Non-cylindrical scissor jack handle and elastic connection device thereof

Abstract

The invention discloses a non-cylindrical scissor jack multisegment operation handle and an elastic connection device thereof. In the jack handle, the anterior segment handle is provided with two through holes in hole and shaft fit with locking pin shafts; the posterior segment handle is provided with two prefabricated holes for riveting in advance, and is connected in series with an elastic metal plate with the locking pin shafts by two rivets which are squeezed; the anterior segment handle and the posterior segment handle are made into non-cylindrical fit which can better transfer torque moment; and the locking pin shafts are pressed on the body of the elastic metal plate. The jack handle and the connection device have the advantages of conveniently combining the length of the operation handle to adapt to jacking on different loads, ensuring the reliability of the handle when the handle is used, and facilitating accommodating after use.

Description

Technical field [0001] The invention relates to an operating handle of a mechanical jack, in particular to a multi-section operating handle of a non-cylindrical scissor jack and an elastic connection device thereof. Background technique [0002] The operating handle of the existing screw scissor jack is considered to have an appropriate distance between the operator and the vehicle or heavy object lifted by the jack during use, and when lifting the heavy object, a certain torque must be given to the screw to rotate, and The operating force required to generate this torque depends on the length of the handle, so the single-section handle is usually made very long. Even if some handles have been made into several sections, the mechanical connection between the front and rear section handles is not fast enough. The connection of the handle is not strong enough for convenience and torque transmission, especially the one-piece long handle, which brings inconvenience to the user f...

AI Technical Summary

Problems solved by technology

[0002] The operating handle of the existing screw scissor jack is considered to have an appropriate distance between the operator and the vehicle or heavy object lifted by the jack during use, and when lifting the heavy object, a certain torque must be given to the screw to rotate, and The operating force required to generate this torque depends on the length of the handle, so the single-section handle is usually made very long. Even if some handles have been made into several sections, the mechanical connection between the front and rear section handles is not fast enough. Convenience and lack of strength at the joint of the handle when transmitting torque, especially the one-piece long handle, which brings inconvenience to the user for storage after use

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