Backward-flowing well lid

Abstract

The invention discloses a backward-flowing well lid which comprises a well base and a well lid body. A ring-shaped post is arranged at the lower end of the well lid body. A cylindrical block is arranged under the ring-shaped post, a ring is arranged on the outer side of the cylindrical block, and the outer circular face of the ring is matched with the inner circular face of the well base through threads. A plurality of connecting strips are arranged between the inner circular face of the ring and the outer circular face of the cylindrical block and evenly distributed along the cylindrical block. Sliding grooves are formed in the connecting strips. Connecting rods are arranged on the connecting strips. Each connecting strip is connected with one end of the corresponding connecting rod through a bolt, each bolt is matched with the corresponding sliding groove, and the other end of each connecting rod is rotatably connected with the ring-shaped post. A rotating rod is fixedly arranged on the ring-shaped post and penetrates through the well lid body. The sliding grooves are formed in the connecting strips. The backward-flowing well lid is effectively prevented from being stolen.

Description

technical field [0001] The invention relates to the technical field of well covers, in particular to an inverted well cover. Background technique [0002] All kinds of municipal pipe networks in the city are criss-crossed, and there are also working wells of various municipal pipe networks on the roads. When there is a large amount of rainwater or road surface drainage, it is easy to cause backflow, and the existing manhole covers are often in backflow. When it is used, it will be washed away or shifted, and vehicles and personnel will easily fall down the well, causing personal and property losses. Contents of the invention [0003] The object of the present invention is to provide a kind of inverted well cover to solve the deficiencies of the prior art. [0004] For realizing the object of the present invention, the technical scheme that adopts is: [0005] An inverted well cover, comprising a well base and a well cover, characterized in that the lower end of the well ...

AI Technical Summary

Problems solved by technology

[0002] All kinds of municipal pipe networks in the city are criss-crossed, and there are also working wells of various municipal pipe networks on the roads. When there is a large amount of rainwater or road surface drainage, it is easy to cause backflow, and the existing manhole covers are often in backflow. When it is in the well, it will be washed away or shifted, and the vehicle and personnel will easily fall to the underground, causing personal and property losses.

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