Reinforced silica gel key

By employing four reset reinforcement devices and a cross-shaped groove interference fit design in the silicone button, the problem of fatigue fracture of the reset spring in traditional silicone buttons is solved, resulting in better reset effect and longer service life.

CN223967143UActive Publication Date: 2026-03-03DONGGUAN CHENRAN TECH CO LTD
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Patent Information

Application Number
CN202520464709.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-17
Publication Date
2026-03-03
Estimated Expiration
2035-03-17

AI Technical Summary

Technical Problem

Traditional silicone buttons are prone to fatigue and breakage of the reset spring or shortening of the reset stroke under prolonged and frequent pressing, resulting in short service life and poor wear resistance, and failing to provide stable limb feedback.

Method used

Four axisymmetrically distributed reset reinforcement devices are connected to the silicone key body, combined with a cross-shaped groove interference fit snap-fit ​​and reset spring design to enhance the reset effect and wear resistance.

Benefits of technology

It improves the reset effect and service life of silicone buttons, ensuring that even if a single reset reinforcement device fails, other devices can still work normally. It is easy to install and disassemble, and extends the service life and wear resistance of the buttons.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of silica gel keys, and discloses a reinforced silica gel key, which comprises a key panel, four reset reinforcing devices and a silica gel key body, the silica gel key body consists of a silica gel key cap and a key column, and the key panel is internally provided with the four reset reinforcing devices which are distributed in an axial symmetry manner. Four reset reinforcing devices are arranged inside the reinforced silica gel key, a silica gel key body is arranged in the center of the four reset reinforcing devices, and a connecting rod is arranged at the bottom of the silica gel key body and is connected with the reset reinforcing devices in a matched mode. And the unique structural design greatly prolongs the service life and improves the wear resistance.
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Description

Technical Field

[0001] This utility model relates to the field of silicone buttons, specifically a reinforced silicone button. Background Technology

[0002] Modern electronic products are facing increasing demands in terms of usage frequency, durability, and user experience. With the widespread adoption of smart devices and high-tech products, consumers have higher expectations for the performance, tactile feel, and durability of buttons, which traditional button materials often cannot meet. Silicone, due to its excellent elasticity, compressive strength, and high-temperature resistance, is widely used in button manufacturing. Compared to traditional plastics, silicone buttons offer a better feel and reduced operating noise, making them particularly suitable for devices requiring frequent interaction, such as smartphones, home appliances, and industrial control panels.

[0003] However, traditional silicone buttons rely on a spring at the bottom for reset when used on a device's input keyboard. If pressed frequently and for extended periods, the internal reset spring will break due to fatigue or the reset stroke will shorten, resulting in no limb feedback or complete malfunction when the user inputs work commands. Furthermore, traditional buttons have poor wear resistance, meaning they have a short lifespan. Therefore, we have proposed a reinforced silicone button. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a reinforced silicone button, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a reinforced silicone keypad, comprising a keypad panel, a reset reinforcement device, and a silicone key body composed of silicone keycaps and keyposts. The keypad panel is provided with four axially symmetrically distributed reset reinforcement devices, and the silicone key body is disposed at the center of the four reset reinforcement devices. The bottom of the silicone key body is provided with a connecting rod that cooperates with the reset reinforcement device.

[0006] Preferably, the bottom end of the silicone key body is a key post, and the key post is connected to the inside of the key panel. The top end of the key post is provided with a silicone keycap, and the top end of the key post corresponding to the top end of the silicone keycap is provided with a cross-shaped slot. The key post and the silicone keycap are press-fitted together through the cross-shaped slot.

[0007] Preferably, the bottom end sidewall of the key post is provided with a limiting outer edge, and the bottom end center of the key post is provided with a column, and the four vertical sidewalls of the column are provided with connecting rods, and the bottom end of the column is provided with a hemispherical electrode contact point.

[0008] Preferably, the top end of the button panel has a button opening, and the inside of the button opening is connected to the limiting outer edge. The inside of the button panel has four fixed inner grooves that are symmetrically distributed along the axis, and the bottom end of the inside of the button panel has an electrode contact point two.

[0009] Preferably, the reset strengthening device consists of two parts: an intermediate rod and a reset spring. The intermediate rod is located at one end of the reset strengthening device corresponding to the key post. The intermediate rod has a first connection hole at the end corresponding to the key post, and the first connection hole is rotatably connected to the connecting rod. The intermediate rod has a second connection hole at the end away from the key post, and the second connection hole is rotatably connected to the reset spring.

[0010] Preferably, the reset spring component consists of three parts: a first connecting plate, a second connecting plate, and three springs distributed at equal intervals. The middle component of the reset spring component is a spring, and both ends of the spring are welded to the first connecting plate and the second connecting plate, respectively. The first connecting plate is fitted to the inner wall of the fixed inner groove. The end of the reset spring component corresponding to the connecting intermediate rod is the second connecting plate. The center of the side of the second connecting plate away from the spring is provided with a connecting rod that is rotatably connected to the second connecting hole.

[0011] Compared with the prior art, this utility model provides a reinforced silicone button, which has the following beneficial effects:

[0012] 1. This reinforced silicone key features four symmetrically distributed reset reinforcement devices connected to the silicone key body. Compared to the traditional single spring reset, the reset effect of the reset reinforcement device has multiple advantages, including better reset effect and better wear resistance. Even if one reset reinforcement device fails, the other three can still perform the reset function normally, resulting in better service life and performance.

[0013] 2. This reinforced silicone key features a cross-shaped groove interference fit between the silicone keycap and the keypost, making it easy to install and remove, and significantly reducing replacement and assembly time. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the reinforced silicone button structure of this utility model;

[0015] Figure 2 This is a cross-sectional view of the reinforced silicone button of this utility model;

[0016] Figure 3 This is a schematic diagram of the top of the key post of this utility model;

[0017] Figure 4 This is a schematic diagram of the bottom of the key post of this utility model;

[0018] Figure 5 This is a schematic diagram of the resetting and strengthening device of this utility model;

[0019] Figure 6 This is a schematic diagram of the intermediate rod of this utility model;

[0020] Figure 7 This is a schematic diagram of the button panel of this utility model.

[0021] In the diagram: 1. Keypad panel; 2. Silicone keycap; 3. Key post; 4. Reset reinforcement device; 5. Connecting cross-shaped slot; 6. Limiting outer edge; 7. Column; 8. Electrode contact point one; 9. Connecting rod; 10. Intermediate rod; 11. Reset spring; 12. Connecting plate one; 13. Spring; 14. Connecting plate two; 15. Connecting hole one; 16. Connecting hole two; 17. Key port; 18. Fixing inner groove; 19. Electrode contact point two. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-7 A reinforced silicone key includes a key panel 1, a reset reinforcement device 4, and a silicone key body composed of a silicone keycap 2 and a key post 3. The key panel 1 has four reset reinforcement devices 4 arranged symmetrically on an axis, and the silicone key body is located at the center of the four reset reinforcement devices 4. The bottom of the silicone key body is provided with a connecting rod 9 that is connected to the reset reinforcement device 4.

[0024] Furthermore, the bottom end of the silicone key body is a keypost 3, and the keypost 3 is connected to the inside of the key panel 1. The top end of the keypost 3 is provided with a silicone keycap 2, and the top end of the keypost 3 corresponding to the top end of the silicone keycap 2 is provided with a cross-shaped slot 5. The keypost 3 and the silicone keycap 2 are connected by interference fit through the cross-shaped slot 5. The cross-shaped slot interference fit is convenient for installation and disassembly, which can greatly improve the replacement and assembly time.

[0025] Furthermore, the bottom end sidewall of the key post 3 is provided with a limiting outer edge 6, and the bottom end center of the key post 3 is provided with a column 7, and the four vertical sidewalls of the column 7 are provided with connecting rods 9. The bottom end of the column 7 is provided with a hemispherical electrode contact point 8. The limiting outer edge 6 effectively ensures that the key post 3 is always inside the key panel 1, and at the same time makes the reset strengthening device 4 always in a compressed state, thereby improving the reset performance of the silicone key.

[0026] Furthermore, the top end of the button panel 1 is provided with a button opening 17, and the inside of the button opening 17 is connected to the limiting outer edge 6. The inside of the button panel 1 is provided with four fixed inner grooves 18 distributed symmetrically on the axis, and the bottom end of the inside of the button panel 1 is provided with an electrode contact point 19.

[0027] Furthermore, the reset reinforcement device 4 consists of two parts: an intermediate rod 10 and a reset spring 11. The intermediate rod 10 is located at one end of the reset reinforcement device 4 corresponding to the key post 3. The intermediate rod 10 has a first connection hole 15 at the end of the intermediate rod 10 corresponding to the key post 3, and the first connection hole 15 is rotatably connected to the connecting rod 9. The intermediate rod 10 has a second connection hole 16 at the end away from the key post 3, and the second connection hole 16 is rotatably connected to the reset spring 11. The reset reinforcement device 4 has a better reset effect and better wear resistance. Even if a single reset reinforcement device 4 fails, the other three can still perform the reset work normally, that is, the service life and performance are better.

[0028] Furthermore, the reset spring component 11 consists of three parts: a first connecting plate 12, a second connecting plate 14, and three springs 13 distributed at equal intervals. The middle component of the reset spring component 11 is the spring 13, and the two ends of the spring 13 are welded to the first connecting plate 12 and the second connecting plate 14 respectively. The first connecting plate 12 is fitted to the inner wall of the fixed inner groove 18. The end of the reset spring component 11 that is connected to the intermediate rod 10 is the second connecting plate 14. The center of the side of the second connecting plate 14 away from the spring 13 is provided with a connecting rod that is rotatably connected to the second connecting hole 16. The three springs 13 distributed at equal intervals in the reset spring component 11 are always in a compressed state, thus effectively ensuring the reset effect of the silicone key body. Moreover, the cooperation of multiple springs 13 effectively ensures the service life of the silicone key and effectively prevents breakage and failure.

[0029] Working principle: Assemble the reinforced silicone key correctly according to the diagram. Specifically, four reset reinforcement devices 4 are placed inside four symmetrically distributed fixed inner grooves 18 inside the key panel 1. The other end of each reset reinforcement device 4 is connected to the key post 3 of the silicone key body. The silicone key body consists of a silicone keycap 2 and a key post 3, which are connected by a cross-shaped clamp fit. The bottom of the key post 3 can slide vertically inside the key panel 1. When the silicone key is used, the user presses the silicone keycap 2 at the top of the silicone key body, causing it to tilt downwards. At this time, the reset reinforcement devices inside the key panel 1... When the key 4 is subjected to horizontal compression, the intermediate rod 10 of the reset reinforcement device 4 compresses the reset spring 11 until the electrode contact point 8 at the bottom of the key post 3 contacts the electrode contact point 19 at the bottom of the key panel 1, thus triggering the command. When the user releases the silicone keycap 2, the compressed reset spring 11 of the reset reinforcement device 4 begins to rebound, causing the silicone key body to move upward, thus completing the reset. The limiting outer edge 6 at the bottom of the key post 3 effectively prevents the key post 3 from detaching from the key panel 1, serving as a limiting function. The rebound reset effect of the four reset reinforcement devices 4 is excellent, and compared with ordinary keys, it has a longer service life and wear resistance.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced silica gel key, comprising a key panel (1), a reset reinforcing device (4), and a silica gel key body composed of a silica gel key cap (2) and a key post (3), characterized in that: The inside of the key panel (1) is provided with four reset reinforcing devices (4) which are distributed in axial symmetry, and the center of the four reset reinforcing devices (4) is provided with a silica gel key body, and the bottom of the silica gel key body is provided with a connecting rod (9) which is connected with the reset reinforcing device (4).

2. The reinforced silicone rubber key of claim 1, wherein: The bottom end of the silica gel key body is a key column (3), and the key column (3) is correspondingly connected inside the key panel (1), the top end of the key column (3) is provided with a silica gel key cap (2), and the top end of the key column (3) is provided with a connecting cross slot (5) corresponding to the silica gel key cap (2), and the key column (3) is connected with the silica gel key cap (2) through the connecting cross slot (5) and the interference clamping.

3. The reinforced silicone rubber key of claim 2, wherein: The sidewall of the bottom end of the key column (3) is provided with a limiting outer edge (6), and the center of the bottom end of the key column (3) is provided with a column body (7), and the four vertical sidewalls of the column body (7) are provided with connecting rods (9), and the bottom end of the column body (7) is provided with a hemispherical electrode contact point one (8).

4. The reinforced silicone rubber key of claim 2, wherein: The top end of the key panel (1) is provided with a key opening (17), and the key opening (17) is correspondingly connected with the limiting outer edge (6) inside, the inside of the key panel (1) is provided with four fixed inner grooves (18) which are distributed in axial symmetry, and the inside of the key panel (1) is provided with an electrode contact point two (19) at the bottom end.

5. The reinforced silicone rubber key of claim 1, wherein: The reset reinforcing device (4) is composed of two parts, which are the intermediate rod (10) and the reset spring part (11), and the one end of the reset reinforcing device (4) connected with the key column (3) is the intermediate rod (10), the one end of the intermediate rod (10) connected with the key column (3) is provided with a connecting hole one (15), and the connecting hole one (15) is connected with the connecting rod (9) through rotation, the other end of the intermediate rod (10) is provided with a connecting hole two (16), and the connecting hole two (16) is connected with the reset spring part (11) through rotation.

6. The reinforced silicone rubber key of claim 5, wherein: The reset spring part (11) is composed of three parts, which are the connecting plate one (12), the connecting plate two (14) and three springs (13) which are distributed at equal intervals, and the middle component of the reset spring part (11) is the spring (13), the two ends of the spring (13) are connected with the connecting plate one (12) and the connecting plate two (14) through welding, and the connecting plate one (12) is correspondingly attached to the inner wall of the fixed inner groove (18), the one end of the reset spring part (11) connected with the intermediate rod (10) is the connecting plate two (14), and the center of the side of the connecting plate two (14) away from the spring (13) is provided with a connecting rod which is connected with the connecting hole two (16) through rotation.