Anti-sinking device of offshore wind power pile sinking auxiliary platform

Abstract

The utility model provides an anti-sinking device for an offshore wind power pile sinking auxiliary platform, which is characterized in that the main body structure of a sleeve is spindle-shaped, the length of the upper part of the sleeve is larger than that of the lower part of the sleeve, the sleeve is gradually shrunk from the middle to two ends, at least one pair of lifting lugs is arranged at the upper end of the sleeve, and at least one pair of connecting lugs is arranged at the lower end of the sleeve; the sleeves are arranged on the pile sinking column in a detachable splicing and sleeving mode through the lifting lugs and the connecting lugs, the sleeves are fixed to the pile sinking column through the fixing pins, and the sleeves can be arranged on the pile sinking column in a stacked mode through the connecting mechanisms to form a multi-layer protection structure. The problems that the anti-sinking plate of the pile sinking auxiliary platform is easily covered by sludge and is difficult to pull out are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pile sinking auxiliary platform construction technical field especially to a kind of offshore wind power pile sinking auxiliary platform anti-sinking device. BACKGROUND

[0002] In the construction process of offshore wind farm, pile sinking construction of group pile foundation is a crucial process, which not only affects the installation progress of the entire wind turbine generator, but also directly relates to the safety and stability of the structure. A dedicated pile sinking auxiliary platform is usually used. The auxiliary platform provides a guide bracket for the inserted pile to ensure that the steel pipe pile can be accurately driven into the seabed and meet the strict technical requirements of position, perpendicularity, elevation and height difference, providing a more scientific and efficient construction method for offshore wind pile foundation engineering.

[0003] A anti-sinking plate is welded at the bottom of the guide frame. This design aims to solve the problem of guide frame inclination caused by uneven seabed surface. The large contact surface of the anti-sinking plate effectively disperses the pressure of the guide frame on the seabed, so that the guide frame as a whole can still maintain relative level and flatness even in the case of slight concave-convex seabed. However, the anti-sinking plate is easily trapped in the soft mud of the seabed due to its own weight, causing strong adsorption effect. After a typhoon, it is more likely to be covered with silt and difficult to pull out.

[0004] Therefore, it is necessary to design an anti-sinking device to make it easy to pull out the auxiliary platform after a typhoon. UTILITY MODEL CONTENT

[0005] The main purpose of the utility model is to provide an offshore wind power pile sinking auxiliary platform anti-sinking device to solve the problem of easy coverage of the anti-sinking plate of the pile sinking auxiliary platform with silt and difficult to pull out.

[0006] To solve the above technical problems, the utility model adopts the following technical scheme: an offshore wind power pile sinking auxiliary platform anti-sinking device, the sleeve main body structure is spindle-shaped, the upper length is greater than the lower length, and gradually shrinks from the middle to both ends, at least one pair of lifting lugs is arranged at the upper end of the sleeve, and at least one pair of connecting lugs is arranged at the lower end of the sleeve. The sleeve is symmetrically divided into two halves along the axial direction and is detachably spliced on the pile sinking column through the lifting lugs and the connecting lugs. The sleeve is fixed on the pile sinking column by a plurality of fixing pins, and a plurality of sleeves can be stacked on the pile sinking column by a connecting mechanism to form a multi-layer protective structure.

[0007] In the preferred scheme, the spindle-shaped structure of the sleeve is a continuous and smooth whole, the ratio of the upper height to the lower height is 2:1, and the outer diameters of both ends are equal. The inner diameter of the sleeve is equal to the outer diameter of the pile sinking column.

[0008] In the preferred solution, the upper end of the lug is provided with a rounded corner, the lower end is provided with an inclined corner, and the inclined surface extends towards the outer surface of the sleeve;

[0009] The lower end of the connecting lug is provided with a rounded corner.

[0010] In the preferred solution, the lug is sequentially provided with a lifting hole and a first mold hole from top to bottom, and the stud passes through the first mold hole to connect the two lugs.

[0011] In the preferred solution, the connecting lug is provided with a second mold hole, and the slotted stud passes through the second mold hole to connect the two connecting lugs.

[0012] In the preferred solution, the slotted stud is provided with a threaded structure in the middle for connecting with the two nuts, and the two ends are symmetrically provided with a tether groove for fixing the steel wire rope.

[0013] In the preferred solution, the steel wire rope passes through the lifting hole in the upper end lug of the lower sleeve, and is wound and fixed on the tether grooves at the two ends of the slotted stud in the connecting lug at the lower end of the upper sleeve, so that the upper and lower sleeves are fixed by stacking.

[0014] In the preferred solution, the upper end of the sleeve is uniformly provided with at least two fixing pins in the circumferential direction, the lower end of the fixing pin passes through the side wall of the sleeve and abuts against the pile column, and is used for fixing the relative position of the sleeve and the pile column.

[0015] In the preferred solution, the insertion angle of the fixing pin is parallel to the normal of the plane cut by the outer wall of the sleeve at the insertion point, and the end of the fixing pin abuts against the outer wall of the sleeve at the insertion point.

[0016] In the preferred solution, the end of the fixing pin abuts against the sleeve, and a canopy is further arranged at the abutting position, the width of the canopy is greater than the diameter of the end of the fixing pin, and the height of the canopy is greater than the height of the end of the fixing pin protruding out of the outer wall of the sleeve.

[0017] The utility model provides a kind of offshore wind power pile auxiliary platform anti-sinking device, sleeve main body structure is spindle shape with upper length greater than lower length, and gradually contract to uniform size from middle to both ends, at least one pair of lugs is provided on the upper end of sleeve, and at least one pair of connecting lugs is provided on the lower end, the sleeve is divided into two halves along axial symmetry, and is detachably spliced and set on pile column by lug, connecting lug, after sleeve slides to required position, it is fixed on pile column by multiple fixing pins, and multiple sleeves can be stacked and arranged on pile column by connecting mechanism, and form multilayer protective structure. It solves the problem that pile auxiliary platform anti-sinking plate is easily covered by silt and is difficult to pull out. BRIEF DESCRIPTION OF DRAWINGS

[0018] The utility model will be further described below in connection with drawings and examples:

[0019] Figure 1Is the utility model pile auxiliary platform and sleeve connection structure diagram;

[0020] Figure 2 Is the utility model multilayer sleeve and pile column connection structure axonometric drawing;

[0021] Figure 3 Is the utility model multilayer sleeve connection structure disassembly drawing;

[0022] Figure 4 Is the utility model lug and connecting lug connection structure diagram;

[0023] Figure 5 Is the utility model slotted stud axonometric structure diagram;

[0024] Figure 6 Is the utility model single-layer sleeve axonometric structure diagram;

[0025] Figure 7 Is the utility model single-layer sleeve axonometric structure diagram under explosion mode;

[0026] Figure 8 Is the utility model fixed pin connection longitudinal section structure diagram;

[0027] Figure 9 Is the utility model fixed pin connection plane section structure diagram

[0028] In the drawing: sleeve 1;Lug 2;Lifting hole 201;First mold hole 202;Connecting lug 3;Second mold hole 301;Pile 4;Fixed pin 5;Double head bolt 6;Slotted stud 7;Tether slot 701;Steel wire rope 8;Awning 9. Specific implementation

[0029] Example 1

[0030] As Figures 1-9 Shown, a kind of offshore wind power pile auxiliary platform prevents sinking device, sleeve 1 main body structure is fusiform, its upper length is greater than lower length, and gradually contract from middle to both ends, at least one pair of lug 2 is provided on the upper end of sleeve 1, at least one pair of connecting lug 3 is provided on the lower end, the sleeve 1 is divided into two halves along axial symmetry, and is detachably spliced and set on pile 4 by lug 2, connecting lug 3, the sleeve 1 is fixed on pile 4 by multiple fixed pins 5, multiple sleeves 1 can be stacked on pile 4 by connecting mechanism, form multilayer protection structure.

[0031] The application divides the sleeve 1 into two symmetrical halves, and the lifting lugs 2 and the connecting lugs 3 at the upper and lower ends ensure that the two halves of the sleeve 1 are tightly molded, so that they can be flexibly installed at the required position. The lifting lugs 2 and the connecting lugs 3 simultaneously serve as fins of the sleeve 1, increase the stability during pulling out, and help to destroy the silt layer, thereby reducing the pulling-out resistance. The spindle-shaped sleeve 1 structure with multiple segments can be stacked, so that the overall device can protect the length of the pile segment, and the multiple fixing pins 5 can realize quick release while ensuring accurate positioning and stable connection of the sleeve 1.

[0032] Under normal working conditions, the installation height and number of the sleeve 1 are selected according to the depth of the silt into the sea and the wave conditions. When the sea conditions are extremely severe, the sleeve 1 is lowered to the bottom of the auxiliary platform near the dustproof plate. The overall structure of the device is simple and flexible to install. The spindle-shaped structure prevents silt accumulation and reduces deposition on the lower dustproof plate.

[0033] In the preferred embodiment, the spindle-shaped structure of the sleeve 1 is a continuous and smooth whole, the height ratio of the upper part to the lower part is 2:1, and the outer diameters of the two ends are equal. The inner diameter of the sleeve 1 is equal to the outer diameter of the pile column 4.

[0034] The lower part of the spindle-shaped structure has a shorter height, which forms a larger inclined surface with a larger angle. When the sleeve 1 is positioned and installed by sliding downward, it has a larger repelling effect on the silt below, reducing the accumulation at the lower end of the pile column 4. The upper part has a higher height and a smaller angle, and the overall shape is a sharp cone. When pulling out, it is easier to separate from the silt due to the gradual reduction in diameter.

[0035] The equal outer diameters of the two ends ensure that when multiple sleeves 1 are stacked, the abutting contact surfaces do not have step surfaces due to diameter differences, preventing silt accumulation at this location.

[0036] In the preferred embodiment, the lifting lug 2 has a rounded upper end and an inclined lower end, and the inclined surface extends towards the outer surface of the sleeve 1.

[0037] The lower end of the connecting lug 3 is provided with a rounded corner.

[0038] By increasing the smoothness of the lifting lug 2 and the connecting lug 3 towards the surface cutting silt, it is easier to destroy the silt layer, reduce the pulling-out resistance, and make the pulling-out more smooth and stable.

[0039] In the preferred embodiment, the lifting lug 2 is provided with a lifting hole 201 and a first mold closing hole 202 from top to bottom, and a double-headed bolt 6 passes through the first mold closing hole 202 to connect the two lifting lugs 2.

[0040] In the preferred embodiment, the connecting lug 3 is provided with a second mold closing hole 301, and a slotted double-headed bolt 7 passes through the second mold closing hole 301 to connect the two connecting lugs 3.

[0041] In the preferred solution, the middle part of the slotted stud bolt 7 is provided with a threaded structure for connecting with the two side nuts, and the two ends are symmetrically provided with a tether groove 701 for fixing the steel wire rope 8.

[0042] In the preferred solution, the steel wire rope 8 passes through the lifting hole 201 of the lifting lug 2 on the upper end of the lower sleeve 1, and the two ends are wound and fixed on the tether grooves 701 on the two ends of the slotted stud bolt 7 in the connecting lug 3 of the lower end of the upper sleeve 1, so that the upper and lower sleeves 1 are fixed in a stacked manner.

[0043] When only a single sleeve 1 is needed, the lifting lug 2 and the connecting lug 3 are connected and fixed by the stud bolt 6 and the slotted stud bolt 7, and the two half sleeves 1 are connected and sleeved on the pile column 4, at this time the lifting hole 201 of the upper end lifting lug 2 of the sleeve 1 is used as the connecting point of the lifting device and the lifting hook when the sleeve 1 is disassembled;

[0044] When multiple sleeves 1 need to be stacked, the lifting lug 2 and the connecting lug 3 are used as the upper and lower end positioning connectors while being used as the mold closing members, and the steel wire rope 8 winds and fixes the connecting lug 3 of the upper end sleeve 1 and the lifting lug 2 of the lower end sleeve together, so as to realize the longitudinal close fit of the multiple sleeves 1.

[0045] In the preferred solution, at least two fixing pins 5 are uniformly arranged on the upper end of the sleeve 1 in the circumferential direction, and the fixing pins 5 are threadedly connected with the side wall of the sleeve 1, and the lower ends of the fixing pins 5 pass through the side wall of the sleeve 1 and abut against the pile column 4, so as to fix the relative position of the sleeve 1 and the pile column 4.

[0046] In the preferred solution, the insertion angle of the fixing pin 5 is parallel to the normal of the plane cut by the outer wall of the sleeve 1 at the insertion point, and the end of the fixing pin 5 abuts against the outer wall of the sleeve 1 at the insertion point.

[0047] In the preferred solution, a canopy 9 is further arranged at the abutting position of the end of the fixing pin 5 and the sleeve 1, the width of the canopy 9 is greater than the diameter of the end of the fixing pin 5, and the height of the canopy 9 is greater than the height of the end of the fixing pin 5 protruding from the outer wall of the sleeve 1.

[0048] When the single or multiple sleeves 1 are moved to the target position on the pile column 4, the fixing pins 5 are tightened, the lower ends of the fixing pins 5 abut against the pile column 4, a plurality of fixing pins 5 are circumferentially enclosed, and form a certain angle with the surface of the pile column 4, so as to limit the longitudinal movement and circumferential rotation of the pile column 4, and the canopy 9 is arranged to prevent silt from accumulating at the fixing pin 5.

[0049] The above embodiments are only preferred technical solutions of the present application, and should not be regarded as limiting the present application. The protection scope of the present application should be based on the technical solutions claimed in the claims, and the equivalent replacement solutions of the technical features claimed in the claims are within the protection scope. That is, the equivalent replacement improvements within this range are also within the protection scope of the present application.

Claims

1. A sinking prevention device for a pile driving auxiliary platform for offshore wind power, characterized in that: The sleeve (1) is spindle-shaped, the upper part is longer than the lower part, and gradually shrinks from the middle to both ends, the upper end of the sleeve (1) is provided with at least one pair of lifting lugs (2), the lower end is provided with at least one pair of connecting lugs (3), the sleeve (1) is symmetrically divided into two halves along the axial direction, and is detachably spliced on the pile column (4) through the lifting lugs (2) and the connecting lugs (3), the sleeve (1) is fixed on the pile column (4) through a plurality of fixing pins (5), and a plurality of sleeves (1) can be stacked on the pile column (4) through a connecting mechanism to form a multi-layer protective structure.

2. The anti-sinking device of the offshore wind power pile sinking auxiliary platform according to claim 1, characterized in that: The spindle-shaped structure of the sleeve (1) is a continuous and smooth whole, the height ratio of the upper part to the lower part is 2:1, and the outer diameters of both ends are equal, and the inner diameter of the sleeve (1) is equal to the outer diameter of the pile column (4).

3. The anti-sinking device of the offshore wind power pile sinking auxiliary platform according to claim 1, characterized in that: The upper end of the lifting lug (2) is provided with a rounded corner, and the lower end is provided with an inclined angle, and the extension direction of the inclined surface points to the outer surface of the sleeve (1). The lower end of the connecting lug (3) is provided with a rounded corner.

4. The anti-sinking device of the offshore wind power pile sinking auxiliary platform according to claim 3, characterized in that: The lifting lug (2) is provided with a lifting hole (201) and a first mold hole (202) from top to bottom, a stud bolt (6) penetrates through the first mold hole (202), and the two lifting lugs (2) are connected.

5. The anti-sinking device of the offshore wind power pile sinking auxiliary platform according to claim 3, characterized in that: The connecting lug (3) is provided with a second mold hole (301), and a slotted stud bolt (7) penetrates through the second mold hole (301), so that the two connecting lugs (3) are connected.

6. The anti-sinking device of a pile sinking auxiliary platform for offshore wind power according to claim 5, characterized in that: The slotted stud bolt (7) is provided with a threaded structure in the middle for connecting with the two nuts, and the two ends are symmetrically provided with a tether groove (701) for fixing the steel wire rope (8).

7. The anti-sinking device of a pile sinking auxiliary platform for offshore wind power according to claim 1, characterized in that: The steel wire rope (8) penetrates through the lifting hole (201) in the upper end lifting lug (2) of the lower sleeve (1), and is wound and fixed on the tether grooves (701) at the two ends of the slotted stud bolt (7) in the connecting lug (3) at the lower end of the upper sleeve (1), so that the upper and lower sleeves (1) are stacked and fixed.

8. The anti-sinking device of a pile sinking auxiliary platform for offshore wind power according to claim 1, characterized in that: The upper end of the sleeve (1) is uniformly provided with at least two fixing pins (5) in the circumferential direction, the lower end of the fixing pin (5) penetrates through the side wall of the sleeve (1) and abuts against the pile column (4), and is used for fixing the relative position of the sleeve (1) and the pile column (4).

9. The anti-sinking device of a pile sinking auxiliary platform for offshore wind power according to claim 8, characterized in that: The insertion angle of the fixing pin (5) is parallel to the normal of the plane cut by the outer wall of the sleeve (1) at the insertion point, and the end of the fixing pin (5) abuts against the outer wall of the sleeve (1) at the insertion point.

10. The anti-sinking device of a pile sinking auxiliary platform for offshore wind power according to claim 8, characterized in that: The end of the fixing pin (5) and the sleeve (1) are also provided with an eave (9), the width of the eave (9) is greater than the diameter of the end of the fixing pin (5), and the height is greater than the height of the end of the fixing pin (5) protruding out of the outer wall of the sleeve (1).

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