Distance fixing device for aronia melanocarpa afforestation

The distance fixing device comprises telescopic rods, a distance fixing ruler, a rotating disc, a distance fixing needle and an ejection block, the telescopic rods are arranged at the two ends of the distance fixing ruler in a penetrating mode, a distance fixing sliding block is connected to the surface of the distance fixing ruler in a sliding mode, and a second control valve is connected to the surface of the distance fixing sliding block in a threaded mode. Through the arrangement of the rotating disc, the driving motor can drive the rotating disc to rotate, the first vibration contact on the surface of the rotating disc can be made to rotate, the first vibration contact rotates and can collide with the second vibration contact, and therefore the position of the sliding plate can be moved; and through the arranged reset springs, when the first vibration contact and the second vibration contact are separated, the sliding plate can be pulled back to the initial position through the elastic force between the