Gas cylinder switching device and gas supply mechanism of carbonated water manufacturing equipment

The utility model relates to the field of household appliances, and discloses a gas cylinder switching device and a gas supply mechanism of carbonated water manufacturing equipment, the gas cylinder switching device comprises: a base arranged at the top of a gas cylinder; a shaft hole is formed in the base; the ejector rod is arranged in the shaft hole and abuts against the movable ejector pin ofthe gas cylinder; the ejector rod can drive the movable thimble to slide; when the movable thimble is at the initial position, the gas cylinder is closed; when the movable thimble moves towards the bottom of the gas cylinder to a preset position, the gas cylinder is opened; the pressing plate is arranged opposite to the ejector rod and is hinged to the base; the pressing plate rotates relative tothe ejector rod with the end, hinged to the base, of the pressing plate as the pivot point and further drives the ejector rod to slide in the axis direction of the shaft hole when rotating in the direction of the ejector rod.