CN212959901U - Double-eccentric soft sealing butterfly valve - Google Patents
Double-eccentric soft sealing butterfly valve Download PDFInfo
- Publication number
- CN212959901U CN212959901U CN202021769791.1U CN202021769791U CN212959901U CN 212959901 U CN212959901 U CN 212959901U CN 202021769791 U CN202021769791 U CN 202021769791U CN 212959901 U CN212959901 U CN 212959901U
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- China
- Prior art keywords
- butterfly plate
- butterfly
- sealing washer
- valve rod
- valve
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 76
- 238000010276 construction Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 7
- 238000009434 installation Methods 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
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Abstract
The utility model provides a soft sealed butterfly valve of two eccentrics, including valve body, butterfly plate sealing washer, fixed pin, last valve rod, lower valve rod, sealing washer, spring washer, install the butterfly plate in the valve body, both sides are fixed with valve rod, lower valve rod respectively through the fixed pin about the butterfly plate, the utility model discloses a change the structure of current butterfly valve sealing washer, the utility model discloses a section shape of butterfly plate sealing washer is for taking tail arrow type formula, and the butterfly plate sealing washer is installed on the butterfly plate, together with butterfly plate, sealing washer clamp plate, a set of screw, a set of spring washer, a set of fixed pin, upper and lower valve rod, constitutes the butterfly plate subassembly, and when clockwise rotation valve rod, the valve rod drives the butterfly plate subassembly, and the butterfly plate sealing washer sticiss on the disk seat, plays the medium and cuts the effect. The utility model discloses can vertical or horizontal installation on the pipeline, have the two way seal function, use two eccentric soft seal butterfly valves can play the effect of practicing thrift the cost, saving space.
Description
Technical Field
The utility model relates to the technical field of valves, in particular to two eccentric soft seal butterfly valves.
Background
The butterfly valve is a regulating valve with simple structure, and can be used for the on-off control of low-pressure pipeline medium, i.e. a valve whose closing member is a disk and can be rotated around the valve shaft to open and close, and can be used for controlling the flow of various fluids of air, water, steam, various corrosive media, slurry, oil product, liquid metal and radioactive medium, etc. and mainly playing the role of cutting off and throttling on the pipeline. At present, most butterfly valve structures produced in China are multi-level three-eccentric butterfly valves, the structure is complex, the multi-level sealing ring structure is troublesome to process, the sealing ring is easy to wear, and the service life is short; the center line butterfly valve is not provided with bidirectional sealing, the installation direction is limited, and the switching speed of the butterfly valve is slow; therefore, a double-eccentric butterfly valve appears, and the existing double-eccentric butterfly valve is a multifunctional and multipurpose valve which can cut off and adjust a medium. The butterfly plate sealing ring of present adopts semi-circular structure, opens and close the moment big, and the sealing ring drops easily or calculates badly, and long-term use can influence and lead to the valve leakproofness variation, influences the life of valve.
Disclosure of Invention
According to the technical problem above, the utility model provides a sealed effect is better, two eccentric soft sealing butterfly valves that sealing performance is more stable.
The utility model provides a following technical scheme: the utility model provides a two off-centre soft seal butterfly valves, its characterized in that includes valve body, butterfly plate sealing washer, fixed pin, goes up valve rod, lower valve rod, sealing washer clamp plate, spring washer, install the butterfly plate in the valve body, both sides are fixed with valve rod, lower valve rod respectively through the fixed pin about the butterfly plate, butterfly plate outside parcel has the butterfly plate sealing washer, the section of butterfly plate sealing washer is tail arrow type shape, butterfly plate sealing washer upside is fixed with the sealing washer clamp plate through screw and spring washer.
The butterfly plate assembly is composed of a butterfly plate sealing ring, a butterfly plate, a sealing ring pressing plate, a group of screws, a group of spring washers, a group of fixing pins and an upper valve rod and a lower valve rod, and the butterfly plate assembly performs 90-degree rotary motion.
The butterfly plate sealing ring is composed of a sealing element, a fixing element and a clamping and buckling element, the sealing element, the fixing element and the clamping and buckling element are of an integrated structure, the clamping and buckling element is connected through the fixing element and is of a straight-line structure, the section of the fixing element is of an arrow structure, and the section of the sealing element is of an arc structure.
The upper valve rod penetrates through the valve body and is connected with the butterfly plate, and the lower valve rod is fixed in the valve body and is of a rotatable structure with the valve body.
And the inner side of the sealing ring pressing plate and the outer side of the butterfly plate are provided with sealing ring pressing grooves, and the sections of the sealing ring pressing grooves are in a half-section type with tail arrows.
The utility model has the advantages that: the utility model discloses a structure of current butterfly valve sealing washer has been changed, the utility model discloses a section shape of butterfly plate sealing washer is for taking tail arrow point type, and the butterfly plate sealing washer is installed on the butterfly plate, together with butterfly plate, sealing washer clamp plate, a set of screw, a set of spring washer, a set of fixed pin, upper and lower valve rod, constitutes the butterfly plate subassembly, and when clockwise rotation valve rod, the valve rod drives the butterfly plate subassembly, and the butterfly plate sealing washer sticiss on the disk seat, plays and cuts the medium effect, even long-time the utility model discloses a damage phenomenon that drops can not take place yet to the sealing washer, has ensured the utility model discloses a leakproofness has prolonged in the intangible the utility model discloses a life. The utility model discloses can vertical or horizontal installation on the pipeline, have the two way seal function, use two eccentric soft seal butterfly valves can play the effect of practicing thrift the cost, saving space. The utility model provides a double eccentric soft sealing butterfly valve which can be vertically or horizontally arranged on a pipeline; through the motion of rotatory valve rod, realize the switch-on of valve pipeline, cut or adjust three kinds of functions, have the two-way sealing function simultaneously, consequently improved work efficiency and stable performance degree.
The utility model discloses a sealing washer clamp plate, screw, spring washer press the butterfly plate sealing washer between sealing washer clamp plate and butterfly plate, have improved the fixed stability of sealing washer, have improved the leakproofness of sealing washer.
Drawings
Fig. 1 is a schematic view of the closed state structure of the double eccentric soft seal butterfly valve of the present invention.
Fig. 2 shows the position of the horizontal installation of the double eccentric soft seal butterfly valve and the pipeline of the present invention.
Fig. 3 is the position schematic diagram of the horizontal installation of the double eccentric soft seal butterfly valve and the pipeline of the utility model.
As shown in the figure: the butterfly valve comprises a valve body 1, a butterfly plate sealing ring 2, a butterfly plate 3, a sealing ring pressing plate 4, a screw 5, a spring washer 6, an upper valve rod 7, a lower valve rod 8 and a fixing pin 9.
Detailed Description
Example 1
The utility model provides a sealed effect is better, two eccentric soft seal butterfly valves that sealing performance is more stable. Including valve body 1, butterfly plate 3, butterfly plate sealing washer 2, fixed pin 9, go up valve rod 7, lower valve rod 8, sealing washer clamp plate 4, spring washer 6, install butterfly plate 3 in the valve body 1, both sides are fixed with valve rod 7, lower valve rod 8 respectively through fixed pin 9 about the butterfly plate 3, go up valve rod 7, lower valve rod 8 and pass valve body 1 and butterfly plate 3 and connect, 3 outside parcels of butterfly plate have butterfly plate sealing washer 2, 2 sections of butterfly plate sealing washer are for taking tail arrow point type shape, 2 upsides of butterfly plate sealing washer are fixed with sealing washer clamp plate 4 through screw 5 and spring washer 6. Butterfly plate 3 subassembly is constituteed to butterfly plate sealing washer 2, butterfly plate 3, sealing washer clamp plate 4, a set of screw 5, a set of spring washer 6, a set of fixed pin 9, upper valve rod 7, lower valve rod 8, 90 rotary motion are done to butterfly plate 3 subassembly. The cross section of the butterfly plate sealing ring 2 is in a shape of a tail arrow. The butterfly plate sealing ring 2 comprises sealing member, mounting, buckle spare, sealing member, mounting, buckle spare structure as an organic whole, the buckle spare passes through the mounting and connects for the sealing member, the buckle spare section is a style of calligraphy structure, the mounting section is the arrow point structure, the sealing member section is the arc structure.
Example 2
The utility model provides a double eccentric soft sealing butterfly valve which can be vertically or horizontally arranged on a pipeline; the motion through rotatory valve rod 7 drives butterfly plate 3 rotatory, and when valve rod 7 was gone up in the clockwise rotation, it drove the 3 subassemblies of butterfly plate to go up valve rod 7, and butterfly plate sealing washer 2 sticiss on the disk seat, plays and cuts the medium effect. The rotary upper valve rod 7 can realize three functions of connection, disconnection or adjustment of a valve pipeline and has a bidirectional sealing function, so that the working efficiency and the performance stability are improved. When the outer circle end of the butterfly plate sealing ring 2 is tightly matched with the sealing surface of the valve body 1, the valve is in a closed state under the action of the upper valve rod 7. The embodiment of the utility model provides a pair of soft sealed butterfly valve of decentration can be arranged in water conservancy water and electricity pipeline, through the mode that surges, realizes opening the function soon and slowly closing the function of valve.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. The utility model discloses each part that mentions is the common technique in prior art, and the technical personnel of this trade should understand, the utility model discloses do not receive the restriction of above-mentioned embodiment, the description only is the explanation in above-mentioned embodiment and the description the principle of the utility model, under the prerequisite that does not deviate from the spirit and the scope of the utility model, the utility model discloses still can have various changes and improvement, these changes and improvement all fall into the protection of claim the utility model is within the scope. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a two off-centre soft seal butterfly valves, its characterized in that includes valve body, butterfly plate sealing washer, fixed pin, goes up valve rod, lower valve rod, sealing washer clamp plate, spring washer, install the butterfly plate in the valve body, both sides are fixed with valve rod, lower valve rod respectively through the fixed pin about the butterfly plate, butterfly plate outside parcel has the butterfly plate sealing washer, the section of butterfly plate sealing washer is tail arrow type shape, butterfly plate sealing washer upside is fixed with the sealing washer clamp plate through screw and spring washer.
2. The butterfly valve of claim 1, wherein the butterfly plate assembly comprises a butterfly plate seal ring, a butterfly plate, a seal ring pressure plate, a set of screws, a set of spring washers, a set of retaining pins, and upper and lower valve stems, the butterfly plate assembly performing a 90 ° rotation.
3. A double offset soft seal butterfly valve as claimed in claim 1 wherein said upper stem is connected through the valve body and the butterfly plate, and said lower stem is fixed as inside the valve body and is of a rotatable construction with the valve body.
4. The butterfly valve of claim 1, wherein the butterfly plate seal ring comprises a sealing member, a fixing member, and a locking member, the sealing member, the fixing member, and the locking member are integrated, the locking member is connected to the sealing member via the fixing member, the locking member has a cross-section of a straight-line structure, the fixing member has a cross-section of an arrow structure, and the sealing member has a cross-section of an arc structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021769791.1U CN212959901U (en) | 2020-08-23 | 2020-08-23 | Double-eccentric soft sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021769791.1U CN212959901U (en) | 2020-08-23 | 2020-08-23 | Double-eccentric soft sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959901U true CN212959901U (en) | 2021-04-13 |
Family
ID=75357864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021769791.1U Expired - Fee Related CN212959901U (en) | 2020-08-23 | 2020-08-23 | Double-eccentric soft sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959901U (en) |
-
2020
- 2020-08-23 CN CN202021769791.1U patent/CN212959901U/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 |
Granted publication date: 20210413 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |