Artificial fish reef and throwing method based on combined artificial fish reef

Abstract

The invention relates to the technical field of artificial fish reefs, and discloses an artificial fish reef and a throwing method based on a combined artificial fish reef, the artificial fish reef comprises a base, the base is provided with an inner reef body, an outer reef body, an intercepting rod and a channel dredging mechanism, the inner reef body is movably arranged in the outer reef body, and the outer reef body is fixedly installed on the upper surface of the base; according to the artificial fish reef, by arranging the outer reef body, the inner reef body and the intercepting rods, three layers of fish reef chambers are formed and used for growth of fish fries and juvenile fishes of different sizes, by arranging the inner reef body, the inner reef body can move up and down in the outer reef body, and a push plate and an insertion rod are driven to clean an outer reef access channel and an inner reef access channel; when the inner reef body moves, the lifting pressing base drives the intercepting blades to rotate, the situation that algae, shellfish and other organisms breed and grow among the outer reef access channel, the inner reef access channel and the intercepting rods to block the channels is avoided, cleaning of the artificial fish reef is facilitated, and the passing performance of the artificial fish reef is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of artificial fish reefs, in particular to an artificial fish reef and a method for placing the combined artificial fish reef. Background Art

[0002] Artificial reefs are artificial structures set up in the sea to improve the ecological environment of the sea and provide a place for fish and other marine life to reproduce, grow, forage and shelter from enemies, so as to achieve the purpose of protecting and increasing fishery resources and increasing fish catches.

[0003] Chinese patent CN113179985B discloses a tower-type artificial fish reef and a cultivation method for breeding and releasing seedlings in a marine ranch. By using mesh frames with different mesh specifications on different tower layers of the tower-type artificial fish reef, fry and young fish of different sizes are protected. However, in the marine ranch, seaweed and shellfish can cling to the mesh frames and grow. As the artificial fish reef is used for a longer time, the seaweed and shellfish will gradually clog the mesh holes, and the feces discharged by the fish will also clog the mesh holes. Even if the mesh frame is pulled for cleaning, it is difficult to effectively clean out the impurities that clog the mesh holes because the seaweed and feces can adhere to the pores of the mesh holes, making it gradually impossible for the fish to pass through the mesh frame. In addition, it is also difficult to pull the mesh frame underwater for cleaning. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an artificial fish reef and a method for deploying a combined artificial fish reef, which has the advantages of quickly cleaning the passages between different fish reef chambers and preventing large juvenile fish from entering the fish reef chamber where small juvenile fish feed, thereby solving the problems mentioned in the above background technology.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0008] An artificial fish reef comprises a base, on which an inner reef body, an outer reef body, an interception rod and a channel dredging mechanism are arranged, wherein the inner reef body is movably arranged inside the outer reef body, the outer reef body is fixedly mounted on the upper surface of the base, the interception rod is rotatably mounted on the upper surface of the base, and the interception rod is arranged on the outer side of the outer reef body, the side wall of the inner reef body is provided with an inner reef inlet and outlet channel, and the side wall of the outer reef body is provided with an outer reef inlet and outlet channel;

[0009] The interception rod comprises a rotating shaft and interception blades, the lower end of the rotating shaft is rotatably mounted on a base, and the interception blades on adjacent interception rods are staggered;

[0010] The upper end of the inner reef body is connected to a rope, and the other end of the rope is installed with a buoy;

[0011] The channel dredging mechanism includes an inner reef channel dredging component, an outer reef channel dredging component and a rotary drive component. The inner reef channel dredging component includes an insertion rod, which is fixedly mounted on the outer reef body, and one end of the insertion rod is slidably plugged into the inner reef inlet and outlet channel. When the inner reef body moves up and down, the inner wall of the inner reef inlet and outlet channel slides and rubs against the insertion rod. The outer reef channel dredging component includes a push plate, which is slidably mounted inside the outer reef body. When the inner reef body moves up and down, the push plate is pushed to slide and rub against the inner wall of the outer reef inlet and outlet channel. The rotary drive component includes a lifting and lowering pressure seat, which is slidably mounted on the base, and drives the rotating shaft to rotate when the lifting and lowering pressure seat moves up and down. The inner reef body is placed on the upper surface of the lifting and lowering pressure seat.

[0012] Preferably, the outer surface of the outer reef body is arranged in a prism shape, the inclination angle of the outer side wall of the inner reef body is the same as the inclination angle of the inner side wall of the outer reef body, the outer reef channel dredging assembly also includes a slide rod, a connecting plate, a mounting plate and a reset spring, the outer reef body is provided with a slide hole, the slide holes are respectively arranged on both sides of the outer reef inlet and outlet channel, the slide rod is slidably inserted in the inside of the slide hole, the two ends of the connecting plate are respectively fixedly connected to the slide rod, the push plate is fixedly installed on one end of the connecting plate facing the outer reef inlet and outlet channel, the mounting plate is fixedly installed on the other end of the connecting plate, one end of the reset spring is fixedly connected to the mounting plate, and the other end of the reset spring is fixedly connected to the inner side wall of the outer reef body.

[0013] Preferably, a roller is rotatably mounted on one end of the slide rod away from the slide hole, the roller abuts against the outer wall of the inner reef body, and the end of the slide rod away from the roller is always in contact with the inner wall of the slide hole.

[0014] Preferably, the rotating shafts are distributed in a circular array on the outside of the base, the spacing between adjacent rotating shafts is not less than half the length of the intercepting blade, the rotation directions of adjacent rotating shafts are opposite, a protrusion is provided in the middle position of the upper surface of the base, a through opening is opened in the middle position of the protrusion, the lifting and lowering pressure seat is slidably installed inside the through opening, and an inlet and outlet hole is opened at the bottom of the inner reef body, and the inlet and outlet hole is arranged on the outside of the protrusion.

[0015] Preferably, the rotation drive assembly also includes a slide plate, a lifting and lowering rotating plate, a fixed shaft, a rotating plate and a supporting spring. A guide plate is fixedly installed inside the base. The slide plates are distributed in a circular array inside the base, and the slide plates are slidably connected to the guide plates. One end of the lifting and lowering rotating plate is rotatably connected to the lower surface of the lifting and lowering pressure seat, and the other end of the lifting and lowering rotating plate is rotatably connected to one end of the slide plate. The fixed shaft is fixedly installed on the other end of the slide plate, one end of the rotating plate is fixedly connected to the rotating shaft, and a sliding hole is provided at the other end of the rotating plate, the fixed shaft is slidably connected to two adjacent sliding holes, the number of the rotating shafts is twice the number of the slide plates, and the two ends of the supporting spring are respectively fixedly connected to the inner bottom wall of the base and the lower surface of the lifting and lowering pressure seat.

[0016] Preferably, a cutoff plate is fixedly mounted on the outer side wall of the outer reef body, and the cutoff plate is arranged above the outer reef inlet and outlet channel.

[0017] Preferably, one end of the insertion rod extends to the outside of the outer reef body, and a blocking rod is fixedly installed on the outer wall of the outer reef body. A support rod is fixedly installed on the upper surface of the base, and the upper end of the support rod is fixedly connected to the bottom wall of the outer reef body. Outlets are opened at both the upper and lower ends of the outer reef body.

[0018] Preferably, the spacing between adjacent insertion rods is equal to the spacing between interception blades, the spacing between adjacent blocking rods is equal to the spacing between interception blades, and the spacing between the interception blades is greater than the diameter of the outer reef inlet and outlet channel.

[0019] Preferably, the length of the support rod and the spacing between adjacent support rods are not greater than the diameter of the outer reef inlet and outlet channel, the difference between the outer diameter and the inner diameter of the outlet is not greater than the diameter of the outer reef inlet and outlet channel, and the diameter of the outer reef inlet and outlet channel is greater than the width of the inner reef inlet and outlet channel.

[0020] The present invention also discloses a method for placing a combined artificial fish reef, the specific steps of which are:

[0021] The artificial reef is transported to the deployment location by ship, one end of the rope is connected to the top of the inner reef body, and then the hook of the crane is used to hook and lift the artificial reef;

[0022] Control the crane's cable to descend, and slowly place the artificial reef into the water body, so that the lower surface of the base of the artificial reef contacts the bottom mud after it sinks into the water body;

[0023] After the artificial reef is placed, cut off the excess rope, leaving only the length of the rope that can extend to the water surface, and install the buoy at the other end of the rope.

[0024] (III) Beneficial effects

[0025] Compared with the prior art, the present invention provides an artificial fish reef and a method for placing a combined artificial fish reef, which has the following beneficial effects:

[0026] 1. The artificial fish reef forms a three-layer fish reef chamber by arranging an outer reef body, an inner reef body and an intercepting rod, which is used for the growth of fry and young fish of different sizes. The inner reef body can move up and down inside the outer reef body, driving the push plate and the plug rod to clean the outer reef entrance and exit channel and the inner reef entrance and exit channel. At the same time, when the inner reef body moves, the lifting and lowering pressure seat drives the intercepting blade to rotate, so as to prevent seaweed, shellfish and other organisms from breeding and growing between the outer reef entrance and exit channel, the inner reef entrance and exit channel and the intercepting rod, thereby blocking the channel, facilitating the cleaning of the artificial fish reef, ensuring the passing performance of the artificial fish reef, allowing fish of suitable sizes to smoothly enter and exit the corresponding fish reef chamber, and protecting fry and young fish of different sizes to grow safely in the corresponding fish reef chamber.

[0027] 2. The artificial fish reef is provided with an inner reef channel dredging component, an outer reef channel dredging component and a rotary drive component. When the inner reef body is pulled upward, the inner reef inlet and outlet channel opened on the inner reef body rubs against the insertion rod fixed on the outer reef body, thereby cleaning the inner reef inlet and outlet channel. When the inner reef body moves, it pushes the push plate to move, so that the push plate passes through the outer reef inlet and outlet channel, thereby scraping off impurities adhered to the inner wall of the outer reef inlet and outlet channel. In addition, when the lifting and lowering pressure seat moves up and down, it drives the rotating shaft to rotate, so that the intercepting blades on adjacent intercepting rods move alternately with each other, which can prevent the intervals between the intercepting blades from being completely blocked by impurities.

[0028] 3. The artificial fish reef sets a plug rod and a blocking rod between the intercepting rod and the outer reef body, so that larger fish cannot enter between the intercepting rod and the outer reef body from above, thereby preventing large fish from entering the artificial fish reef to prey on young fish and fry. By setting different widths of the passages leading to the three-layer fish reef rooms, large young fish cannot enter the fish room where small young fish live, thereby preventing large young fish from competing with small young fish for food. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is one of the three-dimensional structural schematic diagrams of the artificial fish reef of the present invention;

[0030] Figure 2 It is a schematic diagram of the three-dimensional structure decomposition of the artificial fish reef of the present invention;

[0031] Figure 3 This is one of the three-dimensional structural cross-sectional views of the artificial fish reef of the present invention;

[0032] Figure 4 For the present invention Figure 3 A schematic diagram of the enlarged local structure at point A in the middle;

[0033] Figure 5The second is a cross-sectional view of the three-dimensional structure of the artificial fish reef of the present invention;

[0034] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the local structure at B in the middle;

[0035] Figure 7 The three-dimensional structure of the artificial reef of the present invention is cut away Figure 3 ;

[0036] Figure 8 It is a schematic diagram of the partial structural decomposition of the artificial fish reef of the present invention.

[0037] In the figure:

[0038] 1. base; 11. protrusion; 12. opening; 13. guide plate;

[0039] 2. Inner reef body; 21. Inner reef access passage; 22. Access hole;

[0040] 3. Outer reef body; 31. Outer reef inlet and outlet passage; 32. Slide hole; 33. Cut-off plate; 34. Baffle bar; 35. Support bar; 36. Exit;

[0041] 4. interception rod; 41. rotating shaft; 42. interception blade;

[0042] 5. Rope;

[0043] 6. Buoy;

[0044] 7. Inner reef channel dredging assembly; 71. Insertion rod;

[0045] 8. Outer reef channel dredging assembly; 81. Push plate; 82. Slide rod; 83. Roller; 84. Connecting plate; 85. Mounting plate; 86. Return spring;

[0046] 9. Rotation drive assembly; 91. Lifting and lowering pressure seat; 92. Slide plate; 93. Lifting and lowering rotating plate; 94. Fixed shaft; 95. Rotating plate; 96. Sliding hole; 97. Support spring. DETAILED DESCRIPTION

[0047] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1

[0049] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 The present invention provides an artificial fish reef, comprising a base 1, on which an inner reef body 2, an outer reef body 3, an interception rod 4 and a channel dredging mechanism are arranged, the inner reef body 2 is movably arranged inside the outer reef body 3, the outer reef body 3 is fixedly installed on the upper surface of the base 1, the interception rod 4 is rotatably installed on the upper surface of the base 1, and the interception rod 4 is arranged on the outside of the outer reef body 3, the side wall of the inner reef body 2 is provided with an inner reef inlet and outlet channel 21, and the side wall of the outer reef body 3 is provided with an outer reef inlet and outlet channel 31;

[0050] The interception rod 4 includes a rotating shaft 41 and an interception blade 42. The lower end of the rotating shaft 41 is rotatably mounted on the base 1. The interception blades 42 on adjacent interception rods 4 are staggered.

[0051] The upper end of the inner reef body 2 is connected with a rope 5, and the other end of the rope 5 is installed with a buoy 6;

[0052] The channel dredging mechanism includes an inner reef channel dredging component 7, an outer reef channel dredging component 8 and a rotary drive component 9. The inner reef channel dredging component 7 includes an insertion rod 71, which is fixedly mounted on the outer reef body 3, and one end of the insertion rod 71 is slidably plugged into the inner reef inlet and outlet channel 21. When the inner reef body 2 moves up and down, the inner wall of the inner reef inlet and outlet channel 21 slides and rubs against the insertion rod 71. The outer reef channel dredging component 8 includes a push plate 81, which is slidably mounted inside the outer reef body 3. When the inner reef body 2 moves up and down, the push plate 81 is pushed to slide and rub against the inner wall of the outer reef inlet and outlet channel 31. The rotary drive component 9 includes a lifting and lowering pressure seat 91, which is slidably mounted on the base 1, and drives the rotating shaft 41 to rotate when the lifting and lowering pressure seat 91 moves up and down, and the inner reef body 2 is placed on the upper surface of the lifting and lowering pressure seat 91.

[0053] As can be seen from the above, the artificial fish reef, by setting the outer reef body 3, the inner reef body 2 and the intercepting rod 4, the three cooperate to form a three-layer fish reef chamber for the growth of fry and young fish of different sizes. The inner reef body 2 can move up and down inside the outer reef body 3. When the inner reef body 2 is pulled to move upward, the inner reef inlet and outlet channel 21 opened on the inner reef body 2 rubs against the insertion rod 71 fixed on the outer reef body 3, thereby cleaning the inner reef inlet and outlet channel 21. When the inner reef body 2 moves, it pushes the push plate 81 to move, so that the push plate 81 passes through the outer reef inlet and outlet channel 31, thereby scraping impurities adhered to the inner wall of the outer reef inlet and outlet channel 31. In addition, when the lifting and pressing seat 91 moves up and down, it can drive the rotating shaft 41 to rotate, so that the intercepting blades 42 on adjacent intercepting rods 4 move in an interlaced manner, which can prevent the intervals between the intercepting blades 42 from being completely blocked by impurities, and prevent seaweed, shellfish and other organisms from breeding and growing between the outer reef entrance and exit channel 31, the inner reef entrance and exit channel 21 and the intercepting blades 42, thereby blocking the channel, facilitating the cleaning of artificial fish reefs, ensuring the passability of artificial fish reefs, allowing fish of suitable sizes to smoothly enter and exit the corresponding fish reef chamber, and protecting fry and young fish of different sizes to grow safely in the corresponding fish reef chamber.

[0054] When the artificial fish reef is used, the artificial fish reef is transported to the placement position by a ship, one end of the rope 5 is connected to the top of the inner reef body 2, and then the hook of the crane is used to hang the rope 5 and lift the artificial fish reef; the cable of the crane is controlled to descend, and the artificial fish reef is slowly placed into the water body, so that the lower surface of the base 1 contacts the bottom mud after the artificial fish reef sinks into the water body; after the artificial fish reef is placed, the excess rope 5 is cut off, leaving only the length of the rope 5 that can extend to the water surface, and the buoy 6 is installed at the other end of the rope 5.

[0055] Embodiment 2

[0056] like Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the difference between this embodiment and the above-mentioned embodiment is that the outer surface of the outer reef body 3 is set to a prism shape, the inclination angle of the outer wall of the inner reef body 2 is the same as the inclination angle of the inner wall of the outer reef body 3, the outer reef channel dredging component 8 also includes a slide rod 82, a connecting plate 84, a mounting plate 85 and a reset spring 86, and a sliding hole 32 is opened on the outer reef body 3, and the sliding holes 32 are respectively arranged on both sides of the outer reef inlet and outlet channel 31. The slide rod 82 is slidably inserted in the inside of the slide hole 32, and the two ends of the connecting plate 84 are respectively fixedly connected to the slide rod 82, the push plate 81 is fixedly installed on one end of the connecting plate 84 facing the outer reef inlet and outlet channel 31, and the mounting plate 85 is fixedly installed on the other end of the connecting plate 84. One end of the reset spring 86 is fixedly connected to the mounting plate 85, and the other end of the reset spring 86 is fixedly connected to the inner wall of the outer reef body 3.

[0057] As can be seen from the above, when the prism-shaped structure is impacted by horizontal water flow, it can cause the water flow to rise and form an upwelling, so that the nutrients in the water flow enter the interior of the outer reef body 3 from the outer reef inlet and outlet channel 31; since the push plate 81 and the slide rod 82 are fixedly connected by the connecting plate 84, the push plate 81 can only slide horizontally. Since the inclination angle of the outer wall of the inner reef body 2 is the same as the inclination angle of the inner wall of the outer reef body 3, when the inner reef body 2 moves upward, the slide rod 82 is pushed to move horizontally, so that the push plate 81 approaches and enters the outer reef inlet and outlet channel 31, thereby scraping off the impurities sticking to the inner wall of the outer reef inlet and outlet channel 31. Due to the setting of the reset spring 86, when the inner reef body 2 moves downward, the outer wall of the inner reef body 2 is away from the slide rod 82, and the reset spring 86 can pull the slide rod 82 to slide in the opposite direction, so that the push plate 81 is away from the outer reef inlet and outlet channel 31, thereby preventing the push plate 81 from blocking the outer reef inlet and outlet channel 31.

[0058] A roller 83 is rotatably mounted on one end of the slide rod 82 away from the slide hole 32 , and the roller 83 abuts against the outer wall of the inner reef body 2 , and the end of the slide rod 82 away from the roller 83 is always in contact with the inner wall of the slide hole 32 .

[0059] As can be seen from the above, by setting the roller 83, when the inner reef body 2 moves upward, the pushing effect on the slide bar 82 is better, avoiding excessive friction between the inner reef body 2 and the slide bar 82 and causing the slide bar 82 to break; by setting the end of the slide bar 82 away from the roller 83 to always contact the inner wall of the slide hole 32, it can avoid the situation where the slide bar 82 cannot accurately enter the slide hole 32 when sliding after escaping from the slide hole 32.

[0060] Embodiment 3

[0061] like Figure 3 , Figure 4 , Figure 7 and Figure 8 As shown, the difference between this embodiment and the above embodiment is that the rotating shafts 41 are distributed in a circular array on the outside of the base 1, the spacing between adjacent rotating shafts 41 is not less than half the length of the intercepting blade 42, the rotation directions of adjacent rotating shafts 41 are opposite, a protrusion 11 is provided in the middle position of the upper surface of the base 1, a through opening 12 is opened in the middle position of the protrusion 11, the lifting and lowering seat 91 is slidably installed inside the through opening 12, and an inlet and outlet hole 22 is opened at the bottom of the inner reef body 2, and the inlet and outlet hole 22 is arranged on the outside of the protrusion 11.

[0062] It can be seen from the above that since the spacing between adjacent rotating shafts 41 is not less than half the length of the intercepting blade 42, the intercepting blade 42 will not collide with the adjacent rotating shaft 41 when the rotating shaft 41 rotates. By setting the through opening 12, it is convenient for the lifting and lowering pressure seat 91 to slide up and down. By setting the inlet and outlet hole 22, fish can enter and exit from the bottom of the inner reef body 2.

[0063] The rotary drive assembly 9 also includes a slide plate 92, a lifting and rotating plate 93, a fixed shaft 94, a rotating plate 95 and a support spring 97. A guide plate 13 is fixedly installed inside the base 1. The slide plates 92 are distributed in a circular array inside the base 1, and the slide plates 92 are slidably connected to the guide plates 13. One end of the lifting and rotating plate 93 is rotatably connected to the lower surface of the lifting and pressing seat 91, and the other end of the lifting and rotating plate 93 is rotatably connected to one end of the slide plate 92. The fixed shaft 94 is fixedly installed on the other end of the slide plate 92. One end of the rotating plate 95 is fixedly connected to the rotating shaft 41, and the other end of the rotating plate 95 is provided with a sliding hole 96. The fixed shaft 94 is slidably connected to two adjacent sliding holes 96. The number of rotating shafts 41 is twice the number of slide plates 92. The two ends of the support spring 97 are respectively fixedly connected to the inner bottom wall of the base 1 and the lower surface of the lifting and pressing seat 91.

[0064] As can be seen from the above, under the support of the support spring 97, when the inner reef body 2 is not pressed on the lifting pressure seat 91, the support spring 97 can push the lifting pressure seat 91 to move upward, so that one end of the lifting turntable 93 rises, thereby pulling the slide plate 92 to slide. Since a sliding hole 96 is provided on the rotating plate 95, when the rotating plate 95 can only rotate, when the fixed shaft 94 slidingly installed inside the sliding hole 96 moves, it can pull the rotating plate 95 to rotate, thereby causing the rotating shaft 41 to rotate.

[0065] Embodiment 4

[0066] like Figure 2 , Figure 3 and Figure 4 As shown, the difference between this embodiment and the above embodiment is that a cutoff plate 33 is fixedly mounted on the outer side wall of the outer reef body 3, and the cutoff plate 33 is arranged above the outer reef inlet and outlet channel 31.

[0067] As can be seen from the above, by providing the intercepting plate 33 , more of the upwelling flowing along the outer wall of the outer reef body 3 can enter the outer reef inlet and outlet channel 31 .

[0068] One end of the insertion rod 71 extends to the outside of the outer reef body 3, and a blocking rod 34 is fixedly installed on the outer wall of the outer reef body 3. A support rod 35 is fixedly installed on the upper surface of the base 1. The upper end of the support rod 35 is fixedly connected to the bottom wall of the outer reef body 3, and outlets 36 are opened at the upper and lower ends of the outer reef body 3.

[0069] As can be seen from the above, the blocking rod 34 cooperates with the end of the insertion rod 71 extending to the outside of the outer reef body 3, and can form a fish reef chamber composed of multiple straight rods between the outer reef body 3 and the intercepting rod 4 to limit the passage of fish that are too large. By setting the support rod 35 and the outlet 36, young fish can also enter the fish reef chamber formed between the outer reef body 3 and the inner reef body 2 from the upper and lower ends of the outer reef body 3.

[0070] The spacing between adjacent insertion rods 71 ​​is equal to the spacing between interception blades 42 , the spacing between adjacent blocking rods 34 is equal to the spacing between interception blades 42 , and the spacing between interception blades 42 is greater than the diameter of the outer reef inlet and outlet channel 31 .

[0071] As can be seen from the above, by setting the spacing between adjacent insertion rods 71 ​​and the spacing between adjacent blocking rods 34 to be equal to the spacing between intercepting blades 42, larger fish can be prevented from entering the inner side of the intercepting rod 4 from above. Since the spacing between the intercepting blades 42 is larger than the diameter of the outer reef entrance and exit channel 31, the young fish that can enter the fish reef chamber formed between the intercepting rod 4 and the outer reef body 3 may not be able to enter the interior of the outer reef body 3, ensuring that the food competition between smaller young fish and larger young fish is small.

[0072] The length of the support rod 35 and the spacing between adjacent support rods 35 are not greater than the diameter of the outer reef inlet and outlet channel 31, the difference between the outer diameter and the inner diameter of the outlet 36 is not greater than the diameter of the outer reef inlet and outlet channel 31, and the diameter of the outer reef inlet and outlet channel 31 is greater than the width of the inner reef inlet and outlet channel 21.

[0073] As can be seen from the above, since the length of the support rod 35 and the spacing between adjacent support rods 35 are not greater than the diameter of the outer reef entrance and exit channel 31, the difference between the outer diameter and the inner diameter of the outlet 36 is not greater than the diameter of the outer reef entrance and exit channel 31, so that the young fish that cannot enter the outer reef body 3 from the outer reef entrance and exit channel 31 cannot enter the outer reef body 3 from the outlet 36. Since the diameter of the outer reef entrance and exit channel 31 is greater than the width of the inner reef entrance and exit channel 21, the young fish that can enter the outer reef body 3 may not be able to enter the inner reef body 2, ensuring that the food competition between smaller young fish or fry and larger young fish is small.

[0074] Embodiment 5

[0075] See also Figure 1 - Figure 8 The present invention also discloses a method for placing a combined artificial fish reef, the specific steps of which are:

[0076] The artificial reef is transported to the deployment location by ship, one end of the rope 5 is connected to the top of the inner reef body 2, and then the hook of the crane is used to hang the rope 5 and lift the artificial reef;

[0077] Control the cable of the crane to descend, and slowly place the artificial fish reef into the water body, so that after the artificial fish reef sinks into the water body, the lower surface of the base 1 contacts the bottom mud;

[0078] After the artificial reef is placed, the redundant rope 5 is cut off, leaving only the length of the rope 5 that can extend to the water surface, and the buoy 6 is installed at the other end of the rope 5.

[0079] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An artificial reef, comprising a base, characterized in that: The base is provided with an inner reef body, an outer reef body, an interception rod and a channel dredging mechanism, the inner reef body is movably arranged inside the outer reef body, the outer reef body is fixedly installed on the upper surface of the base, the interception rod is rotatably installed on the upper surface of the base, and the interception rod is arranged on the outside of the outer reef body, the side wall of the inner reef body is provided with an inner reef inlet and outlet channel, and the side wall of the outer reef body is provided with an outer reef inlet and outlet channel; The interception rod comprises a rotating shaft and interception blades, the lower end of the rotating shaft is rotatably mounted on a base, and the interception blades on adjacent interception rods are staggered; The upper end of the inner reef body is connected to a rope, and the other end of the rope is installed with a buoy; The channel dredging mechanism includes an inner reef channel dredging component, an outer reef channel dredging component and a rotary drive component. The inner reef channel dredging component includes an insertion rod, which is fixedly mounted on the outer reef body, and one end of the insertion rod is slidably plugged into the inner reef inlet and outlet channel. When the inner reef body moves up and down, the inner wall of the inner reef inlet and outlet channel slides and rubs against the insertion rod. The outer reef channel dredging component includes a push plate, which is slidably mounted inside the outer reef body. When the inner reef body moves up and down, the push plate is pushed to slide and rub against the inner wall of the outer reef inlet and outlet channel. The rotary drive component includes a lifting and lowering pressure seat, which is slidably mounted on the base, and drives the rotating shaft to rotate when the lifting and lowering pressure seat moves up and down. The inner reef body is placed on the upper surface of the lifting and lowering pressure seat.

2. An artificial reef according to claim 1, characterized in that: The outer surface of the outer reef body is set to a prism shape, the inclination angle of the outer side wall of the inner reef body is the same as the inclination angle of the inner side wall of the outer reef body, the outer reef channel dredging assembly also includes a slide rod, a connecting plate, a mounting plate and a reset spring, the outer reef body is provided with a slide hole, the slide holes are respectively arranged on both sides of the outer reef inlet and outlet channel, the slide rod is slidably inserted in the inside of the slide hole, the two ends of the connecting plate are respectively fixedly connected to the slide rod, the push plate is fixedly installed on one end of the connecting plate facing the outer reef inlet and outlet channel, the mounting plate is fixedly installed on the other end of the connecting plate, one end of the reset spring is fixedly connected to the mounting plate, and the other end of the reset spring is fixedly connected to the inner wall of the outer reef body.

3. An artificial reef according to claim 2, characterized in that: A roller is rotatably mounted on one end of the slide rod away from the slide hole, the roller abuts against the outer wall of the inner reef body, and the end of the slide rod away from the roller is always in contact with the inner wall of the slide hole.

4. An artificial reef according to claim 1, characterized in that: The rotating shafts are distributed in a circular array on the outside of the base, the spacing between adjacent rotating shafts is not less than half the length of the intercepting blade, the rotation directions of adjacent rotating shafts are opposite, a protrusion is provided in the middle position of the upper surface of the base, a through opening is opened in the middle position of the protrusion, the lifting and lowering seat is slidably installed inside the through opening, and an inlet and outlet hole is opened at the bottom of the inner reef body, and the inlet and outlet hole is arranged on the outside of the protrusion.

5. An artificial reef according to claim 1, characterized in that: The rotary drive assembly also includes a slide plate, a lifting and lowering rotating plate, a fixed shaft, a rotating plate and a supporting spring. A guide plate is fixedly installed inside the base. The slide plates are distributed in a circular array inside the base, and the slide plates are slidably connected to the guide plates. One end of the lifting and lowering rotating plate is rotatably connected to the lower surface of the lifting and lowering pressure seat, and the other end of the lifting and lowering rotating plate is rotatably connected to one end of the slide plate. The fixed shaft is fixedly installed on the other end of the slide plate, one end of the rotating plate is fixedly connected to the rotating shaft, and a sliding hole is provided at the other end of the rotating plate. The fixed shaft is slidably connected to two adjacent sliding holes. The number of the rotating shafts is twice the number of the slide plates. The two ends of the supporting spring are respectively fixedly connected to the inner bottom wall of the base and the lower surface of the lifting and lowering pressure seat.

6. An artificial reef according to claim 1, characterized in that: The outer side wall of the outer reef body is also fixedly provided with a cut-off plate, and the cut-off plate is arranged above the outer reef inlet and outlet passage.

7. An artificial reef according to claim 1, characterized in that: One end of the insertion rod extends to the outside of the outer reef body, and a blocking rod is fixedly installed on the outer wall of the outer reef body. A support rod is fixedly installed on the upper surface of the base, and the upper end of the support rod is fixedly connected to the bottom wall of the outer reef body. Outlets are opened at both the upper and lower ends of the outer reef body.

8. An artificial reef according to claim 7, characterized in that: The spacing between adjacent insertion rods is equal to the spacing between interception blades, the spacing between adjacent blocking rods is equal to the spacing between interception blades, and the spacing between the interception blades is greater than the diameter of the outer reef inlet and outlet channel.

9. An artificial reef according to claim 7, characterized in that: The length of the support rod and the spacing between adjacent support rods are no greater than the diameter of the outer reef entrance and exit channel, the difference between the outer diameter and the inner diameter of the outlet is no greater than the diameter of the outer reef entrance and exit channel, and the diameter of the outer reef entrance and exit channel is greater than the width of the inner reef entrance and exit channel.

10. A method for placing a combined artificial reef, using an artificial reef as claimed in any one of claims 1 to 9, characterized in that: The specific steps are: The artificial reef is transported to the deployment location by ship, one end of the rope is connected to the top of the inner reef body, and then the hook of the crane is used to hook and lift the artificial reef; Control the crane's cable to descend, and slowly place the artificial reef into the water body, so that the lower surface of the base of the artificial reef contacts the bottom mud after it sinks into the water body; After the artificial reef is placed, cut off the excess rope, leaving only the length of the rope that can extend to the water surface, and install the buoy at the other end of the rope.

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