PASTE BOTTLE WITH MULTISTAGE EJECTION MECHANISM

Abstract

A paste bottle with a multistage ejection mechanism is provided, the bottle includes an outer bottle, a replaceable inner bottle, and a multistage ejection mechanism. An upper end of the outer bottle is provided with a detachable gland, a lower end of the outer bottle is connected with a rotary seat which can rotate circumferentially. An upper end of the inner bottle body is mounted in alignment with the outer bottle and forms an accommodating area with the outer bottle. The multistage ejection mechanism is arranged in the accommodating area. The multistage ejection mechanism includes a middle stud, an intermediate screw sleeve and an outer screw sleeve. The multistage ejection mechanism can effectively utilize space inside the inner bottle.

Description

TECHNICAL FIELD

The disclosure relates to a paste bottle with a multistage ejection mechanism.

BACKGROUND ART

A paste bottle is a packaging bottle for containing paste substances, such as lipstick, etc., in which a stud structure is generally provided and which can eject paste by relative rotation and is convenient for users to use and store. In existing paste bottles, to ensure that paste inside can be ejected completely, the stud structure occupies half the bottle space, limiting paste storage strictly. The bottle's height, typically 8 to 10 cm for portability, restricts paste storage to 4 to 5 cm, leading to quick depletion. In addition, changing paste in existing bottles is very inconvenient, and disposal after use causes a lot of wastage.

SUMMARY

Given at least one of the shortcomings mentioned, a paste bottle with a multistage ejection mechanism is provided in the disclosure.

To achieve the above object, a paste bottle with a multistage ejection mechanism is provided in the disclosure, which includes an outer bottle, a replaceable inner bottle, and a multistage ejection mechanism.

An upper end and a lower end of the outer bottle are opened, the upper end of the outer bottle is provided with a detachable gland, the lower end of the outer bottle is connected with a rotary seat which can rotate circumferentially, and an inner wall surface of the rotary seat is provided with a plurality of ribs which are evenly distributed circumferentially.

The replaceable inner bottle includes an inner bottle body and a paste seat slidably disposed in the inner bottle body. A rotation-limiting hole is provided on the paste seat, and an upper end of the inner bottle body is mounted in alignment with the outer bottle and forms an accommodating area with the outer bottle.

The multistage ejection mechanism is arranged in the accommodating area, and includes a middle stud, an intermediate screw sleeve and an outer screw sleeve which are screwed in sequence from inside to outside. An upper end of the middle stud is provided with an integral insertion part which is matched and inserted into the rotation-limiting hole, and a plurality of grooves are uniformly machined on an outer circumferential surface of the outer screw sleeve, and the plurality of grooves correspond to the ribs one by one.

The multistage ejection mechanism is configured to eject the paste seat under action of a plurality of screw pairs. The multistage ejection mechanism can effectively utilize space inside the inner bottle body, therefore an amount of paste that can be stored can be maximized. The gland is of a detachable design so as to facilitate overall replacement of the replaceable inner bottle, thus realizing reuse of the paste bottle.

As a further improvement of the scheme, the gland is machined with an L-shaped groove, and the upper end of the outer bottle is provided with a clamping block which can be clamped into the L-shaped groove.

In the technical scheme, detachable connection is realized by action of the clamping block and the L-shaped groove, with convenient disassembly and assembly and stable connection.

As a further improvement, the rotary seat is rotationally connected with the outer bottle through a hook and a chute.

In the technical scheme, the rotary seat is assembled on the outer bottle in a press-fitting manner, which is convenient to assemble.

As a further improvement, the inner bottle body is designed as an ellipse, and the outer bottle has a support bar supported on a short side of the ellipse.

In the technical scheme, rotation of the elliptical inner bottle body can be limited by supporting of the support bar, so that the multistage ejection mechanism functions.

As a further improvement, a width of the groove at a lower part thereof is larger than that at an upper part thereof to form a flare.

In the technical scheme, the flare is formed so as to facilitate position alignment of the rotary seat with the outer screw sleeve in assembly.

As a further improvement, the upper end of the outer bottle is further machined with external threads, and an upper cover is screwed on the external threads through internal threads to enclose the upper end of the outer bottle.

In the technical scheme, the upper cover is directly fixed with the outer bottle by threads, with simple appearance, compact internal space and no ease of falling off.

Compared to existing methods, the disclosure has following beneficial effects. Existing paste bottles suffer from limited storage and non-reusability. In this scheme, the multistage ejection mechanism ejects the paste seat by utilizing the plurality of screw pairs (the two members are in direct contact with each other and can generate coupling in helical movement), and the multistage ejection mechanism can be adopted to effectively utilize the space inside the inner bottle body, thus maximizing the amount of paste that can be stored. The detachable gland enables comprehensive replacement of the inner bottle, realizing reuse of the paste bottle, and the replaceable inner bottle can be easily inserted into the middle stud, which is convenient to replace. The replaceable inner bottle is made of degradable and renewable paper materials and remaining parts can be 100% produced in PCR, conforming to concept of environmental protection, and the replaceable inner bottle has a separate cover, which effectively protects the internal paste when sold separately.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a paste bottle with a multistage ejection mechanism according to a first embodiment of the present disclosure;

FIG. 2 is an exploded view of a paste bottle with a multistage ejection mechanism according to a first embodiment of the present disclosure;

FIG. 3 is a half cross section of FIG. 2;

FIG. 4 is a schematic diagram of a paste seat according to Embodiment 1;

FIG. 5 is a schematic diagram of a multistage ejection mechanism according to Embodiment 1;

FIG. 6 is a schematic diagram of a replaceable inner bottle equipped with a separate cover according to Embodiment 1;

FIG. 7 is a bottom view of a paste bottle according to Embodiment 2;

FIG. 8 is a cross-sectional view taken along a line A-A in FIG. 7;

FIG. 9 is a schematic diagram of an upper cover according to Embodiment 2;

FIG. 10 is a schematic diagram of an outer bottle according to Embodiment 2;

FIG. 11 is a schematic diagram of a paste seat according to Embodiment 2;

FIG. 12 is a schematic diagram of matching of a paste with a push plate according to Embodiment 2;

FIG. 13 is a schematic diagram of a replaceable inner bottle with a separate cover removed according to Embodiment 2;

FIG. 14 is a schematic diagrams of a rotary seat according to Embodiment 2;

FIG. 15 is another schematic diagram of the rotary seat according to Embodiment 2;

FIG. 16 is a schematic diagram of an intermediate screw sleeve according to Embodiment 2;

FIG. 17 is a schematic diagram of an outer screw sleeve according to Embodiment 2;

FIG. 18 is a schematic diagram of a middle stud according to Embodiment 2;

FIG. 19 is a schematic diagram of a gland according to Embodiment 2;

FIG. 20 is a schematic diagram of a paste bottle according to Embodiment 3;

FIG. 21 is a schematic diagram of a gland according to Embodiment 3; and

FIG. 22 is a schematic diagram of an outer bottle according to Embodiment 3.

DETAILED DESCRIPTION

Embodiment 1

As shown in FIGS. 1 to 6, a paste bottle with a multistage ejection mechanism according to an embodiment of the present disclosure is provided, which includes an outer bottle 3. Upper and lower ends of the outer bottle 3 are opened. The upper end of the outer bottle 3 is provided with a detachable gland 2, which is configured for limiting of the replaceable inner bottle, and the gland has an inwardly extending flange 22 to cover the replaceable inner bottle (in other embodiments, no gland is provided and the flange may be directly extended inward from the outer bottle for limiting). The lower end of the outer bottle 3 is connected with a rotary seat 6 which can rotate circumferentially, and an inner wall of the rotary seat 6 is provided with a plurality of ribs 61 which are evenly distributed circumferentially. The replaceable inner bottle 4 includes an inner bottle body 41 and a paste seat 42 slidably disposed in the inner bottle body 41. The paste seat 42 is provided with a rotation-limiting hole 421, and the upper end of the inner bottle body 41 is aligning with the outer bottle 3 and forms an accommodation area with the outer bottle 3. The multistage ejection mechanism 5 is arranged in the accommodating area, and includes a middle stud 51, an intermediate screw sleeve 52 and an outer screw sleeve 53 which are screwed in sequence from inside to outside. An upper end of the middle stud 51 has an integral insertion part 511 (which may not be integrally disposed in other embodiments), and the insertion part 511 matches and inserts into the rotation-limiting hole 421. A plurality of grooves 531 are uniformly machined on an outer circumferential surface of the outer screw sleeve 53, and the plurality of grooves 531 correspond to the ribs 61 one by one. The gland 2 is machined with an L-shaped groove 21, and the upper end of the outer bottle 3 is provided with a clamping block 31 which can be clamped into the L-shaped groove 21, so that detachable connection can realized by action of the clamping block and the L-shaped groove, with convenient disassembly and assembly, and stable connection. The rotary seat 6 is rotationally connected with the outer bottle 3 by matching of a hook with a chute or matching of a protrusion with the chute. The rotary seat is assembled on the outer bottle in a press-fitting manner, which is convenient to assemble. The inner bottle body 41 is designed as an ellipse, and an inner wall of the outer bottle 3 has a support bar 32 supported on a short side of the ellipse. Rotation of the elliptical inner bottle body can be limited by supporting of the support bar, therefore the multistage ejection mechanism functions. The paste seat 42's shape is adapted to fit within the inner bottle.

In this application, as long as the paste seat (42) is provided with a rotation-limiting hole, a shape of the paste seat (42) or a shape of the rotation-limiting hole in this application are not limited, and in other embodiments, the rotation-limiting hole can also be round.

Optionally, a width of the groove 531 at a lower part thereof is larger than that at an upper part forming a flare, and the flare is formed so as to facilitate position alignment of the rotary seat with the outer screw sleeve in assembly.

Optionally, the upper end of the outer bottle 3 is further machined with external threads 33, and an upper cover 1 is screwed on the external threads through internal threads 11 to enclose the upper end of the outer bottle 3, and the upper cover is directly fixed with the outer bottle by threads, with simple appearance, compact internal space and no ease of falling off.

Optionally, there are two intermediate screw sleeves connected by threads in this embodiment

Optionally, to leave room for the intermediate screw sleeve 52, the paste seat can be provided with a groove 422, and a position of the groove 422 corresponds to a position of the intermediate screw sleeve 52.

Optionally, in this embodiment, an outer diameter of the upper end of the outer bottle 3 is smaller than an outer diameter of the lower end of the outer bottle 3, so that the whole paste bottle exhibits a cylindrical shape. An inner diameter of the upper end of the outer bottle 3 is smaller than an outer diameter of the inner end of the outer bottle 3, which facilitates clamping of the inner bottle, which is not limited in this disclosure.

Optionally, upper and lower ends of the replaceable inner bottle 4 can be allocated and sold separately with a separate cover 7. The separate cover 7 can be removed if needed.

The multistage ejection mechanism according to this disclosure ejects the paste seat using screw pairs, optimizing inner bottle space for maximum paste storage. The detachable gland facilitates overall replacement of the replaceable inner bottle, realizing reuse of the paste bottle, and the replaceable inner bottle can be easily inserted into the middle stud, which is convenient to replace. The replaceable inner bottle is made of degradable and renewable paper materials and remaining parts can be 100% produced in PCR, conforming to concept of environmental protection, and the replaceable inner bottle has a separate cover, which effectively protects the internal paste when sold separately.

When in use, to facilitate understanding of the disclosure, it will be described with reference to the drawings.

When in use, the upper cover is removed and the rotary seat is rotated to drive the outer screw sleeve to rotate through action of the ribs 61 and the grooves 531, while the insertion part 511 at the upper end of the middle stud is clamped in the rotation-limiting hole 421 at this time, so the elliptical inner bottle body cannot rotate due to action of the support bar 32. Similarly, the paste seat inside the inner bottle body does not rotate, that is, the intermediate screw sleeve is rotated to push the paste seat up, and the middle stud continues to move up to continually eject the paste seat after a stroke of the intermediate screw sleeve is finished.

When replacing the replaceable inner bottle, the gland 2 is removed, and after the replaceable inner bottle is ejected completely, an external force is applied to make the insertion part 511 separate from the rotation-limiting hole 421, a new replaceable inner bottle can be replaced, and then the rotary seat is rotated reversely to make the paste seat return to a low position.

Embodiment 2

As shown in FIG. 7 to FIG. 17, the paste bottle's shape and structure in Embodiment 2 of the multistage ejection mechanism are substantially the same as those in Embodiment 1, with differences explained below.

Optionally, an inner surface of an end of the upper cover close to the outer bottle is circumferentially provided with a groove 12. Correspondingly, the upper end of the outer bottle 3 is provided with a slide rail 34, and the groove can move circumferentially along the slide rail 34, and the end of the upper cover provided with the groove is buckled on the slide rail for convenient positioning and buckling.

Optionally, a part where the upper end of the outer bottle 3 is opened is with a downward depression 35 which facilitates disposing and removing of the inner bottle, and there may be one or one depressions. In this embodiment, there are two depressions which are symmetrically arranged.

As shown in FIG. 11, the paste seat according to this disclosure can be provided with no groove 422, and the rotation-limiting hole 421 in this embodiment can be shaped like an ellipse. When the insertion part 511 is rotated to a specific angle of the rotation-limiting hole 421 (for example, a short side of the ellipse), it can be clamped and fixed. When the insertion part 511 is rotated to a specific angle of the rotation-limiting hole 421 (for example, a long side of the ellipse), the insertion part 511 and the rotation-limiting hole 421 can be separated from each other. The paste bottle also has a push plate 423 which is slidably connected to an inner wall of the inner bottle body, paste 43 is supported on the push plate 423, and the push plate 423 pushes the paste 43 to move up and down. A bottom of the push plate 423 also has a second limiting hole 411 matched with the insertion part 511, and the insertion part 511 is inserted into the limiting hole 421 and then clamped in the second limiting hole 411. Optionally, the insertion part 511 is provided with a chamfer, therefore it can be conveniently buckled into the second limiting hole 411 so as to be clamped. Optionally, the second limiting holes 411 can be set as two symmetrical arc holes, and the insertion part 511's shape matches the second limiting hole 411.

Both the paste seat and the push plate can be made of paper-plastic materials.

In this embodiment, each of the groove 531's width at the lower part equals to a width of the flare at the upper part, and the grooves 531 are axially distributed.

An inner wall of a lower part of the outer bottle is buckled with an outer wall of the rotary seat, and an inner wall of the lower part of the outer bottle is circumferentially provided with a plurality of hooks 36 for buckling with an annular chute 611 at the outer wall of the rotary seat. The inner wall of the lower part of the outer bottle and the outer wall of the rotary seat are respectively circumferentially provided with a ring-shaped chute 37 and a ring-shaped protrusion 412 matched with each other, for further fixing.

To prevent separation of the middle stud 51, the intermediate screw sleeve 52 and the outer screw sleeve 53 in the multistage ejection mechanism, the tops of inner walls of the middle stud 51, the intermediate screw sleeve 52 and the outer screw sleeve 53 in this embodiment can all be provided with a section of stop rings (512, 521, 532) without threads. And in other embodiments, any one or more of the middle stud 51, the intermediate screw sleeve 52 and the outer screw sleeve 53 can be provided with a stop ring. Optionally, the inner walls of the intermediate screw sleeve 52 and the outer screw sleeve 53 are provided with threads only at positions proximate to their tops.

In this embodiment, two intermediate screw sleeves 52, the middle stud 51 is screwed with one of the intermediate screw sleeves, the two intermediate screws screw with each other, and the other of the two intermediate screw sleeves screw with the outer screw sleeve. In other embodiments, the intermediate screw sleeves 52 can be of any number of one, three, etc.

Optionally, an annular gasket 8 is provided at a bottom of the outer screw sleeve 53, and the gasket in this embodiment is provided corresponding to the middle stud 51 and a first intermediate screw sleeve 52 screwed with the middle stud.

Optionally, to increase fixing effect of the clamping block 31 and the L-shaped groove 21, a blocking bar 121 is provided at a corner of the L-shaped groove 21, and a height of the blocking bar is lower than a groove depth of the L-shaped groove 21, ensuring the blocking bar is lower than an inner wall of the gland 2.

Embodiment 3

As shown in FIGS. 20 to 22, to facilitate buckling or separation of the replaceable inner bottle body and the insertion part 511, a paste bottle which is detachable at the bottom is provided in this embodiment.

As shown in FIG. 20, the paste bottle can be provided with no gland, and a snap ring 9 is provided between the outer bottle 3′ and the rotary seat 6. The snap ring can be provided to be detachably connected with the outer bottle, or with the rotary seat, or with both the outer bottle and the rotary seat. In this embodiment, the snap ring is provided with an L-shaped groove 92, and a lower end of the outer bottle is provided with a clamping block 31′ which can be clamped into the L-shaped groove. A blocking bar with a height lower than a depth of the groove can also be provided in the L-shaped groove, enabling detachable connection between the snap ring and the outer bottle through rotation.

As shown in FIG. 21, the other end of the L-shaped groove 92 in the snap ring and the rotating base 6 are paired with an annular protrusion or an annular chute 93, mutually clamped and fixed. The snap ring can also be integrated with the rotating base. As shown in FIG. 22, after removing the gland, the outer bottle 3′ extends inward and radially to form a flange 38 for limiting.

When the paste is used up, because the multistage ejection mechanism serves to eject step by step during use, it is necessary to rotate and reset the rotary seat first, then rotate a buckle and the outer bottle to separate them, and then an old bottle is disassembled and a new one can be installed. As the multistage ejection mechanism is in a reset state when the replaced bottle is disassembled or installed, an overall height is lowest compared with an ejected state, making it convenient to disassemble or install.

In other embodiments, it is also possible to provide both a gland and a pressing ring, allowing disassembling at both the top and the bottom, which is convenient for consumers to choose an appropriate operation habit according to their needs.

The above is only specific embodiments of the present disclosure, and is not intended to limit this disclosure, and modifications and variations can be made in this disclosure for those skilled in the art. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of this disclosure shall be encompassed within the protection scope of this disclosure.

Claims

1. A paste bottle with a multistage ejection mechanism, comprising: an outer bottle (3), an upper end and a lower end of the outer bottle (3) are opened, the upper end of the outer bottle (3) being provided with a detachable gland (2), the lower end of the outer bottle (3) being connected with a rotary seat (6) which can rotate circumferentially, and an inner wall surface of the rotary seat (6) being provided with a plurality of ribs (61) which are distributed circumferentially;a replaceable inner bottle (4) comprising an inner bottle body (41) and a paste seat (42) slidably disposed in the inner bottle body (41), a rotation-limiting hole (421) being provided at the paste seat (42), and an upper end of the inner bottle body (41) being mounted in alignment with the outer bottle (3) and forming an accommodating area with the outer bottle (3); anda multistage ejection mechanism (5) arranged in the accommodating area and comprising a middle stud (51), an intermediate screw sleeve (52) and an outer screw sleeve (53) which are screwed from inside to outside in sequence, an upper end of the middle stud (51) being provided with an integral insertion part (511) which is matched and inserted into the rotation-limiting hole (421), and an outer screw sleeve (53) features uniformly machined grooves (531) on outer circumferential surface, corresponding one by one to ribs (61).

2. The paste bottle with the multistage ejection mechanism according to claim 1, wherein the gland (2) is machined with an L-shaped groove (21), and the upper end of the outer bottle (3) has a clamping block (31) which can be clamped into the L-shaped groove (21).

3. The paste bottle with the multistage ejection mechanism according to claim 1, wherein the rotary seat (6) is rotationally connected with the outer bottle (3) through a hook and a chute.

4. The paste bottle with the multistage ejection mechanism according to claim 1, wherein the inner bottle body (41) is designed as an elliptical cylinder, and the outer bottle (3) has a support bar (32) supported on a short side of the elliptical cylinder.

5. The paste bottle with the multistage ejection mechanism according to claim 1, wherein a width of the groove (531) at a lower part thereof is larger than that at an upper part forming a flare.

6. The paste bottle with the multistage ejection mechanism according to claim 1, wherein the upper end of the outer bottle (3) is further provided with external threads, and an upper cover (1) is screwed on the external threads through internal threads to enclose the upper end of the outer bottle (3).

7. The paste bottle with the multistage ejection mechanism according to claim 1, wherein any one or more of the middle stud (51), the intermediate screw sleeve (52) and the outer screw sleeve (53) can be provided with a stop ring at a top thereof, the stop ring being not provided with threads.

8. The paste bottle with the multistage ejection mechanism according to claim 1, wherein a part where the upper end of the outer bottle is opened is with a downward depression which facilitates disposing and removing of the inner bottle.

9. The paste bottle with the multistage ejection mechanism according to claim 1, wherein there are a plurality of intermediate screw sleeves (52), the plurality of intermediate screw sleeves being screwed with each other.

10. The paste bottle with the multistage ejection mechanism according to claim 9, wherein an annular gasket is provided at a bottom of the outer screw sleeve, the gasket being provided corresponding to the middle stud and an intermediate screw sleeve screwed with the middle stud.

11. The paste bottle with the multistage ejection mechanism according to claim 2, wherein a blocking bar is provided at a corner of the L-shaped groove, and a height is lower than a groove depth of the L-shaped groove.

12. The paste bottle with the multistage ejection mechanism according to claim 1, wherein a snap ring is provided between the outer bottle and the rotary seat, and the snap ring is detachably connected with the outer bottle, or with the rotary seat, or with both.

13. The paste bottle with the multistage ejection mechanism according to claim 12, wherein the snap ring is provided with an L-shaped groove, and a lower end of the outer bottle is provided with a clamping block which can be clamped into the L-shaped groove.

14. A paste bottle with a multistage ejection mechanism, comprising an outer bottle (3), an upper and a lower end of which are opened, the upper end of the outer bottle (3) extending inward and radially to form a flange (38), the lower end of the outer bottle (3) being connected with a rotary seat (6) which can rotate circumferentially, and an inner wall surface of the rotary seat (6) being provided with a plurality of ribs (61) which are distributed circumferentially;a replaceable inner bottle (4) comprising an inner bottle body (41) and a paste seat (42) slidably disposed in the inner bottle body (41), a rotation-limiting hole (421) being provided on the paste seat (42), and an upper end of the inner bottle body (41) being limited by the flange and forming an accommodating area with the outer bottle (3); anda multistage ejection mechanism (5) arranged in the accommodating area and comprising a middle stud (51), an intermediate screw sleeve (52) and an outer screw sleeve (53) which are screwed from inside to outside in sequence, an upper end of the middle stud (51) being provided with an integral insertion part (511) that matches and inserts into the rotation-limiting hole (421), and a plurality of grooves (531) being uniformly machined on an outer circumferential surface of the outer screw sleeve (53), and the plurality of grooves (531) corresponding to the ribs (61) one by one.