Portable combined board

The utility model provides a portable composition board, and belongs to the technical field of biological sampling auxiliary equipment. The utility model comprises a middle plate, four side plates and four corner plates, the cross sections of the middle plate, the side plates and the corner plates are all rectangular, clamping grooves are formed in the side faces of the periphery of the middle plate, clamping blocks are arranged on one sides of the side plates, clamping grooves are formed in the two sides, adjacent to the clamping blocks, of the side plates, and clamping blocks are arranged on the two side faces, adjacent to the clamping blocks, of the corner plates. According to the utility model, through the detachable connection between the plates, the plates can be mutually connected to form a combined plate during field sampling, so that a sample can be simply treated in the field, the convenience of field sampling is improved, and the sampling efficiency and the sampling quality are improved. 本实用新型提供一种便