Fixing mechanism for vehicle biogas storage tank

The utility model discloses a vehicle biogas storage tank fixing mechanism which comprises a fixing groove and two clamping blocks sliding in the fixing groove, sliding grooves are formed in the innerwalls of the two sides of the fixing groove, sliding blocks in sliding fit with the sliding grooves are fixedly arranged at the two ends of the two clamping blocks, and connecting nuts are fixedly arranged in the middles of the two ends of the fixing groove. The utility model has the beneficial effects that the two connecting screws are rotated through the arranged rotating handle, one ends of the connecting screws can be driven to move under the thread fit of the connecting screws and the connecting nuts, and the other ends of the two clamping blocks are provided with the corresponding arc-shaped grooves, so that the two connecting screws can be driven to move through the rotation of the rotating handle. And the two clamping blocks can be driven to move transversely under the movable fitof the adapter block arra