Training whistle with adjustable tone
A variable tone and whistle technology, applied in whistle, sounding equipment, instruments and other directions, can solve the problems of unacceptable ears and difficult to meet the rules of training activities, and achieve the effect of improving magnetic attraction.
Active Publication Date: 2017-05-31
义乌市诠铈新材料有限公司
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Problems solved by technology
[0002] In the process of physical education teaching, the whistle is a basic product, mainly used for issuing orders; the traditional whistle includes a mouthpiece and a resonance chamber, and the airflow blown into the whistle from the mouthpiece is sharpened at the connection between the mouthpiece and the resonance chamber. Split and tear apart, one part flows out from the air outlet above the resonant cavity, and the other part enters the resonant cavity, making the ball in the resonant cavity shake continuously to continuously change the cavity shape of the resonant cavity, thereby continuously changing the resonance frequency to suppress whistle Monotonous, high-pitched sounds that are hard on the ears
[0003] For this kind of traditional whistle, when the whistle blowing power is determined, the volume and pitch of the whistle are basically stable, so it is impossible to express different commands with one whistle, and it is difficult to meet the rules of rich training activities
Method used
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Embodiment 1
[0015] exist figure 1 , figure 2 In the shown embodiment one, the adjustable training whistle includes a mouthpiece 1, and the mouthpiece 1 is connected to a resonant cavity 2 whose longitudinal section is circular; the connection between the mouthpiece 1 and the resonant cavity 2 is fixed with a pointed Chopping block 3, and resonant chamber 2 has air outlet 20 on the rear top of wedge block 3; Said resonant chamber 2 is provided with iron ball 4; cavity 5, a permanent magnet slider 6 is constrained in the sliding cavity 5, and a supporting compression spring 7 is arranged between the permanent magnet slider 6 and the bottom of the sliding cavity 5.
[0016] The above-mentioned adjustable training whistle, the port of the sliding cavity 5 can be inserted with the thumb to ensure the convenience of pressing the permanent magnetic slider 6; the iron ball 4 is made of a hollow sphere to reduce its weight , making it easy to blow.
[0017] During the use of the variable adjus...
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The invention provides a training whistle with the adjustable tone. The training whistle comprises a whistle nozzle, wherein the whistle nozzle is connected to a resonant cavity with a round longitudinal section; a wedge block is fixed at the joint of the whistle nozzle and the resonant cavity, and an air outlet is formed at the position, above the rear part of the wedge block, of the resonant cavity; a small iron ball is arranged in the resonant cavity; a sliding cavity with the open outer end is arranged on the side surface of the resonant cavity, a permanent magnet slider is limited in the sliding cavity, and a support pressure spring is arranged between the permanent magnet slider and the bottom of the sliding cavity. According to the training whistle with the adjustable tone, the whistling tone can be conveniently adjusted, so that different training commands can be expressed.
Description
technical field [0001] The invention relates to the field of sporting goods, in particular to a training whistle. Background technique [0002] In the process of physical education teaching, the whistle is a basic product, mainly used for issuing orders; the traditional whistle includes a mouthpiece and a resonance chamber, and the airflow blown into the whistle from the mouthpiece is sharpened at the connection between the mouthpiece and the resonance chamber. Split and tear apart, one part flows out from the air outlet above the resonance cavity, and the other part enters the resonance cavity, making the ball in the resonance cavity shake continuously to continuously change the cavity shape of the resonance cavity, thereby continuously changing the resonance frequency to suppress whistle Make a monotonous and sharp sound that is hard for the ear to accept. [0003] For this kind of traditional whistle, the volume and pitch of the whistle are basically stable when the wh...
Claims
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IPC IPC(8): G10K5/00
CPCG10K5/00
Inventor 朱小菊
Owner 义乌市诠铈新材料有限公司