Adjustable ladder stand for concrete mixer

Abstract

The invention relates to the technical field of adjustable crawling ladders, in particular to an adjustable crawling ladder for a concrete mixer truck, which comprises a mounting plate, two fixing plates are fixedly mounted on the outer wall of one side of the mounting plate, an angle control assembly is arranged on one side of each second ejector rod, and a limiting structure is arranged on one side of a telescopic rod. The first ejector rod is rotated outwards, the sliding block slides along the inner wall of the arc-shaped rail, specifically, the locking rod is pushed out of a locking hole formed in one side of the arc-shaped rail, then the first ejector rod and the second ejector rod are rotated, and the locking mechanism and the adjusting control assembly are arranged on the outer wall of one side of the sleeve rod and the outer wall of one side of the second ejector rod. Finally, the locking rod is pushed outwards under the action of the first spring, the locking rod is inserted into the locking hole in the other position again, angle setting and locking of the ladder stand are achieved at the moment, personnel can easily climb up and down through the design, the use difficulty is reduced, storage is convenient when the ladder stand is not used, the occupied space is reduced, and the ladder stand is convenient to use. And the practical convenience is improved.

Description

technical field [0001] The invention relates to the technical field of adjustable ladders, in particular to an adjustable ladder for a concrete mixer truck. Background technique [0002] Concrete mixer truck is a commonly used engineering vehicle. The height of the concrete mixer truck is high, and climbing ladders are needed when climbing. After a long time of use, not only the welded part of the ladder is easy to crack, but also the installation of the ladder with a welded structure is inconvenient. [0003] Aiming at the above problems, Chinese Patent Publication No. CN216034100U discloses a concrete mixer truck assembled ladder assembly, which includes a base, a rear bracket is arranged on the back of the base, and a connecting beam is arranged above the rear bracket. The support arm is connected with both sides of the connecting beam, and the utility model reduces the difficulty of the early installation and the later disassembly and maintenance of the climbing ladder ...

AI Technical Summary

Problems solved by technology

[0005] (1) The existing ladders are fixed, and in order to save space, the straight-up and straight-down method is generally used. First of all, although this method saves space, the straight-up and straight-down method is more laborious and increases the difficulty of use;

[0006] (2) The existing ladders are inconvenient to fold when not in use, resulting in a large space occupation, while some of the ladders that can be removed have cumbersome disassembly and assembly steps, which are inconvenient to use and affect work efficiency

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