CN205479388U - Bidirectional sealing butterfly valve - Google Patents
Bidirectional sealing butterfly valve Download PDFInfo
- Publication number
- CN205479388U CN205479388U CN201620255342.2U CN201620255342U CN205479388U CN 205479388 U CN205479388 U CN 205479388U CN 201620255342 U CN201620255342 U CN 201620255342U CN 205479388 U CN205479388 U CN 205479388U
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- China
- Prior art keywords
- valve
- valve body
- support
- butterfly plate
- butterfly
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Abstract
The utility model discloses a bidirectional sealing butterfly valve, which comprises the following components: a valve body, and a support, valve rod and worm gear case, the support setting just links firmly with the valve body above the valve body, the worm gear case is installed on the support, the valve rod passes support and valve body and all rotates with support and valve body to be connected, valve rod upper end and sector gear fixed connection, install the butterfly plate on the valve rod, the butterfly plate is located the valve body, be equipped with the unsteady seal structure of elasticity between one side of butterfly plate and valve body, seal structure is floated including the disk seat that floats to elasticity, packing ring and pendant collet, the disk seat floats, packing ring and pendant collet set gradually from inside to outside, the disk seat cover that floats is established outside the butterfly plate, it has the mounting groove to open on the packing ring, the mounting groove sets up and is being close to the disk seat one side of floating, be equipped with the spring in the mounting groove, the pendant collet is installed on the valve body, threaded connection has adjusting screw in the pendant collet. The utility model discloses both can hold to just flowing to pressure, and can bear opposite pressure again, sealing performance is good, can not take place to leak the phenomenon, uses safe and reliable.
Description
Technical field
This utility model belongs to valve technology field, is specifically related to a kind of bidirectional sealed butterfly valve.
Background technology
It is light that bidirectional sealed butterfly valve is mainly used in the metallurgy papermaking of petrochemical industry chemical fertilizer power station
The fields such as work, as the mechanism cutting off on pipeline and regulating, it is adaptable to media such as gas liquids, tool
There is the short flow resistance advantage such as little switch time.Bidirectional sealed butterfly valve as the control element on pipeline respectively
Particularly apply on big-diameter pipeline quite varied on kind of pipeline.Traditional bidirectional sealed butterfly valve is tied by it
Structure limits, and can only hold to just flowing to pressure, and reverse direction flow pressure exceedes certain value and can leak.And
During actually used, it be frequently present of positive pressure and buffer brake in pipeline suitable, or reversely press
Power is more than the situation of positive pressure.Therefore, traditional bidirectional sealed butterfly valve can not well adapt in mesh
Needed for preceding pipeline.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, it is provided that a kind of two-way close
Sealing butterfly valve, its simple in construction, modern design rationally and use easy and simple to handle, both can hold to just flowing to
Pressure, can bear again buffer brake, good seal performance, leakage phenomenon will not occur, use safety
Reliably.
For achieving the above object, the technical solution adopted in the utility model is: a kind of bidirectional sealed butterfly valve,
It is characterized in that: include that valve body, support, valve rod and worm gear case, described support are arranged on the upper of valve body
Side and being fixedly connected with the valve body, described worm gear case is fixedly mounted on support, and described valve rod passes support
All being rotationally connected with valve body and with support and valve body, the sector of worm gear case is stretched in the upper end of described valve rod
Fix in wheel bore and with described sector gear and be connected, described valve rod is provided with butterfly plate, described butterfly plate position
In valve body, it is provided with elastic floating between described butterfly plate and the side of valve body and seals structure, described bullet
Property floating sealing structure includes floating valve seat, packing ring and pendant collet, described floating valve seat, packing ring and four
Open loop sets gradually from inside to outside, and described floating valve seat is set in outside butterfly plate, and described packing ring has peace
Tankage, described mounting groove is positioned close to the side of floating valve seat, be provided with spring in described mounting groove,
Described pendant collet is arranged on valve body, and threaded in described pendant collet have for adjusting washer (disk) position
Adjust screw.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: it is provided with between described floating valve seat and butterfly plate
Sealing ring, the end of described butterfly plate is provided with the trim ring for compressing sealing ring, and described trim ring is by the
One bolt is fixing with butterfly plate to be connected.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: it is provided with between described floating valve seat and valve body
First O.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: arrange between top and the valve rod of described valve body
Upper sliding bearing and gland, described gland is had to be positioned at the top of sliding bearing, described gland and upper cunning
Being provided with multi-tiered compression packing layer between dynamic bearing, described gland is fixing even by the second bolt and valve body
Connect and by gland, multi-tiered compression packing layer is compressed, between described second bolt and gland, be provided with first
Pad.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: arrange between bottom and the valve rod of described valve body
Properties of journal bearing lubricated, the lower end of described valve body is had to be provided with end cap, between described properties of journal bearing lubricated and end cap
Being provided with divided ring, described end cap is fixedly connected with the valve body by screw.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: it is provided with second between described end cap and valve body
O.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: described support is solid with valve body by the 3rd bolt
Fixed connection, is provided with the second pad between described 3rd bolt and support；Described worm gear case passes through the 4th
Bolt is fixedly mounted on support, is provided with the 3rd pad between described 4th bolt and support.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: described butterfly plate is arranged on valve by multiple bearing pins
On bar.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: it is provided with anti-rotation between described support and valve body
Bearing pin.
Above-mentioned bidirectional sealed butterfly valve, it is characterised in that: the upper end of described valve rod is by key and described fan
Shape gear is fixing to be connected.
This utility model compared with prior art has the advantage that
1, this utility model simple in construction, reasonable in design and use easy to operate.
2, this utility model seals knot owing to being provided with elastic floating between butterfly plate and the side of valve body
Structure, floating valve seat can float in valve body, be provided with spring, packing ring, pendant collet outside floating valve seat
And pendant collet, flying height can be adjusted, during reverse direction flow pressurized, floating valve seat is pushed away by the pressure of medium self
To butterfly plate, spring force the most jointly acts on and pushes it against butterfly plate on floating valve seat, it is provided that enough sealings
Card of trying hard to keep reversely seals；When floating valve seat floats, it relies on the first O to protect with the sealing of valve body
Card；Therefore, both can hold to just flowing to pressure, can bear again buffer brake, good seal performance,
Leakage phenomenon will not occur, safe and reliable.
3, the bottom of this utility model valve body increases divided ring, end cap, the second O and multiple spiral shell
Nail, can prevent butterfly plate from making sealing surface impaired along the upper and lower play of valve rod axial direction.
4, it is provided with rotation prevention pin shaft between support of the present utility model and valve body, when preventing from opening and closing operation
Holder pivots.
Below by drawings and Examples, this utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged drawing at the A of Fig. 1.
Fig. 3 is enlarged drawing at the B of Fig. 1.
Description of reference numerals:
1 worm gear case；2 keys；3 supports；
4 the 4th bolts；5 the 3rd pads；6 second bolts；
7 first pads；8 the 3rd bolts；9 second pads；
10 glands；11 rotation prevention pin shafts；12 compressible filler layers；
The upper sliding bearing of 13-1；13-2 properties of journal bearing lubricated；14 valve bodies；
15 sealing rings；16 trim rings；17 first bolts；
18 valve rods；19 butterfly plates；20 bearing pins；
21 adjust screw；22 packing rings；23 springs；
24 floating valve seats；25 first O；26 pendant collets；
27 divided rings；28 second O；29 screws；
30 end caps.
Detailed description of the invention
As it is shown in figure 1, this utility model includes valve body 14, support 3, valve rod 18 and worm gear case 1,
Described support 3 is arranged on the top of valve body 14 and fixing with valve body 14 is connected, and described worm gear case 1 is consolidated
Dingan County is contained on support 3, described valve rod 18 through support 3 and valve body 14 and with support 3 and valve body
14 are all rotationally connected, in the sector wheel bore of worm gear case 1 is stretched in the upper end of described valve rod 18 and with institute
Stating the fixing connection of sector gear, described valve rod 18 is provided with butterfly plate 19, described butterfly plate 19 is positioned at valve
In body 14, it is provided with elastic floating between described butterfly plate 19 and the side of valve body 14 and seals structure,
Described elastic floating seals structure and includes floating valve seat 24, packing ring 22 and pendant collet 26, described floating
Valve seat 24, packing ring 22 and pendant collet 26 set gradually from inside to outside, and described floating valve seat 24 is sheathed
Outside butterfly plate 19, described packing ring 22 having mounting groove, described mounting groove is positioned close to float trap
The side of seat 24, is provided with spring 23 in described mounting groove, described pendant collet 26 is arranged on valve body
On 14, the threaded adjustment screw 21 having for adjusting washer (disk) 22 position in described pendant collet 26.
As it is shown in figure 1, be provided with sealing ring 15 between described floating valve seat 24 and butterfly plate 19, described
The end of butterfly plate 19 is provided with the trim ring 16 for compressing sealing ring 15, and described trim ring 16 is by the
One bolt 17 is fixing with butterfly plate 19 to be connected.
As in figure 2 it is shown, be provided with the first O 25 between described floating valve seat 24 and valve body 14.
As it is shown in figure 1, be provided with sliding bearing 13-1 between the top of described valve body 14 and valve rod 18
With gland 10, described gland 10 is positioned at the top of sliding bearing 13-1, and described gland 10 is with upper
Being provided with multi-tiered compression packing layer 12 between sliding bearing 13-1, described gland 10 is by the second bolt
6 fixing with valve body 14 be connected and compressed by multi-tiered compression packing layer 12 by gland 10, described second spiral shell
The first pad 7 it is provided with between bolt 6 and gland 10.Arrange between top and the valve rod 18 of valve body 14
Compressible filler layer 12, second bolt the 6, first pad 7 and gland 10 is had to compress compressible filler layer 12
Can guarantee that sealing, upper sliding bearing 13-1 can reduce switch moment.
As it is shown on figure 3, be provided with properties of journal bearing lubricated between the bottom of described valve body 14 and valve rod 18
13-2, the lower end of described valve body 14 is provided with end cap 30, described properties of journal bearing lubricated 13-2 and end cap 30
Between be provided with divided ring 27, described end cap 30 is fixed with valve body 14 by screw 29 and is connected.Institute
State and between end cap 30 and valve body 14, be provided with the second O 28.The bottom of valve body 14 increases split
Ring 27, end cap the 30, second O 28 and multiple screw 29, can prevent butterfly plate 19 along valve rod 18
The upper and lower play of axial direction and make sealing surface impaired.
As it is shown in figure 1, described support 3 is connected by the 3rd bolt 8 is fixing with valve body 14, described
The second pad 9 it is provided with between 3rd bolt 8 and support 3；Described worm gear case 1 is by the 4th bolt
4 are fixedly mounted on support 3, are provided with the 3rd pad 5 between described 4th bolt 4 and support 3.
As it is shown in figure 1, described butterfly plate 19 is arranged on valve rod 18 by multiple bearing pins 20.
As it is shown in figure 1, be provided with rotation prevention pin shaft 11 between described support 3 and valve body 14, prevent from opening
During closed operation, support 3 rotates.
As it is shown in figure 1, the upper end of described valve rod 18 is connected by key 2 and described sector gear are fixing.
Operation principle of the present utility model is: during use, by equal for the both sides of valve body 14 and pipeline welding,
The making and truncation of butterfly valve is to be realized by 90 degree of spinning balls 10, clockwise or counter-clockwise 90
The handwheel that degree rotates on worm gear case 1 can open or cut out butterfly valve.Due at butterfly plate 19 and valve body
Being provided with elastic floating between the side of 14 and seal structure, floating valve seat 24 can float in valve body 14,
It is provided with spring 23, packing ring 22, pendant collet 26 and pendant collet 26 outside floating valve seat 24, can adjust
Whole flying height, during reverse direction flow pressurized, the pressure of medium self pushes floating valve seat 24 to butterfly plate 19,
Spring 23 power the most jointly acts on and pushes it against butterfly plate 19 on floating valve seat 24, it is provided that enough sealings
Card of trying hard to keep reversely seals；When floating valve seat 24 floats, it relies on an O type with the sealing of valve body 14
Circle 25 ensures.The sealing surface that floating valve seat 24 is formed with butterfly plate 19 is three eccentricity structure, when just
When pressurized, sealing ring 15 is tightly pressed towards floating valve seat 24 and ensures to seal.
The above, be only preferred embodiment of the present utility model, not makees this utility model any
Limit, every according to this utility model technical spirit, above example is made any simple modification,
Change and equivalent structure transformation, all still fall within the protection domain of technical solutions of the utility model.
Claims (10)
1. a bidirectional sealed butterfly valve, it is characterised in that: include valve body (14), support (3),
Valve rod (18) and worm gear case (1), described support (3) be arranged on valve body (14) top and with
Valve body (14) is fixing to be connected, and described worm gear case (1) is fixedly mounted on support (3), described valve
Bar (18) passes support (3) and valve body (14) and all rotates with support (3) and valve body (14)
Connect, in the sector wheel bore of worm gear case (1) is stretched in the upper end of described valve rod (18) and with described
Sector gear is fixing to be connected, and described valve rod (18) is provided with butterfly plate (19), described butterfly plate (19)
It is positioned at valve body (14), between the side of described butterfly plate (19) and valve body (14), is provided with elasticity
Floating sealing structure, described elastic floating seals structure and includes floating valve seat (24), packing ring (22)
With pendant collet (26), described floating valve seat (24), packing ring (22) and pendant collet (26) are by interior
Outwards setting gradually, described floating valve seat (24) is set in butterfly plate (19) outward, described packing ring (22)
On have mounting groove, described mounting groove is positioned close to the side of floating valve seat (24), described installation
Being provided with spring (23) in groove, described pendant collet (26) is arranged on valve body (14), and described four
Open loop (26) is the most threaded the adjustment screw (21) for adjusting washer (disk) (22) position.
2. according to the bidirectional sealed butterfly valve described in claim 1, it is characterised in that: described float trap
It is provided with sealing ring (15), the end of described butterfly plate (19) between seat (24) and butterfly plate (19)
Being provided with the trim ring (16) for compressing sealing ring (15), described trim ring (16) passes through the first spiral shell
Bolt (17) is fixing with butterfly plate (19) to be connected.
3. according to the bidirectional sealed butterfly valve described in claim 2, it is characterised in that: described float trap
It is provided with the first O (25) between seat (24) and valve body (14).
4. according to the bidirectional sealed butterfly valve described in claim 3, it is characterised in that: described valve body (14)
Top and valve rod (18) between be provided with sliding bearing (13-1) and gland (10), described
Gland (10) is positioned at the top of sliding bearing (13-1), described gland (10) and upper sliding axle
Holding and be provided with multi-tiered compression packing layer (12) between (13-1), described gland (10) passes through second
Bolt (6) is fixing with valve body (14) to be connected and by gland (10) by multi-tiered compression packing layer (12)
Compress, between described second bolt (6) and gland (10), be provided with the first pad (7).
5. according to the bidirectional sealed butterfly valve described in claim 3 or 4, it is characterised in that: described valve
It is provided with properties of journal bearing lubricated (13-2), described valve body between bottom and the valve rod (18) of body (14)
(14) lower end is provided with end cap (30), described properties of journal bearing lubricated (13-2) and end cap (30)
Between be provided with divided ring (27), described end cap (30) is by screw (29) and valve body (14)
Fixing connection.
6. according to the bidirectional sealed butterfly valve described in claim 5, it is characterised in that: described end cap (30)
And it is provided with the second O (28) between valve body (14).
7. according to the bidirectional sealed butterfly valve described in claim 4, it is characterised in that: described support (3)
It is connected by the 3rd bolt (8) and valve body (14) are fixing, described 3rd bolt (8) and support (3)
Between be provided with the second pad (9)；Described worm gear case (1) is by the fixing peace of the 4th bolt (4)
It is contained on support (3), between described 4th bolt (4) and support (3), is provided with the 3rd pad
(5)。
8., according to the bidirectional sealed butterfly valve described in any claim in claim 1-4, its feature exists
In: described butterfly plate (19) is arranged on valve rod (18) by multiple bearing pins (20).
9., according to the bidirectional sealed butterfly valve described in any claim in claim 1-4, its feature exists
In: it is provided with rotation prevention pin shaft (11) between described support (3) and valve body (14).
10. according to the bidirectional sealed butterfly valve described in any claim in claim 1-4, its feature
It is: the upper end of described valve rod (18) is connected by key (2) and described sector gear are fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255342.2U CN205479388U (en) | 2016-03-30 | 2016-03-30 | Bidirectional sealing butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620255342.2U CN205479388U (en) | 2016-03-30 | 2016-03-30 | Bidirectional sealing butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205479388U true CN205479388U (en) | 2016-08-17 |
Family
ID=56648825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620255342.2U Active CN205479388U (en) | 2016-03-30 | 2016-03-30 | Bidirectional sealing butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205479388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823281A (en) * | 2023-02-21 | 2023-03-21 | 自贡新比隆阀门有限公司 | Sliding double-plate ball valve |
-
2016
- 2016-03-30 CN CN201620255342.2U patent/CN205479388U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115823281A (en) * | 2023-02-21 | 2023-03-21 | 自贡新比隆阀门有限公司 | Sliding double-plate ball valve |
| CN115823281B (en) * | 2023-02-21 | 2023-06-20 | 自贡新比隆阀门有限公司 | Sliding double-plate ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |