Gooseneck spare tire fixing device of low-flatbed semitrailer and semitrailer

The utility model provides a low flatbed semitrailer gooseneck spare tire fixing device which comprises a semitrailer gooseneck, a spare tire fixing support is arranged on the semitrailer gooseneck, a fixing bolt rod is vertically arranged on the spare tire fixing support, a spare tire pressing plate is movably arranged on the fixing bolt rod, and a pair of anti-rotating pins is arranged on the spare tire pressing plate. And a nut is arranged at the top of the fixed bolt rod. According to the gooseneck spare tire fixing device for the low-flatbed semitrailer, the spare tire fixing device is designed at the front end of the low-flatbed gooseneck longitudinal beam, so that a vehicle spare tire can be conveniently mounted and dismounted from the front of the semitrailer, and the loading space and the equipment space of the vehicle can be utilized to the maximum extent. The utility model further provides the semitrailer provided with the gooseneck spare tire fixing device of the low flatbed semitrailer, and the s