CN211000916U - Fuel tank oil filler structure - Google Patents
Fuel tank oil filler structure Download PDFInfo
- Publication number
- CN211000916U CN211000916U CN201921763776.3U CN201921763776U CN211000916U CN 211000916 U CN211000916 U CN 211000916U CN 201921763776 U CN201921763776 U CN 201921763776U CN 211000916 U CN211000916 U CN 211000916U
- Authority
- CN
- China
- Prior art keywords
- oil filling
- fuel tank
- filling pipe
- pipe
- cover plate
- 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
Images
Landscapes
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model provides a fuel tank oil filler hole structure, include: the oil filling pipe is inserted on the wall of the fuel tank; the connecting component is used for connecting the oil filling pipe and the fuel tank and plays a role in sealing and fixing; the first cover body is matched and tightly covered with the outer end part of the oil filling pipe; the second cover body is arranged in the oil filling pipe and is used for automatically closing the oil filling pipe; the outer end part of the oil filling pipe is provided with a boss, and a first clamping part is arranged in the oil filling pipe; the first cover body comprises an outer cover matched with the boss, an inner core matched with the pipe diameter of the oil filling pipe and a first sealing ring sleeved on the inner core; the inner core is provided with a second clamping part which is matched and clamped with the first clamping part; the second cover body comprises a cover plate and an elastic return piece, the cover plate is pivoted on the inner wall of the oil filling pipe, and the elastic return piece exerts force to enable the cover plate to upwards close the oil filling pipe. The oil filling port is simple and reasonable in structural design, can guarantee the sealing performance of the oil filling port, meets the low-permeability requirement, is convenient to produce and process, and is not prone to defective products.
Description
Technical Field
The utility model relates to a car fuel tank technical field especially relates to a fuel tank oil filler hole structure
Background
With the development of the automobile industry and the attention of people on energy and environmental problems, energy conservation and environmental protection become one of the important targets pursued by the current automobile products. To achieve this goal, the current permeation and emission limits for hydrocarbons in vehicle fuels are becoming increasingly stringent. In order to meet the permeation and emission requirements of low-carbon hydrogen compounds, the control is required to be carried out in each link of automobile fuel oil filling, storage, combustion use and the like. The fuel tank is used as a fuel storage device, and the reduction of the permeation and emission of hydrocarbon is particularly important. In the structure of the fuel tank, particularly a filling port is used for filling fuel, and the fuel tank needs to be opened and closed frequently, and if the structure is unreasonable in design and not tight in sealing, permeation and leakage are easy to occur, so that fuel loss, potential safety hazards, environmental pollution and the like are caused. Most of the existing oil filling port covers are buckled covers, the sealing property and the pressure bearing property are weak, and large seepage leakage exists; in addition, most of the existing fuel tank oil filling ports are directly injected or welded on the fuel tank, and good sealing performance can be obtained, but the structure is complex in production price, high in rejection rate and high in production cost.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fuel tank oil filler hole structure, this oil filler hole structural design is simple reasonable, can guarantee the leakproofness of oil filler hole, satisfy the hyposmosis requirement, and production and processing is convenient, is difficult for appearing the wastrel.
In order to achieve the above object, the utility model adopts the following technical scheme:
a fuel tank filler opening structure, comprising:
the oil filling pipe is inserted on the wall of the fuel tank;
the connecting component is used for connecting the oil filling pipe and the fuel tank and plays a role in sealing and fixing;
the first cover body is matched and tightly covered with the outer end part of the oil filling pipe;
the second cover body is arranged in the oil filling pipe and is used for automatically closing the oil filling pipe;
the outer end part of the oil filling pipe is provided with a boss, and a first clamping part is arranged in the oil filling pipe; the first cover body comprises an outer cover matched with the boss, an inner core matched with the pipe diameter of the oil filling pipe and a first sealing ring sleeved on the inner core; the inner core is provided with a second clamping part which is matched and clamped with the first clamping part; the second cover body comprises a cover plate and an elastic return piece, the cover plate is pivoted on the inner wall of the oil filling pipe, and the elastic return piece exerts force to enable the cover plate to upwards close the oil filling pipe.
Further, the connecting part comprises a first connecting piece and a second connecting piece, the first connecting piece is welded with the outer part of the filler pipe and extends to the outer part of the fuel tank to be welded with the second connecting piece, and the second connecting piece presses the first connecting piece to the outer wall side of the fuel tank and is welded with the outer wall of the fuel tank.
Furthermore, the connecting component also comprises a second sealing ring, and the second sealing ring is fixedly connected with the outer wall of the fuel tank through a second connecting piece in a welding mode and is pressed between the first connecting piece and the fuel tank.
Furthermore, the elastic return piece is a torsion spring, the torsion spring is sleeved on the pin shaft, the pin shaft is arranged on the inner wall of the oil filling pipe in a penetrating mode, the cover plate is connected with the pin shaft in a rotating mode, and two end portions of the torsion spring are respectively abutted to the inner wall of the oil filling pipe and the lower side of the cover plate. The cover plate can be opened downwards, closed upwards and not opened upwards.
Further, the cover plate is circular, and an elastic sealing layer is attached to the edge of the cover plate.
Further, the first seal ring has an inverted L-shaped cross section for intimate contact with the inside and end faces of the filler tube.
Furthermore, a conical anti-dropping thread ring is arranged on the first sealing ring.
Further, the outer cover and the inner core are integrally formed.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses a fuel tank oil filler hole structure is equipped with first lid and second lid, and first lid cooperates with the outer tip of filling oil pipe, through boss and enclosing cover cooperation, first block portion and the cooperation of second block portion, and first sealing washer is sealed, realizes that firm sealed lid closes. The second cover body is arranged in the fuel filling pipe and can automatically close the fuel filling pipe to prevent fuel oil from flowing outwards; when the oil is filled, the oil filling gun extends into the oil filling pipe and is downwards abutted against the cover plate, the second cover body in the oil filling pipe is opened, fuel oil is filled, after the filling is finished, the oil filling gun is withdrawn, and the cover plate automatically closes the oil filling pipe under the elastic action of the elastic return piece, so that the fuel oil is prevented from flowing backwards through the oil filling opening. The first cover body is matched with the second cover body to play a role in double sealing, so that fuel oil permeation and leakage can be effectively reduced, and the bearing capacity is high.
2. The utility model discloses a fuel tank oil filler hole structure, its oil filler pipe is connected through adapting unit and fuel tank, during production, links firmly first connecting piece and oil filler pipe outer wall welding earlier, links firmly second connecting piece and fuel tank welding at last with first connecting piece and second connecting piece welded connection again, accomplishes the installation of oil filler hole. The structure is simple in design, convenient and fast in welding construction, capable of effectively guaranteeing welding quality and high in product qualification rate.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic cross-sectional structure diagram of the first cover body of the present invention.
Fig. 3 is the structure diagram of the oil filler when oiling.
Reference numerals:
1: an oil filler tube; 11: a boss; 12: a first engaging portion; 2: a first cover body; 21: an outer cover; 22: an inner core; 221: a second engaging portion; 23: a first seal ring; 231: a conical anti-drop thread ring; 3: a second cover body; 31: a cover plate; 32: an elastic return member; 41: a first connecting member; 42: a second connecting member; 43: a second seal ring; 5: a fuel tank; 6: a fuel nozzle.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, the embodiment of the present invention provides a fuel tank filler opening structure, which includes a filler pipe 1, a connecting component, a first cover 2 and a second cover 3. The oil filling pipe 1 is inserted into the wall of the fuel tank 5, the connecting part is connected with the oil filling pipe 1 and the fuel tank 5, the first cover body 2 is tightly matched and covered with the outer end part of the oil filling pipe 1, and the second cover body 3 is arranged in the oil filling pipe 1 and can automatically close the oil filling pipe 1.
An annular boss 11 is arranged at the end part of the oil filling pipe 1 positioned at the outer side of the fuel tank 5, and a first clamping part 12 is arranged inside the oil filling pipe 1. The first cap body 2 is fitted to the end of the filler pipe 1 located outside the fuel tank 5, and the first cap body 2 includes an outer cap 21 portion, an inner core 22 portion, and a first seal ring 23. The outer cover 21 is partially fitted over the boss 11 of the filler pipe 1, and may have an outer portion for covering and engaging the boss 11. The inner core 22 part is matched with the pipe diameter of the oil filling pipe 1 and extends into the oil filling pipe 1. The outer cover 21 is preferably of one-piece construction with the inner core 22. The first sealing ring 23 is sleeved on the inner core 22, and when the inner core is covered, the first cover body 2 and the oil filling pipe 1 are tightly sealed and covered. Further, the inner core 22 is provided with a second engaging portion 221, the second engaging portion 221 is adapted to the first engaging portion 12 inside the filler pipe 1, and when the first lid body 2 is closed, the first engaging portion 12 and the second engaging portion 221 are engaged with each other.
Preferably, the first engaging portion 12 is an annular concave ring, correspondingly, the second engaging portion 221 is an annular convex ring, and both the concave part of the first engaging portion 12 and the convex part of the second engaging portion 221 are arc-shaped. Obviously, the first engaging portion 12 can also be an annular convex ring, and correspondingly, the second engaging portion 221 can be an annular concave ring.
In a preferred embodiment, the cross section of the first sealing ring 23 is inverted L, the first sealing ring 23 is sleeved on the inner core 22, a part of the first sealing ring is attached to the outer wall of the inner core 22, and a part of the first sealing ring is attached to the lower side of the outer cover 21. when the first cover body 1 covers the fuel filling pipe 1, the first sealing ring 23 is closely attached to the inner side wall and the end face of the fuel filling pipe 1.
Further preferably, the first sealing ring 23 is further provided with a tapered anti-drop thread ring 231, and the tapered anti-drop thread ring 231 includes at least two parts, one part is located on the side surface and contacts with the inner side wall of the filler pipe 1, and the other part is located on the lower side surface of the upper part and contacts with the end surface of the filler pipe 1.
The second cover 3 is mounted to the center of the filler tube 1 and includes a cover plate 31 and an elastic return member 32. The cover plate 31 is pivoted to the inner wall of the filler tube 1, and the elastic restoring force of the elastic restoring member 32 can make the cover plate 31 rotate upwards to close the filler tube 1.
Further, the elastic return member 32 is a torsion spring. The second cover body 3 further comprises a pin shaft, the pin shaft penetrates through the mounting block on the inner wall of the oil filling pipe 1, the torsion spring penetrates through the pin shaft, and the cover plate 31 is rotatably connected with the pin shaft. The two ends of the torsion spring are respectively abutted against the lower side surface of the cover plate 31 and the inner wall of the oil filling pipe 1 below the cover plate 31. When oiling, the oiling gun 6 extends into the oiling pipe 1, the cover plate 31 is pushed, the elastic return piece 32 is deformed, the cover plate 31 rotates downwards around the pin shaft, the oiling pipe 1 is opened, and the oiling gun 6 is used for oiling; after the oiling is finished, the oiling gun 6 withdraws from the oiling pipe 1, the thrust borne by the cover plate 31 disappears, the elastic return piece 32 resets, the cover plate 31 rebounds upwards to the original position, and the oiling pipe 1 is closed. The cover plate 31 is circular and is adapted to the diameter of the filler tube 1. in a preferred embodiment, a ring of elastic sealing layer is attached to the edge of the cover plate 31 to enable the cover plate 31 to be well sealed with the filler tube 1.
The connecting member is used for connecting the filler pipe 1 and the fuel tank 5, and plays a role in fastening and sealing connection. The connecting part comprises a first connecting piece 41 and a second connecting piece 42, the inner surface of the first connecting piece 41 is fixedly connected with the outer part of the oil filling pipe 1 in a welding mode, and the part, fixedly connected with the oil filling pipe 1 in the welding mode, of the first connecting piece 41 is inserted into a mounting hole in the pipe wall of the fuel tank 5. The first connecting piece 41 further extends upwards to the outside of the fuel tank 5 and bends outwards, the upper surface of the extending part is fixedly connected with the second connecting piece 42 in a welding mode, the extending part of the first connecting piece 41 is pressed to the outer wall side of the fuel tank 5 by the second connecting piece 42, and the second connecting piece 42 is fixedly connected with the outer wall of the fuel tank 5 in a welding mode, so that the filling pipe 1 is fixedly installed on the fuel tank 5.
Further, the connecting component also comprises a second sealing ring 43, and the second sealing ring 43 is positioned between the lower side of the extending part of the first connecting piece 42 and the outer wall of the fuel tank 5, and is fixedly connected with the outer wall of the fuel tank 5 through welding and pressed tightly by the second connecting piece 42, so that the connection between the filler pipe 1 and the fuel tank 5 is further sealed.
In the foregoing, only certain exemplary embodiments have been described briefly. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
In the description of the present invention, it should be understood that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the product of the present invention is usually placed when in use, or the orientation or positional relationship that a person skilled in the art usually understands, only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.
Claims (8)
1. A fuel tank filler opening structure, comprising:
the oil filling pipe (1) is inserted into the wall of the fuel tank (5);
the connecting component is used for connecting the oil filling pipe (1) and the fuel tank (5) and plays a role in sealing and fixing;
the first cover body (2) is matched and tightly covered with the outer end part of the oil filling pipe (1);
the second cover body (3) is arranged in the oil filling pipe (1) and is used for automatically closing the oil filling pipe (1);
the outer end of the oil filling pipe (1) is provided with a boss (11), and a first clamping part (12) is arranged inside the oil filling pipe (1); the first cover body (2) comprises an outer cover (21) matched with the boss (11), an inner core (22) matched with the pipe diameter of the oil filling pipe (1) and a first sealing ring (23) sleeved on the inner core (22); the inner core (22) is provided with a second clamping part (221), and the second clamping part (221) is matched and clamped with the first clamping part (12); the second cover body (3) comprises a cover plate (31) and an elastic return piece (32), the cover plate (31) is pivoted on the inner wall of the oil filling pipe (1), and the elastic return piece (32) exerts force to enable the cover plate (31) to upwards close the oil filling pipe (1).
2. The fuel tank filler opening structure according to claim 1, wherein the connecting member comprises a first connecting member (41) and a second connecting member (42), the first connecting member (41) being welded to the outside of the filler pipe (1) and extending to the outside of the fuel tank (5) to be welded to the second connecting member (42), the second connecting member (42) pressing the first connecting member (41) toward the outer wall side of the fuel tank (5) and being welded to the outer wall of the fuel tank (5).
3. The fuel tank filler opening structure according to claim 2, wherein the connecting member further comprises a second seal ring (43), and the second seal ring (43) is fixedly welded to the outer wall of the fuel tank (5) through a second connecting member (42) and is compressed between the first connecting member (41) and the fuel tank (5).
4. The fuel tank filler opening structure of claim 1 or 3, wherein the elastic return member (32) is a torsion spring, the torsion spring is sleeved on the pin shaft, the pin shaft penetrates through the inner wall of the filler pipe (1), the cover plate (31) is rotatably connected with the pin shaft, and two end parts of the torsion spring are respectively abutted against the inner wall of the filler pipe (1) and the lower side of the cover plate (31).
5. Fuel tank filler neck construction according to claim 4, characterized in that the cover plate (31) is circular and is provided with an elastic sealing layer at the edge.
6. The fuel tank filler opening structure according to claim 1, wherein the first seal ring (23) has an inverted "L" shape in cross section for close contact with the inside and end face of the filler tube (1).
7. The fuel tank filler opening structure according to claim 6, wherein a tapered retaining thread ring (231) is provided on the first seal ring (23).
8. The fuel tank filler opening structure according to claim 1, wherein the outer cap (21) and the inner core (22) are integrally formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921763776.3U CN211000916U (en) | 2019-10-21 | 2019-10-21 | Fuel tank oil filler structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921763776.3U CN211000916U (en) | 2019-10-21 | 2019-10-21 | Fuel tank oil filler structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211000916U true CN211000916U (en) | 2020-07-14 |
Family
ID=71501780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921763776.3U Expired - Fee Related CN211000916U (en) | 2019-10-21 | 2019-10-21 | Fuel tank oil filler structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211000916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979401A (en) * | 2021-12-06 | 2022-01-28 | 尹浩霖 | Integrated positioning and guiding device for oiling device |
-
2019
- 2019-10-21 CN CN201921763776.3U patent/CN211000916U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113979401A (en) * | 2021-12-06 | 2022-01-28 | 尹浩霖 | Integrated positioning and guiding device for oiling device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7753431B2 (en) | Gas fuel filling lid device for vehicle | |
| CN211000916U (en) | Fuel tank oil filler structure | |
| KR200379665Y1 (en) | Oil Mixing Preventive Device | |
| CN205365228U (en) | Vehicle fuel tank cap | |
| CN217495831U (en) | Novel mechanical sealing oiling head | |
| JP6029423B2 (en) | Fuel filler pipe fuel filler structure | |
| CN201941585U (en) | Outwards-flanged type antitheft oil tank | |
| CN215855098U (en) | Oil gun sealing device with sealing cover plate at end part | |
| CN211032170U (en) | Oil filler cap assembly and oil tank sealing assembly | |
| CN202098271U (en) | Leakage and theft resistant fuel tank cover | |
| CN213799249U (en) | Oil leakage prevention end cover of commercial vehicle oil tank | |
| CN209427474U (en) | Antitheft gauge hatch | |
| CN219193288U (en) | Flip steering oil tank | |
| CN215621377U (en) | Oil filler hole sealing washer | |
| CN201856633U (en) | Buffer of oil filling pipe of automobile oil tank | |
| CN201144937Y (en) | Self-locking type round pin for lorry | |
| CN213973572U (en) | Sealing device for preventing oil leakage of oil tank cover during rollover of vehicle | |
| CN217396234U (en) | Refueling cover plate of vehicle and vehicle | |
| CN211765179U (en) | Tank car with self-sealing function | |
| CN217753467U (en) | Side wall assembly subassembly convenient to refuel | |
| CN215324340U (en) | Alcohol-based fuel oil barrel | |
| CN211000921U (en) | Oil filling port of dual-fuel oil tank | |
| CN212767783U (en) | Oil-gas sealing device for gas station | |
| CN205367717U (en) | Can protect subassembly with rotatory complex protective case of fuel tank cap and rotatory complex | |
| CN208118940U (en) | A kind of quickly-opened racing car fuel tank cap of high leakproofness |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 Termination date: 20211021 |