To achieve this, at least one detent lock comprising a lock that engages in a positive fit and has a limited retaining force is located between a drive element of the drive and the pivot plate.
为此，在驱动装置输出 元件与回转盘之间布置至少一个卡位锁紧机构，所述卡位锁紧机构具 有配置有有限的保持力的、形状配合的锁紧装置。
The utility model improves the tensile strength of the pivot mechanism, so that the relative rotation of the upper connecting plate and the lower connecting plate is more flexible.
本实用新型提高了枢轴机构的抗拉强度，令上、下连板之间的相对转动更加灵活。
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