CN114934743A

CN114934743A - Drawing type folding stair

Info

Publication number: CN114934743A
Application number: CN202210605498.9A
Authority: CN
Inventors: 阮一卿
Original assignee: Shanghai Zuoren Culture Communication Co Ltd
Current assignee: Shanghai Zuoren Culture Communication Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-08-23

Abstract

The invention discloses a pull type folding stair suitable for a new energy dining car. The folding stair comprises a guide rail, a guide wheel shaft, an upper pedal support, an upper pedal fixing bolt, an upper pedal cross brace, an upper pedal, stair legs, a pedal pin shaft, a pedal brace and a pedal. The upper support, the lower support and the stair treads are connected with each other through the rotary bolts, and the folding and the opening and the closing of the stair are realized through position movement. Folding stair can push the slide rail storehouse under fold condition and accomodate the realization and accomodate and protect. The stair has the advantages that the floor area of the stair is reduced, the convenience in use of the stair is increased, the problem of stair accommodation is solved, and the service life of the stair is prolonged.

Description

Drawing type folding stair

Technical Field

The invention relates to the field of equipment related to new energy automobile manufacturing, in particular to a drawing stair of a new energy dining car.

Background

The fabricated devices are currently in widespread use in automotive manufacturing, particularly in new energy vehicles. Under the influence of policies of encouraging night economy and strictly preventing novel coronavirus, special vehicles such as dining cars and motor homes are more diversified in use, and the demand is gradually increased.

The use space of the special vehicle has a height difference with the ground, the user of the vehicle is inconvenient to get on or off the vehicle, and the use space of the special vehicle is limited, so that the special vehicle is inconvenient to carry and move the step ladder.

The floor in the carriage of the dining car is about 80 cm higher than the ground, and the operator stands in the car to operate, so that the height difference exists between the operator and the consumer, and communication is not facilitated.

Disclosure of Invention

In order to solve the problems, the invention discloses a pull type folding stair mode for square bin storage. The pull-type folding stair comprises a guide rail, a guide wheel shaft, an upper pedal support, an upper pedal cross brace, a pedal pin shaft, a stair leg, a pedal pin shaft and a pedal brace. The stair legs and the stair treads are hinged through the pedal pin shafts, and folding and opening and closing of the stairs are achieved through rotation. Folding stair can push the slide rail storehouse under fold condition and accomodate the realization and accomodate and protect.

Optionally, the guide rail is formed by welding U-shaped channel steel materials, the guide wheel shaft is limited and moved inside, and meanwhile the guide wheel shaft is protected to be prevented from being damaged and deformed due to external force extrusion by certain strength. After other components are pushed into the guide rail, all the components are completely concentrated at the middle part of the U-shaped channel steel material, so that the space is saved.

Alternatively, the guide rail may be mounted in-line within the elevated plane. The planar usage space of eminence can not receive the folding stair of pull formula influence, can pile up article, also can the personnel of standing become operating space.

Optionally, the stair legs are rotatable in a plane perpendicular to the ground by articulation of the stair legs, upper step supports, upper step cross braces, and when rotated to be parallel to the ground, the stair legs are parallel to the upper surface of the upper steps.

Alternatively, by rotating the stair legs, the stair legs can be pushed completely into the guide rail in the direction of the opening of the guide rail when they are parallel to the upper surface of the upper step. The stair can be conveniently and quickly integrated into a smaller space, so that the space is saved, the folding stair is protected, and the loss of the stair caused by exposure to the sun and rain is avoided. Avoid stair transport, saved the manpower, avoided the loss of property that probably causes of colliding with in the transport.

Optionally, the front half part of the upper pedal bracket can extend out of the guide rail, and the rear half part of the upper pedal bracket is limited in the guide rail. When the stair is used, the high place is stably fixed, the stair cannot overturn and shake a little, and the safety of the stair is improved.

Alternatively, the stair legs are only in a rotatable state when the upper step is pulled out of the guide rail. The operation is simplified, the risk that the landing legs of the folding stair fall from a high position is reduced, and the safety of the stair is improved.

Drawings

Fig. 1 is an elevation view of a drawing type folding stair in a working state.

Fig. 2 is a side view of the drawing type folding stair in the working state.

Fig. 3 is an elevation view of the drawing type folding stair of the invention in a raised state.

Fig. 4 is a folded state elevation view of the pull type folding stair of the invention.

Fig. 5 is an effect view of the drawing type folding stair installed on the dining car.

Detailed Description

Embodiments of the present invention will be further described with reference to the accompanying drawings. As shown in fig. 1, the pull-out folding stair comprises 1) a guide rail, a guide wheel shaft 2) a guide wheel shaft is arranged in the pull-out folding stair, the pull-out folding stair is rigidly connected with an upper pedal support 3) and an upper pedal support, an upper pedal is rigidly connected with the upper pedal cross brace through an upper pedal fixing bolt, the pull-out folding stair is hinged with a stair leg through a pedal pin shaft 4) and an upper pedal fixing bolt 5), the upper pedal cross brace is rigidly connected with an upper pedal 6) and an upper pedal 7), the pull-out folding stair is hinged with the pedal pin shaft 8) through a pedal pin and a pedal support 9), and the pull-out folding stair is rigidly connected with a pedal 10).

Referring to fig. 5, the guide rail (1) welded by the U-shaped channel steel material is welded on the automobile floor, the guide wheel shaft (2) can slide smoothly in the guide rail (2), and when the guide wheel shaft (2) slides to the deepest part of the guide rail (1), the pull-type folding stair is in a folded state, referring to fig. 4. When the guide wheel shaft (2) slides to the outermost position of the guide rail (1), the pull type folding stair is in a working state, and refer to fig. 2.

The floor is tiled above the guide rail (1), the use space of the dining car is completely above the floor, referring to fig. 5, the existence of the guide rail (1) can not cause any influence on the use space in the carriage of the dining car, and people can walk on the floor and can also place other objects and equipment.

Referring to fig. 1 and 5, when the pull type folding stair is in a working state, the stair legs (7) are tightly connected with the guide rails (1) through the upper pedal supports (3), and the pull type folding stair and the vehicle form a stable structure without displacement in the horizontal direction.

When the stair legs (7) are in the working state shown in the figure 2, the stair legs can be lifted by manpower, and when the stair legs (7) are lifted, the pedal pin shafts in the pedal supports (3) rotate anticlockwise as round points, so that the stair legs (7) can rotate all the time, and are parallel to the ground.

When the stair legs (7) are parallel to the ground, the stair legs (7) can be pushed into the guide rails (1), and when the stair legs are pushed to the bottommost part, the pull type folding stair is in a folded state, and reference is made to fig. 4.

After the pull-type folding stair is in a furled state, the vehicle can be started to run to the next operation place, and even if the vehicle jolts in the running process, the pull-type folding stair is in a stable and safe state due to the fixation of the guide rail (1).

The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and the scope of the present invention is defined by the claims, and includes equivalents of technical features described in the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.

Claims

1. A pull type folding stair, wherein the pull type folding stair is characterized by comprising: the guide rail is fixed on a high level (1), a guide wheel shaft (2) is arranged in the guide rail, the guide wheel shaft is rigidly connected with an upper pedal support (3), the upper pedal support is rigidly connected with an upper pedal, the upper pedal is rigidly connected with an upper pedal cross brace through an upper pedal fixing bolt, the upper pedal cross brace is hinged with a stair leg (4) through a pedal pin shaft, the upper pedal fixing bolt (5) is rigidly connected with an upper pedal (6), the upper pedal (7) is rigidly connected with the stair leg through a pedal pin and a pedal pin shaft (8), the pedal pin shaft is hinged with the pedal support (9), and the pedal support is rigidly connected with a pedal (10).

2. The pull type folding stair of claim 1, wherein: the guide rail 1) is formed by welding U-shaped groove steel materials, and certain strength is provided to protect the guide wheel shaft 2) from being damaged and deformed due to external force extrusion while the guide wheel shaft 2) is limited to move inside.

3. The pull type folding stair of claim 2, wherein: the guide rail 1) can be embedded in the high plane.

4. The pull type folding stair of claim 1, wherein: through the hinging of the 7) stair legs and the 3) upper pedal bracket, the 7) stair legs can rotate along a plane vertical to the ground.

5. The pull type folding stair of claim 4, wherein: through rotating 7) the stair leg, when 7) the stair leg with the upper surface of footboard is parallel on 6), can follow 1) guide rail opening direction, push 1) the guide rail completely.

6. The pull type folding stair of claim 1, wherein: the front half part of the upper pedal bracket 3) can extend out of the guide rail 1), and the rear half part is limited in the guide rail 1).

7. The pull type folding stair of claim 6, wherein: the stair legs 7) are in a rotatable state only when the upper tread 6) is pulled out of the guide rail 1).