Bidirectional human body body-building stretcher

The utility model provides a bidirectional stretching implement used for the body-building of human bodies. The basic structure of the utility model comprises a bedstead, bed legs and a bedplate, and the utility model is characterized in that the bedstead is composed of a middle fixing bedstead and telescopic brackets arranged on both sides of the bedstead; wherein, streching toothed racks are respectively arranged below the telescopic brackets which are arranged on the both sides of the bedstead, and a streching handle and a reversing handle are arranged on both sides of the middle fixing bedstead. A traction control box is arranged below the middle fixing bedstead and comprises a streching gear which is arranged on the same shaft as the streching handle, and the streching gear can be meshed with the double side streching toothed racks. The traction and streching handle and the reversing handle of the utility model are arranged on the both sides of the middle fixing bedstead, and single or bidirectional stre