Paper cup

Abstract

The utility model relates to the technical field of articles for daily use, in particular to a paper cup. The paper cup comprises an inner cup body and an outer cup body, a cup opening is formed in one end of the inner cup body, and the side wall of the inner cup body protrudes in the direction away from the axis of the inner cup body to form a clamping part. The outer cup body is arranged on the periphery of the inner cup body in a sleeving manner, a matching part is arranged on the outer cup body, and the matching part is clamped with the clamping part in a limiting manner, so that the outer cup body is clamped and matched with the inner cup body. The paper cup solves the problems that when an existing double-layer paper cup is bonded through glue, cost is high, and safety is poor.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of daily necessities, in particular to a paper cup. BACKGROUND

[0002] In daily life, as a low-cost container, paper cups are convenient to carry and are often used to hold various beverages. At present, in order to improve the strength and heat insulation performance of paper cups, an outer package is often sleeved on the circumferential side of the paper cup body to form a double-layer structure. In related technologies, glue is often used to bond the outer package and the inner cup body. However, on the one hand, the bonding process is complex and the cost is high, and on the other hand, the glue has certain toxicity and will melt after being heated, which can easily cause the outer package of the paper cup to fall off, thereby posing a safety risk. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a paper cup to solve the problems of high cost and poor safety of the existing double-layer paper cup bonded by glue.

[0004] The present application provides a paper cup, which comprises an inner cup body and an outer cup body. One end of the inner cup body has a cup mouth, and the side wall of the inner cup body protrudes in a direction away from the axis thereof to form a clamping portion. The outer cup body is sleeved on the outer periphery of the inner cup body, wherein a matching portion is arranged on the outer cup body, and the matching portion and the clamping portion are limitingly clamped to enable the outer cup body and the inner cup body to be clamped and matched.

[0005] In one of the embodiments, the matching portion is configured as a clamping groove arranged on the side wall of the outer cup body. When the outer cup body is sleeved on the outer periphery of the inner cup body, the clamping portion can extend into the clamping groove and be limitingly clamped with the clamping groove.

[0006] In one of the embodiments, the matching portion is configured as a curled edge arranged at the end of the outer cup body. When the outer cup body is sleeved on the outer periphery of the inner cup body, the side surface of the clamping portion close to the cup mouth can be limitingly clamped with the matching portion to prevent the outer cup body from moving in the axial direction of the paper cup away from the cup mouth.

[0007] In one of the embodiments, the number of the clamping portions is one, and the clamping portion is arranged on the side wall of the inner cup body close to the cup mouth. The number of the matching portions is one, and the matching portion is arranged at one end of the outer cup body close to the cup mouth.

[0008] In one of the embodiments, the number of the clamping portions is one, and the clamping portion is arranged on the sidewall of the inner cup body and close to the cup mouth, and the number of the matching portions is two, and the two matching portions are arranged on the opposite ends of the outer cup body respectively; wherein the matching portion arranged on the end of the outer cup body close to the cup mouth is limitedly clamped with the side surface of the clamping portion close to the cup mouth.

[0009] In one of the embodiments, the number of the clamping portions is one, and the clamping portion is arranged on the sidewall of the inner cup body and away from the cup mouth, and the number of the matching portions is one, and the matching portion is arranged on the end of the outer cup body away from the cup mouth.

[0010] In one of the embodiments, the end of the outer cup body away from the matching portion is arranged in abutment with the sidewall of the inner cup body.

[0011] In one of the embodiments, the number of the clamping portions is one, and the clamping portion is arranged on the sidewall of the inner cup body and away from the cup mouth, and the number of the matching portions is two, and the two matching portions are arranged on the opposite ends of the outer cup body respectively; wherein the matching portion arranged on the end of the outer cup body away from the cup mouth is limitedly clamped with the side surface of the clamping portion close to the cup mouth.

[0012] In one of the embodiments, the number of the clamping portions is two, and the two clamping portions are arranged on the sidewall of the inner cup body at intervals, and the number of the matching portions is two, and the two matching portions are arranged on the opposite ends of the outer cup body respectively; wherein the two matching portions are limitedly clamped with the side surface of the two clamping portions close to the cup mouth respectively.

[0013] In one of the embodiments, along the axial direction of the paper cup and from the inside of the paper cup to the cup mouth, the cross-sectional area of the inner cup body and the outer cup body gradually increases.

[0014] Compared with the prior art, the paper cup provided by the application can ensure the reliability of the connection between the inner cup body and the outer cup body by directly processing the clamping portion on the sidewall of the inner cup body and clamping and matching the clamping portion with the matching portion on the outer cup body, prevent the outer cup body from separating from the inner cup body, and thus can cancel the traditional bonding mode, has lower cost and higher safety. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0016] Figure 1 A cross-sectional view of a paper cup according to an embodiment of the present application;

[0017] Figure 2 A cross-sectional view of a paper cup according to an embodiment of the present application;

[0018] Figure 3 A cross-sectional view of a paper cup according to an embodiment of the present application;

[0019] Figure 4 A cross-sectional view of a paper cup according to an embodiment of the present application;

[0020] Figure 5 A cross-sectional view of a paper cup according to an embodiment of the present application;

[0021] Figure 6 A cross-sectional view of a paper cup according to an embodiment of the present application.

[0022] The symbols in the drawings represent the following meanings:

[0023] 100: paper cup; 10: inner cup body; 101: cup mouth; 11: engaging portion; 20: outer cup body; 21: engaging portion. DETAILED DESCRIPTION

[0024] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, a lot of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many different ways other than those described herein, and one of ordinary skill in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0025] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on the other component or there can be an intervening component. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or there can be an intervening component. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the description of the specification are used for the purpose of explanation only and do not indicate the only mode of implementation.

[0026] In addition, the terms "first", "second", etc. are used only for the purpose of description and should not be construed as indicating or implying relative importance or an indicated number of technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0027] In the present application, unless explicitly specified and limited, the first feature is "on", "under" the second feature, which can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "below", "under" and "under" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0028] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0029] In daily life, paper cups are used as a low-cost container, convenient to carry, and often used to hold various beverages. At present, in order to improve the strength and heat insulation performance of the paper cup, an outer package is often sleeved on the circumferential side of the paper cup body to form a double-layer structure. In the related art, glue is often used to bond between the outer package and the inner cup body. However, on the one hand, the process is complex and the cost is high, and on the other hand, the glue has certain toxicity, and the glue will melt after being heated, which is easy to cause the outer package of the paper cup to fall off, thereby causing safety risks.

[0030] Please refer to Figures 1-6 In order to solve the problems of high cost and poor safety of the existing double-layer paper cup when using glue to bond, the present application provides a paper cup 100, which comprises an inner cup body 10 and an outer cup body 20. One end of the inner cup body 10 has a cup mouth 101, which can contain hot water or the like in the inner cup body 10 or pour out from the inner cup body 10, facilitating use. That is, in the present application, the inner cup body 10 plays a containing role, and the outer cup body 20 plays a role of strengthening the structural strength and heat insulation.

[0031] Specifically, the side wall of the inner cup body 10 protrudes in a direction away from its own axis to form a clamping portion 11, and the outer cup body 20 is sleeved on the outer periphery of the inner cup body 10. The outer cup body 20 is provided with a matching portion 21, and the matching portion 21 and the clamping portion 11 are limited and clamped to enable the outer cup body 20 and the inner cup body 10 to be clamped and matched.

[0032] It can be understood that the application can ensure the reliability of the connection between the inner cup body 10 and the outer cup body 20 by directly processing the clamping part 11 on the side wall of the inner cup body 10 and clamping and matching the clamping part 11 with the matching part 21 on the outer cup body 20, and preventing the outer cup body 20 from separating from the inner cup body 10, so that the traditional bonding mode can be cancelled, the cost is lower, and the safety is higher.

[0033] The clamping part 11 is arranged as an annular protruding structure extending in the circumferential direction of the inner cup body 10, which can be integrally formed during the processing of the inner cup body 10, is simple to form, does not need to be bonded, and can reduce the cost.

[0034] In an embodiment, as shown in Figures 1-6 In the embodiment, the cross-sectional area of the inner cup body 10 and the outer cup body 20 gradually increases in the axial direction of the paper cup 100 from the inside of the paper cup 100 to the cup opening 101. That is, the inner cup body 10 and the outer cup body 20 in the embodiment are both circular truncated cone structures that are large at the top and small at the bottom. When assembling, the outer cup body 20 can be sleeved on the outer periphery of the inner cup body 10 from the bottom of the inner cup body 10 upwards, and the outer cup body 20 can be naturally clamped with the inner cup body 10 along the angle of the conical surface, so as to prevent the movement of the outer cup body 20 in the axial direction of the paper cup 100 towards the cup opening 101.

[0035] It should be noted that the circular truncated cone here is shown by taking the cross-sectional shape of the outer cup body 20 and the inner cup body 10 as a circle. In other embodiments, the cross-sectional shape of the outer cup body 20 and the inner cup body 10 can also be an ellipse, or a polygonal structure such as a triangle, a square, a pentagon, a hexagon, etc., as long as the cross-sectional shape is large at the top and small at the bottom.

[0036] It should be noted that the upper direction here refers to the direction close to the cup opening 101 of the paper cup 100, and the lower direction refers to the direction away from the cup opening 101 of the paper cup 100.

[0037] Since the movement of the outer cup body 20 towards the cup opening 101 will be hindered by the conical surface of the inner cup body 10, the outer cup body 20 will not separate from the inner cup body 10 in the direction close to the cup opening 101. To prevent the outer cup body 20 from separating from the inner cup body 10 in the opposite direction of the installation direction, the application is realized by the cooperation between the clamping part 11 and the matching part 21.

[0038] The following specific embodiments are provided:

[0039] Embodiment one

[0040] In the embodiment, as shown in Figure 1As shown, the matching part 21 is configured as a clamping groove opened on the side wall of the outer cup body 20. Here, the clamping groove is formed by the side wall of the outer cup body 20 protruding in a direction away from the axis of itself, which is simple in structure and can reduce the cost. When the outer cup body 20 is sleeved on the outer periphery of the inner cup body 10, the clamping part 11 can extend into the clamping groove and be limitedly clamped with the clamping groove. In this way, the reliability of the connection between the inner cup body 10 and the outer cup body 20 is ensured.

[0041] It should be noted that in the present embodiment, since the two axial sides of the clamping part 11 and the two axial sides of the clamping groove can be respectively abutted to realize matching, the movement of the outer cup body 20 relative to the inner cup body 10 in the direction of approaching or moving away from the cup mouth 101 along the axis will be limited. Therefore, in the present embodiment, the outer cup body 20 and the inner cup body 10 do not need to be limited by a tapered surface, for example, the shapes of the outer cup body 20 and the inner cup body 10 can also be set as cylindrical and the like.

[0042] Embodiment Two

[0043] In the present embodiment, as shown, Figure 2 the matching part 21 is configured as a curled edge provided on the end of the outer cup body 20. Here, the curled edge can be curled inward from the end of the outer cup body 20, which is simple in structure and can reduce the cost. When the outer cup body 20 is sleeved on the outer periphery of the inner cup body 10, the side of the clamping part 11 close to the cup mouth 101 can be limitedly clamped with the matching part 21 to prevent the movement of the outer cup body 20 in the direction of moving away from the cup mouth 101 along the axis of the paper cup 100. In this way, the reliability of the connection between the inner cup body 10 and the outer cup body 20 is ensured, and the outer cup body 20 and the inner cup body 10 are prevented from being separated.

[0044] It can be understood that the inner diameter of the outer cup body 20 at the curled edge is smaller than the outer diameter of the inner cup body 10 at the clamping part 11, so that after assembly, the reliable limiting between the curled edge and the clamping part 11 can be ensured.

[0045] Specifically, in the present embodiment, the number of clamping parts 11 is one, and the clamping part 11 is provided on the side wall of the inner cup body 10 close to the cup mouth 101, and the number of matching parts 21 is one, and the matching part 21 is provided on one end of the outer cup body 20 close to the cup mouth 101. That is, in the present embodiment, the limiting clamping is realized by the upper end of the outer cup body 20 being overlapped with the clamping part 11.

[0046] Further, the end of the outer cup body 20 away from the matching part 21 is provided in abutment with the side wall of the inner cup body 10, that is, the lower end of the outer cup body 20 is provided in abutment with the side wall of the inner cup body 10. In this way, the contact area between the outer cup body 20 and the inner cup body 10 can be increased, and the reliability of the connection can be improved. Moreover, a hollow cavity can be formed between the outer cup body 20 and the inner cup body 10, so as to utilize the cavity for heat insulation, to ensure the safety of the user's hand when contacting the outer cup body 20, and to reduce the risk of scalding.

[0047] Embodiment Three

[0048] The structure of this embodiment is basically the same as that of Embodiment Two, and the same parts will not be repeated. The difference is that, as shown in the figure, the number of clamping portions 11 is one, and the clamping portion 11 is arranged on the side wall of the inner cup body 10 close to the cup mouth 101. The number of cooperating portions 21 is two, and the two cooperating portions 21 are arranged on the opposite ends of the outer cup body 20. Among them, the cooperating portion 21 arranged on the end of the outer cup body 20 close to the cup mouth 101 is limited and clamped with the side surface of the clamping portion 11 close to the cup mouth 101. Similarly, in this embodiment, the outer cup body 20 is clamped with the clamping portion 11 after the upper end of the outer cup body 20 is overlapped with the clamping portion 11 to realize the limited clamping. Figure 3 Here, the cooperating portion 21 arranged on the end of the outer cup body 20 away from the cup mouth 101 is also arranged in abutment with the side wall of the inner cup body 10, that is, the cooperating portion 21 at the lower end of the outer cup body 20 is arranged in abutment with the side wall of the inner cup body 10, so as to form a hollow heat insulation cavity, thereby improving the safety when the hand holds.

[0049] Embodiment Four

[0050] The structure of this embodiment is basically the same as that of Embodiment Two, and the same parts will not be repeated. The difference is that, as shown in the figure, the number of clamping portions 11 is one, and the clamping portion 11 is arranged on the side wall of the inner cup body 10 away from the cup mouth 101. Moreover, the number of cooperating portions 21 is one, and the cooperating portion 21 is arranged on the end of the outer cup body 20 away from the cup mouth 101. That is, in this embodiment, the outer cup body 20 is clamped with the clamping portion 11 after the lower end of the outer cup body 20 is overlapped with the clamping portion 11 to realize the limited clamping.

[0051] Figure 4 Among them, the end of the outer cup body 20 away from the cooperating portion 21 is arranged in abutment with the side wall of the inner cup body 10, that is, the upper end of the outer cup body 20 is arranged in abutment with the side wall of the inner cup body 10, so as to form a hollow heat insulation cavity, thereby improving the safety when the hand holds.

[0052] Embodiment Five

[0053] The structure of this embodiment is basically the same as that of Embodiment Two, and the same parts will not be repeated. The difference is that, as shown in the figure, the number of clamping portions 11 is one, and the clamping portion 11 is arranged on the side wall of the inner cup body 10 away from the cup mouth 101. Moreover, the number of cooperating portions 21 is two, and the two cooperating portions 21 are arranged on the opposite ends of the outer cup body 20. Among them, the cooperating portion 21 arranged on the end of the outer cup body 20 away from the cup mouth 101 is limited and clamped with the side surface of the clamping portion 11 close to the cup mouth 101. That is, in this embodiment, the outer cup body 20 is clamped with the clamping portion 11 after the lower end of the outer cup body 20 is overlapped with the clamping portion 11 to realize the limited clamping.

[0054] Among them, the end of the outer cup body 20 away from the cooperating portion 21 is arranged in abutment with the side wall of the inner cup body 10, that is, the upper end of the outer cup body 20 is arranged in abutment with the side wall of the inner cup body 10, so as to form a hollow heat insulation cavity, thereby improving the safety when the hand holds. Figure 5 ​​

[0055] Here, the mating part 21 located at the end of the outer cup body 20 away from the cup opening 101 is also fitted to the side wall of the inner cup body 10. That is, the mating part 21 located at the upper end of the outer cup body 20 is fitted to the side wall of the inner cup body 10 to form a hollow heat-insulating cavity, thereby improving the safety of hand grip.

[0056] Example 6

[0057] The structure of this embodiment is basically the same as that of embodiment two, and the similarities will not be repeated. The differences are as follows: Figure 6 As shown, there are two locking parts 11, which are spaced apart on the side wall of the inner cup body 10. There are also two mating parts 21, which are located at opposite ends of the outer cup body 20. Each mating part 21 engages with one of the locking parts 11 near the cup opening 101. This engagement of the two mating parts 21 and the two locking parts 11 further enhances the reliability of the positioning.

[0058] Example 7

[0059] In this embodiment, there are two snap-fit ​​parts 11, and the two snap-fit ​​parts 11 are spaced apart on the side wall of the inner cup body 10, forming a limiting groove. Further, the mating part 21 is snapped into the limiting groove, and the two sides of the mating part 21 at least partially abut against the two sides of the limiting groove, thereby limiting the axial movement of the outer cup body 20.

[0060] Here, the mating part 21 can also be configured as a rolled edge structure formed by the end of the outer cup body 20 being rolled inward.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A paper cup, characterized in that, It includes an inner cup body (10) and an outer cup body (20). One end of the inner cup body (10) has a cup mouth (101), and the side wall of the inner cup body (10) protrudes in a direction away from its own axis to form a snap-fit ​​part (11). The outer cup body (20) is fitted around the outer periphery of the inner cup body (10). The outer cup body (20) is provided with a mating part (21). The mating part (21) and the snap-fit ​​part (11) are locked together to make the outer cup body (20) and the inner cup body (10) snap-fit ​​together.

2. The paper cup according to claim 1, characterized in that, The mating part (21) is configured as a snap-fit ​​groove on the side wall of the outer cup body (20). When the outer cup body (20) is fitted onto the outer periphery of the inner cup body (10), the snap-fit ​​part (11) can extend into the snap-fit ​​groove and engage with the snap-fit ​​groove.

3. The paper cup according to claim 1, characterized in that, The mating part (21) is configured as a rolled edge at the end of the outer cup body (20). When the outer cup body (20) is fitted onto the outer periphery of the inner cup body (10), the side of the snap-fit ​​part (11) near the cup opening (101) can be locked and engaged with the mating part (21) to prevent the outer cup body (20) from moving away from the cup opening (101) along the axial direction of the paper cup.

4. The paper cup according to claim 3, characterized in that, The number of the snap-fit ​​part (11) is one, and the snap-fit ​​part (11) is provided on the side wall of the inner cup body (10) near the cup mouth (101). The number of the mating part (21) is one, and the mating part (21) is provided at one end of the outer cup body (20) near the cup mouth (101).

5. The paper cup according to claim 3, characterized in that, The number of the snap-fit ​​part (11) is one, and the snap-fit ​​part (11) is provided on the side wall of the inner cup body (10) near the cup mouth (101). The number of the mating parts (21) is two, and the two mating parts (21) are respectively provided at opposite ends of the outer cup body (20). The mating part (21) located at one end of the outer cup body (20) near the cup opening (101) is engaged with the snap-fit ​​part (11) on one side near the cup opening (101).

6. The paper cup according to claim 3, characterized in that, The number of the snap-fit ​​part (11) is one, and the snap-fit ​​part (11) is provided on the side wall of the inner cup body (10) away from the cup mouth (101). The number of the mating part (21) is one, and the mating part (21) is provided at the end of the outer cup body (20) away from the cup mouth (101).

7. The paper cup according to claim 4 or 6, characterized in that, The outer cup body (20) is positioned at one end away from the mating part (21) and is fitted to the side wall of the inner cup body (10).

8. The paper cup according to claim 3, characterized in that, The number of the snap-fit ​​part (11) is one, and the snap-fit ​​part (11) is provided on the side wall of the inner cup body (10) away from the cup mouth (101). The number of the mating parts (21) is two, and the two mating parts (21) are respectively provided at opposite ends of the outer cup body (20). The mating part (21) located at the end of the outer cup body (20) away from the cup opening (101) is engaged with the snap-fit ​​part (11) on the side near the cup opening (101).

9. The paper cup according to claim 3, characterized in that, The number of the snap-fit ​​parts (11) is two, and the two snap-fit ​​parts (11) are spaced apart on the side wall of the inner cup body (10). The number of the mating parts (21) is two, and the two mating parts (21) are respectively located at opposite ends of the outer cup body (20). Among them, the two mating parts (21) are respectively limited and locked to one side of the two locking parts (11) near the cup mouth (101).

10. The paper cup according to claim 1, characterized in that, Along the axial direction of the paper cup, and from the inside of the paper cup to the cup opening (101), the cross-sectional area of ​​the inner cup body (10) and the outer cup body (20) gradually increases.

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