Pile sinking positioning device

Abstract

The utility model relates to the field of offshore photovoltaic technology, and discloses a pile sinking positioning device which comprises a base frame. The multiple guide petals are connected to the base frame, the guide petals have an open state and a closed state, in the closed state, the guide petals can be spliced into a guide structure, the guide structure is provided with a guide channel used for containing the foundation pile, and in the open state, an avoiding hole allowing the foundation pile to be separated from the guide channel is formed in the guide structure; the driving mechanism is connected to the base frame and used for driving the base frame to move. The pile sinking positioning device does not need to be moved through a floating crane ship in the using process, can move synchronously with the floating crane ship, automatically moves forwards to the next construction position after one-time pile sinking operation is finished, does not occupy the operation time of the floating crane, and can improve the pile sinking efficiency of an offshore photovoltaic foundation.

Description

Technical Field

[0001] The utility model relates to the technical field of offshore photovoltaics, and in particular to a pile sinking positioning device. Background Art

[0002] The offshore photovoltaic foundation generally supports the upper large truss photovoltaic unit through multiple steel pile foundations. In the related art, the installation of the foundation piles is generally assisted by a pile positioning device. The pile positioning device includes a base frame and multiple positioning sleeves arranged on the base frame. The positioning sleeves are used to guide the steel piles to ensure that the position and verticality of the steel piles meet the requirements. However, during the use of the pile positioning device in the related art, a floating crane is required to move the positioning device, which affects the pile driving efficiency. Utility Model Content

[0003] In view of this, the utility model provides a pile driving positioning device to solve the problem of low pile driving efficiency of offshore photovoltaic foundations in the related art.

[0004] The utility model provides a pile sinking positioning device, comprising:

[0005] Scaffolding;

[0006] A plurality of guide flaps are connected to the base frame, and the guide flaps have an open state and a closed state. In the closed state, the guide flaps can be spliced ​​into a guide structure, and the guide structure is provided with a guide channel for accommodating the foundation piles. In the open state, an avoidance hole is formed on the guide structure for the foundation piles to escape from the guide channel;

[0007] The driving mechanism is connected to the base frame and is used for driving the base frame to move.

[0008] Beneficial effects: During the use of the pile driving and positioning device of the utility model, the driving mechanism can drive the base frame of the pile driving and positioning device to the construction position, and make the position of the guide structure correspond to the pile driving position of the foundation pile. The multiple guide petals can be switched to a closed state first to enclose the guide structure. During the construction of the foundation pile, the guide channel on the guide structure can be used to straighten the pile to ensure the position and verticality requirements of the foundation pile. After the pile driving is completed, the multiple guide petals can be switched to an open state so that the foundation pile can pass through the avoidance opening to leave the guide structure, thereby allowing the driving mechanism to drive the base frame to move to the next construction position.

[0009] Therefore, the pile driving positioning device of the embodiment of the utility model does not need to be moved by a floating crane during use. It can move synchronously with the floating crane and move forward autonomously to the next construction position after a pile driving operation is completed. It does not occupy the floating crane operation time and can improve the pile driving efficiency of the offshore photovoltaic foundation.

[0010] In an optional embodiment, the driving mechanism includes:

[0011] A winch is installed on the base frame. The winch is connected to the anchor point through a rope and can tighten or loosen the rope;

[0012] A sliding guide is formed at the bottom of the base frame.

[0013] Beneficial effect: Through such a configuration, the pile positioning mechanism of the embodiment of the present application can be beached on the mud surface, and move on the mud surface through the cooperation of the winch and the sliding guide plate. When the winch tightens the rope, the base frame can slide along the mud surface under the action of the traction force of the rope, and the sliding guide plate can help the pile positioning device to slide on the mud surface. Therefore, the pile positioning mechanism of the embodiment of the present application is easy to move and accurately positioned, which can greatly improve the pile construction efficiency of offshore photovoltaic foundation steel piles.

[0014] In an optional embodiment, the driving mechanism includes at least two groups of winches, which are respectively arranged at the front and rear of the frame. The winch arranged at the front of the frame is connected to the anchor point on the front side of the frame, and the winch arranged at the rear of the frame is connected to the anchor point on the rear side of the frame. Sliding guides are respectively arranged on the front and rear sides of the frame.

[0015] Beneficial effect: When the pile driving and positioning device needs to be driven to move forward, the winch arranged on the front side of the base frame can tighten the rope, the winch arranged on the rear side of the base frame can release the rope, and the sliding guide plate on the front side of the base frame can help the base frame slide forward. When the pile driving and positioning device needs to be driven to move backward, the winch arranged on the rear side of the base frame can tighten the rope, the winch arranged on the front side of the base frame can release the rope, and the sliding guide plate on the rear side of the base frame can help the base frame slide backward.

[0016] In an optional embodiment, the guide flap includes a first guide flap and a second guide flap, one end of the first guide flap and the second guide flap are hinged to the base frame, and the guide structure further includes:

[0017] A first linear drive mechanism, one end of which is hinged to the base frame, and the other end of which is hinged to the middle part of the first guide lobe;

[0018] The second linear drive mechanism has one end hinged to the base frame and the other end hinged to the middle part of the second guide lobe.

[0019] Beneficial effect: When the first linear drive mechanism and the second linear drive mechanism are extended synchronously, the first guide flap and the second guide flap can be closed into a guide structure. When the first linear drive mechanism and the second linear drive mechanism are retracted synchronously, the first guide flap and the second guide flap can move away from each other, thereby forming an escape opening for the foundation pile to pass through between the first guide flap and the second guide flap.

[0020] In an optional implementation, a first linear drive mechanism and a second linear drive mechanism are defined as a drive group, each guide structure includes a plurality of drive groups, and the plurality of drive groups are sequentially arranged along a vertical direction.

[0021] Beneficial effect: Through such an arrangement, multiple drive groups can synchronously perform extension and retraction operations, thereby avoiding the tilting of the guide structure and ensuring that the verticality of the foundation piles meets the requirements after pile sinking.

[0022] In an optional embodiment, the base frame includes a base frame body and a support structure, the support structure is slidably connected to the base frame body, and a plurality of guide petals are hinged to the support structure; the guide structure further includes:

[0023] The third linear drive mechanism is connected to the base frame body, and the power output end is connected to the support structure, and can drive the support structure to slide radially along the guide channel.

[0024] Beneficial effects: By such arrangement, the width of the pedestal body can be set to be smaller than the distance of the pile foundation along the width direction of the pedestal body. During the pile sinking process, when the pile sinking positioning device reaches the construction position, the third linear drive mechanism can extend and drive the guide structure to the pile sinking position of the foundation pile, and then guide and straighten the foundation pile through the guide sleeve to complete the pile sinking operation. After the pile sinking operation is completed, the first linear drive mechanism and the second linear drive mechanism can retract and switch the first guide flap and the second guide flap to the open state, and then the third linear drive mechanism can retract, and at the same time, the foundation pile can pass through the avoidance opening between the first guide flap and the second guide flap to leave the guide channel, so as to allow the drive mechanism to drive the pedestal to move to the next construction position.

[0025] In an optional embodiment, the guide channel includes a guide section and a columnar section arranged in sequence from top to bottom, the guide section is arranged with a reduced diameter from top to bottom, and the columnar section is transitionally matched with the foundation pile.

[0026] Beneficial effect: Through such an arrangement, the guide section can guide the foundation pile to guide the foundation pile into the columnar section, and the columnar section can straighten the foundation pile to ensure that the verticality of the foundation pile meets the requirements after pile sinking.

[0027] In an optional embodiment, the pile driving and positioning device further includes an anti-sinking plate arranged at the bottom of the base frame.

[0028] Beneficial effect: The anti-sinking plate can provide partial buoyancy to reduce the pressure and friction between the pile-sinking positioning device and the mud surface, thereby ensuring that the pile-sinking positioning device can move on the mud surface.

[0029] In an optional embodiment, the pile positioning device further includes:

[0030] A water storage tank is formed on the base frame;

[0031] The ballast water pump is connected to the water storage tank and is used to supply water or drain water from the water storage tank.

[0032] Beneficial effects: The ballast water pump is connected to the water storage tank and is used to supply water or drain water to the water storage tank. When pile driving construction is carried out, the ballast water pump can pressurize water into the water storage tank to ensure the stability of the pile driving positioning device sitting on the mud surface. When the driving mechanism drives the pile driving positioning device to move, the ballast water pump can discharge the water in the water storage tank to the outside, thereby increasing the buoyancy of the pile driving positioning device, reducing the contact pressure between the pile driving positioning device and the mud surface, and thus reducing the resistance of the pile driving positioning device during movement.

[0033] In an optional embodiment, the guide structure is divided into two groups, and the two groups of guide structures are respectively arranged on both sides of the base frame.

[0034] Beneficial effect: Through such an arrangement, the pile driving and positioning device of the embodiment of the present application can simultaneously guide and position four foundation piles of an offshore photovoltaic foundation. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0036] Figure 1 A side view of a pile positioning device according to an embodiment of the utility model;

[0037] Figure 2 for Figure 1 A top view of the pile positioning device shown;

[0038] Figure 3 for Figure 1 A front view of the pile positioning device shown;

[0039] Figure 4 This is a top view of a pile driving and positioning device according to an embodiment of the utility model in a use state, in which the third linear drive mechanism is in an extended state;

[0040] Figure 5 This is a top view of a pile driving and positioning device according to an embodiment of the utility model in a use state, in which the third linear drive mechanism is in a retracted state;

[0041] Figure 6 for Figure 4A cross-sectional view of the pile positioning device at line AA shown in FIG.

[0042] Figure 7 for Figure 5 A cross-sectional view of the pile positioning device at line BB shown in ;

[0043] Figure 8 A top view of the pile positioning device according to an embodiment of the utility model in use;

[0044] Fig. 9 It is a photovoltaic foundation.

[0045] Description of reference numerals:

[0046] 1. Base frame; 101. Base frame body; 102. Support structure; 103. Anti-sinking plate;

[0047] 2. Guide structure; 201. Guide flap; 202. First linear drive mechanism; 203. Second linear drive mechanism; 204. Third linear drive mechanism; 205. Guide channel; 2051. Guide segment; 2052. Column segment;

[0048] 3. Driving mechanism; 301. Winch; 302. Sliding guide plate; 303. Cable guide roller;

[0049] 4. Foundation piles; 5. Photovoltaic foundation; 6. Anchor point; 7. Floating crane. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0051] At present, large-scale construction of offshore photovoltaics is all in the tidal flats. There is no large-scale construction in the sea area with a water depth greater than 5m, and there are only a few empirical verification projects. The main problem is that the marine environment conditions in deep water areas far away from the tidal flats are harsh, there is no special construction equipment, offshore construction is difficult and inefficient, resulting in high construction costs and difficulty in forming large-scale construction conditions. According to years of research and experiments, such as Fig. 9As shown in the figure, the current mainstream offshore photovoltaic construction scheme is to use 4 steel pile foundations in the lower part to support the upper large truss photovoltaic unit. This scheme has a small number of pile foundations, and the large truss photovoltaic unit can be assembled on land at the dock, which can greatly reduce the offshore construction tasks and improve the construction efficiency of offshore photovoltaic projects. However, this scheme has high requirements for the position accuracy and verticality of the foundation steel piles. How to efficiently construct under the conditions of meeting the position and verticality requirements is a key issue.

[0052] Combine the following Figures 1 to 9 , describing an embodiment of the utility model.

[0053] According to an embodiment of the utility model, a pile sinking positioning device is provided, such as Figure 1 and Figure 2 As shown, it includes a base frame 1, a plurality of guide flaps 201 and a driving mechanism 3. Among them, the plurality of guide flaps 201 are connected to the base frame 1, and the guide flaps 201 have an open state and a closed state. In the closed state, the guide flaps 201 can be formed into a guide structure 2, and the guide structure 2 is provided with a guide channel 205 for accommodating the foundation pile 4. In the open state, the guide structure 2 can form an avoidance hole for the foundation pile 4 to escape from the guide channel 205. The driving mechanism 3 is connected to the base frame 1, and is used to drive the base frame 1 to move.

[0054] During use of the pile driving and positioning device of the utility model, the driving mechanism 3 can drive the base frame 1 of the pile driving and positioning device to the construction position, and make the position of the guide structure 2 correspond to the pile driving position of the foundation pile 4. The multiple guide petals 201 can be switched to a closed state first to enclose the guide structure 2. When the foundation pile 4 is constructed, the guide channel 205 on the guide structure 2 can be used to straighten the pile to ensure the position and verticality requirements of the foundation pile 4. After the pile driving is completed, the multiple guide petals 201 can be switched to an open state so that the foundation pile 4 can pass through the avoidance opening to leave the guide structure 2, thereby allowing the driving mechanism 3 to drive the base frame 1 to move to the next construction position.

[0055] Therefore, the pile driving positioning device of the embodiment of the utility model does not need to be moved by the floating crane 7 during use. It can move synchronously with the floating crane 7 and autonomously move forward to the next construction position after a pile driving operation is completed. It does not occupy the floating crane operation time and can improve the pile driving efficiency of the offshore photovoltaic foundation 5.

[0056] The base frame 1 is a positioning frame, which can be used by construction workers to work on it, so that the workers can perform positioning measurement and other operations on the equipment deck.

[0057] In one embodiment, Figure 2 and Figure 3As shown, the driving mechanism 3 includes a winch 301 and a sliding guide 302. The winch 301 is arranged on the base frame 1, and the winch 301 is connected to the anchor point 6 through a rope, and can tighten or loosen the rope. The sliding guide 302 is formed at the bottom of the base frame 1. Through such an arrangement, the pile positioning mechanism of the embodiment of the present application can be beached on the mud surface, and move on the mud surface through the cooperation of the winch 301 and the sliding guide 302. When the winch 301 tightens the rope, the base frame 1 can slide along the mud surface under the action of the traction force of the rope, and the sliding guide 302 can help the pile positioning device to slide on the mud surface. Therefore, the pile positioning mechanism of the embodiment of the present application is easy to move and accurately positioned, which can greatly improve the pile construction efficiency of the steel piles of the offshore photovoltaic foundation 5.

[0058] Preferably, in one embodiment, a cable guide roller 303 is further provided on the front side of the base frame 1, and the rope passes through the cable guide roller 303 from the winch 301 and is connected to the anchor pile.

[0059] In one embodiment, the driving mechanism 3 includes at least two groups of winches 301, and the two groups of winches 301 are respectively arranged at the front and rear of the base frame 1. The winch 301 arranged at the front of the base frame 1 is connected to the anchor point 6 on the front side of the base frame 1, and the winch 301 arranged at the rear of the base frame 1 is connected to the anchor point 6 on the rear side of the base frame 1. The front and rear sides of the base frame 1 are respectively provided with sliding guide plates 302.

[0060] When the pile driving and positioning device needs to be driven to move forward, the winch 301 arranged on the front side of the base frame 1 can tighten the rope, the winch 301 arranged on the rear side of the base frame 1 can release the rope, and the sliding guide 302 on the front side of the base frame 1 can help the base frame 1 slide forward. When the pile driving and positioning device needs to be driven to move backward, the winch 301 arranged on the rear side of the base frame 1 can tighten the rope, the winch 301 arranged on the front side of the base frame 1 can release the rope, and the sliding guide 302 on the rear side of the base frame 1 can help the base frame 1 slide backward.

[0061] In one embodiment, the guide flap 201 includes a first guide flap and a second guide flap, one end of the first guide flap and the second guide flap are hinged to the base frame 1, and the guide structure 2 also includes a first linear drive mechanism 202 and a second linear drive mechanism 203. Among them, one end of the first linear drive mechanism 202 is hinged to the base frame 1, and the other end is hinged to the middle of the first guide flap. One end of the second linear drive mechanism 203 is hinged to, and the other end is hinged to the middle of the second guide flap.

[0062] By setting it up like this, Figures 4 to 7As shown, when the first linear drive mechanism 202 and the second linear drive mechanism 203 are extended synchronously, the first guide flap and the second guide flap can be closed to form a guide structure 2. When the first linear drive mechanism 202 and the second linear drive mechanism 203 are retracted synchronously, the first guide flap and the second guide flap can move away from each other, thereby forming an escape opening between the first guide flap and the second guide flap for the foundation pile 4 to pass through.

[0063] As a convertible embodiment, the first guide flap is connected to the main body, the second guide flap is slidably connected to the first guide flap, the guide structure 2 also includes a rotation source connected to the first guide flap, the power output end of the rotation source is connected to the second guide flap, and can drive the second guide flap to rotate along the radial direction of the guide channel 205. When the second guide flap moves to be arranged opposite to the first guide flap, the first guide flap and the second guide flap can form a guide channel 205 between them. When the second guide flap moves to fit the inner wall of the first guide flap, the opposite sides of the first guide flap and the second guide flap can form an avoidance. Among them, the rotation source can be selected as a device capable of outputting rotation, such as a motor, an engine, a hydraulic motor, or a combination of one of them and a reducer.

[0064] In one embodiment, a first linear drive mechanism 202 and a second linear drive mechanism 203 are defined as a drive group, and each guide structure 2 includes multiple drive groups, and the multiple drive groups are arranged in sequence along the vertical direction. Through such an arrangement, multiple drive groups can synchronously perform extension and retraction operations, thereby preventing the guide structure 2 from tilting, so as to ensure that the verticality of the foundation pile 4 after pile sinking meets the requirements.

[0065] In one embodiment, the base frame 1 includes a base frame body 101 and a support structure 102. The support structure 102 is slidably connected to the base frame body 101, and a plurality of guide petals 201 are hinged to the support structure 102; the guide structure 2 also includes a third linear drive mechanism 204. The third linear drive mechanism 204 is connected to the base frame body 101, and the power output end is connected to the support structure 102, and can drive the support structure 102 to slide radially along the guide channel 205.

[0066] By setting it up like this, Figure 8As shown, the width of the base frame body 101 can be set to be smaller than the distance of the pile foundation along the width direction of the base frame body 101. During the pile sinking process, when the pile sinking positioning device reaches the construction position, the third linear drive mechanism 204 can extend and drive the guide structure 2 to the pile sinking position of the foundation pile 4, and then guide and straighten the foundation pile 4 through the guide sleeve to complete the pile sinking operation. After the pile sinking operation is completed, the first linear drive mechanism 202 and the second linear drive mechanism 203 can retract and switch the first guide flap and the second guide flap to the open state, and then the third linear drive mechanism 204 can retract, and at the same time, the foundation pile 4 can pass through the avoidance between the first guide flap and the second guide flap to escape from the guide channel 205. To allow the drive mechanism 3 to drive the base frame 1 to move to the next construction position. Among them, the first linear drive mechanism 3, the second linear drive mechanism 3 and the third linear drive mechanism 3 are preferably, but not limited to, a combination of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder or a motor and a gear rack.

[0067] In one embodiment, the guide channel 205 includes a guide section 2051 and a columnar section 2052 arranged in sequence from top to bottom, the guide section 2051 is arranged with a reduced diameter from top to bottom, and the columnar section 2052 can transitionally cooperate with the foundation pile 4. Through such an arrangement, the guide section 2051 can guide the foundation pile 4 to guide the foundation pile 4 into the columnar section 2052, and the columnar section 2052 can straighten the foundation pile 4 to ensure that the verticality of the foundation pile 4 meets the requirements after the pile is sunk.

[0068] In one embodiment, the pile driving and positioning device further comprises an anti-sinking plate 103 disposed at the bottom of the base frame 1. The anti-sinking plate 103 can provide partial buoyancy to reduce the pressure and friction between the pile driving and positioning device and the mud surface, thereby ensuring that the pile driving and positioning device can move on the mud surface. Preferably, in the embodiment of the present application, the anti-sinking plate 103 covers the bottom of the entire base frame body 101, which can ensure that sufficient buoyancy is provided to the pile driving and positioning device.

[0069] In one embodiment, the pile driving positioning device further includes a water storage tank and a ballast water pump. The water storage tank is formed on the base frame body 101. The ballast water pump is connected to the water storage tank and is used to supply water or drain water to the water storage tank. When pile driving construction is carried out, the ballast water pump can pressurize water into the water storage tank to ensure the stability of the pile driving positioning device sitting on the mud surface. When the driving mechanism 3 drives the pile driving positioning device to move, the ballast water pump can discharge the water in the water storage tank to the outside, thereby increasing the buoyancy of the pile driving positioning device, reducing the contact pressure between the pile driving positioning device and the mud surface, and thus reducing the resistance during the movement of the pile driving positioning device.

[0070] In one embodiment, there are two groups of guide structures 2, and the two groups of guide structures 2 are respectively arranged on both sides of the base frame body 101. Through such an arrangement, during the pile driving construction process, the pile driving positioning device itself can be located in the middle of the two rows of foundation piles 4, and simultaneously position and guide the foundation piles 4 on both sides.

[0071] Exemplarily, in one embodiment, each group of guide structures 2 includes two guide structures 2, and the spacing between the two guide structures 2 is the same as the spacing between two adjacent foundation piles 4. Through such an arrangement, the pile driving positioning device of the embodiment of the present application can simultaneously guide and position four foundation piles 4 of an offshore photovoltaic foundation 5.

[0072] To sum up, the pile driving positioning device of the embodiment of the utility model does not need to be moved by the floating crane 7 during use, can move synchronously with the floating crane 7, and can autonomously move forward to the next construction position after a pile driving operation is completed, does not occupy the floating crane operation time, and can improve the pile driving efficiency of the offshore photovoltaic foundation 5.

[0073] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A pile positioning device, characterized in that: include: Base frame (1); A plurality of guide flaps (201) are connected to the base frame (1), the guide flaps (201) having an open state and a closed state. In the closed state, the guide flaps (201) can be spliced ​​into a guide structure (2), the guide structure (2) being provided with a guide channel (205) for accommodating a foundation pile (4). In the open state, an escape hole is formed on the guide structure (2) for allowing the foundation pile (4) to escape from the guide channel (205); A driving mechanism (3) is connected to the base frame (1) and is used to drive the base frame (1) to move.

2. The pile positioning device according to claim 1, characterized in that: The driving mechanism (3) comprises: A winch (301) is arranged on the base frame (1), and the winch (301) is connected to the anchor point (6) via a rope and is capable of tightening or loosening the rope; A sliding guide plate (302) is formed at the bottom of the base frame (1).

3. The pile positioning device according to claim 2, characterized in that: The driving mechanism (3) comprises at least two groups of winches (301), and the two groups of winches (301) are respectively arranged at the front and rear of the base frame (1). The winch (301) arranged at the front of the base frame (1) is connected to the anchor point (6) on the front side of the base frame (1), and the winch (301) arranged at the rear of the base frame (1) is connected to the anchor point (6) on the rear side of the base frame (1). The sliding guide plates (302) are respectively arranged at the front and rear sides of the base frame (1).

4. The pile positioning device according to any one of claims 1 to 3, characterized in that: The guide flap (201) comprises a first guide flap and a second guide flap, one end of the first guide flap and the second guide flap are hinged to the base frame (1), and the guide structure (2) further comprises: A first linear drive mechanism (202), one end of which is hinged to the base frame (1), and the other end of which is hinged to the middle part of the first guide lobe; A second linear drive mechanism (203) has one end hinged to the base frame (1) and the other end hinged to the middle of the second guide lobe.

5. The pile positioning device according to claim 4, characterized in that: A first linear drive mechanism (202) and a second linear drive mechanism (203) are defined as a drive group, and each of the guide structures (2) comprises a plurality of drive groups, and the plurality of drive groups are arranged in sequence along a vertical direction.

6. The pile positioning device according to claim 4, characterized in that: The base frame (1) comprises a base frame body (101) and a support structure (102), wherein the support structure (102) is slidably connected to the base frame body (101), and a plurality of guide flaps (201) are hingedly connected to the support structure (102); the guide structure (2) further comprises: The third linear drive mechanism (204) is connected to the base frame body (101), and the power output end is connected to the support structure (102), and can drive the support structure (102) to slide radially along the guide channel (205).

7. The pile positioning device according to any one of claims 1 to 3, characterized in that: The guide channel (205) comprises a guide section (2051) and a columnar section (2052) which are arranged in sequence from top to bottom. The guide section (2051) is arranged with a reduced diameter from top to bottom, and the columnar section (2052) is transitionally matched with the foundation pile (4).

8. The pile positioning device according to any one of claims 1 to 3, characterized in that: It also includes an anti-sinking plate (103) arranged at the bottom of the base frame (1).

9. The pile positioning device according to any one of claims 1 to 3, characterized in that: Also includes: A water storage tank formed on the base frame (1); A ballast water pump is connected to the water storage tank and is used to supply water to or drain water from the water storage tank.

10. The pile positioning device according to any one of claims 1 to 3, characterized in that: The guide structures (2) are divided into two groups, and the two groups of guide structures (2) are respectively arranged on both sides of the base frame (1).

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