CN215532262U - Square vacuum heat-preservation lunch box - Google Patents
Square vacuum heat-preservation lunch box Download PDFInfo
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- CN215532262U CN215532262U CN202121338191.4U CN202121338191U CN215532262U CN 215532262 U CN215532262 U CN 215532262U CN 202121338191 U CN202121338191 U CN 202121338191U CN 215532262 U CN215532262 U CN 215532262U
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- lunch box
- box cover
- box body
- lunch
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Abstract
The utility model discloses a square vacuum heat-preservation lunch box, which comprises a lunch box body and a lunch box cover, wherein the lunch box cover is covered on the upper end port of the lunch box body; the lunch box cover is of a double-layer structure consisting of a lunch box cover inner shell and a lunch box cover outer shell, a VIP plate core material II is arranged in a lunch box cover cavity between the lunch box cover inner shell and the lunch box cover outer shell, and a lunch box cover vacuum layer is formed in the lunch box cover cavity through vacuumizing treatment. The square vacuum heat-preservation lunch box has better heat-preservation effect, and solves the technical problem that the square lunch box adopts a double-layer vacuum heat-preservation structure to generate 'depression' on the larger planes of the lunch box body and the lunch box cover.
Description
Technical Field
The utility model relates to a square lunch box, in particular to a square vacuum heat-preservation lunch box.
Background
Square lunch-box on the market at present, it is the individual layer lunch-box mostly, chinese utility model patent "an electric heat preservation lunch-box" like this, but the benefit number is ZL202022221404.7, including box body 1 and lid 2 on box body 1 of closing, the bottom of box body 1 is equipped with the mechanism that generates heat, be equipped with the stainless steel inner bag 3 that is used for holding food in the box body 1, the periphery that the upper shed of box body 1 is located stainless steel inner bag 3 is equipped with the round and is used for sealed vertical limit 11, be equipped with sealed lid 4 between lid 2 and the box body 1, the bottom surface of sealed lid 4 is equipped with the round and erects the sealing washer 41 of the inner wall tight fit of limit 11, the bottom surface of lid 2 is equipped with the round and is used for compressing tightly sealed vertical limit 21 that covers 4, the bottom surface of lid 2 is equipped with the cavity 22 that is used for placing the tableware, cavity 22 is equipped with tableware limit clip 23, the side that the bottom surface of lid 2 is located cavity 22 is equipped with exhaust hole 24. The utility model discloses a chinese utility model patent for military use that patent number is ZL201922112949.1 again "a for military use heat preservation lunch-box", it includes lunch-box body 1, this internal a plurality of recesses 2 that are equipped with of lunch-box, lunch-box body 1 upper end lid has closed lunch- box cover 3, 3 basal surfaces of lunch-box cover are equipped with a plurality of archs 4 with recess 2 bore looks adaptation, lunch-box cover 3 is equipped with connecting axle 5 all around, lunch-box cover 3 has connection pin thread 6 through connecting axle 5 swing joint, 1 bottom of lunch-box body is equipped with heat preservation 7, 7 bottoms of heat preservation are provided with plastic box 8, 8 upper ends of plastic box are outer along fixed being provided with and being connected the fixed box thread 9 of pin thread 6 matched with.
The round heat-insulating lunch box has a double-layer structure of inner and outer shells, and most of the cavities (also called gaps) between the inner and outer shells of the box body are filled with foam plastics or foaming materials as heat-insulating materials (of course, the heat-insulating effect is not very good because of the larger heat conductivity coefficient of the foam plastics or the foaming materials).
The square lunch box has the advantages that the area of the upper and lower planes of the box body and the box cover is large, the whole support is weak, if the inner shell and the outer shell are in a double-layer structure and filled with foam plastics or foam materials, the large plane of the box body or the box cover can generate bulging or depression, and therefore the square lunch box is difficult to adopt a double-layer heat insulation structure in the prior art. If the square lunch box adopts an inner shell and an outer shell double-layer structure and the cavity between the inner shell and the outer shell is vacuumized, the large pressure of the atmospheric pressure can cause the larger planes of the box body and the box cover to collapse, and the technical difficulty is higher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a square vacuum heat-insulation lunch box which has a better heat-insulation effect and solves the technical problem that the square lunch box adopts a double-layer vacuum heat-insulation structure to generate 'depression' on the larger planes of a lunch box body and a lunch box cover.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a square vacuum heat-preservation lunch box comprises a lunch box body and a lunch box cover covering an upper port of the lunch box body, wherein the lunch box body is of a double-layer structure consisting of a lunch box body inner shell and a lunch box body outer shell, a VIP plate core material I is arranged in a lunch box body cavity between the lunch box body inner shell and the lunch box body outer shell, and the lunch box body cavity is vacuumized to form a vacuum layer of the lunch box body; the lunch box cover is of a double-layer structure consisting of a lunch box cover inner shell and a lunch box cover outer shell, a VIP plate core material II is arranged in a lunch box cover cavity between the lunch box cover inner shell and the lunch box cover outer shell, and the lunch box cover vacuum layer is formed by vacuumizing the lunch box cover cavity.
The lunch box body inner shell is connected with the lunch box body outer shell through welding; the lunch box cover inner shell and the lunch box cover outer shell are connected through welding.
Getter is arranged in the vacuum layer of the lunch box body and the vacuum layer of the lunch box cover.
The lunch box body and the lunch box cover are covered by the locking mechanism.
The locking mechanism comprises a lock catch, a connecting piece, a lock catch pin shaft, a side pin shaft hinge seat and lock catch pin shaft hinge seats, wherein the side pin shaft hinge seat is arranged on the outer side surface of the lunch box body, the lock catch pin shaft hinge seats are arranged on two sides of the lock catch, one end of the connecting piece is hinged with the side pin shaft hinge seat through the side pin shaft, and the other end of the connecting piece is hinged with the lock catch pin shaft hinge seats through the lock catch pin shaft.
The outer edge of the lunch box cover is provided with an annular bulge, and the upper end of the lock catch is provided with a lock hook which is buckled with the annular bulge.
The lower end of the lock catch is provided with an outward warped spanner.
A sealing ring is arranged between the port part of the upper port of the lunch box body and the circumferential surface of the lower end of the lunch box cover.
Compared with the prior art, the utility model has the beneficial effects that: by adopting the technical scheme, the lunch box body is of a double-layer structure consisting of a lunch box body inner shell and a lunch box body outer shell, a VIP plate core material I is arranged in a lunch box body cavity between the lunch box body inner shell and the lunch box body outer shell, and the lunch box body cavity is vacuumized to form a vacuum layer of the lunch box body; the lunch box cover is of a double-layer structure consisting of a lunch box cover inner shell and a lunch box cover outer shell, a VIP plate core material II is arranged in a lunch box cover cavity between the lunch box cover inner shell and the lunch box cover outer shell, and the lunch box cover cavity is vacuumized to form a lunch box cover vacuum layer; the provided VIP board core material (VIP is the abbreviation of English Vacuum Insulation Panel), not only has the heat preservation effect, but also the VIP board core material (including VIP board core material one and VIP board core material two) also serves as the supporting material between the inner shell and the outer shell, so that the larger plane of the lunch box body and the lunch box cover is not easy to generate 'depression' due to Vacuum pumping, and the technical problem that the square lunch box can generate 'depression' at the larger plane by adopting a double-layer Vacuum heat preservation structure is solved.
The further beneficial effects are that: the locking mechanism is convenient to open and close, firm and stable. The whole structure is simple, and the production efficiency is high.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is an enlarged view of a portion B in fig. 2.
Detailed Description
In order to make the technical solution of the present invention clearer, the present invention is described in detail below with reference to fig. 1 to 4. It should be understood that the detailed description and specific examples, while indicating the scope of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model.
The utility model relates to a square vacuum heat-preservation lunch box, which comprises a lunch box body 1 and a lunch box cover 2 covering the upper end opening of the lunch box body 1, wherein the lunch box body 1 is of a double-layer structure consisting of a lunch box body inner shell 1-1 and a lunch box body outer shell 1-2, a VIP plate core material I3 is arranged in a lunch box body cavity between the lunch box body inner shell 1-1 and the lunch box body outer shell 1-2, and the lunch box body cavity forms a vacuum layer of the lunch box body through vacuum-pumping treatment; the lunch box cover 2 is of a double-layer structure consisting of a lunch box cover inner shell 2-1 and a lunch box cover outer shell 2-2, a VIP plate core material II 4 is arranged in a lunch box cover cavity between the lunch box cover inner shell 2-1 and the lunch box cover outer shell 2-2, and the lunch box cover vacuum layer is formed by vacuumizing the lunch box cover cavity.
Preferably, the lunch box body inner shell 1-1 and the lunch box body outer shell 1-2 are connected by welding after the VIP plate core material I3 is filled in; the lunch box cover inner shell 2-1 and the lunch box cover outer shell 2-2 are connected by welding after a VIP plate core material II 4 is arranged; the middle parts of the lunch box cover shell 2-2 and the lunch box body shell 1-2 are respectively provided with a vacuumizing hole 12 for vacuumizing the lunch box cover cavity and the lunch box body cavity, the vacuumizing hole 12 can be plugged by vacuum brazing after vacuumizing, the vacuum brazing belongs to the mature prior art, and is particularly widely applied to vacuum heat-preserving cups, and the details are not repeated. In order to have better vacuum degree, getter 13 is arranged in the vacuum layer of the lunch box body and the vacuum layer of the lunch box cover.
Preferably, the lunch box body 1 and the lunch box cover 2 are covered by a locking mechanism. The locking mechanism comprises a lock catch 5, a connecting piece 6, a lock catch pin shaft 7, a side pin shaft 8, a side pin shaft hinging seat 9 arranged on the outer side surface of the lunch box body 1 and a lock catch pin shaft hinging seat 10 arranged on two sides of the lock catch 5, wherein one end of the connecting piece 6 is hinged with the side pin shaft hinging seat 9 through the side pin shaft 8, and the other end of the connecting piece 6 is hinged with the lock catch pin shaft hinging seat 10 through the lock catch pin shaft 7. The outer edge of the lunch box cover 2 is provided with an annular bulge 2-3, and the upper end of the lock catch 5 is provided with a lock hook 5-1 which is buckled with the annular bulge 2-3. The lower end of the lock catch 5 is provided with an outward warped spanner 5-2. A sealing ring 11 is arranged between the port part 1-3 of the upper port of the lunch box body 1 and the circumference surface of the lower end of the lunch box cover 2.
Claims (8)
1. The utility model provides a square vacuum insulation lunch-box, includes lunch-box body (1) and lid fit lunch-box cover (2) of port on lunch-box body (1), its characterized in that: the lunch box body (1) is of a double-layer structure consisting of a lunch box body inner shell (1-1) and a lunch box body outer shell (1-2), a VIP board core material I (3) is arranged in a lunch box body cavity between the lunch box body inner shell (1-1) and the lunch box body outer shell (1-2), and the lunch box body cavity is vacuumized to form a vacuum layer of the lunch box body; the lunch box cover (2) is of a double-layer structure consisting of a lunch box cover inner shell (2-1) and a lunch box cover outer shell (2-2), a VIP plate core material II (4) is arranged in a lunch box cover cavity between the lunch box cover inner shell (2-1) and the lunch box cover outer shell (2-2), and the lunch box cover vacuum layer is formed by vacuumizing the lunch box cover cavity.
2. The square vacuum heat-preservation lunch box according to claim 1, characterized in that: the lunch box body inner shell (1-1) is connected with the lunch box body outer shell (1-2) through welding; the lunch box cover inner shell (2-1) and the lunch box cover outer shell (2-2) are connected by welding.
3. The square vacuum heat-preservation lunch box according to claim 2, characterized in that: getter (13) are respectively arranged in the vacuum layer of the lunch box body and the vacuum layer of the lunch box cover.
4. The square vacuum insulation lunch box according to any one of claims 1 to 3, wherein: the lunch box body (1) and the lunch box cover (2) are covered by a locking mechanism.
5. The square vacuum heat-preservation lunch box according to claim 4, characterized in that: the locking mechanism comprises a lock catch (5), a connecting piece (6), a lock catch pin shaft (7), a side pin shaft (8), a side pin shaft hinging seat (9) arranged on the outer side surface of the lunch box body (1) and lock catch pin shaft hinging seats (10) arranged on the two sides of the lock catch (5), one end of the connecting piece (6) is hinged with the side pin shaft hinging seat (9) through the side pin shaft (8), and the other end of the connecting piece (6) is hinged with the lock catch pin shaft hinging seat (10) through the lock catch pin shaft (7).
6. The square vacuum heat-preservation lunch box according to claim 5, characterized in that: the outer edge of the lunch box cover (2) is provided with an annular bulge (2-3), and the upper end of the lock catch (5) is provided with a lock hook (5-1) which is used for being buckled with the annular bulge (2-3).
7. The square vacuum heat-preservation lunch box according to claim 6, characterized in that: the lower end of the lock catch (5) is provided with an outward warped spanner (5-2).
8. The square vacuum heat-preservation lunch box according to claim 7, characterized in that: a sealing ring (11) is arranged between the port part (1-3) of the upper port of the lunch box body (1) and the circumferential surface of the lower end of the lunch box cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338191.4U CN215532262U (en) | 2021-06-16 | 2021-06-16 | Square vacuum heat-preservation lunch box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121338191.4U CN215532262U (en) | 2021-06-16 | 2021-06-16 | Square vacuum heat-preservation lunch box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215532262U true CN215532262U (en) | 2022-01-18 |
Family
ID=79817599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121338191.4U Active CN215532262U (en) | 2021-06-16 | 2021-06-16 | Square vacuum heat-preservation lunch box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215532262U (en) |
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2021
- 2021-06-16 CN CN202121338191.4U patent/CN215532262U/en active Active
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