CN104763669B - Automatic water pump flap valve reversing device - Google Patents
Automatic water pump flap valve reversing device Download PDFInfo
- Publication number
- CN104763669B CN104763669B CN201510067399.XA CN201510067399A CN104763669B CN 104763669 B CN104763669 B CN 104763669B CN 201510067399 A CN201510067399 A CN 201510067399A CN 104763669 B CN104763669 B CN 104763669B
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- Prior art keywords
- water pump
- pipe
- water
- flap valve
- hydraulic
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- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electromagnetic Pumps, Or The Like (AREA)
- Check Valves (AREA)
- Hydraulic Turbines (AREA)
Abstract
The invention discloses an automatic water pump flap valve reversing device. The device comprises a water pump pipe and a hydraulic pipe, the two of which are mounted slantwise between the upstream water level and the downstream water level; a water pump is mounted on the water pump pipe; the water outlet end of the water pump is communicated with an upstream reservoir, while the water inlet end of the water pump extends into downstream water; the hydraulic pipe is buried under the water pump pipe; one end of the hydraulic pipe is connected with a hydraulic device a, while the other end of the hydraulic pipe is connected with a guide pipe device communicated with the water pump pipe; a flap valve is mounted at the water outlet end of the water pump pipe; a connecting shaft is arranged at the lower port of the water pump pipe; a lever device is connected to the flap valve to control the opening and the closing of the flap valve; the lever device controls pendulum motion by use of the hydraulic device a. compared with the prior art, the flap valve is opened under the combined action of the self-gravity of the flap valve and the impact force of water pumped by the water pump, and automatically closed under the negative pressure generated by the device; as a result, only extremely low electric energy is needed in the opening or closing process of the flap valve.
Description
Technical field
The application is related to water pump flap flip cover assembly, more particularly to a kind of water pump flap automatic cover-turning device and its construction party
Method.
Background technology
In existing middle-size and small-size water pump, flap valve is critically important structural fittings, and it mainly controls canal when water pump is shut down
Road water does not flow back.But the flap valve of routine is started upwards, flap valve is suitable for reading in water pump pipe with the connecting shaft of water pump pipe, and it is lifted
Rise is by pumping for water pump impulse force jack-up flap valve, to close flap valve by gravity during shutdown.Conventional middle-size and small-size water pump flap is light by then tens
Then hundreds of kilogram of kilogram weight, needs flap valve jack-up by pumping for water pump impulse force to consume much electricity.
To reduce energy consumption, pumping station operation efficiency is improved, disclose that a kind of opening angle is big, small flow resistance in prior art
Energy-saving free side-turning type flap valve, according to mechanics principle, the horizontal door-hinge of script suspension type flap valve is changed to into vertical door-hinge, together
When slope inwardly an optimal angle of inclination flap valve, now the door body opening force to be overcome be only door body deadweight divide
Power, so energy-saving free side-turning type flap valve can reach bigger opening angle when opening, so as to reach reduction resistance to water-flow,
Play a part of energy efficient.The type flap valve has following technical characterstic：1st, without the need for any headstock gear, can automatic open close.
Energy-saving free side-turning type flap valve most outstanding feature compared with suspension type flap valve is：Valve body hinge is vertically arranged, and is designed
One optimum tilt angle, using door weight component the power of door is closed, no matter large, medium and small latus rectum flap valve, any need not open
Close device.2nd, safety and stability, efficient energy-saving.Resistance is little when energy-saving free side-turning type flap valve runs, and opening angle is big, when closing
Impact force is little, eliminates the whirlpool produced when water hammer and water outlet；Without the need for handss, electricity, air-liquid control, should not manually operate, save big
Amount manpower and materials, improve pumping station operation reliability and unit efficiency, reduce operation expense, reduce pumping plant energy consumption.In reality
Detection test center of Ministry of Water Resources of Jing countries test in operation, energy-saving free side-turning type flap valve is than suspension type flap valve saves energy
22.5%.3rd, it is easy to maintenance, long service life.The valve shaft of flap valve is stainless steel material, and pivot pin seat is copper alloy solid lubrication axle
Hold, will not corrosion, sealed reliable, main body is carbon steel material；Product structure advantages of simple, running orbit is unique, and service life can
It is up to more than 30 years and easy to maintenance.
The content of the invention
Present invention solves the technical problem that：The application for water pump flap in prior art rely on pumping for water pump impulse force by its
Jack-up and need to expend the deficiency of electric energy, there is provided it is a kind of that flap valve and water pump pipe connecting shaft are installed on into mouth under water pump pipe, and disappear
The water pump flap automatic cover-turning device and its construction method of consumption little power.
To solve above-mentioned technical problem, the present invention is employed the following technical solutions：
A kind of water pump flap automatic cover-turning device, including the water pump pipe being inclined and mounted between upper pond level and the level of tail water
And hydraulic tube, water pump is installed on the water pump pipe, its water side connects with upstream inpoundment pond, and water inlet end extends to downstream water
In；The hydraulic tube is embedded in the lower section of the water pump pipe, and its one end has hydraulic means a, and the other end is connected with and the water pump
The pipe guide of pipe connection；The water pump pipe water side is provided with flap valve, and connecting shaft is placed in mouth under water pump pipe, is connected with flap valve
The leverage of its folding is controlled, the leverage does oscillating motion by hydraulic means a controls.
Pipe guide of the present invention is installed on water pump pipe downstream for arc shape pipeline, the joint of its upper end and water pump pipe
The cover plate with spring is provided with, lower end is equipped with water check valve.During pumping for water pump, because the effect of current makes cover plate that pipe guide is suitable for reading
Cover；When water pump is shut down, spring is upspring so that cover plate is started, the water Liu Jin pipe guides allowed in water pump pipe, under pipe guide
The water check valve at end prevents current further to flow back in water pump pipe.
Further, hydraulic means b is installed on pipe guide upstream, connection hydraulic tube and pipe guide.
One end that leverage of the present invention is connected with hydraulic means a is provided with chute, the connecting-rod bearing of hydraulic means a with
Leverage is slidably connected；Additionally, one end that leverage is connected with flap valve is provided with push rod.
Preferably, the push rod of the leverage and drive link bolt connection, and angle is 60-90 °.
Further, push rod top is provided with bearing, and bearing slides relative to flap valve.
Preferably, the drive link is provided with 3-7 fulcrum.
Preferably, the hydraulic pressure bucket internal diameter of the hydraulic means a is 20-40 centimetre.
Preferably, the upper pond level and the water-head of the level of tail water are 3-7 rice.
The invention also discloses a kind of construction method of water pump flap automatic cover-turning device, its feature include following technique and
Step：
1) a kind of water pump flap automatic cover-turning device, including the water pump being inclined and mounted between upper pond level and the level of tail water
Pipe and hydraulic tube, install first water pump, and in the upper and lower ends of water pump water pump pipe is respectively mounted, the water side of water pump pipe upper end with it is upper
Trip cistern connection, the lower end water inlet end of water pump pipe is extended in downstream water, and upper pond level is 3-7 with the water-head of the level of tail water
Rice；
2) hydraulic tube is embedded in the lower section of water pump pipe, thereon end arranges hydraulic means a, hydraulic tube lower end arranges hydraulic pressure
Reconnect on pipe guide after device b；Pipe guide is arc shape pipeline, installed in water pump pipe lower end, on pipe guide
End arranges the cover plate with spring with water pump pipe joint, and in pipe guide lower end water check valve is arranged；
3) flap valve is installed in water pump pipe upper end water side, connecting shaft is arranged on water pump pipe lower outlet, connects on flap valve
Leverage, leverage controls flap valve and does oscillating motion by hydraulic means a；
4) 3-7 fulcrum is provided with the drive link of leverage, fulcrum bottom arranges pillar, and leverage is filled with hydraulic pressure
The one end for putting a connections arranges chute, and the internal diameter of the hydraulic pressure bucket of hydraulic means a is 20-40 centimetre, the connecting-rod bearing of hydraulic means a
It is slidably connected with leverage；The one end being connected with flap valve in leverage arranges push rod, push rod and drive link bolt connection, and
Angle is 60-90 °, and bearing, bearing connection flap valve are arranged at the top of push rod；
5) in pump working, flap valve is opened under gravity and water flow impact pressure effect, when water pump is shut down, pipe guide
Upper end is upspring with the cover plate of water pump pipe joint, and hydraulic means b obtains hydraulic pressure, promotes hydraulic means a, is connected with hydraulic means a
Leverage swing so that flap valve closure.
Beneficial effect
The present invention is adopted and have after above technical scheme following technique effect：Flap valve and water pump pipe in device of the present invention
Connecting shaft be arranged on water pump pipe under mouth, when pump working, flap valve is opened under gravity；When water pump is shut down, utilize
Water levels of upstream and downstream is poor, pipe guide, hydraulic tube and hydraulic means and the vacuum cavitations leverage that produces swings so that
Flap valve is closed.Compared with prior art, the opening of flap valve of the present invention is by the gravity of flap valve itself and the impulse force of pumping for water pump
Collective effect, and flap valve closes the negative pressure produced by device itself and closes automatically；Therefore the opening or closing course of flap valve is only needed
Consume little power.
Description of the drawings
Fig. 1 is the structural representation of water pump flap automatic cover-turning device of the present invention；
Fig. 2 is leverage structural representation；
Fig. 3 is pipe guide structural representation；
Wherein, 1. flap valve；2. leverage；3. hydraulic means a；4. water pump pipe；5. water pump；6. hydraulic tube；7. hydraulic pressure is filled
Put b；8. pipe guide；9. cover plate；10. water check valve；21. chutes；22. push rods；23. drive links；24. fulcrums.
Specific embodiment
To make the purpose and technical scheme of the application clearer, below in conjunction with technology of the embodiment of the present application to the application
Scheme is clearly and completely described.Described embodiment is a part of embodiment of the application, rather than the enforcement of whole
Example, based on described embodiments herein, those of ordinary skill in the art are obtained on the premise of without the need for creative work
The every other embodiment for obtaining, belongs to the scope of the application protection.
Embodiment 1：
As shown in figure 1, a kind of water pump flap automatic cover-turning device, including be inclined and mounted on upper pond level and the level of tail water it
Between water pump pipe 4 and hydraulic tube 6, water pump 5 is wherein installed on water pump pipe 4, the water side of water pump pipe 4 connects with upstream inpoundment pond,
Water inlet end is extended in downstream water；The hydraulic tube 6 is embedded in the lower section of the water pump pipe 4, and the one end of hydraulic tube 6 is provided with hydraulic pressure dress
A3 is put, the other end is connected with the pipe guide 8 connected with the water pump pipe 4；The water side of the water pump pipe 4 is provided with flap valve 1, water
Pump line 4 is placed in 4 times mouths of water pump pipe with the connecting shaft of flap valve 1, and the leverage 2 for controlling its folding, the thick stick are connected with flap valve 1
Lever apparatus 2 does oscillating motion by hydraulic means a3 controls.
As shown in figure 3, pipe guide of the present invention 8 is installed on the downstream of water pump pipe 4, its upper end and water for arc shape pipeline
The joint of pump line 4 is provided with the cover plate 9 with spring, and lower end is equipped with water check valve 10.During pumping for water pump, because the effect of current makes lid
Plate is in pipe guide upper flap；When water pump is shut down, spring is upspring so that cover plate is started, the water Liu Jin conduits allowed in water pump pipe
Device, the water check valve of pipe guide lower end prevents current further to flow back in water pump pipe.
Further, hydraulic means b7 is installed on into the upstream of pipe guide 8, connection hydraulic tube 6 and pipe guide 8.
As shown in Fig. 2 one end that leverage of the present invention 2 is connected with hydraulic means a3 is provided with chute 21, hydraulic pressure dress
The connecting-rod bearing and leverage 2 for putting a3 is slidably connected.One end that the leverage 2 is connected with flap valve 1 is provided with push rod 22, institute
The push rod 22 and drive link 23 for stating leverage 2 is bolted, and the angle between the two is 60 °.
Preferably, the top of push rod 22 is provided with bearing, and bearing slides relative to flap valve.
Further, the drive link 23 is provided with 3 fulcrums 24, and regulates and controls the position of fulcrum according to flap valve weight.
Preferably, the internal diameter of the hydraulic pressure bucket of the hydraulic means a3 is 20 centimetres, and adopts electro hydraulic gear.
Further, the upper pond level and the water-head of the level of tail water are 3 meters.
Preferably, the weight of the flap valve 1 is 67 kilograms.
Embodiment 2：
As shown in figure 1, a kind of water pump flap automatic cover-turning device, including be inclined and mounted on upper pond level and the level of tail water it
Between water pump pipe 4 and hydraulic tube 6, water pump 5 is wherein installed on water pump pipe 4, the water side of water pump pipe 4 connects with upstream inpoundment pond,
Water inlet end is extended in downstream water；The hydraulic tube 6 is embedded in the lower section of the water pump pipe 4, and the one end of hydraulic tube 6 is provided with hydraulic pressure dress
A3 is put, the other end is connected with the pipe guide 8 connected with the water pump pipe 4；The water side of the water pump pipe 4 is provided with flap valve 1, water
Pump line 4 is placed in 4 times mouths of water pump pipe with the connecting shaft of flap valve 1, and the leverage 2 for controlling its folding, the thick stick are connected with flap valve 1
Lever apparatus 2 does oscillating motion by hydraulic means a3 controls.
As shown in figure 3, pipe guide of the present invention 8 is installed on the downstream of water pump pipe 4, its upper end and water for arc shape pipeline
The joint of pump line 4 is provided with the cover plate 9 with spring, and lower end is equipped with water check valve 10.During pumping for water pump, because the effect of current makes lid
Plate is in pipe guide upper flap；When water pump is shut down, spring is upspring so that cover plate is started, the water Liu Jin conduits allowed in water pump pipe
Device, the water check valve of pipe guide lower end prevents current further to flow back in water pump pipe.
Further, hydraulic means b7 is installed on into the upstream of pipe guide 8, connection hydraulic tube 6 and pipe guide 8.
As shown in Fig. 2 one end that leverage of the present invention 2 is connected with hydraulic means a3 is provided with chute 21, hydraulic pressure dress
The connecting-rod bearing and leverage 2 for putting a3 is slidably connected.One end that the leverage 2 is connected with flap valve 1 is provided with push rod 22, institute
The push rod 22 and drive link 23 for stating leverage 2 is bolted, and the angle between the two is 75 °.
Preferably, the top of push rod 22 is provided with bearing, and bearing slides relative to flap valve.
Further, the drive link 23 is provided with 5 fulcrums 24, and regulates and controls the position of fulcrum according to flap valve weight.
Preferably, the internal diameter of the hydraulic pressure bucket of the hydraulic means a3 is 30 centimetres, and adopts electro hydraulic gear.
Further, the upper pond level and the water-head of the level of tail water are 5 meters.
Preferably, the weight of the flap valve 1 is 112 kilograms.
Embodiment 3：
As shown in figure 1, a kind of water pump flap automatic cover-turning device, including be inclined and mounted on upper pond level and the level of tail water it
Between water pump pipe 4 and hydraulic tube 6, water pump 5 is wherein installed on water pump pipe 4, the water side of water pump pipe 4 connects with upstream inpoundment pond,
Water inlet end is extended in downstream water；The hydraulic tube 6 is embedded in the lower section of the water pump pipe 4, and the one end of hydraulic tube 6 is provided with hydraulic pressure dress
A3 is put, the other end is connected with the pipe guide 8 connected with the water pump pipe 4；The water side of the water pump pipe 4 is provided with flap valve 1, water
Pump line 4 is placed in 4 times mouths of water pump pipe with the connecting shaft of flap valve 1, and the leverage 2 for controlling its folding, the thick stick are connected with flap valve 1
Lever apparatus 2 does oscillating motion by hydraulic means a3 controls.
As shown in figure 3, pipe guide of the present invention 8 is installed on the downstream of water pump pipe 4, its upper end and water for arc shape pipeline
The joint of pump line 4 is provided with the cover plate 9 with spring, and lower end is equipped with water check valve 10.During pumping for water pump, because the effect of current makes lid
Plate is in pipe guide upper flap；When water pump is shut down, spring is upspring so that cover plate is started, the water Liu Jin conduits allowed in water pump pipe
Device, the water check valve of pipe guide lower end prevents current further to flow back in water pump pipe.
Further, hydraulic means b7 is installed on into the upstream of pipe guide 8, connection hydraulic tube 6 and pipe guide 8.
As shown in Fig. 2 one end that leverage of the present invention 2 is connected with hydraulic means a3 is provided with chute 21, hydraulic pressure dress
The connecting-rod bearing and leverage 2 for putting a3 is slidably connected.One end that the leverage 2 is connected with flap valve 1 is provided with push rod 22, institute
The push rod 22 and drive link 23 for stating leverage 2 is bolted, and the angle between the two is 90 °.
Preferably, the top of push rod 22 is provided with bearing, and bearing slides relative to flap valve.
Further, the drive link 23 is provided with 7 fulcrums 24, and regulates and controls the position of fulcrum according to flap valve weight.
Preferably, the internal diameter of the hydraulic pressure bucket of the hydraulic means a3 is 40 centimetres, and adopts electro hydraulic gear.
Further, the upper pond level and the water-head of the level of tail water are 7 meters.
Preferably, the weight of the flap valve 1 is 155 kilograms.
The present embodiment also discloses a kind of construction method of water pump flap automatic cover-turning device, and its feature includes following technique
And step：
1) a kind of water pump flap automatic cover-turning device, including the water pump being inclined and mounted between upper pond level and the level of tail water
Pipe 4 and hydraulic tube 6, install first water pump 5, and in the upper and lower ends of water pump water pump pipe 4, the water outlet of the upper end of water pump pipe 4 are respectively mounted
End connects with upstream inpoundment pond, and the lower end water inlet end of water pump pipe 4 is extended in downstream water, the water level of upper pond level and the level of tail water
Difference is 3-7 rice；
2) hydraulic tube 6 is embedded in the lower section of water pump pipe 4, thereon end arranges hydraulic means a3, the lower end of hydraulic tube 6 is arranged
Reconnect after hydraulic means b7 on pipe guide 8；Pipe guide 8 is arc shape pipeline, installed in the lower end of water pump pipe 4, is being led
The upper end of pipe device 8 arranges the cover plate 9 with spring with the joint of water pump pipe 4, and in the lower end of pipe guide 8 water check valve 10 is arranged；
3) flap valve 1 is installed in the upper end water side of water pump pipe 4, connecting shaft is arranged on the lower outlet of water pump pipe 4, on flap valve 1
Connection leverage 2, leverage 2 controls flap valve and does oscillating motion by hydraulic means a3；
4) 3-7 fulcrum 24 is provided with the drive link 23 of leverage 2, the bottom of fulcrum 24 arranges pillar, leverage 2
The one end being connected with hydraulic means a3 arranges chute 21, and the internal diameter of the hydraulic pressure bucket of hydraulic means a3 is 20-40 centimetre, hydraulic means
The connecting-rod bearing of a3 is slidably connected with leverage 2；The one end being connected with flap valve 1 in leverage 2 arranges push rod 22, push rod 22
With the bolt connection of drive link 23, and angle is 60-90 °, and at the top of push rod 22 bearing, bearing connection flap valve are arranged；
5) in pump working, flap valve is opened under gravity and water flow impact pressure effect, when water pump is shut down, pipe guide
8 upper ends are upspring with the cover plate 9 of the joint of water pump pipe 4, and hydraulic means b7 obtains hydraulic pressure, hydraulic means a3 are promoted, with hydraulic means
The leverage of a3 connections swings, so that flap valve closure.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein, including technology art
Language and scientific terminology, with the application art in those of ordinary skill general understanding identical meaning.Should also
It is understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or excessively formal implication is explaining.
The implication of " inside and outside " described herein is referred to relative to equipment itself, the side inside sensing equipment
To for interior, otherwise for outer.
It can also pass through between part that the implication of " connection " described herein can be being directly connected between part
Other parts are indirectly connected with.
With the above-mentioned desirable embodiment according to the application as enlightenment, by above-mentioned description, relevant staff is complete
Entirely various change and modification can be carried out in the range of without departing from this application technological thought.The technology of this application
Property scope is not limited to the content in description, it is necessary to its technical scope is determined according to right.
Claims (4)
1. a kind of water pump flap automatic cover-turning device, including the water pump pipe being inclined and mounted between upper pond level and the level of tail water
（4）And hydraulic tube（6）, the water pump pipe（4）On water pump is installed（5）, its water side connects with upstream inpoundment pond, and water inlet end prolongs
In extending downstream water；The hydraulic tube（6）It is embedded in the water pump pipe（4）Lower section, its one end has hydraulic means a（3）, it is another
End is connected with and the water pump pipe（4）The pipe guide of connection（8）；The water pump pipe（4）Water side is provided with flap valve（1）, even
Spindle is placed in water pump pipe（4）Lower mouth, flap valve（1）On be connected with control its folding leverage（2）, the leverage（2）
By hydraulic means a（3）Oscillating motion is done in control；It is characterized in that：
The pipe guide（8）For arc shape pipeline, water pump pipe is installed on（4）Downstream, its upper end and water pump pipe（4）Joint sets
There is the cover plate with spring（9）, lower end is equipped with water check valve（10）；Hydraulic means b（7）It is installed on pipe guide（8）Upstream, connection liquid
Pressure pipe（6）And pipe guide（8）；
The leverage（2）With hydraulic means a（3）One end of connection is provided with chute（21）, hydraulic means a（3）Pitman shaft
Hold and leverage（2）It is slidably connected；The leverage（2）With flap valve（1）One end of connection is provided with push rod（22）.
2. a kind of water pump flap automatic cover-turning device according to claim 1, it is characterised in that the leverage（2）'s
Push rod（22）With drive link（23）Bolt connection, and angle is 60 ° -90 °.
3. a kind of water pump flap automatic cover-turning device according to claim 1, it is characterised in that push rod（22）Top is provided with axle
Hold, bearing slides relative to flap valve.
4. a kind of water pump flap automatic cover-turning device according to claim 2, it is characterised in that the drive link（23）On set
There is 3-7 fulcrum（24）.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710082184.4A CN106837776A (en) | 2015-02-09 | 2015-02-09 | Water pump flap automatic cover-turning device |
| CN201710082183.XA CN106837775A (en) | 2015-02-09 | 2015-02-09 | A kind of water pump flap automatic cover-turning device |
| CN201510067399.XA CN104763669B (en) | 2015-02-09 | 2015-02-09 | Automatic water pump flap valve reversing device |
| CN201710082182.5A CN106812692A (en) | 2015-02-09 | 2015-02-09 | A kind of construction method of water pump flap automatic cover-turning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510067399.XA CN104763669B (en) | 2015-02-09 | 2015-02-09 | Automatic water pump flap valve reversing device |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710082182.5A Division CN106812692A (en) | 2015-02-09 | 2015-02-09 | A kind of construction method of water pump flap automatic cover-turning device |
| CN201710082184.4A Division CN106837776A (en) | 2015-02-09 | 2015-02-09 | Water pump flap automatic cover-turning device |
| CN201710082183.XA Division CN106837775A (en) | 2015-02-09 | 2015-02-09 | A kind of water pump flap automatic cover-turning device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763669A CN104763669A (en) | 2015-07-08 |
| CN104763669B true CN104763669B (en) | 2017-05-03 |
Family
ID=53645691
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710082184.4A Pending CN106837776A (en) | 2015-02-09 | 2015-02-09 | Water pump flap automatic cover-turning device |
| CN201710082183.XA Pending CN106837775A (en) | 2015-02-09 | 2015-02-09 | A kind of water pump flap automatic cover-turning device |
| CN201710082182.5A Pending CN106812692A (en) | 2015-02-09 | 2015-02-09 | A kind of construction method of water pump flap automatic cover-turning device |
| CN201510067399.XA Expired - Fee Related CN104763669B (en) | 2015-02-09 | 2015-02-09 | Automatic water pump flap valve reversing device |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710082184.4A Pending CN106837776A (en) | 2015-02-09 | 2015-02-09 | Water pump flap automatic cover-turning device |
| CN201710082183.XA Pending CN106837775A (en) | 2015-02-09 | 2015-02-09 | A kind of water pump flap automatic cover-turning device |
| CN201710082182.5A Pending CN106812692A (en) | 2015-02-09 | 2015-02-09 | A kind of construction method of water pump flap automatic cover-turning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN106837776A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112796286B (en) * | 2020-09-02 | 2022-12-06 | 中国水产科学研究院渔业机械仪器研究所 | Fish collecting device suitable for dam fish collecting and transporting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| HU166856B (en) * | 1973-07-16 | 1975-06-28 | ||
| US4128111A (en) * | 1976-06-18 | 1978-12-05 | Hansen George E | Wafer swing check valves |
| FR2902142B1 (en) * | 2006-06-09 | 2008-09-05 | Snecma Sa | SYSTEM FOR DISCHARGING A LOW PRESSURE COMPRESSOR FROM TURBOMACHINE |
| CN101358445A (en) * | 2007-08-01 | 2009-02-04 | 贺勍 | Control method of shutter gate hydraulic water power interactive control |
| JP5015022B2 (en) * | 2008-01-24 | 2012-08-29 | 株式会社荏原製作所 | Pump equipment and flap equipment flap prevention method for pump equipment |
| CN202048243U (en) * | 2011-05-04 | 2011-11-23 | 锦州重型水泵有限公司 | Energy saving check valve device |
| CN102296576B (en) * | 2011-05-24 | 2013-08-14 | 浙江衢州河口闸门有限公司 | Full-open type hydraulic control flap gate and using method thereof |
| CN202252162U (en) * | 2011-09-09 | 2012-05-30 | 安徽红星阀门有限公司 | Slowly-closing rubber flap check valve |
| CN202520999U (en) * | 2012-03-10 | 2012-11-07 | 锦州万泰智能节能设备制造有限公司 | Pressure-changing energy-saving check valve |
| CN103966984B (en) * | 2013-01-29 | 2016-06-22 | 上海市政工程设计研究总院（集团）有限公司 | Sleeping gate under a kind of lever driving |
| CN103206561A (en) * | 2013-05-02 | 2013-07-17 | 武汉大学 | Energy-saving reversed-opening type flap valve |
| CN204458470U (en) * | 2015-02-09 | 2015-07-08 | 张朝利 | A kind of water pump flap automatic cover-turning device |
-
2015
- 2015-02-09 CN CN201710082184.4A patent/CN106837776A/en active Pending
- 2015-02-09 CN CN201710082183.XA patent/CN106837775A/en active Pending
- 2015-02-09 CN CN201710082182.5A patent/CN106812692A/en active Pending
- 2015-02-09 CN CN201510067399.XA patent/CN104763669B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812692A (en) | 2017-06-09 |
| CN106837775A (en) | 2017-06-13 |
| CN106837776A (en) | 2017-06-13 |
| CN104763669A (en) | 2015-07-08 |
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