CN216128140U - Fuel tank cap and fuel tank - Google Patents
Fuel tank cap and fuel tank Download PDFInfo
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- CN216128140U CN216128140U CN202121922489.XU CN202121922489U CN216128140U CN 216128140 U CN216128140 U CN 216128140U CN 202121922489 U CN202121922489 U CN 202121922489U CN 216128140 U CN216128140 U CN 216128140U
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- sealing
- oil
- outer end
- cover
- fuel tank
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Abstract
The utility model discloses an oil tank cover and an oil tank, wherein the oil tank cover comprises an oil tank cover main body and a valve core assembly, the oil tank cover main body is used for being matched with an oiling channel in a sealing way, an oil passing channel penetrating through the inner end and the outer end of the oil tank cover main body is formed in the oil tank cover main body, the inner end of the oil passing channel is used for being communicated with an inner cavity of the oil tank, and the outer end of the oil passing channel is used for being communicated with the outside; the valve core assembly is movably provided with the oil passing channel, and when the air pressure on the outer side of the valve core assembly is larger than the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the outer side to move inwards so as to open the oil passing channel. The utility model aims to solve the problem that fuel oil in an oil tank leaks from an oil tank cover due to poor sealing performance of the existing oil tank cover.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to the technical field of automobile fuel tanks, and specifically relates to a fuel tank cap and a fuel tank.
Background
The existing fuel tanks for fuel heaters in the market mostly adopt plastic fuel tanks and common iron fuel tanks, and fuel tank covers of the fuel tanks mostly adopt straight-through vent holes, so that jolting vibration can be generated in the driving process of an automobile, the fuel tanks can jolt and vibrate along with the automobile, the fuel in the fuel tanks can overflow from the vent holes of the fuel tanks due to vibration jolting and other reasons, when the automobile is in a stop state, the fuel in the fuel tanks volatilizes and is discharged from the vent holes due to the influence of factors such as weather environment and the like, and the waste of resources is caused.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an oil tank cover and an oil tank, and aims to solve the problem that fuel oil in the oil tank leaks from the oil tank cover due to poor sealing performance of the existing oil tank cover.
In order to achieve the above object, the present invention provides a fuel tank cap for covering and sealing a refueling passage of a fuel tank, the fuel tank cap comprising:
the oil tank cap comprises an oil tank cap body, an oil filling channel and an oil passing channel, wherein the oil tank cap body is used for being matched with the oil filling channel in a sealing way, the oil passing channel penetrating through the inner end and the outer end of the oil tank cap body is formed in the oil tank cap body, the inner end of the oil passing channel is used for being communicated with an inner cavity of an oil tank, and the outer end of the oil passing channel is used for being communicated with the outside; and the number of the first and second groups,
and the valve core assembly is movably provided with the oil passing channel, and when the air pressure on the outer side of the valve core assembly is greater than the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the outer side to move inwards so as to open the oil passing channel.
Optionally, the tank cap body includes:
the outer end cover is provided with a fixing structure, and the fixing structure is used for being fixed with an outer port of the oil filling channel; and the number of the first and second groups,
the inner sealing cover is arranged on the inner side of the outer end cover and is used for being in sealing butt joint with the annular supporting table in the oiling channel;
the inner sealing cover is provided with a first through hole, the outer end cover is provided with a second through hole, and the oil passing channel comprises the first through hole and the second through hole;
the valve core assembly is installed on the first through hole.
Optionally, the peripheral side of the outer end cap is turned inwards to form a buckle, the buckle is used for buckling a mouth edge of the outer port of the refueling passage, and the fixing structure includes the buckle.
Optionally, an elastic support member is disposed between the inner sealing cover and the inner side of the outer end cover, so that the inner sealing cover is elastically movably disposed in the inner and outer directions.
Optionally, the resilient support comprises:
the inner end of the support cover is arranged in an open manner and is provided with a support lip edge, the inner end of the support cover covers the outer end of the first through hole, the support lip edge is supported on the outer side of the inner sealing cover, and the support cover is also provided with a through hole communicated with the second through hole; and the number of the first and second groups,
and the outer end of the supporting spring is abutted against the inner side of the outer end cover, and the inner end of the supporting spring is sleeved on the periphery of the supporting cover.
Optionally, the inner side of the outer end cover is further provided with an outer sealing ring, and the outer sealing ring is used for being in sealing abutment with the outer end of the refueling channel.
Optionally, a sealing gasket is disposed on the inner side of the outer end cap, the peripheral side of the sealing gasket is spaced from the inner side of the outer end cap, and the outer sealing ring is elastically pressed.
Optionally, the oil passage comprises an opening section, and the opening section is provided with an annular step surface facing the inner side;
the valve core assembly comprises a valve rod and a sealing sheet, the valve rod penetrates through the opening section inwards, the sealing sheet is arranged at the inner end of the opening section and is in sealing butt joint with the inner sealing cover, a reset elastic piece is arranged in front of the outer end of the valve rod and the side wall of the opening section and is used for resetting the valve rod outwards, and therefore the sealing sheet is kept in sealing butt joint with the inner sealing cover.
Optionally, the return elastic member comprises a return spring.
The utility model also proposes an oil tank comprising:
a tank having a refueling passage; and the number of the first and second groups,
the fuel tank cap is used for covering and sealing a refueling channel of a fuel tank and comprises a fuel tank cap main body and a valve core assembly, wherein the fuel tank cap main body is used for being matched with the refueling channel in a sealing way, an oil passing channel penetrating through the inner end and the outer end of the fuel tank cap main body is formed in the fuel tank cap main body, the inner end of the oil passing channel is used for being communicated with an inner cavity of the fuel tank, and the outer end of the oil passing channel is used for being communicated with the outside; the valve core assembly is movably provided with the oil passing channel, and when the air pressure on the outer side of the valve core assembly is larger than the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the outer side to move inwards so as to open the oil passing channel.
In the technical scheme of the utility model, the oil tank cover main body can be in sealing fit with the refueling channel, so that fuel oil in the oil tank cannot overflow through the refueling channel, an oil passing channel is formed in the oil tank cover main body, the outer end of the oil passing channel penetrates through the refueling cover main body and is communicated with the outside, the inner end of the oil passing channel is communicated with an inner cavity of the oil tank, and the valve core assembly is arranged in the oil passing channel so as to disconnect or communicate the connection of the oil passing channel and the inner cavity of the oil tank and has a closing position and an opening position; when the fuel pump sucks out the fuel in the fuel tank, the air pressure on the outer side of the valve core assembly is larger than the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the outer side to move inwards, namely the valve core assembly moves from the closed position to the open position to open the fuel passing channel, so that the fuel passing channel is communicated with the inner cavity of the fuel tank, and the fuel in the fuel tank can be smoothly sucked away by the fuel pump; when the fuel pump stops, the air pressure on the outer side of the valve core assembly is consistent with the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the inner side to move outwards, namely the valve core assembly moves from the opening position to the closing position to disconnect the oil passing channel, and the fuel in the fuel tank is prevented from overflowing from the oil passing channel. The valve core assembly is arranged, so that fuel in the fuel tank can be smoothly sucked out by the fuel pump, and the fuel tank can be sealed when the fuel pump stops working, and the fuel in the fuel tank is prevented from overflowing from the fuel passing channel.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic front view of one embodiment of a fuel tank provided by the present invention;
fig. 2 is a schematic cross-sectional view of fig. 1.
The reference numbers illustrate:
the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The existing fuel tanks for fuel heaters in the market mostly adopt plastic fuel tanks and common iron fuel tanks, and the fuel tank covers of the fuel tanks mostly adopt straight-through vent holes, so that jolting vibration can be generated in the driving process of an automobile, the fuel tanks can jolt and vibrate along with the automobile, the fuel in the fuel tanks can overflow from the vent holes of the fuel tanks due to vibration jolting and other reasons, when the automobile is in a stop state, the fuel in the fuel tanks can volatilize and be discharged from the vent holes due to the influence of factors such as climate environment and the like, and the waste of resources is caused.
In view of the above, fig. 1 is a schematic view of an embodiment of a fuel tank cap according to the present invention, and the fuel tank cap will be mainly described with reference to the accompanying drawings. Referring to fig. 1 and 2, the fuel tank cap 100 includes a fuel tank cap body 1 and a valve core assembly 2, the fuel tank cap body 1 is configured to be in sealing fit with the refueling passage 10, a fuel passing passage 11 penetrating through an inner end and an outer end of the fuel tank cap body 1 is formed in the fuel tank cap body 1, the inner end of the fuel passing passage 11 is configured to communicate with an inner cavity of a fuel tank 1000, and the outer end of the fuel passing passage 11 is configured to communicate with the outside; the valve core assembly 2 is movably arranged in the oil passage 11, and when the air pressure outside the valve core assembly 2 is greater than the air pressure inside the valve core assembly 2, the valve core assembly 2 is driven by the air pressure outside to move inwards so as to open the oil passage 11.
In the technical scheme of the utility model, the fuel tank cap body 1 can be in sealing fit with the refueling passage 10, so that fuel in the fuel tank 1000 cannot overflow through the refueling passage 10, an oil passage 11 is formed in the fuel tank cap body 1, the outer end of the oil passage 11 penetrates through the fuel tank cap body 1 and is communicated with the outside, the inner end of the oil passage 11 is communicated with an inner cavity of the fuel tank 1000, and the valve core assembly 2 is arranged in the oil passage 11 so as to disconnect or communicate the connection between the oil passage 11 and the inner cavity of the fuel tank 1000 and have a closed position and an open position; when the fuel pump sucks the fuel in the fuel tank 1000, the air pressure outside the valve core assembly 2 is greater than the air pressure inside the valve core assembly 2, the valve core assembly 2 is driven by the air pressure outside to move inwards, that is, the valve core assembly 2 moves from the closed position to the open position to open the fuel passing channel 11, so that the fuel passing channel 11 is communicated with the inner cavity of the fuel tank 1000, and the fuel in the fuel tank 1000 can be smoothly sucked away by the fuel pump; when the fuel pump is stopped, the air pressure outside the valve core assembly 2 is consistent with the air pressure inside the valve core assembly 2, and the valve core assembly 2 is driven by the air pressure inside to move outwards, namely, the valve core assembly 2 moves from the open position to the closed position to disconnect the oil passage 11, so that the fuel in the fuel tank 1000 is prevented from overflowing from the oil passage 11. The valve core assembly 2 can ensure that the fuel in the fuel tank 1000 is smoothly sucked out by the fuel pump, and can seal the fuel tank 1000 to prevent the fuel in the fuel tank 1000 from overflowing from the fuel passing channel 11 when the fuel pump stops working.
Referring to fig. 2, the fuel tank cap body 1 includes an outer end cap 12 and an inner sealing cap 13, the outer end cap 12 is provided with a fixing structure 123, and the fixing structure 123 is used for fixing with an outer port of the refueling passage 10; the inner sealing cover 13 is mounted on the inner side of the outer end cover 12 and is used for being in sealing contact with an annular supporting table in the refueling passage 10. In an embodiment, the refueling passage 10 has an inner port corresponding to the outer port, one end of the refueling passage 10 away from the outer end cap 12 is provided with an annular support platform, the inner sealing cap 13 is mounted inside the outer end cap 12, and the inner sealing cap is fixedly abutted to the annular support platform to seal the inner port of the refueling passage 10 and prevent fuel in the fuel tank 1000 from overflowing from the inner port of the refueling passage 10, the piece of the inner sealing cap 13 and the outer end cap 12 is provided with a fixing structure 123, and the fixing structure 123 is used for fixing with the outer port of the refueling passage 10, so that the outer tank cap can be relatively fixed with the refueling passage 10 and prevent the outer tank cap from moving and being unable to block the refueling passage 10.
The fixing structure 123 is not limited in arrangement, and may be, for example, a rivet 1231, or a pin. Specifically, referring to fig. 2, in the present embodiment, the fixing structure 123 is a rivet 1231.
In addition, with reference to fig. 2, the inner sealing cover 13 is provided with a first via hole 131, the outer end cover 12 is provided with a second via hole 121, and the oil passage 11 includes the first via hole 131 and the second via hole 121, in this embodiment, the inner sealing cover 13 is provided with the first via hole 131 in a penetrating manner, the first via hole 131 is used for communicating the oil filling passage 10 with the oil tank 1000, the outer end cover 12 is provided with the second via hole 121 penetrating through the outer end cover 12, the second via hole 121 is used for communicating the oil filling passage 10 with the outside, and the first via hole 131 and the second via hole 121 form the oil passage 11. The arrangement of the first via hole 131 and the second via hole 121 enables the oil tank 1000 to be communicated with the outside, and fuel in the oil tank 1000 can be smoothly sucked out when the fuel pump works.
The installation position of the valve core assembly 2 is not limited, and the connection between the oil passage 11 and the inner cavity of the oil tank 1000 can be disconnected or communicated, in an embodiment, the valve core assembly 2 is installed in the first through hole 131; in another embodiment, the valve core assembly 2 is installed in the second through hole 121, specifically, referring to fig. 2, in this embodiment, the valve core assembly 2 is installed in the first through hole 131. Compared with the arrangement mode that the valve core assembly 2 is arranged on the second through hole 121, the arrangement mode that the valve core assembly 2 is arranged on the first through hole 131 has better sealing performance, can prevent the fuel in the fuel tank 1000 from permeating into the refueling channel 10, and reduces the waste of the fuel in the fuel tank 1000.
In order to ensure that the outer end cap 12 can stably seal the refueling passage 10, please refer to fig. 2, in an embodiment, the fixing structure 123 includes the buckle 122, the peripheral side of the outer end cap 12 is turned inwards to form the buckle 122, the peripheral side of the outer port of the refueling passage 10 is turned outwards to form a lip, and the buckle 122 is configured to be clamped on the lip of the outer port of the refueling passage 10, so that the outer end cap 12 can be fixed on the refueling passage 10, and the outer end cap 12 is prevented from being separated from the upper port of the refueling passage 10 due to bumping and shaking generated during the driving process of the vehicle, and the refueling passage 10 cannot be blocked.
Referring to fig. 2, an elastic supporting member 3 is disposed between the inner sealing cover 13 and the inner side of the outer end cover 12, so that the inner sealing cover 13 is elastically movably disposed in the inner and outer directions. In an embodiment, an elastic supporting member 3 is further disposed between the inner sealing cover 13 and the outer end cover 12, the elastic supporting member 3 is disposed between the inner sealing cover 13 and the outer end cover 12 in a compressed state, and one end of the elastic supporting member 3 abuts against the inner sealing cover 13 to drive the inner sealing cover 13 to abut against an annular supporting platform in the refueling passage 10 in a sealing manner, so as to seal the fuel tank 1000 and prevent fuel in the fuel tank 1000 from overflowing. Meanwhile, the elastic supporting member 3 can move in the inward and outward directions due to the elasticity of the elastic supporting member, so that the inner sealing cover 13 can move elastically in the inward and outward directions, the inner sealing cover 13 can be adjusted according to actual conditions, and different occasion requirements are met.
Further, with reference to fig. 2, the elastic supporting member 3 includes a supporting cover 31 and a supporting spring 32, an inner end of the supporting cover 31 is disposed in an open manner and is formed with a supporting lip 311, an inner end of the supporting cover 31 is covered on an outer end of the first through hole 131, the supporting lip 311 is supported on an outer side of the inner sealing cover 13, and the supporting cover 31 is further provided with a through hole 312 communicated with the second through hole 121; in an embodiment, a sealed cavity 313 is formed in the support cover 31, a through hole 312 further penetrates through a side wall of the support cover 31, the through hole 312 communicates the sealed cavity 313 with the refueling channel 10, the support cover 31 covers an outer end of the first through hole 131, so that the sealed cavity 313 communicates with the oil tank 1000, the oil tank 1000 communicates with the refueling channel 10, and the refueling channel 10 communicates with the sealed cavity 313, that is, the first through hole 131 communicates with the second through hole 121, so that external air pressure can enter the oil tank 1000 through the first through hole 131 and the second through hole 121, and the air pressure in the oil tank 1000 is balanced. Meanwhile, the outer end of the supporting spring 32 abuts against the inner side of the outer end cover 12, and the inner end is sleeved on the periphery of the supporting cover 31. One end of the support spring 32 elastically abuts against the inner side of the outer end cap 12, and the other end abuts against the periphery of the support cover 31, so that the support cover 31 is driven to abut against the inner sealing cover 13, the whole fuel tank cap body 1 is kept relatively fixed, and the sealing performance is better.
With continued reference to fig. 2, in order to ensure that the outer end cap 12 can seal the outer port of the refueling passage 10, in an embodiment, an outer sealing ring 14 is further disposed on the inner side of the outer end cap 12, and the outer sealing ring 14 is configured to be in sealing abutment with the outer end of the refueling passage 10. The outer sealing ring 14 is used for abutting against the outer end cover 12 and an outer port of the refueling passage 10, and after fuel in the fuel tank 1000 enters the refueling passage 10, the outer sealing ring can play a role of secondary sealing, so that the fuel in the fuel tank 1000 is prevented from seeping out from a position where the outer end cover 12 abuts against the refueling passage, and the loss of the fuel in the fuel tank 1000 is reduced.
With continued reference to fig. 2, a sealing gasket 15 is disposed on the inner side of the outer end cap 12, the peripheral side of the sealing gasket 15 is spaced from the inner side of the outer end cap 12, and the outer sealing ring 14 is elastically pressed. In an embodiment, a sealing gasket 15 is further disposed on the inner side of the outer end cap 12, the sealing gasket 15 is elastically and movably disposed, and the sealing gasket abuts between the outer sealing ring 14 and the outer port of the refueling passage 10, so that the outer end cap 12 is better in plugging effect and better in sealing property, fuel in the fuel tank 1000 is ensured not to overflow, and loss of fuel in the fuel tank 1000 is reduced.
With continued reference to fig. 2, the oil passage 11 includes an opening section formed with an annular step surface 111 facing inward; the valve core assembly 2 comprises a valve rod 21 and a sealing sheet 22, the valve rod 21 penetrates through the opening section inwards, the sealing sheet 22 is arranged at the inner end of the opening section and is in sealing butt joint with the inner sealing cover 13, a reset elastic piece 23 is arranged in front of the outer end of the valve rod 21 and the side wall of the opening section, the reset elastic piece 23 is used for resetting the valve rod 21 outwards, and therefore the sealing sheet 22 is kept in sealing butt joint with the inner sealing cover 13. In this embodiment, the valve core assembly 2 has a closed position and an open position, and when the valve core assembly 2 is in the open position, the valve rod 21 compresses the return elastic member 23 to drive the sealing sheet 22 to move away from the inner sealing cover 13, so as to communicate the first through hole 131 with the oil tank 1000; when the valve core assembly 2 is in the closed position, the return elastic member 23 drives the valve rod 21 to move in a direction away from the annular step surface 111 until the sealing sheet 22 abuts against the inner sealing cover 13, at this time, the first via hole 131 is disconnected from the oil tank 1000, and the oil tank 1000 is sealed, so that the fuel in the oil tank 1000 is ensured not to overflow.
The elastic return element 23 is not limited to be disposed in a manner that can drive the valve rod 21 to return, for example, the elastic return element 23 may be a return rubber pad or a return spring 231, and specifically, referring to fig. 2, in this embodiment, the elastic return element 23 includes the return spring 231. Compared with the arrangement mode that the return elastic piece 23 is a return rubber pad, the arrangement mode that the return elastic piece 23 is the return spring 231 is better, the strength of the return spring 231 is higher, and the corrosion resistance is better.
The utility model also provides a fuel tank 1000, wherein the fuel tank 1000 comprises a tank body 200 and a fuel tank cover 100, and the tank body 200 is provided with a fuel filling channel 10; the fuel tank cap 100 is configured to cover and seal the fuel filling channel 10 of the fuel tank 1000, and the specific structure of the fuel tank cap 100 refers to the above-mentioned embodiments. Since the present fuel tank cap 100 adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and are not described in detail herein.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a fuel tank cap for the lid is established and is sealed in the filling channel of oil tank, its characterized in that, fuel tank cap includes:
the oil tank cap comprises an oil tank cap body, an oil filling channel and an oil passing channel, wherein the oil tank cap body is used for being matched with the oil filling channel in a sealing way, the oil passing channel penetrating through the inner end and the outer end of the oil tank cap body is formed in the oil tank cap body, the inner end of the oil passing channel is used for being communicated with an inner cavity of an oil tank, and the outer end of the oil passing channel is used for being communicated with the outside; and the number of the first and second groups,
and the valve core assembly is movably provided with the oil passing channel, and when the air pressure on the outer side of the valve core assembly is greater than the air pressure on the inner side of the valve core assembly, the valve core assembly is driven by the air pressure on the outer side to move inwards so as to open the oil passing channel.
2. The fuel tank cap according to claim 1, wherein the fuel tank cap body comprises:
the outer end cover is provided with a fixing structure, and the fixing structure is used for being fixed with an outer port of the oil filling channel; and the number of the first and second groups,
the inner sealing cover is arranged on the inner side of the outer end cover and is used for being in sealing butt joint with the annular supporting table in the oiling channel;
the inner sealing cover is provided with a first through hole, the outer end cover is provided with a second through hole, and the oil passing channel comprises the first through hole and the second through hole;
the valve core assembly is installed on the first through hole.
3. The tank cap according to claim 2, wherein the outer end cap is folded inward on the circumference to form a snap for being caught at a lip of the outer port of the filler neck, and the fixing structure comprises the snap.
4. The tank cap according to claim 2, wherein an elastic support member is provided between the inner sealing cap and an inner side of the outer end cap so that the inner sealing cap is elastically movably provided in an inner and outer direction.
5. The tank cap according to claim 4, wherein the elastic support member comprises:
the inner end of the support cover is arranged in an open manner and is provided with a support lip edge, the inner end of the support cover covers the outer end of the first through hole, the support lip edge is supported on the outer side of the inner sealing cover, and the support cover is also provided with a through hole communicated with the second through hole; and the number of the first and second groups,
and the outer end of the supporting spring is abutted against the inner side of the outer end cover, and the inner end of the supporting spring is sleeved on the periphery of the supporting cover.
6. The tank cap according to claim 2, wherein an outer sealing ring is further provided on an inner side of the outer end cap, the outer sealing ring being adapted to be in sealing abutment with an outer end of the filler passage.
7. The tank cap according to claim 6, wherein a sealing gasket is provided on an inner side of the outer end cap, a peripheral side of the sealing gasket is spaced apart from an inner side of the outer end cap, and the outer sealing ring is elastically pressed.
8. The tank cap according to claim 2, wherein the oil passing passage includes an opening section formed with an annular stepped surface facing inward;
the valve core assembly comprises a valve rod and a sealing sheet, the valve rod penetrates through the opening section inwards, the sealing sheet is arranged at the inner end of the opening section and is in sealing butt joint with the inner sealing cover, a reset elastic piece is arranged in front of the outer end of the valve rod and the side wall of the opening section and is used for resetting the valve rod outwards, and therefore the sealing sheet is kept in sealing butt joint with the inner sealing cover.
9. The tank cap according to claim 8, wherein the return elastic member comprises a return spring.
10. A fuel tank, characterized in that it comprises:
a tank having a refueling passage; and the number of the first and second groups,
a fuel tank cap for capping and sealing a refueling passage of a fuel tank, the fuel tank cap according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121922489.XU CN216128140U (en) | 2021-08-17 | 2021-08-17 | Fuel tank cap and fuel tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121922489.XU CN216128140U (en) | 2021-08-17 | 2021-08-17 | Fuel tank cap and fuel tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216128140U true CN216128140U (en) | 2022-03-25 |
Family
ID=80770439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121922489.XU Active CN216128140U (en) | 2021-08-17 | 2021-08-17 | Fuel tank cap and fuel tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216128140U (en) |
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2021
- 2021-08-17 CN CN202121922489.XU patent/CN216128140U/en active Active
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