Protective mechanism for padlock

A protective mechanism for a padlock, comprising:

• a casing for enclosing a body of the padlock, the casing including top and bottom connecting members;
• a cover formed at the top of the casing for being connected to the top connecting member by soldering, the cover comprising two spaced holes;
• a base formed at the bottom of the casing for being connected to the bottom connecting member by soldering so that the cover, the base, and the casing are adapted to enclose the body of the padlock, the base comprising an opening having an annular, downwardly extended flange for receiving a keyhole of the padlock, and an extension member hingedly coupled to one side of the base, the extension member including a recessed enlargement at one open end so that a pivotal movement of the extension member toward the base will snap the enlargement into and seal the opening;
• and
• two flexible sleeves disposed in respective ones of the holes of the cover wherein a bent link of the padlock is sealed by the sleeves when the link is locked in the holes of the cover and two top second holes of the padlock, and the sleeves are secured between the cover and the top connecting member.