Pump pipe plugging mechanism of automobile pump

The utility model discloses a pump pipe plugging mechanism of an automobile pump. The pump pipe plugging mechanism comprises a steel pipe, wherein a radial groove which is matched with a plugging plate is formed in the pipe wall of the steel pipe, the plugging plate is provided with an inner end plate and an outer end plate, the inner end plate is an arc-shaped plate matched with a steel pipe hole wall, the outer end plate extends out of a steel pipe groove opening, the radial depth of the radial groove in the pipe wall is not smaller than the radius of a pipe orifice of the steel pipe, two supporting seats are axially arranged at the upper edge of the outer peripheral surface of the steel pipe, a guiding rod is fit in holes of the two supporting seats in a sliding manner, and holes opposite to the holes of the supporting seats are formed in the outer end plate of the plugging plate and are fit with the guiding rod in the sliding manner. The pump pipe plugging mechanism has the remarkable advantage that materials cannot flow out during the movement of a pump pipe.