| 摘要 |
FIELD: construction.SUBSTANCE: automatic gate comprises a stationary rack with bearing assemblies, shaft of flap, mounted with possibility of rotation in the bearing assemblies, flap connected with shaft, electric drive, coupling sleeve between the electric drive and shaft, flap positioning mechanism, comprising a rocker arm pivotally mounted on the axis perpendicular to the axis shaft, spring with tensioner and spring-loaded plunger. In accordance with the invention, the coupling sleeve between the electric drive and shaft of flap is designed in the form of hydraulic clutch, and positioning mechanism of the flap is designed in the form of disk, mounted on the shaft of the gate rigidly and coaxially to the shaft. In this case the disk is equipped with four retainers, mounted rotatively on four axes, which are rigidly secured in the disc and arranged parallel to the shaft axis with interval of 90°. Retainers interact with the spring-loaded plunger of rocker arm, which is mounted with possibility of free rotation on the axis, rigidly fastened at the end of rocker arm opposite from the swing axis and is pressed against the retainers by means of spring.EFFECT: simplifying design of positioning mechanism of automatic gate flap with electric drive, improving the accuracy of gate flap positioning in three positions, saving flap positioning when the power supply of gate is switched off.4 dwg |
