FOLDABLE IRON LADDER

Abstract

A foldable iron ladder comprises two front leg pipes, two rear leg pipes, a stand platform, and a climbing platform. Two sides of a front portion of the stand platform are pivotally connected to the two front leg pipes. Two sides of a middle portion of the stand platform are pivotally connected to first ends of two connecting pieces. Second ends of the two connecting pieces are pivotally connected to the two rear leg pipes. The climbing platform is located below the stand platform. The climbing platform is connected between the two front leg pipes. The climbing platform comprises a flanged edge extending along all sides thereof in an enclosed shape and extending downward greater than 2 centimeters. The climbing platform and the two front leg pipes are made of iron and are welded together. When in an opened state, the stand platform and the climbing platform are horizontally arranged.

Claims

1. A foldable iron ladder, comprising: two front leg pipes parallel to each other in a left-and-right direction, two rear leg pipes parallel to each other in the left-and-right direction, a stand platform, and one or more climbing platforms, wherein: each of the two front leg pipes and a corresponding one of the two rear leg pipes on a same side are pivotally connected to each other in a splayed shape, two sides of a front portion of the stand platform are pivotally connected to the two front leg pipes, two sides of a middle portion of the stand platform are pivotally connected to first ends of two connecting pieces respectively, second ends of the two connecting pieces are pivotally connected to the two rear leg pipes respectively, a connecting rod is connected between the two rear leg pipes for supporting the stand platform, the one or more climbing platforms are located below the stand platform, the one or more climbing platforms are connected between the two front leg pipes, each of the one or more climbing platforms comprises a flanged edge extending along all sides thereof in an enclosed shape, a height of the flanged edge is larger than 2 centimeters, the one or more climbing platforms and the two front leg pipes are made of iron, the flanged edge is welded to the two front leg pipes, and when the stand platform and the one or more climbing platforms are in an opened state: the stand platform and the one or more climbing platforms are horizontally arranged, and the stand platform is supported on the connecting rod.

2. The foldable iron ladder according to claim 1, wherein: a front side and a rear side of each of the two front leg pipes are respectively welded to the flanged edge.

3. The foldable iron ladder according to claim 1, wherein: a rear side of a bottom portion of the stand platform is disposed with an elastic rotating locking buckle, and the elastic rotating locking buckle is locked to the connecting rod when the stand platform is in the opened state.

4. The foldable iron ladder according to claim 1, wherein: the flanged edge comprises one or more through holes.

5. The foldable iron ladder according to claim 4, wherein: the two front leg pipes cover the one or more through holes.

6. The foldable iron ladder according to claim 1, wherein: the foldable iron ladder further comprises a U-shaped handrail, and two ends of the U-shaped handrail are respectively connected to the two front leg pipes in an insertion member.

7. The foldable iron ladder according to claim 6, wherein: a top end of each of the two front leg pipes is disposed with a sleeve, and a top end of each of the two rear leg pipes is pivotally connected to the sleeve.

8. The foldable iron ladder according to claim 1, wherein: spacers are disposed at a pivoting position between the two sides of the front portion of the stand platform and the two front leg pipes.

9. The foldable iron ladder according to claim 2, wherein: a rear side of a bottom portion of the stand platform is disposed with an elastic rotating locking buckle, and the elastic rotating locking buckle is locked to the connecting rod when the stand platform is in the opened state.

10. The foldable iron ladder according to claim 2, wherein: the flanged edge comprises one or more through holes.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0015] FIG. 1 illustrates a first perspective view of a foldable iron ladder.

[0016] FIG. 2 illustrates a second perspective view of the foldable iron ladder.

[0017] FIG. 3 illustrates an exploded view of the foldable iron ladder in FIG. 1.

[0018] FIG. 4 illustrates a side view of the foldable iron ladder in FIG. 1.

[0019] FIG. 5 illustrates a perspective view of the foldable iron ladder when the foldable iron ladder is in an opened state.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] The present disclosure will be further described below in combination with the accompanying drawings and embodiments.

[0021] Referring to FIG. 1 to FIG. 4, a foldable iron ladder comprises two front leg pipes 10 parallel to each other in a left-and-right direction, two rear leg pipes 20 parallel to each other in the left-and-right direction, a stand platform 30, and one or more climbing platforms 40. Each of the two front leg pipes 10 and a corresponding one of the two rear leg pipes 20 on a same side are pivotally connected to each other in a splayed shape to achieve unfolding and folding. The stand platform 30 is located on an upper portion of the foldable iron ladder, and the one or more climbing platforms 40 are located below the stand platform 30. It can be understood that the one or more climbing platforms 40 can be a single climbing platform 40 or a plurality of climbing platforms 40. Referring to FIG. 5 for example, when there is a need for increasing a height of the foldable iron ladder, the number of the one or more climbing platforms 40 can be increased for a user climbing up the one or more climbing platforms 40 step-by-step so as to arrive at the stand platform 30.

[0022] Two sides of a front portion of the stand platform 30 are pivotally connected to the two front leg pipes 10, two sides of a middle portion of the stand platform 30 are pivotally connected to first ends of two connecting pieces 50 respectively, and second ends of the two connecting pieces 50 are pivotally connected to the two rear leg pipes 20 respectively. Existing technology can be referenced regarding mechanism principles of the above-mentioned structures.

[0023] A connecting rod 60 is connected between the two rear leg pipes 20 for supporting the stand platform 30. The one or more climbing platforms 40 are connected between the two front leg pipes 10. Each of the one or more climbing platforms 40 comprises a flanged edge 42 extending along all sides thereof in an enclosed shape, and a height of the flanged edge 42 is larger than 2 centimeters. The one or more climbing platforms 40 and the two front leg pipes 10 are made of iron. In this embodiment, the two rear leg pipes 20 and the stand platform 30 are also made of iron. The flanged edge 42 is welded to the two front leg pipes 10, and an elongated welding line is formed at a welding position between the flanged edge 42 and the two front leg pipes 10. When the stand platform 30 and the one or more climbing platforms 40 are in an opened state, the stand platform 30 and the one or more climbing platforms 40 are horizontally arranged, and the stand platform 30 is supported on the connecting rod 60. Since the one or more climbing platforms 40 are horizontally arranged when in the opened state, the one or more climbing platforms 40 are welded to the two front leg pipes 10 in an inclined state.

[0024] Preferably, a front side and a rear side of each of the two front leg pipes 10 are respectively welded to the flanged edge 42.

[0025] Preferably, a rear side of a bottom portion of the stand platform 30 is disposed with an elastic rotating locking buckle 32, and the elastic rotating locking buckle 32 is locked to the connecting rod 60 when the stand platform is in the opened state.

[0026] Preferably, the flanged edge 42 comprises one or more through holes, and the one or more through holes are located on a left side and a right side of the flanged edge 42, so that the two front leg pipes 10 can cover the one or more through holes.

[0027] Preferably, the foldable iron ladder further comprises a U-shaped handrail 70, and two ends of the U-shaped handrail 70 are respectively connected to the two front leg pipes 10 in an insertion member.

[0028] Preferably, a top end of each of the two front leg pipes 10 is disposed with a sleeve 80, and a top end of each of the two rear leg pipes 20 is pivotally connected to the sleeve 80.

[0029] Preferably, spacers 90 are disposed at a pivoting position between the two sides of the front portion of the stand platform 30 and the two front leg pipes 10.

[0030] In this embodiment, rivets are used for a pivoting connection between the stand platform 30 and the two front leg pipes, a pivoting connection between the stand platform and the two connecting pieces 50, and a pivoting connection between the two connecting pieces 50 and the rear leg pipes.

[0031] The aforementioned embodiments are merely some embodiments of the present disclosure, and the scope of the disclosure is not limited thereto. Thus, it is intended that the present disclosure cover any modifications and variations of the presently presented embodiments provided they are made without departing from the appended claims and the specification of the present disclosure.