Prefabricated stair reserved hole protection steel platform

Abstract

The utility model provides a kind of prefabricated stair reserved hole protection steel platform, including platform frame, including a group of crossbeam and the support pole being connected perpendicularly with crossbeam one end, and the other end of support pole is connected through long inclined brace with the other end of crossbeam, and the triangular stable structure is formed between crossbeam, support pole and long inclined brace, and it is connected through several groups of connecting beam between crossbeam and crossbeam, between support pole and support pole;Mounting portion, including the first retaining rod being extended by crossbeam to away from support one end, and the second retaining rod being extended to away from crossbeam one end and being arranged in the bottom side wall of support pole, first retaining rod is locked and fixed with the stair reserved position above, and second retaining rod is locked and fixed with the stair reserved position below;Movable flap assembly, including hinge structure being arranged above platform frame, and movable flap being connected hinge structure, movable flap assembly is convenient for temporarily opening or closing hole, and it has the functions of protection and passing, overall structure is simple, installation is convenient, and applicability is strong.

Description

Technical Field

[0001] This utility model relates to a protective steel platform for prefabricated staircase openings. Background Technology

[0002] With the national advocacy of green construction and sustainable development, prefabricated buildings are becoming increasingly common. Prefabricated construction has been around for four or five decades, but to date, the protection of prefabricated staircase openings still primarily relies on steel pipe and fastener railings, which offer limited protection and require encroaching on work space for fixing. To address this gap in existing safety technology, we propose a protective steel platform for prefabricated staircase openings. Utility Model Content

[0003] This utility model provides a protective steel platform for prefabricated staircase openings, which can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows: A prefabricated steel platform for protecting reserved openings in staircases, comprising: The platform frame includes a set of parallel beams and a support rod that is perpendicularly connected to one end of the beams. The other end of the beams and the other end of the support rods are connected by long diagonal braces. The beams, support rods and long diagonal braces form a triangular stable structure. The beams and support rods are connected by several sets of connecting beams. The installation part includes a first fixing rod extending from the crossbeam away from the support end, and a second fixing rod provided on the bottom side wall of the support rod extending away from the crossbeam end. The first fixing rod is locked and fixed to the upper staircase reserved position, and the second fixing rod is locked and fixed to the lower staircase reserved position. The movable flap assembly includes a hinge structure disposed above the platform frame and a rotatable movable flap connected to the hinge structure.

[0005] As a further improvement, the long diagonal brace is connected to the short diagonal brace on its side wall, and the other end of the short diagonal brace is fixedly set at the angle between the crossbeam and the support rod.

[0006] As a further improvement, the crossbeams are fixedly connected to each other by long diagonal braces, and the support rods are fixedly connected to each other by long diagonal braces.

[0007] As a further improvement, several sets of connecting beams are provided between the long diagonal braces.

[0008] As a further improvement, the crossbeam and the support rod, and the crossbeam and the connecting beam are fastened together by bolts. The long and short diagonal braces are provided with pins on both sides. The crossbeam, support rod, and long diagonal brace are provided with pin holes that are compatible with the pins. The pins are inserted into the pin holes for fixed installation.

[0009] As a further improvement, the hinge structure includes hinge holes disposed on the support beam and the movable flap, and a steel shaft passing through the hinge holes.

[0010] As a further improvement, a torsion spring is provided on the steel shaft, one end of which is connected to a hinge hole on the support beam, and the other end of which is connected to a hinge hole on the movable flap.

[0011] As a further improvement, an extension plate is symmetrically arranged on both sides of the movable flap, and a protrusion is provided on the extension plate. A rotatable side guard plate is provided on the crossbeam, and the side guard plate is provided with a corresponding insertion groove for the extension plate. When the movable flap is flipped over to the top of the crossbeam, the side guard plates on both sides are placed vertically, so that the extension plate passes through the insertion groove. The torsion spring twists the movable flap, and the protrusion presses against the side wall of the insertion groove, thereby fixing the side guard plate.

[0012] The beneficial effects of this utility model are: This utility model uses the prefabricated staircase installation position reserved in the stairwell opening for fixing, avoiding the traditional guardrail mode that requires encroaching on the working space for fixing. Moreover, the structure is solid, the safety is high, the tool is modular, and it can also be used as a temporary working platform, which is flexible and versatile, making up for the defects of the prior art. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the protective steel platform for the reserved opening of the prefabricated staircase of this utility model.

[0015] Figure 2 This is a schematic diagram of the installation structure of the protective steel platform for the reserved opening of the prefabricated staircase of this utility model.

[0016] Figure 3 This is a three-dimensional structural schematic diagram of another embodiment of the prefabricated staircase reserved opening protection steel platform of this utility model.

[0017] Figure 4 This is an exploded structural diagram of another embodiment of the prefabricated staircase reserved opening protection steel platform of this utility model.

[0018] The attached diagram is labeled as follows: 10. Platform frame; 11. Crossbeam; 12. Support rod; 13. Long diagonal brace; 14. Connecting beam; 15. Short diagonal brace; 20. Mounting part; 21. First retaining rod; 22. Second retaining rod; 30. Movable flap assembly; 31. Hinge structure; 311. Hinge hole; 312. Steel shaft; 313. Torsion spring; 32. Movable flap; 321. Extension plate; 322. Protrusion; 40. Side guard plate; 41. Insertion slot. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0020] In the description of this utility model, the terms "first" and "second" 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, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] Reference Figures 1-2 As shown, a prefabricated steel platform for protecting reserved openings in staircases includes: The platform frame 10 includes a set of parallel crossbeams 11 and a support rod 12 perpendicularly connected to one end of the crossbeams 11. The other end of the crossbeams 11 and the other end of the support rod 12 are connected by a long diagonal brace 13. The crossbeams 11, the support rod 12 and the long diagonal brace 13 form a triangular stable structure. The crossbeams 11 and the support rods 12 are connected by a number of connecting beams 14. The mounting part 20 includes a first fixing rod 21 extending from the crossbeam 11 away from the support end, and a second fixing rod 22 provided on the bottom side wall of the support rod 12 extending away from the crossbeam 11. The first fixing rod 21 is locked and fixed to the upper staircase reserved position, and the second fixing rod 22 is locked and fixed to the lower staircase reserved position. The movable flap assembly 30 includes a hinge structure 31 set above the platform frame 10 and a rotatable movable flap 32 connected to the hinge structure 31. It provides overall stability through a triangular stabilizing structure. The installation part is fixed by a reserved opening, which does not occupy the working space. The movable flap assembly is convenient for temporarily opening or closing the opening, and has both protection and passage functions. The overall structure is simple, easy to install, and highly applicable.

[0022] As a further improvement, the side wall of the long diagonal brace 13 is connected to the short diagonal brace 15, and the other end of the short diagonal brace 15 is fixedly set at the angle between the crossbeam 11 and the support rod 12. The short diagonal brace 15 further enhances the rigidity and deformation resistance of the platform frame, especially providing additional support in areas of concentrated stress, thereby improving the stability and safety of the overall structure.

[0023] As a further improvement, the crossbeams 11 are fixedly connected to each other by long diagonal braces 13, and the support rods 12 are fixedly connected to each other by long diagonal braces 13. The long diagonal braces 13 connect multiple crossbeams 11 and support rods 12 into a single unit, forming a grid-like reinforced structure that effectively distributes the load, prevents local deformation, and improves the overall load-bearing capacity and resistance to lateral forces.

[0024] Reference Figure 3 As shown, several sets of connecting beams 14 are provided between the long diagonal braces 13. The connecting beams 14 further strengthen the connection between the long diagonal braces, prevent them from buckling laterally, and improve the stiffness and stability of the overall structure. They are especially suitable for large-span or high-load conditions and can also be used as temporary stairs for going up and down stairs.

[0025] In one embodiment, the crossbeam 11 and the support rod 12, and the crossbeam 11 and the connecting beam are fastened together by bolts. The long diagonal brace 13 and the short diagonal brace 15 are provided with pins on both sides. The side walls of the crossbeam 11, the support rod 12, and the long diagonal brace 13 are provided with pin holes that are compatible with the pins. The pins are inserted into the pin holes for fixed installation. The connection method of bolts and pins facilitates quick on-site installation and disassembly without welding, saving time and reducing construction difficulty. At the same time, it ensures a firm connection, is reusable, and conforms to the trend of tool-based and modular construction.

[0026] Reference Figure 4 As shown, the hinge structure 31 includes a hinge hole 311 provided on the support beam and the movable flap 32, and a steel shaft 312 passing through the hinge hole 311. The hinge structure is simple and reliable, and the steel shaft 312 provides stable rotational support, ensuring smooth opening and closing of the movable flap. It is durable and suitable for construction environments with frequent use.

[0027] Reference Figures 3-4As shown, in another embodiment, a torsion spring 313 is provided on the steel shaft 312. One end of the torsion spring 313 is connected to a hinge hole 311 on the support beam, and the other end of the torsion spring 313 is connected to a hinge hole 311 on the movable flap 32. The torsion spring provides an automatic reset function, allowing the movable flap to close automatically when no one is operating it, avoiding safety hazards caused by open openings, and reducing the burden of manual operation. An extension plate 321 is symmetrically arranged on both sides of the movable flap 32. A protrusion 322 is provided on the extension plate 321. A rotatable side guard plate 40 is provided on the crossbeam 11. The side guard plate 40 is provided with a corresponding insertion groove 41 for the extension plate 321. When the movable flap is flipped above the crossbeam 11, the side guard plates 40 on both sides are placed vertically, so that the extension plate 321 passes through the insertion groove 41. The torsion spring 313 twists the movable flap 32, and the protrusion 322 presses against the side wall of the insertion groove 41, thereby fixing the side guard plate 40. This structure achieves linkage and fixation between the movable flap and the side guard plate, eliminating the need for additional locks, simplifying operation, and ensuring high safety. The engagement of the protrusion and the insertion slot is automatically locked by the torsion spring, preventing the guard plate from loosening or falling off, making it particularly suitable for high-altitude work scenarios.

[0028] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A protective steel platform for prefabricated staircase openings, characterized in that, include: The platform frame (10) includes a set of parallel beams (11) and a support rod (12) perpendicularly connected to one end of the beams (11). The other end of the beams (11) is connected to the other end of the support rod (12) by a long diagonal brace (13). The beams (11), the support rod (12) and the long diagonal brace (13) form a triangular stable structure. The beams (11) are connected to each other and the support rods (12) are connected to each other by several sets of connecting beams (14). The installation part (20) includes a first fixing rod (21) extending from the crossbeam (11) away from the support end, and a second fixing rod (22) provided on the bottom side wall of the support rod (12) extending away from the crossbeam (11). The first fixing rod (21) is locked and fixed to the upper staircase reserved position, and the second fixing rod (22) is locked and fixed to the lower staircase reserved position. The movable flap assembly (30) includes a hinge structure (31) disposed above the platform frame (10) and a rotatable movable flap (32) connected to the hinge structure (31).

2. The prefabricated staircase reserved opening protective steel platform according to claim 1, characterized in that, The long diagonal brace (13) is connected to the short diagonal brace (15) on its side wall, and the other end of the short diagonal brace (15) is fixedly set at the angle between the crossbeam (11) and the support rod (12).

3. A prefabricated staircase reserved opening protective steel platform according to claim 2, characterized in that, The crossbeams (11) are fixedly connected to each other by long diagonal braces (13), and the support rods (12) are fixedly connected to each other by long diagonal braces (13).

4. A prefabricated steel platform for protecting reserved openings in a staircase according to claim 1, characterized in that, Several sets of connecting beams (14) are provided between the long diagonal braces (13).

5. A prefabricated staircase reserved opening protective steel platform according to claim 3, characterized in that, The crossbeam (11) and the support rod (12) are locked together by bolts, and the crossbeam (11) and the connecting beam are locked together by bolts. The long diagonal brace (13) and the short diagonal brace (15) are provided with pins on both sides. The side walls of the crossbeam (11), the support rod (12) and the long diagonal brace (13) are provided with pin holes that are compatible with the pins. The pins are inserted into the pin holes for fixed installation.

6. A prefabricated staircase reserved opening protective steel platform according to claim 1, characterized in that, The hinge structure (31) includes a hinge hole (311) provided on the support beam and the movable flap (32), and a steel shaft (312) passing through the hinge hole (311).

7. A prefabricated staircase reserved opening protective steel platform according to claim 6, characterized in that, A torsion spring (313) is provided on the steel shaft (312). One end of the torsion spring (313) is connected to the hinge hole (311) on the support beam, and the other end of the torsion spring (313) is connected to the hinge hole (311) on the movable flap (32).

8. A prefabricated staircase reserved opening protective steel platform according to claim 7, characterized in that, The movable flap (32) is symmetrically provided with an extension plate (321) on both sides. The extension plate (321) is provided with a protrusion (322). The crossbeam (11) is provided with a rotatable side guard plate (40). The side guard plate (40) is provided with a corresponding insertion groove (41) for the extension plate (321). When the movable flap is flipped above the crossbeam (11), the side guard plates (40) on both sides are placed vertically, so that the extension plate (321) passes through the insertion groove (41). The torsion spring (313) twists the movable flap (32), and the protrusion (322) presses against the side wall of the insertion groove (41), thereby fixing the side guard plate (40).

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