Emergency rescue maintenance vehicle

Abstract

The utility model relates to the technical field of vehicles, in particular to an emergency rescue maintenance vehicle which comprises a whole vehicle chassis, a maintenance carriage is arranged on the whole vehicle chassis, and the maintenance carriage is provided with a maintenance equipment room. The pressurization system is arranged in the maintenance equipment room and is used for carrying out hydrogen filling on a vehicle-mounted hydrogen system; the inert gas cylinder is filled with inert protective gas, the inert gas cylinder is arranged in the maintenance equipment room, and the pressurization system can be communicated with the inert gas cylinder and the vehicle-mounted hydrogen system so as to carry out airtightness detection and pressure maintaining gas replacement on the vehicle-mounted hydrogen system; and the charging system is arranged in the maintenance equipment room and is used for charging a vehicle to be maintained. According to the utility model, emergency processing and maintenance can be carried out on faults occurring in the driving process of the fuel cell vehicle.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicles, in particular to an emergency rescue and maintenance vehicle. Background Art

[0002] With the development of the automotive industry, more and more new energy vehicles have entered the field of production and life. Among them, hydrogen energy vehicles use hydrogen as the energy source of fuel cells, which can provide stable electric energy for the vehicle while having the characteristic of zero pollution. However, since fuel cell vehicles can only be transported to a fixed maintenance site by a tow truck for repair after a breakdown on the road, it is impossible to perform emergency treatment and inspection on the faults that occur during the driving of fuel cell vehicles.

[0003] Therefore, an emergency rescue and maintenance vehicle is needed to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide an emergency rescue and maintenance vehicle, which can perform emergency treatment and inspection on the faults that occur during the driving of fuel cell vehicles.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] An emergency rescue and maintenance vehicle, comprising:

[0007] A whole vehicle chassis, on which a maintenance carriage is arranged, and the maintenance carriage has a maintenance equipment room;

[0008] A pressurization system, which is arranged in the maintenance equipment room and is used for hydrogen filling of the on-vehicle hydrogen system;

[0009] An inert gas cylinder filled with inert protective gas, which is arranged in the maintenance equipment room, and the pressurization system can connect the inert gas cylinder and the on-vehicle hydrogen system to perform airtight detection and pressure-holding gas replacement on the on-vehicle hydrogen system;

[0010] A charging system, which is arranged in the maintenance equipment room and is used for charging the vehicle to be repaired.

[0011] In some embodiments, the whole vehicle chassis is a fuel cell chassis, and the charging system includes a charging pile, and the charging pile is electrically connected to the fuel cell chassis.

[0012] In some embodiments, the charging system further includes a storage battery, and the storage battery is electrically connected to both the fuel cell chassis and the charging pile.

[0013] In some embodiments, the roof of the maintenance carriage has a roof operation platform, and guardrails are arranged around the roof operation platform.

[0014] In some embodiments, a boarding ladder and a climbing ladder are provided on the outer side of the maintenance carriage. The boarding ladder is used to enter the maintenance carriage, and the climbing ladder is used to climb onto the roof of the maintenance carriage.

[0015] In some embodiments, the maintenance carriage has an operation room for placing tools, and the maintenance equipment room is electrically isolated from the operation room.

[0016] In some embodiments, explosion-proof light sources are provided in the maintenance carriage.

[0017] In some embodiments, the maintenance carriage has an operation room for placing tools. A fixing rack for hanging tools and a tool cabinet for placing tools are provided in the operation room.

[0018] In some embodiments, the maintenance carriage has an operation room for placing tools. A workbench is provided in the operation room, and the workbench has an insulating tabletop.

[0019] In some embodiments, a cleaning machine for cleaning parts to be maintained is provided in the maintenance carriage.

[0020] Advantages of the present utility model:

[0021] For an emergency rescue and maintenance vehicle provided by the present utility model, a maintenance carriage is provided on the vehicle chassis. The maintenance carriage has a maintenance equipment room. A pressurization system is arranged in the maintenance equipment room and is used for hydrogen filling of the vehicle-mounted hydrogen system. An inert gas cylinder filled with inert protective gas is arranged in the maintenance equipment room. The pressurization system can connect the inert gas cylinder and the vehicle-mounted hydrogen system to perform airtight detection and pressure-holding gas replacement on the vehicle-mounted hydrogen system. A charging system is arranged in the maintenance equipment room and is used for charging the vehicle to be repaired. When a fuel cell vehicle breaks down, if it is an ordinary fault, it can be repaired by using the tools in the operation room. When the fuel cell vehicle cannot run due to lack of hydrogen, the pressurization system can be used to fill hydrogen into the vehicle-mounted hydrogen system, so as to quickly replenish hydrogen. When a fault occurs in the vehicle-mounted hydrogen system, the pressurization system can connect the inert gas cylinder and the vehicle-mounted hydrogen system, so as to detect whether there is air leakage in the vehicle-mounted hydrogen system, and the inert protective gas can also be used to replace the gas in the vehicle-mounted hydrogen system, avoiding safety accidents caused by hydrogen leakage and other reasons during subsequent maintenance or transfer of the fuel cell vehicle to a fixed repair point. When the fuel cell vehicle needs emergency power supply, the charging system can be directly used for charging. The use of this emergency rescue and maintenance vehicle can perform emergency treatment and repair on the faults that occur during the driving process of the fuel cell vehicle. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained according to the content of the embodiments of the present utility model and these accompanying drawings.

[0023] Figure 1 is a schematic diagram of an emergency rescue and maintenance vehicle of the present utility model;

[0024] Figure 2 is a schematic diagram of the maintenance compartment in an emergency rescue and maintenance vehicle of the present utility model;

[0025] Figure 3 is a schematic diagram of a perspective inside the maintenance compartment in an emergency rescue and maintenance vehicle of the present utility model;

[0026] Figure 4 is a schematic diagram of another perspective inside the maintenance compartment in an emergency rescue and maintenance vehicle of the present utility model.

[0027] In the figure:

[0028] 1. Vehicle chassis; 2. Maintenance compartment; 21. Roof working platform; 22. Inert gas cylinder; 221. Gas cylinder fixing device; 23. Workbench; 24. Charging system; 241. Charging pile; 25. Pressurization system; 26. Fixing rack; 27. Cleaning machine; 28. Air compressor; 29. Tool cabinet; 3. Climbing ladder; 4. Step ladder; 5. Refrigeration air conditioner; 6. Guardrail; 7. Rolling shutter door. Detailed implementation manners

[0029] Before explaining any embodiment of the present application in detail, it should be understood that the present application is not limited to the structural details and component arrangements described in the following description or shown in the above accompanying drawings.

[0030] In the present application, the terms "include", "comprise", "have" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element.

[0031] In this application, the terms "connect", "combine", "couple", and "mount" can be direct connections, combinations, couplings, or mounts, or indirect connections, combinations, couplings, or mounts. Among them, by way of example, a direct connection means that two parts or components are connected together without the need for an intermediate member, and an indirect connection means that two parts or components are respectively connected to at least one intermediate member, and these two parts or components are connected through the intermediate member. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and can include electrical connections or couplings.

[0032] In this application, those of ordinary skill in the art will understand that the functions performed by components can be performed by one component, multiple components, one part, or multiple parts. Similarly, the functions performed by parts can also be performed by one part, one component, or a combination of multiple parts.

[0033] In this application, the directional terms such as "upper", "lower", "left", "right", "front", and "back" are described based on the orientation and positional relationship shown in the drawings, and should not be construed as a limitation on the embodiments of this application. In addition, in the context, it should also be understood that when it is mentioned that one element is connected "above" or "below" another element, it can not only be directly connected "above" or "below" another element, but also be indirectly connected "above" or "below" another element through an intermediate element. It should also be understood that directional terms such as the upper side, lower side, left side, right side, front side, and back side not only represent the positive direction, but can also be understood as the side direction. For example, the lower side can include directly below, lower left, lower right, lower front, and lower back, etc.

[0034] During the driving of a fuel cell vehicle, in case of an unexpected failure, emergency repair is required. In order to be able to perform emergency treatment and maintenance on the failures that occur during the driving of a fuel cell vehicle, as Figures 1 - 4 shown, the present utility model provides an emergency rescue and maintenance vehicle. The emergency rescue and maintenance vehicle includes a vehicle chassis 1, a supercharging system 25, an inert gas cylinder 22, and a charging system 24.

[0035] Among them, a maintenance carriage 2 is fixedly arranged on the vehicle chassis 1, and the maintenance carriage 2 has a maintenance equipment room. The supercharging system 25 is arranged in the maintenance equipment room, and the supercharging system 25 is used for hydrogen filling of the on-vehicle hydrogen system. The inert gas cylinder 22 is filled with an inert protective gas, the inert gas cylinder 22 is arranged in the maintenance equipment room, and the supercharging system 25 can communicate with the inert gas cylinder 22 and the on-vehicle hydrogen system to perform airtight detection and pressure-holding gas replacement on the on-vehicle hydrogen system. The charging system 24 is arranged in the maintenance equipment room and is used for charging the vehicle to be repaired.

[0036] When a fuel cell vehicle breaks down, if it is an ordinary fault, it can be repaired using the tools in the operation room. When the fuel cell vehicle cannot run due to lack of hydrogen, the hydrogen refueling of the on-vehicle hydrogen system can be carried out by using the pressurization system 25, so as to quickly replenish hydrogen. When the on-vehicle hydrogen system breaks down, the pressurization system 25 can connect the inert gas cylinder 22 and the on-vehicle hydrogen system, so as to detect whether there is air leakage in the on-vehicle hydrogen system, and the gas in the on-vehicle hydrogen system can also be replaced with inert protective gas, avoiding safety accidents caused by hydrogen leakage and other reasons during the subsequent repair or transfer of the fuel cell vehicle to a fixed repair point. When the fuel cell vehicle needs emergency charging, the charging system 24 can be directly used for charging. Using this emergency rescue and maintenance vehicle can carry out emergency treatment and repair of the faults that occur during the driving of the fuel cell vehicle.

[0037] In this embodiment, the on-vehicle hydrogen system is a device related to hydrogen refueling, storage, transportation, supply and control from the hydrogen refueling port to the fuel cell inlet, and is composed of a hydrogen storage cylinder, a fixed support frame, pipelines and valves. When using the pressurization system 25 to fill hydrogen into the fuel cell vehicle to be rescued, according to the requirements of the standard regulations, the transportation of hydrogen needs to be carried out by special vehicles. This emergency rescue and maintenance vehicle cannot be equipped with hydrogen cylinders. When refueling, the pressurization system 25 can be provided by this emergency rescue and maintenance vehicle, and hydrogen is obtained from the hydrogen tank of the special vehicle and filled into the fuel cell vehicle to be rescued.

[0038] In some embodiments, the pressurization system 25 includes a booster pump and a hydrogen filling gun. The hydrogen filling gun is in communication with the booster pump. Through the booster pump, the gas in the inert gas cylinder 22 can be pressurized and then filled into the vehicle-mounted hydrogen system through the hydrogen filling gun for airtight detection or pressure-holding gas replacement. Specifically, the process of airtight detection is as follows: Use the pressurization system 25 and the inert gas cylinder 22 in the maintenance equipment room to perform airtight detection on the fuel cell vehicle to be rescued and repaired. Connect the inert gas cylinder 22 using the pressurization system 25. After filling and pressurizing the vehicle-mounted hydrogen system, drip leak detection liquid at each interface of the vehicle-mounted hydrogen system and observe whether there are bubbles. If no bubbles are generated, it is temporarily determined that the airtightness is good. If bubbles are generated, it indicates that there is gas leakage at the interface and repairs are required. Carry out repairs according to the leakage situation. The process of pressure-holding replacement for the fuel cell vehicle to be rescued is as follows: After detecting that there are no bubbles at the interface of the vehicle-mounted hydrogen system, connect the inert gas cylinder 22 using the pressurization system 25. After filling and pressurizing the vehicle-mounted hydrogen system, observe the pressure gauge. Observe the pressure values at 1 hour, 6 hours, 12 hours, and 24 hours respectively. If the decline rate is less than 5%, it is confirmed that there is no leakage in the vehicle-mounted hydrogen system. If the pressure drops too much, consider the risk of component leakage in the vehicle-mounted hydrogen system. After emptying the hydrogen in the vehicle-mounted hydrogen system, repeatedly fill and empty the inert protection gas in the inert gas cylinder 22 to ensure that there is no hydrogen in the hydrogen storage cylinder. Finally, tow the vehicle to be rescued and repaired back to the vehicle repair factory for systematic repair.

[0039] In some embodiments, the inert gas cylinder 22 is filled with nitrogen or a helium-nitrogen mixture as the inert protection gas. Due to the stable performance of nitrogen or the helium-nitrogen mixture, it can avoid hydrogen deflagration during the process of discharging hydrogen, thus ensuring the smooth progress of work and avoiding safety accidents when performing airtight detection and pressure-holding gas replacement on the vehicle-mounted hydrogen system. Moreover, nitrogen is the main component of air, which is relatively easy to obtain and has a low price, reducing the cost of airtight detection and pressure-holding gas replacement. In this embodiment, the inert gas cylinder 22 has a volume of 40L. In other embodiments, inert gas cylinders 22 with different volumes can be configured according to actual needs, and no further limitations are provided here.

[0040] In some embodiments, a gas cylinder fixing device 221 is provided in the maintenance equipment room for fixing the inert gas cylinder 22. By providing the gas cylinder fixing device 221, the inert gas cylinder 22 can be stably arranged in the maintenance equipment room, avoiding shaking or even tipping during transportation, and ensuring the safety of the emergency rescue and maintenance vehicle during driving.

[0041] In some embodiments, the vehicle chassis 1 is a fuel cell chassis, and the charging system 24 includes a charging pile 241, which is electrically connected to the fuel cell chassis. When charging a fuel cell vehicle to be repaired, the fuel cell chassis can generate electricity, and then supply power externally through the charging pile 241. In other embodiments, a lithium battery chassis can also be used, and the electric energy stored in the lithium battery is used to supply power externally through the charging pile 241. A common fuel chassis can also be used, where the engine drives a generator to generate electricity, and then supplies power externally through the charging pile 241. There are no excessive restrictions here. To protect the charging pile 241, protective side plates and a top plate are provided at the charging pile 241, which can increase safety. Moreover, the top plate can be used as a workbench surface after being reinforced with the protective side plates, thus increasing the workbench surface and facilitating the use of maintenance personnel.

[0042] In some embodiments, the charging system 24 further includes a storage battery, which is electrically connected to both the fuel cell chassis and the charging pile 241. It is used for emergency charging of the fuel cell vehicle. Specifically, during the driving process of this emergency rescue and maintenance vehicle, the storage battery can be charged synchronously, and then the storage battery can supply power to the fuel cell vehicle to be rescued through the charging pile 241. By setting the storage battery, external power supply can be achieved quickly. When the power of the storage battery carried by this emergency rescue and maintenance vehicle is insufficient, the fuel cell chassis can be directly connected to the charging pile 241, and the fuel cell directly supplies power to the vehicle to be rescued. That is, at this time, the fuel cell chassis is the power supply provider. Through the above two forms, external power supply can be effectively guaranteed.

[0043] In some embodiments, the roof of the maintenance compartment 2 has a roof working platform 21, and guardrails 6 are arranged around the roof working platform 21. By arranging the roof working platform 21 on the roof of the compartment, a working platform can be provided for heavy truck fuel cell vehicles or other vehicles to be repaired that require high-altitude operations, meeting the height requirements for maintenance. By setting the guardrails 6, accidental falling accidents of maintenance personnel during the maintenance process can be avoided. In this embodiment, the guardrails 6 are designed to be foldable to reduce their height. When not in use, the guardrails 6 are laid down on the roof working platform 21, and when needed, the guardrails 6 are erected and fixed.

[0044] In some embodiments, a boarding ladder 4 and a climbing ladder 3 are provided on the outer side of the maintenance compartment 2. The boarding ladder 4 is used to enter the maintenance compartment 2, and the climbing ladder 3 is used to climb onto the roof of the maintenance compartment 2. By setting the boarding ladder 4, it is convenient for maintenance personnel to enter and exit the compartment. By setting the climbing ladder 3, it is convenient for maintenance personnel to quickly climb onto the roof working platform 21. To ensure the neat appearance of the emergency rescue and maintenance vehicle, both the boarding ladder 4 and the climbing ladder 3 are retractable. They are taken out and installed in place during use, and stored after use.

[0045] In some embodiments, the door of the maintenance compartment 2 is a rolling shutter door 7. The rolling shutter door 7 has a convenient opening method and labor-saving operation, which is convenient for maintenance operations.

[0046] In some embodiments, the maintenance equipment room and the operation room are electrically isolated. Since there are significant safety risks after hydrogen leakage in fuel cell vehicles, electrically isolating the maintenance equipment room and the operation room can avoid explosion accidents caused by electric sparks during the repair process.

[0047] In some embodiments, an explosion-proof light source is provided in the maintenance compartment 2. Specifically, in this embodiment, an explosion-proof LED light source is used, which can ensure the lighting effect and play an energy-saving role at the same time.

[0048] In some embodiments, a refrigeration air conditioner 5 is equipped on the roof of the emergency rescue maintenance vehicle. The refrigeration air conditioner 5 is connected to the maintenance compartment 2 and can adjust the temperature of the maintenance compartment 2 to ensure a good working environment for maintenance personnel.

[0049] In some embodiments, a fixed rack 26 for hanging tools and a tool cabinet 29 for placing tools are provided in the operation room. Specifically, in order to facilitate maintenance personnel of different heights to use the tools on the fixed rack 26, the fixed rack 26 is an adjustable fixed rack, and the height of the hanging board on the fixed rack 26 can be adjusted to a suitable height and then fixed. Moreover, the hanging board can also be removed, so as to arrange cabinets at the fixed rack 26. By providing the tool cabinet 29, it is convenient to store the maintenance tools and ensure the cleanliness of the operation room.

[0050] In some embodiments, the tools in the operation room include common tools such as tool partitions, binding straps, pipe benders, cutters, and lying vehicle boards. Among them, the lying vehicle board has universal wheels, and maintenance personnel can quickly enter or slide out from under the vehicle using the lying vehicle board.

[0051] In some embodiments, a workbench 23 is provided in the operation room, and the workbench 23 has an insulating tabletop. Through the above settings, it is convenient for maintenance personnel to carry out maintenance work on the workbench 23. In order to facilitate the placement of used tools, drawers are provided in the workbench 23. Using the drawers to store tools can ensure that the insulating tabletop is clean and tidy.

[0052] In some embodiments, a cleaning machine 27 for cleaning the parts to be maintained is provided in the maintenance compartment 2. In this embodiment, the cleaning machine 27 is an ultrasonic cleaning machine, which can effectively clean components such as pipelines.

[0053] In some embodiments, an air compressor 28 is provided in the maintenance compartment 2 to meet the needs of pneumatic tools for various equipment. At the same time, the air compressor 28 can inflate the vehicle tires.

[0054] Obviously, the above embodiments of the present utility model are merely examples for clearly illustrating the present utility model, rather than limitations on the implementation manners of the present utility model. For those of ordinary skill in the art, other different forms of changes or alterations can be made based on the above description. It is not necessary and impossible to enumerate all implementation manners here. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the claims of the present utility model.

Claims

1. Emergency rescue and maintenance vehicle, characterized by: include: A complete vehicle chassis (1), wherein a maintenance compartment (2) is arranged on the complete vehicle chassis (1), and the maintenance compartment (2) has a maintenance equipment room; A boosting system (25), the boosting system (25) being arranged in the maintenance equipment room and used for filling the vehicle-mounted hydrogen system with hydrogen; an inert gas cylinder (22), wherein the inert gas cylinder (22) is filled with an inert protective gas, the inert gas cylinder (22) being arranged in the maintenance equipment room, the pressurizing system (25) being capable of connecting the inert gas cylinder (22) and the vehicle-mounted hydrogen system to perform airtightness detection and pressure-maintaining gas replacement on the vehicle-mounted hydrogen system; A charging system (24), wherein the charging system (24) is arranged in the maintenance equipment room and is used to charge the vehicle to be maintained.

2. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The whole vehicle chassis (1) is a fuel cell chassis, and the charging system (24) comprises a charging pile (241), wherein the charging pile (241) is electrically connected to the fuel cell chassis.

3. The emergency rescue and maintenance vehicle according to claim 2, characterized in that: The charging system (24) also includes a battery, and the battery is electrically connected to the fuel cell chassis and the charging pile (241).

4. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The roof of the maintenance carriage (2) is provided with a roof working platform (21), and guardrails (6) are arranged around the roof working platform (21).

5. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: A step ladder (4) and a climbing ladder (3) are arranged on the outside of the maintenance carriage (2); the step ladder (4) is used to enter the maintenance carriage (2), and the climbing ladder (3) is used to climb to the roof of the maintenance carriage (2).

6. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The maintenance carriage (2) has an operating room for placing tools, and the maintenance equipment room is electrically isolated from the operating room.

7. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: An explosion-proof light source is arranged in the maintenance carriage (2).

8. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The maintenance carriage (2) has an operating room for placing tools, and the operating room is provided with a fixing frame (26) for hanging tools and a tool cabinet (29) for placing tools.

9. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The maintenance carriage (2) has an operating room for placing tools, and a workbench (23) is arranged in the operating room, and the workbench (23) has an insulating tabletop.

10. The emergency rescue and maintenance vehicle according to claim 1, characterized in that: The maintenance carriage (2) is provided with a cleaning machine (27) for cleaning the parts to be maintained.

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