Marine large-diameter bored pile reinforcement cage lowering and tip driving device

Abstract

The utility model provides an offshore large-diameter bored pile reinforcement cage lowering and pinning device which comprises a #-shaped frame, a plurality of inverted-U-shaped limiting gantries are evenly arranged on the upper side of the frame, a supporting frame is inserted into the limiting gantries, a groove is formed in the front side of the upper surface of the supporting frame, and the rear side of the supporting frame is connected into the limiting gantries through inserting rods. And the support frame can move back and forth along the limiting door frame. The steel reinforcement cage supporting frame has the advantages that when the steel reinforcement cage supporting frame is used, a steel reinforcement cage is vertically placed in the frame, then the front sides of the multiple supporting frames penetrate through the corresponding limiting door frames and are inserted into the steel reinforcement cage, corresponding transverse bars on the steel reinforcement cage are in lap joint with the grooves in the supporting frames, and the steel reinforcement cage is supported through the supporting frames; in addition, the position of the supporting frame can be adjusted according to the section size of the reinforcement cage, and it is ensured that the reinforcement cage is supported through the grooves in the supporting frame. When the device is used for lowering the reinforcement cage, the construction effect is effectively improved, the stability is high, the use is safer, and the use of the reinforcement cage with different section sizes is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of offshore bridge pile foundation reinforcement cage construction, in particular to a device for lowering and driving a reinforcement cage of an offshore large-diameter bored pile. Background Art

[0002] During offshore bridge pile foundation construction, the installation and lowering of rebar cages is a critical step, and the ease of installation and lowering directly impacts the quality and progress of the project. Traditional cage-lowering piling systems use plug-in steel plates as temporary supports for the cages. These plates are easily deformed and unsuitable for load-bearing components. Furthermore, the rebar cages used in large-diameter offshore pile foundations are often variable-diameter, with some including inner and outer cages of varying diameters. Furthermore, the cages themselves are heavy, and the steel plates used as inserts for driving the cages must be made very thick as the weight increases. This makes operation difficult for construction personnel, impacting construction quality and progress, while also increasing construction costs and safety risks. Utility Model Content

[0003] In view of this, the present invention aims to overcome the deficiencies of the above-mentioned problems in the prior art and proposes a device for lowering and driving a reinforcement cage of a large-diameter bored pile at sea.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0005] A device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea includes a crisscross frame, a plurality of inverted limit door frames evenly arranged on the upper side of the frame, and a support frame inserted into the limit door frame. A groove is provided on the front side of the upper surface of the support frame, and the rear side of the support frame is connected to the limit door frame by an insertion rod, and the support frame can move forward and backward along the limit door frame.

[0006] Furthermore, a diagonal brace is fixed at each corner inside the frame.

[0007] Furthermore, there are four position-limiting door frames, which are fixedly connected to the upper sides of the corresponding diagonal braces.

[0008] Furthermore, positioning plates arranged perpendicular to the limiting door frame are symmetrically fixed on both sides of the rear side wall of the limiting door frame. A plurality of positioning holes are evenly opened on the positioning plates along the width direction. The rear side of the support frame and the positioning plates on both sides are connected together by inserting rods and cooperating with the corresponding positioning holes.

[0009] Furthermore, a ring handle is fixedly connected to the rear end of the support frame, and the insertion rod is arranged through the handle.

[0010] Furthermore, the support frame is an I-beam structure, and the front side of the web of the support frame extends out with flanges on the upper and lower sides, and a groove is set on the upper surface of the exposed front side of the web of the support frame, and the handle is fixed to the rear end of the web of the support frame.

[0011] Furthermore, reinforcement plates are fixedly connected to both left and right sides of the web of the support frame.

[0012] Furthermore, each side of the frame is also an I-beam structure, and every two adjacent I-beams on the frame are welded together, and a plurality of reinforcing ribs are provided on both sides of the I-beam web on each side.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] During use, the present invention's rebar cage lowering and top-driving device for large-diameter offshore bored piles vertically places the rebar cage in a through-hole within a frame. Multiple support frames are then inserted through corresponding limiting portals into the rebar cage, allowing the corresponding transverse bars on the cage to overlap in the grooves on the support frames, thereby supporting the cage. Furthermore, the support frames can be adjusted according to the cross-sectional dimensions of the rebar cage to ensure that the cage is supported by the grooves on the support frames. Using this device for lowering the rebar cage effectively improves construction efficiency, provides high stability, and provides greater safety, while also accommodating the use of rebar cages with varying cross-sectional dimensions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 This is a structural diagram of the installation of a top-driving device for lowering a reinforcement cage of a large-diameter bored pile at sea on a reinforcement cage according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure of the support frame, the limiting door frame and the diagonal brace according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the support frame and the limiting door frame according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the support frame structure according to an embodiment of the present utility model;

[0020] Figure 5 This is a cross-sectional view of the support frame described in an embodiment of the present utility model.

[0021] Description of reference numerals:

[0022] 1. Frame; 2. Diagonal brace; 3. Limiting door frame; 4. Support frame; 41. Groove; 5. Positioning plate; 6. Insert rod; 7. Steel cage; 8. Handle; 9. Reinforcement plate. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0024] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0025] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0027] As shown in the figure, a device for lowering and driving a reinforcement cage for large-diameter bored piles at sea comprises a crisscross frame 1, with a plurality of inverted rib-shaped limiting portals 3 evenly arranged on the upper side of the frame 1, and a support frame 4 inserted into the limiting portals 3. A groove 41 is provided on the front side of the upper surface of the support frame 4, and the rear side of the support frame 4 is connected to the limiting portal 3 via an insertion rod 6, and the support frame 4 can move forward and backward along the limiting portal 3. In this embodiment, when in use, the reinforcement cage 7 is vertically placed in the through hole in the frame 1, and then the front sides of the plurality of support frames 4 are passed through the corresponding limiting portals 3 and inserted into the reinforcement cage 7, so that the corresponding transverse bars on the reinforcement cage 7 overlap in the grooves 41 on the support frame 4, and the reinforcement cage 7 is supported by the support frame 4; in addition, the support frame 4 can adjust its position according to the cross-sectional size of the reinforcement cage 7 to ensure that the reinforcement cage 7 is supported by the grooves 41 on the support frame 4.

[0028] A diagonal brace 2 is fixed at each corner inside the frame 1 to enhance the stability of the frame 1. In this embodiment, the diagonal brace 2 is an I-beam structure, which is welded and fixed to the inside of the frame 1.

[0029] There are four position-limiting door frames 3, which are fixed on the upper sides of the corresponding diagonal braces 2. This design can provide sufficient installation space for the position-limiting door frames 3. In this embodiment, the top and both sides of the position-limiting door frames 3 are I-steel structures, which are welded together.

[0030] Positioning plates 5, arranged perpendicular to the position-limiting door frame 3, are symmetrically fixed to either side of the rear sidewall of the position-limiting door frame 3. Multiple positioning holes are evenly distributed across the width of the positioning plates 5. The rear side of the support frame 4 and the positioning plates 5 on either side are connected together by inserting rods 6 that mate with the corresponding positioning holes. In this embodiment, to adjust the position of the support frame 4, the inserting rods 6 are removed and the support frame 4 is moved back and forth until it is properly adjusted. The inserting rods 6 are then passed through the positioning plates 5 on both sides and the center support frame 4 to limit the position of the support frame 4. In this embodiment, the front end of the positioning plates 5 is welded to the rear sidewall of the position-limiting door frame 3, and the bottom end is welded to the upper side of the diagonal brace 2.

[0031] The rear end of the support frame 4 is fixed with an annular handle 8, and the insertion rod 6 is set through the handle 8. The setting of the handle 8 makes it convenient for construction workers to push and pull the support frame 4, and on the other hand, provides a connection point for the insertion rod 6 without the need for additional holes. Of course, here, when initially limiting the support frame 4, there is no need to ensure that the support frame 4 remains motionless. When lifting the frame 1, the support frame 4 will not swing or shake due to the gravity of the steel cage 7. Therefore, the hole provided by the handle 8 can meet the needs of the insertion rod 6 to limit the support frame 4.

[0032] The support frame 4 is an I-steel structure, and the front side of the web of the support frame 4 extends outward from the upper and lower flanges, and the groove 41 is set on the upper surface of the exposed front side of the web of the support frame 4, and the handle 8 is fixed to the rear end of the web of the support frame 4.

[0033] Reinforcement plates 9 are fixedly attached to both left and right sides of the web of the support frame 4 to enhance the bending resistance of the support frame 4 .

[0034] Each side of the frame 1 is also an I-beam structure, and every two adjacent I-beams on the frame 1 are welded together, and a plurality of reinforcing ribs are provided on both sides of the I-beam web on each side.

[0035] The working process of this embodiment is as follows:

[0036] When in use, the steel cage 7 is placed vertically in the through hole in the frame 1, and then the front sides of multiple support frames 4 are passed through the corresponding limit door frames 3 and inserted into the steel cage 7, so that the corresponding transverse reinforcements on the steel cage 7 are overlapped in the grooves 41 on the support frames 4, and the steel cage 7 is supported by the support frames 4; then the insertion rod 6 is inserted into the handle 8 and the corresponding positioning hole to position the support frame 4, and finally the frame 1 is lifted and moved together with the steel cage 7 by the lifting device.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea, characterized by: It includes a well-shaped frame, and a plurality of inverted shaped limit door frames are evenly arranged on the upper side of the frame, and a support frame is inserted into the limit door frame. A groove is opened on the front side of the upper surface of the support frame, and the rear side of the support frame is connected to the limit door frame through an insertion rod, and the support frame can move forward and backward along the limit door frame.

2. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 1, characterized in that: A diagonal brace is fixed at each corner inside the frame.

3. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 2, characterized in that: There are four limit door frames, which are fixed on the upper sides of the corresponding diagonal braces.

4. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 1, characterized in that: Positioning plates arranged perpendicular to the limiting door frame are symmetrically fixed on both sides of the rear side wall of the limiting door frame. Multiple positioning holes are evenly opened on the positioning plates along the width direction. The rear side of the support frame and the positioning plates on both sides are connected together by inserting rods and cooperating with the corresponding positioning holes.

5. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 4, characterized in that: A ring handle is fixedly connected to the rear end of the support frame, and the insertion rod is arranged through the handle.

6. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 5, characterized in that: The support frame is an I-steel structure, and the front side of the web of the support frame extends out with flanges on both sides, and a groove is set on the upper surface of the exposed front side of the web of the support frame, and the handle is fixed to the rear end of the web of the support frame.

7. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 6, characterized in that: Reinforcement plates are fixedly connected to the left and right sides of the web of the support frame.

8. The device for lowering and driving the reinforcement cage of a large-diameter bored pile at sea according to claim 1, characterized in that: Each side of the frame is also an I-beam structure, and every two adjacent I-beams on the frame are welded together, and multiple reinforcing ribs are provided on both sides of the I-beam web on each side.

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