Toothbrush with detachable brush head

A toothbrush with a detachable brush head, comprising:

• a handle comprising a mounting end and a grip end, wherein the handle is formed with a socket extending from the mounting end toward the grip end and further formed laterally with a lateral opening which communicates with the socket;
• a brush head comprising a head portion and an elongated rod connected to the head portion, wherein the head portion is formed at one side with a bristle mounting portion and the elongated rod is adapted for insertion into the socket of the handle;
• and
• a snap-fit member adapted to be snapped into the lateral opening, wherein the snap-fit member comprises a resilient tab, a press block and a snap-fit bump, and wherein the resilient tab is provided on the elongated rod and connected at one end to the elongated rod with a connecting end, and the other end of the resilient tab is a free end separated from the elongated rod, and wherein the pressing block protrudes from the resilient tab and resides at the free end, and the snap-fit bump protrudes from the resilient tab and is provided between the connecting end and the free end.