Foldable ladder

Abstract

The utility model discloses a kind of foldable ladders, belong to ladder technical field, including ladder base, ladder main body and connecting plate, the first connecting column is equipped in the inner wall of ladder base, the second connecting column is equipped in the outer wall of ladder main body, the connecting plate one end connects the first connecting column, the other end connects the second connecting column, the inner wall of ladder base is also equipped with limit platform, the limit platform is located in the side of the first connecting column, when the ladder main body protrudes the surface of the ladder base, the limit platform is against the connecting plate. The ladder can be folded and stored, occupies small space, the whole machine width becomes smaller after folding, more road conditions transportation requirements are adapted.

Description

Technical Field

[0001] This utility model relates to the field of ladder technology, and in particular to a foldable ladder. Background Technology

[0002] In the field of mobile equipment maintenance, ladders have become indispensable auxiliary tools to meet the maintenance needs of operators for components such as power packs on the top platform of the equipment. However, traditional installation-type ladders, limited by the width of the entire machine during transport, have revealed many drawbacks in practical applications. Due to width restrictions during transportation, installation-type ladders must be disassembled during transport. This operation is not only cumbersome, increasing labor and time costs, but also prone to damage or loss of ladder components during disassembly and installation, affecting the efficiency and quality of equipment maintenance. Moreover, frequent disassembly and installation reduce the lifespan of the ladder, increasing the overall cost of equipment maintenance. Utility Model Content

[0003] The main purpose of this invention is to provide a foldable ladder to solve the ladder requirements of mobile maintenance platforms and the width limitation of the entire machine. For maintenance purposes, operators need to climb onto the platform at the top of the machine to maintain the power pack. Traditional installation ladders, limited by the width of the entire machine during transport, require disassembly for transport, making operation extremely inconvenient. This invention, however, can be folded for storage, occupying less space, and the overall width of the machine is reduced after folding, adapting to more road conditions and transportation requirements.

[0004] To achieve the above objectives, this utility model proposes a foldable ladder, comprising a ladder base, a ladder body, and a connecting plate. The inner wall of the ladder base is provided with a first connecting column, and the outer wall of the ladder body is provided with a second connecting column. One end of the connecting plate is connected to the first connecting column, and the other end is connected to the second connecting column. The inner wall of the ladder base is also provided with a limiting platform, which is located on one side of the first connecting column. When the ladder body extends out of the surface of the ladder base, the limiting platform abuts against the connecting plate.

[0005] Optionally, the ladder body includes side panels and several steps, the steps connecting the two side panels together.

[0006] Optionally, the side plate is provided with a positioning post, and a locking block is sleeved on the positioning post, the locking block being able to rotate about the positioning post as an axis.

[0007] Optionally, the ladder base is provided with a locking groove, and when the ladder body is retracted into the ladder base, the locking block can be rotated and locked into the locking groove.

[0008] Optionally, each pedal has several through holes.

[0009] Optionally, handrails are provided on both sides of the ladder base, and the ladder body is located between the handrails on both sides.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model discloses a foldable ladder comprising a ladder base, a ladder body, and a connecting plate. The inner wall of the ladder base has a first connecting column, and the outer wall of the ladder body has a second connecting column. One end of the connecting plate is connected to the first connecting column, and the other end is connected to the second connecting column. The inner wall of the ladder base also has a limiting platform located to one side of the first connecting column. When the ladder body extends beyond the surface of the ladder base, the limiting platform abuts against the connecting plate. This ladder can be folded for storage, occupies little space, and its overall width decreases after folding, making it suitable for various road conditions and transportation requirements. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the foldable ladder of this utility model extending from the ladder base;

[0014] Figure 2 This is a schematic diagram of the structure of the foldable ladder of this utility model, where the main body of the ladder retracts into the ladder base.

[0015] Figure 3 for Figure 1 A structural schematic diagram of the connecting plate in the middle.

[0016] Explanation of icon numbers:

[0017]

[0018]

[0019] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0023] This utility model proposes a foldable ladder 100.

[0024] Please see Figures 1-3 In one embodiment of this utility model, the foldable ladder 100 includes a ladder base 10, a ladder body 20, and a connecting plate 30. The inner wall of the ladder base 10 is provided with a first connecting post 14, and the outer wall of the ladder body 20 is provided with a second connecting post 23. One end of the connecting plate 30 is connected to the first connecting post 14, and the other end is connected to the second connecting post 23. The inner wall of the ladder base 10 is also provided with a limiting platform 15, which is located on one side of the first connecting post 14. When the ladder body 20 extends out of the surface of the ladder base 10, the limiting platform 15 abuts against the connecting plate 30 to limit the ladder body 20.

[0025] In this embodiment, the ladder base 10, the ladder body 20, and the connecting plate 30 are all manufactured from Q355B steel. The ladder base 10 and the ladder body 20 are welded components. The ladder base 10 includes a base plate 11, two long plates 12, and a welding plate 13. The two long plates 12 are welded to the two side edges of the base plate 11. The welding plate 13 is located at the top of the base plate 11 and welded to the two side long plates 12 to improve stability. Handrails 17 are provided on both sides of the ladder base 10. The ladder body 20 is located between the handrails 17 on both sides. The handrails 17 are mounted on the long plates 12, and the two can be connected by bolts and nuts for easy disassembly.

[0026] When not in use, the ladder body 20 retracts into the ladder base 10, reducing the overall width and facilitating transportation. When needed, the ladder body 20 is pulled outwards, and the connecting plate 30 rotates 90° counterclockwise to abut against the limiting platform 15. The limiting platform 15 prevents the connecting plate 30 from continuing to rotate, allowing the ladder body 20 to extend beyond the ladder base 10. Furthermore, since the user steps on the ladder body 20 during use, gravity prevents the connecting plate 30 from automatically rotating clockwise and causing the ladder body 20 to retract back into the ladder base 10.

[0027] In one embodiment of this utility model, the ladder body 20 includes side plates 21 and a plurality of pedals 22, the pedals 22 connecting the two side plates 21 together; the side plates 21 are provided with positioning posts 25, and the positioning posts 25 are fitted with locking blocks 40, the locking blocks 40 being rotatable about the positioning posts 25. The ladder base 10 is provided with locking grooves 16, and when the ladder body 20 is retracted into the ladder base 10, the locking blocks 40 can be rotated and locked into the locking grooves 16.

[0028] In this embodiment, each step 22 is spaced apart, which is equivalent to a step, making it easier for people to climb. Each step 22 is provided with several through holes 24, which saves raw materials as much as possible without affecting the load-bearing capacity, and can also increase the friction with the sole of the shoe, thus playing a role in preventing slipping.

[0029] It is understood that when the ladder body 20 is retracted into the ladder base 10, the locking groove 16 is aligned with the locking block 40, and the locking block 40 can be rotated into the locking groove 16. When the locking block 40 is in the locking groove 16, the connecting plate 30 cannot rotate, which can prevent the ladder body 20 from automatically extending out of the ladder base 10 during transportation, reduce unnecessary collisions, and reduce wear.

[0030] In use: First, fix the ladder base 10 to the side wall of the power pack platform, then pull the ladder body 20 outward, and rotate the connecting plate 30 counterclockwise by 90° to abut against the limiting platform 15, so that the ladder body 20 extends out of the ladder base 10; when not in use, lift the ladder body 20 and press it into the ladder base 10. After folding, the width of the whole machine becomes smaller, which can adapt to more road conditions and transportation requirements.

[0031] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A foldable ladder, characterized in that, The system includes a ladder base, a ladder body, and a connecting plate. The inner wall of the ladder base is provided with a first connecting column, and the outer wall of the ladder body is provided with a second connecting column. One end of the connecting plate is connected to the first connecting column, and the other end is connected to the second connecting column. The inner wall of the ladder base is also provided with a limiting platform, which is located on one side of the first connecting column. When the ladder body extends out of the surface of the ladder base, the limiting platform abuts against the connecting plate.

2. The foldable ladder as described in claim 1, characterized in that: The ladder body includes side panels and several pedals, which connect the two side panels together.

3. The foldable ladder as described in claim 2, characterized in that: The side plate is provided with a positioning post, and a locking block is fitted on the positioning post. The locking block can rotate around the positioning post as an axis.

4. The foldable ladder as described in claim 3, characterized in that: The ladder base is provided with a locking groove. When the ladder body is retracted into the ladder base, the locking block can be rotated and locked into the locking groove.

5. The foldable ladder as described in claim 2, characterized in that: Each pedal has several through holes.

6. The foldable ladder as described in claim 1, characterized in that: The base of the ladder is provided with handrails on both sides, and the main body of the ladder is located between the handrails on both sides.

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