Connector between large floating body structures and offshore photovoltaic power generation platform

Abstract

The utility model relates to a connector between large floating body structures and an offshore photovoltaic power generation platform. The connector comprises a first shaft rod, a second shaft rod, a third shaft rod, a fourth shaft rod, a fifth shaft rod and a connecting arm. The first shaft rod and the second shaft rod are used for being connected to the two adjacent large floating body structures correspondingly. And the third shaft rod is rotatably connected with the second shaft rod through the first connecting lug plate. And one end of the fourth shaft rod is rotatably connected with the first shaft rod through a second connecting lug plate. The fifth shaft rod is connected with the other end of the fourth shaft rod through a third connecting lug plate. The connecting arm is rotatably connected between the third shaft rod and the fifth shaft rod. The dead weight of the connecting arm is adjustable. Three-degree-of-freedom free rotation between two adjacent large floating body structures is achieved through the five shaft rods, and relative movement between the two adjacent large floating body structures is effectively eliminated. Reliable connection between the two adjacent floating body structures is guaranteed through the connecting arms, and the safety of the floating body structure array is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of marine engineering, in particular to a connector between large floating structures and an offshore photovoltaic power generation platform. Background Art

[0002] Floating photovoltaic is a photovoltaic power generation technology that can deploy photovoltaic facilities on the surface of water bodies such as sea, lakes, reservoirs, tailings ponds, and agricultural irrigation reservoirs. Compared with traditional land-based photovoltaic systems, floating photovoltaic integrates existing solar power generation technology and water surface floating technology.

[0003] Offshore solar photovoltaic power generation has many advantages, such as being able to save land resources to a great extent and not causing too much impact on the water ecological environment; short installation period and high installation efficiency; less surface dust coverage and high power generation efficiency, etc. Therefore, offshore floating photovoltaic power generation has gradually become the focus of research in recent years.

[0004] At present, large floating structures are the main structural form of offshore floating photovoltaics. However, due to the low power density of photovoltaic power generation itself, photovoltaic power plants must have sufficient carriers to meet the needs of large-scale laying of photovoltaic panels. This means that a photovoltaic power plant will be composed of dozens or even hundreds of large floating structures, which are eventually connected to form a large floating array. As a key component of the entire floating array, the connectors between the floating structures are not only required in large numbers, but also bear huge wave loads. Their structural strength is related to the reliable connection and safety of the entire floating array, and also has a great impact on the economic efficiency of the entire project.

[0005] At present, there are mainly two types of connectors between large floating structures: rigid connectors and flexible connectors. Among them, flexible connectors can only withstand the tension between floating structures and cannot play an anti-collision role. Therefore, they have certain limitations and cannot solve engineering problems well. Rigid connectors also have disadvantages such as complex structure, high cost, and small connection range. Moreover, the range of variation of wave periods in the sea is usually large, and the self-vibration period of the floating array will inevitably coincide with the wave period, resulting in resonance. This will greatly increase the connection force between floating structures. Therefore, designing a connector with a reasonable structure, clear force, and cost-effectiveness has become a key issue that needs to be urgently solved in the industrialization of offshore floating photovoltaics. Utility Model Content

[0006] One purpose of the utility model is to solve the deficiencies in the prior art and provide a connector between large floating structures. To solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A connector between large floating structures, used to connect two adjacent large floating structures; the connector comprises:

[0008] A first shaft rod, which is used to be connected to one of the large floating structures, and the first shaft rod is arranged along a first direction;

[0009] A second shaft rod, which is used to be connected to another large floating structure, and the second shaft rod is arranged along the first direction;

[0010] A third shaft rod, which is rotatably connected to the second shaft rod through the first connecting ear plate, and the third shaft rod is arranged along a second direction perpendicular to the first direction;

[0011] a fourth shaft rod, one end of which is rotatably connected to the first shaft rod through a second connecting ear plate, and an axial direction of the fourth shaft rod is perpendicular to the first direction and the second direction;

[0012] a fifth shaft rod connected to the other end of the fourth shaft rod through a third connecting ear plate, the fifth shaft rod being parallel to the third shaft rod; and

[0013] The connecting arm has one end rotatably connected to the first connecting ear plate through the third shaft rod, and the other end rotatably connected to the third connecting ear plate through the fifth shaft rod. The deadweight of the connecting arm is adjustable.

[0014] In one embodiment, a first axial hole is provided at one end of the first connecting ear plate, and a second axial hole is provided at the other end. The first axial hole and the second axial hole are arranged vertically. The first axial hole is used to pass the second axial rod, and the second axial hole is used to pass the third axial rod.

[0015] In one embodiment, a third axial hole is provided at one end of the second connecting ear plate, and a fourth axial hole is provided at the other end, the third axial hole and the fourth axial hole are arranged vertically, the third axial hole is used to pass the first axial rod, and the fourth axial hole is used to pass the fourth axial rod.

[0016] In one embodiment, the fourth shaft rod is fixedly connected to the third connecting ear plate, and a fifth shaft hole is provided at one end of the third connecting ear plate away from the fourth shaft rod. The fifth shaft hole is arranged perpendicular to the axial direction of the fourth shaft rod, and the fifth shaft hole is used to pass the fifth shaft rod.

[0017] In one embodiment, two connecting through holes are respectively provided at both ends of the connecting arm, and the two connecting through holes are used to pass the third shaft rod and the fifth shaft rod respectively.

[0018] In one embodiment, at least one end of the connecting arm is detachable from the corresponding shaft rod.

[0019] In one embodiment, the first shaft and the second shaft are arranged symmetrically;

[0020] The third shaft rod and the fifth shaft rod are arranged symmetrically.

[0021] In one of the embodiments, the connecting arm includes a shell, and a regulating water tank for storing water is provided in the shell. The regulating water tank can take in water or discharge water to adjust the weight of the connecting arm.

[0022] In one embodiment, the connector further includes a regulating water pump and a wave sensor, and the regulating water pump is connected to the regulating water tank for filling water into the regulating water tank or discharging water out of the regulating water tank;

[0023] The wave sensor is arranged on the connecting arm and is connected to the regulating water pump control. The wave sensor is used for real-time monitoring of sea wave information to control the operation of the regulating water pump.

[0024] Another object of the utility model is to provide an offshore photovoltaic power generation platform, comprising a plurality of large floating structures distributed in an array and a plurality of connectors as described in any one of the above items;

[0025] Each large floating structure includes a floating column, and each connector is connected between the floating columns of two adjacent large floating structures.

[0026] It can be seen from the above technical solution that the utility model has at least the following advantages and positive effects:

[0027] In the utility model, the connector includes a first shaft rod, a second shaft rod, a third shaft rod, a fourth shaft rod and a fifth shaft rod which are connected to each other. The five shaft rods realize three degrees of rotational freedom between two adjacent large floating structures, effectively eliminating the relative movement between the two adjacent large floating structures.

[0028] The third shaft rod and the fifth shaft rod are connected by a connecting arm, which prolongs the force arm and strengthens the connection. There is no need to worry about the two large floating structures being pulled or separated from each other and colliding when being pulled. By using the connector of the present application, a reliable connection between two adjacent floating structures is ensured, the load between the floating structures under the action of strong waves is weakened, and the safety of the floating structure array is improved.

[0029] In addition, the deadweight of the connecting arm is adjustable, so that the natural vibration period of the connector and the floating structure it is connected to can be changed as needed, thereby effectively avoiding the wave period, avoiding resonance, reducing structural stress, improving the reliability of the connector, and improving the safety of the interconnection between floating structures. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of a state in which a connector according to an embodiment of the utility model is applied to connect two adjacent large floating structures.

[0031] Figure 2 It is a structural schematic diagram of a connector in one embodiment of the utility model connected between two floating body columns.

[0032] Figure 3 yes Figure 2 The schematic diagram of the structure of the connector shown is viewed along the Y-axis direction.

[0033] Figure 4 yes Figure 2 The schematic diagram of the structure of the connector shown is viewed along the Z-axis direction.

[0034] Figure 5 yes Figure 3 An enlarged schematic diagram of point A in the structure shown.

[0035] Figure 6 yes Figure 4 An enlarged schematic diagram of point B in the structure shown.

[0036] Figure 7 yes Figure 2 Schematic diagram of the structure of the connecting arm of the connector shown.

[0037] The following are the descriptions of the reference numerals:

[0038] 10-Large floating structure; 20-Connector;

[0039] 110-first shaft; 120-second shaft; 130-third shaft; 140-fourth shaft; 150-fifth shaft; 160-connecting arm; 161-connecting through hole; 162-housing; 163-adjusting water tank;

[0040] 170-first connecting ear plate; 171-first axial hole; 172-second axial hole;

[0041] 180 - second connecting ear plate; 181 - third axial hole; 182 - fourth axial hole;

[0042] 190 - third connecting ear plate; 191 - fifth shaft hole;

[0043] 200-floating column; 210-first connecting seat; 211-first seat body; 220-second connecting seat; 221-second seat body;

[0044] 300- regulating water pump; 400- wave sensor;

[0045] 500-locking block; 600-limit block. DETAILED DESCRIPTION

[0046] Typical embodiments that embody the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various changes in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present invention.

[0047] In the description of the present application, it should be understood that in the embodiments shown in the drawings, the indications of directions or positional relationships (such as up, down, left, right, front and back, etc.) are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the drawings. If the descriptions of the positions of these elements change, the indications of these directions also change accordingly.

[0048] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0049] See also Figure 1 As shown, an embodiment of the utility model provides an offshore photovoltaic power generation platform, including a plurality of large floating structures 10 and a plurality of connectors 20 distributed in an array. Each connector 20 is used to connect two adjacent large floating structures 10. It can be understood that two adjacent large floating structures 10 can be connected by one, two or more connectors 20.

[0050] The specific embodiment of the connector 20 of the present application is described in detail below with reference to the accompanying drawings.

[0051] See also Figure 2 As shown, a connector 20 between large floating structures according to an embodiment includes a first shaft 110 , a second shaft 120 , a third shaft 130 , a fourth shaft 140 , a fifth shaft 150 and a connecting arm 160 .

[0052] The first shaft 110 is used to be connected to one of the large floating structures 10. The first shaft 110 is arranged along a first direction.

[0053] like Figure 2 As shown, in the embodiment of the present application, the first direction is specifically described as a vertical direction. Specifically, the first direction is a Z-axis direction. It can be understood that in other embodiments, the first direction can also be a horizontal direction.

[0054] The large floating structure 10 includes a floating column 200 , on which a first connection seat 210 is fixedly disposed. The first shaft 110 is installed on the first connection seat 210 .

[0055] Specifically, the first connection seat 210 includes two first seat bodies 211 spaced apart along the first direction. Each first seat body 211 is provided with a through hole for passing the first shaft rod 110. Both ends of the first shaft rod 110 are respectively passed through the corresponding through holes to be connected to the two first seat bodies 211 respectively.

[0056] like Figure 3 and Figure 5 As shown, each first seat body 211 may include two pin lugs arranged in parallel and at intervals. A through hole for penetrating the first shaft hole 171 is provided on each of the two pin lugs. The two pin lugs may be connected by a reinforcing web. Each pin lug may be welded and fixed to the floating column 200. In this embodiment, by designing the first seat body 211 to include two pin lugs and a reinforcing web, the structural strength of the first seat body 211 is ensured, while the deadweight of the first seat body 211 is reduced, and the material of the first seat body 211 is convenient to obtain.

[0057] In other embodiments, the first base body 211 may also be a whole steel plate structure, on which a through hole for passing the first shaft 110 is opened.

[0058] Specifically, the first shaft 110 may be a pin structure, at least one end of which is fixedly provided with a shaft cap.

[0059] like Figure 5 As shown, one end of the first shaft rod 110 is fixed with a shaft cap, and the other end is a shaft end. When the first shaft rod 110 is installed with the first connecting seat 210, the shaft end of the first shaft rod 110 can pass through the through holes of the two first seat bodies 211 in sequence. Then, the shaft end of the first shaft rod 110 is connected to the first seat body 211 by using the locking block 500 and the fastening screw. In this embodiment, the first shaft rod 110 and the first connecting seat 210 are detachably connected. This facilitates the installation and removal of the first shaft rod 110 and the floating column 200.

[0060] In other embodiments, both ends of the first shaft rod 110 may be fixed with shaft caps. When the first shaft rod 110 and the first connecting seat 210 are installed, one end of the first shaft rod 110 may be fixed with a shaft cap in advance, and the other end is passed through the through holes of the two first seats 211 in sequence. Another shaft cap is then welded and fixed to the other end of the first shaft rod 110. In this embodiment, the first shaft rod 110 and the first connecting seat 210 are non-detachably rotatably connected.

[0061] See also Figure 2 As shown, the second shaft rod 120 is used to be connected to another large floating structure 10. The second shaft rod 120 is arranged along the first direction (ie, the Z-axis direction).

[0062] Specifically, the large floating structure 10 includes a floating column 200 , on which a second connection seat 220 is fixedly disposed. The second shaft rod 120 is mounted on the second connection seat 220 .

[0063] The second connection seat 220 may include two second seat bodies 221 spaced apart along the first direction. Each second seat body 221 may be provided with a through hole for passing the second shaft rod 120. Both ends of the second shaft rod 120 are respectively passed through the corresponding through holes to be connected to the two second seat bodies 221 respectively.

[0064] In the embodiment of the present application, the structure of the second connection socket 220 may be the same as that of the first connection socket 210 .

[0065] Of course, in other embodiments, the structure of the second connection socket 220 may also be different from the structure of the first connection socket 210 .

[0066] In the embodiment of the present application, the structure of the second shaft 120 may be the same as that of the first shaft 110 . The installation method of the second shaft 120 and the second connecting seat 220 may be the same as that of the first shaft 110 and the first connecting seat 210 .

[0067] Of course, in other embodiments, the structure of the second shaft rod 120 may be different from that of the first shaft rod 110. The installation method of the second shaft rod 120 and the second connecting seat 220 may be different from that of the first shaft rod 110. For example, the first shaft rod 110 may be detachably connected to the first connecting seat 210. The second shaft rod 120 may be limitedly installed on the second connecting seat 220 by shaft caps welded at both ends thereof, and the second shaft rod 120 and the second connecting seat 220 are not detachable.

[0068] See also Figure 3 As shown, in one embodiment, the first shaft 110 and the second shaft 120 are arranged symmetrically. In this embodiment, assuming that the connector 20 is regarded as a whole, the first shaft 110 and the second shaft 120 are symmetrical about a straight line passing through the center point of the connector 20. In other words, the first shaft 110 and the second shaft 120 are symmetrical about the structural center point of the connector 20.

[0069] See also Figure 2 As shown, the third shaft 130 can be rotatably connected to the second shaft 120 through the first connecting ear plate 170. The third shaft 130 is arranged along a second direction perpendicular to the first direction. Figure 2 As shown, in this embodiment, the second direction is the Y-axis direction.

[0070] In one embodiment, a first shaft hole 171 is disposed at one end of the first connecting ear plate 170. The first shaft hole 171 is used to pass the second shaft rod 120.

[0071] In this embodiment, Figure 3 As shown, the first connecting ear plate 170 is sleeved on the second shaft rod 120 through the first shaft hole 171. The first connecting ear plate 170 and the second shaft rod 120 can rotate relative to each other. At this time, as described above, the second shaft rod 120 and the second connecting seat 220 can be detachably connected. Alternatively, the second shaft rod 120 and the second connecting seat 220 can also be non-detachably rotatably connected.

[0072] In other embodiments, the first connecting ear plate 170 may not be provided with the first shaft hole 171. The first connecting ear plate 170 may be integrally formed with the second shaft rod 120. In this case, the second shaft rod 120 and the second connecting seat 220 are rotatably connected.

[0073] See also Figure 4 As shown, the other end of the first connecting ear plate 170 is provided with a second axial hole 172. The first axial hole 171 and the second axial hole 172 are arranged vertically. That is, the first axial hole 171 is arranged along the Z-axis direction, and the second axial hole 172 is arranged along the Y-axis direction.

[0074] The second shaft hole 172 is used to pass the third shaft rod 130. Specifically, the structure of the third shaft rod 130 may be similar to that of the first shaft rod 110. That is, the third shaft rod 130 may be a pin structure with a shaft cap fixedly disposed at at least one end.

[0075] The installation method of the third shaft 130 and the first connecting ear plate 170 may be the same as the installation method of the first shaft 110 and the first connecting seat 210. That is, the third shaft 130 may be detachably connected to the first connecting ear plate 170. Alternatively, the third shaft 130 may be rotatably connected to the first connecting ear plate 170 in a non-detachable manner.

[0076] See also Figure 2 As shown, one end of the fourth shaft rod 140 can be rotatably connected to the first shaft rod 110 through the second connecting ear plate 180. The axial direction of the fourth shaft rod 140 is perpendicular to the first direction and the second direction. Figure 2 As shown, in this embodiment, the axial direction of the fourth shaft rod 140 extends along the X-axis direction which is perpendicular to the Y-axis direction and the Z-axis direction.

[0077] Combination Figure 5 As shown, in one embodiment, a third shaft hole 181 is provided at one end of the second connecting ear plate 180. The third shaft hole 181 is used to pass the first shaft rod 110.

[0078] In this embodiment, the second connecting ear plate 180 is sleeved on the outside of the first shaft rod 110 through the third shaft hole 181. The second connecting ear plate 180 and the first shaft rod 110 can rotate relative to each other. At this time, as described above, the first shaft rod 110 and the first connecting seat 210 can be detachably connected. Alternatively, the first shaft rod 110 and the first connecting seat 210 can also be non-detachably rotatably connected.

[0079] In other embodiments, the second connecting ear plate 180 may not be provided with the third shaft hole 181. The second connecting ear plate 180 may be formed integrally with the first shaft rod 110. In this case, the first shaft rod 110 and the first connecting seat 210 are rotatably connected.

[0080] See also Figure 5 As shown, the other end of the second connecting ear plate 180 is provided with a fourth axial hole 182. The third axial hole 181 and the fourth axial hole 182 are arranged vertically. That is, the third axial hole 181 is arranged along the Z axis direction. The fourth axial hole 182 is arranged along the X axis direction.

[0081] The fourth shaft hole 182 is used to pass the fourth shaft rod 140. Specifically, Figure 5 As shown, one end of the fourth shaft rod 140 is inserted into the fourth shaft hole 182 of the second connecting ear plate 180. The portion of the fourth shaft rod 140 protruding from the fourth shaft hole 182 is fixed by a stop block 600 and fasteners such as bolts, so that the fourth shaft rod 140 and the second connecting ear plate 180 are detachably connected in rotation.

[0082] See also Figure 2 As shown, the fifth shaft 150 can be connected to the other end of the fourth shaft 140 through the third connecting ear plate 190. The fifth shaft 150 is parallel to the third shaft 130. That is, the axial direction of the fifth shaft 150 extends along the Y-axis direction.

[0083] Combination Figure 5 As shown, in one embodiment, the fourth shaft 140 is fixedly connected to the third connecting ear plate 190. In this embodiment, the fourth shaft 140 and the third connecting ear plate 190 can be an integrally formed structure. Alternatively, the fourth shaft 140 and the third connecting ear plate 190 are fixed by welding.

[0084] In other embodiments, the fourth shaft 140 and the third connecting ear plate 190 may be rotatably connected. Specifically, the third connecting ear plate 190 is provided with an axial hole for passing the fourth shaft 140, and the axial hole is arranged along the X-axis direction. One end of the fourth shaft 140 is rotatably connected to the third connecting ear plate 190 in a detachable or non-detachable manner.

[0085] See also Figure 6A fifth shaft hole 191 is provided at one end of the third connecting ear plate 190 away from the fourth shaft rod 140. The fifth shaft hole 191 is arranged perpendicular to the axial direction of the fourth shaft rod 140. That is, the fifth shaft hole 191 is arranged along the Y-axis direction.

[0086] The fifth shaft hole 191 is used to pass through the fifth shaft rod 150. Specifically, the structure of the fifth shaft rod 150 may be similar to that of the third shaft rod 130. That is, the fifth shaft rod 150 may be a pin structure with a shaft cap fixedly disposed at at least one end.

[0087] The installation method of the fifth shaft 150 and the third connecting ear plate 190 may be the same as the installation method of the third shaft 130 and the first connecting ear plate 170. That is, the fifth shaft 150 may be detachably connected to the third connecting ear plate 190. Alternatively, the fifth shaft 150 may be rotatably connected to the third connecting ear plate 190 in a non-detachable manner.

[0088] See also Figure 2 As shown, one end of the connecting arm 160 is rotatably connected to the first connecting ear plate 170 through the third shaft 130. The other end of the connecting arm 160 is rotatably connected to the third connecting ear plate 190 through the fifth shaft 150.

[0089] In one embodiment, see Figure 6 As shown, two connecting through holes 161 may be respectively provided at both ends of the connecting arm 160. The two connecting through holes 161 are respectively used to penetrate the third shaft rod 130 and the fifth shaft rod 150. In this embodiment, one end of the connecting arm 160 is sleeved outside the third shaft rod 130 through the connecting through hole 161. The connecting arm 160 and the third shaft rod 130 can rotate relative to each other.

[0090] The other end of the connecting arm 160 is sleeved outside the fifth shaft rod 150 through another connecting through hole 161. The connecting arm 160 and the fifth shaft rod 150 can rotate relative to each other.

[0091] In the present application, at least one end of the connecting arm 160 is detachable from the corresponding shaft rod. It is understood that the connecting arm 160 can be detachably connected to the third shaft rod 130. Alternatively, the connecting arm 160 can be detachably connected to the fifth shaft rod 150. Alternatively, the connecting arm 160 can be detachably connected to both the third shaft rod 130 and the fifth shaft rod 150.

[0092] Take the example of a detachable connection between the connecting arm 160 and the fifth shaft rod 150. Figure 6As shown, since the connecting arm 160 is sleeved on the outside of the fifth shaft 150 through the connecting through hole 161, as described above, under the premise that the fifth shaft 150 and the third connecting ear plate 190 are detachably connected through the locking block 500, when the fifth shaft 150 is removed from the third connecting ear plate 190, the connecting arm 160 can also be removed from the fifth shaft 150. When the fifth shaft 150 is connected to the third connecting ear plate 190, the connecting arm 160 is rotatably connected to the fifth shaft 150.

[0093] In other embodiments, when there is no need for disassembly, the third shaft 130 may be integrally formed at the end of the connecting arm 160. Alternatively, the third shaft 130 may be integrally formed on the first connecting ear plate 170. That is, in the present application, the third shaft 130 is not limited to being an independent component.

[0094] In other embodiments, when there is no need for disassembly, the fifth shaft 150 may be integrally formed at the end of the connecting arm 160. Alternatively, the fifth shaft 150 may also be integrally formed and disposed on the third connecting ear plate 190. That is, in the present application, the fifth shaft 150 is not limited to being an independent component.

[0095] See also Figure 4 In one embodiment, the third shaft 130 and the fifth shaft 150 are arranged symmetrically. In this embodiment, assuming that the connector 20 is regarded as a whole, the third shaft 130 and the fifth shaft 150 are symmetrical about a straight line passing through the center point of the connector 20. In other words, the third shaft 130 and the fifth shaft 150 are symmetrical about the structural center point of the connector 20.

[0096] by Figure 3 From the perspective shown, when installing the connector 20 of the embodiment of the utility model, first weld the pin lugs of the first connection seat 210 to the left floating body column 200, and then install the first shaft 110 and the second connection lug 180. The second connection seat 220 and the second shaft 120 on the right floating body column 200, as well as the first connection lug 170, are installed in the same way. Then, the third connection lug 190 is connected to the second connection lug 180 through the fourth shaft 140.

[0097] Then the fifth shaft rod 150 and the connecting arm 160 are connected to the third connecting ear plate 190. Alternatively, the third shaft rod 130 and the connecting arm 160 can also be connected to the first connecting ear plate 170. The above work can be completed in advance at the construction site of the floating structure.

[0098] When the structural components are finally transported to the sea for connection, if the fifth shaft rod 150 and the connecting arm 160 have been connected to the third connecting ear plate 190 in advance, it is only necessary to connect the connecting arm 160 and the third shaft rod 130 to the first connecting ear plate 170 .

[0099] Alternatively, if the third shaft rod 130 and the connecting arm 160 have been connected to the first connecting ear plate 170 in advance, it is only necessary to connect the connecting arm 160 and the fifth shaft rod 150 to the third connecting ear plate 190 .

[0100] Of course, in other embodiments, the connection of the connecting arm 160 with the third shaft 130 and the fifth shaft 150 can also be completed at sea. Alternatively, the third connecting ear plate 190, the fifth shaft 150, the connecting arm 160 and the third shaft 130 can be pre-connected with the first connecting ear plate 170. Finally, during the offshore installation, the fourth shaft 140 can be connected to the second connecting ear plate 180. Therefore, the connector 20 of the present application has flexible and changeable installation methods, and is convenient and fast to install at sea.

[0101] In the embodiment of the present application, the connector 20 is used to connect two adjacent large floating structures 10. The connector 20 is usually installed on the floating column 200 of each floating structure 10. The height of the connector 20 installation is not limited, whether it is at the bottom, middle or top of the floating column 200.

[0102] All components of the connector 20, including the first shaft 110, the second shaft 120, the third shaft 130, the fourth shaft 140, the fifth shaft 150 and the connecting arm 160, as well as the pin lugs supporting the shafts and the connecting lugs connecting the shafts, are all steel structures.

[0103] In one embodiment of the present invention, the deadweight of the connecting arm 160 is adjustable. By making the deadweight of the connecting arm 160 adjustable as required, the natural vibration period of the entire floating body system can be changed as required.

[0104] It should be noted that Figure 1 As shown in the example, the floating system described in this embodiment includes each connector 20 and two large floating structures 10 connected thereto. Of course, if multiple large floating structures 10 are connected together through multiple connectors 20, the floating system includes these large floating structures 10 and connectors 20.

[0105] Since the self-vibration period of the entire floating system can be changed as needed, it is possible to avoid the wave period, avoid resonance between the floating system and the waves, and reduce the stress on the structure. Therefore, the reliability of the connector 20 is higher, and the safety of the interconnection between the floating structures 10 is effectively improved.

[0106] See also Figure 7 As shown, in one embodiment, the connecting arm 160 includes a shell 162, and a regulating water tank 163 for storing water is provided in the shell 162. The regulating water tank 163 can take in water or drain water to adjust the weight of the connecting arm 160. In this embodiment, the connecting arm 160 is a shell structure that is at least partially hollow, and its internal cavity forms the regulating water tank 163 that can store water.

[0107] In other embodiments, the connecting arm 160 may not be configured as a shell structure. For example, the connecting arm 160 may be a steel pipe or steel plate structure. A compartment for storing water may be welded on the connecting arm 160.

[0108] In one embodiment, if Figure 7 As shown, the connector 20 may include a regulating water pump 300. The regulating water pump 300 is connected to the regulating water tank 163, and is used to take water into the regulating water tank 163 or discharge water out of the regulating water tank 163. Specifically, the housing 162 may be provided with a water inlet and outlet connected to the regulating water tank 163. The regulating water pump 300 is connected to the water inlet and outlet to take water into the regulating water tank 163 or discharge water out of the regulating water tank 163.

[0109] In one embodiment, if Figure 7 As shown, the connector 20 may include a wave sensor 400. The wave sensor 400 may be disposed on the connecting arm 160. The wave sensor 400 may be connected to the control of the regulating water pump 300. The wave sensor 400 is used to monitor the sea wave information in real time to control the operation of the regulating water pump 300.

[0110] In other embodiments, the wave sensor 400 may not be disposed on the connecting arm 160. The wave sensor 400 may be disposed on any one of the structural components of the floating system described above.

[0111] When the connector 20 of the embodiment of the utility model is in operation, the wave sensor 400 will capture the wave information and then identify the size of the wave period. When the wave period is close to the natural vibration period of the floating body system, a signal is transmitted to the regulating water pump 300. The weight of the connecting arm 160 is reduced by draining the water in the regulating water tank 163. According to the vibration period formula It can be seen that the smaller the mass of the vibrating body, the shorter the vibration period. Therefore, the weight of the connecting arm 160 is reduced by draining the water in the regulating water tank 163 to achieve the purpose of reducing the natural vibration period of the floating body system. In this way, the natural vibration period of the floating body system can avoid the period of the wave, avoid resonance, and reduce the stress on the structure.

[0112] When the connector 20 of the embodiment of the utility model is designed, the natural vibration period of the floating system can be calculated through structural modeling calculation. Taking the natural vibration period of the floating system design as 4.5s as an example, when the connecting arm 160 is in operation, the regulating water tank 163 inside it is filled with ballast water.

[0113] When the wave sensor 400 recognizes that the wave period is gradually approaching 4.5s, it transmits a signal to the regulating water pump 300, and the regulating water pump 300 gradually discharges the water in the regulating water tank 163. Assuming that after calculation, all the water can be drained to reduce the natural vibration period of the floating system to 4.1s, at this time the natural vibration period of the floating system has been avoided with the wave period. After that, the waves change, and when it is recognized that the wave period is far away from 4.5s, the regulating water pump 300 pumps seawater into the regulating water tank 163 again to restore the floating system to the designed natural vibration period.

[0114] It can be seen from the above technical solutions that the connector 20 between large floating structures and the offshore photovoltaic power generation platform of the embodiment of the utility model have at least the following beneficial effects:

[0115] The connector 20 of the embodiment of the utility model solves the connection problem between multiple floating structures 10 under complex marine environment conditions, laying a key technical foundation for the promotion of offshore floating photovoltaics.

[0116] In the embodiment of the utility model, the connector 20 includes a first shaft rod 110, a second shaft rod 120, a third shaft rod 130, a fourth shaft rod 140 and a fifth shaft rod 150 which are connected to each other. The five shaft rods realize the three degrees of rotational freedom between two adjacent large floating structures 10, effectively eliminating the relative movement between the two adjacent large floating structures 10.

[0117] Specifically, the first shaft 110 and the second shaft 120 can release the freedom of relative movement between two adjacent large floating structures 10 around the Z axis. The third shaft 130 and the fifth shaft 150 can release the freedom of relative movement between two adjacent large floating structures 10 around the Y axis. The fourth shaft 140 can release the freedom of relative torsion between two adjacent large floating structures 10 around the X axis.

[0118] In the embodiment of the utility model, by setting the connecting arm 160 to connect the third shaft 130 and the fifth shaft 150, the force arm is extended, the connection is strengthened, and there is no need to worry about the two large floating structures 10 being pulled or separated and collided with each other when being pulled. Thus, the reliable connection of the two adjacent large floating structures 10 is ensured, the load between the floating bodies under the action of strong waves is weakened, and the safety of the floating structure 10 array is improved.

[0119] In the embodiment of the utility model, the connector 20 is a purely mechanical structure, does not require external power or energy, and has a simple and reliable structure.

[0120] In the embodiment of the utility model, the connector 20 can be installed at a relatively free height, and will not cause position interference with other devices.

[0121] In the embodiment of the utility model, the installation of the connector 20 is relatively simple. The various components of the connector 20, including the first shaft 110, the second shaft 120, the third shaft 130, the fourth shaft 140, the fifth shaft 150, and the various pin lugs and the various connecting lugs, etc., can be welded to the floating column 200 in advance. When connecting at sea, the connection can be made by installing the connecting arm 160. The offshore installation construction is very convenient, which greatly reduces the offshore construction cost.

[0122] The connector 20 of the embodiment of the utility model captures wave information through the wave sensor 400 and realizes automatic weight adjustment of the connecting arm 160 by adjusting the water pump 300. Thus, the natural vibration period of the floating system can be changed, so that the natural vibration period of the floating system and the wave period are avoided, thereby reducing the connection force.

[0123] The above embodiments are merely exemplary descriptions of the structures. The structures in the embodiments are not fixed combination structures. In the absence of structural conflicts, the structures in multiple embodiments can be used in any combination.

[0124] Although the utility model has been described with reference to several typical embodiments, it should be understood that the terms used are illustrative and exemplary, rather than restrictive. Since the utility model can be implemented in a variety of forms without departing from the spirit or essence of the utility model, it should be understood that the above-mentioned embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached claims.

Claims

1. A connector between large floating structures, used to connect two adjacent large floating structures; characterized in that: The connector comprises: A first shaft rod, which is used to be connected to one of the large floating structures, and the first shaft rod is arranged along a first direction; A second shaft rod, which is used to be connected to another large floating structure, and the second shaft rod is arranged along the first direction; a third shaft rod, which is rotatably connected to the second shaft rod through a first connecting ear plate, and the third shaft rod is arranged along a second direction perpendicular to the first direction; a fourth shaft rod, one end of which is rotatably connected to the first shaft rod through a second connecting ear plate, and the axial direction of the fourth shaft rod is perpendicular to the first direction and the second direction; a fifth shaft rod connected to the other end of the fourth shaft rod through a third connecting ear plate, the fifth shaft rod being parallel to the third shaft rod; and A connecting arm, one end of which is rotatably connected to the first connecting ear plate through the third shaft rod, and the other end of which is rotatably connected to the third connecting ear plate through the fifth shaft rod, and the deadweight of the connecting arm is adjustable.

2. The connector between large floating structures according to claim 1, characterized in that: A first axial hole is provided at one end of the first connecting ear plate, and a second axial hole is provided at the other end. The first axial hole and the second axial hole are arranged vertically. The first axial hole is used to pass the second axial rod, and the second axial hole is used to pass the third axial rod.

3. The connector between large floating structures according to claim 1, characterized in that: A third axial hole is provided at one end of the second connecting ear plate, and a fourth axial hole is provided at the other end. The third axial hole and the fourth axial hole are arranged vertically. The third axial hole is used to pass the first shaft rod, and the fourth axial hole is used to pass the fourth shaft rod.

4. The connector between large floating structures according to claim 1, characterized in that: The fourth shaft rod is fixedly connected to the third connecting ear plate. The end of the third connecting ear plate away from the fourth shaft rod is provided with a fifth shaft hole. The fifth shaft hole is arranged perpendicular to the axial direction of the fourth shaft rod. The fifth shaft hole is used to pass the fifth shaft rod.

5. The connector between large floating structures according to claim 1, characterized in that: Two connecting through holes are respectively arranged at both ends of the connecting arm, and the two connecting through holes are respectively used to penetrate the third shaft rod and the fifth shaft rod.

6. The connector between large floating structures according to claim 1, characterized in that: At least one end of the connecting arm is detachable from the corresponding shaft rod.

7. The connector between large floating structures according to claim 1, characterized in that: The first shaft and the second shaft are arranged symmetrically; The third shaft rod and the fifth shaft rod are arranged symmetrically.

8. The connector between large floating structures according to any one of claims 1 to 7, characterized in that: The connecting arm comprises an outer shell, and an adjusting water tank for storing water is arranged inside the outer shell. The adjusting water tank can take in water or discharge water to adjust the weight of the connecting arm.

9. The connector between large floating structures according to claim 8, characterized in that: It also includes a regulating water pump and a wave sensor, wherein the regulating water pump is connected to the regulating water tank and is used to fill water into the regulating water tank or discharge water out of the regulating water tank; The wave sensor is arranged on the connecting arm and is control-connected to the regulating water pump. The wave sensor is used for real-time monitoring of sea wave information to control the operation of the regulating water pump.

10. An offshore photovoltaic power generation platform, characterized in that: It comprises a plurality of large floating structures distributed in an array and a plurality of connectors according to any one of claims 1 to 9; Each of the large floating structures comprises a floating column, and each of the connectors is connected between the floating columns of two adjacent large floating structures.

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