CN211483321U

CN211483321U - Push-button type replaceable packing tube

Info

Publication number: CN211483321U
Application number: CN201921565323.XU
Authority: CN
Inventors: 房永庆; 王林斌; 黄君杰; 朱卫锋; 倪伯坤; 徐沛军
Original assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Current assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-09-15
Anticipated expiration: 2029-09-19

Abstract

The application provides a push-button replaceable packing tube, which comprises a bottom shell and a middle bundle core arranged in the bottom shell, wherein the bottom shell comprises an outer bottom and an inner bottom which are nested and matched with each other in a sliding mode, the inner bottom is provided with a first working position and a second working position on a sliding path, and a positioning structure which is matched with each other to keep the inner bottom at the corresponding working position is arranged between the inner bottom and the outer bottom; an elastic claw is arranged in the inner bottom, the middle bundling core is detachably inserted in the inner bottom, and the middle bundling core is provided with a limiting part matched with the elastic claw; the outer sole is provided with a driving piece which is acted with the elastic claw, the elastic claw has a locking state which is clamped with the limiting part under the action of the driving piece and an unlocking state which releases the limiting part, and when the inner sole is switched at different working positions, the driving piece correspondingly acts on the elastic claw to switch the state. The utility model provides a packing tube is replaceable to button, can realize that well bundle core is replaceable.

Description

Push-button type replaceable packing tube

Technical Field

The application relates to the technical field of cosmetic packaging, in particular to a push-button replaceable packaging tube.

Background

The existing packing tube on the market at present comprises a middle bundle core and a bottom shell, and the middle bundle core cannot be sold independently due to inseparability of the middle bundle core and the bottom shell. With the development of market demands, demands for replacing the middle bundle core are gradually generated, and the existing packaging tube technology cannot meet the demands.

SUMMERY OF THE UTILITY MODEL

In view of the above, there is a need to provide a push button type replaceable packing tube, which is suitable for the problem of inseparability of the core and the bottom case in the prior art.

In order to achieve the purpose, the following technical scheme is adopted in the application: a push-button replaceable packing tube comprising a bottom shell and a central core mounted within said bottom shell, said bottom shell comprising an outer bottom and an inner bottom nested and slidingly engaged with each other, wherein said inner bottom has a first working position and a second working position on a sliding path, and positioning means are provided between said inner bottom and said outer bottom cooperating to hold said inner bottom in the respective working positions;

the insole is internally provided with an elastic claw, the middle bundling core is detachably inserted into the insole, and the middle bundling core is provided with a limiting part matched with the elastic claw;

the outer sole is provided with a driving piece which is acted with the elastic claw, the elastic claw has a locking state which is clamped with the limiting part under the action of the driving piece and releases an unlocking state of the limiting part, and when the inner sole is switched at different working positions, the driving piece correspondingly acts on the elastic claw to switch the state.

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, the positioning structure includes:

the clamping tongue is arranged on the inner bottom and extends outwards along the radial direction of the inner bottom;

the bayonet socket, the bayonet socket set up on the outsole and with the bayonet socket cooperatees, the bayonet socket includes first bayonet socket and second bayonet socket, the bayonet socket is in first work position or second work position correspond respectively and block into first bayonet socket or second bayonet socket.

Optionally, the outsole comprises:

the inner bottom is slidably mounted in the middle sleeve, and the first bayonet and the second bayonet are both arranged on the middle sleeve;

and a button abutting against the clamping tongue is further embedded on the outer sleeve, and the clamping tongue is separated from the bayonet where the clamping tongue is located under the action of the button.

Optionally, the outer sleeve is provided with a button mounting opening, and the middle sleeve is provided with a button limiting opening; the button includes:

the button body can be radially and floatingly embedded in the button mounting opening;

the pin is fixed on the button body and is overlapped on the edge of the button mounting opening;

the limiting clamping hook is fixed on the inner wall of the button body and matched with the button limiting opening;

and the extrusion salient points are fixed on the inner wall of the button body and are abutted against the clamping tongues.

Optionally, the inner bottom is cup-shaped, a through hole is formed in the bottom of the cup, and the elastic clamping claws are distributed around the through hole;

the driving piece is columnar and extends into the inner bottom through the through hole, and radially abuts against the elastic claw;

the elastic clamping jaws axially move relative to the driving piece, and the elastic clamping jaws radially swing to switch states.

Optionally, the inner bottom and the outer bottom are further provided with a pressure spring for driving the inner bottom into the second working position.

Optionally, the elastic claw comprises a root part and a claw head;

when the claw head is in the first working position, the root part and the claw head are radially abutted against the driving piece to push the claw head to expand outwards to enter a locking state;

when the claw head is in the second working position, the claw head is separated from the driving piece, and the claw head elastically and radially contracts and enters an unlocking state.

Optionally, the number of the elastic clamping jaws is 2-4, and each elastic clamping jaw surrounds the driving piece and is distributed and abutted against the outer wall of the driving piece.

Optionally, the limiting part includes:

the elastic clamping jaw is arranged in the middle binding core, the jack is arranged at the bottom of the middle binding core, the inner wall of the jack is provided with a limiting step, and the elastic clamping jaw extends into the jack and is overlapped on the limiting step in a locking state.

Optionally, the middle bundle core sequentially includes from inside to outside:

beads for carrying a paste;

a fork rotatably limiting the inner bottom and used for accommodating and guiding the axial movement of the beads;

the spiral is rotatably sleeved on the periphery of the fork and used for driving the beads to move axially;

the middle beam is fixedly sleeved on the periphery of the spiral;

the limiting part is arranged at the bottom of the fork.

The utility model provides a packing tube can be replaced to push button type realizes the relative separation of insole and outsole through pressing location structure, and the driving piece of outsole acts on the elasticity jack catch of insole, and the elasticity jack catch cooperatees with spacing portion and realizes locking and the unblock between insole and the well core of restrainting, has realized the dismantlement of well core of restrainting and has replaced.

Drawings

FIG. 1 is a perspective view of a push button type replaceable packing tube according to an embodiment of the present application;

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

FIG. 3 is a schematic view of the tube of FIG. 1 from another perspective;

FIG. 4 is a schematic cross-sectional view A-A of the packing tube of FIG. 3;

FIG. 5 is an enlarged fragmentary view of the tube wrapper of FIG. 4 at A;

FIG. 6 is an enlarged fragmentary view of the tube wrapper of FIG. 4 at B;

FIG. 7 is a schematic view of the construction of the outer sleeve of the packing tube shown in FIG. 2;

FIG. 8 is a schematic view of the construction of the middle sleeve of the packing tube shown in FIG. 2;

FIG. 9 is a schematic view of the middle sleeve shown in FIG. 8 from another perspective;

FIG. 10 is a schematic view of the construction of the push button in the packing tube shown in FIG. 2;

FIG. 11 is a schematic view of the construction of the insole in the packing tube shown in FIG. 2;

FIG. 12 is a schematic view of the insole of FIG. 11 shown in another perspective;

FIG. 13 is a schematic view of the assembly structure of the fork and the bead in the packing tube shown in FIG. 4;

FIG. 14 is a schematic view of the fork shown in FIG. 13;

FIG. 15 is a cross-sectional view of the fork of FIG. 14 at B-B;

FIG. 16 is a schematic view of the construction of the helix in the packing tube shown in FIG. 4;

fig. 17 is a schematic view of the spiral of fig. 16 from another perspective.

The reference numerals in the figures are illustrated as follows:

100. packaging the tube; 10. a bottom case; 11. an outsole; 111. a drive member; 112. a middle sleeve; 1121. a button limiting opening; 1122. a limiting groove; 1123. a socket; 113. a jacket; 1131. a button mounting port; 1132. a limiting bulge; 114. a button; 1141. a button body; 1142. a pin; 1143. a limit hook; 1144. extruding the salient points; 115. sliding the convex strip; 12. an insole; 121. an elastic claw; 1211. a root portion; 1212. a claw head; 122. a through hole; 123. a sliding clamping groove; 13. a positioning structure; 131. a latch; 1311. a limiting surface; 1312. a guide ramp; 132. a bayonet; 1321. a first bayonet; 1322. a second bayonet; 14. a pressure spring; 20. A core of the middle bundle; 21. a limiting part; 211. a jack; 212. a limiting step; 22. beads; 23. a fork; 231. Positioning ribs; 24. spiraling; 25. and (4) medium beam.

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.

Referring to fig. 1 to 6 together, an embodiment of the present application provides a packing tube 100 for replacing the core 20, and the packing tube 100 can be used for placing lipstick paste and the like.

The packaging tube 100 includes a bottom case 10 and a middle core 20, wherein a lipstick cover can be mounted on the middle core 20, and the lipstick cover and the bottom case 10 cooperate to use a closed lipstick body. The middle bundle core 20 is installed in the bottom case 10, and the middle bundle core 20 is inserted into the bottom case 10 and can be detached from the bottom case 10 in a detachable insertion manner, that is, the middle bundle core 20 and the bottom case 10 are detachably installed, so as to facilitate replacement of the middle bundle core 20. The middle core 20 and the bottom shell 10 both have an axis and the two axes coincide. Since the core 20 is not a major improvement of the present application, any adaptable core 20 of the prior art may be used, but modified embodiments of the core 20 are also provided below.

The bottom case 10 comprises an outsole 11 and an insole 12, wherein the outsole 11 is nested on the periphery of the insole 12, the outsole 11 is in sliding fit with the insole 12, the insole 12 can form a sliding path relative to the outsole 11, the insole 12 has a first working position and a second working position on the sliding path, the packaging tube 100 is in a locking state when the insole 12 is in the first working position, and the packaging tube 100 is in an unlocking state when the insole 12 is in the second working position.

The outsole 11 and the insole 12 are provided with mutually cooperating locating formations 13 to fix the relative positions of the outsole 11 and the insole 12, and to maintain the insole 12 in the respective operative positions. For example, when the insole 12 is in the first working position, the positions of the insole 12 and the outsole 11 can be fixed relative to each other due to the positioning structure 13; when the insole 12 is slid relative to the outsole 11 to the second operating position, the insole 12 is similarly maintained in the second operating position by the retaining structure 13. Before the inner bottom 12 slides axially, the positioning structure 13 releases the axial positioning function, and the inner bottom 12 slides relatively. Wherein the force of the insole 12 to produce relative sliding can be an external force, such as pulling the insole 12, or by providing a driving assembly to act on the insole 12. It is understood that the positioning structure 13 can be a snap structure, a latch structure, a lock structure, or the like. When the inner bottom 12 is switched from the first working position to the first working position, the positioning structure 13 can be pressed to separate the outer bottom 11 from the inner bottom 12, so that the working positions can be changed.

Specifically, an elastic claw 121 is arranged in the insole 12, the middle bundle core 20 is provided with a limiting part 21, the elastic claw 121 and the limiting part 21 cooperate to realize axial positioning between the middle bundle core 20 and the insole 12, and the middle bundle core 20 is inserted into the insole 12. When the elastic claw 121 is separated from the limiting part 21, the middle bundle core 20 is released from the axial positioning with the insole 12, and the middle bundle core 20 can be removed from the insole 12, so that the purpose that the middle bundle core 20 can be detachably inserted into the insole 12 is realized.

The outsole 11 is provided with a driving member 111 which interacts with the elastic claw 121, and under the action of the driving member 111, the elastic claw 121 is engaged with the limiting part 21 to realize the axial positioning between the middle core 20 and the insole 12, so as to form a locking state. When the elastic claw 121 releases the stopper 21, an unlocked state is formed.

When the inner bottom 12 is switched between different operating positions, the driving member 111 acts on the resilient pawl 121 to switch the state. When the insole 12 is in the first working position, the positions of the insole 12 and the outsole 11 are relatively fixed by the positioning structure 13, and the driving element 111 of the outsole 11 acts on the elastic claw 121 of the insole 12, so that the elastic claw 121 and the limiting part 21 form a locking state, and the central core 20 is locked in the insole 12. After the axial positioning between the insole 12 and the outsole 11 is released, when the insole 12 is slid relative to the outsole 11 and switched to the second working position, the driving member 111 releases the elastic latch 121, the elastic latch 121 and the limiting portion 21 form an unlocked state, and the insole 12 is positioned between the insole 12 and the outsole 11 at the second working position again through the positioning structure 13.

The present embodiment provides a packing tube 100, which realizes the relative separation of the insole 12 and the outsole 11 by pressing the positioning structure 13, the driving element 111 of the outsole 11 acts on the elastic claw 121 of the insole 12, the elastic claw 121 cooperates with the limiting part 21 to realize the locking and unlocking between the insole 12 and the middle bundle core 20, and the detachable replacement of the middle bundle core 20 is realized.

Referring to fig. 7 to 12, in another embodiment, the inner bottom 12 is slidably engaged with the outer bottom 11, the outer wall of the inner bottom 12 is provided with a sliding groove 123, and the inner wall of the outer bottom 11 is provided with a sliding protrusion 115 engaged with the sliding groove 123. The sliding ribs 115 snap into the sliding grooves 123 to circumferentially position the insole 12 with the outsole 11. The number of the slide grooves 123 is at least one, for example, 2, 3, or 4, and the like, and the slide grooves 123 are distributed along the circumferential direction of the inner bottom 12, and the number of the slide grooves 123 is preferably 2. The bottom of the sliding slot 123 is provided with a flaring structure, which is convenient for realizing the purpose of clamping the inner bottom 12 into the outer bottom 11. It can be understood that the sliding locking groove can also be arranged on the inner wall of the outer sole 11, and the sliding convex strip is correspondingly arranged on the outer wall of the inner sole 12.

In another embodiment, the positioning structure 13 between the insole 12 and the outsole 11 comprises a latch tongue 131 and a bayonet 132 cooperating with the latch tongue 131, the latch tongue 131 is disposed on the insole 12, the bayonet 132 is opened on the outsole 11, the latch tongue 131 extends radially outwards along the insole 12, has a turning-out tendency, i.e. is at least partially convex radially outwards, and extends into the bayonet 132 to form a snap-fit state to realize axial positioning between the insole 12 and the outsole 11.

The bayonet 132 comprises a first bayonet 1321 and a second bayonet 1322, and when the insole 12 is in the first working position, the clamping tongue 131 is clamped in the first bayonet 1321; the inner bottom 12 is at the second working position, and the latch tongue 131 is clamped into the second latch opening 1322. Specifically, the first bayonet 1321 and the second bayonet 1322 are arranged and distributed along the axial direction of the outsole 11. In the preferred embodiment, the latch 131 is of unitary construction with the insole 12.

In another embodiment, the outsole 11 comprises a middle sleeve 112 and an outer sleeve 113 nested with each other, the middle sleeve 112 and the outer sleeve 113 are substantially cylindrical, the insole 12 is slidably mounted in the middle sleeve 112, the middle sleeve 112 is provided with a limiting groove 1122, the inner wall of the outer sleeve 113 is provided with a limiting protrusion 1132, and the limiting protrusion 1132 is matched with the limiting groove 1122 to realize nesting. It is understood that the limiting protrusion may be formed on the middle sleeve 112, and the limiting groove may be formed on the outer sleeve 113.

The outer sleeve 113 is embedded with a button 114, the button 114 abuts against the latch tongue 131, and under the action of the button 114, the latch tongue 131 is separated from the bayonet 132, so that the disassembly of the bundling core in the button control is realized. The middle sleeve 112 is provided with a first bayonet 1321 and a second bayonet 1322, it can be understood that, in the first working position, the latch 131 is clamped in the first bayonet 1321, and the button 114 abuts against the latch 131. In the process of switching the first working position to the second working position, the button 114 is pressed, the button 114 presses the latch tongue 131, the latch tongue 131 is separated from the first bayonet 1321, the axial positioning between the outsole 11 and the insole 12 is released, the insole 12 moves axially relative to the outsole 11, and when the latch tongue 131 slides to the second bayonet 1322, the latch tongue 131 is clamped into the second bayonet 1322 to realize the axial positioning, so that the insole 12 is kept at the second working position.

The end of the latch 131 is a limiting surface 1311 abutting against the inner edge of the corresponding bayonet, and is generally a plane, the outer side of the limiting surface 1311 is provided with a guiding inclined surface 1312, when the core is reset, the guiding inclined surface 1312 of the latch 131 contacts with the bottom edge of the second bayonet 1322, and guides the latch 131 to be retracted inwards in the radial direction, until the first bayonet 1321 is reached, the latch 131 is expanded and clamped into the first bayonet 1321 again under the self-elasticity, that is, the limiting surface 1311 abuts against the top edge of the first bayonet 1321.

In another embodiment, the casing 113 defines a button mounting opening 1131, and the button mounting opening 1131 is used for nesting the button 114 in the casing 113. The button 114 includes a button body 1141 and a pin 1142, the pin 1142 is fixed on the button body 1141, the button body 1141 is radially and floatingly inserted into the button mounting opening 1131, and the pin 1142 is overlapped on the edge of the button mounting opening 1131. It is understood that the button body 1141 is displaced in a radial direction of the outer sleeve 113 by being pressed by an external force.

The inner wall of the button body 1141 is fixedly provided with a squeezing salient point 1144, the squeezing salient point 1144 is abutted against the latch tongue 131, when the button body 1141 is pressed radially, the squeezing salient point 1144 moves radially to force the latch tongue 131 to leave the bayonet 132, and the positioning effect is released. The inner wall of the button body 1141 is fixedly provided with a limiting hook 1143, the middle sleeve 112 is provided with a button limiting opening 1121, the limiting hook 1143 is matched with the button limiting opening 1121 for limiting the radial movement of the button 114, so that the floating embedding of the button body 1141 is realized, and the button 114 is prevented from falling off.

It is understood that the axial position of the position-limiting hooks 1143 can be flush with the extruding protrusions 1144 or distributed along the axial direction. The button-limiting opening 1121 may be in communication with or shared by the first bayonet 1321 or the second bayonet 1322, or the button-limiting opening 1121 may be separately provided on the middle sleeve 112. In one embodiment, the axial position of the position-limiting hook 1143 is flush with the protruding point 1144, and the button position-limiting opening 1121 is shared with the first bayonet 1321. When the button 114 is not pressed, the limit hook 1143 is engaged with the first bayonet 1321 for limiting, and when the button 114 is pressed, the limit hook 1143 moves toward the inner diameter direction and is radially separated from the button limit opening 1121.

Furthermore, the middle sleeve 112 is provided with a socket 1123, and the pin 1142 is inserted into the socket 1123 through the button mounting hole 1131, so as to realize that the pin 1142 is overlapped on the edge of the button mounting hole 1131. The number of pins 1142 is at least one, and preferably two, for the sockets 1123.

Specifically, the radial extension length of the limit hook 1143 is greater than the extrusion bump 1144. The radial length of the crush lobes 1144 is preferably selected to be the wall thickness of the sleeve 112, such that the crush lobes 1144 squeeze the latch 131 out of the bayonet 132. The radial length of the limiting hook is more than twice the wall thickness of the middle sleeve 112. When the latch tongue 131 is engaged with the bayonet 132, the outer diameter of the latch tongue 131 is flush with the outer diameter of the middle sleeve 112.

In the present application, the state of the elastic claw 121 is switched by using the change of the interaction between the driving member 111 and the elastic claw 121 when the insole 12 is in two different working positions, in one embodiment, referring to fig. 6, 11 and 12, the insole 12 is cup-shaped, the height of the extension of the insole 12 along the axial direction is lower than that of the middle sleeve 112, the bottom of the cup is provided with a through hole 122, and the elastic claws 121 are distributed around the through hole 122. The driving member 111 is cylindrical, the driving member 111 extends into the insole 12 through the through hole 122 and radially abuts against the elastic claw 121, and the elastic claw 121 is expanded by being radially pressed by the driving member 111, so that the inner wall of the elastic claw 121 abuts against the outer wall of the driving member 111. The elastic claw 121 is clamped with the limiting part 21 of the middle binding core 20, so that the locking state of the middle binding core 20 installed on the inner bottom 12 is realized, and the inner bottom is in a first working position.

When the latch 131 is separated from the first bayonet 1321, the axial positioning of the insole 12 and the outsole 11 is released, the elastic claw 121 axially moves relative to the driving member 111, the elastic claw 121 moves upward in the orientation of fig. 6, the radial supporting force of the driving member 111 on the elastic claw 121 is gradually lost, the elastic claw 121 swings radially inward under the action of its own elasticity, the outer diameter surrounded by the elastic claw 121 is gradually reduced, the insertion between the elastic claw 121 and the limiting portion 21 of the middle lacing core 20 is gradually released to switch to the unlocking state, and the insole enters the second working position.

In order to facilitate the replacement of the midsole 20, in another embodiment the insole 12 and the outsole 11 are also provided with a compression spring 14 for driving the insole 12 into the second operating position. In the first operating position, the compression spring 14 is in a compressed state, and when the latch 131 is disengaged from the first catch 1321, the compression spring 14 drives the inner bottom 12 to move axially relative to the outer bottom 11, i.e. the resilient latch 121 moves axially relative to the driving member 111. Specifically, the compression spring 14 is installed at the bottom position of the insole 12 and sleeved on the periphery of the insole 12. The inner bottom 12 is recessed to form a groove, the outer diameter of the groove is smaller than the outer diameter of the inner bottom 12, and the outer wall of the groove and the middle sleeve 112 form a containing space, referring to fig. 4, the containing space can contain the compression spring 14. In the absence of the compression spring 14, the insole 12 can be manually driven to move axially.

In order to make the elastic claw 121 more sensitively respond to the relative displacement between the driving member 111, in an embodiment, the elastic claw 121 includes a root 1211 and a claw head 1212, the root 1211 and the claw head 1212 are fixedly connected and are an integral structure, in the first working position, both the root 1211 and the claw head 1212 radially abut against the driving member 111 to push the claw head 1212 to expand outward into a locking state, and in the locking state, the claw head 1212 cooperates with the limiting portion 21 to realize axial limiting; in the second operating position, the claw head 1212 is disengaged from the driving member 111, and the claw head 1212 elastically contracts in the radial direction, so that the claw head 1212 is disengaged from the stopper 21, and enters an unlocked state. It is understood that the disengagement of the resilient latch 121 from the stopper 21 can be achieved by changing the radial abutment force or the position of the application of force. For example, the driver 111 itself may be radially contracted by varying the amount of radial expansion of the driver 111 to vary the abutment force of the driver 111 against the resilient dogs 121.

In order to ensure the stability of the engagement between the elastic claws 121 and the limiting portion 21 and avoid accidental loosening, in an embodiment, the number of the elastic claws 121 is multiple, for example, 2 to 4, and each elastic claw 121 is distributed around the driving member 111 and abuts against the outer wall of the driving member 111. The length of the resilient fingers 121 extending in the axial direction is approximately one fifth to one third of the height of the insole 12. Further, the cylindrical driving member 111 extends in the axial direction by a height equal to the height from the top of the resilient claws 121 to the bottom end of the insole 12.

Referring to fig. 13 to 17, in another embodiment, the limiting portion 21 includes an insertion hole 211 formed at the bottom of the core 20, the inner wall of the insertion hole 211 is provided with a limiting step 212, and the elastic claw 121 extends into the insertion hole 211 and overlaps the limiting step 212 in the locking state. In the unlocked state, the elastic claw 121 is disengaged from the limit step 212. Specifically, the limiting step 212 is a boss formed at the bottom of the middle core 20, the insertion hole 211 penetrates through the boss, and the limiting step 212 is higher than the bottom of the inner bottom 12 in the axial direction, so that the elastic claw 121 can be separated from the limiting part 21 by changing the force applying position of the elastic claw 121.

In the prior art, the middle bundle core has different types and structures, but in normal use, one of the parts can be fixed relatively with the bottom shell and serves as a fixing part, and when the bottom shell is matched with the middle bundle cores with different structures, the limiting part can be arranged on the fixing part, so that the matching with the elastic clamping jaws is realized.

In an embodiment, the middle bundle core 20 sequentially comprises a bead 22, a fork 23, a spiral 24 and a middle bundle 25 from inside to outside, the bead 22 is used for bearing lipstick paste, the fork 23 is used for accommodating and guiding the bead 22 to axially move, the fork 23 and the insole 12 are rotationally limited, a limiting portion 21 is arranged at the bottom of the fork 23, the spiral 24 is used for driving the bead 22 to axially move, the spiral 24 is arranged on the inner wall of the spiral 24 and is used for being matched with the bead 22 to rotate, the spiral 24 is rotationally sleeved on the periphery of the fork 23, and the middle bundle 25 is fixedly sleeved on the periphery of the spiral 24.

In the present embodiment, the fork 23 is fixed as a fixing member relative to the insole 12 in the bottom case in normal use of the core, wherein:

in the axial direction, the limiting part 21 and the elastic claw 121 limit each other;

circumferentially, a positioning rib 231 matched with each other is arranged between the outer wall of the fork 23 and the inner wall of the inner bottom 12, the positioning rib 231 can be arranged on the outer wall of the fork 23 and/or the inner wall of the inner bottom 12, and the insertion and extraction of the middle bundling core are not influenced during replacement because the positioning rib 231 axially extends.

When the packaging tube 100 is used, the outsole 11 rotates relative to the central beam 25, the outsole 11 drives the fork 23 to rotate, the beads 22 are driven to move, the beads 22 are driven by the screw 24 to move axially, and the paste is screwed out.

The utility model provides a well beam core 20 can replace packing tube 100, has at least one of following effect, realizes the relative fixed and separation of insole 12 and outsole 11 through location structure 13, and the driving piece 111 of outsole 11 acts on the elasticity jack catch 121 of insole 12, and elasticity jack catch 121 cooperates with spacing portion 21 and realizes locking and unblock between insole 12 and well beam core 20, has realized the removable replacement of well beam core 20, and location structure 13 adopts the mode of latch 131 and bayonet 132 cooperation. In addition, the separation of the core 20 from the bottom case 10 in the push button 114 type control is achieved by the push button 114, and the compression spring 14 is employed to provide a driving force for the inner bottom 12 to slide with respect to the outer bottom 11.

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. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A push-button replaceable packing tube comprising a bottom shell and a central core mounted in the bottom shell, wherein the bottom shell comprises an outer bottom and an inner bottom nested and slidably engaged with each other, wherein the inner bottom has a first working position and a second working position on a sliding path, and a positioning structure is provided between the inner bottom and the outer bottom for mutually engaging and keeping the inner bottom at the corresponding working positions;

2. The push button replaceable packaging tube of claim 1, wherein the positioning structure comprises:

3. The push button replaceable packaging tube of claim 2, wherein the outsole comprises:

4. The push button replaceable packing tube of claim 3, wherein the outer sleeve defines a button mounting opening, and the middle sleeve defines a button retaining opening; the button includes:

5. A push button replaceable packing tube according to claim 1, wherein said inner bottom is cup-shaped with a through hole in the bottom portion of the cup, said resilient fingers being distributed around said through hole;

6. The push button replaceable package tube of claim 5, wherein the inner bottom and outer bottom are further provided with a compression spring for driving the inner bottom into the second operating position.

7. The push button replaceable packaging tube of claim 6, wherein the resilient fingers include a heel portion and a finger head;

8. A push button replaceable packaging tube as defined in claim 1, wherein said resilient jaws are 2-4, each resilient jaw being distributed around and abutting against an outer wall of said driving member.

9. A push button replaceable packaging tube as defined in claim 1, wherein the retention feature comprises:

10. The push button replaceable packaging tube of claim 1, wherein the core bundle comprises, in order from inside to outside:

beads for carrying a paste;

the middle beam is fixedly sleeved on the periphery of the spiral;

the limiting part is arranged at the bottom of the fork.