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Safety protection structure of prefabricated stairs in fabricated building

A technology for safety protection and stair structure, applied in the direction of stepped structure, building structure, building material processing, etc., can solve the problems of prefabricated stair damage and inability to apply prefabricated stair protection, etc.

Pending Publication Date: 2020-10-02
BEIJING UNI CONSTR GRP CO LTD THIRD DEV & CONSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing steel pipe temporary stair guardrail needs to be installed with welding points at the bottom to prevent the railing from overturning. Therefore, it is necessary to reserve steel bars on the stair steps for welding. However, prefabricated stairs are used as finished stairs. In order to ensure the appearance quality of the prefabricated stairs, the reserved steel bars for welding the guardrail of the stairs are generally not installed. If you want to add welded steel bars to the stairs later, it will cause damage to the prefabricated stairs
The prefabricated stairs used in prefabricated buildings do not allow any damage on the stair steps, so the traditional steel pipe temporary stair guardrails cannot be applied to the protection of prefabricated stairs

Method used

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  • Safety protection structure of prefabricated stairs in fabricated building
  • Safety protection structure of prefabricated stairs in fabricated building
  • Safety protection structure of prefabricated stairs in fabricated building

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0052] refer to image 3 , is a safety protection structure for prefabricated stairs in a prefabricated building disclosed in the present invention. The difference between Embodiment 2 and Embodiment 1 is that the sleeve 2112 is located on one side of the insertion rod 2111 and between the sleeve 2112 and the insertion rod 2111 The included angle is adjustable. The bushing 2112 is rotationally connected with the insertion rod 2111 through the rotating shaft 3 , wherein the rotating shaft 3 and the bushing 2112 are welded and fixed, and the axis of the rotating shaft 3 is perpendicular to the axis of the inserting rod 2111 . The rotating shaft 3 passes through the insertion rod 2111 and is exposed from a side of the insertion rod 2111 away from the sleeve 2112 .

[0053] At the end of the rotating shaft 3 away from the sleeve 2112 , a plurality of positioning holes 31 are opened on the side wall of the rotating shaft 3 along the circumferential direction of the rotating shaft ...

Embodiment 3

[0056] refer to Figure 4 , is a safety protection structure for prefabricated stairs in a prefabricated building disclosed in the present invention. The difference between Embodiment 3 and Embodiment 1 is that the first connecting column 22 includes a first body 221 and a first screw thread arranged sequentially from bottom to top. Rod 222. The bottom end of the first threaded rod 222 is exposed from the lower surface of the upper stair section 14 .

[0057] refer to Figure 5 One end of the first body 221 facing the first threaded rod 222 is provided with a first threaded hole 2211 matched with the first threaded rod 222 , the first threaded rod 222 extends into the first threaded hole 2211 and connects with the first body 221 Threaded. A first clamping plate 223 is slidably connected to the first threaded rod 222 , and a first through hole 2231 is defined at one end of the first clamping plate 223 , and the diameter of the first through hole 2231 is larger than that of t...

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Abstract

The invention relates to a safety protection structure of prefabricated stairs in a fabricated building, and belongs to the technical field of fabricated building construction. The safety protection structure comprises a prefabricated stair structure and a protective frame. The prefabricated stair structure comprises multiple layers of floor plates sequentially arranged from bottom to top. Middlelaminates are arranged between the adjacent floor plates, the middle laminates are connected with the floor plates located on the lower layers through lower-layer stair sections, the middle laminatesare connected with the floor plates located on the upper layers through upper-layer stair sections, and multiple reserved holes are formed in the stepping surfaces of the lower-layer stair sections and the upper-layer stair sections. The protective frame comprises fences located on the upper-layer stair sections and the lower-layer stair sections correspondingly, the fences located on the upper-layer stair sections are connected with the reserved holes in the upper-layer stair sections in an inserted manner, the fences located on the lower-layer stair sections are connected with the reserved holes in the lower-layer stair sections in an inserted manner, and detachable protective structures are arranged between the fences adjacent up and down. The prefabricated stairs cannot be damaged whenthe safety protection structure is built.

Description

technical field [0001] The invention relates to the technical field of prefabricated building construction, in particular to a safety protection structure for prefabricated stairs in a prefabricated building. Background technique [0002] In the construction process of prefabricated houses, prefabricated stairs are an indispensable prefabricated component. Before installing the formal stair guardrail, the construction site needs to do temporary protection on the prefabricated stairs to protect the construction workers from falling down the stairs during the process of going up and down the stairs. [0003] The existing steel pipe temporary stair guardrail needs to be installed with welding points at the bottom to prevent the railing from overturning. Therefore, it is necessary to reserve steel bars on the stair steps for welding. However, prefabricated stairs are used as finished stairs. In order to ensure the appearance quality of the prefabricated stairs, the reserved ste...

Claims

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Application Information

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IPC IPC(8): E04G21/32E04F11/00
CPCE04F11/00E04G21/32E04G21/3204
Inventor 白松张海波陈杭李晓晨郑辉
Owner BEIJING UNI CONSTR GRP CO LTD THIRD DEV & CONSTR CO LTD