螺旋口玻璃鋼管道口連接螺紋本實用新型涉及一種玻璃鋼管道的管口連接螺紋，屬于玻璃鋼管道技術領域。 The utility model relates to a glass pipe connecting thread spout, belonging to the glass pipe technology. 該玻璃鋼管道的管口連接螺紋包括螺距控制項、牙頂圓半徑控制項、牙型高控制項、牙型角控制項、牙根圓半徑控制項及錐度控制項，所述螺距為6.30mm～6.40mm，所述牙頂圓半徑為1.49mm～1.51mm，所述牙型高為1.890mm～1.900mm，所述牙型角為44°～46°，所述牙根圓半徑為1.44mm～1.46mm，所述錐度為1：（27～29）。 

The glass pipe connecting thread spout controls including pitch, tooth tip circle radius control, high control tooth type, tooth type angle control, root radius controls and taper controls the pitch of 6.30mm ~ 6.40 mm, the tooth tip circle radius of 1.49mm ~ 1.51mm, the tooth-height 1.890mm ~ 1.900mm, the tooth type angle of 44 ° ~ 46 °, the root radius of 1.44mm ~ 1.46mm , the taper of 1: (27 ~ 29). 優(yōu)選方案螺距為6.35mm，牙頂圓半徑為1.50mm，牙型高為1.895mm，牙型角為45°，牙根圓半徑為1.45mm，錐度為1：28。 Preferred embodiment of the pitch of 6.35mm, tooth tip circle radius of 1.50m28。 Preferred embodiment of the pitch of 6.35mm, tooth tip circle radius of 1.50mm, tooth-height of 1.895mm, tooth-angle is 45 °, the root circle radius of 1.45mm, taper 1:28. 該螺紋根部強度高、螺紋牙粗、螺紋錐度小、密封性能好且易于安裝。 The high strength thread root, coarse thread, thread taper, sealing performance and easy to install.