Folding cantilever beam

Abstract

The utility model discloses a folding cantilever beam which comprises a horizontal structure type bottom frame serving as a bottom support, a supporting frame extending to a floor is arranged at the rear end of the bottom frame, a vertical structure type front frame is arranged at the front end of the bottom frame, and vertical structure type side frames are arranged on the two sides of the bottom frame. A bottom plate is mounted on the upper side of the underframe; side plates are fixed on the side frames; the connecting sides of the side frames and the bottom frame are hinged, and the connecting sides of the front frame and the bottom frame are hinged; a protection frame is installed on the upper side of the side frame, and the protection frame and the side frame are installed in a telescopic mode. And the stored cantilever beam is convenient to transfer in a narrow space and transport for a long distance, and is simple and convenient to mount. Due to the fact that the side frames need to meet the height requirement of three quarters of the human body, the protective frame is independently arranged on the upper sides of the side frames, the protective frame is arranged in the height direction of the side frames in a telescopic mode and used for increasing the height of the side frames and meeting the protective requirement, and in order to not affect folding type storage of the side frames on the two sides, the protective frame can slide and retract into the side frames to prevent storage hindrance.

Description

Technical Field

[0001] This utility model belongs to the technical field of engineering construction equipment, and in particular relates to a folding cantilever beam. Background Technology

[0002] Prefabricated building design is a current trend, and the high prefabrication rate is a reality in the current construction market. To meet the prefabrication rate requirements of projects, ALC lightweight partition walls are being used more and more widely. Traditional cantilevered unloading platforms are no longer sufficient for hoisting large-sized ALC lightweight partition walls. Therefore, it is necessary to develop a larger cantilevered unloading platform fixing technology to meet the needs of large-sized ALC lightweight partition walls. The application of a large cantilevered unloading platform will greatly improve the efficiency of workers in transporting prefabricated materials, and the larger operating space also brings higher safety performance.

[0003] Existing cantilever beams use steel plates for support, and side protection is required for safety, resulting in a large weight and necessitating the use of cranes during high-rise installations. Furthermore, the fully extended cantilever beam is bulky, making transportation inconvenient and requiring significant storage space on the construction site. Therefore, this invention aims to develop a foldable cantilever beam, reducing its size through folding for easier transportation and storage. Utility Model Content

[0004] The purpose of this invention is to provide a foldable cantilever beam, which mainly involves preparing a foldable cantilever beam to reduce its volume through folding, making it easier to transport and store.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] A folding cantilever beam includes a horizontal structural base frame as a bottom support, a support frame extending to the floor slab at the rear end of the base frame, a vertical structural front frame at the front end of the base frame, and vertical structural side frames on both sides.

[0007] A base plate is installed on the upper side of the base frame, and a side plate is fixed to the side frame;

[0008] The side frame is hinged to the base frame, and the front frame is hinged to the base frame.

[0009] A protective frame is installed on the upper side of the side frame, and the protective frame is telescopically installed with the side frame.

[0010] Furthermore, an extension frame is provided on the lower side of the base frame corresponding to the front frame. The extension frame is perpendicular to the base frame, and the front frame is hinged to the upper side of the extension frame. A limit plate is provided at the overlap position between the base frame and the floor slab. The limit plate is perpendicular to the base frame, and the limit plate also has an extension on the upper side of the base frame. The extension and the extension frame have first hinge holes. First hinge shafts are provided on both sides of the bottom of the side frame. A second hinge hole is provided on the upper side of the extension frame, and second hinge shafts are provided on both sides of the front frame.

[0011] Furthermore, limit holes are provided on the upper side of both the side frame and the front frame for fixing with bolts.

[0012] Furthermore, the protective frame includes a horizontal bar and multiple vertical bars, all of which are perpendicular to the horizontal bar and extend along the length of the horizontal bar. The side frame includes vertical tubes corresponding to the vertical bars, and the vertical bars and corresponding vertical tubes are sleeved together. The vertical tubes are provided with fastening bolts for fixing the vertical bars.

[0013] Furthermore, the bottom of the base plate has a limiting groove for limiting the installation on the square tube of the base frame.

[0014] Furthermore, the support frame is provided with diagonal braces at the corresponding internal corner positions, and overlapping plates are fixed at the positions of the diagonal braces. Support beams are detachably installed on the overlapping plates.

[0015] This utility model has the following beneficial effects: The cantilever beam structure, designed as a folding and storage structure, allows the side frames on both sides to be simultaneously flipped and hinged towards the center for folding. The front frame can also be flipped and hinged to cover the folded side frames, reducing the overall volume of the cantilever beam. The folded cantilever beam facilitates transport in confined spaces and over long distances, and is easy to install. Since the side frames need to maintain a height of three-quarters of a person's body, a separate protective frame is installed on the upper side of the side frames. This protective frame extends and retracts along the height of the side frames to raise their height and meet protection requirements. To avoid affecting the folding storage of the side frames, the protective frame can slide and retract into the side frames, preventing obstruction during storage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0017] Figure 1 : A schematic diagram of the structure of this utility model in its open state.

[0018] Figure 2 : A schematic diagram of the structure of this utility model in its folded state.

[0019] Figure 3 : Schematic diagram of the side frame disassembly structure of this utility model.

[0020] Figure 4 : Schematic diagram of the front frame disassembly structure of this utility model.

[0021] Figure 5 : Schematic diagram of the disassembly structure of the protective frame of this utility model.

[0022] The components represented by each number in the attached diagram are listed below: base frame 1, support frame 4, front frame 3, side frame 2, base plate 5, side plate 6, protective frame 21, extension frame 11, limiting plate 12, fastening bolt 22, limiting groove 51, overlapping plate 41, and support beam 42. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] like Figures 1-3 As shown: A folding cantilever beam includes a horizontal structural base frame 1 as the bottom support, a support frame 4 extending to the floor slab at the rear end of the base frame 1, a vertical structural front frame 3 at the front end of the base frame 1, and vertical structural side frames 2 on both sides; the base frame, side frames, front frame and support frame all include transverse and longitudinal square tubes, the ends of which are fixed by welding to form a rectangular frame structure.

[0025] A base plate 5 is installed on the upper side of the base frame 1, and a side plate 6 is fixed on the side frame 2; these are used to cover the hollow parts between the structural frames, forming a complete support surface, which facilitates unloading and construction. The side plates help to improve side protection and enhance safety performance.

[0026] The side frame 2 is hinged to the base frame 1 on the side where it is connected, and the front frame 3 is hinged to the base frame 1 on the side where it is connected.

[0027] A protective frame 21 is installed on the upper side of the side frame 2, and the protective frame 21 is telescopically installed with the side frame 2.

[0028] This design utilizes a cantilever beam structure as a folding and storage mechanism. The side frames on both sides are simultaneously hinged and flipped towards the center for folding. The front frame can also be hinged and flipped over to cover the folded side frames, reducing the overall volume of the cantilever beam. The folded cantilever beam facilitates transport in confined spaces and over long distances, and installation is simple. Because the side frames need to maintain a height of three-quarters of a person's body, a separate protective frame is installed on the upper side of the side frames. This protective frame extends and retracts along the height of the side frames to elevate them and meet protection requirements. To avoid obstructing the folding storage of the side frames, the protective frame can slide and retract into the side frames.

[0029] like Figure 3As shown: An extension frame 11 is also provided on the lower side of the base frame 1 corresponding to the front frame 3. The extension frame 11 is set perpendicular to the base frame 1, and the front frame 3 is hinged to the upper side of the extension frame 11. In order to prevent the front frame from obstructing the folding of the side frame after folding, the extension frame is provided to raise the front frame and change the hinge position, so that the front frame can cover the upper side of the side frame after folding.

[0030] A limiting plate 12 is provided at the overlap position between the base frame 1 and the floor slab. The limiting plate 12 is perpendicular to the base frame 1, and the limiting plate 12 also has an extension on the upper side of the base frame 1. The limiting plate is used to abut against the side of the floor slab, on the one hand to limit the installation position of the base frame, and on the other hand to serve as a side support, improving the stability of the support point. The extension and the extension frame 11 are provided with first hinge holes. The bottom sides of the side frame 2 are provided with first hinge shafts, the upper side of the extension frame 11 is provided with second hinge holes, and the front frame 3 is provided with second hinge shafts on both sides.

[0031] like Figures 4-5 As shown: Limiting holes are provided on the upper side of both the side frame 2 and the front frame 3 for fixing with bolts. To improve stability when the side frame and front frame are open, they are fixed with bolts to prevent swaying. The protective frame 21 includes a horizontal bar and multiple vertical bars, all of which are perpendicular to the horizontal bar and extend along its length. The side frame 2 includes vertical tubes corresponding to the vertical bars, and the vertical bars and corresponding vertical tubes are interlocked. The vertical tubes are equipped with fastening bolts 22 for fixing the vertical bars.

[0032] like Figures 1-3 As shown: The bottom of the base plate 5 has a limiting groove 51 for limiting the installation on the square tube of the base frame 1. Each limiting groove has two parallel ribs, which not only fix the base plate and improve stability, but also increase the support strength of the base plate.

[0033] The support frame 4 is equipped with diagonal braces at corresponding internal corner positions, and overlapping plates 41 are fixed at the positions of the diagonal braces. Support beams 42 are detachably installed on the overlapping plates 41. The support frame has a height adjustment device to abut against the upper and lower floor slabs between floors, ensuring sufficient stability when the support frame overlaps on the floor slab. Lifting rings are also provided on both sides of the base frame for diagonal tensioning with steel wire ropes and embedded parts, improving the support strength at the far end of the base frame.

[0034] These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of this utility model, so that those skilled in the art can better understand and utilize this utility model.

Claims

1. A foldable cantilever beam, characterized by: It includes a horizontal structural base frame (1) as the bottom support, a support frame (4) extending to the floor slab at the rear end of the base frame (1), a vertical structural front frame (3) at the front end of the base frame (1), and vertical structural side frames (2) on both sides. The base frame (1) is equipped with a base plate (5) on its upper side, and the side frame (2) is fixed with a side plate (6); The side frame (2) is hinged to the base frame (1), and the front frame (3) is hinged to the base frame (1). A protective frame (21) is installed on the upper side of the side frame (2), and the protective frame (21) is telescopically installed with the side frame (2).

2. The folding cantilever beam according to claim 1, wherein: An extension frame (11) is also provided on the lower side of the base frame (1) corresponding to the front frame (3). The extension frame (11) is arranged perpendicular to the base frame (1), and the front frame (3) is hinged to the upper side of the extension frame (11).

3. The folding cantilever beam according to claim 2, wherein: A limiting plate (12) is provided at the overlap position between the base frame (1) and the floor slab. The limiting plate (12) is perpendicular to the base frame (1), and the limiting plate (12) also has an extension on the upper side of the base frame (1).

4. The folding cantilever beam according to claim 3, wherein: The extension and extension frame (11) are provided with a first hinge hole, the side frame (2) is provided with a first hinge shaft on both sides of the bottom, the extension frame (11) is provided with a second hinge hole on the upper side, and the front frame (3) is provided with a second hinge shaft on both sides.

5. The folding cantilever beam of claim 1, wherein: Limiting holes are provided on the upper side of both the side frame (2) and the front frame (3) for fixing with bolts.

6. The folding cantilever beam of claim 1, wherein: The protective frame (21) includes a horizontal bar and multiple vertical bars. The multiple vertical bars are perpendicular to the horizontal bar and extend along the length of the horizontal bar. The side frame (2) includes a vertical tube corresponding to the vertical bar. The vertical bar and the corresponding vertical tube are connected to each other. The vertical tube is provided with fastening bolts (22) for fixing the vertical bar.

7. The folding cantilever beam of claim 1, wherein: The bottom of the base plate (5) has a limiting groove (51) for limiting the installation on the square tube of the base frame (1).

8. The folding cantilever beam of claim 1, wherein: The support frame (4) is provided with diagonal bracing at the corresponding internal corner positions. The diagonal bracing is fixed with an overlapping plate (41), and the overlapping plate (41) is detachably installed with a support beam (42).

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