Thermal insulation pipe production device

The utility model relates to the field of thermal insulation pipe production, in particular to a thermal insulation pipe production device, and aims to solve the technical problems that in the prior art, an inner pipe and an outer pipe are sleeved firstly, and then polyurethane is injected, so that the mode is easy to cause uneven injection, large bubbles are reserved locally, and the thermal insulation effect is poor. The two parallel rotating rollers rotate in the same direction and are rotationally connected to the bearing seat, the bearing seat is connected to the bottom plate, the inner pipe is located between the upper portions of the two rotating rollers, a conveying device is arranged at the tail ends of the rotating rollers and can clamp the inner pipe and convey the inner pipe in the axial direction, a bearing piece is arranged behind the conveying device, and an outer pipe is borne on the upper portion of the bearing piece. The supported outer pipe and the supported inner pipe are concentrically ar