High-load safety anchor point for offshore wind power tower drum

Abstract

The utility model discloses a high-load safety anchor point for an offshore wind power tower drum, which belongs to the technical field of wind power tower drums and comprises a base, support pile limiting holes are uniformly formed in the outer side of the top of the base, a steel pipe pile through hole is formed in the middle of the base, and a guide mechanism for a steel pipe pile is arranged at the top of the base. Sliding grooves are evenly formed in the inner sides of the steel pipe pile penetrating holes, trapezoidal sliding blocks are slidably installed in the sliding grooves, the ends of the multiple sets of trapezoidal sliding blocks are attached to one another, the inclined faces of the tops of the trapezoidal sliding blocks are located in the steel pipe pile penetrating holes, and inverted-U-shaped stop levers are evenly, vertically and slidably arranged in the base. By means of the anchor point assembly composed of the base and the conical insertion rod, after the temporary supporting pile is installed, the device can be vertically placed at a fixing point and then automatically positioned at the seabed along with insertion of the steel pipe pile, fixing anchor points are added to the steel pipe pile at the seabed, the installation stability in the using process is improved, and installation is more convenient.

Description

Technical Field

[0001] The utility model relates to a high-load safety anchor point, in particular to a high-load safety anchor point for an offshore wind power tower, and belongs to the technical field of wind power towers. Background Art

[0002] Currently, monopile foundations are mostly used in the installation of offshore wind turbine towers. They are simple in structure, economical, and suitable for sea areas with a water depth of less than 50 meters. During installation, temporary support piles are first used to position and install the pile gripper. Then, the steel pipe pile is vertically inserted into the inside of the pile gripper. Finally, it is hammered to fix it. After the steel pipe pile is installed, the support piles and the pile gripper are removed.

[0003] Similar to the above application, there are still some deficiencies:

[0004] In some sea areas with strong winds and waves, the single pile foundation fixation method is used. The fixation stability at the bottom anchor point is poor and it is easy to shake, affecting the safety of the wind turbine tower.

[0005] Therefore, a high-load safety anchor point for offshore wind turbine towers is designed to optimize the above problems. Utility Model Content

[0006] The main purpose of the utility model is to provide a high-load safety anchor point for offshore wind turbine towers. The anchor point assembly composed of a base and a tapered plug rod can be used to vertically place the device at a fixed point after the temporary support pile is installed. Then, as the steel pipe pile is inserted, it is automatically positioned on the seabed. Fixed anchor points are added to the steel pipe piles on the seabed, which improves the installation stability during use and makes installation more convenient. A reinforcement mechanism composed of strip grooves, through grooves, slide rods, cross plates, and tapered blocks is arranged inside the tapered plug rod. During the insertion of the tapered plug rod, the thrust applied by the limit sleeve can be used to push the tapered block into the interior of the tapered plug rod and insert it into the ground, thereby improving the grip of the side of the tapered plug rod and making the installation more stable.

[0007] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0008] The top of the U-shaped stopper is fixed with the support frame, and the bottom end of the U-shaped stopper is fixed with the support frame.

[0009] Preferably, the tapered insert rod passes through the limiting collar, and the limiting collar and the tapered insert rod are slidably connected.

[0010] Preferably, the horizontal length of the top inclined surface of the trapezoidal slider is the same as the radius of the hole in the steel pipe pile, and the top of the trapezoidal slider is provided with a smooth coating.

[0011] Preferably, the guiding mechanism includes a sleeve and a guide cover. The sleeve is fixed at the middle position of the top of the base. The inner diameter of the sleeve is the same as the inner diameter of the hole in the steel pipe pile. The top of the sleeve is fixedly provided with a guide cover, and the top of the guide cover is open.

[0012] Preferably, reinforcing ribs are evenly fixed between the outer side of the insert and the top of the base, and the reinforcing ribs are vertically arranged on the top of the base.

[0013] Preferably: the reinforcement mechanism includes a strip groove, a through groove, a sliding rod, a horizontal plate and a conical block. The strip groove is opened at the top of the conical plug rod. A horizontal plate is provided for vertical sliding inside the strip groove. Both ends of the horizontal plate extend to the outside of the conical plug rod. A through groove is opened at the inner bottom of the conical plug rod. A sliding rod is installed for vertical sliding inside the conical plug rod. The sliding rod is fixed to the bottom end of the horizontal plate and extends to the inside of the through groove. The bottom end of the sliding rod is evenly hinged and installed with a conical block along the circumference.

[0014] Preferably, four sets of cones are installed at the bottom of the sliding rod, and the distance between adjacent cones is the same.

[0015] The beneficial effects of the utility model are:

[0016] This utility model provides a high-load safety anchor point for offshore wind turbine towers. The anchor point assembly, consisting of a base and a tapered rod, allows the device to be vertically placed at a fixed point after the temporary support pile is installed. Then, as the steel pipe pile is inserted, it is automatically positioned at the seabed, adding a fixed anchor point to the steel pipe pile at the seabed. This improves the installation stability during use and makes installation more convenient.

[0017] By arranging a reinforcement mechanism consisting of strip grooves, through grooves, sliding rods, cross plates and conical blocks inside the conical plug rod, the conical block can be pushed into the interior of the conical plug rod and inserted into the ground by utilizing the thrust applied by the limiting sleeve during the insertion of the conical plug rod, thereby improving the grip of the side of the conical plug rod and making the installation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front sectional view of the present invention;

[0019] Figure 2 This is a cross-sectional view of the base in a fixed state of the utility model;

[0020] Figure 3 This is a top view of the base of this utility model;

[0021] Figure 4 This is a cross-sectional view of the tapered insert rod of this utility model.

[0022] In the figure: 1. Base; 2. Steel pipe pile perforation; 3. Support pile limit hole; 4. Insert sleeve; 5. Guide cover; 6. Reinforcement rib; 7. Slide groove; 8. Trapezoidal slider; 9. Inverted U-shaped stop rod; 10. Conical insert rod; 11. Reinforcement mechanism; 12. Limiting ring; 13. Strip groove; 14. Through groove; 15. Sliding rod; 16. Horizontal plate; 17. Cone block. DETAILED DESCRIPTION

[0023] In order to make the technical solution of the present invention more clear and specific to those skilled in the art, the present invention is described in further detail below with reference to embodiments and drawings, but the implementation manner of the present invention is not limited thereto.

[0024] like Figures 1-4 As shown, this embodiment provides a high-load safety anchor point for an offshore wind turbine tower, including a base 1, a supporting pile limiting hole 3 evenly opened on the outer side of the top of the base 1, a steel pipe pile through-hole 2 opened in the middle position of the base 1, a guiding mechanism for the steel pipe pile is provided on the top of the base 1, a sliding groove 7 is evenly opened on the inner side of the steel pipe pile through-hole 2, a trapezoidal slider 8 is slidably installed inside the sliding groove 7, the ends of multiple groups of trapezoidal sliders 8 fit together, and the inclined surface of the top of the trapezoidal slider 8 is located inside the steel pipe pile through-hole 2, an inverted U-shaped baffle 9 is evenly and vertically slidably provided inside the base 1, and one end of the top of the inverted U-shaped baffle 9 passes through the sliding groove 7 and fits with the end of the trapezoidal slider 8, a limiting ring 12 is horizontally provided on the bottom of the base 1, and the bottom ends of the inverted U-shaped baffles 9 are fixedly connected to the limiting ring 12, a conical plug rod 10 is evenly and vertically installed on the outer side of the bottom of the base 1, and a reinforcement mechanism 11 is provided inside the conical plug rod 10.

[0025] After the pile is inserted, the bottom end of the pile is located in the hole 2 of the pile and is blocked by the trapezoidal slider 8. When the pile is inserted, the base 1 is subjected to the impact force at the same time, and the conical rod 10 is inserted into the seabed. As the conical rod 10 gradually goes deeper, the seabed will contact the limiting ring 12 and squeeze the limiting ring 12 upward. The upward movement of the limiting ring 12 will drive the inverted U-shaped blocking rod 9 to be withdrawn from the inside of the slide groove 7, and the trapezoidal slider 8 will retract to the inside of the slide groove 7 without resistance. At this time, the position of the base 1 is fixed, and the steel pipe pile is hammered continuously to insert the steel pipe pile into the seabed. The steel pipe pile is located at the seabed and has a fixed anchor point, which is more stable.

[0026] In this embodiment, the tapered insert 10 passes through the limiting collar 12, and the limiting collar 12 and the tapered insert 10 are slidably connected.

[0027] Local working principle: When the conical rod 10 is inserted into the seabed, the limiting collar 12 has a large surface area, which can make stable contact with the seabed and ensure that the limiting collar 12 slides upward stably.

[0028] In this embodiment, the horizontal length of the top inclined surface of the trapezoidal slider 8 is the same as the radius of the steel pipe pile hole 2, and the top of the trapezoidal slider 8 is provided with a smooth coating.

[0029] Local working principle: During the insertion of the steel pipe pile, it contacts the inclined surface of the trapezoidal slider 8. If the end of the trapezoidal slider 8 loses resistance, the trapezoidal slider 8 can be pushed toward the inside of the slide groove 7. The setting of the smooth coating on the trapezoidal slider 8 reduces the friction resistance on the trapezoidal slider 8, making the sliding of the trapezoidal slider 8 more convenient.

[0030] In this embodiment, the guiding mechanism includes a sleeve 4 and a guide cover 5. The sleeve 4 is fixed at the middle position of the top of the base 1. The inner diameter of the sleeve 4 is the same as the inner diameter of the steel pipe pile through-hole 2. The top of the sleeve 4 is fixed with a guide cover 5, and the top of the guide cover 5 is open.

[0031] Local working principle: When the steel pipe pile is vertically inserted, the top opening of the guide cover 5 is larger than the diameter of the steel pipe pile, so it can be easily aligned and inserted into the hole 2 of the steel pipe pile.

[0032] In this embodiment, reinforcing ribs 6 are uniformly fixed between the outer side of the insert 4 and the top of the base 1, and the reinforcing ribs 6 are vertically arranged on the top of the base 1.

[0033] Partial working principle: When supporting and limiting the steel pipe pile, the use of the reinforcing rib 6 improves the limiting stability of the steel pipe pile.

[0034] In this embodiment, the reinforcement mechanism 11 includes a strip groove 13, a through groove 14, a sliding rod 15, a horizontal plate 16 and a cone block 17. The strip groove 13 is opened at the top of the conical insertion rod 10, and a horizontal plate 16 is provided vertically slidingly inside the strip groove 13. Both ends of the horizontal plate 16 extend to the outside of the conical insertion rod 10. A through groove 14 is opened at the inner bottom of the conical insertion rod 10. A sliding rod 15 is installed vertically slidingly inside the conical insertion rod 10. The sliding rod 15 is fixed at the bottom end of the horizontal plate 16 and extends to the inside of the through groove 14. The bottom end of the sliding rod 15 is evenly hingedly installed with a cone block 17 along the circumference.

[0035] Local working principle: During the rising process of the limiting ring 12, an upward thrust will be applied to the horizontal plate 16, and the horizontal plate 16 will pull the sliding rod 15 upward. The cone block 17 at the bottom end of the sliding rod 15 will protrude to the outside of the conical rod 10 and insert into the inside of the soil to stabilize the position of the conical rod 10.

[0036] In this embodiment, four groups of cone blocks 17 are installed at the bottom end of the slide rod 15 , and the distances between adjacent cone blocks 17 are the same.

[0037] Partial working principle: By using multiple groups of cone blocks 17, the gripping force of the tapered rod 10 is improved, and the stability is higher.

[0038] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present invention within the scope disclosed by the present invention, which falls within the protection scope of the present invention.

Claims

1. A high-load safety anchor point for an offshore wind power tower, characterized in that: The utility model comprises a base (1), the outer side of the top of the base (1) is evenly provided with support pile limit holes (3), a steel pipe pile through hole (2) is provided at the middle position of the base (1), a guiding mechanism for the steel pipe pile is provided at the top of the base (1), a slide groove (7) is evenly provided on the inner side of the steel pipe pile through hole (2), and a trapezoidal slider (8) is slidably installed inside the slide groove (7), the ends of the plurality of sets of trapezoidal sliders (8) are mutually fitted, and the inclined surface of the top of the trapezoidal slider (8) is located at the steel pipe pile through hole (2 ), an inverted U-shaped blocking rod (9) is evenly and vertically slidably provided inside the base (1), and one end of the top of the inverted U-shaped blocking rod (9) passes through the slide groove (7) and fits with the end of the trapezoidal sliding block (8), a limiting ring (12) is horizontally provided at the bottom of the base (1), and the bottom ends of the inverted U-shaped blocking rods (9) are fixedly connected to the limiting ring (12), and a conical plug rod (10) is evenly and vertically installed on the outer side of the bottom of the base (1), and a reinforcing mechanism (11) is provided inside the conical plug rod (10).

2. A high-load safety anchor point for an offshore wind power tower according to claim 1, characterized in that: The conical insert rod (10) passes through the limiting collar (12), and the limiting collar (12) and the conical insert rod (10) are slidably connected.

3. A high-load safety anchor point for an offshore wind power tower according to claim 1, characterized in that: The horizontal length of the top inclined surface of the trapezoidal sliding block (8) is the same as the radius of the steel pipe pile penetration hole (2), and the top of the trapezoidal sliding block (8) is provided with a smooth coating.

4. A high-load safety anchor point for an offshore wind power tower according to claim 1, characterized in that: The guide mechanism comprises a sleeve (4) and a guide cover (5); the sleeve (4) is fixed at the middle position of the top of the base (1); the inner diameter of the sleeve (4) is the same as the inner diameter of the steel pipe pile hole (2); the top of the sleeve (4) is fixedly provided with the guide cover (5), and the top of the guide cover (5) is open.

5. A high-load safety anchor point for an offshore wind power tower according to claim 4, characterized in that: Reinforcing ribs (6) are evenly fixed between the outer side of the insert sleeve (4) and the top of the base (1), and the reinforcing ribs (6) are vertically arranged on the top of the base (1).

6. A high-load safety anchor point for an offshore wind power tower according to claim 1 or 4, characterized in that: The reinforcement mechanism (11) comprises a strip groove (13), a through groove (14), a slide rod (15), a horizontal plate (16) and a cone block (17); the strip groove (13) is arranged at the top of the cone plug rod (10); a horizontal plate (16) is arranged inside the strip groove (13) for vertical sliding; both ends of the horizontal plate (16) extend to the outside of the cone plug rod (10); a through groove (14) is arranged at the inner bottom of the cone plug rod (10); a slide rod (15) is arranged inside the cone plug rod (10) for vertical sliding; the slide rod (15) is fixed at the bottom end of the horizontal plate (16) and extends to the inside of the through groove (14); and a cone block (17) is evenly hingedly arranged at the bottom end of the slide rod (15) along the circumferential direction.

7. A high-load safety anchor point for an offshore wind power tower according to claim 6, characterized in that: The cone blocks (17) at the bottom of the slide rod (15) are all installed in four groups, and the distances between adjacent cone blocks (17) are the same.

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