Portable mouse

The utility model discloses a portable mouse, its characterized in that first half and latter half of is divided into to the shell, and circuit module, gyro wheel integration be at the first half, the latter half of casing that is by upper plate, left side board, right side board and posterior lateral plate enclose, and latter half of and first half are by the upset structrual joint, the upset member is equipped with a rotary rod, and rotary rod one end hinges is close to first half border position at the vertical central line in latter half of upper plate lower part, and the rotary rod other end is connected with an upset pole, and the upset pole be hollow structure, and upset pole and connected with rotary rod one end are equipped with the adduction half the circumference of the sleeve where it joins the shoulder, and the upset pole other end is connected with bilateral symmetry and trip shaft its axial vertical, and the empty position is equipped with the spring of an end pressure on the half the circumference of the sleeve where it joins the shoulder in the upset pole, passes the screw rod that the spring was equipped with the screw in rotary rod, and spiral shell wand cap pressure is on the spring other end, the utility model discloses can cover latter half of upset on the first half when carrying, the volume reduces greatly, and simultaneously latter half of all right safeguard button and gyro wheel are avoided the extrusion and is damaged.