Fuel tank cap assembly

Abstract

The utility model provides an oil tank cap assembly, which relates to the field of oil tank caps, and comprises a threaded ring, a fixed ring, a transmission assembly and a plurality of threaded sheets, the plurality of threaded sheets are uniformly and fixedly arranged on the outer surface of a cap body, the threaded ring is sleeved on the outer side of the cap body, and the inner wall of the threaded ring is in threaded connection with the outer surfaces of the plurality of threaded sheets; the bottom of the threaded ring is movably connected with a transmission assembly, a plurality of limiting rods are fixedly installed at the bottom of the transmission assembly, the fixing ring is fixedly connected to the edge of the oil port, a plurality of limiting grooves are formed in the top of the fixing ring, and the limiting rods can move into the inner sides of the limiting grooves respectively. The threaded ring rotates along threads on the multiple threaded pieces, along with rotation of the threaded ring, under the action of the transmission assembly, the multiple limiting rods move into inner cavities of the multiple limiting grooves correspondingly, and under the limiting action of the multiple limiting rods, the oil cover plug is not prone to loosening due to bumping.

Description

Technical Field

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

[0002] The fuel tank cap is an important component of the fuel tank. Its main function is to seal the fuel tank, prevent fuel leakage and foreign impurities from entering the fuel tank, and ensure the cleanliness and safety of the fuel. The fuel tank cap is usually located on the top or side of the fuel tank. The specific location varies depending on the vehicle model.

[0003] The condition and sealing of the fuel tank cap are crucial to the normal use and driving safety of the motorcycle. If the fuel tank cap is damaged, lost or poorly sealed, fuel leakage may occur, which will not only waste fuel, but may also pollute the environment and even cause safety hazards such as fire. Therefore, car owners should regularly check the condition and sealing of the fuel tank cap to ensure that it is intact and tightly closed.

[0004] The existing fuel tank cap generally includes a cap body, a fuel cap plug and a turning handle. When in use, the turning handle is turned to drive the cap body to rotate, and the threads on the outer surface of the fuel cap plug spirally engage the inner wall of the oil inlet, thereby achieving the effect of sealing the oil inlet. However, when using the fuel tank cap of this structure, due to its relatively simple structure, if the road is bumpy during driving, the fuel tank cap is prone to loosening after long-term use, which to a certain extent reduces the sealing performance of the fuel tank cap.

[0005] Therefore, it is necessary to provide a new fuel tank cover assembly to solve the above-mentioned technical problems. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a fuel tank cover assembly.

[0007] The utility model provides a fuel tank cap assembly, which is installed at the oil port, including a cover body, an oil cap plug is installed at the bottom of the cover body, a turning handle is installed at the top of the cover body, and also includes a threaded ring, a fixing ring, a transmission assembly and a plurality of threaded sheets, the plurality of threaded sheets are evenly fixedly installed on the outer surface of the cover body, the threaded ring is sleeved on the outer side of the cover body, and the inner wall of the threaded ring is threadedly connected to the outer surfaces of the plurality of threaded sheets, the bottom of the threaded ring is movably connected with the transmission assembly, a plurality of limiting rods are fixedly installed at the bottom of the transmission assembly, the fixing ring is fixedly connected to the edge of the oil port, a plurality of limiting grooves are opened on the top of the fixing ring, and the plurality of limiting rods can be moved into the inner sides of the plurality of limiting grooves respectively;

[0008] When the threaded ring rotates, the plurality of limit rods move in a vertical direction.

[0009] Preferably, the transmission assembly includes a transmission ring and a plurality of guide plates, the transmission ring is sleeved on the cover body, the top of the transmission ring is movably connected to the bottom of the threaded ring, the bottom of the transmission ring is fixedly connected to the tops of a plurality of limit rods, the plurality of guide plates are evenly and fixedly connected to the inner wall of the transmission ring, the outer surface of the cover body is provided with a plurality of guide grooves, and the ends of the plurality of guide plates are respectively movably arranged on the inner sides of the plurality of guide grooves.

[0010] Preferably, the plurality of threaded sheets and the plurality of guide grooves are distributed in a staggered manner.

[0011] Preferably, a protective device is fixedly mounted on the outer side of the threaded ring.

[0012] Preferably, the protective device includes a connecting ring and a top ring, the connecting ring is fixedly sleeved on the outside of the threaded ring, the bottom of the connecting ring is fixedly connected to the second sealing ring, the bottom of the top ring is fixedly connected to the top of the connecting ring, the inner diameter of the top ring is smaller than the outer diameter of the cover body, and the bottom of the top ring is fixedly connected to the first sealing ring.

[0013] Preferably, the thickness of the first sealing ring is equal to that of the second sealing ring, and when the first sealing ring contacts the top wall of the cover body, the bottom of the second sealing ring just contacts the edge of the oil port.

[0014] Compared with the related art, the fuel tank cap assembly provided by the utility model has the following beneficial effects:

[0015] When the device is used, the handle is turned to drive the cover body to rotate, so that the oil cap plug rotates to the inside of the oil inlet. After installation, the threaded ring is then rotated along the threads on the multiple threaded sheets. As the threaded ring rotates, under the action of the transmission assembly, the multiple limit rods move downward, and the multiple limit rods move into the inner cavities of the multiple limit grooves respectively. Under the limiting action of the multiple limit rods, the oil cap plug is not easily loosened due to bumps. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of the fuel tank cover assembly provided by the utility model;

[0017] Figure 2 for Figure 1 a schematic diagram of the structure of the decomposition shown;

[0018] Figure 3 for Figure 1 A schematic cross-sectional view of the structure shown;

[0019] Figure 4 for Figure 3 Schematic diagram of the structure at A shown.

[0020] Numbers in the figure: 1. cover body; 2. oil cap plug; 3. turning handle; 4. threaded sheet; 5. threaded ring; 6. limiting rod; 7. fixing ring; 8. limiting groove; 9. transmission ring; 10. guide plate; 11. guide groove; 12. top ring; 13. first sealing ring; 14. connecting ring; 15. second sealing ring. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Please refer to Figure 1-Figure 4 ,in, Figure 1 A schematic diagram of the structure of the fuel tank cover assembly provided by the utility model; Figure 2 for Figure 1 a schematic diagram of the structure of the decomposition shown; Figure 3 for Figure 1 A schematic cross-sectional view of the structure shown; Figure 4 for Figure 3 Schematic diagram of the structure at A shown.

[0023] In the specific implementation process, Figure 1-Figure 4 As shown, the assembly is installed at the oil port, including a cover body 1, an oil cover plug 2 is installed at the bottom of the cover body 1, a turning handle 3 is installed on the top of the cover body 1, and also includes a threaded ring 5, a fixing ring 7, a transmission assembly and a plurality of threaded sheets 4, the plurality of threaded sheets 4 are evenly fixedly installed on the outer surface of the cover body 1, the threaded ring 5 is sleeved on the outside of the cover body 1, and the inner wall of the threaded ring 5 is threadedly connected to the outer surfaces of the plurality of threaded sheets 4, the bottom of the threaded ring 5 is movably connected with the transmission assembly, the bottom of the transmission assembly is fixedly installed with a plurality of limiting rods 6, the fixing ring 7 is fixedly connected to the edge of the oil port, the top of the fixing ring 7 is provided with a plurality of limiting grooves 8, and the plurality of limiting rods 6 can be respectively When the threaded ring 5 is moved into the inner side of the plurality of limiting grooves 8, when the threaded ring 5 is rotated, the plurality of limiting rods 6 are moved in the vertical direction. When the device is used, the turning handle 3 is turned to drive the cover body 1 to rotate, so that the oil cover plug 2 is rotated to the inner side of the oil inlet. After the installation is completed, the threaded ring 5 is then rotated, and the threaded ring 5 is rotated along the threads on the plurality of threaded sheets 4. With the rotation of the threaded ring 5, under the action of the transmission assembly, the plurality of limiting rods 6 move downward, and the plurality of limiting rods 6 are respectively moved into the inner cavities of the plurality of limiting grooves 8. Under the limiting action of the plurality of limiting rods 6, the oil cover plug 2 is not easy to be loosened due to bumps.

[0024] The transmission assembly includes a transmission ring 9 and a plurality of guide plates 10, the transmission ring 9 is sleeved on the cover body 1, the top of the transmission ring 9 is movably connected to the bottom of the threaded ring 5, the bottom of the transmission ring 9 is fixedly connected to the tops of the plurality of limit rods 6, the plurality of guide plates 10 are evenly and fixedly connected to the inner wall of the transmission ring 9, the outer surface of the cover body 1 is provided with a plurality of guide grooves 11, the ends of the plurality of guide plates 10 are respectively movably arranged on the inner sides of the plurality of guide grooves 11, the plurality of threaded sheets 4 and the plurality of guide grooves 11 are staggeredly distributed, with the rotation of the threaded ring 5, under the action of the plurality of guide plates 10, one end of the guide plate 10 moves downward on the inner side of the guide groove 11, and the plurality of limit rods 6 are driven downward by the transmission ring 9, so that the plurality of limit rods 6 are respectively moved into the inner cavities of the plurality of limit grooves 8;

[0025] A protective device is fixedly installed on the outer side of the threaded ring 5, and the protective device includes a connecting ring 14 and a top ring 12. The connecting ring 14 is fixedly sleeved on the outer side of the threaded ring 5, and the bottom of the connecting ring 14 is fixedly connected to the second sealing ring 15, and the bottom of the top ring 12 is fixedly connected to the top of the connecting ring 14. The inner diameter of the top ring 12 is smaller than the outer diameter of the cover body 1, and the bottom of the top ring 12 is fixedly connected to the first sealing ring 13. The thickness of the first sealing ring 13 is equal to that of the second sealing ring 15. When the first sealing ring 13 contacts the top wall of the cover body 1, the bottom of the second sealing ring 15 just contacts the edge of the oil port.

[0026] The working principle of the utility model is as follows: when the device is used, the handle 3 is turned, and the cover body 1 is driven to rotate through the handle 3, so that the oil cover plug 2 rotates the inner side of the oil inlet, then the connecting ring 14 is turned, and the connecting ring 14 drives the threaded ring 5 to rotate, and the threaded ring 5 rotates along the threads on the multiple threaded sheets 4. With the rotation of the threaded ring 5, under the action of the multiple guide plates 10, one end of the guide plate 10 moves downward on the inner side of the guide groove 11, and drives the multiple limit rods 6 to move downward through the transmission ring 9, so that The plurality of limit rods 6 are respectively moved into the inner cavities of the plurality of limit grooves 8. Under the limiting action of the plurality of limit rods 6, the oil cover plug 2 is not easily loosened due to bumps. With the rotation of the connecting ring 14, when the first sealing ring 13 contacts the top wall of the cover body 1, the bottom of the second sealing ring 15 just contacts the edge of the oil port. The connecting ring 14 is then properly rotated so that the first sealing ring 13 and the second sealing ring 15 are properly compressed. Under the action of the first sealing ring 13 and the second sealing ring 15, the sealing effect at the oil port is strengthened.

[0027] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fuel tank cap assembly, which is installed at an oil port, comprises a cap body (1), an oil cap plug (2) is installed at the bottom of the cap body (1), and a turning handle (3) is installed at the top of the cap body (1), characterized in that: It also comprises a threaded ring (5), a fixing ring (7), a transmission assembly and a plurality of threaded sheets (4), wherein the plurality of threaded sheets (4) are evenly fixedly mounted on the outer surface of the cover body (1), the threaded ring (5) is sleeved on the outer side of the cover body (1), and the inner wall of the threaded ring (5) is threadedly connected to the outer surfaces of the plurality of threaded sheets (4), the bottom of the threaded ring (5) is movably connected to the transmission assembly, a plurality of limiting rods (6) are fixedly mounted on the bottom of the transmission assembly, the fixing ring (7) is fixedly connected to the edge of the oil port, a plurality of limiting grooves (8) are opened on the top of the fixing ring (7), and the plurality of limiting rods (6) can be moved into the inner sides of the plurality of limiting grooves (8) respectively; When the threaded ring (5) rotates, the plurality of limiting rods (6) move in a vertical direction.

2. The fuel tank cap assembly according to claim 1, characterized in that: The transmission assembly comprises a transmission ring (9) and a plurality of guide plates (10); the transmission ring (9) is sleeved on the cover body (1); the top of the transmission ring (9) is movably connected to the bottom of the threaded ring (5); the bottom of the transmission ring (9) is fixedly connected to the tops of a plurality of limit rods (6); the plurality of guide plates (10) are evenly fixedly connected to the inner wall of the transmission ring (9); the outer surface of the cover body (1) is provided with a plurality of guide grooves (11); the ends of the plurality of guide plates (10) are movably arranged on the inner sides of the plurality of guide grooves (11).

3. The fuel tank cap assembly according to claim 2, characterized in that: The plurality of threaded sheets (4) and the plurality of guide grooves (11) are distributed in a staggered manner.

4. The fuel tank cap assembly according to claim 3, characterized in that: A protective device is fixedly mounted on the outer side of the threaded ring (5).

5. The fuel tank cap assembly according to claim 4, characterized in that: The protective device comprises a connecting ring (14) and a top ring (12); the connecting ring (14) is fixedly sleeved on the outer side of the threaded ring (5); the bottom of the connecting ring (14) is fixedly connected to a second sealing ring (15); the bottom of the top ring (12) is fixedly connected to the top of the connecting ring (14); the inner diameter of the top ring (12) is smaller than the outer diameter of the cover body (1); and the bottom of the top ring (12) is fixedly connected to a first sealing ring (13).

6. The fuel tank cap assembly according to claim 5, characterized in that: The thickness of the first sealing ring (13) and the second sealing ring (15) are equal, and when the first sealing ring (13) contacts the top wall of the cover body (1), the bottom of the second sealing ring (15) just contacts the edge of the oil port.

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