Modularized temporary construction stair platform structure

Abstract

The utility model relates to the technical field of temporary construction stairs, and discloses a modular temporary construction stair platform structure, which comprises a construction stair and a safety platform, the construction stair comprises two stair oblique beam channel steels, and a plurality of step steel plates are uniformly mounted on the sides, close to each other, of the two stair oblique beam channel steels; limiting plates are welded to the left sides of the sides, close to each other, of the two stair oblique beam steel channels. According to the modularized temporary construction stair platform structure, the influence of erecting a scaffold at the position of a stair by an operator before a prefabricated stair is installed on construction of a working face can be avoided, the convenience of construction operation of the operator is improved, and the safety and civilization of a site are also improved; and after the prefabricated staircase is installed, the prefabricated staircase is directly hoisted to the position of the staircase, repeated erection of the scaffold staircase is avoided, and the site construction time is saved.

Description

Technical Field

[0001] This utility model relates to the field of temporary construction staircase technology, specifically a modular temporary construction staircase platform structure. Background Technology

[0002] With the continuous development of society, prefabricated building technology has been widely promoted and applied in construction projects, improving project construction efficiency, enhancing project controllability, and reducing project costs. Prefabricated building components include prefabricated composite floor slabs, prefabricated stairs, and prefabricated exterior walls. As a major component of prefabricated components, prefabricated stairs are widely used in prefabricated components. The installation time of prefabricated stairs is after the concrete pouring of the structural layer is completed. Before the concrete pouring, there is a lack of construction passage between the formwork construction layer and the concrete structural layer at the installation location of the prefabricated stairs. Usually, a special passage for stairs is erected on scaffolding or on the external scaffolding at the location of the prefabricated stairs.

[0003] This method of erecting scaffolding or external scaffolding to create dedicated stairwell passages at precast stair sections has the following main disadvantages:

[0004] 1. The erection process of the special passageway for stairs using coupler-type steel pipe scaffolding is complicated. The erection location is at height, which poses safety hazards. It also conflicts with the installation of prefabricated stair components, requiring repeated dismantling and erection. Moreover, the special passageway for stairs using steel pipe scaffolding is not aesthetically pleasing and affects safe, civilized and standardized construction.

[0005] 2. Buildings using prefabricated components are mostly high-rise buildings. The external scaffolding is erected layer by layer with dedicated staircases and passageways, which affects the progress of the external scaffolding and increases the safety hazards for workers.

[0006] 3. The scaffolding erection project involves a large amount of work, requires a large labor force, and has high scaffolding rental costs. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a modular temporary construction staircase platform structure to solve the problems mentioned in the background.

[0008] This utility model provides the following technical solution: a modular temporary construction staircase platform structure, including a construction staircase and a safety platform. The construction staircase includes staircase inclined beam channel steel, there are two staircase inclined beam channel steels, and multiple step steel plates are evenly installed on the side of the two staircase inclined beam channel steels that are close to each other. A limit plate is welded to the left side of the side of the two staircase inclined beam channel steels that are close to each other. The top surface of the limit plate is provided with mounting holes on both sides, and a first bolt is provided in the mounting holes.

[0009] The safety platform includes four uprights arranged in a rectangular shape. Multiple platform main beams are welded horizontally to the top of the four uprights, and multiple platform crossbeams are welded longitudinally to the top of the four uprights. Platform steel plates are fixedly installed on the top of the platform crossbeams and platform main beams.

[0010] As a preferred embodiment of this utility model, handrails are fixedly installed on the top of the two inclined steel stair beams, and the handrails are made of square tubing.

[0011] As a preferred embodiment of this utility model, a bottom support plate is welded to the bottom right side of both of the staircase inclined beam channel steels.

[0012] As a preferred technical solution of this utility model, the limiting plate is inclined on the side away from the stair beam channel steel, and the inner wall of the mounting holes opened on both sides of the top surface of the limiting plate is provided with threads that are compatible with the first bolt.

[0013] As a preferred technical solution of this utility model, a lower crossbeam is welded to the bottom of one side of the upright. The lower crossbeam is made of square tube and a telescopic beam is provided inside the tube. One side of the bottom surface of the telescopic beam is convex, and the bottom surface of the convex beam is on the same horizontal line as the bottom surface of the lower crossbeam.

[0014] As a preferred technical solution of this utility model, the telescopic beam has a threaded hole on the top of the protrusion at the bottom, and a matching second bolt is provided in the threaded hole.

[0015] As a preferred technical solution of this utility model, two nuts are welded side by side on one side of the top surface of the lower crossbeam, and a matching limiting bolt is provided in the two nuts. The bottom of the limiting bolt penetrates and extends into the interior of the lower crossbeam, and the bottom end of the limiting bolt contacts the top surface of the telescopic beam.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] This modular temporary construction staircase platform structure avoids the impact on the construction work surface caused by workers erecting scaffolding at the staircase location before the installation of prefabricated stairs, increases the convenience of construction work for workers, and also improves on-site safety and civility.

[0018] This technology adds a construction platform to the side of the staircase, fills the staircase opening, reduces safety hazards, and ensures the safety of workers.

[0019] After the prefabricated stairs are installed, they are directly hoisted to the stairwell location, avoiding the need to repeatedly erect scaffolding stairs and saving on-site construction time. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the lower crossbeam of this utility model;

[0022] Figure 3 This is a cross-sectional view of the limiting plate of this utility model.

[0023] In the diagram: 1. Staircase inclined beam channel steel; 101. Handrail; 102. Limiting plate; 103. Step steel plate; 104. Bottom support plate; 105. First bolt; 2. Upright; 201. Platform main beam; 202. Platform crossbeam; 203. Lower crossbeam; 204. Platform steel plate; 205. Limiting bolt; 206. Nut; 207. Second bolt; 208. Telescopic beam. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 , Figure 2 and Figure 3 A modular temporary construction staircase platform structure includes a construction staircase and a safety platform. The construction staircase includes two inclined channel steel beams 1, placed parallel to each other. Multiple step steel plates 103 are evenly welded to the side of the two beams that are close to each other. The step steel plates 103 are evenly spaced, and the top surface of the step steel plates 103 can be provided with anti-slip textures to provide a stable stepping surface for construction workers. A limiting plate 102 is welded to the left side of the side of the two inclined channel steel beams 1 that is close to each other. The side of the limiting plate 102 away from the inclined channel steel beams 1 is inclined to facilitate walking and prevent tripping. Mounting holes are opened on both sides of the top surface of the limiting plate 102. The inner wall of the mounting hole is provided with threads that are compatible with the first bolt 105. A through hole that can accommodate the first bolt 105 can be opened on the corresponding floor of the second floor. The connection with the second floor can be achieved through the first bolt 105, further reinforcing the connection with the second floor. The top of the two stair inclined beam channel steel 1 is fixedly installed with handrails 101 made of square tubes to provide grip support for construction personnel and ensure the safety of going up and down the stairs. At the same time, the bottom right side of the two stair inclined beam channel steel 1 is welded with a bottom support plate 104 to enhance the overall stability of the stairs.

[0026] In the safety platform section, four uprights 2 are arranged in a rectangle. Multiple platform main beams 201 are welded horizontally to the top of the four uprights 2, and multiple platform crossbeams 202 are welded vertically. Platform steel plates 204 are fixedly installed on the tops of the platform crossbeams 202 and the platform main beams 201 by welding, forming a flat and sturdy platform working surface. A lower crossbeam 203 made of square tubing is welded to the bottom of one side of each upright 2. A telescopic beam 208 is installed inside the lower crossbeam 203, allowing it to slide within the lower crossbeam 203, further enhancing the stability of the uprights 2. One side of the bottom surface of the telescopic beam 208 is convex, and the bottom surface of the convex beam is on the same horizontal line as the bottom surface of the lower crossbeam 203, ensuring the platform... To ensure stable placement, the telescopic beam 208 has a threaded hole on its protruding top at the bottom. A matching second bolt 207 is installed in the threaded hole, and a through hole to accommodate the second bolt 207 is provided at a corresponding position on the ground. The second bolt 207 can fix the position of the telescopic beam 208 on the ground. Two nuts 206 are welded side by side to one side of the top surface of the lower crossbeam 203. Matching limiting bolts 205 are installed in the two nuts 206. The bottom of the limiting bolts 205 penetrates and extends into the interior of the lower crossbeam 203, and the bottom end of the limiting bolts 205 contacts the top surface of the telescopic beam 208, further restricting the movement of the telescopic beam 208 and making the platform structure stable.

[0027] Example 2: Please refer to Figure 1 , Figure 2 and Figure 3 In another specific embodiment, the inclined beam channel steel 1 of the construction staircase still adopts two structures placed close to each other. The spacing and number of welded steel plates 103 are adjusted according to the actual construction height and step requirements. The tilt angle of the limiting plate 102 can be finely adjusted according to the connection and cooperation with other components. The specifications of the first bolt 105 in the mounting hole can be selected according to the connection strength requirements. In addition to being made of square tube, the handrail 101 can also be treated with anti-slip treatment on the surface of the square tube to improve the grip safety of construction personnel. The bottom support plate 104 can increase the contact area with the ground according to the ground conditions on site, such as by welding an additional pad at the bottom of the support plate.

[0028] In the safety platform section, the spacing of the four uprights 2 arranged in a rectangle can be adjusted according to the platform's load-bearing requirements and space constraints. The number and position of welds on the platform's main beam 201 and platform crossbeam 202 can be optimized according to the platform's size and load-bearing requirements. In addition to welding, the platform steel plate 204 can also be connected by bolts for easy maintenance and replacement. The telescopic beam 208 inside the lower crossbeam 203 can have its length adjusted as needed. The specifications of the second bolt 207 and the limiting bolt 205 can be selected according to the fixing requirements of the telescopic beam 208. At the same time, anti-rust paint can be applied to the bolt surface to extend its service life.

[0029] Example 3: Please refer to Figure 1 , Figure 2 and Figure 3 This modular temporary construction stair platform structure can be installed at the stair opening in prefabricated buildings for construction workers to go up and down the formwork to install floor slabs.

[0030] The implementation principle of the modular temporary construction staircase platform structure is as follows:

[0031] Modular temporary construction stair platform structures can be fabricated on-site or in a factory, and connected by welding or other methods. They consist of several parts, including uprights 2, platform main beams 201, step steel plates 103, platform steel plates 204, and handrails 101. Galvanized materials can be used, and after welding, touch-up painting and rust prevention are performed.

[0032] After the modular temporary construction staircase platform structure is fabricated and the concrete is poured, and the precast staircase components are installed, it is hoisted to the installation position by a tower crane. This ensures that it will not collide with the structure and buildings above the floor, and also avoids the structural formwork and formwork reinforcement construction areas. Once installed in place, it can be put into use for construction personnel to go up and down the formwork to install the floor slabs. After the concrete pouring of the working layer is completed, the staircase is hoisted away from the staircase opening before the precast staircase is installed. After the precast staircase is installed, it is hoisted back to the staircase position on the same floor for reuse.

[0033] Implementation results: This technology can avoid the impact on the construction of the work surface caused by workers erecting scaffolding at the stair location before the installation of prefabricated stairs, which increases the convenience of construction work for workers and also improves the safety and civility of the site.

[0034] This technology adds a construction platform to the side of the staircase, fills the staircase opening, reduces safety hazards, and ensures the safety of workers.

[0035] After the prefabricated stairs are installed, they are directly hoisted to the stairwell location, avoiding the need to repeatedly erect scaffolding stairs and saving on-site construction time.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular temporary construction staircase platform structure, comprising a construction staircase and a safety platform, characterized in that: The construction staircase includes staircase inclined beam channel steel (1), there are two staircase inclined beam channel steel (1), and multiple step steel plates (103) are evenly installed on the side of the two staircase inclined beam channel steel (1) that are close to each other. A limit plate (102) is welded to the left side of the side of the two staircase inclined beam channel steel (1) that are close to each other. The limit plate (102) has mounting holes on both sides of its top surface, and a first bolt (105) is installed in the mounting holes. The safety platform includes four uprights (2), which are arranged in a rectangular shape. Multiple platform main beams (201) are welded horizontally to the top of the four uprights (2), and multiple platform crossbeams (202) are welded longitudinally to the top of the four uprights (2). Platform steel plates (204) are fixedly installed on the top of the platform crossbeams (202) and the platform main beams (201).

2. The modular temporary construction staircase platform structure according to claim 1, characterized in that: Handrails (101) are fixedly installed on the top of the two inclined steel channel beams (1) of the staircase. The handrails (101) are made of square tubing.

3. The modular temporary construction staircase platform structure according to claim 1, characterized in that: Bottom support plates (104) are welded to the bottom right side of both of the aforementioned stair inclined beam channel steel (1).

4. A modular temporary construction staircase platform structure according to claim 1, characterized in that: The limiting plate (102) is inclined on the side away from the stair beam channel steel (1), and the inner wall of the mounting holes on both sides of the top surface of the limiting plate (102) is provided with threads that are compatible with the first bolt (105).

5. A modular temporary construction staircase platform structure according to claim 1, characterized in that: A lower crossbeam (203) is welded to the bottom of one side of the upright (2). The lower crossbeam (203) is made of square tube and a telescopic beam (208) is installed inside the tube of the lower crossbeam (203). One side of the bottom surface of the telescopic beam (208) is convex and the bottom surface of the convex beam is on the same horizontal line as the bottom surface of the lower crossbeam (203).

6. A modular temporary construction staircase platform structure according to claim 5, characterized in that: The telescopic beam (208) has a threaded hole on the top of the protrusion at the bottom, and a matching second bolt (207) is provided in the threaded hole.

7. A modular temporary construction staircase platform structure according to claim 5, characterized in that: Two nuts (206) are welded side by side on one side of the top surface of the lower crossbeam (203), and a matching limiting bolt (205) is provided in the two nuts (206). The bottom of the limiting bolt (205) penetrates and extends into the interior of the lower crossbeam (203), and the bottom end of the limiting bolt (205) contacts the top surface of the telescopic beam (208).

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