| 摘要 |
Mixing valve of single lever type for liquids, e.g. hot and cold water, and of the type comprising a valve housing (3), arranged with two individual inlets (5) and a common outlet (4) for the liquids, a manually operable control member (2) arranged to influence a valve unit (1) arranged in the valve housing (3), preferably of ceramic type and having a fixed valve disc (10) and a in relation to same rotatably and linearly movably arranged valve disc (9), whereby both the temperature and flow volume of discharged flow can be controlled. According to the invention, a temporary increase of the discharged flow is only facilitated during the time period as the control member (2) is made subject to a manually applied force, whereafter a flow reduction is automatically performed to a predetermined level. This is accomplished by means of a movement transferring member (8), joined with the movably arranged valve disc (9), arranged with a springloaded abutment means (13) extending in the direction of movement for said valve disc (9) during a flow increasing movement, after a predetermined linear flow increasing movement arranged to take up contact with the internal surface of a surronding tubular housing (11) or a from a central member (6) extending contact member (16), during a continued flow increasing opening movement arranged to impose a force aiming to return the movably arranged valve disc (9) to a position in which the springloaded abutment means (13) no longer imposes any return force due to contact with the tubular housing (11). |
