The present disclosure relates to the field of trailer jacks, and in particular to a trailer jack connecting seat. The trailer jack connecting seat comprises a fixing plate, a rotating shaft rotatably mounted on the fixing plate, a torsion spring connected between the fixing plate and the rotating shaft, a positioning sleeve fixedly connected to the fixing plate and configured to support the rotating shaft, and a limit pin inserted into the rotating shaft and the positioning sleeve. The torsion spring mounted on the trailer jack connecting seat can rotate with the rotating shaft and a trailer jack. During the deployment of the trailer jack, the torsion spring transforms gravitational potential energy of the trailer jack into its elastic potential energy, so that the rotation speed and impulse of the trailer jack are reduced to avoid a safety risk of impact. During the retraction of the trailer jack, the torsion spring transforms its elastic potential energy back into the gravitational potential energy of the trailer jack, so as to reduce the user's work to overcome the weight of the trailer jack and make the retraction of the trailer jack more labor-saving with good user experience.


    Access

    Download


    Export, share and cite



    Title :

    TRAILER JACK CONNECTING SEAT


    Contributors:
    WANG CHUANJIE (author) / LIU WEI (author) / SHI YUBO (author) / LIU PENGFEI (author) / SHEN BOWEN (author)

    Publication date :

    2025-05-29


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60D Fahrzeugverbindungen , VEHICLE CONNECTIONS / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen



    Trailer jack

    FAMOSI JOHN | European Patent Office | 2022

    Free access

    TRAILER JACK

    FAMOSI JOHN | European Patent Office | 2022

    Free access

    Trailer Jack

    RENSINK RODNEY LEE | European Patent Office | 2015

    Free access

    Trailer jack

    JONATHAN M HARRISON | European Patent Office | 2016

    Free access

    Trailer jack

    FOGG CHRISTIAN / RAGER TY / NI NICK | European Patent Office | 2025

    Free access