A rotatable sealed cream bottle

By designing a rotatable, sealed ointment bottle, and employing a positioning ring and multiple sealing structures, the problems of insufficient sealing and cumbersome assembly of ointment bottles are solved, achieving efficient assembly and environmentally friendly recycling.

CN224386973UActive Publication Date: 2026-06-23YUYAO CAIYUN COSMETICS PACKAGING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUYAO CAIYUN COSMETICS PACKAGING CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The existing ointment bottle structure lacks effective sealing, making the contents easily contaminated, cumbersome and inefficient to assemble, and inconvenient to recycle.

Method used

A rotatable, sealed ointment bottle was designed, which achieves simple positioning and sealing of components through positioning rings and multiple sealing structures. All parts are made of the same plastic material to simplify assembly and recycling.

Benefits of technology

It improves the assembly efficiency of ointment bottles, ensures the airtightness of the contents during storage and use, enhances the user experience, facilitates recycling, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a rotatable, sealed ointment bottle, relating to the field of ointment container technology. It includes an outer cap, an inner cap, a bottle body, a positioning ring, a screw, a screw sleeve, and a bottom cap. By setting the positioning ring, the bottom cap and bottle body are positioned, indirectly positioning other components, making product assembly simpler and faster, improving production efficiency. Furthermore, by forming seals at the convex ring and through-hole, the inner cap and bottle body, the screw sleeve and bottle body, and the screw, a sealed cavity is formed, effectively preventing contamination of the contents during storage and use. This solution also improves user experience and comfort by designing the feel and sound during rotation. All parts are made of the same material, avoiding the mixing of multiple materials, facilitating recycling, and being more environmentally friendly and energy-efficient; it also helps reduce product costs.
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Description

Technical Field

[0001] This utility model relates to the field of ointment container technology, and in particular to a rotatable, sealed ointment bottle. Background Technology

[0002] The existing structures of lipstick bottles are mostly non-sealing or have insufficient sealing, making the contents easily contaminated during storage and use, affecting usability. Furthermore, the numerous components of these bottles make assembly cumbersome, hindering production efficiency. Additionally, the materials used for the components are varied, including metals and plastics, making recycling after use inconvenient. This application addresses these shortcomings. Utility Model Content

[0003] The purpose of this invention is to provide a rotatable, sealed balm bottle. By setting a positioning ring, the bottom cap and bottle body are positioned, thereby indirectly positioning other components, making product assembly simpler and faster. This solves the problem that the assembly efficiency of balm bottles is difficult to improve at present. By setting a sealing structure and forming multiple seals, the problem of no seal or insufficient sealing of balm bottles such as lipstick bottles is solved.

[0004] To address the aforementioned problems, this utility model provides a rotatable, sealed ointment bottle, comprising an outer cap, an inner cap, a bottle body, a positioning ring, a screw, a screw sleeve, and a bottom cap. The outer cap has a raised ring that can be inserted into a through hole at the top of the inner cap and formed a seal through an interference fit. The inner cap is interference-fitted onto the bottle body to provide a seal. The screw sleeve is disposed inside the bottle body, and its edge is interference-fitted with the inner wall of the bottle body to provide a seal. The bottom cap is connected to the screw, and the two can rotate synchronously. The screw's lower shoulder is press-fitted with the screw sleeve via a threaded connection, providing a seal. A sealed cavity is formed inside the bottle to hold the contents. The bottom cap is connected to a positioning ring, and the outer cap is connected to the positioning ring in the latched state. The positioning ring is located on the outside of the bottle and has a step inside to limit the axial position of the bottle. The outer walls of the outer cap and the bottom cap together form the outer surface of the ointment bottle. In use, the outer cap is removed, and the bottom cap is rotated to drive the screw sleeve to push the contents out through the through hole.

[0005] According to one embodiment of the present invention, the inner sidewall of the outer cover is provided with a buckle rib, and the outer edge of the top of the positioning ring is provided with an annular flange that cooperates with the buckle rib.

[0006] According to one embodiment of the present invention, the inner wall of the inner cap is provided with an annular rib, and the outer wall of the bottle is provided with a groove for cooperating with the rib.

[0007] According to one embodiment of the present invention, an annular rib is provided on the inner top wall of the inner cover, and an annular groove is formed between the annular rib and the inner wall of the inner cover. After the inner cover is combined with the bottle body, the top of the bottle body is located in the annular groove and is interference-fitted.

[0008] According to one embodiment of the present invention, the outer wall of the bottle is provided with a second rib, which is used to cooperate with the step in the positioning ring.

[0009] According to one embodiment of the present invention, the outer wall of the bottle is provided with a plurality of vertical ribs I, and the inner cover is provided with a plurality of vertical ribs II. When the inner cover is installed on the bottle body, the vertical ribs I and II are staggered to achieve an anti-rotation connection between the inner cover and the bottle body.

[0010] According to one embodiment of the present invention, the bottle body is provided with an elastic protrusion on the outside, and the inner wall of the bottom cover is provided with a plurality of vertical ribs distributed around the circumference. When the bottom cover is rotated, the elastic protrusion and the vertical ribs cooperate to produce a rotating feel and sound.

[0011] According to one embodiment of the present invention, the inner wall of the receiving cavity of the bottle body is provided with a plurality of guide ribs arranged along the axial direction of the bottle body, and the outer circular surface of the screw sleeve is provided with a plurality of arc surfaces for cooperating with the guide ribs. The guide ribs and the arc surfaces are interference fit, which achieves a sealing effect.

[0012] According to one embodiment of the present invention, the inner bottom wall of the bottle body is provided with an annular ring, and the annular ring contains a hole for installing a screw. After the screw is installed, its shoulder and the annular ring form a space for accommodating a screw sleeve. The screw sleeve is installed here with an interference fit to achieve a sealing effect.

[0013] According to one embodiment of the present invention, the outer side of the positioning ring is provided with a raised rib three, and the inner wall of the bottom cover is provided with a bottom cover groove for cooperating with the raised rib three.

[0014] According to one embodiment of the present invention, the outer side of the positioning ring is provided with a plurality of vertical ribs, and the inner wall of the bottom cover is provided with a plurality of limiting grooves for the vertical ribs to be inserted.

[0015] According to one embodiment of the present invention, the outer cover, inner cover, bottle body, positioning ring, screw, screw sleeve and bottom cover are all made of the same material, preferably plastic.

[0016] According to one embodiment of the present invention, the lower end of the screw is provided with a disc, the disc is provided with a plurality of positioning notches, and the bottom cover is provided with a plurality of positioning ribs for inserting into the positioning notches.

[0017] The beneficial effects of this utility model are as follows: by setting a positioning ring, the positions of the bottom cap and the bottle body are positioned, thereby indirectly achieving the positioning effect of other parts, making product assembly simpler and faster, improving production efficiency, and forming a sealed receiving cavity by creating a seal between the convex ring and the through hole, the inner cap and the bottle body, the screw sleeve and the bottle body, and the screw sleeve and the screw rod, which can effectively prevent the contents from being contaminated during storage and use. This solution also improves the user experience and comfort by setting the feel and sound when rotating. In this solution, all parts are made of the same material, avoiding the mixing of multiple materials, facilitating recycling, and being more environmentally friendly and energy-saving; it also helps to reduce product costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic cross-sectional view of the product of this utility model;

[0020] Figure 2 This is an exploded view of the structure of the product of this utility model;

[0021] Figure 3 It is a 3D view of the outer cover;

[0022] Figure 4 It is a 3D view of the inner cover;

[0023] Figure 5 It is a 3D view of the bottle;

[0024] Figure 6 It is a 3D diagram of the positioning circle;

[0025] Figure 7 It is a 3D view of the threaded sleeve;

[0026] Figure 8 It is a 3D diagram of the screw;

[0027] Figure 9 It is a 3D view of the bottom cover;

[0028] Figure 10 This is the natural state of this utility model;

[0029] Figure 11 This is the rotating state of this utility model. Detailed Implementation

[0030] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0031] A rotatable, sealable ointment bottle, such as Figures 1-11 It includes an outer cap 1, an inner cap 2, a bottle body 3, a positioning ring 4, a screw 6, a screw sleeve 5, and a bottom cap 7. The outer cap 1, inner cap 2, bottle body 3, positioning ring 4, screw 6, screw sleeve 5, and bottom cap 7 are all made of the same material, preferably plastic, which is easy to recycle after use and meets environmental protection requirements.

[0032] like Figure 10 The inner ring 11 of the outer cap 1 is inserted into the through hole 21 at the top of the inner cap 2, forming a seal 1 through an interference fit; the annular rib 23 on the inner top surface of the inner cap 2 is inserted into the receiving cavity of the bottle body 3, forming a seal 2 through an interference fit with the top side wall of the bottle body 3; the screw sleeve 5 is placed in the receiving cavity C of the bottle body 3, forming a seal 3 through an interference fit with the inner side wall of the bottle body 3; the inner side A of the lower part of the thread of the screw sleeve 5 is interference fitted with the shoulder B at the lower end of the screw 6, forming a seal 4. Through the above structure, when the contents are injected into the receiving cavity C inside the bottle body 3, the assembled parts form a sealed receiving cavity.

[0033] This design allows the use of balm-like containers to hold balm-like products such as lipsticks.

[0034] like Figure 3 The outer cover 1 has a protruding ring 11 inside, which can be inserted into the through hole 21 at the top of the inner cover 2 and formed a seal by interference fit; the inner side wall of the outer cover 1 has a buckle 12, which can be ring-shaped or several arc-shaped segments, and the top outer edge of the positioning ring 4 is provided with an annular flange that cooperates with the buckle 12. The two cooperate to achieve the fastening of the outer cover 1.

[0035] like Figure 4The inner cap 2 is installed on the bottle body 3 with an interference fit to provide a seal. The top of the inner cap 2 has a circular through hole 21 for the contents to be discharged. When sealing, the convex ring 11 is inserted with an interference fit to achieve a seal. The inner side wall of the inner cap 2 has an annular rib 22. The outer wall of the bottle body 3 has a groove 32 for engaging with the rib 22. The bottle body 3 and the inner cap 2 are connected by a snap rib. The inner top wall of the inner cap 2 has an annular rib 23. The annular rib 23 and the inner wall of the inner cap 2 form an annular groove. After the inner cap 2 and the bottle body 3 are combined, the top end of the bottle body 3 is located in the annular groove and is interference fitted. The outer wall of the bottle body 3 has several vertical ribs 31. The inner cap 2 has several vertical ribs 24. When the inner cap 2 is installed on the bottle body 3, the vertical ribs 31 and 24 are staggered to achieve an anti-rotation connection between the inner cap 2 and the bottle body 3.

[0036] The outer surface of this product is formed by the outer cap 1 and the bottom cap 7, which together constitute the outer surface of the ointment bottle. The appearance is simple and beautiful.

[0037] like Figure 5 The upper outer surface of the bottle body 3 has a groove 32 and multiple vertical ribs 31 that cooperate with the vertical ribs 24 of the inner cap 2. The outer wall of the bottle body 3 has raised ribs 34, which cooperate with the step 43 in the positioning ring 4 to provide a limiting function. The outer surface of the bottle body 3 has elastic protrusions 36, and the inner wall of the bottom cap 7 has several vertical ribs 73 distributed circumferentially. When the bottom cap 7 rotates, the elastic protrusions 36 cooperate with the vertical ribs 73 and deform upon contact, producing a tactile sensation and sound of rotation. The upper inner surface of the bottle body 3 forms a cavity C for containing the contents, and the side wall of the cavity C has four raised guide ribs 33. The inner bottom wall of the bottle body 3 has an annular ring 35, such as... Figure 1 The annular ring 35 contains a hole for installing the screw 6. After the screw 6 is installed, its shoulder and the annular ring 35 form a space for accommodating the threaded sleeve 5. The threaded sleeve 5 is installed here with an interference fit to achieve a sealing effect.

[0038] like Figure 6 The positioning ring 4 is set on the outside of the bottle body 3. The top of the positioning ring 4 is provided with a raised outer edge for cooperating with the buckle 12. The inside of the positioning ring 4 is provided with a step 43 for restricting the axial movement of the bottle body 3. The step 43 cooperates with the second rib 34 on the outer wall of the bottle body 3 to restrict the vertical movement of the bottle body 3. The outside of the positioning ring 4 is provided with a third rib 41. The inner wall of the bottom cover 7 is provided with a bottom cover groove 72 for cooperating with the third rib 41. The third rib 41 is a multi-segment arc-shaped rib divided by the fourth rib 42. The third rib 41 cooperates with the bottom cover groove 72 to realize the connection between the bottom cover 7 and the positioning ring 4. The outside of the positioning ring 4 is provided with a number of fourth ribs 42, preferably four sets of fourth ribs 42. The inner wall of the bottom cover 7 is provided with a number of limiting grooves 71 for the insertion of the fourth ribs 42 to realize the connection between the two and make the positioning ring 4 and the bottom cover 7 rotate synchronously.

[0039] like Figure 7 The screw sleeve 5 is installed inside the bottle body 3. The edge of the screw sleeve 5 is press-fitted with the inner wall of the bottle body 3 to provide a seal. The screw sleeve 5 has a threaded structure 51 inside, which mates with the threaded structure 61 of the screw rod 6. The outer circular surface of the screw sleeve 5 has four concave arc surfaces 52. These four concave arc surfaces 52 are press-fitted with the four raised guide ribs 33 on the side wall of the receiving cavity of the bottle body 3 to provide guidance and sealing. The screw hole of the screw sleeve 5 protrudes downward, and the inner surface A of the lower part of the thread of the screw sleeve 5 is press-fitted with the shoulder B of the lower end of the screw rod 6 to form a seal.

[0040] like Figure 8 The upper part of the screw 6 is provided with a threaded structure 61, which mates with the threaded structure 51 of the screw sleeve 5. The lower end of the screw 6 is provided with a disc 62, which has four positioning notches 63.

[0041] like Figure 9 The bottom cover 7 has several positioning ribs 74 for inserting into the positioning notch 63, thus connecting the bottom cover 7 and the screw 6, allowing them to rotate synchronously. The inner wall of the bottom cover 7 has a bottom cover groove 72 for engaging with the raised rib 41. Several vertical ribs 73 are distributed circumferentially on the inner wall of the bottom cover 7. When the bottom cover 7 rotates, the elastic protrusion 36 engages with the vertical ribs 73 and deforms upon contact, producing a tactile sensation and sound of rotation.

[0042] like Figure 10 As shown, this is the state when the lipstick bottle is freshly filled and unused. The entire product forms 4 sealing points: Sealing 1, Sealing 2, Sealing 3, and Sealing 4.

[0043] like Figure 11 As shown, remove the outer cap, hold the middle of the top cap, and rotate the bottom cap 7 in the direction of the arrow shown in the figure. The bottom cap 7 drives the screw 6 to rotate together. The screw 6 drives the screw sleeve 5 to move upward along the four guide ribs 33 on the inner wall of the bottle body 3 through the thread structure, thereby driving the contents to be discharged through the through hole 21 at the top of the inner cap 2, so as to achieve the purpose of use.

[0044] like Figure 11 As shown, during the rotation, the two symmetrical elastic protrusions 36 at the lower outer end of the bottle body 3 come into contact with and disengage from the vertical rib 73 at the lower inner wall of the bottom cover 7, generating a tactile sensation and sound of rotation, providing the user with a good experience and comfort.

[0045] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A rotatable, sealed, paste bottle, characterized by: The system includes an outer cap (1), an inner cap (2), a bottle body (3), a positioning ring (4), a screw (6), a screw sleeve (5), and a bottom cap (7). The outer cap (1) has a raised ring (11) inside, which can be inserted into the through hole (21) at the top of the inner cap (2) and formed a seal by interference fit. The inner cap (2) is installed on the bottle body (3) by interference fit to provide a seal. The screw sleeve (5) is set inside the bottle body (3), and the edge of the screw sleeve (5) is interference fit with the inner wall of the bottle body (3) to provide a seal. The bottom cap (7) is connected to the screw (6), and the two can rotate synchronously. The screw (6) and the screw sleeve (5) are connected by threads. The lower shoulder of the screw (6) is press-fitted with the screw sleeve (5) to provide a seal; a sealed cavity is formed inside the bottle body (3) for storing the contents; the bottom cover (7) is connected to the positioning ring (4); the outer cover (1) is connected to the positioning ring (4) in the snap-fit ​​state; the positioning ring (4) is set outside the bottle body (3) and has a step (43) inside to limit the axial position of the bottle body (3); the outer walls of the outer cover (1) and the bottom cover (7) together form the outer surface of the ointment bottle; in use, the outer cover (1) is removed and the bottom cover (7) is rotated to drive the screw sleeve (5) to push the contents out through the through hole (21).

2. A rotatable, sealed, paste bottle according to claim 1, wherein: The inner wall of the outer cover (1) is provided with a buckle rib (12), and the outer edge of the top of the positioning ring (4) is provided with an annular flange that cooperates with the buckle rib (12).

3. The rotatable, sealed, paste bottle of claim 1, wherein: The inner wall of the inner cap (2) is provided with an annular rib (22), and the outer wall of the bottle body (3) is provided with a groove (32) for cooperating with the rib (22).

4. A rotatable, sealed, paste bottle according to claim 3, wherein: The inner top wall of the inner cover (2) is provided with an annular rib (23), and an annular groove is formed between the annular rib (23) and the inner wall of the inner cover (2). After the inner cover (2) is combined with the bottle body (3), the top of the bottle body (3) is located in the annular groove and is interference-fitted.

5. A rotatable, sealed, paste bottle according to claim 1 or 2, characterised in that: The outer wall of the bottle body (3) is provided with a second rib (34), which is used to cooperate with the step (43) in the positioning ring (4).

6. A rotatable, sealed, paste bottle according to claim 5, wherein: The outer wall of the bottle body (3) is provided with several vertical ribs (31), and the inner cover (2) is provided with several vertical ribs (24). When the inner cover (2) is installed on the bottle body (3), the vertical ribs (31) and the vertical ribs (24) are staggered to achieve the anti-rotation connection between the inner cover (2) and the bottle body (3).

7. A rotatable, sealed, paste bottle according to claim 6, wherein: The bottle body (3) has an elastic protrusion (36) on the outside, and the bottom cover (7) has several vertical ribs (73) distributed around the inner wall. When the bottom cover (7) rotates, the elastic protrusion (36) and the vertical ribs (73) cooperate to produce a rotating feel and sound.

8. The rotatable, sealed, paste bottle of claim 5, wherein: The positioning ring (4) has a raised rib (41) on its outside, and the bottom cover (7) has a bottom cover groove (72) on its inner wall for cooperating with the raised rib (41).

9. A rotatable, sealed, paste bottle according to claim 8, wherein: The outer side of the positioning ring (4) is provided with several vertical ribs (42), and the inner wall of the bottom cover (7) is provided with several limiting grooves (71) for the vertical ribs (42) to be inserted.

10. The rotatable, sealed, paste bottle of claim 1, wherein: The outer cap (1), inner cap (2), bottle body (3), positioning ring (4), screw (6), screw sleeve (5) and bottom cap (7) are all made of the same material.