SODA WATER MAKER WITH SELF-SEALING FUNCTION FOR SODA WATER BOTTLE AND HAVING PROTECTION DEVICE FOR CO₂ GAS-LEAK

摘要

Provided is a soda water maker with a self-sealing function for a soda water bottle and having a protection device for CO₂ gas-leak, comprising a carbon dioxide cylinder, a soda water bottle, a gas outlet controller provided on the carbon dioxide cylinder, and a gas inlet device and a gas outlet device provided on the soda water bottle, wherein the gas inlet device comprises a bottle joint, a valve body, a gas nozzle rod, a threaded sheath, a sealing pressure plate and a sealing ring; the valve body is snapped together with the bottle joint and fixedly connected thereto by a bo a surface of a cavity of the sealing ring in the shape of an inverted truncated cone is fitted with the opening of the soda water bottle; a stopping part of a shaft of the gas nozzle rod is fitted with the sealing pressure plate; and the sealing pressure plate is inserted into the cavity on the outer surface of the sealing ring in the shape of the inverted truncated cone and is abutted with a bottom plate of the cavity. With such a structure, in a natural state, a release gap between the cavity of which the outer surface is in the shape of the inverted truncated cone and the opening of the soda water bottle is used to release pressure; and when in operation, the cavity of the sealing ring of which the outer surface is in the shape of the inverted truncated cone is firmly fitted with the opening of the soda water bottle to achieve gas tightness. The soda water maker is safe, reliable and convenient to use.