Cosmetic bottle and gasket structure thereof

Abstract

The utility model belongs to the technical field of cosmetic bottles, and discloses a gasket structure of a cosmetic bottle, which comprises an elastic layer and a compression-resistant layer arranged at the bottom of the elastic layer, and the hardness of the compression-resistant layer is greater than that of the elastic layer; the compression-resistant layer is used for protecting the elastic layer and is matched with an external cover body to plug the external bottle body; the elastic layer is used for providing elastic deformation when the gasket is extruded by external force of the cover body and the bottle body. Meanwhile, the utility model further provides the cosmetic bottle with the gasket structure. The anti-compression layer is arranged at the bottom of the elastic layer, the double-layer structure prevents the elastic layer from being extruded by the bottle body for a long time and generating permanent deformation, the elastic layer can provide elastic deformation when the gasket is extruded by external force of the cap body and the bottle body, and the cap screwing hand feeling is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic bottle technology, specifically a cosmetic bottle and its gasket structure. Background Technology

[0002] Cosmetics are essential products used to maintain a good condition. In daily life or while traveling, people need to carry cosmetics for cleansing, caring for, and beautifying their skin and hair. These different types of cosmetics all need to be stored and carried in cosmetic bottles. Existing cosmetic bottles generally consist of a bottle body, a cap, and a gasket. The bottle body holds the cosmetics, while the cap and gasket work together to seal the bottle, enhancing its airtightness and preventing any air or moisture from entering, thus ensuring the product's stability and safety.

[0003] CN221330514U discloses a replaceable inner liner cosmetic bottle, including an outer cap, an inner cap, a shoulder sleeve, a bottle body, an inner bottom cap, and an outer bottom cap. The outer cap is generally shaped like a round cap, hollow inside and open on one side. The inner cap is disposed inside the outer cap and also open on one side. The inner cap has an annular bend that fits against the inner wall of the outer cap. Both sides of the shoulder sleeve have stepped portions that are screwed to the inner sides of the inner cap and the inner bottom cap, respectively. The shoulder sleeve is hollow inside and fits the bottle body. The inner bottom cap is hollow inside and extends through the bottle body. The outer bottom cap is fitted over the outer side of the inner bottom cap. One side of the shoulder sleeve has a first fixing portion that engages with one side of the bottle body. One side of the inner bottom cap has a second fixing portion that engages with the other side of the bottle body. Both the first and second fixing portions are bent towards the bottle body.

[0004] The above technical solution states in paragraph 0031 of the specification that "in order to maintain a seal with the bottle mouth of the bottle body 4, a gasket 7 structure is designed between the inner wall of the top and the bottle body 4", but the structure of the gasket 7 is not described in detail.

[0005] In existing technologies, most cosmetics use gaskets with a single foaming ratio, i.e., gaskets with a single hardness. High-foaming gaskets, which are softer, will undergo permanent deformation under prolonged use and compression, affecting the sealing effect. On the other hand, low-foaming gaskets, which are harder, have a poor tightening feel when screwing on the cap. Specifically, because the gasket is too hard, the bottle and cap cannot elastically deform under compression, so there is no gradual tightening feel that comes with compressing the gasket. Utility Model Content

[0006] The purpose of this application is to solve the above-mentioned problems by providing a gasket structure for a cosmetic bottle. This gasket structure, by setting an anti-compression layer at the bottom of the elastic layer, not only prevents the elastic layer from undergoing permanent deformation due to prolonged pressure from the bottle body, but also allows the elastic layer to provide elastic deformation when the gasket is compressed by external forces from the cap and the bottle body, ensuring a smooth screw-on feel. This application also provides a cosmetic bottle with this gasket structure.

[0007] To achieve the above objectives, this application provides the following technical solution:

[0008] A gasket structure for a cosmetic bottle includes an elastic layer and a pressure-resistant layer disposed at the bottom of the elastic layer, wherein the hardness of the pressure-resistant layer is greater than that of the elastic layer;

[0009] The pressure-resistant layer is used to protect the elastic layer and works in conjunction with the cap of the external device to seal the bottle of the external device;

[0010] The elastic layer is used to provide elastic deformation when the gasket is compressed by external forces from the cap and bottle.

[0011] Preferably, the system further includes an adhesive layer, an elastic layer, and a pressure-resistant layer connected by the adhesive layer.

[0012] Preferably, the elastic layer is made of PE material, the elastic layer has a foaming ratio of 5 to 10 times and a sheet structure, and the elastic layer has a Shore hardness of 30 to 50 degrees.

[0013] Preferably, the thickness of the elastic layer is 0.5 to 1.5 mm.

[0014] Preferably, the compression-resistant layer is an elastic layer made of PE material, the compression-resistant layer has a foaming ratio of 2 to 3 times and a sheet structure, and the Shore hardness of the compression-resistant layer is 60 to 80 degrees.

[0015] Preferably, the thickness of the compressive layer is 0.5 to 1.5 mm.

[0016] Preferably, the thickness of the compressive layer is the same as the thickness of the elastic layer.

[0017] In addition, this application also provides a cosmetic bottle, including a bottle body, a cap detachably connected to the bottle body, and a gasket structure as described above disposed in the cap body.

[0018] Preferably, the bottle body and the cap body are detachable by means of a threaded connection.

[0019] Compared with the prior art, the beneficial effects of this application are:

[0020] This application provides a pressure-resistant layer at the bottom of the elastic layer. The double-layer structure not only prevents the elastic layer from being permanently deformed by the pressure of the bottle over a long period of time, but also allows the elastic layer to provide elastic deformation when the gasket is squeezed by the external force of the cap and the bottle, ensuring a good feel when screwing on the cap. Attached Figure Description

[0021] Figure 1 This is a structural diagram of the cosmetic bottle described in this application;

[0022] Figure 2 yes Figure 1 A magnified view of point A after removing the bottle body and cap;

[0023] The labels for the attached figures are as follows:

[0024] Elastic layer 1; pressure-resistant layer 2; adhesive layer 3; bottle body 4; cap 5. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0026] Example 1

[0027] refer to Figures 1-2 A gasket structure for a cosmetic bottle includes an elastic layer 1 and a pressure-resistant layer 2 disposed at the bottom of the elastic layer 1, wherein the hardness of the pressure-resistant layer 2 is greater than that of the elastic layer 1.

[0028] The pressure-resistant layer 2 is used to protect the elastic layer 1 and cooperates with the cover 5 of the external device to seal the bottle 4 of the external device;

[0029] The elastic layer 1 is used to provide elastic deformation when the gasket is squeezed by the external force of the cap 5 and the bottle 4.

[0030] In this design, by using a double-layer gasket with a pressure-resistant layer 2 and an elastic layer 1, the pressure-resistant layer 2 is in contact with the bottle body 4 instead of the elastic layer 1. This avoids the elastic layer 1 from being permanently deformed by the pressure of the bottle body 4 over a long period of time. Moreover, by setting the elastic layer 1 on the pressure-resistant layer 2, when the cap 5 is tightened, the cap 5 and the bottle body 4 squeeze the gasket, causing the elastic layer 1 to undergo elastic deformation, resulting in a gradually tightening feel.

[0031] It should be noted that the feel is only noticeable when the cap 5 and the bottle 4 are in contact. Specifically, if only the pressure-resistant layer 2 is used, because the pressure-resistant layer 2 has a high hardness and is not easy to undergo elastic deformation, there is no gradual tightening stage when tightening. However, after adopting this gasket structure, when the bottle 4 and the cap squeeze the gasket, the elastic layer 1 is compressed, thus producing a gradually tightening feel.

[0032] In this embodiment, an adhesive layer 3 is also included, and the elastic layer 1 and the compression-resistant layer 2 are connected by the adhesive layer 3. The adhesive layer 3 can be an adhesive.

[0033] Preferably, the elastic layer 1 is made of PE material, the elastic layer 1 has a foaming ratio of 5 to 10 times and a sheet structure, and the elastic layer 1 has a Shore hardness of 30 to 50 degrees.

[0034] It is known that the higher the foaming ratio, the lower the hardness. In specific embodiments, the foaming ratio of the elastic layer 1 can be 5, 6, 7, 8, 9, or 10 times. Therefore, at the above foaming ratios, the Shore hardness should decrease progressively. In a preferred embodiment, the foaming ratio of the elastic layer 1 is 10 times.

[0035] PE material is used because it has good resistance to a variety of chemicals and is lightweight.

[0036] In this embodiment, the thickness of the elastic layer 1 is 0.5 to 1.5 mm. In specific embodiments, the thickness of the elastic layer 1 can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm.

[0037] In this embodiment, the compression-resistant layer 2 is an elastic layer 1 made of PE material, the compression-resistant layer 2 has a foaming ratio of 2 to 3 times and a Shore hardness of 60 to 80 degrees.

[0038] In a specific implementation, the foaming ratio of the pressure-resistant layer 2 can be 2 or 3 times. Compared with the elastic layer 1, the pressure-resistant layer 2 has a higher hardness because it needs to withstand the pressure from the bottle mouth of the bottle body 4 to avoid permanent deformation.

[0039] In this embodiment, the thickness of the compressive layer 2 is 0.5–1.5 mm. In specific embodiments, the thickness of the compressive layer 2 can be 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, or 1.5 mm.

[0040] Preferably, the thickness of the pressure-resistant layer 2 is the same as the thickness of the elastic layer 1. The thickness of the pressure-resistant layer 2 and the elastic layer 1 is the thickness of the gasket. In this embodiment, the thickness of both the pressure-resistant layer 2 and the elastic layer 1 is 1 mm. Of course, technicians can choose to use other thickness combinations according to the actual situation of the product.

[0041] Example 2

[0042] refer to Figures 1-2A cosmetic bottle includes a bottle body 4, a cap 5 detachably connected to the bottle body 4, and a gasket structure as described in Example 1 disposed within the cap 5.

[0043] By adopting the gasket structure of Example 1, the cosmetic bottle of Example 2 can not only meet the sealing requirements, but also ensure the feel of twisting the cap.

[0044] Preferably, the bottle body 4 and the cap body 5 are detachable by means of a threaded connection.

[0045] Specifically, an external thread is provided at the bottle mouth of the bottle body 4, and an internal thread is provided at the cap body 5. The detachable connection is achieved through the cooperation of the external and internal threads. As for the external and internal threads, they are conventional designs in this field, and the technical solution disclosed in Chinese Patent CN211794826U can be referenced for details.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements or modifications can be made without departing from the principle of the present utility model, and these improvements or modifications should also be considered within the protection scope of the present utility model.

Claims

1. A gasket structure for a cosmetic bottle, characterized in that, It includes an elastic layer and a compressive strength layer disposed at the bottom of the elastic layer, wherein the hardness of the compressive strength layer is greater than that of the elastic layer; The pressure-resistant layer is used to protect the elastic layer and cooperates with the cap of the external device to seal the bottle body of the external device; The elastic layer is used to provide elastic deformation when the gasket is compressed by external forces from the cap and bottle body; The elastic layer is made of PE material, and the elastic layer has a foaming ratio of 5 to 10 times and a sheet structure. The thickness of the elastic layer is 0.5 to 1.5 mm. The compression-resistant layer is made of PE material and has a sheet structure with a foaming ratio of 2 to 3 times; the thickness of the compression-resistant layer is 0.5 to 1.5 mm.

2. The gasket structure according to claim 1, characterized in that, It also includes an adhesive layer, through which the elastic layer and the compressive layer are connected.

3. The gasket structure according to claim 1, characterized in that, The Shore hardness of the elastic layer is 30-50 degrees.

4. The gasket structure according to claim 1, characterized in that, The Shore hardness of the compressive layer is 60-80 degrees.

5. The gasket structure according to claim 1, characterized in that, The thickness of the compressive layer is the same as the thickness of the elastic layer.

6. A cosmetic bottle, comprising a bottle body, a cap detachably connected to the bottle body, and a gasket structure as described in any one of claims 1 to 5 disposed within the cap body.

7. The cosmetic bottle according to claim 6, characterized in that, The bottle body and cap are detachable via a threaded connection.

Images