A motorcycle frame reinforcing structure

CN224690334UActive Publication Date: 2026-08-28ZHEJIANG KAITONG IMPORT & EXPORT CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202522266081.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-08-28
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

[0006]本实用新型的目的在于提供一种摩托车车架加固结构,以解决上述背景技术提出车架强度较低且没有下支撑架和没有减震效果的问题

Benefits of technology

[0021] (1) The stem tube is the core part of the frame, used to connect the handlebars and the frame. The upper frame rod is used to provide lateral support for the frame. The front support bracket provides a connection for the lower frame rod, enhancing structural stability. The reinforcing rib increases the structural strength between the upper frame rod, the front support bracket and the stem tube, preventing deformation. The tail frame connecting rod connects the tail frame, increasing the support area of ​​the tail frame, so that the tail frame can better support heavy objects. The first reinforcing rod increases the structural strength between the upper frame rod and the lower frame rod, improving the overall rigidity of the frame assembly. The crossbar and connecting rod increase the overall structural rigidity between the frame assemblies. The second reinforcing rod increases the support rigidity of the tail frame connecting rod. The X-shaped cross of the support tube increases the strength of the overall connection structure between the frame assembly and the tail frame assembly, providing additional stability and distributing the load. The two reinforcing rods effectively distribute the load, reduce local stress concentration, form a stable support structure, and improve the overall bending and torsional resistance of the frame.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224690334U_ABST
    Figure CN224690334U_ABST
Patent Text Reader

Abstract

The utility model provides a motorcycle frame reinforcing structure belongs to frame reinforcing technical field, including tap vertical tube, the one end of tap vertical tube is connected with frame assembly, the back of frame assembly is connected with tailstock subassembly, frame assembly includes the one end symmetry of tap vertical tube and is connected with upper frame rod, the bottom end of tap vertical tube is connected with front support support in upper frame rod, the top between upper frame rod and the bottom end of upper frame rod and the top between front support support are all provided with reinforcing rib, the both sides symmetry of front support support near bottom end is connected with lower frame rod, the tail of lower frame rod is connected with support cross bar, the top of support cross bar of the tail of upper frame rod is connected, the utility model discloses beneficial effect: tap vertical tube is the core part of frame, is used for connecting handlebar and frame, upper frame rod is used for providing the lateral support of frame, and front support support provides the connection for lower frame rod, and reinforcing rib increases the structural strength between upper frame rod, front support support and tap vertical tube, prevents deformation.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame reinforcement technology, and more specifically, to a motorcycle frame reinforcement structure. Background Technology

[0002] The frame is one of the most critical components of a motorcycle. It is the skeleton of the motorcycle, bearing the weight of the rider, engine assembly, and body parts. It also withstands various forces and torques transmitted to the frame by other components during motorcycle operation. Currently, most motorcycle frames with undersuspension on the market use two hydraulic mechanisms to dampen the rear wheel, which cannot protect the motorcycle frame, making the frame prone to damage and deformation. Therefore, it is necessary to clamp and reinforce the frame to enhance its resistance to bending and torsion, thereby improving overall stability and safety.

[0003] Among them, the high-strength motorcycle frame disclosed in application number CN202421932423.2 is an increasingly mature technology. The frame body is provided with a front suspension plate and a rear suspension plate for connecting to the engine. The front suspension plate includes a hollow plate body with reinforcing components inside, which can improve the strength of the front suspension plate. This can prevent the front suspension plate from deforming or breaking during long-term use, thereby improving the strength of the motorcycle frame.

[0004] Based on this, we agree with the advantages of the aforementioned products, but the following drawbacks still exist:

[0005] This type of motorcycle frame uses a single main beam structure, which can support the entire frame, but has low strength and no lower support frame, resulting in poor support and positioning of the engine, unstable engine output, and large vibration. Moreover, the frame does not have a shock absorption effect. Utility Model Content

[0006] The purpose of this utility model is to provide a motorcycle frame reinforcement structure to solve the problems mentioned in the background art, such as low frame strength, lack of lower support frame, and lack of shock absorption effect.

[0007] This utility model embodiment provides a motorcycle frame reinforcement structure, including a handlebar stem tube, one end of which is connected to a frame assembly, and the back of the frame assembly is connected to a tail rack assembly.

[0008] The frame assembly includes an upper frame rod symmetrically connected to one end of a headstock riser. A front support bracket is connected to the bottom end of the headstock riser at the upper frame rod. Reinforcing ribs are provided between the top ends of the upper frame rods and between the bottom end of the upper frame rod and the top end of the front support bracket. Lower frame rods are symmetrically connected to both sides of the front support bracket near its bottom end. A support crossbar is connected to the tail end of the lower frame rod. The top end of the support crossbar is connected to the tail end of the upper frame rod. A U-shaped gasoline chamber is formed between the upper frame rods and the lower frame rods. A gasoline mounting plate is connected to the top end of the lower frame rods.

[0009] In this embodiment, the stem tube is the core part of the frame, used to connect the handlebars and the frame. The upper frame rod is used to provide lateral support for the frame. The front support bracket provides a connection for the lower frame rod. The reinforcing ribs increase the structural strength between the upper frame rod, the front support bracket and the stem tube. The fuel chamber is used to install the fuel tank, and the fuel mounting plate provides a mounting position for the fuel tank.

[0010] In one embodiment of this utility model, the tail frame assembly includes a symmetrical tail frame connecting rod connected to the back of the upper frame rod, one end of the tail frame connecting rod is connected to the tail frame, the tail frame is made of high-strength steel pipe bent into a U-shaped structure, and a symmetrical caster frame is provided on the back of the supporting crossbar, and a swivel is connected to the back of the caster frame.

[0011] In this design, the tail frame is connected by a tail frame connecting rod, which increases the support area of ​​the tail frame. The caster frame supports the stability of the motorcycle during movement, and the swivel drum facilitates the installation of the rear wheel.

[0012] In one embodiment of this utility model, the bottom middle of the upper frame rod is inclinedly connected to the top of the lower frame rod via a first reinforcing rod. The bottom end of the tail frame connecting rod is inclinedly provided with a second reinforcing rod that connects to the back of the upper frame rod. A buffer rod is connected to the back of the second reinforcing rod. One end of the buffer rod is connected to the bottom of the tail frame. A round rod is connected between the buffer rods.

[0013] In this design, the first reinforcing rod increases the structural strength between the upper frame rod and the lower frame rod, the second reinforcing rod increases the support stiffness of the tail frame connecting rod, the two reinforcing rods effectively distribute the load, and improve the overall bending and torsional resistance of the frame. The buffer rod plays a buffering role, and the round rod provides additional support for the buffer rod.

[0014] In one embodiment of this utility model, mounting supports are provided between the caster frames, and multiple hydraulic telescopic rods are inclinedly provided at the top of each mounting support. The telescopic ends of each telescopic rod are connected to a top seat, and the top seat is respectively connected to a second reinforcing rod and the middle of a round rod. A set of telescopic rods is connected to the middle of the second reinforcing rod, and springs are sleeved on the surface of each telescopic end.

[0015] In this design, when a heavy object is released from the tailstock, the tailstock is pressed downward by the pressure of the heavy object. The round rod and the second reinforcing rod compress the telescopic end into the telescopic rod through the top seat, converting the kinetic energy of the top seat at the telescopic end into mechanical energy for linear displacement. The spring stores elastic potential energy, which is released when the load, displacement, or rebound is required, providing buffering and restoring force to achieve the effect of shock absorption and cushioning.

[0016] In one embodiment of this utility model, a crossbar is provided between the first reinforcing rods and is connected to the front support bracket at one end via a connecting rod. The top center of the second reinforcing rod is connected to the back of the upper frame rod in an X-shape via a support tube. Both ends of the cross of the support tube are fixedly installed with shock-absorbing connectors.

[0017] In this design, the overall structural rigidity between the frame components is increased by crossbars and connecting struts, the X-shaped crossbars of the support tubes increase the strength of the overall connection structure between the frame components and the tail frame components, and the shock-absorbing connectors facilitate the installation of shock-absorbing components.

[0018] In one embodiment of this utility model, multiple reinforcing plates are evenly distributed between the tail frame connecting rods, multiple arc blocks are evenly distributed on both sides of the inner side wall of the tail frame, and reinforcing plates are connected between the arc blocks. All rods between the frame assembly and the tail frame assembly are welded together.

[0019] In this solution, reinforcing plates and strengthening plates are used to increase the support of the tail frame connecting rod and the tail frame, providing additional support. Arc blocks are used for connection and support, helping to distribute the load. Welded connections ensure the strength and stability of the overall structure and ensure a tight connection between the frame and the tail frame.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] (1) The stem tube is the core part of the frame, used to connect the handlebars and the frame. The upper frame rod is used to provide lateral support for the frame. The front support bracket provides a connection for the lower frame rod, enhancing structural stability. The reinforcing rib increases the structural strength between the upper frame rod, the front support bracket and the stem tube, preventing deformation. The tail frame connecting rod connects the tail frame, increasing the support area of ​​the tail frame, so that the tail frame can better support heavy objects. The first reinforcing rod increases the structural strength between the upper frame rod and the lower frame rod, improving the overall rigidity of the frame assembly. The crossbar and connecting rod increase the overall structural rigidity between the frame assemblies. The second reinforcing rod increases the support rigidity of the tail frame connecting rod. The X-shaped cross of the support tube increases the strength of the overall connection structure between the frame assembly and the tail frame assembly, providing additional stability and distributing the load. The two reinforcing rods effectively distribute the load, reduce local stress concentration, form a stable support structure, and improve the overall bending and torsional resistance of the frame.

[0022] (2) When a heavy object is released from the tail frame, the tail frame is subjected to the pressure of the heavy object, which drives the buffer rod to press down. The round rod and the second reinforcing rod between the buffer rods compress the telescopic end into the telescopic rod through the top seat, converting the kinetic energy of the top seat of the telescopic end into mechanical energy linear displacement. The spring will store elastic potential energy, which will be released when the load, displacement or rebound is needed, providing buffering and restoring force to achieve the effect of shock absorption and buffering. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the vehicle frame of this utility model;

[0025] Figure 2 This is a structural schematic diagram of the frame assembly of this utility model;

[0026] Figure 3 This is a structural schematic diagram of the tailstock assembly of this utility model.

[0027] In the diagram: 100, faucet riser;

[0028] 200. Frame assembly; 210. Upper frame rod; 211. Front support bracket; 212. Reinforcing rib; 213. Lower frame rod; 214. Support crossbar; 215. Gasoline mounting plate; 216. First reinforcing rod; 217. Crossbar; 218. Connecting support rod;

[0029] 300. Tail frame assembly; 310. Tail frame connecting rod; 311. Tail frame; 312. Caster frame; 313. Rotary drum; 314. Second reinforcing rod; 315. Buffer rod; 316. Round rod; 317. Mounting support rod; 318. Telescopic rod; 319. Top seat; 320. Spring; 321. Support tube; 322. Shock-absorbing connector; 323. Reinforcing plate; 324. Arc block; 325. Reinforcing plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example

[0032] Please see Figure 1-3This utility model provides a motorcycle frame reinforcement structure, including a handlebar stem 100, one end of which is connected to a frame assembly 200, and the back of the frame assembly 200 is connected to a tail rack assembly 300.

[0033] Please refer to the details. Figure 2 The frame assembly 200 includes a headstock riser 100 with one end symmetrically connected to an upper frame rod 210. The headstock riser 100 is connected to a front support bracket 211 at the bottom end of the upper frame rod 210. Reinforcing ribs 212 are provided between the top and bottom ends of the upper frame rods 210 and between the top end of the front support bracket 211. Lower frame rods 213 are symmetrically connected to both sides of the front support bracket 211 near the bottom end. The tail end of the lower frame rod 213 is connected to a support crossbar 214. The tail end of the upper frame rod 210 is connected to the top end of the support crossbar 214. A U-shaped gasoline cavity is formed between the upper frame rod 210 and the lower frame rod 213. A gasoline mounting plate 215 is connected to the top end of the lower frame rod 213.

[0034] In one specific embodiment, please refer to Figure 2 The stem tube 100 is the core part of the frame, used to connect the handlebars and the frame. The upper frame rod 210 provides lateral support for the frame. The front support bracket 211 connects to the lower frame rod 213, enhancing structural stability. The reinforcing rib 212 increases the structural strength between the upper frame rod 210, the front support bracket 211, and the stem tube 100, preventing deformation. The stem tube 100, the upper frame rod 210, the front support bracket 211, the lower frame rod 213, and the support crossbar 214 form a U-shaped gasoline chamber for mounting the gasoline tank. The gasoline mounting plate 215 provides the mounting position for the gasoline tank.

[0035] Please see Figure 3 The tail frame assembly 300 includes a symmetrical tail frame connecting rod 310 connected to the back of the upper frame rod 210. One end of the tail frame connecting rod 310 is connected to the tail frame 311. The tail frame 311 is made of high-strength steel pipe bent into a U-shaped structure. A symmetrical caster frame 312 is provided on the back of the supporting crossbar 214. A swivel drum 313 is connected to the back of the caster frame 312.

[0036] In one specific embodiment, please refer to Figure 3 The tail frame 311 is connected by the tail frame connecting rod 310, which increases the support area of ​​the tail frame 311, enabling the tail frame 311 to better support heavy objects. The high-strength steel pipe tail frame 311 provides stable support and load capacity. The caster frame 312 supports the stability of the motorcycle when it moves. The swivel drum 313 facilitates the installation of the rear wheel.

[0037] Please see Figure 2 and Figure 3The bottom middle of the upper frame rod 210 is inclinedly connected to the top of the lower frame rod 213 via the first reinforcing rod 216. The bottom of the tail frame connecting rod 310 is inclinedly provided with a second reinforcing rod 314 connected to the back of the upper frame rod 210. The back of the second reinforcing rod 314 is connected to a buffer rod 315. One end of the buffer rod 315 is connected to the bottom of the tail frame 311. A round rod 316 is connected between the buffer rods 315.

[0038] In one specific embodiment, please refer to Figure 2 and Figure 3 The first reinforcing rod 216 increases the structural strength between the upper frame rod 210 and the lower frame rod 213, improving the overall rigidity of the frame assembly 200. The second reinforcing rod 314 increases the support rigidity of the tail frame connecting rod 310. The two reinforcing rods effectively distribute the load, reduce local stress concentration, form a stable support structure, and improve the overall bending and torsional resistance of the frame. The buffer rod 315 plays a buffering role, reducing the direct impact of vibration and impact on the frame. The round rod 316 provides additional support for the buffer rod 315, ensuring the stability of the structure under stress.

[0039] Please see Figure 3 A mounting support rod 317 is provided between the caster brackets 312. Multiple hydraulic telescopic rods 318 are inclinedly provided at the top of the mounting support rods 317. The telescopic ends of the telescopic rods 318 are connected to the top seat 319. The top seat 319 is connected to the middle of the second reinforcing rod 314 and the round rod 316 respectively. A set of telescopic rods 318 is connected to the middle of the second reinforcing rod 314. The surface of the telescopic ends is fitted with springs 320.

[0040] In one specific embodiment, please refer to Figure 3 When a heavy object is released from the tailstock 311, the tailstock 311 is subjected to the pressure of the heavy object, which drives the buffer rod 315 to press downward. The round rod 316 and the second reinforcing rod 314 between the buffer rods 315 compress the telescopic end into the telescopic rod 318 through the top seat 319, converting the kinetic energy of the top seat 319 at the telescopic end into mechanical energy for linear displacement. The spring 320 stores elastic potential energy, which is released when the load, displacement, or rebound is required, providing buffering and restoring force to achieve the effect of shock absorption and cushioning.

[0041] Please see Figure 2 and Figure 3 A crossbar 217 is provided between the first reinforcing rods 216 and is connected to the front support bracket 211 at one end via a connecting rod 218. The top center of the second reinforcing rod 314 is connected to the back of the upper frame rod 210 in an X-shape via a support tube 321. Both ends of the cross of the support tube 321 are fixedly installed with shock-absorbing connectors 322.

[0042] In one specific embodiment, please refer to Figure 2 and Figure 3 The crossbar 217 and connecting support rod 218 increase the overall structural rigidity between the frame assembly 200. The X-shaped cross support tube 321 increases the strength of the overall connection structure between the frame assembly 200 and the tail rack assembly 300, provides additional stability, and distributes the load. The shock absorber connector 322 facilitates the installation of shock absorbers.

[0043] Please see Figure 3 Multiple reinforcing plates 323 are evenly distributed between the tail frame connecting rods 310. Multiple arc blocks 324 are evenly distributed on both sides of the inner side wall of the tail frame 311. Reinforcing plates 325 are connected between the arc blocks 324. All rods between the frame assembly 200 and the tail frame assembly 300 are welded.

[0044] In one specific embodiment, please refer to Figure 3 The reinforcing plate 323 and the reinforcing plate 325 provide additional support for the tail frame connecting rod 310 and tail frame 311. The arc block 324 is used for connection and support, helping to distribute the load. The welded connection ensures the strength and stability of the overall structure, and ensures a tight fit between the frame and the tail frame 311, preventing loosening or breakage during use.

[0045] The present invention provides a motorcycle frame reinforcement structure, the specific usage of which is as follows:

[0046] The stem tube 100 is the core component of the frame, connecting the handlebars and the frame. The upper frame rod 210 provides lateral support for the frame. The front support bracket 211 connects to the lower frame rod 213, enhancing structural stability. Reinforcing ribs 212 increase the structural strength between the upper frame rod 210, the front support bracket 211, and the stem tube 100, preventing deformation. The tail rack connecting rod 310 connects to the tail rack 311, increasing its support area and allowing it to better support heavy loads. The first reinforcing rod 216 increases the structural strength between the upper frame rod 210 and the lower frame rod 213, improving the overall rigidity of the frame assembly 200. The crossbar 217 and connecting rod 218 increase the overall structural rigidity of the frame assembly 200. The second reinforcing rod 314 increases the support rigidity of the tail rack connecting rod 310. The X-shaped crossbars 321 increase the strength of the overall connection structure between the frame assembly 200 and the tail rack assembly 300, providing additional... The two reinforcing rods effectively distribute the load, reduce local stress concentration, and form a stable support structure, improving the overall bending and torsional resistance of the frame. The buffer rod 315 acts as a buffer, reducing the direct impact of vibration and impact on the frame. When a heavy object is released from the tail frame 311, the tail frame 311 is subjected to the pressure of the heavy object, which drives the buffer rod 315 downward. The round rod 316 between the buffer rods 315 and the second reinforcing rod 314 compress the telescopic end into the telescopic rod 318 through the top seat 319, converting the kinetic energy of the top seat 319 at the telescopic end into mechanical energy linear displacement. The spring 320 stores elastic potential energy and releases it when the load, displacement, or rebound is needed, providing buffering and restoring force to achieve the effect of shock absorption. The reinforcing plate 323 and the reinforcing plate 325 increase the support of the tail frame connecting rod 310 and the tail frame 311, providing additional support. The arc block 324 is used for connection and support, helping to distribute the load.

[0047] The contents not described in detail in this description are existing technologies known to those skilled in the art. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A motorcycle frame reinforcement structure, characterized in that, include: A headstock riser (100) is provided, one end of which is connected to a frame assembly (200), and the back of the frame assembly (200) is connected to a tailstock assembly (300). The frame assembly (200) includes a headrest tube (100) with one end symmetrically connected to an upper frame rod (210). The headrest tube (100) at the bottom end of the upper frame rod (210) is connected to a front support bracket (211). Reinforcing ribs (212) are provided between the top ends of the upper frame rods (210) and between the bottom end of the upper frame rods (210) and the top end of the front support bracket (211). Lower frame rods (213) are symmetrically connected to both sides of the front support bracket (211) near the bottom end. The tail end of the lower frame rod (213) is connected to a support crossbar (214). The tail end of the upper frame rod (210) is connected to the top end of the support crossbar (214). A U-shaped gasoline cavity is formed between the upper frame rod (210) and the lower frame rod (213). A gasoline mounting plate (215) is connected to the top end of the lower frame rods (213).

2. The frame reinforcement structure according to claim 1, characterized in that: The tail frame assembly (300) includes a symmetrical tail frame connecting rod (310) connected to the back of the upper frame rod (210). One end of the tail frame connecting rod (310) is connected to the tail frame (311). The tail frame (311) is made of high-strength steel pipe bent into a U-shaped structure. A symmetrical caster frame (312) is provided on the back of the support crossbar (214). A swivel drum (313) is connected to the back of the caster frame (312).

3. The frame reinforcement structure according to claim 2, characterized in that: The bottom middle of the upper frame rod (210) is inclinedly connected to the top of the lower frame rod (213) through the first reinforcing rod (216). The bottom end of the tail frame connecting rod (310) is inclinedly provided with a second reinforcing rod (314) which is connected to the back of the upper frame rod (210). The back of the second reinforcing rod (314) is connected to a buffer rod (315). One end of the buffer rod (315) is connected to the bottom of the tail frame (311). A round rod (316) is connected between the buffer rods (315).

4. The frame reinforcement structure according to claim 2, characterized in that: A mounting support rod (317) is provided between the caster frames (312). The top of each mounting support rod (317) is provided with multiple hydraulic telescopic rods (318) at an angle. The telescopic ends of each telescopic rod (318) are connected to a top seat (319). The top seat (319) is connected to the middle of a second reinforcing rod (314) and a round rod (316). A set of telescopic rods (318) is connected to the middle of the second reinforcing rod (314). The surface of each telescopic end is fitted with a spring (320).

5. The frame reinforcement structure according to claim 3, characterized in that: A crossbar (217) is provided between the first reinforcing rods (216) and is connected to the front support bracket (211) at one end via a connecting rod (218). The top center of the second reinforcing rod (314) is connected to the back of the upper frame rod (210) in an X-shape via a support tube (321). Both ends of the support tube (321) are fixedly installed with shock-absorbing connectors (322).

6. The frame reinforcement structure according to claim 2, characterized in that: Multiple reinforcing plates (323) are evenly distributed between the tail frame connecting rods (310). Multiple arc blocks (324) are evenly distributed on both sides of the inner side wall of the tail frame (311). Reinforcing plates (325) are connected between the arc blocks (324). All rods between the frame assembly (200) and the tail frame assembly (300) are welded together.

Citation Information

Patent Citations

  • High-strength motorcycle frame

    CN222793725U