Air-tight powder dispenser

Abstract

The application relates to airtight powder container, comprising an outer cover, an inner cover, an inner sieve and a base, the inner sieve is airtightly installed at the opening end of the base and is located between the inner cover and the base, the inner cover and the inner sieve are hinged through a hinge unit, the hinge unit is elastic so that the inner cover can move towards the inner sieve side when being forced, when the outer cover is covered on the base, the outer cover extrudes the inner cover so that the inner cover is tightly combined with the inner sieve. In the application, the inner cover and the inner sieve are hinged with each other, the inner cover and the inner sieve can be tightly combined together under the extrusion force of the outer cover, the airtightness of the inner sieve is guaranteed, and the volatile solvent in the cosmetic material in the base is effectively prevented from being volatilized.

Description

Technical Field

[0001] This application relates to the field of cosmetic containers, specifically to an airtight powder container. Background Technology

[0002] Cosmetics are usually stored in portable cosmetic cases. The traditional powder case structure is as follows: it includes a case body, an inner cup, an outer lid, a powder puff, and an inner lid. The inner cup is located inside the case body, and the powder puff is placed inside the inner cup. The inner lid and the outer lid are a single unit. When the outer lid is placed on the case body and screwed on, the inner lid is squeezed to seal the case body. However, the powder puff and the case body cannot be sealed, causing the volatile solvents in the powder to gradually evaporate through the powder puff, which in turn causes the cosmetics to harden and deteriorate, resulting in waste. Summary of the Invention

[0003] To overcome the above-mentioned defects, this application provides an airtight powder container, which has an inner cover and an inner screen that are hinged to each other. Under the squeezing force of the outer cover, the inner cover and the inner screen can be tightly fitted together, thereby ensuring the airtightness of the inner screen and effectively preventing the volatile solvents in the cosmetic material in the base from evaporating.

[0004] The technical solution adopted by this application to solve its technical problem is:

[0005] An airtight powder container includes an outer cover, an inner cover, an inner sieve, and a base. The inner sieve is airtightly installed at the open end of the base and is located between the inner cover and the base. The inner cover and the inner sieve are hinged together by a hinge unit. The hinge unit is elastic, allowing the inner cover to move toward the inner sieve when subjected to force. When the outer cover is closed on the base, the outer cover presses against the inner cover, causing the inner cover and the inner sieve to fit together airtightly.

[0006] Optionally, the hinge unit includes the hinge shaft, a lug, and an elastic element. The inner cover is provided with the hinge shaft, the inner screen is provided with an upper opening end and a lower opening end, and the lower opening end is provided with a channel for material to pass through. The upper opening end extends upward to form a lug. The lug is provided with a hinge hole and an opening that are interconnected. The hinge shaft is inserted into the hinge hole through the opening to hinge the inner cover and the inner screen. The lug is also provided with an elastic element for supporting the hinge shaft.

[0007] Optionally, the hinge hole and the opening are located outside or inside the upper opening end, the opening is located above or below the hinge hole, and the elastic element is located below the hinge shaft after the hinge shaft is inserted into the hinge hole.

[0008] Optionally, the elastic element is an elastic claw integrally formed with the lug, and the elastic claw is inclinedly arranged at the opening of the lug or arranged in the hinge hole.

[0009] Optionally, the elastic element is a spring or a soft rubber component, which is placed inside the lug.

[0010] Optionally, the outer diameter of the inner screen is larger than the inner diameter of the base, a raised ring is formed at the upper opening end of the inner screen, the raised ring is sleeved on the opening end of the base, and a soft rubber strip is provided between the inner screen and the base.

[0011] Optionally, the soft rubber strip is disposed between the upper side wall of the open end of the base and the lower side wall of the convex ring, or the soft rubber strip is disposed between the inner side wall of the open end of the base and the outer side wall of the inner screen.

[0012] Optionally, the inner cover is a disc-shaped structure with a chassis, the outer side wall of the inner cover is provided with a protrusion, the hinge shaft is disposed on the protrusion and there is a gap between the hinge shaft and the outer side wall of the inner cover, and a soft rubber layer is provided at the contact point between the inner cover and the inner screen.

[0013] Optionally, the inner wall of the opening end of the outer cover is provided with an internal thread, and the outer wall of the opening end of the base is provided with an external thread that mates with the internal thread.

[0014] Optionally, the outer cover and the base are connected by a snap-fit ​​or by magnetic force.

[0015] The beneficial effects of this application are:

[0016] 1) This application includes an outer cover, an inner cover, an inner sieve, and a base. The outer cover and the inner cover are two independently arranged components. The powder puff is placed in the inner cover, and the base is used to place cosmetic materials. The inner cover and the inner sieve are hinged together. An elastic element is provided in the semi-closed hinge hole of the inner sieve, which ensures the opening and closing function of the hinge. The inner cover also has a certain downward movement space. When the outer cover is closed and locked on the base, the inner cover is pressed towards the inner sieve under the action of the outer cover. This makes the contact surfaces of the inner cover and the inner sieve have sufficient compressive force to fit together tightly. This ensures the airtightness of the inner sieve at the discharge point, effectively prevents the volatile solvents in the cosmetic materials in the base from evaporating, and prevents the powder materials from scattering everywhere, thus extending the service life of the cosmetic materials.

[0017] 2) In this application, the outer diameter of the inner screen is slightly larger than the inner diameter of the base. After the inner screen is installed in the base, the inner screen and the base are interference fit. In addition, a soft rubber strip is provided at the contact point between the inner screen and the base. Thus, there are two sealing structures between the inner screen and the base, which ensures the airtightness between the inner screen and the base and further improves the overall sealing performance of the container.

[0018] 3) Because the inner cover and the inner screen are connected by a hinge, the inner cover does not need to be removed during use to prevent it from getting dirty; and when not in use, the powder puff can be placed in the inner cover without contacting the cosmetics, which can prevent the cosmetics from soaking the powder puff too much. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this application;

[0020] Figure 2 This is a schematic diagram of the inner cover and inner screen in this application;

[0021] Figure 3 This is a schematic diagram of the structure of the inner screen and the base in this application;

[0022] Figure 4 This is a partial structural schematic diagram of Embodiment 1 in this application;

[0023] Figure 5 This is a partial structural schematic diagram of Embodiment 2 in this application;

[0024] Figure 6 This is a partial structural schematic diagram of Embodiment 3 in this application;

[0025] Figure 7 This is a partial structural schematic diagram of Embodiment 4 in this application;

[0026] Figure 8 This is a partial structural schematic diagram of Embodiment 5 in this application;

[0027] Figure 9 This is a partial structural schematic diagram of Embodiment 6 in this application;

[0028] Figure 10 This is a partial structural schematic diagram of Embodiment 7 in this application;

[0029] Figure 11 This is a partial structural schematic diagram of Embodiment 8 in this application;

[0030] Figure 12 This is a partial structural schematic diagram of Embodiment 9 in this application;

[0031] In the diagram: 10-outer cover, 11-internal thread, 12-gasket, 20-inner cover, 21-hinge shaft, 22-protrusion, 23-edge, 24-soft rubber layer, 30-inner screen, 31-lug, 32-hinge hole, 33-elastic claw, 34-spring, 35-soft rubber part, 36-protruding ring, 40-base, 41-external thread, 50-mesh, 51-inner ring, 60-soft rubber strip. Detailed Implementation

[0032] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] like Figure 1-12As shown, an airtight powder container includes an outer cover 10, an inner cover 20, an inner sieve 30, and a base 40. The inner sieve 30 is airtightly installed at the open end of the base 40 and is located between the inner cover 20 and the base 40. The inner cover 20 and the inner sieve 30 are hinged together by a hinge unit. The hinge unit is elastic, allowing the inner cover 20 to move toward the inner sieve 30 when subjected to force. When the outer cover 10 is closed on the base 40, the outer cover 10 presses the inner cover 20 to make the inner cover 20 and the inner sieve 30 fit together airtightly. In this application, the outer cover 10 and the inner cover 20 are two independent components. The inner cover 20 can hold a powder puff, and the base 40 is used to store cosmetic materials. The inner cover 20 is placed inside the inner sieve 30, and the connection between the inner cover and the inner sieve is a flexible hinge. Therefore, the inner cover has a certain downward movement space. The connection between the inner cover and the inner sieve provides partial support for the inner cover, increasing its stability. When the outer cover 10 is closed and locked onto the base 40, the inner cover 20 is pressed towards the inner sieve 30 under the action of the outer cover 10, causing the inner cover 20 and the inner sieve 30 to... The contact surfaces are tightly fitted together with sufficient pressure, ensuring the airtightness of the inner screen. This effectively prevents volatile solvents in the cosmetic materials inside the base from evaporating and also prevents powder from scattering, extending the lifespan of the cosmetic materials. In use, after opening the outer cover, remove the powder puff. Rotate the inner cover 20 around the hinge between the inner cover and the inner screen to open it. Use the powder puff to apply the cosmetic materials from the base. Since the inner cover and inner screen are connected by a hinge, it is not necessary to remove the inner cover during use, preventing it from becoming dirty. Furthermore, when not in use, the powder puff is placed inside the inner cover without contacting the cosmetic materials, preventing excessive soaking of the puff.

[0036] like Figure 3As shown, the inner cover 20 is provided with a hinge shaft 21, the inner screen 30 is provided with an upper opening end and a lower opening end, and the lower opening end is provided with a channel for material to pass through. The upper opening end extends upward to form a lug 31. The lug 31 is provided with a hinge hole 32 and an opening that are interconnected. The hinge shaft 21 slides into the hinge hole 32 through the opening to hinge the inner cover 20 and the inner screen 30. The lug 31 is also provided with an elastic element for supporting the hinge shaft 21. The hinge unit includes the hinge shaft 21, the lug 31 and the elastic element. The inner screen is an annular structure including an upper opening and a lower opening. Cosmetic materials in the base 40 are discharged through the channel on the inner screen for user use. The hinge shaft 21 on the inner cover is inserted into the hinge hole 32 from the opening of the lug 31. The elastic element supports the hinge shaft 21. The elasticity of the elastic element ensures the opening and closing function of the hinge unit and ensures that the inner cover has a certain downward movement space. The elastic element can be part of the lug 31, that is, the lug and the elastic element are integrated, or the elastic element and the lug 31 are two independent parts. When the outer cover presses the inner cover, the inner cover presses down on the elastic element and moves downward, so that the inner cover and the inner screen fit tightly to form a sealing effect. The inner screen material is PP (Polypropylene) or PDTA (copolymer polyester).

[0037] In Example 1, as Figure 4 As shown, the hinge hole 32 and the opening are located outside or inside the upper opening end, and the opening is located above or below the hinge hole 32. When the hinge shaft 21 is inserted into the hinge hole, the elastic element is located below the hinge shaft 21. The hinge hole 32 and the opening are located outside the upper opening end, and the opening is located below the hinge hole. The hinge shaft 21 is inserted into the hinge hole 32 after pressing the elastic element from the lower opening outside the inner screen. In embodiment 2, as shown... Figure 5 As shown, the hinge hole 32 and the opening are located inside the upper opening end, and the opening is located below the hinge hole. The hinge shaft 21 is inserted into the hinge hole 32 after pressing the elastic element from the lower opening inside the inner screen. In embodiment 3, as shown... Figure 6 As shown, the hinge hole 32 and the opening are located outside the upper opening end, and the opening is located above the hinge hole. The hinge shaft 21 is inserted into the hinge hole 32 from the upper opening on the upper side of the inner screen.

[0038] In embodiments 1-3, the elastic element is an elastic claw 33 integrally formed with the lug 31. The elastic claw 33 is obliquely arranged at the opening of the lug 31 or arranged inside the hinge hole 32. The elastic element is always an elastic claw 33. In embodiments 1 and 2, as shown... Figure 4 and Figure 5 As shown, the opening is located below the hinge hole 32. Two elastic claws 33 are arranged horizontally on the lug, forming an opening between them. Both elastic claws are inclined to the horizontal plane, facilitating the hinge shaft 21 to pass through the opening and engage with the hinge hole 32. In embodiment 3, as shown... Figure 6 As shown, the opening is located above the hinge hole 32. The lug is provided with two elastic claws 33 arranged vertically. The upper elastic claw is located at the opening, and the lower elastic claw is located inside the hinge hole. Similarly, the elastic claws are arranged at an angle to the horizontal plane. When the hinge shaft 21 slides into the hinge hole 32 through the opening along the upper elastic claw, the hinge shaft 21 is supported by the lower elastic claw 33. Because the elastic claws are arranged at an angle and are elastic, when the inner cover 20 is subjected to the downward pressure of the outer cover 10, the hinge shaft 21 on the inner cover presses down on the elastic claw and moves down as a whole, so that the contact surface of the inner cover 20 and the inner screen 30 are tightly fitted together.

[0039] The elastic element is a spring 34 or a soft rubber component 35, which is placed inside the lug 31. In embodiment 4, as... Figure 7 As shown, the elastic element is a spring 34, which is placed in the hinge hole 32 of the lug and is located below the hinge axis; in embodiment 5, as Figure 8 As shown, the elastic element is a soft rubber part 35, which is placed in the hinge hole 32 of the lug and is located below the hinge shaft. In embodiments 4 and 5, the opening is located above the hinge hole 32. Similarly, when the inner cover 20 is subjected to downward pressure from the outer cover 10, the hinge shaft 21 on the inner cover presses down on the spring 34 or the soft rubber part 35 and moves downward as a whole, so that the contact surface between the inner cover 20 and the inner screen 30 is tightly fitted together.

[0040] like Figure 3 As shown, the outer diameter of the inner screen 30 is larger than the inner diameter of the base 40. A raised ring 36 is formed at the upper open end of the inner screen 30, and the raised ring 36 is tightly fitted onto the open end of the base 40. A soft rubber strip 60 is provided between the inner screen 30 and the base 40. The outer diameter of the inner screen is slightly larger than the inner diameter of the base, so that after the inner screen is installed in the base, the inner screen and the base are interference-fitted, ensuring the airtightness between them. The soft rubber strip at the contact point between the inner screen and the base also provides an airtight effect. The soft rubber strip 60 is made of TPEE (thermoplastic polyester elastomer), and the hardness of the soft rubber strip is less than that of the inner screen and the base.

[0041] The soft rubber strip 60 is disposed between the upper side wall of the open end of the base and the lower side wall of the convex ring 36, or the soft rubber strip 60 is disposed between the inner side wall of the open end of the base and the outer side wall of the inner screen 30. Optionally, the soft rubber strip 60 and the base 40 are integrally molded parts, and the soft rubber strip 60 and the base 40 are formed by two-color molding, as in embodiment 6. Figure 9 As shown, the soft rubber strip is located on the upper side wall of the base and is integrally formed with the base. In embodiment 7, as... Figure 10As shown, the soft rubber strip is located on the inner wall of the base and is integrally formed with the base; optionally, the soft rubber strip 60 and the inner screen 30 are integrally formed, and the soft rubber strip 60 and the inner screen 30 are formed by a two-color mold, as in embodiment 8. Figure 11 As shown, the soft rubber strip is located on the lower side wall of the inner screen and is integrally formed with the inner screen. In Example 9, as... Figure 12 As shown, the soft rubber strip is located on the outer side wall of the inner screen and is integrally formed with the inner screen.

[0042] like Figure 2 As shown, the inner cover 20 is a disc-shaped structure with a base. A protrusion 22 is provided on the outer wall of the inner cover 20. A hinge shaft 21 is mounted on the protrusion 22, and there is a gap between the hinge shaft 21 and the outer wall of the inner cover 20. A soft rubber layer 24 is provided at the contact point between the inner cover 20 and the inner screen 30. An edge 23 is formed radially outward from the upper end of the inner cover 20. A protrusion 22 is provided on the outer wall of the inner cover 20, and the hinge shaft 21 is mounted on the protrusion 22. A ring of soft rubber layer 24 can be provided at the edge where the inner cover 20 contacts the inner screen 30, or... Figure 2 The lower side wall of the entire chassis of the inner cover shown is provided with a soft rubber layer. The soft rubber layer 24 can be intermittent dot-like or continuous layer-like. The soft rubber layer 24 can also be a surface structure, that is, the contact area between the inner cover and the inner sieve is entirely provided with a soft rubber layer, or it can be a ring structure, that is, the contact area between the inner cover and the inner sieve is provided with several ring-shaped soft rubber layers. The soft rubber layer 24 can be integrally formed with the inner cover 20 through a two-color mold, or the soft rubber layer and the inner sieve can be integrally formed with a two-color mold, as long as the flexible contact between the inner cover and the inner sieve is achieved. Optionally, a mesh 50 is provided at the lower opening end of the inner sieve 30. The mesh 50 is welded to the bottom of the inner sieve 30 through an inner ring 51. The mesh 50 is provided with several powder outlet holes. The soft rubber layer on the inner cover is tightly attached to the mesh 50, thereby ensuring that there is sufficient pressure at the powder outlet holes on the inner cover and the inner sieve to ensure its sealing function.

[0043] The inner cover 20 is used to store the powder puff. The hinge shaft 21 is arranged roughly parallel to the outer wall of the inner cover 20. There is a gap between the two to facilitate the insertion of the hinge shaft into the lug of the inner screen 30. When sealing, the soft rubber layer 24 is directly attached to the inner screen and the mesh, which improves the sealing effect. The inner cover is made of PDTA (copolymer polyester) and the soft rubber layer is made of TPEE (thermoplastic polyester elastomer); or the inner cover is made of PP (polypropylene) and the soft rubber layer is made of PE (polyethylene). The hardness of the soft rubber layer 24 is less than that of the inner cover and the inner screen.

[0044] In some embodiments, the inner wall of the opening end of the outer cover 10 is provided with an internal thread 11, and the outer wall of the opening end of the base 40 is provided with an external thread 41 that mates with the internal thread 11. A gasket 12 is provided between the outer cover 10 and the inner cover 20. The outer cover and the base are fixed by screws or by hinges. The outer cover can be made of PETG (Poly(ethylene terephthalate co-1,4-cylclohexylenedimethylene terephthalate), the base can be made of PCTA (copolymer polyester), and the gasket can be made of PEFOAM (Polyethylene Foam).

[0045] In other embodiments, the outer cover 10 and the base 40 are connected by a snap-fit ​​or by magnetic force. Specifically, the snap-fit ​​connection can be achieved by having a protruding ring and a slot on the outer cover 10 and the base 40 respectively, engaging with each other. During assembly, the user directly applies force to snap the protruding ring between the outer cover and the base into the slot to connect them. Alternatively, the snap-fit ​​connection can be achieved by having a button and a ring that engage with each other between the outer cover and the base. During assembly, the button snaps into the ring to connect them. When in use, pressing the button disengages the button from the ring, separating them. Magnets that attract each other, or a magnet and an iron sheet, can also be provided on the outer cover and the base respectively, allowing them to be connected by magnetic force during assembly.

[0046] The operation process of this application is as follows: When in use, after unscrewing the outer cover 10, take out the powder puff, rotate the inner cover 20 around the hinge between the inner cover and the inner screen at a certain angle to open the inner cover 20. Use the powder puff to pick up the cosmetic material in the base to complete the makeup process. After use, rotate the inner cover 20 in the opposite direction around the hinge to place the inner cover in the inner screen 30, then put the outer cover 10 on and screw the outer cover tightly onto the base. The outer cover 10 presses the inner cover 20 so that the soft rubber layer 24 of the inner cover 20 fits tightly with the inner screen 30, thus sealing the material outlet channel between the inner cover and the inner screen. Moreover, the inner screen 30 and the base 40 are interference-fitted, and a soft rubber strip is provided at the contact point between the two, thereby ensuring the airtightness between the inner screen 30 and the base 40.

[0047] 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. An airtight powder container, characterized in that: The system includes an outer cover (10), an inner cover (20), an inner screen (30), and a base (40). The inner screen (30) is airtightly installed at the open end of the base (40) and is located between the inner cover (20) and the base (40). The inner cover (20) and the inner screen (30) are hinged together by a hinge unit. The hinge unit is elastic, allowing the inner cover (20) to move toward the inner screen (30) when subjected to force. When the outer cover (10) is closed on the base (40), the outer cover (10) presses the inner cover (20) to make the inner cover (20) and the inner screen (30) fit together airtightly. The hinge unit includes a hinge shaft (21), a lug (31), and an elastic element. The inner cover (20) is provided with the hinge shaft (21). The inner screen (30) is provided with an upper opening end and a lower opening end, and the lower opening end is provided with a channel for material to pass through. The upper opening end extends upward to form the lug (31). The lug (31) is provided with a hinge hole (32) and an opening that are interconnected. The hinge shaft (21) is inserted into the hinge hole (32) through the opening to hinge the inner cover (20) and the inner screen (30). The lug (31) is also provided with the elastic element for supporting the hinge shaft (21). The hinge hole (32) and the opening are located outside or inside the upper opening end. The opening is located above or below the hinge hole (32). When the hinge shaft (21) is inserted into the hinge hole, the elastic element is located below the hinge shaft (21). The elastic element is an elastic claw (33) integrally formed with the lug (31), and the elastic claw (33) is inclinedly arranged at the opening of the lug (31) or arranged in the hinge hole (32); or, the elastic element is a spring (34) or a soft rubber part (35), and the spring or soft rubber part is placed in the lug (31).

2. The airtight powder container according to claim 1, characterized in that: The outer diameter of the inner screen (30) is larger than the inner diameter of the base (40). A raised ring (36) is formed at the upper opening end of the inner screen (30). The raised ring (36) is sleeved on the opening end of the base (40). A soft rubber strip (60) is provided between the inner screen (30) and the base (40).

3. The airtight powder container according to claim 2, characterized in that: The soft rubber strip (60) is disposed between the upper side wall of the opening end of the base and the lower side wall of the convex ring (36), or the soft rubber strip (60) is disposed between the inner side wall of the opening end of the base and the outer side wall of the inner screen (30).

4. The airtight powder container according to claim 1, characterized in that: The inner cover (20) is a disc-shaped structure with a base. A protrusion (22) is provided on the outer side wall of the inner cover (20). The hinge shaft (21) is provided on the protrusion (22) and there is a gap between the hinge shaft (21) and the outer side wall of the inner cover (20). A soft rubber layer (24) is provided at the contact point between the inner cover (20) and the inner screen (30).

5. The airtight powder container according to claim 1, characterized in that: The inner wall of the opening end of the outer cover (10) is provided with an internal thread (11), and the outer wall of the opening end of the base (40) is provided with an external thread (41) that mates with the internal thread (11).

6. The airtight powder container according to claim 1, characterized in that: The outer cover (10) and the base (40) are connected by a snap fastener or by magnetic force.

Images