Novel two-wheeled vehicle rear suspension structure

Abstract

The invention provides a novel two-wheeled vehicle rear suspension structure which comprises a vehicle frame and a rear suspension, a guide shaft and a hanging bracket shaft which extend in the transverse direction and are parallel to each other are arranged on the supporting part; the two spring plates are located on the two sides of the supporting part respectively, one ends of the spring plates are provided with first installation sleeves corresponding to the guide shafts, and the other ends of the spring plates are provided with second installation sleeves corresponding to the rear wheels. The first mounting sleeve sleeves the guide shaft; the hanger shaft is provided with a hanger corresponding to the spring plate; the two second installation sleeves are connected through a wheel shaft and used for installing a rear wheel. The two spring plates located on the two sides of the frame are adopted, a traditional discrete structure of a bottom fork and a shock absorber is replaced, and the effects that the structure is simplified, matching performance is good, and installation and maintenance are convenient are achieved; wherein the elastic deformation of the spring plate can absorb the impact of a road surface, so that the driving comfort is effectively improved; and during braking, the spring plate is stressed and compressed, so that the wheelbase of the vehicle can be dynamically prolonged, the braking distance is effectively shortened, and the braking safety is improved.

Description

Technical Field

[0001] This application relates to the field of transportation technology, specifically to a novel rear suspension structure for a two-wheeled vehicle. Background Technology

[0002] With the rapid development of the social economy and the acceleration of urbanization, electric two-wheeled vehicles, electric motorcycles and other two-wheeled transportation tools have been widely penetrated into various scenarios of daily life and business operations due to their advantages such as flexibility, convenience, low travel costs and convenient charging. In particular, they have become the core transportation tools for industries such as express delivery and food delivery, and their market share continues to rise.

[0003] The rear suspension systems of existing two-wheeled vehicles generally adopt a combination structure of "swing fork + shock absorber". This structure has many inherent defects in practical applications and is difficult to meet the diverse needs of current users for the driving performance of two-wheeled vehicles: First, the structure has poor compatibility and is complicated to install and maintain. The swing fork and shock absorber are independent components, and the assembly precision requirements for both are high. Subsequent maintenance requires testing and debugging of each component separately, increasing maintenance costs and time costs. Second, the space utilization rate is low. The component layout of the traditional rear suspension system occupies a lot of space at the rear of the vehicle, which restricts the installation layout of electrical components and is also difficult to adapt to large-sized wheels. In order to facilitate the driver to get on and off the vehicle, the current design often adopts a low frame with small wheels. However, the poor passability of small wheels further affects driving stability. Third, the braking safety is insufficient. Some economical electric two-wheelers are not even equipped with a rear suspension, resulting in extremely poor comfort. Even in models equipped with a traditional rear suspension, the shock absorber technology is difficult to match, and it cannot effectively optimize the vehicle's center of gravity and wheel track during braking, resulting in a long braking distance and posing a safety hazard.

[0004] Therefore, the above problems urgently need to be solved. Summary of the Invention

[0005] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a novel rear suspension structure for two-wheeled vehicles.

[0006] This application provides a novel rear suspension structure for a two-wheeled vehicle, including... A vehicle frame, the frame including a support for mounting the rear wheel; The support is provided with a guide shaft and a hanger shaft that extend laterally and are parallel to each other; The spring plate includes two spring plates, which are located on both sides of the support part. One end of the spring plate is provided with a first mounting sleeve corresponding to the guide shaft, and the other end is provided with a second mounting sleeve corresponding to the rear wheel. The first mounting sleeve is fitted onto the guide shaft and forms a rotatable connection with the vehicle frame; A hanger is provided on the hanger shaft corresponding to the spring plate, which is used to support and limit the spring plate; The two second mounting sleeves are connected by a wheel axle for mounting the rear wheel.

[0007] Furthermore, The hanger includes a mounting part connected to the hanger shaft and a limiting part connected to the spring plate; The mounting part is sleeved on the hanger shaft and can rotate relative to the hanger shaft; The limiting part has a matching strip-shaped channel corresponding to the spring plate for the spring plate to pass through.

[0008] Furthermore, The frame also includes a connecting part for mounting the front wheel; The front wheel is mounted via a front fork at the end of the connecting part away from the support part; The fork is rotatably connected to the connecting part.

[0009] Furthermore, The connecting part is annular and includes parallel extension rods and connecting bars located at both ends of the extension rods; The extension direction of the extension rod is parallel to the travel direction of the rear wheel; The connecting rod is arc-shaped, and its two ends are connected to the corresponding extension rods to form a closed structure.

[0010] Furthermore, The connecting part is also equipped with a handlebar; The handlebar is located at the end of the connecting part away from the front fork and is rotatably connected to the connecting part; The fork is connected to the handlebars via a steering assembly for synchronous rotation.

[0011] Furthermore, The steering assembly includes a master steering wheel fixedly mounted on the handlebars and a slave steering wheel fixedly mounted on the front fork; The main steering wheel and the secondary steering wheel are connected by a steel cable core; The number of steel cable cores includes two, which are located on both sides of the connecting part; The connecting part is provided with corresponding steering sleeves for each of the two steel cable cores, which are used to restrict the path of the steel cable cores and for protection.

[0012] Furthermore, The vehicle frame also includes a cargo-carrying section; The loading section is located below the connecting section and includes a C-shaped frame and a U-shaped crossbeam; The closed end of the frame is fixedly connected to the support part, and the open end is connected to the connecting part through connecting rods. The number of crossbeams includes multiple beams, which are evenly arranged along the opening direction of the frame and fixedly connected to the frame at both ends.

[0013] Furthermore, A cross brace is also provided between the two connecting rods; The number of cross braces includes multiple cross braces that are parallel to each other and evenly distributed along the extension direction of the connecting rod, used to improve the strength of the frame and isolate the front wheel from the cargo section.

[0014] Furthermore, The support section is also equipped with a seat; The seat is fixedly mounted on the support and is located above the rear wheel.

[0015] Furthermore, The support section also contains a battery; The battery is located between the connecting part and the rear wheel and is used to provide power to the entire vehicle. A protective cover is provided on the outer side of the support corresponding to the battery.

[0016] The advantages and positive effects of this application are: This technical solution replaces the traditional separate structure of "flat fork + shock absorber" by using two leaf springs located on both sides of the frame, achieving the effects of simplified structure, good compatibility, and convenient installation and maintenance. Among them, the elastic deformation of the leaf springs can absorb road impacts, effectively improving ride comfort; during braking, the compression of the leaf springs can dynamically extend the vehicle's wheelbase, effectively shortening the braking distance and improving braking safety; and the overall structural layout effectively improves the space utilization of the rear of the vehicle, making it easier to arrange electrical components and adapt to large-size wheels. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the novel two-wheeled vehicle rear suspension structure provided in the embodiments of this application; Figure 2 A schematic diagram of the steering assembly of the novel two-wheeled vehicle rear suspension structure provided in this application embodiment; Figure 3 A schematic diagram of the spring plate of the novel two-wheeled vehicle rear suspension structure provided in the embodiments of this application.

[0018] The text labels in the diagram represent: 100-frame; 110-rear wheel; 120-guide shaft; 130-cantilever shaft; 131-cantilever; 140-front wheel; 141-front fork; 150-handlebars; 160-seat; 200-leaf spring; 201-first mounting sleeve; 202-second mounting sleeve; 300-master steering wheel; 310-secondary steering wheel; 320-steel cable core; 321-steering sleeve. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solution of this application, the application will be described in detail below with reference to the accompanying drawings. The description in this section is only exemplary and explanatory, and should not be used to limit the scope of protection of this application.

[0020] Please refer to Figures 1-3 This embodiment provides a novel rear suspension structure for a two-wheeled vehicle, including a frame 100. The frame 100 includes a support portion for mounting a rear wheel 110. The support portion is provided with a guide shaft 120 and a hanger shaft 130 extending laterally and parallel to each other. There are two spring plates 200, located on opposite sides of the support portion. One end of the spring plate 200 is provided with a first mounting sleeve 201 corresponding to the guide shaft 120, and the other end is provided with a second mounting sleeve 202 corresponding to the rear wheel 110. The first mounting sleeve 201 is sleeved on the guide shaft 120 and rotatably connected to the frame 100. The hanger shaft 130 is provided with a hanger 131 corresponding to the spring plate 200 for supporting and limiting the spring plate 200. The two second mounting sleeves 202 are connected by a wheel axle for mounting the rear wheel 110.

[0021] In this embodiment, the frame 100 has a support for mounting the rear wheel 110; the support is provided with two shafts that extend laterally along the vehicle and are parallel to each other: a guide shaft 120 and a hanger shaft 130, both of which are fixed to the frame 100.

[0022] In this embodiment, the spring plate 200 is a long strip leaf spring structure, and there are two of them, which are respectively arranged on the left and right sides of the frame support. Each spring plate 200 has a first mounting sleeve 201 at the front end and a second mounting sleeve 202 at the rear end.

[0023] In this embodiment, the first mounting sleeve 201 is sleeved on the guide shaft 120 and locked by a nut, so that the first mounting sleeve 201 and the guide shaft 120 can rotate relative to each other, but cannot be displaced relative to each other.

[0024] In this embodiment, hangers 131 are provided on the hanger shaft 130 at the middle position of the two spring plates 200, so that the spring plates 200 obtain a middle support point at the hangers 131 and maintain their stable working posture.

[0025] In this embodiment, the two spring plates 200 are connected by a wheel axle through the second mounting sleeves 202 on both sides, and the wheel axle is fixedly connected to the second mounting sleeves 202 by a nut, thereby installing the rear wheel 110.

[0026] In this embodiment, the spring plate 200 simultaneously undertakes the support function of a traditional "flat fork" and the elastic buffer function of a "shock absorber". When the vehicle is in motion, the impact force caused by uneven road surface acts on the rear wheel 110 and is transmitted to the rear end of the spring plate 200, causing the spring plate 200 to undergo elastic deformation, thereby absorbing vibration and improving ride comfort.

[0027] During braking, the rear wheel 110 is subjected to braking force, which pulls the frame 100 backward through the spring plate 200. At this time, the spring plate 200 is further compressed and deformed due to the force, resulting in a dynamic extension of the vehicle wheelbase, which helps to shorten the braking distance and improve braking safety.

[0028] In a preferred embodiment, the hanger 131 includes a mounting part connected to the hanger shaft 130 and a limiting part connected to the spring plate 200; the mounting part is sleeved on the hanger shaft 130 and can rotate relative to the hanger shaft 130; the limiting part is provided with a matching strip-shaped channel corresponding to the spring plate 200 for the spring plate 200 to pass through.

[0029] In this embodiment, the hanger 131 mainly includes an installation part connected to the hanger shaft 130 and a limiting part that cooperates with the spring plate 200; the installation part is specifically a hanger sleeve sleeved on the hanger shaft 130; a sliding bearing or bushing can be provided in the hanger sleeve so that it can rotate flexibly relative to the fixed hanger shaft 130, thereby reducing the frictional resistance generated when the spring plate 200 swings.

[0030] In this embodiment, the limiting part extends outward from the mounting part, and a strip-shaped channel matching the thickness and width of the spring plate 200 is provided on its main body; the strip-shaped channel runs through the front and rear direction of the vehicle, and the middle section of the spring plate 200 passes through this channel; the side wall of the channel can restrain the lateral swing of the spring plate 200, ensuring that it maintains a stable movement trajectory during driving.

[0031] In the assembled state, the front end of the spring plate 200 is connected to the guide shaft 120 through the first mounting sleeve 201, the rear end is connected to the rear wheel axle through the second mounting sleeve 202, and the middle part is supported and limited by the strip channel of the hanger 131; this three-point support structure constitutes a stable lever system.

[0032] When the vehicle travels over a bumpy road, the rear wheel 110 is impacted and bounces upward, causing the rear end of the spring plate 200 to move upward. At this time, the spring plate 200 bends and deforms with the strip channel of the hanger 131 as the intermediate fulcrum, thereby efficiently absorbing and buffering the impact energy. Since the hanger 131 can rotate slightly around the hanger shaft 130, unnecessary torsional stress is avoided when the spring plate deforms.

[0033] Under braking conditions, the rear wheel 110 is subjected to a rearward braking force, which pulls the frame 100 backward through the spring plate 200. At this time, the overall stress state of the spring plate 200 changes, and the part of it in the strip channel of the hanger 131 will undergo complex bending deformation due to pressure. This deformation process, together with the rotation at the guide shaft 120, realizes the downward shift of the vehicle's center of gravity and the dynamic extension of the wheelbase, effectively improving braking stability.

[0034] In a preferred embodiment, the frame 100 further includes a connecting portion for mounting a front wheel 140; the front wheel 140 is mounted on the end of the connecting portion away from the support portion via a front fork 141; the front fork 141 is rotatably connected to the connecting portion.

[0035] In this embodiment, the frame 100 also includes a connecting part, the main function of which is to connect and install the front wheel assembly of the vehicle; the connecting part is located at the front of the frame as a whole, one end of which is connected to the support part for mounting the rear wheel 110, and the other end is used to mount the front wheel 140.

[0036] In this embodiment, the front wheel 140 is mounted to the front end of the connecting part via a front fork 141 assembly.

[0037] Specifically, the front fork 141 typically includes a pair of downwardly extending fork arms and a connecting bridge connecting the upper parts of the two fork arms; the lower ends of the two fork arms are respectively provided with mounting holes, and the front wheel axle passes through the hub of the front wheel 140 and is fixed in the two mounting holes, thereby realizing the installation and load-bearing of the front wheel 140.

[0038] In this embodiment, the connecting bridge portion of the front fork 141 and the connecting portion of the frame 100 form a rotatable connection; this is the basis for realizing the vehicle steering function.

[0039] Specifically, a downward-opening tubular or U-shaped structure is provided at the front end of the connecting part, and the connecting bridge of the front fork 141 is pivotally connected to the seat tube through a main steering shaft; typically, a bearing or bushing is installed at the pivot part to ensure that the front fork 141 can rotate flexibly and smoothly left and right relative to the frame 100 around the vertical axis.

[0040] In a preferred embodiment, the connecting part is annular and includes parallel extension rods and connecting bars located at both ends of the extension rods; the extension direction of the extension rods is parallel to the driving direction of the rear wheel 110; the connecting rods are arc-shaped and their two ends are respectively connected to the corresponding extension rods to form a closed structure.

[0041] In this embodiment, the connecting part of the frame 100 is constructed as a rigid frame structure that is an integral closed ring; the ring structure is mainly composed of a pair of extension rods and a pair of connecting rods.

[0042] In this embodiment, the extension rod and the connecting rod can be made of metal tubing with round, rectangular or other cross sections bent and welded, or they can be made of high-strength sheet metal stamped and formed; the entire annular connecting part is a whole component, and is rigidly connected to the frame support part through its rear end, forming the key front module of the load-bearing frame.

[0043] In a preferred embodiment, the connecting part is further provided with a handlebar 150; the handlebar 150 is located at the end of the connecting part away from the front fork 141 and is rotatably connected to the connecting part; the front fork 141 and the handlebar 150 are connected by a steering assembly for synchronous rotation.

[0044] In this embodiment, the handlebar 150 is rotatably connected to the frame 100 via a pivoting mechanism.

[0045] Specifically, an upward-extending riser or mounting base can be provided on the connecting part, with bearings installed inside; the steering column of the handlebar 150 is inserted into the riser from above, and the handlebar 150 can rotate flexibly and smoothly left and right relative to the frame 100 around a basically vertical axis through components such as upper cup, lower cup, and ball bearings.

[0046] In this embodiment, in order to achieve directional control, the rotation of the handlebar 150 needs to be able to be transmitted to the front wheel 140; therefore, a steering assembly is provided between the front fork 141 and the handlebar 150; the basic function of the steering assembly is to synchronously and reliably transmit the rotational motion of the handlebar 150 to the front fork 141, so that the front fork 141 drives the front wheel 140 to rotate synchronously, thereby realizing the steering of the vehicle.

[0047] In a preferred embodiment, the steering assembly includes a main steering wheel 300 fixedly mounted on the handlebar 150 and a secondary steering wheel 310 fixedly mounted on the front fork 141; the main steering wheel 300 and the secondary steering wheel 310 are connected by a steel cable core 320; the number of steel cable cores 320 includes two, respectively located on both sides of the connecting portion; the connecting portion is provided with corresponding steering sleeves 321 for each of the two steel cable cores 320, for limiting the path of the steel cable cores 320 and for protection.

[0048] In this embodiment, the steering assembly adopts a transmission system consisting of a main steering wheel, a secondary steering wheel, and a flexible steel cable to achieve reliable and flexible steering linkage between the handlebars 150 and the front fork 141.

[0049] In this embodiment, the core components of the steering assembly include a master steering wheel 300 and a slave steering wheel 310. The master steering wheel 300 is fixedly mounted on the steering column of the handlebar 150 or a component rigidly connected to the steering column, so that it can rotate synchronously with the rotation of the handlebar 150. The slave steering wheel 310 is fixedly mounted on the connecting bridge of the front fork 141 or its steering shaft, so that it can drive the front fork 141 to rotate as a whole. The master and slave steering wheels are usually circular discs, with grooves, holes or anchor points for fixing and winding steel cables on their circumference or at specific positions.

[0050] In this embodiment, the power is transmitted between the main steering wheel 300 and the secondary steering wheel 310 via a steel cable core 320.

[0051] Specifically, there are two steel cable cores 320, which are respectively arranged on the left and right sides of the frame connection part; the two ends of each steel cable core 320 are fixed to the main steering wheel 300 and the secondary steering wheel 310 in a specific manner.

[0052] In this embodiment, to ensure the stability of the path of the two steel cable cores 320 when transmitting steering force and to prevent interference and wear with the frame or other components, a dedicated steering sleeve 321 is provided on the connection part of the frame 100 corresponding to the direction of each steel cable core 320. Its main functions are threefold: first, to provide physical protection for the steel cable cores 320, preventing them from being scratched by external foreign objects or corroded by mud and water; second, to precisely define the transmission path of the steel cable cores 320, ensuring the accuracy and consistency of steering force transmission; and third, to reduce the frictional resistance and vibration of the steel cable cores 320 during movement, improving the smoothness of steering operation.

[0053] In a preferred embodiment, the frame 100 further includes a cargo-carrying section; the cargo-carrying section is located below the connecting section and includes a C-shaped frame and a U-shaped crossbeam; the closed end of the frame is fixedly connected to the support section, and the open end is connected to the connecting section through connecting rods; the crossbeams include multiple crossbeams, which are evenly arranged along the opening direction of the frame and fixedly connected to the frame at both ends.

[0054] In this embodiment, the frame 100 further integrates a dedicated cargo-carrying section; the main function of this cargo-carrying section is to provide a stable, low-center-of-gravity load-bearing platform for the vehicle; its entire structure is located in the space below the frame connection section, making full use of the unused area below the front of the vehicle.

[0055] In this embodiment, the core of the load-bearing part is a C-shaped frame. The frame is formed by bending a metal tube or profile, and its shape is similar to a forward-opening "C". The closed end of the frame is rigidly connected to the support part at the rear of the frame 100 by welding, bolting, or integral molding. The open end of the frame is connected to the connecting part of the frame 100 by an inclined or vertical connecting rod. In this way, the C-shaped frame, the two connecting rods, and the existing support and connecting parts of the frame together form a stable triangular or trapezoidal spatial structure that can effectively bear the load from above and in front.

[0056] In this embodiment, in order to convert the area of ​​the C-shaped frame into a practical load-bearing surface, multiple crossbeams are evenly arranged at its bottom; the basic shape of each crossbeam is U-shaped; the two ends of these crossbeams are fixedly connected to the longitudinal bars on the left and right sides of the frame respectively; through the parallel arrangement of multiple crossbeams, they together form a load-bearing plane similar to a "grid" in the bottom area of ​​the frame.

[0057] In a preferred embodiment, a cross brace is further provided between the two connecting rods; the cross brace includes a plurality of cross braces, which are parallel to each other and evenly arranged along the extension direction of the connecting rods, for improving the strength of the frame 100 and isolating the front wheel 140 from the cargo section.

[0058] In this embodiment, multiple cross braces are evenly arranged parallel to each other between the two connecting rods along their extension direction. These cross braces can be simple straight rods or metal parts with a certain cross-sectional shape. The left and right ends of each cross brace are reliably fixed to the corresponding left and right connecting rods by welding, riveting or bolting, thereby connecting the two independent connecting rods into a rigid frame structure.

[0059] The addition of this set of parallel cross braces brings multiple beneficial effects: Significantly improves the local and overall strength and rigidity of the frame: By interlocking the two main longitudinal links laterally in a multi-point connection manner, the lateral bending, torsion or relative displacement that may occur when the links are under stress is effectively constrained, which greatly improves the overall rigidity of the cargo section and even the front structure of the frame; this is especially beneficial for bearing heavy loads from the cargo section and resisting complex impacts from the road surface during driving.

[0060] Forming an effective functional isolation zone: These parallel cross braces form a spaced "fence" or "barrier" in the area behind the front wheels 140 of the vehicle; this structure can physically isolate the rotation area of ​​the front wheels from the cargo space located behind and above them; effectively preventing items or fixing ropes on the cargo space from accidentally coming loose and getting caught in the front wheels, thus improving safety.

[0061] Offering potential additional functionalities: The bars themselves or the grid-like structure they form can also be used to assist in securing goods or as a base for installing other small accessories, increasing ease of use.

[0062] In a preferred embodiment, the support portion is further provided with a seat 160; the seat 160 is fixedly installed on the support portion and located above the rear wheel 110.

[0063] In this embodiment, the seat 160 is specifically fixedly installed on the upper surface of the support part of the frame 100, and its installation position is directly above or slightly forward of the rear wheel 110 in the longitudinal direction of the vehicle. This layout makes full use of the structural strength of the support part, so that the load of the seat 160 can be directly and efficiently transferred to the entire frame and rear suspension system through the support part.

[0064] In terms of connection method, the seat 160 and the support are usually rigidly connected to ensure stability.

[0065] Specifically, one or more upwardly extending mounting brackets or mounting plates may be welded or bolted to the upper surface of the support; the bottom frame of the seat 160 is then securely attached to these mounting points by bolts, clips or other fasteners; the mounting points are typically distributed in the front-rear direction of the seat 160 to balance the weight of the occupants and prevent the seat from tilting.

[0066] The seat 160 is directly fixed to the support that carries the rear wheel 110 and the rear suspension system, providing a direct path for the transmission of force. The weight of the occupants is directly applied to the support through the seat 160 and distributed and balanced through multiple support points such as the guide shaft 120 at the first mounting sleeve 201 of the spring plate 200, the hanger 131, and the rear wheel axle. This layout helps to maintain the stability of the vehicle's center of gravity and allows the occupants to move in coordination with the rear suspension system during driving, thus improving the riding experience.

[0067] In a preferred embodiment, the support portion is further provided with a battery; the battery is located between the connecting portion and the rear wheel 110 and is used to provide power to the whole vehicle; a protective cover is provided on the outside of the support portion corresponding to the battery.

[0068] In this embodiment, the support portion of the frame 100 is designed to integrate the vehicle's energy storage system.

[0069] Specifically, a battery for providing driving and auxiliary power to the vehicle is provided in the internal cavity of the support or in the space enclosed by its structural components.

[0070] In this embodiment, to provide sufficient physical and daily protection for the battery, a removable protective cover is provided on the outside of the frame support, directly opposite the battery mounting area. This protective cover is usually made of sheet metal or high-strength plastic, and its shape matches the outer contour of the support. It can be fixed to the mounting edge on the side of the support by screws, clips, or quick-release mechanisms.

[0071] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. The above descriptions are only preferred embodiments of this application. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of this invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of this application.

Claims

1. A novel rear suspension structure for a two-wheeled vehicle, characterized in that, include A frame (100) includes a support for mounting a rear wheel (110). The support is provided with a guide shaft (120) and a hanger shaft (130) that extend laterally and are parallel to each other. Spring plate (200), the number of spring plates (200) includes two, respectively located on both sides of the support part, one end of which is provided with a first mounting sleeve (201) corresponding to the guide shaft (120), and the other end of which is provided with a second mounting sleeve (202) corresponding to the rear wheel (110). The first mounting sleeve (201) is sleeved on the guide shaft (120) and forms a rotatable connection with the frame (100); A hanger (131) is provided on the hanger shaft (130) corresponding to the spring plate (200) for supporting and limiting the spring plate (200); The two second mounting sleeves (202) are connected by a wheel axle for mounting the rear wheel (110).

2. The novel two-wheeled vehicle rear suspension structure according to claim 1, characterized in that, The hanger (131) includes a mounting part connected to the hanger shaft (130) and a limiting part connected to the spring plate (200); The mounting part is sleeved on the hanger shaft (130) and can rotate relative to the hanger shaft (130); The limiting part is provided with a matching strip channel corresponding to the spring plate (200) for the spring plate (200) to pass through.

3. The novel two-wheeled vehicle rear suspension structure according to claim 1, characterized in that, The frame (100) also includes a connecting part for mounting the front wheel (140). The front wheel (140) is mounted on the end of the connecting part away from the support part via the front fork (141); The fork (141) is rotatably connected to the connecting part.

4. The novel two-wheeled vehicle rear suspension structure according to claim 3, characterized in that, The connecting part is annular and includes parallel extension rods and connecting bars located at both ends of the extension rods; The extension direction of the extension rod is parallel to the travel direction of the rear wheel (110); The connecting rod is arc-shaped, and its two ends are connected to the corresponding extension rods to form a closed structure.

5. The novel two-wheeled vehicle rear suspension structure according to claim 3, characterized in that, The connecting part is also provided with a handlebar (150). The handlebar (150) is located at the end of the connecting part away from the front fork (141) and is rotatably connected to the connecting part; The fork (141) is connected to the handlebars (150) via a steering assembly for synchronous rotation.

6. The novel two-wheeled vehicle rear suspension structure according to claim 5, characterized in that, The steering assembly includes a master steering wheel (300) fixedly mounted on the handlebars (150) and a slave steering wheel (310) fixedly mounted on the fork (141). The main steering wheel (300) and the secondary steering wheel (310) are connected by a steel cable core (320); The number of steel cable cores (320) includes two, located on both sides of the connecting part respectively; The connecting part is provided with corresponding steering sleeves (321) for each of the two steel cable cores (320), which are used to restrict the path of the steel cable cores (320) and for protection.

7. The novel two-wheeled vehicle rear suspension structure according to claim 3, characterized in that, The frame (100) also includes a cargo-carrying section; The loading section is located below the connecting section and includes a C-shaped frame and a U-shaped crossbeam; The closed end of the frame is fixedly connected to the support part, and the open end is connected to the connecting part through connecting rods. The number of crossbeams includes multiple beams, which are evenly arranged along the opening direction of the frame and fixedly connected to the frame at both ends.

8. The novel two-wheeled vehicle rear suspension structure according to claim 7, characterized in that, A cross brace is also provided between the two connecting rods; The number of cross braces includes multiple cross braces that are parallel to each other and evenly arranged along the extension direction of the connecting rod, used to improve the strength of the frame (100) and isolate the front wheel (140) from the cargo section.

9. The novel two-wheeled vehicle rear suspension structure according to claim 1, characterized in that, The support is also provided with a seat (160). The seat (160) is fixedly mounted on the support and is located above the rear wheel (110).

10. The novel two-wheeled vehicle rear suspension structure according to claim 1, characterized in that, The support section also contains a battery; The battery is located between the connecting part and the rear wheel (110) and is used to provide power to the whole vehicle; A protective cover is provided on the outer side of the support corresponding to the battery.

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