Paper cup and cup

Abstract

The utility model provides a paper cup capable of being detachably connected with a cup cover. The paper cup comprises a cup body and a fixing piece. The cup body comprises a cup bottom, a cup body and an extension part, the cup bottom is connected to one end of the cup body, a containing cavity is defined by the cup body and the cup bottom, a cup opening is formed in the other end of the cup body, the extension part is integrally connected to the cup body and surrounds the cup opening of the cup body, and the extension part is bent towards the outer side of the cup opening relative to the cup body; one side of the extension part away from the cup bottom is provided with a first extension surface; the fixing piece is fixedly connected to the extending part, the fixing piece arranged around the cup opening makes contact with and covers the first extending face, and the fixing piece is used for being detachably connected to the cup cover. According to the paper cup provided by the utility model, the smoothness of the edge of the paper cup is higher. The utility model further provides a cup which comprises a cup cover and the paper cup. The elastic cup cover can be detachably connected to the paper cup; the inner wall of the containing groove of the cup cover can clamp the fixing piece. According to the cup provided by the embodiment of the utility model, the detachable connection between the cup cover and the paper cup is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of paper cups, in particular to a paper cup and a cup. Background Art

[0002] In the related art, a paper cup is usually composed of a cup body and a cup bottom. During the processing, the cup body needs to be curled into a cylindrical structure by cutting the bottom paper, and a curling mouth is processed on the side of the cup body close to the cup mouth. In order to prevent the liquid in the paper cup from leaking from the seam of the cup body, it is usually necessary to set an overlapping area on the cup body during the processing. After the edge of the cup body is rolled into a curling mouth, since the overlapping area of ​​the cup body is thicker than other areas, the curling mouth of the paper cup will bulge at the overlapping area, causing the edge of the paper cup mouth to be uneven. When the paper cup is covered with a cup lid, the bulge of the edge of the paper cup mouth may cause a gap between the cup lid and the edge of the paper cup, and the liquid in the paper cup may spill out from the gap. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a paper cup with a higher flatness of the edge of the paper cup.

[0004] The utility model also provides a cup having the paper cup.

[0005] According to the first aspect of the present invention, the paper cup can be detachably connected to the cup cover, and the paper cup includes:

[0006] A cup body, the cup body comprising a cup bottom, a cup body and an extension portion, the cup bottom being connected to one end of the cup body, the cup body and the cup bottom defining a receiving cavity, the other end of the cup body having a cup opening communicating with the receiving cavity, the extension portion being integrally connected to the cup body and surrounding the cup opening of the cup body, the extension portion being bent toward the outer side of the cup opening relative to the cup body; the extension portion having a first extension surface on a side away from the cup bottom;

[0007] A fixing member, wherein the fixing member is fixedly connected to the extension portion, the fixing member is arranged around the cup mouth, the fixing member contacts and covers the first extension surface, and the fixing member is used for being detachably connected to the cup cover.

[0008] The paper cup according to the embodiment of the utility model has at least the following beneficial effects:

[0009] The extension portion of the paper cup body is fixedly connected to a fixing member for detachably connecting with the cup cover. A person skilled in the art can process the fixing member that contacts and covers the first extension surface to make the surface of the area where the fixing member contacts the cup cover smoother, thereby making the liquid in the accommodating cavity less likely to leak. In addition, the fixing member fixedly connected to the extension portion can replace the rolled mouth of the existing paper cup to reinforce the paper cup, making the paper cup less likely to deform.

[0010] According to some embodiments of the present invention, the fixing member is connected to the extension portion by injection molding.

[0011] According to some embodiments of the utility model, the cup body is a cylindrical structure formed by a main line rotating around an axis, and the cup bottom and the cup mouth are respectively located at the two ends of the cup body in a direction parallel to the axis; the fixing part has a first sealing surface, which is an annular surface formed by a line segment rotating around the axis, and the first sealing surface is used to contact with the cup cover.

[0012] According to some embodiments of the present invention, the first sealing surface is an annular plane and the first sealing surface is perpendicular to the axis of the cup body.

[0013] According to some embodiments of the present invention, the extension portion further has a second extension surface, the second extension surface is located on a side of the extension portion close to the cup bottom, and the fixing member at least covers a portion of the second extension surface.

[0014] According to some embodiments of the utility model, the fixing member includes a first fixing portion and a second fixing portion, the first fixing portion is integrally connected to the second fixing portion, and the first fixing portion contacts and covers the first extension surface; the second fixing portion includes a plurality of fixing teeth, the plurality of fixing teeth are evenly distributed in the circumferential direction of the cup mouth, and the plurality of fixing teeth partially cover the second extension surface.

[0015] According to some embodiments of the utility model, the cup body is a cylindrical structure formed by rotating a busbar around an axis, and the inner side of the cup body has an inner wall surface; the fixing piece has a docking surface, and the docking surface is connected to the inner wall surface and flush with the inner wall surface.

[0016] The cup according to the second embodiment of the utility model comprises:

[0017] A paper cup as described in any one of the above embodiments;

[0018] The cup cover is elastic and can be detachably connected to a paper cup as described in any one of the above embodiments; the cup cover has a receiving groove, and when the cup cover is detachably connected to the paper cup, two opposite inner walls of the receiving groove clamp the fixing member.

[0019] The cup according to the embodiment of the utility model has at least the following beneficial effects: when the paper cup is detachably connected to the cup cover, the two opposite inner walls of the receiving groove can clamp the fixing member, so that the detachable connection between the cup cover and the paper cup is more stable. On the other hand, those skilled in the art can process the fixing member of the paper cup detachably connected to the cup cover, so that the surface of the area where the fixing member contacts the cup cover is smoother, so that the liquid in the receiving cavity is less likely to leak.

[0020] According to some embodiments of the present invention, the cup cover includes a cover body and a first protrusion, the cover body has the accommodating groove, and the first protrusion protrudes toward the inside of the accommodating groove relative to the wall surface of the accommodating groove; when the cup cover is detachably connected to the paper cup, the first protrusion is closer to the bottom of the cup than the fixing member, and the first protrusion faces the axis of the cup body.

[0021] According to some embodiments of the present invention, the cup cover includes a cover body and a second protrusion, the cover body has the accommodating groove, and the second protrusion protrudes toward the interior of the accommodating groove relative to the wall surface of the accommodating groove; when the cup cover is detachably connected to the paper cup, the second protrusion abuts against the fixing member in the circumferential direction of the fixing member.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 sectional views of paper cups according to some embodiments of the first aspect of the utility model;

[0025] Figure 2 for Figure 1 A partial enlarged view of the middle A;

[0026] Figure 3 for Figure 1 A three-dimensional schematic diagram of the cup body of the paper cup shown;

[0027] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0028] Figure 5 for Figure 1 A three-dimensional schematic diagram of a paper cup shown;

[0029] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0030] Figure 7 sectional views of cups according to some embodiments of the second aspect of the present invention;

[0031] Figure 8 for Figure 7 A partial enlarged view of point D in the middle.

[0032] Reference numerals:

[0033] Paper cup 100;

[0034] Cup body 110, cup bottom 111, cup body 112, cup mouth 1121, inner wall surface 1122, extension portion 113, first extension surface 1131, second extension surface 1132, accommodating cavity 114, fixing member 120, first sealing surface 121, first fixing portion 122, second fixing portion 123, fixing teeth 1231, docking surface 124, winding seam 126, protruding portion 127;

[0035] Cup lid 200;

[0036] The receiving groove 210 , the cover body 220 , the first protrusion 230 , and the second protrusion 240 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the utility model proposes a paper cup 100 that can be detachably connected to a cup cover, including a cup body 110 and a fixing member 120; the cup body 110 includes a cup bottom 111, a cup body 112 and an extension portion 113, the cup bottom 111 is connected to one end of the cup body 112, the cup body 112 and the cup bottom 111 define a receiving cavity 114, the other end of the cup body 112 has a cup mouth 1121 connected to the receiving cavity 114, the extension portion 113 is integrally connected to the cup body 112 and surrounds the cup mouth 1121 of the cup body 112, the extension portion 113 is bent toward the outer side of the cup mouth 1121 relative to the cup body 112; the side of the extension portion 113 away from the cup bottom 111 has a first extension surface 1131; the fixing member 120 is fixedly connected to the extension portion 113, the fixing member 120 is arranged around the cup mouth 1121, the fixing member 120 contacts and covers the first extension surface 1131, and the fixing member 120 is used for being detachably connected to the cup cover.

[0043] Through the above scheme, the extension part 113 of the cup body 110 of the paper cup 100 is fixedly connected to the fixing member 120 for detachably connecting with the cup cover. The technicians in this field can process the fixing member 120 that contacts and covers the first extension surface 1131 to make the surface of the area where the fixing member 120 contacts the cup cover smoother, so that the liquid in the accommodating cavity 114 is less likely to leak; in addition, the fixing member 120 fixedly connected to the extension part 113 can replace the rolled mouth in the existing paper cup to reinforce the paper cup, so that the paper cup is less likely to deform.

[0044] For more information, see Figure 3 , Figure 4As shown, according to some embodiments of the first aspect of the present invention, the cup body 110 of the paper cup 100 is a rolled structure formed by winding the cut and shaped paper, and the upper edge of the rolled cup body 110 is bent toward the outside of the rolled cup mouth 1121 to form an extension portion 113 of the cup body 110, and the relatively bent portion of the cup body 110 forms the cup body 112 of the cup body 110. The extension portion 113 surrounds the cup mouth 1121 and extends toward the outside of the cup body 112 relative to the cup body 112, and the first extension surface 1131 is located on the side of the extension portion 113 away from the cup bottom 111 (that is, Figure 3 shown above).

[0045] In the prior art, in order to ensure the forming of the paper cup 100, the two sides of the paper used to be rolled into the cup body 110 need to be butted together to form a cylindrical structure; and in order to prevent the liquid in the cylindrical structure from leaking from the butt joint in the cylindrical structure, those skilled in the art will set an overlapping area on the cup body 110 during the processing, and the two sides of the paper used to be rolled into the cup body 110 will overlap each other in the thickness direction to form the above-mentioned overlapping area, so the thickness of the cup body 110 in the overlapping area will be thicker than other areas; in order to strengthen the paper cup 100, the edge of the cup body 110 will be processed with a rolled mouth, and the overlapping area of ​​the rolled mouth will also be thicker than other areas of the rolled mouth, which will reduce the flatness of the top of the cup body 110. Please refer to Figure 3 As shown, the cup body 110 of the present invention is wound in the above-mentioned manner, and a folding area is also formed on the cup body 110, and the inner and outer sides of the folding area on the cup body 110 respectively form a winding seam 126; please refer to Figure 4 As shown, the corresponding folded area on the extension portion 113 will form a protrusion 127 that is raised relative to other areas, so that the flatness of the first extension surface 1131 decreases.

[0046] Please refer to Figure 1 , Figure 2 , Figure 3 As shown, Figure 1 , Figure 2 The cup body 110 shown in Figure 3The same as the cup body 110 shown, according to some embodiments of the first aspect of the utility model, the fixing member 120 is fixedly connected to the extension portion 113 and covers the first extension surface 1131. The fixing member 120 for detachably connecting to the cup cover covers the first extension surface 1131, which is equivalent to using the material of the fixing member 120 to increase the thickness of other areas on the extension portion 113 except the folding area. Those skilled in the art can increase the flatness of the edge of the cup body 110 by adjusting the shape of the fixing member 120. Those skilled in the art can also increase the assembly accuracy between the fixing member 120 and the cup cover when the paper cup 100 is detachably connected to the cup cover through the fixing member 120 by adjusting the shape of the fixing member 120, thereby reducing the risk of liquid placed in the accommodating cavity leaking from the edge of the cup body 110 and the cup cover.

[0047] It should be noted that the fixing member 120 is used in the above embodiment to replace the roll mouth in the prior art to fix the edge of the paper cup 100, which can save the processing steps of the roll mouth and reduce the processing cost. Without departing from the inventive concept of the utility model, the paper cup 100 with a roll mouth in the prior art will also have a local protrusion on the roll mouth, so the roll mouth on the paper cup 100 should be regarded as a special extension 113, and the side of the roll mouth away from the cup bottom 111 has a first extension surface 1131; those skilled in the art can also set the fixing member 120 on the paper cup 100 with a roll mouth to further increase the flatness and strength of the edge of the paper cup 100; additionally setting the fixing member 120 on the paper cup 100 with a roll mouth should also be within the protection scope of the utility model.

[0048] Furthermore, those skilled in the art can form the fixing member 120 by directly injecting glue on the extension portion 113, or can achieve the fixed connection between the fixing member 120 and the extension portion 113 by gluing the fixing member 120 to the extension portion 113. As a preferred embodiment, the fixing member 120 is connected to the extension portion 113 by injection molding. The fixing member 120 formed by the injection mold can limit the shape of the fixing member 120 by the surface used to mold the fixing member 120 in the injection mold, and those skilled in the art can directly increase the flatness of the edge of the paper cup 100 by increasing the mold precision. It should be noted that the above-mentioned injection molding method can be applied to various types of paper cups, such as milk tea cups, coffee cups, etc.

[0049] Furthermore, the cup body 112 is a cylindrical structure formed by rotating a busbar around an axis, and the cup bottom 111 and the cup mouth 1121 are respectively located at the two ends of the cup body 112 in a direction parallel to the axis; the fixing member 120 has a first sealing surface 121, and the first sealing surface 121 is an annular surface formed by rotating a line segment around the axis, and the first sealing surface 121 is used to contact with the cup cover. Through the above scheme, the first sealing surface 121 completely surrounds the circumference of the cup mouth 1121, so that the fixing member 120 can form an annular surface contact with the cup cover through the first sealing surface 121, thereby preventing the liquid in the accommodating chamber from leaking from between the cup cover and the first sealing surface 121 in the circumferential direction; and because the fixing member 120 can form an annular surface contact with the cup cover through the first sealing surface 121, the liquid in the accommodating chamber is more difficult to leak from between the cup cover and the first sealing surface 121 along the radial direction of the cup body 112. On the other hand, the above-mentioned solution of connecting the fixing member 120 to the extension portion 113 by injection molding is described. Based on the above solution, the first sealing surface 121 can be processed more easily by injection molding and the flatness of the first sealing surface 121 can be improved.

[0050] As a preferred solution to the above, please refer to Figure 1 , Figure 2 As shown, the first sealing surface 121 is an annular plane and is perpendicular to the axis of the cup body 112. The first sealing surface 121 perpendicular to the axis of the cup body 112 is more conducive to the detachable connection of the fixing member 120 to various cup lids, and can also more effectively seal the liquid in the accommodating cavity with the cup lid.

[0051] Specifically, according to some embodiments of the first aspect of the utility model, the fixing member 120 is arranged around the cup mouth 1121 and has a first sealing surface 121 surrounding the cup mouth 1121, and the first sealing surface 121 is perpendicular to the axis of the cup body 112 parallel to the up and down directions; when the cup lid covers the cup mouth 1121 downward, the force of the cup lid covering the cup body 112 is increased, so that the first sealing surface 121 can be more closely contacted with the cup lid, thereby further reducing the gap between the first sealing surface 121 and the cup lid, and preventing the liquid sealed in the accommodating cavity from leaking.

[0052] For further information, please refer to Figure 1 , Figure 2As shown, the extension portion 113 further has a second extension surface 1132, and the second extension surface 1132 is located on a side of the extension portion 113 close to the cup bottom 111, and the fixing member 120 covers at least a portion of the second extension surface 1132. Through the above solution, the fixing member 120 covers the first extension surface 1131 on the extension portion 113 away from the cup bottom 111 and partially covers the second extension surface 1132 close to the cup bottom 111, so that the part of the fixing member 120 close to the cup bottom 111 and the part of the fixing member 120 away from the cup bottom 111 jointly clamp the extension portion 113, thereby enhancing the fixed connection relationship between the fixing member 120 and the extension portion 113.

[0053] For more information, see Figure 2 As shown, according to some embodiments of the first aspect of the present invention, the extension portion 113 surrounds the cup mouth 1121 and extends toward the outside of the cup body 112 relative to the cup body 112, and the first extension surface 1131 is located on the side of the extension portion 113 away from the cup bottom 111 (i.e. Figure 1 , Figure 2 The second extension surface 1132 is located on the side of the extension portion 113 close to the cup bottom 111 (ie Figure 1 , Figure 2 The movement of the fixing member 120 covering the first extension surface 1131 and the second extension surface 1132 in the up and down directions will be restricted by the first extension surface 1131 and the second extension surface 1132, so that the fixed connection between the fixing member 120 and the extension portion 113 is more firmly secured.

[0054] It should be noted that, since the extension portion 113 in the above embodiment is directly formed by bending the edge of the upper side of the cup body 110, the first extension surface 1131 and the second extension surface 1132 in the above embodiment are respectively located on both sides of the thickness direction of the extension portion 113. The above has described the scheme of setting the fixing member 120 on the paper cup 100 with a rolled mouth. On this basis, the fixing member 120 can also cover the side of the rolled mouth close to the cup bottom 111 and the side away from the cup bottom 111 at the same time to enhance the fixed connection relationship between the fixing member 120 and the rolled mouth.

[0055] For further information, please refer to Figure 1 , Figure 2 , Figure 5 , Figure 6As shown, the fixing member 120 includes a first fixing portion 122 and a second fixing portion 123, the first fixing portion 122 is integrally connected to the second fixing portion 123, the first fixing portion 122 contacts and covers the first extension surface 1131; the second fixing portion 123 includes a plurality of fixing teeth 1231, the plurality of fixing teeth 1231 are evenly distributed in the circumferential direction of the cup mouth 1121, and the plurality of fixing teeth 1231 partially cover the second extension surface 1132. Through the above scheme, the fixing member 120 covers the first extension surface 1131 away from the cup bottom 111 on the extension portion 113, and partially covers the second extension surface 1132 close to the cup bottom 111, so that the first fixing portion 122 of the fixing member 120 and the second fixing portion 123 of the fixing member 120 jointly clamp the extension portion 113, thereby enhancing the fixed connection relationship between the fixing member 120 and the extension portion 113, and can reduce the material consumption of the fixing member 120, thereby reducing the overall weight of the paper cup 100.

[0056] For more information, see Figure 5 , Figure 6 As shown, according to some embodiments of the first aspect of the present invention, the second fixing portion 123 of the fixing member 120 is located on a side of the extension portion 113 close to the cup bottom 111 (ie Figure 5 As shown below, a plurality of fixing teeth 1231 extend into the bottom of the extension portion 113 in the opposite direction of the extension direction of the extension portion 113 and contact the extension portion 113. Without departing from the inventive concept of the utility model, those skilled in the art can design the specific shape of the fixing teeth 1231 according to actual needs.

[0057] For further information, please refer to Figure 1 , Figure 2 As shown, the cup body 112 is a cylindrical structure formed by rotating a generatrix around an axis, and the inner side of the cup body 112 has an inner wall surface 1122; the fixing member 120 has a docking surface 124, and the docking surface 124 docks with the inner wall surface 1122 and is flush with the inner wall surface 1122. Through the above scheme, when it is necessary to pour out the liquid from the accommodating cavity, the liquid in the accommodating cavity can smoothly flow from the inner wall surface 1122 to the docking surface 124, thereby preventing the liquid from remaining between the fixing member 120 and the cup body 112.

[0058] On the other hand, the above-mentioned solution of connecting the fixing part 120 to the extension part 113 by injection molding, on the basis of the above solution, in the process of processing the fixing part 120 by injection molding, the injection mold can use the inner wall surface 1122 of the cup body 112 as a reference, and form a docking surface 124 flush with the inner wall surface 1122 on the fixing part 120, thereby reducing the complexity of the injection mold design.

[0059] Please refer to Figure 7 , Figure 8As shown, the utility model also proposes a cup, including a cup cover 200 and a paper cup 100 as in any of the above embodiments; the cup cover 200 is elastic, and the cup cover 200 can be detachably connected to the paper cup 100 in any of the above embodiments; the cup cover 200 has a receiving groove 210, and when the cup cover 200 is detachably connected to the paper cup 100, the two opposite inner walls of the receiving groove 210 clamp the fixing member 120. Through the above scheme, when the paper cup 100 is detachably connected to the cup cover 200, the two opposite inner walls of the receiving groove 210 clamp the fixing member 120, so that the detachable connection between the cup cover 200 and the paper cup 100 is more stable. On the other hand, those skilled in the art can process the fixing member 120 of the paper cup 100 detachably connected to the cup cover 200, so that the surface of the area where the fixing member 120 contacts the cup cover 200 is smoother, so that the liquid in the receiving cavity 114 is less likely to leak from between the paper cup 100 and the cup cover 200.

[0060] For more information, see Figure 3 , Figure 7 , Figure 8 As shown, Figure 7 , Figure 8 The paper cup 100 shown in Figure 3 The same as the paper cup 100 shown in the figure, according to some embodiments of the second aspect of the utility model, the cup cover 200 has a accommodating groove 210 opening downwardly on the circumference; when the paper cup 100 is detachably connected to the cup cover 200, Figure 8 As an example, the side of the receiving groove 210 close to the cup body 110 (i.e. Figure 8 The wall of the right side shown in FIG. 110 and the side away from the cup body 110 (i.e. Figure 8 The wall surfaces of the receiving groove 210 (shown on the left side) together clamp the fixing member 120 in the horizontal direction. Through the above description, those skilled in the art can understand how the two opposite inner walls of the receiving groove 210 clamp the fixing member 120 when the paper cup 100 is detachably connected to the cup cover 200.

[0061] The above-mentioned solution of setting the first sealing surface 121 on the fixing member 120 and the first sealing surface 121 being an annular plane perpendicular to the axis of the cup body 112 has been described. Based on the above solution, please refer to Figure 1 , Figure 2 , Figure 7 , Figure 8As shown, according to some embodiments of the second aspect of the utility model, when the paper cup 100 is detachably connected to the cup cover 200, the wall surface of the accommodating groove 210 on the side close to the cup body 110 and the wall surface on the side away from the cup body 110 jointly clamp the fixing member 120 in the horizontal direction, and the first sealing surface 121 contacts the cup cover 200. The three contact positions between the cup cover 200 and the paper cup 100 can further prevent the liquid in the accommodating cavity from leaking from between the cup cover 200 and the paper cup 100.

[0062] It should be noted that, without departing from the inventive concept of the utility model, those skilled in the art can adjust the opening direction of the receiving groove 210 according to actual conditions. For example, the opening of the receiving groove 210 can be directed toward the inner side of the cup body 110, and the fixing member 120 can be clamped by the inner walls of the upper and lower sides of the receiving groove 210. On the other hand, those skilled in the art can also make one inner wall of the receiving groove 210 abut against the first sealing surface 121 when the paper cup 100 is detachably connected to the cup cover 200.

[0063] For further information, please refer to Figure 7 , Figure 8 As shown, the cup cover 200 includes a cover body 220 and a first protrusion 230, the cover body 220 has a receiving groove 210, and the first protrusion 230 protrudes toward the inside of the receiving groove 210 relative to the wall of the receiving groove 210; when the cup cover 200 is detachably connected to the paper cup 100, the first protrusion 230 is closer to the cup bottom 111 than the fixing part 120, and the first protrusion 230 faces the axis of the cup body 110. Through the above scheme, when the detachable connection between the cup cover 200 and the paper cup 100 is released, the first protrusion 230 close to the cup bottom 111 and protruding toward the axis of the cup body 110 can limit the cup cover 200 from moving further away from the cup bottom 111 relative to the paper cup 100, thereby preventing the cup cover 200 from being completely separated from the paper cup 100 when the fixing member 120 accidentally detaches from the receiving groove 210, and preventing the paper cup 100 from accidentally detaching from the cup cover 200, thereby preventing the liquid in the receiving cavity from spilling from the side close to the cup cover 200.

[0064] For further information, please refer to Figure 7 , Figure 8 As shown, the cup cover 200 includes a cover body 220 and a second protrusion 240, the cover body 220 has a receiving groove 210, and the second protrusion 240 protrudes toward the inside of the receiving groove 210 relative to the wall surface of the receiving groove 210; when the cup cover 200 is detachably connected to the paper cup 100, the second protrusion 240 abuts against the fixing member 120 in the circumferential direction of the fixing member 120. Through the above solution, the second protrusion 240 can cooperate with the inner wall of the receiving groove 210 to clamp the fixing member 120, thereby enhancing the sealing effect.

[0065] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A paper cup, which can be detachably connected to a cup cover, characterized in that: The paper cup comprises: A cup body, the cup body comprising a cup bottom, a cup body and an extension portion, the cup bottom being connected to one end of the cup body, the cup body and the cup bottom defining a receiving cavity, the other end of the cup body having a cup opening communicating with the receiving cavity, the extension portion being integrally connected to the cup body and surrounding the cup opening of the cup body, the extension portion being bent toward the outer side of the cup opening relative to the cup body; the extension portion having a first extension surface on a side away from the cup bottom; A fixing member, wherein the fixing member is fixedly connected to the extension portion, the fixing member is arranged around the cup mouth, the fixing member contacts and covers the first extension surface, and the fixing member is used for being detachably connected to the cup cover.

2. The paper cup according to claim 1, characterized in that: The fixing piece is connected to the extension part by injection molding.

3. The paper cup according to claim 1 or 2, characterized in that: The cup body is a cylindrical structure formed by rotating a main line around an axis, and the cup bottom and the cup mouth are respectively located at the two ends of the cup body in a direction parallel to the axis; the fixing part has a first sealing surface, which is an annular surface formed by rotating a line segment around the axis, and the first sealing surface is used to contact with the cup cover.

4. The paper cup according to claim 3, characterized in that: The first sealing surface is an annular plane and is perpendicular to the axis of the cup body.

5. The paper cup according to claim 1 or 2, characterized in that: The extension portion further has a second extension surface, which is located on a side of the extension portion close to the cup bottom, and the fixing member at least covers a portion of the second extension surface.

6. The paper cup according to claim 5, characterized in that: The fixing member includes a first fixing portion and a second fixing portion, the first fixing portion is integrally connected to the second fixing portion, and the first fixing portion contacts and covers the first extension surface; the second fixing portion includes a plurality of fixing teeth, the plurality of fixing teeth are evenly distributed in the circumferential direction of the cup mouth, and the plurality of fixing teeth partially cover the second extension surface.

7. The paper cup according to claim 1 or 2, characterized in that: The cup body is a cylindrical structure formed by rotating a generatrix around an axis, and the inner side of the cup body has an inner wall surface; the fixing piece has a docking surface, and the docking surface is connected to the inner wall surface and is flush with the inner wall surface.

8. A cup, characterized in that include: The paper cup according to any one of claims 1 to 7; A cup cover, wherein the cup cover is elastic and can be detachably connected to the paper cup according to any one of claims 1 to 7; the cup cover has a receiving groove, and when the cup cover is detachably connected to the paper cup, two opposite inner walls of the receiving groove clamp the fixing member.

9. The cup according to claim 8, characterized in that: The cup cover includes a cover body and a first protrusion, the cover body has the receiving groove, and the first protrusion protrudes toward the inside of the receiving groove relative to the wall surface of the receiving groove; when the cup cover is detachably connected to the paper cup, the first protrusion is closer to the bottom of the cup than the fixing part, and the first protrusion faces the axis of the cup body.

10. The cup according to claim 8, characterized in that: The cup cover includes a cover body and a second protrusion, wherein the cover body has the receiving groove, and the second protrusion protrudes toward the inside of the receiving groove relative to the wall surface of the receiving groove; when the cup cover is detachably connected to the paper cup, the second protrusion abuts against the fixing member in the circumferential direction of the fixing member.

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