Self-locking type nylon ribbon unlocking device

The utility model relates to a self-locking nylon cable tie unlocking device, which comprises an upper arm component and a lower arm component, and is characterized in that the upper arm component comprises an outer sleeve, a six-edge threaded cylinder arranged in the outer sleeve, an adjusting screw rod connected with the rear end part of the six-edge threaded cylinder in a matching way, and a hook claw connected with the front end part of the six-edge threaded cylinder in a matching way; the lower arm component comprises a spring bolt pressing rod and a handle connected to the rear end of the spring bolt pressing rod, and further comprises a U-shaped seat fixedly connected to the front portion of the spring bolt pressing rod. The outer sleeve is arranged in the U-shaped seat and penetrates through a through hole in the upper end of the U-shaped seat through two connecting screws to be connected with threaded holes in the two sides of the middle of the outer sleeve in a matched mode to form a pincer-like str