Returnable telescopic construction temporary steel stair

Abstract

The utility model belongs to the technical field of constructional engineering equipment, and provides a turnover telescopic construction temporary steel stair which comprises a prefabricated stair supporting part, a stair step platform part and an upper protective handrail part. The stair supporting part comprises a telescopic base, a supporting frame and an aluminum mold mounting operation platform; the supporting frame surrounds the periphery of the stair step platform part and is used for supporting the stair step platform part; the telescopic base is connected to the bottom of the supporting frame. The upper protective handrail part comprises protective handrail vertical rods and protective square tube handrails; and the protective barrier vertical rod is connected with the stair supporting part. By the adoption of the technical scheme, staircase gap protection before the prefabricated staircase is assembled is effectively achieved, workers can climb a working face conveniently, and safety is good; the stair base is telescopic and excellent in practicability; the upper protective barrier is detachable and convenient to transport and hoist; repeated turnover needs can be achieved, and economy is achieved; the stair is simple in construction and flexible in application.

Description

Technical Field

[0001] This utility model relates to the field of building engineering equipment technology, and in particular to a reusable telescopic temporary steel staircase for construction. Background Technology

[0002] Currently, during the main construction phase of a building, after the staircase is completed, the prefabricated staircases are awaiting assembly. At this time, gaps remain in the stairwell. When performing formwork work in these gaps, there is a significant risk of falls from height. Furthermore, during the work gap while waiting for the prefabricated staircases to be installed, personnel cannot directly access the work area via the staircases. Therefore, a staircase structure with high safety performance and strong practicality is needed to solve the aforementioned safety and pedestrian access problems.

[0003] In other words, existing construction staircases are inconvenient to use. Utility Model Content

[0004] This utility model provides a reusable telescopic temporary steel staircase for construction, which can facilitate any construction work in the gaps of the stairwell, and is safe and practical.

[0005] To achieve the above objectives, this utility model provides a reusable telescopic temporary steel staircase for construction, comprising a prefabricated staircase support section, a staircase tread platform section, and an upper guardrail section.

[0006] The stair tread platform section includes a walking staircase and a stair platform disposed at the end of the walking staircase beam;

[0007] The stair support section includes a retractable base, a support frame, and an aluminum formwork installation platform; the support frame surrounds the stair tread platform section and supports it; the retractable base is connected to the bottom of the support frame; and the aluminum formwork installation platform is installed in the middle of the stair support section.

[0008] The upper guardrail section includes guardrail uprights and protective square tubular railings; the guardrail uprights are connected to the stair support section; the protective square tubular railings are connected to the periphery of the guardrail uprights.

[0009] Furthermore, the stair platform includes a stair platform slab and a telescopic platform slab; the stair platform slabs are respectively provided at both ends of the walking staircase, wherein at least one of the stair platform slabs is connected to a telescopic platform slab; the telescopic platform slab is hinged or telescopically connected to the stair platform slab.

[0010] Furthermore, the stair platform also includes a platform connecting plate; the stair tread platform includes two flights of the walking staircase; a platform connecting plate connecting the two stair platform plates is provided at one of the adjacent ends of the two flights of the walking staircase.

[0011] Furthermore, the telescopic platform plates are respectively provided on the stair platform plates at the far ends of the two stair sections of the walking staircase.

[0012] Furthermore, the walking staircase includes two main stair beams and stair treads disposed between the two main stair beams.

[0013] Furthermore, the stair tread platform also includes a detachable stair railing; the detachable stair railing is connected to the main stair beam.

[0014] Furthermore, the upper guardrail section also includes an adjustable guardrail support; the adjustable guardrail support is connected to the guardrail, and the adjustable guardrail support is provided with a plurality of reserved bolt holes spaced apart along the third direction, and the adjustable guardrail support is connected to the guardrail upright by a bolt passing through any of the reserved bolt holes.

[0015] Furthermore, the retractable base includes a retractable base sleeve and a retractable base main beam; the two ends of the retractable base sleeve are respectively provided with the retractable base main beam that is telescopically engaged in a first direction; the retractable base sleeve is connected to the support frame.

[0016] Furthermore, there are multiple retractable bases, which are distributed parallel to each other along the second direction.

[0017] Furthermore, the telescopic platform plate is laid on the telescopic base main beam.

[0018] The beneficial effects of this utility model are as follows: By assembling prefabricated stair support components, stair tread platforms, and upper guardrails to form a temporary steel staircase, and using a telescopic base to erect the temporary steel staircase in the prefabricated staircase opening, it can be extended to accommodate openings of different sizes. This allows for quick installation and disassembly, improving the platform's convenience, flexibility, and turnover rate, thereby enhancing its usability. The temporary steel staircase is easy to transport and hoist, and can be reused multiple times; the staircase is simple to construct and flexible in application. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a reusable and retractable temporary steel staircase for construction according to the present invention.

[0020] Figure 2 for Figure 1 A three-dimensional structural diagram of the supporting part of the central staircase;

[0021] Figure 3 for Figure 1 A three-dimensional structural diagram of the stair tread platform section;

[0022] Figure 4 for Figure 1 A three-dimensional structural diagram of the upper middle section of the guardrail.

[0023] In the diagram: 1-Staircase support section; 11-Retractable base; 111-Retractable base sleeve; 112-Retractable base main beam; 12-Support frame; 121-Support beam; 122-Support upright; 13-Aluminum formwork installation platform;

[0024] 2-Stair tread and landing section; 21-Walking staircase; 211-Staircase main beam; 212-Stair tread; 22-Staircase landing; 221-Staircase landing slab; 222-Landing platform connecting plate; 223-Expansion section landing slab; 23-Removable staircase railing;

[0025] 3-Upper guardrail section; 31-Guardrail upright; 32-Adjustable guardrail support; 33-Guardrail square tube railing. Detailed Implementation

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

[0027] like Figures 1 to 4 As shown, this utility model provides a reusable telescopic temporary steel staircase for construction, including a staircase support part 1, a staircase tread platform part 2, and an upper guardrail part 3. The staircase support part 1 adopts a frame structure and includes a telescopic base 11, a support frame 12, and an aluminum formwork installation platform 13. The staircase tread platform part 2 includes a walking staircase 21, a staircase platform 22, and a detachable staircase railing 23. The upper guardrail part 3 includes guardrail uprights 31, adjustable guardrail supports 32, and guardrail square tube railings 33.

[0028] The upper part of the stair tread platform 2 is detachably equipped with an upper guardrail 3, and the lower part of the stair tread platform 2 is equipped with a retractable base 11. The stair tread platform 2 is surrounded by a support frame 12 and an aluminum formwork installation platform 13.

[0029] In the above configuration, the retractable base 11 is connected to the bottom of the support frame of the stair support part 1 to support the steel staircase, so that the steel staircase can be erected in the prefabricated staircase opening. The retraction allows it to meet different size openings, and it can be quickly installed and disassembled, improving the platform's convenience, flexibility and turnover rate, thereby enhancing its ease of use.

[0030] Specifically, such as Figure 2 As shown, the telescopic base 11 of the stair support part 1 in this embodiment includes a telescopic base sleeve 111 and a telescopic base main beam 112. The telescopic base main beam 112 can be movably inserted into both ends of the telescopic base sleeve 111, thus meeting the size restrictions for transportation and hoisting, making it suitable for stair openings that are narrow at the top and wide at the bottom, with a flexible structure and strong adaptability. There are multiple telescopic bases 11, which are distributed parallel to each other along the second direction. The support frame 12 of the stair support part 1 includes a support crossbeam 121 and support uprights 122. Multiple support uprights 122 are vertically fixed on the telescopic base sleeve 111, and the support crossbeam 121 is connected between the support uprights 122 to form the support frame 12.

[0031] In the above configuration, the aluminum formwork installation operation platform 13 of the stair support part 1 is welded to the support frame 12 of the stair support part 1, and its height is the same as that of the intermediate layer stair platform plate 221 of the stair platform 22, which improves the safety of aluminum formwork installation, reduces the climbing distance of aluminum formwork installation, and improves the convenience of workers' operation.

[0032] The staircase 21 includes two main stair beams 211 and stair treads 212 positioned between them. The stair landing 22 includes a landing slab 221, a landing connecting slab 222, and an expansion joint landing slab 223. Figure 1 , Figure 3 As shown, the stair tread platform section 2 includes two flights of stairs 21. The two flights of stairs 21 are designed as separate units. Each flight of stairs 21 has a stair platform 221 at both ends. At the adjacent ends of the two flights of stairs 21, a platform connecting plate 222 is provided to connect the two stair platform 221s. At the distant ends of the two flights of stairs 21, a telescopic platform 223 connected to the stair platform 221 is provided. The telescopic platform 223 effectively extends the length of the stair platform 22, making the stairs adaptable to different opening sizes and avoiding repeated molding. The telescopic platform 223 can telescopically engage with the stair platform 221, or it can be flipped over. When the telescopic platform 223 extends or flips out, extending the length of the stair platform 22, the telescopic platform 223 can overlap the telescopic base 11.

[0033] In the above configuration, a detachable stair railing 23 is also provided above the corresponding stair main beam 211 of the stair tread platform 2. The railing is made of square tubing, with pre-drilled screw holes and quick-release bolts connecting the uprights. It serves as a safety protection function and can be quickly removed when it affects the aluminum formwork support.

[0034] The upper guardrail section 3 includes guardrail posts 31, adjustable guardrail supports 32, and guardrail square railings 33. The guardrail posts 31 are provided with fixing screw holes and are connected to the telescopic base 11 and support frame 12 of the stair support section 1 by bolts.

[0035] The protective square railing 33 is bolted to the protective railing upright 31 via an adjustable protective railing support 32. The adjustable protective railing support 32 is provided with multiple reserved bolt holes. The adjustable protective railing support 32 is connected to the protective railing upright 31 by a bolt passing through any of the reserved bolt holes. The matching height between the adjustable protective railing support 32 and the protective railing upright 31 can be flexibly adjusted to meet different upper opening sizes, so as to fill the upper working surface opening before the installation of the prefabricated staircase and prevent falls from height.

[0036] The manufacturing process and usage of this utility model are as follows:

[0037] The components of this embodiment are prefabricated in the factory, and the stair support part 1 and the stair tread platform part 2 are welded in the factory. The telescopic base 11 is retracted, and the railing is folded and loaded onto a vehicle. It is hoisted and transported to the construction site to meet the requirements of road traffic and avoid urban road height restrictions. The upper guardrail part 3 is bolted on at the construction site, and the tower crane is used for hoisting. After installation, the two-section walking staircase 21 is hoisted into the construction work surface in two stages. When it is lowered, the telescopic base main beam 112 is pulled out so that the temporary steel staircase frame is erected at the prefabricated staircase opening. The telescopic platform plate 223 is pulled out or flipped to extend the platform plate size and fill the gap.

[0038] After the Nth layer of aluminum formwork is erected and poured, the staircase can be hoisted and moved to the N+1th layer. Specifically, the tower crane will hoist the two sections of the walking staircase 21 out of the opening in two stages. First, it will be hoisted slowly so that the telescopic base 11 is lifted off the ground and then the telescopic base sleeve 111 is retracted. Then, it will continue to be hoisted out of the opening to the N+1th layer slab to meet the turnover requirements of the staircase.

[0039] This reusable and retractable temporary steel staircase has wide application value in the industrial and construction fields, and can improve operational efficiency and ensure the safety of operators.

[0040] In this utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly; for example, "connect" can mean a fixed connection, a detachable connection, or an integral connection.

[0041] "Connected" can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.

Claims

1. A reusable and retractable temporary steel staircase for construction, characterized in that, This includes prefabricated stair support components, stair treads and platforms, and upper guardrails. The stair tread platform section includes a walking staircase and a stair platform disposed at the end of the walking staircase beam; The staircase support component includes a retractable base, a support frame, and an aluminum formwork installation and operation platform. The support frame surrounds the periphery of the stair tread platform portion and is used to support the stair tread platform portion; the retractable base is connected to the bottom of the support frame; the aluminum formwork installation platform is installed in the middle of the stair support portion. The upper guardrail section includes guardrail uprights and protective square tubular railings; the guardrail uprights are connected to the stair support section; the protective square tubular railings are connected to the periphery of the guardrail uprights.

2. The reusable telescopic temporary steel staircase for construction as described in claim 1, characterized in that, The stair platform includes a stair platform slab and a telescopic platform slab; the stair platform slabs are respectively provided at both ends of the walking staircase, and at least one of the stair platform slabs is connected to a telescopic platform slab; the telescopic platform slab is hinged or telescopically connected to the stair platform slab.

3. A reusable telescopic temporary steel staircase for construction as described in claim 2, characterized in that, The stair platform also includes a platform connecting plate; the stair tread platform includes two flights of the walking staircase; a platform connecting plate connecting the two stair platform plates is provided at one of the adjacent ends of the two flights of the walking staircase.

4. A reusable telescopic temporary steel staircase for construction as described in claim 3, characterized in that, The telescopic platform is provided on the stair platform at the far ends of the two stair flights.

5. A reusable telescopic temporary steel staircase for construction as described in claim 1, characterized in that, The staircase includes two main stair beams and stair treads located between the two main stair beams.

6. A reusable telescopic temporary steel staircase for construction as described in claim 5, characterized in that, The stair tread platform also includes a detachable stair railing; the detachable stair railing is connected to the main stair beam.

7. A reusable telescopic temporary steel staircase for construction as described in claim 1, characterized in that, The upper guardrail section also includes an adjustable guardrail support; the adjustable guardrail support is connected to the guardrail, and the adjustable guardrail support is provided with a plurality of reserved bolt holes at intervals along the third direction, and the adjustable guardrail support is connected to the guardrail upright by a bolt passing through any of the reserved bolt holes.

8. A reusable telescopic temporary steel staircase for construction as described in claim 2, characterized in that, The retractable base includes a retractable base sleeve and a retractable base main beam; the retractable base main beam is provided at both ends of the retractable base sleeve, which is telescopically coordinated along a first direction; the retractable base sleeve is connected to the support frame.

9. A reusable telescopic temporary steel staircase for construction as described in claim 8, characterized in that, There are multiple retractable bases, which are distributed parallel to each other along the second direction.

10. A reusable telescopic temporary steel staircase for construction as described in claim 8, characterized in that, The telescopic platform plate is laid on the telescopic base main beam.

Images