CN219770443U - Packaging tube capable of replacing middle beam core - Google Patents

Abstract

The utility model discloses a packaging tube with a replaceable middle binding core, which comprises a base and the middle binding core which is in plug-in fit with the base, wherein the middle binding core comprises a paste storage element, a driving element and a guiding element, the paste storage element comprises a paste storage cylinder and a transmission rod connected with the paste storage cylinder, the driving element is provided with a spiral groove which is matched with the transmission rod to drive the paste storage cylinder to move, the guiding element is provided with a through hole which is matched with the transmission rod to limit the relative rotation of the two parts, the bottom of the base is provided with a slot which is matched with the driving element, and the inner wall of the slot is provided with a rotation stopping part which is used for limiting the rotation of the driving element and an anti-falling part which is used for limiting the separation of the driving element. The utility model realizes the plug-in replacement of the middle beam core by matching the driving element with the slot of the base, and compared with the prior art of adding other extra parts to realize the plug-in replacement, the structure is simpler, and the manufacturing cost is reduced.

Description

Packaging tube capable of replacing middle beam core

Technical Field

The utility model relates to a packaging tube, in particular to a packaging tube with a replaceable middle beam core.

Background

The packing tube can be used for containing cosmetics and the like and mainly comprises an upper cover, a base and a middle beam core, wherein the base and the middle beam core are inseparable, so that the middle beam core cannot be replaced, and when the paste is used up, the paste can only be discarded completely, thereby causing waste and environmental burden.

In order to solve the above problems, patent document with publication number CN211211830U discloses a packaging tube with replaceable middle binding core, comprising a bottom shell, beads, a screw, a middle binding core and a liner, wherein the liner is fixed with the middle binding core, the screw is in running fit with the liner, a connecting piece with an integral or split structure is arranged on the screw, an anti-rotation structure matched with the connecting piece is arranged between the connecting piece and the bottom shell, an axial anti-release piece magnetically attracted with the connecting piece is also arranged on the bottom shell, the middle binding core is in movable plug-in fit with the bottom shell, and a consumer pulls out the middle binding core outwards for replacement during replacement. However, the structure is complex, the components are more, and the cost is higher.

Disclosure of Invention

The utility model provides a packaging tube with a replaceable middle beam core, which solves the problems of more integral parts and complex structure of the packaging tube in the prior art.

The utility model provides a packing tube of beam core in interchangeable, include the base and with the base grafting complex well beam core, well beam core includes stores up cream component, actuating element and guide element, store up the cream component and include the transfer line that stores up the cream section of thick bamboo and connect, the actuating element has the helicla flute that cooperates with the transfer line in order to drive the cream section of thick bamboo activity of storing up, guide element has the through-hole that cooperates with the transfer line and restrict both relative rotations, the bottom of base be provided with actuating element complex slot, the inner wall of slot is provided with the anti-drop portion that limits actuating element pivoted and the restriction actuating element breaks away from.

The following provides several alternatives, but not as additional limitations to the above-described overall scheme, and only further additions or preferences, each of which may be individually combined for the above-described overall scheme, or may be combined among multiple alternatives, without technical or logical contradictions.

Optionally, the base is cylindrical structure and bottom is sealed on the whole, the bottom is fixed with the plug bush, the inside of plug bush is as the slot, supplies the actuating element is put into.

Optionally, a first gap is reserved between the outer wall of the plug bush and the side wall of the cylindrical structure for the guiding element to be placed in; the length of the extension of the bottom side of the guide element along the axial direction of the base is not less than the length of the driving element.

Optionally, the rotation stopping part is a limiting groove distributed on the inner wall of the plug bush, and a limiting rib matched with the limiting groove is arranged on the periphery of the driving element.

Optionally, the limit groove is opened at the inner side and the top side of the plug bush.

Optionally, the notch of the limiting groove towards the top side of the plug bush is of a flaring structure.

Optionally, an isolation rib is arranged between two adjacent limit grooves, and the top end of the isolation rib is folded into a sharp top.

Optionally, the limit groove is strip-shaped, and the extending direction is consistent with the axial direction of the base; the limit grooves are formed in a plurality of ways, and the limit grooves are distributed along the circumferential direction of the base.

Optionally, the anti-disengaging part is a positioning boss protruding from the inner wall of the plug bush.

Optionally, the top edge part of the plug bush is provided with a plurality of elastic arms which are arranged at intervals along the circumferential direction, and the positioning boss is positioned on the corresponding elastic arm.

The utility model realizes the plug-in replacement of the middle beam core by matching the driving element with the slot of the base, and compared with the prior art of adding other extra parts to realize the plug-in replacement, the structure is simpler, and the manufacturing cost is reduced.

Drawings

FIG. 1 is a schematic view of the structure of an alternative middle-bundle core packing tube of the present utility model;

FIG. 2 is an exploded view of an alternative middle core packaging tube of the present utility model;

FIG. 3 is a schematic diagram of the driving element in FIG. 2;

FIG. 4 is a cross-sectional view of the drive member of FIG. 3;

fig. 5 is a cross-sectional view of the base.

Reference numerals in the drawings are described as follows:

10. a paste storage element; 11. a paste storage cylinder; 12. a transmission rod;

20. a guide member; 21. a through hole;

30. a driving element; 31. a spiral groove; 32. a convex ring; 33. a limit rib;

40. a base; 41. a slot; 43. positioning the boss; 44. a plug bush; 45. a first gap; 46. a limit groove; 47. isolation ribs; 48. an elastic arm;

50. a decorative element.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

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

Referring to fig. 1 to 5, the present utility model provides a packaging tube with a replaceable middle bundle core, which comprises a base 40 and a middle bundle core in plug-in fit with the base 40, wherein the middle bundle core has opposite top and bottom ends, and specifically comprises a paste storage element 10, a driving element 30 and a guiding element 20.

The paste storage element 10 includes a paste storage barrel 11 and a transmission rod 12 connected with the paste storage barrel 11, the transmission rod 12 is flat, threads are arranged on two sides of a narrow side, the guide element 20 is provided with a through hole 21 matched with the transmission rod 12 to limit the two to rotate relatively, namely, the shape of the through hole 21 is adapted to the transmission rod 12, so that the paste storage element 10 can move up and down and limit the circumferential rotation of the paste storage element. The driving element 30 is provided with a spiral groove 31 which is matched with the transmission rod 12 to drive the paste storage barrel 11 to move, namely, the transmission rod 12 passes through the through hole 21 and then stretches into the driving element 30, and the threads are matched with the spiral groove 31 to enable the paste storage element 10 to move up and down.

The bottom of the base 40 is provided with a slot 41 which is matched with the driving element 30, and the inner wall of the slot 41 is provided with a rotation stopping part which limits the rotation of the driving element 30 and a falling-preventing part which limits the falling-off of the driving element 30. The rotation stopping part is used for circumferential limitation, the anti-falling part is used for axial limitation, when the middle beam core needs to be replaced, the driving element 30 is separated from the anti-falling part by applying force, the middle beam core can be pulled out of the slot 41 at the moment, and then a new middle beam core is inserted into the slot 41 of the base 40 until being matched with the rotation stopping part and the anti-falling part.

The utility model realizes the insertion and extraction replacement of the middle beam core by matching the driving element 30 with the slot 41 of the base 40, and compared with the prior art of adding other extra components to realize the insertion and extraction replacement, the utility model has simpler structure and reduced manufacturing cost.

Referring to fig. 5, the base 40 is of a cylindrical structure as a whole and has a closed bottom, a socket 44 is fixed at the bottom, the interior of the socket 44 is used as a slot 41 for placing the driving element 30, wherein the socket 44 is located at the middle position of the base 40, a first gap 45 is reserved between the outer wall and the side wall of the cylindrical structure, and the first gap 45 is used for placing the guiding element 20.

Of course, in view of protecting the paste and increasing the aesthetic degree, the outer circumference of the guide member 20 is further provided with a decoration member 50, the length of the decoration member 50 is longer than that of the guide member 20, and when the paste is not used, the paste is hidden in the decoration member 50, and when the paste is needed to be used, the driving member 30 is rotated relative to the transmission rod 12, so that the paste can be used after being rotated out of the decoration member 50. In this embodiment, the bottom end of the guiding element 20 is provided with a flange, and one end of the decorative element 50 abuts against the flange.

Along the axial direction of the base 40, the length of the bottom side of the guide element 20 is not smaller than the length of the driving element 30, i.e. the driving element 30 is wrapped by the guide element 20, so that the driving element 30 cannot be rotated when the base 40 is not matched, and the problem that the middle beam core can be used independently is avoided.

When the middle beam core is assembled, the guide element 20 and the decoration element 50 are coated and fixed by glue, after the glue is solidified, the transmission rod 12 of the paste storage element 10 is inserted into the through hole 21 from the top end of the guide element 20, then the transmission rod 12 is rotated and screwed into the spiral groove 31 of the driving element 30 by using a customized jig, and the transmission rod 12 is rotated to be in place (at the moment, the bottom of the paste storage barrel 11 is propped against the top of the guide element 20), so that the middle beam core is assembled. In this embodiment, the decoration element 50 is made of aluminum, and the rest of the middle beam core is made of pet.

In an embodiment, the rotation stopping portion is a limiting groove 46 distributed on the inner wall of the plugging sleeve 44, and the periphery of the driving element 30 is provided with a limiting rib 33 matched with the limiting groove 46.

The limiting groove 46 is opened on the inner side and the top side of the plugging sleeve 44, so that the limiting rib 33 of the guiding element 20 is inserted into the plugging sleeve 44 as much as possible, and the shaking problem caused by insufficient plugging depth is avoided.

Further, the notch of the limiting groove 46 facing the top side of the plug bush 44 is in a flaring structure, the isolating ribs 47 are arranged between two adjacent limiting grooves 46, the top end shape of each isolating rib 47 is folded into a sharp peak, the flaring design can correct deviation, the limiting ribs 33 of the driving element 30 can be conveniently inserted, and of course, the bottom of the limiting ribs 33 of the driving element 30 is also in a sharp peak structure so as to be led into the limiting groove 46. The spacing groove 46 is specifically a bar, and the extending direction is consistent with the axial direction of the base 40, the spacing groove 46 is multiple, and the spacing ribs 33 of the driving element 30 are arranged along the circumferential direction of the base 40 in this embodiment, and are uniformly arranged, and of course, the specific number of the spacing ribs 33 can be set according to the requirement, and the specific requirement is not applied.

As shown in fig. 1 and 5, the anti-falling portion is a positioning boss 43 protruding from the inner wall of the plug bush 44, the top edge of the plug bush 44 is provided with a plurality of elastic arms 48 circumferentially spaced, the positioning boss 43 is located on the corresponding elastic arm 48, and the driving element 30 is provided with a convex ring 32 matched with the anti-falling portion. In the present embodiment, the number of the elastic arms 48 is 4, and the positioning bosses 43 are disposed near the top of the elastic arms 48, and are uniformly distributed.

When the middle beam core needs to be replaced, opposite force is applied to the base 40 and the middle beam core, at the moment, the elastic arms 48 are stressed to incline outwards, so that the convex rings 32 are separated from the positioning bosses 43, the middle beam core can be easily pulled out, then a new middle beam core is inserted into the base 40, the limit ribs 33 of the driving element 30 are inserted into the limit grooves 46 smoothly under the action of the flaring when the middle beam core is specifically inserted until the convex rings 32 are abutted against the positioning bosses 43, at the moment, further force is applied, and the elastic arms 48 incline towards the periphery under the action of the convex rings 32 until the convex rings 32 enter the positioning bosses 43 to be clamped, at the moment, the elastic arms 48 are reset, and the replacement of the middle beam core is completed.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description. When technical features of different embodiments are embodied in the same drawing, the drawing can be regarded as a combination of the embodiments concerned also being disclosed at the same time.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model.

Claims (10)

1. The utility model provides a packing tube of beam core in interchangeable, includes the base and with the base grafting complex well beam core, well beam core includes stores up cream component, actuating element and guide element, store up the cream component and include the transfer line that stores up the cream section of thick bamboo and connect, the actuating element has the helicla flute that cooperates with the transfer line in order to drive the activity of storing up the cream section of thick bamboo, guide element has the through-hole that cooperates with the transfer line and restrict both relative rotations, a serial communication port, the bottom of base be provided with actuating element complex slot, the inner wall of slot is provided with the anti-drop portion that limits actuating element pivoted and limits actuating element to break away from.

2. The packaging tube of the replaceable medium bundle core according to claim 1, wherein the base is of a cylindrical structure as a whole and is closed at the bottom, and a plug bush is fixed at the bottom, and the plug bush is used as the slot for placing the driving element inside.

3. The package tube of the replaceable intermediate core according to claim 2, wherein a first gap is left between the outer wall of the plug bush and the side wall of the cylindrical structure for the guide element to be inserted; the length of the extension of the bottom side of the guide element along the axial direction of the base is not less than the length of the driving element.

4. The packaging tube with the replaceable middle beam core as claimed in claim 2, wherein the rotation stopping part is a limiting groove distributed on the inner wall of the plug bush, and a limiting rib matched with the limiting groove is arranged on the periphery of the driving element.

5. The tube of claim 4, wherein the limiting slot is open to the inside and top side of the sleeve.

6. The package tube of claim 4, wherein the notch of the limiting groove facing the top side of the plug bush is a flaring structure.

7. The packaging tube of claim 5, wherein a spacer rib is disposed between two adjacent limiting grooves, and the top end of the spacer rib is shaped like a sharp peak.

8. The packaging tube of the replaceable medium beam core of claim 4, wherein the limit groove is strip-shaped, and the extending direction is consistent with the axial direction of the base; the limit grooves are formed in a plurality of ways, and the limit grooves are distributed along the circumferential direction of the base.

9. The packaging tube of claim 2, wherein the anti-drop portion is a positioning boss protruding from an inner wall of the socket.

10. The package tube of claim 9, wherein the top edge of the sleeve is provided with a plurality of elastic arms circumferentially spaced apart, and the positioning boss is located on the corresponding elastic arm.