阅读说明：本技术 一种珊瑚礁区中小型海洋生物研究保护用诱捕采集装置 (trapping and collecting device for research and protection of small and medium-sized marine organisms in coral reef area ) 是由 韩金臻 吴丹 王泽锴 陈斌星 傅宇阳 郭金甲 於临风 于 2019-10-14 设计创作，主要内容包括：本发明提供一种珊瑚礁区中小型海洋生物研究保护用诱捕采集装置,涉及生物技术领域,该珊瑚礁区中小型海洋生物研究保护用诱捕采集装置,包括框架、多个弧形板、多个诱捕机构、诱饵仓、多个隔板、浮球和固定机构,多个弧形板绕框架的轴线等角度分布,诱饵仓呈竖直状位于框架的轴线处,多个隔板位于框架内,多个隔板绕框架的轴线等角度分布。该珊瑚礁区中小型海洋生物研究保护用诱捕采集装置,借助诱饵仓内饵料在海水流动作用下,味道散开来吸引鱼类,通过下弧板与盖板相互配合,令管道的开口只能单向打开,令鱼类进入活动腔后无法逃出。进而达到诱捕的效果。便于在珊瑚礁区域捕捉鱼类,可防止鱼类从装置内逃出。(The invention provides a trapping and collecting device for research and protection of small and medium-sized marine organisms in a coral reef area, and relates to the technical field of biology. This middle-size and small-size marine organism research protection in coral reef area is with traping collection system, with the help of bait in the bait storehouse under the sea water flow effect, the taste scatters and attracts fish, through arc board and apron mutually supporting down, makes the opening of pipeline can only one-way open, makes fish can't escape after getting into the activity chamber. Thereby achieving the trapping effect. The device is convenient for catching the fishes in the coral reef area and can prevent the fishes from escaping from the device.)

1. A trapping and collecting device for research and protection of small and medium-sized marine organisms in coral reef areas is characterized in that: comprises a frame (1), a plurality of arc-shaped plates (2), a plurality of trapping mechanisms, a bait bin (7), a plurality of partition plates (8), a floating ball (11) and a fixing mechanism (12), wherein the arc-shaped plates (2) are distributed around the axis of the frame (1) at equal angles, the bait bin (7) is vertically positioned at the axis of the frame (1), the partition plates (8) are positioned in the frame (1), the partition plates (8) are distributed around the axis of the frame (1) at equal angles, the partition plates (8) divide the interior of the frame (1) into a plurality of movable cavities (3), the movable cavities (3) are in one-to-one correspondence with the arc-shaped plates (2), the trapping mechanisms are positioned below the arc-shaped plates (2) in an inclined manner, the floating ball (11) is positioned above the frame (1), and the fixing mechanism (12) is arranged at the bottom of the frame (1), the floating ball (11) and the fixing mechanism (12) are both positioned at the axis of the frame (1), bait for attracting fish is placed in the bait bin (7), the movable cavity (3) is communicated with the outside through the trapping mechanism, the trapping mechanism is provided with an inlet channel, and after the fish enters the movable cavity (3) through the trapping mechanism, the trapping mechanism closes the channel to trap the fish.

2. The trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 1, wherein: the bait frame is characterized in that the frame (1) is composed of two circular frames, the two circular frames are perpendicular to each other, the two circular frames are located on the same axis, the two circular frames are crossed and located in the bait bin (7) to be connected, and the circular frames are connected with the arc-shaped plate (2) and the partition plate (8) respectively.

3. The trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 1, wherein: arc (2) include arc (21), arc (22) down and kickboard (24), go up arc (21) and be located arc (22) top down, inlet opening (23) have been seted up down arc (22), and kickboard (24) are established between arc (21) and arc (22) down, and kickboard (24) are used for providing buoyancy, it is connected with arc (22) down to trap the mechanism.

4. the trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 3, wherein: the trapping mechanism comprises a pipeline (4), a first magnet (5), a cover plate (6), a second magnet (62) and a hinged block (63), the pipeline (4) is positioned on the outer side of the lower arc plate (22), the pipeline (4) is in threaded connection with the lower arc plate (22), one end of the pipeline (4) far away from the lower arc plate (22) inclines downwards, the first magnet (5) is arranged on the outer surface of the arc plate (2), the cover plate (6) is positioned on the inner side of the lower arc plate (22), the cover plate (6) is corresponding to the pipeline (4), the opening of the pipeline (4) can be sealed by the cover plate (6), the upper end of the cover plate (6) is hinged with the inner surface of the lower arc plate (22) through a hinge block (63), the second magnet (62) is arranged at the lower end of the cover plate (6), the second magnet (62) is corresponding to the first magnet (5), and the second magnet (62) is attracted with the first magnet (5), when the second magnet (62) and the first magnet (5) attract each other, the opening of the pipeline (4) is closed by the cover plate (6).

5. the trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 4, wherein: the pipeline (4) further comprises a sponge ring (41) and cloth strips (42), the sponge ring (41) is arranged on the outer surface of the pipeline (4), the cloth strips (42) are connected with the sponge ring (41), the cloth strips (42) can float along with the flow of seawater, and the cloth strips (42) are used for simulating tentacles of sea anemones.

6. The trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 1, wherein: fixing mechanism (12) are including shell (121), pivot (122), spiral shell spring (123), rope (124), anchor block (125) and clip (126), shell (121) are connected with frame (1) bottom, pivot (122) are established in shell (121), pivot (122) one end extends to outside shell (121), spiral shell spring (123) are established on pivot (122), clip (126) are established in shell (121) below, rope (124) one end is twined on pivot (122), shell (121) are passed in order to rope (124) other end, clip (126), and be connected with anchor block (125), clip (126) are used for blocking rope (124).

7. The trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 1, wherein: be equipped with control box (9) on frame (1), be equipped with battery compartment (91), singlechip (92) and image sensor (93) in control box (9), battery compartment (91) are used for passing through electric power for singlechip (92), image sensor (93), singlechip (92) model is STM32L4, image sensor (93) model is MN34229, the bottom of control box (9) is equipped with a plurality of cameras (10), a plurality of cameras (10) and a plurality of activity chamber (3) one-to-one, camera (10) camera lens stretch into in the activity chamber (3).

8. The trapping and collecting device for the research and protection of the small and medium-sized marine organisms in the coral reef areas as claimed in claim 1, wherein: discharge ports (71) are formed in the periphery of the bait bin (7), and after the bait bin (7) is immersed in the sea, bait in the bait bin (7) can float out of the discharge ports (71).

Technical Field

The invention relates to the technical field of biotechnology, in particular to a trapping and collecting device for researching and protecting small and medium-sized marine organisms in coral reef areas.

background

The capture of marine life generally refers to the capture of marine animals, which generally need to be captured and then studied in order to study or protect marine life. Among them, the coral reef ecosystem is one of marine ecosystems with extremely high biodiversity and primary productivity, and provides excellent habitat and food resources for various organisms.

The research on the small and medium-sized marine animal samples of the coral reefs in the shallow sea is beneficial to understanding the current situations of material circulation and energy transfer in the coral reef ecosystem, and the health and the functions of the coral reef ecosystem in the shallow sea are evaluated.

For this purpose, corresponding tools are required. For example, a Chinese patent network discloses a trapping and collecting device for zooplankton at the bottom of a coral reef area, and the patent number is 201910267136.1. The device comprises an upper net bag and a lower net bag, wherein a slipknot is arranged between the upper net bag and the lower net bag and is connected with an anchor. The diver finds a proper position at the water bottom according to the actual sampling requirement and then fixes the position by the anchor, and the zipper is unzipped before the diver leaves the water bottom and the door is fixed. And after a proper time, the zipper is zipped up, and the whole device is taken out of the water surface.

The above devices still suffer from some disadvantages. The device is relatively simple and is only suitable for collecting zooplankton in the coral reef area. The zip fastener of whole string bag department is in the open mode always in aqueous, and fish swim out from string bag zip fastener easily, and fish compare zooplankton activity more nimble, so fish swim out from above-mentioned string bag zip fastener easily. Therefore, the method is inconvenient for trapping some fishes at the coral reef, and is easy to cause the trapping failure.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a trapping and collecting device for researching and protecting small and medium-sized marine organisms in a coral reef area, and solves the problems that a coral reef fish sample trapping device generally used in a shallow sea in the background technology is simple in structure, inconvenient for trapping fish and easy to cause trapping failure.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a trapping and collecting device for researching and protecting small and medium-sized marine organisms in coral reef areas comprises a frame, a plurality of arc-shaped plates, a plurality of trapping mechanisms, a bait bin, a plurality of partition plates, a floating ball and a fixing mechanism, wherein the arc-shaped plates are distributed at equal angles around the axis of the frame, the bait bin is vertically positioned at the axis of the frame, the partition plates are positioned in the frame and distributed at equal angles around the axis of the frame, the partition plates divide the interior of the frame into a plurality of movable cavities, the movable cavities are in one-to-one correspondence with the arc-shaped plates, the trapping mechanisms are in one-to-one correspondence with the arc-shaped plates, the floating ball is positioned above the frame, the fixing mechanism is arranged at the bottom of the frame, the floating ball and the fixing mechanism are positioned at the axis of the frame, baits for trapping fishes are placed in the bait bin, the movable cavities are communicated with the outside through the trapping mechanisms, and the trapping mechanisms are provided, when the fish enters the movable cavity through the trapping mechanism, the trapping mechanism closes the passage to trap the fish.

preferably, the frame comprises two circular frames, the two circular frames are perpendicular to each other, the two circular frames are located on the same axis, the two circular frames are crossed and located in the bait bin to be connected, and the circular frames are connected with the arc-shaped plate and the partition plate respectively.

Preferably, the arc includes arc, lower arc and kickboard, goes up the arc and is located arc top down, and the inlet opening has been seted up to lower arc, and the kickboard is established between arc and the lower arc, and the kickboard is used for providing buoyancy, it is connected with lower arc to trap the mechanism.

Preferably, it includes pipeline, magnet one, apron, magnet two and articulated piece to trap the mechanism, the pipeline is located the arc outside down, pipeline and arc threaded connection down, and arc one end slope is downward under the pipeline is kept away from, and magnet one is established in arc surface department, and the apron is located the arc inboard down, and the apron is corresponding with the pipeline, and the apron can seal the pipeline opening, and the upper end of apron is articulated through articulated piece and arc inboard surface down, and magnet two is established at the apron lower extreme, and magnet two is corresponding with magnet one, magnet two and magnet one are inhaled mutually, inhale the back shroud closed the pipeline opening mutually when magnet two and magnet one.

Preferably, the pipeline still includes sponge circle and cloth, and the sponge circle is established at the pipeline surface, and the cloth is connected with the sponge circle, and the cloth can wave along with the sea water flow, and the cloth is used for imitating the tentacle of sea anemone.

Preferably, fixed establishment includes shell, pivot, spiral spring, rope, anchor and clip, and the shell is connected with the frame bottom, and the pivot is established in the shell, and pivot one end extends to outside the shell, and spiral spring establishes in the pivot, and the clip is established in the shell below, and rope one end winding is in the pivot, and the rope other end passes shell, clip in order to be connected with the anchor, the clip is used for blocking the rope.

Preferably, be equipped with the control box on the frame, be equipped with battery compartment, singlechip and image sensor in the control box, the battery compartment is used for passing through electric power for singlechip, image sensor, and the singlechip model is the STML, and the image sensor model is the MN, and the bottom of control box is equipped with a plurality of cameras, a plurality of cameras and a plurality of movable chamber one-to-one, the camera lens stretches into movable intracavity.

Preferably, the bait cabin is provided with discharge ports all around, and after the bait cabin is immersed in the sea, bait in the bait cabin can float out of the discharge ports.

(III) advantageous effects

the invention provides a trapping and collecting device for researching and protecting small and medium-sized marine organisms in coral reef areas.

The method has the following beneficial effects:

1. This middle-size and small-size marine organism research protection in coral reef area is with traping collection system, with the help of bait in the bait storehouse under the sea water flow effect, the taste scatters and attracts fish, through arc board and apron mutually supporting down, makes the opening of pipeline can only one-way open, makes fish can't escape after getting into the activity chamber. Thereby achieving the trapping effect. The device is convenient for catching the fishes in the coral reef area and can prevent the fishes from escaping from the device.

2. This middle-size and small-size marine life in coral reef area research protection is with traping collection system uses through the cooperation of pivot, rope, spiral spring and clip for the length that stretches out in the rope follow shell can change, and then changes the floating height of whole device, makes whole device float not with near coral reef contact, is applicable to the area that the coral is many partially.

Drawings

FIG. 1 is a perspective view of the structure of the present invention;

FIG. 2 is an exploded view of the structure of the present invention;

FIG. 3 is a partial cross-sectional view of the structure of the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 2A according to the present invention;

FIG. 5 is a view showing the structural state of the arc plate according to the present invention;

FIG. 6 is a second view of the arc-shaped plate structure of the present invention;

FIG. 7 is a view showing the structure of the arc-shaped plate according to the present invention;

FIG. 8 is a schematic view of the separator plate structure of the present invention;

Figure 9 is a schematic view of the structure of a bait cartridge of the invention;

FIG. 10 is a partial cross-sectional view of the securing mechanism configuration of the present invention;

FIG. 11 is a sectional view of the control box structure of the present invention;

fig. 12 is a structural operation reference diagram of the present invention.

In the figure: 1 frame, 2 arc boards, 21 upper arc board, 22 lower arc board, 23 inlet openings, 24 floating boards, 3 movable cavities, 4 pipelines, 41 sponge rings, 42 cloth strips, 5 magnet I, 6 cover boards, 61 filter holes, 62 magnet II, 63 hinged blocks, 7 bait bins, 71 discharge ports, 8 partition boards, 81 sponge boards, 9 control boxes, 91 battery bins, 92 single-chip microcomputers, 93 image sensors, 10 cameras, 11 floating balls, 12 fixing mechanisms, 121 shells, 122 rotating shafts, 123 volute springs, 124 ropes, 125 fixing anchors and 126 clamps.

Detailed Description

The embodiment of the invention provides a trapping and collecting device for researching and protecting small and medium-sized marine organisms in coral reef areas, which comprises a frame 1, a plurality of arc-shaped plates 2, a plurality of trapping mechanisms, a bait bin 7, a plurality of partition plates 8, a floating ball 11 and a fixing mechanism 12, as shown in figures 1-12. The arc plates 2 are distributed at equal angles around the axis of the frame 1, and two sides of the arc plates 2 are welded with the frame. The bait chamber 7 is vertically positioned at the axis of the frame 1, and the end part of the bait chamber 7 is welded with the frame 1. A plurality of baffle 8 are located frame 1, and a plurality of baffle 8 are around the equal angular distribution of the axis of frame 1, and baffle 8 and frame 1 welding. The interior of the frame 1 is divided into a plurality of movable chambers 3 by partitions 8. The plurality of movable cavities 3 correspond to the plurality of arc-shaped plates 2 one by one. A plurality of mechanisms of traping and a plurality of arc 2 one-to-one, the mechanism of traping fixed mounting is in the oblique below of arc 2. The floating ball 11 is fixedly arranged above the frame 1, the fixing mechanism 12 is fixedly arranged at the bottom of the frame 1, and the floating ball 11 and the fixing mechanism 12 are both positioned at the axis of the frame 1. Bait for attracting fishes is placed in the bait bin 7, the movable cavity 3 is communicated with the outside through the trapping mechanism, the trapping mechanism is provided with an inlet channel, and after the fishes enter the movable cavity 3 through the trapping mechanism, the trapping mechanism closes the channel to trap the fishes. With reference to the attached drawing 12, in operation, a coral reef open space is selected, the whole device is immersed in the sea, the fixing device 12 is fixed with the sea bottom, and the floating ball 11 is utilized to enable the whole device to be in a suspension state. And the floating ball 11 is more striking, so that the sample can be easily found by people when being recovered. When the whole device is immersed in the sea, the bait smell in the bait bin 7 slowly drifts out, the fishes near the coral reef are attracted by the bait smell, the fishes near the coral reef are influenced by the bait to be close to the device, and the channel of the trapping mechanism is closed to trap the fishes after the fishes enter the movable cavity 3 through the channel of the trapping mechanism.

compared with the prior art, the device is convenient for catching flexible fishes, has the function of automatic sealing and can avoid the fishes from escaping. And the whole device is arranged in a plurality of movable cavities 3, and the space for storing fish is divided into a plurality of spaces. Can avoid the situation that other fishes are eaten due to the entering of predators. A portion of the sample may be preserved.

The frame 1 is composed of two circular frames which are vertically welded together. The two circular frames are on the same axis. The two circular frames are crossed and welded at the end part of the bait bin 7. The circular frame is respectively welded with the arc-shaped plate 2 and the clapboard 8. Sponge plates 81 are fixedly bonded on two sides of the partition plate 8 respectively, and the sponge plates 81 have a protection effect. Avoiding the fish in the activity chamber 3 from striking the baffle plate 8 and being injured.

The arc plate 2 includes an upper arc plate 21, a lower arc plate 22, and a floating plate 24. The upper arc plate 21 and the lower arc plate 22 are welded with the frame 1. The upper arc plate 21 is fixedly welded above the lower arc plate 22. The lower arc plate 22 is provided with a plurality of water inlets 23, and the aperture of the water inlets 23 is smaller. So that most of the fish entering the activity chamber 3 cannot escape through the inlet openings. And the aperture size can be adjusted according to the actual situation. The floating plate 24 is fixedly welded between the upper arc plate 21 and the lower arc plate 22. The floating plate 24 functions similarly to the floating ball 11 to provide buoyancy. The trap mechanism is connected to the lower arc plate 22.

The trapping mechanism comprises a pipe 4, a first magnet 5, a cover plate 6, a second magnet 62 and a hinge block 63. The pipe 4 is located outside the lower arc plate 22. As shown in fig. 7, the surface of the pipe 4 is provided with threads, so that the pipe 4 is screwed with the lower arc plate 22. The end of the pipeline 4 far away from the lower arc plate 22 is inclined downwards, and the first magnet 5 is fixedly embedded at the outer surface of the arc plate 2. The first magnet 5 is positioned below the pipe 4. The cover plate 6 is positioned on the inner side of the lower arc plate 22, the cover plate 6 corresponds to the pipeline 4, and the cover plate 6 can seal the opening of the pipeline 4. The upper end of the cover plate 6 is hinged with the inner surface of the lower arc plate 22 through a hinge block 63. Therefore, referring to fig. 6, the lower end of the cover plate 6 is a movable end, and the whole cover plate 6 can be turned up.

The second magnet 62 is fixedly embedded at the lower end of the cover plate 6. Magnet two 62 corresponds to magnet one 5. The second magnet 62 and the first magnet 5 attract each other, and when the second magnet 62 and the first magnet 5 attract each other, the cover plate 6 closes the opening of the pipeline 4. The first magnet 5 and the second magnet 62 are matched to play a certain limiting role. The cover plate 6 is prevented from automatically tilting under the flowing of seawater. The whole cover plate 6 can be tilted only by jacking up the cover plate 6 by the fishes after the fishes enter the pipeline 4. The cover plate 6 is provided with the filter holes 61, so that the area of the cover plate 6 is reduced, and the resistance of the cover plate 6 during turning is further reduced. While assisting in the flavor dispersion of the bait. The taste of the bait can enter the tube 4. During operation, fish enter the pipeline 4 and flow along with the pipeline 4, when the fish are close to the cover plate 6, the taste of the bait is stronger, at the moment, the fish push the cover plate 6 open to enter the movable cavity 3, then the cover plate 6 falls down due to self weight, and the first magnet 5 and the second magnet 62 are close to and attracted with each other again. The cover plate 6 blocks the opening of the pipeline 4, and fish are trapped in the movable cavity 3 because the cover plate 6 cannot be reversely turned. Achieving the trapping effect.

The magnetic force between the first magnet 5 and the second magnet 62 is not large, the cover plate 6 is light in weight, and the cover plate 6 is only used for limiting the cover plate 6 from turning up when the fish bumps against the cover plate. Therefore, the magnetic force between the magnets and the weight of the cover plate 6 can be adjusted and changed according to actual conditions.

The pipeline 4 further comprises a sponge ring 41 and a cloth strip 42, and the sponge ring 41 is adhered to the outer surface of the pipeline 4. The cloth strip 42 is fixed with the sponge ring 41 in a sewing manner. The cloth strip 42 can flutter with the flow of the seawater, and the cloth strip 42 is used for simulating tentacles of sea anemones. Since a large amount of sea anemones are present in the coral reef, some of the fishes in the coral reef, such as clown fishes and the like, are at sea anemones. Therefore, the cloth strips 42 and the sponge rings 41 are matched to simulate the tentacle swing of the sea anemone, the alertness of the fishes is reduced, and the probability that the fishes approach the trapping device is further improved.

This middle-size and small-size marine organism research protection in coral reef area is with traping collection system, with the help of bait 7 in the bait storehouse under the effect that the sea water flows, the taste scatters and attracts fish, through arc 22 and the cooperation of apron 6 down, makes the opening of pipeline 4 only can one-way open, makes fish can't escape after getting into activity chamber 3. Thereby achieving the trapping effect. The device is convenient for catching the fishes in the coral reef area and can prevent the fishes from escaping from the device.

The securing mechanism 12 includes a housing 121, a shaft 122, a spiral spring 123, a cable 124, a tie down anchor 125, and a clip 126. The housing 121 is welded to the bottom of the frame 1, the shaft 122 is pivoted in the housing 121, and one end of the shaft 122 extends out of the housing 121. The spiral spring 123 is disposed on the rotating shaft 122, and the inner end of the spiral spring 123 is welded to the surface of the rotating shaft 122. The outer end of the spiral spring 123 is welded to the inner wall of the housing 121. The clip 126 is provided below the housing 121. One end of the rope 124 is wound and fixed on the rotating shaft 122. The other end of the rope 124 passes through the casing 121 and the clamp 126 in sequence and is fixedly bound with the fixed anchor 125. The cord 124 can be removed from the housing 121 by manually rotating the shaft 122. The action of the wrap spring 123 acts as a return effect. When the rotating shaft 122 rotates, the spiral spring 123 is driven to contract, and when the rotating shaft 122 is released, the spiral spring 123 is slowly restored due to elasticity, so that the rotating shaft 122 reversely rotates to the original position, and the rope 124 can move into the housing 121 and be wound on the rotating shaft 122. Which acts to automatically retract the cord 124.

The purpose of the clip 126 is to retain the cord 124. After the cord 124 is adjusted to the proper length, the cord 124 is clamped by the clamp, causing the clamp 126 to contact the bottom of the housing 121. At this time, the rope 124 cannot move further into the housing 121 due to the presence of the clip, and thus the fixing effect is achieved.

Through the cooperation of pivot 122, rope 124, spiral spring 123 and clip 126 use for the length that rope 124 stretches out from the shell 121 can change, and then changes the floating height of whole device, makes whole device float and not contact with the coral near the coral reef, is applicable to the area of coral excessiveness.

The frame 1 is provided with a control box 9, and the control box 9 is fixedly welded with the top of the frame 1. The lower end of the floating ball 11 is fixedly welded with the top of the control box 9. The inner wall of the control box 9 is fixedly bonded with a battery chamber 91, a singlechip 92 and an image sensor 93. The battery compartment 91 is used for supplying power to the singlechip 92 and the image sensor 93. The model of singlechip 92 is STM32L4, and image sensor 93 model is MN34229, and the bottom fixed mounting of control box 9 has a plurality of cameras 10, a plurality of cameras 10 and a plurality of activity chamber 3 one-to-one, and the camera 10 camera lens stretches into in the activity chamber 3. The camera 10 is used for feeding back the internal condition of the movable cavity 3 to people in time.

The battery compartment 91 is internally provided with a storage battery which can be replaced after a person takes back the trapping device, and the singlechip 92 and the image sensor 93 are both in the prior art, so the specific circuit arrangement, structure and the like are the same as those in the prior art, and the innovation point of the scheme is not described in detail.

When taking a sample to be studied, the first method is to rotate the tube 4 to remove it, align the storage container with the cover plate 6, and slowly lift up the cover plate 6 by hand to allow the sample to enter the storage container. The second method takes the anchor up bringing the whole installation out of the sea, at which point the pipeline 4 is removed again. The samples were taken out by hand and placed in storage containers.

discharge ports 71 are formed in the periphery of the bait bin 7, and after the bait bin 7 is immersed in the sea, baits in the bait bin 7 can float out of the discharge ports 71. The taste of the bait is diffused by the flow of the seawater. Meanwhile, the bait floats out from the discharge port 71 a little for fish to use under the flowing of seawater.

the working principle is as follows: in use, the entire apparatus is immersed in the sea, and the anchor 125 is lowered to anchor the anchor 125 to the shallow sea floor. The whole device is in a dazzling state through the floating plate 24 and the floating ball 11. The bait in the bait bin 7 is soaked in the sea, so that the taste of the bait is slowly dispersed under the flowing of the sea water to attract the fishes. When the fish enter the pipeline 4, the cover plate 6 is pushed open as the fish continue to approach the bait. The fish push the cover plate 6 open and enter the movable cavity 3. Then the cover 6 falls down due to its own weight, and the magnet one 5 and the magnet two 62 are attracted again. The cover plate 6 blocks the opening of the pipeline 4, and fish are trapped in the movable cavity 3.

In conclusion, the trapping and collecting device for researching and protecting the small and medium-sized marine organisms in the coral reef area attracts the fishes by means of the taste dispersion of the baits in the bait bin 7 under the flowing action of the seawater, and the opening of the pipeline 4 can only be opened in one direction through the mutual matching of the lower arc plate 22 and the cover plate 6, so that the fishes cannot escape after entering the movable cavity 3. Thereby achieving the trapping effect. The device is convenient for catching the fishes in the coral reef area and can prevent the fishes from escaping from the device.

In addition, through the matching use of the rotating shaft 122, the rope 124, the scroll spring 123 and the clamp 126, the length of the rope 124 extending out of the shell 121 can be changed, the floating height of the whole device is further changed, the whole device floats without contacting with coral near the coral reef, and the coral reef floating device is suitable for areas with much coral.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.