Fitness chest expander convenient to disassemble

The utility model discloses a body-building chest expander convenient to dismantle, which comprises a tension component and a grip component, the tension component comprises two pull handles, lock catches and a tension spring, the lock catches are connected to two ends of the tension spring, the tension spring is symmetrically hooked between the two pull handles through the lock catches, and the grip component is connected with the tension spring through the lock catches. The grip strength assembly is installed on the inner side of the pull handle, the grip strength assembly comprises a grip strength handle and a grip strength spring, the grip strength handle is connected to the inner side of the pull handle through the grip strength spring, and the grip strength assembly further comprises a rod body assembly and a protection assembly; the pull rods convenient to disassemble and assemble are arranged on the pull handles at the two ends of the spring exerciser, when the spring exerciser is used for fitness tra