CN110388483A - A kind of check valve - Google Patents
A kind of check valve Download PDFInfo
- Publication number
- CN110388483A CN110388483A CN201810366151.7A CN201810366151A CN110388483A CN 110388483 A CN110388483 A CN 110388483A CN 201810366151 A CN201810366151 A CN 201810366151A CN 110388483 A CN110388483 A CN 110388483A
- Authority
- CN
- China
- Prior art keywords
- boss
- check valve
- lower case
- upper housing
- internal pressure
- 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
- 238000003466 welding Methods 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 14
- 206010058109 Hangnail Diseases 0.000 claims description 11
- 239000013013 elastic material Substances 0.000 claims description 3
- 239000000446 fuel Substances 0.000 abstract description 5
- 238000007664 blowing Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/0011—Breather valves
-
- 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
-
- 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
- F16K15/14—Check valves with flexible valve members
- F16K15/141—Check valves with flexible valve members the closure elements not being fixed to the valve body
-
- 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
- F16K15/14—Check valves with flexible valve members
- F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre
-
- 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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0209—Check valves or pivoted valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Check Valves (AREA)
Abstract
The present invention provides a kind of check valves, comprising: upper housing, lower case, boss and valve block；Wherein, the upper housing lower end is connected by way of rotating welding with the upper end of the lower case, to form valve chamber between the upper housing and the lower case；The boss is integrally concentrically disposed inside the upper housing ground, is provided with several ventholes for gas to pass through；The valve block is set in protrusion under the boss and matches with the boss, to open the venthole when the upper housing internal pressure is greater than the lower case internal pressure.Check valve in the present invention, the fuel mixture body being effectively guaranteed in crankshaft ventilated box can smoothly enter automobile engine, in-engine gas is simultaneously effective prevented to enter crankshaft ventilated box, to avoid the gas-blowing phenomenon of engine, safety is improved while increasing engine fuel efficiency.
Description
Technical field
The present invention relates to automotive ventilation control system technical fields, in particular to a kind of check valve.
Background technique
Currently, the ventilated control system on automobile, needs to install check valve between engine and crankshaft ventilated box, so that bent
Fuel-steam in axis ventilated box can enter in engine under certain pressure difference to burn, and fuel oil is made to obtain abundant benefit
With, while preventing in in-engine gas play to crankshaft ventilated box.However, existing check valve is led during use
Deposit problem both ways: first is that the difficulty connected between check valve and engine and crankshaft ventilated box is larger and stability compared with
It is low；The other is the leakproofness in use of check valve valve body is poor, the interference vulnerable to extraneous factor.
Summary of the invention
In consideration of it, the invention proposes a kind of check valves, it is intended to which it is poor to solve existing check valve leakproofness, and the course of work
In vulnerable to external interference the problem of.
The invention proposes a kind of check valves, comprising: upper housing, lower case, boss and valve block；Wherein,
The upper housing lower end is connected by way of rotating welding with the upper end of the lower case, in the upper casing
Valve chamber is formed between body and the lower case；
The boss is integrally concentrically disposed inside the upper housing ground, is provided with several ventilations for gas to pass through
Hole；
The valve block is set in protrusion under the boss and matches with the boss, in the upper housing internal pressure
The venthole is opened when greater than the lower case internal pressure, is less than or equal to the lower casing in the upper housing internal pressure
The venthole is closed when body internal pressure.
Further, in above-mentioned check valve, the valve block is circular elastic valve plate, has a diameter larger than or is equal to described convex
The diameter of platform, to guarantee that it can cover all ventholes on the boss.
Further, in above-mentioned check valve, the thickness of the valve block is inwardly gradually increased from outer rim, to increase the valve block
Intensity prevents its excessive deformation during the work time.
Further, in above-mentioned check valve, support portion is additionally provided in the upper housing, the support portion is in the upper casing
Body internal pressure supports the valve block outer rim when being less than or equal to the lower case internal pressure, to enhance sealing function.
Further, in above-mentioned check valve, the support portion is arranged along the upper enclosure inner wall complete cycle, when guaranteeing work
Sufficiently cooperate with the outer rim of the valve block.
Further, in above-mentioned check valve, it is additionally provided with limited post in the lower case, be used to support boss and limits institute
Valve block is stated in the movement position of the boss lower end.
Further, in above-mentioned check valve, the limited post be barrel-like structure, the exterior sidewall portions of the barrel-like structure with
To connection inside the lower case, upper end is socketed in the boss lower end.
Further, in above-mentioned check valve, hangnail and sealing ring are additionally provided in the lower case；Wherein,
The hangnail is arranged on the lower end outer wall of the lower case, for reinforcing between the check valve and engine
Connection function；
The top of the hangnail is arranged in the sealing ring, close for guaranteeing to connect between the check valve and engine
Closing property.
Further, in above-mentioned check valve, the sealing ring is made by elastic material.
Further, in above-mentioned check valve, the symmetrical or random setting of the venthole is on the boss.
Compared with prior art, the beneficial effects of the present invention are check valves provided by the invention, by connecting
Between between automobile engine and crankshaft ventilated box, the fuel mixture body being effectively guaranteed in crankshaft ventilated box can be smoothly
Into automobile engine, in-engine gas is simultaneously effective prevented to enter crankshaft ventilated box, to avoid engine
Gas-blowing phenomenon improves safety while increasing engine fuel efficiency.
Especially, check valve of the invention, by being wholely set the boss with venthole in upper housing and being set in
Valve block on boss matches, and has effectively achieved the control to gas relative motion in upper-lower casing, ensure that crankshaft is divulged information
Fuel-steam in case can enter in engine under certain pressure difference to burn, and fuel oil is made to be fully used, and
It prevents in in-engine gas play to crankshaft ventilated box.
Further, check valve of the invention is less than by the way that support portion is arranged in upper housing in upper housing internal pressure
Or be used to support valve block outer rim when equal to the lower case internal pressure, further enhance the sealing function of valve block.
Further, check valve of the invention for support rim and is limited by being additionally provided with limited post in lower case
Valve block in the movement position of the boss lower end, further ensure check valve during the work time the stability of boss setting and
The relativity of valve plate movement.
Further, check valve of the invention, it is on the one hand greatly convenient by the way that hangnail and sealing ring is arranged in lower case
The connection of check valve and automobile engine, on the other hand effectively ensure connected between check valve and automobile engine it is close
Closing property.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of check valve provided in an embodiment of the present invention.
Specific embodiment
The preferred embodiment of the present invention described with reference to the accompanying drawings.It will be apparent to a skilled person that this
A little embodiments are used only for explaining technical principle of the invention, it is not intended that limit the scope of the invention.
It should be noted that in the description of the present invention, the instruction such as term " on ", "lower", "left", "right", "inner", "outside"
Direction or the term of positional relationship be direction based on the figure or positional relationship, this is intended merely to facilitate description, and
It is not that indication or suggestion described device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
In addition it is also necessary to explanation, in the description of the present invention unless specifically defined or limited otherwise, term " peace
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.To those skilled in the art, it can understand that above-mentioned term exists as the case may be
Concrete meaning in the present invention.
As shown in fig.1, the structural schematic diagram of the check valve of its embodiment of the present invention, comprising: upper housing 1, lower case 2,
Boss 3 and valve block 4；Wherein, 1 lower end of upper housing is connected with the upper end of lower case 2, and between upper housing 1 and lower case 2
Form closed valve chamber；The inside of upper housing 1 is arranged in boss 3, as the baffle part of setting valve block 4, in order to guarantee gas
Body can be provided with several ventholes for gas to pass through 31 on boss 3 inside upper housing 1 to 2 internal motion of lower case；Valve block
4 are arranged in the lower protrusion of boss 3, and can match with boss 3, to guarantee to be greater than lower case 2 in 1 internal pressure of upper housing
Venthole 31 is opened when internal pressure, closes venthole when 1 internal pressure of upper housing is less than or equal to 2 internal pressure of lower case
31。
Specifically, upper housing 1 is an oblique funnel structure, the pars infundibularis of lower end can be connected with lower case 2, connect
The mode of connecing can be any connection type such as to be threadedly coupled, be bolted or weld, as long as can guarantee in upper housing 1 and lower casing
Closed valve chamber is formed between body 2.Meanwhile boss 3 is also set up inside upper housing 1, set-up mode can be to appoint
Meaning set-up mode, such as be wholely set, weld, be bolted, several ventholes are offered on boss 3 at random or symmetrically
31, with guarantee setting that valve block 4 can be stable between upper housing 1 and lower case 2, and can according to its two sides pressure change into
The control of row gas flow.For further, valve when guaranteeing 1 internal pressure of upper housing less than or equal to 2 internal pressure of lower case
Support portion 11 can also be arranged to the sealing effect of venthole 31 in piece 4 in upper housing 1.
In the present embodiment, upper housing 1 is an oblique funnel structure, lower end phase by way of rotating welding with lower case 2
Connection, inside are integrally concentrically disposed with the boss 3 with venthole 31, and inner sidewall complete cycle is arranged support portion 11, on the one hand has
It ensure that the fastness connected between upper housing 1 and lower case 2 and airtightness to effect, on the other hand ensure that valve block 4 can it
Effective control of the variation of two sides pressure to gas flow, furthermore further ensures the sealing effect of valve block 4.
Specifically, lower case 2 is a funnel structure, the upper end pars infundibularis is connected with the pars infundibularis of 1 lower end of upper housing,
And it is internally provided with limited post 21, the exterior sidewall portions of limited post 21 are connected with the inside of lower case 2, and upper end is socketed in convex
On the one hand the lower end of platform 3 is used to support rim 3, be on the other hand used to limit valve block 4 in the movement position of 3 lower end of boss.Together
When, a number of hangnail 22 is additionally provided on the lateral wall of 2 lower end of lower case, to reinforce the company between check valve and engine
Connect effect.This is, in order to further ensure the airtightness connected between check valve and engine, to also set up in the top of hangnail 22
There is the sealing ring 23 being made by elastic material.
In the present embodiment, lower case 2 is a funnel structure, is internally provided with the limited post 21 of tubbiness, lower outside wall
There are two hangnails 22 for upper setting, and the top of hangnail 22 is provided with a sealing ring 23, on the one hand ensure that check valve worked
The relativity of boss is arranged in journey stability and valve plate movement；On the other hand check valve and automobile engine are greatly facilitated
Connection, and effectively ensure the airtightness connected between check valve and automobile engine.
Specifically, 3 one of boss and being concentrically disposed at the inside of upper housing 1, it is used to that valve block is arranged as baffle part
4, it is random thereon or symmetrically offer a number of venthole 31, to realize the movement of gas in certain circumstances.
Specifically, valve block 4 is circular elastic valve plate, have a diameter larger than or equal to the boss 3 diameter, to guarantee
It can cover all ventholes 31 on the boss 3.Meanwhile in order to further enhance the intensity of valve block 4, it is prevented
Excessive deformation occurs in use, the thickness of valve block 4 is inwardly gradually increased from outer rim.
Obviously it can be concluded that, check valve provided by the invention directly prevents while playing recycling fuel-steam
The reflux of fuel-steam, is the strong supplement to automotive ventilation control system, improves the economy of fuel oil while avoiding more
Multiple fuel discharge of steam plays the effect of environmental protection to atmosphere.And one-way valve structures provided by the invention are compact is easily installed, and are
Installation is provided, preferable operability is provided.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (10)
1. a kind of check valve characterized by comprising upper housing (1), lower case (2), boss (3) and valve block (4)；Wherein,
Upper housing (1) lower end is connected by way of rotating welding with the upper end of the lower case (2), on described
Valve chamber is formed between shell (1) and the lower case (2)；
The boss (3) is with being integrally concentrically disposed at the upper housing (1) internal, is provided with several for gas to pass through logical
Stomata (31)；
The valve block (4) is set in protrusion under the boss (3) and matches with the boss (3), in the upper housing (1)
Internal pressure opens the venthole (31) when being greater than the lower case (2) internal pressure, in the upper housing (1) internal pressure
The venthole (31) are closed when less than or equal to the lower case (2) internal pressure.
2. check valve according to claim 1, which is characterized in that the valve block (4) is circular elastic valve plate, diameter
More than or equal to the diameter of the boss (3), to guarantee that it can cover all ventholes on the boss (3)
(31)。
3. check valve according to claim 1 or 2, which is characterized in that the thickness of the valve block (4) from outer rim inwardly gradually
Increase, prevents its excessive deformation during the work time to increase the valve block (4) intensity.
4. check valve according to claim 3, which is characterized in that support portion (11) are additionally provided in the upper housing (1),
The support portion (11) supports institute when the upper housing (1) internal pressure is less than or equal to the lower case (2) internal pressure
Valve block outer rim is stated, to enhance sealing function.
5. check valve according to claim 4, which is characterized in that the support portion (11) is along the upper housing (1) inner wall
Complete cycle setting, outer rim when guaranteeing work with the valve block (4) sufficiently cooperate.
6. check valve according to claim 5, which is characterized in that limited post (21) are additionally provided in the lower case (2),
It is used to support boss (3) and limits the valve block (4) in the movement position of the boss (3) lower end.
7. check valve according to claim 6, which is characterized in that the limited post (21) is barrel-like structure, the tubbiness
It is connected inside the exterior sidewall portions of structure and the lower case (2), upper end is socketed in the boss (3) lower end.
8. check valve according to claim 1, which is characterized in that be additionally provided on the lower case (2) hangnail (22) and
Sealing ring (23)；Wherein,
The hangnail (22) is arranged on the lower end outer wall of the lower case (2), for reinforce the check valve and engine it
Between connection function；
The sealing ring (23) is arranged in the top of the hangnail (22), connects between the check valve and engine for guaranteeing
Airtightness.
9. check valve according to claim 8, which is characterized in that the sealing ring (23) is made by elastic material.
10. -9 check valve according to claim 1, which is characterized in that the venthole (31) is symmetrical or random
It is arranged on the boss (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366151.7A CN110388483A (en) | 2018-04-23 | 2018-04-23 | A kind of check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366151.7A CN110388483A (en) | 2018-04-23 | 2018-04-23 | A kind of check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110388483A true CN110388483A (en) | 2019-10-29 |
Family
ID=68284375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366151.7A Pending CN110388483A (en) | 2018-04-23 | 2018-04-23 | A kind of check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110388483A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240419A (en) * | 2020-09-28 | 2021-01-19 | 威伯科汽车控制系统（中国）有限公司 | Air inlet terminal and vacuum pump provided with same |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615369Y (en) * | 2003-04-10 | 2004-05-12 | 郭宇生 | Vacuum-pumping apparatus |
| CN101881225A (en) * | 2010-06-17 | 2010-11-10 | 重庆长安汽车股份有限公司 | Check valve for engine |
| CN202545913U (en) * | 2012-03-29 | 2012-11-21 | 比亚迪股份有限公司 | Oil tank safety valve |
| CN203500577U (en) * | 2013-09-02 | 2014-03-26 | 北京汽车股份有限公司 | Check valve and automobile fuel pump assembly |
| CN204403456U (en) * | 2015-01-13 | 2015-06-17 | 廊坊舒畅汽车零部件有限公司 | A kind of automobile pipeline one-way valve |
| CN208397364U (en) * | 2018-04-23 | 2019-01-18 | 河北亚大汽车塑料制品有限公司 | A kind of check valve |
-
2018
- 2018-04-23 CN CN201810366151.7A patent/CN110388483A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2615369Y (en) * | 2003-04-10 | 2004-05-12 | 郭宇生 | Vacuum-pumping apparatus |
| CN101881225A (en) * | 2010-06-17 | 2010-11-10 | 重庆长安汽车股份有限公司 | Check valve for engine |
| CN202545913U (en) * | 2012-03-29 | 2012-11-21 | 比亚迪股份有限公司 | Oil tank safety valve |
| CN203500577U (en) * | 2013-09-02 | 2014-03-26 | 北京汽车股份有限公司 | Check valve and automobile fuel pump assembly |
| CN204403456U (en) * | 2015-01-13 | 2015-06-17 | 廊坊舒畅汽车零部件有限公司 | A kind of automobile pipeline one-way valve |
| CN208397364U (en) * | 2018-04-23 | 2019-01-18 | 河北亚大汽车塑料制品有限公司 | A kind of check valve |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112240419A (en) * | 2020-09-28 | 2021-01-19 | 威伯科汽车控制系统（中国）有限公司 | Air inlet terminal and vacuum pump provided with same |
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