CN101349356B - One-way elastic valve and fluid delivery device used thereby - Google Patents
One-way elastic valve and fluid delivery device used thereby Download PDFInfo
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- CN101349356B CN101349356B CN200810127905XA CN200810127905A CN101349356B CN 101349356 B CN101349356 B CN 101349356B CN 200810127905X A CN200810127905X A CN 200810127905XA CN 200810127905 A CN200810127905 A CN 200810127905A CN 101349356 B CN101349356 B CN 101349356B
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- 239000013013 elastic material Substances 0.000 claims description 2
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Abstract
The invention discloses a one way cushion valve and a fluid conveying device applied to the one way cushion valve, the one way cushion valve comprises a valve body and a valve core placed in the valve body, the valve body is provided with an inlet end and an outlet end, the valve core is a hollow tubular elastic membrane valve core, the shape of the outer wall of the valve core is matched with the shape of the inner wall of the valve body, and the outer wall of the valve core is jointed with the inner wall of the valve body. The fluid conveying device comprises a first one way cushion valve, a second one way cushion valve and a compressible chamber which is communicated with the first one way cushion valve and the second one way cushion valve, and fluid conveying directions limited by the first one way cushion valve and the second one way cushion valve are the same. The fluid conveying device utilizes the one way conducting characteristic of the one way cushion valve to enable fluid to flow from a fluid input end to a fluid output end in one way through the compressible chamber. The one way cushion valve and the fluid conveying device is simple in structure and convenient in use, and can be used in fields of production, life, medical treatment, scientific research and the like.
Description
Technical field
The present invention relates to a kind of one-way valve, relate in particular to unidirectional feather valve that adopts the elastic membrane spool and the fluid delivery system of using this one-way valve.
Background technique
Present one-way valve mainly utilizes common Der Grundsatz der Maschinen; Promptly control the fluid throughput direction through forming passage or closing passage; The general more complicated of the structure of valve, manufacture process requirement is high, and cost of production is high; And sealing is desirable not enough, all can not satisfy people's actual demand in a lot of occasions.
At present; The device of conveyance fluid is mainly realized through pump; Pump needs power to drive usually, the general more complicated of structure, and flow can only be realized through valve; The structure of this complicacy makes it all can not satisfy people's actual demand in a lot of occasions, especially at those directly by people's operation or directly act in people's the device.For instance, in medical industry,, adopt to liquid such as patient's nasal feeding liquid foods more and earlier extract liquid food, be injected into nasogastric tube again, very trouble with syringe owing to there is not suitable feedway.
Summary of the invention
The object of the present invention is to provide a kind of novel unidirectional feather valve structure and the fluid delivery system of application thereof, this unidirectional feather valve has characteristics simple in structure, easy to make, and this fluid delivery system has characteristics easy to use.
The present invention provides a kind of unidirectional feather valve; Comprise valve body and the spool that places in the valve body, this valve body has an entry end and an outlet end, and this spool is one to be the elastic membrane spool of hollow tubular; The inner wall shape of its outer wall shape and valve body is suitable, and the inwall of the outer wall of spool and valve body fits.
In above-mentioned unidirectional feather valve, described elastic membrane spool is at the end opening towards this outlet end, and the relative other end of spool is to this entry end, and this other end has one and is cross-section area at the bottom of the sealing of the bucket shape structure that entry end reduces.
In above-mentioned unidirectional feather valve, described elastic membrane spool is at the end opening towards this outlet end, and the relative the other end of spool is the sealing end, and the entry end of valve body is located at the body wall that this valve body and spool fit and locate.
In above-mentioned unidirectional feather valve; Also comprise spacing limited object is carried out in elastic membrane spool residing position in valve body, it comprises: be arranged on elastic membrane spool two ends block material, be arranged on the supporter that makes it in the spool tube chamber to keep to fit with valve interior wall, pass spool and with its partial fixing in the block material of valve inner, binding that part spool and valve body is bonding at least one of them.
In above-mentioned unidirectional feather valve, the sidewall of described elastic membrane spool is provided with opening, the inner chamber of this open communication elastic membrane spool and the inner chamber of this valve body.
The present invention provides a kind of fluid delivery system in addition; Comprise the first unidirectional feather valve, the second unidirectional feather valve and the compressible chamber that is communicated with first, second unidirectional feather valve; Wherein this first, second unidirectional feather valve is above-mentioned unidirectional feather valve, and the FLUID TRANSPORTATION direction that first, second unidirectional feather valve limited is identical.
In above-mentioned fluid delivery system, described compressible chamber comprises an elastic force flexible pocket by the elastic material making, perhaps comprises a cavity and the piston that can in this cavity, move.
The present invention makes it compared with prior art owing to adopt above technological scheme, has following remarkable advantage:
Unidirectional feather valve of the present invention is simple in structure, and the outer wall of its elastic membrane spool and the inwall of valve body are fitted, and relies on the natural elasticity tension force of elastic membrane spool can form sealing; Under the situation that has forward pressure reduction, along with the variation of pressure reduction, it is opened flexibly; Under the situation that has reverse pressure differential, the sealing state that then can keep shut.Adopt the fluid delivery system of this unidirectional feather valve simple in structure, flexible and convenient operation, adopt compressible chamber as fluid delivery system power, just can guarantee the fluid delivery system proper functioning through manpower.One-way valve of the present invention and fluid delivery system can satisfy the actual demand of people at numerous areas such as production, life, medical treatment, scientific researches.
Description of drawings
For let above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, elaborate below in conjunction with the accompanying drawing specific embodiments of the invention, wherein:
Fig. 1 is the unidirectional feather valve structural representation of the first embodiment of the present invention;
Fig. 2 is embodiment illustrated in fig. 1 at the structural representation that receives under the positive pressure situation;
Fig. 3 is embodiment illustrated in fig. 1 at the structural representation that receives under the backpressure situation;
Fig. 4 is the elastic membrane spool and the support structure schematic representation of one embodiment of the invention;
Fig. 5 is the unidirectional feather valve structural representation of the second embodiment of the present invention;
Fig. 6 is the unidirectional feather valve structural representation of the third embodiment of the present invention;
Fig. 7 is the unidirectional feather valve structural representation of the fourth embodiment of the present invention;
Fig. 8 is embodiment illustrated in fig. 7 at the state change map that receives under the positive pressure situation;
Fig. 9 is the unidirectional feather valve structural representation of fifth embodiment of the invention;
Figure 10 is that the unidirectional feather valve of sixth embodiment of the invention is at the structural representation that receives under the positive pressure situation;
Figure 11 is embodiment illustrated in fig. 10 at the structural representation that receives under the backpressure situation;
Figure 12 is that the unidirectional feather valve of seventh embodiment of the invention is at the structural representation that receives under the positive pressure situation;
Figure 13 is embodiment illustrated in fig. 12 at the structural representation that receives under the backpressure situation;
Figure 14 is the fluid delivery system structural representation of one embodiment of the invention;
Figure 15 is the fluid delivery system structural representation of another embodiment of the present invention;
Figure 16 A～Figure 16 C is another embodiment's of the present invention a working procedure schematic representation;
Figure 17 is an an embodiment's more of the present invention fluid delivery system structural representation.
Embodiment
Accompanying drawing discloses part embodiment's of the present invention concrete structure without limitation, below in conjunction with accompanying drawing the present invention is done further detailed explanation.
See also Fig. 1～Fig. 3, this is first embodiment of unidirectional feather valve of the present invention, and this unidirectional feather valve comprises: valve body 1 and the elastic membrane spool of being located in the valve body 12.In the present embodiment, elastic membrane spool 2 is a hollow tubular structure, with the valve interior wall shape adaptation.Elastic membrane spool 2 one ends have opening 21, and the other end has closed bottom 22.This closed bottom 22 is a usually said bucket-shaped structure; Exactly; Closed bottom 22 space body that to be any one cross sections outwards reduce from the other end of elastic membrane spool, thus between closed bottom 22 and valve interior wall, be formed with the gap that is beneficial to the fluid process.For instance, closed bottom 22 can be spherical (as shown in Figure 1), taper (circular cone, elliptic cone or pyramid), V-arrangement, and angle is seen from the longitudinal section, and the longitudinal section of closed bottom 22 can be arc or V-shaped or other shapes, does not enumerate one by one at this.
In addition, can in the elastic membrane spool, be provided with supporter, this supporter can increase the elastic restoring force of elastic membrane spool, also can be used as the limited object of elastic membrane spool.Fig. 4 is the elastic membrane valve core structure schematic representation of one embodiment of the invention, and is as shown in Figure 4, and this supporter is an elastic diaphragm 23 for example, and it is separated into a plurality of chambeies with elastic membrane spool 2a, the elastic restoring force during with increase elastic membrane spool 2a pressurized.
Under the nature that is not stressed, the outer wall of elastic membrane spool 2 and the inwall of valve body are fitted.Its closed bottom 22 pairing ends are inlet, and its opening 21 pairing ends are outlet.
As shown in Figure 2, wherein the direction of arrow is represented flow direction.When the pressure of spool closed end one side (i.e. inlet) pressure greater than valve core opening end one side (i.e. outlet); When promptly producing forward pressure reduction; Fluid is easy to get into existing gap between the inwall of outer wall and valve body 1 of closed bottom 22; When hydrodynamic pressure greatly to a certain degree, can overcome elastic membrane spool 2 because elastic force and, both being separated to the power that compresses that inwall applied of valve body 1; Fluid can be middle through getting into the outlet of valve body 1 from space between the two, also just realized the conducting function under forward pressure reduction.
As shown in Figure 3, also direction indication flow direction of arrow wherein.When the pressure of the pressure that exports greater than inlet, promptly produce under the situation of reverse pressure differential, fluid is easy to get in the elastic membrane spool 2; Make the fluid in the elastic membrane spool 2 produce outside pressure; The lucky so outside tension force of elastic membrane spool 2 of having strengthened, backpressure is big more, and the power that compresses that inwall applied of 2 pairs of valve bodies 1 of elastic membrane spool is also big more; Applying between the two is tight more, has also just realized the function of under reverse pressure differential, valve cutting out.
In the present embodiment; Preferably; Limit body 31,32 can be set at the valve interior wall of elastic membrane spool 2 both sides, and wherein limit body 31 spool 2 when guaranteeing the one-way valve forward conduction can not be flushed away, and limit body 32 can not be rushed out when guaranteeing that spool 2 receives backpressure.Limit body 31,32 can be one section continuous ring pipe, also can be to be spaced by some banking stops to circularize.
Fig. 5 is second embodiment's schematic representation of the unidirectional feather valve of the present invention; Be with Fig. 1～difference embodiment illustrated in fig. 3: position-limiting action is played in residing position in valve body 1 to spool 2 is limit body 41 and limit body 42; Limit body 31,32 can be a continuous and ringwise limited ring, also can be to be spaced by some limiting stoppers to circularize.
Fig. 6 is the 3rd embodiment's schematic representation of the unidirectional feather valve of the present invention; Be with Fig. 1～difference embodiment illustrated in fig. 3: the limit body 51 that spool 2 residing position in valve body 1 is played position-limiting action; Limit body 51 is arranged on the valve interior wall; And pass elastic membrane spool 2, itself and valve body 1 is fixing.
Fig. 7 is the unidirectional feather valve structural representation of the fourth embodiment of the present invention.As shown in Figure 7, in a further embodiment, can with the valve body 1 at elastic membrane spool 2 applying positions on opening 11 is set, make it to be communicated with valve inner with outside.Owing to the applying of elastic membrane spool 2, opening 11 is by 2 sealings of elastic membrane spool at ordinary times.See also Fig. 8, wherein the direction of arrow is represented flow direction.Under forward pressure reduction (valve body openings pressure outside greater than valve body openings in); The tube wall of elastic membrane spool 2 is pushed to the center; Can overcome the power that compresses that inwall applied of 2 pairs of valve bodies 1 of elastic membrane spool; Both are separated, and opening 11 is opened, and fluid is outer through in the opening 11 entering valve bodies 1 by valve body 1.Pressure reduction disappear or reverse pressure differential under (the valve body internal pressure is greater than the valve body pressure outside), the elastic membrane spool recovers state shown in Figure 7 under the effect of self elastic force or backpressure, fit with valve body again, opening 11 is sealed by elastic membrane spool 2, fluid can not pass through.
Being provided with of this opening 11 is beneficial to augmented flow, and compares the situation (first embodiment as shown in Figure 1) that fluid only gets into from closed bottom 22, and the unlatching of its conducting is more easy.The shape of its split shed 11, big I are decided as required.
Further, can the opening 11 that in the 4th embodiment, on valve body 1, is provided be substituted the axially open of script over against closed bottom 22.Fig. 9 is the unidirectional feather valve structural representation of fifth embodiment of the invention.In this embodiment, different with the 4th embodiment is with the aforesaid axially open of a cock body 6 sealings, only to stay opening 11 as fluid input.Under this situation, the bucket shape structure of the closed bottom 22 of elastic membrane spool 2 before adopting, also can adopt flat-bottom structure.In addition, elastic membrane spool 2 can omit at the limit body 32 of closed bottom 22 1 sides at least.
Figure 10 illustrates the unidirectional feather valve of sixth embodiment of the invention.Shown in figure 10, with the valve body 1 at elastic membrane spool 2 applying positions on opening 12 is set, simultaneously with the axially open sealing of original closed bottom 22 over against spool 2.Because axially open seals, so closed bottom 22 1 sides no longer need limit body.Opening 12 for example can form a circle around valve body 1, perhaps carves at interval and cuts a hole on valve body 1, and enough big flow is provided.Closed bottom 22 can curved or V-arrangement, also can be flat shape.
In certain embodiments; Because fluid gets in the valve body from the opening 11 of body wall; It is little with the formed axial impulse force of the mode that adopts among first to the 3rd embodiment to the axial impulse force ratio that spool 2 forms, so spool 2 also can omit at the limit body 41 of opening 21 1 sides.
Continue to consult Figure 10, under the situation that produces forward pressure reduction, fluid flows in the valve body 1 from opening 12, and flow out from outlet in the gap between spool 2 outer walls and valve body 1 inwall.When producing reverse pressure differential, shown in figure 11,2 of spools restore to the original state greatly, fit sealing opening 12 with valve body 1 inwall.
Figure 12 is the unidirectional feather valve of seventh embodiment of the invention.Shown in figure 12, with embodiment illustrated in fig. 4 different be, on the sidewall of elastic membrane spool 2, offer opening 24, make it to be communicated with the inner chamber of spool 2 and the inner chamber of valve body 1.Under the situation that produces forward pressure reduction; Make tube wall quilt that the inwall of the original and valve body 1 before the spool 2 sidewall upper sheds fits in intracardiac extruding and form the gap; Fluid can be passed through; And an other side that gets into valve body 1 through opening 24, i.e. opening 21 1 sides of spool 2, the pressure to the sidewall formation of elastic membrane spool 2 is released simultaneously.Therefore, the tube wall after the opening 24 is unaffected, still fits with the inwall of valve body 1 all the time.This helps making spool 2 to remain in the valve body 1 and is not flushed away.Shown in figure 13, when forward pressure reduction disappeared or receives backpressure, 2 of spools restored to the original state greatly, fitted sealing opening 24 with valve body 1.
In above-mentioned first to the 7th embodiment, the material of making the elastic membrane spool can comprise: rubber, or latex, or silica gel, or plastics elastomeric material.
Unidirectional feather valve of the present invention is not limited only to above-mentioned first to the 7th embodiment, should be appreciated that according to the foregoing description and makes up the embodiment who forms, still in covering scope of the present invention.
The fluid delivery system of above-mentioned unidirectional feather valve is used in explanation below.See also shown in Figure 14ly, an embodiment of fluid delivery system of the present invention comprises the unidirectional feather valve of the first unidirectional feather valve 100, second 200, compressible chamber 300.Compressible chamber 3 is linked up with first unidirectional feather valve 100, the second unidirectional feather valve 200 mutually.The first unidirectional feather valve 100 connects a fluid input end 101, and as unidirectional inflow control, this second unidirectional feather valve 200 connects a fluid output terminal 201, as unidirectional outflow control.The FLUID TRANSPORTATION direction that first, second unidirectional feather valve 100,200 is limited is identical, is direction A.
In the present invention; The first unidirectional feather valve 100 of fluid delivery system optionally adopts above-mentioned first to the 7th embodiment's arbitrary unidirectional feather valve, and the second one-way valve feather valve 200 optionally adopts above-mentioned first to the 3rd embodiment, the 7th embodiment's arbitrary unidirectional feather valve.For for simplicity, following explanation is the example explanation with above-mentioned second embodiment's unidirectional feather valve only, and its identical reference character is represented identical parts, repeats no more at this.
In the present embodiment, compressible chamber 300 has an elastic force flexible pocket 301 by the elastic caoutchouc making, and exactly, compressible chamber 3 can whole be formed by elastic force flexible pocket 301, relies on extruding elastic force flexible pocket 301, makes the volume-variation in compressible chamber 300.But in other embodiments, compressible chamber also can have a non deformable semiclosed housing, and the elastic force flexible pocket is covered in the not enclosure portion of this housing, relies on the elastic force flexible pocket of this part of extruding, changes the volume in whole compressible chamber.
During practical implementation, make the material of elastic force flexible pocket 300 and can select: rubber, latex, silica gel or plastics.
In the present embodiment, first, second unidirectional feather valve 100,200 determined FLUID TRANSPORTATION directions can form on the straight line, and therefore, compressible chamber 300 also is on this straight line, but this is not construed as limiting.
Figure 15 is the fluid delivery system structural representation of another embodiment of the present invention.See also Figure 15; Another embodiment of this fluid delivery system; Equally also comprise the unidirectional feather valve of the first unidirectional feather valve 100, second 200, compressible chamber 300; But with embodiment illustrated in fig. 14 different be that the position at 300 places, compressible chamber is vertical each other with first unidirectional feather valve 100, the second unidirectional feather valve 200 formed straight lines.In addition, in the present embodiment, compressible chamber 300 comprises piston 31 and cavity 32, and it can change volume and pressure in the cavity 32 through push-and-pull piston 31.During practical implementation, comprise that metal can be adopted in the compressible chamber 300 of piston 31 and cavity 32, also can adopt glass or transparent plastic to make.Carry out the accurately occasion of control of flow at needs, can also on the transparent cavity 32 that adopts glass or transparent plastic to make, indicate scale, with the position of control piston 31.
In addition, Figure 16 A is the fluid delivery system structural representation of further embodiment of this invention.In this embodiment, elastic force flexible pocket 300 is still adopted in compressible chamber, and just first unidirectional feather valve 100, the second unidirectional feather valve, 200 positions are vertical each other.
Yet in the present invention; The relative position in the unidirectional feather valve of the first unidirectional feather valve 100, second 200, compressible chamber 300 is not limited to the embodiment shown in Figure 14, Figure 15, Figure 16 A; Guaranteeing compressible chamber 300 effective communications first unidirectional feather valve 100, the second unidirectional feather valve 200; And under the identical prerequisite of the FLUID TRANSPORTATION direction that first, second unidirectional feather valve limited; First unidirectional feather valve 100, the second unidirectional feather valve 200 also can be parallel to each other or at angle, this angle can be between 0～180 °, and the position in compressible chamber 3 then can be arranged on correct position as required.In the present invention, the FLUID TRANSPORTATION direction " identical " that first, second unidirectional feather valve limited refers to, and the first unidirectional feather valve and the second unidirectional feather valve can cooperatively interact, to confirm a unidirectional FLUID TRANSPORTATION direction.
Figure 17 is the fluid delivery system structural representation of yet another embodiment of the invention.In the present embodiment; Fluid delivery system comprises fluid input end 101, fluid output terminal 201, compressible chamber 300; Wherein be respectively equipped with elastic membrane spool 2 in fluid input end 101 and the fluid output terminal 201, each elastic membrane spool 2 constitutes a unidirectional feather valve respectively with the inwall of fluid input end and fluid output terminal.The difference of present embodiment and Fig. 14 illustrated embodiments just is, has omitted the valve body that constitutes unidirectional feather valve, and directly with fluid input end and output terminal as valve body.In addition, those skilled in the art also can carry out various equivalence replacements or improvement according to principle of the present invention, but these replacements and improvement are all within the scope of the present invention.
Below with Figure 16 A illustrated embodiment fluid delivery system be that example is explained working procedure of the present invention.At first consult Figure 16 A～Figure 16 B; When the compressible chamber 300 of compression; Pressure in the compressible chamber 300 increases (greater than the pressure of the first unidirectional feather valve, 100 outsides); Under the effect of pressure; Force the elastic membrane spools 2 in the second unidirectional feather valve 200 to be compressed, make between the inwall of its outer wall and valve body 1 and form the gap, export the gap that the fluid between the first unidirectional feather valve 100 and the second unidirectional feather valve 200 forms between the inwall of elastic membrane spool 2 outer walls and the second unidirectional feather valve 200; Shown in Figure 16 C; When restoring compressible chamber 300; Pressure in the compressible chamber 300 reduce, and make the reinstatement of the elastic membrane spool 2 in the second unidirectional feather valve 200, have eliminated the gap between the inwall of elastic membrane spool 2 outer walls and the second unidirectional feather valve 200; Stop fluid output terminal 201 outer fluids to be got back in the compressible chamber 300; Be negative pressure thereby cause in the compressible chamber 300, under the effect of negative pressure, force the first unidirectional feather valve 100 interior elastic membrane spools 2 to be compressed; Make between the inwall of elastic membrane spool 2 outer walls and fluid input end 1 and form the gap, fluid is input in the compressible chamber 300 through the gap that fluid input end 101 forms between the inwall of elastic membrane spool 2 outer walls and the first unidirectional feather valve 100.So repeatedly, can realize the unidirectional conveying of fluid.
" fluid " that the present invention is alleged comprises free flowable materials such as gas, liquid.Fluid means of the present invention can be used for daily pouring, the conveying of hospital's herb liquid, conveying of various solution or gas etc. in the scientific research.
In sum, unidirectional feather valve of the present invention is compared with existing one-way valve and had the following advantages: the outer wall of elastic membrane spool and the inwall of valve body are fitted, and rely on the natural elasticity tension force of elastic membrane spool can form sealing; Under the situation that has forward pressure reduction, along with the variation of pressure reduction, it is opened flexibly; Under the situation that has reverse pressure differential, the sealing state that then can keep shut.
Fluid delivery system of the present invention is compared with existing fluid delivery system, has the following advantages:
1, simple in structure, the parts of employing seldom, with low cost and be easy to the assembling;
2, adopt compressible chamber as fluid delivery system power, just can guarantee the fluid delivery system proper functioning, and when employing compressible chamber in the form of piston through manpower, can control flow rate;
3, owing to form sealing under the unidirectional elastic membrane valve normality easily; Having no under the external force effect, be in closed state all the time, under differential pressure action; Open and close is flexible, can satisfy the actual demand of people in numerous areas fluid delivery such as production, life, medical treatment, scientific researches.
Though the present invention discloses as above with preferred embodiment; Right its is not that any those skilled in the art are not breaking away from the spirit and scope of the present invention in order to qualification the present invention; When can doing a little modification and perfect, so protection scope of the present invention is when being as the criterion with what claims defined.
Claims (7)
1. a unidirectional feather valve comprises valve body and the spool that places in the valve body, it is characterized in that; This valve body has an entry end and an outlet end; This spool is an elastic membrane spool, and this elastic membrane spool comprises the tubular portion of a hollow, and the outer wall shape of this tubular portion and the inner wall shape of valve body are suitable; And the inwall of outer wall and valve body fits; This tubular portion is at the end opening towards this outlet end, and this elastic membrane spool comprises that also one is the bucket shape structure that cross-section area reduces to entry end, with the other end sealing with this tubular portion.
2. unidirectional feather valve according to claim 1; It is characterized in that; Also comprise spacing limited object is carried out in elastic membrane spool residing position in valve body, it comprises: be arranged on elastic membrane spool two ends block material, be arranged on the supporter that makes it in the spool tube chamber to keep to fit with valve interior wall, pass spool and with its partial fixing in the block material of valve inner, binding that part spool and valve body is bonding at least one of them.
3. unidirectional feather valve according to claim 1 is characterized in that the sidewall of described elastic membrane spool is provided with opening, the inner chamber of this open communication elastic membrane spool and the inner chamber of this valve body.
4. a unidirectional feather valve comprises valve body and the spool that places in the valve body, it is characterized in that; This valve body has an entry end and an outlet end, and this spool is one to be the elastic membrane spool of hollow tubular, and the inner wall shape of its outer wall shape and valve body is suitable; And the outer wall of spool and the inwall of valve body fit; Described elastic membrane spool is at the end opening towards this outlet end, and the relative the other end of spool is the sealing end, and the entry end of valve body is located at the body wall that this valve body and spool fit and locate.
5. unidirectional feather valve according to claim 4; It is characterized in that; Also comprise spacing limited object is carried out in elastic membrane spool residing position in valve body, it comprises: be arranged on elastic membrane spool two ends block material, be arranged on the supporter that makes it in the spool tube chamber to keep to fit with valve interior wall, pass spool and with its partial fixing in the block material of valve inner, binding that part spool and valve body is bonding at least one of them.
6. fluid delivery system; It is characterized in that comprising the first unidirectional feather valve, the second unidirectional feather valve and the compressible chamber that is communicated with first, second unidirectional feather valve; Wherein this first, second unidirectional feather valve is like each described unidirectional feather valve of claim 1～5, and the FLUID TRANSPORTATION direction that first, second unidirectional feather valve limited is identical.
7. fluid delivery system as claimed in claim 6 is characterized in that, described compressible chamber comprises an elastic force flexible pocket by the elastic material making, perhaps comprises a cavity and the piston that can in this cavity, move.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810127905XA CN101349356B (en) | 2007-07-16 | 2008-07-02 | One-way elastic valve and fluid delivery device used thereby |
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| CN200720072487.X | 2007-07-16 | ||
| CN200720072487 | 2007-07-16 | ||
| CN200810127905XA CN101349356B (en) | 2007-07-16 | 2008-07-02 | One-way elastic valve and fluid delivery device used thereby |
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| CN101349356B true CN101349356B (en) | 2012-07-25 |
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| EP2840191B1 (en) * | 2013-08-21 | 2017-06-14 | Geberit International AG | Odour trap device |
| CN106567947A (en) * | 2016-11-10 | 2017-04-19 | 澳柯玛股份有限公司 | One-way valves and freezer equipped with one-way valves |
| CN106762509B (en) * | 2017-02-07 | 2019-01-01 | 筱净（上海）生物科技有限公司 | Liquid pump and liquid jettison system |
| CN110513278A (en) * | 2019-07-29 | 2019-11-29 | 北京矿冶科技集团有限公司 | Emulsified bases conveying device and method |
| CN112303282A (en) * | 2019-07-31 | 2021-02-02 | 福州阀业科技有限公司 | Hydraulic control main valve without mechanical movement |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736598A (en) * | 1971-06-10 | 1973-06-05 | B Bellhouse | Prosthetic cardiac valve |
| CN86200240U (en) * | 1986-01-31 | 1987-04-08 | 刘玉 | Nasal-feeding pump |
| CN2329817Y (en) * | 1998-05-22 | 1999-07-21 | 张辉 | Check valve with valve clack |
| CN2438893Y (en) * | 2000-08-31 | 2001-07-11 | 夏建中 | Direct-through check valve |
| CN2578634Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible inward segment |
| CN2578635Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible outward segment |
| CN1796847A (en) * | 2004-12-30 | 2006-07-05 | 上海上龙阀门厂 | Check valve of double non-return device with cylindrical diaphragm of rubber |
-
2008
- 2008-07-02 CN CN200810127905XA patent/CN101349356B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3736598A (en) * | 1971-06-10 | 1973-06-05 | B Bellhouse | Prosthetic cardiac valve |
| CN86200240U (en) * | 1986-01-31 | 1987-04-08 | 刘玉 | Nasal-feeding pump |
| CN2329817Y (en) * | 1998-05-22 | 1999-07-21 | 张辉 | Check valve with valve clack |
| CN2438893Y (en) * | 2000-08-31 | 2001-07-11 | 夏建中 | Direct-through check valve |
| CN2578634Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible inward segment |
| CN2578635Y (en) * | 2002-10-06 | 2003-10-08 | 石景东 | Check valve with flexible outward segment |
| CN1796847A (en) * | 2004-12-30 | 2006-07-05 | 上海上龙阀门厂 | Check valve of double non-return device with cylindrical diaphragm of rubber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101349356A (en) | 2009-01-21 |
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