Heat insulation plastic cup

By setting convex or concave strips on the outside of the lower cup portion of the plastic cup, and designing grip surfaces and reinforcement strips on the transition portion and the bottom surface of the lower cup body, the problems of poor thermal conductivity and unstable grip of the existing plastic cup are solved, and the thermal insulation effect and deformation resistance are improved.

CN222917284UActive Publication Date: 2025-05-30DONGGUAN MINGCAN PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202421688409.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-05-30
Estimated Expiration
2034-07-17

AI Technical Summary

Technical Problem

Existing plastic cups have poor thermal conductivity when filled with high-temperature liquids, which are prone to hotness and decomposition, and are unstable in holding and easily fall off.

Method used

A thermally insulated plastic cup is designed, including an upper cup portion and a lower cup portion. A convex strip or concave strip is provided on the outside of the lower cup portion, and a transition portion is arranged to be bent inward to form a gripping surface. A reinforcement strip and a bottom table are provided on the bottom of the lower cup body to form a double-layer ladder.

Benefits of technology

It realizes the thermal insulation effect and deformation resistance when installing high-temperature liquids, while improving grip stability and falling resistance, reducing the risk of scalds.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222917284U_ABST
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Abstract

The heat insulation plastic cup comprises an upper cup part and a lower cup part, the lower cup part is fixed below the upper cup part, the upper cup part comprises an upper cup body, the upper cup body is a circular ring with two through sides, the lower cup part comprises a lower cup body and a transition part, the upper end of the lower cup body is open, and the lower end of the lower cup body is closed. A transition portion is arranged at the joint of the lower cup body and the upper cup body and bent inwards, the two ends of the transition portion are connected with the lower cup body and the upper cup body respectively, the whole plastic cup is wide in the upper portion and narrow in the lower portion, protruding strips are arranged on the surface of the outer side of the lower cup portion and evenly distributed at intervals, a bottom table is arranged on the bottom face of the lower cup portion, and the bottom table is a concave portion which is concave towards the interior of the cup. A holding face is formed on the upper side of the transition portion, the cup is not prone to slipping off in use, the reinforcing strip is arranged between the bottom table and the edge of the bottom face of the lower cup portion, the cup basically makes contact with the ground when falling off, the reinforcing strip and the double-layer halfpace can provide strong resistance when the bottom face makes contact with the ground, and the cup has the advantages of being good in heat insulation effect, high in deformation resistance and the like.
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Description

Technical Field

[0001] The utility model relates to the field of plastic cups, in particular to a heat-insulating plastic cup. Background Art

[0002] With the commercialization of materials such as polystyrene, plastic cups have begun to be mass-produced and applied. These materials are both flexible and resistant, making plastic cups widely used in daily life and the catering industry. However, there are still the following problems in the use of plastic cups:

[0003] Due to the poor thermal conductivity of plastic materials, when using a plastic cup to hold hot water, the heat dissipation of the cup wall is slow, which may cause scalding. Moreover, since plastic cups are prone to decomposition and deformation at high temperatures and may even release harmful substances, they are likely to cause harm to the human body when holding high-temperature liquids. When in use, due to the smooth outer surface of the existing plastic cup without force-bearing points, it is very difficult to hold when the cup is filled with high-temperature liquid, and the cup body may fall to the ground during use. Generally, the stress resistance of plastic cups is poor, the cup body cracks, and high-temperature liquid is likely to splash on the human skin and cause damage.

[0004] Therefore, how to design a plastic cup with strong heat insulation, which is not easy to decompose and deform when holding high-temperature liquid, and still maintains high strength and anti-drop ability at a relatively low production cost has become an urgent problem to be solved by those skilled in the art. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a heat-insulating plastic cup to solve the problems put forward in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] Provide a heat-insulating plastic cup, including an upper cup part and a lower cup part. The lower cup part is fixed below the upper cup part. The upper cup part includes an upper cup body, and the upper cup body is a ring penetrating through both sides. The lower cup part includes a lower cup body and a transition part. The upper end of the lower cup body is open and the lower end is closed. A transition part is provided at the connection between the lower cup body and the upper cup body. The transition part bends inward, and both ends of the transition part are respectively connected to the lower cup body and the upper cup body. The overall shape of the plastic cup is wider at the top and narrower at the bottom. Convex strips are provided on the outer surface of the lower cup part, and the convex strips are evenly spaced. A bottom platform is provided on the bottom surface of the lower cup part. The bottom platform is a concave part recessed into the cup, and a reinforcing strip is provided between the bottom platform and the edge of the bottom surface of the lower cup part.

[0008] Further, a cup brim is provided at the opening of the upper cup body, and the cup brim surrounds the outer side of the opening edge and bends downward.

[0009] Further, the inner circle radius of the upper cup body decreases uniformly from bottom to top, and the inclination angle of the upper cup body edge is β1, and β1 < 15°.

[0010] Further, the inner circle radius of the lower cup body decreases uniformly from bottom to top, and the inclination angle of the upper cup body edge is β2, where β2 ≤ β1.

[0011] Further, the edge line of the transition part is an irregular curve, which is recessed inward to form a supportable gripping surface.

[0012] Further, the length of the upper cup part is A1, and the length of the lower cup part is A2, where 1.2 < A1:A2 < 1.8.

[0013] Further, the opening diameter of the upper cup body is A3, and the bottom diameter of the lower cup body is A4, where 1.2 < A1:A2 < 1.8.

[0014] Further, the bottom surface of the lower cup body is a groove, and the reinforcing strip is arranged around the base in the groove, and the bottom surface of the reinforcing strip is flush with the bottom surface of the groove edge.

[0015] Further, the reinforcing strip divides the groove to form a plurality of adjacent compartments.

[0016] Further, the convex strip is replaced with a concave strip, and the concave strips are distributed at intervals on the outer side surface of the lower cup part.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] The present utility model provides a heat-insulating plastic cup. A convex strip or a concave strip is provided on the outer surface of the lower cup part. When high-temperature liquid is contained in the cup, the contact area between the cup surface and the human skin surface is reduced, so that even when high-temperature liquid is contained in the cup, the human body's feeling of being scalded can be reduced. In addition, the transition part is set as a curved surface recessed inward to form a gripping surface on the upper side of the transition part. When in use, there will be a support point for the hand and it is not easy to slip. A reinforcing strip and a base are also provided on the bottom surface of the lower cup body. The bottom surface of the lower cup body is a groove, and the base and the ground form a double-layer stepped platform. The reinforcing strip is evenly distributed around the base in the bottom surface groove. It is found through investigation that when the cup falls, it is basically the ground that touches the ground. The design of the reinforcing strip and the double-layer stepped platform can provide strong resistance when the bottom surface touches the ground. The present utility model has the characteristics of good heat insulation effect and strong anti-deformation ability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional structure diagram of the heat-insulating plastic cup of the present utility model;

[0020] Figure 2 is a front view structure diagram of the heat-insulating plastic cup of the present utility model;

[0021] Figure 3 is a top view structure diagram of the heat-insulating plastic cup of the present utility model;

[0022] Figure 4This is the upward view structure diagram of the heat-insulating plastic cup of the present utility model;

[0023] Figure 5 This is the proportional schematic diagram of the heat-insulating plastic cup of the present utility model;

[0024] Figure 6 This is the angular schematic diagram of the heat-insulating plastic cup of the present utility model;

[0025] Figure 7 This is the side view structure diagram of the heat-insulating plastic cup of the present utility model;

[0026] The markings of each component in the attached drawings are as follows: 1. Upper cup part; 11. Upper cup body; 12. Cup brim; 2. Lower cup part; 21. Lower cup body; 22. Transition part; 221. Gripping and supporting surface; 23. Reinforcing strip; 24. Bottom platform; 25. Rib; 26. Partition cavity; β1. Tilt angle of the upper cup body edge; β2. Tilt angle of the lower cup body edge; A1. Length of the upper cup part; A2. Length of the lower cup part; A3. Opening diameter of the upper cup part; A4. Bottom diameter of the lower cup part. Detailed implementation manners

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the attached drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 to 4, a heat-insulating plastic cup is provided, which includes an upper cup part 1 and a lower cup part 2. The lower cup part 2 is fixed below the upper cup part 1. The upper cup part 1 includes an upper cup body 11, and the upper cup body 11 is a ring that penetrates through both sides. The lower cup part 2 includes a lower cup body 21 and a transition part 22. The upper end of the lower cup body 21 is open and the lower end is closed. A transition part 22 is provided at the connection between the lower cup body 21 and the upper cup body 11. The transition part 22 bends inward, and both ends of the transition part 22 are respectively connected to the lower cup body 21 and the upper cup body 11. The plastic cup is wider at the top and narrower at the bottom. A convex strip 25 is provided on the outer surface of the lower cup part 2. The convex strips 25 are evenly spaced. The convex strips 25 are spaced on the outer side surface of the lower cup part 2. During specific use, the convex strips 25 can also provide friction to prevent the cup from falling off the hand. Moreover, a cavity is formed inside the convex strip 25. When the cup is filled with high-temperature liquid, the contact area between the cup surface and the human skin surface is reduced, having a certain anti-scalding effect, and the contact area between the cup surface and the air is increased, improving the heat dissipation effect, so that the high-temperature liquid in the cup can be cooled down more quickly. A bottom platform 24 is provided at the bottom surface of the lower cup part 2. The bottom platform 24 is a concave part that is recessed into the cup. It is more stable when placed flat. A reinforcing strip 23 is provided between the bottom platform 24 and the edge of the bottom surface of the lower cup part 2 to improve the resistance of the bottom surface of the lower cup body 21.

[0029] A cup brim 12 is provided at the opening of the upper cup body 11. The cup brim 12 surrounds the outer side of the opening edge and bends downward. During use, the liquid in the cup can flow along the cup brim 12 into the mouth, having the function of converging the liquid, making it difficult for the liquid to overflow. At least one opening can be provided on the cup brim 12. The opening is in the shape of an eagle's beak, which can further converge the liquid into the mouth and is more convenient during use.

[0030] As Figure 6 shown, the inner circle radius of the upper cup body 11 decreases uniformly from bottom to top. The inclination angle of the edge of the upper cup body 11 is β1, and β1 < 15°. The inner circle radius of the lower cup body 21 decreases uniformly from bottom to top. The inclination angle of the edge of the upper cup body 11 is β2, and β2 ≤ β1.

[0031] As Figure 5 shown, the length of the upper cup part 1 is A1, and the length of the lower cup part 2 is A2, 1.2 < A1:A2 < 1.8. The opening diameter of the upper cup body 11 is A3, and the bottom diameter of the lower cup body 21 is A4, 1.2 < A1:A2 < 1.8.

[0032] The plastic cup as a whole presents a structure that is wider at the top and narrower at the bottom. The upper cup body 11 has a large capacity and can hold more liquid at one time. The lower cup body 21 is narrower, which is convenient for grasping during use. The inclination angles of the edges of the upper cup body 11 and the lower cup body 21 should not be too large. When the inclination angle is relatively large, the bottom support surface is not sufficient to stably support the whole plastic cup. When placed on a tabletop or other object plane, if accidentally touched, the cup body is likely to be knocked over. If the cup is filled with high-temperature liquid, it may also cause skin burns.

[0033] As Figure 7 shown, the edge line of the transition part 22 is an irregular curve, which is recessed inward to form a supportable gripping surface 221. When in use, when the hand holds the lower cup part 2 and the thumb of the hand is placed under the gripping surface 221, the gripping stability can be improved, making it difficult for the plastic cup to fall off the hand.

[0034] As Figure 4 shown, the bottom surface of the lower cup body 21 is a groove, and the reinforcing strip 23 is arranged around the base 24 in the groove. The bottom surface of the reinforcing strip 23 is flush with the bottom surface of the groove edge. The reinforcing strip 23 divides the groove to form a plurality of adjacent compartments 26. The reinforcing strip 23 and the base 24 form a stable polygonal structure, which can significantly improve the stability when placed on a plane. In addition to improving the stability, the reinforcing strip 23 can also enhance the resistance of the bottom surface, and it is not easy to crack when the cup body drops to the bottom surface or collides with a hard object, preventing the liquid in the cup from overflowing.

[0035] Replace the convex strip 25 with a concave strip. The concave strips are distributed at intervals on the outer side surface of the lower cup part 2. When in use, the concave strips can also provide friction to prevent it from falling off the hand. Moreover, a cavity is formed inside the concave strips. When the cup is filled with high-temperature liquid, the contact area between the cup surface and the human skin surface is reduced, having a certain anti-scalding effect, and increasing the contact area between the cup surface and the air, improving the heat dissipation effect, so that the high-temperature liquid in the cup can be cooled down more quickly. In addition to the convex strip 25 and the concave strip, other structures that make the outer surface of the lower cup part 2 uneven can also be used.

[0036] The utility model provides a heat-insulating plastic cup. A convex strip 25 or a concave strip is provided on the outer surface of the lower cup part 2. When the cup is filled with high-temperature liquid, the contact area between the cup surface and the human skin surface is reduced, so that even when the cup is filled with high-temperature liquid, the human scalding sensation can be reduced. In addition, the transition part 22 is set as a curved surface recessed inward, and a gripping surface is formed on the upper side of the transition part 22. When in use, the hand will have a support point and is not easy to slip. A reinforcing strip 23 and a base 24 are also provided on the bottom surface of the lower cup body 21. The bottom surface of the lower cup body 21 is a groove, and the base 24 and the ground form a double-layer stepped platform. The reinforcing strip 23 is evenly distributed around the base 24 in the bottom surface groove. It is found through investigation that when the cup drops, it basically touches the ground. The reinforcing strip 23 and the double-layer stepped platform design can provide strong resistance when the bottom surface touches the ground. The utility model has the characteristics of good heat insulation effect and strong anti-deformation ability.

[0037] The utility model provides a heat-insulating plastic cup, which is provided with convex or concave strips on the outer surface of the lower cup part, so as to reduce the contact area between the cup surface and the human skin surface when high-temperature liquid is contained in the cup, and even reduce the burning sensation of the human body when high-temperature liquid is contained in the cup. In addition, the transition part is set as a curved surface that is recessed inward, and a holding surface is formed above the transition part. During use, there will be a support point for the hand and it is not easy to slip. Moreover, reinforcing strips and a bottom platform are provided on the bottom surface of the lower cup body. The bottom surface of the lower cup body is a groove, and the bottom platform and the ground form a double-layer stepped platform. The reinforcing strips are evenly distributed in the bottom groove around the bottom platform. It is found through investigation that when the cup falls, it basically touches the ground. The design of the reinforcing strips and the double-layer stepped platform can provide strong resistance when the bottom surface touches the ground. The utility model has the characteristics of good heat insulation effect, strong anti-deformation ability, etc.

[0038] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present utility model.

Claims

1. A heat-insulating plastic cup, comprising an upper cup portion (1) and a lower cup portion (2), characterized in that: The lower cup portion (2) is fixed below the upper cup portion (1); the upper cup portion (1) comprises an upper cup body (11); the upper cup body (11) is a circular ring penetrating at two sides; the inner radius of the upper cup body (11) decreases uniformly from top to bottom; the edge inclination angle of the upper cup body (11) is β1, β1<15°; the lower cup portion (2) comprises a lower cup body (21) and a transition portion (22); the upper end of the lower cup body (21) is open and the lower end is closed; the inner radius of the lower cup body (21) decreases uniformly from top to bottom; the edge inclination angle of the lower cup body (21) is β2, β2<15°; ≦β1, a transition portion (22) is provided at the connection between the lower cup body (21) and the upper cup body (11), the transition portion (22) is bent inwardly, and the two ends of the transition portion (22) are respectively connected to the lower cup body (21) and the upper cup body (11), the plastic cup as a whole is wide at the top and narrow at the bottom, a convex strip (25) is provided on the outer surface of the lower cup portion (2), the convex strips (25) are evenly spaced, a bottom platform (24) is provided on the bottom surface of the lower cup portion (2), the bottom platform (24) is a concave portion sunken into the cup, and a reinforcing strip (23) is provided between the bottom platform (24) and the edge of the bottom surface of the lower cup portion (2).

2. The heat-insulating plastic cup according to claim 1, characterized in that: A cup brim (12) is provided at the opening of the upper cup body (11), and the cup brim (12) surrounds the outer side of the opening edge and bends downward.

3. The heat-insulating plastic cup according to claim 1, characterized in that: The edge line of the transition portion (22) is an irregular curve, which is concave inwards to form a supportable gripping surface (221).

4. The heat-insulating plastic cup according to claim 1, characterized in that: The length of the upper cup portion (1) is A1, the length of the lower cup portion (2) is A2, 1.2 <A1:A2<1.8。 5. The heat-insulating plastic cup according to claim 1, characterized in that: The opening diameter of the upper cup body (11) is A3, the bottom diameter of the lower cup body (21) is A4, 1.2 <A1:A2<1.8。 6. The heat-insulating plastic cup according to claim 1, characterized in that: The bottom surface of the lower cup body (21) is a groove, and the reinforcing strip (23) is arranged in the groove around the base (24), and the bottom surface of the reinforcing strip (23) is flush with the bottom surface of the edge of the groove.

7. The heat-insulating plastic cup according to claim 6, characterized in that: The reinforcing strip (23) divides the groove into a plurality of adjacent compartments (26).

8. The heat-insulating plastic cup according to claim 1, characterized in that: The convex strips (25) are replaced with concave strips, which are distributed at intervals on the outer surface of the lower cup portion (2).