Maintain convenient embedded track structure

The utility model discloses a maintain convenient embedded track structure, prefabricated track board, track board adjustment unit and the spacing boss of track board on the embedded track structure includes track board base and sets up guidance tape base in orbit, prefabricated track board have two support rail groove s of setting on the top surface, and two horizontal symmetrical arrangement of support rail groove and longitudinal extension still are provided with half holding tank respectively on two terminal surfaces of prefabricated track board, track board adjustment unit sets up between prefabricated track board and track board base, and track board adjustment unit can realize the altitude mixture control to prefabricated track board, spacing boss of track board and track board base fixed connection be and be located between two blocks of adjacent prefabricated track boards, the spacing boss of track board with the holding tank that two and half holding tanks of two block adjacent prefabricated track b