Automatic door track with anti -disengaging structure

(B, ) the utility model provides an automatic door track with anti -disengaging structure which comprises groove on the track and groove under the track, on the track groove with the branch frid that has the horizontal direction under the track between the groove, divide the frid upper surface have with the groove structure that the groove suited on the track, divide the frid to have the extension section, the lower surface that divides the frid is the cusp, the groove has the ascending frid of vertical side on the track, the lower jaw position in groove has a round slide rail position under the track. The utility model discloses can effectively solve present automatic gantry crane spare exists stable safe problem. (B, )