The invention discloses a platform anti-falling device which comprises an eccentric wheel, a limiting block and a lifting connector, the lifting connector is provided with a strip-shaped hole extending in the moving direction of the lifting connector, the limiting block is inserted into the strip-shaped hole and is in sliding fit with the strip-shaped hole in the extending direction of the strip-shaped hole, and a reset spring for pulling down the lifting connector is connected between the lifting connector and a platform. The platform is matched with a sliding rail mechanism in sliding fit with the platform, the eccentric wheel is in transmission connection with the lifting connector and provided with a separation part and an extrusion part which are sequentially arranged in the circumferential direction, the extrusion part is extruded on the sliding rail mechanism after moving downwards along with the lifting connector and rotating of the eccentric wheel, and the separation part directly faces the sliding rail mechanism after moving upwards along with the lifting connector and rotating of the eccentric wheel. According to the anti-falling device, the lifting connector is arranged on the platform and arranged at an interval with the sliding rail mechanism, the action that the eccentric wheel abuts against the sliding rail mechanism can be rapidly completed through the lifting connector under the pulling action of the reset spring before the platform action, then it is guaranteed that the platform does not move downwards any more, and the delay of anti-falling work in the prior art is avoided.
本发明公开一种平台防坠落装置,包括偏心轮、限位块和上提接头,上提接头开设有沿其移动方向延伸的条形孔,限位块插接在条形孔中,并沿条形孔的延伸方向与其滑动配合,且上提接头与平台之间连接有下拉上提接头的复位弹簧,平台配套有与其滑动配合的滑轨机构,偏心轮与上提接头传动连接,且其设有沿周向依次排布的分离部和挤压部,且挤压部随上提接头下移及偏心轮转动后挤压在滑轨机构上,分离部随上提接头上移及偏心轮转动后正对滑轨机构,并与滑轨机构间隔设置,能够通过上提接头在复位弹簧的拉动作用下,先于平台动作,快速完成偏心轮抵紧滑轨机构的动作,进而保证平台不再下移,避免了现有技术中防坠工作的延后性。
Platform anti-falling device
一种平台防坠落装置
2023-08-29
Patent
Elektronische Ressource
Chinesisch
IPC: | B66B Aufzüge , ELEVATORS |