LOCK AND RELEASE MECHANISM FOR FIRE EXTINGUISHER Russian patent published in 2008 - IPC A62C13/00 

FIELD: mechanics.

SUBSTANCE: lock and release mechanism for extinguisher includes head attached to a container. The head is provided with inlet and outlet channels for fire extinguishing agent supply. Bushing with flange from one side and circular bead from the other side is threaded into the housing. Rod is spring-loaded with regard to head and installed into bushing hole to enable interaction of locking element with circular bead acting as valve seat. Pivoted steering lever and handle for transportation with fastening base are located inside head at an angle to head axis. To fix handle under bushing flange, handle base is provided with tie-down slot covering bushing under flange and pressing handle base to head. Pivoted lever with threaded hole is attached to rod via pusher being in the shape of screw with retainer nut. Head material is profiled iron of aluminium alloy. It is processed by pressing and drawing method. Bushing material is brass.

EFFECT: improvement of operational reliability and reduction of mechanism repair cost and price.

4 cl, 4 dwg