Heat-insulating film-coated paper cup

Abstract

The utility model provides a heat-insulation film-coated paper cup, and belongs to the technical field of paper cups. Comprising a paper cup body and a curled edge arranged at the top of the paper cup body, a cup sleeve is detachably arranged outside the paper cup body in a sleeving mode, the cup sleeve is a fan-shaped base body when unfolded, two protruding blocks are arranged on the outer side of the cup sleeve in a spaced mode, paper pieces are fixedly connected to the ends of the protruding blocks, a tying rope is wound and fixed to one protruding block, and the other end of the tying rope is wound to the other protruding block, so that the fan-shaped base body forms the annular cup sleeve with an opening. The two ends of the annular cup sleeve are in a spaced fit state, the distance between the two ends is controlled by adjusting the winding length of the tying rope on the protruding block, and the inner wall of the cup sleeve is attached to the outer surface of the paper cup body all the time. By arranging the detachable cup sleeve structure, glue-free fixation between the cup sleeve and the paper cup body is achieved, and the cup sleeve can be rapidly detached and repeatedly used.

Description

A heat-insulating coated paper cup Technical Field

[0001] This utility model belongs to the field of paper cup technology and relates to a heat-insulating coated paper cup. Background Technology

[0002] Laminated paper cups are containers made by covering food-grade paper with a plastic film such as polyethylene (PE). The film is attached to the paper surface using coating or hot pressing technology to form a waterproof and leak-proof protective layer, which can effectively prevent liquid penetration and improve durability. Existing paper cups are usually single-layer paper structures, which can easily cause burns when drinking hot beverages.

[0003] Existing patent document CN101884489A discloses a cup sleeve comprising a paper body with a biodegradable adhesive layer and a paper insulation layer on its outer side. The paper insulation layer is attached to the paper body via the biodegradable adhesive layer, and its surface has multiple continuously arranged protrusions. Also, a paper cup comprises a paper body, a biodegradable coating layer, a biodegradable adhesive layer, and an insulation layer. The paper body has a biodegradable coating layer and a biodegradable adhesive layer on its inner and outer sides, respectively. The paper insulation layer is attached to the outer side of the paper body via the biodegradable adhesive layer, and its surface has multiple continuously arranged protrusions.

[0004] However, the aforementioned existing technologies still have the following shortcomings:

[0005] Inconvenient disassembly and risk of damage: The paper insulation layer of the paper cup in the above-mentioned prior art is fixed to the outside of the paper cup by a biodegradable adhesive layer. The adhesive is strong and can easily tear the insulation sleeve or damage the surface of the paper cup when disassembling, making the insulation sleeve unusable. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a heat-insulating coated paper cup to solve the problems mentioned in the background technology. This utility model achieves glue-free fixation through the physical structure cooperation between the cup sleeve and the paper cup, and supports quick disassembly and reuse.

[0007] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0008] A heat-insulating coated paper cup includes a paper cup body and a rolled edge disposed on its top. The cup body is characterized by a detachable cup sleeve, which unfolds into a fan-shaped base. Two protrusions are spaced apart on the outer side of the cup sleeve, with paper pieces fixed to the ends of the protrusions. A tether is wound around one of the protrusions, and the other end of the tether is wound around the other protrusion, forming an annular cup sleeve with an opening. The two ends of the annular cup sleeve are in a spaced-apart fit. The distance between the two ends is controlled by adjusting the winding length of the tether on the protrusions, and the inner wall of the cup sleeve always adheres to the outer surface of the paper cup body.

[0009] Furthermore, an annular melamine paper is adhered to the inner side of the cup sleeve, the inner side of the melamine paper is attached to the outer surface of the paper cup body, the top of the melamine paper extends to form a limiting part that engages with the rolled edge, and the lower end of the cup sleeve is provided with a positioning part that abuts against the outer wall of the paper cup body, the positioning part is in contact with the outer circle of the paper cup body and has an anti-slip fit.

[0010] Furthermore, the paper piece is circular.

[0011] Furthermore, the inner wall of the paper cup body is provided with a PE layer.

[0012] Furthermore, the cup sleeve includes heat insulation paper and a sponge layer, with the outer side of the heat insulation paper bonded to the inner side of the sponge layer, and the inner side of the heat insulation paper bonded to the outer side of the cardboard.

[0013] Furthermore, the positioning part is formed by the lower end of the cup sleeve being rolled inward, and the rolled edge is tightly fitted to the outer circle of the cup body for anti-slip cooperation. The positioning part is formed by the lower end of the sponge layer being rolled inward.

[0014] The beneficial effects of this utility model are:

[0015] This invention achieves glue-free fixation between the cup sleeve and the paper cup body by setting a detachable cup sleeve structure, as well as quick disassembly and reuse of the cup sleeve.

[0016] 1. A ring-shaped cup sleeve is formed by wrapping the protrusion with a rope, completely eliminating the need for adhesive fixation. The distance between the two ends of the cup sleeve is controlled by adjusting the length of the rope wrapping, so that the inner wall of the cup sleeve adheres to the outer surface of the paper cup through elastic pre-tightening force, without the need for adhesive.

[0017] 2. The limiting part extending from the top of the cardboard and the rolled edge are engaged to prevent the cup sleeve from shifting axially; the positioning part at the bottom of the cup sleeve is in anti-slip cooperation with the outer wall of the paper cup, which effectively prevents the cup sleeve from slipping off when the user is not holding the cup. Attached Figure Description

[0018] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0019] Figure 1 is a structural schematic diagram of Embodiment 1 of this utility model;

[0020] Figure 2 is a schematic diagram of the cup sleeve when it is unfolded according to Embodiment 1 of this utility model;

[0021] Figure 3 is a cross-sectional view of the cup sleeve of Embodiment 1 of this utility model;

[0022] Figure 4 is an enlarged view of point A in Figure 3 of Embodiment 1 of this utility model;

[0023] Figure 5 is a structural schematic diagram of Embodiment 2 of this utility model;

[0024] Figure 6 is a cross-sectional view of Embodiment 2 of this utility model;

[0025] Figure 7 is an enlarged view of point B in Figure 6 of Embodiment 2 of this utility model;

[0026] Figure 8 is an enlarged view of point C in Figure 6 of Embodiment 2 of this utility model.

[0027] In the picture: 1. Paper cup body; 2. Rolled edge; 3. Cup sleeve; 4. Protrusion; 5. Paper piece; 6. Tie; 7. Ring-shaped cardboard; 8. Limiting part; 9. Positioning part; 10. PE layer; 11. Insulation paper; 12. Sponge layer. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] Example 1

[0030] As shown in Figures 1-4, an insulated coated paper cup includes a paper cup body 1 and a rolled edge 2 on its top. The rolled edge 2 is formed by curling the top of the paper cup body 1 inward more than 360 degrees. The distance between the rolled edge 2 and the paper cup body 1 is 0.5-1 mm. A cup sleeve 3 is detachably fitted over the paper cup body 1. When unfolded, the cup sleeve 3 is a fan-shaped base. Two protrusions 4 are spaced apart on the outer side of the cup sleeve 3. Paper pieces 5 are fixed to the ends of the protrusions 4. The paper pieces 5 are circular. A tether 6 is wrapped around one of the protrusions 4, and the other end of the tether 6 is wrapped around the other protrusion 4. The tether 6 is located between the paper piece 5 and the cup sleeve 3. The distance between the inner side of the paper piece 5 and the cup sleeve 3 is the thickness of the protrusion 4. The surface of the protrusion 4 has anti-slip texture. The friction between the tether 6 and the protrusion 4 is... The force can effectively prevent the rope 6 from slipping. At the same time, the thickness of the protrusion 4 is 3 mm. The paper piece 5 is set so that the rope 6 can be wound onto another protrusion 4, which can realize the limiting effect when the rope 6 is wound. Meanwhile, one end of the rope 6 can also be wound between the two protrusions 4, so that the fan-shaped base forms an annular cup sleeve 3 with an opening. The two ends of the annular cup sleeve 3 are in a spaced fit state. The distance between the two ends can be controlled by adjusting the winding length of the rope 6 on the protrusion 4. The inner wall of the cup sleeve 3 always fits the outer surface of the paper cup body 1. The inner wall of the paper cup body 1 is provided with a PE layer 10. The PE layer 10 is applied to the paper cup body 1 through a coating process. The thickness of the PE layer 10 is less than 0.02 mm, so that the inner side of the paper cup body 1 has the function of resisting heat deformation.

[0031] The specific implementation method of Example 1 of this utility model is as follows:

[0032] One end of the tether 6 is wrapped and fixed to one of the protrusions 4. The tether 6 is sandwiched between the paper piece 5 and the cup sleeve 3. The limiting effect of the paper piece 5 is used to prevent the tether 6 from shifting during winding. The tether 6 can be wound in the following ways:

[0033] Single bump 4 fixing: only the paper piece 5 is wound to the target bump 4;

[0034] Alternating winding of double protrusions 4: The two protrusions 4 are wound back and forth to form a cross fixation.

[0035] The fan-shaped base is closed into a ring-shaped cup sleeve 3 by the winding action, so that the cup sleeve 3 can be matched with the paper cup body 1. The two ends are in a spaced-out matching state. The ring-shaped cup sleeve 3 is put on the outside of the paper cup body 1 from bottom to top, ensuring that the inner wall of the cup sleeve 3 is in close contact with the outer surface of the paper cup.

[0036] When disassembling, simply remove the cup sleeve 3 from top to bottom to take out the paper cup body 1, or unfold the cup sleeve 3 into a fan-shaped base by releasing the tie 6.

[0037] In the first embodiment of this utility model, a ring-shaped cup sleeve 3 is formed by wrapping the protrusion 4 with the tying rope 6, completely eliminating the need for adhesive fixing. The distance between the two ends of the cup sleeve 3 is controlled by adjusting the winding length of the tying rope 6, so that the inner wall of the cup sleeve 3 is attached to the outer surface of the paper cup by elastic pre-tightening force. No adhesive is required. Furthermore, by adjusting the winding length of the tying rope 6 to control the distance between the two ends of the cup sleeve 3, the cup sleeve 3 can be used with different types of paper cups.

[0038] Example 2

[0039] As shown in Figures 5-8, an annular melamine paper 7 is glued to the inner side of the cup sleeve 3. The inner side of the melamine paper 7 is attached to the outer surface of the paper cup body 1. The top of the melamine paper 7 extends to form a limiting part 8 that engages with the rolled edge 2. The thickness of the limiting part 8 is 0.4-0.9 mm. The limiting part 8 is embedded in the gap between the rolled edge 2 and the paper cup body 1. The lower end of the cup sleeve 3 is provided with a positioning part 9 that abuts against the outer wall of the paper cup body 1. The positioning part 9 contacts the outer circle of the paper cup body 1 and has an anti-slip fit.

[0040] The cup sleeve 3 includes heat insulation paper 11 and a sponge layer 12. The outer side of the heat insulation paper 11 is bonded to the inner side of the sponge layer 12, and the inner side of the heat insulation paper 11 is bonded to the outer side of the cardboard 7. The positioning part 9 is formed by the lower end of the cup sleeve 3 being rolled inward. The rolled edge 2 is tightly fitted to the outer circle of the paper cup body 1 to prevent slippage. The positioning part 9 is formed by the lower end of the sponge layer 12 being rolled inward. The sponge layer 12 has a certain elasticity, and the rolled edge 2 of the sponge layer 12 has deformation force. Friction is generated by close contact to limit the cup sleeve 3 from slipping on the paper cup body 1.

[0041] The specific operation method of Embodiment 2 of this utility model is as follows:

[0042] During installation: Insert the cup sleeve 3 into the paper cup body 1 from bottom to top, so that the limiting part 8 is embedded in the gap between the rolled edge 2 and the paper cup body 1. The sponge layer 12 has a deformation force when the rolled edge 2 is turned up, and friction is generated by close contact, which restricts the cup sleeve 3 from slipping off the paper cup body 1.

[0043] When disassembling: Take the cup sleeve 3 out of the paper cup body 1 from top to bottom. The limiting part 8 moves to the gap between the rolled edge 2 and the paper cup body 1. The friction between the positioning part 9 and the paper cup body 1 is greater than the weight of the cup sleeve 3. However, when the user pulls the cup sleeve 3 down by hand, the force of pulling down is much greater than the friction between the positioning part 9 and the paper cup body 1, so it will not be difficult or obstructed.

[0044] In the second embodiment of this utility model, the limiting part 8 extending from the top of the cardboard 7 engages with the rolled edge 2 to prevent the cup sleeve 3 from shifting axially; the positioning part 9 at the lower end of the cup sleeve 3 cooperates with the anti-slip outer wall of the paper cup, effectively preventing the cup sleeve 3 from sliding off when the user is not holding the cup.

[0045] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A heat-insulating coated paper cup, comprising a paper cup body (1) and a rolled edge (2) disposed on its top, characterized in that: The paper cup body (1) is detachably fitted with a cup sleeve (3). When the cup sleeve (3) is unfolded, it is a fan-shaped base. Two protrusions (4) are spaced apart on the outer side of the cup sleeve (3). Paper pieces (5) are fixed to the ends of the protrusions (4). One of the protrusions (4) is wrapped with a tether (6). The other end of the tether (6) is wrapped around the other protrusion (4), so that the fan-shaped base forms an annular cup sleeve (3) with an opening. The two ends of the annular cup sleeve (3) are in a spaced-out fit. The distance between the two ends is controlled by adjusting the winding length of the tether (6) on the protrusion (4). The inner wall of the cup sleeve (3) is always in contact with the outer surface of the paper cup body (1).

2. The heat-insulating coated paper cup according to claim 1, characterized in that, The inner side of the cup sleeve (3) is glued with a ring-shaped cardboard (7). The inner side of the cardboard (7) is attached to the outer surface of the paper cup body (1). The top of the cardboard (7) extends to form a limiting part (8) that engages with the rolled edge (2). The lower end of the cup sleeve (3) is provided with a positioning part (9) that abuts against the outer wall of the paper cup body (1). The positioning part (9) contacts the outer circle of the paper cup body (1) and is anti-slip.

3. The paper cup coated with a heat-insulating film according to claim 1, wherein The paper piece (5) is circular, and the diameter of the circular paper piece (5) is greater than the width of the protrusion (4).

4. The heat-insulating coated paper cup according to claim 1, characterized in that, The inner wall of the paper cup body (1) is provided with a PE layer (10).

5. The paper cup coated with a heat-insulating film according to claim 2, wherein The cup sleeve (3) includes heat insulation paper (11) and a sponge layer (12). The outer side of the heat insulation paper (11) is bonded to the inner side of the sponge layer (12), and the inner side of the heat insulation paper (11) is bonded to the outer side of the cardboard (7).

6. The paper cup coated with a heat insulating film according to claim 5, wherein The positioning part (9) is formed by the lower end of the cup sleeve (3) being rolled inward, and the rolled edge (2) is tightly attached to the outer circle of the cup body (1) to prevent slipping. The positioning part (9) is formed by the lower end of the sponge layer (12) being rolled inward.

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