Initiative type thermal drive snap lock

Abstract

The invention relates to an active thermal driving locking structure for disinfector and other appliance. The door switch is controlled by simple mechanical transmission device according to the principle that bimetallic strip is deformed in heating. When the temperature in cabinet achieves alarming temperature the door is locked by deformation of bimetallic strip and when the temperature is decreased to safe range the door is unlocked. The device is provided with simple structure and convenience installment. The temperature generated by the heater belonging to said lock itself is used as the action condition. As the thermal energy is transferred to mechanical energy the switch of door is controlled and it is safe and stable in working period. In the invention there is no need to open or close lock by manual work and the lock switch driven by thermal force is controlled by the signal of computer panel and the temperature in cabinet.

Description

technical field [0001] The present invention relates to an active heat-driven snap-on lock. Specifically, the present invention refers to a kind of heater that can be turned on or off when necessary to increase or decrease the temperature of the bimetal strip, so that the double-metal The action of the metal sheet causes the catch device of the lock to move to achieve the purpose of opening or locking. Background technique [0002] National Standard GB17988-2004 of the People's Republic of China "Safety and Sanitation Requirements for Tableware Disinfection Cabinets" stipulates in 6.1.22.101 that "ozone disinfection cabinets (rooms) and ultraviolet disinfection cabinets (rooms) should be equipped with door switches. When the maximum gap opened is greater than 2cm, the ozone generator and ultraviolet lamp stop working immediately, and the ozone generator and ultraviolet lamp can be restarted when the door is closed again. Ozone concentration ≥ 40mg / m 3 The door of the ozone ...

AI Technical Summary

Problems solved by technology

[0003] The two states given by this standard may cause harm to the human body if the locks of the prior art are used in specific implementation:

[0004] The first is to open the door and cut off the power so that the ozone generator and the ultraviolet lamp stop working. However, if the ozone concentration in the ozone disinfection cabinet (room) and ultraviolet disinfection cabinet (room) is still above the dangerous concentration when the door is opened, it will Injury to the human body occurs;

[0005] The second is to refuse to open the door without completing the work cycle, which actually specifies that only electronic locks can be used, because only electronic locks can communicate with the control devices of the ozone disinfection cabinet (room) and ultraviolet disinfection cabinet (room). linkage

[0010] The similar lock mechanism of the prior art is complex and the reliability of the action is low, in view of this, the present invention is proposed

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