Double-vacuum travel heat preservation kettle

By designing a double vacuum layer and an electric heating plate in the travel thermos, the problem of poor heat preservation in existing thermoses has been solved, enabling the function of heating and drinking hot water anytime, anywhere.

CN224112280UActive Publication Date: 2026-04-14ZHEJIANG YIHE WOOD IND & TRADE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-22
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing travel thermos flasks have poor heat retention, making it impossible for users to access hot water anytime and anywhere outdoors, requiring them to manually heat the water for drinking.

Method used

Design a double vacuum travel thermos with a double vacuum layer and an electric heating plate. The electric heating plate heats the water, improving the heat preservation effect and allowing you to drink hot water anytime, anywhere.

Benefits of technology

It improves the heat preservation effect of the thermos and extends the heat preservation time, so users can drink hot water anytime without having to heat it manually.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224112280U_ABST
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Abstract

The utility model discloses a double-vacuum travel heat preservation kettle. The water heater comprises a shell, a first sealing base is arranged at the bottom of the shell, a protective sleeve is arranged in the middle of the outer surface of the shell, a first inner container and a second inner container are arranged in the shell, and a second sealing base is arranged at the bottom of the first inner container. First supporting pads are arranged between the shell and the first inner container and between the first sealing base and the second sealing base, and second supporting pads are arranged between the first inner container and the second sealing base and between the second inner container. According to the heat preservation kettle, the two vacuum layers are arranged, the heat preservation effect of the heat preservation kettle is improved through the two vacuum layers, so that the heat preservation time of the heat preservation kettle is prolonged, the electric heating plate is arranged in the heat preservation kettle, drinking water in the second inner container can be heated through the electric heating plate, a user does not need to manually heat the drinking water outdoors, and the user experience is improved. And a user can drink or use hot water anytime and anywhere.
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Description

Technical Field

[0001] This utility model relates to the field of thermos flask technology, specifically a double vacuum travel thermos flask. Background Technology

[0002] Existing insulated containers, such as thermos flasks or insulated cups, are generally made of ceramic or stainless steel with a vacuum layer to hold liquids (water, tea, coffee, soup, etc.). They have a lid that seals tightly, and the vacuum insulation layer slows down the heat loss of the liquid inside, thus achieving the purpose of keeping it warm. However, current travel thermos flasks only have a single vacuum layer inside, resulting in poor heat retention. Furthermore, users cannot easily access hot water while traveling outdoors and must manually heat their drinking water outdoors. Utility Model Content

[0003] The purpose of this invention is to provide a double vacuum travel thermos to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double vacuum travel thermos, comprising an outer shell: a first sealing base is provided at the bottom of the outer shell, a protective sleeve is provided at the middle position of the outer surface of the outer shell, a first inner liner and a second inner liner are provided inside the outer shell, a second sealing base is provided at the bottom of the first inner liner, a first support pad is provided between the outer shell and the first inner liner, and between the first sealing base and the second sealing base, a second support pad is provided between the first inner liner, the second sealing base and the second inner liner, a battery is provided at the bottom inside the second inner liner, a first partition is provided at the top of the battery, a heat insulation pad is provided at the top of the first partition, an electric heating plate is provided at the top of the heat insulation pad, a second partition is provided at the top of the electric heating plate, and a control switch is provided on the outside of the first sealing base.

[0005] By adopting the above technical solution, during the production process of the thermos, the user can easily place the first and second support pads through the first and second sealing bases, and it is also convenient to create a vacuum between the outer shell, the first inner liner, and the second inner liner. Since the thermos is equipped with a double vacuum, the heat preservation effect of the thermos is improved. Furthermore, the drinking water inside the thermos can be heated through the battery and electric heating plate, eliminating the need for the user to manually heat the drinking water, allowing the user to drink hot water anytime and anywhere.

[0006] Preferably, the top of the outer surface of the outer shell is provided with a central bolt design, one side of the central bolt design is provided with a locking structure, and the other side of the top of the central bolt design is rotatably provided with a cup lid.

[0007] By adopting the above technical solution, users can fix the lid to the stopper design through the locking structure, thereby sealing the thermos and preventing drinking water from being contaminated by the external environment, and achieving a sealing effect.

[0008] Preferably, the top of the outer surface of the housing and the bottom of the inner surface of the bolt design are both provided with threads, and the housing and the bolt design are connected by threads.

[0009] By adopting the above technical solution, the bolt design and the threads on the outer shell can stably and firmly connect the bolt design to the outer shell during user use, preventing the bolt design from falling off the outer shell.

[0010] Preferably, the outer shell is welded to the first sealing base, the outer shell is welded to the first inner liner, the first inner liner is welded to the second sealing base, and the second inner liner is welded to the outer shell.

[0011] Preferably, the outer shell and the first sealing base form a housing, the first inner liner and the second sealing base form a middle inner liner, and a vacuum layer is provided between the second inner liner, the housing and the middle inner liner.

[0012] By adopting the above technical solution, since there are two vacuum layers inside the thermos, the heat preservation effect of the thermos is improved and the heat preservation time is extended during the use of the thermos.

[0013] Preferably, the first partition is welded to the second partition and the second inner liner, and two support rings are provided at the bottom of the interior of the second inner liner. The second inner liner is connected to the first partition and the second partition respectively through the two support rings.

[0014] By adopting the above technical solution, the first partition, the second partition, and the second inner liner are limited by the support ring, and the support ring can assist in the welding of the first partition and the second partition.

[0015] Preferably, the battery, the electric heating plate, and the control switch are electrically connected, and a connection port is provided on the outer side of the first sealing base, through which the first sealing base is connected to the control switch.

[0016] By adopting the above technical solution, a charging interface is provided on the control switch, which allows the user to charge the battery, enabling the battery to provide power to the electric heating plate. The second inner tank is made of heat-conducting material, allowing the electric heating plate to heat the drinking water inside the second inner tank.

[0017] Compared with the prior art, the beneficial effects of this utility model are: the double vacuum travel thermos has two vacuum layers, which improve the heat preservation effect of the thermos and extend the heat preservation time. In addition, an electric heating plate is installed inside the thermos, which can heat the drinking water in the second inner liner, eliminating the need for users to manually heat drinking water outdoors, so that users can drink or use hot water anytime and anywhere. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a side view of the present invention;

[0020] Figure 3 This is a side view of the structure of this utility model.

[0021] In the diagram: 1. Outer shell; 2. First sealing base; 3. Protective sleeve; 4. First inner liner; 5. Second sealing base; 6. First support pad; 7. Second inner liner; 8. Second support pad; 9. Battery; 10. First partition; 11. Heat insulation pad; 12. Electric heating plate; 13. Second partition; 14. Control switch; 15. Middle stopper design; 16. Locking structure; 17. Cup lid. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-3This utility model provides an embodiment of a double vacuum travel thermos, comprising an outer shell 1; a first sealing base 2 is provided at the bottom of the outer shell 1; a protective sleeve 3 is provided at the middle position of the outer surface of the outer shell 1; a first inner liner 4 and a second inner liner 7 are provided inside the outer shell 1; a second sealing base 5 is provided at the bottom of the first inner liner 4; a first support pad 6 is provided between the outer shell 1 and the first inner liner 4, and between the first sealing base 2 and the second sealing base 5; a second support pad 8 is provided between the first inner liner 4, the second sealing base 5, and the second inner liner 7; a battery 9 is provided at the bottom of the second inner liner 7; a first partition 10 is provided at the top of the battery 9; a heat insulation pad 11 is provided at the top of the first partition 10; and an electric heating plate 12 is provided at the top of the heat insulation pad 11. A second partition 13 is provided on the top of the plate 12, and a control switch 14 is provided on the outside of the first sealing base 2. During the production process of the thermos, the user can easily place the first support pad 6 and the second support pad 8 through the first sealing base 2 and the second sealing base 5, and it is also convenient to perform vacuuming between the outer shell 1, the first inner liner 4 and the second inner liner 7. Since the thermos is equipped with a double vacuum, the heat preservation effect of the thermos is improved. Furthermore, the drinking water in the thermos can be heated by the battery 9 and the electric heating plate 12, eliminating the need for the user to manually heat the drinking water, allowing the user to drink hot water anytime and anywhere. The first support pad 6 and the second support pad 8 can provide support, preventing the outer shell, the middle inner liner and the second inner liner 7 from collapsing during vacuum operation.

[0024] In this embodiment, a stopper design 15 is provided on the top of the outer surface of the outer shell 1. A locking structure 16 is provided on one side of the stopper design 15. A cup lid 17 is rotatably provided on the other side of the top of the stopper design 15. The user can fix the cup lid 17 on the stopper design 15 through the locking structure 16, thereby sealing the thermos and preventing drinking water from being contaminated by the external environment, and achieving a sealing effect.

[0025] In this embodiment, the top of the outer surface of the housing 1 and the bottom of the inner surface of the bolt design 15 are both provided with threads. The housing 1 and the bolt design 15 are connected by threads. When the user uses the bolt design 15, the threads on the housing 1 can stably and firmly connect the bolt design 15 to the housing 1, preventing the bolt design 15 from falling off the housing 1.

[0026] In this embodiment, the outer shell 1 is welded to the first sealing base 2, the outer shell 1 is welded to the first inner liner 4, the first inner liner 4 is welded to the second sealing base 5, and the second inner liner 7 is welded to the outer shell 1.

[0027] In this embodiment, the outer shell 1 and the first sealing base 2 form the shell, the first inner liner 4 and the second sealing base 5 form the middle inner liner, and a vacuum layer is provided between the second inner liner 7, the shell and the middle inner liner. Since there are two vacuum layers inside the thermos, the heat preservation effect of the thermos is improved and the heat preservation time is extended during the use of the thermos.

[0028] In this embodiment, the first partition 10 is welded to the second partition 13 and the second inner liner 7. Two support rings are provided at the bottom of the inner liner 7. The second inner liner 7 overlaps with the first partition 10 and the second partition 13 through the two support rings respectively. The first partition 10, the second partition 13 and the second inner liner 7 are limited by the support rings, and the support rings can assist the welding of the first partition 10 and the second partition 13.

[0029] In this embodiment, the battery 9, the electric heating plate 12, and the control switch 14 are electrically connected. The outer side of the first sealing base 2 is provided with a connection port, and the first sealing base 2 is connected to the control switch 14 through the connection port. A charging interface is provided on the control switch 14, and the user can charge the battery 9 through the charging interface so that the battery 9 can provide power to the electric heating plate 12. The second inner tank 7 is composed of heat-conducting material so that the electric heating plate 12 can heat the drinking water in the second inner tank 7.

[0030] Working principle: During the trip, the user puts drinking water into the second inner liner 7, and then activates the electric heating plate 12 through the control switch 14. The electric heating plate 12 heats the second inner liner 7, enabling the second inner liner 7 to heat the drinking water. Since the thermos has two vacuum layers, the heat preservation effect of the thermos is improved, and the two vacuum layers also extend the heat preservation time of the thermos.

[0031] For those skilled in the art, this invention is not limited to the details of the exemplary embodiments described above, and can be implemented in other specific forms without departing from the spirit or scope of this invention. Therefore, the embodiments of this invention are exemplary and not restrictive. The scope of this invention is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double vacuum travel thermos, comprising an outer shell (1), characterized in that: The bottom of the outer shell (1) is provided with a first sealing base (2), and a protective sleeve (3) is provided at the middle position of the outer surface of the outer shell (1). The interior of the outer shell (1) is provided with a first inner liner (4) and a second inner liner (7). The bottom of the first inner liner (4) is provided with a second sealing base (5). A first support pad (6) is provided between the outer shell (1) and the first inner liner (4) and between the first sealing base (2) and the second sealing base (5). 5) A second support pad (8) is provided between the second inner liner (7) and the second inner liner (7). A storage battery (9) is provided at the bottom of the second inner liner (7). A first partition (10) is provided at the top of the storage battery (9). A heat insulation pad (11) is provided at the top of the first partition (10). An electric heating plate (12) is provided at the top of the heat insulation pad (11). A second partition (13) is provided at the top of the electric heating plate (12). A control switch (14) is provided on the outside of the first sealing base (2).

2. The double vacuum travel thermos flask according to claim 1, characterized in that: The top of the outer surface of the outer shell (1) is provided with a central bolt design (15), a locking structure (16) is provided on one side of the central bolt design (15), and a cup lid (17) is rotatably provided on the other side of the top of the central bolt design (15).

3. A double vacuum travel thermos according to claim 2, characterized in that: The top of the outer surface of the outer shell (1) and the bottom of the inner surface of the bolt design (15) are both provided with threads, and the outer shell (1) and the bolt design (15) are connected by threads.

4. A double vacuum travel thermos flask according to claim 1, characterized in that: The outer shell (1) is welded to the first sealing base (2), the outer shell (1) is welded to the first inner liner (4), the first inner liner (4) is welded to the second sealing base (5), and the second inner liner (7) is welded to the outer shell (1).

5. A double vacuum travel thermos according to claim 1, characterized in that: The outer shell (1) and the first sealing base (2) form a shell, the first inner liner (4) and the second sealing base (5) form a middle inner liner, and a vacuum layer is provided between the second inner liner (7), the shell and the middle inner liner.

6. A double vacuum travel thermos according to claim 1, characterized in that: The first partition (10) is welded to the second partition (13) and the second inner liner (7). The bottom of the second inner liner (7) is provided with two support rings. The second inner liner (7) is connected to the first partition (10) and the second partition (13) through the two support rings respectively.

7. A double vacuum travel thermos according to claim 1, characterized in that: The battery (9), the electric heating plate (12) and the control switch (14) are electrically connected. The first sealing base (2) has a connection port on its outer side, and the first sealing base (2) is connected to the control switch (14) through the connection port.