千斤勾的使用,在京胡发展的历史长河中,也经历了三个阶段,最初使用的千斤勾大都用铁丝弯制而成,因铁丝较软,久之易生锈,拉高调琴铁丝千斤勾更容易弯、变形,因此,早期的千斤勾形状一般较现在小,成Z形,前后左右一般不大对称,当时的概念只是能勾住琴弦就行了,并不讲究形状的美观。 The use of jacks in the history of the development of the Beijing-Hutchinson, has also gone through three stages, most of the first use of the hook with hook made of bentonite, because the wire is soft, long-term rust, pull the high-key piano wire more pounds Easy to bend, deformation, therefore, the early shape of the jack generally smaller than it is now, into a Z-shaped, around the general is not symmetrical, then the concept can only hook the strings on the line, not pay attention to the appearance of beauty.