CN216587881U

CN216587881U - Interim steel stair of turnover use

Info

Publication number: CN216587881U
Application number: CN202123375925.9U
Authority: CN
Inventors: 王世涛; 张子鉴; 周立明; 韦庭志; 高家兴
Original assignee: China Construction Second Engineering Bureau Co Ltd
Current assignee: China Construction Second Engineering Bureau Co Ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-24
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a temporary steel stair for turnover use, which comprises a frame body, steps, guardrails and turnover pedals, wherein the steps and the guardrails are arranged in the frame body; the frame body comprises a bottom plate and a frame, the bottom plate is arranged in the frame, the overturning pedal arranged at the lower opening is arranged on the bottom plate, and the overturning pedal arranged at the upper opening is arranged at the top of the step. The utility model adopts the integral stair as the passage for the upper layer and the lower layer, can be used in a turnover way during construction, does not need to repeatedly set up the stair, and can be used in a turnover way to the lower layer after the use of the current floor is finished; be provided with the guardrail on stair and be used for the protection, need not to set up interim protection repeatedly when carrying out every layer of construction to take one's place with the integrative convenient hoist and mount of stair, it is good to have structural stability simultaneously, advantage that the protecting effect is good.

Description

Interim steel stair of turnover use

Technical Field

The utility model relates to a building construction tool technical field, concretely relates to interim steel stair of turnover use.

Background

Because the assembly type construction has the advantages of high construction efficiency, high precision and good construction quality, and can greatly reduce manual dependence and labor cost, more and more buildings adopt the assembly type construction. However, the assembly type construction at the present stage also brings new problems, measures such as setting up steel pipe barriers, pulling and knotting hemp ropes, spreading and paving anti-falling nets and the like are mostly adopted when the stair opening is protected, but the measures need to be repeatedly disassembled and assembled during construction, so that the labor and material consumption is high, and the protection effect is not ideal. And because the aluminum mold construction is adopted, the passageway between floors can not be constructed and manufactured simultaneously, and the constructors are very inconvenient to go up and down. The utility model provides an interim steel stair of turnover use solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model provides an interim steel stair of turnover use for the interim passageway of upper and lower floor during assembly construction, and have the protecting effect.

The utility model provides a technical scheme that above-mentioned technical problem adopted is:

a temporary steel stair for turnover use comprises a frame body, steps, guardrails and turnover pedals, wherein the steps are arranged in the frame body, the guardrails are arranged on the frame body, the guardrails are positioned on the left side and the right side of the frame body, and the two turnover pedals are respectively arranged at the lower opening and the upper opening of the frame body;

the frame body comprises a bottom plate and a frame, the bottom plate is arranged in the frame, the overturning pedal arranged at the lower opening is arranged on the bottom plate, and the overturning pedal arranged at the upper opening is arranged at the top of the step.

Furthermore, a drawing frame is arranged on the bottom plate, and the drawing frame is oppositely arranged at the front end part and the rear end part of the bottom plate; the drawing groove and the limiting plates are arranged on the left side surface and the right side surface of the bottom plate, the limiting plates are arranged outside the drawing groove at intervals, and the drawing is erected in the drawing groove.

Furthermore, a locking bolt is arranged on the limiting plate and penetrates through the limiting plate to be in contact with the drawing frame.

Furthermore, the drawing and pulling frame is of a U-shaped structure and comprises drawing rods and end rods, the drawing rods are arranged in the drawing grooves, and the end rods are connected to the end portions of the two drawing rods.

Furthermore, the pull rod is provided with an anti-falling bolt, and the anti-falling bolt is detachably connected to the outer end of the pull rod.

Furthermore, the turnover pedal is connected to the frame body through a hinge, and a locking bolt is arranged on the frame body and is in contact with the outer end of the turnover pedal.

Further, the guardrail is including marking time guardrail, rail guard and folding guardrail, the guardrail of marking time is established in the both sides of marking time, the rail guard is established at the frame top, folding guardrail is established on support body and rail guard.

Preferably, the folding guardrails are arranged in two groups and respectively arranged at the lower opening and the upper opening of the frame body, the folding guardrails arranged at the upper opening are arranged on the guardrails, and the folding guardrails arranged at the lower opening are arranged on the frame body.

Preferably, the unfolding angle of the folding guardrail is 90-270 degrees.

Preferably, the steps, the step guardrails and the guard rails are welded on the frame body.

The utility model discloses beneficial effect as follows:

the integral type stairs are used as the upper and lower layer channels, can be recycled during construction, and do not need to be repeatedly erected, and can be recycled to the lower layer for use after the use of the current floor is finished;

the stair is provided with the guardrail for protection, so that temporary protection does not need to be repeatedly erected during construction of each layer, the stair and the guardrail are integrated, and the stair can be conveniently hoisted in place, and meanwhile, the stair has the advantages of good structural stability and good protection effect;

the utility model discloses simple structure, convenient to use, can greatly reduce the potential safety hazard, save construction cycle and reduce construction cost.

Drawings

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

FIG. 2 is a schematic view of the position of the turnover pedal of the present invention;

FIG. 3 is a schematic view of the usage state of the present invention;

fig. 4 is a schematic view of the extended state of the pull frame of the present invention;

fig. 5 is a schematic view of the frame structure of the present invention.

Reference numerals: 1-frame, 11-base, 111-drawing groove, 112-limiting plate, 12-frame, 13-drawing bridge, 2-step, 3-guardrail, 31-folding guardrail, 4-overturning pedal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments, of the present invention. 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.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

As shown in fig. 1, 2, 3, an interim steel stair of turnover use, include support body 1, mark time 2, guardrail 3 and upset footboard 4, mark time 2 and establish in support body 1, guardrail 3 is established on support body 1, guardrail 3 is located the left and right sides of support body 1, upset footboard 4 sets up two, establishes respectively in the lower punishment of department and the upper punishment of department of support body 1.

When the lower floor construction of assembled construction was accomplished and was carried out the upper construction, the entrance to a cave as the stair entrance to a cave was reserved to the upper floor board, generally need be at the interim steel stair of stair entrance to a cave welding and set up at the entrance to a cave edge and prevent the railing temporarily, the utility model discloses directly place on the floor of lower floor during the use, its upper portion connects together with the upper floor board and uses as interim stair to guard action has been set up guardrail 3 as interim guardrail.

The frame body 1 comprises a bottom plate 11 and a frame 12, wherein the bottom plate 11 is arranged in the frame 12, the overturning pedal 4 arranged at the lower opening is arranged on the bottom plate 11, and the overturning pedal 4 arranged at the upper opening is arranged at the top of the step 2.

In order to facilitate the arrangement of the steel stair, the structural dimension of the steel stair is smaller than the dimension of the hole, a gap of 40cm is reserved on one side of the steel stair, the steel stair can be conveniently hoisted from the hole, the pulling and pulling frame 13 is arranged on the bottom plate 11 to avoid potential safety hazards caused by the gap, the steel stair can be conveniently lapped at the hole after the pulling and pulling frame 13 is taken out, and the overturning pedal 4 is arranged to be used for the passage of constructors to guarantee safety.

As shown in fig. 3, 4 and 5, further, a drawing attachment 13 is provided on the bottom plate 11, and the drawing attachment 13 is oppositely provided at the front and rear end portions of the bottom plate 11; the left side surface and the right side surface of the bottom plate 11 are provided with drawing grooves 111 and limiting plates 112, the limiting plates 112 are arranged outside the drawing grooves 111 at intervals to limit the drawing attachment 13, so that the drawing attachment is stably positioned in the drawing grooves 111, can be locked and can be prevented from falling off; the drawer support 13 is arranged in the drawer channel 111. When the drawing frame 13 is in a retraction state, the drawing frame is positioned in the drawing groove 111 of the bottom plate 11, so that the structural size of the steel stair is reduced, and the steel stair is convenient to place and transfer; when the installation is needed, the drawing frame 13 is drawn out and then hung on the opening.

The concrete construction operations of the draw-out bridge 13 are as follows: during placement, hoisting equipment is used for hoisting the steel stair, the steel stair is placed from the hole of the upper floor slab and suspended at a proper height, then an operator pulls out the pulling frame 13, then the pulling frame 13 is locked by using the locking bolt to avoid displacement, and then the steel stair is lowered to the hole of the lower floor slab to complete placement; when the movable floor slab needs to be transferred, the pulling and pulling frame 13 is lifted by using the lifting equipment and suspended at a proper height, then the operator retracts the pulling and pulling frame 13 into the pulling groove 111, and then the movable floor slab is lifted out from the opening and placed at the opening of the next floor slab according to the placement operation.

As shown in fig. 3 and 4, a locking bolt is further disposed on the limiting plate 112, and the locking bolt passes through the limiting plate 112 and contacts with the pulling bridge 13. The arrangement of the locking bolt ensures safe use and avoids safety accidents caused by the fact that the pulling attachment 13 is accidentally retracted into the pulling groove 111.

As shown in fig. 4, further, the pulling bridge 13 is a U-shaped structure, and includes a pulling rod and an end rod, the pulling rod is disposed in the pulling groove 111, and the end rod is connected to the ends of the two pulling rods.

Furthermore, the pull rod is provided with an anti-falling bolt, and the anti-falling bolt is detachably connected to the outer end of the pull rod. The anti-dropping bolt is arranged to guarantee the use safety, and the drawing groove 111 is prevented from being separated from the drawing frame 13 due to accidents, so that safety accidents are avoided.

Preferably, the locking bolt and the anti-falling bolt are both bolts.

As shown in fig. 2 and 3, further, the turnover pedal 4 is connected to the frame body 1 through a hinge, and a locking bolt is arranged on the frame body 1 and contacts with an outer end of the turnover pedal 4. Place on the clearance between steel stair and floor after 4 upset of upset footboards, make things convenient for personnel to pass, guarantee safety.

As shown in fig. 1, 2 and 3, further, the guardrail 3 includes a stepping guardrail, a guardrail and a folding guardrail 31, the stepping guardrail is disposed on two sides of the stepping guardrail, and is used as a hand guard for protection when the constructor uses the stairs, the guardrail is disposed on the top of the frame 12, the folding guardrail 31 is disposed on the frame 1 and the guardrail, the guardrail is disposed on the top of the frame 12, the guardrail mainly functions as a temporary protection guardrail at the entrance to the cave, and plays a role in protection, and the folding guardrail 31 plays a role in protection as a personnel protection, plays a role in supplementing protection to the protection gap, and further improves the safety effect of protection.

As shown in fig. 1, 2 and 3, two groups of folding guardrails 31 are arranged and are respectively arranged at the lower opening and the upper opening of the frame body 1, the folding guardrails 31 arranged at the upper opening are arranged on the guardrails and are arranged parallel to the guardrails, the opening mode is inward folding and opening, the maximum opening angle is 180 degrees, and when the folding guardrail is actually used, the folding guardrail can be selectively opened by 90 degrees or 180 degrees according to the structural condition of an upper floor slab; the folding guardrail 31 arranged at the lower opening is arranged on the frame body 1, is parallel to the turning pedal 4 below and is positioned at the inner side of the turning pedal 4, the opening mode is outward opening, the maximum opening angle is 270 degrees, and different opening angles are selected according to actual conditions. The folding fence 31 is used for temporary protection of the opening, ensures the safety of personnel, and can be unfolded by 90 degrees or 180 degrees according to the building structure.

Preferably, the folding guardrails 31 are arranged in a group of two and are movably connected to the frame body 1 and the guardrails through hinges.

Preferably, the unfolding angle of the folding fence 31 is 90-270 °.

Preferably, the steps 2 and the guardrails 3 are welded on the frame body 1.

The utility model discloses application method is as follows, use hoisting tool earlier to hang into steel stair from the entrance to a cave, then take out pull frame 13 and lock solid, place and open two upset footboards 4 on the entrance to a cave of lower floor's floor after, then expand folding guardrail 31 and fix according to actual conditions, can regard as interim stair to come into use after the completion, after the construction of current floor finishes, will fold guardrail 31 and upset footboard 4 and reset, hoist steel stair and transport to next floor after restoring to the throne pull frame 13, according to above-mentioned operation repetitive operation, accomplish until the construction.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.

Claims

1. The temporary steel stair for turnover use is characterized by comprising a frame body (1), steps (2), guardrails (3) and turnover pedals (4), wherein the steps (2) are arranged in the frame body (1), the guardrails (3) are arranged on the frame body (1), the guardrails (3) are positioned on the left side and the right side of the frame body (1), and the turnover pedals (4) are arranged in two and are respectively arranged at the lower opening and the upper opening of the frame body (1);

the frame body (1) comprises a bottom plate (11) and a frame (12), wherein the bottom plate (11) is arranged in the frame (12), the overturning pedal (4) arranged at the lower opening is arranged on the bottom plate (11), and the overturning pedal (4) arranged at the upper opening is arranged at the top of the step (2).

2. A temporary steel staircase for turnaround use according to claim 1, characterized in that: the bottom plate (11) is provided with a drawing frame (13), and the drawing frame (13) is oppositely arranged at the front end part and the rear end part of the bottom plate (11); be equipped with drawing groove (111) and limiting plate (112) on the side about bottom plate (11), limiting plate (112) interval sets up in drawing groove (111) outside, pull set up (13) are established in drawing groove (111).

3. A temporary steel staircase for turnaround use according to claim 2, characterized in that: the limiting plate (112) is provided with a locking bolt, and the locking bolt penetrates through the limiting plate (112) to be in contact with the drawing frame (13).

4. A temporary steel staircase for turnaround use according to claim 2, characterized in that: the drawing and pulling frame (13) is of a U-shaped structure and comprises drawing rods and end rods, the drawing rods are arranged in the drawing grooves (111), and the end rods are connected to the end portions of the two drawing rods.

5. A temporary steel stair for turnover use according to claim 4, characterized in that: the anti-falling bolt is arranged on the drawing rod and can be detachably connected to the outer end of the drawing rod.

6. A temporary steel staircase for turnaround use according to claim 1, characterized in that: the turnover pedal (4) is connected to the frame body (1) through a hinge, a locking bolt is arranged on the frame body (1), and the locking bolt is in contact with the outer end of the turnover pedal (4).

7. A temporary steel staircase for turnaround use according to claim 1, characterized in that: guardrail (3) are including marking time guardrail, rail guard and folding guardrail (31), the guardrail of marking time is established in marking time (2) both sides, the rail guard is established at frame (12) top, establish on support body (1) and rail guard folding guardrail (31).

8. A temporary steel staircase for turnaround use according to claim 7, characterized in that: the foldable guardrails (31) are arranged in two groups and respectively arranged at the lower opening and the upper opening of the frame body (1), the foldable guardrails (31) arranged at the upper opening are arranged on the guardrails, and the foldable guardrails (31) arranged at the lower opening are arranged on the frame body (1).

9. A temporary steel staircase for turnaround use according to claim 8, characterized in that: the unfolding angle of the folding guardrail (31) is 90-270 degrees.

10. A temporary steel staircase for turnaround use according to claim 7, characterized in that: the steps (2), the step guardrails and the guard rails are welded on the frame body (1).