Double-layer heat preservation and insulation paper cup

By setting support ribs and a handle structure between the inner and outer layers of the paper cup, combined with a vent design, the problems of deformation and burns in double-layer heat-insulating paper cups are solved, achieving better heat preservation and grip stability.

CN223791939UActive Publication Date: 2026-01-13ANQING BIOPACK CO LTD
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Patent Information

Application Number
CN202520541465.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-26
Publication Date
2026-01-13
Estimated Expiration
2035-03-26

AI Technical Summary

Technical Problem

Existing double-layered insulated paper cups have poor resistance to deformation during use, are prone to deformation and scalding users, and hot water is easy to spill.

Method used

Support ribs are installed between the inner and outer layers of the paper cup, and a handle base and handle are set on the outer side of the outer layer. A cup lid is set on the top of the inner layer, and a vent hole is provided on the cup lid. The arc-shaped concave surface matches the cup mouth to prevent opening, and the vent hole regulates the air pressure.

Benefits of technology

It improves the paper cup's resistance to deformation and its heat retention effect, prevents burns, enhances grip stability, and prevents hot water from spilling.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223791939U_ABST
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Abstract

The utility model discloses a double-layer heat preservation and insulation paper cup which comprises a paper cup inner layer, a paper cup outer layer is sleeved on the outer side of the paper cup inner layer, and supporting legs are fixedly connected with the annular side of the bottom of the paper cup outer layer. The paper cup is divided into the paper cup inner layer and the paper cup outer layer, the heat insulation cavity is formed by the paper cup inner layer and the paper cup outer layer, heat exchange between hot water in the cup and outside air is effectively reduced, the heat preservation effect of the paper cup can be effectively improved through the matched cup cover, meanwhile, the heat insulation cavity is formed by the paper cup inner layer and the paper cup outer layer, and a user is prevented from being scalded. When a user holds the paper cup, the supporting effect on the paper cup outer layer can be effectively improved through the arranged supporting ribs, the paper cup inner layer and the paper cup outer layer have the double-layer heat preservation and insulation effect, meanwhile, the deformation resistance of the paper cup is effectively improved, and the situation that the paper cup inner layer and the paper cup outer layer of the paper cup are attached to each other when the paper cup is held in use is avoided; and a user is effectively prevented from being scalded by hot water in the paper cup.
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Description

Technical Field

[0001] This utility model relates to the field of paper cup technology, specifically a double-layer heat-insulating paper cup. Background Technology

[0002] Paper cups are paper containers made by mechanically processing and bonding paper made from chemical wood pulp. They are cup-shaped in appearance. In order to achieve the effects of anti-scalding and heat insulation, a double-layer heat-insulating paper cup has been proposed.

[0003] Current double-layered insulated paper cups, while possessing an inner and outer layer that form an insulating cavity to achieve heat insulation, suffer from several drawbacks. Firstly, the hollow structure of the inner and outer layers results in poor overall resistance to deformation. Secondly, the inner and outer layers tend to stick together when held, potentially causing burns. Thirdly, the cups are prone to deformation, leading to spillage of hot water and inconvenience. Therefore, we propose a new double-layered insulated paper cup to address these issues. Utility Model Content

[0004] The purpose of this invention is to provide a double-layer heat-insulating paper cup to solve the problems currently found in the market as described in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer heat-insulating paper cup, comprising an inner paper cup layer, an outer paper cup layer sleeved on the outside of the inner paper cup layer, and a support leg fixedly connected to the bottom circumference of the outer paper cup layer, wherein...

[0006] Supporting ribs are installed at equal intervals between the inner and outer layers of the paper cup. A cup lid is provided at the top opening of the inner layer of the paper cup. A handle base is installed on the outer side of the outer layer of the paper cup, and handles are fixedly connected to both sides of the handle base.

[0007] Preferably, the inner side of the inner layer of the paper cup and the outer layer of the paper cup are fixedly connected by a support rib, and the support rib is fixedly connected to the inner layer and the outer layer of the paper cup by gluing.

[0008] Preferably, the support ribs are distributed in a ring at equal intervals on the inner side of the paper cup, and the support ribs are hollow and the outer surface of the support ribs is arc-shaped.

[0009] Preferably, the inner side of the edge of the cup lid is an arc-shaped concave surface, and the arc-shaped concave surface of the cup lid matches the outer shape of the edge of the paper cup opening.

[0010] Preferably, a vent hole is provided through the top of one side of the cup lid.

[0011] Preferably, the handle base and the handle are integrally fixedly connected, and the handle base and the handle are made of rigid paper material, and the handle base is fixedly connected to the outer wall of the paper cup by gluing.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention relates to a paper cup consisting of an inner layer and an outer layer. These two layers form an insulating cavity, effectively reducing heat exchange between the hot water inside the cup and the outside air. Combined with a lid, this significantly improves the cup's heat retention. The insulating cavity also prevents burns to the user. When the user holds the cup, the supporting ribs provide additional support to the outer layer, resulting in double-layer insulation. This design also enhances the cup's resistance to deformation and prevents the inner and outer layers from sticking together during use, effectively preventing burns from the hot water inside.

[0014] This invention, when the lid is placed over the opening of the cup, uses the arc-shaped concave surface on the inner side of the lid's edge to match the edge of the cup's opening, preventing the lid from opening easily. At the same time, the vent holes ensure that the air pressure inside and outside the cup is balanced before and after the lid is placed, preventing air pressure from hindering the opening and closing of the lid, thus facilitating the putting on or taking off of the lid.

[0015] In this invention, a handle is glued to the outer surface of a paper cup. Initially, the handle is attached to the surface of the cup, allowing the paper cup to be stacked. When using the paper cup, the handle is unfolded, and the paper cup is held by both handles at the same time. This not only avoids direct contact with the surface of the paper cup during use, but also further prevents the user from being scalded by hot water, and effectively improves the stability of holding the paper cup. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the unfolded structure of the inner layer of the paper cup according to this utility model;

[0019] Figure 4 This is a schematic diagram of the unfolded handle base structure of this utility model.

[0020] In the picture: 1. Inner layer of paper cup; 2. Outer layer of paper cup; 3. Support leg; 4. Support rib; 5. Lid; 6. Vent hole; 7. Handle base; 8. Handle. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a double-layer heat-insulating paper cup, including an inner paper cup layer 1, an outer paper cup layer 2 sleeved on the outside of the inner paper cup layer 1, and a support leg 3 fixedly connected to the bottom circumference of the outer paper cup layer 2.

[0023] Support ribs 4 are installed at equal intervals between the inner layer 1 and the outer layer 2 of the paper cup. A cup lid 5 is provided at the top opening of the inner layer 1 of the paper cup. A handle seat 7 is installed on the outer side of the outer layer 2 of the paper cup. Handles 8 are fixedly connected to both sides of the handle seat 7.

[0024] The paper cup consists of an inner layer 1 and an outer layer 2. The inner layer 1 and the outer layer 2 form an insulated cavity, effectively reducing heat exchange between the hot water inside the cup and the outside air. Combined with the lid 5, this effectively improves the heat preservation effect of the paper cup. At the same time, the insulated cavity formed by the inner layer 1 and the outer layer 2 prevents the user from being scalded. When the user holds the paper cup, the support ribs 4 effectively enhance the support for the outer layer 2. This provides double-layer heat preservation for both the inner layer 1 and the outer layer 2, while also effectively improving the paper cup's resistance to deformation. This prevents the inner layer 1 and the outer layer 2 from sticking together when the user holds the paper cup, effectively preventing the hot water inside the cup from scalding the user.

[0025] Please see Figures 1 to 4 The inner layer 1 of the paper cup is fixedly connected to the outer layer 2 of the paper cup by a support rib 4. The support rib 4 is fixedly connected to the inner layer 1 and the outer layer 2 of the paper cup by gluing. The support rib 4 is distributed in a ring at equal intervals on the ring side of the inner layer 1 of the paper cup. The support rib 4 is hollow and the outer surface of the support rib 4 is arc-shaped.

[0026] Please see Figures 1 to 4 The inner edge of the cup lid 5 is a concave arc, and the concave arc of the cup lid 5 matches the outer shape of the edge of the paper cup opening. A vent hole 6 runs through the top of one side of the cup lid 5. When the cup lid 5 is placed on the cup opening, the concave arc of the inner edge of the cup lid 5 matches the edge of the cup opening, preventing the cup lid 5 from being opened easily. At the same time, the vent hole 6 ensures that the air pressure inside and outside the cup is balanced before and after the cup lid 5 is placed on, preventing the air pressure from hindering the opening and closing of the cup lid 5, so that the cup lid 5 can be placed on or opened.

[0027] Please see Figures 1 to 4 The handle base 7 and the handle 8 are integrally fixedly connected, and the handle base 7 and the handle 8 are made of hard paper material. The handle base 7 is fixedly connected to the outer wall of the outer layer 2 of the paper cup by gluing. The outer surface of the paper cup is fixedly connected to the handle base 7 by gluing. The handle 8 is initially attached to the surface of the cup, so that the paper cup can be supported and stacked. When using the paper cup, the handle 8 is unfolded, and the paper cup is held by both handles 8 at the same time. This not only avoids direct contact with the surface of the paper cup during use, but also further avoids hot water scalding the user, and effectively improves the stability of holding the paper cup.

[0028] Working principle: This is a double-layered insulated paper cup. The paper cup consists of an inner layer 1 and an outer layer 2. The inner layer 1 and the outer layer 2 form an insulated cavity, which effectively reduces the heat exchange between the hot water inside the cup and the outside air. With the cup lid 5, the heat preservation effect of the paper cup can be effectively improved. At the same time, the insulated cavity formed by the inner layer 1 and the outer layer 2 prevents the user from being scalded. When the user holds the paper cup, the support ribs 4 can effectively improve the support effect of the outer layer 2. While the inner layer 1 and the outer layer 2 of the paper cup have a double-layered heat preservation effect, the paper cup's resistance to deformation is also effectively improved. This prevents the inner layer 1 and the outer layer 2 of the paper cup from sticking together when the user holds the paper cup, effectively preventing the hot water inside the paper cup from scalding the user.

[0029] When the lid 5 is placed over the cup opening, the inner curved concave surface of the lid 5 matches the edge of the cup opening, preventing the lid 5 from opening easily. At the same time, the vent 6 ensures that the air pressure inside and outside the cup is balanced before and after the lid 5 is placed, preventing air pressure from hindering the opening and closing of the lid 5. The outer surface of the paper cup is glued and fixed to the handle base 7. The handle 8 is initially attached to the surface of the cup, allowing the paper cup to be stacked. When using the paper cup, the handle 8 is unfolded, and the paper cup is held by both handles 8 at the same time. This not only avoids direct contact with the surface of the paper cup during use, further preventing hot water from scalding the user, but also effectively improves the stability of holding the paper cup.

[0030] 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 double-layer heat-insulating paper cup, comprising an inner paper cup layer (1), an outer paper cup layer (2), legs (3), supporting ribs (4), a lid (5), vent holes (6), a handle base (7), and a handle (8), characterized in that: The inner layer (1) of the paper cup is covered by an outer layer (2), and a support leg (3) is fixedly connected to the bottom ring side of the outer layer (2). Support ribs (4) are installed at equal intervals between the inner layer (1) and the outer layer (2) of the paper cup. A cup lid (5) is provided at the top opening of the inner layer (1). A handle seat (7) is installed on the outer side of the outer layer (2) of the paper cup. Handles (8) are fixedly connected to both sides of the handle seat (7).

2. The double-layer heat-insulating paper cup according to claim 1, characterized in that: The inner side of the inner layer (1) of the paper cup and the outer layer (2) of the paper cup are fixedly connected by a support rib (4), and the support rib (4) is fixedly connected to the inner layer (1) and the outer layer (2) of the paper cup by gluing.

3. The double-layer heat-insulating paper cup according to claim 1, characterized in that: The support ribs (4) are distributed in a ring at equal intervals on the inner side of the paper cup (1), and the support ribs (4) are hollow and the outer surface of the support ribs (4) is arc-shaped.

4. The double-layer heat-insulating paper cup according to claim 1, characterized in that: The inner side of the edge of the cup lid (5) is an arc-shaped concave surface, and the arc-shaped concave surface of the cup lid (5) matches the outer shape of the edge of the paper cup opening.

5. The double-layer heat-insulating paper cup according to claim 1, characterized in that: A vent hole (6) runs through the top of one side of the cup lid (5).

6. The double-layer heat-insulating paper cup according to claim 1, characterized in that: The handle base (7) and the handle (8) are integrally fixedly connected, and the handle base (7) and the handle (8) are made of hard paper material. The handle base (7) is fixedly connected to the outer wall of the outer layer (2) of the paper cup by gluing.