Double-layer vacuum cup

Abstract

The utility model discloses a double-layer vacuum cup which comprises an inner container and an outer shell which are integrally formed, the top of the inner container and the top of the outer shell are connected into a whole, a vacuum layer is formed between the inner container and the outer shell, a vacuum bottom layer is arranged at the bottom of the outer shell, and a vacuumizing position used for pumping air out of the vacuum layer is arranged on the vacuum bottom layer. The vacuum bottom layer is provided with a vacuum solder layer used for blocking the vacuumizing position. A plugging layer is further arranged at the bottom of the shell and located under the vacuum bottom layer; the problems that an existing screw cap type double-layer vacuum cup is limited in use convenience, and a common open cup cannot achieve heat preservation and cold preservation are solved. According to the open type double-layer vacuum cup, due to the fact that the vacuum layer is formed between the inner container and the outer shell, heat transfer is effectively reduced, liquid in the cup can be kept at the temperature for a long time, and the good taste can be maintained whether hot water or cold drink exists. Meanwhile, due to the open design, a user can conveniently clean, pour and observe the liquid, and the use convenience is improved.

Description

Technical Field

[0001] This utility model pertains to daily necessities, specifically relating to a double-walled vacuum cup. Background Technology

[0002] Double-walled vacuum cups are containers that achieve heat preservation by forming a vacuum layer through a double-walled glass or stainless steel structure. Currently, most double-walled vacuum cups on the market feature a screw-on lid design, consisting of an inner liner, outer shell, lid, and some auxiliary components. The screw-on lid design, with its tight threaded connection between the rim and lid, not only excels at blocking heat conduction and achieving long-lasting heat or cold preservation, but also effectively prevents liquid leakage, greatly facilitating user portability. However, this sealed design requires users to perform an extra step of screwing on the lid when they need to drink quickly, and it's difficult to visually observe the remaining amount of beverage. Common open-mouth cups have a completely open mouth and no lid, with the cup body directly connected to the rim, making it easy to drink from and observe the liquid state. However, for ease of grip, the cup body of open-mouth cups is usually designed as cylindrical or frustum-shaped, requiring the hand to contact a large area of ​​the cup wall. When brewing tea, the cup body quickly transfers heat to the hand, producing a burning sensation. In addition, the single-layer cup design lacks an effective heat preservation structure, causing the tea to cool down quickly, which in turn affects the taste. Utility Model Content

[0003] To overcome the shortcomings of the prior art, the purpose of this utility model is to provide a double-walled vacuum cup, which solves the problems of limited convenience of existing screw-top double-walled vacuum cups and the inability to keep hot or cold drinks hot when held in ordinary open cups.

[0004] This utility model is achieved through the following technical solution:

[0005] A double-walled vacuum cup includes an integrally formed inner liner and an outer shell. The top of the inner liner and the top of the outer shell are connected as one piece, forming a vacuum layer between the inner liner and the outer shell. A vacuum bottom layer is provided at the bottom of the outer shell, and a vacuum extraction position is provided on the vacuum bottom layer for extracting air from the vacuum layer. A vacuum solder layer is provided on the vacuum bottom layer for sealing the vacuum extraction position. A sealing layer is also provided at the bottom of the outer shell, directly below the vacuum bottom layer.

[0006] Furthermore, the outer shell has a circular cross-section with a top diameter larger than a bottom diameter.

[0007] Furthermore, the inner liner, outer shell, vacuum bottom layer, and sealing layer are all made of metal.

[0008] Furthermore, the vacuum bottom layer is fixed to the outer shell by welding.

[0009] Furthermore, the sealing layer is fixed to the outer shell by welding.

[0010] Furthermore, the metal material is specifically stainless steel, aluminum alloy, or pure titanium.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This innovative open-top double-walled vacuum cup features a vacuum layer between the inner liner and outer shell. This layer effectively insulates against heat, preventing burns when holding hot drinks, and also reduces heat transfer, allowing the liquid inside to maintain its temperature for an extended period. Whether hot or cold, the liquid retains its optimal taste. The open design facilitates cleaning, pouring, and observation of the liquid, enhancing ease of use.

[0013] Furthermore, the vacuum extraction position and vacuum solder layer on the vacuum bottom layer of this utility model allow air to be easily extracted from the vacuum layer during the manufacturing process, forming a stable vacuum state. The sealing layer effectively prevents air from re-entering the vacuum layer, ensuring both the long-term heat preservation effect of the cup and the integrity and aesthetics of the entire cup. At the same time, it avoids wear and loosening of the solder or solder joints caused by frequent cleaning of the cup during use.

[0014] The design of this invention, with a top diameter larger than the bottom diameter, reduces the risk of center of gravity shift, making the cup more stable when placed. The vacuum structure enhances the overall strength of the cup, making it less prone to deformation or breakage. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the present invention.

[0016] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0017] Among them, 1-inner liner; 2-vacuum layer; 3-outer shell; 4-vacuum bottom layer; 5-vacuum extraction position; 6-vacuum solder layer; 7-sealing layer. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to specific embodiments. The description is for explanation and not limitation of the present invention.

[0019] refer to Figure 1 As shown, this utility model provides a double-layer vacuum cup, including an integrally molded inner liner 1 and an outer shell 3. The inner liner 1 is the innermost container of the vacuum cup, used to directly hold liquids and other items. It is made of stainless steel, which has good corrosion resistance and sealing performance, and can ensure the quality and hygiene of the liquid inside. The outer shell 3 is the outer protective layer of the vacuum cup, which plays a role in supporting and protecting the internal structure. It is made of stainless steel and can resist external impacts and pressure, thus extending the service life of the vacuum cup.

[0020] The top of the inner liner 1 and the top of the outer shell 3 are integrated, forming a vacuum layer 2 between the inner liner 1 and the outer shell 3. The vacuum layer 2 is a key component for heat insulation of the vacuum cup. Air is extracted from the vacuum layer, creating a vacuum state, which greatly reduces heat conduction and convection, effectively maintaining the temperature of the liquid in the inner liner. Whether it's hot water or cold drinks, the original temperature can be maintained for a longer period.

[0021] A stainless steel vacuum bottom layer 4 is welded to the bottom of the outer shell 3. A vacuum extraction position 5 is provided on the vacuum bottom layer 4 for extracting air from the vacuum layer 2. A vacuum solder layer 6 is provided on the vacuum bottom layer 4 to seal the vacuum extraction position 5. A stainless steel sealing layer 7 is also welded to the bottom of the outer shell 3, directly below the vacuum bottom layer 4. During production, air is extracted from the vacuum layer 2 using the vacuum extraction position 5 and specialized vacuum equipment to create a vacuum environment. The sealing vacuum solder layer 6 is then used to seal the vacuum environment, preventing air from re-entering and ensuring long-term stability of the vacuum state.

[0022] The outer shell 3 has a circular cross-section with a top diameter larger than the bottom diameter. Its shape, which is wider at the top and narrower at the bottom, makes it convenient for users to drink from, clean, and store food. At the same time, the narrow bottom reduces the risk of the center of gravity shifting, prevents tipping over, and enhances placement safety.

[0023] The sealing layer 7 not only seals the vacuum bottom layer 4, but also enhances the overall appearance of the vacuum cup. Through reasonable design and decoration, it achieves a more refined and aesthetically pleasing appearance while ensuring functionality, thereby improving the overall quality and appeal of the product.

[0024] This utility model features an open-mouth vacuum cup with a reasonable structural design that effectively achieves heat preservation and insulation functions, while also taking into account the product's durability and aesthetics, making it widely applicable in daily life.

[0025] Example 2

[0026] A double-walled vacuum cup includes an integrally formed inner liner 1 and an outer shell 3, both made of aluminum alloy. The top of the inner liner 1 and the top of the outer shell 3 are integrally connected, forming a vacuum layer 2 between them. An aluminum alloy vacuum bottom layer 4 is welded to the bottom of the outer shell 3. A vacuum extraction position 5 for extracting air from the vacuum layer 2 is provided on the vacuum bottom layer 4. A vacuum solder layer 6 for sealing the vacuum extraction position 5 is also provided on the vacuum bottom layer 4. An aluminum alloy sealing layer 7 is also welded to the bottom of the outer shell 3, directly below the vacuum bottom layer 4.

[0027] Example 3

[0028] A double-walled vacuum cup includes an integrally formed inner liner 1 and an outer shell 3, both made of pure titanium. The top of the inner liner 1 and the top of the outer shell 3 are integrally connected, forming a vacuum layer 2 between them. A pure titanium vacuum bottom layer 4 is welded to the bottom of the outer shell 3. A vacuum extraction position 5 for extracting air from the vacuum layer 2 is provided on the vacuum bottom layer 4. A vacuum solder layer 6 for sealing the vacuum extraction position 5 is provided on the vacuum bottom layer 4. A pure titanium sealing layer 7 is also welded to the bottom of the outer shell 3, directly below the vacuum bottom layer 4.

Claims

1. A double-walled vacuum cup, characterized in that, The device includes an integrally formed inner liner (1) and an outer shell (3). The top of the inner liner (1) and the top of the outer shell (3) are connected as one piece. A vacuum layer (2) is formed between the inner liner (1) and the outer shell (3). A vacuum bottom layer (4) is provided at the bottom of the outer shell (3). A vacuum extraction position (5) for extracting air from the vacuum layer (2) is provided on the vacuum bottom layer (4). A vacuum solder layer (6) for sealing the vacuum extraction position (5) is provided on the vacuum bottom layer (4). A sealing layer (7) is also provided at the bottom of the outer shell (3) and below the vacuum bottom layer (4).

2. The double-walled vacuum cup according to claim 1, characterized in that, The outer shell (3) has a circular cross-section and the top diameter is larger than the bottom diameter.

3. A double-walled vacuum cup according to claim 1, characterized in that, The inner liner (1), outer shell (3), vacuum bottom layer (4), and sealing layer (7) are all made of metal.

4. A double-walled vacuum cup according to claim 3, characterized in that, The vacuum bottom layer (4) is fixed to the outer shell (3) by welding.

5. A double-walled vacuum cup according to claim 3, characterized in that, The sealing layer (7) is fixed to the outer shell (3) by welding.

6. A double-walled vacuum cup according to claim 3, characterized in that, The metal material is specifically stainless steel, aluminum alloy, or pure titanium.

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