Portable steering wheel heart rate monitoring device

The portable steering wheel heart rate monitoring device comprises a single chip microcomputer, a photoelectric heart rate sensor 3, a containing box, a spring and a display screen, a first arc-shaped clamping block and a second arc-shaped clamping block are correspondingly arranged on the outer side of a steering wheel in a sleeved mode, and then a clamping vertical block is inserted into a clamping through hole to be connected with the clamping through hole in a clamped mode; through joint cooperation of a second hinge seat, a connecting transverse plate, a clamping piece, a clamping vertical block, a first fixing transverse plate, a clamping through hole, a spring and a second fixing transverse plate, and meanwhile, the spring is stretched and tensioned, so that a first arc-shaped clamping block and a second arc-shaped clamping block are jointly clamped and fixed to the steering wheel; the monitoring device is arranged on the steering wheel, so that a person can conveniently install the monitoring device o