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Prefabricated stair and mounting technology thereof

A stair and installation structure technology, applied in the field of prefabricated stair and its installation technology, can solve the problems of damaged dovetail tenon and dovetail groove clamping and fixing, limited stair fixing effect, influence of prefabricated stair assembly and construction, etc., and achieves easy assembly and transportation. Effect

Active Publication Date: 2020-09-04
河北中铁沧盐建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: the release area of ​​the dovetail tenon and the dovetail groove is limited, and the fixing effect on the stairs is limited, and when the prefabricated staircase is transported, the dovetail tenon protrudes from the prefabricated staircase body, which is very prone to damage Affect the clamping and fixing of dovetail tenons and dovetail grooves, and affect the assembly construction of prefabricated stairs

Method used

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  • Prefabricated stair and mounting technology thereof
  • Prefabricated stair and mounting technology thereof
  • Prefabricated stair and mounting technology thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0048] refer to figure 1 , is a prefabricated staircase disclosed by the present invention, comprising a transfer platform 2, a staircase body 1 and a floor 3, the two ends of the staircase body 1 are respectively assembled on the transfer platform 2 and the floor 3, and the gap between the three is poured with concrete, The assembly and fixing of the staircase body 1 is completed to achieve the effect of rapid assembly of the staircase body 1 .

[0049] refer to figure 1 The stair body 1 comprises a top platform 11, an inclined ladder 12 and a bottom platform 13, the top platform 11 and the bottom platform 13 are respectively fixed at both ends of the inclined ladder 12 and arranged horizontally, the top platform 11 is provided with a first positioning hole 111, the first Positioning hole 111 is a circular hole; The second positioning hole 131 is offered on the bottom platform 13, and the second positioning hole 131 is a circular hole. Opening; the transfer platform 2 inclu...

Embodiment 2

[0057] A prefabricated staircase and an installation method thereof, comprising the following steps:

[0058] S1: The prefabricated staircase body 1 is manufactured in a factory, and four-point hoisting is used to suspend the staircase body 1 at the bottom of the chain. The diameter of the first positioning hole 111 gradually increases from top to bottom, and the staircase body 1 is hoisted to the transfer platform 2 and After 300mm-500mm above the floor 3, adjust the position of the prefabricated floor 3 so that the first positioning hole 111 is aligned with the first positioning member 221, and the second positioning hole 131 is aligned with the second positioning member 31;

[0059] S2: Lower the chain so that the first positioning piece 221 is inserted into the first positioning hole 111, and the second positioning piece 31 is inserted into the second positioning hole 131 at the same time. right in place;

[0060] S3: When the second positioning member 31 is inserted into...

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Abstract

The invention relates to a prefabricated stair and a mounting technology thereof and belongs to the technical field of fabricated building construction. The prefabricated stair comprises a stair body,a transferring platform and a floorslab; a first positioning hole and a second positioning hole are reserved in the stair body; a first positioning piece is pre-embedded on the transferring platformand is embedded in the first positioning hole; a second positioning piece is pre-embedded on the floorslab; the second positioning hole allows the second positioning piece to be embedded; an accommodating groove is formed in the bottom of a bottom platform; a through groove is horizontally formed in the bottom platform and communicates with the tops of the second positioning hole and the accommodating groove; an elastic limiting piece is fixedly arranged on the top surface of the through groove; a pushing component is rotatably arranged in the accommodating groove; a steel plate is fixedly arranged on the pushing component; the bottom surface of the steel plat is flush with the bottom surface of the bottom platform; a limiting groove is formed in the floorslab and allows the steel plate tobe embedded; and the elastic limiting piece is matched with the pushing component to place the steel plate in the accommodating groove. The prefabricated stair has the effects of conveniently transporting the prefabricated stair and rapidly assembling the prefabricated stair to improve the assembling and fixing effect of the prefabricated stair.

Description

technical field [0001] The invention relates to the technical field of prefabricated building construction, in particular to a prefabricated staircase and an installation process thereof. Background technique [0002] At present, the prefabricated reinforced concrete stairs refer to the stairs that are assembled and assembled with components produced by prefabricated factories or made on site. Compared with cast-in-place reinforced concrete stairs, the use of prefabricated stairs can improve the level of industrial construction, save formwork, simplify operating procedures, and greatly shorten the construction period. [0003] The existing Chinese patent whose notification number can be referred to is CN108979029A discloses a prefabricated staircase with a stable structure, including a staircase body, an upper platform and a lower platform. The upper platform is provided with an upper platform lap, the lower platform is provided with a lower platform lap, the upper lap of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04F11/02E04F11/022
CPCE04F11/02E04F11/022E04F2011/0212
Inventor 王志岩何国峰
Owner 河北中铁沧盐建筑科技有限公司
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