CN203009939U - Safety valve of fuel tank - Google Patents
Safety valve of fuel tank Download PDFInfo
- Publication number
- CN203009939U CN203009939U CN 201220740601 CN201220740601U CN203009939U CN 203009939 U CN203009939 U CN 203009939U CN 201220740601 CN201220740601 CN 201220740601 CN 201220740601 U CN201220740601 U CN 201220740601U CN 203009939 U CN203009939 U CN 203009939U
- Authority
- CN
- China
- Prior art keywords
- upper cover
- fuel tank
- valve
- spring
- annular ribs
- 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.)
- Expired - Fee Related
Links
- 239000002828 fuel tank Substances 0.000 title claims abstract description 19
- 210000003205 muscle Anatomy 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 7
- 229920001903 high density polyethylene Polymers 0.000 claims description 3
- 239000004700 high-density polyethylene Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 abstract 2
- 238000005336 cracking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 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
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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- Safety Valves (AREA)
Abstract
The utility model discloses a safety valve of a fuel tank. The safety valve of the fuel tank comprises an upper cover and a middle barrel, wherein a plurality of annular ribs are arranged on the upper cover and on the middle barrel, a spring and a starting valve are arranged in the inner space enclosed by the upper cover and the middle barrel in a sealed mode, the spring and the starting valve are coaxial, and the annular ribs are used for fixing and sealing the upper cover and the middle barrel and positioning the spring and the start valve to enable the spring and the starting valve to be coaxial. According to the safety valve of the fuel tank, the design of the plurality of annular ribs is adopted, the plurality of annular ribs are interference annular ribs and enable the upper cover and the middle barrel to be fixed and sealed, leakage is prevented under the pressure of 8 kpa, the number of sealing rings is reduced, and safety is improved; and due to the fact that the annular ribs enable the spring and the starting valve to be coaxial, starting pressure of a gravity valve of the fuel tank is enabled to be stable.
Description
Technical field
The utility model relates to the fuel tank of vehicle technical field, specifically relates to a kind of fuel tank safety valve.
Background technique
At present, the fuel tank of vehicle safety valve adopts the card base location of upper cover and middle bucket more, seals with seal ring, and general card base is only in a side, seal ring adopts rubber material more, the seal ring oil resistance is poor, and under high pressure, seal ring is easily revealed, and also there is error significantly in the location of card base, easily make open valve and spring not on same axis, make cracking pressure unstable, like this to fuel tank system and automobile storage in unstability and potential safety hazard.
Summary of the invention
For overcoming the deficiencies in the prior art, it is a kind of safe and reliable that the utility model provides, and guarantees the fuel tank of vehicle safety valve of fuel tank system and vehicle stabilization and safety.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of fuel tank safety valve comprises upper cover and middle bucket, it is characterized in that: all be provided with multiple tracks annular muscle on described upper cover and middle bucket, be provided with spring and open valve in the inner space that described upper cover and middle bucket are sealed to, spring and open valve are on same axis.The effect of annular muscle is that upper cover and middle bucket are fixed and seal, and retaining spring and open valve are on same axis.
Described upper cover is the upper cover that the HDPE material is made, and the middle bucket that described middle bucket is made for the PA66 material, described annular muscle are interference annular muscle, and magnitude of interference is 0.2mm.
The beneficial effects of the utility model are:
1, employing multiple tracks annular muscle design, multiple tracks annular muscle is interference annular muscle, makes upper cover and middle barrel of position fix and seal, and does not reveal under the pressure of 8kpa, has reduced seal ring, has increased Security;
2, multiple tracks annular muscle makes open valve and spring keep same axis, makes the fuel tank gravity valve cracking pressure more stable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with specific embodiment, further set forth the utility model.Should be understood that these embodiments only to be used for explanation the utility model and be not used in restriction scope of the present utility model.Should be understood that in addition those skilled in the art can make various changes or modifications the utility model after the content of having read the utility model instruction, these equivalent form of values drop on application appended claims limited range equally.
As shown in Figure 1, a kind of fuel tank safety valve comprises upper cover 1 and middle bucket 2, all is provided with multiple tracks annular muscle 5 on upper cover 1 and middle bucket 2, is provided with spring 4 and open valve 3 in upper cover 1 and middle barrel of 2 inner spaces that are sealed to, and spring 4 and open valve 3 are on same axis.The effect of annular muscle 5 is that upper cover 1 and middle bucket 2 are fixed and seal, and retaining spring 4 and open valve 5 are on same axis.Upper cover 1 adopts the HDPE material to make, and middle bucket 2 adopts the PA66 material to make, and annular muscle 5 is interference annular muscle, and magnitude of interference is 0.2mm.
Above-mentioned fuel tank relief valve design advantage is: adopt annular muscle 5 designs of multiple tracks, multiple tracks annular muscle 5 is interference annular muscle, makes upper cover 1 and middle barrel of 2 positions fix and seal, and does not reveal under the pressure of 8kpa, has reduced seal ring, has increased Security; Annular muscle 5 makes open valve 3 and spring 4 keep same axis, makes the fuel tank gravity valve cracking pressure more stable.
Claims (2)
1. a fuel tank safety valve, comprise upper cover and middle bucket, it is characterized in that: all be provided with multiple tracks annular muscle on described upper cover and middle bucket, be provided with spring and open valve in the inner space that described upper cover and middle bucket are sealed to, spring and open valve are on same axis.
2. a kind of fuel tank safety valve according to claim 1, it is characterized in that: described upper cover is the upper cover that the HDPE material is made, and the middle bucket that described middle bucket is made for the PA66 material, described annular muscle are the annular muscle of interference, and magnitude of interference is 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220740601 CN203009939U (en) | 2012-12-30 | 2012-12-30 | Safety valve of fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220740601 CN203009939U (en) | 2012-12-30 | 2012-12-30 | Safety valve of fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203009939U true CN203009939U (en) | 2013-06-19 |
Family
ID=48601536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220740601 Expired - Fee Related CN203009939U (en) | 2012-12-30 | 2012-12-30 | Safety valve of fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203009939U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972282A (en) * | 2016-06-24 | 2016-09-28 | 奇瑞汽车股份有限公司 | Valve body structure of fuel system |
-
2012
- 2012-12-30 CN CN 201220740601 patent/CN203009939U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972282A (en) * | 2016-06-24 | 2016-09-28 | 奇瑞汽车股份有限公司 | Valve body structure of fuel system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 241000 Nanling Economic Development Zone, Anhui, Wuhu Patentee after: Wuhu Shun Rong 37 mutual entertainment network Polytron Technologies Inc Address before: 241300 Nanling Economic Development Zone, Wuhu, Anhui Patentee before: Wuhu Shunrong Automotive Parts Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20151230 |
|
| EXPY | Termination of patent right or utility model |