Grooved Ladder

Abstract

The invention discloses a grooved string type ladder and belongs to the field of furniture and appliances. The grooved string type ladder comprises two ladder strings and two transverse braces, and each ladder string has an I-shaped cross section, in other words, vertical groove openings are formed in the front and back wall surfaces of the ladder strings. Transverse ripples are formed on the outer groove walls of the groove openings, and the two transverse braces are fixedly arranged between the two ladder strings and nearby the upper ends and the lower ends of the ladder strings respectively. Two foot boards in bilateral symmetry are arranged on the two ladder strings respectively through the groove openings, each foot board comprises a clamping board and a foot opening under the clamping board, a clamping claw is arranged at one end of each clamping board, an o-shaped elastic ring is embedded and clamped into each clamping claw through a vertical opening therein and is in elastic tightening contact with the inner and outer wall surfaces of the groove opening on the corresponding ladder string, and each clamping claw fits the groove opening of the corresponding ladder string. The grooved string type ladder has the advantage that a user is prevented from tumbling easily due to instability by putting two feet into the foot openings in the foot boards when ascending and descending the ladder, and is applicable to a ladder without a folding function.

Description

technical field [0001] The invention relates to furniture appliances, in particular to a trough ladder used for climbing. Background technique [0002] A ladder is a widely used climbing tool. The simpler kind of ladder is generally composed of a straight bar commonly known as the side of the ladder and a plurality of cross braces placed between the sides. Climb up or down step by step on the cross braces with low and high distribution, and when the soles of the shoes touch the cross braces, sometimes there will be a dangerous situation of standing unstable, slipping and falling, especially when you are in a higher part of the ladder. The danger is dire and needs to be eliminated and improved upon. Contents of the invention [0003] The purpose of the present invention is to provide a new technical solution of the ladder, the groove ladder, which can solve the aforementioned problems. [0004] The content of the technical solution of the present invention is as follows: ...

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