Multi-connection electric push rod structure

Abstract

The invention relates to a multi-connection electric push rod structure, which comprises a driving push rod unit, driven electric push rods arranged on the two sides of the driving push rod unit, a driving piece driving the driving push rod unit to stretch out and draw back, and a linkage piece which connects the driving push rod unit and the driven push rod unit so as to enable the driving push rod unit and the driven push rod unit to work synchronously. Each of the driving push rod unit and the driven push rod unit comprises a base, an outer pipe, an inner pipe, a screw and a nut, wherein the screw is rotationally connected to the base; one end of the outer pipe is fixed to the base and arranged outside the screw in a sleeving mode; the inner pipe is arranged in the outer pipe in a penetrating mode and arranged outside the screw in a sleeving mode, the nut is arranged at the end, which faces the base, of the inner pipe and is in threaded connection with the screw; the inner pipe andthe outer pipe are clamped in the rotating direction along the axis; and the driving piece is arranged on the base in the driving push rod unit and connected with the screw to drive the screw to rotate. According to the invention, the electric push rods can be better pushed out and contracted synchronously.

Description

technical field [0001] The invention relates to the technical field of electric push rods, in particular to a multi-connected electric push rod structure. Background technique [0002] Electric push rod, also known as linear drive, is a new type of linear actuator mainly composed of a motor push rod and a control device. The electric push rod includes a base, an outer tube, an inner tube, a screw, a nut and a drive motor. The screw is rotatably connected to the base. One end of the outer tube is fixed on the base and sleeved outside the screw. Set outside the screw, the nut is set on the end of the inner tube facing the base and threadedly connected with the screw, the inner tube and the outer tube are clamped in the direction of rotation along the axis, the driving motor is set on the base and connected with the screw to drive the screw to rotate, When the screw rotates, the inner tube and the nut approach or move away from the base along the axial direction of the screw, ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: since each electric push rod is driven by its own drive motor, it is necessary to use a controller to synchronize each drive motor, which is costly, and there will still be errors in the synchronization effect, so that each drive The extension and retraction of the electric push rod are not synchronized, resulting in damage to the connection between the electric push rod and the driven object

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