CN2262140Y - Elastic sealed butterfly valve - Google Patents
Elastic sealed butterfly valve Download PDFInfo
- Publication number
- CN2262140Y CN2262140Y CN 94210538 CN94210538U CN2262140Y CN 2262140 Y CN2262140 Y CN 2262140Y CN 94210538 CN94210538 CN 94210538 CN 94210538 U CN94210538 U CN 94210538U CN 2262140 Y CN2262140 Y CN 2262140Y
- Authority
- CN
- China
- Prior art keywords
- valve
- seat
- elastic
- flap
- groove
- 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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- Lift Valve (AREA)
Abstract
The utility model relates to an elastic sealed butterfly valve, which belongs to a butterfly device which enhances a non-metal sealed performance. A valve seat (B) and a valve flap (C) are changed into an elastic valve seat (4) and an elastic valve flap (9) to form four kinds of different structure fashions. The utility model is characterized in that the utility model changes a traditional sealed mode, the pressure of a medium is considered as a mechanism of a sealed energy source, the pressure of a medium is higher, a sealed performance is better, and the utility model overcomes the defects of micro leakage, inner leakage, outer leakage, low pressure bearing, big switch moment, etc. of an original butterfly valve. The utility model enhances a pressure resisting change 25MPa. The utility model has the advantages of simple structure and easy realization.
Description
The utility model relates to a kind of butterfly valve apparatus of automatic adjusting sealability, and particularly it is the device of the sealing energy with the pressure medium.
Existing butterfly valve technology, it is low that it bears pressure, and disadvantages such as leakiness life-span weak point are for addressing this problem all difficult simple above-mentioned disadvantage of improving of model utility 90207537 and patent of invention 91210211.
The purpose of this utility model provides a kind of butterfly valve apparatus that improves sealability, and it can effectively overcome above-mentioned disadvantage, improves and improves sealability.
The purpose of this utility model is achieved in that after it changes former valve seat or flap into elastic seat or Elastic valve clack forms four kinds of groove structures with valve body or flap.This groove is communicated with valve pocket by be drilled with port hole on valve body, flap or valve rod, promotes elastic seat immediately or Elastic valve clack compresses sealing relatively after pressure medium enters groove from port hole, and its pressure medium is healed high sealing performance better.
The utility model, is realized so structure is simple especially easily because only need can reach automatic sealing effect to the pressure medium of valve pocket in port hole introducing groove.
Concrete structure of the present utility model is provided by following examples and accompanying drawing thereof.
Fig. 1 is structural drawing and working principle and the feature that the utility model proposes:
The major part of this device is to increase newly on the basis of valve rod (8), valve seat (9), flap (10), valve body (11) at former butterfly valve and improved following part: flap pressing plate (1), Elastic valve clack (2), disc holder (3), elastic seat (4) (4
2) and (4
3), one-way valve (5) is formed four kinds of multi-form grooves (6) (6
2) (6
3) and (6
4), also be drilled with multi-form port hole (7) (7
3) and (7
4) constructional device, its working principle is from port hole (7) or (7 pressure medium
3) or (7
4) introducing groove (6) or (6
2) or (6
3) or (6
4), promote Elastic valve clack (2) or elastic seat (4) (4
2) and (4
3) compress sealing.
Fig. 1-1 is a Jiong shape elastic seat structural drawing:
This device is made up of valve rod (8) flap (10) elastic seat (4) and valve body (11), at valve body (11) the internal diameter elastic seat (4) of packing into, forms groove (6) therebetween.It is characterized in that: the sidetracking at valve rod (8) has crossing port hole (7) to be communicated with valve pocket and groove (6), after pressure medium is introduced groove (6) by port hole (7), promotes elastic seat (4) immediately and compresses sealing relatively to flap (10).
Fig. 1-2 is a T shape elastic seat structural drawing:
This device is T shape elastic seat (4
2) valve body of packing into (11) internal diameter with disc holder (3) dress admittedly.It is characterized in that tee-section elastic seat (4
3) a side external diameter less than the maximum inner diameter of valve body (11), both assembly straight-through groove (6
2), and pressure medium directly promotes elastic seat (4
2) compress sealing to flap (10).
Fig. 1-3 is a M shape elastic seat structural drawing.
This device is M shape elastic seat (4
3) in the valve body of packing into (11) the internal diameter groove, at elastic seat (4
3) external diameter form groove (6
3), it is characterized in that at elastic seat (4
3) both sides valve body (11) on respectively be drilled with port hole (7
3) connection groove (6
3), and at port hole (7
3) in one-way valve (5) is housed.If at elastic seat (4
3) either side bore port hole (7
3) (5) with regard to not adorning one-way valve, and can unidirectional control use.
Fig. 1-4 W shape Elastic valve clack structural drawing:
This device is that Elastic valve clack (2) is packed in the outer diameter groove of flap (10), in that the groove dress is solid partially, forms elastic sealing device with valve seat (9) with flap pressing plate (1).
It is characterized in that between flap (10) and Elastic valve clack (2) assembling, forming groove (6
4), and port hole (7 is arranged at a sidetracking of flap (10)
4), this port hole (7
4) valve pocket and groove (6
4) be communicated with.
Above-mentioned Fig. 1-2, Fig. 1-3, Fig. 1-4 three kind of constructional device, its common trait is the center line and the elastic seat (4 of valve rod (8)
2) (4
3), the sealing surface of valve seat (9) and flap (10) has an offset distance.
Claims (6)
1. elastic packing butterfly valve, comprise valve rod (8), valve seat, flap, valve body (11) is characterized in that: flap (10) is placed in the valve pocket with valve rod (8) fixed installation, and flap (10) cooperates with valve seat, valve seat is a shape elastic seat (4), elastic seat (4) is contained on valve body (11) internal diameter, forms groove (6) therebetween, and a sidetracking of valve rod (8) has crossing passage (7) to be communicated with valve pocket and groove (6).
2. butterfly valve according to claim 1 is characterized in that valve seat is a T shape elastic seat 4
2), be fixed on valve body (11) internal diameter tee-section elastic seat (4 with disc holder (3)
2) a side external diameter less than the maximum inner diameter of valve body (11), both assembly straight-through groove (6
2).
3. butterfly valve according to claim 1 is characterized in that valve seat is a M shape elastic seat (4
3), this valve seat (4
3) in the valve body of packing into (11) the internal diameter groove, at elastic seat (4
3) external diameter form groove (6
3), at elastic seat (4
3) both sides valve body (11) on respectively be drilled with port hole (7
3) connection groove (6
3), and at port hole (7
3) in one-way valve (5) is housed.
4. butterfly valve according to claim 3 is characterized in that elastic seat (4
3) either side drill through (7
3), need not adorn one-way valve (5) this moment.
5. butterfly valve according to claim 1, it is characterized in that the Elastic valve clack (2) of packing in the outer diameter groove of flap (10), solid by flap pressing plate (1) dress, form elastic sealing device with valve seat (9), form groove (6 between flap (10) and Elastic valve clack (2) assembling
4), at a sidetracking of flap (10) port hole (7 is arranged
4), this port hole (7
4) valve pocket and groove (6
4) be communicated with.
6. according to claim 2,3,5 described butterfly valves, it is characterized in that the center line of valve rod (8) and the sealing surface of valve seat (9) and flap (10) have an offset distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210538 CN2262140Y (en) | 1994-05-08 | 1994-05-08 | Elastic sealed butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94210538 CN2262140Y (en) | 1994-05-08 | 1994-05-08 | Elastic sealed butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2262140Y true CN2262140Y (en) | 1997-09-10 |
Family
ID=33827922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94210538 Expired - Fee Related CN2262140Y (en) | 1994-05-08 | 1994-05-08 | Elastic sealed butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2262140Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808957A (en) * | 2012-08-20 | 2012-12-05 | 中阀科技(长沙)阀门有限公司 | Butterfly valve |
-
1994
- 1994-05-08 CN CN 94210538 patent/CN2262140Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808957A (en) * | 2012-08-20 | 2012-12-05 | 中阀科技(长沙)阀门有限公司 | Butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |