Adjustable parallelism brake device for brake pads

An adjustable parallelism brake device for brake pads, comprising:

• a pivotal arm, a main body connected to the pivotal arm, a driving disc, and an attached body, the main body fixedly connected to the attached body through connecting screws, the pivotal arm having one of two ends thereof connected to the main body via screws and adapted to be connected to a cable, another one of the two ends of the pivotal arm fixedly connected to the driving disc via screws, the driving disc having a flat bearing and a flat washer mounted thereto, the driving disc contacting against the main body through the flat washer and the flat bearing, a directional drive disc located below the driving disc, multiple adjustable screws threadedly extending through threaded holes on both sides of the directional drive disc, each adjustable screw has a head which supports a first friction pad by a first V-shaped spring, the attached body including multiple flat threaded columns, each flat threaded column includes a distal end which supports a second friction pad by a second V-shaped spring, the first friction pad and the second friction pad each having a hole defined in one side thereof, a pin passing through the hole of each of the first and second friction pads and being secured to the attached body.