Patent ID: 7653960
Filing Date: 2010-02-02
Classification: A46B

Abstract:
1. A cleaning brush structure, comprising: an outer sheath, an inner sheath, and an actuating body; wherein the outer sheath, mounted to an outer side of the inner sheath, has an elongated positioning slot disposed at a circumferential surface of one side thereon, and a plurality of protrusive points and concaved points horizontally extending at both longitudinal inner edges of the positioning slot thereon; the plurality of protrusive points and the concaved points of the positioning slot being alternately arranged in a symmetrical manner to form a narrower restraining space defined by the plurality of protrusive points and a wider accommodation space defined by the concaved points respectively; the inner sheath having an insert hole vertically indented at the circumferential surface of one end thereon to match with the positioning slot of the outer sheath thereby; the insert hole of the inner sheath having a plurality of stop blocks protruding in a middle section thereon, and a vertical guide recess defining each adjacent side of the stop blocks thereon respectively; the actuating body being equipped with a guiding push plate, and an insert portion with a positioning section extending at the bottom of the guiding push plate thereof to be stably fitted to the insert hole of the inner sheath thereby, the positioning section of the insert portion thereof being precisely clamped and restrained by the concaved and protrusive points of the positioning slot respectively to provide stepwise adjustment effect thereby; depending on the depth and area of the article to be cleaned, the guiding push plate being slidable forwards or backwards accordingly to adjust the position of the inner sheath step by step so as to ensure an accurate extension of a brush body released in desirable length for a cleaning operation thereof; the actuating body being stably located to avoid the risk of sliding around during the cleaning operation, and capable of being dismantled for replacement.