A building construction staircase

Abstract

This utility model provides a construction staircase, belonging to the field of building engineering technology. It includes a central platform with a supporting frame at its lower end. Along the length of one side of the central platform, a lower staircase unit and an upper staircase unit are sequentially arranged. The lower staircase unit has a lower connecting platform at its lower end, and the upper staircase unit has an upper connecting platform at its upper end. The lower staircase unit includes stair treads, with a connecting rod 1 and a connecting rod 2 hinged to both sides of each tread. Connecting rods 1 and 2 on the same side are parallel, with the upper ends of both connecting rods 1 hinged to the central platform and the lower ends of both connecting rods 1 hinged to the lower connecting platform. The advantages of this utility model are that it allows for flexible adjustment of the overall height, adapting to construction sites with different building heights, and meeting the requirements of energy conservation, emission reduction, and multiple reuse.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a building construction staircase. Background Technology

[0002] With the advancement of building construction technology, the use of prefabricated components in housing construction projects is increasing, and with the development of prefabricated buildings, construction methods have undergone tremendous changes.

[0003] Currently, in prefabricated building construction, because the exterior walls are made of precast shear walls, it's impossible to drill holes in them during later construction stages. Therefore, it's impossible to build cantilevered scaffolding on the exterior walls as temporary passageways for construction workers and unloading platforms. Furthermore, since precast staircases are installed after the overall floor structure is completed, hoisting them to their designated positions, using precast staircases after eliminating external scaffolding as a construction access method would deprive construction workers of access to the next floor, thus hindering the normal progress of construction.

[0004] Therefore, existing construction sites typically erect temporary staircases made of steel pipes and fasteners between two floors to serve as temporary access routes for construction workers to reach the upper floor during prefabricated building construction, thus solving the personnel access problem before the installation of prefabricated stairs. However, existing temporary staircases still have certain drawbacks: they are often designed according to the actual construction conditions and have a fixed height, making it difficult to reuse them and resulting in some resource waste. Utility Model Content

[0005] The purpose of this utility model is to address the problems of fixed height and difficulty in reuse of temporary staircases used on existing construction sites, and to propose and design a construction staircase that can flexibly adjust its overall height to solve the above-mentioned technical problems and meet the requirements of energy conservation, emission reduction and multiple reuse.

[0006] To achieve the above objectives, the present invention provides the following solution: a construction staircase, comprising a middle platform, a support frame 1 at the lower end of the middle platform, a lower staircase unit and an upper staircase unit sequentially arranged along the length of one side of the middle platform, a lower connecting platform at the lower end of the lower staircase unit, and an upper connecting platform at the upper end of the upper staircase unit; the lower staircase unit includes stair treads, and a connecting rod 1 and a connecting rod 2 are hinged to both sides of the stair treads, with the connecting rod 1 and connecting rod 2 on the same side arranged in parallel, and the upper ends of the two connecting rods 1 are hinged to the middle platform, and the lower ends of the two connecting rods 1 are hinged to the lower connecting platform. Since the lower stair unit in this utility model adopts a structure similar to a quadrilateral connecting rod, when it supports the middle platform on the ground or the middle platform of the construction staircase of the lower building, it can adjust the slope of the lower stair unit by dragging the lower overlapping platform, thereby adjusting the height between the lower overlapping platform and the middle platform, so that the height of the entire construction staircase can be adapted to the height of the building to which it is applied, and achieve the purpose of secondary reuse, energy saving and emission reduction.

[0007] Furthermore, both the upper and lower overlapping platforms are equipped with anchor bolt mounting holes, and the anchor bolts passing through these mounting holes can be used to install the staircases on the lower and upper floor slabs respectively, thereby enabling the installation of the entire building construction staircase between adjacent floor slabs.

[0008] Furthermore, at least two connection holes are provided at the end of the second connecting rod along the length direction. After the fastener passes through the corresponding connection hole, it is connected to the intermediate platform or the lower overlapping platform to realize the connection between the second connecting rod and the intermediate platform or the lower overlapping platform. The fastener is preferably a locking bolt or a pin.

[0009] Furthermore, a protective railing is installed around the intermediate platform to protect construction workers at the platform.

[0010] Furthermore, guardrails are installed around both the upper and lower connecting platforms to protect construction workers.

[0011] Furthermore, the structure of the lower stair unit is the same as that of the upper stair unit, and it also has the feature of adjustable slope, thus making the overall height of the construction staircase of the entire building have a wider range of adjustment.

[0012] As can be seen from the above technical solutions, this utility model has the following advantages: Since both the lower stair unit and the upper stair unit in this utility model adopt a structure similar to a quadrilateral connecting rod, when the middle platform is supported on the ground or the middle platform of the construction staircase of the lower building, the slope of the lower stair unit can be adjusted by dragging the lower connecting platform, and the slope of the upper stair unit can be adjusted by dragging the upper connecting platform, thereby adjusting the height between the lower connecting platform and the upper connecting platform, so that the height of the entire construction staircase can be adapted to the height of the building to which it is applied, so as to achieve the purpose of secondary reuse, energy saving and emission reduction. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a structural schematic diagram of a specific embodiment of the present utility model (the protective railing is not shown).

[0015] In the diagram: 1. Lower connecting platform; 2. Link 2; 3. Link 1; 4. Stair tread; 5. Support frame; 6. Intermediate platform; 7. Upper stair unit; 8. Upper connecting platform. Detailed Implementation

[0016] 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.

[0017] like Figure 1 As shown, this utility model provides a building construction staircase, which includes a lower connecting platform 1, a middle platform 6, an upper connecting platform 8, a lower staircase unit erected between the lower connecting platform 1 and the middle platform 6, and an upper staircase unit 7 erected between the upper connecting platform 8 and the middle platform 6.

[0018] The lower overlapping platform 1 and the upper overlapping platform 8 are respectively erected on the lower and upper floor slabs of two adjacent floors. Both the lower overlapping platform 1 and the upper overlapping platform 8 can be fixed using conventional detachable methods such as anchor bolts. Protective railings are installed around the upper overlapping platform 8 and the lower overlapping platform to protect construction workers. The intermediate platform 6 is erected on the ground or at the intermediate platform of the lower building's construction staircase via a support frame 5 installed below it. The support frame 5 can also be fixed using anchor bolts. A protective railing can be installed around the intermediate platform 6 to protect construction workers at the intermediate platform 6.

[0019] The structure of the lower stair unit is the same as that of the upper stair unit 7, and the middle platform 6 is set at both ends. Specifically, taking the lower stair unit as an example, it includes multiple parallel stair treads 4. Each side of the stair tread 4 is hinged with a connecting rod 3 and a connecting rod 2. The connecting rods 3 and 2 on the same side are parallel to each other. The upper ends of the two connecting rods 3 are hinged to the middle platform 6 through hinge pins, and the lower ends of the two connecting rods 3 are hinged to the lower connecting platform 1 through hinge pins. Since both the lower stair unit and the upper stair unit 7 in this utility model adopt a structure similar to a quadrilateral connecting rod, when the middle platform 6 is supported on the ground or at the middle platform 6 of the construction staircase of the lower building, the slope of the lower stair unit can be adjusted by dragging the lower overlapping platform 1, and the slope of the upper stair unit 7 can be adjusted by dragging the upper overlapping platform 8. In turn, the height between the lower overlapping platform 1 and the upper overlapping platform 8 can be adjusted, so that the height of the entire construction staircase can be adapted to the height of the building to which it is applied, so as to achieve the purpose of secondary reuse, energy saving and emission reduction.

[0020] Furthermore, as a preferred embodiment, this invention can also provide at least two connecting holes along the length direction at both ends of the connecting rod 2 in the lower stair unit, and connect both ends of the connecting rod 2 to the intermediate platform 6 and the lower overlapping platform 1 respectively by fasteners such as bolts passing through the corresponding connecting holes and components such as auxiliary connecting plates, so as to realize the connection between the connecting rod 2 and the intermediate platform 6 and the lower overlapping platform 1, thereby improving the stability of the lower stair unit. In the upper stair unit 7, at least two connecting holes are provided along the length direction at both ends of the connecting rod 2, and connect both ends of the connecting rod 2 to the intermediate platform 6 and the upper overlapping platform 8 respectively by fasteners such as bolts passing through the corresponding connecting holes, so as to realize the connection between the connecting rod 2 and the intermediate platform 6 and the upper overlapping platform 8, thereby improving the stability of the upper stair unit 7.

[0021] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0022] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A construction staircase, comprising an intermediate platform, a supporting frame at the lower end of the intermediate platform, and a lower staircase unit and an upper staircase unit sequentially arranged along the length of one side of the intermediate platform, wherein a lower connecting platform is provided at the lower end of the lower staircase unit, and an upper connecting platform is provided at the upper end of the upper staircase unit; characterized in that, The lower stair unit includes stair treads, with a connecting rod 1 and a connecting rod 2 hinged to both sides of each stair tread. The connecting rods 1 and 2 on the same side are arranged in parallel, and the upper ends of the two connecting rods 1 are hinged to the middle platform, while the lower ends of the two connecting rods 1 are hinged to the lower overlapping platform.

2. The construction staircase according to claim 1, characterized in that, Both the upper and lower overlapping platforms are equipped with mounting holes for anchor bolts.

3. The construction staircase according to claim 1, characterized in that, The end of the second connecting rod has at least two connecting holes along its length. Fasteners pass through the corresponding connecting holes and connect to the intermediate platform or the lower overlapping platform.

4. The building construction staircase according to claim 1, characterized in that, The middle platform is surrounded by protective railings.

5. The construction staircase according to claim 1, characterized in that, The upper and lower connecting platforms are equipped with guardrails.

6. The construction staircase according to claim 1, characterized in that, The structure of the lower stair unit is the same as that of the upper stair unit.

Images