Offshore floating photovoltaic flexible connection structure

Abstract

The utility model relates to the field of offshore floating photovoltaic technology, and discloses an offshore floating photovoltaic flexible connection structure, which comprises four buoyancy tanks arranged at equal intervals, mounting grooves are arranged around the buoyancy tanks, hinge shafts are fixedly mounted on the inner walls of the mounting grooves, flexible assemblies are arranged among the inner sides of the four buoyancy tanks, and the flexible assemblies are connected with the mounting grooves. A photovoltaic panel is fixedly installed at the top of the buoyancy tank, an anchor chain is movably installed at one corner of the buoyancy tank through a hinged shaft, and an anchorage device is movably installed at the other end of the anchor chain. During rigid connection, the backward pulling fixing ring compresses the pushing spring, and then the inserting rod is rotated to be aligned with the earhole plate; when the buoyancy tank is moored, the force applied to the fixing ring is released, the pushing spring drives the inserting rod to be inserted into the lug hole plate, the ball sleeve and the ball head can be locked, and then flexible connection between the connecting rod and the air spring is changed into rigid connection, so that collision between the adjacent buoyancy tanks during mooring is reduced, and the service life of the buoyancy tanks is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore floating photovoltaic technology, and specifically relates to a flexible connection structure for offshore floating photovoltaic. Background Technique

[0002] The basic principle of offshore floating photovoltaic technology is to use solar panels to convert sunlight into electric energy. The photovoltaic panels float on the water surface and rotate or adjust the angle as the sun's angle changes to maintain the best angle with the sun, thereby improving the power generation efficiency.

[0003] At present, the floating body designs of floating photovoltaic power stations are diverse, and basically all adopt structural types such as floating pipes + brackets, floating boxes + brackets, etc. Then, an array arrangement method is adopted to splice multiple floating bodies together in a rectangular shape, and then a large-area offshore photovoltaic power plant is formed. However, the floating bodies are connected by chains, and the floating bodies surge with the ocean waves, resulting in collisions between adjacent floating bodies, thereby causing the wave loads directly borne by the floating bodies and increasing the stress levels on the connecting parts. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the utility model provides a flexible connection structure for offshore floating photovoltaic, which has the advantages of using a flexible connection for the floating body to reduce wave impact, and using a rigid connection for mooring the floating body to reduce the impact between floating bodies, and solves the above problems.

[0006] (II) Technical Solutions

[0007] To achieve the purpose of using a flexible connection for the floating body to reduce wave impact and using a rigid connection for mooring the floating body to reduce the impact between floating bodies, the utility model provides the following technical solution: A flexible connection structure for offshore floating photovoltaic, including four floating boxes arranged at equal intervals. Installation grooves are opened around the floating boxes, hinge shafts are fixedly installed on the inner walls of the installation grooves, a flexible component is arranged between the inner sides of the four floating boxes, photovoltaic panels are fixedly installed on the tops of the floating boxes, an anchor chain is movably installed at a corner of the floating box through a hinge shaft, and the other end of the anchor chain is movably installed with an anchor.

[0008] Preferably, the flexible component includes a shaft sleeve sleeved on the outside of the hinge shaft, a connecting rod is fixedly installed on the side surface of the shaft sleeve, a ball sleeve is fixedly installed at the other end of the connecting rod, and two symmetrically arranged ear hole plates are fixedly installed on the outside of the ball sleeve.

[0009] Preferably, a ball head is movably installed inside the ball sleeve, a connecting shaft is fixedly installed on one side of the ball head, a limiting plate is fixedly installed on the outside of the connecting shaft, and an air spring is fixedly installed at the other end of the connecting shaft.

[0010] Preferably, a push spring is sleeved on the outer side of the connecting shaft, a ring is movably sleeved on the outer side of the connecting shaft and located on one side of the push spring, a fixing ring is fixedly installed on the outer side of the ring, and two symmetrically arranged plug rods are fixedly installed on the outer side of the fixing ring.

[0011] Preferably, the insertion rod has an L-shape, and is pushed by a push spring to be inserted into the interior of the two ear hole plates.

[0012] Preferably, the bushing, connecting rod, ball sleeve, ear hole plate, ball head, connecting shaft, limit plate, push spring, collar, fixing ring and insertion rod are symmetrically distributed with the vertical center line of the air spring as the axis.

[0013] Preferably, the air spring is flexibly connected to the connecting rod via a connecting shaft, a ball head and a ball sleeve.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a flexible connection structure for offshore floating photovoltaics, which has the following beneficial effects:

[0016] 1. The flexible connection structure of the offshore floating photovoltaic system, when flexibly connected, compresses the push spring by pulling the fixing ring backward, the fixing ring slides on the connecting shaft through the sleeve ring, and then the direction of the plug rod is rotated to be staggered with the ear hole plate; then the force on the fixing ring is released, the push spring pushes the fixing ring to press against the limit plate, and the plug rod is not inserted into the ear hole plate, the connecting rod and the air spring are movably connected by the ball sleeve and the ball head, and then the connection between the connecting rod and the air spring is changed from a rigid connection to a flexible connection, thereby ensuring the flexible connection characteristics between the entire buoy array, that is, when encountering fluctuations in the marine environment, the elastic deformation of the air spring can effectively absorb and alleviate the relative motion energy between the buoys, thereby significantly reducing the wave load directly borne by the buoy and the stress level of the connecting rod.

[0017] 2. The flexible connection structure of the offshore floating photovoltaic system, when rigidly connected, pull the fixing ring back to compress the push spring, and then rotate the insertion rod to align with the ear hole plate; release the force on the fixing ring, the push spring with the insertion rod inserted into the ear hole plate, the ball sleeve and the ball head will be locked, and then the connection between the connecting rod and the air spring will change from a flexible connection to a rigid connection, thereby reducing the collision between adjacent pontoons during mooring and increasing the service life of the pontoons. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the buoyancy box and the flexible component of the utility model;

[0020] Figure 3 This is a schematic structural view of the flexible component of the present utility model;

[0021] Figure 4 This is a schematic structural view of the connecting rod and the air spring of the present utility model;

[0022] Figure 5 This is an exploded schematic structural view of the flexible component of the present utility model;

[0023] Figure 6 This is a schematic structural view after the insertion rod rotates 90 degrees of the present utility model.

[0024] In the figure: 1. Float box; 2. Installation groove; 3. Hinge shaft; 4. Flexible component; 5. Photovoltaic panel; 6. Anchor chain; 7. Anchor; 41. Bush; 42. Connecting rod; 43. Ball socket; 44. Ear hole plate; 45. Ball head; 46. Connecting shaft; 47. Limiting plate; 48. Air spring; 49. Thrust spring; 410. Collar; 411. Fixed ring; 412. Insertion rod. Specific embodiments

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] Please refer to Figure 1-2 , a flexible connection structure for a floating photovoltaic system at sea, comprising four float boxes 1 arranged at equal intervals. Installation grooves 2 are provided around the float boxes 1, and the cross-section of the installation grooves 2 is a quarter-sector shape of a circle; a hinge shaft 3 is fixedly installed on the inner wall of the installation grooves 2. A flexible component 4 is arranged between the inner sides of the four float boxes 1. The flexible components 4 form a "mouth" shape, and the other two corners of the float boxes 1 are also connected by the flexible component 4; a photovoltaic panel 5 is fixedly installed on the top of the float box 1. One corner of the float box 1 is movably installed with an anchor chain 6 through the hinge shaft 3, and the other end of the anchor chain 6 is movably installed with an anchor 7.

[0027] Please refer to Figures 3-6 , the flexible component 4 includes a bush 41 sleeved on the outer side of the hinge shaft 3. A connecting rod 42 is fixedly installed on the side of the bush 41, and the other end of the connecting rod 42 is fixedly installed with a ball socket 43. Two symmetrically arranged ear hole plates 44 are fixedly installed on the outer side of the ball socket 43.

[0028] Please refer toFigures 3-6 A ball head 45 is movably installed inside the ball sleeve 43, a connecting shaft 46 is fixedly installed on one side of the ball head 45, a limit plate 47 is fixedly installed on the outer side of the connecting shaft 46, and an air spring 48 is fixedly installed on the other end of the connecting shaft 46; when the flexible connection is made, the air spring 48 is used to absorb the force transmitted from the connecting rod 42 and the connecting shaft 46. At the same time, the establishment of the connecting rod 42 and the connecting shaft 46 can reduce the collision between the buoys 1 more than the traditional chain connection method.

[0029] See also Figures 3-6 A push spring 49 is sleeved on the outer side of the connecting shaft 46, and a ring 410 is movably sleeved on the outer side of the connecting shaft 46 and located on one side of the push spring 49. A fixing ring 411 is fixedly installed on the outer side of the ring 410, and two symmetrically set plug rods 412 are fixedly installed on the outer side of the fixing ring 411. The plug rods 412 are L-shaped in shape, and the plug rods 412 are pushed by the push spring 49 to be inserted into the interior of the two ear hole plates 44.

[0030] See also Figures 3-6 The sleeve 41, connecting rod 42, ball sleeve 43, ear hole plate 44, ball head 45, connecting shaft 46, limit plate 47, push spring 49, collar 410, fixing ring 411 and insert rod 412 are symmetrically distributed with the vertical center line of the air spring 48 as the axis; the air spring 48 is flexibly connected to the connecting rod 42 through the connecting shaft 46, ball head 45 and ball sleeve 43.

[0031] When in use, during the flexible connection, the push spring 49 is compressed by pulling back the fixing ring 411, and the fixing ring 411 slides on the connecting shaft 47 through the sleeve ring 410, and then the direction of the rotating rod 412 is staggered with the ear hole plate 44; thereafter, the force on the fixing ring 411 is released, and the push spring 49 pushes the fixing ring 411 to press against the limit plate 46, while the insert rod 412 is not inserted into the ear hole plate 44, and the connecting rod 42 and the air spring 48 are movably connected by the ball sleeve 43 and the ball head 45, and then the connection between the connecting rod 42 and the air spring 48 changes from a rigid connection to a flexible connection, thereby ensuring the flexible connection characteristics between the entire buoyancy tank 1 array, that is, when encountering fluctuations in the marine environment, the elastic deformation of the air spring 48 can effectively absorb and alleviate the relative motion energy between the buoyancy tanks 1, thereby significantly reducing the wave load directly borne by the buoyancy tank 1 and the stress level of the connecting rod 42.

[0032] When in rigid connection, the rear pull fixing ring 411 compresses the push spring 49, and then rotates the position of the plug rod 412 to align with the ear hole plate 44; release the force applied to the fixing ring 411, the push spring 49 drives the plug rod 412 to insert into the ear hole plate 44, and the ball sleeve 43 and the ball head 45 will be locked. Subsequently, the flexible connection between the connecting rod 42 and the air spring 48 becomes a rigid connection, thereby reducing the collision between adjacent floating boxes 1 during mooring and improving the service life of the floating box 1.

[0033] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible connection structure for offshore floating photovoltaics, comprising four buoys (1) arranged at equal intervals, characterized in that: The buoyancy box (1) is provided with mounting grooves (2) on all sides, a hinge shaft (3) is fixedly mounted on the inner wall of the mounting groove (2), a flexible component (4) is arranged between the inner sides of the four buoyancy boxes (1), a photovoltaic panel (5) is fixedly mounted on the top of the buoyancy box (1), an anchor chain (6) is movably mounted on one corner of the buoyancy box (1) via the hinge shaft (3), and an anchor (7) is movably mounted on the other end of the anchor chain (6).

2. The flexible connection structure of an offshore floating photovoltaic system according to claim 1, characterized in that: The flexible component (4) comprises an upper shaft sleeve (41) sleeved on the outer side of the hinge shaft (3); a connecting rod (42) is fixedly mounted on the side of the shaft sleeve (41); a ball sleeve (43) is fixedly mounted on the other end of the connecting rod (42); and two symmetrically arranged ear hole plates (44) are fixedly mounted on the outer side of the ball sleeve (43).

3. The flexible connection structure of an offshore floating photovoltaic system according to claim 2, characterized in that: A ball head (45) is movably mounted inside the ball sleeve (43), a connecting shaft (46) is fixedly mounted on one side of the ball head (45), a limiting plate (47) is fixedly mounted on the outside of the connecting shaft (46), and an air spring (48) is fixedly mounted on the other end of the connecting shaft (46).

4. The flexible connection structure of an offshore floating photovoltaic system according to claim 3, characterized in that: A push spring (49) is sleeved on the outer side of the connecting shaft (46), a collar (410) is movably sleeved on the outer side of the connecting shaft (46) and located on one side of the push spring (49), a fixing ring (411) is fixedly installed on the outer side of the collar (410), and two symmetrically arranged insertion rods (412) are fixedly installed on the outer side of the fixing ring (411).

5. The flexible connection structure of an offshore floating photovoltaic system according to claim 4, characterized in that: The insert rod (412) has an L-shaped appearance, and the insert rod (412) is pushed by the push spring (49) to be inserted into the interior of the two ear hole plates (44).

6. The flexible connection structure of an offshore floating photovoltaic system according to claim 4, characterized in that: The shaft sleeve (41), the connecting rod (42), the ball sleeve (43), the ear hole plate (44), the ball head (45), the connecting shaft (46), the limit plate (47), the push spring (49), the collar (410), the fixing ring (411) and the insertion rod (412) are symmetrically distributed with the vertical center line of the air spring (48) as the axis.

7. The flexible connection structure of an offshore floating photovoltaic system according to claim 4, characterized in that: The air spring (48) is flexibly connected to the connecting rod (42) via a connecting shaft (46), a ball head (45) and a ball sleeve (43).

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