Cosmetic soft tube with a reduced structure

Abstract

The utility model discloses a kind of cosmetic hoses of simplified structure, including pipe body, pipe cover and the inner liner tube being arranged in the inside of pipe body, one end of the inner liner tube is threadedly connected with pipe cover: the sealed cavity for backflow is formed between the pipe body and inner liner tube, the one side of the pipe body inner wall is fixedly equipped with buffer disc, the one end of the buffer disc is fixedly equipped with compression spring, the utility model is guided to export by the flow guide groove of the inner liner tube setting, can guide cosmetic uniform flow, avoid remaining in the inner wall of hose, maximize utilization product, the cooperation of elastic diaphragm and compression spring, make pressure difference in pipe, ensure that pipe bottom cosmetic can also be squeezed out completely, reduce waste;One-way valve only allows cosmetic to flow out, prevent air and external pollutants from pouring back, ensure the sanitary property and quality stability of cosmetic in pipe, sealed cavity effectively isolates internal and external environment, further improve the sealing performance of hose.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging technology, and in particular to a simplified cosmetic tube that can improve the efficiency of cosmetic use and sealing performance. Background Technology

[0002] Cosmetic tubes are a common type of packaging container, primarily used for storing and dispensing creams, gels, or lotions. Their main characteristics are softness, ease of squeezing, and good sealing properties, making them widely used in the packaging of skincare products, facial cleansers, and other similar products.

[0003] Currently, traditional cosmetic tubes generally have the following drawbacks:

[0004] 1. Insufficient sealing performance makes cosmetics susceptible to external contamination;

[0005] 2. Low extrusion efficiency, cosmetics are prone to remain on the tube wall.

[0006] It should be noted that the above content falls within the scope of the technical knowledge of the utility model owner and does not necessarily constitute prior art. Utility Model Content

[0007] To address the aforementioned problems, the purpose of this invention is to provide a cosmetic tube with a simplified structure.

[0008] To achieve the above objectives, this utility model proposes a simplified cosmetic tube, comprising a tube body, a tube cap, and an inner liner tube disposed inside the tube body, wherein one end of the inner liner tube is threadedly connected to the tube cap.

[0009] A sealed cavity for reflux is formed between the tube body and the inner liner tube. A buffer plate is fixedly provided on one side of the inner wall of the tube body. A compression spring is fixedly provided at one end of the buffer plate. An elastic diaphragm is fixedly provided at one end of the compression spring.

[0010] In one example, the pipe cap is equipped with a one-way valve.

[0011] In one example, the inner wall of the liner tube is provided with multiple evenly distributed guide grooves.

[0012] In one example, the sealed cavity is provided with a negative pressure regulating hole.

[0013] In one example, the outer wall of the tube is provided with scale lines.

[0014] The simplified cosmetic tube proposed in this utility model can bring the following beneficial effects:

[0015] This invention utilizes a guide channel in the inner liner tube to guide cosmetics to flow evenly to the outlet, preventing residue on the inner wall of the tube and maximizing product utilization. The combination of the elastic diaphragm and the compression spring creates a pressure difference inside the tube, ensuring that cosmetics at the bottom of the tube are completely squeezed out, reducing waste. The one-way valve only allows cosmetics to flow out, preventing backflow of air and external pollutants, ensuring the hygiene and quality stability of the cosmetics inside the tube. The sealed cavity effectively isolates the internal and external environments, further improving the sealing performance of the tube. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the inner lining tube of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the tube body of this utility model;

[0020] Figure 4 This is a schematic diagram of the cross-sectional structure of the tube body of this utility model.

[0021] In the diagram: 1. Pipe body; 2. Pipe cap; 3. Inner liner; 4. Sealing cavity; 5. Elastic diaphragm; 6. Compression spring; 7. One-way valve; 8. Guide groove; 9. Negative pressure adjustment hole; 10. Scale line; 11. Buffer plate. Detailed Implementation

[0022] To more clearly illustrate the overall concept of this utility model, a detailed description is provided below with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.

[0027] like Figures 1-4 As shown, an embodiment of this utility model proposes a simplified cosmetic tube, including a tube body 1, a tube cap 2, and an inner liner tube 3 disposed inside the tube body 1, wherein one end of the inner liner tube 3 is threadedly connected to the tube cap 2.

[0028] A sealed cavity 4 for reflux is formed between the tube body 1 and the inner liner tube 3. A buffer plate 11 is fixedly provided on one side of the inner wall of the tube body 1. A compression spring 6 is fixedly provided at one end of the buffer plate 11. An elastic diaphragm 5 is fixedly provided at one end of the compression spring 6.

[0029] Specifically, a one-way valve 7 is provided on the pipe cover 2.

[0030] Specifically, the inner wall of the inner liner tube 3 is provided with multiple evenly distributed guide grooves 8.

[0031] Specifically, the sealed cavity 4 is provided with a negative pressure adjustment hole 9.

[0032] Specifically, the outer wall of the tube 1 is provided with scale lines 10.

[0033] Working Principle: Cosmetics are injected into the soft tube through the inner liner tube 3, filling the entire internal space of the inner liner tube 3. One end of the inner liner tube 3 is fixed to the tube cap 2 by a threaded connection, ensuring a tight seal. A sealed cavity 4 is formed between the inner liner tube 3 and the tube body 1. This cavity maintains internal air pressure balance through the negative pressure regulating hole 9, preventing the tube from expanding or contracting due to temperature changes. The user can check the remaining amount by observing the scale line 10 on the outer wall of the tube body 1. When the user squeezes the tube body 1, the tube body 1 deforms under external force, increasing the internal pressure. The pressure acts on the elastic diaphragm 5, which is transmitted to the inner liner tube 3 through the compression spring 6. The elastic diaphragm 5 and the compression spring 6 work together to further balance the internal pressure, ensuring that the cosmetics flow evenly from the inner liner tube 3. The guide groove 8 on the inner wall of the inner liner tube 3 guides the cosmetics to the one-way valve 7. The spiral design of the guide groove 8 causes the cosmetics to flow in a rotating manner. The system minimizes resistance and ensures a fast and smooth flow to the outlet. When the cosmetics in the inner tube 3 flow through the guide channel 8 to the one-way valve 7, the one-way valve 7 only allows the cosmetics to flow out, preventing air and external contaminants from flowing back into the inner tube 3, thus ensuring the hygiene and quality stability of the cosmetics inside the tube. After the user releases the squeeze, the tube body 1 returns to its original shape due to the elasticity of the flexible material. The negative pressure regulating hole 9 in the sealed cavity 4 regulates the air pressure to prevent excessive negative pressure from forming in the cavity. The compression spring 6 and the elastic diaphragm 5 return to their initial positions, ensuring that the cosmetics in the inner tube 3 do not flow back and maintaining the cleanliness of the outlet. When the cosmetics in the tube are about to run out, the elastic diaphragm 5 pushes the remaining cosmetics at the bottom of the inner tube 3 to the guide channel 8 and squeezes them out through the one-way valve 7, ensuring maximum utilization of the cosmetics and reducing waste.

[0034] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0035] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A simplified cosmetic tube, comprising a tube body (1), a tube cap (2), and an inner liner tube (3) disposed inside the tube body (1), wherein one end of the inner liner tube (3) is threadedly connected to the tube cap (2): characterized in that A sealed cavity (4) for reflux is formed between the tube body (1) and the inner liner tube (3). A buffer plate (11) is fixedly provided on one side of the inner wall of the tube body (1). A compression spring (6) is fixedly provided at one end of the buffer plate (11). An elastic diaphragm (5) is fixedly provided at one end of the compression spring (6).

2. A reduced structure cosmetic product hose according to claim 1, wherein: A one-way valve (7) is provided on the pipe cap (2).

3. A reduced structure cosmetic product hose according to claim 1, wherein: The inner wall of the liner tube (3) is provided with multiple evenly distributed guide grooves (8).

4. A reduced structure cosmetic product hose according to claim 1, wherein: The sealed cavity (4) is provided with a negative pressure regulating hole (9).

5. A reduced structure cosmetic product hose according to claim 1, wherein: The outer wall of the tube (1) is provided with scale lines (10).

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