Bottom shaft lower horizontal gate

Abstract

The invention discloses a bottom shaft lower horizontal gate, belongs to the technical field of water conservancy projects, and provides a bottom shaft lower horizontal gate with a better landscape effect. The bottom shaft lower horizontal gate comprises a bottom shaft and a gate leaf, wherein the bottom shaft is mounted on a riverbed bottom plate through a hinged support, and the gate leaf is welded on the bottom shaft; and the bottom shaft lower horizontal gate further comprises a gate leaf driving mechanism arranged on the upstream of the gate leaf, the gate leaf driving mechanism comprises a closed cavity, a driving assembly is arranged in the closed cavity, and the driving assembly comprises a first telescopic oil cylinder, a second telescopic oil cylinder and a swing rod. According to the bottom shaft lower horizontal gate, the gate pier-free or hidden gate pier arrangement is adopted, and the whole gate leaf driving mechanism is arranged on the upstream side of the gate leaf, so that after water storage, the gate leaf driving mechanism can be positioned below the water surface, and meanwhile, the downstream side is not provided with an exposed oil cylinder structure of a traditional hydraulic support rod type gate except for the gate leaf, so that the landscape effect of the gate can be improved.

Description

technical field [0001] The invention relates to the technical field of water conservancy engineering, in particular to a gate lying under a bottom shaft. Background technique [0002] In water conservancy projects and urban water environment projects, it is usually necessary to set up gates, which are usually closed for high water storage levels, and opened to discharge flood water during flood discharge. In order to achieve a better landscape effect, the bottom shaft gate is widely used. At present, the bottom shaft gate mainly includes two types: the bottom shaft drive gate and the hydraulic strut gate. [0003] The layout scheme of the bottom shaft-driven gate is as follows: the oil cylinder is arranged in the drive chamber on one side or both sides of the gate, and the bottom shaft is directly driven to rotate through the crank arm fixedly connected with the bottom shaft, thereby driving the gate to rotate to lift and retain water, and the hydraulic system to discharge ...

AI Technical Summary

Problems solved by technology

However, for the hydraulic strut gate, the oil cylinder is located on the downstream river bed, and the floating objects and moving objects during flood discharge pose a great threat to the oil cylinder downstream of the gate, and it is easy to cause the oil cylinder to be blocked in rotation, so that the gate cannot be fully opened and the flood is blocked. ; At the same time, adjacent spans do not run synchronously or the downstream flow state is poor during the door process, which is easy to generate eddy current excitation, causing the anchorage failure of the bottom shaft hinge and the cylinder hinge; in summary, the door type has oil cylinder jamming and Failure risk of hinge seat falling off

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