Large-area single key
By using a balance rod to transmit pressing pressure in large-area single buttons and combining sliding grooves and limit wall structures, the problems of pressing pressure uniformity and hand feel in the prior art are solved, and a button design with high reliability and long service life is achieved.
Patent Information
- Application Number
- CN202420900667.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-03-11
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The existing large-area single buttons have shortcomings in achieving the uniform switching function of pressing pressure and ensuring the consistency of the button feel, and there are problems such as misoperation, poor operating feel, high requirements for key clamping, and rail processing.
Using a design including a body and a key cap, at least two balance rods are used to transmit the pressing pressure acting on the key cap to the opposite side through torque, so that the pressing pressure on each part of the key cap can play a switch function for the button switch, and ensure the consistency of the key feel through structures such as sliding grooves and limit walls.
It realizes the uniform pressure switch function of each part of the key cap, ensuring the consistency of the key feel, simple installation, low cost, reliable operation and long service life.
Smart Images
Figure CN222600798U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of key switches, in particular to a large-area single key. Background Art
[0002] As people's aesthetic taste for things continues to improve, they often have higher requirements for the appearance of products in life. Therefore, in industrial design, the button function of the product is often combined with the product shell. This not only makes the overall appearance of the product beautiful, but the larger area of the operation buttons is also conducive to user operation.
[0003] There are currently two methods for implementing large-area single-button buttons on the market. The first method uses a multi-button switch mode, which places two or more button switches at different positions on the bottom of a larger button cap, thereby realizing the switch function of pressing at different positions of the button cap. However, this method has the disadvantages of multiple buttons being turned on by pressing one button, misoperation, poor operation feel, and messy operation sounds. The second method uses a guide rail structure, in which a bracket is designed at the bottom of the button cap, and guide rails are designed around the bracket. The guide rails are closely matched with the guide rail grooves on the base to ensure that when the button cap is pressed, the bracket moves vertically along the guide rail direction, thereby realizing the switch function. This structure has the problems of key jamming, high requirements for guide rail and guide rail groove processing, and inconsistent pressing feel at different positions of the button cap.
[0004] Therefore, it is necessary to provide a large-area single key that can realize the switching function of the key by the pressing force acting on any point on the key cap, ensure the consistency of the key feel of each part of the key cap, and have reliable operation and long service life. Utility Model Content
[0005] In order to overcome the deficiencies of the prior art, the utility model provides a large-area single key.
[0006] The technical solution of the utility model is as follows:
[0007] A large-area single key comprises a body and a key cap, wherein the body is provided with a button switch, and at least two balance bars are provided between the body and the key cap, wherein each balance bar intersects with at least another balance bar, and the balance bars comprise a first bar, wherein both ends of the first bar are respectively provided with second bars extending in the same direction, and an end of the second bar away from the first bar is provided with a third bar extending toward or away from the other second bar, wherein the first bar is rotatably connected to the key cap, and the third bar is slidably connected to the body.
[0008] As a further improvement of the present invention, the main body is provided with sliding grooves having the same number as the third rods, and all the third rods slide in the sliding grooves in a one-to-one correspondence.
[0009] As a further improvement of the utility model, the main body is provided with connecting parts having the same number as the third rods, an extension part is provided at one end of the connecting part away from the main body, and the extension part and the main body form the sliding groove.
[0010] As a further improvement of the utility model, there are two balance poles, namely a first balance pole and a second balance pole. The second end of the first balance pole is arranged at the position of the main body farthest from the first end of the first balance pole, and the second end of the second balance pole is arranged at the position of the main body farthest from the first end of the second balance pole.
[0011] As a further improvement of the utility model, two pairs of limit walls are provided on the main body, each pair of the limit walls are arranged opposite to each other, the second rods of the two first balance rods are located between a pair of the limit walls, the second rods of the two second balance rods are located between another pair of the limit walls, and the second rods correspond to and offset against the limit walls one by one.
[0012] As a further improvement of the utility model, the button cap is provided with a plurality of first fixing parts and a plurality of second fixing parts, the first fixing part is provided with a first water drop hole, the first balance bar is clamped in the first water drop hole, the second fixing part is provided with a second water drop hole, the second balance bar is clamped in the second water drop hole.
[0013] As a further improvement of the utility model, a plurality of first support seats and a plurality of second support seats are provided on the main body, the first support seat is provided with a first support hole for supporting the first balance pole, and the second support seat is provided with a second support hole for supporting the second balance pole.
[0014] As a further improvement of the utility model, the body includes a button seat and a circuit board, the circuit board is arranged on a side of the button seat away from the button cap, the button switch is arranged on the circuit board, and the button seat is provided with a through hole for inserting the button switch.
[0015] As a further improvement of the present invention, a mounting groove is provided on the button seat, an indicator light is provided in the mounting groove, a light-transmitting groove corresponding to the mounting groove is provided on the button cap, both the mounting groove and the light-transmitting groove are provided with wiring openings, a wiring hole is provided on the button seat, and the signal line of the indicator light passes through the wiring opening and the wiring hole in sequence and is electrically connected to the circuit board.
[0016] As a further improvement of the present invention, the button cap is provided with a plurality of limiting members, and the body is provided with limiting holes corresponding to the limiting members.
[0017] According to the utility model of the above scheme, the beneficial effects of the utility model are:
[0018] The utility model provides a large-area single key, which can transmit the pressing force acting on any point on the key cap to the opposite side through the torque of the balance bar, so that the pressing force on various parts of the key cap can play a switching function on the key, ensuring the consistency of the key feel of various parts of the key cap. At the same time, it is simple to install, low in cost, reliable in operation and long in service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the balancing rod of the utility model;
[0021] Figure 3 It is a structural schematic diagram of the key cap of the utility model;
[0022] Figure 4 It is a structural schematic diagram of the first fixing member of the utility model;
[0023] Figure 5 It is a structural schematic diagram of the second fixing member of the utility model;
[0024] Figure 6 It is a structural schematic diagram of the keypad seat of the utility model;
[0025] Figure 7 It is a structural schematic diagram of the key seat, the first balance bar and the second balance bar of the utility model;
[0026] Figure 8 It is a structural schematic diagram of the first support seat of the utility model;
[0027] Fig. 9 It is a structural schematic diagram of the second supporting seat of the utility model.
[0028] In the figure: 1. body; 11. button seat; 111. extension part; 112. limit wall; 113. first support seat; 1131. first support hole; 114. second support seat; 1141. second support hole; 115. through hole; 116. mounting slot; 1161. wiring opening; 117. guide hole; 118. limit hole; 12. circuit board; 121. push button switch; 2. button cap; 21. first fixing piece; 211. first water drop hole; 22. second fixing piece; 221. second water drop hole; 23. light-transmitting slot; 24. guide column; 25. limit piece; 26. observation hole; 3. first balance bar; 31. first bar; 32. second bar; 33. third bar; 4. second balance bar. DETAILED DESCRIPTION
[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.
[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0031] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.
[0032] See also Figure 1 and Figure 2The utility model provides a large-area single key, including a body 1 and a key cap 2. The body 1 is provided with a button switch 121. Preferably, the button switch 121 is an elastic switch. When the button switch 121 is not subjected to external pressure, it automatically recovers through elasticity to play a reset function. At least two balance bars are provided between the body 1 and the key cap 2. Each balance bar intersects with at least another balance bar. The balance bars include a first bar 31. The two ends of the first bar 31 are respectively provided with second bars 32 extending in the same direction. The end of the second bar 32 away from the first bar 31 is provided with a third bar 33 extending toward or away from the other second bar 32. The first bar 3 1. The second rod 32 and the third rod 33 can select suitable shapes according to the use requirements and spatial structure, such as a straight rod or a curved rod. Preferably, the first rod 31, the second rod 32 and the third rod 33 are all straight rods, the first rod 31 is rotatably connected to the key cap 2, and the third rod 33 is slidably connected to the body 1. The utility model can transmit the pressing force acting on any point on the key cap 2 to the opposite side through the torque of the balance bar, so that the pressing force on each part of the key cap 2 can play a switching function on the button switch 121, ensuring the consistency of the key feel of each part of the key cap 2. At the same time, it is simple to install, low cost, reliable in operation and long in service life.
[0033] See also Figure 6 and Figure 7 As an embodiment of the utility model, the body 1 is provided with sliding grooves of the same number as the third rods 33, and all the third rods 33 slide in the sliding grooves one by one. Preferably, the body 1 is provided with connecting parts of the same number as the third rods 33, and an extension part 111 is provided at one end of the connecting part away from the body 1, and the extension part 111 and the body 1 form a sliding groove. When the key cap 2 is pressed, the third rod 33 slides in the sliding groove to compensate for the decrease in height of the balance bar, so that the key cap 2 can smoothly trigger the button switch 121. Similarly, when the pressure on the key cap 2 is removed, the button switch 121 applies an upward thrust to the key cap 2, and the third rod 33 also slides in the opposite direction in the sliding groove to compensate for the increase in height of the balance bar, so that the key cap 2 is separated from the button switch 121.
[0034] As an embodiment of the utility model, there are two balance bars, namely a first balance bar 3 and a second balance bar 4. The second end of the first balance bar 3 is arranged at a position farthest from the first end of the first balance bar 3 on the main body 1, and the second end of the second balance bar 4 is arranged at a position farthest from the first end of the second balance bar 4 on the main body 1. The first balance bar 3 and the second balance bar 4 are as long as possible, which can effectively increase the action area of the first balance bar 3 and the second balance bar 4, so that the utility model only needs two balance bars to achieve the pressing force on various parts of the button cap 2 to play the switching function of the button switch 121, effectively reducing the number of balance bars and reducing the cost of use.
[0035] The placement positions of the first balance bar 3 and the second balance bar 4 can be specifically designed according to the specific shapes of the body 1 and the key cap 2:
[0036] Case 1: If the body 1 and the button cap 2 are circular, the first balance bar 3 and the second balance bar 4 both pass through the center of the circle, and the first balance bar 3 and the second balance bar 4 intersect vertically;
[0037] Case 2: If the body 1 and the button cap 2 are rectangular, the two ends of the first balance bar 3 are respectively arranged at two opposite corners of the rectangle, and the first balance bar 3 passes through the center of the rectangle, and the two ends of the second balance bar 4 are respectively arranged at the other two opposite corners of the rectangle, and the second balance bar 4 also passes through the center of the rectangle, that is, the first balance bar 3 and the second balance bar 4 are compared with the center of the rectangle;
[0038] Case 3: If the body 1 and the button cap 2 are an equilateral triangle, the two ends of the first balance bar 3 are respectively arranged at a corner and the midpoint of a side opposite to the corner, and the two ends of the second balance bar 4 are respectively arranged at another corner and the midpoint of a side opposite to the corner, and the first balance bar 3 and the second balance bar 4 intersect at the center of the equilateral triangle.
[0039] In addition to the above three situations, the main body 1 and the key cap 2 can also adopt other regular polygons or other irregular shapes according to specific usage requirements. The first balance bar 3 and the second balance bar 4 intersect at the central force point of this figure. If only the first balance bar 3 and the second balance bar 4 cannot achieve uniform force on the key cap 2, the number of balance bars can be increased according to needs.
[0040] See also Figure 3-5 As an embodiment of the utility model, a plurality of first fixing members 21 and a plurality of second fixing members 22 are provided on the key cap 2, a first water drop hole 211 is provided on the first fixing member 21, a first balance bar 3 is clamped in the first water drop hole 211, a second water drop hole 221 is provided on the second fixing member 22, and a second balance bar 4 is clamped in the second water drop hole 221. The water drop hole is a water drop-shaped hole having a circular hole and a channel for entering the circular hole, and a spacing of the channels is smaller than a diameter of the circular hole. The first balance bar 3 enters and is clamped in the circular hole of the first water drop hole 211 through the channel, and the second balance bar 4 enters and is clamped in the circular hole of the second water drop hole 221 through the channel, which effectively improves the connection strength between the first balance bar 3, the second balance bar 4 and the key cap 2, avoids unnecessary falling off of the first balance bar 3 and the second balance bar 4, and improves the stability and reliability of the overall work.
[0041] Preferably, the distance between the center of the first water drop hole 211 and the key cap 2 is L1, the distance between the center of the second water drop hole 221 and the key cap 2 is L2, the diameter of the balance bar is L3, L1+L3≤L2, which can facilitate the fixed installation of the first balance bar 3 and the second balance bar 4 and avoid unnecessary interference between the first balance bar 3 and the second balance bar 4.
[0042] See also Figure 6-9 As an embodiment of the utility model, two pairs of limiting walls 112 are provided on the main body 1, and each pair of limiting walls 112 is arranged opposite to each other. The second rods 32 of the two first balance rods 3 are located between a pair of limiting walls 112, and the second rods 32 of the two second balance rods 4 are located between another pair of limiting walls 112. The second rods 32 and the limiting walls 112 are respectively offset against each other. A pair of limiting walls 112 can limit the first balance rod 3 or the second balance rod 4 between the two limiting walls 112, effectively limit the balance rod, prevent the balance rod from being offset in the horizontal direction during the lifting process, and avoid unnecessary interference between the balance rod and other components, thereby causing unnecessary influence on the lifting and lowering of the key cap 2.
[0043] As an embodiment of the utility model, a plurality of first support seats 113 and a plurality of second support seats 114 are provided on the main body 1. The first support seat 113 is provided with a first support hole 1131 for supporting the first balance bar 3, and the second support seat 114 is provided with a second support hole 1141 for supporting the second balance bar 4. Preferably, the first support hole 1131 and the second support hole 1141 are both semicircular. When downward pressure is applied to the key cap 2, the first balance bar 3 and the second balance bar 4 move downward together until the first balance bar 3 falls on the first support hole 1131 and the second balance bar 4 falls on the second support hole 1141. The first support seat 113 and the second support seat 114 limit the key cap 2 to prevent the key cap 2 from continuing to move downward, thereby protecting the button switch 121 and the internal components of the main body 1.
[0044] Preferably, the distance between the center of the first support hole 1131 and the main body 1 is S1, the distance between the center of the second support hole 1141 and the main body 1 is S2, the diameter of the balance bar is L3, S1 ≥ S2 + L3, which can facilitate the movement of the first balance bar 3 and the second balance bar 4 and avoid unnecessary interference after the first balance bar 3 and the second balance bar 4 move to the lower limit position.
[0045] As an embodiment of the utility model, the main body 1 includes a button seat 11 and a circuit board 12. The circuit board 12 is arranged on a side of the button seat 11 away from the button cap 2. The button switch 121 is arranged on the circuit board 12. The button seat 11 is provided with a through hole 115 for inserting the button switch 121. The button seat 11 is used to separate the button cap 2 and the circuit board 12, which can ensure that the button cap 2 only contacts the button switch 121. During the lifting and lowering process of the button cap 2, the moving button cap 2, the first balance bar 3 and the second balance bar 4 will not contact other components on the circuit board 12, so that the circuit board 12 is protected to a certain extent, avoiding unnecessary damage to the circuit board 12, and effectively improving the overall safety and reliability.
[0046] Preferably, the button switch 121 is arranged at the center of the circuit board 12 , and the through hole 115 is arranged at the center of the key seat 11 , so that the button switch 121 is located at the force center of the entire key, which can improve the consistency of the key feel of each part of the key cap 2 .
[0047] As an embodiment of the utility model, a mounting groove 116 is provided on the button seat 11, an indicator light is provided in the mounting groove 116, a light-transmitting groove 23 corresponding to the mounting groove 116 is provided on the button cap 2, and both the mounting groove 116 and the light-transmitting groove 23 are provided with a wiring opening 1161, and a wiring hole is provided on the button seat 11. The signal line of the indicator light passes through the wiring opening 1161 and the wiring hole in sequence, and is electrically connected to the circuit board 12. Since the space inside the mounting groove 116 is limited, the walking path of the signal line is extended, which can facilitate the installation of the indicator light. When working, the circuit board 12 sends a control signal to the indicator light, and the indicator light sends light signals of different colors according to the control signal, and real-time feedback of the current working status of the circuit board 12, such as red, yellow, green, etc., is given. The light signal is emitted to the outside through the light-transmitting groove 23 for observation by the staff. Preferably, the side walls of the mounting groove 116 and the side walls of the light-transmitting groove 23 are inclined and expanded outward, which is conducive to the emission of the light signal and convenient for the staff to observe and monitor the light signal.
[0048] As an embodiment of the utility model, a plurality of limit members 25 are provided on the button cap 2, and a limit hole 118 corresponding to the limit member 25 is provided on the main body 1. Preferably, the limit member 25 is in the shape of a barb, and the limit member 25 passes downward through the limit hole 118. Under the action of the barb structure, the limit member 25 cannot pass upward through the limit hole 118, thereby preventing the button cap 2 from continuing to move upward. When the button is reset, the button cap 2 can be prevented from separating from the button seat 11, thereby realizing the limitation of the button cap 2 and improving the overall stability.
[0049] As an embodiment of the utility model, at least one guide column 24 is provided on the key cap 2, and a guide hole 117 corresponding to the guide column 24 is provided on the main body 1, which can effectively guide the lifting and lowering of the key cap 2 to avoid the key cap 2 from deflecting during the lifting process.
[0050] As an embodiment of the utility model, a plurality of observation holes 26 are provided on the key cap 2. During installation, the first balance bar 3 and the second balance bar 4 are first installed and fixed, and finally the key cap 2 is covered on the key seat 11. The staff can timely grasp the installation status of the first balance bar 3 and the second balance bar 4 through the observation holes 26, which is convenient for the assembly of the key. During use, the staff can also grasp the various conditions inside the key at any time.
[0051] The working status of the buttons are as follows:
[0052] 1. When an abnormality occurs: the indicator light emits red light, the staff applies downward pressure to the key cap 2, the first balance bar 3 and the second balance bar 4 slide in the sliding groove, the key cap 2, the first balance bar 3 and the second balance bar 4 descend, the first balance bar 3 falls on the first support hole 1131, the second balance bar 4 falls on the second support hole 1141, the key cap 2 reaches the lower limit, and the key cap 2 triggers the button switch 121;
[0053] 2. When the abnormality is resolved: the staff releases the pressure applied to the key cap 2, and the button switch 121 applies an upward thrust to the key cap 2 under the action of its own elastic force. The first balance bar 3 and the second balance bar 4 slide in the sliding groove, and the key cap 2, the first balance bar 3 and the second balance bar 4 rise. The key cap 2 contacts the trigger of the button switch 121, the limit member 25 abuts against the button seat 11, the key cap 2 reaches the upper limit position, and the indicator light returns to green.
[0054] In summary, the utility model can transmit the pressing force acting on any point on the key cap 2 to the opposite side through the torque of the balance bar, so that the pressing force on each part of the key cap 2 can play the switch function of the button switch 121, ensuring the consistency of the key feel of each part of the key cap 2, and at the same time, it is simple to install, low in cost, reliable in operation and has a long service life; the first balance bar 3 and the second balance bar 4 are as long as possible, which can effectively increase the action area of the first balance bar 3 and the second balance bar 4, effectively reduce the number of balance bars, and reduce the cost of use; the first water drop hole 211 and the second water drop hole 221 can effectively improve the connection strength between the first balance bar 3, the second balance bar 4 and the key cap 2, avoid unnecessary falling off of the first balance bar 3 and the second balance bar 4, and improve the stability and reliability of the overall work; the limiting wall 112 can effectively limit the balance bar, prevent the balance bar from shifting in the horizontal direction during the lifting process, and avoid unnecessary interference between the balance bar and other components, thereby causing unnecessary influence on the lifting of the key cap 2; the first support seat 11 3 and the second support seat 114 limit the key cap 2 to prevent the key cap 2 from continuing to move downward, thereby protecting the button switch 121 and the internal components of the body 1; the key seat 11 is used to separate the key cap 2 and the circuit board 12, which can ensure that the key cap 2 only contacts the button switch 121. During the lifting and lowering process of the key cap 2, the moving key cap 2, the first balance bar 3 and the second balance bar 4 will not contact other components on the circuit board 12, thereby protecting the circuit board 12 to a certain extent, avoiding unnecessary damage to the circuit board 12, and effectively improving the overall safety and reliability; the indicator light emits light signals of different colors according to the control signal, and real-time feedback of the current working state of the circuit board 12; the limiter 25 not only realizes the limiting of the key cap 2, but also improves the overall stability; the guide column 24 and the guide hole 117 can effectively guide the lifting and lowering of the key cap 2 to avoid the displacement of the key cap 2 during the lifting and lowering process; the observation hole 26 can not only facilitate the assembly of the key, but also enable the staff to grasp the various conditions inside the key at any time.
[0055] It should be emphasized that the above are only preferred embodiments of the present invention and do not constitute any form of limitation to the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A large-area single key, characterized in that: The invention comprises a body (1) and a key cap (2), wherein a button switch (121) is arranged on the body (1), and at least two balancing rods are arranged between the body (1) and the key cap (2), and each balancing rod intersects with at least another balancing rod, and the balancing rod comprises a first rod (31), and second rods (32) extending in the same direction are respectively arranged at two ends of the first rod (31), and a third rod (33) extending toward or away from the other second rod (32) is arranged at one end of the second rod (32) away from the first rod (31), and the first rod (31) is rotatably connected to the key cap (2), and the third rod (33) is slidably connected to the body (1).
2. The large-area single key according to claim 1, characterized in that: The main body (1) is provided with sliding grooves having the same number as the third rods (33), and all the third rods (33) slide in the sliding grooves in a one-to-one correspondence.
3. The large-area single key according to claim 2, characterized in that: The main body (1) is provided with connecting parts having the same number as the third rods (33); an extension part (111) is provided at one end of the connecting part away from the main body (1); and the extension part (111) and the main body (1) form the sliding groove.
4. The large-area single key according to claim 1, characterized in that: There are two balancing poles, namely a first balancing pole (3) and a second balancing pole (4); the second end of the first balancing pole (3) is arranged at a position on the body (1) farthest from the first end of the first balancing pole (3); and the second end of the second balancing pole (4) is arranged at a position on the body (1) farthest from the first end of the second balancing pole (4).
5. The large-area single key according to claim 4, characterized in that: Two pairs of limiting walls (112) are provided on the body (1), and each pair of limiting walls (112) are arranged opposite to each other. The second rods (32) of the two first balancing rods (3) are located between a pair of limiting walls (112), and the second rods (32) of the two second balancing rods (4) are located between another pair of limiting walls (112). The second rods (32) and the limiting walls (112) are in one-to-one correspondence and abut against each other.
6. The large-area single key according to claim 4, characterized in that: The button cap (2) is provided with a plurality of first fixing members (21) and a plurality of second fixing members (22); the first fixing member (21) is provided with a first water drop hole (211); the first balance bar (3) is clamped in the first water drop hole (211); the second fixing member (22) is provided with a second water drop hole (221); the second balance bar (4) is clamped in the second water drop hole (221).
7. The large-area single key according to claim 4, characterized in that: The body (1) is provided with a plurality of first support seats (113) and a plurality of second support seats (114); the first support seat (113) is provided with a first support hole (1131) for supporting the first balance pole (3); and the second support seat (114) is provided with a second support hole (1141) for supporting the second balance pole (4).
8. The large-area single key according to claim 1, characterized in that: The body (1) comprises a button seat (11) and a circuit board (12); the circuit board (12) is arranged on a side of the button seat (11) away from the button cap (2); the button switch (121) is arranged on the circuit board (12); and the button seat (11) is provided with a through hole (115) for inserting the button switch (121).
9. The large-area single key according to claim 8, characterized in that: The button seat (11) is provided with a mounting groove (116), an indicator light is provided in the mounting groove (116), the button cap (2) is provided with a light-transmitting groove (23) corresponding to the mounting groove (116), the mounting groove (116) and the light-transmitting groove (23) are both provided with a wiring opening (1161), the button seat (11) is provided with a wiring hole, and a signal line of the indicator light passes through the wiring opening (1161) and the wiring hole in sequence and is electrically connected to the circuit board (12).
10. The large-area single key according to claim 1, characterized in that: The button cap (2) is provided with a plurality of limiting members (25), and the body (1) is provided with limiting holes (118) corresponding to the limiting members (25).