CN111677336A - A kind of temporary stair passage device with turnaround on operation floor - Google Patents

Abstract

The invention discloses a temporary stair passage device that can be turned around on an operation floor, comprising a stair frame and a thin patterned steel plate. The stair frame is a rectangular frame structure welded by square steel, which is horizontally welded at a certain interval in the stair frame. There is a set of thin checkered steel plates as stair steps, and retractable legs are fixed vertically at the four corners of the stair frame. The invention constitutes a temporary stair passage with a turnover of the operation layer through the stair frame and the thin pattern steel plate, and sets retractable legs at the upper and lower ends of the stair frame to adapt to the height change of the end of the permanent stair tread. At the same time, a base is set under the retractable outriggers to increase the contact area between the temporary stairs and the formwork, reduce the pressure, and protect the supporting formwork. The invention can reduce the damage of the stepping steel bar and the formwork caused by the pedestrian flow before the concrete is poured, and improve the forming quality of the stepping.

Description

A kind of temporary stair passage device with turnaround on operation floor

technical field

The invention relates to a temporary stair passage device that can be turned around on an operation floor, and belongs to the technical field of building structures.

Background technique

In general construction projects, after the steel reinforcement of the stairs is finished, the step risers are directly closed, and then concrete is poured. There are no protective measures in the process from the binding of the steel bars to the concrete pouring. The flow of people on the stairs is large. During the walking process, stepping on the stair step sealing plate or directly stepping on the stair steel bars is difficult to protect the finished product, resulting in poor molding quality of the steel bars or deformation of the side of the steps.

SUMMARY OF THE INVENTION

Aiming at the deficiencies in the prior art, the present invention provides a temporary stair passage device that is easy to install, low in cost, safe and reliable, and can be turned around on the operation floor, so as to overcome the deficiencies in the prior art.

In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a temporary stair passage device that can be turned around on the operation floor, including a stair frame and a thin patterned steel plate, the stair frame is a rectangular frame structure welded by square steel, and the stair A group of thin patterned steel plates are welded horizontally in the frame at certain intervals, which are used as stair steps, and retractable outriggers are vertically fixed at the four corners of the stair frame.

Further, both ends of the thin patterned steel plate are welded and fixed to the stair frame, and connecting ribs are welded between the two ends of the adjacent thin patterned steel plates.

Further, the telescopic outriggers include uprights welded vertically at four corners of the stair frame and sleeves slidably matched with the uprights, the uprights and the sleeves are provided with through holes, and plugs are inserted into the through holes.

Furthermore, a base is welded to the bottom of the sleeve.

Due to the adoption of the above-mentioned technical solutions, the present invention has the following advantages: the present invention constitutes a temporary stairway with a turnover of the operation layer through the stair frame and the thin patterned steel plate, and the upper and lower ends of the stair frame are provided with retractable legs to adapt to permanent Height change at the end of the stair tread. At the same time, a base is set under the retractable outriggers to increase the contact area between the temporary stairs and the formwork, reduce the pressure, and protect the supporting formwork. The invention can reduce the damage of the stepping steel bar and the formwork caused by the pedestrian flow before the concrete is poured, and improve the forming quality of the stepping.

Description of drawings

Fig. 1 is the perspective view of the structural representation of the present invention;

Fig. 2 is the structural representation when the present invention is implemented;

Fig. 3 is a side three-dimensional view of the present invention;

4 is a schematic diagram of the connection structure between the base and the telescopic rod;

Figure 5 is a schematic diagram of the connection structure of the telescopic outriggers.

Description of reference numerals: 1-stair frame; 2-connecting rib; 3-thin checkered steel plate; 4-structural support formwork surface; 5-base; 6-stair structure surface; 7-sleeve; 8-bolt; 9-can Telescopic outriggers; 10-columns.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Embodiments of the present invention: please refer to FIGS. 1 to 5 , a temporary stair passage device that can be turned around on the operation floor includes a stair frame 1 and a thin patterned steel plate 3, and the stair frame 1 is a rectangular frame structure welded by square steel. , a group of thin pattern steel plates 3 are welded horizontally in the stair frame 1 according to the interval of 15cm. Both ends of the thin patterned steel plate 3 are welded and fixed to the stair frame 1, and connecting ribs 2 are welded between the two ends of the adjacent thin patterned steel plates 3, so as to improve the connection strength of the thin patterned steel plate 3 and the stair frame 1 and ensure Pedestrian safety. The telescopic outriggers 9 include uprights 10 welded vertically at the four corners of the stair frame 1 and a sleeve 7 slidably matched with the uprights 10. Through holes are opened on the uprights 10 and the sleeves 7. A pin 8 is inserted. A base 5 is welded to the bottom of the sleeve 7 .

When in use, firstly, the temporary stairway device that can be turned around on the operation floor is hoisted to the top of the stair structure surface 6 by the tower crane, and the base 5 at the lower end of the retractable outrigger 9 is supported on the structural support formwork surface 4, and then the retractable outrigger is adjusted. 9, so that the thin patterned steel plate 3 and the stair structure surface 6 keep a distance of 5cm, which not only facilitates the entry and exit of personnel, but also protects the stair formwork and steel bars from damage. When the concrete is poured, it will be hoisted away and used for the construction of the next floor.

To sum up, the present invention constitutes a temporary stair passageway that can be turned around on the operation floor through the stair frame 1 and the thin patterned steel plate 3, and the upper and lower ends of the stair frame 1 are provided with retractable legs 9 to adapt to the end of the permanent stair tread. height change. At the same time, a base 5 is arranged under the retractable outriggers 9 to increase the contact area between the temporary staircase and the formwork, reduce the pressure, and protect the supporting formwork. The invention can reduce the damage of the stepping steel bar and the formwork caused by the pedestrian flow before the concrete is poured, and improve the forming quality of the stepping.

Claims (4)

1. The utility model provides an operation layer can have enough to meet need interim stair access device, includes stair frame (1) and thin decorative pattern steel sheet (3), its characterized in that: stair frame (1) is the rectangle frame structure that forms by the square steel welding, and the welding has a set of thin decorative pattern steel sheet (3) according to certain interval level in stair frame (1), marks time as the stair, is fixed with scalable landing leg (9) vertically in four corners of stair frame (1).

2. The operational floor turnaround temporary stair way arrangement of claim 1, wherein: the two ends of the thin pattern steel plates (3) are welded and fixed with the stair frame (1), and connecting ribs (2) are welded between the two ends of the adjacent thin pattern steel plates (3).

3. The operational floor turnaround temporary stair way arrangement of claim 1, wherein: scalable landing leg (9) including vertical welding stand (10) and with stand (10) sliding fit's sleeve (7) in four corners of stair frame (1), seted up the through-hole on stand (10) and sleeve (7), inserted bolt (8) in the through-hole.

4. The operational floor turnaround temporary stair way arrangement of claim 3, wherein: the bottom of the sleeve (7) is welded with a base (5).

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