Pile fastening device installed on anchor fastening ship and used for limiting free swing of pile top

Abstract

The utility model discloses a pile fastening device installed on an anchor fastening ship and used for limiting free swing of a pile top, which comprises a U-shaped opening base, two fixed support legs, two movable support legs, an action oil cylinder, rollers and a power and control system, the U-shaped opening base is fixed on the side surface of the ship, the two fixed support legs are fixed at the internal corners of the U-shaped opening base, and the movable support legs are fixed at the internal corners of the U-shaped opening base. The two fixed supporting legs are arranged at an angle of 90 degrees, the two movable supporting legs are connected with the side wall of the U-shaped opening base through pin shafts, the movable supporting legs are L-shaped, the rear ends of the movable supporting legs are connected with action oil cylinders, rollers are transversely arranged at the front ends of the movable supporting legs, and the action oil cylinders are connected with a power and control system. According to the device, the pile top enters among the four supporting legs through movement of a ship, a closed-loop structure is formed after closing, free swing of the steel pipe pile is limited, the reinforcing and supporting effects are achieved, and it is ensured that the pile body is located at the accurate pile position all the time.

Description

Technical Field

[0001] This utility model belongs to the field of steel pipe pile positioning technology, specifically relating to a pile securing device installed on a fixed anchor ship to restrict the free swing of the pile top. Background Technology

[0002] Many projects now require the construction of extended steel pipe piles in the sea or rivers. The piles can be up to 100 meters long and more than 1 meter in diameter. After the piles are driven, the pile body is 40 meters into the soil, 55 meters from the mud surface to the water surface, and 5 meters above the water surface. The maximum flow velocity of the water is more than 3 m / s. The vertical pile body is affected by huge undirected water flow force, and the top of the pile swings freely in the water flow, with a maximum amplitude of more than 3 meters. Eventually, the fatigue limit of the steel pipe pile is reached, causing the steel pipe pile to deform or break, requiring rework and reconstruction. Utility Model Content

[0003] To address the aforementioned problems, this utility model discloses a pile-fixing device installed on a fixed-anchor ship to restrict the free swing of the pile top. This device restricts the free swing of the steel pipe pile, providing reinforcement and support, and ensuring that the pile body is always in the accurate pile position.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows:

[0005] A bollard device installed on a moored vessel to restrict the free swinging of the bollard top includes: a U-shaped open base, fixed legs, movable legs, hydraulic cylinders, rollers, and a power and control system.

[0006] The U-shaped opening base is fixed to the side of the ship, with the opening of the U-shaped opening base facing away from the ship. The two fixed legs are fixed at the inner corner of the U-shaped opening base, and the two fixed legs are set at 90°. The two movable legs are connected to the side wall of the U-shaped opening base by pins. The movable legs are L-shaped, and the rear end of the movable legs is connected to an actuating cylinder. The front end of the movable legs is provided with a roller. The actuating cylinder is connected to the power and control system.

[0007] As an improvement of this utility model, the U-shaped opening base is connected to the side of the ship by bolts.

[0008] As an improvement of this utility model, the opening of the U-shaped opening base extends outward to form a trumpet-shaped guide block, which is larger on the outside and smaller on the inside.

[0009] As an improvement of this utility model, the fixed support leg is a box girder structure.

[0010] As an improvement of this utility model, the movable support leg is a box girder structure.

[0011] As an improvement of this utility model, before fixing the pile body, the movable support leg forms a 45° angle with the fixed support leg, and after fixing the pile body, the movable support leg forms a 90° angle with the fixed support leg. At this time, the angles between the two fixed support legs and the two movable support legs are all 90°, forming a closed loop structure to lock the pile body.

[0012] As an improvement of this utility model, the roller is positioned at 3 / 4 of its length within the front groove of the movable support leg.

[0013] The beneficial effects of this utility model are as follows:

[0014] This utility model discloses a pile securing device installed on a fixed-anchor ship to restrict the free swing of the pile top. By moving the ship, the pile top enters between the four outriggers, forming a closed loop structure after closing, which restricts the free swing of the steel pipe pile, plays a role in reinforcement and support, and ensures that the pile body is always in the accurate pile position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the movable support leg and the fixed support leg locking the pile body according to the present invention.

[0016] Figure 2 This is a diagram showing the retracted state of the movable support leg described in this utility model.

[0017] Figure 3 This is a schematic diagram of the movable support leg described in this utility model.

[0018] List of identifiers in attached diagrams:

[0019] 1. U-shaped open base, 2. Fixed support leg, 3. Movable support leg, 4. Hydraulic cylinder, 5. Roller, 6. Pin, 7. Guide block, 8. Closed-loop structure. Detailed Implementation

[0020] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0021] As shown in the figure, the present invention relates to a stake securing device installed on a staked vessel to restrict the free swinging of the stake top, comprising: a U-shaped open base 1, fixed legs 2, movable legs 3, actuating cylinders 4, rollers 5, and a power and control system.

[0022] The U-shaped opening base 1 is fixed to the side of the ship with bolts, and the opening of the U-shaped opening base 1 faces away from the ship. The two fixed legs 2 are fixed at the inner corner of the U-shaped opening base 1 and are set at 90°. The two movable legs 3 are connected to the side wall of the U-shaped opening base 1 by pins 6. The movable legs 3 are L-shaped. The rear end of the movable legs 3 is connected to the actuation cylinder 4. The front end of the movable legs 3 is horizontally provided with rollers 5. The actuation cylinder 4 is connected to the power and control system.

[0023] During operation, the ship moves according to the satellite measurement and positioning system. The device moves with the ship from one side of the pile to the pile position. The operator remotely operates the hydraulic cylinder 4 to extend the movable outrigger 3. The two fixed outriggers and the two movable outriggers form a closed loop structure to lock the pile. The ship adjusts its position in a timely manner according to the satellite measurement and positioning system to ensure that the pile is always in the accurate pile position. The hydraulic cylinder 4 controls the opening and closing of the movable outrigger 3 and provides reliable support for the movable outrigger 3 during the pile securing operation.

[0024] The opening of the U-shaped opening base 1 of this utility model extends outward to form a trumpet-shaped guide block 7, which is larger on the outside and smaller on the inside, which is beneficial for guiding the pile body into the U-shaped opening base 1.

[0025] The fixed support leg 2 and the movable support leg 3 of this utility model are both box girder structures, which can be reliably fixed on the U-shaped open base 1, providing reliable support for forming a reliable closed-loop structure.

[0026] Before the pile body is fixed, the movable leg 3 forms a 45° angle with the fixed leg 2 (at this time, the movable leg 3 retracts). After the pile body is fixed, the movable leg 3 forms a 90° angle with the fixed leg 2 (at this time, the movable leg 3 extends). At this time, the angles between the two fixed legs and the two movable legs are all 90°, forming a closed loop structure 8 to lock the pile body.

[0027] During the piling process, the ship is affected by wind and waves, and moves up and down relative to the pile. This invention provides a roller 5 laterally positioned at the front end of the movable outrigger 3. Figure 3 As shown, the roller 5 can reduce the friction between the support leg and the pile body, reduce the impact load on the U-shaped open base 1, and protect the entire mechanism. The position of the roller 3 / 4 is set in the front groove of the movable support leg 3, and the roller 5 can roll freely.

[0028] It should be noted that the above content merely illustrates the technical concept of this utility model and cannot be used to limit the scope of protection of this utility model. For those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and all such improvements and modifications fall within the scope of protection of the claims of this utility model.

Claims

1. A pile restraining device for mounting on a vessel for restraining free swinging of a pile head, characterised in that: Include: U-shaped opening base, fixed leg, movable leg, action oil cylinder, roller and power and control system, The U-shaped opening base is fixed on the side of the ship, the opening of the U-shaped opening base faces away from the ship, two fixed legs are fixed at the inner corners of the U-shaped opening base, the two fixed legs are arranged at 90°, two movable legs are connected with the side walls of the U-shaped opening base through a pin shaft, the movable leg is L-shaped, the rear end of the movable leg is connected with the action oil cylinder, the front end of the movable leg is transversely provided with a roller, and the action oil cylinder is connected with the power and control system.

2. A pile restraining device for attachment to a vessel for restraining free swinging of a pile head as claimed in claim 1 wherein: The U-shaped opening base is connected with the side of the ship through bolts.

3. A pile restraining device for use on a floating vessel for restraining the free swing of a pile head as claimed in claim 1, wherein: The opening of the U-shaped opening base extends outward to form a horn-shaped guide block, which is large outside and small inside.

4. A pile restraining device for use on a floating vessel for restraining the free swing of a pile head as claimed in claim 1, wherein: The fixed leg is a box girder structure.

5. A pile restraining device for use on a floating vessel for restraining the free swing of a pile head as claimed in claim 1, wherein: The movable leg is a box girder structure.

6. A pile restraining device for use on a floating vessel for restraining the free swing of a pile head as claimed in claim 1, characterised in that: Before fixing the pile body, the movable leg and the fixed leg form a 45° angle, and after fixing the pile body, the movable leg and the fixed leg form a 90° angle, at which time the two fixed legs and the two movable legs form a closed loop structure to lock the pile body.

7. A pile restraining device for use on a floating vessel for restraining the free swing of a pile head as claimed in claim 1, wherein: The position of the roller 3 / 4 is arranged in the front end groove of the movable leg.

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