Multifunctional scissor prefabricated stair construction auxiliary operation platform

Abstract

The utility model discloses a multifunctional scissor prefabricated stair construction auxiliary operation platform, and belongs to the technical field of building construction auxiliary devices. The prefabricated staircase structure comprises floor slabs located in a prefabricated building staircase and a pair of scissor-shaped prefabricated staircases. The upper end side and the lower end side of the prefabricated stair are in lap joint with floor slabs of different floors correspondingly. A platform bracket is detachably mounted on the step surface of the prefabricated stair; the platform support is vertically arranged at a staircase hole. A plurality of working laminates are mounted on the platform bracket, and an auxiliary ladder stand is also mounted on the platform bracket; the top end of the auxiliary crawling ladder is arranged close to the working layer plate; a plurality of lifting lugs are arranged on the platform bracket; the platform support is further provided with a wall connecting piece. The problems that an effective platform device is lacked when a prefabricated stair is installed at present, installation is inconvenient, and protection of a staircase hole is poor are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction auxiliary devices, in particular to a multifunctional scissors prefabricated staircase construction auxiliary operation platform. Background Art

[0002] With the continuous advancement of construction technology, prefabricated buildings have gradually become the development trend in my country's current construction field. Prefabricated buildings transfer a large number of on-site operations in traditional construction methods to factories. Building components and accessories (such as floor slabs, wall panels, stairs, balconies, etc.) are processed and manufactured in factories, transported to construction sites, and assembled and installed on site through reliable connection methods. It is increasingly popular among people due to its fast construction speed, green and environmental protection, labor saving, and high safety.

[0003] Because the prefabricated stairs of prefabricated buildings need to be hoisted after the main structure of the floor is completed, the installation progress of the prefabricated stairs is generally later than the construction progress of the main structure. In the stairwell, there is usually a 3-5 meter fall height difference between the aluminum formwork working surface and the lower structure surface, and there is always an inertia problem of inadequate protection of edges and openings. Secondly, because the prefabricated stairs cannot be hoisted between the aluminum formwork working surface and the lower structure surface, the construction workers usually need to pass through the formwork support and the horseway on the external frame or climbing frame to go up and down the aluminum film working surface, which is inconvenient to go up and down the working surface.

[0004] In order to solve the above-mentioned safety management difficulties, there is an urgent need for an intrinsically safe protection device that is easy to construct and cost-effective. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a multifunctional scissors prefabricated stair construction auxiliary operation platform to solve the problems of lack of effective platform device when installing prefabricated stairs, inconvenient installation, poor protection of stair openings, etc.

[0006] In order to solve the above problems, the utility model provides the following technical solutions:

[0007] A multifunctional scissor prefabricated staircase construction auxiliary operation platform; it comprises a floor located in the stairwell of an assembled building and a pair of scissor-shaped prefabricated stairs; the upper and lower end sides of the prefabricated stairs are respectively overlapped on the floor slabs of different floors; a platform bracket is detachably installed on the step surface of the prefabricated staircase; the platform bracket is vertically arranged at the stairwell opening; a plurality of working floor plates are installed on the platform bracket, and an auxiliary ladder is also installed on the platform bracket; the top end of the auxiliary ladder is arranged close to the working floor plate; a plurality of lifting ears are arranged on the platform bracket; and a wall connecting piece is also arranged on the platform bracket.

[0008] Preferably, a partition beam is provided between the floor slabs on both sides of the corresponding stairwell opening; the two prefabricated staircases and the platform brackets on the corresponding prefabricated staircases are separated by the partition beam.

[0009] Preferably, the platform support includes several groups of vertical rods; the length difference between different groups of vertical rods is consistent with the height difference between the steps on the corresponding prefabricated stairs; and several horizontal rods and reinforcing diagonal rods are also arranged on the vertical rods.

[0010] Preferably, the working layer plate is a rectangular flat plate member arranged parallel to the floor slab, and the lengths of the various working layer plates are not exactly the same; the working layer plate includes a fixed plate fixedly connected to the platform bracket, and a movable plate detachably connected to the platform bracket; a number of positioning blocks are arranged on the side of the movable plate, and the movable plate is overlapped on the platform bracket through the positioning blocks.

[0011] Preferably, the auxiliary ladder includes a first ladder and a second ladder; both sides of the first ladder are respectively arranged in the middle position between two working layers connected up and down; one end of the second ladder is arranged at the edge position of the platform bracket, and the other end is arranged close to the working layer.

[0012] Preferably, the lifting ears are arranged on the top surface of the platform bracket near the four corners.

[0013] Preferably, the wall connecting member comprises a clamp connected to the platform bracket, and a positioning clamp matched with the wall embedded member is arranged on the other side of the clamp.

[0014] Beneficial effects of the utility model:

[0015] The utility model can solve the inertia problem of inadequate protection of the edges and openings of prefabricated staircases in assembled buildings, and can provide a protective platform for reinforcing the floor working surface around the staircase. At the same time, a built-in auxiliary staircase serves as a passage for construction workers to go up and down the working surface, combining the three functions into one. In addition, the utility model has a simple structure, can be used cyclically, and saves costs. At the same time, it can bring higher safety benefits, effectively reduce the risk of falling from heights caused by inadequate protection of the openings of the staircases in assembled buildings, and avoid the safety risks caused by construction workers illegally performing aluminum mold reinforcement operations at heights when there is no protective platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model in an embodiment;

[0017] Figure 2 Mode Figure 1 A schematic diagram of the device from another perspective;

[0018] Figure 3 is a schematic diagram of the structure of a single prefabricated staircase and a corresponding platform support in this embodiment;

[0019] Figure 4 yes Figure 3 A schematic diagram of the device in another viewing angle;

[0020] Figure 5 Schematic diagram of the structure of the working layer in this embodiment;

[0021] Figure 6 1 is a schematic diagram of the structure of the wall connecting member and the wall embedded member in this embodiment;

[0022] Explanation of the reference numerals in the accompanying drawings: 1. Floor slab, 2. Prefabricated stairs, 3. Platform bracket, 3A. Vertical pole, 3B. Horizontal pole, 3C. Reinforced diagonal pole, 4. Working layer plate, 5. Auxiliary ladder, 5A. First ladder, 5B. Second ladder, 6. Lifting ear, 7. Partition beam, 8. Positioning block, 9. Wall connecting piece. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] Example:

[0025] Reference Figures 1 to 6 The present embodiment provides a multifunctional scissor prefabricated staircase construction auxiliary operation platform, which includes a floor 1 located in the stairwell of an assembled building and a pair of scissor-shaped prefabricated stairs 2; the upper and lower ends of the prefabricated stairs 2 are respectively overlapped on the floor 1 of different floors; a platform bracket 3 is detachably installed on the step surface of the prefabricated staircase 2; the platform bracket 3 is arranged vertically at the opening of the stairwell; a plurality of working floor plates 4 are installed on the platform bracket 3, and an auxiliary ladder 5 is also installed on the platform bracket 3; the top of the auxiliary ladder 5 is arranged close to the working floor plate 4; a plurality of lifting ears 6 are arranged on the platform bracket 3; and a wall connecting piece 9 is also arranged on the platform bracket 3. The prefabricated stairs in the present embodiment are concrete prefabricated stairs,

[0026] A partition beam 7 is further arranged between the floor slabs 1 on both sides of the corresponding stair opening; the two prefabricated staircases 2 and the platform brackets 3 on the corresponding prefabricated staircases 2 are separated by the partition beam 7 .

[0027] The platform support 3 includes a plurality of groups of uprights 3A; the length difference between different groups of uprights 3 is consistent with the height difference between the steps of the uprights 3 on the corresponding prefabricated staircase 2; and a plurality of horizontal bars 3B and reinforcing diagonal bars 3C are also arranged on the uprights 3. In this embodiment, the platform support is welded with square steel pipes, and the base of each upright is located on the prefabricated staircase on the lower floor;

[0028] The working layer plate 4 is a rectangular flat plate member arranged parallel to the floor plate 1, and the lengths of the working layer plates 4 are not exactly the same; the working layer plate 4 includes a fixed plate fixedly connected to the platform bracket 3, and a movable plate detachably connected to the platform bracket 3; a plurality of positioning blocks 8 are arranged on the side of the movable plate, and the movable plate is overlapped on the platform bracket 3 through the positioning blocks 8. In terms of actual work, the fixed plate includes a long plate consistent with the height of each floor plate, and a single-side plate arranged between the upper and lower floor plates, and the height from the lower step surface meets the movement requirements of the construction personnel, while the movable plate is generally arranged on the platform bracket whose height from the lower step surface cannot meet the movement requirements of the construction personnel, so it is necessary to use the movable plate to expand the activity space.

[0029] The auxiliary ladder 5 includes a first ladder 5A and a second ladder 5B; the two sides of the first ladder 5A are respectively arranged in the middle position between two working layers 4 connected up and down; one end of the second ladder 5B is arranged at the edge position of the platform bracket 3, and the other end is arranged close to the working layer 4.

[0030] The lifting ears 6 are arranged on the top surface of the platform support 3 near the four corners.

[0031] The wall connecting member 9 includes a clamp connected to the platform bracket 3, and a positioning clamp matched with the wall embedded member is arranged on the other side of the clamp. The use of the wall connecting member is conducive to increasing the stability of the protection platform and reducing the shaking during use and passage.

[0032] When installing the utility model device in this embodiment, the platform bracket is first welded in a flat site at the construction site, and then the protective platform is hoisted to the installation floor as a whole using a tower crane. Before formal hoisting, a trial hoisting should be carried out to hoist the platform body and keep it about 20 cm off the ground to check whether the binding is firm, whether the hoisting is stable, whether there is shaking of the various structural parts of the protective platform, and whether there are sundries stored on the platform;

[0033] When hoisting to the installation floor, construction workers use traction ropes to slowly pull the protection platform to the predetermined installation location, ensuring that the foundation of each vertical column is located on the prefabricated stairs on the lower floor. After the hoisting is completed, the lifting points are released and the wall connectors are connected to the embedded parts on the wall.

[0034] When in use, construction workers can directly stand on the working layer to operate. If the construction content involves the areas on the upper and lower sides of the movable board, the movable board needs to be placed in advance. When the construction workers need to work on work surfaces at different heights, they only need to open the movable board at the corresponding position of the upper layer first, and then they can move up and down through the auxiliary ladder; when there are no construction workers passing, the working layer will be covered and closed again to meet the safety protection needs of the stair opening and avoid the risk of falling from heights.

Claims

1. A multifunctional scissor-shaped prefabricated staircase construction auxiliary operation platform, comprising a floor slab (1) located in a stairwell of an assembled building and a pair of scissor-shaped prefabricated stairs (2); the upper and lower ends of the prefabricated stairs (2) are respectively overlapped on the floor slabs (1) of different floors; the characteristics are: A platform bracket (3) is detachably mounted on the step surface of the prefabricated staircase (2); the platform bracket (3) is arranged vertically at the staircase opening; a plurality of working layer plates (4) are mounted on the platform bracket (3), and an auxiliary ladder (5) is also mounted on the platform bracket (3); the top end of the auxiliary ladder (5) is arranged close to the working layer plate (4); a plurality of lifting ears (6) are arranged on the platform bracket (3); and a wall connecting member (9) is also arranged on the platform bracket (3).

2. According to claim 1, a multifunctional scissors prefabricated staircase construction auxiliary operation platform is characterized by: A partition beam (7) is also provided between the floor slabs (1) located on both sides of the corresponding stairwell opening; the two prefabricated staircases (2) and the platform brackets (3) on the corresponding prefabricated staircases (2) are separated by the partition beam (7).

3. According to claim 1, a multifunctional scissors prefabricated staircase construction auxiliary operation platform is characterized by: The platform support (3) comprises a plurality of groups of vertical rods (3A); the length difference between different groups of vertical rods (3A) is consistent with the height difference between the vertical rods (3A) on the corresponding prefabricated stairs (2); and a plurality of horizontal rods (3B) and reinforcing diagonal rods (3C) are also arranged on the vertical rods (3A).

4. The multifunctional scissors prefabricated stair construction auxiliary operation platform according to claim 1 is characterized by: The working layer plate (4) is a rectangular flat plate component arranged parallel to the floor plate (1), and the lengths of the various working layer plates (4) are not completely the same; the working layer plate (4) comprises a fixed plate fixedly connected to the platform bracket (3), and a movable plate detachably connected to the platform bracket (3); a plurality of positioning blocks (8) are arranged on the side of the movable plate, and the movable plate is overlapped on the platform bracket (3) via the positioning blocks (8).

5. The multifunctional scissors prefabricated staircase construction auxiliary operation platform according to claim 1 is characterized by: The auxiliary ladder (5) comprises a first ladder (5A) and a second ladder (5B); both sides of the first ladder (5A) are respectively arranged at a middle position between two upper and lower connected working layers (4); one end of the second ladder (5B) is arranged at an edge position of the platform support (3), and the other end is arranged close to the working layer (4).

6. The multifunctional scissors prefabricated stair construction auxiliary operation platform according to claim 1 is characterized by: The lifting ears (6) are arranged on the top surface of the platform bracket (3) at positions close to the four corners.

7. The multifunctional scissors prefabricated stair construction auxiliary operation platform according to claim 1 is characterized by: The wall connecting member (9) comprises a clamp connected to the platform bracket (3), and a positioning clamp head matching the wall embedded member is arranged on the other side of the clamp.

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