Mutual track structure in activity stand lower part

The utility model discloses a mutual track structure in activity stand lower part, including a plurality of grades of direction formula walking beam, every direction formula walking beam rear end all sets up a spacing hasp piece, and direction formula walking beam installs the platform support in the rear end, direction formula walking beam front end is provided with spacing fixed lockpin and retrieves the baffle, every direction formula walking beam left side all is equipped with the spout, direction formula walking beam installs the gyro wheel in the bottom, insert in another direction formula walking beam's the spout direction formula walking beam right side lower part, one deck direction formula walking beam forms the unsmooth structure of detaining mutually with back one deck direction formula walking beam before the stand, from the parallel walking as having guaranteed walking beam, after the design assigned position is walked to the stand, the spacing fixed lockpin of spacing hasp piece grasping, from