Bottle opening structure for beverage packaging

Abstract

The utility model relates to a bottle opening structure, in particular to a bottle opening structure for beverage packaging, and belongs to the technical field of liquid packaging. A bottle opening structure for beverage packaging comprises a bottle opening and a bottle cap, the bottle opening is provided with a bottle neck and a bottle lip, a first threaded body is arranged on the vertical face of the outer side of the bottle neck, and a sealing film is arranged on the bottle lip; the bottle cap comprises a sleeve body and a cap body arranged at the end of the sleeve body, a second threaded body matched with the first threaded body is arranged on the vertical face of the inner side of the sleeve body, and the cap body is connected with the sleeve body in an opening and closing mode. The sealing film is arranged on the bottle lip, so that the sealing effect is achieved; meanwhile, the opening and closing type bottle cap is spirally connected with the bottle opening, so that a consumer can use the bottle conveniently.

Description

Technical Field

[0001] The utility model relates to a bottle mouth structure, in particular to a bottle mouth structure used for beverage packaging, belonging to the technical field of liquid packaging. Background Art

[0002] The packaging of beverages is usually divided into bags, cans and bottles. In the subdivision of bottles, it can be divided into small-capacity packaging and large-capacity packaging. Small-capacity packaging is usually within 250ml, such as lactic acid bacteria beverages. Due to the small capacity, considering that consumers can finish drinking in a short time, aluminum-plastic heat-sealing film is usually used for sealing, and the aluminum-plastic heat-sealing film can be torn or punctured when used. This sealing method is safe and reliable, can save production costs, and is also in line with people's daily habits. However, this method is limited to small-capacity packaging. For large-capacity beverages, such as 500ml or more, it is usually difficult for consumers to drink it all in one breath, so it is not suitable to use aluminum-plastic film heat sealing. In the prior art, a screw cap is usually used to solve this problem. However, the sealing effect of the screw cap is not good. Even if a locking ring connected to it circumferentially and needs to be destroyed when opening is provided, even if a sealing gasket is provided inside the screw cap, it is difficult to ensure the sealing effect of the liquid in the bottle. Therefore, a screw cap bottle of about half a liter is usually suitable for beverages that do not require a high sealing effect, and such beverages are usually added with some edible preservatives. However, it is difficult to apply to beverages / liquid foods that have high sealing requirements, such as lactic acid bacteria drinks, fresh milk, eight-treasure porridge, etc.

[0003] In the prior art, there is a functional beverage called "Scream", with a bottle capacity of about 500ml. It not only uses an aluminum-plastic heat-sealing film on the bottle mouth, but also uses a screw cap with an opening and closing function. First, it has an aluminum-plastic heat-sealing film, so it can better seal the substances in the bottle; secondly, it has a screw cap, which can also play a certain temporary protective role when the drink cannot be finished in a short time. However, it has a structure similar to a pacifier. If the screw cap is not removed, it needs to be drunk through the pacifier structure, which is not in line with the usage habits of adults. Moreover, opening the bottle mouth by twisting the screw cap cannot be opened instantly, which is not convenient enough. Utility Model Content

[0004] The utility model aims to solve the above problems, thereby providing a bottle mouth structure for beverage packaging. The bottle mouth structure has the advantages of not only good sealing effect, but also convenient use.

[0005] The technical solution of the utility model to solve the above problems is as follows:

[0006] A bottle mouth structure for beverage packaging comprises a bottle mouth and a bottle cap, wherein the bottle mouth has a bottleneck and a bottle lip, the outer vertical surface of the bottleneck is provided with a first threaded body, and the bottle lip is provided with a sealing film; the bottle cap comprises a sleeve body and a cover body arranged at the end of the sleeve body, the inner vertical surface of the sleeve body is provided with a second threaded body adapted to the first threaded body, and the cover body is connected to the sleeve body in an open-close manner.

[0007] In the above technical solution of the utility model, a sealing effect is achieved by setting a sealing film on the bottle lip; at the same time, an opening and closing type bottle cap is spirally connected to the bottle mouth, which is convenient for consumers to use. When using, there is no need to unscrew the bottle cap, and only the cover body of the bottle cap needs to be opened, which can achieve the purpose of instant opening; after opening the cover body, a through hole appears on the bottle cap, which can be used directly with the mouth, and the through hole has a large diameter, which has the advantage of being convenient for drinking.

[0008] As a preferred embodiment of the above technical solution, a retaining ring for limiting the progress of the spiral is provided between the sleeve body and the bottleneck, and the retaining ring is provided on the bottle mouth and is located below the first threaded body.

[0009] As a preferred embodiment of the above technical solution, when the end surface of the sleeve body abuts against the retaining ring, the cover body and the sealing membrane are in non-force contact or a gap is left.

[0010] In the above technical solution of the utility model, the design of non-force contact or leaving a gap can avoid the existence of the sealing film affecting whether the bottle cap is tightened, so that consumers always have the same tightening feeling when tightening the bottle cap regardless of whether the heat sealing film is torn off.

[0011] As a preferred embodiment of the above technical solution, the cover body is connected to the sleeve body in a snap-on manner.

[0012] As a preferred embodiment of the above technical solution, the bottle cap further comprises a lapped portion, which is a flexible structure, one end of which is fixedly connected to the sleeve body, and the other end of which is fixedly connected to the cap body.

[0013] In the above technical solution of the utility model, the flexible structure does not refer to a structure made of a flexible material, but refers to a structure that can produce deformation, including a structure made of a flexible material, and can also be a variable structure made of a rigid material. For example, the material of the lap joint is the same as that of the sleeve and the sleeve body, both of which are high molecular polymers, such as polypropylene.

[0014] As a preferred embodiment of the above technical solution, the sleeve body further includes an annular portion extending inwardly from its upper end surface.

[0015] In the above technical solution of the utility model, the annular portion can exert a restraining effect on the sleeve body, thereby improving the tightening effect of the bottle cap.

[0016] As a preferred embodiment of the above technical solution, a first annular strip protruding upward is arranged on the end surface of the annular portion; a second annular strip protruding downward is arranged on the covering surface of the cover body; and the second annular strip is arranged in coordination with the first annular strip.

[0017] In the above technical solution of the utility model, the coordinated arrangement of the first annular strip and the second annular strip can improve the sealing effect of the bottle cap itself.

[0018] As a preferred embodiment of the above technical solution, a buckle is provided on the cover body, and a buckle groove cooperating with the buckle is provided on the annular portion.

[0019] As a preferred embodiment of the above technical solution, the cover body is connected to the sleeve body in an expansion plug manner.

[0020] As a preferred embodiment of the above technical solution, the cover body is an independently arranged plug, and a protrusion extending radially to the periphery is arranged at the lower end of the plug, and a limiting ring is arranged above the protrusion; the protrusion includes an upper inclined surface and a lower inclined surface; the intersection of the upper inclined surface and the lower inclined surface has a maximum outer diameter a, the minimum outer diameter of the upper inclined surface is b, and the minimum outer diameter of the lower inclined surface is c, and the sleeve body 21 also includes an annular portion formed by extending inwardly from its upper end surface, and the inner diameter of the annular portion is d, then c<b≤d.

[0021] In the above technical solution of the utility model, the expansion plug type connection is a more reliable connection method. The cover body needs to be pulled out when in use. From the perspective of usage habits, the convenience is slightly lower than the above-mentioned buckle type because the force used to pull the plug is greater, but the sealing effect will be better.

[0022] In summary, the utility model has the following beneficial effects:

[0023] 1. The utility model achieves a sealing effect by arranging a sealing film on the bottle lip; at the same time, an opening and closing bottle cap is spirally connected to the bottle mouth, which is convenient for consumers to use;

[0024] 2. In the present invention, when the end face of the sleeve body abuts against the retaining ring, the cap body and the sealing film are in non-force contact or with a gap. The design of non-force contact or with a gap can avoid the influence of the sealing film on whether the bottle cap is tightened or not; consumers can always have the same tightening feel when tightening the bottle cap regardless of whether the heat-sealing film is torn off or not.

[0025] 3. In the present invention, the cooperation of the first annular strip and the second annular strip can improve the sealing effect of the bottle cap itself;

[0026] 4. In the present invention, the expansion plug type connection is a more reliable connection method. When using it, the cover body needs to be pulled out. From the perspective of usage habits, it is slightly less convenient than the above-mentioned buckle type because the force used to pull the plug is greater, but the sealing effect will be better. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic structural diagram of Example 1;

[0028] Figure 2 is a schematic diagram of the bottle cap structure in Example 1;

[0029] Figure 3 is a schematic structural diagram of Example 2;

[0030] In the figure, 1-bottle mouth, 2-bottle cap, 3-stop ring, 11-bottom of the bottle, 12-sealing film, 21-sleeve body, 22-cap body, 23-lap joint;

[0031] 111 - first threaded body, 211 - annular portion, 212 - first annular strip, 213 - second threaded body, 221 - buckle, 222 - second annular strip, 223 - protrusion, 224 - limiting ring, 2111 - buckle groove, 2231 - upper inclined surface, 2232 - lower inclined surface. DETAILED DESCRIPTION

[0032] The present invention is further explained below in conjunction with the accompanying drawings.

[0033] This specific implementation is only an explanation of the utility model, not a limitation of the utility model. Any changes made by those skilled in the art after reading the specification of the utility model will be protected by the patent law as long as they are within the scope of the claims.

[0034] Example 1

[0035] like Figure 1 As shown, a bottle mouth structure for beverage packaging includes a bottle mouth 1 and a bottle cap 2.

[0036] The bottle mouth 1 comprises a bottleneck 11 and a bottle lip, and a sealing film 12 is arranged on the bottle lip.

[0037] like Figure 1~2 As shown, the specific structure of the bottle cap 2 is as follows:

[0038] The bottle cap 2 comprises a sleeve 21, a cover 22 and a lap part 23, and the cover 22 and the sleeve 21 are snap-connected via the lap part 23. Specifically, the lap part 23 is a flexible structure, one end of which is fixedly connected to the sleeve 21, and the other end of which is fixedly connected to the cover 22; and the sleeve 21 and the cover 22 are an opening and closing structure, that is, the cover 22 can be snap-connected to the end of the sleeve 21, and the cover 22 can also be lifted from the end of the sleeve 21.

[0039] In order to improve the sealing effect, a set of sealing structures is designed, that is, after the bottle cap 2 is screwed onto the bottle mouth 1 and the cover body 22 is buckled with the sleeve body 21, the substance in the bottle is prevented from flowing out. Specifically, the sleeve body 21 also includes an annular portion 211 extending inward from its upper end surface; a first annular strip 212 protruding upward is arranged on the end surface of the annular portion 211; a second annular strip 222 protruding downward is arranged on the covering surface of the cover body 22; the second annular strip 222 is arranged in cooperation with the first annular strip 212.

[0040] In order to improve the buckling effect between the cover body 22 and the sleeve body 21 , a buckle 221 is provided on the cover body 22 , and a buckle groove 2111 cooperating with the buckle 221 is provided on the annular portion 211 .

[0041] In order to enable the bottle cap 2 to be connected with the bottle mouth 1, the outer side elevation of the bottle neck 11 is provided with a first threaded body 111, and the inner side elevation of the sleeve 21 is provided with a second threaded body 213 adapted to the first threaded body 111. In order to improve the screw connection effect of the bottle cap 2, a retaining ring 3 for limiting the progress of the screw is provided between the sleeve 21 and the bottle neck 11. The retaining ring 3 is provided on the bottle mouth 1 and below the first threaded body 111; and when the end face of the sleeve 21 abuts against the retaining ring 3, the cap 22 and the sealing film 12 are in non-forced contact.

[0042] Example 2

[0043] like Figure 3 As shown, a bottle mouth structure for beverage packaging includes a bottle mouth 1 and a bottle cap 2.

[0044] The bottle mouth 1 comprises a bottleneck 11 and a bottle lip, and a sealing film 12 is arranged on the bottle lip.

[0045] like Figure 3 As shown, the specific structure of the bottle cap 2 is as follows:

[0046] The cover body 22 is an independently arranged plug, and a protrusion 223 extending radially to the periphery is arranged at the lower end of the plug, and a limiting ring 224 is arranged above the protrusion 223; the protrusion 223 includes an upper inclined surface 2231 and a lower inclined surface 2232; the intersection of the upper inclined surface 2231 and the lower inclined surface 2232 has a maximum outer diameter a, the minimum outer diameter of the upper inclined surface is b, and the minimum outer diameter of the lower inclined surface is c, and the sleeve body 21 also includes an annular portion 211 formed by extending inward from its upper end surface, and the inner diameter of the annular portion 211 is d, then c<b≤d.

[0047] In order to enable the bottle cap 2 to be connected with the bottle mouth 1, the outer side elevation of the bottle neck 11 is provided with a first threaded body 111, and the inner side elevation of the sleeve 21 is provided with a second threaded body 213 adapted to the first threaded body 111. In order to improve the screw connection effect of the bottle cap 2, a retaining ring 3 for limiting the progress of the screw is provided between the sleeve 21 and the bottle neck 11. The retaining ring 3 is provided on the bottle mouth 1 and below the first threaded body 111; and when the end face of the sleeve 21 abuts against the retaining ring 3, the cap 22 and the sealing film 12 are in non-forced contact.

Claims

1. A bottle mouth structure for beverage packaging, comprising a bottle mouth (1) and a bottle cap (2), wherein the bottle mouth (1) has a bottle neck and a bottle lip, the outer vertical surface of the bottle neck (11) is provided with a first threaded body, and the bottle lip is provided with a sealing film (12); the bottle cap (2) comprises a sleeve (21) and a cover (22) provided at an end of the sleeve, the inner vertical surface of the sleeve (21) is provided with a second threaded body adapted to the first threaded body, and is characterized in that: The cover body (22) is connected to the sleeve body (21) in an open-close manner.

2. A bottle mouth structure for beverage packaging according to claim 1, characterized in that: A retaining ring (3) for limiting the progress of the spiral is arranged between the sleeve body (21) and the bottleneck (11); the retaining ring (3) is arranged on the bottle mouth (1) and is located below the first threaded body.

3. The bottle mouth structure for beverage packaging according to claim 2, characterized in that: When the end surface of the sleeve (21) abuts against the retaining ring (3), the cover (22) and the sealing membrane (12) are in non-force-bearing contact or a gap is left.

4. The bottle mouth structure for beverage packaging according to claim 1, characterized in that: The cover body (22) is snap-connected to the sleeve body (21).

5. The bottle mouth structure for beverage packaging according to claim 4, characterized in that: The bottle cap (2) further comprises a bridging portion (23), wherein the bridging portion (23) is a flexible structure, one end of which is fixedly connected to the sleeve body (21), and the other end of which is fixedly connected to the cap body (22).

6. The bottle mouth structure for beverage packaging according to claim 5, characterized in that: The sleeve body (21) further comprises an annular portion (211) formed by extending inwardly from its upper end surface.

7. The bottle mouth structure for beverage packaging according to claim 6, characterized in that: A first annular strip (212) protruding upwards is provided on the end surface of the annular portion (211); a second annular strip (222) protruding downwards is provided on the covering surface of the cover body (22); the second annular strip (222) is provided in coordination with the first annular strip (212).

8. The bottle mouth structure for beverage packaging according to claim 6, characterized in that: The cover body (22) is provided with a buckle (221), and the annular portion (211) is provided with a buckle groove (2111) that cooperates with the buckle (221).

9. The bottle mouth structure for beverage packaging according to claim 1, characterized in that: The cover body (22) is connected to the sleeve body (21) in an expansion plug manner.

10. The bottle mouth structure for beverage packaging according to claim 9, characterized in that: The cover body (22) is an independently arranged plug, the lower end of the plug is provided with a protrusion (223) extending radially toward the periphery, and a limit ring (224) is arranged above the protrusion (223); the protrusion (223) comprises an upper inclined surface (2231) and a lower inclined surface (2232); the intersection of the upper inclined surface (2231) and the lower inclined surface (2232) has a maximum outer diameter a, the minimum outer diameter of the upper inclined surface is b, and the minimum outer diameter of the lower inclined surface is c; the sleeve body (21) further comprises an annular portion (211) formed by extending inwardly from its upper end surface, the inner diameter of the annular portion (211) is d, and c<b≤d.

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