CN203176425U - Sealing structure of valve - Google Patents
Sealing structure of valve Download PDFInfo
- Publication number
- CN203176425U CN203176425U CN 201320095213 CN201320095213U CN203176425U CN 203176425 U CN203176425 U CN 203176425U CN 201320095213 CN201320095213 CN 201320095213 CN 201320095213 U CN201320095213 U CN 201320095213U CN 203176425 U CN203176425 U CN 203176425U
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- China
- Prior art keywords
- valve
- seal ring
- valve body
- flap
- supporting plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a sealing structure of a valve, and belongs to the technical field of valve components. The sealing structure of the valve solves the problem that due to the fact that a seal ring is worn, the sealing performance becomes poor. According to the sealing structure of the valve, the valve comprises a valve body and a valve clack arranged in the valve body, a rotary shaft capable of driving the valve clack to be opened and closed is arranged in the valve body, two ends of the valve clack are respectively provided with a seal ring, and power assistance mechanisms capable of pushing the seal rings to abut against the valve clack are arranged between the two seal rings and the inner wall of the valve body. The sealing structure of the valve can achieve the fact that though the valve is used for a long time, the sealing performance of the valve cannot be reduced.
Description
Technical field
The utility model belongs to the valve part technical field, relates to a kind of sealing configuration of valve.
Background technique
Valve is the controlling component in the fluid delivery system along with the generation of fluid circuit produces, have by, adjusting, water conservancy diversion, prevent functions such as adverse current, voltage stabilizing, shunting or overflow pressure release.The valve that is used for liquid control system, from the simplest stop valve to very complicated robot control system(RCS) used various valves, its kind and specification are quite various.Valve can be used for controlling flowing of all kinds fluids such as air, water, steam, various Korrosionsmedium, mud, oil product, liquid metal and radiating medium.Valve is industrial a kind of important fluid control apparatus, and it is all multidisciplinary to relate to national economy, is the development and national economy fundamental equipments.Through the development of decades, China's valve products has formed tens big classes, especially is being sure to occupy prostatitis, the world aspect number of the enterprise and the volume of production and marketing two.Valve is of a great variety, and gate valve, stop valve, throttle valve, Gauge Valves etc. are arranged.Because the purposes of valve is widely, so its role also is very big.For example: valve can be controlled the running of boiler and steam turbine in the power station; In oil, Chemical Manufacture, valve equally also plays the normal operation of the whole manufacturing mechanisms of control and technological process.
Because the material of valve control, mobile big as rock gas, water, steam etc., therefore each turning joint all will be carried out encapsulation process, as the two ends at flap seal ring is installed, but the general mode that contacts with valve flap surface that adopts of valve sealing ring is in the market finished sealing, surface of contact is bigger, and this kind sealing means forms the gap easily, so sealing is poor.
At the problems referred to above, China's utility application (201120430662.4) discloses a kind of valve sealing ring, comprise circle body, position contacting had annular protrusion when the circle body inboard sealed with flap, annular protrusion can form the sealing contact that contacts near line with flap, surface of contact is little, so good sealing effect.But because valve often is in open and-shut mode, the rotation meeting of flap produces friction to seal ring, makes seal ring produce wearing and tearing, annular protrusion especially, and easier being worn, and the seal ring after the wearing and tearing is because size decreases, so sealing can reduce.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of sealing configuration of valve, and the sealing configuration of this valve can make the sealing of valve can not reduce because of long-time the use.
The purpose of this utility model can realize by following technical proposal: a kind of sealing configuration of valve, described valve comprises valve body and is arranged on the interior flap of valve body, in valve body, also be provided with a rotating shaft that can drive the flap opening and closing, it is characterized in that, the two ends of described flap are equipped with a seal ring, are equipped with between described two seal rings and the valve interior wall can promote seal ring and be resisted against servomechanism on the flap.
The rotation of flap can bring the open and close of valve; Seal ring and flap are inconsistent, owing to be provided with between seal ring and the valve body and can promote seal ring and be resisted against servomechanism on the flap, when seal ring is worn a bit, no matter its size how, servomechanism all can promote seal ring being resisted against on the flap tightly, thereby the sealability that guarantees valve can not reduce because of the wearing and tearing of seal ring.
In the sealing configuration of above-mentioned valve, described servomechanism comprises the supporting plate that is provided with an annular between seal ring end face and the valve interior wall, the position that described valve body is relative with supporting plate evenly offers some blind holes, in blind hole, be provided with spring, one end of described spring is resisted against the bottom surface of blind hole, the other end against supporting plate on.Spring withstands on the supporting plate, and its elastic force makes supporting plate promote seal ring being pressed on the valve tightly, and when ring wear falls a bit, then spring stretches out a bit, therefore can guarantee that the sealability of valve can not reduce because of the wearing and tearing of seal ring.
In the sealing configuration of above-mentioned valve, the cross section of described seal ring is triangular in shape, and inner side surface and the flap of seal ring lean, and outer side surface and the valve interior wall of seal ring lean.Because the wearing and tearing of seal ring, the end face of seal ring can leave valve interior wall gradually, and the outer side surface that the thrust of supporting plate can make seal ring being pressed on the valve interior wall tightly guarantees sealing.
In the sealing configuration of above-mentioned valve, the width of described supporting plate is less than the width of seal ring end face.The outer side surface of seal ring need compress mutually with valve interior wall, and the width of supporting plate avoids supporting plate against valve interior wall less than the width of seal ring end face, thereby influences sealing.
In the sealing configuration of above-mentioned valve, have some annular protrusions on the inner side surface of described seal ring.Make that producing line between seal ring and the flap contact sealing of raising valve.
Compared with prior art, the sealing configuration of this valve has the following advantages:
1, owing to be provided with servomechanism between seal ring and the valve body, can dynamic seal ring being resisted against on the flap tightly, so the sealability of valve can not reduce because of the wearing and tearing of seal ring.
2, mobile and against valve interior wall because the width of supporting plate less than the width of seal ring end face, therefore can be avoided supporting plate, thus sealing influenced.
3, owing to have some annular protrusions on the inner side surface of seal ring, make that producing line between seal ring and the flap contact, so improved the sealing of valve.
Description of drawings
Fig. 1 is the structure sectional view of the sealing configuration of valve.
Fig. 2 is the structure enlarged view at A place among Fig. 1.
Among the figure, 1, valve body; 11, blind hole; 2, flap; 3, rotating shaft; 4, seal ring; 41, annular protrusion; 5, servomechanism; 51, supporting plate; 52, spring.
Embodiment
Below be specific embodiment of the utility model and by reference to the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiments.
As shown in Figure 1, a kind of sealing configuration of valve, valve comprise valve body 1 and flap 2, and flap 2 is arranged in the valve body 1, and its rotation can bring the open and close of valve, also are provided with a rotating shaft 3 in valve body 1, and this rotating shaft 3 can drive flap 2 and rotate.The two ends of flap 2 are equipped with a seal ring 4, be equipped with servomechanism 5 between this two seal ring 4 and valve body 1 inwall, this servomechanism 5 can promote seal ring 4 and tightly be resisted against on the flap 2, when seal ring 4 is worn a bit, no matter its size how, servomechanism 5 all can promote seal ring 4 being resisted against on the flap 2 tightly, thereby the sealability that guarantees valve can not reduce because of the wearing and tearing of seal ring 4.
Specifically, in conjunction with shown in Figure 2, servomechanism 5 comprises the supporting plate 51 of an annular, this supporting plate 51 is arranged between seal ring 4 end faces and valve body 1 inwall, valve body 1 and supporting plate 51 relative positions evenly offer blind hole 11, in blind hole 11, be provided with spring 52, one end of spring 52 is resisted against the bottom surface of blind hole 11, the other end against supporting plate 51 on, its elastic force makes supporting plate 51 promote seal rings 4 being pressed on the flap 2 tightly, when seal ring 4 wears away a bit, then spring 52 stretches out a bit, therefore can guarantee that the sealability of valve can not reduce because of the wearing and tearing of seal ring 4.
Because the wearing and tearing of seal ring 4, the end face of seal ring 4 can leave valve body 1 inwall gradually, therefore the cross section of seal ring 4 is triangular in shape, the inner side surface of seal ring 4 and flap 2 lean, the outer side surface of seal ring 4 and valve body 1 inwall lean, the outer side surface that the thrust of supporting plate 51 can make seal ring 4 being pressed on valve body 1 inwall tightly guarantees sealing.The width of supporting plate 51 is less than the width of seal ring 4 end faces, avoids supporting plate 51 because mobile and against valve body 1 inwall, thereby influences sealing.Have some annular protrusions 41 on the inner side surface of seal ring 4, make that producing line between seal ring 4 and the flap 2 contact the sealing of raising valve.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used terms such as valve body 1, blind hole 11, flap 2, rotating shaft 3, seal ring 4, annular protrusion 41, servomechanism 5, supporting plate 51, spring 52 morely, do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (5)
1. the sealing configuration of a valve, described valve comprises valve body (1) and is arranged on the interior flap (2) of valve body (1), in valve body (1), also be provided with a rotating shaft (3) that can drive flap (2) opening and closing, it is characterized in that, the two ends of described flap (2) are equipped with a seal ring (4), are equipped with between described two seal rings (4) and valve body (1) inwall can promote seal ring (4) and be resisted against servomechanism (5) on the flap (2).
2. the sealing configuration of valve according to claim 1, it is characterized in that, described servomechanism (5) comprises the supporting plate (51) that is provided with an annular between seal ring (4) end face and valve body (1) inwall, the position that described valve body (1) is relative with supporting plate (51) evenly offers some blind holes (11), in blind hole (11), be provided with spring (52), one end of described spring (52) is resisted against the bottom surface of blind hole (11), the other end against supporting plate (51) on.
3. the sealing configuration of valve according to claim 2 is characterized in that, the cross section of described seal ring (4) is triangular in shape, and the inner side surface of seal ring (4) and flap (2) lean, and the outer side surface of seal ring (4) and valve body (1) inwall lean.
4. according to the sealing configuration of claim 2 or 3 described valves, it is characterized in that the width of described supporting plate (51) is less than the width of seal ring (4) end face.
5. the sealing configuration of valve according to claim 4 is characterized in that, has some annular protrusions (41) on the inner side surface of described seal ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095213 CN203176425U (en) | 2013-03-02 | 2013-03-02 | Sealing structure of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320095213 CN203176425U (en) | 2013-03-02 | 2013-03-02 | Sealing structure of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203176425U true CN203176425U (en) | 2013-09-04 |
Family
ID=49073122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320095213 Expired - Fee Related CN203176425U (en) | 2013-03-02 | 2013-03-02 | Sealing structure of valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203176425U (en) |
-
2013
- 2013-03-02 CN CN 201320095213 patent/CN203176425U/en not_active Expired - Fee Related
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Legal Events
| 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: 20130904 Termination date: 20140302 |