The invention relates to a handheld jack hand tool which comprises a tool body, a rack frame is arranged at the upper end of a grab handle, a shaft penetrating hole penetrates through a first cavity and a second cavity in the rack frame, and a jacking piece is fixedly arranged at the front end of the rack frame; a supporting shaft penetrates through the shaft penetrating hole, a supporting piece is fixedly arranged at one end of the supporting shaft, and the upper stepping clamping piece is arranged on the supporting shaft in the first cavity in a sleeving mode and is pressed and pushed by a first spring; the handle is pivoted on the lower frame of the first cavity, an included angle is formed between the holding part and the grab handle, and the shifting and pushing end part enters the first cavity to be in contact with the stepping clamping piece; the slow descending device comprises a swing seat which is pressed and pushed by a first spring and is arranged in the second cavity; at least one shaft clamping piece and a limiting clamping piece pressed and pushed by a third spring are arranged in a piece containing groove and a piece containing groove of the swing seat and are clamped and locked on the heightening shaft. An eccentric part of an eccentric shifting and pushing piece leans against the limiting clamping piece and is provided with a pressing and pushing part; after the tool is used for lifting/jacking up a workpiece, the slow descending requirement and benefit of the workpiece can be achieved through operation of the slow descending device.

    本发明是一种握持式千斤顶手动工具,包括:一工具本体,在一握柄上端设一机架框,该机架框内部以一穿轴孔贯通第一、二腔室,且前端固设一顶撑件;一撑高轴穿置该穿轴孔,一端固设一支撑件,上步进夹片在该第一腔室中套设在该撑高轴上被一第一弹簧压推;一手把枢设在该第一腔室下边框上,握作部与握柄呈一夹角,拨推端部进入该第一腔室接触该步进夹片;一缓降装置,包括:一摆座被一第一弹簧压推,设在该第二腔室中;至少一夹轴片与一受到第三弹簧压推的限位夹片设在该摆座的容片槽与纳件槽中,夹锁在该撑高轴上;一偏心拨推件的偏心部靠置在该限位夹片上,具有押推部;工具用于工件抬/顶高后,能由缓降装置的操作,达成工件缓降需求与效益。


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    Title :

    Hand-held jack hand-operated tool


    Additional title:

    握持式千斤顶手动工具


    Contributors:

    Publication date :

    2024-05-14


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last



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