Secondary pollution prevention cosmetic bottle cap

Abstract

The application discloses a secondary pollution prevention cosmetic bottle cap and belongs to the technical field of daily necessities packaging caps. The secondary pollution prevention cosmetic bottle cap comprises a soft bottle, a middle cap and an upper cap. The middle cap is internally fixed with a partition plate. The partition plate divides the middle cap into a cosmetic use area above the partition plate and a cosmetic isolation area below the partition plate. A one-way extrusion hole structure is arranged on the partition plate. A small amount of cosmetics can be extruded into the cosmetic use area. The cosmetics can be taken by fingers. The amount of cosmetics in the cosmetic use area is small, and the cosmetics can be used at one time. The cosmetics are prevented from being polluted. The one-way extrusion hole structure prevents the polluted cosmetics in the cosmetic use area from flowing back into the soft bottle, thereby preventing the secondary pollution of the cosmetics in the soft bottle. The liquid in the cosmetic use area cannot flow back. When cleaning, the liquid can be directly washed with clean water, and the cleaning is convenient.

Description

Technical Field

[0001] This application relates to the field of packaging cap technology for daily necessities, and in particular to a cosmetic bottle cap that prevents secondary pollution. Background Technology

[0002] Cosmetics are mostly viscous liquids such as milk or cream, which are easily contaminated when they come into contact with other objects.

[0003] Open-top packaging for daily necessities has a large opening, which makes it easy for users to contaminate the cosmetics inside the bottle with their fingers when taking them out (and after a period of time, this can lead to excessive levels of microorganisms).

[0004] Small-hole extrusion packaging for daily necessities (soft bottles) is prone to accumulating cosmetic residue at the bottle opening. The cosmetic residue at the bottle opening is easily contaminated, which is not only difficult to clean, but also affects subsequent use, causing secondary contamination of the cosmetic.

[0005] Neither of the above two types of daily necessities packaging can prevent cosmetics from being contaminated secondary, which means that opened cosmetics cannot be stored for a long time. This is a great limitation for cosmetics that can be used for a long time. Therefore, the present invention provides a cosmetic bottle cap that prevents secondary contamination. Summary of the Invention

[0006] The purpose of this application is to isolate the area of ​​use from the area where cosmetics are stored inside the bottle, to prevent secondary contamination of the cosmetics inside the bottle, and to solve the problem that cosmetics cannot be stored for a long time after opening.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0008] A cosmetic bottle cap designed to prevent secondary contamination, comprising:

[0009] A soft bottle, wherein the top of the soft bottle is provided with a threaded neck;

[0010] The middle cover has its bottom threadedly connected to the threaded bottle neck, and a partition plate is fixed to the inside of the middle cover. The partition plate divides the interior of the middle cover into a cosmetic use area above the partition plate and a cosmetic isolation area below the partition plate. The cosmetic isolation area is connected to the cosmetic storage area inside the soft bottle.

[0011] The top cover is threadedly installed with the middle cover or with the soft bottle. The top of the top cover is recessed downward to form a concave sealing disc, which corresponds to the top port of the middle cover. After the top cover is installed, the concave sealing disc seals and blocks the top port of the middle cover.

[0012] The partition plate is provided with a one-way extrusion hole structure, which allows cosmetics in the cosmetic isolation area to enter the cosmetic use area through the one-way extrusion hole structure.

[0013] As a preferred embodiment, the middle cover includes: a first cylindrical part, a mounting cylindrical part, and a threaded connection part that are fixedly connected from top to bottom, and the partition plate is disposed at the junction of the mounting cylindrical part and the threaded connection part;

[0014] The first cylindrical part, the mounting cylindrical part, the threaded connection part, and the partition plate are integrated into one structure.

[0015] Further preferably, the threaded connection part has an external thread structure, the threaded bottle mouth has an internal thread structure, and the threaded connection part is threadedly installed on the inside of the threaded bottle mouth.

[0016] Further preferably, the outer side of the mounting cylinder is provided with an external thread, and the inner side of the upper cover is threadedly installed with the external thread.

[0017] Further preferably, the bottom of the top cover is provided with a skirt, and the side of the soft bottle is provided with a step corresponding to the skirt. After the top cover is installed, the skirt and the step form a second sealing structure.

[0018] As another preferred embodiment, the top of the cover has an annular opening, and an elastic ring is glued inside the annular opening, with the elastic ring extending beyond the annular opening.

[0019] As another preferred embodiment, the outer side of the top cover is provided with an anti-slip portion.

[0020] As another preferred embodiment, an annular mounting area is formed on the inner side of the mounting cylinder, the unidirectional extrusion hole structure is located on the inner side of the annular mounting area, and a filler and a limiting member are also provided on the inner side of the annular mounting area.

[0021] The unidirectional extrusion hole structure includes: a through hole formed on a partition plate, a cylindrical body extending upward along the outer contour of the through hole from the top of the partition plate, and a unidirectional plug installed on the cylindrical body;

[0022] The filler is used to fill the area outside the one-way plug within the annular installation area, and the limiting member is used to keep the positions of the limiting member and the one-way plug fixed.

[0023] Further preferably, the unidirectional plug includes:

[0024] The housing has at least one overflow hole at one end facing the mounting cylinder, and the other end facing away from the mounting cylinder is open. The bottom of the housing has a mounting hole, which is fitted onto the cylinder. An undercut is fixedly connected to the cylinder above the bottom plate of the housing.

[0025] A folding plate, one side of which is fixedly connected to the side wall of the end of the housing opposite to the mounting cylinder, and the folding plate has a stop portion that elastically presses downward against the top port of the cylinder.

[0026] Further preferably, the filler is arc-shaped, the number of fillers is the same as the number of unidirectional extrusion holes, a positioning port is provided on the inner side of the filler, the limiting member is annular, a positioning member corresponding to the positioning port is fixedly connected to the bottom of the limiting member, the height of the filler is the same as the height of the unidirectional plug, a gap is formed between the top of the filler and the unidirectional plug and the inner top of the annular installation area, and the limiting member is installed inside the gap.

[0027] Compared with the prior art, the beneficial effects of this application are as follows:

[0028] (1) In this invention, a structure consisting of a middle cover and a top cover is designed. A partition plate is fixed on the inner side of the middle cover. The partition plate divides the interior of the middle cover into a cosmetic use area above the partition plate and a cosmetic isolation area below the partition plate. A one-way extrusion hole structure is provided on the partition plate. When in use, a small amount of cosmetic can be squeezed into the cosmetic use area. The user can use their fingers to take the cosmetic. Since the amount of cosmetic in the cosmetic use area is small, it can be used up in one go (or in a short time), avoiding contamination of the cosmetic. The design of the one-way extrusion hole structure prevents contaminated cosmetic in the cosmetic use area from flowing back into the soft bottle and causing secondary contamination of the cosmetic in the soft bottle. In addition, the design of the one-way extrusion hole structure prevents the liquid in the cosmetic use area from flowing back. When cleaning, it can be directly rinsed with water, which is more convenient. The design of this cosmetic bottle cap has a significant promoting effect on cosmetics that can be used for a long time.

[0029] (2) In this invention, by designing the one-way plug as an independent component and installing it on the inside of the middle cover, both the middle cover and the one-way plug are very simple and easy to manufacture. Attached Figure Description

[0030] Figure 1 This is a 3D schematic diagram of the cosmetic bottle cap designed to prevent secondary contamination.

[0031] Figure 2 This is an exploded image of the cosmetic bottle cap designed to prevent secondary contamination.

[0032] Figure 3 This is a front view of the cosmetic bottle cap designed to prevent secondary contamination.

[0033] Figure 4 for Figure 3 A sectional view of the section line at point CC.

[0034] Figure 5 for Figure 4 Enlarged view of section B in the middle.

[0035] Figure 6This is a side view of the cosmetic bottle cap designed to prevent secondary contamination.

[0036] Figure 7 for Figure 6 A sectional view of the section line at point DD.

[0037] Figure 8 for Figure 7 A magnified view of a portion of point E in the middle.

[0038] Figure 9 This is a three-dimensional schematic diagram of the middle cap of the cosmetic bottle cap designed to prevent secondary contamination.

[0039] Figure 10 This is a three-dimensional schematic diagram of the one-way plug, filler, and limiting component of the cosmetic bottle cap designed to prevent secondary contamination.

[0040] Figure 11 This is a three-dimensional schematic diagram of the one-way plug of the cosmetic bottle cap designed to prevent secondary contamination.

[0041] Figure 12 This is a three-dimensional schematic diagram of the machining of a unidirectional plug.

[0042] Figure 13 This is a three-dimensional schematic diagram of the top cover of the cosmetic bottle cap designed to prevent secondary contamination.

[0043] In the diagram: 1. Soft bottle; 101. Concave conical part; 2. Threaded bottle neck; 3. Top cover; 301. Concave sealing disc; 302. Skirt; 303. Anti-slip part; 304. Annular opening; 305. Elastic ring; 4. Middle cover; 401. Through hole; 402. Cylinder body; 403. Inverted fastener; 404. First cylinder part; 405. Mounting cylinder part; 406. Threaded connection part; 407. One-way plug; 407a. Box shell; 407b. Folding plate; 407c. Mounting hole; 407d. Overflow hole; 408. Filler; 408a. Positioning port; 409. Limiting element; 409a. Positioning element; 4010. External thread part; a. Divider plate. Detailed Implementation

[0044] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0045] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0046] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0047] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0048] like Figures 1-13 The cosmetic bottle cap shown includes: a soft bottle 1, a middle cap 4, and a top cap 3.

[0049] The soft bottle 1 is used to store cosmetics; that is, the inside of the soft bottle 1 is the cosmetic storage area. The top of the soft bottle 1 has a threaded bottle neck 2, and the bottom of the middle cover 4 is threadedly connected to the threaded bottle neck 2. A partition plate a is fixed to the inside of the middle cover 4. The partition plate a divides the inside of the middle cover 4 into a cosmetic use area above the partition plate a and a cosmetic isolation area below the partition plate a. The cosmetic isolation area is connected to the cosmetic storage area inside the soft bottle 1, so that the cosmetics stored inside the soft bottle 1 can directly enter the cosmetic isolation area. The partition plate a isolates the cosmetic storage area from the outside world, preventing external contaminants from entering the inside of the soft bottle 1.

[0050] In this solution, the partition plate a is provided with a one-way extrusion hole structure, which allows cosmetics in the cosmetic isolation area to enter the cosmetic use area through the one-way extrusion hole structure. During this process, the cosmetic flow direction is unidirectional, and the extruded cosmetics will not flow back into the soft bottle 1 from the one-way extrusion hole structure, thereby avoiding secondary contamination of the cosmetics stored in the cosmetic storage area.

[0051] The amount of cosmetic extruded into the cosmetic application area through the one-way extrusion hole structure is relatively small, which is enough for a single use (or for a period of time). If the cosmetic in the application area becomes contaminated, this part can be cleaned out directly. Moreover, because of the one-way extrusion hole structure, the liquid in the cosmetic application area will not flow back, and it can be rinsed directly with water, making cleaning convenient.

[0052] The top cover 3 and the middle cover 4 are threaded together (shown in the diagram: the top cover 3 and the middle cover 4 are threaded together), or the top cover 3 is threaded together with the soft bottle 1. The top of the top cover 3 is recessed downward to form a concave sealing disc 301. The concave sealing disc 301 corresponds to the top port of the middle cover 4. After the top cover 3 is installed, the concave sealing disc 301 seals and blocks the top port of the middle cover 4, so that the cosmetic storage area also forms a sealed structure after the top cover 3 is installed, thus preventing cosmetic leakage and contamination in the cosmetic storage area.

[0053] During production, cosmetics are filled into the soft bottle 1, then the middle cap 4 is threaded on, and then the top cap 3 is threaded on. The middle cap 4 blocks the top of the threaded bottle opening 2 of the soft bottle 1, thus forming a seal inside the soft bottle 1.

[0054] When using the product, the user first inverts the soft bottle 1, allowing the cosmetics to flow downwards to the threaded bottle neck 2. Then, the user squeezes the soft bottle 1 to allow some of the cosmetics to enter the usage area through the one-way extrusion hole structure. The user then flips the soft bottle 1 upright, opens the top cap 3, and takes the cosmetics from the usage area.

[0055] In one embodiment, a concave conical portion 101 that is recessed into the bottom of the soft bottle 1 can be provided, which is beneficial for the cosmetics inside the soft bottle 1 to be concentrated in the upper half of the soft bottle 1 (soft bottle 1 in the upright position).

[0056] In one embodiment, the middle cover 4 includes: a first cylindrical part 404, a mounting cylindrical part 405, and a threaded connection part 406, which are fixedly connected from top to bottom, and a partition plate a is disposed at the junction of the mounting cylindrical part 405 and the threaded connection part 406.

[0057] The first cylindrical part 404, the mounting cylindrical part 405, the threaded connection part 406, and the partition plate a are an integral structure, and the middle cover 4 can be integrally molded by injection molding process (the middle cover 4 is made of plastic).

[0058] In one embodiment, the threaded connection part 406 has an external thread structure, and the threaded bottle mouth 2 has an internal thread structure. The threaded connection part 406 is threadedly installed on the inner side of the threaded bottle mouth 2.

[0059] Alternatively, the threaded connection part can be internally threaded, while the threaded bottle mouth has an externally threaded structure, with the threaded connection part threaded on the outside of the threaded bottle mouth (not shown in the attached diagram).

[0060] In one embodiment, an external threaded portion 4010 is provided on the outer side of the mounting cylinder portion 405, and the inner side of the upper cover 3 is threadedly installed with the external threaded portion 4010, that is, the upper cover 3 and the middle cover 4 are threadedly installed.

[0061] In one embodiment, the bottom of the top cover 3 is provided with a skirt 302, and the side of the soft bottle 1 is provided with a step portion corresponding to the skirt 302. After the top cover 3 is installed, the skirt 302 and the step portion form a second sealing structure to prevent external dust from entering between the top cover 3 and the middle cover 4 when carrying.

[0062] A first sealing structure is formed at the threaded connection between the upper cover 3 and the middle cover 4, and a second sealing structure is formed at the skirt 302 and the step portion, thereby reducing the risk of accidental leakage of cosmetics.

[0063] In one embodiment, the top of the cover 3 has an annular opening 304, and an elastic ring 305 is glued inside the annular opening 304. The elastic ring 305 is higher than the annular opening 304. When the soft bottle 1 is inverted, it can be knocked and vibrated downwards several times. The elastic ring 305 can hit the table downwards to make the cosmetic flow into the threaded bottle mouth 2 of the soft bottle.

[0064] In one embodiment, the outer side of the top cover 3 is provided with an anti-slip part 303 to facilitate the user to rotate the top cover 3.

[0065] In one embodiment, an annular mounting area is formed on the inner side of the mounting cylinder 405, a unidirectional extrusion hole structure is located on the inner side of the annular mounting area, and a filler 408 and a limiting member 409 are also provided on the inner side of the annular mounting area.

[0066] The one-way extrusion orifice structure includes: a through hole 401 formed on a partition plate a; a cylindrical body 402 extending upward from the top of the partition plate a along the outer contour of the through hole 401; and a one-way plug 407 mounted on the cylindrical body 402. The one-way plug 407 elastically squeezes the top port of the cylindrical body 402. When there is upward liquid pressure, it can push the one-way plug 407 to move or deform, causing the top port of the cylindrical body 402 to open, so that the cosmetics inside the soft bottle 1 can enter the cosmetics usage area through the one-way extrusion orifice structure. After opening the top cover 3, the cosmetics can be taken out from the cosmetics usage area with fingers.

[0067] The filler 408 is used to fill the area outside the one-way plug 407 within the annular installation area, that is, to fill some dead corner areas within the annular installation area. If cosmetics enter the dead corner areas within the annular installation area, it is difficult to clean them. The filler 408 occupies this area. The limiting member 409 is used to keep the limiting member 409 and the one-way plug 407 in a fixed position, so that the limiting member 409 and the one-way plug 407 are stably installed.

[0068] In one embodiment, the one-way plug 407 includes: a housing 407a and a folding plate 407b.

[0069] The end of the housing 407a facing the mounting cylinder 405 has at least one overflow hole 407d, which faces the central area of ​​the mounting cylinder 405, making it easy for the user to remove any overflowing cosmetics. The end of the housing 407a away from the mounting cylinder 405 is open. The bottom of the housing 407a has a mounting hole 407c, which is fitted onto the cylinder 402. A buckle 403 is fixedly connected to the cylinder 402 above the bottom plate of the housing 407a. The mounting hole 407c of the housing 407a is locked onto the cylinder 402 from above, and the mounting hole 407c passes over the buckle 403. The buckle 403 fixes the housing 407a and the cylinder 402 together. One side of the folding plate 407b is fixedly connected to the side wall of the end of the housing 407a away from the mounting cylinder 405. The folding plate 407b has a stop that elastically presses down on the top port of the cylinder 402.

[0070] like Figure 11 As shown, the folding plate 407b is an approximately L-shaped arc structure. The folding plate 407b bends into the interior of the housing 407a. The folding plate 407b has a tendency to elastically press downward. After the one-way plug 407 is installed on the inner side of the annular installation area, the bottom of the folding plate 407b abuts against the top port of the cylinder 402.

[0071] like Figure 12 As shown, the structure is easy to injection mold (the one-way plug 407 is made of plastic). After molding, the folding plate 407b is bent into the inside of the housing 407a. The folding plate 407b has a spring-like force.

[0072] In one embodiment, the filler 408 is arc-shaped, and the number of fillers 408 is the same as the number of unidirectional extrusion hole structures. Two fillers 408 and two unidirectional extrusion hole structures are provided. A positioning port 408a is provided on the inner side of the filler 408. The limiting member 409 is annular, and a positioning member 409a corresponding to the positioning port 408a is fixedly connected to the bottom of the limiting member 409. The height of the filler 408 is the same as the height of the unidirectional plug 407. A gap is formed between the top of the filler 408 and the unidirectional plug 407 and the inner top of the annular installation area. The limiting member 409 is installed inside the gap.

[0073] Considering the installation of the one-way plug 407 (which is inserted into the cylinder 402 from top to bottom), the height of the one-way plug 407 must be lower than the height of the annular installation area. However, after installation, a gap is formed between the top of the one-way plug 407 and the inner top of the annular installation area. This gap is a dead corner area that can easily trap cosmetics. Therefore, the limiting component 409 is designed. One purpose is to fill part of the dead corner area, and another purpose is to restrict the one-way plug 407 from moving upward (to prevent the one-way plug 407 from detaching).

[0074] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A cosmetic bottle cap designed to prevent secondary contamination, comprising: A flexible bottle, wherein the top of the flexible bottle is provided with a threaded neck, characterized in that it further comprises: The middle cover has its bottom threadedly connected to the threaded bottle neck, and a partition plate is fixed to the inside of the middle cover. The partition plate divides the interior of the middle cover into a cosmetic use area above the partition plate and a cosmetic isolation area below the partition plate. The cosmetic isolation area is connected to the cosmetic storage area inside the soft bottle. The top cover is threadedly installed with the middle cover or with the soft bottle. The top of the top cover is recessed downward to form a concave sealing disc, which corresponds to the top port of the middle cover. After the top cover is installed, the concave sealing disc seals and blocks the top port of the middle cover. The partition plate is provided with a one-way extrusion hole structure, which allows cosmetics in the cosmetic isolation area to enter the cosmetic use area through the one-way extrusion hole structure. The middle cover includes: a first cylindrical part, a mounting cylindrical part, and a threaded connection part that are fixedly connected from top to bottom, and the partition plate is disposed at the junction of the mounting cylindrical part and the threaded connection part; The first cylindrical part, the mounting cylindrical part, the threaded connection part, and the partition plate are an integral structure; The inner side of the mounting cylinder forms an annular mounting area, the unidirectional extrusion hole structure is located inside the annular mounting area, and the inner side of the annular mounting area is also provided with a filler and a limiting member. The unidirectional extrusion hole structure includes: a through hole formed on a partition plate, a cylindrical body extending upward along the outer contour of the through hole from the top of the partition plate, and a unidirectional plug installed on the cylindrical body; The filler is used to fill the area outside the one-way plug within the annular installation area, and the limiting member is used to keep the positions of the limiting member and the one-way plug fixed.

2. The cosmetic bottle cap for preventing secondary pollution as described in claim 1, characterized in that: The threaded connection part has an external thread structure, and the threaded bottle mouth has an internal thread structure. The threaded connection part is threadedly installed on the inside of the threaded bottle mouth.

3. The cosmetic bottle cap for preventing secondary pollution as described in claim 1, characterized in that: The outer side of the mounting cylinder is provided with an external thread, and the inner side of the upper cover is threadedly installed with the external thread.

4. The cosmetic bottle cap for preventing secondary pollution as described in claim 3, characterized in that: The bottom of the top cover is provided with a skirt, and the side of the soft bottle is provided with a step corresponding to the skirt. After the top cover is installed, the skirt and the step form a second sealing structure.

5. The cosmetic bottle cap for preventing secondary pollution as described in claim 1, characterized in that: The top of the cover has an annular opening, and an elastic ring is glued inside the annular opening, with the elastic ring extending beyond the annular opening.

6. The cosmetic bottle cap for preventing secondary pollution as described in claim 1, characterized in that: The outer side of the top cover is provided with an anti-slip part.

7. The cosmetic bottle cap for preventing secondary pollution as described in claim 1, characterized in that, The one-way plug includes: The housing has at least one overflow hole at one end facing the mounting cylinder, and the other end facing away from the mounting cylinder is open. The bottom of the housing has a mounting hole, which is fitted onto the cylinder. An undercut is fixedly connected to the cylinder above the bottom plate of the housing. A folding plate, one side of which is fixedly connected to the side wall of the end of the housing opposite to the mounting cylinder, and the folding plate has a stop portion that elastically presses downward against the top port of the cylinder.

8. The cosmetic bottle cap for preventing secondary pollution as described in claim 7, characterized in that: The filler is arc-shaped, and the number of fillers is the same as the number of unidirectional extrusion holes. A positioning port is provided on the inner side of the filler. The limiting member is annular, and a positioning member corresponding to the positioning port is fixedly connected to the bottom of the limiting member. The height of the filler is the same as the height of the unidirectional plug. A gap is formed between the top of the filler and the top of the unidirectional plug and the inner top of the annular installation area. The limiting member is installed inside the gap.

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