Dustproof automobile fuel tank cap

Abstract

The utility model discloses a dustproof automobile fuel tank cap which comprises an oil inlet pipe, the bottom end of the oil inlet pipe is fixedly connected with a bottom cover, the bottom end of the bottom cover is fixedly connected with a concave cover, the bottom end of the concave cover is provided with a through hole, a limiting gasket is attached to the inner wall of the oil inlet pipe in a surrounding mode, and internal threads are arranged at the top end of the limiting gasket. The oil inlet pipe is connected with the automobile oil tank, so that oil filling is facilitated, oil is guided into the oil tank through the through hole, the connecting cover is in threaded connection with the oil inlet pipe through matching of the internal threads and the external threads, the oil inlet pipe is sealed, and the bottom end of the connecting cover is limited through the limiting gasket; dust adhering to the surface of the connecting cover is prevented from falling into the oil tank as much as possible, dust adhering to the surface of the inner wall of the oil inlet pipe can be scraped out and cleaned through the scraping piece in the rotating process of loosening and tightening the connecting cover, an opening in the top end of the inner wall of the oil inlet pipe is sealed through the dustproof gasket, oil volatilization and dust entering are prevented, and therefore the optimal dustproof effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile fuel tank covers, in particular to a dustproof automobile fuel tank cover. Background Art

[0002] A car's fuel tank cap is the tank that stores gasoline, typically located at the rear or side of the vehicle. Its primary function is to control fuel addition and seal the tank opening to prevent leaks. The cap typically includes a locking mechanism to prevent accidental opening while driving. To add fuel, the driver can open the cap by pressing a button or unlocking a handle on the cap, then insert the fuel filler gun into the tank opening to refuel.

[0003] When the existing fuel tank cap of a car is loosened during refueling, dust floating in the air is easily adsorbed on the surface of the fuel tank cap. When the fuel tank cap is installed after refueling, the dust on the surface of the fuel tank cap is easily brought into the fuel tank, thereby failing to achieve the best dust-proof effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a dust-proof automobile fuel tank cover.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a dust-proof automobile fuel tank cap, comprising an oil inlet pipe, the bottom end of the oil inlet pipe is fixedly connected to a bottom cover, and the bottom end of the bottom cover is fixedly connected to a concave cover, the bottom end of the concave cover is provided with a through hole, the inner wall of the oil inlet pipe is fitted around a limiting washer, and the top end of the limiting washer is provided with an internal thread, the top end of the oil inlet pipe is provided with a connecting cover, and the bottom end of the connecting cover is provided with external threads around, scrapers are provided on both sides of the outer wall of the connecting cover, and a dust-proof mechanism is fixedly installed on the top end of the connecting cover, the top end of the dust-proof mechanism is fixedly connected to a top cover, and the upper surface of the top cover is fixedly connected to a fixing seat, and the top end of the fixing seat is fixedly connected to an adjusting handwheel.

[0006] As a further description of the above technical solution: the internal thread is opened around the center of the inner wall of the oil inlet pipe, and the oil inlet pipe is connected with the automobile fuel tank through.

[0007] As a further description of the above technical solution: the bottom end of the connecting cover is threadably connected to the oil inlet pipe through the cooperation of external threads and internal threads, and when connected, the bottom end of the connecting cover abuts against the upper surface of the limiting washer.

[0008] As a further description of the above technical solution: when the connecting cover is connected to the oil inlet pipe, the scraper is in contact with both sides of the inner wall of the oil inlet pipe.

[0009] As a further description of the above technical solution: the dustproof mechanism includes a dustproof gasket, the bottom end of the dustproof gasket is fixedly connected to a sealing cover, and the top end of the dustproof gasket is fixedly connected to a connecting seat.

[0010] As a further description of the above technical solution: the bottom end of the sealing cover is fixedly connected to the top end of the connecting cover.

[0011] The utility model has the following beneficial effects:

[0012] The oil inlet pipe is connected to the fuel tank by the oil inlet pipe, which is convenient for filling oil. The oil is introduced into the fuel tank through the through hole. The connecting cover is threadedly connected to the oil inlet pipe by the cooperation of the internal thread and the external thread, and the oil inlet pipe is sealed. The bottom end of the connecting cover is limited by the limiting washer to prevent dust adhered to the surface of the connecting cover from falling into the fuel tank as much as possible. The dust adhered to the inner wall surface of the oil inlet pipe can be scraped out by the scraper during the rotation of the loose and tight connecting cover for cleaning. The top opening of the inner wall of the oil inlet pipe is sealed by the dust-proof washer to prevent oil volatilization and dust from entering, thereby achieving the best dust-proof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the rear structure of a dust-proof automobile fuel tank cover proposed by the utility model;

[0014] Figure 2 This is an enlarged view of the bottom of the bottom cover proposed in the present invention;

[0015] Figure 3 This is a structural diagram of the dust-proof mechanism proposed in the utility model.

[0016] Legend:

[0017] 1. Oil inlet pipe; 2. Bottom cover; 3. Concave cover; 4. Through hole; 5. Limiting washer; 6. Internal thread; 7. Connecting cover; 8. External thread; 9. Scraper; 10. Dustproof mechanism; 101. Dustproof washer; 102. Sealing cover; 103. Positioning seat; 11. Top cover; 12. Fixed seat; 13. Adjusting handwheel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] Reference Figure 1-3The utility model provides a dust-proof automobile fuel tank cap: it includes an oil inlet pipe 1, which is connected to the automobile fuel tank through the oil inlet pipe 1 to facilitate filling of oil. The bottom end of the oil inlet pipe 1 is fixedly connected to a bottom cover 2, and the bottom end of the bottom cover 2 is fixedly connected to a concave cover 3. A through hole 4 is provided at the bottom end of the concave cover 3 to guide the oil into the fuel tank through the through hole 4. The inner wall of the oil inlet pipe 1 is fitted with a limiting washer 5, and the top of the limiting washer 5 is provided with an internal thread 6. The top of the oil inlet pipe 1 is provided with a connecting cover 7, and the limiting washer 5 is used to limit the bottom end of the connecting cover 7 to prevent dust adhered to the surface of the connecting cover 7 from falling into the fuel tank as much as possible. The bottom end of the connecting cover 7 is provided with external threads 8 around it, and the internal thread 6 and the external thread 8 are used to thread the connecting cover 7 and the oil inlet pipe 1 to seal the oil inlet pipe 1. Scrapers 9 are provided on both sides of the outer wall of the connecting cover 7. The scrapers 9 can be used to scrape out the dust adhered to the inner wall surface of the oil inlet pipe 1 for cleaning during the rotation of the loose and tight connecting cover 7, and a dust-proof mechanism 10 is fixedly installed on the top of the connecting cover 7. The top of the dust-proof mechanism 10 is fixedly connected to a top cover 11, and the upper surface of the top cover 11 is fixedly connected to a fixing seat 12, and the top of the fixing seat 12 is fixedly connected to an adjusting handwheel 13. The internal thread 6 is arranged around the center of the inner wall of the oil inlet pipe 1, and the oil inlet pipe 1 is connected to the automobile fuel tank. The bottom end of the connecting cover 7 is threadedly connected to the oil inlet pipe 1 through the cooperation of the external thread 8 and the internal thread 6, and when connected, the bottom end of the connecting cover 7 abuts against the upper surface of the limit washer 5, and the scraper 9 fits against both sides of the inner wall of the oil inlet pipe 1 when the connecting cover 7 is connected to the oil inlet pipe 1.

[0020] The dustproof mechanism 10 includes a dustproof gasket 101, the bottom end of the dustproof gasket 101 is fixedly connected to a sealing cover 102, and the top end of the dustproof gasket 101 is fixedly connected to a connecting seat 103. The dustproof gasket 101 is used to seal the top opening of the inner wall of the oil inlet pipe 1 to prevent oil volatilization and dust from entering. The bottom end of the sealing cover 102 is fixedly connected to the top of the connecting cover 7.

[0021] Working principle: The oil inlet pipe 1 is connected to the automobile fuel tank to facilitate oil filling, and the oil is introduced into the fuel tank through the through hole 4. The connecting cover 7 is threadedly connected to the oil inlet pipe 1 by utilizing the cooperation of the internal thread 6 and the external thread 8 to seal the oil inlet pipe 1. The bottom end of the connecting cover 7 is limited by the limiting washer 5 to prevent the dust adhered to the surface of the connecting cover 7 from falling into the fuel tank as much as possible. The scraper 9 can be used to scrape out the dust adhered to the inner wall surface of the oil inlet pipe 1 during the rotation of the loosening and tightening connecting cover 7 for cleaning. The top opening of the inner wall of the oil inlet pipe 1 is sealed by the dustproof washer 101 to prevent oil volatilization and dust from entering.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. 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 dustproof automobile fuel tank cap, comprising an oil inlet pipe (1), characterized in that: The bottom end of the oil inlet pipe (1) is fixedly connected to a bottom cover (2), and the bottom end of the bottom cover (2) is fixedly connected to a recessed cover (3), the bottom end of the recessed cover (3) is provided with a through hole (4), the inner wall of the oil inlet pipe (1) is surrounded by a limiting washer (5), and the top end of the limiting washer (5) is provided with an internal thread (6), the top end of the oil inlet pipe (1) is provided with a connecting cover (7), and the bottom end of the connecting cover (7) is provided with external threads (8), scrapers (9) are provided on both sides of the outer wall of the connecting cover (7), and a dustproof mechanism (10) is fixedly installed on the top end of the connecting cover (7), the top end of the dustproof mechanism (10) is fixedly connected to a top cover (11), and the upper surface of the top cover (11) is fixedly connected to a fixing seat (12), and the top end of the fixing seat (12) is fixedly connected to an adjusting hand wheel (13).

2. The dustproof automobile fuel tank cap according to claim 1, characterized in that: The internal thread (6) is arranged around the center of the inner wall of the oil inlet pipe (1), and the oil inlet pipe (1) is connected to the automobile fuel tank through and through.

3. The dustproof automobile fuel tank cap according to claim 1, characterized in that: The bottom end of the connecting cover (7) is threadedly connected to the oil inlet pipe (1) through the cooperation of the external thread (8) and the internal thread (6), and when connected, the bottom end of the connecting cover (7) abuts against the upper surface of the limiting washer (5).

4. The dustproof automobile fuel tank cap according to claim 1, characterized in that: The scraper (9) fits against both sides of the inner wall of the oil inlet pipe (1) when the connecting cover (7) is connected to the oil inlet pipe (1).

5. The dustproof automobile fuel tank cap according to claim 1, characterized in that: The dustproof mechanism (10) comprises a dustproof gasket (101), the bottom end of the dustproof gasket (101) is fixedly connected to a sealing cover (102), and the top end of the dustproof gasket (101) is fixedly connected to a connecting seat (103).

6. The dustproof automobile fuel tank cap according to claim 5, characterized in that: The bottom end of the sealing cover (102) is fixedly connected to the top end of the connecting cover (7).

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