CN111255175A

CN111255175A - Single-beam assembled stair

Info

Publication number: CN111255175A
Application number: CN202010198681.2A
Authority: CN
Inventors: 卓致恩; 张曙光; 章程
Original assignee: Fujian Bonade Science And Technology Park Development Co ltd
Current assignee: Fujian Bonade Science And Technology Park Development Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-06-09

Abstract

The invention discloses a single-beam assembled stair, which comprises a stair main beam, a bottom plate, embedded bolts, a step component and stair railings, and is convenient to assemble and disassemble and reusable, and can be used for laying pipelines in a concealed manner and lighting landscape lighting.

Description

Single-beam assembled stair

The technical field is as follows:

the invention relates to the technical field of civil construction, in particular to a single-beam assembled stair.

Background art:

in the prior building, the common steel stairs are formed by welding ladder beams, steps and handrails, the ladder beams are arranged on two sides, the pedals are welded in the middle, the welding workload is large, the size of the manufactured component is large regardless of the width and the length, the whole component is heavy, the difficulty is high in carrying and installation, and the angles of the pedals cannot be adjusted and can be reused. For the traditional steel stairs, pipelines cannot be hidden in the beam, and the working efficiency is low.

The invention content is as follows:

in order to solve the problems, the invention provides a single-beam assembled stair which comprises a stair main beam, a bottom plate, embedded bolts, a step assembly and stair railings, wherein the stair main beam is formed by splicing a plurality of stair beams, splicing angle steel with holes is welded at the splicing end of the plurality of stair beams, high-strength bolt holes are drilled in a web plate, the plurality of stair beams are connected into a whole stair main beam through splicing plates and the high-strength bolts, rib plates with threaded holes are welded on two sides of a beam wing plate of the stair main beam at intervals, cover plates are arranged above and below the stair main beam and fixed on stiffening ribs with the threaded holes, the bottom plate is arranged at the beam end of the stair main beam and hoisted on the embedded bolts and fixedly connected through adjusting nuts at the lower end of the bottom plate, and a base plate is arranged at the joint of the embedded bolts and the bottom plate;

the stair main beam is characterized in that a step component is mounted on a side wing plate of the stair main beam and comprises a side plate, a pedal, a connecting angle steel, a bearing with a screw rod, a lining plate with a gear and a gasket with a gear, the connecting angle steel with a hole is welded below the pedal, the pedal is fixed on the side plate through a bolt, the bearing with the screw rod is welded on a round hole formed in the upper end of the side plate, an arc-shaped long hole is formed below the side plate, the lining plate with the gear is welded above the arc-shaped long hole, a hole with the same specification as the arc-shaped long hole of the side plate is formed in the lining plate with the gear, the side plate with the screw rod bearing is mounted on the stair main beam and screwed through a nut, and;

the stair railing comprises handrails, stand columns and a safety cross rod, wherein the stand columns are fixed to the pedal through high-strength bolts, the safety cross rod is fixed to the pedal through round-head bolts, and the handrails and the stand columns are fixed through the round-head bolts.

Preferably, the bottom plate is provided with a round hole or an elliptical hole, and the embedded bolt penetrates through the round hole in the bottom plate and is fixedly connected with the round hole through an adjusting nut.

Preferably, the backing plate is also provided with insections.

Preferably, the handrail is provided with a through hole, and the two ends of the upright post and the cross rod are welded with connecting plates with holes.

Preferably, a lamp strip or a pipeline is arranged in the ladder beam of the main ladder beam.

Preferably, the cover plate is made of marble or glass.

Preferably, marble can be laid on the tread surface.

The invention has the beneficial effects that: the invention has simple structure, realizes the modulization of the size, the production of factory standard parts, high industrialization degree and improved quality; the construction period is shortened, and the cost is reduced; the field welding is avoided, and the potential safety hazard is eliminated; all accessories are completely assembled and disassembled without damage, the stepping angle is adjustable, more than 80% of conventional stairs can be matched, the reuse rate is improved, and economic benefits are generated; the whole field assembly can reduce the occupied space of the transportation tool in the transportation process; the pipeline is completely hidden in the beam, is completely closed, and is illuminated by the light, thereby being beautiful and elegant.

Description of the drawings:

for ease of illustration, the invention is described in detail by the following specific examples and figures.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic front view of a single-beam stair;

FIG. 3 is a schematic view of a ladder beam field splice joint;

FIG. 4 is a schematic cross-sectional view of FIG. 3 taken along line 1-1;

FIG. 5 is a schematic view of the step assembly;

FIG. 6 is a side panel construction schematic;

FIG. 7 is a schematic view of a toothed backing plate construction;

FIG. 8 is a schematic view of a toothed shim construction;

FIG. 9 is a schematic view of a column construction;

fig. 10 is a schematic view of a safety rail configuration.

In the figure: 1-a stair main beam; 11-a base plate; 12-a backing plate; 13-splicing angle steel; 14-a splice plate; 15-reinforcing ribs with threaded holes; 16-high strength bolts; 2-a step component; 21-side plate; 22-a pedal; 23-connecting angle steel; 24-screw-on bearings; 25-toothed lining board; 26-a toothed shim; 3, embedding bolts; 4-cover plate; 5-a handrail; 51-a column; 52-safety crossbar; 53-round head bolt.

The specific implementation mode is as follows:

in order that the objects, aspects and advantages of the invention will become more apparent, the invention will be described by way of example only, and in connection with the accompanying drawings. It is to be understood that such description is merely illustrative and not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1 to 10, the present invention provides a single-beam fabricated staircase, which is characterized in that: the stair main beam 1 is formed by splicing a plurality of stair beams, splicing angle steel 13 with holes is welded at the splicing end of the stair beams, high-strength bolt holes are drilled in a web plate, the stair main beams 1 are connected into a whole through splicing plates 14 and high-strength bolts 16, rib plates 15 with threaded holes are welded on two sides of a beam wing plate of each stair main beam 1 at intervals, cover plates 4 are arranged above and below the stair main beam 1, the cover plates 4 are fixed to stiffening ribs 15 with threaded holes, the bottom plate 11 is arranged at the beam end of the stair main beam 1, the bottom plate 11 is hoisted onto the embedded bolts 3 and fixedly connected through adjusting nuts at the lower end of the bottom plate 11, and a base plate 12 is arranged at the joint of the embedded bolts 3 and the bottom plate 11;

the stair main beam 1 is characterized in that a step component 2 is installed on a side wing plate of the stair main beam 1, the step component 2 comprises a side plate 21, a pedal 22, a connecting angle steel 23, a bearing 24 with a screw rod, a lining plate 25 with a gear and a gasket 26 with a gear, the connecting angle steel 23 with a hole is welded below the pedal 22, the pedal 22 is fixed on the side plate 21 through a bolt, the bearing 24 with the screw rod is welded on a round hole formed in the upper end of the side plate 21, an arc-shaped long hole is formed below the side plate 21, the lining plate 25 with the gear is welded above the arc-shaped long hole, a hole with the same specification as the arc-shaped long hole of the side plate 21 is formed in the lining plate 25 with the gear, the side plate 21 with the bearing 24 is installed on the stair main beam 1 and screwed through a nut, and the lower;

the stair railing comprises a handrail 5, a column 51 and a safety cross bar 52, wherein the column 51 is fixed on the pedal 22 through a high-strength bolt 16, the safety cross bar 52 is fixed on the pedal 22 through a round-head bolt 53, and the handrail 5 and the column 51 are fixed through the round-head bolt 53.

Specifically, the number of the prefabricated ladder beams in a factory according to the required specification can be one or more, the prefabricated ladder beams can be determined according to transportation conditions and installation environments, if the splicing ends of a plurality of beams need to be welded with splicing angle steel 13 with holes, high-strength bolt holes are drilled in webs, splicing plates 14 are used on site, and two ladder beams are connected into the integrated stair main beam 1 through high-strength bolts 16. The beam end is provided with a bottom plate 11 which can be provided with a round hole or an elliptical hole, rib plates 15 with threaded holes are welded on two sides of the beam wing plate at intervals, the intervals can be positioned according to the size of the cover plate 4 and used for reinforcing the bearing capacity of the ladder beam, and threaded holes with teeth on the rib plates 15 with the threaded holes are used for fixing the cover plate 4.

Specifically, the pedals 22 are prefabricated in a factory according to required specifications, the number of the pedals is determined according to the actual required step assembly 2, the pedals 22 can be machined according to appearance requirements, and perforated connecting angle steel 23 is welded below the pedals 22.

Specifically, the side plate 21 is prefabricated according to the required specification in a factory, a round hole is formed at the upper end of the side plate 21, and a bearing 24 with a screw rod is welded on the hole of the side plate 21. The marble can be laid on the upper and later stages of the surface of the pedal 22 according to the requirement. The lower part of the side plate 21 is provided with an arc-shaped long hole, the upper part of the arc-shaped long hole is welded with a toothed lining plate 25, the toothed lining plate 25 is provided with a hole with the same specification as the arc-shaped long hole of the side plate 21, and the backing plate 12 is also provided with insections.

Specifically, the handrail 5, the upright post 51 and the safety cross bar 52 are prefabricated according to the required specifications in a factory, the handrail 5 is provided with through holes, and the upright post 51 and the cross bar 52 are welded with connecting plates with holes at both ends.

The installation method of the invention comprises the following steps:

(1) the method comprises the following steps: pre-burying a pre-buried bolt (chemical bolt) 3 in place, screwing an adjusting nut on a screw rod, splicing the ground of the stair main beam 1, hoisting the stair main beam in place to the pre-buried bolt 3, adjusting the adjusting nut at the lower end of a bottom plate 11, and adjusting the height and the front position of the stair main beam 1 to a designed elevation;

(2) step two: installing the side plate 21 with the screw bearing 24 on the main stair beam 1, screwing a nut, and fixing the lower part of the side surface with the main stair beam 1 by using a high-strength bolt 16 and a gasket 26 with teeth;

(3) step three: fixing the pipeline needing to be penetrated and the lighting system in place;

(4) step four: fixing the upper and lower cover plates 4 to the screwed hole stiffening rib 15;

(5) step five: the pedal 22 is fixed to the side plate 21 by bolts;

(6) step six: fixing the upright 51 to the pedal 22 by the high-strength bolt 16;

(7) step seven: securing the safety rail 52 to the pedal 22 with round head bolts 53;

(8) step eight: the armrest 5 and the upright 51 are fixed together with round head bolts 53.

The single-beam assembled stair is convenient to assemble and disassemble, can be repeatedly used, can be used for laying pipelines in a concealed mode, has light landscape lighting, is simple to manufacture, can be transported and assembled in a segmented mode, avoids the problem that a middle beam of a high-rise building is too long and cannot be transported, is installed by pure bolts on site, does not have a welding process, and avoids fire disasters. The pipeline is completely hidden in the beam, is completely closed, and is illuminated by the light, thereby being beautiful and elegant.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a single beam assembled stair which characterized in that: the stair main beam is formed by splicing a plurality of ladder beams, splicing angle steel with holes is welded at the splicing end of the ladder beams, high-strength bolt holes are drilled in a web plate, the ladder beams are connected into the integral stair main beam through splicing plates and the high-strength bolts, rib plates with threaded holes are welded on two sides of a beam wing plate of the stair main beam at intervals, cover plates are arranged above and below the stair main beam and fixed on stiffening ribs with the threaded holes, a bottom plate is arranged at the beam end of the stair main beam, the bottom plate is hoisted onto the embedded bolts and is fixedly connected with the embedded bolts through adjusting nuts at the lower end of the bottom plate, and a base plate is arranged at the joint of the embedded bolts and the bottom plate;

2. The single-beam fabricated staircase of claim 1, wherein: the bottom plate is provided with a round hole or an elliptical hole, and the embedded bolt penetrates through the round hole in the bottom plate and is fixedly connected with the round hole through an adjusting nut.

3. The single-beam fabricated staircase of claim 1, wherein: the backing plate is also provided with insections.

4. The single-beam fabricated staircase of claim 1, wherein: the handrail is provided with through holes, and connecting plates with holes are welded at the two ends of the upright post and the cross rod.

5. The single-beam fabricated staircase of claim 1, wherein: and a lamp strip or a pipeline is arranged in the ladder beam of the main girder of the stair.

6. The single-beam fabricated staircase of claim 1, wherein: the cover plate is made of marble or glass.

7. The single-beam fabricated staircase of claim 1, wherein: the tread surface can be paved with marble.