Span strain clamp

The utility model relates to a span strain clamp. The technical problem to be solved by the utility model is to provide the span strain clamp which is tight in fixation, capable of preventing a wire from retreating and large in bearing force. According to the technical scheme, the wire clamp comprises a wire clamp body, a wedge block and a retaining pressing block covering the wire clamp body, thewedge block is further provided with a tooth block, and the retaining pressing block comprises a retaining pressing block body and a retaining tooth block which is arranged on the retaining pressingblock body and corresponds to the tooth block; the clamping mechanism comprises an upper clamping plate, a lower clamping plate, a clamping pin, a first bolt and a universal steering block, the lowerclamping plate and the wedge block are integrally formed, the lower clamping plate is provided with a steering block arc groove used for containing the universal steering block, and the first bolt sequentially penetrates throug