Double-layer bottle neck of bottle cap and bottle cap using double-layer bottle neck
The double-layer bottle mouth structure solves the problem of plastic bottle cap material selection and structural design, achieves material flexibility and food safety, and has anti-counterfeiting function.
Patent Information
- Application Number
- CN202421789697.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-26
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-07-26
AI Technical Summary
The material selection and structural design of existing plastic bottle caps are difficult to simultaneously meet the hardness requirements and the material requirements for contact with the wine body, resulting in production difficulties.
It adopts a double-layer bottle mouth structure, including an outer mouth, an inner mouth and an inner plug. The outer mouth and the inner mouth are tightly fitted, and the inner plug is connected to the lower part of the inner mouth. The material selection is flexible. The outer mouth and the inner lining are fixedly connected, and the inner lining is fixed to the outer lower cover. The combination is achieved through a threaded connection. The inner lining and the outer lower cover are fixed by inverted buckles and anti-rotation ribs. The outer upper cover is provided with an anti-counterfeiting structure.
It achieves flexibility in material selection, meets different hardness and toughness requirements, ensures food safety, prevents abnormal opening, and provides anti-counterfeiting functions.
Smart Images
Figure CN223328127U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bottle caps, in particular to a bottle mouth of a bottle cap. Background Art
[0002] The plastic bottle caps currently used in mid- to high-end alcoholic beverages are typically multi-piece assembly caps consisting of an upper cap, lower cap, liner, and bottle mouth. The bottle mouth and liner are typically injection-molded as a single piece, with the upper cap screwed to the bottle mouth and the lower cap fixed to the liner.
[0003] A drawback of this technology is that, due to the need for component coordination, the materials of the bottle mouth and lining sometimes have certain hardness requirements. However, among the plastic materials that can meet the hardness requirements, many are not suitable for direct contact with the wine. Even those that are suitable for direct contact with the wine often fail to meet the hardness requirements. This makes material selection and structural application in bottle cap production difficult. Utility Model Content
[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a double-layer bottle mouth of a bottle cap and a bottle cap using the same, which takes into account both food safety requirements and component matching requirements.
[0005] The technical solutions of this utility model are as follows:
[0006] A double-layer bottle mouth of a bottle cap and a bottle cap using the same, comprising an outer mouth, an inner mouth and an inner plug, wherein an inner lining is fixedly connected below the outer mouth, and the outer mouth, inner mouth and inner plug are all cylindrical and through-structured, wherein the outer mouth is located outside the inner mouth, the inner mouth is placed inside the outer mouth and is tightly fitted with the outer mouth, and the inner plug is fixed to the lower part of the inner mouth, the upper end surface of the inner mouth is higher than the upper end surface of the outer mouth, and the lower end surface of the inner plug extends downward into the inner lining below the outer mouth.
[0007] The outer nozzle, inner nozzle and inner plug are all cylindrical structures that pass through from top to bottom.
[0008] Wherein, an outer nozzle thread is provided on the outer side of the outer nozzle.
[0009] Wherein, an inner mouth limiting step is provided on the inner side of the outer mouth.
[0010] Among them, an inner plug limiting step is provided on the inner side of the outer mouth; the outer wall of the inner plug is provided with a convex edge, the lower end face of the convex edge abuts against the inner plug limiting step, and the convex edge is clamped between the lower end face of the inner mouth and the inner plug limiting step.
[0011] Among them, an inner lining is provided below the outer mouth and fixedly connected to the outer mouth, and an undercut and an anti-rotation rib inside the inner lining are provided on the inner side of the inner lining, and the undercut points obliquely upward.
[0012] Wherein, an inner plug is provided below the inner spout, and the upper part of the inner plug extends into the inner spout.
[0013] Wherein, an outer upper cover is provided on the outer side of the outer mouth, an outer upper cover thread matching with the outer mouth thread is provided on the inner side of the outer upper cover, and the outer upper cover is rotatably connected to the outer mouth.
[0014] Wherein, an outer lower cover is provided on the outer side of the inner lining, and the inner lining is fixedly connected to the outer lower cover.
[0015] Beneficial effects:
[0016] By adopting the double-layer bottle mouth structure provided by the utility model, greater freedom can be given to the selection of the material of the outer mouth, and materials of different hardness and toughness can be selected to match with the outer cover according to different matching requirements. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a cross-sectional view of the double-layer bottle mouth assembly according to an embodiment of the present invention.
[0018] Figure 2 This is a cross-sectional view of the inner liner and outer nozzle of an embodiment of the present utility model.
[0019] Figure 3 This is a cross-sectional view of the inner mouth of an embodiment of the present utility model.
[0020] Figure 4 This is a cross-sectional view of the inner plug according to an embodiment of the present invention.
[0021] Figure 5 This is a cross-sectional view of a complete bottle cap assembly according to an embodiment of the present invention.
[0022] Figure 6 This is a cross-sectional view of the outer cover of an embodiment of the present utility model.
[0023] Figure 7 This is a cross-sectional view of the outer lower cover of an embodiment of the present utility model.
[0024] Figure 8 It is a schematic diagram of the bottleneck structure corresponding to the present utility model.
[0025] Reference numerals:
[0026] 1—external nozzle, 11—external nozzle thread, 12—inner nozzle limiting step, 13—inner plug limiting step;
[0027] 2—inner mouth;
[0028] 3—inner lining, 31—undercut, 32—inner lining anti-rotation rib, 33—outer cutout, 34—inner lining anti-rotation rib;
[0029] 4—Nestled;
[0030] 5—outer cover, 51—outer cover thread, 52—notch;
[0031] 6—outer lower cover, 61—outer lower cover buckle, 62—outer lower cover anti-rotation rib, 63—anti-counterfeiting beard;
[0032] 7—bottleneck, 71—locking hoop, 72—bottleneck anti-rotation rib. DETAILED DESCRIPTION
[0033] The present invention will be described in further detail below with reference to the accompanying drawings.
[0034] Example:
[0035] like Figures 1 to 4 As shown, a double-layer bottle mouth of a bottle cap includes an outer mouth 1 and an inner mouth 2. The outer mouth 1 is located outside the inner mouth 2, and the inner mouth 2 is placed inside the outer mouth 1 and tightly fits with the outer mouth 1.
[0036] The inner mouth 2 is a cylindrical structure that passes through from top to bottom. An outer mouth thread 11 is provided on the outside of the outer mouth 1. An inner mouth limiting step 12 and an inner plug limiting step 13 are also provided on the inside of the outer mouth 1. An inner liner 3 is provided below the outer mouth 1. The inner liner 3 and the outer mouth 1 are integrally injection-molded. An undercut 31 and an anti-rotation rib 32 are provided on the inner side of the inner liner 3. The undercut 31 points obliquely upward. An inner plug 4 is provided below the inner mouth 2. The inner plug 4 passes through from top to bottom, and its upper part extends into the inner side of the inner mouth 2.
[0037] like Figure 5 As shown, when the inner liner 3 is pressed onto the bottle neck 7 (which is provided with a locking collar 71 and a bottle neck anti-rotation rib 72), the wine in the bottle flows out of the bottle through the inner plug 4 and inner spout 2, without any contact with the outer spout 1 or the inner liner 3. The inner plug 4 can be made of HDPE, and the inner spout 2 can be made of PET, both of which are permitted by national standards to come into contact with wine.
[0038] like Figure 5 As shown, an outer cover 5 is provided on the outer side of the outer nozzle 1 , and an outer cover thread 51 matching the outer nozzle thread 11 is provided on the inner side of the outer cover 5 , and the outer cover 5 is rotatably connected to the outer nozzle 1 .
[0039] In order to prevent abnormal opening, that is, the bottle cap is not unscrewed by rotating the outer cover 5, but forcibly pulling the outer cover 5 to separate it from the outer mouth 1, the outer mouth thread 11 needs to have sufficient hardness. PET is a soft material and is usually not suitable for this purpose. However, PC can fully meet this requirement.
[0040] There are many ways to combine the inner lining 3 and the outer lower cover 6. Here is an example:
[0041] like Figure 2 and 5As shown in Figures 1-8, the outer side of the inner liner 3 is provided with an external buckle 33 and an inner liner external anti-rotation rib 34, and the inner side of the outer lower cover 6 is provided with an outer lower cover buckle 61 and an outer lower cover anti-rotation rib 62. The external buckle 33 is buckled under the outer lower cover buckle 61, and the inner liner external anti-rotation rib 34 and the outer lower cover anti-rotation rib 62 form a barrier between the outer lower cover 6 and the inner liner 3, thereby firmly connecting the outer lower cover 6 to the inner liner 3. To remind consumers that the bottle has been opened, an anti-counterfeiting bead 63 is provided on the upper portion of the outer lower cover 6, and a notch 52 is provided on the outer upper cover 5 at a corresponding position. The anti-counterfeiting bead 63 is placed in the notch 52. When the bottle cap is opened, the anti-counterfeiting bead 63 breaks off, and consumers can tell from the broken anti-counterfeiting bead 63 that the bottle of wine has been opened.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.
Claims
1. A double-layer bottle mouth of a bottle cap, characterized in that: It includes an outer mouth, an inner mouth and an inner plug. The lower part of the outer mouth is fixedly connected to an inner lining. The outer mouth, inner mouth and inner plug are all cylindrical up and down through structures. The outer mouth is located outside the inner mouth, and the inner plug is fixed to the lower part of the inner mouth. The upper end surface of the inner mouth is higher than the upper end surface of the outer mouth, and the lower end surface of the inner plug extends downward to the inner lining below the outer mouth; an inner mouth limiting step is provided on the inner side of the outer mouth, and the lower end surface of the inner mouth abuts against the inner mouth limiting step.
2. The double-layer bottle mouth of a bottle cap according to claim 1, characterized in that: An inner plug limiting step is provided on the inner side of the outer spout below the inner spout limiting step, and a convex edge is provided on the outer wall of the inner plug, the lower end face of the convex edge abuts against the inner plug limiting step, and the convex edge is clamped between the lower end face of the inner spout and the inner plug limiting step.
3. A bottle cap using a double-layer bottle mouth according to any one of claims 1 to 2, characterized in that: It also includes an outer upper cover and an outer lower cover. The inner side of the lining is provided with an undercut and an anti-rotation rib inside the lining. The undercut points obliquely upwards. The outer side of the outer mouth is provided with an outer mouth thread. The inner side of the outer upper cover is provided with an outer cover thread. The outer upper cover is rotatably connected to the outer side of the outer mouth, and the outer lower cover is fixedly connected to the outer side of the lining.
4. The bottle cap according to claim 3, wherein: The inner plug is located below the upper end surface of the inner mouth.
5. The bottle cap according to claim 3, wherein: The outer side of the inner lining is provided with an outer buckle and an outer anti-rotation rib of the inner lining, the inner side of the outer lower cover is provided with an outer lower cover buckle and an outer lower cover anti-rotation rib, and the outer buckle is buckled below the outer lower cover buckle.
6. The bottle cap according to claim 5, wherein: The upper portion of the outer lower cover is provided with an anti-counterfeiting whisker, and the lower portion of the outer upper cover is provided with a corresponding notch, and the anti-counterfeiting whisker is placed in the notch.