CN202834119U - Three-eccentric valve with symmetric leaking stopping ring - Google Patents
Three-eccentric valve with symmetric leaking stopping ring Download PDFInfo
- Publication number
- CN202834119U CN202834119U CN 201220391568 CN201220391568U CN202834119U CN 202834119 U CN202834119 U CN 202834119U CN 201220391568 CN201220391568 CN 201220391568 CN 201220391568 U CN201220391568 U CN 201220391568U CN 202834119 U CN202834119 U CN 202834119U
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- valve
- drop
- stopping ring
- ring
- valve member
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Abstract
A three-eccentric valve with a symmetric leaking stopping ring comprises a valve body, a valve seat, a valve piece and the leaking stopping ring, wherein the valve is provided with a valve chamber; the valve seat is accommodated in the valve chamber; the valve seat is slightly circular ring-shaped; the radial section of the valve seat is trapezoidal; the valve piece is arranged in the valve chamber; the outer edge of the valve piece is propped against the valve seat; a shaft hole is axially formed in the valve piece; the shaft hole is used for allowing a valve rod to penetrate through so as to control the opening and closing of the valve piece; through the opening and closing of the valve piece, the flow of a passing fluid can be controlled; the leaking stopping ring is an O-shaped ring which is propped against the valve seat through being accommodated on the outer side of the valve piece; and the radial direction of the leaking stopping ring is symmetric to the axis passing through the center of the leaking stopping ring. According to the utility model, the leaking stopping ring is shaped like a symmetric circle relative to the axis in a radial direction; during mounting, the edge of the leaking stopping ring can stick to the inner edge of the valve seat in different positions, so that the completely sealing form is formed.
Description
Technical field
The utility model relates to a kind of valve body, especially a kind of three eccentric valves of drop-stopping ring of tool symmetry.
Background technique
A butterfly valve in the prior art, this butterfly valve comprises the axis hole that radially passes through by, inserts and drives whereby this butterfly valve for a drive shaft and rotate, to open or to close this valve as the design of three eccentric shafts.As shown in Figure 7, be three eccentric valves of the prior art, wherein this valve comprises: a valve body, and this valve body has a valve chamber; One valve rod, this valve body is crossed in this valve rod break-through; One valve seat 30 ', this valve seat are placed in this valve chamber; One drop-stopping ring 32 ', this drop-stopping ring 32 ' are O shape ring, and the radial cross section two ends of this drop-stopping ring 32 ' are not symmetrical state; One valve member 31 ', this valve member 31 ' is arranged on this valve seat 30 ', this valve member 31 ' be axially arranged with an axis hole, this axis hole is used for allowing this valve rod break-through cross wherein, with the unlatching of controlling this valve member 31 ' and close.
Wherein this leakage preventing mechanism is the setting of one or three off-centre; So-called three eccentric shafts namely refer to: the center line (please refer to shown in Figure 4) that two ends consist of about this valve body cross section of the axis deviation of this rotating shaft, so consist of the first eccentric A '.The longitudinal center line of this valve body departs from the center line of this pipeline, so consist of the second eccentric B ', the centrum that the lateral margin on these valve body both sides consists of is not positive pyramid, but the eccentric cone of its top secundly.Wherein the both sides of this cone and pipeline is axially all not parallel, thus consist of the 3rd off-centre (C '.The parallel to an axis of one side of this cone and pipeline in the prior art, so drop-stopping ring must be different and process the angle that can mutually agree with according to its angle, and when this drop-stopping ring once rotation, this moment angle not when agreeing with, will have the possibility of leakage.
In the prior art, above-mentioned valve seat cooperates the design of this three off-axis, 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 of valve seat top has a gradient; The below of the inner edge of valve seat then is level; And this two gradient just in time is consistent with the gradient of this positive pyramid.The gradient of whole inner edge then sequentially is successional change downwards by the top.
Because the design of above-mentioned positive pyramid, can seal this valve body fully in order to reach drop-stopping ring, the drop-stopping ring of ring-type must form radially circular asymmetric form with respect to its axle center, when shoring this valve seat so that circular asymmetric drop-stopping ring is installed in the valve body outer rim, 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 radially circular asymmetric that forms with respect to its axle center, thus on making difficult, and when installing and can have the problem of directivity, this drop-stopping ring must embed in this valve body with the orientation of setting.But when drop-stopping ring slides, namely can destroy this water seal.
The model utility content
So the purpose of this utility model is for solving the problem on the above-mentioned prior art, a kind of three eccentric valves of drop-stopping ring of tool symmetry are proposed in the utility model, by the design of eccentric cone so that the drop-stopping ring of ring-type can be to form radially circular symmetry with respect to its axle center.Be the structure of this circular symmetry when this drop-stopping ring is installed in the 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 that forms with respect to its axle center, thus quite simple on making, and can't directive problem when installing, this drop-stopping ring can either direction directly embed in this valve body.Even when drop-stopping ring slides, still can reach the purpose of sealing.
For proposing a kind of three eccentric valves of drop-stopping ring of tool symmetry in the utility model that achieves the above object, comprise: a valve body, this valve body has a valve chamber; One valve seat is placed in this valve chamber; It is circular that this valve seat slightly is, and the radial cross section of this valve seat is trapezoidal; One valve member, this valve member are arranged in this valve chamber, its this valve seat of outer rim contact, this valve member be axially arranged with an axis hole, this axis hole is used for allowing a valve rod break-through cross wherein, with the unlatching of controlling this valve member and close, the unlatching of this valve member and close can control flow by fluid; Its this valve member forms asymmetric taper, wherein formed two line stretchers of lateral margin on both sides are asymmetric up and down, the line stretcher of top lateral margin with respect to the slope (taking absolute value) of the center line of this valve member greater than the slope (take absolute value) of below lateral margin line stretcher with respect to the center line of this valve member, this two line of dip is an intersection point toward the left extension, and wherein the distance between the center line of intersection point and this valve body is not more than the radius of valve member; And a drop-stopping ring, this drop-stopping ring is O shape ring, be placed in the outside of this valve member and contact at valve seat, the radial symmetric of this drop-stopping ring is in the axis by this drop-stopping ring center.
Wherein, design condition better in the utility model is: establish scope circle of the angle between the center line of the formed line stretcher of lateral margin of this valve member top and this valve body in 2.5 degree between 10 degree, better this angle circle of person is in 4.5 degree between 8 degree.Intersection point to line and the angle between this top line stretcher at valve body center scope circle of establishing is in 10 degree between 30 degree in addition, and better this angle circle of person is in 14 degree between 23 degree.Establishing in addition and making a vertical line to the intersection point of the center line of this this valve body by intersection point is I ', and then I ' is to the distance bound at valve body center between the 90mm to 1500mm, and this distance bound of better person is between the 130mm to 1150mm.
Wherein, better:
If the angle between the center line of the formed line stretcher of the lateral margin of this valve member top (R) and this valve body is C, scope circle of this angle C is in 2.5 degree between 10 degree.
If intersection point to the line at valve body center is L, then the angle between line L and this line stretcher R is made as D, and scope circle of this angle D is in 10 degree between 30 degree.
If making vertical line to the intersection point of the center line of this valve body by intersection point is I ', then I ' is to the distance bound at valve body center between the 90mm to 1500mm.
Ring of this valve member center portion projection, and be provided with a chase near the outer rim place; A sealing packing ring is positioned at the chase of this valve member, and between this valve member and this drop-stopping ring.
The shaft axis of this valve member longitudinal direction rotating shaft radially departs from the up and down center line that consists of of two ends of this valve body cross section, and so that between this shaft axis and this center line spacing of existence to consist of eccentric state; And
The longitudinal center line of this valve member departs from the center line of this valve body, and consists of another eccentric point so that have a gap between the center line of this longitudinal center line and this valve body.
This drop-stopping ring is the ring that falope ring or graphite or PTEF material consist of, and the top of this drop-stopping ring props up this valve seat, and it is stressed can evenly distributing that this drop-stopping ring can touch any point of this valve seat.
Useful technique effect of the present utility model is, the utility model is owing to adopting the design of eccentric cone, so that the drop-stopping ring of ring-type can be to form radially circular symmetry with respect to its axle center.Be the structure of this circular symmetry when this drop-stopping ring is installed in the 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 that forms with respect to its axle center, thus quite simple on making, and can't directive problem when installing, this drop-stopping ring can either direction directly embed in this valve body.Even when drop-stopping ring slides, still can reach the purpose of sealing.
Can further understand feature of the present utility model and advantage thereof by explanation hereinafter, during reading and please refer to accompanying drawing.
Description of drawings
Fig. 1 is the exploded view of valve body of the present utility model.
Fig. 2 is the stereogram of valve body of the present utility model.
Fig. 3 is the sectional view of valve body of the present utility model.
Fig. 4 is another sectional view of valve body of the present utility model.
Fig. 5 A and Fig. 5 B are schematic diagram sectional view and the stereogram of the drop-stopping ring of valve body of the present utility model.
Fig. 6 is drop-stopping ring schematic diagram of the prior art.
Fig. 7 is the sectional view of the valve body of prior art.
Embodiment
This only forms with regard to structure of the present utility model, and effect and the advantage that can produce, and cooperates accompanying drawing, lifts a preferred embodiment of the present utility model and is described in detail as follows.
Please refer to Fig. 1 to shown in Figure 4, be three eccentric valves of the present utility model, comprise following elements:
One valve body 1, the internal ring wall of this valve body form a valve chamber 10; One valve seat 30 is placed in this valve chamber 10; It is circular that this valve seat slightly is, and the radial cross section of this valve seat is trapezoidal.This valve seat is dismountable structure in the utility model.
One valve rod 2, this valve body 1 is crossed in this valve rod break-through, and this valve stem tip can connect a valve operator (not shown), is used for driving this valve body rotation, so that the caliber through hole can optionally be opened or close to this valve body.
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 is used for allowing these valve rod 2 break-through cross wherein, with the unlatching of controlling this valve member 31 and close, the unlatching of this valve member 31 and close can control flow by fluid; Wherein these valve member 31 center portion projections one encircle, and are provided with a chase near the outer rim place.
One leakage preventing mechanism 3, this leakage preventing mechanism comprises:
One drop-stopping ring 32 (please refer to Fig. 5 A and Fig. 5 B), this drop-stopping ring 32 is O shape ring, be placed in the outside of this valve member 31 and contact at valve seat 30, please refer to Fig. 5, the radial symmetric of this drop-stopping ring 32 is in the axis by these drop-stopping ring 32 centers, and these drop-stopping ring 32 tops slightly are circular-arc.
Wherein this drop-stopping ring is the ring that falope ring or graphite or PTEF material consist of, 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 it is stressed evenly to distribute.
One sealing packing ring 33, this sealing packing ring 33 is an annulus, this sealing packing ring 33 is positioned at the chase of this valve member 31, and between this valve member 31 and this drop-stopping ring 32.Sealing packing ring 33 generally is made of metal material.When 33 distortion of sealing packing ring, because this drop-stopping ring 32 has better elasticity, the space that produces in the time of can compensating this sealing packing ring 33 distortion is so can provide quite good water seal.
Wherein this leakage preventing mechanism of the present utility model setting that is one or three off-centre; So-called three off-centre namely refer to:
The shaft axis P of this valve member 31 longitudinal direction radially departs from the up and down center line P ' (please refer to shown in Figure 3) that consists of of two ends of this valve body 1 cross section, and so that existence one spacing A between this shaft axis P and this center line P ', this is the first off-centre.
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 so that there is a gap B between the center line Q ' of this longitudinal center line Q and this valve body 1, so consist of the second off-centre.
As shown in Figure 4, this valve member 31 forms asymmetric taper, wherein the formed two line stretcher R of lateral margin, the R ' on both sides are asymmetric up and down, but the line stretcher R of top lateral margin with respect to the slope (taking absolute value) of the center line of this valve member 31 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, shown in Fig. 4 and Fig. 5 A, Fig. 5 B, this two line of dip R, R ' are an intersection I toward the left extension.Wherein be not more than the radius of valve member apart from d between the center line Q ' of intersection I and this valve body 1.So consist of the 3rd off-centre.
Design condition better in the utility model is: the angle of establishing between the center line Q ' of the formed line stretcher R of lateral margin of these valve member 31 tops and this valve body is C, and scope circle of this angle C is in 2.5 degree between 10 degree.Establishing in addition intersection I to the line at valve body center is L, and then the angle between line L and this line stretcher R is made as D, and scope circle of this angle D is in 10 degree between 30 degree.Establishing in addition and making a vertical line to the intersection point of the center line Q ' of this this valve body 1 by intersection I is I ', and then I ' is to the distance bound at valve body center between the 90mm to 1500mm.
In design of the present utility model, from prior art the centrum that consists of for valve member of different persons be 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 all not parallel, and namely this two line of dip is all not parallel with the center line of valve member 31.
Shown in Fig. 5 A and Fig. 5 B, this drop-stopping ring 32 can be one to be symmetrical in the ring by the axle in the center of circle, so quite simple and easy at processing procedure.Please refer to Fig. 6 is an asymmetric ring for drop-stopping ring 32 ' of the prior art wherein, and the ring of this type is suitable difficulty on making, because the radian of each angle must be according to the specification manufacturing of design.In addition, this drop-stopping ring 32 in the utility model is because be symmetrical structure, so when these drop-stopping ring 32 covers are set to this valve member 31 and then are installed to this valve body inboard, do not need accurate contraposition, so installment work is quite simple.Mainly be because this drop-stopping ring 32 of the present utility model can be used the inner edge that the different axial positions of its periphery still can touch this valve body closely, reach the purpose of sealing.With respect to the structure of the prior art of Fig. 6, because its drop-stopping ring and asymmetric, so when mounted, precisely contraposition, there is deviation position one, and the possibility of leakage is then arranged.On the other hand, when valve of the present utility model in use, when having foreign object alluvial between this drop-stopping ring 32 and this valve body inboard, the utility model can be by the angle of adjusting this drop-stopping ring 32, and gets rid of this shoal materials, reaches the purpose of sealing.But the structure of prior art, because necessary precise positioning, its drop-stopping ring can't rotate.
The design of three above-mentioned eccentric shafts can reach quite high tightness so that valve member 31 can be set in this valve seat 1 easily.Moreover the drop-stopping ring of prior art must be different and process the angle that can mutually agree with according to its angle, and when this drop-stopping ring once rotation, this moment angle not when agreeing with, will have the possibility of leakage.Designed its radian of drop-stopping ring that goes out of the utility model is more slow, so in processing, can use computer design and create easily.Can't use computer design and must artificial make unlike drop-stopping ring of the prior art, quite consuming time and cost is high.
Above-mentioned valve seat cooperates the design of this three off-axis, 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 of valve seat top has slow gradient; And the below of the inner edge of valve seat has a steeper gradient; And this two gradient just in time is consistent with the gradient of this eccentric cone.The gradient of whole inner edge then sequentially is successional change downwards by the top.
Because the design of above-mentioned eccentric cone is so that the drop-stopping ring of ring-type can be with respect to its axle center formation circular symmetry radially.Be the structure of this circular symmetry when this drop-stopping ring is installed in the 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 that forms with respect to its axle center, thus quite simple on making, and can't directive problem when installing, this drop-stopping ring can directly embed in this valve body with either direction.Instant when drop-stopping ring slides, still can reach the purpose of sealing.
One side cover body 4, these side cover body 4 pipe diameter sizes are corresponding to the size of the caliber through hole of this valve body, and the one side of this side cover body 4 is provided with several screws, and this side cover body uses several screws 40, passes those screws, and locking is on a side of this caliber through hole.
Please refer to shown in Figure 3, generalized section for the utility model elements combination, when assembling, first this valve seat is entered by these caliber through hole 11 1 sides, this drop-stopping ring 32 is inserted in this valve body, again this sealing packing ring 33 is inserted in the chase of this valve seat 30, entered by these caliber through hole 11 1 sides equally, at last this side cover body 4 is inserted this caliber through hole 11, and use those screws that its side cover body 4 is locked on this valve body.This leakage preventing mechanism is installed between side cover body and the valve body in the close-fitting mode, only needs during maintenance this side cover body is disassembled, and this leakage preventing mechanism can be taken out, quite easily maintenance.
In sum, the design of consideration of the utility model hommization, quite actual demand.It has specifically improved existing disappearance.
Above-listed detailed description is specifying for a possible embodiments of the present utility model, but this embodiment limits claim of the present utility model, allly do not break away from the equivalence that the utility model skill spirit does and implement or change, all should be contained in the claim of the present utility model.
Claims (7)
1. three eccentric valves of the drop-stopping ring of a tool symmetry is characterized in that, comprise:
A valve body, this valve body have a valve chamber; A valve seat is placed in this valve chamber; It is circular that this valve seat slightly is, and the radial cross section of this valve seat is trapezoidal;
A valve member, this valve member are arranged in this valve chamber, its this valve seat of outer rim contact of this valve member, this valve member be axially arranged with an axis hole, a valve rod passes this axis hole, with the unlatching of controlling this valve member and close and the flow of control by fluid;
This valve member (31) forms asymmetric taper, it is formed two the line stretcher (R of lateral margin on both sides up and down, R ') asymmetric, the line stretcher (R) of top lateral margin with respect to the absolute value of the slope of the center line of this valve member (31) 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 these two line of dip (R, R ') extend toward left and be an intersection point (I), the 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; And
A drop-stopping ring (32), this drop-stopping ring (32) are O shape ring, 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 the axis by this drop-stopping ring (32) center.
2. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1, it is characterized in that, if the angle between the formed line stretcher of lateral margin (R) of this valve member (31) top and the center line of this valve body (Q ') is C, scope circle of this angle C is in 2.5 degree between 10 degree.
3. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1 is characterized in that, establishing intersection point (I) to the line at valve body center is L, and then the angle between line L and this line stretcher R is made as D, and scope circle of this angle D is in 10 degree between 30 degree.
4. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1, it is characterized in that, if making vertical line to the intersection point of the center line of this valve body (1) (Q ') by intersection point (I) is I ', then I ' is to the distance bound at valve body center between the 90mm to 1500mm.
5. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1 is characterized in that, ring of this valve member center portion projection, and be provided with a chase near the outer rim place; A sealing packing ring is positioned at the chase of this valve member, and between this valve member and this drop-stopping ring.
6. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1, it is characterized in that, the shaft axis (P) of this valve member longitudinal direction rotating shaft radially departs from the up and down center line that consists of of two ends (P ') of this valve body cross section, and so that this shaft axis (P) and this center line between (P ') spacing of existence (A) to consist of eccentric state; And
The longitudinal center line of this valve member (Q) departs from the center line (Q ') of this valve body, and has a gap (B) between (Q ') so that the center line of this longitudinal center line (Q) and this valve body and consist of another eccentric point.
7. three eccentric valves of the drop-stopping ring of tool symmetry as claimed in claim 1, it is characterized in that, this drop-stopping ring is the ring that falope ring or graphite or PTEF material consist of, and the top of this drop-stopping ring props up this valve seat, and it is stressed can evenly distributing that this drop-stopping ring can touch any point of this valve seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391568 CN202834119U (en) | 2012-08-08 | 2012-08-08 | Three-eccentric valve with symmetric leaking stopping ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220391568 CN202834119U (en) | 2012-08-08 | 2012-08-08 | Three-eccentric valve with symmetric leaking stopping ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202834119U true CN202834119U (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220391568 Expired - Fee Related CN202834119U (en) | 2012-08-08 | 2012-08-08 | Three-eccentric valve with symmetric leaking stopping ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202834119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574073A (en) * | 2012-08-08 | 2014-02-12 | 进典工业股份有限公司 | Three-eccentric valve with symmetric leakage stop ring |
-
2012
- 2012-08-08 CN CN 201220391568 patent/CN202834119U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103574073A (en) * | 2012-08-08 | 2014-02-12 | 进典工业股份有限公司 | Three-eccentric valve with symmetric leakage stop ring |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20200808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |