A freeze valve

Abstract

The utility model provides a kind of freeze-proof valve, belong to valve technical field.It solves the problem that water cannot be smoothly discharged when existing freeze-proof valve drains in closed pipeline.The freeze-proof valve, including the valve body of tubular, the lower side wall of valve body is fixed with drain pipe, temperature sensing valve core is arranged in drain pipe, the upper side wall of valve body is fixed with vent pipe, the upper end of vent pipe is inserted and fixed with vent cap, vent cap has air hole, the inner hole wall of vent pipe has the convex ring below vent cap, vent valve core is arranged in vent pipe, and vent valve core can slide up and down and the section is inverted T type, vent valve core includes disc part between convex ring and vent cap and straight rod part inserted in vent cap, disc part abuts on convex ring and vent valve core has vent passage between inner hole of valve body and air hole, and disc part can form seal on the lower end of vent cap to cut off vent passage.The freeze-proof valve can make water in closed pipeline be smoothly discharged.

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