Telescopic tube for dust collector

Abstract

The invention discloses a telescopic tube for a dust collector. The telescopic tube comprises an inner tube (1) and an outer tube, wherein the inner tube (1) is inserted into the outer tube and can slide and be positioned in the outer tube; the outer tube consists of a first outer tube (21) and a second outer tube (22) which are connected with each other through a bending mechanism; a cavity for accommodating a tube body is formed between the first outer tube (21) and the second outer tube (22); a telescopic hose (5) is arranged in the outer tube; one end of the telescopic hose (5) is connected with the inner tube (1), and the other end of the telescopic hose (5) is connected with the second outer tube (22); and when the telescopic hose (5) is positioned in the cavity, the first outer tube (21) and the second outer tube (22) relatively rotate through the bending mechanism. The telescopic tube has a simple and compact structure; when bent, the telescopic tube can be telescopic; the cleaning range is wide; and the telescopic tube is convenient to operate.

Description

Technical field [0001] The invention relates to a telescopic tube, in particular to a telescopic tube for a vacuum cleaner, and belongs to the technical field of vacuum cleaner manufacturing. Background technique [0002] The function of the ordinary vacuum cleaner telescopic tube is relatively simple, because it cannot be bent and used. When cleaning low places such as sofas and beds, if you do not borrow accessories that can be bent or have corners, the user must bend or squat down. . Similarly, if the cleaning location is higher than the height of the human arm, such as cleaning the closet, the top of the bookshelf, etc., if you do not borrow accessories that can be bent or have corners, the cleaning tip cannot touch the surface to be cleaned. As a result, users cannot perform cleaning, which limits the scope of use of cleaning tools. [0003] There are also accessories that can be bent in the prior art, but they cannot be stretched, see publication number CN 101491423A, which...

AI Technical Summary

Problems solved by technology

[0002] Ordinary vacuum cleaner telescopic tube has a single function because it cannot be bent for use. When cleaning low places such as sofas and beds, users have to bend or squat down to operate without borrowing accessories that can be bent or have corners.

Similarly, if the cleaning position is higher than the height of the human arm, for example: cleaning the closet, the top of the bookshelf, etc., if you do not borrow accessories that can be bent or have corners, the cleaning nozzle cannot touch the surface to be cleaned. Make it impossible for users to clean up, limiting the scope of use of cleaning tools

[0003] In the prior art, there are also accessories that can be bent, but they cannot be stretched. Refer to the publication number CN 101491423A, which discloses a reconfigurable airflow extension rod

The defect of this technical solution is that the length of the bending tube itself cannot be changed, and another telescopic tube is needed to realize the length change, which brings inconvenience to the user's collection, storage and operation

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