Clamping device for a sprayer can

A clamping device for a sprayer can, comprising:

• a shell body, including a grip portion and a clamping portion for clamping an end of the sprayer can, the sprayer can provided with a dispenser valve at the end, the clamping portion including a circumferential wall, the circumferential wall defining a space for receiving the dispenser valve and a receiving opening communicating with the space, the circumferential wall further formed with a window communicating with the space and for the dispenser valve to spray to outside, the circumferential wall defining a plurality of first flexible portions and at least one second flexible portion transverse to a direction of the receiving opening and extending to the receiving opening, every two adjacent first flexible portions connected with one said second flexible portion disposed therebetween, the second flexible portion greater than the first flexible portion in flexibility.