Patent ID: 8234758

Claim:
A snap hook structure, comprising: a main body, having a body portion with two sides and a hook portion extending from the body portion, wherein the body portion has a slot penetrating the two sides, the hook portion forms a hooking range, and an end edge of the hook portion has an abutted surface which is inclined to the body portion; and a keeper member, pivoted with its middle section in the slot via an axle, and having an acting portion corresponding to the body portion and a clamping portion enclosing the hooking range, the acting portion and the clamping portion located at two opposite ends of the keeper member respectively, the acting portion and the clamping portion located at two opposite sides of the body portion, and the keeper member rotating to drive the clamping portion to open the hooking range, wherein the acting portion has a stop portion, the axle is located between the stop portion and the clamping portion, a block member is put in the stop portion to limit the rotation of the keeper member and enable the clamping portion to keep enclosing the hooking range, an end edge of the clamping portion has an abut surface which urges the abutted surface and an end edge of the acting portion has a limiting flange facing the hook portion, and the limiting flange abuts against the hook portion, so as to prevent the clamping portion from exiting from the hooking range.