| 摘要 |
A coupling water supply port is provided to improve operability and sealability by smoothly lifting a disc, thereby stably performing an opening/closing operation of a valve. A coupling water supply port(100) comprises a body(10), a disc(20), a valve body(30), and a coupling pipe(40). The body is connected to a fire-extinguishing water supply pipe of the building inside. The body is formed in a cylindrical shape having an inlet(11) and an outlet(12) formed in both sides thereof. The body has a valve chamber(14) formed therein such that a support(13) is installed on an inner side of the valve chamber. The disc is coupled to the inside of the valve chamber of the body. The disc has a disc shaft(21) vertically formed on a central portion of one side thereof, and a packing(22) joined with the other side thereof. The disc is elastically installed by a spring(23) and lifted or lowered to open or close the valve. The valve body is connected to the outlet of the body, and has a flange(31) formed on the outer periphery thereof, a valve disc side(32) formed on the bottom thereof, and a plurality of guide pins(33) integrally formed on the circumference thereof. The coupling pipe is joined with an outer side of the valve body through a snap ring(41) and connected to a fire-fighting hose.
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