CN213550250U

CN213550250U - Cosmetic packaging tube capable of rotatably replacing middle bundle core

Info

Publication number: CN213550250U
Application number: CN202021306230.8U
Authority: CN
Inventors: 房永庆; 黄君杰; 朱卫锋
Original assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Current assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Priority date: 2020-07-06
Filing date: 2020-07-06
Publication date: 2021-06-29
Anticipated expiration: 2030-07-06

Abstract

The application discloses but change cosmetics packaging tube of well bundle core, including drain pan and well bundle core, well bundle core has relative top and bottom, and bottom position detachable installs in the drain pan, its characterized in that, the inner wall of drain pan has drive screw thread, the bottom of well bundle core stretch into in the drain pan and with drain pan screw-thread fit, have between drain pan and the well bundle core and restrict well bundle core and revolve out the stop gear of drain pan. This application cosmetic packaging tube is through the normal running fit of well bundle core and drain pan, is provided with the stop gear that limits both to break away from between the two, through the replacement of relative rotation can realize well bundle core, convenience simple to use.

Description

Cosmetic packaging tube capable of rotatably replacing middle bundle core

Technical Field

The application relates to the field of cosmetics, in particular to a packing tube capable of rotatably replacing a middle bundle core.

Background

The lipstick tube on the market generally comprises an upper cover, a base and a middle bundle core, wherein the middle bundle core comprises a spiral tube, a fork and beads, and the beads are containers for containing paste. The bead is provided with a protrusion, the fork is provided with a notch arranged along the axial direction, the spiral inner wall is provided with a spiral guide groove, and the protrusion penetrates through the notch and extends into the guide groove. The relative rotation of the spiral tube and the fork can cause the beads to move up and down in the fork, so that the paste body can move up and down, and the upper cover of the lipstick plays a role in isolation protection.

For environmental protection, a number of lipsticks are now marketed in which the center wick can be replaced. The lipstick comprises a bottom and a middle bundle core, wherein the middle bundle core comprises a barrel, a fork, a spiral and an aluminum middle bundle which are coaxially sleeved from inside to outside, and the fork and the bottom are designed into a connection mode of 'detachable clamping and circumferential stopping', so that the middle bundle core can be separated from and combined with the bottom through 'pulling out' and 'pressing down' operation modes on the basis of ensuring the stability of a lipstick tube structure.

The lipstick tube realizes the replacement of the middle bundle core, but the manufacturing process and the disassembly matching structure are complex and easy to damage.

SUMMERY OF THE UTILITY MODEL

To the more complicated problem of cosmetic packaging tube inner structure of present removable well bundle core, this application provides a more simple structure's packing tube.

The cosmetics packaging tube capable of rotatably replacing the middle bundle core comprises a bottom shell and the middle bundle core, wherein the middle bundle core is provided with a top end and a bottom end which are opposite, the bottom end of the middle bundle core is detachably mounted in the bottom shell, a driving thread is arranged on the inner wall of the bottom shell, the bottom of the middle bundle core extends into the bottom shell and is in threaded fit with the bottom shell, and a limiting mechanism for limiting the middle bundle core to be screwed out of the bottom shell is arranged between the bottom shell and the middle bundle core.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, a guide block matched with the driving thread is convexly arranged on the outer peripheral wall of the bottom end part of the middle bundle core;

the driving screw thread is provided with a starting end and a tail end which are opposite, the driving screw thread is provided with a limiting part which is used for keeping the guide block at the tail end and is close to the tail end, and when the middle bunch core is replaced, the guide block is forced to pass through the limiting part and move towards the starting end of the driving screw thread until the guide block is separated from the driving screw thread.

Optionally, the number and the position of the driving threads are at least two, the number and the position of the guide blocks correspond to those of the driving threads, and the guide blocks are uniformly distributed along the circumferential direction of the middle bundle core at intervals.

Optionally, the limiting portion is a protrusion that interferes with a motion path of the guide block, and an abutting portion of the protrusion and the guide block is an arc surface.

Optionally, the bottom case comprises an inner bottom and an outer bottom fixed to each other in a nested manner, the bottom end of the middle core is disposed in the inner bottom, and the driving screw is disposed on the inner wall of the inner bottom.

Optionally, a central region of the bottom end face of the middle bundle core is provided with a positioning opening, and an inner edge of the positioning opening extends towards the top end of the middle bundle core to form a cylindrical connecting sleeve; the bottom shell comprises an inner bottom and an outer bottom which are mutually nested and fixed, the inner bottom is provided with a positioning part which is raised towards the top end of the middle bundling core, and the positioning part is of a hollow columnar structure and is inserted into the connecting sleeve in an interference fit manner; the middle beam core and the inner bottom rotate relatively to drive the positioning part to be inserted into or withdrawn from the connecting sleeve.

Optionally, the inner bottom includes a first annular peripheral wall and a first bottom wall closing an end of the first peripheral wall, a central area of the first bottom wall protrudes toward the middle bundle core to form the positioning portion, and the positioning portion is open on a side facing away from the middle bundle core.

Optionally, the contact surface between the connecting sleeve and the positioning portion is a cylindrical surface.

Optionally, the edge of the positioning part on the side facing the top end of the middle bundle core is provided with a chamfer or a fillet structure.

Optionally, a top opening is formed in one side, facing the middle binding core, of the outsole, a middle sleeve is fixedly inserted into the top opening, the packaging tube further comprises an upper cover movably inserted into the middle sleeve, and the bottom shell and the upper cover enclose and store the middle binding core; the periphery of the middle sleeve is provided with a convex ring, one side of the convex ring is pressed against the edge part of the top side opening along the axial direction of the middle bundle core, and the other side of the convex ring is pressed against the upper cover.

This application cosmetic packaging tube is through the normal running fit of well bundle core and drain pan, is provided with the stop gear that limits both to break away from between the two, through the replacement of relative rotation can realize well bundle core, convenience simple to use.

Drawings

Fig. 1 is a schematic perspective view of a packing tube according to an embodiment of the present invention;

FIG. 2 is an exploded view of the packing tube of FIG. 1;

FIG. 3 is a schematic view of the tube of FIG. 2 from another perspective;

FIG. 4 is a schematic view of the connecting seat, the inner bottom and the outer bottom according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is an enlarged view of a portion of FIG. 5;

FIG. 7 is a schematic perspective view of a packing tube according to another embodiment of the present invention;

FIG. 8 is an exploded view of the packing tube of FIG. 7;

FIG. 9 is a schematic view of the tube of FIG. 8 from another perspective;

FIG. 10 is a schematic view of the connecting seat, the insole and the outsole according to another embodiment of the present invention;

fig. 11 is a sectional view taken along the direction B-B in fig. 10.

The reference numerals in the figures are illustrated as follows:

1. a core of the middle bundle; 11. a guide block;

2. a middle sleeve; 21. a first cylinder; 22. a convex ring; 23. a second cylinder;

3. an insole; 31. a drive screw; 32. a first bottom wall; 33. a limiting part; 34. a positioning part; 35. and (6) chamfering.

4. An outsole; 41. a boss structure; 42. salient points;

5. and (7) covering.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

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 a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components 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 application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The cosmetic packaging tube inner structure of removable well bundle core that uses on the market is more complicated, the utility model provides a simple but the cosmetics packaging tube of changing well bundle core can make well bundle core and base realize quickly separating and combine.

As shown in figure 1, the cosmetic packaging tube capable of rotatably replacing the middle bundle core comprises an upper cover 5, a bottom shell and the middle bundle core 1, wherein the middle bundle core 1 is provided with a top end and a bottom end which are opposite, the bottom end part of the middle bundle core 1 is detachably arranged in the bottom shell, and the upper cover 5 is matched with the bottom shell to enclose the middle bundle core 1 in an inner space.

The inner wall of the bottom shell is provided with a driving thread 31, the bottom of the middle bundling core 1 extends into the bottom shell and is matched with the bottom shell in a thread mode, and a limiting mechanism for limiting the middle bundling core 1 to be screwed out of the bottom shell is arranged between the bottom shell and the middle bundling core 1.

In one embodiment, as shown in fig. 2-3, the outer peripheral wall of the bottom end part of the middle bundling core 1 is convexly provided with a guide block 11 matched with the driving screw 31; the driving screw 31 has opposite starting and ending ends, the driving screw 31 is provided with a limiting part 33 which holds the guide block 11 at the ending end at the adjacent ending end, and when the middle bundling core 1 is replaced, the guide block 11 is forced to pass through the limiting part 33 and move to the starting end of the driving screw 31 until the driving screw 31 is separated.

In this embodiment, the middle bundle core 1 itself can adopt the prior art, for example, the middle bundle core 1 includes beads, a fork, a spiral and a middle bundle, the beads are containers for holding the paste, the fork and the spiral are rotationally matched, the fork is provided with a guide groove, the beads are installed in the fork and can slide along the guide groove, at least a part of the beads further extend out of the fork and are matched with the spiral, when the spiral rotates, the beads can be driven to slide along the guide groove to push out or hide the paste in the fork, the middle bundle is fixed with the spiral to play a role in protection and decoration, and the middle bundle and the spiral can also be integrated into a whole.

In the present embodiment, as shown in fig. 4 to 6, a screw structure having a relatively simple structure is adopted, and the positioning block is engaged with the driving screw 31 to pass over the stopper portion 33, thereby achieving the mounting and dismounting.

In one embodiment, as shown in fig. 4 and 5, the bottom case comprises an insole 3 and an outsole 4 fixed to each other in a nested manner, the bottom end of the central core 1 is in the insole 3, and the driving screw 31 is provided on the inner wall of the insole 3.

In one embodiment, the number of the driving threads 31 is at least two, the number and the positions of the guide blocks 11 correspond to those of the driving threads 31, and the guide blocks 11 are uniformly distributed along the circumferential direction of the middle bundle core at intervals. The guide block 11 is matched with the driving thread 31 to realize that the guide block 11 slowly enters or withdraws from the bottom shell in a spiral mode.

In an embodiment, as shown in fig. 6, the limiting portion 33 is a protrusion that interferes with the moving path of the guide block 11, and the abutting portion of the protrusion and the guide block 11 is a cambered surface.

As shown in fig. 6, the direction B is a moving direction of the guide block 11 relative to the driving screw 31 when the middle core 1 is installed, the guide block 11 moves along the driving screw 31 and gradually approaches the limiting portion 33 until being blocked by the limiting portion 33, at this time, further force is applied, the guide block 11 goes over the limiting portion 33 and is held at the end of the driving screw 31 under the blocking of the limiting portion 33, and since the outer surface of the limiting portion 33 contacting with the guide block 11 is arc-shaped, on one hand, a guiding function is achieved, and in addition, an operation hand feeling is smooth.

When the direction a is the moving direction of the guide block 11 relative to the driving screw 31 when the middle bundle core 1 is dismounted, because the guide block 11 is blocked by the limiting part 33, generally, the middle bundle core 1 and the bottom shell keep a stable relative relationship, when the middle bundle core 1 is dismounted, a slight force needs to be applied to relatively rotate the middle bundle core 1 and the bottom shell, the guide block 11 goes over the limiting part 33 and further moves to the starting end of the driving screw 31, and when the middle bundle core 1 and the bottom shell are separated from the starting end of the driving screw 31, the middle bundle core 1 and the bottom shell can be pulled away from each other to finish dismounting.

In an embodiment, the outsole 4 comprises a second peripheral wall in a ring shape and a second bottom wall closing the end of the second peripheral wall, and the insole 3 is integrally received and fixed inside the outsole 4;

the insole 3 and the outsole 4 can be fixed to each other in the existing way, for example, in at least one of the following ways:

the first mode is interference fit;

the second mode is bonding;

the third mode is that axial limiting structures matched with each other are arranged;

the fourth mode is that circumferential limiting structures matched with each other are arranged;

and the third and fourth modes are not used separately.

Axial limit structure can adopt bulge loop and the draw-in groove of mutually supporting, and 3 outer walls of insole for example set up the bulge loop, set up the draw-in groove at 4 inner walls of outer end, and bulge loop and draw-in groove mutually support and prevent axial dislocation between insole 3 and the outer end 4.

Circumference limit structure can adopt the location muscle of mutually supporting, for example 3 outer walls of inner bottom set up along axially extended first location muscle, set up along axially extended second location muscle at 4 inner walls of outer bottom, offset along circumference between first location muscle and the second location muscle, can prevent relative rotation between inner bottom 3 and the outer bottom 4, and circumference is spacing promptly. The positioning rib on one side can also adopt a positioning groove mode to store the positioning rib on the other side.

For the purpose of limiting in the axial direction and the circumferential direction simultaneously, the third mode and the fourth mode are not generally used independently, and are preferably used in combination with other modes.

In order to make the inner bottom 3 and the outer bottom 4 abut against each other axially and prevent the inner bottom 3 and the outer bottom 4 from being dislocated and loosened under the action of axial component force when the bottom case is separated from the core 1, in an embodiment, a central area of the second bottom wall is deformed toward the core 1 to form a boss structure 41, a plurality of convex points 42 are distributed on the boss structure 41, and the second bottom wall abuts against the first bottom wall 32 through the convex points 42.

The plurality of bumps 42 can stably support the first bottom wall 32, so that poor fitting caused by partial shape mismatch in surface contact is prevented, and when the bumps 42 are tightly abutted between the inner bottom 3 and the outer bottom 4, deformation is more easily generated to retain tension stress.

In one embodiment, the plurality of bumps 42 are distributed in a ring shape, or in a matrix of rows and columns. The pressure of the first bottom wall 32 can be well dispersed by adopting annular or matrix distribution, so that the stress is uniform.

In an embodiment, the plurality of protrusions 42 are formed by local integral deformation of the boss structure 41, i.e. the second bottom wall is processed by a processing technology. In one embodiment, the outsole 4 has a top opening facing the central core 1, the central sleeve 2 is fixedly inserted into the top opening, and the bottom shell and the upper cover 5 surround and receive the central core 1. In one embodiment, the outer periphery of the middle sleeve 2 is provided with a convex ring 22, and along the axial direction of the middle bundle core 1, one side of the convex ring 22 is pressed against the edge part of the top side opening, and the other side is pressed against the upper cover 5.

In the axial direction of the middle sleeve 2, one side of the convex ring 22 is a first cylinder 21 for being matched with the upper cover 5 in an inserting manner, the other side of the convex ring 22 is a second cylinder 23 for being matched with the outsole 4 in an inserting manner, and for facilitating assembly, the second cylinder 23 is provided with a closing-up structure and can play a role in guiding during inserting.

As shown in fig. 7-11, the cosmetic packaging tube of another embodiment of the present application comprises a bottom shell and a middle bundle core 1 detachably mounted on the bottom shell, wherein the middle bundle core 1 has a top end and a bottom end opposite to each other, a central area of an end surface of the bottom end is provided with a positioning opening, and an inner edge of the positioning opening extends towards the top end of the middle bundle core 1 to form a cylindrical connecting sleeve; the bottom shell comprises an inner bottom 3 and an outer bottom 4 which are mutually nested and fixed, the inner bottom 3 is provided with a positioning part 34 which is raised towards the top end of the middle bundling core 1, and the positioning part 34 is of a hollow columnar structure and is inserted into the connecting sleeve in an interference fit manner; the bottom end of the middle core 1 is located in the inner bottom 3, and a mutually matched thread structure is arranged between the middle core 1 and the inner bottom 3, and the middle core 1 and the inner bottom 3 rotate relatively to drive the positioning part 34 to be inserted into or withdrawn from the connecting sleeve.

In this embodiment, the positioning opening of the core 1 may be opened in a fork or a spiral, which needs to be selected and determined according to the type of the core 1.

In this embodiment, the positioning portion 34 with a relatively simple structure is adopted, and the positioning is implemented by combining an interference fit mode, and meanwhile, in order to facilitate the disassembly and assembly, a thread structure which is matched with each other is arranged between the middle bundle core 1 and the inner bottom 3, so that the force is applied to the interference fit part during the operation.

As shown in fig. 8 to 9, the first thread is provided on the outer circumference of the bottom end portion of the core 1, and the first thread may be provided in one or more, for example, two, and correspondingly, the second thread is provided on the side wall of the inner bottom 3 to be engaged with the first thread. The middle core 1 and the bottom shell can realize that the positioning part 34 can be inserted into or withdrawn from the connecting sleeve in a gradual mode through the mutually matched thread structures, and the hand feeling of operation can be further improved.

The connecting sleeve has a certain axial length, and can further support the positioning part 34 to prevent unnecessary relative shaking or dislocation between the middle bundle core 1 and the bottom shell.

In one embodiment, the insole 3 includes a first peripheral wall having a ring shape and a first bottom wall 32 closing an end of the first peripheral wall, a central area of the first bottom wall 32 protrudes toward the middle bundle core 1 to form a positioning portion 34, and the positioning portion 34 has an open structure on a side facing away from the middle bundle core 1.

The side of the positioning portion 34 facing away from the core 1 is open, which is more convenient for machining using a mold or a corresponding tool, for example, the first bottom wall is flat before machining, and the central area of the first bottom wall is axially stretched toward the core 1, thereby forming the positioning portion 34.

In order to facilitate relative rotation and increase the contact area as much as possible, in one embodiment, the contact surface between the connecting sleeve and the positioning portion 34 is a cylindrical surface.

In an embodiment, the edge of the positioning portion 34 facing the top end of the core 1 has a chamfer 35 or a fillet structure, when the positioning portion 34 is pushed into the connecting sleeve, especially in a state that the positioning portion and the connecting sleeve are just in contact, the chamfer 35 or the fillet can play a role of a transition slope, so that automatic deviation rectification can be realized, the concentricity of the positioning portion and the connecting sleeve is ensured, and the positioning portion 34 can be smoothly inserted into a positioning opening. The outsole 4 includes a second peripheral wall in an annular shape and a second bottom wall closing an end of the second peripheral wall, and the insole 3 is integrally received and fixed inside the outsole 4;

the first mode is interference fit;

the second mode is bonding;

and the third and fourth modes are not used separately.

In order to make the inner bottom 3 and the outer bottom 4 abut against each other axially and prevent the inner bottom 3 and the outer bottom 4 from being dislocated and loosened under the action of axial component force when the bottom case is separated from the core 1, in an embodiment, a central area of the second bottom wall is deformed toward the core 1 to form a boss structure 41, a plurality of convex points 42 are distributed on the boss structure 41, and the second bottom wall abuts against the first bottom wall through the convex points 42.

A plurality of bump 42 structures can stably support first diapire on the one hand, and the laminating degree that leads to because of local shape mismatch when preventing to adopt the face contact is not good, and on the other hand bump 42 structure is supported when tight between insole 3 and outsole 4, produces deformation more easily and remains tensile stress.

In one embodiment, the plurality of bumps 42 are distributed in a ring shape, or in a matrix of rows and columns. The pressure of the first bottom wall can be well dispersed by adopting annular or matrix distribution, so that the stress is uniform.

In an embodiment, the plurality of protrusions 42 are formed by local integral deformation of the boss structure 41, i.e. the second bottom wall is processed by a processing technology. In one embodiment, the outsole 4 has a top opening on a side facing the middle binding core 1, the middle sleeve 2 is fixedly inserted into the top opening, the packing tube further includes a cover movably inserted into the middle sleeve 2, and the bottom case and the cover enclose and receive the middle binding core 1. In one embodiment, the outer periphery of the middle sleeve 2 is provided with a convex ring 22, and along the axial direction of the middle bundle core 1, one side of the convex ring 22 is pressed against the edge part of the top side opening, and the other side is pressed against the cover body.

In the axial direction of the middle sleeve 2, one side of the convex ring 22 is a first cylinder 21 for being matched with the cover body in an inserting manner, the other side of the convex ring 22 is a second cylinder 23 for being matched with the outsole 4 in an inserting manner, and in order to facilitate assembly, the second cylinder 23 is provided with a closing-up structure and can play a role in guiding during inserting.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The cosmetic packaging tube capable of rotatably replacing the middle bundle core comprises a bottom shell and the middle bundle core, wherein the middle bundle core is provided with a top end and a bottom end which are opposite, and the bottom end part of the middle bundle core is detachably arranged in the bottom shell.

2. The cosmetic packaging tube of claim 1 wherein the outer peripheral wall of the bottom end portion of the core is convexly provided with a guide block which is engaged with the driving thread;

3. The cosmetic packaging tube of claim 2 wherein the drive thread is at least two, the guide blocks are in a number and position corresponding to the drive thread, and the guide blocks are evenly spaced circumferentially along the core.

4. The cosmetic packaging tube of claim 2, wherein the limiting portion is a protrusion interfering with the motion path of the guide block, and the abutting portion of the protrusion and the guide block is a cambered surface.

5. The cosmetic packaging tube of claim 1 wherein the bottom shell comprises an inner bottom and an outer bottom secured within one another, the bottom end of the central core being located within the inner bottom, the drive thread being disposed on an inner wall of the inner bottom.

6. The cosmetic packaging tube of claim 1, wherein the central area of the bottom end surface of the middle bundle core is provided with a positioning opening, and the inner edge of the positioning opening extends towards the top end of the middle bundle core to form a cylindrical connecting sleeve; the bottom shell comprises an inner bottom and an outer bottom which are mutually nested and fixed, the inner bottom is provided with a positioning part which is raised towards the top end of the middle bundling core, and the positioning part is of a hollow columnar structure and is inserted into the connecting sleeve in an interference fit manner; the middle beam core and the inner bottom rotate relatively to drive the positioning part to be inserted into or withdrawn from the connecting sleeve.

7. The cosmetic packaging tube of claim 6 wherein the inner bottom includes a first peripheral wall having an annular shape and a first bottom wall closing an end of the first peripheral wall, a central region of the first bottom wall being convex toward the center core to form the positioning portion, and the positioning portion having an open structure on a side facing away from the center core.

8. The cosmetic packaging tube of claim 6 wherein the interface of the nipple and the detent is cylindrical.

9. A cosmetic packaging tube according to claim 6, wherein the locating portion is chamfered or radiused at the edge of the side facing the top end of the core.

10. The cosmetic packaging tube of claim 5 or 6, wherein the outer sole has a top opening on a side facing the middle core, a middle sleeve is fixedly inserted into the top opening, the packaging tube further comprises an upper cover movably inserted into the middle sleeve, and the bottom shell and the upper cover enclose and receive the middle core; the periphery of the middle sleeve is provided with a convex ring, one side of the convex ring is pressed against the edge part of the top side opening along the axial direction of the middle bundle core, and the other side of the convex ring is pressed against the upper cover.