Piano key structure

Abstract

The utility model relates to the technical field of piano keys, and provides a piano key structure which comprises a base, a first key assembly, a second key assembly, a third key assembly and a silica gel key, the first key assembly comprises a first connecting piece and a first swing arm connected to the first connecting piece at an interval, and the first swing arm is connected with a first key; the second key assembly comprises a second connecting piece and a second swing arm connected to the second connecting piece at an interval, and the second swing arm is connected with a second key; the third key assembly comprises a third connecting piece and a third swing arm connected to the third connecting piece at an interval, and the third swing arm is connected with a third key; the first connecting piece, the second connecting piece and the third connecting piece are sequentially and longitudinally stacked and connected to the base, the first key, the second key and the third key are transversely arranged and arranged in a staggered mode, and the silica gel keys are arranged below the first key, the second key and the third key in a one-to-one correspondence mode. On the basis, the keys can be more stable, and the playing hand feeling and attractiveness are guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of piano keys, in particular to a piano key structure. BACKGROUND

[0002] In some applications, the design of electronic piano keys usually adopts the way of independent assembly of single keys. Each key is fixed by inserting the shaft at the bottom of the key into an open shaft support slot, which allows the key to rotate around the shaft when subjected to external force, simulating the movement of traditional mechanical piano keys. In order to enhance the reset ability of the key after pressing, a spring is usually installed inside or at the bottom of the key to provide the necessary elastic support.

[0003] However, with the open shaft support slot structure, the key shaft is easy to fall out of the support slot due to long-term use or improper operation, resulting in loose or non-working keys. In addition, the left and right swing positioning ability of this structure is weak, and when pressing the key, the key may produce unnecessary shaking, which affects the normal pressing and resetting process of the key, and also affects the playing feel and gap aesthetics.

[0004] Therefore, the present application studies a piano key structure to make the key more stable and ensure the playing feel and aesthetics. CONTENT OF THE INVENTION

[0005] In order to make the key more stable and ensure the playing feel and aesthetics, the present application provides a piano key structure.

[0006] The piano key structure provided by the present application adopts the following technical scheme:

[0007] A piano key structure, comprising a base, a first key assembly, a second key assembly, a third key assembly and a silica gel key, the first key assembly comprising a first connecting piece and a first swing arm connected to the first connecting piece, the first swing arm being connected to a first key; the second key assembly comprising a second connecting piece and a second swing arm connected to the second connecting piece, the second swing arm being connected to a second key; the third key assembly comprising a third connecting piece and a third swing arm connected to the third connecting piece, the third swing arm being connected to a third key; the first connecting piece, the second connecting piece and the third connecting piece are stacked longitudinally and connected to the base, the first key, the second key and the third key are arranged horizontally and staggered with each other, and the silica gel key is arranged one by one under the first key, the second key and the third key.

[0008] By adopting the above technical solution, the corresponding piano keys are connected to form various components through the first connector, the second connector and the third connector, making the piano keys more integrated. The elasticity of each piano key is provided by the corresponding swing arm of each piano key and the silicone button below. Since the swing arms of the same group of piano keys are connected through the same connector, the amplitude of the left and right swing of the piano keys is greatly reduced, ensuring the stability of the piano keys, thereby ensuring the playing feel and aesthetics.

[0009] Optionally, the first connector, the second connector, and the third connector each have a boss on one side and a groove on the other side; during installation, the boss of the first connector is inserted into and abuts against the groove of the second connector, and the boss of the second connector is inserted into and abuts against the groove of the third connector.

[0010] By adopting the above technical solution, the connection between the three connectors is made more stable through the limiting of the boss and the groove, so that the piano keys can also be more stable when in use.

[0011] Optionally, a positioning cylinder is connected to the boss of the first connector, a positioning hole corresponding to the positioning cylinder is opened on the boss of the second connector, and a positioning post corresponding to the positioning hole is connected in the groove of the third connector; during installation, the positioning cylinder extends out of the positioning hole and the positioning post extends into the positioning cylinder.

[0012] By adopting the above technical solution, the positioning of the positioning cylinder and the positioning column can limit and fix the connection position of the three connecting parts, so that the connection between the three connecting parts can be more stable.

[0013] Optionally, at least two positioning cylinders are spaced apart along the length of the first connector, and the positioning holes and positioning posts are arranged in a one-to-one correspondence with the positioning cylinders.

[0014] Optionally, the first key, the second key, and the third key all have a pressing part, and a first wool felt is provided on the base. When the pressing part is pressed, the pressing part abuts against the first wool felt.

[0015] By adopting the above technical solution, when the first key, the second key, or the third key is pressed, the pressing part abuts against the first wool felt, thereby silencing the collision sound between the pressing part and the base.

[0016] Optionally, it also includes a key support, which is mounted on the base. The key support includes a limiting part, and a second wool felt is provided below the limiting part. When the pressing part is not pressed, the pressing part abuts against the second wool felt.

[0017] By adopting the above technical solution, when the piano key is pressed and lifted, the pressing part touches and abuts against the second wool felt, thus silencing the collision sound between the pressing part and the piano key support.

[0018] Optionally, it also includes a PCB board, one side of which is supported on and connected to the piano key bracket, and the other side is supported on and connected to the base.

[0019] Optionally, the silicone button has conductive carbon particles distributed on its contact points, which make contact with the gold fingers of the PCB board to conduct electricity and send signals.

[0020] By adopting the above technical solution, the conductive carbon particles distributed on the silicone button contact the gold fingers on the PCB board to make them conductive, and conduct signals to the motherboard, which then causes the speaker to emit the specified sound.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] 1. The corresponding piano keys are connected to form various components through the first connector, the second connector and the third connector, making the piano keys more integrated. The elasticity of each piano key is provided by the corresponding swing arm of each piano key and the silicone button below. Since the swing arms of the same group of piano keys are connected through the same connector, the left and right swing amplitude of the piano keys is greatly reduced, ensuring the stability of the piano keys, thereby ensuring the playing feel and aesthetics.

[0023] 2. The limiting effect of the boss and the groove makes the connection between the three connecting parts more stable, thus making the piano keys more stable during use;

[0024] 3. The positioning of the positioning cylinder and the positioning column limits and fixes the connection position of the three connecting parts, so that the connection between the three connecting parts can be more stable. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0026] In the diagram:

[0027] Figure 1 This is an exploded view of the piano key structure according to an embodiment of this application;

[0028] Figure 2This is a cross-sectional schematic diagram of the first connector, the second connector, and the third connector in the piano key structure of this application embodiment.

[0029] Figure 3 This is a schematic diagram of the piano key structure in the embodiment of this application, showing the cooperation between the key support and the base.

[0030] Figure 4 This is a cross-sectional schematic diagram of the piano key structure in an embodiment of this application, showing the cooperation between the key support and the base.

[0031] Figure 5 This is a schematic diagram of the piano key structure according to an embodiment of this application.

[0032] Reference numerals: 1. Base; 2. First button assembly; 21. First connector; 22. First swing arm; 23. First key; 3. Second button assembly; 31. Second connector; 32. Second swing arm; 33. Second key; 4. Third button assembly; 41. Third connector; 42. Third swing arm; 43. Third key; 5. Silicone button; 6. Boss; 7. Groove; 8. Positioning cylinder; 9. Positioning hole; 10. Positioning post; 11. Pressing part; 12. First felt; 13. Mounting groove; 14. Key bracket; 15. Limiting part; 16. Second felt; 17. PCB board. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.

[0034] This application discloses a piano key structure. (Refer to...) Figure 1 The piano key structure includes a base 1, a first key assembly 2, a second key assembly 3, a third key assembly 4, and silicone keys 5.

[0035] The first button assembly 2 includes a first connector 21 and a first swing arm 22 spaced apart from the first connector 21, with a first key 23 connected to the first swing arm 22; the second button assembly 3 includes a second connector 31 and a second swing arm 32 spaced apart from the second connector 31, with a second key 33 connected to the second swing arm 32; the third button assembly 4 includes a third connector 41 and a third swing arm 42 spaced apart from the third connector 41, with a third key 43 connected to the third swing arm 42; the first swing arm 22, the second swing arm 32, and the third swing arm 42 are all elastic elements, realizing the pressing and resetting of the corresponding keys.

[0036] The first connecting piece 21, the second connecting piece 31, and the third connecting piece 41 are stacked vertically and connected to the base 1. That is, the first connecting piece 21, the second connecting piece 31, and the third connecting piece 41 are interconnected through the vertical stacking of the base 1, forming a stable connection structure between the keys, making them less prone to wobbling, more stable, and with consistent spacing between the keys, ensuring both playing feel and aesthetics. The first key 23, the second key 33, and the third key 43 are arranged horizontally and staggered, in conjunction with... Figure 5 This embodiment features four first piano keys 23, all white keys, corresponding to do, mi, sol, and si respectively; three second piano keys 33, all white keys, corresponding to re, fa, and la respectively; and five third piano keys 43, all black keys. The horizontally arranged first piano keys 23 and second piano keys 33 correspond to the sequence do, re, mi, fa, sol, la, and si, with the black keys located between adjacent first piano keys 23 and second piano keys 33, similar to existing technology. Silicone buttons 5 are correspondingly positioned on the base 1 below the first piano keys 23, second piano keys 33, and third piano keys 43, providing additional rebound force for better key reset.

[0037] Reference Figure 2 In some embodiments, the first connector 21, the second connector 31, and the third connector 41 are all integrally provided with a boss 6 on one side and a groove 7 on the other side. During installation, the boss 6 of the first connector 21 is inserted into and abuts against the groove 7 of the second connector 31, and the boss 6 of the second connector 31 is inserted into and abuts against the groove 7 of the third connector 41. The grooves 7 limit and abut against each other, making the connection more stable and better ensuring the playing feel.

[0038] In some embodiments, a positioning cylinder 8 is connected to the boss 6 of the first connector 21, a positioning hole 9 corresponding to the positioning cylinder 8 is opened on the boss 6 of the second connector 31, and a positioning post 10 corresponding to the positioning hole 9 is connected to the groove 7 of the third connector 41. During installation, the positioning cylinder 8 extends out of the positioning hole 9 and the positioning post 10 extends into the positioning cylinder 8. Through the cooperation of the positioning post 10 and the positioning cylinder 8, the first connector 21, the second connector 31, and the third connector 41 are positioned and installed, which plays a role in limiting and stabilizing after installation, making the connection more stable.

[0039] In some embodiments, at least two positioning cylinders 8 are spaced apart along the length direction of the first connecting member 21, to cooperate with each other. Figure 1 In this embodiment, one positioning cylinder 8 is provided on each side along the length of the first connecting member 21, and the positioning holes 9 and positioning posts 10 are provided one-to-one with the positioning cylinder 8. This enables better positioning and fixing.

[0040] Reference Figure 3 andFigure 4 In some embodiments, the first key 23, the second key 33, and the third key 43 each have a pressing part 11. A first wool felt 12 is provided on the base 1, positioned diagonally below the pressing part 11. That is, when the pressing part 11 is pressed, it will tilt and displace due to the movement of the key. In this embodiment, the base 1 also has a mounting groove 13, and the first wool felt 12 is adhered to the mounting groove 13. When the pressing part 11 is pressed, it abuts against the first wool felt 12, thereby silencing the collision sound between the pressing part 11 and the base 1.

[0041] In some embodiments, the piano key structure further includes a key support 14, which is mounted on the base 1. In this embodiment, both ends of the key support 14 are screwed to the abutment, and the cross-section of the key support 14 is a "Z" shape. The key support 14 includes a limiting part 15, which is one end of the "Z" shape. A second wool felt 16 is adhered to the lower part of the limiting part 15. When the pressing part 11 is not pressed, the pressing part 11 abuts against the second wool felt 16. When the key is pressed and the key returns to its original position, a collision occurs between the pressing part 11 and the key support 14. The second wool felt 16 dampens the collision sound between the pressing part 11 and the key support 14.

[0042] Reference Figure 4 and Figure 5 In some embodiments, the piano key structure further includes a PCB board 17. One side of the PCB board 17 is supported on the upper end of the "Z"-shaped key bracket 14 and connected to the key bracket 14. In this embodiment, the PCB board 17 and the key bracket 14 are fixed together by a plurality of spaced bolts. The other side is supported on and connected to the base 1. In this embodiment, the PCB board 17 is bolted to the base 1 by bolts passing through a third connector 41, a second connector 31, a first connector 21, and then screwed onto the base 1, thereby ensuring stable fixation of the PCB board 17.

[0043] In some embodiments, the contact points on the silicone key 5 are provided with conductive carbon particles, which make contact with the gold fingers of the PCB board 17 to conduct electricity and emit signals. When playing the piano, the conductive carbon particles of the silicone key 5 trigger the gold fingers of the PCB board 17 to conduct signals to the motherboard, and the motherboard causes the speaker to emit a specified sound.

[0044] The implementation principle of a piano key structure in this application embodiment is as follows: the corresponding piano keys are connected to form various components through the first connector 21, the second connector 31 and the third connector 41, making the piano keys more integrated. The elasticity of each piano key is provided by the corresponding swing arm of each piano key and the silicone button 5 below. Since the swing arms of the same group of piano keys are connected through the same connector, the amplitude of the left and right swing of the piano keys is greatly reduced, ensuring the stability of the piano keys, thereby ensuring the playing feel and aesthetics.

[0045] The above are exemplary embodiments disclosed in this invention. However, it should be noted that various changes and modifications can be made without departing from the scope of the embodiments of this invention as defined by the claims. The functions, steps, and / or actions of the methods according to the disclosed embodiments described herein do not need to be performed in any particular order. Furthermore, although the elements disclosed in the embodiments of this invention may be described or claimed individually, they may be understood as multiple unless explicitly limited to a singular number.

[0046] It should be understood that, as used herein, the singular form "a" is intended to include the plural form as well, unless the context clearly supports an exception. It should also be understood that, as used herein, "and / or" refers to any and all possible combinations of one or more of the associatedly listed items. The embodiment numbers disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0047] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention (including the claims) is limited to these examples. Within the framework of the invention, technical features of the above embodiments or different embodiments can be combined, and many other variations of different aspects of the invention exist, which are not provided in the details for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the protection scope of the invention.

Claims

1. A piano key structure, characterized in that: The device includes a base, a first button assembly, a second button assembly, a third button assembly, and silicone buttons. The first button assembly includes a first connector and a first swing arm connected to the first connector at a distance, with the first swing arm connected to a first key. The second button assembly includes a second connector and a second swing arm connected to the second connector at a distance, with the second swing arm connected to a second key. The third button assembly includes a third connector and a third swing arm connected to the third connector at a distance, with the third swing arm connected to a third key. The first, second, and third connectors are stacked vertically and connected to the base. The first, second, and third keys are arranged horizontally and staggered. The silicone buttons are positioned below each of the first, second, and third keys.

2. The piano key structure according to claim 1, characterized in that: The first connector, the second connector, and the third connector each have a boss on one side and a groove on the other side. During installation, the boss of the first connector is inserted into and abuts against the groove of the second connector, and the boss of the second connector is inserted into and abuts against the groove of the third connector.

3. The piano key structure according to claim 2, characterized in that: A positioning cylinder is connected to the boss of the first connector, a positioning hole corresponding to the positioning cylinder is opened on the boss of the second connector, and a positioning post corresponding to the positioning hole is connected in the groove of the third connector; during installation, the positioning cylinder extends out of the positioning hole and the positioning post extends into the positioning cylinder.

4. A piano key structure according to claim 3, characterized in that: At least two positioning cylinders are spaced apart along the length of the first connector, and the positioning holes and positioning posts are arranged in a one-to-one correspondence with the positioning cylinders.

5. A piano key structure according to claim 1, characterized in that: The first key, the second key and the third key all have pressing parts, and the base is provided with a first wool felt. When the pressing part is pressed, the pressing part abuts against the first wool felt.

6. A piano key structure according to claim 5, characterized in that: It also includes a piano key bracket, which is installed on the base. The piano key bracket includes a limiting part, and a second wool felt is provided below the limiting part. When the pressing part is not pressed, the pressing part abuts against the second wool felt.

7. A piano key structure according to claim 6, characterized in that: It also includes a PCB board, one side of which is supported on and connected to the piano key bracket, and the other side is supported on and connected to the base.

8. A piano key structure according to claim 7, characterized in that: The silicone button has conductive carbon particles distributed on its contact points, which make contact with the gold fingers of the PCB board to conduct electricity and send signals.

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