CN215487711U - Flange butterfly valve - Google Patents
Flange butterfly valve Download PDFInfo
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- CN215487711U CN215487711U CN202023040955.XU CN202023040955U CN215487711U CN 215487711 U CN215487711 U CN 215487711U CN 202023040955 U CN202023040955 U CN 202023040955U CN 215487711 U CN215487711 U CN 215487711U
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Abstract
The utility model discloses a flange butterfly valve, and belongs to the technical field of marine valves. The flange butterfly valve includes: the top of the valve body is fixedly connected with the fixed end of the screw head, a first cavity and a second cavity are formed in the valve body, and the first cavity is communicated with the second cavity; the first end of the valve rod penetrates through the top of the valve body and is fixedly connected with the action end of the screw head, the second end of the valve rod extends into the valve body and is rotatably connected with the bottom of the valve body, and a sealing ring is arranged between the valve rod and the top of the valve body; the butterfly plate is arranged between the first cavity and the second cavity and fixedly connected with the valve rod; the bottom cover is fixedly connected with the bottom of the valve body. The flange butterfly valve is reliable in sealing and avoids leakage.
Description
Technical Field
The utility model relates to the technical field of marine valves, in particular to a flange butterfly valve.
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 around a valve shaft, wherein a closing member (a valve clack or a butterfly plate) is a disk. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The pipe mainly plays a role in cutting off and throttling.
Flange butterfly valves are one of many types of butterfly valves. However, in the prior art, the flange butterfly valve has poor sealing effect and is easy to leak.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flange butterfly valve, which solves or partially solves the technical problems that the flange butterfly valve in the prior art is poor in sealing effect and easy to leak.
In order to solve the above technical problems, the present invention provides a flange butterfly valve comprising: a screw head; the top of the valve body is fixedly connected with the fixed end of the screw head, a first cavity and a second cavity are formed in the valve body, and the first cavity is communicated with the second cavity; the first end of the valve rod penetrates through the top of the valve body and is fixedly connected with the action end of the screw head, the second end of the valve rod extends into the valve body and is rotatably connected with the bottom of the valve body, and a sealing ring is arranged between the valve rod and the top of the valve body; the butterfly plate is arranged between the first cavity and the second cavity and fixedly connected with the valve rod; the bottom cover is fixedly connected with the bottom of the valve body.
Further, a plurality of first sealing rings are arranged between the valve rod and the sealing ring.
Furthermore, a plurality of second sealing rings are arranged between the top of the valve body and the sealing ring.
Furthermore, the top of the valve body is provided with an installation groove; the sealing ring is arranged in the mounting groove.
Further, a sealing pressure ring is arranged at the top of the sealing ring; the sealing press ring is detachably connected with the top of the valve body.
Further, the flange butterfly valve still includes: pressing a ring; the clamping ring is fixedly connected with the edge of the end face of the valve rod, which deviates from the butterfly plate.
Further, a third sealing ring is arranged between the pressing ring and the butterfly plate.
Further, the flange butterfly valve still includes: a drive device; the fixed end of the driving device is connected with the fixed end of the spiral head, and the action end of the driving device is fixedly connected with the action end of the spiral head.
Further, the driving device further includes: a support seat and a rotating rod; the supporting seat is connected with the fixed end of the spiral head; the rotating rod penetrates through the supporting seat and is fixedly connected with the action end of the spiral head.
Further, the driving device further includes: a limiting member; the supporting seat is provided with a first limiting hole, and the rotating rod is provided with a second limiting hole; the limiting piece penetrates through the first limiting hole and is arranged in the second limiting hole in a pluggable mode.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the top of the valve body is fixedly connected with the fixed end of the spiral head, the spiral connection is realized through the spiral head, the valve rod is convenient to operate, the action of the valve rod is limited through the spiral head, the valve rod can only rotate but can not move up and down, because the valve body is internally provided with the first cavity and the second cavity, the first cavity is communicated with the second cavity, the first end of the valve rod penetrates through the top of the valve body and is fixedly connected with the action end of the spiral head, the second end of the valve rod extends into the valve body and is rotatably connected with the bottom of the valve body, and a sealing ring is arranged between the valve rod and the top of the valve body, the valve rod and the top of the valve body are sealed through the sealing ring, the sealing is reliable, the leakage is avoided, because the butterfly plate is arranged between the first cavity and the second cavity and is fixedly connected with the valve rod, the valve rod can drive the butterfly plate to rotate between the first cavity and the second cavity, the bottom cover is fixedly connected with the bottom of the valve body, so that the valve body is supported by the bottom cover through the bottom cover, and the valve body is sealed.
Drawings
Fig. 1 is a schematic structural diagram of a flange butterfly valve according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a valve body of the flange butterfly valve of FIG. 1;
FIG. 3 is a schematic structural view of a valve stem of the flange butterfly valve of FIG. 1;
fig. 4 is a schematic structural diagram of a butterfly plate of the flange butterfly valve in fig. 1.
Detailed Description
Referring to fig. 1, a flange butterfly valve provided in an embodiment of the present invention includes:
the top of the valve body 2 is fixedly connected with the fixed end of the screw head 1, a first cavity 2-1 and a second cavity 2-2 are arranged in the valve body 2, and the first cavity 2-1 is communicated with the second cavity 2-2.
The first end of valve rod 3 and the action end fixed connection of spiral head 1, the second end of valve rod 3 passes the top of valve body 2 and is connected with the bottom of valve body 2 rotatablely, the first end of valve rod 3 run through the top of valve body 2 and with the action end fixed connection of spiral head 1, the second end of valve rod 3 stretches into in the valve body 2 and can rotate ground and be connected with the bottom of valve body 2, be provided with sealing ring 4 between the top of valve rod 3 and valve body 2.
The butterfly plate 5 is arranged between the first cavity 2-1 and the second cavity 2-2, and the butterfly plate 5 is fixedly connected with the valve rod 3.
The bottom cover 6 is fixedly connected with the bottom of the valve body 2.
In the embodiment of the present application, since the top of the valve body 2 is fixedly connected to the fixed end of the screw head 1, the screw head 1 is used to realize a screw connection, so as to facilitate the operation of the valve rod 3, the screw head 1 limits the movement of the valve rod 3, so that the valve rod 3 can only rotate but cannot move up and down, since the top of the valve body 2 is fixedly connected to the fixed end of the screw head 1, the valve body 2 is provided with the first cavity 2-1 and the second cavity 2-2, the first cavity 2-1 is communicated with the second cavity 2-2, the first end of the valve rod 3 penetrates through the top of the valve body 2 and is fixedly connected to the moving end of the screw head 1, the second end of the valve rod 3 extends into the valve body 2 and is rotatably connected to the bottom of the valve body 2, the sealing ring 4 is arranged between the valve rod 3 and the top of the valve body 2, so that the valve rod 3 and the top of the valve body 2 are sealed by the sealing ring 4, the sealing is reliable, leakage is avoided, the butterfly plate 5 is arranged between the first cavity 2-1 and the second cavity 2-2, and the butterfly plate 5 is fixedly connected with the valve rod 3, so that the valve rod 3 can drive the butterfly plate 5 to rotate between the first cavity 2-1 and the second cavity 2-2, the on-off or flow control of a pipeline is realized, and the bottom cover 6 is fixedly connected with the bottom of the valve body 2, so that the bottom cover 6 can pass through to support the valve body 2, and the sealing of the valve body 2 is realized.
The spiral head 1, the valve body 2, the butterfly plate 5 and the bottom cover 6 are made of titanium alloy, the titanium alloy is ZTA2, and the spiral head is formed by casting, so that the spiral head improves the service life of a product and increases the corrosion resistance compared with the conventional copper alloy plate welding, cast iron and cast steel materials, and has the advantages of more compact structure and more attractive overall appearance. Meanwhile, the spiral head 1, the valve body 2, the butterfly plate 5 and the bottom cover 6 are made of titanium alloy, so that the valve is compact in structure, light in weight, convenient to disassemble and assemble, easy to replace and good in maintainability.
The valve rod 3 is made of titanium alloy with the model number of TA31, has high strength, high toughness and corrosion resistance, and prolongs the service life of the valve rod 3 compared with a copper alloy rod.
Referring to fig. 2, specifically, the top of the valve body 2 is provided with an installation groove; the sealing ring 4 is arranged in the mounting groove. The top of the sealing ring 4 is provided with a sealing press ring 7; the sealing press ring 7 is detachably connected with the top of the valve body 2. In the embodiment, the top of the valve body 2 is provided with an embedded groove 2-3, the sealing press ring is embedded in the embedded groove 2-3, the sealing press ring 7 is guaranteed to be installed in place, and the sealing press ring 7 can be connected with the top of the valve body 2 through a bolt, so that the valve body is convenient to disassemble and assemble.
Wherein, sealing ring 5 comprises sealing filler, fills in the mounting groove, extrudees sealing filler through sealed clamping ring 7 and plays the sealing effect, guarantees sealed effect. Meanwhile, when the sealing ring 4 fails, the sealing press ring 7 is detached from the top of the valve body 2, the sealing ring 4 is replaced, and the sealing filler is convenient to replace.
Referring to fig. 3, in particular, a plurality of first sealing rings 8 are arranged between the valve rod 3 and the sealing ring 4. A plurality of second sealing rings 9 are arranged between the top of the valve body 2 and the sealing ring 4. The number of the first sealing rings 8 is more than or equal to 2, and the number of the second sealing rings 9 is more than or equal to 2.
In the present embodiment, the plurality of first seal rings 8 and the plurality of second seal rings 9 are alternately arranged, thereby further ensuring the sealing effect.
In this embodiment, a plurality of first sealing rings 8 and a plurality of second sealing rings 9 can all be O-shaped sealing rings, seal between valve rod 3 and sealing ring 4 through first sealing ring 8, seal between the top of valve body 2 and sealing ring 4 through second sealing ring 9, realize that two O-shaped rings are sealed, further guarantee sealed effect.
Through 7 extrusion seal packing of sealed clamping ring, realize the sealed to valve body 2 and valve rod 3, simultaneously, seal between valve rod 3 and sealing ring 4 through first sealing washer 8, seal between the top of valve body 2 and sealing ring 4 through second sealing washer 9, further guarantee sealed effect.
Referring to fig. 4, in particular, the flange butterfly valve further includes: a pressure ring 10.
The pressing ring 10 is fixedly connected with the edge of the end face of the butterfly plate 5 departing from the valve rod 3. In this embodiment, the clamping ring 10 can be fixedly connected with the edge of the end face of the butterfly plate 5 departing from the valve rod 3 through a bolt, so that the clamping ring is convenient to disassemble and assemble.
A third sealing ring 11 is arranged between the pressing ring 10 and the butterfly plate 5, the third sealing ring 11 is pressed on the butterfly plate 5 through the pressing ring 10, when the valve rod 3 drives the butterfly plate 5 to rotate between the first cavity 2-1 and the second cavity 2-2, and the pipeline is closed, the butterfly plate 5 and the valve body 2 are sealed through the third sealing ring 11, and leakage is avoided.
Specifically, the flange butterfly valve still includes: a drive means 12.
The fixed end of the driving device 12 is connected with the fixed end of the screw head 1, and the action end of the driving device 12 is connected with the action end of the screw head 1.
The drive device 12 further includes: a supporting seat 12-1 and a rotating rod 12-2.
The supporting seat 12-1 is connected with the fixed end of the spiral head 1. In this embodiment, the supporting seat 12-1 can be connected to the fixed end of the screw head 1 by a bolt, so as to facilitate the assembly and disassembly.
The rotating rod 12-2 penetrates through the supporting seat 12-1 and is fixedly connected with the action end of the spiral head 1. In the embodiment, the rotating rod 12-2 passes through the supporting seat 12-1 and can be fixedly connected with the action end of the screw head 1 through a bolt, so that the assembly and disassembly are convenient.
Wherein, the rotating rod 12-2 rotates on the supporting seat 12-1, and the rotating rod 12-2 drives the action end of the screw head 1 to rotate, so as to drive the valve rod 3 to rotate, thereby realizing the on-off or flow control of the pipeline.
The drive device 12 further includes: a limiting member 12-3.
A first limiting hole is formed in the supporting seat 12-1, and a second limiting hole is formed in the rotating rod 12-2;
the limiting piece 12-3 passes through the first limiting hole and is arranged in the second limiting hole in a pluggable mode.
When the on-off or flow control of the pipeline is to be realized, the rotating rod 12-2 drives the butterfly plate 5 to reach a working position through the spiral head 1 and the valve rod 3 to control the on-off or flow control of the pipeline, and when the on-off or flow control of the pipeline is finished, the limiting part 12-3 penetrates through the first limiting hole and is inserted into the second limiting hole to limit the rotating rod 12-2 to rotate, so that the valve rod 3 is ensured to be immobile.
Wherein, the limiting member 12-3 can be a bolt.
In the embodiment, a handle 13 is fixedly arranged at the end of the rotating rod 12-2 departing from the screw head 1, and the rotating rod 12-2 is conveniently operated by operating the handle 13.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (9)
1. A flange butterfly valve, comprising:
a screw head;
the top of the valve body is fixedly connected with the fixed end of the screw head, a first cavity and a second cavity are formed in the valve body, and the first cavity is communicated with the second cavity;
the first end of the valve rod penetrates through the top of the valve body and is fixedly connected with the action end of the screw head, the second end of the valve rod extends into the valve body and is rotatably connected with the bottom of the valve body, and a sealing ring is arranged between the valve rod and the top of the valve body;
the butterfly plate is arranged between the first cavity and the second cavity and fixedly connected with the valve rod;
the bottom cover is fixedly connected with the bottom of the valve body;
a plurality of first sealing rings are arranged between the valve rod and the sealing ring.
2. The flange butterfly valve of claim 1, wherein:
and a plurality of second sealing rings are arranged between the top of the valve body and the sealing ring.
3. The flange butterfly valve of claim 1, wherein:
the top of the valve body is provided with an installation groove;
the sealing ring is arranged in the mounting groove.
4. The flange butterfly valve of claim 3, wherein:
the top of the sealing ring is provided with a sealing pressure ring;
the sealing press ring is detachably connected with the top of the valve body.
5. The flange butterfly valve of claim 1, further comprising: pressing a ring;
the clamping ring is fixedly connected with the edge of the end face of the valve rod, which deviates from the butterfly plate.
6. The flange butterfly valve of claim 5, wherein:
and a third sealing ring is arranged between the pressing ring and the butterfly plate.
7. The flange butterfly valve of claim 1, further comprising: a drive device;
the fixed end of the driving device is connected with the fixed end of the spiral head, and the action end of the driving device is fixedly connected with the action end of the spiral head.
8. The flange butterfly valve of claim 7, wherein the drive device further comprises: a support seat and a rotating rod;
the supporting seat is connected with the fixed end of the spiral head;
the rotating rod penetrates through the supporting seat and is fixedly connected with the action end of the spiral head.
9. The flange butterfly valve of claim 8, wherein the drive device further comprises: a limiting member;
the supporting seat is provided with a first limiting hole, and the rotating rod is provided with a second limiting hole;
the limiting piece penetrates through the first limiting hole and is arranged in the second limiting hole in a pluggable mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023040955.XU CN215487711U (en) | 2020-12-16 | 2020-12-16 | Flange butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023040955.XU CN215487711U (en) | 2020-12-16 | 2020-12-16 | Flange butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215487711U true CN215487711U (en) | 2022-01-11 |
Family
ID=79717370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023040955.XU Active CN215487711U (en) | 2020-12-16 | 2020-12-16 | Flange butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215487711U (en) |
-
2020
- 2020-12-16 CN CN202023040955.XU patent/CN215487711U/en active Active
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