Speed reducing and torque increasing device and electric nail gun thereof

The utility model relates to the field of electric tools, in particular to a speed reducing and torque increasing device and an electric nail gun thereof. The speed reducing and torque increasing device is used for being connected with a motor and a power output component of an electric nail gun and comprises an initial gear, a torque increasing gear and a torque increasing gear, the first speed reducing and torque increasing assembly is in gear transmission connection with the initial gear; one end of the second speed-reducing torque-increasing assembly is in transmission connection with the first speed-reducing torque-increasing assembly, and the other end of the second speed-reducing torque-increasing assembly is connected with a power output component; the at least one silencing gasket is arranged between the initial gear and the first speed reducing and torque increasing assembly, and/or is arranged between the first speed reducing and torque increasing assembly and the second speed reducing and torque i