Combined storage shelf

1. A combined storage shelf, comprising:

a plurality of column combinations, comprising a plurality of assembly holes;

a plurality of connection and combination fasteners, wherein each of the connection and combination fasteners comprises a first connection and combination fastener and a second connection and combination fastener, each of the first connection and combination fastener and the second connection and combination fastener comprises a body portion, at least one fastening structure, and at least one engagement structure, the at least one fastening structure is formed on an outer side of the body portion, and the at least one engagement structure is disposed on two sides of the body portion;

each of the first connection and combination fasteners comprises at least one snap-fit portion, and each snap-fit portion is snapped to a corresponding assembly hole, to fix the respective first connection and combination fastener to the respective column combination; and

the engagement structure of each of the second connection and combination fasteners corresponds to the engagement structure of the respective first connection and combination fastener, so that the first connection and combination fastener and the second connection and combination fastener are assembled together;

a plurality of beam structures, wherein each of the beam structures comprises two first beam members, two second beam members, four beam connecting fasteners, and a plurality of beam fastening structures, the beam connecting fasteners are configured to connect the first beam members and the second beam members together, the beam fastening structures are disposed on the beam connecting fasteners, and each of the beam fastening structures is snapped into a corresponding fastening structure, so that the beam structures are connected to the corresponding connection and combination fasteners; and

a plurality of storage layers, disposed between the column combinations, wherein the beam structures support the corresponding storage layers;

wherein each of the column combinations comprises two columns, wherein each of the two columns includes a tube body and the tube body is a hollow square tube, wherein the plurality of assembly holes are sequentially arranged on at least one surface of each of the two columns, wherein each assembly hole is a square shaped opening having four sides, wherein the four sides of each assembly hole have a same size.

2. The combined storage shelf according to claim 1 , further comprising:

a plurality of fitting portions, wherein the fitting portions are connected to the first beam members, and each of the fitting portions comprises a hook hole.

3. The combined storage shelf according to claim 2 , further comprising:

a plurality of positioning slots, provided in the first beam members, wherein the positioning slots hold at least one corresponding partition member, to position the partition members on the storage layer.

4. The combined storage shelf according to claim 3 , wherein the partition members are capable of forming a drawer cabinet, a door cabinet, or a storage cabinet.

5. The combined storage shelf according to claim 1 , wherein the two columns of each of the column combinations are a first column and a second column, wherein assembly holes of the first column and assembly holes of the second column face each other.

6. The combined storage shelf according to claim 1 , wherein the plurality of assembly holes are sequentially arranged in an assembly direction, wherein the assembly direction is a top-to-bottom direction.