Importance

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Abstract

The present disclosure provides a structure configured to preset an automatic positioning duration to enable hinge blades to be automatically closed, the structure two hinge blades, a threaded sleeve, a fixed rod, a first spring, a electromagnet suction disk, a DC power supply electromagnet, a DC power supply timing controller, a remote control, a plug, and an adjusting base. The two hinge blades are configured to rotate relative to each other, each of the two hinge blades comprises a shaft sleeve and a blade fixed on an outer side of the shaft sleeve, the fixed rod comprises a threaded rod, the threaded sleeve comprises a transmission rod fixed in the shaft sleeve of the two hinge blades, the plug is fixedly disposed in the shaft sleeve of the two hinge blades, the threaded sleeve is separated from the plug, and the fixed rod, the first spring, the electromagnet suction disk, the power supply electromagnet, a bearing, and the adjusting base are disposed between the threaded sleeve and the plug disposed in the shaft sleeve of the two hinge blades. When the hinge blades reach the automatic positioning time preset by the timing controller, so that the hinge blades synchronously cooperates with the demagnetization time point preset by the timing controller. At the same time, the elastic force energy storage of the first spring changes and releases. An application of the present disclosure is wide, and has good industrial applicability.

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First Claim