CN211065405U

CN211065405U - Shaking-free square packing tube

Info

Publication number: CN211065405U
Application number: CN201920385839.XU
Authority: CN
Inventors: 梁一方; 顾柏锋
Original assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Current assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Priority date: 2019-03-25
Filing date: 2019-03-25
Publication date: 2020-07-24
Anticipated expiration: 2029-03-25

Abstract

The utility model discloses a square packing tube that does not have and rock, including upper cover, well bundle core and base, the base includes that main part and cross section are square undergauge portion, the upper cover have the shape with the cavity that undergauge portion matches, a serial communication port, undergauge portion and/or at least one lateral wall of cavity has along the protruding muscle of well bundle dabber to arranging, at the lid state of closing, protruding muscle and relative lateral wall tight fit. The utility model discloses only realize the tight fit in protruding muscle department between the undergauge portion of packing tube and the cavity, have the clearance between the all the other parts, this clearance can communicate inside cavity and outside atmospheric pressure, can guarantee on the one hand that upper cover and base realize the tight fit, can not rock, and on the other hand also can not too closely because of the cooperation, is difficult to take off the upper cover because the stranded gas.

Description

Shaking-free square packing tube

Technical Field

The utility model relates to a cosmetics packaging technical field especially relates to a square packing tube of cosmetics such as lipstick, lip gloss that upper cover does not have and rocks.

Background

The existing packing tubes for lipstick and lipstick are composed of base, top cover and middle core, wherein the middle core is composed of decorative middle core, spiral as driving part, fork as guiding part and bead for containing ointment, and the base is inserted into the cover to form a cavity for sealing the middle core. The middle bundle core is generally in a cylindrical structure due to the limitation of the working principle, but the whole packing tube can be in other shapes, and the cross section of some packing tubes is in a square structure.

The CN208030585U discloses a square packing tube, which includes a central core and a base tube with a square cross section, the bottom of the central core is provided with an annular groove, the base tube includes an outsole and an insole, the inner surface of the outsole is closely attached to the outer surface of the insole, at least one sidewall of the insole is provided with a spring plate, and the inner side of the spring plate is provided with a fastening point matched with the annular groove.

For example, JP1993021811U discloses a cosmetic container, which is also composed of a base, a core and a top cover, wherein the base has a reduced diameter portion with a square cross section, the reduced diameter portion is matched with the inner cavity of the top cover, it is foreseen that the inner cavity of the top cover is also square, in order to realize the sealing matching of the reduced diameter portion and the top cover, the clearance between the reduced diameter portion and the top cover is very small, generally about 0.05mm, if the clearance is too small, the air tightness between the top cover and the base is very good, when the top cover is taken out, the inner volume of the packing tube increases suddenly, which results in that the air pressure drops very fast, the top cover is not easy to pull out, and if the clearance is too large, the top cover will shake relative to the base.

SUMMERY OF THE UTILITY MODEL

The utility model provides a square packing tube, this packing tube upper cover and base cooperation are inseparable, can not appear rocking, and the packing tube is inside to communicate with each other with outside atmospheric pressure, takes off the upper cover during use easily.

The utility model provides a square packing tube, includes upper cover, well bundle core and base, the base includes that main part and cross section are square undergauge portion, the upper cover have the shape with the cavity that undergauge portion matches, undergauge portion and/or at least one lateral wall of cavity has the protruding muscle of following well bundle core axial arrangement, and at the lid state of cooperateing, protruding muscle and relative lateral wall tight fit.

Preferably, the height of the convex rib is 0.01-0.05 mm.

Preferably, the four side walls of the cavity or the reduced diameter part are provided with convex ribs.

More preferably, each side wall is provided with two ribs, and an air channel is formed between the two ribs.

Preferably, four side walls of the diameter reducing part are provided with buckling points, and the side wall of the cavity is provided with buckling grooves matched with the buckling points.

Preferably, the middle bundle core comprises beads, a spiral, a middle section and a middle bundle, the beads comprise a cylinder body located inside the middle bundle and a transmission rod extending into the spiral, salient points are arranged on two sides of the transmission rod, a spiral groove matched with the salient points is arranged on the inner wall of the spiral, and the middle section is provided with a through hole for the transmission rod to penetrate through to limit the rotation of the middle section.

Preferably, the upper cover is engaged with the main body in a closed state.

The utility model discloses only realize the tight fit in protruding muscle department between the undergauge portion of packing tube and the cavity, have the clearance between the all the other parts, this clearance can communicate inside cavity and outside atmospheric pressure, can guarantee on the one hand that upper cover and base realize the tight fit, can not rock, and on the other hand also can not too closely because of the cooperation, is difficult to take off the upper cover because the stranded gas.

Drawings

Fig. 1 is an axial sectional view of the square packing tube of the present invention.

Fig. 2 is a partially enlarged view of a in fig. 1.

Fig. 3 is a transverse sectional view of the square packing tube of the present invention.

Fig. 4 is an enlarged view of a portion B in fig. 2.

Fig. 5 is a structural view of the upper cover.

Detailed Description

As shown in figure 1, a square packing tube for cosmetics such as lipstick and lip gloss has a square cross section which is not a true square, and has a circular chamfer at a corner, and the square shape only indicates that the square packing tube has four side walls. The packaging tube comprises an upper cover 1, a base 2 and a middle bundle core 3, wherein the middle bundle core 3 is the most main component and consists of four components, namely a bead 31, a spiral 32, a middle section 33 and a middle bundle 34.

The middle strand 34 is a decorative member that is fixedly connected to the middle section 33. The screw 32 is a driving member, the inner wall of which is provided with a spiral groove 320, the beads are composed of a cylinder 311 and a transmission rod 312, the cylinder 311 is used for containing paste, and the tail part of the transmission rod 312 is provided with two salient points matched with the spiral groove 320. The middle section 33 is a guide having a through hole 330 at its center, which is shaped to match the driving rod, and can restrict the driving rod 312 from rotating. When the screw 32 rotates relative to the middle beam 34, the salient point moves along the spiral groove 320, thereby driving the cylinder 311 to extend and contract in the middle beam 34.

As shown in fig. 1 and 2, the upper cover 1 is composed of an inner cover and an outer cover with a cylindrical structure, the base 2 is composed of an outsole 21, an insole 22 and a middle sleeve 23 with a cylindrical structure, wherein the middle sleeve 23 is partially exposed to form a reduced diameter part 230 of the base 2, the rest part forms a main body part together with the outsole 21 and the insole 22, and the reduced diameter part 230 extends into the inner cavity of the upper cover 1 and is tightly matched with the inner wall of the upper cover to avoid falling off in a covering state of the packaging tube.

As shown in fig. 3 and 4, the cross section of the diameter-reducing portion 230 of the present invention is square, as shown in fig. 5, the corresponding upper cover 1 has a cavity 10 with a shape matching with the diameter-reducing portion 230, the cavity also has four side walls 11, the side walls 11 are provided with a buckle groove 12 and two ribs 13 arranged along the axial direction, the two ribs 13 are located at two sides of the buckle groove 12, and the height of the ribs 13 is generally not greater than 0.05 mm.

As shown in fig. 3, in the closed state, the gap between the rib 13 and the reduced diameter portion 230 is X, and the gap between the rest of the side wall 11 and the reduced diameter portion 230 is Y, which is obviously smaller than Y, so that an air duct 14 is formed between the two ribs 13, the inside of the packaging tube can be communicated with the outside atmosphere through the air duct 14, and when the packaging tube is closed or opened, the air trapping phenomenon is avoided, which causes difficulty in closing or opening. Obviously, the bead 13 may be provided with the side wall of the reduced diameter portion 230, and may perform the same function, or may be provided with two side walls at the same time.

In the covering state, the convex rib 13 is tightly matched with the opposite side wall, and the gap between the upper cover 1 and the reducing part 230 is small enough, so that the upper cover 1 is prevented from shaking. The ribs 13 may be provided on only one of the side walls 1, but are most preferably provided on all four side walls 1 to allow ventilation of each side wall.

Claims

1. The utility model provides a square packing tube, includes upper cover, well bundle core and base, the base includes that main part and cross section are square undergauge portion, the upper cover have the shape with the cavity that undergauge portion matches, its characterized in that, undergauge portion and/or at least one lateral wall of cavity has the protruding muscle of following well bundle core axial arrangement, and in the lid state of cooperateing, protruding muscle and relative lateral wall tight fit.

2. A square packing tube according to claim 1, wherein the height of the rib is 0.01 to 0.05 mm.

3. A square packing tube according to claim 1, wherein four side walls of the cavity or reduced diameter portion are provided with ribs.

4. A square packing tube according to claim 1 or 3, wherein each of said side walls is provided with two ribs, and an air passage is formed between the two ribs.

5. The square packing tube of claim 1, wherein four side walls of the reduced diameter portion are provided with fastening points, and the side wall of the cavity is provided with fastening grooves for fitting the fastening points.

6. The square packing tube of claim 1, wherein the middle bundle core comprises a bead, a spiral, a middle section and a middle bundle, the bead comprises a cylinder body positioned in the middle bundle and a transmission rod extending into the spiral, protruding points are arranged on two sides of the transmission rod, a spiral groove matched with the protruding points is arranged on the inner wall of the spiral, and the middle section is provided with a through hole for the transmission rod to pass through to limit the rotation of the middle section.

7. A square packing tube according to claim 1, wherein the upper cap is engaged with the main body in a closed state.