Bottleneck diaphragm structure, diaphragm cover and container
By setting a notch and a flange design in the sealing area of the bottle mouth film, stress is concentrated at the notch position, which solves the problem of difficult opening of existing lactic acid bacteria beverage films and achieves a convenient film peeling effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 宁波益富乐生物科技有限公司
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-12
AI Technical Summary
The current film sealing process for lactic acid bacteria beverages is quite difficult, requiring scissors to cut the seal, making it hard to open easily.
A notch is set in the sealing area of the diaphragm at the bottle mouth to concentrate stress at the notch, and combined with the flange design, it makes it easy to peel off the diaphragm.
This allows for easy peeling of the membrane, improving the convenience and efficiency of opening the seal.
Smart Images
Figure CN224225712U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of beverage containers, and in particular to a bottle mouth diaphragm structure, diaphragm cap, and container. Background Technology
[0002] Beverage containers typically consist of a bottle body and a cap, with the cap usually connected to the bottle body via threads. However, for lactic acid bacteria beverages, the bottle opening is sealed using a membrane thermoforming method. For example, AD Calcium Milk, Jie Jie Le, and Yakult all use membrane sealing. The resulting membrane cap is often difficult to open, requiring scissors to cut the membrane to allow consumption. Utility Model Content
[0003] To facilitate the removal of the membrane, the primary objective of this application is to provide a membrane structure for the bottle neck.
[0004] The bottle neck diaphragm structure provided in this application adopts the following technical solution:
[0005] A bottle neck diaphragm structure, comprising:
[0006] The nozzle area is used to seal the bottle opening;
[0007] A sealing area, connected to the outer edge of the nozzle area, for sealing connection with the port face at the outer edge of the bottle mouth; and
[0008] The enclosure area is connected to the outer edge of the sealing area and is used to fit against the outer peripheral wall of the bottle opening;
[0009] The enclosure area has at least two spaced openings circumferentially distributed, and a lift-up portion that can be separated from the outer peripheral wall of the bottle opening is formed between two adjacent openings.
[0010] By adopting the above technical solution, the nozzle area is aligned with the opening position of the bottle mouth to seal the bottle mouth, the sealing area is connected to the end face of the bottle mouth to achieve a seal on the bottle mouth, the enclosure area connects the entire membrane to the bottle mouth, and at the same time, a notch is opened at the outer edge of the enclosure area to make it easier to remove the membrane later. The opening of the notch allows the stress in the enclosure area to be concentrated. During the operation of removing the membrane, the stress is concentrated at the notch position by acting on the lifting part, thereby making the membrane removal operation easier.
[0011] Preferably, the notch extends from the outer edge of the enclosure area toward the sealing area, and the notch has an arc-shaped termination section close to the sealing area.
[0012] By adopting the above technical solution, the arc-shaped termination segment closes one end of the notch.
[0013] Preferably, the arc-shaped termination segment is connected with a cut extending toward the sealing area.
[0014] By adopting the above technical solution, the incision setting can concentrate stress on the incision during the process of peeling off the film, making the peeling operation easier.
[0015] Preferably, it includes a PET layer, an aluminum foil layer, and a PE layer connected in sequence, with the PE layer facing the bottle opening side.
[0016] By adopting the above technical solution, the PET layer placed on the outer layer has good thermal stability and a certain tensile strength, the aluminum foil layer placed in the middle layer plays a supporting role and can prevent moisture loss from the container, and the PE layer placed in the inner layer can achieve a good heat-sealing connection with the port surface.
[0017] Preferably, the thickness of the PET layer is 5-13 μm, the thickness of the aluminum foil layer is 30-50 μm, and the thickness of the PE layer is 50-70 μm.
[0018] By adopting the above technical solution, the thickness settings of each layer enable the entire membrane to achieve better performance.
[0019] Preferably, the notch extends from the outer edge of the enclosure area toward the sealing area, and the notch is a triangular notch with the apex of the triangular notch facing one side of the sealing area.
[0020] By adopting the above technical solution, the triangular notch design allows stress concentration at the apex of the notch during the tearing process, making it easier to tear the film from the notch position.
[0021] To facilitate the removal of the membrane, a second objective of this application is to provide a membrane cover.
[0022] The membrane cover provided in this application adopts the following technical solution:
[0023] A membrane cap includes the aforementioned bottle neck membrane structure, wherein the sealing area extends outward from the outer edge of the sealing area and is folded over.
[0024] By adopting the above technical solution, after the enclosure area is folded over relative to the sealed area, the opening can concentrate the stress at the opening position when force is applied to the lifting part, making it easier to lift the membrane.
[0025] Preferably, it also includes a flange connected to the enclosure area, the flange being able to flip along the outer edge of the enclosure area.
[0026] By adopting the above technical solution, the flange can be separated from the bottle mouth without being connected, making it easier to easily peel off the film by applying force to the flange.
[0027] A third objective of this application is to provide a container to facilitate the removal of the membrane.
[0028] The container provided in this application adopts the following technical solution:
[0029] A container comprising:
[0030] The bottle body has a cavity and a bottle opening communicating with the cavity, the bottle opening having a port face at its outer edge; and
[0031] The membrane cap has a nozzle area positioned above the bottle opening to seal it, a sealing area connected to the port face, and a sealing area surrounding the outer peripheral wall of the bottle opening.
[0032] By adopting the above technical solution, an opening is made at the outer edge of the enclosure area, so that when a force is applied to the opening, the stress can be concentrated at the opening position, making it easier to open the membrane.
[0033] To facilitate the removal of the membrane, a fourth objective of this application is to provide a container.
[0034] The container provided in this application adopts the following technical solution:
[0035] A container comprising:
[0036] The bottle body has a cavity and a bottle opening communicating with the cavity, the bottle opening having a port face at its outer edge; and
[0037] The membrane cap has the following features: the nozzle area is positioned above the bottle mouth to seal it; the sealing area is connected to the port face; the enclosure area surrounds the outer peripheral wall of the bottle mouth; and the flange is separated from the outer peripheral wall of the bottle mouth.
[0038] By adopting the above technical solution, the flange can be easily held and force can be applied quickly due to its separation from the bottle mouth. During the process of peeling off the film, the stress can be concentrated at the notch, making it easier to peel off the film.
[0039] In summary, this application includes at least one of the following beneficial technical effects:
[0040] 1. By opening a notch at the outer edge of the enclosure area, stress can be concentrated at the notch when force is applied to the opening part, making it easier to open the diaphragm and open the bottle mouth;
[0041] 2. By connecting the notch to the notch or setting the notch as a triangular notch, the stress can be better concentrated at the apex of the notch or notch, making it easier to peel off the diaphragm.
[0042] 3. By connecting and setting a flange on the enclosure area, it is easier to apply force to the diaphragm and improve the convenience of the diaphragm opening operation. Attached Figure Description
[0043] Figure 1 This is a schematic diagram of the diaphragm structure at the bottle mouth in Example 1;
[0044] Figure 2 This is a schematic diagram of the layered structure of the diaphragm structure at the bottle mouth in Example 1;
[0045] Figure 3 This is a schematic diagram of the diaphragm structure at the bottle mouth in Example 2;
[0046] Figure 4 This is a schematic diagram of the diaphragm structure at the bottle mouth in Example 3;
[0047] Figure 5 This is a schematic diagram of the membrane cap structure in Example 4;
[0048] Figure 6 This is a top view of the membrane cover in Example 4;
[0049] Figure 7 This is a schematic diagram of the membrane cap structure in Example 5;
[0050] Figure 8 This is a schematic diagram of the membrane cap structure in Example 6;
[0051] Figure 9 This is a schematic diagram of the container structure in Example 7;
[0052] Figure 10 This is an exploded view of the container in Example 7;
[0053] Figure 11 This is a schematic diagram of the container structure in Example 8;
[0054] Figure 12 This is a schematic diagram of the container structure in Example 9.
[0055] Explanation of reference numerals in the attached drawings: 10. Diaphragm; 11. Mouth area; 12. Sealing area; 13. Enclosure area; 14. Notch; 141. Arc-shaped termination section; 142. Cut; 143. Top corner; 15. PET layer; 16. Aluminum foil layer; 17. PE layer; 18. Flanged edge; 20. Bottle body; 21. Bottle mouth; 211. Port face. Detailed Implementation
[0056] The present application will be further described in detail below with reference to the accompanying drawings.
[0057] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0058] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1
[0059] Figure 1 and Figure 2 A bottle neck film structure is shown, which is generally circular and planar in shape, including a PET layer 15, an aluminum foil layer 16, and a PE layer 17 connected in sequence. In actual sealing, the PET layer 15 is placed on the outermost layer 17PE15PET of the bottle neck 21, and the PE layer 17 is placed on the inner layer 17PE15PET of the bottle neck 21. The thickness of the PET layer 15 is 5-13um, the thickness of the aluminum foil layer 16 is 30-50um, and the thickness of the PE layer 17 is 50-70um. In this embodiment, the thickness of the PET layer 15 is 8um, the thickness of the aluminum foil layer 16 is 40um, and the thickness of the PE layer 17 is 54um.
[0060] The diaphragm structure at the bottle neck includes, from the inside out, a die region 11, a sealing region 12, and a containment region 13. The die region 11 corresponds to the opening of the bottle neck 21, and its area is greater than or equal to the opening area of the bottle neck 21, used to close the opening of the bottle neck 21. The sealing region 12 corresponds to the port face 211 of the bottle neck 21 and is heat-sealed to achieve a sealed connection with the port face 211, thereby sealing the communication between the inner cavity of the container and the outside. The containment region 13, as a skirt-like structure, can be bonded to the outer peripheral wall of the bottle neck 21, which, while isolating the sealing region 12, increases the connection strength between the diaphragm 10 and the bottle neck 21.
[0061] In this embodiment, the enclosure area 13 has a plurality of circumferentially distributed notches 14 at its outer edge. The notches 14 have openings near the outer edge of the enclosure area 13 and extend from the openings toward the sealing area 12. The extended ends of the notches 14 are arc-shaped termination sections 141, which are not connected to the sealing area 12.
[0062] In this embodiment, four notches 14 are evenly distributed around the perimeter, and a lifting part is formed between two adjacent notches 14. The width of the notch 14 is much smaller than the arc of the lifting part, so that when a force is applied to the lifting part, the stress can be concentrated at the notch 14 position, making it convenient to tear the film 10 from the notch 14 position to open the bottle mouth 21. Example 2
[0063] See Figure 3 A bottle neck diaphragm structure differs from Embodiment 1 in that the arc-shaped termination segment 141 is also connected to a cut 142 extending toward the sealing area 12. The width of the cut 142 is smaller than the width of the notch 14, so that when a force is applied to the lifting part, the stress at the cut 142 position can be more concentrated and the diaphragm 10 can be torn open more easily. Example 3
[0064] See Figure 4 A bottle neck diaphragm structure, which differs from Embodiment 1 in that the notch 14 is a triangular notch with a triangular cross-section. The triangular notch has a apex 143 on the side near the sealing area 12, so that when a force is applied to the lifting part, the stress at the apex 143 position can be more concentrated and the diaphragm 10 can be torn open more easily. Example 4
[0065] See also Figure 5 and Figure 6 A membrane cap includes a bottle neck membrane structure as shown in Embodiment 1 or Embodiment 2, wherein the sealing area 13 extends outward from the outer edge of the sealing area 12 and is folded over. In this embodiment, taking the bottle neck membrane structure of Embodiment 2 as an example, the sealing area 13 can be connected to the outer peripheral wall of the bottle neck 21 after extending outward from the outer edge of the sealing area 12 and being folded over. Example 5
[0066] See Figure 7 A membrane cap, including a bottle neck membrane structure as in Example 3, wherein the sealing area 13 extends outward from the outer edge of the sealing area 12 and is folded over. Example 6
[0067] See Figure 8 A membrane cap includes a bottle mouth membrane structure as described in any of the embodiments 1 to 3. The sealing area 13 extends outward from the outer edge of the sealing area 12 and is folded over. A flange 18 is also connected to one side of the lifting portion of the sealing area 13. The flange 18 can be flipped along the outer edge of the lifting portion. Example 7
[0068] See also Figure 9 and Figure 10A container includes a bottle body 20 and a membrane cap as described in Embodiment 4. The bottle body 20 has a cavity and a bottle mouth 21 communicating with the cavity. The bottle mouth 21 has a port face 211 at its outer edge. The membrane cap is connected to the bottle mouth 21. The nozzle area 11 of the membrane cap is placed above the bottle mouth 21 to close the bottle mouth 21. The sealing area 12 is connected to the port face 211. The sealing area 13 surrounds the outer peripheral wall of the bottle mouth 21. Example 8
[0069] See Figure 11 A container includes a bottle body 20 and a membrane cap as described in Embodiment 3. The bottle body 20 has a cavity and a bottle mouth 21 communicating with the cavity. The bottle mouth 21 has a port face 211 at its outer edge. The membrane cap is connected to the bottle mouth 21. The nozzle area 11 of the membrane cap is placed above the bottle mouth 21 to close the bottle mouth 21. The sealing area 12 is connected to the port face 211. The sealing area 13 surrounds the outer peripheral wall of the bottle mouth 21. Example 9
[0070] See Figure 12 A container includes a bottle body 20 and a membrane cap as described in Example 6, wherein the flange 18 is separated from the outer peripheral wall of the bottle mouth 21.
[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A diaphragm structure for a bottle neck, characterized in that, include: The nozzle area (11) is used to seal the bottle opening (21); A sealing area (12), connected to the outer edge of the nozzle area (11), is used for a sealing connection with the port face (211) at the outer edge of the bottle mouth (21); and Enclosure area (13) is connected to the outer edge of sealing area (12) and is used to fit against the outer peripheral wall of bottle mouth (21); The enclosure area (13) has at least two spaced openings (14) in the circumferential direction, and a lifting part that can be separated from the outer peripheral wall of the bottle mouth (21) is formed between two adjacent openings (14).
2. The bottle neck diaphragm structure according to claim 1, characterized in that, The notch (14) extends from the outer edge of the enclosure area (13) toward the sealing area (12), and the notch (14) has an arc-shaped terminating section (141) near the sealing area (12).
3. The bottle neck diaphragm structure according to claim 2, characterized in that, The arc-shaped termination segment (141) is connected to a cut (142) extending toward the sealing area (12).
4. The bottle neck diaphragm structure according to claim 1, characterized in that, It includes a PET layer (15), an aluminum foil layer (16) and a PE layer (17) connected in sequence, with the PE layer (17) facing the bottle opening (21).
5. The bottle neck diaphragm structure according to claim 4, characterized in that, The PET layer (15) has a thickness of 5-13 μm, the aluminum foil layer (16) has a thickness of 30-50 μm, and the PE layer (17) has a thickness of 50-70 μm.
6. The bottle neck diaphragm structure according to claim 1, characterized in that, The notch (14) extends from the outer edge of the enclosure area (13) toward the sealing area (12). The notch (14) is a triangular notch with the apex (143) of the triangular notch facing one side of the sealing area (12).
7. A membrane cover, characterized in that, Includes the bottle neck diaphragm structure as described in any one of claims 1-6, wherein the sealing area (13) extends outward from the outer edge of the sealing area (12) and is folded over.
8. The membrane cover according to claim 7, characterized in that, It also includes a flange (18) connected to the enclosure area (13), which can be flipped along the outer edge of the enclosure area (13).
9. A container, characterized in that, include: Bottle body (20), the bottle body (20) having a cavity and a bottle mouth (21) communicating with the cavity, the bottle mouth (21) having a port face (211) at its outer edge; and As claimed in claim 7, the nozzle area (11) is placed above the bottle mouth (21) to close the bottle mouth (21), the sealing area (12) is connected to the port face (211), and the enclosure area (13) surrounds the outer peripheral wall of the bottle mouth (21).
10. A container, characterized in that, include: Bottle body (20), the bottle body (20) having a cavity and a bottle mouth (21) communicating with the cavity, the bottle mouth (21) having a port face (211) at its outer edge; and As described in claim 8, the nozzle area (11) is placed above the bottle mouth (21) to close the bottle mouth (21), the sealing area (12) is connected to the port face (211), the enclosure area (13) surrounds the outer peripheral wall of the bottle mouth (21), and the flange (18) is separated from the outer peripheral wall of the bottle mouth (21).