Convenient-to-assemble and disassemble middle interlayer of refrigerated cabinet or wine cabinet

Disclosed is a convenient-to-assemble and disassemble middle interlayer of a refrigerated cabinet or a wine cabinet. The convenient-to-assemble and disassemble middle interlayer comprises a front frame, a rear frame, a base, a plate cover, a foam layer, a fan, a wind net and a control device; a front inserting plate is inserted into a rear opening clamping groove of the front frame; an inserting plate of the rear frame is inserted into a bottom edge clamping groove of the front frame; the front frame and the rear frame are detachably connected into a whole; the front end of the base is connected with an angular inserting groove in an inserting mode; the cover plate is connected with an inserting groove of a lower opening in the inserting mode; a circuit board is disposed on the front frame; the upper end of the circuit board is embedded into and detachably matched with a lower opening clamping groove; the convenient-to-assemble and disassemble middle interlayer further comprises a fixing plate with air holes; the wind net is arranged in the air holes of the fixing plate in an integrated forming mode; the fixing plate is provided with inner clasps which surround the air holes; a fixing hole is formed in one end of the fixing plate, and a buckle is arranged at the other end of the fixing plate; the inner clasps are matched with a fan frame in a buckling mode; the fixing plate covers an air outlet hole in the plate cover; the buckle is connected with the plate cover in a clamping mode; a screw penetrates through the fixing hole to be in screw fit with the plate cover. The whole middle interlayer does not need to be taken out during maintaining, and maintaining and assembly are convenient.