Mobile power supply vehicle

Abstract

This application relates to the field of power supply vehicle technology, and discloses a mobile power supply vehicle. The mobile power supply vehicle includes a chassis assembly, a power supply assembly, a drive assembly, and a steering assembly. The power supply assembly is disposed on the upper side of the chassis assembly. The drive assembly includes a drive motor and a drive wheel component. The drive motor is disposed on the chassis assembly and connected to the drive wheel component to drive the drive wheel component to rotate. The steering assembly includes a handle component, a connecting component, and a steering wheel component. The handle component is rotatably connected to the chassis assembly, and the steering wheel component is rotatably disposed on the chassis assembly. The connecting component connects the handle component and the steering wheel component respectively. This application combines electric drive with mechanical steering transmission, ensuring both convenient mobility and precise and reliable steering, significantly improving the overall vehicle flexibility.

Description

1. Description of the Mobile Power Supply Vehicle Technical Field This application relates to the technical field of power supply vehicles, and in particular to a mobile power supply vehicle. Background Art Mobile power supply vehicles are widely used as temporary or backup power supply equipment in scenarios such as industrial construction, field operations, emergency rescue, and large-scale event support. Traditional mobile power supply vehicles are usually large in size and heavy in weight, and rely mainly on manual pushing or pulling or external towing equipment for movement. On complex road surfaces (such as muddy construction sites, gravel roads, and slopes), movement is extremely difficult, the labor intensity of operators is high, and the movement efficiency is low. In addition, the steering system of existing mobile power supply vehicles is mostly a simple universal wheel structure, which is not flexible in steering and makes it difficult to achieve precise steering in narrow spaces. Therefore, there is an urgent need for a mobile power supply vehicle that is labor-saving to move, flexible in steering, and has a reliable structure. Summary of the Invention This application provides a mobile power supply vehicle that can effectively solve the problems of laborious movement and inflexible steering in the prior art. This application provides a mobile power supply vehicle, which includes a chassis assembly, a power supply assembly, a drive assembly, and a steering assembly. The power supply assembly is disposed on the upper side of the chassis assembly. The drive assembly includes a drive motor and a drive wheel component. The drive motor is mounted on the chassis assembly and connected to the drive wheel component to drive the drive wheel component to rotate. The steering assembly includes a handle component, a connecting component, and a steering wheel component. The handle component is rotatably connected to the chassis assembly, and the steering wheel component is rotatably mounted on the chassis assembly. The connecting component connects the handle component and the steering wheel component respectively. In some embodiments, the steering wheel component includes a first bracket, a first wheel, a first link, a second bracket, and a second wheel. The first bracket is rotatably connected to the chassis assembly, with one end connected to the first wheel and the other end connected to one end of the first link. The second bracket is rotatably connected to the chassis assembly, with one end connected to the second wheel and the other end connected to the other end of the first link. The first wheel and the second wheel are respectively located on both sides of the chassis assembly. The first link is connected to the connecting component HK 30134891 A 2. In some embodiments, the first bracket is an L-shaped bracket with a first right-angle portion rotatably connected to the chassis assembly; and / or, the second bracket is an L-shaped bracket with a second right-angle portion rotatably connected to the chassis assembly. In some embodiments, the connecting component includes an eccentric wheel and a second connecting rod. The eccentric wheel has a non-coaxial first rotating portion and a second rotating portion. The first rotating portion is coaxially connected to the handle component and rotates synchronously with the handle component to drive the eccentric wheel to rotate. The second rotating portion is connected to one end of the second connecting rod, and the other end of the second connecting rod is connected to either the first bracket or the second bracket.In some embodiments, the chassis assembly includes a mounting bracket; the handle assembly includes an operating disc, a third link, and a pivot, the pivot being rotatably connected to the mounting bracket, one end of the third link being connected to the upper part of the pivot, the other end of the third link being connected to the operating disc, and the lower part of the pivot being connected to the first rotating part of an eccentric wheel. The operating disc is electrically connected to a drive motor, which is configured to drive a drive wheel to rotate when receiving a movement command from the operating disc, and to run a self-locking program to lock the drive wheel when no movement command from the operating disc is received. In some embodiments, the handle assembly includes a first rotating shaft, the third link and the pivot are connected via the first rotating shaft, the rotation axis of the first rotating shaft is perpendicular to the rotation axis of the pivot, and the rotation axis of the pivot is perpendicular to the plane of the chassis assembly. In some embodiments, the steering assembly further includes a resilient reset member, which is connected to both the chassis assembly and the third link, and is configured to drive the third link to reset. In some embodiments, the mobile power supply vehicle includes a first cover and a second cover, both connected to a chassis assembly. The first cover covers a portion of the connecting components and pivots, and the second cover covers a portion of the drive motor. In some embodiments, the power assembly includes a housing and a battery device. The housing is disposed on the upper side of the chassis assembly, and the interior of the housing forms a battery compartment. The housing has an opening communicating with the battery compartment. The battery device is disposed within the battery compartment and includes a battery body, an inverter, and a power connector. The inverter is connected to the battery body, and the power connector is exposed through the opening. In some embodiments, the battery device includes a fire suppression component disposed on the battery body. The fire suppression component includes a temperature sensor and a fire extinguisher. The temperature sensor is electrically connected to the fire extinguisher and is disposed on the battery body to detect the temperature of the battery body. The fire extinguisher is configured to spray extinguishing aerosol onto the battery body upon activation. The beneficial effects of this application are significant: First, the drive motor provides auxiliary power, which, combined with the flexible steering wheel components, greatly reduces the burden of manual movement, making it particularly suitable for complex construction road surfaces. Second, the transmission chain employing an eccentric wheel combined with the first connecting rod and L-shaped bracket provides fast steering response, a large steering angle, and good stability, while also being compact and space-saving. Third, the control panel and pivot are connected via a vertical axis and a horizontal rotating shaft, achieving dual-degree-of-freedom control, conforming to ergonomics and ensuring comfortable use. Fourth, a built-in fire suppression component monitors battery temperature in real time, automatically spraying aerosol to extinguish fires, while a cover protects moving parts, providing multiple layers of safety. Fifth, the power supply unit integrates an inverter and multiple output interfaces to meet diverse power needs in industrial settings. In summary, this application achieves breakthrough improvements in mobility, steering reliability, operational comfort, and safety protection. Brief Description of the Drawings: To more clearly illustrate the technical solutions in the specific embodiments of this application, the drawings used in the description of the specific embodiments will be briefly introduced below.In all the accompanying drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale. Figure 1 is a perspective view of a mobile power supply vehicle according to an embodiment of this application; Figure 2 is a bottom view of a mobile power supply vehicle according to an embodiment of this application; Figure 3 is a side view of a mobile power supply vehicle according to an embodiment of this application; Figure 4 is another side view of a mobile power supply vehicle according to an embodiment of this application; Figure 5 is a bottom view of a mobile power supply vehicle according to another embodiment of this application. The reference numerals are as follows: 100, Portable power supply vehicle; 10, Chassis assembly; 11, Mounting bracket; 20, Power supply assembly; 21, Housing; 211, Opening; 22, Power connection component; 30, Drive assembly; 31, Drive motor; 32, Drive wheel assembly; 40, Steering assembly; 41, Handle assembly; 411, Control panel; 412, Third link; 413, Pivot component; 414, First pivot; 42, Connecting component; 421, Eccentric wheel; 4211, First rotating part; 4212, Second rotating part; 422, Second link; 43, Steering wheel assembly; 431, First bracket; 4311, First right-angled part; 432, First wheel; HK 30134891 A 4 433, First link; 434, Second bracket; 4341, Second right-angled part; 435, Second wheel; 44. Elastic reset element; 50. First cover plate; 60. Second cover plate. Detailed Description To facilitate understanding of this application, the following description, in conjunction with the accompanying drawings and specific embodiments, will provide a more detailed description of the application. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "upper," "lower," "inner," "outer," "vertical," "horizontal," etc., used in this specification indicate orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other. Referring to Figures 1 to 3, this application provides a mobile power supply vehicle 100, which includes a chassis assembly 10, a power supply assembly 20, a drive assembly 30, and a steering assembly 40. The chassis assembly 10 serves as the load-bearing frame of the entire vehicle and possesses sufficient structural strength. The power supply assembly 20 is disposed on the upper side of the chassis assembly 10; the power supply assembly 20 provides electrical energy output to the entire vehicle to supply power to external devices. The drive assembly 30 includes a drive motor 31 and a drive wheel component 32. The drive motor 31 is disposed on the chassis assembly 10 and connected to the drive wheel component 32 to drive the drive wheel component 32 to rotate, thereby realizing the forward or backward movement of the entire vehicle. The steering assembly 40 includes a handle component 41, a connecting component 42, and a steering wheel component 43. The handle component 41 (HK 30134891 A 5) is rotatably connected to the chassis assembly 10, allowing the operator to rotate it. The steering wheel component 43 is rotatably mounted on the chassis assembly 10. The connecting component 42 connects the handle component 41 and the steering wheel component 43, transmitting the rotational motion of the handle component 41 to the steering wheel component 43, thereby achieving vehicle steering. With this configuration, the operator only needs to rotate the handle component 41 to drive the steering wheel component 43 to deflect via the connecting component 42, achieving flexible steering. Simultaneously, the drive motor 31 provides auxiliary power, greatly reducing the burden of manual movement. Compared with existing technologies, this application combines electric drive with mechanical steering transmission, ensuring both convenient movement and precise and reliable steering, significantly improving the overall vehicle flexibility. It is understood that in some embodiments, the drive motor 31 can obtain electrical energy through the power supply assembly 20. In other embodiments, the mobile power supply vehicle 100 may also have a battery module independent of the power supply assembly 20. The battery module is disposed on the chassis assembly 10 and provides power to the drive motor 31. In some embodiments, referring to Figures 2 and 3, the steering wheel assembly 43 includes a first bracket 431, a first wheel 432, a first connecting rod 433, a second bracket 434, and a second wheel 435. The first bracket 431 and the second bracket 434 are each rotatably connected to the chassis assembly 10 independently. The first wheel 432 is connected to one end of the first bracket 431, and the second wheel 435 is connected to one end of the second bracket 434. The two ends of the first connecting rod 433 are respectively connected to the other ends of the first bracket 431 and the second bracket 434, thereby linking the first bracket 431 and the second bracket 434 together.The first link 433 is also connected to the connecting component 42. When the connecting component 42 drives the first link 433 to move laterally, the first link 433 simultaneously pushes the first bracket 431 and the second bracket 434 to swing around their respective rotation axes, thereby causing the first wheel 432 and the second wheel 435 to deflect synchronously, achieving steering. The first wheel 432 and the second wheel 435 are located on both sides of the chassis assembly 10, respectively. The first wheel 432 and the second wheel 435 maintain a reasonable angle difference when steering, reducing tire wear and improving steering stability. At the same time, the linkage method is simple in structure, low in cost, and has direct transmission and fast steering response. In some embodiments, referring to Figure 2, the first bracket 431 is an L-shaped bracket. The first bracket 431 has a first right angle portion 4311, which serves as a rotation fulcrum and is rotatably connected to the chassis assembly 10. The two arms of the first bracket 431 are respectively connected to one end of the first wheel 432 and the first link 433. The second bracket 434 is an L-shaped bracket with a second right-angle portion 4341. The second right-angle portion 4341 serves as a pivot point and is rotatably connected to the chassis assembly 10. The two arms of the second bracket 434 are respectively connected to the second wheel 435 and the other end of the first connecting rod 433. In this embodiment, the first bracket 431 and the second bracket 434 adopt an L-shaped structure, which can convert the horizontal movement of the first connecting rod 433 into the swing of the first wheel 432 and the second wheel 435, resulting in high motion conversion efficiency. At the same time, the right-angle portion provides a clear axis of rotation, making the swing of the bracket smooth and reliable. In addition, the L-shaped bracket has a compact structure and occupies little space, which is beneficial to the miniaturization design of the whole vehicle. In some embodiments, please refer to Figures 2 and 3. The connecting component 42 includes an eccentric wheel 421 and a second connecting rod 422. The eccentric wheel 421 is provided with a non-coaxial first rotating part 4211 and a second rotating part 4212, similar to a cam structure. The handle component 41 is coaxially connected to the first rotating part 4211. When the handle component 41 rotates, the eccentric wheel 421 rotates accordingly, and the second rotating part 4212 will rotate around the first rotating part 4211. The second rotating part 4212 is connected to one end of the second connecting rod 422, and the other end of the second connecting rod 422 is connected to the first bracket 431 or the second bracket 434. Therefore, the rotation of the eccentric wheel 421 will drive the first bracket 431 or the second bracket 434 to swing through the second connecting rod 422, and then drive the other bracket to move synchronously through the first connecting rod 433.This eccentric wheel 421 combined with linkage transmission has advantages such as compact structure, large transmission angle, and good steering linearity. There is a definite correspondence between the angle at which the operator rotates the handle component 41 and the wheel deflection angle, facilitating precise control of the steering amplitude by the driver. In some embodiments, please refer to Figures 2 and 3, a mounting bracket 11 is fixed on the chassis assembly 10. The handle component 41 includes an operating disc 411, a third link 412, and a pivot 413, which is rotatably connected to the mounting bracket 11. The upper part of the pivot 413 is connected to the operating disc 411 via the third link 412, and the lower part of the pivot 413 is connected to the first rotating part 4211 of the eccentric wheel 421. The operating disc 411 is electrically connected to the drive motor 31 and is used to control the start / stop, rotation speed, and forward / reverse rotation of the drive motor 31. When the operator holds and rotates the control panel 411, the control panel 411 drives the pivot 413 to rotate around its rotation axis via the third link 412. The pivot 413 then transmits the rotation to the lower eccentric wheel 421. In this way, the rotation angle of the control panel 411 is accurately transmitted to the steering system. At the same time, the electronic control function integrated on the control panel 411 allows the operator to control the vehicle speed and the forward and reverse rotation of the drive motor 31 while steering, realizing centralized human-machine interaction. The presence of the third link 412 allows the position of the control panel 411 to be raised relative to the chassis assembly 10, which is ergonomic and allows the operator to easily operate it without bending over. In some embodiments, the drive motor is configured to drive the drive wheel to rotate when it receives a motion command from the control panel, and to run a self-locking program to lock the drive wheel when it does not receive a motion command from the control panel. The motion command may include a forward command or a reverse command. Furthermore, the control panel is equipped with corresponding forward and reverse buttons. When the operator presses the forward button to generate a forward command, the drive motor receives the command and rotates forward, thereby driving the drive wheel to rotate forward, causing the vehicle to move forward. When the operator presses the reverse button to generate a reverse command, the drive motor receives the command and rotates in reverse, thereby driving the drive wheel to rotate in the opposite direction, causing the vehicle to move backward. When the operator leaves the control panel, i.e., when there is no need to drive the mobile power supply vehicle, the drive motor, without receiving a movement command from the control panel, will run a self-locking program to lock the drive wheel, thus keeping the mobile power supply vehicle stationary and locked, preventing it from rolling away. As an example, the chassis assembly of the mobile power supply vehicle can be equipped with a central processing unit and a memory, wherein the central processing unit, memory, control panel, and drive motor are communicatively connected. The self-locking program is stored in the memory. When the operator leaves the control panel, the central processing unit runs the self-locking program to control the drive motor to enter a speed closed-loop mode, with the target speed set to zero.The encoder of the drive motor detects minute rotations of the drive wheel in real time (e.g., slippage). The central processing unit calculates the reverse torque and controls the drive motor to return the drive wheel to its original position. In some embodiments, referring to Figures 3 and 4, the handle component 41 includes a first rotating shaft 414. A third link 412 is connected to a pivot 413 via the first rotating shaft 414. The rotation axis of the first rotating shaft 414 is perpendicular to the rotation axis of the pivot 413, and the rotation axis of the pivot 413 is perpendicular to the plane of the chassis assembly 10. This allows the third link 412 to swing relative to the pivot 413 about a horizontal axis, while the pivot 413 itself rotates about a vertical axis. With this structure, on the one hand, the operator can achieve steering control by rotating the control panel 411 about a vertical axis; on the other hand, the operator can adjust the height or angle of the control panel 411 by pushing or pulling it back and forth about a horizontal axis, or achieve additional control functions (such as acceleration / deceleration). This structure allows the control panel 411 to function as both steering and pitch adjustment or speed control, greatly improving operational flexibility and comfort. Simultaneously, the vertical pivot axis ensures efficient steering transmission. In some embodiments, referring to Figure 4, the steering assembly 40 further includes a resilient reset member 44, which is connected to both the chassis assembly 10 and the third link 412. The resilient reset member 44 is configured to drive the third link 412 to reset. As can be seen from the above structure, the third link 412 can rotate around the first pivot 414, allowing the operator to support the control panel 411. The resilient reset member 44, positioned between the chassis assembly 10 and the third link 412, pushes the third link 412 to reset, thus maintaining the third link 412 in a vertical position. In some embodiments, referring to Figures 4 and 5, the mobile power supply vehicle 100 includes a first cover plate 50 and a second cover plate 60. Both the first cover plate 50 and the second cover plate 60 are connected to the chassis assembly 10. The first cover plate 50 covers a portion of the connecting component 42 and the pivot 413, and the second cover plate 60 covers a portion of the drive motor 31. As an example, the first cover plate 50 covers the lower part of the connecting component 42, such as the eccentric wheel 421, the second connecting rod 422, the first connecting rod 433, and the pivot 413, serving to prevent dust, mud, and foreign object jamming, while also protecting the operator from injury from moving parts. The second cover plate 60 covers a portion of the drive motor 31, also providing protection and reducing motor noise.In a further embodiment, the first cover plate 50 and the second cover plate 60 are detachably connected to the chassis assembly 10 for easy maintenance. In some embodiments, referring to FIG1, the power assembly 20 includes a housing 21 and a battery device (not shown). The housing 21 is disposed on the upper side of the chassis assembly 10, and the interior of the housing 21 forms a battery compartment. The housing 21 has an opening 211 communicating with the battery compartment; the battery device is disposed within the battery compartment. The battery device includes a battery body (not shown), an inverter (not shown), and a power connector 22. The inverter is connected to the battery body, and the power connector 22 is exposed through the opening 211 for easy connection of electrical equipment by the user. As an example, the battery body can be a lithium-ion battery pack, and the inverter converts the DC power from the battery body into AC power to meet the needs of different loads. The power connector 22 may include a DC output interface, an AC output interface, and a charging port. This modular design makes the battery device easy to install, replace, and maintain, while the housing 21 provides physical protection for the internal components. In some embodiments, the battery device includes a fire suppression component (not shown) disposed on the battery body. The fire suppression component includes a temperature sensor (not shown) and a fire extinguisher (not shown). The temperature sensor is electrically connected to the fire extinguisher and is disposed on the battery body to detect the temperature of the battery body. The fire extinguisher is configured to spray extinguishing aerosol onto the battery body upon activation. This embodiment integrates an active fire suppression function into the power supply assembly 20. The temperature sensor is in close contact with the surface of the battery body to monitor the battery temperature in real time. The fire extinguisher contains an aerosol extinguishing agent, and its trigger circuit is electrically connected to the temperature sensor. When the temperature sensor detects that the battery temperature exceeds a preset safety threshold (e.g., 80°C) or detects flame characteristics, the fire extinguisher immediately activates, spraying aerosol onto the battery body to quickly extinguish the fire. The fire suppression component is fully automated, has a fast response speed, and requires no manual intervention, greatly improving the safety of the mobile power supply vehicle 100 when unattended or operating at night. The aerosol extinguishing agent has the advantages of being residue-free, non-conductive, and harmless to electronic equipment, making it particularly suitable for the enclosed electrical environment of the battery compartment. This application provides a mobile power supply vehicle 100, the overall structure of which is as follows: a chassis assembly 10 serves as the supporting base, a power supply assembly 20 is mounted on the upper side, and a drive assembly 30 and a steering assembly 40 are arranged on the lower side. The drive assembly 30 includes a drive motor 31 and a drive wheel assembly 32. The drive motor 31 drives the drive wheel to rotate, providing auxiliary power to the entire vehicle.The steering assembly 40 consists of a handle component 41, a connecting component 42, and a steering wheel component 43 (HK 30134891 A 9). The handle component 41 is rotatably connected to the chassis. The operating panel 411 is connected to the pivot component 413 via a third link 412. The lower part of the pivot component 413 is connected to an eccentric wheel 421. The eccentric wheel 421 drives the L-shaped first bracket 431 and second bracket 434 via a second link 422. The L-shaped bracket drives the first wheels 432 and second wheels 435 on both sides to rotate synchronously via the first link 433, achieving precise steering. The power assembly 20 includes a housing 21, a battery body, an inverter, and a power plug-in component 22. It also integrates a temperature sensor and an aerosol fire extinguisher, forming an active fire suppression system. In addition, the first cover plate 50 and the second cover plate 60 provide protection for the connecting rod components and the drive motor 31, and also protect the operator. The beneficial effects of this application are significant: First, the drive motor 31 provides auxiliary power, which, together with the flexible steering wheel component 43, greatly reduces the burden of manual movement, making it particularly suitable for complex construction sites. Second, the use of an eccentric wheel 421 combined with the transmission chain of the first connecting rod 433 and the L-shaped bracket results in fast steering response, large steering angle, good stability, and a compact structure that saves space. Third, the control panel 411 and the pivot component 413 are connected via a vertical axis and a horizontal rotating shaft, achieving dual-degree-of-freedom control, which is ergonomic and comfortable to use. Fourth, the built-in fire suppression component monitors the battery temperature in real time and automatically sprays aerosol to extinguish fires in case of fire, while a cover protects moving parts, providing multiple layers of safety. Fifth, the power supply component 20 integrates an inverter and multiple output interfaces to meet diverse power needs in industrial settings. In summary, this application has achieved groundbreaking improvements in mobility, steering reliability, operational comfort, and safety protection. The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application. HK 30134891 A 1 Claims 1. A mobile power supply vehicle, characterized in that it comprises: a chassis assembly; a power supply assembly disposed on the upper side of the chassis assembly; a drive assembly including a drive motor and a power wheel component, the drive motor being disposed on the chassis assembly and connected to the power wheel component to drive the power wheel component to rotate; a steering assembly including a handle component, a connecting component, and a steering wheel component, the handle component being rotatably connected to the chassis assembly, the steering wheel component being rotatably disposed on the chassis assembly, and the connecting component respectively connecting the handle component and the steering wheel component.2. The mobile power supply vehicle according to claim 1, characterized in that the steering wheel component includes a first bracket, a first wheel, a first connecting rod, a second bracket, and a second wheel; the first bracket is rotatably connected to the chassis assembly; one end of the first bracket is connected to the first wheel; the other end of the first bracket is connected to one end of the first connecting rod; the second bracket is rotatably connected to the chassis assembly; one end of the second bracket is connected to the second wheel; the other end of the second bracket is connected to the other end of the first connecting rod; the first wheel and the second wheel are respectively disposed on both sides of the chassis assembly; and the first connecting rod is connected to the connecting component. 3. The mobile power supply vehicle according to claim 2, characterized in that the first bracket is an L-shaped bracket, the first bracket having a first right-angle portion, the first right-angle portion being rotatably connected to the chassis assembly; and / or, the second bracket is an L-shaped bracket, the second bracket having a second right-angle portion, the second right-angle portion being rotatably connected to the chassis assembly. 4. The mobile power supply vehicle according to claim 2, characterized in that the connecting component includes an eccentric wheel and a second connecting rod, the eccentric wheel is provided with a non-coaxial first rotating part and a second rotating part, the first rotating part is coaxially connected to the handle component, the first rotating part rotates synchronously with the handle component to drive the eccentric wheel to rotate, the second rotating part is connected to one end of the second connecting rod, and the other end of the second connecting rod is connected to the first bracket or the second bracket. 5. The mobile power supply vehicle according to claim 4, characterized in that the chassis assembly is provided with a mounting bracket; the handle component includes an operating disc, a third connecting rod, and a pivot member, the pivot member is rotatably connected to the mounting bracket, one end of the third connecting rod is connected to the upper part of the pivot member, the other end of the third connecting rod is connected to the operating disc, and the lower part of the pivot member is connected to the first rotating part of the eccentric wheel; the operating disc is electrically connected to the drive motor, the drive motor is configured to drive the power wheel to rotate when receiving a motion command from the operating disc, and to run a self-locking program to lock the power wheel when not receiving a motion command from the operating disc. 6. The mobile power supply vehicle according to claim 5, wherein the handle component includes a first rotating shaft, the third link is connected to the pivot member via the first rotating shaft, the rotation axis of the first rotating shaft is perpendicular to the rotation axis of the pivot member, and the rotation axis of the pivot member is perpendicular to the plane of the chassis assembly. 7. The mobile power supply vehicle according to claim 6, wherein the steering assembly further includes an elastic reset member, the elastic reset member is connected to both the chassis assembly and the third link, and the elastic reset member is configured to drive the third link to reset.8. The mobile power supply vehicle according to claim 6, characterized in that the mobile power supply vehicle includes a first cover plate and a second cover plate, both the first cover plate and the second cover plate are connected to the chassis assembly, the first cover plate covers a portion of the connecting component and the pivot component, and the second cover plate covers a portion of the drive motor. 9. The mobile power supply vehicle according to any one of claims 1-8, characterized in that the power assembly includes a housing and a battery device, the housing is disposed on the upper side of the chassis assembly, the interior of the housing forms a battery compartment, and the housing has an opening communicating with the battery compartment; the battery device is disposed within the battery compartment, the battery device includes a battery body, an inverter (HK 30134891 A 3), and a power connector, the inverter is connected to the battery body, and the power connector is exposed in the opening. 10. The mobile power supply vehicle according to claim 9, characterized in that the battery device includes a fire suppression component, the fire suppression component is disposed on the battery body, the fire suppression component includes a temperature sensor and a fire extinguisher, the temperature sensor is electrically connected to the fire extinguisher, the temperature sensor is disposed on the battery body to detect the temperature of the battery body, and the fire extinguisher is configured to spray fire extinguishing aerosol onto the battery body when activated. HK 30134891 A 1 Specification Drawings Figure 1 HK 30134891 A 2 Figure 2 HK 30134891 A 3 Figure 3 HK 30134891 A 4 Figure 4 Figure 5 HK 30134891 A.