Heat preservation container capable of being opened and closed in double modes
By using a double-layer lid design and a limit switch structure, the problems of cumbersome operation and insufficient insulation performance of traditional insulated containers are solved, achieving flexible opening and closing and efficient insulation, thereby improving user experience and product durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 厦门艾途瑞旅游用品有限公司
- Filing Date
- 2025-05-22
- Publication Date
- 2026-04-21
AI Technical Summary
Existing insulated container lid designs suffer from cumbersome operation, insufficient insulation performance, and poor sealing, failing to meet users' diverse needs in different scenarios.
The cover features a double-layer structure, combined with limit switches and double sealing rings, enabling dual-mode opening and closing, enhancing thermal insulation performance and improving sealing. High-frequency welding ensures connection strength and sealing.
It achieves a flexible opening and closing mechanism, improves thermal insulation performance, meets the usage needs of different scenarios, enhances ease of operation and safety, and extends product life.
Smart Images

Figure CN224146714U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of thermal insulation container technology, specifically relating to a thermal insulation container with dual-mode opening and closing. Background Technology
[0002] With the improvement of people's living standards and the increasing variety of outdoor activities, the demand for keeping food and beverages hot or cold is constantly growing, and the application scenarios of insulated containers have expanded to multiple fields such as daily life, outdoor travel, and medical transportation. Currently, most common insulated containers on the market consist of a body and a lid. In terms of the opening and closing structure design of the lid, traditional insulated containers have obvious defects: for lids that open and close completely, the lid must be completely removed when taking out a small number of items, which is not only cumbersome to operate, but also easy to lose the lid; some products with a single-sided opening design can achieve partial opening, but the opening angle is fixed, which cannot meet the diverse usage needs of users in different scenarios, such as difficulty in operation in confined spaces, or inability to fully open the lid to place larger items.
[0003] Regarding the optimization of thermal insulation performance, although most insulated containers achieve their insulation effect by filling the inside of the container with insulation material, the lid often becomes a key weak link in heat loss. Traditional lids are mostly single-layer structures, and their insulation performance is far inferior to that of the container body, failing to form an effective insulation system. Moreover, the seal between the lid and the container body is poor, allowing heat to escape quickly through gaps. This makes it difficult for insulated containers to achieve long-term, efficient heat preservation and cold retention effects, failing to meet users' requirements for the convenience and efficiency of insulated containers.
[0004] Therefore, developing a new type of insulated container with flexible opening and closing mechanisms and excellent thermal insulation performance is of great significance for solving existing technical problems, enhancing product market competitiveness, and improving user experience. Utility Model Content
[0005] In view of the problems and shortcomings of the existing technology, this utility model provides a dual-mode opening and closing insulated container. The double-layer structure of the lid and the limit switch design not only enhance the insulation performance of the lid itself, but also provide a structural basis for realizing dual-mode opening and closing. Compared with traditional insulated containers, it has significant improvements in insulation performance and opening and closing flexibility.
[0006] This utility model is achieved through the following technical solution:
[0007] A dual-mode opening and closing insulated container includes a barrel body, a lid base, and a lid. The barrel body comprises an inner barrel and an outer barrel, with a first filling space between the inner and outer barrels for filling with insulation material. The double-layer structure of the barrel body and the filled insulation material effectively reduce heat transfer and improve the insulation performance of the container. The lid base is installed on the top of the barrel body. Both the inner and outer barrels are sealed to the lid base using a high-frequency welding process. Limiting seats are fixed on both sides of the lid base. The top of the limiting seats has a slot, and the bottom inner side of the limiting seats has a limiting groove. The lid base and the barrel body are sealed to each other using a high-frequency welding process, ensuring the airtightness of the connection and preventing heat loss from the connection point. The lid consists of an inner lid and an outer lid, with a second filling space between them for filling with insulation material. Limit switches, which mate with limiting seats, are located on both sides of the outer lid. Each limit switch includes a support structure fixed to the underside of the outer lid, a fixing pin mounted to the support structure, and a switch plate sleeved on the fixing pin. A limiting protrusion mates with a limiting groove on the side of the switch plate closest to the lid seat. This double-layer structure and limit switch design not only enhance the lid's insulation performance but also provide a structural basis for dual-mode opening and closing, resulting in significant improvements in insulation performance and opening / closing flexibility compared to traditional insulated containers.
[0008] Furthermore, the insulated container features both a fully open and a partially open mode. In the fully open mode, both limit switches are detached from their respective limit seats, and the lid is separated from its seat. In the partially open mode, one limit switch is detached from its corresponding limit seat, while the other limit switch remains hinged to its corresponding limit seat. This dual-mode opening and closing structure significantly improves usability. When retrieving small items, the partially open mode can be used, eliminating the need to completely remove the lid, making operation convenient and preventing lid loss. When placing larger items or thoroughly cleaning the interior of the container, the fully open mode can be used, meeting diverse needs in different scenarios and effectively solving the problem of the single opening and closing method of traditional insulated containers.
[0009] Furthermore, a first sealing ring protrudes above the cover base. The first sealing ring can fill the gap between the cover body and the cover base when they are fastened together, enhance the sealing performance, reduce heat loss through the gap between the cover base and the cover body, and further improve the heat preservation and cold preservation effect of the insulated container.
[0010] Furthermore, a second sealing ring is provided at the bottom of the lid, which mates with the first sealing ring. When the lid is in the locked state, the second sealing ring compresses the first sealing ring, causing both the first and second sealing rings to deform. The two sealing rings cooperate and deform together, forming a tighter sealing structure. Compared to a single sealing ring, the sealing effect is significantly improved, effectively preventing heat conduction and convection, significantly improving the heat preservation performance of the insulated container, and extending the heat preservation and cold preservation time of food and beverages.
[0011] Furthermore, the slot includes a V-shaped guide groove and a cylindrical groove for accommodating the fixing pin. The shortest width of the V-shaped guide groove is equal to the diameter of the pin. The V-shaped guide groove guides the fixing pin, making the limit switch smoother during installation and opening / closing, and easier for the user to operate. The cylindrical groove provides a stable accommodating space for the fixing pin, ensuring the stability of the connection between the limit switch and the limit seat, reducing the shaking amplitude of the cover during opening and closing, and improving the reliability of the insulated container.
[0012] Furthermore, the surface of the switch dial is equipped with anti-slip texture. The anti-slip texture increases the friction of the switch dial surface, making it easier for users to operate the switch dial and less prone to slipping. Especially when hands are wet or cold, the cover can be easily opened and closed, improving the user experience.
[0013] Furthermore, carrying straps are attached to both sides of the lid base. These straps can rotate around the lid base and feature grips with anti-slip textures. The carrying straps are designed for easy carrying of insulated containers, meeting users' needs in various scenarios. The rotatable design allows the straps to be stored away when not in use, saving space. The anti-slip textures on the grips increase friction between the hand and the straps, making carrying the insulated container more comfortable and secure, preventing it from slipping out of the hand, and improving carrying safety.
[0014] Furthermore, the limit seat is fixed to the cover seat with screws. The screw fixing method is simple and reliable, easy to install and disassemble, and ensures the connection strength between the limit seat and the cover seat during the manufacturing process. It also facilitates the maintenance or replacement of the limit seat in the future, thus improving the maintainability of the product.
[0015] Furthermore, the bottom of the container features anti-slip protrusions made of silicone. These protrusions increase the friction between the insulated container and the surface it is placed on, making the container more stable and less prone to slipping. This is especially effective on smooth tabletops or inclined surfaces, preventing the container from tipping over and spilling its contents, thus improving safety during use.
[0016] Furthermore, the inner and outer covers are sealed and welded using a high-frequency welding process. This high-frequency process ensures a tight connection between the inner and outer covers, forming a good sealing structure that prevents heat loss from the gaps between them, further improving the thermal insulation performance of the cover. At the same time, this welding method also ensures the structural strength of the cover and extends its service life.
[0017] The beneficial effects of this utility model are:
[0018] 1. Flexible opening and closing: The dual-mode opening and closing structure meets the diverse needs of users in different scenarios. The half-opening mode makes it easy to take out a small number of items, while the fully opening mode is convenient for placing larger items or cleaning the inside of the container. Compared with traditional insulated containers, it is more convenient to operate and effectively solves the problem of a single opening and closing method.
[0019] 2. Excellent heat preservation: The double-layer structure of the container body and lid, along with the insulation material in the two filling spaces, combined with the double sealing ring structure between the lid seat and the lid body, forms a comprehensive heat preservation system, which greatly improves the heat preservation and cold preservation performance of the insulated container. It can keep the temperature of food and beverages for a long time, meeting the needs of users in various scenarios such as daily life and outdoor travel.
[0020] 3. Safe and reliable: The guiding and stabilizing function of the slot, the anti-slip design of the switch dial and the handle grip, and the anti-slip protrusions on the bottom of the container ensure the stability and safety of the insulated container during use and carrying, reducing the occurrence of accidents caused by improper operation or unstable placement.
[0021] 4. High durability: The extensive application of high-frequency welding technology (welding of the barrel body and lid, inner lid and outer lid) and reasonable structural design improve the connection strength and sealing of various components of the insulated container, enhance the durability of the product, extend the service life of the product, and reduce the user's operating costs. Attached Figure Description
[0022] Figure 1 This is a schematic diagram illustrating one embodiment of a dual-mode opening and closing insulated container of the present invention.
[0023] Figure 2 A cross-sectional view illustrating a schematic embodiment of a dual-mode opening and closing insulated container of the present invention.
[0024] Figure 3 Used to explain Figure 2 Enlarged view of a portion of point A in the middle;
[0025] Figure 4 A schematic structural diagram illustrating a cross-sectional view of a dual-mode opening and closing insulated container according to the present invention.
[0026] Figure 5 Used to explain Figure 4 Enlarged view of a portion of point B in the middle;
[0027] Figure 6 A schematic structural diagram illustrating a cross-sectional view of the barrel body and lid of this utility model;
[0028] Figure 7 Used to explain Figure 6 A magnified view of a portion of point C in the middle.
[0029] List of components and reference numerals:
[0030] 1. Barrel body; 11. Inner barrel; 12. Outer barrel; 13. First filling space; 14. Anti-slip protrusion; 2. Lid seat; 21. First sealing ring; 3. Limiting seat; 31. Slot; 311. V-shaped guide groove; 312. Columnar groove; 32. Limiting groove; 4. Lid body; 41. Inner cover; 42. Outer cover; 43. Second filling space; 44. Second sealing ring; 45. Handle rope; 451. Grip part; 5. Limit switch; 51. Support structure; 52. Fixing pin; 53. Switch lever; 531. Limiting protrusion; 6. Insulation material. Detailed Implementation
[0031] 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.
[0032] It should be noted that the directional terms such as left, right, up, down, front, and back in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, i.e., the direction of the product's movement, and should not be considered as limiting.
[0033] In addition, it should be noted that the dynamic terms such as "relative motion" mentioned in the embodiments of this utility model not only refer to changes in position, but also include movements such as rotation and rolling in which the position does not change relative to the position, but the state changes.
[0034] Finally, it should be noted that when a component is said to be "located on" or "set on" another component, it can be on the other component or may have an intervening component at the same time. When a component is said to be "connected to" another component, it can be directly connected to the other component or may have an intervening component at the same time.
[0035] like Figures 1 to 7 The diagram shows a dual-mode opening and closing insulated container. Through innovative structural design and material application, it effectively solves the problems existing in current insulated containers. The specific structure is as follows:
[0036] 1. Structure of the barrel body 1: The barrel body 1 is composed of an inner barrel 11 and an outer barrel 12. A first filling space 13 is formed between the inner barrel 11 and the outer barrel 12, which is used to fill the insulation material 6 to block heat transfer and achieve the function of heat preservation and cold preservation.
[0037] 2. Lid Base 2 Structure: The lid base 2 is installed on top of the barrel body 1. Both the inner barrel 11 and the outer barrel 12 are sealed and welded to the lid base 2 using a high-frequency welding process. This welding method ensures the tightness and sealing of the connection, preventing heat loss from the connection point. Limiting seats 3 are fixedly provided on both sides of the lid base 2. The top of the limiting seat 3 has a slot 31, and the inner side of the bottom has a limiting groove 32, which provides limiting and support for the installation and opening / closing of the lid body 4.
[0038] 3. Cover Body 4 Structure: The cover body 4 includes an inner cover 41 and an outer cover 42. A second filling space 43 is provided between the inner cover 41 and the outer cover 42, which is also used to fill the insulation material 6 to further improve the insulation performance of the cover body 4. Limit switches 5 are provided on both sides of the outer cover 42. The limit switches 5 include a support structure 51 fixed below the outer cover 42, a fixing pin 52 installed on the support structure 51, and a switch plate 53 sleeved on the fixing pin 52. The switch plate 53 has a limiting protrusion 531 that cooperates with the limiting groove 32 on the side near the cover seat 2. Through the cooperation of the limit switch 5 and the limiting seat 3, the dual-mode opening and closing of the cover body 4 can be realized.
[0039] Example 1: Use during outdoor travel
[0040] In outdoor travel scenarios, users carry food and drinks in insulated containers. Before departure, food and drinks are placed separately in the inner container 11, and the internal space of the inner container 11 is used to arrange the items reasonably. Because the inner container 11 is made of food-grade 316L stainless steel, it has excellent corrosion resistance and can ensure the safe storage of food and drinks.
[0041] During travel, when users need to retrieve some food or drinks, the half-open lid mode allows for quick and convenient access while maintaining the container's seal to minimize heat exchange and preserve the temperature of the food and drinks inside. Upon arrival at a rest stop, when more items need to be retrieved or the container needs to be organized, the full-open lid mode allows for complete opening of the lid for easy operation.
[0042] During transport, users can carry the insulated container by the handle 45, whose rotatable design allows it to adapt to different carrying postures. A hidden hook allows the container to be hung on a backpack, freeing up the user's hands for other activities. Furthermore, the fingerprint-resistant coating on the outer cover 42 prevents the container from easily attracting fingerprints and stains when used outdoors, maintaining a clean appearance.
[0043] In the varied outdoor environment, the anti-slip base and anti-slip protrusions 14 at the bottom of the container 1 ensure that the insulated container is placed stably on various ground surfaces (such as grass, rocks, etc.). Even if it is subjected to slight impacts or wind, it is not easy to tip over, thus ensuring the safety of the contents. At the same time, the cushioning pad between the lid 2 and the container 1 reduces the impact force when the lid 4 is closed, reduces collision noise, and does not disturb the surrounding environment.
[0044] Example 2: Use in medical transportation
[0045] In medical transportation scenarios, medical personnel need to use insulated containers to transport temperature-sensitive biological products such as vaccines. Before departure, a special refrigerated box containing the vaccine is placed in the inner barrel 11 of the insulated container. The high-efficiency insulation material 6 filling the space between the inner barrel 11 and the outer barrel 12, and between the inner lid 41 and the outer lid 42, as well as the sealing structure formed by the double sealing rings, creates a stable low-temperature environment.
[0046] During transportation, if it is necessary to check the condition of the vaccine, medical staff do not need to fully open the lid 4. They only need to turn on the switch 53 on one side to put the insulated container in a half-open mode, and carefully open one side gap to check the condition of the refrigerated box. This operation method can minimize the entry of external heat, maintain the stability of the internal low temperature environment, and ensure that the vaccine activity is not affected.
[0047] When the transport arrives at its destination and the vaccine needs to be retrieved, the two side switch levers 53 can be toggled to switch to the fully open lid mode, allowing the lid 4 to be completely removed for easy and quick vaccine retrieval. Throughout the transport process, the anti-slip protrusions 14 on the bottom of the container 1 ensure that the insulated container will not slide due to bumps during vehicle travel, preventing the internal vaccine from being damaged by impact; the carrying rope 45 facilitates the movement of the insulated container by medical personnel, and the anti-slip texture of the grip 451 ensures safety during handling.
[0048] Example 3: Use in school life
[0049] Students use this insulated container to carry their lunch and hot water at school. In the morning, they put the food into the inner container 11, pour hot water into the matching cup, place it in the appropriate position in the inner container 11, and then fasten the lid 4. The double sealing rings fit tightly to ensure the container's airtightness.
[0050] During lunchtime, if students only want to drink hot water first, they can easily flip one side switch 53 to open one side of the lid 4 in a half-open mode, take out the cup and drink the hot water, without having to fully open the lid 4 to prevent the food from losing heat too quickly. When it's time to eat the food, they can then flip the other side switch 53 to switch to the fully open mode and take out the food completely.
[0051] When students carry insulated containers to the classroom or playground during breaks, they can lift the containers using the handle 45. The rotatable handle 45 allows for flexible angle adjustment, and the non-slip texture of the grip 451 ensures a firm grip even when running or with sweaty hands, preventing the containers from falling. The non-slip protrusions 14 on the bottom of the container 1 ensure that the containers will not easily slide when placed on a desk, and will remain stable even if the desk is slightly tilted, preventing food from spilling.
[0052] The above description is merely an embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this application should be included within the scope of the claims of this application.
Claims
1. A dual mode open-close thermally insulated container, characterized in that, include: The barrel body includes an inner barrel and an outer barrel, and a first filling space for filling insulation material is provided between the inner barrel and the outer barrel; The cover is installed on the top of the barrel body. The inner barrel and the outer barrel are sealed and welded to the cover by a high-frequency process. Limiting seats are fixed on both sides of the cover. The top of the limiting seat is provided with a slot and the bottom inner side of the limiting seat is provided with a limiting groove. The cover body includes an inner cover and an outer cover. A second filling space for filling with thermal insulation material is provided between the inner cover and the outer cover. Limit switches that cooperate with the limiting seat are provided on both sides of the outer cover. The limit switches include a support structure fixed to the lower part of the outer cover, a fixing pin installed to the support structure, and a switch plate sleeved on the fixing pin. The side of the switch plate near the cover seat has a limiting protrusion that cooperates with the limiting groove.
2. A dual mode openable thermally insulated container according to claim 1, characterized in that The insulated container has a fully open lid mode and a half-open lid mode. When the insulated container is in the fully open lid mode, both limit switches are separated from the limit seats, and the lid is separated from the lid seat. When the insulated container is in the half-open lid mode, one limit switch is separated from its corresponding limit seat, while the other limit switch remains in a hinged fixed state with its corresponding limit seat.
3. A dual mode open-close thermally insulated container according to claim 1, characterized in that, A first sealing ring protrudes from the top of the cover.
4. A dual mode openable thermally- insulated container according to claim 3, wherein, The bottom of the cover is provided with a second sealing ring that cooperates with the first sealing ring. When the cover is in the fastened state, the second sealing ring squeezes the first sealing ring so that both the first and second sealing rings are deformed by compression.
5. The dual mode open and close thermally insulated container of claim 1, wherein, The slot includes a V-shaped guide groove and a cylindrical groove for accommodating the fixing pin, wherein the shortest width of the V-shaped guide groove is equal to the diameter of the pin.
6. A dual mode openable thermally- insulated container according to claim 1, wherein, The surface of the switch dial is provided with anti-slip texture.
7. A dual mode openable thermally- insulated container according to claim 1, wherein, The cover is connected to two sides with carrying ropes that can rotate around the cover. The carrying ropes are provided with grips and the surface of the grips has anti-slip textures.
8. A dual mode openable thermally- insulated container according to claim 1, wherein, The limiting seat is fixed to the cover seat by screws.
9. The dual mode open and close thermally insulated container of claim 1, wherein, The bottom of the barrel is provided with anti-slip protrusions, which are made of silicone.
10. The dual mode open and close thermally insulated container of claim 1, wherein, The inner cover and the outer cover are sealed and welded using a high-frequency process.