Damping device of cross-country motorcycle

Abstract

The utility model discloses a damping device for a cross-country motorcycle, which is characterized in that one end of a damper is connected with a frame upper end mounting lug of a frame, the other end of the damper is connected with a damper connecting support lug of a rocker arm, one end of the rocker arm is provided with a rear fork connecting support lug, and the rear fork connecting support lug is connected with a rear fork; a pull rod connecting support lug is arranged at the other end of the rocker arm and connected with a rocker arm connecting support lug of the pull rod, and a frame lower end connecting support lug of the pull rod is connected with a frame lower end mounting lug of the frame. The distance between the shock absorber connecting support lug of the rocker arm and the rear fork connecting support lug is larger than the distance between the shock absorber connecting support lug of the rocker arm and the pull rod connecting support lug. According to the technical scheme, the distance between the shock absorber connecting support lug of the rocker arm and the rear fork connecting support lug is larger than the distance between the shock absorber connecting support lug of the rocker arm and the pull rod connecting support lug, so that the effect that vibration is filtered at the initial stage of shock absorption on a light cross-country road surface and is prevented from being directly conducted to a rider is achieved; the problem that direct vibration conduction of an existing shock absorber under the non-high-strength cross-country road condition can cause rapid fatigue of a driver under frequent impact is solved.

Description

Technical Field

[0001] The utility model relates to a motorcycle accessory, in particular to a shock absorber device for a cross-country motorcycle. Background Art

[0002] Cross-country motorcycles often travel on rough terrains. The shock absorber device can absorb the impacts and vibrations from the ground, helping the rider maintain control of the vehicle, reducing the situation of the wheels leaving the ground, improving the driving stability, reducing the vibrations and impacts transmitted to the rider's body, reducing the fatigue feeling, and protecting the joints and muscles of the rider. Although the direct-connected shock absorber structure of the existing cross-country motorcycles can transmit the road bumps to the rider more directly, if under non-high-intensity cross-country road conditions, the direct transmission of vibrations will cause the rider to quickly fatigue under frequent impacts. Summary of the Utility Model

[0003] The utility model discloses a shock absorber device for a cross-country motorcycle, including: a shock absorber, a spring, the spring is sleeved on the shock absorber, and further includes: a rocker arm, a pull rod. One end of the shock absorber is connected to the upper mounting ear of the vehicle frame of the vehicle frame, the other end of the shock absorber is connected to the shock absorber connection ear of the rocker arm, one end of the rocker arm is provided with a rear swing arm connection ear, the rear swing arm connection ear is connected to the rear swing arm, the other end of the rocker arm is provided with a pull rod connection ear, the pull rod connection ear is connected to the rocker arm connection ear of the pull rod, the lower vehicle frame connection ear of the pull rod is connected to the lower mounting ear of the vehicle frame of the vehicle frame, and the distance between the shock absorber connection ear and the rear swing arm connection ear of the rocker arm is greater than the distance between the shock absorber connection ear and the pull rod connection ear of the rocker arm. Through the technical solution that the distance between the shock absorber connection ear and the rear swing arm connection ear of the rocker arm is greater than the distance between the shock absorber connection ear and the pull rod connection ear of the rocker arm, the utility model provides a technical solution for filtering vibrations in the initial stage of shock absorption on mild cross-country roads to avoid direct transmission of vibrations to the rider, and solves the problem that the direct transmission of vibrations of the existing shock absorbers under non-high-intensity cross-country road conditions will cause the rider to quickly fatigue under frequent impacts.

[0004] To achieve the above object, the utility model adopts the following technical solutions:

[0005] A shock absorber device for a cross-country motorcycle, including: a shock absorber, a spring, the spring is sleeved on the shock absorber, and further includes: a rocker arm, a pull rod. One end of the shock absorber is connected to the upper mounting ear of the vehicle frame of the vehicle frame, the other end of the shock absorber is connected to the shock absorber connection ear of the rocker arm, one end of the rocker arm is provided with a rear swing arm connection ear, the rear swing arm connection ear is connected to the rear swing arm, the other end of the rocker arm is provided with a pull rod connection ear, the pull rod connection ear is connected to the rocker arm connection ear of the pull rod, the lower vehicle frame connection ear of the pull rod is connected to the lower mounting ear of the vehicle frame of the vehicle frame, and the distance between the shock absorber connection ear and the rear swing arm connection ear of the rocker arm is greater than the distance between the shock absorber connection ear and the pull rod connection ear of the rocker arm.

[0006] Further setting: The shock absorber is composed of a cylinder block, a pressure accumulator tank, and a gas rod. The cylinder block is connected to the pressure accumulator tank. A connecting ear at the upper end of the frame is provided at the upper end of the cylinder block, and the connecting ear at the upper end of the frame is connected to the mounting ear at the upper end of the frame. The cylinder block is sleeved with the gas rod, and the rocker arm mounting ear of the gas rod is connected to the shock absorber connecting ear of the rocker arm.

[0007] Further setting: The rear swingarm is provided with a rear swingarm crossbar. A rear swingarm connecting ear is provided on the upper end surface of the rear swingarm crossbar. The rear swingarm connecting ear is connected to the rear swingarm connecting ear. A rear wheel connection position is provided at the rear end of the rear swingarm. The rear wheel connection position is connected to the rear wheel, and the rear swingarm is connected to the rear swingarm mounting position of the frame.

[0008] The technical solution of the present utility model, in which the distance between the shock absorber connecting ear of the rocker arm and the rear swingarm connecting ear is greater than the distance between the shock absorber connecting ear of the rocker arm and the pull rod connecting ear, provides a technical solution for filtering vibrations at the initial stage of shock absorption on mild off-road roads to avoid direct transmission of vibrations to the rider, and solves the problem that direct transmission of vibrations in existing shock absorbers under non-high-intensity off-road road conditions will cause rapid fatigue of the rider under frequent impacts. Description of the Drawings

[0009] Figure 1 is a three-dimensional view of the present utility model;

[0010] Figure 2 is a sectional view of the present utility model;

[0011] Figure 3 is a three-dimensional view of the present utility model installed on a motorcycle frame Figure 1 ;

[0012] Figure 4 is a three-dimensional view of the present utility model installed on a motorcycle frame Figure 2 ;

[0013] Figure 5 is a three-dimensional view of some components of the present utility model installed on a motorcycle frame Figure 3 ;

[0014] Figure 6 is a sectional view of the present utility model installed on a motorcycle frame in State 1;

[0015] Figure 7 is a sectional view of the present utility model installed on a motorcycle frame in State 2;

[0016] Figure 8 is a sectional view of the present utility model installed on a motorcycle frame in State 3;

[0017] In the figure: shock absorber 1, cylinder block 11, connecting ear 111 at the upper end of the frame, pressure accumulator tank 12, gas rod 13, rocker arm mounting ear 14,

[0018] Rocking arm 2, shock absorber connecting lug 21, rear swingarm connecting lug 22, pull rod connecting lug 23,

[0019] Pull rod 3, rocking arm connecting lug 31, lower frame connecting lug 32, spring 4,

[0020] Frame 5, upper frame mounting ear 51, lower frame mounting ear 52, rear swingarm mounting position 53,

[0021] Rear swingarm 6, rear swingarm crossbar 61, rear swingarm connecting ear 62, rear wheel connecting position 63, rear wheel 64. Specific embodiments

[0022] In order to make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] Secondly, the present utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0025] In order to make the purpose, technical solution and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As Figures 1-8 shown, an off-road motorcycle shock absorption device includes: a shock absorber 1, a spring 4, the spring 4 is sleeved on the shock absorber 1, and further includes: a rocking arm 2, a pull rod 3. One end of the shock absorber 1 is connected to the upper frame mounting ear 51 of the frame 5, the other end of the shock absorber 1 is connected to the shock absorber connecting lug 21 of the rocking arm 2. One end of the rocking arm 2 is provided with a rear swingarm connecting lug 22, the rear swingarm connecting lug 22 is connected to the rear swingarm 6, the other end of the rocking arm 2 is provided with a pull rod connecting lug 23, the pull rod connecting lug 23 is connected to the rocking arm connecting lug 31 of the pull rod 3, the lower frame connecting lug 32 of the pull rod 3 is connected to the lower frame mounting ear 52 of the frame 5, and the distance between the shock absorber connecting lug 21 and the rear swingarm connecting lug 22 of the rocking arm 2 is greater than the distance between the shock absorber connecting lug 21 and the pull rod connecting lug 23 of the rocking arm 2.

[0027] Preferably, the shock absorber 1 is composed of a cylinder block 11, a pressure accumulator 12, and a gas rod 13. The cylinder block 11 is connected to the pressure accumulator 12. An upper frame connection ear 111 is provided at the upper end of the cylinder block 11. The upper frame connection ear 111 is connected to the upper frame mounting ear 51 of the frame 5. The cylinder block 11 is sleeved with the gas rod 13. The rocker arm mounting ear 14 of the gas rod 13 is connected to the shock absorber connection ear 21 of the rocker arm 2.

[0028] Preferably, the rear swingarm 6 is provided with a rear swingarm crossbar 61. A rear swingarm connection ear 62 is provided on the upper end surface of the rear swingarm crossbar 61. The rear swingarm connection ear 62 is connected to the rear swingarm connection ear 22. A rear wheel connection position 63 is provided at the rear end of the rear swingarm 6. The rear wheel connection position 63 is connected to the rear wheel 64. The rear swingarm 6 is connected to the rear swingarm mounting position 53 of the frame 5.

[0029] The shock absorption working steps of the present utility model are as follows:

[0030] Step 1: As Figure 6 shown, when in State 1, the rear wheel does not contact the road surface bumps, and each component is in the initial state. The shock absorber 1 and the spring 4 of the shock absorption device are not compressed.

[0031] Step 2: As Figure 7 shown, when in State 2, the rear wheel is blocked by a small obstacle on the road surface, causing the rear wheel to be slightly lifted. The rear swingarm 6 rotates counterclockwise at a small angle with the rear swingarm mounting position 53 as the axis. The rear swingarm crossbar 61 also moves synchronously. The rear swingarm connection ear 22 connected to the rear swingarm connection ear 62 also moves upward. The rocker arm 2 is restricted by the pull rod 3 and the gas rod 13 of the shock absorber 1. While rotating counterclockwise at a small angle with the shock absorber connection ear 21 as the axis, the whole makes a small upward movement of compressing the shock absorber 1. However, due to the counterclockwise rotation of the rocker arm 2, the compression amounts of the shock absorber 1 and the spring 4 when the rear wheel passes over a small obstacle are less than those of the shock absorption structure in the direct connection type shock absorption structure. Therefore, when passing over a mild off-road road surface, the technical solution provided by the present utility model can make the vibration received by the rider less and milder, which is beneficial to reducing the fatigue feeling brought to the rider by the complex road surface.

[0032] Step 3: As Figure 8 shown, when in State 3, the rear wheel is blocked by a large obstacle on the road surface, causing the rear wheel to be greatly lifted. The rear swingarm 6 rotates counterclockwise at a large angle with the rear swingarm mounting position 53 as the axis. The rear swingarm crossbar 61 also moves synchronously. The rear swingarm connection ear 22 connected to the rear swingarm connection ear 62 also moves upward. The rocker arm 2 is restricted by the pull rod 3 and the gas rod 13 of the shock absorber 1. While rotating counterclockwise at a large angle with the shock absorber connection ear 21 as the axis, the whole makes a large upward movement of compressing the shock absorber 1. At this time, as Figure 8As shown, under the action of the pull rod 3 and the rear swing arm 6, the shock absorber connecting lug 21 of the rocker arm 2 is pushed upward in the direction of the compression shock absorber 1. Therefore, when passing through a high-strength off-road road surface, the compression amounts of the shock absorber 1 and the spring 4 are greater than those of the shock absorber structure in the direct connection type shock absorber structure. Therefore, when passing through a high-strength off-road road surface, the technical solution provided by the present invention can enable the rider to more directly feel the road conditions, and can also give more downward pressure to the rear wheel, reduce the suspension time of the rear wheel, increase the downward pressure of the rear wheel, and increase the riding safety.

[0033] Although the present invention has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention can be combined with each other in any way, and the exhaustive description of these combinations is not given in this specification only for the consideration of saving space and resources. Therefore, the present invention is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. An off-road motorcycle shock absorber device, comprising: Shock absorber (1), spring (4), the spring (4) is sleeved with the shock absorber (1), and it is characterized in that it further includes: rocker arm (2), pull rod (3). One end of the shock absorber (1) is connected to the upper frame mounting ear (51) of the frame (5), the other end of the shock absorber (1) is connected to the shock absorber connecting ear (21) of the rocker arm (2), one end of the rocker arm (2) is provided with a rear swingarm connecting ear (22), the rear swingarm connecting ear (22) is connected to the rear swingarm (6), the other end of the rocker arm (2) is provided with a pull rod connecting ear (23), the pull rod connecting ear (23) is connected to the rocker arm connecting ear (31) of the pull rod (3), the frame lower end connecting ear (32) of the pull rod (3) is connected to the frame lower end mounting ear (52) of the frame (5), and the distance between the shock absorber connecting ear (21) and the rear swingarm connecting ear (22) of the rocker arm (2) is greater than the distance between the shock absorber connecting ear (21) and the pull rod connecting ear (23) of the rocker arm (2).

2. The off-road motorcycle shock absorber device according to claim 1, characterized in that: The shock absorber (1) is composed of a cylinder block (11), a pressure accumulator (12), and a gas rod (13). The cylinder block (11) is connected to the pressure accumulator (12), the upper end of the cylinder block (11) is provided with an upper frame connecting ear (111), the upper frame connecting ear (111) is connected to the upper frame mounting ear (51) of the frame (5), the cylinder block (11) is sleeved with the gas rod (13), and the rocker arm mounting ear (14) of the gas rod (13) is connected to the shock absorber connecting ear (21) of the rocker arm (2).

3. The off-road motorcycle shock absorber device according to claim 2, characterized in that: The rear swingarm (6) is provided with: a rear swingarm cross bar (61), the upper end surface of the rear swingarm cross bar (61) is provided with a rear swingarm connecting ear (62), the rear swingarm connecting ear (62) is connected to the rear swingarm connecting ear (22), the rear end of the rear swingarm (6) is provided with a rear wheel connecting position (63), the rear wheel connecting position (63) is connected to the rear wheel (64), and the rear swingarm (6) is connected to the rear swingarm mounting position (53) of the frame (5).

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