초록 ▼

A lock mechanism includes a driving arm having an arm portion and a fixing portion and a lock rod having first and second ends and a pivot portion. The pivot portion is pivoted to one of a cover and a casing. The fixing portion is disposed on the one of the cover and the casing so as to make a free

A lock mechanism includes a driving arm having an arm portion and a fixing portion and a lock rod having first and second ends and a pivot portion. The pivot portion is pivoted to one of a cover and a casing. The fixing portion is disposed on the one of the cover and the casing so as to make a free end of the arm portion interfere with an interference portion of the lock rod. The arm portion swings to a first position or a second position when receiving force. When the first end or the second end is pressed, the interference portion drives the free end to make the arm portion swing to the first or second position, so as to make the lock rod move to a locking position for fixing the cover on the casing or a releasing position for releasing the cover from the casing.

대표청구항 ▼

1. A lock mechanism for detachably fixing a cover on a side of a casing, the lock mechanism comprising: a lock rod having a first end, a second end and a pivot portion between the first end and the second end, the lock rod being pivoted to one of the cover and the casing through the pivot portion so

1. A lock mechanism for detachably fixing a cover on a side of a casing, the lock mechanism comprising: a lock rod having a first end, a second end and a pivot portion between the first end and the second end, the lock rod being pivoted to one of the cover and the casing through the pivot portion so that the first end and the second end could perform a lever movement relative to the pivot portion, and the first end having an interference portion; anda driving arm connected to a side of the lock rod and having a fixing portion and an arm portion connected to the fixing portion, the driving arm being disposed on the one of the cover and the casing through the fixing portion so as to make a free end of the arm portion interfere with the interference portion of the lock rod, and the arm portion swinging to a first swing position when receiving force in a first direction and the arm portion stopping at the first swing position when the force in the first direction is released, and the arm portion swinging to a second swing position when receiving force in a second direction opposite to the first direction and the arm portion stopping at the second swing position when the force in the second direction is released, a curvature of a bending shape of the arm portion at the first swing position being opposite to a curvature of a bending shape of the arm portion at the second swing position;wherein the interference portion drives the free end of the arm portion to make the arm portion swing to the first swing position when the first end is pressed and the second swing position when the second end is pressed, so as to make the lock rod move to a locking position for fixing the cover on the casing or move to a releasing position for releasing the cover from the casing. 2. The lock mechanism of claim 1, wherein the arm portion comprises a first arm structure and a second arm structure, the first arm structure has a first free end and a first fixing end, the second arm structure has a second free end and a second fixing end, the first fixing end and the second fixing end are adjacent to each other and connected to the fixing portion, the first free end is connected to the second free end for forming the free end cooperatively to cause bending deformation of the first arm structure and the second arm structure, so that the first arm structure and the second arm structure could only swing to the first swing position or the second swing position. 3. The lock mechanism of claim 1, wherein the interference portion of the first end of the lock rod is a recess, and the free end of the arm portion extends into the recess so as to cause interference with the recess. 4. The lock mechanism of claim 1, wherein a lock device is disposed on one of the first end and the second end of the lock rod for locking the cover on the casing as the lock rod moves to the locking position. 5. The lock mechanism of claim 4, wherein the lock device comprises a positioning pillar disposed on the first end and a positioning slot disposed on the other one of the cover and the casing, the positioning pillar corresponds to the positioning slot, and the positioning pillar is for inserting into the positioning slot so as to fix the cover on the side of the casing as the lock rod moves to the locking position. 6. The lock mechanism of claim 1 further comprising: a constraining frame disposed on the one of the cover and the casing, and a concave portion being formed on the constraining frame for containing the lock rod to pivot therein and for constraining the movement range of the lock rod when the first end or the second end is pressed. 7. The lock mechanism of claim 6, wherein at least one elastic arm is formed on an inner wall of the concave portion, a pivot shaft is formed on an end of the at least one elastic arm, a pivot hole is formed on the pivot portion corresponding to the pivot shaft, the at least one elastic arm is for providing elastic force to drive the pivot shaft to insert into the pivot hole as the lock rod is contained in the concave portion so as to make the pivot portion pivotally connected to the constraining frame. 8. The lock mechanism of claim 7, wherein a chamfer structure is respectively formed on the pivot shaft and an assembling path of the lock rod corresponding to the pivot shaft for guiding the pivot shaft to insert into the pivot hole. 9. The lock mechanism of claim 1, wherein the cover has a fixing base, the fixing base has a fixing protrusion and a fixing hole, an engaging slot and an elastic sheet are formed on the fixing portion of the driving arm, and the elastic sheet pops up from the fixing hole to engage with the fixing hole as the engaging slot is engaged with the fixing protrusion so as to make the driving arm fix on the cover. 10. The lock mechanism of claim 1, wherein the casing has a bending arm portion, the fixing portion of the driving arm is fixed on the bending arm portion so as to fix the driving arm on the casing, and the lock rod is pivoted to the casing. 11. The lock mechanism of claim 1, wherein a pressing recess is formed on the first end and the second end respectively. 12. The lock mechanism of claim 1, wherein the lock rod is a V-shaped lever structure. 13. A box-shaped apparatus comprising: a casing;a cover engaged with the casing to form a containing space; anda lock mechanism for detachably fixing the cover on a side of the casing, the lock mechanism comprising: a lock rod having a first end, a second end and a pivot portion between the first end and the second end, the lock rod being pivoted to one of the cover and the casing through the pivot portion so that the first end and the second end could perform a lever movement relative to the pivot portion, and the first end having an interference portion; anda driving arm connected to a side of the lock rod and having a fixing portion and an arm portion connected to the fixing portion, the driving arm being disposed on the one of the cover and the casing through the fixing portion so as to make a free end of the arm portion interfere with the interference portion of the lock rod, and the arm portion swinging to a first swing position when receiving force in a first direction and the arm portion stopping at the first swing position when the force in the first direction is released, and the arm portion swinging to a second swing position when receiving force in a second direction opposite to the first direction and the arm portion stopping at the second swing position when the force in the second direction is released, a curvature of a bending shape of the arm portion at the first swing position being opposite to a curvature of a bending shape of the arm portion at the second swing position;wherein the interference portion drives the free end of the arm portion to make the arm portion swing to the first swing position when the first end is pressed and the second swing position when the second end is pressed, so as to make the lock rod move to a locking position for fixing the cover on the casing or move to a releasing position for releasing the cover from the casing. 14. The box-shaped apparatus of claim 13, wherein the arm portion comprises a first arm structure and a second arm structure, the first arm structure has a first free end and a first fixing end, the second arm structure has a second free end and a second fixing end, the first fixing end and the second fixing end are adjacent to each other and connected to the fixing portion, the first free end is connected to the second free end for forming the free end cooperatively to cause bending deformation of the first arm structure and the second arm structure, so that the first arm structure and the second arm structure could only swing to the first swing position or the second swing position. 15. The box-shaped apparatus of claim 13, wherein the interference portion of the first end of the lock rod is a recess, and the free end of the arm portion extends into the recess so as to cause interference with the recess. 16. The box-shaped apparatus of claim 13, wherein a lock device is disposed on one of the first end and the second end of the lock rod for locking the cover on the casing as the lock rod moves to the locking position. 17. The box-shaped apparatus of claim 16, wherein the lock device comprises a positioning pillar disposed on the first end and a positioning slot disposed on the other one of the cover and the casing, the positioning pillar corresponds to the positioning slot, and the positioning pillar is for inserting into the positioning slot so as to fix the cover on the side of the casing as the lock rod moves to the locking position. 18. The box-shaped apparatus of claim 17 further comprising: a constraining frame disposed on the one of the cover and the casing, and a concave portion being formed on the constraining frame for containing the lock rod to pivot therein and for constraining the movement range of the lock rod when the first end or the second end is pressed. 19. The box-shaped apparatus of claim 18, wherein at least one elastic arm is formed on an inner wall of the concave portion, a pivot shaft is formed on an end of the at least one elastic arm, a pivot hole is formed on the pivot portion corresponding to the pivot shaft, the at least one elastic arm is for providing elastic force to drive the pivot shaft to insert into the pivot hole as the lock rod is contained in the concave portion so as to make the pivot portion pivotally connected to the constraining frame. 20. The box-shaped apparatus of claim 19, wherein a chamfer structure is respectively formed on the pivot shaft and an assembling path of the lock rod corresponding to the pivot shaft for guiding the pivot shaft to insert into the pivot hole. 21. The box-shaped apparatus of claim 13, wherein the cover has a fixing base, the fixing base has a fixing protrusion and a fixing hole, an engaging slot and an elastic sheet are formed on the fixing portion of the driving arm, and the elastic sheet pops up from the fixing hole to engage with the fixing hole as the engaging slot is engaged with the fixing protrusion so as to make the driving arm fix on the cover. 22. The box-shaped apparatus of claim 13, wherein the casing has a bending arm portion, the fixing portion of the driving arm is fixed on the bending arm portion so as to fix the driving arm on the casing, and the lock rod is pivoted to the casing. 23. The box-shaped apparatus of claim 13, wherein a pressing recess is formed on the first end and the second end respectively. 24. The box-shaped apparatus of claim 13, wherein the lock rod is a V-shaped lever structure. 25. The box-shaped apparatus of claim 13, wherein a first through hole is disposed on the cover corresponding to the first end, a second through hole is disposed on the cover corresponding to the second end, and the box-shaped apparatus further comprises an actuating rod for passing through the first through hole to press the first end or passing through the second through hole to press the second end. 26. The box-shaped apparatus of claim 13 further comprising: a network storage device disposed in the containing space.