Adjustable nailless wheel chock

The utility model relates to a fixing device for railway transportation of wheel type equipment and crawler type equipment, and in particular relates to an adjustable nailless wheel chock. The adjustable nailless wheel chock comprises an anti-skidding seat, wherein two ends of a transverse beam are slidably inserted into the anti-skidding seat; the transverse beam is supported by four connecting rods on two sides; a pair of connecting plates is connected among the four connecting rods on the two sides; a screw rod is connected between the two connecting plates; a shovel type bottom chock comprises vertical plates on the two sides and a shovel plate which is connected between the front ends of the vertical plates on the two sides; the front ends of the vertical plates on the two sides are provided with inclined surfaces; and the shovel type bottom chock is in lap joint with the two outer parts of the anti-skidding seat through the vertical plates on the two sides. The adjustable nailless wheel chock can be use