Steel ladder convenient to install

Abstract

The utility model discloses a steel ladder convenient to install, which comprises a bearing beam, a handrail and a plurality of step plates, the handrail and the plurality of step plates are all installed on the bearing beam, a quick-assembly structure is arranged between adjacent step plates, the quick-assembly structure comprises an elbow plate, a fixing ring, a locking block and a torsion spring, the elbow plate is arranged at one end of the step plate, and the fixing ring is arranged at the other end of the step plate. The fixing ring is arranged at the other end of the step plate, the locking block is rotationally installed in a groove hole of the step plate through the torsional spring, a limiting protrusion used for the locking block is arranged in the groove hole, and the bent plate is installed in the fixing ring in a sliding mode and pressed by the locking block. The step plates of the steel ladder do not need to be welded during installation and are extremely convenient to fix, the adjacent step plates can be sequentially connected by means of the quick connection structures during installation, the steel ladder has a self-locking function, the phenomenon that the step plates are disconnected is prevented, safety and stability are guaranteed, in addition, the steel ladder is time-saving and labor-saving to install, efficiency is improved, and the steel ladder is suitable for popularization and application. And meanwhile, disassembly and replacement are convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of steel ladders, in particular to a steel ladder which is easy to install. Background Art

[0002] Steel ladders are common step ladder structures in multi-story steel structure buildings. The speed and stability of steel ladder installation affects the upper and lower connectivity and normal use of multi-story steel structure buildings.

[0003] A general steel ladder is composed of multiple steel footrests welded in sequence according to a step structure. The entire installation process is slow and troublesome, and special welding equipment needs to be carried. On-site installation is extremely inconvenient. Therefore, there is an urgent need for an easy-to-install steel ladder to meet the normal use of multi-story steel structure buildings. Utility Model Content

[0004] The utility model aims to provide a steel ladder which is easy to install, so as to solve the problem that a general steel ladder is formed by welding a plurality of steel footrest straight plates in sequence according to a ladder structure, and the whole installation process is slow and troublesome.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A steel ladder that is easy to install, includes a load-bearing beam, a handrail and a tread, the handrail and a plurality of treads are installed on the load-bearing beam, a quick-install structure is arranged between adjacent treads, the quick-install structure includes an elbow plate, a fixing ring, a locking block and a torsion spring, the elbow plate is arranged at one end of the tread, the fixing ring is arranged at the other end of the tread, the locking block is rotatably installed in a slot hole of the tread through the torsion spring, a limiting protrusion for the locking block is arranged in the slot hole, and the elbow plate is slidably installed in the fixing ring and is pressed by the locking block.

[0007] A further technical solution is that the locking block is a wedge-shaped block, and the larger end of the wedge-shaped block is tightly pressed against the step board.

[0008] A further technical solution is that the tread plate is an integrally bent L-shaped steel plate.

[0009] A further technical solution is that a groove for installing the tread is provided on the load-bearing beam.

[0010] A further technical solution is: the load-bearing beam is an I-beam.

[0011] A further technical solution is that there are at least two locking blocks.

[0012] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0013] The utility model provides a steel ladder which is easy to install. The treads of the steel ladder do not need welding during installation and are extremely convenient to fix. During installation, adjacent treads can be connected in sequence with the help of a quick-connect structure, and the ladder has a self-locking function to prevent disconnection between the treads, thereby ensuring safety and stability. In addition, the steel ladder is easy to install and labor-saving, and has improved efficiency. At the same time, disassembly and replacement are also convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a steel ladder which is easy to install.

[0015] Figure 2 For this utility model Figure 1 Schematic diagram of the structure of the middle step plate.

[0016] Figure 3 For this utility model Figure 1 Structural schematic diagram of the medium quick-loading structure.

[0017] Figure numerals: 1. load-bearing beam; 2. handrail; 3. step board; 4. quick-install structure; 5. elbow plate; 6. fixing ring; 7. locking block; 8. torsion spring; 9. slot; 10. limiting protrusion; 11. groove. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0021] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0022] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model 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 a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Embodiment 1:

[0025] In this embodiment, Figure 1 , Figure 2 and Figure 3 As shown, a steel ladder that is easy to install includes a load-bearing beam 1, a handrail 2 and a plurality of treads 3. The handrail 2 and the plurality of treads 3 are all installed on the load-bearing beam 1. A quick-install structure 4 is arranged between adjacent treads 3. The quick-install structure 4 includes an elbow plate 5, a fixing ring 6, a locking block 7 and a torsion spring 8. The elbow plate 5 is arranged at one end of the tread 3, and the fixing ring 6 is arranged at the other end of the tread 3. The locking block 7 is rotatably installed in a slot hole 9 of the tread 3 through the torsion spring 8. A limiting protrusion 10 for the locking block 7 is arranged in the slot hole 9. The elbow plate 5 is slidably installed in the fixing ring 6 and is pressed by the locking block 7.

[0026] During installation, first place the load-bearing beams 1 (usually two beams) between the upper and lower floors of the steel structure and lock them with bolts. Then, after taking protective measures to ensure safety, the treads 3 are installed on the load-bearing beams 1 in sequence through the quick-install structure 4 in accordance with the general step ladder structure (usually installed from top to bottom). When installing the treads 3, first fix one tread 3 of the foundation to the load-bearing beam 1, and then insert the elbow plate 5 of the next tread 3 downward into the fixing ring 6. During this period, the locking block 7 is retracted by the force of the elbow plate 5, which does not affect the installation of the elbow plate 5. After the elbow plate 5 is in place, the locking block 7 returns under the action of the torsion spring 8 and presses the elbow plate 5 or the tread 3 to play a locking role. Finally, all the treads 3 are installed in sequence in the above manner.

[0027] The handrail 2 is symmetrically installed on the step board 3 or the load-bearing beam 1. If it is installed directly on the load-bearing beam 1, it should be installed before the step board 3 and on this basis, the protective measures should be appropriately exempted or reduced under the premise of ensuring safety.

[0028] Preferably, the locking block 7 is a wedge-shaped block, and the larger end of the wedge-shaped block is tightly pressed against the step board 3 .

[0029] The larger end of the locking block 7 is located at the bottom, that is, it is tightly pressed against the step plate 3, with a large contact surface and good stability.

[0030] Preferably, the tread plate 3 is an integrally bent L-shaped steel plate.

[0031] Preferably, a groove 11 for mounting the tread plate 3 is provided on the load-bearing beam 1 .

[0032] The tread plates 3 are inserted into the grooves 11 on the load-bearing beam 1 to facilitate initial positioning and installation, and can be fixed with bolts during the process.

[0033] Preferably, the load-bearing beam 1 is an I-beam.

[0034] Preferably, there are at least two locking blocks 7.

[0035] There are two or more locking blocks 7 to prevent the quick-install structure 4 from losing its function due to accidental damage or kicking, and thus failing to play its intended role.

[0036] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel ladder that is easy to install, comprising a load-bearing beam (1), a handrail (2) and a tread (3), wherein the handrail (2) and a plurality of treads (3) are installed on the load-bearing beam (1), characterized in that: A quick-install structure (4) is provided between adjacent treads (3), the quick-install structure (4) comprising an elbow plate (5), a fixing ring (6), a locking block (7) and a torsion spring (8), the elbow plate (5) being provided at one end of the tread (3), the fixing ring (6) being provided at the other end of the tread (3), the locking block (7) being rotatably mounted in a slot hole (9) of the tread (3) via the torsion spring (8), a limiting protrusion (10) for the locking block (7) being provided in the slot hole (9), and the elbow plate (5) being slidably mounted in the fixing ring (6) and being pressed by the locking block (7).

2. The easy-to-install steel ladder according to claim 1, characterized in that: The locking block (7) is a wedge-shaped block, and the larger end of the wedge-shaped block is tightly pressed against the step plate (3).

3. The easy-to-install steel ladder according to claim 1 is characterized in that: The tread plate (3) is an integrally bent L-shaped steel plate.

4. The easy-to-install steel ladder according to claim 1 is characterized in that: The load-bearing beam (1) is provided with a groove (11) for mounting the tread plate (3).

5. The easy-to-install steel ladder according to claim 1 is characterized in that: The load-bearing beam (1) is an I-beam.

6. The easy-to-install steel ladder according to claim 1, characterized in that: There are at least two locking blocks (7).

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