Cosmetic bottle cap with built-in rubber head dropper

By incorporating a built-in dropper design, the rotating cap drives the extrusion plate to compress the dropper, solving the problems of easy corrosion and damage to the dropper and achieving protection and convenient use of the dropper.

CN223920034UActive Publication Date: 2026-02-17DONGYANG KAIDA PLASTIC IND CO LTD
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Patent Information

Application Number
CN202520697887.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-14
Publication Date
2026-02-17
Estimated Expiration
2035-04-14

AI Technical Summary

Technical Problem

The rubber tips of existing droppers are usually made of rubber, which is easily corroded by serums and is prone to breakage when exposed, affecting normal use, especially when they are easily punctured by sharp objects during transport.

Method used

Design a cosmetic bottle cap with a built-in dropper. Rotating the cap causes a squeezing plate to squeeze the dropper, replacing manual squeezing. The squeezing plate is slidably connected in an arc-shaped guide groove and equipped with a return spring and a limit rod for stable movement. The dropper is located in the mounting cavity, and a scale is provided for easy measurement.

Benefits of technology

It effectively protects the dropper tip, preventing damage and ensuring normal use. It is not easily damaged during transport and is more convenient to use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of cosmetics, and provides a cosmetic bottle cap with a built-in rubber head dropper, which comprises a cap body, the rubber head dropper is fixedly arranged in the cap body, the top end of the cap body is fixedly connected with a fixing cap, an installation cavity is arranged in the fixing cap, and a rubber head of the rubber head dropper is arranged in the installation cavity. Three evenly-distributed extrusion pieces are slidably connected into the mounting cavity, sliding pins are fixedly connected to the tops of the ends, away from each other, of the extrusion pieces, a rotating cap is rotatably connected to the top end of the fixing cap, arc-shaped guide grooves are formed in the positions, corresponding to the sliding pins, of the rotating cap, and the sliding pins are slidably connected into the arc-shaped guide grooves. According to the rubber head dropper, the arc-shaped guide groove extrudes the sliding pin by rotating the rotating cap, so that the extrusion sheet is driven to move towards the rubber head of the rubber head dropper, the function of extruding the rubber head of the rubber head dropper is achieved, manual extrusion of a user is replaced, the rubber head of the rubber head dropper can be better protected, and the rubber head of the rubber head dropper can be prevented from being damaged in the carrying process. And the rubber head is protected, and the possible damage condition is prevented.
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Description

Technical Field

[0001] This utility model relates to the field of cosmetic technology, and in particular to a cosmetic bottle cap with a built-in dropper. Background Technology

[0002] Serums are the finest skincare products, with refined ingredients, powerful effects, and remarkable results. They contain trace elements, collagen, and serum, and their main functions include anti-aging, anti-wrinkle, moisturizing, whitening, and spot removal. Due to their high manufacturing cost and difficulty in storage, serums generally require special bottles for storage, namely serum bottles. When using serums, a small amount is used each time, and to prevent waste, a dropper is usually used to dispense the serum.

[0003] A cosmetic bottle cap with a dropper structure, authorized by publication number "CN221394974U", includes a cosmetic container for holding cosmetics; a cap mechanism for use with the cosmetic container, the cap mechanism including a cap body that matches the cosmetic container, the inner wall of the cap body having an internal thread, and the bottle mouth of the cosmetic container having an external thread that meshes with the internal thread at a position corresponding to the internal thread.

[0004] The application combines a bottle cap with a dropper for convenient dispensing of serum. However, the dropper tip is typically made of rubber. Considering the complex composition of serums, some serum may remain on the user's hands after dispensing, potentially corroding the tip and causing damage. Furthermore, since the tip is exposed, any breakage will render the dropper unusable. Especially during transport, if the tip is punctured by a sharp object, it may break, ultimately affecting the dropper's ability to dispense serum. Utility Model Content

[0005] The purpose of this invention is to address the problem that in existing droppers, the rubber tip is typically made of rubber. Considering the complex composition of serums, some serum inevitably remains on the user's hands after use, which may corrode the rubber tip and cause damage. Furthermore, since the rubber tip is exposed, once damaged, the dropper cannot function properly. Especially during transport, if the rubber tip is punctured by a sharp object, it may break, ultimately affecting the dropper's ability to properly dispense serum.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a cosmetic bottle cap with a built-in dropper, comprising a cap body, a dropper fixedly installed inside the cap body, a fixing cap fixedly connected to the top of the cap body, an installation cavity provided inside the fixing cap, the dropper head located in the installation cavity, three evenly distributed extrusion plates slidably connected inside the installation cavity, each extrusion plate having a sliding pin fixedly connected to its top at a point away from each other, a rotating cap rotatably connected to the top of the fixing cap, and an arc-shaped guide groove provided at each rotating cap corresponding to the sliding pin, the sliding pin being slidably connected inside the arc-shaped guide groove. By rotating the rotating cap, the arc-shaped guide groove extrudes the sliding pin, thereby driving the extrusion plates to move towards the dropper head, realizing the function of extruding the dropper head, replacing manual extrusion by the user, better protecting the dropper head, and protecting the head during carrying to prevent possible breakage.

[0007] In a preferred embodiment, the rotating cap has evenly distributed grooves on its outer periphery, which can increase the contact friction between the rotating cap and the hand, making it easier for the user to rotate the cap.

[0008] In a preferred embodiment, two limiting rods are fixedly connected to the rear end of the extrusion sheet. The limiting rods are slidably connected to the inner wall of the fixing cap. By setting the limiting rods, the movement of the extrusion sheet is guided and limited, making the movement of the extrusion sheet more stable.

[0009] In a preferred embodiment, a return spring is provided at the rear end of the extrusion plate corresponding to the limiting rod. The two ends of the return spring are fixedly connected to the extrusion plate and the fixing cap, respectively. By providing the return spring, the rotating cap can be made to automatically spring back.

[0010] As a preferred embodiment, the inner wall of the cap is provided with internal threads to facilitate connection with the cosmetic bottle.

[0011] As a preferred embodiment, the dropper has a scale engraved on its outer wall, which allows the user to have a more intuitive understanding of the volume of essence drawn.

[0012] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0013] This invention allows the rotating cap to press the arc-shaped guide groove against the sliding pin, thereby moving the extrusion plate towards the dropper tip and extruding the dropper tip. This replaces manual extrusion by the user, providing better protection for the dropper tip and preventing potential damage during transport. Attached Figure Description

[0014] Figure 1 A three-dimensional structural diagram of a cosmetic bottle cap with a built-in dropper provided by this utility model;

[0015] Figure 2 A front structural diagram of a cosmetic bottle cap with a built-in dropper provided by this utility model;

[0016] Figure 3 A cross-sectional view of a cosmetic bottle cap with a built-in dropper provided by this utility model;

[0017] Figure 4 A schematic diagram showing the disassembled structure of a cosmetic bottle cap with a built-in dropper provided by this utility model;

[0018] Figure 5 This utility model provides a cosmetic bottle cap with a built-in dropper. Figure 4 A magnified view of a portion of area A.

[0019] Legend:

[0020] 1. Cover; 2. Fixed cap; 3. Rotating cap; 4. Dropper; 6. Internal thread; 7. Mounting cavity; 8. Extrusion plate; 10. Limiting rod; 11. Return spring; 12. Sliding pin; 13. Arc-shaped guide groove. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-5This utility model provides a technical solution: a cosmetic bottle cap with a built-in dropper, including a cap body 1, a dropper 4 fixedly installed inside the cap body 1, a fixing cap 2 fixedly connected to the top of the cap body 1, an installation cavity 7 inside the fixing cap 2, the dropper head of the dropper 4 located in the installation cavity 7, three evenly distributed extrusion plates 8 slidably connected inside the installation cavity 7, each extrusion plate 8 having a sliding pin 12 fixedly connected to its top at one end away from each other, a rotating cap 3 rotatably connected to the top of the fixing cap 2, and an arc-shaped guide groove 13 corresponding to each sliding pin 12 in the rotating cap 3, the sliding pin 12 slidably connected inside the arc-shaped guide groove 13, by rotating the rotating cap 3, the arc-shaped guide groove 13 extrudes the sliding pin 12, thereby driving the extrusion plates 8 to move towards the dropper head of the dropper 4, realizing the function of extruding the dropper head of the dropper 4, replacing the user's manual extrusion, which can better protect the dropper head of the dropper 4, and can also protect the dropper head during carrying to prevent possible damage.

[0023] like Figure 1-5 As shown, the rotating cap 3 has evenly distributed grooves on its outer periphery, which can increase the contact friction between the rotating cap 3 and the hand, making it easier for the user to rotate the rotating cap 3.

[0024] like Figure 1-5 As shown, two limiting rods 10 are fixedly connected to the rear end of the extrusion sheet 8. The limiting rods 10 are slidably connected to the inner wall of the fixed cap 2. By setting the limiting rods 10, the movement of the extrusion sheet 8 is guided and limited, making the movement of the extrusion sheet 8 more stable.

[0025] like Figure 1-5 As shown, a return spring 11 is provided at the rear end of the extrusion plate 8 corresponding to the limit rod 10. The two ends of the return spring 11 are fixedly connected to the extrusion plate 8 and the fixed cap 2 respectively. By setting the return spring 11, the rotating cap 3 can automatically spring back.

[0026] like Figure 1-5 As shown, the inner wall of the cap 1 is provided with internal threads 6, which facilitates connection with the cosmetic bottle.

[0027] like Figure 1-5 As shown, the dropper 4 has a scale engraved on its outer wall, which allows users to have a more intuitive understanding of the volume of essence drawn.

[0028] Working principle: When drawing the essence, rotating the cap 3 causes the arc-shaped guide groove 13 to squeeze the sliding pin 12, thereby moving the squeezing plate 8 towards the rubber head of the dropper 4, thus squeezing the rubber head of the dropper 4. After releasing the hand, the return spring 11 automatically resets the rubber head, and the rubber head is released. Rotating the cap 3 replaces the user's manual squeezing, which can better protect the rubber head of the dropper 4 and protect the rubber head during carrying to prevent possible damage.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A cosmetic bottle cap with a built-in glue head dropper, characterized by, The utility model relates to a kind of rubber head dropper, including cover (1), the rubber head dropper (4) is fixedly installed in the cover (1), the fixed cap (2) is fixedly connected to the top of the cover (1), the fixed cap (2) is equipped with installation cavity (7) inside, the rubber head of the rubber head dropper (4) is located in installation cavity (7), three evenly distributed extrusion pieces (8) are slidably connected in the installation cavity (7), the extrusion piece (8) is slidably connected with the sliding pin (12) in the top of mutually faraway end, the fixed cap (2) top is rotatably connected with rotating cap (3), the rotating cap (3) is equipped with arc guide slot (13) in the corresponding sliding pin (12) place, the sliding pin (12) is slidably connected in arc guide slot (13) inside.

2. The cosmetic bottle cap with a built-in glue head dropper according to claim 1, characterized in that: The rotating cap (3) is provided with evenly distributed grooves on the outer periphery.

3. The cosmetic bottle cap with a built-in glue head dropper according to claim 1, characterized in that: The extrusion piece (8) is fixedly connected with two limit rods (10) at the rear end, and the limit rods (10) are slidably connected with the inner wall of the fixed cap (2).

4. The cosmetic bottle cap with a built-in glue head dropper according to claim 3, characterized in that: The extrusion piece (8) is provided with a return spring (11) at the rear end corresponding to the limit rod (10), and the two ends of the return spring (11) are fixedly connected with the extrusion piece (8) and the fixed cap (2) respectively.

5. The cosmetic bottle cap with a built-in glue head dropper according to claim 1, characterized in that: The inner wall of the cover (1) is provided with internal threads (6).

6. The cosmetic bottle cap with a built-in glue head dropper according to claim 1, characterized in that: The outer wall of the rubber head dropper (4) is engraved with a scale table.

Citation Information

Patent Citations

  • Cosmetic bottle cap with dropper structure

    CN221394974U