Bottom connecting structure of offshore photovoltaic support and offshore photovoltaic support

Abstract

The utility model relates to the technical field of solar photovoltaic power generation, in particular to a bottom connecting structure of an offshore photovoltaic support and the offshore photovoltaic support. The connecting structure comprises a pile top end plate, a socket structure is arranged on the bottom face of the pile top end plate, the socket structure is used for being inserted into an inner hole of a pile foundation, the diameter of a circumcircle of the socket structure is used for being smaller than the diameter of the inner hole of the pile foundation, and the pile top end plate is used for being located and fixed to the upper end face of the pile foundation. The upper end face of the pile top end plate is provided with a big-end-up conical supporting column, and the conical supporting column is fixed to the upper structure of the photovoltaic support. By inserting the socket structures into the inner holes of the pile foundations, the mounting position of the offshore photovoltaic support can be pre-positioned, the pile foundations with construction errors can be adapted, the relative position between the offshore photovoltaic support and the pile foundations can be adjusted, accurate positioning of the offshore photovoltaic support is guaranteed, the mounting precision is improved, and the mounting difficulty is reduced; and the installation efficiency of the offshore photovoltaic support is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar photovoltaic power generation, and in particular to a bottom connection structure of an offshore photovoltaic bracket and an offshore photovoltaic bracket. Background Art

[0002] At present, offshore photovoltaics are in their infancy, and photovoltaic technologies suitable for marine environments are making breakthroughs. Compared with land photovoltaics, offshore photovoltaic construction is more difficult and the construction environment is complex and changeable. Considering the construction safety, it is not suitable for a large number of workers to go out to sea to assemble offshore photovoltaic brackets. The alternative method is for workers to complete bracket assembly and component installation at the onshore assembly site, and then hoist them from the shipping terminal to the ship for transportation to the installation site, and hoist them as a whole onto the pre-constructed pile foundation.

[0003] The photovoltaic support can be divided into an upper structure and a bottom connection structure from a structural point of view. The upper structure includes an upper chord, a lower chord and a web disposed between the upper and lower chords. The connection structure is located and fixed on the pile foundation to complete the fixation of the photovoltaic support and the pile foundation. Offshore photovoltaic supports are generally large in size and mass, so their pile foundations are also large in size. In order to save materials, a downward extending inner hole is usually set on the pile foundation on the basis of ensuring structural strength.

[0004] When installing an offshore photovoltaic bracket, the entire offshore photovoltaic bracket needs to be transported by ship. As the ship is affected by wind and waves, it is difficult to align the connecting components at the bottom of the photovoltaic bracket with the pile foundation during hoisting. Due to the large size and mass of the offshore photovoltaic bracket, when the photovoltaic bracket and the pile foundation are not aligned and need to be readjusted in relative position, the operation is difficult. Furthermore, after the offshore photovoltaic bracket is placed on the pile foundation, when the two are fixed by welding or other methods, the offshore photovoltaic bracket is prone to rocking back and forth, which is not conducive to the stability of the overall installation of the offshore photovoltaic bracket and the operability of the construction method. The safety and reliability of the operation and the feasibility of the construction plan are all low.

[0005] Therefore, when installing offshore photovoltaic brackets, how to ensure the convenience of installation and safe operation of the offshore photovoltaic brackets is a technical problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a bottom connection structure of an offshore photovoltaic bracket and an offshore photovoltaic bracket. By inserting the socket structure into the inner hole of the pile foundation, the installation position of the offshore photovoltaic bracket can be pre-positioned. At the same time, a certain margin is left between the socket structure and the inner hole of the pile foundation, which can adapt to the pile foundation with construction errors, adjust the relative position between the offshore photovoltaic bracket and the pile foundation, ensure the accurate positioning of the offshore photovoltaic bracket, improve the installation accuracy, reduce the installation difficulty, and improve the installation efficiency of the offshore photovoltaic bracket.

[0007] In response to the above technical problems, the technical solution provided by the utility model is a bottom connection structure of an offshore photovoltaic bracket, including a pile top plate, a bottom surface of the pile top plate is provided with a socket structure, the socket structure is used to be inserted into the inner hole of the pile foundation, and the circumscribed circle diameter of the socket structure is used to be smaller than the inner hole diameter of the pile foundation, the pile top plate is used to be located and fixed on the upper end surface of the pile foundation, and a conical support column with a larger upper part and a smaller lower part is provided on the upper end surface of the pile top plate, and the conical support column is fixed to the upper structure of the photovoltaic bracket.

[0008] Furthermore, a reinforcing web is provided between the outer peripheral surface of the conical support column and the upper end surface of the pile top end plate.

[0009] Furthermore, a plurality of reinforcing webs are arranged in an array along the axis of the conical support column.

[0010] Furthermore, a supporting sphere is fixedly provided at the upper end of the conical supporting column, and a lower chord fixing position and a web fixing position are provided on the supporting sphere, the lower chord fixing position is used to connect with the lower chord of the upper structure, and the web fixing position is used to connect with the web of the upper structure.

[0011] Furthermore, a plurality of lower chord fixing positions are arranged in an array along the vertical diameter of the supporting sphere, and the web fixing position is arranged on the upper side of the lower chord fixing position, and two of them are symmetrically arranged along the vertical diameter of the supporting sphere.

[0012] Furthermore, a lifting lug is also provided on the supporting sphere, and the lifting lug is located between the two abdominal rod fixing positions.

[0013] Furthermore, the upper end of the conical support column is provided with an arc surface adapted to the outer circumference of the supporting sphere.

[0014] Furthermore, the socket structure includes two socket plates arranged crosswise.

[0015] Furthermore, the lower end of the socket plate is provided with a sharp corner.

[0016] In response to the above technical problems, the utility model also provides a technical solution, which is an offshore photovoltaic bracket, including an upper structure and a connecting structure, wherein the upper structure includes an upper chord, a lower chord and a web arranged therebetween, and the connecting structure is the bottom connecting structure of the offshore photovoltaic bracket, and the bottom connecting structure of the offshore photovoltaic bracket includes a pile top plate, and the bottom surface of the pile top plate is provided with a socket structure, and the socket structure is used to be inserted into the inner hole of the pile foundation, and the circumscribed circle diameter of the socket structure is used to be smaller than the inner hole diameter of the pile foundation, and the pile top plate is used to be seated and fixed on the upper end surface of the pile foundation, and a conical support column with a larger upper part and a smaller lower part is provided on the upper end surface of the pile top plate, and the conical support column is fixed to the upper structure of the photovoltaic bracket.

[0017] Furthermore, a reinforcing web is provided between the outer peripheral surface of the conical support column and the upper end surface of the pile top end plate.

[0018] Furthermore, a plurality of reinforcing webs are arranged in an array along the axis of the conical support column.

[0019] Furthermore, a supporting sphere is fixedly provided at the upper end of the conical supporting column, and a lower chord fixing position and a web fixing position are provided on the supporting sphere, the lower chord fixing position is used to connect with the lower chord of the upper structure, and the web fixing position is used to connect with the web of the upper structure.

[0020] Furthermore, a plurality of lower chord fixing positions are arranged in an array along the vertical diameter of the supporting sphere, and the web fixing position is arranged on the upper side of the lower chord fixing position, and two of them are symmetrically arranged along the vertical diameter of the supporting sphere.

[0021] Furthermore, a lifting lug is also provided on the supporting sphere, and the lifting lug is located between the two abdominal rod fixing positions.

[0022] Furthermore, the upper end of the conical support column is provided with an arc surface adapted to the outer circumference of the supporting sphere.

[0023] Furthermore, the socket structure includes two socket plates arranged crosswise.

[0024] Furthermore, the lower end of the socket plate is provided with a sharp corner.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] (1) By setting a socket structure on the bottom surface of the top plate of the pile, and the circumscribed circle diameter of the socket structure is smaller than the inner hole diameter of the pile foundation, when actually installing the offshore photovoltaic bracket, the installation position of the offshore photovoltaic bracket can be pre-positioned by inserting the socket structure into the inner hole of the pile foundation. At the same time, a certain margin is left between the socket structure and the inner hole of the pile foundation, which can adapt to the pile foundation with construction errors, adjust the relative position between the offshore photovoltaic bracket and the pile foundation, ensure the accurate positioning of the offshore photovoltaic bracket, improve the installation accuracy, reduce the installation difficulty, and improve the installation efficiency of the offshore photovoltaic bracket; at the same time, by using the socket structure, when fixing the top plate of the pile and the pile foundation, the offshore photovoltaic bracket can be prevented from shaking, thereby improving the safety of the installation.

[0027] (2) The use of reinforced webs can improve the shear resistance of the tapered support column and bear part of the bending moment, thereby increasing the support strength of the tapered support column and improving safety.

[0028] (3) The support spheres facilitate the fixed connection between the bottom connection structure and the upper structure. On the other hand, the support spheres can evenly transfer the load of the upper structure to the conical support columns, thereby improving stability.

[0029] (4) The arc surface provided on the top surface of the conical support column can increase the contact area between the conical support column and the supporting sphere, thereby improving the support stability.

[0030] (5) The lower end of the socket plate is provided with a sharp corner, which can be used to guide the socket structure into the inner hole of the pile foundation, making it easier to insert. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the overall structure of the bottom connection structure of an offshore photovoltaic support in Example 1 of the utility model.

[0032] Figure 2 It is a schematic structural diagram of the conical support column in Example 1 of the utility model.

[0033] Figure 3 It is a structural schematic diagram of the pile foundation in Example 1 of the utility model.

[0034] Figure 4 It is a schematic diagram of the installation of the bottom connection structure and the pile foundation when there is an error in the horizontal direction of the pile foundation in Example 2 of the utility model.

[0035] In the figure: 1, web member; 2, lower chord member; 3, pile top plate; 4, socket structure; 41, socket plate; 5, conical support column; 51, arc surface; 6, reinforced web plate; 7, supporting sphere; 71, lower chord member fixing position; 72, web member fixing position; 8, lifting lug; 9, pile foundation; 91, inner hole. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application: Specific embodiment 1:

[0038] refer to Figures 1 to 3 The utility model is an offshore photovoltaic bracket, including an upper structure (not shown in the figure), and a connecting structure fixedly arranged at the bottom of the upper structure, the connecting structure is the bottom connecting structure of the offshore photovoltaic bracket (hereinafter referred to as the connecting structure), wherein the top of the upper structure is used to support the photovoltaic components, and the bottom of the connecting structure is used to be fixed on the pile foundation 9, so that the pile foundation 9 is used to support the entire offshore photovoltaic bracket.

[0039] In this embodiment, four support positions are arranged around the bottom of the upper structure of a single offshore photovoltaic support, and a connection structure is arranged on each support position. In this case, a single group of offshore photovoltaics includes four pile foundations 9, and the connection structures correspond one to one with the pile foundations 9. Of course, in other embodiments, the number of connection structures at the bottom of the upper structure can be set according to actual needs, such as setting six, and in this case, a single group of offshore photovoltaics includes six pile foundations 9.

[0040] In this embodiment, the offshore photovoltaic support is larger in size and heavier in weight, so the pile foundation 9 used therein is larger in size. In order to save materials, an inner hole 91 extending downward is provided at the top of the pile foundation 9 .

[0041] like Figure 1 As shown, in this embodiment, the connection structure includes a pile top plate 3, and a socket structure 4 is provided on the bottom surface of the pile top plate 3. The socket structure 4 is used to be inserted into the inner hole 91 of the pile foundation 9, and the circumscribed circle diameter of the socket structure 4 is used to be smaller than the diameter of the inner hole 91 of the pile foundation 9. The pile top plate 3 is used to be located and fixed on the upper end surface of the pile foundation 9. A conical support column 5 with a larger upper part and a smaller lower part is provided on the upper end surface of the pile top plate 3, and the conical support column 5 is fixed to the upper structure of the photovoltaic bracket.

[0042] In this way, by setting a socket structure 4 on the bottom surface of the pile top plate 3, and the diameter of the circumscribed circle of the socket structure 4 is smaller than the diameter of the inner hole 91 of the pile foundation 9, the inner hole 91 of the pile foundation 9 can be used when actually installing the offshore photovoltaic bracket. By inserting the socket structure 4 into the inner hole 91 of the pile foundation 9, the installation position of the offshore photovoltaic bracket can be pre-positioned. At the same time, a certain margin is left between the socket structure 4 and the inner hole 91 of the pile foundation 9, which can adapt to the pile foundation 9 with construction errors, adjust the relative position between the offshore photovoltaic bracket and the pile foundation 9, ensure the accurate positioning of the offshore photovoltaic bracket, improve the installation accuracy, reduce the installation difficulty, and improve the installation efficiency of the offshore photovoltaic bracket. At the same time, by using the socket structure 4, when fixing the pile top plate 3 and the pile foundation 9, the shaking of the offshore photovoltaic bracket can be avoided, and the safety of installation can be improved.

[0043] like Figure 1 As shown, preferably, in this embodiment, the bottom surface of the conical support column 5 is smaller than the upper end surface of the pile top plate 3, and a reinforcing web 6 is provided between the outer peripheral surface of the conical support column 5 and the upper end surface of the pile top plate 3. Specifically, the reinforcing web 6 includes four, and the four reinforcing webs 6 are arranged in an equidistant array along the axis of the conical support column 5. In this way, the use of the reinforcing web 6 can improve the shear resistance of the conical support column 5, bear part of the bending moment, improve the supporting strength of the conical support column 5, and improve safety. Of course, in other embodiments, when meeting actual use requirements, the number of reinforcing webs 6 can be set according to actual needs, such as one, three, six, etc., or the reinforcing web 6 may not be provided.

[0044] In this embodiment, preferably, Figure 1 As shown, a support ball 7 is fixedly provided at the upper end of the conical support column 5, and a lower chord fixing position 71 and a web fixing position 72 are provided on the support ball 7. The lower chord fixing position 71 is used to connect with the lower chord 2 of the upper structure, and the web fixing position 72 is used to connect with the web 1 of the upper structure. In this way, on the one hand, the support ball 7 is used to facilitate fixing the connection structure and the upper structure together, and on the other hand, the support ball 7 can be used to evenly transfer the load of the upper structure to the conical support column 5, thereby improving stability.

[0045] Specifically, Figure 1 As shown, four lower chord fixing positions 71 are arranged in an array along the vertical diameter of the supporting sphere 7, and the four lower chord fixing positions 71 are located in the middle of the supporting sphere 7 in the vertical direction, and the web fixing positions 72 are arranged on the upper side of the lower chord fixing positions 71 and are symmetrically arranged along the vertical diameter of the supporting sphere 7, and a lifting lug 8 is arranged between the two web fixing positions 72. This single supporting sphere 7 can be fixedly connected with four lower chords 2 and two webs 1 to ensure reliable fixation between the connection structure and the upper structure.

[0046] Of course, in other embodiments, the number and position of the lower chord rod fixing positions 71 can be set according to actual needs, such as two, five, six, etc., of the lower chord rod fixing positions 71 are arranged in an array along the vertical diameter of the supporting sphere 7, and the lower chord rod fixing position 71 can be set in the middle and lower part of the supporting sphere 7. Similarly, the number and position of the web rod fixing positions 72 can also be set according to actual needs, such as three, five, etc., of the web rod fixing positions 72 are arranged at intervals along the circumferential direction.

[0047] In this embodiment, preferably, Figure 1 , 2 As shown, the upper end of the conical support column 5 is provided with an arc surface 51 adapted to the outer periphery of the support sphere 7, so that the arc surface 51 can be used to increase the contact area between the conical support column 5 and the support sphere 7, thereby improving the support stability. Of course, in other embodiments, when meeting actual needs, the upper end of the conical support column 5 may not be provided with the arc surface 51, but may be a plane, in which case the lower part of the support sphere 7 may be cut out to form a bottom surface adapted to the upper end of the conical support column 5, which can also ensure the reliable fixation of the support sphere 7 and the conical support column 5.

[0048] In this embodiment, if Figure 1 As shown, the socket structure 4 includes two socket plates 41 arranged crosswise. And the lower end of the socket plate 41 is provided with a sharp corner. In this way, the socket structure 4 can be inserted into the inner hole 91 of the pile foundation 9 by using the sharp corner, so as to facilitate the insertion of the socket structure 4 into the inner hole 91 of the pile foundation 9. Of course, in other embodiments, when meeting actual use requirements, the lower end of the socket plate 41 may not be provided with a sharp corner, but a flat angle. Or in other embodiments, the socket structure 4 may be a columnar structure.

[0049] Installation process of the offshore photovoltaic bracket of the utility model:

[0050] First, the corresponding lower chord 2 and the web 1 on the upper structure are welded and fixed to the corresponding positions of the supporting sphere 7 of the connecting structure to complete the assembly of the offshore photovoltaic bracket. Then, the offshore photovoltaic bracket is hoisted to the top of the pile foundation 9 by hoisting, and the socket structure 4 at the lower part of the connecting structure is inserted into the inner hole 91 of the corresponding pile foundation 9. The position of the socket structure 4 in the inner hole 91 is adjusted to complete the position adjustment of the offshore photovoltaic bracket to ensure the accuracy of the installation position. Then, the top plate 3 of the pile of the connecting structure is welded and fixed to the top of the pile foundation 9 to complete the installation of the offshore photovoltaic bracket.

[0051] Example 2: This example provides a different connection structure. Unlike Example 1, in this example, during the actual piling process in the offshore photovoltaic construction process, due to the fact that the offshore photovoltaic construction vessel is easily affected by wind and waves, undercurrents, and the inherent property of the ship's dynamic stability, the ship is always in an absolute state of motion, which causes the piling equipment on the ship to be easily affected by the instability of the platform foundation, thereby transmitting the error caused by the environmental impact to the pile foundation 9, causing vertical and horizontal construction errors between the pile foundation 9 and the offshore photovoltaic bracket.

[0052] If the horizontal deviation of the pile foundation 9 is within a certain range, the existing deviation can be eliminated by using the gap between the socket structure 4 and the inner hole 91 of the pile foundation 9. However, when the horizontal error of the pile foundation 9 is large and exceeds the adjustment range of the socket structure 4, such as Figure 4 As shown, the bottom surface of the conical support column 5 can be cut at a certain angle through customized processing. The cutting angle is calculated according to the size of the horizontal error, so that the supporting sphere 7 is eccentric in the opposite direction of the horizontal error, and the eccentric horizontal displacement is adapted to the horizontal error, thereby eliminating a certain horizontal error and ensuring the smooth installation of the upper structure support unit.

[0053] When there is a vertical error in the construction of the pile foundation 9, there is a certain elevation difference between the height of the top of the pile foundation 9 and the design height. At this time, the elevation difference can be compensated by shortening or increasing the height of the conical support column 5 to ensure that the construction error of the pile foundation 9 will not affect the final assembly of the offshore photovoltaic bracket.

[0054] In this way, when the pile foundation 9 is driven and it is measured that there is a construction error in the pile foundation 9, the shape of the conical support column 5 can be changed in advance to make the offshore photovoltaic bracket adapt to the error caused by the construction of the pile foundation 9, thereby avoiding deformation of the offshore photovoltaic bracket caused by horizontal and vertical errors of the pile foundation 9.

[0055] The embodiment of the bottom connection structure of the offshore photovoltaic bracket of the utility model, the bottom connection structure of the offshore photovoltaic bracket of the utility model is the same as the structure of the bottom connection structure of the offshore photovoltaic bracket in the above-mentioned offshore photovoltaic bracket, and will not be repeated here.

[0056] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0057] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invented product is usually placed when used. It is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0058] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

Claims

1. A bottom connection structure of an offshore photovoltaic support, characterized in that: It includes a pile top plate, the bottom surface of which is provided with a socket structure, the socket structure is used to be inserted into the inner hole of the pile foundation, and the circumscribed circle diameter of the socket structure is used to be smaller than the inner hole diameter of the pile foundation, the pile top plate is used to be located and fixed on the upper end surface of the pile foundation, and the upper end surface of the pile top plate is provided with a conical support column with a larger upper part and a smaller lower part, and the conical support column is fixed to the upper structure of the photovoltaic support; A reinforcing web is provided between the outer peripheral surface of the conical support column and the upper end surface of the pile top end plate; A plurality of reinforcing webs are arranged in an array along the axis of the conical support column.

2. The bottom connection structure of the offshore photovoltaic support according to claim 1 is characterized in that: A supporting sphere is fixedly provided at the upper end of the conical supporting column, and a lower chord fixing position and a web fixing position are provided on the supporting sphere. The lower chord fixing position is used to connect with the lower chord of the upper structure, and the web fixing position is used to connect with the web of the upper structure.

3. The bottom connection structure of the offshore photovoltaic support according to claim 2 is characterized in that: The lower chord fixing positions are arranged in a plurality of arrays along the vertical diameter of the supporting sphere, and the web fixing positions are arranged on the upper side of the lower chord fixing positions and two of them are symmetrically arranged along the vertical diameter of the supporting sphere.

4. The bottom connection structure of the offshore photovoltaic support according to claim 3 is characterized in that: The supporting sphere is also provided with a lifting lug, which is located between the two abdominal rod fixing positions.

5. The bottom connection structure of the offshore photovoltaic support according to claim 2, characterized in that: The upper end of the conical support column is provided with an arc surface adapted to the outer circumference of the supporting sphere.

6. The bottom connection structure of the offshore photovoltaic support according to claim 1, characterized in that: The socket structure comprises two socket plates arranged crosswise.

7. The bottom connection structure of the offshore photovoltaic support according to claim 6, characterized in that: The lower end of the socket plate is provided with a sharp corner.

8. An offshore photovoltaic support, comprising an upper structure and a connecting structure, wherein the upper structure comprises an upper chord, a lower chord and a web disposed therebetween, characterized in that: The connection structure is the bottom connection structure of the offshore photovoltaic support as described in any one of claims 1 to 7 above.

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