Connecting structure and offshore photovoltaic supporting device

Abstract

The utility model relates to the technical field of new energy, and discloses a connecting structure and an offshore photovoltaic supporting device, and the connecting structure comprises a connecting column which is provided with a guide convex part; a guide groove is formed in the connecting pile, and the guide groove can accommodate the guide convex part; the stop part is fixedly arranged on the connecting column; the movable connecting part is movably arranged on the connecting column in a sleeving mode and located on the side, away from the connecting column, of the stopping part, and a first connecting hole is formed in the movable connecting part; and the fixed connecting part is fixedly arranged on the connecting pile, and a second connecting hole is formed in the fixed connecting part. According to the connecting structure, the connecting column and the connecting pile can be connected through the fastener, the problems that the connecting time is long due to welding connection and a weather window needs to meet welding adjustment can be solved, the connecting process of the connecting column and the connecting pile can be simplified, and the connecting efficiency is improved. And potential safety hazards caused by substandard welding quality can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy, and in particular to a connection structure and an offshore photovoltaic support device. Background Art

[0002] With the rapid development of onshore photovoltaics, the sites suitable for photovoltaic construction are becoming fewer and fewer. The sea has vast areas and good sunshine conditions, thus becoming a hot area in the new energy industry.

[0003] The photovoltaic support device of current offshore photovoltaic projects generally includes an upper module and a lower steel pile foundation. During the installation process, the upper module is hoisted as a whole to the top of the steel pile foundation and connected to the lower steel pile as a whole. In the prior art, the upper module and the lower steel pile foundation are generally connected by welding. However, on-site welding takes a long time and requires a weather window that meets the welding conditions. Utility Model Content

[0004] In view of this, the utility model provides a connection structure and an offshore photovoltaic support device to solve the problem in the prior art that connection by welding takes a long time and requires a weather window that meets the welding conditions.

[0005] In a first aspect, the utility model provides a connection structure, comprising:

[0006] A connecting column having a guide protrusion formed thereon;

[0007] A connecting pile having a guide groove formed thereon, the guide groove being capable of accommodating the guide protrusion;

[0008] A stopper, which is fixedly arranged on the connecting column, and when the guide protrusion is inserted into the guide groove, the stopper abuts against the notch of the guide groove;

[0009] A movable connection part, which is movably sleeved on the connection column and is located on a side of the stopper away from the connection pile, and a first connection hole is formed on the movable connection part;

[0010] The fixed connection part is fixedly arranged on the connection pile, and a second connection hole is formed on the fixed connection part. The first connection hole and the second connection hole can allow a fastener to pass through and connect the connection column and the connection pile.

[0011] Beneficial effects:

[0012] During use of the connection structure of this embodiment, the connection column can be hoisted above the connection pile, the guide protrusion can be inserted into the guide groove, and then the stopper abuts against the notch of the guide groove, so as to pre-position the connection column on the connection pile. The guide protrusion cooperates with the guide groove, which not only facilitates the connection between the connection column and the connection pile, but also pre-positions the connection column and the connection pile, so that the connection structure has temporary wind resistance, ensuring that the sling can be removed after the guide protrusion is connected to the guide groove.

[0013] The stopper abuts against the notch of the guide groove, which can not only limit the insertion depth between the guide protrusion and the guide groove, but also be used to withstand the vertical pressure, that is, the vertical pressure generated by its own weight and wind load, until the wind suction causes a pull force to be generated at the node.

[0014] Then the operator can move the movable connection part to align the first connection hole on the movable connection part with the second connection hole on the fixed connection part, and then pass the fastener through the first connection hole and the second connection hole, and fix the connection column to the connection pile. Since it is difficult to control the rotation angle of the connection column during the lifting process, in this embodiment, the movable connection structure is configured to be movable, and the operator can drive the movable connection part to rotate relative to the connection column to avoid the first connection hole and the second connection hole being unable to align after the connection column is connected to the connection pile. When the movable connection part is connected to the fixed connection part, the stopper can also be used to bear the pulling force generated by wind suction on the connection column.

[0015] Therefore, the connection structure of this embodiment can connect the connecting column and the connecting pile through fasteners, which not only can avoid the long connection time caused by welding connection and the need to meet the weather window for welding adjustment, but also can simplify the connection process between the connecting column and the connecting pile, help reduce the labor intensity of the operator, and avoid the safety hazards caused by substandard welding quality.

[0016] In an optional embodiment, the guide protrusion includes:

[0017] The straight section can transitionally match with the inner peripheral wall of the guide groove;

[0018] The guide section is connected to one end of the straight section away from the stop portion, and the guide section is arranged with a reduced diameter in a direction away from the stop portion.

[0019] Beneficial effects:

[0020] By such arrangement, the guide section can play a guiding role, thereby facilitating the insertion of the guide protrusion and the guide groove. The straight section can cooperate with the inner peripheral wall of the guide groove, thereby bearing the horizontal load generated by the wind load.

[0021] In an optional embodiment, the movable connection portion includes:

[0022] A first connecting ring, which is disposed around the connecting column;

[0023] A first flange is formed on the outer circumference of the first connecting ring and is located at one end of the first connecting ring close to the stopper, and a first connecting hole is formed on the first flange;

[0024] A first stiffening plate is connected between the first connecting ring and the first flange.

[0025] Beneficial effects:

[0026] The first stiffening plate can be used to enhance the structural strength of the movable connecting section, thereby helping to improve the connection strength between the movable connecting section and the fixed connecting section.

[0027] In an optional embodiment, there are multiple first stiffening plates, which are spaced apart along the circumference of the first flange, and at least one first connecting hole is provided between two adjacent first stiffening plates.

[0028] In an optional embodiment, the fixed connection portion includes:

[0029] A second flange is formed on the outer circumference of the connection pile, and a second connection hole is formed on the second flange;

[0030] A second stiffening plate is connected between the second flange and the outer periphery of the connecting pile.

[0031] Beneficial effects:

[0032] The second stiffening plate can be used to enhance the structural strength of the fixed connection portion, thereby improving the connection strength between the movable connection portion and the fixed connection portion.

[0033] In an optional embodiment, there are multiple second stiffening plates, and the multiple second stiffening plates are arranged at intervals along the circumference of the second flange, and at least one second connecting hole is provided between two adjacent second stiffening plates.

[0034] In an optional embodiment, an anti-collision section is formed between the fixed connection portion and the notch of the guide groove.

[0035] Beneficial effects:

[0036] This arrangement can avoid damaging the fixed connection part during the pile sinking process. The specific length of the anti-collision section needs to be determined according to the corresponding pile sinking equipment.

[0037] In an optional embodiment, the stopper includes an end plate formed at the end of the connecting column, the outer periphery of the end plate can abut against the notch of the guide groove, and the guide protrusion is connected to a side surface of the end plate away from the connecting column.

[0038] In a second aspect, the utility model also provides an offshore photovoltaic support device, comprising:

[0039] an upper module capable of supporting the photovoltaic panels;

[0040] In the connection structure provided in the first aspect of the utility model, the connection columns of the connection structure are formed at the bottom of the upper module, and the connection piles of the connection structure are steel pile foundations, which can support the upper module.

[0041] In the connection structure provided by the first aspect of the utility model, the connection piles of the connection structure are formed at the bottom of the upper module, and the connection piles of the connection structure are formed on the steel pile foundation.

[0042] Beneficial effects:

[0043] The offshore photovoltaic support device of the second aspect of the utility model includes or uses the connection structure of the first aspect of the utility model, and thus has its beneficial effects, namely: the connecting columns and connecting piles can be connected by fasteners, which can not only avoid the long connection time caused by welding connections and the need to meet the weather window for welding adjustment, but also simplify the connection process of the connecting columns and connecting piles, help reduce the labor intensity of the operator, and avoid the safety hazards caused by substandard welding quality.

[0044] In an optional embodiment, the upper module includes:

[0045] platform;

[0046] A plurality of columns, the columns are supported below the platform, and the connecting columns are formed at the bottom of the columns;

[0047] Diagonal bracing is supported between the bottom surface of the platform and the columns. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0049] Figure 1 This is a front view of an offshore photovoltaic support device according to an embodiment of the utility model;

[0050] Figure 2 for Figure 1 A is a partial enlarged schematic diagram;

[0051] Figure 3 for Figure 2Schematic diagram of the connection column and cylinder separation state of the offshore photovoltaic support device;

[0052] Figure 4 For along Figure 3 A cross-sectional view of the offshore photovoltaic support device at line AA;

[0053] Figure 5 For along Figure 3 Cross-sectional view of the offshore photovoltaic support device at line BB.

[0054] Description of reference numerals:

[0055] 1. Connecting column; 101. Guide convex part; 1011. Straight section; 1012. Guide section; 102. Stopper; 103. Active connecting part; 1031. First connecting ring; 1032. First flange; 1033. First stiffening plate; 1034. First connecting hole;

[0056] 2. Connecting pile; 201. Guide groove; 202. Fixed connecting part; 2021. Second flange; 2022. Second stiffening plate; 2023. Second connecting hole; 203. Anti-collision section;

[0057] 3. Upper module; 301. Platform; 302. Column; 303. Diagonal brace; 5. Photovoltaic panel. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0059] With the rapid development of onshore photovoltaics, there are fewer and fewer sites suitable for photovoltaic construction. However, the sea has vast areas and good sunshine conditions, so the offshore photovoltaic industry has gradually developed and quickly become a hot field in the new energy industry.

[0060] Currently, most offshore photovoltaic projects are located in tidal flats at the junction of land and sea. Tidal flat photovoltaics are restricted by construction conditions, and large-scale offshore construction resources are difficult to access. Therefore, the prestressed high-strength concrete and bulk steel support structures of traditional land photovoltaics are generally adopted.

[0061] With the development of offshore photovoltaics, the development cost is strictly limited. It is necessary to make joint efforts in design, procurement, construction and installation to realize the large-scale development of offshore photovoltaics. In the relevant technology, the offshore photovoltaic support device generally includes an upper module 3 for supporting the photovoltaic panel 5, and four steel pipe pile foundations at the bottom.

[0062] The upper module 3 is hoisted as a whole and connected to the steel pile foundation at the bottom. At present, the connection nodes between the upper module 3 and the steel pile foundation at the bottom are generally welded. Welded nodes can well meet the requirements of strength and rigidity, but the on-site welding time is long, the manual operation is troublesome, the weather window that meets the welding conditions is required, and there may be safety hazards caused by the welding quality not meeting the requirements.

[0063] Combine the following Figures 1 to 5 , describing an embodiment of the utility model.

[0064] According to an embodiment of the utility model, on the one hand, a connection structure is provided, comprising a connection column 1, a connection pile 2, a stopper 102, a movable connection part 103 and a fixed connection part 202. A guide protrusion 101 is formed on the connection column 1. A guide groove 201 is formed on the connection pile 2, and the guide groove 201 can accommodate the guide protrusion 101. The stopper 102 is fixedly arranged on the connection column 1, and when the guide protrusion 101 is inserted into the guide groove 201, the stopper 102 abuts against the notch of the guide groove 201. The movable connection part 103 can be movably sleeved on the connection column 1 and is located on the side of the stopper 102 away from the connection pile 2, and a first connection hole 1034 is formed on the movable connection part 103. The fixed connection part 202 is fixedly arranged on the connection pile 2, and a second connection hole 2023 is formed on the fixed connection part 202, and the first connection hole 1034 and the second connection hole 2023 can be used for fasteners to pass through and connect the connection column 1 and the connection pile 2.

[0065] During use of the connection structure of this embodiment, the connection column 1 can be hoisted above the connection pile 2 (see Figure 3 ), the guide protrusion 101 can be inserted into the guide groove 201, and then the stopper 102 abuts against the notch of the guide groove 201, so as to pre-position the connecting column 1 on the connecting pile 2. The cooperation between the guide protrusion 101 and the guide groove 201 can not only facilitate the connection between the connecting column 1 and the connecting pile 2, but also pre-position the connecting column 1 and the connecting pile 2, so that the connecting structure has temporary wind resistance, ensuring that the sling can be removed after the guide protrusion 101 is connected to the guide groove 201.

[0066] The stopper 102 abuts against the notch of the guide groove 201, which can not only limit the insertion depth between the guide protrusion 101 and the guide groove 201, but also be used to withstand the vertical pressure, that is, the vertical pressure generated by its own weight and wind load, until the wind suction causes a pulling force to be generated at the node.

[0067] The operator can then move the movable connection part 103 to align the first connection hole 1034 on the movable connection part 103 with the second connection hole 2023 on the fixed connection part 202, and then pass the fastener through the first connection hole 1034 and the second connection hole 2023 to fix the connection column 1 on the connection pile 2 (see Figure 2 ). Since it is difficult to control the rotation angle of the connection column 1 during the hoisting process, in this embodiment, the movable connection structure is set to be movable, and the operator can drive the movable connection part 103 to rotate relative to the connection column 1 to avoid the first connection hole 1034 and the second connection hole 2023 being unable to align after the connection column 1 is connected to the connection pile 2. When the movable connection part 103 is connected to the fixed connection part 202, the stopper 102 can also be used to bear the pulling force generated by wind suction on the connection column 1.

[0068] Therefore, the connection structure of this embodiment can connect the connecting column 1 and the connecting pile 2 through fasteners, which not only can avoid the long connection time caused by welding connection and the problem of weather windows that need to meet welding adjustment, but also can simplify the connection process of the connecting column 1 and the connecting pile 2, help reduce the labor intensity of the operator, and avoid safety hazards caused by substandard welding quality.

[0069] Wherein, the fastener is preferably a bolt.

[0070] In one embodiment, Figure 3 As shown, the guide protrusion 101 includes a straight section 1011 and a guide section 1012. The straight section 1011 can be transitionally matched with the inner peripheral wall of the guide groove 201. The guide section 1012 is connected to one end of the straight section 1011 away from the stopper 102, and the guide section 1012 is set to be reduced in diameter in the direction away from the stopper 102.

[0071] By such arrangement, the guide section 1012 can play a guiding role, thereby facilitating the insertion of the guide protrusion 101 with the guide groove 201. The straight section 1011 can cooperate with the inner peripheral wall of the guide groove 201, thereby bearing the horizontal load generated by the wind load.

[0072] As a convertible embodiment, the entire guide section 1012 is configured to be reduced in diameter in a direction away from the stop portion 102 .

[0073] In one embodiment, Figure 4As shown, the movable connection part 103 includes a first connection ring 1031, a first flange 1032 and a first stiffening plate 1033. The first connection ring 1031 is arranged around the connection column 1. The first flange 1032 is formed on the outer periphery of the first connection ring 1031 and is located at one end of the first connection ring 1031 close to the stopper 102. The first connection hole 1034 is formed on the first flange 1032. The first stiffening plate 1033 is connected between the first connection ring 1031 and the first flange 1032.

[0074] The first stiffening plate 1033 can be used to enhance the structural strength of the movable connection section, thereby helping to improve the connection strength between the movable connection section and the fixed connection section.

[0075] In one implementation, there are multiple first stiffening plates 1033 , which are spaced apart along the circumference of the first flange 1032 , and at least one first connection hole 1034 is disposed between two adjacent first stiffening plates 1033 .

[0076] In one implementation, Figure 5 As shown, the fixed connection part 202 includes a second flange 2021 and a second flange 2021. The second flange 2021 is formed on the outer periphery of the connection pile 2. The second connection hole 2023 is formed on the second flange 2021. The second stiffening plate 2022 is connected between the second flange 2021 and the outer periphery of the connection pile 2.

[0077] Optionally, a movable gap is formed between the movable connection part 103 and the connecting column 1 to ensure that the movable connection part 103 can rotate 360° around the connecting column 1, so that the operator can align the first connecting hole 1034 and the second connecting hole 2023. As a convertible embodiment, the inner circumference of the movable connection part 103 matches the outer circumference size of the connecting column 1.

[0078] The second stiffening plate 2022 can be used to enhance the structural strength of the fixed connection portion 202 , thereby improving the connection strength between the movable connection portion 103 and the fixed connection portion 202 .

[0079] In one implementation, there are multiple second stiffening plates 2022 , and the multiple second stiffening plates 2022 are arranged at intervals along the circumference of the second flange 2021 , and at least one second connection hole 2023 is arranged between two adjacent second stiffening plates 2022 .

[0080] In one implementation, an anti-collision section 203 is formed between the fixed connection part 202 and the notch of the guide groove 201, which can prevent the fixed connection part 202 from being damaged during the pile sinking process of the connecting pile 2. The specific length of the anti-collision section 203 needs to be determined according to the corresponding pile sinking equipment.

[0081] In one implementation, the stopper 102 includes an end plate formed at the end of the connecting column 1, the outer periphery of the end plate can abut against the notch of the guide groove 201, and the guide protrusion 101 is connected to a side surface of the end plate away from the connecting column 1. Preferably, in the manufacturing process of the connection structure of this embodiment, the movable connection part 103 is first sleeved on the connecting column 1, and then the end plate is welded to the end of the connecting column 1.

[0082] As an alternative embodiment, the stopper 102 includes a third flange formed on the outer circumference of the connecting column 1 .

[0083] According to an embodiment of the utility model, on the other hand, an offshore photovoltaic support device is also provided, comprising an upper module 3 and a connection structure. The upper module 3 can support a photovoltaic panel 5. The connection structure is the connection structure provided in the first aspect of the utility model. The connection column 1 of the connection structure is formed at the bottom of the upper module, and the connection pile 2 of the connection structure is a steel pile foundation, which can support the upper module.

[0084] The offshore photovoltaic support device of the second aspect of the utility model includes or uses the connection structure of the first aspect of the utility model, and thus has its beneficial effects, namely: the connecting column 1 and the connecting pile 2 can be connected by fasteners, which can not only avoid the long connection time caused by welding connection and the need to meet the weather window for welding adjustment, but also simplify the connection process of the connecting column 1 and the connecting pile 2, help reduce the labor intensity of the operator, and avoid the safety hazards caused by substandard welding quality.

[0085] In one embodiment, the upper module 3 includes a platform 301, a plurality of columns 302 and a diagonal brace 303. The columns 302 are supported below the platform 301, and the connecting column 1 is formed at the bottom of the columns 302. The diagonal brace 303 is supported between the bottom surface of the platform 301 and the columns 302. The diagonal brace 303 can enhance the connection strength between the columns 302 and the platform 301, and disperse the force on the platform 301, so as to avoid deformation of the platform 301 caused by stress concentration.

[0086] In summary, the connection structure of the first aspect and the offshore photovoltaic support device of the second aspect of the utility model have the following advantages:

[0087] (1) Simple structure, easy to process and manufacture, and low cost;

[0088] (2) The connection is simple and fast, and is less affected by weather conditions;

[0089] (3) Reliable connection,

[0090] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A connection structure, characterized in that: include: A connecting column (1) having a guide protrusion (101) formed thereon; A connecting pile (2) having a guide groove (201) formed thereon, wherein the guide groove (201) is capable of accommodating the guide protrusion (101); a stopper (102) fixedly arranged on the connecting column (1), wherein when the guiding protrusion (101) is inserted into the guiding groove (201), the stopper (102) abuts against a notch of the guiding groove (201); A movable connection portion (103) which is movably sleeved on the connection column (1) and is located on a side of the stopper portion (102) away from the connection pile (2), and a first connection hole (1034) is formed on the movable connection portion (103); A fixed connection part (202) is fixedly arranged on the connection pile (2), and a second connection hole (2023) is formed on the fixed connection part (202), and the first connection hole (1034) and the second connection hole (2023) can allow a fastener to pass through and connect the connection column (1) and the connection pile (2).

2. The connection structure according to claim 1, characterized in that: The guiding protrusion (101) comprises: The straight section (1011) is capable of transitionally matching with the inner peripheral wall of the guide groove (201); A guide section (1012) is connected to an end of the straight section (1011) away from the stop portion (102), and the guide section (1012) is arranged to be reduced in diameter in a direction away from the stop portion (102).

3. The connection structure according to claim 1 or 2, characterized in that: The movable connection part (103) comprises: A first connecting ring (1031) which is disposed around the connecting column (1); a first flange (1032) formed on the outer periphery of the first connecting ring (1031) and located at one end of the first connecting ring (1031) close to the stopper (102), and the first connecting hole (1034) is formed on the first flange (1032); A first stiffening plate (1033) is connected between the first connecting ring (1031) and the first flange (1032).

4. The connection structure according to claim 3, characterized in that: There are a plurality of first stiffening plates (1033), which are arranged at intervals along the circumference of the first flange (1032), and at least one first connecting hole (1034) is arranged between two adjacent first stiffening plates (1033).

5. The connection structure according to claim 1 or 2, characterized in that: The fixed connection portion (202) comprises: a second flange (2021) formed on the outer periphery of the connecting pile (2), and the second connecting hole (2023) is formed on the second flange (2021); A second stiffening plate (2022) is connected between the second flange (2021) and the outer periphery of the connecting pile (2).

6. The connection structure according to claim 5, characterized in that: There are a plurality of the second stiffening plates (2022), and the plurality of the second stiffening plates (2022) are arranged at intervals along the circumference of the second flange (2021), and at least one second connecting hole (2023) is arranged between two adjacent second stiffening plates (2022).

7. The connection structure according to claim 1 or 2, characterized in that: An anti-collision section (203) is formed between the fixed connection portion (202) and the notch of the guide groove (201).

8. The connection structure according to claim 1 or 2, characterized in that: The stopper (102) comprises an end plate formed at the end of the connecting column (1), the outer peripheral edge of the end plate being capable of abutting against the notch of the guide groove (201), and the guide protrusion (101) being connected to a side surface of the end plate away from the connecting column (1).

9. An offshore photovoltaic support device, characterized in that: include: An upper module (3) capable of supporting a photovoltaic panel (5); According to any one of claims 1 to 8, the connecting column (1) of the connecting structure is formed at the bottom of the upper module (3), and the connecting pile (2) of the connecting structure is a steel pile foundation, and the steel pile foundation is capable of supporting the upper module (3).

10. The offshore photovoltaic support device according to claim 9, characterized in that: The upper module (3) comprises: Platform (301); A plurality of columns (302), wherein the columns (302) are supported below the platform (301), and the connecting column (1) is formed at the bottom of the columns (302); The diagonal brace (303) is supported between the bottom surface of the platform (301) and the column (302).

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