Summary
When the inner wall of the pump cylinder of the concrete pump truck is damaged, it should be taken out for repair immediately, or it should be turned around. In order to facilitate maintenance and replacement of the concrete cylinder, we can set a movable door cover at the bottom of the concrete hopper. The opening and closing of this movable door cover can be completed by the movement of the oil cylinder. At the same time, the concrete cylinder body can also be pulled out from this opening.