Heat insulation cup cover
By incorporating an inner and outer heat-insulating cavity and a double-sealing structure within the thermos lid, the problem of poor heat insulation in the lid is solved, resulting in better heat preservation performance and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI KANGCHEN NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-05-19
AI Technical Summary
The lids of existing thermos cups have poor heat insulation, causing hot water to exchange heat with the outside environment through the lid, reducing heat retention performance and potentially scalding the user.
Design a heat-insulating cup lid that uses an inner and outer shell structure to form a heat-insulating cavity, and fills the cavity with heat-insulating material. At the same time, it uses a sealing ring and heat-insulating silicone for double heat insulation. The outer shell and inner shell are fixedly connected by a locking mechanism to prevent heat transfer.
It effectively isolates the heat from hot water from being transferred to the outer wall of the lid, improving heat retention, preventing burns to the user, and enhancing the heat insulation effect of the lid.
Smart Images
Figure CN224251122U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermos cup technology, specifically to a heat-insulating thermos cup lid. Background Technology
[0002] A thermos is a cup that can keep water warm. It is generally made of ceramic or stainless steel with a vacuum layer. It is a container for holding water and has a lid that is tightly sealed. The vacuum insulation layer can slow down the heat dissipation of the water or other liquids inside, so as to achieve the purpose of keeping the water warm. When using a thermos, the lid needs to be used to seal the opening of the thermos.
[0003] Existing thermos cups use ceramic or stainless steel with a vacuum layer for insulation, but the lid has poor insulation. When the user moves around with the thermos cup, hot water comes into contact with the lid, and the hot water exchanges heat with the outside through the lid, causing heat loss. This not only easily burns the user but also reduces the thermos cup's insulation performance, making it inconvenient to use. Therefore, we have proposed a heat-insulating thermos cup lid to solve the problems mentioned. Utility Model Content
[0004] The purpose of this invention is to provide a heat-insulating cup lid to solve the problems currently existing in the market as mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat-insulating thermos lid, comprising an outer shell, an inner shell installed on the inner side of the outer shell, and a heat-insulating cavity formed between the outer shell and the inner shell, wherein...
[0006] A sealing ring is integrally fixedly connected to the outer bottom of the inner shell, and the outer shell and the sealing ring are sealed together by a first sealing gasket. The inner wall of the inner shell is provided with threads, and a ring frame is integrally fixedly connected to the top inner side of the inner shell.
[0007] Sealing rings are installed at equal intervals on the outer side of the ring frame, and heat-insulating silicone is installed on the inner wall of the ring frame. The outer shell and the inner shell are fixedly connected by a snap-fit mechanism. A second sealing gasket is provided on the top inner side of the inner shell near the ring side of the ring frame.
[0008] Preferably, the interior of the heat insulation cavity is filled with foamed heat insulation material through filling holes.
[0009] Preferably, the outer wall of the annular frame is sealed to the inner wall of the thermos cup opening via a sealing ring.
[0010] Preferably, the locking mechanism includes a mounting ring, the top of the inner shell is fixedly connected to the mounting ring, the bottom of the outer shell is fixedly connected to the mounting ring, the mounting post is symmetrically provided with locking slots on both sides of the mounting post, the mounting ring is provided with a locking groove on the inner wall of the locking slot, a spring is installed inside the locking slot, and a locking block is installed on the side of the spring near the opening of the locking slot.
[0011] Preferably, the lower part of the locking block away from the spring is an inclined surface.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] This invention, after the lid is connected to the thermos via threads, simultaneously connects the annular frame to the inner wall of the thermos rim via a sealing ring. This prevents hot water from contacting the rim of the thermos when it is tilted. Insulating silicone prevents heat from being transferred from the hot water to the rim via the annular frame, thus reducing the temperature of the side wall at the rim. The lid connects to the side wall at the rim, forming a first layer of insulation. The outer and inner shells form an insulating cavity, which is filled with insulating material to create a second layer of insulation. This double insulation design effectively prevents hot water from transferring heat to the outer wall of the lid, reducing heat loss, improving the thermos's insulation performance, and preventing users from being burned by the lid.
[0014] In this invention, when assembling the outer shell and the inner shell, the outer shell is fitted over the outer side of the inner shell. At the same time, the outer shell drives the mounting post to insert into the mounting ring. When the inclined surface of the locking block abuts against the mounting ring, the locking block retracts into the locking block groove against the spring force. After the locking block groove and the locking slot are aligned, the spring pushes the locking block into the locking slot, thus completing the fixed connection between the outer shell and the inner shell (there is no need to disassemble the outer shell and the inner shell after assembly, so there is no need to consider disassembly). Heat is prevented from being transferred to the outer shell through the locking structure by heat-insulating silicone. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;
[0017] Figure 3 This utility model Figure 2 A magnified view of the structure at point A in the middle;
[0018] Figure 4 This utility model Figure 2 A magnified schematic diagram of the structure at point B in the middle.
[0019] In the diagram: 1. Outer shell; 2. Inner shell; 3. Insulation cavity; 4. Sealing ring; 5. Filling hole; 6. First sealing gasket; 7. Thread; 8. Ring frame; 9. Sealing ring; 10. Insulation silicone; 11. Mounting ring; 12. Mounting post; 13. Locking slot; 14. Locking groove; 15. Spring; 16. Locking block; 17. Second sealing gasket. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a heat-insulating thermos lid, including an outer shell 1, an inner shell 2 installed on the inner side of the outer shell 1, and a heat-insulating cavity 3 formed between the outer shell 1 and the inner shell 2, wherein...
[0022] A sealing ring 4 is integrally fixedly connected to the outer bottom of the inner shell 2. The outer shell 1 and the sealing ring 4 are sealed together by a first sealing gasket 6. The inner wall of the inner shell 2 is provided with threads 7. A ring frame 8 is integrally fixedly connected to the top inner side of the inner shell 2.
[0023] A sealing ring 9 is installed at equal intervals on the outer side of the ring frame 8. A heat-insulating silicone 10 is installed on the inner wall of the ring frame 8. The outer shell 1 and the inner shell 2 are fixedly connected by a snap-fit mechanism. A second sealing gasket 17 is provided on the top inner side of the inner shell 2 near the ring side of the ring frame 8.
[0024] After the lid is connected to the thermos via the thread 7, the ring frame 8 is simultaneously sealed to the inner wall of the thermos rim via the sealing ring 9. This prevents hot water from contacting the rim of the thermos when it is tilted. The heat-insulating silicone 10 prevents the hot water from transferring heat to the rim via the ring frame 8, thereby reducing the temperature of the side wall at the rim. The lid is connected to the side wall at the rim, forming the first layer of heat insulation. The heat-insulating cavity 3 formed by the outer shell 1 and the inner shell 2, filled with heat-insulating material, forms the second layer of heat insulation. The lid structure in this design, with its two layers of heat insulation, effectively prevents hot water from transferring heat to the outer wall of the lid, thereby reducing heat loss, improving the thermos's heat preservation performance, and preventing users from being burned by the lid.
[0025] Please see Figures 1 to 4The heat insulation cavity 3 is filled with foamed heat insulation material through the filling hole 5. The outer wall of the ring frame 8 is sealed to the inner wall of the cup mouth of the thermos cup through the sealing ring 9. The heat insulation cavity 3 formed by the outer shell 1 and the inner shell 2 is sealed by the first sealing gasket 6. After the heat insulation material is injected through the filling hole 5, the opening of the filling hole 5 is sealed (for example, by sealing with a glue nail).
[0026] Please see Figures 1 to 4 The locking mechanism includes a mounting ring 11. The top of the inner shell 2 is fixedly connected to the mounting ring 11, and the bottom inner side of the outer shell 1 is fixedly connected to the mounting post 12 corresponding to the mounting ring 11. The mounting post 12 has symmetrical locking slots 13 on both sides. The mounting ring 11 has a locking groove 14 on the inner wall corresponding to the locking slot 13. A spring 15 is installed inside the locking slot 13. A locking block 16 is installed on the side of the spring 15 near the opening of the locking slot 13. The lower part of the locking block 16 away from the spring 15 is an inclined surface. When the outer shell 1 and the inner shell 2 are assembled, the outer shell 1 fits inside the inner shell 2. On the outside of shell 2, the outer shell 1 drives the mounting post 12 to insert into the mounting ring 11. When the inclined surface of the locking block 16 abuts against the mounting ring 11, the locking block 16 overcomes the elastic force of the spring 15 and retracts into the inside of the locking block groove 13. After the locking block groove 13 and the locking groove 14 are aligned, the spring 15 pushes the locking block 16 into the inside of the locking groove 14, thus completing the fixed connection between the outer shell 1 and the inner shell 2 (there is no need to disassemble the outer shell 1 and the inner shell 2 after assembly, so there is no need to consider disassembly), and the heat insulation silicone 10 prevents heat from being transferred to the outer shell 1 through the locking structure.
[0027] Working Principle: This heat-insulating thermos lid connects to the thermos via threads 7, and simultaneously, the annular frame 8 seals the inner wall of the thermos rim via a sealing ring 9. This prevents hot water from contacting the rim of the thermos when it is tilted. The heat-insulating silicone 10 prevents heat transfer from the hot water to the rim via the annular frame 8, thus reducing the temperature of the side wall at the rim. The lid's connection to the side wall at the rim creates a first layer of insulation. The heat-insulating cavity 3 formed by the outer shell 1 and inner shell 2, filled with heat-insulating material, creates a second layer of insulation. This dual insulation design effectively prevents hot water from transferring heat. The heat is transferred to the outer wall of the lid, thereby reducing heat loss, improving the heat preservation performance of the thermos, and preventing the user from being burned by the lid. When the outer shell 1 and the inner shell 2 are assembled, the outer shell 1 is placed on the outside of the inner shell 2. At the same time, the outer shell 1 drives the mounting post 12 to insert into the mounting ring 11. When the inclined surface of the locking block 16 abuts against the mounting ring 11, the locking block 16 overcomes the elastic force of the spring 15 and retracts into the locking block groove 13. After the locking block groove 13 and the locking slot 14 are aligned, the spring 15 pushes the locking block 16 into the locking slot 14, thus completing the fixed connection between the outer shell 1 and the inner shell 2 (there is no need to disassemble the outer shell 1 and the inner shell 2 after assembly, so there is no need to consider disassembly). The heat insulation silicone 10 prevents heat from being transferred to the outer shell 1 through the locking structure.
[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A heat-insulating thermos lid, comprising an outer shell (1), characterized in that: An inner shell (2) is installed on the inner side of the outer shell (1), and a heat-insulating cavity (3) is formed between the outer shell (1) and the inner shell (2), wherein, A sealing ring (4) is integrally fixedly connected to the outer side of the bottom end of the inner shell (2). The outer shell (1) and the sealing ring (4) are sealed together by a first sealing gasket (6). The inner wall of the inner shell (2) is provided with a thread (7). A ring frame (8) is integrally fixedly connected to the top of the inner side of the inner shell (2). Sealing rings (9) are installed at equal intervals on the outer side of the ring frame (8), and heat-insulating silicone (10) is installed on the inner wall of the ring frame (8). The outer shell (1) and the inner shell (2) are fixedly connected by a snap-fit mechanism. A second sealing gasket (17) is provided on the top inner side of the inner shell (2) near the ring side of the ring frame (8).
2. The heat-insulating cup lid according to claim 1, characterized in that: The heat insulation cavity (3) is filled with foamed heat insulation material through filling holes (5).
3. The heat-insulating cup lid according to claim 1, characterized in that: The outer wall of the ring frame (8) is sealed to the inner wall of the thermos cup opening through a sealing ring (9).
4. The heat-insulating cup lid according to claim 1, characterized in that: The locking mechanism includes a mounting ring (11), the top of the inner shell (2) is fixedly connected to the mounting ring (11), the bottom of the outer shell (1) is fixedly connected to the mounting post (12) corresponding to the mounting ring (11), the mounting post (12) is symmetrically provided with locking block grooves (13) on both sides, the mounting ring (11) is provided with a locking groove (14) corresponding to the inner wall of the locking block groove (13), a spring (15) is installed inside the locking block groove (13), and a locking block (16) is installed on the side of the spring (15) near the opening of the locking block groove (13).
5. The heat-insulating cup lid according to claim 4, characterized in that: The lower part of the block (16) away from the spring (15) is an inclined surface.