Automatic roadblock placing vehicle

The utility model discloses an automatic roadblock placing vehicle, which relates to the field of road maintenance, and comprises a vehicle plate, an alternating device, a lowering device, a reciprocating mechanism and a transmission component, the reciprocating swing of a swing plate can enable an upper baffle plate and a lower baffle plate to alternately move relatively, so that the function of lowering a single roadblock at intervals is realized; the transmission assembly converts rotation of the rotating shaft into rotation of the rotary disc in the reciprocating mechanism, on one hand, a driving actuator of the lowering device is omitted, and on the other hand, the placement distance of each roadblock can be effectively controlled; the upper baffle can separate the roadblock on the bottommost layer downwards while blocking the last but one roadblock, the situation that two roadblocks are difficult to separate when adjacent roadblocks are tightly attached is avoided, the alternating device is used in coop