摘要 |
PURPOSE: A retractable spray beam is provided to have a separating pipe which is comprised of internal and external pipe with a spraying nozzle and prevent the internal pipe from clogged by a passing path on the external pipe by sliding the internal pipe. CONSTITUTION: A retractable spray beam comprises an external pipe(2b), an internal pipe(2a) which is inserted to the external pipe in a sliding way, an annex(2) which fix the internal pipe to a locking device(4) which is fixed to the slide, a holder(5) which is equipped in the middle of the external pipe and a spraying nozzle(3) which is equipped on the holder and the end of the internal pipe. The retractable spray beam changes the height of the annex by sliding the internal pipe, forms a cylindrical typed inserting pipe(9) with notches or protruding part(10) on the holder and insert the cylindrical typed inserting pipe into a passing hole(11) which is in the external pipe.
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