| 摘要 |
The invention relates to an electronically controlled cut-off valve system with particular application as an anti-flooding device. The cut-off valve system contains an encased electronic circuit (3) triggered by a signal from an external unit detecting an emergency condition, a mechanical membrane cut-off valve with an elastic driving element (15) compressed, in the open state of the valve, by means of an external element (5) setting the state of the valve, in the form of a double-arm lever (14), and a member (4) holding/releasing the lever (14), controlled by the said electronic circuit (3), being a magnetic-electromagnetic member and located outside the body (2) of the membrane cut-off valve. The body (2) is also equipped with a flow duct (10) with an inlet (11) and an outlet (12). The body (2) of the membrane valve is part of a housing (1), the latter being of compact construction and containing, simultaneously, the electronic circuit (3), the holding/releasing member (4) of the lever (14), and a separate and independent d.c. supply unit (6), sealed in a chamber (8) and separated in the housing (1), and containing an exchangeable d.c. supplying member in the form of a single 1.5V LR6 Mignon type battery. |
