A height adjustment device for an obstacle-crossing electric rescue vehicle and an obstacle-crossing electric rescue vehicle

Abstract

The present invention discloses a height adjustment device for an electric rescue vehicle for overcoming obstacles. The steering motor drives the mechanical arm to rotate, thereby driving the wheel to turn and adjusting the direction of the vehicle. The rotating motor drives the relative rotation of the two mechanical arms, and can cooperate with the steering motor to extend the mechanical arms and wheels out of the vehicle body, so that the vehicle can walk over obstacles and increase the height of the frame relative to the wheels. The wheel hub motor drives the wheel to rotate, so that the wheel can move forward by itself, effectively improving the moving speed and rescue efficiency of the rescue vehicle. The present invention also discloses an electric rescue vehicle for overcoming obstacles. By installing the height adjustment device, the rescue efficiency of the rescue vehicle is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rescue equipment, and more particularly to a height adjustment device for an obstacle-crossing electric rescue vehicle and the obstacle-crossing electric rescue vehicle. Background Art

[0002] When major disasters such as earthquakes and forest fires occur, rescue work is extremely important and complicated. Due to many factors such as the complex terrain of the disaster site, ordinary rescue vehicles cannot enter the rescue site, which greatly reduces the speed at which trapped people are rescued, delays the best rescue opportunity, and seriously threatens their lives.

[0003] At present, the existing rescue vehicles on the market are difficult to enter the complex terrain areas to carry out rescue work, resulting in slow progress of rescue work in many areas. Therefore, it is urgent and necessary to propose a new type of obstacle-crossing rescue vehicle that can adapt to complex terrain. Summary of the invention

[0004] The purpose of the present invention is to design and develop a height adjustment device for an obstacle-crossing electric rescue vehicle, which realizes the lifting of the vehicle height by connecting two mechanical arms through a motor, and realizes the steering of the vehicle by connecting the mechanical arms and the frame through the motor. The combination of the motor and multiple suspensions realizes the rotation and shock absorption of the wheels, eliminates the power transmission system, and effectively improves the vehicle's passability.

[0005] The present invention also designs and develops an obstacle-crossing electric rescue vehicle, which, through the combination of multiple motors and mechanical arms, can extend the mechanical arms and wheels out of the vehicle body. By adjusting the electric motor, the rescue vehicle can walk, turn and increase height to adapt to complex terrain.

[0006] The technical solution provided by the present invention is:

[0007] A height adjustment device for an obstacle-crossing electric rescue vehicle, comprising:

[0008] A first mechanical arm comprising a first portion, a second portion and a third portion connected in sequence;

[0009] Wherein, the first part and the second part are connected at 110° to 135°, the second part and the third part are connected at 120° to 140°, and the third part is a hollow structure, and the first part is vertically connected to the axle;

[0010] a rotating motor disposed in the third portion;

[0011] a second robotic arm comprising a fourth portion and a fifth portion connected thereto;

[0012] The fourth part and the fifth part are connected at an angle of 120° to 140°, the fourth part is a groove structure, the third part can be accommodated in the fourth part, the fifth part is connected in parallel with the frame, one end of the fourth part is connected to the third part through the rotating motor, and under the drive of the rotating motor, the third part and the fourth part can rotate relative to each other by no more than 90°;

[0013] A steering motor is arranged between the fifth part and the frame, and under the drive of the steering motor, the fifth part rotates to the inside or outside of the vehicle body relative to the frame by no more than 90 degrees.

[0014] Preferably, it also includes:

[0015] a spline shaft base disposed between the first portion and the axle;

[0016] A plurality of magnetorheological dampers, one end of which is detachably disposed at intervals on the outside of the spline shaft base;

[0017] a suspension bracket having an annular groove;

[0018] A coil spring, which is arranged between the spline shaft base and the suspension bracket, and the coil spring is loosely sleeved on the outside of the magnetorheological damper;

[0019] Wherein, the other ends of the plurality of magnetorheological dampers are connected to the annular groove, and the spline shaft base is arranged in the annular groove.

[0020] Preferably, it also includes:

[0021] A steering motor base is detachably arranged on the upper part of the vehicle frame, and the steering motor base has a first accommodating cavity;

[0022] A first transmission gear connected to an output shaft of the steering motor;

[0023] A first spline sleeve meshing with the first transmission gear for transmission;

[0024] A first spline shaft, one end of which is fixedly connected to the first spline sleeve, and the other end of which passes through the frame and is connected to one end of the fifth part;

[0025] Wherein, the steering motor is fixed in the first accommodating cavity, and the first transmission gear and the first spline sleeve are both arranged in the first accommodating cavity.

[0026] Preferably, it also includes:

[0027] A rotating motor base is disposed in the third part, and the rotating motor base has a second accommodating cavity;

[0028] a second transmission gear connected to the output shaft of the rotating motor;

[0029] A second spline sleeve meshing with the second transmission gear for transmission;

[0030] A second spline shaft, which is fixedly connected to the second spline sleeve, and both ends of the second spline shaft pass through the rotating motor base and the detachable connection between the third part and the fourth part;

[0031] Wherein, the rotating motor is fixed in the second accommodating cavity, and the second transmission gear and the second spline sleeve are both arranged in the second accommodating cavity.

[0032] An obstacle-crossing electric rescue vehicle, comprising:

[0033] body; and

[0034] A vehicle frame, which includes a front-end mobile platform, a load-bearing platform and a rear-end mobile platform;

[0035] The front-end mobile platform, the carrying platform and the rear-end mobile platform are connected in sequence, the front-end mobile platform is 120° to 140° with the carrying platform, the rear-end mobile platform is 120° to 140° with the carrying platform, and the front-end mobile platform and the rear-end mobile platform are symmetrically arranged;

[0036] Two front-end height adjustment devices are symmetrically arranged at the lower part of the front-end moving platform;

[0037] Two rear-end height adjustment devices are symmetrically arranged at the lower part of the rear-end moving platform;

[0038] A plurality of axles, one end of which is connected to the two front-end height adjustment devices and the two rear-end height adjustment devices in a one-to-one correspondence;

[0039] A plurality of wheel hub motors, each having a through hole in the middle;

[0040] A plurality of wheels, which are arranged one by one on the outer sides of the plurality of wheel hub motors;

[0041] The other ends of the multiple axles pass through the through holes respectively and are rotatably connected to the multiple wheels vertically.

[0042] Preferably, the hub motor is an outer rotor type motor.

[0043] Preferably, it also includes:

[0044] The drum brake is arranged on the outer side of the outer rotor of the wheel hub motor and is used for braking the vehicle.

[0045] Preferably, the hub motor is arranged on the inner side of the spoke of the wheel.

[0046] Preferably, the two front-end height adjustment devices and the two rear-end height adjustment devices are connected to the vehicle frame via a steering motor.

[0047] Preferably, the two front-end height adjustment devices and the two rear-end height adjustment devices are connected to the axle via a first mechanical arm.

[0048] The beneficial effects of the present invention are:

[0049] (1) The height adjustment device designed and developed by the present invention for an electric rescue vehicle for overcoming obstacles can achieve the adjustment of the direction of the vehicle by driving the mechanical arm to rotate through the steering motor, thereby driving the wheel to steer. The relative rotation of the two mechanical arms is driven by the rotating motor, and can cooperate with the steering motor to extend the mechanical arm and the wheel out of the vehicle body, so that the vehicle can move over obstacles and achieve the height increase of the frame relative to the wheel. The rotation of the wheel is driven by the wheel hub motor to achieve the self-propelled forward movement of the wheel, which effectively improves the moving speed and rescue efficiency of the rescue vehicle.

[0050] (2) The obstacle-crossing electric rescue vehicle designed and developed by the present invention adopts the wheel hub motor drive technology, which greatly reduces the curb weight of the vehicle and increases the vehicle's utilization space, so that the vehicle has higher space utilization, better transmission efficiency and better handling characteristics, and the four independently driven wheels can also adaptively adjust their height relative to the vehicle body according to the terrain to ensure that the vehicle body is always in a horizontal state, meeting the requirements of the driver and passengers for driving comfort;

[0051] (3) The obstacle-crossing electric rescue vehicle designed and developed by the present invention is no different from an ordinary vehicle when traveling on a good and flat road, without any additional complex structure. When traveling on an obstacle or muddy road, the two mechanical arms are driven by a rotating motor to rotate relative to each other, thereby raising the height of the vehicle and significantly improving the vehicle's passability. In addition, by coordinating and controlling the four rotating motors, the vehicle can realize the function of walking forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 It is a schematic diagram of the structure of the electric obstacle-crossing rescue vehicle of the present invention without adjusting the height.

[0053] Figure 2 It is a schematic diagram of the structure of adjusting the height of the electric obstacle-crossing rescue vehicle of the present invention.

[0054] Figure 3 This is a schematic diagram of the main structure of the obstacle-crossing electric rescue vehicle of the present invention without adjusting the height.

[0055] Figure 4It is a structural schematic diagram of the height adjustment device for an obstacle-crossing electric rescue vehicle according to the present invention.

[0056] Figure 5 It is a schematic diagram of the structure of the mechanical arm described in the present invention.

[0057] Figure 6 It is a schematic diagram of the installation cross-sectional structure of the steering device of the present invention.

[0058] Figure 7 It is a schematic diagram of the installation cross-sectional structure of the rotating device of the present invention.

[0059] Figure 8 It is a schematic diagram of the structure of the suspension bracket of the present invention.

[0060] Fig. 9 It is a schematic diagram of the structure of the magnetorheological damper of the present invention.

[0061] Fig.10 It is a schematic diagram of the cross-sectional structure of the mobile device of the present invention.

[0062] Fig.11 It is a schematic diagram of the side structure of the wheel of the present invention. DETAILED DESCRIPTION

[0063] The present invention is further described in detail below so that those skilled in the art can implement it according to the description.

[0064] like Figure 1 , Figure 2 , Figure 3 As shown, the electric rescue vehicle provided by the present invention comprises: a height adjustment device (not shown in the figure), a vehicle body 140 and a frame 150, wherein the frame 150 is connected with the vehicle body 140 to form a vehicle compartment, such as Figure 4 As shown, the frame 150 includes a front-end mobile platform 151, a load-bearing platform 152 and a rear-end mobile platform 153; the front-end mobile platform 151, the load-bearing platform 152 and the rear-end mobile platform 153 are connected in sequence, the front-end mobile platform 151 is 120° to 140° with the load-bearing platform 152, the rear-end mobile platform 153 is 120° to 140° with the load-bearing platform 152, and the front-end mobile platform 151 and the rear-end mobile platform 153 are symmetrically arranged, and the height adjustment device is installed at the lower part of the frame 150, so that the rescue vehicle has steering function and moving function while realizing the adjustment of the vehicle height.

[0065] Among them, Figure 4As shown, the height adjustment device for an obstacle-crossing electric rescue vehicle provided by the present invention comprises: four first mechanical arms 110, four integrated drive wheels 120, four second mechanical arms 130, four moving devices 160 and four steering devices 170, the four integrated drive wheels 120 are respectively installed and arranged at left-right symmetrical positions of the front mobile platform 151 and the rear mobile platform 153, the four moving devices 160 for driving the wheels 120 to move are respectively integrated in the four wheels 120 one by one, and directly drive the wheels 120 to rotate.

[0066] like Figure 5 As shown, the first mechanical arm 110 includes: a first part 111, a second part 112 and a third part 113, the first part 111, the second part 112 and the third part 113 are connected in sequence, the first part 111 and the second part 112 are connected at 110° to 135°, the second part 112 and the third part 113 are connected at 120° to 140°, and the third part 113 is a hollow structure, the first part 111 is vertically connected to the wheel 120 through a third spline sleeve 114; the second mechanical arm 130 includes: a fourth Part 131 and the fifth part 132, wherein the fourth part 131 and the fifth part 132 are connected at 120° to 140°, the fourth part 131 is a groove structure, the third part 113 can be accommodated in the fourth part 131, the fifth part 132 is connected in parallel with the frame 150, one end of the fourth part 131 is connected to the third part 113 through a rotating device 180, and under the drive of the rotating device 180, the third part 113 and the fourth part 131 can rotate relative to each other by no more than 90°.

[0067] Among them, Figure 4 , Figure 6 As shown, the steering device 170 of the present invention includes: a first spline shaft 171, a first transmission gear 172, a first spline sleeve 173, a first gasket 174, a steering motor 175 and a steering motor base 176, wherein the steering motor base 176 is detachably arranged on the upper part of the frame 150, and the steering motor base 176 has a first accommodating cavity; the steering motor 175 is fixed in the first accommodating cavity; the first transmission gear 172 is connected to the output shaft of the steering motor 175; the first spline sleeve 173 is meshed with the first transmission gear 172 for transmission; wherein the first transmission gear 172 and the first spline sleeve 173 are both arranged in the first accommodating cavity; the first spline shaft 171, one end of which is fixedly connected to the first spline sleeve 173, and the other end passes through the frame 150 and is connected to one end of the fifth part 132, and a first gasket 174 is arranged between the frame 150 and the fifth part 132.

[0068] When the driver controls the steering of the vehicle, the steering motor 175 receives the signal from the active controller ECU and starts to rotate, and transmits it to the first spline sleeve 173 through the first transmission gear 172. The first spline sleeve 173 drives the first spline shaft 171 meshing with its spline, and the first spline shaft 171 drives the second mechanical arm 130 fixedly connected to it to rotate, and the second mechanical arm 130 drives the first mechanical arm 110 connected to it to rotate, and the first mechanical arm 110 drives the wheel 120 to rotate. Driven by the steering motor 175, the wheel 120 can complete an extreme rotation of 90°, that is, the second mechanical arm 130 can complete a maximum rotation of 90° around the first spline sleeve 173 toward the inside or outside of the vehicle body.

[0069] like Figure 5 , Figure 7 As shown, the rotating device 180 includes: a rotating motor base 181, a rotating motor 182, a second transmission gear 183, a second spline sleeve 184, a second spline shaft 185 and a second gasket 186, wherein the rotating motor base 181 is arranged in the third part 113, and the rotating motor base 181 has a second accommodating cavity; the rotating motor 182 is arranged in the second accommodating cavity; the second transmission gear 183 is connected to the output shaft of the rotating motor 182; the second spline sleeve 184 is meshed with the second transmission gear 183 for transmission; wherein the second transmission gear 183 and the second spline sleeve 184 are both arranged in the second accommodating cavity; the second spline shaft 185 is fixedly connected to the second spline sleeve 184, and both ends of the second spline shaft 185 pass through the rotating motor base 181 and the third part 113 and the detachable connection with the fourth part 131, and a second gasket 186 is arranged between the third part 113 and the fourth part 131.

[0070] When the driver adjusts the height of the vehicle, the rotating motor 182 receives the signal from the active controller ECU and starts to rotate, and transmits it to the second spline sleeve 184 through the second transmission gear 183. The second spline sleeve 184 drives the second spline shaft 185 that is spline-engaged with it. The second spline shaft 185 is fixedly connected to the second mechanical arm 130 by bolts, thereby realizing the relative rotation of the first mechanical arm 110 and the second mechanical arm 130. Driven by the rotating motor 182, the first mechanical arm 110 can be rotated to a maximum of 90° relative to the second mechanical arm 130.

[0071] like Figure 8 , Fig.10As shown, a shock absorbing device is arranged between the wheel 120 and the first mechanical arm 110, including: a third spline shaft 115, a spline shaft base 116, four coil springs 117, four magnetorheological dampers 118, a suspension bracket 119, a bearing 123 and an axle 124, wherein one end of the third spline shaft 115 is spline-connected with the third spline sleeve 114, and the other end is fixed to the spline shaft base 116; one end of the four magnetorheological dampers 118 is detachably arranged at intervals on the outside of the spline shaft base 116, and the four magnetorheological dampers 118 are in a cross shape; the suspension bracket 119 is provided with a bearing 123 and axle 124. A suspension bracket 119 having an annular groove; the other ends of the four magnetorheological dampers 118 are connected to the annular groove, and the spline shaft base 116 is arranged in the annular groove; four coil springs 117 are arranged between the spline shaft base 116 and the suspension bracket 119, and the four coil springs 117 are one-to-one empty sleeves on the outside of the four magnetorheological dampers 118; an axle 124, one end of which is connected to the suspension bracket 119, and the other end is arranged on the wheel 120 through a bearing 123, and the wheel 120 can rotate freely relative to the axle 124.

[0072] like Fig. 9 As shown, the magnetorheological damper 118 can be controlled by an electronic control unit ECU, and the damping coefficient of the suspension is changed by the viscosity of the magnetorheological fluid 206; a throttle hole 203 and a coil 204 are arranged on the piston in the magnetorheological damper 118, and the strength of the magnetic field generated by the coil 204 is changed by adjusting the current in the coil 204, thereby affecting the viscosity of the magnetorheological fluid 206, and adjusting the damping coefficient of the suspension; wherein, one end of the magnetorheological damper piston rod 201 is fixedly connected to the piston in the magnetorheological damper 118, and the other end is a spline shaft, which passes through the dense layer and the guide member 205, and is connected to the spline 20 2 is fixedly connected with the spline shaft base 116; in addition, the other end of the magnetorheological damper 118 is fixedly connected with the suspension bracket 119 by bolts; when the wheel 120 is impacted by the road surface, the wheel 120 first transmits the vibration received to the suspension bracket 119, and then the magnetorheological damper 118 buffers and attenuates the vibration, thereby ensuring the smoothness of the vehicle during driving. Therefore, due to the buffering effect of the coil spring 117 in the magnetorheological damper 118 and the shock absorbing effect of the magnetorheological damper 118, when the wheel 120 is impacted by the road surface, the vibration can be effectively suppressed to improve the driving comfort of the vehicle.

[0073] like Fig.10 , Fig.11As shown, the integrated drive wheel 120 includes: a tire 121, a rim 122, an axle 124, a spoke 125, a permanent magnet 161, an outer rotor 162 of a hub motor, a stator 163 of a hub motor, a motor winding 164, a motor controller 165, a drum brake 190 and a rotating shoe 191. The four sets of integrated wheels 120 are independent of each other. The wheel 120 is sequentially integrated with a drum brake 190, a suspension bracket 119, a magnetorheological damper 118, and a spline shaft base 116 from the inside of the spoke 124 to the inside; wherein, the hub motor is integrated The wheel hub motor that drives the vehicle is an outer rotor type, and is formed inside the drum brake 190. The wheel hub motor stator 163 is fixedly connected to the axle 124 and the motor controller 165. The motor winding 164 is arranged on the outside of the wheel hub motor stator 163, and the permanent magnet 161 is arranged on the outside of the motor winding 164. The wheel hub motor outer rotor 162 is connected to the spoke 125 by bolts. Each wheel 120 is driven independently of each other. When the wheel hub motor rotates, the power is directly output to the wheel 120 to drive the wheel 120 to rotate, which effectively improves the energy utilization rate. A drum brake 190 is arranged on the outside of the outer rotor 162 of the hub motor, and a rotating shoe 191 is arranged inside the drum brake 190, which is responsible for braking the vehicle; the suspension bracket 119 is fixedly connected to the axle 124 by bolts, and the other end is connected to the spline shaft base 116 through a magnetorheological damper 118, wherein the magnetorheological damper 118 is cross-shaped, and the magnetorheological damper piston rod 201 inside it is fixedly connected to the spline shaft base 116 through a spline 202, and the spline shaft 115 at one end of the spline shaft base 116 matches the spline groove at one end of the first mechanical arm 110 to fix the spline shaft 115 and the first mechanical arm 110.

[0074] The height adjustment device designed and developed by the present invention is used for an electric rescue vehicle for overcoming obstacles. The device drives the mechanical arm to rotate through a steering motor, thereby driving the wheels to steer and realizing the adjustment of the vehicle direction. The device drives the two mechanical arms to rotate relative to each other through a rotating motor, and can cooperate with the steering motor to extend the mechanical arms and wheels out of the vehicle body, so that the vehicle can move over obstacles and realize the height increase of the frame relative to the wheels. The device drives the wheels to rotate through the hub motor to realize the self-propelled advancement of the wheels, effectively improving the moving speed and rescue efficiency of the rescue vehicle.

[0075] The obstacle-crossing electric rescue vehicle designed and developed by the present invention adopts the wheel hub motor drive technology, which greatly reduces the curb weight of the vehicle and increases the vehicle's utilization space, so that the vehicle has higher space utilization, better transmission efficiency and better handling characteristics, and the four independently driven wheels can also adaptively adjust their height relative to the vehicle body according to the terrain, ensuring that the vehicle body is always in a horizontal state, meeting the requirements of the driver and passengers for driving comfort.

[0076] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes. They can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the embodiments shown and described herein.

Claims

1. A height adjustment device for an electric rescue vehicle, characterized in that: include: A first mechanical arm comprising a first portion, a second portion and a third portion connected in sequence; Wherein, the first part and the second part are connected at 110° to 135°, the second part and the third part are connected at 120° to 140°, and the third part is a hollow structure, and the first part is vertically connected to the axle; a rotating motor disposed in the third portion; a second robotic arm comprising a fourth portion and a fifth portion connected thereto; The fourth part and the fifth part are connected at an angle of 120° to 140°, the fourth part is a groove structure, the third part can be accommodated in the fourth part, the fifth part is connected in parallel with the frame, one end of the fourth part is connected to the third part through the rotating motor, and under the drive of the rotating motor, the third part and the fourth part can rotate relative to each other by no more than 90°; A steering motor is arranged between the fifth part and the frame, and driven by the steering motor, the fifth part rotates to the inside or outside of the vehicle body relative to the frame by no more than 90°; Wherein, the first part is vertically connected to the wheel through the third spline sleeve.

2. The height adjustment device for an electric rescue vehicle for overcoming obstacles according to claim 1, characterized in that: Also includes: A steering motor base is detachably arranged on the upper part of the vehicle frame, and the steering motor base has a first accommodating cavity; A first transmission gear connected to an output shaft of the steering motor; A first spline sleeve meshing with the first transmission gear for transmission; A first spline shaft, one end of which is fixedly connected to the first spline sleeve, and the other end of which passes through the frame and is connected to one end of the fifth part; Wherein, the steering motor is fixed in the first accommodating cavity, and the first transmission gear and the first spline sleeve are both arranged in the first accommodating cavity.

3. The height adjustment device for an electric rescue vehicle for overcoming obstacles as claimed in claim 2, characterized in that: Also includes: A rotating motor base is disposed in the third part, and the rotating motor base has a second accommodating cavity; a second transmission gear connected to the output shaft of the rotating motor; A second spline sleeve meshing with the second transmission gear for transmission; A second spline shaft, which is fixedly connected to the second spline sleeve, and both ends of the second spline shaft pass through the rotating motor base and the detachable connection between the third part and the fourth part; Wherein, the rotating motor is fixed in the second accommodating cavity, and the second transmission gear and the second spline sleeve are both arranged in the second accommodating cavity.

4. An electric obstacle-crossing rescue vehicle, using the height adjustment device for an electric obstacle-crossing rescue vehicle according to any one of claims 1 to 3, characterized in that: include: Car body; as well as A vehicle frame, which includes a front-end mobile platform, a load-bearing platform and a rear-end mobile platform; The front-end mobile platform, the carrying platform and the rear-end mobile platform are connected in sequence, the front-end mobile platform is 120° to 140° with the carrying platform, the rear-end mobile platform is 120° to 140° with the carrying platform, and the front-end mobile platform and the rear-end mobile platform are symmetrically arranged; Two front-end height adjustment devices are symmetrically arranged at the lower part of the front-end moving platform; Two rear-end height adjustment devices are symmetrically arranged at the lower part of the rear-end moving platform; A plurality of axles, one end of which is connected to the two front-end height adjustment devices and the two rear-end height adjustment devices in a one-to-one correspondence; A plurality of wheel hub motors, each having a through hole in the middle; A plurality of wheels, which are arranged one by one on the outer sides of the plurality of wheel hub motors; The other ends of the multiple axles pass through the through holes respectively and are rotatably connected to the multiple wheels vertically.

5. The electric obstacle-crossing rescue vehicle according to claim 4, characterized in that: The hub motor is an outer rotor type motor.

6. The electric obstacle-crossing rescue vehicle according to claim 5, characterized in that: Also includes: The drum brake is arranged on the outer side of the outer rotor of the wheel hub motor and is used for braking the vehicle.

7. The electric obstacle-crossing rescue vehicle according to claim 6, characterized in that: The hub motor is arranged on the inner side of the spoke of the wheel.

8. The electric obstacle-crossing rescue vehicle according to claim 7, characterized in that: The two front-end height adjustment devices and the two rear-end height adjustment devices are connected to the vehicle frame through a steering motor.

9. The electric obstacle-crossing rescue vehicle according to claim 8, characterized in that: The two front-end height adjustment devices and the two rear-end height adjustment devices are connected to the axle through the first mechanical arm.

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