Underground pipe gallery is trough of belt built -in fitting for support

The utility model belongs to the technical field of the engineering construction and specifically relates to an underground pipe gallery is trough of belt built -in fitting for support, this built -in fitting of its characterized in that is become by crab -bolt, foraminiferous embedded plate, bolt protection bank of cells: foraminiferous embedded plate central authorities set up rectangular hole to along the banding bolt of rectangular hole bottom portion welding protection groove, the bolt puts into T type the bolt head in protecting the groove, the screw rod welding of crab -bolt is in foraminiferous embedded plate bottom four corners. This built -in fitting has improved efficiency of construction and quality greatly, provides the work efficiency to the later stage support mounting. The shortcoming of traditional built -in fitting way has been overcome to this built -in fitting, and it is high -efficient to have a construction, bolted connection characteristics such as simple and easy, later maintenance is