IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0048803
(2008-03-14)
|
등록번호 |
US-8113246
(2012-02-14)
|
우선권정보 |
CN-2007 1 0151474 (2007-10-19) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
24 |
초록
▼
A vacuum fresh-keeping cover includes an upper cover, a top of which is connected with an air suction-ventilation device, a lower rim of which is connected with a soft gasket that can be suppressed on any horizontal surface, and an interior of which is formed with a container space. When a barometri
A vacuum fresh-keeping cover includes an upper cover, a top of which is connected with an air suction-ventilation device, a lower rim of which is connected with a soft gasket that can be suppressed on any horizontal surface, and an interior of which is formed with a container space. When a barometric value of the container space gets larger, the air suction-ventilation device is activated to expel out air in the container space continuously, to keep the container space at a near vacuum condition for preserving objects or food. When pulling up a touching element of the air suction-ventilation device, the air in the container space is drained out by the air suction-ventilation device to quickly remove the upper cover, to facilitate consumers for use, and to conveniently separate the air suction-ventilation device from the upper cover, for easily washing the upper cover with water.
대표청구항
▼
1. A vacuum fresh-keeping cover comprising an upper cover, an interior of which is provided with a container space, a top of which is connected to an air suction-ventilation device, and a lower rim of which is provided with a connecting part; a soft gasket, a side of which is provided with a connect
1. A vacuum fresh-keeping cover comprising an upper cover, an interior of which is provided with a container space, a top of which is connected to an air suction-ventilation device, and a lower rim of which is provided with a connecting part; a soft gasket, a side of which is provided with a connecting slot, with the connecting slot being air-tightly fitted into the connecting part and the soft gasket flexibly deforming downward in an air-tight condition, so as to be tightly suppressed on a surface; the air suction-ventilation device which is connected above the upper cover and is composed of a bottom air suction-ventilation hole being connected with the container space, a top touching element being able to displace up and down, an air suction pump, and a lower spring leaf and an upper spring leaf at a side of the air suction pump; and a barometric sensing element, a top of which is provided with a projected body being connected at the lower spring leaf, such that when a barometric value of the container space is detected high by the barometric sensing element, the barometric sensing element is driven by the high barometric value to be flexibly ascended and restored, so as to drive simultaneously the lower spring leaf to ascend to touch the upper spring leaf, thereby conducting an electric circuit to activate the air suction pump for drawing air inside the container space out of the upper cover through the air suction-ventilation hole, whereas, when the barometric value of the container space decreases, the barometric sensing element flexibly descending and displacing by an operation of a negative pressure in the container space, to drive the lower spring leaf to descend and displace, thereby forming an off-circuit condition by the upper and lower spring leaves to stop the air suction pump. 2. The vacuum fresh-keeping cover according to claim 1, wherein the touching element is pressed down and displacing to drive and touch the upper spring leaf, allowing the upper spring leaf to elastically descend to touch the lower spring leaf, so as to manually conduct electricity to the upper and lower spring leaves, and to activate the air suction pump, thereby expelling the air in the container space out of the upper cover. 3. The vacuum fresh-keeping cover according to claim 1, wherein a lower end of the air suction-ventilation device is provided with a screw tube, an outer surface of which is disposed with a male thread, with a part of the screw tube above the male thread being mantled and sealed with a soft gasket; above the upper cover being provided with a through-hole into which the screw tube is transfixed; a screw sleeve, an interior of which is provided with a female thread, and a bottom of which is provided with a sealing surface being disposed with the air suction-ventilation hole; the female thread being screwed with the male thread, and the soft gasket being tightly fitted and abutted at a rim of the through-hole, allowing the air suction-ventilation hole to be connected with an interior space of the screw tube. 4. The vacuum fresh-keeping cover according to claim 3, wherein a center on a lower surface of a circular ring body of the air suction-ventilation device is integrally formed with the screw tube, a top surface in an interior of the screw tube is provided respectively with a first venthole, a second venthole and a third venthole; along two side surfaces of the screw tube being provided respectively with a left groove and a right groove for connecting and emplacing batteries; an outer periphery of the circular ring body being provided with a male thread; a circular ring inner cap, an interior of which is provided with a central through-hole, and an inner wall of a periphery of which is provided with a female thread, with the female thread being screwed with the male thread, and the central through-hole being transfixed and tightly fitted with a surface of the soft gasket located at an outer surface of the screw tube. 5. The vacuum fresh-keeping cover according to claim 4, wherein a top of the circular ring body of the air suction-ventilation device is connected with an upper cap, a top of the upper cap is provided with an insertion slot, and a bottom of the insertion slot is provided respectively with a first through-hole, a second through-hole, and a connection hole; the touching element being an elliptical housing, with an interior being provided respectively with a first rod and a long rod; the touching element being loosely inserted into the insertion slot and displacing up and down vertically in the insertion slot; the first rod being inserted into the first through-hole, and the long rod being inserted into the connection hole. 6. The vacuum fresh-keeping cover according to claim 4, wherein the circular ring body is provided with an internal chamber, and an interior of the internal chamber is provided respectively with a left projected body and a right projected body, connection ends of the left and right projected bodies being connected respectively with metallic conducting pieces to serve as connection of electrodes of the air suction pump; other ends of the left and right projected bodies being connected respectively with the metallic upper spring leaf and lower spring leaf; two contact ends of the upper and lower spring leaves being contacted and separated properly, to control electric activation and deactivation of the air suction pump. 7. The vacuum fresh-keeping cover according to claim 6, wherein an interior of the internal chamber is further provided with the rectangular recess, an interior of the rectangular recess is provided with an inner circular groove, a bottom of the inner circular groove is provided with a connection hole, and along a periphery of the connection hole is provided with at least one first venthole; a flexible membrane element, an upper surface of which is a circular membrane, a lower end of which is provided with a cone-shape pillar and a neck part, with the cone-shape pillar being transfixed and tightly fitted into the connection hole; the circular membrane being loosely connected into a slot surface of the inner circular groove to close and open the first venthole, a side of the inner circular groove being concaved with a second access, and a tail end of the second access being put up with a post; a side of the inner circular groove being concaved with a first access, and a tail end of the first access being formed with a small circular groove. 8. The vacuum fresh-keeping cover according to claim 7, wherein an interior of the rectangular recess is emplaced with a first soft plate, and a body of the first plate is provided respectively with a large circular hole, a first through-hole, with a hole wall being linearly disposed with a first trench correspondingly mantled on the first access in the rectangular recess to form an air passage; and a second through-hole, with a hole wall being linearly disposed with a second trench tightly fitted into the post of the rectangular recess to form an air gap; the second trench being correspondingly mantled on the second access to form an air passage, and the large circular hole being sheathed on a side surface of a projected ring of the inner circular groove. 9. The vacuum fresh-keeping cover according to claim 8, wherein an interior of the rectangular recess is emplaced with a second hard plate which is mantled on a surface of the first plate, and is provided respectively with an inner groove, an interior of which being provided with an air permeable hole, and which being correspondingly mantled into the large circular hole of the first plate; a first air permeable hole, which is correspondingly connected with the first through-hole on the first plate; a second air permeable hole, which is correspondingly connected with the second through-hole of the first plate; and a linear trench, which is formed on an upper surface of the second plate, with a tail end of the trench forming a small circular groove. 10. The vacuum fresh-keeping cover according to claim 1, wherein an inner wall at a bottom of the soft gasket is formed with an inner cone surface which is tightly fitted on a horizontal surface. 11. The vacuum fresh-keeping cover according to claim 1, wherein the surface is a surface at an outer periphery of a seat. 12. The vacuum fresh-keeping cover according to claim 1, wherein the surface is a surface of a desktop. 13. The vacuum fresh-keeping cover according to claim 1, wherein the air suction pump is provided with a rectangular seat, an interior of the rectangular seat is provided with a groove into which is provided respectively with two upright air ducts, a first round hole and a second round hole; whereas, a soft air driver being fitted into the second round hole, a projected body at a an upper end being connected on an off-center shaft of the air suction pump, an interior at a lower end being provided with an air driving chamber for compression and deformation, and two sides at a front end being provided respectively with a first guide hole and a second guide hole, with the first guide hole being connected with the first air duct, and the second guide hole being connected with the second air duct; the barometric sensing element being made by a flexible material, and being constituted by the projected body and a horizontal rectangular plate at a bottom; an interior of the projected body being provided with a hollow chamber, the projected body being protruded out of the first round hole, and the rectangular plate being provided respectively with an upper movable valve reed and a lower movable valve reed; a lower side of the upper movable valve reed forming a transversal air access, a tail end of which is formed with a second through-hole; a first through-hole being located on the rectangular plate and correspondingly connected with the first guide hole and the first air duct, whereas, the second through-hole being correspondingly connected with the second guide hole and the second air duct. 14. The vacuum fresh-keeping cover according to claim 1, wherein a third hard plate is emplaced in a rectangular recess, and is located on a surface of the rectangular plate of the barometric sensing element; the third plate being provided with following parts including a shallower first groove, an interior of which is dug out with a deeper second groove being provided with a through-hole A and a through-hole B, with the through-hole A being mantled and connected on the upper movable valve reed, and the through-hole B being mantled and connected on the lower movable valve reed; a first air permeable hole, which is located in the first groove, with an upper hole end being connected with the first guide hole and the first air duct, and a lower hole end being connected with the first through-hole of the barometric sensing element; a second air permeable hole, which is located in the first groove, with an upper hole end being connected with the second guide hole and the second air duct, and a lower hole end being connected with the second through-hole of the barometric sensing element; and a round through-hole, which is located at a side of the first groove and sheathed with the projected body of the barometric sensing element.
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