Limiter

The invention discloses a limiter comprising a slide rail component I and a slide rail component II which form a set and can slide relatively, wherein a plurality of limit blocks which are matched for use are respectively arranged on each of the slide rail component I and the slide rail component II; convex points and/or convex blocks and slotted holes and/or notches which are corresponding and matched are respectively arranged on the limit blocks of the slide rail component I and the slide rail component II; and the slide rail component I and the slide rail component II are moved, so that the relative positions of the limit blocks are changed and the corresponding convex points and/or convex blocks and the slotted holes and/or notches are matched, and the limiter can limit different positions. According to the limiter, the limit blocks are made of metal materials, so that the service life is significantly prolonged, the design is reasonable, the use is convenient, and a limiting purpose can be achieved conve