WO2023115772A1 - Loss prevention rope for vehicle fuel tank cap, and fuel tank - Google Patents

Abstract

The present application relates to a loss prevention rope for a vehicle fuel tank cap, and a fuel tank. The loss prevention rope is a high-elasticity flexible member and comprises two O-rings and a connecting pull cord, wherein the two O-rings are connected to each other by means of the connecting pull cord; and each O-ring is of a non-closed ring structure, and the O-ring forms a closed ring by means of an anti-release locking structure. The present application has a simple structure, a clever design, a long service life, high universality and is suitable for fuel tank caps of different vehicle types, and is conducive to thoroughly solving the dilemma of there being no parts available for replacement when a factory-original loss prevention rope is damaged, thereby greatly saving on vehicle costs.

Description

An anti-lost rope for a fuel tank cap and a fuel tank for a vehicle

related application

This application claims the priority of the Chinese utility model patent application: 2021232825662, filed on December 24, 2021, entitled "A Universal Fuel Tank Cap Anti-lost Rope".

technical field

The present application relates to an anti-lost rope, in particular to an anti-lost rope for a vehicle fuel tank cap and a fuel tank with the anti-lost rope.

Background technique

Existing automobile oil tank cap anti-lost rope is just a kind of plastic stay cord, and one end connects inner fuel tank cap, and one end connects outer fuel tank cap. But this anti-lost rope is made of plastic, because the stay rope is twisted together with the inner fuel tank cap when refueling, and the plastic will harden and become brittle after a long time, causing it to break easily. If you don’t use the anti-lost rope, when refueling, the inner fuel tank cap often lacks a reasonable placement after it is removed from the fuel tank. Sometimes it can only be placed on the roof or the trunk, which will easily cause the inner fuel tank cap to be stained with dust. Or dirty, and if dust or dirt enters the fuel tank, it will increase the risk of failure of the car's fuel system, and if the inner fuel tank cap is placed on the car body, it will easily cause damage to the car's paint surface.

In addition, the existing anti-lost ropes for fuel tank caps are generally dedicated to special cars, and there are many types of models. As a result, repair shops are reluctant to prepare spare parts. After the anti-lost ropes on vehicles are damaged, it is difficult to replace them in time, resulting in easy loss of fuel tank caps.

Contents of the invention

In order to solve the problems existing in the above-mentioned prior art, the application provides an anti-lost rope for a vehicle fuel tank cap and a fuel tank with the anti-lost rope, specifically an integrated high-low temperature resistant and oil-resistant anti-lost rope made of high elastic rubber. Lost rope, strong versatility and long service life.

The concrete technical scheme of this application is as follows:

An anti-lost rope for a fuel tank cap of a vehicle, the anti-lost rope is made of flexible material with elasticity, the anti-lost rope includes two O-rings and connecting pull wires, each of the O-rings has an opening Non-closed-loop structure, the opening of the O-ring is provided with an anti-off locking structure, which is used to close the opening to form a closed O-ring; the first end and the second end of the connecting pull wire are respectively connected to two the non-end region of the O-ring.

In a preferred implementation manner, the anti-disengagement locking structure includes an anti-disengagement buckle and a plurality of anti-disconnection buckles; the anti-disconnection buckle is used to lock to any one of the anti-disconnection.

In another preferred implementation manner, the opening of the O-ring has a first end and a second end; Describe the second end.

In another preferred implementation manner, the anti-disconnection is a solid block structure, the anti-disconnection buckle is an elastic ring structure, and the diameter of the anti-disconnection is larger than the inner diameter of the anti-disconnection buckle.

In another preferred implementation manner, the anti-disconnection is a spherical structure.

In another preferred implementation manner, a plurality of anti-disjoint joints are evenly distributed along the O-ring between the second end and the connecting pull wire.

In another preferred implementation manner, the main body of the O-ring is a first elastic rope body, the anti-joint is an elastic sphere, the diameter of the first elastic rope body is 2.5-3.5mm, and the elastic sphere The diameter is 4-6mm, and the connecting stay wire adopts an S-shaped second elastic rope body. The size of the S-shaped second elastic rope body in a relaxed state is 50-60mm, and the size in a straightened state is 90-100mm.

In another preferred implementation manner, the diameter of the first elastic rope is 3mm, the diameter of the elastic sphere is 5mm, and the size of the S-shaped second elastic rope in a relaxed state is 53-54mm , the size in the straightened state is 95-97mm.

In another preferred implementation manner, the two O-rings and the connecting pull wire of the anti-lost rope are integrally formed.

The present application also provides a fuel tank. The fuel tank includes a fuel tank body, an outer fuel tank cap and an inner fuel tank cap. The fuel tank body has a fuel filler, and the inner fuel tank cap is installed at the fuel filler. The cover is connected to the inner side of the outer fuel tank cap through the vehicle fuel tank cap anti-lost rope, and the O-ring 1 of the fuel tank cap anti-lost rope is sleeved on the inner fuel tank cap to lock the inner fuel tank cap. The type ring is used for locking or sleeved on the outer fuel tank cap or the hinge connecting the outer fuel tank cap and the vehicle body.

The beneficial effect of this application:

The anti-lost rope for the fuel tank cap of the application has the advantages of simple structure, ingenious design, long service life and strong versatility. This application can realize the closed-loop structure of different sizes of O-rings through the anti-lost locking structure, making it suitable for fuel tank caps of different models, which is conducive to completely solving the dilemma of the original anti-lost rope being damaged and having no accessories to replace, and avoiding damage to the anti-lost rope Finally, the fuel tank cap is lost, or the fuel tank cap is placed on the roof or the trunk to damage the paint surface and cause fuel system failures, which indirectly saves a lot of car costs for the car owner. In addition, this application adopts the double O-shaped structure design, which can greatly reduce the force of the anti-lost rope when the fuel tank cap is twisted, and the anti-lost rope is resistant to high and low temperature, oil, and is not easy to be damaged, which greatly prolongs the service life of the anti-lost rope.

Description of drawings

Fig. 1 is the three-dimensional schematic diagram of the anti-lost rope of the vehicle fuel tank cap of the present application;

Fig. 2 is the structural representation of the anti-lost rope of the vehicle fuel tank cap of the present application;

Fig. 3 is a schematic structural diagram of a fuel tank equipped with a vehicle fuel tank cap anti-lost rope according to the present application.

Among them: 1-O-ring, 1.1-first end, 1.2-second end, 1.3-anti-disconnection sleeve, 1.4-anti-disconnection, 2-connection cable; 3-outer fuel tank cap, 4, inner fuel tank cap , 5-refueling port, 6-hinge, 7-anti-lost rope.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments.

The orientation terms such as up, down, left, right, front and rear in this application document are established based on the positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly, so this should not be understood as limiting the scope of protection.

In this application, the terms "installation", "connection", "connection", "connection", "fixation" and so on should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integrated Connection can also be mechanical connection, electrical connection or mutual communication, direct connection or indirect connection through an intermediary, internal communication between two components, or two components interaction relationship. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

The "anti-disconnection" mentioned in this application refers to an entity of any shape that can be inserted into the "anti-disconnection buckle" and locked between the two through the elastic force of the anti-disconnection buckle. It is spherical, ellipsoidal, square, etc.

This embodiment describes an anti-lost rope for the fuel tank cap of a vehicle, which can be applied to the fuel tank cap of any vehicle type.

The anti-lost rope of this embodiment adopts a double O-shaped structure, as shown in Figure 1 and Figure 2, the anti-lost rope includes two O-rings 1 and a connecting stay wire 2, and the two O-rings 1 are connected through a connecting stay wire 2 . The two O-rings 1 are closed-loop structures, and each O-ring has a first end 1.1 and a second end 1.2.

The fuel tank of existing vehicles generally includes a fuel tank body, an outer fuel tank cap 3 and an inner fuel tank cap 4, the fuel tank body has a fuel filler 5, and the inner fuel tank cap 4 is installed at the fuel filler 5 for sealing the fuel filler 5, and the outer The fuel tank cap 3 is used to cover the outside of the inner fuel tank cap 4, and the outer surface of the outer fuel tank cap 3 is substantially flush with the car body to keep the car body beautiful. As shown in Figure 3, when the anti-lost rope 7 of the present invention is used, one O-ring 1 is sleeved on the inner fuel tank cap 4 to lock the inner fuel tank cap 4, and the other O-ring is used for locking or sleeved on the outside The hinge 6 where the fuel tank cap 3 or the outer fuel tank cap 3 is connected to the vehicle body. Two parts of the anti-loosening locking structure are respectively arranged on the first end part 1.1 and the second end part 1.2. Each O-ring 1 forms a closed loop through an anti-off locking structure. The non-closed-loop structure is convenient for the O-ring 1 to be sleeved on the inner fuel tank cap 4, the outer fuel tank cap 3 or the outer fuel tank cap hinge 6. The connecting part of the connecting pull wire 2 and the O-ring 1 is in the non-end area of the O-ring 1 , and the two ends of the O-ring 1 are provided with an anti-loosening locking structure.

Preferably, the anti-disengagement locking structure includes an anti-disengagement buckle 1.3 and an anti-disconnection 1.4. The anti-disconnection buckle 1.3 is arranged on the first end 1.1, on the O-ring 1, along the main structure of the O-ring 1, on the Between the second end 1.2 and the connecting pull wire 2, a plurality of anti-disengagement joints 1.4 are evenly distributed, and the outermost anti-disconnection 1.4 is placed on the top of the second end 1.2.

After the O-ring 1 is set on the inner fuel tank cap 4, the outer fuel tank cap 3 or the hinge 6 connecting the outer fuel tank cap 3 with the vehicle body, the second end 1.2 passes through the anti-disconnection sleeve buckle 1.3, and the anti-disconnection sleeve buckle 1.3 is buckled and connected with the anti-disconnection 1.4 at a suitable position, so that the O-ring 1 forms a closed loop. The size of the closed loop of the O-ring 1 can be adjusted freely through multiple anti-disconnection 1.4, so as to adapt to fuel tank caps of different models. When refueling and twisting the inner fuel tank cap 4, the O-ring 1 can prevent the connecting stay wire 2 from being stressed together with the inner fuel tank cap 4. After the inner fuel tank cap 4 is unscrewed, the inner fuel tank cap 4 can be hung on the outer fuel tank cap 3 or connected with the outer fuel tank cap 4. On the hinge 6 of the outer fuel tank cover.

Preferably, the anti-lost rope is an integrated high-elastic flexible part made of high-elastic rubber, which is resistant to high and low temperature, oil, and is not easily damaged.

In a preferred implementation manner, the main body of the O-ring is an elastic rope body, and each anti-disconnection uniformly distributed on it is a solid elastic sphere. The diameter of the elastic rope is 2.5-3.5 mm, most preferably 3 mm; the anti-disconnection adopts a solid elastic sphere with a diameter of 4-6 mm, most preferably, the diameter of the sphere is 5 mm. The ring structure surrounded by the O-ring itself has a diameter of 70-80mm, most preferably 73-76mm. After a large number of experimental tests and repeated comparisons, the inventor found that the O-ring structure designed with the above dimensions can be well fixed and installed in the fuel tank cap grooves of many types of automobile fuel tanks, meeting the installation needs of fuel tank caps of many types of automobile fuel tanks. Realize the adaptation to a variety of automobile fuel tanks.

Preferably, the connecting stay wire 2 is made of an S-shaped elastic rope body, the size of the S-shaped elastic rope body in a relaxed state is preferably 50-60mm, most preferably 53-54mm, and the S-shaped elastic rope body is in a straightened state. The lower dimension is preferably 90-100mm, most preferably 95-97mm. The installation size of the above-mentioned connecting cable 2 is the optimal size obtained according to the installation test of various models. If the length of the cable is too short, the versatility will be greatly reduced, and if it is too long, it will be redundant and cumbersome, affecting the appearance and user experience. Instead, the elastic cable is used , especially the elastic pull cords of the above size not only meet the installation needs of various car models, but also do not affect the appearance.

Although the principles of the present application have been described in detail above in conjunction with the preferred embodiments of the present application, those skilled in the art should understand that the above embodiments are only explanations of the exemplary implementations of the present application, and are not intended to limit the scope of the present application. The details in the embodiments do not constitute a limitation to the scope of the application. Without departing from the spirit and scope of the application, any obvious changes based on the technical solutions of the application, such as equivalent transformations and simple replacements, all fall within the scope of the application. within the scope of protection.

Claims (10)

An anti-lost rope for a fuel tank cap for a vehicle, characterized in that the anti-lost rope is made of flexible material with elasticity, and the anti-lost rope includes two O-rings (1) and connecting pull wires (2), each The O-ring (1) is a non-closed ring structure with an opening, and the opening of the O-ring (1) is provided with an anti-off locking structure for closing the opening to form a closed O-ring (1 ); the first end and the second end of the connecting stay wire (2) are respectively connected to the non-end regions of the two O-rings (1). The anti-lost rope for the fuel tank cap of a vehicle according to claim 1, wherein the anti-loosening locking structure includes an anti-disengagement buckle (1.3) and a plurality of anti-disengagement buckles (1.4), and the anti-disengagement buckle ( 1.3) For locking to any one of the anti-disengagement (1.4). The vehicle fuel tank cap anti-lost rope according to claim 2, characterized in that, the opening of the O-ring (1) has a first end (1.1) and a second end (1.2); The disengagement buckle (1.3) is arranged on the first end (1.1), and the anti-disconnection (1.4) is arranged on the second end (1.2). The vehicle fuel tank cap anti-lost rope according to claim 2, characterized in that, the anti-disconnection is a solid block structure, the anti-disconnection sleeve (1.3) is an elastic ring structure, and the diameter of the anti-disconnection is It is larger than the inner diameter of the anti-disconnection buckle (1.3). The anti-lost rope for the fuel tank cap of a vehicle according to claim 4, wherein the anti-disconnection is a spherical structure. The vehicle fuel tank cap anti-lost rope according to claim 2, characterized in that, a plurality of anti-disconnection (1.4) are evenly distributed on the second end (1.2) along the O-ring (1) between the connecting pull wires (2). The anti-lost rope for a fuel tank cap for a vehicle according to claim 2, wherein the main body of the O-ring (1) is a first elastic rope body, the anti-disconnection is an elastic sphere, and the first elastic rope The diameter of the body is 2.5-3.5mm, the diameter of the elastic sphere is 4-6mm, the connecting stay wire (2) adopts an S-shaped second elastic rope body, and the S-shaped second elastic rope body is in a relaxed state The size is 50-60mm in the lower state and 90-100mm in the straightened state. The fuel tank cap anti-lost rope according to claim 7, wherein the diameter of the first elastic rope body is 3mm, the diameter of the elastic sphere is 5mm, and the S-shaped second elastic rope body It measures 53-54mm in the relaxed state and 95-97mm in the straightened state. The anti-lost rope for the fuel tank cap of a vehicle according to claim 4, wherein the two O-rings (1) and the connecting pull wire (2) of the anti-lost rope are integrally formed. A fuel tank, characterized in that the fuel tank comprises a fuel tank body, an outer fuel tank cap (3) and an inner fuel tank cap (4), the fuel tank body has a filler port (5), and the inner fuel tank cap is installed on the At the oil filler port (5), the inner fuel tank cap (4) is connected to the inner side of the outer fuel tank cap (3) through the vehicle fuel tank cap anti-lost rope according to claim 1, and the fuel tank cap anti-lost rope O-ring 1 is sleeved on the inner fuel tank cap (4) to lock the inner fuel tank cap (4), and the other O-ring is used to lock or sleeve on the outer fuel tank cap (3) or the outer fuel tank cap (3) and The hinge (6) where the car body is connected.

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