| 摘要 |
<p>PURPOSE:To reduce operations in an installation side and make handling convenient in custody and sale by uniting an unit tubular body, sprinkler hard and branch joint. CONSTITUTION:In custody and transportation, a sprinkler head 16 and branch joint 4 do not need a special package since they are protected with a unit tubular body 3 and protective cover 21 mounted on an opening 2 thereof. Further, since the branch joint 4 and sprinkler head 16 connected thereto are coupled with each other into a unit, they are conveniently put on sale. In a piping operation, screws 7, 8 of pipe joint sections 5, 6 extending out of the unit tubular body 3 are connected respectively to water supply pipes 31, 32 and the sprinkler head 16 can be installed in a predetermined position by removing the protective cover 21, so that operations in site are reduced. When a sealing cover 24 is mounted on the opening 2 of the unit tubular body 3, a gap between the base 19 of the sprinkler head 16 and a cut-out hole 23 of a ceiling 22 can be closed to facilitate a sealing operation of the gap.</p> |
