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A tool box is provided, including a board member and a connecting member. Each lateral face of the board member is formed with a first connecting portion, and a mounting hole is disposed in each first connecting portion. Two ends of the mounting hole are respectively formed with a second connecting

A tool box is provided, including a board member and a connecting member. Each lateral face of the board member is formed with a first connecting portion, and a mounting hole is disposed in each first connecting portion. Two ends of the mounting hole are respectively formed with a second connecting portion. Each second connecting portion is detachably assembled in the mounting hole. The board member can be connected with another board member through the connecting members, and each lateral side can be connected with the board members.

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1. A tool box, including at least two board members and a connecting member, each board member having two corresponding surfaces and a plurality of lateral faces, wherein one of the corresponding surfaces is formed with at least one tool receiving portion, each lateral face is formed with at least o

1. A tool box, including at least two board members and a connecting member, each board member having two corresponding surfaces and a plurality of lateral faces, wherein one of the corresponding surfaces is formed with at least one tool receiving portion, each lateral face is formed with at least one notch, each notch has two first sidewalls opposite to each other, each first sidewall is formed with a mounting hole and a first toothed portion, the connecting member includes a main body detachably received in one of the at least one notch and having two second sidewalls which correspond to the two first sidewalls respectively, two blocks separately arranged, and four connecting axles, every connecting axle has a second toothed portion and a non-toothed distal portion, every two of the four connecting axles are axially retractably disposed through the two second sidewalls respectively and non-rotatable relative to the two second sidewalls respectively, each block is operable between a lock position and a release position and cooperates with two of the four connecting axles so that each of the connecting axles is axially movable between a latch position and a retracted position; wherein when respective one of the two blocks is in the lock position, respective two of the four connecting axles are driven to the latch position, every second toothed portion and every non-toothed distal portion of respective one of the connecting axles are protrusive outside one of the two second sidewalls and inserted in to one of the mounting holes, and every second toothed portion of respective one of the connecting axles is non-rotatably engaged with one of the first toothed portions; wherein when respective one of the two blocks is in the release position, respective two of the four connecting axles are driven to the retracted position, every second toothed portion and every non-toothed distal portion of respective one of the connecting axles are entirely retracted into one of the two second sidewalls. 2. The tool box of claim 1, wherein each first toothed portion has a plurality of teeth arranged circumferentially around one of the mounting hole. 3. The tool box of claim 1, wherein each second toothed portion has a plurality of teeth arranged circumferentially on one of the connecting axles. 4. The tool box of claim 1, wherein each second sidewall has a through hole through which one of the connecting axles is disposed, a circumferential surface around the through hole is provided with a third toothed portion, and every second toothed portion is non-rotatably and axial-movably engaged with one of the third toothed portion. 5. The tool box of claim 1, wherein each block includes a room between the two second sidewalls. 6. The tool box of claim 1, wherein each block includes a flange extending between the two second sidewalls. 7. The tool box of claim 6, wherein each block includes a room between the two second sidewalls, and the flange is adjacent to the room. 8. The tool box of claim 1, wherein the main body further includes a partition wall perpendicularly connected between the two second sidewalls, the partition wall and the two second sidewalls form two receiving spaces at two corresponding sides of the partition wall, and each of the two receiving spaces receives one of the blocks. 9. The tool box of claim 1, wherein each second sidewall has a through hole through which one of the connecting axles is disposed, each of the connecting axles is provided with a radial protrusion which is greater than the through hole, two ends of the second toothed portion of respective one of the connecting axles are respectively connected with one of the radial protrusions and one of the non-toothed distal portions, each side of each block facing one of the second sidewalls is further provided with a sliding track which is tilted relative to one of the second sidewalls, each connecting axle further includes a leg connected with one of the radial protrusions and slidably disposed into one of the sliding track, each leg cooperates with one of the sliding tracks so that sliding of the leg along the sliding track operates to axially move one of the connecting axles between the latch position and the retracted position. 10. The tool box of claim 9, wherein the sliding track includes a sliding groove having a cam surface abutting against one of the legs. 11. The tool box of claim 9, wherein an elastic member is disposed between one of the second sidewalls and one of the radial protrusions, and the elastic member urges one of the connecting axles toward one of the blocks. 12. The tool box of claim 1, wherein each second sidewall is further provided with a 9-shaped recess, each 9-shaped recess receives a torsional member, and the torsional member is further received within a 9-shaped recess of one of the blocks. 13. The tool box of claim 1, wherein each block is swingably pivoted to the two second sidewalls.