) assembled into a sealed disc shape, the two ends of one side of each fan-shaped blade (6) being rotatably connected to the inner wall of the water storage cylinder (1) and the outer wall of the corresponding sleeve ring (11), the lower end of the side away from the rotation of each fan-shaped blade (6) being provided with a snap-fit ​​edge (61) facing outward, the lower end of the side of the rotation of each fan-shaped blade (6) being provided with a snap-fit ​​groove (62) matching the snap-fit ​​edge (61), and the water storage cylinder (1) being provided with a movable ring (13) below the two openers. The movable ring (13) at the top is connected to the sliding shaft (4) through a plurality of upper fixing strips, and the movable ring (13) at the bottom is connected to the inner wall of the annular iron ring (43). Each movable ring (13) is provided with a plurality of rotating holes distributed in a circumference and corresponding to the corresponding fan-shaped blades (6) one by one. Each rotating hole is rotatably connected to a first U-shaped rotating seat (71). A side of each fan-shaped blade (6) away from its rotation is rotatably connected to a second U-shaped rotating seat (72). A pull shaft (73) is rotatably connected between each first U-shaped rotating seat (71) and the corresponding second U-shaped rotating seat (72).

2. A deep water sampling device according to claim 1, characterized in that: The annular magnet (3) is an annular electromagnet, and a cable (51) electrically connected to the annular magnet (3) is arranged inside the pull rope (5).

3. A deep water sampling device according to any one of claims 1 or 2, characterized in that: It also includes an electric rope reel (8), the electric rope reel (8) comprising a bracket (81), a winding wheel (82) arranged on the bracket (81), and a driving motor (83) for driving the winding wheel (82) to rotate.

4. A deep water sampling device according to any one of claims 1 or 2, characterized in that: The buoyancy of the hollow buoyancy ring (2) is smaller than the gravity of the water storage cylinder (1) plus the annular magnet (3).

5. A deep water sampling device according to any one of claims 1 or 2, characterized in that: The outer side of the pull rope (5) is provided with a depth scale.

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