Anti-off-line data acquisition device

The invention provides an anti-off-line data acquisition device. The data acquisition device comprises a device main body, the right side of the device main body is fixedly connected with a data lineinsertion end, the right side of the device main body is fixedly connected with a line clamping device through a fixed block, and the tops of the right sides of the front surface and the back surfaceof the device main body are fixedly connected with threaded cylinders. According to the anti-wire-off data acquisition device provided by the invention, the data wire can be clamped through the wire clamping device, so the data line is prevented from falling off in the moving process of the data collection device to cause data collection failure; the detachable rear cover can be selected accordingto use occasions; meanwhile, the rear cover can play a role in protecting the data line and the data line insertion end, the data line can be further clamped and fixed through the line clamp, the stability of the data line is further guaranteed, the whole device has good protection and stabilization functions on the data line, and the data line can be well prevented from being disengaged.