A replaceable liner eye cream tube structure
The design, which combines a replaceable silicone inner tube with a rigid outer tube using magnetic and threaded connections, solves the problems of resource waste and sealing in existing eye cream tubes, enabling convenient replacement and improved sealing, thus enhancing efficiency.
Patent Information
- Application Number
- CN202522176156.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-14
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-10-14
AI Technical Summary
The existing eye cream tubes have a one-piece structure, which leads to resource waste, inconvenient connection and poor sealing, making it difficult to completely dispense the eye cream and resulting in a large amount of residue.
It features a replaceable silicone inner liner and a rigid outer tube. The inner liner can be easily replaced and sealed through magnetic and threaded connections. The combination of a compression spring and a top plate structure makes it easy to dispense eye cream and replace the inner liner.
It enables the reuse of the rigid outer tube, reduces resource waste, ensures sealing and ease of use, avoids eye cream residue, and improves the user experience.
Smart Images

Figure CN224676770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of eye cream tubes, specifically to an eye cream tube structure with a replaceable inner liner. Background Technology
[0002] An eye cream tube is a special container used for storing and dispensing eye cream.
[0003] In existing technologies, eye cream tubes are mostly one-piece structures, with the inner tube and outer tube inseparable. After use, they must be discarded as a whole, resulting in unnecessary waste of resources. The connection structure between the cap and the tube body is not convenient to open and close, and the sealing is poor, which can easily allow external dust and moisture to enter the tube, affecting the quality of the eye cream and even causing leakage. At the same time, it is difficult to fully push out the remaining cream in the tube during the process of taking out the eye cream, resulting in a large amount of residue. In addition, the inner tube is not easy to remove, which brings many inconveniences to the user. Utility Model Content
[0004] The purpose of this invention is to address the above-mentioned defects and provide an eye cream tube structure with a replaceable inner liner. The silicone inner liner added to the inner cavity of the rigid outer tube can be replaced, which solves the technical problem that most existing eye cream tubes are one-piece structures, and the inner liner and outer tube cannot be separated. After use, they need to be discarded as a whole, resulting in unnecessary waste of resources.
[0005] The objective of this utility model is achieved through the following means:
[0006] A replaceable inner liner for an eye cream tube includes a rigid outer tube with a connecting cap at its top. A silicone inner liner is fitted inside the rigid outer tube. A connecting concave plate is threaded to the top of the rigid outer tube. The outlet end of the silicone inner liner extends upward through the bottom of the connecting concave plate. A magnetic lower ring is mounted on the upper surface of the connecting concave plate. A magnetic upper ring is mounted on the bottom of the connecting cap, and the lower and upper rings are magnetically connected. A silicone sealing ring is mounted on the lower part of the inner wall of the connecting cap. A threaded rod is threaded to the center of the bottom of the rigid outer tube. A recessed connecting seat is mounted at the top of the threaded rod. A compression spring is mounted at the center of the inner cavity of the recessed connecting seat. A top plate is mounted at the top of the compression spring, and the top plate corresponds to the bottom of the inner cavity of the silicone inner liner.
[0007] Insert the silicone inner liner into the inner cavity of the rigid outer tube, so that the discharge end of the silicone inner liner passes through the bottom end of the connecting concave plate and extends upward. Then, thread the connecting concave plate to the top of the rigid outer tube and thread the threaded rod to the center of the bottom end of the rigid outer tube. At this time, the concave connecting seat is located below the inner cavity of the rigid outer tube along with the threaded rod. The top plate corresponds to the bottom end of the inner cavity of the silicone inner liner under the support of the compression spring. Through the magnetic attraction of the lower magnetic ring and the upper magnetic ring, the connecting tube cover is closed on the connecting concave plate, and the silicone sealing ring is in contact with the top edge of the connecting concave plate.
[0008] When eye cream is needed, separate the lower magnetic ring and the upper magnetic ring, open the connecting tube cover, and rotate the threaded rod to move the concave connecting seat upward, pushing the top plate to apply pressure to the bottom of the inner cavity of the silicone inner liner, so that the eye cream in the silicone inner liner is discharged from its outlet end. After use, close the connecting tube cover again by magnetic attraction. The silicone sealing ring ensures the airtightness of the tube.
[0009] When the eye cream inside the silicone inner tube is used up, unscrew the connecting plate. The compression spring in the connecting seat will move the top plate upward, causing the top plate to push the silicone inner tube out of the rigid outer tube. Remove the used silicone inner tube and place the new silicone inner tube into the inner cavity of the rigid outer tube according to the assembly steps. Reinstall the connecting plate and other components to complete the replacement of the inner tube.
[0010] Furthermore, annular clamping plates are uniformly installed on the lower front side of the rigid outer tube, and the annular clamping plates are clamped and connected to the threaded rod.
[0011] Annular clamping plates are evenly installed on the lower front side of the rigid outer tube, and the threaded rod is clamped and connected to the annular clamping plates.
[0012] Furthermore, an external connecting shank is installed at the center of the bottom end of the threaded rod, and a connecting cylinder is threadedly connected to the top end of the threaded rod.
[0013] Install an external connecting shank at the center of the bottom end of the threaded rod, and thread the connecting cylinder to the top end of the threaded rod.
[0014] Furthermore, the top end of the connecting cylinder is connected to the bottom end of the recessed connecting seat, and the top end of the top material plate is connected to an extrusion plate.
[0015] Connect the top end of the connecting cylinder to the bottom end of the concave connecting seat, and connect the extrusion plate to the top end of the top plate.
[0016] Furthermore, limit grooves are formed on both sides of the inner wall of the rigid outer tube, and limit blocks are slidably connected to the inner cavity of each limit groove.
[0017] Limiting grooves are opened on both sides of the inner wall of the rigid outer tube, and the limiting blocks are slidably connected in the inner cavity of the limiting grooves.
[0018] Furthermore, the limiting block is connected to both sides of the extrusion plate, and the top of the limiting block is tightly fitted to the bottom of the silicone inner liner.
[0019] Connect the limiting block to both sides of the extrusion plate so that the top of the limiting block fits tightly against the bottom of the silicone inner liner.
[0020] The beneficial effects of this utility model are:
[0021] The silicone inner liner inside the rigid outer tube is replaceable, allowing the rigid outer tube to be reused, reducing resource waste and making it more environmentally friendly. The threaded connection between the top of the rigid outer tube and the connecting concave plate, and the threaded connection between the bottom of the rigid outer tube and the threaded rod, facilitate the disassembly and installation of each component, making it convenient to replace the silicone inner liner or clean the internal structure.
[0022] The magnetic lower ring on the connecting concave plate is magnetically connected to the magnetic upper ring at the bottom of the connecting tube cap, which can quickly open and close the connecting tube cap. At the same time, the silicone sealing ring on the lower part of the inner wall of the connecting tube cap can enhance the connection sealing, effectively prevent external dust and moisture from entering the tube and affecting the quality of the eye cream, and also prevent the eye cream from leaking out.
[0023] The threaded rod, concave connecting seat, compression spring, and top plate at the bottom of the rigid outer tube work together. By rotating the threaded rod, the concave connecting seat, compression spring, and top plate can move up and down. The threaded rod drives the concave connecting seat and top plate to squeeze the bottom of the inner cavity of the silicone inner liner, pushing the eye cream in the silicone inner liner towards the discharge end, making it convenient for users to take out the eye cream and ensuring that the eye cream is taken out more thoroughly, reducing residue and waste. The compression spring in the concave connecting seat drives the top plate to pop the silicone inner liner into the rigid outer tube, making it easy to pick up and put in. Attached Figure Description
[0024] Figure 1 This is a schematic diagram of the overall structure of an eye cream tube with a replaceable inner liner according to the present invention.
[0025] Figure 2 This is a schematic diagram of the separation structure of the rigid outer tube and the connecting cap of an eye cream tube with a replaceable inner liner according to this utility model.
[0026] Figure 3 This is a schematic diagram of the connecting cap and its connection structure for a replaceable inner liner eye cream tube according to the present invention.
[0027] Figure 4 This is a cross-sectional schematic diagram of the internal structure of the rigid outer tube of an eye cream tube with a replaceable inner liner according to the present invention.
[0028] Figure 5 This is a schematic diagram of the extrusion plate and its connection structure for an eye cream tube with a replaceable inner liner according to the present invention.
[0029] Figure 6 This is a cross-sectional view of the concave connecting seat and its connection structure of an eye cream tube structure with a replaceable inner liner according to the present invention.
[0030] In the diagram, 1. Rigid outer tube; 2. Connecting concave plate; 3. Magnetic lower ring; 4. Connecting tube cap; 5. Magnetic upper ring; 6. Silicone sealing ring; 7. Silicone inner liner; 8. Annular clamping plate; 9. Threaded rod; 10. External connecting handle; 11. Limiting groove; 12. Extrusion plate; 13. Limiting block; 14. Concave connecting seat; 15. Compression spring; 16. Top plate; 17. Connecting cylinder. Detailed Implementation
[0031] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0032] In this embodiment, refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The specific implementation of the replaceable inner liner eye cream tube structure includes a rigid outer tube 1, a connecting tube cap 4 at the top of the rigid outer tube 1, a silicone inner liner 7 inside the rigid outer tube 1, a connecting concave plate 2 threadedly connected to the top of the rigid outer tube 1, the discharge end of the silicone inner liner 7 extending upward through the bottom end of the connecting concave plate 2, a magnetic lower ring 3 installed on the upper surface of the connecting concave plate 2, a magnetic upper ring 5 installed at the bottom end of the connecting tube cap 4, the magnetic lower ring 3 and the magnetic upper ring 5 magnetically connected, a silicone sealing ring 6 installed on the lower part of the inner wall of the connecting tube cap 4, a threaded rod 9 threadedly connected to the center of the bottom end of the rigid outer tube 1, a concave connecting seat 14 at the top of the threaded rod 9, a compression spring 15 installed at the center of the inner cavity of the concave connecting seat 14, a top plate 16 at the top of the compression spring 15, and the top plate 16 corresponding to the bottom end of the inner cavity of the silicone inner liner 7.
[0033] The silicone inner liner 7 is placed into the inner cavity of the rigid outer tube 1, so that the discharge end of the silicone inner liner 7 passes through the bottom end of the connecting concave plate 2 and extends upward. Then, the connecting concave plate 2 is threaded to the top end of the rigid outer tube 1, and the threaded rod 9 is threaded to the center of the bottom end of the rigid outer tube 1. At this time, the concave connecting seat 14 is located below the inner cavity of the rigid outer tube 1 along with the threaded rod 9. The top plate 16 is supported by the compression spring 15 and corresponds to the bottom end of the inner cavity of the silicone inner liner 7. Through the magnetic attraction of the lower magnetic ring 3 and the upper magnetic ring 5, the connecting tube cover 4 is closed on the connecting concave plate 2, and the silicone sealing ring 6 is in contact with the top edge of the connecting concave plate 2.
[0034] When eye cream is needed, separate the lower magnetic ring 3 and the upper magnetic ring 5, open the connecting tube cover 4, and drive the concave connecting seat 14 upward by rotating the threaded rod 9. This pushes the top plate 16 to apply pressure to the bottom of the inner cavity of the silicone inner liner 7, causing the eye cream in the silicone inner liner 7 to be discharged from its outlet. After use, close the connecting tube cover 4 again by magnetic attraction. The silicone sealing ring 6 ensures the airtightness of the tube.
[0035] When the eye cream in the silicone inner liner 7 is used up, unscrew the connecting concave plate 2, squeeze the spring 15 in the concave connecting seat 14 to drive the top plate 16 to move upward, so that the top plate 16 drives the silicone inner liner 7 to pop out of the rigid outer tube 1. Take out the used silicone inner liner 7, put the new silicone inner liner 7 into the inner cavity of the rigid outer tube 1 according to the assembly stage steps, and reinstall the connecting concave plate 2 and other components to complete the replacement of the inner liner.
[0036] The connecting tube cap 4 and the connecting concave plate 2 are magnetically connected by the magnetic lower ring 3 and the magnetic upper ring 5. With the sealing effect of the silicone sealing ring 6, the connection is convenient and can effectively prevent the eye cream from being contaminated by the outside world, while also preventing the eye cream from leaking.
[0037] like Figure 1 and Figure 2 As shown, annular clamping plates 8 are evenly installed on the lower front side of the rigid outer tube 1, and the annular clamping plates 8 are clamped and connected to the threaded rod 9. The annular clamping plates 8 are evenly installed on the lower front side of the rigid outer tube 1, and the threaded rod 9 is clamped and connected to the annular clamping plates 8; through the clamping connection between the annular clamping plates 8 and the threaded rod 9, the threaded rod 9 is stably installed on the rigid outer tube 1. The connection method is simple and reliable, and facilitates the subsequent assembly of the structure.
[0038] like Figure 4 and Figure 5 As shown, an external connecting handle 10 is installed at the center of the bottom end of the threaded rod 9, and a connecting sleeve 17 is threadedly connected to the top end of the threaded rod 9. The external connecting handle 10 is installed at the center of the bottom end of the threaded rod 9, and the connecting sleeve 17 is threadedly connected to the top end of the threaded rod 9. The external connecting handle 10 facilitates operation of the threaded rod 9, while the threaded connection between the threaded rod 9 and the connecting sleeve 17 ensures a tight connection and facilitates adjustment of their relative positions, thus improving the flexibility of the structure.
[0039] like Figure 6As shown, the top end of the connecting cylinder 17 is connected to the bottom end of the recessed connecting seat 14, and the top end of the top plate 16 is connected to the extrusion plate 12. Connecting the top end of the connecting cylinder 17 to the bottom end of the recessed connecting seat 14 and connecting the extrusion plate 12 to the top end of the top plate 16 allows for effective force transmission, while the connection between the top plate 16 and the extrusion plate 12 ensures their synergistic effect, making the overall force transmission of the structure smoother. Limiting grooves 11 are formed on both sides of the inner wall of the rigid outer tube 1, and limiting blocks 13 are slidably connected to the inner cavities of the limiting grooves 11. Limiting grooves 11 are respectively opened on both sides of the inner wall of the rigid outer tube 1, and limiting blocks 13 are slidably connected in the inner cavity of the limiting grooves 11. The limiting grooves 11 provide a sliding path for the limiting blocks 13. Through the sliding connection of the limiting blocks 13 in the inner cavity of the limiting grooves 11, the movement direction of the limiting blocks 13 can be restricted to prevent it from deviating and ensure the stability of the movement. The limiting blocks 13 are connected to both sides of the extrusion plate 12, and the top of the limiting blocks 13 is tightly fitted to the bottom of the silicone inner liner 7. Connecting the limiting blocks 13 to both sides of the extrusion plate 12, so that the top of the limiting blocks 13 is tightly fitted to the bottom of the silicone inner liner 7, the connection between the limiting blocks 13 and the extrusion plate 12 realizes the linkage between the two, and the tight fit between the limiting blocks 13 and the bottom of the silicone inner liner 7 can ensure that the silicone inner liner 7 is stably supported when subjected to force, thus improving the collaborative working effect of the structure.
[0040] The usage process of the replaceable inner liner eye cream tube structure in this embodiment is as follows: the connecting tube cap 4 is covered on the connecting concave plate 2 by the magnetic attraction between the magnetic lower ring 3 and the magnetic upper ring 5, and the silicone sealing ring 6 is in contact with the top edge of the connecting concave plate 2.
[0041] When eye cream is needed, separate the lower magnetic ring 3 and the upper magnetic ring 5, open the connecting tube cover 4, and rotate the outer connecting handle 10 to drive the threaded rod 9 to rotate. The threaded rod 9 drives the connecting cylinder 17 and the concave connecting seat 14 to move upward. The concave connecting seat 14 pushes the compression spring 15, the top plate 16 and the extrusion plate 12 to move upward. The extrusion plate 12 drives the limiting block 13 to slide in the limiting groove 11, applying pressure to the bottom of the inner cavity of the silicone inner liner 7, so that the eye cream in the silicone inner liner 7 is discharged from its outlet end. After use, the connecting tube cover 4 is closed again by magnetic attraction. The silicone sealing ring 6 ensures the sealing of the tube.
[0042] When the eye cream in the silicone inner liner 7 is used up, unscrew the connecting concave plate 2. The compression spring 15 drives the top plate 16, the extrusion plate 12 and the limiting block 13 to move upward in the concave connecting seat 14. The top plate 16 causes the silicone inner liner 7 to pop out of the rigid outer tube 1. Take out the used silicone inner liner 7, put the new silicone inner liner 7 into the inner cavity of the rigid outer tube 1 according to the above assembly steps, and reinstall the connecting concave plate 2 and other components to complete the replacement of the inner liner.
[0043] The above description, in conjunction with specific preferred embodiments, provides a further detailed explanation of the present invention. It should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of the present invention, and all such modifications and substitutions should be considered within the scope of protection of the present invention.
Claims
1. A replaceable inner tube structure for an eye cream tube, comprising a rigid outer tube, the top of which is provided with a connecting cap, characterized in that: The rigid outer tube has a silicone inner liner inside. A connecting concave plate is threaded to the top of the rigid outer tube. The discharge end of the silicone inner liner extends upward through the bottom of the connecting concave plate. A magnetic lower ring is installed on the upper surface of the connecting concave plate. A magnetic upper ring is installed at the bottom of the connecting tube cap. The magnetic lower ring and the magnetic upper ring are magnetically connected. A silicone sealing ring is installed on the lower part of the inner wall of the connecting tube cap. A threaded rod is threaded to the center of the bottom of the rigid outer tube. A concave connecting seat is installed at the top of the threaded rod. A compression spring is installed at the center of the inner cavity of the concave connecting seat. A top plate is installed at the top of the compression spring. The top plate is positioned corresponding to the bottom of the inner cavity of the silicone inner liner.
2. The eye cream tube structure with a replaceable inner liner according to claim 1, characterized in that: The rigid outer tube has an annular clamping plate evenly installed on the lower front side, and the annular clamping plate is clamped to the threaded rod.
3. The eye cream tube structure with a replaceable inner liner according to claim 1, characterized in that: An external connecting shank is installed at the center of the bottom end of the threaded rod, and a connecting cylinder is threadedly connected to the top end of the threaded rod.
4. The eye cream tube structure with a replaceable inner liner according to claim 3, characterized in that: The top end of the connecting cylinder is connected to the bottom end of the recessed connecting seat, and the top end of the top material plate is connected to the extrusion plate.
5. The eye cream tube structure with a replaceable inner liner according to claim 4, characterized in that: Limiting grooves are provided on both sides of the inner wall of the rigid outer tube, and limiting blocks are slidably connected to the inner cavity of each limiting groove.
6. The eye cream tube structure with a replaceable inner liner according to claim 5, characterized in that: The limiting block is connected to both sides of the extrusion plate, and the top of the limiting block is tightly fitted to the bottom of the silicone inner liner.