Rear shock mechanism for a motorcycle

Abstract

The application discloses a motorcycle rear damping mechanism, comprising: a wheel; a frame; a main rocker arm rotatably connected with the wheel and the frame; a sub rocker arm rotatably connected with the wheel and the frame; a short connecting rod first end rotatably connected with the frame; a bent connecting rod first end rotatably connected with the main rocker arm, and a second end rotatably connected with the middle part of the short connecting rod; the first section of the bent connecting rod is in an inclined shape, and the second section of the bent connecting rod is arranged in parallel with the main rocker arm; the main rocker arm, the bent connecting rod, the short connecting rod and the frame enclose an internal space; a shock absorber is arranged in the internal space, a first end of the shock absorber is rotatably connected with the first section of the bent connecting rod, and a second end of the shock absorber is rotatably connected with the second end of the short connecting rod, so that the shock absorber is arranged in parallel with the main rocker arm. The application solves the problem of interference between a traditional compression type shock absorber and a vehicle body arrangement, fully utilizes the space below the main rocker arm, improves the ornamental property of the whole vehicle in a moving process, and is favorable for the technical development and market promotion of electric motorcycles.

Description

Technical Field

[0001] This invention relates to the field of electric motorcycle technology, and more specifically to a rear shock absorber mechanism for motorcycles. Background Technology

[0002] With the gradual development of technology, electric motorcycles have become a widely used means of transportation in daily life. Typically, electric motorcycles require large battery packs and inverters to maintain the power performance of the electric system.

[0003] In the existing technology, the rear shock absorber of the rear wheel of an electric motorcycle is usually a compression shock absorber. The compression shock absorber is placed above the main rocker arm of the rear wheel of the motorcycle. There is a high possibility that the rear shock absorber will interfere with the large electrical components on the electric motorcycle in terms of spatial arrangement, thereby affecting the safety performance of the electric motorcycle. Summary of the Invention

[0004] The purpose of this invention is to provide a rear shock absorber mechanism for motorcycles. This mechanism solves the problem of interference between traditional compression shock absorbers and the motorcycle's chassis layout. By mounting the rear compression shock absorber horizontally below the main swingarm, it fully utilizes the space beneath the main swingarm, expanding the space available for key electrical components such as the motorcycle battery pack and inverter. This structure is simple and reliable, improves the visual appeal of the motorcycle during motion, avoids the high costs associated with custom-made tension shock absorbers, and is beneficial to the technological development and market promotion of electric motorcycles.

[0005] To achieve the above objectives, the present invention provides a motorcycle rear shock absorber mechanism, specifically comprising:

[0006] wheel;

[0007] Frame;

[0008] The main rocker arm has a first end that is rotatably connected to the wheel and a second end that is rotatably connected to the vehicle frame;

[0009] The secondary rocker arm has a first end rotatably connected to the wheel and a second end rotatably connected to the frame. It is used to directly transmit the reaction torque of the wheel hub driving torque generated by the wheel to the frame, so as to avoid the reaction torque acting directly on the main rocker arm and thus avoid the main rocker arm from rotating relative to the frame.

[0010] A short connecting rod, the first end of which is rotatably connected to the vehicle frame;

[0011] The bent connecting rod is bent, with its first end rotatably connected to the main rocker arm and its second end rotatably connected to the middle of the short connecting rod; and the first section of the bent connecting rod near its first end is inclined, and the second section of the bent connecting rod near its second end is arranged parallel to the main rocker arm.

[0012] The main rocker arm, the bent connecting rod, the short connecting rod, and the vehicle frame form an internal space;

[0013] A shock absorber is arranged in the internal space, and a first end of the shock absorber is rotationally connected to an inclined first section of the bent connecting rod, and a second end of the shock absorber is rotationally connected to a second end of the short connecting rod, so that the shock absorber is arranged parallel to the main rocker arm.

[0014] In one embodiment of the present application, the short connecting rod is arranged vertically.

[0015] In one embodiment of the present application, a bottom end of the short connecting rod is rotationally fixed to the vehicle frame through a fulcrum, and the short connecting rod can rotate around the fulcrum; and a top end of the short connecting rod is rotationally connected to the second end of the shock absorber through a cotter bolt.

[0016] In one embodiment of the present application, a first end of the bent connecting rod is rotationally connected to the main rocker arm through a rubber bushing; and a second end of the bent connecting rod is rotationally connected to a middle part of the short connecting rod through a rubber bushing.

[0017] In one embodiment of the present application, a first end of the shock absorber is rotationally connected to the inclined first section of the bent connecting rod through a rubber bushing.

[0018] In one embodiment of the present application, the shock absorber is a compression shock absorber.

[0019] In one embodiment of the present application, a first end of the main rocker arm is rotationally connected to the vehicle wheel through a bearing.

[0020] In one embodiment of the present application, a second end of the main rocker arm is rotationally connected to the vehicle frame through a rubber bushing.

[0021] Compared with the prior art, the present application has at least the following beneficial effects:

[0022] The motorcycle rear shock absorbing mechanism provided by the present application solves the problem of interference between a traditional compression shock absorber and a vehicle body arrangement, and fully utilizes the space below the main rocker arm by installing the rear compression shock absorber in a horizontal manner below the main rocker arm, thereby expanding the arrangement space of key electrical components such as a motorcycle battery pack and an inverter; the structure is simple and reliable, improves the ornamental value of the whole vehicle during movement, avoids the high cost of customizing a stretch shock absorber, and is conducive to the technical development and market promotion of electric motorcycles. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a structural schematic diagram of a motorcycle rear shock absorbing mechanism provided by the present application.

[0024] Figure 2 This is a top view of the motorcycle rear shock absorber mechanism provided by the present invention.

[0025] Figure 3 This is a schematic diagram illustrating the working principle of the motorcycle rear shock absorber mechanism provided by the present invention. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. These embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0027] This embodiment provides a rear shock absorber mechanism for a motorcycle, such as... Figure 1 As shown, the rear shock absorber mechanism specifically includes: wheel 1, frame 2, main rocker arm 3, auxiliary rocker arm 4, short connecting rod 5, curved connecting rod 6, and shock absorber 7.

[0028] Among them, such as Figure 1 and Figure 2 As shown, the first end of the main rocker arm 3 is rotatably connected to the wheel 1, and the second end of the main rocker arm 3 is rotatably connected to the frame 2; the first end of the auxiliary rocker arm 4 is rotatably connected to the wheel 1, and the second end of the auxiliary rocker arm 4 is rotatably connected to the frame 2, so as to directly transmit the reaction torque of the hub drive torque generated by the wheel 1 to the frame 2, so as to avoid the reaction torque directly acting on the main rocker arm 3, thereby avoiding the main rocker arm 3 from rotating relative to the frame 2.

[0029] In this embodiment, the first end of the main rocker arm 3 is rotatably connected to the wheel 1 via a bearing; the second end of the main rocker arm 3 is rotatably connected to the frame 2 via a rubber bushing.

[0030] like Figure 1 and Figure 3 As shown, the bending connecting rod 6 is bent, and the first end of the bending connecting rod 6 is rotatably connected to the main rocker arm 3, and the second end of the bending connecting rod 6 is rotatably connected to the middle of the short connecting rod 5; the first section of the bending connecting rod 6 near its first end is inclined, and the second section of the bending connecting rod 6 near its second end is arranged parallel to the main rocker arm 3; the first end of the short connecting rod 5 is rotatably connected to the frame 2.

[0031] In this embodiment, the short connecting rod 5 is vertical; as shown Figure 3 As shown, the bottom end of the short link 5 is rotatably fixed to the frame 2 through a pivot point, and the short link 5 can rotate around this pivot point; the top end of the short link 5 is rotatably connected to the second end of the shock absorber 7 through a plug bolt.

[0032] In this embodiment, the first end of the bent connecting rod 6 is rotatably connected to the main rocker arm 3 via a rubber bushing; the second end of the bent connecting rod 6 is rotatably connected to the middle part of the short connecting rod 5 via a rubber bushing.

[0033] At the same time, such as Figure 1As shown, the main rocker arm 3, the bent connecting rod 6, the short connecting rod 5 and the frame 2 form an internal space. The shock absorber 7 is arranged in the internal space, and the first end of the shock absorber 7 is rotationally connected to the first inclined section of the bent connecting rod 6, and the second end of the shock absorber 7 is rotationally connected to the second end of the short connecting rod 5, so that the shock absorber 7 is arranged parallel to the main rocker arm 3.

[0034] In this embodiment, the shock absorber 7 is a compression type shock absorber. The first end of the compression type shock absorber 7 is rotationally connected to the first inclined section of the bent connecting rod 6 through a rubber bushing.

[0035] As shown, Figure 3 When the wheel 1 jumps upward, the main rocker arm 3 drives the auxiliary rocker arm 4, the bent connecting rod 6 and the short connecting rod 5 to rotate together. The relative movement of the components in the rear shock absorbing mechanism compresses the two ends of the compression type shock absorber 7, so that the compression type shock absorber 7 plays a role of shock absorption and buffering, so that the reaction torque of the hub drive torque generated by the wheel 1 is directly transmitted to the frame 2 through the rear shock absorbing mechanism, avoiding the reaction torque directly acting on the main rocker arm 3, and further avoiding the rotation trend of the main rocker arm 3 relative to the frame 2.

[0036] In this embodiment, since different electric motorcycle models have different requirements for the lever ratio and installation space of the compression type shock absorber 7, the signal hinge points 1 and 2 of the bent connecting rod 6 can be adjusted along the length direction of the main rocker arm 3 and the short connecting rod 5, respectively.

[0037] Working principle of the present application:

[0038] When the wheel jumps upward, the main rocker arm drives the auxiliary rocker arm, the bent connecting rod and the short connecting rod to rotate together. The relative movement of the components in the rear shock absorbing mechanism compresses the two ends of the compression type shock absorber, so that the compression type shock absorber plays a role of shock absorption and buffering, so that the reaction torque of the hub drive torque generated by the wheel is directly transmitted to the frame through the rear shock absorbing mechanism, avoiding the reaction torque directly acting on the main rocker arm, and further avoiding the rotation trend of the main rocker arm relative to the frame.

[0039] In summary, the motorcycle rear shock absorbing mechanism of the present application solves the problem of interference between the traditional compression type shock absorber and the vehicle body arrangement. By installing the rear compression type shock absorber in a horizontal manner under the main rocker arm, the space under the main rocker arm is fully utilized, and the layout space of key electrical components such as motorcycle battery pack and inverter is expanded. The structure is simple and reliable, improves the observability of the whole vehicle movement process, avoids the high cost of customizing the stretch type shock absorber, and is conducive to the technical development and market promotion of electric motorcycles.

[0040] While the application has been described in detail by reference to preferred embodiments thereof, it should be recognized that the description set forth herein is by way of example and that modifications of the procedures described can be employed without departing from the scope of the application. Accordingly, the scope of the application should be determined by the appended claims and equivalents thereof.

Claims

1. A motorcycle rear shock absorber mechanism, characterized in that, include: wheel; Frame; The main rocker arm has two ends that are rotatably connected to the wheel and the frame, respectively. The secondary rocker arm has two ends that are rotatably connected to the wheel and the frame, respectively. A short connecting rod, the first end of which is rotatably connected to the vehicle frame; The bent connecting rod is bent, with its first end rotatably connected to the main rocker arm and its second end rotatably connected to the middle of the short connecting rod; and the first section of the bent connecting rod near its first end is inclined, and the second section of the bent connecting rod near its second end is arranged parallel to the main rocker arm. The main rocker arm, the curved connecting rod, the short connecting rod, and the vehicle frame form an internal space; A shock absorber is disposed within the internal space, with its first end rotatably connected to the inclined first section of the bent connecting rod, and its second end rotatably connected to the second end of the short connecting rod, such that the shock absorber is disposed parallel to the main rocker arm; and wherein the rear compression shock absorber is mounted horizontally below the main rocker arm.

2. The motorcycle rear shock absorber mechanism as described in claim 1, characterized in that, The short connecting rod is vertical.

3. The motorcycle rear shock absorber mechanism as described in claim 2, characterized in that, The bottom end of the short connecting rod is rotatably fixed to the frame via a pivot point, and the short connecting rod can rotate around the pivot point; the top end of the short connecting rod is rotatably connected to the second end of the shock absorber via a plug bolt.

4. The motorcycle rear shock absorber mechanism as described in claim 1, characterized in that, The first end of the bent connecting rod is rotatably connected to the main rocker arm via a rubber bushing; the second end of the bent connecting rod is rotatably connected to the middle of the short connecting rod via a rubber bushing.

5. The motorcycle rear shock absorber mechanism as described in claim 1, characterized in that, The first end of the shock absorber is rotatably connected to the inclined first section of the bending connecting rod via a rubber bushing.

6. The motorcycle rear shock absorber mechanism as described in claim 1, characterized in that, The first end of the main rocker arm is rotatably connected to the wheel via a bearing; the second end of the main rocker arm is rotatably connected to the vehicle frame via a rubber bushing.

7. The motorcycle rear shock absorber mechanism as described in claim 1, characterized in that, The shock absorber is a compression type shock absorber.

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