一种琴槌测速装置
By using a laser velocimetry method that combines a light-blocking plate on the hammer with a measuring mechanism, the problem of complex key movement speed measurement in existing technologies has been solved, and accurate measurement of hammer movement speed has been achieved.
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
AI Technical Summary
In existing technologies, the speed measurement structure for piano key motion is relatively complex, making it difficult to achieve accurate measurement.
A speed measuring device is set along the movement trajectory of the hammer, and the speed of the hammer movement is measured by laser speed measurement in conjunction with a light-blocking plate and a measuring mechanism.
It achieves precise measurement of hammer movement speed, has a simple structure, integrates well with the original piano structure, avoids motion transmission lag, and ensures accurate measurement.
Smart Images
Figure CN224518750U_ABST
Abstract
Claims
1. A hammer speed measuring device, characterized in that include: At least one set of measuring mechanisms (1) is provided on the mounting plate (3), and a light-blocking plate (2) is provided on the hammer (6), the light-blocking plate (2) being movable within the measuring mechanisms (1); wherein, The light-blocking plate (2) includes: a first body (201) disposed on the hammer (6), and a second body (202) connected to the first body (201); The measuring mechanism (1) includes: a third body (101) with a U-shaped cross-section, and a sensing device disposed within the third body (101); When the hammer (6) reciprocates, the second body (202) reciprocates within the U-shaped cavity (102) of the third body along with the hammer (6).
2. A hammer velocity meter according to claim 1, characterised in that The mounting plate (3) includes a horizontal plate (301), which is disposed between the hammer (6) and the detection bracket (7), and a plurality of the measuring mechanisms (1) are mounted side by side on the horizontal plate (301).
3. A hammer velocity meter according to claim 2, wherein The mounting plate (3) further includes a side plate (302), which is connected to the horizontal plate (301) and is fixed to the key side wood (8).
4. A hammer velocity meter according to claim 3, wherein The L-shaped side panel (302) includes a first side and a second side. A connecting portion (303) extends downward from one side of the horizontal plate (301). The first side of the side panel (302) is connected to the key side wood (8), and the second side of the side panel (302) is connected to the connecting portion (303).
5. The hammer velocity meter of claim 1, wherein One of the hammers (6) is provided with a light-blocking plate (2) and corresponds to a measuring mechanism (1).
6. The hammer velocity meter of claim 1, wherein The first body (201) includes a mounting part (2011) and a fixing part (2012). The second body (202) is connected to the fixing part (2012). The mounting part (2011) has a semi-circular cross-section and can be sleeved on the top rod (4) of the hammer (6).
7. The hammer velocity meter of claim 1, wherein Along the second body (202) A measuring unit (2021) extends from one corner of the edge, and the measuring unit (2021) is capable of reciprocating within the third body (101).
8. The hammer velocity meter of claim 1, wherein The first body (201) is connected to the second body (202) by fasteners.
9. The hammer velocity meter of claim 1, wherein The sensing device installed inside the third body (101) has a dual-beam velocity measuring laser.
10. The hammer velocity meter of claim 1, wherein The thickness of the second body (202) is less than the width of the U-shaped cavity (102) of the third body.