Cover structure for packaging body and packaging body thereof

Abstract

The utility model provides a cover structure for a packaging body and the packaging body, the packaging body is used for containing contents and is provided with an extraction opening, and the cover structure for the packaging body is installed at the extraction opening; comprising a seat body mounted at the extraction opening; the number of the first limiting pieces is two; a second limiting sheet; the opening area is defined by the inner wall of the through hole and the edges of the two first limiting pieces; the guide gap is formed between the two first limiting pieces, and the guide gap is communicated with the opening area; the limiting gap is defined by the edges of the two first limiting pieces and the edges of the two second limiting pieces; when the content is extracted out, the limiting gap can clamp the next content, and part of the next content is exposed out of the limiting gap. Contents are extracted smoothly, and the problem of inconvenience in use is effectively solved.

Description

Technical Field

[0001] The present application relates to the field of packaging technology, and in particular to a cover structure for a packaging body and a packaging body thereof. Background Art

[0002] Existing wet wipes, cotton wipes, paper towels and other contents are divided into continuous draw and single draw in terms of extraction methods. Single draw means that when you draw one sheet, the next sheet will not be automatically brought up. Continuous draw means that when you draw one sheet, the next sheet will be automatically brought up. For single-draw products, you need to reach into the package to pick it up each time you draw it, which is very troublesome. For continuous draw products, you need to put some of the contents that are taken out back, which is also troublesome and unhygienic to use.

[0003] Furthermore, both extraction methods are inconvenient to use, so it is very important to have a third option. Utility Model Content

[0004] Based on this, it is necessary to provide a packaging cover structure and a packaging body thereof that can solve the problem of inconvenience in use.

[0005] A packaging cover structure, wherein the packaging body is used to contain contents and has an extraction port, and the packaging cover structure is installed at the extraction port; the packaging cover structure comprises:

[0006] A seat body is installed at the extraction port, and a through hole is opened on the seat body, and the through hole is used to correspond to the extraction port;

[0007] The first limiting pieces are provided in two numbers, the two first limiting pieces are provided on opposite sides of the hole wall of the through hole, and separate the through hole into an opening area and a limiting area, and a guiding gap is formed between the two first limiting pieces;

[0008] A second limiting piece, wherein the second limiting piece is arranged on the wall of the through hole at the limiting area and forms a limiting gap with the two first limiting pieces, and the limiting gap is connected with the guiding gap;

[0009] When the content is extracted, the limiting gap can clamp the next content, and part of the next content is exposed outside the limiting gap.

[0010] In one of the embodiments, the end of the guide gap communicating with the opening area is flared.

[0011] In one embodiment, the diameter of the expanded guide gap gradually decreases in a direction from the opening area to the guide gap.

[0012] In one embodiment, the width of the guide gap is 0.05cm-3cm; and / or the width of the limit gap is 0.05cm-3cm.

[0013] In one embodiment, the first limiting piece has a first guide surface that contacts the contents when the contents are extracted, and the second limiting piece has a second guide surface that contacts the contents when the contents are extracted; wherein the first guide surface and the second guide surface are both configured as smooth structures.

[0014] In one embodiment, a chamfered structure is provided at the edge of the first limiting piece and on the side facing the contents, so that the first guide surface is formed at the edge of the first limiting piece; a chamfered structure is provided at the edge of the second limiting piece and on the side facing the contents, so that the second guide surface is formed at the edge of the second limiting piece.

[0015] In one embodiment, a first guide portion is provided at the edge of the first limiting piece, and the side surface of the first guide portion corresponding to one side of the guide gap and the first guide surface are arranged to form a continuous arc surface; and / or, a second guide portion is provided at the edge of the second limiting piece, and the side surface of the second guide portion corresponding to one side of the limiting gap and the second guide surface are arranged to form a continuous arc surface.

[0016] The present application also provides a packaging body, including a bag body and a packaging body cover structure as described in any of the above embodiments, wherein the bag body is provided with the extraction port, and the packaging body cover structure is located at the extraction port and installed on the bag body.

[0017] In one embodiment, the packaging body further includes a sealing member, which is detachably disposed at the extraction port to open or close the extraction port.

[0018] In one of the embodiments, a dot-break structure is provided on the sealing member, and the dot-break structure is provided on a side of the sealing member close to the second limiting piece.

[0019] Compared with the prior art, the packaging cover structure is provided with the first limiting piece and the second limiting piece, so that when a piece of content is extracted from the extraction port, the next piece of content will be automatically brought up, but will not be taken out as a whole. The limiting gap clamps the part of the next piece of content that is brought up, and makes this part exposed outside the limiting gap. When extracting the next piece of content, just hold the exposed part and extract it. The extraction process is realized without interruption, and there is no need to stuff back the excess content, nor to reach into the packaging body to buckle it. Each extraction is very smooth, which improves the convenience of extraction and solves the problem of inconvenience in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a schematic diagram of the structure of the packaging body provided in this application.

[0022] Figure 2 This is a schematic structural diagram of the packaging cover structure provided in this application.

[0023] Figure 3 This is a bottom view of the cover structure for the packaging body provided in this application.

[0024] Figure 4 This is a top view of the packaging cover structure provided in the present application.

[0025] Figure 5 for Figure 4 Sectional view along line AA.

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 for Figure 4 Cross-sectional view along line CC.

[0028] Figure 8 for Figure 7 Enlarged view of point B in the middle.

[0029] Fig. 9 A schematic diagram of the structure of the contents provided in this application.

[0030] Fig.10 This is a schematic diagram of the structure of the seal provided in this application.

[0031] Figure numerals: 10, seat body; 101, through hole; 20, first limiting plate; 201, first guide surface; 202, first guide part; 30, second limiting plate; 301, second guide surface; 302, second guide part; 40, opening area; 50, guide gap; 60, limiting gap; 70, flip cover; 80, limiting area; 100, bag body; 200, extraction port; 300, content; 310, dotted line; 400, sealing member; 410, dotted structure. DETAILED DESCRIPTION

[0032] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0033] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0035] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0037] The present application provides a package cover structure, wherein the package is used to contain content 300, and an extraction port 200 is provided on the package, and the content 300 can be extracted from the extraction port 200. The package cover structure of the present application is installed at the extraction port 200.

[0038] See also Figures 1 to 10 The packaging cover structure includes a base 10, a first limiting piece 20, a second limiting piece 30, an opening area 40, a limiting area 80, a guide gap 50, and a limiting gap 60. The base 10 is installed at the extraction port 200, and a through hole 101 is provided on the base 10, and the through hole 101 is used to correspond to the extraction port 200. That is, when the base 10 is installed at the extraction port 200, the position of the through hole 101 corresponds to the position of the extraction port 200. Two first limiting pieces 20 are provided, and the two first limiting pieces 20 are provided on opposite sides of the hole wall of the through hole 101. The first limiting piece 20 divides the through hole 101 into an opening area 40 and a limiting area 80, that is, the edges of the two first limiting pieces 20 and the inner wall of the through hole 101 on one side are surrounded to form the opening area 40, and the edges of the two first limiting pieces 20 and the inner wall of the through hole 101 on the other side are surrounded to form the limiting area 80. The guide gap 50 is formed between the two first limiting pieces 20 , and the guide gap 50 is communicated with the opening area 40 .

[0039] The second limiting piece 30 is provided as one, and the second limiting piece 30 is provided on the hole wall of the through hole 101 at the limiting area 80. The limiting gap 60 is formed by the edges of the two first limiting pieces 20 and the edge of the second limiting piece 30, and the limiting gap 60 is connected with the guide gap 50. When the content 300 is extracted, the limiting gap 60 clamps part of the next content 300, and part of the next content 300 is exposed outside the limiting gap 60.

[0040] It should be explained that, through the arrangement of the first limiting piece 20 and the second limiting piece 30, when a piece of content 300 is extracted from the extraction port 200, the next piece of content 300 will be automatically brought up, but will not be brought out as a whole. The limiting gap 60 clamps the part of the next piece of content 300 that is brought up, and makes this part exposed outside the limiting gap 60. When extracting the next piece of content 300, just hold the exposed part and extract it. The extraction process is realized without interruption, and there is no need to stuff back the extra content 300, nor to reach into the package body to buckle it. Each extraction is very smooth, which improves the convenience of extraction and solves the problem of inconvenient use.

[0041] It should be explained that the “when the contents 300 are extracted” mentioned here refers to the user extracting the contents 300 through the opening area, or extracting the contents 300 through the contents exposed to the limiting gap.

[0042] See also Fig. 9 The contents 300 are arranged in a plurality of sheets, and the contents 300 are wet wipes made of wood pulp. Two adjacent contents 300 are connected by dotted lines, and the connected contents 300 are stacked on each other, so that the plurality of contents 300 are contained in the package.

[0043] The dotted lines make the contents 300 slightly connected, and the limit gap 60 clamps the contents 300, so that each time the contents 300 are extracted, the next one is automatically brought up, and an area of ​​about 0.1 cm is exposed on the limit gap 60. 2 -4cm 2 The small triangle-like shape can achieve the situation of continuous opening and closing, which is convenient to use. At the same time, the exposed area is small, which can not only meet the requirements of extracting the content 300 through the exposed area, but also prevent the content 300 from being contaminated or losing moisture due to excessive exposure. Here, an exposed area of ​​about 0.1cm 2 , 0.5cm 2 , 1cm 2 , 2cm 2 , 3cm 2 、4cm 2 Equal value.

[0044] When in use, a finger is inserted into the opening area 40 to hold the first content 300, and the content 300 is pulled outward, and the tail end of the first content 300 enters the limiting gap 60 along the guide gap 50, and is continuously pulled outward to leave the limiting gap 60; the second content 300 that is lifted up partially extends out of the limiting gap 60 and is clamped in the limiting gap 60. When the second content 300 and subsequent contents 300 are pulled out, it is only necessary to pinch the part of the content 300 clamped in the limiting gap 60 and pull it outward, and the content 300 is completely pulled out from the limiting gap.

[0045] Of course, if the limiting gap fails to clamp the next content during the extraction process, the next content 300 can be extracted by inserting fingers into the opening area 40 and then repeating the above extraction steps.

[0046] In one embodiment, the dotted line can be set at any position on the side close to the second limiting piece 30. It is preferably set at the end of the content 300 to ensure that the limiting gap 60 will not be unclamped and the exposed area is minimized.

[0047] In one embodiment, the dotted line is obtained by cutting with a tool and is composed of a plurality of dotted connection points. In one embodiment, the dotted connection points are set to 3-6, and the specific value can be any one of 3, 4, 5, and 6, which can meet the dotted needs in actual use. The point diameter of the dotted connection point is set to 1.0mm-1.3mm, and the specific value can be 1mm, 1.1mm, 1.2mm, 1.3mm, etc. Of course, the corresponding value can also be selected according to the actual situation to meet the dotted needs in actual use, which will not be described in detail here. The point spacing of the dotted connection points is set to 6mm.

[0048] See also Figure 2-Figure 4 The base 10 is composed of 5 circles with a diameter of 2 cm-7 cm, so that the shape of the base 10 is a cloud-like pattern. The length of the base 10 is 6 cm-12 cm, and the width of the base 10 is 3.5 cm-7 cm.

[0049] Among them, the value of the circular diameter can be 2cm, 3cm, 4cm, 5cm, 6cm, 7cm, etc., and of course, the corresponding value can be selected according to the actual situation, which will not be described in detail here. The value of the length of the seat body 10 can be 6cm, 7cm, 8cm, 9cm, 10cm, 11cm, 12cm, etc., and of course, the corresponding value can be selected according to the actual situation, which will not be described in detail here. The value of the width of the seat body 10 can be 3.5cm, 4cm, 5cm, 6cm, 7cm, etc., and of course, the corresponding value can be selected according to the actual situation, which will not be described in detail here. In other embodiments, the number of circles can also be set to other numbers except 5, and the corresponding value can be selected according to the actual situation, which will not be described in detail here.

[0050] In one embodiment, the base 10 is fixedly connected to the extraction port 200 on the package body by bonding, and after installation, the position of the through hole 101 corresponds to the position of the extraction port 200, so that the content 300 in the package body can be extracted from the extraction port 200 and the through hole 101. Of course, in other embodiments, the base 10 can also be fixedly connected to the package body by other means such as snap connection.

[0051] In one embodiment, the through hole 101 is opened at the center of the seat body 10 and can be set as an elliptical or long strip opening, so that the through hole 101 has a length direction and a width direction. Two first limiting pieces 20 are connected to the inner wall of the through hole 101 in the width direction, and the two first limiting pieces 20 are symmetrically arranged.

[0052] Preferably, the first limiting piece 20 is set to a fan-shaped structure, and its radius is set to 0.5cm-2.5cm. The specific value can be 0.5cm, 1cm, 1.5cm, 2cm, 2.5cm, etc. Of course, the corresponding value can also be selected according to the actual situation, which is not described in detail here.

[0053] In one embodiment, the first limiting piece 20 is disposed at a position of 1 / 2-1 / 5 of the through hole 101 , and the specific value may be 1 / 2, 1 / 3, 1 / 4, 1 / 5, etc. Of course, the corresponding value may also be selected according to the actual situation.

[0054] In one embodiment, the second limiting plate 30 is connected to the inner wall of the through hole 101 in the length direction, and its maximum width is set to 0.5cm-2.5cm. The specific value can be 0.5cm, 1cm, 1.5cm, 2cm, 2.5cm, etc. Of course, the corresponding value can also be selected according to the actual situation, which is not described in detail here.

[0055] Preferably, the second limiting piece 30, the first limiting piece 20, and the seat body 10 are made of the same material and are integrally formed. Specifically, they are formed by integral plastic injection molding. Of course, it is not limited thereto, and the materials of the three can also be set to be different, and they can be fixed on the seat body 10 by bonding or clamping.

[0056] In one embodiment, the first limiting piece 20 has a first guide surface 201 that contacts the content 300 when the content 300 is extracted, and the second limiting piece 30 has a second guide surface 301 that contacts the content 300 when the content 300 is extracted. The first guide surface 201 is the bottom surface of the first limiting piece 20 away from the through hole 101, and the second guide surface 301 is the bottom surface of the second limiting piece 30 away from the through hole 101.

[0057] See also Figure 5-Figure 8 A chamfered structure is provided at the edge of the first limiting piece 20 and on the side facing the content 300 so that a first guide surface 201 is formed at the edge of the first limiting piece 20; a chamfered structure is provided at the edge of the second limiting piece 30 and on the side facing the content 300 so that a second guide surface 301 is formed at the edge of the second limiting piece 30.

[0058] Preferably, the first guide surface 201 and the second guide surface 301 are both set to a smooth structure, which effectively reduces the friction between the limiting piece and the content 300 and improves the smoothness of extraction. Specifically, it is obtained by mechanical or chemical polishing, which is simple to operate and has a good smooth effect.

[0059] In order to achieve a better extraction effect, a first guide portion 202 is provided at the edge of the first limiting piece 20, and the side surface of the first guiding portion 202 corresponding to the guide gap 50 is set to form a continuous arc surface with the first guiding surface 201. The first guiding portion 202 can be formed by directly curling upward at the edge of the first limiting piece 20, or it can be obtained by integral injection molding with the first limiting piece 20. In this embodiment, the first guiding portion 202 is a curling edge.

[0060] Preferably, the connection between the first guide portion 202 and the first limiting piece 20 is also chamfered, so that the first guide portion 202 and the first guide surface 201 form a continuous arc surface. The chamfer angle is set to 0°-90°, and the specific value can be 10°, 30°, 60°, 90°, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0061] In one embodiment, a second guide portion 302 is provided at the edge of the second limiting piece 30, and the side surface of the second guide portion 302 corresponding to the limiting gap 60 is set to form a continuous arc surface with the second guide surface 301. The second guide portion 302 can be formed by directly curling upward at the edge of the second limiting piece 30, or it can be integrally injection molded with the second limiting piece 30. In this embodiment, the second guide portion 302 is a curling edge.

[0062] Preferably, the connection between the second guide portion 302 and the second limiting piece 30 is also chamfered, so that the second guide portion 302 and the second guide surface 301 form a continuous arc surface. The chamfer angle is set to 0°-90°, and the specific value can be 10°, 30°, 60°, 90°, etc. Of course, the corresponding value can also be selected according to the actual situation, which will not be described in detail here.

[0063] In one embodiment, the end of the guide gap 50 connected to the opening area 40 is flared. The flaring can also guide the content to ensure smooth extraction. The diameter of the flared guide gap 50 gradually decreases in the direction from the opening area 40 to the guide gap 50. The minimum width of the guide gap 50 is set to 0.05 cm, and the maximum width is set to 3 cm. While guiding smoothly, it can also cooperate with the limiting gap 60 to stably clamp the content 300.

[0064] In one embodiment, the width of the limiting gap 60 is set to 0.05cm-3cm, and the specific value can be 0.5cm, 1cm, 1.5cm, 2cm, 2.5cm, 3cm, etc. Of course, the corresponding value can also be selected according to the actual situation. As long as the contents 300 can be stably clamped during use, it will not be described in detail here.

[0065] In one embodiment, the base 10 is further connected to a flip cover 70, which has the same shape as the base 10 and is equal to or slightly larger than the base 10, so that the flip cover 70 can completely cover the base 10. The flip cover 70 is connected to the base 10 through a thin plastic sheet, and the plastic sheet can be deformed so that the flip cover 70 is connected to the base 10 and can be flipped relative to the base 10. The flip cover 70 is buckled with the base 10 by means of a buckle.

[0066] See also Figure 1-Figure 10The present application also provides a packaging body, including a bag body 100 and a packaging body cover structure of any of the above embodiments, wherein the extraction port 200 is opened on the bag body 100, and the packaging body cover structure is installed on the bag body 100.

[0067] In one embodiment, see Fig.10 The packaging body further includes a sealing member 400, which is made of PET synthetic paper, and can also be made of plastic or other paper materials. The size of the sealing member 400 is 122mm-60mm*76mm-30mm. The sealing member 400 is detachably arranged on the bag body 100, and is arranged at a position corresponding to the extraction port 200, so as to open or close the extraction port 200. The detachable method here can be bonding.

[0068] Specifically, the seal 400 is provided with a dot breaking structure 410, which is composed of a plurality of dot breaking points, which are obtained by tool dot breaking. The number of dot breaking points is set to 5-20, and the specific values ​​can be 5, 10, 15, 20, etc. Of course, corresponding values ​​can be selected according to actual conditions, which will not be described in detail. The dot spacing of the dot breaking points is 0.1mm-5mm, and the dot diameter is 0.1mm-1mm. The corresponding values ​​can be selected according to actual conditions, which will not be described in detail.

[0069] In one embodiment, the dotted structure 410 is disposed on the side of the seal 400 close to the second limiting piece 30, and the dotted structure 410 is disposed at approximately 1 / 4 of the length direction of the seal 400, 3 / 4 of the seal 400 can be torn off through the dotted structure 410, and 1 / 4 of the seal 400 will be left, and the remaining part of the seal 400 is located on the side where the second limiting piece 30 is located, which can improve the strength of the bag body 100 at this location and further improve the smoothness of extraction. Of course, the position of the dotted structure 410 is not limited to 1 / 4 of the length direction of the seal 400, and it can also be at 1 / 5 and other positions, which can be selected according to actual conditions.

[0070] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described 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.

[0071] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A packaging cover structure, wherein the packaging body is used to contain contents (300) and is provided with an extraction port (200), and the packaging cover structure is installed at the extraction port (200); characterized in that: The packaging cover structure comprises: A seat body (10) is installed at the extraction port (200), and a through hole (101) is provided on the seat body (10), and the through hole (101) is used to correspond to the extraction port (200); The first limiting pieces (20) are provided in two numbers, the two first limiting pieces (20) being arranged on opposite sides of the hole wall of the through hole (101) and dividing the through hole (101) into an opening area (40) and a limiting area (80), and a guiding gap (50) is formed between the two first limiting pieces (20); A second limiting piece (30), the second limiting piece (30) being arranged on the hole wall of the through hole (101) at the limiting area (80), and forming a limiting gap (60) between the second limiting piece (30) and the two first limiting pieces (20), wherein the limiting gap (60) is connected to the guide gap (50); When the content (300) is extracted, the limiting gap (60) can clamp the next content (300), and part of the next content (300) is exposed outside the limiting gap (60).

2. The packaging cover structure according to claim 1, wherein: One end of the guide gap (50) communicating with the opening area (40) is in a flared shape.

3. The packaging cover structure according to claim 2, wherein: The diameter of the expanded guide gap (50) gradually decreases in a direction from the opening area (40) to the guide gap (50).

4. The packaging cover structure according to claim 1, wherein: The width of the guide gap (50) is 0.05 cm-3 cm; and / or the width of the limiting gap (60) is 0.05 cm-3 cm.

5. The packaging cover structure according to claim 1, wherein: The first limiting piece (20) has a first guiding surface (201) which contacts the contents (300) when the contents (300) are extracted, and the second limiting piece (30) has a second guiding surface (301) which contacts the contents (300) when the contents (300) are extracted; wherein the first guiding surface (201) and the second guiding surface (301) are both configured as smooth structures.

6. The packaging cover structure according to claim 5, characterized in that: A chamfered structure is provided at the edge of the first limiting piece (20) and on the side facing the content (300), so that the first guide surface (201) is formed at the edge of the first limiting piece (20); and a chamfered structure is provided at the edge of the second limiting piece (30) and on the side facing the content (300), so that the second guide surface (301) is formed at the edge of the second limiting piece (30).

7. The packaging cover structure according to claim 6, wherein: A first guiding portion (202) is provided at the edge of the first limiting piece (20), and the side surface of the first guiding portion (202) corresponding to the guide gap (50) is arranged to form a continuous arc surface with the first guiding surface (201); and / or a second guiding portion (302) is provided at the edge of the second limiting piece (30), and the side surface of the second guiding portion (302) corresponding to the limit gap (60) is arranged to form a continuous arc surface with the second guiding surface (301).

8. A packaging body, characterized in that: It comprises a bag body (100) and a cover structure for a packaging body according to any one of claims 1 to 7, wherein the bag body (100) is provided with the extraction port (200), and the cover structure for a packaging body is located at the extraction port (200) and is installed on the bag body (100).

9. The packaging body according to claim 8, characterized in that: The packaging body further comprises a sealing member (400), wherein the sealing member (400) is detachably arranged at the extraction port (200) and is used for opening or closing the extraction port (200).

10. The packaging body according to claim 9, characterized in that: The sealing member (400) is provided with a dotted structure (410), and the dotted structure (410) is arranged on a side of the sealing member (400) close to the second limiting piece (30).

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