CN206386494U - A kind of elastic compensating sealed butterfly valve - Google Patents
A kind of elastic compensating sealed butterfly valve Download PDFInfo
- Publication number
- CN206386494U CN206386494U CN201720008921.1U CN201720008921U CN206386494U CN 206386494 U CN206386494 U CN 206386494U CN 201720008921 U CN201720008921 U CN 201720008921U CN 206386494 U CN206386494 U CN 206386494U
- Authority
- CN
- China
- Prior art keywords
- sealing
- ring
- valve body
- sealing ring
- butterfly 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 proposes a kind of elastic compensating sealed butterfly valve, including two ends to logical valve body, rotatable valve rod is provided with the valve body, and its one end is stretched out to outside valve body, valve rod in valve body is provided with butterfly plate, provided with the sealing surface with butterfly plate fitted seal in the valve body, the butterfly plate is rounded, the butterfly plate outer rim is provided with sealing ring, when the butterfly plate is closed, sealing ring contacts with sealing surface and ring spring is provided with realization sealing, the sealing ring, and the ring spring provides pretension force compensating for sealing ring when butterfly plate is closed and improves sealing.The utility model in sealing ring by setting ring spring, butterfly plate is set to provide pretension force compensating when closing for sealing ring, sealing ring is set to be close to valve body sealing surface, avoid simultaneously and sealing ring and sealing surface wear leakage caused by crush seal ring are interference fitted when butterfly plate is closed, good seal performance, self-compensating scope is big, and service life is long, with reference to double eccentric designs, valve opening moment of torsion is small.
Description
Technical field
The utility model is related to valve field, and in particular to a kind of elastic compensating sealed butterfly valve.
Background technology
When in use, phase mutual friction causes abrasion to butterfly valve between it can cause sealing surface during constantly switching, and makes
When being sealed with conventional seals circle by natural resiliency, under long-term Reciprocative switch, sealing ring elasticity can be caused gradually to lose, caused
Sealing effectiveness, which is deteriorated, triggers leakage.
Utility model content
Based on above mentioned problem, the utility model purpose is to provide a kind of sealing ring with automatic compensation function, sealing effect
It is really good, it is wear-resistant, open the small elastic compensating sealed butterfly valve of moment of torsion.
For problem above, there is provided following technical scheme：A kind of elastic compensating sealed butterfly valve, including two ends are to logical valve
Rotatable valve rod is provided with body, the valve body, and its one end, to stretching outside valve body, the valve rod in valve body is provided with butterfly
Provided with the sealing surface with butterfly plate fitted seal in plate, the valve body, the butterfly plate is rounded, and the butterfly plate outer rim is provided with sealing
Ring, when the butterfly plate is closed, sealing ring contacts in realization sealing, the sealing ring with sealing surface and is provided with ring spring, the ring
Shape spring provides pretension force compensating for sealing ring when butterfly plate is closed and improves sealing.
In said structure, ring spring is that traditional cylindrical spring joins end to end the ring spring of composition, and its own has one
Fixed rigidity of support, dilatancy and shrinkage, by the way that ring spring is placed in into sealing ring, makes ring spring support sealing ring real
Now seal, so as to improve sealing effectiveness.
The utility model is further arranged to, positioning of the edge provided with radially direction evagination of the butterfly plate side
Portion, the butterfly plate is provided with removable trim ring relative to the end face of location division side, and the sealing ring passes through trim ring and positioning
Portion is fixed on butterfly plate.
In said structure, trim ring design can facilitate the replacing when installation or later maintenance of sealing ring.
The utility model is further arranged to, and the sealing ring is provided with annular groove towards one end end face of location division,
The ring spring is placed in sealing ring by annular groove.
In said structure, annular groove is used to accommodate ring spring.
The utility model is further arranged to, and one side of the butterfly plate provided with location division is fixed with valve rod, is made in valve rod
Between the heart axis central axis vertical with butterfly plate radial direction, the axial direction towards valve body staggers to form the first bias.
In said structure, first heart design makes butterfly plate upper and lower side no longer turn into revolution axle center, disperses, alleviates on butterfly plate
Excessive compression between lower end and valve body sealing surface.
The utility model is further arranged to, the central axis of the valve rod central shaft vertical with valve body radial direction
Line, both staggers to form the second bias along the axial direction perpendicular to valve body.
In said structure, the second eccentric design enable valve be unlocked after butterfly plate immediately depart from the sealing surface of valve body, significantly
Degree ground eliminates excessive compression unnecessary between butterfly plate and sealing surface, scrapes phenomenon, alleviates unlatching and hinders away from reducing mill
Damage, improve life of valve.
The utility model is further arranged to, and the sealing ring is polytetrafluoroethylene (PTFE) material.
In said structure, polytetrafluoroethylene (PTFE) has good corrosion resistance, and its self-lubricity can be greatly reduced and sealing surface
Friction.
The utility model is further arranged to, and is bolted between the trim ring and butterfly plate.
In said structure, bolt fixes safe and reliable, convenient disassembly.
The beneficial effects of the utility model：By setting ring spring in sealing ring, it is sealing ring when closing to make butterfly plate
Pretension force compensating is provided, sealing ring is close to valve body sealing surface, while avoiding because being interference fitted crush seal when butterfly plate is closed
Ring causes sealing ring and sealing surface wear to leak, and good seal performance, self-compensating scope is big, and service life is long, with reference to double bias
Design, valve opening moment of torsion is small.
Brief description of the drawings
Fig. 1 is complete section structural representation of the present utility model；
Fig. 2 is the utility model Fig. 1 A portions mplifying structure schematic diagram；
Fig. 3 is right side structural representation of the present utility model.
Label implication in figure：10- valve bodies；11- valve rods；12- sealing surfaces；20- butterfly plates；21- sealing rings；211- annulars are recessed
Groove；22- ring springs；23- location divisions；24- trim rings；25- bolts；A- first is eccentric；B- second is eccentric.
Embodiment
With reference to the accompanying drawings and examples, embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to scope of the present utility model.
Referring to figs. 1 to Fig. 3, a kind of elastic compensating sealed butterfly valve as shown in Figure 1 to Figure 3, including two ends are to logical valve body
10, it is provided with rotatable valve rod 11 in the valve body 10, and its one end is to stretching out outside valve body 10, the valve rod in valve body 10
11 are provided with provided with the sealing surface 12 with the fitted seal of butterfly plate 20 in butterfly plate 20, the valve body 10, and the butterfly plate 20 is rounded, institute
The outer rim of butterfly plate 20 is stated provided with sealing ring 21, when the butterfly plate 20 is closed, sealing ring 21 contacts realization sealing with sealing surface 12, described
Ring spring 22 is provided with sealing ring 21, the ring spring 22 provides pretension force compensating when butterfly plate 20 is closed for sealing ring 21
Improve sealing.
In said structure, ring spring 22 is that traditional cylindrical spring joins end to end the ring spring of composition, and its own has
Certain rigidity of support, dilatancy and shrinkage, by the way that ring spring 22 is placed in into sealing ring 21, supports ring spring 22
Sealing ring 21 realizes sealing, so as to improve sealing effectiveness.
In the present embodiment, location division 23 of the edge provided with radially direction evagination of the side of butterfly plate 20, the butterfly
Plate 20 is provided with removable trim ring 24 relative to the end face of the side of location division 23, and the sealing ring 21 passes through trim ring 24 and positioning
Portion 23 is fixed on butterfly plate 20.
In said structure, trim ring 24 designs replacing when can facilitate the installation or later maintenance of sealing ring 21.
In the present embodiment, the sealing ring 21 is provided with annular groove 211, the ring towards one end end face of location division 23
Shape spring 22 is placed in sealing ring 21 by annular groove 211.
In said structure, annular groove 211 is used to accommodate ring spring 22.
In the present embodiment, one side of the butterfly plate 20 provided with location division 23 is fixed with valve rod 11, makes the central shaft of valve rod 11
Between the line central axis vertical with the radial direction of butterfly plate 20, the axial direction towards valve body staggers to form the first bias a.
In said structure, first heart a design makes the upper and lower side of butterfly plate 20 no longer turn into revolution axle center, disperses, alleviates butterfly
Excessive compression between the sealing surface 12 of the upper and lower side of plate 20 and valve body 10.
In the present embodiment, the central axis of the valve rod 11 central axis vertical with the radial direction of valve body 10, both
Stagger to form the second bias b along the axial direction perpendicular to valve body.
In said structure, the second bias b design enable valve be unlocked after butterfly plate 20 immediately depart from the sealing of valve body 10
Face 12, significantly eliminates excessive compression unnecessary between butterfly plate 20 and sealing surface 12, scrapes phenomenon, alleviates unlatching resistance
Away from reducing abrasion, improve life of valve.
In the present embodiment, the sealing ring 21 is polytetrafluoroethylene (PTFE) material.
In said structure, polytetrafluoroethylene (PTFE) has good corrosion resistance, and its self-lubricity can be greatly reduced and sealing surface
Friction.
In the present embodiment, fixed between the trim ring 24 and butterfly plate 20 by bolt 25.
In said structure, bolt 25 fixes safe and reliable, convenient disassembly.
The beneficial effects of the utility model：By setting ring spring 22 in sealing ring 21, it is when closing butterfly plate 20
Sealing ring 21 provides pretension force compensating, sealing ring 21 is close to the sealing surface 12 of valve body 10, while avoiding because butterfly plate 20 is closed
When interference fit crush seal ring 21 cause sealing ring 21 and the wear and leakage of sealing surface 12, good seal performance, self-compensating scope
Greatly, service life is long, and with reference to double eccentric designs, valve opening moment of torsion is small.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvement and modification, above-mentioned vacation can also be made
If these improvement and modification also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of elastic compensating sealed butterfly valve, including two ends are to logical valve body, the valve body is interior to be provided with rotatable valve rod, and its
One end is to stretching outside valve body, and the valve rod in valve body, which is provided with dish plate, the valve body, to be provided with and dish plate fitted seal
Sealing, it is characterised in that：The dish plate is rounded, and the dish plate outer rim is provided with sealing ring, when the dish plate is closed, sealing ring
Contacted with sealing and ring spring is provided with realization sealing, the sealing ring, the ring spring is sealing when dish plate is closed
Ring provides pretension force compensating and improves sealing.
2. a kind of elastic compensating sealed butterfly valve according to claim 1, it is characterised in that：The edge of the dish plate side is set
There is the location division of radially direction evagination, the dish plate is provided with removable trim ring relative to the end face of location division side,
The sealing ring is fixed on dish plate by trim ring and location division.
3. a kind of elastic compensating sealed butterfly valve according to claim 1 or 2, it is characterised in that：The sealing ring direction is fixed
One end end face in position portion is provided with annular groove, and the ring spring is placed in sealing ring by annular groove.
4. a kind of elastic compensating sealed butterfly valve according to claim 1 or 2, it is characterised in that：The dish plate is provided with positioning
The one side in portion is fixed with valve rod, is made between the central axis of the valve rod central axis vertical with dish plate radial direction, towards valve body
Axial direction staggers to form the first bias.
5. a kind of elastic compensating sealed butterfly valve according to claim 4, it is characterised in that：The central axis of the valve rod with
The vertical central axis of valve body radial direction, both staggers to form the second bias along the axial direction perpendicular to valve body.
6. a kind of elastic compensating sealed butterfly valve according to claim 1, it is characterised in that：The sealing ring is polytetrafluoroethyl-ne
Alkene material.
7. a kind of elastic compensating sealed butterfly valve according to claim 2, it is characterised in that：Lead between trim ring and the dish plate
Bolt is crossed to fix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720008921.1U CN206386494U (en) | 2017-01-05 | 2017-01-05 | A kind of elastic compensating sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720008921.1U CN206386494U (en) | 2017-01-05 | 2017-01-05 | A kind of elastic compensating sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206386494U true CN206386494U (en) | 2017-08-08 |
Family
ID=59492165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720008921.1U Expired - Fee Related CN206386494U (en) | 2017-01-05 | 2017-01-05 | A kind of elastic compensating sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206386494U (en) |
-
2017
- 2017-01-05 CN CN201720008921.1U patent/CN206386494U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170808 Termination date: 20190105 |