CN108317276A - A kind of stainless steel non-return valve - Google Patents
A kind of stainless steel non-return valve Download PDFInfo
- Publication number
- CN108317276A CN108317276A CN201810171583.2A CN201810171583A CN108317276A CN 108317276 A CN108317276 A CN 108317276A CN 201810171583 A CN201810171583 A CN 201810171583A CN 108317276 A CN108317276 A CN 108317276A
- Authority
- CN
- China
- Prior art keywords
- spool
- compression spring
- valve body
- interconnecting piece
- conical surface
- 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
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0011—Constructional details; Manufacturing or assembly of elements of fuel systems; Materials therefor
- F02M37/0023—Valves in the fuel supply and return system
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention relates to the technical fields of pipeline equipment, especially a kind of stainless steel non-return valve, including valve body, O-ring seal, spool, compression spring, spring abutment and baffle ring, valve body both ends are respectively interconnecting piece one and interconnecting piece two, centre is cavate, spool is equipped in cavate, spool is hollow form structure, spool one end is equipped with the conical surface, oil inlet of the conical surface against socket part one, the conical surface is equipped with O-ring seal, several through-holes are also opened up on spool, valve core cavity is equipped with compression spring, the top end of compression spring is arranged on the step surface of spool inner wall, compression spring bottom end connects spring abutment, baffle ring is equipped with below spring abutment, baffle ring is stuck in the slot two on the tube wall of the oil outlet of valve body interconnecting piece.Non-return valve of the present invention is arranged between railroad traction in fuel pipe, is horizontally arranged at after starting fuel pump, only a fuel oil is allowed flow to a direction, is ensured after the machine of rising in fuel pipe full of oily, and fuel oil is avoided to flow backwards after a shutdown.Simple in structure, with small vibration, low noise operates steadily, long lifespan.
Description
Technical field
The present invention relates to the technical field of pipeline equipment, especially a kind of stainless steel non-return valves.
Background technology
It has been arranged in parallel 2 fuel pumps in existing diesel fuel system, has needed two pumps to be both simultaneously operable, also may be used
It works independently.When such as 1 fuel oil pump work, the place that no non-return valve fuel oil can be pumped at second occurs flowing backwards phenomenon, influences
The use of fuel pump.Since non-return valve is in more severe working environment, service life is not grown.
Invention content
In order to overcome the shortcomings of existing technology, the present invention provides a kind of stainless steel non-return valves.
The technical solution adopted by the present invention to solve the technical problems is：A kind of stainless steel non-return valve, including valve body, it is O-shaped
Sealing ring, spool, compression spring, spring abutment and baffle ring, the valve body both ends are respectively interconnecting piece one and interconnecting piece two, and centre is cavate,
Spool is equipped in the cavate, the spool is hollow form structure, and described spool one end is equipped with the conical surface, the opposite connection of the conical surface
The oil inlet in portion one, the conical surface are equipped with slot one, O-ring seal are equipped in the slot one, is also opened up on the spool several
The inner wall of a through-hole, the spool is equipped with step surface, and the valve core cavity is equipped with compression spring, and the top of the compression spring is arranged in platform
On terrace, the compression spring bottom end connects spring abutment, and baffle ring is equipped with below the spring abutment, the oil outlet of the interconnecting piece two of the valve body
Tube wall is equipped with slot two, and described baffle ring one end is stuck in slot two.
Through the above technical solutions, valve body is the hollow form structure that both ends are respectively equipped with interconnecting piece, centre is cavate, cavate
Interior to be equipped with spool, spool one end is equipped with the conical surface, and the conical surface is equipped with O-ring seal, several through-holes are also opened up on spool, and fluid is logical
It crosses through-hole to flow through, and spool is mounted in valve body, the movement of spool is to be oriented to by the smooth inner cavity of valve body, motion stabilization, can
It leans on, while compression spring is equipped in valve core cavity, the top end of compression spring is arranged on the step surface of spool inner wall, and compression spring bottom end connects spring abutment,
Baffle ring is equipped with below spring abutment, spool Opening pressure is low, the good with small vibration, low noise of stability, long lifespan.
According to another embodiment of the invention, further comprise the angle of the conical surface between 52 ° ± 3 °.
Through the above technical solutions, so that spool is opened, resistance is small, and sealing effect is good.
According to another embodiment of the invention, further comprise that the O-ring seal is fluoro silicone elastomers.
Through the above technical solutions, enhancing the anti-aging property of O-ring seal.
According to another embodiment of the invention, further comprise the valve body, spool, compression spring, spring abutment and collar material
For stainless steel.
Through the above technical solutions, increasing the rigidity and service life of non-return valve.
The invention has the advantages that non-return valve is arranged between railroad traction in fuel pipe, it is horizontally arranged at startup combustion
After oil pump, only fuel oil is allowed to be flowed to a direction, ensures to be full of oil in fuel pipe after the machine of rising, and fuel oil is avoided to stop
It is flow backwards after machine.It is simple in structure, with small vibration, low noise.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is the structural schematic diagram of the present invention；
1. valve body in figure, 2. O-ring seals, 3. spools, 4. compression springs, 5. spring abutments, 6. baffle rings, 7. interconnecting pieces one, 8. slots
Two, 9. cavates, 10. conical surfaces, 11. slots one, 12. through-holes, 13. interconnecting pieces two, 14. oil inlets, 15. oil outlets.
Specific implementation mode
If Fig. 1 is the structural schematic diagram of the present invention, a kind of stainless steel non-return valve, including valve body 1, O-ring seal 2, spool
3, compression spring 4, spring abutment 5 and baffle ring 6,1 both ends of valve body are respectively interconnecting piece 1 and interconnecting piece 2 13, and centre is cavate 9, in cavate 9
Equipped with spool 3, spool 3 is hollow form structure, and 3 one end of spool is equipped with the conical surface 10, oil inlet of the conical surface 10 against interconnecting piece 1
14, the conical surface 10 is equipped with slot 1, and O-ring seal 2 is equipped in slot 1, several through-holes 12, spool 3 are also opened up on spool 3
Inner wall be equipped with step surface, 3 inner cavity of spool is equipped with compression spring 4, and the top of compression spring 4 is arranged on step surface, the connection of 4 bottom end of compression spring
Spring abutment 5,5 lower section of spring abutment are equipped with baffle ring 6, and the tube wall of the oil outlet 15 of the interconnecting piece 2 13 of valve body 1 is equipped with slot 28, baffle ring 6 one
End is stuck in slot 28.Preferably, the angle of the conical surface 10 is between 52 ° ± 3 °.O-ring seal 2 is fluoro silicone elastomers.Valve body 1,
Spool 3, compression spring 4, spring abutment 5 and 6 material of baffle ring are stainless steel.
The present invention at work, fuel oil by 14 oil inlet of oil inlet of the interconnecting piece 1 of valve body 1, fuel oil push spool 3 to
After press, while fuel oil flows into the inside of spool 3 by through-hole 12 on spool 3 and is gone out by the oil outlet of interconnecting piece 2 13 15
Oil.Intracavitary is equipped with compression spring 4 in spool 3, and the top of compression spring 4 is arranged on the step surface of 3 inner wall of spool, and the bottom end of compression spring 4 is super
The bottom end of spool 3 is crossed, 4 bottom end of compression spring connects spring abutment 5, and 5 lower section of spring abutment is equipped with baffle ring 6, the oil outlet of the interconnecting piece 2 13 of valve body 1
15 tube wall is equipped with slot 28, and 6 one end of baffle ring is stuck in slot 28, and spool 3 presses down under the action of fuel oil fluid, passes through platform
Terrace is pushed down compression spring 4 and is pressed down, and the spring abutment 5 of connection compression spring 4 is blocked by baffle ring 6, realizes that the movement to spool 3 limits.
Conversely, when fuel oil is flow backwards from oil outlet 15 into spool 3, spool 3 is pushed to be moved toward the direction of interconnecting piece 1, led to
It crosses the gap that O-ring seal 2 seals between the taper surface 10 of spool 3 and oil inlet 14 to be sealed, fuel oil can not be from oil inlet
14 flow backwards away.
Spool 3 of the present invention against the end face of oil inlet 14 be equipped with the conical surface 10 of the frustoconical bevel angle at 52 ° ± 3 °, preferably 52 °,
Intracavitary is equipped with compression spring 4 in spool 3, and the top of compression spring 4 is arranged on the step surface of 3 inner wall of spool, this design keeps spool 3 a part of
Tube wall is thin shelled tubular structure, and resistance when spool 3 being caused to open is small, with small vibration and low noise.Spool 3 is mounted on the chamber of valve body 1
In formula 9, spool has preferable mating surface with valve body, forms stable guide frame, spool 3 is by the smooth inner cavity of valve body 1
It is oriented to, motion stabilization is highly reliable.O-ring seal 2 uses fluoro silicone elastomers, substantially increases its sealing effect and enhances
Anti-aging performance.Valve body 1, spool 3, compression spring 4, spring abutment 5 and 6 material of baffle ring are all made of stainless steel, have carried the rigid of non-return valve
Degree and service life.
Non-return valve of the present invention is arranged between railroad traction in fuel pipe, is horizontally arranged at after starting fuel pump, is only permitted
Perhaps fuel oil is flowed to a direction, ensures to be full of oil in fuel pipe after the machine of rising, and fuel oil is avoided to flow backwards after a shutdown.Structure
Simply, with small vibration, low noise.And the valve is suitable for the control and use of IC engine fuel, water, lubricating oil, it can also be used to peculiar to vessel
Diesel generating set installation, the control of engineering machinery and other equipment machine oil, fuel oil, water lines.
Claims (4)
1. a kind of stainless steel non-return valve, including valve body（1）, O-ring seal（2）, spool（3）, compression spring（4）, spring abutment（5）And baffle ring
（6）, characterized in that the valve body（1）Both ends are respectively interconnecting piece one（7）With interconnecting piece two（13）, centre is cavate（9）, institute
State cavate（9）It is interior to be equipped with spool（3）, the spool（3）For hollow form structure, the spool（3）One end is equipped with the conical surface（10）, institute
State the conical surface（10）Against interconnecting piece one（7）Oil inlet（14）, the conical surface（10）It is equipped with slot one（11）, the slot one（11）
It is interior to be equipped with O-ring seal（2）, the spool（3）On also open up several through-holes（12）, the spool（3）Inner wall be equipped with
Step surface, the spool（3）Inner cavity is equipped with compression spring（4）, the compression spring（4）Top be arranged on step surface, the compression spring（4）
Bottom end connects spring abutment（5）, the spring abutment（5）Lower section is equipped with baffle ring（6）, the valve body（1）Interconnecting piece two（13）Oil outlet
（15）Tube wall be equipped with slot two（8）, the baffle ring（6）One end is stuck in slot two（8）It is interior.
2. a kind of stainless steel non-return valve according to claim 1, characterized in that the conical surface（10）Angle 52 ° ±
Between 3 °.
3. a kind of stainless steel non-return valve according to claim 1, characterized in that the O-ring seal（2）For fluorine silicon elasticity
Body.
4. a kind of stainless steel non-return valve according to claim 1, characterized in that the valve body（1）, spool（3）, compression spring
（4）, spring abutment（5）And baffle ring（6）Material is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171583.2A CN108317276A (en) | 2018-03-01 | 2018-03-01 | A kind of stainless steel non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171583.2A CN108317276A (en) | 2018-03-01 | 2018-03-01 | A kind of stainless steel non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108317276A true CN108317276A (en) | 2018-07-24 |
Family
ID=62900042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810171583.2A Pending CN108317276A (en) | 2018-03-01 | 2018-03-01 | A kind of stainless steel non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108317276A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451110U (en) * | 2012-02-08 | 2012-09-26 | 成都力锋清洗机股份有限公司 | Wellhead one-way valve |
| CN202597788U (en) * | 2012-03-28 | 2012-12-12 | 浙江澳川液压器材有限公司 | Hydraulic check valve |
| CN103470818A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Straight one-way cone valve |
| CN203516861U (en) * | 2013-10-11 | 2014-04-02 | 安徽理工大学 | Straight-through type one-way valve |
| CN204042084U (en) * | 2014-07-18 | 2014-12-24 | 天津华迈燃气装备股份有限公司 | The hard leakproof one-way valve of a kind of high pressure for natural gas compressor |
| CN204553948U (en) * | 2015-04-04 | 2015-08-12 | 广东梅雁吉祥水电股份有限公司 | A kind of one-way valve |
| CN204592431U (en) * | 2015-01-26 | 2015-08-26 | 周小琴 | A kind of corrosion-resistant hydrovalve |
| CN104930224A (en) * | 2014-03-23 | 2015-09-23 | 胡森 | Through-type check valve of fire resistant oil vacuum filter |
| CN207935486U (en) * | 2018-03-01 | 2018-10-02 | 常州轻工职业技术学院 | A kind of stainless steel non-return valve |
-
2018
- 2018-03-01 CN CN201810171583.2A patent/CN108317276A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202451110U (en) * | 2012-02-08 | 2012-09-26 | 成都力锋清洗机股份有限公司 | Wellhead one-way valve |
| CN202597788U (en) * | 2012-03-28 | 2012-12-12 | 浙江澳川液压器材有限公司 | Hydraulic check valve |
| CN103470818A (en) * | 2013-09-22 | 2013-12-25 | 太仓康茂电子有限公司 | Straight one-way cone valve |
| CN203516861U (en) * | 2013-10-11 | 2014-04-02 | 安徽理工大学 | Straight-through type one-way valve |
| CN104930224A (en) * | 2014-03-23 | 2015-09-23 | 胡森 | Through-type check valve of fire resistant oil vacuum filter |
| CN204042084U (en) * | 2014-07-18 | 2014-12-24 | 天津华迈燃气装备股份有限公司 | The hard leakproof one-way valve of a kind of high pressure for natural gas compressor |
| CN204592431U (en) * | 2015-01-26 | 2015-08-26 | 周小琴 | A kind of corrosion-resistant hydrovalve |
| CN204553948U (en) * | 2015-04-04 | 2015-08-12 | 广东梅雁吉祥水电股份有限公司 | A kind of one-way valve |
| CN207935486U (en) * | 2018-03-01 | 2018-10-02 | 常州轻工职业技术学院 | A kind of stainless steel non-return valve |
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