CN219344165U

CN219344165U - Assembled stair

Info

Publication number: CN219344165U
Application number: CN202320371428.1U
Authority: CN
Inventors: 王斌; 刘雪涛; 韩胜男; 崔瑞敏
Original assignee: China Construction First Group Corp Ltd
Current assignee: China Construction First Group Corp Ltd
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-14
Anticipated expiration: 2033-02-24

Abstract

The utility model relates to the technical field of assembled stairways, in particular to an assembled stairway. The rail comprises two symmetrically arranged rails, wherein each rail comprises a rail rod and a plurality of supporting screw rods, and the bottom ends of the supporting screw rods are contacted with the ground; a plurality of connected stair pedals are arranged between the two rails, and each stair pedal comprises a stepping vertical plate and a stepping flat plate which are connected; the two sides of the stepping vertical plate are respectively provided with a vertical plate fixing piece, and the vertical plate fixing pieces are sleeved outside the supporting screw rod; a first reinforcing pull rod is arranged between two adjacent support screw rods, and a second reinforcing pull rod is arranged between the last support screw rod of the two railings. The vertical plate fixing pieces are arranged on the two sides of the stair tread and are in threaded connection with the supporting screw rod, so that the exposed length of the supporting screw rod can be adjusted according to the pothole condition of the ground base to adapt to complex field environments; meanwhile, the first reinforcing pull rod and the second reinforcing pull rod are arranged between the supporting screw rods, so that the stability of the stair is improved, and the safety of constructors is ensured.

Description

Assembled stair

Technical Field

The utility model relates to the technical field of assembled stairways, in particular to an assembled stairway.

Background

The assembled stairway is used for various high platforms in the construction process of a construction site, and the stairway with proper height is assembled according to the height of the steps, so that the assembled stairway is used for replacing irregular and unstable stairway which is manufactured by workers by using templates when the workers meet the steps on the daily construction site, and the occurrence probability of accidents is reduced.

The actual construction site environment is complicated, the ground base is uneven, the upright rod of the existing assembled stair is fixed, the height cannot be adjusted according to the ground height, the stability of the ground in the pit is poor, and potential safety hazards exist. In view of this, there is a need for an assembled stairway with high stability that can adjust the height of the uprights.

Disclosure of Invention

The utility model aims to provide an assembled stair, which can adjust the height of a vertical rod according to the condition of a pit on the ground, has high stability and reduces potential safety hazards.

The utility model provides an assembled stair, which comprises two symmetrically arranged handrails, wherein each handrail comprises a handrail rod and a plurality of supporting screw rods arranged in the vertical direction, and the bottom ends of the supporting screw rods are in contact with the ground; a plurality of connected stair pedals are arranged between the two rails, and each stair pedal comprises a stepping vertical plate and a stepping flat plate which are connected; vertical plate fixing pieces are arranged on two opposite sides of the stepping vertical plate in the vertical direction, and the vertical plate fixing pieces are sleeved outside the supporting screw rod; a first reinforcing pull rod is arranged between two adjacent supporting screw rods, and a second reinforcing pull rod is arranged between the last supporting screw rod of the two railings.

Further, except for the first supporting screw rod and the last supporting screw rod, the lower parts of the other supporting screw rods are respectively provided with a first reinforcing member, and a first reinforcing pull rod is arranged between two adjacent first reinforcing members.

Further, the second reinforcing pull rod is included; and the last two of the rails is provided with second reinforcing members at the upper part and the lower part of the supporting screw rod, one second reinforcing pull rod is connected with the two second reinforcing members at the upper part, and the other second reinforcing pull rod is connected with the two second reinforcing members at the lower part.

Further, a supporting steel pipe is sleeved on the periphery of the upper portion of the supporting screw rod, a steel pipe supporting piece is arranged on the supporting screw rod, and the steel pipe supporting piece is located at the bottom end of the supporting steel pipe.

Further, a vertical rod top cap is arranged at the top of the supporting steel pipe, and the vertical rod top cap is connected with the supporting screw rod.

Further, the railing comprises two vertically parallel railing rods, and the railing rods are connected with each supporting steel pipe through steel pipe rotating clamps.

Further, the vertical plate fixing piece comprises a circular tube, threads are arranged on the inner wall of the circular tube, the circular tube is in threaded connection with the supporting screw rod, angle irons are fixed on the outer wall of the circular tube, and the angle irons are connected with the stepping vertical plate through bolts; the middle part of the outer wall of the circular tube is provided with a convex clamping piece.

Further, a supporting foot is arranged at the bottom of the supporting screw rod.

Further, the top of the stepping flat plate is provided with an anti-slip strip.

Further, the back of the stepping vertical plate is provided with stiffening ribs.

In summary, compared with the prior art, the utility model has the following advantages:

according to the technical scheme, the vertical plate fixing pieces and the supporting screw rods are arranged on the two sides of the stair tread, the vertical plate fixing pieces are sleeved outside the supporting screw rods, the supporting screw rods can be rotated according to the pothole condition of the ground base, and the exposed length of the supporting screw rods is adjusted to adapt to complex field environments; meanwhile, the first reinforcing pull rod and the second reinforcing pull rod are arranged between the supporting screw rods, so that the stability of the stair is improved, and the safety of constructors is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an assembled stair according to an embodiment of the present utility model;

FIG. 2 is a right side view of an assembled stair according to an embodiment of the present utility model;

FIG. 3 is a rear view of an assembled stair according to an embodiment of the present utility model;

FIG. 4 is a front view of a neutral plate mount according to an embodiment of the present utility model;

FIG. 5 is a top view of a neutral plate mount according to an embodiment of the present utility model;

fig. 6 is a front view of a pole top cap in an embodiment of the utility model.

Reference numerals illustrate: the pedal comprises a pedal body, a pedal vertical plate, a pedal 2-pedal flat plate, a pedal 3-vertical plate fixing piece, a pedal body 301-circular tube, a pedal 302-angle iron, a pedal 303-through hole, a pedal 304-clamping piece, a pedal rod 4-, a pedal screw 5-supporting screw rod, a pedal 6-first reinforcing member, a pedal 7-first reinforcing pull rod, a pedal 8-second reinforcing member, a pedal 9-second reinforcing pull rod, a pedal 10-supporting steel tube, a pedal 11-steel tube supporting piece, a pedal 12-upright cap, a pedal 13-supporting foot, a pedal 14-screw rod joint, a pedal 15-rotating shaft, a pedal 16-anti-slip bar, a pedal 17-steel tube rotating clamp, a pedal 18-bolt 19-stiffening rib and a pedal 20-high platform.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. Furthermore, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

An assembled stairway is shown in figures 1, 2 and 3.

The rail comprises two symmetrically arranged rails, wherein each rail comprises a rail rod 4 and a plurality of supporting screw rods 5 arranged in the vertical direction, and the supporting screw rods 5 are contacted with the ground; a plurality of connected stair pedals are arranged between the two rails, each stair pedal comprises a stepping flat plate 2 and a stepping vertical plate 1 which are connected, vertical plate fixing pieces 3 are arranged on two opposite sides of the stepping vertical plate 1 in the vertical direction, and the vertical plate fixing pieces 3 are sleeved outside the supporting screw rod 5 and are in threaded connection with the supporting screw rod 5; a first reinforcing pull rod 7 is arranged between two adjacent support screw rods 5, and a second reinforcing pull rod 9 is arranged between the last support screw rod 5 of two railings. The first supporting screw rod 5 of the railing penetrates through the vertical plate fixing piece 3 of the first stair tread, and the vertical plate fixing piece 3 does not exist outside the last supporting screw rod 5.

As shown in fig. 4 and 5, the vertical plate fixing member 3 comprises a cylinder 301, the inner wall of the cylinder 301 is provided with threads, the threads are matched with the threads on the supporting screw rod 5, and the supporting screw rod 5 penetrates through the cylinder 301 to be in contact with the ground; an angle iron 302 is welded on the outer wall of the cylinder 301, a plurality of through holes 303 are formed in the angle iron 302, and the through holes 303 are connected with the stepping riser 1 through bolts 18. A convex clamping piece 304 for connecting the first reinforcing pull rod 7 is fixed in the middle of the outer wall of the cylinder 301. In this embodiment, the wall thickness of the circular tube 301 is 5mm, the size of the angle iron 302 is 30×30×5, and the diameter of the through hole 303 is 10mm.

The first reinforcement 6 is sleeved on the lower parts of all the rest support screw rods 5 except the first support screw rod 5 and the last support screw rod 5 within 200mm from the ground. In this embodiment, the first reinforcement 6 is a circular tube with a diameter of 40mm and a height of 150mm and threads on the inner wall, and is in threaded connection with the supporting screw rod 5, two protruding clamping pieces for connecting the first reinforcing pull rod 7 are symmetrically fixed on two sides of the circular tube, and two adjacent first reinforcement 6 are connected through the first reinforcing pull rod 7. Meanwhile, a first reinforcing pull rod 7 is also arranged between the vertical plate reinforcing 3 outside the first supporting screw 5 in the railing and the first reinforcing 6 on the adjacent supporting screw 5.

Two second reinforcing pull rods 9 are arranged between the last supporting screw rods 5 of the two handrails, and second reinforcing members 8 are sleeved on the lower parts (within 200mm from the ground) and the upper parts of the two supporting screw rods 5. In the embodiment, the second reinforcement 8 is a circular tube with a diameter of 40mm and a height of 150mm, the inner wall of which is provided with threads, the circular tube is in threaded connection with the supporting screw rod 5, two convex clamping pieces for connecting the second reinforcement pull rods 9 are arranged on the outer wall of the circular tube, the straight lines of the two clamping pieces are mutually perpendicular, and one second reinforcement pull rod 9 is connected with the two second reinforcement 8 at the upper part; a further second reinforcement tie 9 is connected to the lower two reinforcement elements 8. A first reinforcing tie 7 is also mounted between the lower second reinforcement 8 and the adjacent first reinforcement 6. Meanwhile, according to the requirement of the installation height, in order to increase stability, a first reinforcing pull rod 7 can be installed between the second reinforcing member 8 at the upper part and the adjacent vertical plate fixing pieces 3, the first reinforcing pull rod 7 is installed between the two adjacent vertical plate fixing pieces 3 positioned at the higher position, and a second reinforcing pull rod 9 can be installed between the vertical plate fixing pieces 3 positioned at the two sides of the stepping vertical plate 1 positioned at the higher position.

The stability of the stair is improved through the first reinforcing pull rod 7 and the second reinforcing pull rod 9, and the safety of constructors is guaranteed. In this embodiment, the first reinforcing tie rod 7 and the second reinforcing tie rod 9 are made of angle irons with dimensions of 30×30×3, and the lengths are set according to the distance between two adjacent support screws 5.

The support steel pipe 10 is sleeved on the periphery of the upper part of the support screw 5, the diameter of the support screw 5 in the embodiment is 30mm, and the diameter of the support steel pipe 10 is 48mm and the length of the support steel pipe is 1200mm. The steel pipe support 11 is sleeved on the support screw rod 5, the steel pipe support 11 is positioned at the bottom end of the support steel pipe 10, and the steel pipe support 11 in the embodiment adopts a steel pipe with the height of 15mm and the diameter of 55mm and provided with threads on the inner wall. The railing comprises two vertically parallel railing rods 4, and the railing rods 4 are connected with a supporting steel pipe 10 through a steel pipe rotating clamp 17. In this embodiment, the grab rail 4 is a 48mm diameter steel pipe.

A locking member is mounted on top of the support steel pipe 10, and the locking member is a pole top cap 12, as shown in fig. 6. The lower part of the vertical rod top cap 12 is hollow, a screw thread is arranged in the vertical rod top cap, and the vertical rod top cap is stretched into the vertical rod top cap from the top of the support steel pipe 10 and screwed with the support screw rod 5 when in use.

The bottom of the supporting screw rod 5 is provided with supporting feet 13 for diffusing load.

The stepping flat plate 2 and the stepping vertical plate 1 are rotationally connected through a rotating shaft 15. The rotation shaft 15 in the embodiment adopts a steel rod with the diameter of 15 mm; the stepping vertical plate 1 and the stepping flat plate 2 are made of steel plates with the thickness of 3 mm; the tread plate 2 is 300mm wide and 800-1200mm long, and the tread vertical plate 1 is 180mm high and 800-1200mm long. The top of the stepping plate 2 is welded with a non-slip strip 16, and in this embodiment, the non-slip strip 16 is a steel strip with a size of 20×2mm. The back of the stepping vertical plate 1 is fixed with a plurality of stiffening ribs 19. The stiffening ribs 19 in this embodiment have dimensions of 20 x 3 x 17.

According to the construction height, a plurality of supporting screw rods 5 can be connected through screw rod joints 14 to meet the required height, and the screw rod joints 14 adopt steel pipes with diameters of 40mm and lengths of 150mm and inner walls provided with threads.

The application method of the assembled stair provided by the utility model comprises the following steps:

the first step: the vertical plate fixing piece 3 and the stepping vertical plate 1 are fixed by bolts 18;

and a second step of: assembling the stepping plate 2 and the stepping riser 1 according to the height of the high platform 20 in the construction site, and connecting the stepping plate 2 and the stepping riser 1 by utilizing the rotating shaft 15;

and a third step of: the support screw rod 5 passes through the vertical plate fixing piece 3, the exposed length of the lower end of the support screw rod 5 is adjusted according to different heights and is supported on the ground, a first reinforcement 6 and a second reinforcement 8 are installed, and a first reinforcement pull rod 7 and a second reinforcement pull rod 9 are installed;

fourth step: a supporting foot 13 is arranged at the bottom of the supporting screw rod 5;

fifth step: the steel pipe support 11 is screwed into the support screw 5, the support screw 5 can be lengthened to a proper position through the screw joint 14 according to the required height, the support steel pipe 10 is sleeved, the vertical rod top cap 12 is installed, and the support screw 5 is firmly connected and fixed through a hollow screw thread structure of the vertical rod top cap 12;

sixth step: finally, the grab rail 4 is installed through the steel pipe rotating clamp 17, and the installation is completed.

According to the assembled stair, the exposed length of the supporting screw rod can be adjusted to adapt to complex field environments according to the pothole conditions of the ground through the supporting screw rod and the vertical plate fixing piece, the heights of the supporting screw rods on two sides of the stair tread are adjusted, the supporting screw rods are balanced on the pothole ground, the stability of the first reinforcing pull rod and the second reinforcing pull rod is improved, and the safety of constructors is guaranteed.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims

1. The assembled stair is characterized by comprising two symmetrically arranged handrails, wherein each handrail comprises a handrail rod (4) and a plurality of supporting screw rods (5) which are arranged in the vertical direction, and the bottom ends of the supporting screw rods (5) are in contact with the ground; a plurality of connected stair pedals are arranged between the two rails, and each stair pedal comprises a stepping vertical plate (1) and a stepping flat plate (2) which are connected; two sides of the stepping vertical plate (1) opposite to each other in the vertical direction are respectively provided with a vertical plate fixing piece (3), and the vertical plate fixing pieces (3) are sleeved outside the supporting screw rods (5); a first reinforcing pull rod (7) is arranged between two adjacent supporting screw rods (5), and a second reinforcing pull rod (9) is arranged between the last supporting screw rod (5) of two railings.

2. An assembled stairway according to claim 1, characterised in that the rest of the balustrade, except for the first and last support screw (5), is provided with a first reinforcement (6) at the lower part of the support screw (5), and that the first reinforcement tie (7) is provided between two adjacent first reinforcement (6).

3. An assembled stairway according to claim 1, characterised in that it comprises two said second reinforcing ties (9); the last one of the two handrails is provided with second reinforcing members (8) at the upper part and the lower part of the supporting screw rod (5), wherein one second reinforcing pull rod (9) is connected with the two second reinforcing members (8) at the upper part, and the other second reinforcing pull rod (9) is connected with the two second reinforcing members (8) at the lower part.

4. The assembled stair according to claim 1, wherein a supporting steel pipe (10) is sleeved on the periphery of the upper portion of the supporting screw rod (5), a steel pipe support (11) is arranged on the supporting screw rod (5), and the steel pipe support (11) is located at the bottom end of the supporting steel pipe (10).

5. The assembled stairway according to claim 4, characterised in that the support steel tube (10) is provided with a pole top cap (12) on top, the pole top cap (12) being connected with the support screw (5).

6. An assembled stairway according to claim 5, characterised in that the railing comprises two grab bars (4) parallel up and down, the grab bars (4) and each support steel tube (10) being connected by a steel tube rotation clamp (17).

7. The assembled stairway according to claim 1, characterised in that the riser fixture (3) comprises a circular tube (301), the inner wall of the circular tube (301) is provided with threads, the circular tube (301) is in threaded connection with the support screw (5), the outer wall of the circular tube (301) is fixed with an angle iron (302), and the angle iron (302) is connected with the tread riser (1) through a bolt (18); the middle part of the outer wall of the circular tube (301) is provided with a convex clamping piece (304).

8. An assembled stairway according to claim 1, characterised in that the bottom of the support screw (5) is provided with support feet (13).

9. An assembled stairway according to claim 1, characterised in that the tread plate (2) is provided with a cleat (16) on top.

10. An assembled stairway according to claim 1, characterised in that the back of the tread riser (1) is provided with stiffening ribs (19).