CN107339471A - A kind of barrier film buffer-type rubber flap check valve - Google Patents
A kind of barrier film buffer-type rubber flap check valve Download PDFInfo
- Publication number
- CN107339471A CN107339471A CN201710070813.1A CN201710070813A CN107339471A CN 107339471 A CN107339471 A CN 107339471A CN 201710070813 A CN201710070813 A CN 201710070813A CN 107339471 A CN107339471 A CN 107339471A
- Authority
- CN
- China
- Prior art keywords
- barrier film
- valve
- rubber flap
- flap
- diaphragm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1825—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with flexible valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
- F16K47/023—Means in valves for absorbing fluid energy for preventing water-hammer or noise for preventing water-hammer, e.g. damping of the valve movement
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention relates to a kind of barrier film buffer-type rubber flap check valve, including valve body, the rubber flap that is fixed on the bonnet of valve body upper wall and is arranged at valve body inner flow passage, the check-valves also include the small valve of barrier film Slow Close being arranged on rubber flap.Compared with prior art, the present invention has the advantages that simple in construction, cost is low, reliable, closed safe.
Description
Technical field
The present invention relates to a kind of water channel rubber flap check valve, more particularly, to a kind of barrier film buffer-type rubber clack non-return
Valve.
Background technology
In water system, for the refluence of waterproof after termination of pumping, check-valves is a necessary option, and wherein rubber clack stops
It is even more the very wide product of use range in a water drainage-supply system to return valve, and most traditional rubber flap check valve is very simple only 3
Valve member (valve body, bonnet, flap) group, close for one-part form close, if system back pressure, it is bigger when, it is easy to produce water hammer,
Pipeline safety is affected.So there is a kind of with oleo cushion cylinder, both ends pass in centering later, larger product in the market
The water hammer when rubber flap check valve for closing and (delaying after first quick closing valve and close) is to eliminate closing.Though the product reaches in the function of water hammer-resistant
Purpose, but due to using oil cylinder and energy storage tank, to carry out regular maintenance prevents oil leak and gas leakage, and manufacturing cost is higher, and
Low-pressure state, which may also create, to close, a large amount of leak situations.
Chinese patent ZL201520189344.1 discloses a kind of micro- pump control valve that blocks water of swash plate, by valve body and is arranged on valve
Internal ramp type flap, valve shaft and hydraulic shock absorber forms, and its function is consistent with oleo cushion formula rubber flap check valve.Close
Elder generation's quick closing valve, rear slow pass, can prevent water hammer when closing, and oil hydraulic system needs to safeguard, if low-pressure state adjusts gas, oil pressure not in time,
May produce to close, a large amount of leak situations.
The content of the invention
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of simple in construction, cost
Low, reliable, closed safe barrier film buffer-type rubber flap check valve.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of barrier film buffer-type rubber flap check valve, including valve body, be fixed on the bonnet of valve body upper wall and be arranged on valve
Rubber flap at internal runner, the check-valves also include the small valve of barrier film Slow Close being arranged on rubber flap.
The described small valve of barrier film Slow Close includes barrier film chamber lid, diaphragm, diaphragm pressing plate, fixing axle, back-moving spring, complete encapsulated small
Flap and one-way throttle valve, described barrier film chamber lid form the valve body of the small valve of barrier film Slow Close, described diaphragm both ends with connector
The junction in barrier film chamber lid and connector is respectively fixedly connected with, and is separated out diaphragm cavity, diaphragm is folded with outside described diaphragm
Pressing plate, described fixing axle one end are fixed through diaphragm and diaphragm pressing plate and by nut, and the other end passes through complete encapsulated small flap
Back-moving spring is arranged outside end set one-way throttle valve, described fixing axle afterwards, and inside opens up axially connection barrier film
The runner hole of chamber and one-way throttle valve.
When water flowing state, i.e. rubber flap opening, complete encapsulated small flap is also at opening, when entrance point does not have
Have pressure, the port of export has pressure, rubber flap in off position when, complete encapsulated small flap then slowly closing.Prevent rubber flap
Close and caused prominent pressure, i.e. water hammer suddenly.
The pressure-bearing diameter of described diaphragm pressing plate is more than complete encapsulated small flap.
Described connector bottom offers influent stream road junction, and is opened and closed by the action of complete encapsulated small flap, even
Offered in the side wall of junctor connected with influent stream road junction go out runner mouth, described influent stream road junction is located at the import of rubber flap
Side, the described outlet side for going out runner mouth and being located at rubber flap.
The described small valve of barrier film Slow Close also includes being arranged on the water retaining cover at rubber flap inlet side, and described water retaining cover is set
Put in the outside of one-way throttle valve.
Described one-way throttle valve is provided with filter screen.
Throttle orifice is provided among the valve element of described one-way throttle valve, one-way throttle valve runner is set around throttle orifice,
The aperture of described throttle orifice is less than one-way throttle valve runner.
Described rubber flap is molded sulfidization molding by circular steel plate, circular shaft, green glue stock and cord, and its upper end is by bonnet
Groove push down, started shipment in valve pocket as rotation dynamic, automatically open up when inlet side water, closed automatically when port of export water.
Compared with prior art, the present invention has advantages below：
First, it is simple in construction, cost is low：Existing oleo cushion formula check-valves, it is necessary to be equipped with oil cylinder, energy storage tank, unidirectional
Choke valve and oil pipe etc. form, and structure is more complicated, and oil cylinder cost is higher, barrier film buffer-type rubber flap check valve of the present invention, knot
Structure is compact, it is compact, do not take up space, cost it is relatively low.
2nd, reliable, closed safe：Existing oleo cushion formula check-valves, must keep during operation certain oil pressure and
Air pressure, oil leak or gas leakage, which such as occurs, to fail, so must inspect periodically, and when system back pressure is relatively low, if do not had
Oil pressure, the air pressure that adjustment oil cylinder and accumulation of energy fill in time, it may occur that situation about can not close, largely flowing backwards, barrier film of the present invention
Its slow-closure type valve of buffer-type rubber flap check valve is due to using itself built-in waterpower barrier film control form, it is not necessary to exterior power, makes
With period without put examine, therefore realize it is non-maintaining, reliable, and due to set it is minimum using pressure (0.01~
0.02Mpa), the extreme portions pressure working condition under nominal pressure is can be suitably used for, and does not need any inspection and adjustment, operating cost
It is very low.
Brief description of the drawings
Fig. 1 is water flowing full-gear structural representation of the present invention.
Fig. 2 is inlet side water pump termination of pumping momentary status schematic diagram of the present invention.
Fig. 3 is the state signal that inlet side water pump of the present invention has been closed down and rubber flap and complete encapsulated small flap are turned off
Figure.
Fig. 4 is the structural representation of the small valve of barrier film Slow Close.
Fig. 5 is barrier film buffer-type rubber flap check valve engineering example figure of the present invention.
Fig. 6 is the general structure schematic diagram of the present invention.
Wherein, 1, valve body, 2, bonnet, 3, rubber flap, 4, barrier film chamber lid, 5, diaphragm, 6, diaphragm pressing plate, 7, fixing axle,
8th, back-moving spring, 9, complete encapsulated small flap, 10, one-way throttle valve, 11, filter screen, 12, water retaining cover, 21, low pool, 22, water
Pump, 23, barrier film buffer-type rubber flap check valve, 24, head-tank.
Embodiment
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
The operation principle of the present invention is as follows：
Barrier film buffer-type rubber flap check valve of the present invention mainly uses exit of pump, as shown in figure 1, the rubber flap when turn on pump
3 open rapidly under the promotion of current, and whole valve cavity pressure is in poised state at once, and complete encapsulated small flap 9 is in water retaining cover
Separate water impact under 12 protection, and breakdown action done under the promotion by back-moving spring 8, while discharge the water in diaphragm chamber,
Until standard-sized sheet；Termination of pumping moment, rubber flap 3 was closed rapidly due to being acted on by system back pressure, but complete encapsulated small flap 9 is due to receiving
Being more than small flap by diaphragm pressing plate 6 and the complete encapsulated small difference in areas diaphragm pressing plate of flap 9 is influenceed to make pass valve events, and due to
The water of diaphragm chamber is limited by the small throttling spool hole of valve 10 of one-way throttle, can only slowly be discharged, as shown in Fig. 2 in rubber flap 3
The moment of closing, complete encapsulated small flap 9 are also in preparation slowly closing at full-gear, and now complete encapsulated small flap 9, which is in, lets out
Pressure condition prevents the prominent pressure of pipe network；Passage over time, complete encapsulated small flap 9 slowly close valve, as shown in figure 3, up to fully closed, just
It is by the slowly closing of complete encapsulated small flap 9, the energy for effectively releasing the quick closedown of rubber flap 3 and producing, prevents
The generation of pump-stopping water hammer, protects network security to use.
As shown in figure 4, figure is the structural representation of the small valve of barrier film Slow Close.
As shown in fig. 6, figure is the general structure schematic diagram of the present invention.
As shown in figure 5, the most common applying working condition of barrier film buffer-type rubber flap check valve of the present invention is for drainage system
Water level promoting, i.e., head-tank is risen to by the water extraction of pump handle low pool, when water pump termination of pumping, product of the present invention will
Play the effect of safety shutdown.
Claims (8)
1. a kind of barrier film buffer-type rubber flap check valve, including valve body (1), it is fixed on the bonnet (2) of valve body upper wall and sets
Rubber flap (3) at valve body (1) inner flow passage, it is characterised in that the check-valves also includes being arranged on rubber flap (3)
The small valve of barrier film Slow Close.
A kind of 2. barrier film buffer-type rubber flap check valve according to claim 1, it is characterised in that described barrier film Slow Close
Small valve includes barrier film chamber lid (4), diaphragm (5), diaphragm pressing plate (6), fixing axle (7), back-moving spring (8), complete encapsulated small flap (9)
With one-way throttle valve (10), described barrier film chamber lid (4) forms the valve body of the small valve of barrier film Slow Close, described film with connector (13)
Piece (5) both ends are respectively fixedly connected with the junction in barrier film chamber lid (4) and connector (13), and are separated out diaphragm cavity, described
Pressing diaphragm plate (6) is folded with outside diaphragm (5), described fixing axle (7) one end is through diaphragm (5) and diaphragm pressing plate (6) and passes through
Nut is fixed, and the other end is passed through after complete encapsulated small flap (9) in end set one-way throttle valve (10), described fixing axle (7)
Outside is arranged back-moving spring (8), and inside opens up the axially runner hole of connection diaphragm cavity and one-way throttle valve (10).
A kind of 3. barrier film buffer-type rubber flap check valve according to claim 2, it is characterised in that described diaphragm pressing plate
(6) pressure-bearing diameter is more than complete encapsulated small flap (9).
A kind of 4. barrier film buffer-type rubber flap check valve according to claim 2, it is characterised in that described connector
(13) bottom offers influent stream road junction, and is opened and closed by the action of complete encapsulated small flap (9), the side wall of connector (13)
On offer connected with influent stream road junction go out runner mouth, described influent stream road junction is located at the inlet side of rubber flap (3), described
Go out the outlet side that runner mouth is located at rubber flap (3).
A kind of 5. barrier film buffer-type rubber flap check valve according to claim 4, it is characterised in that described barrier film Slow Close
Small valve also includes being arranged on the water retaining cover (12) at rubber flap (3) inlet side, and described water retaining cover (12) is arranged on unidirectional section
Flow the outside of valve (10).
A kind of 6. barrier film buffer-type rubber flap check valve according to claim 2, it is characterised in that described one-way throttle
Valve (10) is provided with filter screen (11).
A kind of 7. barrier film buffer-type rubber flap check valve according to claim 2, it is characterised in that described one-way throttle
Throttle orifice is provided among the valve element of valve (10), one-way throttle valve runner, the aperture of described throttle orifice are set around throttle orifice
Less than one-way throttle valve runner.
A kind of 8. barrier film buffer-type rubber flap check valve according to claim 1, it is characterised in that described rubber flap
(3) sulfidization molding is molded by circular steel plate, circular shaft, green glue stock and cord.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070813.1A CN107339471B (en) | 2017-02-09 | 2017-02-09 | Diaphragm buffer type rubber flap check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710070813.1A CN107339471B (en) | 2017-02-09 | 2017-02-09 | Diaphragm buffer type rubber flap check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107339471A true CN107339471A (en) | 2017-11-10 |
| CN107339471B CN107339471B (en) | 2023-08-08 |
Family
ID=60223196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710070813.1A Active CN107339471B (en) | 2017-02-09 | 2017-02-09 | Diaphragm buffer type rubber flap check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107339471B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259997A (en) * | 2019-06-28 | 2019-09-20 | 浙江万龙机械有限公司 | A kind of swing check valve being built-in with Slow Close mechanism and water hammer-resistant check-valves |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341840A (en) * | 1993-11-12 | 1994-08-30 | Tom Wheatley Valve Company | Bonnetless swing check valve |
| CN102042428A (en) * | 2009-10-19 | 2011-05-04 | 王晓宏 | Novel swing check valve |
| CN102818051A (en) * | 2012-09-05 | 2012-12-12 | 浙江超达阀门股份有限公司 | Check valve capable of reducing pressure of water hammer |
| CN104197050A (en) * | 2014-09-02 | 2014-12-10 | 章华 | Low flow resistance axial-flow type check valve with closing tail section with slow closing protection function |
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN206539740U (en) * | 2017-02-09 | 2017-10-03 | 上海冠龙阀门自控有限公司 | A kind of barrier film buffer-type rubber flap check valve |
-
2017
- 2017-02-09 CN CN201710070813.1A patent/CN107339471B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5341840A (en) * | 1993-11-12 | 1994-08-30 | Tom Wheatley Valve Company | Bonnetless swing check valve |
| CN102042428A (en) * | 2009-10-19 | 2011-05-04 | 王晓宏 | Novel swing check valve |
| CN102818051A (en) * | 2012-09-05 | 2012-12-12 | 浙江超达阀门股份有限公司 | Check valve capable of reducing pressure of water hammer |
| CN104197050A (en) * | 2014-09-02 | 2014-12-10 | 章华 | Low flow resistance axial-flow type check valve with closing tail section with slow closing protection function |
| CN104847930A (en) * | 2015-04-18 | 2015-08-19 | 张新丰 | Slow-closed rotary-opened type check valve capable of preventing water hammer |
| CN206539740U (en) * | 2017-02-09 | 2017-10-03 | 上海冠龙阀门自控有限公司 | A kind of barrier film buffer-type rubber flap check valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259997A (en) * | 2019-06-28 | 2019-09-20 | 浙江万龙机械有限公司 | A kind of swing check valve being built-in with Slow Close mechanism and water hammer-resistant check-valves |
| CN110259997B (en) * | 2019-06-28 | 2020-08-07 | 浙江万龙机械有限公司 | Swing check valve with built-in slow-closing mechanism and waterproof hammer check valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107339471B (en) | 2023-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203297681U (en) | Adjustable slow-closure check valve | |
| CN101709799B (en) | Multifunctional sleeve type energy dissipation valve | |
| CN206539740U (en) | A kind of barrier film buffer-type rubber flap check valve | |
| CN108278393B (en) | A kind of slide valve type guide one-way overflow valve | |
| CN203009946U (en) | Water hammer discharge valve | |
| CN103047457B (en) | Water hammer discharge valve | |
| CN204611055U (en) | A kind of altitude valve | |
| CN107339471A (en) | A kind of barrier film buffer-type rubber flap check valve | |
| CN201014003Y (en) | Automatic regulation float ball valve | |
| CN101876380A (en) | Low-resistance slow-closure type check valve | |
| CN208204110U (en) | The check valve of decompression function built in a kind of band | |
| CN108413099A (en) | It is switched off or on the partition check-valves of oil supply system oil circuit medium back flow | |
| CN202733070U (en) | Check valve capable of reducing water hammer pressure | |
| CN2399577Y (en) | Self-control silencing check valve | |
| CN205896357U (en) | Water conservancy differential type butterfly water pump control valve | |
| CN202215805U (en) | Water attack release valve | |
| CN210716254U (en) | Silent check valve device with sewage discharge function | |
| CN202188180U (en) | Check valve with safety valve | |
| CN207421344U (en) | A kind of multi-functional valve | |
| CN201891144U (en) | Combined multifunctional pump control energy saving valve | |
| CN207848492U (en) | A kind of check-valves with the micro- slow keying effect of more flaps | |
| CN208831816U (en) | A kind of non-return valve | |
| CN211202989U (en) | Anti-reflux valve for water plant pipeline | |
| CN204099324U (en) | A kind of energy-saving fluid power control valve for water pump | |
| CN210196562U (en) | Micro-resistance slow-closing type check valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |