CN214884970U

CN214884970U - Steel stair structure

Info

Publication number: CN214884970U
Application number: CN202120161642.5U
Authority: CN
Inventors: 牛修灵
Original assignee: Hebei Baofeng Light Steel Color Plate Co ltd
Current assignee: Hebei Baofeng Light Steel Color Plate Co ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-11-26
Anticipated expiration: 2031-01-21

Abstract

The utility model relates to a steel construction stair technical field just discloses a steel stair structure, including first ladder roof beam, second ladder roof beam and footboard, the lateral wall at first ladder roof beam both ends all is provided with the handle, the one end of handle is provided with ratchet assembly, ratchet assembly's lateral wall fixedly connected with gyro wheel, be provided with the belt on the gyro wheel, the inside of belt is provided with the gear, the inner wall of belt is provided with the teeth of a cogwheel with the gear meshing, the lateral wall fixedly connected with pivot of gear, second ladder roof beam is provided with the recess corresponding with the pivot, the one end of pivot runs through the footboard setting, and the one end and the recess of pivot rotate and be connected. This kind of steel stair structure through rotating the handle, drives the footboard upset of stair, and a plurality of footboard upsets form the inclined plane that meets in succession, and the convenience is carried heavier material and instrument to through setting up two ratchets, can realize all can carrying out the purpose adjusted to the footboard at the both ends of stair.

Description

Steel stair structure

Technical Field

The utility model relates to a steel construction stair technical field specifically is a steel stair structure.

Background

The steel stair structure is few in pivot, high in bearing capacity, multiple in modeling, high in technical content, not easy to be influenced by structures such as columns and floors, firm and firm, and the existing steel stair structure is widely used in the fields of environmental protection and building engineering due to simple structure and attractive appearance.

The steel stair structure used in the existing factory or large-scale equipment is used as a main channel for carrying heavy materials and tools up and down, and is inconvenient for workers to go up and down stairs when carrying the heavy materials and tools, and certain abrasion can be generated on the workers when dragging the heavy materials and tools up and down stairs.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a steel stair structure has solved the problem that the background art provided.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steel stair structure, includes first terraced roof beam, second terraced roof beam and footboard, the lateral wall at first terraced roof beam both ends all is provided with the handle, the one end of handle is provided with ratchet assembly, ratchet assembly's lateral wall fixedly connected with gyro wheel, be provided with the belt on the gyro wheel, the inside of belt is provided with the gear, the inner wall of belt is provided with the teeth of a cogwheel with the gear meshing, the lateral wall fixedly connected with pivot of gear, second terraced roof beam is provided with the recess corresponding with the pivot, the one end of pivot runs through the footboard setting, and the one end and the recess rotation of pivot are connected.

Preferably, the ratchet wheel assembly comprises two ratchet wheels and a pawl, one end of the pawl is rotatably connected with the inner wall of the first ladder beam, a spring is fixedly connected to the side wall of the pawl, one end of the spring is fixedly connected with the side wall of the first ladder beam, and the directions of ratchet teeth on the two ratchet wheels are opposite.

Preferably, the one end fixedly connected with base of first ladder roof beam and second ladder roof beam, the upper surface of base and footboard all is provided with anti-skidding line.

Preferably, guard rails are fixedly connected above the first ladder beam and the second ladder beam, and handrails are arranged on the guard rails.

Preferably, the lower surface of the pedal is provided with a slideway.

Preferably, the handle is rotatably provided with a rotating sleeve, and the rotating sleeve is provided with anti-skid rubber.

(III) advantageous effects

Compared with the prior art, the utility model discloses possess following beneficial effect:

this kind of steel stair structure sets up gyro wheel, belt and gear through the inside at first ladder roof beam both ends, and the user can rotate the handle, utilizes the belt to remove and drives the gear rotation, drives the footboard upset of stair, and a plurality of footboard upsets form the inclined plane that meets in succession, conveniently carries heavier material and instrument to through setting up two ratchets, can realize all can carrying out the purpose adjusted to the footboard at the both ends of stair.

Drawings

FIG. 1 is a schematic side sectional view of the present invention;

FIG. 2 is a schematic view of the structure at the position A of the present invention;

FIG. 3 is a schematic view of the front cross-sectional structure of the present invention;

fig. 4 is a schematic structural view of the pedal of the present invention.

In the figure: 1. a first ladder beam; 2. a second ladder beam; 3. a ratchet assembly; 4. a base; 5. a ratchet wheel; 6. a pawl; 7. a slideway; 8. a spring; 9. a belt; 10. gear teeth; 11. a gear; 12. a rotating shaft; 13. a groove; 14. a handle; 15. a roller; 16. rotating the sleeve; 17. a pedal; 18. a guard rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, a stair structure made of steel comprises a first stair beam 1, a second stair beam 2 and a pedal 17, wherein handles 14 are arranged on the side walls of the two ends of the first stair beam 1, a ratchet assembly 3 is arranged at one end of each handle 14, a roller 15 is fixedly connected to the side wall of each ratchet assembly 3, a belt 9 is arranged on each roller 15, a gear 11 is arranged inside each belt 9, gear teeth 10 meshed with the gear 11 are arranged on the inner wall of each belt 9, a rotating shaft 12 is fixedly connected to the side wall of each gear 11, a groove 13 corresponding to the rotating shaft 12 is arranged on the second stair beam 2, one end of each rotating shaft 12 penetrates through the corresponding pedal 17, and one end of each rotating shaft 12 is rotatably connected with the groove 13.

Ratchet assembly 3 includes two ratchet 5 and pawl 6, and the one end of pawl 6 rotates with the inner wall of first ladder roof beam 1 to be connected, and the lateral wall fixedly connected with spring 8 of pawl 6, the one end of spring 8 and the lateral wall fixed connection of first ladder roof beam 1, and the ratchet direction on two ratchet 5 is opposite, through setting up two ratchet 5, realizes all can carrying out the purpose adjusted to footboard 17 at the both ends of stair.

First ladder roof beam 1 and the one end fixedly connected with base 4 of second ladder roof beam 2, the upper surface of base 4 and footboard 17 all is provided with anti-skidding line, increases the frictional force of footboard 17 and base 4, improves personnel's security going upstairs and downstairs.

Guard rails 18 are fixedly connected above the first ladder beam 1 and the second ladder beam 2, and handrails are arranged on the guard rails 18, so that the safety of personnel is improved in the processes of going upstairs and downstairs and carrying.

The slide 7 is arranged on the lower surface of the pedal 17, the pedals 17 are overturned to form continuously connected inclined planes, and the slide 7 is connected after the pedals 17 are overturned, so that heavy materials and tools can be conveniently carried.

The handle 14 is rotatably provided with a rotating sleeve 16, and the rotating sleeve 16 is provided with anti-skid rubber, so that a worker can hold the handle 14 to rotate the handle.

The working principle is as follows: when the device is used, when a worker is positioned at the upper end of a stair, the ratchet wheel assembly 3 is utilized, the limitation of the pawl 6 on the ratchet wheel 5 of the stair at the upper end is released by adjusting the spring 8 on the ratchet wheel 5 of the stair at the upper end, the handle 14 is rotated to drive the ratchet wheel 5 to rotate, the ratchet wheel 5 drives the roller wheel 15 to rotate, the roller wheel 15 drives the belt 9 to move, the gear teeth 10 on the inner wall of the belt 9 drive the gear 11 to rotate, the gear 11 drives the rotating shaft 12 to drive the pedals 17 to turn over, a plurality of pedals 17 turn over to form a continuous connected inclined plane, the overturned pedals 17 are connected by the aid of the slide ways 7 arranged on the lower surface of the pedals 17, the slide ways 7 are connected by the overturned pedals 17, heavy materials and tools are convenient to carry, when the worker is positioned at the upper end of the stair, the overturning of the pedals 17 can be adjusted to form the inclined plane on the surface with anti-skid grains, and damage caused by collision due to the fact that the tools slide rapidly slide, utilize the ratchet subassembly 3 that sets up, adjust the ratchet 5 that is located lower extreme stair, upset footboard 17 forms the inclined plane that meets in succession, and the convenience is carried heavier material and instrument, utilizes two ratchet 5 to go up the opposite direction of ratchet, and when the staff is located the stair upper end, ratchet 5 corotation, when the staff is located the stair lower extreme, ratchet 5 reversal realizes all can adjusting footboard 17 at the both ends of stair.

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

Claims

1. The utility model provides a steel stair structure, includes first ladder beam (1), second ladder beam (2) and footboard (17), its characterized in that: the lateral wall at first ladder roof beam (1) both ends all is provided with handle (14), the one end of handle (14) is provided with ratchet assembly (3), the lateral wall fixedly connected with gyro wheel (15) of ratchet assembly (3), be provided with belt (9) on gyro wheel (15), the inside of belt (9) is provided with gear (11), the inner wall of belt (9) is provided with teeth of a cogwheel (10) with gear (11) meshing, the lateral wall fixedly connected with pivot (12) of gear (11), second ladder roof beam (2) are provided with recess (13) corresponding with pivot (12), footboard (17) setting is run through to the one end of pivot (12), and the one end and recess (13) of pivot (12) rotate and be connected.

2. The steel stair structure of claim 1, wherein: the ratchet wheel assembly (3) comprises two ratchet wheels (5) and a pawl (6), one end of the pawl (6) is rotatably connected with the inner wall of the first ladder beam (1), a spring (8) is fixedly connected to the side wall of the pawl (6), one end of the spring (8) is fixedly connected with the side wall of the first ladder beam (1), and the directions of the ratchet teeth on the two ratchet wheels (5) are opposite.

3. The steel stair structure of claim 1, wherein: first ladder roof beam (1) and one end fixedly connected with base (4) of second ladder roof beam (2), the upper surface of base (4) and footboard (17) all is provided with anti-skidding line.

4. The steel stair structure of claim 1, wherein: guard rails (18) are fixedly connected above the first ladder beam (1) and the second ladder beam (2), and handrails are arranged on the guard rails (18).

5. The steel stair structure of claim 1, wherein: the lower surface of the pedal (17) is provided with a slideway (7).

6. The steel stair structure of claim 1, wherein: the handle (14) is rotatably provided with a rotating sleeve (16), and the rotating sleeve (16) is provided with anti-skid rubber.