Pipeline refueling vehicle

Abstract

The invention provides a pipeline refueling vehicle. The pipeline refueling vehicle comprises a chassis, a refueling platform, a first hydraulic cylinder, a hand pump and a first pipeline. Wherein the first hydraulic cylinder is arranged on the chassis, connected with the refueling platform and used for lifting the refueling platform; the first pipeline is connected with the first hydraulic cylinder and the hand pump, and the hand pump pumps hydraulic liquid into the first hydraulic cylinder through the first pipeline. By operating the hand pump, hydraulic liquid can be pumped into the first hydraulic cylinder, and the refueling platform is lifted through the first hydraulic cylinder. The hand pump pumps liquid into the first hydraulic cylinder in a mechanical transmission mode and does not depend on a motor, in the process that the refueling platform is used for refueling an airplane, if the pipeline refueling vehicle abnormally flames out and cannot be started, the refueling platform can be rapidly and reliably lifted through the arrangement, and the safety of the refueling platform is improved. The pipeline refueling truck can be rapidly evacuated from the site, the emergency processing capacity of the pipeline refueling truck on the aircraft refueling operation site is improved, and the pipeline refueling truck is convenient to use.

Description

Technical Field

[0001] This application relates to the field of pipeline refueling vehicles, and more particularly to a pipeline refueling vehicle. Background Technology

[0002] Currently, low-altitude pipeline refueling trucks are in use. When refueling aircraft using the refueling platform, the platform is in its lowest position after the refueling connector is connected to the aircraft fuselage connector. If the pipeline refueling truck experiences an abnormal engine shutdown and cannot be restarted during this process, there is a risk that the refueling platform cannot be raised and the refueling connector cannot be disassembled. Summary of the Invention

[0003] This application provides a pipeline refueling truck capable of lifting a refueling platform in an emergency.

[0004] This application provides a pipeline refueling vehicle, including: a chassis, a refueling platform, a first hydraulic cylinder, a hand pump, and a first pipeline; The first hydraulic cylinder is mounted on the chassis and connected to the refueling platform, and is used to lift the refueling platform. The first pipeline connects the first hydraulic cylinder and the hand pump, and the hand pump pumps hydraulic fluid into the first hydraulic cylinder through the first pipeline.

[0005] By operating the hand-cranked pump, hydraulic fluid can be pumped into the first hydraulic cylinder, which then lifts the refueling platform. The hand-cranked pump uses mechanical transmission to pump fluid into the first hydraulic cylinder, independent of an electric motor. During aircraft refueling, if the pipeline refueling truck experiences an abnormal engine shutdown and cannot be restarted, this system allows for rapid and reliable lifting of the refueling platform, enabling the pipeline refueling truck to quickly leave the site. This enhances the emergency response capabilities of pipeline refueling trucks at aircraft refueling operations and facilitates their use.

[0006] Optionally, it also includes a first check valve, which is located in the first pipeline and between the first hydraulic cylinder and the hand pump, wherein the first check valve is configured to allow hydraulic fluid to flow from the hand pump toward the first hydraulic cylinder.

[0007] Optional features also include: emergency outriggers, a second hydraulic cylinder, and a second pipeline; The second hydraulic cylinder is mounted on the chassis and connected to the emergency outriggers, and is used to lift the refueling platform. The second pipeline connects the second hydraulic cylinder and the hand pump, and the hand pump pumps hydraulic fluid into the second hydraulic cylinder through the second pipeline.

[0008] Optionally, a three-way valve is also included, the three-way valve including a first connecting end, a second connecting end and a third connecting end; the first connecting end is connected to the hand pump, the second connecting end is connected to the first pipeline, and the third connecting end is connected to the second pipeline.

[0009] Optionally, it also includes a first valve, which is disposed between the second connection end and the first hydraulic cylinder, and the first valve can be directly switched between an open state and a closed state; When the first valve is in the open state, the second connection end is connected to the first hydraulic cylinder; When the first valve is closed, the second connection end is not connected to the first hydraulic cylinder.

[0010] Optionally, a second valve is also included, which is disposed between the third connecting end and the second hydraulic cylinder, and the second valve can be directly switched between an open state and a closed state; When the second valve is in the open state, the third connecting end is connected to the second hydraulic cylinder; When the second valve is closed, the third connection end is not connected to the second hydraulic cylinder.

[0011] Optionally, the three-way valve includes a switching device that can switch between a first state and a second state; When the switching device is in the first state, the first connection terminal and the second connection terminal are connected, and the third connection terminal is closed. When the switching device is in the second state, the first connection terminal and the third connection terminal are connected, and the second connection terminal is closed.

[0012] Optionally, it also includes a hydraulic fluid source, a third pipeline, and a third valve. The third pipeline connects the hydraulic fluid source and the hand-cranked pump, and the third valve can be directly switched between an open state and a closed state. When the third valve is in the open state, the hydraulic fluid source is connected to the hand pump; When the third valve is closed, there is no connection between the hydraulic fluid source and the hand-cranked pump.

[0013] Optionally, it also includes a first pump device and a first controller, the first controller being electrically connected to the first pump device to start and stop the first pump device, the first pump device being connected to the hydraulic fluid source and the first hydraulic cylinder; When the first pump device is started, the first pump device pumps hydraulic fluid into the first hydraulic cylinder.

[0014] Optionally, it also includes a second pump device and a second controller, the second controller being electrically connected to the second pump device to start and stop the second pump device, the second pump device being connected to the hydraulic fluid source and the second hydraulic cylinder; When the second pump device is started, it pumps hydraulic fluid into the second hydraulic cylinder.

[0015] Optionally, it also includes a third pump device, a third controller, a fourth pipeline, and a fourth valve. The third controller is electrically connected to the third pump device to start and stop the third pump device. The fourth pipeline connects the first hydraulic cylinder and the hydraulic fluid source. The third pump device is disposed on the fourth pipeline and is used to pump the hydraulic fluid into the hydraulic fluid source.

[0016] Optionally, it also includes a fourth pump device, a fourth controller, a fifth pipeline, and a fifth valve. The fourth controller is electrically connected to the fourth pump device to start and stop the fourth pump device. The fifth pipeline connects the second hydraulic cylinder and the hydraulic fluid source. The fourth pump device is disposed on the fifth pipeline and is used to pump the hydraulic fluid into the hydraulic fluid source. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] Figure 1 The diagram shown is a schematic diagram of one embodiment of the pipeline refueling vehicle of this application.

[0019] Figure 2 The diagram shown is a schematic diagram of another embodiment of the pipeline refueling vehicle of this application.

[0020] Explanation of reference numerals in the attached figures: 110. Refueling platform; 120. First hydraulic cylinder; 130. First pipeline; 140. First check valve; 150. First valve; 200. Hand-cranked pump; 310. Emergency outrigger; 320. Second hydraulic cylinder; 330. Second pipeline; 340. Second check valve; 350. Second valve; 400. Three-way valve; 410. First connection end; 420. Second connection end; 430. Third connection end; 510. Third valve; 520. Hydraulic fluid source; 530. Third pipeline; 610. First pump unit; 620. First controller; 710. Second pump unit; 720. Second controller; 810. Third pump unit; 820. Third controller; 830. Fourth pipeline; 910. Fourth pump unit; 920. Fourth controller; 930. Fifth pipeline; Detailed Implementation

[0021] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0022] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0023] This application provides a pipeline refueling truck. The pipeline refueling truck of this application will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features of the following embodiments and implementations can be combined with each other.

[0024] This application provides a pipeline refueling vehicle, see [link / reference] Figure 1 As shown, the system includes a chassis, a refueling platform 110, a first hydraulic cylinder 120, a hand-cranked pump 200, and a first pipeline 130. The first hydraulic cylinder 120 is mounted on the chassis and connected to the refueling platform 110, used for lifting the refueling platform 110. The first pipeline 130 connects the first hydraulic cylinder 120 and the hand-cranked pump 200, and the hand-cranked pump 200 pumps hydraulic fluid into the first hydraulic cylinder 120 through the first pipeline 130.

[0025] By operating the hand-cranked pump 200, hydraulic fluid can be pumped into the first hydraulic cylinder 120, which then lifts the refueling platform 110. The hand-cranked pump 200 uses mechanical transmission to pump fluid into the first hydraulic cylinder 120, independent of an electric motor. During aircraft refueling using the refueling platform 110, if the pipeline refueling truck experiences an abnormal engine shutdown and cannot be restarted, the above-mentioned mechanism allows for rapid and reliable lifting of the refueling platform 110, enabling the pipeline refueling truck to quickly leave the site. This enhances the emergency response capability of the pipeline refueling truck at aircraft refueling operation sites and facilitates its use.

[0026] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a first check valve 140. The first check valve 140 is located in the first pipeline 130 and between the first hydraulic cylinder 120 and the hand pump 200. Specifically, the first check valve 140 allows hydraulic fluid to flow from the hand pump 200 towards the first hydraulic cylinder 120. The first check valve 140 prevents the risk of hydraulic fluid backflow from the first hydraulic cylinder 120 to the hand pump 200, thus facilitating the rapid and reliable lifting of the refueling platform 110 by operating the hand pump 200 in the event of an abnormal engine shutdown of the pipeline refueling truck. This allows the pipeline refueling truck to quickly evacuate the site, enhancing its emergency response capabilities at aircraft refueling sites and facilitating its use.

[0027] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes an emergency outrigger 310, a second hydraulic cylinder 320, and a second pipeline 330. The second hydraulic cylinder 320 is mounted on the chassis and connected to the emergency outrigger 310, used for lifting the refueling platform 110. The second pipeline 330 connects the second hydraulic cylinder 320 and a hand pump 200, which pumps hydraulic fluid into the second hydraulic cylinder 320 through the second pipeline 330. Operating the hand pump 200 allows hydraulic fluid to be pumped into the second hydraulic cylinder 320. The hand pump 200 pumps fluid into the first hydraulic cylinder 120 using mechanical transmission, independent of an electric motor. During aircraft refueling using the refueling platform 110, if the pipeline refueling truck experiences an abnormal engine shutdown and cannot be restarted, the above-mentioned setup allows for rapid and reliable lifting of the emergency outrigger 310, enabling the pipeline refueling truck to quickly leave the site. This enhances the emergency response capability of the pipeline refueling truck at aircraft refueling operation sites and facilitates its use.

[0028] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a second check valve 340. The second check valve 340 is located in the second pipeline 330 and between the second hydraulic cylinder 320 and the hand pump 200. Specifically, the second check valve 340 is configured to allow hydraulic fluid to flow from the hand pump 200 towards the second hydraulic cylinder 320. The second check valve 340 prevents the risk of hydraulic fluid backflow from the second hydraulic cylinder 320 to the hand pump 200, thus facilitating the rapid and reliable lifting of the emergency outriggers 310 by operating the hand pump 200 in the event of an abnormal engine shutdown of the pipeline refueling truck. This allows the pipeline refueling truck to quickly evacuate the site, enhancing its emergency response capabilities at aircraft refueling sites and facilitating its use.

[0029] In an optional embodiment, see Figure 1As shown, the pipeline refueling truck also includes a three-way valve 400. The three-way valve 400 includes a first connecting end 410, a second connecting end 420, and a third connecting end 430. The first connecting end 410 is connected to the hand pump 200, the second connecting end 420 is connected to the first pipeline 130, and the third connecting end 430 is connected to the second pipeline 330.

[0030] By setting a three-way valve 400, the first pipeline 130 and the second pipeline 330 are integrated relative to the hand pump 200, simplifying the pipeline layout on the refueling truck.

[0031] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a first valve 150. The first valve 150 is located between the second connecting end 420 and the first hydraulic cylinder 120, and can be directly switched between an open and closed state. When the first valve 150 is in the open state, the second connecting end 420 is connected to the first hydraulic cylinder 120. When the first valve 150 is in the closed state, the second connecting end 420 is not connected to the first hydraulic cylinder 120.

[0032] When it is necessary to raise the refueling platform 110, the first valve 150 can be switched to the open state, connecting the second connection end 420 with the first hydraulic cylinder 120. Operating the manual valve allows hydraulic fluid to be pumped into the first hydraulic cylinder 120. When it is not necessary to raise the refueling platform 110, the first valve 150 can be switched to the closed state, disconnecting the second connection end 420 from the first hydraulic cylinder 120. In this case, operating the manual valve will not pump hydraulic fluid into the first hydraulic cylinder 120.

[0033] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a second valve 350. The second valve 350 is located between the third connection end 430 and the second hydraulic cylinder 320, and can be directly switched between open and closed states. When the second valve 350 is in the open state, the third connection end 430 is connected to the second hydraulic cylinder 320. When the second valve 350 is in the closed state, the third connection end 430 is not connected to the second hydraulic cylinder 320. When it is necessary to raise the emergency outrigger 310, the second valve 350 can be switched to the open state, connecting the third connection end 430 to the second hydraulic cylinder 320, and the manual valve can be operated to pump hydraulic fluid into the second hydraulic cylinder 320. When it is not necessary to raise the emergency outrigger 310, the second valve 350 can be switched to the closed state, disconnecting the third connection end 430 from the second hydraulic cylinder 320, and operating the manual valve will not pump hydraulic fluid into the second hydraulic cylinder 320.

[0034] In actual use, if the pipeline refueling truck stalls and cannot be restarted during the refueling process of the aircraft using the refueling platform 110, the refueling platform 110 and the emergency platform can be upgraded by switching the open and closed states of the first valve 150 and the second valve 350 respectively.

[0035] In other embodiments, see Figure 2 As shown, the three-way valve 400 includes a switching device that can switch between a first state and a second state. When the switching device is in the first state, the first connection end 410 and the second connection end 420 are connected, and the third connection end 430 is closed. When the switching device is in the second state, the first connection end 410 and the third connection end 430 are connected, and the second connection end 420 is closed. With the above configuration, the connection or disconnection between the hand pump 200 and the first hydraulic cylinder 120, as well as between the hand pump 200 and the second hydraulic cylinder 320, can be directly switched using the three-way valve 400. This facilitates the integration of the first pipeline 130 and the second pipeline 330 relative to the hand pump 200, simplifying the pipeline layout on the refueling truck.

[0036] In actual use, if the pipeline refueling truck stalls and cannot be restarted during the refueling process of the aircraft using the refueling platform 110, the refueling platform 110 and the emergency platform can be raised respectively by switching the state of the three-way valve 400.

[0037] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a hydraulic fluid source 520, a third pipeline 530, and a third valve 510. The third pipeline 530 connects the hydraulic fluid source 520 and the hand-cranked pump 200, and the third valve 510 can be directly switched between an open and closed state. When the third valve 510 is in the open state, the hydraulic fluid source 520 and the hand-cranked pump 200 are connected; when the third valve 510 is in the closed state, the hydraulic fluid source 520 and the hand-cranked pump 200 are not connected.

[0038] By setting up the hydraulic fluid source 520, the connection and disconnection between the hydraulic fluid source 520 and the hand pump 200 can be adjusted. When it is necessary to use the hand pump 200 to pump hydraulic fluid into the first hydraulic cylinder 120 or the second hydraulic cylinder 320, the third valve 510 can be switched to the open state, and further by switching the states of the first valve 150 and the second valve 350, the hand pump 200 can pump hydraulic fluid into the first hydraulic cylinder 120 or the second hydraulic cylinder 320, thereby achieving the lifting of the refueling platform 110 or the emergency outrigger 310.

[0039] When it is not necessary to use the hand pump 200 to pump hydraulic fluid into the first hydraulic cylinder 120 or the second hydraulic cylinder 320, the third valve 510 can be switched to the closed state to avoid accidental operation of the hand pump 200, which could affect the height of the refueling platform 110 or the emergency outrigger 310 and interfere with the refueling operation of the aircraft.

[0040] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a first pump unit 610 and a first controller 620. The first controller 620 is electrically connected to the first pump unit 610 to start and stop the first pump unit 610. The first pump unit 610 is connected to a hydraulic fluid source 520 and a first hydraulic cylinder 120. When the first pump unit 610 is started, it pumps hydraulic fluid into the first hydraulic cylinder 120.

[0041] The first pump device 610 pumps the hydraulic fluid pumped into the first hydraulic cylinder 120 back to the hydraulic fluid source 520, thereby lowering the refueling platform 110. By separately configuring the pipelines for pumping hydraulic fluid into and out of the first hydraulic cylinder 120, backflow during hydraulic fluid injection or extraction is avoided, allowing for rapid and reliable raising or lowering of the refueling platform 110. This enables the pipeline refueling truck to quickly leave the site, enhances its emergency response capabilities at aircraft refueling sites, and facilitates its use.

[0042] In an optional embodiment, see Figure 1 As shown, the pipeline refueling truck also includes a second pump unit 710 and a second controller 720. The second controller 720 is electrically connected to the second pump unit 710 to start and stop the second pump unit 710. The second pump unit 710 is connected to a hydraulic fluid source 520 and a second hydraulic cylinder 320. When the second pump unit 710 is started, it pumps hydraulic fluid into the second hydraulic cylinder 320.

[0043] The second pump device 710 pumps the hydraulic fluid pumped into the second hydraulic cylinder 320 back to the hydraulic fluid source 520, thereby enabling the emergency outrigger 310 to be lowered. By separately configuring the pipeline for pumping hydraulic fluid into the second hydraulic cylinder 320 and the pipeline for pumping hydraulic fluid out of the second hydraulic cylinder 320, backflow during hydraulic fluid injection or extraction is avoided, thus allowing for quick and reliable raising or lowering of the emergency outrigger 310, facilitating the use of pipeline refueling trucks.

[0044] In an optional embodiment, see Figure 1As shown, the pipeline refueling truck also includes a third pump device 810, a third controller 820, a fourth pipeline 830, and a fourth valve. The third controller 820 is electrically connected to the third pump device 810 to start and stop the third pump device 810. The fourth pipeline 830 is connected to the first hydraulic cylinder 120 and the hydraulic fluid source 520. The third pump device 810 is located in the fourth pipeline 830 and is used to pump hydraulic fluid into the hydraulic fluid source 520.

[0045] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A pipeline refueling truck, characterized in that, include: Chassis, refueling platform, first hydraulic cylinder, hand pump, and first pipeline; The first hydraulic cylinder is mounted on the chassis and connected to the refueling platform, and is used to lift the refueling platform. The first pipeline connects the first hydraulic cylinder and the hand pump, and the hand pump pumps hydraulic fluid into the first hydraulic cylinder through the first pipeline.

2. The pipeline refueling truck according to claim 1, characterized in that, It also includes a first check valve, which is located in the first pipeline and between the first hydraulic cylinder and the hand pump, wherein the first check valve is configured to allow hydraulic fluid to flow from the hand pump toward the first hydraulic cylinder.

3. The pipeline refueling truck according to claim 1, characterized in that, Also includes: Emergency outriggers, a second hydraulic cylinder, and a second pipeline; The second hydraulic cylinder is mounted on the chassis and connected to the emergency outriggers, and is used to lift the refueling platform. The second pipeline connects the second hydraulic cylinder and the hand pump, and the hand pump pumps hydraulic fluid into the second hydraulic cylinder through the second pipeline.

4. The pipeline refueling truck according to claim 3, characterized in that, It also includes a three-way valve, which has a first connection end, a second connection end, and a third connection end; the first connection end is connected to the hand pump, the second connection end is connected to the first pipeline, and the third connection end is connected to the second pipeline.

5. The pipeline refueling truck according to claim 4, characterized in that, It also includes a first valve, which is disposed between the second connection end and the first hydraulic cylinder, and the first valve can be directly switched between an open state and a closed state; When the first valve is in the open state, the second connection end is connected to the first hydraulic cylinder; When the first valve is closed, the second connection end is not connected to the first hydraulic cylinder.

6. The pipeline refueling truck according to claim 4, characterized in that, It also includes a second valve, which is disposed between the third connecting end and the second hydraulic cylinder, and the second valve can be directly switched between an open state and a closed state; When the second valve is in the open state, the third connecting end is connected to the second hydraulic cylinder; When the second valve is closed, the third connection end is not connected to the second hydraulic cylinder.

7. The pipeline refueling truck according to claim 4, characterized in that, The three-way valve includes a switching device that can switch between a first state and a second state; When the switching device is in the first state, the first connection terminal and the second connection terminal are connected, and the third connection terminal is closed. When the switching device is in the second state, the first connection terminal and the third connection terminal are connected, and the second connection terminal is closed.

8. The pipeline refueling truck according to claim 3, characterized in that, It also includes a hydraulic fluid source, a third pipeline, and a third valve. The third pipeline connects the hydraulic fluid source and the hand pump, and the third valve can be directly switched between an open state and a closed state. When the third valve is in the open state, the hydraulic fluid source is connected to the hand pump; When the third valve is closed, there is no connection between the hydraulic fluid source and the hand-cranked pump.

9. The pipeline refueling truck according to claim 8, characterized in that, It also includes a first pump unit and a first controller, the first controller being electrically connected to the first pump unit to start and stop the first pump unit, the first pump unit being connected to the hydraulic fluid source and the first hydraulic cylinder; When the first pump device is started, the first pump device pumps hydraulic fluid into the first hydraulic cylinder; and / or It also includes a second pump unit and a second controller, the second controller being electrically connected to the second pump unit to start and stop the second pump unit, the second pump unit being connected to the hydraulic fluid source and the second hydraulic cylinder; When the second pump device is started, it pumps hydraulic fluid into the second hydraulic cylinder.

10. The pipeline refueling truck according to claim 8, characterized in that, It also includes a third pump unit, a third controller, a fourth pipeline, and a fourth valve. The third controller is electrically connected to the third pump unit to start and stop the third pump unit. The fourth pipeline connects the first hydraulic cylinder and the hydraulic fluid source. The third pump unit is located on the fourth pipeline and is used to pump the hydraulic fluid into the hydraulic fluid source; and / or It also includes a fourth pump device, a fourth controller, a fifth pipeline, and a fifth valve. The fourth controller is electrically connected to the fourth pump device to start and stop the fourth pump device. The fifth pipeline connects the second hydraulic cylinder and the hydraulic fluid source. The fourth pump device is located on the fifth pipeline and is used to pump the hydraulic fluid into the hydraulic fluid source.

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