Mounting and positioning frame of four-pile jacket

Abstract

The utility model belongs to the technical field of offshore wind power projects, and particularly relates to an installation positioning frame of a four-pile jacket, which comprises a platform plate, arc positioning rings are fixedly arranged at four corners of the platform plate at equal intervals, fixing cylinders are arranged at four corners of the lower side surface of the platform plate, the upper ends of the fixing cylinders penetrate through the platform plate to the upper side, and a floating block is arranged on the lower side of the platform plate. The floating blocks are inserted into the fixing cylinders, inserting rods are inserted into the upper ends of the fixing cylinders, the inserting rods penetrate through the fixing cylinders to the lower ends, and end blocks are arranged at the upper ends of the inserting rods. Compared with a fixed integral type support structure, the device is small in overall size, the weight can be greatly reduced, hoisting is convenient, the inserting rods can be independently transported and can be assembled in an inserted mode at a construction point, transportation is convenient, and within the length range of the inserting rods, the floating blocks can automatically float upwards to be adjusted relative to the inserting rods according to the depth of seawater, and the service life of the device is prolonged. And the installation and adjustment convenience of the device is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of offshore wind power projects, and particularly relates to an installation positioning frame for a four-pile jacket foundation. Background Art

[0002] The installation of a four-pile jacket foundation is a key construction process in offshore wind power projects, which involves an important connection between a wind turbine tower and an underwater pile foundation. This foundation form mainly consists of 4 pile foundations and a jacket foundation, and is suitable for offshore wind farms with large single-unit capacities, relatively deep water depths, and poor geological conditions. During the installation process, first, the four foundation steel pipes are accurately positioned and driven, and then the jacket foundation is hoisted and installed. After the jacket foundation is installed in place, the jacket foundation grouting is carried out to complete the connection between the steel pipe piles and the jacket foundation. When inserting the four foundation piles, generally, a pile stabilizing platform is used for installation positioning. Currently, the pile stabilizing platform is generally a fixed integral support structure, which is large in volume and heavy in weight, not convenient for offshore transportation and hoisting. In addition, it is not convenient to adjust according to the water depth at the position where the pile needs to be inserted. Content of the Utility Model

[0003] Aiming at the above problems, the purpose of the utility model is to provide an installation positioning frame for a four-pile jacket foundation, so as to solve the problems that when inserting the four foundation piles, generally, a pile stabilizing platform is used for installation positioning. Currently, the pile stabilizing platform is generally a fixed integral support structure, which is large in volume and heavy in weight, not convenient for offshore transportation and hoisting. In addition, it is not convenient to adjust according to the water depth at the position where the pile needs to be inserted.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is: an installation positioning frame for a four-pile jacket foundation, including a platform plate. Arc positioning rings are fixedly arranged at equal distances at the four corners of the platform plate. Fixed cylinders are arranged at the four corners of the lower side of the platform plate. The upper ends of the fixed cylinders penetrate through the platform plate to the upper side. A floating block is arranged on the lower side of the platform plate. The floating block is inserted into the fixed cylinder. Insertion rods are inserted into the upper ends of the fixed cylinders. The insertion rods penetrate through the fixed cylinders to the lower ends. End blocks are arranged at the upper ends of the insertion rods.

[0005] The beneficial effect of the utility model is: compared with the fixed integral support structure, the overall volume of this device is smaller, and the weight will be greatly reduced, which is convenient for hoisting. Moreover, the insertion rods can be transported separately and assembled by insertion at the construction site, which is convenient for transportation. And within the length range of the insertion rods, the floating block can automatically float and adjust relative to the insertion rods according to the water depth, greatly increasing the convenience of device installation and adjustment.

[0006] For transporting and protecting the floating block on the outside;

[0007] As a further improvement of the above technical solution: outer protection plates are respectively arranged at the four corners on the lower side of the platform plate corresponding to the arc positioning rings, and the floating blocks are clamped with the outer protection plates.

[0008] The beneficial effect of this improvement is that the outer protection plates are arranged to protect the floating blocks during transportation on the outside, increasing the protection strength of the outer structure and preventing the floating blocks from being extruded and deformed during transportation.

[0009] To increase the structural strength of the arc positioning ring;

[0010] As a further improvement of the above technical solution: reinforcing rods are symmetrically arranged on both sides of the lower side of the arc positioning ring, and the lower ends of the reinforcing rods are fixedly connected to the outer protection plates.

[0011] The beneficial effect of this improvement is to increase the structural strength of the arc positioning ring.

[0012] To increase the accuracy of pile insertion;

[0013] As a further improvement of the above technical solution: connection blocks are arranged on the lower sides of the outer protection plates away from the fixed cylinder, auxiliary positioning cylinders are arranged on the sides of the connection blocks away from the outer protection plates, and the centers of the auxiliary positioning cylinders are arranged directly opposite to the centers of the arc positioning rings.

[0014] The beneficial effect of this improvement is that when inserting the pile, positioning is carried out only through the arc positioning ring. When driving the pile, it is easy to occur the phenomenon of inclination. Through the preliminary positioning of the arc positioning ring and then the accurate pile insertion through the auxiliary positioning cylinder, the accuracy of pile insertion is increased.

[0015] To facilitate the sinking of the insertion rod into the seabed;

[0016] As a further improvement of the above technical solution: gravity cones are threadedly arranged at the lower ends of the insertion rods, and the tips of the gravity cones face downward.

[0017] The beneficial effect of this improvement is to increase the weight of the lower end of the insertion rod and facilitate the sinking of the insertion rod into the seabed.

[0018] To facilitate quickly marking the approximate depth of the seawater at the pile insertion point;

[0019] As a further improvement of the above technical solution: length markings are arranged on the sides of the insertion rods.

[0020] The beneficial effect of this improvement is to facilitate quickly marking the approximate depth of the seawater at the pile insertion point.

[0021] To facilitate unitized replacement and maintenance;

[0022] As a further improvement of the above technical solution: the floating block is composed of a plurality of floating plates. Corresponding to the fixed cylinders, insertion holes are respectively formed on the upper side of the floating plates. The fixed cylinders are inserted into the floating plates through the insertion holes one by one. Clamping grooves are formed at the four corners of each floating plate. The outer protection plate is clamped with the floating plates through the clamping grooves. A bottom plate is arranged on the lower side of the floating block. The bottom plate is inserted into the fixed cylinder and is clamped with the outer protection plate. Bolts are symmetrically arranged at the lower ends of the sides of the outer protection plate. The bolts penetrate through the outer protection plate and are in threaded connection with the bottom plate.

[0023] The beneficial effect of this improvement is as follows: Unscrew the bolts, remove the bottom plate downward, and then the floating plates can be removed from the lower side. The floating block is divided into a plurality of floating plates, which is convenient for unitized replacement and maintenance.

[0024] Parts not involved in this device are the same as or can be implemented by using the prior art. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the present utility model;

[0026] Figure 2 is a schematic connection structure diagram of the platform plate in the present utility model;

[0027] Figure 3 is a schematic connection structure diagram of the insertion rod in the present utility model;

[0028] Figure 4 is a schematic structural diagram of the floating plate in the present utility model;

[0029] In the figure: 1, platform plate; 2, arc positioning ring; 3, fixed cylinder; 4, floating block; 401, floating plate; 402, insertion hole; 403, clamping groove; 5, insertion rod; 6, end block; 7, gravity cone; 8, connecting block; 9, auxiliary positioning cylinder; 10, strengthening rod; 11, outer protection plate; 12, bottom plate; 13, bolt. Detailed Embodiment

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the drawings. The description in this part is only exemplary and explanatory, and should not have any restrictive effect on the protection scope of the present invention.

[0031] Such as Figure 1 — Figure 4As shown in the figure: An installation positioning frame for a four-pile jacket, including a platform plate 1. Arc positioning rings 2 are fixedly arranged at equal distances at the four corners of the platform plate 1. Fixed cylinders 3 are arranged at the four corners of the lower side of the platform plate 1. The upper ends of the fixed cylinders 3 penetrate through the platform plate 1 to the upper side. A floating block 4 is arranged on the lower side of the platform plate 1. The floating block 4 is inserted into the fixed cylinder 3. Insertion rods 5 are inserted into the upper ends of the fixed cylinders 3. The insertion rods 5 penetrate through the fixed cylinders 3 to the lower ends. End blocks 6 are arranged at the upper ends of the insertion rods 5. Compared with the fixed integral support structure, the overall volume of this device is smaller, and the weight will be greatly reduced, which is convenient for hoisting. Moreover, the insertion rods 5 can be transported separately and assembled by insertion at the construction site, which is convenient for transportation. And within the length range of the insertion rods 5, the floating block 4 can automatically float and adjust relative to the insertion rods 5 according to the depth of the seawater, greatly increasing the convenience of installing and adjusting the device. Outer protection plates 11 are arranged at the four corners of the lower side of the platform plate 1 corresponding to the arc positioning rings 2 one by one. The floating block 4 is clamped with the outer protection plates 11. The outer protection plates 11 are provided for transporting and protecting the floating block 4 on the outside, increasing the protection strength of the outer structure and preventing the floating block 4 from being extruded and deformed during transportation. Reinforcing rods 10 are symmetrically arranged on both sides of the lower side of the arc positioning ring 2. The lower ends of the reinforcing rods 10 are fixedly connected to the outer protection plates 11, increasing the structural strength of the arc positioning ring 2. Connecting blocks 8 are arranged on the lower sides of the outer protection plates 11 away from the fixed cylinders 3. Auxiliary positioning cylinders 9 are arranged on the sides of the connecting blocks 8 away from the outer protection plates 11. The centers of the auxiliary positioning cylinders 9 are arranged directly opposite to the centers of the arc positioning rings 2. When inserting the piles, positioning is carried out only through the arc positioning rings 2. When driving the piles, it is easy to occur the phenomenon of inclination. Preliminary positioning is carried out through the arc positioning rings 2, and then precise pile insertion is carried out through the auxiliary positioning cylinders 9, increasing the accuracy of pile insertion. Gravity cones 7 are threadedly arranged at the lower ends of the insertion rods 5. The tips of the gravity cones 7 face downwards, increasing the weight at the lower ends of the insertion rods 5 and facilitating the insertion rods 5 to sink to the seabed. Length markings are arranged on the sides of the insertion rods 5, facilitating quickly marking the approximate depth of the seawater at the pile insertion point. The floating block 4 is composed of a plurality of floating plates 401. Insertion holes 402 corresponding to the fixed cylinders 3 are opened on the upper sides of the floating plates 401. The fixed cylinders 3 are inserted into the floating plates 401 one by one through the insertion holes 402. Clamping grooves 403 are opened at the four corners of the floating plates 401. The outer protection plates 11 are clamped with the floating plates 401 through the clamping grooves 403. A bottom plate 12 is arranged on the lower side of the floating block 4. The bottom plate 12 is inserted into the fixed cylinders 3. The bottom plate 12 is clamped with the outer protection plates 11. Bolts 13 are symmetrically arranged at the lower ends of the sides of the outer protection plates 11. The bolts 13 penetrate through the outer protection plates 11 and are threadedly connected to the bottom plate 12. Unscrew the bolts 13, remove the bottom plate 12 downward, and then the floating plates 401 can be removed from the lower side, dividing the floating block 4 into a plurality of floating plates 401, which is convenient for unitized replacement and maintenance.

[0032] The working principle and usage process of the present utility model:

[0033] During use, the entire device is hoisted to the location where pile insertion is required by a hoisting machine, and then it is lowered onto the sea surface. The insertion rod 5 freely sinks to the seabed under the action of gravity. The end block 6 of the pile driver that needs to insert the pile is gently hammered to sink the bottom end of the insertion rod 5 into the seabed (only need to keep the insertion rod 5 stable without sinking too deep to avoid affecting the subsequent pulling out of the device by the hoisting machine). Under the buoyancy of seawater, the floating block 4 will support the platform plate 1 upward.The platform plate 1 drives the fixed cylinder 3 to move upward relative to the insertion rod 5. The platform plate 1 drives the arc positioning ring 2 to float on the sea surface. Under the action of the insertion rod 5 sunk into the seabed, the platform plate 1 will drive the arc positioning ring 2 to remain stable at the pile driving position. Subsequently, piles can be directly driven at the arc positioning ring 2. Compared with the fixed integral support structure, the overall volume of this device is smaller, and the weight will be greatly reduced, which is convenient for hoisting. Moreover, the insertion rod 5 can be transported separately and assembled by plugging at the construction site, which is convenient for transportation. And within the length range of the insertion rod 5, the floating block 4 can automatically float and adjust relative to the insertion rod 5 according to the depth of the sea water, greatly increasing the convenience of installing and adjusting the device. In addition, during use, outer protection plates 11 are respectively arranged at the four corners of the lower side of the platform plate 1 corresponding to the arc positioning ring 2. The floating block 4 is clamped with the outer protection plate 11. The outer protection plate 11 is provided to protect the floating block 4 during transportation on the outside, increasing the protection strength of the outer structure and preventing the floating block 4 from being extruded and deformed during transportation. In addition, during use, reinforcing rods 10 are symmetrically arranged on both sides of the lower side of the arc positioning ring 2. The lower ends of the reinforcing rods 10 are fixedly connected to the outer protection plate 11 respectively, increasing the structural strength of the arc positioning ring 2. In addition, during use, connecting blocks 8 are arranged on the lower sides of the sides of the outer protection plate 11 away from the fixed cylinder 3. Auxiliary positioning cylinders 9 are arranged on the sides of the connecting blocks 8 away from the outer protection plate 11. The centers of the auxiliary positioning cylinders 9 are arranged directly opposite to the center of the arc positioning ring 2. When driving piles, positioning is carried out only through the arc positioning ring 2. When driving piles, it is easy to occur the phenomenon of inclination. Preliminary positioning is carried out through the arc positioning ring 2, and then precise pile driving is carried out through the auxiliary positioning cylinder 9, increasing the accuracy of pile driving. In addition, during use, gravity cones 7 are threadedly arranged at the lower ends of the insertion rods 5. The tips of the gravity cones 7 face downward, increasing the weight of the lower ends of the insertion rods 5 and facilitating the insertion rods 5 to sink into the seabed. In addition, during use, length marks are arranged on the sides of the insertion rods 5, which is convenient for quickly marking the approximate depth of the sea water at the pile driving position. In addition, during use, the floating block 4 is composed of multiple floating plates 401. Insertion holes 402 are respectively opened on the upper sides of the floating plates 401 corresponding to the fixed cylinder 3. The fixed cylinder 3 is inserted into the floating plates 401 one by one through the insertion holes 402. Clamping grooves 403 are opened at the four corners of the floating plates 401. The outer protection plate 11 is clamped with the floating plates 401 through the clamping grooves 403. A bottom plate 12 is arranged on the lower side of the floating block 4. The bottom plate 12 is inserted into the fixed cylinder 3 and clamped with the outer protection plate 11. Bolts 13 are symmetrically arranged at the lower ends of the sides of the outer protection plate 11. The bolts 13 penetrate through the outer protection plate 11 and are threadedly connected to the bottom plate 12. Unscrew the bolts 13, remove the bottom plate 12 downward, and then the floating plates 401 can be removed from the lower side, dividing the floating block 4 into multiple floating plates 401, which is convenient for unitized replacement and maintenance.,

[0034] It should be noted that in this text, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] In this text, specific examples are used to illustrate the principles and implementation manners of the present invention. The description of the above examples is only for helping to understand the method of the present invention and its core idea. The above is only the preferred implementation manner of the present invention. It should be noted that due to the limitation of literal expression, objectively there are infinite specific structures. For those of ordinary skill in the art, without departing from the principle of the present invention, several improvements, retouches or changes can be made, or the above technical features can be combined in an appropriate manner; these improvements, retouches, changes or combinations, or directly applying the concept and technical solution of the invention to other occasions without improvement, shall all be regarded as the protection scope of the present invention.

Claims

1. A four-pile conductor frame installation and positioning frame, characterized in that: The platform plate (1) comprises a platform plate (1), wherein arc positioning rings (2) are fixedly arranged at four corners at equal intervals, a fixing tube (3) is arranged at the four corners of the lower side surface of the platform plate (1), the upper end of the fixing tube (3) passes through the platform plate (1) to the upper side, a floating block (4) is arranged on the lower side of the platform plate (1), the floating block (4) is plugged into the fixing tube (3), an insertion rod (5) is plugged into the upper end of the fixing tube (3), the insertion rod (5) passes through the fixing tube (3) to the lower end, and an end block (6) is arranged at the upper end of the insertion rod (5).

2. The installation and positioning frame of a four-pile conductor frame according to claim 1, characterized in that: The four lower corners of the platform plate (1) are provided with outer guard plates (11) corresponding to the arc positioning rings (2), and the floating blocks (4) are clamped with the outer guard plates (11).

3. The installation and positioning frame of a four-pile conductor frame according to claim 1, characterized in that: Reinforcement rods (10) are symmetrically arranged on both sides of the lower side of the circular arc positioning ring (2), and the lower ends of the reinforcement rods (10) are fixedly connected to the outer guard plate (11).

4. The installation and positioning frame of a four-pile conductor frame according to claim 2, characterized in that: A connection block (8) is provided on the lower side of the outer guard plate (11) away from the fixing tube (3), and an auxiliary positioning tube (9) is provided on the side of the connection block (8) away from the outer guard plate (11). The center of the auxiliary positioning tube (9) is arranged opposite to the center of the circular arc positioning ring (2).

5. The installation and positioning frame of a four-pile conductor frame according to claim 1, characterized in that: The lower end of the insertion rod (5) is threadedly provided with a gravity cone (7), and the tip of the gravity cone (7) faces downward.

6. The installation and positioning frame of a four-pile conductor frame according to claim 1, characterized in that: The sides of the insertion rods (5) are all provided with length markings.

7. The installation and positioning frame of a four-pile conductor frame according to claim 2, characterized in that: The floating block (4) is composed of a plurality of floating plates (401). The upper side of the floating plates (401) is provided with plug-in holes (402) corresponding to the fixing tubes (3). The fixing tubes (3) are plugged into the floating plates (401) one by one through the plug-in holes (402). The four corners of the floating plates (401) are provided with snap-in grooves (403). The outer guard plate (11) is snap-connected with the floating plates (401) through the snap-in grooves (403). The lower side of the floating block (4) is provided with a bottom plate (12). The bottom plate (12) is plugged into the fixing tubes (3). The bottom plate (12) is snap-connected with the outer guard plate (11). Bolts (13) are symmetrically provided at the lower ends of the sides of the outer guard plate (11). The bolts (13) penetrate the outer guard plate (11) and are threadedly connected with the bottom plate (12).

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