A four-column lift with a rotatable column

Abstract

The invention discloses a four-column lift with rotatable columns and relates to the field of lift manufacturing. The invention includes a base, a column, a workbench and a slider; a surface of the base is provided with a plurality of annular grooves; an annular rack is provided on the edge of the outer groove of the annular groove; A hydraulic cylinder is fixedly connected in the groove; a stepping motor is arranged under the limit groove; one end of the stepping motor is connected and fixed with a gear; A bearing is provided at the end of the rotating shaft that is not connected with the first bump; the ring rack is meshed with the gear; the surfaces of the two bearings are separated from the inner surface and the outer surface of the annular groove respectively. The invention drives the upright column to rotate flexibly in the annular groove through the rotation of the motor, and the vehicle can drive onto the workbench from multiple directions, which improves the flexibility of the four-post lift and avoids collision and friction between the vehicle and the upright column.

Description

technical field [0001] The invention belongs to the field of lift manufacturing, in particular to a four-column lift with rotatable columns. Background technique [0002] As my country's cars go deep into families, the car repair industry has also ushered in a peak period, and the demand for car lifts has also increased, because it is a common equipment in car repair workshops. [0003] At present, lifts generally have column type and scissor type, and their driving methods include chain transmission, hydraulic transmission, and pneumatic transmission; among them, the placement requirements of lifts have become an important concern. Usually the four-post lift can only provide a channel for the upper and lower workbenches, and the other two sides are often not used. Usually, due to site restrictions and vehicle width restrictions, the four-post lift needs to be adjusted. The four post pairs are fixed on the bottom plate. As a result, the flexibility of the four-post lift is ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a four-column lift with a rotatable column. By setting an annular groove on the base, a stepping motor at the lower end of the column is used to drive the gear to mesh with the ring rack outside the annular groove; Install the bearing so that the bearing and the annular groove fit each other, which solves the problem that the column of the existing four-post lift cannot move and the flexibility of the four-post lift is insufficient

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