CN205479390U - Novel structure of butterfly valve - Google Patents
Novel structure of butterfly valve Download PDFInfo
- Publication number
- CN205479390U CN205479390U CN201620298913.0U CN201620298913U CN205479390U CN 205479390 U CN205479390 U CN 205479390U CN 201620298913 U CN201620298913 U CN 201620298913U CN 205479390 U CN205479390 U CN 205479390U
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- sealing ring
- butterfly plate
- valve rod
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Abstract
The utility model relates to a novel structure of butterfly valve belongs to the flow control technical field in the fluid pipeline. Technical scheme is: valve body (1) inner chamber is equipped with butterfly plate (2), is equipped with valve rod (3) on the butterfly plate, is equipped with on valve body (1) to rotate the hole, and the rotation that match on the valve body valve rod (3) is downthehole, and the butterfly plate rotates with valve rod (3) together, be equipped with between valve rod (3) and valve body (1) sealing washer (4), the butterfly plate comprises non - metal core (6) and sealing ring (7), has inlayed sealing ring (7) on non - metal core's the outer circumference, the external diameter of sealing ring and the internal diameter phase -match of valve body inner chamber. The beneficial effect of the utility model: can be used to the flow control of all bore pipelines, the small -bore pipeline flow control of specially adapted, butterfly plate non metallic member, easily machine -shaping, when the butterfly plate is opened, be streamlinedly along water flow direction to the stationary flow reduces the pressure loss, production cost is reduced, reduce the moment of torsion, but and arrange the dirt in card antiport after death.
Description
Technical field
This utility model relates to the structure of a kind of novel butterfly valve, belongs to the Flow-rate adjustment technical field in fluid line.
Background technology
The valve being presently used for small-bore pipeline (general DN40mm and following) Flow-rate adjustment mainly uses ball valve.But, using ball valve to reconcile small-bore pipeline flow, there is some problem following: 1, ball-valve structure is complicated, material is high with assembly cost；2. opening and closing moment of torsion is high；3. seal structure complex, easily weares and teares, and the life-span is short；4., after using in water for a long time, easily cause ball valve bite, and cannot get rid of voluntarily, thus cannot normally opening and closing.Butterfly valve is mainly used in the Flow-rate adjustment of Large diameter pipeline, the main cause that existing butterfly valve may not apply to small-bore pipeline Flow-rate adjustment is as follows: 1. the main material of the spool of butterfly plate is metal, smaller for the butterfly valve core size of small-bore pipeline Flow-rate adjustment, sharp processing difficulty, cost is high；The most existing butterfly valve structure is complicated, and crushing is too high；3. sealing easily abrasion, the life-span is short.
Utility model content
The purpose of this utility model is to provide the structure of a kind of novel butterfly valve, changes valve mechanism, reduces production cost, and change seals structure, reduces moment of torsion, and card after death can the row of rotating backward dirt, the problems referred to above of solution background technology existence.
The technical solution of the utility model is:
The structure of a kind of novel butterfly valve, comprises valve body, butterfly plate, valve rod and sealing ring, and body cavity is provided with butterfly plate, and butterfly plate is provided with valve rod, and valve body is provided with rotation hole, and in valve rod coupling rotation hole on valve body, butterfly plate rotates together with valve rod；Sealing ring it is provided with between valve rod and valve body；Described butterfly plate is made up of non-metal body and sealing ring, and the excircle of non-metal body is embedded with sealing ring, and the external diameter of sealing ring matches with the internal diameter of body cavity.
In rotation hole on described valve body, being provided with bearing pin vertically arranged with valve rod, valve rod is provided with pin groove, and bearing pin is stuck in pin groove；Valve rod is through butterfly plate and butterfly plate can be driven freely rotatable, and valve rod passes through sealing ring and valve seal, and is moved axially by bearing pin restriction valve rod.
The non-metal body excircle of described butterfly plate is provided with inverted trapezoidal anti-taking off structure, sealing ring is placed in inverted trapezoidal anti-taking off structure, the A/F of inverted trapezoidal anti-taking off structure, less than the bottom width of inverted trapezoidal anti-taking off structure, to limit the displacement of sealing ring so that it is be difficult to abjection when rotating.
The non-metal body of described butterfly plate, front is circular, and side is dolioform.
The non-metal body of described butterfly plate and sealing ring can be Split type structure, it is also possible to are integrated casting and form, can combine in the following way between non-metal body and sealing ring, including: injection, double-material injection-molding, encapsulated, fastening etc..
The center of described non-metal body is provided with through hole, and valve rod extends there through, and through hole both sides are provided with rubber filling hole, sealing ring is elastomeric material, and the rubber in rubber filling hole is integrated with sealing ring, makes sealing ring be connected up and down, limit the upper and lower displacement of sealing ring so that it is be difficult to abjection.
The beneficial effects of the utility model: can be used for the Flow-rate adjustment of all caliber pipe, are particularly well-suited to small-bore pipeline Flow-rate adjustment, butterfly plate non-metallic material, it is easy to machine-shaping；When butterfly plate is opened, it is streamlined along water (flow) direction, with stationary flow, reduces crushing；Reduce production cost, reduce moment of torsion, and after death can the row's of rotating backward dirt at card.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is this utility model embodiment butterfly plate front schematic view；
Fig. 3 is this utility model embodiment butterfly plate side schematic view；
Fig. 4 is this utility model embodiment butterfly plate schematic top plan view；
Fig. 5 is this utility model embodiment butterfly plate A-A cross-sectional schematic；
In figure: valve body 1, butterfly plate 2, valve rod 3, sealing ring 4, bearing pin 5, non-metal body 6, sealing ring 7, rubber filling hole 8, inverted trapezoidal anti-taking off structure 9.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The structure of a kind of novel butterfly valve, comprises valve body 1, butterfly plate 2, valve rod 3 and sealing ring 4, and valve body 1 inner chamber is provided with butterfly plate 2, and butterfly plate 2 is provided with valve rod 3, and valve body 1 is provided with rotation hole, and valve rod 3 mates in the rotation hole on valve body 1, and butterfly plate 2 rotates together with valve rod 3；Sealing ring 4 it is provided with between valve rod 3 and valve body 1；Described butterfly plate 2 is made up of non-metal body 6 and sealing ring 7, and the excircle of non-metal body 6 is embedded with sealing ring 7, and the external diameter of sealing ring 7 matches with the internal diameter of valve body 1 inner chamber.
In rotation hole on described valve body 1, being provided with bearing pin 5 vertically arranged with valve rod 3, valve rod 3 is provided with pin groove, and bearing pin 5 is stuck in pin groove；Valve rod is through butterfly plate and butterfly plate can be driven freely rotatable, and valve rod passes through sealing ring and valve seal, and is moved axially by bearing pin restriction valve rod.
The non-metal body excircle of described butterfly plate is provided with inverted trapezoidal anti-taking off structure 9, sealing ring 7 is placed in inverted trapezoidal anti-taking off structure 9, the A/F of inverted trapezoidal anti-taking off structure 9, bottom width less than inverted trapezoidal anti-taking off structure 9, to limit the displacement of sealing ring so that it is be difficult to abjection when rotating.
The non-metal body 6 of described butterfly plate 2, front is circular, and side is dolioform.
The non-metal body 6 of described butterfly plate 2 and sealing ring 7 can be Split type structure, it is also possible to are integrated casting and form, can combine in the following way between non-metal body 6 and sealing ring 7, including: injection, double-material injection-molding, encapsulated, fastening etc..
The center of described non-metal body 6 is provided with through hole, and valve rod extends there through, and through hole both sides are provided with rubber filling hole 8, sealing ring 7 is elastomeric material, and the rubber in rubber filling hole 8 is integrated with sealing ring 7, makes sealing ring be connected up and down, limit the upper and lower displacement of sealing ring so that it is be difficult to abjection.
This utility model can substitute ball valve on small-bore pipeline, regulates flow, after ball valve uses for a long time in water, easily causes ball valve bite, and cannot get rid of voluntarily, if this utility model blocks after death, and can the row's of rotating backward dirt.
Claims (5)
1. the structure of a novel butterfly valve, it is characterized in that: comprise valve body (1), butterfly plate (2), valve rod (3) and sealing ring (4), valve body (1) inner chamber is provided with butterfly plate (2), butterfly plate (2) is provided with valve rod (3), valve body (1) is provided with rotation hole, in valve rod (3) coupling rotation hole on valve body (1), butterfly plate (2) rotates together with valve rod (3)；Sealing ring (4) it is provided with between valve rod (3) and valve body (1)；Described butterfly plate (2) is made up of non-metal body (6) and sealing ring (7), and the excircle of non-metal body (6) is embedded with sealing ring (7), and the external diameter of sealing ring (7) matches with the internal diameter of valve body (1) inner chamber.
The structure of a kind of novel butterfly valve the most according to claim 1, it is characterised in that: in the rotation hole on described valve body (1), being provided with and valve rod (3) vertically arranged bearing pin (5), valve rod (3) is provided with pin groove, and bearing pin (5) is stuck in pin groove.
The structure of a kind of novel butterfly valve the most according to claim 1 and 2, it is characterized in that: the non-metal body excircle of described butterfly plate is provided with inverted trapezoidal anti-taking off structure (9), sealing ring (7) is placed in inverted trapezoidal anti-taking off structure (9), the A/F of inverted trapezoidal anti-taking off structure (9), less than the bottom width of inverted trapezoidal anti-taking off structure (9).
The structure of a kind of novel butterfly valve the most according to claim 1 and 2, it is characterised in that: the non-metal body (6) of described butterfly plate (2), front is circular, and side is dolioform.
The structure of a kind of novel butterfly valve the most according to claim 1 and 2, it is characterized in that: the center of described non-metal body (6) is provided with through hole, valve rod extends there through, through hole both sides are provided with rubber filling hole (8), sealing ring (7) is elastomeric material, rubber in rubber filling hole (8) is integrated with sealing ring (7), and sealing ring is connected up and down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620298913.0U CN205479390U (en) | 2016-04-12 | 2016-04-12 | Novel structure of butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620298913.0U CN205479390U (en) | 2016-04-12 | 2016-04-12 | Novel structure of butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479390U true CN205479390U (en) | 2016-08-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620298913.0U Active CN205479390U (en) | 2016-04-12 | 2016-04-12 | Novel structure of butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479390U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228200A (en) * | 2017-05-23 | 2017-10-03 | 杨秀波 | A kind of adjustable apparatus of valve |
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
-
2016
- 2016-04-12 CN CN201620298913.0U patent/CN205479390U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228200A (en) * | 2017-05-23 | 2017-10-03 | 杨秀波 | A kind of adjustable apparatus of valve |
| CN108386553A (en) * | 2018-05-21 | 2018-08-10 | 南通升辉机械有限公司 | A kind of novel manual butterfly valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |