Dead-corner-free liquid nitrogen tank falling specimen detecting and fishing device

The utility model discloses a dead-corner-free liquid nitrogen container falling specimen detecting and fishing device. The dead-corner-free liquid nitrogen container falling specimen detecting and fishing device is composed of a handheld controller, a fixed clamping device, a rotary clamping device, a sleeve, a linkage rod and a fixing rod. Wherein one end of the handheld controller is connected with one end of the rotary clamp holder through the linkage rod, the sleeve is sleeved on the outer side of the linkage rod, one end of the fixed clamp holder is connected with the lower end of the sleeve through the fixed rod, and the linkage rod and the fixed rod are foldable rods. According to the dead-corner-free liquid nitrogen container falling specimen detecting and fishing device, the dead-corner-free liquid nitrogen container falling specimen detecting and fishing function is achieved, the detection range can cover all the areas of the bottom of a liquid nitrogen container, and the falling specimen is accura