The invention discloses a handheld bar code
machine convenient to use. The handheld bar code
machine convenient to use comprises a
machine body. The lower portion of the left side of the machine bodyis fixedly connected with a gas collecting hood, the left side of the machine body is fixedly connected with a box body, a purification groove is formed in an inner cavity of the box body, the bottomof an inner cavity of the purification groove is fixedly connected with a short
pipe, the other end of the short
pipe is fixedly connected with the gas collecting hood, the upper portion of the innercavity of the purification groove is slidingly connected with a dust screen through a sliding groove, and the portion, on the upper portion of the dust screen, of the inner cavity of the purificationgroove is slidingly connected with an
activated carbon filter plate through a sliding groove. Through mutual cooperation of the gas collecting hood, an ink storage box, the dust screen, the activatedcarbon filter plate, a draught fan, the short
pipe, a long pipe, an
electromagnetic valve and a filter drum, the problems that an existing handheld code
sprayer does not have a gas purification function,
physical health of operators is easily affected, after ink is used up, an ink box needs to be detached to be replaced, and the operation is very troublesome are solved.