CN201373129Y - Sealing device and valve - Google Patents
Sealing device and valve Download PDFInfo
- Publication number
- CN201373129Y CN201373129Y CN200920001867U CN200920001867U CN201373129Y CN 201373129 Y CN201373129 Y CN 201373129Y CN 200920001867 U CN200920001867 U CN 200920001867U CN 200920001867 U CN200920001867 U CN 200920001867U CN 201373129 Y CN201373129 Y CN 201373129Y
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- Prior art keywords
- guide ring
- parts
- shaft shoulder
- stop member
- seal arrangement
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Abstract
The utility model discloses a sealing device and a valve. The sealing device comprises a first part with a hole, a second part, an O-shaped ring, a first guide ring, a second guide ring, a first stop part and a second stop part, wherein the second part is arranged inside the hole of the first part and is provided with a first shaft shoulder and a second shaft shoulder, and the peripheral surface of the second part is provided with an annular groove; the O-shaped ring is arranged inside the annular groove. The second part is axially positioned through the first and the second stop parts relative to the first part, and the first guide ring is arranged between the first shaft shoulder and the first stop part, and the second guide ring is arranged between the second shaft shoulder and the second stop part. The annular surface of the first shaft shoulder is of a truncated-cone-shaped surface, and the axial end surface which is opposite to the first shaft shoulder of the first guide ring also forms a truncated-cone-shaped surface, so that being born the axial pressure, the first guide ring is prone to slide outwards in the radial direction; the first guide ring is made of the material with elasticity and a sealing function, and at the assembly state, the first guide ring bears the axial pressure to produce a pre-determined decrement.
Description
Technical field
The utility model relates to the valve of a kind of seal arrangement and employing sealing device.
Background technique
Have relative movement each other, such as relatively rotate or relative to linear move or exist simultaneously relatively rotate and move relative to linearity, two parts between, the realization reliable sealing is a difficult point always.Traditional design be with static sealing and dynamic seal (packing) by a sealed member, for example O shape ring is born, Fig. 1 shows the ball valve 100 that adopts this kind O shape ring.
As illustrated in fig. 1 and 2, ball valve 100 comprise be arranged in the valve pocket, as the spheroid 10 of open-shut device and in order to drive the valve rod 3 that spheroid rotates, this valve rod 3 is made by brass or stainless steel.Be formed with groove 11 and penetration hole 12 on the spheroid, and that an end of valve rod 3 is formed with is suitable and be plugged in shank 32 in this groove with groove 11.
As shown in Figure 2, valve rod main part 31 is installed in the hole 21 that the overhanging sleeve 20 that the ball valve Subject Extension goes out is limited, and encircles 1 sealing that realizes between valve rod main part and the overhanging sleeve lining by means of the O shape that is installed in the circular groove 33 that forms on the valve rod main part.
In addition, as shown in Figure 2, ball valve also comprises two by RPTFE (promptly being added with the teflon (polytetrafluoroethylene) of carbon fiber, glass fibre or molybdenum disulfide etc.) guide ring of making 2 and the pad of being made by stainless steel 4, two guide rings 2 are separately positioned on the axial two ends of valve rod main part 31, wherein bottom guide ring 2 is arranged between valve rod main part bottom shoulder 35 and the annular flange flange 40, and this annular flange flange 40 is formed between ball valve valve pocket and the overhanging sleeve; And top guide ring 2 is arranged between valve rod main part top shoulder 36 and the pad 4.Surface friction drag when guide ring 2 rotates in order to reduce valve rod is also guaranteed the centering of valve rod in the hole 21 of overhanging sleeve, and pad 4 is in order to be fixed in valve rod in the overhanging sleeve.As shown in Figure 2, overhanging sleeve is formed with the extension part 22 of wall thickness reduction in an end that deviates from valve pocket, and under assembled state, extension part bends inwards and is pressed against pad 4, thus with valve rod together with guide ring 2 fix in position.
In addition, be formed with outside thread on the overhanging sleeve, and ball valve is provided with the bonnet of being made by brass 5 in addition, and is formed with internal thread on the bonnet 5, thereby bonnet 5 is connected on the overhanging sleeve by means of being threaded.As shown in Figure 2, bonnet seal 6 is arranged between overhanging sleeve and the bonnet 5, in order to realize sealing between the two.Thereby, realize the additional seal protection of ball valve by means of bonnet.
At this traditional ball valve that is used for refrigeration system, O shape ring is made by CR rubber because CR rubber can with multiple refrigeration agent and lubricated oil phase compatibility; And O shape ring is used to realize the sealing of ball valve.
Yet, between the valve rod 3 of relative movement and overhanging sleeve 20, adopt O shape ring can not realize gratifying sealing effect, because after the wearing and tearing of O shape ring, its wear extent can not be compensated, cause sealing effect to descend.Therefore, O shape ring is suitable for use as the static sealing element, and should not be as dynamic sealing element.
In addition, for the ball valve that is used for the pressure fluid system,, cause the O circle to shear easily because there is big pressure reduction in O shape ring both sides.See also Fig. 3 A and 3B, it shows O shape ring both sides respectively and has the damage that O shape ring is sheared and O shape ring causes because of shearing that causes under the situation of pressure reduction.Give birth in the environment-development of O shape under the situation of fail in shear, can have a strong impact on its sealing effect.
Therefore, between the parts of relative movement and at the valve that is used for transmitting pressure fluid, adopt O shape ring to have the defective that sealing effect As time goes on descends gradually as seal element, thereby may cause the leakage of fluid, and the external leaks amount of fluid is to weigh the major criterion of sealing configuration quality quality.In addition, guide ring 2 does not almost have elasticity and does not have sealing function, and can not guarantee the centering of valve rod in the hole 21 of overhanging sleeve automatically.
The model utility content
As mentioned above, in conventional art, such as the ball valve that is used for refrigeration system, static, dynamic seal (packing) encircles by O shape and bears, and this certainly will cause the seal pattern life-span to reduce, cost strengthens.Therefore, there is the demand that, sealing life low to cost is long, be applicable to the sealing configuration of static state and dynamic seal (packing) in the industry.
Therefore, the purpose of this utility model provides a kind of seal arrangement, and it can realize static sealing and dynamic seal (packing) double effects.
Another purpose of the present utility model provides a kind of seal arrangement, and it can realize the automatic centering of two relative movement parts when guaranteeing two excellent sealings between the relative movement part.
For achieving the above object,, provide a kind of seal arrangement according to the utility model first aspect,
Comprise:
First parts, these first parts form porose;
Second parts, these second parts are installed in the described hole of first parts and can rotate with respect to described first parts, and these second parts are formed with two first shaft shoulders that axially are spaced apart from each other and second shaft shoulder, and at least one annular groove that is formed with on its outer circumferential face between described first shaft shoulder and second shaft shoulder;
O shape ring, this O shape ring is arranged in the described annular groove of described second parts;
First guide ring and second guide ring; And
First stop member and second stop member, described first stop member and second stop member or integrally formed or be maintained fixed with respect to described first parts with described first parts;
Wherein, described second parts utilize described first stop member and second stop member to locate with respect to described first component axial, described first guide ring is between described first shaft shoulder and first stop member, and described second guide ring is between described second shaft shoulder and second stop member
The annular surface of described first shaft shoulder is a frusta-conical surface, and the axial end relative with described first shaft shoulder of described first guide ring forms and the suitable frusta-conical surface of the frusta-conical surface of described first shaft shoulder, makes described first guide ring tend to radially outward when bearing axial pressure and slides;
Wherein, described first guide ring is made by the material with elasticity and sealing function, and under the assembled state of described seal arrangement, described first guide ring bears axial pressure and produces predetermined decrement.
Preferably, the annular surface of described second shaft shoulder is a frusta-conical surface, and the axial end relative with described second shaft shoulder of described second guide ring forms and the suitable frusta-conical surface of the frusta-conical surface of described second shaft shoulder, makes described second guide ring tend to radially outward when bearing axial pressure and slides.
Preferably, described second guide ring is made by the material with elasticity and sealing function, and under the assembled state of described seal arrangement, described second guide ring bears axial pressure and produces predetermined decrement.
Preferably, described second parts are at two annular grooves that are formed with on its outer circumferential face between described first shaft shoulder and second shaft shoulder, and each annular groove is provided with an O shape ring.
Preferably, described O shape ring is made by CR rubber.
Preferably, described first guide ring is made by PTFE.
Preferably, described second guide ring is made by PTFE.
Preferably, a stop member in described first stop member and second stop member comprises pad, and described first parts comprise the portion that extends axially of wall thickness reduction, and under the assembled state of seal arrangement, this portion of extending axially radially bends inwards and is pressed against described pad with described spacers; Another stop member in described first stop member and second stop member is formed by the bead of radially inwardly stretching out from described first parts.
Preferably, described seal arrangement also comprises cap, is formed with internal thread on this cap, and is formed with outside thread on described first parts, and described cap is connected in described first parts by means of being threaded, and Sealing is arranged between described cap and described first parts.
Preferably, described first guide ring and/or state second guide ring and can radially outward when bearing axial pressure slide.
According to the utility model on the other hand, provide a kind of valve, having comprised:
Valve body, this valve body limits a valve pocket;
Be arranged on the open-shut device in the described valve pocket;
Valve rod is operatively connected with described open-shut device and in order to rotate described open-shut device; And
Seal arrangement according to the utility model first aspect;
Wherein said valve body comprises that from the extended overhanging sleeve of valve body this overhanging sleeve is as described first parts, and described valve rod is as described second parts.
Preferably, described valve is a ball valve.
Adopt the technical solution of the utility model, realized the double effects of static sealing and dynamic seal (packing) with simple structure, and static sealing and dynamic seal (packing) independent design toward each other, the life-span and the cost that have prolonged dynamic seal (packing) and static sealing are low.Simultaneously, adopt technical solutions of the utility model, when guaranteeing two excellent sealings between the relative movement part, realized the automatic centering of two relative movement parts.
In addition, adopt the technical solution of the utility model, realized proportional leakage protection with respect to hydrodynamic pressure.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail, wherein
Fig. 1 is a perspective cut-away schematic view, shows traditional ball valve that is applied in the refrigeration system;
Fig. 2 is a partial cross sectional views, shows the sealing configuration of the ball valve among Fig. 1;
Fig. 3 A is the local axial section view that amplifies, and shows O shape ring both sides and exists the O shape ring that causes under the situation of pressure reduction to shear; Fig. 3 B is the cross sectional view of O shape ring, shows the damage that O shape ring causes because of shearing;
Fig. 4 is the view that is similar to Fig. 2, is that example shows according to sealing configuration of the present utility model with the ball valve;
Fig. 5 A is the axial section view of the utility model valve rod, is equiped with O shape ring on it and according to guide ring of the present utility model; Fig. 5 B is the partial enlarged view of part A among Fig. 5 A;
Fig. 6 is the partial cross sectional views of the utility model sealing configuration, and it illustrates the sealing principle of the utility model guide ring; And
Fig. 7 is the axial section view, shows according to guide ring of the present utility model.
Embodiment
Be that example is described in detail sealing configuration of the present utility model below with the refrigerating ball valve, this ball valve can be used for for example freezing and air-conditioning system.At this, should be pointed out that embodiment of the present utility model only is exemplary, it only is used to illustrate principle of the present utility model and unrestricted the utility model.It will be apparent for a person skilled in the art that the utility model sealing configuration is not limited to be used for ball valve, also can be used for valve, but also can be used for the occasion that any needs are realized similar dynamic seal (packing) such as other types such as butterfly valve, stopcocks.
In the following description, will give identical reference character with the structure member that prior art is similar, and its description will give simply.
At first referring to Fig. 4, it shows according to sealing configuration of the present utility model.As shown in Figure 4, the parts that are associated with sealing configuration of the present utility model comprise: the valve rod of making by for example brass or stainless steel 3, be installed in O shape ring 1 in the circular groove 33 that forms on the valve rod main part 31, that make by for example CR rubber, the pad 4 made by for example stainless steel and overhanging sleeve 20 etc.
The parts that are associated with additional seal protection comprise the bonnet 5 made by for example brass, be arranged on bonnet seal 6 between overhanging sleeve 20 and the bonnet 5, that made by for example PTFE.Similarly, be formed with outside thread on the overhanging sleeve 20, and be formed with internal thread on the bonnet 5, bonnet 5 is by means of being threaded on the overhanging sleeve 20.
According to sealing configuration of the present utility model, also comprise two guide rings 2, two guide rings 2 are separately positioned on the axial two ends of valve rod main part 31, wherein bottom guide ring 2 is arranged between valve rod main part bottom shoulder 35 and the annular flange flange 40, and this annular flange flange 40 is formed between ball valve valve pocket and the overhanging sleeve 20 and is used as stop member; And top guide ring 2 is arranged between valve rod main part top shoulder 36 and the pad 4, and this pad 4 is as another stop member.
According to the utility model, guide ring 2 can be realized following function: the surface friction drag when 1) reducing the valve rod rotation; 2) guarantee the automatic centering of valve rod in the hole 21 of overhanging sleeve; 3) realize sealing function.Therefore, guide ring 2 should adopt wear-resistant, friction factor is little, the material that has sealing function and produce resiliently deformable is under pressure made.Thereby the surface friction drag when guide ring 2 can reduce the valve rod rotation is also realized dynamic seal (packing).The material that can be used for making guide ring 2 comprises that PTFE, rubber, carbon fiber, asbestos, graphite, ceramic fiber and other are suitable for the material of this purpose, and wherein PTFE is the comparatively preferable material that is used to make guide ring 2.
Shown in Fig. 4-6 was detailed, according to the utility model, the valve rod main part was formed with two annular grooves 33, in order to installing O shape ring.Need to prove that the valve rod main part also can only be formed with an annular groove, or be formed with plural annular groove.
The annular surface of the top shoulder 36 of valve rod main part is not perpendicular with valve rod axis, and it is a frusta-conical surface, and and the perpendicular plane of valve rod axis between form a sharp angle 1; In other words, the annular surface of the top shoulder 36 of valve rod main part is downward-sloping to radial outside from radially inner side in the accompanying drawings.
Similarly, the annular surface of the bottom shoulder 35 of valve rod main part is not perpendicular with valve rod axis, and it is a frusta-conical surface, and and the perpendicular plane of valve rod axis between form an acute angles beta 1; In other words, the annular surface of the bottom shoulder 35 of valve rod main part is inclined upwardly to radial outside from radially inner side in the accompanying drawings.
See also Fig. 7, it is the axial section view of guide ring 2.As shown in Figure 7, an axial end 25 of guide ring 2 is not perpendicular with the axis of guide ring 2, but and and the perpendicular plane of guide ring 2 axis between form a sharp angle 2 or β 2.
Preferably, α 1 equates substantially each other that with α 2 values β 1 equates each other substantially with β 2 values.Consider factors such as machining error, also angle [alpha] 2 can be designed to be a bit larger tham α 1, for example α 2=α is 1+2 °; And similarly, angle beta 2 can be designed to be a bit larger tham β 1, for example β 2=β is 1+2 °.In the ordinary course of things, α (α 1 and α 2) can be designed to value with β (β 1 and β 2) equates each other substantially; But can α (α 1 and α 2) and β (β 1 and β 2) be designed to according to the different requirements of design: α (α 1 and α 2) does not wait each other with β (β 1 and β 2) value yet.
Just guarantee valve rod with regard to the automatic centering in the hole 21 of overhanging sleeve, the span of angle [alpha] or β is not subjected to special restriction.But do the time spent being subjected to axial pressure in order to ensure guide ring, can slide and then realize reliable dynamic seal (packing) effect along the annular surface radially outward of valve rod main part shoulder, the span of angle [alpha] or β will be subjected to certain restriction, α or β at least should be greater than friction angle promptly from the locking angles in theory, this point is that the Professional visitors is known, therefore is not further described in detail here.
In addition, known as the Professional visitors, friction angle or different because of the difference of the friction factor of friction pair material from the locking angle.Therefore, when not simultaneously in order to the material of making guide ring and valve rod, friction angle or also can be different from the locking angle; Correspondingly, be used to guarantee guide ring be subjected to axial pressure make the span of angle [alpha] that the time spent can slide along the annular surface radially outward of valve rod main part shoulder or β also can be different.In addition, the value of angle [alpha] or β can be selected according to the size of guide ring compression volume and the axial initial compression amount of guide ring.Therefore, can radially outward slide realizing with regard to the reliable dynamic seal (packing) effect with regard to guide ring, the not special restriction of the span of angle [alpha] or β, but need greater than friction angle or from the locking angle.
See also Fig. 4, under assembled state, the inclined end face 25 of top guide ring 2 is fitted each other with the annular surface of the top shoulder 36 of valve rod main part, and the inclined end face 25 of bottom guide ring 2 is fitted each other with the annular surface of the bottom shoulder 35 of valve rod main part.When the extension part 22 of overhanging sleeve bends inwards and is pressed against pad 4, upper and lower guide ring 2 is subjected to axial compression, make that the inclined end face of top guide ring 2 is pressured in the annular surface of the top of valve rod main part shoulder 36, and make that the inclined end face of bottom guide ring 2 is pressured in the annular surface of the bottom of valve rod main part shoulder 35.
Describe dynamic seal (packing) principle and the effect that realizes by guide ring 2 in detail below with reference to Fig. 6.Fig. 6 is the partial cross sectional views of the utility model sealing configuration, and it illustrates the sealing principle of the utility model guide ring.
As Fig. 6 in detail shown in, bending inwards by the extension part 22 with overhanging sleeve is pressed against pad 4, makes pad 4 be maintained fixed with respect to overhanging sleeve; Simultaneously, when the extension part 22 of overhanging sleeve bent inwards and is pressed against pad 4, pressure F1 acted on the pad 4, makes it to bear axial force F 2 and pad 4 transfers the pressure to top guide ring 2; Similarly, bottom guide ring 2 also bears the effect of axial force.Because this axial force, on the one hand, upper and lower guide ring 2 all is subjected to axial compression, makes the inclined end face of guide ring 2 be pressed against the upper and lower shoulder 36 of valve rod main part and 35 annular surface respectively; On the other hand, upper and lower guide ring 2 slides along the upper and lower shoulder 36 of valve rod main part and 35 annular surface radially outward respectively, makes the radially-outer surface of guide ring 2 be pressed against the inwall of overhanging sleeve.So, form two sealing surfaces (seeing also Fig. 5 B in addition) at the radially-outer surface and the inclined end face place of guide ring 2, realized the sealing between valve rod and the overhanging sleeve lining.
Under assembled state, the initial compression amount H of guide ring 2 can determine according to practical application, perhaps can be determined by experiment in addition.
During operation, when since the hole of valve rod 3 at overhanging sleeve in rotation, when the axial surface of guide ring 2 or radial surface produce wearing and tearing, wear extent is compensated with respect to the outside in-migration in the footpath of valve rod by the initial compression amount and/or the guide ring 2 of guide ring, has therefore obtained reliable dynamic seal (packing) effect.
In addition,, avoid or reduced the generation of O shape ring shearing thus, thereby and then improved the life-span of O shape ring and improved the static sealing effect because the seal action of upper and lower guide ring has reduced the pressure difference of O shape annulate shaft to both sides.
As mentioned above, adopt sealing configuration of the present utility model,, realized good dynamic seal (packing) effect on the one hand, guaranteed the automatic centering of valve rod in the hole 21 of overhanging sleeve on the other hand by utilizing the inclined-plane attribute of the shaft shoulder and guide ring.And according to the utility model, can carry out controllable adjustment, adjust the operation life of dynamic seal (packing) thus the guide ring pre compressed magnitude.
In addition, adopt sealing configuration of the present utility model, sealing effect can carry out self adaption along with the variation of hydrodynamic pressure in the pressure fluid system to be regulated.As shown in Figure 4, when hydrodynamic pressure became big, top guide ring 2 further was compressed.As its result, the inclined end face of top guide ring 2 more closely is pressed against the annular surface of the top shoulder 36 of valve rod main part, and the radially-outer surface of guide ring 2 more closely is pressed against the inwall of overhanging sleeve, thereby guide ring 2 can provide proportional leakage protection with respect to hydrodynamic pressure.
In addition, because the seal action of upper and lower guide ring has reduced the pressure difference of O shape annulate shaft to both sides, auxiliary thus static sealing performance.Therefore, do not increasing under the condition of cost, can improve dynamic sealing performance and static sealing performance, improving the operation life of sealing simultaneously.
Below in conjunction with the accompanying drawings and embodiments the utility model is illustrated, but those skilled in the art are to be understood that, the foregoing description only is exemplary and nonrestrictive, under the condition that does not deviate from spirit and scope of the present utility model, can make all improvement to the foregoing description.
In the above embodiments, guide ring 2 with the utility model structure is arranged on the place, axial two ends of valve rod main part, as a kind of alternative plan, also can only the guide ring 2 with the utility model structure be set at an axial end place at the valve rod main part.
In addition, in the above embodiments, sealing configuration comprises that also bonnet 5 and bonnet seal 6 are to provide the additional seal protection.But this additional seal protection is not to be necessary, and it can be selected for use according to practical application.
In addition, the annular surface of the upper and lower shoulder 35,36 of valve rod main part with respect to formed angle [alpha] 1 in the perpendicular plane of valve rod axis and β 1, and similarly, the axial end of guide ring 2 with respect to and the perpendicular plane of guide ring axis between formed angle [alpha] 2 or β 2, be not limited to a certain specific numerical value, but can select for use according to practical application, as long as can realize aforesaid expectation function.
In addition, be preferred scheme though angle [alpha] 1 and/or α 2 and β 1 and/or β 2 are designed to can move with respect to the valve rod radially outward when guide ring is subjected to axial pressure, this is not that realization model utility purpose is necessary.
Claims (14)
1. seal arrangement comprises:
First parts, these first parts form porose;
Second parts, these second parts are installed in the described hole of first parts and can rotate with respect to described first parts, and these second parts are formed with two first shaft shoulders that axially are spaced apart from each other and second shaft shoulder, and at least one annular groove that is formed with on its outer circumferential face between described first shaft shoulder and second shaft shoulder;
O shape ring, this O shape ring is arranged in the described annular groove of described second parts;
First guide ring and second guide ring; And
First stop member and second stop member, described first stop member and second stop member or integrally formed or be maintained fixed with respect to described first parts with described first parts;
Wherein, described second parts utilize described first stop member and second stop member to locate with respect to described first component axial, described first guide ring is between described first shaft shoulder and first stop member, and described second guide ring is between described second shaft shoulder and second stop member
It is characterized in that,
The annular surface of described first shaft shoulder is a frusta-conical surface, and the axial end relative with described first shaft shoulder of described first guide ring forms and the suitable frusta-conical surface of the frusta-conical surface of described first shaft shoulder, makes described first guide ring tend to radially outward when bearing axial pressure and slides;
Wherein, described first guide ring is made by the material with elasticity and sealing function, and under the assembled state of described seal arrangement, described first guide ring bears axial pressure and produces predetermined decrement.
2. seal arrangement as claimed in claim 1, it is characterized in that, the annular surface of described second shaft shoulder is a frusta-conical surface, and the axial end relative with described second shaft shoulder of described second guide ring forms and the suitable frusta-conical surface of the frusta-conical surface of described second shaft shoulder, makes described second guide ring tend to radially outward when bearing axial pressure and slides.
3. seal arrangement as claimed in claim 2 is characterized in that, described second guide ring is made by the material with elasticity and sealing function, and under the assembled state of described seal arrangement, described second guide ring bears axial pressure and produces predetermined decrement.
4. as any one described seal arrangement among the claim 1-3, it is characterized in that described second parts are at two annular grooves that are formed with on its outer circumferential face between described first shaft shoulder and second shaft shoulder, each annular groove is provided with an O shape ring.
5. seal arrangement as claimed in claim 4 is characterized in that, described O shape ring is made by CR rubber.
6. seal arrangement as claimed in claim 1 is characterized in that, described first guide ring is made by PTFE.
7. seal arrangement as claimed in claim 3 is characterized in that, described second guide ring is made by PTFE.
8. as any one described seal arrangement among the claim 1-3, it is characterized in that, a stop member in described first stop member and second stop member comprises pad, and described first parts comprise the portion that extends axially of wall thickness reduction, under the assembled state of seal arrangement, this portion of extending axially radially bends inwards and is pressed against described pad with described spacers; Another stop member in described first stop member and second stop member is formed by the bead of radially inwardly stretching out from described first parts.
9. as any one described seal arrangement among the claim 1-3, it is characterized in that, also comprise cap, be formed with internal thread on this cap, and be formed with outside thread on described first parts, described cap is connected in described first parts by means of being threaded, and Sealing is arranged between described cap and described first parts.
10. as any one described seal arrangement among the claim 1-3, it is characterized in that described first guide ring can slide by radially outward when bearing axial pressure.
11. seal arrangement as claimed in claim 3 is characterized in that, described second guide ring can slide by radially outward when bearing axial pressure.
12., it is characterized in that described first guide ring and described second guide ring can slide by radially outward as claim 1 or 3 described seal arrangements when bearing axial pressure.
13. a valve comprises:
Valve body, this valve body limits a valve pocket;
Be arranged on the open-shut device in the described valve pocket;
Valve rod is operatively connected with described open-shut device and in order to rotate described open-shut device; And
As any one described seal arrangement among the claim 1-12;
Wherein said valve body comprises that from the extended overhanging sleeve of valve body this overhanging sleeve is as described first parts, and described valve rod is as described second parts.
14. valve as claimed in claim 13 is characterized in that, described valve is a ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920001867U CN201373129Y (en) | 2009-01-22 | 2009-01-22 | Sealing device and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920001867U CN201373129Y (en) | 2009-01-22 | 2009-01-22 | Sealing device and valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201373129Y true CN201373129Y (en) | 2009-12-30 |
Family
ID=41499210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920001867U Expired - Lifetime CN201373129Y (en) | 2009-01-22 | 2009-01-22 | Sealing device and valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201373129Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083696A1 (en) * | 2009-01-22 | 2010-07-29 | 丹佛斯（天津）有限公司 | Sealing device and valve |
| CN106051203A (en) * | 2016-07-13 | 2016-10-26 | 罗启明 | Stop valve |
-
2009
- 2009-01-22 CN CN200920001867U patent/CN201373129Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010083696A1 (en) * | 2009-01-22 | 2010-07-29 | 丹佛斯（天津）有限公司 | Sealing device and valve |
| CN101476623B (en) * | 2009-01-22 | 2011-09-07 | 丹佛斯（天津）有限公司 | Sealing device and valve |
| CN106051203A (en) * | 2016-07-13 | 2016-10-26 | 罗启明 | Stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20091230 Effective date of abandoning: 20090122 |