Automatic drinking water device for animal

The new utility model relates to a watering trough appropriate for the poultry and livestock breeding. It comprises of a water vessel (1) with stand (4). A valve (3) is installed in the middle of the stand (4). One end of the valve (3) is connected to the water supply pipe (6); its another end is connected to the water vessel (1). The utility model also includes a set of triggering mechanism that can control the switch of the valve (3). It is characterized in that: heat preservation and hot mixing facilities are installed on the external surface of the aforesaid water vessel (1), inside the water vessel (1), on the external surface of the stand (4), inside the stand (4), on the external surface of or inside the water supply pipeline (6) besides the stand (4), so that this new utility model can work normally at outdoor in winter, which ensures convenient application and protects the facility from the damage of icing.