Water outlet pipe flap valve for pump station drainage pump

Abstract

The flap valve comprises a valve seat, a valve plate, a water sealing ring and a hinge, and further comprises a touch plate arranged at the circumferential edge of the valve plate, and the position, on the valve plate, of the touch plate is the farthest position away from the hinged position of the valve plate and the valve seat; the waterwheel mounting box is arranged on the valve seat and is provided with a mounting groove, an opening of the mounting groove faces one side of the valve plate, a waterwheel is rotatably mounted in the mounting groove, the waterwheel is located on one side, close to the valve seat, of the valve plate, and the waterwheel extends out of the opening of the mounting groove and is overlapped with the touch plate in a vertical plane; by means of the technical scheme, the water outlet pipe can be assisted in opening the valve plate, the opening force of the valve plate is increased, the opening difficulty during rusting is reduced, the structure is achieved by means of water pressure, structural arrangement is reduced, the cost is reduced, and the structure is simple. Not only is the structural design cost reduced, but also the problem of motor faults caused by the fact that the motor is in an underwater environment for a long time is avoided.

Description

TECHNICAL FIELD

[0001] The utility model discloses drainage pump equipment field especially relates to a kind of for pump station drainage pump outlet pipe flap. BACKGROUND

[0002] Flap is installed at the tail end of drainage pipeline, and the check valve with the function of preventing external water from pouring back. The flap is generally composed of a valve seat, a valve plate, a water seal ring and a hinge. Its opening and closing is mainly from water pressure, without manual operation. When the water pressure inside the flap is greater than the water pressure outside the flap, it opens, and vice versa. However, most of the current flaps are made of stainless steel. In many cases, the water level of the outlet pool is higher than the outlet of the drainage pump, so the flap is in the underwater environment for a long time, causing corrosion problems. Once rusted, it usually increases the difficulty of opening or closing the flap, and increases the water pressure of the drainage pump, causing the drainage pump to overload, or even unable to open. Patent CN213575576U discloses an energy-saving drainage pump station pipeline outlet flap, which is opened and closed by an electrically driven mechanical structure. Although this method can forcibly open and close the flap, the motor in this structure is prone to water ingress failure, resulting in loss of function. Therefore, the present application sets up a device to assist the opening of the flap based on water pressure to solve the above problems. SUMMARY

[0003] The existing flap at the outlet of the pump station water pump drainage pipe often appears rust phenomenon. Once rusted, it will increase the pressure of opening and closing the flap, and increase the water pressure of the drainage pump. The existing technology designs a scheme for opening and closing the flap by an electrically driven mechanical structure to solve the above problems. However, because the flap will be in the underwater environment for a long time in some cases, the motor in this structure is prone to failure, resulting in loss of function. The present application designs a flap for pump station drainage pump outlet pipe, which adopts the technical scheme of:

[0004] The flap for pump station drainage pump outlet pipe includes a valve seat, a valve plate, a water seal ring and a hinge. The valve seat and the valve plate are hinged by the hinge. The water seal ring is arranged at the end of the valve seat. The flap further comprises:

[0005] A touch plate is arranged at the circumferential edge of the valve plate, and the position of the touch plate on the valve plate is the farthest from the hinged position of the valve plate and the valve seat.

[0006] A waterwheel mounting box is arranged on the valve seat. The waterwheel mounting box has a mounting slot, and the opening of the mounting slot is arranged on the side of the valve plate. A waterwheel is rotatably mounted in the mounting slot. The waterwheel is located on the side of the valve plate close to the valve seat, and the waterwheel extends out of the opening of the mounting slot and overlaps with the touch plate in the vertical plane. The waterwheel mounting box is provided with an inlet pipe and a drainage pipe corresponding to the two sides of the waterwheel. The outlet end of a circulating water pump is connected with the inlet pipe.

[0007] Preferably, the water inlet pipe is also connected with the water outlet pipe of the pump station, and a one-way valve is arranged on the water inlet pipe.

[0008] Preferably, the diameter of the water inlet pipe is smaller than the diameter of the water outlet pipe of the pump station.

[0009] Preferably, the waterwheel installation box is a plastic box, and the waterwheel is a plastic waterwheel.

[0010] Preferably, the circulating water pump is fixed to the side wall of the pool below the water surface through a support.

[0011] The utility model discloses through above-mentioned technical scheme can when hinge rust, assist outlet pipe to open valve plate, enlarge valve plate opening force, reduce the opening difficulty when rust, simultaneously, this structure relies on water pressure to realize, has reduced structure setting, not only has reduced structure design cost, but also avoided the problem that motor fails to cause motor long time to be in underwater environment. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the perspective view of the utility model.

[0013] In the drawing, 1, valve seat, 2, valve plate, 3, hinge, 4, touch plate, 5, waterwheel installation box, 6, waterwheel, 7, installation groove, 8, water inlet pipe, 9, drain pipe, 10, one-way valve, 11, circulating water pump. DETAILED DESCRIPTION

[0014] In order to clearly illustrate the technical features of the present application, the utility model will be described in detail below with specific embodiments and in conjunction with the drawings.

[0015] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0016] As Figure 1As shown, the valve for the pump station drainage pump outlet pipe flap valve, including valve seat 1, valve plate 2, water seal ring (due to the assembly relationship is not shown) and hinge 3, valve seat 1 and valve plate 2 through the hinge 3 hinge, water seal ring is set in the end of valve seat 1, also including the touch plate 4, water wheel installation box 5, water wheel 6 and circulating water pump 11, touch plate 4 is set at the circumferential edge of valve plate 2, the edge of valve plate 2 where touch plate 4 is located is the farthest from the hinge position of valve plate 2 and valve seat 1 (i.e. hinge 3). This is because the valve plate 2 is opened from this side, when the touch plate 4 is in contact with the water wheel 6 in the water wheel installation box 5, the water wheel 6 can assist the valve plate 2 to open. Water wheel installation box 5 is fixed on the valve seat 1 through the support, water wheel installation box 5 has installation slot 7, the opening of installation slot 7 is set towards the side of valve plate 2, water wheel 6 is rotatably installed in installation slot 7, water wheel 6 is set at the left side of valve plate 2, and water wheel 6 extends out of the opening of installation slot 7 and overlaps with touch plate 4 in the vertical plane, water wheel installation box 5 is provided with water inlet pipe 8 and drainage pipe 9 corresponding to the two sides of water wheel 6, water inlet pipe 8 is connected with the water outlet end of a circulating water pump 11.

[0017] The auxiliary opening process is:

[0018] When the hinge 3 is rusty, the valve plate 2 opens to the right, the pump station drainage pump drains water, the water pressure impacts the valve plate 2, at the same time, the circulating water pump 11 pumps water into the water inlet pipe 8, which assists the water in the drainage pump pipe to impact the valve plate 2, increases the impact force, and then easily opens the valve plate 2. When closing, no drainage is performed, and the circulating water pump 11 is not started at the same time. The water pressure in the pool closes the valve plate 2, at the same time, when the valve plate 2 is closed, the touch plate 4 at the edge of the valve plate 2 may push the water wheel 6 to reverse, and the idling force is very small, so it will not affect the closing process of the valve plate 2. The water wheel 6 gives the valve plate 2 an auxiliary force when the valve plate 2 is opened, which increases the opening force of the valve plate 2. When the hinge 3 is rusty, because the instantaneous force is large when the valve plate 2 is opened, the water wheel 6 gives the valve plate 2 an instantaneous auxiliary force when it is opened, which greatly reduces the difficulty of opening the valve plate 2.

[0019] Further, the above-mentioned water inlet pipe 8 is also connected with the outlet pipe of the pump station, and a one-way valve 10 is arranged on the water inlet pipe 8. The opening pressure of the one-way valve 10 is less than the drainage pressure of the drainage pump. In this way, when the drainage pipe 9 drains water, the one-way valve 10 is easily opened, and the one-way valve 10 can prevent the water in the water inlet pipe 8 from flowing back to the drainage pipe 9. Through the above-mentioned structure design, the drainage pressure of the drainage pump and the drainage pressure of the circulating pump can be matched to increase the drainage pressure, and the water pressure utilization efficiency in the drainage pipe 9 can be improved.

[0020] Preferably, the diameter of the water inlet pipe 8 is smaller than the diameter of the outlet pipe of the pump station. This is because the water inlet pipe 8 does not play a role in drainage, but mainly promotes the rotation of the water wheel 6. Therefore, in order to improve the water speed, the diameter of the water inlet pipe 8 is smaller than the diameter of the outlet pipe.

[0021] Further, the water wheel installation box 5 is a plastic box, and the water wheel 6 is a plastic water wheel, and the plastic material has good anti-rust effect, and is suitable for the working condition, especially when the water level in the pool is higher than the height of the flap, the flap is in the underwater environment, and the plastic water wheel installation box 5 and the water wheel 6 can better prevent rust.

[0022] Further, the circulating water pump 11 is fixed to the side wall of the pool below the water surface through a support, the circulating water pump 11 sucks the water in the pool, and the water is pressurized into the water inlet pipe 8, and the pressure is greater than the water pressure from the drain pipe 9 (because the water discharged by the drain pump will generate a pressure drop in the conveying pipeline), the pressure increases the whole water pressure, and the water wheel 6 rotates faster, when the touch plate 4 is touched, the instantaneous opening degree of the valve plate 2 is increased, and the opening difficulty of the valve plate 2 is reduced.

[0023] The specific embodiment cannot be used as a limitation on the protection range of the utility model, and any alternative improvement or change made by the person skilled in the art to the embodiment of the utility model falls within the protection range of the utility model.

[0024] The parts not described in the utility model are the known technology of the person skilled in the art.

Claims

1. A flap valve for the outlet pipe of a drainage pump in a pumping station, comprising a valve seat, a valve plate, a water seal ring, and a hinge, wherein the valve seat and the valve plate are hinged together by the hinge, and the water seal ring is disposed at the end of the valve seat, characterized in that, Also comprising: a touch plate arranged at the circumferential edge of the valve plate, and the touch plate is farthest from the hinged position of the valve plate and the valve seat; a water wheel mounting box arranged at the valve seat, the water wheel mounting box has a mounting slot, the opening of the mounting slot is arranged towards the side of the valve plate, a water wheel is rotatably mounted in the mounting slot, the water wheel is located at the side of the valve plate close to the valve seat, and the water wheel extends out of the opening of the mounting slot and overlaps with the touch plate in the vertical plane, the water wheel mounting box is provided with an inlet pipe and a drain pipe corresponding to the two sides of the water wheel, and the inlet pipe is connected with the outlet end of a circulating water pump.

2. A flap for a pump station sump pump outlet pipe according to claim 1, characterized in that The inlet pipe is also connected with the outlet pipe of the pump station, and a one-way valve is arranged on the inlet pipe.

3. A flap for a pump station discharge pump outlet according to claim 1 or 2, c h a r a c t e r i s e d in that The diameter of the inlet pipe is smaller than the diameter of the outlet pipe of the pump station.

4. The pump station sump pump outlet pipe flapper of claim 1, wherein, The water wheel mounting box is a plastic box, and the water wheel is a plastic water wheel.

5. The pump station sump pump outlet pipe flapper of claim 1, wherein, The circulating water pump is fixed to the side wall of the water pool below the water surface through a support.

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