Novel well lid seat
A manhole cover seat, a new type of technology, applied in water conservancy projects, artificial islands, underwater structures, etc., can solve the problems of manhole cover loss safety, manhole cover pedestrians in danger, pedestrians falling into tunnels, injury or death, etc.
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[0019] like image 3 and Figure 4 As shown, a novel well cover seat includes a seat body 1 fixedly installed at the wellhead, a wellhead protective railing 2 and a well cover 3. The upper end of the outer circumference of the base body 1 is provided with a concave step 15 for closely matching with the surrounding land, and the middle of the base body 1 is provided with a through hole 11 for people to enter the well, and the inner wall of the through hole 11 is provided with a step 10 for placing the well cover 3, One side of the wellhead protective railing 2 can be anchored in the groove 12 provided by the step 10, and the other side of the step 10 is provided with a groove 13 relative to the groove 12, and the other side of the wellhead protective railing 2 is hinged and hinged with the step 10. The point is located in the groove 13 mentioned above.
[0020] In the present invention, the groove 13 is an annular long groove, and the bottom of the annular long groove is even...
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