Auxiliary handbrake operating device

An auxiliary handbrake operating device, said auxiliary handbrake operating device positioned between a handbrake assembly and a normal handbrake operating device on a handle bar of a bicycle, said auxiliary handbrake operating device allowing a brake wire interconnecting said handbrake assembly and said normal handbrake operating device to pass through, an operating handle of said auxiliary handbrake operating device, when said operating handle is gripped, pushing a cable wrap around said brake wire between said auxiliary handbrake operating device and said handbrake assembly to force said handbrake assembly to brake said bicycle, said auxiliary handbrake operating device comprising:

• a positioning seat, said positioning seat comprising a lateral through hole for fitting said handle bar and a linear joining section, said joining section having a vertical pin hole at an end for pin-joining an operating handle, said joining section having lateral cable holes and a wire hole between said vertical pin hole and said lateral through hole so that a brake wire could pass through said joining section;
• and
• an operating handle, said operating handle having a vertical through hole at a corresponding location to said pin hole of said joining section so that a locking pin could pin-join said operating handle to said joining section through said vertical through hole and said pin hole of said joining section, said operating handle having a lateral bolt hole at an end screwed with a guiding tube;
• wherein said brake wire has an end fixedly connected to said handbrake assembly and has the other end passed through said guiding tube, said bolt hole, said cable holes, said wire hole, and fixedly connected to said normal handbrake operating device.