CN109307089A - High frequency opens check-valves fastly - Google Patents
High frequency opens check-valves fastly Download PDFInfo
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- CN109307089A CN109307089A CN201811228562.6A CN201811228562A CN109307089A CN 109307089 A CN109307089 A CN 109307089A CN 201811228562 A CN201811228562 A CN 201811228562A CN 109307089 A CN109307089 A CN 109307089A
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- Prior art keywords
- valve seat
- spool
- valves
- valve
- fastly
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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
- F16K15/06—Check valves with guided rigid valve members with guided stems
- F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The invention belongs to valve fields, check-valves is opened fastly more particularly to a kind of high frequency, the check-valves includes valve body, the valve seat being fixed on valve body, the spool moved up and down on valve seat, the valve body is connected with valve base sealing, and the middle part setting of the valve seat medial surface is fluted, and the guide sleeve of annular is placed in groove, guide sleeve and valve seat are floating connection, and spool moves in guide sleeve and in valve seat.The advantages of invention, is: placing guide sleeve in the present invention in valve seat, guide sleeve can be movable in groove, when spool moves in valve seat, can reduce the influence of eccentric wear, switchs so as to avoid spool card resistance not in place.Due to guide sleeve can the fine motion in groove, reliably sealed even if valve core sealed cover axis and guide part axis runout are also ensured between spool and valve seat.
Description
Technical field
The present invention relates to valve field, especially high frequencies to open check-valves fastly.
Background technique
The effect of the such valve of check-valves is only to allow medium forward flow, prevents opposite direction flowing.Usually only
Returning valve is automatic work, and when forward flow, under Fluid pressure effect, valve is opened；When fluid opposite direction flowing, by fluid
The self weight of pressure and spool, valve is closed, to cut off flowing.
Check-valves primary structure form has swing type, lift, axial-flow type etc., and technical characteristics are respectively as follows: 1, rotation and open
Formula check-valves includes linkage and flap, and flap one end is hinged by around hinge mechanism, and the other end freely leans against inclined
On valve base surface.2, lift check valve, other than flap can freely be gone up and down, rest part is such as shut-off valve, fluid
Pressure lifts flap from sealing surface of seat, and medium back flow causes flap to fall back on valve seat, and cuts off flowing.3, axial-flow type
Check-valves, flap opens and closes the direction of motion and conduit axis is coaxial, and unique axis stream shuttle-type structure is small with flow resistance, discharge coefficient is big
The advantages that.
It when check-valves, which is applied to positive displacement pump, to be imported and exported, then requires it that should meet the working condition requirement that high frequency is opened fastly, and goes up and down
Formula check-valves is the common form of such valve.But in production practice, often there is spool card resistance, guiding mill in such check-valves
The problems such as damage is serious, switch is not in place is badly in need of solving.
Summary of the invention
In order to overcome the shortcomings of the prior art described above, for this purpose, the present invention provides a kind of high frequency opens check-valves fastly.
To achieve the above object, the invention adopts the following technical scheme:
High frequency opens check-valves, including valve body fastly, the valve seat being fixed on valve body, the spool moved up and down on valve seat, institute
Valve body to be stated to connect with valve base sealing, the middle part setting of the valve seat medial surface is fluted, the guide sleeve of annular is placed in groove,
Spool moves in guide sleeve and in valve seat.
Valve seat is further limited, is provided with elastic ring between the groove and the lateral wall of guide sleeve, under groove
End is provided with the retaining ring that restricted guidance set falls off out of groove.
Restriction to spool, the spool include the interconnecting piece set gradually from top to bottom, with the matched sealing of valve seat,
With the matched guide part of guide sleeve medial surface, one end of the interconnecting piece and spring is connected, the other end and valve body of the spring
Connection.
Spool is further limited, the guide part is Openworks shape, and no less than 3 are provided on the side wall of guide part
It is a to cross liquid window.
Spool is further limited, the guide part includes several gussets, and all gussets are arcwall face, arcwall face
Axis on to valve core length direction is equal, and the upper end of several gussets and the bottom of sealing connect, and lower end passes through
Reinforcing member support.
Spool is further limited, the reinforcing member is the radial structure that middle part radiates around, radial structure
Including the radiation equal with gusset quantity, the end of every radiation is fixedly connected with corresponding gusset, radial structure
Center is located on the axis in valve core length direction.
Spool is further limited, the reinforcing member is cyclic structure, and the lower end of several gussets is fixed on ring-type
In structure.
Restriction to spool and valve seat, the sealing is column structure, and column structure lower end surface is valve core sealed cover,
Valve core sealed cover is cone cell, and the conicoid on the inside of the upper end of the valve seat is matched with valve core sealed cover.
Spool and valve seat are further limited, the seal f ace width and surface hardness of the spool are all larger than the close of valve seat
Cover width and surface hardness.
Restriction to gag lever post and spring, the gag lever post that limitation spool is additionally provided on valve body and detaches valve seat, institute
It states gag lever post one end to be fixed on valve body, the other end protrudes into spring, and gag lever post and spring are coaxially disposed, and takes out upwards out of valve seat
When from spool to maximum position, the lower end of gag lever post resists the interconnecting piece of spool, and spool bottom is concordant with the bottom of valve seat.
The present invention has the advantages that
(1) floating guiding set is placed in the present invention in valve seat, such guide sleeve can be movable in groove, when spool is in valve
In seat when movement, the influence of eccentric wear can be reduced, is switched so as to avoid spool card resistance not in place.Since guide sleeve can be recessed
Fine motion in slot reliably seals even if seal spool portion axis and guide part axis runout are also ensured between spool and valve seat.
(2) certain limit is realized between groove and guide sleeve by elastic ring, retaining ring prevents spool from coming in guide sleeve
When backhauling dynamic, guide sleeve falls off out of valve seat groove.
It (3) is Openworks shape in the middle part of spool, side wall setting no less than 3 are crossed liquid window, the weight of spool can be mitigated in this way,
Be conducive to be adapted to the harsh operating condition that high frequency is opened fastly.When having served as liquid number of windows not less than 3, the quantity of such gusset is quite a few
In 3 pieces, the stability that spool moves in guide sleeve may insure in this way.
(4) stability of valve core structure can be improved in the setting of reinforcing member in the present invention.
(5) central axes when gag lever post can both prevent spring from extending and compressing are deviateed, and also play limitation spool
The effect of move distance, specifically, spool can be prevented to be detached from valve seat when by biggish medium thrust.
(6) valve seat and guide sleeve are separate structures, and valve seat selects softer material, convenient for forming difference of hardness with spool,
And under high-frequency percussion operating condition, be conducive to the performance for improving antifatigue impact；And in the biggish operating condition of temperature change, different materials
The coefficient of expansion of material is different, separation floating structure design, can be to avoid because of damage parts caused by difference variation.
Detailed description of the invention
Fig. 1 is structural schematic diagram when through type high frequency opens check-valves standard-sized sheet fastly.
Fig. 2 is that through type high frequency opens structural schematic diagram when check-valves closes entirely fastly.
Fig. 3 is structural schematic diagram when angie type high frequency opens check-valves standard-sized sheet fastly.
Fig. 4 is that angie type high frequency opens structural schematic diagram when check-valves closes entirely fastly.
The structural schematic diagram of Fig. 5 is reinforcing member when being radial structure spool.
Fig. 6 is that reinforcing member is cyclic structure and the structural schematic diagram for crossing spool when liquid window is straight window-like.
Fig. 7 is that reinforcing member is cyclic structure and the structural schematic diagram for crossing spool when liquid window is oblique window-like.
The meaning of label symbol is as follows in figure:
1- valve body 11- lower valve body 12- upper valve body
21- valve seat 22- retaining ring 23- elastic ring 24- guide sleeve 25- gasket seal
3- spool 31- interconnecting piece 32- sealing 321- valve core sealed cover 33- guide part
331- crosses liquid window 332- gusset 333- radiation 334- cyclic structure
4- spring 5- gag lever post
Specific embodiment
Structure of the invention and the course of work are illustrated in conjunction with attached drawing.
As shown in Figs 1-4, high frequency opens check-valves, including valve body 1 fastly, is fixed on valve seat 21 on valve body 1, on valve seat 21
The spool 3 moved up and down, valve body 1 include upper valve body 12 and lower valve body 11, and valve seat 21 is arranged in 11 shape of upper valve body 12 and lower valve body
At valve chamber in, lower valve body 11 and valve seat 21 are tightly connected.The limit that restricted spool 3 detaches valve seat 21 is set on upper valve body 12
Bar 5 is cased with spring 4 on gag lever post 5.Spring 4 is cylindrically coiled spring 4, and 4 one end of spring can be set in the lower end of upper valve body 12
On face, it can also be positioned close on the gag lever post 5 at the lower end surface of upper valve body 12, the other end is fixed on spool 3.In the reality
It applies in example, valve seat 21 is threadably secured with lower valve body 11, and bearing is provided with gasket seal 25.In addition, can also lead to
It crosses valve cage valve seat 21 is pressed in lower valve body 11.Structure, spool 3, spring 4, gag lever post 5 at valve body 1, valve seat 21 are done in detail below
Thin description.
Valve body 1
1.1, the first scheme of valve body 1
As shown in Figs. 1-2, check-valves can be used in Through-conduit check valve, and optional Globe type or streamlined or forging are beaten
Pass.In this scenario, spring 4 and gag lever post 5 are arranged on the lower end surface of upper valve body 12, and valve seat 21 is fixed on lower valve body 11
It is interior.
1.2, the second scheme of valve body 1
As shown in Figure 3-4, check-valves can be also used in angle type check valve.Upper valve body 12 and lower valve body 11 are connected by bolt
Composition 1 structure of angie type valve body is connect, valve seat 21 is between upper valve body 12 and lower valve body 11.
1.3, the third scheme of valve body 1
The valve body structure of check-valves can also be directly integrated in the pump housing.
Structure at valve seat 21
The middle part setting of 21 medial surface of valve seat is fluted, the guide sleeve 24 of annular is placed in groove, spool 3 is in guide sleeve
It is moved in 24 and in valve seat 21.Guide sleeve 24 is lining in valve seat 21, and guide sleeve 24 and valve seat 21 are wide arc gap cooperation.Groove with lead
It is provided with elastic ring 23 between the lateral wall of set 24, in this embodiment, elastic ring 23 is O-ring, and the lower end of groove is set
It is equipped with the retaining ring 22 that restricted guidance set 24 falls off out of groove.Wherein elastic ring 23 can also be helical spring circle.Guide sleeve
24 materials are the stainless steel of high rigidity, or quenching or note tungsten carbide, or use entity tungsten carbide, ceramic material.Specifically, circle
Cylindrical spring circle is a kind of cylindrical helical spring of minor diameter compared with spring 4, and a spring can be formed with headtotail
Circle.
Spool 3
The spool 3 includes the interconnecting piece 31 set gradually from top to bottom and the matched sealing 32 of valve seat 21 and guiding
The matched guide part 33 of 24 medial surfaces is covered, the interconnecting piece 31 is connect with spring 4.
The sealing 32 is column structure, and column structure lower end surface is valve core sealed cover 321, valve core sealed cover 321
For cone cell, the conicoid face on the inside of the upper end of the valve seat 21 is matched with valve core sealed cover 321.Valve core sealed cover 321 and valve
Seat 21 upper ends shape setting the width that valve seat 21 is bonded with spool 3 can be improved, in more detail, on spool 3 with valve seat 21
The width and hardness in the face of contact are all larger than the width and hardness in the face contacted on valve seat 21 with spool 3, so that it is guaranteed that high frequency is fast
Long term seal effect under the conditions of speed.
As illustrated in figs. 5-7, the guide part 33 of spool 3 is Openworks shape, and 3 mistakes are provided on the side wall of guide part 33
Liquid window 331.The guide part 33 includes several gussets 332, in this kind of scheme, by taking 3 gussets 332 as an example.All gussets
332 be arcwall face, and the axis on arcwall face to 3 length direction of spool is equal, the upper end of 3 gussets 332 and sealing
32 bottom connection, lower end is supported by reinforcing member.
Reinforcing member can have following several schemes in guide part 33
2.1, the first scheme of guide part 33
As shown in figure 5, the reinforcing member is the radial structure that middle part radiates around, radial structure includes 3
Radiation 333, the end of every radiation 333 are fixedly connected with corresponding gusset 332, and the center of radial structure is located at spool
On the axis of 3 length directions.Radial structure and gusset 332 are structure as a whole, and the whole strong of guide part 33 can be improved in this way
Degree.
2.2, the second scheme of guide part 33
As shown in fig. 6-7, the reinforcing member is that the lower end of 334,3 gussets 332 of cyclic structure is fixed on cyclic structure
On 334.Reinforcing member can be circular cylinder with gusset 332, and guide part 33 on the annular surface of circular cylinder by cutting through liquid
Window 331 obtains.
In both the above scheme, wherein different shapes can be had by crossing liquid window 331, herein with the second of guide part 33
For kind scheme, as shown in fig. 6, crossing liquid window 331 is straight window-like, as shown in fig. 7, crossing liquid window 331 is oblique window-like.It can be with
For round rectangle or other polymorphic structures.
Spring 4 and gag lever post 5
Described 5 one end of gag lever post is threadedly secured on 12 lower end surface of upper valve body, and the other end protrudes into spring 4, limit
Bar 5 and spring 4 are coaxially disposed, and when detaching spool 3 upwards out of valve seat 21 to maximum position, the lower end of gag lever post 5 resists valve
The interconnecting piece 31 of core 3,3 bottom of spool are concordant with the bottom of valve seat 21.
The course of work is as follows:
When medium forward flow, medium is flowed into from 1 entrance of valve body, and under the action of medium power, dragging spool 3 is transported upwards
It is dynamic, compressed spring 4, until the interconnecting piece 31 of spool 3 leans against on gag lever post 5, at this point, check-valves standard-sized sheet.When medium reverse flow
When, medium is flowed into from the outlet of valve body 1, under the collective effect that medium power, spring 4, spool are self-possessed, spool 3 is pushed to transport downwards
Dynamic, until valve core sealed cover 321 is close to the sealing surface on valve seat 21, at this point, check-valves closes entirely, media flow is truncated.
The scheme of each component matches after arbitrarily selecting, and forms a variety of different structures, belongs to presently disclosed whole
Body scheme.
The above is only the preferred embodiments of the invention, are not intended to limit the invention creation, all in the present invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the invention within the spirit and principle of creation
Within the scope of shield.
Claims (10)
1. high frequency opens check-valves, including valve body (1) fastly, the valve seat (21) that is fixed on valve body (1), on valve seat (21) on move down
Dynamic spool (3), the valve body (1) and valve seat (21) are tightly connected, which is characterized in that the middle part of valve seat (21) medial surface
It is arranged fluted, the guide sleeve (24) of annular is placed in groove, spool (3) moves in the guide sleeve (24) and in valve seat (21)
It is dynamic.
2. high frequency according to claim 1 opens check-valves fastly, which is characterized in that the outside of the groove and guide sleeve (24)
It is provided between wall elastic ring (23), the lower end of groove is provided with the retaining ring that restricted guidance set (24) falls off out of groove.
3. high frequency according to claim 1 opens check-valves fastly, which is characterized in that the spool (3) include from top to bottom according to
The interconnecting piece (31) of secondary setting and valve seat (21) matched sealing (32) and the matched guide part of guide sleeve (24) medial surface
(33), the interconnecting piece (31) connect with one end of spring (4), and the other end of the spring (4) is connect with valve body (1).
4. high frequency according to claim 3 opens check-valves fastly, which is characterized in that the guide part (33) is Openworks shape, and
And it is provided with no less than 3 on the side wall of guide part (33) and crosses liquid window (331).
5. high frequency according to claim 4 opens check-valves fastly, which is characterized in that the guide part (33) includes several muscle
Plate (332), all gussets (332) are arcwall face, and the axis on arcwall face to spool (3) length direction is equal, Ruo Gangen
The upper end of gusset (332) is connect with the bottom of sealing (32), and lower end is supported by reinforcing member.
6. high frequency according to claim 5 opens check-valves fastly, which is characterized in that the reinforcing member is that middle part radiates around
Radial structure, radial structure includes the radiation equal with gusset (332) quantity (333), every radiation (333)
End is fixedly connected with corresponding gusset (332), and the center of radial structure is located on the axis of spool (3) length direction.
7. high frequency according to claim 5 opens check-valves fastly, which is characterized in that the reinforcing member is cyclic structure (334),
The lower end of several gussets (332) is fixed on cyclic structure (334).
8. high frequency according to claim 3 opens check-valves fastly, which is characterized in that the sealing (32) is column structure,
And column structure lower end surface is valve core sealed cover (321), valve core sealed cover (321) is cone cell, the upper end of the valve seat (21)
The cone cell sealing surface of inside is matched with valve core sealed cover (321).
9. high frequency according to claim 1 opens check-valves fastly, which is characterized in that the seal f ace width of the spool (3) and
Surface hardness is all larger than the seal f ace width and surface hardness of valve seat (21).
10. high frequency according to claim 3 opens check-valves fastly, which is characterized in that be additionally provided with limitation on the valve body (1)
Spool (3) detaches the gag lever post (5) of valve seat (21), and described gag lever post (5) one end is fixed on valve body (1), and the other end protrudes into bullet
In spring (4), gag lever post (5) and spring (4) are coaxially disposed, and when detaching spool (3) upwards out of valve seat (21) to maximum position, are limited
The lower end of position bar (5) resists the interconnecting piece (31) of spool (3), and spool (3) bottom is concordant with the bottom of valve seat (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811228562.6A CN109307089B (en) | 2018-10-22 | 2018-10-22 | High-frequency quick-opening check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811228562.6A CN109307089B (en) | 2018-10-22 | 2018-10-22 | High-frequency quick-opening check valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109307089A true CN109307089A (en) | 2019-02-05 |
| CN109307089B CN109307089B (en) | 2020-10-13 |
Family
ID=65225366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811228562.6A Active CN109307089B (en) | 2018-10-22 | 2018-10-22 | High-frequency quick-opening check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109307089B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB483130A (en) * | 1937-09-13 | 1938-04-12 | James Edward Grainger | Improvements in or relating to valves for steam and other fluids |
| GB705063A (en) * | 1950-11-22 | 1954-03-10 | High Pressure Components Ltd | Improvements in non-return valves |
| CN2192780Y (en) * | 1994-06-13 | 1995-03-22 | 北京海淀普惠机电技术开发公司 | Extension tube check valve |
| CN201715046U (en) * | 2010-04-30 | 2011-01-19 | 营口流体设备制造(集团)有限公司 | High-pressure water scale removal balance check valve |
| CN201764035U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Low-pressure drop check valve |
| CN202001644U (en) * | 2011-01-17 | 2011-10-05 | 浙江宇特阀门制造有限公司 | Leak-tight corrugated piston valve |
| CN102588620A (en) * | 2012-03-19 | 2012-07-18 | 宣伯民 | Stop valve with valve seat provided with protective sleeve |
| CN203686262U (en) * | 2014-01-10 | 2014-07-02 | 山西潞安集团余吾煤业有限责任公司 | Mining submersible pump outlet check valve |
| CN204201124U (en) * | 2014-09-18 | 2015-03-11 | 浙江亿科阀门有限公司 | Pneumatic control valve door |
| CN205618745U (en) * | 2016-05-17 | 2016-10-05 | 厦门瑞尔特卫浴科技股份有限公司 | Prevent flowing backwards valve gear and have its solenoid valve |
| CN205824216U (en) * | 2016-06-30 | 2016-12-21 | 纽威石油设备（苏州）有限公司 | Plunger type drilling well choke valve |
-
2018
- 2018-10-22 CN CN201811228562.6A patent/CN109307089B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB483130A (en) * | 1937-09-13 | 1938-04-12 | James Edward Grainger | Improvements in or relating to valves for steam and other fluids |
| GB705063A (en) * | 1950-11-22 | 1954-03-10 | High Pressure Components Ltd | Improvements in non-return valves |
| CN2192780Y (en) * | 1994-06-13 | 1995-03-22 | 北京海淀普惠机电技术开发公司 | Extension tube check valve |
| CN201715046U (en) * | 2010-04-30 | 2011-01-19 | 营口流体设备制造(集团)有限公司 | High-pressure water scale removal balance check valve |
| CN201764035U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Low-pressure drop check valve |
| CN202001644U (en) * | 2011-01-17 | 2011-10-05 | 浙江宇特阀门制造有限公司 | Leak-tight corrugated piston valve |
| CN102588620A (en) * | 2012-03-19 | 2012-07-18 | 宣伯民 | Stop valve with valve seat provided with protective sleeve |
| CN203686262U (en) * | 2014-01-10 | 2014-07-02 | 山西潞安集团余吾煤业有限责任公司 | Mining submersible pump outlet check valve |
| CN204201124U (en) * | 2014-09-18 | 2015-03-11 | 浙江亿科阀门有限公司 | Pneumatic control valve door |
| CN205618745U (en) * | 2016-05-17 | 2016-10-05 | 厦门瑞尔特卫浴科技股份有限公司 | Prevent flowing backwards valve gear and have its solenoid valve |
| CN205824216U (en) * | 2016-06-30 | 2016-12-21 | 纽威石油设备（苏州）有限公司 | Plunger type drilling well choke valve |
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| Publication number | Publication date |
|---|---|
| CN109307089B (en) | 2020-10-13 |
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