The utility model relates to the field of brakes of automobiles, and discloses a
disc brake convenient for mounting and replacing a friction block, which comprises a
brake caliper main body, the friction block and a fixing mechanism, the
brake caliper comprises a
brake caliper body, connecting mounting seats are arranged on the brake caliper body, mounting grooves are formed in the two mounting seats, mounting plates are arranged in the two mounting grooves, friction blocks are fixedly connected to one sides of the two mounting plates, fixing mechanisms are arranged on the two mounting seats, and the two fixing mechanisms are connected with the two mounting plates correspondingly. And the fixing mechanism comprises a ball body, a U-shaped plate, a spring, a
liquid storage tank, a movable plate and a
threaded rod. Compared with the prior art, the brake has the advantages that the friction block can be quickly mounted and dismounted without external tools through cooperation of all the components, convenience and efficiency are improved, the structure is simple, operation is easy, and the use effect of the brake is effectively improved.