A leg landing and turning-over device and method

Abstract

The present application relates to the technical fields of ship assembly, and discloses a pile leg landing and turning-over device and method, which comprises a plurality of turning-over assemblies, each of which comprises a main plate, a clamping plate, a first limiting plate and a second limiting plate, the main plate extends along a horizontal direction, one end of the main plate is provided with a through hole for conveniently transporting the turning-over assembly, and the through hole penetrates the main plate; the clamping plate is connected to the end of the main plate away from the through hole and extends along a vertical direction; the first limiting plate and the second limiting plate are arranged at the end of the clamping plate away from the main plate, and the first limiting plate and the second limiting plate are arranged along the vertical direction at intervals, the first limiting plate, the second limiting plate and the clamping plate mutually enclose a limiting groove for fixing a cylindrical pile leg, and the limiting groove is matched and clamped with the cylindrical pile leg.

Description

Technical Field

[0001] This invention relates to the field of ship assembly technology, and in particular to a device and method for turning over a landing leg. Background Technology

[0002] Legs are key components of jack-up drilling rigs or platforms, used to support the entire hull or platform as it rises above the sea surface. Legs are generally cylindrical in shape, providing excellent load-bearing capacity and stability. A single cylindrical leg is approximately 40–70 meters long and 2–5 meters in diameter. Due to the structural characteristics of cylindrical legs, they can only be used horizontally for assembly, painting, and outfitting installation. After the leg work is completed, the legs need to be flipped 90 degrees for installation. The main lifting clamp is located at the top of the leg, and the auxiliary lifting clamp is located at the bottom. The leg is flipped using these clamps.

[0003] Currently, the existing technology for turning over pile legs has the following shortcomings: 1. The lower turning auxiliary lifting bracket is fixed on the outer surface of the cylindrical pile leg. Since the pile insertion accuracy needs to be controlled within 10mm, the turning auxiliary lifting bracket needs to be removed and the bracket feet need to be ground to ensure that it does not affect the pile insertion. However, it takes a lot of time to remove the lifting bracket and grind the bracket feet, which greatly affects the pile insertion efficiency; 2. The lower turning auxiliary lifting bracket is set on the inner surface of the cylindrical pile leg. Although this avoids the steps of removal and grinding, the pile leg cylinder is prone to scratching and pressing the steel wire rope during the turning process, which poses a safety hazard. This safety hazard may lead to the steel wire rope breakage, damage to the pile leg, or even more serious safety accidents. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that in the prior art, during the turning operation of cylindrical pile legs, the lower turning auxiliary lifting brackets are mostly fixed on the outer or inner surface of the pile leg. It is necessary to remove the turning auxiliary lifting brackets and grind the bracket feet, which leads to a reduction in pile insertion efficiency and the pile leg cylinder is prone to scraping and pressing the steel wire rope, posing a safety hazard.

[0005] To address the aforementioned technical problems, this invention provides a pile leg landing and turning device, comprising multiple turning components. Each turning component includes a main board, a clamping plate, a first eccentric plate, and a second eccentric plate. The main board extends horizontally, and one end of the main board has a through hole for facilitating the transport of the turning components, the through hole penetrating the main board. The clamping plate is connected to the end of the main board opposite to the through hole and extends vertically. The first eccentric plate and the second eccentric plate are disposed at the end of the clamping plate opposite to the main board, and the first eccentric plate and the second eccentric plate are spaced apart vertically. The first eccentric plate, the second eccentric plate, and the clamping plate surround each other to form a limiting groove for fixing the cylindrical pile leg, and the limiting groove engages with the cylindrical pile leg.

[0006] Furthermore, the distance between two adjacent turning components is 750mm.

[0007] In one embodiment, the turning assembly further includes a first web and a second web, which are respectively disposed at the left and right ends of the main board, and both the first web and the second web extend in a vertical direction.

[0008] In one embodiment, a first elbow plate is provided between the first web plate and the first eccentric plate. One end of the first elbow plate is connected to the first web plate and the other end is connected to the first eccentric plate. The number of first elbow plates is at least two, and adjacent first elbow plates are spaced apart in the horizontal direction.

[0009] In one embodiment, a second elbow plate is provided between the second web plate and the second eccentric plate. One end of the second elbow plate is connected to the second web plate, and the other end is connected to the second eccentric plate. The number of second elbow plates is at least two, and adjacent second elbow plates are spaced apart in the horizontal direction.

[0010] In one embodiment, the turning assembly further includes a third web plate, which is disposed at the other end of the card plate away from the limiting groove. The third web plate extends in a vertical direction and penetrates the main board body.

[0011] In one embodiment, the first and second plates are inclined in a direction away from the axis of the cylindrical pile leg, and the curvature of the inclination of the first and second plates is the same as the curvature of the inclination of the cylindrical pile leg's edge.

[0012] In one embodiment, an inclined first chamfer is provided at the connection between the third web plate and the first E-plate, the first chamfer being used to reinforce the first E-plate; an inclined second chamfer is provided at the connection between the third web plate and the second E-plate, the second chamfer being used to reinforce the second E-plate.

[0013] In one embodiment, the end of the motherboard away from the limiting groove is rounded to improve the stability of the motherboard when it contacts the ground after being flipped over.

[0014] Furthermore, all components in the turning assembly are fixed by welding.

[0015] In one embodiment, the pile leg landing and turning device further includes a channel steel component, which is disposed between two adjacent turning components. One end of the channel steel component is connected to one of the turning components, and the other end is connected to the other turning component.

[0016] Furthermore, the channel steel component is fixed to the first or second web of two adjacent turning components.

[0017] Based on the aforementioned pile leg landing and turning device, the present invention also provides a method for pile leg landing and turning, comprising the following steps:

[0018] Step S1: Transport the pile legs in a horizontal position to the construction site and hang the crane wire rope on the lifting bracket at the front end of the pile legs;

[0019] Step S2: After the lifting bracket is installed, transport at least two turning components to the lower end of the pile leg and insert the pile leg into the limiting groove. Temporarily fix at least two turning components with channel steel.

[0020] Step S3: After the turning component is installed, use a crane to lift the lifting brackets vertically, and the pile leg changes from a flat position to a vertical position, so that the turning component at the lower end of the pile leg contacts the ground.

[0021] Step S4: The crane continues to lift the lifting weights vertically. After the turning component at the lower end of the pile leg is away from the ground, the turning component will fall off from the lower end of the pile leg under the action of gravity.

[0022] Compared with existing technologies, the pile leg landing and turning device of this invention has the following advantages: The main board extends horizontally, providing a stable base for the entire turning assembly. One end of the main board has a through hole. This design not only reduces the weight of the entire assembly but also facilitates operation during transportation and hoisting. The turning assembly can be easily fixed and moved using slings or other hoisting tools through the through hole. A clamping plate connects to the end of the main board opposite to the through hole, ensuring the continuity and stability of the entire structure. The clamping plate extends vertically, forming a right angle or near-right angle with the main board, providing a support for the subsequent installation of the first and second E-plates. The device provides support; the first and second E-plates are spaced apart vertically, and together with the clamping plate, they form a limiting groove. This limiting groove can tightly fix the cylindrical pile leg, preventing it from sliding or falling off during the turning process. The limiting groove is an important part of the entire turning device, ensuring the stability and safety of the cylindrical pile leg during the turning process. At the same time, the limiting groove and the cylindrical pile leg are engaged, so that after the cylindrical pile leg is turned, the turning component can automatically fall off under the action of gravity, effectively improving the pile insertion efficiency of the cylindrical pile leg and eliminating the risk of the pile leg's cylinder scraping and pressing the hoisting wire rope. Attached Figure Description

[0023] Figure 1 This is a side view of the pile leg landing and turning device according to an embodiment of the present invention.

[0024] Figure 2 This is a front view of the pile leg landing and turning device according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram of the connection between the pile leg landing and turning device and the cylindrical pile leg in an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the connection between the pile leg landing and turning device and the cylindrical pile leg in another angle according to an embodiment of the present invention.

[0027] Figure 5 This is a schematic diagram of steps S1 to S2 in the pile leg landing and turning method of the present invention.

[0028] Figure 6 This is a schematic diagram of step S3 in the pile leg landing and turning method of the present invention.

[0029] Figure 7 This is a schematic diagram of step S4 in the pile leg landing and turning method of the present invention.

[0030] In the diagram, 1. Turning assembly; 11. Main board; 111. Through hole; 12. Clamping plate; 121. First chamfer; 122. Second chamfer; 13. First ferrule plate; 14. Second ferrule plate; 15. First web plate; 16. Second web plate; 17. Third web plate; 18. First elbow plate; 19. Second elbow plate;

[0031] 2. Cylindrical pile legs;

[0032] 3. Channel steel components. Detailed Implementation

[0033] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0034] In the description of this invention, it should be understood that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to that other element. The terms "mounted," "connected," and "attached" should be interpreted broadly, for example, referring to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two elements or an interaction between two elements. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] In the description of this invention, it should be understood that the terms "height," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in this invention to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0036] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

[0037] like Figures 1 to 7 As shown in the figure, a preferred embodiment of the present invention provides a pile leg landing and turning device, which includes multiple turning components 1. The turning component 1 includes a main board 11, a clamping plate 12, a first eccentric plate 13, and a second eccentric plate 14. The main board 11 extends horizontally, and one end of the main board 11 is provided with a through hole 111 for facilitating the transportation of the turning component 1. The through hole 111 penetrates the main board 11. The clamping plate 12 is connected to the end of the main board 11 opposite to the through hole 111, and the clamping plate 12 extends vertically. The first eccentric plate 13 and the second eccentric plate 14 are disposed at the end of the clamping plate 12 opposite to the main board 11, and the first eccentric plate 13 and the second eccentric plate 14 are spaced apart vertically. The first eccentric plate 13, the second eccentric plate 14, and the clamping plate 12 surround each other to form a limiting groove for fixing the cylindrical pile leg 2, and the limiting groove engages with the cylindrical pile leg 2.

[0038] Based on the above technical features, this embodiment of the invention, through the setting of the turning component 1, includes a main board 11, a clamping plate 12, a first eccentric plate 13, and a second eccentric plate 14. The main board 11 extends horizontally, providing a stable base for the entire turning component 1. One end of the main board 11 has a through hole 111. This design not only reduces the weight of the entire component but also facilitates operation during transportation and hoisting. Through the through hole 111, the turning component 1 can be easily fixed and moved using slings or other hoisting tools. The clamping plate 12 is connected to the end of the main board 11 opposite to the through hole 111, ensuring the continuity and stability of the entire structure. The clamping plate 12 extends vertically, forming a right angle or near-right angle structure with the main board 11, providing a basis for subsequent... The first E-plate 13 and the second E-plate 14 provide support; the first E-plate 13 and the second E-plate 14 are spaced apart in the vertical direction, and together with the clamping plate 12, they form a limiting groove. This limiting groove can tightly fix the cylindrical pile leg 2 and prevent it from sliding or falling off during the turning process. The limiting groove is an important part of the entire turning device. It ensures the stability and safety of the cylindrical pile leg 2 during the turning process. At the same time, the limiting groove and the cylindrical pile leg 2 are engaged, so that after the cylindrical pile leg 2 is turned, the turning component 1 can automatically fall off under the action of gravity, which effectively improves the pile insertion efficiency of the cylindrical pile leg 2 and eliminates the risk of the pile leg's cylinder scraping and pressing the hoisting wire rope.

[0039] Furthermore, the distance between two adjacent turning components 1 is 750mm. This 750mm distance ensures sufficient space between adjacent turning components 1 to avoid mutual interference during the turning process, while also ensuring the compactness of the overall layout of the device and improving space utilization. The reasonable spacing between adjacent turning components 1 helps to disperse the stress generated by the device during the turning process, thereby enhancing the stability of the overall structure. Too close a spacing may lead to stress concentration, while too far a spacing may reduce the overall rigidity of the device.

[0040] As some embodiments of the present invention, such as Figures 1 to 2 As shown, the turning assembly 1 also includes a first web plate 15 and a second web plate 16, which are respectively disposed at the left and right ends of the main board 11, and both the first web plate 15 and the second web plate 16 extend vertically. This arrangement effectively supports and extends the entire turning assembly 1 horizontally. Both web plates extend vertically, forming a nearly perpendicular structure with the main board 11, enhancing the assembly's stability and load-bearing capacity in the vertical direction. The addition of the first web plate 15 and the second web plate 16 provides additional support to the main board 11, making the entire turning assembly 1 less prone to deformation or damage when subjected to external forces. This design helps to disperse the stress generated during the turning process, improving the bending strength and torsional stiffness of the turning assembly 1.

[0041] As some embodiments of the present invention, such as Figures 1 to 2 As shown, a first elbow plate 18 is provided between the first web plate 15 and the first E-plate 13. One end of the first elbow plate 18 is connected to the first web plate 15, and the other end is connected to the first E-plate 13. There are at least two first elbow plates 18, and adjacent first elbow plates 18 are spaced apart in the horizontal direction. The fact that there are at least two first elbow plates 18 means that there are multiple supports between the first web plate 15 and the first E-plate 13, which further improves the load-bearing capacity of the structure. The arrangement of adjacent first elbow plates 18 spaced apart in the horizontal direction ensures the uniformity of support and avoids the structural complexity and weight increase caused by the first elbow plates 18 being too dense. At the same time, the addition of the first elbow plate 18 significantly improves the bending strength and torsional stiffness of the turning assembly 1 in the horizontal and vertical directions. During the turning process, the first elbow plate 18 can effectively disperse and bear the generated stress, preventing the turning assembly 1 from deforming or being damaged due to excessive force.

[0042] As some embodiments of the present invention, such as Figures 1 to 2As shown, a second elbow plate 19 is provided between the second web plate 16 and the second eccentric plate 14. One end of the second elbow plate 19 is connected to the second web plate 16, and the other end is connected to the second eccentric plate 14. There are at least two second elbow plates 19, and adjacent second elbow plates 19 are spaced apart in the horizontal direction. The second elbow plate 19 is positioned between the second web plate 16 and the second eccentric plate 14, serving as a connection and support, forming a symmetrical or similar structural layout with the first elbow plate 18. One end of the elbow plate 19 is connected to the second web plate 16, and the other end is connected to the second eccentric plate 14, enhancing the rigidity and stability of the entire turning assembly 1 on the other side. At the same time, the presence of at least two second elbow plates 19 ensures multiple supports between the second web plate 16 and the second eccentric plate 14, improving the load-bearing capacity of the structure. The design of the second elbow plate 19 is symmetrical to that of the first elbow plate 18, making the entire turning assembly 1 more structurally balanced and stable. This symmetry helps to disperse the stress generated during the turning process, preventing the assembly from deforming or being damaged due to uneven stress.

[0043] As some embodiments of the present invention, such as Figures 1 to 2 As shown, the tilting assembly 1 also includes a third web plate 17, which is located at the other end of the clamping plate 12 opposite to the limiting groove. The third web plate 17 extends vertically and penetrates the main plate 11. The third web plate 17 is located at the other end of the clamping plate 12 opposite to the limiting groove, i.e., the non-supported end of the clamping plate 12. The fact that the third web plate 17 penetrates the main plate 11 means that it is not only connected to the clamping plate 12 but also forms a tight connection with the main plate 11. This through-hole design enhances the connection strength between the main plate 11 and the clamping plate 12, making the entire tilting assembly 1 more stable and less prone to deformation under stress. Simultaneously, the addition of the third web plate 17 provides an additional vertical support point for the tilting assembly 1, enhancing its load-bearing capacity and bending strength in the vertical direction. During the tilting process, the third web plate 17 can effectively disperse and bear the generated stress, preventing the tilting assembly 1 from being damaged or failing due to excessive force.

[0044] As some embodiments of the present invention, such as Figures 1 to 2As shown, the first E-plate 13 and the second E-plate 14 are inclined in a direction away from the axis of the cylindrical pile leg 2, and the curvature of the inclination of the first E-plate 13 and the second E-plate 14 is the same as the curvature of the inclination of the cylindrical pile leg 2. The inclined design of the first E-plate 13 and the second E-plate 14 allows them to better fit the cylindrical pile leg 2, ensuring close contact between the device and the pile leg during the turning process. This fit not only improves the support and stability of the device for the pile leg, but also reduces friction and wear caused by poor contact, extending the service life of the device. The fact that the curvature of the first E-plate 13 and the second E-plate 14 is the same as the curvature of the inclination of the cylindrical pile leg means that during the turning process, the E-plates can evenly distribute and bear the stress generated by the pile leg, avoiding stress concentration. This design helps to optimize the mechanical properties of the device and improve its stability and load-bearing capacity under stress.

[0045] As some embodiments of the present invention, such as Figures 1 to 2 As shown, an inclined first chamfer 121 is provided at the connection between the third web plate 17 and the first E-plate 13, which is used to reinforce the first E-plate 13; an inclined second chamfer 122 is provided at the connection between the third web plate 17 and the second E-plate 14, which is used to reinforce the second E-plate 14. The inclined first chamfer 121 is coordinated with the inclined direction of the first E-plate 13, forming a smooth transition structure. This structure helps to disperse and bear the stress generated by the first E-plate 13 during the turning process, preventing stress concentration from causing deformation or damage to the E-plate. At the same time, the first chamfer 121 also increases the contact area between the third web plate 17 and the first E-plate 13, improving the connection strength and stability between them. The design of the second chamfer 122 is similar to that of the first chamfer 121. It is also inclined and coordinated with the inclination direction of the second E-plate 14. It also plays the role of dispersing and bearing stress, preventing the second E-plate 14 from deforming or being damaged when subjected to force. The second chamfer 122 also increases the contact area between the third web 17 and the second E-plate 14, enhancing the connection strength and stability between them.

[0046] As some embodiments of the present invention, such as Figures 1 to 2 As shown, the end of the motherboard 11 facing away from the limiting groove is rounded to improve the stability of the motherboard 11 when it contacts the ground after being flipped over. The rounded end face can more effectively disperse the pressure when the motherboard 11 contacts the ground, avoiding deformation of the motherboard 11 caused by pressure concentration. This pressure dispersion helps protect the ground and the motherboard 11, and extends the service life of the device.

[0047] Furthermore, all components in the turning assembly 1 are fixed by welding. This welding-fixing of all components in the turning assembly 1 is an effective design choice. It not only improves the structural strength, stability, and durability of the device, but also enhances its load-bearing capacity and safety. At the same time, welding fixation also has advantages such as simple manufacturing process, low cost, and convenient maintenance. This design makes the pile leg grounding turning device more reliable, efficient, and durable in practical applications, capable of meeting various complex and changing work requirements.

[0048] As some embodiments of the present invention, such as Figure 4 As shown, the pile leg landing and turning device also includes a channel steel component 3. The channel steel component 3 is disposed between two adjacent turning components 1. One end of the channel steel component 3 is connected to one of the turning components 1, and the other end is connected to the other turning component 1. The channel steel component 3, disposed between two adjacent turning components 1, acts as a bridge-like connection, tightly connecting the various independent turning components 1 together to form an integral structure. Through the connection of the channel steel component 3, the relative position between adjacent turning components 1 is fixed, effectively preventing relative movement or misalignment caused by external forces during use, thereby enhancing the overall stability of the device.

[0049] As some embodiments of the present invention, such as Figures 5 to 7 As shown, the present invention also provides a method for turning over a pile leg after it has landed, applicable to the aforementioned pile leg turning over device, which includes the following steps:

[0050] Step S1: Transport the pile leg in its flat position to the construction site and attach the crane wire rope to the lifting bracket at the front end of the pile leg. During transportation, ensure the pile leg is stable and undamaged; reinforcement may be necessary using support frames or fixing straps. At the construction site, check the crane's condition to ensure it is working properly and meets safety standards. Select a suitable wire rope, ensuring its load-bearing capacity matches the weight of the pile leg and that the wire rope is free from wear, breakage, or other safety hazards. Locate the lifting bracket at the front end of the pile leg; this is a specially designed connection point for lifting. Attach the crane wire rope correctly to the lifting bracket, ensuring a secure connection that will not slip. When attaching the wire rope, follow safety operating procedures to ensure the operator is not injured.

[0051] Step S2: After the lifting brackets are installed, transport at least two turning components 1 to the lower end of the pile leg and insert the pile leg into the limiting groove. Temporarily fix at least two turning components 1 with channel steel. Confirm that the lifting brackets are firmly attached to the lifting brackets at the front end of the pile leg and that the crane wire rope is ready for lifting operations at any time. Check the condition of the pile leg to ensure that it is not damaged or deformed and is lying flat and stable. Transport the turning components 1 to the lower end of the pile leg, align the limiting groove of the turning components 1 with the lower end of the pile leg, and slowly insert the cylindrical side of the pile leg into the limiting groove. Use the channel steel 3 as a temporary fixing component to connect at least two turning components 1 together.

[0052] Step S3: After the tilting component 1 is installed, use a crane to lift the lifting weights vertically, changing the pile leg from a horizontal position to a vertical position. The tilting component 1 at the lower end of the pile leg should contact the ground. Start the crane and slowly lift the lifting weights vertically. During the lifting process, maintain the stability of the crane and avoid sudden acceleration or deceleration that could cause the pile leg to sway. The operator should closely monitor the state of the pile leg to ensure it is lifted smoothly without tilting or twisting. As the crane lifts the pile leg, it gradually changes from a horizontal position to a vertical position. During this process, the tilting component 1 plays a supporting and guiding role, ensuring that the pile leg can be tilted smoothly. Pay attention to controlling the speed and force of the tilting to avoid excessively fast or forceful tilting that could damage the pile leg or the tilting component 1. When the pile leg is fully tilted to a vertical position, the tilting component 1 at the lower end of the pile leg should contact the ground.

[0053] Step S4: The crane continues to lift the lifting weights vertically. Once the turning component 1 at the lower end of the pile leg is away from the ground, the turning component 1 will detach from the lower end of the pile leg under the influence of gravity. After the pile leg is stably vertical and the turning component 1 at the lower end of the pile leg is in contact with the ground, the crane operator should continue to lift the lifting weights slowly and steadily vertically, observing the state of the turning component 1 and the lower end of the pile leg. When the crane lifts the pile leg to a sufficient height so that the turning component 1 at the lower end of the pile leg is away from the ground, the crane should stop lifting. At this point, under the influence of gravity, the turning component 1 will completely detach from the lower end of the pile leg and safely fall back to the ground, ensuring that the pile leg is not affected or damaged by the detachment of the turning component 1, thus completing the entire pile leg landing and turning operation.

[0054] In summary, the present invention provides a pile leg landing and turning device and method. Compared with the prior art, its advantages are as follows: the main board 11 extends horizontally, providing a stable base for the entire turning assembly 1. One end of the main board 11 has a through hole 111. This design not only reduces the weight of the entire assembly but also facilitates operation during transportation and hoisting. The turning assembly 1 can be easily fixed and moved using slings or other hoisting tools through the through hole 111. The clamping plate 12 is connected to the end of the main board 11 opposite to the through hole 111, ensuring the continuity and stability of the entire structure. The clamping plate 12 extends vertically, forming a right angle or near-right angle structure with the main board 11, which provides a foundation for the subsequent first clamping plate 13 and... The second E-plate 14 provides support; the first E-plate 13 and the second E-plate 14 are spaced apart in the vertical direction. The first E-plate 13 and the second E-plate 14 together with the clamping plate 12 form a limiting groove. This limiting groove can tightly fix the cylindrical pile leg 2 and prevent it from sliding or falling off during the turning process. The limiting groove is an important part of the entire turning device. It ensures the stability and safety of the cylindrical pile leg 2 during the turning process. At the same time, the limiting groove and the cylindrical pile leg 2 are engaged, so that after the cylindrical pile leg 2 is turned, the turning component 1 can automatically fall off under the action of gravity, which effectively improves the pile insertion efficiency of the cylindrical pile leg 2 and eliminates the risk of the pile leg's cylinder scraping and pressing the hoisting wire rope.

[0055] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be considered within the scope of protection of the present invention.

Claims

1. A pile leg landing and turning device, comprising a cylindrical pile leg to be turned over, characterized in that, It includes multiple flipping components, each comprising a motherboard, a card plate, a first RC plate, and a second RC plate. The motherboard extends horizontally, and a through hole is provided at one end of the motherboard, the through hole penetrating the motherboard; The card plate is connected to the end of the main board opposite to the through hole, and the card plate extends in a vertical direction; The first and second plates are disposed at the end of the clamping plate away from the main plate, and the first and second plates are spaced apart in the vertical direction. The first plate, the second plate, and the clamping plate surround each other to form a limiting groove for fixing the cylindrical pile leg, and the limiting groove engages with the cylindrical pile leg. The flipping assembly further includes a first web plate and a second web plate, which are respectively disposed at the left and right ends of the main board, and both the first web plate and the second web plate extend vertically. The flipping assembly also includes a third web plate, which is disposed at the other end of the card plate away from the limiting groove. The third web plate extends vertically and penetrates the main board body. The end of the main board away from the limiting groove is circular to improve the stability of the main board in contact with the ground after flipping. It also includes a channel steel component, which is disposed between two adjacent turning components. One end of the channel steel component is connected to one of the turning components, and the other end is connected to the other turning component.

2. The pile leg landing and turning device according to claim 1, characterized in that, A first elbow plate is provided between the first web plate and the first eccentric plate. One end of the first elbow plate is connected to the first web plate and the other end is connected to the first eccentric plate. There are at least two first elbow plates, and two adjacent first elbow plates are spaced apart in the horizontal direction.

3. The pile leg landing and turning device according to claim 2, characterized in that, A second elbow plate is provided between the second web plate and the second eccentric plate. One end of the second elbow plate is connected to the second web plate and the other end is connected to the second eccentric plate. There are at least two second elbow plates, and two adjacent second elbow plates are spaced apart in the horizontal direction.

4. The pile leg landing and turning device according to claim 1, characterized in that, The first and second plates are inclined in a direction away from the axis of the cylindrical pile leg, and the curvature of the first and second plates is the same as the curvature of the cylindrical pile leg's edge.

5. The pile leg landing and turning device according to claim 4, characterized in that, An inclined first chamfer is provided at the connection between the third web plate and the first E-plate, the first chamfer being used to reinforce the first E-plate. An inclined second chamfer is provided at the connection between the third web plate and the second E-plate, the second chamfer being used to reinforce the second E-plate.

6. A method for turning over a pile leg after it has landed, comprising using the pile leg turning over device as described in any one of claims 1-5, characterized in that, Includes the following steps: Step S1: Transport the pile legs in a horizontal position to the construction site and hang the crane wire rope on the lifting bracket at the front end of the pile legs; Step S2: After the lifting bracket is installed, transport at least two turning components to the lower end of the pile leg and insert the pile leg into the limiting groove. Temporarily fix at least two turning components with channel steel. Step S3: After the turning component is installed, use a crane to lift the lifting brackets vertically, and the pile leg changes from a flat position to a vertical position, so that the turning component at the lower end of the pile leg contacts the ground. Step S4: The crane continues to lift the lifting weights vertically. After the turning component at the lower end of the pile leg is away from the ground, the turning component will fall off from the lower end of the pile leg under the action of gravity.

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