A floating breakwater for effectively mitigating long-period waves

Abstract

The application discloses a floating breakwater capable of effectively reducing long-period waves, which comprises a floating box, a connecting seat, a rotating wave-damping mechanism and a counteracting device, the rotating wave-damping mechanism is arranged in front of a wave-encountering surface of the floating box and is fixedly connected with both side surfaces of the floating box through connecting structures, the connecting seat is arranged on both sides of the floating box through the connecting structures, and the counteracting device is arranged below the floating box; the rotating wave-damping mechanism comprises a wave-damping plate, when the long-period waves impact, the waves strike on the wave-damping plate and then drive the whole rotating wave-damping mechanism to rotate, so that the long-period waves are effectively unloaded, and the wave-damping capacity of the wave-damping plate can be adjusted by adjusting the relative distance between the wave-damping plate and a rotating shaft of the rotating wave-damping mechanism; the connecting seat is used for buffering the floating box and the rotating wave-damping mechanism in the front-back and up-down directions after being impacted by the long-period waves; and the counteracting device is used for increasing water flow resistance and reducing the swing of the floating breakwater. The device has high stability and can effectively reduce the long-period waves.

Description

Technical Field

[0001] This invention belongs to the field of wave reduction, and in particular relates to a floating breakwater that effectively reduces long-period waves. Background Technology

[0002] Floating breakwaters typically consist of a box or floating raft with a certain draft. The box or raft is connected to an anchor chain fixed to the seabed at one end and floats on the water's surface. Their wave-damping principle primarily utilizes the floating body to impede wave propagation or break up waves, thereby reducing wave energy.

[0003] Existing floating breakwaters are generally assembled from multiple individual and structurally identical unit modules. The connection structure between the unit modules is usually a chain, which makes the stability of each unit module poor after assembly.

[0004] The applicant found publication number CN114657934B, entitled "A Roll-Reducing Floating Breakwater and Its Control Method," which discloses a breakwater body, a rocking-plate type power generation device, a buoyancy adjustment device, and a mooring system. While the aforementioned patent can reduce roll, it is still not effective in mitigating long-period waves. Summary of the Invention

[0005] Purpose of the invention: The purpose of this invention is to provide a floating breakwater that can effectively reduce long-period waves, solving the problem that existing floating breakwaters have poor stability and cannot effectively reduce long-period waves.

[0006] Technical Solution: The floating breakwater of this invention includes a pontoon, connecting seats, a rotating wave-damping mechanism, and a counteracting device. The rotating wave-damping mechanism is located in front of the pontoon facing the waves and is fixedly connected to the two sides of the pontoon via a connecting structure. Two connecting seats are respectively located on both sides of the pontoon and connected to the connecting structure. The counteracting device is located below the pontoon and is fixedly connected to the connecting seats at the bottom and sides of the pontoon. The rotating wave-damping mechanism includes wave-damping plates. When long-period waves impact, they strike the wave-damping plates, thereby driving the entire rotating wave-damping mechanism to rotate, effectively unloading the long-period waves. At the same time, the wave-damping capacity of the wave-damping plates can be adjusted by adjusting the relative distance between the wave-damping plates and the rotating shaft of the rotating wave-damping mechanism. The connecting seats are used to buffer the pontoon and the rotating wave-damping mechanism in the front-to-back and up-and-down directions after being impacted by long-period waves. The counteracting device is used to increase the water flow resistance and reduce the swaying of the floating breakwater itself.

[0007] Optionally, the rotating wave-damping mechanism also includes a rotating cylinder, which is a cylindrical structure formed by multiple circumferentially spaced rotating plates. Inside the rotating cylinder is a coaxially rotating bidirectional lead screw. A mounting base is fixedly fitted in the middle area of ​​the bidirectional lead screw. Both ends of the outer side of the bidirectional lead screw are threaded with threaded rings. The outer side of each threaded ring is circumferentially connected to multiple rotating rods. The extension ends of the multiple rotating rods are slidably connected to slides on the inner side of multiple rotating plates. Each rotating plate is provided with a wave-damping plate on its outer side.

[0008] Optionally, the threads on the outer surfaces of the left and right ends of the bidirectional lead screw have opposite directions and are respectively threaded onto the threaded rings on the left and right sides.

[0009] Optionally, the rotating wave-damping mechanism is also provided with a limiting mechanism, which includes a limiting plate, a rotating handle, and a positioning bolt. Both ends of the bidirectional lead screw extend to the two outer sides of the rotating drum and are fixedly connected to the limiting plate. The limiting plate is threaded with a positioning bolt, and the positioning bolt passes through the limiting plate and is threadedly connected to the rotating drum. The left and right sides of the limiting plate, which are far apart from each other, are fixedly connected to the rotating handle.

[0010] Optionally, the limiting disc, rotating handle, and positioning bolt are all located inside the bearing housing, and the bearing housing is fixedly installed on the connecting structure.

[0011] Optionally, a vertical rod is fixedly connected between the upper and lower inner walls of the front and rear ends of each connector. A vertical slider is slidably sleeved on the outer side of the vertical rod. A horizontal rod is fixedly connected between the front and rear vertical sliders. A horizontal slider is slidably sleeved on the outer side of the horizontal slider. A mounting plate is fixedly connected to the side of the horizontal slider away from the connector. Connecting rings are fixedly connected to the four corners of the side of the mounting plate away from the horizontal slider.

[0012] Optionally, springs are fixedly connected to both the upper and lower ends of the vertical slider and the upper and lower inner walls of the connecting seat, and the springs are set on the outside of the vertical rod.

[0013] Optionally, springs are fixedly connected to both ends of the horizontal slider and the vertical sliders on the front and rear sides, and the springs are sleeved on the outer side of the horizontal bar.

[0014] Optionally, the counteracting device includes a support base, a round rod, a disc, a connecting plate, and a countercurrent plate. The lower left and right sides of the float are fixedly connected to the support base. The bottom of the support base is fixedly connected to the round rod, and both ends of the round rod are fixedly connected to the disc. The upper and lower ends of the two discs on opposite sides are rotatably connected to the connecting plate via a volute hinge. The ends of the two connecting plates on the same upper and lower sides away from the volute hinge are fixedly connected to the countercurrent plate. The lower left and right sides of the lower end face of each connecting base are fixedly connected to the connecting plate. The upper and lower ends of the connecting plates on opposite sides are fixedly connected to the limiting slide rod. The upper and lower limiting slide rods on opposite sides are respectively slidably connected to the upper and lower countercurrent plates on opposite sides.

[0015] Optionally, the left and right discs are fixedly connected to a limiting platform on one side away from each other, and the upper and lower ends of the limiting platform are respectively inclined and abutting against the connecting plates on the upper and lower sides on one side.

[0016] Beneficial effects: Compared with the prior art, the significant technical effects of the present invention are: (1) When the side with the rotating drum faces the wave direction, and when long-period waves impact, it can strike the wave-damping plate, thereby driving the rotating drum to rotate, thus effectively unloading the long-period waves; (2) It is convenient to make specific adjustments according to different usage conditions. When the wave-damping plate is far away from the rotating drum, it can reduce the waves with greater potential energy. After the adjustment is completed, the limiting plate and the rotating drum can be fixed relative to each other by the positioning bolts. At the same time, when rotating the handle, it is necessary to control the rotating drum so that it does not rotate; (3) The spring can realize For the horizontal sliding of the horizontal slider, the spring can buffer the vertical sliding of the horizontal bar, thus achieving effective buffering of the pontoon and the rotating drum connected to it after being impacted by long-period waves; (4) The limiting platform can limit the upper and lower connecting plates to the limiting platform respectively, and the upper and lower counterflow plates can abut against the limiting sliding rods on the upper and lower sides respectively, effectively reducing its own back and forth swaying. When swaying up and down, the counterflow plate can also increase the resistance between the counterflow and the water flow, thereby effectively improving the stability; (5) It has high stability and can also effectively reduce long-period waves. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the breakwater structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the breakwater structure from below according to the present invention;

[0019] Figure 3 This is a rear view structural schematic diagram of the breakwater of the present invention;

[0020] Figure 4 This is a schematic diagram of the breakwater without a rotating cylinder according to the present invention;

[0021] Figure 5 This is a schematic diagram of the structure of the rotating drum of the present invention;

[0022] Figure 6 This is a schematic diagram of the internal structure of the rotating drum of the present invention;

[0023] In the diagram: 1. Float; 2. Connecting seat; 3. Side plate; 4. Bearing seat; 5. Rotary drum; 6. Slide rail; 7. Mounting seat; 8. Double-acting lead screw; 9. Threaded ring; 10. Rotating rod; 11. Wave damping plate; 12. Limiting plate; 13. Rotating handle; 14. Positioning bolt; 15. Vertical rod; 16. Vertical slider; 17. Spring 1; 18. Horizontal rod; 19. Horizontal slider; 20. Spring 2; 21. Mounting plate; 22. Connecting ring; 23. Support seat; 24. Round rod; 25. Round disc; 26. Connecting plate; 27. Counterflow plate; 28. Limiting platform; 29. ​​Connecting plate; 30. Limiting slide rod. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] Example 1:

[0026] This invention provides a floating breakwater that effectively reduces long-period waves. Side plates are fixedly connected to both sides of the front end of the pontoon, and bearing seats are installed through the side plates. A rotating cylinder is rotatably fitted between the bearing seats on both sides. Inside the rotating cylinder, a bidirectional screw with oppositely oriented threads at both ends is rotatably fitted via a mounting seat. Each end of the bidirectional screw has threaded rings on its outer surface. Multiple tracks are arranged circumferentially along the axial direction of the bidirectional screw on the outer surface of each threaded ring. Rotary rods are rotatably connected to these tracks. The outward extensions of the rotating rods rotatably connected to the threaded rings at both ends in the same radial direction have tracks. Each track is rotatably connected to a wave-damping plate. Thus, when the side with the rotating cylinder faces the wave direction, when a long-period wave impacts, it strikes the wave-damping plate, thereby driving the rotating cylinder to rotate and achieving wave reduction of long-period waves. The system effectively unloads waves by extending the two ends of the double-acting screw to the outer sides of the rotating drum and fixing them with limit plates. Positioning bolts that connect to the rotating drum are installed through the limit plates. Additionally, handles are connected to both limit plates. In use, rotating the handles rotates the limit plates, which in turn rotates the double-acting screw, allowing adjustment of the distance between the threaded rings on both sides. This adjustment of the screw's rotation, in turn, adjusts the axial distance between the wave-damping plate and the rotating drum, facilitating adjustments based on different usage conditions. When the wave-damping plate moves away from the rotating drum, it can reduce waves with greater potential energy. After adjustment, the limit plates are fixed to the rotating drum using the positioning bolts. It is important to ensure that the rotating drum does not rotate when the handles are turned.

[0027] By fixing connecting rings on both sides of the pontoon to engage with connecting rings on the connecting seat, the pontoon can be installed on the connecting seat. Since the connecting rings on the mounting plate are fixedly connected to the mounting plate, and the mounting plate is fixedly connected to the horizontal slider, the horizontal slider slides on the outside of the crossbar. The vertical sliders fixedly connected to both ends of the crossbar slide on the outside of the vertical bar. A second spring is fitted on the outside of the crossbar to buffer the lateral sliding of the horizontal slider, and a first spring is fitted on the outside of the vertical bar to buffer the vertical sliding of the crossbar. This effectively buffers the pontoon and rotating drum connected to it from long-period wave impacts.

[0028] A circular rod is fixedly connected to the bottom of the pontoon, and two circular discs are fixedly connected to both ends of the rod. The upper and lower ends of the two discs, on opposite sides, are rotatably connected to connecting plates via volute hinges. A counter-current plate is fixedly connected between the connecting plates on the same side. Each disc is also fixedly connected to a limiting platform between the upper and lower connecting plates. Under the force of the volute hinges, the upper and lower connecting plates can be limited by the limiting platforms. Simultaneously, two upper and lower limiting slide rods are fixedly connected to the connecting base via connecting plates. These two limiting slide rods slide close to the sides of the counter-current plates on the upper and lower sides, respectively. When the pontoon is impacted by waves and moves backward, the discs will move backward, causing the upper and lower counter-current plates to contact the limiting slide rods on the upper and lower sides. This causes the upper and lower counter-current plates to rotate and open to a larger angle, allowing them to unfold at a greater angle and create greater resistance to the water flow behind them. This effectively reduces the pontoon's swaying. When swaying up and down, the counter-current plates also increase the resistance to the water flow, thus effectively improving stability. This gives the device high stability and also allows it to effectively reduce long-period waves.

[0029] The floating breakwater of this invention includes a pontoon 1, connecting seats 2, a rotating wave-damping mechanism, and a counteracting device. The rotating wave-damping mechanism is located in front of the wave-facing face of the pontoon 1 and is fixedly connected to the two sides of the pontoon 1 via a connecting structure. Two connecting seats 2 are respectively located on both sides of the pontoon 1 and connected to the connecting structure. The counteracting device is located below the pontoon 1 and is fixedly connected to the connecting seats 2 at the bottom and sides of the pontoon 1. The rotating wave-damping mechanism includes wave-damping plates 11. When long-period waves impact, they strike the wave-damping plates, thereby driving the entire rotating wave-damping mechanism to rotate, effectively unloading the long-period waves. At the same time, the wave-damping capacity of the wave-damping plates can be adjusted by adjusting the relative distance between the wave-damping plates 11 and the rotating shaft of the rotating wave-damping mechanism. The connecting seats 2 are used to buffer the pontoon 1 and the rotating wave-damping mechanism in the front-to-back and up-and-down directions after being impacted by long-period waves. The counteracting device is used to increase the water flow resistance and reduce the swaying of the floating breakwater itself.

[0030] The rotating wave-damping mechanism also includes a rotating drum 5 and a limiting mechanism, which includes a limiting disc 12, a rotating handle 13, and a positioning bolt 14.

[0031] Please see Figure 1-6This invention provides a technical solution: a floating breakwater that effectively reduces long-period waves, comprising a pontoon 1 and a connecting seat 2. Side plates 3 are fixedly connected to both sides of the pontoon 1. Bearing seats 4 are fixedly connected to one side of each side plate 3, which are close to each other. A rotating cylinder 5 is rotatably connected between the bearing seats 4 on both sides. The rotating cylinder 5 is a cylindrical structure formed by multiple rotating plates arranged at circumferential intervals. A coaxially rotating bidirectional lead screw 8 is provided inside the rotating cylinder 5. An mounting seat 7 is fixedly fitted in the middle area of ​​the bidirectional lead screw 8 inside the rotating cylinder 5. Threaded rings 9 are provided at both ends of the threaded sleeves on the outer side of the bidirectional lead screw 8. Multiple rotating rods 10 are rotatably connected to the outer side of each threaded ring 9. The extension ends of the multiple rotating rods 10 are slidably connected to the slide rails 6 on the inner side of the multiple rotating plates. A wave-damping plate 11 is provided on the outer side of each rotating plate. Meanwhile, vertical rods 15 are fixedly connected between the front and rear walls of the connecting seat 2. A vertical slider 16 is slidably sleeved on the outside of the vertical rod 15. A horizontal rod 18 is fixedly connected between the front and rear vertical sliders 16. A horizontal slider 19 is slidably sleeved on the outside of the horizontal rod 18. A mounting plate 21 is fixedly connected to the side of the horizontal slider 19 away from the connecting seat 2. A connecting ring 22 is fixedly connected to the four corners of the side of the mounting plate 21 away from the horizontal slider 19. A counteracting device is also provided at the bottom of the float box 1.

[0032] The threads on the outer sides of the left and right ends of the double-ended lead screw 8 are arranged in opposite directions and are respectively threaded into the threaded rings 9 on the left and right sides.

[0033] Both ends of the bidirectional lead screw 8 extend to the two outer sides of the rotating drum 5 and are fixedly connected to the limiting disc 12. The limiting disc 12 is threaded with a positioning bolt 14, and the positioning bolt 14 passes through the limiting disc 12 and is threadedly connected to the rotating drum 5. The left and right sides of the limiting disc 12 that are far apart from each other are fixedly connected to the rotating handle 13.

[0034] The bearing housing 4 passes through the side plate 3, and the limiting plate 12, the rotating handle 13 and the positioning bolt 14 are all located inside the bearing housing 4.

[0035] Side plates 3 are fixedly connected to both sides of the front end of the float 1, and bearing seats 4 are installed through the side plates 3. A rotating cylinder 5 is rotatably fitted between the bearing seats 4 on both sides. Inside the rotating cylinder, a double-ended lead screw 8 with opposite threads at both ends is rotatably fitted through a mounting seat 7. Threaded rings 9 are provided on the threaded sleeves on the outer sides of both ends of the double-ended lead screw 8. Multiple rotating rods 10 are rotatably connected to the outer side of each threaded ring 9 in a circumferential direction. The outward extension ends of the multiple rotating rods 10 are slidably connected to the slides on the inner sides of multiple rotating plates of the rotating cylinder 5. A wave-damping plate is connected to the outer side of each rotating plate. When the rotating cylinder 5 faces the wave direction and is impacted by long-period waves, the waves can strike the wave-damping plate 11. When the wave-damping plate 11 rotates stably, its rotating connection will drive the rotating rods 10 to rotate, which in turn drives the rotating cylinder 5 to rotate, thereby effectively unloading the long-period waves. Since the two ends of the bidirectional lead screw 8 extend to the outer sides of the two ends of the rotating drum 5 and are fixedly connected to the limiting discs 12, and the limiting discs 12 are provided with positioning bolts 14 that can be connected to the rotating drum, and the limiting discs 12 on both sides are also connected to the rotating handles 13; in specific use, the limiting discs 12 can be rotated clockwise or counterclockwise by manually rotating the rotating handles 13, thereby rotating the bidirectional lead screw 8, reducing or increasing the distance between the threaded rings 9 on both sides, realizing the adjustment of the rotating rod 10, thereby realizing the adjustment of the axial distance between the wave-damping plate 11 and the rotating drum 5, so as to facilitate the corresponding specific adjustments for different usage conditions. For example, when the wave-damping plate 11 is away from the rotating drum 5, it can reduce the waves with greater potential energy. After the adjustment is completed, the limiting discs 12 and the rotating drum 5 can be fixed relative to each other by the positioning bolts 14. At the same time, when rotating the rotating handles 13, it is necessary to control the rotating drum 5 so that it does not rotate accordingly.

[0036] Springs 17 are fixedly connected to both the upper and lower ends of the vertical slider 16 and the upper and lower inner walls of the connecting seat 2, and the springs 17 are sleeved on the outside of the vertical rod 15.

[0037] Spring 20 is fixedly connected to both ends of the horizontal slider 19 and the vertical slider 16 on its front and rear sides. Spring 20 is sleeved on the outer side of the horizontal bar 18.

[0038] Connecting rings 22 are provided on both sides of the connecting seat 2. The connecting ring 22 on the side of the connecting seat 2 closest to the side plate 3 is connected to the side plate 3, thus indirectly representing the installation of the float 1 on the connecting seat 2. At the same time, since the connecting ring 22 on the mounting plate 21 is fixedly connected to the mounting plate 21, and the mounting plate 21 is fixedly connected to the horizontal slider 19, the horizontal slider 19 is slidably sleeved on the outside of the crossbar 18, and the vertical sliders 16 fixedly connected to both ends of the crossbar 18 are slidably sleeved on the outside of the vertical bar 15. The outside of the crossbar 18 is sleeved with a second spring 20, which can buffer the horizontal sliding of the horizontal slider 19, and the outside of the vertical bar 15 is sleeved with a first spring 17, which can buffer the vertical sliding of the crossbar 18. Thus, effective buffering is achieved for the float 1 and the rotating drum 5 indirectly connected to it after being subjected to long-period wave impacts.

[0039] Example 2:

[0040] Please see Figure 1-6 The present invention provides a technical solution: the counteracting device includes a support base 23, a round rod 24, a disc 25, a connecting plate 26, and a countercurrent plate 27. The support base 23 is fixedly connected to the lower left and right sides of the float 1. The round rod 24 is fixedly connected to the bottom of the support base 23, and the disc 25 is fixedly connected to both ends of the round rod 24. The upper and lower ends of the two discs 25, which are away from each other, are rotatably connected to the connecting plate 26 through a volute hinge. The two connecting plates 26, which are on the same upper and lower side, are fixedly connected to the countercurrent plate 27 at the ends away from the volute hinge. The lower end face of each connecting base 2 is fixedly connected to the left and right sides of the lower end face of the connecting plate 29. The upper and lower ends of the connecting plates 29, which are close to each other, are fixedly connected to the limiting slide rods 30. The limiting slide rods 30 on the upper and lower sides, which are away from each other, are respectively in contact with the countercurrent plates 27 on the upper and lower sides, which are close to each other.

[0041] The left and right discs 25 are fixedly connected to the limiting platform 28 on one side away from each other. The upper and lower ends of the limiting platform 28 are respectively close to the connecting plates 26 on the upper and lower sides and tilted against each other on one side, so that the two counterflow plates have a certain angle from the beginning.

[0042] A round rod 24 is fixedly connected to the support base 23 connected to the bottom of the float 1. Two discs 25 are fixedly connected to both ends of the round rod 24. The upper and lower ends of the two discs 25, which are far apart from each other, are rotatably connected to connecting plates 26 via spiral hinges. A counter-current plate 27 is fixedly connected between the connecting plates 26 on the same side. Each disc 25 is also fixedly connected to a limiting platform 28 between the upper and lower connecting plates 26. Under the force of the spiral hinges, the upper and lower connecting plates 26 are respectively limited by the limiting platform 28, thus creating an angle between the two counter-current plates and preventing them from colliding. Especially when the device is subjected to wave force, the rotating shafts connecting the upper and lower connecting plates rotate counterclockwise and clockwise respectively, thereby causing the counter-current plates to rotate upwards and downwards, increasing the angle between them. Simultaneously, two upper and lower limiting slide rods 30 are fixedly connected to the connecting plate 29 connected to the connecting seat 2. The two upper and lower limiting slide rods 30 slide close to one side of the upper and lower counterflow plates 27 respectively. In this way, when the float box 1 is impacted by waves and moves backward, it will drive the disc 25 to move backward, causing the upper and lower counterflow plates 27 to abut against the upper and lower limiting slide rods 30 respectively. This causes the upper and lower counterflow plates 27 to rotate away from each other, opening a larger angle. This allows the counterflow plates 27 to unfold to a larger angle, forming greater resistance with the water flow behind them, effectively reducing their own back-and-forth swaying. When swaying up and down, the counterflow plates 27 can also increase the resistance between themselves and the water flow, thereby effectively improving stability.

Claims

1. A floating breakwater effective to attenuate long period waves, comprising: The utility model relates to a floating breakwater, including buoyancy tank (1), connecting seat (2), rotary wave absorbing mechanism and offset device, rotary wave absorbing mechanism sets up in the front of buoyancy tank (1) and is fixedly connected with the both sides of buoyancy tank (1) through connecting structure, two connecting seat (2) sets up in the both sides of buoyancy tank (1) respectively and is connected with connecting structure, offset device sets up below buoyancy tank (1) and is fixedly connected with the bottom of buoyancy tank (1) and both sides connecting seat (2), rotary wave absorbing mechanism includes wave absorbing plate (11), when long period wave impact, strike on wave absorbing plate, and then drive whole rotary wave absorbing mechanism to rotate, realize the effective force of long period wave, simultaneously through the relative distance adjustment of wave absorbing plate (11) and rotary wave absorbing mechanism's pivot adjustment wave absorbing plate's wave absorbing capacity, connecting seat (2) is used for realizing the front and back and up and down direction buffer of buoyancy tank (1) and rotary wave absorbing mechanism after long period wave impact, offset device is used for increasing water flow resistance, reduces floating breakwater's own swing, Rotary wave absorbing mechanism still includes rotary drum (5), rotary drum (5) is the cylindrical structure surrounded by multiple circumferentially interval arrangement rotary plate, its inside coaxial direction of rotation is provided with two-way screw rod (8), two-way screw rod (8) middle region fixedly has the mounting seat (7) of sleeve, two-way screw rod (8) outside surface both ends are all screw -threaded with the threaded ring (9) of sleeve, every threaded ring (9) outside surface circumferential rotation is connected with multiple rotary lever (10), multiple rotary lever (10) extension end and multiple rotary plate inside surface on slide (6) slidingly connected, every rotary plate outside surface is provided with wave absorbing plate (11). The offset device includes a support seat (23), a circular rod (24), a circular disc (25), a connecting plate (26), and a counter-flow plate (27). The left and right sides of the lower end of the buoyancy tank (1) are fixedly connected with the support seat (23). The bottom of the support seat (23) is fixedly connected with the circular rod (24), and the two ends of the circular rod (24) are fixedly connected with the circular disc (25). The upper and lower ends of the left and right sides of the two circular discs (25) that are away from each other are rotatably connected with the connecting plate (26) through vortex hinges. The left and right connecting plates (26) on the same side of the upper and lower sides are fixedly connected with the counter-flow plate (27) at the end away from the vortex hinge. The lower end surface of each connecting seat (2) is fixedly connected with the connecting plate (29) on the left and right sides. The upper and lower ends of the left and right connecting plates (29) on the same side of the left and right sides are fixedly connected with the limiting slide rod (30). The limiting slide rods (30) on the upper and lower sides are slidably connected with the counter-flow plates (27) on the upper and lower sides on the side that is close to each other.

2. A floating breakwater effective to attenuate long period waves as claimed in claim 1, wherein The outer sides of the left and right ends of the two-way screw rod (8) have opposite screw threads, and are respectively threadedly connected with the threaded rings (9) on the left and right sides.

3. A floating breakwater effective to attenuate long period waves as claimed in claim 1, wherein The rotation damping mechanism is further provided with a limiting mechanism, the limiting mechanism comprises a limiting disc (12), a rotating handle (13) and a positioning bolt (14), both ends of the bidirectional screw rod (8) extend outside the rotating drum (5) and are fixedly connected with the limiting disc (12), the positioning bolt (14) is threadedly connected with the limiting disc (12) and is threadedly connected with the rotating drum (5) penetrating the limiting disc (12), and the limiting disc (12) on the left and right sides is fixedly connected with the rotating handle (13) on the side away from each other.

4. A floating breakwater effective to attenuate long period waves according to claim 3, wherein, The limiting disc (12), the rotating handle (13) and the positioning bolt (14) are all in the bearing seat (4), and the bearing seat (4) is fixedly installed on the connecting structure.

5. A floating breakwater effective to attenuate long period waves as claimed in claim 1, wherein, The upper and lower inner walls between the front and rear ends of each connecting seat (2) are fixedly connected with vertical rods (15), the outer sides of the vertical rods (15) are slidably sleeved with vertical sliding blocks (16), the front and rear vertical sliding blocks (16) are fixedly connected with a horizontal rod (18) in common, the outer side of the horizontal rod (18) is slidably sleeved with a horizontal sliding block (19), the side, away from the connecting seat (2), of the horizontal sliding block (19) is fixedly connected with a mounting plate (21), and the side, away from the horizontal sliding block (19), of the mounting plate (21) is fixedly connected with connecting rings (22) at four corners.

6. A floating breakwater effective to attenuate long period waves according to claim 5, wherein, The upper and lower ends of the vertical sliding block (16) are fixedly connected with springs (17) between the upper and lower inner walls of the connecting seat (2), and the springs (17) are sleeved on the outer sides of the vertical rods (15).

7. A floating breakwater effective to attenuate long period waves as claimed in claim 5, wherein The front and rear ends of the horizontal sliding block (19) are fixedly connected with springs (20) between the front and rear vertical sliding blocks (16), and the springs (20) are sleeved on the outer sides of the horizontal rod (18).

8. A floating breakwater effective to reduce long period waves according to claim 1, wherein, The left and right sides of the disc (25) are fixedly connected with limiting tables (28) on the sides away from each other, and the upper and lower ends of the limiting table (28) are respectively and obliquely abutted on the sides, close to each other, of the upper and lower connecting plates (26).

Images