Multi-sound-channel plastic-plate erhu

Abstract

The invention relates to a multi-sound-channel plastic-plate erhu. A neck comprises a phoenix-shaped neck tip stick, a tuning peg erecting stick and a tubular stick which are sheathed together. Sound outlets which are communicated with the cavity of the tubular stick are drilled in sheathed sections of the tuning peg erecting stick and the tubular stick. A fine tuning device is installed at the sheathed sections. The lower section of the tubular stick is inserted into a sound box. A rectangular hole is arranged in the section of the tubular stick in the sound box. Air which is excited to vibrate in the sound box can enters the cavity of the tubular stick from the rectangular hole. Generated resonant sounds come out from the sound outlets in the tubular stick. The skin of the sound box is a thin plastic plate. Pairs of small holes are symmetrically arranged in the circumference of the thin plastic plate and are used as sound outlets. A spring is fixedly arranged at the central part of the internal surface of the thin plastic plate. A thin plastic disc is connected onto the moving end of the spring. By taking a vibration balance position of the thin plastic disc as a starting point, a front resonant box of the sound box is formed between the vibration balance position and the thin plastic plate, and a rear resonant box of the sound box is formed between the vibration balance position and a sound window. Compared with the prior art, the texture of the skin is even, the skin is easy to install, the probability of generating impure sounds is small, the skin is not influenced by climate and temperature, multiple sound channels can be formed and a fine-sounding effect is taken during playing.

Description

technical field [0001] The invention relates to musical instruments, in particular to a multi-channel plastic board erhu. Background technique [0002] The erhu is a traditional musical instrument that is widely loved and used in my country. Its main body is a piano bar with a headstock and two peg holes on the upper part, and a front snakeskin cover. The qin tube of the sound window is installed on the bottom of the qin bar. The accessories include: pegs, jacks, bridges, strings, piano rests, bows, etc. The vibrating membrane of the traditional erhu pronunciation is all snake skin, with python skin as the top grade. Snakes, especially boa constrictors, are ecologically protected animals today, so taking a large amount of snake skin to make a piano is against the requirements of ecological protection. In addition, the snake skin erhu also has many shortcomings: ①. Due to the uneven thickness of the snake skin (thick in the center of the scales and thin in the gap between t...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a solution to the contradiction between the traditional erhu using snakeskin as the pronunciation diaphragm and ecological protection, and at the same time solve the problem of easy noise and the influence of climate temperature and humidity caused by the snakeskin itself when playing. Materials and technologies with defects such as changes in sound quality

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