基于二胡琴轴的省力调节机构
By setting an adjustment mechanism with a gear ratio of 30:6 on the erhu tuning pegs, the problem of laborious erhu tuning peg adjustment is solved, enabling effortless adjustment of string tension, simplifying the operation process, and improving ease of use.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
- Filing Date
- 2025-08-13
- Publication Date
- 2026-07-17
AI Technical Summary
The existing erhu tuning pegs are difficult to adjust, making them hard for beginners to operate and prone to damage. Even experienced users can easily injure their hands by using too much force.
An adjustment mechanism with a gear ratio of 30:6 is adopted. Through the meshing of the first and second sprockets, torque is amplified. Combined with the limiting structure of ratchet and pawl, the operation process is simplified.
It enables effortless adjustment of string tension, making it easy for both beginners and experienced users to operate, avoiding damage to the tuning pegs and hand injuries caused by excessive force.
Smart Images
Figure CN224519493U_ABST
Abstract
Claims
1. A labor-saving adjusting mechanism based on the two-stringed Chinese violin peg, comprising a two-stringed Chinese violin body (4) equipped with two groups of pegs (1) on the sides, characterized in that: The tuning peg (1) is internally equipped with an adjustment mechanism (2); The adjustment mechanism (2) includes a first bearing (21), the outer wall of the first bearing (21) is fitted to the front part of the inner wall of the piano pin (1), a first rotating rod (22) is fixedly connected to the inner wall of the first bearing (21), a first spur gear (23) is fixedly sleeved on the outer wall of the first rotating rod (22), a second bearing (25) is fixedly connected to the side of the inner wall of the piano pin (1), a second rotating rod (26) is fixedly connected to the front of the inner wall of the second bearing (25), a second spur gear (24) is fixedly sleeved on the outer wall of the second rotating rod (26), a knob (27) is fixedly connected to the side of the second rotating rod (26), and a limit component is assembled inside the piano pin (1).
2. The ergonomic adjustment mechanism based on the Er-Hu peg as claimed in claim 1, wherein: The limiting component includes a ratchet (28), which is fixedly sleeved on the outer wall of the first rotating rod (22). The inner wall side of the piano pin (1) is hinged with a pawl (29) through a hinge rod, and a connecting rope (210) is fixedly connected to the side of the pawl (29).
3. The ergonomic adjustment mechanism based on the Er-Hu peg as claimed in claim 2, wherein: The connecting rope (210) extends forward through the piano peg (1), and a baffle (211) is fixedly sleeved on the outer wall of the connecting rope (210).
4. The force-saving adjustment mechanism based on the erhu tuning pegs according to claim 3, characterized in that: The ratchet (28) and the pawl (29) engage with each other.
5. The erhu spool-based power-saving adjustment mechanism according to claim 1, characterized in that: The first sprocket (23) meshes with the second sprocket (24).
6. The erhu spool-based power-saving adjustment mechanism according to claim 1, characterized in that: The first spur gear (23) has thirty teeth.
7. The erhu spool-based power-saving adjustment mechanism according to claim 1, characterized in that: The second sprocket (24) has six teeth.
8. The erhu spool-based power-saving adjustment mechanism according to claim 2, characterized in that: The limiting components consist of two sets.
9. The ergonomic adjustment mechanism based on the Er-Hu peg as claimed in claim 8, wherein: The two sets of ratchet (28) and pawl (29) are arranged in a mirror symmetric configuration.
10. The erhu spool-based power-saving adjustment mechanism according to claim 1, characterized in that: The top of the first rotating rod (22) has a string hole (3) for threading the string.