CA2549804A1 - Vacuum breaking device - Google Patents

Vacuum breaking device Download PDF

Info

Publication number
CA2549804A1
CA2549804A1 CA 2549804 CA2549804A CA2549804A1 CA 2549804 A1 CA2549804 A1 CA 2549804A1 CA 2549804 CA2549804 CA 2549804 CA 2549804 A CA2549804 A CA 2549804A CA 2549804 A1 CA2549804 A1 CA 2549804A1
Authority
CA
Canada
Prior art keywords
breaking device
vacuum breaking
air
sealing
cup
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA 2549804
Other languages
French (fr)
Other versions
CA2549804C (en
Inventor
Thomas Qiu
Jerry Gao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Globe Union Industrial Corp
Original Assignee
Globe Union Industrial Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Globe Union Industrial Corp filed Critical Globe Union Industrial Corp
Priority to CA 2549804 priority Critical patent/CA2549804C/en
Publication of CA2549804A1 publication Critical patent/CA2549804A1/en
Application granted granted Critical
Publication of CA2549804C publication Critical patent/CA2549804C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/102—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using an air gap device
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02—Plumbing installations for fresh water
    • E03C1/10—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves
    • E03C1/108—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves having an aerating valve

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

A vacuum breaking device includes a housing, a sealing base, a floating cup and a sealing ring. The housing has a liquid inlet, a liquid outlet and an air passageway. The sealing base is installed in the air passageway, and the floating cup is installed in an inner chamber of the sealing base. The sealing ring is fitted around an upper end of the floating cup for properly sealing the outer-air inlet in the upper portion of the sealing base and communicating with the inner chamber.
The floating cup has an annular flange for increasing the buoyancy of the floating cup, so that the outer-air inlet may be quickly sealed up. The annular flange has plural air paths, so the vacuum condition may be broken immediately when a vacuum pressure is produced in the device.

Claims (12)

1. A vacuum breaking device to be used in a liquid supplying system, said device comprising:

a housing provided with a liquid inlet, a liquid outlet and an air passageway, liquid made to flow from said liquid inlet to said liquid outlet in said housing;

a sealing base installed in said air passageway of said housing and having an inner chamber and an outer-air inlet communicating with said inner chamber, an annular sealing surface formed around said outer-air inlet;

a floating cup installed in said inner chamber of said sealing base and provided with an annular flange extending radially outward and spaced apart equidistantly from its outer surface, said annular flange having plural air paths for air to flow up and down therethrough; and, a sealing ring fitted around an upper portion of said floating cup and floating together with said floating cup to contact closely said annular sealing surface of said sealing base as to seal up said outer-air inlet, said sealing ring moving down together with said floating cup as to open said outer-air inlet when a vacuum condition happens in said device.
2. The vacuum breaking device as claimed in Claim 1, wherein said floating cup is further provided with a closed air chamber in its interior.
3. The vacuum breaking device as claimed in Claim 1, wherein said air paths of said annular flange of said floating cup are notches.
4. The vacuum breaking device as claimed in Claim 1, wherein said sealing base is composed of a bottom base, an upper member located on said bottom base, and a position base fixed on said air passageway of said housing for limiting the position of said upper member.
5. The vacuum breaking device as claimed in Claim 4, wherein said bottom base and said upper member define a chamber between.
6. The vacuum breaking device as claimed in Claim 4, said bottom base further has a hole communicating both with said liquid inlet and said liquid outlet
7. The vacuum breaking device as claimed in Claim 4, wherein said upper member has its upper end formed with said outer-air inlet and said annular sealing surface.
8. The vacuum breaking device as claimed in claim 2, wherein said floating cup consists of a cup body and a bottom cap, said cup body has an inner space opening downward, said bottom cap seals a bottom end of said cup body, and said closed air chamber is defined between said cup body and said bottom cap.
9. The vacuum breaking device as claimed in Claim 8, wherein said annular flange of said cup body is set at a preset height.
10. The vacuum breaking device as claimed in Claim 8, wherein plural plate ribs are provided to extend down from a preset portion of said annular flange, and an open area is formed between every two of said plate ribs for gas and liquid to flow through.
11. The vacuum breaking device as claimed in Claim 8, wherein said cup body is provided with an annular groove in an upper end portion for said sealing ring to fit tightly around, and plural guide posts extend up on an upper surface to properly extend in said outer-air inlet for guiding and limiting.
12. The vacuum breaking device as claimed in Claim 8, wherein plural support posts extend down from said bottom of said bottom cap for supporting said floating cup so that said inner chamber of said sealing base communicates with said liquid inlet and liquid outlet via said bottom cap.
CA 2549804 2006-06-07 2006-06-07 Vacuum breaking device Expired - Fee Related CA2549804C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2549804 CA2549804C (en) 2006-06-07 2006-06-07 Vacuum breaking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2549804 CA2549804C (en) 2006-06-07 2006-06-07 Vacuum breaking device

Publications (2)

Publication Number Publication Date
CA2549804A1 true CA2549804A1 (en) 2007-12-07
CA2549804C CA2549804C (en) 2009-12-15

Family

ID=38792302

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2549804 Expired - Fee Related CA2549804C (en) 2006-06-07 2006-06-07 Vacuum breaking device

Country Status (1)

Country Link
CA (1) CA2549804C (en)

Also Published As

Publication number Publication date
CA2549804C (en) 2009-12-15

Similar Documents

Publication Publication Date Title
RU2003113321A (en) LIQUID DISPENSER CLOSING DEVICE
CN101138110B (en) Gas release valve
KR100907167B1 (en) Fuel vapor vent valve with peel-off mechanism for ensuring reopening
RU2009107011A (en) CARTRIDGE FOR DISPERSED MATERIALS
CA2674985A1 (en) Air admittance valve
CA2559873C (en) Leakproof one-way valve for use with vacuum attachment
CN103097163B (en) Roll-over valve
JP2007132514A (en) Rollover vent valve
KR20060102510A (en) Low profile overfill limit device with reverse flow capability
CN101427059A (en) Fuel vent valve and improvement thereof
US8940423B2 (en) Vehicle battery pack container
EP2740684B1 (en) Retaining valve and liquid vessel
KR100735579B1 (en) Water-works of many function with air-bent
CA2549804A1 (en) Vacuum breaking device
CN104071138A (en) Plastic oil cup device for hydraulic braking device
CN210751987U (en) Waterproof ventilation valve that can adjust
CN106907483A (en) Pressure control equipment with the connection pedestal for attacking blind screw thread
US7537020B2 (en) Vacuum breaking device
CA2582631A1 (en) Tank vent pallet
JP5311475B2 (en) Liquid discharge pump
JP5101461B2 (en) Exhaust valve
CN2924259Y (en) Vacuum destructor
CN201196279Y (en) Novel gas bag inflating valve
CN211253600U (en) Double-channel double-plug-body independent plugging type bottle cap suitable for tire repair liquid bottle
JP2007016923A (en) Valve opening structure for float valve

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed