CN204239771U - A kind of linkage type butterfly valve - Google Patents
A kind of linkage type butterfly valve Download PDFInfo
- Publication number
- CN204239771U CN204239771U CN201420541491.6U CN201420541491U CN204239771U CN 204239771 U CN204239771 U CN 204239771U CN 201420541491 U CN201420541491 U CN 201420541491U CN 204239771 U CN204239771 U CN 204239771U
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- valve
- valve plate
- connecting base
- suspension bracket
- hole
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Abstract
A kind of linkage type butterfly valve, comprises valve body, valve rod, valve component and valve plate, is characterized in: also comprise the suspension bracket be made up of two support arms and two supporting sleeves, the internal chamber wall of two support arms and valve body is connected; Valve plate is that the connecting base that the valve plate body of conical surface and center are provided with through hole is formed by outer circumferential face, the intermediate portion of connecting base is installed between two support arms of suspension bracket, two end is rotated respectively and is plugged in two supporting sleeves, the inner hole surface of connecting base is shaped with part internal tooth; Valve rod passes from the through hole of connecting base, which is provided with partial gear; Valve component is made up of valve seat, valve plate seal ring and seal ring gland, and the endoporus of valve seat insert is cone shape hole; The internal chamber wall of valve body is provided with valve seat insert and backup ring; Also comprise the two groups of interval straight-line motion mechanisms connecting valve rod and valve plate.This butterfly valve realizes the keying of valve by the rotation of valve plate and the translation of valve component, and both matching parts do not exist pivoting friction, thus significantly reduce wearing and tearing, improves the sealing of valve, makes valve opening and closing also more laborsaving.
Description
Technical field
The utility model relates to flow control valve technical field, particularly a kind of linkage type butterfly valve.
Background technique
Butterfly valve is also known as reprint valve, and be the simple modulating valve of a kind of structure, it is for the switch control rule of low pressure pipeline medium.Butterfly valve primarily of valve body, the valve seat be arranged on valve body, be movably arranged on the valve plate in valve seat and be arranged on the valve rod that valve body is connected with valve plate.Valve plate is driven to rotate the object reaching and open and close or regulate by rotation valve rod.Valve seat in existing butterfly valve has the valve seat of rigidity valve seat, flexible valve seat and combination of rigidity and flexibility, no matter adopt which kind of valve seat, in the process of valve opening and closedown, the outer circumferential face of valve plate all forms pivoting friction with the fitting surface of valve seat, be easy to the wearing and tearing causing valve plate and valve base sealing position like this, thus the sealing of valve can be reduced, in addition, because valve exists larger frictional force in the process opened and closed, therefore also there is the deficiency opening and closing effort.
Summary of the invention
The utility model provides a kind of wearing and tearing reducing valve plate and valve base sealing position, the sealing of raising valve for solving in known technology the technical problem that exists, and valve opening and closing labour-saving linkage type butterfly valve.
The technological scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of linkage type butterfly valve, comprise valve body, valve rod, valve component and valve plate, it is characterized in that: also comprise suspension bracket, described suspension bracket is made up of left and right two support arm and symmetrical two supporting sleeves be located at outside two support arm one end, two support arms of suspension bracket and the internal chamber wall of valve body are connected, and one end suspension bracket being arranged two supporting sleeves extends to the central position of body cavity; Described valve plate is made up of valve plate body and the connecting base being located at center portion, valve plate body one side end face, the outer circumferential face of valve plate body is conical surface, the center of connecting base is provided with through hole, the intermediate portion of connecting base is installed between two support arms of suspension bracket, two ends of connecting base are rotated respectively and are plugged in two supporting sleeves of suspension bracket, and the inner hole surface of connecting base is shaped with part internal tooth; Described valve rod passes from the through hole in valve plate connecting base, and valve rod is provided with partial gear, and described partial gear can be formed with the part internal tooth in connecting base and engage; Described valve component is movably arranged in the inner chamber of valve body along the axis of valve body, and it is formed by compressing the valve seat of connection, valve plate seal ring and seal ring gland successively, and the endoporus of valve plate seal ring is can form the cone shape hole of wedge-like engagement with the conical surface of valve plate body; The internal chamber wall of valve body is provided with and can forms the valve seat insert of axial seal with valve seat and compress the backup ring of valve seat insert; Also comprise the two groups of interval straight-line motion mechanisms being located at valve rod two ends respectively and connecting valve rod and valve component.
The utility model can also adopt following technical measures:
Often group interval straight-line motion mechanism is made up of eccentric double-cam and link press span, eccentric double-cam is packed on valve rod, one end and the valve component of link press span are connected, the other end of link press span is provided with mounting groove, eccentric double-cam is inlaid in mounting groove, and two camming surface is tangent with two inner side surfaces of mounting groove respectively.
The tapering of valve plate outer circumferential face and the tapering of valve plate ring inner hole are 15 °.
All be provided with sealing cover in the end of two supporting sleeves of boatswain chair, described sealing cover is made up of two points of lid docking.
The advantage that the utility model has and good effect are:
This linkage type butterfly valve, first engage the rotation that can realize valve plate by partial gear on valve rod with the part internal tooth on valve plate connecting base, the sealing that then can realize valve plate and valve component by two groups of interval structure of linear motion compresses, thus realize the closedown of valve, otherwise, first can realize valve plate be separated vertically with valve component by two groups of interval straight line motions, engage the counterrotating that can realize valve plate then by partial gear and part internal tooth, thus realize the unlatching of valve.Rotate and parallel two actions owing to have employed in the opening-closing process of valve, therefore, there is not pivoting friction in the matching part of valve plate and valve component, thus significantly reduction valve plate and valve component seal the wearing and tearing at position, the outer circumferential face of valve plate and the endoporus of valve plate Sealing adopt wedge-like engagement in addition, thus also improve the sealing of valve, in addition, owing to there is not rotation friction, frictional force is significantly reduced, make the keying of valve also more laborsaving.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1;
Fig. 4 is the B-B sectional view of Fig. 1;
Fig. 5 is the schematic perspective view of model utility.
In figure: 1, valve body; 110, inner chamber; 2, valve rod; 3, valve plate; 310, valve plate body; 320, connecting base; 321, intermediate portion; 322, end; 323, part internal tooth; 4, suspension bracket; 410, support arm; 420, supporting sleeve; 5, partial gear; 6, valve component; 610, valve seat; 620, valve plate seal ring; 630, seal ring gland; 7, valve seat insert; 8, backup ring; 9, interval straight-line motion mechanism; 910, eccentric double-cam; 920, link press span; 921, mounting groove; 10, sealing cover.
Embodiment
For summary of the invention of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1-5, a kind of linkage type butterfly valve, be made up of following a few part:
Comprise valve body 1, valve body is provided with the inner chamber 110 passed through for fluid.
Comprise valve rod 2, valve rod is installed on valve body along the radial direction of valve body, and the matching part of valve rod and valve body adopts mechanical seal structure, can referring to prior art.One end of valve rod can external handle or motor and retarder, rotates for actuate valve stem.
Comprise valve plate 3 and valve plate is rotatably supported in the suspension bracket 4 in body cavity.Suspension bracket is made up of left and right two support arm 410 and symmetrical two supporting sleeves 420 be located at outside two support arm one end.Two support arms of suspension bracket and the internal chamber wall of valve body are connected, and one end suspension bracket being arranged two supporting sleeves extends to the central position of body cavity.Described valve plate is made up of valve plate body 310 and the connecting base 320 being located at center portion, valve plate body one side end face.The outer circumferential face of valve plate body is conical surface.The center of connecting base is provided with through hole.Concrete, the axis being parallel of this through hole is in the end face of valve plate body.The intermediate portion 321 of connecting base is installed between two support arms of suspension bracket, like this by the clamping of two support arms, realizes valve plate body location radially in body cavity.Two ends 322 of connecting base are rotated respectively and are plugged in two supporting sleeves of suspension bracket, so just valve plate can be rotatably supported in the inner chamber of valve body.The inner hole surface of connecting base is shaped with part internal tooth 323, concrete, this part internal tooth refers to and only on one section of arc surface, be provided with internal tooth in the inner hole surface of connecting base through hole, considers when reality uses, the abundant unlatching of valve, this section of arc surface gets 90 ° of arc surfaces.Other parts of inner hole surface are light face structure.Described valve rod passes from the through hole in valve plate connecting base, and valve rod is provided with partial gear 5, and partial gear refers to and only on one section of arc surface, be shaped with external tooth on a cylindrical outer circumferential face, and other parts on outer circumferential face are light face structure.Described partial gear can be formed with the part internal tooth in connecting base and engage.Above-mentioned partial gear coordinates with connecting base upper part internal tooth, can form a kind of intermittent motion mechanism along the circumferential direction, and namely when the external tooth on partial gear engages with the internal tooth in connecting base through hole, valve rod energy drive valve plate rotates; When external tooth and internal tooth depart from engagement, when valve rod rotates, valve plate can not be driven to rotate.
Comprise valve component 6, valve component is movably arranged in the inner chamber of valve body along the axis of valve body, and like this under the effect of the external force along valve body axis, valve component can move a certain distance in the inner chamber of valve body.Valve component is formed by compressing the valve seat 610 of connection, valve plate seal ring 620 and seal ring gland 630 successively.Concrete, the outer circumferential face of valve seat and the internal chamber wall of valve body form Spielpassung, coaxially be provided with mounting hole in one end of valve seat, described valve plate seal ring and seal ring gland are pressed in this mounting hole from the inside to the outside according to this, and are fixed with one by threaded fastener and valve seat.The endoporus of valve plate seal ring is cone shape hole, and this cone shape hole can form wedge-like engagement with the conical surface of valve plate body, namely the tapering of conical surface and the tapering of cone shape hole consistent.The internal chamber wall of valve body is provided with and can forms the valve seat insert 7 of axial seal with valve seat and compress the backup ring 8 of valve seat insert.Concrete, can on the internal chamber wall of valve body setting table terrace, one end of valve seat insert is pressed on this step surface, and backup ring is pressed on the other end of valve seat insert, is so just fixed on the internal chamber wall of valve body by valve seat insert.Backup ring by welding mode or other common methods be fixed on the internal chamber wall of valve body.Adopt above-mentioned wedge-like engagement structure, when the end face of valve seat is pressed on the end face of valve seat insert, the outer circumferential face of valve plate and the endoporus of valve plate seal ring just seal compression, thus achieve the closedown of butterfly valve.
Also comprise the two groups of interval straight-line motion mechanisms 9 being located at valve rod two ends respectively and connecting valve rod and valve component.This interval straight-line motion mechanism under the driving of valve rod, can drive valve component realize along valve body axis straight line motion and rest two kinds of motion states.
In said structure, described interval straight-line motion mechanism is preferably as follows structure: often group interval straight-line motion mechanism is made up of eccentric double-cam 910 and link press span 920, eccentric double-cam is packed on valve rod, and one end of link press span is connected with valve component, and the other end of link press span is provided with mounting groove 921.Eccentric double-cam is inlaid in this mounting groove, and two camming surface is tangent with two inner side surfaces of mounting groove respectively.Above-mentioned eccentric double-cam refers to that cam is made up of the camming surface that two are staggered vertically, these two camming surfaces are tangent with two inner side surfaces of mounting groove respectively, thus when appropriate design two camming surfaces, just can ensure when cam rotates with valve rod, make link press span occur resting and straight line motion two states.
In said structure, the tapering of described valve plate outer circumferential face and the tapering of valve plate ring inner hole are preferably 15 °.
In said structure, be provided with sealing cover 10 further respectively in the end of two supporting sleeves of boatswain chair, described sealing cover is made up of two points of lid docking.Adopt sealing cover structure, avoid when butterfly valve is for industrial gas pipeline or the larger applying working condition of other dust loading, what fluid entered into partial gear and the part internal tooth on valve plate connecting base engages position, and affects butterfly valve and normally open and close.
Working principle of the present utility model is:
The utility model completes the opening and closing of butterfly valve by the rotation of valve plate and translation two actions of valve component, while guarantee butterfly valve excellent sealing, considerably reduces the wearing and tearing between valve plate and valve component.Concrete, the closing process of butterfly valve is: first valve rod rotates, be arranged on the partial gear on valve rod and the part internal tooth on valve plate fitting seat endoporus enters engagement, rotated by the engagement drive valve plate of tooth, when valve plate rotates to the position perpendicular to body cavity, partial gear departs from the part internal tooth on valve plate fitting seat endoporus and engages, valve plate stops the rotation, in the process that above-mentioned valve plate rotates, the interval straight-line motion mechanism be made up of eccentric double-cam and link press span is in resting state, and namely the relative position of link press span and valve rod does not change; Then, valve rod continues to rotate, now interval straight-line motion mechanism enters motion state, eccentric double-cam drives valve component to move towards the position of valve seat insert by link press span, when the end face of valve seat is pressed on the end face of valve seat insert, the outer circumferential face of valve plate and the endoporus of valve plate seal ring also just seal compression, thus achieve the closedown of valve.After butterfly valve cuts out, valve rod stops the rotation.The opening process of this butterfly valve is just in time contrary with above-mentioned closing process, i.e. valve rod counterrotating, under the driving of interval straight-line motion mechanism, the valve component distance that first oppositely translation is certain, the endoporus of the outer circumferential face of valve plate and valve plate seal ring is disengaged, engaging then by above-mentioned partial gear and operative gear, drive valve plate counterrotating several angle, thus achieve the unlatching of valve.
Claims (4)
1. a linkage type butterfly valve, comprise valve body, valve rod, valve component and valve plate, it is characterized in that: also comprise suspension bracket, described suspension bracket is made up of left and right two support arm and symmetrical two supporting sleeves be located at outside two support arm one end, two support arms of suspension bracket and the internal chamber wall of valve body are connected, and one end suspension bracket being arranged two supporting sleeves extends to the central position of body cavity; Described valve plate is made up of valve plate body and the connecting base being located at center portion, valve plate body one side end face, the outer circumferential face of valve plate body is conical surface, the center of connecting base is provided with through hole, the intermediate portion of connecting base is installed between two support arms of suspension bracket, two ends of connecting base are rotated respectively and are plugged in two supporting sleeves of suspension bracket, and the inner hole surface of connecting base is shaped with part internal tooth; Described valve rod passes from the through hole in valve plate connecting base, and valve rod is provided with partial gear, and described partial gear can be formed with the part internal tooth in connecting base and engage; Described valve component is movably arranged in the inner chamber of valve body along the axis of valve body, and it is formed by compressing the valve seat of connection, valve plate seal ring and seal ring gland successively, and the endoporus of valve plate seal ring is can form the cone shape hole of wedge-like engagement with the conical surface of valve plate body; The internal chamber wall of valve body is provided with and can forms the valve seat insert of axial seal with valve seat and compress the backup ring of valve seat insert; Also comprise the two groups of interval straight-line motion mechanisms being located at valve rod two ends respectively and connecting valve rod and valve component.
2. linkage type butterfly valve according to claim 1, it is characterized in that: often group interval straight-line motion mechanism is made up of eccentric double-cam and link press span, eccentric double-cam is packed on valve rod, one end and the valve component of link press span are connected, the other end of link press span is provided with mounting groove, eccentric double-cam is inlaid in mounting groove, and two camming surface is tangent with two inner side surfaces of mounting groove respectively.
3. linkage type butterfly valve according to claim 1, is characterized in that: the tapering of valve plate outer circumferential face and the tapering of valve plate ring inner hole are 15 °.
4. linkage type butterfly valve according to claim 1, is characterized in that: be all provided with sealing cover in the end of two supporting sleeves of boatswain chair, and described sealing cover is made up of two points of lid docking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541491.6U CN204239771U (en) | 2014-09-19 | 2014-09-19 | A kind of linkage type butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420541491.6U CN204239771U (en) | 2014-09-19 | 2014-09-19 | A kind of linkage type butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239771U true CN204239771U (en) | 2015-04-01 |
Family
ID=52769270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420541491.6U Expired - Fee Related CN204239771U (en) | 2014-09-19 | 2014-09-19 | A kind of linkage type butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239771U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221768A (en) * | 2015-10-31 | 2016-01-06 | 河北工业大学 | A kind of double rocking lever is without friction hard-sealing butterfly valve |
| CN105736814A (en) * | 2016-05-17 | 2016-07-06 | 单中非 | Three valve rod and gear driven seal valve |
| CN105864497A (en) * | 2016-05-17 | 2016-08-17 | 单中非 | Gear-driven seal valve |
| CN112791542A (en) * | 2020-12-08 | 2021-05-14 | 广东忠能科技集团有限公司 | Plant liquid scrubbing tower |
-
2014
- 2014-09-19 CN CN201420541491.6U patent/CN204239771U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221768A (en) * | 2015-10-31 | 2016-01-06 | 河北工业大学 | A kind of double rocking lever is without friction hard-sealing butterfly valve |
| CN105736814A (en) * | 2016-05-17 | 2016-07-06 | 单中非 | Three valve rod and gear driven seal valve |
| CN105864497A (en) * | 2016-05-17 | 2016-08-17 | 单中非 | Gear-driven seal valve |
| CN105864497B (en) * | 2016-05-17 | 2018-03-13 | 单中非 | Gear drives sealing valve |
| CN105736814B (en) * | 2016-05-17 | 2018-04-13 | 苗木美 | Three valve rod gears drive sealing valve |
| CN112791542A (en) * | 2020-12-08 | 2021-05-14 | 广东忠能科技集团有限公司 | Plant liquid scrubbing tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 Termination date: 20150919 |
|
| EXPY | Termination of patent right or utility model |