CN219654120U

CN219654120U - Multifunctional steel stair

Info

Publication number: CN219654120U
Application number: CN202320306021.0U
Authority: CN
Inventors: 吴迪; 王波; 张帆
Original assignee: Zhongdao Huatai Construction Group Co ltd
Current assignee: Zhongdao Huatai Construction Group Co ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-09-08
Anticipated expiration: 2033-02-24

Abstract

The utility model provides a multifunctional steel stair which comprises two left and right side-by-side ladder beams and a pedal adjusting mechanism, wherein a plurality of pedal openings are formed in a base plate between the ladder beams, a pedal body is rotatably connected in the pedal openings, the pedal adjusting mechanism comprises a driving assembly, the driving assembly is suspended below the ladder beams through a supporting assembly, the driving assembly is provided with a handle, a rotating shaft, a gear, a sliding rod and a connecting rod hinged with the sliding rod, the connecting rod is rotatably connected with a pedal body, and the connecting rod is driven by the rotating handle to drive the gear to be meshed with a rack on the sliding rod for transmission, so that the connecting rod pushes and pulls the pedal body. According to the utility model, the pedal body is driven to rotate by the driving assembly, and the included angles between the pedal bodies and the base plate can be adjusted simultaneously only by rotating the handle, so that the working efficiency of adjusting the included angles of the pedals is improved. The pedal body can form smooth slide when parallel and level with the base plate, can be convenient transport article through the slide, improve and transport efficiency, reduced the amount of labour.

Description

Multifunctional steel stair

Technical Field

The utility model relates to the technical field of building decoration engineering, in particular to a multifunctional steel stair.

Background

The steel stairway in the building generally adopts an assembled structure, the stair tread and the stair beam are assembled into a prefabricated stair frame in a factory, and the prefabricated stair frame is integrally sent to a construction site and connected with the building through a connecting piece. The stair tread is mainly fixedly connected by welding, bolts and the like, and when the longitudinal or transverse connection relation between a building and a prefabricated stair frame is changed, the included angle between the bearing surface of the stair tread and the horizontal plane is difficult to align; the existing steel stair with the angle adjustable stair treadles is single in function, each independent pedal needs to be adjusted one by one, adjustment efficiency is low, and labor intensity is high.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art, provides a multifunctional steel stair, and solves the problems that the steel stair is single in function and the angle of a stair pedal is not easy to adjust.

The technical scheme adopted for solving the technical problems is as follows:

the multifunctional steel stair comprises two left and right side-by-side ladder beams and a pedal adjusting mechanism, wherein a stair pedal is arranged between the ladder beams, two ends of the two ladder beams are respectively connected with an upper platform and a lower platform, a base plate is arranged between the two ladder beams, a plurality of pedal openings are arranged on the base plate along the length direction of the ladder beams, the stair pedal comprises a plurality of pedal bodies which are suitable for the pedal openings, and the pedal bodies are rotatably connected to one end of each pedal opening through a rotating shaft;

the pedal adjusting mechanism comprises a supporting component and a driving component for driving the pedal body to rotate, the driving component comprises two symmetrically arranged sliding rods, racks are arranged along the length direction of the sliding rods, a plurality of cross rods are connected between the two sliding rods, the cross rods are hinged with connecting rods, and the end parts of the connecting rods are hinged with the pedal body; the support assembly comprises a plurality of support columns which are in sliding connection with the slide bars, and the upper ends of the support columns are connected with the ladder beams; the driving assembly comprises a support connected with the side face of the ladder beam, a rotating shaft is rotatably connected to the support, one end of the rotating shaft extends out of the support and is provided with a handle, and a gear meshed with the rack is arranged on the rotating shaft.

Further, the support columns are provided with sliding holes matched with the sliding rods, and the lower ends of the support columns are connected in series through connecting plates.

Further, a supporting rod is arranged in the pedal opening, and two ends of the supporting rod are connected with the ladder beam.

Further, the pedal body is provided with an arc plate which is matched with the pedal opening.

Further, a locking component is arranged on the outer side of the support column.

Further, the cross bar is provided with at least two connecting rods.

Further, the pedal body is abutted against the supporting rod, and the upper surface of the pedal body is flush with the upper surface of the base plate.

The utility model has the following beneficial effects:

1. set up a plurality of footboard bodies on the base plate between two ladder beams, ladder beam downside installation footboard adjustment mechanism, drive the footboard body through footboard adjustment mechanism's drive assembly drive and rotate, make the footboard body rotate the base plate outside, constitute stair footboard and conveniently walk, perhaps make footboard body and base plate parallel and level, splice into smooth slide, transport article through the slide can be convenient, improve transport efficiency, reduced the amount of labour. Meanwhile, through the driving assembly, the included angles between the pedal bodies and the base plate can be adjusted simultaneously only by rotating the handle, so that the working efficiency of adjusting the included angles is improved.

2. Be equipped with branch in the footboard mouth, when the footboard body rotated around the pivot and supported on the branch, the pivot and the branch of the footboard body support the footboard body jointly, prevent that the footboard body from crooked, improve the bearing capacity of the footboard body.

3. The locking subassembly is installed in the support column outside, and when rotating the handle, the drive slide bar drives the connecting rod and promotes the pedal body and rotate to suitable position, connects into stable supporter with supporting component, actuating assembly through locking subassembly, rocks when effectively preventing the pedal body atress. Simultaneously, be equipped with a plurality of locking holes at the slide bar along slide bar length direction, lock the locking hole on the support column with the different locking holes on the slide bar mutually through locking subassembly, let the footboard body with the base plate lock with different contained angles, satisfy the regulation requirement to stair footboard and base plate contained angle in the in-service use.

4. At least two connecting rods are arranged on each cross rod, and the connecting rods are bilaterally symmetrical, so that the pedal body is prevented from being inclined when the pedal body is stepped on.

5. The two gears are respectively meshed with racks on the two slide bars on the rotating shaft, so that the slide bars on the two sides are uniformly stressed and can synchronously move, and the pedal body can rotate more smoothly.

Drawings

The utility model is further described with reference to the accompanying drawings:

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

FIG. 2 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 1 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is a perspective view of another embodiment of the present utility model;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

FIG. 7 is a schematic perspective view of the utility model with the pedal body removed;

FIG. 8 is an enlarged view of a portion of FIG. 7 at D;

FIG. 9 is a schematic view of the structure of the pedal body of the present utility model when the pedal body is covered on the pedal opening;

FIG. 10 is an enlarged view of a portion of FIG. 9 at E;

fig. 11 is a partial enlarged view of F in fig. 3.

In the figure, 1, ladder beams; 11. a substrate; 12. a pedal opening; 13. a support rod; 2. a top platform; 3. a lower platform; 4. a pedal adjustment mechanism; 41. a support assembly; 411. a support column; 412. a connecting plate; 42. a drive assembly; 421. a slide bar; 422. a rack; 423. a cross bar; 424. a connecting rod; 425. a bracket; 426. a rotating shaft; 427. a handle; 428. a gear; 5. a pedal body; 51. a rotating shaft; 52. an arc plate; 6. a locking assembly; 61. a base; 62. and an operation lever.

Detailed Description

In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

As shown in fig. 1-2, the utility model provides a multifunctional steel stair, which comprises two left and right parallel ladder beams 1, wherein a stair tread is arranged between the ladder beams 1, two ends of the two ladder beams 1 are respectively connected with an upper platform 2 and a lower platform 3, a tread adjusting mechanism 4 is arranged at the lower side of the ladder beams 1, and a base plate 11 is arranged between the two ladder beams 1. Preferably, the upper platform 2 and the lower platform 3 are made of steel plates, and two ends of the two ladder beams 1 are connected with the upper platform 2 and the lower platform 3 in a welding mode; the base plate 11 is made of steel plate and is connected between the two ladder beams 1 by means of welding.

As shown in fig. 7, a plurality of tread openings 12 are arranged on the base plate 11 along the length direction of the ladder beam 1, the stair tread comprises a plurality of tread bodies 5 which are matched with the tread openings 12, and the number of the tread bodies 5 is consistent with that of the tread openings 12 and corresponds to that of the tread openings one by one.

As shown in fig. 2-4, the pedal body 5 is rotatably connected to one end of the pedal opening 12 through a rotating shaft 51, two ends of the rotating shaft 51 are rotatably connected to two ladder beams 1 respectively, and a plurality of pedal bodies 5 can rotate around the rotating shaft 51 to the outer side of the base plate 11 to form stair steps in a ladder arrangement. The pedal body 5 is provided with the arc plate 52 which is matched with the pedal opening 12, when the pedal body 5 rotates to the outer side of the base plate 11, the arc plate 52 can be attached to the pedal opening 12, the safety of stepping on the pedal body 5 is improved, and sundries are effectively prevented from falling below the base plate 11.

As shown in fig. 5-6, the pedal adjusting mechanism 4 comprises a support assembly 41 and a driving assembly 42 for driving the pedal body 5 to rotate, wherein the driving assembly 42 comprises two symmetrical slide bars 421, and the slide bars 421 are arranged along the length direction of the ladder beam 1. A rack 422 is provided along the length direction of the slide bar 421, and preferably, the rack 422 is provided at one end of the slide bar 421.

A plurality of cross bars 423 are connected between the two slide bars 421, the number of the cross bars 423 is consistent with that of the pedal body 5, and the cross bars 423 increase the stability of the pedal adjusting mechanism 4. Preferably, the cross bar 423 is detachably connected with the slide bar 421, the cross bar 423 is hinged with a connecting rod 424, and the end of the connecting rod 424 is hinged with the pedal body 5. Each cross rod 423 is provided with at least two connecting rods 424, the connecting rods 424 are bilaterally symmetrical, uneven stress on the pedal body 5 is prevented, and the supporting stability of the connecting rods 424 on the pedal body 5 is improved. By moving the two slide bars 421, the cross bar 423 is driven to move, the plurality of connecting rods 424 are driven to push and pull the plurality of pedal bodies 5, and meanwhile, the included angles between the plurality of pedal bodies 5 and the base plate 11 are adjusted. Preferably, the end of the connecting rod 424 is hinged to the bottom end of the arc plate 52 on the pedal body 5, and when the slide bar 421 translates along the ladder beam 1, the slide bar 423 is driven to translate, so that the connecting rod 424 pushes and pulls the pedal body 5, and the pedal body 5 rotates around the rotating shaft 51 to the outer side of the base plate 11 or covers the pedal opening 12.

As shown in fig. 5 to 8, the support assembly 41 includes a plurality of support columns 411 slidably connected to the slide bars 421, the upper ends of the support columns 411 are connected to the ladder beam 1, and the plurality of support columns 411 are arranged in bilateral symmetry. The support columns 411 are provided with sliding holes matched with the sliding rods 421, and the lower ends of the support columns 411 are connected in series through connecting plates 412. The slide bar 421 sequentially passes through slide holes of the plurality of support columns 411 from one end, and the slide bar 421 is suspended and supported at the lower side of the ladder beam 1 through the slide holes. The connecting plate 412 is detachably connected with the supporting column 411 through bolts, so that the supporting component 41 is prevented from shaking when the sliding rod 421 moves, the stability of the supporting component 41 is improved,

as shown in fig. 3 and 5-6, the drive assembly 42 comprises brackets 425 connected to the sides of the ladder beams 1, and the brackets 425 are rotatably connected to the shafts 426, preferably, the outer sides of the two ladder beams 1 are provided with the brackets 425, and the shafts 426 are rotatably connected between the brackets 425. One end of the rotating shaft 426 extends out of the support 425 and is provided with a handle 427, and the rotating shaft 426 is driven to rotate by rotating the handle 427. The rotating shaft 426 is provided with a gear 428 engaged with the rack 422. Preferably, two gears 428 are meshed with the racks 422 on the two sliding rods 421 respectively, and the two gears 428 are driven to rotate clockwise or anticlockwise by the rotating handle 427 to drive the two sliding rods 421 to move back and forth, so that the two sliding rods 421 on two sides are uniformly stressed and can move synchronously, and the pedal body 5 rotates more smoothly. Through the drive assembly 42, the included angles between the pedal bodies 5 and the base plate 11 can be adjusted simultaneously by only rotating the handle 427.

As shown in fig. 7-8, a supporting rod 13 is arranged in the pedal opening 12, the supporting rod 13 is close to the swinging end of the pedal body 5, and two ends of the supporting rod 13 are connected with the ladder beam 1. When the pedal body 5 rotates to the supporting rod 13 around the rotating shaft 51, one end of the pedal body 5 is supported on the ladder beam 1 through the rotating shaft 51, and the other end of the pedal body 5 is supported through the supporting rod 13, so that the pedal body 5 is stably supported in the pedal opening 12, the pedal body 5 is prevented from being inclined, and the supporting rod 13 improves the bearing capacity of the pedal body 5.

As shown in fig. 9-10, the pedal body 5 is abutted against the supporting rod 13, and the upper surface of the pedal body 5 is flush with the upper surface of the base plate 11, so that the pedal body 5 and the base plate 11 form a smooth inclined slideway. When the article is required to be transported from the upper platform 2 to the lower platform 3, the driving component 42 drives the pedal body 5 to rotate, so that the pedal body 5 is abutted against the supporting rods 13, the article is put down from the upper platform 2 along the base plate 11, and the article moves to the lower platform 3 along a slideway formed by the pedal body 5 and the base plate 11, so that the transportation process is simple to operate, the transportation efficiency is improved, and the labor capacity is reduced.

As shown in fig. 3 and 11, a locking assembly 6 is mounted on the outer side of the support column 411, the locking assembly comprises a base 61 and an operating rod 62, the base 61 is connected with the support column 411, a locking shaft is slidably connected with the base 61 and is engaged with the operating rod 62, locking holes corresponding to the locking shaft are formed in the support column 411 and the slide bar 421, and a plurality of locking holes are formed in the slide bar 421 along the length direction of the slide bar 421.

When the pedal body 5 needs to be rotated to the outer side of the base plate 11, the rotating handle 427 is driven by the rack 422 and the gear 428, so that the slide bar 421 drives the connecting rod 424 to push the pedal body 5 to rotate to the outer side of the base plate 11, the pedal body rotates to a proper position, the locking shaft is driven to pass through the locking holes on the slide bar 421 and the supporting column 411 by rotating the operating rod 62 in the forward direction, the positions of the slide bar 421 and the supporting column 411 are locked, the supporting component 41 and the driving component 42 form a stable supporting structure, the pedal body 5 is effectively prevented from shaking, and the safety of the mechanism is improved.

When the upper surface of the pedal body 5 is required to be flush with the upper surface of the base plate 11, and the objects are convenient to transport, the operating rod 62 is reversely rotated, and the locking shaft is driven to be separated from the locking holes on the sliding rod 421 and the supporting column 411, so that the sliding rod 421 and the supporting column 411 are unlocked; the rotating handle 427 is driven by the gear 428 of the rack 422, so that the slide bar 421 drives the connecting rod 424 to pull the pedal body 5 to rotate towards the base plate 11, when the pedal body 5 abuts against the supporting rod 13, the locking shaft is driven to pass through the locking holes on the slide bar 421 and the supporting column 411 by rotating the operating rod 62 in the forward direction, and the slide bar 421 and the supporting column 411 are locked.

In the description of the present utility model, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", etc. refer to the orientation or positional relationship based on that shown in the drawings, and are merely for the purpose of describing the present utility model and do not require that the present utility model must be constructed or operated in a specific orientation, and thus should not be construed as limiting the present utility model. "connected" and "connected" in the present utility model are to be understood broadly, and may be, for example, connected or detachably connected; the connection may be direct or indirect through intermediate members, and the specific meaning of the terms may be understood in detail by those skilled in the art.

The foregoing has been described in what is considered to be the preferred embodiments of the utility model, and the description of specific examples is only intended to provide a better understanding of the principles of the utility model. It will be apparent to those skilled in the art that modifications and equivalents may be made in accordance with the principles of the utility model, and such modifications and equivalents are considered to fall within the scope of the utility model.

Claims

1. The multifunctional steel stair comprises two left and right side-by-side ladder beams (1), stair pedals are arranged between the ladder beams (1), two ends of the two ladder beams (1) are respectively connected with an upper platform (2) and a lower platform (3), and the multifunctional steel stair is characterized by further comprising a pedal adjusting mechanism (4), a base plate (11) is arranged between the two ladder beams (1), a plurality of pedal openings (12) are formed in the base plate (11) along the length direction of the ladder beams (1), each stair pedal comprises a plurality of pedal bodies (5) which are matched with the pedal openings (12), and the pedal bodies (5) are rotatably connected to one ends of the pedal openings (12) through rotating shafts (51);

the pedal adjusting mechanism (4) comprises a supporting component (41) and a driving component (42) for driving the pedal body (5) to rotate, the driving component (42) comprises two symmetrically arranged sliding rods (421), racks (422) are arranged along the length direction of the sliding rods (421), a plurality of cross rods (423) are connected between the two sliding rods (421), the cross rods (423) are hinged with connecting rods (424), and the end parts of the connecting rods (424) are hinged with the pedal body (5); the supporting component (41) comprises a plurality of supporting columns (411) which are in sliding connection with the sliding rods (421), the upper ends of the supporting columns (411) are connected with the ladder beam (1),

the driving assembly (42) comprises a support (425) connected with the side face of the ladder beam (1), a rotating shaft (426) is rotatably connected to the support (425), one end of the rotating shaft (426) extends out of the support (425) and is provided with a handle (427), and a gear (428) meshed with the rack (422) is arranged on the rotating shaft (426).

2. A multi-functional steel stair according to claim 1, wherein the support columns (411) are provided with sliding holes matched with the sliding rods (421), and the lower ends of the support columns (411) are connected in series through connecting plates (412).

3. A multi-functional steel stair according to claim 1, characterized in that the pedal opening (12) is internally provided with a supporting rod (13), and both ends of the supporting rod (13) are connected with the stair beam (1).

4. A multi-functional steel stairway according to claim 1, characterised in that the tread body (5) is provided with an arc plate (52) adapted to the tread mouth (12).

5. A multi-functional steel stair according to claim 1, characterized in that the locking component (6) is arranged on the outer side of the supporting column (411), the locking component comprises a base (61) and an operating rod (62), a locking shaft is connected in a sliding manner on the base (61), and the locking shaft is connected with the operating rod (62) in a meshed manner.

6. A multi-function steel stairway according to claim 1, characterised in that at least two links (424) are provided for each of the crossbars (423).

7. A multi-functional steel stairway according to claim 3, characterised in that the tread body (5) is arranged against the support bar (13), the upper surface of the tread body (5) being flush with the upper surface of the base plate (11).