Ultrathin key switch

Abstract

The utility model discloses an ultrathin key switch, which comprises a switch base, a base panel and a switch panel which are arranged on the switch base, and a key board hinged on the switch panel, and a trigger rocker and a terminal assembly are arranged in the switch base. The key board is linked with the trigger warping plate through the linkage piece and is used for controlling the connection or disconnection of the terminal assembly; the linkage piece comprises a linkage block and two swing plates hinged to the two sides of the linkage block, the middle of the linkage block is rotationally installed on the base panel, driving protruding parts corresponding to the swing plates are arranged on the inner side of the key board, and the driving protruding parts abut against the edge positions, close to one ends, of the corresponding swing plates. The other end of the swing plate is hinged to the linkage block. The switch is easy to operate, high in switch sensitivity and more stable and firmer in structure.

Description

Technical Field

[0001] The utility model relates to the field of switches, in particular to an ultra-thin key switch. Background Art

[0002] Push button switches are usually installed on walls or cabinets. Pressing one end of the button turns it on, and pressing the other end of the button turns it off. The utility model patent with the patent number CN217588783U previously applied by the applicant discloses an ultra-thin wall switch, which includes a switch base, a base panel and a switch panel arranged on the switch base, and a key panel hinged on the switch panel. A trigger rocker and a pair of wiring terminals are installed in the switch base. The key panel is linked with the trigger rocker through a linkage member. A moving contact is respectively provided at both ends of the trigger rocker. The wiring terminals are symmetrically arranged on both sides of the trigger rocker, and the wiring terminals are provided with static contacts for forming an electrical connection with the corresponding moving contacts when in contact. The linkage member includes a linkage block and two swing plates hinged on both sides of the linkage block. The linkage block is hinged on the base panel, and one end of the swing plate away from the linkage block is hinged on the base panel. The middle part of the trigger rocker is rotatably installed in the switch base, and a force-bearing part is respectively inclinedly arranged at both ends of the trigger rocker. The moving contact is arranged on the corresponding force-bearing part, and the linkage block passes through the base panel and acts on the force-bearing part.

[0003] In this structure, when the keypad is in motion, it acts on the middle of the swing plate, and the supporting point is at the end. The middle of the swing plate is subjected to force to produce swing, and its force effect is poor. The operation requires a large pressing force and the sensitivity is low. Therefore, this structure still has room for improvement. Utility Model Content

[0004] The utility model aims to provide an ultra-thin key switch, which is not only easy to operate but also has high switch sensitivity and a more stable and firm structure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ultra-thin push button switch, comprising a switch base, a base panel and a switch panel arranged on the switch base, and a push button panel hinged on the switch panel, wherein a trigger rocker and a terminal assembly are installed in the switch base, and the push button panel is linked with the trigger rocker through a linkage member to control the conduction or disconnection of the terminal assembly; the linkage member comprises a linkage block and two swing plates hinged on both sides of the linkage block, the middle part of the linkage block is rotatably installed on the base panel, a driving protrusion corresponding to the swing plate is provided on the inner side of the push button panel, and the driving protrusion is abutted against the edge position of the corresponding swing plate close to one end, and the other end of the swing plate is hinged to the linkage block.

[0006] By adopting the above technical solution, the transmission between the key panel and the linkage block belongs to the secondary transmission, and the transmission between the two is carried out by the swing plate. The support point of the swing plate is in the middle, and the driving position (force point) is close to the edge, so the force effect is better, which makes the switch operation not only easier, the switch sensitivity is higher, but also the structure is more stable and firm.

[0007] The utility model is further configured that a first rotating shaft is provided in the middle of the swing plate, at least two groups of supporting structures are provided on the base panel, and a rotating space matching with the first rotating shaft is provided on the supporting structure.

[0008] By adopting the above technical solution, the swing plate can be supported and rotated by the supporting structure.

[0009] The utility model is further configured such that the support structure includes two first support seats and a limiting hook arranged between the two first support seats, the first support seat is provided with a lower support groove, the limiting hook is provided with an upper support groove, and the rotation space is formed between the lower support groove and the upper support groove.

[0010] By adopting the above technical solution, the supporting structure is simple, reliable and has good stability.

[0011] The utility model is further configured such that an inlet and outlet for the first rotating shaft to enter and exit the rotating space is provided between the first supporting seat and the limiting barb, and the width of the inlet and outlet is smaller than the diameter of the first rotating shaft.

[0012] By adopting the above technical solution, the swing plate and the base panel can be quickly disassembled and assembled by only pressing the first rotating shaft on the swing plate into or pulling it out of the inlet and outlet of the supporting structure, which is very convenient to operate.

[0013] The utility model is further configured that the swing plate is further provided with limiting parts whose number is equal to that of the supporting structures, and the two first supporting seats of each supporting structure are respectively arranged on both sides of the corresponding limiting parts.

[0014] By adopting the above technical solution, the swing plate can be limited so that no axial displacement occurs during the swinging process, thereby improving the stability of the structure.

[0015] The utility model is further configured as follows: a plurality of second support seats are provided on the base panel, a second support groove is provided at the upper end of the second support seat, and the first rotating shaft is rotatably arranged in the second support groove.

[0016] By adopting the above technical solution, the supporting points of the swing plate are increased, which not only increases the firmness of the swing plate installation structure, but also makes the second support base structure simpler than the supporting structure.

[0017] The utility model is further configured that a second rotating shaft is provided at one end of the swing plate close to the linkage block, a first opening groove is provided on the linkage block, the second rotating shaft is rotatably arranged in the first opening groove, and the opening width of the first opening groove is smaller than the diameter of the second rotating shaft.

[0018] By adopting the above technical solution, the swing plate and the linkage block can be hinged, the connection structure is simple and reliable, and the disassembly and assembly are very convenient.

[0019] The utility model is further configured that a limiting surface is respectively provided on the swing plate at positions corresponding to both sides of the linkage block.

[0020] By adopting the above technical solution, the swing plate can be limited for a second time, making it less likely to undergo axial displacement, thereby further improving the stability of the structure.

[0021] The utility model is further configured that an elastic clamping block for pressing the edge of the switch base against the bottom of the switch panel is provided at the edge of the switch panel, and an elastic barb for restricting the switch panel to the switch base is provided on the base panel.

[0022] By adopting the above technical solution, the switch panel and the base panel can be locked and installed, which is not only convenient for disassembly and assembly, but also has a firm and reliable connection structure.

[0023] The utility model is further configured as follows: a third rotating shaft is provided on the switch panel, a second opening groove is provided on the key panel, the third rotating shaft is rotatably arranged in the second opening groove, and the opening width of the second opening groove is smaller than the diameter of the third rotating shaft; a guide plate is also provided on the key panel, and a guide groove matching the guide plate is provided on the switch panel.

[0024] By adopting the above technical solution, the keypad and the switch panel can be installed, which is not only convenient for assembly and disassembly but also has good structural stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A cross-sectional view of the utility model as a whole;

[0026] Figure 2 This is a schematic diagram of the front structure of the utility model after the keypad is removed;

[0027] Figure 3 This is a schematic diagram of the back structure of the utility model after the keypad is removed;

[0028] Figure 4 This is a schematic diagram of the structure of the base panel of the utility model;

[0029] Figure 5 It is a structural schematic diagram of the swing plate of the utility model;

[0030] Figure 6 It is a structural schematic diagram of the keypad of the utility model.

[0031] In the figure: 1. switch base; 2. base panel; 3. switch panel; 4. keypad; 5. trigger rocker; 6. terminal assembly; 7. linkage block; 8. swing plate; 9. driving convex part; 10. first rotating shaft; 11. supporting structure; 12. rotating space; 13. first supporting seat; 14. limiting barb; 15. lower supporting groove; 16. upper supporting groove; 17. inlet and outlet; 18. second supporting seat; 19. second supporting groove; 20. second rotating shaft; 21. first opening groove; 22. limiting surface; 23. elastic block; 24. elastic barb; 25. third rotating shaft; 26. second opening groove; 27. guide plate; 28. guide groove; 29. ​​limiting part. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] Example: As attached Figures 1 to 6 The ultra-thin key switch shown in the figure, component 6, the key plate 4 is linked with the trigger rocker plate 5 through a linkage member to control the conduction or disconnection of the terminal component 6; the linkage member includes a linkage block 7 and two swing plates 8 hinged on both sides of the linkage block 7, the middle part of the linkage block 7 is rotatably mounted on the base panel 2, the inner side of the key plate 4 is provided with a driving protrusion 9 corresponding to the swing plate 8, the key plate 4 and the driving protrusion 9 are an integrated structure, and the driving protrusion 9 is against the edge position of the corresponding swing plate 8 near one end, the other end of the swing plate 8 is hinged with the linkage block 7, and a reinforcing rib is provided on the swing plate 8. The transmission between the key plate 4 and the linkage block 7 belongs to the secondary transmission, and the swing plate 8 is used for transmission between the two. The support point of the swing plate 8 is in the middle, and the driving position (stress point) is close to the edge, so the force effect is better, which makes the switch operation not only easier, but also more sensitive, and the structure is more stable and firm.

[0034] As attached Figure 2 , 45, a first rotating shaft 10 is provided in the middle of the swing plate 8, and at least two groups of supporting structures 11 are provided on the base panel 2. In this embodiment, a single swing plate 8 corresponds to two groups of supporting structures 11, and the supporting structure 11 is integrally arranged on the base panel 2. A rotating space 12 matching the first rotating shaft 10 is provided on the supporting structure 11. The swing plate 8 can be supported and supported for rotation by the supporting structure 11.

[0035] As attached Figure 2 , 4 As shown, the support structure 11 includes two first support seats 13 and a limit hook 14 disposed between the two first support seats 13, the first support seats 13 are provided with a lower support groove 15, the limit hook 14 is provided with an upper support groove 16, and the rotation space 12 is formed between the lower support groove 15 and the upper support groove 16. The support structure 11 is simple, reliable, and has good stability.

[0036] As attached Figure 4 As shown, an inlet and outlet 17 for the first rotating shaft 10 to enter and exit the rotating space 12 is provided between the first supporting seat 13 and the limiting barb 14, and the width of the inlet and outlet 17 is smaller than the diameter of the first rotating shaft 10. The swing plate 8 and the base panel 2 can be quickly disassembled and assembled by simply pressing the first rotating shaft 10 on the swing plate 8 into or pulling it out of the inlet and outlet 17 of the supporting structure 11, which is very convenient to operate.

[0037] As attached Figure 2 , 4 As shown in Figures 5 and 6, the swing plate 8 is also provided with a number of limiting parts 29 equal to the number of the supporting structures 11, and the two first supporting seats 13 of each supporting structure 11 are respectively arranged on both sides of the corresponding limiting parts 29. This design can limit the swing plate 8 so that it will not undergo axial displacement during the swinging process, thereby improving the stability of the structure.

[0038] As attached Figure 4 and attached Figure 5 As shown, the base panel 2 is provided with a plurality of second support seats 18, the upper ends of the second support seats 18 are provided with second support grooves 19, and the first rotating shaft 10 is rotatably arranged in the second support grooves 19. Increasing the support points of the swing plate 8 can not only increase the firmness of the installation structure of the swing plate 8, but also the structure of the second support seat 18 is simpler than the support structure 11.

[0039] As attached Figure 2As shown, the swing plate 8 is provided with a second shaft 20 at one end close to the linkage block 7, and the linkage block 7 is provided with a first opening slot 21, the second shaft 20 is rotatably arranged in the first opening slot 21, and the opening width of the first opening slot 21 is smaller than the diameter of the second shaft 20, that is, the first opening slot 21 is approximately C-shaped. This design can realize the hinge connection between the swing plate 8 and the linkage block 7, the connection structure is simple and reliable, and the disassembly and assembly are very convenient.

[0040] As attached Figure 2 As shown, a limiting surface 22 is respectively provided on the swing plate 8 at positions corresponding to both sides of the linkage block 7. This design can perform secondary limiting on the swing plate 8, making it less likely to cause axial displacement, and further improving the stability of the structure.

[0041] As attached Figures 2 to 4 As shown, the edge of the switch panel 3 is provided with an elastic block 23 for pressing the edge of the switch base 1 against the bottom of the switch panel 3, the cross section of the elastic block 23 is a right triangle or a right trapezoid, and the base panel 2 is provided with an elastic barb 24 for restricting the switch panel 3 on the switch base 1. This design can realize the locking installation of the switch panel 3 and the base panel 2, which is not only convenient for disassembly and assembly, but also has a firm and reliable connection structure.

[0042] As attached Figure 2 , 6 As shown, the switch panel 3 is provided with a third rotating shaft 25, the key panel 4 is provided with a second opening slot 26, the third rotating shaft 25 is rotatably arranged in the second opening slot 26, and the opening width of the second opening slot 26 is smaller than the diameter of the third rotating shaft 25, that is, the second opening slot 26 is approximately C-shaped; the key panel 4 is also provided with a guide plate 27, and the switch panel 3 is provided with a guide slot 28 matched with the guide plate 27. This design can realize the installation of the key panel 4 and the switch panel 3, which is not only convenient for disassembly and assembly, but also has good structural stability.

Claims

1. An ultra-thin key switch, comprising a switch base (1), a base panel (2) and a switch panel (3) arranged on the switch base (1), and a key panel (4) hinged on the switch panel (3), wherein a trigger rocker (5) and a terminal assembly (6) are installed in the switch base (1), and the key panel (4) is linked with the trigger rocker (5) through a linkage member to control the conduction or disconnection of the terminal assembly (6); characterized in that: The linkage member comprises a linkage block (7) and two swing plates (8) hinged on both sides of the linkage block (7); the middle part of the linkage block (7) is rotatably mounted on the base panel (2); a driving protrusion (9) corresponding to the swing plate (8) is provided on the inner side of the key plate (4); the driving protrusion (9) abuts against an edge position of the corresponding swing plate (8) near one end; and the other end of the swing plate (8) is hinged to the linkage block (7).

2. The ultra-thin key switch according to claim 1, characterized in that: A first rotating shaft (10) is provided in the middle of the swing plate (8), at least two groups of supporting structures (11) are provided on the base panel (2), and a rotating space (12) matching with the first rotating shaft (10) is provided on the supporting structure (11).

3. The ultra-thin key switch according to claim 2, characterized in that: The support structure (11) comprises two first support seats (13) and a limiting hook (14) arranged between the two first support seats (13); the first support seat (13) is provided with a lower support groove (15); the limiting hook (14) is provided with an upper support groove (16); and the rotation space (12) is formed between the lower support groove (15) and the upper support groove (16).

4. The ultra-thin key switch according to claim 3, characterized in that: An inlet and outlet (17) for the first rotating shaft (10) to enter and exit the rotating space (12) is provided between the first supporting seat (13) and the limiting barb (14), and the width of the inlet and outlet (17) is smaller than the diameter of the first rotating shaft (10).

5. The ultra-thin key switch according to claim 3, characterized in that: The swing plate (8) is also provided with limiting portions (29) whose number is equal to that of the supporting structures (11), and the two first supporting seats (13) of each supporting structure (11) are respectively arranged on both sides of the corresponding limiting portions (29).

6. The ultra-thin key switch according to claim 3, characterized in that: A plurality of second support seats (18) are provided on the base panel (2), a second support groove (19) is provided at the upper end of the second support seat (18), and the first rotating shaft (10) is rotatably disposed in the second support groove (19).

7. The ultra-thin key switch according to claim 1, characterized in that: A second rotating shaft (20) is provided at one end of the swing plate (8) close to the linkage block (7); a first opening slot (21) is provided on the linkage block (7); the second rotating shaft (20) is rotatably arranged in the first opening slot (21); and the opening width of the first opening slot (21) is smaller than the diameter of the second rotating shaft (20).

8. The ultra-thin key switch according to claim 7, characterized in that: A limiting surface (22) is respectively provided on the swing plate (8) at positions corresponding to both sides of the linkage block (7).

9. The ultra-thin key switch according to claim 1, characterized in that: An elastic clamping block (23) for pressing the edge of the switch base (1) against the bottom of the switch panel (3) is provided at the edge of the switch panel (3), and an elastic barb (24) for restricting the switch panel (3) on the switch base (1) is provided on the base panel (2).

10. The ultra-thin key switch according to claim 9, characterized in that: The switch panel (3) is provided with a third rotating shaft (25), the key plate (4) is provided with a second opening groove (26), the third rotating shaft (25) is rotatably arranged in the second opening groove (26), and the opening width of the second opening groove (26) is smaller than the diameter of the third rotating shaft (25); the key plate (4) is also provided with a guide plate (27), and the switch panel (3) is provided with a guide groove (28) matched with the guide plate (27).

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