Packaging cover easy to open and packaging container

Abstract

The utility model discloses an easy-to-open packaging cover and a packaging container. The easy-to-open packaging cover comprises an inner cover (1) and an outer cover (2). The inner cover (1) is used for covering a bottle opening and sealing the bottle opening; the outer cover (2) comprises a first cylindrical part (21), a threaded connection part (22) and a first limiting part (24); the first cylindrical part (21) is arranged outside the inner cover (1) in a sleeving manner; the threaded connection part (22) is arranged in the first cylindrical part (21) and is used for connecting threads at a bottle opening; the first limiting part (24) is arranged on the inner circumferential surface of the first cylindrical part (21); the first limiting part (24) is located on the side, close to the threaded connection part (22), of the inner cover (1) and protrudes out of the inner cover (1) in the radial direction of the first cylindrical part (21) so that the inner cover (1) can be jacked open in the process that the outer cover (2) is unscrewed from the bottle opening.

Description

Technical Field

[0001] The utility model relates to the field of food packaging, in particular to an easy-to-open packaging cover and a packaging container. Background Art

[0002] At present, among sauce products, wide-mouth bottled sauces are widely welcomed by consumers, conform to consumers' usage habits, and have a broad spectrum. In addition, according to the requirements of product sealing and barrier, most sauce packaging adopts wide-mouth glass bottles + iron caps. Combined with the characteristics of the product sterilization process, the bottle is in a negative pressure state, so the problem of difficult unscrewing of the bottle cap often occurs. Utility Model Content

[0003] The utility model aims to provide an easy-to-open packaging cap and a packaging container, so as to improve the problem in the prior art that the bottle cap is difficult to unscrew due to negative pressure in the bottle.

[0004] According to one aspect of the embodiments of the present invention, the present invention provides an easy-to-open packaging cover, the easy-to-open packaging cover comprising:

[0005] inner cover; and

[0006] The outer cover includes a first cylindrical portion sleeved outside the inner cover, a threaded connection portion arranged inside the first cylindrical portion for connecting to the thread at the bottle mouth, and a first limiting portion arranged on the inner circumferential surface of the first cylindrical portion. The first limiting portion is located on a side of the inner cover close to the threaded connection portion and protrudes from the inner cover along the radial direction of the first cylindrical portion so as to push open the inner cover when the outer cover is unscrewed from the bottle mouth.

[0007] In some embodiments, the outer cover also includes a second limiting portion arranged on the inner circumferential surface of the first cylindrical portion. The second limiting portion is arranged on a side of the inner cover away from the threaded connection portion and protrudes from the inner cover radially along the first cylindrical portion to limit the inner cover from detaching from the outer cover.

[0008] In some embodiments, the first limiting portion includes a first curled edge formed at a first end of the first cylindrical portion along an axial direction of the first cylindrical portion.

[0009] In some embodiments, the threaded connection portion includes a protrusion formed on the first bead, and the protrusion protrudes toward the middle of the first cylindrical portion along the radial direction of the first cylindrical portion relative to the first bead.

[0010] In some embodiments, the second limiting portion includes a second curled edge formed at a second axial end of the first cylindrical portion.

[0011] In some embodiments,

[0012] The inner cover is made of metal; and / or

[0013] The material of the outer cover is metal.

[0014] In some embodiments, the first limiting portion includes a first protrusion formed on the inner circumferential surface of the first cylindrical portion.

[0015] In some embodiments, the second limiting portion includes a second protrusion formed on the inner circumferential surface of the first cylindrical portion.

[0016] In some embodiments, the threaded connection portion includes a thread provided on the inner circumferential surface of the first cylindrical portion, and the thread is located on a side of the first limiting portion away from the inner cover.

[0017] In some embodiments,

[0018] The inner cover is made of metal; the outer cover is made of plastic; or

[0019] The inner cover is made of plastic; the outer cover is made of metal.

[0020] In some embodiments, the inner cover includes a cover body for covering the bottle mouth, a second cylindrical portion connected to the inner side of the cover body and sleeved in the outer cover, and a third curled edge arranged at an end of the second cylindrical portion away from the cover body, and the projections of the third curled edge and the first limiting portion in a plane perpendicular to the first cylindrical portion at least partially overlap.

[0021] According to another aspect of the utility model, a packaging container is further provided, and the packaging container comprises the easy-to-open packaging cover mentioned above.

[0022] In some embodiments,

[0023] The inner cover is also wrapped with a sealant layer; and / or

[0024] A sealing rubber pad is also arranged on the inner side of the cover body of the inner cover.

[0025] By applying the technical solution of the present application, the inner cover is used to achieve sealing of the bottle mouth, and the inner cover and the outer cover are separately arranged. The negative pressure in the bottle only drives the inner cover to press against the bottle mouth but has no effect on the outer cover. Therefore, the process of unscrewing the outer cover is not affected by the negative pressure in the bottle, and the rotational force required to unscrew the outer cover is relatively small, so that consumers can easily unscrew the outer cover. Furthermore, the threaded connection part of the outer cover cooperates with the thread at the bottle mouth to form a spiral drive mechanism, and the spiral drive mechanism is used to push open the inner cover that seals the bottle mouth through the first limiting part, which is beneficial to reducing the rotational force required for consumers to unscrew the easy-open packaging cover, thereby improving the problem of large rotational force required for consumers to unscrew the bottle cap in the prior art.

[0026] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0028] Figure 1 A schematic diagram showing the cross-sectional structure of the easy-open packaging cover of some embodiments of the utility model is shown;

[0029] Figure 2 A schematic cross-sectional structure diagram of an inner cover of an easy-open packaging cover of some embodiments of the utility model is shown;

[0030] Figure 3 A schematic cross-sectional structure diagram of an outer cover of an easy-open packaging cover of some embodiments of the utility model is shown;

[0031] Figure 4 A bottom view structural schematic diagram of an outer cover of an easy-open packaging cover of some embodiments of the utility model is shown;

[0032] Figure 5 Schematic diagrams showing the cross-sectional structures of easy-open packaging covers of other embodiments of the utility model;

[0033] Figure 6 Schematic diagrams showing the cross-sectional structure of the outer cover of the easy-open packaging cover of other embodiments of the utility model;

[0034] Figure 7 A schematic diagram showing the structure of the outer cover of the easy-open packaging cover of other embodiments of the utility model;

[0035] Figure 8 Schematic diagrams of the cross-sectional structure of the inner cover of the easy-open packaging cover of other embodiments of the utility model are shown.

[0036] In the figure:

[0037] 1. Inner cover; 11. Cover body; 12. Third curling edge; 2. Outer cover; 21. First cylindrical portion; 22. Threaded connection portion; 23. Second limiting portion; 24. First limiting portion. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0040] See also Figures 1 to 4 In some embodiments of the present application, the easy-open packaging cover comprises an inner cover 1 and an outer cover 2. The inner cover 1 is used to cover and seal the bottle mouth. The outer cover 2 comprises a first cylindrical portion 21 sleeved outside the inner cover 1, a threaded connection portion 22 provided inside the first cylindrical portion 21 and used to connect to the thread at the bottle mouth, and a first limiting portion 24 provided on the inner circumferential surface of the first cylindrical portion 21. The first limiting portion 24 is located on one side of the inner cover 1 close to the threaded connection portion 22 and protrudes from the inner cover 1 along the radial direction of the first cylindrical portion 21, so as to push open the inner cover 1 when the outer cover 2 is unscrewed from the bottle mouth.

[0041] In this embodiment, the inner cover 1 is used to seal the bottle mouth. The inner cover 1 and the outer cover 2 are separately arranged. The negative pressure in the bottle only drives the inner cover 1 to press against the bottle mouth but has no effect on the outer cover 2. Therefore, the process of unscrewing the outer cover 2 is not affected by the negative pressure in the bottle. The rotational force required to unscrew the outer cover 2 is relatively small, and the consumer can easily unscrew the outer cover 2. Furthermore, the threaded connection part 22 of the outer cover 2 cooperates with the thread at the bottle mouth and forms a spiral drive mechanism (similar to using the spiral rise of the screw sleeve rotating along the screw rod to lift other components, which saves effort, such as the common car jack). The spiral drive mechanism is used to push open the inner cover 1 that seals the bottle mouth through the first limiting part 24, which is beneficial to reducing the rotational force required for consumers to unscrew the easy-open packaging cover, thereby improving the problem of large rotational force required for consumers to unscrew the easy-open packaging cover in the prior art.

[0042] Of course, the easy-open packaging cap of this embodiment is not limited to the working condition of negative pressure in the bottle. The easy-open packaging cap can also reduce the rotational force when unscrewing the easy-open packaging cap when there is no negative pressure in the bottle, so as to improve the user experience.

[0043] In some embodiments, the outer cover 2 also includes a second limiting portion 23 provided on the inner circumferential surface of the first cylindrical portion 21. The second limiting portion 23 is provided on the side of the inner cover 1 away from the threaded connection portion 22 and protrudes from the inner cover 1 along the radial direction of the first cylindrical portion 21 to limit the inner cover 1 from being separated from the outer cover 2.

[0044] The first limiting portion 24 and the second limiting portion 23 are respectively located on both sides of the inner cover 1 to respectively limit the inner cover 1 from moving toward the two ends of the outer cover 2. Therefore, when the easy-open packaging cover is unscrewed from the bottle, the inner cover 1 and the outer cover 2 cannot be separated. In the process of unscrewing the easy-open packaging cover from the bottle mouth, the outer cover 2 can be rotated in a first direction to push the inner cover open through the first limiting portion 24 using the spiral drive mechanism. In the process of covering the easy-open packaging cover on the bottle again, the outer cover 2 can be rotated in a second direction opposite to the first direction to squeeze the inner cover 1 toward the bottle mouth through the second limiting portion 23 using the spiral drive mechanism, thereby achieving re-sealing of the bottle mouth.

[0045] In some embodiments, the first limiting portion 24 includes a first curled edge formed at a first end of the first cylindrical portion 21 along the axial direction of the first cylindrical portion 21 .

[0046] In some embodiments, the threaded connection portion 22 includes a protrusion formed on the first curled edge, and the protrusion protrudes toward the middle of the first cylindrical portion 21 along the radial direction of the first cylindrical portion 21 relative to the first curled edge.

[0047] The second limiting portion 23 includes a second curled edge formed at a second end of the first cylindrical portion 21 in the axial direction of the first cylindrical portion 21 .

[0048] In some embodiments, the inner cover 1 is made of metal, and the outer cover 2 is made of metal. The metal inner cover 1 has higher density, which is conducive to isolating the items in the bottle from the outside atmosphere, thereby ensuring that the items in the bottle do not deteriorate.

[0049] See also Figure 1 and Figure 2 The inner cover 1 includes a cover body 11 for covering the bottle mouth, a second cylindrical portion connected to the inner side of the cover body 11 and sleeved in the outer cover 2, and a third curled edge 12 arranged at one end of the second cylindrical portion away from the cover body 11, and the projections of the third curled edge 12 and the first limiting portion 24 in a plane perpendicular to the first cylindrical portion 21 at least partially overlap.

[0050] In some embodiments of the present application, the cover body 11 of the inner cover 1 is covered on the bottle mouth, and the third curling edge 12 is clamped around the bottle mouth to fix the inner cover on the bottle mouth. In some embodiments, the inner cover 1 is also wrapped with a sealant layer to further seal the bottle mouth and prevent the contents of the bottle from contacting with the outside atmosphere and deteriorating.

[0051] In some embodiments, a sealing rubber pad is further provided on the inner side of the cover body 11 of the inner cover 1, and the sealing rubber pad is attached to the inner side of the cover body 11, and the side of the sealing rubber pad facing away from the cover body 11 abuts against the outer edge of the bottle mouth, so as to further improve the sealing performance of the bottle mouth. Furthermore, when the easy-open package cover is opened and covered on the bottle mouth again, the inner cover 1 and the sealing rubber pad are squeezed toward the bottle mouth through the second limiting part 23 by the spiral driving mechanism, so as to achieve the re-sealing of the bottle mouth.

[0052] In some embodiments, both ends of the outer cover 2 along the axial direction of the first cylindrical portion 21 are open ends, which helps to prevent the formation of air pressure between the outer cover 2 and the inner cover 1 that pushes the inner cover 1 toward the bottle mouth when the easy-open packaging cover is opened and then covered on the bottle mouth again.

[0053] In some embodiments, the easy-open packaging cover is a bottle cap of a wide-mouth bottle.

[0054] See also Figures 5 to 8 In some other embodiments, the first limiting portion 24 includes a first protrusion formed on the inner circumferential surface of the first cylindrical portion 21 .

[0055] The inner cover 1 is used to seal the bottle mouth. The inner cover 1 and the outer cover 2 are arranged separately. The negative pressure in the bottle only drives the inner cover 1 to press against the bottle mouth but has no effect on the outer cover 2. Therefore, the process of unscrewing the outer cover 2 is not affected by the negative pressure in the bottle. The rotational force required to unscrew the outer cover 2 is relatively small, and the consumer can easily unscrew the outer cover 2. Furthermore, the threaded connection part 22 of the outer cover 2 cooperates with the thread at the bottle mouth to form a spiral drive mechanism. The spiral drive mechanism is used to push open the inner cover 1 that seals the bottle mouth through the first protrusion of the first limiting part 24, which is beneficial to reduce the rotational force required for consumers to unscrew the easy-open packaging cover 7, thereby improving the problem of large rotational force required for consumers to unscrew the easy-open packaging cover in the prior art.

[0056] In other embodiments, the second limiting portion 23 includes a second protrusion formed on the inner circumference of the first cylindrical portion 21. In other embodiments, the threaded connection portion 22 includes a thread provided on the inner circumference of the first cylindrical portion 21, and the thread is located on the side of the first limiting portion 24 away from the inner cover 1.

[0057] The first protrusion of the first limiting portion 24 and the second protrusion of the second limiting portion 23 are respectively located on both sides of the inner cover 2 to respectively limit the inner cover 1 from moving toward the two ends of the outer cover 2. Therefore, when the easy-open packaging cover is unscrewed from the bottle, the inner cover 1 and the outer cover 2 cannot be separated. In the process of unscrewing the easy-open packaging cover from the bottle mouth, the inner cover can be pushed open by the first protrusion by the spiral drive mechanism by rotating the outer cover 2 in the first direction. In the process of covering the easy-open packaging cover on the bottle again, the outer cover 2 can be rotated in the second direction opposite to the first direction to squeeze the inner cover 1 toward the bottle mouth through the second protrusion by the spiral drive mechanism, thereby achieving re-sealing of the bottle mouth.

[0058] In other embodiments, the inner cover 1 is made of metal; the outer cover 2 is made of plastic; the metal inner cover 1 has higher density, which is beneficial to ensure that the items in the bottle are isolated from the outside atmosphere, thereby ensuring that the items in the bottle do not deteriorate.

[0059] In some other optional embodiments, the material of the inner cover 1 is plastic; the material of the outer cover 2 is metal.

[0060] In summary, in the technical solution of the present application, the easy-open packaging cover achieves the following technical effects:

[0061] 1. Two-piece cover (inner cover 1 and outer cover 2 are separately set): the main factors affecting consumers' unscrewing force, namely the unscrewing torque and the negative pressure in the bottle, are well separated. During the unscrewing process, the negative pressure only sucks the inner cover 1 and does not affect the unscrewing torque of the outer cover. During the unscrewing process of the outer cover 2, the inner cover 1 is opened by the spiral rise, making it easy to unscrew.

[0062] 2. Curled edge structure (first curled edge and second curled edge) or buckle line / point design (first protrusion and second protrusion): ensure that the two covers (inner cover 1 and outer cover 2) are not separated, do not affect normal use by consumers, and achieve re-sealing after opening.

[0063] 3. Material: It can be a single metal (both the inner cover 1 and the outer cover 2 are metal), a single plastic (both the inner cover 1 and the outer cover 2 are plastic), or a mixture (one of the inner cover 1 and the outer cover 2 is metal and the other is plastic). Different cost designs are made according to the content barrier requirements.

[0064] 4. The negative pressure in the bottle can be removed while unscrewing the lid (outer lid 1), and the secondary sealing function can be achieved at the same time, so that consumers can easily open the metal lid (inner lid 1) and achieve the secondary sealing.

[0065] According to another aspect of the utility model, a packaging container is also disclosed, and the packaging container comprises the easy-to-open packaging cover mentioned above.

[0066] The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An easy-to-open packaging cover, characterized in that: include: Inner cover (1); as well as The outer cover (2) comprises a first cylindrical portion (21) sleeved on the outer side of the inner cover (1), a threaded connection portion (22) provided in the first cylindrical portion (21) and used for connecting with the thread at the bottle mouth, and a first limiting portion (24) provided on the inner circumferential surface of the first cylindrical portion (21), wherein the first limiting portion (24) is located on a side of the inner cover (1) close to the threaded connection portion (22) and protrudes from the inner cover (1) along the radial direction of the first cylindrical portion (21) so as to push open the inner cover (1) when the outer cover (2) is unscrewed from the bottle mouth.

2. The easy-open packaging cover according to claim 1, characterized in that: The outer cover (2) further comprises a second limiting portion (23) provided on the inner circumferential surface of the first cylindrical portion (21); the second limiting portion (23) is provided on a side of the inner cover (1) away from the threaded connection portion (22) and protrudes from the inner cover (1) in a radial direction of the first cylindrical portion (21) so as to limit the inner cover (1) from being separated from the outer cover (2).

3. The easy-open packaging cover according to claim 1, characterized in that: The first limiting portion (24) comprises a first curled edge formed at a first end of the first cylindrical portion (21) along the axial direction of the first cylindrical portion (21).

4. The easy-open packaging cover according to claim 3, characterized in that: The threaded connection portion (22) comprises a protruding portion formed on the first curled edge, the protruding portion protruding toward the middle of the first cylindrical portion (21) along the radial direction of the first cylindrical portion (21) relative to the first curled edge.

5. The easy-open packaging cover according to claim 2, characterized in that: The second limiting portion (23) comprises a second curled edge formed at a second axial end of the first cylindrical portion (21) of the first cylindrical portion (21).

6. The easy-open packaging cover according to any one of claims 1 to 5, characterized in that: The inner cover (1) is made of metal; and / or The outer cover (2) is made of metal.

7. The easy-open packaging cover according to claim 1, characterized in that: The first limiting portion (24) comprises a first protrusion formed on the inner circumferential surface of the first cylindrical portion (21).

8. The easy-open packaging cover according to claim 2, characterized in that: The second limiting portion (23) comprises a second protrusion formed on the inner circumferential surface of the first cylindrical portion (21).

9. The easy-open packaging cover according to claim 2, characterized in that: The threaded connection portion (22) comprises a thread provided on the inner circumferential surface of the first cylindrical portion (21), the thread being located on a side of the first limiting portion (24) away from the inner cover (1).

10. The easy-open packaging cover according to any one of claims 1 to 5 and 7 to 9, characterized in that: The material of the inner cover (1) is metal; the material of the outer cover (2) is plastic; or The material of the inner cover (1) is plastic; the material of the outer cover (2) is metal.

11. The easy-open packaging cover according to claim 1, characterized in that: The inner cover (1) comprises a cover body (11) for covering the bottle mouth, a second cylindrical portion connected to the inner side of the cover body (11) and sleeved in the outer cover (2), and a third curling edge (12) arranged at an end of the second cylindrical portion away from the cover body (11), wherein the projections of the third curling edge (12) and the first limiting portion (24) in a plane perpendicular to the first cylindrical portion (21) at least partially overlap.

12. The easy-open packaging cover according to claim 11, characterized in that: The inner cover (1) is also wrapped with a sealing rubber layer; and / or A sealing rubber pad is also provided on the inner side of the cover body (11) of the inner cover (1).

13. A packaging container, characterized in that: The easy-open packaging cover comprises the easy-open packaging cover according to any one of claims 1 to 12.

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