Car luggage rack boundary beam transports special utensil in batches

The utility model provides a car luggage rack boundary beam transports special utensil in batches, includes: two pedestals, distributions are used for inserting about beam hole of the subsidiary screwrod of boundary beam on the pedestal, the locking plate is decided in the installation on one of them pedestal, and the locking plate is moved in the installation on another pedestal, the locking plate of deciding radially stretch into about beam hole or have one section pitch arc blade that can get into the screw rod thread groove in restraint nose end mouth department with about beam hole overlap section, move the locking plate through the slide with the vertical syntropy of about beam hole assembly on the pedestal, have locking plate displacement to prescribe a limit to on the slide or onthe pedestal and stop the round pin or stop the position, move the locking plate and move to when prescribing a limit to the position, the subsidiary screw rod of boundary beam still can smoothly insert abouts beam hole, moves