CN110513494A - Adjustable type eccentric-butterfly-valve - Google Patents
Adjustable type eccentric-butterfly-valve Download PDFInfo
- Publication number
- CN110513494A CN110513494A CN201910862056.0A CN201910862056A CN110513494A CN 110513494 A CN110513494 A CN 110513494A CN 201910862056 A CN201910862056 A CN 201910862056A CN 110513494 A CN110513494 A CN 110513494A
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- Prior art keywords
- valve
- valve rod
- butterfly
- plate
- butterfly plate
- Prior art date
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- 238000007789 sealing Methods 0.000 claims abstract description 52
- 230000007246 mechanism Effects 0.000 claims abstract description 49
- 239000000945 filler Substances 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 9
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 210000002683 foot Anatomy 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical group [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008439 repair process Effects 0.000 description 5
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 4
- 238000011105 stabilization Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/226—Shaping or arrangements of the sealing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
Abstract
The present invention provides a kind of adjustable type eccentric-butterfly-valves, including valve body, valve rod, valve seat and butterfly plate, the upper and lower ends of the valve rod form eccentric rod to the same side deviation, twist mechanism is transversely equipped in the middle part of the joint face of butterfly plate, twist mechanism is symmetrically arranged with two eccentric adjustable mechanisms in two sides up and down, twist mechanism includes rocking bar and torsional spring, eccentric adjustable mechanism includes sliding block, top plate, bottom plate and spring, two sliding blocks are clamped respectively in the middle part of valve rod, when leading to poorly sealed close because of butterfly plate or the prooving of valve seat, butterfly plate, which turns to after pass is put down, continues rotation valve rod, opposite end eccentric rotary in the middle part of valve rod, eccentric adjustable mechanism and twist mechanism movement, keep butterfly plate close to valve seat direction, the oblique sealing surface of butterfly plate outer circle squeezes the oblique sealing surface of valve seat inner circle, increase seal pressure, improve leakproofness.Sealing between butterfly valve butterfly plate and valve seat of the present invention is adjustable, and after there is abrasion, rotation valve rod just can realize sealing again, no replacement is required butterfly valve or maintenance, effectively save cost.
Description
Technical field
The invention belongs to butterfly valve technical fields, and in particular to a kind of adjustable type eccentric-butterfly-valve.
Background technique
Butterfly valve is called flap valve, is a kind of simple regulating valve of structure, can be used for the switch control of low pressure pipeline fluid
Butterfly valve is that butterfly plate is disk, makes 90 ° of butterfly plate reciprocating rotating or so to open, close or adjust fluid flow around valve rod rotation
A kind of valve.Butterfly valve is not only simple in structure, is small in size, is light-weight, material consumption saves, installation dimension is small, driving moment is small, operation
It is easy, rapid, and can also have good flow regulating function simultaneously and close sealing characteristics, it is to develop in recent ten years
One of most fast valve kind.
After abrasion occur in the butterfly plate sealing surface or sealing surface of seat of existing butterfly valve, butterfly plate is closed to put down and still cannot effectively be sealed, butterfly
Valve is easy to appear fluid leakage, therefore, butterfly valve is caused to scrap or need replacing butterfly plate or valve seat, leads to replacement cost height, maintenance
It is complicated.
Summary of the invention
In view of the deficienciess of the prior art, the present invention proposes that a kind of adjustable type eccentric-butterfly-valve, the valve rod of the butterfly valve are inclined
Mandrels stem, when leading to poorly sealed close because of butterfly plate or the prooving of valve seat, butterfly plate turn to pass it is flat after continue rotation valve rod, valve rod
Middle part is with respect to valve rod both ends eccentric rotary, to push butterfly plate close to valve seat direction, butterfly plate sealing surface squeezes sealing surface of seat,
Increase seal pressure prevents fluid from leaking to improve leakproofness, and the sealing between the butterfly plate and valve seat of the butterfly valve is adjustable, is not necessarily to
Replacement butterfly valve repairs, effectively save cost.
The invention is realized by the following technical scheme:
A kind of adjustable type eccentric-butterfly-valve, including valve body, valve rod, valve seat and butterfly plate；The upper and lower ends of the valve rod are to the same side
Deviation forms eccentric rod, and the upper and lower ends of valve rod are rotatablely connected with valve body, and the valve seat is fixedly installed in valve inner, institute
The one side for stating butterfly plate is sealing surface, and another side is joint face, and the sealing surface peripheral side of butterfly plate is equipped with the oblique sealing surface of outer circle, described
Valve seat is equipped with the oblique sealing surface of inner circle, and butterfly plate closes the usually oblique sealing of inner circle of the oblique sealing surface of the outer circle of butterfly plate and valve seat
Face offsets, valve inner runner, block fluid flowing is truncated；
Twist mechanism is transversely equipped in the middle part of the joint face of the butterfly plate, two sides are symmetrically arranged with two eccentric tune to twist mechanism up and down
Mechanism is saved, the twist mechanism includes rocking bar and torsional spring, and the rocking bar is vertical with valve rod and one end and the valve rod fixation company of rocking bar
It connects, torsional spring is set on valve rod, and torque structure is formed between torsional spring, butterfly plate and rocking bar three by the end of the rocking bar other end and butterfly
Plate offsets, and can ensure that the stabilization between valve rod and butterfly plate, and fluid flowing causes butterfly plate to shake when preventing butterfly plate from opening, valve rod rotation
It is closed to butterfly plate during putting down, under the action of the torsion spring, rocking bar offsets with butterfly plate always far from valve rod one end, the eccentric adjusting
Mechanism includes sliding block, top plate and bottom plate and spring, and the sliding block includes upper clamp plate and lower clamp plate, is set between upper clamp plate and lower clamp plate
There is the circular hole for being easily installed valve rod, specifically, the contact surface of upper clamp plate and lower clamp plate is equipped with arc groove, two arc grooves
Circular hole is formed, valve rod is equipped with annular groove, and upper clamp plate and lower clamp plate are connected at the annular groove of valve rod, upper clamp plate and lower folder
It is fixedly connected between plate by multiple screws, specifically, upper clamp plate is equipped with multiple countersunk head through-holes, lower clamp plate is equipped with and multiple countersunk heads
The one-to-one threaded hole of through-hole, is easily installed screw, the rotation of valve rod energy opposing slider, and the top plate is fixed by multiple screws
It is installed on the upper end of bottom plate, specifically, top plate is equipped with multiple countersunk head through-holes, bottom plate is equipped with one-to-one with multiple countersunk head through-holes
Threaded hole is easily installed screw, and rectangular sliding slot is equipped between top plate and bottom plate, specifically, the lower end surface of top plate and bottom plate is upper
End face is equipped with direction groove, and two square groove group squarely sliding slots, sliding block and spring are mounted in rectangular sliding slot, sliding
Block can laterally move in rectangular sliding slot, and right side wall surface of the both ends of spring respectively with sliding block right side and rectangular sliding slot is fixed
Connection, the bottom plate are fixedly connected by multiple screws with the joint face of butterfly plate, specifically, bottom plate is equipped with multiple countersunk head through-holes,
Butterfly plate be equipped with multiple one-to-one threaded holes of countersunk head through-hole, be easily installed screw, the sliding block point of two eccentric adjustable mechanisms
Not Jia Chi valve rod middle part；When butterfly plate in the open state, under the action of the torsion spring, rocking bar far from valve rod one end always with
Butterfly plate offsets, and when butterfly valve will close flat butterfly plate truncation runner, the both ends of valve rod are rotated relative to valve body, and the middle part of valve rod drives butterfly plate
Rotation, until butterfly plate, which closes, puts down and be truncated runner, the oblique sealing surface of inner circle of the oblique sealing surface of the outer circle of butterfly plate and valve seat offsets, should
Butterfly valve is in close state, the central axes at the middle part of valve rod and the vertical centerline of butterfly plate be generally aligned in the same plane and the plane with
The joint face of butterfly plate is vertical, when small fluid leakage still occurs in the butterfly plate Guan Pinghou of the butterfly valve, continues to rotate valve rod, valve rod
Middle part it is eccentric with respect to the both ends of valve rod, when the both ends rotation of valve rod, the middle part deflection of valve rod and, butterfly plate close to valve seat direction
All sides offset with valve seat, rotate butterfly plate not, triggering eccentric adjustable mechanism movement when the rotation of the middle part of valve rod, in valve rod
The rotation of portion's opposing slider, spring-compressed, butterfly plate are moved to the left, meanwhile, the middle part of valve rod drives rocking bar rotation, and rocking bar is far from valve rod
One end is drifted apart from butterfly plate, and under the effect of torsion spring, and the torque between rocking bar and butterfly plate increases, and in eccentric adjustable mechanism, is turned round
In the middle part of rotation mechanism and valve rod under deflecting action, butterfly plate is close to valve seat direction, and the oblique sealing surface of the outer circle of butterfly plate squeezes valve seat
The oblique sealing surface of inner circle, increase seal pressure prevents fluid from leaking to improve leakproofness, when rotation valve rod is to open in valve body
When portion's runner, under the reply twisting resistance effect of torsional spring, butterfly plate is resetted with respect to rotation in the middle part of valve rod, rocking bar far from valve rod one end and
Butterfly plate offsets, it is ensured that the stabilization between valve rod and butterfly plate, fluid flowing causes butterfly plate to shake when preventing butterfly plate from opening；The butterfly valve
Sealing between butterfly plate and valve seat is adjustable, after there is abrasion, no replacement is required butterfly valve or repairs, can effectively save cost.
Further, the upper through-hole and lower through-hole of interspersed valve rod are respectively provided on the valve body, upper through-hole and lower logical
The axial line in hole deviates the vertical centerline of valve body, forms bias, and the lower end insertion lower through-hole of valve rod is simultaneously rotatablely connected, valve rod
Upper end pass through and upper through-hole and be rotatablely connected, when installation, the lower end of valve rod can be inserted into valve body from upper through-hole until insertion is lower leads to
Hole, when disassembly, the upper end of valve rod can extract out from lower through-hole, keep the installation and removal of valve rod convenient.
Further, Upper shaft sleeve is equipped in the upper through-hole, and Upper shaft sleeve is set on valve rod, outside one end of upper through-hole
Equipped with upper press cover, upper press cover is set on valve rod, and is fixedly connected with valve body by multiple screws, specifically, upper press cover is equipped with
Multiple countersunk head through-holes, valve body be equipped with multiple one-to-one threaded holes of countersunk head through-hole, be easily installed screw, upper pressure in upper through-hole
Filling is equipped with upper valve rod filler between lid and Upper shaft sleeve, and Upper shaft sleeve is avoided that between valve rod and valve body and rubs, upper valve rod filler energy
Through-hole in sealing, prevents fluid from leaking, and upper press cover can be such that valve stem seal installs, and Lower shaft sleeve, and lower axle are equipped in the lower through-hole
It is set on valve rod, outside one end of lower through-hole is equipped with lower cover, and lower cover blocks lower through-hole, and passes through multiple spiral shells with valve body
Nail is fixedly connected, and is arranged with multiple countersunk head through-holes specifically, pushing, valve body is equipped with and multiple one-to-one screw threads of countersunk head through-hole
Hole is easily installed screw, fills between lower cover and Lower shaft sleeve in lower through-hole and be equipped with lower valve rod filler, Lower shaft sleeve is avoided that valve rod
It rubs between valve body, lower valve rod filler can seal lower through-hole, prevent fluid from leaking, and lower cover can block lower through-hole.
Further, the end face of the Upper shaft sleeve and the outside one end of Lower shaft sleeve is equipped with threaded hole, convenient for passing through connection spiral shell
Bar is to dismantle taking-up axle sleeve.
Further, the twist mechanism further includes pedestal and connecting rod, and there are two the pedestal is set, two pedestals are along rocking bar
It is symmetrical arranged and passes through multiple screws respectively with the joint face of butterfly plate and be fixedly connected, specifically, pedestal is logical equipped with multiple countersunk heads
Hole, butterfly plate be equipped with multiple one-to-one threaded holes of countersunk head through-hole, be easily installed screw, connecting rod rest be set to two pedestals it
Between, connecting rod is parallel with valve rod and is located at the left side of valve rod, and the torsional spring is torsion spring, and the medium support of torsional spring is hooked on rocking bar
Far from valve rod one end, two foots of torsional spring are hooked on connecting rod, so as to form torque structure, in no external force
Under, rocking bar is pressed to butterfly plate by the medium support of torsional spring, and rocking bar is made to offset far from valve rod one end with butterfly plate, and butterfly plate continues after closing
When rotation valve rod, rocking bar is rotated with valve rod, and all sides and the valve seat of butterfly plate offset, and rotates butterfly plate not, so that rocking bar is far from valve
Bar one end is drifted apart from butterfly plate, and the torque between rocking bar and butterfly plate increases, and when butterfly plate is opened, is acted in torsional spring twisting resistance
Under, rocking bar resets, and rocking bar offsets far from valve rod one end with butterfly plate, it is ensured that the stabilization between valve rod and butterfly plate prevents butterfly plate from opening
Shi Liuti flowing causes butterfly plate to shake.
Further, it is arranged with clip on the valve rod, clip includes upper cuff and lower cuff, upper cuff and lower cuff
Left and right ends pass through multiple screws respectively and are fixedly connected, specifically, upper cuff be equipped with multiple countersunk head through-holes, lower cuff be equipped with it is more
A one-to-one threaded hole of countersunk head through-hole is easily installed screw, is equipped with anti-rotation pin key between cuff under valve rod and upper cuff,
One end of rocking bar is fixedly connected with one end of lower cuff, specifically, rocking bar and lower cuff are integrally formed, valve rod can pass through shell ring
Shake bar rotation.
Further, the runner inner wall of the valve body is fixed with guide pile, specifically, guide pile is fixed by welding in
Runner inner wall, when rotation valve rod is to drive butterfly plate to rotate, until butterfly plate closes when the joint face week side of butterfly plate offsets with guide pile
Put down and be truncated runner, the oblique sealing surface of inner circle of the oblique sealing surface of the outer circle of butterfly plate and valve seat offsets, which, which is in, closes shape
State continues to rotate valve rod, the middle part of valve rod is with respect to valve rod when small fluid leakage still occurs in the butterfly plate Guan Pinghou of the butterfly valve
Both ends it is eccentric, when the both ends rotation of valve rod, the middle part deflection of valve rod is simultaneously close to valve seat direction, and the middle part of valve rod is triggered eccentric
Regulating mechanism movement, the middle part opposing slider rotation of valve rod, spring-compressed, butterfly plate are moved to the left, and guide pile resists the company of butterfly plate
Junction week side, prevent butterfly plate from deflecting, meanwhile, the middle part of valve rod drives rocking bar rotation, rocking bar far from valve rod one end and butterfly plate by
It gradually separates, and under the effect of torsion spring, the torque between rocking bar and butterfly plate increases, in eccentric adjustable mechanism, twist mechanism and valve rod
Under the deflecting action of middle part, butterfly plate is close to valve seat direction, and the oblique sealing surface of the outer circle of butterfly plate squeezes the oblique sealing of inner circle of valve seat
Face, increase seal pressure prevents fluid from leaking to improve leakproofness, when rotation valve rod is to open valve inner runner, is turning round
Under the reply twisting resistance effect of spring, butterfly plate rotation in the middle part of valve rod resets.
Further, the joint face of the butterfly plate is equipped with end cap, and all sides of end cap and all sides of butterfly plate pass through several
Screw is fastenedly connected, specifically, all sides of end cap are equipped with multiple countersunk head through-holes, butterfly plate is equipped with a pair of with multiple countersunk head through-holes one
The threaded hole answered is easily installed screw, and end cap is in non-regular arc spherical surface, can cover valve rod, eccentric adjustable mechanism and torsion
Rotation mechanism can reduce fluid and wash away to eccentric adjustable mechanism and twist mechanism.
Further, the material of the valve seat and butterfly plate is tungsten carbide, and whole high temperature resistant, wear-resisting property are preferable.
As shown from the above technical solution, a kind of adjustable type eccentric-butterfly-valve provided by the invention, beneficial effect are: the butterfly valve
When leading to poorly sealed close because of butterfly plate or the prooving of valve seat, is turned to after pass is put down in butterfly plate and continue rotation valve rod, the middle part phase of valve rod
To valve rod both ends eccentric rotary, to trigger eccentric adjustable mechanism and twist mechanism movement, keep butterfly plate close to valve seat direction, butterfly
The oblique sealing surface of plate outer circle squeezes the oblique sealing surface of valve seat inner circle, and increase seal pressure prevents fluid from seeping to improve leakproofness
Leakage, the sealing between the butterfly plate and valve seat of the butterfly valve is adjustable, and after there is abrasion, rotation valve rod just can realize sealing again, be not necessarily to
Replacement butterfly valve repairs, effectively save cost.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, similar element
Or part is generally identified by similar appended drawing reference.In attached drawing, each element or part might not be drawn according to actual ratio.
Fig. 1 is the present invention along valve body radial section structural schematic diagram (butterfly plate closes flat).
Fig. 2 is the present invention along valve body axial section structural schematic diagram (butterfly plate opening).
Fig. 3 is butterfly plate structural schematic diagram of the invention.
Fig. 4 is the direction A-A partial structural diagram in Fig. 3 of the present invention.
Fig. 5 is the direction B-B partial structural diagram in Fig. 3 of the present invention.
In attached drawing: 1- valve body, 2- valve rod, 3- valve seat, the oblique sealing surface of 31- inner circle, 4- butterfly plate, the oblique sealing of 41- outer circle
Face, 5- twist mechanism, 51- rocking bar, 52- torsional spring, 53- pedestal, 54- connecting rod, 55- clip, 56- anti-rotation pin key, 6- eccentric adjusting
Mechanism, 61- sliding block, 62- top plate, 63- bottom plate, 64- spring, 71- Upper shaft sleeve, 72- upper press cover, 73- upper valve rod filler, under 74-
Axle sleeve, 75- lower cover, 76- lower valve rod filler, 8- guide pile, 9- end cap.
Specific embodiment
It is described in detail below in conjunction with embodiment of the attached drawing to technical solution of the present invention.Following embodiment is only used for
Clearly illustrate technical solution of the present invention, therefore be only used as example, and cannot be used as a limitation and limit protection model of the invention
It encloses.
In the description of the present application, it is to be understood that term " on ", "lower", "left", "right", "top", "bottom", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.
As shown in Figures 1 to 5, a kind of adjustable type eccentric-butterfly-valve, including valve body 1, valve rod 2, valve seat 3 and butterfly plate 4；The valve
The upper and lower ends of bar 2 form eccentric rod to the same side deviation, and the upper and lower ends of valve rod 2 are rotatablely connected with valve body 1, described
Valve seat 3 is fixedly installed in inside valve body 1, and the one side of the butterfly plate 4 is sealing surface, and another side is joint face, the sealing surface of butterfly plate 4
Peripheral side is equipped with the oblique sealing surface 41 of outer circle, and the valve seat 3 is equipped with the oblique sealing surface 31 of inner circle, and butterfly plate 4 closes usually, butterfly plate 4
The oblique sealing surface 41 of outer circle and the oblique sealing surface 31 of inner circle of valve seat 3 offset, 1 inner flow passage of valve body, block fluid is truncated
Flowing；Twist mechanism 5 is transversely equipped in the middle part of the joint face of the butterfly plate 4, about 5 two sides of twist mechanism are symmetrically arranged with two partially
Heart regulating mechanism 6, the twist mechanism 5 include rocking bar 51, torsional spring 52, pedestal 53 and connecting rod 54, and the rocking bar 51 hangs down with valve rod 2
Straight and rocking bar 51 one end is fixedly connected with valve rod 2, and there are two the pedestal 53 is set, two pedestals 53 are arranged symmetrically along rocking bar 51
And pass through multiple screws respectively with the joint face of butterfly plate 4 and be fixedly connected, connecting rod 54 is set up between two pedestals 53, connecting rod 54
Left side that is parallel with valve rod 2 and being located at valve rod 2, the torsional spring 52 is torsion spring 52, and torsional spring 52 is set on valve rod 2, torsional spring 52
Medium support be hooked on rocking bar 51 far from 2 one end of valve rod, two foots of torsional spring 52 are hooked on connecting rod 54, with
This forms torque structure, and under no external force, rocking bar 51 is pressed to butterfly plate 4 by the medium support of torsional spring 52, and keeps rocking bar 51 remote
It offsets from 2 one end of valve rod with butterfly plate 4, closes butterfly valve and 4 Guan Pinghou of butterfly plate, when rocking bar 51 is continued to rotate with valve rod 2, rocking bar 51 is remote
It is drifted apart from from 2 one end of valve rod with butterfly plate 4, the torque between rocking bar 51 and butterfly plate 4 increases, and when butterfly plate 4 is opened, turns round in torsional spring 52
Turn under power effect, rocking bar 51 resets, and rocking bar 51 offsets far from 2 one end of valve rod with butterfly plate 4, it is ensured that steady between valve rod 2 and butterfly plate 4
Fixed, fluid flowing causes butterfly plate 4 to shake when preventing butterfly plate 4 from opening, and the eccentric adjustable mechanism 6 includes sliding block 61, top plate 62, bottom
Plate 63 and spring 64, the sliding block 61 include upper clamp plate and lower clamp plate, are equipped between upper clamp plate and lower clamp plate and are easily installed valve rod 2
Circular hole, specifically, the contact surface of upper clamp plate and lower clamp plate is equipped with arc groove, two arc grooves form circular holes, valve rod 2
It is equipped with annular groove, upper clamp plate and lower clamp plate are connected at the annular groove of valve rod 2, by more between upper clamp plate and lower clamp plate
A screw is fixedly connected, and 2 energy opposing slider 61 of valve rod rotates, and the top plate 62 is fixedly installed in bottom plate 63 by multiple screws
Upper end is equipped with rectangular sliding slot, specifically, the lower end surface of top plate 62 and the upper surface of bottom plate 63 are all provided between top plate 62 and bottom plate 63
There is direction groove, and two square groove group squarely sliding slots, sliding block 61 and spring 64 are mounted in rectangular sliding slot, sliding block 61
It can be laterally moved in rectangular sliding slot, the both ends of spring 64 are solid with the right side wall surface of 61 right side of sliding block and rectangular sliding slot respectively
Fixed connection, the bottom plate 63 are fixedly connected by multiple screws with the joint face of butterfly plate 4, the sliding block of two eccentric adjustable mechanisms 6
61 clamp the middle part of valve rod 2 respectively, and the runner inner wall of the valve body 1 is fixed with guide pile 8, specifically, guide pile 8 passes through weldering
It connects and is fixed on runner inner wall；The butterfly valve turns to Guan Pinghou in butterfly plate 4 because butterfly plate 4 or valve seat 3 are worn when leading to poorly sealed close
Valve rod 2 is continued to rotate, the middle part of valve rod 2 is with respect to 2 both ends eccentric rotary of valve rod, to trigger eccentric adjustable mechanism 6 and twist machine
Structure 5 keeps butterfly plate 4 close to 3 direction of valve seat, and the oblique sealing surface 41 of 4 outer circle of butterfly plate squeezes the oblique sealing surface 31 of 3 inner circle of valve seat, increases
Big seal pressure prevents fluid from leaking to improve leakproofness, and the sealing between the butterfly plate 4 and valve seat 3 of the butterfly valve is adjustable, occurs
After abrasion, rotation valve rod just can realize sealing again, no replacement is required butterfly valve or repair, effectively save cost.
In the present embodiment, be respectively provided with the upper through-hole and lower through-hole of interspersed valve rod 2 on the valve body 1, upper through-hole and
The axial line of lower through-hole deviates the vertical centerline of valve body 1, forms bias, and lower through-hole and the company of rotation are inserted into the lower end of valve rod 2
It connects, the upper end of valve rod 2 passes through upper through-hole and is rotatablely connected, and when installation, the lower end of valve rod 2 can be inserted into straight in valve body 1 from upper through-hole
To insertion lower through-hole, when disassembly, the upper end of valve rod 2 can extract from lower through-hole, facilitate the installation and removal of valve rod 2.
In the present embodiment, Upper shaft sleeve 71 is equipped in the upper through-hole, and Upper shaft sleeve 71 is set on valve rod 2, upper through-hole
Outside one end is equipped with upper press cover 72, and upper press cover 72 is set on valve rod 2, and is fixedly connected with valve body 1 by multiple screws, upper logical
Filling is equipped with upper valve rod filler 73 between upper press cover 72 and Upper shaft sleeve 71 in hole, and Upper shaft sleeve 71 is avoided that between valve rod 2 and valve body 1
Friction, upper valve rod filler 73 can seal through-hole, prevent fluid from leaking, and upper press cover 72 can make the sealing installation of valve rod 2, described lower logical
Lower shaft sleeve 74 is equipped in hole, and Lower shaft sleeve 74 is set on valve rod 2, outside one end of lower through-hole is equipped with lower cover 75, lower cover
75 block lower through-hole, and are fixedly connected with valve body 1 by multiple screws, fill between lower cover 75 and Lower shaft sleeve 74 in lower through-hole
Equipped with lower valve rod filler 76, Lower shaft sleeve 74 is avoided that between valve rod 2 and valve body 1 and rubs that lower valve rod filler 76 can seal lower through-hole,
Prevent fluid from leaking, lower cover 75 can block lower through-hole.
In the present embodiment, the end face of the Upper shaft sleeve 71 and the outside one end of Lower shaft sleeve 74 is equipped with threaded hole, convenient for passing through
Connecting screw is to dismantle axle sleeve.
In the present embodiment, be arranged with clip 55 on the valve rod 2, clip 55 includes upper cuff and lower cuff, upper cuff and
The left and right ends of lower cuff pass through multiple screws respectively and are fixedly connected, and are equipped with stop pin between cuff under valve rod 2 and upper cuff
Key 56, one end of rocking bar 51 are fixedly connected with one end of lower cuff, specifically, rocking bar 51 and lower cuff are integrally formed, 2 energy of valve rod
Rocking bar 51 is driven to rotate by clip 55.
In the present embodiment, the joint face of the butterfly plate 4 is equipped with end cap 9, and all sides of end cap 9 and all sides of butterfly plate 4 are logical
It crosses several screws to be fastenedly connected, end cap 9 is in non-regular arc spherical surface, can cover valve rod 2, eccentric adjustable mechanism 6 and torsion
Mechanism 5, valve rod 2 can stretch out end cap 9 from upper and lower two sides, can reduce fluid washing away to eccentric adjustable mechanism 6 and twist mechanism 5.
In the present embodiment, the material of the valve seat 3 and butterfly plate 4 is tungsten carbide, and whole high temperature resistant, wear-resisting property are preferable.
The working principle of the present embodiment: when butterfly plate 4 in the open state, under the active force of torsional spring 52, rocking bar 51 is remote
It offsets always with butterfly plate 4 from 2 one end of valve rod, it is ensured that the stabilization between valve rod 2 and butterfly plate 4, fluid flows when preventing butterfly plate 4 from opening
Butterfly plate 4 is caused to shake；When closing butterfly valve, the both ends for controlling valve rod 2 are rotated relative to valve body 1, and the middle part of valve rod 2 drives 4 turns of butterfly plate
It is dynamic, until butterfly plate 4 closes flat and runner is truncated, and the outer circle of butterfly plate 4 is oblique when the joint face week side of butterfly plate 4 offsets with guide pile 8
Sealing surface 41 and the oblique sealing surface 31 of inner circle of valve seat 3 offset, which is in close state, at this time in the middle part of valve rod 2
Axis is generally aligned in the same plane with the vertical centerline of butterfly plate 4 and the plane is vertical with the joint face of butterfly plate 4, and the pass of butterfly plate 4 was put down
Cheng Zhong, under the effect of torsional spring 52, rocking bar 51 offsets with butterfly plate 4 always；When small stream still occurs in 4 Guan Pinghou of butterfly plate of the butterfly valve
When body is revealed namely there is abrasion in butterfly plate 4 or valve seat 3 causes poorly sealed close, continue to rotate valve rod 2, the middle part of valve rod 2 is opposite
The both ends of valve rod 2 are eccentric, and when the both ends of valve rod 2 rotate, the middle part deflection of valve rod 2 is simultaneously close to 3 direction of valve seat, and guide pile 8 supports
The firmly joint face week side of butterfly plate 4 prevents butterfly plate 4 from deflecting, and the middle part triggering eccentric adjustable mechanism 6 of valve rod 2 acts, valve rod 2
Middle part opposing slider 61 rotates, and spring 64 compresses, and butterfly plate 4 is moved to the left, meanwhile, the middle part of valve rod 2 drives rocking bar 51 to rotate, and shakes
Bar 51 is drifted apart from far from 2 one end of valve rod with butterfly plate 4, and under the effect of torsional spring 52, the torque between rocking bar 51 and butterfly plate 4 increases
Greatly, under 2 middle part deflecting action of eccentric adjustable mechanism 6, twist mechanism 5 and valve rod, butterfly plate 4 is close to 3 direction of valve seat, butterfly plate 4
The oblique sealing surface 41 of outer circle squeeze the oblique sealing surface 31 of inner circle of valve seat 3, increase seal pressure is prevented with improving leakproofness
Fluid leakage, when rotation valve rod 2 is to open 1 inner flow passage of valve body, under the reply twisting resistance effect of torsional spring 52,4 phase of butterfly plate
It is resetted to being rotated in the middle part of valve rod 2, rocking bar 51 offsets far from 2 one end of valve rod with butterfly plate 4, it is ensured that steady between valve rod 2 and butterfly plate 4
Fixed, fluid flowing causes butterfly plate 4 to shake when preventing butterfly plate 4 from opening；Sealing between the butterfly plate 4 and valve seat 3 of the butterfly valve is adjustable, out
After now wearing, no replacement is required butterfly valve or repair, it can effectively save cost.
In specification of the invention, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention can be
Without being practiced in the case where these details.In some instances, well-known methods, structures and techniques have not been shown in detail,
So as not to obscure the understanding of this specification.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although
Present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it still may be used
To modify to technical solution documented by previous embodiment, or some or all of the technical features are equal
Replacement；And these are modified or replaceed, the model for technical solution of the embodiment of the present invention that it does not separate the essence of the corresponding technical solution
It encloses, should all cover within the scope of the claims and the description of the invention.
Claims (9)
1. a kind of adjustable type eccentric-butterfly-valve, it is characterised in that: including valve body (1), valve rod (2), valve seat (3) and butterfly plate (4)；It is described
The upper and lower ends of valve rod (2) form eccentric rod to the same side deviation, and the upper and lower ends of valve rod (2) are rotated with valve body (1)
Connection, valve seat (3) are fixedly installed in valve body (1) inside, and the one side of butterfly plate (4) is sealing surface, and another side is joint face, butterfly plate
(4) sealing surface peripheral side is equipped with the oblique sealing surface of outer circle (41), and valve seat (3) is equipped with the oblique sealing surface of inner circle (31)；
Twist mechanism (5) transversely are equipped in the middle part of the joint face of the butterfly plate (4), twist mechanism (5) is symmetrically arranged with two sides up and down
Two eccentric adjustable mechanisms (6), the twist mechanism (5) include rocking bar (51) and torsional spring (52), and rocking bar (51) and valve rod (2) are hung down
Straight and rocking bar (51) one end is fixedly connected with valve rod (2), and torsional spring (52) is set on valve rod (2), torsional spring (52), butterfly plate (4)
It forms torque structure between rocking bar (51) three the end of rocking bar (51) other end offsets with butterfly plate (4), the eccentric tune
Section mechanism (6) includes sliding block (61), top plate (62), bottom plate (63) and spring (64), and sliding block (61) includes upper clamp plate and lower clamp plate,
The circular hole for being easily installed valve rod (2) is equipped between upper clamp plate and lower clamp plate, valve rod (2) is equipped with annular groove, and upper clamp plate is under
Clamping plate is connected at the annular groove of valve rod (2), is fixedly connected between upper clamp plate and lower clamp plate by multiple screws, top plate (62)
It is fixedly installed in the upper end of bottom plate (63) by multiple screws, rectangular sliding slot, sliding block are equipped between top plate (62) and bottom plate (63)
(61) be mounted in rectangular sliding slot with spring (64), the both ends of spring (64) respectively with sliding block (61) right side and rectangular sliding slot
Right side wall surface be fixedly connected, bottom plate (63) is fixedly connected by multiple screws with the joint face of butterfly plate (4), two eccentric adjustings
The sliding block (61) of mechanism (6) clamps the middle part of valve rod (2) respectively.
2. adjustable type eccentric-butterfly-valve according to claim 1, it is characterised in that: be respectively provided on the valve body (1)
The upper through-hole and lower through-hole of interspersed valve rod (2), the lower end insertion lower through-hole of valve rod (2) are simultaneously rotatablely connected, and the upper end of valve rod (2) is worn
It crosses through-hole and is rotatablely connected.
3. adjustable type eccentric-butterfly-valve according to claim 2, it is characterised in that: be equipped with Upper shaft sleeve in the upper through-hole
(71), and Upper shaft sleeve (71) is set on valve rod (2), and outside one end of upper through-hole is equipped with upper press cover (72), upper press cover (72) set
It is located on valve rod (2), and is fixedly connected with valve body (1) by multiple screws, upper press cover (72) and Upper shaft sleeve (71) in upper through-hole
Between filling be equipped with upper valve rod filler (73), be equipped with Lower shaft sleeve (74) in the lower through-hole, and Lower shaft sleeve (74) is set in valve rod
(2) on, outside one end of lower through-hole is equipped with lower cover (75), and lower cover (75) blocks lower through-hole, and passes through with valve body (1) multiple
Screw is fixedly connected, and filling is equipped with lower valve rod filler (76) between lower cover (75) and Lower shaft sleeve (74) in lower through-hole.
4. adjustable type eccentric-butterfly-valve according to claim 3, it is characterised in that: the Upper shaft sleeve (71) and Lower shaft sleeve (74)
The end face of outside one end is equipped with threaded hole.
5. adjustable type eccentric-butterfly-valve according to claim 1, it is characterised in that: the twist mechanism (5) further includes pedestal
(53) and connecting rod (54) there are two, pedestal (53) is set, two pedestals (53) be symmetrical arranged along rocking bar (51) and with butterfly plate (4)
Joint face passes through multiple screws respectively and is fixedly connected, and connecting rod (54) is set up between two pedestals (53), connecting rod (54) and valve rod
(2) left side that is parallel and being located at valve rod (2), the torsional spring (52) is torsion spring (52), and the medium support of torsional spring (52) is hooked on
Far from valve rod (2) one end on rocking bar (51), two foots of torsional spring (52) are hooked on connecting rod (54).
6. adjustable type eccentric-butterfly-valve according to claim 5, it is characterised in that: be arranged with clip on the valve rod (2)
(55), clip (55) includes upper cuff and lower cuff, and the left and right ends of upper cuff and lower cuff pass through multiple screws respectively and fix
It connects, is equipped with anti-rotation pin key (56) between cuff under valve rod (2) and upper cuff, one end of one end of rocking bar (51) and lower cuff
It is fixedly connected.
7. according to claim 1 to adjustable type eccentric-butterfly-valve described in 6 any one, it is characterised in that: the stream of the valve body (1)
Road inner wall is fixed with guide pile (8).
8. adjustable type eccentric-butterfly-valve according to claim 1, it is characterised in that: the joint face of the butterfly plate (4) is equipped with end
It covers (9), all sides of end cap (9) and all sides of butterfly plate (4) are fastenedly connected by several screws.
9. adjustable type eccentric-butterfly-valve according to claim 1, it is characterised in that: the material of the valve seat (3) and butterfly plate (4)
It is tungsten carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862056.0A CN110513494A (en) | 2019-09-12 | 2019-09-12 | Adjustable type eccentric-butterfly-valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910862056.0A CN110513494A (en) | 2019-09-12 | 2019-09-12 | Adjustable type eccentric-butterfly-valve |
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| Publication Number | Publication Date |
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| CN110513494A true CN110513494A (en) | 2019-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910862056.0A Pending CN110513494A (en) | 2019-09-12 | 2019-09-12 | Adjustable type eccentric-butterfly-valve |
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| US4280681A (en) * | 1980-01-09 | 1981-07-28 | Koppers Company, Inc. | Center link disc valve |
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| US9506571B1 (en) * | 2013-08-19 | 2016-11-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cryogenic cam butterfly valve |
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- 2019-09-12 CN CN201910862056.0A patent/CN110513494A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2934310A (en) * | 1955-11-02 | 1960-04-26 | Kinney Eng Inc S P | Tight closing butterfly valve |
| DE2809604A1 (en) * | 1978-03-06 | 1979-09-20 | Adams Armaturen App | Slide guides and slide pieces in cut=off valve retention system - have tracks respectively at right angles and parallel to valve plane |
| US4280681A (en) * | 1980-01-09 | 1981-07-28 | Koppers Company, Inc. | Center link disc valve |
| US4770392A (en) * | 1985-05-30 | 1988-09-13 | Fritz Schmidt | Shut-off device for pipes |
| US5330157A (en) * | 1993-07-28 | 1994-07-19 | Hull Corporation | Rotary disk valve |
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| US9506571B1 (en) * | 2013-08-19 | 2016-11-29 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Cryogenic cam butterfly valve |
| CN210661410U (en) * | 2019-09-12 | 2020-06-02 | 龙长贵 | Adjustable eccentric butterfly valve |
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