CN219365547U - Folding stair in construction site - Google Patents

Abstract

The application discloses folding stair in job site, this stair include a plurality of step standard festival that connect gradually, and it comprises mutually articulated tread and step, will meet tread and tread articulated connection through detachable connecting axle between the adjacent step standard festival. The ladder side beam of the formed stair is connected between all the step standard sections, each step standard section can be of a right-angle structure, and the stair side beam further comprises a railing support and a matched protective railing, wherein the railing support and the matched protective railing are detachably arranged on two sides of each step standard section. This folding stair simple structure can dismantle accomodate after folding, is convenient for transport and turnover use, sets up simultaneously and prevents that the railing can improve the security of ascending a height. The defect that the existing steel pipe is erected, so that the consumed time is more, the turnover can not be realized, and the safety and the reliability are poor is overcome.

Description

Folding stair in construction site

Technical Field

The application relates to the technical field of stairs for building construction, in particular to a folding stair for a construction site.

Background

On the construction site, a temporary simple stair needs to be erected at a part of the construction site, such as a passage opening and an outer frame, to serve as a temporary passage stair for operators to climb up and down. The construction ladder can enter the passage opening, and construction operation is performed on the outer scaffold.

The traditional construction ladder is erected by adopting steel pipes, comprises symmetrical oblique vertical rods and transverse rods connected between the oblique vertical rods (by adopting steel pipe cross buckle connecting pieces), and is more in time consumption and difficult to turn around, and the transverse rods are required to be detached one by one after the traditional construction ladder is used, so that the traditional construction ladder is complicated to erect and detach. In the use process, as the upper cross rod and the lower cross rod are not connected, and the hollow cavity is formed, potential safety hazards of underfoot slipping exist when the cross rod stands on the cross rod (because the cross rod usually adopts a round steel pipe, the stability of the surface contact of the cross rod is poor), and the conventional construction ladder with the steel pipe is complex in assembly and disassembly and poor in safety during climbing.

Therefore, the assembled folding stair is easy to manufacture, convenient to operate, resource-saving in the implementation process, potential hazard of health hazard to constructors is reduced, and meanwhile, working efficiency is improved, so that the assembled folding stair is a problem worthy of research.

Disclosure of Invention

To the problem that above-mentioned exists, this application aims at providing a job site folding stair, and its simple structure can dismantle accomodate after folding, is convenient for transport and turnover use, sets up simultaneously and prevents that the railing can improve the security of ascending a height.

In order to achieve the above purpose, the technical scheme adopted in the application is as follows: a folding stair in a construction site, which is characterized in that: the stair comprises a plurality of step standard sections which are sequentially connected, wherein all the step standard sections are connected with a shaping device for shaping the stair together, and each step standard section is provided with a railing support and a matched protective railing in a detachable mode.

Further, each step standard section consists of a tread and a tread which are mutually hinged, and the adjacent step standard sections are hinged and connected by a detachable connecting shaft.

Furthermore, each connecting shaft both ends all stretch out the step standard festival outside, setting device is for establishing the tip cover of connecting shaft and shaping each step standard festival is the ladder boundary beam of right angle structure.

Further, the assembly holes penetrating through the railing support are formed in the two sides of the tread of each step standard section, each railing support comprises an upright post inserting cylinder and a fastening screw rod penetrating through the assembly hole, and fastening nuts for fixing the railing support and the tread are sleeved at the bottoms of the fastening screw rods.

Further, the guard rail comprises a vertical rod inserted into the inner vertical column inserting cylinder and a top rod hinged to the top end of each vertical rod, wherein each vertical column inserting cylinder is provided with a limiting bolt penetrating through the outer wall of the vertical column inserting cylinder and capable of being tightly propped against the side wall of the vertical rod, and each side wall of the bottom of the vertical rod is provided with a waist-shaped groove embedded into the limiting bolt.

The beneficial effects of this application are: this folding stair simple structure can dismantle accomodate after folding, is convenient for transport and turnover use, sets up simultaneously and prevents that the railing can improve the security of ascending a height. The defect that the existing steel pipe is erected, so that the consumed time is more, the turnover can not be realized, and the safety and the reliability are poor is overcome.

Drawings

Fig. 1 is a structural view of the assembly and shaping of the folding stair of the present application.

FIG. 2 is a block diagram of a single step standard knot of the present application.

Fig. 3 is a block diagram of the railing support of the present application.

Fig. 4 is an enlarged view of the structure at a in fig. 1 of the present application.

Fig. 5 is a side view structural diagram of the guard rail of the present application.

Detailed Description

In order to enable those skilled in the art to better understand the technical solutions of the present application, the technical solutions of the present application are further described below with reference to the accompanying drawings and examples.

A construction site folding stairway as shown in fig. 1 to 5, comprising a plurality of step standard sections 1 connected in sequence, wherein each step standard section 1 is composed of a kicking surface 11 and a step 12 hinged with each other as shown in fig. 1 to 2, and the hinge structure is preferably non-detachable, so that separation and loss of the kicking surface 11 and the step 12 can be avoided, and the integrity of a single step standard section 1 is ensured. Through this and hinge structure, can merge every step standard festival 1 to double-deck plate structure, be convenient for fold after the use accomodates.

In order to connect a plurality of step standard sections 1 into a stair structure, as shown in fig. 2, adjacent step standard sections 1 are hinged with a connected tread 12 and a kick surface 11 through a connecting shaft 4 which can be detachably penetrated. After the connecting shaft 4 is pulled out after the use is finished, the disassembly of the adjacent step standard sections 1 can be realized, and meanwhile, the connecting shaft 4 does not need to be pulled out, namely, the step standard sections 1 are folded into the kick 11 and the step 12, so that the post rapid prototyping erection is facilitated.

In order to keep the shaping (stair) structure of the step standard sections 1 after being connected through the connecting shaft 4, shaping devices for shaping the stair are commonly connected between all the step standard sections 1, as shown in fig. 1 and 4, two ends of each connecting shaft 4 extend out of the outer sides of the step standard sections 1, and the shaping devices are used for sleeving the end parts of the connecting shafts 4 and shaping the stair side beams 5 with right-angle structures of each step standard section 1. A shaping hole (not shown in the figure) corresponding to each connecting shaft 4 is formed in each ladder side beam 5, after a plurality of step standard sections 1 are connected through the connecting shafts 4, both ends of each connecting shaft 4 are all penetrated in the shaping holes of the ladder side beams 5, the outer sides of the ladder side beams 5 are sleeved and fixed with the connecting shafts 4 through nuts in a threaded manner, and all the step standard sections 1 are kept to be connected through the limiting of the shaping holes to form a stair structure.

In order to improve the safety protection of the stair, a railing support 2 and a matched protective railing 3 are detachably arranged on two sides of each step standard section 1. The specific structure is shown in fig. 2-4, the two sides of each step 12 are respectively provided with an assembly hole 12a penetrating through the railing support 2, the railing support 2 comprises a column inserting cylinder 21 and a fastening screw 22 penetrating through the assembly holes 12a, and a fastening nut 23 for fixing the railing support 2 and the steps 12 is sleeved at the bottom of the fastening screw 22. The assembly method is as follows: after each connecting shaft 4 is sleeved and connected through the ladder side beam 5, the fastening screw 22 of the railing support 2 is penetrated into the assembly hole 12a, and the outer diameter of the upright post inserting cylinder 21 is preferably larger than the inner diameter of the assembly hole 12a, so that the upright post inserting cylinder 21 is limited on the surface of the step 12, and the quick assembly of the railing support 2 and the step 12 is realized by sleeving the fastening screw 22 with the fastening nut 23.

As shown in fig. 5, the guard rail 3 includes a vertical rod 31 inserted into each vertical column inserting cylinder 21, and a top rod 32 hinged to the top end of each vertical rod 31, and a limit bolt 24 capable of being tightly abutted against the side wall of the vertical rod 31 is respectively and penetratingly arranged on the outer wall of each vertical column inserting cylinder 21, so that each vertical rod 31 is inserted into the corresponding vertical column inserting cylinder 21 to be connected, and the vertical rod 31 is tightly abutted against the outer wall of the vertical rod 31 by screwing the limit bolt 24 to be tightly connected with the vertical column inserting cylinder 21.

In order to further improve the connection stability between the guard rail 3 and the rail support 2, as shown in fig. 5, a waist-shaped slot 31a embedded in the limit bolt 24 is formed on the bottom sidewall of each vertical rod 31. When the limit bolt 24 is screwed, the end of the limit bolt can be embedded into the waist-shaped groove 31a of the vertical rod 31, so that the problem that the vertical rod 31 is easy to separate from the vertical column inserting cylinder 21 under the action of external force is limited, and the safety protection of the stair is further improved.

The principle of the application is as follows: the step standard sections 1 are hinged through the connecting shafts 4, then the end parts of the connecting shafts 4 are penetrated into the shaping holes of the ladder side beams 5, and the connecting shafts 4 are connected and fastened with the ladder side beams 5 through fastening nuts; then, the fastening screw rod 22 of the railing support 2 is penetrated into the assembly hole 12a of the step 12, and the assembly of the railing support 2 and the step 12 is fastened by sleeving the fastening screw rod 22 with the fastening nut 23; then, a plurality of vertical rods 31 of the guard rail 3 are penetrated into the vertical column inserting cylinder 21, and the limit bolts 24 are screwed into the waist-shaped grooves 31a of the vertical rods 31, so that the whole stair can be quickly assembled and molded. The number of the step standard knot 1 and the length of the ladder side beam 5 can be increased according to the set-up height.

The foregoing has outlined and described the basic principles, main features and advantages of the present application. Various changes and modifications may be made to the present application without departing from the spirit and scope of the application, and such changes and modifications fall within the scope of the application as hereinafter claimed.

Claims (5)

1. A folding stair in a construction site, which is characterized in that: the stair comprises a plurality of step standard sections (1) which are sequentially connected, wherein all the step standard sections (1) are connected with a shaping device for shaping the stair together, and a railing support (2) and a matched protective railing (3) are detachably arranged on two sides of each step standard section (1).

2. A folding stairway according to claim 1, characterised in that: each step standard section (1) consists of a kicking surface (11) and a kicking surface (12) which are mutually hinged, and the adjacent step standard sections (1) are hinged with the connected kicking surface (11) through a connecting shaft (4) which is detachably penetrated.

3. A folding stairway according to claim 2, characterised in that: the two ends of each connecting shaft (4) extend out of the outer sides of the step standard sections (1), and the shaping device is used for sleeving the end parts of the connecting shafts (4) and shaping the ladder side beams (5) with right-angle structures of each step standard section (1).

4. A folding stairway according to claim 3, characterised in that: each step (12) is provided with an assembly hole (12 a) penetrating through the railing support (2), the railing support (2) comprises a column inserting cylinder (21) and a fastening screw (22) penetrating through the assembly hole (12 a), and a fastening nut (23) for fixing the railing support (2) and the steps is sleeved at the bottom of the fastening screw (22).

5. The folding stair of claim 4, wherein: the protection railing (3) comprises vertical rods (31) inserted into each vertical column inserting cylinder (21), and ejector rods (32) hinged to the top ends of the vertical rods (31), limiting bolts (24) capable of being tightly propped against the side walls of the vertical rods (31) are arranged on the outer walls of the vertical column inserting cylinders (21) in a penetrating mode, and waist-shaped grooves (31 a) embedded into the limiting bolts (24) are formed in the side walls of the bottoms of the vertical rods (31).