A dual-bottle replaceable lotion bottle
By designing a double-bottle replaceable lotion bottle with a shoulder sleeve and locking groove structure, the problem of complex inner and outer cap structures and inconvenient replacement in the existing technology is solved. This enables convenient disassembly and use of the inner bottle, making it more widely applicable and avoiding accidental squeezing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO JINYU TECHNOLOGY INDUSTRY CO LTD
- Filing Date
- 2025-09-10
- Publication Date
- 2026-07-03
AI Technical Summary
The existing dual-tube replaceable emulsion nozzles have complex inner and outer cap structures, making production and assembly inconvenient and replacement costs high, resulting in an inconvenient replacement process.
Design a dual-bottle replaceable lotion bottle. The inner bottle is detachable and can be installed by using a shoulder sleeve and locking groove structure. Combined with the detachable design of the pump body assembly, the inner bottle assembly can be detached and installed by rotating the locking key and locking groove. The pump body is equipped with a cap that can be pressed individually or simultaneously, and a buckle prevents accidental pressing.
It enables convenient replacement and use of the inner bottle, has wider applicability, avoids accidental compression during transportation, and reduces the complexity of production and replacement.
Smart Images

Figure CN224448839U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of floor scrubber technology, specifically to a dual-bottle replaceable emulsion bottle. Background Technology
[0002] A lotion bottle is a micro-sprayer that dispenses liquid cream-type cosmetics (lotions) from a container by pressing the nozzle of a lotion pump. Its working principle is that pressing the nozzle cap causes the bottle's internal volume to periodically increase and decrease, increasing the liquid pressure and thus drawing in and expelling the liquid. Patent application number CN202221013249.2 discloses a dual-tube replaceable antistatic polymer lotion spray head, designed to address the technical problems of existing similar products lacking inner and outer caps and a top cover, resulting in inconvenient production and assembly, and requiring improvements in material preparation. The key features of this emulsion spray head include an outer bottle containing a large inner bottle and a small inner bottle, as well as corresponding large and small pump core assemblies. An outer cap is fitted around the outer diameter of the inner cap. Symmetrically arranged arc-shaped clamping posts are located on both sides of the center of the outer cap. Simultaneously, the clamping posts of the outer cap insert into the clamping holes on both sides of the top of the inner cap, while the positioning posts of the inner cap are respectively fitted into the protruding post holes in the groove at the top of the large ring. A central platform groove is protruding in the center of the top of the outer cap, and symmetrically opened cap posts are protruding in the center of the bottom of the cap. The cap posts of the cap are fastened and fixed to the central platform groove of the outer cap. A sealing cap is located inside the bottle opening on one side of the large inner bottle. The large ring, large inner bottle, and outer bottle are fastened together as a single unit. The inner bottle replacement structure of this emulsion bottle is relatively complex, resulting in high manufacturing costs and inconvenient replacement. Summary of the Invention
[0003] (a) Technical problems to be solved
[0004] The problem to be solved by this application is to provide a dual-bottle replaceable lotion bottle that can overcome the defects in the prior art.
[0005] (II) Technical Solution
[0006] The embodiments in this specification provide the following technical solutions:
[0007] This specification provides a dual-bottle replaceable lotion bottle, including a bottle body and a pump assembly. The pump assembly is detachably mounted on the top of the bottle body. An inner bottle assembly is detachably mounted inside the bottle body. The inner bottle assembly includes a shoulder sleeve, a bottom cap, and an inner bottle body. The inner bottle bodies are symmetrically fitted together. The shoulder sleeve and the bottom cap are respectively fitted onto the upper and lower ends of the inner bottle bodies. The shoulder sleeve has symmetrically provided positioning holes, through which the bottle openings of the inner bottles pass. The two inner bottles can be joined together and fixed by the shoulder sleeve. The shoulder sleeve has symmetrically provided locking keys, and the inner wall of the bottle body has symmetrically provided locking grooves, with the locking keys placed in the locking grooves. By rotating the inner bottle assembly to disengage the locking keys from the locking grooves, the inner bottle assembly can be detached from the bottle body, thereby replacing the inner bottles.
[0008] In some embodiments, the inner bottle is a semi-cylinder, the planar portion of the inner bottle is fitted and the bottom of the fitted area forms a positioning groove, the positioning groove is symmetrically provided on the inner bottle assembly, and the inner wall of the bottom cover is symmetrically provided with positioning ribs, the positioning ribs being placed in the positioning groove.
[0009] In some embodiments, each side of the locking groove is provided with an inclined guide portion, the locking key can slide along the guide portion, the locking key is provided with a concave portion, the concave portion corresponds to the protrusion in the locking groove, and the outer wall of the bottle mouth is provided with a snap-fit rib, the snap-fit rib is engaged with one side of the positioning hole.
[0010] In some embodiments, the pump body assembly includes an outer large ring, an inner large ring, an inner cover, and a pump core. The outer large ring is threaded onto the bottle body, the inner large ring is fixed inside the outer large ring, the inner cover is movably disposed inside the inner large ring, the pump core is disposed inside the inner cover and connected to the inner bottle body, and the inner cover is symmetrically provided with hollow positioning posts, and the pump core passes through the positioning posts to connect to the inner bottle body.
[0011] In some embodiments, the bottom of the inner ring is provided with a retaining ring, and a plurality of blocks are provided at equal intervals on the inner wall of the inner ring. The bottom of the inner cover is surrounded by a flange, which is placed between the blocks and the retaining ring. The inner cover is symmetrically provided with slots, and the positioning post is placed in the slot. Each slot is fitted with a cap.
[0012] In some embodiments, each of the head caps is provided with a liquid outlet hole and communicates with the pump core. Each of the head caps has a concave pressing part on the top. Each of the head caps is covered with a buckle. Each of the head caps has a protruding nozzle at the liquid outlet hole. Each buckle has a limiting groove inside. Each protruding nozzle is placed in the limiting groove. The other end of the buckle has an elastic snap.
[0013] (III) Beneficial Effects
[0014] Compared with the prior art, the beneficial effects that the at least one technical solution adopted in the embodiments of this specification can achieve include at least the following: the inner bottle assembly can be rotated and disassembled through the locking key and locking groove on the shoulder sleeve, allowing the emulsion in the two inner bottles of the inner bottle assembly to be replaced; the pump body is equipped with a head cap, allowing for separate pressing of one side of the material or simultaneous pressing, and the two materials can be mixed for wider applicability; in addition, the buckle can effectively prevent accidental pressing and avoid squeezing during transportation to prevent the material from spraying out. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a perspective view from this application;
[0017] Figure 2 This is a sectional view in this application;
[0018] Figure 3 This is a perspective view of the inner bottle component in this application;
[0019] Figure 4 This is a three-dimensional view of the shoulder cover in this application;
[0020] Figure 5 This is a perspective view of the inner bottle in this application;
[0021] Figure 6 This is a perspective view of the bottom cover in this application;
[0022] Figure 7 This is a perspective view of the bottle in this application;
[0023] Figure 8 This is a perspective view of the inner cover in this application;
[0024] Figure 9 This is a three-dimensional view of the inner major circle in this application;
[0025] Figure 10 This is a perspective view of the pump body assembly in this application;
[0026] Figure 11 This is a three-dimensional view of the snap fastener in this application.
[0027] The component names corresponding to the various labels in the attached diagram are: 1. Bottle body; 2. Shoulder sleeve; 3. Bottom cap; 4. Inner bottle body; 5. Positioning hole; 6. Bottle mouth; 7. Locking key; 8. Locking groove; 9. Positioning groove; 10. Positioning rib; 11. Guide part; 12. Concave part; 13. Protruding part; 14. Snap-fit rib; 15. Outer large ring; 16. Inner large ring; 17. Inner cap; 18. Pump core; 19. Positioning post; 20. Retaining ring; 21. Stop block; 22. Flange; 23. Slot; 24. Head cap; 25. Dispensing hole; 26. Pressing part; 27. Snap-fit; 28. Protruding nozzle; 29. Limiting groove; 30. Buckle. Detailed Implementation
[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0029] The following specific examples illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. This application can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this application. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0030] It should be noted that various aspects of embodiments within the scope of the appended claims are described below. It will be apparent that the aspects described herein can be embodied in a wide variety of forms, and any particular structure and / or function described herein is merely illustrative. Based on this application, those skilled in the art will understand that one aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number and aspects set forth herein can be used to implement the device and / or practice the method. Additionally, this device and / or method can be implemented using structures and / or functionalities other than one or more of the aspects set forth herein.
[0031] It should also be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of this application. The illustrations only show the components related to this application and are not drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.
[0032] Additionally, specific details are provided in the following description to facilitate a thorough understanding of the examples. However, those skilled in the art will understand that practice can be carried out without these specific details.
[0033] Combination Figures 1-11 As shown, this application provides a dual-bottle replaceable lotion bottle, including a bottle body 1 and a pump assembly. The pump assembly is detachably installed on the top of the bottle body 1. An inner bottle assembly is detachably installed inside the bottle body 1. The inner bottle assembly includes a shoulder sleeve 2, a bottom cap 3, and an inner bottle 4. The inner bottle 4 is symmetrically fitted together. The shoulder sleeve 2 and the bottom cap 3 are respectively fitted onto the upper and lower ends of the inner bottle 4, forming a whole. In this embodiment, the inner bottle 4 is a semi-cylinder. The flat part of the inner bottle 4 is fitted together, and the bottom of the fitted part forms a positioning groove 9. The inner bottle assembly is symmetrically provided with positioning grooves 9. The inner wall of the bottom cap 3 is symmetrically provided with positioning ribs 10, which are placed in the positioning grooves 9. The shoulder sleeve 2 is symmetrically provided with positioning holes 5. The bottle mouth 6 of the inner bottle 4 passes through the positioning holes 5. The outer wall of the bottle mouth 6 is provided with a snap-fit rib 14, which is engaged with one side of the positioning hole 5. The sleeve 2 and the bottom cover 3 cooperate to fix the two inner bottles 4, so that the inner bottle assembly is formed into a cylinder, which is easy to disassemble and assemble. The shoulder sleeve 2 is symmetrically provided with locking keys 7, and the inner wall of the bottle body 1 is symmetrically provided with locking grooves 8. The locking keys 7 are placed in the locking grooves 8. Rotating the inner bottle assembly causes the locking keys 7 to disengage from the locking grooves 8, and the inner bottle assembly can be disassembled from the bottle body 1. The inner bottle assembly is made of PET material, which is easy to recycle after disassembly. Specifically, one side of the locking groove 8 is provided with an inclined guide part 11. The locking keys 7 can slide along the guide part 11. Therefore, when the inner bottle assembly is rotated, the locking keys 7 can enter the locking groove 8 along the guide part 11 to lock. When rotated in the opposite direction, it can disengage from the bottle body 1 along the guide part 11 for disassembly. The locking keys 7 are provided with a concave part 12, which corresponds to the protrusion 13 in the locking groove 8. After locking, the protrusion 13 is inserted into the concave part 12 to achieve positioning.
[0034] In some embodiments, such as Figure 2 , Figure 8 and Figure 9As shown, the pump assembly includes an outer large ring 15, an inner large ring 16, an inner cover 17, and a pump core 18. The outer large ring 15 is threaded onto the bottle body 1, the inner large ring 16 is fixed inside the outer large ring 15, the inner cover 17 is movably disposed inside the inner large ring 16, and the pump core 18 is disposed inside the inner cover 17 and connected to the inner bottle body 4. Specifically, the inner cover 17 has symmetrically arranged hollow positioning posts 19, and the pump core 18 passes through the positioning posts 19 to connect to the inner bottle body 4. The bottom of the inner large ring 16 has a retaining ring 20. Multiple stops 21 are evenly spaced on the wall. A flange 22 is provided around the bottom of the inner cover 17. The flange 22 is placed between the stops 21 and the retaining ring 20. The inner cover 17 can rotate relative to the inner large ring 16 through the cooperation of the flange 22, the retaining ring 20 and the stops 21. Therefore, the inner cover 17 can remain stationary when the outer large ring 15 drives the inner large ring 16 to rotate. The outer large ring 15 is threaded with the bottle body 1, which can drive the inner large ring 16 and the inner cover 17 to move up and down as a whole, thereby disassembling the entire pump body assembly.
[0035] In some embodiments, such as Figure 8 , Figure 10 and Figure 11 As shown, the inner cover 17 is symmetrically provided with slots 23, and the positioning post 19 is placed in the slot 23. Each slot 23 is fitted with a cap 24, and each cap 24 is provided with a liquid outlet hole 25, which is connected to the pump core 18. Each cap 24 is provided with a concave pressing part 26 at the top. The pressing part 26 can be pressed individually to use the emulsion in a single inner bottle 4, or two can be pressed simultaneously to mix the emulsion. The cap 24 is covered with a buckle 27. Each cap 24 is provided with a protrusion 28 at the liquid outlet hole 25. The buckle 27 is provided with a limiting groove 29, and the protrusion 28 is placed in the limiting groove 29. The other end of the buckle 27 is provided with an elastic buckle 30, which allows the buckle 27 to be detachably assembled onto the cap 24. The bottom of the buckle 27 abuts against the outer ring 15, and the protrusion 28 of the cap 24 is locked by the limiting groove 29, so that the cap 24 cannot be pressed down, thereby avoiding accidental squeezing during carrying and causing discharge contamination.
[0036] In this specification, the same or similar parts between the various embodiments can be referred to mutually. Each embodiment focuses on describing the differences from other embodiments. In particular, the descriptions of the embodiments described later are relatively simple, and relevant parts can be referred to the descriptions of the foregoing embodiments.
[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A dual bottle replaceable emulsion bottle comprising a bottle body (1) and a pump body assembly detachably mounted on the top of the bottle body (1), characterized in that, The inner bottle assembly is detachably installed inside the bottle body (1). The inner bottle assembly includes a shoulder sleeve (2), a bottom cap (3), and an inner bottle body (4). The inner bottle body (4) is symmetrically fitted. The shoulder sleeve (2) and the bottom cap (3) are respectively fitted onto the upper and lower ends of the inner bottle body (4). The shoulder sleeve (2) is symmetrically provided with positioning holes (5). The bottle mouth (6) of the inner bottle body (4) passes through the positioning holes (5). The shoulder sleeve (2) is symmetrically provided with locking keys (7). The inner wall of the bottle body (1) is symmetrically provided with locking grooves (8). The locking keys (7) are placed in the locking grooves (8). The inner bottle assembly can be detached from the bottle body (1) by rotating the inner bottle assembly to disengage the locking keys (7) from the locking grooves (8).
2. The dual-bottle replaceable lotion bottle according to claim 1, characterized in that, The inner bottle (4) is a semi-cylinder. The planar part of the inner bottle (4) is fitted and the bottom of the fitted part forms a positioning groove (9). The positioning groove (9) is symmetrically provided on the inner bottle assembly. The inner wall of the bottom cover (3) is symmetrically provided with positioning ribs (10). The positioning ribs (10) are placed in the positioning groove (9).
3. The dual bottle replaceable emulsion bottle of claim 1, wherein, An inclined guide portion (11) is provided on one side of the locking groove (8). The locking key (7) can slide along the guide portion (11). The locking key (7) is provided with a concave portion (12). The concave portion (12) corresponds to the protrusion (13) in the locking groove (8).
4. The dual bottle replaceable emulsion bottle of claim 1, wherein, The outer wall of the bottle mouth (6) is provided with a snap-fit rib (14), which is engaged with one side of the positioning hole (5).
5. The dual bottle replaceable emulsion bottle of claim 2, wherein, The pump assembly includes an outer large ring (15), an inner large ring (16), an inner cover (17), and a pump core (18). The outer large ring (15) is threaded onto the bottle body (1). The inner large ring (16) is fixed inside the outer large ring (15). The inner cover (17) is movably disposed inside the inner large ring (16). The pump core (18) is disposed inside the inner cover (17) and connected to the inner bottle body (4).
6. The dual bottle replaceable emulsion bottle of claim 5, wherein, Hollow positioning posts (19) are symmetrically arranged on the inner cover (17), and the pump core (18) passes through the positioning posts (19) to connect to the inner bottle body (4).
7. The dual bottle replaceable lotion bottle of claim 5, wherein, The bottom of the inner ring (16) is provided with a retaining ring (20), and multiple blocks (21) are provided at equal intervals on the inner wall of the inner ring (16). The bottom of the inner cover (17) is surrounded by a flange (22), and the flange (22) is placed between the block (21) and the retaining ring (20).
8. The dual bottle replaceable lotion bottle of claim 6, wherein, The inner cover (17) is symmetrically provided with slots (23), the positioning post (19) is placed in the slot (23), and a head cap (24) is inserted into each slot (23).
9. The dual bottle replaceable lotion bottle of claim 8, wherein, Each of the caps (24) is provided with a liquid outlet hole (25) and is connected to the pump core (18). Each of the caps (24) has a concave pressing part (26) on its top.
10. The dual bottle replaceable emulsion bottle of claim 9, wherein, The head cap (24) is provided with an insertion buckle (27) on the top, and the head cap (24) is provided with a convex mouth (28) at the liquid outlet hole (25), the insertion buckle (27) is provided with a limiting groove (29), the convex mouth (28) is arranged in the limiting groove (29), and the other end of the insertion buckle (27) is provided with an elastic buckle (30).