Portable data collector

The invention provides a portable data collector. The portable data collector comprises a machine body; a collection plate is fixedly connected to the upper side of the machine body; two sides of the machine body are rotationally connected with rotating plates through first rotating shafts; each first rotating shaft is sleeved with a first torsional spring; one sides of the two rotating plates are jointly and fixedly connected with a cover plate; one side of the cover plate is fixedly connected with two connecting plates, and the two connecting plates are rotationally connected with connecting rods through second rotating shafts; the two second rotating shafts are both sleeved with second torsional springs; a moving block is arranged between the lower ends of the two connecting rods; the opposite sides of the two connecting rods are rotationally connected with the two sides of the moving block through third rotating shafts. A sponge plate is fixedly connected to the lower side of the moving block and correspo