CN211007377U - A steel stair structure for PC stairwell - Google Patents

Abstract

The utility model discloses a steel staircase structure for PC staircases, which comprises an integral steel staircase and integral railings fixed on both sides of the integral steel staircase. Adjustable jack; the adjustable jack includes a sleeve welded on the upper or lower end of the integral steel staircase and a stud threaded into the sleeve, an adjustment seat is threaded on the stud, and the sleeve is placed above the adjustment seat . By adjusting the adjustable top support, the utility model can fine-tune the levelness and height of the integral steel staircase and the floor, ensure that the step surface of the integral steel staircase is parallel to the floor, facilitate the construction personnel to walk, and at the same time improve the stability of the integral steel staircase sex. In addition, each component of the integrated steel staircase and the integrated railing of the utility model adopts the welding form at the joints, forming a firm and effective connection between the components, which improves the reliability and stability of the steel staircase.

Description

A steel stair structure for PC stairwell

technical field

The utility model relates to a steel stair structure for PC stairwells, belonging to the technical field of building construction tools.

Background technique

When entering the PC operation floor, safety passages are usually set up at the outer walls or lighting wells or temporary stairs are set up at the floors. During the entry process, it is very easy to step on the empty space, and there are unsafe hidden dangers such as side slip. The installation and dismantling of temporary passages or temporary staircases requires a lot of work and takes a lot of time, which can easily lead to safety accidents and delays in the project construction period. In addition, the installation of safety passages on outer walls or lighting wells requires a large number of I-beams, steel pipes and steel fences, which occupies too much construction site, and the installation of safety passages is complicated in structure, which is not conducive to installation and prone to safety hazards.

Utility model content

The purpose of the utility model is to provide a steel stair structure for PC stairwells, which is convenient and quick, reduces labor costs and has a high safety factor, so as to overcome the deficiencies in the prior art.

In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steel staircase structure for PC stairwell, including integral steel staircase and integral railings fixed on both sides of the integral steel staircase, in the integral steel staircase Two pairs of adjustable top brackets are respectively installed on the upper and lower ends of the device.

Further, the adjustable jack includes a sleeve welded on the upper or lower end of the integral steel staircase and a stud threaded into the sleeve, an adjustment seat is threadedly connected to the stud, and the sleeve is placed above the adjustment seat.

Further, the lower end of the stud is welded with a "U"-shaped plate, and a wooden square is arranged at the bottom of the "U"-shaped plate.

Further, the lower part of the integral railing is fixed on the integral steel staircase by bolts.

Owing to adopting the above-mentioned technical scheme, the utility model has the following advantages:

1. The utility model can fine-tune the levelness and height of the integral steel staircase and the floor by adjusting the adjustable top support, ensuring that the step surface of the integral steel staircase is parallel to the floor, which is convenient for construction personnel to walk, and at the same time improves the overall steel staircase. stability.

2. The components of the integrated steel staircase and the integrated railing of the present utility model are welded at the joints, forming a firm and effective connection between the components, which improves the reliability and stability of the steel staircase.

3. The integral steel staircase and the integral railing of the present invention are reliably connected by bolts, which simplifies the installation steps of the steel staircase.

4. The integral steel staircase is convenient for quick hoisting and saves installation time.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

Figure 2 is a schematic structural diagram of an adjustable jack.

FIG. 3 is a schematic structural diagram when the utility model is implemented.

Description of reference numerals: 1-Adjustable top bracket, 2-Integral steel stairs, 3-Integral railing, 4-Bolt, 1.1-Sleeve, 1.2-Adjustable stud, 1.3-Wooden square, 1.4-"U ” shaped plate, 1.5-stud.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Embodiments of the present utility model: please refer to FIG. 1 and FIG. 2 , a steel staircase structure for PC stairwells includes an integral steel staircase 2 and integral railings 3 fixed on both sides of the integral steel staircase 2. Two pairs of adjustable top brackets 1 are respectively installed on the upper and lower ends of the integral steel staircase 2 . The adjustable jack 1 includes a casing 1.1 welded on the upper or lower end of the integral steel staircase 2 and a stud 1.5 penetrating into the casing 1.1. An adjustment seat 1.2 is threadedly connected to the stud 1.5, and the casing 1.1 is placed on the stud 1.5. Above the adjustment seat 1.2; the lower end of the stud 1.5 is welded with a "U"-shaped plate 1.4, and a wooden square 1.3 is arranged at the bottom of the "U"-shaped plate 1.4. The lower part of the integral railing 3 is fixed on the integral steel staircase 2 by bolts 4 .

Referring to Figure 3, when installing, first hoist the integral steel staircase 2 between the cast-in-place slab and the pre-cast slab in the PC stairwell, and then adjust the adjustable top support 1 to adjust the level and height of the integral steel staircase 2 and the floor. , to ensure that the step surface of the integral steel staircase 2 is parallel to the floor, which is convenient for construction personnel to walk, and at the same time improves the stability of the integral steel staircase 2; On both sides, to ensure that construction workers reach the operation floor safely.

Claims (4)

1. The utility model provides a steel stair structure for PC stairwell, includes integral steel stair (2) and fixes integral railing (3) in integral steel stair (2) both sides, its characterized in that: two pairs of adjustable jacking supports (1) are respectively arranged at the upper end and the lower end of the integral steel stair (2).

2. The steel stair structure for a PC stair well according to claim 1, wherein: the adjustable jacking (1) comprises a sleeve (1.1) welded at the upper end or the lower end of the integral steel stair (2) and a stud (1.5) penetrating into the sleeve (1.1), the stud (1.5) is connected with an adjusting seat (1.2) in a threaded manner, and the sleeve (1.1) is arranged above the adjusting seat (1.2).

3. The steel stair structure for a PC stair well according to claim 2, wherein: the lower end of the stud (1.5) is welded with a U-shaped plate (1.4), and a batten (1.3) is arranged at the bottom of the U-shaped plate (1.4).

4. The steel stair structure for a PC stair well according to claim 1, wherein: the lower part of the integrated railing (3) is fixed on the integrated steel stair (2) through a bolt (4).

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