CN104728472B - Switching device is in fluid communication in one kind - Google Patents
Switching device is in fluid communication in one kind Download PDFInfo
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- CN104728472B CN104728472B CN201510119137.3A CN201510119137A CN104728472B CN 104728472 B CN104728472 B CN 104728472B CN 201510119137 A CN201510119137 A CN 201510119137A CN 104728472 B CN104728472 B CN 104728472B
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- Prior art keywords
- valve plug
- movable valve
- holding tank
- fluid communication
- switching device
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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
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/074—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces
- F16K11/0743—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with flat sealing faces with both the supply and the discharge passages being on one side of the closure plates
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/10—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members with special arrangements for separating the sealing faces or for pressing them together
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
Abstract
The invention discloses one kind to be in fluid communication switching device, is related to fluid circuit control technology field, solves the problems, such as it is to solve the problems, such as the processing of fluid abrasive dust, improves the service life that switching device is in fluid communication.The technical scheme mainly used for：Housing, it has roof and surrounding wall, and the inner surface setting of the surrounding wall has the first holding tank；Fixed valve plug, it is arranged in the housing；Movable valve plug, it is arranged in the housing, the movable valve plug first end face is engaged with the fixed valve plug first end face face；Back-up ring, it is arranged in first holding tank, and between the movable valve plug and first holding tank；Rotary connector, it is connected with the movable valve plug；Drive device, it includes drive shaft, and the drive shaft is connected with the rotary connector；Position selection device, for controlling the drive device to rotate.Present invention is mainly used for fluid analysis technical field.
Description
Technical field
The present invention relates to fluid circuit control technology field, and switching device is in fluid communication more particularly to one kind.
Background technology
The existing switching device that is in fluid communication includes housing, the fixed valve plug being arranged in housing, is arranged on moving in housing
Valve element and the drive device being arranged in housing, in the case where fixed valve plug and movable valve plug are adjacent to sealing, when movable valve plug is driving
When rotating to different angle under the drive of dynamic device, multiple fluid passages on fixed valve plug are corresponding by the guiding gutter on movable valve plug
Connection, realizes the switching control of convection body.Due to switching device is in fluid communication under much time using, fixed valve plug and movable valve plug
Cooperation at can produce fluid abrasive dust, if fluid abrasive dust long-term existence in be in fluid communication switching device in, can corrosive fluids connection
Part in switching device, so as to cause the service life that switching device is in fluid communication not grown.
The content of the invention
In view of this, the present invention provides a kind of fluid communication switching device, and main purpose is solve fluid abrasive dust
The problem of processing, improve the service life that switching device is in fluid communication.
To reach above-mentioned purpose, present invention generally provides following technical scheme：
On the one hand, embodiments of the invention provide a kind of fluid communication switching device, and it includes：
Housing, it has roof and surrounding wall, has multiple pores, the inner surface setting of the surrounding wall on the roof
There is the first holding tank；
Fixed valve plug, it is arranged in the housing；The fixed valve plug is internally provided with multiple fluid passages, multiple fluids
Passage has respectively corresponds the first gateway connected with multiple pores, and multiple fluid passages have respectively to be set
Put the second gateway in the fixed valve plug first end face；
Movable valve plug, it is arranged in the housing；The movable valve plug first end face and the fixed valve plug first end plane-plane contact
Coordinate, one or more guiding gutters are provided with the first end face of the movable valve plug；
Back-up ring, it is arranged in first holding tank, and between the movable valve plug and first holding tank；
Rotary connector, it is connected with the movable valve plug, for driving the movable valve plug to rotate；
Drive device, it includes drive shaft, and the drive shaft is connected with the rotary connector, for driving the rotation
Connector rotates；
Position selection device, for controlling the drive device to rotate；
Wherein, when the drive device drives the rotary connector rotation different so as to drive the movable valve plug to go to
During angle, multiple second gateways connect by the way that one or more of guiding gutters are corresponding each other.
As previously described, in addition to：Pre-tightening mechanism, it includes elastic device and pretension fixture；
The elastic device is arranged on the rotary connector；
The pretension fixture is fixed in the drive device, and is connected with the housing.
As previously described, the inner surface setting of the surrounding wall has the second holding tank, and second holding tank corresponds to institute
At the cooperation for stating fixed valve plug and the movable valve plug.
As previously described, the outer surface of the surrounding wall is provided with least one pod apertures, at least one pod apertures
Second holding tank is communicated in the inside of the surrounding wall.
As previously described, the rotary connector includes pallet and rotary shaft；
The rotary connector is connected with the movable valve plug：
The movable valve plug is connected with the pallet；
The drive shaft is connected with the rotary connector：
The drive shaft and the rotation axis connection；
The elastic device is arranged on the rotary connector：
The elastic device is arranged in the rotary shaft.
As previously described, the second end face of the movable valve plug is provided with the 3rd holding tank；
The tray bottom upper surface middle part is provided with lug boss；
The movable valve plug is connected with the pallet：
The lug boss is connected together with the 3rd holding tank.
As previously described, the pre-tightening mechanism also includes plane bearing；
The plane bearing is arranged in the drive shaft；And positioned at the elastic device and the pretension fixture it
Between；Or
The plane bearing is arranged in the rotary shaft, and between the pallet and the elastic device.
As previously described, in addition to：Multiple extruding type conduits, each extruding type conduit pass through the corresponding pore
In the fluid passage corresponding to insertion.
By above-mentioned technical proposal, a kind of switching device that is in fluid communication of the present invention at least has following advantages：
The fluid communication switching device of the present invention is set back-up ring by the holding tank of inner surface setting first in surrounding wall
In the first holding tank, make back-up ring between movable valve plug and the first holding tank so that switching device is in fluid communication when in use,
If have at the cooperation of the driven valve element of fluid abrasive dust and fixed valve plug flow out, and along movable valve plug wall flow when, back-up ring can hinder
Fluid stopping body abrasive dust flows, and prevents side wall of the fluid abrasive dust along movable valve plug miscellaneous part direction into housing from flowing, so as to prevent
Fluid abrasive dust corrodes miscellaneous part, the design of the structure, improves the service life that switching device is in fluid communication.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Brief description of the drawings
Fig. 1 is a kind of fluid communication switching device structural representation that embodiments of the invention provide；
Fig. 2 is a kind of fixed valve plug upward view that embodiments of the invention provide；
Fig. 3 is a kind of movable valve plug top view that embodiments of the invention provide；
Fig. 4 is another fixed valve plug upward view that embodiments of the invention provide；
Fig. 5 is another movable valve plug top view that embodiments of the invention provide；
Fig. 6 is another fixed valve plug upward view that embodiments of the invention provide；
Fig. 7 is another movable valve plug top view that embodiments of the invention provide；
Fig. 8 is the logical one other fluid connection switching device structural representation of embodiments of the invention；
Fig. 9 is a kind of movable valve plug and rotary connector attachment structure schematic diagram that embodiments of the invention provide.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that predetermined goal of the invention is taken, below in conjunction with
Accompanying drawing and preferred embodiment, to embodiment, structure, feature and its effect according to the present patent application, describe in detail such as
Afterwards.In the following description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.It is in addition, one or more
Special characteristic, structure or feature in individual embodiment can be combined by any suitable form.
As shown in figure 1, a kind of fluid communication switching device that one embodiment of the present of invention proposes, it includes：Housing 1,
Fixed valve plug 2, movable valve plug 3, back-up ring 4, rotary connector 5, drive device 6 and position selection device (not shown).Wherein,
Housing 1, it has roof 11 and surrounding wall 12, has multiple pores 111, the surrounding wall 12 on the roof 11
Inner surface setting have the first holding tank 121；
Fixed valve plug 2, it is arranged in the housing 1；The fixed valve plug 2 is internally provided with multiple fluid passages 21, Duo Gesuo
State fluid passage 21 has the first gateway 211 connected with multiple one-to-one corresponding of pores 111, multiple fluids respectively
Passage 21 has the second gateway 212 being arranged in the fixed valve plug first end face (not shown) respectively；
Movable valve plug 3, it is arranged in the housing 1；The movable valve plug first end face (not shown) and the fixed valve plug
First end face face is engaged, and one or more guiding gutters 31 are provided with the movable valve plug first end face；
Back-up ring 4, it is arranged in first holding tank 121, and is located at the movable valve plug 3 and first holding tank 121
Between；
Rotary connector 5, it is connected with the movable valve plug 3, for driving the movable valve plug 3 to rotate；
Drive device 6, it includes drive shaft 61, and the drive shaft 61 is connected with the rotary connector 5, for driving
Rotary connector 5 is stated to rotate；
Position selection device, for controlling the drive device 6 to rotate；
Wherein, when the drive device 6 drives the rotary connector 5 to rotate so as to drive the movable valve plug 3 to go to not
With angle when, multiple second gateways 212 pass through that one or more of guiding gutters 31 are corresponding to be connected each other.
Back-up ring 4 is arranged on first by the embodiment of the present invention by the first holding tank of inner surface setting 121 in surrounding wall 12
In holding tank 121, back-up ring 4 is set to be located between the holding tank 121 of movable valve plug 3 and first so that switching device is in fluid communication and is using
When, flowed out if having at the cooperation of the driven valve element 3 of fluid abrasive dust and fixed valve plug 2, and along movable valve plug 3 wall flow when, back-up ring 4
Fluid abrasive dust can be prevented to flow, prevent side wall of the fluid abrasive dust along movable valve plug 3 miscellaneous part direction into housing from flowing, from
And prevent that fluid abrasive dust from corroding miscellaneous part, the design of the structure, improves the service life that switching device is in fluid communication.
Further, multiple fluid passages 21 have a variety of layout type, and guiding gutter 31 also has a variety of layout type, its
In, the layout type of guiding gutter 31 is changed accordingly with the change of multiple layout type of fluid passage 21.
A kind of layout type of multiple fluid passages 21 and guiding gutter 31 is：
As shown in Fig. 2 a fluid passage in multiple fluid passages 21 is arranged on the center of fixed valve plug 2, other fluids
For passage using the center of fixed valve plug 2 as round dot, it is S to be evenly distributed on radius1Circumference on；
As shown in figure 3, one end of guiding gutter 31 is arranged on the center of movable valve plug first end face, the length of guiding gutter 31 is equal to
S1Length, wherein the quantity of guiding gutter 31 be one；
When drive device 6 drives rotary connector 5 to rotate so as to drive movable valve plug 3 to go to different angles, it is arranged on
Second gateway 212 is alternatively connected by guiding gutter 31 and other fluid passages corresponding to the fluid passage at the center of fixed valve plug 2
It is logical.
Another layout type of multiple fluid passages 21 and guiding gutter 31 is：
As shown in figure 4, it is S that multiple fluid passages 21, which using the center of fixed valve plug 2 as round dot, are evenly distributed on radius,2Circle
Zhou Shang, the distance between multiple second gateways 212 are equal；
As shown in figure 5, using the center of movable valve plug first end face as round dot, it is S that guiding gutter 31, which is arranged on radius,2Circumference
On, the length of guiding gutter 31 is equal to the distance between multiple second gateways 212, wherein, the quantity of guiding gutter 31 can be
One or more, the specific embodiment of the present invention are not limited to this, can be set according to demand.
When the drive device 6 drives the rotary connector 5 to rotate so as to drive the movable valve plug 3 to go to different angles
When spending, multiple second gateways 212 connect by the way that one or more guiding gutters 31 are corresponding each other.
Another layout type of multiple fluid passages 21 and guiding gutter 31 is：
As shown in fig. 6, a part of fluid passage in multiple fluid passages 21 is using the center of fixed valve plug 2 as the center of circle, uniformly
It is S to be distributed in radius3Circumference on, using the center of fixed valve plug 2 as the center of circle, being evenly distributed on radius is for another part fluid passage
S4Circumference on；Wherein S3Less than S4；
As shown in fig. 7, using the center of movable valve plug first end face as round dot, it is S that one end of guiding gutter 31, which is arranged on radius,3's
On circumference, it is S that the other end, which is arranged on radius,4Circumference on, the length of guiding gutter 31 is equal to S4And S3The distance between, wherein, lead
Chute 31 is one or more, and the specific embodiment of the present invention is not limited to this, can set according to demand.
When the drive device 6 drives the rotary connector 5 to rotate so as to drive the movable valve plug 3 to go to different angles
When spending, multiple second gateways 212 connect by the way that one or more guiding gutters 31 are corresponding each other.
Certain multiple fluid passages 21 and guiding gutter 31 are except more than in addition to several layout type, in addition to others layout side
Formula, and several layout type can also arbitrarily merge combination above, and the specific embodiment of the present invention is not limited to this, only
It is wanted to carry out the protection domain that fluid switching belongs to the embodiment of the present invention.
Further, in order that movable valve plug contacts with fixed valve plug retaining surface, so as to realize good sealing, the fluid
Connection switching device also includes：Pre-tightening mechanism 7, as shown in figure 8, pre-tightening mechanism 7, it includes elastic device 71 and pretension fixture
72；The elastic device 71 is arranged on the rotary connector 5；The pretension fixture 72 is fixed on the drive device 6
On, and be connected with the housing 1.
Specifically, pretension fixture 72 is to be threadedly coupled with housing 1, when switching device is in fluid communication using the present invention,
Pretension fixture 72 is first screwed into housing 1, during pretension fixture 72 is screwed into housing 1, pretension fixture 72 presses to
Elastic device 71, elastic device 71 press to rotary connector 5 after being compressed, rotary connector 5 presses to movable valve plug 3, and movable valve plug 3 is pressed
To fixed valve plug 2, fixed valve plug 2 presses to roof 11, so that movable valve plug 3 and fixed valve plug 2 realize good sealing.Certain pretension is fixed
Part 72 and housing 1 can also be other connected modes, such as the mode that is connected together, the specific embodiment of the present invention to this without
As long as limiting it movable valve plug and fixed valve plug retaining surface can be made to contact the protection domain for belonging to the embodiment of the present invention.
Further, the elastic device 71 can be that disc spring can also be spring, and the specific embodiment of the present invention is to this
It is not limited, as long as its flexible protection domain for belonging to the embodiment of the present invention.
Further, in order to prevent the part in fluid abrasive dust corrosive fluids connection switching device, influence fluid communication and cut
The service life of changing device, the inner surface setting of the surrounding wall 12 have the second holding tank 122, as shown in figure 8, described second holds
Groove 122 of receiving corresponds at the cooperation of the fixed valve plug 2 and the movable valve plug 3, the design of the structure, can make from the He of fixed valve plug 2
The fluid abrasive dust flowed out at the cooperation of movable valve plug 3 is accumulated in the second holding tank 122, prevents fluid abrasive dust along movable valve plug 3
Side wall flow to other parts, so as to prevent the part in fluid abrasive dust corrosive fluids connection switching device.
Further, export fluid abrasive dust, the outer surface of the surrounding wall 12 are provided with pod apertures 123 for convenience, such as
Shown in Fig. 8, the pod apertures 123 are communicated in second holding tank 122, wherein pod apertures in the inside of the surrounding wall 12
123 can be one, or multiple, the specific embodiment of the present invention is not limited to this, can be set according to demand.
Further, the rotary connector 5 includes pallet 51 and rotary shaft 52；As shown in figure 8,
The movable valve plug 3 is connected with the pallet 51；The drive shaft 61 is connected with the rotary shaft 52；The elasticity dress
Put 71 to be arranged in the rotary shaft 52, and can be slided up and down in rotary shaft 52.
Wherein, pallet 51 and rotary shaft 52 can be structure as a whole, or detachable structure, the specific present invention
Embodiment is not limited to this, as long as it can drive movable valve plug 3 to rotate the protection domain for belonging to the embodiment of the present invention.
Further, as shown in figure 9, movable valve plug 3 is inverted convex shape, pallet 51 is concave structure, movable valve plug 3
In the concave structure of bossing insertion pallet 51, anti-rotating connection is formed.Certain movable valve plug 3 can also be concave structure, support
Disk 51 is convex shape, and the bossing of pallet 51 is inserted in the concave structure of movable valve plug 3, and the specific embodiment of the present invention is to this
It is not limited, as long as making movable valve plug connect the protection domain for belonging to the embodiment of the present invention for anti-rotating with rotary connector.
Further, in order that rotary connector 5 is connected more to be bonded submissive, the movable valve plug second with movable valve plug 3
End face (not shown) is provided with the 3rd holding tank 32；As shown in figure 9, it is provided with the middle part of the upper base surface of pallet 51 convex
Play portion 511；The lug boss 511 is connected together with the 3rd holding tank 32.
Further, the lug boss 511 can be sphere structure, or gengon structure, the specific present invention
Embodiment is not limited to this, can be set according to demand.
Further, in order to prevent rotary connector 5 and drive shaft 61 in rotary course, pretension fixture 72 and elasticity
Friction is produced between device 71, influences the service life that switching device is in fluid communication, the pre-tightening mechanism 7 also includes plane bearing
73；As shown in figure 8,
Shown plane bearing 73 is arranged in the drive shaft 61；And fixed positioned at the elastic device 71 and the pretension
Between part 72, or, the plane bearing 73 can also be arranged in the rotary shaft 52, and positioned at the pallet 51 and described
Between elastic device 71.The specific embodiment of the present invention is not limited to this, as long as it can prevent pretension fixture and bullet
Property device between produce friction and belong to the protection domain of the embodiment of the present invention.
Further, the fluid communication switching device also includes：Multiple extruding type conduits 8, each extruding type are led
Pipe 8 sequentially passes through the corresponding pore 111 and inserted in the corresponding fluid passage 21.
Further, the position selection device includes position identifier 9 and control circuit (not shown), such as Fig. 8
Shown, the position identifier 9 is arranged on movable valve plug 3, or the position identifier 9 is arranged on rotary connector 5, tool
The embodiment of the present invention of body is not limited to this, as long as it can carry out the guarantor that selection belongs to the embodiment of the present invention to position
Scope is protected, the control circuit is disposed around on the outer surface of wall 12.
Further, the position identifier 9 is photoelectric code disk.
Back-up ring is arranged on the first holding tank by the embodiment of the present invention by the holding tank of inner surface setting first in surrounding wall
It is interior, make back-up ring between movable valve plug and the first holding tank so that switching device is in fluid communication when in use, if there is fluid abrasive dust
At the cooperation of driven valve element and fixed valve plug flow out, and along movable valve plug wall flow when, back-up ring can prevent fluid abrasive dust stream
It is dynamic, prevent side wall of the fluid abrasive dust along movable valve plug miscellaneous part direction into housing from flowing, so as to prevent fluid abrasive dust from corroding
Miscellaneous part, the design of the structure, improve the service life that switching device is in fluid communication.
The above described is only a preferred embodiment of the present invention, any formal limitation not is made to the present invention, according to
Any simple modification, equivalent change and modification made according to the technical spirit of the present invention to above example, still falls within this hair
In the range of bright technical scheme.
Claims (8)
1. switching device is in fluid communication in one kind, it is characterised in that it includes：
Housing, it has roof and surrounding wall, has multiple pores on the roof, and the inner surface setting of the surrounding wall has
One holding tank；
Fixed valve plug, it is arranged in the housing；The fixed valve plug is internally provided with multiple fluid passages, multiple fluid passages
Have respectively and correspond the first gateway connected with multiple pores, multiple fluid passages have respectively to be arranged on
The second gateway in the fixed valve plug first end face；
Movable valve plug, it is arranged in the housing, the movable valve plug first end face is engaged with the fixed valve plug first end face face,
One or more guiding gutters are provided with the first end face of the movable valve plug；
Back-up ring, it is arranged in first holding tank, and between the movable valve plug and first holding tank；
Rotary connector, it is connected with the movable valve plug, for driving the movable valve plug to rotate, the rotary connector includes support
Disk, the tray bottom upper surface middle part are provided with lug boss, and the pallet is connected by the lug boss with the movable valve plug；
Drive device, it includes drive shaft, and the drive shaft is connected with the rotary connector, for driving the rotatable connection
Part rotates；
Position selection device, for controlling the drive device to rotate；
Wherein, when the drive device drives the rotary connector rotation to drive the movable valve plug to go to different angles
When, multiple second gateways connect by the way that one or more of guiding gutters are corresponding each other.
2. fluid communication switching device according to claim 1, it is characterised in that also include：
Pre-tightening mechanism, it includes elastic device and pretension fixture；
The elastic device is arranged on the rotary connector；
The pretension fixture is fixed in the drive device, and is connected with the housing.
3. fluid communication switching device according to claim 1 or 2, it is characterised in that
The inner surface setting of the surrounding wall has the second holding tank, and second holding tank corresponds to the fixed valve plug and described dynamic
At the cooperation of valve element.
4. fluid communication switching device according to claim 3, it is characterised in that
The outer surface of the surrounding wall is provided with least one pod apertures, and at least one pod apertures are in the surrounding wall
Portion is communicated in second holding tank.
5. fluid communication switching device according to claim 2, it is characterised in that
The rotary connector also includes rotary shaft；
The drive shaft is connected with the rotary connector：
The drive shaft and the rotation axis connection；
The elastic device is arranged on the rotary connector：
The elastic device is arranged in the rotary shaft.
6. fluid communication switching device according to claim 1, it is characterised in that
The second end face of the movable valve plug is provided with the 3rd holding tank；
The lug boss is connected together with the 3rd holding tank.
7. fluid communication switching device according to claim 5, it is characterised in that
The pre-tightening mechanism also includes plane bearing；
The plane bearing is arranged in the drive shaft, and between the elastic device and the pretension fixture；Or
Person,
The plane bearing is arranged in the rotary shaft, and between the pallet and the elastic device.
8. fluid communication switching device according to claim 1, it is characterised in that also include：
Multiple extruding type conduits, the fluid passage corresponding to each extruding type conduit through the corresponding pore insertion
In.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119137.3A CN104728472B (en) | 2015-03-18 | 2015-03-18 | Switching device is in fluid communication in one kind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510119137.3A CN104728472B (en) | 2015-03-18 | 2015-03-18 | Switching device is in fluid communication in one kind |
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| Publication Number | Publication Date |
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| CN104728472A CN104728472A (en) | 2015-06-24 |
| CN104728472B true CN104728472B (en) | 2018-04-06 |
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| CN201510119137.3A Active CN104728472B (en) | 2015-03-18 | 2015-03-18 | Switching device is in fluid communication in one kind |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090563A (en) * | 2015-07-23 | 2015-11-25 | 臧世达 | Multi-position valve |
| CN106704639A (en) * | 2016-12-02 | 2017-05-24 | 深圳市恒永达科技有限公司 | Plane-sealing flow channel selection valve |
| CN112524287A (en) * | 2020-12-08 | 2021-03-19 | 成都市环境保护科学研究院 | Multi-way valve core assembly and multi-way valve |
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| CN201764010U (en) * | 2010-04-14 | 2011-03-16 | 大连思谱精工有限公司 | High-pressure multi-position switching valve |
| CN202109027U (en) * | 2011-06-20 | 2012-01-11 | 南京小桥流水环保科技有限公司 | Eight-position switching valve |
| CN202834202U (en) * | 2012-06-06 | 2013-03-27 | 无锡联合利康临床检验所有限公司 | Sampling valve of liquid chromatography system |
| CN204187047U (en) * | 2014-10-28 | 2015-03-04 | 华中科技大学 | A kind of end surface sealed rotary valve |
| CN204573192U (en) * | 2015-03-18 | 2015-08-19 | 丁文玲 | A kind of fluid is communicated with COMM communication |
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| CN104728472A (en) | 2015-06-24 |
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Effective date of registration: 20220921 Address after: 5th Floor, Building E1, Hutang Headquarters Economic Park, No. 122, Qilidian Road, Qixing District, Guilin City, Guangxi Zhuang Autonomous Region 541500 Patentee after: Guilin Dacheng Intelligent Technology Co.,Ltd. Address before: Room 2802, Floor 327, District 3, Wangjing West Park, Chaoyang District, Beijing 100102 Patentee before: Ding Wenling |