Lipstick shell pressure sensing anti-collision buffer layer
By introducing a pressure-sensitive anti-collision buffer layer into the lipstick case, and using a pressure-sensitive thin film sensor and STF composite material to disperse the impact force, the structural damage problem of traditional lipstick cases during collisions is solved, achieving a longer service life and greater stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUAIAN JUNDA METAL PRODUCTS CO LTD
- Filing Date
- 2025-03-29
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional lipstick cases cannot effectively cushion impacts when collided, leading to damage to the internal structure and deformation of the lipstick itself, affecting its lifespan and functional stability.
It employs a pressure-sensitive shock-absorbing layer, including an outer layer component, a middle layer component, and a buffer component. It utilizes a pressure-sensitive thin-film sensor and STF composite material to disperse and absorb impact forces, protecting the internal structure.
It effectively disperses impact force, protects the internal structure of the lipstick case, reduces the risk of damage, extends the service life, and ensures the stability of the lipstick during daily use.
Smart Images

Figure CN224219667U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lipstick case technology, specifically a pressure-sensitive anti-collision buffer layer for lipstick cases. Background Technology
[0002] Traditional lipstick cases, when subjected to accidental impacts such as drops from tables or being squeezed by other objects, fail to effectively cushion and disperse the impact. The impact force is often directly transmitted to the lipstick inside, causing the lipstick to break, deform, or the case to dent, severely affecting the normal use and appearance of the lipstick, shortening its lifespan, and lacking internal structural protection. When existing lipstick cases are impacted, the internal spiral components, limiting components, and lifting components may become misaligned or damaged due to external force, affecting the normal lifting function of the lipstick. For example, damage to the spiral component may prevent the lipstick from being smoothly screwed out or retracted, causing great inconvenience to the user. Utility Model Content
[0003] The purpose of this utility model is to solve the problem that traditional lipstick cases are prone to misalignment and damage to components such as spirals, limiters, and lifting mechanisms during collisions due to the lack of internal structural protection. This utility model provides a pressure-sensitive anti-collision buffer layer for lipstick cases.
[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:
[0005] A pressure-sensitive anti-collision buffer layer for a lipstick case includes an outer layer assembly, an intermediate layer assembly penetrating the inner top of the outer layer assembly, a fixed cylinder penetrating the inner side of the intermediate layer assembly, a spiral assembly penetrating the inner side of the fixed cylinder, a limit assembly penetrating and slidably connected to the inner side of the spiral assembly, a lifting assembly penetrating and slidably connected to the bottom inner side of the limit assembly, a buffer assembly disposed between the inner side of the outer layer assembly and the outer side of the intermediate layer assembly, and a cover movably connected to the top outer sides of the outer layer assembly and the intermediate layer assembly. The intermediate layer assembly includes a housing and a buffer hole, the buffer hole being disposed on the side wall of the housing. The buffer assembly includes a pressure-sensitive thin film sensor and an STF composite material, the STF composite material being disposed on the inner surface of the pressure-sensitive thin film sensor.
[0006] Furthermore, the outer component includes a lower shell, an outer shell base, a central gear shaft, and a micro spring. The buffer component is located on the inner wall of the lower shell. If the lipstick is accidentally dropped on the ground, the impact pressure will cause the lower shell to undergo a slight deformation. This deformation is transmitted to the pressure-sensitive thin film sensor, triggering its pressure sensing mechanism.
[0007] Furthermore, the outer shell base is located at the inner bottom axis of the lower shell, the bottom of the central gear shaft is rotatably connected to the top of the outer shell base, and the micro spring is located in the inner bottom layer of the lower shell. The micro spring in the inner bottom layer of the lower shell will also be compressed when it is impacted, further buffering the external force and reducing the vibration amplitude of the entire lipstick case.
[0008] Furthermore, the spiral assembly includes a spiral cavity and a spiral slide. The spiral cavity is connected to the inner side of the fixed cylinder, and the spiral slide is disposed on the inner surface of the spiral cavity. Under the action of the spiral slide, the lifting cylinder of the limiting assembly rises or falls along the spiral trajectory.
[0009] Furthermore, the limiting component includes a lifting cylinder, a limiting channel, and a limiting groove. The outer side of the lifting component penetrates the inner side of the lifting cylinder. The limiting channel and the limiting groove are disposed on the inner side of the lifting cylinder. The limiting channel is disposed at the upper and lower ends of the limiting channel. Under the action of the spiral slide, the lifting cylinder of the limiting component rises or falls along the spiral trajectory.
[0010] Furthermore, the lifting assembly includes a base for holding lipstick and a locking block. The locking block is fixedly connected to the outer wall of the base for holding lipstick. The outer side of the base for holding lipstick penetrates the inner side of the limiting assembly. The locking block is slidably connected to the side wall of the limiting assembly. The base for holding lipstick in the lifting assembly can only slide up and down along the inner side of the limiting assembly, thereby enabling the extension or retraction of the lipstick.
[0011] Furthermore, the pressure-sensitive film sensor is disposed on the inner surface of the outer layer component, and the pressure-sensitive film sensor continuously monitors the external pressure that the lipstick case may be subjected to.
[0012] Compared with the prior art, this utility model provides a pressure-sensitive anti-collision buffer layer for lipstick cases, which has the following beneficial effects:
[0013] This lipstick case features a pressure-sensitive shock-absorbing layer. By incorporating buffer holes in the sidewall of the middle layer, it effectively disperses impact force and reduces localized pressure. The buffer component between the outer and middle layers utilizes a pressure-sensitive thin-film sensor to accurately detect changes in external pressure and react rapidly. The STF composite material remains soft under normal conditions, not affecting usability, but hardens instantly under pressure, efficiently absorbing and dispersing impact force. This provides comprehensive protection for the internal structure of the lipstick case and the lipstick itself, significantly enhancing the lipstick's resistance to impacts during daily use, reducing the risk of damage, and extending its lifespan. Attached Figure Description
[0014] Figure 1 A three-dimensional view of the overall external structure of this utility model is provided.
[0015] Figure 2 A three-dimensional diagram showing the overall external structure of this utility model after removing the cover.
[0016] Figure 3 This is a three-dimensional view of the top structure of the overall internal structure of this utility model;
[0017] Figure 4 This is a top-view 3D view showing the internal structure and layered structure of the entire utility model.
[0018] Figure 5 A three-dimensional diagram showing the internal structure of this practical spiral assembly;
[0019] Figure 6 A three-dimensional diagram showing the positional relationship between the buffer component and the outer component of this utility model;
[0020] Figure 7 For practical purposes Figure 6 Figure A shows an enlarged view of the buffer component structure.
[0021] Figure 8 This is a cross-sectional view showing the internal sandwich structure of the outer layer component of this utility model;
[0022] Figure 9 A three-dimensional diagram illustrates the connection relationship between the lifting component and the limit switch in this utility model.
[0023] Figure 10 This provides a 3D model of the intermediate layer components of this utility.
[0024] In the diagram: 1. Outer layer assembly; 11. Lower half shell; 12. Outer shell base; 13. Central gear shaft; 14. Miniature spring; 2. Middle layer assembly; 21. Shell; 22. Buffer hole; 3. Fixing cylinder; 4. Spiral assembly; 41. Spiral cavity; 42. Spiral slide; 5. Limiting assembly; 51. Lifting cylinder; 52. Limiting channel; 53. Limiting groove; 6. Lifting assembly; 61. Ointment base; 62. Locking block; 7. Buffering assembly; 71. Pressure-sensitive film sensor; 72. STF composite material; 8. Cover. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1:
[0026] like Figures 1-10As shown, a pressure-sensitive anti-collision buffer layer for a lipstick case includes an outer layer component 1, an intermediate layer component 2 penetrating the inner side of the top of the outer layer component 1, a fixing cylinder 3 penetrating the inner side of the intermediate layer component 2, a spiral component 4 penetrating the inner side of the fixing cylinder 3, a limiting component 5 penetrating and slidably connected to the inner side of the spiral component 4, a lifting component 6 penetrating and slidably connected to the bottom of the inner side of the limiting component 5, a buffer component 7 disposed between the inner side of the outer layer component 1 and the outer side of the intermediate layer component 2, and a cover 8 movably connected to the top of the outer side of the outer layer component 1 and the intermediate layer component 2.
[0027] like Figure 6 and Figure 8 As shown, the outer component 1 includes a lower shell 11, an outer shell base 12, a central gear shaft 13, and a micro spring 14. The buffer component 7 is disposed on the inner side wall of the lower shell 11, the outer shell base 12 is disposed at the inner bottom axis of the lower shell 11, the bottom of the central gear shaft 13 is rotatably connected to the top of the outer shell base 12, and the micro spring 14 is disposed in the inner bottom interlayer of the lower shell 11. When the lipstick shell is subjected to external impact or pressure, the external force first acts on the lower shell 11 of the outer component 1. Since the pressure-sensitive film sensor 71 is tightly attached to the inner surface of the lower shell 11, it can quickly sense the pressure change and convert the pressure signal into an electrical signal. If the lipstick is accidentally dropped on the ground, the pressure generated by the impact causes the lower shell 11 to undergo a slight deformation. This deformation is transmitted to the pressure-sensitive film sensor 71, triggering its pressure sensing mechanism.
[0028] like Figure 10 As shown, the intermediate layer assembly 2 includes a housing 21 and a buffer hole 22. The buffer hole 22 is disposed on the side wall of the housing 21. The housing 21 and the buffer hole 22 on the side wall of the intermediate layer assembly 2 also participate in the buffering process.
[0029] like Figure 5 As shown, the spiral assembly 4 includes a spiral cavity 41 and a spiral slide 42. The spiral cavity 41 is connected to the inner side of the fixed cylinder 3, and the spiral slide 42 is disposed on the inner surface of the spiral cavity 41. Rotating the cover 8 drives the central gear shaft 13 of the outer layer assembly 1 to rotate, which will cause the spiral cavity 41 of the spiral assembly 4 to rotate.
[0030] like Figure 9As shown, the limiting component 5 includes a lifting cylinder 51, a limiting channel 52, and a limiting groove 53. The outer side of the lifting component 6 penetrates the inner side of the lifting cylinder 51. The limiting channel 52 and the limiting groove 53 are located on the inner side of the lifting cylinder 51. The limiting channel 52 is located at its upper and lower ends. The lifting component 6 includes a paste-holding base 61 and a locking block 62. The locking block 62 is fixedly connected to the outer wall of the paste-holding base 61. The outer side of the paste-holding base 61 penetrates the inner side of the limiting component 5. The locking block 62 is slidably connected to the side wall of the limiting component 5. Under the action of the spiral slide 42, the lifting cylinder 51 of the limiting component 5 rises or falls along the spiral trajectory. Due to the cooperation between the locking block 62 and the limiting groove 53 of the limiting component 5, the paste-holding base 61 of the lifting component 6 can only slide up and down along the inner side of the limiting component 5. Example 2:
[0031] like Figure 7 As shown, the buffer component 7 includes a pressure-sensitive thin film sensor 71 and an STF composite material 72. The STF composite material 72 is disposed on the inner surface of the pressure-sensitive thin film sensor 71, and the pressure-sensitive thin film sensor 71 is disposed on the inner surface of the outer component 1. The pressure-sensitive thin film sensor 71 continuously monitors the external pressure that the lipstick case may be subjected to, and the STF composite material 72 is ready to play a buffering role when subjected to impact, so as to ensure the safety of users during the use of lipstick.
[0032] Working principle: such as Figures 1-10 As shown, the buffer assembly is in standby mode: the buffer assembly 7 is located on the inner wall of the lower half shell 11 of the outer component 1, wherein the pressure-sensitive film sensor 71 is disposed on the inner surface of the lower half shell 11, and the inner surface is attached with STF composite material 72. At this time, the pressure-sensitive film sensor 71 is in normal monitoring state, and the STF composite material 72 is normally soft and will not affect the normal opening and closing and use of the lipstick case.
[0033] Pressure sensing and collision avoidance process
[0034] Pressure sensing: When the lipstick case is subjected to external impact or pressure, the external force first acts on the lower half shell 11 of the outer component 1. Since the pressure-sensitive film sensor 71 is closely attached to the inner surface of the lower half shell 11, it can quickly sense the pressure change and convert the pressure signal into an electrical signal. If the lipstick is accidentally dropped on the ground, the pressure generated by the impact causes the lower half shell 11 to undergo a slight deformation. This deformation is transmitted to the pressure-sensitive film sensor 71, triggering its pressure sensing mechanism.
[0035] Buffering effect: While sensing pressure, the STF composite material 72 plays a buffering role. As the pressure increases, the STF composite material 72 quickly changes from its normal soft state to a hard state. When the impact force is large, the STF composite material 72 hardens in a very short time, absorbing and dispersing most of the impact force, reducing the damage of external force to the internal structure and lipstick. At the same time, the micro spring 14 in the bottom interlayer inside the lower shell 11 will also be compressed when impacted, further buffering the external force and reducing the vibration amplitude of the entire lipstick shell.
[0036] Protecting the internal structure: The shell 21 of the intermediate layer component 2 and the buffer holes 22 on its sidewalls also participate in the buffering process; the buffer holes 22 provide space for the STF composite material 72 to deform and buffer, which can change the transmission path of the impact force to a certain extent, disperse the pressure, and prevent excessive local pressure; moreover, the entire intermediate layer component 2 closely cooperates with the outer layer component 1, working together with the buffer component 7 to protect the internal structures such as the fixed cylinder 3, spiral component 4, limiting component 5, and lifting component 6, avoiding damage to the internal structure due to impact, thereby protecting the lipstick.
[0037] Structural collaboration during lipstick application
[0038] Rotation and lifting: When the user needs to use the lipstick, the user rotates the cap 8, which drives the central gear shaft 13 of the outer component 1 to rotate, causing the spiral cavity 41 of the spiral component 4 to rotate; at this time, the lifting cylinder 51 of the limiting component 5 rises or falls along the spiral trajectory under the action of the spiral slide 42; due to the cooperation of the locking block 62 and the limiting groove 53 of the limiting component 5, the base 61 of the lifting component 6 can only slide up and down along the inner side of the limiting component 5, thereby realizing the extension or retraction of the lipstick;
[0039] Structural stability: During the entire rotation and lifting process, the structure of the buffer component 7, outer component 1 and middle component 2 remains relatively stable, ensuring the structural integrity of the lipstick case during use. The pressure-sensitive film sensor 71 continuously monitors the external pressure that the lipstick case may be subjected to. The STF composite material 72 is ready to play a buffering role when subjected to impact, ensuring the safety of users during the use of lipstick and preventing damage to the lipstick due to accidental collisions.
Claims
1. A pressure-sensitive shock-absorbing layer for a lipstick case, comprising an outer component (1), characterized in that: The top inner side of the outer layer component (1) is penetrated by the middle layer component (2), the inner side of the middle layer component (2) is penetrated by the fixing cylinder (3), the inner side of the fixing cylinder (3) is penetrated by the spiral component (4), the inner side of the spiral component (4) is penetrated and slidably connected to the limit component (5), the bottom inner side of the limit component (5) is penetrated and slidably connected to the lifting component (6), a buffer component (7) is provided between the inner side of the outer layer component (1) and the outer side of the middle layer component (2), and a cover (8) is movably connected to the top outer side of the outer layer component (1) and the middle layer component (2). The intermediate layer assembly (2) includes a housing (21) and a buffer hole (22), the buffer hole (22) being disposed on the side wall of the housing (21); The buffer assembly (7) includes a pressure-sensitive thin film sensor (71) and an STF composite material (72), wherein the STF composite material (72) is disposed on the inner surface of the pressure-sensitive thin film sensor (71).
2. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 1, characterized in that: The outer component (1) includes a lower half shell (11), an outer shell base (12), a central gear shaft (13) and a miniature spring (14), and the buffer component (7) is disposed on the inner side wall of the lower half shell (11).
3. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 2, characterized in that: The outer shell base (12) is located at the inner bottom axis of the lower shell (11), the bottom of the central gear shaft (13) is rotatably connected to the top of the outer shell base (12), and the micro spring (14) is located in the inner bottom interlayer of the lower shell (11).
4. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 1, characterized in that: The spiral assembly (4) includes a spiral cavity (41) and a spiral slide (42). The spiral cavity (41) is connected to the inner side of the fixed cylinder (3), and the spiral slide (42) is disposed on the inner surface of the spiral cavity (41).
5. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 1, characterized in that: The limiting component (5) includes a lifting cylinder (51), a limiting channel (52) and a limiting groove (53). The outer side of the lifting component (6) penetrates the inner side of the lifting cylinder (51). The limiting channel (52) and the limiting groove (53) are located on the inner side of the lifting cylinder (51). The limiting channel (52) is located at the upper and lower ends of the limiting channel (52).
6. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 1, characterized in that: The lifting assembly (6) includes a paste holding base (61) and a locking block (62). The locking block (62) is fixedly connected to the outer side wall of the paste holding base (61). The outer side of the paste holding base (61) penetrates the inner side of the limiting assembly (5). The locking block (62) is slidably connected to the side wall of the limiting assembly (5).
7. The lipstick case pressure-sensitive anti-collision buffer layer according to claim 1, characterized in that: The pressure-sensitive thin-film sensor (71) is disposed on the inner surface of the outer component (1).