Collision detection mechanism and robot

The invention belongs to the technical field of robot design, and particularly relates to a collision detection mechanism and a robot. The collision detection mechanism comprises a collision plate connected to a robot body of the robot; the base is used for being installed on one of the collision plate and a machine body of the robot, and the base is provided with a connecting part; the sleeve shell is provided with a connecting column, and the connecting column is movably installed in the connecting part; one end of the swing rod assembly extends to the base, the other end of the swing rod assembly penetrates out of the sleeve shell and is connected to the other one of the collision plate and a machine body of the robot, and the swing rod assembly generates relative displacement with the base after the collision plate collides with an obstacle; the reset device is used for providing reset elastic force for the swing rod assembly, so that the swing rod assembly resets after moving relative to the base; the de