Coating product sealing inner container and coating product packaging box

Abstract

The utility model relates to a coating product sealing inner container and a coating product packaging box, the coating product sealing inner container comprises a sealing cover, a base plate and a sealing ring, the sealing cover is used for covering the base plate in an opening and closing mode, the base plate is provided with a first side wall, and a sealing ring is arranged between the first side wall and the sealing ring; at least one annular groove is formed in the inner side wall of the sealing ring, at least one first protruding section is arranged on the side, facing the sealing ring, of the sealing ring, and the annular groove is connected with the first protruding section in a matched and clamped mode. According to the sealing inner container, the tightness of the whole sealing structure is enhanced, the good sealing effect can be kept under the pressure change or vibration condition, the sealing failure risk caused by long-term abrasion or material aging is reduced, and the service life of a sealing system is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of product packaging, in particular to a sealed inner container of a coating product and a coating product packaging box. BACKGROUND

[0002] In the cosmetic and coating product industry, the packaging of products is not only a container for protecting products, but also a key factor for ensuring product hygiene and safety, maintaining product quality stability, and improving user experience. Effective sealing can block external microorganisms, dust and pollutants, and prevent products from being damaged due to oxidation, deterioration or bacterial growth, thereby harming consumer health.

[0003] The inner container of the existing coating product container is usually composed of a cover and a bottom plate. In actual application, due to the tolerance control in the manufacturing process, the physical properties of the material itself, and the limitations of the structural design, it is difficult to avoid the existence of a small gap between the cover and the bottom plate when they are closed. The design of the existing sealing structure is usually simple, and lacks effective sealing mechanism, which leads to the loosening or deformation of the sealing structure during use, thereby weakening the sealing effect. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the sealing structure design of the cover and the bottom plate of the inner container of the coating product container in the prior art is simple, and the sealing is not tight due to the loosening or deformation during use.

[0005] The present application provides a sealed inner container of a coating product, comprising a cover, a bottom plate and a sealing ring, the cover is used to close on the bottom plate, the bottom plate has a first side wall, and a sealing ring is arranged between the first side wall and the sealing ring.

[0006] The inner side wall of the sealing ring is provided with at least one annular groove, and the side of the sealing ring facing the sealing ring is provided with at least one first protruding section, and the annular groove and the first protruding section are matched and clamped.

[0007] Further, the cross-sectional shape of the annular groove is one of rectangular, trapezoidal, V-shaped or arc-shaped.

[0008] Further, the side of the sealing ring facing the sealing ring is further provided with a second protruding section, and the second protruding section abuts against the bottom end of the sealing ring.

[0009] Further, the inner side wall of the sealing ring is provided with a plurality of annular grooves, and the plurality of annular grooves are a multi-stage stepped structure, including at least two grooves with different depths, and the first protruding section is a segmented protrusion matched with the grooves.

[0010] Further, the top of the outer side wall of the sealing ring is provided with an annular sealing lip, and the annular sealing lip is in interference fit with the cover.

[0011] Further, a relief groove is arranged below the annular sealing lip to provide a containing space for the annular sealing lip under extrusion deformation during opening and closing of the cover.

[0012] Further, the inner diameter of the sealing ring is smaller than the outer diameter of the sealing ring.

[0013] Further, the bottom inner wall of the sealing ring is provided with an outwardly inclined guide slope along the axial direction.

[0014] Further, at least one radially protruding sealing rib is arranged on the outer side wall of the sealing ring.

[0015] The application also provides a packaging box for the application product, which comprises the application sealing inner container.

[0016] Based on the above technical solution, the application sealing inner container and the packaging box for the application product have the following beneficial effects:

[0017] The sealing ring is arranged between the sealing ring and the first side wall of the bottom disc to ensure the formation of an effective sealing barrier when the cover is closed. The sealing ring 4 is tightly matched with the first protruding section 31 through the annular groove 45, which further enhances the tightness of the entire sealing structure. This clamping mode ensures that the sealing ring 3 and the sealing ring 4 can maintain stable sealing performance in long-term use, and even under pressure changes or vibration conditions, the sealing effect is also good. The risk of sealing failure caused by long-term wear or material aging is reduced, and the service life of the sealing system is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the application, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 It is a sectional view of the sealing ring of the application example of the application product sealing inner container;

[0020] Figure 2 It is a sectional view of the application example of the application product sealing inner container;

[0021] Figure 3 It is Figure 2 the local enlarged view of A in the above-mentioned

[0022] Figure 4 It is a structural schematic view of the sealing ring of the application example of the application product sealing inner container;

[0023] Figure 5A cross-sectional view of another possible implementation of a sealing ring for sealing the inner container of the applicator of the embodiments of the present application;

[0024] Figure 6 An exploded view of the inner container of the applicator of the embodiments of the present application.

[0025] In the figure, the reference numerals correspond to: 1, cover; 11, annular protrusion; 2, bottom disc; 21, first side wall; 22, second side wall; 23, third side wall; 24, connecting groove; 25, notch; 121, accommodating cavity; 3, sealing ring; 31, first protruding section; 32, second protruding section; 33, filler; 4, sealing ring; 41, annular sealing lip; 42, avoiding groove; 43, guiding slope; 44, sealing rib; 45, annular groove. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0027] In the description of the present application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom" and the like indicate the orientation or positional relationship shown in the drawings, or are directed to the components themselves in the vertical, perpendicular or gravitational direction, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features.

[0028] Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the term "about" when used in connection with a numerical value, means that the value is within 10% of the recited value. As used herein, the term "consisting essentially of" means that the composition or process includes the recited elements, and includes additional elements that do not materially affect the basic and novel characteristics of the composition or process. As used herein, the term "consisting of" means an exclusive inclusion, that is, the composition or process includes only the recited elements.

[0029] As shown in Figures 1-6 The present application provides a sealed inner container for cosmetic products and a packaging box for cosmetic products. The sealed inner container is used to contain various cosmetic products, such as liquid, powder, paste, and cream. The sealed inner container can effectively prevent external pollution to protect the hygiene of the cosmetic products, and provide stable structural support to ensure the stability of the container, thereby facilitating the user to easily access and use the products. In the embodiments of the present application, the cosmetic products broadly cover two categories: color cosmetic products and skin care products.

[0030] In the embodiments of the present application, the sealed inner container for cosmetic products comprises a cover 1, a base 2, and a sealing ring 3. The cover 1 is used to be hingedly closed on the base 2. The base 2 has a first side wall 21, and a sealing ring 3 is arranged between the first side wall 21 and the sealing ring 3. An inner side wall of the sealing ring 4 is provided with at least one annular groove 45, and the sealing ring 3 is provided with at least one first protruding section 31 on the side facing the sealing ring 4. The annular groove 45 and the first protruding section 31 are matched and connected.

[0031] Specifically, the cover 1 is used to close or open the inner container, protecting the internal coating from external contamination. The edge of the cover 1 is usually equipped with a locking structure (not shown in the figure), which cooperates with the corresponding locking components on the bottom plate 2 through rotation, pressing or other mechanical actions, achieving firm locking or easy opening. The bottom plate 2 serves as the main part of the sealed container, used to directly bear the coating, and has a first side wall 21 extending upward, and the inner side of the first side wall 21 is provided with a second side wall 22 parallel thereto. The second side wall 22 is surrounded by the bottom surface of the bottom plate 2 to form a containing cavity 121 for storing coating materials. The shape and height of the second side wall 22 are designed according to the shape and capacity requirements of the coating. The sealing ring 3 is arranged between the first side wall 21 and the second side wall 22, and serves to enhance the sealing effect. The sealing ring 3 is annular in structure and has a certain elasticity, so as to provide better sealing pressure when the cover 1 is pressed.

[0032] As shown in the embodiment of the present application, Figures 1-3 The sealing ring 3 is provided with a sealing ring 4 between the first side wall 21 and the second side wall 22, which ensures the formation of an effective sealing barrier when the cover 1 is closed. On the inner side wall of the sealing ring 4, an annular groove 45 is provided, and the side of the sealing ring 3 facing the sealing ring 4 is provided with a first protruding section 31 corresponding to the annular groove 45. The shape, size and position of the first protruding section 31 are matched with the annular groove 45. When the sealing ring 3 contacts the sealing ring 4 and is subjected to a certain pressure, the first protruding section 31 can be smoothly inserted into the annular groove 45, forming a tight sealing structure.

[0033] The sealing ring 4 is arranged between the bottom plate 2 and the sealing ring 3, reducing the gap between the bottom plate 2 and the sealing ring 3, ensuring the formation of an effective sealing barrier when the cover is closed, and effectively preventing the penetration of fluid or gas. The sealing ring 4 is tightly matched with the first protruding section 31 through the annular groove 45, further enhancing the tightness of the entire sealing structure. This clamping method ensures that the sealing ring 3 and the sealing ring 4 can maintain stable sealing performance in long-term use, and can maintain good sealing effect even under conditions of pressure change or vibration. It reduces the risk of sealing failure due to long-term wear or material aging, prolonging the service life of the sealing system. The sealing structure is suitable for different working environments and sealing requirements, and can meet different application scenarios by adjusting the number and shape of the annular groove and the first protruding section.

[0034] In another possible implementation, two equidistant annular grooves 45 are designed on the inner side wall of the sealing ring 4. The side of the sealing ring 3 facing the sealing ring 4 is provided with two first protruding sections 31 corresponding to the annular grooves 45, and the shape, size and position of each first protruding section 31 are matched with the annular groove 45. This double annular groove 45 sealing structure further enhances the sealing and connecting effect, and is especially suitable for application scenarios that need to withstand higher pressure or temperature fluctuations.

[0035] In another possible implementation, the inner side wall of the sealing ring 4 is provided with a plurality of annular grooves 45, which are multi-stage stepped structures including at least two levels of grooves with different depths. The side of the sealing ring 3 facing the sealing ring 4 is provided with a plurality of first protruding sections 31 corresponding to the annular grooves 45, each of which precisely matches the corresponding annular groove 45. This multi-stage sealing structure not only improves the reliability and durability of the seal, but also enables the sealing system to adapt to greater deformation and displacement.

[0036] Further, the cross-sectional shape of the annular groove 45 is one of rectangular, trapezoidal, V-shaped or arc-shaped. The annular groove with a rectangular cross-section can provide a stable contact area, helping to evenly distribute the sealing pressure and reduce the risk of leakage. The annular groove with a trapezoidal cross-section can better guide the first protruding section 31 of the sealing ring 3 to embed when the annular groove 45 is under pressure, forming a tighter seal. The annular groove with a V-shaped cross-section can produce a self-locking effect, maintaining the stable position of the sealing ring even in the case of pressure fluctuations, reducing the possibility of leakage. The annular groove with an arc-shaped cross-section helps to reduce the frictional resistance of the sealing ring 3 during embedding, while providing a smooth sealing interface to enhance the sealing effect.

[0037] Further, the side of the sealing ring 3 facing the sealing ring 4 is also provided with a second protruding section 32, which abuts the bottom end of the sealing ring 4. Preferably, the second protruding section 32 is arranged in parallel with the first protruding section 31, and the second protruding section 32 abuts the bottom end of the sealing ring 4, enhancing the contact area and stability between the sealing ring 3 and the sealing ring 4. The outer diameter of the second protruding section 32 is greater than that of the first protruding section 31, which is used to engage with the fixed protrusion (not shown in the figure) on the bottom plate 2, so as to fix the sealing ring 3 on the bottom plate 2, achieving double fixation of the sealing ring 3 on the bottom plate 2, effectively preventing displacement or falling of the sealing ring 3 due to vibration or pressure changes during use.

[0038] The outer side wall of the sealing ring 4 is provided with an annular sealing lip 41, which is in interference fit with the cover 1. Below the annular sealing lip 41 is provided with a relief groove 42, which provides accommodation space for the annular sealing lip 41 deformed by extrusion during the opening and closing of the cover 1.

[0039] The annular sealing lip 41 will deform slightly when subjected to pressure from the cover 1, tightly adhering to the inner wall of the cover 1, thereby achieving sealing. The provision of the relief groove 42 optimizes the deformation recovery ability of the annular sealing lip 41 when subjected to pressure from the cover 1, avoiding permanent deformation or damage of the annular sealing lip due to excessive extrusion during the opening and closing of the cover. It also ensures that the annular sealing lip 41 can still maintain good sealing effect after multiple openings and closings, further optimizing the sealing effect and prolonging the service life of the sealing ring.

[0040] The shape of the avoidance groove 42 can be one of trapezoidal, V-shaped, U-shaped or arc-shaped groove.

[0041] As shown in the embodiments of the present application, Figure 3 In some possible embodiments, the included angle between the groove bottom of the avoidance groove 42 and the groove wall connected with the annular sealing lip 41 is obtuse, so as to optimize the deformation energy storage.

[0042] In the embodiments of the present application, the side of the cover 1 facing the bottom disc 2 is provided with an annular convex edge 11, and the inner wall of the annular convex edge 11 is in interference fit with the annular sealing lip 41. Specifically, when the cover 1 is combined with the bottom disc, the annular sealing lip 41 will be deformed due to extrusion, so as to be tightly attached to the outer wall of the annular convex edge 11. The interference fit between the annular convex edge 11 and the annular sealing lip 41 enables the sealing structure to remain tight under dynamic conditions, thereby ensuring the sealing effect between the cover 1 and the bottom disc 2.

[0043] The sealing ring 4 is located between the sealing ring 3 and the first side wall 21 of the bottom disc 2, and the inner wall thereof is tightly attached to the outer wall of the sealing ring 3 to form a sealing interface. At the same time, the annular sealing lip 41 on the outer side wall of the sealing ring 4 is in contact with the inner wall of the cover 1 to realize another sealing. The sealing ring 3 serves as an intermediate part, which is connected with the sealing ring 4 and cooperates with the first side wall 21 and the second side wall 22 of the bottom disc 2 to form a complete sealing system.

[0044] In one possible embodiment, the outer diameter of the annular sealing lip 41 is greater than the outer diameter of the outer side wall of the sealing ring 4 body, so as to ensure the reliability of sealing or positioning. The depth and width of the avoidance groove can be optimized according to the deformation characteristics of the annular sealing lip 41, so as to effectively accommodate the deformation without affecting the sealing effect.

[0045] Further, the inner diameter of the sealing ring 4 is smaller than the outer diameter of the sealing ring 3, and the purpose of this arrangement is to ensure that the sealing ring 4 can be tightly attached to the sealing ring 3 while providing a certain pre-tightening force to enhance the sealing effect. This design enables the sealing ring 4 to produce slight elastic deformation during installation, so as to tightly wrap the sealing ring 3 and form an effective sealing interface.

[0046] Further, as shown in the embodiments of the present application, Figure 3 Further, as shown in the embodiments of the present application,

[0047] In one possible embodiment, as shown in the embodiments of the present application, Figure 5As shown, the outer wall of the sealing ring 4 is provided with at least one radially protruding sealing rib 44. The sealing rib 44 can be provided on the outer wall of the sealing ring 4 below the relief groove 42, for pressing contact with the first side panel 21 to achieve limiting and fixing of the sealing ring 4. The setting of the sealing rib 44 increases the contact area between the sealing ring 4 and the inner wall of the cover 1, improving the sealing effect. At the same time, the setting of the sealing rib 44 helps to disperse stress and prevent the sealing ring 4 from being locally damaged under pressure.

[0048] The sealing ring 4 can be made of thermoplastic rubber, nitrile rubber, or silicone. Thermoplastic rubber (TPE) is a material combining the elasticity of rubber and the processing properties of thermoplastics. It possesses good weather resistance, chemical resistance, and abrasion resistance, making it suitable for various temperature and pressure environments. It can be molded through thermoplastic processing methods such as injection molding and extrusion, facilitating large-scale production. Nitrile rubber (NBR) is a widely used synthetic rubber with excellent oil resistance, abrasion resistance, and chemical corrosion resistance. It is suitable for sealing applications involving contact with petroleum, greases, and various chemicals. It has moderate strength and elasticity and is easy to process and mold. Silicone is a high-performance synthetic rubber with excellent high-temperature resistance, low-temperature resistance, oxidation resistance, and ozone resistance. It also has good biocompatibility and electrical insulation. Silicone has good elasticity, is easily compressed and recovers, and is suitable for sealing applications requiring frequent compression and release.

[0049] In this embodiment, the sealing ring 3 is embedded between the first side 21 and the second side 22 of the chassis 2, forming a certain space between them to accommodate the sealing ring 3, so that the sealing ring 3 can be firmly fixed on the chassis 2 during installation, avoiding detachment or displacement due to movement or vibration.

[0050] In a preferred embodiment, a third sidewall 23 is provided between the first sidewall 21 and the second sidewall 22. A groove is formed between the third sidewall 23 and the second sidewall 22 to accommodate the first part of the sealing ring 3. A groove is also formed between the third sidewall 23 and the first sidewall 21 to accommodate the second part of the sealing ring 3, so that the sealing ring 3 can be supported on the third sidewall 23. When the cover 1 is closed onto the chassis 2, the cover 1 will come into contact with the sealing ring 3. Since the sealing ring 3 is firmly supported on the third sidewall 23, it can effectively prevent fluid or gas from leaking from the gap between the chassis 2 and the cover 1, thus ensuring both stability and sealing effect.

[0051] In one possible implementation, the sealing ring 3 has an inverted U-shaped cross-section. The inverted U-shaped sealing ring 3 is snapped onto the third sidewall 23, and a filler 33 is provided between the inverted U-shaped structure and the third sidewall 23 to reduce the gap between the sealing ring 3 and the third sidewall 23.

[0052] In one possible implementation, the filler 33 can be a soft rubber layer disposed within a U-shaped groove. The filler 33 is press-fitted with the third side panel 23, specifically with an upper and lower press-fit. The inverted U-shaped sealing ring can better adapt to the shape of the third side panel 23, and together with the press-fit of the filler, it can effectively reduce gaps, thereby improving sealing performance. The design of the filler 33 also ensures the stable position of the sealing ring 3 within the chassis 2, preventing displacement even during transportation or use. Furthermore, the soft rubber filler can absorb and disperse external forces, reducing wear between the sealing ring 3 and the third side panel 23, and extending the service life of the packaging box liner.

[0053] This application also provides a coating packaging box, including a sealed inner liner for the coating.

[0054] The coating sealing liner can be detachably installed inside the coating packaging box. After the coating inside is used up, the old coating sealing liner can be easily removed and replaced with a new one, so that the packaging box can be reused, which helps to save costs and protect the environment.

[0055] In the embodiments of this application, such as Figure 6 As shown, a plurality of connecting grooves 24 are provided at the bottom of the outer periphery of the chassis 2, and the plurality of connecting grooves 24 are arranged sequentially at intervals. Preferably, there are four connecting grooves 24, which are respectively provided on the four outer side walls of the chassis 2, for detachable connection between the inner liner of the coated product and the outer packaging box. Furthermore, notches 25 are provided at the four apex corners of the chassis 2, and the notches 25 are used to abut against the inner bottom of the outer shell, so as to achieve a stable fit between the chassis 2 and the inner bottom, avoiding the introduction of a third component, and thus achieving stable fixation between the chassis 2 and the inner bottom.

[0056] It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be determined by the appended claims.

Claims

1. A sealed cartridge for an applicator, characterized in that, The sealing ring (3) is provided with at least one first protruding section (31) on the side facing the sealing ring (4), and the inner side wall of the sealing ring (4) is provided with at least one annular groove (45) matched with the first protruding section (31). The cross-sectional shape of the annular groove (45) is one of rectangular, trapezoidal, V-shaped or arc-shaped.

2. A sealed cartridge for an applicator according to claim 1, wherein The sealing ring (3) is further provided with a second protruding section (32) on the side facing the sealing ring (4), and the second protruding section (32) is in abutment with the bottom end of the sealing ring (4).

3. The applicator sealed cartridge of claim 1, wherein, The inner side wall of the sealing ring (4) is provided with a plurality of annular grooves (45), and the plurality of annular grooves (45) are in a multi-stage stepped structure and include at least two grooves with different depths.

4. The sealed liner for an applicator according to claim 1, wherein The outer side wall of the sealing ring (4) is provided with an annular sealing lip (41) at the top, and the annular sealing lip (41) is in interference fit with the cover (1).

5. The sealed liner for an applicator according to claim 1, wherein The annular sealing lip (41) is provided with an avoiding groove (42) below, which provides accommodation space for the annular sealing lip (41) under extrusion deformation during opening and closing of the cover (1).

6. A sealed cartridge for an applicator according to claim 5, wherein The inner diameter of the sealing ring (4) is smaller than the outer diameter of the sealing ring (3).

7. The sealed liner for an applicator according to claim 1, wherein The bottom inner wall of the sealing ring (4) is provided with a guide inclined surface (43) inclined outward along the axial direction.

8. The applicator sealed inner liner of claim 1, wherein, The outer side wall of the sealing ring (4) is provided with at least one radially protruding sealing rib (44).

9. The applicator sealed inner liner of claim 1, wherein, It comprises the sealing inner bag of the coating product according to any one of claims 1-9.

10. A package of applicator products, characterized in that ​

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