一种琴键控制装置
By setting up control and striking devices below the keys, the problems of complex structure and sound distortion in existing pianos are solved, achieving a simple and efficient implementation of automatic playing function and adapting to changes in piano structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXIAN HONGYIN (CHONGQING) TECHNOLOGY CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
Smart Images

Figure CN224519487U_ABST
Abstract
Claims
1. A key control device characterized by comprising: include: At least one set of control devices (1) and at least one set of striking devices (2) are disposed on a keyboard frame (4), wherein the striking devices (2) are disposed below the tail (3) of the keys, and the control devices (1) are disposed below the head (6) of the keys, and the control devices (1) are connected to the striking devices (2); wherein, The control device (1) includes a control board (101), which is fixed to the keyboard frame (4) by a plurality of fasteners (102); The striking device (2) includes: a striking part, and a power device connected to the striking part, and the control board (101) is connected to the power device; When the piano key needs to produce sound, the power device is driven by the control board (101). The power device causes the corresponding striking part to move along the direction of the key tail (3). The striking part strikes the key tail (3) of the corresponding piano key, and the key tail (3) drives the action to produce sound.
2. The key control device according to claim 1, characterized by The control device (1) further includes a base plate (103) fixedly mounted on the keyboard frame (4), and the control board (101) is fixed on the base plate (103) by the fastener (102).
3. The key control device according to claim 1, characterized by The fastener (102) is also provided with an elastic element (104).
4. The key control device according to claim 1, characterized by The striking part includes: a plurality of first striking elements (201) and second striking elements (202) arranged side by side, each of the first striking elements (201) and the second striking element (202) corresponding to the tail (3) of two adjacent piano keys respectively.
5. The key control device according to claim 1, characterized by Each of the piano keys has a magnet on the side of its head (6) closest to the keyboard frame (4), and a magnetic sensor is provided on one side of the magnet. The control panel (101) located below the key head (6) has multiple openings (105). As the keyhead (6) of each key moves toward the keyboard frame (4), the magnet passes through the corresponding opening (105).
6. The piano key control device according to claim 3, characterized in that, The elastic element (104) is a spring.
7. The key control device of claim 1, wherein The fastener (102) is a screw.
8. The key control device of claim 1, wherein The fastener (102) is located at the edge of the control panel (101).
9. The key control device of claim 1, wherein The keyboard holder (4) is provided with a support part (5), and the control device (1) and the striking device (2) are respectively provided on both sides of the support part (5).
10. The key control device according to claim 9, characterized by The height of the control device (1) is lower than the height of the support (5).