CN108662212A - Check valve - Google Patents
Check valve Download PDFInfo
- Publication number
- CN108662212A CN108662212A CN201710209701.XA CN201710209701A CN108662212A CN 108662212 A CN108662212 A CN 108662212A CN 201710209701 A CN201710209701 A CN 201710209701A CN 108662212 A CN108662212 A CN 108662212A
- Authority
- CN
- China
- Prior art keywords
- valve seat
- drive link
- check valve
- tubular body
- spool
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 11
- 239000012530 fluid Substances 0.000 abstract description 29
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
-
- 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
- F16K15/00—Check valves
- F16K15/18—Check valves with actuating mechanism; Combined check valves and actuated valves
- F16K15/182—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism
- F16K15/1821—Check valves with actuating mechanism; Combined check valves and actuated valves with actuating mechanism for check valves with a hinged or pivoted closure member
Abstract
The present invention provides a kind of check valve, is related to fluid control devices technology.The check valve, including：Tubular body is provided with valve seat and spool in the tubular body, and the spool is plate-like and can cover the centre bore of the valve seat, and the spool is hinged on the first side of the valve seat；The valve seat is connected with driving device, the driving device for driving the valve seat to overturn so that the spool by one end of the tubular body towards another end motion.Check valve provided by the invention, by the way that the valve seat is connect with driving device, the valve seat overturning is driven by the driving device, so that the spool by one end of the tubular body towards another end motion, to, effectively increase the flexibility of check valve so that live staff can adjust the entrance direction of check valve at any time according to the actual demand of operating mode.
Description
Technical field
The present invention relates to fluid control devices technology more particularly to a kind of check valves.
Background technology
Check valve is a kind of control element for controlling fluid flow direction, and specifically, check valve only allows fluid edge
Entrance enters, only allows one-directional fluid flow from outlet outflow namely check valve；Wherein, fluid includes liquids and gases.Unidirectionally
The one-way flow characteristic of valve makes check valve be widely used in field of fluid control.
Existing check valve is generally connected between the first equipment and the second equipment, is specifically included：Valve body, in the valve body
It is fixedly installed valve seat, the valve seat is provided with fluid channel, and the conical surface is provided in the fluid channel, is arranged at the conical surface
There is steel ball, spring is further fixedly arranged in the fluid channel, the steel ball is pressed on the conical surface by one end of the spring
On.When fluid is from entrance incoming fluid channel, fluid pushes steel ball to be moved far from the conical surface by the pressure of itself, and compresses bullet
Spring so that fluid passes through between the conical surface and steel ball；When fluid is from outlet incoming fluid channel, pressure that fluid passes through itself
It pushes steel ball to be moved towards the conical surface, also steel ball is pressed on the conical surface so that fluid can not pass through between the conical surface and steel ball.
In above-mentioned check valve, entrance namely the fluid channel fixation that valve seat is provided with side towards the check valve of the conical surface are set
The one end for being equipped with spring is the entrance of check valve；When the entrance of check valve is connected to the first equipment, outlet is connected to the second equipment
Later, fluid can only flow to the second equipment from the first equipment, when needing fluid to flow to the first equipment from the second equipment, need by
Check valve dismounting and Opposite direction connection, it can be seen that, check valve is poor to the adaptability of different operating modes namely the flexibility of check valve
It is poor.
Invention content
In view of the above-mentioned drawbacks in the prior art, the present invention provides a kind of check valve, can effectively improve the spirit of check valve
Activity.
The present invention provides a kind of check valve, which is characterized in that including：Tubular body is provided with valve in the tubular body
Seat and spool, the spool is plate-like and can cover the centre bore of the valve seat, and the spool is hinged on the valve seat
First side；The valve seat is connected with driving device, the driving device for driving the valve seat to overturn so that the spool by
One end of the tubular body is towards another end motion.
Further, the driving device includes：First drive link and drive component, the first drive link setting exist
The second side of the valve seat, first drive link are arranged perpendicular to the valve seat and the axial of tubular body, and described first
Drive link is connect with drive component, and the driving component is for driving the valve seat to be revolved as axis using first drive link
Turn.
Further, first for passing through for the first end of first drive link is provided on the tubular body to lead to
Hole, and first end for installing first drive link the first mounting hole；Wherein, it is provided on valve seat for described in confession
The via that the first end of first drive link passes through.
Further, it is provided with fixing groove on the side wall of the first end of first drive link, is arranged in the fixing groove
There is locating ring, the locating ring is for limiting the first end of first drive link towards the movement of the valve seat.
Further, it is provided with locating ring between the locating ring and the hole wall of first mounting hole；Described second is solid
Determine hole and is also inserted with first end cover.
Further, the driving component includes：Second drive link, the first end of second drive link and described first
The second end of drive link is fixedly connected, and the cross-sectional area of the second end of second drive link is less than the of second drive link
The cross-sectional area of one end；The second end of second drive link is equipped with handle.
Further, it is provided with locator on the tubular body, at least two positioning cards are provided on the locator
Slot, the locating groove with handle for engaging；Wherein, the handle is slidably located on first drive link.
Further, the cross section of first drive link and/or second drive link is polygon.
Further, the valve seat includes valve seat body, and the second side of the valve seat body is provided with the first mounting portion, institute
It states and offers via on the first mounting portion, the via is used to pass through for first drive link；First mounting portion is opposite
It is recessed inwardly the first pre-determined distance in the outer edge of the valve seat body.
Further, the first sealing ring is arranged in the valve seat body, the outer edge of first sealing ring is arc-shaped.
Check valve provided by the invention is driven by being connect with driving device the valve seat by the driving device
Valve seat overturning so that the spool by one end of the tubular body towards another end motion, to effectively increase list
Flexibility to valve so that live staff can adjust the entrance court of check valve at any time according to the actual demand of operating mode
To.
Description of the drawings
Fig. 1 is the structural schematic diagram of one embodiment of check valve of the present invention；
Fig. 2 is the structural schematic diagram of another embodiment of check valve of the present invention；
Fig. 3 is the structural schematic diagram of one embodiment of valve seat and spool in check valve of the present invention；
Fig. 4 is the layout enlarged diagram of Fig. 2；
Fig. 5 is the structural schematic diagram of the another embodiment of check valve of the present invention.
Wherein, 100- tubular bodies；100a- first is open；100b- second is open；110- first end covers；120- second ends
Lid；200- valve seats；210- valve seat bodies；The articulated sections 220-；The first mounting portions of 230-；230a- vias；The first sealing rings of 240-；
300- spools；400- driving devices；The first drive links of 410-；411- locating rings；412- locating rings；420- drive components；421-
Second drive link；422- handles；423- locators.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.In the absence of conflict, following embodiments and implementation
Feature in example can be combined with each other.
Wherein, the term of "left", "right", "inner", "outside" etc. is for describing the relative position of each structure in the accompanying drawings
Relationship, only being illustrated for ease of narration, rather than to limit the scope of the invention, the change of relativeness or tune
It is whole, in the case where changing technology contents without essence, when being also considered as the enforceable scope of the present invention.
It should be noted that in the description of the present invention, term " first ", " second ", which are only used for facilitating, describes different portions
Part is not understood to indicate or imply ordinal relation, relative importance or the number for implicitly indicating indicated technical characteristic
Amount." first " is defined as a result, the feature of " second " can explicitly or implicitly include at least one of the features.
Fig. 1 is the structural schematic diagram of one embodiment of check valve of the present invention.
Fig. 1 is please referred to, the present embodiment provides a kind of check valves, including：Tubular body 100 is provided in tubular body 100
Valve seat 200 and spool 300, spool 300 are hinged on the first side of valve seat 200；Valve seat 200 is connected with driving device 400, driving dress
400 are set for driving valve seat 200 to overturn so that spool 300 by one end of tubular body 100 towards another end motion.
Specifically, tubular body 100 is hollow structure, and the first end of tubular body 100 is provided with the first opening 100a, the
Two ends are provided with the second opening 100b, the first opening 100a and are connected to by fluid channel with the second opening 100b, enable fluid to
It is enough to pass through from tubular body 100.Valve seat 200 is provided in tubular body 100, valve seat 200 is also equipped with centre bore, for stream
Body passes through；Wherein, the radial parallel setting of the radial direction of valve seat 200 and tubular body 100.First side of valve seat 200 extends to form
There are articulated section 220, spool 300 can be hinged by articulated shaft or hinge and the articulated section 220；Wherein, spool 300 is in plate
Shape, and the centre bore on valve seat 200 can be covered, so that check valve being capable of counterflow-preventing.
Valve seat 200 is connect with driving device 400, to drive valve seat 200 to overturn by driving device 400, specifically, driving
Device 400 can drive valve seat 200 to overturn around X-axis or overturn about the z axis；Specifically, it is provided with torsion shaft on valve seat 200, turned over
Shaft can be drivingly connected with motor, to drive torsion shaft rotation by motor, then valve seat 200 be driven to overturn.In valve seat 200
During overturning, spool 300 is also overturn with valve seat 200, such as：Spool 300 is currently towards the first opening of tubular body 100
100a, at this point, the second opening 100b is the entrance of check valve, as shown in the bold portion in Fig. 1；It is driven by driving device 400
Dynamic valve seat 200 overturns 180 degree along Z axis, then this spool 300 is open 100a towards the first of tubular body 100, at this point, first opens
Mouth 100a is the entrance of check valve, as shown in the dotted portion in Fig. 1.Wherein, the direction of X, Y, Z are as shown in Figure 1.
In the present embodiment, such as：First opening 100a of tubular body 100 is connected to the first equipment, tubular body 100
Second opening 100b is connected to the second equipment；When needing fluid to flow to the second equipment from the first equipment, driven by driving device 400
The dynamic overturning of valve seat 200 is to spool 300 towards the second opening 100b, at this point, the entrance of check valve is the first opening 100a；Work as needs
Fluid flows to first fluid from second fluid, then can drive the overturning of valve seat 200 to spool 300 towards the by driving device 400
One opening 100a, at this point, the entrance of check valve is the second opening 100b.
Check valve provided in this embodiment is driven by being connect with driving device 400 valve seat 200 by driving device 400
Dynamic valve seat 200 is overturn so that spool 300 by one end of tubular body 100 towards another end motion, to effectively increase list
Flexibility to valve so that live staff can adjust the entrance court of check valve at any time according to the actual demand of operating mode
To.
Fig. 2 is the structural schematic diagram of another embodiment of check valve of the present invention；Fig. 3 be check valve of the present invention in valve seat 200 and
The structural schematic diagram of 300 1 embodiment of spool；Fig. 4 is the layout enlarged diagram of Fig. 2.
Fig. 2-4 is please referred to, further, driving device 400 includes：First drive link 410 and drive component 420, the
One drive link 410 is arranged the second side in valve seat 200, and the first drive link 410 is perpendicular to valve seat 200 and tubular body 100
Axial setting, the first drive link 410 are connect with drive component 420, and drive component 420 is for driving valve seat 200 with the first transmission
Bar 410 is that axis is rotated.
Specifically, the first drive link 410 perpendicular to valve seat 200 and tubular body 100 axial setting, valve seat 200 with
First drive link 410 is that axis is rotated, that is, valve seat 200 rotates about the z axis.Valve seat 200 includes valve seat body 210, valve
The second side of seat main body 210 is provided with the first mounting portion 230, and via 230a is offered on the first mounting portion 230, and via 230a is used
Pass through in for the first drive link 410；Preferably, the cross section for the part of the first drive link 410 being threaded through in via 230a is
The shape of polygon, via 230a need to be matched with the cross section for the part of the first drive link 410 being threaded through in via 230a,
So that the first drive link 410 can smoothly drive valve seat 200 to overturn.
Further, the first mounting portion 230 is recessed inwardly the first pre-determined distance relative to the outer edge of valve seat body 210,
So that valve seat 200 can smoothly be overturn.The present embodiment is not specifically limited the first pre-determined distance, and those skilled in the art can
To be configured according to actual needs, if can first pre-determined distance can avoid the first mounting portion 230 interfere valve seat 200
Overturning.Certainly, the first mounting portion 230 can also be arranged in the first side of valve seat 200, at this point, the first mounting portion 230 with
Articulated section 220 can be arranged together, in order to avoid drive link interferes the movement of spool 300, the setting of spool 300 to deviate from drive link
The side of valve seat 200.At this time, it may be necessary to the numerical value of the first pre-determined distance is rationally set, in case the first mounting portion 230 interferes valve seat
200 overturning.
Further, the first sealing ring 240 is arranged in valve seat body 210, to improve tubular body 100 and valve seat body
Sealing performance between 210；The outer edge of first sealing ring 240 is arc-shaped, so that valve seat 200 can smoothly be overturn.
Further, first for passing through for the first end of the first drive link 410 is provided on tubular body 100 to lead to
Hole, and first end for installing the first drive link 410 the first mounting hole.
Specifically, the first mounting hole can be blind hole, and the first end of the first drive link 410 can be with the bottom of the first mounting hole
Wall offsets；Preferably, the first mounting hole can be stepped hole, the first mounting hole is towards the fluid channel inside tubular body 100
The first aperture of first part be less than towards the second aperture of the second part outside tubular body 100, the first mounting hole
First part is used to coordinate with the first end of the first drive link 410, wherein the cross section of the first end of the first drive link 410 can
Think circle.It should be noted that：First mounting hole needs the rotation of the first end for the first drive link 410 to provide enough skies
Between.
The second part of first mounting hole can be used for installing first end cover 110, is specifically as follows and is spirally connected, first end cover
110 can offset with the first end of the first drive link 410.Wherein, can be arranged between first end cover 110 and the first mounting hole close
Sealing.
Further, it is provided with fixing groove on the side wall of the first end of the first drive link 410, positioning is provided in fixing groove
Ring 411, locating ring 411 is for limiting the first end of the first drive link 410 towards the movement of valve seat 200.
Specifically, locating ring 411 is arranged in the second part of the first mounting hole, on the cross section of locating ring 411 most
Long length is more than the maximum length of the cross section of the first end of the first drive link 410, to avoid the first end of the first drive link 410
It is moved towards valve seat 200.Such as：The cross section of the first end of first drive link 410 can be circle, and fixing groove can be semicircle
Shape, to coordinate with semicircular locating ring 411, when the first drive link 410 rotates, locating ring 411 rotates therewith；At this point, fixed
Position ring 411 outer diameter be more than the first end of the first drive link 410 outer diameter.Certainly, the first end of the first drive link 410 can be with
For shape changeable, locating ring 411 is also not necessarily limited to semicircle, as long as locating ring 411 can realize that it limits the first drive link 410
Function of the one end towards the movement of valve seat 200.
Wherein, locating ring can be contributed to locating ring 412 by being provided between locating ring 411 and the hole wall of the first mounting hole
411 are reliably fastened in locating slot.
Fig. 5 is the structural schematic diagram of the another embodiment of check valve of the present invention.
Fig. 5 is please referred to, further, at the first through hole of tubular body 100, the interconnecting piece of tubulose can be provided with, it should
Second end cover 120 and the second drive link 421 are provided in interconnecting piece；Wherein, the second drive link 421 is threaded through second end cover
In 120, second end cover 120 is spirally connected with interconnecting piece, and the confined air that second end cover 120, interconnecting piece and the second drive link 421 surround
It is interior to be filled with stuffing-box, to improve the sealing performance of check valve.The first end of second drive link 421 and the first drive link 410
Second end be fixedly connected, can be key connection or pin connection etc., between the first drive link 410 and the second drive link 421
It is provided with sealing element；First drive link 410 is connect by the second drive link 421 with handle 422；Wherein, the second drive link 421 with
Handle 422 belongs to drive component 420.
Further, the cross-sectional area of the second end of second drive link 421 is less than the of second drive link 421
The cross-sectional area of one end；The second end in second drive link 421 is arranged in handle 422；Meanwhile the connection of tubular body 100
Portion's also fixing sleeve is equipped with locator 423, is specifically as follows and is spirally connected, welds or is clamped；Locator 423 is in peviform, locator
At least two locating grooves are provided on 423 side wall, the locating groove with handle 422 for engaging；Wherein, the handle
422 are slidably located on first drive link 410.
Specifically, the installation position of locating groove and setting quantity, those skilled in the art can be according to actual needs
It is configured；When handle 422 is located in one of in locating groove, valve seat 200 is in a specific position.Such as：With valve
Seat is 200 coaxial with tubular body 100, and spool 300 towards tubular body 100 the first opening 100a when, handle 422 is positioning
Corresponding position is 0 degree on device 423, then can offer positioning at 0 degree of locator 423,90 degree, 180 degree, 270 degree
Card slot；Wherein, when handle 422 is located in 90 degree and 270 degree of corresponding locating grooves, check valve is in failure state；Work as hand
When handle 422 is located in the locating groove corresponding to 180 degree, spool 300 towards second opening 100b, at this time check valve be left list
To；When handle 422 is located in 0 degree of corresponding locating groove, spool 300 is towards the first opening 100a, at this time check valve
It is right unidirectional.
In the present embodiment, when needing to rotate valve seat 200, need to move up handle 422 relative to the second drive link 421,
So that handle 422 is detached from the locating groove of locator 423, at this point, handle 422 is in free state；According to actual needs, it rotates
After 422 predetermined angle of handle, so that handle 422 is fallen after rise, and be fastened in locating groove, realizes the positioning to handle 422, Jin Ershi
Now to the positioning of valve seat 200.Preferably, the cross section of second drive link 421 is also polygon, so that handle 422 can
Smoothly drive the rotation of the second drive link 421.
Check valve provided in this embodiment at least has the function of left unidirectional, right unidirectional and unidirectional three kinds of failure, is applicable to
At pump discharge, when needing to fill pump, make the unidirectional failure of check valve, recharging pump is returned using the fluid of pump discharge pipeline, to replace
It makes a breakthrough and fills pump operation, reduce workload；Between can be also used for two mutually spare equipment, the left unidirectional or right list of selection
To realizing the spare each other and complementary interference of equipment.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of check valve, which is characterized in that including：Tubular body is provided with valve seat and spool in the tubular body, described
Spool is plate-like and can cover the centre bore of the valve seat, and the spool is hinged on the first side of the valve seat；The valve
Seat is connected with driving device, and the driving device is for driving the valve seat to overturn, so that the spool is by the tubular body
One end towards another end motion.
2. check valve according to claim 1, which is characterized in that the driving device includes：First drive link and drive
Dynamic component, first drive link are arranged the second side in the valve seat, first drive link perpendicular to the valve seat and
The axial setting of tubular body, first drive link are connect with drive component, and the driving component is for driving the valve seat
It is rotated as axis using first drive link.
3. check valve according to claim 2, which is characterized in that be provided on the tubular body for supplying described first
The first through hole that the first end of drive link passes through, and first end for installing first drive link the first mounting hole；
Wherein, the via for being passed through for the first end of first drive link is provided on valve seat.
4. check valve according to claim 3, which is characterized in that be arranged on the side wall of the first end of first drive link
There is fixing groove, locating ring is provided in the fixing groove, the locating ring is used to limit the first end court of first drive link
Movement to the valve seat.
5. check valve according to claim 4, which is characterized in that the hole wall of the locating ring and first mounting hole it
Between be provided with locating ring；Second mounting hole is also inserted with first end cover.
6. check valve according to claim 2, which is characterized in that the driving component includes：Second drive link, described
The first end of two drive links is fixedly connected with the second end of first drive link, the second end of second drive link it is transversal
Area is less than the cross-sectional area of the first end of second drive link；The second end of second drive link is equipped with handle.
7. check valve according to claim 6, which is characterized in that locator is provided on the tubular body, it is described fixed
At least two locating grooves are provided on the device of position, the locating groove with handle for engaging；Wherein, the handle sliding is arranged
On first drive link.
8. check valve according to claim 6, which is characterized in that first drive link and/or second drive link
Cross section be polygon.
9. check valve according to claim 2, which is characterized in that the valve seat includes valve seat body, the valve seat body
The second side be provided with the first mounting portion, offer via on first mounting portion, the via is used to pass for described first
Lever passes through；First mounting portion is recessed inwardly the first pre-determined distance relative to the outer edge of the valve seat body.
10. check valve according to claim 9, which is characterized in that be arranged with the first sealing ring, institute in the valve seat body
The outer edge for stating the first sealing ring is arc-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209701.XA CN108662212A (en) | 2017-03-31 | 2017-03-31 | Check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710209701.XA CN108662212A (en) | 2017-03-31 | 2017-03-31 | Check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108662212A true CN108662212A (en) | 2018-10-16 |
Family
ID=63784320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710209701.XA Pending CN108662212A (en) | 2017-03-31 | 2017-03-31 | Check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108662212A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899497A (en) * | 2021-09-17 | 2022-01-07 | 清华大学 | Testing device for simulating sealing performance of one-way valve |
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|---|---|---|---|---|
| CN2104350U (en) * | 1991-05-09 | 1992-05-13 | 沈阳变压器厂 | valve for transformer |
| US5285816A (en) * | 1991-12-11 | 1994-02-15 | Rapid Developments Ltd. | One way valve |
| CN1115369A (en) * | 1994-05-26 | 1996-01-24 | 杨炯良 | Sealing wear self-compensating butterfly valve |
| CN102094984A (en) * | 2010-12-13 | 2011-06-15 | 芜湖博耐尔汽车电气系统有限公司 | Automobile air conditioning heater water valve |
| CN202629133U (en) * | 2012-01-19 | 2012-12-26 | 浙江特宏阀门有限公司 | Flange ball valve |
| CN103899803A (en) * | 2013-03-19 | 2014-07-02 | 倪维勇 | Check valve capable of changing direction |
| CN103899796A (en) * | 2012-12-31 | 2014-07-02 | 中钢集团衡阳重机有限公司 | One-way valve |
| CN203906829U (en) * | 2014-06-24 | 2014-10-29 | 浙江顺源阀门有限公司 | Waterway butterfly valve |
| CN104358899A (en) * | 2014-11-25 | 2015-02-18 | 天津百利展发集团有限公司 | Reversible water injection check valve |
| CN212177969U (en) * | 2020-04-24 | 2020-12-18 | 上海诺科泵业有限公司 | One-way valve |
-
2017
- 2017-03-31 CN CN201710209701.XA patent/CN108662212A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2104350U (en) * | 1991-05-09 | 1992-05-13 | 沈阳变压器厂 | valve for transformer |
| US5285816A (en) * | 1991-12-11 | 1994-02-15 | Rapid Developments Ltd. | One way valve |
| CN1115369A (en) * | 1994-05-26 | 1996-01-24 | 杨炯良 | Sealing wear self-compensating butterfly valve |
| CN102094984A (en) * | 2010-12-13 | 2011-06-15 | 芜湖博耐尔汽车电气系统有限公司 | Automobile air conditioning heater water valve |
| CN202629133U (en) * | 2012-01-19 | 2012-12-26 | 浙江特宏阀门有限公司 | Flange ball valve |
| CN103899796A (en) * | 2012-12-31 | 2014-07-02 | 中钢集团衡阳重机有限公司 | One-way valve |
| CN103899803A (en) * | 2013-03-19 | 2014-07-02 | 倪维勇 | Check valve capable of changing direction |
| CN203906829U (en) * | 2014-06-24 | 2014-10-29 | 浙江顺源阀门有限公司 | Waterway butterfly valve |
| CN104358899A (en) * | 2014-11-25 | 2015-02-18 | 天津百利展发集团有限公司 | Reversible water injection check valve |
| CN212177969U (en) * | 2020-04-24 | 2020-12-18 | 上海诺科泵业有限公司 | One-way valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899497A (en) * | 2021-09-17 | 2022-01-07 | 清华大学 | Testing device for simulating sealing performance of one-way valve |
| CN113899497B (en) * | 2021-09-17 | 2022-07-15 | 清华大学 | Testing device for simulating sealing performance of one-way valve |
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