Major water leak prevention apparatus for water inlet valve

Appareil de protection contre les fuites d'eau importantes pour robinet d'arrivee d'eau

Abstract

A major water leak prevention apparatus for a water inlet valve, wherein: a float (4) is disposed on an adjusting rod (3) and within a small water tank (5), the small water tank (5) is disposed on a water inlet valve body (1), and the small water tank (5) is provided with a siphon tube (6); a water tray (7) is disposed on the water inlet valve body (1) and is positioned above the small water tank (5), said tray (7) is provided with a water overflow opening (71) and is aligned with the small water tank (5), and the bottom of the tray (7) is provided with an opening (72); a counterweight float (8) is disposed at the bottom end of the water inlet valve body (1), the counterweight float (8) comprises a water cavity (81) and a buoyancy cavity (82), each being independent of the other and integrally formed; the water cavity (81) and the buoyancy cavity (82) are disposed at the bottom end of the water inlet valve body (1), and, the opening (72) at the bottom of the water tray (7) is connected to the counterweight float (8) by means of a conduit (84); when the gravitational force on the water cavity (81) is greater than the buoyancy of same, the water cavity (81) plugs an outlet at the bottom end of the conduit (84); and, when the gravitational force on the water cavity (81) is less than the buoyancy of same, the water cavity (81) opens the outlet at the bottom end of the conduit (84). The major water leak prevention apparatus causes the water inlet valve immediately to stop letting water in when a major water leak occurs in the water tank, thus saving water resources.

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