(57) A desk board raising apparatus has a seat (10), an active module (20), a passive
module (30) and a cylinder (40). The active module (20) is pivotally mounted in the
seat (10) and has a base (21), two linking arms (22), and a pivot (23). The pivot
(23) is deposited between the linking arms (22) and pivotally mounted in the seat
(10). The passive module (30) has a passive board (31) pivotally connected with the
linking arms (22). The cylinder (40) is adapted to push the passive board (31). The
base (21) lifted up or down can drive the passive board (3)1 to move up or down. The
desk board raising apparatus uses a simple structure to synchronize the movements
of the passive board (31) and the base (21), and has the advantages of convenient
operation, low manufacturing cost and low maintenance cost.
|
|
