Multi-stage damping low-noise reversing valve

The invention discloses a multi-stage damping low-noise reversing valve. The reversing valve comprises a valve body, a valve sleeve embedded in the valve body, a valve element embedded in the valve sleeve, control damping screws and a main damping screw, and the control damping screws and the main damping screw are arranged on the valve body. According to the reversing valve, the flow of a control cavity can be adjusted through replacement of the control damping screws of first throttling holes of different sizes according to different requirements, for example, the reversing time of the reversing valve is controlled to be prolonged, namely the reversing speed of the valve element is controlled to be reduced, and thus the reversing impact noise of the reversing valve can be reduced; according to the main damping screw, multiple honeycomb-shaped second throttling holes are formed, the contact surface of the throttling area where pressure oil flows through a valve port can be increased, the fluid friction energ