Novel epoxy steel bar straight thread sleeve connecting device

The utility model belongs to the technical field of steel bar construction, and relates to a novel epoxy steel bar straight thread sleeve connecting device which comprises a body. The body is of a cylindrical barrel structure. Two ports of the body are respectively provided with a trapezoidal horn mouth which diffuses from the inner wall of the body to the outer wall of the body; a wedge-shaped area formed among the outer side wall of the body, the port of the body and the horn mouth forms a guide groove; the trapezoidal horn mouth is symmetrical about the axial center line of the body; the diffusion angle alpha of the horn mouth is larger than 0 and smaller than or equal to 30 degrees. The end head of the body is easy to align with the interface, the surface coating of the reinforcing steel bar cannot be damaged, and the installation is convenient and reliable; and the joint of the epoxy steel bar and the sleeve can be secondarily coated, so that the sealing performance is good. 本实用新型属于钢筋施工技术领域，涉及一种新型环氧钢筋直螺纹