| 摘要 |
<p>PURPOSE: A nonfreezing valve structure is provided to achieve high freeze-and-burst protection and leakage prevention effects by accurately discharging the residual water and preventing the water leaking through a water drain hole. CONSTITUTION: A nonfreezing valve structure for freeze and burst protection is as follows. A water supply pipe(200) is connected to a nonfreezing valve(100) and to a housing(110) with a water supply hole and a water drain hole(112). A support fitted with a rubber watertight member is fixed inside the housing. An intake member with vertically bored intake holes is formed on the bottom of an opening/closing rod(120) which passes through the support to the bottom of the housing. An opening/closing member is provided on the underside of the intake member to close the water supply hole.</p> |
