CN101167593A - Method for reducing pressure of close space, vacuum bellows and device possessing vacuum bellow - Google Patents

Method for reducing pressure of close space, vacuum bellows and device possessing vacuum bellow Download PDF

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Publication number
CN101167593A
CN101167593A CNA2007101639972A CN200710163997A CN101167593A CN 101167593 A CN101167593 A CN 101167593A CN A2007101639972 A CNA2007101639972 A CN A2007101639972A CN 200710163997 A CN200710163997 A CN 200710163997A CN 101167593 A CN101167593 A CN 101167593A
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CN
China
Prior art keywords
leather sheath
vacuum
pressure
enclosure space
vacuum leather
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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.)
Pending
Application number
CNA2007101639972A
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Chinese (zh)
Inventor
E·米拉蒙
J·斯图宾
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INVENTAL LAB Inc
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INVENTAL LAB Inc
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Publication date
Priority claimed from US11/588,590 external-priority patent/US20070104601A1/en
Application filed by INVENTAL LAB Inc filed Critical INVENTAL LAB Inc
Publication of CN101167593A publication Critical patent/CN101167593A/en
Pending legal-status Critical Current

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Abstract

A method of reducing pressure within an enclosed space includes sealing a vacuum leather sheath to the enclosed space, reducing pressure within the enclosed space by operating the vacuum leather sheath, equalizing a pressure in the enclosed space and the vacuum leather sheath to the desired pressure and collapsing the vacuum leather sheath. A vacuum leather sheath is also disclosed in the present invention, it comprises a top wall of an exhausting one-way valve for exhausting the air from the vacuum leather sheath, a bottom wall with inner one-way valve and equalizing valve, and a soft leather sheath body for connecting the top wall and the bottom wall, the inner one-way valve sucks the air in the vacuum leather sheath so as to decrease pressure of the enclosed space, the equalizing valve equalizes pressure of the leather sheath to the pressure of the enclosed space. Finally, a device comprising an enclosed space, a vacuum leather sheath enclosed by the enclosed space, a combined type vacuum relieving valve and a vacuum indicator is also provided in the present invention.

Description

Reduce method, the vacuum leather sheath of the pressure in the enclosure space and have the device of vacuum leather sheath
Technical field
The present invention relates generally to the apparatus and method that container applied vacuum.
Background technology
Usually, packing, distribution, sale and the storage of perishable items (for example flavouring, dip, vegetables and other food) are finished in various container (as box, jar, bottle etc.).In container, generally there is pressure below atmospheric pressure (for example vacuum-packed), fresh-keeping with the perishable items that helps to be adorned.Unfortunately, in case container is opened, this subatmospheric air pressure is just replaced by atmospheric pressure.
But someone develops and has proposed to obtain to be used for the measure of the homing position type lid of various different vessels.Some lid even have in the subatmospheric condition lower seal or the ability of airtight container again., previous all measures that propose all can't provide a kind of cheapness, easily use and easy to clean and can indicate the lid that in container, still has pressure below atmospheric pressure.
Summary of the invention
Say that briefly the present invention has satisfied these needs by a kind of vacuum leather sheath is provided, this vacuum leather sheath also indicate with space that the vacuum leather sheath is associated in the pressure that exists.People should be realized that the present invention can implement according to many modes, comprise in the mode of method, equipment, system, computer readable carrier or utensil and implementing.Below, several embodiment ingenious of the present invention is described.
An embodiment provides a kind of method that reduces the pressure in the enclosure space, and it comprises: the vacuum leather sheath is sealed to enclosure space; By the pressure in the operation vacuum leather sheath reduction enclosure space; Pressure in the balanced vacuum leather sheath equals the pressure in the enclosure space; Make the vacuum leather sheath recessed flat.
This method can comprise that also the pressure in the balanced enclosure space equals external atmosphere pressure.At this moment, balanced enclosure space internal pressure equals external atmosphere pressure and can realize by the vacuum release (relief) valve that has vacuum indicator.Vacuum indicator can comprise sacculus, and the pressure that this sacculus becomes in recessed this enclosure space of flat expression is lower than external atmosphere pressure.
The pressure that reduces in the enclosure space by operation vacuum leather sheath can comprise expansion vacuum leather sheath and compression vacuum leather sheath.Expansion vacuum leather sheath comprises to be opened internal check valve, closes outer check valve and air is pumped into the vacuum leather sheath from enclosure space.The compression vacuum leather sheath comprises closes internal check valve substantially, opens outer check valve and forces air to flow out the vacuum leather sheath through outer check valve.The desired pressure in reaching enclosure space is carried out in the expansion of vacuum leather sheath and compression repeatedly.
Internal check valve comprises primary sealing area and secondary sealing area, closes internal check valve substantially and can comprise the sealing fully that prevents between primary sealing area and the secondary sealing area.Internal check valve can comprise primary sealing area and secondary sealing area, and at least one in primary sealing area and the secondary sealing area has balancing slit.
Pressure in the balanced vacuum leather sheath equals pressure in the enclosure space can comprise that to make the vacuum leather sheath automatically recessed flat.The pressure that pressure in the balanced vacuum leather sheath equals in the enclosure space can comprise the equal pressure gas stream of generation from the vacuum leather sheath to enclosure space.This equal pressure gas stream is less than the air-flow that is pumped to from enclosure space when operating the vacuum leather sheath in the vacuum leather sheath.
Another embodiment provides a kind of method that reduces the pressure in the enclosure space, and it comprises seals the vacuum leather sheath to enclosure space and by the pressure in the operation vacuum leather sheath reduction enclosure space.The pressure that reduces in the enclosure space by operation vacuum leather sheath can comprise expansion vacuum leather sheath and compression vacuum leather sheath.Expansion vacuum leather sheath comprises to be opened internal check valve, closes outer check valve and air is pumped to the vacuum leather sheath from enclosure space.Internal check valve comprises primary sealing area and secondary sealing area, and primary sealing area and secondary sealing area form incomplete sealing when being in contact with one another.The compression vacuum leather sheath comprises closes internal check valve substantially, opens outer check valve and forces air to flow out the vacuum leather sheath through outer check valve.This method comprises that also the pressure in the balanced vacuum leather sheath equals the pressure in the enclosure space, and this comprises and allows all to press air to flow into enclosure space from the vacuum leather sheath, and this method comprises that to make the vacuum leather sheath recessed flat.
Another embodiment provides a kind of vacuum leather sheath, it comprise roof from the vacuum leather sheath, have the diapire of internal check valve and equalizing valve and be connected roof with exhaust check valve that air is discharged and diapire on the nappa body, to reduce the pressure in the enclosure space, the pressure in the balanced vacuum leather sheath of this equalizing valve equals the pressure in the enclosure space to this internal check valve with air suction vacuum leather sheath.Roof can have import, is used to provide the inlet that enters the vacuum leather sheath.Roof can have vacuum release (relief) valve.
Above-mentioned vacuum leather sheath also comprises combined type vacuum release (relief) valve and vacuum indicator, this combined type vacuum release (relief) valve and vacuum indicator indicate the pressure in this enclosure space when to be lower than external atmosphere pressure, and the pressure in this combined type vacuum release (relief) valve and down balanced in working order this enclosure space of vacuum indicator equals external atmosphere pressure.
The vacuum leather sheath can be sealed to enclosure space.The vacuum leather sheath can be sealed to enclosure space according to dismountable mode.Roof can have operating parts.
Internal check valve and equalizing valve are combined in unidirectional in single/equalizing valve.Internal check valve comprises primary sealing area and secondary sealing area, and down, primary sealing area and secondary sealing area form incomplete sealing in off position.
Internal check valve can comprise primary sealing area and secondary sealing area.At least one sealing surface in primary sealing area and the secondary sealing area can have balancing slit.
The vacuum leather sheath also can have sealing ring, but the sealing circle is sealed and matched with the seal receptacle groove on separating type and the diapire.The seal receptacle groove can have at least one in interior protuberance and the male part, and protuberance can be sealed on the inner surface of sealing ring in this, and this male part can be sealed on the outer surface of sealing ring.
According to another aspect of the present invention, provide a kind of enclosure space and quilt of comprising to seal to the device of the vacuum leather sheath of this enclosure space, wherein this vacuum leather sheath reduces the pressure in this enclosure space when being operated, said apparatus comprises combined type vacuum release (relief) valve and vacuum indicator, this combined type vacuum release (relief) valve and vacuum indicator indicate that the pressure in this enclosure space is suitable to be lower than external atmosphere pressure, and the pressure in this combined type vacuum release (relief) valve and down balanced in working order this enclosure space of vacuum indicator equals external atmosphere pressure.
In said apparatus, this combined type vacuum release (relief) valve and vacuum indicator can comprise sacculus, and the pressure that sacculus becomes in recessed this enclosure space of flat expression is lower than external atmosphere pressure.Said apparatus can also comprise equalizing valve, and the pressure in balanced this vacuum leather sheath of this equalizing valve equals the pressure in this enclosure space.
In conjunction with the accompanying drawing that illustrates the principle of the invention, people are will be from following specifying clear to see other aspects and advantages of the present invention.
Description of drawings
Specify and with reference to accompanying drawing, people will understand the present invention easily by following.
Fig. 1 is the perspective view according to the vacuum leather sheath of the embodiment of the invention.
Fig. 2 is the side view according to the vacuum leather sheath of the embodiment of the invention.
Fig. 3 is the vertical view according to the vacuum leather sheath of the embodiment of the invention.
Fig. 4 A is the cutaway top view according to the vacuum leather sheath of the embodiment of the invention.
Fig. 4 B and Fig. 4 C represent according to the vacuum leather sheath embodiment of the invention, that be opened.
Fig. 4 D and Fig. 4 E represent the detail view according to the interior unidirectional/equalizing valve of the embodiment of the invention.
Fig. 5 is the upward view according to the lid of the embodiment of the invention.
Fig. 6 is that expression is according to the flow chart embodiment of the invention, that reduce the method for the pressure in the enclosure space.
Fig. 7 is that expression is according to the flow chart embodiment of the invention, that reduce the method for the pressure in the enclosure space.
The specific embodiment
Several example embodiment of vacuum leather sheath will be described now.Those skilled in the art will obviously recognize, can realize the present invention under the situation of omitting some or all of specific detail described herein.
The vacuum leather sheath can be added in the packaging system (for example, container or sealing bag or any other suitable enclosure space).The vacuum leather sheath can be used to simply reduce the pressure in the enclosure space.The reduction of enclosure space internal pressure can improve the storage capacity of enclosure space as described above.The vacuum leather sheath allows enclosure space to be depressurized to pressure below atmospheric pressure repeatedly, the result, and article and any residue article that just can obtain the enclosure space the inside can be stored under the pressure below atmospheric pressure again.
Fig. 1 is that this container comprises vacuum leather sheath 100 according to the perspective view of the container of the embodiment of the invention or enclosure space 155.As shown in the figure, less similar container 155A-155B is arranged in container or enclosure space 155.Vacuum leather sheath 100 can be installed in the lid 150 or other surface of enclosure space 155, and perhaps the vacuum leather sheath can be connected or be encased in the enclosure space.Lid 150 is connected on the enclosure space 155 in detachable mode.Vacuum leather sheath 100 can deflate (promptly enclosure space being vacuumized) in enclosure space 155, thus the pressure in the enclosure space is reduced to the atmospheric level that is lower than outside the enclosure space.When lid 150 was installed on the enclosure space 155, vacuum leather sheath 100 can be in state of erecting (i.e. expansion) or collecting state (recessed flat or compression).Although vacuum leather sheath 100 is the lid of container or enclosure space 155 or the part of roof as shown in the figure, people should be realized that the vacuum leather sheath can be positioned in or be retrofitted in any suitable surface of enclosure space.For example, vacuum leather sheath 100 can be added in the sidewall of enclosure space 155.In another embodiment, vacuum leather sheath 100 can be fixed on the sidewall, and enclosure space can be again a sealing bag.
Fig. 2 is the side view according to the vacuum leather sheath 100 of the embodiment of the invention.Fig. 3 is the vertical view according to the vacuum leather sheath 100 of the embodiment of the invention.Fig. 4 A is the cutaway top view according to the vacuum leather sheath 100 of the embodiment of the invention, and Fig. 4 B and Fig. 4 C represent according to vacuum leather sheath 100 embodiment of the invention, that be opened.Referring to Fig. 1 to Fig. 4 C, vacuum leather sheath 100 comprises leather sheath body 102, roof 104 and diapire 106.Leather sheath body 102 is made by flexible material.Leather sheath body 102 perhaps can have shaping wrinkle 108 or pleat, is convenient at the recessed gauffer that produces when flat of leather sheath body.For the purpose of security, shaping wrinkle 108 can be reinforced, for example flexible material thickness or the increase flexible material extra play by increasing the wrinkle place.
Vacuum leather sheath 100 is made by pore-free material.Leather sheath body 102 is made to allow the leather sheath cubical expansion to contract by flexible material.Flexible material can be any suitable material, as plastics, rubber, silicone or similar atresia flexible material.The roof 104 of vacuum leather sheath and diapire 106 can be with making than harder material or the combined material of flexible material of making leather sheath body 102.For example, the roof 104 and the diapire 106 of vacuum leather sheath 100 can be made by polyethylene, and leather sheath body 102 can be made by silicone.
Vacuum leather sheath 100 can be assembled and linked together by one or more flexible material spares (for example sheet).For example, many flexible material spares can be cut into intended shape, bond together by heat or adhesive subsequently, form vacuum leather sheath 100.Vacuum leather sheath 100 can be made according to the form of one or more molded flexible materials.Accurate molding process can be any method of moulding that is applicable to molded selected flexible material.If vacuum leather sheath 100 with more than the mode of one material pieces molded form or thus cutting form, then these material pieces can be joined together subsequently, form leather sheath.
Vacuum leather sheath 100 also can be by making more than a kind of material.For example, the roof of vacuum leather sheath 100 and diapire can be made by rigidity plastics, and leather sheath body 102 is made by soft plastics, rubber, silicone or its composition.
The roof 104 of vacuum leather sheath 100 can have handle or operating parts 110.Vacuum leather sheath 100 can be by mentioning or opening operation part 110 is expanded.When 100 expansions of vacuum leather sheath, air is pumped to the vacuum leather sheath from enclosure space through internal check valve 116.Shown in Fig. 4 A, the part of roof 104 can have import 113, so that the inside of cleaning vacuum leather sheath 100.This import can have exhaust check valve 114.This import can be sealed on the roof 104.
Pressing operation spare 110 makes vacuum leather sheath 100 recessed flat, and this has increased the pressure in the vacuum leather sheath.Pressure in the vacuum leather sheath increases and causes internal check valve 116 to close, and exhaust check valve 114 is opened, and forces air in the vacuum leather sheath exhaust check valve of flowing through.Exhaust check valve 114 is installed on the outside of vacuum leather sheath 100 (for example on roof 104).Internal check valve 116 is between vacuum leather sheath 100 and enclosure space 155.
Now, referring to Fig. 4 B and Fig. 4 C, vacuum leather sheath 100 can have sealing ring 124, but the sealing circle is sealed and matched with separating type and seal receptacle groove 126.Seal receptacle groove 126 can have interior protuberance 126A, and protuberance can cooperate with the inner surface or the inner peripheral surface of sealing ring 124 in this.As optional measure or mode as an alternative, seal receptacle groove 126 can have male part 126B, and this male part can be sealed and matched with the outer surface or the outer peripheral face of sealing ring 124.Sealing ring 124 perhaps has support portion 128.Support portion 128 provides random contact for operating parts 110, so as on the sealing ring 124 indentation sealing seat grooves 126 or within sealing station.Sealing ring 124 and seal receptacle groove 126 provide the passage near vacuum leather sheath 100 inside, to allow the inside of cleaning vacuum leather sheath.
People should be realized that, although sealing ring 124 and seal receptacle groove 126 roughly are annular as shown in the figure, sealing ring and seal receptacle groove can be made into other shape.For example, but sealing ring 124 and seal receptacle groove 126 can ovalize, rectangle, triangle or any other can produce the shape of suitable depressurization.Operating parts 110 perhaps can have latch hook 130A, and it can be locked on the corresponding latch hook 130B on the lid 150.
Referring to Fig. 1 to Fig. 4 A, equalizing valve 112 provides the control stream between vacuum leather sheath 100 and enclosure space 155 again.Pressure between equalizing valve 112 balanced enclosure spaces 155 and vacuum leather sheath 100 inside.The equilibrium of pressure makes the vacuum leather sheath recessed flat automatically between enclosure space 155 and vacuum leather sheath 100 inside, this be because the outer atmospheric pressure of vacuum leather sheath be higher than in the vacuum leather sheath, pressure below atmospheric pressure.Vacuum leather sheath 100 recessed flat sizes of dwindling the vacuum leather sheath allow the vacuum leather sheath to collect more compactly.Pressure below atmospheric pressure state in the space 155 that the recessed flat circumstance or state of vacuum leather sheath 100 also can be represented to be evacuated.
Vacuum leather sheath 100 pressure below atmospheric pressure states also can bring significant advantage aspect health and the storage capacity.For example, perishable (as food, medicine, chemical substance etc.) is stored in the enclosure space 155 under the subatmospheric condition of being everlasting.Unfortunately, when common vavuum pump was found time enclosure space 155, the part of perishable may be drawn in the common vavuum pump.As a result, this part perishable that is drawn in the vavuum pump can't store under subatmospheric condition usually, thereby may addle soon (for example degenerate or otherwise dirty).The perishable that is drawn in the conventional vacuum pump has also been polluted vavuum pump.In addition, in fact addled in case be drawn into the perishable of conventional vacuum pump, the article that then addle may be with the residue perishable in the after stain enclosure space 155.
Equalizing valve 112 has guaranteed, if the part of perishable is drawn in the vacuum leather sheath 100, then the pressure below atmospheric pressure of atmospheric pressure of the low pressure of enclosure space 155 and vacuum leather sheath inside guarantees that the perishable that is drawn in the vacuum leather sheath also will be stored under the subatmospheric condition.As a result, the perishable that is drawn in the vacuum leather sheath 100 should not addle in advance than the residue perishable in the enclosure space, thereby neither can pollute the vacuum leather sheath, can not pollute the residue perishable of staying in the space that is evacuated yet.
The function of internal check valve 116 and equalizing valve 112 can be combined among unidirectional in single/equalizing valve 112A.Internal check valve 116, equalizing valve 112 and interior unidirectional/one or more in equalizing valve 112A and the exhaust check valve 114 are detachable.
Fig. 4 D and Fig. 4 E represent the detailed view according to the interior unidirectional/equalizing valve 112A of the embodiment of the invention.In unidirectional/equalizing valve 112A both provided the internal check valve function, the equalizing valve function also was provided.In unidirectional/equalizing valve 112A comprises valve seat 402 and valve disc 404.Valve disc 404 is fixed on the bar 412.Bar 412 is slidably mounted in the opening 414 in the valve seat 402.Valve disc 404 comprises primary sealing area 410A, and it cooperates with secondary sealing area 410B in the valve seat 402.Bar 412 allows valve disc 404 to be lifted away from out valve seat 402, and sealing surface 410A and 410B are separated from each other.Bar 412 also can comprise flange 412A, the bottom surface 416 of its contact openings 414.The motion of flange 412A limit rod 412 and valve disc 404, but allow valve disc 404 to be lifted away from out valve seat 402 and make sealing surface 410A and 410B divides and opens.
When sealing surface 410A and the mutual butt of 410B (promptly in closing position), they do not constitute sealing fully, and this is because be formed with balancing slit 406 at least one sealing surface in sealing surface 410A and 410B.As shown in the figure, balancing slit 406 is arranged among the sealing surface 410B, but balancing slit can be additionally or is arranged on alternatively among the sealing surface 410A.The recess 408 of valve seat 402 allows valve discs 404 when closing position (being that sealing surface 410A contacts with 410B) in the retraction valve seat.Otch 408A in the recess 408 guaranteed balancing slit 406 interior unidirectional/not blocked when equalizing valve 112A is contaminated.In unidirectional/equalizing valve 112A can make by any suitable material, comprises metal, plastics, thermoplastic or other any suitable material.
At work, the end face of valve seat 402 and valve disc 404 are in vacuum leather sheath 100 sides, and enclosure space 155 is in the bottom side of valve seat and valve disc.During pressure in the pressure in the vacuum leather sheath 100 is lower than enclosure space 155 (when operating parts is upwards drawn and expands the vacuum leather sheath), valve disc 404 is drawing on the quilt on the direction 420, is separated from each other and allows air to flow into the vacuum leather sheath from enclosure space sealing surface 410A and 410B thus.During pressure in the pressure in the vacuum leather sheath 100 is higher than enclosure space 155 (when operating parts be depressed and compress or when shriveling the vacuum leather sheath), valve disc 404 is pressed down on direction 422, cause sealing surface 410A to contact and form incomplete sealing with 410B thus, this incomplete sealing has limited air substantially and has flowed into enclosure space from the vacuum leather sheath.Balancing slit 406 has prevented the sealing fully of sealing surface 410A and 410B.
When vacuum leather sheath 100 was flattened fully, balancing slit 406 allowed quite few all pressures air to flow into enclosure space 155 from the vacuum leather sheath.The result, pressure in pressure in the vacuum leather sheath 100 and the enclosure space 155 is balanced basically equate (for example in less than about 0.5 second to about 60 seconds) in the quite short time, for example in one embodiment, balancing slit 406 can be in balanced vacuum leather sheath 100 in about 5 seconds or shorter time and the pressure in the enclosure space 155.
The width of balancing slit 406 reaches is enough to allow quite few air of all pressing to flow into enclosure spaces 155 and the degree of basis equalization vacuum leather sheath internal pressure and enclosure space internal pressure in the time of expectation thus from vacuum leather sheath 100.Compare with wide balancing slit, narrow balancing slit 406 will allow pressure in the vacuum leather sheath 100 and the pressure in the enclosure space 155 to equate through the basis equalization that becomes of longer time.For example, width is about 0.1 millimeter balancing slit 406 and will allows pressure in the vacuum leather sheath 100 and the pressure in the enclosure space 155 basis equalization that becomes in about 2 seconds time to equate.And width is about 0.2 millimeter balancing slit 406 and will allows pressure in the vacuum leather sheath 100 and the pressure in the enclosure space 155 basis equalization that becomes in about 0.5 second time to equate.
Though balancing slit 406 is the air-flow force equalization mechanism as shown in the figure, people should be realized that, can adopt any structure of air from vacuum leather sheath 100 inflow enclosure spaces 155 that allow all to press.For example, can allow all to press air to flow by quite little protuberance in one of sealing surface 410A and 410B or projection, this protuberance or projection prevent that sealing surface from sealing applying fully.In another example, can provide equal pressure gas stream by an independent equalizing valve 112, the location of this equalizing valve can allow air to flow into enclosure spaces 155 from vacuum leather sheath 100, and this equalizing valve allows than from enclosure space that the slower air of the check valve 116 of air suction vacuum leather sheath (for example when the pressure in the vacuum leather sheath is lower than pressure in the enclosure space) is mobile.
Referring to Fig. 1 to Fig. 4 C, exhaust check valve 114 provides the unidirectional stream from vacuum leather sheath 100 to the ambient atmosphere outside vacuum leather sheath and enclosure space 155 again.When the vacuum leather sheath was expanded, exhaust check valve 114 also prevented to flow into the ambient atmosphere of air outside enclosure space 155 vacuum leather sheath 100.Exhaust check valve 114 can be loaded in the controls 110 or any other outer surface of vacuum leather sheath 100 in.If operating parts 110 is upwards drawn, then vacuum leather sheath 100 is expanded, and this has reduced the pressure in the vacuum leather sheath.Pressure in the vacuum leather sheath 100 reduce has closed exhaust check valve 114, opened internal check valve 116 or interior unidirectional/equalizing valve 112A.The expansion of vacuum leather sheath 100 make air through internal check valve 116 or interior unidirectional/equalizing valve 112A is drawn out of from enclosure space 155.
Fig. 5 is the upward view according to the lid 150 of the embodiment of the invention.Lid 150 can have sealing plate 160, and it constitutes the base of vacuum leather sheath 100.Sealing plate 160 also can have the sealing and/or the chimeric shape 165 of any needs, is used for producing suitable seal between sealing plate 160 and container or enclosure space 155.Internal check valve 116, equalizing valve 112 or interior unidirectional/equalizing valve 112A can be installed in the sealing plate 160.
Vacuum leather sheath 100 also can have vacuum release (relief) valve 122.Vacuum release (relief) valve 122 also can make up with vacuum indicator (as sacculus or button).Vacuum release (relief) valve 122 has two functions, allows air to return enclosure space 155, so that the pressure in the enclosure space equals the atmospheric pressure outside the enclosure space.As vacuum indicator, indication or warning user when the pressure of vacuum release (relief) valve 122 in enclosure space 155 is lower than external atmosphere pressure.For example, vacuum release (relief) valve 122 can be flattened, compresses or subside, and is lower than external atmosphere pressure with the pressure in the expression enclosure space 155.Mode can make vacuum release (relief) valve 122 bulging as an alternative, is equal to or higher than external atmosphere pressure with the pressure in the expression enclosure space 155.Vacuum release (relief) valve 122 can have sacculus as indication piece at the top, and has valve in the side, is used for air inlet.
Fig. 6 is that expression is according to the flow chart embodiment of the invention, that reduce the method flow 600 of the pressure in the enclosure space 155.In operation 605, with vacuum leather sheath 100 envelopes to enclosure space 155.Vacuum leather sheath 100 can be by being overmolded to or being connected on the enclosure space or by on the corresponding sealing surface that lid 150 is connected to enclosure space and sealed to enclosure space 155.
In operation 610, the pressure in the enclosure space 155 is lowered to the atmospheric desired pressure that is lower than the enclosure space external world.
In operation 620, in case reach subatmospheric desired pressure in enclosure space 155, the pressure between balanced enclosure space of internal check valve and the vacuum leather sheath then.Equalizing valve 112 or interior unidirectional/equalizing valve 112A counterpressure, this is because the pressure in the enclosure space 155 are lower than the pressure in the vacuum leather sheath 100.
In operation 630, when the pressure of the pressure in the enclosure space 155 in equilibrium reaches vacuum leather sheath 100, vacuum leather sheath 100 is in recessed flat state automatically.In addition, when the pressure of the pressure in the enclosure space 155 in equilibrium reaches vacuum leather sheath 100, roof 104 pulled down to closing position with operating parts 110.
Roof 104 can pulled down to the basic degree concordant with the remainder of lid 150 with operating parts 110.Operating parts 110 and roof 104 also can have snap close, and snap close fastens lid 150, thereby fix operating parts and roof on closing position.Pulleding down to the roof 104 of closing position and operating parts 110 can indicate in the enclosure space 155 and the pressure in the vacuum leather sheath 100 are lower than external atmosphere pressure.
Isostasy between vacuum leather sheath and the enclosure space 155 has realized two targets, promptly prevent to occur cross pollution during by accidental suction vacuum leather sheath 100, and remind the user in enclosure space 155, to exist or do not lose pressure below atmospheric pressure as yet as redundant apparatus when perishable.
Fig. 7 is that expression is according to the flow chart embodiment of the invention, that reduce the operation 610 of the pressure in the enclosure space 155.In operation 705, vacuum leather sheath 100 is expanded.Vacuum leather sheath 100 can be expanded by opening operation part 110 or in other any mode that is used to expand the vacuum leather sheath.The expansion of vacuum leather sheath 100 makes the pressure in the vacuum leather sheath be reduced to the pressure that is lower than in the enclosure space 155.
In operation 710, internal check valve 116 or interior unidirectional/equalizing valve 112A is opened because of the pressure in the vacuum leather sheath 100 are reduced to the pressure that are lower than in the enclosure space 155.Still in operation 710, when being reduced to the pressure that is lower than in the enclosure space 155, the pressure of exhaust check valve 114 in vacuum leather sheath 100 closes.Internal check valve 116 or interior unidirectional/opening of equalizing valve 112A allow air to flow out from enclosure space 155 to enter into vacuum leather sheath 100.
In operation 720, vacuum leather sheath 100 is compressed.Vacuum leather sheath 100 can or be depressed roof 104 by closed procedure spare 110 and be compressed.The compression of vacuum leather sheath 100 makes the pressure in the vacuum leather sheath increase to such pressure, and promptly it is higher than pressure in the enclosure space 155 and the pressure outside vacuum leather sheath and the enclosure space.
In operation 725, when the pressure in the vacuum leather sheath 100 increases to the pressure that is higher than in the enclosure space 155 and the pressure outside vacuum leather sheath and the enclosure space, internal check valve 116 or interior unidirectional/equalizing valve 112A closes.Still in operation 725, when the pressure in the vacuum leather sheath 100 increased to the pressure that is higher than in the enclosure space 155 and the pressure outside vacuum leather sheath and the enclosure space, exhaust check valve 114 was opened.Outer check valve 114 open the external environment that allows air to flow out to the vacuum leather sheath from vacuum leather sheath 100.
In operation 735, carry out operation 705 repeatedly to operation 725, the subatmospheric desired pressure in reaching enclosure space 155.
In operation 635, the pressure in the balanced enclosure space equals external atmosphere pressure.
Above-mentioned vacuum leather sheath 100 can be used to any suitable application scenario, for example comprises the container that may need pressure below atmospheric pressure of refrigerator, refrigerating box, lunch box, 5 gallons of buckets, food containers and any other types.Described vacuum leather sheath 100 can be used in the various field, comprises restaurant, medicine, chemistry, military affairs, drinks, food, coffee, tobacco or the like.People should be realized that above example is exemplary, rather than the complete possible purposes of enumerating out vacuum leather sheath 100.
Vacuum leather sheath 100 also can be made by any suitable material.For example, many plastic polymers or rubber polymer will be suitable for.An example of polymer is exactly a so-called polylefin thermoplatic rubber (Santoprene), but also can adopt other similar polymerization thing.Air bleeding valve 114, internal check valve 112,112A and 116 and vacuum release (relief) valve 122 also can make by different materials.For example, many plastic polymers or rubber polymer will be suitable for.An example of polymer is exactly silicone or silicon-ketone composition.Leather sheath body 102, vacuum leather sheath 100, valve and container can be made by multiple plastics, comprising polystyrene, polypropylene, Merlon etc.
Although for the purpose of clear understanding, specifically described above invention, obviously can in the scope of accompanying Claim book, make certain variation and change.Therefore, it is exemplary that present embodiment should be considered to, rather than restrictive, and the present invention is not subjected to the restriction of above-mentioned details, but make change in can and being equal in the scope of the foregoing description.
People also will recognize, not necessarily be carried out according to described order by the rules that the operation in the above accompanying drawing is represented, all processes of being represented by these operations perhaps are not that enforcement is required for the present invention entirely.

Claims (25)

1. method that reduces the pressure in the enclosure space comprises:
The vacuum leather sheath is sealed to this enclosure space;
Reduce pressure in this enclosure space by operating this vacuum leather sheath;
Pressure in balanced this vacuum leather sheath equals the pressure in this enclosure space;
Make this vacuum leather sheath recessed flat.
2. method according to claim 1 is characterized in that, comprises that also the pressure in balanced this enclosure space equals external atmosphere pressure.
3. method according to claim 2 is characterized in that, it is to realize by the vacuum release (relief) valve that has vacuum indicator that balanced this enclosure space internal pressure equals external atmosphere pressure.
4. method according to claim 3 is characterized in that this vacuum indicator comprises sacculus, and the pressure that this sacculus becomes in recessed this enclosure space of flat expression is lower than external atmosphere pressure.
5. method according to claim 1 is characterized in that, comprises by operating the pressure that this vacuum leather sheath reduces in this enclosure space:
Expand this vacuum leather sheath, comprising:
Open internal check valve,
Close outer check valve,
Air is pumped to this vacuum leather sheath from this enclosure space;
Compress this vacuum leather sheath, comprising:
Substantially close this internal check valve,
Open this outer check valve,
Force air through flowing out this vacuum leather sheath by outer check valve.
6. method according to claim 5 is characterized in that, the desired pressure in reaching this enclosure space is carried out in the expansion of this vacuum leather sheath and compression repeatedly.
7. method according to claim 5 is characterized in that this internal check valve comprises primary sealing area and secondary sealing area, closes this internal check valve substantially and comprises the sealing fully that prevents between this primary sealing area and this secondary sealing area.
8. method according to claim 5 is characterized in that this internal check valve comprises primary sealing area and secondary sealing area, and at least one sealing surface in this primary sealing area and this secondary sealing area has balancing slit.
9. method according to claim 1 is characterized in that, the pressure in balanced this vacuum leather sheath equals pressure in this enclosure space and comprises that to make this vacuum leather sheath automatically recessed flat.
10. method according to claim 1, it is characterized in that, the pressure that pressure in balanced this vacuum leather sheath equals in this enclosure space comprises the equal pressure gas stream of generation from this vacuum leather sheath to this enclosure space, and this equal pressure gas stream is less than being gone into air-flow this vacuum leather sheath by pump drainage from this enclosure space when this vacuum leather sheath of operation.
11. a method that reduces the pressure in the enclosure space comprises:
The vacuum leather sheath is sealed to this enclosure space;
Reduce pressure in this enclosure space by operating this vacuum leather sheath, comprising:
Expand this vacuum leather sheath, comprising:
Open internal check valve, this internal check valve comprises primary sealing area and secondary sealing area, and when this primary sealing area and this secondary sealing area were in contact with one another, this primary sealing area and this secondary sealing area formed incomplete sealing,
Close outer check valve,
Air is pumped to this vacuum leather sheath from this enclosure space;
Compress this vacuum leather sheath, comprising:
Substantially close this internal check valve,
Open this outer check valve,
Force air through flowing out this vacuum leather sheath by outer check valve;
Pressure in balanced this vacuum leather sheath equals the pressure in this enclosure space, comprises allowing all to press air to flow into this enclosure space from this vacuum leather sheath;
Make this vacuum leather sheath recessed flat.
12. a vacuum leather sheath comprises:
Roof has the exhaust check valve that air is discharged from this vacuum leather sheath;
Diapire has internal check valve and equalizing valve, so that reduce the pressure of enclosure space, the pressure in balanced this vacuum leather sheath of this equalizing valve equals the pressure in this enclosure space to this internal check valve with this vacuum leather sheath of air suction;
Soft leather sheath body is connected on this roof and this diapire.
13. vacuum leather sheath according to claim 12 is characterized in that this roof has import, this import provides the inlet that enters this vacuum leather sheath.
14. vacuum leather sheath according to claim 12 is characterized in that this roof has vacuum release (relief) valve.
15. vacuum leather sheath according to claim 12, it is characterized in that, also comprise combined type vacuum release (relief) valve and vacuum indicator, this combined type vacuum release (relief) valve and vacuum indicator indicate the pressure in this enclosure space when to be lower than external atmosphere pressure, and the pressure in this combined type vacuum release (relief) valve and down balanced in working order this enclosure space of vacuum indicator equals external atmosphere pressure.
16., it is characterized in that this vacuum leather sheath is sealed to this enclosure space in dismountable mode according to claim 15 described vacuum leather sheaths.
17. vacuum leather sheath according to claim 12 is characterized in that this roof has operating parts.
18. vacuum leather sheath according to claim 12 is characterized in that, this internal check valve and this equalizing valve be combined in single in unidirectional/equalizing valve.
19. vacuum leather sheath according to claim 12 is characterized in that this internal check valve comprises primary sealing area and secondary sealing area, under closure state, this primary sealing area and this secondary sealing area form incomplete sealing.
20. vacuum leather sheath according to claim 12 is characterized in that this internal check valve comprises primary sealing area and secondary sealing area, at least one sealing surface in this primary sealing area and this secondary sealing area has balancing slit.
21. vacuum leather sheath according to claim 12 is characterized in that, also comprises sealing ring, but the sealing circle is sealed and matched with the seal receptacle groove on separating type and this diapire.
22. vacuum leather sheath according to claim 21 is characterized in that, sealing seat groove has at least one in interior protuberance and the male part, and protuberance can be sealed to the inner surface of sealing circle in this, and this male part can be sealed to the outer surface of sealing circle.
23. a device comprises:
Enclosure space;
By the vacuum leather sheath of envelope to this enclosure space, this vacuum leather sheath reduces the pressure in this enclosure space when being operated;
Combined type vacuum release (relief) valve and vacuum indicator, this combined type vacuum release (relief) valve and vacuum indicator indicate that the pressure in this enclosure space is suitable to be lower than external atmosphere pressure, and the pressure in this combined type vacuum release (relief) valve and down balanced in working order this enclosure space of vacuum indicator equals external atmosphere pressure.
24. device according to claim 23 is characterized in that, this combined type vacuum release (relief) valve and vacuum indicator comprise sacculus, and the pressure that this sacculus becomes in recessed this enclosure space of flat expression is lower than external atmosphere pressure.
25. device according to claim 23 is characterized in that, also comprises equalizing valve, the pressure in balanced this vacuum leather sheath of this equalizing valve equals the pressure in this enclosure space.
CNA2007101639972A 2006-10-27 2007-10-15 Method for reducing pressure of close space, vacuum bellows and device possessing vacuum bellow Pending CN101167593A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/588590 2006-10-27
US11/588,590 US20070104601A1 (en) 2005-11-10 2006-10-27 Vacuum bellows

Publications (1)

Publication Number Publication Date
CN101167593A true CN101167593A (en) 2008-04-30

Family

ID=39388456

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2007101639972A Pending CN101167593A (en) 2006-10-27 2007-10-15 Method for reducing pressure of close space, vacuum bellows and device possessing vacuum bellow

Country Status (1)

Country Link
CN (1) CN101167593A (en)

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Open date: 20080430