Telescopic device

• Main Authors: ZHANG BAOQUAN, PENG DAN, LI SHUAI, QIU XIONGSHENG, HU HONGFEI, YUAN MEI
• Format: Patent
• Language: Chinese; English
• Published: 28.10.2022
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; ENGINEERING ELEMENTS AND UNITS; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model provides a telescopic device which comprises a first-stage telescopic mechanism and a second-stage telescopic mechanism, the first-stage telescopic mechanism and the second-stage telescopic mechanism are connected through a guide rail, and a driving device is arranged on the first-stage telescopic mechanism; the first-stage telescopic mechanism is provided with a front-end wheel shaft and a rear-end wheel shaft, a synchronous belt is arranged on the front-end wheel shaft and the rear-end wheel shaft, one side of the synchronous belt is fixed to the lower portion of the driving device, and the other side of the synchronous belt is fixed to the upper portion of the second-stage telescopic mechanism; the driving device drives the first-stage telescopic mechanism, and the first-stage telescopic mechanism drives the second-stage telescopic mechanism to relatively slide along the guide rail through the synchronous belt. Two-stage stretching and retracting are achieved in the mode that the air cyli