Tire pressure indicator

A tire pressure indicator having a hollow cylindrical body formed with a closed side at one end thereof and an open side at another end thereof for being positioned on a tire valve of an associated tire, comprising:

• a pressure-indicating mechanism having a visible tire-deflated condition and a tire-inflated condition;
• a sleeve member with a closed side located at a lower end thereof movably disposed in the hollow cylindrical body with a portion of said pressure-indicating mechanism being received therein;
• a piston means movably disposed in an inner chamber of said pressure-indicating mechanism so as to be controlled by the tire pressure of an associated tire for operating said pressure-indicating mechanism to indicate the tire-deflated and tire-inflated conditions in conjunction with the tire pressure of the associated tire;
• a pressure sensing means fixedly provided under said piston means for being detachably connected to the time valve of the associated tire to monitor and indicate the pressure of the associated tire;
• and
• a supporting base, having an air chamber formed therein with internal and external threads provided therearound, screw-connected to the open side of the hollow cylindrical body for being detachably connected to the tire valve of the associated tire;
• whereby, with said tire pressure indicator being detachably connected to an associated tire, the pressure of the associated tire can be monitored and indicated via the pressure-indicating mechanism without incurring any air pressure leakage therefrom even when the hollow cylindrical body is damaged or loosened.