Construction elevator and working layer gap bridging device

Abstract

This utility model belongs to the field of construction elevator technology and provides a bridging device for the gap between the construction elevator and the working floor. It includes: one side of the pedal is hinged to the top of the elevator car's floor plate; the pedal is swung to extend it outwards from the elevator car, allowing the other side of the pedal to cross the gap and rest on the floor slab. The hinged side of the pedal is equipped with support feet to keep it vertical after it retracts into the elevator car; guardrails are symmetrically arranged at both ends of the pedal's tread surface and centered, so that the guardrails align with the gap after the pedal is extended outwards from the elevator car. This utility model is simple, practical, safe, reliable, and has a long service life, requiring no frequent maintenance. When the elevator reaches the working floor, the elevator door and the floor working door are opened, the pedal is extended outwards, and the outer side of the pedal rests on the working floor floor. Simultaneously, the guardrails on both sides are erected, providing vertical protection and effectively preventing objects or workers from accidentally falling.

Description

Technical Field

[0001] This utility model relates to the field of construction elevator technology, and in particular to a bridging device for the gap between the construction elevator and the working floor. Background Technology

[0002] During the installation of construction elevators on construction sites, a gap of 15-20cm is usually left to prevent the elevator car from scraping against the building facade. This gap poses a significant risk when people walk on it and materials are transported, with the potential for objects or workers to fall accidentally.

[0003] Therefore, there is a need to provide improved technical solutions that address the shortcomings of the existing technologies. Utility Model Content

[0004] The purpose of this utility model is to provide a bridging device for the gap between the construction elevator and the working floor, so as to solve the safety hazard problem that the gap reserved between the elevator car and the building facade can easily lead to the accidental fall of objects or workers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a bridging device for the gap between a construction elevator and the working floor, comprising: one side of a step plate is hinged to the top of the elevator car floor, allowing the step to be swung to extend outwards from the elevator car so that the other side of the step plate crosses the gap and rests on the floor slab; the hinged side of the step is provided with a support foot to keep the step vertical after it is retracted into the elevator car; guardrails are symmetrically arranged at both ends of the step surface and centered, so that the guardrails correspond to the gap after the step is extended outwards from the elevator car; the buffer frame includes: a zipper, a primary tension spring, and a secondary tension spring. One end of the zipper is positioned at the center of the guardrail near the swing edge of the pedal. One end of the primary tension spring is positioned on the side plate near the elevator car exit. The other end of the primary tension spring is connected to the free end of the zipper, so that after the pedal retracts into the elevator car, the primary tension spring is stretched by the zipper to cushion the guardrail. One end of the secondary tension spring is positioned on the swing edge of the pedal. The other end of the secondary tension spring is connected to the free end of the primary tension spring, so that after the pedal unfolds out of the elevator car, it simultaneously pulls the secondary tension spring and the primary tension spring to cushion itself and fall smoothly.

[0006] Preferably, the foot surface of the pedal is arched outward, and its overall shape is trapezoidal.

[0007] Preferably, the concave surface of the pedal is provided with reinforcing ribs; The reinforcing ribs are divided into crossbeams and longitudinal beams; The crossbeam is an angle plate, so that the shape of the crossbeam adapts to the sloping surface of the pedal.

[0008] Preferably, the crossbeams are arranged in pairs, with the two crossbeams positioned opposite each other on the two inner sloping surfaces of the pedal; The longitudinal beam is vertically positioned between the two transverse beams and fixed to the concave surface of the pedal.

[0009] Preferably, the support leg is fixed to the outer slope surface of the pedal hinge edge and near the end of the pedal; A hinge shaft extends outward from one side of the support leg, and the extended end of the hinge shaft extends into the hinge sleeve. The hinge sleeve is fixed to the bottom plate of the elevator car.

[0010] Preferably, the guardrail includes railings, connecting beams, and connecting plates; The railings are installed in pairs on the connecting plate, with the two railings being relatively parallel to each other, so that a connecting beam can be installed between them; The connecting plate is fixed to the pedal.

[0011] Preferably, a handle is connected between the ends of two adjacent railings that are away from the connecting plate; The handle is arched inwards in the middle and offset from the railing.

[0012] Preferably, the positioning end of the primary tension spring is fixedly hooked onto the positioning pin; The positioning pin is horizontally fixed to the side plate of the elevator car.

[0013] Compared with the closest existing technology, the technical solution of this utility model embodiment has the following beneficial effects: This utility model is simple, practical, safe, reliable, and has a long service life. It does not require frequent maintenance. When the elevator arrives at the working floor, the elevator door and the floor working door are opened, the steps are unfolded outward, and the outer side of the steps rests on the floor of the working floor. At the same time, the guardrails on both sides are erected to provide vertical protection and effectively prevent objects or workers from falling accidentally. Attached Figure Description

[0014] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein: Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This utility model Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 A schematic diagram from the reverse perspective.

[0015] In the diagram: 1. Pedal; 2. Support leg; 3. Zipper; 4. Primary tension spring; 5. Secondary tension spring; 6. Crossbeam; 7. Longitudinal beam; 8. Hinge shaft; 9. Hinge sleeve; 10. Railing; 11. Connecting beam; 12. Connecting plate; 13. Handle; 14. Positioning pin. Detailed Implementation

[0016] This utility model provides a bridging device for the gap between the construction elevator and the working floor, which can prevent construction materials, objects or workers from accidentally falling from the gap between the elevator and the working floor, and effectively improve the safety of the construction elevator in transporting materials.

[0017] Example, refer to Figures 1-4 This device includes: a pedal 1, a guardrail, and a buffer frame. One side of the pedal 1 is hinged to the top of the elevator car floor. By swinging the pedal 1, it can be extended outward from the elevator car so that the other side of the pedal crosses the gap and rests on the floor slab. The tread surface of the pedal 1 is arched outward and is provided with anti-slip ridges. The pedal 1 is made of steel plate, and the anti-slip ridges are usually stamped. The pedal 1 is trapezoidal in shape, and the trapezoidal concave surface of the pedal 1 is provided with reinforcing ribs. The reinforcing ribs are divided into crossbeams 6 and longitudinal beams 7. The crossbeams 6 are angle plates so that the shape of the crossbeams 6 can adapt to the sloping surface of the pedal 1. The crossbeams 6 are arranged in pairs, with the two crossbeams 6 facing each other on the two inner sloping surfaces of the pedal 1. That is, the included angle of the crossbeams 6 is aligned with the inner sloping surface of the pedal 1 and welded to it. The longitudinal beams 7 are vertically welded and fixed between the two crossbeams 6 and welded and fixed to the concave surface of the pedal 1. The longitudinal beams 7 are channel steel.

[0018] Both ends of the hinge side of the pedal 1 are provided with support feet 2 so that the pedal 1 can be kept vertical after being retracted into the elevator car. Based on the vertical state of the pedal 1, the guardrail installed on the pedal 1 will not come into contact with the floor of the elevator car and collide. Specifically, the support feet 2 are welded and fixed to the outer slope surface of the hinge side of the pedal 1 and near the end of the pedal 1. The pedal 1 is an irregular rectangle, and its side length can be flexibly adjusted by cutting according to the actual standard during assembly. A hinge shaft 8 is horizontally welded to the outer side of the support feet 2. The end of the hinge shaft 8 extends into the hinge sleeve 9. A mounting plate is welded to the bottom of the hinge sleeve 9, and the mounting plate is fixed to the floor of the elevator car by bolts.

[0019] The guardrails are symmetrically arranged at both ends and in the center of the step surface of the pedal 1 so that the guardrails correspond to the gap after the pedal 1 is extended outwards from the elevator car. The guardrails include railings 10, connecting beams 11 and connecting plates 12. The railings 10 and connecting beams 11 can be made of metal square tubes. The railings 10 are welded to both ends of the connecting plate 12 in pairs, and a part of the end of the connecting plate 12 is reserved so as to be fixed to the pedal 1 by bolts. The two railings 10 are relatively parallel to each other so that the connecting beam 11 can be welded between them. If the longitudinal beam 7 in the concave surface of the pedal 1 is opposite to the connecting plate 12, then the connecting plate 12, the pedal 1 and the longitudinal beam 7 are fixed together by bolts. The length of the pedal 1 is consistent with the width of the step surface of the pedal 1 to prevent it from protruding.

[0020] Handles 13 are welded between the ends of two adjacent railings 10 away from the connecting plate 12. The middle of the handle 13 is arched inward and offset from the railing 10 to provide workers with sufficient gripping space and prevent workers' hands from scraping against the side panel of the elevator car and getting injured.

[0021] The buffer frame includes a zipper 3, a primary tension spring 4, and a secondary tension spring 5. The zipper 3 is a chain, with one end positioned at the center of the guardrail near the swing edge of the pedal 1. An earring is welded to this center position, and the head of the zipper 3 is connected to the earring. One end of the primary tension spring 4 is positioned on the side plate near the elevator car exit, and this positioning end is fixedly hooked onto a positioning pin 14. The positioning pin 14 is horizontally welded and fixed to the side plate of the elevator car. The other end of the primary tension spring 4 is connected to the free end of the zipper 3, which can be directly welded or looped together, so that when the pedal 1 retracts into the elevator car, the primary tension spring is stretched by the zipper 3 to buffer the guardrail. This design ensures smoother movement of the guardrail, preventing it from impacting the elevator car. One end of the secondary tension spring 5 is positioned on the swing edge of the pedal 1, allowing the head of the pull ring to be directly welded to the outer slope of the swing edge of the pedal 1. The other end of the secondary tension spring 5 is connected to the free end of the primary tension spring 4, so that when the pedal 1 extends outward from the elevator car, it simultaneously pulls the secondary tension spring 5 and the primary tension spring 4 to cushion its own descent, preventing the pedal 1 from impacting the floor. This also protects the guardrail and pedal 1, preventing them from colliding with other objects and deforming them. Furthermore, it makes the connection between the guardrail and pedal 1 more stable, less prone to loosening, and has a longer service life.

[0022] The bridging device provided in this embodiment is simple, practical, safe, reliable, and has a long service life. It does not require frequent maintenance. When the elevator arrives at the working floor, the elevator door and the floor working door are opened, and the step 1 is unfolded outward. The outer side of the step 1 rests on the floor of the working floor, and the guardrails on both sides are erected to provide vertical protection and effectively prevent objects or workers from falling accidentally.

[0023] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bridging device for the gap between a construction elevator and the working floor, characterized in that, include: The pedal has one side hinged to the top of the elevator car floor, so that the pedal can be swung to extend it out of the elevator car so that the other side can cross the gap and rest on the floor. The hinged side of the pedal is provided with a foot so that the pedal can be kept vertical by the foot after it is retracted into the elevator car. The guardrails are symmetrically placed at both ends of the step surface of the tread and centered, so that the guardrails correspond to the gaps after the treads are extended outwards from the elevator car. The buffer frame includes a zipper, a primary tension spring, and a secondary tension spring. One end of the zipper is positioned at the center of the guardrail near the swing edge of the pedal. One end of the primary tension spring is positioned on the side plate near the elevator car exit. The other end of the primary tension spring is connected to the free end of the zipper, so that when the pedal retracts into the elevator car, the zipper stretches the primary tension spring to buffer the guardrail. One end of the secondary tension spring is positioned on the swing edge of the pedal. The other end of the secondary tension spring is connected to the free end of the primary tension spring, so that when the pedal unfolds out of the elevator car, it simultaneously pulls the secondary and primary tension springs to buffer itself and fall smoothly.

2. The bridging device for the gap between the construction elevator and the working floor according to claim 1, characterized in that, The foot pedal has an outwardly arched surface, and its overall shape is trapezoidal.

3. The bridging device for the gap between the construction elevator and the working floor according to claim 2, characterized in that, The pedal has reinforcing ribs in its concave surface; The reinforcing ribs are divided into crossbeams and longitudinal beams; The crossbeam is an angle plate, so that the shape of the crossbeam adapts to the sloping surface of the pedal.

4. The bridging device for the gap between the construction elevator and the working floor according to claim 3, characterized in that, The crossbeams are arranged in pairs, with the two crossbeams positioned opposite each other on the two inner slopes of the pedal. The longitudinal beam is vertically positioned between the two transverse beams and fixed to the concave surface of the pedal.

5. The bridging device for the gap between the construction elevator and the working floor according to claim 4, characterized in that, The support leg is fixed to the outer slope of the pedal hinge edge and near the end of the pedal; A hinge shaft extends outward from one side of the support leg, and the extended end of the hinge shaft extends into the hinge sleeve. The hinge sleeve is fixed to the bottom plate of the elevator car.

6. The bridging device for the gap between the construction elevator and the working floor according to claim 1, characterized in that, The guardrail includes railings, connecting beams, and connecting plates; The railings are installed in pairs on the connecting plate, with the two railings being relatively parallel to each other, so that a connecting beam can be installed between them; The connecting plate is fixed to the pedal.

7. The bridging device for the gap between the construction elevator and the working floor according to claim 6, characterized in that, A handle is connected between the ends of two adjacent railings that are furthest from the connecting plate; The handle is arched inwards in the middle and offset from the railing.

8. The bridging device for the gap between the construction elevator and the working floor according to claim 1, characterized in that, The positioning end of the primary tension spring is fixedly hooked onto the positioning pin; The positioning pin is horizontally fixed to the side plate of the elevator car.

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