Floating rear suspension kart chassis structure

The design of the floating rear suspension and the tilted battery compartment solves the problem of poor shock absorption in the go-kart chassis, improves the comfort of the vehicle and the stability of the battery, and optimizes the overall shape of the vehicle and the waterproof performance of the battery.

CN224409390UActive Publication Date: 2026-06-26JINYUN KAYO MOTOR MACHINERY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINYUN KAYO MOTOR MACHINERY
Filing Date
2025-07-22
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

The existing go-kart frame structure lacks shock absorption devices, resulting in poor comfort and sport performance when driving on uneven roads. At the same time, the stability and lifespan of the battery are affected by vibration.

Method used

It adopts a floating rear suspension structure, combined with shock absorbers and a tilted battery compartment design. Through the coordinated work of the rear suspension, shock absorbers and battery compartment, vibration is reduced from being transmitted to the frame and battery, thereby enhancing vehicle stability and battery life.

Benefits of technology

It improves the vehicle's comfort and handling performance under various road conditions, extends battery life, and optimizes the overall vehicle design and battery waterproofing.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224409390U_ABST
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Abstract

A floating rear suspension kart frame structure, including frame, the bottom tail end of frame is detachably rotatably connected with rear suspension, the rear suspension and frame are connected with shock absorber, the rear suspension and frame are supported under the initial state of shock absorber and make the tail end of rear suspension deflects a predetermined angle and sets up as inclined structure, the tail end of frame is connected with mounting plate above rear suspension, mounting plate is fixed with battery compartment for installing battery, and battery compartment is inclinedly arranged with low front and high back.The utility model discloses compact structure, through using floating rear suspension structure, effectively increases rear shock stroke, improves the comfort and motion performance of vehicle in the process of driving, and the battery compartment is inclinedly installed on the back of frame by using shock absorption and other soft connection mode, can better reduce the vibration of frame acting on battery, prolongs the service life of battery, and the compact and practical frame structure optimizes space arrangement, increases ceiling frame simultaneously, and strengthens the protection for driver.
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Description

Technical Field

[0001] This utility model relates to the field of transportation technology, and in particular to a go-kart, specifically a floating rear suspension go-kart frame structure. Background Technology

[0002] With the widespread development of tourism and entertainment projects, more and more people are enjoying go-karting. Besides driving skills, the most important aspect of this sport is the go-kart itself. With the rapid popularization of new energy electric vehicle technology, electric go-karts have also emerged and are rapidly gaining popularity. Compared to traditional engine-powered go-karts, electric go-karts are undoubtedly more environmentally friendly, offer more stable and powerful power output, and are easier and more convenient to replace energy. Specifically for electric go-karts, the frame is a crucial assembly component, housing the battery compartment, transmission system, braking system, control system, steering system, and seat. Therefore, its materials and structure must possess considerable strength and rigidity while remaining lightweight. Furthermore, some components are mounted on the frame in an exposed manner, thus requiring careful attention to appearance and design.

[0003] Currently, go-kart frames (including most electric go-karts) on the market are predominantly flatbed frames. These flatbed frames lack the structural space for additional shock absorbers. This frame structure is only suitable for smooth roads; on trails and other rough terrains, the lack of shock absorption results in poor comfort and handling. Furthermore, since electric go-karts require their own batteries, and the flatbed frame places the battery directly at the rear, vibrations are transmitted directly to the battery. This structure undoubtedly significantly impacts battery stability and lifespan. Utility Model Content

[0004] This invention aims to solve the problems existing in the prior art by providing a floating rear suspension go-kart frame structure, which solves the problems of poor shock absorption and unfavorable conditions for electrification in traditional go-karts, and meets the requirements of efficient shock absorption and electrification.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This floating rear suspension go-kart frame structure includes a frame, with a rear suspension detachably and rotatably connected to the bottom rear end of the frame. A shock absorber is connected between the rear suspension and the frame. Under the initial support of the shock absorber, the rear suspension rear end is tilted downwards at a predetermined angle to form an inclined structure. A mounting plate located above the rear suspension is connected to the rear end of the frame, and a battery compartment for installing the battery is fixed on the mounting plate. The battery compartment is tilted with the front lower and the rear higher. With this configuration, during vehicle operation, the rear suspension, shock absorber, battery compartment, and other components work together to ensure vehicle performance. When the vehicle encounters a raised road surface, the rear suspension receives an upward impact force and rotates upwards around the connection point with the frame. At this time, the shock absorber is compressed, converting part of the impact force into elastic potential energy, reducing the vibration transmitted to the frame. When the vehicle passes over a sunken road surface, the rear suspension rotates downwards under its own weight and the action of the shock absorber, and the shock absorber extends, also providing a cushioning effect. This floating operating method, combined with symmetrical shock absorbers, allows the vehicle to maintain good stability under various road conditions. The tilted design of the battery compartment and the coordination of the cushioning rubber are also ingenious. When the vehicle vibrates during driving, the cushioning rubber first absorbs some of the vibration energy, reducing the amplitude of vibration transmitted to the battery. At the same time, the tilted battery compartment creates a component of the battery's own weight along the tilt direction, which can, to some extent, offset the impact of vibration, further ensuring battery stability.

[0006] As a further improvement of this utility model, the shock absorbers are symmetrically arranged on both sides of the rear suspension. The shock absorbers are used to reduce the vibration impact on the entire vehicle body during driving, which helps to ensure vehicle stability.

[0007] As a further improvement of this utility model, a roof frame for protecting the driver is provided on the top of the frame, and the roof frame is connected to the frame in sections. The roof frame not only enhances the protection of the driver but also further optimizes the overall vehicle shape, and the segmented structure of the roof frame facilitates welding and installation.

[0008] As a further improvement of this utility model, the rear end of the mounting plate is tilted upwards, resulting in an inclined structure for the battery compartment after installation. A connecting rod connects the mounting plate and the vehicle frame, with one end of the connecting rod connected to the side of the mounting plate and the other end connected to the vehicle frame. This design, with the rear end of the mounting plate tilted upwards, causes the battery compartment to face downwards. This allows rainwater to fall freely onto the battery compartment during outdoor rainy weather, preventing water accumulation and ensuring the safety and reliability of the battery compartment. The connecting rod supports the tilted mounting plate, strengthening the connection and ensuring reliable connection between the mounting plate and the vehicle frame.

[0009] As a further improvement of this utility model, a shock-absorbing buffer is provided at the connection between the battery compartment and the mounting plate. The buffer can play a shock-absorbing role, effectively reducing the adverse effects of vehicle frame vibration on the battery compartment during movement, ensuring that the battery compartment is in a relatively stable operating state, and increasing the stability and reliability of the battery during movement.

[0010] The beneficial effects of this utility model are as follows: The structure of this utility model is reasonable and compact. By using a floating rear suspension structure, the rear shock absorber travel is effectively increased, improving the comfort and sport performance of the vehicle during driving. The battery compartment is installed at an angle on the back of the frame using soft connection methods such as shock absorption, which can better reduce the vibration of the frame acting on the battery, extend the battery's service life, and the angled installation of the battery compartment helps to reduce water accumulation in the battery compartment and enhance waterproof performance. The frame structure is compact and practical, optimizing the space layout. At the same time, the addition of a roof rack enhances the protection for the driver. The roof rack adopts a segmented design, which facilitates welding and installation, and optimizes the overall vehicle shape. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is the right view of the present invention.

[0013] Explanation of reference numerals in the attached diagram: 1. Frame; 2. Rear suspension; 3. Shock absorber; 4. Mounting plate; 5. Battery compartment; 6. Roof rack; 7. Connecting rod; 8. Cushion rubber. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings:

[0015] Referring to the attached drawings: This floating rear suspension go-kart frame structure in this embodiment includes a frame 1. A rear suspension 2 is detachably and rotatably connected to the bottom rear end of the frame 1. A shock absorber 3 connects the rear suspension 2 and the frame 1. Under the initial support of the shock absorber 3, the rear suspension 2's rear end is tilted downwards at a predetermined angle, forming an inclined structure. A mounting plate 4 located above the rear suspension 2 is connected to the rear end of the frame 1. A battery compartment 5 for installing the battery is fixed on the mounting plate 4. The battery compartment 5 is tilted, with the front lower than the rear. Preferably, the shock absorbers 3 are symmetrically arranged on the left and right sides of the rear suspension 2. The frame is made of high-strength alloy steel, which has high strength and rigidity, capable of withstanding various forces during vehicle operation, while being relatively lightweight, meeting the frame's lightweight requirements. The rear suspension is made of wear-resistant and tough steel to cope with frequent rotation and impacts. The main components of the shock absorber are made of high-quality spring steel and sealing materials. The spring steel ensures the elastic performance and service life of the shock absorber, while the good sealing materials prevent the leakage of damping oil and ensure the normal operation of the shock absorber.

[0016] The top of the frame 1 is equipped with a canopy frame 6 for protecting the driver. The canopy frame 6 is connected to the frame 1 in sections. The canopy frame is made of high-strength aluminum alloy, which ensures sufficient protective strength while reducing the overall weight. In addition, aluminum alloy has good corrosion resistance, which can extend the service life of the canopy frame.

[0017] The mounting plate 4 is tilted upwards at its rear end so that the battery compartment is tilted after installation. A connecting rod 7 connects the mounting plate 4 and the frame 1. One end of the connecting rod 7 is connected to the side of the mounting plate 4 and the other end is connected to the frame 1.

[0018] Preferably, a shock-absorbing buffer 8 is provided at the connection between the battery compartment 5 and the mounting plate 4. The buffer is made of aging-resistant and elastic rubber material, which can maintain a good shock absorption effect for a long time.

[0019] During use, the connection between the rear suspension and the frame should be checked regularly to ensure it is secure. If any looseness is found, the connection should be tightened immediately. The shock absorbers should have their oil level and seal checked regularly. If leaks or performance degradation are found, they should be replaced promptly. The battery compartment needs to be cleaned regularly to prevent debris buildup from affecting battery heat dissipation and operation. The cushioning rubber should be checked for aging or cracking; if any is found, it should be replaced immediately to ensure its shock absorption effect. All connections of the roof rack should also be checked regularly to ensure reliable connections. If deformation or damage is found, it should be repaired or replaced promptly to ensure driver safety.

[0020] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail are possible within the scope of the claims.

Claims

1. A floating rear suspension kart chassis structure comprising a chassis (1) characterised in that: The rear suspension (2) is detachably and rotatably connected to the bottom end of the frame (1). A shock absorber (3) is connected between the rear suspension (2) and the frame (1). Under the initial support of the shock absorber (3), the rear suspension (2) is tilted downward at a predetermined angle to form an inclined structure. The rear end of the frame (1) is connected to a mounting plate (4) located above the rear suspension (2). A battery compartment (5) for installing the battery is fixed on the mounting plate (4). The battery compartment (5) is tilted with the front lower and the rear higher.

2. The floating rear suspension kart frame structure according to claim 1, characterized in that: The shock absorbers (3) are symmetrically arranged on the left and right sides of the rear suspension (2).

3. The floating rear suspension go-kart frame structure according to claim 1, characterized in that: The top of the vehicle frame (1) is provided with a canopy frame (6) for protecting the driver, and the canopy frame (6) is connected to the vehicle frame (1) in sections.

4. The floating rear suspension go-kart frame structure according to claim 1, characterized in that: The mounting plate (4) is tilted upward at its tail end so that the battery compartment is tilted after installation. A connecting rod (7) is connected between the mounting plate (4) and the vehicle frame (1). One end of the connecting rod (7) is connected to the side of the mounting plate (4) and the other end is connected to the vehicle frame (1).

5. The floating rear suspension go-kart frame structure according to claim 1 or 4, characterized in that: The connection between the battery compartment (5) and the mounting plate (4) is provided with shock-absorbing cushioning rubber (8).