CN203627046U - Gasoline engine oil tank cap - Google Patents
Gasoline engine oil tank cap Download PDFInfo
- Publication number
- CN203627046U CN203627046U CN201420004011.2U CN201420004011U CN203627046U CN 203627046 U CN203627046 U CN 203627046U CN 201420004011 U CN201420004011 U CN 201420004011U CN 203627046 U CN203627046 U CN 203627046U
- Authority
- CN
- China
- Prior art keywords
- tank cap
- fuel tank
- seal washer
- erection column
- gasoline engine
- 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 - Lifetime
Links
- 239000010711 gasoline engine oil Substances 0.000 title abstract 4
- 239000002828 fuel tank Substances 0.000 claims description 33
- 239000003502 gasoline Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Images
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses a gasoline engine oil tank cap which comprises an oil tank cap body (1) and a sealing gasket (3). A mounting column (2) is arranged in the inner middle of the oil tank cap body (1), and a center hole is formed in the sealing gasket (3). The gasoline engine oil tank cap is characterized in that vertical grooves (2a) are formed in the surface of the mounting column (2), the center hole of the sealing gasket (3) is a profile hole matched with the mounting column (2), and the sealing gasket (3) sleeves the mounting column (2). The gasoline engine oil tank cap is reasonable in design, simple in structure and easy to implement, friction of the sealing gasket is decreased, and the service life of the sealing gasket is prolonged.
Description
Technical field
The utility model relates to a kind of fuel tank cap of gasoline engine.
Background technique
At present, fuel tank cap of gasoline engine comprises fuel tank cap body (1) and seal washer (3), middle part in fuel tank cap body (1) is provided with erection column (2), described erection column is cylindrical, described seal washer (3) is o shape seal ring, described seal washer is sleeved on erection column, play the effect of sealing, but when reality is used, in the time that fuel tank cap is tightened on fuel tank, seal washer also can and then rotate, like this, seal washer friction is large, and packing ring is easy to wear, the phenomenon that can cause leakage of oil, working life is short.
Model utility content
Technical problem to be solved in the utility model is to provide a kind of fuel tank cap of gasoline engine of avoiding seal washer to rotate in the time tightening fuel tank cap.
The technical solution of the utility model is as follows: a kind of fuel tank cap of gasoline engine, comprise fuel tank cap body (1) and seal washer (3), middle part in fuel tank cap body (1) is provided with erection column (2), described seal washer (3) is provided with center hole, it is characterized in that: described erection column (2) surface is provided with vertical groove (2a), the center hole of described seal washer (3) is the irregularly-shaped hole coordinating with erection column (2), and described seal washer (3) is sleeved on erection column (2).
Adopt technique scheme, in use, the center hole of seal washer coordinates with erection column, is irregularly-shaped hole, like this, be equivalent at groove, in the center hole of seal washer, have the projection of cooperation, like this, in tightening fuel tank cap, seal washer can and then not rotate, and reduces the friction to seal washer, extends the working life of seal washer.
As preferably: be arranged with respectively two vertical grooves (2a) on the forward and backward side of described erection column (2), the center hole of described seal washer (3) is the irregularly-shaped hole coordinating with it.
Beneficial effect: the utility model is reasonable in design, simple in structure, enforcement is easy, reduce the friction to seal washer, extends the working life of seal washer.
Accompanying drawing explanation
The structural representation of Fig. 1 the utility model fuel tank cap of gasoline engine;
Fig. 2 is the A-A sectional view of Fig. 1
Fig. 3 is the structural representation of fuel tank cap body;
Fig. 4 is the structural representation of seal washer;
Fig. 5 is the structural representation of rotary switch.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Embodiment 1: fuel tank cap of gasoline engine of the present utility model is mainly by fuel tank cap body 1, erection column 2, seal washer 3, rotary switch 4, o shape seal ring 5, pressure release valve gap 6, pressure release spring 7, mangetic core assembly 8, pad 9, Compress Spring 10, R shape pin 11, plain washer 12 as Figure 1-5, and the parts such as multiple pressure valve piece 13, multiple pressing spring 14, multiple pressure valve lid 15 form.The middle part of the upper surface of fuel tank cap body 1 is provided with boss 1a, the surface that the middle part of the internal surface of described fuel tank cap body 1 is provided with erection column 2, this erection column 2 is provided with vertical groove 2a, be preferably and on front and back sides, be arranged with respectively two vertical groove 2a, the center hole of described seal washer 3 is the irregularly-shaped hole coordinating with it, that is to say, the local aperture of the corresponding fluted 2a of center hole of seal washer 3 is less, so just form a projection and be stuck in groove 2a, described seal washer 3 is sleeved on erection column 2.Avoid seal washer 3 in the time tightening fuel tank cap to rotate.Reduce the friction to seal washer 3.
The middle part of described erection column 2 is provided with axis step hole, on the erection column 2 of the both sides in this axial step hole, middle part, be also provided with left step hole and right step hole, the lower surface of described erection column 2 is provided with pad 9, the middle part of this pad 9 is provided with center hole, both sides are provided with the air outlet hole that aperture is less than left step hole and right step hole, in this axial step hole, rotary switch 4 is housed, described rotary switch 4 is by lid shape part and form T shape with stem portion, described stem portion is made up of top enlarged diameter section and bottom reduced diameter section, the axial step hole at described erection column middle part is the step hole that aperture, top is greater than aperture, bottom, the diameter of the top enlarged diameter section of described stem portion is identical with the pore size of small aperture, the bottom section in axial step hole, the lid shape part of described rotary switch 4 covers on outside boss 1a, and and boss 1a between gapped, described boss 1a is provided with the through hole 1a-1 communicating with the step hole of erection column 2 both sides, the stem portion of described rotary switch 4 reaches in fuel tank cap body 1 after passing the axial step hole, middle part of erection column 2 and the center hole of pad 9.The part overcoat that the stem portion of described rotary switch 4 is positioned at fuel tank cap body 1 has Compress Spring 10, and the stem portion of Compress Spring 10 belows is set with plain washer 12 outward, and the stem portion under plain washer 12 is provided with pin-and-hole, and R shape pin 11 is housed in this pin-and-hole.
Described boss 1a is provided with annular groove, O-ring seals 5 is housed in this annular groove, the internal surface of described rotary switch 4 is provided with fixture block 4a, dark shallow two fixture block restraining groove 1a-2 and a 1a-3 established in the outside of described boss 1a, as shown in Figure 1, when rotary switch 4 is closed, while namely fixture block 4a being rotated in dark fixture block restraining groove 1a-2, fuel tank cap contacts with O-ring seals 5, main passage is closed, in the time rotating to shallow restraining groove 1a-3, and Compress Spring 10 returns, fuel tank cap does not contact with O-ring seals 5, and open main passage.
Mangetic core assembly 8 is equipped with on the top of the left step hole of described erection column 2, middle part is multiple pressure valve lid 15, bottom is briquetting 9 again, described mangetic core assembly 8 is convex, be inverted, described mangetic core assembly 8 is provided with axial center hole, this axial center hole communicates with through hole 1a-1, described multiple pressure valve lid 15 is spill, its upper end is provided with flange, the projection at the center of described mangetic core assembly 8 is inserted in the groove at multiple pressure valve Gai13 center, the multiple pressing spring 14 of described multiple pressure valve lid 15 overcoats, described multiple pressing spring 14 lower ends are fixed on multiple pressure valve briquetting 13 upper surfaces, described multiple pressure valve briquetting 13 is provided with the center hole communicating with pad 9, gapped between described multiple pressure valve lid 15 and left step hole.
The right step hole of described erection column 2 pressure release valve gap 6, mangetic core assembly 8 be housed from top to bottom successively.Described mangetic core assembly 8 is convex, described mangetic core assembly 8 is provided with axial center hole, this axial center hole communicates with the air outlet hole of pad 9, described pressure release valve gap 6 is also spill, is inverted, and Open Side Down, its upper surface middle part is provided with pressure release valve gap boss, its lower surface is provided with flange, and described pressure release valve gap 6 is outer is set with pressure release spring 7, and the projection at described mangetic core assembly 8 middle parts extend in the groove of pressure release valve gap 6.Gapped between described pressure release valve gap 6 and right step hole.
In the time that fuel tank internal air pressure is large, air pressure arrives pressure release valve gap 6 from the center hole of mangetic core assembly 8, pressure release valve gap 6 is upwards pushed up, and like this, the convex portion of mangetic core assembly 8 stretches out pressure release valve gap 6, make to reserve gap between pressure release valve gap 6, gas arrives the through hole 1a-1 of boss 1a by the gap between pressure release valve gap 6 and mangetic core assembly 8, be discharged to outside fuel tank, after pressure release, pressure release spring 7 returns, seal mangetic core assembly 8 and pressure release valve gap 6.
When the pressure hour in fuel tank, on the contrary, ambient atmos enters mangetic core assembly 8 from the through hole 1a-1 of boss 1a, gas acts on multiple pressure valve lid 13, between multiple pressure valve lid 13 and mangetic core assembly 8, reserves gap, and gas enters in fuel tank, when reaching after inside and outside air pressure balance, multiple pressing spring 14 returns.Can remain the balance of fuel tank inner and outer air pressure, not affect fuel-displaced.
Claims (2)
1. a fuel tank cap of gasoline engine, comprise fuel tank cap body (1) and seal washer (3), middle part in fuel tank cap body (1) is provided with erection column (2), described seal washer (3) is provided with center hole, it is characterized in that: described erection column (2) surface is provided with vertical groove (2a), the center hole of described seal washer (3) is the irregularly-shaped hole coordinating with erection column (2), and described seal washer (3) is sleeved on erection column (2).
2. fuel tank cap of gasoline engine according to claim 1, is characterized in that: on the forward and backward side of described erection column (2), be arranged with respectively two vertical grooves (2a), the center hole of described seal washer (3) is the irregularly-shaped hole coordinating with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004011.2U CN203627046U (en) | 2014-01-03 | 2014-01-03 | Gasoline engine oil tank cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420004011.2U CN203627046U (en) | 2014-01-03 | 2014-01-03 | Gasoline engine oil tank cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627046U true CN203627046U (en) | 2014-06-04 |
Family
ID=50813532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420004011.2U Expired - Lifetime CN203627046U (en) | 2014-01-03 | 2014-01-03 | Gasoline engine oil tank cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685295A (en) * | 2021-09-30 | 2021-11-23 | 江苏大艺科技股份有限公司 | Oilcan and chain saw |
-
2014
- 2014-01-03 CN CN201420004011.2U patent/CN203627046U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685295A (en) * | 2021-09-30 | 2021-11-23 | 江苏大艺科技股份有限公司 | Oilcan and chain saw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |