The invention discloses an instant braking unpowered trolley which comprises a trolley frame, a walking system, a holding assembly and a braking assembly. The walking system is arranged at the bottomof the frame and comprises a first wheel set and a second wheel set. The brake system comprises a clamping piece fixedly connected with the second wheel set and a clamping hook rotationally connectedwith the frame, wherein the clamping hook clamps the clamping piece to lock the second wheel set, and the holding assembly is movably connected with the end, away from the clamping piece, of the clamping hook in a non-disengaged mode. A reset spring is further arranged between the clamping hook and the frame. The brake system is kept in a locking state when no external force of the holding assembly is input; and the brake system in the normally-locked state can prevent vehicle sliding and backward sliding. During walking, the holding assembly is pressed, so that the external force borne by thebrake system disappears immediately, the traveling trolley can be braked immediately, and the driving safety is guaranteed.

    本发明公开了一种即时制动无动力手推车,包括:车架、走行系统、握持组件以及刹车组件;所述走行系统设置于所述车架的底部,所述走行系统包括第一轮组和第二轮组;所述刹车系统包括与第二轮组固定连接的卡接件以及与所述车架转动连接的卡钩,所述卡钩卡住所述卡接件以锁止所述第二轮组,所述握持组件与所述卡钩远离所述卡接件的一端活动且不脱离的连接,所述卡钩与所述车架之间还设置有复位弹簧。刹车系统在没有握持组件的外力输入时,保持锁紧状态。处于常锁状态的刹车系统能够防止发生溜车和倒滑。行走时按压握持组件,使得刹车系统受到的外力即时消失,进而使得行进中的手推车能够被即时刹车,保证了行车安全。


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    Titel :

    Instant braking unpowered trolley


    Weitere Titelangaben:

    一种即时制动无动力手推车


    Beteiligte:
    LI FEIFEI (Autor:in) / WU BAOYOU (Autor:in) / XU SONG (Autor:in) / WU YANJUN (Autor:in)

    Erscheinungsdatum :

    2021-01-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    IPC:    B61D Einzelheiten oder Arten des Wagenaufbaus von Eisenbahnfahrzeugen , BODY DETAILS OR KINDS OF RAILWAY VEHICLES / B61H Bremsen oder andere Verzögerungseinrichtungen ausgebildet für Schienenfahrzeuge , BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES / B62B Von Hand bewegte Fahrzeuge, z.B. Handkarren oder Kinderwagen , HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS



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