Water jet-cooling controlling device for automotive brake and tyre

The utility model relates to a water jet cooling controlling device for an automotive brake and a tyre. An elastic film (3) is arranged in a basal body (2). A control push rod (9) is arranged in an upper cover (4). The elastic film is matched with a control push rod. A control power supply is provided with a timer and a switch to control an electromagnetic valve to discharge water. The water jet cooling controlling device for an automotive brake and a tyre has the advantages of reasonable and compact structural design, prompting function with no water, power cutting function with no water, water timing cutting function, water discharging indicating function, etc. The water jet cooling controlling device for an automotive brake and a tyre is easy to observe, operate and control. The utility model provides an effective measure to cool a brake drum and a tyre, and enhances the safety of a travelling automobile.