Water supply device and water supply system

The utility model discloses a water supply device and a water supply system, the water supply device comprises a forward power supply input line, a reverse power supply input line, a time control module, a first relay module and an electric valve assembly, the time control module is used for outputting a first water supply control signal according to a preset time length; the first relay module is used for amplifying the first water supply control signal and then outputting the first water supply control signal as an electric valve control signal, and the electric valve assembly is used for being switched on or switched off according to the electric valve control signal so as to control stopping or starting of the watering process. The water supply device is used for solving the technical problem that the distance between an electromagnetic valve and a time controller in an existing water supply device is limited. 本实用新型公开一种供水装置以及供水系统，供水装置包括正向电源输入线、反向电源输入线、时间控制模块、第一继电模块以及电动阀组件，其中，时间控制模块用于根据预设的时间长度输出第一供水控制信号，第一