A stepless automatic control device

Abstract

The invention discloses a stepless automatic control device which comprises a long sleeve, wherein a step sleeve, an elastic automatic control sleeve ring, a force adjusting sleeve, an outer guide sleeve and a retaining ring are arranged in the long sleeve, a pull rod and the step sleeve are connected to form a stepless automatic control device; after the long sleeve and the pull rod of the stepless automatic control device are correspondingly connected with parts other than the control device, if the axial force of the pull rod or the long sleeve is greater than the frictional resistance between the elastic self-control sleeve ring and a hole of the long sleeve, stepless movement is carried out between the pull rod and the axial direction of the long sleeve, otherwise, the movement in the axial direction is controlled automatically by the frictional resistance, and thus the stepless automatic control is realized. The stepless automatic control device has the characteristics of stepless automatic control, simple structure, easy operation, being suitable for matching with a stepless automatic gate controller, and further being suitable for matching in a variety of works that require a combination of unchanged and gradually changing and unchanged control force, or a combination of controlling the unchangeableness and gradually changeableness of the control force, or always gradually changing control force or always unchanging control force.

Description

technical field [0001] The invention relates to the field of mechanical control structures, in particular to a stepless automatic control device. Background technique [0002] The control methods of linear stepless movement or angular stepless rotation between two components are generally divided into: electric control, pneumatic control, hydraulic control, and mechanical control. At present, these control methods have different defects. [0003] First of all, electric control and air control, on the one hand, need uninterrupted power supply and gas supply to ensure uninterrupted work, on the other hand, if the circuit air circuit fails, it is difficult to maintain normal work; secondly, hydraulic control has oil leakage, pollutes the environment, and combustion is not fireproof. and other risk defects; finally, mechanical control, such as the existing stepless positioner, is not completely horizontal to the ground plane, and is not completely parallel to the door leaf rotat...

AI Technical Summary

Problems solved by technology

[0003] First of all, electric control and air control, on the one hand, need uninterrupted power supply and gas supply to ensure uninterrupted work, on the other hand, if the circuit air circuit fails, it is difficult to maintain normal work; secondly, hydraulic control has oil leakage, pollutes the environment, and combustion is not fireproof. and other risk defects; finally, mechanical control, such as the existing stepless positioner, is not completely horizontal to the ground plane, and is not completely parallel to the door leaf rotation track and the ground plane. Although they are all called stepless positioning, they have not actually achieved stepless positioning. The function of level positioning, especially the defect that it is very inconvenient to operate. Although it has been in the market for several years, there is no market. Large, and the window is an integral structure, once a fault occurs, it is difficult to repair, there is no versatility, and the use environment is too small

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