The invention provides an air whistle, which belongs to the technical field of sound production equipment, and comprises an air whistle seat, a sound production structure, a loudspeaker, a frequency modulation seat and an air source connecting part. When the air whistle provided by the invention is used, an air source or a compressed air source is connected to the air source connecting part, air passes through the air source connecting part and enters a first air chamber in the air whistle seat, gas interacts with the sound production structure in the first air chamber, the sound production structure deforms and makes a sound through the loudspeaker, the frequency of deformation and recovery of the sound production structure forms the sound production frequency of the air whistle, and thespace between the sound production structure and the frequency modulation seat is changed by adjusting the distance of the frequency modulation seat extending into the open cavity, therefore, the deformation of the sounding structure towards a second air chamber is different, the time for restoring the sounding structure to the original shape changes along with the space size of the second air chamber, and the frequency of the air whistle is changed.

    本发明提供了一种风笛,属于发声设备技术领域,包括风笛座、发声结构、喇叭、调频座以及风源连接部,本发明提供的风笛,使用时,将风源或者压缩气源连接于风源连接部上,气体穿过风源连接部进入到风笛座内的第一气室内,气体在第一气室内与发声结构相互作用,使发声结构变形并通过喇叭发出声音,发声结构的变形并恢复的频率形成风笛的发声频率,通过调节调频座伸入开口腔的距离改变发声结构与调频座之间的空间,使得发声结构朝向第二气室的变形量不同,发声结构回复原形的时间随着第二气室空间大小而变化,进而改变风笛的频率。


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    Title :

    Air whistle


    Additional title:

    风笛


    Contributors:
    GUO XIAOXING (author) / ZHU LIQIANG (author) / LIANG JIANQUAN (author) / QIN JIAYING (author) / LI HUAMING (author) / LI TONGSHENG (author) / QU QIUFEN (author)

    Publication date :

    2021-01-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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