CN108644415A - A kind of spool and valve - Google Patents
A kind of spool and valve Download PDFInfo
- Publication number
- CN108644415A CN108644415A CN201810613347.1A CN201810613347A CN108644415A CN 108644415 A CN108644415 A CN 108644415A CN 201810613347 A CN201810613347 A CN 201810613347A CN 108644415 A CN108644415 A CN 108644415A
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- China
- Prior art keywords
- valve
- spool
- fluid
- channel
- sealing
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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
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/04—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves
- F16K11/052—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves
- F16K11/0525—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only lift valves with pivoted closure members, e.g. butterfly valves the closure members being pivoted around an essentially central axis
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Multiple-Way Valves (AREA)
Abstract
The present invention discloses a kind of spool and valve.Spool is arranged in valve body, for changing the flow regime of the fluid in valve body, the spool includes sealing, the sealing has first state and the second state, wherein, in first state, the sealing can realize the sealing between spool and the inner wall of valve body, in the second state, the sealing releases the sealing between the spool and the inner wall of valve body.The spool and valve of the present invention, in first state, it is sealed between the spool and the valve body, realize that the flow regime of the cooperation control fluid using the spool and the valve body, the sealing between the second state, the spool and the valve body release, so that when the spool is rotated relative to the valve body, friction between the sealing and the inner wall of the valve body is zero, controls external force required when the spool and reduces, more effortless when commutating or being opened and closed.
Description
Technical field
The present invention relates to valve technology field more particularly to a kind of spools and valve.
Background technology
Currently, in the valve of the prior art, sealing ring is provided on spool, when the spool is assemblied in the valve body
In inner cavity, and when the sealing ring on the spool is compressed between the spool and the valve body, the sealing ring to flow
Body will not be flowed through the fit clearance between the spool and the valve body.
In above-mentioned valve, although the sealing ring can avoid fluid through between the cooperation between the spool and the valve body
Clearance flow is dynamic, and still, the sealing ring is extruded between the spool and the valve body, can lead to the relatively described valve body of the spool
When rotation, i.e. valve commutation or opening and closing, the increased friction between the sealing ring and the valve body, and then cause to control the valve
The external force of core increases, and commutation or opening and closing are laborious difficult.
Invention content
In view of this, the purpose of the present invention is to provide a kind of commutation or being opened and closed convenient and strength-saving spool and valve.
In order to achieve the above objectives, on the one hand, the present invention uses following technical scheme：
A kind of spool is arranged in valve body, and for changing the flow regime of the fluid in valve body, the spool includes sealing
Portion, the sealing have first state and the second state, wherein in first state, the sealing can realize spool and
Sealing between the inner wall of valve body, in the second state, the sealing releases the sealing between the spool and the inner wall of valve body.
Preferably, the sealing includes flexible structure and seal chamber, and the flexible structure constitutes the seal chamber extremely
Small part cavity wall realizes the sealing from second state to first shape by injecting fluid into the seal chamber
The switching of state, by realizing the sealing from the first state to second shape fluid release in the seal chamber
The switching of state.
Preferably, the seal chamber is in a ring or dish type, the spool include flow-guiding structure, the flow-guiding structure and institute
Seal chamber connection is stated, with to injecting fluid in the seal chamber or discharging fluid from the seal chamber.
Preferably, the flexible structure is loop configuration, and the radial section of the loop configuration is U-shaped, and the U-shaped is opened
Mouth is provided with ring baffle towards radially inner side in the opening of the U-shaped, what the ring baffle and flexible structure enclosed
Inner cavity constitutes the seal chamber.
Preferably, the through-hole radially extended is provided on the ring baffle, the through-hole constitutes the water conservancy diversion knot
A part for structure.
Preferably, the flow-guiding structure further includes that the fluid introduction passage being connected to the seal chamber and fluid are drawn and led to
Road, wherein
One end of the fluid introduction passage is connected to the through-hole, and the other end extends at the fluid inlet of the valve body
Or it extends near the fluid inlet of the valve body；
One end of the fluid extraction channel is connected to the through-hole, and the other end is connected to the low pressure chamber in the valve body.
Preferably, the other end of the fluid introduction passage extends to the geometric center position at the fluid inlet of the valve body
It sets.
Preferably, the fluid introduction passage includes the first passage portion being connected with each other and second channel portion, wherein second
One end of channel part is connected to the through-hole；
The fluid extraction channel includes the third channel portion being connected with each other and fourth lane portion, wherein fourth lane portion
One end is connected to the through-hole；
The second channel portion and fourth lane portion are common-use tunnel；
Reversing valve core, the reversing valve core are provided between the first passage portion, third channel portion and common-use tunnel
There are two states for tool, and in first state, the first passage portion is connected to common-use tunnel, and third channel portion and common-use tunnel are cut
It is disconnected；In the second state, the third channel portion is connected to common-use tunnel, and first passage portion and common-use tunnel block.
Preferably, the spool includes valve plate and the valve rod that is connect with the valve plate, and the valve plate includes the first valve plate, the
Two valve plates, the sealing are arranged between first valve plate and the second valve plate, first valve plate, second valve plate and
The sealing is enclosed cavity structure, and the through-hole is located at the opening of valve plate radially inner side towards the sky of the cavity structure
Chamber.
Preferably, first valve plate is fixedly connected or is structure as a whole with the valve rod, second valve plate and institute
It states the first valve plate to be set in parallel in the side far from the valve rod of first valve plate, the first passage portion is at least partly
It is arranged on second valve plate.
Preferably, the first passage portion includes the axially extending first passage section along the valve rod, is arranged described
Second channel section in cavity and with the vertically extending third channel section in face where the valve plate, wherein third channel section can
It is inserted into first valve plate and valve rod.
Preferably, the common-use tunnel is configured to form the axially extending hole section on the valve rod and along valve rod, institute
The one end for stating hole section is connected to the cavity, and the reversing valve core is arranged at the other end of the hole section.
Preferably, mounting hole is provided on valve rod, the reversing valve core can be installed to the hole through the mounting hole
At the other end of section, be provided with pipe fitting in the mounting hole, one end of the pipe fitting can in the reversing valve core
Channel is connected to, and other end is connected to the low pressure chamber of valve body.
Preferably, the spool includes the first driving structure being connected with the reversing valve core, first driving structure
The reversing valve core can be driven to rotate, to realize that reversing valve core is converted between the first state and a second state；
The spool includes the second driving structure being connected with the valve plate, and second driving structure can drive described
Valve plate rotates.
Preferably, the spool further includes being arranged on the valve rod and along the axially extending accommodating hole of the valve rod,
The accommodating hole is connected to the common-use tunnel, first driving structure be arranged in the accommodating hole and with the reversal valve
Core connects；Second driving structure includes valve rod.
Preferably, first driving structure and second driving structure are arranged to：It is described within the scope of first angle
First driving structure drives the reversing valve core individually to rotate, and the valve plate does not rotate；Within the scope of second angle, described first
Driving structure drives second driving structure to rotate simultaneously.
In order to achieve the above objectives, on the other hand, the present invention also uses following technical scheme：
A kind of valve, including valve body and spool described above, are provided with first fluid channel and second in the valve body
Fluid channel, the spool can open first fluid channel, close second fluid channel and close first fluid channel,
Opening second fluid switches between channel, and the spool is when closing first fluid channel or closing second fluid channel, institute
It states sealing and is in first state, when switching fluid channel, the sealing is in the second state.
The spool and valve of the present invention, seals between first state, the spool and the valve body, realizes and utilizes the valve
The flow regime of the cooperation control fluid of core and the valve body, the sealing between the second state, the spool and the valve body
It releases, so that when the spool is rotated relative to the valve body, the friction between the sealing and the inner wall of the valve body
It is zero, controls external force required when the spool and reduce, it is more effortless when commutating or being opened and closed.
Description of the drawings
By referring to the drawings to the description of the embodiment of the present invention, the above and other purposes of the present invention, feature and
Advantage will be apparent from.
Fig. 1 is the sectional view of valve in the specific embodiment of the invention；
Fig. 2 is the sectional view of valve body in the specific embodiment of the invention；
Fig. 3 is the sectional view of spool in the specific embodiment of the invention；
Fig. 4 is the sectional view of the first valve plate and valve rod in the specific embodiment of the invention；
Fig. 5 is the A direction views of Fig. 4；
Fig. 6 is the sectional view of the second valve plate in the specific embodiment of the invention；
Fig. 7 is the B direction views of Fig. 6；
Fig. 8 is the structural schematic diagram of flexible structure in the specific embodiment of the invention；
Fig. 9 is the sectional view of ring baffle in the specific embodiment of the invention；
Figure 10 is the C direction views of Fig. 9；
Figure 11 is the sectional view of reversing valve core in the specific embodiment of the invention；
Figure 12 is the structural schematic diagram of reversing valve core in the specific embodiment of the invention；
Figure 13 is the sectional view of pipe fitting in the specific embodiment of the invention；
Figure 14 is the structural schematic diagram of the first driving structure in the specific embodiment of the invention.
In figure：
1, valve body；11, water inlet；12, water outlet；13, valve chamber；14, valve rod is open；
2, spool；21, sealing；211, flexible structure；212, seal chamber；213, ring baffle；2131, through-hole；22, it leads
Flow structure；221, fluid introduction passage；2211, first passage portion；2212, first passage section；2213, second channel section；2214、
Third channel section；2215, second channel portion；222, fluid extraction channel；2221, third channel portion；2222, fourth lane portion；
2223, common-use tunnel；223, cavity structure；23, reversing valve core；231, groove；24, valve plate；241, the first valve plate；2411, even
Connect hole；242, the second valve plate；25, valve rod；251, mounting hole；252, pipe fitting；253, accommodating hole；26, the first driving structure；261、
Rod piece；2611, mounting portion；2612, raised；27, the second driving structure.
Specific implementation mode
Below based on embodiment, present invention is described, it should be understood by one skilled in the art that provided herein
Attached drawing is provided to the purpose of explanation, and attached drawing is not necessarily drawn to scale.
Unless the context clearly requires otherwise, "include", "comprise" otherwise throughout the specification and claims etc. are similar
Word should be construed as the meaning for including rather than exclusive or exhaustive meaning；That is, being containing for " including but not limited to "
Justice.
Referring to Fig.1 shown in-Figure 14, the present invention provides a kind of spool, is arranged in valve body 1, for changing the stream in valve body 1
The flow regime of body, the flow regime for changing fluid refer to the flow direction for changing fluid, or cut-out or the flowing for getting through fluid
State.In order to facilitate introduction, the various embodiments of the spool of the present invention, i.e. valve of the invention are introduced by taking triple valve as an example below
The setting of core 2 forms a triple valve in the valve body 1, and as depicted in figs. 1 and 2, there are one water inlets for setting on the valve body 1
11 and two water outlets 12, the water inlet 11 and the water outlet 12 are preferably tubular structure, and two water outlets 12 are same
Axis is arranged, and the valve chamber 13 of the valve body 1 is preferably provided to cylinder, the axis and the water inlet 11 of the cylinder valve chamber 13
Axis coaxle, and the axis of the water inlet 11 and the axis of the water outlet 12 are perpendicular in the same plane, in this way, institute
It states spool 2 and rotates the resultant moment minimum for the water being subject to, and be more convenient for repairing.
As shown in figures 1 and 3, the spool 2 includes sealing 21, and the sealing 21 has first state and the second shape
State, wherein in first state, the sealing 21 can realize the sealing between spool 2 and the inner wall of valve body 1, realize and utilize
The flow regime of the cooperation control fluid of the spool 2 and the valve body 1, in the second state, the sealing 21 releases described
Sealing between spool 2 and the inner wall of valve body 1, so that when the spool 2 is rotated relative to the valve body 1, the sealing
Friction between 21 and the inner wall of the valve body 1 is zero, controls external force required when the spool 2 and reduces, when commutating or being opened and closed
It is more effortless.
In a preferred embodiment, as shown in figures 1 and 3, the sealing 21 includes flexible structure 211 and sealing
Chamber 212, the flexible structure 211 for example can be waterproof clothes, and the flexible structure 211 constitutes the seal chamber 212 at least
At least partly cavity wall of part cavity wall, the seal chamber 212 that the flexible structure 211 is constituted is the spool 2 and the valve
The part for sealing between body 1 realizes the sealing 21 from described the by injecting fluid into the seal chamber 212
Switching of the two-state to the first state, that is, when injecting fluid into the seal chamber 212, flexible structure 211 is formed close
Chamber 212 is sealed when injecting fluid, seal chamber 212 expands under action of a fluid, realizes and utilizes the swollen of injection fluid
Swollen seal chamber 212 fills up surplus between spool 2 and the valve body 1, so realize spool 2 and valve body 1 sealing, pass through by
Switching of the sealing 21 from the first state to second state is realized in fluid release in the seal chamber 212,
I.e. after discharging the fluid in the seal chamber 212, the seal chamber 212 is due to 212 internal fluid pressure of the seal chamber
Reduce, the seal chamber 212 is converted into contraction state from swelling state, and gap occur between the spool 2 and the valve body 1 makes
The spool 2 when being rotated relative to the valve body 1, zerofriction force between the spool 2 and the valve body 1 controls the spool 2
Required external force reduces, laborsaving convenience.
The seal chamber 212 is arranged in a ring, and the seal chamber 212 of annular setting can be with the cylinder of the valve body 1
It is formed and is fitted close between valve chamber 13, the seal chamber 212 is preferably oval ring, wherein the flexible structure 211 is annular
The radial section of structure, the loop configuration is U-shaped, and the shape of the flexible structure 211 is similar to the shape of cover, the U
Towards radially inner side, the opening of the U-shaped refers to elliptical towards where loop configuration itself opening of shape towards radially inner side
It is radial, as shown in Figure 3 and Figure 9, the opening of the U-shaped is provided with ring baffle 213, the ring baffle 213 and flexibility
The inner cavity that structure 211 encloses constitutes the seal chamber 212, and the ring baffle 213 is sleeved on the flexible structure of U-shaped
211 opening, and U-shaped bottom of the external cylindrical surface of the ring baffle 213 apart from the flexible structure 211 exists centainly
Distance is to ensure a constant volume of seal chamber 212, it will be understood that the ring baffle 213 and the sealing of the flexible structure 211 connect
It connects.
As shown in figures 1 and 3, the spool 2 includes flow-guiding structure 22, the flow-guiding structure 22 and the seal chamber 212
Connection, to discharge fluid to injection fluid in the seal chamber 212 or from the seal chamber 212.Preferably, the water conservancy diversion knot
Structure 22 includes the through-hole 2131 radially extended being arranged on the ring baffle 213, and the through-hole 2131 is distributed on described
Between the inner cylinder face of ring baffle 213 and the external cylindrical surface of the ring baffle 213.
As shown in figure 3, the flow-guiding structure 22 further include the fluid introduction passage 221 being connected to the seal chamber 212 and
Fluid extraction channel 222.Wherein, one end of the fluid introduction passage 221 is connected to the through-hole 2131, and the other end extends to
It at the fluid inlet of the valve body 1 or extends near the fluid inlet of the valve body 1, it is preferable that the fluid introduction passage
221 other end extends to the geometric center position at the fluid inlet of the valve body 1 so that the fluid introduction passage
221 pressure for leading to the fluid of the seal chamber 212 are the valve when the spool 2 and the valve body 1 are in sealing state
Stagnation pressure at the fluid inlet of body 1, so that the Fluid pressure for introducing the seal chamber 212 is greater than or equal to the valve
Necessary pressure needed for being sealed between core 2 and the valve body 1, to realize that it is described that the Fluid pressure in the seal chamber 212 overcomes
Fluid pressure of the valve body 1 at the seal chamber 212, so that the seal chamber 212 expands under the action of fluid inside it,
Clever structure, expansion effect are more preferable.Wherein, one end of the fluid extraction channel 222 is connected to the through-hole 2131, the other end
It is connected to the low pressure chamber in the valve body 1, the low pressure chamber connection in the valve body 1 refers to and two water outlets 12 in the present embodiment
One water outlet 12 of middle no draining is connected to, i.e. the backwater side of the valve body 1.
As shown in Fig. 3-Fig. 7, the fluid introduction passage 221 includes that the first passage portion 2211 and second being connected with each other leads to
Road portion 2215, the wherein one end in second channel portion 2215 are connected to the through-hole 2131, and the fluid extraction channel 222 includes phase
The third channel portion 2221 and fourth lane portion 2222 to connect, the wherein one end in fourth lane portion 2222 and the through-hole 2131
Connection, the second channel portion 2215 and fourth lane portion 2222 are common-use tunnel 2223.In the first passage portion 2211,
Reversing valve core 23 is provided between triple channel portion 2221 and common-use tunnel 2223, the spool 2 constitutes the reversing valve core 23
Commutate valve body, and the position that crosses of 2223 three of the first passage portion 2211, third channel portion 2221 and common-use tunnel constitutes institute
State the commutation valve chamber that the reversing valve core 23 is arranged in commutation valve body.The tool of the reversing valve core 23 is there are two state, in first state,
The first passage portion 2211 is connected to common-use tunnel 2223, and third channel portion 2221 and common-use tunnel 2223 block, at this point, institute
Fluid introduction passage 221 to be stated to be got through, the fluid extraction channel 222 is truncated, and fluid is introduced into the seal chamber 212, and
Fluid in seal chamber 212 will not be flowed out through fluid extraction channel 222, and seal chamber 212 expands, and the correspondence of the sealing 21 is in
First state, the sealing between the spool 2 and the inner wall of valve body 1 are established；In the second state, the third channel portion 2221 with
Common-use tunnel 2223 is connected to, and first passage portion 2211 and common-use tunnel 2223 block, at this point, 221 quilt of fluid introduction passage
It blocks, the fluid extraction channel 222 is connected to, and the fluid in the seal chamber 212 is through 222 row of fluid extraction channel
Go out, and do not have new fluid and be introduced into the seal chamber 212, seal chamber 212 is shunk, and the sealing 21 is corresponded in the
Two-state, the sealing between the spool 2 and the inner wall of the valve body 1 release.
It may be implemented to inject seal chamber 212 using the fluid introduction passage 221 or the fluid extraction channel 222 and flow
Body or discharge fluid, the fluid introduction passage 221 and the fluid extraction channel 222 are controlled using the reversing valve core 23
It is connected to and blocks, and then control the sealing 21 and switch between first state and second state, can realize to institute
State the lithe control of fluid introduction passage 221 or fluid extraction channel 222.
In the further preferred embodiment of above-mentioned preferred embodiment, as shown in Fig. 3-Fig. 7, the spool 2 includes
Valve plate 24 and the valve rod 25 being connect with the valve plate 24, it is preferable that the valve plate 24 is ellipse, so that the valve plate 24 is arranged
In cylindrical valve chamber 13, valve plate 24 can coordinate with the cavity wall of the valve chamber 13.The valve plate 24 includes the first valve plate
241, the second valve plate 242, the curved surface where the side wall of first valve plate 241 are a cylindrical surface, second valve plate
Curved surface where 242 side wall is a cylindrical surface, so that the valve plate 24 and cylindrical valve chamber 13 coordinate, described first
Valve plate 241 is structure as a whole with the valve rod 25, and second valve plate 242 is set in parallel with first valve plate 241 in institute
The side far from the valve rod 25 for stating the first valve plate 241, has certain angle between the valve plate 24 and the valve rod 25,
When so that the valve rod 25 rotating, the valve plate 24 coordinates around the rotation of 11 axis of water inlet and with cylindrical valve chamber 13, commutation resistance
Power reduces.The sealing 21 is arranged between first valve plate, 241 and second valve plate 242, specifically, the ring baffle
213 are arranged the opening in the flexible structure 211 of U-shaped, what the ring baffle 213 and the flexible structure 211 were formed
Sealing 21 is arranged between first valve plate, 241 and second valve plate 242, and in the flexible structure 211 and described first
Between valve plate 241, sealing ring, first valve plate 241, are set between the flexible structure 211 and second valve plate 242
Two sealing rings of valve plate 242, two and sealing 21 threadedly tighten together, it is of course possible to understand, screw thread is set
Seated position should be staggered the through-hole 2131, it is preferable that in the assembled condition, where the excircle side wall of the ring baffle 213
The diameter on cylindrical surface is less than the diameter on the cylindrical surface where the side wall of first valve plate, 241 and second valve plate 242, to avoid institute
Seal chamber 212 is stated in contraction state, flexible structure 211 blocks the through-hole 2131 on the ring baffle 213.
In addition, on the triple valve that the valve body 1 and the spool 2 are assembled to form, in addition to be arranged on the valve body 1 into
Further include that the confession that is arranged on the valve body 1 valve rod 25 is worn as depicted in figs. 1 and 2 outside the mouth of a river 11 and two water outlets 12
The valve rod opening 14 gone out so that controlling valve plate 24 by controlling the valve rod 25, and then is realized to the flow regime of fluid
Changing, bearing is provided at the valve rod opening 14, the valve rod 25 is arranged by the bearing at valve rod opening 14,
Obviously, sealing ring should be set between the valve rod 25 and valve rod opening 14, to ensure in the spool 2 and the valve body 1
Between sealing release and control valve rod 25 rotate when, fluid will not from the valve rod 25 and the valve rod opening 14 between
The overflow of installation gap.
First valve plate 241, second valve plate 242 and the sealing 21 are enclosed cavity structure 223, such as scheme
Shown in 3, the through-hole 2131 is located at the opening of valve plate radially inner side towards the cavity of the cavity structure 223, through the fluid
The fluid that introduction passage 221 introduces is introduced into the cavity structure 223, then flows into the seal chamber 212 through the through-hole 2131
In, similarly, the fluid in the seal chamber 212, into the cavity structure 223, most passes through afterwards after the outflow of the through-hole 2131
The fluid extraction channel 222 is discharged, and the cavity structure 223 constitutes a part for the flow-guiding structure 22.
As shown in Fig. 3, Fig. 4, Fig. 6 and Fig. 7, the first passage portion 2211 is at least partially disposed in second valve plate
On 242, it is preferable that the first passage portion 2211 includes the axially extending first passage section 2212 along the valve rod 25, if
Set second channel section 2213 in the cavity of the cavity structure 223 and with the 24 vertically extending third in place face of the valve plate
The side for deviating from first valve plate 241 in second valve plate 242 is arranged in channel section 2214, the first passage section 2212,
The extending direction of the first passage section 2212 is consistent with the axis of the valve rod 25, and in the assembled condition, described second is logical
Road section 2213 and the third channel section 2214 are arranged in the cavity structure 223, it is worth noting that, the second channel
Section 2213 and the third channel section 2214 are located in the cavity structure 223, but not straight with the cavity structure 223
To lead in succession, the second channel section 2213 and the third channel section 2214 are preferably provided on second valve plate 242,
In, third channel section 2214 is inserted into first valve plate 241 and valve rod 25, it is clear that first valve plate 241 and described
The connecting hole 2411 coordinated for the third channel section 2214, one end of the connecting hole 2411 and institute are provided on valve plate 25
The connection of third channel section 2214 is stated, the end of the other end and the common-use tunnel 2223 setting reversing valve core 23 is connected to, and described the
The cooperation of triple channel section 2214 and the connecting hole 2411 not only makes the second channel section 2213 and the common-use tunnel
2223 connections, and the installation site of second valve plate 242 can be positioned.
As shown in figure 3, the common-use tunnel 2223 is configured to form on the valve rod 25 and prolongs along the axial direction of valve rod 25
The hole section stretched, one end of the hole section are connected to the cavity of the cavity structure 223, and the reversing valve core 23 is arranged in the hole
At the other end of section.
As shown in fig. 4 and 13, mounting hole 251 is provided on valve rod 25, the mounting hole 251 is along the valve rod 25
Setting is radially extended, the reversing valve core 23 can be installed at the other end of the hole section through the mounting hole 251, described
Pipe fitting 252 is provided in mounting hole 251, one end of the pipe fitting 252 can be connected to the channel in the reversing valve core 23, separately
Outer one end is connected to the low pressure chamber of valve body 1, and the channel in the reversing valve core is preferably L-shaped channel, the endoporus of the pipe fitting 252
It forms the third channel portion 2221, when installation, first puts the reversing valve core 23 along the axis of the mounting hole 251 into described
At the other end of hole section, then by the pipe fitting 252 in the mounting hole 251, finally utilize nut by the pipe fitting 252
It is fastened on the valve rod 25, it is clear that sealing ring should be set between the pipe fitting 252 and the mounting hole 251, to ensure to flow
Body will not be between the pipe fitting 252 and the mounting hole 251 clipping room clearance flow go out, realize using reversing valve core 23 control institute
State getting through or blocking for third channel portion 2221 and the common-use tunnel 2223.
As shown in Fig. 3, Figure 11, Figure 12 and Figure 14, the spool 2 includes the first driving being connected with the reversing valve core 23
Structure 26, first driving structure 26 can drive the reversing valve core 23 to rotate, to realize reversing valve core 23 first
It is converted between state and the second state, first driving structure 26 includes elongated shape rod piece 261, one end of the rod piece 261
It is provided with the mounting portion 2611 assembled with the reversing valve core 23, such as one end of the rod piece 261 is provided with protrusion 2612, institute
Setting groove 231 on reversing valve core 23 is stated, by the way that raised 2612 assembly is realized that described first drives in the groove 231
Dynamic structure 26 controls the reversing valve core 23, and the spool 2 includes the second driving structure 27 being connected with the valve plate 24, described
Second driving structure 27 can drive the valve plate 24 to rotate, it is clear that second driving structure 27 includes valve rod 25, described
The axially extending accommodating hole 253 along the valve rod 25, the accommodating hole 253 and the common-use tunnel are provided on valve rod 25
2223 connections, the axis of the accommodating hole 253 is consistent with the axis of the common-use tunnel 2223, and first driving structure 26 is set
It sets in the accommodating hole 253 and is connect with the reversing valve core 23, pass through the first driving structure 26 and the second driving structure 27
The control reversing valve core 23 and valve plate 24 can be facilitated.
As shown in Figure 1, specifically, 12 He of water outlet of the triple valve that the spool 2 and the valve body 1 are assembled to form
Water inlet 11 is connected to, another water outlet 12 is not connected to water inlet 11, and between the spool 23 and the inner wall of the valve body 1
Sealing when establishing, the first passage portion 2211 of the fluid introduction passage 221 and the common-use tunnel 2223 are changed by described
Channel connection into spool 23, one end of the fluid introduction passage 221 extend at the fluid inlet of the valve body 1, flow
Body is introduced into the seal chamber 212, the third channel portion 2221 of the fluid extraction channel 222 and the common-use tunnel 2223 it
Between cut off by the reversing valve core 23, the fluid in the seal chamber 212 will not flow out, and realize the spool 2 and the valve body 1
The reliable use for the triple valve being assembled to form, when needing to commutate to the triple valve, the first step is tied by first driving
Structure 26 controls the reversing valve core 23 and rotates forward or backwards, at this point, reversing valve core 23 is rotated relative to the valve plate 24, the valve
It is not relatively rotated between plate 24 and the valve body 1, so that the common-use tunnel 2223 is cut with the first passage portion 2211
It is disconnected, and be connected to the third channel portion 2221, the fluid introduction passage 221 is cut off, and fluid can not be introduced into described close
Chamber 212 is sealed, the fluid extraction channel 222 is connected to, the fluid that the fluid in the seal chamber 212 is flowed into water inlet 11
It is discharged from the seal chamber 212 under pressure, the sealing between the spool 2 and the valve body 1 releases；Second step passes through institute
It states the second driving structure 27 and controls the valve plate 24 by the rotation direction phase with the first driving structure 26 described in the first step
Same direction individually rotates, at this point, the valve plate 24 is rotated relative to the reversing valve core 23, the relatively described valve body of the valve plate 24
1 rotation, the reversing valve core 23 do not rotate relative to the valve body 1, so so that the first passage portion 2211 and described shares
Channel 2223 is connected to, and the fluid is introduced into 212 chambers of the sealing, the third channel 2221 and the common-use tunnel 2223 it
Between cut off, the fluid of the seal chamber 212 will not flow out, and sealing between the spool 2 and the valve body 1 is established, and terminate one
Secondary commutation.When needing to continue commutation, the first step and second step are repeated.
Preferably, first driving structure 26 and second driving structure 27 are arranged to：Within the scope of first angle,
First driving structure 26 drives the reversing valve core 23 individually to rotate, and the valve plate 24 does not rotate；In second angle range
Interior, first driving structure 26 drives second driving structure 27 while rotating.In this way, when needing to change the triple valve
Xiang Shi, the first step control the reversing valve core 23 by first driving structure 26 and rotate in a first direction, at this point, commutation
Spool 23 is rotated relative to the valve plate 24, is not relatively rotated between the valve plate 24 and the valve body 1, so that described share
Channel 2223 is cut off with the first passage portion 2211, and is connected to the third channel portion 2221, the fluid introduction passage
221 are cut off, and fluid can not be introduced into the seal chamber 212, and the fluid extraction channel 222 is connected to, the seal chamber 212
In fluid discharged from the seal chamber 212 under the pressure for the fluid that water inlet 11 flows into, the spool 2 and the valve body
Sealing between 1 releases；Second step controls the reversing valve core 23 by first driving structure 26 and continues in a first direction
Rotation, controls the valve plate 24 by second driving structure 27 and rotates in a first direction, at this point, 23 He of the reversing valve core
It does not relatively rotate between the valve plate 24, is relatively rotated between the valve plate 24 and the valve body 1；Third walks, and passes through described the
One driving structure 26 controls the reversing valve core 23 and is rotated in second direction opposite to the first direction, at this point, described change
It relatively rotates between spool 23 and the valve plate 24, is not relatively rotated between the valve plate 24 and the valve body 1, it is same in this
When, the first passage portion 2211 is connected to the common-use tunnel 2223, and the fluid is introduced into the seal chamber 212, described
It is cut off between third channel 2221 and the common-use tunnel 2223, the fluid of the seal chamber 212 will not flow out, the spool 2
Sealing between the valve body 1 is established, and primary commutation is terminated.When needing to continue commutation, the first step, second step and the are repeated
Three steps.
The present invention also provides a kind of valves, as shown in Figure 1, including valve body 1 and spool 2 described above, in the valve body 1
It is provided with first fluid channel and second fluid channel, the first fluid channel refers to a water outlet 12 and is connected to water inlet 11
When the fluid channel that is formed, it is logical that the second fluid channel refers to the fluid formed when another water outlet 12 is connected to water inlet 11
Road, the spool 2 can open first fluid channel, close second fluid channel and close first fluid channel, open
Second fluid switches between channel, and the spool 2 is described close when closing first fluid channel or closing second fluid channel
Envelope portion 21 is in first state, and when switching fluid channel, the sealing 21 is in the second state.
As shown in figures 1 and 3, when installation, pipe fitting 252 is mounted in the mounting hole 251 of the valve rod 25 first,
It is secondary, between the sealing 21 is installed in first valve plate, 241 and second valve plate 242, then by the spool 2 from described
11 side of water inlet of valve body is packed into, and the valve rod 25 is mounted in valve rod opening 14, realizes the spool 2 and institute
State the installation of valve body 1.
Those skilled in the art will readily recognize that under the premise of not conflicting, above-mentioned each preferred embodiment can be free
Ground combination, superposition.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for those skilled in the art
For, the present invention can have various modifications and changes.It is all within spirit and principles of the present invention made by any modification, equivalent
Replace, improve etc., it should all be included in the protection scope of the present invention.
Claims (17)
1. a kind of spool is arranged in valve body, for changing the flow regime of the fluid in valve body, which is characterized in that the valve
Core includes sealing, and the sealing has first state and the second state, wherein in first state, the sealing can
Realize the sealing between spool and the inner wall of valve body, in the second state, the sealing releases the inner wall of the spool and valve body
Between sealing.
2. spool according to claim 1, which is characterized in that the sealing includes flexible structure and seal chamber, described
Flexible structure constitutes at least partly cavity wall of the seal chamber, and the sealing is realized by injecting fluid into the seal chamber
Switching from from second state to the first state, by the way that the sealing is realized in the fluid release in the seal chamber
Switching from from the first state to second state.
3. spool according to claim 2, which is characterized in that the seal chamber in a ring or dish type, the spool packet
Flow-guiding structure is included, the flow-guiding structure is connected to the seal chamber, with to injecting fluid in the seal chamber or from described close
It seals chamber and discharges fluid.
4. spool according to claim 3, which is characterized in that the flexible structure is loop configuration, the loop configuration
Radial section be U-shaped, the opening of the U-shaped is provided with ring baffle, institute towards radially inner side in the opening of the U-shaped
It states ring baffle and inner cavity that flexible structure encloses constitutes the seal chamber.
5. spool according to claim 4, which is characterized in that be provided on the ring baffle radially extend it is logical
Hole, the through-hole constitute a part for the flow-guiding structure.
6. spool according to claim 5, which is characterized in that the flow-guiding structure further includes being connected to the seal chamber
Fluid introduction passage and fluid extraction channel, wherein
One end of the fluid introduction passage is connected to the through-hole, and the other end extends at the fluid inlet of the valve body or prolongs
Near the fluid inlet for extending to the valve body；
One end of the fluid extraction channel is connected to the through-hole, and the other end is connected to the low pressure chamber in the valve body.
7. spool according to claim 6, which is characterized in that the other end of the fluid introduction passage extends to the valve
Geometric center position at the fluid inlet of body.
8. spool according to claim 6, which is characterized in that the fluid introduction passage includes that first be connected with each other is led to
Road portion and second channel portion, the wherein one end in second channel portion are connected to the through-hole；
The fluid extraction channel includes the third channel portion being connected with each other and fourth lane portion, the wherein one end in fourth lane portion
It is connected to the through-hole；
The second channel portion and fourth lane portion are common-use tunnel；
Reversing valve core is provided between the first passage portion, third channel portion and common-use tunnel, the reversing valve core has
Two states, in first state, the first passage portion is connected to common-use tunnel, and third channel portion and common-use tunnel block；
Second state, the third channel portion are connected to common-use tunnel, and first passage portion and common-use tunnel block.
9. spool according to claim 8, which is characterized in that the spool includes valve plate and the valve that is connect with the valve plate
Bar, the valve plate include the first valve plate, the second valve plate, and the sealing is arranged between first valve plate and the second valve plate,
First valve plate, second valve plate and the sealing are enclosed cavity structure, and it is inside that the through-hole is located at valve plate diameter
Cavity of the opening of side towards the cavity structure.
10. spool according to claim 9, which is characterized in that first valve plate be fixedly connected with the valve rod or
It is structure as a whole, what second valve plate and first valve plate were set in parallel in first valve plate far from the valve rod
Side, the first passage portion are at least partially disposed on second valve plate.
11. spool according to claim 10, which is characterized in that the first passage portion includes the axial direction along the valve rod
The first passage section of extension, the second channel section being arranged in the cavity and with the vertically extending third in face where the valve plate
Channel section, wherein third channel section is inserted into first valve plate and valve rod.
12. spool according to claim 11, which is characterized in that the common-use tunnel is configured to form on the valve rod
And along the axially extending hole section of valve rod, one end of the hole section is connected to the cavity, and the reversing valve core is arranged described
At the other end of hole section.
13. spool according to claim 12, which is characterized in that be provided with mounting hole, the reversing valve core on valve rod
It can be installed to through the mounting hole at the other end of the hole section, pipe fitting, the pipe fitting are provided in the mounting hole
One end can be connected to the channel in the reversing valve core, other end is connected to the low pressure chamber of valve body.
14. spool according to claim 9, which is characterized in that the spool includes to be connected with the reversing valve core
One driving structure, first driving structure can drive the reversing valve core to rotate, to realize reversing valve core in the first shape
It is converted between state and the second state；
The spool includes the second driving structure being connected with the valve plate, and second driving structure can drive the valve plate
Rotation.
15. spool according to claim 14, which is characterized in that the spool further includes being arranged on the valve rod and edge
The axially extending accommodating hole of the valve rod, the accommodating hole are connected to the common-use tunnel, the first driving structure setting
It is connect in the accommodating hole and with the reversing valve core；Second driving structure includes valve rod.
16. spool according to claim 14, which is characterized in that first driving structure and second driving structure
It is arranged to：Within the scope of first angle, first driving structure drives the reversing valve core individually to rotate, and the valve plate does not turn
It is dynamic；Within the scope of second angle, first driving structure drives second driving structure to rotate simultaneously.
17. a kind of valve, which is characterized in that the spool including valve body and as described in one of claim 1-16, in the valve body
It is provided with first fluid channel and second fluid channel, the spool can open first fluid channel, close second fluid
Channel and closing first fluid channel, opening second fluid switch between channel, and the spool is closing first fluid channel
Or when closing second fluid channel, the sealing is in first state, and when switching fluid channel, the sealing is in
Second state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613347.1A CN108644415B (en) | 2018-06-14 | 2018-06-14 | Valve core and valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810613347.1A CN108644415B (en) | 2018-06-14 | 2018-06-14 | Valve core and valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644415A true CN108644415A (en) | 2018-10-12 |
| CN108644415B CN108644415B (en) | 2023-10-13 |
Family
ID=63752542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810613347.1A Active CN108644415B (en) | 2018-06-14 | 2018-06-14 | Valve core and valve |
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| Country | Link |
|---|---|
| CN (1) | CN108644415B (en) |
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| US4545408A (en) * | 1982-09-07 | 1985-10-08 | Applied Power, Inc. | Seal for a rotary hydraulic valve |
| US6260822B1 (en) * | 2000-01-04 | 2001-07-17 | Worldwide Oilfield Machine, Inc | Seat assembly for a gate valve |
| JP2001254844A (en) * | 2000-03-14 | 2001-09-21 | Toshiba Corp | Biplane valve |
| CN2765021Y (en) * | 2004-10-26 | 2006-03-15 | 李强 | Pressurized auxiliary sealing valve |
| CN102695901A (en) * | 2009-12-21 | 2012-09-26 | 美卓自动化有限公司 | Valve and sealing ring |
| CN105065706A (en) * | 2015-08-07 | 2015-11-18 | 张鹤鸣 | Air bag closed type stainless steel hemisphere valve |
| CN106246957A (en) * | 2016-08-02 | 2016-12-21 | 合肥通用机械研究院 | A kind of series connection four way ball valve group |
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2018
- 2018-06-14 CN CN201810613347.1A patent/CN108644415B/en active Active
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|---|---|---|---|---|
| US4545408A (en) * | 1982-09-07 | 1985-10-08 | Applied Power, Inc. | Seal for a rotary hydraulic valve |
| US6260822B1 (en) * | 2000-01-04 | 2001-07-17 | Worldwide Oilfield Machine, Inc | Seat assembly for a gate valve |
| JP2001254844A (en) * | 2000-03-14 | 2001-09-21 | Toshiba Corp | Biplane valve |
| CN2765021Y (en) * | 2004-10-26 | 2006-03-15 | 李强 | Pressurized auxiliary sealing valve |
| CN102695901A (en) * | 2009-12-21 | 2012-09-26 | 美卓自动化有限公司 | Valve and sealing ring |
| CN105065706A (en) * | 2015-08-07 | 2015-11-18 | 张鹤鸣 | Air bag closed type stainless steel hemisphere valve |
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| Publication number | Publication date |
|---|---|
| CN108644415B (en) | 2023-10-13 |
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