How to realize the universal wheel car brake

The utility model describes a universal wheel with an all-round braking device, including a mounting top plate, a wave plate connected to the mounting top plate through a vertical shaft, a support frame fixedly connected to the upper part of the wave plate, and a wheel connected to the lower part of the support frame, the upper part of the vertical shaft is fixedly connected to the mounting top plate, and the lower part of the vertical shaft rotates in conjunction with an axle mounting hole provided on the wave plate; and a brake device is included for braking the wheel. There is also a brake device for braking the wheel, and the brake device includes a brake disc with a plurality of locking teeth fixedly disposed on the vertical shaft and located in the lower part of the wave plate, a brake bracket connected to a support frame and provided with a first rotary axis, a locking pedal rotationally connected to the brake bracket through a second rotary axis, an unlocking pedal rotationally connected to the locking pedal through a third rotary axis, and a brake shrapnel rotationally connected to the unlocking pedal through a fourth rotary axis at one end, with the second rotary axis and the third rotary axis rotating together with the locking pedal. The second rotary axis and the third rotary axis are located in the upper part of the brake shrapnel, the third rotary axis is located between the second rotary axis and the fourth rotary axis, the brake shrapnel is provided with a groove, the first rotary axis is located in the lower part of the brake shrapnel and is located in the groove, the locking portion is provided in one end of the brake shrapnel, the other end of the brake shrapnel is provided with an extension portion, and there is at least one locking hole provided on the extension portion, the locking hole is matched with a locking tooth.