Magnesium-aluminum alloy bayonet based on composite oxidation technology

By using a magnesium-aluminum alloy bayonet based on composite oxidation technology, a double sealing structure for the inner and outer caps, and a limiting ring design, the problem of leakage caused by loose sealing caps during the carrying of cosmetic bottles is solved, achieving stable sealing and convenient operation of cosmetics.

CN224159692UActive Publication Date: 2026-04-24NINGBO Z&Z NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO Z&Z NEW MATERIAL CO LTD
Filing Date
2025-06-03
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

When carrying cosmetic bottles, the threaded connection of the sealing cap and the snap-fit ​​can easily loosen, leading to cosmetic leakage.

Method used

The design employs a magnesium-aluminum alloy bayonet based on composite oxidation technology, featuring a double-sealing structure for both the inner and outer covers. Combined with a limiting ring and a compression assembly, this ensures that the outer cover cannot loosen after threaded connection. Loosening is prevented through the cooperation of the limiting ring and the locking block.

Benefits of technology

It improves the sealing performance of cosmetic bottles, prevents cosmetic leakage and deterioration, and ensures the stability of the seal and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a magnesium-aluminum alloy bayonet based on a composite oxidation technology, belongs to the technical field of cosmetic packaging, and aims to solve the problem that cosmetics leak due to the fact that a traditional threaded bayonet is easy to loosen. The bayonet is composed of a cosmetic bottle body, a threaded bayonet pipe and a double-layer sealing cover, a limiting ring is arranged on the surface of the threaded bayonet pipe, the sealing cover comprises an inner cover and an outer cover, the inner cover is connected with the threaded bayonet pipe through threads, and two limiting assemblies and two squeezing assemblies are arranged in the outer cover. The limiting assembly comprises a clamping block, a clamping spring and a first groove, the bottom end of the clamping block is an inclined face, the limiting ring extrudes the inclined face of the clamping block to enable the clamping block to retract when the outer cover is screwed, the clamping block resets under the action of the spring after crossing the limiting ring to form a limiting gap, and the outer cover is prevented from rotating reversely and loosening. The extrusion assembly comprises a convex pressing ring, an extrusion rod and a reset spring. During pressing, the extrusion rod pushes the clamping block to retract to relieve limiting. The bayonet effectively prevents sealing failure caused by vibration or friction through the composite design of a limiting structure and thread sealing.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, and in particular to magnesium-aluminum alloy bayonet based on composite oxidation technology. Background Technology

[0002] As living standards continue to improve, people's demand for cosmetics is also increasing. Along with this, various cosmetic packaging bottles have emerged. When traveling, people usually carry cosmetic travel bottles to carry liquid cosmetics. These travel bottles are equipped with a sealing clip, and to ensure the aesthetics of the clip, it is usually made of magnesium-aluminum alloy.

[0003] Most bottle caps are sealed with threads, but cosmetic bottles need to be carried in bags or pockets. The threaded connection between the cap and the bottle cap can easily loosen during transport, causing cosmetics to leak and making them inconvenient to use. Utility Model Content

[0004] The purpose of this utility model is to solve the problem that in the existing technology, when cosmetic bottles are actually used and carried in bags or pockets, the threaded connection of the sealing cap and the buckle is prone to loosening during carrying, which leads to leakage of cosmetics. The proposed invention is a magnesium-aluminum alloy buckle based on composite oxidation technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A magnesium-aluminum alloy bayonet based on composite oxidation technology includes a cosmetic bottle body, the top of which is fixedly connected to a threaded bayonet tube, and the cosmetic bottle body and the threaded bayonet tube are integrally formed.

[0007] A sealing cap, comprising an inner cap and an outer cap, wherein the inner cap is fixed inside the outer cap for sealing the threaded bayonet tube, and the inner cap is threadedly connected to the surface of the threaded bayonet tube;

[0008] The threaded bayonet tube has a limiting ring fixed on its surface, and the outer cover has a matching groove that matches the limiting ring. The outer cover has at least two sets of limiting components, which are used to fix the sealing cover to the surface of the threaded bayonet tube.

[0009] Furthermore, to facilitate unscrewing the sealing cap when needed, a set of compression components is provided inside the outer cap. The compression components are used to release the positioning of the sealing cap by the two sets of limiting components.

[0010] In one possible design, each set of the limiting components includes a first groove formed inside the outer cover, a locking block sliding in the first groove, a locking spring fixed to the side end of the locking block, and the side end of the locking spring fixed in the first groove.

[0011] When the card block extends into the matching groove, it forms a limit gap with the outer cover. The limit ring is accommodated in the limit gap and can limit the outer cover, so that the outer cover cannot continue to rotate with threads, effectively preventing the outer cover from becoming loose.

[0012] In one possible design, the bottom ends of both blocks are inclined surfaces, and the limiting rings are in compression contact with the inclined surfaces of the two blocks respectively.

[0013] When the two blocks move downwards, the limiting ring presses the inclined surfaces of the two blocks, causing them to enter the first groove. This allows the blocks to automatically move to the lower side of the limiting ring and automatically form a limiting gap in conjunction with the elasticity of the locking spring.

[0014] In one possible design, the extrusion assembly includes a second groove formed at the top of the outer cover, a convex pressing ring slidingly within the second groove, a receiving groove formed within the convex pressing ring, a return spring fixed within the receiving groove, the return spring fixed within the second groove, two extrusion rods fixed at the bottom end of the convex pressing ring, extrusion grooves formed within both of the two clamping blocks, the two extrusion rods respectively moving downwards through the two extrusion grooves, and the two extrusion rods respectively making extrusion contact with the inclined surfaces of the two extrusion grooves;

[0015] The convex pressing ring is located at the top of the outer cover. Pressing the convex pressing ring can squeeze the inclined surfaces of the two pressing grooves through the two pressing rods, so that the two locking blocks are squeezed into the first groove, making it easy to remove the outer cover.

[0016] In one possible design, a sealing gasket is fixed to the bottom end of the inner cover, and the sealing gasket and the top end of the limiting ring are in compression contact.

[0017] In one possible design, the surface of the outer cover is uniformly covered with anti-slip textures.

[0018] In this application, when in use, twisting the outer cover causes the inner cover to rotate on the threaded bayonet tube, thus sealing the threaded bayonet tube with the inner cover. At the same time, it causes the locking blocks to move downward. When the locking blocks move downward, the inclined surfaces at the bottom of the two locking blocks are squeezed by the limiting ring, causing the locking blocks to enter the first groove. When the bottom of the inner cover contacts the top of the limiting ring, the position of the locking blocks moves to the lower side of the limiting ring. After the locking blocks are no longer squeezed, they are pushed by the locking spring, and the two locking blocks move towards each other. A limiting gap is formed between the two locking blocks and the outer cover. The limiting ring is positioned within the limiting gap, thus ensuring that the outer cover cannot be removed by directly twisting it. This prevents the outer cover from loosening due to friction and ensures the sealing effect on the threaded bayonet tube.

[0019] When the outer cover needs to be removed, press the convex pressing ring to move the two extrusion rods downward. The two extrusion rods press the inclined surfaces of the two extrusion grooves respectively, and the two extrusion grooves are pressed back into the two first grooves. At this time, the outer cover can be removed by twisting it. The operation is simple and does not affect the normal use of the outer cover.

[0020] Beneficial effects: In this utility model, the magnesium-aluminum alloy bayonet based on composite oxidation technology, through the double sealing structure of the inner and outer caps, and the squeezing contact between the sealing gasket fixed at the bottom of the inner cap and the top of the limiting ring, greatly improves the sealing performance of the cosmetic bottle and effectively prevents cosmetic leakage and deterioration.

[0021] In this utility model, the magnesium-aluminum alloy bayonet based on composite oxidation technology has a limiting component that allows the limiting ring to be housed in the limiting gap after the outer cover is connected to the threaded bayonet tube, thereby limiting the outer cover and preventing it from loosening when frequently opened and closed or subjected to bumps or collisions, thus ensuring the stability of the seal.

[0022] In this invention, the design of the extrusion assembly allows the user to simply press the convex pressing ring when the sealing cap needs to be unscrewed. This allows the extrusion rod to press the locking block, causing it to enter the first groove, thus releasing the limit and making it easy to remove the outer cap. The operation is simple and effortless. Attached Figure Description

[0023] Figure 1 This is a front perspective view of the magnesium-aluminum alloy bayonet based on composite oxidation technology proposed in this utility model;

[0024] Figure 2 This is a partial exploded view of the magnesium-aluminum alloy bayonet based on composite oxidation technology proposed in this utility model;

[0025] Figure 3 This is a partial perspective view of the magnesium-aluminum alloy bayonet based on composite oxidation technology proposed in this utility model;

[0026] Figure 4This is a partial cross-sectional view of the magnesium-aluminum alloy bayonet based on composite oxidation technology proposed in this utility model.

[0027] In the diagram: 1. Cosmetic bottle body; 2. Threaded bayonet tube; 3. Limiting ring; 4. Outer cap; 5. Inner cap; 6. Sealing gasket; 7. Locking block; 8. First groove; 9. Locking spring; 10. Extrusion groove; 11. Extrusion rod; 12. Second groove; 13. Convex pressing ring; 14. Receiving groove; 15. Return spring; 16. Matching groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] Example 1: Refer to Figures 1-4 The device includes a cosmetic bottle body 1, a sealing cap, and a threaded snap-fit ​​tube 2. The top of the cosmetic bottle body 1 is fixedly connected to the threaded snap-fit ​​tube 2, and the cosmetic bottle body 1 and the threaded snap-fit ​​tube 2 are integrally formed. This integrally formed structure enhances the overall strength and sealing performance of the cosmetic bottle.

[0030] The sealing cover includes an inner cover 5 and an outer cover 4. The inner cover 5 is fixed inside the outer cover 4 and is used to seal the threaded bayonet tube 2. The inner cover 5 is threadedly connected to the surface of the threaded bayonet tube 2.

[0031] A limiting ring 3 is fixed to the surface of the threaded bayonet tube 2, and a matching groove 16 matching the limiting ring 3 is opened inside the outer cover 4. When the outer cover 4 is threadedly connected to the threaded bayonet tube 2, the limiting ring 3 will enter the matching groove 16;

[0032] The outer cover 4 is provided with at least two sets of limiting components. Each set of limiting components includes a first groove 8 opened in the outer cover 4. A locking block 7 slides in the first groove 8. A locking spring 9 is fixed to the side end of the locking block 7. The side end of the locking spring 9 is fixed in the first groove 8. The contact surface shape of the locking block 7 can be: 1. Arc-shaped contact surface: The bottom end of the locking block can be set as a continuous arc-shaped curved surface (radius of curvature R=2-5mm) to form rolling contact with the limiting ring 3 and reduce frictional resistance; 2. Stepped contact surface: The bottom end of the locking block is provided with 2-3 stepped protrusions (each step height 0.5-1mm) to improve the anti-loosening stability through multi-level limiting; 3. Serrated contact surface: 45° staggered serrations (tooth depth 0.2-0.5mm) are provided on the inclined surface to enhance the biting effect with the limiting ring.

[0033] When the locking block 7 extends into the matching groove 16, it forms a limiting gap with the outer cover 4. The limiting ring 3 is accommodated in the limiting gap and can limit the outer cover 4, so that the outer cover 4 cannot continue to rotate with threads, effectively preventing the outer cover 4 from becoming loose.

[0034] Both locking blocks 7 have inclined surfaces at their bottom ends, and the limiting ring 3 presses against the inclined surfaces of the two locking blocks 7 respectively. When the two locking blocks 7 move downward, the limiting ring 3 presses against the inclined surfaces of the two locking blocks 7, causing the two locking blocks 7 to enter the first groove 8, which facilitates the locking blocks 7 to automatically move to the lower side of the limiting ring 3 and automatically form a limiting gap with the elasticity of the locking spring 9;

[0035] The outer cover 4 is provided with a set of extrusion components. The extrusion components include a second groove 12 opened at the top of the outer cover 4. A convex pressing ring 13 slides in the second groove 12. A receiving groove 14 is opened in the convex pressing ring 13. A return spring 15 is fixed in the receiving groove 14. The return spring 15 is fixed in the second groove 12. The snap-fit ​​spring 9 and the return spring 15 are made of stainless steel with a wire diameter range of 0.5-1.5mm, an outer diameter of 5-10mm, a free length of 10-30mm, and an elastic coefficient controlled at 20-50N / m, taking into account both rebound force and durability.

[0036] Two extrusion rods 11 are fixed at the bottom of the convex pressing ring 13. Extrusion grooves 10 are opened in both of the two clamping blocks 7. The two extrusion rods 11 move downward and penetrate into the two extrusion grooves 10 respectively. The two extrusion rods 11 are in extrusion contact with the inclined surfaces of the two extrusion grooves 10 respectively.

[0037] The convex pressing ring 13 is located at the top of the outer cover 4. Pressing the convex pressing ring 13 can squeeze the inclined surfaces of the two pressing grooves 10 through the two pressing rods 11, so that the two locking blocks 7 are squeezed into the first groove 8, making it easy to remove the outer cover 4.

[0038] This application can be for bayonet made of magnesium-aluminum alloy based on composite oxidation technology, or it can be used in other fields applicable to this application.

[0039] Example 2: Refer to Figures 1-4 An improvement based on Example 1: A magnesium-aluminum alloy bayonet based on composite oxidation technology is used in the field of cosmetic packaging technology. A sealing gasket 6 is fixed at the bottom of the inner cover 5. The sealing gasket 6 and the top of the limiting ring 3 are pressed together, which further enhances the sealing effect.

[0040] The surface of the outer cover 4 is uniformly covered with anti-slip textures, making it easy for users to twist the outer cover 4.

[0041] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0042] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A magnesium-aluminum alloy bayonet based on composite oxidation technology, characterized in that, include: The cosmetic bottle body (1) has a threaded bayonet tube (2) fixedly connected to its top end, and the cosmetic bottle body (1) and the threaded bayonet tube (2) are integrally formed. The sealing cover includes an inner cover (5) and an outer cover (4). The inner cover (5) is fixed inside the outer cover (4) to seal the threaded bayonet tube (2). The inner cover (5) is threaded to the surface of the threaded bayonet tube (2). Among them, the surface of the threaded bayonet tube (2) is fixed with a limiting ring (3), and the outer cover (4) is provided with a matching groove (16) that matches the limiting ring (3). The outer cover (4) is provided with at least two sets of limiting components, which are used to fix the sealing cover to the surface of the threaded bayonet tube (2). Furthermore, in order to facilitate unscrewing the sealing cap when needed, a set of squeezing components is provided inside the outer cover (4). The squeezing components are used to release the two sets of limiting components from positioning the sealing cap.

2. The magnesium-aluminum alloy bayonet based on composite oxidation technology according to claim 1, characterized in that, Each of the limiting components includes a first groove (8) opened in the outer cover (4), a locking block (7) sliding in the first groove (8), and a locking spring (9) fixed to the side end of the locking block (7), the side end of the locking spring (9) being fixed in the first groove (8). When the card block (7) extends into the matching groove (16), it forms a limit gap with the outer cover (4). The limit ring (3) is accommodated in the limit gap and can limit the outer cover (4), so that the outer cover (4) cannot continue to rotate with threads, effectively preventing the outer cover (4) from becoming loose.

3. The magnesium-aluminum alloy bayonet based on composite oxidation technology according to claim 2, characterized in that, The bottom ends of the two locking blocks (7) are both inclined surfaces, and the limiting ring (3) is pressed into contact with the inclined surfaces of the two locking blocks (7) respectively; When the two locking blocks (7) move downward, the inclined surfaces of the two locking blocks (7) are squeezed by the limiting ring (3), so that the two locking blocks (7) enter the first groove (8), which facilitates the locking blocks (7) to automatically move to the lower side of the limiting ring (3) and automatically form a limiting gap with the elasticity of the locking spring (9).

4. The magnesium-aluminum alloy bayonet based on composite oxidation technology according to claim 2, characterized in that, The extrusion assembly includes a second groove (12) opened at the top of the outer cover (4), a convex pressing ring (13) sliding in the second groove (12), a receiving groove (14) opened in the convex pressing ring (13), a return spring (15) fixed in the receiving groove (14), the return spring (15) fixed in the second groove (12), two extrusion rods (11) fixed at the bottom end of the convex pressing ring (13), and extrusion grooves (10) opened in both of the two clamping blocks (7). The two extrusion rods (11) move downward and penetrate into the two extrusion grooves (10), and the two extrusion rods (11) respectively press and contact the inclined surfaces of the two extrusion grooves (10). The convex pressing ring (13) is located at the top of the outer cover (4). Pressing the convex pressing ring (13) can squeeze the inclined surfaces of the two pressing grooves (10) through the two pressing rods (11), so that the two locking blocks (7) are squeezed into the first groove (8), making it easy to remove the outer cover (4).

5. The magnesium-aluminum alloy bayonet based on composite oxidation technology according to claim 4, characterized in that, A sealing gasket (6) is fixed at the bottom of the inner cover (5), and the top of the sealing gasket (6) and the limiting ring (3) are pressed together.

6. The magnesium-aluminum alloy bayonet based on composite oxidation technology according to claim 1, characterized in that, The surface of the outer cover (4) is uniformly fixed with anti-slip texture.