Hinge device for offshore grid structure and pile foundation

Abstract

The utility model discloses a hinge device for an offshore grid structure and a pile foundation, which comprises the pile foundation and an upper grid connecting ball, a flange plate component is arranged at the top of the pile foundation, a grid supporting spherical connecting piece is arranged at the top of the flange plate component, and the upper grid connecting ball is connected to the top of the grid supporting spherical connecting piece. The hinge device ensures that a certain degree of freedom exists between the offshore photovoltaic large-span net rack structure and the pile foundation, can realize a hinged and fixed connection mode, enhances the wind load resistance of the offshore photovoltaic large-span net rack, and can conveniently and quickly realize long-term connection and fixation of the offshore large-span net rack and the pile foundation.

Description

Technical Field

[0001] The utility model belongs to the technical field of offshore photovoltaic power generation, and in particular relates to an articulated device for an offshore grid structure and a pile foundation. Background Art

[0002] At present, the connection between the upper structure of the spherical grid and the pipe piles on the market all adopts a fixed welding rigid connection method. The rigid welding fixed connection process is not suitable for large-scale grid installation at sea. Due to strong external loads such as wind force, it will cause stress concentration at the rigid connection parts. Long-term stress concentration will cause damage to the connection parts, thus affecting the use. Utility Model Content

[0003] The utility model aims to provide an articulated device for an offshore grid structure and a pile foundation, which solves the problem that the connection parts of the existing spherical grid structure and the pipe piles are easily damaged under the action of strong external loads.

[0004] The technical solution adopted by the utility model is an articulated device for an offshore grid structure and a pile foundation, comprising a pile foundation and an upper grid connection ball, a flange plate assembly is arranged on the top of the pile foundation, a grid support spherical connector is arranged on the top of the flange plate assembly, and the top of the grid support spherical connector is connected to an upper grid connection ball.

[0005] The utility model is also characterized in that:

[0006] The flange plate assembly comprises a lower flange plate arranged on the top of the pile foundation, an upper flange plate is arranged on the top of the lower flange plate, the lower flange plate and the upper flange plate are arranged coaxially, and a grid supporting spherical connector is arranged on the top of the upper flange plate.

[0007] The grid support spherical connector includes a hinge lower support plate arranged on the top of the flange plate assembly, an intermediate spherical skateboard is arranged on the inner bottom of the hinge lower support plate, the spherical surface of the intermediate spherical skateboard is arranged away from the bottom of the hinge lower support plate, the spherical surface of the intermediate spherical skateboard is slidably connected to the bottom end of the hinge upper support plate, the bottom end of the hinge upper support plate is arranged in the hinge lower support plate, the top end of the hinge upper support plate is arranged on the outside of the hinge lower support plate, a plurality of upper rib plates are arranged at the top of the hinge upper support plate and evenly along its circumference, and the tops of the plurality of upper rib plates are connected to the upper grid connecting ball.

[0008] A circular arc is arranged on the top of each upper rib plate, and a concave surface of each circular arc is arranged toward the center of the ball connected to the upper grid frame.

[0009] The hinge lower support plate includes a bottom plate, the top of the bottom plate is connected to one end of the cylindrical barrel, a retaining ring is connected to the inner wall of the other end of the barrel, the bottom of the bottom plate is connected to the upper flange plate, and the top of the bottom plate is connected to the bottom plane of the middle spherical slide plate.

[0010] The bottom end of the hinge upper support plate is clamped with the lower surface of the retaining ring.

[0011] The bottom plate, the cylinder, the middle spherical sliding plate and the hinge upper support plate are all coaxially arranged with the upper flange plate.

[0012] The lower surface of the upper flange plate is connected with a socket-type cross connector, and the socket-type cross connector passes through the lower flange plate and is inserted into the pile foundation.

[0013] The socket-type cross connector includes a first connecting plate, and strip grooves are opened on both side walls of the first connecting plate. The two strip grooves are arranged along the axis of the first connecting plate, and a second connecting plate is inserted in each strip groove. One end of the first connecting plate and the second connecting plate are connected to the upper flange plate, and the other ends of the first connecting plate and the second connecting plate are inserted in the pile foundation.

[0014] A plurality of lower flange stiffening plates are evenly connected to the lower surface of the lower flange plate along its circumference, and the plurality of lower flange stiffening plates are all inserted into the pile foundation.

[0015] The beneficial effects of the utility model are as follows: the articulated device of the offshore grid structure and the pile foundation of the utility model ensures a certain degree of freedom between the offshore photovoltaic large-span grid structure and the pile foundation by arranging the grid support spherical connector, and can realize a hinged fixed connection mode, thereby enhancing the wind load resistance of the offshore photovoltaic large-span grid, and can conveniently and quickly realize the long-term connection and fixation of the offshore large-span grid and the pile foundation, avoiding cumbersome fixing measures such as welding fixation and the risk of damage caused by stress concentration of the rigid connection, reducing the connection time of the offshore installation process, which is beneficial to improving the installation reliability of the offshore large-area grid structure, the long-term operation reliability and the efficiency of construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the hinged device of the offshore grid structure and the pile foundation of the utility model;

[0017] Figure 2 It is a top view of the hinged device of the offshore grid structure and the pile foundation of the utility model;

[0018] Figure 3 It is a connection schematic diagram of the socket-type cross connector in the articulated device of the offshore grid structure and the pile foundation of the utility model;

[0019] Figure 4 It is a top view of a socket-type cross connector in the hinged device of the offshore grid structure and the pile foundation of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the first connecting plate in the hinged device of the offshore grid structure and the pile foundation of the utility model;

[0021] Figure 6 It is a structural schematic diagram of the second connecting plate in the hinged device of the offshore grid structure and the pile foundation of the utility model;

[0022] Figure 7 It is a structural schematic diagram of the upper rib plate in the hinged device of the offshore grid structure and the pile foundation of the utility model.

[0023] In the figure, 1. upper rib plate, 2. lower flange plate, 3. lower flange stiffening plate, 4. socket cross connector, 5. middle spherical slide plate, 6. hinge upper support plate, 7. upper flange plate, 8. pile foundation, 9. upper grid connection ball, 10. hinge lower support plate;

[0024] 4-1. First connecting plate, 4-2. Second connecting plate, 4-3. Strip groove;

[0025] 10-1. Base plate, 10-2. Cylinder, 10-3. Retaining ring. DETAILED DESCRIPTION

[0026] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0027] Example 1

[0028] The utility model provides an articulated device for connecting an offshore net frame structure and a pile foundation, the structure of which is as follows: Figure 1 and Figure 2 As shown, it includes a pile foundation 8 and an upper grid connection ball 9. A flange plate assembly is arranged on the top of the pile foundation 8. A grid support spherical connector is arranged on the top of the flange plate assembly. The flange plate assembly is used to fix the grid support spherical connector. The top of the grid support spherical connector is connected to the upper grid connection ball 9. The grid support spherical connector can rotate, so that a hinge is formed between the pile foundation 8 and the upper grid connection ball 9. The bottom of the flange plate assembly is connected to one end of the socket cross connector 4, and the other end of the socket cross connector 4 is inserted into the pile foundation 8, thereby improving stability.

[0029] Example 2

[0030] On the basis of Example 1, the flange plate assembly includes a lower flange plate 2 arranged on the top of the pile foundation 8, an upper flange plate 7 is welded to the top of the lower flange plate 2, and the lower flange plate 2 is coaxially arranged with the upper flange plate 7. Such an arrangement can greatly improve the stability of the connection. The lower surface of the upper flange plate 7 is connected with a socket-type cross connector 4, and the socket-type cross connector 4 is used to improve the stability of the connection between the lower flange plate 2 and the pile foundation 8. Figure 3As shown, a plurality of lower flange stiffening plates 3 are evenly connected to the lower surface of the lower flange plate 2 along its circumference, and the plurality of lower flange stiffening plates 3 are inserted into the pile foundation 8. The plurality of lower flange stiffening plates 3 are arranged on the outer circumference of the socket-type cross connector 4, and the stability between the lower flange plate 2 and the pile foundation 8 is further improved by the lower flange stiffening plates 3.

[0031] like Figure 4 As shown, the socket-type cross connector 4 includes a first connecting plate 4-1, as shown in Figure 5 As shown, strip grooves 4-3 are provided on both side walls of the first connecting plate 4-1, and the two strip grooves 4-3 are arranged along the axis of the first connecting plate 4-1. A second connecting plate 4-2 is inserted in each strip groove 4-3, so that the first connecting plate 4-1 and the two second connecting plates 4-2 form a "cross" shape, and one end of the first connecting plate 4-1 and the second connecting plate 4-2 are welded to the upper flange plate 7, and the other ends of the first connecting plate 4-1 and the second connecting plate 4-2 are inserted in the pile foundation 8, as shown in FIG. Figure 6 As shown, the length of one end of the first connecting plate 4-1 connected to the upper flange plate 7 is greater than the length of the end inserted into the pile foundation 8, and the length of one end of the second connecting plate 4-2 connected to the upper flange plate 7 is greater than the length of the end inserted into the pile foundation 8. This arrangement makes it easier to insert the first connecting plate 4-1 and the second connecting plate 4-2 into the pile foundation 8.

[0032] Example 3

[0033] On the basis of Example 2, the grid supporting spherical connector includes a hinge lower support plate 10, which is welded to the upper flange plate 7, so that the hinge lower support plate 10 is rigidly connected to the pile foundation 8 as a whole, and an intermediate spherical skateboard 5 is arranged on the inner bottom of the hinge lower support plate 10, and the lower surface of the intermediate spherical skateboard 5 is flat and connected to the hinge lower support plate 10, and the upper surface of the intermediate spherical skateboard 5 is spherical and is arranged away from the bottom of the hinge lower support plate 10, and the spherical surface of the intermediate spherical skateboard 5 is slidably connected to the bottom end of the hinge upper support plate 6, that is, the bottom of the hinge upper support plate 6 is arranged The arc surface is set to be consistent with the spherical curvature of the middle spherical skateboard 5, and the two are completely fitted. There is a certain degree of freedom between the hinge upper support plate 6, the middle spherical skateboard 5, and the hinge lower support plate 10. The hinge upper support plate 6 can rotate to a certain extent on the middle spherical skateboard 5. The bottom end of the hinge upper support plate 6 is set in the hinge lower support plate 10, and the top of the hinge upper support plate 6 is set outside the hinge lower support plate 10. The top of the hinge upper support plate 6 is evenly arranged with a plurality of upper rib plates 1 along its circumference. The tops of the plurality of upper rib plates 1 are connected to the upper grid connecting ball 9, such as Figure 7 As shown, each upper rib plate 1 is provided with an arc at the top, and the concave surface of each arc is arranged toward the center of the upper grid connecting ball 9, so that the upper grid connecting ball 9 can be completely fitted with the arc surface of each upper rib plate 1, and the connection is more stable.

[0034] Furthermore, the hinge lower support plate 10 includes a bottom plate 10-1, the top of the bottom plate 10-1 is connected to one end of a cylindrical barrel 10-2, a retaining ring 10-3 is connected to the inner wall of the other end of the barrel 10-2, the bottom of the bottom plate 10-1 is connected to the upper flange plate 7, the top of the bottom plate 10-1 is connected to the bottom plane of the middle spherical slide plate 5, the bottom end of the hinge upper support plate 6 is clamped with the lower surface of the retaining ring 10-3, and the retaining ring 10-3 is provided to prevent the hinge upper support plate 6 from falling off the hinge lower support plate 10 during rotation.

[0035] Furthermore, the bottom plate 10-1, the cylinder 10-2, the intermediate spherical slide plate 5, and the hinge upper support plate 6 are all coaxially arranged with the upper flange plate 7, so that the overall hinge device has a symmetrical structure, which is more stable and can improve the wind load resistance.

[0036] The working principle of the hinged device of the offshore grid structure and the pile foundation of the utility model is as follows: the installation is carried out by inserting the socket-type cross connector 4 into the pile foundation 8, the grid support spherical connector is tightly fitted with the lower flange plate 2 through the upper flange plate 7 and is coaxially arranged, the upper grid connection ball 9 and the hinge upper support plate 6 are rigidly fixed to form a whole, the hinge lower support plate 10 is rigidly connected to the pile foundation 8 through the upper flange plate 7 and the lower flange plate 2 to form a whole, and there is an intermediate spherical slide plate 5 between the hinge upper support plate 6 and the hinge lower support plate 10. Due to the provision of the intermediate spherical slide plate 5, the hinge upper support plate 6 and the hinge lower support plate 10 have a certain degree of freedom and can rotate in an all-round manner within a certain range, thereby realizing the hinge connection of the upper grid connection ball 9 and the pile foundation 8, thereby enhancing the wind load resistance of the offshore photovoltaic large-span grid.

Claims

1. An articulated device for an offshore grid structure and a pile foundation, comprising a pile foundation (8) and an upper grid connection ball (9), characterized in that: A flange plate assembly is arranged on the top of the pile foundation (8), a grid support spherical connector is arranged on the top of the flange plate assembly, and an upper grid connection ball (9) is connected to the top of the grid support spherical connector.

2. The articulated device for offshore gantry structure and pile foundation according to claim 1, characterized in that: The flange plate assembly comprises a lower flange plate (2) arranged on the top of a pile foundation (8), an upper flange plate (7) is arranged on the top of the lower flange plate (2), the lower flange plate (2) and the upper flange plate (7) are arranged coaxially, and a grid-supported spherical connector is arranged on the top of the upper flange plate (7).

3. The articulated device for offshore gantry structure and pile foundation according to claim 2, characterized in that: The grid support spherical connector includes a hinge lower support plate (10) arranged on the top of the flange plate assembly, an intermediate spherical slide plate (5) is arranged on the inner bottom of the hinge lower support plate (10), the spherical surface of the intermediate spherical slide plate (5) is arranged away from the bottom of the hinge lower support plate (10), the spherical surface of the intermediate spherical slide plate (5) is slidably connected to the bottom end of the hinge upper support plate (6), the bottom end of the hinge upper support plate (6) is arranged in the hinge lower support plate (10), the top end of the hinge upper support plate (6) is arranged outside the hinge lower support plate (10), and a plurality of upper rib plates (1) are evenly arranged at the top of the hinge upper support plate (6) and along its circumference, and the tops of the plurality of upper rib plates (1) are connected to the upper grid connection ball (9).

4. The articulated device for offshore gantry structure and pile foundation according to claim 3, characterized in that: The top of each upper rib plate (1) is provided with an arc, and the concave surface of each arc is arranged toward the center of the upper grid connecting ball (9).

5. The articulated device for offshore gantry structure and pile foundation according to claim 3, characterized in that: The hinge lower support plate (10) comprises a bottom plate (10-1), the top of the bottom plate (10-1) is connected to one end of a cylindrical barrel (10-2), a retaining ring (10-3) is connected to the inner wall of the other end of the barrel (10-2), the bottom of the bottom plate (10-1) is connected to an upper flange plate (7), and the top of the bottom plate (10-1) is connected to the bottom plane of an intermediate spherical slide plate (5).

6. The articulated device for offshore gantry structure and pile foundation according to claim 5, characterized in that: The bottom end of the hinge upper support plate (6) is clamped with the lower surface of the retaining ring (10-3).

7. The articulated device for offshore gantry structure and pile foundation according to claim 5, characterized in that: The bottom plate (10-1), the cylinder (10-2), the intermediate spherical slide plate (5), and the hinge upper support plate (6) are all coaxially arranged with the upper flange plate (7).

8. The articulated device for offshore gantry structure and pile foundation according to claim 2, characterized in that: The lower surface of the upper flange plate (7) is connected to a socket-type cross connector (4), and the socket-type cross connector (4) passes through the lower flange plate (2) and is inserted into the pile foundation (8).

9. The articulated device for offshore gantry structure and pile foundation according to claim 8, characterized in that: The socket-type cross connector (4) comprises a first connecting plate (4-1), both side walls of which are provided with strip grooves (4-3), the two strip grooves (4-3) being arranged along the axis of the first connecting plate (4-1), a second connecting plate (4-2) being inserted into each of the strip grooves (4-3), one end of each of the first connecting plate (4-1) and the second connecting plate (4-2) being connected to an upper flange plate (7), and the other ends of each of the first connecting plate (4-1) and the second connecting plate (4-2) being inserted into a pile foundation (8).

10. The articulated device for offshore gantry structure and pile foundation according to claim 2, characterized in that: A plurality of lower flange stiffening plates (3) are evenly connected to the lower surface of the lower flange plate (2) along its circumference, and the plurality of lower flange stiffening plates (3) are all inserted into the pile foundation (8).

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