Sealed door latch mechanism used for pressure vessel

Abstract

The invention relates to a sealed latch mechanism used for a pressure vessel in a sterilizer. To solve the insufficiency of a current mechanical door latch mechanism used for the pressure vessel in the sterilizer that the cooperate adjustment of the cavity sealing is very difficult, and that sealing doors can be easily opened artificially when the pressure vessel in the sterilizer is working, the invention provides a sealed door latch mechanism used for a pressure vessel which can cooperate with the cavity cover to realize the sealing adjustment, and can guarantee that the sealing doors can not be opened randomly while the sterilizer is working. The sealed door latch mechanism used for pressure vessel comprises a cavity, a cavity cover assembly, a mechanical door latch mechanism, a door latch locking judging mechanism, and an electric door latch mechanism, wherein the cavity cover assembly comprises a cavity cover adjustable screw, several cavity cover fixation adjustable screw, several compression spring, a cavity cover and a sealing element. The door latch locking judging mechanism comprises a mechanical door latch mechanism locking judging signaling switch, a locking judging signaling switch connector, a coupling head oriented fixed screw and a coupling head oriented fixed nut.

Description

technical field [0001] The invention relates to a sealed door lock mechanism for a pressure vessel, in particular to a sealed door lock mechanism for a pressure vessel in a sterilizer. Background technique [0002] Existing sealed door lock mechanisms for pressure vessels in sterilizers are divided into mechanical door lock mechanisms and electric control door lock mechanisms. Among them, although the mechanical door lock mechanism can realize the automatic locking state when the pressure vessel in the sterilizer is under high pressure, it has the possibility of sealing when the pressure vessel in the sterilizer is under vacuum and slightly high pressure. The disadvantage that the door can be opened artificially, when the pressure vessel in the sterilizer is in a state of vacuum and slightly high pressure, it is very dangerous to artificially open the airtight door, because the airtight door on the pressure vessel is opened at this time , there will be high-pressure steam a...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the existing mechanical door lock mechanism used for the pressure vessel in the sterilizer. It is difficult to adjust the seal between the cavity cover and the cavity in use; when the pressure vessel in the sterilizer is in vacuum and The airtight door can be artificially opened in a slightly high-pressure state, and the operator is easily scalded; and the existing electric control door lock mechanism for the pressure vessel in the sterilizer exists in use In the event of a power failure, the airtight door on the pressure vessel cannot be opened, and it is easy to provide a sealing fit between the chamber cover and the chamber body; when the sterilizer is working, the operating procedure must be terminated first. The airtight door can only be opened, otherwise the airtight door cannot be opened; when the sterilizer encounters a power failure during work, the airtight door can be opened manually for the airtight door lock mechanism of the pressure vessel

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