Fuel filling device and vehicle

Abstract

The utility model discloses a fuel filling device and a vehicle. The fuel filling device comprises a filling pipe; a filler cap; the sensing circuit is arranged on the filling pipe and used for being electrically connected with a control unit of the vehicle, and the sensing circuit is at least partially interrupted; and the movable contact rod is movably arranged on the filling pipe, one end of the movable contact rod corresponds to the filling port and is used for being in transmission fit with the filling cover, and the other end of the movable contact rod selectively moves to be electrically connected with the two ends of the interruption part of the sensing circuit. Therefore, one end of the movable contact rod corresponds to the filling port and is used for being in transmission fit with the filling cover, the other end of the movable contact rod is provided with the electric contact part and corresponds to the interruption part of the sensing circuit, and the electric contact part selectively moves to be electrically connected with the two ends of the interruption part of the sensing circuit, so that the mounting state of the filling cover can be detected; when the filling cover is not installed or not installed in place, the control unit can be combined to give an alarm for reminding, and therefore fuel steam can be prevented from overflowing.

Description

Technical Field

[0001] This utility model relates to the field of vehicle technology, and in particular to a fuel filling device and a vehicle. Background Technology

[0002] With the development of technology and the improvement of people's living standards, vehicles have become an indispensable means of transportation. Vehicles are equipped with refueling devices to replenish fuel and prevent the vehicle from running out of fuel, thus helping to cope with emergencies or long journeys.

[0003] In related technologies, the fuel filling pipe structure only has the function of filling fuel. After the fuel is filled, the filling port cap needs to be put back on the filling pipe. However, due to the negligence of users or filling personnel, the filling port cap may not be put back in time after the fuel is filled, which will cause fuel vapor to overflow and pollute the environment. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide a fuel filling device that can issue an alarm when the filling cap is not installed, thereby effectively preventing fuel vapor from overflowing.

[0005] This utility model further proposes a vehicle.

[0006] The fuel filling device according to this utility model includes: a filling pipe having a filling port; a filling cap selectively covering the filling port; a sensing circuit disposed on the filling pipe and used for electrical connection with a vehicle control unit, the sensing circuit being at least partially interrupted; and a movable contact rod movably disposed on the filling pipe, one end of the movable contact rod corresponding to the filling port and used for transmission engagement with the filling cap, the other end of the movable contact rod having an electrical contact portion corresponding to the interrupted portion of the sensing circuit, the electrical contact portion selectively moving to electrically connect with both ends of the interrupted portion of the sensing circuit.

[0007] Therefore, by aligning one end of the movable contact rod with the filling port and engaging with the filling cap, and providing an electrical contact at the other end corresponding to the interruption of the sensing circuit, the electrical contact can selectively move to electrically connect with both ends of the interruption of the sensing circuit. This allows the installation status of the filling cap to be detected, and an alarm can be triggered in conjunction with the vehicle's control unit when the filling cap is not installed or is not properly installed, thereby preventing fuel vapor from overflowing.

[0008] In some examples of this utility model, the fuel filling device further includes a position sensor, which includes a chip and pins. The two ends of the pins are respectively connected to the chip and form the sensing circuit. The pins are at least partially interrupted.

[0009] In some examples of this utility model, the pin includes a first pin and a second pin, the first pin and the second pin being electrically connected to the two ends of the chip respectively, and the first pin and the second pin being spaced apart to form an interruption portion of the sensing circuit.

[0010] In some examples of this utility model, the movable contact rod includes a drive rod and a contact rod. The drive rod extends in the vertical direction and its first end corresponds to the filling port. The contact rod extends in the horizontal direction and its first end corresponds to the second end of the drive rod. The electrical contact portion is disposed at the second end of the contact rod and corresponds to the interrupted portion of the sensing circuit.

[0011] In some examples of this utility model, the second end of the drive rod is provided with a drive inclined surface, the first end of the contact rod is provided with a transmission inclined surface, and the drive inclined surface and the transmission inclined surface are in contact.

[0012] In some examples of this utility model, a first return spring is sleeved on the drive rod, one end of the first return spring is connected to the drive rod, and the other end is connected to the filling tube.

[0013] In some examples of this utility model, a second return spring is sleeved on the contact rod, one end of the second return spring is connected to the contact rod, and the other end is connected to the filling tube.

[0014] In some examples of this utility model, a mounting base is provided on the outer wall of the filling tube, the position sensor is disposed on the mounting base, and the contact rod extends from the filling tube and passes through the mounting base to correspond to the interrupted portion of the sensing circuit.

[0015] In some examples of this utility model, the outer wall of the filling tube is provided with a perforation, the contact rod passes through the perforation into the mounting base, and a sealing ring is sleeved on the outside of the contact rod, the sealing ring sealingly engaging with the inner circumferential wall of the perforation and the contact rod respectively.

[0016] The vehicle according to an embodiment of the present invention includes: the fuel filling device described above.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a schematic diagram of a fuel filling device according to an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of a fuel filling device according to an embodiment of the present invention.

[0021] Figure label:

[0022] 100. Fueling device;

[0023] 10. Filling pipe; 101. Filling port; 102. Mounting base;

[0024] 30. Position sensor; 301. Sensing circuit; 302. Chip component; 303. Pin component; 3031. First pin component; 3032. Second pin component;

[0025] 40. Moving contact rod; 401. Electrical contact part; 402. Drive rod; 403. Contact rod;

[0026] 4021. Driving inclined plane; 4022. First return spring;

[0027] 4031. Transmission inclined plane; 4032. Second return spring; 4033. Sealing ring;

[0028] 50. Ventilation tube. Detailed Implementation

[0029] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention are described in detail below.

[0030] The following is for reference. Figures 1-2 The present invention describes a fuel filling device 100 according to an embodiment of the present invention, which can be applied to a vehicle.

[0031] Combination Figures 1-2 As shown, the fuel filling device 100 according to this utility model mainly includes: a filling pipe 10, a filling cap, a sensing circuit 301, and a movable contact rod 40. The filling pipe 10 is provided with a filling port 101, which provides a physical channel for fuel to enter the fuel storage device inside the vehicle from external equipment, ensuring that the vehicle's fuel can be replenished and preventing the vehicle from being unable to continue driving due to fuel depletion.

[0032] Furthermore, the refueling cap is selectively placed over the refueling port 101. The main function of the refueling cap is to provide a sealed environment when refueling is not in progress. Specifically, when the vehicle needs to be refueled, the refueling cap must be removed or pulled open to open the refueling port 101 and ensure the normal injection of fuel. After refueling is completed, the refueling cap must be placed back over the refueling port 101 to seal the refueling port 101, preventing dust, moisture and other contaminants from entering the vehicle's fuel storage equipment and preventing fuel vapor from overflowing from the refueling pipe 10.

[0033] Furthermore, the sensing circuit 301 is disposed in the filling pipe 10 and is used for electrical connection with the vehicle's control unit. The sensing circuit 301 is at least partially interrupted. Specifically, this interruption in the sensing circuit 301 allows it to present different circuit states. The sensing circuit 301 transmits different circuit signals to the control unit based on its different circuit states. The control unit performs logical judgments upon receiving the signals from the sensing circuit 301. If the control unit is connected to an alarm device, under specific conditions, the control unit can generate corresponding control signals based on the signals transmitted by the sensing circuit 301 to drive the alarm device to issue an alarm notification.

[0034] Furthermore, a movable contact rod 40 is movably disposed on the filling tube 10. One end of the movable contact rod 40 corresponds to the filling port 101 and is used for transmission cooperation with the filling cap. The other end of the movable contact rod 40 is provided with an electrical contact part 401, which corresponds to the interrupted portion of the sensing circuit 301. The electrical contact part 401 selectively moves to electrically connect with both ends of the interrupted portion of the sensing circuit 301. Specifically, the installation of the filling cap can drive the movable contact rod 40 to move. After the filling cap is installed in place, the electrical contact part 401 of the movable contact rod 40 can electrically connect with both ends of the interrupted portion of the sensing circuit 301, thereby enabling the interrupted portion of the sensing circuit 301 to be in a connected state. When the filling cap is not installed or is not installed correctly, the sensing circuit 301 is in an open circuit state; after the filling cap is correctly installed, the sensing circuit 301 is in a connected state. This converts the installation state of the filling cap into a circuit signal of the sensing circuit 301, enabling the detection of the installation state of the filling cap.

[0035] With this configuration, the circuit state of the sensing circuit 301 differs depending on whether the refueling cap is installed or not. Therefore, the installation status of the refueling cap can be converted into a circuit signal of the sensing circuit 301 and transmitted to the vehicle's control unit. The control unit determines whether to control the relevant equipment or interface in the vehicle to issue an alarm based on the signal transmitted by the sensing circuit 301. This not only enables the detection of the refueling cap's installation status but also provides an alarm to the user when the refueling cap is not installed or is not installed properly, ensuring timely and accurate installation of the refueling cap. This prevents fuel vapor from overflowing from the refueling pipe 10 and improves the environmental performance of the fuel refueling device 100.

[0036] Therefore, by aligning one end of the movable contact rod 40 with the filling port 101 and engaging with the filling cap, and providing an electrical contact 401 at the other end corresponding to the interruption portion of the sensing circuit 301, the electrical contact 401 can be selectively moved to electrically connect with both ends of the interruption portion of the sensing circuit 301. This allows the installation status of the filling cap to be detected, and an alarm can be triggered in conjunction with the vehicle's control unit when the filling cap is not installed, thereby preventing fuel vapor from overflowing.

[0037] In some embodiments of this utility model, the filling cap can be installed using a threaded structure to ensure the stability of the filling cap installation and to ensure a good sealing environment for the filling tube 10.

[0038] Combination Figure 1 and Figure 2 As shown, the fuel filling device 100 also includes a position sensor 30, which includes a chip 302 and pins 303. The two ends of the pins 303 are connected to the chip 302 and form a sensing circuit 301. The pins 303 are at least partially interrupted. Specifically, the position sensor 30 mainly consists of the chip 302 and pins 303, used to detect the installation status of the filling cap. The pins 303 are electrically connected to the chip 302, and electrical connection lines are provided between different pins 303. These electrical connection lines have interrupted sections. By controlling the connection state of these interrupted sections, the circuit state of the sensing circuit 301 is changed. The chip 302 then converts the connection state of the sensing circuit 301 into a simple and effective output signal. This allows the position sensor 30 to output different circuit signals depending on the connection state of the sensing circuit 301. The vehicle control unit can then perform logical judgments based on the circuit signals transmitted by the position sensor 30, thereby detecting the installation status of the filling cap.

[0039] Combination Figure 1 and Figure 2 As shown, the pin 303 includes a first pin 3031 and a second pin 3032. The first pin 3031 and the second pin 3032 are electrically connected to the two ends of the chip 302, respectively. The first pin 3031 and the second pin 3032 are spaced apart to form an interruption part of the sensing circuit 301.

[0040] Specifically, the first pin 3031 and the second pin 3032 are respectively disposed at both ends of the chip 302 in the vertical direction, and there is a certain gap between the first pin 3031 and the second pin 3032. This facilitates the setting of the electrical connection line between the first pin 3031 and the second pin 3032, and facilitates the setting of the interrupted part of the sensing circuit 301. It prevents the space for setting the interrupted part of the sensing circuit 301 from being too small, which would make it difficult for the electrical contact part 401 to make contact with the interrupted part or cause the sensing circuit 301 to change its circuit state due to other factors, thereby reducing the accuracy of the detection result.

[0041] Furthermore, the first pin 3031 and the second pin 3032 are electrically connected to the two ends of the chip 302 in the vertical direction, respectively. In this way, the chip 302 can receive the connection status of the interrupted part of the sensing circuit 301 between the first pin 3031 and the second pin 3032, and perform data processing to convert the connection status of the sensing circuit 301 into a concise and effective output signal. Then, the signal is output through the first pin 3031 or the second pin 3032. This can ensure the effectiveness and rationality of the setting of the sensing circuit 301 and ensure the normal working performance of the position sensor 30.

[0042] Furthermore, one of the first pin 3031 and the second pin 3032 of the position sensor 30 is used to electrically connect to the vehicle control unit. The connection state of the sensing circuit 301 is converted into a simple and effective output signal by the chip 302, and then the signal is output by the pin 303 connected to the control unit. This enables signal transmission between the position sensor 30 and the control unit, allowing the control unit to receive the circuit state of the sensing circuit 301, which helps to realize the detection and alarm function of the filling cap installation status.

[0043] Combination Figure 1 and Figure 2As shown, the movable contact rod 40 includes a drive rod 402 and a contact rod 403. The drive rod 402 extends vertically and its first end corresponds to the filling port 101. The contact rod 403 extends horizontally, and its first end corresponds to the second end of the drive rod 402. An electrical contact portion 401 is disposed at the second end of the contact rod 403 and corresponds to the interruption portion of the sensing circuit 301. Specifically, the installation of the filling cap in the filling port 101 changes the vertical position of the first end of the drive rod 402. The first end of the contact rod 403 corresponds to the second end of the drive rod 402, and the second end of the drive rod 402 can push the first end of the contact rod 403 to move, thereby causing the electrical contact portion 401 at the second end of the contact rod 403 to be displaced in the horizontal direction. When the filling cap is not installed or is not installed properly, the electrical contact part 401 does not contact the interrupted part of the sensing circuit 301, and the sensing circuit 301 is in a short-circuit state. When the filling cap is installed properly, the drive rod 402 can drive the electrical contact part 401 at the second end of the contact rod 403 to generate sufficient displacement, so that the electrical contact part 401 is electrically connected to the interrupted part of the sensing circuit 301, so that the sensing circuit 301 is in a connected state. Thus, the installation status of the filling cap can be fed back through the circuit status of the sensing circuit 301, and the accuracy and reliability of the filling cap installation status detection results can be ensured.

[0044] Combination Figure 1 and Figure 2 As shown, the second end of the drive rod 402 is provided with a drive inclined surface 4021, and the first end of the contact rod 403 is provided with a transmission inclined surface 4031. The drive inclined surface 4021 and the transmission inclined surface 4031 are in contact with each other.

[0045] Specifically, the drive rod 402 extends vertically, and the contact rod 403 extends horizontally. By tightly fitting the drive ramp 4021 at the second end of the drive rod 402 and the transmission ramp 4031 at the first end of the contact rod 403, when the filling cap pushes the drive rod 402 to move vertically downward, the drive ramp 4021 and the transmission ramp 4031 work together to push the contact rod 403 to move horizontally. This causes the electrical contact 401 at the second end of the contact rod 403 to move along the interrupted portion of the horizontal sensing circuit 301. In this way, the installation state of the filling cap at the filling port 101 can be first converted into the moving state of the drive rod 402, and then into the contact state between the electrical contact 401 at the second end of the contact rod 403 and the interrupted portion of the sensing circuit 301. Therefore, the installation state of the filling cap at the filling port 101 can be fed back through the connection state of the interrupted portion of the sensing circuit 301, while also ensuring the accuracy and reliability of the filling cap installation state detection results.

[0046] Combination Figure 1 and Figure 2As shown, a first return spring 4022 is sleeved on the drive rod 402. One end of the first return spring 4022 is connected to the drive rod 402, and the other end is connected to the filling tube 10. Specifically, when an external force is applied to compress or stretch the return spring, it will store elastic potential energy; when the external force is removed, the return spring will generate a restoring force, causing it to return to its original shape. By sleeved the first return spring 4022 on the drive rod 402, with one end of the first return spring 4022 fixedly connected to the drive rod 402 and the other end fixedly connected to the filling tube 10, it is possible to ensure that the first return spring 4022 can effectively deform according to the installation state of the filling cap and the movement state of the drive rod 402, thereby increasing the return speed of the drive rod 402 and improving the detection efficiency of the filling cap installation state. It can also provide a certain resistance to the drive rod 402, preventing displacement of the drive rod 402 and the contact rod 403 due to vibration or impact, thereby reducing the detection error when the filling cap is not installed properly, and improving the accuracy and stability of the filling cap installation state detection results.

[0047] Combination Figure 1 and Figure 2 As shown, a second return spring 4032 is sleeved on the contact rod 403. One end of the second return spring 4032 is connected to the contact rod 403, and the other end is connected to the filling tube 10. Specifically, when an external force is applied to compress or stretch the return spring, it stores elastic potential energy; when the external force is removed, the return spring generates a restoring force, restoring itself to its original shape. By sleeved on the contact rod 403 and fixing one end of the second return spring 4032 to the contact rod 403 and the other end to the filling tube 10, it is possible to ensure that the second return spring 4032 can effectively deform according to the movement state of the contact rod 403, thereby increasing the return speed of the contact rod 403 and improving the detection efficiency of the filling cap installation status. It also provides a certain resistance to the contact rod 403, preventing displacement of the drive rod 402 and the contact rod 403 due to vibration or impact, reducing detection errors when the filling cap is not installed correctly, and improving the accuracy and stability of the filling cap installation status detection results.

[0048] Combination Figure 1 and Figure 2 As shown, a mounting base 102 is provided on the outer wall of the filling tube 10, the position sensor 30 is provided on the mounting base 102, and the contact rod 403 extends out of the filling tube 10 and passes through the mounting base 102 to correspond to the interrupted part of the sensing circuit 301.

[0049] Specifically, by providing a mounting base 102 on the outer wall of the filling pipe 10 and placing the position sensor 30 on the mounting base 102, the position sensor 30 can be quickly positioned and installed, making it convenient to install and remove the position sensor 30, and facilitating subsequent maintenance and replacement. The mounting base 102 can also absorb vibration and impact energy to act as a buffer, which can improve the stability of the position sensor 30 installation, reduce the damage to the position sensor 30 caused by vibration or impact, and extend the service life of the position sensor 30.

[0050] Furthermore, the position sensor 30 and the filling tube 10 are located on both sides of the mounting base 102, and the contact rod 403 is disposed inside the filling tube 10. By extending the contact rod 403 from inside the filling tube 10 and passing through the mounting base 102 to correspond to the interrupted part of the sensing circuit 301, it can be ensured that the contact rod 403 can make effective contact with the interrupted part of the sensing circuit 301 in the position sensor 30. This ensures the rationality and reliability of the fuel filling device 100 structure and helps to realize the function of detecting the installation status of the filling cap.

[0051] Combination Figure 1 and Figure 2 As shown, one end of the second return spring 4032 is connected to the contact rod 403, and the other end is connected to the mounting base 102. Specifically, when an external force is applied to compress or stretch the return spring, it stores elastic potential energy; when the external force is removed, the return spring generates a restoring force, restoring itself to its original shape. By sleeved the second return spring 4032 on the contact rod 403, and fixing one end of the second return spring 4032 to the contact rod 403 and the other end to the mounting base 102, it is possible to ensure that the second return spring 4032 can effectively deform according to the movement state of the contact rod 403, thereby increasing the return speed of the contact rod 403 and improving the detection efficiency of the filling cap installation status. It also provides a certain resistance to the contact rod 403, preventing displacement of the contact rod 403 due to vibration or impact, which could lead to contact with the terminal part of the sensing circuit 301. This reduces the detection error when the filling cap is not installed properly and improves the accuracy and stability of the filling cap installation status detection results.

[0052] Combination Figure 1 and Figure 2 As shown, a perforation is provided on the outer wall of the filling tube 10, and the contact rod 403 passes through the perforation into the mounting base 102. A sealing ring 4033 is sleeved on the outside of the contact rod 403, and the sealing ring 4033 is sealed and fitted with the inner peripheral wall of the perforation and the contact rod 403 respectively.

[0053] Specifically, the contact rod 403 is disposed inside the filling tube 10. By providing a through hole on the outer wall of the filling tube 10, the contact rod 403 passes through the through hole into the mounting base 102. This ensures the rationality and reliability of the structure of the fuel filling device 100, facilitates the electrical connection operation between the electrical contact part 401 on the contact rod 403 and the interrupted part of the sensing circuit 301, and helps to realize the function of detecting the installation status of the filling cap.

[0054] Furthermore, a sealing ring 4033 is fitted over the outside of the contact rod 403, and the sealing ring 4033 is sealed to the inner circumferential wall of the perforation and the contact rod 403 respectively. This ensures a sealed environment for the filling pipe 10, thereby preventing dust, moisture and other contaminants from entering the vehicle's fuel storage equipment through the gap between the contact rod 403 and the perforation, and also preventing fuel vapor in the filling pipe 10 from overflowing from the gap between the contact rod 403 and the perforation.

[0055] Combination Figure 1 and Figure 2 As shown, the fuel filling device 100 also includes a vent pipe 50, which is disposed on the outer wall of the filling pipe 10 and connected to the interior of the filling pipe 10. The vent pipe 50 is spaced apart from the position sensor 30. Specifically, during the fuel filling process, the pressure inside the pipe may change due to the flow of liquid and changes in liquid level. By providing the vent pipe 50, it can not only help balance the pressure inside and outside the filling pipe 10 and prevent problems such as pipe leakage caused by excessive pressure fluctuations, but also improve the smoothness of the filling pipe 10 during the fuel filling process and increase the fuel filling speed. In addition, the vent pipe 50 can be connected to a recovery system to facilitate the recovery and treatment of fuel vapor or exhaust gas.

[0056] Furthermore, the vent pipe 50 and the position sensor 30 are spaced apart to prevent mutual interference between them, which can improve the stability of the filling pipe 10 structure and prevent pipe rupture caused by the close proximity of the openings at the vent pipe 50 and the position sensor 30.

[0057] In some embodiments of this utility model, the vent pipe 50 may also be provided with a sealing structure at the corresponding perforation on the filling pipe 10 to improve the sealing performance of the filling pipe 10.

[0058] Combination Figure 2 As shown, the specific working logic of the fuel filling device 100 according to this utility model is as follows:

[0059] When the filling cap is installed into the filling port 101, the lower edge of the filling cap will push the drive rod 402 to move vertically downward;

[0060] The drive rod 402 pushes the contact rod 403 to move horizontally toward the side closer to the position sensor 30;

[0061] The electrical contact 401 of the contact rod 403 contacts the interrupted part of the sensing circuit 301, so that the interrupted part of the sensing circuit 301 is in the connected state. Combined with the vehicle's control unit, it is determined whether the filler cap has been installed in place.

[0062] When the filler cap is detached from the filler port 101, the drive rod 402 and the contact rod 403 return to their original positions, the sensing circuit 301 is disconnected, and the vehicle's control unit determines whether the filler cap is not assembled.

[0063] The vehicle according to this utility model mainly includes the aforementioned fuel filling device 100. Specifically, because the fuel filling device 100 has a more complete structure and function and good working performance, applying the fuel filling device 100 to a vehicle can remind the user when they forget to replace the filler cap, thus preventing fuel system vapor from overflowing and helping to improve the vehicle's environmental performance.

[0064] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A fuel dispensing device, characterized in that, include: A filling pipe (10) is provided with a filling port (101); A filling cap, which is selectively applied to the filling port (101). A sensing circuit (301) is disposed in the filling tube (10) and is used for electrical connection with the vehicle's control unit, the sensing circuit (301) being at least partially interrupted; A movable contact rod (40) is movably disposed on the filling tube (10). One end of the movable contact rod (40) corresponds to the filling port (101) and is used for transmission cooperation with the filling cap. The other end of the movable contact rod (40) is provided with an electrical contact part (401). The electrical contact part (401) corresponds to the interruption part of the sensing circuit (301). The electrical contact part (401) is selectively moved to electrically connect with both ends of the interruption part of the sensing circuit (301).

2. The fuel dispensing device according to claim 1, characterized in that, It also includes a position sensor (30), which includes a chip (302) and a pin (303). The two ends of the pin (303) are respectively connected to the chip (302) and form the sensing circuit (301). The pin (303) is at least partially interrupted.

3. The fuel dispensing device according to claim 2, characterized in that, The pin (303) includes a first pin (3031) and a second pin (3032). The first pin (3031) and the second pin (3032) are electrically connected to the two ends of the chip (302), respectively. The first pin (3031) and the second pin (3032) are spaced apart to form an interruption portion of the sensing circuit (301).

4. The fuel dispensing device according to claim 2, characterized in that, The movable contact rod (40) includes a drive rod (402) and a contact rod (403). The drive rod (402) extends vertically and its first end corresponds to the filling port (101). The contact rod (403) extends horizontally and its first end corresponds to the second end of the drive rod (402). The electrical contact portion (401) is disposed at the second end of the contact rod (403) and corresponds to the interrupted portion of the sensing circuit (301).

5. The fuel dispensing device according to claim 4, characterized in that, The second end of the drive rod (402) is provided with a drive inclined surface (4021), and the first end of the contact rod (403) is provided with a transmission inclined surface (4031). The drive inclined surface (4021) and the transmission inclined surface (4031) are in contact with each other.

6. The fuel dispensing device according to claim 4, characterized in that, A first return spring (4022) is sleeved on the drive rod (402). One end of the first return spring (4022) is connected to the drive rod (402), and the other end is connected to the filling tube (10).

7. The fuel dispensing device according to claim 4, characterized in that, A second return spring (4032) is sleeved on the contact rod (403). One end of the second return spring (4032) is connected to the contact rod (403), and the other end is connected to the filling tube (10).

8. The fuel dispensing device according to claim 4, characterized in that, The outer wall of the filling tube (10) is provided with a mounting base (102), the position sensor (30) is disposed on the mounting base (102), and the contact rod (403) extends from the filling tube (10) and passes through the mounting base (102) to correspond to the interrupted part of the sensing circuit (301).

9. The fuel dispensing device according to claim 8, characterized in that, The outer wall of the filling tube (10) is provided with a perforation, and the contact rod (403) passes through the perforation to the mounting base (102). A sealing ring (4033) is provided on the outside of the contact rod (403), and the sealing ring (4033) is sealed to the inner circumferential wall of the perforation and the contact rod (403).

10. A vehicle, characterized in that, The fuel dispensing device includes any one of claims 1-9.

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