Coffee cup cover with rotary opening structure and optimized heat preservation design

Abstract

The utility model relates to the technical field of coffee cups, in particular to a coffee cup cover with a rotary opening structure and an optimized heat preservation design, which comprises an upper cover and a lower cover, the upper cover is connected with the lower cover through threads, the upper cover comprises an outer rotary cover and an inner rotary cover which are mutually buckled and connected, and a foam pad for heat preservation is hidden in the inner rotary cover. Two waterproof silica gel parts are arranged on the inner screw cap in a sleeving manner; the lower cover comprises an inner plug cover and an inner plug outer ring which are connected in a buckled mode, and the inner plug cover is sleeved with a waterproof silica gel part. According to the coffee cup cover with the rotary opening structure and the optimized heat preservation design, by means of the innovative opening mode that the outer rotary cover is rotated by 180 degrees to enable the arc-shaped opening to be aligned with the drinking opening of the inner plug cover, the defects that a traditional rotary cover needs to be integrally screwed out, the safety problem is easily caused by cover bouncing operation, and the leakage prevention of a flip cover is poor are overcome. A user can quickly open the drinking opening only by simply rotating the outer screw cap, and the operation is simple, convenient and efficient when drinks are taken for multiple times.

Description

A coffee cup lid with a rotating opening mechanism and optimized heat preservation design Technical Field

[0001] This utility model relates to the field of coffee cup technology, specifically to a coffee cup lid with a rotating opening structure and optimized heat preservation design. Background Technology

[0002] In the field of coffee cup technology, the design of coffee cup lids directly affects the user experience. Currently, common coffee cup lids on the market suffer from problems such as inconvenient opening, poor heat retention, and inadequate leak prevention.

[0003] Taking the coffee cup lid disclosed in patent application number 201711399608.6 as an example, this coffee cup lid includes a lid body with a liquid outlet on the top edge of the lid body. The top surface is inclined towards the liquid outlet, and a converging groove structure is formed around the perimeter, allowing drinking without opening the lid, which improves the convenience of drinking to some extent. However, this coffee cup lid still has many shortcomings. First, although it does not require fully opening the lid to drink, in actual use, if the user wants to clean the inside of the lid or add beverage, the entire lid still needs to be disassembled, which is cumbersome. Second, this structure only focuses on drinking convenience and does not optimize the heat preservation performance. Heat is easily lost quickly in the lid area, making it difficult to maintain the temperature of the beverage for a long time. Third, relying solely on the inclined top surface and the converging groove structure for leak prevention, when the cup is violently shaken, inverted, or collided during transportation, the beverage may still leak from the liquid outlet or the connection between the lid and the cup body, limiting the leak prevention effect.

[0004] In addition, traditional coffee cup lids, such as screw-on lids, require unscrewing the entire lid, which is extremely inconvenient when taking out drinks multiple times; flip-top lids cause water to splash and make a loud noise when opening hot drinks; and flip-top lids have poor leak-proof performance. These problems make it difficult for existing coffee cup lids to meet users' multiple needs for convenience, heat preservation and leak prevention. Summary of the Invention

[0005] The purpose of this invention is to provide a coffee cup lid with a rotating opening structure and optimized heat preservation design, in order to solve the problem mentioned in the background art that relying solely on the inclined top surface and the gathering groove structure for leak prevention, when the cup is subjected to violent shaking, inversion, or collision during transportation, the beverage may still leak from the outlet or the connection between the lid and the cup body, thus limiting the leak prevention effect.

[0006] To achieve the above objectives, this utility model provides a coffee cup lid with a rotating opening structure and optimized heat preservation design, including an upper lid and a lower lid. The upper lid and the lower lid are connected by threads. The upper lid includes an outer screw cap and an inner screw cap that are interlocked. The inner screw cap contains a foam pad for heat preservation and is fitted with two silicone components for waterproofing. The lower lid includes an inner stopper cap and an inner stopper outer ring that are interlocked. The inner stopper cap is fitted with a silicone component for waterproofing. An arc-shaped opening is provided on one side of the outer screw cap, and a drinking spout is provided on one side of the inner stopper cap. The outer screw cap can be rotated 180° to rotate the arc-shaped opening to the drinking spout, thereby opening the drinking spout. The bottom of the lower lid is provided with a flow-limiting hole.

[0007] This design features a screw-on connection between the top and bottom lids, allowing for easy assembly and disassembly of the entire cup lid. In the top lid, the outer and inner screw caps are snapped together for easy installation and fixation. The inner screw cap contains a foam pad for insulation, and two silicone components cover it for waterproofing. In the bottom lid, the inner stopper cap and its outer ring are snapped together, and a silicone component covers the inner stopper cap for waterproofing. The curved opening of the outer screw cap aligns with the drinking spout of the inner stopper cap; rotating the outer screw cap 180° aligns them to open the drinking spout. A flow-limiting hole at the bottom of the bottom lid controls the liquid flow. The overall structural design comprehensively considers opening, insulation, waterproofing, and liquid flow control, forming a complete coffee cup lid technical solution.

[0008] Preferably, the inner wall of the outer cap is provided with a slot, and the upper outer wall of the inner cap is provided with a locking block, with the slot and the locking block engaging in a locking fit.

[0009] This design features a slot on the inner wall of the outer cap that engages with a block on the upper outer wall of the inner cap. This engagement structure is based on the principle of mechanical snap-fit, utilizing the shape adaptation and elastic deformation of the slot and the block to achieve a tight connection and relative fixation between the outer and inner caps, ensuring that they will not easily detach during the rotation and opening process.

[0010] Preferably, the silicone component on the inner screw cap includes a first silicone ring and a second silicone ring, and annular grooves are provided on the outer side of the inner screw cap, with the first silicone ring and the second silicone ring respectively engaged in the two annular grooves.

[0011] This design features annular grooves on the upper and lower sides of the inner screw cap. The first and second silicone rings are respectively secured in the annular grooves. Utilizing the elasticity of the silicone and the limiting effect of the annular grooves, the silicone rings are tightly fitted to the outer side of the inner screw cap, forming two waterproof sealing lines to prevent beverages from leaking out from the connection between the inner screw cap and other components.

[0012] Preferably, the silicone component on the inner plug cover includes a third silicone ring.

[0013] This feature includes a third silicone ring fitted onto the inner cap. Based on the elastic sealing principle of silicone, the third silicone ring fits tightly with the inner cap and related components, forming a seal at the connection point to prevent beverages from leaking out from the gaps in the lower cap.

[0014] Preferably, the outer cap has an inclined surface on its side, and the arc-shaped opening is located on the inclined surface.

[0015] This design features an inclined surface on the side of the screw cap, with an arc-shaped opening on the inclined surface. This design makes it easy to rotate the inner cap's drinking spout to expose the spout, allowing the mouth to be aligned with the inner cap's drinking spout for easy consumption.

[0016] Preferably, the inner screw cap is symmetrically equipped with locking blocks on both sides, and the inner walls of the inner plug cap are symmetrically provided with locking positions. When the upper cover drives the inner screw cap to rotate 180°, the locking blocks and locking positions can cooperate to achieve a limiting effect.

[0017] This setting includes a locking mechanism. When the lid is rotated 180°, the locking mechanism will produce a "click" sound, indicating that the drinking spout has been opened.

[0018] Preferably, the bottom of the inner plug is provided with two circular flow-limiting ports.

[0019] This flow limiter is designed to restrict the flow of drinking water and prevent scalding from excessive water flow.

[0020] Preferably, the inner screw cap has a protrusion on its lower interior for limiting the foam pad, and the inner plug cap has an annular groove on its outer bottom, with the third silicone ring fitting into the annular groove.

[0021] The inner screw cap has a protrusion at the bottom to restrict the position of the foam pad, preventing it from shifting or deforming during use and ensuring the insulation effect. The inner plug cap has an annular groove on the bottom outer side, and the third silicone ring is stuck in the annular groove to fix the position of the silicone ring and enhance the sealing effect. Based on the principles of mechanical limiting and elastic sealing, it ensures the stable operation of each component.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] This coffee cup lid features a rotating opening mechanism and optimized insulation design. Its innovative opening method, where the outer cap rotates 180° to align the curved opening with the inner stopper's drinking spout, overcomes the drawbacks of traditional screw caps that require complete unscrewing, pop-top caps which can pose safety risks, and flip-top caps that are less leak-proof. Users can quickly open the drinking spout by simply rotating the outer cap. This convenient and efficient operation makes it ideal for frequent coffee consumption in the office or for on-the-go use, greatly enhancing usability.

[0024] The inner screw cap features a built-in foam pad, filling a gap in insulation in the lid area. The high-density foam effectively blocks heat transfer, forming a more comprehensive insulation system in conjunction with the overall lid structure. Compared to existing coffee lids that rely solely on a simple seal or a single insulation structure, this coffee lid allows beverages to maintain a suitable temperature for a longer period; for example, hot coffee can remain at a good temperature for 2-3 hours, meeting users' temperature preferences.

[0025] The combination of multiple silicone components, including the first and second silicone rings on the inner screw cap and the third silicone ring on the inner stopper cap, along with precise snap-fit ​​and threaded connections between the components, forms a multi-layered sealing structure. Simultaneously, a flow-limiting hole at the bottom of the inner stopper cap further prevents beverage leakage. Even under complex conditions such as violent shaking, inversion, or transport collisions, it effectively prevents beverages from leaking from the spout or the connection between the lid and the cup body, solving the problem of poor leak prevention in traditional coffee cup lids.

[0026] The outer and inner screw caps are secured by a locking mechanism using slots and blocks, and the inner stopper cap and its outer ring are connected by a snap-fit ​​mechanism, ensuring a stable and secure connection between the coffee cup lid components. This snap-fit ​​and locking connection method also facilitates disassembly and cleaning of the lid's interior, making it simple and convenient to add beverages or perform cleaning, thus enhancing the practicality and durability of the coffee cup lid. Attached Figure Description

[0027] Figure 1 is one of the overall structural schematic diagrams of this utility model;

[0028] Figure 2 is one of the overall structural schematic diagrams of this utility model;

[0029] Figure 3 is a schematic diagram of the exploded structure of this utility model;

[0030] Figure 4 is an exploded structural diagram of the upper cover in this utility model;

[0031] Figure 5 is an exploded structural diagram of the lower cover in this utility model;

[0032] Figure 6 is a schematic diagram of the internal structure of the upper cover in this utility model;

[0033] Figure 7 is a schematic diagram of the internal structure of the lower cover in this utility model;

[0034] The meanings of the labels in the diagram are as follows:

[0035] 1. Top cover; 11. Outer screw cap; 111. Inclined surface; 112. Arc-shaped opening; 12. Foam pad; 13. First silicone ring; 14. Inner screw cap; 141. Locking block; 15. Second silicone ring; 2. Bottom cover; 21. Inner stopper cap; 211. Locking position; 212. Drinking spout; 22. Inner stopper outer ring; 23. Third silicone ring. Detailed Implementation

[0036] 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.

[0037] This utility model provides a coffee cup lid with a rotating opening structure and optimized heat preservation design, as shown in Figures 1, 2, 3, 4, 5, 6, and 7. It includes an upper lid 1 and a lower lid 2. The lower lid 2 is threadedly connected to the mouth of the coffee cup. The upper lid 1 and the lower lid 2 are threadedly connected. The upper lid 1 includes an outer screw cap 11 and an inner screw cap 14 that are interlocked. The inner screw cap 14 contains a foam pad 12 for heat preservation and is fitted with two silicone components for waterproofing. The lower lid 2 includes an inner stopper cap 21 and an inner stopper outer ring 22 that are interlocked. The inner stopper cap 21 is fitted with a silicone component for waterproofing. An arc-shaped opening 112 is provided on one side of the outer screw cap 11, and a drinking spout 212 is provided on one side of the inner stopper cap 21. The outer screw cap 11 can be rotated 180° to rotate the arc-shaped opening 112 to the drinking spout 212, thereby opening the drinking spout 212. The bottom of the lower lid 2 is provided with a flow-limiting hole.

[0038] The upper lid 1 and lower lid 2 are connected by threads, enabling the assembly and disassembly of the entire cup lid. In the upper lid 1, the outer screw cap 11 and the inner screw cap 14 are snapped together for easy installation and fixation. The inner screw cap 14 contains a foam pad 12 for heat preservation, and two silicone components are fitted onto the inner screw cap 14 for waterproofing. In the lower lid 2, the inner stopper cap 21 and the inner stopper outer ring 22 are snapped together, and a silicone component is fitted onto the inner stopper cap 21 for waterproofing. The arc-shaped opening 112 of the outer screw cap 11 mates with the drinking spout 212 of the inner stopper cap 21. By rotating the outer screw cap 11 180°, the two are aligned to open the drinking spout 212. The flow-limiting hole at the bottom of the lower lid 2 controls the liquid flow. The overall structural design comprehensively considers multiple aspects such as opening, heat preservation, waterproofing, and liquid flow control, forming a complete coffee cup lid technical solution. The threaded connection ensures a secure connection between the lid and the body, and facilitates easy disassembly; the snap-fit ​​connection makes the installation of internal components of the upper and lower lids convenient and structurally stable; the built-in foam pad provides efficient insulation in the lid area, filling the gaps in insulation in this area of ​​existing technology; multiple silicone components work together to form a multi-layered waterproof structure, effectively preventing beverage leakage; the unique rotating opening method is simpler to operate than traditional screw-on, pop-up, and flip-top lids, quickly opening the drinking spout while reducing heat loss; the flow-limiting hole prevents excessive liquid flow, avoids scalding, and improves safety and comfort during use.

[0039] In this embodiment, as shown in FIG4, the inner wall of the outer rotating cover 11 is provided with a slot, and the upper outer wall of the inner rotating cover 14 is provided with a useful locking block, and the slot and the locking block engage with each other.

[0040] The groove on the inner wall of the outer screw cap 11 engages with the locking block on the upper outer wall of the inner screw cap 14. This locking structure is based on the principle of mechanical snap-fit, utilizing the shape adaptation and elastic deformation of the groove and the locking block to achieve a tight connection and relative fixation between the outer and inner screw caps, ensuring that they will not easily detach during rotation and opening. This makes the connection between the outer screw cap 11 and the inner screw cap 14 stable, so that when the user rotates the outer screw cap to open the drinking spout 212, the inner screw cap will not rotate or loosen accordingly, ensuring the reliability and stability of the rotation opening structure, improving the overall performance and durability of the coffee cup lid, and facilitating the user to disassemble and clean these two parts.

[0041] Specifically, as shown in Figure 4, the silicone components on the inner screw cap 14 include a first silicone ring 13 and a second silicone ring 15. The outer side of the inner screw cap 14 is provided with annular grooves on the upper and lower sides, and the first silicone ring 13 and the second silicone ring 15 are respectively engaged in the two annular grooves.

[0042] The inner screw cap 14 has annular grooves on its outer sides, with the first silicone ring 13 and the second silicone ring 15 respectively fitting into these grooves. Utilizing the elasticity of the silicone and the limiting effect of the annular grooves, the silicone rings fit tightly against the outer side of the inner screw cap, forming two waterproof seals to prevent beverages from leaking out from the connection between the inner screw cap and other components. This enhances the waterproof performance of the inner screw cap 14, and together with other silicone components, creates a more comprehensive waterproof system, effectively preventing leakage of beverages such as coffee. Even when the cup is tilted or shaken, the beverage remains sealed inside, preventing soiling of user items and improving the user experience.

[0043] Furthermore, as shown in Figures 5 and 7, the silicone component on the inner plug cover 21 includes a third silicone ring 23.

[0044] A third silicone ring 23 is fitted onto the inner cap 21. Based on the elastic sealing principle of silicone, the third silicone ring 23 fits tightly against the inner cap 21 and related components, forming a seal at the connection point to prevent beverages from leaking out of the gaps in the lower cap. This further enhances the waterproof function of the lower cap 2, working in conjunction with the silicone components of the upper cap to achieve highly efficient waterproofing of the entire coffee cup lid. This ensures that beverages will not leak under various usage scenarios, enhancing the practicality and reliability of the coffee cup lid.

[0045] Furthermore, as shown in Figure 4, the outer rotating cover 11 has an inclined surface 111 on its side, and an arc-shaped opening 112 is provided on the inclined surface 111.

[0046] The outer cap 11 has an inclined surface 111 on its side, and an arc-shaped opening 112 is set on the inclined surface 111. This design makes it easy for the drinking spout 212 of the inner cap 21 to rotate and be exposed, so that the mouth can be aligned with the drinking spout 212 of the inner cap 21 for drinking.

[0047] The inner screw cap 14 has symmetrically installed locking blocks 141 on both sides, and the inner plug 21 has symmetrically arranged locking positions 211 on both sides of its inner wall. When the upper cover 1 drives the inner screw cap 14 to rotate 180°, the locking blocks 141 and locking positions 211 can cooperate to achieve a limiting effect.

[0048] When the lid is rotated 180°, the locking block 141 and locking position 211 will make a "click" feeling through their cooperation, which will open the drinking spout 212.

[0049] Furthermore, the bottom of the inner plug 21 is provided with two circular flow-limiting ports.

[0050] The flow limiter is used to limit the flow of drinking water to prevent scalding from excessive water flow.

[0051] Furthermore, as shown in Figure 6, a protrusion for limiting the foam pad 12 is provided on the lower part of the inner screw cap 14, and an annular groove is provided on the outer side of the bottom of the inner plug cap 21, with the third silicone ring 23 being engaged in the annular groove.

[0052] A raised section is provided on the lower part of the inner screw cap 14 to restrict the position of the foam pad 12, preventing it from shifting or deforming during use and ensuring its heat preservation effect. An annular groove is provided on the outer bottom of the inner stopper cap 21, where the third silicone ring 23 is secured, fixing its position and enhancing the seal. Based on the principles of mechanical limiting and elastic sealing, this ensures stable operation of all components. This ensures that the foam pad 12 remains in an effective heat-preserving position throughout the use of the coffee cup lid, continuously providing heat preservation. Precisely securing the third silicone ring 23 enhances the sealing performance of the lower cap, further improving the overall waterproof and heat-preserving effect of the coffee cup lid, extending its lifespan and usability.

[0053] This utility model's coffee cup lid, featuring a rotating opening structure and optimized insulation design, is used as follows: First, when the user wants to drink coffee, they hold the coffee cup, applying pressure to the inclined surface 111 of the outer screw cap 11. Based on ergonomic design, the inclined surface 111 makes the grip more natural and easier to apply force. Then, the user rotates the outer screw cap 11 180° clockwise or counterclockwise. The groove on the inner wall of the outer screw cap 11 and the locking block on the upper outer wall of the inner screw cap 14 remain relatively fixed using shape adaptation and elastic deformation, ensuring that the inner screw cap 14 does not rotate with the outer screw cap 11. As the outer screw cap 11 rotates, its arc-shaped opening 112 gradually aligns with the drinking spout 212 of the inner stopper cap 21, at which point the drinking spout 212 opens, allowing the user to drink coffee through it. During this process, the first silicone ring 13 and the second silicone ring 15 on the outer side of the inner screw cap 14, as well as the third silicone ring 23 on the inner plug cap 21, maintain a good seal by relying on the elasticity of the silicone and the limiting effect of the annular groove, thus preventing beverage leakage.

[0054] After drinking, the user rotates the outer cap 11180° in the opposite direction to misalign the arc-shaped opening 112 with the drinking spout 212.

[0055] During use, the foam pad 12 inside the inner screw cap 14 insulates the cup, effectively preventing heat loss from the cup through the lid. A protrusion on the lower part of the inner screw cap 14 restricts the position of the foam pad 12, preventing displacement or deformation during use and ensuring stable heat retention. Simultaneously, multiple silicone components work together: the first silicone ring 13, the second silicone ring 15, and the third silicone ring 23 tightly adhere to their respective annular grooves, forming multiple waterproof seals. Even if the cup is tilted, shaken, or inverted, it effectively prevents beverage leakage from the joints, achieving highly efficient waterproofing and leak prevention. This ensures that the beverage will not leak when the user uses the coffee cup in various scenarios, enhancing the user experience.

[0056] When a user drinks coffee through the spout 212, the two circular flow-limiting holes at the bottom of the lower cover 2 come into play. Based on the principles of fluid dynamics, the flow-limiting holes restrict the flow rate of the beverage, ensuring that the beverage flows out at an appropriate speed and flow rate, avoiding the risk of scalding due to excessive liquid output, and ensuring the safety and comfort of the user when drinking.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A coffee cup lid with a rotating opening structure and optimized heat preservation design, comprising an upper lid (1) and a lower lid (2), characterized in that: The upper cover (1) and the lower cover (2) are connected by threads. The upper cover (1) includes an outer screw cap (11) and an inner screw cap (14) that are interlocked. The inner screw cap (14) contains a foam pad (12) for heat preservation. The inner screw cap (14) is fitted with two silicone parts for waterproofing. The lower cover (2) includes an inner plug cap (21) and an inner plug outer ring (22) that are interlocked. The inner plug cap (21) is fitted with silicone parts for waterproofing. An arc-shaped opening (112) is provided on one side of the outer screw cap (11), and a drinking spout (212) is provided on one side of the inner plug cap (21). The outer screw cap (11) can rotate the arc-shaped opening (112) to the drinking spout (212) by rotating 180°, thereby opening the drinking spout (212). The bottom of the lower cover (2) is provided with a flow-limiting hole.

2. The coffee cup lid with a rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The inner wall of the outer rotating cover (11) is provided with a slot, and the upper outer wall of the inner rotating cover (14) is provided with a useful locking block, and the slot and the locking block are engaged.

3. The coffee cup lid with a rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The silicone components on the inner screw cap (14) include a first silicone ring (13) and a second silicone ring (15). The outer side of the inner screw cap (14) is provided with annular grooves on the upper and lower sides. The first silicone ring (13) and the second silicone ring (15) are respectively stuck in the two annular grooves.

4. The coffee cup lid with rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The silicone component on the inner plug (21) includes a third silicone ring (23).

5. The coffee cup lid with a rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The outer cap (11) has an inclined surface (111) on its side, and the arc-shaped opening (112) is provided on the inclined surface (111).

6. The coffee cup lid with a rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The inner screw cap (14) is symmetrically equipped with locking blocks (141) on both sides, and the inner plug cap (21) is symmetrically provided with locking positions (211) on both sides of the inner wall. When the upper cover (1) drives the inner screw cap (14) to rotate 180°, the locking blocks (141) and locking positions (211) can cooperate to achieve a limiting effect.

7. The coffee cup lid with a rotating opening structure and optimized heat preservation design according to claim 1, characterized in that: The bottom of the inner plug (21) is provided with two circular flow-limiting ports.

8. The coffee cup lid with rotating opening structure and optimized heat preservation design according to claim 4, characterized in that: The inner screw cap (14) has a protrusion on its lower interior for limiting the foam pad (12), and the inner plug cap (21) has an annular groove on its outer bottom. The third silicone ring (23) is fitted into the annular groove.

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