CN218845143U - Butterfly valve with multiple sealing structure - Google Patents
Butterfly valve with multiple sealing structure Download PDFInfo
- Publication number
- CN218845143U CN218845143U CN202221782930.3U CN202221782930U CN218845143U CN 218845143 U CN218845143 U CN 218845143U CN 202221782930 U CN202221782930 U CN 202221782930U CN 218845143 U CN218845143 U CN 218845143U
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- China
- Prior art keywords
- sealing
- valve
- plate
- butterfly valve
- jacking
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- 238000007789 sealing Methods 0.000 title claims abstract description 86
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000032683 aging Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000007774 longterm Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Lift Valve (AREA)
Abstract
The utility model provides a simple structure, sealed effectual butterfly valve with multiple seal structure, including the butterfly valve body, the butterfly valve body is equipped with the chamber that flows, the intracavity that flows is equipped with the disk seat, be equipped with the valve plate that is used for cutting off rivers on the disk seat, be equipped with the valve rod that is used for opening and close the valve plate on the butterfly valve body, be equipped with the closing plate on the valve plate, it is equipped with sealed passageway to wind on the closing plate, be equipped with the sealing washer in the sealed passageway, be equipped with on the closing plate and be used for the tight device in the top on the disk seat in sealing washer top when the closing plate seals on the disk seat.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to butterfly valve with multiple seal structure.
Background
A butterfly valve, also called a flap valve, is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline media, namely a valve which is opened and closed by rotating a closing member (a valve clack or a butterfly plate) around a valve shaft by taking a disc as a closing member.
At present, some butterfly valves that exist in the market use the back for a long time, and the sealed ageing can appear between butterfly valve body and the butterfly plate, leads to the phenomenon that the butterfly valve also can appear revealing even at the closed condition.
SUMMERY OF THE UTILITY MODEL
Therefore, to foretell problem, the utility model provides a simple structure, sealed effectual butterfly valve with multiple seal structure.
In order to achieve the above object, the technical scheme of the utility model a butterfly valve with multiple seal structure is provided, including the butterfly valve body, the butterfly valve body is equipped with the chamber that flows, the intracavity that flows is equipped with the disk seat, be equipped with the valve plate that is used for cutting off rivers on the disk seat, be equipped with the valve rod that is used for opening and close the valve plate on the butterfly valve body, be equipped with the closing plate on the valve plate, it is equipped with sealed passageway to wind around on the closing plate, be equipped with the sealing washer in the sealed passageway, be equipped with on the closing plate and be used for the tight device in top on the disk seat in sealing washer top when the closing plate seals on the disk seat.
The further improvement is that: the jacking device comprises a plurality of jacking blocks, the jacking blocks are slidably arranged in the sealing channel, jacking pieces are arranged between the jacking blocks and the sealing rings, and pushing devices used for pushing the jacking pieces to jack the sealing rings on the valve seats are arranged on the sealing plates.
The further improvement is that: the push device comprises a push rod, a sliding channel communicated with the sealing channel and a sliding channel penetrating through the sealing plate are formed in the sealing plate, the push rod penetrates through the sliding channel in a sliding mode, an inclined plane is formed in the push rod, the top pressing block is located at the contact end of the push rod and provided with a spherical surface, and a return device for returning the push rod when the butterfly valve is opened by rotating the sealing plate is arranged in the sealing plate.
The further improvement is that: the jacking piece is a spring, one end of the spring is fixedly connected with the sealing ring, and the other end of the spring is fixedly connected with the jacking block.
The further improvement is that: the return device comprises a return spring, one end of the return spring is connected with the push rod, and the other end of the return spring is connected with the inner wall of the sliding channel.
The further improvement is that: the sealing device is characterized by further comprising a rubber sealing sleeve, wherein the sealing plate is located at the front end of the sealing ring and provided with a sealing protrusion, the rubber sealing sleeve is sleeved on the sealing protrusion, and the sealing plate is provided with a fixing device for fixing the rubber sealing sleeve on the sealing plate.
The further improvement is that: the fixing device is as follows: and (5) fixing the bolt.
The further improvement is that: and a self-cleaning ceramic layer is arranged on the contact surface of the valve seat and the valve plate.
The utility model has the advantages and the beneficial effects that:
simple structure and good sealing effect. Can improve the sealed effect of butterfly valve through sealing washer and seal cover on closing plate, the closing plate, can still be effectual sealing after the valve plate is ageing moreover, avoided the ageing back of valve plate to leak.
Drawings
Fig. 1 is a schematic view of a butterfly valve with a multiple sealing structure according to an embodiment of the present invention.
Fig. 2 is the utility model discloses the structure sketch map is cut open to disk seat and valve plate.
Fig. 3 is an enlarged schematic structural diagram of embodiment a of the present invention.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1-3, a butterfly valve with multiple sealing structures includes a butterfly valve body 1, the butterfly valve body 1 is provided with a flow chamber, a valve seat 4 is disposed in the flow chamber, a valve plate 5 for cutting off water flow is disposed on the valve seat 4, a valve rod 6 for opening and closing the valve plate 5 is disposed on the butterfly valve body 1, a sealing plate 3 is disposed on the valve plate 5 through a bolt lock, a sealing passage 7 is disposed on the sealing plate 3 in an encircling manner, a sealing ring 8 is disposed in the sealing passage 7, a sealing block 8 is disposed on the sealing plate 3, the sealing ring 8 abuts against a plurality of abutting blocks 10 on the valve seat 4 when the sealing plate 3 is sealed on the valve seat 4, the abutting blocks 10 are slidably disposed in the sealing passage 7, a spring 9 is disposed between the abutting blocks 10 and the sealing ring 8, one end of the spring 9 is fixedly connected with the sealing ring 8, the other end of the spring 9 is fixedly connected with the abutting blocks 10, a pushing device for pushing the spring to abut against the sealing ring 8 is disposed on the valve seat 4 is disposed on the sealing plate 3, the pushing device includes a pushing rod 14, a sliding passage 13 communicated with the sealing plate 7 and a pushing rod 14, and a pushing rod 14 is disposed on the sliding surface of the sliding block 14, the pushing rod 14, and a return rod 14 is disposed on the pushing rod 14 for opening the sliding surface of the sliding rod 9, and a return rod 14, the pushing rod 14, and a return rod 14 for returning the pushing rod is disposed on the pushing rod for returning the sliding rod. Wherein, can further seal disk seat 4 through closing plate 3, realize disk seat 4's double seal, avoid valve plate 5 ageing after long-term the use or seal pair wearing and tearing and leak in the long-term use. When the valve plate 5 is closed, water flow impacts on the sealing plate 3, the water flow is perpendicular to the valve plate 5, the water flow impacts to enter the sliding channel 13, the pushing rod 14 is pushed to slide, the pushing rod 14 and the pressing block 10 slide in the sealing channel 7, the pressing block 10 compresses the spring 9, the spring 9 abuts against the sealing ring 8 to enable the sealing ring to be tensioned on the valve seat 4, therefore, the sealing ring 8 is enabled to be better sealed on the valve seat 4, the sealing effect is further improved, and at the moment, the return spring 9 is compressed. Thereby further avoiding water leakage after the valve plate 5 is aged. When the valve plate 5 is opened, water flow does not impact the sliding channel 13, the return spring 9 is reset at the moment, the push rod 14 is pushed to return, and the spring 9 pushes the pressing block 10 to return at the moment, so that the sealing ring 8 is not tightly pressed on the valve seat 4.
In order to further improve the leakproofness, prevent to leak after valve plate 5 and the ageing of sealing washer 8, still include rubber seal cover 15, closing plate 3 is located 8 front ends of sealing washer and is equipped with sealed arch, rubber seal cover 15 covers is located sealed arch, be equipped with on the closing plate 3 and be used for fixing the fixing bolt 16 on closing plate 3 with rubber seal cover 15.
In order to prevent impurities in the fluid passage from attaching to the valve seat 4 and causing the valve plate 5 to rub against the valve seat 4 when the valve plate 5 is closed, so that the sealing pair of the valve plate 5 is abraded and the sealing performance of the valve plate 5 is affected, the contact surface of the valve seat 4 and the valve plate 5 is provided with a self-cleaning ceramic layer 41.
Having shown and described the basic principles and essential features of the invention and its advantages, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but is susceptible to various changes and modifications without departing from the spirit and scope of the invention, all of which are intended to be covered by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a butterfly valve with multiple seal structure, includes the butterfly valve body, the butterfly valve body is equipped with the chamber of flowing, it is equipped with the disk seat to flow the intracavity, be equipped with the valve plate that is used for cutting off rivers on the disk seat, be equipped with the valve rod that is used for opening and close the valve plate on the butterfly valve body, its characterized in that: the sealing device is characterized in that a sealing plate is arranged on the valve plate, a sealing channel is arranged on the sealing plate in a surrounding mode, a sealing ring is arranged in the sealing channel, and a jacking device used for jacking the sealing ring on the valve seat when the sealing plate is sealed on the valve seat is arranged on the sealing plate.
2. The butterfly valve with multiple seal structures of claim 1, wherein: the jacking device comprises a plurality of jacking blocks, the jacking blocks are slidably arranged in the sealing channel, jacking pieces are arranged between the jacking blocks and the sealing rings, and pushing devices used for pushing the jacking pieces to jack the sealing rings on the valve seats are arranged on the sealing plates.
3. The butterfly valve with multiple seal structures of claim 2, wherein: the pushing device comprises a pushing rod, a sliding channel communicated with the sealing channel is formed in the sealing plate, the sliding channel penetrates through the sealing plate, the pushing rod penetrates through the sliding channel in a sliding mode, an inclined plane is formed in the pushing rod, the top pressing block is located at the contact end with the pushing rod and is provided with a spherical surface, and a return device used for returning the pushing rod when the butterfly valve is opened by rotating the sealing plate is arranged in the sealing plate.
4. The butterfly valve with multiple seal structures of claim 2, wherein: the jacking piece is a spring, one end of the spring is fixedly connected with the sealing ring, and the other end of the spring is fixedly connected with the jacking block.
5. A butterfly valve with multiple seal structures according to claim 3, wherein: the return device comprises a return spring, one end of the return spring is connected with the push rod, and the other end of the return spring is connected with the inner wall of the sliding channel.
6. The butterfly valve with multiple seal structures of claim 1, wherein: the sealing device is characterized by further comprising a rubber sealing sleeve, wherein the sealing plate is located at the front end of the sealing ring and provided with a sealing protrusion, the rubber sealing sleeve is sleeved on the sealing protrusion, and the sealing plate is provided with a fixing device for fixing the rubber sealing sleeve on the sealing plate.
7. The butterfly valve with multiple seal structures of claim 6, wherein: the fixing device is as follows: and (5) fixing the bolt.
8. The butterfly valve with multiple seal structures of claim 1, wherein: and a self-cleaning ceramic layer is arranged on the contact surface of the valve seat and the valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221782930.3U CN218845143U (en) | 2022-07-11 | 2022-07-11 | Butterfly valve with multiple sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221782930.3U CN218845143U (en) | 2022-07-11 | 2022-07-11 | Butterfly valve with multiple sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218845143U true CN218845143U (en) | 2023-04-11 |
Family
ID=87284009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221782930.3U Active CN218845143U (en) | 2022-07-11 | 2022-07-11 | Butterfly valve with multiple sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218845143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877740A (en) * | 2023-07-05 | 2023-10-13 | 航大阀门集团有限公司 | Flange type silencing check valve |
-
2022
- 2022-07-11 CN CN202221782930.3U patent/CN218845143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116877740A (en) * | 2023-07-05 | 2023-10-13 | 航大阀门集团有限公司 | Flange type silencing check valve |
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| GR01 | Patent grant |