CN215442783U

CN215442783U - Prefabricated staircase

Info

Publication number: CN215442783U
Application number: CN202120075272.3U
Authority: CN
Inventors: 赵丹
Original assignee: Sanneng Integrated Housing Co Ltd
Current assignee: Sanneng Integrated Housing Co Ltd
Priority date: 2021-01-11
Filing date: 2021-01-11
Publication date: 2022-01-07
Anticipated expiration: 2031-01-11

Abstract

The utility model relates to an assembly type building, in particular to a prefabricated staircase, which comprises at least two prefabricated ladders which are assembled in parallel, wherein a plurality of embedded parts are arranged on the bottom surface of each prefabricated ladder at intervals and are respectively positioned on the edge of the bottom surface, the embedded parts adjacent to the prefabricated ladders are arranged adjacently, and after the prefabricated ladders are assembled in parallel, the embedded parts on the adjacent prefabricated ladders are connected into a whole. The utility model not only reduces the weight of the prefabricated staircase sections, but also can ensure that the lifting appliance only needs to be lifted in place when the prefabricated staircase is assembled without tongue-and-groove connection in the lifting process, thereby shortening the lifting time and accelerating the construction progress.

Description

Prefabricated staircase

Technical Field

The utility model relates to an assembly type building, in particular to a prefabricated staircase.

Background

In prefabricated buildings, prefabricated stairways are usually made in one piece in a factory and then transported to the site for erection by means of equipment, as shown in chinese patent CN 211923286U. Due to the size and weight of the prefabricated staircase, the mould cost and the hoisting instrument cost are greatly increased.

Chinese patent CN111155728A discloses an assembled prefabricated staircase, which is formed by dividing an integral prefabricated staircase into a left prefabricated step and a right prefabricated step along the length direction, wherein the left prefabricated step and the right prefabricated step are assembled into a whole through a tongue-and-groove, so that the weight of the prefabricated staircase during hoisting is reduced, and the requirement on hoisting equipment is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of providing a prefabricated staircase which can reduce the single hoisting weight, reduce the cost and ensure the integrity of the staircase after being assembled aiming at the defects of large size and net weight of the existing prefabricated staircase.

In order to solve the technical problem, the utility model provides a prefabricated staircase which comprises at least two prefabricated ladders which are assembled in parallel, wherein a plurality of embedded parts are arranged on the bottom surface of each prefabricated ladder at intervals and are respectively positioned on the edge of the bottom surface, the embedded parts adjacent to the prefabricated ladders are arranged adjacently, and after the prefabricated ladders are assembled in parallel, the embedded parts on the adjacent prefabricated ladders are connected into a whole.

The prefabricated staircase is split into at least two prefabricated staircase sections which are assembled in parallel, the weight of the prefabricated staircase sections is reduced, the prefabricated staircase sections can be hoisted by using an economical construction hoist, the construction cost is saved, and the prefabricated staircase only needs to be hoisted in place during assembly without tongue-and-groove connection in the hoisting process, so that the hoisting time is shortened, and the construction progress is accelerated.

Preferably, the embedded parts are steel members, and the embedded parts on the adjacent prefabricated ladders are welded into a whole.

Preferably, the embedded parts are arranged at even intervals along the longitudinal direction of the prefabricated bench, so that the connection strength of all the longitudinal positions of the prefabricated bench is ensured to be the same.

Preferably, the bottom surface of the embedded part is square, and connecting columns are arranged at four corners of the embedded part respectively.

Preferably, the step heights, step widths, step heights and step widths of the plurality of prefabricated stair sections are the same, so that the prefabricated stair sections can be made into modular components and spliced to form various applicable widths, the molds can be reused, the economy is improved, the overall performance of the prefabricated stair is good, and the prefabricated stair is simple to produce.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model can reduce the weight of the whole staircase and the prefabricated ladders, use more economical construction lifting appliances, further save the construction cost, and realize the connection of the adjacent prefabricated ladders by welding the embedded parts, thereby shortening the lifting time of the utility model and improving the construction progress.

2. The staircase can be made into modular components and spliced to form various applicable widths.

3. The mold can be repeatedly used, and the economical efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a side view schematically showing the prefabricated staircase according to the present invention.

Fig. 2 is a schematic bottom view of the prefabricated staircase according to the present invention.

Fig. 3 is a schematic top view of the prefabricated staircase according to the present invention.

Fig. 4 is a schematic bottom view of an embedment of the utility model.

FIG. 5 is a schematic side view of an embedment of the utility model.

Detailed Description

The utility model is further described below with reference to specific preferred embodiments, without thereby limiting the scope of protection of the utility model.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described with reference to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

As shown in fig. 1 to 5, an embodiment of the prefabricated staircase of the present invention includes at least two prefabricated flights 1 assembled in parallel, and the step height, step width, flight height and flight width of each prefabricated flight 1 are the same, so that the prefabricated flights 1 form standardized modular components, which not only facilitates the reuse of the mold, but also can be spliced into staircases of various widths taking the width a of a single prefabricated flight 1 as a multiple according to the actual engineering requirements.

The bottom surface of each prefabricated bench 1 is provided with a plurality of embedded parts 2 respectively, and each embedded part 2 is arranged at even intervals along the longitudinal direction of the prefabricated bench 1.

The embedded parts 2 of the prefabricated bench sections 1 are respectively positioned at the edges of the bottom surfaces of the prefabricated bench sections, the embedded parts 2 of the adjacent prefabricated bench sections 1 are arranged adjacently, and after the prefabricated bench sections 1 are assembled in parallel, the embedded parts 2 on the adjacent prefabricated bench sections 1 are connected into a whole. The embedded parts 2 are preferably steel members, and the adjacent embedded parts 2 are welded into a whole.

In this embodiment, the bottom surface of the embedded part 2 is square, and the four corners of the embedded part 2 are respectively provided with a connecting column 3 inserted into the concrete of the prefabricated bench 1. Obviously, the shape and structure of the embedded part 2 are not limited to this, for example, the bottom surface of the embedded part 2 may be trapezoidal, and the number and position of the connecting columns 3 may also be adjusted.

The specific splicing method comprises the following steps: after each prefabricated bench 1 is hoisted in place to be spliced into a prefabricated staircase, each prefabricated bench can form a whole by welding the embedded parts 2 of the adjacent prefabricated benches 1 into a whole.

The above description is only for the preferred embodiment of the present application and should not be taken as limiting the present application in any way, and although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application, and those skilled in the art should understand that they can make various changes and modifications within the technical scope of the present application without departing from the scope of the present application, and therefore all the changes and modifications can be made within the technical scope of the present application.

Claims

1. The prefabricated staircase comprises at least two prefabricated ladders which are assembled in parallel, and is characterized in that a plurality of embedded parts are arranged on the bottom surface of each prefabricated ladder at intervals and are respectively positioned at the edge of the bottom surface and adjacent to the embedded parts of the prefabricated ladders, and after the prefabricated ladders are assembled in parallel, the embedded parts on the adjacent prefabricated ladders are connected into a whole.

2. The prefabricated staircase of claim 1, wherein the embedment members are steel members, and the embedment members on adjacent prefabricated staircases are welded together.

3. The prefabricated staircase of claim 1, wherein the plurality of embedments are arranged at even intervals in a longitudinal direction of the prefabricated staircase section.

4. The prefabricated staircase of claim 1, wherein the bottom surface of the embedded part is square, and connecting columns are respectively arranged at four corners of the embedded part.

5. The prefabricated staircase of claim 1, wherein the step heights, step widths, step heights, and step widths of the plurality of prefabricated flights are the same.