The self-adjusting wrench is an improvement to the existing socket wrench. The self-adjusting socket wrench is composed of a socket part and a handle; the socket part is a movable jaw whose key bar extends into the keyway of the main jaw, and the tooth arc The piece is embedded in the cylindrical through hole of the main gripper and can rotate around the central axis of the through hole. The tooth arc on the toothed arc piece meshes with the rack under the key bar, and the movable gripper and the main gripper are symmetrical on the upper and lower sides. A convex block is provided, and the inner walls of the two convex blocks are provided with a horizontal rack. The square column at the end of the handle matches the square hole in the middle of the sleeve part. The purpose of the self-adjusting socket wrench of the present invention is the same as that of the socket wrenches on the market. However, the series of sleeve parts are omitted, so it is convenient to carry, use and low cost.
The self-adjusting socket is used in conjunction with the socket wrench to pull the bolt and the socket wrench of the nut. It consists of two parts: a joint and a plum blossom socket head. Between the joint and the plum blossom socket head, 4 radiation lines are collected. In the transition of the ribs, the quincunx sleeve head is formed by the aggregation of 4 rib ends. A pull ring is placed on the gathering section of the ribs, and the pull ring is pushed forward, so that the four ribs can be gradually opened at the same time, thereby making the quincunx sleeve The head diameter is adjustable, and several bolts or nuts of several specifications can be pulled. It can be matched with the socket wrench to reduce the number of spare socket heads, thereby improving the use efficiency, avoiding the loss of the socket head, and reducing the weight of the socket wrench.
The self-adjusting socket wrench also includes a trigger body, a trigger, and a wrench slot. It also includes a wrench, at least two coaxially sleeved wrenches, and a spring; the wrench slot is provided at the end of the wrench; so The described wrench body is cylindrical, spring, at least two-stage wrench, the wrench is sequentially connected in the barrel of the wrench body, and the wrench is fixedly connected with the barrel mouth of the wrench. The utility model is provided with a multi-level same in the cylindrical wrench body. When there are multiple nuts of different specifications on a working surface, the wrench barrel set on the shaft sleeve can continuously rotate the nuts of different specifications without changing the sleeve head.