Patent ID: 9487938
Filing Date: 2016-11-08
CPC Classification: E03D,Y10T

Claim Text:
1. An automatic protect device when an inlet valve or a drain valve is failed or when a toilet is plugged up comprising an inlet, an outlet, an on-off component, a control circuit, a control component, a water level inductor of the water tank and a water level inductor of the toilet, the water level inductor of the water tank and the water level inductor of the toilet are respectively connected to the control circuit, the control circuit drives the control component, the control component is connected to the on-off component to control the on-off component to open or close, thus implementing the connection or the disconnection of the inlet and the outlet, a main controller comprises the inlet, the outlet, the on-off component, the control circuit and the control component, the main controller is assembled between a water resource pipe and the inlet end of the inlet valve, wherein the on-off component comprising a moving plate and a fixed plate, the fixed plate is disposed with a water hole, the moving plate is closely contacted to the fixed plate, the moving plate moves with respect to the fixed plate, so that the water hole is open or closed, thus implementing the open or close of the water flowing, the control component comprises a gear shaft, one end of the gear shaft is disposed with a cam laterally protruded, the moving plate is fixed to the cam; the cam, when rotating, drives the moving plate to move with respect to the fixed plate, the control component further comprises a pre-tighten shaft and a pre-tighten spring, the pre-tighten shaft is disposed between the moving plate and the cam, the pre-tighten spring is disposed between the pre-tighten shaft and the cam, thus making the moving plate closely contacted to the fixed plate, the control component further comprises a connecting sleeve, the connecting sleeve is sleeved between the gear shaft and the crank, the connecting sleeve is disposed with a straight hole, one end of the pre-tighten shaft is locked inside the straight hole, thus implementing the straight movement of the moving plate.