Automobile fuel tank cap

Abstract

The utility model discloses an automobile fuel tank cap which comprises a mounting seat, a sealing washer is arranged on the inner wall of the mounting seat, a limiting mechanism is arranged on the inner wall of the sealing washer, a pull rope is fixedly connected to one side of the upper surface of the mounting seat, a connecting cap is fixedly connected to the top end of the pull rope, and a sealing mechanism is fixedly mounted at the bottom end of the connecting cap. The top end of the connecting cover is fixedly connected with an adjusting hand wheel, and anti-skid grooves are formed in the periphery of the outer wall of the adjusting hand wheel. When an automobile is refueled, the adjusting hand wheel is screwed to drive the connecting cover to rotate, when the connecting cover rotates, the sealing cover rotates along with the connecting cover, the external threads are connected with the internal threads, the bottom end of the sealing cover abuts against the top end of the sealing gasket, the sealing gasket is sealed, and when the sealing cover is tightened, the clamping block is clamped with the limiting strip. When the sealing cover is screwed for a long time, pressure borne by the internal threads and the external threads is relieved, the phenomenon of thread slipping is avoided as much as possible, sealing is tighter, and therefore the best sealing effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile fuel tank caps, in particular to an automobile fuel tank cap. 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] Most existing automobile fuel tank caps use a threaded connection to secure the sealing cap to the fuel tank opening when sealing the fuel tank opening. As a result, when the sealing cap is twisted for a long time, the threads of the sealing cap are subjected to high pressure and easily become slipped, resulting in an insufficient seal and failure to achieve an optimal sealing effect. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to provide a car fuel tank cap.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a car fuel tank cap, including a mounting seat, the inner wall of the mounting seat is provided with a sealing gasket, and the inner wall of the sealing gasket is provided with a limiting mechanism, a pull rope is fixedly connected to one side of the upper surface of the mounting seat, and the top end of the pull rope is fixedly connected to a connecting cover, the bottom end of the connecting cover is fixedly installed with a sealing mechanism, and the top end of the connecting cover is fixedly connected to an adjusting hand wheel, and the outer wall of the adjusting hand wheel is provided with anti-slip grooves around it.

[0006] As a further description of the above technical solution: the sealing gasket is embedded in the center of the inner wall of the mounting seat, and the sealing gasket is made of silicone.

[0007] As a further description of the above technical solution: the limiting mechanism includes a screw sleeve, the inner wall of the screw sleeve is provided with an internal thread, and a limiting strip is fixedly installed on the bottom of the inner wall of the screw sleeve.

[0008] As a further description of the above technical solution: the connecting cover is fixedly connected to the mounting seat through a drawstring, and the diameters of the bottom end of the connecting cover correspond to the diameters of the top end of the sealing gasket.

[0009] As a further description of the above technical solution: the sealing mechanism includes a sealing cover, the outer wall of the sealing cover is provided with external threads, and a clamping block is fixedly installed on the bottom of the outer wall of the sealing cover, the inner wall of the sealing cover is fixedly connected with an inclined rod, and one end of the inclined rod is fixedly connected to a reinforcement rod.

[0010] As a further description of the above technical solution: the sealing cover is threadedly connected to the screw sleeve through the cooperation of the external thread and the internal thread, and the clamping block is engaged with the limiting strip.

[0011] As a further description of the above technical solution: the outer wall of the reinforcement rod is fixedly connected to the inner wall of the sealing cover through inclined rods, and the top end of the reinforcement rod is fixedly connected to the connecting cover.

[0012] The utility model has the following beneficial effects:

[0013] When the fuel tank cap is tightened, the clamping block is engaged with the limit strip, which relieves the pressure on the internal and external threads when the sealing cap is turned for a long time, avoids the phenomenon of thread slippage as much as possible, makes the seal tighter, and thus achieves the best sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the rear structure of a vehicle fuel tank cap proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the limiting mechanism proposed in the present utility model;

[0016] Figure 3 This is a structural diagram of the sealing mechanism proposed in the utility model.

[0017] Legend:

[0018] 1. Mounting seat; 2. Sealing gasket; 3. Limiting mechanism; 31. Sleeve; 32. Internal thread; 33. Limiting strip; 4. Pull rope; 5. Connecting cover; 6. Sealing mechanism; 61. Sealing cover; 62. External thread; 63. Block; 64. Diagonal rod; 65. Reinforcement rod; 7. Adjusting handwheel; 8. Anti-slip groove. DETAILED DESCRIPTION

[0019] 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.

[0020] Reference Figure 1-3 The utility model provides a car fuel tank cap: it includes a mounting base 1, which is mounted at the fuel filling port of the car fuel tank through the mounting base 1, the inner wall of the mounting base 1 is provided with a sealing gasket 2, and the inner wall of the sealing gasket 2 is provided with a limiting mechanism 3, one side of the upper surface of the mounting base 1 is fixedly connected with a pull rope 4, and the top of the pull rope 4 is fixedly connected with a connecting cover 5, which can be prevented from falling off when the connecting cover 5 is loosened by the pull rope 4, and is connected to the mounting base 1 as a whole, the bottom end of the connecting cover 5 is fixedly installed with a sealing mechanism 6, and the top of the connecting cover 5 is fixedly connected with an adjusting hand wheel 7, and the outer wall of the adjusting hand wheel 7 is provided with anti-slip grooves 8. The sealing gasket 2 is embedded in the center of the inner wall of the mounting base 1, and the sealing gasket 2 is made of silicone components, which are corrosion-resistant and have strong sealing performance. The connecting cover 5 is fixedly connected to the mounting base 1 through the pull rope 4, and the diameter of the bottom end of the connecting cover 5 corresponds to the diameter of the top end of the sealing gasket 2.

[0021] The limiting mechanism 3 includes a screw sleeve 31 . An internal thread 32 is formed on the inner wall of the screw sleeve 31 , and a limiting strip 33 is fixedly mounted on the bottom of the inner wall of the screw sleeve 31 .

[0022] The sealing mechanism 6 includes a sealing cover 61, the outer wall of the sealing cover 61 is provided with external threads 62, and the bottom of the outer wall of the sealing cover 61 is fixedly installed with a clamping block 63, the inner wall of the sealing cover 61 is fixedly connected with an inclined rod 64, and one end of the inclined rod 64 is fixedly connected with a reinforcing rod 65. When the car is refueled, the adjusting hand wheel 7 is turned to drive the connecting cover 5 to rotate. When the connecting cover 5 rotates, the sealing cover 61 rotates accordingly, so that the external thread 62 is connected to the internal thread 32, and the bottom end of the sealing cover 61 is connected to the sealing cover 61. The top ends of the sealing gasket 2 are pressed against each other to seal it. When the sealing cover 61 is tightened, the block 63 is engaged with the limit strip 33, which relieves the pressure on the internal thread 32 and the external thread 62 when the sealing cover 61 is twisted for a long time. The sealing cover 61 is threadedly connected to the screw sleeve 31 through the cooperation of the external thread 62 and the internal thread 32, and its block 63 is engaged with the limit strip 33. The outer wall of the reinforcement rod 65 is fixedly connected to the inner wall of the sealing cover 61 through the inclined rod 64, and the top end of the reinforcement rod 65 is fixedly connected to the connecting cover 5.

[0023] Working principle: It is installed at the refueling port of the automobile tank through the mounting base 1, and the pull rope 4 is used to prevent the connecting cover 5 from falling off when loosening it. It is connected to the mounting base 1 as a whole. When the car is refueled, the adjusting hand wheel 7 is turned to drive the connecting cover 5 to rotate. When the connecting cover 5 rotates, the sealing cover 61 follows the rotation, so that the external thread 62 is connected to the internal thread 32, and the bottom end of the sealing cover 61 is pressed against the top end of the sealing gasket 2 to seal it. When the sealing cover 61 is tightened, the block 63 is engaged with the limit strip 33, which relieves the pressure on the internal thread 32 and the external thread 62 when the sealing cover 61 is turned for a long time.

[0024] 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 car fuel tank cap, comprising a mounting seat (1), characterized in that: The inner wall of the mounting seat (1) is provided with a sealing gasket (2), and the inner wall of the sealing gasket (2) is provided with a limiting mechanism (3); a pull rope (4) is fixedly connected to one side of the upper surface of the mounting seat (1), and the top end of the pull rope (4) is fixedly connected to a connecting cover (5); a sealing mechanism (6) is fixedly installed at the bottom end of the connecting cover (5), and the top end of the connecting cover (5) is fixedly connected to an adjusting hand wheel (7); and anti-slip grooves (8) are provided around the outer wall of the adjusting hand wheel (7); the limiting mechanism (3) includes a screw sleeve (31), the inner wall of the screw sleeve (31) is provided with an internal thread (32), and a limit strip (33) is fixedly installed at the bottom of the inner wall of the screw sleeve (31); the sealing mechanism (6) includes a sealing cover (61), the outer wall of the sealing cover (61) is provided with an external thread (62) around, and a clamping block (63) is fixedly installed at the bottom of the outer wall of the sealing cover (61), the inner wall of the sealing cover (61) is fixedly connected with an inclined rod (64) around, and one end of the inclined rod (64) is fixedly connected with a reinforcing rod (65).

2. The automobile fuel tank cap according to claim 1, characterized in that: The sealing gasket (2) is embedded around the center of the inner wall of the mounting seat (1), and the sealing gasket (2) is made of a silicone component.

3. The automobile fuel tank cap according to claim 1, characterized in that: The connecting cover (5) is fixedly connected to the mounting seat (1) via a drawstring (4), and the diameters of the bottom end of the connecting cover (5) correspond to the diameters of the top end of the sealing gasket (2).

4. The automobile fuel tank cap according to claim 1, characterized in that: The sealing cover (61) is threadedly connected to the screw sleeve (31) through the cooperation of the external thread (62) and the internal thread (32), and the clamping block (63) is clamped with the limiting strip (33).

5. The automobile fuel tank cap according to claim 4, characterized in that: The outer wall of the reinforcing rod (65) is fixedly connected to the inner wall of the sealing cover (61) via inclined rods (64), and the top end of the reinforcing rod (65) is fixedly connected to the connecting cover (5).

Images