Dropper bottle structure

Abstract

A dropper bottle structure. A dropper bottle comprises a bottle body (20) and a base (30), wherein the bottle body (20) and the base (30) respectively have corresponding fitting structures (24, 31), and the fitting structures (24, 31) are tightly fitted to improve the overall structural strength of the dropper bottle, thereby preventing leakage of liquid in the bottle without additional soft waterproof members or processing. The dropper structure is manufactured in an injection molding mode, thereby effectively reducing manufacturing costs of the dropper bottle.

Description

Dropper bottle structure

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on March 5, 2024, with application number 202410245490.5 and invention name “Dripping Bottle Structure”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a dropper bottle structure for containing liquid cosmetics, skin care products or medicines, and in particular to a dropper bottle structure that can reduce costs and prevent the liquid in the bottle from overflowing or seeping. Background Art

[0003] The traditional method for manufacturing dropper bottles is primarily plastic injection-blow molding. This two-step process involves injecting molten plastic into an injection molding machine's barrel, where it is continuously heated and pressurized to form a preform. The preform is then placed in a blow mold and heated through a blow molding machine, where it is then blown into a hollow bottle using high-pressure air. To improve production efficiency, reduce energy consumption, and conserve space, a one-step process has been developed, combining preform molding and stretch-blow molding within the same machine. This has become the mainstream method in the current market. However, this one-step process requires expensive equipment and molds, significantly increasing production costs and hindering the competitiveness of dropper bottles.

[0004] To address these issues, some manufacturers have switched to injection molding, combining multiple parts into a droplet-shaped bottle structure through screwing, gluing, or ultrasonic welding. Besides the inconvenience of the manufacturing process, the assembly of the various parts can result in insufficient tightness, potentially causing the contents to spill or evaporate. Therefore, soft waterproof components are often added, further increasing production costs.

[0005] Summary of the Invention

[0006] The technical problem to be solved by the present application is to provide a dropper bottle structure that is suitable for an injection molding process and has the advantages of easy assembly and low manufacturing cost.

[0007] The present application provides a dropper bottle structure, comprising: a bottle body, wherein the two sides of the bottle body respectively have a first bottle mouth and a second bottle mouth, and the inner side wall of the bottle body near the second bottle mouth has a first coupling structure; and a base, which is connected to the second bottle mouth and is provided with a second coupling structure. The second coupling structure and the first coupling structure respectively have complementary concave and convex annular limiting structures so as to be tightly fitted with each other.

[0008] In some embodiments, the first coupling structure has a plurality of annular grooves.

[0009] In some embodiments, the first coupling structure has an abutting top.

[0010] In some embodiments, the second coupling structure is an annular body vertically disposed on an inner surface of the base, and the second coupling structure has an outer ring portion and a plurality of annular flanges.

[0011] In some embodiments, the second coupling structure is an annular body vertically arranged on an inner surface of the base, and the second coupling structure has an outer ring portion and multiple flanges. The outer ring portion rests on the top portion, and the grooves match the contours of the flanges.

[0012] In some embodiments, the inner surface of the base is a concave structure.

[0013] In some embodiments, the inner surface has a plurality of positioning elements and a central portion. The positioning elements are perpendicularly disposed on the inner surface and are spaced apart from each other and arranged around the central portion.

[0014] In some embodiments, the base and the positioning elements are integrally formed.

[0015] In some embodiments, the bottle body and the base are made of polyethylene, polypropylene or a mixture thereof.

[0016] The details of other functions and embodiments of the present application are described below with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] FIG1 is an exploded view of the components of the dropper bottle structure of the present application;

[0019] FIG2 is a partial cross-sectional enlarged view of the combination of the bottle body and the base of the dropper bottle structure of the present application;

[0020] FIG3 is a top view of the inner surface of the base of the dropper bottle structure according to an embodiment of the present application;

[0021] FIG4 is a top view of the inner surface of the base of the dropper bottle structure according to another embodiment of the present application.

[0022] Explanation of symbols

[0023] 10: Dropper 11: Squeeze head

[0024] 12: Cover 13: Pipe body

[0025] 20: Bottle body 21: Joint

[0026] 22: First bottle opening 23: Second bottle opening

[0027] 24: First combination structure 241: Abutting the top

[0028] 242: Annular groove 30: Base

[0029] 31: Second coupling structure 311: Outer ring

[0030] 312: Annular flange 32: Positioning piece

[0031] 33: Central Department DETAILED DESCRIPTION

[0032] The positional relationships described in the following embodiments include up, down, left, and right. Unless otherwise specified, they are based on the directions of the components shown in the drawings.

[0033] Referring to Figures 1 and 2 , the dropper bottle structure of the present application is illustrated. The dropper bottle structure includes a dropper 10, a bottle body 20, and a base 30. The bottle body 20 has a first bottle opening 22 and a second bottle opening 23 on either side thereof. The dropper 10 is connected to the first bottle opening 22, and the base 30 is connected to the second bottle opening 23. The dropper bottle structure of the present application is used to effectively contain liquid contents, such as, but not limited to, cosmetics, skin care products, or medicines.

[0034] The dropper 10 comprises an extrusion head 11 , a cover 12 and a tube 13 . The bottleneck of the first bottle opening 22 is a joint 21 , which is combined with the cover 12 . In the embodiment of the present application, the joint 21 is screwed into the cover 12 .

[0035] The inner sidewall of the bottle body 20 near the second bottle opening 23 has a first coupling structure 24. The base 30 has an annular body perpendicularly disposed on an inner surface of the base 30. The annular body serves as a second coupling structure 31 of the base 30. The first coupling structure 24 and the second coupling structure 31 each have complementary concave and convex annular retaining structures that fit tightly together, tightly coupling the bottle body 20 to the base 30 and preventing leakage or evaporation of the liquid contents contained in the dropper bottle structure. Furthermore, in this embodiment, an inner surface of the base 30 has a concave structure, allowing the liquid contents to converge into a central area of ​​the inner surface, making it easier for the user to absorb the liquid contents.

[0036] In the embodiment of the present application, the second coupling structure 31 has an outer ring portion 311 and a plurality of annular flanges 312 on the outer side wall of the annular body, and the first coupling structure 24 has a top portion 241 and a plurality of annular grooves 242, wherein the outer ring portion 311 abuts against the top portion 241, so that the liquid contents are not easily flowed into the gap between the bottle body 20 and the base 30. The annular flanges 312 and the annular grooves 242 have matching contours as annular limiting structures, which can effectively and tightly engage to prevent the liquid contents from overflowing. The top portion 241 and the outer ring portion 311 can prevent the liquid from generating bubbles at the junction of the bottle body 20 and the base 30. The number of the aforementioned annular flanges 312 and annular grooves 242 in this embodiment is two, but can also be changed to a single one or more than three.

[0037] Next, please refer to Figure 3, which illustrates an embodiment of a base 30 for a dropper bottle structure of the present application. An inner surface of the base 30 has a plurality of positioning members 32 and a central portion 33. There are three positioning members 32, which are perpendicularly disposed on the inner surface and spaced apart around the central portion 33. These members 32 can confine the tube 13 to the central portion 33, preventing the tube 13 from excessively deviating and causing the end of the tube 13 located within the bottle 20 to move excessively away from the base 30. This ensures that no residual liquid remains unsuckled, improving the user experience. Please refer to Figure 4, which illustrates another embodiment of the base 30 for a dropper bottle structure of the present application. The number of positioning members 32 can be four, and the user can adjust the number based on implementation needs to achieve the same effect.

[0038] As described above, the dropper bottle structure of the present application features a tightly fitting annular retaining structure that prevents spillage of liquid contents. It eliminates the need for screwing, gluing, or ultrasonic welding, and eliminates the need for additional soft waterproof components. Once connected to the lid 12, the dropper bottle structure of the present application also prevents loss of liquid contents due to evaporation. Furthermore, the base 30 and the positioning members 32 are integrally formed, and the bottle body 20 and base 30 are injection molded from materials including, but not limited to, polyethylene, polypropylene, or mixtures thereof.

[0039] Compared with the existing plastic injection blow molding method, the production cost of this dropper bottle structure does not require expensive equipment and molds, which can reduce manufacturing costs. It also has the characteristics of fast production and consistent finished product quality, providing an efficient liquid storage and usage experience to meet market demand.

[0040] The embodiments and / or implementation methods described above are only used to illustrate the preferred embodiments and / or implementation methods for realizing the technology of the present application, and do not impose any form of limitation on the implementation methods of the technology of the present application. Any person skilled in the art may make slight changes or modifications to other equivalent embodiments without departing from the scope of the technical means disclosed in the content of the present application, but they should still be regarded as technologies or embodiments that are essentially the same as those of the present application.

Claims

1. A dropper bottle structure, wherein: The dropper bottle structure comprises: A bottle body, wherein two sides of the bottle body respectively have a first bottle opening and a second bottle opening, and an inner side wall of the bottle body near the second bottle opening has a first coupling structure; and A base is connected to the second bottle mouth and is provided with a second combining structure. The second combining structure and the first combining structure respectively have complementary concave and convex annular limiting structures so as to be tightly matched with each other.

2. The dropper bottle structure according to claim 1, wherein: The first coupling structure has a plurality of annular grooves.

3. The dropper bottle structure according to claim 2, wherein: The first combining structure has an abutting top portion.

4. The dropper bottle structure according to claim 2, wherein: The second combining structure is an annular body vertically arranged on an inner surface of the base, and the second combining structure has a plurality of annular flanges.

5. The dropper bottle structure according to claim 3, wherein: The second coupling structure is an annular body vertically arranged on an inner surface of the base. The second coupling structure has an outer ring portion and multiple annular flanges. The outer ring portion rests on the top portion, and the annular grooves match the contours of the annular flanges.

6. The dropper bottle structure according to claim 1, wherein: The inner surface of the base is a concave structure.

7. The dropper bottle structure according to claim 6, wherein: The inner surface is provided with a plurality of positioning members and a central portion. The positioning members are vertically arranged on the inner surface and are spaced apart from each other and arranged around the central portion.

8. The dropper bottle structure according to claim 7, wherein: The bottle body and the base are made by injection molding.

9. The dropper bottle structure according to claim 8, wherein: The base and the positioning pieces are integrally formed by injection molding.

10. The dropper bottle structure according to any one of claims 1 to 9, wherein: The bottle body and the base are made of polyethylene, polypropylene or a mixture thereof.

Images