Device for locating shackle lock on bicycle frame

A device for locating a shackle lock on a bicycle frame, said device comprising:

• a first member having an axial hole and opposing side walls defining a slot penetrating a side of said axial hole, said first member having a C-shaped cross section such that said axial hole can be fitted over a bicycle frame tube and that said first member can be adjusted in the angular range of 360 degrees;
• a second member having a protruded portion and a hooked portion;
• a locking member of a long rod-shaped construction and disposed in such a manner that said locking member fastens said second member with said first member by penetrating said second member and each of said opposing side walls of said slot of said first member along a direction perpendicular to a center axis of said axial hole of said first member, said second member capable of being rotated on said locking member in a range of 360 degrees, said second member capable of being tightened to said first member by said locking member to locate securely said first member and said second member on said bicycle frame tube;
• and
• a third member adapted to be fastened with one end of a shackle of a shackle lock and provided with a connection hole and a recessed portion, said connection hole being engageable with said protruded portion of said second member, and said recessed portion being engageable with said hooked portion of said second member.