Ecological fish reef for ecological restoration of benthonic animals

Abstract

The invention discloses an ecological fish reef for ecological restoration of benthonic animals in the technical field of artificial fish reefs, and the ecological fish reef comprises a reef body, three inner cavities are formed in the reef body, a plurality of inlets and outlets are fixedly connected to the positions, located in the inner cavities, of the reef body, the multiple inlets and outlets are distributed in the reef body in a circumferential array mode, and each inlet and outlet is communicated with the corresponding inner cavity; a cleaning mechanism is arranged on the inlet and outlet and used for cleaning shellfish organisms which are attached to the inner wall of the inlet and outlet and block the inlet and outlet from the inner wall of the inlet and outlet; a driving mechanism is arranged on the reef body and used for driving the cleaning mechanisms on all the inlets and outlets to operate. A discharging mechanism is arranged in the reef body and is used for discharging blockages which are cleaned by the cleaning mechanism and are left in the inlet and outlet when the driving mechanism runs; the device can automatically clean blockages at the entrance and exit of the reef body, can effectively ensure that the benthonic animals can smoothly enter and exit the reef body, and improves the effect of ecological restoration of the benthonic animals.

Description

Technical Field

[0001] The present invention relates to the technical field of artificial reefs, and specifically to an ecological reef for the ecological restoration of benthic animals. Background Art

[0002] Benthic animals refer to aquatic animal groups that live at the bottom of water bodies for all or most of their life history. They are an important part of the water ecosystem and play an important role in it. However, under the multiple pressures of increasing human activities and global climate change, as well as in the context of being preyed upon by other predatory animals at the bottom of the water, the survival of freshwater benthic animals has been severely threatened.

[0003] Existing methods for restoring the ecological environment of benthic animals usually involve putting artificially made reefs into specific waters. The benthic animals in this water area enter the reefs to survive, and the reefs can provide a relatively safe living environment for the benthic animals. Since in order to avoid some larger predatory animals from preying on benthic animals, the entrances and exits on the surface of the reefs are usually set relatively small. However, after long-term use of the reefs, some shellfish and other organisms at the bottom of the water will attach to the positions of the entrances and exits of the reefs, and the shellfish will also remain attached to the entrance and exit positions after death. When these organisms accumulate in large numbers, they will block the entrances and exits, thus affecting other benthic animals from entering and leaving the reefs. Summary of the Invention

[0004] The purpose of the present invention is to provide an ecological reef for the ecological restoration of benthic animals to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: An ecological reef for the ecological restoration of benthic animals, including a reef body. There are three inner cavities in the reef body, and a plurality of entrances and exits are fixedly connected to the reef body at the positions of the inner cavities. The plurality of entrances and exits are arranged in a circumferential array on the reef body, and each entrance and exit is communicated with the inner cavity. A cleaning mechanism is provided on the entrance and exit, and the cleaning mechanism is used to clean the shellfish organisms attached to the inner wall of the entrance and exit and causing blockage of the entrance and exit from the inner wall of the entrance and exit. A driving mechanism is provided on the reef body, and the driving mechanism is used to drive the cleaning mechanisms on all the entrances and exits to operate. A discharging mechanism is provided in the reef body, and the discharging mechanism is used to discharge the blockage residues remaining in the entrance and exit after being cleaned by the cleaning mechanism when the driving mechanism operates.

[0006] Preferably, the cleaning mechanism includes a rotating ring sleeved on the inlet and outlet and rotatably connected to the inlet and outlet; four scraping plates are arranged in the inlet and outlet, the four scraping plates are circumferentially arrayed in the inlet and outlet and all four scraping plates are in contact with the inner wall of the inlet and outlet; all four scraping plates are fixedly connected to the rotating ring.

[0007] Preferably, the driving mechanism includes a first sliding frame located above the reef body and slidably connected to the reef body; a plurality of connecting frames are fixedly connected to the first sliding frame, and the number of the connecting frames is the same as the number of inlets and outlets on one inner cavity; a first driving rod is rotatably connected to the connecting frame at three inner cavity positions; a rotating mechanism is arranged on the rotating ring, and the rotating mechanism is used for driving the rotating ring to rotate.

[0008] Preferably, the rotating mechanism includes four second driving rods, the four second driving rods are circumferentially arrayed on the rotating ring and all four second driving rods are fixedly connected to the rotating ring; the first driving rod is located below the side of the rotating ring, and two of the four second driving rods are located directly above the first driving rod.

[0009] Preferably, a first stopper is fixedly connected to the first driving rod, a second stopper is arranged above the first stopper, the first stopper is in contact with the second stopper and the second stopper is fixedly connected to the connecting frame; a stop rod is arranged at the diagonal position of the rotating ring relative to the first driving rod, the stop rod is slidably connected to the reef body and the stop rod is in contact with the second driving rod located obliquely above the rotating ring.

[0010] Preferably, the discharging mechanism includes a drainage cylinder located at the center of the reef body and fixedly connected to the reef body; four partition plates are fixedly connected in the drainage cylinder, and the three inner cavities formed by the four partition plates are respectively flush with the three inner cavities in the reef body; four drainage ports are respectively arranged on the drainage cylinder at the outer side of each inner cavity, the drainage ports are communicated with the inner cavities in the drainage cylinder and sealing covers are arranged on the drainage ports, the sealing covers are rotatably connected to the drainage ports; a drainage mechanism is arranged in the inner cavity of the drainage cylinder, and the drainage mechanism is used for discharging the water in the inner cavity of the drainage cylinder to the inner cavity of the reef body through the four drainage ports.

[0011] Preferably, the drainage mechanism includes three drainage plates respectively located in the three inner cavities of the drainage cylinder; the drainage plates are in clearance fit with the inner wall of the drainage cylinder and the drainage plates are made of solid metal; a second sliding frame is arranged in the drainage cylinder, the second sliding frame is slidably connected to the upper three partition plates and the second sliding frame is fixedly connected to the three drainage plates at the same time; an opening and closing mechanism is arranged in the inner cavity of the drainage cylinder, and the opening and closing mechanism is used for driving the four sealing covers corresponding to the inner cavity to open and close.

[0012] Preferably, the opening and closing mechanism includes four fixed rods. The four fixed rods are circumferentially and arrayedly distributed in the inner cavity of the drainage cylinder, and the upper and lower ends of the fixed rods are respectively fixedly connected to the upper and lower partitions; the drainage plate is in clearance fit with the four fixed rods; a sliding ring is slidably connected to the fixed rod, a connecting rod is rotatably connected to the sliding ring, and one end of the connecting rod away from the sliding ring is rotatably connected to the sealing cover; a first clamping block is rotatably connected to the sliding ring on the side away from the connecting rod, a second clamping block is provided above the first clamping block, and the second clamping block is fixedly connected to the fixed rod; a first pulling rope is fixedly connected to the position of the first clamping block away from the clamping end, and the bottom end of the first pulling rope is fixedly connected to the drainage plate; a torsion spring is provided at the position where the first clamping block is connected to the sliding ring.

[0013] Preferably, a water pipe is provided in the drainage cylinder. The water pipe penetrates through the upper three partitions and the three drainage plates, and the bottom end of the water pipe is located between the lower partition and the lower drainage plate; the water pipe is fixedly connected to the partition and is in clearance fit with the drainage plate; an opening is provided at the position between the drainage plate and the partition on the water pipe.

[0014] Preferably, a sealing plate is fixedly connected to the bottom of the first sliding frame. The sealing plate is attached to the upper end of the water pipe; the second sliding frame is in clearance fit with the sealing plate; a second pulling rope is fixedly connected to the upper end of the first sliding frame. The upper end of the second pulling rope is fixedly connected to a pull ring, and a floating float is sleeved on the second pulling rope. The floating float is in clearance fit with the second pulling rope.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, the driving mechanism drives the cleaning mechanism and the discharging mechanism to operate. The cleaning mechanism cleans the shellfish and other blockages attached to the inner wall of the inlet and outlet from the inner wall of the inlet and outlet, and then the discharging mechanism discharges these cleaned things from the inlet and outlet, so as to achieve the effect of automatically cleaning the blockages in the inlet and outlet of the reef body, effectively ensuring that benthic animals can enter and exit the reef body more smoothly, and improving the effect of the ecological restoration of benthic animals.

[0016] When the second sliding frame drives the three drainage plates connected thereto to move upward in the present invention, the drainage plates will squeeze the water in the inner cavity of the drainage cylinder. After being squeezed, the water in the inner cavity of the drainage cylinder will push open the sealing cover and be discharged into the inner cavity of the reef body through the drainage port. The water in the inner cavity of the reef body will be discharged through the inlet and outlet, and the discharged water will discharge the blockages remaining in the inlet and outlet together. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is Figure 1 an enlarged schematic diagram of A in Figure 3 Schematic diagram of the disassembly structure of the present invention; Figure 4 Schematic cross-sectional structure diagram of the reef body in the present invention; Figure 5 Schematic cross-sectional structure diagram of the drainage cylinder in the present invention; Figure 6 is Figure 5 Schematic diagram of the disassembly structure; Figure 7 is Figure 6 Schematic diagram of the disassembly structure; Figure 8 is Figure 7 Enlarged structure diagram of B in Figure 9 is Figure 7 Enlarged structure diagram of C in Figure 10 Schematic structure diagram of the driving mechanism in the present invention.

[0018] In the attached drawings: 1. Reef body; 2. Inlet and outlet; 3. Rotating ring; 4. Scraper; 5. First sliding frame; 6. Connecting frame; 7. First driving rod; 8. Second driving rod; 9. First stop block; 10. Second stop block; 11. Stop rod; 12. Drainage cylinder; 13. Partition board; 14. Drainage port; 15. Sealing cover; 16. Drainage plate; 17. Second sliding frame; 18. Fixed rod; 19. Sliding ring; 20. Connecting rod; 21. First clamping block; 22. Second clamping block; 23. First pulling rope; 24. Water pipe; 25. Sealing plate; 26. Second pulling rope; 27. Pulling ring; 28. Floating buoy. Specific implementation manners

[0019] Please refer to Figures 1 - 10 , the present invention provides a technical solution: An ecological fish reef for benthic animal ecological restoration, including a reef body 1, the reef body 1 is provided with three inner cavities, and a plurality of inlets and outlets 2 are fixedly connected to the reef body 1 at the positions of the inner cavities. The plurality of inlets and outlets 2 are arranged in a circumferential array on the reef body 1, and each inlet and outlet 2 is communicated with the inner cavity; A cleaning mechanism is provided on the inlet and outlet 2. The cleaning mechanism is used to clean the shellfish organisms attached to the inner wall of the inlet and outlet 2 and blocking the inlet and outlet 2 from the inner wall of the inlet and outlet 2; A driving mechanism is provided on the reef body 1. The driving mechanism is used to drive the cleaning mechanisms on all the inlets and outlets 2 to operate; A discharging mechanism is provided in the reef body 1. The discharging mechanism is used to discharge the blockages remaining in the inlet and outlet 2 cleaned by the cleaning mechanism when the driving mechanism operates; During operation, after placing the reef body 1 in the target water area, benthic animals in this water area will enter the inner cavity of the reef body 1 through multiple inlets and outlets 2 on the reef body 1, thus providing a safe living environment for benthic animals. However, some shellfish will attach to the inner wall of the inlets and outlets 2 and still remain attached to the inner wall of the inlets and outlets 2 after the shellfish die. When there is a large accumulation of these animals, it will cause blockage to the inlets and outlets 2. At this time, the driving mechanism is activated, and the driving mechanism will drive the cleaning mechanism and the discharging mechanism to operate. The cleaning mechanism will clean the shellfish and other blockages attached to the inner wall of the inlets and outlets 2 from the inner wall of the inlets and outlets 2, and then the discharging mechanism will discharge these cleaned things out of the inlets and outlets 2, thereby achieving the effect of automatically cleaning the blockages in the inlets and outlets 2 of the reef body 1, effectively ensuring that benthic animals can enter and exit the reef body 1 more smoothly, and improving the effect of ecological restoration of benthic animals.

[0020] As Figures 1 - 2 shown, as a further solution of the present invention, the cleaning mechanism includes a rotating ring 3, the rotating ring 3 is sleeved on the inlet and outlet 2 and the rotating ring 3 is rotatably connected to the inlet and outlet 2; four scraping plates 4 are arranged in the inlet and outlet 2, the four scraping plates 4 are circumferentially and arrayedly distributed in the inlet and outlet 2 and the four scraping plates 4 are all in contact with the inner wall of the inlet and outlet 2; the four scraping plates 4 are all fixedly connected to the rotating ring 3; During operation, when the rotating ring 3 is rotated by 90 degrees, the rotating ring 3 can drive the four scraping plates 4 connected thereto to move to the position of the next scraping plate 4 respectively, and the four scraping plates 4 can scrape the entire inner wall of the inlet and outlet 2 once; under the action of the four scraping plates 4, the shellfish and other blockages attached to the inner wall of the inlet and outlet 2 can be scraped off.

[0021] As Figures 1 - 3 shown, as a further solution of the present invention, the driving mechanism includes a first sliding frame 5, the first sliding frame 5 is located above the reef body 1 and the first sliding frame 5 is slidably connected to the reef body 1; a plurality of connecting frames 6 are fixedly connected to the first sliding frame 5, and the number of the connecting frames 6 is the same as the number of the inlets and outlets 2 on one inner cavity; a first driving rod 7 is rotatably connected to the connecting frame 6 at three inner cavity positions; a rotating mechanism is arranged on the rotating ring 3, and the rotating mechanism is used to drive the rotating ring 3 to rotate; The rotating mechanism includes four second driving rods 8, the four second driving rods 8 are circumferentially and arrayedly distributed on the rotating ring 3 and the four second driving rods 8 are all fixedly connected to the rotating ring 3; the first driving rod 7 is located below the side of the rotating ring 3 and two of the second driving rods 8 are located directly above the first driving rod 7; A first stop block 9 is fixedly connected to the first driving rod 7. A second stop block 10 is provided above the first stop block 9. The first stop block 9 is in contact with the second stop block 10, and the second stop block 10 is fixedly connected to the connecting frame 6. A stop rod 11 is provided at a position diagonal to the first driving rod 7 on the rotating ring 3. The stop rod 11 is slidably connected to the reef body 1 and the stop rod 11 is in contact with the second driving rod 8 located obliquely above the rotating ring 3. During operation, when driving the first sliding frame 5 to move upward, the first sliding frame 5 will drive a plurality of connecting frames 6 to move upward simultaneously. The connecting frames 6 will drive the three first driving rods 7 connected thereto to move upward. During the upward movement of the first driving rod 7, it will contact and push a second driving rod 8 in contact therewith to move upward. When the second driving rod 8 moves upward, it will drive the rotating ring 3 connected thereto to rotate. When the first driving rod 7 moves upward to a position where it disengages from the second driving rod 8, the rotating ring 3 just rotates ninety degrees. When driving the first sliding frame 5 to slide downward and reset, the first driving rod 7 will move downward, and during the downward movement of the first driving rod 7, it will contact the second driving rod 8 located below it. At this time, since one of the second driving rods 8 is blocked by the stop rod 11, the rotating ring 3 cannot rotate in the reverse direction. Therefore, the second driving rod 8 remains stationary. When the first driving rod 7 contacts the second driving rod 8, the first driving rod 7 will rotate upward relative to the connecting frame 6. When the first driving rod 7 rotates upward by a certain angle, the first driving rod 7 will cross over the second driving rod 8, and after the first driving rod 7 crosses over the second driving rod 8, the first driving rod 7 will automatically reset under the action of its own gravity.

[0022] As Figures 4 - 10 shown, as a further solution of the present invention, the discharging mechanism includes a drainage cylinder 12. The drainage cylinder 12 is located at the central position inside the reef body 1 and the drainage cylinder 12 is fixedly connected to the reef body 1. Four partition plates 13 are fixedly connected inside the drainage cylinder 12. The three inner cavities formed by the four partition plates 13 are respectively flush with the three inner cavities inside the reef body 1. Four drainage ports 14 are opened at the outer side position of each inner cavity on the drainage cylinder 12. The drainage ports 14 are communicated with the inner cavities inside the drainage cylinder 12, and a sealing cover 15 is provided on the drainage ports 14. The sealing cover 15 is rotatably connected to the drainage ports 14. A drainage mechanism is provided inside the inner cavity of the drainage cylinder 12. The drainage mechanism is used to drain the water inside the inner cavity of the drainage cylinder 12 through the four drainage ports 14 into the inner cavity of the reef body 1. The drainage mechanism includes three drainage plates 16. The three drainage plates 16 are respectively located in the three inner cavities inside the drainage cylinder 12. The drainage plates 16 are in clearance fit with the inner wall of the drainage cylinder 12 and the drainage plates 16 are made of solid metal material. A second sliding frame 17 is provided inside the drainage cylinder 12. The second sliding frame 17 is slidably connected to the three partition plates 13 on the upper side and the second sliding frame 17 is fixedly connected to the three drainage plates 16 at the same time. An opening and closing mechanism is provided inside the inner cavity of the drainage cylinder 12. The opening and closing mechanism is used to drive the four sealing covers 15 corresponding to this inner cavity to open and close. The opening and closing mechanism includes four fixed rods 18. The four fixed rods 18 are distributed in a circular array in the inner cavity of the drainage cylinder 12, and the upper and lower ends of the fixed rods 18 are respectively fixedly connected to the upper and lower partitions 13. The drainage plate 16 is in clearance fit with the four fixed rods 18. A sliding ring 19 is slidably connected to the fixed rod 18. A connecting rod 20 is rotatably connected to the sliding ring 19. One end of the connecting rod 20 away from the sliding ring 19 is rotatably connected to the sealing cover 15. A first latch 21 is rotatably connected to the sliding ring 19 on the side away from the connecting rod 20. A second latch 22 is provided above the first latch 21. The second latch 22 is fixedly connected to the fixed rod 18. A first pulling rope 23 is fixedly connected to the position of the first latch 21 away from the engaging end. The bottom end of the first pulling rope 23 is fixedly connected to the drainage plate 16. A torsion spring is provided at the position where the first latch 21 is connected to the sliding ring 19. A water pipe 24 is provided in the drainage cylinder 12. The water pipe 24 penetrates through the upper three partitions 13 and the three drainage plates 16. The bottom end of the water pipe 24 is located between the lower partition 13 and the lower drainage plate 16. The water pipe 24 is fixedly connected to the partition 13 and is in clearance fit with the drainage plate 16. An opening is provided at the position of the water pipe 24 between the drainage plate 16 and the partition 13. A sealing plate 25 is fixedly connected to the bottom of the first sliding frame 5. The sealing plate 25 is in contact with the upper end of the water pipe 24. The second sliding frame 17 is in clearance fit with the sealing plate 25. A second pulling rope 26 is fixedly connected to the upper end of the first sliding frame 5. The upper end of the second pulling rope 26 is fixedly connected to a pulling ring 27, and a floating buoy 28 is sleeved on the second pulling rope 26. The floating buoy 28 is in clearance fit with the second pulling rope 26. During operation, by pulling the pulling ring 27 upward, the pulling ring 27 pulls the first sliding frame 5 upward through the second pulling rope 26. The first sliding frame 5 will first drive the first driving rod 7 to move upward through the connecting frame 6. The first driving rod 7 will then drive the rotating ring 3 to rotate through the second driving rod 8 to complete the cleaning of the attachments on the inlet and outlet 2. While the first sliding frame 5 moves upward, the first sliding frame 5 will drive the sealing plate 25 to move upward, and the sealing plate 25 will then separate from the upper end of the water pipe 24. When the first driving rod 7 moves upward to the position where it disengages from the second driving rod 8, at this time, the sealing plate 25 just moves to the position where it is in contact with the second sliding frame 17. As the first sliding frame 5 continues to move upward, the second sliding frame 17 also starts to move upward at this time. The second sliding frame 17 drives the three drainage plates 16 connected to it to move upward. The drainage plates 16 will then start to squeeze the water in the inner cavity of the drainage cylinder 12. The water in the inner cavity of the drainage cylinder 12 will be squeezed and will push open the sealing cover 15, and will be discharged into the inner cavity of the reef body 1 through the drain port 14. The water in the inner cavity of the reef body 1 will be discharged through the inlet and outlet 2, and the discharged water will discharge the blockage remaining in the inlet and outlet 2 together. After the sealing cover 15 is pushed open, the sealing cover 15 will start to rotate upward. When the sealing cover 15 rotates upward, it will pull the sliding ring 19 to slide upward through the connecting rod 20. The sliding ring 19 drives the first clamping block 21 to move upward. When the sealing cover 15 is completely opened, the first clamping block 21 just moves to the position where it engages with the second clamping block 22; When the drainage plate 16 moves to a position close to the drainage port 14 inside the inner cavity of the drainage cylinder 12, the pull ring 27 can be released at this time, and the drainage plate 16 will automatically fall; when the drainage plate 16 falls, it will suck the water inside the reef body 1 back into the inner cavity of the drainage cylinder 12 through the drainage port 14 again; when the drainage plate 16 falls to the bottom position inside the inner cavity, at this time the drainage plate 16 just straightens the first pulling rope 23 and pulls the first clamping block 21 to rotate through the first pulling rope 23. When the first clamping block 21 rotates, it will disengage from the second clamping block 22. At this time, the sliding ring 19 will start to fall, and the sealing cover 15 will gradually close. After the sealing cover 15 closes, it can effectively prevent benthic animals inside the reef body 1 from entering the inner cavity of the drainage cylinder 12.

Claims

1. An ecological fish reef for benthic animal ecological restoration, comprising a reef body (1), characterized in that: The reef body (1) is provided with three inner cavities, and a plurality of inlets and outlets (2) are fixedly connected to the reef body (1) at the positions of the inner cavities. The plurality of inlets and outlets (2) are circumferentially and arrayedly distributed on the reef body (1), and each inlet and outlet (2) communicates with the inner cavity; A cleaning mechanism is provided on the inlet and outlet (2). The cleaning mechanism is used to clean the shellfish organisms attached to the inner wall of the inlet and outlet (2) and causing blockage of the inlet and outlet (2) from the inner wall of the inlet and outlet (2); A driving mechanism is provided on the reef body (1). The driving mechanism is used to drive the cleaning mechanisms on all the inlets and outlets (2) to operate; A discharging mechanism is provided in the reef body (1). The discharging mechanism is used to discharge the blockages remaining in the inlets and outlets (2) cleaned by the cleaning mechanism when the driving mechanism operates.

2. The ecological fish reef for benthic animal ecological restoration according to claim 1, wherein: The cleaning mechanism includes a rotating ring (3). The rotating ring (3) is sleeved on the inlet and outlet (2), and the rotating ring (3) is rotatably connected to the inlet and outlet (2); Four scraping plates (4) are provided in the inlet and outlet (2). The four scraping plates (4) are circumferentially and arrayedly distributed in the inlet and outlet (2), and the four scraping plates (4) are all in contact with the inner wall of the inlet and outlet (2); The four scraping plates (4) are all fixedly connected to the rotating ring (3).

3. The ecological fish reef for benthic animal ecological restoration according to claim 2, wherein: The driving mechanism includes a first sliding frame (5). The first sliding frame (5) is located above the reef body (1), and the first sliding frame (5) is slidably connected to the reef body (1); A plurality of connecting frames (6) are fixedly connected to the first sliding frame (5). The number of the connecting frames (6) is the same as the number of the inlets and outlets (2) on one inner cavity; A first driving rod (7) is rotatably connected to the connecting frame (6) at the positions of the three inner cavities; A rotating mechanism is provided on the rotating ring (3). The rotating mechanism is used to drive the rotating ring (3) to rotate.

4. The ecological fish reef for benthic animal ecological restoration according to claim 3, characterized in that: The rotating mechanism includes four second driving rods (8). The four second driving rods (8) are circumferentially and arrayedly distributed on the rotating ring (3), and the four second driving rods (8) are all fixedly connected to the rotating ring (3); The first driving rod (7) is located below the side of the rotating ring (3), and two of the second driving rods (8) are located directly above the first driving rod (7).

5. The ecological fish reef for benthic animal ecological restoration according to claim 4, wherein: A first stop block (9) is fixedly connected to the first driving rod (7). A second stop block (10) is provided above the first stop block (9). The first stop block (9) is in contact with the second stop block (10), and the second stop block (10) is fixedly connected to the connecting frame (6); A stop rod (11) is provided at the diagonal position of the rotating ring (3) with respect to the first driving rod (7). The stop rod (11) is slidably connected to the reef body (1), and the stop rod (11) is in contact with the second driving rod (8) located obliquely above the rotating ring (3).

6. The ecological fish reef for benthic animal ecological restoration according to claim 3, characterized in that: The discharging mechanism includes a drainage cylinder (12) which is located at the central position inside the reef body (1) and is fixedly connected to the reef body (1); four partition plates (13) are fixedly connected inside the drainage cylinder (12), and the three inner cavities formed by the four partition plates (13) are respectively flush with the three inner cavities inside the reef body (1); four drainage ports (14) are opened at the outer side of each inner cavity on the drainage cylinder (12), the drainage ports (14) are communicated with the inner cavities inside the drainage cylinder (12), and a sealing cover (15) is arranged on the drainage ports (14), and the sealing cover (15) is rotatably connected to the drainage ports (14); a drainage mechanism is arranged inside the inner cavity of the drainage cylinder (12), and the drainage mechanism is used for draining the water inside the inner cavity of the drainage cylinder (12) to the inner cavity of the reef body (1) through the four drainage ports (14).

7. The ecological fish reef for benthic animal ecological restoration according to claim 6, wherein: The drainage mechanism includes three drainage plates (16), and the three drainage plates (16) are respectively located in the three inner cavities inside the drainage cylinder (12); the drainage plates (16) are in clearance fit with the inner wall of the drainage cylinder (12) and the drainage plates (16) are made of solid metal material; a second sliding frame (17) is arranged inside the drainage cylinder (12), the second sliding frame (17) is slidably connected to the upper three partition plates (13) and the second sliding frame (17) is fixedly connected to the three drainage plates (16) at the same time; an opening and closing mechanism is arranged inside the inner cavity of the drainage cylinder (12), and the opening and closing mechanism is used for driving the four sealing covers (15) corresponding to this inner cavity to open and close.

8. The ecological fish reef for benthic animal ecological restoration according to claim 7, characterized in that: The opening and closing mechanism includes four fixed rods (18), the four fixed rods (18) are distributed in a circumferential array inside the inner cavity of the drainage cylinder (12), and the upper and lower ends of the fixed rods (18) are respectively fixedly connected to the upper and lower partition plates (13); the drainage plates (16) are in clearance fit with the four fixed rods (18); a sliding ring (19) is slidably connected to the fixed rods (18), a connecting rod (20) is rotatably connected to the sliding ring (19), and one end of the connecting rod (20) far away from the sliding ring (19) is rotatably connected to the sealing cover (15); a first clamping block (21) is rotatably connected to the sliding ring (19) at the side far away from the connecting rod (20), a second clamping block (22) is arranged above the first clamping block (21), and the second clamping block (22) is fixedly connected to the fixed rod (18); a first pulling rope (23) is fixedly connected to the position of the first clamping block (21) far away from the clamping end, and the bottom end of the first pulling rope (23) is fixedly connected to the drainage plate (16); a torsion spring is arranged at the position of the first clamping block (21) at the connection with the sliding ring (19).

9. The ecological fish reef for benthic animal ecological restoration according to claim 7, characterized in that: A water pipe (24) is arranged inside the drainage cylinder (12), the water pipe (24) penetrates through the upper three partition plates (13) and the three drainage plates (16), and the bottom end of the water pipe (24) is located between the lower partition plate (13) and the lower drainage plate (16); the water pipe (24) is fixedly connected to the partition plate (13) and the water pipe (24) is in clearance fit with the drainage plate (16); an opening is arranged at the position of the water pipe (24) between the drainage plate (16) and the partition plate (13).

10. The ecological fish reef for benthic animal ecological restoration according to claim 7, characterized in that: A sealing plate (25) is fixedly connected to the bottom of the first sliding frame (5), and the sealing plate (25) is attached to the upper end of the water pipe (24); the second sliding frame (17) is in clearance fit with the sealing plate (25); a second pulling rope (26) is fixedly connected to the upper end of the first sliding frame (5), a pulling ring (27) is fixedly connected to the upper end of the second pulling rope (26), and a floating buoy (28) is sleeved on the second pulling rope (26), and the floating buoy (28) is in clearance fit with the second pulling rope (26).

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