CN216200620U - High-strength hard-sealing corrosion-resistant flange butterfly valve - Google Patents
High-strength hard-sealing corrosion-resistant flange butterfly valve Download PDFInfo
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- CN216200620U CN216200620U CN202122513277.2U CN202122513277U CN216200620U CN 216200620 U CN216200620 U CN 216200620U CN 202122513277 U CN202122513277 U CN 202122513277U CN 216200620 U CN216200620 U CN 216200620U
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Abstract
The utility model discloses a high-strength hard-sealing corrosion-resistant flange butterfly valve, wherein the back of a butterfly plate is provided with a boss, the two ends of the boss are provided with slopes, the surface of the boss, which is far away from the butterfly plate, is an inward-concave arc surface, two fixing seats are respectively and symmetrically arranged on the boss, the back of the butterfly plate is also provided with latticed convex ribs, the inner wall of a valve cavity and the back of the butterfly plate are provided with epoxy resin powder coatings, the front of the butterfly plate is also fixed with a ceramic plate, one end of the valve cavity is fixed with an elastic sealing ring through a cover ring, and the joint of the butterfly plate and the ceramic plate is provided with a circle of outward-convex stainless steel hard seal. And the replacement of the elastic sealing strip is facilitated.
Description
Technical Field
The utility model relates to a high-strength hard-sealing corrosion-resistant flange butterfly valve.
Background
The butterfly plate of the eccentric butterfly valve in the prior art is only connected with the valve rod through the fixing seat, the strength of the butterfly plate and the joint of the butterfly plate and the valve rod has a reinforced space, and on the other hand, the corrosion resistance of the eccentric butterfly valve in the prior art is not ideal.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides a high-strength hard-sealing corrosion-resistant flange butterfly valve.
The technical scheme of the utility model is as follows: a high-strength hard-sealing corrosion-resistant flange butterfly valve comprises a valve body, a butterfly plate, an upper valve rod and a lower valve rod, wherein the butterfly plate is arranged in the valve body and matched with the inner wall of a valve cavity of the valve body;
the inner wall of the valve cavity and the back surface of the butterfly plate are provided with epoxy resin powder coatings, and the front surface of the butterfly plate is also fixed with a ceramic plate;
the one end of valve pocket has spacing step, be fixed with elastic sealing ring through the cover ring on the spacing step, elastic sealing ring's inner ring is the loudspeaker form and its less one end sets up towards the valve pocket, the junction of butterfly plate and ceramic plate is equipped with the stainless steel hard seal of round evagination, and when the butterfly valve was in under the closed condition, the butt was sealed at elastic sealing ring inner ring middle part firmly to the stainless steel.
Specifically, the upper valve rod and the lower valve rod are respectively fixed with the corresponding fixing seats, and the upper end of the upper valve rod and the lower end of the lower valve rod are respectively connected to the valve body in a rotating mode.
Specifically, a plurality of screw holes are formed in the butterfly plate, a plurality of corresponding counter bores are formed in the back face of the ceramic plate, and the ceramic plate is glued with the butterfly plate through strong glue and fixed through fixing bolts.
Furthermore, the front surface of the butterfly plate and the back surface of the ceramic plate are provided with convex strips and grooves which correspond to each other.
Specifically, the cover ring is fixed to the valve body by a fixing screw.
Specifically, the peripheries of the butterfly plate and the ceramic plate are slopes corresponding to the elastic sealing ring.
Furthermore, the back of the ceramic plate is provided with a groove corresponding to the stainless steel hard seal, the stainless steel hard seal sleeve is arranged on the groove and is clamped by the ceramic plate and the butterfly plate, and an elastic cushion is further arranged at the joint of the ceramic plate and the stainless steel hard seal.
The utility model has the beneficial effects that: the butterfly plate and the connecting part of the butterfly plate and the valve rod are designed in a reinforced mode, meanwhile, the ceramic plate is arranged on the front face, which is easy to corrode, of the butterfly plate, corrosion resistance of the butterfly plate is improved, strength of the butterfly plate cannot be lost, in addition, the sealing structure of the butterfly plate and the valve cavity is improved, sealing performance of the butterfly plate is enhanced, and replacement of elastic sealing strips is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged view of a portion a in fig. 1.
Detailed Description
The technical scheme of the utility model is further specifically described by the following embodiments and the accompanying drawings.
Referring to fig. 1 and 2, the high-strength hard-sealing corrosion-resistant flange butterfly valve comprises a valve body 1, a butterfly plate 2, an upper valve rod 3 and a lower valve rod 4, wherein the butterfly plate 2 is arranged in the valve body 1 and matched with the inner wall of a valve cavity 8 of the valve body 1, two fixing seats 5 are arranged on the back surface of the butterfly plate 2, the upper valve rod 3 and the lower valve rod 4 are respectively fixed with the corresponding fixing seats 5, the upper end of the upper valve rod 3 and the lower end of the lower valve rod 4 are respectively and rotatably connected to the valve body 1, and the butterfly valve can be opened and closed by rotating the butterfly plate 2;
the back of the butterfly plate 2 is provided with a boss 6, two ends of the boss 6 are provided with slope surfaces, the surface of the boss 6, far away from the butterfly plate 2, is an inward-concave arc surface, the two fixing seats 5 are symmetrically arranged on the boss 6 respectively, and the back of the butterfly plate 2 is also provided with latticed convex ribs, so that the structure is favorable for improving the strength of the butterfly plate 2;
the inner wall of the valve cavity 8 and the back surface of the butterfly plate 2 are provided with epoxy resin powder coatings to improve the corrosion resistance of the butterfly valve, and the upper valve rod 3 and the lower valve rod 4 are stainless steel rod bodies;
considering that the contact time of the front surface of the butterfly plate 2 and liquid in the pipeline is long, and the front surface of the butterfly plate 2 is impacted more in the rotating process, only a coating is arranged, and the coating can be corroded or washed away by the liquid quickly, and a ceramic plate 7 is fixed on the front surface of the butterfly plate 2;
specifically, the butterfly plate 2 is provided with a plurality of screw holes, the back surface of the ceramic plate 7 is provided with a plurality of corresponding counter bores, and the ceramic plate 7 is glued with the butterfly plate 2 through strong glue and fixed through fixing bolts;
in another embodiment, the front surface of the butterfly plate 2 and the back surface of the ceramic plate 7 are further provided with convex strips and concave grooves corresponding to each other, so as to enhance the reliability of the connection between the ceramic plate 7 and the butterfly plate 2;
one end of the valve cavity 8 is provided with a limiting step, an elastic sealing ring 10 is fixed on the limiting step through a cover ring 9, the inner ring of the elastic sealing ring 10 is in a horn shape, the smaller end of the inner ring is arranged towards the valve cavity 8, a circle of convex stainless steel hard seal 11 is arranged at the joint of the butterfly plate 2 and the ceramic plate 7, and when the butterfly valve is in a closed state, the stainless steel hard seal 11 is abutted against the middle part of the inner ring of the elastic sealing ring 10, so that the elastic sealing ring 10 cannot bend towards the direction of the valve cavity 8 to cause leakage; the elastic sealing ring 10 is arranged at one end of the valve cavity 8, and the elastic sealing ring 10 is a wearing part so as to be convenient to replace;
specifically, the cover ring 9 is fixed with the valve body 1 through a fixing screw;
in another embodiment, the peripheries of the butterfly plate 2 and the ceramic plate 7 are slopes corresponding to the elastic sealing ring 10;
in another embodiment, the back surface of the ceramic plate 7 has a groove corresponding to the stainless steel hard seal 11, the stainless steel hard seal 11 is sleeved on the groove and is clamped by the ceramic plate 7 and the butterfly plate 2, and an elastic pad is further arranged at the joint of the ceramic plate 7 and the stainless steel hard seal 11 to prevent the stainless steel hard seal 11 from damaging the ceramic plate 7.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a corrosion-resistant flange butterfly valve is sealed firmly to high strength, includes valve body, butterfly plate, goes up valve stem and lower valve rod, the butterfly plate sets up in the valve body and cooperatees with the valve pocket inner wall of valve body, the back of butterfly plate has two fixing bases, its characterized in that: the back of the butterfly plate is provided with a boss, two ends of the boss are provided with slope surfaces, the surface of the boss far away from the butterfly plate is an inward-concave arc-shaped surface, the two fixing seats are respectively and symmetrically arranged on the boss, and the back of the butterfly plate is also provided with latticed convex ribs;
the inner wall of the valve cavity and the back surface of the butterfly plate are provided with epoxy resin powder coatings, and the front surface of the butterfly plate is also fixed with a ceramic plate;
the one end of valve pocket has spacing step, be fixed with elastic sealing ring through the cover ring on the spacing step, elastic sealing ring's inner ring is the loudspeaker form and its less one end sets up towards the valve pocket, the junction of butterfly plate and ceramic plate is equipped with the stainless steel hard seal of round evagination, and when the butterfly valve was in under the closed condition, the butt was sealed at elastic sealing ring inner ring middle part firmly to the stainless steel.
2. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 1, wherein: the upper valve rod and the lower valve rod are respectively fixed with the corresponding fixing seats, and the upper end of the upper valve rod and the lower end of the lower valve rod are respectively connected to the valve body in a rotating mode.
3. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 1, wherein: the butterfly plate is provided with a plurality of screw holes, the back surface of the ceramic plate is provided with a plurality of corresponding counter bores, and the ceramic plate is glued with the butterfly plate through a powerful glue and fixed through a fixing bolt.
4. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 3, wherein: the front surface of the butterfly plate and the back surface of the ceramic plate are also provided with convex strips and grooves which correspond to each other.
5. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 1, wherein: the cover ring is fixed with the valve body through a fixing screw.
6. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 1, wherein: the peripheries of the butterfly plate and the ceramic plate are slopes corresponding to the elastic sealing rings.
7. A high strength, hard seal, corrosion resistant flange butterfly valve according to claim 1, wherein: the back of the ceramic plate is provided with a groove corresponding to the stainless steel hard seal, the stainless steel hard seal sleeve is arranged on the groove and is clamped by the ceramic plate and the butterfly plate, and an elastic cushion is further arranged at the joint of the ceramic plate and the stainless steel hard seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122513277.2U CN216200620U (en) | 2021-10-19 | 2021-10-19 | High-strength hard-sealing corrosion-resistant flange butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122513277.2U CN216200620U (en) | 2021-10-19 | 2021-10-19 | High-strength hard-sealing corrosion-resistant flange butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216200620U true CN216200620U (en) | 2022-04-05 |
Family
ID=80884215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122513277.2U Active CN216200620U (en) | 2021-10-19 | 2021-10-19 | High-strength hard-sealing corrosion-resistant flange butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216200620U (en) |
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2021
- 2021-10-19 CN CN202122513277.2U patent/CN216200620U/en active Active
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