Tool fixing structureUS Patènt # 6863280
ABSTRACT A tool fixing structure includes a snap ring, a fixing socket, an elastic member, a fixing rod, an outer socket, and a pressing socket. In such a manner, the screwdriver head is mounted on and detached from the tool fixing structure rapidly, easily and conveniently, thereby facilitating replacement of the screwdriver head, and thereby facilitating the user operating the screwdriver head. In addition, the pressing socket is modularized, and may be replaced according to the requirements, thereby enhancing the versatility of the tool fixing structure. Further, the snap ring, the outer socket and the pressing socket are made of an aluminum material, thereby decreasing the weight of the tool fixing structure. BACKGROUND OF THE INVÈNTION 1. Field of the Invention The present invèntion relates to a tool fixing structure, and more particularly to a tool fixing structure, wherein the screwdriver head is mounted on and detached from the tool fixing structure rapidly, easily and conveniently, thereby facilitating replacement of the screwdriver head, and thereby facilitating the user operating the screwdriver head. 2. Description of the Related Art A conventional tool fixing structure has a bottom end fixed in the chuck of a motorized tool, and a screwdriver head is inserted into the top end of the tool fixing structure. In such a manner, the bottom end of the tool fixing structure is combined with the motorized tool, and the top end of the tool fixing structure is combined with the screwdriver head, so that when the motorized tool is rotated, the tool fixing structure is rotated so as to rotate the screwdriver head synchronously. However, the conventional tool fixing structure has a complicated structure, thereby increasing the cost of fabrication. In addition, the screwdriver head cannot be mounted on and detached from the tool fixing structure rapidly, easily and conveniently, thereby causing inconvenience in replacement of the screwdriver head, and thereby causing inconvenience to the user when operating the screwdriver head.
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