A portable lifting tool

Abstract

The invention discloses a portable lifting tool. The portable lifting tool comprises a lifting handle, an insertion column, a fasting cushion, an elastic washer, a weighing sensor, an elastic weighing hook, a lifting ring and an annular hooking groove, wherein the insertion column is fastened on and connected with the lifting handle to form an integral structure; the outer surface of the insertion column is coated with the fastening cushion; the end part of the lifting handle is coated with the elastic washer; the lifting handle is provided with the weighing sensor; the weighing sensor is provided with the elastic weighing hook; the end part of the lifting handle is provided with the lifting ring; the lifting ring and the lifting handle are connected by a rotatable connecting bolt; the lifting handle is of a dual-frustum structure arranged symmetrically, and the lateral wall of the lifting handle is in circular arc transition; the annular hooking groove is arranged between the frustum top ends of the dual-frustum structure, wherein the cross section of the annular hooking groove is semicircular; the contact surface of the annular hooking groove and a lifting steel wire rope is provided with a plurality of bulges; the bottom of the annular hooking groove is coated with an antislip cushion; the dual-frustum structure and the annular hooking groove are of an integral structure which is cast and molded integrally; and the cross section of the insertion column is rectangular, elliptical or rhombus. The portable lifting tool has the advantages of good flexibility, convenient use and good safety.

Description

Technical field [0001] The invention relates to the technical field of mechanical equipment manufacturing, in particular to a portable lifting tool. Background technique [0002] Spreader refers to a device for lifting heavy objects in a crane. The most commonly used spreader for lifting a piece of goods is a hook. Others include rings, lifting suction cups, clamps and forks. It is widely used in the hoisting industry. [0003] In the spreader, chain spreaders such as hooks are commonly used. Lifting suction cups, clamps and forks can be used on cranes as special spreaders for a long time, and can also be used as replaceable auxiliary spreaders to hang on hooks for temporary use. They are often used in warehouses and yards of multiple cargoes to improve Operational efficiency. The spreader for grabbing bulk materials is generally a grab bucket with openable jaws, and electromagnetic chucks can also be used to suck magnetically conductive materials such as metal chips. [0004] H...

AI Technical Summary

Problems solved by technology

[0005] When installing a large machine tool, if ordinary spreaders are used for hoisting, it is often difficult to make full use of these lifting points due to the limitation of the structure of the spreader due to the relatively few spreaders, especially for the lifting of relatively regular objects with multiple symmetrical lifting points. It is inconvenient to adjust during the hoisting process, which affects the rotation of the hoisted large object; at the same time, because the weight of the hoisting tool itself is generally heavy, the hoisting flexibility is poor, inconvenient to use, the efficiency is low, and it is easy to scratch the surface of the hoisted object during the hoisting process. The steel rope breaks, the workpiece breaks and even causes a safety accident

[0006] In the process of realizing the present invention, the inventor found that there are at least defects such as poor flexibility, inconvenient use and poor security in the prior art

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