Aircraft refueling truck

Abstract

The present invention relates to an aircraft refueling vehicle, comprising a cab (1), upper equipment comprising a plurality of actuators (2), a control device and an indicator light assembly (7), wherein the indicator light assembly (7) comprises: a plurality of interlock indicator lights (71), which are arranged outside the cab (1) and corresponding to the plurality of actuators (2), and are used to light up when the actuators (2) actuate and send an interlock signal; a total interlock indicator light (72), which is arranged in the cab (1) and electrically connected to the control device, and is used to light up when there is a lit interlock indicator light (71); an override interlock indicator light (73), which is arranged in the cab (1) and electrically connected to the control device, and is used to light up after the override interlock function is manually forcibly opened when all the actuators (2) are reset but the plurality of interlock indicator lights (71) are still lit; and a power take-off indicator light (74), which is arranged in the cab (1) and electrically connected to the control device, and is used to light up when the engine provides power to the actuators (2).

Description

Technical Field

[0001] The present disclosure relates to the technical field of aircraft refueling equipment, and in particular to an aircraft refueling truck. Background Art

[0002] The aircraft refueling truck is a special equipment, including a cab and upper equipment. The upper equipment includes multiple actuators. In order to enable the operator to understand the working status of the actuators, indicator lights are installed in the cab.

[0003] When the actuator is operating, an interlock signal related to the action is sent to the controller in the cab, which then controls the operating status of the indicator lights, allowing the operator to observe the operating status of the actuator. However, whether the aircraft tanker is performing refueling operations or any other operations, the operator must enter the cab to observe the operating status through the indicator lights. Summary of the Invention

[0004] The present disclosure provides an aircraft refueling vehicle, which enables an operator to understand the operating status of upper mounted equipment more flexibly and conveniently.

[0005] The aircraft refueling vehicle provided by the present disclosure includes a cab, upper equipment, a control device and an indicator light assembly. The upper equipment includes multiple actuators, and the indicator light assembly includes:

[0006] A plurality of interlock indicator lights are provided outside the cab, are provided in one-to-one correspondence with the plurality of actuators, and are configured to illuminate when an interlock signal is issued by the operation of the corresponding actuator;

[0007] a main interlock indicator light, located in the cab and electrically connected to the control device, configured to illuminate when a lit interlock indicator light appears;

[0008] an override interlock indicator light located in the cab and electrically connected to the control device, configured to illuminate when the plurality of actuators have been reset but the plurality of interlock indicator lights remain illuminated, and to illuminate after the override interlock function is manually forcibly opened; and

[0009] The power take-off indicator light is located in the cab and is electrically connected to the control device, and is configured to illuminate when the engine of the aircraft refueling vehicle provides power to the plurality of actuators.

[0010] In some embodiments, the control device is configured to release the brakes of the aircraft refueling truck when the override interlock indicator light is illuminated, and to apply the brakes of the aircraft refueling truck when the power take-off indicator light is illuminated.

[0011] In some embodiments, the control device includes: a plurality of switching amplifiers, each having an input terminal connected to a plurality of actuators in a one-to-one correspondence, and each having an output terminal connected to the control device, the switching amplifiers being configured to amplify corresponding interlock signals and transmit the signals to the control device;

[0012] The plurality of interlock indicator lights are connected to the output ends of the plurality of switch amplifiers in a one-to-one correspondence, or the plurality of interlock indicator lights are all connected to the control device.

[0013] In some embodiments, the main interlock indicator light, the override interlock indicator light, and the power take-off indicator light are located on the inner top of the cab.

[0014] In some embodiments, the control device comprises:

[0015] Internal controls, located in the cab; and

[0016] The external controller is arranged outside the cab and is connected to the internal controller via a wire. The external controller is configured to receive interlocking signals issued when the multiple actuators are in action and transmit the interlocking signals to the internal controller.

[0017] In some embodiments, it also includes a chassis frame and an explosion-proof box, the explosion-proof box is installed on the chassis frame, the external controller is set in the explosion-proof box, a plurality of holes are opened on the side wall of the explosion-proof box, and a plurality of interlock indicator lights are exposed from the plurality of holes in a one-to-one correspondence.

[0018] In some embodiments, a mounting bracket is further included, which is fixed to the chassis frame of the aircraft refueling truck, and the explosion-proof box is detachably suspended and mounted on the mounting bracket.

[0019] In some embodiments, each actuator is provided with a detection component configured to detect the operating status of the actuator;

[0020] Among them, the external controller is connected to multiple detection components through wires, and is configured to receive detection signals from multiple detection components and send them to the internal controller, and the external controller is connected to multiple actuators through wires, and is configured to receive control signals from the internal controller to drive multiple actuators to work.

[0021] In some embodiments, the external controller includes:

[0022] A first sub-controller connected to a portion of the plurality of actuators and the plurality of detection components via wires; and

[0023] a second sub-controller connected to the rest of the plurality of actuators and the plurality of detection components via wires;

[0024] The interlocking signal is received by at least one of the first sub-controller and the second sub-controller.

[0025] In some embodiments, the wire between the internal controller and the external controller includes a first wire and a second wire;

[0026] The first sub-controller is connected to the internal controller via a first wire, the second sub-controller is connected to the first sub-controller via a second wire, or the second sub-controller is connected to the part of the first wire outside the cab via a second wire.

[0027] In some embodiments, the wires between the internal controller and the external controller use a CAN bus.

[0028] In some embodiments, the wiring between the internal controller and the external controller is routed so as to bypass the engine of the aircraft tanker.

[0029] The aircraft refueling vehicle of the disclosed embodiment allows the operator to observe the operating status of the refueling vehicle from both outside and inside the cab, providing flexible and convenient observation. Any abnormality in any actuator during operation can be easily located and stopped immediately. Furthermore, due to the unique environment and operational requirements of aviation fuel refueling, operating status signals are required to control the vehicle to remain stationary during operation to prevent safety accidents caused by abnormal vehicle movement during operation. Accurately understanding the operating status of the upper equipment improves the safety of aircraft refueling vehicle operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 Schematic diagram of the installation positions of indicator light assemblies and external controllers in some embodiments of the aircraft refueling vehicle disclosed herein.

[0032] Figure 2 This is a schematic structural diagram of some embodiments of the aircraft refueling vehicle disclosed herein, in which an indicator light assembly and an external controller are arranged in an explosion-proof box.

[0033] Figure 3 The figure is a schematic diagram of the arrangement and connection relationship of the indicator light assembly in some embodiments of the aircraft refueling vehicle disclosed herein.

[0034] Figure 4 Schematic diagram of some embodiments of the layout and wiring of the control device in the aircraft refueling vehicle disclosed herein.

[0035] Figure 5Schematic diagrams of other embodiments of the layout and wiring of control devices in the aircraft refueling vehicle disclosed herein.

[0036] Figure 6 Schematic diagrams of some further embodiments of the layout and wiring of the control device in the aircraft refueling vehicle disclosed herein.

[0037] Description of reference numerals:

[0038] 1. Cab;

[0039] 2. Executive body;

[0040] 3. Detection components;

[0041] 4. Internal controller;

[0042] 5. External controller; 51. First sub-controller; 52. Second sub-controller;

[0043] 6. Wire; 61. First wire; 62. Second wire;

[0044] 7. Indicator lamp assembly; 71. Interlock indicator lamp; 72. Interlock master indicator lamp; 73. Override interlock indicator lamp; 74. Power take-off indicator lamp; S. Interlock signal;

[0045] 8. Switching amplifier;

[0046] 9. Chassis frame;

[0047] 10. Explosion-proof box; 101. Mounting lug; 102. First mounting hole;

[0048] 11. Mounting bracket; 111. Mounting edge; 112. Second mounting hole. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present disclosure to clearly and completely describe the technical solutions in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is in no way intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without carrying out creative work are within the scope of protection of the present disclosure.

[0050] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0051] In the description of the present disclosure, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present disclosure and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present disclosure; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0052] In the description of the present disclosure, it should be understood that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of the present disclosure.

[0053] In addition, the technical features involved in different embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

[0054] Aircraft refueling trucks are important ground special vehicles used by airports to refuel aviation fuel. Figures 1 to 3 As shown, in some embodiments, the aircraft refueling vehicle includes a cab 1, a chassis frame 9, upper equipment, a control device and an indicator light assembly 7. The cab 1 is arranged on the chassis frame 9. The upper equipment includes an oil pumping system, an oil tank assembly and a lifting mechanism, etc. In order to realize the operation of the upper equipment, the upper equipment includes multiple actuators 2.

[0055] like Figure 3 As shown, the indicator light assembly 7 includes: a plurality of interlock indicator lights 71, an interlock master indicator light 72, an overrunning interlock indicator light 73 and a power take-off indicator light 74. When the indicator lights are on, they can remain on or flash.

[0056] A plurality of interlock indicator lights 71 are provided outside the cab 1 and are provided in one-to-one correspondence with the plurality of actuators 2. The interlock indicator lights 71 are configured to light up when receiving an interlock signal S sent when the corresponding actuator 2 is in operation. Figure 2 As shown, multiple interlock indicator lights 71 can be installed on the explosion-proof box 10. For example, multiple holes can be opened in the explosion-proof box 10 to allow the interlock indicator lights 71 to be exposed through the holes. To facilitate observation by the operator, the explosion-proof box 10 can be located near one side of the chassis frame 9, with the interlock indicator lights 71 facing the side of the vehicle. The operator can observe the operating status of the tanker truck without entering the cab.

[0057] The main interlock indicator light 72 is located within the cab 1, for example, on the top of the cab 1, and is electrically connected to the control device. It is configured to illuminate when an illuminated interlock indicator light 71 appears. Specifically, if at least one actuator is not in its home position, the main interlock indicator light 72 will illuminate. Upon receiving an interlock signal S, the control device is configured to determine whether the main interlock indicator light 72 is illuminated based on multiple interlock signals S. This configuration allows the operator in the cab 1 to quickly determine whether any actuator 2 is in its home position. If an actuator 2 is in its home position, the vehicle brakes are maintained.

[0058] The override interlock indicator light 73 is located within the cab 1, for example, on the top of the cab 1, and is electrically connected to the control device. The indicator light 73 is configured to illuminate even when the plurality of actuators 2 have returned to their original positions but the plurality of interlock indicator lights 71 remain illuminated, and to illuminate after the override interlock function is manually forcibly engaged. Upon manually forcibly engaging the override interlock function, the vehicle's brakes are released, allowing the vehicle to be driven to a repair location.

[0059] A power take-off indicator light 74 is located within cab 1, for example, on the top of cab 1, and is electrically connected to the control device. The indicator light 74 is configured to illuminate when the aircraft refueling vehicle's engine is providing power to the plurality of actuators 2. Illumination of the power take-off indicator light 74 indicates that the engine is providing power to the actuators in the upper body equipment, and the vehicle needs to be braked.

[0060] This embodiment allows the operator to observe the operating status of each actuator in the refueling truck from both outside and inside the cab 1, providing flexible and convenient observation. If any actuator experiences an abnormality during operation, it can be easily located and stopped immediately. Furthermore, due to the unique environment and operational requirements of aviation fuel refueling, operating status signals are required to control the vehicle to remain stationary during operation to prevent safety accidents caused by abnormal vehicle movement during operation. Accurately understanding the operating status of the upper equipment improves the safety of aircraft refueling truck operations.

[0061] In some embodiments, the control device is configured to release the aircraft tanker's brakes when the override interlock indicator light 73 is illuminated, and to apply the aircraft tanker's brakes when the power take-off indicator light 74 is illuminated.

[0062] This embodiment ensures that the vehicle remains in a braked state when any actuator in the upper equipment is not in its original position or when the engine is providing power to the upper equipment, thereby improving the safety of the aircraft refueling vehicle. Furthermore, if multiple actuators 2 have been returned to their original positions but multiple interlock indicator lights 71 remain illuminated, the aircraft refueling vehicle can be released from its brakes for maintenance by manually forcibly opening the override interlock.

[0063] In some embodiments, as Figure 3As shown, the control device also includes: multiple switching amplifiers 8, which are configured to amplify the interlocking signal S; the interlocking signals S emitted when the multiple actuators 2 are in action are all electrically connected to the control device after passing through a switching amplifier 8, and multiple interlocking indicator lights 71 are connected to the multiple switching amplifiers 8 in a one-to-one correspondence.

[0064] This embodiment can generate an interlock signal S when the actuator 2 is actuated. The interlock signal S is amplified by the switching amplifier 8, allowing the control device to more accurately capture it or illuminate the interlock indicator light 71, thus preventing erroneous sensing of the interlock signal S. The amplified interlock signal S is simultaneously transmitted to the control device and the interlock indicator light 71, directly controlling the state of the interlock indicator light 71 through the switching amplifier 8. Upon receiving the interlock signal S, the control device can control the vehicle to enter a braking state.

[0065] Optionally, the interlock signals S generated by the multiple actuators 2 during operation are each electrically connected to the external controller 5 through a switching amplifier 8, and the multiple interlock indicator lights 71 are each connected to the control device. In this embodiment, the amplified interlock signal S is sent to the control device, which then controls the state of the interlock indicator lights 71.

[0066] In some embodiments, the interlock indicator light 72, the overrunning interlock indicator light 73, and the power take-off indicator light 74 are located at the top of the cab 1. This arrangement facilitates observation by the operator. Alternatively, these three indicators may also be located at other locations within the cab 1.

[0067] In some embodiments, as Figure 3 As shown, the control device includes an internal controller 4 and an external controller 5. The internal controller 4 is located inside the cab 1, while the external controller 5 is located outside the cab 1. The internal and external controllers 4 and 5 are connected by a wire 6. For example, the wire 6 may include a single or multiple wires, cables, or a bus. The external controller 5 is configured to receive interlock signals S generated by the multiple actuators 2 during operation and transmit the interlock signals S to the internal controller 4, thereby controlling the vehicle's braking state.

[0068] The aircraft refueling vehicle of the disclosed embodiment is equipped with both an internal controller 4 located within the cab 1 and an external controller 5 located outside the cab 1. Signal lines for the multiple actuators on the aircraft refueling vehicle, used to issue interlock signals S, are connected to the external controller 5 via wires, which in turn are connected to the internal controller 4 via wires. Thus, the operating status of the multiple actuators 2 can be transmitted to the internal controller 4 via the external controller 5. The internal controller 4 then controls the status of the indicator lights within the cab 1 based on the operating status of the multiple actuators and determines whether the aircraft refueling vehicle needs to be braked.

[0069] For example, when the internal controller 4 receives the interlock signal S, it indicates that an actuator has not returned to its position, and it is necessary to light the interlock main indicator light 72 and keep the aircraft refueling truck in the brake state. Due to the special environment and operation objects of aviation fuel refueling, the vehicle needs to be kept braked during the entire vehicle operation to prevent safety accidents caused by abnormal vehicle movement during operation.

[0070] Since there are a large number of actuators on aircraft refueling trucks, this setting method can reduce the number of wiring harnesses introduced from outside the cab into the cab, occupying less space, and eliminating the need to open a large wiring opening on the cab, which is conducive to the sealing of the cab. In addition, the thinner wiring harness makes the wiring more flexible and easy to layout, and can reduce the risk of many wires being exposed, thereby improving the reliability of the control device and thus improving the safety of aircraft refueling truck operations.

[0071] In some embodiments, as Figure 1 and Figure 2 As shown, the aircraft refueling truck also includes a chassis frame 9 and an explosion-proof box 10. The explosion-proof box 10 is installed on the beam of the chassis frame 9. The external controller 5 is arranged in the explosion-proof box 10. The side wall of the explosion-proof box 10 is provided with multiple holes, and multiple interlock indicator lights 71 are exposed from the multiple holes in a one-to-one correspondence.

[0072] This arrangement does not require any changes to the layout of the aircraft refueling truck's onboard equipment and prevents the operation of the external controller 5 from being affected by the operation of the onboard equipment. Furthermore, during refueling, the aircraft refueling truck may experience fuel leaks, which can cause explosions in high-temperature environments. Enclosing the electrical connections of the multiple interlock indicator lights 71 and the external controller 5 within the explosion-proof box 10 protects them from explosions and improves operational reliability and safety.

[0073] Further, if Figure 2 As shown, a protective cover is provided outside the explosion-proof box 10 , and the protective cover is used to be oil-proof and waterproof, so as to improve the reliability and safety of the external controller 5 and the multiple interlock indicator lights 71 .

[0074] like Figure 2 As shown, the aircraft refueling vehicle also includes a mounting bracket 11, which is mounted on the chassis frame 9 of the aircraft refueling vehicle. The explosion-proof container 10 is detachably suspended from the mounting bracket 11. Specifically, the mounting bracket 11 includes a bracket body and a mounting edge 111. The mounting edge 111 is provided with a second mounting hole 112 for fastening the mounting bracket 11 to the chassis frame 9 via fasteners. The mounting edge 111 is arranged vertically. The explosion-proof container 10 is provided with mounting lugs 101 on both sides. The mounting lugs 101 are provided with first mounting holes 102 for fasteners to suspend the explosion-proof container 10 from the mounting bracket 11.

[0075] In this embodiment, the explosion-proof box 10 is detachably mounted by the mounting bracket 11 , which is easy to disassemble and convenient for maintenance of the external controller 5 .

[0076] In some embodiments, the wiring 6 between the internal controller 4 and the external controller 5 is routed so as to bypass the engine of the aircraft refueling truck. If the cab 1 is located far from the installation location of the external controller 5, the wiring distance between the internal controller 4 and the external controller 5 is longer, allowing the wiring 6 to avoid the heat source of the engine and prevent damage to the wiring 6.

[0077] In some embodiments, as Figure 4 As shown, each actuator 2 is provided with a detection component 3, which is configured to detect the operating status of the actuator 2. An external controller 5 is connected to the multiple detection components 3 via wires 6, such as signal lines, and is configured to receive detection signals from the multiple detection components 3 and transmit them to the internal controller 4. Furthermore, the external controller 5 is connected to the multiple actuators 2 via wires 6, and is configured to receive control signals from the internal controller 4 to drive the multiple actuators 2 to operate.

[0078] In the aircraft refueling vehicle of the disclosed embodiment, multiple actuators and multiple detection components are connected to an external controller 5 via wires, which in turn is connected to an internal controller 4 via wires. Consequently, detection signals obtained by the multiple detection components 3 can be transmitted to the internal controller 4 via the external controller 5, allowing the internal controller 4 to adjust control signals based on the operating status of the multiple actuators or control whether the aircraft refueling vehicle should travel. Furthermore, control signals from the internal controller 4 can also be transmitted to the multiple actuators via the external controller 5 to control their operation.

[0079] For example, when the internal controller 4 receives a signal that the actuator is in working state, it needs to keep the aircraft refueling truck in a brake state. Due to the special environment and operation objects of aviation fuel replenishment, the vehicle needs to be kept braked during the entire vehicle operation to prevent safety accidents caused by abnormal vehicle movement during operation.

[0080] Due to the large total number of actuators and corresponding detection components, this setting method can greatly reduce the number of wiring harnesses introduced from outside the cab into the cab, occupying less space, making wiring more flexible and easy to layout, and reducing the danger of more wires being exposed, thereby improving the reliability of the control device and further improving the safety of aircraft refueling truck operations.

[0081] In some embodiments, as Figure 5 and Figure 6As shown, the external controller 5 includes a first sub-controller 51 and a second sub-controller 52. The first sub-controller 51 is connected to a portion of the plurality of actuators 2 and the plurality of detection components 3 via a wire 6, and the second sub-controller 52 is connected to the remaining portion of the plurality of actuators 2 and the plurality of detection components 3 via a wire 6. The interlock signal S is received by at least one of the first sub-controller 51 and the second sub-controller 52.

[0082] Since the aircraft refueling truck needs to perform many functions, the number of actuators 2 and detection components 3 is large, resulting in more leads. By setting the external controller 5 as two separate sub-controllers, it is convenient for external layout and wiring, and the accuracy of wiring can also be improved.

[0083] Optionally, the first sub-controller 51 and the second sub-controller 52 may be arranged side by side at the same position in the vehicle, or may be arranged at different positions according to the positions of the actuator 2 and / or detection component 3 connected thereto, to facilitate wiring.

[0084] Optionally, during wiring, multiple actuators 2 may be connected to the first sub-controller 51 via wires 6, and multiple detection components 3 may be connected to the second sub-controller 52 via wires 6. Alternatively, some actuators 2 and their corresponding detection components 3 may be connected to the first sub-controller 51 via wires 6, and the remaining actuators 2 and their corresponding detection components 3 may be connected to the second sub-controller 52 via wires 6. The signal line for issuing the interlock signal S may be connected to either the first sub-controller 51 or the second sub-controller 52.

[0085] For an embodiment in which the external controller 5 includes a first sub-controller 51 and a second sub-controller 52, as shown in FIG. Figure 5 and Figure 6 The wire 6 between the internal controller 4 and the external controller 5 includes a first wire 61 and a second wire 62 .

[0086] like Figure 5 As shown, the first sub-controller 51 is connected to the internal controller 4 via a first wire 61, and the second sub-controller 52 is connected to the first sub-controller 51 via a second wire 62. Thus, the second sub-controller 52 sends the received detection signal and interlock signal S to the internal controller 4 via the first sub-controller 51, and the control signal sent by the internal controller 4 is sent to the second sub-controller 52 via the first sub-controller 51.

[0087] like Figure 6As shown, the second sub-controller 52 is connected to the portion of the first wire 6 located outside the cab 1 via the second wire 6. As a result, the detection signals and interlocking signal S received by the first and second sub-controllers 51, 52 are combined and sent to the internal controller 4 via the first wire 61. The control signals sent by the internal controller 4 are sent to the first and second sub-controllers 51, 52, respectively, according to the preset address allocation rules.

[0088] The wiring method of this embodiment can further reduce the number of wirings between the internal controller 4 and the external controller 5, making the wiring more flexible and easy to layout, and can reliably protect the wires, thereby improving the reliability of the control device and further improving the safety of the aircraft refueling truck operation.

[0089] Optionally, the first sub-controller 51 and the second sub-controller 52 may also be connected to the internal controller 4 via independent wires 6 respectively.

[0090] In some embodiments, the wire 6 between the internal controller 4 and the external controller 5 adopts a CAN bus. Each CAN bus includes two lines, CAN high and CAN low. Figure 5 and Figure 6 In the embodiment, the internal controller 4 and the external controller 5 are connected via only one CAN bus.

[0091] This embodiment is connected via the CAN bus, which is beneficial to reducing the number of wires and transmitting multiple signals. It also has the advantages of strong real-time performance, long transmission distance, strong anti-electromagnetic interference ability, and low cost.

[0092] In addition to the explosion-proof function, the explosion-proof box 10 in the above embodiment can also achieve the dispersion of the wiring harness, so that the wires at the entrance of the explosion-proof box 10 are connected to multiple actuators 2, multiple detection components 3 and signal lines for transmitting interlock signals S through multiple outlets.

[0093] In some embodiments, the controller described above may be a general-purpose processor, a programmable logic controller (PLC), a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or any appropriate combination thereof, for performing the functions described in the present disclosure.

[0094] The above description is merely an exemplary embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. An aircraft refueling vehicle, characterized in that: The invention comprises a cab (1), a superstructure, a control device and an indicator light assembly (7), wherein the superstructure comprises a plurality of actuators (2), and the indicator light assembly (7) comprises: A plurality of interlock indicator lights (71) are provided outside the cab (1), are provided in one-to-one correspondence with the plurality of actuators (2), and are configured to light up when the corresponding actuator (2) is actuated to send an interlock signal (S); an interlocking indicator light (72), disposed in the cab (1) and electrically connected to the control device, and configured to light up when the interlocking indicator light (71) is lit; an override interlock indicator light (73), disposed in the cab (1) and electrically connected to the control device, configured to remain lit when the plurality of actuators (2) are in their original positions but the plurality of interlock indicator lights (71) remain lit, and to remain lit after the override interlock function is manually and forcibly opened; and A power take-off indicator light (74) is provided in the cab (1) and is electrically connected to the control device, and is configured to light up when the engine of the aircraft refueling vehicle provides power to the plurality of actuators (2).

2. The aircraft refueling vehicle according to claim 1, characterized in that: The control device is configured to release the brakes of the aircraft refueling vehicle when the override interlock indicator light (73) is on, and to brake the aircraft refueling vehicle when the power take-off indicator light (74) is on.

3. The aircraft refueling vehicle according to claim 1, characterized in that: The control device comprises: a plurality of switching amplifiers (8), each input end of which is connected to the plurality of actuators (2) in a one-to-one correspondence, and each output end of which is connected to the control device, and the switching amplifiers (8) are configured to amplify the corresponding interlocking signal (S) and send it to the control device; The plurality of interlock indicator lights (71) are connected to the output ends of the plurality of switch amplifiers (8) in a one-to-one correspondence, or the plurality of interlock indicator lights (71) are all connected to the control device.

4. The aircraft refueling vehicle according to claim 1, characterized in that: The interlocking main indicator light (72), the overriding interlocking indicator light (73) and the power take-off indicator light (74) are arranged on the inner top of the cab (1).

5. The aircraft refueling vehicle according to claim 1, characterized in that: The control device comprises: an internal controller (4) disposed in the cab (1); and An external controller (5) is arranged outside the cab (1) and is connected to the internal controller (4) via a wire (6). The external controller (5) is configured to receive the interlocking signal (S) issued when the plurality of actuators (2) are in operation and transmit the interlocking signal (S) to the internal controller (4).

6. The aircraft refueling vehicle according to claim 5, characterized in that: The invention also includes a chassis frame (9) and an explosion-proof box (10), wherein the explosion-proof box (10) is mounted on the chassis frame (9), the external controller (5) is arranged in the explosion-proof box (10), a plurality of holes are provided on the side wall of the explosion-proof box (10), and the plurality of interlock indicator lights (71) are exposed from the plurality of holes in a one-to-one correspondence.

7. The aircraft refueling vehicle according to claim 6, characterized in that: It also includes a mounting bracket (11), which is fixed on the chassis frame (9) of the aircraft refueling vehicle, and the explosion-proof box (10) is detachably suspended and mounted on the mounting bracket (11).

8. The aircraft refueling vehicle according to claim 5, characterized in that: Each of the actuators (2) is provided with a detection component (3) configured to detect the working state of the actuator (2); The external controller (5) is connected to the plurality of detection components (3) via a wire (6), and is configured to receive detection signals from the plurality of detection components (3) and send the detection signals to the internal controller (4); and the external controller (5) is connected to the plurality of actuators (2) via a wire (6), and is configured to receive control signals from the internal controller (4) to drive the plurality of actuators (2) to operate.

9. The aircraft refueling vehicle according to claim 8, characterized in that: The external controller (5) comprises: a first sub-controller (51) connected to the plurality of actuators (2) and a portion of the plurality of detection components (3) via a wire (6); and a second sub-controller (52) connected to the plurality of actuators (2) and the rest of the plurality of detection components (3) via a wire (6); The interlock signal (S) is received by at least one of the first sub-controller (51) and the second sub-controller (52).

10. The aircraft refueling vehicle according to claim 9, characterized in that: The wire (6) between the internal controller (4) and the external controller (5) includes a first wire (61) and a second wire (62); The first sub-controller (51) is connected to the internal controller (4) via the first wire (61), the second sub-controller (52) is connected to the first sub-controller (51) via the second wire (62), or the second sub-controller (52) is connected to a portion of the first wire (61) located outside the cab (1) via the second wire (62).

11. The aircraft refueling vehicle according to claim 5, characterized in that: The wire (6) between the internal controller (4) and the external controller (5) adopts a CAN bus.

12. The aircraft refueling vehicle according to claim 5, characterized in that: The extension path of the wire (6) between the internal controller (4) and the external controller (5) is configured to bypass the engine of the aircraft refueling vehicle.

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