CN203770681U - Valve with leak stoppage ring incapable of applying positive force on valve seat - Google Patents
Valve with leak stoppage ring incapable of applying positive force on valve seat Download PDFInfo
- Publication number
- CN203770681U CN203770681U CN201420063382.8U CN201420063382U CN203770681U CN 203770681 U CN203770681 U CN 203770681U CN 201420063382 U CN201420063382 U CN 201420063382U CN 203770681 U CN203770681 U CN 203770681U
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- China
- Prior art keywords
- valve
- drop
- ring
- valve seat
- stopping ring
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- Expired - Fee Related
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Abstract
A valve with a leak stoppage ring incapable of applying positive force on a valve seat comprises a valve body, a valve part and the leak stoppage ring, wherein the valve body is provided with a valve box, the valve seat is contained in the valve box, the valve part is arranged in the valve box, the outer edge of the valve part abuts against the valve seat, a shaft hole is formed axially, and a valve rod penetrates through the shaft hole. The leak stoppage ring is an O-shaped ring, the outer ring surface in the radial direction is in an arc shape and is arranged on the outer side of the valve part to abut against the valve seat, and the leak stoppage ring is symmetrical about the axis passing through the center of the leak stoppage ring in the radial direction. The shape of an annular band-shaped region of the ring surface at the inner edge of the valve seat is identical to the shape of a trail surface formed by motion trail of the outer edge of the leak stoppage ring. When the valve rod moves to drive the valve part to rotate, the outer edge of the leak stoppage ring is tangent with the valve seat in the tangential direction, positive force is not generated between the leak stoppage ring and the valve seat, the valve seat is not extruded and pushed, and foreign matters are discharged when blocked on the valve seat. The leak stoppage ring is fully symmetrical, therefore, when a tiny gap exists between the leak stoppage ring and the valve seat and leak cannot be prevented completely, a good leak stoppage point can be obtained by rotating the leak stoppage ring for a certain angle, and alignment is avoided during installation of the leak stoppage ring.
Description
Technical field
The utility model relates to valve body, and especially a kind of drop-stopping ring can not bestowed to valve seat the valve of positive force.
Background technique
A butterfly valve in prior art, this butterfly valve comprises and prolongs the axis hole radially passing through by one, inserts and so as to driving this butterfly valve to rotate, to open or to close the design of this valve as three eccentric shafts for a drive shaft.As shown in Figure 9, show three eccentric valves of the prior art, wherein this valve comprises: a valve body 1 ', and this valve body has a valve chamber 10 '; One valve rod 2 ', this valve rod penetrated this valve body 1 '.One valve seat 30 ', this valve seat is placed in this valve chamber 10 '.One drop-stopping ring 32 ', this drop-stopping ring 32 ' is an O shape ring, the radial cross section two ends of this drop-stopping ring 32 ' are not symmetrical state.One valve member 31 ', it is upper that this valve member 31 ' is arranged at this valve seat 30 ', this valve member 31 ' be axially arranged with an axis hole 310 ', this axis hole is used for allowing this valve rod penetrate wherein, to control the unlatching of this valve member 31 ' and to close.
Wherein this leakage preventing mechanism is the setting of one or three bias; So-called three bias refer to: the center line (please refer to shown in Fig. 3 B) that these upper and lower two ends of valve body cross section of the axis deviation of this rotating shaft form, so form the first bias (A).The longitudinal center line of this valve body departs from the center line of this pipeline, so form the second bias (B), the centrum that the lateral margin on these valve body both sides forms is not positive pyramid, but the eccentric cone of its top secundly.Wherein the both sides of this cone and pipeline is axially neither parallel, so form the 3rd bias (C).One side of this cone and the parallel to an axis of pipeline in prior art, therefore drop-stopping ring must process the angle that can mutually agree with according to its angle difference, and when this drop-stopping ring is once rotation, when now angle is no longer agreed with, will have the possibility of leakage.
In the prior art, above-mentioned valve seat coordinates the design of this three bias, and the gradient of the inner edge of valve seat must meet the gradient of above-mentioned eccentric cone, and namely as shown in the figure, the inner edge top of valve seat has a gradient; The below of the inner edge of valve seat is level; And this two gradient is just in time consistent with the gradient of this positive pyramid.The gradient of whole inner edge is sequentially successional change downwards by top.
Due to the design of above-mentioned positive pyramid, can seal this valve body completely in order to reach drop-stopping ring, the drop-stopping ring of ring-type must form the asymmetric kenel of circle radially with respect to its axle center, when having made circular asymmetric drop-stopping ring be arranged on valve body outer rim and having shored this valve seat, the edge of this drop-stopping ring can be close to the inner edge of this valve seat by its diverse location, and has formed hermetic form.Asymmetric because this drop-stopping ring is the circle radially that forms with respect to its axle center, thus on manufacturing suitable difficulty, and while installing and can have the problem of directivity, this drop-stopping ring must embed in this valve body with the orientation of setting.But in the time that drop-stopping ring slides, can destroy this water seal.Moreover as shown in Figure 8 because the outer ring surface of this drop-stopping ring 32 ' is not symmetry, moreover the outer ring surface of its bottom surface is straight line, so must produce the positive force outside frictional force and push pushing and pressing valve seat surface valve member in the time rotating valve member, military order valve seat torsional deformation after permanent, and make whole valve body produce variation.If this drop-stopping ring 32 ' is by impurity screens or have a drop-stopping ring that micro-when distortion must more renew.In operation, suitable inconvenience also improves user cost.
Model utility content
So the purpose of this utility model is for solving the problem in above-mentioned prior art, in the utility model, propose a kind of drop-stopping ring and can not bestow to valve seat the valve of positive force, while rotating valve member when starting valve rod, the outer rim of this drop-stopping ring will be with tangent direction, cut this valve seat, thus only have frictional force there is no positive force between the two, and can not produce to valve seat the effect of extruding pushing and pressing, in the time having foreign matter screens on valve seat, because drop-stopping ring is discharged whole valve along tangent direction by foreign matter.Because drop-stopping ring is full symmetric, even if because there is small space between drop-stopping ring and valve seat completely when leak-stopping, can be by drop-stopping ring angle of swing, to obtain preferably leak-stopping point.Because drop-stopping ring 32 is full symmetric, there is no when mounted the problem of contraposition.
The main technical schemes the utility model proposes for achieving the above object is:
Drop-stopping ring can not bestowed to valve seat a valve for positive force, comprises:
One valve body, this valve body has a valve chamber; One valve seat is placed in this valve chamber; This valve seat is circular, and the radial cross section of this valve seat is trapezoidal;
One valve member, this valve member is arranged in this valve chamber and unlatching by this valve member and close control by the flow of fluid, its this valve seat of outer rim contact, this valve member be axially arranged with an axis hole, a valve rod penetrated this axis hole and controlled the unlatching of this valve member and close;
One drop-stopping ring, this drop-stopping ring is one to be symmetrical in the O shape ring in the center of circle, and this drop-stopping ring outer ring surface is radially convex arc shaped, be placed in the outside of this valve member and contact at valve seat, the radial symmetric of this drop-stopping ring is in by the axis at this drop-stopping ring center;
The track plane that wherein movement locus of its this drop-stopping ring outer most edge of shape equity of an endless belt-shaped region of the inner edge anchor ring of this valve seat scans out, and the annulus of this track plane equals the type shape in this endless belt-shaped region of the inner edge anchor ring of this valve seat, in the time that valve member rotates with the rotation of valve rod, the outer rim of this drop-stopping ring was cut this valve seat and was only had frictional force there is no positive force between the two with tangent direction, and drop-stopping ring does not push while moving along tangent direction and is stuck in the foreign matter on valve seat and discharged whole valve.
The beneficial effects of the utility model are:
Valve of the present utility model, while driving drop-stopping ring when this valve rod rotation, the outer rim of this drop-stopping ring was just in time cut this endless belt-shaped region, in the time cutting drop-stopping ring, can't bestow positive force to this valve seat, therefore can not promote this valve seat, so produce splendid sealing when drop-stopping ring contacts valve seat.
The above-mentioned characteristic of the utility model is particularly useful for three eccentric valves of the drop-stopping ring of tool symmetry, and making the drop-stopping ring of ring-type by the design of eccentric cone can be to form circular symmetry radially with respect to its axle center.Be the structure of this circular symmetry in the time that this drop-stopping ring is arranged on valve body outer rim and shores this valve seat, the edge of this drop-stopping ring can be close to the inner edge of this valve seat by its diverse location, and has formed hermetic form.Because this drop-stopping ring is the circular symmetry radially forming with respect to its axle center, thus quite simple on manufacturing, and can't directive problem while installing, this drop-stopping ring can either direction directly embed in this valve body.Even in the time that drop-stopping ring slides, still can reach the object of sealing.
Can further understand feature of the present utility model and advantage thereof by explanation below, when reading and please refer to accompanying drawing.
Brief description of the drawings
Figure 1A shows the exploded view of valve of the present utility model.
Figure 1B shows the sectional drawing of valve member of the present utility model.
Fig. 1 C shows the sectional drawing of drop-stopping ring of the present utility model.
Fig. 1 D shows the sectional drawing of inner side of the present utility model lid.
Fig. 2 shows the stereogram after valve combination of the present utility model.
Fig. 3 A shows the sectional view of valve of the present utility model.
Fig. 3 B shows another sectional view of valve of the present utility model.
Fig. 4 shows the cross-section sectional view of valve body of the present utility model.
Fig. 5 A and 5B show sectional view and the stereogram of the drop-stopping ring of valve body of the present utility model.
Fig. 6 A and 6B show sectional view and the three-dimensional cutaway view after this valve combination of the present utility model.
Fig. 7 A shows the rotary motion trace of drop-stopping ring of the present utility model and the schematic diagram of valve seat.
Fig. 7 B shows drop-stopping ring eliminating foreign matter schematic diagram of the present utility model.
Fig. 7 C shows drop-stopping ring extruding valve seat schematic diagram of the prior art.
Fig. 8 shows drop-stopping ring schematic diagram of the prior art.
Fig. 9 shows the sectional view of the valve of prior art.
Figure 10 shows the decomposed figure of valve body of the present utility model, wherein shows the drop-stopping ring of a symmetry.
[primary component symbol description]
1 valve body
10 valve chambers
11 ladders
2 valve rods
30 valve seats
31 valve members
310 axis holes
311 ladder forms
313 chases
315 surfaces
32 drop-stopping rings
33 sealing packing rings
34 seal rings
4 side cover bodies
40 screws
41 ladders
5 outside lids
50 screws.
Embodiment
Hereby sincerely with regard to structure of the present utility model composition, and effect and the advantage that can produce, coordinate graphicly, lift a preferred embodiment of the present utility model and be described in detail as follows.
Please refer to Figure 1A, 1B, 1C, shown in 1D to Fig. 6 A, Fig. 6 B, shows that drop-stopping ring of the present utility model can not bestow to valve seat the valve (three eccentric valves) of positive force, comprises following elements:
One valve body 1, the internal ring wall of this valve body forms a valve chamber 10; The outer ring of valve body 1 is as a ladder 11 (please refer to Figure 1B).One valve seat 30 is placed in this valve chamber 10; It is circular that this valve seat is slightly, and the radial cross section of this valve seat is trapezoidal.In the utility model, this valve seat is dismountable structure.
One valve rod 2, this valve rod penetrated this valve body 1, and this valve stem tip can connect a valve operator (not shown), for driving this valve body rotation, to make this valve body can optionally open or close caliber through hole.
One valve member 31, this valve member 31 is arranged at this valve seat 30 inside, this valve member 31 be axially arranged with an axis hole 310, this axis hole 310 is for allowing this valve rod 2 penetrate wherein, to control the unlatching of this valve member 31 and to close, the unlatching of this valve member 31 and close can control by the flow of fluid; Wherein the outer rim of this valve member 31 is ladder form 311, and forms a chase 313 (with reference to figure 1C) on the surface 315 of the ladder form 311 at close outer rim place.
One inner side lid 4, these side cover body 4 pipe diameter sizes are corresponding to the size of the caliber through hole of this valve member 31, and the one side of this inner side lid 4 is provided with several screws, and this inner side lid 4 uses several screws 40, and through those screws, locking is in a side of this caliber through hole.As shown in Fig. 1 D, wherein the outer shroud of this inner side lid 4 forms single order ladder 41.
One outside lid 5, these outside lid 5 pipe diameter sizes are corresponding to the size of the caliber through hole of this valve body 1, and the one side of this outside lid 5 is provided with several screws, and this outside lid 5 uses several screws 50, and through those screws, locking is in a side of this caliber through hole.
One leakage preventing mechanism 3, this leakage preventing mechanism comprises (please refer to Figure 1A):
One drop-stopping ring 32 (please refer to Fig. 5 A and 5B), this drop-stopping ring 32 is an O shape ring, be placed in ladder form 311 places of outer rim in the outside of this valve member 31 and this valve seat 30 of contact, the radial symmetric of this drop-stopping ring 32 is in passing through the axis at these drop-stopping ring 32 centers, and these drop-stopping ring 32 tops are slightly circular-arc.
The ring that wherein this drop-stopping ring forms for falope ring or graphite or PTEF material, according to design of the present utility model (will illustrate below), this drop-stopping ring 32 that is symmetrical shape can touch any point of this valve seat 30 and reach the effect that seals stopping leak, and can be uniformly distributed stressed.
One sealing packing ring 33, this sealing packing ring 33 is an annulus, this sealing packing ring 33 is positioned at the chase 313 (please refer to Fig. 3 A and 3B) forming on the surface 315 of ladder form 311 of this valve member 31, and between this valve member 31 and this drop-stopping ring 32.Sealing packing ring 33 is generally made up of metal material.In the time that sealing packing ring 33 is out of shape, because this drop-stopping ring 32 has preferably elasticity, can compensate the space producing when this sealing packing ring 33 is out of shape, so quite good water seal can be provided.
One seal ring 34, the side that this seal ring 34 is its annulus of annulus has a breach, and this seal ring 34 is positioned at a chase of this ladder 11 of this valve body 1 outer shroud, and between this valve body 1 and this outside lid 5.This seal ring 34 is generally made up of metal material.
The setting that wherein this leakage preventing mechanism of the present utility model is one or three bias; So-called three bias refer to:
The shaft axis P of this valve member 31 longitudinal direction radially departs from the center line P ' (please refer to shown in Fig. 3 A) that these valve body 1 upper and lower two ends of cross section form, and makes between this shaft axis P and this center line P ' to have a spacing A, and this is the first bias.
The longitudinal center line Q of this valve member 31 departs from the center line Q ' of the valve chamber of this valve body 1, and makes between this longitudinal center line Q and the center line Q ' of this valve body 1 to have a gap B, so form the second bias.
As shown in Figure 3 B, this valve member 31 forms asymmetric taper, two line stretcher R, R ' that wherein the lateral margin on upper and lower both sides forms are asymmetric, but the line stretcher R of top lateral margin is greater than the slope (take absolute value) of below lateral margin line stretcher R ' with respect to the center line of this valve member 31 with respect to the slope (taking absolute value) of the center line of this valve member 31, as shown in Figure 3 B, this two line of dip R, R ' are extended and are an intersection I toward left.Wherein the distance d between intersection I and the center line Q ' of this valve body 1 is not more than the radius of valve member.So form the 3rd bias.
In design of the present utility model, with prior art difference be that the centrum that forms of valve member is not positive pyramid, but the eccentric cone of its top secundly.The deflection of center line Q ' that the deflection on the summit of this eccentric cone and the longitudinal center line Q of this valve member depart from this valve body 1 is identical.Wherein the both sides of this cone and pipeline is axially neither parallel, and this two line of dip is all not parallel with the center line of valve member 31.
As shown in Figure 5, but in the utility model, this drop-stopping ring 32 can be one to be symmetrical in by the ring of the axle in the center of circle, so processing procedure is quite simple and easy.Please refer to Fig. 8 and wherein show that drop-stopping ring 32 ' of the prior art is an asymmetric ring, the ring of this type is suitable difficulty on manufacturing, because the radian of each angle must be according to the specification manufacture of design.In addition, this drop-stopping ring 32 in the utility model is because be symmetrical structure, so in the time that these drop-stopping ring 32 covers are set to this valve member 31 and then are installed to this valve body 1 inner side, do not need accurate contraposition, so installment work is quite simple.Be mainly because the different axial positions that this drop-stopping ring 32 of the present utility model can be applied its periphery still can touch the inner edge of this valve body 1 closely, reach the object of sealing.With respect to the structure of the prior art of Fig. 8, because its drop-stopping ring 32 ' asymmetric, so when mounted, precisely contraposition, there is deviation position one, has the possibility of leakage.On the other hand, when valve of the present utility model in use, in the time having foreign object alluvial between this drop-stopping ring 32 and this valve body 1 inner side, the utility model can be by the angle of adjusting this drop-stopping ring 32, and gets rid of this shoal materials, reaches the object of sealing.The structure of prior art, because necessary precise positioning, its drop-stopping ring 32 ' cannot rotate.
Moreover drop-stopping ring 32 ' must be different and process the angle that can mutually agree with according to its angle, and when this drop-stopping ring 32 ' is once rotation, when now angle is no longer agreed with, the possibility of leakage will be had.The utility model designed go out drop-stopping ring 32 its radians more slow, so processing on, can apply computer design and create easily.Cannot apply computer design and must artificial manufacture unlike drop-stopping ring of the prior art, quite consuming time and cost is high.
Above-mentioned valve seat 30 coordinates the design of this three bias, and the gradient of the inner edge of valve seat 30 must meet the gradient of above-mentioned eccentric cone, and namely as shown in the figure, the inner edge top of valve seat 30 has a gradient of delaying; And the below of the inner edge of valve seat 30 has a steeper gradient; And this two gradient is just in time consistent with the gradient of this eccentric cone.The gradient of whole inner edge is sequentially successional change downwards by top.
Can be to form circular symmetry radially with respect to its axle center because the design of above-mentioned eccentric cone makes the drop-stopping ring 32 of ring-type.Be the structure of this circular symmetry in the time that this drop-stopping ring 32 is arranged on valve body 1 outer rim and shores this valve seat 30, the edge of this drop-stopping ring 32 can be close to the inner edge of this valve seat 30 by its diverse location, and has formed hermetic form.Because this drop-stopping ring 32 is the circular symmetry radially forming with respect to its axle center, thus quite simple on manufacturing, and can't directive problem while installing, this drop-stopping ring 32 can directly embed in this valve body 1 with either direction.Instant in the time that drop-stopping ring 32 slides, still can reach the object of sealing.
In addition, of the present utility model another be characterized as the track plane a that the movement locus (as shown in Figure 7 A) of an endless belt-shaped region these drop-stopping ring 32 outer most edge of its type shape equity of the inner edge anchor ring of this valve seat 30 scans out, that is in the time that this valve rod 2 rotates and drives drop-stopping ring 32, the outer most edge of this drop-stopping ring 32 was just in time cut this endless belt-shaped region, in the time cutting drop-stopping ring 32, can't bestow positive force to this valve seat 30, and therefore can not promote this valve seat 30.This one is designed with and helps produce when drop-stopping ring 32 contacts valve seat 30 splendid sealing.
In the time that this valve rod 2 rotates, this drop-stopping ring 32 rotates the radial direction taking this valve rod 2 as rotatingshaft, to change because the radius of gyration is different so the outer rim diverse location of this drop-stopping ring 32 is put its movement locus, therefore the inner edge surface of the utility model valve seat 30 will make successional change to be applicable to the movement locus face a of this drop-stopping ring 32 of entirety according to diverse location point on this drop-stopping ring 32.
Above-mentioned design of the present utility model can produce following two advantages:
(1) while rotating valve member 31 when starting valve rod 2, the outer rim of this drop-stopping ring 32 will be with tangent direction, cut this valve seat, so only have frictional force there is no positive force between the two, and can not produce to valve seat 30 effect (can cause for a long time the damage of valve seat 30 and the skew of valve body 1) of extruding pushing and pressing.As shown in Figure 7 B, in the time having foreign matter screens on valve seat 30, because drop-stopping ring 32 advances with tangent direction, thus can not bestow the strength of pushing to valve seat 30 to this foreign matter, but along tangent direction, foreign matter is discharged to whole valve.
Review as shown in Fig. 7 C, it is the action diagram of three inclined to one side valve arrangements of prior art, wherein because the outer ring surface of this drop-stopping ring 32 ' is not symmetry, moreover the outer ring surface of its bottom surface is straight line, so must produce frictional force and positive force and push foreign matter and move to valve seat 30 ' face valve seat 30 ' in the time rotating valve member 31 ', therefore cannot get rid of foreign matter.After permanent, not only foreign matter can be stuck in and on valve seat 30 ', even can destroy valve body.
(2) as shown in figure 10, because drop-stopping ring 32 is full symmetric, even if because there is small space between drop-stopping ring 32 and valve seat 30 completely when leak-stopping, can be by drop-stopping ring 32 angle of swing, to obtain preferably leak-stopping point.Because drop-stopping ring 32 is full symmetric, there is no when mounted the problem of contraposition.
But in the prior art,, because this drop-stopping ring 32 ' is asymmetric, when installation, necessary exactitude position, cannot rotate after installation.If this drop-stopping ring 32 ' is by impurity screens or have a drop-stopping ring 32 ' that micro-when distortion must more renew.In operation, suitable inconvenience also improves user cost.
In sum, the design of consideration of the utility model hommization, quite realistic demand.The existing disappearance of its concrete improvement, obviously has breakthrough progressive advantage compared to prior art, really have the enhancement of effect, and non-being easy to is reached.The utility model discloses or is exposed on the document and market of internal and overseas, has met patent statute.
Above-listed detailed description is illustrating for a possible embodiments of the present utility model, only this embodiment is not in order to limit the scope of the claims of the present utility model, allly do not depart from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the scope of the claims of the present utility model.
Claims (5)
1. drop-stopping ring can not bestowed to valve seat a valve for positive force, it is characterized in that comprising:
One valve body (1), this valve body (1) has a valve chamber (10); One valve seat (30) is placed in this valve chamber (10); This valve seat (30) is circular, and the radial cross section of this valve seat (30) is trapezoidal;
One valve member (31), this valve member (31) is arranged in this valve chamber (10) and unlatching by this valve member (31) and close control by the flow of fluid, its this valve seat of outer rim contact (30), this valve member (31) be axially arranged with an axis hole (310), a valve rod (2) penetrated this axis hole (310) and controlled the unlatching of this valve member (31) and close;
One drop-stopping ring (32), this drop-stopping ring (32) is that an O shape that is symmetrical in the center of circle is encircled, and this drop-stopping ring (32) outer ring surface is radially convex arc shaped, be placed in the outside of this valve member (31) and contact in valve seat (30), the radial symmetric of this drop-stopping ring (32) is in by the axis at this drop-stopping ring (32) center;
The track plane that wherein movement locus of its shape equity this drop-stopping ring (32) outer most edge of an endless belt-shaped region of the inner edge anchor ring of this valve seat (30) scans out, and the annulus of this track plane equals the type shape in this endless belt-shaped region of the inner edge anchor ring of this valve seat (30), in the time that valve member (31) rotates with the rotation of valve rod (2), the outer rim of this drop-stopping ring (32) was cut this valve seat (30) and only had frictional force there is no positive force between the two with tangent direction, and drop-stopping ring (32) does not push while moving along tangent direction and is stuck in the foreign matter on valve seat (30) and is discharged whole valve.
2. drop-stopping ring as claimed in claim 1 can not bestowed to valve seat the valve of positive force, it is characterized in that: this valve is the valve of one or three bias, its valve member (31) forms asymmetric taper, two line stretcher (the R that wherein lateral margin on upper and lower both sides forms, R ') asymmetric, the line stretcher (R) of top lateral margin is greater than the absolute value of below lateral margin line stretcher (R ') with respect to the slope of the center line of this valve member (31) with respect to the absolute value of the slope of the center line of this valve member (31), this two line of dip (R, R ') extend to form an intersection point (I), distance between the center line of this intersection point (I) and this valve body (1) (Q ') is not more than the radius of valve member (31).
3. drop-stopping ring as claimed in claim 2 can not bestowed to valve seat the valve of positive force, it is characterized in that: this valve member (31) center portion projection one encircles, and is provided with a chase (313) near outer rim place; One sealing packing ring (33) is positioned at the chase (313) of this valve member (31), and between this valve member (31) and this drop-stopping ring (32).
4. drop-stopping ring as claimed in claim 2 can not bestowed to valve seat the valve of positive force, it is characterized in that: the shaft axis (P) of this valve member (31) longitudinal direction rotating shaft radially departs from the center line that the upper and lower two ends of this valve body (1) cross section form (P '), and between this shaft axis (P) and this center line (P '), have a spacing (A) and form a bias; And
The longitudinal center line (Q) of this valve member (31) departs from the center line (Q ') of this valve body (1), and has a gap (B) and form another bias between the center line of this longitudinal center line (Q) and this valve body (Q ').
5. drop-stopping ring as claimed in claim 2 can not bestowed to valve seat the valve of positive force, it is characterized in that: the ring that this drop-stopping ring (32) forms for silica gel or graphite or PTEF material, the top of this drop-stopping ring (32) props up this valve seat (30), and this drop-stopping ring (32) touches any point of this valve seat and is uniformly distributed stressed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063382.8U CN203770681U (en) | 2014-02-12 | 2014-02-12 | Valve with leak stoppage ring incapable of applying positive force on valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420063382.8U CN203770681U (en) | 2014-02-12 | 2014-02-12 | Valve with leak stoppage ring incapable of applying positive force on valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203770681U true CN203770681U (en) | 2014-08-13 |
Family
ID=51287872
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420063382.8U Expired - Fee Related CN203770681U (en) | 2014-02-12 | 2014-02-12 | Valve with leak stoppage ring incapable of applying positive force on valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203770681U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822773A (en) * | 2014-12-16 | 2016-08-03 | 进典工业股份有限公司 | Eccentric valve and manufacturing method thereof |
-
2014
- 2014-02-12 CN CN201420063382.8U patent/CN203770681U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105822773A (en) * | 2014-12-16 | 2016-08-03 | 进典工业股份有限公司 | Eccentric valve and manufacturing method thereof |
| TWI555934B (en) * | 2014-12-16 | 2016-11-01 | 進典工業股份有限公司 | Eccentric valve and manufacture method thereof |
| CN108180290A (en) * | 2014-12-16 | 2018-06-19 | 进典工业股份有限公司 | Eccentric valve |
| CN105822773B (en) * | 2014-12-16 | 2018-08-31 | 进典工业股份有限公司 | Eccentric valve and method for manufacturing sealing member thereof |
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