CN103016776A - Valve core component and low-torque valve - Google Patents
Valve core component and low-torque valve Download PDFInfo
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- CN103016776A CN103016776A CN2012105260805A CN201210526080A CN103016776A CN 103016776 A CN103016776 A CN 103016776A CN 2012105260805 A CN2012105260805 A CN 2012105260805A CN 201210526080 A CN201210526080 A CN 201210526080A CN 103016776 A CN103016776 A CN 103016776A
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- 238000007789 sealing Methods 0.000 claims abstract description 12
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- 230000013011 mating Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000306 component Substances 0.000 abstract 6
- 230000000694 effects Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 3
- 238000001574 biopsy Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
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- 238000004873 anchoring Methods 0.000 description 1
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- 150000001875 compounds Chemical class 0.000 description 1
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0647—Spindles or actuating means
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/204—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the plugs or parts of the plugs mechanically pressing the seals against the housing
Abstract
The invention discloses a valve core component and a low-torque valve. The valve core component is arranged in a valve body and can rotate around an axis. The valve core component comprises a valve core, two driving components and a transmission part, wherein a concave part is respectively arranged on the top end and the bottom end of the valve core; a radial inwards convex outline is arranged in the concave part; each of the two driving components is provided with a radial outwards convex outline and an elastic convex rib; and the elastic convex ribs and the inner walls of the concave parts are in releasable connection relation. When the valve is closed, the rotation of the driving components can drive the valve core to rotate around the axis and then is converted to radial movement which drives the upper end and the lower end of the valve core to synchronously press and resist a valve base of the valve. When the valve is opened, under the elasticity action of the elastic convex ribs of the driving components, the rotation of the driving components drives the two ends of the valve to synchronously do radial movement to be separated from the valve base of the valve and then the driving components drive the valve core to rotate around the axis. The valve core component and the valve are small in opening and closing torque, simple in structure, good in manufacturing process, simple in operation and good in sealing property.
Description
Technical field
The present invention relates to a kind of mangetic core assembly and adopt the valve of this mangetic core assembly, relate in particular to a kind of for the low moment of torsion valve of the upper internal or external formula of compound IBCS (IBC).
Background technique
For technical parameters such as the latus rectum of optimizing ball valve, pressure, moment of torsion, life-spans, in recent years, various composite valve on-off mechanism has appearred.
Application number is that 200720082066 Chinese patent discloses a kind of low torque ball valve, and it provides a kind of low torque ball valve, comprises that valve body, valve ball, valve seat, supporting base, valve rod, drive unit and valve ball supporting connect.The shortcoming of this ball valve is that driving device structure is complicated, extremely takies the valve body space outerpace; It is more that drive unit relates to component, and assembly process is complicated; Opening and closing rotation angle is 180 degree; Very high to the sealing technology requirement by valve rod and the formed working space of drive unit, traditional sealing means and technique cause leakage easily; In addition, its processing cost is high, is not suitable for the economical environment-protective purpose.
Develop recently a kind of guide-slot type lifting bar ball valve both at home and abroad, S shape guiding groove is arranged on the valve rod, cooperate with pilot pin, after the drive spheroid broke away from valve seat when valve rod was risen, another mistake hour hands half-twist, fully Open valve.When valve rod descends, drive spheroid and turn round 90 ° clockwise, then press to valve seat, realize throttle down.The shortcoming of this valve is to have long S shape guiding groove on the valve rod, during rotary opening and closing, needs valve rod to rise or descend at the guiding groove inner-spiral type, so guiding groove takes up room greatly the shortcoming such as angle of swing is large.
Chinese patent application number is 99124192.4 to have announced the valve opening and closing structure that a kind of expanding switch mechanismfor valves with dual slots holds together, it is by fixed tray, rotating disc and position limit pin combine, when the external force actuate valve stem drives position limit pin together with rotating disc, position limit pin turns clockwise along the track of " circular arc " track on the fixed tray, when rotating to " straight line " track that " circular arc " track links to each other, rotating disc continues to turn clockwise, position limit pin is under the positive action of " support is held together " track on the rotating disc, strut to the fixed tray periphery by " straight line " track track on the fixed tray, at this moment position limit pin together with valve sealing structure spare to valve seat, valve closing.When valve rod is rotated counterclockwise together with rotating disc, under the positive action of " support is held together " track on the rotating disc, the track that position limit pin is pressed first " straight line " track on the fixed tray together with the seal structural part of valve draws in to the fixed tray center, track by " circular arc " track on the fixed tray is rotated counterclockwise again, valve opening, the technical disadvantages of this patent is to use the track of " circular arc connects straight line ", its precision prescribed is high, processing technology is complicated, spool is the spheroid of combination, be difficult to obtain balanced pretightening force, thereby cause spool to damage, shortened life of valve.
Chinese patent 200620105067 has been introduced a kind of track type cock valve, comprise valve body, valve gap, operation piece, valve rod, valve seat, valve plug with valve seat formation conical surface sealing pair, and rail mounted mechanism, rail mounted mechanism has the rail ring of two guiding grooves and has the double-pin plate that two guide finger pins enter described guiding groove and form by being installed in the valve plug neck, also comprise locking nut and the Adjusting ring of adjusting the rail ring mounting point, the shortcoming of this patent is that transmission structures is complicated, extremely takies the valve body space outerpace; It is more that transmission device relates to component, and assembly process is complicated.In addition, because the valve plug of conical surface sealing pair is arranged, and locking nut and the Adjusting ring of adjusting the rail ring mounting point, it needs repeatedly to regulate, so complicated operation.
Summary of the invention
The objective of the invention is a kind of mangetic core assembly and adopt the valve of this mangetic core assembly, not only open and close torque is little for it, and simple in structure, manufacturing process is good, simple to operate and good seal performance.
For achieving the above object, the invention provides a kind of mangetic core assembly, described mangetic core assembly is arranged in the valve body and can rotates around an axis, it is characterized in that:
Described mangetic core assembly comprises spool, places two actuators that be used for to drive spool of spool top and bottom and the driving component that is used for the rotation of valve rod is passed to the actuator that places the spool bottom respectively;
Top and the bottom of described spool are respectively equipped with recess, and the inwall of described recess is formed with radially convex profile, and any one in described two actuators all is provided with radially evagination profile and elasticity convex tendon; And
Described two actuators are respectively at least part of recess that is built in spool top and bottom, but described elasticity convex tendon and described recess inwall have the annexation of clutch, during valve closing, the rotation of described two actuators can at first drive described spool and rotate and then convert to the up and down two ends that drive described spool around described axis and do synchronously and compress moving radially of valve valve seat, and during valve opening, the rotation of described two actuators is under the elastic reaction of the elasticity convex tendon of described actuator, do synchronously and moving radially that the valve valve seat separates with movable valve plug first, then be with movable valve plug to rotate around described axis.
Preferably, described radially convex profile is provided with spacing preiection, initial part, intermediate portion and termination section successively.Wherein, described spacing preiection is used for described radially evagination profile is carried out spacing, so that described radially evagination profile does not break away from described radially convex profile in rotation process; Described initial part is one section inclined-plane, and when described radially evagination profile moved along described initial part, spool was done moving radially of extruding valve seat; Described intermediate portion is one section smooth plane, be used for so that radially the evagination profile rest on intermediate portion; And described termination section is a projection of convex profile end radially, is used for the described radially evagination of backstop profile, prevents that described radially evagination profile from exceeding radially convex profile when rotating.
Preferably, described recess inwall also is provided with spacing pit, described elasticity convex tendon can snap in described spacing pit or break away from described spacing pit, when described convex tendon snaps in described spacing pit, the rotation of described actuator can drive described spool and rotate around described axis, and when described convex tendon broke away from described spacing pit, under the mating reaction of described evagination profile and described convex profile, described spool was done the moving radially of valve seat that compresses or break away from valve.
Preferably, the actuator that is positioned at described spool top has plate-like body, is provided with the attachment hole that is connected for valve rod at the center of described plate-like body, and the circumferential profile of described plate-like body is provided with described radially evagination profile and two described elasticity convex tendons.
Preferably, the actuator that is positioned at described spool bottom has plate-like body, the plate-like body circumferential profile is provided with described radially evagination profile and two described elasticity convex tendons, extend a cylindrical body from described plate-like body lower surface center one, and extending locating column from described plate-like body upper surface center one, described locating column is connected with the rotation with valve rod with described driving component and passes to actuator.
Preferably, the diapire of the described recess of described spool top and bottom is provided with microscler positioning hole, and the bottom of spool is provided with boss, and described boss periphery is provided with the spacing projection that stops that matches with the spacing damp block that is arranged in valve, is used for preventing that valve core rotation from surpassing predetermined angle.
Preferably, described driving component has the U-shaped body, is respectively equipped with positioning hole at two arms of U-shaped body, the shape of cross section of described positioning hole respectively with valve rod on the shape of cross section of locating column and the shape of cross section of the locating column on the actuator be complementary.
Preferably, being positioned at the attachment hole that the center of plate-like body of the actuator on described spool top arranges is splined hole, is used for the spline fitted on the valve rod with valve, rotates so that can drive the actuator on described spool top during rotation valve rod.
The present invention also provides a kind of low moment of torsion valve, comprise valve body, positioning rod, valve seat and mangetic core assembly, described valve body comprises: the entrance and exit with same level axis, between described entrance and exit, form an inner space to hold described mangetic core assembly, be formed with described valve seat in the entrance inboard; On valve body upper end wall and lower end wall along with the perpendicular formed valve rod hole of a vertical axis direction and the lower end through hole of described horizontal axis; Described valve rod passes described valve rod hole and engages with described mangetic core assembly, described positioning rod sealing is contained in the through hole of described lower end, described mangetic core assembly can rotate around described vertical axis, and described spool and described valve seat are sealed and matched separably, it is characterized in that:
Described mangetic core assembly is above-mentioned mangetic core assembly; When described valve rod drives the actuator rotation, described radially evagination profile and radially the convex profile match so that described spool is respectively in open mode, change between closed condition and buttoned-up status in advance.
In one preferred embodiment, described low moment of torsion valve is ball valve.
In mangetic core assembly of the present invention and the valve, because when spool rotates at the state of closing or opening, spool does not contact with valve seat or valve body, be in the hovering state, reduce the frictional force of their contacts, the moment of torsion (only have when the moment that valve body is closed and just understand the lateral extrusion spherical valve core) that reduce to rotate, this is just so that valve rod very little of moment of torsion in the process of rotation, thereby reaches the effect of low moment of torsion opening and closing valve.In addition, the sealing of valve is fine.
Description of drawings
Fig. 1 is the exploded perspective view that mangetic core assembly according to an embodiment of the invention and valve are shown;
Fig. 2 is the sectional view that mangetic core assembly according to an embodiment of the invention and valve are shown;
Fig. 3 is the stereogram that the valve body of mangetic core assembly according to an embodiment of the invention and valve is shown;
Fig. 4 is the stereogram that the valve rod of mangetic core assembly according to an embodiment of the invention and valve is shown;
Fig. 5 a-5b illustrates an embodiment's the structural representation of the actuator that is positioned at the spool top of mangetic core assembly according to an embodiment of the invention and valve, and wherein, Fig. 5 a is stereogram, and Fig. 5 b is plan view;
Fig. 6 a-6b illustrates an embodiment's the structural representation of the actuator that is positioned at the spool bottom of mangetic core assembly according to an embodiment of the invention and valve, and wherein, Fig. 6 a is stereogram, and Fig. 6 b is plan view;
Fig. 7 a-7d illustrates an embodiment's the structural representation of the spool of the mangetic core assembly of first embodiment according to the invention and valve, and wherein, Fig. 7 a and 7c are stereograms, and Fig. 7 b is plan view, and Fig. 7 d is worm's eye view;
Fig. 8 illustrates biopsy cavity marker devices so that the sectional view when the relative position of the limit structure of the limit structure of valve core rotation spool bottom when the closed position and valve body to be shown;
Fig. 9 illustrates biopsy cavity marker devices so that the sectional view when the relative position of the limit structure of the limit structure of valve core rotation spool bottom during to the fully open position and valve body to be shown;
Figure 10 is the stereogram that the driving component of mangetic core assembly according to an embodiment of the invention and valve is shown;
Figure 11 a and 11b are the plan views that the relative position of the spool of mangetic core assembly according to an embodiment of the invention and valve and actuator is shown, and wherein the elasticity convex tendon on the actuator snaps in the pit of recess of spool; And
Figure 12 a and 12b are the plan views that the relative position of the spool of mangetic core assembly according to an embodiment of the invention and valve and actuator is shown, and wherein the elasticity convex tendon on the actuator breaks away from the pit of the recess of spool.
Embodiment
At first need to prove, the specific embodiment of the present invention is not limited to following embodiment, those skilled in the art should understand the present invention from the spirit that following embodiment embodies, each technical term can be done the most wide in range understanding based on Spirit Essence of the present invention, and for example valve rod is be used to the parts of controlling the spool action.
Below with reference to accompanying drawing preferred embodiment of the present invention is elaborated.It should be noted that same or analogous member uses the same reference numerals to represent among the figure; And for for the purpose of expression is clear, wherein relevant schematic figure has omitted relevant member.Herein, upper and lower, left and right refer to from drawing up, below, left and right-hand direction, unless stated otherwise.
Fig. 1 illustrates the mangetic core assembly of first embodiment according to the invention and the exploded perspective view of valve.Sectional view after Fig. 2 illustrates valve 100 among Fig. 1 and assembles.In the present embodiment, valve is ball valve.As shown in Figure 1, ball valve 100 comprise valve body 1, spool 2, valve seat 3, valve rod 4, upper actuator 5 ', lower actuator 5 ", positioning rod 6, O RunddichtringO 7, valve gap 10, seal ring 9, seal ring 11, buckle 12 and driving component 13.Wherein, spool 2, upper actuator 5 ', lower actuator 5 ", and driving component 13 consists of mangetic core assembly of the present invention.
The left end of valve body 1 (orientation from figure, as follows) is by valve gap 10 and seal ring 11 cappings, and valve seat 3 is built in the valve body 1, the actuator 5 of spool 2 by being arranged on its underpart, and " and positioning rod 6 is arranged in the valve body 1.The right-hand member of valve body 1 is connected with the connecting head of flange 8(or liquid-container inner container bags) so that spool 2 is sealed in the valve body 1, between flange 8 and the valve body 1 O-ring seals 9 is set.Valve rod 4 and actuator 5 ' be connected, and by driving component 13 and actuator 5 " is connected, and actuator 5 ' and actuator 5 " cooperates with spool 2 respectively, so that when rotation valve rod 4, spool 2 works move accordingly, hereinafter will further describe.
Fig. 3 illustrates the stereogram of valve body 1.Shown in Fig. 3 and Fig. 1 and 2, valve body 1 is the housing with a upper end and a lower end and left side and right side, is formed with an inner space in the housing, to hold spool 2, valve seat 3, actuator 5' and 5 ", the part of driving component 13 and valve rod 2.The left and right side of housing is along respectively formation and container and the outside entrance 1a that is communicated with and outlet 1b of a horizontal axis (not shown), be provided with valve seat 3 along this horizontal axis on its entrance 1a inboard, the upper and lower end of valve body 1 is along being formed with respectively valve rod hole 1c and lower end through hole 1d with the perpendicular described vertical axis (not shown) of described horizontal axis.Be disposed radially limited location damp block 1e, 1f in the bottom of valve body 1, the both sides of lower end through hole 1d, spacing damp block 1e, 1f stop that with spool 2 spacing projection cooperates (hereinafter with more detailed description) respectively, thereby so that spool 2 can only in valve body 1, in 90 degree scopes, rotate.
As shown in Figure 2, valve rod 4 is placed among the described valve rod hole 1c rotationally.Positioning rod 6 is contained in the lower end through hole 1d of valve body 1, and fixing and its upper surface of the wall sealing of passing through O-ring seals 7 and this lower end through hole 1d of positioning rod 6 " contacts with actuator 5.It is to be noted, although in the present embodiment, positioning rod is independent member, but one skilled in the art should appreciate that, positioning rod also can be formed on the bottom of valve body, or other structures, as long as can be in support for drive member 5 " in provide rotational freedom around vertical axis to actuator.
Fig. 4 is the stereogram that the valve rod of mangetic core assembly according to an embodiment of the invention and valve is shown.As shown in Figure 4, valve rod 4 upper ends are provided with handle 41 integratedly, pull handle 41 and can be with ovable valve stem 4 to rotate around a vertical axis.The middle part of valve rod 4 is formed with seal groove 42 and buckle slot 43, but in the O-ring seals 7 embedding sealing grooves 42, leaks from valve rod to prevent liquid.Buckle slot 43 cooperates with buckle 12, and valve rod 4 is played the spacing effect that stops, valve rod 4 can not be extracted from valve body 1.Valve rod 4 lower ends are formed with spline 44, spline 44 can with actuator 5' in splined hole 51'(a) cooperate referring to Fig. 5 so that when rotary valve rod 4, the rotation of valve rod 4 can drive actuator 5 ' along with rotation.
The effect that it should be noted that spline 44 and splined hole 51' be the rotation with valve rod 4 pass to actuator 5 ', actuator 5' is rotated thereupon, one skilled in the art will understand that and also can adopt other structures to realize above-mentioned gearing.For example, valve rod 4 lower ends are that cross section is done triangularity, square etc. transmission unit, and correspondingly are provided with the driving holes such as tri-angle-holed, square opening among the actuator 5'.Also extend a guide rod 45 in the lower end of spline 44, be used for cooperating with microscler positioning hole on the spool 2, guide with the moving direction to spool, hereinafter with more detailed description.Also be formed with locating column 46 in the guide rod lower end, the cross section of locating column 46 is square, and locating column 46 is used for cooperating (hereinafter will be described in detail) with the positioning hole of driving component 13, rotates so that the rotation of valve rod 4 drives driving component 13.The shape of cross section that it should be noted that locating column 46 can be other shapes such as triangle, Hexagon, spline, and at this moment, the positioning hole shape in the driving component 13 also is arranged to the shape of cross section coupling with locating column 46.
Fig. 5 a illustrates the three-dimensional structure diagram of actuator 5'.Fig. 5 b illustrate actuator 5 ' plan view.Shown in Fig. 5 a and 5b, actuator 5' is plate-like piece, its center be provided with splined hole 51 ', actuator 5 ' exterior contour be formed with evagination profile 52' radially and with two elasticity convex tendons 53 that radially evagination profile 52' is relative ' and 54 '.Radially evagination profile 52' matches with radially convex profile on the spool 2, simultaneously elasticity convex tendon 53 ' and 54 ' can with spool 2 on spacing pit cooperate separably, thereby the low moment of torsion of realizing valve opens and closes, and hereinafter will further describe.
Fig. 6 a illustrates actuator 5 " three-dimensional structure diagram.Fig. 6 b illustrates actuator 5 " worm's eye view.Shown in Fig. 6 a-6b, actuator 5 " has plate-like body 51 ", the cross section of "; locating column 55 " is square to extend locating column 55 from plate-like body upper surface center one, locating column 55 " is used for cooperating (hereinafter will be described in detail) with another positioning hole of driving component 13, " rotates so that the rotation of driving component 13 drives actuator 5.The it should be noted that locating column 55 shape of cross section coupling of " shape of cross section can be other shapes such as triangle, Hexagon, spline, at this moment, described another positioning hole shape in the driving component 13 also is arranged to and locating column 52 ".
From plate-like body 51 " the center one of lower surface is extended a cylindrical body 56 ", the center of locating column 55 " and cylindrical body 56 " is on same axis.Cylindrical body 56 " can be contained among the lower end through hole 1d of valve body 1 bottom, so that actuator 5 " can the rotation take the central axis of lower end through hole as spin axis.Plate-like body 51 " circumferential profile identical with the circumferential profile of actuator 5'.That is, plate-like body 51 " circumferential profile comprise radially evagination profile 52 " and two elasticity convex tendons 53 ", 54 ".
Fig. 7 a-7d illustrates the concrete structure of spool 2 according to an embodiment of the invention.Shown in Fig. 7 a-7c, in the present embodiment, spool 2 is hollow ball shell roughly, have ball 21 and have an axis (vertical axis, not shown), spool can around this axis rotation, be provided with recess 22 along this vertical axis direction at the spherical shell top end wall, the sidewall of recess 22 is provided with radially convex profile 23 and two spacing pits 24,25, is provided with microscler positioning hole 26 at the diapire of recess.
Radially convex profile 23 comprises spacing preiection 23a, initial part 23b, intermediate portion 23c and the 23d of termination section that faces mutually with spacing pit 24 and 25.Spacing preiection 23a is a projection on the sidewall of recess 22, be used for diameter convex profile 52' so that spool is carried out spacing so that radially evagination profile 52' does not break away from radially convex profile 23 in rotation process.Initial part 23d is one section inclined-plane, and when the radially evagination profile of spool moves along initial part (when spool and actuator push mutually), spool is done moving radially of extruding valve seat.Intermediate portion is one section smooth plane, its act as so that radially the evagination profile can stablize and rest on the intermediate portion still.Termination section is a projection of convex profile 23 ends radially, is used for radially evagination profile 23 of backstop, prevents from exceeding when radially evagination profile 23 rotates radially convex profile.When the radially evagination profile of spool was positioned at intermediate portion 23c, the radially evagination profile meeting of spool contacted with the 23d of termination section, and because the step surface of termination section spacing makes actuator 5 and spool 2 be in relative static state, spool compresses valve seat, valve closing.
Shown in Fig. 7 c, the bottom of ball is provided with boss 27, and boss 27 peripheries are provided with the spacing projection 28,29 that stops that matches with spacing damp block 1e, the 1f of valve body 1.The spacing angle of projection between 28,29 that stop is 90 degree.In the valve closing process, when spool forwarded pre-closed position to, the spacing projection 28 that stops cooperated (as shown in Figure 8) with spacing damp block 1f, thereby prevented that valve core rotation from surpassing 90 and spending (or preventing that valve core rotation from surpassing predetermined angle).In the valve open process, when spool forwarded the fully open position to, the spacing projection 29 that stops cooperated (as shown in Figure 9) with spacing damp block 1e, thereby prevented that valve core rotation from surpassing 90 and spending.
Shown in Fig. 7 d, the middle part of boss 27 is provided with recess 22 ", recess 22 " sidewall be provided with radially convex profile 23 " and two pits 24 ", 25 ", recess 22 " diapire be provided with microscler positioning hole 26 ".Radially the convex profile 23 " shape identical with radially convex profile 23 on the spool top, also comprise successively spacing preiection 23 " a, initial part 23 " b, intermediate portion 23 " c and termination section 23 " d.Microscler positioning hole 26 is " identical with microscler positioning hole 26 shapes on spool top.
Figure 10 illustrates the stereogram according to an embodiment of the driving component 13 of mangetic core assembly of the present invention.As shown in Figure 8, driving component 13 has roughly U-shaped body 131, is respectively equipped with positioning hole 132 and positioning hole 133 at two arms of U-shaped body 131, and positioning hole 132,133 shape of cross section are quadrilateral.But one skilled in the art should appreciate that, positioning hole 132,133 shape of cross section also can be other polygonal shapes or irregularly shaped such as triangle, if its respectively with valve rod 4 on the shape of cross section of locating column 44 and the shape of cross section of actuator 5 " on locating column 55 " be complementary.Should point out that driving component 13 also can adopt other shape and structures, as long as it can be delivered to the rotation of valve rod actuator 5' and actuator 5 ".
After assembling is finished, as shown in Figure 2, after valve rod 4 passes the valve rod hole 1c on valve body 1 top, then pass the splined hole 51' of actuator 5', and be inserted in the microscler positioning hole 26 of spool 2, and the locating column 46 of valve stem end inserts in the driving hole 132 of driving component 13.Sealed by O RunddichtringO 7 between the hole wall of valve rod 4 and valve body 1.Buckle slot 43 on the valve rod 4 is snapped with fastener 12, and valve rod is played the spacing effect that stops, valve rod 4 can not be extracted from valve body.Spline 44 insertion actuators 5 on the valve rod 4 ' in, to realize transmission.The guide rod 45 of valve rod is contained in the microscler positioning hole 26, and the cooperation of microscler positioning hole 26 and valve rod guide rod 45 is mainly to the effect that (namely doing radial motion along microscler positioning hole) plays forced guiding that moves radially of spool.
Actuator 5 ' be placed in the recess 22 on spool 2 tops, elasticity convex tendon 53 and 54 end snap in respectively in spacing pit 24 and 25, and impose on the certain elastic pressure of radially convex profile on spool 2 tops because being squeezed.
Therefore, in the less situation of the rotational resistance of spool 2, the combination of the end of the pit by spool 2 tops and the two elasticity convex tendons of actuator 5', and the pit 24 by spool 2 bottoms ", 25 " and actuator 5 " the combination of end of two elasticity convex tendons, actuator 5 ' and actuator 5 " can be with simultaneously movable valve plug 2 to rotate synchronously.
When valve was switched to closed condition by open mode, valve rod rotated, and valve rod is lived by means of square location and the cooperation of the square opening of driving component, drives driving component driving bottom actuator.Valve is when open mode, and spool does not contact with valve seat, and the resistance that is subject to during rotation is the frictional force of the revolute pair in each link, so rotational resistance is very little, almost can ignore.Be positioned at being connected so that two actuator Timing Belt movable valve plugs rotations (shown in Figure 11 a and 11b) of two pits of the recess of end and the spool top of the elasticity convex tendon of the actuator of being connected with the bottom on the spool top being connected with the bottom this moment, after spool turns over roughly 90 degree, the just contact or aim at valve seat of the closed end of spool, and spool and valve body at the spacing barrier structure of bottom so that spool can only in valve body, in the slewing areas of 90 degree, rotate.After spool turns over roughly 90 degree, increase moment of rotation at valve rod, the end of the elasticity convex tendon of the actuator on spool top and the bottom and the pit of recess are thrown off (shown in Figure 12 a and 12b), so that actuator radially the evagination profile along spool radially the convex profile rotate, thereby so that spool moves radially (acquisition moves radially component) in two ends up and down synchronously, this moment spool top and bottom the recess of actuator and spool top and bottom in microscler positioning hole cooperate moving radially of spool played the forced guiding effect, when evagination profile radially rotates termination section from the initial part of cam contour, spool applies predetermined pressure to valve seat around here, the two presses tactile according to predetermined pressure mutually, the conductive channel cut-off of valve, thus valve cuts out.
When needs are opened valve, the backward rotation valve rod, the rotation of valve rod drives the actuator backward rotation by driving component, because the pressure of spool and valve seat is touched larger frictional force is arranged, spool can be along with actuator rotates, the radially evagination profile of actuator forwards initial part to from the termination section of convex profile radially, the elasticity convex tendon provides reposition force, make between actuator and the recess and reset to initial position, therefore the pressure that is applied to spool this moment disappear, and spool separates with valve seat at two ends up and down synchronously, and the frictional force between them also so thereupon disappears, poppet shaft is to resetting, thereby reaches pre-opening state.At this moment, owing to be provided with spacing preiection on the inner circle wall of recess, during the driving component backward rotation, radially the evagination profile just touch behind the spacing preiection can not be more relative spool backward rotation, and this moment, the end of two elasticity convex tendons also was embedded in the pit of inner circle wall of recess, spacing preiection and the interaction force between the inner circle wall pit of the interaction of evagination profile and elasticity convex tendon and recess radially, with so that driving component band movable valve plug backward rotation 90 degree to the state that makes the valve passage conducting.
In mangetic core assembly of the present invention and the valve, since spool close in advance or opening process in, spool does not contact with valve seat or valve body, be in the hovering state, reduce the frictional force of their contacts, the moment of torsion (only have when the moment that valve body is closed and just understand the lateral extrusion spherical valve core) that reduce to rotate, this is just so that valve rod very little of moment of torsion in the process of rotation, thereby reaches the effect of low moment of torsion opening and closing valve.In addition, the sealing of valve is fine.
The valve that it should be noted that previous embodiment of the present invention is take ball valve as example, but also can be with structure applications of the present invention to other valves, for example butterfly valve.Each member of the present invention also can adopt other structures and not break away from spirit of the present invention.For example, handle and valve rod can be separate parts separately, also can be the parts of one, valve rod can adopt splined with connecting of actuator, also can adopt other connecting modes well known by persons skilled in the art such as scyewed joint, anchoring connection, welding.
One skilled in the art will understand that to present invention may be embodied in other particular form, and do not break away from its spirit or inner characteristic.Above-described embodiment all will be understood as that it only is exemplary with nonrestrictive in all respects.Therefore, scope of the present invention is limited by the specification of appending claims rather than front.All fall into the implication of claims equivalent and the change in the scope all will be included within the scope of claims.
Claims (10)
1. mangetic core assembly, described mangetic core assembly are arranged in the valve body and can rotate around an axis, it is characterized in that:
Described mangetic core assembly comprises spool, places two actuators that be used for to drive spool of spool top and bottom and the driving component that is used for the rotation of valve rod is passed to the actuator that places the spool bottom respectively;
Top and the bottom of described spool are respectively equipped with recess, and the inwall of described recess is formed with radially convex profile, and any one in described two actuators all is provided with radially evagination profile and elasticity convex tendon; And
Described two actuators are respectively at least part of recess that is built in spool top and bottom, but described elasticity convex tendon and described recess inwall have the annexation of clutch, during valve closing, the rotation of described two actuators can at first drive described spool and rotate and then convert to the up and down two ends that drive described spool around described axis and do synchronously and compress moving radially of valve valve seat, and during valve opening, the rotation of described two actuators is under the elastic reaction of the elasticity convex tendon of described actuator, do synchronously and moving radially that the valve valve seat separates with movable valve plug first, then be with movable valve plug to rotate around described axis.
2. mangetic core assembly according to claim 1, it is characterized in that: described radially convex profile is provided with spacing preiection, initial part, intermediate portion and termination section successively, wherein,
Described spacing preiection is used for described radially evagination profile is carried out spacing, so that described radially evagination profile does not break away from described radially convex profile in rotation process;
Described initial part is one section inclined-plane, and when described radially evagination profile moved along described initial part, spool was done moving radially of extruding valve seat;
Described intermediate portion is one section smooth plane, be used for so that radially the evagination profile rest on intermediate portion; And
Described termination section is a projection of convex profile end radially, is used for the described radially evagination of backstop profile, prevents that described radially evagination profile from exceeding radially convex profile when rotating.
3. mangetic core assembly according to claim 1, it is characterized in that: described recess inwall also is provided with spacing pit, described elasticity convex tendon can snap in described spacing pit or break away from described spacing pit, when described convex tendon snaps in described spacing pit, the rotation of described actuator can drive described spool and rotate around described axis, and when described convex tendon breaks away from described spacing pit, under the mating reaction of described evagination profile and described convex profile, described spool is done the moving radially of valve seat that compresses or break away from valve.
4. mangetic core assembly according to claim 1, it is characterized in that: the actuator that is positioned at described spool top has plate-like body, be provided with the attachment hole that is connected for valve rod at the center of described plate-like body, the circumferential profile of described plate-like body is provided with described radially evagination profile and two described elasticity convex tendons.
5. mangetic core assembly according to claim 1, it is characterized in that: the actuator that is positioned at described spool bottom has plate-like body, the plate-like body circumferential profile is provided with described radially evagination profile and two described elasticity convex tendons, extend a cylindrical body from described plate-like body lower surface center one, and extending locating column from described plate-like body upper surface center one, described locating column is connected with the rotation with valve rod with described driving component and passes to actuator.
6. mangetic core assembly according to claim 1, it is characterized in that: the diapire of the described recess of described spool top and bottom is provided with microscler positioning hole, and the bottom of spool is provided with boss, described boss periphery is provided with the spacing projection that stops that matches with the spacing damp block that is arranged in valve, is used for preventing that valve core rotation from surpassing predetermined angle.
7. mangetic core assembly according to claim 1, it is characterized in that: described driving component has the U-shaped body, two arms at the U-shaped body are respectively equipped with positioning hole, the shape of cross section of described positioning hole respectively with valve rod on the shape of cross section of locating column and the shape of cross section of the locating column on the actuator be complementary.
8. mangetic core assembly according to claim 4, it is characterized in that: described attachment hole is splined hole, is used for the spline fitted on the valve rod with valve, rotates so that can drive the actuator on described spool top during rotation valve rod.
9. one kind low moment of torsion valve, comprise valve body, positioning rod, valve seat and mangetic core assembly, described valve body comprises: have the entrance and exit of same level axis, form an inner space to hold described mangetic core assembly between described entrance and exit, be formed with described valve seat in the entrance inboard; On valve body upper end wall and lower end wall along with the perpendicular formed valve rod hole of a vertical axis direction and the lower end through hole of described horizontal axis; Described valve rod passes described valve rod hole and engages with described mangetic core assembly, described positioning rod sealing is contained in the through hole of described lower end, described mangetic core assembly can rotate around described vertical axis, and described spool and described valve seat are sealed and matched separably, it is characterized in that:
Described mangetic core assembly is such as each described mangetic core assembly in the claim 1 to 8; When described valve rod drives the actuator rotation, described radially evagination profile and radially the convex profile match so that described spool is respectively in open mode, change between closed condition and buttoned-up status in advance.
10. low moment of torsion valve according to claim 9, it is characterized in that: described low moment of torsion valve is ball valve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526080.5A CN103016776B (en) | 2012-12-07 | 2012-12-07 | Mangetic core assembly and low moment of torsion valve |
| PCT/CN2013/088230 WO2014086249A1 (en) | 2012-12-07 | 2013-11-29 | Valve core assembly and low-torque valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210526080.5A CN103016776B (en) | 2012-12-07 | 2012-12-07 | Mangetic core assembly and low moment of torsion valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016776A true CN103016776A (en) | 2013-04-03 |
| CN103016776B CN103016776B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210526080.5A Active CN103016776B (en) | 2012-12-07 | 2012-12-07 | Mangetic core assembly and low moment of torsion valve |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103016776B (en) |
| WO (1) | WO2014086249A1 (en) |
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| CN103759032A (en) * | 2014-01-08 | 2014-04-30 | 上海鸿研物流技术有限公司 | Valve |
| CN104595517A (en) * | 2014-12-31 | 2015-05-06 | 上海鸿研物流技术有限公司 | Valve and valve element component thereof |
| CN104864113A (en) * | 2015-04-18 | 2015-08-26 | 张新丰 | Rigidity-seal ball valve with guide rail |
| CN105805321A (en) * | 2016-01-22 | 2016-07-27 | 上海鸿研物流技术有限公司 | Valve |
| CN107420559A (en) * | 2017-08-02 | 2017-12-01 | 上海鸿研物流技术有限公司 | Valve |
| CN107448669A (en) * | 2016-05-31 | 2017-12-08 | 中核新能核工业工程有限责任公司 | A kind of cam mechanism Its Track Design method realized valve and steadily closed |
| CN111156328A (en) * | 2020-01-20 | 2020-05-15 | 上海亚奥阀门有限公司 | Forged steel hard seal floating ball valve |
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| CN111156328A (en) * | 2020-01-20 | 2020-05-15 | 上海亚奥阀门有限公司 | Forged steel hard seal floating ball valve |
| CN111156328B (en) * | 2020-01-20 | 2021-07-06 | 上海亚奥阀门有限公司 | Forged steel hard seal floating ball valve |
| CN112128443A (en) * | 2020-10-30 | 2020-12-25 | 杭州鼎升机械有限公司 | A breather valve for IBC bucket |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2014086249A1 (en) | 2014-06-12 |
| CN103016776B (en) | 2015-08-26 |
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Denomination of invention: Valve core component and low-torque valve Effective date of registration: 20200629 Granted publication date: 20150826 Pledgee: Bank of Hangzhou Limited by Share Ltd. Shanghai branch Pledgor: Shanghai Hongyan Returnable Transit Packagings Co.,Ltd. Registration number: Y2020310000034 |
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Address after: Room 303-16, building 33, 680 Guiping Road, Xuhui District, Shanghai 200233 Patentee after: Shanghai box Intelligent Technology Co.,Ltd. Address before: Room 1105, Building 20, 487 Tianlin Road, Xuhui District, Shanghai, 2003 Patentee before: SHANGHAI HONGYAN RETURNABLE TRANSIT PACKAGINGS Co.,Ltd. |
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Denomination of invention: Valve core components and low torque valves Effective date of registration: 20230801 Granted publication date: 20150826 Pledgee: China Minsheng Banking Corp Shanghai branch Pledgor: Shanghai box Intelligent Technology Co.,Ltd. Registration number: Y2023310000423 |