Anti-seismic connecting flange

The utility model relates to the technical field of petroleum equipment. The utility model relates to a flange, in particular to an anti-seismic connecting flange. Wherein the flange and the limitingplates are arranged at one end of the pipe body. A plurality of through holes are formed in the flange in the axial direction of the flange. One end of each of the plurality of limiting plates is arranged on the flange; a fixing mechanism for fixing the limiting plate on the flange is arranged between the other end of the limiting plate and the flange; when the anti-seismic connecting flange is used, the limiting plate is arranged on one side of the flange, the limiting plate plays a role in limiting the screws in the through holes, and the phenomenon that the screws on the flange get loose due to vibration can be prevented. 本实用新型涉及石油设备技术领域，尤其是涉及一种抗震连接法兰，包括设置在管体一端的凸缘和若干限位板，所述凸缘上沿其轴向开设有若干通孔，若干所述限位板的一端设置在凸缘上，所述限位板的另一端与凸缘之间设置有用于将限位板固定在凸缘上的固定机构，当限位板固定在凸缘上时，实现将限位板设置在通孔的一端，本实用新型抗震连接法兰在使用时，通过在凸缘的一侧设置限位板，限位板起到对通孔内的螺钉起到限位作