Automatic guide telescopic mechanism and telescopic method

Abstract

The invention discloses an automatic guide telescopic mechanism. The automatic guide telescopic mechanism comprises a first-stage sleeve, a second-stage sleeve, a third-stage sleeve and a guide cylinder, wherein the first-stage sleeve, the second-stage sleeve, and the third-stage sleeve are all hollow cavity structures, the first-stage sleeve, the second-stage sleeve and the third-stage sleeve arerespectively provided with a first-stage conical spring, a second-stage conical spring and a third-stage conical spring, and a three-position four-way solenoid valve is further arranged at the upperend inside the guide cylinder. According to the automatic guide telescopic mechanism, through arranging the air inlet and the exhaust of the three-position four-way solenoid valve, the multi-stage automatic telescopic process is realized by sequentially changing the air pressure in the guide cylinder, the third-stage sleeve, the second-stage sleeve and the first-stage sleeve, and the structure ismore flexible, so that the size of the axial space occupied by the telescopic mechanism is reduced, a larger stroke can further be provided, the a first-stage conical spring, the second-stage conicalspring and the third-stage conical spring are respectively arranged in the first-stage sleeve, the second-stage sleeve and the third-stage sleeve to realize flexible support and the space is further saved, and the occasions with limited installation space can be met.

Description

technical field [0001] The invention relates to an automatic guiding telescopic mechanism and a telescoping method. Background technique [0002] Common telescopic mechanisms often use a single ordinary cylindrical spring to achieve telescopic action and flexible support, but the ratio of the length of the ordinary cylindrical spring after compression to its free state is relatively large, so that the entire expansion and contraction after full compression will occupy a lot of axial space , and in the case of small installation space, the telescopic mechanism composed of a single ordinary cylindrical spring will be limited, and the stroke of the ordinary cylindrical spring is not variable, so it is not suitable for occasions that require a long stroke. [0003] Therefore, there is an urgent need to provide a telescopic mechanism that not only occupies a small axial space but can provide a long stroke. Contents of the invention [0004] The object of the present invention ...

AI Technical Summary

Problems solved by technology

[0002] Common telescopic mechanisms often use a single ordinary cylindrical spring to achieve telescopic action and flexible support, but the ratio of the length of the ordinary cylindrical spring after compression to its free state is relatively large, so that the entire expansion and contraction after full compression will occupy a lot of axial space , and in the case of small installation space, the telescopic mechanism composed of a single ordinary cylindrical spring will be limited, and the stroke of the ordinary cylindrical spring is not variable, so it is not suitable for occasions that require a long stroke

Images