CN106812968A - Plug valve - Google Patents
Plug valve Download PDFInfo
- Publication number
- CN106812968A CN106812968A CN201610065214.6A CN201610065214A CN106812968A CN 106812968 A CN106812968 A CN 106812968A CN 201610065214 A CN201610065214 A CN 201610065214A CN 106812968 A CN106812968 A CN 106812968A
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- Prior art keywords
- sleeve
- valve
- drive
- valve element
- pilot sleeve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- 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
- F16K5/02—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 conical surfaces; Packings therefor
- F16K5/0242—Spindles and 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
- F16K5/02—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 conical surfaces; Packings therefor
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention provides a kind of plug valve, including：Pedestal；The body of rod, is slidably arranged in pedestal；Pilot sleeve, is set in outside the body of rod, and gathering sill is provided with pilot sleeve, and gathering sill is projected as U-shaped, V-shaped, flat V-shaped or flat U-shaped on longitudinal midplane of pilot sleeve；Drive sleeve, relative to pilot sleeve axial limiting, and relative to pilot sleeve rotatably arranged with being provided with driver slot in drive sleeve, driver slot is projected as polygonal hole on longitudinal midplane of drive sleeve, and two trough rims of polygonal hole correspondence U-shaped form two driving hypotenuses；First bearing pin, along being radially arranged in the body of rod for pilot sleeve, at least one end of the first bearing pin is located in gathering sill and driver slot simultaneously；Drive mechanism, with drive sleeve drive connection, drives drive sleeve to be rotated relative to pilot sleeve.Plug valve of the invention, can solve the problem that the relatively low problem of the service life of plug valve in the prior art.
Description
Technical field
The present invention relates to switching valve technical field, more particularly, to a kind of plug valve.
Background technology
In the prior art, plug valve is the compression of the lifting and valve element that valve element is realized using drive device,
So as to realize the switching and the sealing that resets of switching valve.Drive device includes motor and drive mechanism, switching valve
Commutation process rely primarily on motor rotate through drive mechanism transmission, be converted realization.
There is a kind of plug valve in the prior art, coordinated with valve rod by fairlead, realize valve rod
Rotating down pressing is acted, and then drives valve core rotation, the state that this structure can conveniently realize plug valve to cut
Change, and simple structure, cost is relatively low, but carried out simultaneously during rotation and pressing action due to valve rod,
Therefore when valve rod is rotated, can band movable valve plug together rotate, due to now valve element not yet completely and valve body
Inwall disengage, therefore larger friction is produced between meeting and valve body, not only result in driving force and increase,
And the abrasion of valve element can be caused, and under long-term use, the service life of meeting serious curtailment valve element, and then reduce
The service life of whole plug valve.
The content of the invention
It is an object of the invention to provide a kind of plug valve, with solve the service life of plug valve in the prior art compared with
Low problem.
In order to solve the above technical problems, as one aspect of the present invention, there is provided a kind of plug valve, including：
Pedestal；The body of rod, is slidably arranged in pedestal；Pilot sleeve, is fixedly installed on the first end of pedestal, and cover
It is located at outside the body of rod, gathering sill is provided with pilot sleeve, gathering sill is on longitudinal midplane of pilot sleeve
It is projected as U-shaped or flat U-shaped；Drive sleeve, relative to pilot sleeve axial limiting, with fairlead
Jacket casing connects, and relative to pilot sleeve rotatably arranged with being provided with drive sleeve and be engaged with gathering sill
Driver slot, driver slot is projected as polygonal hole, polygonal hole pair on longitudinal midplane of drive sleeve
Two trough rims of U-shaped are answered to form two driving hypotenuses, two spacing of driving hypotenuse are along away from gathering sill
Successively decrease in the direction of bottom；First bearing pin, along being radially arranged in the body of rod for pilot sleeve, the first bearing pin is extremely
Few one end is located in gathering sill and driver slot simultaneously；Drive mechanism, with drive sleeve drive connection, drives
Drive sleeve is rotated relative to pilot sleeve.
Further, drive sleeve is set in outside pilot sleeve, and stop lug, seat are provided with drive sleeve
Cover plate is fixedly installed on body, cover plate lid is pressed in stop lug, coordinated to actuating sleeve tubular with pilot sleeve
Into axial limiting.
Further, the inwall of drive sleeve is close to the outer wall setting of pilot sleeve；Or polygon for trapezoidal or
Triangle.
Further, drive sleeve is set in pilot sleeve, and drive sleeve is formed with catching step, is oriented to
Socket cover is located on catching step, and forms axial limiting to drive sleeve；Or drive sleeve and pilot sleeve
Limited location pin is disposed radially on one of them, circumferentially arranged limited location groove, spacer pin on another
Nail is arranged in stopper slot, and limits the moving axially relative of drive sleeve and pilot sleeve.
Further, pedestal has taper valve pocket, and plug valve also includes being rotatably arranged in taper valve pocket
Valve element, the bottom of valve element is provided with elastic mechanism, and taper valve pocket is up-small and down-big back taper valve pocket, is oriented to
The U-shaped opening of groove side where the valve element, two larger ends of spacing of driving hypotenuse of driver slot are towards valve
Side where core, the body of rod is connected to the top of valve element, and circumferentially fixed relative to valve element, to drive valve element edge to lead
Moved to the axial and circumferential of sleeve.
Further, when valve element and the body of rod move upward to extreme position, edge is led between the body of rod and valve element
There is gap to the axial direction of sleeve.
Further, pedestal has taper valve pocket, and plug valve also includes being rotatably arranged in taper valve pocket
Valve element, taper valve pocket is up-small and down-big back taper valve pocket, and the U-shaped opening of gathering sill is where valve element
Side, towards side where valve element, the body of rod is arranged on valve element at two larger ends of spacing of driving hypotenuse of driver slot
Top, and be fixedly connected with valve element, drive valve element to be moved along the axial and circumferential of pilot sleeve.
Further, pedestal has taper valve pocket, and plug valve also includes being rotatably arranged in taper valve pocket
Valve element, taper valve pocket is up big and down small positive cone valve pocket, where the U-shaped opening towards valve element of gathering sill
Side, away from side where valve element, the body of rod is arranged on valve element at two larger ends of spacing of driving hypotenuse of driver slot
Top, and be fixedly connected with valve element, drive valve element to be moved along the axial and circumferential of pilot sleeve.
Further, pedestal includes the upper valve base and lower valve base that are fixedly connected, and upper valve base and lower valve base form cone
Shape valve pocket.
Further, plug valve also includes compressing the clamping sleeve of filler, and pilot sleeve and clamping sleeve are integrally formed；
Or driver slot is reserved with circumferential sky swing angle degree, when drive sleeve is rotated relative to pilot sleeve, drive sleeve
The first bearing pin is driven to be moved along the axial and circumferential of pilot sleeve by driving hypotenuse after idle running certain angle.
Plug valve of the invention, is provided with U-shaped gathering sill on pilot sleeve, is set in drive sleeve
There is the polygonal hole driver slot being engaged with the U-shaped gathering sill, the first bearing pin is arranged on the body of rod, and extremely
Few one end is located in U-shaped gathering sill and polygonal hole driver slot simultaneously.Because pilot sleeve is fixedly installed
On pedestal, therefore when drive sleeve is rotated, pilot sleeve is not rotated, now in the polygon of drive sleeve
Under the driving hypotenuse driving effect of shape hole driver slot, the body of rod rises or falls action with the first bearing pin, and by
In the position-limiting action of the side wall of the U-shaped gathering sill of pilot sleeve, the body of rod cannot rotate, therefore by bar
The parts such as the valve element that body drives are merely able to do and rise or descending motion.Led when the first bearing pin moves to U-shaped
To groove bottom when, valve element has moved enough distances relative to the inwall of pedestal, can be completely de- with pedestal
From contact, now the first bearing pin rotates along the bottom of U-shaped gathering sill, and by body of rod band movable valve plug
Rotate, because valve element is disengaged with pedestal, therefore the abrasion between valve element and pedestal can be avoided, extend
The service life of whole plug valve.
Brief description of the drawings
Fig. 1 diagrammatically illustrates the sectional structure chart of the plug valve of first embodiment of the invention；
Fig. 2 diagrammatically illustrates the amplification assumption diagram of the first embodiment at the Q according to the plug valve of Fig. 1；
Fig. 3 diagrammatically illustrates the amplification assumption diagram of the second embodiment at the Q according to the plug valve of Fig. 1；
Fig. 4 diagrammatically illustrates the amplification assumption diagram of the 3rd embodiment at the Q according to the plug valve of Fig. 1；
Fig. 5 diagrammatically illustrates this structure chart according to the pilot sleeve of the plug valve of Fig. 1；
Fig. 6 diagrammatically illustrates this structure chart according to the drive sleeve of the plug valve of Fig. 1；
Fig. 7 diagrammatically illustrates the process chart of the plug valve of first embodiment of the invention；
Fig. 8 diagrammatically illustrates the sectional structure chart of plug valve according to the second embodiment of the present invention；
Fig. 9 diagrammatically illustrates the process chart of plug valve according to the second embodiment of the present invention.
Reference in figure：10th, pedestal；20th, valve element；30th, the body of rod；40th, pilot sleeve；50th, press
Tight set；60th, motor；70th, motor cover；80th, wear-resistant pad；90th, drive sleeve；11st, cone valve
Chamber；12nd, the first mounting groove；13rd, upper valve base；14th, lower valve base；21st, elastic mechanism；31st, filler；
32nd, o-ring；33rd, the second bearing pin；34th, cover plate；41st, gathering sill；42nd, the first bearing pin；61st, electricity
Power traction line；91st, stop lug；92nd, driver slot；93rd, hypotenuse is driven.
Specific embodiment
Embodiments of the invention are described in detail below, but the present invention can be defined by the claims and
The multitude of different ways of covering is implemented.
The direction of arrow represents the rotation direction of the body of rod in figure.
Fig. 1 to 9, embodiments in accordance with the present invention are refer to, plug valve includes pedestal 10, the body of rod 30, leads
To sleeve 40, drive sleeve 90, the first bearing pin 42 and drive mechanism.
The body of rod 30 is slidably arranged in pedestal 10.Pilot sleeve 40 is fixedly installed on the first end of pedestal 10,
And be set in outside the body of rod 30, gathering sill 41 is provided with pilot sleeve 40, gathering sill 41 is in pilot sleeve
U-shaped or flat U-shaped are projected as on 40 longitudinal midplane.
Drive sleeve 90 is socketed relative to the axial limiting of pilot sleeve 40 with pilot sleeve 40, and relative to
Pilot sleeve 40 is rotatably arranged with being provided with the driver slot being engaged with gathering sill 41 in drive sleeve 90
92, driver slot 92 is projected as polygonal hole, polygonal hole pair on longitudinal midplane of drive sleeve 90
Two trough rims of U-shaped are answered to form two driving hypotenuses 93, two spacing of driving hypotenuse 93 are along away from leading
Successively decrease in direction to the bottom of groove 41.First bearing pin 42 is radially arranged in the body of rod 30 along pilot sleeve 40
Interior, at least one end of the first bearing pin 42 is located in gathering sill 41 and driver slot 92.Preferably, the first pin
The two ends of axle 42 simultaneously be located in gathering sill 41 and driver slot 92, and the center of the first bearing pin 42 with
The center superposition of the body of rod 30.Drive mechanism and the drive connection of drive sleeve 90, drive drive sleeve 90 relative
Rotated in pilot sleeve 40.
Because pilot sleeve 40 is fixedly installed on pedestal, therefore when drive sleeve 90 is rotated, fairlead
Cylinder 40 is not rotated, now under the driving effect of driving hypotenuse 93 of the polygonal hole driver slot of drive sleeve 90,
The body of rod 30 rises or falls action with the first bearing pin 42, and because the U-shaped of pilot sleeve 40 is oriented to
The position-limiting action of the side wall of groove, the body of rod 30 cannot rotate, therefore the valve element 20 driven by the body of rod 30 etc.
Part is merely able to do and rises or descending motion.When the first bearing pin 42 moves to the bottom of U-shaped gathering sill
When, valve element 20 has moved enough distances relative to the inwall of pedestal 10, can be completely interior with pedestal 10
Wall is disengaged, and now the first bearing pin 42 is moved along the bottom of U-shaped gathering sill, and relative to fairlead
Cylinder 40 rotates, and during the first bearing pin 42 is rotated, is rotated with movable valve plug 20 by the body of rod 30,
Because valve element 20 is disengaged with pedestal 10, therefore the abrasion between valve element 20 and pedestal 10 can be avoided,
Extend the service life of whole plug valve.
Drive sleeve 90 and pilot sleeve 40 one of them radially on be provided with position-limitting pin, another
Upper circumferentially arranged limited location groove, position-limitting pin is arranged in stopper slot, and is limited drive sleeve 90 and be oriented to
Sleeve 40 it is moving axially relative, so as to entering relative to the axial movement of pilot sleeve 40 to drive sleeve 90
Row is spacing.In such cases, it is only necessary to be directed to sleeve 40 and be fixedly installed on pedestal 10, then pass through
Be arranged on drive sleeve 90 on pilot sleeve 40 by the cooperation of position-limitting pin and stopper slot, without setting
Limit the cover plate 34 of the axial movement of drive sleeve.
Specifically, in one embodiment, drive sleeve 90 is set in outside pilot sleeve 40, actuating sleeve
Cylinder 90 is disposed radially multiple pin holes for installing position-limitting pin, and the periphery of pilot sleeve 40 is set
Limited location groove, position-limitting pin is fastened in stopper slot.Drive sleeve 90 passes through position-limitting pin and pilot sleeve
It is socketed between 40, is engaged with the stopper slot on pilot sleeve 40 by position-limitting pin so that drive sleeve
90 relative to pilot sleeve 40 while axial limiting is formed, can also be circumferential relative to pilot sleeve 40
Rotate such that it is able to drive the first bearing pin 42 to rotate, and then drive the body of rod 30 to move.Multiple pin hole edges
The circumferential uniform intervals of drive sleeve 90 are set, it is ensured that drive sleeve 90 pass through multiple position-limitting pins with
Counteracting forces are circumferentially formed between pilot sleeve 40, it is ensured that drive sleeve 90 and pilot sleeve 40 work
During structure stability.
In another embodiment, drive sleeve 90 is set in pilot sleeve 40, and pilot sleeve 40 is along footpath
To multiple pin holes for installing position-limitting pin are provided with, the periphery of drive sleeve 90 is provided with stopper slot,
Position-limitting pin is fastened in stopper slot.
Polygonal hole is preferably trapezoidal or triangle, be not only convenient for processing, and can conveniently realize it is right
The driving function of the first bearing pin 42.
Preferably, driver slot 92 is reserved with circumferential sky swing angle degree, in drive sleeve 90 relative to pilot sleeve
During 40 rotation, the edge of the first bearing pin 42 is driven by driving hypotenuse 93 after the idle running certain angle of drive sleeve 90
The axial and circumferential motion of pilot sleeve 40, such that it is able to reduce staring torque.
It is according to drive sleeve of the invention 90 and pilot sleeve 40 with reference to shown in referring to Fig. 1 and Fig. 2
The embodiment of the first fit structure, in the present embodiment, drive sleeve 90 is set in outside pilot sleeve 40,
Stop lug 91 is provided with drive sleeve 90, cover plate 34 is fixedly installed on pedestal 10, cover plate 34 is covered
It is pressed in stop lug 91.There is the first mounting groove 12, the backstop in drive sleeve 90 on pedestal 10
Flange 91 is arranged in first mounting groove 12, and then the lid of cover plate 34 is pressed in stop lug 91, by only
Gear flange 91 is spacing in the first mounting groove 12, so as to be engaged with pilot sleeve 40, to drive sleeve
While 90 formation axial limiting so that drive sleeve 90 can be circumferentially rotated relative to pilot sleeve 40,
The first bearing pin 42 can be driven to rotate, and then drive the body of rod 30 to move.In the present embodiment, stop lug
The 91 first end ends away from drive mechanism for being arranged on drive sleeve 90.Certainly, the position of stop lug 91
Putting can be in other positions.
The outer wall that the inwall of drive sleeve 90 can be close to pilot sleeve 40 is set, so as to reduce drive as far as possible
Radial clearance between sleeve 90 and pilot sleeve 40, realizes the radial positioning of drive sleeve 90.
The week side of boss of the body of rod 30 is provided with filler 31, and plug valve also includes the clamping sleeve 50 being pressed on filler 31.
Filler 31 can be sealed to the link position between the body of rod 30 and pedestal 10, so as to improve plug valve
Overall sealing performance.
In the present embodiment, pilot sleeve 40 and clamping sleeve 50 are formed in one, in the set 50 that is fixed and clamped
It is also possible to fixed guide sleeve 40, simple structure is easy to process, and cost is relatively low.
Because pilot sleeve 40 is fixedly installed relative to pedestal 10, therefore sleeve 40 and seat can also be directed to
The design of body 10 is formed in one, so as to reduce manufacturing procedure, improves processing efficiency.
It is second according to drive sleeve of the invention 90 and pilot sleeve 40 with reference to shown in Figure 3
The embodiment of fit structure, it is essentially identical with the first fit structure, and difference is, in this implementation
In example, the week side of boss of the body of rod 30 is simultaneously not provided with filler, but is sealed by o-ring 32.
With reference to shown in Figure 4, be according to drive sleeve of the invention 90 and pilot sleeve 40 the third
The embodiment of fit structure, in the present embodiment, drive sleeve 90 is set in pilot sleeve 40, is driven
Sleeve 90 is formed with catching step, and the lid of pilot sleeve 40 is located on catching step, and to the shape of drive sleeve 90
Into axial limiting.Because pilot sleeve 40 is set in outside drive sleeve 90, thus pilot sleeve 40 top
The via passed through for drive sleeve 90 is provided with, drive sleeve 90 is driven with drive mechanism by the via and connected
Connect, such that it is able to realize the control to body of rod motion under the driving effect of drive mechanism.
It is the U-shaped or flat U-shaped structure of gathering sill 41, U-shaped with reference to shown in Figure 5
Or the depth of flat U-shaped should meet the first bearing pin 42 and reach the perpendicular of U-shaped or flat U-shaped
During straight section bottom, valve element 20 can depart from the inwall of pedestal 10 completely, U-shaped or flat U-shaped
Width should meet valve element 20 can be with the switching of completion status.
With reference to shown in Figure 6, two angles driven between hypotenuses 93 of polygonal hole driver slot are 110
Spend between 160 degree, it is therefore preferable to 135 degree.Generally, two drivings of polygonal hole driver slot
Angle angle between hypotenuse 93 is bigger, slower, the required power of the axial movement of the first bearing pin 42
It is smaller.But, some workplaces need rapidly to push, and in order to rapidly push, this angle is smaller again
Better.If additionally, using nonmetallic sealing, then in order to reduce the abrasion of seal, it is desirable to rapidly
Push.Therefore, the angle angle between polygonal hole driver slot and horizontal plane can be combined, and just be started
Angle angle is small, rapidly pushes；Angle is larger after to polygonal hole driver slot middle part, can be slow
Push.That is, the hypotenuse of polygonal hole driver slot is not a straight flange, but angle of inclination changes
A plurality of hypotenuse combination, an or arc-shaped side, the arc-shaped side from the top of polygonal hole driver slot to
Angle on the direction of bottom between horizontal plane is gradually reduced so that the body of rod 30 pushes speed gradually by urgency
And tend to slow, so as to meet use requirement.
Pedestal 10 has taper valve pocket 11, and plug valve also includes being rotatably arranged in taper valve pocket 11
Valve element 20, the bottom of valve element 20 is provided with elastic mechanism 21, and the body of rod 30 is arranged on the top of valve element 20,
And with the drive connection of valve element 20, drive valve element 20 moved along the axial and circumferential of pilot sleeve 40.
When plug valve has taper valve pocket 11 and valve element 20, plug valve now is plug valve.In bar
When body 30 is rotated, because pilot sleeve 40 is fixed on pedestal 10, will not rotate, and drive sleeve
90 rotations that circumferential direction only occurs relative to pilot sleeve 40, without the displacement that axial direction occurs.
When needing the working condition for carrying out valve element 20 to switch, drive sleeve 90 occurs to turn relative to pilot sleeve 40
Dynamic, the driver slot 92 in drive sleeve 90 can drive the first bearing pin 42 to be transported about 40 relative to pilot sleeve
Dynamic, the first bearing pin 42 can order about the body of rod 30 and be moved up and down along the axial direction of valve element 20, and then order about valve element
20 move up and down.
Under the driving effect up and down of the driver slot 92 of drive sleeve 90, valve element 20 can be made first along U
The vertical slot of font gathering sill side is slided up and down, now U-shaped gathering sill vertical slot circumferential position-limiting action
Under, valve element 20 will not rotate, and would not also be rubbed between the inwall of pedestal 10, only can be remote
Disseat the inwall of body 10.When the first bearing pin 42 moves to the bottom of U-shaped gathering sill, valve element 20 with
There is enough distances between the inwall of pedestal 10, now under the driving effect of driver slot 92, the first pin
Axle 42 drives the body of rod 30 to be rotated relative to pilot sleeve 40, and then band movable valve plug 20 rotates,
Complete the switching of the working condition of valve element 20.After the switching of working condition of valve element 20 is completed, driving
Under the driving effect of the driving hypotenuse 93 of dynamic groove 92, the first bearing pin 42 drives the body of rod 30 to move, by with
The collective effect of elastic mechanism 21 so that valve element 20 is moved to the direction of the inwall near pedestal 10, finally
Valve element 20 is set to keep state after handover.
Plug valve also includes motor 60 and the motor cover 70 being located at outside motor 60, motor cover 70
With the welded seal of pedestal 10.Due to motor cover 70 and the welded seal of pedestal 10, therefore the body of rod 30 and pedestal
Leakage between 10 does not interfere with the work of plug valve.
Preferably, sealed by o-ring 32 between the body of rod 30 and pedestal 10, the motor of motor 60
Sealant pouring and sealing between lead 61 and motor cover 70, can further improve the integral sealing effect of plug valve.
Pedestal 10 includes the first mounting groove 12, and clamping sleeve 50 is arranged in the first mounting groove 12, fairlead
Cylinder 40 is fixedly installed on the first end end face of pedestal 10, and edge is led between clamping sleeve 50 and pilot sleeve 40
To the axial direction interval setting of sleeve 40.
Due to when pilot sleeve 40 and clamping sleeve 50 are integrally formed, it is possible to which the filling of filler 31 can cause
Clamping sleeve 50 cannot be installed to bottom so that the height dimension of the gathering sill 41 of pilot sleeve 40 does not know, and enters
And cause the lifting size of valve element 20 not know, the control accuracy of plug valve is influenceed, therefore will in the present embodiment
Clamping sleeve 50 and pilot sleeve 40 are provided separately, and clamping sleeve 50 is provided separately within the first mounting groove 12,
The mounting structure of pilot sleeve 40 will not be impacted, it is possible thereby to ensure the gathering sill of pilot sleeve 40
41 height dimension determines, such that it is able to more easily determine the lifting size of valve element 20.
Pilot sleeve 40 can be formed in one with pedestal 10, such that it is able to reduce pilot sleeve 40 and seat
Assembly process between body 10, reduces assembly difficulty, improves efficiency of assembling.
Filler 31 can also be not provided between pedestal 10 and the body of rod 30, but in pedestal 10 and the body of rod 30
Between set o-ring 32 sealed, this kind of structure can be effectively ensured the installation site of clamping sleeve 50,
And ensure the sealing property between pedestal 10 and the body of rod 30 simultaneously.
Wear-resistant pad 80 is additionally provided between the body of rod 30 and valve element 20, the body of rod 30 is driven by wear-resistant pad 80
Valve element 20 is rotated.The wear-resistant pad 80 can avoid the body of rod 30 from directly being contacted with valve element 20 and caused valve
Core 20 weares and teares, it is possible to increase the service life of valve element 20, and the wear-resistant pad 80 also easily facilitate replacing and
Maintenance, can reduce maintenance cost.
It is the structure chart of the plug valve according to the first embodiment of the present invention with reference to shown in Figure 1.At this
In embodiment, taper valve pocket 11 is up-small and down-big back taper valve pocket, and the U-shaped opening of gathering sill 41 deviates from
The place side of valve element 20, where two larger ends of spacing towards valve element 20 of driving hypotenuse 93 of driver slot 92
Side, the body of rod 30 is connected to the top of valve element 20, and circumferentially fixed relative to valve element 20, to drive valve element
20 move along the axial and circumferential of pilot sleeve 40.
Preferably, the limit is moved upward in valve element 20 and the body of rod 30, between the body of rod 30 and valve element 20
Axial direction along pilot sleeve 40 has gap.Plug valve is carried out state switch when, due to the body of rod 30 with
There is gap along the axial direction of pilot sleeve 40 between valve element 20, therefore axially moved to and valve element in the body of rod 30
Before the position of 20 contacts, the body of rod 30 has had certain motional inertia, such that it is able to use the body of rod 30
Motional inertia impact valve element 20, valve element 20 can be reduced and move required startup power, can use compared with
Small motor, so that cost-effective.
In one drawing in unshowned embodiment, pedestal 10 has taper valve pocket 11, and taper valve pocket 11 is
Up-small and down-big back taper valve pocket, the U-shaped opening of gathering sill 41 deviates from the place side of valve element 20, driver slot 92
Two driving hypotenuse 93 the larger ends of spacing towards the place side of valve element 20, plug valve also include rotationally
Be arranged on the valve element 20 in taper valve pocket 11, the body of rod 30 is arranged on the top of valve element 20, and with valve element 20
It is fixedly connected, drives valve element 20 to be moved along the axial and circumferential of pilot sleeve 40.In the present embodiment, by
It is fixedly connected with valve element 20 in the body of rod 30, therefore valve element 20 can be directly driven by the body of rod 30 and is moved,
The switching of plug valve working condition can be more quickly done directly into.
It is the process chart of the plug valve of back taper valve pocket with reference to shown in Figure 7.It can be seen that
During drive sleeve 90 is rotated, the holding position of pilot sleeve 40 is constant, the driving of drive sleeve 90
The side of groove 92 drives 93 pairs of the first bearing pins 42 of hypotenuse to be formed and pushes effect so that the first bearing pin 42 along
The side side of U-shaped gathering sill 41 is descending, because the first bearing pin 42 is fixedly connected with the body of rod 30, the body of rod
30 is descending with the first bearing pin 42, pushes valve element 20, and departs from the contact with the inwall of pedestal 10,
During this, due to the barrier effect of U-shaped gathering sill, the body of rod 30 cannot rotate, therefore valve element
20 also do not rotate.
When the first bearing pin 42 moves to the bottom of U-shaped gathering sill, due to polygonal hole driver slot simultaneously
Give the first bearing pin 42 1 rotary action power, now the first bearing pin 42 can be along the bottom of U-shaped gathering sill
Portion rotates, and drives the body of rod 30 to rotate, and under the drive of the body of rod 30, valve element 20 rotates.Due to
Thoroughly disengaged between valve element 20 and pedestal 10, therefore it is right only to need less active force just to surround
The rotation of valve element 20 is driven, and, in the absence of contacting, valve is also avoided due between valve element 20 and pedestal 10
Attrition in the rotation process of core 20, improves the service life of valve element 20.
When one end that the first bearing pin 42 is oriented to trench bottom from U-shaped turns to the other end, valve element 20 is completed
Switching, now under the barrier effect of another vertical side slot of U-shaped gathering sill, the first bearing pin 42 again without
Method rotates, and can only follow the lifting active force of drive sleeve 90 and ascending motion occurs, when the first pin
When axle 42 moves to the top of another vertical side slot of U-shaped gathering sill, in elastic mechanism 21 and drive sleeve
Under 90 collective effect, valve element 20 is pressed on the inwall of pedestal 10 again, completes the work of valve element 20
The switching of state.
It is the structure chart of the plug valve according to the second embodiment of the present invention with reference to shown in Figure 8.At this
In embodiment, pedestal 10 has taper valve pocket 11, and plug valve also includes being rotatably arranged in taper valve pocket
Valve element 20 in 11, taper valve pocket 11 is up big and down small positive cone valve pocket, and the U-shaped of gathering sill 41 is opened
Mouth deviates from valve element towards the place side of valve element 20, the larger ends of spacing of two driving hypotenuses 93 of driver slot 92
20 places side, the body of rod 30 is arranged on the top of valve element 20, and is fixedly connected with valve element 20, drives valve element
20 move along the axial and circumferential of pilot sleeve 40.
Pedestal 10 includes the upper valve base 13 and lower valve base 14 that are fixedly connected, and upper valve base and lower valve base form taper
Valve pocket 11.This is that, because for positive cone valve pocket, valve pocket is up big and down small, valve element 20 cannot be from pedestal 10
Bottom load, therefore be upper valve base 13 and lower valve base 14 by 10 points of pedestal, be easy to carry out pedestal 10
Processing, also allows for installing valve element 20, can reduce difficulty of processing, improves operating efficiency.For this
Plant for structure, the body of rod 30 is arranged in upper valve base 13.
It is the process chart of the plug valve of positive cone valve pocket with reference to shown in Figure 9.It can be seen that
During drive sleeve 90 is rotated, the holding position of pilot sleeve 40 is constant, the driving of drive sleeve 90
The side of groove 92 drives 93 pairs of the first bearing pins 42 of hypotenuse to form lifting effects so that the first bearing pin 42 along
The side side of U-shaped gathering sill 41 is up, because the first bearing pin 42 is fixedly connected with the body of rod 30, the body of rod
30 is up with the first bearing pin 42, makes to be moved on valve element 20, and departs from the contact with the inwall of pedestal 10,
During this, due to the barrier effect of U-shaped gathering sill, the body of rod 30 cannot rotate, therefore valve element
20 also do not rotate.
When the first bearing pin 42 moves to the bottom of U-shaped gathering sill, because driver slot 92 gives the simultaneously
The one rotary action power of bearing pin 42 1, now the first bearing pin 42 can along U-shaped gathering sill lower rotation,
The body of rod 30 is driven to rotate, under the drive of the body of rod 30, valve element 20 rotates.Due to valve element 20
Thoroughly disengaged between pedestal 10, therefore only need the less active force can just to surround to valve element 20
Rotation drive, in the absence of contacting, also avoid 20 turns of valve element due between valve element 20 and pedestal 10
Attrition during dynamic, improves the service life of valve element 20.
When one end that the first bearing pin 42 is oriented to trench bottom from U-shaped turns to the other end, valve element 20 is completed
Switching, now under the barrier effect of another vertical side slot of U-shaped gathering sill, the first bearing pin 42 again without
Method rotates, and can only follow the pressing force of drive sleeve 90 and move downward, when the first pin
When axle 42 moves to the bottom of another vertical side slot of U-shaped gathering sill, in elastic mechanism 21 and drive sleeve
Under 90 collective effect, valve element 20 is pressed on the inwall of pedestal 10 again, completes the work of valve element 20
The switching of state.
The preferred embodiments of the present invention are these are only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention,
Any modification, equivalent substitution and improvements made etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of plug valve, it is characterised in that including：
Pedestal (10)；
The body of rod (30), is slidably arranged in the pedestal (10)；
Pilot sleeve (40), is fixedly installed on the first end of the pedestal (10), and be set in the bar
Body (30) outward, is provided with gathering sill (41), the gathering sill (41) on the pilot sleeve (40)
U-shaped or flat U-shaped are projected as on longitudinal midplane of the pilot sleeve (40)；
Drive sleeve (90), relative to pilot sleeve (40) axial limiting, with the pilot sleeve (40)
Socket, and relative to the pilot sleeve (40) rotatably arranged with the drive sleeve (90)
The driver slot (92) being engaged with the gathering sill (41) is provided with, the driver slot (92) is in institute
State the polygonal hole that is projected as on longitudinal midplane of drive sleeve (90), the polygonal hole correspondence institute
Two trough rims for stating U-shaped form two and drive hypotenuse (93), and two described to drive hypotenuse (93)
Spacing is successively decreased along the direction of the bottom away from the gathering sill (41)；
First bearing pin (42), along being radially arranged in the body of rod (30) for the pilot sleeve (40),
At least one end of first bearing pin (42) is located in the gathering sill (41) and the driver slot simultaneously
(92) in；
Drive mechanism, with the drive sleeve (90) drive connection, drives the drive sleeve (90)
Rotated relative to the pilot sleeve (40).
2. plug valve according to claim 1, it is characterised in that the drive sleeve (90) is set in institute
State pilot sleeve (40) outward, stop lug (91) is provided with the drive sleeve (90), it is described
Cover plate (34) is fixedly installed on pedestal (10), cover plate (34) lid is pressed in the stop lug
(91) on, coordinate with the pilot sleeve (40) and axial limiting is formed to the drive sleeve (90).
3. plug valve according to claim 2, it is characterised in that the inwall of the drive sleeve (90) is tight
The outer wall for pasting the pilot sleeve (40) is set；
Or
The polygon is trapezoidal or triangle.
4. plug valve according to claim 1, it is characterised in that the drive sleeve (90) is set in institute
State in pilot sleeve (40), the drive sleeve (90) is formed with catching step, the pilot sleeve
(40) lid is located on the catching step, and forms axial limiting to the drive sleeve (90)；
Or
It is disposed radially on one of the drive sleeve (90) and the pilot sleeve (40) limited
Position pin, circumferentially arranged limited location groove on another, the position-limitting pin is arranged on the stopper slot
It is interior, and limit the moving axially relative of the drive sleeve (90) and the pilot sleeve (40).
5. plug valve according to any one of claim 1 to 4, it is characterised in that the pedestal (10)
With taper valve pocket (11), the plug valve also includes being rotatably arranged in the taper valve pocket (11)
Interior valve element (20), the bottom of the valve element (20) is provided with elastic mechanism (21), the cone valve
Chamber (11) is up-small and down-big back taper valve pocket, and the U-shaped opening of the gathering sill (41) is away from described
Side where valve element (20), two of the driver slot (92) drive the larger end of spacing of hypotenuse (93)
Side where towards the valve element (20), the body of rod (30) is connected to the top of the valve element (20),
And it is circumferentially fixed relative to the valve element (20), to drive the valve element (20) along the pilot sleeve
(40) axial and circumferential motion.
6. plug valve according to claim 5, it is characterised in that in the valve element (20) and the body of rod
(30) when moving upward to extreme position, edge between the body of rod (30) and the valve element (20)
The axial direction of the pilot sleeve (40) has gap.
7. plug valve according to any one of claim 1 to 4, it is characterised in that the pedestal (10)
With taper valve pocket (11), the plug valve also includes being rotatably arranged in the taper valve pocket (11)
Interior valve element (20), the taper valve pocket (11) is up-small and down-big back taper valve pocket, the gathering sill
(41) U-shaped opening is away from side where the valve element (20), two of the driver slot (92)
Drive the larger end of spacing of hypotenuse (93) towards side where the valve element (20), the body of rod (30)
The top of the valve element (20) is arranged on, and is fixedly connected with the valve element (20), drive the valve
Core (20) is moved along the axial and circumferential of the pilot sleeve (40).
8. plug valve according to any one of claim 1 to 4, it is characterised in that the pedestal (10)
With taper valve pocket (11), the plug valve also includes being rotatably arranged in the taper valve pocket (11)
Interior valve element (20), the taper valve pocket (11) is up big and down small positive cone valve pocket, the gathering sill
(41) U-shaped opening is towards side where the valve element (20), two of the driver slot (92)
The larger end of spacing of hypotenuse (93) is driven away from side where the valve element (20), the body of rod (30)
The top of the valve element (20) is arranged on, and is fixedly connected with the valve element (20), drive the valve
Core (20) is moved along the axial and circumferential of the pilot sleeve (40).
9. plug valve according to claim 8, it is characterised in that the pedestal (10) is including being fixedly connected
Upper valve base (13) and lower valve base (14), the upper valve base (13) and the lower valve base (14) shape
Into the taper valve pocket (11).
10. plug valve according to claim 1, it is characterised in that the plug valve also includes compressing filler (31)
Clamping sleeve (50), the pilot sleeve (40) and the clamping sleeve (50) are integrally formed；
Or
The driver slot (92) is reserved with circumferential sky swing angle degree, the drive sleeve (90) relative to
When the pilot sleeve (40) rotates, by described after drive sleeve (90) the idle running certain angle
The axial direction and week for driving hypotenuse (93) to drive first bearing pin (42) along the pilot sleeve (40)
To motion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510850403 | 2015-11-27 | ||
| CN201510850403X | 2015-11-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812968A true CN106812968A (en) | 2017-06-09 |
| CN106812968B CN106812968B (en) | 2022-12-06 |
Family
ID=59106267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610065214.6A Active CN106812968B (en) | 2015-11-27 | 2016-01-29 | Plug valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812968B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081196A (en) * | 2019-06-01 | 2019-08-02 | 宁波文泽机电技术开发有限公司 | A kind of plug valve |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2443995A (en) * | 1946-03-19 | 1948-06-22 | Louisiana Savings Bank & Trust | Movement controlling apparatus |
| US2988319A (en) * | 1960-06-15 | 1961-06-13 | Robert L Erwin | Rotary plug valves |
| US4442996A (en) * | 1982-03-08 | 1984-04-17 | Josiephine R. Erwin | Tapered rotary plug valve |
| CN203051833U (en) * | 2013-01-28 | 2013-07-10 | 浙江石化阀门有限公司 | Pipe line plug valve |
-
2016
- 2016-01-29 CN CN201610065214.6A patent/CN106812968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2443995A (en) * | 1946-03-19 | 1948-06-22 | Louisiana Savings Bank & Trust | Movement controlling apparatus |
| US2988319A (en) * | 1960-06-15 | 1961-06-13 | Robert L Erwin | Rotary plug valves |
| US4442996A (en) * | 1982-03-08 | 1984-04-17 | Josiephine R. Erwin | Tapered rotary plug valve |
| CN203051833U (en) * | 2013-01-28 | 2013-07-10 | 浙江石化阀门有限公司 | Pipe line plug valve |
Non-Patent Citations (1)
| Title |
|---|
| 寿震东: "《阀门使用知识》", 31 July 1979 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081196A (en) * | 2019-06-01 | 2019-08-02 | 宁波文泽机电技术开发有限公司 | A kind of plug valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812968B (en) | 2022-12-06 |
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