Control valve, base station waterway system and cleaning system

The utility model discloses a control valve, base station waterway system and cleaning system.The control valve comprises a valve body and a valve element assembly, the valve body is provided with a first cavity, a water passing channel, a water inlet hole and a water outlet hole, and the water inlet hole is communicated with the first cavity; the valve element assembly is movably connected with the valve body, a second cavity is defined by the valve element and the valve body, the water outlet hole communicates with the second cavity, and the first cavity communicates with the second cavity through the water channel. In the initial state, the first cavity and the water passing channel are blocked by the valve element assembly, and the valve element assembly moves along with the pressure change in the second cavity so as to open or close the water passing channel. According to the technical scheme of the utility model, the use of control lines is reduced, the cost of the base station waterway system is reduce