| abstract |
The utility model relates to a kind of rectangular toe joint touch flange, comprise upper flange, lower flange and wave tooth spacer, the profile of tooth of described wave tooth spacer is rectangular, the sealing surface of described upper flange and lower flange is respectively equipped with the rectangular serrate slot matched with the upper surface of wave tooth spacer and lower surface, the sealing surface of described upper flange and lower flange does not arrange boss.This flange effectively can reduce moment of flexure and stress and pad not easily offsets, good airproof performance, long working life. |