▎ 摘　　要

NOVELTY - The grape crusher protected by liquid nitrogen volatile gas comprises a crushing chamber, a rolling piece, a bin cover, a crushing sieve, a bracket, and a negative pressure piece. The crushing chamber is provided with the main body of the crusher. The top unit is provided with a chamber cover capable of being opened and the upper unit of the chamber cover set with a rolling component. The lower unit of rolling component extends to the interior of the crushing chamber. The crushing sieving is arranged in the crushing cavity. The outer side of the crushed cabin is connected with a negative pressure piece. The bracket is used for supporting the crushing cabin. USE - Graphene crusher for protecting liquid nitrogen volatile gas such as wine, for use in gardening technical instrument field. Can also be used for protecting nitrogen. ADVANTAGE - The crusher has technical effect of preventing polyphenol oxidation, preserving grape seed integrity and saving nitrogen. It is suitable for laboratory scale wine brewing, and good for quality control. DESCRIPTION OF DRAWING(S) - The drawing shows a perspective view of the crushing chamber. (Drawing includes non-English language text). Cabin (1.1) Viewing window (1.2) Plate support (1.3) Material pipe (1.4) Discharging pipe (1.5)