Easy opening and closing cosmetic inner container, and cosmetic container

Abstract

The present disclosure provides an easy opening and closing cosmetic cartridge, and a cosmetic container. The cosmetic cartridge includes: an inner cap, an intermediate ring, and a powder pan, where the powder pan is fixedly disposed in the intermediate ring; a sealing ring is fixedly disposed on the inner cap; the sealing ring is made of an elastic material; hardness of the sealing ring is less than hardness of the intermediate ring; the sealing ring is configured to seal the intermediate ring; a relief groove is formed in the sealing ring; and when the inner cap is opened and closed relative to the intermediate ring, the sealing ring can deform toward the relief groove. In the container, due to the relief groove in the sealing ring, when the inner cap is opened and closed, the sealing ring can deform for relief, thereby reducing the difficulty in opening and closing the inner cap, and improving the user experience.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the cosmetic packaging technology, and in particular to an easy opening and closing cosmetic cartridge, and a cosmetic container.BACKGROUND TECHNOLOGY

[0002] For existing cosmetic containers, in order to ensure hermetic storage of materials, an inner cap and an intermediate ring are sealed by a sealing ring. However, when the inner cap is opened and closed relative to the intermediate ring, the sealing ring and the intermediate ring are in the interference fit, causing difficulties in opening and closing of the inner cap. Moreover, when the inner cap is opened and closed, the sealing ring and the intermediate ring become seriously worn, leading to sealing failure of the sealing ring.CONTENT OF THE INVENTION

[0003] In order to overcome the above defects, the present disclosure provides an easy opening and closing cosmetic cartridge. In the cosmetic cartridge, due to a relief groove in the sealing ring, when an inner cap is opened and closed, the sealing ring can deform for relief, thereby reducing the difficulty in opening and closing the inner cap, and improving the user experience.

[0004] To solve the technical problems, the present disclosure employs the following technical solutions: The present disclosure provides an easy opening and closing cosmetic cartridge, including: an inner cap, an intermediate ring, and a powder pan, where the powder pan is fixedly disposed in the intermediate ring; a sealing ring is fixedly disposed on the inner cap; the sealing ring is made of an elastic material; hardness of the sealing ring is less than hardness of the intermediate ring; the sealing ring is configured to seal the intermediate ring; a relief groove is formed in the sealing ring; and when the inner cap is opened and closed relative to the intermediate ring, the sealing ring can deform toward the relief groove.

[0005] Optionally, the sealing ring includes an annular structure that is open at an upper end and a lower end; an inner sidewall of the sealing ring is attached to an outer sidewall of the inner cap; a longitudinal cross-section of the inner sidewall of the sealing ring includes an arc-shaped segment and a first straight segment that are connected to each other; and the arc-shaped segment is located above the first straight segment.

[0006] Optionally, a tangent line of the arc-shaped segment is a straight line K; and an included angle between the straight line K and the first straight segment is a, where a is an obtuse angle.

[0007] Optionally, the relief groove includes a first sidewall and a second sidewall; a longitudinal cross-section of the first sidewall includes a second straight segment; a longitudinal cross-section of the second sidewall includes a third straight segment; the second straight segment is parallel to the first straight segment; the third straight segment is parallel to a tangent line of the arc-shaped segment; and an extended line of the second straight segment intersects with an extended line of the third straight segment.

[0008] Optionally, the relief groove is of a cylindrical annular structure; and the relief groove is coaxial with the sealing ring.

[0009] Optionally, the relief groove is a blind groove; an upper end of the relief groove is a sealed end; and a lower end of the relief groove is an open end.

[0010] Optionally, a hermetically attached position is provided between the sealing ring and the intermediate ring; the sealing ring has a maximum outer diameter of d1; the intermediate ring has a minimum inner diameter of d2; and both a maximum outer diameter position of the sealing ring and a minimum inner diameter position of the intermediate ring are located at the hermetically attached position, where the d1 is greater than the d2, and a difference between the d1 and the d2 is 0.1 mm to 0.5 mm.

[0011] Optionally, an outer sidewall of the sealing ring extends outward along a radial direction to form an annular protrusion; an inner sidewall of the intermediate ring is recessed inward to form an annular groove; the annular protrusion is interference-fitted into the annular groove; and the annular protrusion and the annular groove form a hermetically attached position.

[0012] Optionally, the sealing ring is located on a lower end surface of the inner cap; and the inner cap and the sealing ring are integrally formed by two-shot molding.

[0013] Optionally, when the inner cap is closed onto the intermediate ring, an exhaust passage is formed between the sealing ring and the intermediate ring; and the exhaust passage is configured to realize circulation of air inside and outside the intermediate ring.

[0014] Optionally, a first sleeve and a second sleeve are fixedly disposed on the intermediate ring; the second sleeve is located outside the first sleeve; the sealing ring is hermetically attached to an inner sidewall of the first sleeve; and the second sleeve is snap-fitted with the inner cap.

[0015] The present disclosure further provides a cosmetic container, including: the cosmetic cartridge; a base assembly, where the cosmetic cartridge is detachably connected to the base assembly; and an outer cap, where the outer cap is rotatably disposed on the base assembly through a second hinge assembly, and the outer cap can be closed onto the inner cap.

[0016] The present disclosure has the following beneficial effects: 1) According to the present disclosure, since the sealing ring is made of the elastic material, and the relief groove is formed in the sealing ring, an elastic moving space is provided for the sealing ring. When the inner cap is closed, the intermediate ring squeezes the outer sidewall of the sealing ring, such that the sealing ring deforms toward the relief groove for relief, thereby reducing a frictional force between the sealing ring and the intermediate ring, namely reducing the difficulty in closing the inner cap. When the inner cap is opened, the sealing ring can also deform for relief. Therefore, because of the relief groove in the sealing ring in the present disclosure, when the inner cap is opened and closed, the sealing ring can deform for relief, thereby reducing the difficulty in opening and closing the inner cap, and improving the user experience. Meanwhile, the present disclosure reduces the frictional force between the sealing ring and the intermediate ring, improving the sealing effect of the sealing ring, and extending the service life of the sealing ring. 2) According to the present disclosure, the exhaust passage is formed between the sealing ring and the intermediate ring, and the exhaust passage is configured to realize circulation of air inside and outside the intermediate ring. When the inner cap is closed, air between the sealing ring and the intermediate ring can be exhausted timely through the exhaust passage. When the inner cap is opened, outside air enters a region between the intermediate ring and the sealing ring through the exhaust passage, thereby eliminating a difference between internal and external pressures of the region between the sealing ring and the intermediate ring, and facilitating smooth opening and closing of the inner cap. DESCRIPTION OF THE DRAWINGS

[0017] FIG. 1 is a first schematic structural view of a cosmetic container according to Embodiment 1 of the present disclosure; FIG. 2 is an enlarged view of A shown in FIG. 1; FIG. 3 is a second schematic structural view of a cosmetic container according to Embodiment 1 of the present disclosure; FIG. 4 is an enlarged view of B shown in FIG. 3; FIG. 5 is an exploded view of a cosmetic container according to Embodiment 1 of the present disclosure; FIG. 6 is a first assembly view of an inner cap and an intermediate ring according to Embodiment 1 of the present disclosure; FIG. 7 is a second assembly view of an inner cap and an intermediate ring according to Embodiment 1 of the present disclosure; FIG. 8 is a first schematic structural view of an inner cap according to Embodiment 1 of the present disclosure; FIG. 9 is a second schematic structural view of an inner cap according to Embodiment 1 of the present disclosure; FIG. 10 is a third schematic structural view of an inner cap according to Embodiment 1 of the present disclosure; FIG. 11 is a first schematic structural view of an intermediate ring according to Embodiment 1 of the present disclosure; FIG. 12 is a second schematic structural view of an intermediate ring according to Embodiment 1 of the present disclosure; FIG. 13 is a first schematic structural view of a powder pan according to Embodiment 1 of the present disclosure; FIG. 14 is a second schematic structural view of a powder pan according to Embodiment 1 of the present disclosure; FIG. 15 is a schematic structural view of a cosmetic container according to Embodiment 2 of the present disclosure; FIG. 16 is an enlarged view of C shown in FIG. 15; FIG. 17 is a schematic structural view of a cosmetic container according to Embodiment 3 of the present disclosure; and FIG. 18 is a schematic structural view of a cosmetic container according to Embodiment 4 of the present disclosure.

[0018] In the figures: 10-inner cap, 11-first hinge, and 12-first hinge shaft; 20-sealing ring, 21-annular protrusion, 22-relief groove, 23-arc-shaped segment, 24-first straight segment, 25-second straight segment, and 26-third straight segment; 30-intermediate ring, 31-first sleeve, 32-second sleeve, 33-exhaust groove, 34-annular groove, 35-second hinge, 36-mesh fabric, and 40-powder pan; 50-outer cap, 51-third hinge, 52-second hinge shaft, 53-groove, 54-mirror, 55-first magnet, and 56-magnetic metal piece; and 60-inner base, 70-outer base, 71-fourth hinge, 72-button, 73-hook, 74-rear fastener, and 75-second magnet. SPECIFIC IMPLEMENTATIONS

[0019] The following describes the technical solutions in the embodiments of the present application clearly and completely with reference to the embodiments of the present application. Apparently, the embodiments described are merely some rather than all of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0020] It should be noted that the terms "first", "second" and so on in the description and claims of the present application and in the above accompanying drawings are intended to distinguish similar objects but do not necessarily indicate a specific order or sequence. It should be understood that the objects used in such a way may be exchanged under proper conditions to make it possible to implement the described implementations of this application in sequences except those illustrated or described herein. Moreover, the terms "include", "have" and their variants mean to cover a non-exclusive inclusion. For example, a process, method, system, product or device that includes a list of steps or units is not necessarily limited to those steps or units which are clearly listed. Instead, they may include other steps or units which are not expressly listed or inherent to such a process, method, product, or device.

[0021] For ease of description, spatially relative terms, such as "above", "on the upper side of', "on the upper surface of' and "on", can be used to describe the spatial positional relationship between components or features shown in the figure. It should be understood that the spatially relative terms are intended to encompass different orientations of the components in use or operation in addition to those shown in the figure. For example, if a component in the figure is inverted, it is described as a component "above other component or structure" or "on other component or structure". Therefore, the component will be positioned as "below other component or structure" or "under other component or structure". Therefore, the exemplary term "above" may include both orientations "above" and "below". The component may also be positioned in other different ways (rotated by 90 degrees or in other orientations), but the relative description of the space should be explained accordingly.

[0022] Embodiment 1: As shown in FIGS. 1-14, a cosmetic container includes a cosmetic cartridge. The cosmetic cartridge includes inner cap 10, intermediate ring 30, and powder pan 40. The powder pan 40 is fixedly disposed in the intermediate ring 30. Sealing ring 20 is fixedly disposed on the inner cap 10. The sealing ring 20 is made of an elastic material. Hardness of the sealing ring 20 is less than hardness of the intermediate ring 30. The sealing ring 20 is configured to seal the intermediate ring 30, so as to achieve a hermetic function of the powder pan 30. A cosmetic material is stored in the powder pan 40. Relief groove 22 is formed in the sealing ring 20. Optionally, the relief groove 22 extends to an outer side of the sealing ring 20. When the inner cap 10 is opened and closed relative to the intermediate ring 30, namely when the inner cap 10 is opened from or closed onto the intermediate ring 30, the sealing ring 20 can deform toward the relief groove 22, thereby avoiding the intermediate ring 30, and reducing a frictional force between the sealing ring 20 and the intermediate ring 30. After the inner cap 10 is opened, the sealing ring 20 is restored to its original shape. Alternatively, after the inner cap 10 is closed onto the intermediate ring 30, the sealing ring 20 is also restored to seal the intermediate ring 30.

[0023] The elastic material includes a thermoplastic elastomer and various special saturated rubbers that cannot be sulfur-vulcanized. The thermoplastic elastomer includes a thermoplastic polyurethane elastomer rubber (TPU), a thermoplastic polyester elastomer (TPEE), a styrene-butadiene-styrene block copolymer (SBS), etc.

[0024] According to the present disclosure, the inner cap and the intermediate ring are sealed by the sealing ring, so as to seal the powder pan, thereby preventing the cosmetic material stored in the container from being contaminated by outside air for a long time.

[0025] Since the sealing ring 20 is made of the elastic material, and the relief groove 22 is formed in the sealing ring 20, an elastic moving space is provided for the sealing ring. When the inner cap 10 is closed, the intermediate ring squeezes the outer sidewall of the sealing ring, such that the sealing ring deforms toward the relief groove 22 for relief, thereby reducing the frictional force between the sealing ring and the intermediate ring, namely reducing the difficulty in closing the inner cap. When the inner cap 10 is opened, the sealing ring can also deform for relief. Therefore, because of the relief groove in the sealing ring in the present disclosure, when the inner cap is opened and closed, the sealing ring can deform for relief, thereby reducing the difficulty in opening and closing the inner cap, and improving the user experience. Meanwhile, the present disclosure reduces the frictional force between the sealing ring and the intermediate ring, improving the sealing effect of the sealing ring, and extending the service life of the sealing ring.

[0026] As shown in FIG. 1 and FIG. 2, the sealing ring 20 includes an annular structure that is open at an upper end and a lower end. An inner sidewall of the sealing ring 20 is attached to an outer sidewall of the inner cap 10. A longitudinal cross-section of the inner sidewall of the sealing ring 20 includes arc-shaped segment 23 and first straight segment 24 that are connected to each other. The arc-shaped segment 23 is located above the first straight segment 24. As shown in FIG. 1 and FIG. 2, a direction where outer cap 50 is located is defined as an upward side of the sealing ring 20, and a direction where the powder pan 40 is located is defined as a downward side of the sealing ring 20. The arc-shaped segment 23 is located at the upward side of the first straight segment 24, which means that the arc-shaped segment 23 is closer to the outer cap 50 than the first straight segment 24. The so-called longitudinal cross-section of the sealing ring 20 refers to a cross-section passing through an axial centerline of the inner cap 10. The arc-shaped segment 23 is located at the upper end of the sealing ring 20 and attached to an arc-shaped surface of the inner cap 10. The first straight segment 24 is located at the lower end of the sealing ring 20 and attached to a side of the inner cap 10. That is, the design in which the longitudinal cross-section of the inner sidewall of the sealing ring 20 includes the arc-shaped segment 23 and the first straight segment 24 is intended to accommodate a structure of the outer sidewall of the inner cap 10, so as to ensure a bonding strength and a sealing effect between the sealing ring and the inner cap.

[0027] Optionally, a tangent line of the arc-shaped segment 23 is a straight line K. An included angle between the straight line K and the first straight segment 24 is a, a being an obtuse angle.

[0028] As shown in FIG. 2, the relief groove 22 includes a first sidewall and a second sidewall. A longitudinal cross-section of the first sidewall includes second straight segment 25. A longitudinal cross-section of the second sidewall includes third straight segment 26. The second straight segment 25 is parallel to the first straight segment 24. The third straight segment 26 is parallel to a tangent line of the arc-shaped segment 23. An extended line of the second straight segment 25 intersects with an extended line of the third straight segment 26. Optionally, the first sidewall is shaped as a cylindrical surface, and the second sidewall is shaped as a conical surface. With this shape of the relief groove 22, the wall thickness of the sealing ring can be more uniform, reducing the difficulty in injection molding, and facilitating molding of the sealing ring.

[0029] As shown in FIG. 2 and FIG. 4, the relief groove 22 is a blind groove. An upper end of the relief groove 22 is a sealed end. A lower end of the relief groove 22 is an open end. Due to the relief groove 22, when the sealing ring 20 is sealed to the intermediate ring 30, the sealing ring 20 can deform toward the relief groove, such that the inner cap 10 is closed onto the intermediate ring conveniently, reducing the frictional force between the sealing ring 20 and the intermediate ring 30. After the inner cap 10 is attached to the intermediate ring 30, the sealing ring 20 is restored to a normal state to seal the intermediate ring 30.

[0030] A hermetically attached position is provided between the sealing ring 20 and the intermediate ring 30. The sealing ring 20 has a maximum outer diameter of d1. The intermediate ring 30 has a minimum inner diameter of d2. Both a maximum outer diameter position of the sealing ring 20 and a minimum inner diameter position of the intermediate ring 30 are located at the hermetically attached position. The d1 is greater than the d2, and a difference between the d1 and the d2 is 0.1 mm to 0.5 mm. That is, at the hermetically attached position, the sealing ring 20 and the intermediate ring 30 are in interference fit.

[0031] As shown in FIG. 1 and FIG. 2, an outer sidewall of the sealing ring 20 extends outward along a radial direction to form annular protrusion 21. An inner sidewall of the intermediate ring 30 is recessed inward to form annular groove 34. The annular protrusion 21 is interference-fitted into the annular groove 34. The annular protrusion 21 and the annular groove 34 form the hermetically attached position. With the annular protrusion 21 and the annular groove 34 that are fitted to each other, the sealing effect of the sealing ring 20 can further be improved.

[0032] As shown in FIGS. 8-10, the sealing ring 20 is located on a lower end surface of the inner cap 10. The inner cap 10 and the sealing ring 20 are integrally formed by two-shot molding. Integrally forming the inner cap 10 and the sealing ring 20 through injection molding ensures the high bonding strength and the good sealing effect between the inner cap and the sealing ring.

[0033] When the inner cap 10 is closed onto the intermediate ring 30, an exhaust passage is formed between the sealing ring 20 and the intermediate ring 30. The exhaust passage is configured to realize circulation of air inside and outside the intermediate ring 30. The hermetically attached position is provided between the sealing ring 20 and the intermediate ring 30. The powder pan 40 is located at a lower side of the hermetically attached position, and the exhaust passage is located at an upper side of the hermetically attached position, thereby ensuring that the hermetical effect between the sealing ring 20 and the intermediate ring 30 is not affected by the exhaust passage. The exhaust passage includes exhaust grooves 33. In a possible implementation, the exhaust grooves 33 are formed along a circumferential direction of the outer sidewall of the sealing ring 20. In another implementation, as shown in FIG. 11 and FIG. 12, the exhaust grooves 33 are formed along a circumferential direction of the inner sidewall of the intermediate ring 30. When the inner cap 10 is closed, air between the sealing ring 20 and the intermediate ring 30 can be exhausted timely through the exhaust passage. When the inner cap is opened, outside air enters a region between the intermediate ring 30 and the sealing ring 20 through the exhaust passage, thereby eliminating a difference between internal and external pressures of the region between the sealing ring 20 and the intermediate ring 30, and facilitating smooth opening and closing of the inner cap 10.

[0034] As shown in FIG. 11 and FIG. 12, first sleeve 31 and second sleeve 32 are fixedly disposed on the intermediate ring 30. The second sleeve 32 is located outside the first sleeve 31. The sealing ring 20 is hermetically attached to an inner sidewall of the first sleeve 31. The second sleeve 32 is snap-fitted with the inner cap 10. Optionally, the exhaust passage is located between the sealing ring 20 and the inner sidewall of the first sleeve 31. Optionally, the exhaust grooves 33 are formed in the inner sidewall of the first sleeve 31. As shown in FIG. 6, a gap is formed between the first sleeve 31 and the second sleeve 32. The inner cap 10 is inserted into the gap. The outer sidewall of the inner cap 10 is snap-fitted with an inner sidewall of the second sleeve 32. The outer sidewall of the sealing ring 20 is hermetically attached to the inner sidewall of the first sleeve 31.

[0035] As shown in FIG. 1, FIG. 6 and FIG. 7, the inner cap 10 is rotatably disposed on the intermediate ring 30 through a first hinge assembly. The inner cap 10 is snap-fitted with the intermediate ring 30. The powder pan 40 is snap-fitted with the intermediate ring 30. The first hinge assembly includes first hinge 11, second hinge 35, and first hinge shaft 12. As shown in FIG. 9, the first hinge 11 is fixedly disposed on the inner cap 10. As shown in FIG. 11 and FIG. 12, the second hinge 35 is fixedly disposed on the intermediate ring 30. As shown in FIG. 6, in assembly, after the first hinge 11 and the second hinge 35 are docked, the first hinge shaft 12 penetrates into the first hinge 11 and the second hinge 35, so as to rotatably connect the inner cap 10 and the intermediate ring 30. As shown in FIG. 1, the inner cap 10 and the intermediate ring 30 are fixed in a manner such as a snap protrusion and a snap groove, or snap protrusions. The powder pan 40 and the intermediate ring 30 are fixed in a manner such as a snap protrusion and a snap groove, or snap protrusions.

[0036] As shown in FIG. 1 and FIG. 5, the cosmetic container further includes a base assembly and the outer cap 50. The cosmetic cartridge is detachably connected to the base assembly. The outer cap 50 is rotatably disposed on the base assembly through a second hinge assembly. The outer cap 50 can be closed onto the inner cap 10.

[0037] As shown in FIG. 1 and FIG. 5, the second hinge assembly includes third hinge 51, fourth hinge 71, and second hinge shaft 52. As shown in FIG. 5, the third hinge 51 is fixedly disposed on the outer cap 50. The fourth hinge 71 is fixedly disposed on outer base 70. As shown in FIG. 1, in assembly, after the third hinge 51 and the fourth hinge 71 are docked, the second hinge shaft 52 penetrates into the third hinge 51 and the fourth hinge 71, so as to rotatably connect the outer cap 50 and the outer base 70. Optionally, mirror 54 is fixedly attached to an inner side of the outer cap 50. A powder puff configured to dip the cosmetic material is disposed on the inner cap 10.

[0038] As shown in FIG. 1 and FIG. 5, the base assembly includes the outer base 70 and inner base 60 fixedly disposed in the outer base 70. The intermediate ring 30 is detachably disposed in the inner base 60. The inner base 60 and the outer base 70 are fixed in a manner such as a snap protrusion and a snap groove, or snap protrusions. The intermediate ring 30 and the inner base 60 are fixed in a manner such as a snap protrusion and a snap groove, or snap protrusions.

[0039] The inner cap 10, the intermediate ring 30, and the powder pan 40 constitute the cartridge. After the material in the powder pan 40 is used up, the cartridge is detached and replaced with a new one for continuous use. Therefore, other components in the cosmetic container can be reused, achieving energy conservation, environmental protection, and cost savings. In assembly, the cartridge assembly is disposed, the material is filled in the powder pan 40, and the filled cartridge assembly is disposed in the base assembly. When the material is filled, in case of a defect due to misoperation, only the powder pan 40 is detached independently, and replaced with a new one.

[0040] A lower surface of the powder pan 40 may be partially exposed or the lower surface of the powder pan 40 may be completely exposed. When the lower surface of the powder pan 40 is partially exposed, the powder pan 40 can be pushed up from a lower end of the container, such that the whole cartridge assembly is separated from the base assembly upward. When the lower surface of the powder pan 40 is completely exposed, the cartridge assembly can be directly pressed from a top of the container, such that the whole cartridge assembly is separated from the base assembly downward. Therefore, the cartridge assembly is detached conveniently.

[0041] In Embodiment 1, the outer cap 50 and the outer base 70 are fixed through a snap-fit assembly. As shown in FIG. 1 and FIG. 5, the snap-fit assembly includes button 72 and groove 53. The button 72 is disposed in the outer base 70. Hook 73 is disposed on the button 72. The groove 53 is formed in an inner sidewall of the outer cap 50. The hook 73 is clamped into the groove 53, so as to fix the outer cap 50 and the outer base 70. An elastic member is fixedly disposed on the button 72. In use, pressing the button 72 makes the elastic member deform, such that the hook 73 is separated from the groove 53 to open the outer cap 50. After the button is released, the button 72 is restored through the elastic member. Rear fastener 74 is disposed between the outer cap 50 and the outer base 70.

[0042] Embodiment 2: As shown in FIG. 15 and FIG. 16, the embodiment differs from Embodiment 1 in: The relief groove 22 is of a cylindrical annular structure. The relief groove 22 is coaxial with the sealing ring 20. As shown in FIG. 16, the relief groove 22 has an inverted U-shaped longitudinal cross-section, thereby being structurally simple and easy-to-machine.

[0043] In Embodiment 3 and Embodiment 4, the outer cap 50 and the outer base 70 are fixed through an attracting assembly. In Embodiment 3, as shown in FIG. 17, the attracting assembly includes first magnet 55 and second magnet 75. The first magnet 55 is disposed in the outer cap 50. The second magnet 75 is disposed in the outer base 70. The first magnet 55 and the second magnet 75 attract each other to fix the outer cap 50 and the outer base 70. Mesh fabric 36 is welded on the intermediate ring 30. The mesh fabric 36 is located on the powder pan 40. In the embodiment, the conventional snap-fit assembly is replaced with the first magnet 55 and the second magnet 75, such that the operation is more convenient.

[0044] In Embodiment 4, as shown in FIG. 18, the attracting assembly includes magnetic metal piece 56 and second magnet 75. The second magnet 75 is disposed in one of the outer cap 50 and the outer base 70, while the magnetic metal piece 56 is disposed in the other of the outer cap 50 and the outer base 70. The second magnet 75 and the magnetic metal piece 56 attract each other to fix the outer cap 50 and the outer base 70. The magnetic metal piece 56 is made of a ferromagnetic material. The ferromagnetic material includes iron, cobalt, nickel, etc. In the embodiment, the snap-fit assembly is replaced with the second magnet 75 and the magnetic metal piece 56. In FIG. 13, the magnetic metal piece 56 is disposed in the outer cap 50, and the second magnet 75 is disposed in the outer base 70. Certainly, the second magnet 75 may also be disposed in the outer cap 50, and the magnetic metal piece 56 may also be disposed in the outer base 70.

[0045] In the present disclosure, the outer cap 50 and the outer base 70 are fixed through the snap-fit assembly or fixed through the attracting assembly. Therefore, the outer cap 50 and the outer base 70 are connected simply and reliably, with low cost and convenience in use.

[0046] It should be noted that those of ordinary skill in the art can further make variations and improvements without departing from the conception of the present disclosure. These variations and improvements all fall within the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the appended claims.

Claims

1. An easy opening and closing cosmetic cartridge, comprising: an inner cap (10), an intermediate ring (30), and a powder pan (40), wherein the powder pan (40) is fixedly disposed in the intermediate ring (30); a sealing ring (20) is fixedly disposed on the inner cap (10); the sealing ring (20) is made of an elastic material; hardness of the sealing ring (20) is less than hardness of the intermediate ring (30); the sealing ring (20) is configured to seal the intermediate ring (30); a relief groove (22) is formed in the sealing ring (20); and when the inner cap (10) is opened and closed relative to the intermediate ring (30), the sealing ring (20) deforms toward the relief groove (22).

2. The easy opening and closing cosmetic cartridge according to claim 1, wherein the sealing ring (20) comprises an annular structure that is open at an upper end and a lower end; an inner sidewall of the sealing ring (20) is attached to an outer sidewall of the inner cap (10); a longitudinal cross-section of the inner sidewall of the sealing ring (20) comprises an arc-shaped segment (23) and a first straight segment (24) that are connected to each other; and the arc-shaped segment (23) is located above the first straight segment (24).

3. The easy opening and closing cosmetic cartridge according to claim 2, wherein a tangent line of the arc-shaped segment (23) is a straight line K; and an included angle between the straight line K and the first straight segment (24) is a, wherein a is an obtuse angle.

4. The easy opening and closing cosmetic cartridge according to claim 2, wherein the relief groove (22) comprises a first sidewall and a second sidewall; a longitudinal cross-section of the first sidewall comprises a second straight segment (25); a longitudinal cross-section of the second sidewall comprises a third straight segment (26); the second straight segment (25) is parallel to the first straight segment (24); the third straight segment (26) is parallel to a tangent line of the arc-shaped segment (23); and an extended line of the second straight segment (25) intersects with an extended line of the third straight segment (26).

5. The easy opening and closing cosmetic cartridge according to claim 2, wherein the relief groove (22) is of a cylindrical annular structure; and the relief groove (22) is coaxial with the sealing ring (20).

6. The easy opening and closing cosmetic cartridge according to claim 1, wherein the relief groove (22) is a blind groove; an upper end of the relief groove (22) is a sealed end; and a lower end of the relief groove (22) is an open end.

7. The easy opening and closing cosmetic cartridge according to claim 1, wherein a hermetically attached position is provided between the sealing ring (20) and the intermediate ring (30); the sealing ring (20) has a maximum outer diameter of d1; the intermediate ring (30) has a minimum inner diameter of d2; and both a maximum outer diameter position of the sealing ring (20) and a minimum inner diameter position of the intermediate ring (30) are located at the hermetically attached position, wherein the d1 is greater than the d2, and a difference between the d1 and the d2 is 0.1 mm to 0.5 mm.

8. The easy opening and closing cosmetic cartridge according to claim 1, wherein an outer sidewall of the sealing ring (20) extends outward along a radial direction to form an annular protrusion (21); an inner sidewall of the intermediate ring (30) is recessed inward to form an annular groove (34); the annular protrusion (21) is interference-fitted into the annular groove (34); and the annular protrusion (21) and the annular groove (34) form a hermetically attached position.

9. The easy opening and closing cosmetic cartridge according to any one of claims 1 to 8, wherein the sealing ring (20) is located on a lower end surface of the inner cap (10); and the inner cap (10) and the sealing ring (20) are integrally formed by two-shot molding.

10. The easy opening and closing cosmetic cartridge according to any one of claims 1 to 8, wherein when the inner cap (10) is closed onto the intermediate ring (30), an exhaust passage is formed between the sealing ring (20) and the intermediate ring (30); and the exhaust passage is configured to realize circulation of air inside and outside the intermediate ring (30).

11. The easy opening and closing cosmetic cartridge according to any one of claims 1 to 8, wherein a first sleeve (31) and a second sleeve (32) are fixedly disposed on the intermediate ring (30); the second sleeve (32) is located outside the first sleeve (31); the sealing ring (20) is hermetically attached to an inner sidewall of the first sleeve (31); and the second sleeve (32) is snap-fitted with the inner cap (10).

12. A cosmetic container, comprising: the cosmetic cartridge according to any one of claims 1 to 11; a base assembly, wherein the cosmetic cartridge is detachably connected to the base assembly; and an outer cap (50), wherein the outer cap (50) is rotatably disposed on the base assembly through a second hinge assembly, and the outer cap (50) is capable of being closed onto the inner cap (10).

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