Sediment capturer suitable for coral reef coast power environment

Abstract

The utility model provides a sediment capturer suitable for coral reef coast power environment, which belongs to the field of ocean sediment power observation equipment and comprises a fixed support, a plurality of inner sleeves, a plurality of outer sleeves and a base, the fixed support is arranged on the base, and the base is connected with the fixed support through a flange seat. The outer sleeves are arranged on the fixing support and connected with the fixing support through the connecting pieces, the inner sleeves are arranged in the outer sleeves, and the inner sleeves and the outer sleeves are arranged in a clamped mode. The sediment capturer is small in size, and each part of the sediment capturer is designed to be detachable, so that the sediment capturer is convenient to carry and store; the overall weight is light, the cost is low, the design structure is simple, and laying and recycling are facilitated in a water-lung diving mode; the device can work together with hydrodynamic and sediment observation instruments, so that the observation time is effectively saved, and the efficiency is improved; the device is stable in structure and suitable for sampling and observing suspended sediment in a coral reef coast environment with active hydrodynamic conditions.

Description

Technical Field

[0001] The utility model relates to the field of marine sediment dynamics observation equipment, in particular to a sediment trap suitable for coral reef coastal dynamic environments. Background Art

[0002] Marine sediments, as accumulations of suspended matter, record information about the physical, chemical, and biological processes in the marine environment. Sediment traps, devices that capture and collect settling particles in seawater, are crucial for in situ monitoring of sediment flux and analyzing the source, composition, and spatiotemporal distribution of settled matter. They are essential tools for studying marine sediment dynamics and marine biogeochemistry. To accurately investigate the relationship between suspended matter particle size distribution and pollutants in field waters, it is necessary to measure the suspended matter content of different particle sizes in real-world water environments.

[0003] With the deepening of research on estuaries, coasts and offshore areas, the demand for professional sediment traps is increasing. Existing sediment traps have problems such as large size, complex structure, and high cost. In addition, the deployment conditions are strict and they are not suitable for shallow water environments such as coral reefs. The sediment traps need to be moved as a whole to a surface vessel for repeated deployment, which makes it impossible to conduct coral reef ecological surveys and quickly replace the collection device underwater. In addition, the design of existing traps does not fully consider the field environment and compatibility with other instruments. Therefore, there is an urgent need to develop a new type of universal collection device that should be suitable for coral island reef environments and coral reef ecological restoration projects. It should be able to cooperate with other observation equipment to achieve accurate collection of different water layers and support long-term sequence research. Utility Model Content

[0004] The purpose of this utility model is to provide a sediment trap suitable for use in coral reef coastal dynamic environments, resolving the technical issues of existing sediment traps, which are bulky and complex in structure. This utility model is compact, simple in structure, easy to assemble and disassemble, and meets the requirements for rapid deployment and adaptability to sampling at varying water depths. Furthermore, it has the advantage of being used in conjunction with hydrodynamic observation instruments, enabling stable, convenient, and efficient capture of suspended sediment in coral reef coastal environments. It is therefore suitable for collecting suspended sediment in coral island and reef environments.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A sediment trap suitable for the dynamic environment of coral reef coasts, comprising a fixed bracket, a plurality of inner sleeves, a plurality of outer sleeves and a base. The fixed bracket is arranged on the base, and the base and the fixed bracket are connected via a flange seat. The plurality of outer sleeves are respectively arranged on the fixed bracket, and the outer sleeves are connected to the fixed bracket via a connector. The inner sleeve is arranged inside the outer sleeve, and the inner sleeve and the outer sleeve are clamped together.

[0007] Furthermore, a first connecting hole is provided in the middle of the base, the flange seat is provided on the first connecting hole, and the lower end of the flange seat is connected to the base, and a plurality of hanging rings are provided on both sides of the base.

[0008] Furthermore, a third connecting hole is provided at the upper end of the fixing bracket, and several second connecting holes are provided in the middle of the fixing bracket. The several second connecting holes are spirally staggered, and the connecting piece is passed through the second connecting holes. The lower end of the fixing bracket is nested and connected with the flange seat.

[0009] Furthermore, holes and grooves are symmetrically provided on both sides of the top of the outer sleeve, the outer sleeve and the inner sleeve are clamped together through the holes and grooves, and outer sleeve wall screws are provided on both sides of the lower part of the outer sleeve.

[0010] Furthermore, the hole groove includes a first vertical groove, an arcuate groove and a second vertical groove. The first vertical groove is opened at the top of the outer sleeve. The first vertical groove is connected to the arcuate groove, and the arcuate groove is connected to the second vertical groove. The second vertical groove is shorter than the first vertical groove.

[0011] Furthermore, the connecting member includes a steel ring and a screw. The steel ring is sleeved on the outside of the outer sleeve, and the two sides of the steel ring are respectively connected by bolts. The screw is arranged at the bottom of the steel ring, and one end of the screw is connected to the steel ring. The other end of the screw is arranged through the second connecting hole, and the other end of the screw is fixed by a nut.

[0012] Furthermore, the inner sleeve includes an inner sleeve short tube, large and small joints, a copper internal thread straight through and a collection bottle. The lower end of the inner sleeve short tube is connected to the large head interface end of the large and small joints, the small head interface end of the large and small joints is connected to the upper end of the copper internal thread straight through, and the upper end of the collection bottle is threadedly connected to the lower end of the copper internal thread straight through.

[0013] Furthermore, a nylon screen is provided at the top of the inner short tube, and the nylon screen is bonded to the inner short tube by hot melt adhesive. An inner tube wall screw is provided on the upper part of the inner short tube, and the inner tube wall screw is clamped on the hole groove of the outer tube.

[0014] The utility model has the following beneficial effects due to the adoption of the above technical solution:

[0015] The sediment trap of the present invention has a compact size and a simple structure, and its various components are designed to be detachable for easy carrying and storage. It is lightweight and low-cost, and can be easily deployed and recovered by scuba diving. It can be deployed simultaneously with hydrodynamic observation instruments such as ADCP (Acoustic Doppler Current Profiler) to collect hydrodynamic numbers and sediment data, helping to analyze the relationship between hydrodynamic conditions and sediment deposition. It has a stable structure and is suitable for sampling and observing suspended sediment in coral reef coastal environments with relatively active hydrodynamic conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the sediment trap of the utility model;

[0017] Figure 2 This is a schematic structural diagram of the outer sleeve of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the inner sleeve of the utility model.

[0019] In the accompanying drawings, 1-fixed bracket, 11-second connecting hole, 12-third connecting hole, 2-inner sleeve, 21-inner sleeve short tube, 22-large and small joints, 23-copper inner thread straight through, 24-collection bottle, 25-nylon screen, 26-inner sleeve wall screw, 3-outer sleeve, 31-hole groove, 32-outer sleeve wall screw, 34-first vertical groove, 35-arc groove, 36-second vertical groove, 4-steel ring, 6-base, 61-first connecting hole, 62-lifting ring, 7-screw, 8-bolt. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions, and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many of the details listed in this specification are merely provided to help readers gain a thorough understanding of one or more aspects of the present invention, and these aspects of the present invention can be implemented even without these specific details.

[0021] like Figure 1 As shown, a sediment trap suitable for the dynamic environment of coral reef coasts includes a fixed bracket 1, a plurality of inner sleeves 2, a plurality of outer sleeves 3 and a base 6. The fixed bracket 1 is arranged on the base 6, and the base 6 is connected to the fixed bracket 1 through a flange seat 5. The plurality of outer sleeves 3 are respectively arranged on the fixed bracket 1, and the outer sleeves 3 are connected to the fixed bracket 1 through a connector, which can keep the sediment trap vertical. The inner sleeve 2 is arranged inside the outer sleeve 3, and the inner sleeve 2 and the outer sleeve 3 are snap-fitted, which is convenient for quick disassembly and replacement. The sediment trap of the utility model is designed to be easy to disassemble and assemble, mainly using PVC pipes, and is easy to process on a large scale. The device is suitable for the dynamic environment of coral reef coasts and is suitable for short-term high-frequency sampling operations.

[0022] In an embodiment of the present utility model, a first connecting hole 61 is provided in the middle of the base 6 for installing the flange seat 5. The flange seat 5 is provided on the first connecting hole 61, and the lower end of the flange seat 5 is connected to the base 6. Stainless steel screws and expansion tubes are used to connect the flange seat 5 and the base 6. Several lifting rings 62 are provided on both sides of the base 6 to facilitate lifting and placing the base 6 on the underwater bed by threading ropes on both sides.

[0023] In an embodiment of the present utility model, a third connecting hole 12 is provided at the upper end of the fixing bracket 1, and a plurality of second connecting holes 11 are respectively provided at the middle portion of the fixing bracket 1. The plurality of second connecting holes 11 are spirally staggered, and the connecting piece is provided through the second connecting hole 11. The lower end of the fixing bracket 1 is nested and connected with the flange seat 5, and the screws are tightened to fix it. When it is not in use, it can be disassembled for convenient storage or carrying without taking up too much space.

[0024] like Figure 2 As shown, the outer sleeve 3 has symmetrical slots 31 on both sides of its top, through which the outer sleeve 3 and the inner sleeve 2 are clamped. The outer sleeve 3 is provided with outer sleeve wall screws 32 on both sides of its lower portion, each of which is provided with a plurality of nuts. After the outer sleeve wall screws 32 pass through the outer sleeve 3, they are fixed with nuts. The slots 31 include a first vertical slot 34, an arcuate slot 35, and a second vertical slot 36. The first vertical slot 34 is provided at the top of the outer sleeve 3, and is connected to the arcuate slot 35. The arcuate slot 35 is connected to the second vertical slot 36. The second vertical slot 36 is shorter than the first vertical slot 34. After the first vertical slots 34 are provided vertically along the top of both sides of the outer sleeve 3, arcuate slots 35 are provided counterclockwise along the circumference of the tube, and then the second vertical slots 36 are provided vertically.

[0025] like Figure 1 As shown, the connecting member includes a steel ring 4 and a screw 7. The steel ring 4 is sleeved on the outside of the outer sleeve 3, and the two sides of the steel ring 4 are connected by bolts 8. The screw 7 is set at the bottom of the steel ring 4, and one end of the screw 7 is connected to the steel ring 4. The other end of the screw 7 is set through the second connecting hole 11 and is fixed by a nut. The inside of the steel ring 4 contains a soft rubber pad. The inner diameter of the steel ring 4 is adjusted by the bolts 8 on both sides. After the screw 7 passes through the fixing bracket 1, it is fixed by a nut. When not in use, it can be disassembled for convenient storage or carrying without taking up too much space.

[0026] like Figure 3As shown, the inner sleeve 2 includes an inner sleeve short tube 21, a large and small joints 22, a copper internal thread straight-through 23, and a collection bottle 24. The lower end of the inner sleeve short tube 21 is connected to the large end interface end of the large and small joints 22, and the small end interface end of the large and small joints 22 is connected to the upper end of the copper internal thread straight-through 23. The upper end of the collection bottle 24 is threadedly connected to the lower end of the copper internal thread straight-through 23. The collection bottle 24 is used to collect and store sediment sediment in seawater. A sealing ring is provided between the threads to achieve sealing and removable reuse. The outer diameter of the large end interface of the large and small joints 22 is coated with PVC water supply adhesive and connected to the inner diameter of the lower end of the inner sleeve short tube 2; the outer diameter of the copper internal thread socket of the copper internal thread straight-through 23 is coated with PVC water supply adhesive and connected to the inner diameter of the small end of the large and small joints 22; the collection bottle 24 is screwed together by screwing the outer thread of the bottle mouth with the inner diameter thread of the copper internal thread, making it convenient to replace a new collection bottle. The sediment that enters the sediment trap is eventually collected in the collection bottle. By removing the collection bottle, the collected material, or sediment, can be obtained separately. Finally, the obtained sediment can be used for relevant experimental research. After removing the collection bottle, a new bottle can be installed and used for the next sediment capture, which is convenient and quick.

[0027] In an embodiment of the present invention, a nylon mesh 25 is provided at the top of the inner short tube 21. The nylon mesh 25 and the inner short tube 21 are bonded by hot melt adhesive. An inner tube wall screw 26 is provided at the top of the inner short tube 21. A plurality of nuts are provided on the inner tube wall screw 26. After the inner tube wall screw 26 passes through the inner short tube 21, it is fixed by the nuts. The inner tube wall screw 26 is clamped on the hole groove 31 of the outer tube 3. The inner tube wall screw is used to form a horizontal screw through the top of the inner short tube, which is rotated and fixed after being inserted into the hole groove of the outer tube; the inner tube wall screw 26 on the inner short tube 21 is used to slide and fasten the hole groove 31 of the outer tube 3, which facilitates the in-situ replacement of the sampling tube underwater, and there is no need to move the sediment trap as a whole to a surface vessel for replacement.

[0028] The sediment trap set up in this practical type can be deployed in the form of selected research areas. In the shallow water area of the reef flat, bottom-sitting deployment can be selected. In the deep water area of the reef front slope and the back reef lagoon slope of the coral island reef, ropes can be used to connect the underwater buoy, multiple traps, fixed brackets and bases in sequence, and deployed in multiple water layers in the form of a submerged buoy.

[0029] Operation process

[0030] The sediment trap is submerged in a set water depth and left for a period of time. The bottom sediment passes through a nylon mesh 25 into an inner short tube 21 and then into a collection bottle 24, where it is collected. The thickness or weight of the captured sediment layer is measured, and based on the inlet area of the sediment trap and the sediment collection time, the mass of sediment per unit area per unit time is calculated, thereby obtaining the sedimentation rate. Furthermore, the collected samples are graded and filtered using filter membranes of varying pore sizes to separate suspended particles of varying sizes. The filtered sediment samples are then dried in a low-temperature oven to remove moisture, facilitating subsequent particle size analysis or geochemical analysis.

[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A sediment trap suitable for use in dynamic coral reef coastal environments, characterized by: The invention comprises a fixed bracket (1), a plurality of inner sleeves (2), a plurality of outer sleeves (3) and a base (6); the fixed bracket (1) is arranged on the base (6), and the base (6) and the fixed bracket (1) are connected via a flange seat (5); the plurality of outer sleeves (3) are respectively arranged on the fixed bracket (1), and the outer sleeves (3) and the fixed bracket (1) are connected via a connecting piece; the inner sleeve (2) is arranged inside the outer sleeve (3), and the inner sleeve (2) and the outer sleeve (3) are clamped together.

2. A sediment trap suitable for coral reef coastal dynamic environments according to claim 1, characterized in that: A first connecting hole (61) is provided in the middle of the base (6), the flange seat (5) is provided on the first connecting hole (61), and the lower end of the flange seat (5) is connected to the base (6), and a plurality of lifting rings (62) are respectively provided on both sides of the base (6).

3. The sediment trap suitable for coral reef coastal dynamic environment according to claim 1, characterized in that: The upper end of the fixed bracket (1) is provided with a third connecting hole (12), and the middle part of the fixed bracket (1) is provided with a plurality of second connecting holes (11), the plurality of second connecting holes (11) are arranged in a spiral staggered manner, and the connecting piece is arranged through the second connecting holes (11), and the lower end of the fixed bracket (1) is nested and connected with the flange seat (5).

4. The sediment trap suitable for coral reef coastal dynamic environment according to claim 1, characterized in that: Holes (31) are symmetrically provided on both sides of the top of the outer sleeve (3), the outer sleeve (3) and the inner sleeve (2) are clamped together through the holes (31), and outer sleeve wall screws (32) are provided on both sides of the lower part of the outer sleeve (3).

5. The sediment trap suitable for coral reef coastal dynamic environment according to claim 4, characterized in that: The hole groove (31) includes a first vertical groove (34), an arcuate groove (35) and a second vertical groove (36). The first vertical groove (34) is opened at the top of the outer sleeve (3). The first vertical groove (34) is connected to the arcuate groove (35). The arcuate groove (35) is connected to the second vertical groove (36). The second vertical groove (36) is shorter than the first vertical groove (34).

6. The sediment trap suitable for coral reef coastal dynamic environment according to claim 1, characterized in that: The connecting member comprises a steel ring (4) and a screw (7). The steel ring (4) is sleeved on the outside of the outer sleeve (3), and both sides of the steel ring (4) are connected by bolts (8). The screw (7) is arranged at the bottom of the steel ring (4), and one end of the screw (7) is connected to the steel ring (4). The other end of the screw (7) is arranged through the second connecting hole (11), and the other end of the screw (7) is fixed by a nut.

7. The sediment trap suitable for coral reef coastal dynamic environment according to claim 1, characterized in that: The inner sleeve (2) comprises an inner sleeve short tube (21), a large and small joint (22), a copper inner thread straight-through tube (23) and a collection bottle (24). The lower end of the inner sleeve short tube (21) is connected to the large end interface end of the large and small joint (22), the small end interface end of the large and small joint (22) is connected to the upper end of the copper inner thread straight-through tube (23), and the upper end of the collection bottle (24) is threadedly connected to the lower end of the copper inner thread straight-through tube (23).

8. The sediment trap suitable for coral reef coastal dynamic environment according to claim 7, characterized in that: The top of the inner short tube (21) is provided with a nylon screen (25), and the nylon screen (25) and the inner short tube (21) are bonded by hot melt adhesive. The upper part of the inner short tube (21) is provided with an inner tube wall screw (26), and the inner tube wall screw (26) is clamped on the hole groove (31) of the outer tube (3).

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