Inward-opening type self-tightening quick-opening manhole device and system
A quick-opening manhole and self-tightening technology, applied in the field of manholes, can solve the problems of reduced usability, bulky manhole devices, cumbersome disassembly procedures, etc., to achieve enhanced stability, simple operation steps, and reduced equipment weight Effect
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[0020]Hereinafter, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.
[0021]In order to solve the problems existing in the existing manhole device, an embodiment of the present invention provides an inward opening self-tightening type quick opening manhole device.
[0022]Seefigure 1 , The figure shows a cross-sectional view of an inward opening self-tightening quick opening manhole device provided by an embodiment of the present invention. Such asfigure 1 As shown, the inward-opening se...
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