Soft ice cream machine with independent precooling and fresh -keeping function

The utility model relates to a soft ice cream machine with independent precooling and fresh -keeping function, former feed basin outer wall upper case have densely covered copper pipe, and the both ends of copper pipe are refrigerating medium respectively and import and export, freezing cylinder includes that both ends have the into freezer container of discharge gate, and freezer container has annular outer jacket, and outer jacket's both ends are equipped with refrigerating medium respectively and import and export, install puffing pipe between the discharge gate of former feed basin and freezing cylinder's the freezer container feed inlet, also include two compressors, the suction end of compressor is connected with the refrigerating medium export of freezing cylinder outer jacket's refrigerating medium export, the outer rosette copper pipe of former feed basin respectively mutually, the exhaust end of compressor has connected gradually the condenser, the filter, and solenoid valve and expansion valve, the expansion valve export is connected with the refrigerating medium import of freezing cylinder outer jacket's refrigerating medium import, the outer rosette copper pipe of former feed basin respectively mutually. Have compact structure, the refrigeration is fast, and refrigeration efficiency is high, characteristics that extrusion efficiency is high, unit area is little, the cost reasonable and maintain convenient. And connect the refrigerating plant of former feed basin and can open alone and stop, not only can be before adding thick liquids the former feed basin of precooling, but also during the expiring thick liquids can not leave former feed basin in the same day in the former feed basin, be in fresh -keeping state, needn't take out night.