CN205365228U - Vehicle fuel tank cap - Google Patents
Vehicle fuel tank cap Download PDFInfo
- Publication number
- CN205365228U CN205365228U CN201620014307.1U CN201620014307U CN205365228U CN 205365228 U CN205365228 U CN 205365228U CN 201620014307 U CN201620014307 U CN 201620014307U CN 205365228 U CN205365228 U CN 205365228U
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- hole
- fuel tank
- cylinder base
- tank cap
- vehicle fuel
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Abstract
The utility model relates to a vehicle fuel tank cap, including the cylinder base, be equipped with the through -hole in the cylinder base, the through -hole including the great first through -hole of the internal diameter that is used for being connected with the oil tank with be used for the less second through -hole of internal diameter is connected with the nozzle, the junction formation step face of second through -hole and first through -hole, be provided with and be used for the screw thread be connected with the oil tank on the cylinder base with on the corresponding surface of first through -hole, be connected with on the first through -hole inside wall in the cylinder base can be under the exogenic action to oil tank inside direction open and when external force disappears automatic re -setting's shell fragment, the edge of shell fragment compresses tightly laminates on the step face, second through -hole internal surface in the cylinder base be provided with be used for placing the sealing washer, with nozzle cooperation sealing connection's seal groove, the outer fringe of cylinder base second through -hole is provided with the joint spare that is used for with nozzle cooperation sealing connection. The utility model discloses a vehicle fuel tank cap realizes opening the fuel tank cap refueling shi buxu, more conveniently refuels, in can preventing simultaneously that oil gas from spreading the air, safety ring protects more.
Description
Technical field
This utility model relates to technical field of automobile, more particularly, it relates to a kind of vehicle fuel tank cap.
Background technology
Vehicle fuel tank cap is an important accessory of automobile, conventional vehicle fuel tank cap is usually direct spiral cover in the oil filler point of fuel tank, when automobile needs to refuel, it is necessary to first fuel tank cap outwarded winding, again oil plant is injected in fuel tank via pouring orifice, add after oil again by fuel tank cap spiral cover in pouring orifice place.Adopt when refueling in this way, it is necessary to first open fuel tank cap, use very inconvenient, and in the process open fuel tank cap, have quite a few oil-gas diffusion in air, both dangerous also not environmentally.
Automobile is currently also had to adopt seperating type lid for oil tank, one as disclosed in Chinese utility model patent CN222135Y exempts from seperating type lid for oil tank, it includes cylinder base and top cover, has a valve body between cylinder base and top cover, and valve body is made up of a spring, a valve seat and a bulb stopper.When adopting this structure to refuel, it is not necessary to whole fuel tank cap is taken off, as long as pulling the purpose that bulb stopper just can reach to open, close.But this structure is excessively complicated, it is achieved get up more difficult, and it is bulb stopper structure due to what adopt, complicated operation, and in the process opened and closed, have oil gas equally reveal.
Utility model content
The technical problems to be solved in the utility model is in that, it is provided that a kind of good airproof performance, simple in construction, can realize the vehicle fuel tank cap of oil-proof gas in covered oiling and refueling process.
This utility model solves its technical problem and be the technical scheme is that
A kind of vehicle fuel tank cap of structure, including cylinder base；Wherein, being provided with through hole in described cylinder base, described through hole includes the first bigger through hole of the internal diameter for being connected and less the second through hole of the internal diameter for being connected with nozzle with fuel tank, and the junction of described second through hole and described first through hole forms a step surface；Outer surface corresponding with described first through hole on described cylinder base is provided with the screw thread for being connected with fuel tank；Being connected on the first through hole medial wall in described cylinder base and can open to described fuel tank internal direction under external force and the automatically reset shell fragment when external force disappears, the edge of described shell fragment compresses and fits on described step surface；The second through-hole inner surface in described cylinder base is provided with for placing the seal groove that sealing ring is connected with described nozzle fitted seal, and the outer rim of described cylinder base the second through hole is provided with the shackle member for being connected with described nozzle fitted seal.
Vehicle fuel tank cap described in the utility model, wherein, described shell fragment is the steel disc being connected with the second through hole medial wall one in described cylinder base, and the junction of the second through hole medial wall in described steel disc and described cylinder base is provided with reinforcement.
Vehicle fuel tank cap described in the utility model, wherein, described shell fragment includes lid and connects the connector of described lid and the second through hole medial wall in described cylinder base.
Vehicle fuel tank cap described in the utility model, wherein, described cover edge is provided with relative axis hole, described cylinder base is provided with corresponding hole；
Described connector includes the rotating shaft being simultaneously arranged in described axis hole and described hole and the torsion spring being set in described rotating shaft.
Vehicle fuel tank cap described in the utility model, wherein, the edge that described shell fragment contacts with described step surface is provided with the first sealant, and the corresponding place of described step surface is provided with the second sealant sealed with described first sealant compression fit realization.
Vehicle fuel tank cap described in the utility model, wherein, described shell fragment edge is provided with annular recess, is provided with sealant in described annular recess；Place corresponding with described annular recess on described step surface is provided with and can be absorbed in the circular fin in described annular recess when described shell fragment closes.
Vehicle fuel tank cap described in the utility model, wherein, the diameter of described steel disc or described lid is 25-27mm.
Vehicle fuel tank cap described in the utility model, wherein, the shackle member of the outer rim of described cylinder base the first through hole is circular protrusion, and described nozzle is provided with the screw thread corresponding with described circular protrusion.
Vehicle fuel tank cap described in the utility model, wherein, the shackle member of the outer rim of described cylinder base the first through hole is the catch for coordinating clamping with described nozzle, and described catch edge is provided with barb.
Vehicle fuel tank cap described in the utility model, wherein, the outer rim of described cylinder base the first through hole is symmetrically arranged with three described catch centered by the axis of described cylinder base.
The beneficial effects of the utility model are in that: by cylinder base inner via hole step surface and can under external force to fuel tank internal direction open and when external force disappears automatically reset shell fragment cooperate, and the coordinating of the outer shackle member of seal groove and cylinder base and nozzle in cylinder base, realize not needing to open fuel tank cap when refueling, directly nozzle is backed down shell fragment to refuel, the trouble of fuel tank cap, convenient oiling need to be first turned on when eliminating oiling；Coordinate realization sealing in refueling process with the seal groove in fuel tank cap and shackle member by nozzle simultaneously, it is prevented that oil-gas diffusion in air, safety and environmental protection more.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below in conjunction with drawings and Examples, the utility model is described in further detail, accompanying drawing in the following describes is only section Example of the present utility model, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawings according to these accompanying drawings:
Fig. 1 is the vehicle fuel tank cap perspective view of one specific embodiment of this utility model；
Fig. 2 is the vehicle fuel tank cap of one specific embodiment of this utility model cross-sectional schematic under shell fragment open mode；
Fig. 3 is the vehicle fuel tank cap of one specific embodiment of this utility model cross-sectional schematic one (band torsion spring) under shell fragment closure state；
Fig. 4 is the vehicle fuel tank cap of one specific embodiment of this utility model cross-sectional schematic two under shell fragment closure state；
Fig. 5 is the elastic piece structure schematic diagram of the vehicle fuel tank cap employing torsion spring of one specific embodiment of this utility model；
Fig. 6 is the vehicle fuel tank cap cross-sectional schematic with catch of one specific embodiment of this utility model；
Fig. 7 is the cross-sectional schematic of the vehicle fuel tank cap with vacuum-breaking valve of one specific embodiment of this utility model；
Fig. 8 is the cross-sectional schematic of the vacuum-breaking valve of one specific embodiment of this utility model.
Detailed description of the invention
In order to make the purpose of this utility model embodiment, technical scheme and advantage clearly, clear, complete description is carried out below in conjunction with the technical scheme in this utility model embodiment, obviously, described embodiment is section Example of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, the every other embodiment that those of ordinary skill in the art obtain under the premise not paying creative work, broadly fall into protection domain of the present utility model.
The vehicle fuel tank cap structure of this utility model preferred embodiment as Figure 1-3, including cylinder base 10；Being provided with through hole in cylinder base 10, this through hole includes the first bigger through hole 12 of the internal diameter for being connected and less the second through hole 11 of the internal diameter for being connected with nozzle with fuel tank, and the junction of the second through hole 11 and the first through hole 12 forms a step surface 13；Outer surface corresponding with the first through hole 12 on cylinder base 10 is provided with the screw thread for being connected with fuel tank；Being connected on the first through hole 12 medial wall in cylinder base 10 and can open to fuel tank internal direction under external force and the automatically reset shell fragment 20 when external force disappears, the edge of shell fragment 20 compresses and fits on step surface 13；The second through hole 11 inner surface in cylinder base 10 is provided with for placing the seal groove 111 that sealing ring is connected with nozzle fitted seal, and the outer rim of cylinder base 10 second through hole 11 is provided with the shackle member for being connected with nozzle fitted seal.When refueling, do not need to open fuel tank cap, directly nozzle is backed down shell fragment 20 and refuels, the trouble of fuel tank cap, convenient oiling when eliminating oiling, need to be first turned on；Coordinate realization sealing in refueling process with the seal groove 111 in fuel tank cap and shackle member by nozzle simultaneously, it is prevented that oil-gas diffusion in air, safety and environmental protection more.
Further, in above-mentioned vehicle fuel tank cap, as shown in Fig. 2, Fig. 3 and Fig. 5, shell fragment 20 includes lid 21 and connects the connector of lid 21 and the second through hole 11 medial wall in cylinder base 10, by connector, lid 21 is applied active force, it is achieved lid 21 is opened to fuel tank internal direction and the automatically reset elastic recovery effect of lid 21 when external force disappears under external force.
Preferably, as shown in Fig. 2, Fig. 3 and Fig. 5, above-mentioned lid 21 edge is provided with relative axis hole 211, cylinder base 10 is provided with corresponding hole 231；Connector includes the rotating shaft 23 being simultaneously arranged in axis hole 211 and hole 231 and the torsion spring 22 being set in rotating shaft 23.Cooperation by rotating shaft 23, torsion spring 22, it is achieved lid 21 is opened to fuel tank internal direction and the automatically reset elastic recovery effect of lid 21 when external force disappears under external force.
Further, in above-mentioned vehicle fuel tank cap, as shown in Figure 4, shell fragment 20 is the steel disc 24 being connected with the second through hole 11 medial wall one in cylinder base 10, and the junction of the second through hole 11 medial wall in steel disc 24 and cylinder base 10 is provided with reinforcement 25.Cylinder base 10 is metalwork, and steel disc 24 thickness is 0.5-2mm, by steel disc 24 own material properties, forms elastic-restoring force, and reinforcement 25 can ensure to be connected firmly between steel disc 24 and cylinder base 10, may replace torsion spring.
Further, in above-mentioned vehicle fuel tank cap, consulting Fig. 1, the edge that shell fragment 20 contacts with step surface 13 is provided with the first sealant (not shown), the corresponding place of step surface 13 is provided with the second sealant (not shown) sealed with the first sealant compression fit realization；Realized the sealing of fuel tank cap by the laminating of the first sealant and the second sealant, automotive oil tank leakage of oil can be prevented.It should be understood that the first sealant and the second sealant can adopt the various encapsulant such as rubber, silica gel to make.
Further, in above-mentioned vehicle fuel tank cap, consulting Fig. 1, shell fragment 20 marginal surface is provided with annular recess (not shown), is provided with sealant (not shown) in annular recess；Place corresponding with annular recess on step surface 13 is provided with the circular fin (not shown) that can be absorbed in annular recess when shell fragment 20 closes.Coordinate, by circular fin and annular recess, the sealing realizing fuel tank cap, automotive oil tank leakage of oil can be prevented.
Further, in above-mentioned vehicle fuel tank cap, as shown in Figure 1, Figure 2, Figure 3 and Figure 4, the shackle member of the outer rim of cylinder base 10 first through hole 12 is circular protrusion 112, nozzle is provided with the screw thread corresponding with circular protrusion 112, realizes being tightly connected of nozzle and fuel tank cap by coordinating of screw thread and circular protrusion 112；Coordinate realization sealing in refueling process with the seal groove 111 in fuel tank cap by nozzle simultaneously, it is prevented that oil-gas diffusion in air, safety and environmental protection more.
Further, in above-mentioned vehicle fuel tank cap, as shown in Figure 6, the shackle member of the outer rim of cylinder base 10 first through hole 12 is three or more catch 113 for coordinating clamping with nozzle, catch 113 edge is provided with barb, and multiple catch 113 are symmetricly set in the outer rim of cylinder base 10 first through hole 12 centered by the axis of cylinder base 10；Nozzle is correspondingly arranged on three or more notch part (not shown), after nozzle is connected with this vehicle fuel tank cap, catch correspondence notch part can be inserted, then rotate nozzle, it is achieved the connection of nozzle and fuel tank cap；Coordinate realization sealing in refueling process with the seal groove in fuel tank cap by nozzle simultaneously, it is prevented that oil-gas diffusion in air, safety and environmental protection more.
Further, in above-mentioned vehicle fuel tank cap, the diameter of steel disc 21 or lid 24 is 25-27mm, with the size of adaptive automobile fuel tank port.
To sum up, this utility model by cylinder base 10 inner via hole step surface 13 and can under external force to fuel tank internal direction open and when external force disappears automatically reset shell fragment 20 cooperate, and the coordinating of seal groove and the outer shackle member of cylinder base 10 and nozzle in cylinder base 10, realize not needing to open fuel tank cap when refueling, directly nozzle is backed down shell fragment 20 to refuel, the trouble of fuel tank cap, convenient oiling need to be first turned on when eliminating oiling；Coordinate realization sealing in refueling process with the seal groove 111 in fuel tank cap and shackle member by nozzle simultaneously, it is prevented that oil-gas diffusion in air, safety and environmental protection more.
Further, as shown in Figure 7,8, sealing lid 30 can also be set in the outside of vehicle fuel tank cap, thus being closed in the outside of the second through hole, it is to avoid dust etc. enter, and it also avoid leaking of oil gas.This sealing lid 30 can pass through to snap connection, the mode such as threaded, rotating shaft connection is arranged on cylinder base 10.
It is not switched on causing tank pressure too low in order to avoid sealing 30 long periods of lid, the too low pump oil efficiency reduction making fuel tank oil pump of tank pressure was even lost efficacy, in fuel tank, negative pressure can cause that sealing lid 30 is not easy defects such as opening, is further provided with vacuum-breaking valve 40 sealing on lid 30.This vacuum-breaking valve 40 includes being fixedly connected on the linkage section 41 sealed on lid 30, setting connects in linkage section 41 hollow channel 42, the spring 43 being arranged in hollow channel 42 and the sealing member 44 being arranged on spring 43 open-ended or closed hollow passage 42 with the second through hole.
As it can be seen, the linkage section 41 of the present embodiment is threaded section 41, corresponding sealing lid 30 is provided with screwed hole, and both are threadably secured and are tightly connected.
Sealing member 44 is steel ball, is arranged on the end of spring 43, blocks the outlet at hollow channel 42 so that the second through hole is hedged off from the outer world, it is ensured that fuel tank is in closed state, it is to avoid the leakage of oil gas under the pressure of spring 43.In order to coordinate the sealing of steel ball, the exit of this hollow channel 42 can be the bellmouth being gradually reduced or be inwardly formed stop edge, and steel ball can block this outlet under the pushing of spring 43.
After oil product in fuel tank uses, certain negative pressure is formed in mailbox, when atmospheric pressure is more than tank pressure (such as 50Pa), due to pressure effect steel ball pressuring spring 43, vacuum-breaking valve 40 automatically opens up, make outside air pass through hollow channel 42, through hole enters fuel tank, so makes can keep in fuel tank certain pressure.
It should be understood that this sealing member 44 can also adopt other structure, for instance shell fragment, valve block etc., unidirectional folding hollow channel 42 can be realized.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to this utility model claims.
Claims (10)
1. a vehicle fuel tank cap, including cylinder base；It is characterized in that, it is provided with through hole in described cylinder base, described through hole includes the first through hole and the second through hole that are connected, and the internal diameter of described first through hole is more than the internal diameter of described second through hole, and the junction of described second through hole and described first through hole forms a step surface；Outer surface corresponding with described first through hole on described cylinder base is provided with the screw thread for being connected with fuel tank；Being connected on the first through hole medial wall in described cylinder base and can open to described fuel tank internal direction under external force and the automatically reset shell fragment when external force disappears, the edge of described shell fragment compresses and fits on described step surface；The second through hole outer surface in described cylinder base is provided with the seal groove being connected with nozzle fitted seal, and the outer rim of described cylinder base the second through hole is provided with the shackle member for being connected with nozzle fitted seal.
2. vehicle fuel tank cap according to claim 1, it is characterised in that described shell fragment is the steel disc being connected with the second through hole medial wall one in described cylinder base, and the junction of the second through hole medial wall in described steel disc and described cylinder base is provided with reinforcement.
3. vehicle fuel tank cap according to claim 1, it is characterised in that described shell fragment includes lid and connects the connector of described lid and the second through hole medial wall in described cylinder base.
4. vehicle fuel tank cap according to claim 3, it is characterised in that be provided with relative axis hole on described cover edge, described cylinder base is provided with corresponding hole；
Described connector includes the rotating shaft being simultaneously arranged in described axis hole and described hole and the torsion spring being set in described rotating shaft.
5. vehicle fuel tank cap according to claim 1, it is characterized in that, being provided with the first sealant with described step surface on the edge that described shell fragment contacts, the corresponding place of described step surface is provided with the second sealant sealed with described first sealant compression fit realization.
6. vehicle fuel tank cap according to claim 1, it is characterised in that described shell fragment edge is provided with annular recess, is provided with sealant in described annular recess；Place corresponding with described annular recess on described step surface is provided with and can be absorbed in the circular fin in described annular recess when described shell fragment closes；
The seal groove of described cylinder base is provided with the sealing ring of the edge mate with described nozzle.
7. vehicle fuel tank cap according to claim 1, it is characterised in that the shackle member of the outer rim of described cylinder base the first through hole is circular protrusion, and described nozzle is provided with the screw thread corresponding with described circular protrusion.
8. vehicle fuel tank cap according to claim 1, it is characterised in that the shackle member of the outer rim of described cylinder base the first through hole is the catch for coordinating clamping with described nozzle, and described catch edge is provided with barb.
9. vehicle fuel tank cap according to claim 8, it is characterised in that the outer rim of described cylinder base the first through hole is symmetrically arranged with three described catch centered by the axis of described cylinder base.
10. the vehicle fuel tank cap according to any one of claim 1-9, it is characterised in that the outside of described first through hole is provided with sealing lid；Described sealing covers and is provided with vacuum-breaking valve；Described vacuum-breaking valve includes being fixedly connected on linkage section that described sealing covers, arranges the hollow channel connected with described second through hole, the spring being arranged in described hollow channel and be arranged on the sealing member of the open or close described hollow channel of described spring end in described linkage section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620014307.1U CN205365228U (en) | 2016-01-07 | 2016-01-07 | Vehicle fuel tank cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620014307.1U CN205365228U (en) | 2016-01-07 | 2016-01-07 | Vehicle fuel tank cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205365228U true CN205365228U (en) | 2016-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620014307.1U Active CN205365228U (en) | 2016-01-07 | 2016-01-07 | Vehicle fuel tank cap |
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| CN (1) | CN205365228U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107724844A (en) * | 2017-09-19 | 2018-02-23 | 伊秀清 | A kind of automatic shutter method of vehicle fuel tank cap |
| CN109399543A (en) * | 2017-08-18 | 2019-03-01 | 比亚迪股份有限公司 | Fuel loading system |
| CN113386555A (en) * | 2020-03-11 | 2021-09-14 | 中国石油化工股份有限公司 | Fuel tank cap, fuel tank and vehicle |
-
2016
- 2016-01-07 CN CN201620014307.1U patent/CN205365228U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399543A (en) * | 2017-08-18 | 2019-03-01 | 比亚迪股份有限公司 | Fuel loading system |
| CN109399543B (en) * | 2017-08-18 | 2020-06-19 | 比亚迪股份有限公司 | Refueling system |
| CN107724844A (en) * | 2017-09-19 | 2018-02-23 | 伊秀清 | A kind of automatic shutter method of vehicle fuel tank cap |
| CN107724844B (en) * | 2017-09-19 | 2018-05-25 | 浙江农林大学暨阳学院 | A kind of automatic shutter method of vehicle fuel tank cap |
| CN113386555A (en) * | 2020-03-11 | 2021-09-14 | 中国石油化工股份有限公司 | Fuel tank cap, fuel tank and vehicle |
| CN113386555B (en) * | 2020-03-11 | 2022-11-08 | 中国石油化工股份有限公司 | Fuel tank cap, fuel tank and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |