Patent ID: 8181709

Claim:
A sprinkler head mounting structure, comprising: a joint unit comprising: a fitting part provided on an outer surface of an upper portion of the joint unit, an airtight ring is fitted over the fitting part; a cylindrical part provided under the fitting part; a threaded part provided under the cylindrical part; and a through hole formed in a central portion of the joint unit; a locking unit having on an upper portion thereof a plurality of locking pieces which are inserted around the fitting part, the locking pieces being provided on upper portions of inclined parts which are flared outwards, the locking unit being fitted over the, cylindrical part; an actuating unit fitted over a lower portion of the locking unit in such a way as to move up and down; a head having a threaded hole which corresponds to the threaded part; and a coupling unit having an insertion hole into which the fitting part is inserted, with a coupling groove formed at a predetermined position in the insertion hole so that the locking pieces are fitted into the coupling groove.