Speed changing force-saving skeleton symbol screw block and operating rocker handle thereof

Abstract

The invention relates to a simplified jack which is rapid and labor saving and is composed of a diamond lifting platform, a head seat, a chassis and a guide screw, wherein the left end of the lifting platform is provided with a nut, a sleeve is arranged at the right end of the lifting platform, the two ends of the guide screw are respectively sleeved in the nut and a bucket, and a labor-saving speed reducer is disposed at the right end of the lifting platform. The invention also relates to an operating crank of the simplified jack which is rapid and labor saving, which comprises a handle and an operating head provided with an operating hole corresponding to an operating handle of the jack, and the handle is hinged on the operating head. The jack of the invention has the advantages of good safety and stability, simply operation, convenient and labor-saving operation, reliable functions, small volume, convenient carrying, low costs, strong adaptability, long service life and good stability, which can be used by the old and women and can not be limited by drivers' force in the time of using. The operating crank handle is laborsaving and convenient in usage.

Description

(1) Technical field [0001] The invention belongs to jacks, in particular to a variable-speed and labor-saving simple jack and its operating handle. (2) Background technology [0002] Jack is a tool commonly used in automobile maintenance. The jacks used in the market are nothing more than hydraulic or mechanical. They are divided into vertical and horizontal. Vertical hydraulic or mechanical jacks are not suitable for cars and minicars with low chassis. Although hydraulic horizontal jacks are suitable for cars and mini-cars with low chassis, they are bulky, expensive, short-lived, prone to oil leakage, and difficult to repair. The hydraulic oil is greatly affected by temperature and has poor adaptability, so it is not suitable for vehicles with low chassis. Car carry. Although the mechanical horizontal jack generally used at present is small in size and easy to carry, it takes a lot of effort to use, and is limited by the strength of the driver, and the driver with little ...

AI Technical Summary

Problems solved by technology

Although hydraulic horizontal jacks are suitable for cars and mini-cars with low chassis, they are bulky, expensive, short-lived, prone to oil leakage, and difficult to repair. The hydraulic oil is greatly affected by temperature and has poor adaptability, so it is not suitable for vehicles with low chassis. car carry

Although the currently widely used mechanical horizontal jacks are small in size and easy to carry, they are laborious to use, and limited by the strength of the driver, drivers with little strength cannot use them normally.

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