Dispensing head for an aerosol container provided with a valve equipped with a valve stem, the dispensing head comprising - a base ring, - a transfer conduit provided with a tip intended to cooperate with the stem of a valve when the dispensing head is mounted on an aerosol container provided with such a valve, - a push button rotatable relative to the base ring about an axis of rotation passing through the tip between a locked position and an unlocked position, and - blocking means movable between a blocking position in which the tip cannot cooperate with the valve stem and an unblocking position in which the tip can cooperate with the valve stem to open the valve, the push button being movable relative to the base ring between a high position in which the tip of the transfer conduit is at a distance from the valve stem and a low position in which the tip cooperates with the stem to open the valve, characterized in that the blocking means comprise - a blocking member movable relative to the base ring and which is fixed to the base ring via a hinge forming an axis of rotation parallel to the axis of rotation of the push button relative to the base ring, which blocking member can pivote between a blocking position and an unblocking position, the blocking member being provided with a bearing surface, which bearing surface is placed in the movement path of the tip of the transfer conduit towards the valve stem when the blocking member is in the blocking position, and which bearing surface is outside the movement path of the tip towards the valve stem when the blocking member is in the unblocking position, and - guiding means for placing the blocking member in the blocking position when the push button is in the locked position and for placing the blocking member in the unblocking position when the push button is in the unlocked position. - a base ring, - a transfer conduit provided with a tip intended to cooperate with the stem of a valve when the dispensing head is mounted on an aerosol container provided with such a valve, - a push button rotatable relative to the base ring about an axis of rotation passing through the tip between a locked position and an unlocked position, and - blocking means movable between a blocking position in which the tip cannot cooperate with the valve stem and an unblocking position in which the tip can cooperate with the valve stem to open the valve, the push button being movable relative to the base ring between a high position in which the tip of the transfer conduit is at a distance from the valve stem and a low position in which the tip cooperates with the stem to open the valve, characterized in that the blocking means comprise - a blocking member movable relative to the base ring and which is fixed to the base ring via a hinge forming an axis of rotation parallel to the axis of rotation of the push button relative to the base ring, which blocking member can pivote between a blocking position and an unblocking position, the blocking member being provided with a bearing surface, which bearing surface is placed in the movement path of the tip of the transfer conduit towards the valve stem when the blocking member is in the blocking position, and which bearing surface is outside the movement path of the tip towards the valve stem when the blocking member is in the unblocking position, and - guiding means for placing the blocking member in the blocking position when the push button is in the locked position and for placing the blocking member in the unblocking position when the push button is in the unlocked position.