Fuel tank cap

Abstract

The fuel tank cap comprises a fuel tank cap body, the bottom of the fuel tank cap body is fixedly connected with an assembly block, the outer side wall of the assembly block is provided with external threads, the top of the fuel tank cap body is connected with an assembly rotating block through an assembly supporting block, and the top of the assembly rotating block is provided with a moving groove. And a moving assembly is arranged in the moving groove, two fixing rods are arranged at the top of the assembling rotating block, and a fixing ring is fixedly connected between one ends of the two fixing rods. According to the utility model, the fixed rod moves along the directions of the assembly rotating block, the assembly supporting block, the fuel tank cap body and the assembly block and has a guiding function, so that the fixed rod also drives the fixed sealing plug to move; and external air pressure can conveniently enter the oil tank through gaps among the assembly rotating block, the assembly supporting block, the oil tank cover body and the assembly block or a fixed sealing plug for sealing, so that the air pressure balance of the oil tank is further controlled, potential safety hazards are reduced, and the using effect is improved.

Description

Technical Field

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

[0002] The fuel tank cap refers to the box on the car that is used to store gasoline. It is square in shape and made of stainless steel. It has good sealing performance and only a small round entrance. This entrance is only as big as the lid of a bottle, which is convenient for storage. It is usually placed at the rear of the car. Most traditional fuel tank caps are sealed to the fuel tank opening, which will result in inconsistency between the atmospheric pressure inside the fuel tank and the air. At the same time, in some high-pressure or low-pressure environments, the air pressure in the fuel tank is a fixed value, which will cause the atmospheric pressure to squeeze the fuel tank, posing a greater safety hazard, thereby reducing the use effect. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and provides a fuel tank cover.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a fuel tank cap, comprising a fuel tank cap body, a mounting block is fixedly connected to the bottom of the fuel tank cap body, an outer wall of the mounting block is provided with an external thread, a top of the fuel tank cap body is connected to an mounting rotating block through an mounting support block, a moving groove is provided on the top of the mounting rotating block, and a moving component is arranged inside the moving groove;

[0005] Two fixing rods are arranged on the top of the assembly rotating block, a fixing ring is fixedly connected between one ends of the two fixing rods, the other end of the fixing rod passes through the assembly rotating block, the assembly support block, the fuel tank cover body and the assembly block in sequence from top to bottom and is fixedly connected with a fixed sealing plug, a fixing sleeve block is fixedly connected to the surface of the fixing ring, and an adjustment component is connected to the surface of the assembly rotating block.

[0006] As a further description of the above technical solution:

[0007] One end of the moving rod is fixedly connected with a first sealing plug, and the other end of the moving rod passes through the assembly rotating block, the assembly supporting block, the fuel tank cover body and the assembly block in sequence from top to bottom and is fixedly connected with a second sealing plug.

[0008] As a further description of the above technical solution:

[0009] The outer side wall of the moving rod is movably sleeved with a moving spring, and two ends of the moving spring are respectively fixedly connected to the side wall of the second sealing plug and the side wall of the assembly block.

[0010] As a further description of the above technical solution:

[0011] The adjustment component includes an adjustment bracket fixedly connected to the surface of the assembly rotating block, an adjustment screw is rotatably connected between the two sides of the inner wall of the adjustment bracket, the outer wall of the adjustment screw is threadedly connected to the fixed sleeve block, and one end of the adjustment screw passes through the adjustment bracket and is fixedly connected to the adjustment disk.

[0012] As a further description of the above technical solution:

[0013] A fixed L-shaped plate is fixedly connected to the surface of the adjustment bracket, a fixed rotating shaft passes through the top of the fixed L-shaped plate and is rotatably connected, a fixed disk and a fixed bevel gear are respectively fixedly connected at both ends of the fixed rotating shaft, the fixed disk is transmission-connected to the adjustment disk through a belt, and a driving motor is fixedly connected to the surface of the fixed L-shaped plate.

[0014] As a further description of the above technical solution:

[0015] The output end of the driving motor is fixedly connected with a driving rod, the end of the driving rod passes through a fixed L-shaped plate and is rotatably connected with the adjusting bracket, the outer side wall of the driving rod is fixedly sleeved with a driving bevel gear, and the driving bevel gear is meshedly connected with the fixed bevel gear.

[0016] The utility model has the following beneficial effects:

[0017] The moving assembly can be used to match the moving rod, the first sealing plug, the second sealing plug and the moving spring, so that the air pressure pushes the second sealing plug, so that the second sealing plug drives the moving rod and the moving spring to move and contract, and then the first sealing plug on the moving rod is separated from the moving groove, so that the air pressure is discharged and the pressure is relieved through the gap between the assembly rotating block, the assembly supporting block, the oil tank cover body and the assembly block. After the pressure is relieved, the moving spring gives the moving rod a restoring force and drives the second sealing plug to reset the seal, thereby controlling the air pressure balance of the oil tank. The adjusting assembly can be used to match the adjusting bracket, the adjusting screw, the adjusting disk, the fixed L-shaped plate, the fixed rotating shaft, the fixed disk, the fixed bevel gear, the driving motor, the driving rod and the driving bevel gear, so that the driving bevel gear on the driving rod is driven by the driving motor. The gear rotates, and then the driving bevel gear also drives the fixed rotating shaft and the fixed disk on the fixed bevel gear to rotate, and then the fixed disk drives the adjusting disk to rotate through the belt, and then the adjusting disk also drives the adjusting screw to rotate forward and reverse, and then the fixed sleeve block moves along the direction of the adjusting screw, so that the fixed sleeve block drives the fixed rod through the fixed ring to move and guide along the direction of the assembly rotating block, the assembly supporting block, the fuel tank cover body and the assembly block, so that the fixed rod also drives the fixed sealing plug to move, which is convenient for the external air pressure to enter the fuel tank through the gap between the assembly rotating block, the assembly supporting block, the fuel tank cover body and the assembly block or the fixed sealing plug for sealing, thereby further controlling the air pressure balance of the fuel tank, reducing safety hazards, and thus improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of a fuel tank cover proposed by the utility model;

[0019] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0020] Figure 3 This is a schematic diagram of the structure of a fixing sleeve block, an adjusting bracket and an adjusting screw rod of a fuel tank cover proposed by the utility model;

[0021] Figure 4 for Figure 3 Schematic diagram of the enlarged structure at point B.

[0022] Legend:

[0023] 1. Fuel tank cap body; 2. Assembly block; 3. Assembly support block; 4. Assembly rotating block; 5. Moving rod; 6. First sealing plug; 7. Second sealing plug; 8. Moving spring; 9. Fixed rod; 10. Fixed sealing plug; 11. Fixed ring; 12. Fixed sleeve block; 13. Adjustment bracket; 14. Adjustment screw; 15. Adjustment disk; 16. Fixed L-shaped plate; 17. Fixed rotating shaft; 18. Fixed disk; 19. Fixed bevel gear; 20. Driving motor; 21. Driving rod; 22. Driving bevel gear. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Reference Figure 1-4 The utility model provides a fuel tank cap, comprising a fuel tank cap body 1, a mounting block 2 is fixedly connected to the bottom of the fuel tank cap body 1, an outer wall of the mounting block 2 is provided with an external thread, a top of the fuel tank cap body 1 is connected to an mounting rotating block 4 through an mounting support block 3, a top of the mounting rotating block 4 is provided with a moving groove, a moving component is arranged inside the moving groove, and the moving component plays a role in relieving the pressure of the fuel tank, referring to Figure 1 and Figure 2The moving assembly includes a moving rod 5, one end of which is fixedly connected to a first sealing plug 6, and the other end of the moving rod 5 passes through the assembly rotating block 4, the assembly supporting block 3, the fuel tank cover body 1 and the assembly block 2 in sequence from top to bottom and is fixedly connected to a second sealing plug 7. A moving spring 8 is movably sleeved on the outer wall of the moving rod 5, and the two ends of the moving spring 8 are respectively fixedly connected to the side walls of the second sealing plug 7 and the side walls of the assembly block 2. When the air pressure inside the fuel tank is large, the air pressure pushes the second sealing plug 7, so that the second sealing plug 7 drives the moving rod 5 and the moving spring 8 to move, and then the first sealing plug 6 on the moving rod 5 is separated from the moving groove, so that the air pressure is discharged through the gap between the assembly rotating block 4, the assembly supporting block 3, the fuel tank cover body 1 and the assembly block 2 to relieve the pressure.

[0026] Two fixing rods 9 are arranged on the top of the assembly rotating block 4, and a fixing ring 11 is fixedly connected between one end of the two fixing rods 9. The other end of the fixing rod 9 passes through the assembly rotating block 4, the assembly support block 3, the fuel tank cover body 1 and the assembly block 2 from top to bottom and is fixedly connected with a fixed sealing plug 10. The surface of the fixing ring 11 is fixedly connected with a fixing sleeve block 12. The surface of the assembly rotating block 4 is connected with an adjustment component. Figure 3 and Figure 4 The adjusting component includes an adjusting bracket 13 fixedly connected to the surface of the assembly rotating block 4, an adjusting screw 14 is rotatably connected between the two sides of the inner wall of the adjusting bracket 13, the outer wall of the adjusting screw 14 is threadedly connected to the fixed sleeve block 12, one end of the adjusting screw 14 passes through the adjusting bracket 13 and is fixedly connected to an adjusting disk 15, a fixed L-shaped plate 16 is fixedly connected to the surface of the adjusting bracket 13, the top of the fixed L-shaped plate 16 passes through and is rotatably connected to a fixed rotating shaft 17, both ends of the fixed rotating shaft 17 are respectively fixedly connected to a fixed disk 18 and a fixed bevel gear 19, the fixed disk 18 is connected to the adjusting disk 15 through a belt transmission, a driving motor 20 is fixedly connected to the surface of the fixed L-shaped plate 16, a driving rod 21 is fixedly connected to the output end of the driving motor 20, the end of the driving rod 21 passes through the fixed L-shaped plate 16 and is rotatably connected to the adjusting bracket 13, a driving bevel gear 22 is fixedly sleeved on the outer wall of the driving rod 21, and the driving bevel gear 22 is meshed and connected with the fixed bevel gear 19, and the driving motor 20 plays a role in driving the driving rod 21 to rotate.

[0027] Working principle: When the air pressure inside the external oil tank is relatively high, the air pressure pushes the second sealing plug 7, so that the second sealing plug 7 drives the moving rod 5 and the moving spring 8 to move and contract, and then the first sealing plug 6 on the moving rod 5 is separated from the moving groove, so that the air pressure is discharged through the gap between the assembly rotating block 4, the assembly supporting block 3, the oil tank cover body 1 and the assembly block 2 to relieve the pressure. After the pressure is relieved, the moving spring 8 gives the moving rod 5 a restoring force, and then the moving rod 5 also drives the second sealing plug 7 to reset, followed by the first sealing plug 6 and the moving groove being engaged and sealed, thereby maintaining the gas balance inside the oil tank and ensuring the pressure control effect.

[0028] When the air pressure inside the external oil tank is low, the driving motor 20 is started first, and the driving bevel gear 22 on the driving rod 21 is driven to rotate by the driving motor 20, and then the driving bevel gear 22 also drives the fixed rotating shaft 17 and the fixed disk 18 on the fixed bevel gear 19 to rotate, and then the fixed disk 18 drives the adjusting disk 15 to rotate through the belt, and then the adjusting disk 15 also drives the adjusting screw 14 to rotate, and then the fixed sleeve block 12 moves along the direction on the adjusting screw 14, because the fixed sleeve block 12 is installed with the fixed ring 11, and the fixed rod 9 on the fixed ring 11 moves and guides along the direction on the assembly rotating block 4, the assembly support block 3, the oil tank cover body 1 and the assembly block 2, and follows The fixed rod 9 also drives the fixed sealing plug 10 to move, so that the external air pressure enters the inside of the fuel tank through the gap between the assembly rotating block 4, the assembly supporting block 3, the fuel tank cover body 1 and the assembly block 2, and then the driving motor 20 is started again, and the fixed bevel gear 19 and the fixed rotating shaft 17 on the driving bevel gear 22 are driven to rotate by the driving motor 20, and then the fixed rotating shaft 17 also drives the fixed plate 18 to rotate through the belt to drive the adjusting screw 14, so that the fixed sleeve block 12 moves and resets along the direction on the adjusting screw 14, and then the fixed sleeve block 12 also drives the fixed rod 9 and the sealing plug 10 on the fixed ring 11 to reset the seal, so that the air pressure inside the fuel tank is balanced, ensuring further pressure control effect.

[0029] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fuel tank cap, comprising a fuel tank cap body (1), characterized in that: The bottom of the fuel tank cover body (1) is fixedly connected to an assembly block (2), the outer side wall of the assembly block (2) is provided with an external thread, the top of the fuel tank cover body (1) is connected to an assembly rotating block (4) via an assembly support block (3), the top of the assembly rotating block (4) is provided with a moving groove, and a moving component is arranged inside the moving groove; Two fixing rods (9) are arranged on the top of the assembly rotating block (4), a fixing ring (11) is fixedly connected between one end of the two fixing rods (9), the other end of the fixing rod (9) passes through the assembly rotating block (4), the assembly support block (3), the fuel tank cover body (1) and the assembly block (2) in sequence from top to bottom and is fixedly connected to a fixing sealing plug (10), a fixing sleeve block (12) is fixedly connected to the surface of the fixing ring (11), and an adjusting component is connected to the surface of the assembly rotating block (4).

2. A fuel tank cap according to claim 1, characterized in that: The moving assembly comprises a moving rod (5), one end of which is fixedly connected to a first sealing plug (6), and the other end of which passes through the assembly rotating block (4), the assembly supporting block (3), the fuel tank cover body (1) and the assembly block (2) in sequence from top to bottom and is fixedly connected to a second sealing plug (7).

3. A fuel tank cap according to claim 2, characterized in that: The outer side wall of the moving rod (5) is movably sleeved with a moving spring (8), and the two ends of the moving spring (8) are respectively fixedly connected to the side wall of the second sealing plug (7) and the side wall of the assembly block (2).

4. The fuel tank cap according to claim 1, characterized in that: The adjustment assembly comprises an adjustment bracket (13) fixedly connected to the surface of the assembly rotating block (4); an adjustment screw (14) is rotatably connected between the two sides of the inner wall of the adjustment bracket (13); the outer wall of the adjustment screw (14) is threadedly connected to the fixed sleeve block (12); one end of the adjustment screw (14) passes through the adjustment bracket (13) and is fixedly connected to the adjustment disk (15).

5. The fuel tank cap according to claim 4, characterized in that: A fixed L-shaped plate (16) is fixedly connected to the surface of the adjustment bracket (13); a fixed rotating shaft (17) passes through the top of the fixed L-shaped plate (16) and is rotatably connected thereto; two ends of the fixed rotating shaft (17) are respectively fixedly connected to a fixed disk (18) and a fixed bevel gear (19); the fixed disk (18) is transmission-connected to the adjustment disk (15) via a belt; and a driving motor (20) is fixedly connected to the surface of the fixed L-shaped plate (16).

6. A fuel tank cap according to claim 5, characterized in that: The output end of the driving motor (20) is fixedly connected to a driving rod (21), the end of the driving rod (21) passes through a fixed L-shaped plate (16) and is rotatably connected to the adjustment bracket (13), the outer side wall of the driving rod (21) is fixedly sleeved with a driving bevel gear (22), and the driving bevel gear (22) is meshingly connected to the fixed bevel gear (19).

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