A ductile eco-friendly paper cup with a composite barrier layer

Abstract

The utility model relates to paper cup design technical field, especially a kind of tenacity environmental protection paper cup with composite barrier layer;The utility model discloses cup body, inner wall, outer wall, composite barrier layer, cup mat and light water end of pressing;Cup body includes inner wall and outer wall, outer wall is sleeved in inner wall, composite barrier layer is arranged between the inner wall and outer wall of cup body, cup mat is fixedly connected with the bottom end of cup body, the inner side wall of the cup mouth of cup body is provided with a circle light water end of pressing, the end of outer connecting cup rim is integrated with light water end of pressing, the end of connecting wall is integrated with cup body, the other end of connecting wall is connected light water end of pressing;Upturnable step-shaped outer connecting cup rim, the fragile sheet structure is changed into solid 'H' beam type reinforcing bar, completely eradicates the problem that cup mouth is easy to deform and plastic suction cup bottom is adsorbed table top by initiative, provides the anti-inclination ability that traditional empty paper cup does not have completely.

Description

Technical Field

[0001] This utility model relates to the field of paper cup design technology, and in particular to a tough and environmentally friendly paper cup with a composite barrier layer. Background Technology

[0002] Paper cups are disposable drinking containers made of paper, typically with an inner coating of polyethylene or plastic. They are mainly used for holding hot or cold beverages (such as coffee, tea, water, and juice). Their lightweight, hygienic, and disposable nature makes them widely used in offices, restaurants, parties, and public places, preventing cross-contamination and facilitating carrying and distribution. Some paper cups also use biodegradable materials to meet environmental protection requirements.

[0003] However, existing paper cups often encounter the following problems during use:

[0004] Traditional paper cups have rims made of a single layer of rolled and glued paper, resulting in inherent structural weaknesses. When a user holds a cup filled with hot drinks, the radial pressure on the rim due to its ring-shaped structure quickly concentrates on the thin, rolled edge. This easily causes the rim to become unstable and "crushed," transforming from a perfect circle into an irregular ellipse or worse. Once this deformation occurs, the seal between the rim and the lid (if applicable) immediately breaks, allowing the hot drink to spill out. This not only causes the embarrassment of spilled beverages but, more importantly, the spilled hot liquid can easily burn the user's hands or other body parts, posing a significant safety risk. Therefore, the fragile rim is not only a pain point in the user experience but also a potential hazard, and empty paper cups are lightweight and easily knocked over or blown over. Utility Model Content

[0005] The main objective of this invention is to provide a resilient and environmentally friendly paper cup with a composite barrier layer, effectively addressing the inherent structural weakness of traditional paper cups, whose rims are made of a single layer of rolled and bonded paper. When a user holds the cup while holding a hot drink, the radial pressure on the rim due to its annular structure quickly concentrates on the thin, rolled edge. This easily leads to momentary instability of the rim.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A resilient and environmentally friendly paper cup with a composite barrier layer, comprising:

[0008] The cup body includes an inner wall and an outer wall, with the outer wall fitted onto the inner wall;

[0009] A composite barrier layer is provided between the inner wall and the outer wall of the cup body;

[0010] A coaster, which is fixedly connected to the bottom of the cup body;

[0011] Lightweight pressure end: A ring of the lightweight pressure end is provided on the inner side wall of the cup mouth of the cup body;

[0012] An external cup rim, one end of which is integrally connected to the lightweight pressure end;

[0013] A connecting wall, one end of which is integrally connected to the cup body, and the other end of which is connected to the lightweight pressure end.

[0014] The coaster includes:

[0015] An arc-shaped airbag wall is fitted onto the side wall of the cup body and bottom, and the interior of the arc-shaped airbag wall is provided with a cavity;

[0016] The cavity is filled with a plastic air cushion layer;

[0017] The plastic suction cup base has its top end connected to the bottom surface of the arc-shaped airbag wall, and the plastic suction cup base extends outward.

[0018] The composite barrier layer is made of corrugated paper with a wavy shape.

[0019] The inner ring wall of the outer cup rim is stepped.

[0020] The connecting wall is a thin-film hinge.

[0021] The cross-section of the outer cup rim is a stepped structure containing at least one horizontal plane and one vertical plane.

[0022] The thickness of the lightweight pressure end is thinner than the rim of the external cup.

[0023] Compared with the prior art, the beneficial effects of this utility model are: the flip-up stepped outer cup rim designed in this utility model transforms the fragile sheet structure into a sturdy "I-beam" type reinforcing rib, completely eliminating the problem of easy deformation of the cup mouth, and the plastic suction cup bottom provides an anti-tipping capability that traditional empty paper cups do not have by actively adhering to the table. Attached Figure Description

[0024] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof.

[0025] Figure 1 This is a schematic diagram of the overall shape of the present utility model.

[0026] Figure 2 This is a cross-sectional schematic diagram of the present invention.

[0027] Figure 3 for Figure 2 A magnified view of A in the middle.

[0028] The following are the labels in the diagram: 1. Cup body; 101. Inner wall; 102. Outer wall; 2. Composite barrier layer; 3. Coaster; 4. Lightweight pressure end; 5. Outer cup rim; 6. Connecting wall; 31. Arc-shaped airbag wall; 32. Cavity; 33. Plastic suction cup bottom. Detailed Implementation

[0029] 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.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] like Figure 1-3 As shown, this utility model provides a tough and environmentally friendly paper cup with a composite barrier layer. The tough and environmentally friendly paper cup with a composite barrier layer includes a cup body 1, an inner wall 101, an outer wall 102, a composite barrier layer 2, a coaster 3, and a lightweight pressure end 4. The cup body 1 includes an inner wall 101 and an outer wall 102, with the outer wall 102 sleeved on the inner wall 101. A composite barrier layer 2 is provided between the inner wall 101 and the outer wall 102 of the cup body 1. The composite barrier layer 2 is made of corrugated paper with a wavy shape. The corrugated structure is a recognized model of "providing maximum structural strength with minimal material" derived from the bionics of honeycomb structure. It greatly enhances the longitudinal compressive strength of the cup body 1, making it less likely to be flattened when stacked and less likely to be deformed when held.

[0032] The coaster 3 is fixedly connected to the bottom of the cup body 1. A lightweight pressure end 4 is provided on the inner wall of the cup rim 1. The thickness of the lightweight pressure end 4 is thinner than the outer rim 5. The lightweight pressure end 4 is a smart trigger: its purpose is to act as a water-driven switch. It is lightweight and has low density, ensuring that it can be easily pushed by hot water when pouring. Its core function is to convert the "filled with water" status signal into a mechanical action of flipping downwards, thereby triggering the entire cup rim reinforcement mechanism.

[0033] One end of the outer cup rim 5 is integrated with the lightweight pressure end 4. The inner ring wall of the outer cup rim 5 is stepped. The cross-section of the outer cup rim 5 is a stepped structure containing at least one horizontal plane and one vertical plane. The stepped outer cup rim 5 is a structural reinforcer, which is the final actuator of the entire cup mouth reinforcement system. Its purpose is to completely change the cross-sectional shape and mechanical properties of the cup mouth. A flat cup mouth is like a piece of paper, easily bent. The stepped structure turns it into an "L" or "I" shaped reinforcing rib, and the bending stiffness of this structure increases exponentially. The vertical and horizontal surfaces of the steps can distribute and transmit the point load or surface load applied to the cup mouth step by step along the structure, effectively avoiding stress concentration and preventing the cup mouth from being "crushed".

[0034] The expanded ring formed after the cups are flipped up changes the stress point from a line at the rim to a surface when the cups are stacked, greatly enhancing the pressure resistance. One end of the connecting wall 6 is integrated with the cup body 1, and the other end is connected to the lightweight pressure end 4. The connecting wall 6 is a membrane hinge. Its purpose is to provide a predetermined and reliable axis of rotation. It ensures that the movement of the lightweight pressure end 4 is precisely converted into the upward flipping movement of the outer cup rim 5, rather than ineffective twisting. It has a long lifespan, low cost, and requires no assembly, making it ideal for the production of disposable products.

[0035] To ensure resistance to external forces, a coaster 3 is designed, comprising: an arc-shaped airbag wall 31 fitted onto the side wall of the bottom of the cup body 1, with a cavity 32 inside the arc-shaped airbag wall 31; the cavity 32 is filled with a plastic air cushion layer, and the top of the plastic suction cup bottom 33 is connected to the bottom surface of the arc-shaped airbag wall 31, extending outwards. This is the first line of defense against tipping. Its purpose is to utilize the principle of physical adsorption to actively generate an additional, perpendicular suction force to the table, directly counteracting external forces that could cause the empty cup to tip over, such as collisions or wind. This is an extremely ingenious and effective "locking" mechanism. The arc-shaped airbag wall 31 passively buffers the impact, serving as the second line of defense against shocks. Its purpose is to act as a damper and energy absorber. When the lateral impact force is too large, exceeding the static friction of the suction cup bottom, the flexible airbag wall buffers and absorbs the impact energy through its own deformation, transforming the sharp, sudden impact into a gentle, slow displacement, preventing the force from being directly transmitted to the cup body 1 and causing it to collapse.

[0036] It should be noted that the resilient, environmentally friendly paper cup with a composite barrier layer designed in this utility model, when empty, features an extended design of the annular coaster 3 that physically increases the contact area between the bottom of the cup and the table, significantly lowering the overall center of gravity of the cup and fundamentally improving stability. When the plastic suction cup bottom 33 contacts a smooth tabletop, it can expel some air, creating negative pressure and generating suction force. This suction force effectively overcomes the disadvantage of the empty cup's light weight, preventing it from tipping over due to slight impacts or wind. The arc-shaped airbag wall 31, as a flexible structure, has an internal cavity 32 or filled with a plastic air cushion layer that undergoes recoverable elastic deformation when subjected to lateral impact. The impact force is first absorbed and buffered by the deformation of the airbag wall, rather than directly transmitted to the cup body 1, thus preventing the cup body 1 from collapsing due to instantaneous force. When hot water is poured in, the adhesive properties of the hot water cause the density of the lightweight pressure end 4 on the inner wall 101 of the cup opening to be less than that of water under pressure. When the pressure end is compressed, it causes the outer cup at the other end to curl upwards along the edge 5, forming an expanded reinforcing ring. The stepped inner wall 101 of the outer cup is designed as a biomimetic mechanical structure. When pressure, such as when the cup opening is held by hand, is applied to the expanded opening, the force is gradually dispersed and transmitted along the vertical and horizontal surfaces of the steps, avoiding stress concentration. This keeps the cup opening round and prevents it from collapsing, greatly enhancing the longitudinal and lateral rigidity of the cup opening and making it less prone to deformation under load, such as when stacked or held by hand.

[0037] 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 may 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 tough, environmentally friendly paper cup with a composite barrier layer, characterized in that, include: The cup body (1) includes an inner wall (101) and an outer wall (102), wherein the outer wall (102) is fitted onto the inner wall (101); A composite barrier layer (2) is provided between the inner wall (101) and the outer wall (102) of the cup body (1); Coaster (3), the coaster (3) is fixedly connected to the bottom end of the cup body (1); Lightweight pressure end (4): A ring of the lightweight pressure end (4) is provided on the inner side wall of the cup mouth of the cup body (1); An external cup rim (5) is connected at one end to the lightweight pressure end (4); Connecting wall (6), one end of which is connected to the cup body (1) as a whole, and the other end of which is connected to the lightweight pressure end (4).

2. The resilient and environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The coaster (3) includes: Arc-shaped airbag wall (31), the arc-shaped airbag wall (31) is sleeved on the side wall of the bottom of the cup body (1), and the arc-shaped airbag wall (31) has a cavity (32) inside; The cavity (32) is filled with a plastic air cushion layer; The plastic suction cup bottom (33) is connected at the top to the bottom surface of the arc-shaped airbag wall (31) and extends outward.

3. The resilient and environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The composite barrier layer (2) is made of corrugated paper with a wavy shape.

4. A tough, environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The inner ring wall of the outer cup edge (5) is stepped.

5. A tough, environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The connecting wall (6) is a thin-film hinge.

6. A tough, environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The cross-section of the outer cup edge (5) is a stepped structure containing at least one horizontal plane and one vertical plane.

7. A tough, environmentally friendly paper cup with a composite barrier layer according to claim 1, characterized in that, The thickness of the lightweight pressure end (4) is thinner than the rim of the external cup (5).

Images