CN105266654A - Vacuum heat preservation container bottom sealing structure and sealing method thereof - Google Patents
Vacuum heat preservation container bottom sealing structure and sealing method thereof Download PDFInfo
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- CN105266654A CN105266654A CN201510573921.1A CN201510573921A CN105266654A CN 105266654 A CN105266654 A CN 105266654A CN 201510573921 A CN201510573921 A CN 201510573921A CN 105266654 A CN105266654 A CN 105266654A
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- vacuum heat
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Abstract
The invention discloses a vacuum heat preservation container bottom sealing structure and a sealing method thereof. The sealing structure comprises a vacuum heat preservation container outer tube, a vacuum hole, and a ladder groove, wherein the bottom of the vacuum heat preservation container outer tube is concave axially and inwardly to form the ladder groove; the vacuum hole is arranged at the bottom of the vacuum heat preservation container outer tube and located at the top part of the ladder groove; the ladder groove comprises a first round groove and a second round groove sequentially from top to bottom, the first round groove is internally filled with a sealing material for sealing and blocking the vacuum hole, the second round groove is internally welded with a round sealing piece for protecting the sealing material, the top diameter of the second round groove is smaller than the bottom diameter, and the diameter of the round sealing piece is smaller than the bottom diameter of the second round groove; and the edge part of the sealing piece fills a side wall gap formed between the side wall of the second round groove and the side wall of the sealing piece in a melted mode. The round sealing piece is fixed in the groove by adopting a laser welding mode, the gap is left between the round sealing piece and the sealing material, and the sealing material can be protected when the bottom of the heat preservation container outer tube is subjected to impact.
Description
Technical field
The present invention relates to metal thermal insulation container technical field, particularly relate to sealing structure and sealing method thereof bottom a kind of vacuum heat-insulating container.
Background technology
Usually used as metal thermal insulation container, have for taking out air in inside and outside interlayer and reserved aperture bottom it, we are referred to as vacuum cave, in vacuum process, melted in high-temperature vacuum process by the envelope material being positioned over aperture limit in advance and block vacuum cave, thus reach the effect of vacuum layer sealing.Envelope material as fruit product is directly outside exposed, not only unsightly, and product use process in be subject to the effect of external force under, very easily break, cause the blow-by of vacuum cave, air enters interlayer, causes product not to be incubated.
For avoiding this situation to occur, product usually uses sealing sheet when designing or installs the mode of base additional, plays the object of tamper seal material, makes product more attractive and durable simultaneously.
At present, the product on market uses two class modes to design usually, and a class is the form with sealing sheet, as shown in Figure 1; One class is the mode with installing base additional, as shown in Figure 2.Wherein, Fig. 1 adopts resin sheet 1a to utilize mode that is gluing or hot melt to be secured in below product bottom vacuum cave; Fig. 2 adopts plastic bottom or metal bottom 1b, bottom the fit system press-in product of the body interference of utilization and product, forms certain spatial joint clearance to play the effect of protection in vacuum cave and bottom.
Adopt the shortcoming of resin enclosure sheet 1a to be, the mode sticked with glue, glue has the time of certain ageing failure, can have influence on the service life of product, and the cost of glue is relatively high simultaneously.Resin itself also can in use also can agingly become fragile.Adopt the shortcoming of the mode of hot melt to be, the fusion character of plastic cement and metal itself is not high, under some specific conditions, as high temperature, very easily comes off under high humidity, thus does not have the object of real protection, thus has influence on the service life of product.
Adopt the chimeric press mode of plastic cement or metab 1b, its shortcoming is, due to the contact surface that chimeric needs are certain, therefore the appearance design for product has certain limitation, the fit system of interference due to what adopt in addition, product requires that dimensional accuracy is high in process of production, and materials'use is more, and production cost is higher.The base that wherein plastic cement is made can expand owing to being heated, so easily come off in the condition of high temperature.
Summary of the invention
For the problems referred to above, the object of this invention is to provide sealing structure and sealing method thereof bottom a kind of vacuum heat-insulating container, solve the caducous problem of existing sealing structure.
In order to achieve the above object, the present invention adopts following technical scheme:
Sealing structure bottom a kind of vacuum heat-insulating container, comprising:
One vacuum heat-insulating container outer tube, bottom it, axial indent is formed with a step trough; With
One vacuum cave, is opened in the bottom of described vacuum heat-insulating container outer tube and is positioned at the top of described step trough;
Wherein, described step trough comprises the first circular groove and the second circular groove from top to bottom successively, is filled with the envelope material in vacuum cave described in shutoff in described first circular groove, and, be welded with the circular sealing sheet of the described envelope material of protection in described second circular groove;
The top diameter of described second circular groove is less than its base diameter, and the diameter of described circular sealing sheet is less than the base diameter of described second circular groove, and the thickness of described circular sealing sheet is less than the degree of depth of described second circular groove;
The edge melting of described sealing sheet is filled in the sidewall spacers that formed between described second circular groove sidewall and described sealing sheet sidewall.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, leaves height gap between described envelope material and described sealing sheet.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, the height of described height gap is 0.01mm to 1mm.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, described sealing sheet is made up of identical material with described cool-bag outer tube.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, described sealing sheet material is metal.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, described sealing sheet material is stainless steel.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein, the material of described envelope material is glass.
Sealing structure bottom above-mentioned vacuum heat-insulating container, wherein: be filled with envelope material in described vacuum cave.
A kind of sealing method bottom vacuum heat-insulating container, comprise the sealing structure as described in claim 1 to 8 any one, its step is as follows,
Step one, described vacuum heat-insulating container is positioned in vacuum environment;
Step 2, described envelope material to be positioned in described first circular groove, and described envelope material is heated, described envelope material is melted and flow vacuum cave described in shutoff and described first circular groove;
Step 3, after the cooling of described envelope material, described vacuum heat-insulating container is taken out vacuum environment;
Step 4, described sealing sheet to be positioned in described groove, and to be welded and fixed.
Sealing method bottom above-mentioned vacuum heat-insulating container, wherein, described in be welded as laser weld.
1, the sealing sheet that employing of the present invention is identical with cool-bag material, and adopt laser weld to be fixed, weld seam natural beauty, long service life, is not easy to come off;
2, leave gap between the circular sealing sheet of the present invention and envelope material, clashed at cool-bag outer pipe bottom, can tamper seal material.
Accompanying drawing explanation
Fig. 1 is that existing employing resin sheet utilizes mode that is gluing or hot melt to be fixed on structural representation in cool-bag bottom vacuum cave;
Fig. 2 is that existing employing plastic cement or metal bottom utilization are pressed into the structural representation bottom cool-bag with the fit system of the body interference of cool-bag;
Fig. 3 is the schematic diagram of sealing structure bottom vacuum heat-insulating container of the present invention;
Fig. 4 is the structural representation of the circular sealing sheet before the present invention welds.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
As shown in Figure 3 and Figure 4, sealing structure bottom a kind of vacuum heat-insulating container, comprising: a vacuum heat-insulating container outer tube 100, and bottom it, axial indent is formed with a step trough; One vacuum cave 2, is opened in the bottom of vacuum heat-insulating container outer tube 100 and is positioned at the top of step trough, running through bottom vacuum heat-insulating container outer tube 100, in order to take out the air inside and outside vacuum heat-insulating container in interlayer; Wherein, step trough comprises the envelope material 111 being filled with shutoff vacuum cave 2 in the first circular groove 11 and the second circular groove 12, first circular groove 11 from top to bottom successively, and, be welded with the circular sealing sheet 121 of anti-book jacket material 111 in the second circular groove 12; The top diameter of the second circular groove 12 is less than its base diameter, and the diameter of circular sealing sheet 121 is less than the base diameter of the second circular groove 12, and the thickness of circular sealing sheet 121 is less than the degree of depth of the second circular groove 12; The edge melting of circular sealing sheet 121 is filled in the sidewall spacers 4 that formed between the second circular groove 12 sidewall and circular sealing sheet 121 sidewall.
In technique scheme, envelope material 111 material selection glass material, adopts the mode of hot melt, is sealed in vacuum cave 2, circular sealing sheet 121 adopts the material identical with cool-bag, preferred stainless steel, is fixed in the second circular groove 12, compared to existing employing resin enclosure sheet by the mode of welding, stickup or hot melt are fixed on bottom cool-bag, or compared to existing clinching plastic bottom or metal bottom, more firmly attractive in appearance, longer service life, the top dimension of each ladder of step trough is less than bottom size, the cross section of step trough is made to be trapezoidal, in acute angle between the side of the first circular groove 11 and the second circular groove 12 and base, when circular sealing sheet 121 puts into the second circular groove 12, the edge of circular sealing sheet 121 and the second circular groove 12 is a sidewall spacers 4, when welding, sealing sheet 121 edge fusing and filled sidewall gap 4 in, make sealing sheet 121 edge and the laminating of the second circular groove 12 edge, finally make bottom vacuum heat-insulating container smooth attractive in appearance, simultaneously, due to sealing smooth bottom vacuum heat-insulating container, therefore, even if vacuum cave 2 place leaks gas, also vacuum error rate can be reduced to a great extent.
In one preferably embodiment, leave height gap 3 between envelope material 111 and sealing sheet 121, the height in preferred heights gap 3 is 0.01mm to 1mm, when cool-bag is impacted, due to the existence of height gap 3, impulsive force can not impact envelope material 111, thus ensure that vacuum effectiveness.
In one preferably embodiment, be provided with envelope material 111 in vacuum cave 2, this envelope material 111 by flowing in vacuum cave 2 when hot melt, can make vacuum cave 2 thoroughly block, finally making the better heat preservation of vacuum heat-insulating container.
Sealing structure bottom above-mentioned vacuum heat-insulating container, also possesses following only encapsulation method:
First, vacuum heat-insulating container is placed in vacuum environment, make to keep vacuum between the inner and outer pipes of cool-bag, then envelope material 111 is placed in the first circular groove 11, and heat, envelope material 111 is melted, envelope material 111 after fusing can flow in vacuum cave 2, after the cooling of envelope material 111, can thoroughly shutoff vacuum cave 2, then vacuum heat-insulating container is taken out vacuum environment, then circular sealing sheet 121 is put into the second circular groove 12, finally weld, circular sealing sheet 121 is thoroughly fixed in the second circular groove 12; When welding, sidewall spacers 4 is filled full by circular sealing sheet 121 edge of fusing, makes vacuum heat-insulating container sealed bottom, smooth.
In one preferably embodiment, because cool-bag is double-layer vacuum structure, thus under common welding manner direct welding product base material, very easily by broken for vacuum layer weldering, cause vacuum layer to leak, cause product bad, therefore, the mode of laser weld is adopted.
The foregoing is only preferred embodiment of the present invention; not thereby embodiments of the present invention and protection domain is limited; to those skilled in the art; should recognize and all should be included in the scheme that equivalent replacement done by all utilizations description of the present invention and diagramatic content and apparent change obtain in protection scope of the present invention.
Claims (10)
1. a sealing structure bottom vacuum heat-insulating container, is characterized in that, comprising:
One vacuum heat-insulating container outer tube, bottom it, axial indent is formed with a step trough; With
One vacuum cave, is opened in the bottom of described vacuum heat-insulating container outer tube and is positioned at the top of described step trough;
Wherein, described step trough comprises the first circular groove and the second circular groove from top to bottom successively, is filled with the envelope material in vacuum cave described in shutoff in described first circular groove, and, be welded with the circular sealing sheet of the described envelope material of protection in described second circular groove;
The top diameter of described second circular groove is less than its base diameter, and the diameter of described circular sealing sheet is less than the base diameter of described second circular groove, and the thickness of described circular sealing sheet is less than the degree of depth of described second circular groove;
The edge melting of described sealing sheet is filled in the sidewall spacers that formed between described second circular groove sidewall and described sealing sheet sidewall.
2. sealing structure bottom vacuum heat-insulating container according to claim 1, is characterized in that: leave height gap between described envelope material and described sealing sheet.
3. sealing structure bottom vacuum heat-insulating container according to claim 2, is characterized in that: the height of described height gap is 0.01mm to 1mm.
4. sealing structure bottom vacuum heat-insulating container according to claim 1, is characterized in that: described sealing sheet is made up of identical material with described cool-bag outer tube.
5. sealing structure bottom vacuum heat-insulating container according to claim 4, is characterized in that: described sealing sheet material is metal.
6. sealing structure bottom vacuum heat-insulating container according to claim 5, is characterized in that: described sealing sheet material is stainless steel.
7. sealing structure bottom vacuum heat-insulating container according to claim 1, is characterized in that: the material of described envelope material is glass.
8. sealing structure bottom vacuum heat-insulating container according to claim 1, is characterized in that: be filled with envelope material in described vacuum cave.
9. a sealing method bottom vacuum heat-insulating container, is characterized in that: comprise the sealing structure as described in claim 1 to 8 any one, its step is as follows,
Step one, described vacuum heat-insulating container is positioned in vacuum environment;
Step 2, described envelope material to be positioned in described first groove, and described envelope material is heated, described envelope material is melted and flow vacuum cave described in shutoff and described first groove;
Step 3, after the cooling of described envelope material, described vacuum heat-insulating container is taken out vacuum environment;
Step 4, described sealing sheet to be positioned in described groove, and to be welded and fixed.
10. sealing method bottom vacuum heat-insulating container according to claim 9, is characterized in that: described in be welded as laser weld.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573921.1A CN105266654A (en) | 2015-09-10 | 2015-09-10 | Vacuum heat preservation container bottom sealing structure and sealing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510573921.1A CN105266654A (en) | 2015-09-10 | 2015-09-10 | Vacuum heat preservation container bottom sealing structure and sealing method thereof |
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| CN105266654A true CN105266654A (en) | 2016-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510573921.1A Pending CN105266654A (en) | 2015-09-10 | 2015-09-10 | Vacuum heat preservation container bottom sealing structure and sealing method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354471A (en) * | 2018-04-10 | 2018-08-03 | 江苏昶典不锈钢制品有限公司 | A kind of both ends lead to vacuum heat-insulating container outer tube sealing structure and sealing method |
| WO2019195999A1 (en) * | 2018-04-10 | 2019-10-17 | 江苏昶典不锈钢制品有限公司 | Two-end-through vacuum heat preservation container outer tube sealing structure and sealing method |
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| CN1091942A (en) * | 1992-12-24 | 1994-09-14 | 日本酸素株式会社 | Metal vacuumed double-wall container and manufacture method thereof |
| CN1232774A (en) * | 1998-04-23 | 1999-10-27 | 日本酸素株式会社 | Metal vacuum double-wall container and its producing method |
| JP2000166777A (en) * | 1998-12-03 | 2000-06-20 | Tiger Vacuum Bottle Co Ltd | Metallic heat retaining vacuum container |
| JP2002345655A (en) * | 2001-05-29 | 2002-12-03 | Tiger Vacuum Bottle Co Ltd | Vacuum double container and sealing method therefor |
| CN1387815A (en) * | 2001-05-29 | 2003-01-01 | 老虎魔法瓶株式会社 | Metal vacuum double-layer container and its producing method, composition for sealing |
| CN1720846A (en) * | 2004-07-14 | 2006-01-18 | 日本电气硝子株式会社 | Glass for sealing and its manufacturing method |
| CN102837894A (en) * | 2011-06-21 | 2012-12-26 | 膳魔师（中国）家庭制品有限公司 | Metal vacuum heat insulation container |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US1551778A (en) * | 1921-12-31 | 1925-09-01 | Icy Hot Bottle Company | Double-walled vessel |
| CN1091942A (en) * | 1992-12-24 | 1994-09-14 | 日本酸素株式会社 | Metal vacuumed double-wall container and manufacture method thereof |
| CN1232774A (en) * | 1998-04-23 | 1999-10-27 | 日本酸素株式会社 | Metal vacuum double-wall container and its producing method |
| JP2000166777A (en) * | 1998-12-03 | 2000-06-20 | Tiger Vacuum Bottle Co Ltd | Metallic heat retaining vacuum container |
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| CN1720846A (en) * | 2004-07-14 | 2006-01-18 | 日本电气硝子株式会社 | Glass for sealing and its manufacturing method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108354471A (en) * | 2018-04-10 | 2018-08-03 | 江苏昶典不锈钢制品有限公司 | A kind of both ends lead to vacuum heat-insulating container outer tube sealing structure and sealing method |
| WO2019195999A1 (en) * | 2018-04-10 | 2019-10-17 | 江苏昶典不锈钢制品有限公司 | Two-end-through vacuum heat preservation container outer tube sealing structure and sealing method |
| US11564530B2 (en) | 2018-04-10 | 2023-01-31 | Jiang Su Sun-Upper Stainless Steel Products Co., Ltd. | Two-end-through vacuum heat-insulated container outer tube sealing structure and sealing method |
| CN108354471B (en) * | 2018-04-10 | 2024-07-12 | 江苏昶典不锈钢制品有限公司 | Sealing structure and sealing method for outer tube of vacuum heat-preserving container with two ends communicated |
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Application publication date: 20160127 |
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