A soft base for a refueling door of an automobile

Abstract

The utility model discloses a soft base for automobile oiling small door relates to automobile oiling small door soft base technical field, include: base hard glue, the lower extreme surface of base hard glue has the base soft glue and fuses, the inner wall one side fixedly connected with sealing cylinder of base hard glue, the outer surface both sides of sealing cylinder all are established with sealing groove, the inner wall both sides fixedly connected with sealing ring of base soft glue, two sealing rings are respectively in the inner wall clamping of two sealing grooves. The utility model discloses when base soft glue is pasted on base hard glue, two sealing rings on base soft glue are respectively clamped in two sealing grooves on sealing cylinder, make the gap between sealing cylinder and base soft glue form the labyrinth seal, prevent the oil sludge that dust mixes fuel forms and enter the contact surface position of base hard glue and base soft glue, avoid the edge of base soft glue and lift on base hard glue, peel, guarantee the connecting strength between base hard glue and base soft glue.

Description

Technical Field

[0001] This utility model relates to the technical field of soft base for automobile fuel filler door, specifically to a soft base for automobile fuel filler door. Background Technology

[0002] The fuel filler cap, also known as the fuel tank cap, is a key component of a car's fuel system. It is used to seal the fuel tank opening, ensuring the safe storage of fuel and facilitating refueling. However, car fuel filler caps are usually equipped with a flexible base. The flexible base can be elastically deformed to fit the curved surface of the car body and compensate for manufacturing tolerances. It not only prevents fuel and vapor from leaking out, but also blocks rainwater and mud from entering the fuel tank area, taking into account both safety and environmental protection.

[0003] Currently, most car fuel filler door swivel bases are composed of a hard rubber base and a soft rubber base. The connection between the hard and soft rubber bases is usually that the soft rubber is tightly fused to the hard rubber in a molten state. However, when a car is refueling, a small amount of dust and gasoline dripping from the fuel will fall onto the soft base. The dust mixes with the fuel to form sludge, which can penetrate into the interface between the hard and soft rubber, damaging their adhesive strength. Long-term accumulation will cause the sludge to solidify, generating stress when the vehicle vibrates or the temperature changes, accelerating the lifting and peeling of the soft rubber edges, eventually leading to detachment and inconvenience. Utility Model Content

[0004] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a soft base for a car fuel filler door, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a soft base for a car fuel filler door, comprising: a hard base, a soft base fused to the lower outer surface of the hard base, a sealing cylinder fixedly connected to one side of the inner wall of the hard base, sealing grooves formed on both sides of the outer surface of the sealing cylinder, sealing rings fixedly connected to both sides of the inner wall of the soft base, two sealing rings respectively engaging with the inner walls of the two sealing grooves, a fixing ear fixedly connected to the outer surface of the hard base, an mounting ear fixedly connected to the outer surface of the soft base, a rotating frame rotatably connected to one side of the mounting ear, an mounting cavity formed at one end of the rotating frame, a fixing rod slidably connected to the inner wall of the mounting cavity, and one side of the fixing rod engaging with the fixing ear.

[0006] As a further preferred embodiment of this technical solution, one end of the fixing rod is fixedly connected to a spring, and one end of the spring is fixedly connected to one side of the inner wall of the mounting cavity.

[0007] As a further preferred embodiment of this technical solution, the upper end of the hard rubber base is provided with mounting holes on all four sides, and the four mounting holes are distributed in a rectangular array.

[0008] As a further preferred embodiment of this technical solution, a sealing ring is fitted onto the upper outer surface of the hard rubber base.

[0009] As a further preferred embodiment of this technical solution, an oil pipe hole is provided through one side of the soft rubber base, and a rubber protective ring is fixedly connected to the inner wall of the oil pipe hole.

[0010] As a further preferred embodiment of this technical solution, a hinge mounting cylinder is fixedly connected to one side of the hard rubber base.

[0011] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0012] 1. In this utility model, when the soft rubber base is attached to the hard rubber base, the two sealing rings on the soft rubber base are respectively engaged in the two sealing grooves on the sealing cylinder, so that the gap between the sealing cylinder and the soft rubber base forms a labyrinth seal; this prevents dust and fuel from mixing and forming sludge that enters the contact surface between the hard rubber base and the soft rubber base, avoids the edge of the soft rubber base from lifting or peeling off the hard rubber base, and ensures the connection strength between the hard rubber base and the soft rubber base.

[0013] 2. This utility model uses a rotating fixing rod to snap one side of the fixing rod onto the fixing ear, further strengthening the connection between the hard rubber base and the soft rubber base; and when the oil gun is not aligned with the oil inlet of the oil tank during refueling and accidentally pokes the bottom of the soft rubber base, the tension of the spring will offset the force of the poke into the soft rubber base, preventing the soft rubber base from falling off the hard rubber base. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an exploded view of the connection relationship between the hard rubber base and the soft rubber base in this utility model;

[0017] Figure 3 This is a three-dimensional structural diagram of the base soft rubber and sealing ring in this utility model;

[0018] Figure 4 This is a cross-sectional structural diagram showing the connection relationship between the rotating frame and the fixed rod in this utility model.

[0019] 1. Hard rubber base; 11. Soft rubber base; 12. Hinge mounting sleeve; 13. Mounting hole; 14. Sealing ring; 15. Oil pipe hole; 16. Rubber protective ring; 2. Sealing sleeve; 21. Sealing groove; 22. Sealing ring; 3. Mounting ear; 31. Rotating bracket; 32. Fixing ear; 33. Fixing rod; 34. Spring; 35. Mounting cavity. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0021] The present invention will be further described below with reference to the embodiments.

[0022] This utility model provides a technical solution: such as Figure 1 - Figure 4 As shown, in this embodiment, a soft base for a car fuel filler door includes: a hard base 1, a soft base 11 fused to the lower outer surface of the hard base 1, a sealing cylinder 2 fixedly connected to one side of the inner wall of the hard base 1, sealing grooves 21 formed on both sides of the outer surface of the sealing cylinder 2, sealing rings 22 fixedly connected to both sides of the inner wall of the soft base 11, the two sealing rings 22 respectively engaging with the inner walls of the two sealing grooves 21, a fixing ear 32 fixedly connected to the outer surface of the hard base 1, an mounting ear 3 fixedly connected to the outer surface of the soft base 11, a rotating frame 31 rotatably connected to one side of the mounting ear 3, an mounting cavity 35 formed at one end of the rotating frame 31, a fixing rod 33 slidably connected to the inner wall of the mounting cavity 35, and one side of the fixing rod 33 engaging with the fixing ear 32.

[0023] When the soft base 11 is attached to the hard base 1, the two sealing rings 22 on the soft base 11 are respectively engaged in the two sealing grooves 21 on the sealing cylinder 2, so that the gap between the sealing cylinder 2 and the soft base 11 forms a labyrinth seal; this prevents dust mixed with fuel from forming sludge that enters the contact surface between the hard base 1 and the soft base 11, and avoids the edge of the soft base 11 from lifting or peeling off from the hard base 1, thus ensuring the connection strength between the hard base 1 and the soft base 11; by rotating the fixing rod 33, one side of the fixing rod 33 is engaged in the fixing ear 32, further strengthening the connection strength between the hard base 1 and the soft base 11.

[0024] It should be noted that: multiple fixing ears 32 are fixedly connected to the outer surface of the hard rubber 1 of the base, and multiple mounting ears 3, rotating frame 31 and fixing rod 33 are installed on the soft rubber 11 of the base, and the multiple fixing rods 33 are respectively snapped onto the multiple fixing ears 32.

[0025] like Figure 4 As shown, one end of the fixing rod 33 is fixedly connected to a spring 34, and one end of the spring 34 is fixedly connected to one side of the inner wall of the mounting cavity 35. When the oil gun is not aligned with the oil inlet of the oil tank during oil filling, it accidentally pokes the bottom of the soft rubber 11 of the base. The tension of the spring 34 will offset the force of the soft rubber 11 of the base, preventing the soft rubber 11 of the base from falling off the hard rubber 1 of the base.

[0026] like Figure 1 and Figure 2 As shown, mounting holes 13 are provided through the four sides of the upper end of the hard base 1, and the four mounting holes 13 are distributed in a rectangular array; the mounting holes 13 are used to install the soft base composed of the hard base 1 and the soft base 11 on the car frame to seal the fuel tank position of the car.

[0027] like Figure 1 - Figure 3 As shown, a sealing ring 14 is fitted onto the upper outer surface of the base hard rubber 1; the sealing ring 14 is used to seal the gap between the fuel filler door and the base hard rubber 1, and can buffer the force generated when the door is closed.

[0028] like Figure 1 and Figure 3 As shown, an oil pipe hole 15 is provided through one side of the soft rubber 11 of the base, and a rubber protective ring 16 is fixedly connected to the inner wall of the oil pipe hole 15; the oil inlet pipe of the oil tank is passed through the oil pipe hole 15, and the rubber protective ring 16 seals the oil pipe hole 15 and the oil inlet pipe position.

[0029] like Figure 1 and Figure 2 As shown, a hinge mounting cylinder 12 is fixedly connected to one side of the base hard plastic 1; the hinge mounting cylinder 12 is used to install the hinge, and the hinge is used to install the fuel tank door.

[0030] This utility model provides a flexible base for a car fuel filler door, and its working principle is as follows:

[0031] When assembling the soft base of the car fuel filler door, firstly, when the upper end of the soft base 11 is attached to the lower end of the hard base 1, the two sealing rings 22 on the soft base 11 are respectively engaged in the two sealing grooves 21 on the sealing cylinder 2, so that the gap between the sealing cylinder 2 and the soft base 11 forms a labyrinth seal. Since the soft base 11 is in a molten state, the hard base 1 and the soft base 11 are tightly fused together. Then, the fixing rod 33 is attached, and one side of the fixing rod 33 is engaged in the fixing ear 32 to further strengthen the connection strength between the hard base 1 and the soft base 11, thereby assembling the hard base 1 and the soft base 11 into a soft base, which can then be installed in the car for use.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A flexible base for a car fuel filler door, characterized in that, include: The base is made of hard plastic (1), and the lower outer surface of the base is fused with soft plastic (11). A sealing cylinder (2) is fixedly connected to one side of the inner wall of the base is made of hard plastic (1). A sealing groove (21) is opened on both sides of the outer surface of the sealing cylinder (2). A sealing ring (22) is fixedly connected to both sides of the inner wall of the soft plastic (11). The two sealing rings (22) are respectively engaged in the inner wall of the two sealing grooves (21). A fixing ear (32) is fixedly connected to the outer surface of the base is made of hard plastic (1). An installation ear (3) is fixedly connected to the outer surface of the soft plastic (11). A rotating frame (31) is rotatably connected to one side of the installation ear (3). An installation cavity (35) is opened at one end of the rotating frame (31). A fixing rod (33) is slidably connected to the inner wall of the installation cavity (35). One side of the fixing rod (33) is engaged in the fixing ear (32).

2. The flexible base for a car fuel filler door according to claim 1, characterized in that: One end of the fixing rod (33) is fixedly connected to a spring (34), and one end of the spring (34) is fixedly connected to one side of the inner wall of the mounting cavity (35).

3. The flexible base for a car fuel filler door according to claim 1, characterized in that: The base hard plastic (1) has mounting holes (13) through the four sides of its upper end, and the four mounting holes (13) are distributed in a rectangular array.

4. A flexible base for a car fuel filler door according to claim 1, characterized in that: A sealing ring (14) is fitted onto the upper outer surface of the hard rubber base (1).

5. A flexible base for a car fuel filler door according to claim 1, characterized in that: An oil pipe hole (15) is provided through one side of the base soft rubber (11), and a rubber protective ring (16) is fixedly connected to the inner wall of the oil pipe hole (15).

6. A flexible base for a car fuel filler door according to claim 1, characterized in that: A hinge mounting cylinder (12) is fixedly connected to one side of the base hard plastic (1).

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