CN108843826A - A kind of check valve assembly - Google Patents
A kind of check valve assembly Download PDFInfo
- Publication number
- CN108843826A CN108843826A CN201810956886.5A CN201810956886A CN108843826A CN 108843826 A CN108843826 A CN 108843826A CN 201810956886 A CN201810956886 A CN 201810956886A CN 108843826 A CN108843826 A CN 108843826A
- Authority
- CN
- China
- Prior art keywords
- valve body
- valve
- check valve
- positioning step
- oil duct
- 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
- 238000009434 installation Methods 0.000 claims abstract description 13
- 239000003921 oil Substances 0.000 abstract description 19
- 239000012535 impurity Substances 0.000 abstract description 9
- 239000000295 fuel oil Substances 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract description 2
- 238000000429 assembly Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 239000010729 system oil 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
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
Abstract
The present invention relates to a kind of check valve assemblies, including check valve installation oil duct, valve body, valve seat and plug, the valve body is the axis body that one end is provided with the first positioning step, the valve seat is the cylindric part that a side is provided with the second positioning step, it also abuts and has elastic component between first positioning step and second positioning step, the valve body, elastic element, valve seat and plug are sequentially coaxially mounted on inside the check valve installation oil duct；Impurity can be in helicla flute when valve body slides, will not valve body is stuck, and impurity can be back and forth run with valve body in the helicla flute being slipped on valve body automatically, and the fuel oil flowed is taken away；Simultaneously by being provided with helicla flute, the contact area of valve body and valve seat inner hole when being slidably matched can be reduced, reduces friction, so that sliding is smooth, is opened and closed more flexible.
Description
Technical field
The present invention relates to a kind of valve field more particularly to a kind of check valve assemblies.
Background technique
Check valve is that fluid can only be flowed along water inlet, and water outlet medium can not but flow back, for preventing in hydraulic system
Oil stream reverse flow.Check valve has through type and two kinds of right-angle type.Straight check valve, which is threadedly coupled, to be installed on the pipeline.
However for the check valve in fuel system, in particular for meeting state IV, state V, VI discharge standard diesel engine of state
The integrated type electrical oil transfer pump of vehicle oil circuit feed system, pump oil heat prefilter, and fuel-oil-water is trembled with fear the check valve that uses of treasured, usually because
Impure to mix in fuel oil, the reciprocating motion of the stuck valve body of particulate species impurity influences the service life of check valve.
Summary of the invention
The present invention for the technical problems in the prior art, provides a kind of check valve assembly, has sealing effect good,
Flow resistance is small, not stuck, is opened and closed flexible feature.
The technical solution that the present invention solves above-mentioned technical problem is as follows：A kind of check valve assembly, including check valve installation oil
Road, valve body, valve seat and plug, the valve body are the axis body that one end is provided with the first positioning step, and the valve seat is that a side is set
It is equipped with the cylindric part of the second positioning step, has also abutted bullet between first positioning step and second positioning step
Property element, the valve body, elastic element, valve seat and plug are sequentially coaxially mounted on inside check valve installation oil duct；Oil duct
It is interior, there is suction after having pressure either check valve before check valve, the elastic force of check valve, that is, openable, elastic element is lower than vehicle
Oil duct captured area is greater than the design of normal oil duct inner hole after flow resistance requires design, check valve to open, so flow resistance very little, preferably
, the elastic element is spring.
Further, at least one spiral groove is provided on the axis body surface of the valve body.
Preferably, the first positioning step of the valve body is type conical bench, and the conical step surface is equipped with annular groove,
O-ring is connected on the annular groove.
V-seal face, the type conical bench of the first positioning step of the valve body are provided in the check valve installation oil duct
Face is abutted with the V-seal face by O-ring, is formed and is sealed under the pressure of elastic element, economy, conveniently, sealing performance
It is good.
The beneficial effects of the invention are as follows：
1) if fuel oil has impurity, impurity can be in helicla flute when valve body slides, will not valve body is stuck, and impurity can be with
Valve body is back and forth run in the helicla flute being slipped on valve body automatically, and the fuel oil flowed is taken away；
2) by being provided with helicla flute, the contact area of valve body and valve seat inner hole when being slidably matched can be reduced, reduction rubs
It wipes, so that sliding is smooth, is opened and closed more flexible；
3) elastic element is connected between valve body and valve seat, and valve body and seat design have spring positioning step, guarantees to protect
Card elastic element will not deviate, and in combination with O-ring and V-seal face, can have good sealing effect.
Detailed description of the invention
Fig. 1 is a kind of decomposition diagram of check valve of the present invention；
Fig. 2 is a kind of installation oil duct schematic cross-section of check valve of the present invention；
Fig. 3 is a kind of valve body schematic diagram of check valve of the present invention.
In attached drawing, parts list represented by the reference numerals are as follows：
1, check valve installation oil duct, 2,0 type circle, 3, valve body, 4, elastic element, 5, valve seat, 6, plug, 7, V-seal face,
8, spiral groove.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the invention.
As shown in Figs. 1-2, a kind of check valve, including check valve installation oil duct 1, valve body 3, valve seat 5 and plug 6, the valve
Body 3 is the axis body that one end is provided with the first positioning step, and the valve seat 5 is the cylindrical shape that a side is provided with the second positioning step
Part also abuts between first positioning step and second positioning step and has elastic component 4, the valve body 3, elasticity member
Part 4, valve seat 5 and plug 6 are sequentially coaxially mounted on the inside of the check valve installation oil duct 1；Have before the oil duct internal check valve
There is suction after pressure either check valve, the elastic force of check valve, that is, openable, elastic element 4 requires to set lower than vehicle flow resistance
Meter, oil duct captured area is greater than the design of normal oil duct inner hole after check valve is opened, so flow resistance very little, it is preferred that the bullet
Property element 4 be spring.
As shown in figure 3, a spiral groove 8 is provided on the axis body surface of the valve body 3, if there is impurity in fuel oil,
Impurity will be in helicla flute when valve body 3 slides, will not valve body 3 is stuck；If the axis body of valve body 3 is smooth surface, then any one
Point granule foreign is likely to the reciprocal operation of the stuck valve body of meeting, there is spiral groove 8, if there is impurity reciprocal with valve body 3
Operation is slipped in the spiral groove 8 of 3 bar of valve body automatically, and the fuel oil flowed is taken away；It, can simultaneously by being provided with helicla flute
The contact area of valve body and valve seat inner hole when being slidably matched is reduced, friction is reduced, so that sliding is smooth, is opened and closed more flexible.
Preferably, the first positioning step of the valve body 3 is type conical bench, and it is recessed that the conical step surface is equipped with annular
Slot is connected with O-ring 2 on the annular groove.
V-seal face 7, the taper platform of the first positioning step of the valve body 3 are provided in the check valve installation oil duct 1
Terrace is abutted by O-ring 2 with the V-seal face 7, has good sealing effect under the pressure of elastic element 4.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (4)
1. a kind of check valve assembly, which is characterized in that including check valve installation oil duct (1), valve body (3), valve seat (5) and plug
(6), the valve body (3) is the axis body that one end is provided with the first positioning step, and the valve seat (5) is cylindric part, the valve
Seat (5) is provided with the second positioning step far from the one end of valve body (3), first positioning step and second positioning step it
Between also abut have elastic component (4), the valve body (3), elastic element (4), valve seat (5) and plug (6) are sequentially coaxially mounted on
Check valve installation oil duct (1) is internal, is provided at least one spiral groove (8) on the axis body surface of the valve body (3).
2. a kind of check valve assembly according to claim 1, it is characterised in that：First positioning step of the valve body (3)
For type conical bench, the conical step surface is equipped with annular groove, is connected with O-ring (2) on the annular groove.
3. a kind of check valve assembly according to claim 2, it is characterised in that：It is set in check valve installation oil duct (1)
It is equipped with V-seal face (7), the first positioning step of the valve body (3) is abutted by O-ring with the V-seal face (7).
4. a kind of check valve assembly according to claim 1, it is characterised in that：The elastic element (4) is spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956886.5A CN108843826A (en) | 2018-08-21 | 2018-08-21 | A kind of check valve assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810956886.5A CN108843826A (en) | 2018-08-21 | 2018-08-21 | A kind of check valve assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108843826A true CN108843826A (en) | 2018-11-20 |
Family
ID=64188360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810956886.5A Pending CN108843826A (en) | 2018-08-21 | 2018-08-21 | A kind of check valve assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108843826A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU360497A1 (en) * | CHECK VALVE WITH DRAIN | |||
| CN201236974Y (en) * | 2008-07-22 | 2009-05-13 | 宁波星箭航天机械厂 | Non-return valve |
| CN202597789U (en) * | 2012-04-25 | 2012-12-12 | 浙江安露清洗机有限公司 | Taper sealing high-pressure check valve for cleaning machine |
| CN204164437U (en) * | 2014-10-14 | 2015-02-18 | 安徽红星阀门有限公司 | Buffer valve |
| CN205745468U (en) * | 2016-05-16 | 2016-11-30 | 山东天瑞重工有限公司 | A kind of impacter check valve having automatic pollution discharge structure |
| CN208734947U (en) * | 2018-08-21 | 2019-04-12 | 湖北赛恩斯科技股份有限公司 | A kind of check valve assembly |
-
2018
- 2018-08-21 CN CN201810956886.5A patent/CN108843826A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU360497A1 (en) * | CHECK VALVE WITH DRAIN | |||
| CN201236974Y (en) * | 2008-07-22 | 2009-05-13 | 宁波星箭航天机械厂 | Non-return valve |
| CN202597789U (en) * | 2012-04-25 | 2012-12-12 | 浙江安露清洗机有限公司 | Taper sealing high-pressure check valve for cleaning machine |
| CN204164437U (en) * | 2014-10-14 | 2015-02-18 | 安徽红星阀门有限公司 | Buffer valve |
| CN205745468U (en) * | 2016-05-16 | 2016-11-30 | 山东天瑞重工有限公司 | A kind of impacter check valve having automatic pollution discharge structure |
| CN208734947U (en) * | 2018-08-21 | 2019-04-12 | 湖北赛恩斯科技股份有限公司 | A kind of check valve assembly |
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| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |