Double-layer heat-insulating vacuum cup
By using a double-layered insulating aerogel filling and a sealed lid design, the problem of rapid heat loss in single-layer insulated cups and insufficient sealing in traditional double-layered cups is solved, achieving efficient heat preservation and safe use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG HAOKE METAL PROD CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
The single-layer structure of existing thermos cups cannot meet the requirements for long-term heat preservation. Traditional double-layer thermos cups are complex to manufacture and are prone to heat preservation loss and insufficient sealing due to vacuum failure.
It adopts a double-layer structure, with insulating aerogel filling the space between the glass inner liner and the outer shell. The lid forms a double seal through threaded connection and sealing ring. The base adopts a foamed insulating interlayer, combined with an overflow baffle and anti-slip pad design to enhance sealing and stability.
It effectively reduces heat loss, improves insulation performance, and solves the problems of single-layer thermos cups getting too hot to handle and traditional double-layer cups not sealing properly, thus improving safety and convenience of use.
Smart Images
Figure CN224307109U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of thermos cup technology, and in particular relates to a double-walled heat-insulating thermos cup. Background Technology
[0002] A thermos is a water container made of ceramic or stainless steel with a vacuum layer. It has a lid that is tightly sealed. The vacuum insulation layer slows down the heat dissipation of the liquid inside, thus achieving the purpose of keeping it warm.
[0003] Currently, most thermos cups on the market are single-layer structures. Single-layer thermos cups are usually made of stainless steel or plastic. They slow down heat conduction by covering the outer surface of the cup with an insulation layer (such as silicone or sprayed material) or by setting a vacuum cavity at the rim. However, this cannot meet users' needs for long-term heat preservation and needs to be improved. Utility Model Content
[0004] The purpose of this application is to provide a double-walled insulated thermos cup that can solve the above-mentioned problems.
[0005] The purpose of this application is to provide a double-walled insulated thermos, comprising:
[0006] The cup body includes an outer shell, a protrusion on the outer shell, and a glass liner inside the outer shell, the protrusion having an opening;
[0007] The lid is located at the top of the cup body;
[0008] The base is located at the bottom of the cup body, and the base has an insulation layer inside;
[0009] The glass inner liner and the outer shell have a gap, which is filled with thermal insulation aerogel.
[0010] The aforementioned double-walled insulated thermos uses an outer shell that provides structural support and, together with the lid, forms a relatively enclosed space, reducing heat loss through the opening. The glass inner liner, as the main structure for holding the liquid, has material properties that reduce heat exchange between the liquid and the container walls, minimizing the possibility of heat conduction through the inner liner itself.
[0011] Meanwhile, the gap between the glass inner liner and the outer shell is filled with insulating aerogel, which effectively blocks the path of heat transfer through air conduction and convection. In existing technologies, single-layer insulated cups lack an effective heat insulation structure, allowing heat to be quickly conducted through the cup wall. While traditional double-layer insulated cups have a vacuum layer, their manufacturing is complex and prone to heat loss due to vacuum failure. The insulating aerogel filling in this application does not rely on complex vacuum processes, yet it forms a highly efficient heat insulation barrier, significantly reducing heat loss through conduction through the cup's side walls. It also avoids problems such as insufficient sealing and reduced vacuum caused by welding issues in traditional double-layer structures, improving overall heat insulation performance and solving the problem of single-layer insulated cups being too hot to hold.
[0012] Furthermore, the cup lid includes:
[0013] Cover;
[0014] A sealing head is located at the bottom of the cover. The diameter of the sealing head is smaller than the inner diameter of the opening, and a sealing ring is provided on the sealing head.
[0015] The cover and the protrusion are connected by threads.
[0016] The lid body is securely fixed to the cup body via a threaded connection with the protrusion, ensuring the overall airtightness of the cup. This threaded connection enhances the tightness of the connection between the lid and the cup body. Simultaneously, the sealing ring on the sealing head further strengthens the seal between the lid and the opening. When the lid is tightened, the sealing ring is compressed, effectively filling the tiny gaps between the sealing head and the opening, preventing hot air from escaping through these gaps and thus solving the problem of heat loss caused by a poorly sealed lid.
[0017] Furthermore, a sealing gasket is also provided on the contact portion between the cover and the protrusion.
[0018] By installing a sealing gasket between the lid and the raised contact area, a double sealing structure can be formed. On the basis of the threaded connection and the sealing ring, heat is further blocked from being transferred out from the contact area between the lid and the cup body, reducing heat loss at the cup mouth and resulting in better sealing and heat preservation.
[0019] Furthermore, the cup body is equipped with a tea strainer with a handle, and the bottom and side walls of the tea strainer are provided with multiple filter holes.
[0020] The built-in tea strainer inside the cup provides convenience for brewing tea, preventing tea leaves from directly mixing with water and allowing users to control the brewing time according to their needs. The handle on the tea strainer makes it easy for users to remove it from the cup at any time, making operation simple and convenient, and solving the problems of tea leaves being difficult to separate and cleaning after brewing in some existing thermos cups.
[0021] Furthermore, the cup body is also provided with an overflow baffle ring, which is located outside the protrusion and forms an overflow groove with the protrusion.
[0022] The overflow baffle on the cup body is located on the outside of the protrusion, and the overflow groove formed between the baffle and the protrusion can effectively block liquids that may overflow when pouring water, preventing liquids from flowing down the cup body and soiling the cup body or table. It can also protect the person pouring the water from being scalded by boiling water.
[0023] Furthermore, the insulation interlayer is made of foamed insulation material, and the curvature of the insulation interlayer is the same as that of the bottom of the glass liner.
[0024] The insulation layer uses foamed insulation material, whose porous structure effectively blocks heat transfer through solid conduction and air convection. Compared to traditional double-walled insulated cups that rely on a vacuum layer, foamed insulation material eliminates the need for complex vacuuming processes, reducing manufacturing complexity and preventing vacuum failure due to impacts or welding defects. Furthermore, the insulation layer shares the same curvature as the bottom of the glass liner, allowing for a tight fit and further enhancing insulation, effectively reducing heat loss from the bottom of the cup.
[0025] Furthermore, the base has multiple mounting slots at its bottom, and each mounting slot contains an anti-slip pad.
[0026] By creating multiple mounting slots on the bottom of the base and installing anti-slip pads inside, the friction between the thermos and the surface it is placed on can be increased. This effectively prevents the thermos from tipping over due to collisions or slight touches during use, solving the problem of unstable placement of the thermos and improving the safety and stability of its use.
[0027] The beneficial effects of this application are:
[0028] 1. Through the combination of the insulating aerogel between the glass inner liner and the outer shell, the foamed insulating layer of the base, and the double sealing structure of the cup lid, heat loss can be effectively reduced and the heat preservation performance can be improved.
[0029] 2. By installing a tea strainer, the tea strainer can easily brew tea and separate tea leaves, making it more convenient for users to brew and clean tea leaves;
[0030] 3. By installing an overflow baffle, it is possible to effectively prevent liquid from overflowing and causing scalding. Attached Figure Description
[0031] Figure 1 This is a schematic diagram of the structure of this utility model;
[0032] Figure 2 This is a schematic diagram of the structure of this utility model for removing the cup lid;
[0033] Figure 3This is a cross-sectional view of the present invention;
[0034] Figure 4 yes Figure 3 A magnified view of A in the middle.
[0035] The attached diagram is labeled as follows: 100, cup body; 110, outer shell; 120, protrusion; 121, opening; 130, glass inner liner; 140, thermal insulation aerogel; 200, cup lid; 210, lid body; 220, sealing head; 230, sealing ring; 240, sealing gasket; 300, base; 310, thermal insulation layer; 400, tea strainer; 410, handle; 420, filter hole; 500, overflow baffle ring; 510, overflow groove; 600, mounting groove; 610, anti-slip pad. Detailed Implementation
[0036] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.
[0037] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0038] The double-layer heat-insulating thermos cup provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.
[0039] Example Figures 1 to 4 :
[0040] like Figure 1 As shown in the figure, this application provides a double-walled insulated thermos cup, comprising:
[0041] The cup body 100 includes an outer shell 110, a protrusion 120 disposed on the outer shell 110, and a glass inner liner 130 located inside the outer shell 110. An opening 121 is provided on the protrusion 120.
[0042] The lid 200 is located at the top of the cup body 100;
[0043] The base 300 is located at the bottom of the cup body 100, and the base 300 has an insulation layer 310 inside;
[0044] A gap is provided between the glass inner liner 130 and the outer shell 110, and the gap is filled with thermal insulation aerogel 140.
[0045] In some embodiments of this application, such as Figure 1 As shown, in the above-mentioned double-walled insulated cup, the outer shell 110 of the cup body 100 provides support for the overall structure and, together with the lid 200, forms a relatively enclosed space, which can reduce heat loss from the opening 121. The glass inner liner 130 serves as the main structure for holding liquids, and its material properties can reduce heat exchange between the liquid and the container wall, reducing the possibility of heat conduction through the inner liner itself.
[0046] Meanwhile, the gap between the glass inner liner 130 and the outer shell 110 is filled with insulating aerogel 140, which effectively blocks the path of heat transfer through air conduction and convection. In the prior art, single-layer insulated cups lack an effective heat insulation structure, and heat is easily conducted through the cup wall. Although traditional double-layer insulated cups have a vacuum layer, they are complex to manufacture and prone to heat loss due to vacuum failure. The filling of insulating aerogel 140 in this application does not rely on complex vacuum processes, but can form a highly efficient heat insulation barrier, significantly reducing heat loss through conduction through the side wall of the cup body 100. At the same time, it avoids the problems of insufficient sealing and reduced vacuum caused by welding issues in traditional double-layer structures, improves the overall heat insulation performance, and also solves the problem of single-layer insulated cups being too hot to hold.
[0047] Example 2:
[0048] This application provides a double-walled insulated thermos cup. In addition to the above-mentioned technical features, the double-walled insulated thermos cup of this application also includes the following technical features.
[0049] like Figure 1 , Figure 3 and Figure 4 As shown, the cup lid 200 includes:
[0050] Cover 210;
[0051] A sealing head 220 is provided at the bottom of the cover 210. The diameter of the sealing head 220 is smaller than the inner diameter of the opening 121, and a sealing ring 230 is provided on the sealing head 220.
[0052] The cover 210 and the protrusion 120 are connected by threads.
[0053] In this embodiment, the lid 210 of the cup lid 200 is tightly fixed to the cup body 100 through a threaded connection with the protrusion 120, ensuring the overall sealing of the cup body 100. The threaded connection enhances the tightness of the connection between the lid 210 and the cup body 100. Simultaneously, the sealing ring 230 on the sealing head 220 further enhances the sealing effect between the cup lid 200 and the opening 121. When the cup lid 200 is tightened, the sealing ring 230 is compressed, effectively filling the tiny gap between the sealing head 220 and the opening 121, preventing hot air inside the cup from convecting and dissipating heat outwards through the gap, thus solving the problem of heat loss caused by an incomplete seal of the cup lid 200.
[0054] Furthermore, a sealing gasket 240 is provided on the contact portion between the cover 210 and the protrusion 120.
[0055] By installing a sealing gasket 240 between the contact portion of the lid 210 and the protrusion 120, a double sealing structure can be formed. On the basis of the threaded connection and the sealing ring 230, heat is further blocked from being transferred out from the contact portion between the lid 200 and the cup body 100, reducing heat loss at the cup mouth and resulting in better sealing and heat preservation.
[0056] Example 3:
[0057] This application provides a double-walled insulated thermos cup. In addition to the above-mentioned technical features, the double-walled insulated thermos cup of this application also includes the following technical features.
[0058] like Figure 2 and Figure 3 As shown, a tea strainer 400 is provided inside the cup body 100, a handle 410 is provided on the tea strainer 400, and multiple filter holes 420 are provided on the bottom and side wall of the tea strainer 400.
[0059] In this embodiment, the tea strainer 400 installed inside the cup body 100 provides convenience for brewing tea, avoiding direct mixing of tea leaves and water, and allowing users to control the brewing time according to their own needs. The handle 410 on the tea strainer 400 makes it easy for users to remove the tea strainer 400 from the cup body 100 at any time, which is simple and convenient and solves the problem of tea leaves being difficult to separate and cleaning after brewing tea in some existing thermos cups.
[0060] Example 4:
[0061] This application provides a double-walled insulated thermos cup. In addition to the above-mentioned technical features, the double-walled insulated thermos cup of this application also includes the following technical features.
[0062] like Figure 2 and Figure 4As shown, the cup body 100 is also provided with an overflow baffle ring 500, which is located outside the protrusion 120 and forms an overflow groove 510 with the protrusion 120.
[0063] In this embodiment of the application, the overflow baffle 500 on the cup body 100 is located outside the protrusion 120, and the overflow groove 510 formed between the cup body 100 and the protrusion 120 can effectively block the liquid that may overflow when pouring water, prevent the liquid from flowing down the cup body 100 and dirtying the cup body or table, and can also protect the person pouring water from being scalded by boiling water overflow.
[0064] Example 5:
[0065] This application provides a double-walled insulated thermos cup. In addition to the above-mentioned technical features, the double-walled insulated thermos cup of this application also includes the following technical features.
[0066] like Figure 3 As shown, the insulation interlayer 310 is a foamed insulation material, and the curvature of the insulation interlayer 310 is the same as that of the bottom of the glass inner liner 130.
[0067] In this embodiment, the insulation layer 310 is made of foamed insulation material, whose porous structure effectively blocks heat transfer through solid conduction and air convection. Compared to the vacuum layer relied upon in traditional double-walled insulated cups, the foamed insulation material eliminates the need for complex vacuuming processes, reducing manufacturing complexity and avoiding vacuum failure due to collisions or welding defects. Furthermore, the insulation layer 310 shares the same curvature as the bottom of the glass inner liner 130, allowing for a tight fit and further enhancing insulation, effectively reducing heat loss from the bottom of the cup body 100.
[0068] Furthermore, the base 300 has multiple mounting slots 600 on its bottom, and each mounting slot 600 is fitted with an anti-slip pad 610.
[0069] By opening multiple mounting slots 600 at the bottom of the base 300 and installing anti-slip pads 610 inside them, the friction between the thermos cup and the placement surface can be increased, which can effectively prevent the thermos cup from tipping over due to collision or slight touch during use, solve the problem of unstable placement of the thermos cup, and improve the safety and stability of use.
[0070] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
[0071] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.
Claims
1. A double-walled insulated thermos, characterized in that: include: The cup body (100) includes an outer shell (110), a protrusion (120) disposed on the outer shell (110) and a glass inner liner (130) located inside the outer shell (110), and the protrusion (120) is provided with an opening (121); A lid (200) is located at the top of the cup body (100); A base (300) is provided at the bottom of the cup body (100), and an insulation layer (310) is provided inside the base (300); Among them, a gap is provided between the glass inner liner (130) and the outer shell (110), and the gap is filled with thermal insulation aerogel (140); The cup lid (200) includes: Cover (210); A sealing head (220) is provided at the bottom of the cover (210). The diameter of the sealing head (220) is smaller than the inner diameter of the opening (121), and a sealing ring (230) is provided on the sealing head (220). The cover (210) and the protrusion (120) are connected by threads; A sealing gasket (240) is also provided on the contact part between the cover (210) and the protrusion (120); The cup body (100) is provided with a tea strainer (400), the tea strainer (400) is provided with a handle (410), and the bottom and side wall of the tea strainer (400) are provided with multiple filter holes (420). The cup body (100) is also provided with an overflow baffle ring (500), which is located outside the protrusion (120) and forms an overflow groove (510) with the protrusion (120); The insulation interlayer (310) is a foamed insulation material, and the curvature of the insulation interlayer (310) is the same as that of the bottom of the glass inner liner (130). The base (300) has multiple mounting slots (600) at its bottom, and each mounting slot (600) is equipped with an anti-slip pad (610).