Vacuum box door lock device and vacuum box

Abstract

The invention discloses a vacuum box door lock device and a vacuum box, the door lock device comprises a locking assembly and a door handle assembly, the locking assembly and the door handle assembly are respectively arranged on a box body and a door plate of the vacuum box, and the locking assembly comprises a locking fixing block and a locking piece; the locking fixing block is fixedly installed on the box body, and the locking piece is installed on the locking fixing block. The door handle assembly comprises a fixed contact block and a rotating piece. A pressing surface is arranged on the fixed contact block, and linear pressing locking is formed between the pressing surface and the locking piece, so that the sealing rubber strip between the door plate and the box body is slowly sealed. When the fixed contact block and the locking piece are in contact and locked, the pressing surface on the fixed contact block and the locking piece are locked; after vacuumizing, the contact between the fixed contact block and the locking piece is loosened, the fixed contact block rotates downwards and falls down under the gravity of the fixed contact block, and the locking piece and the fixed contact block are recovered to be in an open state; the door plate is kept in a sealed state through vacuum in the vacuum box, and an automatic locking sealing warning is given.

Description

technical field [0001] The invention relates to the field of vacuum box preparation, in particular to a vacuum box door lock device and a vacuum box. Background technique [0002] The vacuum box is a common drying equipment, which is often used in laboratories or production workshops. It is mainly used to dry related objects, chemicals, etc. placed in the vacuum box by means of vacuum pumping; this drying method, the drying speed Fast, good drying effect, and can avoid dust pollution in the air. [0003] In order to effectively seal the vacuum box, paste the right sealing strip on the contact surface between its box body (or cavity) and the door panel. The sealing strip can be pasted on the box body or on the door panel. . After the door panel of the vacuum box is manually closed, due to the stretchability of the sealing rubber strip, the corresponding initial reference plane of the door panel is generally lower than the original value of the sealing rubber strip, that is,...

AI Technical Summary

Problems solved by technology

[0004] However, the door handle of the existing vacuum box cannot adjust the initial reference plane corresponding to the door panel. After working for a long time, due to wear and other reasons, the reference plane does not reach the initial position after the door panel is closed, resulting in poor vacuum adsorption effect and leakage. Vacuum; or if the thickness of the sealing strip changes, the initial reference plane corresponding to the original door panel will change. At this time, the door panel will not close tightly or close properly, which will also lead to vacuum leakage.

Images