Oil filler cap hinge and oil filler cap

Abstract

The utility model relates to the technical field of vehicles, in particular to an oil filler cap hinge and an oil filler cap, the oil filler cap hinge comprises a hinge body and a lapping tongue, the hinge body is provided with a positioning surface facing an outer plate of the oil filler cap, one end of the lapping tongue is a fixed end fixed to the hinge body, the other end of the lapping tongue is a limiting end, and the lapping tongue is provided with a limiting groove. The direction from the fixed end to the limiting end is the length direction of the lap tongue, the length direction obliquely extends relative to the positioning face and inclines relative to the X direction, the X direction is parallel to the positioning face, and the limiting end is used for abutting against the oil filler cap outer plate in the X direction. The utility model aims at providing an oil filler cap hinge and an oil filler cap to solve at least one technical problem related in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of vehicles, and more particularly, to a fuel filler door hinge and a fuel filler door. Background Art

[0002] With the continuous change of the external styling structure of automobiles, the appearance surface of the door is becoming increasingly complex, and its manufacturing difficulty is also getting higher and higher. Due to the advantages of light weight, simple structure and molding, neat and beautiful appearance, no rust risk, and good customer sensory quality of plastic doors, it is currently being adopted by more and more vehicle manufacturers.

[0003] Plastic fuel filler doors generally adopt an injection molding process. The hinge and the fuel filler box can be assembled into a fuel filler box assembly. The outer panel of the fuel filler door is clamped to the hinge by clips. Generally, an X-direction limit clip of the fuel filler door hinge will add a U-shaped opening (such as the reference numeral 100 in Figure 6 the attached drawings) that penetrates the plastic fuel filler door hinge on the hinge, which affects the overall strength of the hinge. In addition, it will also cause the visible surface of the hinge to be untidy and unbeautiful when the plastic fuel filler door is opened. Summary of the Utility Model

[0004] The purpose of this application is to provide a fuel filler door hinge and a fuel filler door for at least one technical problem involved in the background art.

[0005] To achieve the above purpose, this application adopts the following technical solutions:

[0006] One aspect of this application provides a fuel filler door hinge, including a hinge body and a tongue. The hinge body has a positioning surface for facing the outer panel of the fuel filler door. One end of the tongue is a fixed end fixed to the hinge body, and the other end of the tongue is a limiting end. The direction from the fixed end to the limiting end is the length direction of the tongue. The length direction extends obliquely with respect to the positioning surface, and the length direction is inclined with respect to the X direction. The X direction is parallel to the positioning surface. The limiting end is used to abut against the outer panel of the fuel filler door in the X direction.

[0007] Optionally, a groove for facing the outer panel of the fuel filler door is formed on the hinge body. The fixed end is fixed to the bottom of the groove. The fixed end is located at the edge of the bottom of the groove, and the limiting end is located outside the groove.

[0008] The beneficial effect of this technical solution is that by fixing the fixed end at the bottom of the groove, the length of the tongue can be appropriately extended. Since when the fuel filler cap outer panel needs to be removed from the fuel filler cap hinge, external force is required to move the tongue to deform the tongue, so as to achieve the purpose of separating the tongue from the fuel filler cap outer panel. Therefore, the longer the tongue is, the longer the force arm corresponding to the external force is, and the smaller the external force required to rotate the tongue to a certain angle is, which makes it easier to remove the fuel filler cap outer panel from the fuel filler cap hinge.

[0009] Optionally, the tongue is a plate-like structure parallel to the Y direction and the length direction, the thickness of the fixed end is greater than the thickness of other parts of the tongue, the thickness of the tongue located at the fixed end and the limiting end gradually decreases in the length direction, the Y direction is perpendicular to the X direction, and the Y direction is parallel to the positioning surface.

[0010] The beneficial effect of this technical solution is that the closer the tongue is to the fixed end, the thicker it is, so the strength of the tongue is guaranteed, so that on the one hand the tongue can more firmly limit the position of the fuel filler cap outer panel, so that the tongue is not easily broken when preventing the fuel filler cap outer panel from moving under unnecessary circumstances, and on the other hand when external force needs to be applied to the tongue to remove the fuel filler cap outer panel, the tongue is not easily broken by external force, and because the thickness of the portion of the tongue near the limiting end is relatively reduced, when the fuel filler cap outer panel needs to be removed, the external force acting on the portion of the tongue near the limiting end is relatively easy to deform the tongue, so as to facilitate the removal of the fuel filler cap outer panel.

[0011] Optionally, a limiting protrusion is further formed on the limiting end, the limiting protrusion is located on the side of the limiting end away from the groove bottom of the groove, the limiting protrusion is a triangular protrusion, and two sides of the triangular protrusion are arranged in the length direction.

[0012] The beneficial effect of this technical solution is that by adding the limiting protrusion, the thickness of the limiting end is increased, so that the outer plate of the fuel filler cover limited by the tongue is not easy to slip off the tongue.

[0013] Optionally, the fuel filler cap hinge provided in the present application further includes a limiting portion fixed to the tongue, wherein the limiting portion is located on a side of the tongue facing the bottom of the groove, and the limiting portion protrudes from the tongue in the thickness direction of the tongue.

[0014] The beneficial effects of this technical solution are as follows: When it is necessary to disassemble the outer panel of the fuel filler door from the hinge of the fuel filler door, an external force is required to deflect the tongue to cause deformation, so as to separate the tongue from the outer panel of the fuel filler door. If the rotation angle of the tongue is too large, resulting in excessive deformation, the tongue is likely to break. By setting the limiting part, the tongue can rotate an appropriate angle under the action of an external force and is difficult to continue rotating after being separated from the outer panel of the fuel filler door, thereby making it difficult for the tongue to be deformed too much under the action of an external force and causing the tongue to break.

[0015] Optionally, the limiting part is a plate-like structure perpendicular to the positioning surface.

[0016] The beneficial effects of this technical solution are as follows: Making the limiting part a plate-like structure makes the volume and weight of the limiting part relatively small, saving manufacturing costs.

[0017] Optionally, the limiting part is a triangular plate-like structure, and in the direction from the limiting end to the fixed end, the dimension of the limiting part in the Z direction gradually decreases, and the Z direction is perpendicular to the positioning surface.

[0018] The beneficial effects of this technical solution are as follows: On the one hand, the limiting part plays a role in preventing the tongue from breaking due to excessive deformation, and on the other hand, it also acts as a reinforcing rib to strengthen the strength of the tongue. Since the limiting end is the position directly receiving the force and the thickness may be small, making the dimension of the limiting part in the Z direction gradually decrease in the direction from the limiting end to the fixed end makes the size of the reinforcing rib larger and the strengthening effect more obvious as it gets closer to the limiting end, reducing the probability of the tongue breaking.

[0019] Another aspect of the present application provides a fuel filler door, including an outer panel of the fuel filler door and the fuel filler door hinge provided in the embodiment of the present application. The outer panel of the fuel filler door abuts against the tongue in the X direction.

[0020] Optionally, the outer panel of the fuel filler door includes a plate body and a limiting rib. The limiting rib is fixed on the plate surface of the plate body facing the fuel filler door hinge, and a limiting surface is formed on the limiting rib. The limiting surface is perpendicular to the X direction, and the limiting surface abuts against the limiting end.

[0021] The beneficial effects of this technical solution are as follows: Making the limiting surface perpendicular to the X direction makes the force arm corresponding to the force exerted by the limiting surface on the tongue as small as possible, so that the force between the limiting surface and the limiting end is not likely to cause the tongue to bend, obtaining a better limiting effect on the outer panel of the fuel filler door.

[0022] Optionally, a guiding surface is further formed on the limiting rib. The guiding surface faces the fuel filler door hinge and is perpendicular to the limiting surface. The guiding surface is used for sliding cooperation with the limiting end.

[0023] The beneficial effect of this technical solution is that when the fuel filler cap outer panel is installed to the fuel filler cap hinge, the fuel filler cap outer panel will generally move in the X direction and be inserted into the slot on the fuel filler cap hinge. During this process, the limiting rib will contact with the limiting end of the latch tongue. In order to reduce the obstruction of the limiting end to the limiting rib, a guide surface perpendicular to the limiting surface is provided. During the process of installing the fuel filler cap outer panel to the fuel filler cap hinge, the limiting rib contacts with the limiting end and moves relatively, that is, the guide surface and the limiting end slide in cooperation. At this time, the action force between the guide surface and the limiting end will cause the latch tongue to produce elastic deformation. When the guide surface is separated from the limiting end, the latch tongue returns to its original shape and causes the limiting end to abut against the limiting surface.

[0024] The technical solution provided by this application can achieve at least one of the following beneficial effects:

[0025] The fuel filler cap hinge and fuel filler cap provided by the present application have a limit end on the tongue that can abut against the fuel filler cap outer panel after the fuel filler cap outer panel is installed on the fuel filler cap hinge, thereby limiting the fuel filler cap outer panel in the X direction. In this way, the fuel filler cap outer panel is limited by providing the fuel filler cap hinge with a tongue that abuts against the fuel filler cap outer panel, and there is no need to provide a U-shaped opening that passes through the plastic fuel filler cap hinge on the fuel filler cap hinge, thereby improving the overall strength of the fuel filler cap hinge; and since there is no need to provide a U-shaped opening that passes through the plastic fuel filler cap hinge on the fuel filler cap hinge, the neatness of the fuel filler cap hinge seen when the plastic fuel filler cap is opened can be improved, thereby improving the aesthetics.

[0026] The additional technical features and advantages of the present application will be more clearly explained in the following description, or can be understood through the specific practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the specific implementation methods of the present application, the following is a brief introduction to the drawings required for the description of the specific implementation methods. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 A partial structural schematic diagram of an implementation manner of a fuel filler cap provided in an embodiment of the present application;

[0029] Figure 2 A schematic structural diagram of an implementation of a fuel filler cap outer panel provided in an embodiment of the present application;

[0030] Figure 3 A schematic cross-sectional view of an implementation of a fuel filler cap provided in an embodiment of the present application;

[0031] Figure 4 is Figure 3 a partial enlarged schematic view at position B in

[0032] Figure 5 a partial enlarged structural schematic view of an implementation manner of the fuel filler door hinge provided by an embodiment of the present application;

[0033] Figure 6 is a structural schematic view of the existing fuel filler box assembly described in the background art.

[0034] Reference numerals:

[0035] 01, fuel filler door hinge; 02, plate body;

[0036] 03, limiting rib; 04, outer plate of fuel filler door;

[0037] 05, fixed end; 06, limiting end;

[0038] 07, limiting surface; 08, guiding surface;

[0039] 09, positioning surface; 10, groove;

[0040] 11, hinge body; 12, tongue;

[0041] 13, limiting projection; 14, limiting portion;

[0042] 100, U-shaped opening;

[0043] A, the position of the tongue on the hinge body. Specific embodiments

[0044] Next, the technical solutions of the present application will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0045] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0047] As Figures 1 to 5 shown, one aspect of the present application provides a fuel filler door hinge 01, including a hinge body 11 and a tongue 12. The hinge body 11 has a positioning surface 09 for facing the outer panel 04 of the fuel filler door. One end of the tongue 12 is a fixed end 05 fixed to the hinge body 11, and the other end of the tongue 12 is a limiting end 06. The direction from the fixed end 05 to the limiting end 06 is the length direction of the tongue 12. The length direction extends obliquely with respect to the positioning surface 09, and the length direction is inclined with respect to the X direction, where the X direction is parallel to the positioning surface 09. The limiting end 06 is used to abut against the outer panel 04 of the fuel filler door in the X direction.

[0048] For the fuel filler door hinge 01 provided by the present application, after the outer panel 04 of the fuel filler door is installed on the fuel filler door hinge 01, the limiting end 06 on the tongue 12 can abut against the outer panel 04 of the fuel filler door, realizing the X-direction limitation of the outer panel 04 of the fuel filler door. In this way, by making the fuel filler door hinge 01 have a tongue 12 that abuts against the outer panel 04 of the fuel filler door to limit the outer panel of the fuel filler door, there is no need to penetrate the U-shaped opening 100 of the fuel filler door hinge made of plastic on the fuel filler door hinge 01, which can improve the overall strength of the fuel filler door hinge 01; and, since there is no need to provide a U-shaped opening 100 that penetrates the fuel filler door hinge 01 made of plastic on the fuel filler door hinge 01, the cleanliness of the fuel filler door hinge 01 seen when the plastic fuel filler door is opened can be improved, thereby improving the aesthetics.

[0049] Optionally, a groove 10 is formed on the hinge body 11 for being set toward the fuel filler cap outer panel 04, the fixed end 05 is fixed to the bottom of the groove 10, the fixed end 05 is located at the edge of the bottom of the groove, and the limit end 06 is located outside the groove 10. Fixing the fixed end 05 to the bottom of the groove 10 can appropriately extend the length of the tongue 12. Since the tongue 12 needs to be moved with external force to deform the tongue 12 when the fuel filler cap outer panel 04 needs to be removed from the fuel filler cap hinge 01, so as to achieve the purpose of separating the tongue 12 from the fuel filler cap outer panel, the longer the tongue 12 is, the longer the force arm corresponding to the external force is, and the smaller the external force required to rotate the tongue 12 to a certain angle is, so that it is convenient to remove the fuel filler cap outer panel 04 from the fuel filler cap hinge 01. In the embodiment of the present application, the positioning surface 09 is preferably formed at the bottom of the groove 10.

[0050] Optionally, the tongue 12 is a plate-like structure parallel to the Y direction and the length direction, the thickness of the fixed end 05 is greater than the thickness of other parts of the tongue 12, the thickness of the tongue 12 located at the fixed end 05 and the limit end 06 gradually decreases in the length direction, the Y direction is perpendicular to the X direction, and the Y direction is parallel to the positioning surface 09. It can be understood that the thickness described in the embodiment of the present application refers to the size of the tongue 12 in the direction perpendicular to the Y direction and the length direction. In this way, the closer the tongue 12 is to the fixed end 05, the thicker it is, thereby ensuring the strength of the tongue 12. On the one hand, the tongue 12 can more firmly limit the position of the fuel filler cap outer panel 04, so that the tongue 12 is not easily broken when preventing the fuel filler cap outer panel 04 from moving under unnecessary circumstances. On the other hand, when the fuel filler cap outer panel 04 needs to be removed and external force needs to be applied to the tongue 12, the tongue 12 is not easily broken by external force. Moreover, since the thickness of the portion of the tongue 12 near the limiting end 06 is relatively reduced, when the fuel filler cap outer panel 04 needs to be removed, the external force applied to the portion of the tongue 12 near the limiting end 06 can relatively easily deform the tongue 12, thereby facilitating the removal of the fuel filler cap outer panel 04.

[0051] Optionally, a limiting protrusion 13 is further formed on the limiting end 06, and the limiting protrusion 13 is located on the side of the limiting end 06 away from the bottom of the groove 10, and the limiting protrusion 13 is a triangular protrusion, and the two sides of the triangular protrusion are arranged in the length direction. By adding the limiting protrusion 13, it is equivalent to increasing the thickness of the limiting end 06, so that the fuel filler cover outer panel 04 limited by the tongue 12 is not easy to slip off the tongue 12.

[0052] Optionally, the fuel filler door hinge 01 provided in the embodiments of the present application further includes a limiting portion 14 fixed to the tongue 12. The limiting portion 14 is located on the side of the tongue 12 facing the bottom of the groove 10, and the limiting portion 14 protrudes from the tongue 12 in the thickness direction of the tongue 12. It can be understood that the thickness direction described in the embodiments of the present application refers to the direction perpendicular to the Y direction and the length direction. Since an external force needs to be applied to deflect the tongue 12 to separate the outer panel 04 of the fuel filler door from the fuel filler door hinge 01 when the outer panel 04 of the fuel filler door needs to be detached from the fuel filler door hinge 01, if the rotation angle of the tongue 12 is too large and the deformation is too large, the tongue 12 is likely to break. By providing the limiting portion 14, the tongue 12 is made to rotate by an appropriate angle under the action of an external force and is difficult to continue rotating after being separated from the outer panel 04 of the fuel filler door, thereby preventing the tongue 12 from being deformed too much under the action of an external force and breaking.

[0053] Optionally, the limiting portion 14 is a plate-like structure perpendicular to the positioning surface 09. Making the limiting portion 14 a plate-like structure makes the volume and weight of the limiting portion 14 relatively small, saving manufacturing costs.

[0054] Optionally, the limiting portion 14 is a triangular plate-like structure, and the dimension of the limiting portion 14 in the Z direction gradually decreases in the direction from the limiting end 06 to the fixed end 05, and the Z direction is perpendicular to the positioning surface 09. The limiting portion 14 plays a role in preventing the tongue 12 from breaking due to excessive deformation on the one hand, and on the other hand, it also acts as a reinforcing rib to strengthen the strength of the tongue 12. Since the limiting end 06 is the directly stressed position and may have a smaller thickness, making the dimension of the limiting portion 14 in the Z direction gradually decrease in the direction from the limiting end 06 to the fixed end 05 makes the size of the reinforcing rib larger and the strengthening effect more obvious closer to the limiting end 06, reducing the probability of the tongue 12 breaking.

[0055] Another aspect of the present application provides a fuel filler door, including an outer panel 04 of the fuel filler door and the fuel filler door hinge 01 provided in the embodiments of the present application. The outer panel 04 of the fuel filler door abuts against the tongue 12 in the X direction.

[0056] The fuel filler door provided by this application adopts the fuel filler door hinge 01 provided by this application. After the outer panel 04 of the fuel filler door is installed on the fuel filler door hinge 01, the limiting end 06 on the tongue 12 can abut against the outer panel 04 of the fuel filler door to achieve the X-direction limiting of the outer panel 04 of the fuel filler door. In this way, by making the fuel filler door hinge 01 have a tongue 12 that abuts against the outer panel 04 of the fuel filler door to limit the outer panel of the fuel filler door, there is no need to set a U-shaped opening 100 that penetrates the plastic-made fuel filler door hinge 01, which can improve the overall strength of the fuel filler door hinge 01; and, because there is no need to set a U-shaped opening 100 that penetrates the plastic-made fuel filler door hinge 01 on the fuel filler door hinge 01, it can improve the cleanliness of the fuel filler door hinge 01 seen when the plastic fuel filler door is opened, and thus improve the aesthetics.

[0057] Optionally, the outer panel 04 of the fuel filler door includes a plate body 02 and a limiting rib 03. The limiting rib 03 is fixed on the plate surface of the plate body 02 facing the fuel filler door hinge 01. A limiting surface 07 is formed on the limiting rib 03. The limiting surface 07 is perpendicular to the X direction, and the limiting surface 07 abuts against the limiting end 06. Making the limiting surface 07 perpendicular to the X direction makes the force arm corresponding to the force exerted by the limiting surface 07 on the tongue 12 as small as possible, so that the force between the limiting surface 07 and the limiting end 06 is not likely to cause the tongue 12 to bend, and a better limiting effect on the outer panel 04 of the fuel filler door is obtained. Of course, the limiting surface 07 can also be inclined relative to the X direction. When the outer panel 04 of the fuel filler door provided by the embodiment of this application needs to be disassembled, insert a screwdriver or other rod-shaped tool (such as Figure 3 shown by the arrow in the figure) into the gap between the outer panel 04 of the fuel filler door and the fuel filler door hinge 01, and make the end of the rod-shaped tool exert a force away from the outer panel 04 of the fuel filler door on the tongue 12, so that the tongue 12 elastically deforms and separates from the limiting rib 03. At this time, pull the outer panel 04 of the fuel filler door in the direction opposite to the direction of the force exerted by the rod-shaped tool, and the outer panel 04 of the fuel filler door can be disassembled.

[0058] Optionally, a guiding surface 08 is further formed on the limiting rib 03. The guiding surface 08 faces the fuel filler door hinge 01. The guiding surface 08 is perpendicular to the limiting surface 07. The guiding surface 08 is used for sliding cooperation with the limiting end 06. When installing the outer panel 04 of the fuel filler door onto the fuel filler door hinge 01, the outer panel 04 of the fuel filler door generally moves in the X direction and is inserted into the card slot on the fuel filler door hinge 01. During this process, the limiting rib 03 contacts the limiting end 06 of the tongue 12. To reduce the obstruction of the limiting end 06 to the limiting rib 03, the guiding surface 08 perpendicular to the limiting surface 07 is provided. During the process of installing the outer panel 04 of the fuel filler door onto the fuel filler door hinge 01, the limiting rib 03 contacts and relatively moves with the limiting end 06, that is, the guiding surface 08 slides with the limiting end 06. At this time, the acting force between the guiding surface 08 and the limiting end 06 causes the tongue 12 to elastically deform. After the guiding surface 08 and the limiting end 06 are separated, the tongue 12 returns to its initial shape and makes the limiting end 06 abut against the limiting surface 07. In the embodiment of the present application, preferably, the outer panel 04 of the fuel filler door includes two limiting ribs 03 arranged side by side in the Y direction.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. Fuel filler door hinge, characterized in that, It includes a hinge body and a tongue, the hinge body has a positioning surface for facing the outer panel of the fuel filler cover, one end of the tongue is a fixed end fixed to the hinge body, and the other end of the tongue is a limiting end, the direction from the fixed end to the limiting end is the length direction of the tongue, the length direction extends obliquely relative to the positioning surface, and the length direction is inclined relative to the X direction, the X direction is parallel to the positioning surface, and the limiting end is used to abut against the outer panel of the fuel filler cover in the X direction.

2. The fuel filler door hinge according to claim 1, characterized in that, A groove is formed on the hinge body and is arranged toward the outer panel of the fuel filler cover. The fixed end is fixed to the bottom of the groove and is located at the edge of the bottom of the groove. The limiting end is located outside the groove.

3. The fuel filler door hinge according to claim 2, wherein The tongue is a plate-like structure parallel to the Y direction and the length direction. The thickness of the fixed end is greater than the thickness of other parts of the tongue. The thickness of the tongue located at the fixed end and the limiting end gradually decreases in the length direction. The Y direction is perpendicular to the X direction, and the Y direction is parallel to the positioning surface.

4. The fuel filler door hinge according to claim 3, wherein, A limiting protrusion is also formed on the limiting end. The limiting protrusion is located on the side of the limiting end away from the groove bottom of the groove. The limiting protrusion is a triangular protrusion, and two sides of the triangular protrusion are arranged in the length direction.

5. The fuel filler door hinge according to any one of claims 1 to 4, characterized in that, It also includes a limiting portion fixed to the tongue, a groove for being set toward the outer panel of the fuel filler cover is formed on the hinge body, the limiting portion is located on the side of the tongue facing the bottom of the groove, and the limiting portion protrudes from the tongue in the thickness direction of the tongue.

6. The fuel filler door hinge according to claim 5, characterized in that, The limiting portion is a plate-shaped structure arranged perpendicular to the positioning surface.

7. The fuel filler door hinge according to claim 6, wherein The limiting portion is a triangular plate-shaped structure, and the size of the limiting portion in the Z direction gradually decreases from the limiting end to the fixed end, and the Z direction is perpendicular to the positioning surface.

8. Fuel filler door, characterized in that, The invention comprises a fuel filler cap outer panel and the fuel filler cap hinge according to any one of claims 1 to 7, wherein the fuel filler cap outer panel abuts against the latch tongue in the X direction.

9. The fuel filler cap according to claim 8, wherein, The fuel filler cover outer plate includes a plate body and a limiting rib, the limiting rib is fixed on the plate surface of the plate body facing the fuel filler cover hinge, a limiting surface is formed on the limiting rib, the limiting surface is perpendicular to the X direction, and the limiting surface abuts against the limiting end.

10. The fuel filler door according to claim 9, wherein, A guide surface is also formed on the limiting rib, the guide surface is arranged facing the fuel filler cover hinge, the guide surface is perpendicular to the limiting surface, and the guide surface is used for sliding cooperation with the limiting end.

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