CN219887388U

CN219887388U - Prefabricated foldable steel structure stair

Info

Publication number: CN219887388U
Application number: CN202321713946.3U
Authority: CN
Inventors: 周天航
Original assignee: Zhejiang Xiangxi Lvjian Intelligent Manufacturing Co ltd
Current assignee: Zhejiang Xiangxi Lvjian Intelligent Manufacturing Co ltd
Priority date: 2023-07-02
Filing date: 2023-07-02
Publication date: 2023-10-24
Anticipated expiration: 2033-07-02

Abstract

The utility model relates to the technical field of steel structure stairways, in particular to a prefabricated foldable steel structure stairway, which comprises a prefabricated floor slab structure, wherein the prefabricated floor slab structure is provided with a plurality of stairways formed in a spliced installation mode, the prefabricated floor slab structure comprises a bottom frame, pedals and a top frame, both ends of each pedal are installed between the bottom frame and the top frame through hinge shafts, and the bottom frame is fixed on one side close to a wall; the number of the handrail structures is consistent with that of the prefabricated floor slab structures, and the handrail structures are detachably arranged on the top frame; the mounting structure is disposed between adjacent precast floor structures. Through setting up precast floor structure, handrail structure and mounting structure, utilize to divide into a plurality of modules with the stair, connect through mounting structure between the precast floor structure module, form a whole, when transportation and installation, can dismantle every module, reduce volume and weight, be convenient for transport and installation, the simple installation is swift, has reduced the installation degree of difficulty and risk.

Description

Prefabricated foldable steel structure stair

Technical Field

The utility model relates to the technical field of steel structure stairs, in particular to a prefabricated foldable steel structure stair.

Background

Along with the acceleration of the urban process, the construction of high-rise buildings is more and more common, in the high-rise buildings, stairs are used as emergency evacuation channels and daily traffic tools, and meanwhile, in part of double-layer spaces with higher floors, the stairs are used as connecting bearing tools.

At present, various foldable stairs are used for daily life of families in the market, the occupation space of the stairs can be reduced by adopting the foldable stairs, and the operation is convenient, but the stairs have a plurality of problems in the transportation and installation processes, and the problems occur because the stairs are large in size and heavy in weight, and the transportation and installation are troublesome.

Disclosure of Invention

(one) solving the technical problems

Aiming at the defects of the prior art, the utility model provides the prefabricated foldable steel structure stair, and solves the problems in the background art.

(II) technical scheme

In order to achieve the above purpose, the present utility model provides the following technical solutions: the prefabricated foldable steel structure stairway comprises a prefabricated floor slab structure, wherein the prefabricated floor slab structure is provided with a plurality of stairways formed in a spliced installation mode, the prefabricated floor slab structure comprises a bottom frame, pedals and a top frame, two ends of each pedal are installed between the bottom frame and the top frame through hinge shafts, and the bottom frame is fixed on one side close to a wall;

the handrail structures are consistent with the prefabricated floor structures in number, and are detachably arranged on the top frame;

the installation structure is arranged between the adjacent prefabricated floor structures and used for rapid installation among a plurality of prefabricated floor structures.

Preferably, the section of the bottom frame positioned below presents an inverted right trapezoid shape, the top frame positioned below is provided with a frame plate which is used for being supported on a working field and integrally formed with the working field, and the bottom frame and the top frame positioned above are respectively provided with a buckle plate.

Preferably, at least one mounting plate is arranged on each of the plurality of bottom frames, wherein an opening is preset on each mounting plate, and the mounting plates are fixed at the wall body by matching with expansion bolts.

Preferably, the handrail structure comprises two installation cylinders, inserting rods and a handrail body, wherein the two installation cylinders are fixed on the top frame, the number of the inserting rods is consistent with that of the installation cylinders, the inserting rods are inserted into the installation cylinders, and the handrail body is fixed at one end of the two inserting rods away from the installation cylinders.

Preferably, the mounting cylinder and the inserted link are respectively provided with a threaded hole, and when the inserted link is inserted into the mounting cylinder, the two threaded holes are overlapped and are in threaded connection through the fixing bolt.

Preferably, the installation structure comprises a plugboard, fastening bolts, nuts and jacks, wherein the plugboard is arranged on the top frame, an opening for plugboard insertion is correspondingly preset on the adjacent top frame, the opening and the plugboard are respectively provided with the jacks, when the plugboard is inserted into the opening, the two jacks are overlapped and penetrated by the fastening bolts, and the nuts are in threaded connection with the fastening bolts.

(III) beneficial effects

Compared with the prior art, the utility model provides a prefabricated foldable steel structure stair, which comprises the following steps of

The beneficial effects are that:

through setting up prefabricated floor structure, handrail structure and mounting structure, utilize divide into a plurality of modules with the stair, connect through mounting structure between the prefabricated floor structure module, form a whole, when transportation and installation, can dismantle every module, reduce volume and weight, be convenient for transport and installation, the simple and convenient swift of installation does not need on-the-spot welding and cutting, installation degree of difficulty and risk have been reduced, and through adopting steel structural design, have lightweight, intensity is high, advantage such as corrosion-resistant, simultaneously, the steel construction can carry out prefabricated processing, reduce on-the-spot processing and installation time.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a folding structure of the present utility model;

FIG. 2 is a schematic view of the expanded structure of the present utility model;

FIG. 3 is a schematic view of a partially separated structure of the present utility model;

fig. 4 is an enlarged schematic view of the structure a in fig. 3 according to the present utility model.

In the figure: 100. prefabricating a floor slab structure; 101. a bottom frame; 102. a pedal; 103. a mounting plate; 104. a top frame; 105. a frame plate; 106. a buckle plate; 200. a handrail structure; 201. a mounting cylinder; 202. a rod; 203. a handrail body; 204. a threaded hole; 300. a mounting structure; 301. inserting plate; 302. a fastening bolt; 303. a screw cap; 304. and a jack.

Detailed Description

The following detailed description of embodiments of the present utility model will be given with reference to the accompanying drawings and examples, by which the implementation process of how the present utility model can be applied to solve the technical problems and achieve the technical effects can be fully understood and implemented.

Fig. 1-4 show an embodiment of the utility model, prefabricated foldable steel structure stairway, comprising prefabricated floor structure 100, prefabricated floor structure 100 is equipped with a plurality of in order to form the stair through the mode of concatenation installation, wherein prefabricated floor structure 100 includes underframe 101, footboard 102 and top frame 104, the both ends of footboard 102 all are installed on the underframe 101 through the articulated shaft and are equipped with the opening on one side of leaning on the wall, both ends at underframe 101 and top frame 104 all are equipped with the opening, wherein the both ends of footboard 102 all extend the protruding head, protruding head passes through the articulated shaft and installs on the opening, in order to can overturn folding operation, with whole laminating on the wall body, and the bottom frame 101 cross-section that is located the below presents right trapezoid, and other underframe 101 is right triangle, during the installation, right triangle and right trapezoid's inclined plane are in same extension line, and be equipped with on the top frame 104 that is located the below and be used for supporting on the scene and with its integrated into one piece, be equipped with buckle plate 105 on frame 101 and top frame 104 that is located the top, all be equipped with buckle plate 103 on the bottom frame 101 and top frame 103 that is located the top, and at least one expansion plate 103 can be equipped with on the whole expansion plate when the bottom frame 101 is equipped with on the basis of a plurality of the expansion plate, and expansion plate 101 is equipped with on the expansion plate on the bottom frame 101 and expansion plate, and expansion plate is equipped with the expansion plate on the whole through the side of the expansion plate.

In this embodiment, referring to fig. 3, the number of handrail structures 200 is consistent with that of prefabricated floor structures 100, and handrail structures 200 are detachably mounted on top frame 104, handrail structures 200 include mounting cylinders 201, inserting rods 202 and handrail body 203, mounting cylinders 201 are provided with two and fixed on top frame 104, the number of inserting rods 202 is consistent with that of mounting cylinders 201 and inserted into mounting cylinders 201, handrail body 203 is fixed at one end of two inserting rods 202 far away from mounting cylinders 201, and by inserting rods 202 into mounting cylinders 201, the mounting operation of handrail body 203 is realized, so as to ensure the safety of a user during climbing, simultaneously, screw holes 204 are formed in both mounting cylinders 201 and inserting rods 202, when inserting rods 202 are inserted into mounting cylinders 201, the two screw holes 204 are overlapped and are connected through screw threads of fixing bolts, and when the two screw holes 204 are overlapped, the screw fixing operation is performed through fixing bolts.

In this embodiment, referring to fig. 4, the installation structure 300 is disposed between adjacent prefabricated floor structures 100 for quick installation between a plurality of prefabricated floor structures 100, and the installation structure 300 includes a plugboard 301, a fastening bolt 302, a nut 303 and a jack 304, where the plugboard 301 is disposed on the top frame 104, an opening for plugging the plugboard 301 is preset on the adjacent top frame 104, and the opening and the plugboard 301 are both provided with the jack 304, when the plugboard 301 is plugged into the opening, the two jacks 304 are overlapped and penetrated by the fastening bolt 302, the nut 303 is screwed onto the fastening bolt 302, and by plugging the plugboard 301 into the opening, the fastening bolt 302 is penetrated by the jack 304 and screwed onto the fastening bolt 302 by the nut 303, thereby achieving the purpose of fixed installation.

When the embodiment works, the prefabricated floor slab structure 100 is divided into a plurality of modules by using the stair, the modules are connected through the installation structure 300 to form a whole, each module can be detached during transportation and installation, the volume and the weight are reduced, the carrying and the installation are convenient, at the moment, the inserting plate 301 is inserted into the opening, the fastening bolts 302 penetrate through the inserting holes 304 and are connected to the fastening bolts 302 through the nuts 303 in a threaded manner, so that the purpose of fixed installation is achieved, the bottom frame 101 is fixed on a wall body through the holes formed through the expansion bolts, the whole installation operation is achieved, the whole of the prefabricated floor slab structure 100 is conveniently unfolded by a user to form the stair, and the bottom frame 101 positioned above can be supported through the external supporting rods to ensure the stability of the stair.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Prefabricated collapsible steel construction stair, its characterized in that includes:

the prefabricated floor slab structure (100), the prefabricated floor slab structure (100) is provided with a plurality of stairs formed in a spliced installation mode, the prefabricated floor slab structure (100) comprises a bottom frame (101), pedals (102) and a top frame (104), two ends of each pedal (102) are installed between the bottom frame (101) and the top frame (104) through hinge shafts, and the bottom frame (101) is fixed on one side close to a wall;

the handrail structure (200), the handrail structure (200) is consistent with the number of the prefabricated floor slab structures (100), and the handrail structure (200) is detachably arranged on the top frame (104);

-a mounting structure (300), the mounting structure (300) being arranged between adjacent precast floor structures (100) for quick mounting between several precast floor structures (100).

2. The prefabricated collapsible steel structure stairway according to claim 1, wherein: the section of the bottom frame (101) positioned below presents an inverted right trapezoid shape, a frame plate (105) which is used for being supported on a working field and integrally formed with the working field is arranged on the top frame (104) positioned below, and pinch plates (106) are arranged on the bottom frame (101) and the top frame (104) positioned above.

3. The prefabricated collapsible steel structure stairway according to claim 2, wherein: and at least one mounting plate (103) is arranged on each of the plurality of bottom frames (101), wherein an opening is preset on the mounting plate (103) and is fixed at the wall body by matching with expansion bolts.

4. The prefabricated collapsible steel structure stairway according to claim 1, wherein: the handrail structure (200) comprises two mounting cylinders (201), two inserting rods (202) and a handrail body (203), wherein the two mounting cylinders (201) are fixed on the top frame (104), the number of the inserting rods (202) is consistent with that of the mounting cylinders (201), the inserting rods are inserted into the mounting cylinders (201), and the handrail body (203) is fixed at one end, far away from the mounting cylinders (201), of the two inserting rods (202).

5. The prefabricated collapsible steel structure stairway according to claim 4, wherein: screw holes (204) are formed in the mounting barrel (201) and the inserted rod (202), and when the inserted rod (202) is inserted into the mounting barrel (201), the two screw holes (204) are overlapped and connected through fixing bolts.

6. The prefabricated collapsible steel structure stairway according to claim 1, wherein: the mounting structure (300) comprises an inserting plate (301), fastening bolts (302), nuts (303) and inserting holes (304), wherein the inserting plate (301) is arranged on the top frame (104), an opening for inserting the inserting plate (301) is correspondingly preset on the adjacent top frames (104), the opening and the inserting plate (301) are respectively provided with the inserting holes (304), when the inserting plate (301) is inserted into the opening, the two inserting holes (304) are overlapped and penetrated by the fastening bolts (302), and the nuts (303) are in threaded connection with the fastening bolts (302).