CN104071462B

CN104071462B - Vacuum tank, the lid of vacuum tank and vacuum tank combination

Info

Publication number: CN104071462B
Application number: CN201310109549.XA
Authority: CN
Inventors: 张佩君; 陈信育
Original assignee: 3m New Asset Co
Current assignee: 3m New Asset Co
Priority date: 2013-03-29
Filing date: 2013-03-29
Publication date: 2018-08-10
Anticipated expiration: 2033-03-29
Also published as: CN104071462A; WO2014160608A1

Abstract

The present invention relates to the combinations of a kind of vacuum tank, its lid and vacuum tank.Vacuum tank combination includes vacuum tank and extraction tools.Vacuum tank includes box body and lid, its common definition goes out accommodating space, box body has upper limb, lid includes the first, second, third part and air valve, first part, which holds, receives box body upper limb, second part can bear external force and generate deformation and reply original shape when external force removes, and Part III surrounds second part with first part and is equipped with air valve jointly.Extraction tools include opening, are matched with lid Part III, the thickness T2 near the Part III of lid at second part is than the thickness T1 (T2/T1) at Part III near second part at least more than equal to 1.1.And the gas of accommodating space is bestowed second part by external force and/or is driven air valve by extraction tools and accommodating space is discharged from Part III.

Description

Vacuum tank, the lid of vacuum tank and vacuum tank combination

Technical field

The present invention relates to the combination of a kind of vacuum tank, its lid and vacuum tank, more particularly to one kind are selectively permeable Pressing and/or extraction tools make accommodating space in the vacuum tank of negative pressure, the lid of the vacuum tank and vacuum tank combination.

Background technology

There is vacuum tank that can be exhausted by additional tool or object at present and interior space is made to be in negative pressure, with Preserve article, such as following patents：EP1714910A1、CN2406951Y、US20120006853A1、US7246555B2、 CN200620138824.6 and US5651470.The air extraction structure of aforementioned vacuum container is more complex, and is operated with additional means, example Such as：CN2406951Y, US7246555B2, CN200620138824.6 patent.If user on hand without the tool, just without Method makes vacuum tank reach negative pressure state.

To solve the above-mentioned problems, also have through pressing and container is made to be in the technology of negative pressure, such as disclosed in following patents Technical solution：CN2815939Y、CN2293200Y、CN101125598A、CN2322924Y、CN2255958Y、 CN1429748A.But the gas that can be discharged through Manual press is limited, and in other words, these containers can not reach ideal negative pressure State.

Invention content

The present invention provides a kind of vacuum tank, the lid of the vacuum tank and vacuum tank combination, the lid of the vacuum tank The structure of body can have both pressing exhaust and with extraction tools degassing function, to overcome existing vacuum tank can not can be according to for user The shortcomings that demand selection is through pressing and/or the gas of the accommodating space of vacuum tank being sucked out using extraction tools, and by The structure design of lid takes into account the operation ease and cover body structure intensity of pressing.

One embodiment of the present of invention provides a kind of vacuum tank, and vacuum tank includes box body and lid, and box body has upper Edge；Lid goes out accommodating space with box body common definition, and includes：First part, second part, Part III and air valve, first Part holds the upper limb for receiving box body, and second part can bear external force and generate deformation, and original shape is replied when external force removes, third portion Divide and surround second part jointly with first part, and is equipped with air valve；Wherein, the thickness near the second part of lid at Part III Degree is T1, and the thickness near Part III at second part is T2, T2/T1 at least more than equal to 1.1, the gas of accommodating space by External force bestows second part and/or Part III and accommodating space is discharged, to make accommodating space be in negative pressure.

In one embodiment, the second part of lid is tilted by first part towards Part III upwards, and Part III An obtuse angle is pressed from both sides with second part.

In one embodiment, the second part thickness of lid from first part to Part III direction decrescence.

In one embodiment, the Part III of lid further includes perforation, and air valve is set to perforation, and the thickness of Part III It spends from second part to perforation direction decrescence.

In one embodiment, the Part III of lid further includes air hole, air valve include convex button, the first catch, cylinder, Second catch and gas channel, cylinder through perforation and make air valve be set relative to Part III with the first catch and the second catch It sets, air hole is covered by the first catch.

In one embodiment, the first part of lid further includes holding section, extension and articulated section, and holding section has ditch Slot corresponds to the upper limb of box body, and extension extends outwardly from holding section and there is fastener, articulated section to connect holding section and extension, And there is an at least holes.

In one embodiment, lid further includes a washer, is placed in the groove of the holding section of first part.

In one embodiment, the holding section of the first part of lid further includes a notch, and washer is exposed by barbed portion.

In one embodiment, the fastener of the extension of the first part of lid includes first segment portion and second segment portion, It is substantially perpendicular to each other.

In one embodiment, box body includes fin, is set to the side wall of box body and coordinates with the fastener of lid, and has There is Ka Gou to hold the second segment portion for the fastener for receiving lid.

Another embodiment of the present invention provides a kind of vacuum tank combination, can be vented and be in negative pressure, and includes that vacuum is held Device and extraction tools.Vacuum tank includes box body and lid, and there is box body upper limb, lid to go out to house sky with box body common definition Between, and include the first, second, third part and air valve, first part holds the upper limb for receiving box body, second part can bear external force and It generates deformation and replys original shape when external force removes, Part III surrounds second part jointly with first part, and is equipped with air valve； And extraction tools include an opening, are substantially matched with the Part III of lid, wherein the near the second part of lid Thickness at three parts is T1, and the thickness near Part III at second part is T2, and T2/T1 is housed at least more than equal to 1.1 The gas in space is bestowed second part by external force and/or is driven air valve by extraction tools and accommodating space is discharged from Part III, It is in negative pressure to make accommodating space.

Another embodiment of the present invention provides a kind of lid, for sealing a box body, and include first part, second Divide, Part III and air valve, second part can bear external force and generate deformation, and reply original shape when external force removes, third portion Divide and surrounds second part with first part, and air valve is set to Part III, the wherein thickness near second part at Part III It is T1 to spend, and the thickness near Part III at second part is T2, and T2/T1 is at least more than equal to 1.1.

Description of the drawings

Fig. 1 is the explosive view of an embodiment of vacuum tank of the present invention combination.

Fig. 2 is the a-a ' sectional views of box body shown in FIG. 1.

Fig. 3 is the a-a ' sectional views of lid shown in FIG. 1.

Fig. 3 a are second, third part detail structure chart of lid shown in Fig. 3.

Fig. 4 is the a-a ' sectional views of air valve shown in FIG. 1.

Fig. 5 is the diagrammatic cross-section of vacuum tank of the present invention combination.

Fig. 6 is air valve action schematic diagram of the vacuum tank of the present invention when pumping.

Specific implementation mode

Referring to Fig. 1, its explosive view for an embodiment of vacuum tank of the present invention combination.As shown in Figure 1, vacuum tank Combination 1 includes vacuum tank 10 and extraction tools 13.Vacuum tank 10 includes box body 11 and lid 12, and box body 11 has upper limb 111, lid 12 and 11 common definition of box body go out an accommodating space 14, and lid 12 include first part 121, second part 122, Part III 123 and air valve 124.First part 121 can hold the upper limb 111 for receiving box body 11, and second part 122 can bear an external force F1 and generate deformation and reply original shape when external force removes, Part III 123 and first part 121 surround second part jointly 122, and air valve 124 is set to Part III 123.Extraction tools 13 include an opening 130, the Part III with lid 12 123 substantially match.

It is the a-a ' sectional views of box body shown in FIG. 1 to please refer to Fig.1 and coordinate Fig. 2, wherein Fig. 2.Box body 11 has bottom surface 112 and the side wall 113 that is extended by bottom surface 112, the upper limb 111 of box body 11 be side wall 113 connect with bottom surface 112 it is opposite Edge.In the present embodiment, box body 11 is in rectangular configuration, and the upper limb 111 of box body 11 also can be rectangular.It will be understood, however, that box The shape of body 11 is not particularly limited.I.e. box body 11 of the invention can be any shape for having and containing function, such as cylinder Shape, triangle cylindricality etc., and the box opening shape that 112 shape of bottom surface is defined with upper limb 111 can be inconsistent.In addition, box Body 11 includes still fin 114, is to be set to side wall 113 at upper limb 111, substantially by side wall 113 along parallel bottom surface 112 Direction is extended and its free end is bent towards 112 direction of bottom surface, to form a card ditch 115.In this present embodiment, fin 114 Continuously around the side wall 113 of box body 11, but in other embodiments, fin 114 also can discontinuously be set to side wall 113 On.

It is respectively the a-a ' of lid and its air valve shown in FIG. 1 to please refer to Fig.1 and coordinate Fig. 3 and Fig. 4, wherein Fig. 3 and Fig. 4 Sectional view.Lid 12 can completely cover the box opening of box body 11, to go out to house the appearance of article with 11 common definition of box body 14 between emptying.In the present embodiment, box body 11 can be all made with lid 12 with plastic material, such as polypropylene (Polypropylene, PP), but box body 11 and the material of lid 12 are not limited.Lid 12 includes first part 121, the Two parts 122, Part III 123 and air valve 124, first part 121 to Part III 123 are sequentially inside by the outer rim of lid 12 Distribution.In the present embodiment, the first of lid 12 provides different functions to Part III 121-123 respectively, and arbitrary two-phase Adjacent part substantially can be using the line of the apparent turning point in upper and lower surface of lid 12 as boundary.However, it should be understood that lid 12 each sections are not limited to boundary position above-mentioned.

The first part 121 of lid 12 mainly contacts and is maintained as a rigid border shape of lid 12 with box body 11 And structural strength.The first part 121 of lid 12 further includes holding section 1211, extension 1213 and articulated section 1215.Holding section 1211 have groove 1212, correspond to the upper limb 111 of box body 11, make lid 12 that can hold by groove 1212 and receive the upper of box body 11 Edge 111 and the accommodating space 14 (as shown in Figure 5) for defining items sheltering.In addition, holding section 1211 has sufficiently rigid material Material, avoided with supporting lid 12 lid 12 when accommodating space 14 is in negative pressure deformation effect lid 12 and box body 11 it is closely sealed. In some embodiments, lid 12 may also include washer 125, such as：Flexible hollow rubber circle, but not limited to this. And washer 125 can hold in the groove 1212 for the holding section 1211 for closing at first part 121；Also, holding section 1211 includes one scarce Mouthfuls 1214,1212 wall surface setting, keeps washer 125 partially exposed by notch 1214 along groove, with convenient for users to Washer 125 is taken out from groove 1212.Extension 1213 is extended outwardly by holding section 1211, and in the present embodiment, lid 12 is Rectangle and include four extensions 1213, is extended by four sides of lid 12 respectively, to form the wings of four protrusions, however The number and set-up mode of extension 1213 are not limited thereto.For example：In certain embodiments, the lid 12 of rectangle Can only extension be equipped in opposite both sides.Extension 1213 has fastener 1216, and fastener 1216 includes first segment portion 1216a It is connected to extension 1213 with second segment portion 1216b, first segment portion 1216a, and second segment portion 1216b is a free end and basic On perpendicular to first segment portion 1216a.Articulated section 1215 is between holding section 1211 and extension 1213, to connect holding section 1211 with extension 1213, and the thickness of articulated section 1215 be less than extension 1213 thickness, so that extension 1213 is can pass through pivot Socket part 1215 is pivoted relative to holding section 1211.Also, articulated section 1215 has holes 1217, in the present embodiment, correspond to every The articulated section 1215 of one extension 1213 has an at least holes 1217, is convenient for extension with the setting by holes 1217 1213 rotate relative to holding section 1211.

Referring to Fig. 3,122 boundary of second part of lid 12 has between first part 121 and Part III 123 Enough flexibility, and temporary deformation can be generated when bearing an external force F1, and original shape is replied when external force F1 removes disappearance, Using the press section as lid 12.Second part 122 in the present embodiment relative to lid 12 ratio than first part 121 and Part III 123 is big relative to the ratio of lid 12, and second part 122 by first part 121 towards the direction of Part III 123 It tilts upwards.In other words, second part 122 is relatively higher than close to the part at the center of lid 12 close to the portion at 12 edge of lid Point.In addition, in the present embodiment, the thickness near second part 122 at Part III 123 is T1, " neighbour " described herein Mean " close ", " nearby ", " adjoining ".In other words, second part 122 is that T1 (such as schemes close to the thickness of Part III 123 Shown in 3a).In addition, in the present embodiment, the thickness of the second part 122 of lid 12 can be from first part 121 toward Part III 123 directions are a little decrescence.In other words, second part 122 is gradually thinning towards center position by 12 outer rim of lid, preferable to provide Press feel.However it should be appreciated that the thickness of second part 122 there is no restriction, that is, meet can be generated in response to external force F1 Temporary deformation and when external force F1 is removed reply original shape and be available for users to pressing person.

Referring again to Fig. 3, the Part III 123 of lid 12 is located substantially at the center of lid 12, total with first part 121 With second part 122 is surrounded, air valve can be set to provide the second part 122 of enough rigid support lids 12 and provide one 124 region.In the present embodiment, Part III 123 includes perforation 1231 and air hole 1232, and perforation 1231 is located substantially on The center of Part III 123, and air hole 1232 is set to around perforation 1231.The quantity of the air hole 1232 of the present embodiment It it is two, but not limited to this.In addition, Part III 123 and second part 122 press from both sides an obtuse angle A, and Part III 123 is by the Two parts 122 are tilted down towards 1231 directions of perforation, that is, Part III 123 is relatively lower than close to the one end at 12 center of lid and leans on The one end at nearly 12 edge of lid, it is in a bowl-type to make Part III 123 substantially.Thickness near Part III 123 at second part 122 Degree is T2, and " neighbour " described herein means " close ", " nearby ", " adjoining ".In other words, near second part 122 123 thickness of Part III be T2 (as shown in Figure 3a), and the thickness of Part III 123 is optionally by second part 122 A little decrescence toward 1231 directions of perforation, that is, gradually thinning towards center position by 12 outer rim of lid.In the present embodiment, Part III 123 adjacent to second part 122 thickness T2 and second part 122 adjacent to the thickness T1 of Part III 123 ratio at least more than Equal to 1.1, such as：The ratio of T2/T1 can be 1.10,1.15,1.20,1.25,1.30,1.35,1.39,1.40,1.45, 1.50,1.55,1.60, but be not limited with above-mentioned numerical value.

It includes convex button 1241, the first catch 1242, cylinder 1243, the second catch to please refer to Fig.1 and coordinate Fig. 4, air valve 124 1244 and gas channel 1245.First catch 1242 is substantially in umbrella-shaped structure, has flexible and can generate deformation, cylinder 1243 between the first catch 1242 and the second catch 1244, and its height is substantially close with the Part III of lid 12 123 The thickness on the periphery of perforation 1231 is consistent.And second catch 1244 of the present embodiment can be prolonged to be multiple by cylinder 1243 is radial The convex block stretched, to which air valve 124 to be relatively arranged on to the of lid 12 by the first catch 1242 and the second catch 1244 Three parts 123 (as shown in Figure 5).The first catch is then extended to by the second catch 1244, cylinder 1243 as gas channel 1245 1242 lower edge, but it is not extended to 1242 edge of the first catch.Thus when air valve 124 is set to the Part III of lid 12 When 123 perforation 1231, gas channel 1245 can only be connected to accommodating space 14 but can not be connected to outside.In the present embodiment In, air valve 124 can be made by flexible material, such as rubber, and but not limited to this.

Referring to Fig. 5, it is the diagrammatic cross-section of vacuum tank of the present invention combination.Such as Fig. 5 simultaneously coordinates shown in Fig. 2-4, lid The cylinder 1243 of the air valve 124 of body 12 runs through the perforation 1231 of Part III 123, and by the first catch 1242 and the second catch 1244 make air valve 124 may be disposed at the Part III 123 of lid 12, and the air hole 1232 of Part III 123 is then by air valve 124 The first catch 1242 covered.When lid 12 is covered in box body 11, the upper limb 111 of box body 11, which can correspond to, is placed in lid 12 First part 121 groove 1212 in, and extension 1213 can be with articulated section 1215 for axis, towards 113 axis of side wall of box body 11 Turn, to which the fastener 1216 of extension 1213 is close to the fin 114 of box body 11, and with the second part 1216b of fastener 1216 It is snapped in the card ditch 115 of the fin 114 of box body 11, keeps lid 12 and box body 11 closely sealed.In addition, in certain embodiments, by Further include washer 125 in lid 12, therefore the adaptation between lid 12 and box body 11 can be promoted by washer 125.

Referring again to Fig. 5 and coordinate Fig. 1, extraction tools 13 include first sleeve 131, liner 132,133, second sets of rod piece Pipe 134 and handle 135, wherein the second casing 134 is hollow pipe fitting, inside can contain liner 132 and rod piece 133, rod piece 133 Side wall can define gap 136 with the internal face of the second casing 134, and handle 135 may connect to rod piece 133 and part is opposite It is exposed in one end that the second casing 134 is connect with first sleeve 131；First sleeve 131 is also hollow pipe fitting, and with soft materials It is preferred, can be combined with the second casing 134.In addition, an opening 130 and lid 12 of the extraction tools 13 at first sleeve 131 Part III 123 match, also that is, first sleeve 131 is in the section shape in vertical central direction and the third portion of lid 12 Divide 123 shapes to be substantially consistent and the Part III 123 of first sleeve 131 and lid 12 made to form continuous continual contact surface, It is overlying on the air valve 124 being arranged on Part III 123 so as to 130 sets with opening.

Referring again to Fig. 5 and coordinate Fig. 6, wherein Fig. 6 is air valve illustrative view of the vacuum tank of the present invention when exhaust. When user's selection makes vacuum tank 10 be in negative pressure in a manual manner, user can apply an external force F1 in second of lid 12 Points 122, that is, press second part 122 towards 112 direction of bottom surface of box body 11 so that gas in accommodating space 14 can be by It compresses and slightly jacks up the first catch 1242 via the gas channel of air valve 124 1245 and disengage (such as Fig. 6 void from accommodating space 14 Shown in line arrow)；When external force F1 disappears, the first catch 1242 resiles and blocks gas channel 1245 and accommodating space 14 External connection.Therefore the gas outside accommodating space 14 just cannot be introduced into accommodating space 14, to which accommodating space 14 can be in negative pressure. Since the second part 122 of lid 12 is surrounded by first, Part III 121,123, first part 121 has enough rigidity Material, and Part III 123 close to second part 122 thickness T2 substantially than second part 122 close to Part III 123 Thickness T1 is thickness.Therefore Part III 123 have enough structural strengths, except can Auxiliary support second part 122, also can avoid User causes the deformation of Part III 123 when pressing second part 122 and makes the opening 130 of extraction tools 13 can not be with lid The Part III 123 of body 12 coordinates.

Referring again to Fig. 5 and coordinate Fig. 6, when user's selection is exhausted accommodating space 14 with extraction tools 13, Since the opening 130 of extraction tools 13 is substantially matched with the Part III of lid 12 123, that is, the first of extraction tools 13 Casing 131 can be socketed on Part III 123 and the 130 covering air valves 124 that are open, thus when user pulls bar by handle 135 Part 133 and when bestowing the external force F2 of a pull with extraction tools 13, rod piece 133 is mobile towards the direction far from lid 12 and makes liner 132 are resisted against 1331 lower edge of ditch of rod piece 133.Thus between the second casing 134, first sleeve 131, rod piece 133 and lid 12 Space pressure lower and the first catch 1242 of air valve 124 can be driven towards the direction deformation far from the second catch 1244, therefore Gas in accommodating space 14 can be sucked out by gas channel 1245 (as shown in Fig. 6 dotted arrows).When rod piece 133 is towards lid When 12 directions are moved, 1331 upper limbs of ditch that liner 132 is resisted against rod piece 133, gas to be drawn out can by rod piece 133 with Gap between liner 132 is discharged through the gap 136 of extraction tools 13；At this point, external force F2 disappears, the first catch of air valve 124 1242 will resile and obstruct gas channel 1245 and external connection and cover air hole 1232, thus extraneous gas without Method is back in accommodating space 14, perishable to be conducive to preserve to ensure that the accommodating space 14 of vacuum tank 10 is in negative pressure Object (such as food).In addition, by external force F1 or F2 is provided repeatedly, the reduced pressure of accommodating space 14 can be also promoted.And by Enough rigid support second parts 122 can be provided in the first part 121 of lid 12, Part III 123 also can Auxiliary support Second part 122, and have the design of thickness difference between Part III 123 and second part 122.Accommodating space 14 thus can be prevented It causes Part III 123 to deform when in negative pressure and influences the uses of extraction tools 13.

And when the negative pressure in user's accommodating space 14 to be destroyed makes the lid 12 of vacuum tank 10 relative to box body 11 When unlatching, user can slightly pull-up air valve 124 convex button 1241, the first catch 1242 just makes gas channel therewith rising 1245 are connected to outside, and 1232 opposing open of air hole, thus external gas can enter accommodating space 14, make accommodating space Pressure inside 14 and external balance, so as to opening cover 12.

Therefore, vacuum tank of the invention is available for users to selection to press and/or so that vacuum is held to reach through tool The accommodating space of device reaches the purpose in negative pressure.In addition, the present invention is also by the design of lid to take into account pressing function and lid Structural strength causes not pressing or extraction tools can not be made closely sealed with lid to avoid lid from deforming.

Above description is a preferred embodiment of the present invention, but the present invention is not limited with above-described embodiment.For example：Very Empty container can be the structure other than rectangle；In addition, the second part of the lid of vacuum tank can be equal thicknesses, in other words, the The thickness of two parts is all uniform thickness from neighbouring first part to neighbouring Part III, and the thickness of Part III also can be equalization Thickness, that is, Part III thickness at second part to being all impartial at neighbouring perforation；Again in other embodiments, lid The second part of body can be non-inclined.

Described above to illustrate rather than to limit the present invention, protection scope of the present invention is by appended claims It is defined.Equivalent changes and modifications made by all claims under this invention, should all belong to protection scope of the present invention.

Claims

1. a kind of vacuum tank comprising：

One box body, the box body have a upper limb；And

One lid goes out an accommodating space with the box body common definition, and includes：

One first part holds the upper limb for receiving the box body；

One second part can bear external force and generate deformation, and reply original shape when external force removes；

One Part III surrounds the second part with the first part, and is equipped with an air valve jointly；

Wherein, the thickness near the second part of the lid at the Part III is T1, near the Part III Thickness at the second part is T2, and for T2/T1 at least more than equal to 1.1, the gas of the accommodating space bestows institute by external force It states second part and/or the Part III and the accommodating space is discharged, to make the accommodating space be in negative pressure.

2. vacuum tank as described in claim 1, wherein the second part of the lid by the first part towards institute It states Part III to tilt upwards, and the Part III presss from both sides an obtuse angle with the second part.

3. vacuum tank as described in claim 1, wherein the second part thickness of the lid is by the first part Decrescence to the Part III direction.

4. vacuum tank as described in claim 1, wherein the Part III of the lid further includes a perforation, the gas Valve is set to the perforation, and the thickness of the Part III from the second part to the perforation direction decrescence.

5. vacuum tank as claimed in claim 4, wherein the Part III of the lid further includes an air hole, it is described Air valve includes a convex button, one first catch, a cylinder, one second catch and a gas channel, and the cylinder runs through the perforation And so that the air valve is arranged relative to the Part III with first catch and second catch, the air hole is by institute The first catch is stated to be covered.

6. vacuum tank as described in claim 1, wherein the first part of the lid further includes：

There is a groove, the groove to correspond to the upper limb of the box body for one holding section；

One extension extends outwardly from the holding section and has a fastener；And

One articulated section connects the holding section and the extension, and has an at least holes.

7. vacuum tank as claimed in claim 6 is placed in the first part wherein the lid further includes a washer The holding section the groove in.

8. vacuum tank as claimed in claim 7, wherein the holding section of the first part of the lid further includes One notch, the washer are exposed by the barbed portion.

9. vacuum tank as claimed in claim 6, wherein the extension of the first part of the lid is described Fastener includes a first segment portion and a second segment portion, is substantially perpendicular to each other.

10. vacuum tank as claimed in claim 9 is set to the one of the box body wherein the box body includes a fin The fastener of side wall, the fin and the lid coordinates, and holds the institute for the fastener for receiving the lid with a Ka Gou State second segment portion.

11. a kind of vacuum tank combination, can be vented and be in negative pressure and include：

One vacuum tank comprising：

One box body, the box body have a upper limb；

One first part holds the upper limb for receiving the box body；

One second part can bear external force and generate deformation and reply original shape when external force removes；

One Part III surrounds the second part with the first part, and is equipped with an air valve jointly；And

One extraction tools a comprising opening is substantially matched with the Part III of the lid；

Wherein, the thickness near the second part of the lid at the Part III is T1, near the Part III Thickness at the second part is T2, and for T2/T1 at least more than equal to 1.1, the gas of the accommodating space bestows institute by external force It states second part and/or drives the air valve by the extraction tools and the accommodating space is discharged from the Part III, make The accommodating space is in negative pressure.

12. vacuum tank combination as claimed in claim 11, wherein the second part of the lid is by described first Divide and tilted upwards towards the Part III, and an obtuse angle is pressed from both sides with the second part in the Part III system.

13. vacuum tank as claimed in claim 11 combination, wherein the second part thickness of the lid is by described the A part to the Part III direction decrescence.

14. vacuum tank combination as claimed in claim 11, wherein the Part III of the lid further includes a perforation, The air valve is set to the perforation, and the thickness of the Part III from the second part to the perforation direction decrescence.

15. vacuum tank combination as claimed in claim 14, wherein the Part III of the lid further includes one ventilative Hole, the air valve include a convex button, one first catch, a cylinder, one second catch and a gas channel, and the cylinder runs through institute It states and perforates and so that the air valve is arranged relative to the Part III with first catch and second catch, it is described ventilative Hole is covered by first catch.

16. vacuum tank combination as claimed in claim 11, wherein the first part of the lid further includes：

17. vacuum tank as claimed in claim 16 combination, wherein the lid further includes a washer, it is placed in described the In the groove of the holding section of a part.

18. vacuum tank combination as claimed in claim 17, wherein the holding section of the first part of the lid Further include a notch, the washer is exposed by the barbed portion.

19. vacuum tank combination as claimed in claim 16, wherein the fastener of the extension of the lid includes One first segment portion and a second segment portion, are substantially perpendicular to each other.

20. vacuum tank combination as claimed in claim 19 is set to the box body wherein the box body includes a fin One side wall, the fastener of the fin and the lid coordinates, and holds the fastener for receiving the lid with a Ka Gou The second segment portion.

21. a kind of lid to seal a box body, and includes：

One first part；

One second part can bear external force and generate deformation, and reply original shape when external force removes；And

One Part III surrounds the second part with the first part, and is equipped with an air valve；

Wherein, the thickness near the second part at the Part III is T1, described second near the Part III Respectively thickness be T2, T2/T1 is at least more than equal to 1.1.

22. lid as claimed in claim 21, wherein the second part of the lid by the first part towards described Part III tilts upwards, and the Part III presss from both sides an obtuse angle with the second part.

23. lid as claimed in claim 21, wherein the second part thickness of the lid from the first part to The Part III direction is decrescence.

24. lid as claimed in claim 21, wherein the Part III of the lid further includes a perforation, the air valve Be set to the perforation, and the thickness of the Part III from the second part to the perforation direction decrescence.

25. lid as claimed in claim 24, wherein the Part III of the lid further includes an air hole, the gas Valve includes a convex button, one first catch, a cylinder, one second catch and a gas channel, and the perforation is run through in the cylinder system And so that the air valve is arranged relative to the Part III with first catch and second catch, the air hole by First catch is covered.

26. lid as claimed in claim 21, wherein the first part of the lid further includes：

One holding section has a groove；

27. lid as claimed in claim 26 is placed in the first part wherein the lid further includes a washer In the groove of the holding section.

28. lid as claimed in claim 27, wherein the holding section of the first part of the lid further includes one Notch, the washer are exposed by the barbed portion.