Oil filler cap and vehicle

Abstract

The utility model provides an oil filler cap and a vehicle, the oil filler cap comprises an oil filler cap body and a bottom cap, the oil filler cap body comprises a screw-in part and a cover cap part, the screw-in part is used for being screwed into an engine oil filling port, and the cover cap part is connected to one end of the screw-in part to cover the engine oil filling port. The bottom cover comprises a bottom cover body and a connecting part arranged on one side of the bottom cover body, the connecting part is detachably connected with the screwing-in part, and the bottom cover body can be arranged at the end, away from the cover part, of the screwing-in part in a blocking mode. The oil filler cap, the oil filler cap body and the bottom cap can be made of different raw materials, the oil filler cap body can be independently used for sealing an engine oil filling port of a vehicle, the oil filler cap body and the bottom cap can be assembled together and jointly used for sealing the engine oil filling port, and the bottom cap can be used as an internal decorative cap, is produced to be white and is not prone to deformation. Even if engine oil emulsifying substances are attached to the bottom cover, comfort can be provided for customers due to similar colors, and the bottom cover is black, so that users can observe the engine oil emulsifying degree conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle parts, and in particular to a fuel filler cap and a vehicle using the fuel filler cap. Background Art

[0002] On a vehicle, the oil filler port is usually located on the upper rocker cover of the engine assembly and is usually sealed by a fuel filler cap. The oil filler port can be used to add oil to the engine assembly and check the daily oil application condition.

[0003] At present, most vehicles use black fuel caps because the cost of black fuel caps is relatively low. However, many users also like white fuel caps because the engine oil will appear milky white after emulsification. When using a white fuel cap, even if some milky white oil emulsification substance adheres to the fuel cap, the white fuel cap is closer to the milky white color, which gives people a more comfortable feeling.

[0004] However, the existing fuel filler cap mainly covers the oil filling port to prevent dust, moisture and debris from entering the fuel tank. It is generally black or white, which makes it difficult to meet the requirements of both vehicle manufacturers and users and has a poor degree of versatility. Utility Model Content

[0005] In view of this, the present invention aims to provide a fuel filler cap that can better meet the needs of manufacturers and customers and has good versatility.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0007] A fuel filler cap, comprising a fuel filler cap body and a bottom cover;

[0008] The oil filler cap body includes a screw-in portion and a cover portion, wherein the screw-in portion is used to be screwed into the oil filling port, and the cover portion is connected to one end of the screw-in portion to cover the oil filling port;

[0009] The bottom cover comprises a bottom cover body and a connecting portion provided on one side of the bottom cover body. The connecting portion is detachably connected to the screw-in portion and enables the bottom cover body to be blocked at an end of the screw-in portion away from the cover portion.

[0010] Furthermore, a first cavity is provided in the screw-in portion, a reinforcement structure is provided in the first cavity, and the reinforcement structure is detachably connected to the connecting portion.

[0011] Furthermore, a threaded hole is provided on the reinforcement structure, and the connecting portion includes a stud provided on the bottom cover body, and the stud is screwed into the threaded hole.

[0012] Furthermore, the reinforcement structure includes a first reinforcement plate and a second reinforcement plate arranged crosswise, and the threaded hole is provided at the intersection of the first reinforcement plate and the second reinforcement plate;

[0013] At least one side of the first reinforcing plate is connected to the inner wall of the first cavity; and / or at least one side of the second reinforcing plate is connected to the inner wall of the first cavity.

[0014] Furthermore, a grip portion is provided on the cover portion, and a logo mounting structure is provided on at least one of the grip portion and the cover portion.

[0015] Furthermore, the gripping portion is formed by a portion of the cover portion protruding toward a side away from the screw-in portion, a second cavity is provided in the gripping portion, the second cavity is connected to the first cavity, and the reinforcement structure extends into the second cavity.

[0016] Furthermore, the bottom cover body is conical, and the bottom of the bottom cover body is arranged at the end of the screw-in portion, and the top of the bottom cover body protrudes to a side away from the screw-in portion.

[0017] Furthermore, a first retaining ring and a second retaining ring are provided on one side of the cover portion facing the screw-in portion. The first retaining ring is sleeved outside the second retaining ring, and an annular gap is formed between the first retaining ring and the second retaining ring.

[0018] Furthermore, a mounting groove is provided at a portion of the screw-in portion close to the cover portion, the mounting groove is used to install a sealing ring, and the sealing ring is used to seal the gap between the screw-in portion and the oil filling port.

[0019] Compared with the prior art, the present invention has the following advantages:

[0020] The fuel filler cap described in the utility model includes a fuel filler cap body and a bottom cover, which are detachably connected together. Compared with the existing fuel filler cap, the fuel filler cap of the utility model is designed as a split structure, the body is used to seal the fuel filler port, and the bottom cover can be used as an internal decorative cover to increase the function of the fuel filler cap.

[0021] Specifically, the fuel filler cap body and the bottom cover are processed separately. During production, the fuel filler cap body and the bottom cover can be made of materials of different colors. The fuel filler cap body can be used alone to seal the vehicle's oil filling port. The fuel filler cap body and the bottom cover can also be assembled together to seal the oil filling port. The bottom cover is produced in white. Even if oil emulsification substance is attached to the bottom cover, it will give customers a sense of comfort due to the similar color. The bottom cover is produced in black, which has a lower production cost and is convenient for users to observe the degree of oil emulsification.

[0022] Furthermore, the provision of a first cavity within the screw-in portion and a first reinforcement plate effectively balances the dual requirements of weight reduction and structural strength. Providing threaded holes in the reinforcement structure and employing studs as the connecting portion enhances the reliability of the connection between the connecting portion and the screw-in portion, while also facilitating assembly and disassembly of the bottom cover. The reinforcement structure comprises a first reinforcement plate and a second reinforcement plate, with the threaded holes located at the intersection of the first and second reinforcement plates, further enhancing the reliability of the bottom cover's fixation.

[0023] Additionally, a grip is provided on the cover to facilitate user removal and installation of the fuel filler cap. A logo mounting structure is provided on at least one of the grip and the cover, allowing different manufacturers to share the fuel filler cap and simply attach their own logo, making the fuel filler cap highly versatile. A second cavity is provided within the grip, and the reinforcement structure extends into this second cavity, further reducing weight while ensuring structural strength requirements.

[0024] The conical bottom cover body, which is typically exposed to oil vapor and splashing oil, facilitates condensation of the oil vapor. The conical sidewalls guide the oil droplets formed by condensation and oil splashing onto the bottom cover body back into the tank. Furthermore, a black bottom cover facilitates monitoring of the oil emulsification process.

[0025] Furthermore, the first retaining ring and the second retaining ring are provided on the cover portion, which can help improve the dustproof performance of the oil filler cap. The mounting groove for mounting the sealing ring is provided on the screw-in portion, which helps improve the sealing effect of the oil filler port.

[0026] Another object of the present invention is to provide a vehicle, wherein the oil filling port of the vehicle is sealed by the fuel filler cap as described above.

[0027] The vehicle described in the present invention has the same beneficial effects as the aforementioned fuel filler cap relative to the prior art, and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a structural diagram of the fuel filler cap according to the first embodiment of the present invention;

[0030] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective;

[0031] Figure 3 For the Figure 2Cross-sectional view along line AA;

[0032] Figure 4 For the Figure 2 Cross-sectional view along the midline BB;

[0033] Figure 5 This is a structural diagram of the fuel filler cap body according to the first embodiment of the present invention;

[0034] Figure 6 for Figure 1 Schematic diagram of the structure from another perspective;

[0035] Figure 7 This is a structural diagram of the screw-in portion according to the first embodiment of the present invention;

[0036] Figure 8 for Figure 1 Schematic diagram of the structure from another perspective.

[0037] Description of reference numerals:

[0038] 1. Fuel filler cap body; 2. Bottom cover; 3. Sealing ring;

[0039] 101. Cover portion; 102. Screw-in portion; 103. Grip portion; 104. Logo mounting structure;

[0040] 1011, first retaining ring; 1012, second retaining ring;

[0041] 1021, first cavity; 1022, reinforcement structure; 10221, first reinforcement plate; 10222, second reinforcement plate; 10223, third reinforcement plate; 1023, mounting groove; 1024, first spiral groove; 1025, second spiral groove;

[0042] 1031, second cavity;

[0043] 201. Bottom cover body; 202. Connecting part. DETAILED DESCRIPTION

[0044] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0045] In the description of this utility model, it should be noted that the orientations or positional relationships shown in the accompanying drawings are merely for the purpose of facilitating the description of this utility model and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0046] Additionally, in the description of this utility model, unless otherwise explicitly defined, the terms "mounted," "connected," "connect," and "connector" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0047] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0048] Example 1

[0049] This embodiment relates to a fuel filler cap that can better take into account the usage requirements of vehicle manufacturers and customers, thereby helping to reduce production costs.

[0050] Based on the above design concept, an exemplary structure of the fuel filler cap of this embodiment is as follows: Figure 1 and Figure 2 As shown, in terms of overall structure, the fuel filler cap of this embodiment mainly includes a fuel filler cap body 1 and a bottom cover 2. The fuel filler cap body 1 and the bottom cover 2 are detachably connected. Among them, the bottom cover 2 can be used as an internal decorative cover.

[0051] Specifically, in the fuel filler cap of this embodiment, since the fuel filler cap body 1 and the bottom cover 2 are manufactured separately, the fuel filler cap body 1 and the bottom cover 2 can be made of materials of different colors during production. For example, the fuel filler cap body 1 can be produced in black, and the bottom cover 2 can be produced in white or black.

[0052] The fuel filler cap body 1 can be used alone to seal the oil filling port of the vehicle. The fuel filler cap body 1 and the bottom cover 2 can also be assembled together to seal the oil filling port. The bottom cover 2 is black, which is convenient for users to observe the emulsification degree of the oil and has a lower cost. The bottom cover 2 is white. Even if the oil emulsified substance is attached to the bottom cover 2, it will give customers a comfortable feeling because of the similar color.

[0053] It should be noted that, in the above embodiment, the fuel filler cap body 1 is described in black as an example. It should be understood that the fuel filler cap body 1 can be produced in other colors, such as white, in addition to black, and the bottom cover 2 can be produced in other colors as needed, in addition to black and white.

[0054] In terms of specific structure, the fuel filler cap body 1 of this embodiment includes a screw-in portion 102 and a cover portion 101, wherein the screw-in portion 102 is used to screw into the oil filling port, and the cover portion 101 is connected to one end of the screw-in portion 102 to cover the oil filling port. More specifically, as Figure 1As shown, the outer wall of the screw-in portion 102 is provided with a first spiral groove 1024 and a second spiral groove 1025, which can be screwed onto the existing oil filling port. The cover portion 101 is plate-shaped and covers the entire opening area of ​​the oil filling port, which can provide a good dustproof effect.

[0055] It should be noted here that, in a preferred embodiment, the cover portion 101 and the screw-in portion 102 are preferably injection molded separately, and then the two are connected together using a welding process, which helps to reduce processing costs. It should be understood that it is also possible to directly injection mold the cover portion 101 and the screw-in portion 102 into an integrated structure.

[0056] To facilitate assembly and disassembly, the bottom cover 2 of this embodiment includes a bottom cover body 201 and a connecting portion 202 disposed on one side of the bottom cover body 201. The connecting portion 202 is detachably connected to the screw-in portion 102, allowing the bottom cover body 201 to be positioned against the end of the screw-in portion 102 facing away from the cover portion 101. This arrangement allows the oil filler cap body 1 to be installed at the oil filling port when the bottom cover 2 is not needed. However, when the bottom cover 2 is needed, it can be installed on the oil filler cap body 1. The bottom cover 2 is in contact with the engine oil, and the white substance produced by the emulsified engine oil adheres to the white bottom cover 2, minimizing discomfort.

[0057] As a preferred embodiment, Figure 3 and Figure 4 As shown, a first cavity 1021 is provided in the screw-in portion 102 , a reinforcement structure 1022 is provided in the first cavity 1021 , and the screw-in portion 102 is detachably connected to the connecting portion 202 via the reinforcement structure 1022 .

[0058] In this way, the setting of the first cavity 1021 can better save the amount of raw materials and have a certain weight reduction effect, while the setting of the reinforcement structure 1022 can prevent the deterioration of structural strength due to weight reduction, thereby better taking into account the dual needs of weight reduction and structural strength. At the same time, the reinforcement structure 1022 and the connecting part 202 are detachably connected, which is also conducive to improving the reliability of fixing the bottom cover 2.

[0059] More specifically, you can combine Figure 8 As shown, the first cavity 1021 of this embodiment is a cavity provided through the screw-in portion 102 , which facilitates the arrangement of the reinforcement structure 1022 , is convenient for injection molding during production, and is also convenient for connection with the bottom cover 2 .

[0060] In order to facilitate the connection with the connecting part 202, as a preferred embodiment, a threaded hole is provided on the reinforcing structure 1022, and the axial direction of the threaded hole is consistent with the axial direction of the fuel filler cap, and the connecting part 202 on the bottom cover 2 specifically includes a stud provided on the bottom cover body 201, and the stud is screwed into the threaded hole.

[0061] In this configuration, the threaded hole is provided on the reinforcing structure 1022 and the connecting portion 202 is provided as a stud, which is beneficial to improving the reliability of the connection between the connecting portion 202 and the screw-in portion 102 and making the bottom cover 2 easy to assemble and disassemble.

[0062] like Figure 7 and Figure 8 As shown, as a preferred embodiment, the aforementioned reinforcement structure 1022 includes a first reinforcement plate 10221 and a second reinforcement plate 10222 arranged crosswise, and the threaded hole is provided at the intersection of the first reinforcement plate 10221 and the second reinforcement plate 10222.

[0063] It should be noted that the reinforcement structure 1022 includes a first reinforcement plate 10221 and a second reinforcement plate 10222 , and threaded holes are provided at the intersection of the first reinforcement plate 10221 and the second reinforcement plate 10222 , which can better improve the reliability of fixing the bottom cover 2 .

[0064] It should be understood that the first reinforcing plate 10221 and the second reinforcing plate 10222 in this embodiment are mainly used to prevent the overall structural strength of the fuel filler cap from being weakened due to the provision of the first cavity 1021. At the same time, the provision of the first reinforcing plate 10221 and the second reinforcing plate 10222 facilitates the fixing of the bottom cover 2 in this embodiment. Therefore, the number of reinforcing structures 1022 is not limited to two, and can be three, four, etc. The shape of the reinforcing structure 1022 is also not limited to Figure 8 The cross shape shown.

[0065] Still refer to Figure 7 and Figure 8 As shown, in the fuel filler cap of this embodiment, at least one side of the first reinforcing plate 10221 is connected to the inner wall of the first cavity 1021. It should be noted that in this embodiment, only at least one side of the second reinforcing plate 10222 may be connected to the inner wall of the first cavity 1021. It is also feasible to simultaneously connect at least one side of the first reinforcing plate 10221 to the inner wall of the first cavity 1021 and at least one side of the second reinforcing plate 10222 to the inner wall of the first cavity 1021.

[0066] As in this embodiment, both sides of the first reinforcing plate 10221 are connected to the inner wall of the first cavity 1021, and the first reinforcing plate 10221 is connected to the inner wall of the first cavity 1021. Figure 4 As shown, the cross-sectional area of ​​the second reinforcing plate 10222 gradually increases from the other end to the end close to the bottom cover body 201 , which helps to improve the reliability of the connection with the connecting portion 202 .

[0067] It should be understood that in this embodiment, the number and shape of the first reinforcing plates 10221 and the second reinforcing plates 10222 are merely an exemplary embodiment. In other embodiments, the number and shape of the first reinforcing plates 10221 and the second reinforcing plates 10222 can be changed according to actual needs.

[0068] like Figure 6 As shown, the reinforcement structure 1022 in this embodiment further includes a third reinforcement plate 10223. Preferably, the third reinforcement plate 10223 is disposed on the second retaining ring 1012 described below, and is disposed on the side of the second retaining ring 1012 facing the first cavity 1021. More specifically, the third reinforcement plate 10223 is formed by a portion of the second retaining ring 1012 protruding into the first cavity 1021, which facilitates processing, saves materials, and effectively ensures the overall structural strength of the fuel filler cap.

[0069] It should be understood that, preferably, when there are multiple third reinforcing plates 10223, the multiple third reinforcing plates 10223 are arranged at intervals in the circumferential direction of the second retaining ring 1012, and each third reinforcing plate 10223 extends along the circumference of the second retaining ring 1012. It should be understood that the number of third reinforcing plates 10223 can be, for example, four. In addition, the number of third reinforcing plates 10223 can also be one or three.

[0070] like Figure 5 As shown, as a preferred embodiment, the cover portion 101 is provided with a grip portion 103. The grip portion 103 has a certain thickness, which is approximately one-fifth of the diameter of the cover portion 101. The provision of the grip portion 103 facilitates the removal of the fuel filler cap by pinching the grip portion 103. In addition, the grip portion 103 has a certain structural strength and is not easily damaged during removal of the fuel filler cap.

[0071] Continue to refer to Figure 5 As shown, at least one of the grip portion 103 and the cover portion 101 is provided with a logo mounting structure 104. In this embodiment, the logo mounting structure 104 is provided on both the grip portion 103 and the cover portion 101. It should be understood that the logo mounting structure 104 may be provided only on the grip portion 103 or only on the cover portion 101.

[0072] The specific structure of the logo mounting structure 104 on the grip portion 103 is similar to that on the cover portion 101. Therefore, the logo mounting structure 104 on the grip portion 103 is used as an example for description. Specifically, the logo mounting structure 104 is a groove formed on the outer wall of the grip portion 103. The logo to be installed, such as the manufacturer, refueling logo, and specifications, can be embedded in the groove.

[0073] In actual installation, a through hole can be provided on the bottom wall of the groove, and a snap-fit ​​structure can be provided on the label to be snapped onto the edge of the through hole to improve the reliability of the label installation in the groove of the grip portion 103. The label installation structure 104 on the cover portion 101 is similar to the label installation structure 104 on the grip portion 103 and will not be described in detail here.

[0074] It should be noted that the shape and number of the grooves are not specifically limited in this embodiment. For example, in this embodiment, there are two logo mounting structures 104 on the grip portion 103, and the two logo mounting structures 104 have different shapes: one is oval and the other is rectangular. It should be understood that the shape of the grooves can also be other shapes, such as arc, direction, triangle, diamond, etc., and the number of grooves is not limited to two, and can also be other numbers, such as one, three, etc.

[0075] In this embodiment, a logo mounting structure 104 is provided on at least one of the grip portion 103 and the cover portion 101. Different manufacturers can share the fuel filler cap and only need to install their own logos. This makes the fuel filler cap highly versatile and can be used by multiple manufacturers, which helps reduce manufacturing costs.

[0076] like Figure 3 、 Figure 4 and Figure 6 As shown in , as a preferred embodiment, the gripping portion 103 is formed by a portion of the cover portion 101 protruding toward a side away from the screw-in portion 102, and a second cavity 1031 is provided in the gripping portion 103. The second cavity 1031 is connected to the first cavity 1021, and the reinforcement structure 1022 extends into the second cavity 1031.

[0077] As in this embodiment, the first reinforcing plate 10221 extends into the second cavity 1031. It should be understood that the second reinforcing plate 10222 may also extend into the second cavity 1031.

[0078] It should be noted that in this embodiment, the grip portion 103 is formed by a portion of the cover portion 101 that protrudes toward the side away from the screw-in portion 102, allowing the grip portion 103 and the cover portion 101 to be integrally injection molded, resulting in low processing costs and an attractive appearance. The second cavity 1031 is provided within the grip portion 103 to reduce material usage and further reduce weight. The reinforcement structure 1022 extends into the second cavity 1031 to better ensure structural strength requirements and prevent the overall structural strength from being weakened due to the provision of the second cavity 1031.

[0079] like Figure 1 、 Figure 3 and Figure 4As shown, as a preferred embodiment, the bottom cover body 201 is conical, the bottom of the bottom cover body 201, i.e., the large diameter end, is arranged at the end of the screw-in portion 102, and the top of the bottom cover body 201, i.e., the small diameter end, protrudes toward the side away from the screw-in portion 102.

[0080] In the above structure, the bottom cover body 201 is set to a conical shape. It is generally in contact with oil vapor and splashing oil. The conical design can facilitate the condensation of oil vapor. At the same time, the oil droplets formed by the condensation of oil vapor and the oil splashed on the bottom cover body 201 can also flow back into the oil tank smoothly under the guidance of the conical side wall. In addition, if the bottom cover 2 is black, it can be easier to observe the emulsification of the oil. Figure 3 and Figure 4 As shown, in order to improve the dust-proof performance, as a preferred embodiment, a first retaining ring 1011 and a second retaining ring 1012 are provided on the cover part 101, wherein the first retaining ring 1011 is arranged outside the second retaining ring 1012, and an annular gap is formed between the first retaining ring 1011 and the second retaining ring 1012, and the first retaining ring 1011 and the second retaining ring 1012 are both arranged on the side of the cover part 101 facing the screw-in part 102.

[0081] It should be noted that, in this embodiment, the first retaining ring 1011 and the second retaining ring 1012 are provided on the cover portion 101, which can help improve the dustproof performance of the fuel filler cap. Figure 4 In the left and right directions of the shown state, the first baffle ring 1011 and the second baffle ring 1012 extend to the left from the left end of the cover portion 101, and extend to a position roughly corresponding to the sealing ring 3 described below, which can better prevent external dust and impurities from entering the oil filling port, thereby helping to ensure the quality of the oil.

[0082] Continue to refer to Figure 4 As shown, as a preferred embodiment, the screw-in portion 102 is provided with a mounting groove 1023 near the cover portion 101. This groove 1023 is used to mount the sealing ring 3. When the fuel filler cap is in use, the screw-in portion 102 can be screwed into the oil filler port, and the sealing ring 3 is used to seal the gap between the screw-in portion 102 and the oil filler port. The provision of the mounting groove 1023 on the screw-in portion 102 for mounting the sealing ring 3 improves the sealing effect of the oil filler port. The sealing ring 3 can be made of an existing standard component, which helps reduce production costs.

[0083] The fuel filler cap of this embodiment includes a fuel filler cap body 1 and a bottom cover 2. The fuel filler cap body 1 and the bottom cover 2 are detachably connected together, which not only reduces production costs but also better meets customer usage needs.

[0084] Example 2

[0085] This embodiment relates to a vehicle, the oil filling port of the vehicle is sealed by the fuel filler cap as in the first embodiment.

[0086] Specifically, the vehicle can be installed with the fuel filler cap body 1 alone, or with the fuel filler cap body 1 and the bottom cover 2 assembled together. The fuel filler cap body 1 is made in black, and the bottom cover 2 is made in white, thereby achieving the dual purpose of meeting the manufacturer's need to reduce costs and providing customers with a sense of comfort, and having good practicality.

[0087] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A fuel filler cap, characterized by: It comprises a fuel filler cap body (1) and a bottom cover (2); The oil filler cap body (1) comprises a screw-in portion (102) and a cover portion (101), wherein the screw-in portion (102) is used to be screwed into the oil filling port, and the cover portion (101) is connected to one end of the screw-in portion (102) to cover the oil filling port; The bottom cover (2) comprises a bottom cover body (201) and a connecting portion (202) provided on one side of the bottom cover body (201); the connecting portion (202) is detachably connected to the screw-in portion (102) and can enable the bottom cover body (201) to be positioned at an end of the screw-in portion (102) away from the cover portion (101).

2. The fuel filler cap according to claim 1, characterized in that: A first cavity (1021) is provided in the screw-in portion (102), a reinforcement structure (1022) is provided in the first cavity (1021), and the reinforcement structure (1022) is detachably connected to the connecting portion (202).

3. The fuel filler cap according to claim 2, characterized in that: A threaded hole is provided on the reinforcing structure (1022), and the connecting portion (202) comprises a stud provided on the bottom cover body (201), and the stud is screwed into the threaded hole.

4. The fuel filler cap according to claim 3, characterized in that: The reinforcing structure (1022) comprises a first reinforcing plate (10221) and a second reinforcing plate (10222) arranged crosswise, and the threaded hole is provided at the intersection of the first reinforcing plate (10221) and the second reinforcing plate (10222); At least one side of the first reinforcing plate (10221) is connected to the inner wall of the first cavity (1021); and / or at least one side of the second reinforcing plate (10222) is connected to the inner wall of the first cavity (1021).

5. The fuel filler cap according to claim 3, characterized in that: A gripping portion (103) is provided on the cover portion (101), and a logo mounting structure (104) is provided on at least one of the gripping portion (103) and the cover portion (101).

6. The fuel filler cap according to claim 5, characterized in that: The gripping portion (103) is formed by a portion of the cover portion (101) protruding toward a side away from the screw-in portion (102); a second cavity (1031) is provided in the gripping portion (103); the second cavity (1031) is connected to the first cavity (1021); and the reinforcing structure (1022) extends into the second cavity (1031).

7. The fuel filler cap according to any one of claims 1 to 6, characterized in that: The bottom cover body (201) is conical, and the bottom of the bottom cover body (201) is arranged at the end of the screw-in portion (102), and the top of the bottom cover body (201) protrudes toward a side away from the screw-in portion (102).

8. The fuel filler cap according to claim 7, characterized in that: A first retaining ring (1011) and a second retaining ring (1012) are provided on one side of the cover portion (101) facing the screw-in portion (102); the first retaining ring (1011) is sleeved outside the second retaining ring (1012), and an annular gap is formed between the first retaining ring (1011) and the second retaining ring (1012).

9. The fuel filler cap according to claim 7, characterized in that: A mounting groove (1023) is provided at a portion of the screw-in portion (102) close to the cover portion (101), the mounting groove (1023) being used to mount a sealing ring (3), and the sealing ring (3) being used to seal the gap between the screw-in portion (102) and the oil filling port.

10. A vehicle, characterized in that: The oil filling port of the vehicle is sealed by the oil filler cap according to any one of claims 1 to 9.

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