自降螺旋千斤顶的螺纹无自锁作用，装有制动器。
From falls screw jack's thread non-self-locking action, is loaded with the brake.
普通螺旋千斤顶靠螺纹自锁作用支持重物，构造简单，但传动效率低，返程慢。
The ordinary screw jack depending on the thread self-locking action support heavy item, the structure is simple, but the transmission efficiency is low, the return trip is slow.
本文是对自锁锚杆在拉伸和剪切荷载共同作用下的锚固机理进行研究。
The anchorage mechanism of the locking anchor under tension together shear loads is studied in the paper.
同时，卡块的楔形设计能起到自锁的作用，使动静触头能够稳定接触。
Meanwhile, the wedge-shaped design of the fixture block can play the role of self-locking, and thus causing the moving and static contacts to be steadily contacted.
安全可靠：接头设计时，考虑到上碗扣螺旋摩擦力和自重力作用，使接头具有可靠的自锁能力。
Safe and reliable: joint design, taking into account the friction on the screw and self Bowl gravity, so that a reliable self-locking joint capabilities.
本实用新型带有锁竿结构，鱼竿受到外力作用即可方便实现自锁。
The utility model has a lock lever structure, and the fishing rod can conveniently realize self locking when acted by an external force.
本实用新型带有锁竿结构，鱼竿受到外力作用即可方便实现自锁。
The utility model has a lock lever structure, and the fishing rod can conveniently realize self locking when acted by an external force.
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