Toilet brush with brush head convenient to replace and toilet brush suite

The toilet brush with the brush head convenient to replace comprises a handle and the brush head, the handle and the brush head are detachably connected, a clamping device is arranged at the bottom of the handle, a protrusion matched with the clamping device is arranged on the brush head, and the clamping device can be opened and closed and clamp the protrusion. The bottom of the handle is open, the handle is hollow, the clamping device can longitudinally slide in the handle, when the clamping device slides downwards, the clamping device is opened, and otherwise, the clamping device is closed; the toilet brush is more convenient to assemble; when the handle is placed in the second storage cavity, only the handle needs to be slightly moved downwards, the handle drives the transmission rod to rotate, the transmission rod drives the connecting rod to move upwards and drives the abutting block to abut against the hinge block, then the upper cover rotates to close the box body, meanwhile, when the handle is taken