| 摘要 |
Disclosed is a locking device (20) comprising a mounting plate (24) and a support plate (25), wherein the mounting plate (24) comprises a first surface (241) and two first side walls (242) arranged opposite each other, two opposite ends of the first surface (241) respectively extend into a first boss (243), inner side walls of the two first bosses (243) are respectively provided with a first sliding groove (2430), two outer side walls of the support plate (25) corresponding to the position of the first sliding grooves (2430) are respectively provided with a second sliding groove (250) matching the first sliding grooves (2430), wherein the first side walls (242) are provided with an accommodating groove (244). The locking device (20) further comprises a sliding block (261), wherein the sliding block (261) is slidably provided in the accommodating groove (244), the sliding block (261) comprises a first side face (2611) near the groove bottom of the accommodating groove (244), the first side face (2611) is provided with a clamping part (2641) extending in the direction approaching the groove bottom, and when the sliding block (261) is secured in the second sliding groove (250), the support plate (25) and the mounting plate (24) are locked together via the clamping part (2641). Furthermore, further disclosed is a cradle head using the above-mentioned locking device. The locking device and the cradle head can be quickly adjusted to achieve balance of centre of gravity, locking precision when quickly mounting plates can be improved, and the volume is small and disassembly is convenient. |
