Abstract: An inlet valve explosion-proof structure is provided, and its flow speed of inflow water exceeds in setting values. The force receiving arm of the guide disc body is pressed to closely attach the guide cone portion at the lower side to the edge of the inner ring base portion of the tube combination base body, so that the pilot hole portion of the tube combination base body is sheltered by the guide cone portion to prevent water pipes from exploding due to excessive water pressure or ageing water pipes. Alternatively, it can prevent water faucets from causing water leakage to achieve efficacies of better stable structure and ensuring high usage safety.

Abstract: A water-saving device structure is provided. When the pressure of an entry water is high, a water-barrier sheet body is pressed to cause a downwardly-moved elastic stopping portion to block a water-inflow opening of a water-outflow seat body, so that the water flow is conducted to a water-outflow opening through a water-conducting opening of the water-barrier sheet body. When the pressure of the entry water is low, the entry water is conducted to the water-outflow opening via one path traveling from the water-conducting opening of the water-bather sheet body to the water-outflow opening of the water-outflow seat body and the other path traveling along the clearances of stopping wall portions of the water-outflow seat body, a water-storage circular slot portion, the water-inflow openings of the water-outflow seat body and the water-outflow opening of the water-outflow seat body. Therefore, the outflow water with steady flow rate can be obtained.