Paper cup convenient for covering and sealing cup opening

Abstract

The paper cup comprises a cup body and a cup bottom fixed at the bottom of the cup body, the cup body is formed by lapping and bonding paper sheets end to end after the paper sheets are wound, a turned edge wound outwards is arranged at the cup opening of the cup body, and a lapping interface line at the cup opening of the cup body is obliquely wound along the turned edge. According to the paper cup, the lap joint interface line is obliquely arranged at the cup opening of the cup body along the curled edge, so that the lap joint step, located at the lap joint position, of the curled edge formed after the cup opening is wound is reduced, the fit clearance between the lap joint step and the cup cover is reduced, the cup opening and the cup cover can be covered and sealed conveniently, and liquid beverage in the paper cup is prevented from overflowing; and the matching length between the interface line of the cup opening and the cup cover is prolonged, and the contact area between the interface line and the cup cover is increased, so that the internal beverage is not easy to overflow.

Description

TECHNICAL FIELD

[0001] The utility model relates to paper cup structure technical field, concretely relates to a paper cup convenient to cup mouth cover and seal. BACKGROUND

[0002] Paper cup is a kind of paper container made by mechanical processing and bonding of raw paper made of chemical wood pulp, and its appearance is cup-shaped.Paper cup forming needs two parts of cup body and cup bottom;The cup body is a fan-shaped paper sheet, and the cup bottom is a circular paper sheet, then the cup body fan-shaped paper sheet and the cup bottom circular paper sheet are combined into a complete paper cup by using a paper cup forming machine.

[0003] In the process of paper cup forming, the cup body is formed by bonding after winding the paper sheet, and there is a lap joint interface step at the cup mouth part, and after the cup cover is buckled on the cup mouth during beverage serving, the step formed by the lap joint of the paper cup affects, so that there is a gap between the cup cover and the paper cup at the interface step, and the beverage in the cup is easy to overflow from the interface step of the cup mouth, which affects the use. INVENTION CONTENTS

[0004] The utility model aims at solving the above technical problem, and provides a paper cup convenient to cup mouth cover and seal.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A paper cup convenient to cup mouth cover and seal, including cup body and cup bottom fixed at the bottom of cup body, the cup body is formed by lap joint and bonding after winding the paper sheet, the cup mouth of cup body is provided with the edge of rolling outward, the lap joint interface line of cup mouth of cup body is inclined around the edge.

[0007] Further, the lap joint part is formed at the lap joint part of the cup body, the lap joint part is formed with the inner lap joint line on the inner side of the cup body and the outer lap joint line on the outer side of the cup body, the arc-shaped cutout is arranged on the inner side paper sheet of the cup mouth where the lap joint part is located, and the end of the arc-shaped cutout away from the inner lap joint line extends to the direction close to the outer lap joint line, so that the lap joint interface line is formed by the inclined lap joint interface line after the cup mouth is rolled.

[0008] Further, the lap joint interface line at the arc-shaped cutout includes a first inclined line segment and a second inclined line segment, a connecting round corner is arranged between the first inclined line segment and the inner lap joint line, a connecting round corner is arranged between the second inclined line segment and the first inclined line segment, and the included angle between the first inclined line segment and the inner lap joint line is smaller than the included angle between the second inclined line segment and the inner lap joint line.

[0009] Further, the overlapping edge of the inner side paper sheet of the cup body is provided with a metering notch.

[0010] Further, the inner side of the cup body is provided with a plurality of metering notches with different heights.

[0011] Further, the cup body is provided with a cup sleeve, the cup sleeve comprises a sleeve and a limiting ring fixed on the upper end of the sleeve, and the inner wall of the cup sleeve is matched with the outer wall of the cup body so that the inner wall of the cup sleeve is attached to the outer wall of the cup body. By providing the cup sleeve, the cup sleeve is sleeved on the cup body, so that the beverage in the paper cup can be heat-insulated, and the cup sleeve can be held when taking, so that the paper cup and the cup sleeve can be conveniently held.

[0012] Further, a plurality of baffles are arranged on the cup body, the baffles are arranged in parallel with the limiting ring, and the baffles are fixed on the cup sleeve in an up-down mode and below the limiting ring. By arranging the plurality of baffles, the baffles are located between the fingers when the cup sleeve is held, so that the paper cup and the cup sleeve can be conveniently held.

[0013] The paper cup provided by the utility model has the following beneficial effects: the overlapping interface line is arranged in an inclined mode along the edge of the cup mouth of the cup body, so that the overlapping step of the edge of the cup mouth is reduced after being rolled, the matching gap between the overlapping step and the cup cover is reduced, the cup mouth and the cup cover are conveniently sealed, liquid beverage in the paper cup is prevented from overflowing, the matching length between the interface line of the cup mouth and the cup cover is prolonged, the contact area with the cup cover is increased, the beverage in the interior is more difficult to overflow, the edge is easily rolled when being formed by arranging the arc-shaped notch, the injection amount of the beverage is known by visual observation when the beverage is prepared, and the amount of the beverage is conveniently controlled. BRIEF DESCRIPTION OF DRAWINGS

[0014] The specific embodiment of the utility model will be further described in detail in combination with the drawings:

[0015] Figure 1 The utility model provides a kind of paper cup of cup mouth sealing convenient for the three-dimensional structure schematic diagram of it;

[0016] Figure 2 The utility model provides a kind of paper cup of cup mouth sealing convenient for the sectional structure schematic diagram of it;

[0017] Figure 3 The utility model provides a kind of paper cup of cup mouth sealing convenient for the schematic diagram before the cup body paper sheet overlapping of it;

[0018] Figure 4The utility model provides a kind of paper cup of cup mouth cover combined sealing's paper piece's lap joint schematic diagram in paper cup provided by the utility model;

[0019] Figure 5 The utility model provides a kind of paper cup of cup mouth cover combined sealing's paper piece's lap joint schematic diagram in paper cup provided by the utility model;

[0020] Figure 6 The utility model provides a kind of paper cup of cup mouth cover combined sealing's paper piece's lap joint schematic diagram in paper cup provided by the utility model;

[0021] Figure 7 The utility model provides a kind of paper cup of cup mouth cover combined sealing's paper piece's lap joint schematic diagram in paper cup provided by the utility model;

[0022] Figure mark explanation: 1, cup body;2, cup bottom;3, edge;4, lap joint part;5, inner lap joint line;6, outer lap joint line;7, arc-shaped cutout;71, first oblique line segment;72, second oblique line segment;8, metering notch;9, cup sleeve;91, sleeve;92, limit ring;93, baffle. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are merely illustrative of the present application and do not limit the present application.

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0025] It should be noted that all directional indications (such as up-down-left-right-front-back...) in the embodiments of the present application are only used to explain the relative positional relationship-movement condition between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly. The connection can be direct connection or indirect connection.

[0026] As Figures 1-5 shown, a kind of paper cup of cup mouth cover combined sealing, including cup body 1 and the cup bottom 2 of fixed in the bottom of cup body 1, the cup body 1 is that paper piece is rolled after first tail lap joint and is bonded, the cup mouth of the cup body 1 is provided with the edge 3 of outward rolling, the cup mouth of the cup body 1 lap joint interface line is inclined around the edge 3 setting.

[0027] The technical scheme is adopted, the lap joint interface line is arranged obliquely along the curling edge 3 at the cup mouth of the cup body 1, so that the lap joint step of the curling edge 3 formed after the cup mouth is curled is reduced, the matching gap between the lap joint step and the cup cover is reduced, the cup mouth and the cup cover are sealed conveniently, and the liquid beverage in the paper cup is prevented from overflowing; and the matching length between the interface line of the cup mouth and the cup cover is prolonged, the contact area with the cup cover is increased, the internal beverage is more difficult to overflow, and the curling edge is easily curled and formed when the curling edge is formed.

[0028] The paper sheet of the cup body 1 is curled to form a lap joint portion 4 at the head and tail lap joint portion, the lap joint portion 4 is formed with an inner lap joint line 5 located on the inner side of the cup body 1 and an outer lap joint line 6 located on the outer side of the cup body 1, the lap joint portion 4 is provided with an arc-shaped cutout 7 on the inner side paper sheet at the cup mouth, and an end of the arc-shaped cutout 7 away from the inner lap joint line 5 extends obliquely towards the outer lap joint line, so that the lap joint interface line is formed obliquely after the curling edge 3 at the cup mouth is curled. The lap joint interface line is arranged obliquely from the inner side to the outer side along the inner lap joint line towards the outer lap joint line, so that the thickness of the lap joint portion 4 at the curling edge 3 position of the cup mouth is gradually reduced, the material curled in the curling edge 3 is reduced, the outer side paper sheet of the lap joint portion 4 is filled to the arc-shaped cutout 7 during curling, the cup mouth lap joint portion is leveled, the lap joint step height at the cup mouth is reduced, and the matching gap between the cup mouth and the cup cover is reduced.

[0029] The lap joint interface line at the arc-shaped cutout 7 includes a first inclined line segment 71 and a second inclined line segment 72, a connecting round corner is arranged between the first inclined line segment 71 and the inner lap joint line 5, a connecting round corner is arranged between the second inclined line segment 72 and the first inclined line segment 71, and the included angle a between the first inclined line segment 71 and the inner lap joint line 5 is smaller than the included angle b between the second inclined line segment 72 and the inner lap joint line 5. The two inclined line segments are matched, so that the contact surface of the cup mouth and the cup cover is increased, the cutout of the cup mouth is not curled and formed when the curling edge 3 is curled, and the curling edge 3 is conveniently curled and formed. Specifically, the round corner radius r of the connecting round corner is 2.6 mm-3.6 mm.

[0030] A measuring notch 8 is arranged on the lap joint edge of the inner side paper sheet of the lap joint portion 4 of the cup body 1. Therefore, the injection amount of the beverage can be known by visual observation when the beverage is poured, and the amount of the material added is conveniently controlled. The measuring notch 8 is arranged in the form of a notch, so that the measuring notch 8 is conveniently machined and cut at the same time when the raw paper sheet is cut, and does not need to be machined again. The inner side of the cup body 1 is provided with a plurality of measuring notches 8 with different heights. The plurality of measuring notches 8 are arranged, so that the amount of different materials added can be visually observed. For example, water can be added to one of the measuring notches 8, and then auxiliary materials can be added to the upper one of the measuring notches 8. Specifically, the measuring notch 8 is arranged in a triangular shape.

[0031] In another embodiment, as shown in Figures 6-7As shown, the cup body 1 is sleeved with a cup sleeve 9, the cup sleeve 9 comprises a sleeve 91 and a limiting ring 92 fixed on the upper end of the sleeve 91, the inner wall of the cup sleeve 9 matches the outer wall of the cup body 1 so that the inner wall of the cup sleeve 9 is attached to the outer wall of the cup body 1. By setting the cup sleeve 9, the cup sleeve 9 is sleeved on the cup body 1, so that the beverage in the paper cup can be insulated, and the cup sleeve 9 can be held tightly when taking, so that the hand is not scalded by the beverage in the paper cup; in addition, the limiting ring 92 is arranged on the sleeve 91, the limiting ring 92 is above the fingers when holding, so that the paper cup and the cup sleeve 9 are not slipped down from the hand, and the limiting ring 92 can increase the structural strength of the upper end of the sleeve 91, so that the upper end of the sleeve 91 is not broken; in addition, the inner wall of the cup sleeve 9 matches the outer wall of the cup body 1, so that the contact area of the cup body 1 and the cup sleeve 9 is increased, and the cup sleeve 9 and the cup body 1 are not loose.

[0032] A plurality of baffle plates 93 are arranged on the cup body 1, the baffle plates 93 are arranged in parallel with the limiting ring 92, and the plurality of baffle plates 93 are fixed on the cup sleeve 9 upwards and downwards and below the limiting ring 92. By arranging the plurality of baffle plates 93, when the cup sleeve 9 is held, the baffle plates 93 are between the fingers, so that the paper cup and the cup sleeve 9 are conveniently taken.

[0033] The part not involved in the technical scheme can be realized by using the prior art.

[0034] The basic principle, main features and characteristics of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application includes the appended claims and their equivalents.

Claims

1. A paper cup facilitating the closure of the mouth of the cup, characterized in that: The cup body (1) is formed by winding paper sheets and then connecting the first end to the last end, and a cup edge (3) is wound outward at the cup opening of the cup body (1), and the joint line at the joint is inclined around the cup edge (3).

2. A paper cup facilitating the sealing of the rim with a lid as claimed in claim 1, characterized in that: The joint part (4) of the cup body (1) is formed by winding the first end to the last end of the paper sheets, and the joint part (4) is formed with an inner joint line (5) inside the cup body (1) and an outer joint line (6) outside the cup body (1), and an arc-shaped cutout (7) is formed on the inner paper sheet of the cup opening, and the arc-shaped cutout (7) extends away from the inner joint line (5) to the outer joint line (6) to form an inclined joint line after winding the cup edge (3) at the cup opening.

3. A paper cup facilitating the sealing of the rim with a lid as claimed in claim 2, characterized in that: The joint line at the arc-shaped cutout (7) includes a first inclined line segment (71) and a second inclined line segment (72), the first inclined line segment (71) and the inner joint line (5) are connected by a connecting round corner, the second inclined line segment (72) and the first inclined line segment (71) are connected by a connecting round corner, and the included angle between the first inclined line segment (71) and the inner joint line (5) is smaller than the included angle between the second inclined line segment (72) and the inner joint line (5).

4. The paper cup of claim 1, wherein: A measuring notch (8) is formed on the joint edge of the inner paper sheet of the joint part (4) of the cup body (1).

5. A paper cup facilitating the sealing of the rim with a lid as claimed in claim 4, characterized in that: A plurality of measuring notches (8) with different heights are arranged on the inner side of the cup body (1).

6. A paper cup facilitating a sealable closure of the mouth of the cup according to any one of claims 1 to 5, characterized in that: A cup sleeve (9) is arranged on the cup body (1), the cup sleeve (9) includes a sleeve (91) and a limiting ring (92) fixed on the upper end of the sleeve (91), and the inner wall of the cup sleeve (9) matches the outer wall of the cup body (1) to make the inner wall of the cup sleeve (9) fit on the outer wall of the cup body (1).

7. A paper cup facilitating the sealing of the rim with a lid as claimed in claim 6, characterized in that: A plurality of baffle plates (93) are arranged on the cup body (1), the baffle plates (93) are arranged parallel to the limiting ring (92), and the plurality of baffle plates (93) are fixed on the cup sleeve (9) above and below and below the limiting ring (92).

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