Brake mechanism, bait casting reel, and fishing tackle

A brake mechanism, comprising:

• a wire wheel;
• and
• a magnetic brake assembly, disposed at one end of the wire wheel, and comprising a magnet assembly and a centrifugal adjustment assembly, wherein the magnet assembly is configured to generate a magnetic induction line, and the centrifugal adjustment assembly is configured to automatically adjust a distance between the magnet assembly and an end surface of the wire wheel based on a rotational speed of the wire wheel to adjust a range of the wire wheel cutting the magnetic induction line, to automatically adjust a braking force;
• wherein the centrifugal adjustment assembly comprises an elastic member and a cam, the magnet assembly comprises a magnet base, a hollow magnet frame, and a magnet disposed on the magnet frame, at least one sliding groove is provided on a top surface of the magnet base, the cam is disposed in a lower middle part of the magnet base, and a convex part of the cam abuts against an inner wall of the magnet frame, an upper part of the magnet frame is movably disposed in the sliding groove through the elastic member, so that the magnet frame moves along the convex part of the cam under an action of an electromagnetic force or an elastic force of the elastic member when the wire wheel rotates, causing the magnet to move in a direction close to or away from the end surface of the wire wheel.