Kitchen and bath brush with brush head convenient to disassemble and assemble

The kitchen and bath brush with the brush head convenient to disassemble and assemble comprises a connecting block, two connecting grooves are formed in the bottom of the connecting block, clamping grooves are formed in the two ends of each connecting groove, clamping devices are movably connected to the interiors of the two connecting grooves, fixing plates are arranged at the bottoms of the two clamping devices, and a plurality of brushes are arranged at the bottoms of the fixing plates. The hair brush has the advantages that when a user needs to detach the hair brush, the user can press the clamping block to enable the clamping block to be stressed, the force is transmitted to the sliding block after the clamping block is stressed, the force of the sliding block is transmitted to the spring to enable the spring to be stressed and contracted, then the sliding block is driven to slide on the connecting rod, the clamping block is driven to move, and the hair brush is detached. And then the clamping block retr