The invention discloses an anti-theft and anti-lost automatic whistling type license plate protection frame which comprises a fixing frame, an elastic air bag is embedded in the side wall of the fixing frame, a liquid storage cavity is formed in the lower portion of the side wall of the fixing frame, and a plurality of liquid guide pipes are horizontally installed in the liquid storage cavity at equal intervals. The end, away from the liquid storage cavity, of each liquid guide pipe partially penetrates through the side wall of the fixing frame and is inserted into an elastic air bag, a flow gathering pipe is embedded into the upper portion of the side wall of the fixing frame, and a plurality of air guide pipes are horizontally inserted into the elastic air bag at equal intervals. The end, away from the elastic air bag, of each air guide pipe is embedded in the side wall of the fixing frame and communicates with the flow gathering pipe. Reaction liquid in the liquid storage cavity is sucked into the elastic air bag to react to generate a large amount of gas to drive the whistle to whistle due to resilience and air suction of the elastic air bag caused by loosening of the license plate, and the license plate is extruded through gas pressure to cause increase of rotating friction force between the license plate and the safety screw and difficult falling; and the license plate can be stably and effectively prevented from being stolen or lost.

    本发明公开了一种防盗防丢自动鸣笛式车牌保护框,包括固定框,所述固定框的侧壁嵌设有弹性气囊,所述固定框的侧壁下方开设有储液腔,所述储液腔内水平等距安装有多个导液管,每个所述导液管远离储液腔的一端局穿过固定框的侧壁并插设在弹性气囊内,所述固定框的侧壁上方内嵌设有聚流管,所述弹性气囊上水平等距插设有多个导气管,每个所述导气管远离弹性气囊的一端均嵌设在固定框的侧壁内并与聚流管连通。本发明通过利用车牌松动导致弹性气囊回弹吸气将储液腔内的反应液体吸入弹性气囊内反应产生大量气体驱动汽笛鸣笛,且通过气体压力挤压车牌导致车牌与安全螺丝之间旋转摩擦力增大,难以脱落,能够稳定有效的避免车牌被盗或丢失。


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    Title :

    Anti-theft and anti-lost automatic whistling type license plate protection frame


    Additional title:

    一种防盗防丢自动鸣笛式车牌保护框


    Contributors:
    YAO DONG (author) / NI FENG (author)

    Publication date :

    2021-04-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL , Anordnung von Signal- oder Beleuchtungsvorrichtungen, deren Einbau oder Halterung oder deren Schaltkreise bei Fahrzeugen allgemein



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