Lipstick tube

Abstract

A lipstick tube, comprising: a lower shell (2); a tube body (7) which is adhered to the lower shell (2) and has an inner spiral (71); and an inner tube (4) which is arranged in the tube body (7). A middle sleeve (3) is sleeved on the inner tube (4), and the bottom of the middle sleeve (3) is pressed on a flange part (41) of the inner tube (4); an accommodating space (9) is formed between a lower arc-shaped end (412) of the flange part (41) and the top of the tube body (7); a supporting member (5) is arranged in the accommodating space (9); and the supporting member (5) is in contact with the inner wall of the lower shell (2) and abuts against the tube body (7) and the inner tube (4), so that the inner tube (4) is spaced apart from the spiral surface of the tube body (7).

Description

A lipstick tube Technical Field

[0001] This invention relates to the field of cosmetics, specifically to a lipstick tube. Background Technology

[0002] Currently, makeup has become an indispensable part of people's daily lives. Cosmetics come in various forms, such as powder, liquid, and paste. To facilitate the use of cosmetics, different cosmetics are generally made into different shapes and packaged in suitable containers. Paste-type cosmetics, such as lipsticks, lip balms, concealers, skin whitening sticks, and sunscreen sticks, are usually packaged in tubes, which we generally refer to as lipstick tubes or lipsticks / lip balms.

[0003] The existing lipstick tubes, by twisting the shell, cause the internal spiral tube to engage with the beads or protrusions, which in turn drive the cup that holds the lipstick to move up and down repeatedly, allowing the user to apply the lipstick.

[0004] Of course, in order to improve the user's feel, more effort is usually put into the process of screwing the tube and the protrusion, as well as the cooperation between the two, and the manufacturing process becomes more precise, which leads to an increase in production costs. Moreover, after a long period of use, when twisting the lipstick, it becomes less smooth and has a bouncy feel, and the stability also decreases. This greatly reduces the user's experience of using this lipstick, and the lack of a good feel can even seriously affect their shopping experience. Summary of the Invention

[0005] The purpose of this invention is to provide a lipstick tube to overcome the aforementioned shortcomings of the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A lipstick tube, comprising:

[0008] Lower shell;

[0009] A tubular body with an internal spiral that is bonded integrally with the lower shell;

[0010] A middle bundle tube is disposed within the tube body, and a middle sleeve is fitted onto the middle bundle tube, with the bottom of the middle sleeve pressing against the flange portion of the middle bundle tube;

[0011] A space is formed between the lower arc-shaped end of the flange and the top of the tube body. A support member is provided in this space. The support member contacts the inner wall of the lower shell and abuts against the tube body and the middle bundle tube, so that the helical surface of the middle bundle tube and the tube body remains separated.

[0012] In a preferred embodiment of the present invention, the support member is an elastic annular ring.

[0013] In a preferred embodiment of the present invention, the support member is pressed against the surface of the top of the tube by the lower arc-shaped end.

[0014] As a preferred embodiment of the present invention, the middle sleeve is composed of an extension portion and an insertion portion. The insertion portion is inserted between the tube body and the middle bundle tube and presses against the upper arc-shaped end of the flange portion. The force on the upper arc-shaped end is transmitted to the lower arc-shaped end to press against the support member.

[0015] As a preferred embodiment of the present invention, a gap is left between the lower shell and the flange, and a stop member is provided at the gap for sliding assembly with the lower shell.

[0016] As a preferred embodiment of the present invention, the abutment is composed of a planar end and a vertical end, the planar end extends to the corresponding position above the flange portion and is provided with a through groove, one inner wall of the through groove being inclined.

[0017] The bottom of the vertical end is set at an angle.

[0018] In a preferred embodiment of the present invention, the bottom of the middle sleeve extends into the through groove and presses the flat end, causing it to move toward the middle bundle tube and abut against the middle bundle tube;

[0019] The bottom of the middle sleeve extends out of the through groove and abuts against the upper arc-shaped end, pressing against the abutment, so that the inclined side of the vertical end is squeezed between the support and the lower shell, forcing the support to move and press against the middle tube.

[0020] As a preferred embodiment of the present invention, the middle bundle tube has vertical grooves symmetrically extending through it, and one opening of the vertical groove is located at the bottom of the middle bundle tube.

[0021] As a preferred embodiment of the present invention, a support tube is provided inside the middle bundle tube, and a protrusion is provided on the support tube. The protrusion passes through the vertical groove and extends into the inner spiral groove, so that the support tube performs a reciprocating motion of lifting and lowering when the tube body rotates.

[0022] In a preferred embodiment of the present invention, the protrusion is polygonal and is arranged at an angle.

[0023] The present invention has the following beneficial effects: A support member is provided between the lower shell and the middle tube to make the user's operation smooth and silky when the lipstick is screwed in or out. Moreover, the support member can effectively prevent the inner spiral from contacting the surface of the middle tube, always maintaining a certain gap, preventing friction when twisting the lipstick, which would affect the user's feel or even cause noise and affect the user experience. Of course, in order to further limit the middle tube, the extension part of the middle sleeve passes through the through groove and squeezes the inclined edge in the through groove, forcing the flat end to move towards the middle tube and abut against the middle tube. When the bottom of the extension part presses against the flange and simultaneously presses against the abutment, the inclined edge of the vertical end is squeezed between the support member and the lower shell, forcing the support member to move and press against the middle tube. Thus, by pressing the upper and lower ends of the middle tube against each other, the middle tube and the tube body are always kept separated, further avoiding the influence of external forces and improving the smoothness of twisting. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0025] Figure 1 is a schematic diagram of the external structure of the present invention.

[0026] Figure 2 is a schematic diagram of the exploded structure of the present invention.

[0027] Figure 3 is a cross-sectional structural diagram of the present invention.

[0028] Figure 4 is an enlarged structural schematic diagram of point A in Figure 3 of this invention.

[0029] Figure 5 is a schematic diagram of the structure of the middle sleeve bottom and the abutment in the separated state of the present invention.

[0030] Figure 6 is a schematic diagram of the structure of the bottom of the middle sleeve and the abutment in the fit of the present invention.

[0031] Figure 7 is a schematic diagram of the support structure of the present invention.

[0032] Figure 8 is a schematic diagram of the inverted irrigation structure of the present invention.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Top cover; 2. Lower shell; 3. Middle sleeve; 31. Protrusion; 32. Insertion; 311. Protrusion; 4. Middle bundle tube; 41. Flange; 411. Upper arc-shaped end; 412. Lower arc-shaped end; 42. Vertical groove; 5. Support; 6. Bearing tube; 61. Locking block; 62. Support plate; 63. Protrusion; 7. Tube body; 71. Inner spiral; 72. Ring edge; 8. Reservation space; 9. Accommodation space; 10. Abutment; 101. Flat end; 102. Vertical end; 1011. Through groove. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Referring to Figures 1 to 4, the present invention provides a lipstick tube, comprising: a lower shell 2, and a tube body 7 integrally bonded to the lower shell 2 and having an inner spiral 71. The height of the tube body 7 is lower than the height of the lower shell 2 to facilitate the reasonable assembly of other components. The tube body 7 is hollow and has a ring edge 72 extending inward from its bottom to make the bonding between the tube body 7 and the lower shell 2 more secure and increase the bonding area.

[0037] The inner spiral 71 of the tube body 7 is manufactured by a stretching process, which results in a high surface quality of the thread and avoids burrs or scratches caused by traditional cutting processes. Furthermore, the thread undergoes plastic deformation during the stretching process, which improves tensile strength and fatigue strength, and also enhances precision.

[0038] In addition, a middle bundle tube 4 is provided inside the tube body 7, and a middle sleeve 3 is fitted on the middle bundle tube 4. The bottom of the middle sleeve 3 presses against the flange portion 41 of the middle bundle tube 4.

[0039] The flange portion 41 includes an upper arc-shaped end 411 and a lower arc-shaped end 412, and protrudes from the surface of the middle tube 4 in an annular arrangement. An accommodating space 9 is formed between the lower arc-shaped end 412 of the flange portion 41 and the top of the tube body 7, that is, the space enclosed by the lower arc-shaped end 412, the surface of the middle tube 4, the top of the tube body 7, and the inner wall of the lower shell 2. A support member 5 is provided in this space. The support member 5 contacts the inner wall of the lower shell 2 and abuts against the tube body 7 and the middle tube 4, so that the lower shell 2 can be twisted to enhance the twisting feel, and can also prevent the top of the tube body 7 from directly contacting the lower arc-shaped end 412 of the flange portion 41, avoiding friction that affects the feel of use, and keeping the spiral surface of the middle tube 4 and the tube body 7 separated. The support member 5 is an elastic annular ring. In this embodiment, an O-ring is selected to avoid hard contact between the components. Different shapes can also be selected according to the actual situation and matched with the lipstick tube installation.

[0040] The support member 5 is pressed down onto the top surface of the tube body 7 by the flange portion 41. During this pressing, the contour formed between the lower arc-shaped end 412 of the flange portion 41 and the surface of the middle tube 4 can also match the contour of the support member 5, increasing the pressing force on the support member 5 and keeping it stable. In addition, the support member 5 can keep the tube body 7 stable, so that the pressing force is transmitted to the bottom ring edge 72. At the same time, as can be seen from the figure, the diameter of the support member 5 is much larger than the thickness of the tube body 7, which can hold against the surface of the middle tube 4, so that the inner spiral 71 does not interfere with the surface of the middle tube 4, and always maintains a certain gap to prevent friction when twisting the lipstick, which would affect the feel of use or even cause noise and affect the user experience.

[0041] In addition, a middle sleeve 3 is fitted on the middle tube 4. The middle sleeve 3 is composed of an extension part 31 and an insertion part 32. The insertion part 32 is inserted between the tube body 7 and the middle tube 4 and presses against the upper arc-shaped end 411 of the flange part 41. The force on the upper arc-shaped end 411 is transmitted to the lower arc-shaped end 412, which restricts the support member 5 and further presses the support member 5 to maintain its stability and prevent the structure of each component from jumping.

[0042] Furthermore, referring to Figures 5 to 7, a gap is left between the lower shell 2 and the flange portion 41, and a stop 10 that is slidably assembled with the lower shell 2 is provided in the gap.

[0043] The abutment 10 is composed of a planar end 101 and a vertical end 102. The planar end 101 extends to the corresponding position above the flange portion 41 and has a through groove 1011. One inner wall of the through groove 1011 is beveled. The bottom of the vertical end 102 is also beveled.

[0044] When the bottom of the middle sleeve 3 is inserted into the through groove 1011, it first contacts the inclined side of the through groove 1011. At this time, the flat end 101 is squeezed to move towards the middle bundle tube 4 and abut against the middle bundle tube 4, pressing and fixing the upper part of the middle bundle tube 4.

[0045] When the through groove 1011 extends out from the bottom of the middle sleeve 3 and abuts against the upper arc end 411 and presses against the abutment 10, the inclined side of the vertical end 102 is squeezed between the support 5 and the lower shell 2, forcing the support 5 to move and press against the middle tube 4. At the same time, it can also press against the support 5 to keep it fixed, that is, to press and fix the lower half of the middle tube 4. Thus, by pressing the upper and lower ends of the middle tube 4 against each other, the middle tube 4 and the tube body 7 are always kept separated, further avoiding the influence of external forces and improving the smoothness of screwing.

[0046] The protruding part 31 contracts towards the middle bundle tube 4 relative to the intruding part 32, forming a space 8 between the intruding part 32 and the middle bundle tube 4 to facilitate the rotation of the lower shell 2. If the space 8 is not there and is completely filled, the rotation of the lower shell 2 will be affected.

[0047] A vertical groove 42 is symmetrically inserted through the middle bundle tube 4, and one opening of the vertical groove 42 is located at the bottom of the middle bundle tube 4.

[0048] A support tube 6 is provided inside the middle tube 4. A protrusion 63 is provided on the support tube 6. The protrusion 63 passes through the vertical groove 42 and extends into the groove of the inner spiral 71, so that the support tube 6 performs a reciprocating motion of lifting and lowering when the tube body 7 rotates.

[0049] The above-mentioned cooperation between the vertical groove 42 and the protrusion 63 enables the stable movement of the bearing tube 6 in the middle bundle tube 4, and the overall structure is relatively compact, which also reduces the weight of the components.

[0050] The protrusion 63 is polygonal and angled. Preferably, it is a parallelogram. When the tube 7 rotates, the protrusion 63 embeds into the wall of the groove, preventing it from accidentally dislodging or loosening during movement, thus increasing the stability and safety of the components. Furthermore, the angled arrangement of the protrusion 63 reduces the contact area with the groove wall during movement, thereby reducing friction. This helps reduce friction loss and energy consumption, improving efficiency. It also ensures that the supporting tube 6 is subjected to a uniform force, reducing vibration and impact during movement. This contributes to improved stability and provides smoother movement.

[0051] A support plate 62, which bends inward and supports the paste, is provided in the support tube 6. A locking block 61, which extends inward in a ring shape, is provided at one opening of the support tube 6. This reinforces and supports the paste, ensures stability when locked, and prevents the paste or other components from slipping or falling off during the lifting process.

[0052] The outer surface of the middle sleeve 3 is provided with protrusions 311, and the upper cover 1 engages with the protrusions 311 to fit with the lower shell 2. This effectively increases the tightness between the middle sleeve 3 and the upper cover 1, preventing external environmental factors such as dust and moisture from entering the component.

[0053] The lipstick tube can be made of plastic or metal, preferably all aluminum, which highlights a comfortable feel, gives a high-end visual effect, is resistant to external damage, and the material is recyclable.

[0054] In some instances, as shown in Figure 8, the lipstick tube can be inserted from the bottom. This is done for ease of installation and also allows the tube to be ejected for replacement when the lipstick is used up too quickly.

[0055] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

[0056] Type the free content description paragraph for the sequence list here.

Claims

1. A lipstick tube, characterized in that, include: Lower shell; A tubular body with an internal spiral that is bonded integrally with the lower shell; A middle bundle tube is disposed within the tube body, and a middle sleeve is fitted onto the middle bundle tube, with the bottom of the middle sleeve pressing against the flange portion of the middle bundle tube; A space is formed between the lower arc-shaped end of the flange and the top of the tube body. A support member is provided in this space. The support member contacts the inner wall of the lower shell and abuts against the tube body and the middle bundle tube, so that the helical surface of the middle bundle tube and the tube body remains separated.

2. The lipstick tube according to claim 1, characterized in that: The support member is an elastic ring.

3. The lipstick tube according to claim 1, characterized in that: The support member is pressed against the surface of the top of the tube by the lower arc-shaped end.

4. The lipstick tube according to claim 1, characterized in that: The middle sleeve consists of an extension part and an insertion part. The insertion part is inserted between the tube body and the middle bundle tube and presses against the upper arc-shaped end of the flange. The force on the upper arc-shaped end is transmitted to the lower arc-shaped end to press against the support member.

5. The lipstick tube according to claim 1, characterized in that: A gap is left between the lower shell and the flange, and a stop piece is provided at the gap for sliding assembly with the lower shell.

6. The lipstick tube according to claim 5, characterized in that: The abutment consists of a flat end and a vertical end. The flat end extends to the corresponding position above the flange and has a through groove. One inner wall of the through groove is set with an inclined side. The bottom of the vertical end is set at an angle.

7. The lipstick tube according to claim 6, characterized in that: The bottom of the middle sleeve extends into the through groove and presses the flat end, causing it to move toward the middle bundle tube and abut against the middle bundle tube; The bottom of the middle sleeve extends out of the through groove and abuts against the upper arc-shaped end, pressing against the abutment, so that the inclined side of the vertical end is squeezed between the support and the lower shell, forcing the support to move and press against the middle tube.

8. The lipstick tube according to claim 1, characterized in that: The middle tube has symmetrical vertical grooves running through it, and one opening of the vertical groove is located at the bottom of the middle tube.

9. The lipstick tube according to claim 8, characterized in that: A support tube is provided inside the middle bundle tube, and a protrusion is provided on the support tube. The protrusion passes through the vertical groove and extends into the inner spiral groove, so that the support tube performs a reciprocating motion of lifting and lowering when the tube body rotates.

10. The lipstick tube according to claim 9, characterized in that: The protrusions are polygonal and are arranged at an angle.

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