Single layer aluminum cylinder tamper-evident cap and container bottle

Abstract

This utility model relates to the field of bottle cap technology, and provides a single-layer aluminum tube anti-pull-out bottle cap and container bottle. The single-layer aluminum tube anti-pull-out bottle cap includes an inner plug, an inner sleeve, an inner cap, and an aluminum tube. The inner sleeve includes an inner upper sleeve and an inner lower sleeve fixedly connected. The lower end of the inner plug is embedded inside the bottle mouth, and the upper end of the inner plug is fixedly connected to the inner wall of the inner upper sleeve. The inner cap is threaded onto the outside of the inner upper sleeve, and the aluminum tube is fitted onto the outside of the inner cap and the inner lower sleeve. The outer wall of the bottle mouth has a groove, and the inner lower sleeve has several claws protruding from its inner wall and engaging in the groove along the circumferential direction. The inner lower sleeve has several notches along the circumferential direction, and the claws are connected to the bottom of the notches. At least one side of the claw has a gap with the notch. This utility model can solve the problem of excessive capping force caused by thickened claws, and it is easy to increase the lifting torque by increasing the wall thickness of the claws. Moreover, it makes the inner lower sleeve and aluminum tube easily damaged or destroyed when criminals forcibly remove the cap, thus improving the anti-counterfeiting effect.

Description

TECHNICAL FIELD

[0001] The utility model relates to bottle cap technical field, specifically, a single layer aluminium cylinder prevents and pulls up bottle cap and container bottle. BACKGROUND

[0002] High-end liquor in order to realize the function of anti -fake, will do anti -fake structure on the packing box, bottle cap, wherein the anti -fake structure of bottle cap is more important. In order to avoid the whole bottle cap being pulled out and filling fake liquor, the clamping groove is arranged at the bottle mouth, and the clamping jaw is arranged on the inner wall of the bottle cap, after the bottle cap is installed on the wine bottle, the clamping jaw is clamped into the clamping groove, and the structure of preventing pulling up is formed.

[0003] In the prior art, for example, the patent document with the announcement number of "CN219116161U" applied by the applicant, the inner sleeve is designed as a split type, the material of the lower inner sleeve is changed to make it not easy to be softened by heat, and the difficulty of pulling the cap is reduced, so as to prevent counterfeiting. However, this way only increases the difficulty of preventing the cap from being pulled to a certain extent, and the cap can still be pulled out by the equipment with great force by the illegal members, the effect is poor, and if the wall thickness of the clamping jaw is increased to increase the pulling torque, the problems of increased pressing force and the like will be caused. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a single layer aluminium cylinder prevents and pulls up bottle cap and container bottle to solve the above-mentioned defects of prior art.

[0005] The utility model realizes the following technical scheme:

[0006] A single layer aluminium cylinder prevents and pulls up bottle cap, including inner plug, inner sleeve, inner cap and aluminium cylinder, the inner sleeve includes fixedly connected inner upper sleeve and inner lower sleeve, the inner plug lower end is embedded in the bottle mouth inside, the inner plug upper end is fixedly connected with the inner wall of the inner upper sleeve, the inner cap is sleeved on the outside of the inner upper sleeve through the thread, and the aluminium cylinder is sleeved on the outside of the inner cap and the inner lower sleeve, the outer wall of the bottle mouth is provided with the clamping groove, the inner lower sleeve is provided with a plurality of clamping jaws protruding from the inner wall and clamped into the clamping groove in the circumferential direction, the inner lower sleeve is provided with a plurality of notches in the circumferential direction, the clamping jaw is connected with the bottom of the notch, and the gap is left between at least one side of the clamping jaw and the notch.

[0007] Optionally, the outer wall top of the clamping jaw is provided with a thickened rib.

[0008] Optionally, the side wall of the inner lower sleeve is provided with a plurality of clamping holes in the circumferential direction, and the side wall of the inner upper sleeve is provided with a plurality of clamping blocks capable of matching with the clamping holes one by one.

[0009] Optionally, the inner wall of the inner lower sleeve is provided with a lower positioning step abutting against the lower end of the inner upper sleeve, and the outer wall of the inner upper sleeve is provided with an upper positioning step abutting against the upper end of the inner lower sleeve.

[0010] Optionally, the inner upper sleeve and the inner lower sleeve are integrally injection molded by two different materials.

[0011] Optionally, the inner upper sleeve is made of PET material, and the inner lower sleeve is made of PC material.

[0012] Optionally, the inner wall of the inner lower sleeve is provided with a plurality of first anti-rotation teeth, and the outer wall of the bottle mouth is provided with a plurality of second anti-rotation teeth capable of cooperating with the first anti-rotation teeth.

[0013] Optionally, the lower end of the first anti-rotation tooth is in a pointed structure, and the two sides thereof are provided with first guide inclined surfaces; and the upper end of the second anti-rotation tooth is in a pointed structure, and the two sides thereof are provided with second guide inclined surfaces.

[0014] The utility model also provides a container bottle, including bottle body and the single layer aluminium cylinder of any one of the utility model discloses the bottle cap of preventing pulling up.

[0015] The utility model discloses at least has following advantage and beneficial effect: in the utility model, the gap is left between the claw and the bottom of the notch at least one side, thereby increasing the elasticity of the claw, can solve the problem that the claw thickening leads to the excessive pressure of the cover, and the wall thickness of the claw is increased to increase the pulling torque (that is, increase the difficulty of pulling the cover), in addition, when the illegal member pulls up the bottle cap, the bending force is transmitted to the gap to form the shearing force in the process that the claw is stressed and bent, which makes the lower edge of the inner lower sleeve more easily broken from the gap (that is, the inner lower sleeve is easily damaged), improves the anti-fake effect, and the deformation amount of the claw is larger when passing through the bottle mouth in the process of pulling up the bottle cap, and the aluminium cylinder is more easily deformed or broken, further improving the anti-fake effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a sectional view of the single layer aluminium cylinder bottle cap of preventing pulling up provided by the utility model;

[0017] Figure 2 It is a structural schematic view of the inner lower sleeve;

[0018] Figure 3 It is a structural schematic view of the inner upper sleeve;

[0019] Figure 4 It is a structural schematic view of the bottle mouth;

[0020] Fig. 1 is an aluminium cylinder, 2 is an inner cover, 3 is an inner upper sleeve, 301 is a clamping block, 302 is an upper positioning step, 4 is an inner lower sleeve, 401 is a notch, 402 is a claw, 4021 is a thickened rib, 403 is a clamping hole, 404 is a gap, 405 is a lower positioning step, 406 is a first anti-rotation tooth, 5 is an inner plug, 6 is a bottle mouth, 601 is a clamping groove, and 602 is a second anti-rotation tooth. DETAILED DESCRIPTION

[0021] Example 1

[0022] Reference Figure 1 A single-layer aluminum cylinder anti-pulling bottle cap, comprising an inner plug 5, an inner sleeve, an inner cap 2 and an aluminum cylinder 1, the inner sleeve comprises an inner upper sleeve 3 and an inner lower sleeve 4 fixedly connected, the lower end of the inner plug 5 is embedded in the inner part of the bottle mouth 6 and sealed with the bottle mouth 6, the upper end of the inner plug 5 is fixedly connected with the inner wall of the inner upper sleeve 3, the fixedly connected mode is preferably hot pressing, the inner plug 5 and the inner upper sleeve 3 should also be sealed, the inner cap 2 is sleeved on the outer part of the inner upper sleeve 3 through threads, and the inner sleeve is sealed between the upper end of the inner sleeve and the inner cap 2 after being connected with the inner cap 2. The aluminum cylinder 1 is sleeved on the outer part of the inner cap 2 and the inner lower sleeve 4, and the structure of the aluminum cylinder 1 is not limited and can adopt the existing technical structure.

[0023] On the basis, the utility model makes improvements as follows, reference Figures 2-4 The outer wall of the bottle mouth 6 is provided with a clamping groove 601, the inner lower sleeve 4 is provided with a plurality of clamping claws 402 protruding from the inner wall thereof and clamped into the clamping groove 601 in the circumferential direction, the inner lower sleeve 4 is provided with a plurality of notches 401 in the circumferential direction, the clamping claw 402 is connected with the bottom of the notch 401, and a gap 404 is left between at least one side of the clamping claw 402 and the notch 401. In order to reduce the process difficulty, the gap 404 is only arranged on one side of the clamping claw 402 in the embodiment, and of course, the gap 404 can also be arranged on both sides of the clamping claw 402 in other embodiments.

[0024] It is worth noting that the arrangement of the gap 404 can increase the elasticity of the clamping claw 402, can solve the problem that the clamping claw 402 is thickened to cause excessive pressing force, and facilitates increasing the pulling torque (i.e. increasing the difficulty of pulling the cap) by increasing the wall thickness of the clamping claw 402 (the thickness of the clamping claw 402 in the prior art is generally 0.9mm-1.2mm, and in the utility model, the clamping claw 402 is thickened to 1.5mm-2.0mm); in addition, in the process of bending of the clamping claw 402 under stress when the illegal person pulls up the bottle cap, the bending force is transmitted to the gap 404 to form a shearing force, which makes the lower edge of the inner lower sleeve 4 more easily broken from the gap 404 (i.e. makes the inner lower sleeve 4 more easily damaged by forcibly pulling the cap), thereby improving the anti-fake effect; and moreover, the arrangement of the gap 404 makes the deformation amount of the clamping claw 402 larger when the clamping claw 402 is externally deformed when passing through the bottle mouth 6 in the process of pulling up the bottle cap, the aluminum cylinder 1 is more easily deformed or broken, and the anti-fake effect is further improved.

[0025] Further, the outer wall top of the clamping claw 402 is provided with a thickened rib 4021 in the embodiment. It is worth noting that the arrangement of the thickened rib 4021 makes the clamping claw 402 more easily in contact with the inner wall of the aluminum cylinder 1 when the clamping claw 402 is externally deformed when passing through the bottle mouth 6 in the process of pulling up the bottle cap, i.e. makes the aluminum cylinder 1 more easily deformed. The thickness of the thickened rib 4021 is not limited, and it is easy to understand that the outer side of the thickened rib 4021 should not exceed the outer wall of the inner lower sleeve 4 to avoid affecting the normal installation of the aluminum cylinder 1.

[0026] The inner wall of the inner lower sleeve 4 is provided with a plurality of first anti-rotation teeth 406, and the outer wall of the bottle mouth 6 is provided with a plurality of second anti-rotation teeth 602 capable of cooperating with the first anti-rotation teeth 406, that is, after the bottle cap is pressed on the bottle mouth 6, the first anti-rotation teeth 406 are inserted between the second anti-rotation teeth 602, and the two jointly act to limit the relative rotation of the bottle cap and the bottle mouth 6. On this basis, in the embodiment, the lower end of the first anti-rotation tooth 406 is in a pointed structure and the two sides thereof are provided with first guide inclined surfaces, and the upper end of the second anti-rotation tooth 602 is in a pointed structure and the two sides thereof are provided with second guide inclined surfaces. It is worth noting that since the capping is usually carried out at high speed by equipment, that is, the capping action is completed in an instant, by arranging the first anti-rotation tooth 406 and the second anti-rotation tooth 602 as described above, it can be avoided that the first anti-rotation tooth 406 and the second anti-rotation tooth 602 are damaged due to the occurrence of tooth stacking (that is, the first anti-rotation tooth 406 and the second anti-rotation tooth 602 are directly pressed downward) during the capping process. It is easy to understand that in actual application, the first guide inclined surface and the second guide inclined surface can be designed to be longer in the height direction.

[0027] In the prior art, the inner upper sleeve 3 and the inner lower sleeve 4 need to be assembled later, and the assembly process is easy to produce debris. In order to solve this problem, in the utility model, the connection mode of the inner upper sleeve 3 and the inner lower sleeve 4 is as follows: the inner upper sleeve 3 and the inner lower sleeve 4 are integrally injection molded by two different materials to avoid later assembly. As an option, the inner upper sleeve 3 in the embodiment is made of PET material, and the inner lower sleeve 4 is made of PC material (PC material has good thermal stability and is not easy to soften when heated). Of course, in other embodiments, materials with similar properties can also be selected.

[0028] On the basis of integrally injection molding the inner upper sleeve 3 and the inner lower sleeve 4, the embodiment further designs a measure for limiting the relative rotation and axial limiting of the two, which is as follows: the side wall of the inner lower sleeve 4 is provided with a plurality of clamping holes 403 in the circumferential direction, and the side wall of the inner upper sleeve 3 is provided with a plurality of clamping blocks 301 capable of one-to-one cooperation with the clamping holes 403, the clamping blocks 301 and the clamping holes 403 interact, that is, the relative rotation of the inner upper sleeve 3 and the inner lower sleeve 4 is limited. The inner wall of the inner lower sleeve 4 is provided with a lower positioning step 405 abutting against the lower end of the inner upper sleeve 3, and the outer wall of the inner upper sleeve 3 is provided with an upper positioning step 302 abutting against the upper end of the inner lower sleeve 4, the upper positioning step 302 and the lower positioning step 405 interact, that is, the axial limiting between the inner upper sleeve 3 and the inner lower sleeve 4 is ensured.

[0029] Embodiment 2

[0030] The embodiment provides a container bottle, which comprises a bottle body and the single-layer aluminum cylinder anti-pulling bottle cap provided in the embodiment 1, and the bottle cap is press-fitted at the bottle mouth 6 of the bottle body.

[0031] The above merely is preferred embodiment of the present utility model, and is not for limiting the present utility model, for the person skilled in the art, the present utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A single-layer aluminum cylinder anti-pulling bottle cap, comprising an inner plug, an inner sleeve, an inner cap and an aluminum cylinder, the inner sleeve comprising an inner upper sleeve and an inner lower sleeve fixedly connected, the inner plug being embedded in the inner part of the bottle mouth, the upper end of the inner plug being fixedly connected with the inner wall of the inner upper sleeve, the inner cap being sleeved on the outer part of the inner upper sleeve through threads, and the aluminum cylinder being sleeved on the outer part of the inner cap and the inner lower sleeve; the outer wall of the bottle mouth is provided with a clamping groove, and the inner lower sleeve is provided with a plurality of clamping claws protruding from the inner wall thereof and clamped into the clamping groove in the circumferential direction, characterized in that, The inner lower sleeve is provided with a plurality of notches in the circumferential direction, and the clamping pawl is connected to the bottom of the notch, and a gap is left between at least one side of the clamping pawl and the notch.

2. The single layer aluminum cylinder tamper-evident cap of claim 1 wherein, The top of the outer wall of the clamping pawl is provided with a thickened rib.

3. The single layer aluminum cylinder tamper-evident cap of claim 1 wherein, The side wall of the inner lower sleeve is provided with a plurality of clamping holes in the circumferential direction, and the side wall of the inner upper sleeve is provided with a plurality of clamping blocks capable of cooperating with the clamping holes.

4. The single layer aluminum cylinder tamper-evident cap of claim 3 wherein, The inner wall of the inner lower sleeve is provided with a lower positioning step abutting against the lower end of the inner upper sleeve, and the outer wall of the inner upper sleeve is provided with an upper positioning step abutting against the upper end of the inner lower sleeve.

5. The single layer aluminum cylinder tamper-evident cap of claim 4 wherein, The inner upper sleeve and the inner lower sleeve are integrally injection molded by two different materials.

6. The single layer aluminum cylinder tamper-evident cap of claim 5 wherein, The inner upper sleeve is made of PET material, and the inner lower sleeve is made of PC material.

7. The single layer aluminum cylinder tamper-evident cap of any one of claims 1-6, wherein, The inner wall of the inner lower sleeve is provided with a plurality of first anti-rotation teeth, and the outer wall of the bottle mouth is provided with a plurality of second anti-rotation teeth capable of cooperating with the first anti-rotation teeth.

8. The single layer aluminum cylinder tamper-evident cap of claim 7 wherein, The lower end of the first anti-rotation tooth is in a sharp structure, and the two sides thereof are provided with first guide inclined surfaces; the upper end of the second anti-rotation tooth is in a sharp structure, and the two sides thereof are provided with second guide inclined surfaces.

9. A container bottle characterized by The single-layer aluminum cylinder anti-pulling bottle cap comprises a bottle body and the single-layer aluminum cylinder anti-pulling bottle cap according to any one of claims 1-8.

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