A split balm stick

By designing a replaceable, split perfume stick structure, the problem of waste after the perfume stick is used up is solved, achieving replaceable use and pollution prevention, reducing waste and ensuring ease of use.

CN224584346UActive Publication Date: 2026-08-04吴汉文
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
吴汉文
Filing Date
2025-07-17
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing perfume sticks have intact outer shells after use, but they cannot be reused, resulting in waste of resources.

Method used

Designed as a replaceable split structure, it includes a housing, a core replacement assembly, and a push assembly. The perfume stick is extruded and replaced through the cooperation of a rotating seat and a push rod. A locking seat and a fitting part ensure a tight connection. A limiting plate and a fixing shell prevent the perfume stick from retracting, and an inner cover protects the perfume stick.

Benefits of technology

It enables the use of replaceable perfume sticks, reduces material waste, ensures consistent length for each use and prevents them from retracting, and protects the perfume sticks from contamination.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of split balm sticks. Including shell, refill assembly and push assembly, assembly cavity for refill assembly embedding is equipped in shell, assembly plate is equipped at the lower end opening of shell, push assembly includes rotating seat and push rod, rotating seat is equipped with the extension part extending upwards, extension part passes through the assembly hole on assembly plate and can be rotatably connected in assembly hole, push rod is cooperatively connected in extension part, push rod is moved upwards and abuts on refill assembly in the process of rotating seat rotation;Refill assembly includes core shell and push seat, the outer side wall of push seat is slidably matched on the inner cavity side wall of core shell, push seat is limited to the bottom of core shell, the bottom of push seat is equipped with the recess portion matched with the upper end surface of push rod.The utility model designs the core shell that the balm stick is enclosed as replaceable structure, reduces material waste.
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Description

Technical Field

[0001] This utility model belongs to the field of daily necessities technology, specifically relating to a split-type perfume stick. Background Technology

[0002] Solid perfume sticks, also known as solid perfumes, are wax-like cosmetics made by dissolving or adsorbing fragrance into a hardening agent. They belong to a non-traditional perfume type. For ease of use, the structure containing the solid perfume stick is designed so that it can be partially squeezed out by twisting, using only the squeezed portion to avoid applying too much or causing contamination and waste on other areas. After use, the outer cap is placed on the solid perfume stick to protect it and lock in the fragrance.

[0003] However, current designs of this type are for single use only. After the perfume stick is used up, it is thrown away whole. In fact, the outer shell of the perfume stick is still intact after it is used up, and throwing it away directly will cause waste of resources. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a split perfume stick, which reduces material waste by designing the core shell containing the perfume stick as a replaceable structure.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A split-type perfume stick includes a shell, a refill assembly, and a push assembly. The shell has an assembly cavity for the refill assembly to be inserted. An assembly plate is located at the lower opening of the shell. The push assembly includes a rotating seat and a push rod. The rotating seat has an upwardly extending extension that passes through an assembly hole on the assembly plate and is rotatably connected to the assembly hole. The push rod is engaged with the extension and moves upward during rotation of the rotating seat, abutting against the refill assembly. The extension has an internal thread, and the lower end of the push rod has a screw threaded to the internal thread. A retainer is located on the outer wall of the extension, and an upwardly extending fitting portion is located at the edge of the assembly hole. As the extension passes through the assembly hole from bottom to top, the fitting portion is fitted between the retainer and the rotating seat. The lower end face of the assembly plate has a groove, and the upper end face of the rotating seat has a protrusion that engages with the groove.

[0007] The core-changing assembly includes a core shell and a pusher seat. The outer wall of the pusher seat is slidably fitted onto the inner wall of the core shell. The pusher seat is located at the bottom of the core shell, and the bottom of the pusher seat has a recessed portion that mates with the upper end face of the push rod. The core-changing assembly also includes an inner cover, which closes onto the upper opening of the core shell. The assembly cavity has several inwardly pointing limiting plates arranged in a circumferential array. The end of the limiting plate facing the center of the assembly cavity has an upward-opening embedding groove. The several embedding grooves enclose an embedding cavity, and the outer wall of the core shell fits into the embedding cavity. The core-changing assembly also includes a fixing shell, which has a through-cavity. The upper edge of the fixing shell has an inwardly extending pressing portion. The outer wall of the fixing shell has an elastic buckle. During the process of embedding the fixing shell into the assembly cavity, the male buckle on the elastic buckle mates with the female groove on the inner wall of the upper edge of the assembly cavity, and the lower end of the pressing portion abuts against the upper end of the core shell.

[0008] The split perfume stick with this structure primarily uses a refill assembly to hold the perfume stick. To allow the perfume stick to be extruded and retracted, an assembly plate is provided at the lower end of the outer shell. An extension on the rotating base passes through an assembly hole on the assembly plate. The extension has an internal thread that mates with the screw at the lower end of the push rod. Therefore, as the rotating base rotates, the push rod can be gradually pushed upwards, thereby pushing the perfume stick upwards for the consumer to use. The replaceable refill assembly allows for easy replacement and reuse.

[0009] To ensure a secure connection after assembly, a retaining plate is provided on the outer wall of the extension. Simultaneously, an upwardly extending fitting portion is provided at the edge of the assembly hole. This fitting portion has a gradually inwardly tapering and upwardly inclined structure. Therefore, after the extension is inserted into the fitting portion, it is gradually pushed upwards. The retaining plate presses against the fitting portion, and then upward force is applied until the retaining plate is pushed out of the fitting portion, so that the fitting portion is fitted between the retaining plate and the rotating seat. Thus, after assembly, the rotating seat can be effectively fixed to the outer shell. A screw is then screwed into the internal thread of the extension to fill the internal space. Even if external force pulls on the rotating seat, it will not cause the rotating seat to come out, ensuring a secure connection of the rotating seat.

[0010] Since perfume sticks are extruded, if the extruded length is too long, they are easily broken during use. Furthermore, the rotating seat may rotate in the opposite direction due to the reverse pushing of the perfume stick during application, causing the perfume stick to retract. Therefore, a groove is provided on the lower end face of the assembly plate, and the protrusion on the rotating seat engages with the groove. Thus, when the rotating seat rotates, the protrusion, once inserted into the groove, can lock the rotating seat and prevent it from rotating. This structure has two advantages: firstly, the length of the perfume stick protruding with one rotation of the rotating seat is fixed, so only one rotation is needed to extrude a section each time. Secondly, it prevents the rotating seat from rotating in the opposite direction and preventing the perfume stick from retracting. Even better, the groove and protrusion can be set as two sets symmetrically centered on the assembly hole, so the rotating seat only needs to rotate half a rotation to extrude a section of the perfume stick, further shortening the extrusion length.

[0011] To facilitate the replacement and pushing of the core replacement assembly, a core shell is first designed to accommodate the perfume stick. A pusher seat slides along the inner wall of the core shell, embedding itself into the core shell from top to bottom. A limiting part at the bottom of the core shell prevents the pusher seat from pushing downwards. The perfume stick is positioned on the upper surface of the pusher seat. A recessed part on the bottom of the pusher seat mates with the upper surface of the push rod. Therefore, after the core shell is inserted into the assembly cavity, rotating the lower end of the rotating seat gradually pushes the push rod upwards. The push rod, against the recessed part, simultaneously pushes the pusher seat upwards, thus squeezing the perfume stick out of the upper opening of the core shell. However, without this limiting part, the core shell might move upwards along with the pusher seat. Therefore, several limiting plates are installed within the assembly cavity. The embedding grooves on these limiting plates form an embedding cavity, allowing the outer wall of the core shell to be held within this cavity, creating resistance and keeping the core shell within the cavity. However, since the upper end of the core shell is not... Despite downward resistance, the structure still pushes the core shell upwards due to excessive upward thrust. Therefore, a fixing shell is added. The pressing part of the upper edge of the fixing shell abuts against the upper end of the core shell. The male snap of the elastic buckle on the outer wall of the fixing shell mates with the female groove on the inner wall of the assembly cavity, thereby fixing and pressing the core shell into the embedding cavity. Therefore, the perfume stick will gradually extend upwards from the core shell when the pusher is subjected to an upward lifting force, making it convenient for consumers to use. When the pusher is pushed to the top of the core shell, the perfume stick will be used up and needs to be replaced. To replace the perfume stick, press the elastic buckle to release the male snap from the female snap, so that the fixing shell can be removed upwards to release the restriction on the core shell. Then, pull the core shell out of the embedding cavity and replace it with a new core shell. In order to prevent the perfume stick inside the new core shell from being contaminated, an inner cover is added to the upper opening of the core shell to protect the perfume stick inside. After the new core shell is installed, open the inner cover and it can be used.

[0012] Furthermore, the outer cover is closed onto the fixed shell, and the fixing groove inside the outer cover cooperates with the fixing post on the fixed shell; the push base is provided with a downwardly recessed annular groove.

[0013] Compared with the prior art, the advantages of this utility model are as follows: by rotating the rotating seat, the push rod is rotated upward and pushed against the push seat to push out the perfume stick. The cooperation between the protrusion and the groove means that only one rotation is needed each time to squeeze out a section of perfume stick to meet the needs of consumers. At the same time, it can avoid the perfume stick from retracting due to the reverse rotation of the rotating seat. The core shell can set the perfume stick separately, which is convenient for replacement. It can also be embedded and fixed in the embedding cavity. The inner cavity formed by the inner cover, the core shell and the push seat can well accommodate the perfume stick, avoid external contamination and facilitate replacement. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a perspective view of the present utility model;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 For the present utility model Figure 2 AA section view;

[0018] Figure 4 For the present utility model Figure 3 A magnified view of a portion at point C;

[0019] Figure 5 For the present utility model Figure 3 A magnified view of a portion at point D;

[0020] Figure 6 For the present utility model Figure 3 A magnified view of a portion at point E;

[0021] Figure 7 For the present utility model Figure 2 BB cross-sectional view;

[0022] Figure 8 For the present utility model Figure 7 A magnified view of a portion at point F;

[0023] Figure 9 This is an exploded view of the present invention;

[0024] Figure 10 This is a perspective cross-sectional view of the outer shell of this utility model;

[0025] Figure 11 This is a sectional perspective view of the outer cover of this utility model.

[0026] The components are as follows: 1. Outer shell; 11. Assembly cavity; 111. Limiting plate; 112. Embedding groove; 113. Embedding cavity; 114. Female buckle; 12. Assembly plate; 121. Assembly hole; 122. Fitting part; 123. Groove; 2. Core changing assembly; 21. Core shell; 211. Limiting part; 22. Push seat; 221. Recessed part; 222. Annular groove; 23. Inner cover; 24. Fixing shell; 241. Pressing part; 242. Elastic buckle; 243. Male buckle; 244. Fixing post; 3. Pushing assembly; 31. Rotating seat; 311. Extension part; 312. Internal thread; 313. Card seat; 314. Protruding post; 32. Push rod; 321. Screw; 4. Outer cover; 41. Fixing groove. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The specific embodiments of this utility model will now be described with reference to the accompanying drawings:

[0029] like Figure 1-11As shown, a split perfume stick includes a shell 1, a refill assembly 2, and a push assembly 3. The shell 1 has an assembly cavity 11 for the refill assembly 2 to be inserted. An assembly plate 12 is provided at the lower opening of the shell 1. The push assembly 3 includes a rotating base 31 and a push rod 32. The rotating base 31 has an upwardly extending extension 311. The extension 311 passes through an assembly hole 121 on the assembly plate 12 and is rotatably connected to the assembly hole 121. The push rod 32 is fitted into the extension 311. The push rod 32 moves upward and abuts against the refill assembly 2 during the rotation of the rotating base 31. The extension 311 has an internal thread 312, and the lower end of the push rod 32 has a screw 321, which is threadedly connected to the internal thread 312. The outer side wall of the extension 311 has a card seat 313, and the edge of the assembly hole 121 has an upwardly extending fitting part 122. As the extension 311 passes through the assembly hole 121 from bottom to top, the fitting part 122 is fitted between the card seat 313 and the rotating seat 31. The lower end face of the assembly plate 12 has a groove 123, and the upper end face of the rotating seat 31 has a protrusion 314, which fits into the groove 123.

[0030] The core replacement assembly 2 includes a core shell 21 and a pusher 22. The outer wall of the pusher 22 is slidably fitted onto the inner wall of the core shell 21. The pusher 22 is located at the bottom of the core shell 21, and the bottom of the pusher 22 has a recess 221 that mates with the upper end face of the push rod 32. The core replacement assembly 2 also includes an inner cover 23, which covers the upper opening of the core shell 21. The assembly cavity 11 has a plurality of inwardly pointing limiting plates 111 arranged in a circumferential array. The end of the limiting plate 111 facing the center of the assembly cavity 11 has an upwardly opening embedding groove 112. The groove 112 encloses an embedding cavity 113, and the outer wall of the core shell 21 fits into the embedding cavity 113. The core replacement assembly 2 also includes a fixing shell 24, which has a through cavity running vertically through it. The upper edge of the fixing shell 24 has an inwardly extending pressing part 241. The outer wall of the fixing shell 24 has an elastic buckle 242. During the process of embedding the fixing shell 24 into the assembly cavity 11, the male buckle 243 on the elastic buckle 242 fits into the female groove on the inner side wall of the upper edge of the assembly cavity 11, and the lower end of the pressing part 241 abuts against the upper end of the core shell 21.

[0031] Furthermore, the outer cover 4 is closed onto the fixed shell 24, and the fixing groove 41 inside the outer cover 4 cooperates with the fixing post 244 on the fixed shell 24.

[0032] Description of the working principle of this utility model:

[0033] The split perfume stick with this structure primarily uses a refill assembly 2 to hold the perfume stick. To allow the perfume stick to be extruded and retracted, an assembly plate 12 is provided at the lower end of the outer shell 1. An extension 311 on the rotating seat 31 passes through an assembly hole 121 on the assembly plate 12. The extension 311 has an internal thread 312 that mates with the screw 321 at the lower end of the push rod 32. Therefore, during the rotation of the rotating seat 31, the push rod 32 can be gradually pushed upward, thereby pushing the perfume stick upward for consumer use. The replaceable refill assembly 2 allows for easy replacement and reuse.

[0034] To ensure a secure connection after assembly, a retainer 313 is provided on the outer wall of the extension 311. Simultaneously, an upwardly extending fitting portion 122 is provided at the edge of the assembly hole 121. The fitting portion 122 has a structure that gradually tapers inward and tilts upward. Therefore, after the extension 311 is inserted into the fitting portion 122, it is gradually pushed upward. The retainer 313 presses against the fitting portion 122 and continues to exert upward force until the retainer 313 is pushed out of the fitting portion 122, so that the fitting portion 122 is fitted between the retainer 313 and the rotating seat 31. Therefore, after assembly, the rotating seat 31 can be effectively fixed to the outer shell 1. Then, a screw 321 is screwed into the internal thread 312 of the extension 311, filling the internal space of the extension 311. Even if external force pulls on the rotating seat 31, it will not cause the rotating seat 31 to come out, ensuring a secure connection of the rotating seat 31.

[0035] Since the perfume stick is used by extrusion, if the extrusion length is too long, it is easy to break during use. Furthermore, the rotating seat 31 may rotate in the opposite direction due to the reverse pushing of the perfume stick during application, causing the perfume stick to retract during use. Therefore, a groove 123 is provided on the lower end face of the assembly plate 12. The protrusion 314 on the rotating seat 31 cooperates with the groove 123. Thus, during the rotation of the rotating seat 31, when the protrusion 314 enters the groove 123, it can hold the rotating seat 31 to prevent it from rotating. This structure has two advantages: firstly, the length of the perfume stick pushed out by the rotating seat 31 in one rotation is fixed, so each use only requires one rotation to extrude a section, which is sufficient for the consumer; secondly, it prevents the rotating seat 31 from rotating in the opposite direction and preventing the perfume stick from retracting. Even better, the groove 123 and the protrusion 314 can be set as two sets symmetrically centered on the assembly hole 121. Therefore, the rotating seat 31 only needs to rotate half a rotation to push out a section of the perfume stick, further shortening the extrusion length.

[0036] To facilitate the replacement and pushing of the core replacement assembly 2, a core shell 21 is first provided to accommodate the perfume stick. A pusher 22 slides along the inner wall of the core shell 21, embedding itself into the core shell 21 from top to bottom. A limiting part 211 is provided at the bottom of the core shell 21 to prevent the pusher 22 from pushing downwards. The perfume stick is positioned on the upper surface of the pusher 22. The recess 221 on the bottom of the pusher 22 mates with the upper surface of the push rod 32. Therefore, after the core shell 21 is inserted into the assembly cavity 11, the push rod 32 is gradually pushed upwards during the rotation of the lower rotating seat 31. The push rod 32 pushes the pusher 22 against the recess 221, thereby squeezing the perfume stick out of the upper opening of the core shell 21. However, if the core shell 21 is not limited, it may move upwards along with the pusher 22. Therefore, several limiting plates 111 are provided in the assembly cavity 11. The embedding grooves 112 on the limiting plates 111 form an embedding cavity 113. The outer wall of the core shell 21 can be stuck in the embedding cavity 113, so that its periphery is clamped, thereby forming resistance to keep the core shell 21 in the embedding cavity 113. However, because the core shell 21 is not limited, the core shell 221 is not pushed upwards. Since there is no downward resistance at the upper end of 1, the structure will still push the core shell 21 upward due to excessive upward thrust. Therefore, a fixing shell 24 is added. The pressing part 241 of the upper edge of the fixing shell 24 abuts against the upper end of the core shell 21. The male buckle 243 of the elastic buckle 242 on the outer side wall of the fixing shell 24 cooperates with the female groove on the inner side wall of the assembly cavity 11, thereby fixing and pressing the core shell 21 into the embedded cavity 113. Therefore, when the push seat 22 is subjected to an upward pushing force, the perfume stick will gradually extend upward from the core shell 21, making it convenient for consumers to use. When the push seat 22 is subjected to an upward pushing force, the perfume stick will gradually extend upward from the core shell 21, making it convenient for consumers to use. When the core shell 21 is lifted to the top, the perfume stick will be used up and needs to be replaced. Press the elastic buckle 242 to release the male buckle 243 from the female buckle 114, so that the fixing shell 24 can be removed upwards to release the restriction on the core shell 21. Then pull the core shell 21 out of the embedded cavity 113 and replace it with a new core shell 21. In order to prevent the perfume stick inside the new core shell 21 from being contaminated, an inner cover 23 is added to the upper opening of the core shell 21 to protect the perfume stick inside. After the installation of the new core shell 21 is completed, open the inner cover 23 and it can be used.

[0037] Since the inner cover 23 has been opened during use and the perfume stick has extended upwards from the core shell 21 during the pushing process, the inner cover 23 is no longer suitable to close the perfume stick. However, if the perfume stick is left exposed, the fragrance will dissipate and it will also be contaminated by contact with other items. Therefore, an outer cover 4 is added. The outer cover 4 is closed on the fixed shell 24 and is locked in place by the cooperation of the fixed groove 41 and the fixed post 244 to prevent it from falling off and to make it easy to pull up and disassemble.

[0038] When the perfume stick is first produced, it is solidified by melting it above the pusher 22. If the upper surface of the pusher 22 is flat, the perfume stick after melting will not have a structure to hold it in place. It is not practical to add an upwardly extending fixing rod in the middle of the pusher 22, because the perfume stick is used by applying it. The fixing rod embedded in the middle will affect the use of the perfume stick. Therefore, a downwardly recessed annular groove 222 is provided on the pusher 22. When the perfume stick is melted during production, some of the material will enter the annular groove 222 to fill it. After solidification, because the perfume stick is recessed in the annular groove 222, its perimeter can be well secured and it is not easy to fall off.

[0039] The beneficial effects of this utility model are as follows: by rotating the rotating seat 31, the pushing rod 32 is rotated upward and pushed against the push seat 22 to push out the perfume stick. The cooperation between the protrusion 314 and the groove 123 means that only one rotation is needed each time it is used to squeeze out a section of perfume stick to meet the needs of consumers. At the same time, it can avoid the perfume stick from retracting due to the reverse rotation of the rotating seat 31. The setting of the core shell 21 can set up the perfume stick separately, which is convenient for replacement. It can also be embedded and fixed in the embedding cavity 113. The inner cavity formed by the inner cover 23, the core shell 21 and the push seat 22 can well accommodate the perfume stick, avoid external contamination and facilitate replacement.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A split-type perfume stick, characterized in that: The device includes a housing, a core-changing assembly, and a pushing assembly. The housing has an assembly cavity for the core-changing assembly to be embedded in. An assembly plate is provided at the lower opening of the housing. The pushing assembly includes a rotating seat and a pushing rod. The rotating seat has an upwardly extending extension. The extension passes through an assembly hole on the assembly plate and is rotatably connected to the assembly hole. The pushing rod is connected to the extension. The pushing rod moves upward and abuts against the core-changing assembly during the rotation of the rotating seat.

2. The split-type perfume stick according to claim 1, characterized in that: The extension has an internal thread, and the lower end of the push rod has a screw, which is threadedly connected to the internal thread.

3. The split-type perfume stick according to claim 2, characterized in that: The outer wall of the extension is provided with a card seat, and the edge of the assembly hole is provided with an upwardly extending fitting part. As the extension passes through the assembly hole from bottom to top, the fitting part is fitted between the card seat and the rotating seat.

4. The split-type perfume stick according to claim 3, characterized in that: The lower end face of the assembly plate is provided with a groove, and the upper end face of the rotating seat is provided with a protrusion, which fits into the groove.

5. The split perfume stick according to claim 1, characterized in that: The core replacement assembly includes a core shell and a pusher seat. The outer side wall of the pusher seat is slidably fitted onto the inner cavity side wall of the core shell. The pusher seat is located at the bottom of the core shell, and the bottom of the pusher seat is provided with a recess that mates with the upper end face of the push rod.

6. The split perfume stick according to claim 5, characterized in that: The core replacement assembly also includes an inner cover, which closes onto the upper opening of the core shell.

7. The split-type perfume stick according to claim 5, characterized in that: The assembly cavity is provided with several inwardly pointing limiting plates arranged in a circular array. The end of the limiting plate facing the center of the assembly cavity is provided with an upward-opening embedding groove. Several embedding grooves are enclosed to form an embedding cavity, and the outer wall of the core shell is fitted into the embedding cavity.

8. The split perfume stick according to claim 7, characterized in that: The core replacement assembly also includes a fixing shell, which has a cavity running vertically through it. The upper edge of the fixing shell has an inwardly extending pressing part, and the outer side wall of the fixing shell has an elastic buckle. During the process of the fixing shell being inserted into the assembly cavity, the male buckle on the elastic buckle cooperates with the female groove on the inner side wall of the upper edge of the assembly cavity, and the lower end of the pressing part abuts against the upper end of the core shell.

9. The split-type perfume stick according to claim 8, characterized in that: It also includes an outer cover, which covers the fixed shell, and the fixing groove inside the outer cover cooperates with the fixing post on the fixed shell.

10. The split perfume stick according to claim 5, characterized in that: The push base is provided with a downward-recessed annular groove.