Double-layer cup sleeve and cup
By setting elastic protrusions on the inner surface of the outer sleeve, the problems of unstable grip and high friction of traditional cup sleeves are solved, achieving stability, easy rotation and heat insulation, thus improving the practicality and aesthetics of double-layer cup sleeves.
Patent Information
- Application Number
- CN202520096515.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional cup sleeves are single-layered, which cannot simultaneously meet the needs of aesthetics and practicality. Furthermore, double-layered cup sleeves are prone to slipping, have high friction, are not stable to hold, and are inconvenient to rotate.
Elastic bumps are distributed on the inner surface of the outer jacket. The rebound force of the elastic bumps enhances the stability between the inner and outer jackets, and the friction is reduced by reducing the contact area, allowing the outer jacket to rotate easily. At the same time, the small gaps provide a heat insulation effect.
It achieves a stable grip, easy rotation, and heat insulation, enhancing the user experience and aesthetics of the cup sleeve.
Smart Images

Figure CN223541740U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cup sleeves, and more particularly to a double-layer cup sleeve and a cup with the double-layer cup sleeve. Background Technology
[0002] Traditional cup sleeves are mostly single-layered designs with limited functionality, failing to meet users' dual needs for aesthetics and practicality. In recent years, as consumers' pursuit of quality of life has continued to improve, various styles of double-layered cup sleeves have appeared on the market. However, most of these double-layered cup sleeves suffer from problems such as easy slippage between the inner and outer sleeves, resulting in an unstable grip. At the same time, the high friction between the inner and outer sleeves makes it difficult for the outer sleeve to rotate relative to the inner sleeve. Utility Model Content
[0003] To address the shortcomings of the prior art, this invention provides a double-layered cup sleeve and a cup with the double-layered cup sleeve. The double-layered cup sleeve provides a secure grip while allowing the outer sleeve to rotate easily relative to the inner sleeve.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A double-layer cup sleeve includes an inner sleeve and an outer sleeve, both of which have openings at both ends. The inner sleeve is lined inside the outer sleeve, and the inner surface of the outer sleeve is distributed with elastic protrusions.
[0006] The double-layer cup sleeve of this technical solution utilizes elastic protrusions distributed on the inner surface of the outer sleeve. On one hand, the elastic protrusions deform under compression and rebound, resulting in a tighter fit between the inner and outer sleeves, making relative displacement and loosening less likely. On the other hand, the inner and outer sleeves make contact through the surfaces of the elastic protrusions, reducing the contact area and thus decreasing the friction between them, allowing the outer sleeve to rotate easily relative to the inner sleeve.
[0007] In a specific embodiment of this utility model, both the inner sleeve and the outer sleeve are conical in shape, with the top diameter being larger than the bottom diameter.
[0008] In a specific embodiment of this utility model, the outer surface of the inner sleeve is provided with a pattern.
[0009] In a specific embodiment of this utility model, the outer casing has a perforation on its circumference.
[0010] In a specific embodiment of this utility model, the inner surface of the inner sleeve is coated with hot melt adhesive.
[0011] In a specific embodiment of this utility model, the shape of the elastic protrusion is a round dot, a cylindrical dot, a conical dot, or a convex ridge.
[0012] A cup includes a cup body and a cup sleeve, wherein the cup sleeve is fitted onto the cup body, and the cup sleeve is a double-layered cup sleeve.
[0013] The beneficial effects of this invention are as follows: Because the inner surface of the outer cover has elastic protrusions, the rebound force generated by the deformation of these protrusions when held makes the contact between the inner and outer covers more stable and less prone to slippage. During rotation, the inner and outer covers contact through the surfaces of the elastic protrusions, reducing the contact area and friction, allowing the outer cover to rotate easily relative to the inner cover. Furthermore, the area between the inner and outer covers other than the elastic protrusions has a small gap, which provides heat insulation and better anti-scalding effect. Attached Figure Description
[0014] The present invention will be further described below with reference to the accompanying drawings:
[0015] Figure 1 This is a schematic diagram illustrating the separation of the inner and outer cup sleeves of this utility model.
[0016] Figure 2 This is a schematic diagram illustrating the cup-holding effect of the double-layer cup sleeve of this utility model.
[0017] Figure 3 This is a schematic diagram illustrating the split design of the double-layered cup sleeve with a hollowed-out outer layer, as per this utility model.
[0018] Figure 4 This is a schematic diagram illustrating the cup-holding effect of the double-layered cup sleeve with a hollowed-out outer strap of this utility model.
[0019] Component identification:
[0020] 1. Inner sleeve, 2. Outer sleeve, 3. Elastic bumps, 4. Hollowed-out design, 5. Cup body. Detailed Implementation
[0021] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1 As shown, the double-layer cup sleeve of this utility model includes an inner sleeve 1 and an outer sleeve 2. Both the inner sleeve 1 and the outer sleeve 2 have openings at both ends. The inner sleeve 1 is lined inside the outer sleeve 2, and the inner surface of the outer sleeve 2 is distributed with elastic protrusions.
[0023] like Figure 2As shown, in use, the inner sleeve 1 is fitted inside the outer sleeve 2. The outer sleeve 2, through elastic protrusions 3 distributed on its inner surface, abuts against the outer surface of the inner sleeve 1. The elastic protrusions 3, when compressed and deformed, generate an elastic rebound force, which makes the inner sleeve 1 and outer sleeve 2 fit more tightly, preventing relative displacement and loosening, thus enhancing stability. During rotation, the discretely distributed elastic protrusions 3 reduce the contact area between the inner sleeve 1 and outer sleeve 2, thereby reducing the friction between them and allowing the outer sleeve 2 to rotate easily relative to the inner sleeve 1. Furthermore, the area between the inner sleeve 1 and outer sleeve 2, excluding the elastic protrusions 3, has a small gap. This small gap provides heat insulation, resulting in better anti-scalding performance.
[0024] Both the inner sleeve 1 and the outer sleeve 2 are conical sleeves, larger at the top and smaller at the bottom. The shape of the elastic protrusions 3 can be a dot, a cylindrical point, a conical point, a ridge, etc., which will not be listed here. In this embodiment, the elastic protrusions are dots. The size, distribution pattern, and distribution density of the elastic protrusions 3 can be determined according to the usage scenario of the double-layer cup sleeve.
[0025] like Figure 3 and Figure 4 As shown, the outer surface of the inner sleeve 1 has an aesthetically pleasing pattern, which may include text, graphics, symbols, etc., not all of which are listed here. This pattern can be fixed to the outer surface of the inner sleeve 1 by printing, coating, or pasting. Meanwhile, the outer sleeve 2 has a perforation 4 on its circumference. The perforation 4 can be circular, oval, star-shaped, diamond-shaped, etc., not all of which are listed here. The perforation 4 can also be a patterned perforation, corresponding to the pattern on the outer surface of the inner sleeve 1 to create a visual contrast. Thus, rotating the outer sleeve 2 can create different visual effects for the double-layered cup sleeve.
[0026] The inner surface of the inner sleeve 1 is coated with hot melt adhesive. Hot melt adhesive is a non-sticky solid at room temperature, but melts and becomes sticky when heated. When the double-layered cup sleeve is placed on the cup, if the cup contains a hot beverage, the hot melt adhesive on the inner surface of the inner sleeve will become sticky upon heating and adhere to the outer surface of the cup, preventing the double-layered cup sleeve from slipping off. To further protect the environment and avoid harming human health, both the inner sleeve 1 and the outer sleeve 2 can be made of environmentally friendly materials.
[0027] This utility model also discloses a cup, which has a cup body 5 and a cup sleeve, with the cup sleeve covering the cup body. The cup sleeve is a double-layered cup sleeve. In use, the cup is held by the outer sleeve 2, while the inner sleeve 1 is attached to the cup body 5. This cup has the advantage of a stable grip, and the cup body can rotate within the outer sleeve 2.
[0028] As can be seen from the technical solution of this utility model, firstly, by setting elastic protrusions 3 on the inner surface of the outer sleeve 2, the elastic protrusions 3 generate a rebound force when squeezed. The rebound force enhances the stability of the contact between the inner sleeve 1 and the outer sleeve 2, making it less likely for the inner sleeve 1 and the outer sleeve 2 to slip, resulting in a better grip. When rotating, since the inner sleeve 1 and the outer sleeve 2 contact each other through the surface of the elastic protrusions 3, the contact area is reduced, thus reducing the friction between the inner sleeve 1 and the outer sleeve 2, allowing the outer sleeve 2 to rotate easily relative to the inner sleeve 1. Secondly, the area between the inner sleeve 1 and the outer sleeve 2 other than the elastic protrusions 3 has a small gap, which can play a role in heat insulation, resulting in a better anti-scalding effect. Thirdly, by setting patterns on the outer surface of the inner sleeve 1 and setting hollows 4 on the circumference of the outer sleeve 2, the visual patterns can be changed by rotating the outer sleeve 2, giving the double-layer cup sleeve different visual effects.
[0029] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. A double-layered cup sleeve, comprising: An inner sleeve and an outer sleeve, both having openings at both ends, with the inner sleeve lining the inside of the outer sleeve; Its characteristic feature is that the inner surface of the outer jacket is distributed with elastic protrusions.
2. The double-layer cup sleeve according to claim 1, characterized in that: Both the inner sleeve and the outer sleeve are conical in shape, with the top diameter being larger than the bottom diameter.
3. The double-layer cup sleeve according to claim 1, characterized in that: The outer surface of the inner sleeve is decorated with a pattern.
4. The double-layer cup sleeve according to claim 3, characterized in that: The outer garment has cutouts on its circumference.
5. The double-layer cup sleeve according to claim 1, characterized in that: The inner surface of the inner sleeve is coated with hot melt adhesive.
6. The double-layer cup sleeve according to claim 1, characterized in that: The shape of the elastic protrusion can be a round dot, a cylindrical dot, a conical dot, or a convex ridge.
7. A cup, comprising a cup body and a cup sleeve, wherein the cup sleeve is fitted onto the cup body, characterized in that: The cup sleeve is the double-layered cup sleeve as described in any one of claims 1 to 6.