A collapsible storage rack comprising a plurality of sustain plates, a plurality of fix rods, a plurality of upper support rods, a plurality of lower support rods, a plurality of support blocks and a plurality of elongate pins:
- Said each sustain plate provided with an reinforcing plate combined under said sustain plate, said sustain plate having a plurality of insert holes and pin holes, said each reinforcing plate having a pin hole corresponding to said pin hole of said sustain plate;
- Said each fix rod provided with an open space for one of two ends of all said sustain plates and all said reinforcing plates to extend therein, a pin hole corresponding to said pin hole of said sustain plate, and slots in a lower wall;
- Said each upper support rod provided with an reinforcing rod, two slots respectively in two sides, an U-shaped upper position member provided and having a first sidewall with a U-shaped lower end and a second sidewall of a bent lower end, said first and said second sidewall of said upper position member respectively passing through down said two slots of said support rod, said upper rod and said reinforcing rod both provided with a pin hole corresponding to said pin hole of said upper support rod, said second sidewall of said upper position member provided with a slot for a stopper to pass through;
- Said lower support rod provided with a reinforcing rod, said lower support rod and said reinforcing rod all having slots to correspond to each other, said slots being passed through respectively by a first sidewall and a second sidewall of a U-shaped lower position member, said lower support rod and said reinforcing rod all having a pin hole corresponding to each other, said second sidewall of said lower position rod provided with a slot for a stopper to pass through;
- Said support block composed of four support plates combined with one another by fitting and forming said support block, a first one of said four support plate provided with slots for said first sidewall of said upper position member and said lower position member to pass through, a second one of said four support plates provided with slots for said second sidewall of said upper and said lower position member to pass through, said second support plate having slots to corresponding to said slots of said second sidewall of said upper and said lower position member;
- Said each elongate pin passing through said hole of said fix rod, said hole of said sustain plate, said hole of said reinforcing plate, said hole of said upper position member, said hole of said reinforcing rod, said hole of said upper support rod, and an center hollow space of said support block, and finally through said reinforcing rod and said lower support rod to engage with an annular groove formed in a lower end of said pin so that said pin may keep stably all those components together.