| 摘要 |
<p>A pneumatic safety device designed to prevent water leakage caused by failure of any washing machine component. Said device comprises one or two pneumatically-actuated valves positioned downstream from the machine's water supply faucet. When said machine is being filled with water a small electric pump generates compressed air that opens the water inlet valve(s) against the reaction of springs. A float associated with an electric switch, normally closed when the machine is operating, rises when water leaks occur opening said switch, which shuts off the machine and pump power, and also closes the water intake valve(s).</p> |
