Vehicle box expansion prevention device

The utility model provides a vehicle box expansion prevention device which comprises a connecting steel pipe, connecting plates are arranged at the two ends of the connecting steel pipe, connecting grooves are formed in the sides, away from the connecting steel pipe, of the connecting plates, the connecting plates are connected with the connecting grooves through bolts, and the sides, away from the connecting plates, of the connecting grooves are welded to side plates of a container. The side plate is simple in structure and convenient to install, the deformed connecting steel pipe is convenient to replace, the side plate does not need to be drilled, and the service life of the side plate is prolonged. 本实用新型提出了一种车辆防涨箱装置，包括连接钢管，连接钢管的两端均设置有连接板，连接板远离连接钢管的一侧设置有连接槽，连接板和连接槽通过螺栓相连，连接槽远离连接板的一侧与货箱的侧板焊接相连。本实用新型结构简单，且便于安装，既便于更换变形的连接钢管，且不用对侧板进行钻孔，提高了侧板的使用寿命。