CN210218850U - Special flange for rubber sealing butterfly valve - Google Patents
Special flange for rubber sealing butterfly valve Download PDFInfo
- Publication number
- CN210218850U CN210218850U CN201921100524.2U CN201921100524U CN210218850U CN 210218850 U CN210218850 U CN 210218850U CN 201921100524 U CN201921100524 U CN 201921100524U CN 210218850 U CN210218850 U CN 210218850U
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- Prior art keywords
- flange
- round hole
- butterfly valve
- chamfer
- rubber
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Abstract
A special flange for a rubber sealing butterfly valve comprises a flange, wherein the other side of the flange is connected with the butterfly valve, a large round hole is formed in the upper side of the flange, an oblique chamfer is processed at the top end of the large round hole, a small round hole is formed in the lower side of the flange, a round chamfer is processed at the lower end of the small round hole, the large round hole and the small round hole are in gradual transition through a round angle, and the diameter of the large round hole is larger than that of the small round hole; the outer edge of the flange is also provided with a chamfer; the inner diameter of the flange is equal to the inner diameter of the pipeline; one end of the pipeline penetrates through the large round hole and extends into the flange, and the other end of the flange is attached to sealing rubber to be connected with a butterfly valve. The utility model discloses a reduce the flange internal diameter to increase the purpose that the contact surface that compresses tightly of flange and rubber realized preventing the leakage.
Description
Technical Field
The utility model relates to the field of mechanical equipment, a special flange of rubber seal butterfly valve of special design.
Background
Flanges are parts for interconnecting shafts and pipes, and are used for connecting pipe ends, and flanges are used for connecting equipment inlets and outlets and used for connecting two pieces of equipment. In the prior art, for a rubber sealing butterfly valve, rubber for sealing exists between the rubber sealing butterfly valve and a connecting flange, and due to the reasons of various manufacturers, an actual sealing surface is not completely matched with a national standard flange GB/T9119-2010, and leakage is easily caused by too few pressing contact surfaces.
Therefore, the invention of the special flange for the rubber sealing butterfly valve is urgent.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem of proposing among the above-mentioned background problem, provide a special flange of rubber seal butterfly valve, can make the rubber of the laminating rubber seal butterfly valve more of flange, can not make it take place to leak.
The purpose of the utility model is realized like this: a flange special for a rubber sealing butterfly valve comprises a flange, wherein a large round hole is formed in the upper side of the flange, an oblique chamfer is processed at the top of the large round hole, a small round hole is formed in the lower side of the flange, a round chamfer is processed at the bottom of the small round hole, the large round hole and the small round hole are in gentle transition through a round angle, and the diameter of the large round hole is larger than that of the small round hole;
the outer edge of the flange is also provided with a chamfer;
the inner diameter of the flange is equal to the inner diameter of the pipeline;
one end of the pipeline penetrates through the large round hole and extends into the flange, and the other end of the flange is attached to a sealing rubber connection butterfly valve;
the angle of the oblique chamfer is 30 degrees;
the width of the round chamfer is 0.3-0.5 mm;
the width of the second chamfer is 0.3-0.5 mm.
Compared with the prior art, the utility model has the advantages of:
the oblique chamfer is processed at the top of the large round hole, the round chamfer is processed at the bottom of the small round hole, the large round hole and the small round hole are in gentle transition through a round angle, and the chamfer is processed at the outer edge of the flange, so that technicians can be installed more smoothly and conveniently, and the technicians can be prevented from being injured due to corner angles during installation;
one end of the pipeline penetrates through the large round hole and extends into the flange, so that the flange can be more attached to the pipeline, and the leakage condition can not occur;
through flange other end laminating sealing rubber connection butterfly valve, the diameter ratio prior art's of little round hole flange diameter is little, and flange downside frame is longer than prior art with sealing rubber's contact surface portion, has increased flange and butterfly valve sealing rubber's the contact surface that sticiss, has realized the purpose that prevents the leakage.
Drawings
FIG. 1 is a schematic structural view of a flange special for a rubber seal butterfly valve of the present invention;
fig. 2 is a cross-sectional view of the flange of the present invention;
wherein: 1. the sealing rubber, 2, a flange, 3, a pipeline, 4, an oblique chamfer, 5, a round chamfer, 6, a fillet, 7, 8, a flange inner diameter, 9, a pipeline inner diameter, 10, a big round hole, 11, a small round hole and 12, a butterfly valve.
Detailed Description
The invention is described below with reference to the accompanying drawings and specific embodiments:
as shown in fig. 1-2, a flange special for a rubber sealing butterfly valve comprises a flange 2, wherein a large round hole 10 is formed in the upper side of the flange 2, an oblique chamfer 4 is processed at the top of the large round hole 10, a small round hole 11 is formed in the lower side of the flange 2, a round chamfer 5 is processed at the bottom of the small round hole 11, the large round hole 10 and the small round hole 11 are gradually transited through a round corner 6, and the diameter of the large round hole 10 is larger than that of the small round hole 11;
the outer edge of the flange 2 is also provided with a chamfer 7;
the inner diameter 8 of the flange is equal to the inner diameter 9 of the pipeline;
one end of the pipeline 3 penetrates through the large round hole 10 and extends into the flange 2, and the other end of the flange 2 is attached to the sealing rubber 1 and connected with the butterfly valve 12;
the angle of the inclined chamfer 4 is 30 degrees;
the width of the round chamfer 5 is 0.3-0.5 mm;
the width of the second chamfer 7 is 0.3-0.5 mm.
In the embodiment, the oblique chamfer 4 is processed at the top of the large round hole 10, the round chamfer 5 is processed at the bottom of the small round hole 11, the space between the large round hole 10 and the small round hole 11 is smoothly transited through the round angle 6, and the chamfer 7 is processed at the outer edge of the flange 2, so that technicians can be installed more smoothly and conveniently, and the technicians can be prevented from being injured due to the corner angles during installation;
one end of the pipeline 3 extends into the flange 2 through the large round hole 10, so that the flange 2 can be more attached to the pipeline 3, and the leakage situation can be avoided;
through 2 other ends laminating sealing rubber 1 of flange and connecting butterfly valve 12, the diameter ratio of little round hole 11 is little than prior art's flange diameter, and 2 downside frames of flange are longer than prior art with sealing rubber 1's contact surface portion, have increased flange 2 and butterfly valve sealing rubber 1's the contact surface that sticiss, have realized the purpose that prevents the leakage.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (4)
1. The utility model provides a special flange of rubber seal butterfly valve, includes flange (2), its characterized in that: a large round hole (10) is formed in the upper side of the flange (2), an oblique chamfer (4) is processed at the top of the large round hole (10), a small round hole (11) is formed in the lower side of the flange (2), a round chamfer (5) is processed at the bottom of the small round hole (11), the large round hole (10) and the small round hole (11) are in gradual transition through a round corner (6), and the diameter of the large round hole (10) is larger than that of the small round hole (11);
a chamfer (7) is further processed on the outer edge of the flange (2);
the inner diameter (8) of the flange is equal to the inner diameter (9) of the pipeline;
pipeline (3) one end is passed big round hole (10) and is stretched into inside flange (2), butterfly valve (12) are connected in flange (2) other end laminating sealing rubber (1).
2. The special flange for a rubber sealing butterfly valve according to claim 1, characterized in that: the angle of the inclined chamfer (4) is 30 degrees.
3. The special flange for a rubber sealing butterfly valve according to claim 1, characterized in that: the width of the round chamfer (5) is 0.3-0.5 mm.
4. The special flange for a rubber sealing butterfly valve according to claim 1, characterized in that: the width of the chamfer (7) is 0.3-0.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100524.2U CN210218850U (en) | 2019-07-15 | 2019-07-15 | Special flange for rubber sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921100524.2U CN210218850U (en) | 2019-07-15 | 2019-07-15 | Special flange for rubber sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210218850U true CN210218850U (en) | 2020-03-31 |
Family
ID=69937567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921100524.2U Active CN210218850U (en) | 2019-07-15 | 2019-07-15 | Special flange for rubber sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210218850U (en) |
-
2019
- 2019-07-15 CN CN201921100524.2U patent/CN210218850U/en active Active
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