Packaging tube

Abstract

The utility model discloses a packaging tube which comprises a storage element, a packaging element, a sealing element, a sealing element and a sealing element. The driving element is of a tubular structure, and the inner wall of the driving element is provided with a spiral groove matched with the convex lug and used for driving the storage element; the guide element is in running fit with the driving element and is provided with a channel allowing the storage element to move, the side wall is provided with a guide groove extending in the axial direction of the channel to limit rotation of the storage element, the convex lug penetrates through the guide groove to be matched with the spiral groove, the top of the guide element is provided with a notch extending to the guide groove, and the notch is provided with a first surface and a second surface which are opposite; the first surface is provided with a positioning protrusion, and the second surface is provided with a positioning groove matched with the positioning protrusion. In the assembling or using process, the two surfaces of the notch can get close to each other, namely, the positioning protrusions enter the positioning grooves, and compared with the prior art, dislocation of the two sides can be prevented, and the problems that cosmetics are scratched and the hand feeling is too heavy during rotation can be solved.

Description

Technical Field

[0001] The present application relates to the field of cosmetic packaging, and in particular to a packaging tube. Background Art

[0002] Existing packaging tubes generally include a storage element, a driving element, and a guiding element. In order to guide the movement of the storage element, a corresponding guide groove is provided on the guiding element. For example, the document with announcement number CN203207448U discloses an oil-free and glue-free lipstick tube core, which includes a bead, a fork, a spiral, and a middle sleeve. The inner wall of the spiral is provided with a spiral notch, the fork is provided with an axially arranged guide groove, the bead is provided with a protrusion that passes through the guide groove and extends into the notch, and the top of the fork is provided with a slit extending to the guide groove.

[0003] However, during the assembly process or use, the fork mouth often deforms or even becomes misplaced, causing scratches on cosmetics and making the hand feel heavier when rotating. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a packaging tube.

[0005] Packaging tube, including:

[0006] Storage element for cosmetics with lugs on the side walls;

[0007] The driving element is a tubular structure, and the inner wall is provided with a spiral groove that cooperates with the lug to drive the storage element;

[0008] A guide element is rotatably engaged with the driving element and has a channel allowing the storage element to move. The side wall is provided with a guide groove extending axially along the channel to limit the rotation of the storage element. The lug passes through the guide groove and engages with the spiral groove. The top of the guide element is provided with a cutout extending to the guide groove. The cutout has a first surface and a second surface opposite to each other. The first surface is provided with a positioning protrusion and the second surface is provided with a positioning groove that cooperates with the positioning protrusion.

[0009] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0010] Optionally, guide slopes are provided on the inner and outer sides of the positioning protrusion.

[0011] Optionally, the top of the guiding element has a convex ring, and the side wall gradually thickens from the top of the guiding element to the convex ring to form a guide portion, and the wall thickness near the cutout increases radially and is flush with the outer surface of the convex ring.

[0012] Optionally, the radial width of the first surface or the second surface is 0.85 mm to 1.10 mm.

[0013] Optionally, the positioning protrusion and the positioning groove are centrally arranged.

[0014] Optionally, the spacing between the incisions is 0.51 mm to 0.69 mm.

[0015] Optionally, the axial length of the incision is 1.55 mm to 1.85 mm.

[0016] Optionally, both ends of the guide groove are respectively provided with a first bending section and a second bending section arranged along the circumferential direction.

[0017] The packaging tube of the present application has a first surface and a second surface facing each other at the cutout. The first surface is provided with a positioning protrusion, and the second surface is provided with a positioning groove. During assembly or use, the two surfaces of the cutout can be brought close to each other, that is, the positioning protrusion enters the positioning groove. Compared with the prior art, this can prevent the two sides from being misaligned, and can avoid the cosmetics from being scratched and the problem of a heavy feel when rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a packaging tube according to an embodiment of the present application;

[0019] Figure 2 for Figure 1 Exploded view of the medium packaging tube;

[0020] Figure 3 for Figure 2 Structural diagram of the middle A section;

[0021] Figure 4 for Figure 1 Schematic diagram of part of the structure when viewed from above.

[0022] The reference numerals in the figures are described as follows:

[0023] 100. Storage element; 110. Lug;

[0024] 200, driving element; 210, spiral groove;

[0025] 300, guide element; 310, guide groove; 311, first bending section; 312, second bending section; 320, cutout; 321, first surface; 322, positioning protrusion; 323, guide slope; 324, second surface; 325, positioning groove; 330, raised ring; 331, annular protrusion; 340, guide portion;

[0026] 400. Decorative elements. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0028] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] In this application, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number or order of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this application, the terms "comprises" and "comprising" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or apparatus comprising 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 products or apparatuses.

[0032] See also Figures 1 and 2One embodiment of the present application provides a packaging tube, comprising a storage element 100, a guide element 300, and a drive element 200, which are coaxially sleeved together from the inside to the outside. The storage element 100 is used to hold cosmetics, and has a lug 110 on its side wall. The cosmetics generally refer to cream-type cosmetics such as lipstick and lip balm. The drive element 200 is a tubular structure, and its inner wall is provided with a spiral groove 210 that cooperates with the lug 110 to drive the storage element 100. The guide element 300 rotates with the drive element 200 and has a channel that allows the storage element 100 to move. The side wall is provided with a guide groove 310 that extends axially along the channel to limit the rotation of the storage element 100. The lug 110 passes through the guide groove 310 and cooperates with the spiral groove 210. Of course, in order to make the movement of the storage element 100 more stable, the number of the guide groove 310 and the lug 110 are both two, and they are symmetrically arranged.

[0033] In consideration of the ease of assembly, the existing guide element 300 is provided with a cutout 320 extending to the guide groove 310 at the top of the guide element 300. When assembling the storage element 100, the cutout 320 can be opened to facilitate the insertion of the lug 110 into the guide groove 310 of the guide element 300. However, the cutout 320 may be squeezed during assembly or rotation with the drive element 200, causing deformation of the mouth of the guide element 300, and even misalignment on both sides of the cutout 320. Therefore, this structure will not only scratch the cosmetics, but also make the hand feel heavier during rotation.

[0034] To solve this problem, see Figures 2 to 4 In the packaging tube of the present application, the top of the guide element 300 is provided with a cutout 320 extending into the guide groove 310. The cutout 320 has a first surface 321 and a second surface 324 facing each other. The first surface 321 is provided with a positioning protrusion 322, and the second surface 324 is provided with a positioning groove 325 that mates with the positioning protrusion 322. During assembly or use, the two surfaces of the cutout 320 can be brought into close proximity, that is, the positioning protrusion 322 enters the positioning groove 325, without misalignment. Compared to the prior art, this effectively prevents misalignment between the two sides, avoiding scratches on the cosmetics and preventing the overall heavy feel during rotation.

[0035] In order to facilitate the positioning protrusion 322 to enter the positioning groove 325, the positioning protrusion 322 is provided with guiding inclined surfaces 323 on both sides. Inside and outside are relative terms. In this embodiment, the inside facing the guide element 300 is the inside, and the outside facing the guide element 300 is the outside.

[0036] Considering the problem of assembling the guide element 300 and the drive element 200, see Figure 1 and Figure 3The guide element 300 has a raised ring 330 at the top and an annular protrusion 331 near the bottom. After assembly, the drive element 200 is inserted into the guide element 300, specifically being clamped between the raised ring 330 and the annular protrusion 331. To facilitate installation, the sidewall of the guide element 300 gradually thickens from the top to the raised ring 330 to form a guide portion 340. The wall thickness near the cutout 320 increases radially and is flush with the outer surface of the raised ring 330. This design not only increases the structural strength of the cutout 320, but also makes the shape more aesthetically pleasing.

[0037] When the guiding element 300 and the driving element 200 are specifically assembled, the guiding portion 340 is squeezed against the side wall of the driving element 200, and the first surface 321 and the second surface 324 of the cutout 320 are close to each other (or the positioning protrusion 322 and the positioning groove 325 cooperate to close the cutout 320), so that the inner diameter of the guiding portion 340 is deformed and reduced, making it easier for the driving element 200 to be smoothly fitted onto the guiding element 300.

[0038] In this embodiment, preferably, the radial width of the first surface 321 or the second surface 324 is 0.85 mm to 1.10 mm. Figure 4 As shown, the positioning protrusion 322 and the positioning groove 325 are centrally arranged, and the spacing between the cutouts 320 is 0.51 mm to 0.69 mm.

[0039] In one embodiment, the axial length of the cutout 320 is 1.55 mm to 1.85 mm.

[0040] See also Figure 2 To position the storage element 100 at its highest and lowest points and prevent cosmetics from shifting during use, the guide groove 310 is provided with a first curved section 311 and a second curved section 312 arranged circumferentially at each end. During use, when the storage element 100 is at its highest or lowest point, the lug 110 of the storage element 100 engages with the first curved section 311 or the second curved section 312, achieving axial positioning. Preferably, the first curved section 311 and the second curved section 312 are located on opposite sides of the guide groove 310.

[0041] Of course, considering the aesthetics, the packaging tube further includes a decorative element 400 fixedly connected to the driving element 200 , wherein the outer surfaces of the decorative element 400 , the guiding element 300 and the driving element 200 are flush, making the overall appearance more beautiful.

[0042] The technical features of the above embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. When technical features in different embodiments are reflected in the same figure, it can be regarded as that figure also discloses the combination examples of the various embodiments involved.

[0043] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art could make numerous variations and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application.

Claims

1. A packaging tube, characterized in that: include: Storage element for cosmetics with lugs on the side walls; The driving element is a tubular structure, and the inner wall is provided with a spiral groove that cooperates with the lug to drive the storage element; A guide element is rotatably engaged with the driving element and has a channel allowing the storage element to move. The side wall is provided with a guide groove extending axially along the channel to limit the rotation of the storage element. The lug passes through the guide groove and engages with the spiral groove. The top of the guide element is provided with a cutout extending to the guide groove. The cutout has a first surface and a second surface opposite to each other. The first surface is provided with a positioning protrusion and the second surface is provided with a positioning groove that cooperates with the positioning protrusion.

2. The packaging tube according to claim 1, characterized in that Guide slopes are provided on the inner and outer sides of the positioning protrusion.

3. The packaging tube according to claim 1, characterized in that The top of the guide element has a convex ring. From the top of the guide element to the convex ring, the side wall gradually thickens to form a guide portion. The wall thickness near the cutout increases radially and is flush with the outer surface of the convex ring.

4. The packaging tube according to claim 3, characterized in that: The radial width of the first surface or the second surface is 0.85 mm to 1.10 mm.

5. The packaging tube according to claim 1, characterized in that The positioning protrusion and the positioning groove are centrally arranged.

6. The packaging tube according to claim 1, wherein: The spacing between the incisions is 0.51 mm to 0.69 mm.

7. The packaging tube according to claim 1, characterized in that The axial length of the incision is 1.55 mm to 1.85 mm.

8. The packaging tube according to claim 1, wherein: The two ends of the guide groove are respectively provided with a first bending section and a second bending section arranged along the circumferential direction.

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