Automatic obstacle avoidance stand column

Abstract

The invention discloses an automatic obstacle avoidance stand column, which belongs to the technical field of lifting stand columns, and comprises a telescopic sleeve, a driving motor, a main controlunit for controlling the driving motor and a transmission assembly for driving the telescopic sleeve to stretch out and draw back under the driving of the driving motor, a positioning plate is arranged at the end of the telescopic sleeve, a strain gauge is installed on the outer side of the positioning plate, the strain gauge is electrically connected with the main control unit, when the stand column encounters resistance in the ascending process, the main control unit sends out a braking and/or returning instruction according to a level change signal generated when the strain gauges deform, the strain gauges in the stand column are arranged on the outer side of the positioning plate, are close to the motor and do not make contact with the motor, and therefore pressure brought by obstaclescan be sensitively sensed, and false alarm caused by vibration when the motor rotates is reduced, and the sensitivity and the accuracy are improved.

Description

【Technical field】 [0001] The invention relates to the technical field of lifting columns, in particular to an automatic obstacle avoidance column. 【Background technique】 [0002] With the development of economy and technology, intelligent home and office have become the mainstream trend, such as electric lifting table, electric lifting bed, etc., whose lifting is mainly realized by electric lifting column. When the lifting furniture encounters obstacles during the lifting process , if it is not stopped in time, it may damage the obstacle or the structure of the furniture itself. In severe cases, it may collide or squeeze the human body, causing personal injury. The function of stop or fallback is very important. Although some lifting columns on the market also have the function of fallback when encountering resistance, some of them have imperfect performance, low sensitivity and accuracy, and false alarms occur, or the structure Complicated and costly. 【Content of inventi...

AI Technical Summary

Problems solved by technology

[0002] With the development of economy and technology, intelligent home and office have become the mainstream trend, such as electric lifting table, electric lifting bed, etc., whose lifting is mainly realized by electric lifting column. When the lifting furniture encounters obstacles during the lifting process , if it is not stopped in time, it may damage the obstacle or the structure of the furniture itself. In severe cases, it may collide or squeeze the human body, causing personal injury. The function of stop or fallback is very important. Although some lifting columns on the market also have the function of fallback when encountering resistance, some of them have imperfect performance, low sensitivity and accuracy, and false alarms occur, or the structure complex and costly

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