Double ended sealed tube
By designing a double-ended sealing tube and utilizing axial protruding column connection and elastic sealing structure, the problem of existing lipsticks being unable to accommodate multiple types of lipsticks at the same time has been solved. This achieves independent packaging and sealing of two types of lipsticks, ensuring the quality and performance of the lipsticks.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU IND PARK GUOXING PRECISION MOLDINGPROD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-21
AI Technical Summary
The single-ended, one-piece structure of existing lipstick products cannot accommodate two different types of lipsticks in the same casing, thus failing to meet the independent packaging requirements of multiple lipsticks.
Design a double-ended sealing tube with axially symmetrical protrusions inside the tube connecting two independent storage components. The sealing is achieved by using elastic sealing edges and threaded connections to ensure independent containment and sealing of the two ointments.
It enables the simultaneous containment of two different types of ointments within the same tube, preventing ointment deterioration and ensuring the quality and effectiveness of the ointment.
Smart Images

Figure CN224522601U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cosmetic packaging technology, and in particular to a double-ended sealing tube. Background Technology
[0002] Current lipstick products generally adopt a single-ended, one-piece design, which limits the technical solution to a single receiving cavity and a single dispensing channel. This structure has significant technical limitations: the spatial design of the receiving cavity can only accommodate one type of lipstick, and due to the constraints of the internal mechanical structure, it cannot independently encapsulate two different types of lipsticks (such as base formulations with different hardness and spreadability) within the same casing. Therefore, it is necessary to propose further solutions to address these issues. Utility Model Content
[0003] The purpose of this invention is to provide a double-ended sealing tube to overcome the shortcomings of the existing technology.
[0004] To achieve the above-mentioned utility model objectives, this utility model provides a double-ended sealing tube, which includes: a tube body, a first storage component, and a second storage component; One end of the first storage component is connected to one end of the tube body, and one end of the second storage component is connected to the other end of the tube body; Any storage component includes: a bracket, a plug, and a lid; the bracket includes: a base and a support rod disposed on the base; the base is housed in the tube, the plug is fitted onto the support rod and housed in the base, and the lid is hollow, with one end engaging with the base and defining a sealed space with the plug.
[0005] As an improvement to the double-ended sealing tube of this utility model, the tube body is provided with axially symmetrically arranged protrusions inside, one end of the first storage component is connected to one of the protrusions, and one end of the second storage component is connected to the other protrusion.
[0006] As an improvement to the double-ended sealing tube of this utility model, the base is provided with a hole, and the base cooperates with the protrusion on the side through the hole.
[0007] As an improvement to the double-ended sealing tube of this utility model, the hole extends axially into the support rod on the base.
[0008] As an improvement to the double-ended sealing tube of this utility model, the plug includes: a body and a sealing edge extending from the bottom of the body; the end face of the cap abuts against the sealing edge.
[0009] As an improvement to the double-ended sealing tube of this utility model, the sealing edge is an elastic sealing edge.
[0010] As an improvement to the double-ended sealing tube of this utility model, the base is provided with a connecting part around its perimeter, and the inner side of the connecting part is provided with a thread. The cover is screwed into the base by the thread.
[0011] As an improvement to the double-ended sealing tube of this utility model, the outer side of the cover is also provided with a limiting step that abuts against the end face of the tube body.
[0012] Compared with existing technologies, the advantages of this invention are as follows: Through a rational structural design, this invention achieves the function of simultaneously accommodating two different types of lipsticks within the same tube, solving the technical problem that existing single-ended lipsticks cannot accommodate multiple types of lipsticks at the same time. Simultaneously, the combination of the stopper and cap creates a good sealing space, effectively preventing the lipsticks from deteriorating and ensuring their quality and performance. Attached Figure Description
[0013] 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 recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a plan view of an embodiment of the double-ended sealing tube of this utility model; Figure 2 for Figure 1 3D exploded view of the double-ended sealing tube; Figure 3 for Figure 1 Cross-sectional view of the double-ended sealing pipe. Detailed Implementation
[0015] The present invention will now be described in detail with reference to various embodiments. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.
[0016] like Figures 1 to 3As shown, this embodiment provides a double-ended sealing tube, which includes: a tube body 10, a first storage component 20, and a second storage component 30. One end of the first storage component 20 is connected to one end of the tube body 10, and one end of the second storage component 30 is connected to the other end of the tube body 10. This structural design, with storage components connected to both ends, allows the two ends of the tube body 10 to independently accommodate different types of lipsticks, achieving the integration of two types of lipsticks within the same tube body 10, thus overcoming the structural limitation of existing single-ended lipsticks that can only accommodate one type of lipstick.
[0017] To achieve the connection between the tube body 10, the first storage component 20, and the second storage component 30, the tube body 10, as the main support structure of the double-ended sealing tube, has axially symmetrically arranged protruding pillars inside. These protruding pillars provide a connection base for the installation of the first and second storage components 20 and 30, ensuring that the two storage components can be stably installed at both ends of the tube body 10. Furthermore, the axially symmetrical design makes the force distribution at both ends of the tube body 10 more balanced, improving the overall structural stability.
[0018] The structures of any of the above storage components 20 and 30 are identical. The first storage component 20 will be described in detail below as an example; its structure includes a bracket 21, a plug 22, and a lid 23. Correspondingly, the structure of the second storage component 30 includes a bracket 31, a plug 32, and a lid 33.
[0019] Specifically, the bracket 21 includes a base 211 and a support rod 212 disposed on the base 211. The base 211 is housed within the tube 10, providing support and positioning for the entire storage assembly. The base 211 has a hole through which it engages with a protrusion on its side, thus connecting the bracket 21 to the tube 10. The hole extends axially into the support rod 212 on the base 211. This extension design increases the contact area between the bracket 21 and the protrusion, further improving the stability of the connection and preventing the bracket 21 from shaking or falling off during use. Furthermore, the support rod 212 provides support for the installation of the paste. The paste can be fitted onto the support rod 212, and its shape is kept stable by the support rod 212. The length and diameter of the support rod 212 can be designed according to the actual size of the paste to be accommodated, so as to ensure that the paste can be firmly installed on the bracket 21.
[0020] The plug 22 is fitted onto the bracket 21 and housed in the base 211. Specifically, the plug 22 includes a body 221 and a sealing edge 222 extending from the bottom of the body 221.
[0021] The shape of the main body 221 is adapted to the internal shape of the base 211, ensuring that the plug 22 can be stably housed in the base 211, preventing displacement during use and affecting the sealing performance. Specifically, the main body 221 is fitted onto the base 211 and maintains a tight fit with the support rod 212, thereby providing a certain degree of fixation for the paste and preventing the paste from shifting when the tube 10 shakes.
[0022] The sealing edge 222 is an elastic sealing edge, made of elastic materials such as rubber or silicone. The elastic sealing edge 222 has good elasticity and sealing performance. When the cap 23 is engaged with the base 211, the end face of the cap 23 abuts against the sealing edge 222. Through the elastic deformation of the sealing edge 222, it can tightly fit the end face of the cap 23, thereby achieving a good sealing effect and preventing the balm from coming into contact with the outside air and deteriorating. As described above, the cap 23 can seal the ointment with the stopper 22. Specifically, the cap 23 is hollow, one end of which mates with the base 211 and defines a sealed space with the stopper 22. This sealed space is used to contain the ointment, and the ointment is sealed and protected by the fit between the cap 23 and the stopper 22. Furthermore, to secure the cap 23, the base 211 has connecting portions 213 around its perimeter. The inner side of the connecting portions 213 is threaded, and the cap 23 engages with the base 211 through this threaded connection. This threaded connection offers advantages such as stable connection and easy disassembly, allowing users to easily open the cap 23 to access the ointment. Simultaneously, when closing the cap 23, rotating it ensures a tight fit between the cap 23 and the base 211, guaranteeing a seal. In addition, the outer side of the cover 23 is provided with a limiting step 231 that abuts against the end face of the tube body 10. Thus, when the cover 23 and the base 211 are screwed together to a certain extent, the limiting step 231 abuts against the end face of the tube body 10, which plays a limiting role, preventing excessive rotation of the cover 23 and damage to the threads of the cover 23 or the base 211. At the same time, it can also ensure that the cover 23 and the plug 22 maintain appropriate pressure, ensuring the stability of the sealing performance.
[0023] In the screw-connected embodiment, when the cover 23 and the base 211 are connected by threads, the end face of the cover 23 gradually approaches and abuts against the sealing edge 222 of the plug 22. Since the sealing edge 222 is made of elastic material, under the pressure of the cover 23, the sealing edge 222 undergoes elastic deformation and fits tightly against the end face of the cover 23, thereby forming a sealing barrier between the cover 23 and the plug 22. Meanwhile, the stopper 22 and the base 211 are also tightly fitted to prevent air from entering the sealed space through the gap between the stopper 22 and the base 211. This double-sealing design effectively blocks outside air from entering the sealed space, preventing the ointment from oxidizing, drying, or deteriorating due to contact with air, thus ensuring the quality and effectiveness of the ointment.
[0024] In summary, this invention, through its rational structural design, achieves the function of simultaneously accommodating two different types of lipsticks within the same tube, solving the technical problem that existing single-ended lipsticks cannot accommodate multiple types of lipsticks at the same time. Furthermore, the combination of the stopper and cap creates a good sealing space, effectively preventing the lipsticks from deteriorating and ensuring their quality and performance.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A double-ended sealing tube, characterized in that, The double-ended sealing tube includes: a tube body, a first storage component, and a second storage component; One end of the first storage component is connected to one end of the tube body, and one end of the second storage component is connected to the other end of the tube body; Any storage component includes: a bracket, a plug, and a lid; the bracket includes: a base and a support rod disposed on the base; the base is housed in the tube, the plug is fitted onto the support rod and housed in the base, and the lid is hollow, with one end engaging with the base and defining a sealed space with the plug.
2. The double-ended sealing tube according to claim 1, characterized in that, The tube body has axially symmetrically arranged protrusions inside. One end of the first storage component is connected to one of the protrusions, and one end of the second storage component is connected to the other protrusion.
3. The double-ended sealing tube according to claim 2, characterized in that, The base has a hole, through which it engages with a protruding post on the side.
4. The double-ended sealing tube according to claim 3, characterized in that, The hole extends axially into the support rod on the base.
5. The double-ended sealing tube according to claim 1, characterized in that, The plug includes: a body and a sealing edge extending from the bottom of the body; the end face of the cap abuts against the sealing edge.
6. The double-ended sealing tube according to claim 5, characterized in that, The sealing edge is an elastic sealing edge.
7. The double-ended sealing tube according to claim 1, characterized in that, The base has connecting parts around its perimeter, and the inner side of the connecting parts is threaded. The cover is screwed into the base to achieve a fit.
8. The double-ended sealing tube according to claim 1, characterized in that, The outer side of the cover is also provided with a limiting step that abuts against the end face of the tube.