Non-deformable piston for cosmetic container

Abstract

The utility model discloses a non-deformable piston for a cosmetic container, and belongs to the field of cosmetics. The piston comprises a supporting layer and a sealing layer, the sealing layer is arranged on the outer side of the supporting layer, and the sealing layer is in sealing contact with the inner wall of the cosmetic container. The supporting layer comprises an extending cup located in the center, a material pushing piece outwards arranged on the periphery of the upper end of the extending cup, a connecting ring outwards arranged on the periphery of the material pushing piece, a working ring arranged on the outer side of the connecting ring, and a sealing layer arranged on the outer side of the working ring. Compared with a traditional structure, the piston is formed by compounding the hard material supporting material and the soft material sealing material, the hard material serves as a support of the soft material, the piston can not deform or slightly deform under the condition of long-time storage, and therefore it is guaranteed that the soft material on the outer layer can shrink and deform to the minimum degree, and the service life of the piston is prolonged. The piston has long-term stability in product matching, the airtight function cannot be invalid due to contraction deformation, and the airtight function of the product is effectively guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of cosmetics, especially a piston for cosmetic container and not deformed. BACKGROUND

[0002] In daily life, the use of cosmetics is extremely extensive. The main use mode is that the lower part is a storage container, the storage container is provided with cosmetic liquid or material body, and the upper part of the container pumps out and atomizes the cosmetic liquid through a pump for the user to use. The cosmetic containers on the market are generally suction bottles or vacuum bottles. For cosmetics with high prices or special effects, vacuum bottles are generally used.

[0003] The content of the vacuum bottle can be completely isolated from the air, avoiding oxidation and deterioration of the product due to contact with air, and breeding bacteria. The common vacuum bottle on the market is composed of an oval container formed by a cylinder and a piston arranged at the bottom. Its design principle is to use the contraction force of the spring and not to let air enter the bottle to cause a vacuum state, and to use atmospheric pressure to push the piston at the bottom of the bottle forward. However, due to the spring force and atmospheric pressure, the piston cannot be too tightly attached to the bottle wall, otherwise the piston will not be able to rise forward due to excessive resistance; on the contrary, if the piston is easy to move forward, it is easy to leak, so the vacuum bottle has very high requirements for the professionalism of the manufacturer.

[0004] After a long time of use or alternating placement at high and low temperatures for a period of time, the piston will have a large degree of contraction and deformation, so that the contact surface between the piston and the inner wall of the vacuum bottle becomes smaller, thereby existing a risk of leakage. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides a piston for cosmetic container and not deformed.

[0006] The technical scheme of the utility model is: a piston for cosmetic container and not deformed, the piston is arranged in a cosmetic container, the piston comprises:

[0007] a support layer and a sealing layer, the sealing layer is arranged outside the support layer, and the sealing layer is in sealing contact with the inner wall of the cosmetic container;

[0008] The support layer comprises: an extension cup at the center, a pushing piece is arranged outward around the upper end of the extension cup, a connecting ring is arranged outward around the pushing piece, a working ring is arranged outside the connecting ring, and a sealing layer is arranged outside the working ring.

[0009] Further, a connecting clamping groove is arranged outside the working ring, a connecting clamping block is arranged on the sealing layer, and the connecting clamping block and the connecting clamping groove are arranged in cooperation. The stability of the connection between the two is ensured.

[0010] Further, the connecting card slot is provided with at least two, and is any one of rectangular, arc, semicircle.

[0011] Further, the outer side of the sealing layer is provided with at least one sealing protrusion. The sealing effect with the inner wall of the cosmetic container is further ensured by the sealing protrusion.

[0012] Further, when the sealing protrusion is provided with two, the two are provided in parallel. The middle slight concave is ensured, and the sealing effect is improved.

[0013] Further, the sealing layer covers the upper surface of the support layer. The two are completely attached, and the connecting effect is ensured.

[0014] Further, the sealing layer and the support layer are fixedly connected. Generally, the connection is realized by glue, hot melting, or special process.

[0015] Further, the sealing layer and the support layer are combined by a double-color plastic forming process. The double-color plastic forming composite process is prior art, which ensures that the connection between the layers is stable and continuous.

[0016] Further, the support layer is made of hard plastic, and the sealing layer is made of soft plastic. The hard plastic can ensure the stability of the piston shape. Common plastics are generally hard plastics, such as polyamide (nylon), polyester, polypropylene, polystyrene, and the like. The soft plastic is a common sealing material such as silica gel and rubber, which can ensure sealing with the inner wall of the cosmetic container.

[0017] Further, a buffer boss is further provided below the extension cup, and the buffer boss is exposed from the lower surface of the support layer. That is, the buffer boss is in contact with the bottle bottom of the packaging container, and the sealing effect is ensured.

[0018] Further, the connecting ring is provided in an L shape.

[0019] Further, a vacuum pump is arranged at the upper end of the cosmetic container, a bottom disc is arranged at the lower end, and the piston is located in the cosmetic container and is in sealing sliding contact with the inner wall.

[0020] The beneficial technical effects of the utility model are as follows: compared with the traditional structure, the piston of the utility model is composed of two materials of hard material support and soft material sealing, the hard material acts as a support for the soft material, the piston can not be deformed or only slightly deformed in the case of long-term storage, so that the outer soft material can be deformed to the minimum extent, the piston has long-term stability in product cooperation, the air-tight function is not lost due to shrinkage and deformation, and the air-tight function of the product is effectively guaranteed. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a sectional view of the piston.

[0022] Figure 2 This is a side view of the piston.

[0023] Figure 3 This is a schematic diagram of the second type of piston.

[0024] Figure 4 This is a schematic diagram of the third type of piston.

[0025] Figure 5 This is a schematic diagram of the piston inside the bottle for this product.

[0026] in:

[0027] 1. Support layer; 11. Extension cup; 12. Pusher plate; 13. Connecting ring; 14. Working ring.

[0028] 2. Sealing layer; 3. Sealing protrusion; 4. Buffer boss; 5. Connecting slot; 6. Connecting block. Detailed Implementation

[0029] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0030] See appendix Figures 1-5 The piston shown is for use in cosmetic containers and is non-deformable. The piston is disposed within the cosmetic container and includes:

[0031] The support layer 1 and the sealing layer 2 are provided on the outside of the support layer 1 and are in sealed contact with the inner wall of the cosmetic container.

[0032] The support layer 1 includes: an extension cup 11 located at the center, a pusher plate 12 arranged outward around the upper end of the extension cup 11, a connecting ring 13 arranged outward around the pusher plate 12, a working ring 14 arranged outside the connecting ring 13, and a sealing layer 2 arranged outside the working ring 14.

[0033] Furthermore, a connecting groove 5 is provided on the outer side of the working ring 14, and a connecting block 6 is provided on the sealing layer 2. The connecting block 6 is configured to cooperate with the connecting groove 5, ensuring a stable connection between the two.

[0034] Furthermore, at least two connection slots 5 are provided, and they can be any one of rectangular, arc-shaped, or semi-circular.

[0035] Furthermore, at least one sealing protrusion 3 is provided on the outer side of the sealing layer 2. The sealing protrusion 3 further ensures a tight seal with the inner wall of the cosmetic container.

[0036] Further, the sealing protrusion 3 is provided with two, which are parallel. Ensure the middle pico concave, improve the sealing effect.

[0037] Further, the sealing layer 2 covers the upper surface of the support layer 1. Two completely adhere to ensure the connection effect.

[0038] Further, the sealing layer 2 and the support layer 1 are fixedly connected. Generally through glue, hot melt, or special process and so on.

[0039] Further, the sealing layer 2 and the support layer 1 are combined by double-color plastic molding process. Double-color plastic molding composite process is prior art, which ensures that the connection between the layers is stable and continuous.

[0040] Further, the support layer 1 adopts hard plastic, and the sealing layer 2 adopts soft plastic. The hard plastic can ensure the stability of the piston shape, and the common plastic is generally hard plastic, such as polyamide (nylon), polyester, polypropylene, polystyrene and other materials, and the soft plastic is common sealing material such as silica gel and rubber, which can ensure sealing with the inner wall of the cosmetic container.

[0041] Further, the buffer boss 4 is also extended below the extension cup 11, and the buffer boss 4 is exposed on the lower surface of the support layer 1. That is, the buffer boss 4 contacts the bottom of the packaging container, ensuring the sealing effect.

[0042] Further, the connecting ring 13 is provided in L shape.

[0043] Further, the upper end of the cosmetic container is provided with a vacuum pump, the lower end is provided with a chassis, and the piston is located inside the cosmetic container and seals sliding with the inner wall.

[0044] Compared with the traditional structure, the piston of the product is composed of two materials of hard material support and soft material sealing. The hard material acts as a support for the soft material, which can prevent the piston from deforming or deforming slightly during long-term storage, thereby ensuring that the outer soft material can shrink and deform to the smallest extent. The piston has long-term stability in product cooperation and will not cause the air-tight function to fail due to shrinkage and deformation, so that the air-tight function of the product is effectively protected.

[0045] Referring to FIGS. 1 and 2, Figure 1 and 4 as shown, the upper side and the circumference of the support layer completely cover the sealing layer, and the two are processed by double-color plastic molding process, which should be understood as one-piece molding, although there is a split line, but only expresses different colors and different materials.

[0046] Referring to FIGS. 1 and 2, Figure 3 as shown, only the outer side of the working ring is provided with a sealing layer. It can ensure the sealing property.

[0047] Referring to FIGS. 1 and 2, Figure 1As shown in the figure, the sealing grooves are arranged in rectangular shape and in parallel with two groups.

[0048] Referring to the attached Figures 3-4 As shown in the figure, the sealing grooves are arranged in rectangular and arc combination and in parallel with three groups.

[0049] From the attached Figure 1 , 3 -4 can be known, the piston of the design can be selected according to actual needs, and the inner layer support and the outer side sealing can be guaranteed.

[0050] The above only is the preferred embodiment of the utility model, and does not use for limiting the utility model, and it should be pointed out that, for the ordinary skilled person in the prior art, on the premise of not departing from the technical principle of the utility model, can make a number of improvements and variations, and these improvements and variations also should be regarded as the protection range of the utility model.

Claims

1. A piston for a cosmetic container which is not deformed, the piston being provided in a cosmetic container, characterized in that, The piston comprises: a support layer (1) and a sealing layer (2), the sealing layer (2) being arranged outside the support layer (1), and the sealing layer (2) being in sealing contact with the inner wall of the cosmetic container; the support layer (1) comprises: a central extension cup (11), a pushing piece (12) being arranged outside the upper end of the extension cup (11), a connecting ring (13) being arranged outside the pushing piece (12), a working ring (14) being arranged outside the connecting ring (13), and the sealing layer (2) being arranged outside the working ring (14).

2. The piston for a cosmetic container without deformation according to claim 1, characterized in that: The outer side of the working ring (14) is provided with a connecting slot (5), and the sealing layer (2) is provided with a connecting block (6) which is matched with the connecting slot (5).

3. The piston for a cosmetic container without deformation according to claim 2, characterized in that: The connecting slot (5) is arranged at least twice, and is any one of a rectangle, an arc, and a semicircle.

4. The non-deforming piston for a cosmetic container of claim 1, wherein: The outer side of the sealing layer (2) is provided with at least one sealing protrusion (3).

5. The non-deforming piston for a cosmetic container of claim 4, wherein: When the sealing protrusion (3) is arranged twice, the two are arranged in parallel.

6. The non-deforming piston for a cosmetic container of claim 1, wherein: The sealing layer (2) covers the upper surface of the support layer (1).

7. The non-deforming piston for a cosmetic container of claim 1, wherein: The sealing layer (2) is fixedly connected with the support layer (1).

8. The non-deforming piston for a cosmetic container of claim 1, wherein: The sealing layer (2) and the support layer (1) are compounded by a two-color plastic forming process.

9. The non-deforming piston for a cosmetic container of claim 1, wherein: The support layer (1) is made of hard plastic, and the sealing layer (2) is made of soft plastic.

10. The non-deforming piston for a cosmetic container of claim 1, wherein: A buffer boss (4) is further arranged below the extension cup (11), and the buffer boss (4) exposes the lower surface of the support layer (1).

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