US20180251968A1 - Vacuum Breaker - Google Patents
Vacuum Breaker Download PDFInfo
- Publication number
- US20180251968A1 US20180251968A1 US15/450,065 US201715450065A US2018251968A1 US 20180251968 A1 US20180251968 A1 US 20180251968A1 US 201715450065 A US201715450065 A US 201715450065A US 2018251968 A1 US2018251968 A1 US 2018251968A1
- Authority
- US
- United States
- Prior art keywords
- main body
- bushing
- water stop
- vacuum breaker
- stop gasket
- 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.)
- Abandoned
Links
Images
Classifications
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/10—Devices preventing bursting of pipes by freezing
-
- 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
- E03C1/104—Devices for preventing contamination of drinking-water pipes, e.g. means for aerating self-closing flushing valves using a single check valve
Definitions
- the present invention relates to a breaker and, more particularly, to a vacuum breaker.
- a tube coupling is mounted between a water inlet pipe and a water outlet pipe.
- a vacuum breaker is mounted on the tube coupling and allows entrance of ambient air into the tube coupling.
- the vacuum breaker is used to break a vacuum state in the tube coupling between the water inlet pipe and the water outlet pipe, thereby preventing the water from staying in the tube coupling and the water outlet pipe, and thereby preventing the tube coupling and the water outlet pipe from being broken when the water freezes.
- the primary objective of the present invention is to provide a vacuum breaker having a leakproof function.
- a vacuum breaker comprising a main body, a bushing mounted in the main body, an elastic member mounted in the main body, a braking member mounted in the main body, a water stop gasket mounted in the main body, a water inlet disk mounted in the main body, and a washer mounted in the main body.
- the main body has a periphery provided with a plurality of air vent holes located under the water stop gasket and connected to an interior of the main body.
- the braking member presses the water stop gasket.
- the elastic member pushes the braking member toward the water stop gasket.
- the water stop gasket has a center provided with a first water inlet hole.
- the water inlet disk has a periphery provided with a plurality of second water inlet holes misalign with the first water inlet hole of the water stop gasket.
- the interior of the main body is provided with a positioning groove.
- the bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body. The bushing is extruded outward by an oil pressure to form the positioning protrusion.
- the bushing made of metallic material is not deformed during the injection molding process due to the effect of thermal expansion and contraction, so that when the bushing is extruded outward by the oil pressure to form the positioning protrusion, the positioning protrusion is secured in the positioning groove of the main body, and the bushing is combined with the main body integrally and will not be detached from the main body, thereby preventing the vacuum breaker from incurring water leakage.
- FIG. 1 is a partially broken perspective cross-sectional view of a vacuum breaker in accordance with the preferred embodiment of the present invention.
- FIG. 2 is a partially exploded perspective view of the vacuum breaker in accordance with the preferred embodiment of the present invention.
- FIG. 3 is a cross-sectional assembly view of the vacuum breaker in accordance with the preferred embodiment of the present invention.
- FIG. 4 is a schematic operational view of the vacuum breaker as shown in FIG. 3 , wherein water enters the vacuum breaker.
- FIG. 5 is a schematic operational view of the vacuum breaker as shown in FIG. 3 , wherein the water flow stops.
- a vacuum breaker in accordance with the preferred embodiment of the present invention comprises a main body 10 , a bushing 70 mounted in the main body 10 , an elastic member 20 mounted in the main body 10 , a braking member 30 mounted in the main body 10 , a water stop gasket 40 mounted in the main body 10 , a water inlet disk 50 mounted in the main body 10 , and a washer 60 mounted in the main body 10 .
- the main body 10 has a periphery provided with a plurality of air vent holes 17 located under the water stop gasket 40 and connected to an interior of the main body 10 .
- the braking member 30 presses the water stop gasket 40 .
- the elastic member 20 pushes the braking member 30 toward the water stop gasket 40 so that the braking member 30 presses the water stop gasket 40 .
- the water stop gasket 40 has a center provided with a first water inlet hole 41 .
- the water inlet disk 50 has a periphery provided with a plurality of second water inlet holes 51 misalign with the first water inlet hole 41 of the water stop gasket 40 .
- the bushing 70 has a center provided with a water outlet hole 72 .
- the air vent holes 17 of the main body 10 are equally distant from each other.
- the interior of the main body 10 is provided with a positioning groove 18 .
- the bushing 70 is made of metallic material and has an exterior provided with a positioning protrusion 74 secured in and combined integrally with the positioning groove 18 of the main body 10 . In fabrication, the bushing 70 is extruded outward by an oil pressure to form the positioning protrusion 74 .
- the bushing 70 is secured in the main body 10 .
- the water stop gasket 40 is located above the braking member 30 .
- the elastic member 20 is biased between the bushing 70 and the braking member 30 to push the braking member 30 toward the water stop gasket 40 .
- the water inlet disk 50 is located above the water stop gasket 40 .
- the washer 60 is located above the water inlet disk 50 .
- the water stop gasket 40 is made of resilient material.
- the elastic member 20 is a compression spring.
- the braking member 30 has a bottom provided with a plurality of retaining portions 31 .
- the bushing 70 has a lower end provided with an inner flange 71 .
- the elastic member 20 is mounted in the bushing 70 and is biased between the braking member 30 and the bushing 70 .
- the elastic member 20 has an upper end retained in the retaining portions 31 of the braking member 30 and a lower end resting on the inner flange 71 of the bushing 70 .
- the main body 10 has a first end provided with an internal thread 11 and a second end provided with an external thread 12 .
- the washer 60 is located between the internal thread 11 of the main body 10 and the water inlet disk 50 .
- the positioning groove 18 of the main body 10 corresponds to the external thread 12 .
- a first pipe 1 (see FIG. 4 ) is screwed into the internal thread 11 of the main body 10 and presses the washer 60
- a second pipe 2 (see FIG. 4 ) is screwed onto the external thread 12 of the main body 10 .
- the water stop gasket 40 is located between the braking member 30 and the water inlet disk 50 and has a periphery provided with an arcuate lip 42 curved upward.
- the water inlet disk 50 is located between the washer 60 and the water stop gasket 40 .
- the interior of the main body 10 is provided with a first stepped edge 13 , a second stepped edge 14 , a third stepped edge 15 and a fourth stepped edge 16 .
- the bushing 70 is mounted in the first stepped edge 13 of the main body 10 .
- the lower end of the bushing 70 is provided with an outer flange 73 resting on the first stepped edge 13 of the main body 10 .
- the water stop gasket 40 is mounted in the second stepped edge 14 of the main body 10 .
- the water inlet disk 50 is mounted in the third stepped edge 15 of the main body 10 .
- the washer 60 is mounted in the fourth stepped edge 16 of the main body 10 .
- the air vent holes 17 of the main body 10 correspond to the second stepped edge 14 of the main body 10 .
- the bushing 70 is made of leadless copper material.
- the bushing 70 made of metallic material is not deformed during the injection molding process due to the effect of thermal expansion and contraction, so that when the bushing 70 is extruded outward by the oil pressure to form the positioning protrusion 74 , the positioning protrusion 74 is secured in the positioning groove 18 of the main body 10 , and the bushing 70 is combined with the main body 10 integrally and will not be detached from the main body 10 , thereby preventing the vacuum breaker from incurring water leakage.
Abstract
A vacuum breaker includes a main body, a bushing, an elastic member, a braking member, a water stop gasket, a water inlet disk and a washer. The interior of the main body is provided with a positioning groove. The bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body. The bushing is extruded outward by an oil pressure to form the positioning protrusion. Thus, the bushing is combined with the main body integrally and will not be detached from the main body.
Description
- The present invention relates to a breaker and, more particularly, to a vacuum breaker.
- A tube coupling is mounted between a water inlet pipe and a water outlet pipe. A vacuum breaker is mounted on the tube coupling and allows entrance of ambient air into the tube coupling. Thus, the vacuum breaker is used to break a vacuum state in the tube coupling between the water inlet pipe and the water outlet pipe, thereby preventing the water from staying in the tube coupling and the water outlet pipe, and thereby preventing the tube coupling and the water outlet pipe from being broken when the water freezes.
- The closest prior art reference of which the applicant is aware was disclosed in U.S. Pat. No. 8,245,721, entitled “TUBE COUPLING DEVICE HAVING CHECK VALVE”, wherein the body and the bushing are combined together by injection molding. The body is made of metallic material, and the bushing is made of plastic material. However, the bushing made of plastic material is easily deformed during the injection molding process due to the effect of thermal expansion and contraction, so that the bushing made of plastic material is easily stripped from the body made of metallic material, thereby producing water leakage.
- The primary objective of the present invention is to provide a vacuum breaker having a leakproof function.
- In accordance with the present invention, there is provided a vacuum breaker comprising a main body, a bushing mounted in the main body, an elastic member mounted in the main body, a braking member mounted in the main body, a water stop gasket mounted in the main body, a water inlet disk mounted in the main body, and a washer mounted in the main body. The main body has a periphery provided with a plurality of air vent holes located under the water stop gasket and connected to an interior of the main body. The braking member presses the water stop gasket. The elastic member pushes the braking member toward the water stop gasket. The water stop gasket has a center provided with a first water inlet hole. The water inlet disk has a periphery provided with a plurality of second water inlet holes misalign with the first water inlet hole of the water stop gasket. The interior of the main body is provided with a positioning groove. The bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body. The bushing is extruded outward by an oil pressure to form the positioning protrusion.
- According to the primary advantage of the present invention, the bushing made of metallic material is not deformed during the injection molding process due to the effect of thermal expansion and contraction, so that when the bushing is extruded outward by the oil pressure to form the positioning protrusion, the positioning protrusion is secured in the positioning groove of the main body, and the bushing is combined with the main body integrally and will not be detached from the main body, thereby preventing the vacuum breaker from incurring water leakage.
- Further benefits and advantages of the present invention will become apparent after a careful reading of the detailed description with appropriate reference to the accompanying drawings.
-
FIG. 1 is a partially broken perspective cross-sectional view of a vacuum breaker in accordance with the preferred embodiment of the present invention. -
FIG. 2 is a partially exploded perspective view of the vacuum breaker in accordance with the preferred embodiment of the present invention. -
FIG. 3 is a cross-sectional assembly view of the vacuum breaker in accordance with the preferred embodiment of the present invention. -
FIG. 4 is a schematic operational view of the vacuum breaker as shown inFIG. 3 , wherein water enters the vacuum breaker. -
FIG. 5 is a schematic operational view of the vacuum breaker as shown inFIG. 3 , wherein the water flow stops. - Referring to the drawings and initially to
FIGS. 1-3 , a vacuum breaker in accordance with the preferred embodiment of the present invention comprises amain body 10, abushing 70 mounted in themain body 10, anelastic member 20 mounted in themain body 10, abraking member 30 mounted in themain body 10, awater stop gasket 40 mounted in themain body 10, awater inlet disk 50 mounted in themain body 10, and awasher 60 mounted in themain body 10. - The
main body 10 has a periphery provided with a plurality ofair vent holes 17 located under thewater stop gasket 40 and connected to an interior of themain body 10. Thebraking member 30 presses thewater stop gasket 40. Theelastic member 20 pushes thebraking member 30 toward the water stop gasket 40 so that thebraking member 30 presses thewater stop gasket 40. Thewater stop gasket 40 has a center provided with a firstwater inlet hole 41. Thewater inlet disk 50 has a periphery provided with a plurality of secondwater inlet holes 51 misalign with the firstwater inlet hole 41 of thewater stop gasket 40. Thebushing 70 has a center provided with awater outlet hole 72. Theair vent holes 17 of themain body 10 are equally distant from each other. The interior of themain body 10 is provided with apositioning groove 18. Thebushing 70 is made of metallic material and has an exterior provided with apositioning protrusion 74 secured in and combined integrally with thepositioning groove 18 of themain body 10. In fabrication, thebushing 70 is extruded outward by an oil pressure to form thepositioning protrusion 74. - In assembly, the
bushing 70 is secured in themain body 10. Thewater stop gasket 40 is located above thebraking member 30. Theelastic member 20 is biased between the bushing 70 and thebraking member 30 to push thebraking member 30 toward thewater stop gasket 40. Thewater inlet disk 50 is located above thewater stop gasket 40. Thewasher 60 is located above thewater inlet disk 50. - In the preferred embodiment of the present invention, the
water stop gasket 40 is made of resilient material. - In the preferred embodiment of the present invention, the
elastic member 20 is a compression spring. - In the preferred embodiment of the present invention, the
braking member 30 has a bottom provided with a plurality of retainingportions 31. Thebushing 70 has a lower end provided with aninner flange 71. Theelastic member 20 is mounted in the bushing 70 and is biased between thebraking member 30 and the bushing 70. Theelastic member 20 has an upper end retained in theretaining portions 31 of thebraking member 30 and a lower end resting on theinner flange 71 of thebushing 70. - In the preferred embodiment of the present invention, the
main body 10 has a first end provided with an internal thread 11 and a second end provided with anexternal thread 12. Thewasher 60 is located between the internal thread 11 of themain body 10 and thewater inlet disk 50. Thepositioning groove 18 of themain body 10 corresponds to theexternal thread 12. A first pipe 1 (seeFIG. 4 ) is screwed into the internal thread 11 of themain body 10 and presses thewasher 60, and a second pipe 2 (seeFIG. 4 ) is screwed onto theexternal thread 12 of themain body 10. - In the preferred embodiment of the present invention, the
water stop gasket 40 is located between thebraking member 30 and thewater inlet disk 50 and has a periphery provided with anarcuate lip 42 curved upward. Thewater inlet disk 50 is located between thewasher 60 and thewater stop gasket 40. - In the preferred embodiment of the present invention, the interior of the
main body 10 is provided with a firststepped edge 13, a secondstepped edge 14, a third steppededge 15 and a fourthstepped edge 16. Thebushing 70 is mounted in the firststepped edge 13 of themain body 10. The lower end of thebushing 70 is provided with anouter flange 73 resting on the firststepped edge 13 of themain body 10. Thewater stop gasket 40 is mounted in the secondstepped edge 14 of themain body 10. Thewater inlet disk 50 is mounted in the thirdstepped edge 15 of themain body 10. Thewasher 60 is mounted in the fourth steppededge 16 of themain body 10. The air vent holes 17 of themain body 10 correspond to the second steppededge 14 of themain body 10. - In the preferred embodiment of the present invention, the
bushing 70 is made of leadless copper material. - In operation, referring to
FIG. 4 with reference toFIGS. 1-3 , when water from the first pipe 1 flows into themain body 10, the water flows through thewasher 60 and the second water inlet holes 51 of thewater inlet disk 50 to press thewater stop gasket 40 downward, so that thewater stop gasket 40 is pushed downward to close the air vent holes 17 of themain body 10. The water then flows through the firstwater inlet hole 41 of thewater stop gasket 40 to push thebraking member 30 downward and to compress theelastic member 20. The water then flows through thebushing 70 into thesecond pipe 2 and flows outward from thesecond pipe 2. - On the contrary, referring to
FIG. 5 with reference toFIGS. 1-3 , when the water from the first pipe 1 stops flowing into themain body 10, theelastic member 20 pushes the brakingmember 30 which pushes thewater stop gasket 40 so that thewater stop gasket 40 is pressed upward to open the air vent holes 17 of themain body 10. In such a manner, ambient air flows through the air vent holes 17 of themain body 10 and thebushing 70 into thesecond pipe 2 to break a vacuum state in themain body 10, so that the water remaining in themain body 10 is drained outward from thesecond pipe 2, thereby preventing the water from staying in themain body 10, and thereby preventing thesecond pipe 2 from being broken when the water freezes. - Accordingly, the
bushing 70 made of metallic material is not deformed during the injection molding process due to the effect of thermal expansion and contraction, so that when thebushing 70 is extruded outward by the oil pressure to form thepositioning protrusion 74, thepositioning protrusion 74 is secured in thepositioning groove 18 of themain body 10, and thebushing 70 is combined with themain body 10 integrally and will not be detached from themain body 10, thereby preventing the vacuum breaker from incurring water leakage. - Although the invention has been explained in relation to its preferred embodiment(s) as mentioned above, it is to be understood that many other possible modifications and variations can be made without departing from the scope of the present invention. It is, therefore, contemplated that the appended claim or claims will cover such modifications and variations that fall within the true scope of the invention.
Claims (8)
1. A vacuum breaker comprising:
a main body;
a bushing mounted in the main body;
an elastic member mounted in the main body;
a braking member mounted in the main body;
a water stop gasket mounted in the main body;
a water inlet disk mounted in the main body; and
a washer mounted in the main body;
wherein:
the main body has a periphery provided with a plurality of air vent holes located under the water stop gasket and connected to an interior of the main body;
the braking member presses the water stop gasket;
the elastic member pushes the braking member toward the water stop gasket;
the water stop gasket has a center provided with a first water inlet hole;
the water inlet disk has a periphery provided with a plurality of second water inlet holes misalign with the first water inlet hole of the water stop gasket;
the interior of the main body is provided with a positioning groove;
the bushing is made of metallic material and has an exterior provided with a positioning protrusion secured in and combined integrally with the positioning groove of the main body; and
the bushing is extruded outward by an oil pressure to form the positioning protrusion.
2. The vacuum breaker of claim 1 , wherein the water stop gasket is made of resilient material.
3. The vacuum breaker of claim 1 , wherein the elastic member is a compression spring.
4. The vacuum breaker of claim 1 , wherein:
the braking member has a bottom provided with a plurality of retaining portions;
the bushing has a lower end provided with an inner flange;
the elastic member is mounted in the bushing and is biased between the braking member and the bushing; and
the elastic member has an upper end retained in the retaining portions of the braking member and a lower end resting on the inner flange of the bushing.
5. The vacuum breaker of claim 1 , wherein the main body has a first end provided with an internal thread and a second end provided with an external thread.
6. The vacuum breaker of claim 1 , wherein the water stop gasket has a periphery provided with an arcuate lip curved upward.
7. The vacuum breaker of claim 1 , wherein:
the interior of the main body is provided with a first stepped edge, a second stepped edge, a third stepped edge and a fourth stepped edge;
the bushing is mounted in the first stepped edge of the main body;
the lower end of the bushing is provided with an outer flange resting on the first stepped edge of the main body;
the water stop gasket is mounted in the second stepped edge of the main body;
the water inlet disk is mounted in the third stepped edge of the main body; and
the washer is mounted in the fourth stepped edge of the main body.
8. The vacuum breaker of claim 1 , wherein the bushing is made of leadless copper material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/450,065 US20180251968A1 (en) | 2017-03-06 | 2017-03-06 | Vacuum Breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/450,065 US20180251968A1 (en) | 2017-03-06 | 2017-03-06 | Vacuum Breaker |
Publications (1)
Publication Number | Publication Date |
---|---|
US20180251968A1 true US20180251968A1 (en) | 2018-09-06 |
Family
ID=63357310
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US15/450,065 Abandoned US20180251968A1 (en) | 2017-03-06 | 2017-03-06 | Vacuum Breaker |
Country Status (1)
Country | Link |
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US (1) | US20180251968A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6746154B2 (en) * | 2001-10-08 | 2004-06-08 | Federal-Mogul World Wide, Inc. | Lead-free bearing |
US7458388B2 (en) * | 2006-04-18 | 2008-12-02 | Chung Yi Huang | Freeze safe valve |
US9091378B2 (en) * | 2013-04-30 | 2015-07-28 | Chin Tang CHUANG | Tube coupling device |
-
2017
- 2017-03-06 US US15/450,065 patent/US20180251968A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6746154B2 (en) * | 2001-10-08 | 2004-06-08 | Federal-Mogul World Wide, Inc. | Lead-free bearing |
US7458388B2 (en) * | 2006-04-18 | 2008-12-02 | Chung Yi Huang | Freeze safe valve |
US9091378B2 (en) * | 2013-04-30 | 2015-07-28 | Chin Tang CHUANG | Tube coupling device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |