CN206093005U - Intermittent type style hard seal zero friction butterfly valve - Google Patents
Intermittent type style hard seal zero friction butterfly valve Download PDFInfo
- Publication number
- CN206093005U CN206093005U CN201621208313.7U CN201621208313U CN206093005U CN 206093005 U CN206093005 U CN 206093005U CN 201621208313 U CN201621208313 U CN 201621208313U CN 206093005 U CN206093005 U CN 206093005U
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- Prior art keywords
- valve
- butterfly
- moving
- sealing
- butterfly plate
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Abstract
The utility model relates to an intermittent type style hard seal zero friction butterfly valve, including drive arrangement, gland, lower cover, valve body, valve rod and butterfly plate, the last hand wheel that is equipped with of drive arrangement, valve rod pass the valve body, and gland and lower cover are installed to both ends about the valve body, pass the gland on the valve rod and be connected with drive arrangement, and the butterfly plate is passed to the valve rod lower part, this butterfly valve of its characterized in that still includes portable disk seat, portable disk seat sets up in the valve body for can follow the circular ring shaped structure that axial displacement was made to the valve body inner wall, installs the lateral body at the front end of valve body through the screw fastening, and the removal fit clearance is left in inserting the ring clearance of portable disk seat in the lateral body rear end between portable disk seat and the valve body and between portable disk seat and the lateral body, and all installs the sealing washer between portable disk seat and valve body and the lateral body, install the spring between the outer terminal surface of portable disk seat and lateral body.
Description
Technical field
This utility model is related to valve technology field, particularly a kind of batch (-type) hard-sealing zero friction butterfly valve.
Background technology
Existing hard seal butterfly valve generally includes valve body, valve rod, butterfly plate and valve seat.The inner circle of valve seat is cylindrical with sealing member
Constitute sealing pair.Under valve-closed state, make sealing ring that bullet to occur by the thrust of the radial compression and positive medium of butterfly plate
Property deformation, realize interference fit seal.Due to due to structure, when butterfly valve is opened and closed, friction between sealing pair, is always there is,
Increase the torque of opening/shutting valve, open and close speed and slow down, inevitably frequently open and close the accelerated wear test that can cause sealing surface, it is close
Sealing property declines, and ultimately results in valve (leakage) damage.For this purpose, someone have studied " a kind of linkage type butterfly valve " (referring to Chinese special
204239771 U of sharp CN), including valve body, valve rod, valve component and valve plate, it is characterized in：Also include by two support arms and two
The suspension bracket that support set is constituted, two support arms are connected with the internal chamber wall of valve body；Valve plate is by the valve plate body and center that outer peripheral face is taper surface
The connecting seat for being provided with through hole is constituted, and the mid portion of connecting seat is installed between two support arms of suspension bracket, and two end turns respectively
It is dynamic to be plugged in two support sets, part internal tooth is formed with the inner hole surface of connecting seat；Valve rod is passed through from the through hole of connecting seat, is set thereon
There is partial gear；Valve component is made up of valve seat, valve plate sealing ring and sealing ring gland, and the endoporus of valve seat insert is taper
Hole；Valve seat insert and backup ring are installed on the internal chamber wall of valve body；Also include two groups of intervals of connection valve rod and valve plate
Straight-line motion mechanism.Butterfly valve realizes the keying of valve by the rotation of valve plate and the translation of valve component, both auxiliary sections
There is no pivoting friction in position, so as to significantly reduce abrasion, improve the sealing of valve, make valve opening and closing compare province yet
Power.But this butterfly valve still suffers from following shortcoming：Partial gear requires higher manufacture and installation accuracy, relatively costly.
Utility model content
For the deficiencies in the prior art, the technical problem that this utility model is intended to solve is：Design a kind of batch (-type) to seal firmly
Zero friction butterfly valve.The valve seat of the butterfly valve can move axially (removable valve seat) along valve body, without friction between sealing pair, operational torque
It is low, open and close speed soon, and percussion is little, long service life, while manufacturing process is simple, it is with low cost.
This utility model solves the technical scheme of the technical problem：Design a kind of batch (-type) hard-sealing zero friction butterfly
Valve, including driving means, gland, lower cover, valve body, valve rod and butterfly plate, driving means are provided with handwheel, and valve rod passes through valve body, valve
Body upper and lower ends are provided with gland and lower cover, and valve rod upper end is connected through gland with driving means, and stem lower portion passes through butterfly plate；
It is characterized in that the butterfly valve also includes moving valve base, the moving valve base is the annulus that can be moved axially along valve interior wall work
Shape structure, is arranged in valve body, is provided with lateral body, lateral body rear end insertion moving valve base by screw fastening in the front end of valve body
Ring gap in, leave mobile fit clearance between moving valve base and valve body and between moving valve base and lateral body, and move
Sealing ring is mounted between dynamic formula valve seat and valve body and lateral body；Bullet is installed between the outer face of moving valve base and lateral body
Spring；
One end that the moving valve base is connected with butterfly plate is the conical surface, and butterfly plate edge is provided with sealing member, and sealing member is using close
Sealing pressing plate is fastened by bolts on butterfly plate, the cylindrical outward flange beyond butterfly plate of the sealing member, the periphery of sealing member
It is engaged with the conical surface of moving valve base, moving valve base is sealing surface with the side of valve body contact, it is during axial movement, portable
Central axis of the sealing surface of valve seat perpendicular to butterfly plate, sealing surface and the sealing member of moving valve base constitute the sealing pair of butterfly valve；
Rounded rectangles through hole is provided with the side of the butterfly plate；
The upper and lower end of the valve rod is provided with cam keyway, and each cam keyway is set with cam by flat key, described convex
The side of wheel is contacted with the inner face of moving valve base；Rounded rectangles keyway is provided with the middle part of valve rod, rounded rectangles keyway is by flat
Key is connected with rounded rectangles body；Rounded rectangles body is engaged with the rounded rectangles through hole on butterfly plate side.
Compared with prior art, the beneficial effect of this utility model butterfly valve is：
1. easily fabricated.On the premise of said function is realized, this utility model butterfly valve structure is simple and structure processing and
Assembling is easy, and the valve rod after improvement is easily manufactured, and simple to operate light, the manufacturing is easier；The transmission of rounded rectangles body takes
Instead of front partial gear transmission, existing technical scheme reduce the accuracy of manufacture on the premise of function is met.
2. life-span length.When this utility model butterfly valve is opened, the rotation of cam before this drives the axial movement of moving valve base,
Then it is exactly the rotation of the rotation drive butterfly plate of rounded rectangles body, realizes fully opening for butterfly plate, reach zero friction, run noise
Also reduce, so the shock resistance fatigue rupture ability of butterfly valve is greatly improved, the service life of valve can be made by current thousand of times
Bring up to hundreds of thousands.The mode of opening due to being completed by two processes, i.e. batch (-type).
3. good airproof performance.When butterfly valve cuts out, due to the effect of spring, moving valve base is pressed on butterfly plate by sealing member
On, realize hard sealing.
Description of the drawings
Fig. 1 is a kind of overall structure front-view schematic diagram of embodiment of this utility model butterfly valve；
Fig. 2 is the A-A generalized sections in a kind of embodiment Fig. 1 of this utility model butterfly valve；
Fig. 3 be in a kind of embodiment Fig. 2 of this utility model butterfly valve I at close-up schematic view；
Fig. 4 is the B-B generalized sections in a kind of embodiment Fig. 1 of this utility model butterfly valve.
Fig. 5 is the axonometric chart of moving valve base 17 in a kind of embodiment Fig. 1 of this utility model butterfly valve.
Fig. 6 is the axonometric chart of valve rod 6 in a kind of embodiment Fig. 1 of this utility model butterfly valve.
In figure：1st, driving means, 2, gland, 3, support, 4, upper pipe box, 5 valve bodies, 6, valve rod, 7, rounded rectangles body, 8, convex
Wheel, 9, lower pipe box, 10, lower cover, 11, lateral body, 12, spring, 13, flat key, 14, butterfly plate, 15, sealing member pressing plate, 16, sealing member,
17th, moving valve base, 18, sealing ring, 19, handwheel.
Specific embodiment
This utility model is further discussed below with reference to embodiment and its accompanying drawing, but it does not limit right of the present utility model
Require.
This utility model batch (-type) hard-sealing zero friction butterfly valve (abbreviation butterfly valve, referring to Fig. 1-6) includes driving means 1, pressure
Lid 2, lower cover 10, valve body 5, valve rod 6, butterfly plate 14 and moving valve base 17, driving means 1 are provided with handwheel 19, and valve rod 6 passes through valve
Body 5,5 upper and lower ends of valve body are provided with gland 2 and lower cover 10, and valve rod upper end is connected through gland 2 with driving means 1, and valve rod
Bottom passes through butterfly plate 14；The moving valve base 17 is arranged on valve to make the circular ring for moving axially along 5 inwall of valve body
In body 5, lateral body 11 is provided with by screw fastening in the front end of valve body 5, the ring gap of moving valve base 7 is inserted in lateral body rear end
In, mobile fit clearance is left between moving valve base 17 and valve body 5 and between moving valve base 17 and lateral body 11, to guarantee
When valve is opened and closed, sealing surface can be completely disengaged and be sealed, and pacifies between moving valve base 17 and valve body 5 and lateral body 11
Equipped with sealing ring 18；Spring 12 is installed between the outer face of moving valve base 17 and lateral body 11；
One end that the moving valve base 17 is connected with butterfly plate 14 is the conical surface, and 14 edge of butterfly plate is provided with sealing member 16, seals
Part 16 is fastened by bolts on butterfly plate 14 using sealing member pressing plate 15, can be easy for installation and removal, outside the sealing member 16
Outward flange of the circle beyond butterfly plate 14, the periphery of sealing member 16 are engaged with the conical surface of moving valve base 17, moving valve base 17
The side contacted with valve body 5 is sealing surface, during axial movement, the central shaft of the sealing surface of moving valve base 17 perpendicular to butterfly plate 14
Line, sealing surface and the sealing member 16 of moving valve base 17 constitute the sealing pair of butterfly valve；Round end is provided with the side of the butterfly plate 14
Rectangular through-hole；
The upper and lower end of the valve rod 6 (referring to Fig. 6) is provided with cam keyway, on the basis of valve rod axis, upper and lower convex
Wheel key way is arranged in 90 °, lays flat key, be cased with cam 8 (referring to Fig. 4), the side of the cam 8 herein on each cam keyway
Contact with the inner face of moving valve base 17；Rounded rectangles keyway is provided with the middle part of valve rod 6, in rounded rectangles keyway, flat key is laid
13, rounded rectangles body 7 is installed herein；Rounded rectangles body is engaged with the rounded rectangles through hole on 14 side of butterfly plate.The valve
The top of bar 6 is provided with the stuffing-box being enclosed on the outside of valve rod 6, and stuffing-box is built with filler, and is provided with the sleeve being pressed on filler
With gland 2, can prevent medium from revealing from valve rod.
The described filler that is further characterized by of the present utility model can be using asbestos packing or graphite packing or polytetrafluoro V
Type filler.
The side for being further characterized by the cam 8 of the present utility model is made up of arc surface and plane, is more saved
Moving valve base 17, during rotation, can be pushed open so as to separate with butterfly plate 14 by material.
The cross section for being further characterized by rounded rectangles body 7 of the present utility model is that two circular arcs and two straight lines are constituted
Centrosymmetric structure, after moving valve base 17 is pushed open by 19 rotational band moving cam 8 of handwheel, the rotation of rounded rectangles body will make
Butterfly plate 14 is rotated, and realizes the opening of butterfly plate.
The inner headed face (side being connected with butterfly plate 14) of this utility model moving valve base 17 is the conical surface, its manufacturing process letter
It is single, low cost, reliable operation.This utility model is provided with sealing with the binding face of valve body 5 and lateral body 11 in moving valve base 17
Circle 18, sealing ring 18 includes several groups of various sizes of single sealing rings, when they can guarantee that moving valve base 17 is moved, butterfly valve tool
There is good sealing property.The periphery of sealing member 16 using with the 17 inner headed face cone angle identical conical surface of moving valve base.It is unique
Moving valve base 17 structure can realize sealing surface without friction opening and closing, so as to substantially reduce the keying torque of butterfly valve,
The service life of butterfly valve is improve, while improve keying speed.
The left and right two ends of this utility model valve body 5 are provided with the flange perpendicular to 5 centrage of valve body, and the upper and lower end of valve body 5 is equal
It is provided with upper valve rod aperture and lower valve rod aperture that valve rod 6 is passed through；Valve rod 6 sequentially passes through upper valve rod aperture, lower valve rod from the top of valve body 5
Hole；The lower valve rod outer end of hole of valve body 5 is provided with lower pipe box 9, and lower flange, lower flange bolt and envelope are installed with lower pipe box 9
The lower cover 10 for closing connects, and the upper valve rod outer end of hole of valve body 5 is provided with pipe box 4, is installed with upper flange thereon, uses on upper flange
Bolt is provided with support 3.
The operation principle of this utility model butterfly valve is：
When butterfly valve is opened, handwheel 19 is rotated clockwise, valve rod 6 is realized turning clockwise, as cam 8 is cased with valve rod,
During valve rod rotates, compressed by spring 12 originally, between moving valve base 17 that sealing member 16 encapsulates and butterfly plate 14
Realize separating, during this of the disengaging valve body 5 of moving valve base 17, due to the drive of valve rod 6 is that rounded rectangles body 7 revolves
Turn, so this process butterfly plate 14 is without rotation；Next, at the intersection of the disc of rounded rectangles body and rectangular surfaces and butterfly plate
The disc of rounded rectangles through hole overlaps with the intersection of rectangular surfaces, and now valve rod 6 continues rotation, drives butterfly plate 14 to start rotation,
Open butterfly valve.
When butterfly valve cuts out, rotate counterclockwise handwheel 19,6 rotate counterclockwise of valve rod, the disc and rectangular surfaces of rounded rectangles body 7
Intersection at and the disc of rounded rectangles through hole of butterfly plate separate with the intersection of rectangular surfaces, the then weight at the intersection of opposite side
Close, this process realizes that butterfly valve tentatively cuts out, valve rod rotate counterclockwise again, cam 8 drive moving valve base 17 to be pressed into valve body
5, realize the closing of butterfly valve.
This utility model used " on ", D score, the orientation word such as "front", "rear" be a relative concept, be with institute
Orientation to Fig. 1 is foundation, wherein, 1 place direction of driving means is upper, under lower cover place direction is, 17 institute of moving valve base
It is front in direction, after 14 place direction of butterfly plate is, they are convenient just for the sake of statement, for distinguishing the phase of each part or direction
To position, orientation when this utility model butterfly valve is used is not represented.
This utility model is not addressed part and is applied to prior art.
Claims (3)
1. a kind of batch (-type) hard-sealing zero rubs butterfly valve, including driving means, gland, lower cover, valve body, valve rod and butterfly plate, drives
Device is provided with handwheel, and valve rod passes through valve body, valve body upper and lower ends to be provided with gland and lower cover, and valve rod upper end is through gland and drive
Dynamic device connection, and stem lower portion passes through butterfly plate；It is characterized in that the butterfly valve also includes moving valve base, the moving valve base
For the circular ring for moving axially can be made along valve interior wall, it is arranged in valve body, is pacified by screw fastening in the front end of valve body
Equipped with lateral body, in the ring gap of lateral body rear end insertion moving valve base, between moving valve base and valve body and moving valve base
Mobile fit clearance is left between lateral body, and between moving valve base and valve body and lateral body, is mounted on sealing ring；Moving
Spring is installed between the outer face of formula valve seat and lateral body；
One end that the moving valve base is connected with butterfly plate is the conical surface, and butterfly plate edge is provided with sealing member, and sealing member uses sealing member
Pressing plate is fastened by bolts on butterfly plate, the cylindrical outward flange beyond butterfly plate of the sealing member, periphery and the shifting of sealing member
The conical surface of dynamic formula valve seat is engaged, and moving valve base is sealing surface with the side of valve body contact, during axial movement, moving valve base
Sealing surface perpendicular to butterfly plate central axis, the sealing surface of moving valve base constitutes the sealing pair of butterfly valve with sealing member；It is described
Rounded rectangles through hole is provided with the side of butterfly plate；
The upper and lower end of the valve rod is provided with cam keyway, and each cam keyway is set with cam by flat key, the cam
Side is contacted with the inner face of moving valve base；Be provided with rounded rectangles keyway in the middle part of valve rod, rounded rectangles keyway by flat key with
Rounded rectangles body connects；Rounded rectangles body is engaged with the rounded rectangles through hole on butterfly plate side.
2. batch (-type) hard-sealing zero according to claim 1 rubs butterfly valve, it is characterised in that the side of the cam is by justifying
Cambered surface and plane are constituted.
3. batch (-type) hard-sealing zero according to claim 1 rubs butterfly valve, it is characterised in that the cross section of rounded rectangles body
For the centrosymmetric structure that two circular arcs and two straight lines are constituted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208313.7U CN206093005U (en) | 2016-10-25 | 2016-10-25 | Intermittent type style hard seal zero friction butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208313.7U CN206093005U (en) | 2016-10-25 | 2016-10-25 | Intermittent type style hard seal zero friction butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206093005U true CN206093005U (en) | 2017-04-12 |
Family
ID=58485968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621208313.7U Withdrawn - After Issue CN206093005U (en) | 2016-10-25 | 2016-10-25 | Intermittent type style hard seal zero friction butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206093005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246935A (en) * | 2016-10-25 | 2016-12-21 | 河北工业大学 | A kind of batch (-type) hard-sealing zero friction butterfly valve |
-
2016
- 2016-10-25 CN CN201621208313.7U patent/CN206093005U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246935A (en) * | 2016-10-25 | 2016-12-21 | 河北工业大学 | A kind of batch (-type) hard-sealing zero friction butterfly valve |
| CN106246935B (en) * | 2016-10-25 | 2018-05-25 | 河北工业大学 | A kind of intermittent hard-sealing zero friction butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170412 Effective date of abandoning: 20180525 |
|
| AV01 | Patent right actively abandoned |