A chain type fully folding ladder

Abstract

The invention discloses a chain type full-folding ladder, which comprises a plurality of step units sequentially connected in a head-tail manner, wherein the step unit comprises two parallel first armrests and two parallel second armrests respectively hinged to the inner sides of the lower ends of the two first armrests, the upper ends and the lower ends of the inner sides of the second armrests are respectively provided with a horizontal rod for treading, the horizontal rod comprise a first horizontal rod and a second horizontal rod, the first horizontal rod and the second horizontal rod arehinged to each other, and can be folded along the hinging point of the first horizontal rod and the second horizontal rod, the other ends of the first horizontal rod and the second horizontal rod arerespectively hinged to the second armrests, the first armrest can rotate around the hinging point of the first armrest and the second armrest along the vertical direction of the second armrest, and the hinging positions between the second armrest and the first horizontal rod and between the second armrest and the second horizontal rod are respectively provided with a locking device capable of tensing the first horizontal rod / second horizontal rod and limiting the relative rotation of the first armrest and the second armrest. According to the present invention, the chain type full-folding ladder has advantages of convenient folding, small volume after the being folded and convenient carrying; and the chain type full-folding ladder has the chain type structure, such that the length can be arbitrarily increased or decreased, and the free overlap can be achieved.

Description

technical field [0001] The invention belongs to the field of practical tools, and in particular relates to a chain type fully folding ladder. Background technique [0002] Ladders are basically a daily tool that every household needs. Ordinary ladders basically cannot be folded, and they are large in size, long in length, and take up a lot of space. [0003] Although there are two folding ladders and ladders that slide up and down on the market, it is still very difficult to store them. After storage, they are still bulky and inconvenient to carry. Moreover, the higher the ladder, the more difficult it is to store it, and the more inconvenient it is to carry it out. Contents of the invention [0004] In view of the above problems, the present invention aims to provide a chain-type fully folding ladder that is convenient to store and carry. [0005] The technical solution of the present invention to solve the problem is: a chain type full-folding ladder, which includes a ...

AI Technical Summary

Problems solved by technology

[0002] Ladders are basically a daily tool that every household needs. Ordinary ladders can't be folded basically, and they are large in size, long in length, and take up a lot of space.

[0003] Although there are two folding ladders and ladders that slide up and down on the market, it is still very difficult to store them, and the volume is still large after storage, making it inconvenient to carry

Moreover, the higher the ladder, the more difficult it is to store it, and the more inconvenient it is to carry it out.

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