Fuel tank cap and vehicle

Abstract

The utility model belongs to the technical field of vehicles, and discloses an oil tank cover capable of closing an oil filling hole of an oil tank opening of a vehicle in an opening and closing mode and the vehicle, and an oil tank filter screen is detachably installed in the oil filling hole. The fuel tank cover comprises a fuel tank cover seat, a fuel tank base cover and a fuel tank outer cover. The fuel tank cap seat is fixedly connected with the fuel tank opening. The oil tank base cover is detachably mounted on the oil tank cover seat to cover the oil filling hole, so that the oil tank base cover can be directly taken down to replace the filter screen or perform oil filling operation. The oil tank base cover is further provided with a first through hole communicated with the oil filling hole, an outer cover body of the oil tank outer cover is movably installed on the oil tank base cover, and the outer cover body has a closing position for covering the first through hole and an opening position for exposing the first through hole, so that a second oil tank opening mode is provided, and the oil tank base cover does not need to be detached. And refueling operation can also be carried out. The oil tank cap is applied to the vehicle, so that the convenience of replacing the oil tank filter screen and refueling of the vehicle can be improved.

Description

Technical Field

[0001] The utility model relates to the field of vehicles, in particular to a fuel tank cap and a vehicle. Background Art

[0002] A fuel filling gun can extend into the fuel filling hole of the fuel tank opening of a vehicle to supply fuel to the fuel tank so that the vehicle can run normally. The fuel tank opening and the fuel tank are usually connected by a fuel delivery hose. The fuel tank cap covers the outside of the fuel tank opening to prevent the fuel in the fuel tank from overflowing after the fuel filling gun uses the fuel filling hole for fuel filling operation. A fuel tank filter screen is installed in the fuel filling hole and can filter impurities and sediments in the fuel injected into the fuel tank during the fuel filling operation to prevent them from entering the vehicle engine and causing damage to the engine.

[0003] In the prior art, the fuel tank filter screen is blocked by the fuel tank cap and is not easy to disassemble. When the fuel filling gun extends into the fuel filling hole for fuel filling, the fuel tank filter screen directly filters the fuel. After long-term use, a large amount of impurities and sediments will inevitably accumulate and block the fuel tank filter screen. The fuel can no longer pass through the fuel tank filter screen and enter the fuel tank. It is necessary to remove the fuel tank cap and replace the fuel tank filter screen before the fuel filling operation can be carried out normally.

[0004] Generally, only professional personnel with professional vehicle repair skills can successfully remove the fuel tank cap and replace the fuel tank filter screen on the premise of using professional repair tools. It is generally very difficult for vehicle owners to replace the fuel tank filter screen by themselves. If a vehicle owner drives the vehicle to a gas station and the vehicle's fuel is completely exhausted and finds that the filter screen is blocked, and the vehicle owner neither has professional vehicle repair skills nor professional repair tools, they can only call for roadside assistance to seek the help of professional repair personnel, which takes a long time and the cost of calling for roadside assistance is not cheap. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a fuel tank cap and a vehicle. Compared with the existing fuel tank cap, it can provide two opening methods, which can not only easily disassemble the fuel tank cap to replace the fuel tank filter screen, but also carry out the fuel filling operation without disassembling the fuel tank cap during the fuel filling operation, thereby improving the convenience of replacing the fuel tank filter screen and fuel filling of the vehicle.

[0006] To achieve the above object, the utility model adopts the following technical solutions:

[0007] Advantages of the Utility Model

[0008] In a first aspect, a fuel tank cap is provided for detachably closing the fuel filling hole of the fuel tank opening of a vehicle. A fuel filter screen is detachably installed in the fuel filling hole. The fuel tank cap includes:

[0009] A fuel tank cap base fixedly connected to the fuel tank opening;

[0010] A fuel tank base cover, the fuel tank base cover has a first through hole connected to the oil filling hole, and the fuel tank base cover can be detachably mounted on the fuel tank cover seat;

[0011] The oil tank outer cover comprises an outer cover body, which is movably mounted on the oil tank base cover so that the outer cover body has a closing position for covering a first through hole and an opening position for exposing the first through hole.

[0012] Preferably, the fuel tank cover further comprises a locking mechanism, the locking mechanism comprises a lock core and a driving member, the driving member is mounted on the fuel tank cover seat, and the output end of the driving member is transmission-connected to the lock core;

[0013] The fuel tank base cover is provided with a first receiving groove, and the driving member can drive the lock core to move so that the lock core has a first locking position extending into the first receiving groove and a first unlocking position moving out of the first receiving groove.

[0014] Preferably, the fuel tank outer cover also includes a locking tongue, a first end of the outer cover body is pivotally connected to the fuel tank base cover, a second end thereof is fixedly connected to the locking tongue, and the locking tongue can be detachably engaged with the fuel tank base cover.

[0015] Preferably, the fuel tank base cover is also provided with a second receiving groove which is engaged with the locking tongue;

[0016] The second end of the outer cover body is pivotally connected to the lock tongue, so that the lock tongue can rotate relative to the outer cover body, so that the lock tongue has a second locking position engaged with the second receiving groove and a second unlocking position moved out of the second receiving groove;

[0017] The tank outer cover also includes a first elastic member, one end of which is connected to the outer cover body, and the other end of which is connected to the locking tongue. When the locking tongue is in the second locking position, the first elastic member is in a compressed state.

[0018] Preferably, the locking tongue includes a connecting portion and a locking portion vertically connected to the connecting portion, the connecting portion is pivotally connected to the second end of the outer cover body, and the locking portion can be clamped in the second receiving groove or avoid the second receiving groove.

[0019] Preferably, the fuel tank outer cover also includes a second elastic member, one end of the second elastic member is fixedly connected to a side of the outer cover body facing the fuel tank port, the other end of the second elastic member is fixedly connected to the fuel tank base cover, and the second elastic member is in a compressed state when the locking part is clamped in the second receiving groove.

[0020] Preferably, the fuel tank cover also includes an electromagnetic lock, which includes a first electromagnet and a second electromagnet. The first electromagnet is installed on a side of the fuel tank base cover facing the connecting part, and the second electromagnet is installed on a side of the connecting part facing the fuel tank base cover. The first electromagnet and the second electromagnet can be energized to have a mutually attracted locking state and a mutually repelling unlocking state.

[0021] Preferably, the fuel tank cap further includes a sealing sleeve, which includes a first sealing portion covering the fuel injection hole;

[0022] The first sealing portion has a slit for inserting a fuel nozzle into the fuel tank opening.

[0023] Preferably, the outer fuel tank cover further includes a bump fixed to the surface of the outer cover body facing the fuel tank opening, and the bump presses against the sealing sleeve when the outer cover body is in the closed position.

[0024] In a second aspect, a vehicle is provided, including the above fuel tank cap.

[0025] The fuel tank cap provided by the present utility model includes a fuel tank cap seat, a fuel tank base cover, and an outer fuel tank cover. The fuel tank cap seat is fixed to the fuel tank opening to seal the fuel injection hole to prevent fuel in the fuel tank from leaking. The fuel tank base cover is detachably installed on the fuel tank cap seat, so that the fuel tank base cover can be quickly disassembled for refueling operations or replacing the fuel tank filter. The fuel tank cap seat has a first through hole communicating with the fuel injection hole, and the outer cover body of the outer fuel tank cover is movably installed on the fuel tank base cover, so that it can cover or expose the fuel tank opening. Therefore, refueling operations can be carried out without disassembling the fuel tank base cover, providing two ways to open the fuel tank cap to simplify the refueling operation process, thereby improving the vehicle owner's driving experience. The present invention also provides a vehicle, which can improve the convenience of replacing the fuel tank filter and refueling the vehicle by applying the above fuel tank cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a cross-sectional view of the fuel tank cap provided by the present utility model in cooperation with the fuel tank opening;

[0027] Figure 2 is a cross-sectional view of the fuel tank cap seat provided by the present utility model;

[0028] Figure 3 is a cross-sectional view of the fuel tank base cover and the outer fuel tank cover provided by the present utility model;

[0029] Figure 4 is a schematic cross-sectional structure diagram of the outer fuel tank cover in the open state during refueling operations provided by the present utility model;

[0030] Figure 5 is a top view structure diagram of the sealing sleeve provided by the present utility model;

[0031] Figure 6 is a flowchart of the fuel tank cap control method provided by the present utility model.

[0032] In the figure:

[0033] 100, fuel tank opening; 101, fuel injection hole; 200, fuel tank filter;

[0034] 1. Fuel tank cap seat; 11. Second through hole

[0035] 2. Fuel tank base cover; 21. First through hole; 22. First receiving groove; 23. Second receiving groove

[0036] 3. Fuel tank outer cover; 31. Outer cover body; 32. Lock tongue; 321. Connection part; 322. Lock head part; 33. First elastic part; 34. Second elastic part; 35. Protrusion

[0037] 4. Locking mechanism; 41. Lock core; 42. Driving part

[0038] 5. Electromagnetic lock; 51. First electromagnet; 52. Second electromagnet

[0039] 6. Sealing sleeve; 61. First sealing part; 611. Slit; 62. Second sealing part Detailed implementation mode

[0040] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0041] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0042] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above the top of", and "on the top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is at a higher horizontal height than the second feature. The first feature being "below", "below the bottom of", and "under the bottom of" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the first feature is at a lower horizontal height than the second feature.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., which indicate orientation or positional relationships, are based on the orientations or positional relationships shown in the drawings. These are only for the convenience of description and simplifying operations, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0044] Figure 1 Fig. shows a cross-sectional view of the fuel tank cap provided by the present utility model in cooperation with the fuel tank opening 100. As Figure 1 shown, the fuel tank opening 100 of the vehicle has a fuel injection hole 101. A fuel filling gun can extend into the fuel injection hole 101 to supply fuel to the fuel tank. The fuel tank and the fuel tank opening are connected through a hose. The fuel filter screen 200 is detachably installed in the fuel injection hole 101. The fuel tank cap is used to open and close the fuel injection hole 101 to prevent the fuel in the fuel tank from leaking out. Under normal use conditions of the vehicle, the fuel tank cap should close the fuel injection hole 101 to prevent the fuel in the fuel tank from leaking out. Only when refueling is required, the fuel tank cap needs to be opened so that the fuel filling gun can extend into the fuel injection hole 101.

[0045] In the related art, when the fuel tank filter screen 200 needs to be replaced, the entire fuel tank cap needs to be removed from the fuel tank opening 100 in order to take out the fuel tank filter screen 200 in the fuel injection hole 101 and replace it. However, this operation not only requires professional operating tools but also has certain requirements for the operating level of the operator. As a result, when the fuel tank filter screen 200 is blocked and needs to be replaced, only roadside assistance can be called, which requires a long waiting time and the cost of calling roadside assistance is not cheap. Figure 2 Fig. shows a cross-sectional view of the fuel tank cap seat 1 provided by the present utility model, Figure 3 Fig. shows a cross-sectional view of the fuel tank base cap 2 and the fuel tank outer cap 3 provided by the present utility model. As Figures 2 to 3 and in combination with Figure 1 shown, the fuel tank cap includes a fuel tank cap seat 1 and a fuel tank base cap 2. The fuel tank cap seat 1 is fixedly connected to the fuel tank opening 100. The fuel tank base cap 2 is detachably installed on the fuel tank cap seat 1 and can cover the fuel injection hole 101, thereby preventing the fuel in the fuel tank from leaking out. When the fuel tank filter screen needs to be replaced, the fuel tank base cap 2 can be removed to replace the fuel tank filter screen. Of course, it can be understood that refueling operations can also be carried out after the fuel tank base cap 2 is removed.

[0046] Specifically, the fuel tank opening 100 has a protruding surrounding wall structure, and the surrounding wall structure encloses and forms a fuel injection hole 101, thereby deepening the depth of the fuel injection hole 101 to prevent the fuel filling gun from reaching too deep into the fuel injection hole 101 and touching the fuel filter screen 200, thus damaging the fuel filter screen 200. The fuel tank cap seat 1 is fixed to the fuel tank opening 100 and has a second through hole 11 that can be axially hole-mated with the surrounding wall structure. The fuel tank cap seat 1 is sleeved outside the surrounding wall structure and fixedly connected to the fuel tank opening 100, thereby fixing the fuel tank cap seat 1 on the fuel tank opening 100.

[0047] In some embodiments, the fuel tank cap seat 1 is directly welded or bolt-connected and fixed to the fuel tank opening 100 to cooperate with the fuel injection hole 101, and is not disassembled randomly to prevent the loss of the fuel tank cap seat 1 in the fuel tank cap.

[0048] In other embodiments, an external thread is attached to the outer surface of the surrounding wall structure of the fuel tank opening 100, and the second through hole 11 of the fuel tank cap seat 1 has an internal thread. The surrounding wall structure of the fuel tank opening 100 is thread-connected to the second through hole 11, so that the fuel tank cap seat 1 can be quickly disassembled to ensure that the entire fuel tank cap can be disassembled when the fuel tank cap needs to be replaced.

[0049] Since refueling operations are necessarily more frequent than replacing the filter screen, if the fuel tank cap seat 1 is disassembled every time a refueling operation is performed, the refueling operation will inevitably become cumbersome, reducing the driving experience of the vehicle owner. To enable simple refueling operations, the fuel tank base cover 2 has a first through hole 21 communicating with the fuel injection hole 101, so that the fuel filling gun can reach into the fuel injection hole 101 without disassembling the fuel tank base cover 2. When the fuel tank base cover 2 is installed on the fuel tank base 1, the fuel injection hole 101 is in an open state. At this time, the fuel tank cap further includes a fuel tank outer cover 3. The fuel tank outer cover 3 includes an outer cover body 31 that can be movably installed on the fuel tank base cover 2. Specifically, the outer cover body 31 can be both rotatably connected and slidably connected to the fuel tank base cover 2. The outer cover body 31 has a closed position covering the first through hole 21 and an open position exposing the first through hole 21. When the outer cover body 31 is in the closed position, it can prevent the fuel in the fuel tank from leaking, and at this time, the vehicle can drive normally; when the outer cover body 31 is in the open position, it can enable the fuel filling gun to reach into the fuel injection hole 101 through the first through hole 21 for refueling operations. The fuel tank cap provided in this embodiment can quickly disassemble the fuel tank base cover 2 and the fuel tank outer cover 3 to replace the fuel tank filter screen 200 when the fuel tank filter screen 200 needs to be replaced; when the fuel tank lacks fuel, directly open the fuel tank outer cover 3 for refueling operations without having to disassemble the fuel tank base cover 2, providing two ways to open the fuel tank cap to improve the driving experience of the vehicle owner.

[0050] In some embodiments, a pivot shaft is provided on the fuel tank base cover 2, and one end of the outer cover body 31 is connected to the pivot shaft, thereby realizing the pivot connection of the outer cover body 31 relative to the fuel tank base cover 2, so that the outer cover body 31 can rotate relative to the fuel tank base cover 2 to cover the first through hole 21 or expose the first through hole 21.

[0051] In other embodiments, a slide rail is provided on the fuel tank base cover 2, and a slider is provided on the outer cover body 31. The slider slidably cooperates with the slide rail, so that the outer cover body 31 can slide relative to the fuel tank base cover 2 to cover the first through hole 21 or expose the first through hole 21.

[0052] The fuel tank cover also includes a locking mechanism 4, including a lock core 41 and a driving member 42. The driving member 42 is installed on the fuel tank cover base 1. The output end of the driving member 42 is connected to the lock core 41 in a transmission manner so as to enable the lock core 41 to move. The fuel tank base cover 2 is provided with a first receiving groove 22 capable of accommodating the lock core 41. The driving member 42 can drive the lock core 41 to move so as to have a first locking position extending into the first receiving groove 22 and a first unlocking position moving out of the first receiving groove 22. When the lock core 41 is in the first locking position, the fuel tank filter 200 cannot be replaced, and the refueling gun cannot be extended into the oil filling hole 101 for refueling. When the lock core 41 is in the first unlocking position, the fuel tank base cover 2 and the fuel tank outer cover 3 can be removed to replace the fuel tank filter 200, and the refueling gun can also be extended into the oil filling hole 101 for refueling.

[0053] The first end of the outer cover body 31 is pivotally connected to the fuel tank base cover 2, so that the outer cover body 31 can rotate relative to the fuel tank base cover 2. When the fuel tank is short of fuel, the base cover body 31 can rotate to expose the first through hole 21, so that the refueling gun can be inserted into the oil filling hole 101 through the first through hole 21 to perform refueling operations. After completing the refueling operation, the base cover body 31 can rotate to cover the first through hole 21 to prevent the fuel in the fuel tank from leaking.

[0054] The fuel tank outer cover 3 also includes a locking tongue 32, and the second end of the outer cover body 31 is fixedly connected to the locking tongue 32. The locking tongue 32 can be detachably engaged with the fuel tank base cover 2, thereby preventing the fuel tank base cover 2 from rotating and leaking out of the first through hole 21 during normal driving of the vehicle, causing fuel leakage. When the vehicle needs to be refueled, the fuel tank base cover 2 can be rotated to leak out of the first through hole 21 for refueling.

[0055] It should be noted that the driving member 42 can be a stepper motor, a stepping motor or a servo motor, which can drive the lock core 41 to move within a specific range, so that it can be repeatedly switched between the locked state and the free state, facilitating the disassembly and assembly of the fuel tank base cover 2. All driving members that can make the lock core 41 rotate and move within a specific range and enable it to be repeatedly switched between the locked state and the free state are within the protection scope of this application. The specific type of the driving member 42 is a relatively common driving member in the art and will not be elaborated here one by one.

[0056] Figure 4 Fig. shows a schematic cross-sectional structure diagram of the fuel tank outer cover in the open state during refueling operation provided by the present utility model, as Figures 1 to 4 shown, a second receiving groove 23 is further provided on the fuel tank base cover 2. The second end of the outer cover body 31 is pivotally connected to the locking tongue 32, so that the locking tongue 32 can rotate relative to the outer cover body 31, enabling the locking tongue 32 to have a second locking position where it is engaged in the second receiving groove 23 and a second unlocking position where it moves out of the second receiving groove 23. When the locking tongue 32 is in the second locking position, the outer cover body 31 covers the first through hole 21 and cannot rotate relative to the fuel tank base cover 2. When the locking tongue 32 is in the second unlocking position, the outer cover body 31 can rotate relative to the fuel tank base cover 2 to avoid the first through hole 21, and refueling operation can be carried out. The fuel tank outer cover 3 further includes a first elastic member 33. One end of the first elastic member 33 is connected to the outer cover body 31, and the other end is connected to the locking tongue 32. When the locking tongue 32 is in the second locking position, the first elastic member 33 is in a compressed state. Thus, by using the elastic force provided by the first elastic member 33, when the locking tongue 32 is in the second locking position, the locking tongue 32 is maintained in the second locking position and will not easily rotate to the second unlocking position under external force.

[0057] Specifically, the locking tongue 32 includes a connecting portion 321 and a locking head portion 322, and the connecting portion 321 and the locking head portion 322 are perpendicularly and fixedly connected to each other. The connecting portion 321 is pivotally connected to the second end of the outer cover body 31, enabling the connecting portion 321 of the locking tongue 32 to rotate relative to the outer cover body 31, thereby driving the locking head portion 322 of the locking tongue 32 to rotate relative to the outer cover body 31. The locking head portion 322 of the locking tongue 32 can be engaged in the second receiving groove 23 or avoid the second receiving groove 23.

[0058] The fuel tank base cover 2 further includes a second elastic member 34. One end of the second elastic member 34 is fixedly connected to the side of the outer cover body 31 facing the fuel tank opening 100, and the other end of the second elastic member 34 is fixedly connected to the fuel tank base cover 2. When the locking tongue 32 is received in the second receiving groove 23 and is in the second locking position, the second elastic member 34 is in a compressed state. Thus, when the locking head 322 rotates relative to the outer cover body 31 and is in the second unlocking position, the second elastic member 34 can directly provide an elastic force, so that the outer cover body 31 rotates relative to the fuel tank base cover 2, automatically popping open the outer cover body 31, enabling the fuel nozzle to extend into the fuel injection hole 101 for refueling operations.

[0059] The fuel tank cap further includes an electromagnetic lock 5. The electromagnetic lock 5 includes a first electromagnet 51 and a second electromagnet 52. The first electromagnet 51 is installed on the side of the fuel tank base cover 2 facing the connecting portion 321, and the second electromagnet 52 is installed on the side of the connecting portion 321 facing the fuel tank base cover 2. The first electromagnet 51 and the second electromagnet 52 can be energized to have a locked state of mutual attraction or an unlocked state of mutual repulsion. When the first electromagnet 51 and the second electromagnet 52 are energized and have the same polarity, the first electromagnet 51 repels the second electromagnet 52, enabling the locking head 322 of the locking tongue 32 to rotate relative to the outer cover body 31 against the elastic force of the first elastic member 33. By adjusting the position of the locking head 322, the outer cover body 31 can rotate relative to the outer cover body 31. The second elastic member 34 in the compressed state provides an elastic force, directly causing the outer cover body 31 to rotate relative to the fuel tank base cover 2, so that the fuel tank outer cover 3 can be opened for refueling operations. After the refueling operation is completed, the first electromagnet 51 and the second electromagnet 52 can be reversely energized to have opposite polarities. Under the action of the electromagnetic force, the outer cover body 31 rotates relative to the fuel tank base cover 2, and finally the locking head 322 of the locking tongue 32 is clamped in the second receiving groove 23, realizing the automatic closing control of the fuel tank cap.

[0060] Figure 5 The top view structural schematic diagram of the sealing sleeve 6 provided by the present utility model is shown, as Figures 1 to 5 shown, the fuel tank cap further includes a sealing sleeve 6. The sealing sleeve 6 includes a first sealing portion 61 covering the fuel injection hole 101, preventing the fuel in the fuel tank from overflowing from the fuel injection hole 101, and further preventing the fuel from leaking to the outside of the vehicle to cause danger. The first sealing portion 61 also has a slit 611 for inserting the fuel nozzle into the fuel injection hole 101. The slit 611 can be deformed into a through hole under the pressure towards the inside of the fuel tank, so as to ensure that the fuel nozzle can be inserted into the fuel injection hole 101 for normal refueling operations without having to disassemble the sealing sleeve 6 on the premise that the sealing sleeve 6 can play a normal sealing role.

[0061] The sealing sleeve 6 further includes a second sealing portion 62 disposed around the circumferential side of the first sealing portion 61 and extending in the axial direction of the first sealing portion 61. The second sealing portion 62 is clamped between the surrounding wall structure of the fuel tank opening 100 and the fuel tank base cover 2. This not only improves the sealing effect by increasing the contact area between the sealing sleeve 6 and the fuel tank opening 100, but also enhances the installation stability of the sealing sleeve 6 and prevents the sealing sleeve 6 from falling into the fuel tank through the fuel injection hole 101.

[0062] The fuel tank outer cover 3 further includes a convex block 35 fixed to the side surface of the outer cover body 31 relative to the fuel tank opening 100. When the outer cover body 31 is in the closed position, the convex block 35 presses against the sealing sleeve 6. By pressing against the sealing sleeve 6, the friction force of the sealing sleeve 6 relative to the fuel tank opening 100 is increased, thereby correspondingly enhancing the sealing performance of the sealing sleeve 6 relative to the fuel injection hole 101, and further preventing the fuel in the fuel tank from leaking.

[0063] This embodiment also provides a vehicle, which includes the above-mentioned fuel tank cap. Specifically, the fuel tank opening is disposed inside the vehicle side wall assembly, the fuel tank is disposed inside the vehicle, the fuel tank cap covers the outside of the fuel tank opening, and the fuel tank opening and the fuel tank are connected by an oil delivery hose. Of course, on some special vehicles, the fuel tank opening is directly fixed to the fuel tank, and the fuel tank cap covers the outside of the fuel tank opening. The vehicle provided in this embodiment is not limited to the specific type of vehicle, as long as the fuel tank cap can provide the above two opening methods.

[0064] The vehicle provided in this embodiment further includes a speed sensor, a fuel sensor, an infrared induction system, a control unit, and a remote controller. The speed sensor, the fuel sensor, and the infrared induction system are respectively communicatively connected to the control unit. The remote controller can emit a first signal for opening the fuel tank base cover 2 and a second signal for opening the fuel tank outer cover 3. When the driving member 42 receives the first signal, it can drive the lock core 41 to move back and forth between the first locked position and the first unlocked position. When the electromagnetic lock 5 receives the second signal, the first electromagnet 51 and the second electromagnet 52 can be energized to have a locked state of mutual attraction and an unlocked state of mutual repulsion.

[0065] Figure 6 The flowchart of the fuel tank cap control method provided in this embodiment is shown. As Figure 6 shown, this embodiment also provides a control method for the fuel tank cap. Taking the fuel tank cap and the fuel tank filter 200 as examples, the control method for the fuel tank cap provided in this embodiment will be described:

[0066] According to common application scenarios, the situations where the fuel tank cap can be opened can be distinguished into two forms. One is for refueling operations without removing the filter screen, and the other form requires replacing the fuel tank filter screen 200. A remote control is set, which has a screen-changing button for controlling the movement of the driving member 42 to disassemble the fuel tank base cover 2 and the fuel tank outer cover 3 to replace the fuel tank filter screen 200, and a refueling button for controlling the energization of the first electromagnet 51 and the second electromagnet 52 to attract or repel the connecting portion 321 of the lock tongue 32 to open the fuel tank outer cover 3 to complete the refueling operation.

[0067] S100. The speed sensor detects the driving speed of the vehicle to judge the current driving state of the vehicle, avoiding the situation that the fuel tank cap is unlocked due to misoperation during driving, resulting in fuel leakage. Only when the vehicle is in a stationary state can refueling operations or replacing the fuel tank filter screen 200 be carried out.

[0068] S200. After confirming that the vehicle is in a stationary state, the fuel sensor monitors the fuel level in the fuel tank in real time. When the fuel level in the fuel tank is in a sufficient state, the fuel tank cap cannot be unlocked for refueling operations to prevent too much fuel from being added to the fuel tank, resulting in fuel overflowing from the fuel tank opening 100. Only when the fuel level in the fuel tank is in a low state can the fuel tank cap be unlocked for refueling or disassembling the fuel tank base cover 2 and the fuel tank outer cover 3 to replace the fuel tank filter screen 200.

[0069] S300. After confirming that the vehicle is in a stationary state and the fuel level is low, it can be considered that the fuel tank cap needs to be opened. The control unit draws the conclusion that the fuel filter screen needs to be replaced or refueling operations need to be carried out. The control unit sends a signal to the infrared induction system to make it detect in real time whether the fuel tank key is located around the vehicle, preventing the situation that when the vehicle owner is away from the vehicle, others illegally open the interface cover to steal fuel.

[0070] S400. After confirming that the vehicle is stationary, the fuel level is low, and the fuel tank key is near the vehicle, the control unit issues a reminder signal to remind the vehicle owner that the fuel tank cap needs to be opened to replace the fuel filter screen or carry out refueling operations. The vehicle owner presses the screen-changing button or the refueling button according to the reminder signal to send a first signal or a second signal. The driving member 42 can receive the first signal sent by the remote control to rotate the lock core 41 to make it in the first unlocking position, disassemble the fuel tank base cover 2 and the fuel tank outer cover 3 to replace the fuel tank filter screen 200; the first electromagnet 51 and the second electromagnet 52 can receive the second signal sent by the remote control to be energized to open or close the fuel tank outer cover 3, so that the fuel gun can extend into the fuel injection hole 101 for refueling operations, so as to be able to open the fuel tank cap in different ways according to the different needs of the vehicle owner to meet the needs of the driver.

[0071] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present utility model. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. A fuel tank cap for openably and closably closing a fuel filling hole (101) of a fuel tank opening (100) of a vehicle, wherein a fuel filter screen (200) is detachably installed in the fuel filling hole (101), and is characterized in that, The fuel tank cap comprises: A fuel tank cover seat (1) fixedly connected to the fuel tank opening (100); A fuel tank base cover (2), the fuel tank base cover (2) having a first through hole (21) communicating with the oil filling hole (101), and the fuel tank base cover (2) can be detachably mounted on the fuel tank cover seat (1); The fuel tank outer cover (3) comprises an outer cover body (31), wherein the outer cover body (31) is movably mounted on the fuel tank base cover (2) so that the outer cover body (31) has a closed position covering the first through hole (21) and an open position exposing the first through hole (21).

2. The fuel tank cap according to claim 1, wherein, The fuel tank cover further comprises a locking mechanism (4), the locking mechanism (4) comprising a lock core (41) and a driving member (42), the driving member (42) being mounted on the fuel tank cover seat (1), and the output end of the driving member (42) being in driving connection with the lock core (41); The fuel tank base cover (2) is provided with a first receiving groove (22), and the driving member (42) can drive the lock core (41) to move so that it has a first locking position extending into the first receiving groove (22) and a first unlocking position moving out of the first receiving groove (22).

3. The fuel tank cap according to claim 1, wherein, The fuel tank outer cover (3) also includes a locking tongue (32); a first end of the outer cover body (31) is pivotally connected to the fuel tank base cover (2), and a second end thereof is fixedly connected to the locking tongue (32); and the locking tongue (32) can be detachably engaged with the fuel tank base cover (2).

4. The fuel tank cap according to claim 3, characterized in that, The fuel tank base cover (2) is also provided with a second receiving groove (23) that is engaged with the locking tongue (32); The second end of the outer cover body (31) is pivotally connected to the locking tongue (32), so that the locking tongue (32) can rotate relative to the outer cover body (31), so that the locking tongue (32) has a second locking position in which it is engaged with the second receiving groove (23) and a second unlocking position in which it is moved out of the second receiving groove (23); The fuel tank outer cover (3) further comprises a first elastic member (33), one end of the first elastic member (33) being connected to the outer cover body (31), and the other end of the first elastic member (33) being connected to the locking tongue (32), and the first elastic member (33) being in a compressed state when the locking tongue (32) is in the second locking position.

5. The fuel tank cap according to claim 4, characterized in that, The locking tongue (32) comprises a connecting portion (321) and a locking portion (322) vertically connected to the connecting portion (321); the connecting portion (321) is pivotally connected to the second end of the outer cover body (31); and the locking portion (322) can be clamped in the second receiving groove (23) or avoid the second receiving groove (23).

6. The fuel tank cap according to claim 5, characterized in that, The fuel tank outer cover (3) also includes a second elastic member (34), one end of the second elastic member (34) is fixedly connected to a side of the outer cover body (31) facing the fuel tank port (100), the other end of the second elastic member (34) is fixedly connected to the fuel tank base cover (2), and the second elastic member (34) is in a compressed state when the locking portion (322) is clamped in the second receiving groove (23).

7. The fuel tank cap according to claim 5, characterized in that, The fuel tank cap further includes an electromagnetic lock (5), and the electromagnetic lock (5) includes a first electromagnet (51) and a second electromagnet (52). The first electromagnet (51) is installed on one side of the fuel tank base cover (2) facing the connecting portion (321), and the second electromagnet (52) is installed on one side of the connecting portion (321) facing the fuel tank base cover (2). The first electromagnet (51) and the second electromagnet (52) can be energized to have a locked state of mutual attraction and an unlocked state of mutual repulsion.

8. The fuel tank cap according to any one of claims 1-7, characterized in that, The fuel tank cap further includes a sealing sleeve (6), and the sealing sleeve (6) includes a first sealing portion (61). The first sealing portion (61) covers the fuel injection hole (101). A slit (611) for inserting a fuel filling gun into the fuel tank opening (100) is formed in the first sealing portion (61).

9. The fuel tank cap according to claim 8, wherein, The fuel tank outer cover (3) further includes a convex block (35). The convex block (35) is fixed on the surface of the outer cover body (31) facing the fuel tank opening (100), and the convex block (35) presses against the sealing sleeve (6) when the outer cover body (31) is in the closed position.

10. A vehicle, characterized in that, Comprising the fuel tank cap according to any one of claims 1-9.

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