High-stability portal frame for rubber-tyred container crane

The utility model provides a high-stability portal frame for a rubber-tyred container crane, which comprises a pair of bottom plates, vertical plates symmetrically mounted at the tops of the pair of bottom plates, transverse plates arranged at the tops of the vertical plates, positioning plates arranged at two ends of the vertical plates, magnetic clamping plates symmetrically mounted on the bottom plates and the transverse plates and penetrating through the positioning plates, and cover plates mounted on the positioning plates. And magnets used for being connected with the magnetic clamping plates are arranged in the transverse plate and the base. The combined mounting structure is reasonable in structure, convenient to combine and mount, high in stability and convenient and fast to connect and fix. 本实用新型提供一种稳定性高的轮胎式集装箱起重机用龙门架，包括一对底板，一对底板顶部均对称安装有竖板，竖板顶部设置有横板，竖板两端均设置有定位板，底板和横板上均对称安装有贯穿定位板的磁性卡板，定位板上安装有盖板，横板和底座内部均设置有用于与磁性卡板进行连接的磁铁，本实用新型结构合理，便于组合安装，稳定性高，连接固定便捷。