CN105650317B - A kind of thin film pressure reducing valve - Google Patents
A kind of thin film pressure reducing valve Download PDFInfo
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- CN105650317B CN105650317B CN201410648237.0A CN201410648237A CN105650317B CN 105650317 B CN105650317 B CN 105650317B CN 201410648237 A CN201410648237 A CN 201410648237A CN 105650317 B CN105650317 B CN 105650317B
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- film
- valve
- pressure reducing
- plug
- fexible
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Abstract
The invention discloses a kind of thin film pressure reducing valves, including valve seat and valve deck, and valve chamber is formed between the two, the valve chamber is equipped with valve chamber import and valve chamber exports, the thin film pressure reducing valve further comprises the core assembly for adjusting pressure, the core assembly can move back and forth, the core assembly includes plug and fexible film, the plug is located in the valve chamber import, the fexible film is mounted between the valve seat and the valve deck, the middle part of the fexible film is connected with the plug, spacing between the valve deck and the fexible film gradually increases along the direction of the ecto-entad of the valve deck.Thin film pressure reducing valve provided by the invention is at low cost, simple and reliable for structure, performance is stable, service life is long.
Description
Technical field
The present invention relates to pressure loading valves, more particularly, to thin film pressure reducing valve.
Background technology
In sanitary bath equipment used in everyday, permanent stable water outlet is the important parameter of assessment equipment performance height.
Since there may be differences for the water supply pressure between different user, sanitary bath equipment stable water outlet is directly affected.If hydraulic pressure is excessive, surpass
Go out its use scope, product water-saving function will be caused to lose, or even damage product.Therefore, it is necessary to pressure reducing valves to reduce hydraulic pressure, make
Hydraulic pressure is in suitable use scope, ensures that equipment is normally used.
Pressure reducing valve appropriate is also needed in other systems for transmitting, distributing liquid or gas, by pressure control
System is in appropriate range.
The pressure reducing valve of existing flexible thin film type is matched with correspondingly core assembly come control valve using rubber flexible film
The size of door entrance makes the pressure of valve export be correspondingly made available adjusting, ensure that decompression to control valve flow resistance
Stability.Compared to other types of pressure reducing valve, such as Bellows reducing valve and piston reducing valve, fexible film decompression
Valve has many advantages, such as at low cost, No leakage, high sensitivity.But rubber flexible film is easy to aging and applicable pressure is low, in outside
It when hydraulic pressure is higher, is easily damaged, need to often be used with corresponding to enhance part combination, structure is relative complex, and cost is caused to increase.
Therefore, it is necessary to design a kind of thin film pressure reducing valve so that the structure of thin film pressure reducing valve is simple, applicable pressure limit
Big and service life is long.
Invention content
In view of this, that the object of the present invention is to provide a kind of structures is simpler, decompression performance is good, film with long service life
Pressure reducing valve.
In order to solve the above technical problem, the present invention provides thin film pressure reducing valve include valve seat and valve deck, the valve deck peace
On the valve seat, and valve chamber is formed between the two, the valve chamber is equipped with valve chamber import and valve chamber exports, and the film subtracts
Pressure valve further comprises that the core assembly for adjusting pressure, the core assembly can move back and forth, the core assembly packet
Include plug and fexible film, the plug is located in the valve chamber import, the fexible film be mounted on the valve seat with it is described
Between valve deck, the middle part of the fexible film is connected with the plug, the spacing between the valve deck and the fexible film
Gradually increase along the direction of the ecto-entad of the valve deck.
Further, the fexible film includes the film mounting portion set gradually from outer edge to center, film curved portion
With film interconnecting piece, the film mounting portion is arranged between the valve deck and the valve seat, the film interconnecting piece with it is described
The upper end of plug is connected, and the film curved portion is in the arc that Open Side Down.
Further, the valve deck is equipped with valve deck support portion, and the valve deck support portion is in opposite with the film curved portion
The arc answered, is equipped with gap between the film curved portion and the valve deck support portion, the gap is from the film mounting portion
Gradually increase to the film interconnecting piece.
Further, the thickness of the film mounting portion is more than the thickness of the film curved portion, the film interconnecting piece
Thickness is more than the thickness of the film curved portion.
Further, the valve chamber import is tapered, and the plug is also tapered.
Further, the core assembly further includes fixing screws, and the middle part of the plug is equipped with plug through-hole, the fixation
Screw passes through to be fixedly connected in the middle part of the plug through-hole and the fexible film.
Further, pressure regulating spring is additionally provided on the fexible film, described pressure regulating spring one end is connected to institute
It states on fexible film, the other end is connected with the lower surface of the valve deck.
Further, it is additionally provided with sealing ring between the valve seat and the fexible film.
Further, the fexible film is plastic material.
Further, the plastic material is polypropylene.
Using above-mentioned technical proposal, have the advantages that：
Thin film pressure reducing valve provided by the invention, due to being clamped with fexible film between valve deck and valve seat, fexible film exists
It can pump in valve chamber, and the spacing between valve deck and fexible film gradually increases along ecto-entad, avoids close to valve
The edge fexible film deflection for covering outside is excessive, fatigue failure, or even the risk of damage occurs, improves the use of fexible film
Service life.Meanwhile simplifying the structure of pressure reducing valve.
Description of the drawings
Fig. 1 is the structural schematic diagram of thin film pressure reducing valve in one embodiment of the invention.
The reference numeral table of comparisons：
1- valve decks；2- valve seats；3- valve chambers；
4- core assemblies；5- sealing rings；
11- valve deck support portions；21- intake channels；22- exit passageways；
31- uuper valve chambers；32- lower valve chambers；33- valve chamber imports；
34- valve chambers export；41- fexible films；42- plugs；
43- pressure regulating springs；44- fixing screws；
411- film mounting portions；412- film curved portions；413- film interconnecting pieces.
Specific implementation mode
Specific implementation mode to further illustrate the present invention below in conjunction with the accompanying drawings.It should be noted that in being described below
The word "front", "rear", "left", "right", the "up" and "down" that use refer to the direction in attached drawing, word "inner" and "outside" difference
Refer to the direction towards or away from geometric center of specific component.
As shown in Figure 1, thin film pressure reducing valve provided in this embodiment, including valve seat 2 and valve deck 1, valve deck 1 are mounted on valve seat 2
On, and valve chamber 3 is formed between the two, valve chamber 3 is equipped with valve chamber import 33 and valve chamber outlet 34, and thin film pressure reducing valve further comprises
Core assembly 4 for adjusting pressure, 4 reciprocable of core assembly, core assembly 4 include plug 42 and fexible film 41,
Plug 42 is located in valve chamber import 33, and fexible film 41 is mounted between valve seat 2 and valve deck 1, the middle part of fexible film 41 with it is stifled
First 42 are connected, and the spacing between valve deck 1 and fexible film 41 gradually increases along the direction of the ecto-entad of valve deck 1.
The outer edge that the direction of above-mentioned ecto-entad specifically refers to valve deck 1 is directed toward the direction at its center.In valve seat 2 be equipped with into
Mouth channel 21 and exit passageway 22, intake channel 21 are connected with valve chamber import 33, and exit passageway 22 is connected with valve chamber outlet 34
It is logical.Valve chamber 3 is separated uuper valve chamber 31 and lower valve chamber 32 by fexible film 41.Uuper valve chamber 31 is moved upwards for fexible film 41 and is provided
The space of movement.Lower valve chamber 32 is for intake channel 21 to be connected with exit passageway 22.
Above-mentioned pressure reducing valve specific work process is that external flowing water is flowed into from the intake channel 21 of valve seat 2 in pressure reducing valve, cocurrent
It crosses valve chamber import 33 to enter in lower valve chamber 32, then enters exit passageway 22 through valve chamber outlet 34, finally flow out valve body.Due to spool
The plug 42 of component 4 is located in valve chamber import 33, in this way, external flowing water is needed by between plug 42 and valve chamber import 33
Clearance flow enters in lower valve chamber 32, and the gap between plug 42 and valve chamber import 33 flows into the pressure of lower valve chamber 32 by external flowing water is influenced
Power.Specifically, when hydraulic pressure is larger at valve chamber import 33, under gap of the flow between valve chamber import 33 and plug 42 flows into
After in valve chamber 32, larger pressure is generated in lower valve chamber 32, and then one is applied to fexible film 41 and is upwarded pressure, make flexibility
Film 41 moves up.Since the middle part of fexible film 41 is connected with plug 42, when fexible film 41 moves up, drive
Plug 42 moves up, and leads to the gap shrinks between plug 42 and valve chamber import 33, increases the flowing at valve chamber import 33
Resistance keeps the outlet pressure of valve chamber outlet 34 regulated to reduce the pressure for entering flow in lower valve chamber 32, keeps suitable
In.
The outer edge of fexible film 41 is fixedly mounted between valve seat 2 and valve deck 1, and middle part is connected with plug 42.It is soft
The outer edge of property film 41, which clamps, to be fixed between valve deck 1 and valve seat 2, and outer edge remains stationary.When fexible film 41
By when the thrust of flow, the middle part of fexible film 41 moves up in lower valve chamber 32, pull fexible film 41 that elastic change occurs
Shape.Since fexible film 41 itself has certain elasticity, after moving up elastic deformation occur, generate one it is downward
Elastic force, to balance the flow in lower valve chamber 32 to its thrust.When external water stream disappears, fexible film 41 can return to initially
State.
Due to the gradually increasing on the direction of ecto-entad along valve deck 1 of the spacing between valve deck 1 and fexible film 41, this
Sample keeps uuper valve chamber 31 minimum in the space at valve deck 1, and in the space of 1 medium position of valve deck maximum, therefore, this structure
The deformation of fexible film 41 is constrained, i.e. fexible film 41 is smaller in 1 outer peripheral deflection of close valve deck, in fexible film 41
The deflection in portion is larger.This deformation mode keeps the outer edge deformation quantity of fexible film 41 small, reduces the stress collection at the position
In, so as to avoid the failure even service life of the pressure reducing valve of rupture, raising of fexible film 41.
In the present embodiment, fexible film 41 along from outer edge to center successively include film mounting portion 411, film curved portion
412 and film interconnecting piece 413, film mounting portion 411 is arranged between valve deck 1 and valve seat 2, film interconnecting piece 413 and plug 42
Upper end be connected, film curved portion 412 in the arc that Open Side Down, valve deck 1 be equipped with for backstop film curved portion 412 to
The valve deck support portion 11 of upper movement, valve deck support portion 11 are in arcuate shape corresponding with film curved portion 412, film curved portion
Gap is equipped between 412 and valve deck support portion 11, which gradually increases from film mounting portion 411 to film interconnecting piece 413.
Film mounting portion 411 is mounted between valve deck 1 and valve seat 2, and entire fexible film 41 is made to be installed in valve chamber 3.It is thin
Film curved portion 412 is provided between film mounting portion 411 and film interconnecting piece 413.When external water stream enters from valve chamber import 33
After lower valve chamber 32, film interconnecting piece 413 is pushed to move up, drives film curved portion 412 that elastic deformation occurs upwards.Film connects
During socket part 413 moves up, elastic deformation will not occurs in its own.Film curved portion 412 uses cambered design, optimization
The stress of fexible film 41, stress distribution when fexible film being made to deform upon is uniform, and stress is avoided excessively to concentrate.Exist simultaneously
Valve deck 1 is equipped with valve deck support portion 11 corresponding with film curved portion 412, and valve deck support portion 11 is also in the arc that Open Side Down
Shape, there are gap between valve deck support portion 11 and film curved portion 412, which has given the sky of 41 upward deformation of fexible film
Between, and the possibility of 41 unlimited deformation of fexible film is limited, it avoids 412 deformation quantity of film curved portion excessive, ensure that flexibility
The fatigue life of film 41.
Above-mentioned gap from film mounting portion 411 to film interconnecting piece 413 gradually increase, this make film curved portion 412 to
When upper movement, deformation quantity is gradually increased from film mounting portion 411 to film interconnecting piece 413, has advanced optimized film arc
The deformation space in portion 412 avoids 412 local deformation of film curved portion excessive and generates the risk to fail.
In the present embodiment, as shown in Figure 1, the thickness of film mounting portion 411 is more than the thickness of film curved portion 412, film
The thickness of interconnecting piece 413 is more than the thickness of film curved portion 412.Fexible film 41 forms the structure of " thick-thin-thick " in this way.It is thin
Film mounting portion 411 and the thickness of 412 connecting place of film curved portion are gradually thinning from film mounting portion 411 to film curved portion 412.
The thickness of 413 connecting place of film curved portion 412 and film interconnecting piece is gradual from film curved portion 412 to film interconnecting piece 413
It thickens.The thickness of film mounting portion can be much larger than the thickness of film curved portion, and the thickness of film interconnecting piece 413 can also be long-range
It is 5 times or more of the thickness of film curved portion in the thickness of the thickness of film curved portion 412, such as film mounting portion.Film connects
The thickness of socket part 413 is also 5 times of the thickness of film curved portion or more.Such design can reduce film mounting portion 411 with
The stress concentration of 412 connecting place of film curved portion and film curved portion 412 and 413 connecting place of film interconnecting piece, improves flexibility
The service life of film 41.
The thickness of film curved portion 412 will be depending on the volumetric pressure in valve chamber 3, if the thickness of film curved portion 412
Degree is too thin, then insufficient strength, and plastic deformation easily occurs and fails.If the thickness of film curved portion 412 is too thick, film arc
Portion 412 is not susceptible to flexible deformation, to limit the upward movement of film interconnecting piece 413, and then influences the decompression of pressure reducing valve
Effect.In the present embodiment, the minimum thickness of 41 film curved portion 412 of fexible film is not less than 0.1mm, and maximum gauge is not less than
0.8mm, 412 gradient thickness of film curved portion is not to generate stress concentration.
In the present embodiment, as shown in Figure 1, valve chamber import 33 is tapered, cross-sectional area is gradually reduced from down to up, plug
42 is also tapered, and cross-sectional area is gradually reduced from down to up.Valve chamber import 33 and plug 42 use conical by its shape, such plug
42 when moving up and down, so that it may to adjust the gap between plug 42 and valve chamber import 33, and then adjust the flowing of valve chamber import 33
Resistance realizes pressure reducing valve effect of easing stress.
In the present embodiment, as shown in Figure 1, core assembly 4 further includes fixing screws 44, the middle part of plug 42 is logical equipped with plug
Hole, fixing screws 44 pass through to be fixedly connected in the middle part of plug through-hole and fexible film.Fexible film 41 is connected with plug 42 using screw
Mode is connect, it is easy to disassemble.When breakage occur in fexible film 41 or plug 42, it is convenient for changing.Fixing screws 44 can be with self tapping spiral shell
Nail, when using tapping screw, plug through-hole need not pre-set screw thread, reduce the labor content of plug 42, reduce
Production cost, while installation is also convenient for.
In the present embodiment, as shown in Figure 1, pressure regulating spring 43 is additionally provided on fexible film 41, pressure regulating spring 43
One end is connected on fexible film 41, and the other end is connected with the lower surface of valve deck 1.43 one end of pressure regulating spring is connected to film
On interconnecting piece 413, the other end is connected on valve deck 1.When the flow of external larger hydraulic pressure enters lower valve chamber 32 from valve chamber import 33
Afterwards, it will push film interconnecting piece 413 that larger movement occurs upwards, the deformation quantity of fexible film 41 made to be possible to exceed its safety
Range and fail.In order to avoid this failure risk, while the pressure reducing valve in the present embodiment can be enable to meet hydraulic pressure adjusting again, this
When on fexible film 41 be arranged pressure regulating spring 43, when on fexible film 41 to movement when, pressure regulating spring 43 is to soft
Property film 41 apply a downward elastic force, this downward elastic force can offset or balancing flexible film 41 suffered by part
Upwards thrust reduces the deformation quantity of fexible film 41, ensures that elastic deformation occurs for fexible film 41, can both ensure that subtract in this way
The security performance of pressure valve, while the pressure scope of application of Enlarging decompression valve.
Regulation button can also be set on certain pressure regulating spring 43, for adjusting pressure regulating spring 43 to flexible thin
The precompression of film 41 adjusts effect of easing stress to facilitate pressure reducing valve according to different decompression requirements.
In the present embodiment, sealing ring 5 is additionally provided between valve seat 2 and fexible film 41.Sealing ring 5 improve valve seat 2 with it is soft
The leakproofness of property 41 junction of film.
In the present embodiment, above-mentioned fexible film 41 is plastic material.Specifically, plastic material can be polypropylene material
Matter, polypropylene material have good fatigue property, while again have preferable acid resistance, alkali resistance and oil resistivity and
The performance of other resistance to chemical substances.Therefore, the stable chemical performance of polypropylene material, so non-aging and cheap.
Certainly, fexible film 41 can also nylon, flexible polyvinyl chloride or other similar stable chemical performances material.
Above-described is only the principle of the present invention and preferred embodiment.It should be pointed out that for the common skill of this field
For art personnel, on the basis of the principle of the invention, several other modifications can also be made, also should be regarded as the protection model of the present invention
It encloses.
Claims (9)
1. a kind of thin film pressure reducing valve, including valve seat and valve deck, and valve chamber is formed between the two, the valve chamber is equipped with valve chamber import
It is exported with valve chamber, which is characterized in that the thin film pressure reducing valve further comprises the core assembly for adjusting pressure, the spool
Component can move back and forth, and the core assembly includes plug and fexible film, and the plug is located in the valve chamber import, institute
It states fexible film to be mounted between the valve seat and the valve deck, the middle part of the fexible film is connected with the plug, institute
The spacing stated between valve deck and the fexible film gradually increases along the direction of the ecto-entad of the valve deck；
The fexible film includes that the film mounting portion set gradually from outer edge to center, film curved portion are connected with film
Portion, the film mounting portion are arranged between the valve deck and the valve seat, the upper end of the film interconnecting piece and the plug
It is connected, the film curved portion is in the arc that Open Side Down.
2. thin film pressure reducing valve according to claim 1, which is characterized in that the valve deck is equipped with valve deck support portion, described
Valve deck support portion is in arc corresponding with the film curved portion, is set between the film curved portion and the valve deck support portion
There are gap, the gap gradually to increase from the film mounting portion to the film interconnecting piece.
3. thin film pressure reducing valve according to claim 2, which is characterized in that the thickness of the film mounting portion is more than described thin
The thickness of film curved portion, the thickness of the film interconnecting piece are more than the thickness of the film curved portion.
4. thin film pressure reducing valve according to claim 1, which is characterized in that the valve chamber import is tapered, the plug
It is tapered.
5. thin film pressure reducing valve according to claim 1, which is characterized in that the core assembly further includes fixing screws, institute
The middle part for stating plug is equipped with plug through-hole, and the fixing screws pass through the plug through-hole to connect with fixed in the middle part of the fexible film
It connects.
6. thin film pressure reducing valve according to claim 1, which is characterized in that be additionally provided with pressure on the fexible film and adjust bullet
Spring, described pressure regulating spring one end are connected on the fexible film, and the other end is connected with the lower surface of the valve deck.
7. thin film pressure reducing valve according to claim 1, which is characterized in that also set between the valve seat and the fexible film
There is sealing ring.
8. thin film pressure reducing valve according to claim 1, which is characterized in that the fexible film is plastic material.
9. thin film pressure reducing valve according to claim 8, which is characterized in that the plastic material is polypropylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648237.0A CN105650317B (en) | 2014-11-14 | 2014-11-14 | A kind of thin film pressure reducing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410648237.0A CN105650317B (en) | 2014-11-14 | 2014-11-14 | A kind of thin film pressure reducing valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105650317A CN105650317A (en) | 2016-06-08 |
| CN105650317B true CN105650317B (en) | 2018-10-19 |
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ID=56479944
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410648237.0A Active CN105650317B (en) | 2014-11-14 | 2014-11-14 | A kind of thin film pressure reducing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105650317B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106693105A (en) * | 2016-12-27 | 2017-05-24 | 江苏苏云医疗器材有限公司 | Sensitive blood return infusion apparatus |
| CN113795695B (en) * | 2019-05-09 | 2024-02-02 | 利拉伐控股有限公司 | Membrane for moving a valve disk of a control valve and control valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072964A (en) * | 2004-12-10 | 2007-11-14 | 喜开理株式会社 | Diaphragm valve |
| CN101790657A (en) * | 2007-08-29 | 2010-07-28 | 株式会社京浜 | Pressure reducing valve |
| CN103363149A (en) * | 2012-03-28 | 2013-10-23 | 骊住株式会社 | Diaphragm valve body of flow control valve |
| CN203516874U (en) * | 2013-09-25 | 2014-04-02 | 周裕佳 | Constant-pressure valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL156797A (en) * | 2003-07-06 | 2007-06-17 | Raphael Valves Ind 1975 Ltd | Diaphragm and hydraulically-operated valve using same |
| JP4217173B2 (en) * | 2004-02-10 | 2009-01-28 | 株式会社ケーヒン | Pressure reducing valve |
-
2014
- 2014-11-14 CN CN201410648237.0A patent/CN105650317B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101072964A (en) * | 2004-12-10 | 2007-11-14 | 喜开理株式会社 | Diaphragm valve |
| CN101790657A (en) * | 2007-08-29 | 2010-07-28 | 株式会社京浜 | Pressure reducing valve |
| CN103363149A (en) * | 2012-03-28 | 2013-10-23 | 骊住株式会社 | Diaphragm valve body of flow control valve |
| CN203516874U (en) * | 2013-09-25 | 2014-04-02 | 周裕佳 | Constant-pressure valve |
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| Publication number | Publication date |
|---|---|
| CN105650317A (en) | 2016-06-08 |
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