| 摘要 |
A spring hinge structure includes a first hinge plate, a second hinge plate, and a restoring control device. The restoring control device includes an upper spindle mounted in the upper shaft tube of the first hinge plate, a lower spindle mounted in the lower shaft tube of the first hinge plate, and a spring mounted in the elongated shaft tube of the second hinge plate. A pair of juxtaposed T-shaped mounting rings made of composite plastic material are mounted between the upper shaft tube of the first hinge plate and the elongated shaft tube of the second hinge plate, and are mounted between the lower shaft tube of the first hinge plate and the elongated shaft tube of the second hinge plate respectively.
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