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Linkable retractable dovetail type trash rack

A dovetail-shaped, trash rack technology, applied in water conservancy projects, artificial waterways, buildings, etc., can solve the problem of poor sewage passing capacity and achieve the effect of increasing the passing capacity

Active Publication Date: 2018-08-21
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of poor dirt passing capacity of the current trash-stopping equipment, the invention provides a trash rack whose opening and closing of the grid is controlled by an automatic device through the improvement of the traditional dovetail-shaped trash rack

Method used

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  • Linkable retractable dovetail type trash rack
  • Linkable retractable dovetail type trash rack
  • Linkable retractable dovetail type trash rack

Examples

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Embodiment 2

[0019] Embodiment 2: On the basis of Embodiment 1, a torsion spring capable of automatically launching the movable upper grid bar 2 and the movable lower grid bar 3 is installed between each movable upper grid bar 2 and the movable lower grid bar 3 . In the natural state, under the action of the torsion spring, the movable upper grille 2 and the movable lower grille 3 of each group of grilles are in the unfolded state. When the water flow needs to be changed, the traction wheel is driven to drive the steel wire ropes 13 on both sides to shrink Movement, thereby driving the up and down parallel moving rod 1 to perform contraction movement, at this time, the movable upper grid bar 2 and the movable lower grid bar 3 of each group of grid bars are driven by the up and down parallel moving rod 1 to perform contraction movement, so as to realize the purpose of controlling the displacement.

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Abstract

The invention discloses a linkable retractable dovetail type trash rack. A plurality of grid bars are located in the middle portion of a frame of a water channel in parallel. Each set of grid bars includes the upper movable grid bar and the lower movable grid bar which are hinged together through a center shaft. The upper ends of the upper movable grid bars and the lower ends of the lower movablegrid bars are hinged to corresponding parallel movable rods. Linkage bars are hinged to the two ends of the upper and lower parallel movable rods. A sliding shaft at the tail end of each linkage bar is arranged in a corresponding convergence slideway in a sleeved mode. The linkage bars are sleeved with center shaft sleeves. The middle portions or the two ends of the linkage bars are sleeved with push-pull shaft sleeves. The push-pull shaft sleeves are in transmission connection with corresponding hydraulic cylinder blocks through connecting seats. When sewage passes through the trash rack through a water inlet, big sewage can be intercepted by the trash rack and cannot pass through the trash rack. Opening and closing of the dovetail-type grid bars are controlled through sliding of automatic device control rods in the slideways, and the sewage passing capacity of the trash rack is improved.

Description

technical field [0001] The invention belongs to the technical field of waste-stopping equipment for water conservancy projects, and is mainly applicable to the waste-stopping of water inlets of hydropower stations, and in particular relates to a dovetail-shaped trash-stop controlled by an automatic device to open and close the grid. Background technique [0002] Trash racks are indispensable equipment in water intake and delivery buildings. Trash racks are generally installed at the water inlets of pumping stations, hydropower stations and ship lock water corridors to block water plants, driftwood and other debris (commonly referred to as dirt) in the water flow, so that the dirt is not easy to flow into the water diversion channel , to protect the unit, gates, valves and pipelines from damage, and ensure the safe operation of the unit and other equipment and structures. Whether the layout of the trash rack is reasonable will directly affect the safe operation of the buildi...

Claims

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Application Information

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IPC IPC(8): E02B5/08
Inventor 张宏洋李帅张先起王佟童牛昂刘斐胡登奎武小炎丁泽霖
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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