CN106594331A - Plate type non-return valve capable of being reliably sealed - Google Patents
Plate type non-return valve capable of being reliably sealed Download PDFInfo
- Publication number
- CN106594331A CN106594331A CN201710035806.8A CN201710035806A CN106594331A CN 106594331 A CN106594331 A CN 106594331A CN 201710035806 A CN201710035806 A CN 201710035806A CN 106594331 A CN106594331 A CN 106594331A
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- Prior art keywords
- valve
- valve seat
- bearing pin
- plate
- seat
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention provides a plate type non-return valve capable of being reliably sealed. The plate type non-return valve comprises a valve seat, wherein a plurality of runners are arranged on the valve seat; a supporting base is arranged on a position opposite to the valve seat; a plurality of valve plates which are sealed with the runners are connected with a pin roll; and the pin roll and the supporting base can rotate, and can be connected in a reciprocating movement mode relative to the valve seat. The pin roll and the supporting base can rotate, and can be connected in the reciprocating movement mode relative to the valve seat, so that the valve plate and the valve seat can move along the axis of the valve seat, and therefore, under action of pressure, the valve plate can be in reliable contact with a sealing ring of the valve seat in a uniformly stressed mode, and a better sealing effect is realized. With the adoption of the plate type non-return valve capable of being reliably sealed, the sealing effect is good on the premise of ensuring a fluid medium to have a relatively great over-flow section, and poisonous gas further can be prevented from overflowing.
Description
Technical field
The present invention relates to oil extraction part field, particularly a kind of plate check valve of positive sealing.
Background technology
The structure of existing plate check valve realizes the closure of runner by a valve plate as shown in Fig. 8,9, realizes preventing stream
The refluence of body, check-valves control the unlatching and closing of valve plate generally by the flow direction for flowing, and the advantage of plate check valve exists
It is big in area of passage.
Such as 102985733 A of Chinese patent literature CN describes a kind of dual plate check valve, stop pin assemblies are located at
Wherein, can prevent flap valve from moving past precalculated position.In a preferred embodiment, check-valves have two flap valves and are located at two
Stop pin assemblies between individual flap valve, with prevent in two flap valves any one be pivoted beyond substantially vertical position.Stop
Pin assemblies are configured to the stop pin assemblies when check-valves are inserted into and constitute check-valves in valve body and are inserted into and lock in place.Although
The stop pin assemblies being inserted into may include single component, and stop pin assemblies can include three parts, and these parts include central authorities
Part and the first and second end sections.Stop pin assemblies are inserted between two fixtures, and are stopped in a preferred embodiment
Dynamic pin assemblies can be rotated to latched position, and in the latched position, which is in position by securing member.But due to using this valve
The structure of plate rotation, as shown in Figure 9, near the position of rotating pin, the spacing between valve plate and valve seat is unadjustable
, with the abrasion of sealing ring, the sealing effectiveness at this is progressively deteriorated, therefore the sealing effectiveness between valve plate and valve seat is one
More scabrous technical problem, therefore will not generally be applied to the non-return occasion of gaseous fluid.
The content of the invention
The technical problem to be solved is to provide a kind of plate check valve of positive sealing, preferably can realize
Sealing between valve plate and valve seat.
To solve above-mentioned technical problem, the technical solution adopted in the present invention is：A kind of plate check valve of positive sealing,
Including valve seat, valve seat is provided with multiple runners, and the position relative with valve seat is provided with support base, for forming many of sealing with runner
Individual valve plate is connected with bearing pin, and bearing pin and support base are by rotatable and can be connected in the way of opposite valve seat shift reciprocately.
In preferred scheme, valve plate is fixedly connected with the connecting rod, connecting rod and bearing pin pivot joint, bearing pin and at least two slips
Bearing pin is fixedly connected, and slidiing pin is slidably connected with guide pin bushing, and guide pin bushing is fixedly connected with support base.
In preferred scheme, the diameter parallel of slidiing pin and valve seat.
In preferred scheme, the axis of bearing pin is orthogonal on a perspective plane with the axis of slidiing pin.
In preferred scheme, the torsion spring being socketed on bearing pin is additionally provided with, one end of torsion spring is hooked in connecting rod, other end quilt
The gripper shoe of support base is spacing.
In another preferred scheme, the torsion spring being socketed on bearing pin is additionally provided with, one end of torsion spring hooks in connecting rod, leading
The upper end of set is provided with to valve plate outer wall direction the torsion spring positioning seat for extending, and the other end of torsion spring is spacing by torsion spring positioning seat.
In further preferred scheme, be additionally provided with the secondary spring for slidiing pin being made near valve seat in guide pin bushing, be additionally provided with
The stopping means for preventing slidiing pin from deviating from.
In preferred scheme, valve plate is fixedly connected with the connecting rod, connecting rod and bearing pin pivot joint, in the gripper shoe of support base
Two seat boards with slotted hole are provided with, bearing pin is arranged in seat board.
In preferred scheme, valve seat is fixedly connected with upper valve body by branch sleeve, and upper valve body passes through screw thread and lower valve body
It is fixedly connected；
Support base is fixedly connected with lower valve body by installation sleeve, and valve seat is provided with two runners, and the end face of runner is provided with annular
Sealing ring.
In preferred scheme, lower valve body is provided with expanding valve pocket, and support base and valve plate are installed in valve pocket.
A kind of plate check valve of positive sealing that the present invention is provided, by using bearing pin and support base rotatably and can phase
Connected mode to valve seat shift reciprocately, enables valve plate and valve seat along the axis shift of valve seat, so as under pressure,
Valve plate is capable of uniform force with valve seat sealing ring reliable contacts, realizes more preferably sealing effectiveness.Using the present invention, guaranteeing
On the premise of fluid media (medium) has larger overflow section, with good sealing effectiveness, additionally it is possible to prevent toxic gas from overflowing.
Description of the drawings
The invention will be further described with reference to the accompanying drawings and examples：
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the elevational schematic view of valve seat in the present invention.
Fig. 3 is valve seat and structural representation during valve plate sealing in the present invention.
Fig. 4 is valve seat and structural representation during valve plate unlatching in the present invention.
Fig. 5 is the close-up schematic view at A in Fig. 3.
Left views of the Fig. 6 for Fig. 4.
Fig. 7 is another optional structural representation in the present invention.
Fig. 8 is structural representation of the prior art.
Fig. 9 is close-up schematic view at B in Fig. 8.
In figure：Upper valve body 1, lower valve body 2, valve seat 3, first flow 31, second flow channel 32, branch sleeve 33, sealing ring 4,
Valve plate 5, bearing pin 6, slidiing pin 7, guide pin bushing 8, torsion spring positioning seat 81, support base 9, gripper shoe 91, installation sleeve 92, valve pocket 10,
Connecting rod 11, torsion spring 12, secondary spring 13.
Specific embodiment
As in Fig. 1 ~ 7, a kind of plate check valve of positive sealing, including valve seat 3, valve seat 3 are provided with multiple runners, preferably
For two runners, as shown in Figure 2, two runners are semicircle, are provided with cut-off between two runners, in first flow 31 and the
The periphery of two runners 32 is provided with the sealing ring 4 of annular, generally using rubber seal.In preferred scheme, valve seat 3 is by connection
Sleeve 33 is fixedly connected with upper valve body 1, and using threaded connection in this example, upper valve body 1 is fixedly connected with lower valve body 2 by screw thread,
Connected using tapered thread herein；Support base 9 is fixedly connected with lower valve body 2 by installation sleeve 92, is connected using screw thread in this example
Connect.
As shown in Fig. 1,3,4,6, support base 9 is arranged on the position relative with valve seat 3, the structure of support base 9 in this example
For installation sleeve 92 is fixedly connected with vertical gripper shoe 91, pipe structure of the installation sleeve 92 for annular, gripper shoe 91
Bottom is extend in installation sleeve 92, and is welded to connect with the inwall of installation sleeve 92, the upper width increase of gripper shoe 91, with
The inwall contact of valve pocket 10.
Multiple valve plates 5 for sealing is formed with runner are connected with bearing pin 6, and bearing pin 6 and support base 9 are with rotatably and can phase
The mode of 3 shift reciprocately of valve seat is connected.In preferred scheme, lower valve body 2 is provided with expanding valve pocket 10, support base 9 and valve plate 5
It is installed in valve pocket 10.Fig. 3, the arrow in 4 represent the flow direction of fluid media (medium).
By above-mentioned structure, when valve plate 5 forms sealing with valve seat 3, due to bearing pin 6 can 3 shift reciprocately of opposite valve seat,
As shown in Figure 3, under the pressure effect of lower flow medium, valve plate 5 is pressed on valve seat, and valve plate 5 is with sealing ring 4 equal
Under even pressure effect, it is fully contacted, realizes good sealing, during drilling construction toxic gas can be prevented reverse
Overflow.In preferred scheme, the alloy powder of plasma selective spray wear resistant corrosion resistant is adopted to improve which in valve inner
Abrasion and erosion resistant ability.
And as shown in Fig. 8,9, in the prior art as bearing pin is immovable, when the pressure of bottom it is excessive, by valve plate 5
When being pressed on valve seat, it is not horizontal distortion in sealing ring of the valve seat near the position of bearing pin, but inclination and distortion, contact conditions
For linear contact lay, sealing structure is unreliable, and adopts above-mentioned structure, overcomes the technical problem.
In preferred scheme such as Fig. 3 ~ 6, valve plate 5 is welded to connect with one end fixation of connecting rod 11, connecting rod 11 it is another
End is provided with a sleeve, sleeve and 6 pivot joint of bearing pin, and connecting rod 11 can be rotated by the center of circle of bearing pin 6, and bearing pin 6 and at least two slides
Bearing pin 7 is fixedly connected, and slidiing pin 7 is slidably connected with guide pin bushing 8, and preferred guide pin bushing 8 adopts the bottom of enclosed construction, guide pin bushing 8 to set
There is end cap, steam vent is preferably set on end cap, the structure is suitable to the more severe occasion of working environment；Can also be not provided with
Steam vent, using the gap aerofluxuss between slidiing pin 7 and guide pin bushing 8, to buffer the impulsive force of top flow media.Guide pin bushing 8 with
Support base 9 is fixedly connected.Thus structure, realizes 6 opposite valve seat of bearing pin, 3 shift reciprocately.
Preferred scheme as shown in fig. 1, the diameter parallel of slidiing pin 7 and valve seat 3.Thus structure, reduces lateral point
Power.Make the slip of slidiing pin 7 more smooth.
In preferred scheme, the axis of bearing pin 6 is orthogonal on a perspective plane with the axis of slidiing pin 7.Thus
Structure, realizes the rotation switching motion of valve plate 5.
The keying of generally valve plate 5 is controlled by the flow direction of fluid media (medium), and its original state is related to installation direction, when
When valve plate is located at lower section, it is normally opened, when valve plate is above, is normally closed.Normally open is used in this example.When being arrived
From the fluid media impingement of lower section, while overturning along bearing pin 6, bearing pin 6 is close to valve seat direction for valve plate, valve plate and valve seat it
Between reliably close.
In preferred scheme, the torsion spring 12 being socketed on bearing pin 6 is additionally provided with, one end of torsion spring 12 is hooked in connecting rod 11,
The other end is spacing by the gripper shoe 91 of support base 9.Thus structure, makes sealing state is defaulted as between valve seat and valve plate.Need spy
Do not mentionlet alone bright, the only drive valve plate 5 of torsion spring 12 of the mounting means is rotated.
In another preferred scheme such as Fig. 3 ~ 6, the torsion spring 12 being socketed on bearing pin 6 is additionally provided with, one end of torsion spring 12 hooks
In connecting rod 11, the torsion spring positioning seat 81 that extend is provided with to 5 outer wall direction of valve plate in the upper end of guide pin bushing 8, in torsion spring positioning seat 81
Locating slot is provided with, the other end of torsion spring 12 is spacing by the locating slot of torsion spring positioning seat 81.Torsion spring 12 makes valve plate 5 tend to valve seat
3 directions rotate, simultaneously because the structure of torsion spring positioning seat 81, bearing pin 6 and slidiing pin 7 are also by the spring to 3 direction of valve seat
Power, valve plate 5 can make a torsion spring 12 realize valve plate upset and to valve also to 3 displacement of valve seat, 12 mounting structure of torsion spring of this example
The driving that seat is moved.For different operating modes, torsion spring 12 might not make to form close between valve plate 5 and valve seat 3 by default
Envelope.The purpose of torsion spring 12 is set, at least enables torsion spring 12 offset the gravity of valve plate 5 to a certain extent, so that less
The impact of fluid media (medium), you can make sealing is formed between valve plate 5 and valve seat 3.
Preferred scheme is additionally provided with the stopping means for preventing slidiing pin 7 from deviating from, for example, is arranged on gripper shoe as in Fig. 4
91 limiting plate, or the limiting plate of 3 bottom of valve seat is arranged on, catch limits the shift position of slidiing pin 7, to avoid sliding
The shift position of dynamic bearing pin 7 is too high, and the upset to valve plate 5 causes to interfere.Along the axis direction of bearing pin 6, limiting plate and torsion
The position of spring 12 and connecting rod 11 is staggered, in order to avoid cause to interfere.
In further preferred scheme such as Fig. 3, be additionally provided with the secondary spring for slidiing pin 7 being made near valve seat 3 in guide pin bushing 8
13.Thus structure, the displacement of slidiing pin 7 are more reliable, and as the aforementioned, secondary spring 13 might not make slidiing pin 7 exist
I.e. to 3 displacement of valve seat under default conditions, at least secondary spring 13 can partly offset other that be fixedly connected with slidiing pin 7
The gravity of part, so that the displacement of slidiing pin 7 is more smoothly.
Make preferably, the stopping means for preventing slidiing pin 7 from deviating to be additionally provided with guide pin bushing 8, for example, is set on slidiing pin 7
There is chute, screw passes through the front end of guide pin bushing 8, screw to be located in the chute of slidiing pin 7, slidiing pin 7 limited by chute
Sliding stroke.
As in Fig. 7, valve plate 5 is fixedly connected another preferred scheme with connecting rod 11, connecting rod 11 and 6 pivot joint of bearing pin,
The gripper shoe 91 of support base 9 is provided with two seat boards with slotted hole, and bearing pin 6 is arranged in seat board.The structure is relatively simple, but
It is that the work surface of rotatable parts exposes outside, therefore is only applicable to the less severe occasion of working environment, this programme is suitable to will be only
Return the occasion that valve is reversely installed, i.e. the installation direction of check-valves be valve seat in lower section, and valve plate is up, and valve plate 5 leans on gravity pair
Valve seat realizes sealing, and the structure is relatively simple.The scheme of torsion spring and secondary spring also can be applied in combination with this programme.
During installation as shown in fig. 1, first valve seat 3 is threadably secured with upper valve body 1 and is connected, by support base 9 and lower valve
Body 2 is fixedly connected, and upper valve body 1 is threadably secured with lower valve body 2 and is connected, can be upper and lower as valve plate 5 is employed in the present invention
The structure of displacement, therefore, it is less demanding for assembly precision.Even if there is the abrasion of valve plate 5 and sealing ring 4, slidiing pin 7
Displacement, it is also possible to compensate part wears.When fluid media (medium) is entered in upper valve body 1 from top, passing through the first of valve seat 3
When runner 31 and second flow channel 32, valve plate 5 is promoted to rotate by the center of circle of bearing pin 6, first flow 31 and second flow channel 32 are opened, and are flowed
Body medium is entered in lower valve body 2.Rounding is provided near the side of bearing pin 6 at the top of valve plate 5.With avoid the rotation of valve plate 5 with
Formed between valve seat 3 and interfered, as shown in Figure 4.
As shown in Figure 3, by default, torsion spring 12 applies a thrust to torsion spring positioning seat 81 and connecting rod 11,
The thrust produces two effects, and one is to promote connecting rod 11 to rotate, while driving valve plate 5 to rotate, two are promoted on whole bearing pin 6
OK, i.e., slidiing pin 7 under the thrust of torsion spring 12 along 8 upward sliding of guide pin bushing so that valve plate 5 is contacted with sealing ring 4, first
Runner 31 and second flow channel 32 are closed.
When fluid media (medium) is flowed from below upward, pressure is produced to valve plate 5.Under pressure, slidiing pin 7 along
Guide pin bushing 8 is continued to slide up, and valve plate 5 is more closely contacted with sealing ring 4, further improves sealing effectiveness, therefore the present invention
Be applicable under the operating mode of air seal, for example prevent toxic gas from overflowing.Preferably, the secondary spring 13 of setting can
Further strengthen the effect of sealing.The structure of the present invention, is safeguarded also more convenient.
The above embodiments are only the preferred technical solution of the present invention, and are not construed as the restriction of the present invention, this Shen
Please in embodiment and the feature in embodiment in the case where not conflicting, can mutual combination in any.The protection model of the present invention
Enclose the equivalent side of technical characteristic in the technical scheme that should be recorded with claim, including the technical scheme of claim record
Case is protection domain.Equivalent i.e. within this range is improved, also within protection scope of the present invention.
Claims (10)
1. a kind of plate check valve of positive sealing, including valve seat（3）, valve seat（3）Multiple runners are provided with, with valve seat（3）Phase
To position be provided with support base（9）, it is characterized in that：For multiple valve plates of sealing are formed with runner（5）With bearing pin（6）Connection,
Bearing pin（6）With support base（9）With rotatable and can opposite valve seat（3）The mode of shift reciprocately connects.
2. a kind of plate check valve of positive sealing according to claim 1, is characterized in that：Valve plate（5）With connecting rod
（11）It is fixedly connected, connecting rod（11）With bearing pin（6）Pivot joint, bearing pin（6）With at least two slidiing pins（7）It is fixedly connected, it is sliding
Dynamic bearing pin（7）With guide pin bushing（8）It is slidably connected, guide pin bushing（8）With support base（9）It is fixedly connected.
3. a kind of plate check valve of positive sealing according to claim 2, is characterized in that：Slidiing pin（7）With valve seat
（3）Diameter parallel.
4. a kind of plate check valve of positive sealing according to claim 2, is characterized in that：Bearing pin（6）Axis and cunning
Dynamic bearing pin（7）Axis it is orthogonal on a perspective plane.
5. a kind of plate check valve of positive sealing according to claim 2, is characterized in that：It is additionally provided with and is socketed in bearing pin
（6）On torsion spring（12）, torsion spring（12）One end hook in connecting rod（11）On, the other end is by support base（9）Gripper shoe（91）
It is spacing.
6. a kind of plate check valve of positive sealing according to claim 2, is characterized in that：It is additionally provided with and is socketed in bearing pin
（6）On torsion spring（12）, torsion spring（12）One end hook in connecting rod（11）On, in guide pin bushing（8）Upper end be provided with to valve plate（5）Outward
The torsion spring positioning seat that wall direction extends（81）, torsion spring（12）The other end by torsion spring positioning seat（81）It is spacing.
7. a kind of plate check valve of the positive sealing according to claim 5 or 6, is characterized in that：In guide pin bushing（8）Inside also set
Make slidiing pin（7）Near valve seat（3）Secondary spring（13）, being additionally provided with prevents slidiing pin（7）The stopping means of abjection.
8. a kind of plate check valve of positive sealing according to claim 1, is characterized in that：Valve plate（5）With connecting rod
（11）It is fixedly connected, connecting rod（11）With bearing pin（6）Pivot joint, in support base（9）Gripper shoe（91）Two are provided with oval
The seat board in hole, bearing pin（6）In seat board.
9. a kind of plate check valve of positive sealing according to claim 1, is characterized in that：Valve seat（3）By adapter sleeve
Cylinder（33）With upper valve body（1）It is fixedly connected, upper valve body（1）By screw thread and lower valve body（2）It is fixedly connected；
Support base（9）By installation sleeve（92）With lower valve body（2）It is fixedly connected, valve seat（3）Two runners are provided with, runner
End face is provided with the sealing ring of annular（4）.
10. a kind of plate check valve of positive sealing according to claim 1, is characterized in that：Lower valve body（2）It is provided with expanding
Valve pocket（10）, support base（9）And valve plate（5）It is installed in valve pocket（10）It is interior.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035806.8A CN106594331B (en) | 2017-01-18 | 2017-01-18 | The plate check valve reliably sealed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710035806.8A CN106594331B (en) | 2017-01-18 | 2017-01-18 | The plate check valve reliably sealed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106594331A true CN106594331A (en) | 2017-04-26 |
| CN106594331B CN106594331B (en) | 2018-01-23 |
Family
ID=58585874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710035806.8A Active CN106594331B (en) | 2017-01-18 | 2017-01-18 | The plate check valve reliably sealed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106594331B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869813A (en) * | 2018-08-29 | 2018-11-23 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of check-valves |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1330749C (en) * | 1988-09-21 | 1994-07-19 | Gary Allan Hocking | Check valves |
| CN2886253Y (en) * | 2006-08-09 | 2007-04-04 | 盐城九龙阀门制造有限公司 | High-pressure butterfly check valve without outward leakage |
| CN202140632U (en) * | 2011-07-01 | 2012-02-08 | 苏州纽威阀门股份有限公司 | Pair-clamp and double-flap check valve |
| CN202927152U (en) * | 2012-10-22 | 2013-05-08 | 安徽荣达阀门有限公司 | Double-clip type disc type check valve with good sealing performance |
| CN206398135U (en) * | 2017-01-18 | 2017-08-11 | 长江大学 | Reliable sealedly plate check valve |
-
2017
- 2017-01-18 CN CN201710035806.8A patent/CN106594331B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1330749C (en) * | 1988-09-21 | 1994-07-19 | Gary Allan Hocking | Check valves |
| CN2886253Y (en) * | 2006-08-09 | 2007-04-04 | 盐城九龙阀门制造有限公司 | High-pressure butterfly check valve without outward leakage |
| CN202140632U (en) * | 2011-07-01 | 2012-02-08 | 苏州纽威阀门股份有限公司 | Pair-clamp and double-flap check valve |
| CN202927152U (en) * | 2012-10-22 | 2013-05-08 | 安徽荣达阀门有限公司 | Double-clip type disc type check valve with good sealing performance |
| CN206398135U (en) * | 2017-01-18 | 2017-08-11 | 长江大学 | Reliable sealedly plate check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869813A (en) * | 2018-08-29 | 2018-11-23 | 普雷沃流体控制科技（芜湖）有限公司 | A kind of check-valves |
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| Publication number | Publication date |
|---|---|
| CN106594331B (en) | 2018-01-23 |
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