Integral laying-down device for offshore wind power single pile sleeve cage

Abstract

The invention discloses an offshore wind power single pile sleeve cage integral putting-down device which comprises a top hoisting assembly, an overturning assembly and a bottom supporting assembly and further comprises a locking assembly used for locking a sleeve cage. The bearing plate is used for containing the sleeve cage, the locking clamping jaw is used for locking the sleeve cage, the driver is used for driving the locking clamping jaw to change the working state, and when the pressure applied by the sleeve cage and borne by the bearing plate is larger than a set threshold value, the locking clamping jaw is driven to rotate by the driver. The driver controls the locking clamping jaw to be switched to a second working state so as to lock the cage; and when the pressure applied by the sleeve cage and borne by the bearing plate is smaller than a set threshold value, the driver controls the locking clamping jaw to be switched to the first working state so as to loosen the sleeve cage. By means of the device, the cage can be held tightly so as to be prevented from generating large displacement in the putting-down process, and therefore accurate putting-down of the cage is achieved.

Description

Technical Field

[0001] This invention relates to the field of tripping device technology, and in particular to an integrated tripping device for offshore wind turbine monopile cages. Background Technology

[0002] Current technical situation: ① Simple support-assisted lowering: The bottom ring beam of the cage is supported by square timber for lowering, resulting in poor stability and a risk of overturning, even causing structural deformation. ② Excessive reliance on lifting equipment for turning: The entire lowering process requires the coordinated operation of crawler cranes and truck cranes, placing high demands on crane operation and synchronization. ③ Due to site limitations, the rated lifting capacity of truck cranes within the operating radius is only 60t. If local imbalance occurs, the truck crane load may exceed the rated lifting capacity requirement, causing the equipment to tip over. Disadvantages / deficiencies of existing technology: ① Lack of guaranteed accuracy: The lack of an active attitude control system means that the lowering path and final angle rely on manual experience and assistance, making it difficult to achieve precise lowering of the cage. ② Low efficiency: The process is cumbersome, requiring multiple shifts of the cage. ③ High cost: Large crawler cranes occupy a long time, have high equipment costs, and are prone to component damage due to improper operation, leading to additional costs. ④ High uncontrollable risks: There are many uncontrollable factors in equipment, personnel, and environment throughout the process, which is one of the main technical bottlenecks and risk points in the offshore wind power manufacturing process. This application aims to provide an integrated offshore wind turbine monopile cage-type tripping device that can overcome the above-mentioned defects. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide an integrated knocking-down device for offshore wind power monopile cages.

[0004] The objective of this invention is achieved through the following technical solution: An integrated lobe-type device for offshore wind turbine monopile cages, comprising a top lifting assembly, a tilting assembly, and a bottom support assembly. The bottom support assembly is used to place the cage, the tilting assembly is used to tilt the cage from a vertical state to a horizontal state, and the top lifting assembly is used to provide an upward vertical pulling force during the tilting process. It also includes a locking assembly for locking the cage, configured with a load-bearing plate for placing the cage, locking claws for locking the cage, and a transmission mechanism for driving the locking claws to change their working state. When the pressure exerted on the load-bearing plate by the cage exceeds a set threshold, the transmission mechanism controls the locking claws to switch to a second working state to lock the cage; when the pressure exerted on the load-bearing plate by the cage is less than the set threshold, the transmission mechanism controls the locking claws to switch to a first working state to release the cage.

[0005] Preferably, the load-bearing plate is provided with a placement groove, and a compression spring, a pressure plate and a switch are provided in the placement groove. When the cage is placed on the load-bearing plate and comes into contact with the pressure plate, the pressure plate can slide along the placement groove to compress the compression spring. When the change in length of the compression spring is greater than a set threshold, the locking claw switches to the second working state, and when the change in length of the compression spring is less than the set threshold, the locking claw switches to the first working state.

[0006] Preferably, the flipping assembly includes a bearing housing, a flipping shaft, and a support plate. The bearing housing is disposed on the cast-in-place foundation, and the two ends of the flipping shaft are respectively connected to different bearing housings so that the flipping shaft can rotate around its own axis. The support plate is connected to the flipping shaft.

[0007] Preferably, the bottom support assembly includes a foundation platform, a fixed bracket, and a connecting plate. The connecting plate is connected to the support plate. The fixed bracket is defined by an arc shape. A pressure sensor is provided on the fixed bracket to collect the pressure applied to it by the cage. When the pressure value collected by the pressure sensor is abnormal, an alarm can be triggered.

[0008] Preferably, the pressure sensor defines a first pressure acquisition point, a second pressure acquisition point, a third pressure acquisition point, and a fourth pressure acquisition point. The first and second pressure acquisition points are located on the first side of the fixed bracket, and the third and fourth pressure acquisition points are located on the second side of the fixed bracket. The first and third pressure acquisition points are located at the upper part of the fixed bracket, and the second and fourth pressure acquisition points are located at the bottom of the fixed bracket. When the pressure value of at least one of the first, second, third, and fourth pressure acquisition points exceeds a set threshold, an alarm is triggered to sound an audible and visual alarm.

[0009] Preferably, the fixed bracket consists of at least two support plates, the shape of which is defined by an arc. A plurality of hydraulic telescopic rods are provided on the connecting plate, each of which is hinged to the end of the support plate in a one-to-one correspondence manner. The hydraulic telescopic rods are communicatively connected to the controller, enabling the controller to dynamically adjust the extension and retraction of the hydraulic telescopic rods.

[0010] Preferably, when the pressure value at any one of the first pressure acquisition point, the second pressure acquisition point, the third pressure acquisition point, and the fourth pressure acquisition point is greater than a set threshold, the controller controls the hydraulic telescopic rod corresponding to the corresponding pressure acquisition point to reduce the telescopic amount.

[0011] Preferably, the foundation platform is capable of horizontal movement to increase or decrease the distance between it and the fixed bracket, wherein, when the foundation platform moves toward the fixed bracket, it can push the load-bearing plate to rotate.

[0012] Preferably, the load-bearing plate is provided with a support beam and a number of ball bearings. When the load-bearing plate is in a horizontal state, the support beam contacts the ground so that the ball bearings are suspended in the air. When the foundation platform moves, it can abut against the ball bearings.

[0013] The present invention has the following advantages: (1) The bottom of the cage is combined with the arc bracket. When it is overturned, the direction of rotation is achieved through a 110mm diameter rotating shaft. This means that the bottom of the cage is always in contact with the original ground, thus avoiding structural instability and overturning risks during the overturning process. The arc structure of the overturning device is in close contact with the bottom ring beam of the cage, which increases the contact area between the ring beam and the bracket. This controls the impact of the ring beam on the overall structural dimensions during the overturning process and also reduces the safety risks during the operation. Through the connection transition of the overturning device, the ring beam is indirectly connected to the original ground, avoiding sudden changes in load and overturning during the overturning process assisted by the crawler crane.

[0014] (2) Solving efficiency bottlenecks: The bottom ring beam is fixed by brackets and the lifting points are controlled by crawler cranes throughout the operation, which significantly reduces the time for cage overturning. The time for a single overturning operation can be shortened from 8 hours in the traditional mode to 2 hours, and the overall construction efficiency is improved by more than 400%.

[0015] (3) Solving cost pain points: By using tooling and process-oriented operations, the amount of hoisting equipment used is reduced, resulting in significant overall economic benefits.

[0016] (4) While reducing the amount of equipment used, it also reduces the area occupied on the site. It significantly reduces the usage time of crawler cranes, avoids unnecessary rework and maintenance costs caused by construction errors or accidents, and can be reused for multiple similar projects, making it highly valuable.

[0017] (5) The entire tipping device adopts a steel-concrete structure, which increases the overall structural weight of the device on the one hand, and improves its structural toughness on the other. Attached Figure Description

[0018] Figure 1 The front view of the integrated tilting device for offshore wind turbine monopile cages; Figure 2 This is a front view of an integrated offshore wind turbine monopile cage lowering device according to another embodiment; Figure 3 This is a schematic diagram of a fixed bracket floating configuration in another embodiment; Figure 4 This is a schematic diagram showing the installation method of the pressure plate; Figure 5 This is a schematic diagram of the locking assembly in another embodiment; In the diagram, 1-top hoisting assembly, 2-tilting assembly, 3-bottom support assembly, 1a-crawler crane, 1b-lifting frame, 2a-bearing seat, 2b-tilting shaft, 2c-support plate, 3a-foundation platform, 3b-fixed bracket, 3c-connecting plate, 4-locking assembly, 4a-load-bearing plate, 4b-transmission device, 4c-locking claw, 4b-1-pressure plate, 4b-2-switch, 4b-3-drive motor, 5-placement slot, 6-compression spring, 7-first electrode post, 8-second electrode post, 9-pressure sensor, 9a-first pressure acquisition point, 9b-second pressure acquisition point, 9c-third pressure acquisition point, 9d-fourth pressure acquisition point, 10-controller, 11-alarm, 1b-1-first pull rope assembly, 1b-2-second pull rope assembly, 12-support beam, 13-ball bearing, 14-support plate, 15-hydraulic telescopic rod. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description: Example 1 like Figure 1As shown, this application provides an integrated lowering device for a single pile cage in offshore wind power, including a top lifting assembly 1, a tilting assembly 2, and a bottom support assembly 3. The top lifting assembly 1 suspends the cage to provide an upward vertical tensile force during lowering, preventing excessive swaying. The bottom support assembly 3 holds the cage and provides support. The tilting assembly 2 is coupled to the bottom support assembly 3 and lowers the cage from a vertical to a horizontal position. Specifically, the top lifting assembly 1 includes a crawler crane 1a and a lifting frame 1b. The lifting frame 1b can be rectangular in shape and can be detachably equipped with several lifting points, each of which can be connected to different positions on the cage via connecting chains. The tilting assembly 2 includes a bearing seat 2a, a tilting shaft 2b, and a support plate 2c. The bearing seat 2a can be fixed to the cast-in-place foundation with anchor bolts or connected to the cast-in-place concrete structure with pre-embedded bolts and steel plates to ensure overall stability. The two ends of the tilting shaft 2b are connected to different bearing seats 2a, allowing the tilting shaft 2b to rotate around its own axis. Support plates 2c are provided at both ends of the tilting shaft 2b. The bottom support assembly 3 includes a foundation platform 3a, a fixed bracket 3b, and a connecting plate 3c. The connecting plate 3c is connected to the support plate 2c. The shape of the fixed bracket 3b is defined by an arc to match the contour of the cage, preventing lateral sliding of the cage. The fixed bracket is made of steel, and its arc structure makes close contact with the bottom ring beam of the cage, increasing the contact area between the ring beam and the bracket. The fixed bracket 3b can be connected to the connecting plate 3c by bolts or other connecting parts. The cross-sectional shape of the foundation platform 3a can be defined by a right-angled triangle, allowing the bottom of the cage to abut against the foundation platform 3a after it is placed on the fixed bracket 3b.

[0020] The working process is as follows: Use a crawler crane to start the cage and move it directly above the lowering device. Slowly lower it until the bottom ring beam is in full contact with the fixed bracket. Install bolts to fix it. Under the premise of controlling the force value of the crawler crane to be less than the weight of the cage itself, slowly move the crawler crane to control the position of the crawler crane lifting point until the cage is overturned.

[0021] Example 2 This embodiment is a further supplement to Embodiment 1, and repeated content will not be described again.

[0022] Preferred, such as Figures 2 to 4As shown, the foundation platform 3a can be defined by a cast-in-place concrete ground surface, with its surface parallel to the ground. The integrated dropping device for offshore wind turbine monopile cages also includes a locking assembly 4, which is used to lock and fix the cage after it is placed on the tilting assembly 2, preventing excessive displacement. Specifically, the locking assembly 4 includes a load-bearing plate 4a, a transmission device 4c, and locking claws 4c. The load-bearing plate 4a is set on the fixed bracket 3b, the cross-sectional shape of which can be defined by an arc, and the shape of the load-bearing plate 4a can be defined by a circle. When the cage is placed vertically, its bottom can abut against the load-bearing plate 4a, and its circumferential direction can abut against the fixed bracket 3b. The locking claws 4c are set on the fixed bracket 3b and have two working states: the first working state is the unfolded state, and the second working state is the locked state. In the locked state, they can hold the cage tightly to prevent it from undergoing large displacement during the dropping process. The actuator 4b is coupled to the load-bearing plate 4a and the locking claw 4c. It operates based on changes in the pressure applied to the load-bearing plate 4a by the cage, thereby switching the locking claw 4d between a first working state and a second working state. This configuration allows for adjustment of the locking claw's working state based on the cage's own weight, resulting in simple and easy-to-implement control logic.

[0023] Preferably, the transmission device 4b includes a pressure plate 4b-1, a switch 4b-2, and a drive motor 4b-3. The pressure plate 4b-1 can be mounted on a load-bearing plate 4a. For example, the load-bearing plate 4a has a placement groove 5, in which a compression spring 6 is placed. The pressure plate 4b-1 is positioned in the placement groove 5 and abuts against the compression spring 6. The switch 4b-2 can be positioned in the placement groove 5. When the pressure plate 4b-1 slides in the placement groove 5 to abut against the switch 4b-2, the state of the switch 4b-2 can be switched. The drive motor 4b-3 is mounted on a fixed bracket 3b. The switching of the state of the switch 4b-2 controls the opening and stopping of the drive motor 4b-3. The locking claw 4c can be hinged to the fixed bracket 3b. The locking claw 4c can switch between a first working state and a second working state by rotating around its hinge point. The end of the locking claw 4c can be equipped with a gear. After the drive shaft of the drive motor 4b-3 meshes with the gear, the locking claw 4c can be rotated by driving the gear to rotate.

[0024] Preferably, the switch 4b-2 can be composed of a first electrode post 7 and a second electrode post 8. The first electrode post 7 is disposed on the pressure plate 4b-1, and the second electrode post 8 is disposed on the inner wall of the placement groove 5. The first electrode post 7 and the second electrode post 8 can be elongated, so that when the contact length of the first electrode post 7 and the second electrode post 8 is within a set range, the drive motor 4b-3 can be energized. For example, the set range can be set as follows: Assuming the mass of the cage is M, according to Hooke's Law F=KX, the upper limit of the set range is set as X=Mg / K. Assuming the angle between the cage and the ground during the lowering process is α, and the force exerted by the cage on the pressure plate 4b-1 is Mg·sinα, the lower limit of the set range is determined to be Mg·sinα / K according to Hooke's Law. Through the above setting method, it can be set that when the angle α between the cage and the ground is less than, for example, 5°, the first electrode post and the second electrode post separate, thereby realizing the automatic release of the locking claw 4c. A coil spring is installed on the rotating shaft of the locking claw 4c. When the drive motor 4b-3 is powered on, the coil spring can store elastic potential energy. When the drive motor 4b-3 is powered off, the locking claw 4c can automatically return to its initial position under the action of the elastic potential energy of the coil spring.

[0025] Preferably, the fixed bracket 3b is also equipped with several pressure sensors 9. These pressure sensors 9 are used to collect the pressure exerted by the cage on the fixed bracket 3b, thereby determining whether the cage is eccentric and at risk of overturning. There can be four locking claws 4c, positioned corresponding to the pressure sensors at the four corners of the fixed bracket. Each locking claw is equipped with a drive motor 4b-3. Specifically, the number of pressure sensors 9 can be four to define a first pressure sampling point 9a, a second pressure sampling point 9b, a third pressure sampling point 9c, and a fourth pressure sampling point 9d. The first and second pressure sampling points 9a and 9b can be located on the first side of the fixed bracket 3b, and the third and fourth pressure sampling points 9c and 9d can be located on the second side of the fixed bracket 3b. The first and third pressure sampling points 9a and 9c can be located on the upper part of the fixed bracket 3b, and the second and fourth pressure sampling points 9b and 9d can be located on the bottom of the fixed bracket 3b.

[0026] Preferably, the offshore wind turbine monopile cage integrated tripping device further includes a controller 10 and an alarm 11. The controller 10 is communicatively coupled to the drive motor 4b-3 and the pressure sensor 9. The controller 10 can receive and process the data collected by the pressure sensor 9 and generate a control command for controlling the alarm 11 to sound an alarm based on the calculation results. Specifically, when the pressure value of at least one of the first pressure acquisition point 9a, the second pressure acquisition point 9b, the third pressure acquisition point 9c, and the fourth pressure acquisition point 9d exceeds a set threshold, the controller 10 triggers the alarm 11 to sound an alarm in the form of sound and light. The controller 10 and the alarm 11 can be installed on the connecting plate 3c as needed.

[0027] Preferably, the lifting frame 1b is equipped with a first pull rope assembly 1b-1 and a second pull rope assembly 1b-2. The first pull rope assembly 1b-1 is connected to the first end of the cage, and the second pull rope assembly 1b-2 is connected to the second end of the cage. For example, in a horizontal state, the first end can be the left end of the cage, and the second end can be the right end of the cage. The first pull rope assembly 1b-1 is under tension throughout the entire process of lowering the cage, providing tension to the cage. When the angle between the cage and the ground is less than a set value, such as 3°, the second pull rope assembly 1b-2 begins to provide tension to the cage, allowing the cage to be lifted as a whole and separated from the fixed bracket 3b. With the above configuration, the cage can be automatically lifted and separated from the fixed bracket when it is close to being lowered, and then the horizontal cage can be transported to the designated position by a crawler crane. The whole process is convenient, fast, and efficient.

[0028] Preferably, the base platform 3a can move horizontally to increase or decrease the distance between it and the tilting component. Specifically, a slide rail can be provided on the ground, and the bottom of the base platform 3a is connected to the slide rail, thereby realizing the horizontal movement of the base platform 3a. A drive device such as a push rod motor connected to the base platform 3a can be provided on the ground, and the horizontal movement direction of the base platform can be adjusted as needed through the drive device. A support beam 12 and several ball bearings 13 are provided on the bottom of the load-bearing plate 4a. There are two support beams 12, which are spaced apart from each other, and the distance between them is greater than the width of the base platform. Several ball bearings 13 are provided in the area between the two support beams 12. When the load-bearing plate 4a is in a horizontal state, the support beams 12 are in contact with the ground, and the ball bearings are in a suspended state. When the base platform 3a moves toward the load-bearing plate 4a, the ball bearings 13 are in contact with the inclined surface of the base platform, so that the load-bearing plate 4a can rotate. A resetter connected to the tilting shaft is provided, so that the load-bearing plate can return from a horizontal state to an inclined state in contact with the base platform. For example, the resetter can be a coil spring, achieving reset through the energy stored in the spring. Alternatively, it can be a hydraulic damper, achieving reset through hydraulic energy storage. This configuration provides a limit for the load-bearing plate 4a, preventing swaying that occurs when the cage is suspended entirely by the top hoisting assembly 1.

[0029] Example 3 This embodiment is a further supplement to Embodiments 1 and 2, and repeated content will not be described again. The difference between this embodiment and the previous embodiments is that: in this embodiment, the fixed bracket 3b is not provided with a load-bearing plate 4a, and the load-bearing plate 4a is provided on the connecting plate 3c in a manner perpendicular to the connecting plate 3c.

[0030] Preferred, such as Figure 5 As shown, the fixed bracket 3b can be composed of at least two arc-shaped support plates 14. The support plates 14 can be connected to the connecting plate 3c via hydraulic telescopic rods 15. For example, hinge holes can be provided at both ends of the support plates 14, allowing the hydraulic telescopic rods 15 to be hinged to the connecting plate. Each hydraulic telescopic rod 15 can be communicatively connected to the controller 10. The controller 10 can collect the extension and retraction of the hydraulic telescopic rods 15 and control the extension or retraction of the hydraulic telescopic rods 15 to dynamically adjust the extension and retraction. For example, when the pressure value of any one of the first pressure acquisition point 9a, the second pressure acquisition point 9b, the third pressure acquisition point 9c, and the fourth pressure acquisition point 9d is greater than a set threshold, the hydraulic telescopic rod corresponding to the corresponding pressure acquisition point is controlled to shorten. With the floating setting, even when the cage is detected to be tilted, the extension and retraction of the hydraulic telescopic rods can be adjusted to prevent the cage from overturning due to excessive tilting.

[0031] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An integrated lowering device for a single pile cage in offshore wind power, comprising a top lifting assembly (1), a tilting assembly (2), and a bottom support assembly (3), wherein the bottom support assembly (3) is used to place the cage, the tilting assembly (2) is used to lower the cage from a vertical state to a horizontal state, and the top lifting assembly (1) is used to provide an upward vertical pulling force to the cage during the lowering process, characterized in that, It also includes a locking assembly (4) for locking the cage, configured to have a load-bearing plate (4a) for placing the cage, a locking claw (4c) for locking the cage, and a transmission (4b) for driving the locking claw to change its working state, wherein... When the pressure exerted on the load-bearing plate (4a) by the cage exceeds a set threshold, the actuator (4b) controls the locking claw (4c) to switch to a second working state to lock the cage. When the pressure exerted on the load-bearing plate (4a) by the cage is less than a set threshold, the actuator (4b) controls the locking claw (4c) to switch to the first working state to release the cage.

2. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 1, characterized in that, The load-bearing plate (4a) is provided with a placement groove (5), and a compression spring (6), a pressure plate (4b-1) and a switch (4b-2) are provided in the placement groove (5). When the cage is placed on the load-bearing plate (4a) to abut against the pressure plate (4b-1), the pressure plate (4b-1) can slide along the placement groove (5) to compress the compression spring (6). When the length change of the compression spring (6) is greater than a set threshold, the locking claw (4c) switches to the second working state. When the length change of the compression spring (6) is less than the set threshold, the locking claw (4c) switches to the first working state.

3. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 1, characterized in that, The flipping assembly (2) includes a bearing seat (2a), a flipping shaft (2b), and a support plate (2c). The bearing seat (2a) is set on the cast-in-place foundation. The two ends of the flipping shaft (2b) are respectively connected to different bearing seats (2a) so that the flipping shaft (2b) can rotate around its own axis. The support plate (2c) is connected to the flipping shaft (2b).

4. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 3, characterized in that, The bottom support assembly (3) includes a foundation platform (3a), a fixed bracket (3b) and a connecting plate (3c). The connecting plate (3c) is connected to the support plate (2c). The shape of the fixed bracket (3b) is defined by an arc. A pressure sensor (9) is provided on the fixed bracket (3b) to collect the pressure applied to it by the cage. When the pressure value collected by the pressure sensor (9) is abnormal, an alarm (11) can be triggered.

5. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 4, characterized in that, The pressure sensor (9) can define a first pressure acquisition point (9a), a second pressure acquisition point (9b), a third pressure acquisition point (9c), and a fourth pressure acquisition point (9d). The first pressure acquisition point (9a) and the second pressure acquisition point (9b) are located on the first side of the fixed bracket (3b), and the third pressure acquisition point (9c) and the fourth pressure acquisition point (9d) are located on the second side of the fixed bracket (3b). At the same time, the first pressure acquisition point (9a) and the third pressure acquisition point (9c) are located on the upper part of the fixed bracket (3b), and the second pressure acquisition point (9b) and the fourth pressure acquisition point (9d) are located on the bottom of the fixed bracket (3b). When the pressure value of at least one of the first pressure acquisition point (9a), the second pressure acquisition point (9b), the third pressure acquisition point (9c), and the fourth pressure acquisition point (9d) is greater than a set threshold, the alarm (11) is triggered to sound and light an alarm.

6. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 5, characterized in that, The fixed bracket (3b) consists of at least two support plates (14), the shape of which is defined by an arc. A plurality of hydraulic telescopic rods (15) are provided on the connecting plate (3c). Each hydraulic telescopic rod (15) is hinged to the end of the support plate (14) in a one-to-one correspondence manner. The hydraulic telescopic rods (15) are communicatively connected to the controller (10), so that the controller (10) can dynamically adjust the extension and retraction of the hydraulic telescopic rods (15).

7. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 6, characterized in that, When the pressure value of any one of the first pressure acquisition point (9a), the second pressure acquisition point (9b), the third pressure acquisition point (9c), and the fourth pressure acquisition point (9d) exceeds the set threshold, the controller (10) controls the hydraulic telescopic rod (15) corresponding to the corresponding pressure acquisition point to reduce the telescopic amount.

8. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 2, characterized in that, The foundation platform (3a) can move horizontally to increase or decrease the distance between itself and the fixed bracket (3b), wherein when the foundation platform (3a) moves toward the fixed bracket (3b), it can push the load-bearing plate (4a) to rotate.

9. The integrated knocking-down device for offshore wind turbine monopile cages according to claim 8, characterized in that, The load-bearing plate (12) is provided with a support beam (12) and a number of balls (13). When the load-bearing plate (12) is in a horizontal state, the support beam (12) contacts the ground so that the balls (13) are suspended in the air. When the foundation platform (3a) moves, it can abut against the balls (13).

Images