CN207916561U - The valve body of automotive oil tank - Google Patents
The valve body of automotive oil tank Download PDFInfo
- Publication number
- CN207916561U CN207916561U CN201721217042.6U CN201721217042U CN207916561U CN 207916561 U CN207916561 U CN 207916561U CN 201721217042 U CN201721217042 U CN 201721217042U CN 207916561 U CN207916561 U CN 207916561U
- Authority
- CN
- China
- Prior art keywords
- upper cover
- valve body
- layer part
- oil tank
- automotive oil
- 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.)
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Abstract
The utility model provides a kind of valve body of automotive oil tank, the valve body is welded on automotive oil tank, the valve body includes upper cover and the valve component that is combined with upper cover, and the upper cover includes upper cover internal layer part and upper cover outer layer part, and the upper cover internal layer part is the moulding of POM materials.The outer cover of the utility model valve body is made of inside and outside materials at two layers, and outer layer HDPE material is welded with fuel tank, and internal layer POM materials prevent gasoline vapor from permeating；Materials at two layers uses the structure of mutual locking and generates gap to prevent from steeping after oil expands, and achievees the purpose that reduce infiltration.
Description
Technical field
The utility model belongs to the technical field of automotive fuel oil system more particularly to a kind of valve body of automotive oil tank.
Background technology
《Light-duty vehicle pollutant emission limit and measurement method (Chinese 6th stage)》(hereinafter referred to as " Light-duty Vehicle state six
Standard ") it will implement in the year two thousand twenty.Six discharge standard of state has the more resistance to gasoline permeance property of raw material in automotive fuel oil system
Tight requirement.The vehicle of current five discharge standard of state, the gradient air bleeding valve outer cover installed on plastic fuel tank generally use single layer
HDPE material discharged since the resistance to gasoline vapor permeance property of HDPE material itself is poor so following state six cannot be met
Standard.
High density polyethylene (HDPE) (High Density Polyethylene, referred to as " HDPE ") is also known as low-pressure polyethylene, is
A kind of crystallinity is high, non-polar plane is in a degree of translucent, and HDPE has excellent resistance to most of lives and industrial
The characteristic of chemicals.
Therefore need to develop it is a kind of disclosure satisfy that six discharge standard of state, can reduce gasoline vapor infiltration new type of valve
Body.
Utility model content
The structure of mutual locking is used to prevent from steeping after oil expands between generation the purpose of this utility model is to provide a kind of
Gap, the valve body for reaching the automotive oil tank for reducing infiltration.
The utility model provides a kind of valve body of automotive oil tank, and the valve body is welded on automotive oil tank, the valve body packet
The valve component for including upper cover and being combined with upper cover, the upper cover include upper cover internal layer part and upper cover outer layer part, in the upper cover
Layer part is the moulding of POM materials.
Preferably, built-in part of the upper cover internal layer part as quadric injection mould mold.
Preferably, the upper cover outer layer part is molded envelope in upper cover internal layer part.
Preferably, the upper cover outer layer part is made of HDPE material.
Preferably, upper cover internal layer part is equipped with multiple protrusions, and upper cover outer layer part is equipped with multiple with the multiple male cooperation
Groove.
Preferably, the protrusion and groove are located at the circumference of upper cover internal layer part and upper cover outer layer part, valve body group
Part is located between multiple protrusions or multiple grooves.
Preferably, upper cover and the complete gradient air bleeding valve of valve component form by the way of friction welding.
The outer cover of the utility model valve body is made of inside and outside materials at two layers, and outer layer HDPE material is welded with fuel tank, internal layer POM
Material prevents gasoline vapor from permeating；Materials at two layers uses the structure of mutual locking and generates gap to prevent from steeping after oil expands, and reaches
Reduce the purpose of infiltration.
Description of the drawings
Fig. 1 is the stereogram of the valve body of the utility model automotive oil tank；
Fig. 2 is the front view of the valve body of automotive oil tank shown in Fig. 1；
Fig. 3 is sectional view of the valve body in the directions A-A of automotive oil tank shown in Fig. 2；
Fig. 4 is the partial enlarged view at the B of Fig. 3；
Fig. 5 is the independent schematic diagram of upper cover internal layer part of the valve body of automotive oil tank shown in Fig. 1；
Fig. 6 is the independent schematic diagram of the upper cover of the valve body of automotive oil tank shown in Fig. 1.
Specific implementation mode
The valve body of the utility model automotive oil tank is a kind of valve for the resistance to gasoline vapor infiltration on automobile plastic fuel tank
Body, as shown in Figures 1 to 6, this automotive oil tank is plastic fuel tank 5, the valve body of the utility model automotive oil tank include upper cover 1, with
And the valve component 2 combined with upper cover 1, in the present embodiment, upper cover 1 and the form by the way of friction welding of valve component 2
Complete gradient air bleeding valve.The utility model valve body is welded on by the way of hot plate welding on plastic fuel tank 5.
Wherein, upper cover 1 includes upper cover internal layer part 3 and upper cover outer layer part 4；Upper cover internal layer part 3 is the moulding of POM materials；
Using upper cover internal layer part 3 as the built-in part of quadric injection mould mold, upper cover outer layer part 4 is made of HDPE material, further upper
Cover outer layer part 4 is molded envelope on upper cover internal layer part 3, ultimately forms upper the 1 of the double-deck material of a composite injection molding.
Upper cover internal layer part 3 is equipped with multiple raised 31, and upper cover outer layer part 4 is equipped with multiple recessed with the multiple raised 31 cooperation
Slot 41 allows the 4 mutual locking of upper cover internal layer part 3 and upper cover outer layer part by the mutual cooperation of protrusion 31 and groove 41.
In the present embodiment, multiple raised 31 and groove 41 be located at circumference week of upper cover internal layer part 3 and upper cover outer layer part 4
It encloses, valve component 2 is between multiple raised 31 or groove 41.
POM materials are polyformaldehyde (English：Polyformaldehyde) thermoplastic crystalline polymer is known as " supersteel "
Or " match steel ", also known as polyoxymethylene.English abbreviation is POM.The polymer of usual oxymethylene polymerization gained, the degree of polymerization is not high,
And easily by thermal depolymerization.Can be used as organic chemical industry, synthetic resin raw material, also serve as medicament fumigating agent.
The utility model upper cover 1 forms hyposmosis component, upper cover 1 using the mode of composite injection molding (or being quadric injection mould)
Materials at two layers between mutual locking structure, separation caused by material expand after bubble oil can be prevented.
The valve body structure principle of the utility model automotive oil tank：
The utility model valve body is welded on plastic fuel tank 5 using the mode of hot plate welding, since HDPE is hot plate welding
The material that must be used, but the resistance to gasoline vapor infiltration of HDPE material is poor, gasoline vapor molecule (hydrocarbon) can permeate
The wall thickness of HDPE material is discharged into the external world and pollutes.So one layer of POM material (upper cover internal layer part 3) built in the utility model,
The resistance to gasoline permeance property of POM materials is fine, very effective can prevent gasoline vapor molecule infiltration from going out.Due to HDPE materials
Bubble oil is resistance to be easy expansion long afterwards, and segregation phenomenon, which can occur, between materials at two layers after expansion causes discharge to increase, so this practicality is new
The structure (see enlarged drawing at B) that mutual locking is used between the materials at two layers of type, effectively prevents the expansion of HDPE layer so that two
The close envelope of layer material is together.
Preferred embodiments of the present invention described in detail above, but the utility model is not limited to above-mentioned implementation
Detail in mode can carry out the technical solution of the utility model in the range of the technology design of the utility model
A variety of equivalents, these equivalents belong to the scope of protection of the utility model.
Claims (7)
1. a kind of valve body of automotive oil tank, the valve body are welded on automotive oil tank, the valve body includes upper cover and and upper cover
In conjunction with valve component, it is characterised in that：The upper cover includes upper cover internal layer part and upper cover outer layer part, and the upper cover internal layer part is
The moulding of POM materials.
2. the valve body of automotive oil tank according to claim 1, it is characterised in that：The upper cover internal layer part is as quadric injection mould
The built-in part of mold.
3. the valve body of automotive oil tank according to claim 1, it is characterised in that：The upper cover outer layer part is molded envelope upper
Cover internal layer part.
4. the valve body of automotive oil tank according to claim 1, it is characterised in that：The upper cover outer layer part is HDPE material system
At.
5. the valve body of automotive oil tank according to claim 1, it is characterised in that：Upper cover internal layer part is equipped with multiple protrusions, on
Cover outer layer part is equipped with multiple grooves with the multiple male cooperation.
6. the valve body of automotive oil tank according to claim 5, it is characterised in that：The protrusion and groove are located at upper cover
The circumference of internal layer part and upper cover outer layer part, valve component are located between multiple protrusions or multiple grooves.
7. the valve body of automotive oil tank according to claim 1, it is characterised in that：Upper cover uses friction welding with valve component
The complete gradient air bleeding valve of mode form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217042.6U CN207916561U (en) | 2017-09-21 | 2017-09-21 | The valve body of automotive oil tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721217042.6U CN207916561U (en) | 2017-09-21 | 2017-09-21 | The valve body of automotive oil tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207916561U true CN207916561U (en) | 2018-09-28 |
Family
ID=63612630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721217042.6U Active CN207916561U (en) | 2017-09-21 | 2017-09-21 | The valve body of automotive oil tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207916561U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719111A (en) * | 2017-09-21 | 2018-02-23 | 苏州欧迪科汽车设计有限公司 | The valve body of automotive oil tank |
| CN109552031A (en) * | 2019-01-28 | 2019-04-02 | 朱超 | A kind of low HC of fuel tank pressure sensor permeates fixed bracket |
-
2017
- 2017-09-21 CN CN201721217042.6U patent/CN207916561U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107719111A (en) * | 2017-09-21 | 2018-02-23 | 苏州欧迪科汽车设计有限公司 | The valve body of automotive oil tank |
| CN109552031A (en) * | 2019-01-28 | 2019-04-02 | 朱超 | A kind of low HC of fuel tank pressure sensor permeates fixed bracket |
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| GR01 | Patent grant |