Automatic disinfection system for direct drinking water equipment

The utility model provides an automatic disinfection system for direct drinking water equipment, which comprises a medicine inlet pipeline connected with a water inlet pipeline in parallel and a branch drainage pipeline connected to a water outlet pipeline of the direct drinking water equipment, and the medicine inlet pipeline is provided with a medicine storage bottle, a dosing metering pump and a first one-way valve which are connected in sequence. The branch drainage pipeline is provided with a drainage valve, the dosing metering pump and the drainage valve are electrically connected with the PLC respectively and used for receiving instructions of the PLC to act, and the PLC is connected with the touch display screen and used for displaying the state of the direct drinking water equipment and conducting instruction operation. The device is simple in structure and reasonable in design, and medicament is added to the water inlet of the direct water dispenser regularly and quantitatively by the automatic cont