| 摘要 |
<p>1. Protective device for water pipes consisting primarily of a box (1) with a inlet (2) connection to a water supply pipe and with an outlet (3) connected to a water delivery pipe, in the box (1) an inlet chamber (4) which communicates with a delivery chamber (6) which leads to the outlet (3), a cut-off valve (13) located between the delivery chamber (6) and the outlet (3) which cut-off valve forms part of a membrane (15), a valve (31) for shutting off a channel (28) and a flow rate controller (36) for controlling the rate of flow in the connection circuit of the device, characterized by the fact that the inlet chamber (4) also communicates with a measuring chamber (9) and a pre-control chamber (11) and that it is provided with a valve (12) located between the inlet and delivery chambers (4-6), said membrane (15) being located in the measuring chamber (9) a push-down reset valve (16) located in the delivery chamber (6) for admitting pressure to the outlet (3) and the opening of the cut-off valve (13), a knob (18) for pushing the reset valve (16), a controllable valve (21) located between the delivery chamber (6) and the upper part of the measuring chamber (9) for adjusting the desired water consumption, a pre-control membrane (26) located in the pre-control chamber (11) for closing an opening (27) provided between the pre-control chamber and the measuring chamber (9), said channel (28) being provided between the discharge chamber (6) and the pre-control chamber (11), a channel (35) provided between the discharge chamber (6) and the pre-control chamber (11), an opening (29) provided between the measuring chamber (9) and the channel (28), said valve (31) being located between the pre-control chamber (11) and the opening (29) of the measuring chamber (9), means of control (32) for controlling the rate of flow between the measuring chamber (9) and the delivery chamber (6) and for controlling the closing speed of the cut-off valve (13), said flow rate controller (36) being located between the pre-control chamber (11) and the delivery chamber (6).</p> |
