Linear guide rail sliding block with protective structure

Abstract

The invention relates to the field of linear guide rails, and provides a linear guide rail sliding block with a protective structure, which comprises a sliding block main body and a guide rail on which the sliding block main body slides, the sliding block further comprises hollow blocks detachably arranged at the two ends of the sliding block body, notches matched with the guide rails are formed in the lower portions of the hollow blocks, and pressurizing cavities and the like are formed in the hollow blocks. Wherein the pressurizing chamber is communicated with the gas injection chamber; the dust scraping device further comprises a dust scraping rubber sleeve attached to the notch in the lower portion of the hollow block, and an air groove is formed in the dust scraping rubber sleeve. Through the arrangement of a piston plate and an elastic piece I, gas in a pressurizing cavity and a gas injection cavity can be injected into a dust scraping rubber sleeve, so that the dust scraping rubber sleeve can continuously expand and cling to a guide rail, dust and foreign matters are effectively scraped when the sliding block main body slides along the guide rail, and even if the surface layer of the dust scraping rubber sleeve is abraded, the dust scraping rubber sleeve is prevented from falling off. And a good cleaning effect can be maintained.

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