Fine adjustment device for lowering of offshore large-diameter bored pile reinforcement cage

Abstract

The utility model provides an offshore large-diameter bored pile reinforcement cage lowering fine adjustment device which comprises a guide mechanism, and the guide mechanism is located in a guide frame and located on the outer side of a steel casing. A reinforcing rod is arranged in the guide frame, and the guide mechanism is connected with the reinforcing rod; the guide mechanism comprises a connecting piece, a protective cover, a fine adjustment assembly, a positioning frame and a positioning sleeve, the positioning sleeve is connected with the reinforcing rod, the connecting piece is connected with the positioning sleeve through the positioning frame, a positioning seat is arranged at one end of the protective cover, the positioning seat is connected with the connecting piece, and the fine adjustment assembly is arranged on the positioning seat. A first air cylinder is arranged in the protective cover, and the first air cylinder is connected with the fine adjustment assembly. The lowering fine adjustment device is provided with the guide mechanism, and the fine adjustment assembly is matched with the driving assembly, so that the plane position and the verticality of the steel casing can be accurately and conveniently adjusted, and the steel casing can be accurately lowered in place.

Description

Technical Field

[0001] This utility model belongs to the field of bridge construction, and in particular relates to a device for fine-tuning the lowering of steel cages for large-diameter bored piles at sea. Background Technology

[0002] In the construction of large-scale offshore bridges, the bridge pile foundation typically involves driving permanent steel casings, drilling holes, lowering the reinforcing cage, and then pouring underwater concrete. In special circumstances, such as when the steel casings encounter boulders during driving and shift, fine-tuning is required; otherwise, they cannot be successfully lowered into place. Summary of the Invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes a device for fine-tuning the lowering of steel cages for large-diameter offshore bored piles.

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

[0005] A fine-tuning device for lowering a steel cage for a large-diameter offshore bored pile includes a guiding mechanism located inside a guide frame and outside a steel casing.

[0006] The guide frame is provided with a reinforcing rod inside, and the guide mechanism is connected to the reinforcing rod;

[0007] The guiding mechanism includes a connector, a protective cover, a fine-tuning component, a positioning frame, and a positioning sleeve. The positioning sleeve is connected to the reinforcing rod. The connector is connected to the positioning sleeve via the positioning frame. A positioning seat is provided at one end of the protective cover, and the positioning seat is connected to the connector. A first cylinder is provided inside the protective cover, and the first cylinder is connected to the fine-tuning component. The guide frame has a square cross-section, and the reinforcing rod is located at the included angle of the guide frame, forming an isosceles triangle with the side of the guide frame.

[0008] Furthermore, the fine-tuning component includes a top plate and two side plates, with the two ends of the top plate connected to the corresponding side plates.

[0009] Furthermore, the included angle between the top plate and the side plate is 120-160 degrees. This increases the range of fine-tuning, thereby improving the accuracy of fine-tuning.

[0010] Furthermore, both the top plate and the side plate are provided with buffer protrusions, which are adjacent to the steel casing. These buffer protrusions prevent rigid contact between the top plate, side plate, and steel casing, thus providing a buffering effect and reducing damage and aging of the mechanical structure.

[0011] Furthermore, the guiding mechanism also includes a drive assembly, which comprises a second cylinder and a drive rod. The second cylinder is located on one side of the positioning frame, with one end connected to the positioning sleeve and the other end rotatably connected to the drive rod. The drive rod is connected to the positioning seat. The second cylinder rotatably connects to the drive rod, while the drive rod is fixedly connected to the positioning seat. The second cylinder moves one end of the drive rod, thereby rotating the positioning seat and changing the angle of the fine-tuning assembly, thus improving the fine-tuning angle range of the steel casing.

[0012] Compared with the prior art, this utility model has the following advantages:

[0013] The offshore large-diameter bored pile reinforcement cage lowering fine adjustment device described in this utility model is equipped with a guiding mechanism. Through the cooperation of the fine adjustment component and the drive component, the planar position and verticality of the steel casing can be adjusted accurately and conveniently, ensuring that the steel casing is accurately lowered into place and also ensuring the construction quality of the pile foundation. It is used for construction situations where permanent steel casings need to be lowered in the foundation construction of large offshore bridges. Attached Figure Description

[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0015] Figure 1 This is a schematic diagram of the offshore large-diameter bored pile reinforcement cage lowering and fine-tuning device described in this utility model embodiment;

[0016] Figure 2 This is a schematic diagram of the guiding mechanism described in an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures:

[0018] 1. Guiding mechanism; 2. Steel casing; 3. Guide frame; 11. Connecting piece; 12. Protective cover; 13. First cylinder; 14. Fine adjustment assembly; 15. Second cylinder; 16. Drive rod; 17. Positioning seat; 18. Top plate; 19. Side plate; 110. Positioning frame; 111. Positioning sleeve; 31. Reinforcing rod. Detailed Implementation

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not 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 utility model. Furthermore, the terms "first," "second," etc., 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, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1-2 As shown, a fine-tuning device for lowering a large-diameter offshore bored pile reinforcement cage includes a guide mechanism 1 located inside a guide frame 3 and outside a steel casing 2. A reinforcing rod 31 is provided inside the guide frame 3, and the guide mechanism 1 is connected to the reinforcing rod 31. The guide mechanism 1 includes a connector 11, a protective cover 12, a fine-tuning component 14, a positioning frame 110, and a positioning sleeve 111. The positioning sleeve 111 is connected to the reinforcing rod 31, and the connector 11 is connected to the positioning sleeve 111 via the positioning frame 110. A positioning seat 17 is provided at one end of the protective cover 12, and the positioning seat 17 is connected to the connector 11. A first cylinder 13 is provided inside the protective cover 12, and the first cylinder 13 is connected to the fine-tuning component 14.

[0024] The fine-tuning assembly 14 includes a top plate 18 and two side plates 19, with each end of the top plate 18 connected to a corresponding side plate 19. The angle between the top plate 18 and the side plates 19 is 50 degrees. This increases the fine-tuning range, thereby improving the accuracy of the fine-tuning. Both the top plate 18 and the side plates 19 have buffer protrusions on their surfaces, which are adjacent to the steel casing 2. These buffer protrusions prevent rigid contact between the top plate 18, the side plates 19, and the steel casing 2, providing a buffering effect and reducing damage and aging of the mechanical mechanism.

[0025] The guiding mechanism 1 further includes a driving assembly, which includes a second cylinder 15 and a driving rod 16. The second cylinder 15 is located on one side of the positioning frame 110. One end of the second cylinder 15 is connected to the positioning sleeve 111, and the other end is rotatably connected to the driving rod 16. The driving rod 16 is connected to the positioning seat 17. The second cylinder 15 is rotatably connected to the driving rod 16, while the driving rod 16 is fixedly connected to the positioning seat 17. The second cylinder 15 drives one end of the driving rod 16 to move, thereby causing the positioning seat 17 to rotate, which changes the angle of the fine-tuning assembly 14, thus improving the fine-tuning angle range of the steel casing 2.

[0026] During the fine-tuning process, the first cylinder 13 is activated, which moves the top plate 18 inward to perform a forward fine-tuning of the steel casing 2. The second cylinder 15 is activated, which moves one end of the drive rod 16. When the piston reaches the top dead center, it rotates one end of the drive rod 16 clockwise. The drive rod 16 then moves the right side top plate 19 to perform a fine-tuning of the steel casing 2. When the piston reaches the bottom dead center, it rotates one end of the drive rod 16 counterclockwise. The drive rod 16 then moves the left side top plate 19 to perform a fine-tuning of the steel casing 2.

[0027] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for fine-tuning the lowering of a steel cage for a large-diameter offshore bored pile, characterized in that: Includes a guiding mechanism, which is located inside the guide frame and outside the steel casing; The guide frame is provided with a reinforcing rod inside, and the guide mechanism is connected to the reinforcing rod; The guiding mechanism includes a connector, a protective cover, a fine-tuning component, a positioning frame, and a positioning sleeve. The positioning sleeve is connected to the reinforcing rod. The connector is connected to the positioning sleeve through the positioning frame. A positioning seat is provided at one end of the protective cover. The positioning seat is connected to the connector. A first cylinder is provided inside the protective cover. The first cylinder is connected to the fine-tuning component.

2. The device for fine-tuning the lowering of the reinforcing cage for large-diameter offshore bored piles according to claim 1, characterized in that: The fine-tuning assembly includes a top plate and two side plates, with the two ends of the top plate connected to the corresponding side plates.

3. The device for fine-tuning the lowering of the reinforcing cage for large-diameter offshore bored piles according to claim 2, characterized in that: The angle between the top plate and the side plate is 120-160 degrees.

4. The device for fine-tuning the lowering of the reinforcing cage for large-diameter offshore bored piles according to claim 2, characterized in that: Both the top plate and the side plate are provided with buffer protrusions, which are adjacent to the steel casing.

5. The device for fine-tuning the lowering of the reinforcing cage for large-diameter offshore bored piles according to claim 1, characterized in that: The guiding mechanism further includes a drive assembly, which includes a second cylinder and a drive rod. The second cylinder is located on one side of the positioning frame. One end of the second cylinder is connected to the positioning sleeve, and the other end is rotatably connected to the drive rod. The drive rod is connected to the positioning seat.

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