Suspended energy-saving, corrosion-preventing and wear-resisting sucker rod

The utility model discloses a suspended energy-saving, corrosion-preventing and wear-resisting sucker rod which comprises a sucker rod coupling, coupling protecting caps, a sucker rod body, a sucker rod protection body and a coupling joint. The sucker rod protection body adopts light wear-resisting and corrosion-resisting materials with lower density and wraps the sucker rod body, so that the sucker rod protection body and the sucker rod body form a whole, and during working, the whole is suspended in the well liquid by utilizing the buoyancy of the well liquid to achieve the aims of reducing consumption and saving energy. The form of whole wrapping stops the contact between the sucker rod body and the well liquid to prevent corrosion on the one hand and on the other hand prevents the sucker rod coupling from locally bearing forces and being worn as the outer diameter of the sucker rod protection body is the same as that of the sucker rod coupling, so that the sucker rod has the characteristics and functions