Fixing mechanism quick to disassemble and electronic device quick to disassemble

The utility model discloses a fixing mechanism quick to disassemble and an electronic device quick to disassemble. The fixing mechanism quick to disassemble is used for fixing an article to a frame and comprises a locating pin and a latching and fastening part. The locating pin is arranged on the frame and is provided with a column body and an annular groove formed in the column body in an extending mode, and the column body is used for penetrating through an opening of the article. The latching and fastening part is detachably arranged on the locating pin in a sleeving mode and comprises a limiting plate portion and a stopping plate portion. The limiting plate portion is provided with a first clamping groove structure, and the first clamping groove structure is embedded in the annular groove so as to intervene in relative movement between the latching and fastening part and the locating pin. The stopping plate portion is connected with the limiting plate portion in a relatively bendable mode and is provided with a second clamping groove structure corresponding to the first clamping groove structure, and the second clamping groove structure is arranged on the column body in a sliding and sleeving mode so that the stopping plate portion can move along the column body so as to press the article onto the frame. The fixing mechanism has the advantages of being simple in structure and easy to assemble; the elastic fixing design of the lathing and fastening part can effectively provide high reliability and bonding strength.