CN211691160U

CN211691160U - Telescopic stair guardrail

Info

Publication number: CN211691160U
Application number: CN201922059764.9U
Authority: CN
Inventors: 沈小虎
Original assignee: Wuxi Outlets Intelligent Technology Co ltd
Current assignee: Wuxi Outlets Intelligent Technology Co ltd
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-10-16
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a telescopic stair guardrail, which comprises a stair body; the top equidistance of stair body is provided with a plurality of steps, and is a plurality of the equal fixedly connected with sleeve of top central point position of step, telescopic interior diapire fixedly connected with motor, the drive front end fixedly connected with worm of motor, the back wall of telescopic inside rotates and is connected with first fixed axle, first fixed axle fixedly connected with worm wheel, the place ahead of worm wheel is provided with the third connecting rod, the surface fixedly connected with second fixed axle of the one end of worm wheel is kept away from to the third connecting rod. The utility model has the advantages of simple integral structure, convenience safe in utilization is favorable to improving the practicality of scalable stair guardrail. In addition, one end of the movable rod can move in the sleeve, so that the height of the stair guardrail can be adjusted, a person with a high height can conveniently grasp the handrail, and a person with a low height can grasp the upright post without bending down and can grasp the handrail.

Description

Telescopic stair guardrail

Technical Field

The utility model relates to a scalable stair guardrail belongs to stair guardrail technical field.

Background

Stairways are used in buildings as members for vertical inter-floor traffic. The method is used for traffic connection between floors and when the height difference is large. Stairways are also provided in multi-story and high-rise buildings provided with elevators and escalators as the main means of vertical transportation. High-rise buildings, although using elevators as the main vertical transport means, still need to keep staircases for escape in case of fire. The stairs are composed of continuous stair sections (also called stair runs), platforms (rest platforms), enclosing members and the like. The guardrail is a building enclosure component arranged on the side of the stair sections and the platform near the air, and has certain strength and rigidity, and a handrail for people to hold is arranged at the upper part of the guardrail. The handrail is a continuous accessory arranged on the top of the handrail for people to lean on when going up and down stairs.

The existing telescopic stair guardrail technology can have the following problems in the using process:

1. because the stair guardrail needs certain strength and rigidity, the height of the stair guardrail is fixed, and for people with lower height, the upright posts are grasped by hands to ensure the stability of the body; however, the person with a high height needs to bend down to move the center of gravity forward to grasp the armrest, so that the stability of the body can be ensured.

2. Because the structure of current scalable stair guardrail is comparatively complicated, it is comparatively troublesome to adjust the height of stair guardrail, and the practicality is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a scalable stair guardrail to the defect that prior art exists.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme: a telescopic stair guardrail comprises a stair body; the stair comprises a stair body and is characterized in that a plurality of steps are arranged at the top of the stair body at equal intervals, sleeves are fixedly connected to the top center positions of the steps, a motor is fixedly connected to the inner bottom wall of each sleeve, a worm is fixedly connected to the front driving end of the motor, a first fixing shaft is rotatably connected to the rear wall of the inner portion of each sleeve, a worm wheel is fixedly connected to the first fixing shaft, a third connecting rod is arranged in front of the worm wheel, a second fixing shaft is fixedly connected to the outer surface of one end, away from the worm wheel, of the third connecting rod, a second connecting rod is rotatably connected to the second fixing shaft, a third fixing shaft is fixedly connected to the outer surface of one end of the second connecting rod, a first connecting rod is rotatably connected to the third fixing shaft, a movable rod is arranged above the motor, a handrail is fixedly, and a fourth fixing shaft is fixedly connected to the outer surface of the fixing block.

Further, the inside lateral wall fixedly connected with connecting block that is close to the second connecting rod of telescopic, the first connecting axle of surface fixedly connected with of connecting block, first connecting axle rotates and is connected with the gag lever post, the surface rotation that the connecting block was kept away from to the gag lever post one end is connected with the second connecting axle, the outer fixed surface of second connecting axle and second connecting rod is connected.

Furthermore, the second connecting rod is L-shaped, and the worm is meshed with the worm wheel.

Furthermore, one end of the first connecting rod, which is far away from the second connecting rod, is rotatably connected with a fourth fixed shaft.

Furthermore, the bottom end of the movable rod penetrates through the center of the top of the sleeve.

Furthermore, the first fixed shaft is fixedly connected with the third connecting rod.

The utility model has the advantages that: the utility model has the advantages of simple integral structure, convenience safe in utilization is favorable to improving the practicality of scalable stair guardrail. In addition, one end of the movable rod can move in the sleeve, so that the height of the stair guardrail can be adjusted, a person with a high height can conveniently grasp the handrail, and a person with a low height can grasp the upright post without bending down and can grasp the handrail. In addition, the structure of scalable stair guardrail is comparatively simple, rotates through motor drive worm for the movable rod rebound, can adjust the height of stair guardrail, the practicality is higher.

Drawings

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

FIG. 2 is a schematic view of the connection between the sleeve and the movable rod according to the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2 according to the present invention.

Illustration of the drawings: 1. a stair body; 2. a step; 3. a sleeve; 4. a handrail; 5. a movable rod; 6. a motor; 7. a worm gear; 8. a first connecting rod; 9. a fixed block; 10. a second connecting rod; 11. a third connecting rod; 12. a worm; 13. connecting blocks; 14. a limiting rod; 15. a first fixed shaft; 16. a second fixed shaft; 17. a first connecting shaft; 18. a second connecting shaft; 19. a third fixed shaft; 20. and a fourth fixed shaft.

Detailed Description

Fig. 1 to 3 show a retractable stair railing, which comprises a stair body 1; the stair body 1 is provided with a plurality of steps 2 at equal intervals at the top, the top center positions of the steps 2 are fixedly connected with a sleeve 3, a motor 6 is fixedly connected with the inner bottom wall of the sleeve 3, a worm 12 is fixedly connected with the driving front end of the motor 6, the rear wall inside the sleeve 3 is rotatably connected with a first fixing shaft 15, the first fixing shaft 15 is fixedly connected with a worm wheel 7, a third connecting rod 11 is arranged in front of the worm wheel 7, a second fixing shaft 16 is fixedly connected with the outer surface of one end, far away from the worm wheel 7, of the third connecting rod 11, the second fixing shaft 16 is rotatably connected with a second connecting rod 10, a third fixing shaft 19 is fixedly connected with the outer surface of one end of the second connecting rod 10, the third fixing shaft 19 is rotatably connected with a first connecting rod 8, a movable rod 5 is arranged above the motor 6, and a handrail 4 is fixedly connected with the top, the bottom of the movable rod 5 is fixedly connected with a fixed block 9, and the outer surface of the fixed block 9 is fixedly connected with a fourth fixed shaft 20.

When in use, the motor 6 is started, the driving front end of the motor 6 drives the worm 12 to rotate, the worm 12 is meshed with the worm wheel 7, so that the worm wheel 7 rotates around the first fixed shaft 15, because the first fixed shaft 15 is fixedly connected with the third connecting rod 11, the first fixed shaft 15 drives the third connecting rod 11 to rotate around the first fixed shaft 15, the third connecting rod 11 drives the second fixed shaft 16 to move, the second fixed shaft 16 drives the second connecting rod 10 to rotate, because the limiting rod 14 is rotatably connected with the second connecting rod 10 through the second connecting shaft 18, the second connecting rod 10 drives the limiting rod 14 to rotate around the first connecting shaft 17, the limiting rod 14 can limit the motion track of the second connecting rod 10, the second connecting rod 10 drives the third fixed shaft 19 to move, the third fixed shaft 19 drives the first connecting rod 8 to move, the first connecting rod 8 drives the fourth fixed shaft 20 to move, so that the fixed block 9 moves upwards, thereby make the movable rod 5 upwards remove, make the height change of handrail 4, consequently can adjust the height of handrail 4, can adjust the height of stair guardrail, the practicality is higher.

In a further scheme, the inside of the sleeve 3 is close to the side wall fixedly connected with connecting block 13 of the second connecting rod 10, so that the connecting block 13 is fixed, the outer surface fixedly connected with first connecting shaft 17 of the connecting block 13, the connecting block 13 is used for fixing the first connecting shaft 17, the first connecting shaft 17 is rotatably connected with the limiting rod 14, so that the limiting rod 14 can rotate around the first connecting shaft 17, the outer surface of one end, away from the connecting block 13, of the limiting rod 14 is rotatably connected with the second connecting shaft 18, the second connecting shaft 18 can drive the limiting rod 14 to move, the outer surface fixedly connected with the second connecting shaft 18 and the second connecting rod 10 can drive the second connecting shaft 18 to move, and the second connecting shaft 18 is rotatably connected with the limiting rod 14, so that the limiting rod 14 can limit the movement track of the second connecting rod 10.

In a further scheme, the second connecting rod 10 is L-shaped, the L-shaped second connecting rod 10 can control the movement track of the first connecting rod 8, so that the first connecting rod 8 can push the movable rod 5 upwards, the worm 12 is meshed with the worm wheel 7, so that the worm 12 can drive the worm wheel 7 to rotate, and the third connecting rod 11 can rotate around the first fixed shaft 15.

In a further scheme, one end of the first connecting rod 8, which is far away from the second connecting rod 10, is rotatably connected to the fourth fixed shaft 20, and the first connecting rod 8 can drive the fourth fixed shaft 20 to move, so that the first connecting rod 8 pushes the fixing block 9 to move upwards.

In a further scheme, the bottom end of the movable rod 5 penetrates through the top center position of the sleeve 3, so that the movable rod 5 can move inside the sleeve 3, and the height of the handrail 4 can be adjusted.

In a further scheme, the first fixing shaft 15 is fixedly connected with the third connecting rod 11, so that the first fixing shaft 15 can drive the third connecting rod 11 to rotate around the first fixing shaft 15.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A telescopic stair guardrail comprises a stair body; it is characterized in that the preparation method is characterized in that,

the stair comprises a stair body and is characterized in that a plurality of steps are arranged at the top of the stair body at equal intervals, sleeves are fixedly connected to the top center positions of the steps, a motor is fixedly connected to the inner bottom wall of each sleeve, a worm is fixedly connected to the front driving end of the motor, a first fixing shaft is rotatably connected to the rear wall of the inner portion of each sleeve, a worm wheel is fixedly connected to the first fixing shaft, a third connecting rod is arranged in front of the worm wheel, a second fixing shaft is fixedly connected to the outer surface of one end, away from the worm wheel, of the third connecting rod, a second connecting rod is rotatably connected to the second fixing shaft, a third fixing shaft is fixedly connected to the outer surface of one end of the second connecting rod, a first connecting rod is rotatably connected to the third fixing shaft, a movable rod is arranged above the motor, a handrail is fixedly, and a fourth fixing shaft is fixedly connected to the outer surface of the fixing block.

2. The telescopic stair railing of claim 1, wherein the inner portion of the sleeve is fixedly connected to a connecting block at a side wall adjacent to the second connecting rod, a first connecting shaft is fixedly connected to an outer surface of the connecting block, a limiting rod is rotatably connected to the first connecting shaft, a second connecting shaft is rotatably connected to an outer surface of an end of the limiting rod away from the connecting block, and the second connecting shaft is fixedly connected to an outer surface of the second connecting rod.

3. A telescopic stair railing as claimed in claim 1, wherein said second connecting rod is L-shaped and said worm is engaged with a worm gear.

4. A telescopic stair railing as claimed in claim 1, in which the end of the first connecting rod remote from the second connecting rod is pivotally connected to a fourth fixed shaft.

5. A telescopic stair railing as claimed in claim 1, characterised in that the bottom end of the movable rod extends through the top centre of the sleeve.

6. A telescopic stair railing as claimed in claim 1, in which said first fixed shaft is fixedly connected to the third connecting rod.