Fabricated stair for building construction

Abstract

The utility model belongs to the technical field of construction stairs, and particularly relates to an assembly type stair for building construction, which comprises pedals, a rotating pin is fixedly connected at one corner of a straight part of the bottom side of each pedal, a plurality of pedals are rotatably connected through the rotating pins, the bottom of each pedal is fixedly connected with a group of supporting columns, and the supporting columns are fixedly connected with the bottom of each pedal. Compared with the prior art, the stair has the advantages that the plurality of pedals are movably connected, so that an included angle can be formed between every two pedals, the stair can be erected by being attached to a building with an arc-shaped wall, workers can conveniently conduct construction operation on the arc-shaped wall, and compared with a comparison file, the pedals are not limited by bearing beams, so that the construction efficiency is improved. The number of the pedals can be freely added or reduced according to actual use scenes so as to adjust the erection height of the staircase, and therefore the staircase can adapt to the actual use scenes and is more flexible and changeable.

Description

Technical Field

[0001] The utility model belongs to the technical field of construction stairs, and particularly relates to an assembled stair for building construction. Background Art

[0002] During the building construction process, in order to facilitate the interior top decoration, long-term high-altitude operations are required. To ensure construction safety, stair-type support frames are often used for high-altitude operations. However, the current stair-type support frames have a large structure and cannot be disassembled and assembled, which is inconvenient for transportation and has an unsatisfactory use effect.

[0003] The Chinese patent with the authorization announcement number CN212671302U discloses an assembled stair for small high-rise building construction, which includes a bottom plate and two inclined load-bearing beams. The bottom surface of the bottom plate is provided with self-locking universal wheels, and the upper surface of the bottom plate and the bottom surface of the load-bearing beams are evenly provided with corresponding insertion sleeves. The upper and lower corresponding insertion sleeves are used for detachably inserting support columns to support the load-bearing beams. A plurality of pedals are detachably clamped between the two load-bearing beams, and the pedals are evenly distributed along the length direction of the load-bearing beams. The above patent can be conveniently disassembled and assembled, thus facilitating transportation.

[0004] In actual construction, due to the limitation of its load-bearing beams, the above patent can only erect the stair in one direction, enabling workers to move only in a straight line. However, some buildings have curved walls. When the above patent is applied to this scenario, it is difficult for the above patent to fit the curved walls, resulting in difficulty for workers to construct the curved walls.

[0005] Moreover, due to the limitation of its load-bearing beams, the above patent is difficult to freely increase or decrease the number of pedals and the height of the stair, and it is not flexible enough in actual use scenarios. Summary of the Utility Model

[0006] In order to overcome the deficiencies of the prior art, the technical problem to be solved by the utility model is that by arranging a plurality of pedals to be movably connected, an included angle can be generated between the pedals, so that the stair can be erected to fit the building with a curved wall, facilitating the construction operation of workers on the curved wall. Moreover, compared with the comparative document, there is no limitation of load-bearing beams between the pedals in this patent, and the number of pedals can be freely added or reduced according to the actual use scenario to adjust the erection height of the stair, so that the stair can adapt to the actual use scenario more flexibly and variably.

[0007] In order to achieve the above object, the utility model provides the following technical solution: an assembled stair for building construction, including pedals, a rotating pin is fixedly connected to a corner of the straight part at the bottom side of each pedal, and a plurality of pedals are rotatably connected through the rotating pins. A group of support columns is fixedly connected to the bottom of each pedal.

[0008] At one end of the flat part on the upper side of each pedal, which is far from the rotation pin, an arc-shaped sliding groove is provided. The center of each arc-shaped sliding groove coincides with the center of the rotation pin. At one corner of the flat part at the bottom of each pedal, which is far from the rotation pin, a sliding pin is fixedly connected. Each sliding pin is slidably connected to the corresponding arc-shaped sliding groove.

[0009] A set of connecting heads is fixedly connected to each set of support columns. A set of cross beams is fixedly connected between each set of connecting heads. The bottom of each support column is fixedly connected to a bottom plate.

[0010] Anti-slip grooves are evenly distributed on the flat part on the upper side of each pedal.

[0011] In summary, compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] (1) By arranging multiple pedals to be movably connected, an included angle can be generated between the pedals, so that the stairs can be erected to fit the arc-shaped wall, facilitating the construction operation of workers on the arc-shaped wall.

[0013] (2) Compared with the comparative document, there is no restriction of a bearing beam between the pedals in this patent. The number of pedals can be freely added or reduced according to the actual use scenario to adjust the erection height of the stairs, so that the stairs can adapt to the actual use scenario more flexibly and variably. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the overall bottom structure of the present utility model;

[0016] Figure 3 It is a schematic diagram of the overall state structure of the present utility model;

[0017] Figure 4 It is a schematic diagram of the structure of some parts of the present utility model; DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

[0019] Reference Figures 1-4, A prefabricated staircase for building construction, including treads 22. An arc-shaped chute 23 is provided on the flat part on the upper side of each tread 22. A sliding pin 24 is fixedly connected to a corner of the flat part at the bottom of each tread 22 that is far from the rotation pin 25. Each sliding pin 24 is slidably connected to the corresponding arc-shaped chute 23.

[0020] Reference Figure 1 , A rotation pin 25 is fixedly connected to a corner of the flat part on the bottom side of each tread 22 at one end that is far from the arc-shaped chute 23. The center of each arc-shaped chute 23 coincides with the center of the rotation pin 25. Multiple treads 22 are rotationally connected to each other through the rotation pins 25.

[0021] By arranging multiple treads 22 to be movably connected, an angle can be generated between the treads 22, thereby enabling the staircase to be erected to fit an arc-shaped wall building, facilitating the construction operation of workers on the arc-shaped wall.

[0022] And compared with the comparative document, there is no restriction of a bearing beam between the respective treads 22 in this patent. The number of treads 22 can be freely added or reduced according to the actual use scenario to adjust the erection height of the staircase, so that the staircase can be more flexible and variable to adapt to the actual use scenario.

[0023] Reference Figure 4 , A group of support columns 27 are fixedly connected to the bottom of the tread 22. A group of connection heads 26 are fixedly connected to each group of support columns 27. A group of cross beams 28 are fixedly connected between each group of connection heads 26. The bottom of each support column 27 is fixedly connected to a bottom plate 30.

[0024] Reference Figure 4 , Anti-slip grooves 29 are evenly distributed on the flat part on the upper side of each tread 22.

[0025] In this embodiment, initially, the worker erects this patent at the building wall. The support columns 27 support each tread 22, and the worker can step onto the tread 22 to construct at a higher position of the building wall.

[0026] When the building wall in the construction area is arc-shaped, the operator can pull the tread 22 to rotate the tread 22 around the rotation pin 25. At the same time, the sliding pin 24 slides in the arc-shaped chute 23. The sliding pin 24 and the arc-shaped chute 23 can limit the rotation angle of the tread 22 and ensure the firmness of the connection between the treads 22.

[0027] The rotated tread 22 fits on the arc-shaped wall. When the worker steps onto the tread 22, there is no excessive distance between the worker and the wall, facilitating the worker to construct the arc-shaped wall.

[0028] By setting the cross beam 28, the structural strength of the bottom plate 30 can be improved, and the supporting effect of the support column 27 on the pedal 22 can be ensured. The anti-slip groove 29 can increase the anti-slip effect of the pedal 22 and prevent workers from slipping and causing danger.

[0029] When it is necessary to increase the height of the stairs, only the pedal 22 at the highest position needs to be connected to a new pedal 22 and the support column 27 at the corresponding height. Similarly, when it is necessary to reduce the height, only the pedal 22 and the support column 27 at the highest position need to be removed, enabling the stairs to adapt to the actual use scenario more flexibly.

[0030] As used in the specification and claims, certain terms are used to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. The specification and claims do not use the difference in names as a way to distinguish components, but rather use the difference in functions of components as the criterion for distinction. As mentioned throughout the specification and claims, "comprising" is an open-ended term and should be interpreted as "including but not limited to". "Substantially" means within an acceptable error range. Those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0031] It should be noted that the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a commodity or system including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such commodity or system. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the commodity or system including the said element.

[0032] The above description shows and describes several preferred embodiments of the present application. However, as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be changed within the scope of the application concept described herein through the above teachings or the technology or knowledge in the relevant field. Any changes and variations made by those skilled in the art without departing from the spirit and scope of the present application shall fall within the protection scope of the appended claims of the present application.

Claims

1. An assembled staircase for building construction, characterized in that: The invention comprises a pedal (22), wherein a rotation pin (25) is fixedly connected to a corner of a straight portion on the bottom side of each pedal (22), and a plurality of pedals (22) are rotationally connected to each other via the rotation pin (25), and a group of support columns (27) are fixedly connected to the bottom of each pedal (22).

2. The assembled staircase for building construction according to claim 1, characterized in that: An arc-shaped arc-shaped sliding groove (23) is provided at one end of the straight portion on the upper side of each pedal (22) away from the rotating pin (25), and the center of each arc-shaped sliding groove (23) coincides with the center of the rotating pin (25).

3. The assembled staircase for building construction according to claim 1, characterized in that: A sliding pin (24) is fixedly connected to a corner of the straight bottom portion of each pedal (22) away from the rotating pin (25), and each sliding pin (24) is slidably connected to a corresponding arc-shaped sliding groove (23).

4. The assembled staircase for building construction according to claim 1, characterized in that: A group of connectors (26) is fixedly connected to each group of support columns (27), and a group of crossbeams (28) is fixedly connected between each group of connectors (26).

5. The assembled staircase for building construction according to claim 1, characterized in that: The bottom of each support column (27) is fixedly connected to a bottom plate (30).

6. The assembled staircase for building construction according to claim 1, characterized in that: Anti-slip grooves (29) are evenly distributed on the straight portion on the upper side of each pedal (22).

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