CN215829850U

CN215829850U - Rotary stair

Info

Publication number: CN215829850U
Application number: CN202120256542.0U
Authority: CN
Inventors: 姚国阳; 何晓新; 孙瑶; 王小君; 鲍英军; 徐世章
Original assignee: Zhejiang Dafeng Industry Co Ltd
Current assignee: Zhejiang Dafeng Industry Co Ltd
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-02-15
Anticipated expiration: 2031-01-29

Abstract

The utility model discloses a spiral stair which comprises a motor and a plurality of driving steps driven by the motor, wherein a rotating shaft is formed at one end of each of the driving steps, and the driving steps can rotate around the rotating shaft; the other ends of the plurality of driving steps are provided with driving devices for driving the driving steps to rotate; the spiral stair provided by the utility model is driven by the motor, the driving steps are driven by the driving device to rotate around the rotating shaft, and each stage of driving steps is unfolded around the rotating shaft, so that the spiral stair is simple in structure and convenient to use, occupies a small space when being folded, and is more attractive due to the fact that the unfolded stage stair is integrally fan-shaped; the supporting leg column plays a supporting role for the driving step and drives the driving step to rotate through the rolling wheel; the support leg columns on every two adjacent driving adjustments in the folding state are overlapped, so that the space is saved.

Description

Rotary stair

Technical Field

The utility model relates to the technical field of stage performance facilities, in particular to a spiral stair.

Background

Along with the increasing living standard of people, the stage is needed to be used in entertainment and performance, host activities and the like. Due to the diversification of the stage performance forms and the continuous improvement of aesthetic pursuits of audiences, the stage performance facilities also show the diversification trend so as to meet the requirements of various stage performance programs.

At present, conventional stage stair are mostly square structure, adopt mode drives such as flat push or pull or adopt manual mode to build on the stage, and the structure is complicated, uses inconveniently, and occupation space is great when closing.

Therefore, there is a need for further research and practice of the above-mentioned technical problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The technical problem to be solved by the utility model is to provide a spiral stair which is simple in structure, convenient to use, small in occupied space when folded and attractive.

(II) technical scheme

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

a spiral stair comprises a motor and a plurality of driving steps driven by the motor, wherein a rotating shaft is formed at one end of each driving step, and the driving steps can rotate around the rotating shaft; the other end of the plurality of driving steps is provided with a driving device for driving the driving steps to rotate.

Among the above-mentioned technical scheme, by motor drive, drive the drive step through drive arrangement and rotate around the rotation axis, drive steps at different levels expand around the rotation axis, simple structure, convenient to use, occupation space is less when closing, and the stage stair after expanding is whole for fan-shaped, more has the aesthetic feeling.

Furthermore, one end of the driving step is provided with a connecting shaft, and the driving steps are sleeved on the connecting shaft and hinged with the connecting shaft, so that the driving steps can rotate around the connecting shaft.

Among the above-mentioned technical scheme, the drive step suit is in proper order on the connecting axle and articulated with the connecting axle, and the drive step is rotatory around the rotatory expansion of connecting axle.

Further, the driving device comprises a supporting leg column and a rolling wheel; the support leg column is located below the driving step and connected with the driving step, and the rolling wheel is connected with one end, far away from the driving step, of the support leg column.

Among the above-mentioned technical scheme, the supporting leg post plays the supporting role to driving step to it is rotatory to drive driving step through the wheel that rolls.

Furthermore, the supporting leg columns are welded and fixed below the driving steps, and the supporting leg columns on every two adjacent driving steps are arranged in an overlapping mode.

In the technical scheme, the support leg columns on every two adjacent drive adjustment in the folding state are arranged in an overlapping mode, so that the space is saved.

Furthermore, one end of the supporting leg column on any driving step, which is far away from the driving step, is flush.

Among the above-mentioned technical scheme, the one end parallel and level that the drive step was kept away from to the last support leg post that links to each other of arbitrary drive step, and the rolling wheel that links to each other with the support leg post all contacts with audience hall ground below the stage face.

Furthermore, any driving step is provided with a retraction groove for the movement of any supporting leg column.

Among the above-mentioned technical scheme, through set up on the drive step and receive and release the groove, make things convenient for the activity of stage stair support leg post when expanding and closing.

Further, a supporting wheel is installed below the driving step.

In the technical scheme, in two adjacent driving steps, the bottom of the upper driving step is provided with a supporting wheel which is in contact with the lower driving step, and the supporting wheel at the bottom of the lowest driving step is in contact with the stage surface; when the drive step of top expandes, the supporting wheel rotates on the drive step of below for it is more laborsaving that the drive step is opened, and plays supporting role to the drive step, and stability is higher.

Furthermore, a limiting structure is arranged between every two adjacent driving steps;

the limiting structure comprises a limiting groove arranged on the driving step below and a limiting pull rod which is arranged on the driving step above and matched with the limiting groove; when the limiting pull rod is positioned at one end of the limiting groove, the upper driving step is overlapped with the lower driving step; when the limiting pull rod moves to the other end of the limiting groove, the driving step above rotates around the rotating shaft relative to the driving step below.

In the technical scheme, the bottom of the upper driving step in two adjacent driving steps is provided with a limit pull rod, the lower driving step is provided with a limit groove matched with the limit pull rod, and when the limit pull rod is positioned at one end of the limit groove, the upper driving step is overlapped with the lower driving step; when the limiting pull rod moves to the other end of the limiting groove, the driving step above rotates around the rotating shaft relative to the driving step below. Through set up limit structure on two adjacent drive steps, can prevent that the drive step from excessively expanding and excessively receive to close.

Furthermore, a reserved lamp groove is formed in the edge of the driving step.

Among the above-mentioned technical scheme, through install atmosphere lamp etc. additional in reserving the light trough for stage stair are more pleasing to the eye when using.

Further, the surface of the driving step is provided with a reserved decoration fire-proof plate installation part.

Among the above-mentioned technical scheme, decorate PLASTIC LAMINATED installation department installation device PLASTIC LAMINATED through reserving, have the fire prevention function, the security is higher.

(III) advantageous effects

Compared with the prior art, the technical scheme of the utility model has the following advantages:

the spiral stair is driven by the motor, the driving steps are driven by the driving device to rotate around the rotating shaft, all stages of driving steps are unfolded around the rotating shaft, the structure is simple, the use is convenient, the occupied space is small when the stair is folded, and the unfolded stair is fan-shaped as a whole and has aesthetic feeling;

according to the spiral stair provided by the utility model, the support leg columns have a supporting effect on the driving steps and drive the driving steps to rotate through the rolling wheels; the support leg columns on every two adjacent driving adjustments in the folding state are overlapped, so that the space is saved;

in the adjacent two driving steps, the bottom of the driving step above is provided with a supporting wheel which is contacted with the driving step below, and the supporting wheel at the bottom of the driving step below is contacted with the stage surface; when the upper driving step is unfolded, the supporting wheel rotates on the lower driving step, so that the driving step is opened more easily, the supporting effect is realized on the driving step, and the stability is higher;

in the adjacent two driving steps, the bottom of the upper driving step is provided with a limiting pull rod, the lower driving step is provided with a limiting groove matched with the limiting pull rod, and when the limiting pull rod is positioned at one end of the limiting groove, the upper driving step is overlapped with the lower driving step; when the limiting pull rod moves to the other end of the limiting groove, the driving step above rotates around the rotating shaft relative to the driving step below. Through set up limit structure on two adjacent drive steps, can prevent that the drive step from excessively expanding and excessively receive to close.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic structural view in another direction according to an embodiment of the present invention;

FIG. 3 is a schematic view of a support leg assembly according to an embodiment of the present invention;

FIG. 4 is a view of another direction of the support leg according to the embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a limiting structure according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an expanded state according to an embodiment of the present invention.

Wherein: the device comprises a motor 1, a driving step 2, a supporting leg column 21, a rolling wheel 22, a retractable groove 23, a supporting wheel 24, a limiting pull rod 25, a limiting groove 26, a reserved lamp groove 27, a reserved decorative fireproof plate mounting part 28 and a connecting shaft 3.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

Examples

A spiral staircase as shown in fig. 1-6, comprising a motor 1, and a plurality of driving steps 2 driven by the motor 1, wherein one end of the driving steps 2 forms a rotating shaft, and the driving steps 2 can rotate around the rotating shaft; the other end of the plurality of driving steps 2 is provided with a driving device for driving the driving steps 2 to rotate. Driven by motor 1, drive step 2 through drive arrangement and rotate around the rotation axis, drive step 2 at different levels is expanded around the rotation axis, simple structure, convenient to use, and occupation space is less when closing, and the stage stair after the expansion is whole for fan-shaped, more has the aesthetic feeling.

One end of the driving step 2 is provided with a connecting shaft 3, and the driving step 2 is sleeved on the connecting shaft 3 and hinged to the connecting shaft 3, so that the driving step 2 can rotate around the connecting shaft 3. The driving steps 2 are sequentially sleeved on the connecting shaft 3 and hinged with the connecting shaft 3, and the driving steps 2 are unfolded in a rotating mode around the connecting shaft 3.

The driving device comprises a supporting leg column 21 and a rolling wheel 22; the supporting leg column 21 is located below the driving step 2 and connected with the driving step 2, and the rolling wheel 22 is connected with one end of the supporting leg column 21 far away from the driving step 2. The supporting leg posts 21 support the driving steps 2 and drive the driving steps 2 to rotate through the rolling wheels 22.

The supporting leg posts 21 are welded and fixed below the driving steps 2, and the supporting leg posts 21 on every two adjacent driving steps 2 are overlapped; the two adjacent supporting leg columns 21 on the driving adjustment in the folding state are arranged in an overlapping mode, and the space is saved. One end of the supporting leg column 21 on any driving step 2 far away from the driving step 2 is flush; the supporting leg column 21 connected with any driving step 2 is level with the end far away from the driving step 2, and the rolling wheels 22 connected with the supporting leg column 21 are all contacted with the ground of the auditorium below the stage surface.

Any driving step 2 is provided with a retraction groove 23 for moving any supporting leg column 21; the retractable groove 23 is arranged on the driving step 2, so that the movement of the supporting leg column 21 is convenient when the stage stair is unfolded and folded. A supporting wheel 24 is arranged below the driving step 2; in two adjacent driving steps 2, the bottom of the upper driving step 2 is provided with a supporting wheel 24 and is contacted with the lower driving step 2, and the supporting wheel 24 at the bottom of the lowest driving step 2 is contacted with the stage surface; when the drive step 2 of top is expanded, supporting wheel 24 rotates on the drive step 2 of below for drive step 2 opens more laborsavingly, and plays supporting role to drive step 2, and stability is higher.

A limiting structure is arranged between every two adjacent driving steps 2; the limiting structure comprises a limiting groove 26 arranged on the driving step 2 below and a limiting pull rod 25 which is arranged on the driving step 2 above and matched with the limiting groove 26; when the limit pull rod 25 is positioned at one end of the limit groove 26, the upper driving step 2 is overlapped with the lower driving step 2; when the limit pull rod 25 moves to the other end of the limit groove 26, the upper driving step 2 rotates around the rotation axis relative to the lower driving step 2. In two adjacent driving steps 2, the bottom of the upper driving step 2 is provided with a limiting pull rod 25, the lower driving step 2 is provided with a limiting groove 26 matched with the limiting pull rod 25, and when the limiting pull rod 25 is positioned at one end of the limiting groove 26, the upper driving step 2 is overlapped with the lower driving step 2; when the limit lever 25 moves to the other end of the limit groove 26, the upper driving step 2 rotates about the rotation axis with respect to the lower driving step 2. Through set up limit structure on two adjacent drive steps 2, can prevent that drive step 2 from excessively expanding and excessively receive to close.

The edge of drive step 2 is provided with reservation light trough 27, through install atmosphere lamp etc. additional in reservation light trough 27 for it is more pleasing to the eye when stage stair use. The surface of drive step 2 is provided with reserves decorates PLASTIC LAMINATED installation department 28, decorates 28 installation device PLASTIC LAMINATED through reserving, has the fire prevention function, and the security is higher.

The rotary stair provided by the utility model is driven by a motor, the driving steps are driven by a driving device to rotate around the rotating shaft, each stage of driving steps is unfolded around the rotating shaft, the structure is simple, the use is convenient, the occupied space is small when the stair is folded, the unfolded stage stair is integrally fan-shaped, the supporting leg posts have aesthetic feeling and play a role in supporting the driving steps, and the driving steps are driven to rotate by the rolling wheels; the support leg columns on every two adjacent driving adjustments in the folding state are overlapped, so that the space is saved; in two adjacent driving steps, the bottom of the upper driving step is provided with a supporting wheel and is contacted with the lower driving step, and the supporting wheel at the bottom of the lowest driving step is contacted with the stage surface; when the upper driving step is unfolded, the supporting wheel rotates on the lower driving step, so that the driving step is opened more easily, the supporting effect is realized on the driving step, and the stability is higher; in two adjacent driving steps, the bottom of the upper driving step is provided with a limit pull rod, the lower driving step is provided with a limit groove matched with the limit pull rod, and when the limit pull rod is positioned at one end of the limit groove, the upper driving step is overlapped with the lower driving step; when the limiting pull rod moves to the other end of the limiting groove, the driving step above rotates around the rotating shaft relative to the driving step below. Through set up limit structure on two adjacent drive steps, can prevent that the drive step from excessively expanding and excessively receive to close.

In summary, the above embodiments are not intended to be limiting embodiments of the present invention, and modifications and equivalent variations made by those skilled in the art based on the spirit of the present invention are within the technical scope of the present invention.

Claims

1. The spiral stair is characterized by comprising a motor (1) and a plurality of driving steps (2) driven by the motor (1), wherein one ends of the driving steps (2) form a rotating shaft, and the driving steps (2) can rotate around the rotating shaft; the other end of the plurality of driving steps (2) is provided with a driving device for driving the driving steps (2) to rotate.

2. Spiral staircase according to claim 1, characterized in that one end of the driving steps (2) is provided with a connecting shaft (3), several driving steps (2) being sleeved on the connecting shaft (3) and being hinged to the connecting shaft (3) such that the driving steps (2) can rotate around the connecting shaft (3).

3. Spiral staircase according to claim 1, characterised in that said driving means comprise a supporting leg (21) and a rolling wheel (22); the supporting leg column (21) is located below the driving step (2) and connected with the driving step (2), and the rolling wheel (22) is connected with one end, far away from the driving step (2), of the supporting leg column (21).

4. A spiral staircase as claimed in claim 3, characterised in that said support legs (21) are welded and fixed below said driving steps (2), the support legs (21) of each two adjacent driving steps (2) being arranged one above the other.

5. A spiral staircase according to claim 4, characterized in that the end of the support leg (21) on any of the driving steps (2) remote from the driving step (2) is flush.

6. A spiral staircase according to claim 4, characterized in that any of said driving steps (2) is provided with a retraction slot (23) for the movement of any of said supporting legs (21).

7. A spiral staircase according to claim 1, characterised in that below the driving step (2) is mounted a support wheel (24).

8. A spiral staircase as claimed in claim 1, characterised in that between two adjacent driving steps (2) there is provided a stop structure;

the limiting structure comprises a limiting groove (26) arranged on the driving step (2) below and a limiting pull rod (25) which is arranged on the driving step (2) above and matched with the limiting groove (26); when the limiting pull rod (25) is positioned at one end of the limiting groove (26), the upper driving step (2) is overlapped with the lower driving step (2); when the limiting pull rod (25) moves to the other end of the limiting groove (26), the upper driving step (2) rotates around a rotating shaft relative to the lower driving step (2).

9. A spiral staircase as claimed in claim 1, characterised in that the edges of the driving steps (2) are provided with pre-grooves (27).

10. A spiral staircase according to claim 1, characterised in that the surface of the driving step (2) is provided with pre-decorated fire protection plate mounts (28).