CN108533766A - A kind of butterfly valve seal structure and novel butterfly valve - Google Patents

A kind of butterfly valve seal structure and novel butterfly valve Download PDF

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Publication number
CN108533766A
CN108533766A CN201810570136.4A CN201810570136A CN108533766A CN 108533766 A CN108533766 A CN 108533766A CN 201810570136 A CN201810570136 A CN 201810570136A CN 108533766 A CN108533766 A CN 108533766A
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CN
China
Prior art keywords
valve
flap
butterfly valve
sealing ring
runner
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810570136.4A
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Chinese (zh)
Inventor
张瑜
张淑彬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Huangyan Minghua Plastic Pipe Fittings Co Ltd
Original Assignee
Zhejiang Huangyan Minghua Plastic Pipe Fittings Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
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Application filed by Zhejiang Huangyan Minghua Plastic Pipe Fittings Co Ltd filed Critical Zhejiang Huangyan Minghua Plastic Pipe Fittings Co Ltd
Priority to CN201810570136.4A priority Critical patent/CN108533766A/en
Publication of CN108533766A publication Critical patent/CN108533766A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F16K1/222—Shaping of the valve member
    • 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
    • F16K1/224—Details of bearings for the axis of rotation
    • 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
    • F16K1/2261—Shaping or arrangements of the sealing the sealing being arranged on the valve member
    • 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
    • F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
    • 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
    • F16K1/48—Attaching valve members to screw-spindles
    • 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
    • F16K1/52—Means for additional adjustment of the rate of flow
    • 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
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/02—Construction of housing; Use of materials therefor of lift valves
    • F16K27/0209—Check valves or pivoted valves
    • F16K27/0218—Butterfly valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)

Abstract

The invention discloses a kind of novel butterfly valve seal structure, refer in particular to it is a kind of include the novel butterfly valve seal structure butterfly valve, belong to valve technology field.A kind of novel butterfly valve seal structure, including valve body, form runner in the valve body, and flap is rotatably provided with by valve rod assembly in runner；The flap includes left flap and right flap；It is provided with sealing ring between the left flap and right flap, the inner wall of the runner is provided on the outside of sealing ring；Be additionally provided with a drive component on the valve body, drive component drives the right flap close to or far from left flap, left flap and right flap is close to each other and crush seal circle to a certain degree when, the sealing ring expands outwardly the inner wall for being deformed into and sealing the runner.The present invention to crush seal circle and makes sealed ring deformation by the way that a sealing ring is arranged between two flaps, by the movement of flap, and deformed sealing ring is resisted against in runner inner wall, to achieve the effect that sealing.

Description

A kind of butterfly valve seal structure and novel butterfly valve
Technical field
The invention belongs to valve technology fields, are related to a kind of butterfly valve seal structure, and it includes that the butterfly valve is close to refer in particular to one kind The butterfly valve of seal structure.
Background technology
Currently, butterfly valve is called flap valve, it is a kind of regulating valve simple in structure, can be used for the switch control of low pressure pipeline medium The butterfly valve of system refers to closure member flap or butterfly plate is disk, and a kind of valve of open and close is reached around valve shaft rotation.From valve For the angle of door, how to realize that sealing anti-leak is important index.Especially when butterfly valve is applied in water pipe, just More require emphasis sealing performance.
Chinese invention patent, Patent No.：201410740602.0 the present invention is a kind of internal channel gas-flow closure butterfly valve, It is the heavy caliber gas-flow closure butterfly valve significant improvement to applying before.Including valve body, valve rod and the valve being made of valve plate and valve seat Core.Valve body is the flanged cylinder of both ends of the surface, and top and bottom set axle sleeve and valve foot respectively, and inner peripheral wall sets ring-shaped valve seats.Valve plate Outer rim sets inflatable seal cushion rubber, and sealing relationship is formed with valve seat.Valve rod is set among valve body, upper end sets inflation gas check valve, on Section sets inflation internal channel along central axes direction, laterally sets air admission hole, internal channel is communicated with air admission hole.It is set between axle sleeve and valve rod close Seal ring.Valve plate is made of trim ring, sealing rubber ring and disc bottom plate, and inflatable seal cushion rubber, shape are accompanied between trim ring and bottom plate At the state of holding one's breath.Original is located at charge valve outside valve body by this product, gas tube makes into inflate internal channel, not only cost-effective, and Moulded succinct, installation or carrying will not damage ring air charging system, and tracheae tie point is reduced, and makes sealing performance more preferably, when pressurize Between it is longer.
In above-mentioned technical proposal, by being inflated inside cushion rubber to realize the function of sealing.But it was actually using Cheng Zhong, if being sealed using inflatable, if once some position of cushion rubber has holes to result in entire cushion rubber thorough It scraps, and such design is also inconvenient when replacing cushion rubber in the later stage, leads to the inconvenience in later period maintenance.
Invention content
The object of the present invention is to provide a kind of good seal performance, stable structure, easy to assembly, butterfly valves with long service life.
The object of the present invention is achieved like this：A kind of butterfly valve seal structure, including valve body form stream in the valve body Road, runner is interior to be rotatably provided with flap by valve rod assembly；The flap includes left flap and right flap；The left flap It is provided with sealing ring between right flap, the inner wall of the runner is provided on the outside of sealing ring；It is additionally provided with one on the valve body Drive component, drive component drive the right flap close to or far from left flap, and left flap and right flap are close to each other and squeeze Pressure seal ring to a certain degree when, the sealing ring expands outwardly the inner wall for being deformed into and sealing the runner.
Preferably, the left flap is fixed with the valve rod assembly, and the right flap is moving member；The runner is sealed When, right flap is towards liquid feeding end.
Preferably, the left flap and right flap have been separately formed a left groove and right groove, left groove and right groove it Between be installed with the sealing ring..
A kind of novel butterfly valve, including the butterfly valve seal structure described in any of the above item, the valve rod assembly include a valve Set and stem body；The stem body upper end is provided with valve handle, and valve handle one end forms polygonal hole；The valve handle and institute It states and the valve pocket is set between stem body, the cross sectional shape of valve pocket outer rim is adapted to the polygonal hole cross sectional shape.
Preferably, the valve body upper end is installed with one division disk, several indexing teeth are formed on index dial；Described point The valve pocket is also equipped in scale；Stem body lower end liftable is provided with handle tooth and passes through handle tooth and the indexing tooth Adaptation.
Preferably, the valve handle includes sleeve and the shank that is arranged in sleeve, and a fulcrum, institute are formed in the middle part of shank Stating shank can be rotatably provided in around the fulcrum in the sleeve；Described shank one end forms the handle tooth, the handle The bar other end forms the hand-held part for facilitating gripping and increasing stroke.
Preferably, flanging is formed in the middle part of the valve pocket, the upper surface of the left flap is resisted against the flanging Lower end.
Preferably, the outer rim of the left flap upper end is arranged with axle sleeve, and the upper and lower ends of axle sleeve are close by third respectively Seal is resisted against the lower end of the valve pocket and left flap upper end.
Preferably, the valve body lower end portion forms valve seat mounting hole, is fitted in valve seat mounting hole and is equipped with a butterfly valve seal Seat, the upper end of butterfly valve seal seat is resisted against the lower end of the left flap.
Preferably, the left flap forms mounting hole；Butterfly valve seal seat upper end forms a Step Shaft, step Axis upper end be threaded through in the mounting hole and be provided between the Step Shaft upper end and the mounting hole several first Sealing ring；It is provided with the second sealing ring between the butterfly valve seal seat and the valve seat mounting hole.
Preferably, the butterfly valve seal seat and the valve body sequentially passed through from the bottom to top by fastener butterfly valve seal seat and Valve body is fastenedly connected to realize.
The present invention is prominent and beneficial compared with prior art to be had the technical effect that：
1. the present invention between two flaps by being arranged a sealing ring, by the movement of flap to crush seal circle And making sealed ring deformation, deformed sealing ring is resisted against in runner inner wall, to achieve the effect that sealing.And wherein After one flap movement, sealing ring can naturally have a kind of restorable trend, to realize the purpose of circulation again. Such design service life is long, and assembly is simple, easy to use.
2. the present invention by two inclined-planes overstock to by valve rod in the vertical direction to displacive transformation become flap Movement in the horizontal direction, to realize the deformation of sealing ring.The knot of butterfly valve itself is adequately utilized in such design Structure slightly reequips valve rod it is achieved that very convenient quick.
3. the present invention further increases sealing effect by increasing multiple sealing rings on valve body and left flap.And And it may be implemented to include the effect for fixing other component again while increasing sealing ring.The clever structure of design, while having energy Ensure good sealing performance.
Description of the drawings
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the structure diagram after Fig. 1 omission valve bodies；
Fig. 3 is the exploded perspective view of Fig. 2；
Fig. 4 is that Fig. 2 omits structure diagram after left flap；
Fig. 5 is the partial enlarged view at A in Fig. 4；
Fig. 6 is the structure diagram of right flap；
Fig. 7 is the structure diagram of left flap；
Fig. 8 is the structure diagram of stem body；
Fig. 9 is the structure diagram of valve body；
Figure 10 is the assembling schematic diagram of butterfly valve seal seat and left flap；
Figure 11 is the structure diagram of embodiment two；
Figure 12 is the structure diagram of embodiment three；
Figure 13 is the structure diagram of example IV；
Figure 14 is the structure diagram of embodiment five.
In figure：1- valve bodies；2- stem bodies；The left flaps of 3-；The right flaps of 4-；5- sealing rings；6- lockers；7- valve handles；8- Valve pocket；9- index dials；10- gears；11- runners；12- valve seat mounting holes；13- butterfly valve seal seats；14- Step Shafts；15- first is close Seal；The second sealing rings of 16-；17- drag-lines；18- pulleys；19- power sources；The second inclined surface 21-；22- forced sections；23- racks Portion；24- piston components；25- cable connectors；26- forced sections；27- engaging sections；31- accommodating holes；32- mounting holes；33- axle sleeves； 34- third sealing rings；35- left grooves；41- clip-connecting rods；42- buckling grooves；The first inclined surface 43-；44- racks region of engagement；45- is right Groove；61- threaded holes；71- polygonal holes；72- handle teeth；73- sleeves；74- shanks；The hand-held parts 75-；81- flangings；91- points Spend tooth；101- hydraulic punch pressure areas；102- pressure-bearing pulleys；103- lift pressure levers；104- lift pressure babinets.
Specific implementation mode
The present invention is described further with specific embodiment below.
Embodiment one：As Figure 1-10 shows, a kind of butterfly valve, including valve body 1 form runner 11, runner in the valve body 1 Flap is rotatably provided with by valve rod assembly in 11；The flap includes left flap 3 and right flap 4.
A kind of structure of butterfly valve is specifically illustrated in the technical program.The rotation of flap is realized by rotation valve rod component, Then flap is divided into left and right two parts again, in this way can during later maintenance enhanced convenience, while can also reduce Manufacturing cost.It can also be to pass through bolt that connection between left flap 3 and right flap 4, which can be by shaft hole matching connection, Connection can also be to be connected by being clamped, it might even be possible to which in view of usage scenario, left flap 3 and right flap 4 can To be connected by glue.It is wherein butterfly valve technical field conventional techniques using valve rod assembly driving flap rotation, here not It repeats more.
Preferably, sealing ring 5 is provided between the left flap 3 and right flap 4,5 outside of sealing ring is provided with the stream The inner wall in road 11；A drive component is additionally provided on the valve body 1, drive component drives the right flap 4 close or separate Left flap 3, left flap 3 and right flap 4 is close to each other and crush seal circle 5 to a certain degree when, the sealing ring 5 expands outwardly It is deformed into the inner wall for sealing the runner 11.
A kind of sealing for realizing butterfly valve using sealing ring 5 in butterfly valve technical field is specifically illustrated in the technical program Mode.It can possess more preferable leakproofness compared to that technical solution described in this technology background in this manner, and And can more stablize facilitate repair in actual use, and can have higher service life, it will not be with right More the same than the technical solution described in file, there are one small cuts to result in entire butterfly valve work not normal.
Left and right directions described in the technical program is intended merely to an orientation for facilitating description given, is actually using In the process, left flap 3 can also be to realize mobile by drive component so that sealing ring 5 deforms.Drive described in the technical program Dynamic component can be the presence of diversified forms, can be the one end that used cylinder or hydraulic cylinder are connected to right flap 4, pass through The mode of dragging realizes the movement of right flap 4；Can also be by allowing fastener to sequentially pass through left flap 3 and right flap 4, then 3 side of left flap, from fastener one end, rotation sets a nut, forces right flap 4 to move by rotating nuts.Certainly pass through driving group Part realizes that the mode of the movement of right flap 4 is also very much, and differ an illustration here.
Preferably, the left flap 3 is fixed with the valve rod assembly, and the right flap 4 is moving member；11 quilt of the runner When sealing, right flap 4 is towards liquid feeding end.
A kind of a kind of mode of butterfly valve in actual use is specifically illustrated in the technical program.By allowing right flap 4 are built up in the position of liquid feeding end, in this way can be more laborsaving during locking, and need depressurization state when Wait, not only can utilize sealing ring 5 itself reinstatement that power depressurization but also can be by allowing flow to flow through the right side It when flap 4, is acted on by a hydraulic pressure, the reinstatement of sealing ring 5 is helped speed up, so as to realize more preferable depressurization Effect.Liquid feeding end and outlet end described in the technical program, which can be understood as flow or air-flow, is come in from liquid feeding end, so It is come out afterwards from outlet end.
Preferably, the left flap 3 and right flap 4 have been separately formed a left groove 35 and right groove 45,35 He of left groove The sealing ring 5 is installed between right groove 45.
A kind of mounting means of sealing ring 5 is specifically illustrated in the technical program, passes through left groove 35 and right groove 45 Design not only can with fixed seal ring 5 again can with pinch seal circle 5 increase sealing ring 5 deflection.
Preferably, the valve rod assembly, which includes at least, a stem body 2；The left side of the right flap 4 forms a card Column 41 is connect, the side of clip-connecting rod 41 forms buckling groove 42, and the left side of buckling groove 42 forms the first inclined surface 43；The valve rod The lower end of main body 2 passes through the buckling groove 42 and forms the second inclined surface 21, and the upper end of the second inclined surface 21 is provided with First inclined surface 43；The stem body 2 is moved up and down by driving device and second inclined surface 21 is driven It is resisted against on the first inclined surface 43 and the right flap 4 is driven to move.
A kind of mode that the right flap 4 of driving moves specifically is illustrated in the technical program.Preferably can also be above-mentioned The one of which realization method of drive component.In the technical scheme, moving up and down so as to driving second by flap Inclined surface 21 is resisted against the lower end of the first inclined surface 43, so as to realize that moving up and down for stem body 2 is transformed into flap Move left and right.Driving device described in the technical program can be dropped by manpower, can also be by cylinder or Hydraulic cylinder drags or other any modes that stem body 2 can be made to move up and down and structure.
Preferably, the driving device includes locker 6, and threaded hole 61, the stem body are formed in locker 6 2 upper end forms the threaded post being adapted to the threaded hole 61.
A kind of structure of driving device is specifically illustrated in the technical program, and the mode being connected through a screw thread realizes driving, It is not only laborsaving but also be particularly suitable for the use in actual scene.Because in actual scene, butterfly valve is often mounted in pipeline, Thus best adjustment mode is exactly by being adjusted outside pipeline.This portion of stem body 2 is thus provided in butterfly valve Part similarly in the technical scheme forces the rotation of stem body 2 by the rotation of locker 6, so as to realize in pipe The movement of right flap 4 can be driven outside road, it is very simple and clear, especially meet actual production demand.
Preferably, 3 right inward of left flap forms horizontally disposed accommodating hole 31, and the clip-connecting rod 41 is accommodating Slidably it is arranged in hole 31；The left flap 3 forms a mounting hole 32, institute in the vertical direction of 31 axis of the accommodating hole Stem body 2 is stated to be threaded through in the mounting hole 32.
The fit system between a kind of left flap 3 and right flap 4, the cooperation side of axis hole is specifically illustrated in the technical program Formula can preferably realize connection between the two, and the movement of right flap 4 can be allowed most in actual use It is possible to be moved horizontally towards 3 side of left flap.It thus can preferably realize the deformation of sealing ring 5.The technical program simultaneously Also specifically a kind of mounting means of clear stem body 2, such design can allow the design of butterfly valve entirety more complete It is coherent, there is stronger working strength, more hydraulic pressure can be born.
Preferably, the cross sectional shape of the mounting hole 32 is polygon, and the lower end of the stem body 2 forms and institute State the forced section 26 of 32 shape adaptation of mounting hole.
A kind of shape of mounting hole 32 is specifically illustrated in this technology, and the purpose for designing polygon is to provide a kind of driving valve The mode of valve rotation.The design of polygon can allow the rotation of stem body 2 that can become the rotation of flap, and such design is more Add easily and effectively.And the polygon described in the technical program can be triangle either quadrangle or other polygons.And four Shape especially square in side is simple in structure because of convenient material drawing, and uniform force is stablized, and is preferably polygon in the technical program Shape shape.Adaptation described in the technical program, he means on the rotation energy and flap of the polygon on stem body 2 Polygon, which rotates, can generate the transmission of power, that is to say, that the polygon on polygon and flap on stem body 2 can all be The same quadrilateral structure can also be the cooperation of a triangle and quadrangle, and the mode coordinated here is varied, just not It repeats more.
Preferably, the valve rod assembly further includes having a valve pocket 8；2 upper end of the stem body is provided with valve handle 7, valve 7 one end of handle forms polygonal hole 71；The valve pocket 8 is set between the valve handle 7 and the stem body 2,8 outer rim of valve pocket Cross sectional shape is adapted to 71 cross sectional shape of the polygonal hole.
The technical program is specifically illustrated a kind of design scheme that valve is bright, the rotation that the design of polygon can allow valve bright Become the rotation of stem body 2, valve is bright because there is longer torque, can be more by the rotation of the bright driving stem main body of valve 2 Add laborsaving.And the polygonal design that valve is bright and stem body 2 is adapted to, rotation can be allowed to be more uniformly stressed and more can be by Power.Adaptation described in the technical program, he means polygon on the rotation energy and flap of the polygon on stem body 2 Shape rotates the transmission that can generate power, that is to say, that the polygon on polygon and flap on stem body 2 can be just as Quadrilateral structure, can also be the cooperation of a triangle and quadrangle, the mode coordinated here is varied, just few superfluous It states.
Preferably, 1 upper end of the valve body is installed with one division disk 9, several indexing teeth 91 are formed on index dial 9； The valve pocket 8 is also equipped in the index dial 9；7 lower end liftable of the valve handle be provided with handle tooth 72 by handle tooth 72 with The indexing tooth 91 is adapted to.
The technical program specifically describes a kind of design scheme of index dial 9.It can be more by the design of index dial 9 The accurately angle of control rotation.
Preferably, the valve handle 7 includes sleeve 73 and the shank 74 that is arranged in sleeve 73, and 74 middle part of shank forms One fulcrum, the shank 74 can be rotatably provided in around the fulcrum in the sleeve 73；74 one end of the shank forms The handle tooth 72,74 other end of the shank form the hand-held part 75 for facilitating gripping and increasing stroke.
A kind of structure type of valve handle 7 is specifically illustrated in the technical program.The knot of valve handle 7 described in the technical program Structure in actual use, can press hand-held part 75 then by lever principle by hand, and 72 one end of driving handle tooth moves downward, To which handle tooth 72 and indexing tooth 91 are detached from, so as to be detached from.It can be by handle tooth 72 when needing using index dial 9 Be engaged use of the realization to index dial 9 with indexing tooth 91, also against being useful for driving between general sleeve 73 and shank 74 The spring that shank 74 resets.
Preferably, 8 middle part of the valve pocket forms flanging 81, and the upper surface of the left flap 3 is resisted against described turn up The lower end on side 81；The outer rim of 3 upper end of left flap is arranged with axle sleeve 33, and the upper and lower ends of axle sleeve 33 pass through third respectively Sealing ring 34 is resisted against 3 upper end of lower end and left flap of the valve pocket 8.
The technical program is specifically illustrated a kind of locating scheme of valve pocket 8, and such design can allow the position of valve pocket 8 Firmly it is located in the upper end of left flap 3.In actual use, 3 upper end of left flap is the process to become smaller there are one size, Axle sleeve 33 is stuck in this position to become smaller, and sealing ring then is arranged in the upper and lower ends of axle sleeve 33 again, thus can realize Positioning, in turn ensures sealing performance.
Preferably, 1 lower end of the valve body forms valve seat mounting hole 12, is fitted in valve seat mounting hole 12 and is equipped with a butterfly valve Seal receptacle 13, the upper end of butterfly valve seal seat 13 are resisted against the lower end of the left flap 3；The left flap 3 forms installation Hole 32；13 upper end of butterfly valve seal seat forms a Step Shaft 14, and 14 upper end of Step Shaft is threaded through the mounting hole 32 It is provided with several the first sealing rings 15 between interior and described 14 upper end of Step Shaft and the mounting hole 32；The butterfly valve seal It is provided with the second sealing ring 16 between seat 13 and the valve seat mounting hole 12；The butterfly valve seal seat 13 passes through with the valve body 1 Fastener sequentially passes through butterfly valve seal seat 13 and valve body 1 and is fastenedly connected to realize from the bottom to top.
The technical program is specifically illustrated a kind of lower end in left flap 3 and a butterfly valve seal seat 13 is arranged, to It can realize the positioning action to left flap 3.Butterfly valve seal seat is ensure that further through the first sealing ring 15 and the second sealing ring 16 Sealing between 13 and valve body 1 and butterfly valve seal seat 13 and left flap 3.It can be connected through a screw thread again simultaneously and realize that butterfly valve is close Seal the positioning of seat 13.The structure of entire butterfly valve thus can be preferably allowed to connect more firm.
Embodiment two, as shown in figure 11, the present embodiment and embodiment one are almost the same, and difference is：About driving The concrete structure mode of component is different.Preferably, 2 lower end of stem body forms tooth-strip part 23,23 side of tooth-strip part adaptation There are gear 10,10 lower end of gear to be provided with the rack region of engagement 44 of right flap 4, rack region of engagement 44 is suitable with the gear 10 Match.So as to by between tooth-strip part 23 and gear 10 and rack region of engagement 44 and the gear 10 between " gear Rack coordinates " hereby, it is achieved that moving up and down for stem body 2 is changed into moving left and right for right flap 4.So as to realize left valve Close, the realization sealing of crush seal circle 5 of valve 3 and right flap 4.
Embodiment three, as shown in figure 12, the present embodiment and embodiment one are almost the same, and difference is：About driving The concrete structure mode of component is different.Preferably, piston component 24 is provided in stem body 2,24 lower end of piston component is set It is equipped with hydraulic punch pressure area 101,4 side of right flap forms clip-connecting rod 41, and clip-connecting rod 41 can be slided by piston component 24 It is dynamic to be arranged in the hydraulic punch pressure area 101.The technical program by piston component 24 move up and down change hydraulic stamping The pressure of hydraulic oil in area 101, to drive clip-connecting rod 41 to move left and right, so as to realize left flap 3 and right flap 4 Close, crush seal circle 5 realizes sealing.
Example IV, as shown in figure 13, the present embodiment and embodiment one are almost the same, and difference is：The valve rod 2 upper end of main body is connected with drag-line 17, and drag-line 17 allows valve rod by the dragging realization for being arranged in the power source 19 of 18 side of pulley The movement of main body 2 in the vertical direction.Such side provides a larger pulling force and is pulled to stem body 2, especially suitable The scene larger for pressure.
Embodiment five, as shown in figure 14, the present embodiment and embodiment one are almost the same, and difference is：Stem body 2 Upper end is connected with drag-line 17, and drag-line 17 is by a pressure-bearing pulley 102 and is wrapped on pressure-bearing pulley 102, pressure-bearing pulley 102 1 Side is connected with lift pressure lever 103；The pressure-bearing pulley 102 is installed in pressure-bearing babinet 104.
In actual use, by lifting or pushing lift pressure lever 103, to drive the rotation of pressure-bearing pulley 102, And then drag-line 17 can be rotated around driving pressure-bearing pulley 102, and then driving stem main body 2 moves up and down, to realizing Sealing function of the present invention.The present embodiment is somewhat like with example IV, and difference is the mode of driving drag-line 17 not Together.
Above-described embodiment is only presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：It is all according to The equivalence changes that structure, shape, the principle of the present invention is done, should all be covered by within protection scope of the present invention.

Claims (10)

1. a kind of butterfly valve seal structure, including valve body (1), it is characterised in that：Runner (11) is formed in the valve body (1), is flowed Flap is rotatably provided with by valve rod assembly in road (11)；The flap includes left flap (3) and right flap (4)；It is described It is provided with sealing ring (5) between left flap (3) and right flap (4), the interior of the runner (11) is provided on the outside of sealing ring (5) Wall；A drive component is additionally provided on the valve body (1), drive component drives the right flap (4) close or far from left valve Valve (3), left flap (3) and right flap (4) is close to each other and crush seal circle (5) to a certain degree when, the sealing ring (5) to Outer expansion is deformed into the inner wall for sealing the runner (11).
2. butterfly valve seal structure according to claim 1, it is characterised in that：The left flap (3) and the valve rod assembly Fixed, the right flap (4) is moving member；When the runner (11) is sealed, right flap (4) is towards liquid feeding end.
3. butterfly valve seal structure according to claim 1, it is characterised in that：The left flap (3) and right flap (4) are respectively A left groove (35) and right groove (45) are formed, the sealing ring (5) is installed between left groove (35) and right groove (45).
4. a kind of novel butterfly valve, including claim 1-3 any one of them butterfly valve seal structures, it is characterised in that：The valve Bar assembly includes a valve pocket (8) and stem body (2)；Stem body (2) upper end is provided with valve handle (7), valve handle (7) One end forms polygonal hole (71)；The valve pocket (8), valve pocket are set between the valve handle (7) and the stem body (2) (8) cross sectional shape of outer rim is adapted to the polygonal hole (71) cross sectional shape.
5. novel butterfly valve according to claim 4, it is characterised in that：Flanging (81) is formed in the middle part of the valve pocket (8), The upper surface of the left flap (3) is resisted against the lower end of the flanging (81).
6. novel butterfly valve according to claim 5, it is characterised in that：The outer rim of left flap (3) upper end is arranged with Axle sleeve (33), the upper and lower ends of axle sleeve (33) respectively by third sealing ring (34) be resisted against the valve pocket (8) lower end and Left flap (3) upper end.
7. novel butterfly valve according to claim 4, it is characterised in that：Valve body (1) upper end is installed with one division disk (9), several indexing teeth (91) are formed on index dial (9)；It is also equipped with the valve pocket (8) in the index dial (9)；It is described Valve handle (7) lower end liftable is provided with handle tooth (72) and is adapted to the indexing tooth (91) by handle tooth (72)；The valve handle (7) The shank (74) for including sleeve (73) and being arranged in sleeve (73), shank (74) middle part form a fulcrum, the shank (74) it can be rotatably provided in around the fulcrum in the sleeve (73)；Described shank (74) one end forms the handle tooth (72), shank (74) other end forms the hand-held part (75) for facilitating gripping and increasing stroke.
8. novel butterfly valve according to claim 4, it is characterised in that：Valve body (1) lower end forms valve seat installation Hole (12) fits in valve seat mounting hole (12) and is equipped with a butterfly valve seal seat (13), and the upper end of butterfly valve seal seat (13) is resisted against The lower end of the left flap (3).
9. novel butterfly valve according to claim 8, it is characterised in that：The left flap (3) forms mounting hole (32)；Institute It states butterfly valve seal seat (13) upper end and forms a Step Shaft (14), Step Shaft (14) upper end is threaded through the mounting hole (32) Several the first sealing rings (15) are provided between interior and described Step Shaft (14) upper end and the mounting hole (32)；The butterfly The second sealing ring (16) is provided between valve seal receptacle (13) and the valve seat mounting hole (12).
10. novel butterfly valve according to claim 9, it is characterised in that：The butterfly valve seal seat (13) and the valve body (1) Butterfly valve seal seat (13) and valve body (1) is sequentially passed through from the bottom to top by fastener to be fastenedly connected to realize.
CN201810570136.4A 2018-06-05 2018-06-05 A kind of butterfly valve seal structure and novel butterfly valve Pending CN108533766A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058480A (en) * 2018-09-19 2018-12-21 浙江中德自控科技股份有限公司 A kind of high temperature butterfly valve of good airproof performance
CN110173571A (en) * 2019-06-28 2019-08-27 济南迈克阀门科技有限公司 A kind of low flowing loss butterfly valve valve flap structure
CN113154058A (en) * 2021-03-26 2021-07-23 浙江理工大学 Automatic butterfly valve of locking
CN114704648A (en) * 2022-06-02 2022-07-05 常州市迅驰干燥设备有限公司 A two flap valve ejection of compact structures for spray dryer whirlwind

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GB799888A (en) * 1955-05-14 1958-08-13 Bosch Gmbh Robert Improvements in plate valves for use in pipe lines
DE3835820A1 (en) * 1988-10-21 1990-04-26 Fritz Schmidt Shut-off flap
KR20070109577A (en) * 2006-05-12 2007-11-15 이한흥 The butterfly valve and it's manufacture method
CN201547271U (en) * 2009-10-27 2010-08-11 浙江鼎耐塑胶管阀有限公司 butterfly valve
CN201831153U (en) * 2010-09-25 2011-05-18 东莞市江顺箱包袋配件有限公司 Draw bar lock structure
CN201909043U (en) * 2010-12-03 2011-07-27 浙江正华阀门厂 High-temperature and high-pressure butterfly valve of bidirectional-flow and self-seal elastic valve seat
CN207161732U (en) * 2017-09-14 2018-03-30 浙江创享阀门科技有限公司 Wear-resisting antiscour butterfly valve
CN207178716U (en) * 2017-09-20 2018-04-03 浙江北泽阀门科技有限公司 A kind of three eccentric two-way hard seal butterfly valve
CN208734897U (en) * 2018-06-05 2019-04-12 浙江黄岩明华塑胶管件有限公司 A kind of butterfly valve seal structure and novel butterfly valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB799888A (en) * 1955-05-14 1958-08-13 Bosch Gmbh Robert Improvements in plate valves for use in pipe lines
DE3835820A1 (en) * 1988-10-21 1990-04-26 Fritz Schmidt Shut-off flap
KR20070109577A (en) * 2006-05-12 2007-11-15 이한흥 The butterfly valve and it's manufacture method
CN201547271U (en) * 2009-10-27 2010-08-11 浙江鼎耐塑胶管阀有限公司 butterfly valve
CN201831153U (en) * 2010-09-25 2011-05-18 东莞市江顺箱包袋配件有限公司 Draw bar lock structure
CN201909043U (en) * 2010-12-03 2011-07-27 浙江正华阀门厂 High-temperature and high-pressure butterfly valve of bidirectional-flow and self-seal elastic valve seat
CN207161732U (en) * 2017-09-14 2018-03-30 浙江创享阀门科技有限公司 Wear-resisting antiscour butterfly valve
CN207178716U (en) * 2017-09-20 2018-04-03 浙江北泽阀门科技有限公司 A kind of three eccentric two-way hard seal butterfly valve
CN208734897U (en) * 2018-06-05 2019-04-12 浙江黄岩明华塑胶管件有限公司 A kind of butterfly valve seal structure and novel butterfly valve

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109058480A (en) * 2018-09-19 2018-12-21 浙江中德自控科技股份有限公司 A kind of high temperature butterfly valve of good airproof performance
CN110173571A (en) * 2019-06-28 2019-08-27 济南迈克阀门科技有限公司 A kind of low flowing loss butterfly valve valve flap structure
CN113154058A (en) * 2021-03-26 2021-07-23 浙江理工大学 Automatic butterfly valve of locking
CN113154058B (en) * 2021-03-26 2023-03-21 浙江理工大学 Automatic butterfly valve of locking
CN114704648A (en) * 2022-06-02 2022-07-05 常州市迅驰干燥设备有限公司 A two flap valve ejection of compact structures for spray dryer whirlwind

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