Insulating tube connection structure

The utility model discloses an insulating tube connection structure, including the insulating tube, the insulating tube comprises steel pipe (3), heat preservation (2) and protective layer (1), and steel pipe (3) welding of two insulating tubes is in the same place, and outside suit electrocast sleeve (4) are seted up on electrocast sleeve (4) porose (5). The utility model discloses an electrocast sleeve replaces pyrocondensation area end -blocking, and the construction is simple swift to set up on electrocast sleeve porose, the inside fill insulant material of clearing hole. Adopting this connection structure, can improving the connection efficiency of insulating tube, the roughness also can be guaranteed. 本实用新型公开了种保温管连接结构，包括保温管，保温管由钢管（3）、保温层（2）和保护层（1）组成，两根保温管的钢管（3）焊接在起，外面套装电熔套筒（4），电熔套筒（4）上开设有孔（5）。本实用新型采用电熔套筒取代热缩带封端，施工简单快捷，并且在电熔套筒上开设有孔，通过孔向内填充保温材料。采用本连接结构，可以提高保温管的连接效率，平整度也可以保证。