Packaging tube with anti-shaking function

Abstract

The utility model discloses a packaging tube with an anti-shaking function, which comprises a middle bundle core and a base which are matched in a pluggable manner, the middle bundle core comprises a storage element, a driving element and a guide element, the storage element is used for bearing paste, a spiral groove matched with the storage element is formed in the driving element, and the guide element is arranged in the spiral groove. The driving element is used for driving the storage element to move axially, the guiding element is in running fit with the driving element to limit the circumferential movement of the storage element, a gap exists between the median bundle core and the base, and the median bundle core is arranged in the gap. One of the middle bundle core and the base is provided with a plurality of limiting pieces which protrude towards the other one and are distributed in the circumferential direction. According to the packaging pipe with the anti-shaking function, the limiting piece is arranged on the middle bundle core or the base, the gap between the middle bundle core and the base can be reduced through the limiting piece, and compared with the prior art, the problem of shaking can be solved.

Description

Technical Field

[0001] The present application relates to the field of cosmetic packaging, and in particular to a packaging tube with an anti-shaking function. Background Art

[0002] The packaging tubes of lipsticks, lip glosses and other pastes generally include a core and a base. In order to facilitate reuse (environmental protection) and to be able to use pastes of different colors, packaging tubes with replaceable cores are available on the market. For example, a pluggable structure is used between the core and the base. However, due to the requirement of replaceability, the core needs to be plugged in and out of the base many times. That is, after multiple pull-outs and presses, the matching part of the structure will wear and loosen, resulting in shaking, which affects the feel of use. Utility Model Content

[0003] In order to solve the above problems, the utility model provides a packaging tube with an anti-sway function.

[0004] The packaging tube includes a pluggable middle bundle core and a base, the middle bundle core includes a storage element, a driving element and a guiding element, the storage element is used to carry a paste, the driving element has a spiral groove inside that cooperates with the storage element to drive the storage element to move axially, the guiding element rotates with the driving element to limit the circumferential movement of the storage element, and there is a gap between the middle bundle core and the base, in which one of the middle bundle core and the base is provided with a plurality of circumferentially distributed limit members protruding toward the other.

[0005] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0006] Optionally, the limiting member is arranged on the inner wall of the base.

[0007] Optionally, the distance between the limiting member and the middle bundle core is 0.05 mm to 0.11 mm.

[0008] Optionally, the gap is 0.15 mm to 0.25 mm.

[0009] Optionally, the limiting member is a convex point structure.

[0010] Optionally, the base includes an inner bottom and an outer bottom which are sleeved with each other, and a circumferential limiting structure and an axial limiting structure are provided between the inner bottom and the middle bundle core.

[0011] Optionally, the circumferential limiting structure includes a positioning hole arranged at the bottom of the guiding element and a positioning column arranged in the inner bottom and matched with the positioning hole.

[0012] Optionally, the axial limiting structure includes an elastic claw provided on the top of the positioning column and an engaging surface arranged around the positioning hole and engaged with the elastic claw.

[0013] Optionally, the positioning column is a hollow structure.

[0014] Optionally, a decorative element is included, which is fixed to the periphery of the driving element and extends to the bottom of the guiding element to basically store and hide the guiding element.

[0015] In the packaging tube with anti-sway function of the present application, a limiting member is provided on the middle bundle core or the base, and the limiting member can reduce the gap between the middle bundle core and the base, which can improve the shaking problem compared with the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a packaging tube with an anti-sway function according to an embodiment of the present application;

[0017] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0018] Figure 3 It is a schematic diagram of the partial structure of the cooperation between the middle bundle core and the inner bottom;

[0019] Figure 4 for Figure 1 Exploded view of the medium packaging tube;

[0020] Figure 5 It is a schematic diagram of the structure of the middle bundle core and the inner bottom;

[0021] Figure 6 is a cross-sectional view of the inner bottom;

[0022] Figure 7 for Figure 5 Schematic diagram of the structure of the midsole from another perspective.

[0023] The reference numerals in the figures are described as follows:

[0024] 10. Middle beam core;

[0025] 110. Storage element;

[0026] 120. driving element; 121. spiral groove;

[0027] 130, guiding element; 131, positioning hole; 132, engaging surface;

[0028] 140. Decorative elements;

[0029] 20. Base;

[0030] 210, inner bottom; 211, stopper; 212, positioning column; 213, elastic claw; 214, through hole;

[0031] 220. Outsole. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] 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 a central 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 a central component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0035] 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 indicated technical features. 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, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0036] In this application, the terms "comprises" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a system, product or device comprising a series of units is not necessarily limited to those units explicitly listed, but may include other units not explicitly listed or inherent to these products or devices.

[0037] See also Figure 1 to Figure 7In one embodiment of the present application, a packaging tube with an anti-sway function is provided, comprising a pluggable middle bundle core 10 and a base 20, that is, the middle bundle core 10 is replaceable. The middle bundle core 10 comprises a storage element 110, a driving element 120 and a guiding element 130. The storage element 110 is a cylindrical structure for carrying a paste, wherein the paste generally refers to cosmetics such as lipstick and lip gloss.

[0038] Generally, the storage element 110 is provided with a protrusion (not shown in the figure) on its periphery, and the driving element 120 has a spiral groove 121 inside that matches the storage element 110 (protrusion) to drive the storage element 110 to move axially. Of course, in order to limit the circumferential movement of the storage element 110, the guide element 130 is provided with a guide groove (not shown in the figure), and the protrusion of the storage element 110 passes through the guide groove and matches with the spiral groove 121. When the guide element 130 and the driving element 120 rotate and match, the storage element 110 can only move axially in the middle beam core 10 due to the limiting effect of the guide groove.

[0039] In order to allow the packaging tube to rotate normally, there is a gap between the middle beam core 10 and the base 20. However, since the middle beam core 10 is pluggable and replaceable, after the middle beam core 10 and the base 20 are plugged in and out multiple times, the matching structure between them will gradually wear and loosen, and the middle beam core 10 will shake. In order to solve this problem, the packaging tube with anti-sway function of the present application is provided with a plurality of circumferentially distributed limiters 211 protruding toward the other in the gap, that is, one of the middle beam core 10 and the base 20. The limiters 211 can reduce the gap between the middle beam core 10 and the base 20, improve the shaking problem, and improve the feel of use.

[0040] The number of the limiting members 211 can be set according to the requirements, and this application does not make a specific setting. For example, in this embodiment, the number of the limiting members 211 is 4, and they are evenly distributed along the circumference. Preferably, see Figure 6-7 The limiting member 211 is a convex point structure.

[0041] See also Figure 1-2 The stopper 211 is disposed on the inner wall of the base 20, and the distance between the stopper 211 and the middle beam core 10 (see Figure 2 The M) is 0.05mm~0.11mm, and preferably, the spacing is 0.08mm.

[0042] Furthermore, the gap between the middle beam core 10 and the base 20 (see Figure 2 The L) in the figure is 0.15 mm to 0.25 mm, and preferably, the spacing is 0.20 mm.

[0043] See also Figure 1 to Figure 7The base 20 includes an inner bottom 210 and an outer bottom 220 which are sleeved with each other (the two can be fixed by hot melt adhesive), and a circumferential limiting structure and an axial limiting structure are arranged between the bottom of the inner bottom 210 and the bottom of the middle bundle core 10.

[0044] Specifically, the circumferential limiting structure includes a positioning hole 131 disposed at the bottom of the guide element 130 and a positioning column 212 disposed in the inner bottom 210 and matched with the positioning hole 131. There is no special requirement for the shape of the positioning hole 131, as long as it satisfies the non-circular shape, for example, see Figure 5 In the figure, the positioning hole 131 is a regular octagon.

[0045] In order to perform axial limiting, the axial limiting structure includes an elastic claw 213 arranged on the top of the positioning column 212 and a clamping surface 132 arranged around the positioning hole 131 and engaged with the elastic claw 213. The number of the elastic claws 213 can be set according to needs, for example Figure 7 In the figure, the number of elastic claws 213 is specifically 4 and they are evenly distributed along the circumference. Of course, in order to facilitate the deformation of the elastic claws 213 for easy engagement, the positioning column 212 is a hollow structure, and the bottom of the inner bottom 210 is also provided with a through hole 214 arranged opposite to the elastic claws 213.

[0046] Taking into account the need to improve aesthetics, the center beam core 10 also includes a decorative element 140. The decorative element 140 is generally made of metal, such as aluminum alloy. It is fixed to the periphery of the driving element 120 and extends to the bottom of the guiding element 130, basically storing and hiding it. The remaining components, namely the storage element 110 and the driving element 120 are also hidden inside the decorative element 140, making the overall shape of the center beam core 10 more beautiful and ensuring that the center beam core 10 cannot be used alone without installing the base 20.

[0047] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0048] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A packaging tube with an anti-sway function, comprising a pluggable middle bundle core and a base, wherein the middle bundle core comprises a storage element, a driving element and a guiding element, wherein the storage element is used to carry a paste, wherein the driving element has a spiral groove inside thereof that cooperates with the storage element to drive the storage element to move axially, and the guiding element rotates with the driving element to limit the circumferential movement of the storage element, characterized in that: There is a gap between the middle beam core and the base, and in the gap, one of the middle beam core and the base is provided with a plurality of circumferentially distributed limiting members protruding toward the other.

2. The packaging tube according to claim 1, characterized in that: The limiting member is arranged on the inner wall of the base.

3. The packaging tube according to claim 2, characterized in that: The distance between the limiting member and the middle beam core is 0.05 mm to 0.11 mm.

4. The packaging tube according to claim 1, characterized in that: The gap is 0.15 mm to 0.25 mm.

5. The packaging tube according to claim 1, characterized in that: The limiting member is a convex point structure.

6. The packaging tube according to claim 1, characterized in that: The base comprises an inner bottom and an outer bottom which are sleeved with each other, and a circumferential limiting structure and an axial limiting structure are provided between the inner bottom and the middle bundle core.

7. The packaging tube according to claim 6, characterized in that: The circumferential limiting structure includes a positioning hole arranged at the bottom of the guiding element and a positioning column arranged in the inner bottom and matched with the positioning hole.

8. The packaging tube according to claim 7, characterized in that: The axial limiting structure includes an elastic claw arranged on the top of the positioning column and an engaging surface arranged around the positioning hole and engaged with the elastic claw.

9. The packaging tube according to claim 8, characterized in that: The positioning column is a hollow structure.

10. The packaging tube according to claim 1, characterized in that: The decorative element is fixed to the outer periphery of the driving element and extends to the bottom of the guiding element to basically store and hide the guiding element.

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