Vacuum-pumping control system for freeze-drying bin

The invention discloses a vacuum-pumping control system for a freeze-drying bin, and the system comprises the freeze-drying bin which provides a freeze-drying environment for materials; the first connecting pipe is arranged on the freeze-drying bin; the second connecting pipe is connected with the first connecting pipe; the air pump is connected with the second connecting pipe; the mounting pipe is arranged on the first connecting pipe; the filter plate is arranged on the mounting pipe; an air outlet communicated with the first connecting pipe is formed in the freeze-drying bin, and a through groove is formed in the mounting pipe; when the air pump exhausts air, the through groove is closed, the air outlet is opened, and airflow passes through one side of the filter plate; when the air pump blows air, the through groove is opened, the air outlet is closed, and airflow passes through the other side of the filter plate; the filter plate can be conveniently cleaned. 本发明公开了一种冻干仓抽真空控制系统，包括：冻干仓，为物料提供冻干所需环境；第一连接管，设于