Line detection device

The utility model discloses a line detection device, and relates to the line detection device technology field, the line detection device comprises a detection device body, a protection mechanism comprises a mounting plate, a rotating shaft, a protection plate, a fixing block, a chute, a spring and a baffle plate, through the protection plate and the cooperation baffle plate, when the protection plate is used, the baffle plate is pulled to make the baffle plate far away from the protection plate, and the detection device body is protected. When the device is not used, a baffle is pulled to enable a spring to be stretched, the protection plate is rotated to enable one end of the protection plate to be clamped outside a fixing block at the moment, the baffle is loosened at the moment, the baffle moves under the action of the spring, the operation screen can be operated, and the detection device can be used. At the moment, the baffle is located on the upper surface of one end of the protection plate to fix the p