CN208010945U - Elastic packing butterfly valve - Google Patents
Elastic packing butterfly valve Download PDFInfo
- Publication number
- CN208010945U CN208010945U CN201820110407.3U CN201820110407U CN208010945U CN 208010945 U CN208010945 U CN 208010945U CN 201820110407 U CN201820110407 U CN 201820110407U CN 208010945 U CN208010945 U CN 208010945U
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- China
- Prior art keywords
- elastic
- seal ring
- ring
- annular groove
- elastic seal
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Abstract
The utility model discloses a kind of elastic packing butterfly valves, including valve body and valve disc, elastic seal ring is embedded with by trim ring on the valve body, which constitutes sealing pair with valve disc, and elastic seal ring inner peripheral surface constitutes the sealing surface of sealing pair with valve disc peripheral surface；It is both provided with an external annular groove and inner ring connected in star in the elastic seal ring both sides；Annular bead is equipped on the valve body and/or trim ring, which inserts on elastic seal ring side in external annular groove.Good seal can guarantee using the elastic packing butterfly valve of the utility model, and it is small to rub between rapid operation, sealing surface.
Description
Technical field
The utility model is related to a kind of valve more particularly to a kind of improvement of butterfly valve.
Background technology
Valve is used to control the flowing of various types fluid, and cut-out and throttling action are played on pipeline.The opening and closing element of butterfly valve
It is a discoidal butterfly plate valve disc, is rotated around the axis of valve rod in valve body, to achieve the purpose that keying or adjusting, is closed
The butterfly valve of state blocks liquid stream by the realization sealing that fits closely of sealing surface between valve disc and valve seat, close between valve disc and valve seat
Fitting closely for cover needs to generate a certain amount of flexible deformation by larger driving force, and sealing surface squeezes tighter, sealing
Effect is better, thus to reach ideal sealing effect its to open and close resistance also corresponding larger, brought to operation it is constant, and in valve
Door can have larger friction during opening and closing, sealing surface is easy to be damaged, and causes seal failure.
Utility model content
For the above-mentioned deficiency present in the prior art, the technical problem to be solved by the utility model is to provide a kind of bullets
Property sealed butterfly valve, it is ensured that good seal, and it is small to rub between rapid operation, sealing surface.
In order to solve the above-mentioned technical problem, a kind of elastic packing butterfly valve of the utility model, including valve body and valve disc, in institute
It states and elastic seal ring is embedded with by trim ring on valve body, which constitutes sealing pair, elastic seal ring inner circumferential with valve disc
Face constitutes the sealing surface of sealing pair with valve disc peripheral surface；It is both provided with an external annular groove and interior in the elastic seal ring both sides
Annular groove；Annular bead is equipped on the valve body and/or trim ring, which inserts in outer shroud on elastic seal ring side
In connected in star.
In said structure, due on the valve body by trim ring be embedded with elastic seal ring, the elastic seal ring with
Valve disc constitutes sealing pair, and elastic seal ring inner peripheral surface constitutes the sealing surface of sealing pair with valve disc peripheral surface, in the elastic packing
Circle both sides are both provided with an external annular groove and inner ring connected in star, then on the elastic seal ring two sides for forming sealing pair with valve disc
Set external annular groove and inner ring connected in star makes elastic seal ring more easily produce flexible deformation, bullet during the work time
Property sealing ring inner peripheral surface also just therefore can be preferably bonded with valve disc peripheral surface, obtain better seal effect, correspondingly,
So that elastic seal ring is generated corresponding flexible deformation and be bonded required active force with valve disc inner peripheral surface can be relatively small, valve opens
It is also just smaller to close required active force, operation will be laborsaving, and be bonded with elastic seal ring inner peripheral surface in valve disc peripheral surface
In the process, made due to the reduction of elastic seal ring elastic deformation force between the two normal pressure become smaller, frictional resistance is also just corresponding
Reduce, the friction during valve opening and closing can be made to reduce, the possibility of sealing surface wear substantially reduces, and life of valve is protected
Barrier.Again due to being equipped with annular bead on the valve body and/or trim ring, which inserts in outer shroud on elastic seal ring side
In connected in star, then set annular bead will play the role of stationary positioned to elastic seal ring, ensure that elastic seal ring is pacified
Dress is reliable, the operation is stable.
The step end face of a kind of preferred embodiment of the utility model, the trim ring end face and valve body hole constitutes sealing ring
Slot, the elastic seal ring are inlaid in the seal groove.Using the embodiment, elastic seal ring is easy for installation and positions
Reliably.
Another preferred embodiment of the utility model, the external annular groove or inner ring connected in star are that section is trapezoidal
Groove.Using the embodiment, the trapezoidal external annular groove in section or inner ring connected in star it is easily manufactured and convenient for generate institute
The flexible deformation needed.
Another preferred embodiment of the utility model, the external annular groove or inner ring connected in star are rectangular in cross-section
Groove.Using the embodiment, the rectangular in cross-section of external annular groove or inner ring connected in star equally can be in order to generating elasticity
It deforms and easily manufactured.
The geomery of the utility model further preferred embodiment, the external annular groove section is more than annular
The geomery of groove section.Using the embodiment, elastic seal ring is more also easy to produce flexible deformation at annular tongue outside,
The deformation of elastic seal ring inner peripheral portion can be relatively small in the course of work, convenient for keeping ideal sealing surface form.
The sealing surface of another further preferred embodiment of the utility model, the sealing pair is circular conical surface.Using this
Embodiment can meet the structural requirement of eccentric-butterfly-valve.
The another further preferred embodiment of the utility model, the annular bead section are trapezoidal.Using the implementation
Mode, the trapezoidal annular bead in section have the function of wedging, convenient for ensureing that the installation of elastic seal ring is fixed.
The further preferred embodiment of the utility model, the periphery of the annular bead and the periphery of external annular groove
It is in contact, gap is equipped between the inner circumferential of annular bead and the inner circumferential of external annular groove.Using the embodiment, annular bead can be right
The periphery wedging of elastic seal ring is fixed, to which guarantee implements reliable installation positioning to elastic seal ring and does not influence elastic close
The required elastic deformation space of seal.
Description of the drawings
The utility model elastic packing butterfly valve is described in further detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of structural schematic diagram of specific implementation mode of the utility model elastic packing butterfly valve；
Fig. 2 is the structure enlargement diagram at the positions A in structure shown in Fig. 1.
In figure：1- valve bodies, 2- trim rings, 3- elastic seal rings, 4- valve discs, 5- sealing pairs, 6- annular beads, 7- outer rings are recessed
Slot, 8- inner ring connected in stars.
Specific implementation mode
In elastic packing butterfly valve shown in Fig. 1, valve disc 4 is mounted on valve rod side and by valve rod rotating support in valve body
On 1, valve stem tip is sequentially connected by worm-and-wheel gear and driving handwheel, drives valve disc 4 to rotate by handwheel driving stem, real
The keying of existing valve；Elastic seal ring 3 is embedded with by trim ring 2 on valve body 1, which constitutes with valve disc 4 and seal
Pair 5,3 inner peripheral surface of elastic seal ring constitute the sealing surface of sealing pair 5 with 4 peripheral surface of valve disc, and the sealing surface of sealing pair 5 is circular cone
Face, 2 end face of trim ring and the step end face in 1 hole of valve body constitute seal groove, and the elastic seal ring 3 is inlaid in the seal groove
It is interior, referring to Fig. 2, an external annular groove 7 and inner ring connected in star 8 are both provided in 3 both sides of elastic seal ring, external annular groove 7 with
Inner ring connected in star 8 is the trapezoidal groove in section, and the geomery in 7 section of external annular groove is more than 8 section of inner ring connected in star
Geomery, on 1 step end face of valve body be equipped with annular bead 6, section is trapezoidal, and annular bead 6 inserts in elastic packing
Enclose on 3 sides in external annular groove 7, the periphery of annular bead 6 is in contact with the periphery of external annular groove 7, annular bead 6 it is interior
Gap is equipped between week and the inner circumferential of external annular groove 7.
Some specific implementation modes of the utility model are only listed above, but the utility model is not limited to that, also
More improvement and transformation can be made, such as external annular groove 7 and inner ring connected in star 8 may not be for section it is trapezoidal
Groove, and can be the groove of rectangular in cross-section, can also be the groove of section semicircular in shape；The annular bead 6 also may be used
It to be not arranged on 1 step end face of valve body, and can be provided on the end face of trim ring 2, can also be arranged simultaneously in valve body 1
On the end face of step end face and trim ring 2.And so on, as long as improvement made on the basis of the utility model basic principle
With transformation, it is regarded as falling into the scope of protection of the utility model.
Claims (8)
1. a kind of elastic packing butterfly valve, including valve body（1）And valve disc（4）, it is characterised in that：In the valve body（1）On pass through pressure
Circle（2）Embedded with elastic seal ring（3）, the elastic seal ring（3）With valve disc（4）Constitute sealing pair（5）, elastic seal ring（3）
Inner peripheral surface and valve disc（4）Peripheral surface constitutes sealing pair（5）Sealing surface；In the elastic seal ring（3）Both sides are both provided with one
External annular groove（7）With inner ring connected in star（8）；In the valve body（1）And/or trim ring（2）It is equipped with annular bead（6）, the ring
Shape flange collar（6）Insert in elastic seal ring（3）External annular groove on side（7）It is interior.
2. elastic packing butterfly valve according to claim 1, it is characterised in that：The trim ring（2）End face and valve body（1）Hole
Step end face constitutes seal groove, the elastic seal ring（3）It is inlaid in the seal groove.
3. elastic packing butterfly valve according to claim 1, it is characterised in that：The external annular groove（7）Or annular is recessed
Slot（8）For the trapezoidal groove in section.
4. elastic packing butterfly valve according to claim 1, it is characterised in that：The external annular groove（7）Or annular is recessed
Slot（8）For the groove of rectangular in cross-section.
5. requiring the elastic packing butterfly valve according to claim 1,3 or 4, it is characterised in that：The external annular groove（7）It cuts
The geomery in face is more than inner ring connected in star（8）The geomery in section.
6. elastic packing butterfly valve according to claim 1, it is characterised in that：The sealing pair（5）Sealing surface be circular cone
Face.
7. elastic packing butterfly valve according to claim 1, it is characterised in that：The annular bead（6）Section is trapezoidal.
8. elastic packing butterfly valve according to claim 1 or claim 7, it is characterised in that：The annular bead（6）Periphery with it is outer
Annular groove（7）Periphery be in contact, annular bead（6）Inner circumferential and external annular groove（7）Inner circumferential between be equipped with gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110407.3U CN208010945U (en) | 2018-01-23 | 2018-01-23 | Elastic packing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820110407.3U CN208010945U (en) | 2018-01-23 | 2018-01-23 | Elastic packing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208010945U true CN208010945U (en) | 2018-10-26 |
Family
ID=63883198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820110407.3U Active CN208010945U (en) | 2018-01-23 | 2018-01-23 | Elastic packing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208010945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953355A (en) * | 2019-12-25 | 2020-04-03 | 凯喜姆阀门有限公司 | Metal sealing high-performance butterfly valve |
-
2018
- 2018-01-23 CN CN201820110407.3U patent/CN208010945U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953355A (en) * | 2019-12-25 | 2020-04-03 | 凯喜姆阀门有限公司 | Metal sealing high-performance butterfly valve |
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| GR01 | Patent grant |