Cosmetic packaging hose equipped with a minimal pump

Abstract

This utility model discloses a cosmetic packaging tube equipped with a micropump, including a bottle, a tube head, a cap, and a micropump assembly. The tube head is fixed to the bottle opening, and its outer circumference has at least three circular protrusions. The inner wall of the cap has an arc-shaped annular groove that matches the circular protrusions, forming a press-fit structure. The micropump assembly is housed inside the tube head and includes a pump body and a pressing head. The top of the pressing head is a sloped surface with an upward angle, and one side has a forward-extending flow guide extension, with a dispensing area formed below. The inside of the pressing head has an annular structure that forms a circular cavity, and a rectangular flow guide opening is formed between the top of the annular structure and the sloped surface of the flow guide extension. This utility model achieves precise liquid flow through a unique pressing head structure, with a compact overall structure, solving the technical problems of micro-volume dispensing and leakage prevention in cosmetics.

Description

Technical Field

[0001] This utility model relates to the technical field of cosmetic packaging containers, and in particular to the technical field of a cosmetic packaging tube equipped with a tiny pump. Background Technology

[0002] Existing cosmetic packaging tubes typically use pump heads with large single-volume outputs (usually exceeding 0.5cc), which cannot meet the demands of high-end cosmetics such as serums and eye creams for extremely small, precise dispensing volumes. Furthermore, traditional pump bodies are loosely structured and bulky, resulting in less refined overall packaging. Additionally, the pump head outlets are often horizontal or downward-sloping, leading to residual liquid residue adhering to the packaging walls or dripping after use, causing contamination and waste. Therefore, there is an urgent need for cosmetic packaging tubes with output precision down to the 0.1cc level, a compact structure, and effective leak-proof design. Utility Model Content

[0003] The purpose of this invention is to solve the problems of large output, loose structure, and easy leakage of existing cosmetic packaging pump heads. It proposes a cosmetic packaging tube equipped with a tiny pump that can achieve an extremely small output of 0.1cc, has a compact structure, and is hygienic and convenient to use.

[0004] To achieve the above objectives, this utility model proposes a cosmetic packaging tube equipped with a miniature pump, comprising a bottle, a tube head fixed to the bottle opening, a bottle cap sleeved over the tube head, and a miniature pump assembly disposed within the tube head; the outer circumferential surface of the tube head is provided with at least three circumferentially distributed circular protrusions; the inner wall of the bottle cap is provided with an inwardly protruding arc-shaped annular groove adapted to the circular protrusions, the circular protrusions engaging with the arc-shaped annular groove; the miniature pump assembly comprises a pump body and a pressing head disposed above the pump body; the top surface of the pressing head is inclined, the main body contour of the pressing head includes a first side and a second side, the first side is semi-circular, the second side has a forward-extending guide extension, and a concave dipping area is formed below the guide extension; the inside of the pressing head is provided with an annular structure, the annular structure forming a circular cavity whose lower end communicates with the pump body; a rectangular cross-section guide opening is formed between the top of the annular structure and the inclined inner wall of the guide extension.

[0005] Preferably, the inclined plane has an upward angle with the horizontal plane. This structure facilitates the backflow of residual liquid. Further, the angle ranges from 5° to 15°. This angle range ensures that residual liquid can naturally flow back under gravity. Even further, the angle is 8°. This angle is a preferred solution balancing the backflow prevention effect with user convenience.

[0006] Preferably, the pump body of the miniature pump assembly includes an elastic element that provides a reset force. This element is a key structure for ensuring the normal operation and reset of the pump head. Further, the elastic element is a wave spring or a plastic spring. Wave springs have a compact structure, while plastic springs offer good corrosion resistance.

[0007] Preferably, the bottom of the miniature pump assembly is connected to a straw that extends to the bottom of the bottle. This structure ensures that the liquid inside the bottle is fully utilized.

[0008] Preferably, the pump body and the pipe head are fixed by a threaded connection or a snap-fit ​​structure. This structure enables a stable installation of the miniature pump assembly within the pipe head, ensuring reliable operation.

[0009] Preferably, the number of circular protrusions is 4 to 6. This range of numbers ensures a stable connection while facilitating manufacturing.

[0010] Preferably, the outer surface of the beveled pressing head is provided with anti-slip texture. This design increases the friction when the finger presses, prevents slippage, and improves the operating feel.

[0011] The beneficial effects of this utility model are: 1. This utility model achieves automatic liquid backflow after use through a unique press head structure design and upward tilt angle, effectively preventing dripping.

[0012] 2. The design of the guide extension and the dipping area provides a clear guide and bearing surface for the use of extremely small amounts of liquid, resulting in a better user experience.

[0013] 3. The overall structure is compact, with the tiny pump assembly built into the pipe head, achieving miniaturization of the packaging.

[0014] 4. The locking structure between the tube head and the bottle cap is simple, reliable, and easy to operate.

[0015] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a cosmetic packaging tube equipped with a tiny pump according to this utility model. Figure 2 This is a three-dimensional structural diagram of the tube head and the micropump assembly of a cosmetic packaging tube equipped with a micropump, according to this utility model. Figure 3 This is a three-dimensional structural diagram of a bottle cap for a cosmetic packaging tube equipped with a tiny pump, according to this utility model. Figure 4 This is a three-dimensional structural schematic diagram of a miniature pump assembly for a cosmetic packaging tube equipped with a miniature pump, according to this utility model. Figure 5 This is a three-dimensional structural diagram of a press head for a cosmetic packaging tube equipped with a tiny pump, according to this utility model.

[0017] In the figure: 1-bottle, 2-tube head, 21-circular protrusion, 3-bottle cap, 31-arc-shaped annular groove, 4-miniature pump assembly, 41-pressing head, 42-pump body, 411-annular structure, 412-flow guide port, 413-flow guide extension, 414-dipping area, 415-circular cavity. Detailed Implementation

[0018] See Figures 1-5 This utility model includes a bottle 1, a tube head 2 fixed to the opening of the bottle 1, a bottle cap 3 sleeved on the tube head 2, and a miniature pump assembly 4 disposed inside the tube head 2; the outer circumferential surface of the tube head 2 is provided with at least three circumferentially distributed circular protrusions 21; the inner wall surface of the bottle cap 3 is provided with an arc-shaped annular groove 31 adapted to the circular protrusions 21, and the circular protrusions 21 and the arc-shaped annular groove 31 constitute an axial locking structure for press-fit and pull-out separation; the miniature pump assembly 4 includes a pump body 42 and a pressing head 41 disposed above the pump body 42. The top surface of the pressing head 41 is inclined. The main body outline of the pressing head 41 includes a first side and a second side. The first side is semi-circular, and the second side has a forward-extending guide extension 413. A recessed dipping area 414 is formed below the guide extension 413. The pressing head 41 has an annular structure 411 inside. The annular structure 411 surrounds a circular cavity 415 whose lower end communicates with the pump body 42. A rectangular guide port 412 is formed between the top of the annular structure 411 and the inclined inner wall of the guide extension 413.

[0019] The working process of this utility model: The present invention relates to a cosmetic packaging tube equipped with a tiny pump, and the working process is described in conjunction with the accompanying drawings.

[0020] like Figure 1 , Figure 2 and Figure 4 As shown, the cosmetic packaging tube of this utility model includes a bottle 1. A tube head 2 is threadedly fixed to the opening of the bottle 1. Six circular protrusions 21 are evenly distributed on the outer circumferential surface of the tube head 2. A miniature pump assembly 4 is disposed inside the tube head 2.

[0021] like Figure 1 and Figure 3 As shown, the bottle cap 3 is directly pressed into the tube head 2. The circular protrusion 21 and the arc-shaped annular groove 31 on the inner wall of the bottle cap 3 interlock to form a connecting structure.

[0022] likeFigure 2 , Figure 4 and Figure 5 As shown, the top profile of the press head 41 is asymmetrical, featuring a flow guide extension 413 and a dipping area 414 below it. The fluid passage inside the press head 41 begins at the lower pump body 42, passes through a circular cavity 415 enclosed by an annular structure 411, and then exits through a rectangular flow guide port 412 located below the inclined surface of the flow guide extension 413. The inclined surface forms an upward angle of 8° with the horizontal plane.

[0023] During operation, the liquid is pumped out and guided along the aforementioned flow channel to the pick-up area 414. After use, any residual liquid can automatically flow back. A suction tube extending to the bottom of the bottle is connected to the bottom of the miniature pump assembly 4. A wave spring can be installed inside the pump body 42 to provide a restoring force. This miniature pump assembly is precisely designed to achieve a single output of approximately 0.1 cc of extremely small amounts of liquid.

[0024] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A cosmetic packaging tube equipped with a miniature pump, comprising a bottle (1), a tube head (2) fixed to the opening of the bottle (1), a bottle cap (3) sleeved on the tube head (2), and a miniature pump assembly (4) disposed within the tube head (2), characterized in that: At least three circumferentially distributed circular protrusions (21) are provided on the outer circumferential surface of the tube head (2). The inner wall of the bottle cap (3) protrudes inward to form an arc-shaped annular groove (31) that matches the circular protrusion (21). The circular protrusion (21) and the arc-shaped annular groove (31) constitute an axial locking structure that allows for press-in engagement and pull-out separation. The miniature pump assembly (4) includes a pump body (42) and a pressing head (41) disposed above the pump body (42); the top surface of the pressing head (41) is a slope, and the main body outline of the pressing head (41) includes a first side and a second side, the first side is semi-circular, and the second side has a forward-extending guide extension (413), and an inwardly recessed dipping area (414) is formed below the guide extension (413). The pressing head (41) has an annular structure (411) inside, which encloses a circular cavity (415) whose lower end is connected to the pump body (42); a flow guide (412) with a rectangular cross-section is formed between the top of the annular structure (411) and the inclined inner wall of the flow guide extension (413).

2. The cosmetic packaging tube according to claim 1, wherein The inclined plane has an upward angle with the horizontal plane.

3. The cosmetic packaging tube according to claim 2, wherein The tilt angle ranges from 5° to 15°.

4. The cosmetic packaging tube according to claim 3, wherein The tilt angle is 8°.

5. The cosmetic packaging tube according to claim 1, characterized in that, The pump body (42) of the miniature pump assembly (4) is provided with an elastic element inside for providing a restoring force.

6. The cosmetic packaging tube according to claim 5, wherein The elastic element is a wave spring or a plastic spring.

7. The cosmetic packaging tube according to claim 1, wherein The bottom of the miniature pump assembly (4) is connected to a straw that extends to the bottom of the bottle.

8. The cosmetic packaging tube of claim 1, wherein, The pump body (42) and the pipe head (2) are fixed by threaded connection or snap-fit ​​structure.

9. The cosmetic packaging tube of claim 1, wherein, The number of the circular protrusions (21) is 4 to 6.

10. The cosmetic packaging tube according to claim 1, characterized in that, The outer surface of the bevel of the pressing head (41) is provided with anti-slip texture.

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