Folding ladder capable of being contracted

Abstract

The invention relates to the technical field of ladders, and discloses a folding ladder capable of being contracted. The folding ladder comprises a first ladder part, a second ladder part and a thirdladder part, wherein the first ladder part, the second ladder part and the third ladder part all comprise two supporting rods and multiple pedals; the upper ends of the two supporting rods of the first ladder part are provided with first hinged sheets, the lower ends of the two supporting rods of the second ladder part are provided with second hinged sheets, the first hinged sheets comprise firstfixing sheets and first ear sheets, the second hinged sheets comprise second fixing sheets and second ear sheets, the first fixing sheets and the second fixing sheets are all fixed on the outer wallsof the corresponding supporting rods, the first ear sheets tightly fit the lower portions of the second ear sheets, the first ear sheets and the second ear sheets are provided with hinged holes respectively, and one hinged column runs through the corresponding hinged holes of each first ear sheet and corresponding second ear sheet; the lower portion of the third ladder part is hinged with the upper portion of the second ladder part. The folding ladder has the advantages that the structure is simple, the production cost is low, the folding ladder can be rapidly contracted and folded, when the folding ladder is contracted, the size is small, and storage and carrying are convenient.

Description

technical field [0001] The invention relates to the technical field of ladders, in particular to a collapsible folding ladder. Background technique [0002] Ladders are widely used in all walks of life and can help operators climb from low places to high places. Current ladders generally include two parallel columns and a plurality of running bars installed between the two columns at intervals. In order to make the ladder easy to carry and store, some foldable ladders have appeared, which mainly divide the running bars into two parts. The two sections are connected by a hinge, so that the two sections can rotate relative to each other to realize the folding of the ladder. When you need to use a ladder, unfold the ladder, and the hinges will open with the unfolding action of the ladder. When you step on the pedal with your feet, the hinge will bear a huge pulling force to keep the pedal from being bent. Parts to realize the folding function of the ladder, it is easy to tear...

AI Technical Summary

Problems solved by technology

When you need to use a ladder, unfold the ladder, and the hinges will open with the unfolding action of the ladder. When you step on the pedal with your feet, the hinge will bear a huge pulling force to keep the pedal from being bent. Parts to realize the ladder folding function, it is easy to tear the connection between the hinge and the step bar due to excessive pressure, resulting in a fall accident

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