Rear suspension of full-suspension bicycle

Abstract

The utility model relates to the technical field of bicycles, in particular to a rear suspension of a full-shock-proof bicycle, which comprises a rear tripod, a front frame, a lower shock-proof mechanism, an upper shock-proof mechanism and a shock absorber, a middle rotating shaft is rotatably arranged in the middle of the rear end of the front frame, and the upper shock-proof mechanism is rotatably connected with the middle rotating shaft. A shaft rod is rotatably arranged in the middle of the upper end of the front frame, one end of the shock absorber is rotatably connected with the shaft rod, the other end of the shock absorber is rotatably connected with the upper shock-absorbing mechanism, a lower rotating shaft is rotatably arranged at the lower end of the front frame, and the lower shock-absorbing mechanism is rotatably connected with the lower rotating shaft. The lower part of the front end of the rear tripod is rotationally connected with the lower shock-absorbing mechanism

Description

Technical Field

[0001] The utility model relates to the technical field of bicycles, in particular to a rear suspension of a full-shock-absorbing bicycle. Background Art

[0002] With the improvement of people's living standards, people need healthy outdoor sports, and riding sports bicycles has been widely welcomed by people. Existing high-end sports bicycles mostly use carbon fiber to make bicycle rear suspensions, but the existing rear suspensions have poor shock absorption performance, and riders are prone to feel bumps when riding, especially when riding at high speed on gravel or dirt roads, which will be more bumpy and make the bicycle difficult to control;

[0003] Therefore, a rear suspension of a full suspension bicycle is urgently needed for the technical problem described above. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned technology and provide a rear suspension of a full-suspension bicycle.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is a rear suspension of a full suspension bicycle, comprising:

[0006] A rear tripod, a front frame, a lower shock-absorbing mechanism, an upper shock-absorbing mechanism and a shock absorber, wherein a middle rotating shaft is rotatably provided at the middle part of the rear end of the front frame, the upper shock-absorbing mechanism is rotatably connected to the middle part of the middle rotating shaft, the upper part of the front end of the rear tripod is rotatably connected to the middle part of the upper shock-absorbing mechanism, an axle rod is rotatably provided at the middle part of the upper end of the front frame, one end of the shock absorber is rotatably connected to the axle rod, the other end of the shock absorber is rotatably connected to the upper shock-absorbing mechanism, a lower rotating shaft is rotatably provided at the lower end of the front frame, the lower shock-absorbing mechanism is rotatably connected to the lower rotating shaft, and the lower part of the front end of the rear tripod is rotatably connected to the lower shock-absorbing mechanism.

[0007] As an improvement, the upper shock-absorbing mechanism includes a V-shaped frame, an upper U-shaped frame and a middle bearing. Multiple pairs of middle bearings are symmetrically arranged on both sides of the V-shaped frame. The middle bearings are respectively arranged at the two ends and the middle of the V-shaped frame. The two ends of the middle rotating shaft are respectively connected to the middle bearing at the lower end of the V-shaped frame. A first rotating rod is arranged in the middle bearing at the upper end of the V-shaped frame. The two rear ends of the upper U-shaped frame are respectively rotatably connected to the corresponding first rotating rods. A lower fixed rod is arranged at the front end of the upper U-shaped frame. One end of the shock absorber is rotatably connected to the lower fixed rod. A second rotating rod is arranged in the middle bearing in the middle of the V-shaped frame. The upper front end of the rear tripod is rotatably connected to the second rotating rod.

[0008] As an improvement, the rear end of the upper U-shaped frame extends from the middle of the V-shaped frame.

[0009] As an improvement, the lower shock-absorbing mechanism includes a lower U-shaped frame and a lower bearing. The front and rear ends of the lower U-shaped frame are both provided with lower bearings. The two ends of the lower rotating shaft are respectively connected to the lower bearings at the front ends of the lower U-shaped frame. A third rotating rod is provided in the lower bearing at the rear end of the lower U-shaped frame. The lower part of the front end of the rear tripod is rotatably connected to the third rotating rod.

[0010] The advantages of the utility model compared with the prior art are:

[0011] 1. The rotation center of the rear wheel center track is located in front of the rear suspension in the normal riding position to reduce pedaling energy loss and achieve better pedaling efficiency within the normal riding posture range;

[0012] 2. The instantaneous center of the rear suspension and the chain line of the intersection of the rear axle and the vertical line of the ground, and the rotation center of the rear wheel center track move the rear wheel toward the rear; when the shock absorber swings, the lower shock absorber mechanism is stretched to make the lower U-shaped frame and the rear axle chain line tend to be straight, which can reduce the pedal return caused by the shock absorber effect and bring a better rear wheel track;

[0013] 3. The lower shock-absorbing mechanism, upper shock-absorbing mechanism and shock absorber are installed in the middle of the rear suspension. The instantaneous center of the rear suspension is always kept near the center of mass, providing excellent shock-absorbing performance and handling stability for the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a side view of a rear suspension of a full-suspension bicycle.

[0015] Figure 2 The utility model is a rear-view stereoscopic structural schematic diagram of a rear suspension of a full-shock-absorbing bicycle.

[0016] Figure 3 The utility model is a front three-dimensional structural schematic diagram of a rear suspension of a full-suspension bicycle.

[0017] Figure 4 The utility model is a reference diagram of a disassembled state of a rear suspension of a full-suspension bicycle.

[0018] Figure 5 The utility model is a schematic structural diagram of an upper shock-absorbing mechanism of a rear suspension of a full-shock-absorbing bicycle.

[0019] Figure 6 The utility model is a structural schematic diagram of a rear suspension V-shaped frame of a full shock-absorbing bicycle.

[0020] Figure 7 The utility model is a structural schematic diagram of an upper U-shaped frame of a rear suspension of a full-shock-absorbing bicycle.

[0021] Figure 8The utility model is a structural schematic diagram of a U-shaped frame at the lower part of a rear suspension of a full-shock-absorbing bicycle.

[0022] Fig. 9 The utility model is a motion state exploded diagram of a rear suspension of a full-suspension bicycle.

[0023] As shown in the figure:

[0024] 100, rear tripod, 200, front frame, 201, middle shaft, 202, shaft rod, 203, lower shaft, 300, shock absorber, 401, V-shaped frame, 402, upper U-shaped frame, 403, middle bearing, 404, first rotating rod, 405, lower fixed rod, 406, second rotating rod, 501, lower U-shaped frame, 502, lower bearing, 503, third rotating rod. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0026] Combined with Figure 1-9 , a rear suspension of a full suspension bicycle, comprising:

[0027] The rear tripod 100, the front frame 200, the lower shock absorbing mechanism, the upper shock absorbing mechanism and the shock absorber 300, the middle part of the rear end of the front frame 200 is rotatably provided with a middle rotating shaft 201, the upper shock absorbing mechanism is rotatably connected to the middle rotating shaft 201, the upper part of the front end of the rear tripod 100 is rotatably connected to the middle of the upper shock absorbing mechanism, the middle part of the upper end of the front frame 200 is rotatably provided with an axle rod 202, one end of the shock absorber 300 is rotatably connected to the axle rod 202, the other end of the shock absorber 300 is rotatably connected to the upper shock absorbing mechanism, the lower end of the front frame 200 is rotatably provided with a lower rotating shaft 203, the lower shock absorbing mechanism is rotatably connected to the lower rotating shaft 203, and the lower part of the front end of the rear tripod 100 is rotatably connected to the lower shock absorbing mechanism.

[0028] The upper shock-absorbing mechanism comprises a V-shaped frame 401, an upper U-shaped frame 402 and a middle bearing 403. A plurality of pairs of middle bearings 403 are symmetrically arranged on both sides of the V-shaped frame 401. The middle bearings 403 are respectively arranged at the two ends and the middle of the V-shaped frame 401. The two ends of the middle rotating shaft 201 are respectively connected to the middle bearing 403 at the lower end of the V-shaped frame 401. A first rotating rod 404 is arranged in the middle bearing 403 at the upper end of the V-shaped frame 401. The two rear ends of the upper U-shaped frame 402 are respectively rotatably connected to the corresponding first rotating rods 404. A lower fixed rod 405 is arranged at the front end of the upper U-shaped frame 402. One end of the shock absorber 300 is rotatably connected to the lower fixed rod 405. A second rotating rod 406 is arranged in the middle bearing 403 in the middle of the V-shaped frame 401. The upper front end of the rear tripod 100 is rotatably connected to the second rotating rod 406.

[0029] The rear end of the upper U-shaped frame 402 extends from the middle of the V-shaped frame 401 .

[0030] The lower shock-absorbing mechanism includes a lower U-shaped frame 501 and a lower bearing 502. The lower U-shaped frame 501 is provided with lower bearings 502 at both front and rear ends. The two ends of the lower rotating shaft 203 are respectively connected to the lower bearings 502 at both front ends of the lower U-shaped frame 501. The lower bearing 502 at the rear end of the lower U-shaped frame 501 is provided with a third rotating rod 503. The lower front end of the rear tripod 100 is rotatably connected to the third rotating rod 503.

[0031] When the utility model is implemented,

[0032] During operation, the motion states of the rear tripod 100, the lower shock-absorbing mechanism, and the upper shock-absorbing mechanism in each stage diagram are as follows: Fig. 9 As shown;

[0033] The 100% position represents the end stroke, the rear suspension position of a full suspension bicycle represents the middle support, B represents the upper suspension mechanism, C represents the lower suspension mechanism, D represents the rear wheel, and E represents the rotation axis of the pedals;

[0034] The center of rotation of the rear wheel center track is located in front of the rear suspension in the normal riding position (i.e. 25% shock absorber travel) to reduce pedaling energy loss;

[0035] When the shock absorber swings, the lower shock absorber mechanism and the upper shock absorber mechanism will move downward as a whole, that is, the connection between the rear tripod 100 and the front frame 200 will move downward, so that the wheel axle at the rear wheel of the rear tripod 100 is gradually higher than the rotation axis of the pedal, forming a Fig. 9The motion track shown, at the same time, the rear tripod 100 will push the upper shock-absorbing mechanism to rotate forward with the middle rotating shaft 201 as the axis, and then the upper U-shaped frame 402 will move forward, thereby pushing the shock absorber 300 to achieve shock absorption;

[0036] Stretching the lower shock absorber mechanism makes the lower U-shaped frame 501 and the rear axle chain line tend to be straight, which can reduce the pedal return caused by the shock absorber effect and bring better rear wheel tracking;

[0037] The lower shock absorber mechanism and the upper shock absorber mechanism are installed in the middle of the rear suspension. The instantaneous center (IC) of the rear suspension is always kept near the center of mass (CG), ensuring the balance of the whole vehicle and the stability during riding.

[0038] When the travel exceeds 82.5%, the rear tripod 100 uses the middle rotating shaft 201 of the upper shock-absorbing mechanism as the rotating shaft, which will cause the instantaneous center of the rear suspension to shift backward, thereby providing excellent shock-absorbing performance and handling stability for the entire vehicle.

[0039] In the description of the embodiments of the present utility model, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the embodiments of the present invention, "multiple" means at least 2.

[0042] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0043] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A rear suspension of a full suspension bicycle, characterized in that: include: A rear tripod (100), a front frame (200), a lower shock absorbing mechanism, an upper shock absorbing mechanism and a shock absorber (300); a middle rotating shaft (201) is rotatably provided at the middle of the rear end of the front frame (200); the upper shock absorbing mechanism is rotatably connected to the middle rotating shaft (201); the upper front end of the rear tripod (100) is rotatably connected to the middle of the upper shock absorbing mechanism; a shaft rod (202) is rotatably provided at the middle of the upper end of the front frame (200); one end of the shock absorber (300) is rotatably connected to the shaft rod (202); the other end of the shock absorber (300) is rotatably connected to the upper shock absorbing mechanism; a lower rotating shaft (203) is rotatably provided at the lower end of the front frame (200); the lower shock absorbing mechanism is rotatably connected to the lower rotating shaft (203); the lower front end of the rear tripod (100) is rotatably connected to the lower shock absorbing mechanism.

2. The rear suspension of a full suspension bicycle according to claim 1, characterized in that: The upper shock-absorbing mechanism comprises a V-shaped frame (401), an upper U-shaped frame (402) and a middle bearing (403). A plurality of pairs of middle bearings (403) are symmetrically arranged on both sides of the V-shaped frame (401). The middle bearings (403) are respectively arranged at the two ends and the middle of the V-shaped frame (401). The two ends of the middle rotating shaft (201) are respectively connected to the middle bearings (403) at the lower end of the V-shaped frame (401). The middle bearings (403) at the upper end of the V-shaped frame (401) are provided with a first rotating shaft. The upper U-shaped frame (402) is provided with a movable rod (404), the two rear ends of the upper U-shaped frame (402) are respectively rotatably connected to the corresponding first rotating rods (404), the front end of the upper U-shaped frame (402) is provided with a lower fixed rod (405), one end of the shock absorber (300) is rotatably connected to the lower fixed rod (405), a second rotating rod (406) is provided in the middle bearing (403) in the middle of the V-shaped frame (401), and the upper front end of the rear tripod (100) is rotatably connected to the second rotating rod (406).

3. The rear suspension of a full suspension bicycle according to claim 2, characterized in that: The rear end of the upper U-shaped frame (402) extends from the middle of the V-shaped frame (401).

4. The rear suspension of a full suspension bicycle according to claim 1, characterized in that: The lower shock-absorbing mechanism comprises a lower U-shaped frame (501) and a lower bearing (502); the lower bearings (502) are provided at both front and rear ends of the lower U-shaped frame (501); the two ends of the lower rotating shaft (203) are respectively connected to the lower bearings (502) at both front ends of the lower U-shaped frame (501); a third rotating rod (503) is provided in the lower bearing (502) at the rear end of the lower U-shaped frame (501); and the lower front end of the rear tripod (100) is rotatably connected to the third rotating rod (503).

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