Foldable treadmill

A foldable treadmill, comprising:

• a base frame;
• a front frame having a front end pivotally mounted on a first end of the base frame;
• a rear frame having a front end pivotally mounted on a rear end of the front frame;
• a movable frame having a first end pivotally mounted on a mediate portion of the front frame between the front end and the rear end of the front frame and a second end slidably mounted on a second end of the base frame;
• a telescopically retractable driver mounted on the front frame and provided with a retractable inner tube which can extend outwardly from the driver;
• a connecting bracket having a first end secured on the movable frame to move and pivot the movable frame and a second end pivotally mounted on the inner tube of the driver;
• a motor mounted on the front frame to drive and move the inner tube of the driver;
• a telescopically retractable positioning mechanism pivotally mounted between the movable frame and the rear frame and movable by a pivot action of the rear frame;
• a locking mechanism mounted on the rear frame and releasably locked onto the positioning mechanism to releasably lock the positioning mechanism;
• wherein
• the movable frame is pivotable relative to the base frame to drive the front end of the front frame to pivot relative to the base frame so as to move the rear end of the front frame relative to the base frame and to move the front end of the rear frame relative to the base frame;
• the movable frame is movable forward and backward relative to the base frame.