Safety braking device for elevator car

The utility model discloses a safety braking device for an elevator car. The safety braking device for the elevator car comprises four groups of safety gears and a fixing rack, wherein the left side of the fixing rack is provided with two groups of safety gears which are opposite to two guide rails arranged at the left side of the elevator car, and the two groups of safety gears arranged at the left side of the fixing rack are connected by a first handle shaft; the right side of the fixing rack is provided with two groups of safety gears which are opposite to two guide rails arranged at the right side of the elevator car, and the two groups of safety gears arranged at the right side of the fixing rack are connected by a second handle shaft; and at least one group of connecting rod mechanisms capable of allowing the two handle shafts to synchronously and reversely rotate is arranged between the first handle shaft and the second handle shaft, and a rope head handle connected with a speed controller in an elevat