CN216340540U

CN216340540U - Assembled prefabricated staircase

Info

Publication number: CN216340540U
Application number: CN202120543953.8U
Authority: CN
Inventors: 程涛; 赵丹
Original assignee: Sanneng Integrated Housing Co Ltd
Current assignee: Sanneng Integrated Housing Co Ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2022-04-19
Anticipated expiration: 2031-03-16

Abstract

The utility model relates to an assembly type building, in particular to an assembly type prefabricated staircase, which comprises at least two prefabricated bench sections which are assembled in parallel, wherein a plurality of first extending steel bars or a plurality of sleeves are respectively embedded in opposite surfaces of the adjacent prefabricated bench sections at intervals along the longitudinal direction of the prefabricated bench sections, and the adjacent prefabricated bench sections are connected into a whole through cast-in-place belts. The prefabricated staircase can be hoisted by using the economical construction hoist, so that the construction cost is saved, and when the prefabricated staircase is assembled, only the prefabricated staircase needs to be hoisted in place and then connected by cast-in-place concrete, thereby avoiding tongue-and-groove connection in the hoisting process, shortening the hoisting time and accelerating the construction progress.

Description

Assembled prefabricated staircase

Technical Field

The utility model relates to an assembly type building, in particular to an assembled 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 CN 111155728A discloses an assembled prefabricated staircase, which is formed by dividing an integral prefabricated staircase into a left prefabricated step board and a right prefabricated step board along the length direction, wherein the left prefabricated step board and the right prefabricated step board are assembled into a whole through a tongue-and-groove. Although the assembled prefabricated staircase realizes the weight reduction during hoisting and reduces the requirements on hoisting equipment, the tongue-and-groove assembling mode has high requirement on the accuracy of hoisting positions, so that the prefabricated staircase has long hoisting time during installation and slows down the construction progress.

SUMMERY OF THE UTILITY MODEL

The assembled prefabricated staircase aims to solve the technical problems that the existing assembled prefabricated staircase has high requirement on the accuracy of a hoisting position, the hoisting time is prolonged, and the construction progress is slowed down, and the assembled prefabricated staircase can reduce the accuracy of the hoisting position and accelerate the construction progress.

In order to solve the technical problem, the utility model provides an assembled prefabricated staircase which comprises at least two prefabricated bench sections assembled in parallel, wherein a plurality of first extending steel bars or a plurality of sleeves are respectively embedded in opposite surfaces of the adjacent prefabricated bench sections at intervals along the longitudinal direction of the prefabricated bench sections, and the adjacent prefabricated bench sections are connected into a whole through cast-in-place belts.

According to the prefabricated staircase, 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, so that the prefabricated staircase can be hoisted by using an economical construction hoist, the construction cost is saved, the prefabricated staircase only needs to be hoisted in place during assembly, and then concrete is cast in place for connection, tongue-and-groove connection in the hoisting process is avoided, the requirement on the accuracy of the hoisting position is lowered, the hoisting time is shortened, and the construction progress is accelerated.

Preferably, the sleeve is an internal thread sleeve, the internal thread sleeve is connected with a second extending steel bar through threads, and the cast-in-place strip buries the second extending steel bar.

Preferably, a plurality of the first protruding rebars or sleeves are arranged at uniform intervals in the longitudinal direction of the prefabricated step so as to ensure the same connection strength throughout the longitudinal direction of the prefabricated step.

Preferably, the step height, the step width, the step height and the step width of each prefabricated step are the same, so that the prefabricated steps can be made into modular components and spliced to form various applicable widths, the number of the prefabricated steps required can be selected according to actual engineering requirements, the mold can be repeatedly utilized, the production economy of the prefabricated steps is improved, and the production procedure is simpler.

Preferably, the first protruding steel bars or sleeves on the adjacent prefabricated bench sections are arranged in a staggered mode, so that the strength of the cast-in-place strip is improved.

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

1. the utility model can reduce the weight of the whole stair and the prefabricated stair sections, use the more economical construction lifting appliance, further save the construction cost, and through arranging the extending reinforcing steel bars and the cast-in-place belts, not only the lifting time of the utility model is saved, the construction progress is promoted, but also the requirement of the prefabricated stair with the nonstandard width can be met.

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 of a prefabricated bench of the present invention.

Fig. 2 is a schematic top view of the prefabricated bench of the present invention (pre-embedded first protruding steel bars).

Fig. 3 is a schematic top view of the prefabricated bench of the present invention (the embedded sleeve is connected to the second protruding steel bar).

Fig. 4 is a top view structural view of the assembled prefabricated staircase of the present invention.

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 4, an embodiment of the prefabricated staircase of the present invention includes at least two standardized prefabricated ladders 1 assembled in parallel, wherein a plurality of first protruding rebars 2 or a plurality of sleeves 3 are respectively embedded in opposite surfaces of adjacent prefabricated ladders 1, and the first protruding rebars 2 or the sleeves 3 are arranged at uniform intervals along a longitudinal direction of the prefabricated ladders 1.

The height of marking time, the width of marking time, the bench height, the bench width of each prefabricated bench 1 are the same, make prefabricated bench 1 form the modularization component, make things convenient for the used repeatedly of mould.

The sleeve 3 is an internal thread sleeve, the internal thread sleeve is connected with a second extending steel bar 5 through threads, and the second extending steel bar 5 is buried in the cast-in-place belt 4.

After each prefabricated bench 1 is assembled side by side, the first extension reinforcing steel bars 2 or the sleeves 3 on the adjacent prefabricated bench 1 are staggered, and the adjacent prefabricated benches 1 are connected into a whole by forming cast-in-place belts 4 through post-cast concrete.

The specific splicing method comprises the following steps: and after the prefabricated bench sections 1 are hoisted in place and the cast-in-place belts 4 are reserved, post-cast concrete is poured into the cast-in-place belts 4 between the adjacent prefabricated bench sections 1 so as to connect the prefabricated bench sections 1 into a whole. The stairs with different widths can be realized by adjusting the width of the cast-in-place belt 4.

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 utility model provides a prefabricated staircase of pin-connected panel, includes two at least prefabricated bench of assembling side by side, its characterized in that, adjacent respectively pre-buried a plurality of first reinforcing bars or a plurality of sleeve that stretch out on the opposite face of prefabricated bench, and each first reinforcing bar or sleeve that stretch out are arranged along the longitudinal interval of prefabricated bench, connect into an organic whole through cast-in-place area between the adjacent prefabricated bench.

2. The fabricated stair of claim 1, wherein the sleeve is an internally threaded sleeve and is threaded to a second protruding rebar, and the cast-in-place strip buries the second protruding rebar.

3. A fabricated staircase as claimed in claim 1, wherein a plurality of said first projecting rebars or sleeves are arranged at even intervals in the longitudinal direction of the prefabricated flight.

4. The fabricated stair of claim 1, wherein the prefabricated flights are modular members.

5. The assembled prefabricated staircase of claim 1, wherein the tread height, tread width, staircase height and staircase width of each prefabricated staircase section are the same.

6. The assembled prefabricated staircase according to claim 1, wherein the first protruding rebars or sleeves of adjacent prefabricated sections are arranged in a staggered manner.