Hydraulic flap valve

Abstract

The invention discloses a hydraulic flap valve, and belongs to the related technical field of rainwater and sewage diversion drainage. The valve comprises a valve seat, a valve plate is installed on the surface of the valve seat through an adjusting mechanism, a fixing support is fixedly connected to the surface of the valve seat, a hydraulic cylinder is movably connected to the interior of the fixing support through a pin shaft, and the hydraulic cylinder controls the opening and closing stroke through a PLC. The output end of the hydraulic cylinder extends to the front face of the valve plate and is movably connected with the valve plate through a pin shaft, the valve plate is composed of a connecting plate and a flange opening, and the flange opening communicates with the surface of the connecting plate. Whether the valve plate is opened or not is judged through the control system according to rainfall, water level and water quality conditions, the valve plate is controlled by the hydraulic valve, the opening degree can be adjusted, precise closing and opening are achieved, and the problems that a traditional flap valve is not tightly closed, and sewage is discharged into a river channel to pollute water on sunny days are solved; according to the hydraulic flap valve, sewage cannot enter a river in sunny days, little first rain enters the river, overflow pollution is reduced, the environment is protected, and the flap valve further has the function of backward flowing prevention.

Description

Technical Field

[0001] The invention belongs to the technical field related to rainwater and sewage diversion drainage, and specifically relates to a hydraulic flap door. Background Art

[0002] The flap gate is installed at the tail end of the drainage pipe. It is a check valve that prevents external water from flowing back. The flap gate is mainly composed of four parts: valve seat, valve plate, water sealing ring and hinge. The shape is divided into round and square. The material of the flap gate is traditionally various metal products, but now it has developed into a variety of composite materials.

[0003] The patent number published on the China Patent Network is: 202210045341.5. The patent name is a flap door device, including a flap door seat that can be connected to the water outlet of a water pump, and a flap door warehouse for connecting to a water outlet pipe. The flap door seat port is provided with a pump port end flange connected to the water outlet of the water pump and a flap door plate cavity flange, and the flap door warehouse port is provided with an outlet pipe end flange and a docking flange connected to the outlet pipe. The flap door seat and the flap door warehouse are in the shape of a curved tube, and the flap door plate cavity flange is provided with a concave space that can accommodate a flap door plate, and an annular flap door sealing surface protruding from the concave space. The concave space corresponds to the flap door seat relative to the outer arc side and has a straight area, and the straight area is provided with a groove-shaped space for accommodating a flap door shaft and a flap door neck. The end shape of the docking flange corresponds to the end shape of the flap door plate cavity flange. The flap door of the present invention has a large opening angle, will not affect the water outlet flow of the device, has an energy-saving effect, enables the flap door to be opened 90 degrees, thereby will not suppress the water flow, and the flap door has a long service life.

[0004] The existing flap gate is composed of four parts: valve seat, valve plate, sealing ring and hinge. It is only used for circular and square water outlets with one-way water flow. It does not require manual operation. The opening and closing force comes from the water source pressure. When the water pressure inside the flap gate is greater than the pressure outside the flap gate, it opens, otherwise it closes. However, this flap gate is not suitable for rainwater and sewage diversion, because as long as the water pressure inside the flap gate is greater than the pressure outside the flap gate, the flap gate opens, and sewage flows into the river, polluting the water body.

[0005] Therefore, it is necessary to redesign the hydraulic flap door. Summary of the invention

[0006] In order to solve the problems raised in the above-mentioned background technology, the purpose of the present invention is to provide a hydraulic flap gate, which has the advantage of reducing overflow pollution and solves the problem that the existing flap gate is not suitable for rainwater and sewage diversion, because as long as the water pressure on the inside of the flap gate is greater than the pressure on the outside, the flap gate opens, and sewage flows into the river channel, polluting the water body.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a hydraulic flap door, comprising a valve seat;

[0008] A valve plate is installed on the surface of the valve seat through an adjusting mechanism, and a fixed bracket is fixedly connected to the surface of the valve seat. The interior of the fixed bracket is movably connected to a hydraulic cylinder through a pin shaft. The opening and closing stroke of the hydraulic cylinder is controlled by a PLC, and the output end of the hydraulic cylinder extends to the front side of the valve plate and is movably connected to the valve plate through a pin shaft.

[0009] As a preferred embodiment of the present invention, the valve plate is composed of a connecting plate and a flange port, the flange port is connected to the surface of the connecting plate, and the adjusting structure and the fixing bracket are fixedly connected to the surface of the connecting plate.

[0010] As a preferred embodiment of the present invention, a connecting rod is fixedly connected to the surface of the valve disc, and the connecting rod extends to the top of the flange mouth on the side away from the valve plate. A shaft rod is inserted into the side of the connecting rod away from the valve plate, and the shaft rod and the connecting plate are movably connected to the connecting plate through an adjustment structure.

[0011] As a preferred embodiment of the present invention, the adjustment mechanism includes a frame fixedly connected to the surface of the connecting plate, the frame is movably connected to a screw rod inside, the surface of the screw rod is threadedly connected to nuts located on both sides of the frame, and the shaft rod extends from a side away from the connecting rod to the inner side of the frame and is fixedly connected to the screw rod.

[0012] As a preferred embodiment of the present invention, the fixed bracket includes a cross beam fixedly connected to the surface of the connecting plate, the top of the cross beam is fixedly connected with a bearing seat, the bearing seat is located on both sides of the hydraulic cylinder, the bearing seat and the hydraulic cylinder are movably connected through bearings, the top of the cross beam is fixedly connected with an angle plate, and the side of the angle plate away from the cross beam is fixedly connected to the surface of the connecting plate.

[0013] As a preferred embodiment of the present invention, a magnetic ring displacement sensor is arranged on the top of the hydraulic cylinder, and a monitoring end of the magnetic ring displacement sensor is connected to an output end of the hydraulic cylinder.

[0014] As a preferred embodiment of the present invention, a rubber waterstop is arranged around the surface of the flange opening, and a side of the rubber waterstop away from the flange opening is in contact with the surface of the valve plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention determines whether to open the valve plate according to the rainfall, water level and water quality through the control system. The valve plate is controlled by a hydraulic valve, and the opening degree can be adjusted to achieve precise closing and opening, thereby solving the problems of traditional flap doors not being closed tightly and sewage discharge into rivers polluting water bodies on sunny days. The hydraulic flap door of the present invention can prevent sewage from flowing into the river on sunny days and reduce the amount of sewage flowing into the river in the early rain, thereby reducing overflow pollution and protecting the environment. The flap door also has the function of preventing backflow.

[0017] 2. The present invention has good sealing performance: a corrosion-resistant, wear-resistant and oil-resistant rubber waterstop is used for sealing, and the valve plate is pressed by a hydraulic cylinder, so the sealing effect is good.

[0018] 3. The invention has accurate opening degree: the hydraulic cylinder is equipped with a built-in magnetic ring displacement sensor, and the stroke position is fed back to the PLC, and the PLC accurately controls opening and closing according to the set parameters.

[0019] 4. The design of the present invention is more reasonable: the hydraulic flap door is equipped with an adjustment mechanism, which can adjust the distance between the valve plate and the water stop belt as needed, and is equipped with a submersible magnetic ring displacement sensor, which has better performance.

[0020] 5. The present invention is easy to install: a mounting hole is reserved on the valve body, and it can be fixed by inserting expansion bolts.

[0021] 6. The present invention can realize remote monitoring: the control cabinet is equipped with a remote monitoring module, and the mobile phone APP can remotely open and close the hydraulic flap door. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the valve seat structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the fixing bracket of the present invention;

[0025] Figure 4 It is a left side schematic diagram of the valve plate structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the front view of the valve plate structure of the present invention;

[0027] Figure 6 It is a schematic diagram of the structure of the hydraulic cylinder of the present invention;

[0028] Figure 7 For the present invention Figure 1 Enlarged structural diagram at A in the middle.

[0029] In the figure: 1. valve seat; 2. adjusting mechanism; 3. valve plate; 4. fixing bracket; 5. hydraulic cylinder; 6. connecting plate; 7. flange; 8. connecting rod; 9. shaft; 10. frame; 11. screw; 12. nut; 13. crossbeam; 14. bearing seat; 15. angle plate; 16. magnetic ring displacement sensor; 17. rubber waterstop. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] like Figures 1 to 7 As shown, the hydraulic flap door provided by the present invention comprises a valve seat 1;

[0032] A valve plate 3 is installed on the surface of the valve seat 1 through an adjusting mechanism 2. A fixed bracket 4 is fixedly connected to the surface of the valve seat 1. A hydraulic cylinder 5 is movably connected to the interior of the fixed bracket 4 through a pin shaft. The opening and closing strokes of the hydraulic cylinder 5 are controlled by a PLC. The output end of the hydraulic cylinder 5 extends to the front of the valve plate 3 and is movably connected to the valve plate 3 through a pin shaft.

[0033] refer to Figure 2 The valve plate 3 is composed of a connecting plate 6 and a flange port 7 . The flange port 7 is connected to the surface of the connecting plate 6 . The adjusting structure and the fixing bracket 4 are fixedly connected to the surface of the connecting plate 6 .

[0034] refer to Figure 4 A connecting rod 8 is fixedly connected to the surface of the valve disc, and the connecting rod 8 extends to the top of the flange opening 7 on the side away from the valve plate 3. A shaft rod 9 is inserted on the side of the connecting rod 8 away from the valve plate 3, and the shaft rod 9 is movably connected to the connecting plate 6 through an adjusting structure.

[0035] refer to Figure 7 The adjustment mechanism 2 includes a frame 10 fixedly connected to the surface of the connecting plate 6, a screw rod 11 is movably connected inside the frame 10, and nuts 12 located on both sides of the frame 10 are threadedly connected to the surface of the screw rod 11. The shaft rod 9 extends from the side away from the connecting rod 8 to the inner side of the frame 10 and is fixedly connected to the screw rod 11.

[0036] refer to Figure 3 The fixed bracket 4 includes a cross beam 13 fixedly connected to the surface of the connecting plate 6, a bearing seat 14 is fixedly connected to the top of the cross beam 13, the bearing seat 14 is located on both sides of the hydraulic cylinder 5, the bearing seat 14 is movably connected to the hydraulic cylinder 5 through a bearing, and an angle plate 15 is fixedly connected to the top of the cross beam 13, and the side of the angle plate 15 away from the cross beam 13 is fixedly connected to the surface of the connecting plate 6.

[0037] refer to Figure 6 A magnetic ring displacement sensor 16 is arranged on the top of the hydraulic cylinder 5 , and a monitoring end of the magnetic ring displacement sensor 16 is connected to an output end of the hydraulic cylinder 5 .

[0038] refer to Figure 1A rubber water stop 17 is arranged around the surface of the flange opening 7 , and the side of the rubber water stop 17 away from the flange opening 7 is in contact with the surface of the valve plate 3 .

[0039] The present invention controls the opening and closing of the hydraulic cylinder 5 through a PLC control system. When the hydraulic cylinder 5 is opened, the output end of the hydraulic cylinder 5 can shrink inward and pull the valve plate 3 to make it rotate and swing around the shaft rod 9 inside the adjustment structure. When a gap appears between the valve plate 3 and the flange opening 7, the sewage inside the pipeline can enter the river channel through the flange opening 7 for discharge. When the weather is sunny, the valve plate 3 is closed, and the sewage in the sewage network is not allowed to be discharged into the river channel. On rainy days, the control system determines whether to open the valve plate 3 based on the rainfall, water level, and water quality. The valve plate 3 is controlled by a hydraulic valve, and the opening degree is adjustable.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic flap valve, including a valve seat (1); Features: The surface of the valve seat (1) is mounted with a valve plate (3) via an adjusting mechanism (2); the surface of the valve seat (1) is fixedly connected with a fixed bracket (4); the interior of the fixed bracket (4) is movably connected with a hydraulic cylinder (5) via a pin shaft; the hydraulic cylinder (5) controls the opening and closing stroke via a PLC; the output end of the hydraulic cylinder (5) extends to the front face of the valve plate (3) and is movably connected to the valve plate (3) via a pin shaft.

2. The hydraulic flap door according to claim 1, Features: The valve plate (3) is composed of a connecting plate (6) and a flange opening (7); the flange opening (7) is connected to the surface of the connecting plate (6); and the adjusting structure and the fixing bracket (4) are fixedly connected to the surface of the connecting plate (6).

3. The hydraulic flap door according to claim 1, Features: A connecting rod (8) is fixedly connected to the surface of the valve disc, and the connecting rod (8) extends to the top of the flange opening (7) on the side away from the valve plate (3). A shaft rod (9) is inserted into the side of the connecting rod (8) away from the valve plate (3), and the shaft rod (9) is movably connected to the connecting plate (6) via an adjustment structure.

4. The hydraulic flap door according to claim 2, Features: The adjustment mechanism (2) comprises a frame (10) fixedly connected to the surface of the connecting plate (6), the frame (10) is movably connected to a screw rod (11) inside, the surface of the screw rod (11) is threadedly connected to nuts (12) located on both sides of the frame (10), and the shaft (9) extends from a side away from the connecting rod (8) to the inner side of the frame (10) and is fixedly connected to the screw rod (11).

5. The hydraulic flap door according to claim 4, Features: The fixed bracket (4) comprises a crossbeam (13) fixedly connected to the surface of the connecting plate (6); a bearing seat (14) is fixedly connected to the top of the crossbeam (13); the bearing seat (14) is located on both sides of the hydraulic cylinder (5); the bearing seat (14) and the hydraulic cylinder (5) are movably connected via bearings; an angle plate (15) is fixedly connected to the top of the crossbeam (13); and the side of the angle plate (15) away from the crossbeam (13) is fixedly connected to the surface of the connecting plate (6).

6. The hydraulic flap door according to claim 5, Features: A magnetic ring displacement sensor (16) is arranged on the top of the hydraulic cylinder (5), and a monitoring end of the magnetic ring displacement sensor (16) is connected to an output end of the hydraulic cylinder (5).

7. The hydraulic flap door according to claim 1, 2 or 6, Features: A rubber water stop strip (17) is arranged around the surface of the flange opening (7), and the side of the rubber water stop strip (17) away from the flange opening (7) is in contact with the surface of the valve plate (3).

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