Patent ID: 11933416
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC F  H  B | IPC B  F  H

Claim 7:
8. The gate valve device of claim 1, wherein the gate valve device further comprises an air pump component,
the air pump component is configured to extract a part of dirt generated in a process of cleaning the swing gate valve by the cleaning component; and
wherein the air pump component comprises an air pump, a switch valve and a filter screen, the air pump is connected to a closed chamber through a pipe, the switch valve and the filter screen are arranged at one end of the pipe close to the closed chamber, and the closed chamber is a chamber formed between the first lifting component and the swing gate valve in the case that the opening on the side of the vacuum chamber close to the swing gate valve is in the closed state.