Tank inspection device for normal-pressure tank car

The utility model relates to a normal pressure tank car tank body inspection device which comprises first springs symmetrically arranged at the top and the bottom in a tank body, one end of each first spring is fixedly connected with a transverse plate, the transverse plate is provided with a caliper, the two ends of the transverse plate are respectively connected with a vertical rod in a penetrating mode, and the bottom of each vertical rod is fixedly connected with the tank body. A clamping device is further arranged at the end of the transverse plate, a baffle is connected to the side wall in the tank body through a second spring, a fixing rod is installed on the baffle, and one-way limiting devices detachably connected with a caliper are arranged at the top and the bottom of the fixing rod. Compared with the prior art, the device can detect the impact force applied to the interior of the tank body in the running and conveying process of the tank car, and meanwhile, the repeated usability of the device can