High-temperature-resistant silica gel key

Abstract

The utility model provides a high temperature resistant silica gel button, which relates to the technical field of silica gel buttons, and comprises a connecting main body fixedly arranged on a button panel and a silica gel button main body arranged on the connecting main body, a pressing plate is arranged above the silica gel button main body, and the bottom of the silica gel button main body is fixedly connected with a pressing head. The silica gel key body is provided with a connecting body, the connecting body is provided with a plurality of elastic pieces for applying elastic force to the silica gel key body, two limiting pieces for limiting the two elastic pieces are arranged on the two opposite sides of the silica gel key body respectively, and when the silica gel key body or the pressing head needs to be replaced, firstly, the limiting pieces on the two sides of the silica gel key are pulled, and then the silica gel key body or the pressing head is replaced. According to the silica gel key, the elastic piece is arranged on the connecting body, the two limiting pieces do not limit the elastic piece, at the moment, the silica gel key body and the pressing head fixedly connected to the bottom of the silica gel key body can be taken down from the connecting body, the single silica gel key body can be replaced conveniently, and the maintenance cost of a user is reduced to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of silica gel buttons, in particular to a high-temperature resistant silica gel button. Background Art

[0002] As the name suggests, silicone keys are made of silicone as a raw material. They are a type of silicone product. They are commonly used in electronic calculators, remote controls, telephones, cordless phones, electronic toys, computer keyboards, learning machine keys, cipher keys, and digital product keys.

[0003] Silicone keys are usually made of silicone rubber, which has good high-temperature resistance and can maintain its physical and chemical properties in a wide temperature range. The high-temperature resistance of silicone keys can withstand environments below 200°C and can work for a short period of time at temperatures between 200°C and 250°C. They are relatively stable. Existing silicone keys generally adopt a design that is integrated into the key panel. After long-term use, they may face problems of wear or aging. Users need to replace the entire key panel, which increases the user's maintenance costs.

[0004] Therefore, it is necessary to provide a new high-temperature resistant silicone keypad to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a high-temperature resistant silicone keypad.

[0006] The high-temperature resistant silicone key provided by the present invention includes: a connecting body fixedly arranged on the key panel and a silicone key body arranged on the connecting body, a pressing plate is arranged above the silicone key body, and a pressure head is fixedly connected to the bottom of the silicone key limb, and a plurality of elastic parts that apply elastic force to the silicone key body are provided on the connecting body, and two limiting parts for limiting two of the elastic parts are respectively provided on opposite sides of the silicone key body.

[0007] Preferably, the elastic member includes a first spring, a card plate and a connecting rod, a first mounting groove is opened on the upper side of the connecting body, the bottom side of the first mounting groove is connected to the second mounting groove, the diameter of the second mounting groove is larger than the diameter of the first mounting groove, the bottom end of the first spring is fixedly connected to the bottom side of the inner wall of the second mounting groove, the upper end of the first spring is fixedly connected to the bottom end of the card plate, the outer side wall of the card plate is adapted to the inner wall of the second mounting groove, the bottom end of the connecting rod is fixedly connected to the upper end of the card plate, the side wall of the connecting rod is adapted to the inner wall of the first mounting groove, the upper end of the connecting rod is adapted to the groove opened on the bottom side of the silicone button body, and the limiting member provided on the side wall of the silicone button body limits the connecting rod.

[0008] Preferably, the limiting member includes a pull plate, a limiting rod and a second spring, a first movable groove is opened on the side wall of the silicone button body, one side of the movable groove is connected to the second movable groove, the diameter of the first movable groove is larger than the diameter of the second movable groove, the inner side wall of the first movable groove is fixedly connected to one end of the second spring, the other end of the second spring is fixedly connected to one side of the pull plate, one side of the pull plate is connected to a fixed rod at one end of the limiting rod, the second spring is sleeved on the outer groove of the limiting rod, the outer side wall of the limiting rod is adapted to the inner side wall of the second movable groove, and the end of the limiting rod is inserted into the limiting groove opened on the side wall of the connecting rod.

[0009] Preferably, the outer side wall of the pressure head is adapted to the inner wall of the through hole opened in the middle of the connecting body.

[0010] Preferably, the silicone key body and the pressing plate are compositely formed by hot pressing, a character layer is fixedly provided on the upper end surface of the silicone key, and the pressing plate is transparent.

[0011] Preferably, an annular clamping block is provided on the bottom side of the silicone key body, and the annular clamping block matches the annular clamping groove provided on the upper side of the connecting body.

[0012] Compared with the related art, the high temperature resistant silicone keypad provided by the present invention has the following beneficial effects:

[0013] 1. When the silicone button body or the pressure head needs to be replaced, first pull the limiters on both sides of the silicone button so that the two limiters do not limit the elastic part. At this time, the silicone button body and the pressure head fixedly connected to the bottom of the silicone button body can be removed from the connecting body, which is convenient for replacing a single silicone button body and reduces the user's maintenance cost to a certain extent.

[0014] 2. A pressing plate is set above the main body of the silicone button, and a character layer is fixed on the upper end surface of the silicone button. The pressing plate is transparent. This design prevents the user's fingers or external objects from directly contacting the character layer, thereby reducing the possibility of wear of the character layer due to friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the high-temperature resistant silicone button provided by the utility model;

[0016] Figure 2 This is a schematic diagram of the overall structure of the high-temperature resistant silicone button provided by the utility model;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the high-temperature resistant silicone button provided by the utility model;

[0018] Figure 4 This is a schematic diagram of the bottom side of the silicone keypad body provided by the present invention;

[0019] Figure 5 This is a schematic diagram of the structural disassembly of the connecting body and the elastic member provided by the utility model;

[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the silicone keypad body provided by the present invention;

[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the connecting body provided by the utility model.

[0022] Numbers in the figure: 1. Connecting body; 2. Silicone button body; 3. Press head; 4. Annular block; 5. Annular slot; 6. First spring; 7. Card; 8. Connecting rod; 9. First mounting slot; 10. Second mounting slot; 11. Groove; 12. Pull plate; 13. Limiting rod; 14. Second spring; 15. First movable slot; 16. Second movable slot; 17. Limiting slot; 18. Through hole; 19. Pressing plate; 20. Character layer. DETAILED DESCRIPTION

[0023] To make the technical means, creative features, objectives, and effects of the present invention easier to understand, the present invention will be further described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0024] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0025] Please refer to Figure 1-Figure 7 ,in, Figure 1 This is a schematic diagram of the overall structure of the high-temperature resistant silicone button provided by the utility model; Figure 2 This is a schematic diagram of the overall structure of the high-temperature resistant silicone button provided by the utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the high-temperature resistant silicone button provided by the utility model;

[0026] Figure 4 This is a schematic diagram of the bottom side of the silicone keypad body provided by the present invention; Figure 5 This is a schematic diagram of the structural disassembly of the connecting body and the elastic member provided by the utility model; Figure 6 This is a schematic diagram of the cross-sectional structure of the silicone keypad body provided by the present invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the connecting body provided by the utility model.

[0027] In the specific implementation process, Figure 1-Figure 7 As shown, a high-temperature resistant silicone key comprises a connecting body 1 fixedly arranged on a key panel and a silicone key body 2 arranged on the connecting body 1, a pressing plate 19 is arranged above the silicone key body 2, and a pressing head 3 is fixedly connected to the bottom of the silicone key limb. The connecting body 1 is provided with a plurality of elastic members that apply elastic force to the silicone key body 2, and two limiting members are respectively provided on opposite sides of the silicone key body 2 for limiting the position of two of the elastic members.

[0028] The outer wall of the pressure head 3 is adapted to the inner wall of the through hole 18 opened in the middle of the connecting body 1. An annular clamping block 4 is provided on the bottom side of the silicone key button body 2. The annular clamping block 4 matches the annular clamping groove 5 opened on the upper side of the connecting body 1. The adaptation of the outer wall of the pressure head 3 to the inner wall of the through hole 18 ensures that the silicone key button body 2 can move smoothly and accurately when subjected to force without shaking.

[0029] The elastic member includes a first spring 6, a card plate 7 and a connecting rod 8. A first mounting groove 9 is opened on the upper side of the connecting body 1. The bottom side of the first mounting groove 9 is connected to the second mounting groove 10. The diameter of the second mounting groove 10 is larger than the diameter of the first mounting groove 9. The bottom end of the first spring 6 is fixedly connected to the bottom side of the inner wall of the second mounting groove 10. The upper end of the first spring 6 is fixedly connected to the bottom end of the card plate 7. The outer wall of the card plate 7 is adapted to the inner wall of the second mounting groove 10. The bottom end of the connecting rod 8 is fixedly connected to the upper end of the card plate 7. The side wall of the connecting rod 8 is adapted to the inner wall of the first mounting groove 9. The upper end of the connecting rod 8 is adapted to the groove 11 opened on the bottom side of the silicone key body 2. The limiting member provided on the side wall of the silicone key body 2 limits the connecting rod 8.

[0030] It should be noted that when no external force is applied, the connecting rod 8 is located in the groove 11 inside the silicone key body 2, and the first spring 6 is in a natural state. The first spring 6 applies a certain pre-pressure to the card plate 7. When the user presses the silicone key body 2, the connecting rod 8 located in the groove 11 will be driven to move. The card plate 7 applies pressure to the first spring 6 to compress it, and the pressure head 3 located at the bottom of the silicone key body 2 contacts the switch contacts on the circuit board. When the silicone key body 2 is implemented, the first spring 6 begins to release the elastic potential energy stored before, driving the connecting rod 8 and the silicone key body 2 to reset.

[0031] The limiting component includes a pull plate 12, a limiting rod 13 and a second spring 14. A first movable groove 15 is opened on the side wall of the silicone button body 2. One side of the movable groove is connected to the second movable groove 16. The diameter of the first movable groove 15 is larger than the diameter of the second movable groove 16. The inner side wall of the first movable groove 15 is fixedly connected to one end of the second spring 14. The other end of the second spring 14 is fixedly connected to one side of the pull plate 12. One side of the pull plate 12 is connected to one end of the limiting rod 13. The second spring 14 is sleeved on the outer groove of the limiting rod 13. The outer side wall of the limiting rod 13 is adapted to the inner side wall of the second movable groove 16. The end of the limiting rod 13 is inserted into the limiting groove 17 opened on the side wall of the connecting rod 8.

[0032] It should be noted that when the silicone button body 2 or the pressure head 3 needs to be replaced, first pull the pull plates 12 on both sides of the silicone button. The pull plates 12 drive the second spring 14 to stretch, and the limit rod 13 slides out of the limit groove 17 of the connecting rod 8. At this time, the limit rod 13 does not limit the connecting rod 8. At this time, the silicone button body 2 and the pressure head 3 fixedly connected to the bottom of the silicone button body 2 can be removed from the connecting body 1. When installing the silicone button body 2, first pull the pull plate 12 outward and insert the connecting rod 8 into the groove 11 on the bottom side of the silicone button limb. Release the pull plate 12, and the limit rod 13 is inserted into the limit groove 17 on one side of the connecting rod 8 to complete the installation of the silicone button body 2 and the connecting body 1.

[0033] The silicone button body 2 and the pressing plate 19 are hot-pressed and compositely formed. A character layer 20 is fixedly provided on the upper end surface of the silicone button. The pressing plate 19 is transparent. This design prevents the user's fingers or external objects from directly contacting the character layer 20, thereby reducing the possibility of the character layer 20 being worn due to friction.

[0034] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0035] The above are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A high temperature resistant silicone keypad, characterized in that: include: A connecting body (1) is fixedly arranged on a key panel, and a silicone key body (2) is arranged on the connecting body (1); a pressing plate (19) is arranged above the silicone key body (2); a pressure head (3) is fixedly connected to the bottom of the silicone key limb; a plurality of elastic members for applying elastic force to the silicone key body (2) are arranged on the connecting body (1); and two limiting members for limiting two of the elastic members are respectively arranged on opposite sides of the silicone key body (2).

2. The high temperature resistant silicone keypad according to claim 1, characterized in that: The elastic member comprises a first spring (6), a card plate (7) and a connecting rod (8); a first mounting groove (9) is provided on the upper side of the connecting body (1); a second mounting groove (10) is connected to the bottom side of the first mounting groove (9); the diameter of the second mounting groove (10) is larger than the diameter of the first mounting groove (9); the bottom end of the first spring (6) is fixedly connected to the bottom side of the inner wall of the second mounting groove (10); the upper end of the first spring (6) is fixedly connected to the inner wall of the card plate (7); The bottom end is fixedly connected, the outer side wall of the card plate (7) is matched with the inner wall of the second installation groove (10), the bottom end of the connecting rod (8) is fixedly connected with the upper end of the card plate (7), the side wall of the connecting rod (8) is matched with the inner wall of the first installation groove (9), the upper end of the connecting rod (8) is matched with the groove (11) provided on the bottom side of the silicone key body (2), and the limiting piece provided on the side wall of the silicone key body (2) limits the connecting rod (8).

3. The high temperature resistant silicone keypad according to claim 2, characterized in that: The limiting component includes a pull plate (12), a limiting rod (13) and a second spring (14). A first movable groove (15) is provided on the side wall of the silicone key body (2). One side of the movable groove is connected to the second movable groove (16). The diameter of the first movable groove (15) is larger than the diameter of the second movable groove (16). The inner side wall of the first movable groove (15) is fixedly connected to one end of the second spring (14). The other end of the second spring (14) is fixedly connected to one side of the pull plate (12). One side of the pull plate (12) is fixedly connected to one end of the limiting rod (13). The second spring (14) is sleeved on the outer groove of the limiting rod (13). The outer side wall of the limiting rod (13) is adapted to the inner side wall of the second movable groove (16). The end of the limiting rod (13) is inserted into the limiting groove (17) provided on the side wall of the connecting rod (8).

4. The high temperature resistant silicone keypad according to claim 3, characterized in that: The outer wall of the pressure head (3) is adapted to the inner wall of the through hole (18) provided in the middle of the connecting body (1).

5. The high temperature resistant silicone keypad according to claim 4, characterized in that: The silica gel key body (2) and the pressing plate (19) are compositely formed by hot pressing, a character layer (20) is fixedly provided on the upper end surface of the silica gel key, and the pressing plate (19) is transparent.

6. The high temperature resistant silicone keypad according to claim 5, characterized in that: An annular clamping block (4) is provided on the bottom side of the silica gel key body (2), and the annular clamping block (4) matches the annular clamping groove (5) provided on the upper side of the connecting body (1).

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