CN219699294U - Cosmetic product packaging tube - Google Patents

Abstract

The utility model discloses a cosmetic packaging tube which comprises a middle beam core, a base and a top cover. The middle beam core comprises a storage element for containing cosmetics, a driving element with a spiral groove on the inner wall for driving the storage element to move along the axial direction, and a guiding element for limiting the storage element to rotate relative to the storage element; the base is fixedly connected with the middle beam core; the top cover and the base are matched to form a cavity for accommodating the middle beam core, the top cover comprises an outer cover and an inner cover, the inner cover comprises a first section made of rigid materials and a second section made of elastic materials, and the second section is matched with the base in a sealing mode. Compared with the prior art, the inner cover adopting single material injection molding, which is provided by the utility model, has the advantages that the strength of the product is ensured, the product has better air tightness, and the risk of failure after multiple opening and closing is avoided.

Description

Cosmetic product packaging tube

Technical Field

The utility model relates to the field of cosmetic packaging, in particular to a cosmetic packaging tube.

Background

The existing lipstick paste becomes increasingly moist in order to further improve the lip moistening degree of consumers, so that the requirement on the air tightness of the packaging tube is also increasingly high. The general packaging tube consists of a cover body, a base and a middle beam core, wherein the cover body comprises an inner cover and an outer cover, the existing inner cover is generally molded by using a single material, and the air tightness is ensured by matching an air-tight ring with an inner bottom. But the softer the inner cover material, the poorer the product strength, and the difficult of injection molding and assembly; the harder the material is, the larger the opening and closing force of the cover bottom is, the poorer the hand feeling of a consumer, and the risk of functional failure after multiple opening and closing exists.

Disclosure of Invention

The utility model provides a cosmetic packaging tube, which solves the problem that an inner cover is difficult to be subjected to injection molding and assembly or has failure risk after multiple opening and closing in the prior art.

Cosmetic product packaging tube comprising:

the medium beam core comprises a storage element for containing cosmetics, a driving element with a spiral groove on the inner wall for driving the storage element to move along the axial direction, and a guiding element for limiting the storage element to rotate relative to the storage element;

the base is fixedly connected with the middle beam core;

the top cover is matched with the base to form a cavity for accommodating the middle beam core, the top cover comprises an outer cover and an inner cover, the inner cover comprises a first section made of a rigid material and a second section made of an elastic material, and the second section is matched with the base in a sealing mode.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the second section has a collar abutting the outer wall of the base.

Optionally, a gap is formed between the position of the convex ring and the outer cover.

Optionally, the first section and the second section are in interference fit.

Optionally, the first section has a plurality of ribs that abut the outer cover.

Optionally, the plurality of ribs are distributed circumferentially or radially, and the single rib extends axially.

Optionally, the outer cover and the base are fastened.

Optionally, the base comprises an outer bottom tube and an inner bottom tube, and the inner bottom tube is fixedly connected with the driving element.

Optionally, the connecting device comprises a bottom plug, wherein the bottom plug comprises a main body part and a connecting part arranged on the main body part, and the connecting part is arranged between the outer bottom tube and the inner bottom tube.

Optionally, the connecting portion is cylindrical.

Compared with the prior art, the inner cover adopting single material injection molding, which is provided by the utility model, has the advantages that the strength of the product is ensured, the product has better air tightness, and the risk of failure after multiple opening and closing is avoided.

Drawings

FIG. 1 is a schematic view showing a cosmetic packaging tube according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of the inner cap; the method comprises the steps of carrying out a first treatment on the surface of the

FIG. 3 is an enlarged view of portion A of FIG. 1;

FIG. 4 is a schematic structural view of the inner cap;

FIG. 5 is a schematic view of an outsole tube;

FIG. 6 is an enlarged view of portion B of FIG. 1; the method comprises the steps of carrying out a first treatment on the surface of the

Fig. 7 is an enlarged view of the portion C in fig. 1;

FIG. 8 is a schematic view of the structure of the inner plug;

fig. 9 is a schematic structural view of the inner bottom tube.

Reference numerals in the drawings are described as follows:

10. a medium beam core; 11. a memory element; 111. a paste storage cylinder; 112. a transmission rod; 113. a lug; 12. a driving element; 121. a spiral groove; 13. a guide member;

20. a base; 21. an outsole tube; 211. a protrusion; 212. a positioning groove; 213. a limit key; 22. an inner bottom tube; 23. a bottom plug; 24. a main body portion; 25. a connection part; 251. a first surface; 252. a second surface; 253. a positioning ring; 26. a limit groove;

30. a top cover; 31. an outer cover; 311. an annular groove; 32. a gap; 35. an inner cover; 36. a first section; 361. convex ribs; 37. a second section; 371. a convex ring; 372. and limiting the step.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the present disclosure, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.

Referring to fig. 1 to 9, the present utility model provides a cosmetic packing tube including a middle bundle core 10, a base 20, and a top cover 30.

The medium core 10 may be of a conventional art, for example, including a storage element 11 for containing cosmetics, a driving element 12 having a spiral groove 121 on an inner wall for driving the storage element 11 to move in an axial direction, and a guide element 13 for restricting rotation of the storage element 11 with respect thereto. The storage element 11 includes a paste storage cylinder 111 and a driving rod 112 connected to the paste storage cylinder 111, a lug 113 is disposed at the bottom of the driving rod 112, the guiding element 13 has a through hole (the through hole is non-circular) that cooperates with the driving rod 112 to limit the relative rotation of the two, that is, the shape of the through hole is adapted to the driving rod 112, so that the storage element 11 can move up and down, but limit the circumferential rotation thereof, the driving rod 112 passes through the through hole and then extends into the driving element 12, and the lug 113 cooperates with the spiral groove 121 to enable the storage element 11 to move up and down.

The base 20 is fixedly connected with the middle beam core 10, the top cover 30 is matched with the base 20 to form a cavity for accommodating the middle beam core 10, and the top cover 30 comprises an outer cover 31 and an inner cover 35. The existing inner cover 35 is generally formed by injection molding of a single material, but when the material is softer, the strength of the product is poor, and the injection molding and the assembly are not easy; when the material is harder, the opening and closing force of the base 20 and the top cover 30 is larger, the consumer feel is worse, and the problem of failure risk exists after opening and closing for many times.

In order to solve the above-described problem, the inner cap 35 of the present embodiment includes a first section 36 made of a rigid material and a second section 37 made of an elastic material (two-shot molding), and the second section 37 is in sealing engagement with the base 20. The first section 36 ensures the strength of the product, the second section 37 improves the opening and closing hand feeling, has better air tightness, and avoids the problem of failure risk after multiple opening and closing.

In order for the inner cap 35 to be able to sealingly engage the base 20, the second segment 37 has a collar 371 which abuts the outer wall of the base 20. The bulge loop 371 specifically sets up in the bottom of inner cup 35, and sets up in the orientation lid, and when needs closure packing tube, the bulge loop 371 of inner cup 35 offsets with the top of base 20, continues the lock this moment, because second section 37 is the elastic material, bulge loop 371 deforms in the top cap 30 outside until and with the outer wall sealing fit of base 20, deformation complex mode can avoid influencing the problem of gas tightness because of the size deviation. A limiting step 372 is further arranged above the convex ring 371, and the top side of the base 20 is matched with the limiting step 372 in a propping mode when the packing tube is in a closed state.

Further, a gap 32 is formed between the position of the convex ring 371 and the outer cover 31, so that the convex ring 371 has enough deformation space when being buckled.

In this embodiment, there is an interference fit between the first section 36 and the second section 37.

To fixedly connect the inner cap 35 to the outer cap 31, the first section 36 has a plurality of ribs 361 that abut the outer cap 31. The ribs 361 can be an interference fit with the outer cap 31, wherein a plurality of ribs 361 are distributed circumferentially or radially, and a single rib 361 extends axially. Of course, in consideration of the problem of uniform stress, the plurality of ribs 361 are uniformly arranged. In one embodiment, to increase the strength of the connection between the inner cap 35 and the outer cap 31, both may be further reinforced by spraying a hot melt adhesive.

In one embodiment, the outer cover 31 is fastened to the base 20. Specifically, the base 20 includes an outer bottom tube 21 and an inner bottom tube 22, the inner bottom tube 22 is fixedly connected with the driving element 12, and the outer bottom tube 21 is fastened with the outer cover 31. The top of the outer bottom tube 21 is provided with protrusions 211 circumferentially arranged, and the inner circumference of the outer cap 31 is provided with annular grooves 311 matched with the protrusions 211, and when the protrusions are matched, the packing tube is in a closed state, and when opposite forces are applied to separate the protrusions, the top cap 30 can be opened to use cosmetics.

The lipstick packing tube further includes a bottom plug 23, the bottom plug 23 including a main body portion 24 and a connection portion 25 provided on the main body portion 24, the connection portion 25 being provided between the outer bottom tube 21 and the inner bottom tube 22. Wherein the bottom side of the outer bottom tube 21 is in an open state, the connecting portion 25 is substantially cylindrical, and comprises a first surface 251 positioned on the inner side and a second surface 252 positioned on the outer side, the inner bottom tube 22 is connected with the first surface 251 on the inner side, and the outer bottom tube 21 is connected with the second surface 252.

Further, the second surface 252 is provided with a positioning ring 253, and the outer bottom tube 21 is provided with a positioning groove 212 matched with the positioning ring 253, and the positioning ring 253 and the positioning groove 212 are matched to realize axial limiting. In order to achieve circumferential limitation of the outer sole tube 21, the inner circumference of the outer sole tube 21 is provided with axially arranged limiting keys 213, and the outer circumference of the corresponding inner sole tube 22 is provided with limiting grooves 26 cooperating with the limiting keys 213.

During assembly, the outer cover 31 and the inner cover 35 are fixed through hot melt adhesive, the middle binding core 10 is pressed into the inner bottom pipe 22, glue is smeared on the inner side of the bottom plug 23 to fix the middle binding core 10, the limit groove 26 of the inner bottom pipe 22 is inserted into the limit key 213 of the outer bottom pipe 21 until the locating groove 212 and the locating ring 253 of the bottom plug 23 are mutually clamped, and finally the top cover 30 is buckled on the base 20, so that the assembly of the packing tube is completed.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. Cosmetic product packaging tube, characterized in that includes:

the medium beam core comprises a storage element for containing cosmetics, a driving element with a spiral groove on the inner wall for driving the storage element to move along the axial direction, and a guiding element for limiting the storage element to rotate relative to the storage element;

the base is fixedly connected with the middle beam core;

the top cover is matched with the base to form a cavity for accommodating the middle beam core, the top cover comprises an outer cover and an inner cover, the inner cover comprises a first section made of a rigid material and a second section made of an elastic material, and the second section is matched with the base in a sealing mode.

2. The cosmetic packaging tube of claim 1, wherein the second section has a collar abutting the base outer wall.

3. The cosmetic packaging tube of claim 2, wherein the collar is positioned with a gap between the outer cap and the location.

4. The cosmetic packaging tube of claim 1, wherein the first and second sections are an interference fit therebetween.

5. The cosmetic packaging tube of claim 1, wherein the first section has a plurality of ribs that abut the outer cover.

6. The cosmetic packaging tube of claim 5, wherein the plurality of ribs are circumferentially or radially distributed and a single rib extends axially.

7. The cosmetic packaging tube of claim 1, wherein the outer cover and the base are fastened together.

8. The cosmetic packaging tube of claim 1, wherein the base comprises an outer tube and an inner tube, the inner tube being fixedly connected to the drive element.

9. The cosmetic packaging tube of claim 8, comprising a base plug comprising a body portion and a connecting portion disposed on the body portion, the connecting portion disposed between the outer bottom tube and the inner bottom tube.

10. The cosmetic packaging tube of claim 9, wherein the connecting portion is cylindrical.