阅读说明：本技术 化妆品包装瓶 (Cosmetic product packaging bottle ) 是由 万洁 李永强 李爱民 李颖 邢岩 于 2021-02-23 设计创作，主要内容包括：一种化妆品包装瓶,涉及化妆品包装技术领域,所述化妆品包装瓶包括外壳和内芯；外壳包括外筒和连接环,外筒具有第一开口和相对的第二开口,连接环套设于外筒的外侧,外筒的侧壁设置有导向孔,导向孔具有解锁区和锁止区,连接环的内壁设置有滑槽,连接环能够相对于外筒转动,以使得滑槽与解锁区或锁止区相对；内芯包括泵头和瓶身,瓶身的内腔用于填充化妆品,泵头连接于瓶身的一端,泵头能够与第一开口连通,瓶身的外侧设置有定位柱,定位柱能够穿过导向孔并伸入滑槽,连接环转动能够带动定位柱在锁止区与解锁区之间移动。所述化妆品包装瓶的外壳与内芯可拆卸连接,使用方便,外壳可多次使用,节约成本,降低化妆品包装瓶的回收难度,减少浪费。(A cosmetic packaging bottle relates to the technical field of cosmetic packaging, and comprises an outer shell and an inner core; the shell comprises an outer barrel and a connecting ring, the outer barrel is provided with a first opening and a second opening opposite to the first opening, the connecting ring is sleeved on the outer side of the outer barrel, the side wall of the outer barrel is provided with a guide hole, the guide hole is provided with an unlocking area and a locking area, the inner wall of the connecting ring is provided with a sliding groove, and the connecting ring can rotate relative to the outer barrel so that the sliding groove is opposite to the unlocking area or the locking area; the inner core includes pump head and body, and the inner chamber of body is used for filling cosmetics, and the pump head is connected in the one end of body, and the pump head can communicate with first opening, and the outside of body is provided with the reference column, and the reference column can pass the guiding hole and stretch into the spout, and the go-between rotates and can drive the reference column and move between locking district and unblock district. The shell and the inner core of the cosmetic packaging bottle are detachably connected, the use is convenient, the shell can be used repeatedly, the cost is saved, the recycling difficulty of the cosmetic packaging bottle is reduced, and the waste is reduced.)

1. A cosmetic product packaging bottle is characterized by comprising an outer shell and an inner core, wherein the outer shell is detachably connected with the inner core;

the shell comprises an outer barrel and a connecting ring, a first opening is formed in a first end of the outer barrel, a second opening is formed in an opposite second end of the outer barrel, the connecting ring is sleeved on the outer side of the outer barrel, a guide hole is formed in the side wall of the outer barrel, the guide hole is provided with an unlocking area and a locking area, a sliding groove is formed in the inner wall of the connecting ring, and the connecting ring can rotate relative to the outer barrel so that the sliding groove is opposite to the unlocking area or the locking area;

the inner core includes pump head and body, the inner chamber of body is used for filling cosmetics, the pump head connect in the one end of body, the pump head can with first opening intercommunication, the outside of body is provided with the reference column, the reference column can pass the guiding hole stretches into the spout, the go-between rotates and to drive the reference column is in the locking district with remove between the unblock district.

2. The cosmetic packaging bottle of claim 1 wherein the outer side of the outer barrel is provided with a first stop block and the inner side of the connecting ring is provided with a second stop block, the engagement of the first stop block and the second stop block enabling the connecting ring to rotate between a first position and a second position; when the connecting ring is located at the first position, the sliding groove is opposite to the first section; when the connecting ring is located at the second position, the sliding groove is opposite to the locking area.

3. The cosmetic packaging bottle of claim 1 wherein the unlocking zone comprises a first section and a second section, both ends of the second section are respectively communicated with the locking zone and the first section, and the extension direction of the first section, the extension direction of the locking zone and the extension direction of the sliding groove are all parallel to the axial direction of the outer barrel.

4. The cosmetic packaging bottle of claim 3 wherein the second segment is an arcuate segment.

5. The cosmetic packaging bottle of claim 1 wherein a length of the locking region in an axial direction of the outer barrel is greater than a length of the positioning post in the axial direction of the outer barrel such that the positioning post is movable in the axial direction of the outer barrel within a set range at the locking region.

6. The cosmetic packaging bottle of claim 1 wherein the guide aperture is disposed at the second end of the outer barrel and the connecting ring is disposed at the second end of the outer barrel.

7. The cosmetic packaging bottle of claim 1 wherein the inner core further comprises a bottom cap connected to the other end of the body distal from the pump head, the bottom cap having an outer diameter greater than the outer diameter of the outer barrel and less than the inner diameter of the connecting ring.

8. The cosmetic packaging bottle of claim 1 wherein the number of the guide holes, the sliding grooves and the positioning posts are two, and the two positioning posts are symmetrically arranged on the outer side of the inner core relative to the axis of the inner core.

9. The cosmetic packaging bottle of claim 1, wherein an elastic return member is sleeved on one end of the bottle body, and two ends of the elastic return member are respectively abutted against the pump head and the bottle body.

10. The cosmetic packaging bottle of claim 1 further comprising a cap for fitting over an end of the body.

Technical Field

The invention relates to the technical field of cosmetic packaging, in particular to a cosmetic packaging bottle.

Background

Cosmetics with certain fluidity such as emulsion, essence and the like are usually arranged in a packaging bottle, and a pressing pump head is arranged on the packaging bottle so as to press the cosmetics in the packaging bottle out conveniently for use.

At present, cosmetic packaging bottles are generally formed in one step by plastic pouring, the whole packaging bottle is discarded after cosmetics in the packaging bottle are used up, and the packaging bottle is difficult to recycle, so that pollution and waste are caused.

Disclosure of Invention

The present invention aims to provide a cosmetic product packaging bottle which is capable of solving the above technical problems to some extent.

The invention is realized by the following steps:

a cosmetic packaging bottle comprising an outer shell and an inner core, the outer shell being removably connected to the inner core;

the shell comprises an outer barrel and a connecting ring, a first opening is formed in a first end of the outer barrel, a second opening is formed in an opposite second end of the outer barrel, the connecting ring is sleeved on the outer side of the outer barrel, a guide hole is formed in the side wall of the outer barrel, the guide hole is provided with an unlocking area and a locking area, a sliding groove is formed in the inner wall of the connecting ring, and the connecting ring can rotate relative to the outer barrel so that the sliding groove is opposite to the unlocking area or the locking area;

the inner core includes pump head and body, the inner chamber of body is used for filling cosmetics, the pump head connect in the one end of body, the pump head can with first opening intercommunication, the outside of body is provided with the reference column, the reference column can pass the guiding hole stretches into the spout, the go-between rotates and can drives the reference column removes between locking district and unblock district.

In a possible implementation scheme, a first limit block is arranged on the outer side of the outer barrel, a second limit block is arranged on the inner side of the connecting ring, the first limit block and the second limit block are matched to enable the connecting ring to rotate between a first position and a second position, when the connecting ring is located at the first position, the sliding groove is opposite to the first section, and when the connecting ring is located at the second position, the sliding groove is opposite to the locking area.

In a possible embodiment, the unlocking zone includes a first section and a second section, two ends of the second section are respectively communicated with the locking zone and the first section, and an extending direction of the first section, an extending direction of the locking zone and an extending direction of the sliding groove are parallel to an axial direction of the outer cylinder.

In one possible embodiment, the second segment is an arcuate segment.

In a possible embodiment, the length of the locking area in the axial direction of the outer cylinder is greater than the length of the positioning column in the axial direction of the outer cylinder, so that the positioning column can move in the axial direction of the outer cylinder within a set range in the locking area.

In a possible embodiment, the guiding hole is disposed at the second end of the outer cylinder, and the connecting ring is sleeved at the second end of the outer cylinder.

In a possible embodiment, the inner core further comprises a bottom cover, the bottom cover is connected to the other end of the bottle body away from the pump head, and the outer diameter of the bottom cover is larger than the outer diameter of the outer barrel and smaller than the inner diameter of the connecting ring.

In a possible embodiment, the number of the guide holes, the sliding grooves and the positioning columns is two, and the two positioning columns are symmetrically arranged on the outer side of the inner core relative to the axis of the inner core.

In a feasible implementation scheme, an end cover of body is equipped with the elasticity piece that resets, the elasticity reset the both ends of piece respectively with the pump head with the body butt.

In one possible embodiment, the cosmetic packaging bottle further comprises a cap for covering one end of the body.

The beneficial effects of the invention at least comprise:

the application provides a cosmetics packaging bottle can regard as emulsion, the condensation, the packing bottle of cosmetics such as quintessence is used, cosmetics holding is in the body of inner core, the inner core can be dismantled with the shell and be connected, specifically, at the in-process of being connected the inner core with the shell, rotate the go-between, make spout and unblock district correspond, insert the inner core in the urceolus, make the pump head to being close to first opening direction and remove final and first opening intercommunication, make press the pump head can be discharged the cosmetics in the body by first opening, and make the locating column pass the unblock district of guiding hole and stretch into the spout, after the go-between rotates again, the spout rotates for the guiding hole, thereby drive the locating column and remove the locking district by the unblock district, in order to present the locking district with the locating column, thereby make the position of inner core and urceolus injectd in certain extent, be about. After the cosmetics in the inner bottle are used up, the connecting ring is rotated reversely, so that the positioning column is driven to move from the locking area to the unlocking area, the inner core is pulled out of the outer cylinder, and a new inner core can be installed in the outer cylinder.

To sum up, in the cosmetics packaging bottle that this application provided, the shell can be dismantled with the inner core and be connected, and the shell can repetitious usage, practices thrift the cost, reduces the recovery degree of difficulty of cosmetics packaging bottle, reduces extravagantly.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a first schematic structural diagram of a cosmetic packaging bottle according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a cosmetic packaging bottle according to an embodiment of the present invention;

FIG. 3 is an exploded view of a cosmetic packaging bottle according to an embodiment of the present invention;

fig. 4 is an exploded view of a cosmetic packaging bottle according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 4 at A;

FIG. 6 is a first schematic structural view of an outer cylinder in the cosmetic packaging bottle according to the embodiment of the present invention;

FIG. 7 is a second schematic structural view of an outer barrel of the cosmetic packaging bottle according to the embodiment of the present invention;

fig. 8 is a third schematic structural view of an outer cylinder in a cosmetic packaging bottle according to an embodiment of the present invention;

FIG. 9 is a first schematic structural diagram of a connecting ring in a cosmetic packaging bottle according to an embodiment of the present invention;

FIG. 10 is a second schematic structural view of a connecting ring in a cosmetic packaging bottle according to an embodiment of the present invention;

fig. 11 is a third schematic structural view of a connecting ring in a cosmetic packaging bottle according to an embodiment of the present invention;

fig. 12 is a cross-sectional view of a cosmetic packaging bottle provided by an embodiment of the present invention.

In the figure:

1-outer cylinder; 2-connecting rings; 3-a top cover; 4-pump head; 5-bottle body; 6-air exhaust hole; 7-bottom cover; 8-a first opening; 9-an elastic reset piece; 10-a pilot hole; 11-first stage; 12-a second segment; 13-a locking zone; 14-a chute; 15-a first groove portion; 16-a second trough portion; 17-sealing the outer ring; 18-sealing projection; 19-a discharge line; 20-a positioning column; 21-a first stopper; 22-a first rib; 23-second bead.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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 invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the equipment or elements that are referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 12, the present embodiment provides a cosmetic packaging bottle, which includes an outer shell and an inner core, wherein the outer shell is detachably connected to the inner core.

Specifically, the shell comprises an outer cylinder 1 and a connecting ring 2, wherein the connecting ring 2 is sleeved outside the outer cylinder 1 and is rotatably connected with the outer cylinder 1.

The inner core includes pump head 4 and body 5, and the inner chamber of body 5 is used for filling cosmetics, and pump head 4 is installed in the one end of body 5, and the one end that body 5 was installed pump head 4 stretches into 1 inboardly of urceolus, and body 5 is at least regional stretches into 1 inboardly of urceolus, and of course, also can all regional all of body 5 stretch into 1 inboardly of urceolus.

The first end of urceolus 1 is provided with first opening 8, relative second end is provided with the second opening, first opening 8 is used for supplying cosmetics to pass through, the second opening is used for supplying pump head 4 and body 5 to pass through, pump head 4 and body 5 insert urceolus 1 inboard from the second opening, insert the back in place with body 5 and pump head 4, pump head 4 and first opening 8 intercommunication, pump head 4 receives the extrusion and can makes the cosmetics in the body 5 discharge via first opening 8, in order to supply the user to take.

The lateral wall of urceolus 1 is provided with guiding hole 10, and guiding hole 10 has unblock district and locking district 13, and the inner wall of go-between 2 is provided with spout 14, and when go-between 2 rotated for urceolus 1, the position of spout 14 changed, and go-between 2 rotates and to be able to make spout 14 switch to opposite with locking district 13 with the unblock district relatively, or switch to opposite with the unblock district from opposite with locking district 13.

Preferably, a vent hole 6 is provided in the side wall of the outer cylinder 1, the vent hole 6 being located at or near the first end of the outer cylinder 1, and air in the outer cylinder 1 is discharged through the vent hole 6 during the insertion of the inner core into the outer cylinder 1.

Further, preferably, the outer tube 1 can be made of transparent material, such as transparent plastic or glass, and the transparent outer tube 1 enables a user to see the outer side of the inner core through the side wall of the outer tube 1. So set up, can print the lateral surface at the inner core with product information, urceolus 1 can play the guard action to the information of the lateral surface printing of inner core, avoids it to be worn and torn.

In one possible embodiment, the cosmetic packaging bottle further comprises a cap 3, the cap 3 being adapted to fit over an end of the body 5. In particular, the top cover 3 can cover the first opening 8 to avoid the cosmetics at the first opening 8 from drying out.

Preferably, as shown in fig. 12, a sealing outer ring 17 and a sealing protrusion 18 are arranged on the inner side of the top cover 3, the sealing outer ring 17 is arranged around the peripheral region of the sealing protrusion 18, a sealing groove is formed between the sealing outer ring 17 and the sealing protrusion 18, a discharge pipeline 19 is arranged at the first end of the outer cylinder 1, and the outer diameter of the discharge pipeline 19 is smaller than the outer diameter of the main body of the outer cylinder 1. The discharge pipeline 19 extends along the axial direction of the outer cylinder 1, the first opening 8 is an end opening of the discharge pipeline 19, and the pump head 4 is communicated with the first opening 8 through the discharge pipeline 19. After closing the first end of urceolus 1 with top cap 3 lid, discharge pipe 19's tip stretches into in the seal groove, and sealed arch 18 stretches into in first opening 8 to it is sealed with first opening 8, sealed outer loop 17 cladding in discharge pipe 19's terminal surface peripheral region, sealed outer loop 17 can also play the radial limiting displacement to discharge pipe 19 with sealed protruding 18 cooperation. Further, the sealing protrusion 18 has a diameter-variable structure along the axial direction of the outer cylinder 1, and in a state where the sealing protrusion is fastened to the outer cylinder 1, the outer diameter of the sealing protrusion gradually decreases from one end away from the outer cylinder 1 to the other end, the minimum outer diameter of the sealing protrusion is smaller than the diameter of the first opening 8, and the maximum outer diameter of the sealing protrusion is larger than the diameter of the first opening 8. The small end head is beneficial to the sealing bulge 18 to extend into the first opening 8, and the reducing structure is beneficial to the sealing bulge 18 to play a good sealing role in the first opening 8.

Pump head 4 is connected in the one end of body 5, and pump head 4 can communicate with first opening 8, and the outside of body 5 is provided with reference column 20, and reference column 20 can pass guiding hole 10 and stretch into spout 14, and go-between 2 rotates the in-process and drives reference column 20 through the inner wall of spout 14 and move between locking district 13 and unblock district. When the sliding groove 14 is opposite to the unlocking area, the positioning column 20 can extend into the sliding groove 14 and the unlocking area, and when the sliding groove 14 is opposite to the locking area 13, the positioning column 20 is limited in the locking area 13.

As shown in fig. 5, in a possible embodiment, the unlocking zone comprises a first section 11 and a second section 12, two ends of the second section 12 are respectively communicated with the locking zone 13 and the first section 11, and the extending direction of the first section 11, the extending direction of the locking zone 13 and the extending direction of the sliding groove 14 are parallel to the axial direction of the outer cylinder 1. The second section 12 is a transition section, so that the positioning column 20 can be switched between the unlocking zone and the locking zone 13 after the connecting ring 2 is screwed for a certain angle, thereby avoiding the phenomenon of mistaken touch.

In one possible embodiment, the second segment 12 is an arcuate segment. Of course, in other possible embodiments, the second end may also be an inclined section.

As shown in fig. 6-11, in a possible embodiment, a first stopper 21 is disposed on the outer side of the outer cylinder 1, a second stopper is disposed on the inner side of the connection ring 2, and the first stopper 21 and the second stopper cooperate to enable the connection ring 2 to rotate between a first position and a second position, wherein when the connection ring 2 is located at the first position, the sliding groove 14 is opposite to the first section 11, and when the connection ring 2 is located at the second position, the sliding groove 14 is opposite to the locking area 13.

As shown in fig. 9-11, the sliding groove 14 may be formed by two ribs protruding from the inner wall of the connecting ring 2, the two ribs are spaced apart from each other, and the sliding groove 14 is formed between the two ribs. One of the ribs can be used as a second limiting block. In fig. 10 and 11, the first rib 22 is used as the second stopper.

For the sake of convenience, the two ribs forming one runner 14 are referred to as a first rib 22 and a second rib 23, respectively, and the runner 14 has three sides, two side surfaces and a bottom surface, respectively, the two side surfaces being formed by one surface of the first rib 22 and one surface of the second rib 23, respectively, and the bottom surface being located between the two side surfaces.

Further, as shown in fig. 10 and 11, the sliding groove 14 includes a first groove portion 15 and a second groove portion 16, the first groove portion 15 communicates with the second groove portion 16, the depth of the first groove portion 15 is greater than that of the second groove portion 16, and a transition surface between a bottom surface of the first groove portion 15 and a bottom surface of the second groove portion 16 is an inclined surface so as to facilitate the positioning column 20 to move between the two groove portions. When the connection ring 2 is mounted to the second end of the outer cylinder 1, the first groove portion 15 can be opposed to the positioning hole during rotation, and the second groove portion 16 cannot be opposed to the positioning hole. In the process of inserting the inner core into the outer shell, the positioning column 20 firstly enters the second slot portion 16, and enters the first slot portion 15 after moving for a certain distance along the second slot portion 16, and because the first slot portion 15 is opposite to the positioning hole, the positioning column 20 enters the positioning hole while entering the first slot portion 15. Because the transition section between the first slot portion 15 and the second slot portion 16 is an inclined plane, it is easier to make the positioning column 20 enter the first slot portion 15, and after the positioning column 20 enters the first slot portion 15, the inclined plane plays a certain limiting role for the positioning column 20, and can prevent the positioning column 20 from entering the second slot portion 16 from the first slot portion 15 under the non-external force action to a certain extent.

To facilitate squeezing of pump head 4 to enable pump head 4 to pump cosmetic to first opening 8, in one possible embodiment, the first end of outer barrel 1 may be provided as a depressible structure, depressing the first end of outer barrel 1 to squeeze pump head 4 on the side of the first end to enable pump head 4 to pump cosmetic out of first opening 8.

Alternatively, in another possible embodiment, the outer cartridge 1 is of unitary construction, and squeezing of the pump head 4 is achieved by pressing the inner core at the second opening, so that the pump head 4 pumps the cosmetic product out to the first opening 8.

In order to facilitate pressing of the inner core, it is preferable that the length of the locking region 13 in the axial direction of the outer cylinder 1 is greater than the length of the positioning column 20 in the axial direction of the outer cylinder 1, so that the positioning column 20 can move in the axial direction of the outer cylinder 1 within a set range in the locking region 13. The limitation of the locking zone 13 to the positioning column 20 enables the positioning column 20 to move only in the axial direction of the outer cylinder 1 within the limited range of the locking zone 13, namely, the inner core and the outer cylinder 1 are limited within a certain range, and enables the inner core to move in the axial direction relative to the outer cylinder 1 within a certain range, namely, the operation of pressing the inner core is achieved in a locking state. When the inner core is pressed, a finger is inserted from the second opening to push the inner core to move axially relative to the outer cylinder 1, and at this time, the positioning column 20 moves within the limited range of the locking area 13.

The lengthwise direction of the locking region 13 is parallel to the axial direction of the outer cylinder 1, and the widthwise direction of the locking region 13 is perpendicular to the lengthwise direction. The maximum distance of the positioning columns 20 along the length direction of the locking area 13 is X, and the maximum distance of the positioning columns 20 along the width direction of the locking area 13 is Y. Preferably, the length of the locking area 13 is greater than X, and the width of the locking area 13 is slightly greater than Y, or the width of the locking area 13 is matched to Y, so that the locking area 13 acts as a limit for the positioning post 20 in the width direction, i.e. the positioning post 20 can only move in the locking area 13 in the length direction of the locking area 13 without wobbling in the width direction.

Positioning post 20 may be a cylinder, prism, or irregular-shaped cylinder.

Preferably, the positioning column 20 is a cylinder, and the side surface contacting with the side wall of the locking area 13 is a curved surface, so that the positioning column 20 can move relative to the locking area 13. When the positioning column 20 is a cylinder, X and Y are the outer diameters of the positioning column 20, and X is equal to Y.

Further, as shown in fig. 2 to 7, in a preferred embodiment, the guide hole 10 is provided at the second end of the outer cylinder 1, and the connection ring 2 is sleeved at the second end of the outer cylinder 1. Further, as shown in fig. 12, a partial region of the connection ring 2 is sleeved outside the second end of the outer cylinder 1, the partial region is not opposite to the outer cylinder 1, and a hollow cavity surrounded by a partial structure of the connection ring 2 protruding out of the outer cylinder 1 is used for shielding a partial structure of the inner core protruding out of the outer cylinder 1, so that the beauty of the cosmetic packaging bottle is improved, the inner core can be prevented from being pressed by mistake, and the partial structure of the inner core protruding out of the outer cylinder 1 is protected.

In a possible embodiment, the inner core further comprises a bottom cap 7, the bottom cap 7 is connected to the other end of the bottle body 5 away from the pump head 4, and the outer diameter of the bottom cap 7 is larger than the outer diameter of the outer barrel 1 and smaller than the inner diameter of the connecting ring 2.

In a possible embodiment, the number of the guiding holes 10, the sliding grooves 14 and the positioning posts 20 is two, and the two positioning posts 20 are symmetrically arranged on the outer side of the inner core relative to the axis of the inner core. The guiding holes 10 and the positioning pillars 20 are arranged in a one-to-one correspondence manner, and the guiding holes 10 and the sliding grooves 14 are arranged in a one-to-one correspondence manner, that is, one guiding hole 10 and one sliding groove 14 are in one group, and the other guiding hole 10 and the other sliding groove 14 are in the other group, and when one positioning pillar 20 extends into one group of guiding holes 10 and sliding grooves 14, the other positioning pillar 20 extends into the other group of guiding holes 10 and sliding grooves 14. So set up for when pressing the inner core, relative two reference column 20 remove along its guiding hole 10 that corresponds respectively, and guiding hole 10 plays limiting displacement to its reference column 20 that corresponds for the removal of inner core is more stable.

In order to facilitate the resetting of the inner core, in a preferred embodiment, an elastic resetting piece 9 is sleeved at one end of the bottle body 5, and two ends of the elastic resetting piece 9 are respectively abutted with the outer cylinder 1 and the bottle body 5. When the bottle body 5 is pressed, the elastic resetting piece 9 compresses to store force, and after hands are released, the elastic resetting piece 9 pushes the bottle body 5 to move reversely so that the inner core is reset.

Or, as shown in fig. 12, in a preferred embodiment, two ends of the elastic restoring member 9 are respectively abutted against the pump head 4 and the bottle body 5, specifically, the elastic restoring member 9 is a spring, the spring is sleeved on the pump head 4, when the bottle body 5 is pressed, more areas of the pump head 4 extend into the bottle body 5, so as to squeeze the spring, the spring compresses the stored force, after the bottle body 5 is loosened, the spring pushes the end of the pump head 4 to move reversely, so that more areas of the pump head 4 extend out of the bottle body 5, so as to push the bottle body 5 to move reversely, so as to restore the inner core.

In addition, the suitable elastic resetting piece 9 can be selected, so that when the elastic resetting piece 9 is in an initial state, a partial area of the inner core extends out of the outer shell, when the inner core and the outer shell are installed, certain pressure needs to be applied to the inner core to enable the positioning column 20 to enter the positioning hole, the positioning column 20 is limited by the positioning hole, at the moment, the elastic resetting piece 9 completes the pre-compression process, the pre-compression process enables the elastic resetting piece 9 to be compressed to a certain extent, and the elastic resetting piece can be further compressed on the basis, so that the resetting operation after the inner core is pressed subsequently to extrude the pump head 4 is realized. When the inner core is disassembled and the connecting ring 2 is rotated, when the positioning column 20 moves to a position near the inclined surface, due to the elastic action of the elastic resetting piece 9, the elastic resetting piece 9 pushes the inner core, so that the positioning column 20 upwards moves to the second groove body along the inclined surface, and part of the structure of the inner core extends out of the outer shell, and the inner core is conveniently pulled out.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.