Vehicle-mounted omnidirectional antenna take-up and pay-off mechanism

The utility model relates to a vehicle-mounted omnidirectional antenna take-up and pay-off mechanism used for realizing the simultaneous taking up of a plurality of antennas and applied to the large-scale vehicle-mounted communication equipment. The omnidirectional antenna take-up and pay-off mechanism comprises a base; a motor is mounted in the base and can drive a screw rod above the base to rotate; a nut matched with the screw rod can be driven to vertically move due to rotation of the screw rod; a movable base is connected to the nut; an upper connecting base and a lower connecting base are arranged at the periphery of the root of the screw rod; a plurality of swing links are uniformly arranged at the periphery of each connecting base; the rear ends of the swing links are hinged on the connecting bases; the front ends of two swing links positioned in the position at the same angle on the upper and the lower connecting bases are connected through a connecting rod; the connecting rod is hinged with the two