摘要:
The drain cock (1) comprises a body (2) with a pipe (3) that leads to a valve seat (4), a hand-actuated opening and closing member (6) screwed onto a formation (5b) on the body (2), barrier members (15, 16, 19; 15, 16, 27; 19) connected to the opening and closing member (6) and able to act on the valve seat (4), in such a way that when said member (6) is, relative to the body (2), in a closed position and in an open position, respectively, these barrier members shut off and disengage from, respectively, the seat (4), preventing and permitting, respectively, communication between an upstream portion of the installation and a region downstream of the valve scat (4). The drain cock (1) also comprises a moveable barrier (19; 16; 31) separated from the opening and closing member (6) and stressed by a spring (12) towards a shutoff position in which it is able, when this member (6) is in the closed position, to prevent the passage of liquid between the pipe (3) of the body (2) and a discharge passage (8b; 32). The arrangement is such that said barrier (19; 16; 31) is able to move from the shutoff position, against the action of the spring (12), when the pressure of the fluid upstream of the seat (4) exceeds a predetermined value, to a position in which it allows fluid to be discharged from the portion of the installation upstream of the seat (4) to the discharge passage (8b; 32).
摘要:
The water supply system comprises a control unit (ECU) to be associated with a washing machine (M), a supply hose (2) intended to be connected between a water source (3) and the machine (M), to convey a flow of water into the machine (M), a solenoid shut-off valve (5), normally closed, positioned between the hose (2) and the water source (3) and provided with an operating winding or solenoid (11), and a safety hose (14) which extends around the supply hose (2), between the solenoid valve (5) and the machine (M), and in which insulated electrical conductors (13) extend, for connecting the winding or solenoid (11) of the valve (5) to the control circuit means (ECU). The winding or solenoid (11) of the solenoid shut-off valve (5) is made so as to be operable by an extra-low voltage, and the control unit (ECU; 17) is predisposed to cause the application of an extra-low voltage to this winding or solenoid (11).
摘要:
The heating device (10) comprises a hollow body (11) in which a (first) duct (15) for the passage of a flow of liquid (4) to be sent towards the washing chamber (2) is defined, and with which an electrical resistance heater (17) for heating the flow of liquid passing through the duct (15) is associated. A further or second duct (16), separated from the first duct by a thermally-conductive wall (14), is defined in the body (11) for the passage of an air-flow which is also to be supplied to the washing chamber (2) and which can be heated by the heater (17) during its passage through the second duct (16). The electrical resistance heater (17) is disposed in the second duct (16) and is connected in an arrangement for exchanging heat with the thermally-conductive wall (14).
摘要:
An apparatus (10) for controlling the closing of a door (D) of a household appliance (W), comprising an engagement element (11), which is fitted on the casing (C) of the household appliance (W) and is arranged for being held in a releasable manner by a retaining element (16) fitted on the door (D). The engagement element (11) comprises: a support body (12); and a striker (14), which is adapted to be coupled in a releasable manner to the retaining element (16) and is movable between a retracted position and an extracted position. When the striker (14) is coupled to the retaining element (16) and assumes the retracted position and the extracted position, respectively, the door (D) is suited to be in a complete closing condition and in a pre-opening condition, respectively. The apparatus (10) comprises, furthermore: a stop mechanism (18) tending to move from a release condition, in which it (18) is adapted to liberate said striker (14), to a locking condition, in which it (18) is adapted to hold said striker (14), when it is in said retracted position; a driving means (20), which is arranged for controlling the movement of the stop mechanism (18) from the locking condition to the release condition. The stop mechanism (18) comprises a safety element (18a), which can be manually controlled by a user and can be moved to an inhibition arrangement, in which it forcedly constrains the stop mechanism (18) in the release condition.
摘要:
The system comprises: a plate (5) in which there is formed an aperture (9) into which the first body (4) can be inserted in a direction of connection (F) and in which this body can be placed in a predetermined relative position, in which an axial portion (4c) of this body is transversely confined and locked in the aperture (9); a channel (8) formed in the periphery of a first body (4) in a direction which forms an angle with the direction of connection (F); a retaining formation (14) created in the second body (3) along a direction forming an angle with the direction of connection (F); retention and guide means (10, 11) associated with the plate (5), for defining a direction of sliding (G) substantially parallel to the plate (5), and at least one interlock member (15) which can be inserted slidably into the retention and guide means (10, 11) of the plate (5) and which has a first and a second longitudinal profile (15g, 15f) which can engage slidably, respectively, in the channel (8) of the first body (4) and with the retaining formation (14) of the second body (3) when the first body (4) is placed in the specified relative position in the second body (3) and in the aperture (9) of the plate (5), in such a way that the first and second bodies (4, 3) are fixed together axially and transversely and are fixed to the plate (5).
摘要:
An apparatus (10) for controlling the closing of a door (D) of a household appliance (W), comprising an engagement element (11), which is fitted on the casing (C) of the household appliance (W) and is arranged for being held in a releasable manner by a retaining element (16) fitted on the door (D). The engagement element (11) comprises: a support body (12); and a striker (14), which is adapted to be coupled in a releasable manner to the retaining element (16) and is movable between a retracted position and an extracted position. When the striker (14) is coupled to the retaining element (16) and assumes the retracted position and the extracted position, respectively, the door (D) is suited to be in a complete closing condition and in a pre-opening condition, respectively. The apparatus (10) comprises, furthermore: a stop mechanism (18) tending to move from a release condition, in which it (18) is adapted to liberate said striker (14), to a locking condition, in which it (18) is adapted to hold said striker (14), when it is in said retracted position; a driving means (20), which is arranged for controlling the movement of the stop mechanism (18) from the locking condition to the release condition. The stop mechanism (18) comprises a safety element (18a), which can be manually controlled by a user and can be moved to an inhibition arrangement, in which it forcedly constrains the stop mechanism (18) in the release condition.