A multifunctional transport platform system

Abstract

The multifunctional transportation platform system disclosed in the present application includes: a frame body; a front steering axle installed on the frame body through a front leaf spring group; a rear electric drive axle installed on the frame body through a rear leaf spring group; a first wheel assembly installed on the front steering axle; a second wheel assembly and a drive motor installed on the rear electric drive axle; a wire-controlled steering device installed on the front steering axle and connected to the smart fuse box BCM and the vehicle controller VCU signal; a wire-controlled driving brake device and a wire-controlled parking brake device connected to the smart fuse box BCM and the vehicle controller VCU signal; the wire-controlled parking brake device is installed on the frame body and connected to the parking brake cable on the rear electric drive axle. The technical solution involved in the present application can better adapt to unmanned operation and has a high degree of automation.

Description

Technical Field

[0001] The present application relates to the technical field of transportation platforms, and more specifically, to a multifunctional transportation platform system. Background Art

[0002] With the continuous development of new energy technologies, transportation platform systems are increasingly being used in the fields of special-purpose vehicles, short-distance logistics and certain specific scenarios.

[0003] In the existing technology, the current new energy chassis of commercial vehicles are basically based on human driving and follow the traditional design: mechanical steering, mechanical pedal brakes and mechanical lever service brakes with power assistance systems. There is no fully wire-controlled new energy chassis; especially in the field of special-purpose vehicles, most of them use mature commercial vehicle chassis to add operating tools, or are modified from certain special-purpose chassis, and cannot achieve automation.

[0004] Therefore, how to provide a multifunctional transport platform system that can better adapt to unmanned operation and has a high degree of automation has become a technical problem that needs to be urgently solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a multifunctional transportation platform system, which can better adapt to unmanned operation and has a high degree of automation.

[0006] The technical solutions provided by this application are as follows:

[0007] The present application provides a multifunctional transportation platform system, comprising: a frame body; a front steering axle installed on the frame body through a front leaf spring group; a rear electric drive axle installed on the frame body through a rear leaf spring group; a first wheel assembly installed on the front steering axle; a second wheel assembly and a drive motor installed on the rear electric drive axle; a wire-controlled steering device installed on the front steering axle and connected to the smart fuse box BCM and the vehicle controller VCU signal; a wire-controlled driving brake device and a wire-controlled parking brake device connected to the smart fuse box BCM and the vehicle controller VCU signal; the wire-controlled parking brake device is installed on the frame body and connected to the parking brake cable on the rear electric drive axle.

[0008] Furthermore, in a preferred embodiment of the present invention, it also includes: a battery replacement mechanism installed on the frame body for battery replacement.

[0009] Furthermore, in a preferred embodiment of the present invention, the battery replacement mechanism includes: a battery holder body arranged on the frame body; a roller assembly arranged at the bottom of the battery holder body; a battery limiting structure arranged on one side of the battery holder body; a buffer structure arranged on the other side of the battery holder body and the battery limiting structure; the battery limiting structure has a locking state for locking the battery in the battery holder body and an unlocking state for facilitating personnel to remove the battery from the battery holder body.

[0010] Furthermore, in a preferred embodiment of the present invention, the battery limiting structure includes: a limiting beam installed on the battery holder body, a first locking piece, the first locking piece is used to lock the limiting beam on the battery holder body; a second locking piece, the second locking piece has a locking state in which the limiting beam is locked on the battery holder body and an unlocking state in which one end of the limiting beam is detached from the battery holder body.

[0011] Furthermore, in a preferred embodiment of the present invention, it also includes: a buffer connection pad provided at the bottom of the battery holder body; the buffer connection pad is connected to the transport platform frame by bolts.

[0012] Furthermore, in a preferred embodiment of the present invention, the buffer structure is specifically a rubber pad structure.

[0013] Furthermore, in a preferred embodiment of the present invention, the battery limiting structure comprises: a limiting crossbeam installed on the battery holder body, and both ends of the limiting crossbeam are detachably connected to the battery holder body by bolts.

[0014] Furthermore, in a preferred embodiment of the present invention, the battery limiting structure further comprises: a buffer rubber pad provided on a side of the limiting cross beam close to the buffer structure.

[0015] Furthermore, in a preferred embodiment of the present invention, the roller assembly includes: a bearing seat provided on the battery holder body; a bearing installed in the bearing seat; a connecting shaft installed on the bearing and connected to the battery holder body; and a roller structure sleeved and installed on the bearing seat.

[0016] Furthermore, in a preferred embodiment of the present invention, the drum assembly further comprises: an anti-slip buffer layer disposed on the periphery of the drum structure.

[0017] Furthermore, in a preferred embodiment of the present invention, the drum assembly further comprises: an anti-corrosion film disposed on the periphery of the anti-slip buffer layer.

[0018] Furthermore, in a preferred embodiment of the present invention, the wire-controlled parking brake device includes: a brake bracket installed on a frame body; a connecting lever hinged to the brake bracket; a first transmission connection mechanism hinged to the connecting lever; an electric push rod connected to the first transmission connection mechanism; one end of the electric push rod is fixed to the frame body by a pin shaft; a second transmission connection mechanism hinged to the connecting lever; a soft cable connecting bracket installed on the transmission connection mechanism away from one end of the connecting lever; a left brake soft cable and a right brake soft cable installed in the mounting hole of the soft cable connecting bracket; the left brake soft lock and the right brake soft lock are both connected to the brake drum of the rear electric drive axle.

[0019] Furthermore, in a preferred embodiment of the present invention, the first transmission connection mechanism is specifically a brake connecting plate, which is hinged to the connecting lever through a first brake connecting pin; the second transmission connection mechanism includes: a connecting clamping plate hinged to the connecting lever through a second brake connecting pin; and a transmission connecting rod installed on the connecting clamping plate and used to connect the soft cable connecting bracket.

[0020] Furthermore, in a preferred embodiment of the present invention, the first transmission connection mechanism is specifically a brake connecting plate, and the brake connecting plate is hinged to the connecting lever via a first brake connecting pin.

[0021] Furthermore, in a preferred embodiment of the present invention, the second transmission connection mechanism includes: a connecting clamp plate hinged to the connecting lever through a second brake connecting pin; and a transmission connecting rod installed on the connecting clamp plate and used to connect the soft cable connecting bracket.

[0022] Furthermore, in a preferred embodiment of the present invention, the transmission connecting rod is detachably mounted on the soft cable connecting bracket.

[0023] Furthermore, in a preferred embodiment of the present invention, the connecting lever comprises: a first connecting arm installed on the bracket body; and a second connecting arm installed on the bracket body.

[0024] Furthermore, in a preferred embodiment of the present invention, the connecting splint includes: a connecting main board for connecting the transmission connecting rod; a first connecting folding plate and a second connecting folding plate for connecting to the second connecting arm; the connecting main board, the first connecting folding plate and the second connecting folding plate are an integrally formed structure.

[0025] Furthermore, in a preferred embodiment of the present invention, it further comprises: a control-by-wire bus connected to the electric push rod; the control-by-wire bus is signal-connected to a vehicle controller VCU and a smart fuse box BCM.

[0026] Furthermore, in a preferred embodiment of the present invention, the transmission connecting rod is specifically an electric telescopic rod.

[0027] Furthermore, in a preferred embodiment of the present invention, it further comprises: a handle structure installed on the second connecting arm.

[0028] Furthermore, in a preferred embodiment of the present invention, it further comprises: a dustproof film layer disposed on the periphery of the bracket body.

[0029] Furthermore, in a preferred embodiment of the present invention, the frame body includes: a left longitudinal beam structure; a right longitudinal beam structure; a first cross beam riveted to the front side of the left longitudinal beam structure and the right longitudinal beam structure; a sixth cross beam riveted to the rear side of the left longitudinal beam structure and the right longitudinal beam structure; a first reinforcement portion, a second reinforcement portion, and a third reinforcement portion riveted between the left longitudinal beam structure and the right longitudinal beam structure.

[0030] Further, in a preferred embodiment of the present invention, the left longitudinal beam body structure includes: a left longitudinal beam front section structure; a left longitudinal beam rear section structure, the left longitudinal beam front section structure and the left longitudinal beam rear section structure are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the left longitudinal beam rear section structure; the right longitudinal beam body structure includes: a right longitudinal beam front section structure; a right longitudinal beam rear section structure, the right longitudinal beam front section structure and the right longitudinal beam rear section structure are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the right longitudinal beam rear section structure.

[0031] Furthermore, in a preferred embodiment of the present invention, the first reinforcement portion includes: a first right longitudinal reinforcement beam installed on the right longitudinal beam body structure; a first left longitudinal reinforcement beam installed on the left longitudinal beam body structure; a third cross beam; the third cross beam is welded to the first right longitudinal reinforcement beam and the first left longitudinal reinforcement beam as components and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0032] Furthermore, in a preferred embodiment of the present invention, the second reinforcement portion includes: a second right longitudinal reinforcement beam installed on the right longitudinal beam body structure; a second left longitudinal reinforcement beam installed on the left longitudinal beam body structure; a fourth cross beam; the fourth cross beam is welded to the second right longitudinal reinforcement beam and the second left longitudinal reinforcement beam as components and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0033] Furthermore, in a preferred embodiment of the present invention, the third reinforcement part includes: a third right longitudinal reinforcement beam installed on the right longitudinal beam body structure; a third left longitudinal reinforcement beam installed on the left longitudinal beam body structure; a fifth cross beam; the fifth cross beam is welded to the third right longitudinal reinforcement beam and the third left longitudinal reinforcement beam as components and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0034] Furthermore, in a preferred embodiment of the present invention, it also includes: a first front leaf spring bracket connected to the left longitudinal beam structure and the right longitudinal beam structure; and a second front leaf spring bracket connected to the left longitudinal beam structure and the right longitudinal beam structure.

[0035] Furthermore, in a preferred embodiment of the present invention, it also includes: a first rear leaf spring bracket connected to the left longitudinal beam structure and the right longitudinal beam structure; and a second rear leaf spring bracket connected to the left longitudinal beam structure and the right longitudinal beam structure.

[0036] Furthermore, in a preferred embodiment of the present invention, the first front leaf spring bracket and the second front leaf spring bracket are both riveted to the left longitudinal beam structure and the right longitudinal beam structure.

[0037] Furthermore, in a preferred embodiment of the present invention, the first rear leaf spring bracket and the second rear leaf spring bracket are both riveted to the left longitudinal beam structure and the right longitudinal beam structure.

[0038] Furthermore, in a preferred embodiment of the present invention, the wire-controlled steering device includes: a steering link; a first rotating shaft structure installed on one side of the steering link; a second rotating shaft structure installed on the other side of the steering link; a first wheel body mounting plate hinged on the first rotating shaft structure; a second wheel body mounting plate hinged on the second rotating shaft structure; a wire-controlled steering arm installed on the steering link; a first telescopic rod mechanism installed on one side of the wire-controlled steering arm and connected to the first wheel body mounting plate; a second telescopic rod mechanism installed on one side of the wire-controlled steering arm and connected to the first wheel body mounting plate; and a state control mechanism installed on the wire-controlled steering arm for controlling the telescopic state of the first telescopic rod mechanism and the second telescopic rod mechanism.

[0039] Furthermore, in a preferred embodiment of the present invention, the steering link is connected to the first rotating shaft structure and the second rotating shaft structure through a clevis connector.

[0040] Furthermore, in a preferred embodiment of the present invention, the first telescopic pull rod mechanism includes: a first telescopic member installed on the wire-controlled steering arm; a first connecting rod connected to the first telescopic member; and a first steering bracket connected to the first connecting rod and used to be connected to the first wheel body mounting plate.

[0041] Furthermore, in a preferred embodiment of the present invention, the second telescopic pull rod mechanism includes: a second telescopic member installed on the wire-controlled steering arm; a second connecting rod connected to the second telescopic member; and a second steering bracket connected to the second connecting rod and used to be connected to the second wheel body mounting plate.

[0042] Furthermore, in a preferred embodiment of the present invention, the first steering bracket is connected to the first connecting rod via a ball head structure; and the second steering bracket is connected to the second connecting rod via a ball head structure.

[0043] Furthermore, in a preferred embodiment of the present invention, the first telescopic member and the second telescopic member are an integrated structure.

[0044] Furthermore, in a preferred embodiment of the present invention, the first telescopic member and the second telescopic member are connected to the state control mechanism via a worm gear structure.

[0045] Furthermore, in a preferred embodiment of the present invention, the first telescopic member is connected to the first connecting rod via a threaded structure; and the second telescopic member is connected to the second connecting rod via a threaded structure.

[0046] Furthermore, in a preferred embodiment of the present invention, it also includes a wire-controlled steering bus connected to the state control mechanism, and the wire-controlled steering bus is connected to the vehicle controller VCU and the smart fuse box BCM through signals.

[0047] Furthermore, in a preferred embodiment of the present invention, it also includes: a first mounting portion and a second mounting portion provided on the steering link for connecting the vehicle body structure; a first steering arm connector and a second steering arm connector provided on the steering link for connecting and fixing the wire-controlled steering arm.

[0048] Furthermore, in a preferred embodiment of the present invention, it further comprises: a first buffer pad structure provided on the first mounting portion; and a second buffer pad structure provided on the second mounting portion.

[0049] Furthermore, in a preferred embodiment of the present invention, it also includes: a dust cover structure; the dust cover structure is arranged on the outside of the first telescopic pull rod mechanism and the second telescopic pull rod mechanism, and one end of the dust cover structure is connected to the wire-controlled steering arm.

[0050] Furthermore, in a preferred embodiment of the present invention, it also includes: an on-board charger provided on the frame body, used to charge the lithium battery with AC power when the transport platform stops operating; and also includes: a high-voltage electrical control cabinet provided on the frame body.

[0051] Compared with the prior art, the multifunctional transportation platform system provided by the present invention comprises: a frame body; a front steering axle installed on the frame body through a front leaf spring group; a rear electric drive axle installed on the frame body through a rear leaf spring group; a first wheel assembly installed on the front steering axle; a second wheel assembly and a drive motor installed on the rear electric drive axle; a wire-controlled steering device installed on the front steering axle and connected to the smart fuse box BCM and the vehicle controller VCU signal; a wire-controlled driving brake device and a wire-controlled parking brake device connected to the smart fuse box BCM and the vehicle controller VCU signal; the wire-controlled parking brake device is installed on the frame body and connected to the parking brake cable on the rear electric drive axle. Compared with the prior art, the technical solution involved in the present invention can meet the needs of operations in different scenarios, achieve unmanned operation, and realize mechanical automation. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0053] Figure 1 The overall intention of the multifunctional transportation platform system provided by the embodiment of the present invention;

[0054] Figure 2 It is a schematic diagram of an exploded view of a multifunctional transportation platform system involved in an embodiment of the present invention;

[0055] Figure 3 A schematic diagram of a power exchange mechanism according to an embodiment of the present invention;

[0056] Figure 4 is a schematic diagram of a drum assembly part involved in an embodiment of the present invention;

[0057] Figure 5 is a schematic diagram of a wire-controlled parking brake device according to an embodiment of the present invention;

[0058] Figure 6 is an overall schematic diagram of a frame body involved in an embodiment of the present invention;

[0059] Figure 7It is an exploded schematic diagram of a frame body involved in an embodiment of the present invention;

[0060] Figure 8 is an overall schematic diagram of a steer-by-wire device according to an embodiment of the present invention;

[0061] FIG9 is a partial schematic diagram of a steering-by-wire device including a steering link according to an embodiment of the present invention;

[0062] Fig.10 The diagram is a partial schematic diagram of a steer-by-wire device including a steer-by-wire arm portion according to an embodiment of the present invention. DETAILED DESCRIPTION

[0063] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of this application.

[0064] It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0065] It should be understood that the terms "length", "width", "up", "down", "front", "back", "first", "second", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application 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 a limitation on the present application.

[0066] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

[0067] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

[0068] Please Figures 1 to 10 As shown, the multifunctional transportation platform system provided in the embodiment of the present application includes: a frame body 2; a front steering axle 4 installed on the frame body 2 through a front leaf spring group 1; a rear electric drive axle 5 installed on the frame body 2 through a rear leaf spring group 10; a first wheel assembly 14 installed on the front steering axle 4; a second wheel assembly 15 and a drive motor 16 installed on the rear electric drive axle 5; a wire-controlled steering device 3 installed on the front steering axle 4 and connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; a wire-controlled driving brake device 17 and a wire-controlled parking brake device 6 connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; the wire-controlled parking brake device 6 is installed on the frame body 2 and connected to the parking brake cable on the rear electric drive axle 5.

[0069] The embodiment of the present invention provides a multifunctional transportation platform system, which specifically includes: a frame body 2; a front steering axle 4 installed on the frame body 2 through a front leaf spring group 1; a rear electric drive axle 5 installed on the frame body 2 through a rear leaf spring group 10; a first wheel assembly 14 installed on the front steering axle 4; a second wheel assembly 15 and a drive motor 16 installed on the rear electric drive axle 5; a wire-controlled steering device 3 installed on the front steering axle 4 and connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; a wire-controlled driving brake device 17 and a wire-controlled parking brake device 6 connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; the wire-controlled parking brake device 6 is installed on the frame body 2 and connected to the parking brake cable on the rear electric drive axle 5. Compared with the prior art, the technical solution involved in the present invention can meet the needs of operations in different scenarios, achieve unmanned operation, and realize mechanical automation. Specifically, the present invention further includes: a maintenance-free lead-acid battery 18 and a lead-acid battery rack 19 installed on the vehicle frame body 2 .

[0070] Specifically, in the embodiment of the present invention, it also includes: a battery replacement mechanism 9 installed on the frame body 2 for battery replacement.

[0071] Specifically, in an embodiment of the present invention, the battery replacement mechanism 9 includes: a battery holder body 93 arranged on the frame body 2; a roller assembly 94 arranged at the bottom of the battery holder body 93; a battery limiting structure 96 arranged on one side of the battery holder body 93; a buffer structure 95 arranged on the other side of the battery holder body 93 and the battery limiting structure 96; the battery limiting structure 96 has a locking state for locking the battery in the battery holder body 93 and an unlocking state for facilitating personnel to remove the battery from the battery holder body 93.

[0072] Specifically, in an embodiment of the present invention, the battery limiting structure 96 includes: a limiting beam installed on the battery holder body 93, a first locking piece, the first locking piece is used to lock the limiting beam on the battery holder body 93; a second locking piece, the second locking piece has a locking state in which the limiting beam is locked on the battery holder body 93 and an unlocking state in which one end of the limiting beam is detached from the battery holder body 93.

[0073] Specifically, in the embodiment of the present invention, it also includes: a buffer connection pad 92 arranged at the bottom of the battery bracket body 93; the buffer connection pad 92 is connected to the transport platform frame through bolts.

[0074] Specifically, in the embodiment of the present invention, the buffer structure 95 is specifically a rubber pad structure.

[0075] Specifically, in the embodiment of the present invention, the battery limiting structure 96 includes: a limiting crossbeam installed on the battery support body 93, and both ends of the limiting crossbeam are detachably connected to the battery support body 93 by bolts.

[0076] Specifically, in the embodiment of the present invention, the battery limiting structure 96 further includes: a buffer rubber pad provided on a side of the limiting cross beam close to the buffer structure 95 .

[0077] Specifically, in the embodiment of the present invention, the roller assembly 94 includes: a bearing seat 9403 provided on the battery holder body 93; a bearing 9402 installed in the bearing seat 9403; a connecting shaft 9401 installed on the bearing 9402 and connected to the battery holder body 93; and a roller structure 9404 sleeved and installed on the bearing seat 9403.

[0078] Specifically, in the embodiment of the present invention, the roller assembly 94 further includes: an anti-slip buffer layer disposed on the periphery of the connecting roller structure 9404 .

[0079] Specifically, in the embodiment of the present invention, the roller assembly 94 further includes: an anti-corrosion film disposed on the periphery of the anti-slip buffer layer.

[0080] Specifically, in an embodiment of the present invention, the wire-controlled parking brake device 6 includes: a brake bracket 69 installed on the frame body 2; a connecting lever 65 hinged to the brake bracket 69; a first transmission connection mechanism hinged to the connecting lever 65; an electric push rod 61 connected to the first transmission connection mechanism; one end of the electric push rod 61 is fixed to the frame body 2 by a pin shaft; a second transmission connection mechanism hinged to the connecting lever 65; a soft cable connecting bracket 211 installed at one end of the transmission connection mechanism away from the connecting lever 65; a left brake soft cable and a right brake soft cable installed in the mounting hole of the soft cable connecting bracket 211; the left brake soft lock and the right brake soft lock are both connected to the brake drum of the rear electric drive axle 5.

[0081] Specifically, in an embodiment of the present invention, the first transmission connection mechanism is specifically a brake connecting plate 63, and the brake connecting plate 63 is hinged to the connecting lever 65 through a first brake connecting pin 64; the second transmission connection mechanism includes: a connecting clamp plate 67 hinged to the connecting lever 65 through a second brake connecting pin 66; and a transmission connecting rod installed on the connecting clamp plate 67 and used to connect the soft cable connecting bracket 211.

[0082] Specifically, in the embodiment of the present invention, the first transmission connection mechanism is specifically a brake connection plate 63 , and the brake connection plate 63 is hinged to the connection lever 65 through a first brake connection pin 64 .

[0083] Specifically, in the embodiment of the present invention, the second transmission connection mechanism includes: a connection clamp plate 67 hinged to the connection lever 65 through a second brake connection pin 66; and a transmission connecting rod 610 installed on the connection clamp plate 67 and used to connect the soft cable connection bracket 211.

[0084] Specifically, in the embodiment of the present invention, the transmission connecting rod is detachably mounted on the soft cable connecting bracket 211 .

[0085] Specifically, in an embodiment of the present invention, the connecting splint 67 includes: a connecting main board 6701 for connecting the transmission connecting rod; a first connecting folding plate 6702 and a second connecting folding plate 6703 for connecting to the connecting lever 65; the connecting main board 6701, the first connecting folding plate 6702, and the second connecting folding plate 6703 are an integrally formed structure.

[0086] Specifically, in the embodiment of the present invention, it further includes: a wire control bus connected to the electric push rod 61; the wire control bus is signal-connected to the vehicle controller VCU12 and the smart fuse box BCM8.

[0087] Specifically, in the embodiment of the present invention, the transmission connecting rod is specifically an electric telescopic rod.

[0088] Specifically, in an embodiment of the present invention, the frame body 2 includes: a left longitudinal beam structure; a right longitudinal beam structure; a first cross beam 21 riveted to the front side of the left longitudinal beam structure and the right longitudinal beam structure; a sixth cross beam 29 riveted to the rear side of the left longitudinal beam structure and the right longitudinal beam structure; a first reinforcement part, a second reinforcement part, and a third reinforcement part riveted between the left longitudinal beam structure and the right longitudinal beam structure.

[0089] Specifically, in an embodiment of the present invention, the left longitudinal beam body structure includes: a left longitudinal beam front section structure 219; a left longitudinal beam rear section structure 212, the left longitudinal beam front section structure 219 and the left longitudinal beam rear section structure 212 are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the left longitudinal beam rear section structure 212; the right longitudinal beam body structure includes: a right longitudinal beam front section structure 22; a right longitudinal beam rear section structure 24, the right longitudinal beam front section structure 22 and the right longitudinal beam rear section structure 24 are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the right longitudinal beam rear section structure 24.

[0090] Specifically, in an embodiment of the present invention, the first reinforcement portion includes: a first right longitudinal reinforcement beam 25 installed on the right longitudinal beam body structure; a first left longitudinal reinforcement beam 215 installed on the left longitudinal beam body structure; a third cross beam 217; the third cross beam 217 is welded to the first right longitudinal reinforcement beam 25 and the first left longitudinal reinforcement beam 215 as a component and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0091] Specifically, in an embodiment of the present invention, the second reinforcement portion includes: a second right longitudinal reinforcement beam 26 installed on the right longitudinal beam body structure; a second left longitudinal reinforcement beam 213 installed on the left longitudinal beam body structure; a fourth cross beam 27; the fourth cross beam 27 is welded to the second right longitudinal reinforcement beam 26 and the second left longitudinal reinforcement beam 213 as a component and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0092] Specifically, in an embodiment of the present invention, the third reinforcement portion includes: a third right longitudinal reinforcement beam 28 installed on the right longitudinal beam body structure; a third left longitudinal reinforcement beam 210 installed on the left longitudinal beam body structure; a fifth cross beam 220; the fifth cross beam 220 is welded to the third right longitudinal reinforcement beam 28 and the third left longitudinal reinforcement beam 210 as a component and then connected to the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0093] Specifically, in the embodiment of the present invention, it also includes: a front leaf spring first bracket 23 connected to the left longitudinal beam structure and the right longitudinal beam structure; and a front leaf spring second bracket 216 connected to the left longitudinal beam structure and the right longitudinal beam structure.

[0094] Specifically, in the embodiment of the present invention, it also includes: a rear leaf spring first bracket 214 connected to the left longitudinal beam structure and the right longitudinal beam structure; and a rear leaf spring first bracket 211 connected to the left longitudinal beam structure and the right longitudinal beam structure.

[0095] Specifically, in the embodiment of the present invention, the first front leaf spring bracket 23 and the second front leaf spring bracket 216 are riveted to the left longitudinal beam structure and the right longitudinal beam structure.

[0096] Specifically, in the embodiment of the present invention, the rear leaf spring first bracket 214 and the rear leaf spring first bracket 211 are both riveted to the left longitudinal beam structure and the right longitudinal beam structure.

[0097] Specifically, in an embodiment of the present invention, the wire-controlled steering device 3 includes: a steering link 31; a first rotating shaft structure 3101 installed on one side of the steering link 31; a second rotating shaft structure 3102 installed on the other side of the steering link 31; a first wheel body mounting plate 3201 hinged on the first rotating shaft structure 3101; a second wheel body mounting plate 3202 hinged on the second rotating shaft structure 3102; a wire-controlled steering arm 33 installed on the steering link 31; a first telescopic rod mechanism 34 installed on one side of the wire-controlled steering arm 33 and connected to the first wheel body mounting plate 3201; a second telescopic rod mechanism 35 installed on one side of the wire-controlled steering arm 33 and connected to the first wheel body mounting plate 3201; and a state control mechanism 36 installed on the wire-controlled steering arm 33 for controlling the telescopic state of the first telescopic rod mechanism 34 and the second telescopic rod mechanism 35.

[0098] Specifically, in the embodiment of the present invention, the steering link 31 is connected to the first rotating shaft structure 3101 and the second rotating shaft structure 3102 through a clevis connector.

[0099] Specifically, in the embodiment of the present invention, the first telescopic pull rod mechanism 34 includes: a first telescopic member 3401 installed on the wire-controlled steering arm 33; a first connecting rod 3402 connected to the first telescopic member 3401; and a first steering bracket 3403 connected to the first connecting rod 3402 and used to be connected to the first wheel body mounting plate 3201.

[0100] Specifically, in the embodiment of the present invention, the second telescopic pull rod mechanism 35 includes: a second telescopic member 3501 installed on the wire-controlled steering arm 33; a second connecting rod 3502 connected to the second telescopic member 3501; and a second steering bracket 3503 connected to the second connecting rod 3502 and used to be connected to the second wheel body mounting plate 3202.

[0101] Specifically, in the embodiment of the present invention, the first steering bracket 3403 is connected to the first connecting rod 3402 through a ball head structure; the second steering bracket 3503 is connected to the second connecting rod 3502 through a ball head structure.

[0102] Specifically, in the embodiment of the present invention, the first telescopic member 3401 and the second telescopic member 3501 are an integrated structure.

[0103] Specifically, in the embodiment of the present invention, the first telescopic member 3401 and the second telescopic member 3501 are connected to the state control mechanism 36 via a worm gear structure.

[0104] Specifically, in the embodiment of the present invention, the first telescopic member 3401 is connected to the first connecting rod 3402 via a threaded structure; the second telescopic member 3501 is connected to the second connecting rod 3502 via a threaded structure.

[0105] Specifically, in the embodiment of the present invention, a wire-controlled steering bus connected to the state control mechanism 36 is also included, and the wire-controlled steering bus is connected to the vehicle controller VCU12 and the smart fuse box BCM8 through signals.

[0106] Specifically, in the embodiment of the present invention, it also includes: a first mounting portion 3801 and a second mounting portion 3802 provided on the steering link 31 for connecting the vehicle body structure; a first steering arm connector 3803 and a second steering arm connector 3804 provided on the steering link 31 for connecting and fixing the wire-controlled steering arm 33.

[0107] Specifically, in the embodiment of the present invention, it further includes: a first buffer pad structure 3901 disposed on the first mounting portion 3801 ; and a second buffer pad structure 3902 disposed on the second mounting portion 3802 .

[0108] Specifically, in the embodiment of the present invention, it further includes: a dust cover structure 310 ; the dust cover structure 310 is arranged outside the first telescopic rod mechanism 34 and the second telescopic rod mechanism 35 , and one end of the dust cover structure 310 is connected to the wire-controlled steering arm 33 .

[0109] Furthermore, in a preferred embodiment of the present invention, it also includes: an on-board charger provided on the frame body 2, used to charge the lithium battery with AC power when the transport platform stops operating; and also includes: a high-voltage electrical control cabinet provided on the frame body 2.

[0110] Example 1

[0111] The embodiment of the present invention provides a multifunctional transport platform system, which specifically includes: a frame body 2; a front steering axle 4 installed on the frame body 2 through a front leaf spring group 1; a rear electric drive axle 5 installed on the frame body 2 through a rear leaf spring group 10; a first wheel assembly 14 installed on the front steering axle 4; a second wheel assembly 15 and a drive motor 16 installed on the rear electric drive axle 5; a wire-controlled steering device 3 installed on the front steering axle 4 and connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; a wire-controlled driving brake device 17 and a wire-controlled parking brake device 6 connected to the smart fuse box BCM8 and the vehicle controller VCU12 signal; the wire-controlled parking brake device 6 is installed on the frame body 2 and connected to the parking brake cable on the rear electric drive axle 5. Compared with the prior art, the technical solution involved in the present invention can meet the needs of different scene operations, achieve unmanned operation, and realize mechanical automation.

[0112] Example 2

[0113] Repeat Example 1, except that: in the embodiment of the present invention, it further includes: a battery replacement mechanism installed on the frame body 2 for battery replacement. The battery replacement mechanism includes: a battery holder body 93 provided on the frame body 2; a roller assembly 94 provided at the bottom of the battery holder body 93; a battery limiting structure 96 provided on one side of the battery holder body 93; a buffer structure 95 provided on the other side of the battery holder body 93 and the battery limiting structure 96; the battery limiting structure 96 has a locked state for locking the battery in the battery holder body 93 and an unlocked state for facilitating personnel to remove the battery from the battery holder body 93.

[0114] The battery limiting structure 96 includes: a limiting beam installed on the battery support body 93, a first locking member, the first locking member is used to lock the limiting beam on the battery support body 93; a second locking member, the second locking member has a locking state of locking the limiting beam on the battery support body 93 and an unlocking state of unlocking so that one end of the limiting beam is separated from the battery support body 93. It also includes: a buffer connection pad provided at the bottom of the battery support body 93; the buffer connection pad is connected to the transport platform frame by bolts.

[0115] The buffer structure 95 is specifically a rubber pad structure. The battery limiting structure 96 includes: a limiting beam installed on the battery support body 93, and both ends of the limiting beam are detachably connected to the battery support body 93 by bolts.

[0116] The battery limiting structure 96 further includes: a buffer rubber pad provided on the side of the limiting cross beam close to the buffer structure 95. The roller assembly 94 includes: a bearing seat 9403 provided on the battery support body 93; a bearing 9402 installed in the bearing seat 9403; a connecting shaft 9401 installed on the bearing 2403 and connected to the battery support body 93; and a roller structure 9404 sleeved and installed on the bearing seat 9403. The roller assembly 94 further includes: an anti-skid buffer layer provided on the periphery of the connecting roller structure 9404. The roller assembly 94 further includes: an anti-corrosion film provided on the periphery of the anti-skid buffer layer.

[0117] Example 3

[0118] Example 2 is repeated, with the difference that: the wire-controlled parking brake device 6 includes: a brake bracket 69 installed on the frame body 2; a connecting lever 65 hinged to the brake bracket 69; a first transmission connection mechanism hinged to the connecting lever 65; an electric push rod 61 connected to the first transmission connection mechanism; one end of the electric push rod 61 is fixed to the frame body 2 by a pin; a second transmission connection mechanism hinged to the connecting lever 65; a soft cable connecting bracket 211 installed at one end of the transmission connection mechanism away from the connecting lever 65; a left brake soft cable and a right brake soft cable installed in the mounting hole of the soft cable connecting bracket 211; the left brake soft lock and the right brake soft lock are both connected to the brake drum of the rear electric drive axle 5.

[0119] Among them, the first transmission connection mechanism is specifically a brake connecting plate 63, and the brake connecting plate 63 is hinged to the connecting lever 65 through a first brake connecting pin 64; the second transmission connection mechanism includes: a connecting clamp plate 67 hinged to the connecting lever 65 through a second brake connecting pin 66; and a transmission connecting rod installed on the connecting clamp plate 67 and used to connect the soft cable connecting bracket 211.

[0120] The first transmission connection mechanism is specifically a brake connection plate 63 , and the brake connection plate 63 is hinged to the connection lever 65 via a first brake connection pin 64 .

[0121] The second transmission connection mechanism includes: a connection clamp plate 67 hinged to the connection lever 65 through a second brake connection pin 66; and a transmission connecting rod installed on the connection clamp plate 67 and used to connect the soft cable connection bracket 211. The transmission connecting rod is detachably installed on the soft cable connection bracket 211.

[0122] The connecting splint 67 includes: a connecting main plate 6701 for connecting the transmission connecting rod; a first connecting folding plate 6702 and a second connecting folding plate 6703 for connecting with the connecting lever 65; the connecting main plate 6701, the first connecting folding plate 6702, and the second connecting folding plate 6703 are an integrally formed structure.

[0123] This embodiment also includes: a wire control bus connected to the electric push rod 61; the wire control bus is connected to the vehicle controller VCU12 and the smart fuse box BCM8 by signal. The transmission connecting rod is specifically an electric telescopic rod. It also includes: a dustproof film layer arranged on the periphery of the bracket body.

[0124] Example 4

[0125] Repeat Example 3, with the difference being that the vehicle frame body 2 includes: a left longitudinal beam structure; a right longitudinal beam structure; a first cross beam 21 riveted to the front side of the left longitudinal beam structure and the right longitudinal beam structure; a sixth cross beam 29 riveted to the rear side of the left longitudinal beam structure and the right longitudinal beam structure; a first reinforcement portion, a second reinforcement portion, and a third reinforcement portion riveted between the left longitudinal beam structure and the right longitudinal beam structure.

[0126] The left longitudinal beam structure includes: a left longitudinal beam front section structure 219; a left longitudinal beam rear section structure 212, wherein the left longitudinal beam front section structure 219 and the left longitudinal beam rear section structure 212 are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the left longitudinal beam rear section structure 212;

[0127] The right longitudinal beam structure includes: a right longitudinal beam front section structure 22; a right longitudinal beam rear section structure 24, the right longitudinal beam front section structure 22 and the right longitudinal beam rear section structure 24 are connected by rivets; the first reinforcement part, the second reinforcement part, the third reinforcement part and the right longitudinal beam rear section structure 24 are riveted.

[0128] Among them, the first reinforcement part includes: a first right longitudinal reinforcement beam 25 installed on the right longitudinal beam body structure; a first left longitudinal reinforcement beam 215 installed on the left longitudinal beam body structure; a third cross beam 217; the third cross beam 217 is welded with the first right longitudinal reinforcement beam 25 and the first left longitudinal reinforcement beam 215 into a component and then connected with the left longitudinal beam body structure and the right longitudinal beam body structure through rivets.

[0129] The second reinforcement part includes: a second right longitudinal reinforcement beam 26 installed on the right longitudinal beam structure; a second left longitudinal reinforcement beam 213 installed on the left longitudinal beam structure; a fourth cross beam 27; the fourth cross beam 27 is welded with the second right longitudinal reinforcement beam 26 and the second left longitudinal reinforcement beam 213 to form a component and then connected to the left longitudinal beam structure and the right longitudinal beam structure through rivets. The third reinforcement part includes: a third right longitudinal reinforcement beam 28 installed on the right longitudinal beam structure; a third left longitudinal reinforcement beam 210 installed on the left longitudinal beam structure; a fifth cross beam 220; the fifth cross beam 220 is welded with the third right longitudinal reinforcement beam 28 and the third left longitudinal reinforcement beam 210 to form a component and then connected to the left longitudinal beam structure and the right longitudinal beam structure through rivets.

[0130] In the embodiment of the present invention, it also includes: a front leaf spring first bracket 23 connected to the left longitudinal beam structure and the right longitudinal beam structure; a front leaf spring second bracket 216 connected to the left longitudinal beam structure and the right longitudinal beam structure. It also includes: a rear leaf spring first bracket 214 connected to the left longitudinal beam structure and the right longitudinal beam structure; a rear leaf spring first bracket 211 connected to the left longitudinal beam structure and the right longitudinal beam structure. The front leaf spring first bracket 23 and the front leaf spring second bracket 216 are riveted to the left longitudinal beam structure and the right longitudinal beam structure. The rear leaf spring first bracket 214 and the rear leaf spring first bracket 211 are riveted to the left longitudinal beam structure and the right longitudinal beam structure.

[0131] Example 5

[0132] Embodiment 4 is repeated, except that: the wire-controlled steering device 3 includes: a steering link 31; a first rotating shaft structure 3101 installed on one side of the steering link 31; a second rotating shaft structure 3102 installed on the other side of the steering link 31; a first wheel body mounting plate 3201 hinged on the first rotating shaft structure 3101; a second wheel body mounting plate 3202 hinged on the second rotating shaft structure 3102; a wire-controlled steering arm 33 installed on the steering link 31; a first telescopic tie rod mechanism 34 installed on one side of the wire-controlled steering arm 33 and connected to the first wheel body mounting plate 3201; a second telescopic tie rod mechanism 35 installed on one side of the wire-controlled steering arm 33 and connected to the first wheel body mounting plate 3201; and a state control mechanism 36 installed on the wire-controlled steering arm 33 for controlling the telescopic state of the first telescopic tie rod mechanism 34 and the second telescopic tie rod mechanism 35.

[0133] The steering link 31 is connected to the first rotating shaft structure 3101 and the second rotating shaft structure 3102 via a clevis connector.

[0134] The first telescopic rod mechanism 34 includes: a first telescopic member 3401 mounted on the wire-controlled steering arm 33; a first connecting rod 3402 connected to the first telescopic member 3401; a first steering bracket 3403 connected to the first connecting rod 3402 and used to be connected to the first wheel body mounting plate 3201. The second telescopic rod mechanism 35 includes: a second telescopic member 3501 mounted on the wire-controlled steering arm 33; a second connecting rod 3502 connected to the second telescopic member 3501; and a second steering bracket 3503 connected to the second connecting rod 3502 and used to be connected to the second wheel body mounting plate 3202.

[0135] In an embodiment of the present invention, the first steering bracket 3403 is connected to the first connecting rod 3402 via a ball head structure; the second steering bracket 3503 is connected to the second connecting rod 3502 via a ball head structure, the first telescopic member 3401 and the second telescopic member 3501 are an integrated structure, the first telescopic member 3401 and the second telescopic member 3501 are connected to the state control mechanism 36 via a worm gear structure, the first telescopic member 3401 and the first connecting rod 3402 are connected via a threaded structure; the second telescopic member 3501 and the second connecting rod 3502 are connected via a threaded structure.

[0136] In the embodiment of the present invention, a wire-controlled steering bus connected to the state control mechanism 36 is also included, and the wire-controlled steering bus is connected to the vehicle controller VCU12 and the smart fuse box BCM8 through signals.

[0137] It also includes: a first mounting portion 3801 and a second mounting portion 3802 disposed on the steering link 31 for connecting to the vehicle body structure; a first steering arm connector 3803 and a second steering arm connector 3804 disposed on the steering link 31 for connecting and fixing the wire-controlled steering arm 33 .

[0138] The device further comprises: a first buffer pad structure 3901 disposed on the first mounting portion 3801 ; and a second buffer pad structure 3902 disposed on the second mounting portion 3802 .

[0139] The system further comprises: a dust cover structure 310 ; the dust cover structure 310 is disposed outside the first telescopic pull rod mechanism 34 and the second telescopic pull rod mechanism 35 , and one end of the dust cover structure 310 is connected to the wire-controlled steering arm 33 .

[0140] It also includes: an on-board charger arranged on the frame body 2, which is used to charge the lithium battery with AC power when the transport platform stops operating; and a high-voltage electrical control cabinet arranged on the frame body 2.

[0141] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional transport platform system, characterized in that: include: The frame body (2); A front steering axle (4) mounted on the vehicle frame body (2) via a front leaf spring assembly (1); A rear electric drive axle (5) mounted on the vehicle frame body (2) via a rear leaf spring assembly (10); A first wheel assembly (14) mounted on the front steering axle (4); A second wheel assembly (15) and a drive motor (16) mounted on the rear electric drive axle (5); A wire-controlled steering device (3) mounted on the front steering axle (4) and connected to signals of an intelligent fuse box BCM (8) and a vehicle controller VCU (12); a wire-controlled driving brake device (17) and a wire-controlled parking brake device (6) connected to signals of the intelligent fuse box BCM (8) and the vehicle controller VCU (12); the wire-controlled parking brake device (6) mounted on the vehicle frame body (2) and connected to a parking brake cable on the rear electric drive axle (5); The wire-controlled parking brake device (6) comprises: a brake bracket (69) mounted on a vehicle frame body (2); a connecting lever (65) hinged to the brake bracket (69); a first transmission connection mechanism hinged to the connecting lever (65); an electric push rod (61) connected to the first transmission connection mechanism; one end of the electric push rod (61) is fixed to the vehicle frame body (2) via a pin; a second transmission connection mechanism hinged to the connecting lever (65); a soft cable connection bracket (611) mounted on an end of the transmission connection mechanism away from the connecting lever; a left brake soft cable and a right brake soft cable mounted in a mounting hole of the soft cable connection bracket (611); the left brake soft lock and the right brake soft lock are both connected to the brake drum of the rear electric drive axle (5); The wire-controlled steering device (3) comprises: a steering link (31); a first rotating shaft structure (3101) mounted on one side of the steering link (31); a second rotating shaft structure 3102 mounted on the other side of the steering link (31); a first wheel body mounting plate (3201) hinged on the first rotating shaft structure 3101; a second wheel body mounting plate (3202) hinged on the second rotating shaft structure (3102); a wire-controlled steering arm (33) mounted on the steering link (31); a first telescopic tie rod mechanism (34) mounted on one side of the wire-controlled steering arm (33) and connected to the first wheel body mounting plate (3201); a second telescopic tie rod mechanism (35) mounted on one side of the wire-controlled steering arm (33) and connected to the first wheel body mounting plate (3201); and a state control mechanism (36) mounted on the wire-controlled steering arm (33) and used for controlling the telescopic state of the first telescopic tie rod mechanism (34) and the second telescopic tie rod mechanism (35).

2. The multifunctional transport platform system according to claim 1, characterized in that: Also includes: A battery replacement mechanism (9) mounted on the vehicle frame body (2) and used for battery replacement.

3. The multifunctional transportation platform system according to claim 2, characterized in that: The battery replacement mechanism comprises: a battery holder body (93) arranged on the frame body (2); a roller assembly (94) arranged at the bottom of the battery holder body (93); a battery limiting structure (96) arranged on one side of the battery holder body (93); and a buffer structure (95) arranged on the other side of the battery holder body (93) and the battery limiting structure (96); the battery limiting structure (96) has a locked state for locking the battery in the battery holder body (93) and an unlocked state for facilitating personnel to remove the battery from the battery holder body (93).

4. The multifunctional transport platform system according to claim 3, characterized in that: The battery limiting structure (96) comprises: a limiting beam mounted on the battery holder body (93); a first locking member, the first locking member being used to lock the limiting beam on the battery holder body (93); and a second locking member, the second locking member having a locked state in which the limiting beam is locked on the battery holder body (93) and an unlocked state in which one end of the limiting beam is detached from the battery holder body (93).

5. The multifunctional transport platform system according to claim 4, characterized in that: The first transmission connection mechanism is specifically a brake connection plate (63), and the brake connection plate (63) is hinged to the connection lever (65) via a first brake connection pin (64); the second transmission connection mechanism comprises: a connection clamping plate (67) hinged to the connection lever (65) via a second brake connection pin (66); and a transmission connecting rod (610) mounted on the connection clamping plate (67) and used to connect the soft cable connection bracket (611).

6. The multifunctional transportation platform system according to claim 5, characterized in that: The frame body (2) comprises: a left longitudinal beam structure; a right longitudinal beam structure; a first cross beam (21) riveted to the front side of the left longitudinal beam structure and the right longitudinal beam structure; a sixth cross beam (29) riveted to the rear side of the left longitudinal beam structure and the right longitudinal beam structure; and a first reinforcement part, a second reinforcement part, and a third reinforcement part riveted between the left longitudinal beam structure and the right longitudinal beam structure.

7. The multifunctional transport platform system according to claim 6, characterized in that: The left longitudinal beam body structure comprises: a left longitudinal beam front section structure (219); a left longitudinal beam rear section structure (212), wherein the left longitudinal beam front section structure (219) and the left longitudinal beam rear section structure (212) are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the left longitudinal beam rear section structure (212); the right longitudinal beam body structure comprises: a right longitudinal beam front section structure (22); a right longitudinal beam rear section structure (24), wherein the right longitudinal beam front section structure (22) and the right longitudinal beam rear section structure (24) are connected by rivets; the first reinforcement part, the second reinforcement part, and the third reinforcement part are riveted to the right longitudinal beam rear section structure (24).

8. The multifunctional transport platform system according to any one of claims 1 to 7, characterized in that: Also includes: The vehicle-mounted charger (11) provided on the vehicle frame body (2) is used to charge the lithium battery with commercial electricity when the transport platform stops operating; and further comprises: a high-voltage electrical appliance control cabinet (13) provided on the vehicle frame body (2).

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