Large-sized hydraulic speed change floating box flap valve

Abstract

The invention discloses a large-sized hydraulic speed change floating box flap valve. The flap valve comprises a hinged support (1), a valve seat (3), an upper valve leaf (5) and a lower valve leaf (8), wherein both the valve seat (3) and the hinged support (1) are fixed on a pump station base; the upper valve leaf (5) is hinged with the hinged support (1) through a pin shaft (2); the lower valveleaf (8) is hinged with the upper valve leaf (5); the upper valve leaf (5) and the lower valve leaf (8) are hermetically contacted and matched with the valve seat (3) through a sealing structure, andthe upper valve leaf (5) is connected with the lower valve leaf (8) through at least one hydraulic mechanism (7); and one end of the hydraulic mechanism (7) is hinged with the upper valve leaf (5), and the other end of the hydraulic mechanism (7) is hinged with the lower valve leaf (8). After the structure is adopted, since the upper valve leaf and the lower valve leaf are provided with the hydraulic mechanism, the collision force of the valve leaves and the valve seat can be buffered by the hydraulic mechanism; thus water sealing rubber for sealing the valve leaves and the valve seat is prevented from being damaged so as to reduce the cost; meanwhile, the noise produced during collision is also reduced.

Description

technical field

[0001] The invention relates to ancillary equipment of a drainage and irrigation pumping station, in particular to a large-scale hydraulic speed-variable buoyant flap valve which is used for shutting down the water pump of the drainage and irrigation pumping station. Background technique

[0002] The irrigation and drainage pumping station is a complex of pumping devices, water inlet and outlet buildings, pump rooms and ancillary facilities for irrigation and drainage. The flap door is one of the important components in the drainage and irrigation pumping station. It is an accessory device used for shutting down the water pump in the drainage and irrigation pumping station. Its main function is to prevent the backflow of external river water. At present, commonly used flap doors include cast iron flap doors with hanging counterweights, pontoon flap doors and free-side flap doors, and the most commonly used ones are pontoon flap doors. Usually the floating bo...

Examples

Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Depend on figure 1 , figure 2 and image 3 As can be seen from the structural schematic diagram of the large-scale hydraulic variable speed buoyant flap door of the present invention shown, it includes hinge seat 1, door seat 3, upper door leaf 5 and lower door leaf 8, and described door seat 3 and hinge seat 1 are all fixed on the pump On the base of the station, the upper door leaf 5 is hinged with the hinge seat 1 through the pin shaft 2, the lower door leaf 8 is hinged with the upper door leaf 5, and the upper door leaf 5 and the lower door leaf 8 are connected to the door through a sealing structure. Seat 3 can be sealed contact fit. The upper door leaf 5 is connected to the lower door leaf 8 through at least one hydraulic mechanism 7 , one end of the hydraulic mechanism 7 is hinged to the upper door leaf 5 , and the o...

technical field

[0001] The invention relates to ancillary equipment of a drainage and irrigation pumping station, in particular to a large-scale hydraulic speed-variable buoyant flap valve which is used for shutting down the water pump of the drainage and irrigation pumping station. Background technique

[0002] The irrigation and drainage pumping station is a complex of pumping devices, water inlet and outlet buildings, pump rooms and ancillary facilities for irrigation and drainage. The flap door is one of the important components in the drainage and irrigation pumping station. It is an accessory device used for shutting down the water pump in the drainage and irrigation pumping station. Its main function is to prevent the backflow of external river water. At present, commonly used flap doors include cast iron flap doors with hanging counterweights, pontoon flap doors and free-side flap doors, and the most commonly used ones are pontoon flap doors. Usually the floating bo...

Examples

Embodiment Construction

[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] Depend on figure 1 , figure 2 and image 3 As can be seen from the structural schematic diagram of the large-scale hydraulic variable speed buoyant flap door of the present invention shown, it includes hinge seat 1, door seat 3, upper door leaf 5 and lower door leaf 8, and described door seat 3 and hinge seat 1 are all fixed on the pump On the base of the station, the upper door leaf 5 is hinged with the hinge seat 1 through the pin shaft 2, the lower door leaf 8 is hinged with the upper door leaf 5, and the upper door leaf 5 and the lower door leaf 8 are connected to the door through a sealing structure. Seat 3 can be sealed contact fit. The upper door leaf 5 is connected to the lower door leaf 8 through at least one hydraulic mechanism 7 , one end of the hydraulic mechanism 7 is hinged to the upper door leaf 5 , and the o...

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