CN209818761U - Improved butterfly valve - Google Patents
Improved butterfly valve Download PDFInfo
- Publication number
- CN209818761U CN209818761U CN201920630876.2U CN201920630876U CN209818761U CN 209818761 U CN209818761 U CN 209818761U CN 201920630876 U CN201920630876 U CN 201920630876U CN 209818761 U CN209818761 U CN 209818761U
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- China
- Prior art keywords
- valve
- butterfly
- rod
- butterfly plate
- valve rod
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- Expired - Fee Related
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Abstract
The utility model relates to an improved butterfly valve, which comprises a valve body, a hand wheel, a sealing ring, a valve rod and a butterfly plate, wherein the hand wheel is movably connected with the top end of the valve body through a transmission rod; the butterfly plate comprises valve separation blades, the valve separation blades are semi-circular, the valve separation blades are arranged in a bilateral symmetry mode relative to the valve rod, the included angle of the two valve separation blades is an obtuse angle, the thickness of each valve separation blade is gradually reduced from one end close to the valve rod to one end far away from the valve rod, and reinforcing flow guide ribs are arranged between the valve separation blades. The utility model relates to an improved generation butterfly valve improves current butterfly plate, utilizes the butterfly plate to realize sealing in the deformation under the pressure effect, prolongs the life of butterfly valve.
Description
Technical Field
The utility model relates to a butterfly valve, concretely relates to improved generation 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 with a closing member which is a disc and rotates around a valve shaft to open and close.
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. The butterfly valve opening and closing piece is a disc-shaped butterfly plate and rotates around the axis of the butterfly plate in the valve body, so that the opening and closing or adjusting purpose is achieved.
The disc-shaped butterfly plate of the existing butterfly valve is a core part for realizing opening and closing. However, the existing butterfly plates are both flat and are located in the same plane as a whole, so that at the opening moment and the closing moment, especially the closing moment, the edge of the disc-shaped butterfly plate far away from the valve rod is slightly deformed by huge pressure, and the butterfly plate is deformed irreversibly after a long time, so that the butterfly valve loses the sealing property and fails.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the improved butterfly valve is characterized in that an existing butterfly plate is improved, sealing is achieved by deformation of the butterfly plate under the action of pressure, and the service life of the butterfly valve is prolonged.
In order to achieve the above object, the present invention provides the following technical solutions:
an improved butterfly valve comprises a valve body, a hand wheel, a sealing ring, a valve rod and a butterfly plate, wherein the hand wheel is movably connected with the top end of the valve body through a transmission rod, the sealing ring is positioned inside the valve body, the valve rod is movably connected with the transmission rod, the butterfly plate is positioned inside the valve body and is connected with the valve rod; the butterfly plate comprises valve separation blades, the valve separation blades are semi-circular, the valve separation blades are arranged in a bilateral symmetry mode relative to the valve rod, the included angle of the two valve separation blades is an obtuse angle, the thickness of each valve separation blade is gradually reduced from one end close to the valve rod to one end far away from the valve rod, and reinforcing flow guide ribs are arranged between the valve separation blades.
Further, the included angle between the valve blocking pieces is 165-178 degrees; the sealing ring is matched with a butterfly plate formed by two valve retaining pieces in shape.
Further, strengthen the water conservancy diversion muscle between the valve separation blade and set up along the axial extension of valve rod, it includes gentle portion and circular arc portion to strengthen the water conservancy diversion muscle.
Furthermore, the reinforcing flow guide ribs are of a left-right symmetrical structure, and the symmetrical shafts of the reinforcing flow guide ribs are parallel to the axis of the valve rod; the circular arc portion is located the both sides of gentle portion, circular arc portion and valve flap contact mutually.
The utility model has the advantages that: the utility model provides an improved generation butterfly valve, improves the structure of present butterfly plate by a wide margin, utilizes the edge that the butterfly plate kept away from the valve rod to be in the deformation realization under the pressure effect sealed to guarantee the sealing performance of butterfly valve in long-term use, and then the life of extension butterfly valve.
Drawings
Fig. 1 is a schematic structural diagram of the improved butterfly valve of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
In the figure: 1. a valve body; 2. a hand wheel; 3. a seal ring; 4. a valve stem; 5. a butterfly plate; 51. a valve flap; 52. reinforcing the flow guide ribs; 521. a smoothing part; 522. a circular arc portion.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 1 and 2, an improved butterfly valve comprises a valve body 1, a hand wheel 2, a sealing ring 3, a valve rod 4 and a butterfly plate 5, wherein the hand wheel 2 is movably connected with the top end of the valve body 1 through a transmission rod, the sealing ring 3 is positioned inside the valve body 1, the valve rod 4 is movably connected with the transmission rod, the butterfly plate 5 is positioned inside the valve body 1, and the butterfly plate 5 is connected with the valve rod 4; butterfly plate 5 includes valve separation blade 51, valve separation blade 51 is used for blockking the fluid, realizes opening and closing of valve, valve separation blade 51 is semicircle form, valve separation blade 51 is bilateral symmetry form setting for valve rod 4, and the contained angle of two valve separation blades 51 is the obtuse angle, valve separation blade 51's thickness reduces to keeping away from 4 one ends of valve rod from being close to valve rod, be provided with between the valve separation blade 51 and strengthen water conservancy diversion muscle 52, strengthen water conservancy diversion muscle 52 and be used for strengthening butterfly plate 5's structural strength, avoid two valve separation blade 51's deformation too big, can carry out the water conservancy diversion to the fluid on butterfly plate 5 surfaces simultaneously to reduce the resistance.
The included angle between the valve blocking pieces 51 is 165-178 degrees; the sealing ring 3 is matched with the shape of a butterfly plate 5 formed by two valve blocking pieces 51.
The reinforced flow guide rib 52 between the valve baffles 51 extends along the axial direction of the valve rod 4, and the reinforced flow guide rib 52 comprises a flat part 521 and an arc part 522.
The reinforcing flow guide ribs 52 are in a left-right symmetrical structure, and the symmetrical shafts of the reinforcing flow guide ribs are parallel to the axis of the valve rod 4; the circular arc portion 522 is located at both sides of the relief portion 521, and the circular arc portion 522 is in contact with the valve stopper 51.
The utility model discloses a theory of operation does: fig. 2 shows a valve closing state, in this state, two valve stoppers 51 of the butterfly plate 5 all receive a large pressure, and the positions of the two valve stoppers 51 far away from the valve rod 4 all generate a slight deformation, and under the action of the obtuse included angle, the two valve stoppers 51 are in an expansion state of being folded backwards under pressure, so that the valve stoppers 51 can abut against the sealing ring, and further the sealing performance of the valve can be ensured.
When the valve needs to be opened, the hand wheel 2 is manually screwed, the valve rod 4 is driven to rotate through the transmission rod, the butterfly plate 5 is enabled to rotate relative to the valve body 1, the valve baffle 51 and the sealing ring 3 are staggered, and then the valve is opened.
The above examples are provided for further illustration of the present invention, but do not limit the present invention to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood as being within the protection scope of the present invention.
Claims (4)
1. An improved butterfly valve comprises a valve body (1), a hand wheel (2), a sealing ring (3), a valve rod (4) and a butterfly plate (5), wherein the hand wheel (2) is movably connected with the top end of the valve body (1) through a transmission rod, the sealing ring (3) is positioned inside the valve body (1), the valve rod (4) is movably connected with the transmission rod, the butterfly plate (5) is positioned inside the valve body (1), and the butterfly plate (5) is connected with the valve rod (4); the method is characterized in that: butterfly plate (5) are including valve separation blade (51), valve separation blade (51) are half circular, valve separation blade (51) are bilateral symmetry form setting for valve rod (4), and the contained angle of two valve separation blades (51) is the obtuse angle, the thickness of valve separation blade (51) reduces from being close to valve rod (4) one end to keeping away from valve rod (4) one end gradually, be provided with between valve separation blade (51) and strengthen water conservancy diversion muscle (52).
2. An improved butterfly valve as claimed in claim 1, wherein: the included angle between the valve blocking pieces (51) is 165-178 degrees; the sealing ring (3) is matched with a butterfly plate (5) formed by two valve retaining pieces (51) in shape.
3. An improved butterfly valve as claimed in claim 2, wherein: strengthen water conservancy diversion muscle (52) between valve separation blade (51) along the axial extension setting of valve rod (4), strengthen water conservancy diversion muscle (52) including flat gentle portion (521) and circular arc portion (522).
4. An improved butterfly valve according to claim 3, in which: the reinforcing flow guide ribs (52) are in a left-right symmetrical structure, and the symmetrical shafts of the reinforcing flow guide ribs are parallel to the axis of the valve rod (4); the circular arc portion (522) is located on two sides of the flat buffering portion (521), and the circular arc portion (522) is in contact with the valve blocking piece (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920630876.2U CN209818761U (en) | 2019-05-06 | 2019-05-06 | Improved butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920630876.2U CN209818761U (en) | 2019-05-06 | 2019-05-06 | Improved butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818761U true CN209818761U (en) | 2019-12-20 |
Family
ID=68882523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920630876.2U Expired - Fee Related CN209818761U (en) | 2019-05-06 | 2019-05-06 | Improved butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818761U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485534A (en) * | 2020-04-21 | 2020-08-04 | 广东润威建设工程有限公司 | Flood control dam with mud-water separation device |
-
2019
- 2019-05-06 CN CN201920630876.2U patent/CN209818761U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485534A (en) * | 2020-04-21 | 2020-08-04 | 广东润威建设工程有限公司 | Flood control dam with mud-water separation device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20200506 |