IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0002944
(2004-12-01)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
14 인용 특허 :
5 |
초록
▼
A vacuum pump valve includes a valve body and a suction diaphragm. The valve body includes a sealing platform sealedly attached on the container at the opening thereof, and a guiding sleeve upwardly extended from the sealing platform to form a suction channel, wherein the sealing platform has an ope
A vacuum pump valve includes a valve body and a suction diaphragm. The valve body includes a sealing platform sealedly attached on the container at the opening thereof, and a guiding sleeve upwardly extended from the sealing platform to form a suction channel, wherein the sealing platform has an operation slot formed thereon at a position within the suction channel and at least a through ventilating groove communicating the receiving cavity of the container with an exterior thereof. The suction diaphragm is disposed within the suction channel of the valve body, including an enlarged sealing head adapted to seal on the sealing platform to enclose the ventilating groove thereof, and a guiding shaft extended from the sealing head to slidably mounted at the sealing platform at the operation slot to move the sealing head between a releasing position and a sealing position.
대표청구항
▼
What is claimed is: 1. A vacuum pump valve of a container having a receiving cavity subject to an interior pressure and an opening communicating with said receiving cavity, wherein said vacuum pump valve comprises: a valve body comprising a sealing platform sealedly attached on said container at sa
What is claimed is: 1. A vacuum pump valve of a container having a receiving cavity subject to an interior pressure and an opening communicating with said receiving cavity, wherein said vacuum pump valve comprises: a valve body comprising a sealing platform sealedly attached on said container at said opening thereof, and a guiding sleeve upwardly extended from said sealing platform to form a suction channel, wherein said sealing platform has an operation hole formed thereon at a position within said suction channel and at least a through ventilating groove communicating said receiving cavity of said container with an exterior thereof, so as to allow suction of air from said receiving cavity through pressure differential between said interior pressure and an atmosphere pressure; a suction element, which is disposed within said suction channel of said valve body, comprising an enlarged sealing head adapted to seal on said sealing platform to enclose said ventilating groove thereof and a guiding shaft which is extended from said sealing head and is slidably mount at said sealing platform at said operation hole to move said sealing head between a releasing position and a sealing position, wherein at said releasing position, said guiding shaft is upwardly slid along said operation hole to upwardly pull said sealing head apart from said sealing platform so as to allow air in said receiving cavity to be withdrawn through said ventilating groove, and at said sealing position, where said atmosphere pressure is greater than said interior pressure, said guiding shaft is forced to downwardly slide along said operation hole to seal said sealing head on said sealing platform at said ventilating groove so as to retain said container in a vacuum manner, wherein said guiding shaft of said suction element has a diameter smaller than a diameter of said operation hole define a ventilating clearance between a surrounding wall of said guiding shaft and said operation hole, wherein said ventilating clearance is embodied as said ventilating groove to communicate said receiving cavity with said exterior thereof for allowing air to pass therethrough, and a retention lock which comprises a tubular air passage regulator slidably disposed within said suction channel between a locked position and an unlocked position, wherein at said locked position, said air passage regulator is sealed at said guiding sleeve at a position that a bottom wall of said air passage regulator pushes said sealing head downwardly to seal on said sealing platform so as to ensure said suction element sealing on said valve body, and at said unlocked position, said air passage regulator is slidably lifted up to allow said sealing head to be pulled apart from said sealing platform for discharging said air in said receiving cavity. 2. The vacuum pump valve, as recited in claim 1, wherein said air passage regulator has a plurality of through air passage holes formed on said bottom wall of said air passage regulator for communicating said suction channel, such that said air within said receiving cavity is discharged out of said container from said suction channel to said air passage regulator through said air passage holes when said air passage regulator is slid upwardly at said unlocked position. 3. The vacuum pump valve, as recited in claim 1, wherein said retention lock further comprises a sealing actuator and a tubular guiding rotor provided in said air passage regulator within said suction channel for linearly moving said air passage regulator between said locked position and said unlock position. 4. The vacuum pump valve, as recited in claim 2, wherein said retention lock further comprises a sealing actuator and a tubular guiding rotor provided in said air passage regulator within said suction channel for linearly moving said air passage regulator between said locked position and said unlock position. 5. The vacuum pump valve, as recited in claim 3, wherein said guiding rotor has at least one guiding track spirally formed at an outer circumferential surface thereof, and said air passage regulator further has an engaging pin protruded from a sidewall thereof to slidably engage with said guiding track of said guiding rotor, wherein when said guiding rotor is driven to rotate, said engaging pin is slidably moved along said guiding track to drive said air passage regulator upwardly along said suction channel until said air passage regulator is moved at said unlock position, where air is allowed to pass through said ventilating groove and said air passage holes for being extracted to create a vacuum effect in said receiving cavity. 6. The vacuum pump valve, as recited in claim 4, wherein said guiding rotor has at least one guiding track spirally formed at an outer circumferential surface thereof, and said air passage regulator further has an engaging pin protruded from a sidewall thereof to slidably engage with said guiding track of said guiding rotor, wherein when said guiding rotor is driven to rotate, said engaging pin is slidably moved along said guiding track to drive said air passage regulator upwardly along said suction channel until said air passage regulator is moved at said unlock position, where air is allowed to pass through said ventilating groove and said air passage holes for being extracted to create a vacuum effect in said receiving cavity. 7. The vacuum pump valve, as recited in claim 2, wherein said valve body further comprises a sealing ring disposed between an upper side of said sealing platform and a lower side of said sealing head of said suction element in such a manner to coaxially align with said operation hole for selectively blocking said ventilating groove from communicating said receiving cavity and said exterior thereof. 8. The vacuum pump valve, as recited in claim 6, wherein said valve body further comprises a sealing ring disposed between an upper side of said sealing platform and a lower side of said enlarged sealing head of said suction element in such a manner to coaxially align with said operation hole for selectively blocking said ventilating groove from communicating said receiving cavity and said exterior thereof. 9. The vacuum pump valve, as recited in claim 6, further comprising a vacuum separator spacedly mounted underneath said valve body within said receiving cavity to prevent said air being directly extracted towards said suction element from said receiving cavity, wherein a vacuum gap is formed between said guiding sleeve and a top edge of said vacuum separator for allowing said air to be withdrawn to said suction element through said vacuum opening. 10. The vacuum pump valve, as recited in claim 8, further comprising a vacuum separator spacedly mounted underneath said valve body within said receiving cavity to prevent said air being directly extracted towards said suction element from said receiving cavity, wherein a vacuum gap is formed between said guiding sleeve and a top edge of said vacuum separator for allowing said air to be withdrawn to said suction element through said vacuum opening. 11. The vacuum pump valve, as recited in claim 6, further comprises a date indicator provided on said valve body to indicate a vacuuming date of said container. 12. The vacuum pump valve, as recited in claim 8, further comprises a date indicator provided on said valve body to indicate a vacuuming date of said container. 13. The vacuum pump valve, as recited in claim 10, further comprises a date indicator provided on said valve body to indicate a vacuuming date of said container.
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