A dustproof sealing device for an oil tank cap

Abstract

The utility model discloses a dustproof sealing device of oil tank cover, and the device comprises an oil tank, an oil inlet is equipped on the oil tank, a sealing cover is equipped on the oil inlet, a sealing ring is equipped at the lower end of the sealing cover, a sealing ring is equipped on the inner wall of the oil inlet, thread holes are equipped at the joint of the sealing cover and the oil inlet, and bolts are equipped in the thread holes. The utility model has the advantages that the sealing ring at the lower end of the sealing cover and the sealing ring on the inner wall of the oil inlet form a double sealing structure. When the sealing cover is fixed with the oil inlet through the bolts, the sealing ring and the sealing ring are closely attached, compared with the traditional single sealing ring or thread sealing, fuel leakage can be more effectively prevented. Especially, the sealing ring adopts an annular elastic metal sheet and the cross section is in a wavy shape, can adapt to certain deformation, under the conditions of long-term use, vibration and the like, still can keep good sealing effect, solve the problem that the traditional sealing mode leads to the sealing problem of not being strict due to the wear and aging of the sealing ring and the loosening of the thread.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, specifically relating to a dustproof sealing device for a fuel tank cap. Background Technology

[0002] Currently, fuel tank caps in vehicles and machinery often use simple sealing rings or threaded connections for sealing. However, this traditional sealing method is prone to wear and aging of the sealing rings after prolonged use, and the threads may loosen due to vibration or other reasons. This results in a poor seal between the fuel tank cap and the fuel inlet, leading to fuel leakage. This not only wastes energy but also poses safety hazards and seriously affects the normal operation of the fuel tank.

[0003] Therefore, there is an urgent need to provide a dustproof sealing device for fuel tank caps to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide a dustproof sealing device for a fuel tank cap, so as to solve the technical problem of poor sealing between the fuel tank cap and the fuel inlet.

[0005] To solve the above-mentioned technical problems, this utility model provides a dustproof sealing device for a fuel tank cover, comprising: a fuel tank, an oil inlet on the fuel tank, a sealing cover on the oil inlet, a sealing ring at the lower end of the sealing cover, a sealing ring on the inner wall of the oil inlet, and threaded holes at the connection between the sealing cover and the oil inlet, with bolts installed in the threaded holes.

[0006] As further explained, the sealing cap is provided with a handle.

[0007] As further explained, the thickness of the sealing ring is slightly greater than the thickness of the sealing ring.

[0008] As further explained, the sealing ring is a circular sealing rubber, and the sealing ring is an annular elastic metal sheet with a wavy cross-section.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. The sealing ring at the lower end of the sealing cap and the sealing ring on the inner wall of the oil inlet form a double sealing structure. When the sealing cap is fixed to the oil inlet with bolts, the sealing ring and sealing ring fit tightly together, which can more effectively prevent fuel leakage compared to traditional single sealing rings or threaded seals. In particular, the sealing ring is made of annular elastic metal sheet with a wavy cross-section, which can adapt to certain deformations. Even under long-term use and vibration, it can still maintain a good sealing effect, solving the problem of poor sealing caused by wear and aging of the sealing ring and loosening of the threads in traditional sealing methods, reducing energy waste and eliminating safety hazards.

[0011] 2. The handle on the sealing cap makes it easy for operators to open and close the oil sealing cap, making refueling and other operations more convenient and improving the ease of use and user experience.

[0012] 3. The thickness of the sealing ring is slightly greater than that of the sealing ring. When the sealing cover is connected to the oil inlet, the sealing structure of the two can fit more fully and tightly, further enhancing the sealing effect and ensuring the sealing performance at the oil inlet.

[0013] 4. The sealing ring is made of circular sealing rubber, which has good elasticity and sealing performance; the sealing ring is made of annular elastic metal sheet, which combines elasticity and durability. Compared with traditional single rubber sealing rings, this combination performs better in terms of wear resistance and aging resistance, extending the service life of the oil tank cap dustproof sealing device and ensuring the long-term stable use of the oil tank.

[0014] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a preferred three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a preferred cross-sectional view of the present invention.

[0019] In the picture:

[0020] 1. Oil tank, 2. Oil inlet, 3. Sealing cap, 4. Sealing ring, 5. Sealing ring, 6. Threaded hole, 7. Bolt, 8. Handle. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Reference Figure 1-2 A dustproof sealing device for a fuel tank cap includes: a fuel tank 1, a fuel inlet 2 on the fuel tank 1, a sealing cap 3 on the fuel inlet 2, a sealing ring 4 at the lower end of the sealing cap 3, a sealing ring 5 on the inner wall of the fuel inlet 2, and threaded holes 6 at the connection between the sealing cap 3 and the fuel inlet 2, with bolts 7 installed in the threaded holes 6. The sealing ring 4 at the lower end of the sealing cap 3 and the sealing ring 5 on the inner wall of the fuel inlet 2 form a double sealing structure. When the sealing cap 3 is fixed to the fuel inlet 2 by the bolts 7, the sealing ring 4 and the sealing ring 5 fit tightly together, which can more effectively prevent fuel leakage compared to the traditional single sealing ring 4 or threaded seal. This solves the problem of poor sealing caused by wear and aging of the sealing ring 4 and loosening of the threads in traditional sealing methods, reducing energy waste and eliminating safety hazards.

[0023] like Figure 1-2 As shown, the sealing cap 3 is equipped with a handle 8. This facilitates the opening and closing of the sealing cap 3 by operators, making operations such as refueling more convenient and improving ease of use and user experience.

[0024] like Figure 2 As shown, the thickness of the sealing ring 5 is slightly greater than that of the sealing ring 4. When the sealing cover 3 is connected to the oil inlet 2, the sealing structure of the two can fit together more fully and tightly, further enhancing the sealing effect and ensuring the sealing performance at the oil inlet 2.

[0025] like Figure 2 As shown, the sealing ring 4 is a circular sealing rubber, and the sealing ring 5 is an annular elastic metal sheet with a wavy cross-section. The sealing ring 4, made of circular sealing rubber, has good elasticity and sealing performance; the sealing ring 5, made of annular elastic metal sheet, combines elasticity and durability, and its wavy cross-section can adapt to certain deformations. Even under long-term use and vibration, it can still maintain a good sealing effect. Compared with the traditional single rubber sealing ring 4, this combination performs better in terms of wear resistance and aging resistance, extending the service life of the dustproof sealing device of the sealing cover 3 and ensuring the long-term stable use of the oil tank 1.

[0026] All components selected in this application (parts whose specific structures are not described) are general standard parts or parts known to those skilled in the art, and their structures and principles can be obtained by those skilled in the art through technical manuals.

[0027] This knowledge can be obtained through conventional experimental methods.

[0028] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0029] In addition, the functional units in the various embodiments of this utility model can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0030] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A dustproof sealing device for a fuel tank cap, characterized in that, include: The oil tank (1) is provided with an oil inlet (2), the oil inlet (2) is provided with a sealing cover (3), the lower end of the sealing cover (3) is provided with a sealing ring (4), the inner wall of the oil inlet (2) is provided with a sealing ring (5), the connection between the sealing cover (3) and the oil inlet (2) is provided with a threaded hole (6), and the threaded hole (6) is provided with a bolt (7).

2. The dustproof sealing device for a fuel tank cap as described in claim 1, characterized in that, The sealing cap (3) is provided with a handle (8).

3. The dustproof sealing device for a fuel tank cap as described in claim 1, characterized in that, The thickness of the sealing ring (5) is slightly greater than the thickness of the sealing ring (4).

4. The dustproof sealing device for a fuel tank cap as described in claim 1, characterized in that, The sealing ring (4) is a circular sealing rubber, and the sealing ring (5) is an annular elastic metal sheet with a wavy cross section.

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