Reinforced rear bumper assembly of motorcycle

By setting a crash plate and a multi-level buffer structure on the motorcycle rear bumper, the problem of insufficient impact resistance of traditional motorcycle rear bumpers during collisions is solved, achieving better energy absorption and protection effects, and is suitable for a variety of motorcycle models.

CN223396293UActive Publication Date: 2025-09-30广州鑫冉五金制品有限公司
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Patent Information

Application Number
CN202422858871.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-22
Publication Date
2025-09-30
Estimated Expiration
2034-11-22

AI Technical Summary

Technical Problem

Traditional motorcycle rear bumpers have limited impact resistance and cushioning effects during collisions, are easily deformed or broken, and cannot effectively protect the rear of the motorcycle and the rider. The lack of sufficient cushioning layer leads to wear and additional damage.

Method used

A reinforced motorcycle rear bumper assembly is designed, which adopts an anti-collision plate and a multi-stage buffer structure, including a buffer spring, a compression spring, a buffer plate made of rubber material, and an impact plate. The multi-stage buffer absorbs and disperses the impact energy, and the anti-fall block provides friction to reduce the sliding distance.

Benefits of technology

It effectively absorbs and disperses impact energy, reduces damage to motorcycles and riders, improves impact resistance and safety, is suitable for different models of motorcycles, and avoids accidents caused by obstructing taillights.

✦ Generated by Eureka AI based on patent content.

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Abstract

The reinforced rear bumper assembly of the motorcycle comprises a fixing frame, a fixing rod is arranged on one side of the fixing frame, sleeves are symmetrically and fixedly connected to one side of the fixing rod, anti-falling rods are connected into the sleeves in a sliding mode, the ends, close to each other, of the two anti-falling rods are rotationally connected with a connecting rod, and the connecting rod is fixedly connected with the fixing frame. An anti-collision plate is rotatably connected between the ends, away from the anti-falling rods, of the two connecting rods, a compression spring is fixedly connected between the two anti-falling rods, and a guide telescopic rod penetrates through the interior of the compression spring. When a rear-end collision accident occurs, impact energy can be effectively absorbed and dispersed, and damage to a motorcycle and a rider is reduced. Particularly, the buffer spring, the compression spring, the buffer plate made of rubber materials and the impact plate have good shock absorption performance and can absorb part of impact potential energy and reduce impact strength.
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Description

Technical Field

[0001] The utility model relates to the technical field of motorcycle accessories, in particular to a reinforced rear bumper assembly for a motorcycle. Background Art

[0002] In the motorcycle industry, the rear bumper is a critical safety component, and its design and performance are directly related to rider safety. Traditional motorcycle rear bumpers typically utilize a single structure, such as a simple metal tube or plastic part. While these designs provide some protection, their impact resistance and cushioning effect in the event of a severe collision or fall are limited.

[0003] First, the material selection and structural design of traditional rear bumpers often cannot fully absorb the energy generated by the collision, resulting in the bumper being easily deformed or broken during the collision, and unable to effectively protect the rear of the motorcycle and the rider's legs.

[0004] Secondly, although some rear bumpers have increased lateral support, they lack sufficient buffer layer, so when the motorcycle falls, the direct contact between the bumper and the ground may cause serious wear or damage, and also cause additional harm to the rider. Utility Model Content

[0005] To address the shortcomings of the aforementioned background art, the present invention aims to provide a reinforced motorcycle rear bumper assembly. By incorporating a crash plate and a multi-stage buffer structure, this assembly effectively absorbs and disperses impact energy in the event of a rear-end collision, minimizing damage to the motorcycle and rider. In particular, the buffer spring, compression spring, and rubber-made buffer plate and impact plate exhibit excellent shock absorption properties, absorbing a portion of the potential impact energy and mitigating the impact force.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A reinforced rear bumper assembly for a motorcycle comprises a fixed frame, a fixed rod is provided on one side of the fixed frame, a sleeve is symmetrically fixedly connected to one side of the fixed rod, an anti-fall rod is slidably connected inside the sleeve, two anti-fall rods are rotatably connected to one end thereof which is close to each other, an anti-collision plate is rotatably connected between the two ends of the connecting rods which are away from the anti-fall rods, a compression spring is fixedly connected between the two anti-fall rods, a guide telescopic rod is passed through the interior of the compression spring, both ends of the guide telescopic rod are respectively fixedly connected to the two anti-fall rods, a limiting assembly is provided on the anti-fall rod, and the limiting assembly is located between the two sleeves.

[0008] The fixing frame is used to fix the rear bumper assembly on the motorcycle.

[0009] Further preferably, the limiting assembly includes a locking rod, the side of the locking rod close to the sleeve is an inclined surface, a cavity is opened inside the anti-fall rod, a locking hole is opened on the anti-fall rod, the locking rod passes through the locking hole, one end of the locking rod is located in the cavity, the locking rod is fixedly connected to the limiting plate at one end of the cavity, and a tension spring is sleeved on the outer surface of the locking rod and located between the limiting plate and the inner wall of the cavity.

[0010] Further preferably, adjustment rods are symmetrically provided at the bottom end of the anti-collision plate, an adjustment plate is sleeved between the two adjustment rods, two adjustment plates are provided, and fixing screws for adjusting the height of the adjustment plates are provided on the adjustment plates.

[0011] Further preferably, a protective tube is provided through the adjustment plate, the side of the adjustment plate away from the fixed rod is flush with one end of the protective tube, a buffer spring is provided inside the protective tube, a buffer rod is slidably connected inside the protective tube, one end of the buffer rod is fixedly connected to one end of the buffer spring, and the other end of the buffer rod is fixedly connected to the impact plate.

[0012] Further preferably, one end of the impact plate away from the buffer rod is fixedly connected to a buffer plate, and the buffer plate is made of rubber material.

[0013] Further preferably, one end of the anti-fall rod away from the guide telescopic rod is fixedly connected to an anti-fall block, and the anti-fall block is made of rubber material.

[0014] Beneficial effects of the utility model:

[0015] 1. By providing an anti-collision plate and a multi-stage buffer structure, the utility model can effectively absorb and disperse impact energy in the event of a rear-end collision, reducing damage to the motorcycle and rider. In particular, the buffer spring, compression spring, and rubber-made buffer plate and impact plate have excellent shock absorption properties, absorbing a portion of the impact potential energy and reducing the impact force. The anti-fall block is made of rubber material, which not only has good shock absorption properties but also has wear resistance. It can absorb the impact force when the motorcycle falls and provides greater friction when the motorcycle rubs against the ground, reducing the sliding distance and further protecting the rider's safety.

[0016] 2. The height of the adjustment plate of the utility model can be adjusted by fixing screws to ensure that the adjustment plate will not block the motorcycle taillights, avoiding unnecessary accidents caused by blocking the taillights. The adjustable design increases the flexibility and practicality of the device and is suitable for motorcycles of different models and configurations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the fixed frame structure in the utility model;

[0020] Figure 3 This is a cross-sectional view of the anti-fall rod structure in the utility model;

[0021] Figure 4 It is a cross-sectional view of the protective tube structure in the utility model.

[0022] In the figure: 1. Fixed frame; 2. Fixed rod; 3. Sleeve; 4. Anti-fall rod; 5. Connecting rod; 6. Anti-collision plate; 7. Compression spring; 8. Guide telescopic rod; 9. Limiting assembly; 10. Locking rod; 11. Cavity; 12. Locking hole; 13. Limiting plate; 14. Tension spring; 15. Adjusting rod; 16. Adjusting plate; 17. Fixing screw; 18. Protective tube; 19. Buffer spring; 20. Buffering rod; 21. Impact plate; 22. Buffering plate; 23. Anti-fall block. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] like Figure 1-4 As shown, a reinforced rear bumper assembly for motorcycle includes a fixed frame 1, a fixed rod 2 is provided on one side of the fixed frame 1, a sleeve 3 is symmetrically fixedly connected to one side of the fixed rod 2, an anti-drop rod 4 is slidably connected inside the sleeve 3, two anti-drop rods 4 are rotatably connected at one end close to each other with a connecting rod 5, an anti-collision plate 6 is rotatably connected between the ends of the two connecting rods 5 away from the anti-drop rod 4, a compression spring 7 is fixedly connected between the two anti-drop rods 4, a guide telescopic rod 8 is passed through the interior of the compression spring 7, and both ends of the guide telescopic rod 8 are fixedly connected to the two anti-drop rods 4 respectively, a limiting component 9 is provided on the anti-drop rod 4, and the limiting component 9 is located between the two sleeves 3.

[0026] Among them, the fixing frame 1 is used to fix the rear bumper assembly on the motorcycle; the fixing rod 2 is connected to the fixing frame 1 and serves as the main supporting structure of the rear bumper assembly. The anti-fall rod 4 can slide along the sleeve 3 when it is impacted.

[0027] In another embodiment, the limiting assembly 9 includes a locking rod 10, the side of the locking rod 10 close to the sleeve 3 is an inclined surface, a cavity 11 is opened inside the anti-fall rod 4, a locking hole 12 is opened on the anti-fall rod 4, the locking rod 10 passes through the locking hole 12, one end of the locking rod 10 is located in the cavity 11, and the locking rod 10 is fixedly connected to the limiting plate 13 at one end of the cavity 11, and a tension spring 14 is sleeved on the outer surface of the locking rod 10 and located between the limiting plate 13 and the inner wall of the cavity 11.

[0028] In another embodiment, an adjustment rod 15 is symmetrically provided at the bottom end of the anti-collision plate 6, an adjustment plate 16 is sleeved between the two adjustment rods 15, two adjustment plates 16 are provided, and a fixing screw 17 for adjusting the height of the adjustment plate 16 is provided on the adjustment plate 16.

[0029] In another embodiment, a protective tube 18 is provided through the adjustment plate 16, and the side of the adjustment plate 16 away from the fixed rod 2 is flush with one end of the protective tube 18. A buffer spring 19 is provided inside the protective tube 18, and a buffer rod 20 is slidably connected to the inside of the protective tube 18. One end of the buffer rod 20 is fixedly connected to one end of the buffer spring 19, and the other end of the buffer rod 20 is fixedly connected to the impact plate 21.

[0030] In another embodiment, the end of the impact plate 21 away from the buffer rod 20 is fixedly connected to a buffer plate 22, and the buffer plate 22 is made of rubber material. The buffer plate 22 is made of rubber material and has good shock absorption performance.

[0031] In another embodiment, the anti-fall block 23 is fixedly connected to the end of the anti-fall rod 4 away from the guide telescopic rod 8, and the anti-fall block 23 is made of rubber material. The anti-fall block 23 is made of rubber material, which has good shock absorption and wear resistance.

[0032] Working principle:

[0033] To use this device, first install the fixing frame 1 on the rear of the motorcycle and secure it with bolts or other fastening devices. Then, adjust the height of the adjustment plate 16 as needed and fix the position of the adjustment plate 16 with the fixing screws 17 to ensure that the adjustment plate 16 does not block the motorcycle's taillights, thereby avoiding unnecessary accidents caused by the obstruction of the indicator taillights.

[0034] When a rear-end collision occurs, the first thing that will hit is the buffer plate 22 and the impact plate 21. Since the buffer plate 22 is made of rubber material, it has good shock absorption performance and can absorb part of the impact potential energy. Then the force is transmitted to the buffer rod 20 and then squeezes the buffer spring 19. The buffer spring 19 absorbs part of the impact potential energy, and the remaining energy continues to be transmitted, driving the adjustment plate 16, the adjustment rod 15 and the anti-collision plate 6 to move toward the rear of the motorcycle, thereby increasing the angle between the two connecting rods 5, and then pushing the two anti-fall rods 4 away from each other, and stretching the compression spring 7. The tension spring 14 absorbs part of the impact potential energy. As the two anti-fall bars 4 move away from each other, a certain gap is created between the motorcycle and the ground to avoid pressing the rider's legs and causing leg injuries. The width between the ends that move away from each other is greater than the width of the motorcycle. After the motorcycle falls over, it will come into contact with the ground. At this time, the locking rod 10 passes through the sleeve 3 to the other side of the sleeve 3. Under the action of the tension spring 14, the locking rod 10 is reset, thereby limiting the position of the anti-fall bar 4 and preventing it from being reset. The anti-fall block 23 can absorb the impact force after the motorcycle falls, and provide greater friction when the motorcycle rubs against the ground, thereby reducing the sliding distance.

[0035] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0036] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A motorcycle reinforced rear bumper assembly, characterized in that: The invention comprises a fixed frame (1), a fixed rod (2) is provided on one side of the fixed frame (1), a sleeve (3) is symmetrically fixedly connected to one side of the fixed rod (2), an anti-fall rod (4) is slidably connected inside the sleeve (3), a connecting rod (5) is rotatably connected to one end of the two anti-fall rods (4) close to each other, an anti-collision plate (6) is rotatably connected between the ends of the two connecting rods (5) away from the anti-fall rods (4), the anti-collision plate (6) is slidably connected to the fixed frame (1), a compression spring (7) is fixedly connected between the two anti-fall rods (4), a guide telescopic rod (8) is passed through the interior of the compression spring (7), the two ends of the guide telescopic rod (8) are respectively fixedly connected to the two anti-fall rods (4), a limiting component (9) is provided on the anti-fall rod (4), and the limiting component (9) is located between the two sleeves (3).

2. The motorcycle reinforced rear bumper assembly according to claim 1, characterized in that: The limiting assembly (9) includes a locking rod (10), the side of the locking rod (10) close to the sleeve (3) is an inclined surface, a cavity (11) is provided inside the anti-fall rod (4), a locking hole (12) is provided on the anti-fall rod (4), the locking rod (10) passes through the locking hole (12), one end of the locking rod (10) is located in the cavity (11), and the end of the locking rod (10) located in the cavity (11) is fixedly connected to the limiting plate (13), and a tension spring (14) is sleeved on the outer surface of the locking rod (10) and located between the limiting plate (13) and the inner wall of the cavity (11).

3. The motorcycle reinforced rear bumper assembly according to claim 2, characterized in that: The bottom end of the anti-collision plate (6) is symmetrically provided with an adjustment rod (15), an adjustment plate (16) is sleeved between the two adjustment rods (15), two adjustment plates (16) are provided, and a fixing screw (17) for adjusting the height of the adjustment plate (16) is provided on the adjustment plate (16).

4. The motorcycle reinforced rear bumper assembly according to claim 3, characterized in that: A protective tube (18) is provided through the adjustment plate (16); a side of the adjustment plate (16) away from the fixed rod (2) is flush with one end of the protective tube (18); a buffer spring (19) is provided inside the protective tube (18); a buffer rod (20) is slidably connected inside the protective tube (18); one end of the buffer rod (20) is fixedly connected to one end of the buffer spring (19); and the other end of the buffer rod (20) is fixedly connected to an impact plate (21).

5. The motorcycle reinforced rear bumper assembly according to claim 4, characterized in that: One end of the impact plate (21) away from the buffer rod (20) is fixedly connected to a buffer plate (22), and the buffer plate (22) is made of rubber material.

6. The motorcycle reinforced rear bumper assembly according to claim 5, characterized in that: One end of the anti-fall rod (4) away from the guide telescopic rod (8) is fixedly connected to an anti-fall block (23), and the anti-fall block (23) is made of rubber material.