Universal fixed insertion frame of printed circuit board

The utility model discloses a universal fixed plug-in rack for a printed circuit board, which comprises a plug-in rack base and a plurality of door-shaped brackets vertically arranged on the plug-in rack base, the plug-in rack base is provided with a plurality of mutually spaced and parallel fixed plates, the fixed plates are provided with a plurality of convex parts, and the convex parts are fixed on the plug-in rack base. A concave part is formed between every two adjacent protruding parts, and the shape of the protruding parts is the same as that of the concave parts; the length direction of the door-shaped support is parallel to the arrangement direction of the fixing plates, and the lower end of the door-shaped support is detachably connected with the upper end of the protruding part. According to the utility model, the bottom of a product can be supported and positioned by arranging the plurality of convex parts on the base of the insertion frame, and the product is supported by the door-shaped bracket,