| 摘要 |
PURPOSE: A self-closing valve apparatus only for a water supply is provided to control water discharging capacity by raising only an open-and-shut member as well as by discharging water of a control space after pushing a push member. CONSTITUTION: A self-closing valve apparatus only for a water supply comprises an inner protrusion; a cover member(40); a shaft member(30); a push member(20); an open-and-shut member(50) and a control space. The inner protrusion is formed to a housing member(10) to form a vent hole having a shorter diameter than a diameter(R1) of a through hole(17). The cover member is screwed to the housing member. The cover member has a guide hole(42) having a diameter on a central portion and a second passage on one side. The shaft member is moved up and down in the guide hole. The shaft member has a third tubular portion having a same diameter with the guide hole; a fourth tubular portion having a shorter diameter than the diameter of the third tubular portion and a hanging tubular portion. The push member is operated to be connected to the shaft member with a bolt(24). The open-and-shut member is moved up and down by being guided to the through hole to discharge water in specific time when the push member is pushed. The open-and-shut member has a storing concave groove on an upper surface, a first passage on one side and an outflow passage(54) on a lower portion. The control space is formed between the housing member, the open-and-shut member and the cover member. Volume of the control space is changed to discharge water in specific time by a movement of the open-and-shut member. Therefore, waste of water is minimized by stopping discharge of water when water is filled.
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