Take flatcar of hidden infusion support

The utility model belongs to emergency call apparatus field, concretely relates to take flatcar of hidden infusion support. The utility model discloses the articulated axis limit steel pipe length direction long perpendicularly who has transfusion rod, transfusion rod's the articulated department of level in the steel pipe lumen of long limit, long limit steel pipe department sets up the notch andthe open slot of flute length direction and this length limit steel pipe length direction syntropy up, and the rotary drum department of corresponding guardrail sets up the cooperation groove of flute length direction and length limit steel pipe length direction syntropy, when the guardrail is in the protection state, stagger with the open slot each other in the cooperation groove, rotating and making the rotary drum department cooperation groove to rotate when aliging with the open slot notch when the guardrail, transfusion rod produces articulated action and cooperates groove and open slotnotch until showing, pipe