Poka-yoke screw cap
A foolproof screw and steel sleeve technology, applied in the direction of nuts, bolts, threaded fasteners, etc., to achieve the effects of convenient use, prevention of opening the nut, and low production cost
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[0010] A fool-proof nut, comprising a steel sleeve shell 9, a spring ring 8 is installed in the steel sleeve shell 9, when using the present invention, it is only necessary to tighten the steel sleeve shell 9 of the present invention by rotating, Set on the corresponding threaded interface that needs a nut, the spring ring 8 will be clamped on the thread. The structure of the spring ring 8 can prevent the present invention from being disassembled by ordinary hand tools, and can be disassembled by the special tool corresponding to the present invention. At the same time, the structure of the spring ring 8 in the steel sleeve shell 9 will also be destroyed, so that the present invention becomes an ordinary nut; the bottom of the steel sleeve shell 9 is inlaid with a silicone ring 7, and the sealing performance is better ; The steel sleeve shell 9 and the spring ring 8 are all made of stainless steel, and the quality is better, so as to achieve the purpose of the present invention...
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