A fully electric transport vehicle with chassis protection structure

Abstract

The present invention discloses a fully electric transport vehicle with a chassis protection structure, which relates to the technical field of transport vehicle chassis protection, including a chassis, an upper guard plate, an electronic control processor, a 3D camera and a laser rangefinder, wherein the top of the outer wall of the chassis is fixedly installed with an electronic control processor, the front of the outer wall of the chassis is fixedly installed with a 3D camera and a laser rangefinder, and the 3D camera and the laser rangefinder are connected to the electronic control processor via a data cable, and the bottom of the outer wall of the chassis is movably installed with an upper guard plate, and the bottom of the outer wall of the upper guard plate is connected and installed with a lower guard plate via an adaptive lifting component. The present invention realizes an adaptive lifting protection function according to different terrains and obstacles by installing an adaptive lifting component, solves the problem that the protection height of the chassis of the traditional transport vehicle cannot be adjusted, improves the protection flexibility and operation stability of the transport vehicle, and improves the handling efficiency and protection effect.

Description

Technical Field

[0001] The invention relates to the technical field of chassis protection of transport vehicles, in particular to a full-electric transport vehicle with a chassis protection structure. Background Art

[0002] All-electric transport trucks have been widely used in logistics, warehousing and other fields. Especially with the development of unmanned driving and intelligent technology, all-electric transport trucks have gradually become an important part of logistics automation. However, in daily use of this type of transport equipment, especially in an environment with uneven ground or many obstacles, the chassis structure is very susceptible to damage, affecting the operating stability and service life of the equipment.

[0003] Most of the all-electric transporters on the market currently use fixed chassis protection devices, which cannot automatically adjust according to real-time environmental changes, resulting in limited protection effects in complex terrain. In addition, due to the lack of intelligent shock absorption and height adjustment functions, the transporter is subject to greater impact when running on uneven ground, which can easily cause damage to internal parts. Therefore, designing a chassis protection structure that can adaptively adjust the height and has both real-time sensing and shock absorption functions has become a key requirement for improving the adaptability and safety of all-electric transporters.

[0004] 1. Patent document CN117774987B discloses a method for protecting the chassis of an all-terrain vehicle. The above patent realizes that a perception module is provided to obtain road surface information of a section of road that the all-terrain vehicle is about to pass through, a processing and integration module processes and integrates image information and data information, a road condition recognition and judgment module judges whether the road condition is flat or whether there are obstacles, a control module outputs different adjustment instructions based on the judgment result, and a feedback module is used to display road condition information and adjustment instructions, and save and upload them. However, the above patent cannot realize the adaptive lifting and lowering protection function according to different terrains and obstacles.

[0005] 2. Patent document CN116714403B discloses an AGV obstacle avoidance protection method with a self-retractable chassis. The above patent realizes actively lifting the chassis to retract the contact part and separate from the object when the AGV touches a person or equipment, thereby achieving the design purpose of ensuring the safety of personnel or equipment and avoiding secondary injuries. However, the above patent cannot realize the dynamic damping adjustment function of the protective plate.

[0006] 3. Patent document CN111775859B discloses a truck chassis protection plate with protective function. The above patent realizes the shielding plate, support seat, connecting seat and connecting block through the setting. The support seat can realize shielding and supporting of the reserved maintenance valve, ensuring that the reserved maintenance valve will not cause damage to the automobile parts at the reserved maintenance valve when it is squeezed and collided, thereby further playing a role in protecting the automobile parts. However, the above patent cannot realize the function of buffering the chassis from external impact and vibration.

[0007] 4. Patent document CN113002626B discloses an electric passenger vehicle with chassis anti-collision protection function. The above patent realizes the chassis anti-collision protection function, but the above patent cannot realize the dynamic local protection function of the chassis.

[0008] In summary, the above patent cannot realize the functions of adaptive lifting protection according to different terrains and obstacles, dynamic damping adjustment of the protective plate, external impact and vibration buffering of the chassis, and dynamic local protection of the chassis, resulting in the inability to perform adaptive adjustment according to terrain and obstacles, chassis damage by impact, instability of the transport vehicle, and reduced safety of use;

[0009] To this end, the present application proposes a fully electric transporter with a chassis protection structure that can realize adaptive lifting protection functions according to different terrains and obstacles, dynamic damping adjustment function of the protective plate, external impact and vibration buffering function of the chassis, and dynamic local protection function of the chassis. Summary of the invention

[0010] The purpose of the present invention is to provide an all-electric transporter with a chassis protection structure to solve the technical problems proposed in the above-mentioned background technology that the adaptive lifting protection function according to different terrains and obstacles, the dynamic damping adjustment function of the protective plate, the external impact and vibration buffering function of the chassis and the dynamic local protection function of the chassis cannot be realized, resulting in the inability to adaptively adjust according to the terrain and obstacles, the chassis is damaged by impact, the transporter is unstable and the safety of use is reduced.

[0011] To achieve the above object, the present invention provides the following technical solution: a fully electric transport vehicle with a chassis protection structure, comprising a chassis, an upper guard plate, an electronic control processor, a 3D camera and a laser rangefinder, wherein the electronic control processor is fixedly installed on the top of the outer wall of the chassis, the 3D camera and the laser rangefinder are fixedly installed on the front of the outer wall of the chassis, and the 3D camera and the laser rangefinder are connected to the electronic control processor through a data cable, the upper guard plate is movably installed on the bottom of the outer wall of the chassis, and the bottom of the outer wall of the upper guard plate is connected to the lower guard plate through an adaptive lifting component;

[0012] The adaptive lifting assembly comprises: a hydraulic cylinder, a connecting rod and a positioning pin shaft;

[0013] The bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate are both fixedly installed with a slide groove, and a limit slider is movably installed in the slide groove. The bottom of the outer wall of the limit slider is movably connected with a connecting rod through a hinge, and the connecting rod is movably connected through a positioning pin shaft. A hydraulic cylinder is fixedly installed at the bottom of the outer wall of the upper guard plate, and the hydraulic cylinder is connected to the electronic control processor through a data signal line. A hydraulic telescopic rod is fixedly installed at the output port at the bottom of the outer wall of the hydraulic cylinder, and the hydraulic telescopic rod is fixedly connected to the positioning pin shaft through a pin head. A fixed buckle is fixedly installed on the top of the outer wall of the upper guard plate, and the fixed buckle is movably installed in a quick-release slot opened at the bottom of the outer wall of the chassis.

[0014] Preferably, a dynamic damping adjustment component is fixedly connected to the side of the outer wall of the adaptive lifting component, and the dynamic damping adjustment component is used to automatically adjust the shock absorption performance according to the driving speed and road conditions of the transport vehicle;

[0015] The dynamic damping adjustment assembly includes: a damping valve and a support rod;

[0016] A support rod is fixedly installed on the side of the outer wall of the positioning pin shaft, a damping valve is fixedly installed on the bottom of the outer wall of the chassis, and the damping valve is connected to the electronic control processor through a data cable, and the top of the outer wall of the support rod is movably inserted into the hydraulic port at the bottom of the outer wall of the damping valve.

[0017] Preferably, a buffer shock-absorbing component is fixedly installed between the bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate, and the buffer shock-absorbing component is used to buffer and absorb the impact on the chassis of the transport vehicle;

[0018] The buffer shock absorption assembly includes: an energy absorbing spring, a shock absorbing seat and a multi-link;

[0019] Shock-absorbing seats are fixedly installed at the bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate, multiple links are movably installed between the shock-absorbing seats, rubber sleeves are movably installed on the outer walls of the multiple links, and energy-absorbing springs are surrounded by the outer walls of the multiple links between the shock-absorbing seats and the rubber sleeves.

[0020] Preferably, a battery is fixedly installed at the bottom of the inner wall of the chassis, and ventilation windows are fixedly installed at the bottom of the inner wall of the chassis and the top of the inner wall of the upper guard plate. When the upper guard plate is inserted into the bottom of the outer wall of the chassis and locked, the ventilation windows cooperate with each other, and an inverted cone air duct is fixedly installed at the bottom of the outer wall of the upper guard plate, and the fan blades on the surface of the inverted cone air duct face downward.

[0021] Preferably, a truck bed is fixedly mounted on the top of the outer wall of the chassis, a driving wheel set is fixedly mounted on the bottom of the outer wall of the chassis, and the driving wheel set is connected to a battery through a motor drive, and the battery is connected to an electronic control processor, a 3D camera and a laser rangefinder through a power cord.

[0022] Preferably, a nano protective coating is fixedly installed on the bottom of the outer wall of the lower guard plate, the bottom of the outer wall of the nano protective coating is coated with a hydrophobic coating, and the bottom of the outer wall of the hydrophobic coating is wrapped with a wear-resistant coating.

[0023] Preferably, a plurality of bubble bags are fixedly mounted on the top of the outer wall of the lower guard plate, and a plurality of stress sensors are fixedly mounted on the bottom of the inner wall of the lower guard plate. The stress sensors are connected to the electronic control processor through a thin film circuit. The stress sensors are protected by an insulating layer to prevent external factors from interfering with the signals.

[0024] Preferably, a micro-electric pump is fixedly installed on the bottom of the inner wall of the lower guard plate, a connecting pipe is fixedly installed on the side of the outer wall of the micro-electric pump, the connecting pipe is externally connected to the expansion foam material cylinder and the air compressor, a matrix pipe is fixedly installed on the top of the outer wall of the micro-electric pump, and the matrix pipe is connected to the bubble bag, a plurality of electric-controlled valves are fixedly installed in the matrix pipe, and the micro-electric pump and the electric-controlled valves are connected to the electric-controlled processor through signal lines.

[0025] Preferably, the electronic control processor is connected to the accelerometer and gyroscope installed at the bottom of the inner wall of the chassis through a data signal line. A fuzzy control system and a rule base are preset in the electronic control processor, and a lifting protection signal is generated by comparing the acceleration and the tilt parameter rules of the transport vehicle.

[0026] Preferably, the electronic control processor is also preset with a terrain classification algorithm based on machine learning, which uses a convolutional neural network to train the detected obstacle data, automatically identifies different terrains, generates corresponding lifting instructions, and uses a PID control algorithm to accurately adjust the lifting position and speed of the lower guard plate.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The present invention realizes the adaptive lifting protection function according to different terrains and obstacles by installing an adaptive lifting component, solves the problem that the protection height of the chassis of the traditional transport vehicle cannot be adjusted, improves the protection flexibility and operation stability of the transport vehicle, and improves the transportation efficiency and protection effect;

[0029] 2. The present invention realizes the dynamic damping adjustment function of the protective plate by installing a dynamic damping adjustment component, solves the problem that the protective damping of the traditional transport vehicle is not adjustable, makes the protection of the chassis of the transport vehicle more flexible, and the dynamic adjustment makes the protection of the chassis impact more stable;

[0030] 3. The present invention realizes the function of buffering the chassis from external impact and vibration by installing a buffering and shock absorbing component, solves the problem that the transport vehicle shakes or even tilts due to the impact energy when the transport vehicle is impacted, and improves the stability of the transport vehicle;

[0031] 4. The present invention realizes the dynamic local protection function of the chassis by installing stress sensors, micro-electric pumps and electronically controlled valves, improves the local protection capability of the transport vehicle, and prevents the chassis from being damaged due to local impact, thereby preventing damage to internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a front view of the present invention;

[0034] Figure 3 It is a schematic diagram of the structure of the adaptive lifting assembly of the present invention;

[0035] Figure 4 It is a schematic diagram of the structure of the dynamic damping adjustment component of the present invention;

[0036] Figure 5 It is a schematic diagram of the structure of the buffer shock absorbing component of the present invention;

[0037] Figure 6 It is a schematic diagram of the structure of the lower guard plate of the present invention;

[0038] Figure 7 It is a schematic diagram of the structure of the micro-electric pump and the electric-controlled valve of the present invention;

[0039] Figure 8 It is a schematic diagram of signal processing by the electronic control processor of the present invention.

[0040] In the figure: 1. chassis; 2. truck bed; 3. upper guard plate; 4. electronic control processor; 5. driving wheel set; 6. 3D camera; 7. laser rangefinder; 8. battery; 9. quick release slot; 10. fixing buckle; 11. slide; 12. ventilation window; 13. inverted cone air duct; 14. hydraulic cylinder; 15. hydraulic telescopic rod; 16. positioning pin shaft; 17. lower guard plate; 18. connecting rod; 19. limit slider; 20. damping valve; 21. support rod; 22. stress sensor; 23. shock absorber seat; 24. multi-link; 25. energy absorbing spring; 26. rubber sleeve; 27. nano protective coating; 28. hydrophobic coating; 29. ​​wear-resistant coating; 30. bubble capsule; 31. micro electric pump; 32. connecting pipe; 33. matrix pipe; 34. electric control valve. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , an embodiment provided by the present invention: a fully electric transport vehicle with a chassis protection structure, comprising a chassis 1, an upper guard plate 3, an electronic control processor 4, a 3D camera 6 and a laser rangefinder 7, wherein the electronic control processor 4 is fixedly installed on the top of the outer wall of the chassis 1, the 3D camera 6 and the laser rangefinder 7 are fixedly installed on the front of the outer wall of the chassis 1, and the 3D camera 6 and the laser rangefinder 7 are connected to the electronic control processor 4 through a data cable, the upper guard plate 3 is movably installed at the bottom of the outer wall of the chassis 1, and the lower guard plate 17 is connected to the bottom of the outer wall of the upper guard plate 3 through an adaptive lifting component;

[0045] The adaptive lifting assembly includes: a hydraulic cylinder 14, a connecting rod 18 and a positioning pin shaft 16;

[0046] A slide groove 11 is fixedly installed at the bottom of the outer wall of the upper guard plate 3 and the top of the outer wall of the lower guard plate 17. A limit slider 19 is movably mounted in the slide groove 11. The bottom of the outer wall of the limit slider 19 is movably connected to a connecting rod 18 through a hinge. The connecting rod 18 is movably connected through a positioning pin shaft 16. A hydraulic cylinder 14 is fixedly installed at the bottom of the outer wall of the upper guard plate 3, and the hydraulic cylinder 14 is connected to the electronic control processor 4 through a data signal line. A hydraulic telescopic rod 15 is fixedly installed at the output port at the bottom of the outer wall of the hydraulic cylinder 14, and the hydraulic telescopic rod 15 is fixedly connected to the positioning pin shaft 16 through a pin head. A fixed buckle 10 is fixedly installed at the top of the outer wall of the upper guard plate 3, and the fixed buckle 10 is movably installed in a quick-release card slot 9 opened at the bottom of the outer wall of the chassis 1;

[0047] The electronic control processor 4 is connected to the accelerometer and gyroscope installed at the bottom of the inner wall of the chassis 1 through a data signal line. The electronic control processor 4 is preset with a fuzzy control system and a rule base, and generates a lifting protection signal by comparing the acceleration and the tilt parameter rules of the transport vehicle;

[0048] The electronic control processor 4 is also preset with a terrain classification algorithm based on machine learning, which uses a convolutional neural network to train the detected obstacle data, automatically identifies different terrains, generates corresponding lifting instructions, and uses a PID control algorithm to accurately adjust the lifting position and speed of the lower guard plate 17;

[0049] Furthermore, the 3D camera 6 takes real-time images of road obstacles and terrain on the forward trajectory of the transporter, and the laser rangefinder 7 collects the distance of obstacles in real time through the principle of laser reflection. The 3D camera 6 and the laser rangefinder 7 transmit the collected data to the electronic control processor 4 in real time. The electronic control processor 4 recognizes the terrain conditions in real time through the terrain classification algorithm and the convolutional neural network model. The accelerometer and gyroscope transmit the form speed and tilt degree information of the transporter to the electronic control processor 4 for comparison with the rule library. The electronic control processor 4 generates corresponding protective lifting and lowering according to the terrain and obstacle conditions. Signal: When the obstacle height is greater than 30cm or the vehicle's uphill slope is greater than 30° or the vehicle speed is greater than 10km / h, the electronic control processor 4 sends a protective lifting signal to the hydraulic cylinder 14, and the hydraulic cylinder 14 drives the hydraulic telescopic rod 15 to retract upward, and the hydraulic telescopic rod 15 drives the positioning pin 16 to move upward. During the upward movement of the positioning pin 16, the limit slider 19 installed on the connecting rod 18 slides relatively away to both sides in the slide groove 11, and the connecting rods 18 cross-fold and drive the lower guard plate 17 to move upward. At this time, the lower guard plate 17 is close to the upper guard plate 3 and the chassis 1 to prevent obstacles from hitting it. The chassis 1 reduces the resistance of the transporter at the same time, ensuring the stable operation of the transporter; when the obstacle height is ≤30cm or the vehicle uphill slope is ≤30° or the vehicle speed is ≤10km / h, the electronic control processor 4 sends a protective descending signal to the hydraulic cylinder 14, and the hydraulic cylinder 14 drives the hydraulic telescopic rod 15 to extend downward, and the hydraulic telescopic rod 15 drives the positioning pin 16 to move downward. During the downward movement of the positioning pin 16, the limit slider 19 installed on the connecting rod 18 slides relatively close to both sides in the slide groove 11, and the connecting rods 18 cross-fold with each other to drive the lower guard plate 17 to move downward. At this time, the lower guard plate 17 moves away from the upper guard plate 3 and the chassis 1 to a fixed position and stops, ensuring that the transport vehicle can effectively resist obstacles from scratching the chassis 1 when moving slowly, and preventing obstacles from damaging the battery 8 or circuit in the chassis 1; when it is necessary to protect the chassis 1 of the transport vehicle, the fixed buckle 10 on the upper guard plate 3 is inserted into the quick-release card slot 9; when it is not necessary to protect the chassis 1, the upper guard plate 3 is directly pulled out, so that the fixed buckle 10 is withdrawn from the quick-release card slot 9, thereby reducing the load of the transport vehicle, realizing the rapid installation and disassembly function of the protection, and improving the operation efficiency of the transport vehicle.

[0050] See also Figure 3 , Figure 4 and Figure 5 , an embodiment provided by the present invention: an all-electric transport vehicle with a chassis protection structure, wherein a dynamic damping adjustment component is fixedly connected to the side of the outer wall of the adaptive lifting component, and the dynamic damping adjustment component is used to automatically adjust the shock absorption performance according to the travel speed and road conditions of the transport vehicle;

[0051] The dynamic damping adjustment assembly includes: a damping valve 20 and a support rod 21;

[0052] A support rod 21 is fixedly installed on the side of the outer wall of the positioning pin shaft 16, a damping valve 20 is fixedly installed on the bottom of the outer wall of the chassis 1, and the damping valve 20 is connected to the electronic control processor 4 through a data line, and the top of the outer wall of the support rod 21 is movably inserted into the hydraulic port at the bottom of the outer wall of the damping valve 20;

[0053] A buffer and shock-absorbing component is fixedly installed between the bottom of the outer wall of the upper guard plate 3 and the top of the outer wall of the lower guard plate 17, and the buffer and shock-absorbing component is used to buffer and absorb the impact on the chassis 1 of the transport vehicle;

[0054] The buffer shock absorbing assembly includes: an energy absorbing spring 25, a shock absorbing seat 23 and a multi-link 24;

[0055] The bottom of the outer wall of the upper guard plate 3 and the top of the outer wall of the lower guard plate 17 are both fixedly installed with a shock-absorbing seat 23, a multi-link 24 is movably installed between the shock-absorbing seats 23, a rubber sleeve 26 is movably installed on the outer wall of the multi-link 24, and an energy-absorbing spring 25 is surrounded by the outer wall of the multi-link 24 between the shock-absorbing seat 23 and the rubber sleeve 26;

[0056] Furthermore, when the truck is traveling on a bumpy road or the vehicle load is too large, the electronic control processor 4 sends a dynamic damping adjustment signal to the damping valve 20, and the damping valve 20 controls and adjusts the hydraulic pressure of the hydraulic port so that the support rod 21 can be extended and retracted to ensure that when the bottom of the truck is scratched against an obstacle or the road surface during driving, the lower guard plate 17 can adaptively rise to prevent the truck from being bumped due to hard impact, causing the materials in the bucket 2 to scatter or causing the truck to tilt and overturn; at the same time, when the lower guard plate 17 at the bottom of the truck is scratched or impacted by an obstacle, the energy-absorbing spring 25 surrounding the multi-link 24 between the shock-absorbing seat 23 and the rubber sleeve 26 is squeezed and deformed by the lower guard plate 17 and the rubber sleeve 26, and at the same time, the multi-link 24 can be slightly movable and inserted into the shock-absorbing seat 23, so that the lower guard plate 17 can effectively buffer and absorb the impact and vibration when it is scratched and impacted, so that the truck can travel stably without bumps and tilting, thereby improving the stability of the truck.

[0057] See also Figure 3 and Figure 6 , an embodiment provided by the present invention: a fully electric transport vehicle with a chassis protection structure, wherein a battery 8 is fixedly installed at the bottom of the inner wall of the chassis 1, and a ventilation window 12 is fixedly installed at the bottom of the inner wall of the chassis 1 and the top of the inner wall of the upper guard plate 3, and when the upper guard plate 3 is inserted into the bottom of the outer wall of the chassis 1 and locked, the ventilation windows 12 cooperate with each other, and an inverted cone-shaped air duct 13 is fixedly installed at the bottom of the outer wall of the upper guard plate 3, and the fan blades on the surface of the inverted cone-shaped air duct 13 face downward;

[0058] The bottom of the outer wall of the lower guard plate 17 is fixedly mounted with a nano protective coating 27, the bottom of the outer wall of the nano protective coating 27 is coated with a hydrophobic coating 28, and the bottom of the outer wall of the hydrophobic coating 28 is wrapped with a wear-resistant coating 29;

[0059] Furthermore, when the fixing buckle 10 on the upper guard plate 3 is not inserted into the quick-release slot 9 at the bottom of the chassis 1, the air vent 12 at the bottom of the inner wall of the chassis 1 plays a ventilation and heat dissipation function. When the fixing buckle 10 on the upper guard plate 3 is inserted into the quick-release slot 9 at the bottom of the chassis 1, the air vent 12 on the upper guard plate 3 and the air vent 12 at the bottom of the inner wall of the chassis 1 cooperate to ensure the heat dissipation of the battery 8. At the same time, the air of the moving truck will enter and flow out from the inverted cone duct 13 to form a natural heat dissipation guide duct to ensure good heat dissipation of the battery 8. In addition, the inverted cone design and surface of the inverted cone duct 13 The design of the fan blades facing obliquely downward can ensure that water vapor condenses into beads and drips down, preventing water vapor from entering the interior of the chassis 1 and causing circuit short circuit problems, thereby improving the safety of the battery 8; the wear-resistant coating 29 has the effect of impact resistance and wear resistance, preventing obstacles or rugged roads from scratching and impacting the chassis 1 and causing damage to the battery 8. The hydrophobic coating 28 has a hydrophobic effect, preventing dust and water vapor from entering the chassis 1. The nano-protective coating 27 has a self-cleaning effect, preventing impurities from adhering and acid-base chemical corrosion from causing permanent damage to the chassis 1, thereby improving the various protection effects of the chassis 1 and the battery 8 inside.

[0060] See also Figure 2 and Figure 7 , an embodiment provided by the present invention: a fully electric transport vehicle with a chassis protection structure, wherein a plurality of bubble bags 30 are fixedly installed on the top of the outer wall of the lower guard plate 17, and a plurality of stress sensors 22 are fixedly installed on the bottom of the inner wall of the lower guard plate 17, and the stress sensor 22 is connected to the electronic control processor 4 through a thin film circuit, and the stress sensor 22 is protected by an insulating layer to prevent external factors from interfering with the signal;

[0061] A micro-electric pump 31 is fixedly installed at the bottom of the inner wall of the lower guard plate 17, a connecting pipe 32 is fixedly installed on the side of the outer wall of the micro-electric pump 31, the connecting pipe 32 is externally connected to the expansion foam material cylinder and the air compressor, a matrix pipe 33 is fixedly installed on the top of the outer wall of the micro-electric pump 31, and the matrix pipe 33 is connected to the bubble bag 30, a plurality of electric control valves 34 are fixedly installed in the matrix pipe 33, and the micro-electric pump 31 and the electric control valve 34 are connected to the electric control processor 4 through signal lines;

[0062] Furthermore, when the lower guard plate 17 is scratched or hit, the stress sensor 22 on the inner wall of the lower guard plate 17 monitors the local impact force in real time and transmits it to the electronic control processor 4. The electronic control processor 4 sends a buffer protection response signal to the local impact, and transmits the signal to the micro-electric pump 31 and the electronic control valve 34. At this time, the micro-electric pump 31 is started, and the expansion foam material cylinder and the air compressor are externally connected through the connecting pipe 32. The micro-electric pump 31 pumps compressed air or expansion foam liquid into the matrix pipe 33, and the electronic control valve 34 in the corresponding area is opened, and the other electronic control valves 34 are closed to transport the compressed air or expansion foam liquid to the bubble bag 30 in the corresponding area, so that the bubble bag 30 expands rapidly. The expanded bubble bag 30 can effectively separate the lower guard plate 17 from the upper guard plate 3 during impact, preventing the impact from continuing to affect the chassis 1 and the components in the transport vehicle and the materials loaded in the truck bed 2, thereby realizing local buffer protection for the chassis 1 and improving the stability and service life of the transport vehicle.

[0063] See also Figure 1 , Figure 2 and Figure 8 , an embodiment of the present invention: a fully electric transport vehicle with a chassis protection structure, wherein a bucket 2 is fixedly mounted on the top of the outer wall of the chassis 1, a driving wheel set 5 is fixedly mounted on the bottom of the outer wall of the chassis 1, and the driving wheel set 5 is connected to a battery 8 through a motor drive, and the battery 8 is connected to an electronic control processor 4, a 3D camera 6 and a laser rangefinder 7 through a power line;

[0064] The electronic control processor 4 is connected to the accelerometer and gyroscope installed at the bottom of the inner wall of the chassis 1 through a data signal line. The electronic control processor 4 is preset with a fuzzy control system and a rule base, and generates a lifting protection signal by comparing the acceleration and the tilt parameter rules of the transport vehicle;

[0065] Furthermore, the laser rangefinder 7 detects the distance between the chassis and the ground in real time, and identifies changes in the ground height, providing precise measurement when the distance is short, which is suitable for situations with smaller obstacles or uneven ground. The accelerometer and gyroscope measure the vibration and inclination of the transport vehicle, which is convenient for real-time adjustment of the height and angle of the chassis protection device on a slope or uneven ground. The 3D camera 6 collects road obstacle conditions in real time. The data collected by the 3D camera 6, the laser rangefinder 7, the accelerometer and the gyroscope are transmitted to the electronic control processor 4 in real time. The electronic control processor 4 conducts a comprehensive analysis of the data through a weighted fusion algorithm, and analyzes the ground state (flatness, inclination, obstacle height, etc.) in real time according to the fused data, and divides it into several levels (such as safety, low risk, medium risk, high risk, etc.) based on the classification algorithm of machine learning, and generates lifting protection, buffering protection and damping adjustment signals in real time, so that the transport vehicle can run stably on the road, with less collision impact, and buffer the shaking caused by the impact.

[0066] Working principle: First, the 3D camera 6, laser rangefinder 7, accelerometer and gyroscope are used to collect the environmental road surface and obstacle conditions of the transport vehicle in real time, and the collected data is transmitted to the electronic control processor 4 for analysis and comparison. The electronic control processor 4 generates the corresponding adaptive adjustment control signal in real time;

[0067] Then, the electronic control processor 4 sends the adaptive adjustment control signal to the adaptive lifting component, the dynamic damping adjustment component and the buffer shock absorption component to perform corresponding parameter control adjustment;

[0068] Finally, the adaptive lifting component adjusts the lifting height of the lower guard plate 17 in real time, the dynamic damping adjustment component adjusts the buffer damping size parameters in real time, and the buffer shock absorption component effectively absorbs the impact energy and accompanies local protection, so that the transport vehicle runs smoothly and prevents damage to the chassis 1, battery 8 and internal components.

[0069] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fully electric transport vehicle with a chassis protection structure, comprising a chassis, an upper guard plate, an electronic control processor, a 3D camera and a laser rangefinder, characterized in that: A battery is fixedly installed at the bottom of the inner wall of the chassis, an electronic control processor is fixedly installed at the top of the outer wall of the chassis, a 3D camera and a laser rangefinder are fixedly installed at the front of the outer wall of the chassis, and the 3D camera and the laser rangefinder are connected to the electronic control processor via a data cable, an upper guard plate is movably installed at the bottom of the outer wall of the chassis, and a lower guard plate is connected to the bottom of the outer wall of the upper guard plate through an adaptive lifting component; The adaptive lifting assembly comprises: a hydraulic cylinder, a connecting rod and a positioning pin shaft; The bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate are both fixedly installed with a slide groove, and a limit slider is movably connected in the slide groove. The bottom of the outer wall of the limit slider is movably connected with a connecting rod through a hinge, and the connecting rod is movably connected through a positioning pin shaft. A hydraulic cylinder is fixedly installed at the bottom of the outer wall of the upper guard plate, and the hydraulic cylinder is connected to the electronic control processor through a data signal line. A hydraulic telescopic rod is fixedly installed at the output port at the bottom of the outer wall of the hydraulic cylinder, and the hydraulic telescopic rod is fixedly connected to the positioning pin shaft through a pin head. A fixed buckle is fixedly installed on the top of the outer wall of the upper guard plate, and the fixed buckle is movably installed in a quick-release card slot opened at the bottom of the outer wall of the chassis; A dynamic damping adjustment component is fixedly connected to the side of the outer wall of the adaptive lifting component; The dynamic damping adjustment assembly includes: a damping valve and a support rod; A support rod is fixedly installed on the side of the outer wall of the positioning pin shaft, a damping valve is fixedly installed on the bottom of the outer wall of the chassis, and the damping valve is connected to the electronic control processor through a data line, and the top of the outer wall of the support rod is movably inserted into the hydraulic port at the bottom of the outer wall of the damping valve; When the truck is traveling on a bumpy road or the vehicle is overloaded, the electronic control processor sends a dynamic damping adjustment signal to the damping valve. The damping valve controls and adjusts the hydraulic pressure of the hydraulic port so that the support rod can be extended and retracted, ensuring that when the bottom of the truck scrapes against an obstacle or the road during driving, the lower guard plate can adaptively rise to prevent the truck from being bumped due to hard impact.

2. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: A buffer and shock-absorbing component is fixedly installed between the bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate, and the buffer and shock-absorbing component is used to buffer and absorb the impact on the chassis of the transport vehicle; The buffer shock absorption assembly includes: an energy absorbing spring, a shock absorbing seat and a multi-link; Shock-absorbing seats are fixedly installed at the bottom of the outer wall of the upper guard plate and the top of the outer wall of the lower guard plate, multiple links are movably installed between the shock-absorbing seats, rubber sleeves are movably installed on the outer walls of the multiple links, and energy-absorbing springs are surrounded by the outer walls of the multiple links between the shock-absorbing seats and the rubber sleeves.

3. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: The bottom of the inner wall of the chassis and the top of the inner wall of the upper guard plate are both fixedly installed with ventilation windows, and when the upper guard plate is inserted into the bottom of the outer wall of the chassis and locked, the ventilation windows cooperate with each other, and an inverted cone air duct is fixedly installed at the bottom of the outer wall of the upper guard plate, and the fan blades on the surface of the inverted cone air duct face downward.

4. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: A truck bucket is fixedly installed on the top of the outer wall of the chassis, a driving wheel set is fixedly installed on the bottom of the outer wall of the chassis, and the driving wheel set is connected to a battery through a motor drive, and the battery is connected to an electronic control processor, a 3D camera and a laser rangefinder through a power line.

5. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: A nano protective coating is fixedly installed at the bottom of the outer wall of the lower guard plate, a hydrophobic coating is coated on the bottom of the outer wall of the nano protective coating, and a wear-resistant coating is wrapped on the bottom of the outer wall of the hydrophobic coating.

6. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: A number of bubble bags are fixedly installed on the top of the outer wall of the lower guard plate, and a number of stress sensors are fixedly installed on the bottom of the inner wall of the lower guard plate. The stress sensors are connected to the electronic control processor through a thin film circuit. The stress sensors are protected by an insulating layer to prevent external factors from interfering with the signal.

7. The all-electric transport vehicle with a chassis protection structure according to claim 6, characterized in that: A micro-electric pump is fixedly installed on the bottom of the inner wall of the lower guard plate, a connecting pipe is fixedly installed on the side of the outer wall of the micro-electric pump, the connecting pipe is externally connected to the expansion foam material cylinder / air compressor, a matrix pipe is fixedly installed on the top of the outer wall of the micro-electric pump, and the matrix pipe is connected to the bubble bag, a plurality of electric control valves are fixedly installed in the matrix pipe, and the micro-electric pump and the electric control valves are connected to the electric control processor through signal lines.

8. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: The electronic control processor is connected to the accelerometer and gyroscope installed at the bottom of the inner wall of the chassis through a data signal line. A fuzzy control system and a rule base are preset in the electronic control processor, and a lifting protection signal is generated by comparing the acceleration and the tilt parameter rules of the transport vehicle.

9. The all-electric transport vehicle with a chassis protection structure according to claim 1, characterized in that: The electronic control processor also has a preset terrain classification algorithm based on machine learning, which uses a convolutional neural network to train the detected obstacle data, automatically identifies different terrains, generates corresponding lifting instructions, and uses a PID control algorithm to accurately adjust the lifting position and speed of the lower guard plate.

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