Differential locking mechanism

A differential locking mechanism, comprising:

• a differential mechanism;
• and
• a locking mechanism;
• the differential mechanism comprising a driven gear, a shell, a half shaft, a half-shaft gear, a planetary gear and a rotating shaft;
• one end of the shell being fixedly provided with the driven gear, and each end of the shell being respectively provided with a half shaft in a rotating way;
• one end of each of the two half shafts, facing the inside of the shell, being fixedly provided with the half-shaft gear;
• the rotating shaft being rotationally and symmetrically arranged on the shell;
• the rotating shaft being rotatably connected with the shell, pointing to an axial line of the shell and being perpendicularly intersected with the axial line of the shell;
• one end of the rotating shaft, facing inside of the shell, being fixedly provided with a planetary gear;
• the planetary gear being meshed with two half-shaft gears;
• and the other end of the rotating shaft, facing outside of the differential case, being fixedly provided with a gear A;
• the locking mechanism comprising a sleeve, a gear A, a cylindrical gear, a locking piece B, a locking piece C, a connecting piece D, a shifting fork and a fixing piece;
• one end of the shell being fixedly provided with the sleeve;
• the sleeve being sleeved on the half shaft, and the sleeve being rotatably connected with the half shaft;
• the cylindrical gear being sleeved on one side of the sleeve which is close to the half-shaft gear, the cylindrical gear being rotatably connected with the sleeve, one toothed end of the cylindrical gear being meshed with the gear A, the other end of the cylindrical gear being fixedly connected with the locking piece B;
• the locking piece B being sleeved on the sleeve, and the locking piece B being rotatably connected with the sleeve;
• the locking piece C being positioned to be opposite with the locking piece B and locked by the locking piece B;
• the connecting piece D being sleeved on the sleeve and combined with the sleeve to rotate together with the sleeve, and the connecting piece D being configured for connecting the locking piece C and the sleeve;
• the shifting fork being movably connected with the locking piece C, and capable of pushing the locking piece C to be engaged with the locking piece B to complete the locking process;
• the fixing piece being arranged between the locking piece B and the connecting piece D, and the fixing piece being fixedly connected with the sleeve.