Disposable paper container with special turned edge

Abstract

The utility model discloses a disposable paper container with a special curled edge, which comprises an outer ring piece, the bottom of the outer ring piece is provided with an opening, the peripheral side of the outer ring piece forms a side part with inclination, the side part is provided with a slope surface, the upper edge of the slope surface extends outwards and downwards to form an end edge, the end edge is provided with the special curled edge, the special curled edge is in an inverted D shape on the whole, and the opening of the outer ring piece is communicated with the opening of the outer ring piece. The curled edge is curled upwards, the curled edge comprises an arc-shaped part which is curled from bottom to top and from inside to outside and a straight part which is pulled back to the bottom end of the end edge part from outside to inside, and the tail end of the straight part is pressed at the bottom of the end edge; the bottom material sheet covers the opening of the outer ring sheet and seals the opening; and the edge of the substrate sheet is fixedly connected with the edge of the outer ring sheet. According to the utility model, the problem of aesthetic property of the upward hemming can be solved, and the problem of further increasing the connection strength of the upward hemming can also be solved.

Description

Technical Field

[0001] The utility model relates to the field of paper containers, and particularly relates to a disposable paper container with a special curled edge. Background Art

[0002] Paper containers such as paper plates or paper bowls are convenient to use and can be used for occasions such as serving Western dishes, bread, cakes, pastries, etc. Paper containers have the advantages of light weight, low cost, portability, and safety compared with ceramic containers, and have the advantages of high temperature resistance and no pollution compared with plastic paper containers. Therefore, paper containers are widely used.

[0003] The inventor discloses a paper plate with a curled edge in Chinese patent document CN221383153U, and its curled edge can be curled upward or downward. Although several specific downward curled edge shapes are disclosed in the embodiments, such as a water droplet-shaped curled edge, etc., for the upward curled edge, it is curled from the outside to the inside. And if there is an extension part of the curled edge pressed on the end edge, although the connection strength is increased, the extension part above is likely to affect the aesthetics; if there is no extension part of the curled edge bonded to the end edge, although it is more aesthetically pleasing, the connection strength cannot be further enhanced, which falls into a dilemma. Summary of the Invention

[0004] In view of this, to solve the above technical problems, the purpose of the utility model is to provide a disposable paper container with a special curled edge, which can solve both the aesthetic problem of the upward curled edge and the problem of further increasing the connection strength of the upward curled edge.

[0005] The technical solution adopted is as follows:

[0006] A disposable paper container with a special curled edge, which comprises:

[0007] An outer ring piece, which has an opening at the bottom, and a side part with a slope is formed on the peripheral side. The side part has a slope surface, and an end edge is arranged on the slope surface and extends outward and downward. The end edge is provided with a special curled edge, and the special curled edge is generally in an inverted D shape as a whole. The curled edge is curled upward, and the curled edge includes an arc part that curls from bottom to top and from inside to outside and a straight part that is pulled back from outside to inside to the bottom end of the end edge part. The end of the straight part is pressed on the bottom of the end edge;

[0008] A bottom material piece, which covers the opening of the outer ring piece to close the opening; the edge of the bottom material piece is fixedly connected with the edge of the outer ring piece.

[0009] Further, the edge of the bottom material piece and the edge of the outer ring piece are integrally formed.

[0010] Further, the bottom material piece is an octagonal bottom material piece.

[0011] Furthermore, the edge of the base material sheet and the edge of the outer ring sheet are horizontally laminated and then flattened and connected.

[0012] Furthermore, the edge of the base material sheet and the edge of the outer ring sheet are vertically laminated and then flattened and connected.

[0013] Furthermore, the edge of the base material sheet and the edge of the outer ring sheet are laminated in a Z-shape and connected with grooves.

[0014] Furthermore, the edge of the base material sheet and the edge of the outer ring sheet are laminated in a U-shape and press-fitted.

[0015] Furthermore, the edge of the outer ring sheet has a V-shaped tip; the edge of the base material sheet crosses the V-shaped tip and forms a triangular lap joint with the outer ring sheet.

[0016] Furthermore, a first lap joint portion is provided at the edge of the outer ring sheet, and there is a first indentation between the first lap joint portion and the outer ring sheet; the first lap joint portion is obliquely upward; a second lap joint portion is provided at the edge of the base material sheet, and there is a second indentation between the second lap joint portion and the base material sheet; the second lap joint portion is correspondingly obliquely downward; the second lap joint portion of the base material sheet and the first lap joint portion of the outer ring sheet are obliquely laminated and lap-jointed and fixed.

[0017] The beneficial effects of the present utility model are as follows:

[0018] Since the curled edge includes an arc portion that curls from bottom to top and from inside to outside and a straight portion that is pulled back from outside to inside to the bottom end of the end edge portion, and the end of the straight portion is press-fitted at the bottom of the end edge; thus, on the one hand, the upward arc portion has aesthetic property; on the other hand, the end of the straight portion being press-fitted at the bottom of the end edge can further increase the connection strength, and being located at the bottom does not affect the aesthetics. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 1.

[0021] Figure 2 It is a schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 2.

[0022] Figure 3Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 3.

[0023] Figure 4 Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 4.

[0024] Figure 5 Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 5.

[0025] Figure 6 Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 6.

[0026] Figure 7 Schematic structural diagram of the one-piece unfolded state of the disposable paper container for Embodiment 7.

[0027] Figure 8 Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 7.

[0028] Figure 9 Schematic structural diagram of a disposable paper container with a special curled edge for Embodiment 8.

[0029] In the figure, the serial numbers correspond to the feature names as follows:

[0030] 1 - Outer ring piece; 2 - Bottom material piece; 3 - Curled edge; 11 - Side part; 12 - End edge; 13 - V-shaped tip; 14 - Groove; 15 - First overlapping part; 21 - Second overlapping part; 31 - Arc part; 32 - Straight part. Detailed implementation manners

[0031] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model. Embodiment 1

[0032] See Figure 1 As shown, a disposable paper container with a special curled edge includes an outer ring piece 1 and a bottom material piece 2.

[0033] The outer ring piece 1 has an opening at its bottom, and a sloped side portion 11 is formed on its circumferential side. The side portion has a ramp surface, and an end edge 12 is provided on the ramp surface and extends outward and downward. The end edge is provided with a special curled edge 3. In the longitudinal section state, the special curled edge is generally in an inverted D shape, and the curled edge is curled upward. The curled edge includes an arc portion 31 that curls upward and outward from the bottom and a straight portion 32 that is pulled back from the outside to the bottom end of the end edge portion. The end of the straight portion 32 is pressed against the bottom of the end edge 12.

[0034] The base material piece 2 covers the opening of the outer ring piece 1 to seal the opening; the edge of the base material piece 2 is fixedly connected to the edge of the outer ring piece 1.

[0035] Among them, the pressing can be, for example, ultrasonic pressing or physical pressing such as hot pressing.

[0036] The inventor found that when the curled edge is curled upward, if the curled edge is curled from the outside to the inside, it will fall into a dilemma between aesthetics and further increasing the connection strength, that is, achieving aesthetics cannot achieve further increasing the connection strength; achieving further increasing the connection strength, it cannot appear aesthetic. Therefore, the inventor found a new way and curled the curled edge from the inside to the outside, thus solving the dilemma of the upward curled edge.

[0037] Specifically, since the curled edge 3 includes an arc portion 31 that curls upward and outward from the bottom and a straight portion 32 that is pulled back from the outside to the bottom end of the end edge portion, and the end of the straight portion 32 is pressed against the bottom of the end edge 12; thus, on the one hand, the upward arc portion has aesthetics; on the other hand, the end of the straight portion being pressed against the bottom of the end edge can further increase the connection strength problem, and being located at the bottom does not affect aesthetics; thus solving the dilemma of the upward curled edge.

[0038] In this embodiment, the edge of the base material piece 2 and the edge of the outer ring piece 1 are horizontally laminated and then pressed flat for connection. This can increase the connection strength at the bottom from the horizontal direction. Embodiment 2

[0039] Referring to Embodiment 1, different from Embodiment 1, see Figure 3 As shown, in this embodiment, the edge of the base material piece 2 and the edge of the outer ring piece 1 are vertically laminated and then pressed flat for connection. Specifically, the edge of the outer ring piece can form a slot, and the end of the base material piece is vertically inserted into the slot, so that the connection strength at the bottom can be increased from the vertical direction. Embodiment 3

[0040] Referring to Embodiment 1, different from Embodiment 1, see Figure 4 As shown, in this embodiment, the edge of the base material piece 2 and the edge of the outer ring piece 1 are laminated in a Z shape and have a groove 14 for connection. In this way, the overlapping area at the bottom can be further increased, thereby increasing the connection strength. Example 4

[0041] Referring to Example 1, different from Example 1, as shown in Figure 5 , in this embodiment, the edge of the bottom substrate sheet 2 and the edge of the outer ring sheet 1 are press-connected in a U-shaped laminated manner. In this way, a paper container with a U-shaped bottom can be further manufactured, and the connection strength of the bottom can also be increased. Example 5

[0042] Referring to Example 1, different from Example 1, as shown in Figure 6 , in this embodiment, the edge of the outer ring sheet 2 has a V-shaped tip 13; the edge of the bottom substrate sheet 2 straddles the V-shaped tip 13 and forms a triangular lap joint with the outer ring sheet 1. In this way, a paper container with a V-shaped tip bottom can be further manufactured, and the paper container manufactured in this way has an anti-slip effect. Example 6

[0043] Referring to Example 1, different from Example 1, as shown in Figure 2 , in this embodiment, the edge of the bottom substrate sheet 2 and the edge of the outer ring sheet 1 are integrally formed. That is, the bottom substrate sheet and the outer ring sheet can be made of a single piece of paper. Example 7

[0044] Referring to Example 1, different from Example 1, as shown in Figure 7 and Figure 8 , the bottom substrate sheet in this embodiment is an octagonal bottom substrate sheet. The edge of the octagonal bottom substrate sheet 2 and the edge of the outer ring sheet 1 are integrally formed. That is, the octagonal bottom substrate sheet and the outer ring sheet are made of a single piece of paper. This product can be called an octagonal bowl. Example 8

[0045] Referring to Example 1, different from Example 1, as shown in Figure 9 , a first lap joint portion 15 is provided at the edge of the outer ring sheet 1, and there is a first indentation between the first lap joint portion and the outer ring sheet; the first lap joint portion 15 is arranged obliquely upward; a second lap joint portion 21 is provided at the edge of the bottom substrate sheet 2, and there is a second indentation between the second lap joint portion and the bottom substrate sheet; the second lap joint portion 21 is correspondingly arranged obliquely downward; the second lap joint portion 21 of the bottom substrate sheet is obliquely laminated and lap-jointed with the first lap joint portion 15 of the outer ring sheet. Thus, on the one hand, it has double-layer connection strength; on the other hand, a hollow structure can be formed below the bottom substrate sheet, and the bottom cross-section of this disposable paper container forms a V-shaped tip structure, and the paper tray manufactured in this way has an anti-slip effect; on the third hand, the internal cross-section of the disposable paper container also correspondingly forms a V-shaped tip structure, which is convenient for the bottom of other disposable paper containers to be inserted and stacked, and the stacking effect is good.

[0046] In summary, the disposable paper container has a special inverted D-shaped curled edge (abbreviated as D-shaped curled edge), which can be applied to various bottom fixed connection methods including the above-mentioned Embodiments 1-8.

[0047] The disposable paper container with a D-shaped curled edge also has two major advantages:

[0048] The equipment is easy to design and manufacture.

[0049] The space occupied during product stacking is reduced, which means that more disposable paper containers, such as paper plates or paper bowls, can be stacked in the same space.

[0050] It should be noted that in the description of the present invention, the orientation or positional relationship indicated by terms such as "from bottom to top", "from inside to outside", "downward", etc. is based on the Figure 1 orientation or positional relationship usually shown, and is only for the convenience of describing the present invention and easy understanding, rather than indicating or implying that the referred components must have a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0051] The series of detailed descriptions listed above are only specific descriptions of the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included within the protection scope of the present invention.

Claims

1. A disposable paper container with a special curling edge, characterized in that: include: The outer ring sheet has an opening at the bottom, and a side portion with an inclination is formed on the circumferential side. The side portion has a slope surface, and an end edge is provided on the upper edge of the slope surface extending outward and downward. The end edge is provided with a special curling edge, and the special curling edge is in an inverted D shape as a whole. The curling edge is rolled up, and the curling edge includes an arc portion rolled up from bottom to top and from inside to outside, and a straight portion pulled back from outside to inside to the bottom end of the end edge portion, and the end of the straight portion is pressed on the bottom of the end edge; A base sheet covers the opening of the outer ring sheet to close the opening; an edge of the base sheet is fixedly connected to an edge of the outer ring sheet.

2. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the base material sheet and the edge of the outer ring sheet are integrally formed.

3. The disposable paper container with special curling edge according to claim 2, characterized in that: The substrate sheet is an octagonal substrate sheet.

4. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the base material sheet and the edge of the outer ring sheet are connected by being flattened after being stacked transversely.

5. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the base material sheet and the edge of the outer ring sheet are connected by being flattened after being vertically stacked.

6. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the base sheet and the edge of the outer ring sheet are stacked in a Z shape and connected with a groove.

7. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the base material sheet and the edge of the outer ring sheet are U-shaped laminated and pressed together.

8. The disposable paper container with special curling edge according to claim 1, characterized in that: The edge of the outer ring piece has a V-shaped tip; the edge of the base material piece spans the V-shaped tip to form a triangular overlap with the outer ring piece.

9. The disposable paper container with special curling edge according to claim 1, characterized in that: A first overlapping portion is provided at the edge of the outer ring sheet, and a first indentation is formed between the first overlapping portion and the outer ring sheet; the first overlapping portion is arranged obliquely upward; a second overlapping portion is provided at the edge of the base material sheet, and a second indentation is formed between the second overlapping portion and the base material sheet; the second overlapping portion is correspondingly arranged obliquely downward; the second overlapping portion of the base material sheet and the first overlapping portion of the outer ring sheet are obliquely overlapped and fixed.

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