Rapid dismounting and mounting structure of reciprocating saw tool rest

The utility model relates to a rapid dismounting and mounting structure of a reciprocating saw knife rest. The rapid dismounting and mounting structure comprises a knife rest fixing seat mounted on a saw body, a fixing shaft arranged at one end of the knife rest and a clamping assembly arranged at the other end of the knife rest. A first clamping groove corresponding to the fixing shaft is formed in one end of the tool rest fixing base, and a second clamping groove corresponding to the clamping assembly is formed in the other end of the tool rest fixing base. The clamping assembly comprises push buttons arranged on the two sides of the tool rest, push button lock pins connected with the push buttons and reset springs arranged on the push button lock pins in a sleeving mode. When the structure is used, the push buttons on the two sides of the knife rest are pinched by hands, meanwhile, the fixing shaft below the knife rest is clamped into the two first clamping grooves of the knife rest fixing base, after the