Columnar sample collecting device for sediment in offshore area
By designing a sediment columnar sample collection device for nearshore waters, the complex and heavy problems of traditional devices are solved, and efficient and convenient sediment collection and sample sealing are achieved, which is suitable for carbon sink accounting research.
Patent Information
- Application Number
- CN202421582177.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-07-05
AI Technical Summary
In the prior art, traditional bottom sediment columnar sample collection devices are complex and heavy, and require large scientific research ships to rely on, which are inconvenient to use and it is difficult to efficiently collect sediment in nearshore waters.
A columnar sample collection device for sediment in the nearshore waters is designed, including a sampling tube, a connecting assembly and an extension rod. The top of the sampling tube is equipped with a through hole and a gravity ball, the bottom cover is removable, equipped with a fan plate and a spring, forming a sediment sealing structure to improve sample sealing.
It realizes sediment collection with simple structure and convenient operation, can be easily carried to nearshore waters, improves the sealing of samples, avoids samples from being contaminated by the outside world, and has wide application prospects.
Smart Images
Figure CN222913174U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of sea area sediment collection, and particularly relates to a device for collecting columnar samples of sediments in the coastal sea area. Background Art
[0002] The marine ecosystem plays an indispensable role in the global ecological balance and carbon cycle. As part of maintaining the marine ecological balance, seaweed cultivation not only supports the human food supply but also plays an important role in the carbon cycle. During the seaweed cultivation process, seaweeds absorb carbon dioxide through photosynthesis and convert it into organic matter, which is then deposited on the seabed, thus playing an important role in the carbon cycle. However, cultivation activities may lead to the generation of bottom sediments such as seaweed residues and organic debris, which not only affect the seabed ecological environment but also may introduce uncertainties in carbon sink accounting.
[0003] In order to provide reliable data in carbon sink accounting, it is necessary to collect the bottom sediments of seaweed cultivation in the coastal sea area. In current seaweed cultivation carbon sink accounting projects, the collection is generally carried out through traditional methods for collecting columnar samples of bottom sediments. However, traditional devices for collecting columnar samples of bottom sediments are relatively complex and heavy, and rely on large scientific research vessels, making them inconvenient to use. Therefore, we provide a device for collecting columnar samples of sediments in the coastal sea area to solve some problems existing in the prior art. Summary of the Utility Model
[0004] The purpose of the utility model is to provide a device for collecting columnar samples of sediments in the coastal sea area to solve the above technical problems.
[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A device for collecting columnar samples of sediments in the coastal sea area, including a sampling tube, the sampling tube is connected to an extension rod through a connecting component; a through hole is penetrated through the top end of the sampling tube, a end cover is connected to the top end of the sampling tube, a plurality of water overflow holes are penetrated through the upper side wall of the end cover, a gravity ball is arranged above the through hole in the sampling tube, and the gravity ball is connected to the inner top wall of the sampling tube through an elastic member; the lower end opening of the sampling tube is detachably connected to a bottom cover, a plurality of sector plates are hinged at the opening of the bottom cover, a spring is connected between the upper surface of the sector plate and the inner side wall of the bottom cover, and a sediment closed structure is formed when the plurality of sector plates are closed, and a channel for facilitating the passage of sediments is formed in the middle when the plurality of sector plates are opened.
[0006] Further, a concave surface for cooperating with the gravity ball is provided around the through hole at the upper end of the sampling tube.
[0007] Further, a vertically downward inclined edge is provided at the bottom edge of the bottom cover.
[0008] Further, an end cap is threadedly connected to the bottom of the bottom cover.
[0009] Further, the connection assembly includes a rod body. The upper and lower ends of the rod body are respectively provided with abutting plates. One ends of the two abutting plates away from the rod body are respectively fixedly connected with extension rods. A plurality of hoop locking mechanisms are fixedly connected to the extension rods. During connection, the sampling tube and the extension rod respectively abut against the corresponding abutting plates.
[0010] Further, the rod body is a hollow structure.
[0011] Further, the hoop locking mechanism includes a fixed hoop and a rotating hoop. One end of the rotating hoop is rotatably connected to the fixed hoop through a rotating shaft, and the other end is connected to the fixed hoop through a locking bolt.
[0012] Further, a plurality of convex ribs are uniformly arranged on the inner surfaces of the fixed hoop and the rotating hoop, and the plurality of convex ribs are distributed along the axial direction of the inner surface of the hoop.
[0013] Further, an anti-slip layer is provided on the contact surface between the convex rib and the sampling tube.
[0014] Further, the upward movement angle of the sector plate is between 0° and 90°.
[0015] After adopting the above technical solution, compared with the existing technology, it has the following beneficial effects: simple structure, convenient operation, can be easily carried to the nearshore sea area for operation, at the same time improves the sealing of the sample, avoids the sample being affected by external pollution, and has a wide application prospect in the research of carbon sink accounting. Description of the Drawings
[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 is the structural schematic diagram of the present invention;
[0018] Figure 2 is Figure 1 the enlarged view of part A in
[0019] Figure 3 is the structural schematic diagram of the hoop locking mechanism 4 in the present invention;
[0020] Figure 4It is a partial structural schematic diagram when the sector plate 131 in the utility model is opened;
[0021] Figure 5 It is a partial structural schematic diagram when the end cover 133 is arranged in the utility model;
[0022] Figure 6 It is a partial structural schematic diagram when the sector plate 131 in the utility model is closed.
[0023] Explanation of reference numerals: 1, sampling tube; 11, through hole; 12, top cover; 121, overflow hole; 122, gravity ball; 123, elastic member; 124, concave surface; 13, bottom cover; 131, sector plate; 1311, channel; 132, spring; 133, end cover; 2, connection assembly; 21, rod body; 22, abutting plate; 23, extension rod; 3, extension rod; 4, hoop locking mechanism; 41, fixed hoop body; 42, rotating hoop body; 43, locking bolt; 44, rib; 441, anti-slip layer. Detailed implementation manners
[0024] In order to make the purpose, technical solutions and advantages of the utility model clearer, the following further details the utility model in combination with embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model.
[0025] Aiming at the problems existing in the prior art, the utility model provides a device for collecting sediment column samples in the nearshore sea area. The following makes a detailed description of the utility model with reference to the drawings.
[0026] Refer to Figures 1-6 As shown, the technical solution adopted in this specific implementation manner is: a device for collecting sediment column samples in the nearshore sea area, including a sampling tube 1, and the sampling tube 1 is connected to an extension rod 3 through a connection assembly 2. During actual use, extension rods 3 with different lengths can be replaced according to needs to facilitate the collection of sediments in sea areas at different depths.
[0027] A through hole 11 is formed through the top end of the sampling tube 1, and a top cover 12 is connected to the top end of the sampling tube 1. A plurality of water overflow holes 121 are formed through the upper side wall of the top cover 12. A gravity ball 122 is arranged above the through hole 11 in the sampling tube 1. The gravity ball 122 is connected to the inner top wall of the sampling tube 1 through an elastic member 123. The elastic member 123 can be a spring member or a telescopic rod member. Due to its own gravity and the negative pressure generated by the sampling tube 1, the gravity ball 122 can completely seal the upper opening of the through hole 11. An activity space for the up and down movement of the elastic member 123 is formed between the inner top wall of the top cover 12 and the upper end surface of the sampling tube 1. Preferably, a concave surface 124 matching with the lower part of the gravity ball 122 is formed around the through hole 11 at the upper end of the sampling tube 1. The formation of the concave surface 124 can prevent the elastic member 123 from deviating from the through hole 11, which is beneficial to the gravity ball 122 to form a seal for the through hole 11. Among them, the top cover 12 and the sampling tube 1 can be fixedly connected by threaded connection or welding.
[0028] During the downward collection process of the sampling tube 1, as water and sediment enter, the pressure inside the tube gradually increases. The gravity ball 122 is pressed upward and opened, and the water entering the sampling tube 1 is discharged from the water overflow holes 121. When taking it out upward, the gravity ball 122 returns downward under the action of gravity and water pressure, so that a pressure difference is formed at both ends of the sampling tube 1, which can prevent the sample in the sampling tube 1 from falling off.
[0029] The lower end opening of the sampling tube 1 is detachably connected to a bottom cover 13. A plurality of sector plates 131 are hingedly arranged at the opening of the bottom cover 13. A spring 132 is connected between the upper surface of the sector plate 131 and the inner side wall of the bottom cover 131. The upward movement angle of the sector plate 131 is 0°-90°. When the plurality of sector plates 131 are closed, a sediment sealing structure is formed. During the process of the sampling tube 1 collecting sediment downward, the plurality of sector plates 131 are pressed upward and opened. When the plurality of sector plates 131 are opened upward, a channel 1311 is formed. During the process of pressing the sampling tube 1 downward, water and sediment enter the inside of the sampling tube 1 from the channel 1311. During the process of taking out the sampling tube 1 upward, the sector plates 131 are closed downward under the action of atmospheric pressure and the spring 132 to improve the sealing performance at the bottom of the sampling tube 1 and prevent the sample from being overly oxidized. The bottom cover 13 and the lower end of the sampling tube 1 are connected by a threaded connection or a snap connection. When it is necessary to take out the sample in the sampling tube 1, the bottom cover 13 can be conveniently disassembled.
[0030] A vertically downward inclined edge (not marked in the figure) can be arranged at the bottom edge of the bottom cover 13, which can reduce the resistance when the sampling tube 1 takes samples downward.
[0031] Among them, a end cap 133 can be threadedly connected to the bottom of the bottom cover 13. After the sampling tube 1 is taken out after the sample collection is completed, the end cap can be screwed on in time to prevent the pressure difference in the sampling tube 1 from being broken, further improving the sealing performance of the sampling tube 1 and preventing the sample in the sampling tube 1 from oxidizing and affecting the subsequent test results.
[0032] Specifically, the connection assembly 2 includes a rod body 21. The upper and lower ends of the rod body 21 are respectively provided with abutting plates 22. One ends of the two abutting plates 22 away from the rod body 21 are respectively fixedly connected with extension rods 23, and a plurality of hoop locking mechanisms 4 are fixedly connected to the extension rods 23. When connecting, the sampling tube 1 and the extension rod 3 are respectively abutted against the corresponding abutting plates 22.
[0033] The rod body 21 is a hollow structure, which can reduce the overall weight of the device.
[0034] The hoop locking mechanism 4 includes a fixed hoop body 41 and a rotating hoop body 42. One end of the rotating hoop body 42 is rotatably connected to the fixed hoop body 41 through a rotating shaft, and the other end is connected to the fixed hoop body 41 through a locking bolt 43.
[0035] Preferably, a plurality of convex ribs 44 are evenly arranged on the inner surfaces of the fixed hoop body 41 and the rotating hoop body 42. The plurality of convex ribs 44 are distributed along the axial direction of the inner surface of the hoop. The convex ribs 44 can be dot-shaped, wavy, etc. When installing the sampling tube 1, the convex ribs 33 are used to lock the sampling tube 1, reducing the stress area and forming multiple stress areas to improve the fastening effect.
[0036] Furthermore, an anti-slip layer 441 is provided on the contact surface between the convex rib 44 and the sampling tube 1. The anti-slip layer 441 is made of silicone, rubber or other materials, and anti-slip lines are provided on the contact surface between the anti-slip layer 441 and the sampling tube 1. The connection friction with the sampling tube 1 is increased, thereby improving the connection firmness.
[0037] Specifically, the sampling tube 1 is a UPVC black tube body, a UPVC transparent tube body or an acrylic tube.
[0038] In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.
[0039] The above are only used to illustrate the technical solution of the present utility model rather than to limit it. Any other modifications or equivalent substitutions made by those of ordinary skill in the art to the technical solution of the present utility model shall be covered within the scope of the claims of the present utility model as long as they do not depart from the spirit and scope of the technical solution of the present utility model.
Claims
1. A device for collecting sediment column samples in coastal waters, characterized in that: It includes a sampling tube, and the sampling tube is connected to the extension rod through a connecting assembly; A through hole is formed at the top of the sampling tube, an end cap is connected to the top of the sampling tube, a plurality of overflow holes are formed on the upper side wall of the end cap, a gravity ball is arranged above the through hole of the sampling tube, and the gravity ball is connected to the inner top wall of the sampling tube through an elastic member; The lower end opening of the sampling tube is detachably connected to the bottom cover, and a plurality of fan-shaped plates are hingedly provided at the opening of the bottom cover. A spring is connected between the upper surface of the fan-shaped plate and the inner side wall of the bottom cover. When the plurality of fan-shaped plates are closed, a sediment sealing structure is formed. When the plurality of fan-shaped plates are opened, a channel is formed in the middle to facilitate the passage of sediment.
2. The device for collecting sediment column samples in coastal waters according to claim 1, characterized in that: The upper end of the sampling tube is located around the through hole and is provided with a concave surface matched with the gravity ball.
3. The device for collecting sediment column samples in coastal waters according to claim 1, characterized in that: The bottom edge of the bottom cover is provided with an inclined blade pointing vertically downward.
4. The device for collecting sediment column samples in coastal waters according to any one of claims 1 or 3, characterized in that: The bottom of the bottom cover is threadedly connected with an end cover.
5. The device for collecting sediment column samples in coastal waters according to claim 1, characterized in that: The connecting assembly includes a rod body, and the upper and lower ends of the rod body are respectively provided with abutment plates. The ends of the two abutment plates away from the rod body are respectively fixedly connected to extension rods, and a plurality of clamp locking mechanisms are fixedly connected to the extension rods. When connected, the sampling tube and the extension rod are respectively abutted against the abutment plates connected thereto.
6. The device for collecting sediment column samples in coastal waters according to claim 5, characterized in that: The rod body is a hollow structure.
7. The device for collecting sediment column samples in coastal waters according to claim 5, characterized in that: The clamp locking mechanism comprises a fixed clamp body and a rotating clamp body. One end of the rotating clamp body is rotationally connected to the fixed clamp body via a rotating shaft, and the other end of the rotating clamp body is connected to the fixed clamp body via a locking bolt.
8. The device for collecting sediment column samples in coastal waters according to claim 7, characterized in that: The inner surfaces of the fixed hoop body and the rotating hoop body are evenly provided with a plurality of convex ribs, and the plurality of convex ribs are distributed along the axial direction of the inner surface of the hoop.
9. The device for collecting sediment column samples in coastal waters according to claim 8, characterized in that: An anti-slip layer is arranged on the contact surface between the convex rib and the sampling tube.
10. The device for collecting sediment column samples in coastal waters according to claim 1, characterized in that: The upward movable angle of the fan-shaped plate is between 0° and 90°.