Museum transport case capable of being adjusted

The utility model relates to the technical field of transport cases, and discloses an adjustable museum transport case which comprises a case body and a trough plate, a clamping buffer mechanism is arranged in the case body, and a longitudinal buffer mechanism is arranged at the top end of the inner wall of the case body; the clamping buffering mechanism comprises a handle, a threaded rod, a movable plate, a second sliding plate, a connecting rod, an abutting plate, a first fixing block, a sliding block, a first folding rod, a second folding rod, a short rod, a spring and a second fixing block, and the longitudinal buffering mechanism comprises a sleeve, a sleeve rod, a reset spring, a protruding block, a limiting plate and a rotating plate. Kinetic energy of the groove plate can be converted into elastic potential energy of the spring under the combined action of all the mechanisms, then a buffering effect is achieved on the cultural relics clamped on the groove plate, the probability that the cultural relic