CN215334540U - Pneumatic butt-clamping butterfly valve - Google Patents
Pneumatic butt-clamping butterfly valve Download PDFInfo
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- CN215334540U CN215334540U CN202121828386.7U CN202121828386U CN215334540U CN 215334540 U CN215334540 U CN 215334540U CN 202121828386 U CN202121828386 U CN 202121828386U CN 215334540 U CN215334540 U CN 215334540U
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- sealing ring
- butterfly plate
- clamping
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Abstract
The utility model provides a pneumatic butt-clamping butterfly valve, which belongs to the technical field of butterfly valves and comprises a valve body, a butterfly plate, a first valve rod, a second valve rod, a first sealing ring and a second sealing ring; the first sealing ring is arranged on the inner circumferential surface of the valve body, the second sealing ring is arranged on the outer circumferential surface of the butterfly plate, the first valve rod is fixedly connected with the top of the butterfly plate, the second valve rod is fixedly connected with the bottom of the butterfly plate, and the first valve rod and the second valve rod are both rotatably connected with the valve body; the butterfly plate is rotatably arranged in the valve body, and the first sealing ring is abutted to the second sealing ring. The butterfly valve is sealed by abutting the first sealing ring and the second sealing ring, so that fluid media can not be leaked when the butterfly plate is closed and is static, the butterfly valve is convenient to operate, simple and practical, and the technical problems that the butterfly valve is poor in sealing performance and the fluid media are easily leaked when water pressure is too high in the prior art are solved.
Description
Technical Field
The utility model belongs to the technical field of butterfly valves, and particularly relates to a pneumatic butt-clamping butterfly valve.
Background
Butterfly valves are widely used in general industries such as petroleum, gas, chemical industry, water treatment, thermal power stations, and the like, and the wafer butterfly valve and the flange butterfly valve are the two most important types of butterfly valves. Flanges are respectively arranged at two ends of the flange type butterfly valve body and connected with the pipe flange. The two ends of the valve body of the wafer butterfly valve are not provided with flanges, only a plurality of guide bolt holes are arranged, and the valve is connected with the end flanges through a group of bolts and nuts. The opposite clamping type butterfly valve is cheap, light in weight and wide in application.
However, in the prior art, the sealing performance of the butt-clamp butterfly valve is poor, and when the water pressure is too high, the leakage of the fluid medium is easily caused.
SUMMERY OF THE UTILITY MODEL
Accordingly, the present invention is directed to a pneumatic butt-clamping butterfly valve to alleviate the above-mentioned problems.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a pneumatic butt-clamping butterfly valve comprises a valve body, a butterfly plate, a first valve rod, a second valve rod, a first sealing ring and a second sealing ring; the first sealing ring is arranged on the inner circumferential surface of the valve body, the second sealing ring is arranged on the outer circumferential surface of the butterfly plate, the first valve rod is fixedly connected with the top of the butterfly plate, the second valve rod is fixedly connected with the bottom of the butterfly plate, and the first valve rod and the second valve rod are both rotatably connected with the valve body; the butterfly plate is rotatably arranged in the valve body, and the first sealing ring is abutted to the second sealing ring.
Furthermore, one side of the butterfly plate is a baffle part, the other side of the butterfly plate is a protruding part, the diameter of the protruding part is smaller than that of the baffle part, and the protruding part is sleeved with the second sealing ring.
Further, the second sealing ring is connected with the protruding portion of the butterfly plate in an interference fit mode.
Further, the baffle portion of the butterfly plate is integrally formed with the protruding portion.
Further, still include the clamping ring, the clamping ring with the baffle portion detachable connection of butterfly plate, the second sealing washer be located the baffle portion with between the clamping ring.
Further, the baffle portion, the second seal ring and the pressing ring are connected through bolts.
Further, the bolt comprises an upper bolt and a lower bolt, the upper bolt is connected with the bottom end of the first valve rod, and the lower bolt is connected with the top end of the second valve rod.
Further, the first sealing ring is provided with a first annular extension part, and the first annular extension part wraps the side face of the valve body.
Furthermore, the first sealing ring is connected with the valve body in a sticking mode.
Further, the second sealing ring is provided with a second annular extending portion, and the second annular extending portion is wrapped on the circumferential surface of the baffle portion of the butterfly plate.
Compared with the prior art, the pneumatic butt-clamping butterfly valve provided by the utility model has the following advantages:
(1) the butterfly valve is sealed by abutting the first sealing ring and the second sealing ring, so that fluid media can not be leaked when the butterfly plate is closed and is static, the butterfly valve is convenient to operate, simple and practical, and the technical problems that the butterfly valve is poor in sealing performance and the fluid media are easily leaked when water pressure is too high in the prior art are solved.
(2) The first sealing ring provided by the utility model is provided with the annular extension part, has good wrapping property and is not easy to fall off.
(3) The second sealing ring provided by the utility model is provided with the annular extension part, has good wrapping property and is not easy to fall off.
(4) The valve rod, the butterfly plate, the sealing ring and the pressing ring are further fixed through the bolts, and the valve rod, the butterfly plate, the sealing ring and the pressing ring are reasonable in structure, stable and durable.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
fig. 1 is a side sectional view of a part of the structure of a pneumatic butt-clamping butterfly valve according to an embodiment of the present invention.
Description of reference numerals:
1-a valve body; 3-a butterfly plate; 301-a baffle portion; 302-a projection; 4-a first valve stem; 5-a second valve stem; 6-first sealing ring; 601-a first annular extension; 7-a second sealing ring; 701-a second annular extension; 8-pressing a ring; 9-bolt mounting; 10-lower bolt.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through elements within two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1, the utility model provides a pneumatic butt-clamping butterfly valve, which comprises a valve body 1, a butterfly plate 3, a first valve rod 4, a second valve rod 5, a first sealing ring 6 and a second sealing ring 7; the first sealing ring 6 is arranged on the inner circumferential surface of the valve body 1, the second sealing ring 7 is arranged on the outer circumferential surface of the butterfly plate 3, the first valve rod 4 is fixedly connected with the top of the butterfly plate 3, the second valve rod 5 is fixedly connected with the bottom of the butterfly plate 3, and the first valve rod 4 and the second valve rod 5 are both rotatably connected with the valve body 1; the butterfly plate 3 is rotatably arranged inside the valve body 1, and the first sealing ring 6 is abutted to the second sealing ring 7.
In an optional implementation manner of this embodiment, it is preferable that one side of the butterfly plate 3 is a baffle portion 301, the other side is a protruding portion 302, a diameter of the protruding portion 302 is smaller than a diameter of the baffle portion 301, and the second sealing ring 7 is sleeved on the protruding portion 302.
In an alternative embodiment of this embodiment, it is preferable that the second sealing ring 7 is connected with the protruding portion 302 of the butterfly plate 3 in an interference fit manner.
In an alternative embodiment of this embodiment, it is preferable that the flap portion 301 of the butterfly plate 3 is integrally formed with the protruding portion 302.
In an optional implementation manner of this embodiment, it is preferable that the butterfly valve further includes a pressing ring 8, where the pressing ring 8 is detachably connected to the baffle portion 301 of the butterfly plate 3, and the second sealing ring 7 is located between the baffle portion 301 and the pressing ring 8.
In an alternative embodiment of this embodiment, it is preferable that the baffle portion 301, the second seal ring 7, and the pressing ring 8 are connected by bolts.
In an alternative embodiment of this embodiment, preferably, the bolts include an upper bolt 9 and a lower bolt 10, the upper bolt 9 is connected to the bottom end of the first valve rod 4, and the lower bolt 10 is connected to the top end of the second valve rod 5.
In an alternative embodiment of this embodiment, it is preferable that the first sealing ring 6 has a first annular extension 601, and the first annular extension 601 wraps the side surface of the valve body 1.
In an optional implementation manner of this embodiment, it is preferable that the first sealing ring 6 is adhesively connected to the valve body 1.
In an optional implementation manner of this embodiment, it is preferable that the second sealing ring 7 has a second annular extension 701, and the second annular extension 701 is wrapped around a circumferential surface of the baffle portion 301 of the butterfly plate 3.
In the in-service use process, the top of first valve rod 4 is connected with external pneumatic means's power take off end, first valve rod 4 and second valve rod 5 all rotate with valve body 1 through the hole of dodging of valve body 1 and are connected, and the two all with butterfly plate 3 fixed connection, consequently, butterfly plate 3 rotates around the axis of first valve rod 4 through pneumatic means's drive, first sealing washer 6 pastes the inner peripheral surface of establishing at valve body 1, 7 covers of second sealing washer establish the outer peripheral face at butterfly plate 3, both butts are sealed, and all be equipped with the better cyclic annular extension of parcel nature, second sealing washer 7 passes through clamping ring 8 and bolt and butterfly plate 3 fixed connection, and the screw rod passes the valve rod and locks with the nut, and is rational in infrastructure, and firm and durable.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a pneumatic butt clamp butterfly valve which characterized in that: the butterfly valve comprises a valve body, a butterfly plate, a first valve rod, a second valve rod, a first sealing ring and a second sealing ring;
the first sealing ring is arranged on the inner circumferential surface of the valve body, the second sealing ring is arranged on the outer circumferential surface of the butterfly plate, the first valve rod is fixedly connected with the top of the butterfly plate, the second valve rod is fixedly connected with the bottom of the butterfly plate, and the first valve rod and the second valve rod are both rotatably connected with the valve body;
the butterfly plate is rotatably arranged in the valve body, and the first sealing ring is abutted to the second sealing ring.
2. The pneumatic butt-clamping butterfly valve of claim 1, wherein: one side of butterfly plate is baffle portion, and the opposite side is the bulge, the diameter of bulge is less than the diameter of baffle portion, the second sealing washer cover is located the bulge.
3. The pneumatic butt-clamping butterfly valve of claim 2, wherein: the second sealing ring is connected with the protruding part of the butterfly plate in an interference fit mode.
4. The pneumatic butt-clamping butterfly valve of claim 3, wherein: the baffle part of the butterfly plate and the protruding part are integrally formed.
5. The pneumatic butt-clamping butterfly valve of claim 4, wherein: still include the clamping ring, the clamping ring with the baffle portion of butterfly plate can be dismantled and be connected, the second sealing washer is located baffle portion with between the clamping ring.
6. The pneumatic butt-clamping butterfly valve of claim 5, wherein: the baffle part, the second sealing ring and the pressing ring are connected through bolts.
7. The pneumatic butt-clamping butterfly valve of claim 6, wherein: the bolt comprises an upper bolt and a lower bolt, the upper bolt is connected with the bottom end of the first valve rod, and the lower bolt is connected with the top end of the second valve rod.
8. The pneumatic butt-clamping butterfly valve of claim 7, wherein: the first sealing ring is provided with a first annular extension part, and the side surface of the valve body is wrapped by the first annular extension part.
9. The pneumatic butt-clamping butterfly valve of claim 8, wherein: the first sealing ring is connected with the valve body in a sticking mode.
10. The pneumatic butt-clamp butterfly valve of claim 9, wherein: the second sealing ring is provided with a second annular extending portion, and the second annular extending portion is wrapped on the circumferential surface of the baffle portion of the butterfly plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121828386.7U CN215334540U (en) | 2021-08-06 | 2021-08-06 | Pneumatic butt-clamping butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121828386.7U CN215334540U (en) | 2021-08-06 | 2021-08-06 | Pneumatic butt-clamping butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215334540U true CN215334540U (en) | 2021-12-28 |
Family
ID=79576217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121828386.7U Active CN215334540U (en) | 2021-08-06 | 2021-08-06 | Pneumatic butt-clamping butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215334540U (en) |
-
2021
- 2021-08-06 CN CN202121828386.7U patent/CN215334540U/en active Active
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