Vacuum breaker, automatic flushing system for toilet and electronic bidet toilet

Patent metadata

Field	Value
Publication number	US-9637899-B2
Application number	US-201414192279-A
Country	US
Kind code	B2
Filing date	Feb 27, 2014
Priority date	Mar 1, 2013
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

The present utility model relates to a vacuum breaker, an automatic flushing system for toilet having the vacuum breaker, and an electric bidet toilet having the automatic flushing system for toilet. The vacuum breaker comprises a body and a cover which cooperate to define a cavity, the body being integrally formed with an inlet pipe section which defines a water inlet and an outlet pipe section which defines a water outlet, the cover being formed with an air port, wherein a tip portion of the inlet pipe section extends into the cavity in a direction towards the air port. The length of the tip portion of the inlet pipe section which extends within the cavity is greater than half of the height of the cavity. According to the present utility model, because the tip portion of the inlet pipe section extends almost throughout the cavity of the vacuum breaker, the level of the water inlet is elevated, so that the CL (critical level) line is raised.

First claim

The invention claimed is:

1. A vacuum breaker, comprising:
a body and a cover which cooperate to define a cavity, the body being integrally formed with an inlet pipe section which defines a water inlet and an outlet pipe section which defines a water outlet, the cover being formed with an air port, wherein a tip portion of the inlet pipe section extends into the cavity in a direction towards the air port; and
a gasket movable between a first position for closing the water inlet and a second position for closing the air port and a gasket fixation shaft for fixing the gasket, the gasket fixation shaft extending downward into the inlet pipe section and parallel with an axis of the inlet pipe section.

2. The vacuum breaker according to claim 1 , wherein the length of a portion of the inlet pipe section which extends within the cavity is greater than half of the height of the cavity.

3. The vacuum breaker according to claim 2 , wherein the tip portion of the inlet pipe section extends within the cavity up to the proximity of the air port.

4. The vacuum breaker according to claim 1 , wherein the cover is integrally formed with a waterproof cap located above the air port.

5. The vacuum breaker according to claim 1 , wherein an overflow hole in communication with the air port is further provided, wherein the cover is integrally formed with a waterproof sheet located above the overflow hole.

6. The vacuum breaker according to claim 1 , wherein an overflow hole in communication with the air port is further provided, wherein the cover is integrally formed with a waterproof cap located above the air port and a waterproof sheet located above the overflow hole.

7. An automatic flushing system for toilet, comprising a vacuum breaker according to claim 1 .

8. An electronic bidet toilet, having an automatic flushing system for toilet according to claim 7 .

Assignees

• Duravit Ag

Inventors

• Ping Zhixiong
• Ying Weimin

Classifications

• E03D5/022 Primary

  Operating automatically (E03D5/10 takes precedence) · CPC title

• E03C1/108 Primary

  having an aerating valve · CPC title

• E03D9/08 Primary

  Devices in the bowl producing upwardly-directed sprays; Modifications of the bowl for use with such devices (showers A47K3/28; bathing devices for special therapeutic or hygienic purposes A61H33/00, for specific parts of the body A61H35/00 ){; Bidets; Combinations of bowls with urinals or bidets; Hot-air or other devices mounted in or on the bowl, urinal or bidet for cleaning or disinfecting} · CPC title

• F16K24/00

  Devices, e.g. valves, for venting or aerating enclosures (equalising valves F16K17/00; arrangement or mounting in pipes or pipe systems F16L55/07; venting or aerating as an additional function of steam traps or like apparatus F16T; ventilation of rooms, vehicles, see the appropriate subclass, e.g. F24F) · CPC title

• E03D3/00

  Flushing devices operated by pressure of the water supply system {flushing valves not connected to the water-supply main, also if air is blown in the water seal for a quick flushing} · CPC title