Portable hand-cranking jack

A kind of jack and portable technology, applied in the direction of lifting equipment safety devices, lifting devices, etc., can solve the problems of safety accidents, no protection mechanism, etc., and achieve the effect of avoiding safety accidents and avoiding accidental descent
CN114701966APending Publication Date: 2022-07-05浙江宏钰起重机械有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
浙江宏钰起重机械有限公司
Publication Date
2022-07-05

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Abstract

The invention discloses a portable hand-cranking jack which comprises the components of a housing which is provided with an accommodating cavity with an opening at the top; a sliding groove arranged in the vertical direction is formed in the inner side wall of the shell. The first screw rod is vertically and rotatably arranged in the accommodating cavity; the moving part is in threaded connection with the first screw rod, and the top end of the moving part extends out of the shell through the opening; a sliding block matched with the sliding groove is arranged on the moving part; the rotating part is rotationally connected with the shell, and one end of the rotating part extends into the accommodating cavity; the first gear is positioned in the accommodating cavity and is mounted on the first screw rod; the second gear is located in the containing cavity, connected with the rotating piece and meshed with the first gear; and the limiting part is used for preventing the rotating piece from rotating along the reverse direction. According to the invention, safety accidents can be avoided.
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Description

technical field

[0001] The invention relates to the technical field of jacks, in particular to a convenient hand-cranked jack. Background technique

[0002] The jack refers to the use of a rigid jacking piece as a working device. Jacks are mainly used in factories, mines, transportation and other departments as vehicle repair and other lifting and support work. Its structure is light, strong, flexible and reliable, and can be carried and operated by one person.

[0003] Jacks have been widely used as mechanical maintenance and repair tools. Now the jacks sold on the market are mainly divided into three types: rack jacks, screw jacks and hydraulic jacks.

[0004] In Chinese Patent Application No.: CN202010545477.3, an electric drill hand-cranked dual-purpose jack is disclosed. The jack is based on the existing hand jack, and a hexagonal head is fixed on the outside of the gear shaft of the jack body. The hexagonal head is located outside the gear housing of the jack body. ...

Claims

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