Hand hold type palpitation detecting device used on body building apparatus

The utility model relates to a hand hold type palpitation detecting device used on a body building apparatus. The utility model is characterized in that two semi-tubular sleeve joint components are clapped on a rod body of the body building apparatus, wherein, one sleeve joint component is provided with two bearing grooves which are positioned at the outer surface, and a scarfing hole seat which is embedded and clamped in a through hole of the rod body and is communicated with the bearing grooves. Two conduction components are respectively arranged in the two bearing grooves. Each conduction component is provided with an arc-shaped contact position and an output position which is connected with an instrument control circuit. Two ring-shaped induction sleeve rings are respectively arranged at both sides of the sleeve joint components and are abutted on the contact position, so that the contact position can deform. The purposes of favorable conduction effect, favorable hold feeling, no limit of the induction direction, etc. can be reached by the ring-shaped induction sleeve rings.