A multi-link mountain bike rear suspension structure

Abstract

The utility model relates to a bicycle technical field, a kind of multi-connecting rod formula mountain bike rear shock absorbing structure, including frame, the symmetric "V" shape and the opening is set to the support plate of being set up upward in the middle two sides of one end of frame, shock absorber is equipped in one end between two support plates, the top of shock absorber is rotatably connected with the end portion of support plate by pivot, and the bottom of shock absorber is rotatably installed on fixed frame by pivot, and fixed frame is fixed with frame;Striated first connecting plate is rotatably installed on the other end of support plate by pivot, and the top of the other end of first connecting plate is provided with first slot, and the bottom of first slot is arc surface.The utility model is cooperated with the fixing mode of sleeve and locking nut by the cooperation of first slot and second slot, when rear wheel is disassembled, just need to loosen locking nut and lift second connecting plate, do not need to forcibly pull along the connecting shaft axial direction, significantly simplify the replacement process of rear wheel, and it is labor-saving and efficient to operate.

Description

Technical Field

[0001] This utility model relates to the field of bicycle technology, and in particular to a multi-link mountain bike rear shock absorber structure. Background Technology

[0002] A bicycle, also known as a pedal bike or cyclist, is typically a small, two-wheeled land vehicle. Riders power it by pedaling, making it a green and environmentally friendly mode of transportation. There are many types of bicycles, including single-person, tandem, and multi-person bicycles. They can be used for commuting and getting around in an environmentally friendly way; increasingly, people are using bicycles as fitness equipment for exercise and cycling tours; and cycling itself is also a competitive sport, with events such as road cycling, mountain biking, track cycling, and stunt cycling.

[0003] When riding mountain bikes in forests, the uneven terrain and numerous stones inevitably cause vibrations, potentially damaging the frame. Therefore, most mountain bikes have a shock absorber installed at the rear wheel. Existing shock absorbers are often placed at the rear wheel, replacing the original frame connection. Since the rear wheel, as the drive component, needs to rotate within the shock absorber, a sleeve is typically attached to the rear of the shock absorber for mounting. This method makes rear wheel removal difficult when damaged; the two sleeves connecting the shock absorber to the rear wheel must be pulled outwards to allow sufficient space for removal, which is laborious and inconvenient. To address these issues, we propose a multi-link rear shock absorber design for mountain bikes. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings in the existing technology by proposing a multi-link rear shock absorber structure for mountain bikes.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a multi-link mountain bike rear shock absorber structure, including a frame, with "V"-shaped support plates symmetrically arranged on both sides of the middle of one end of the frame and the opening facing upwards. A shock absorber is installed in one end between the two support plates. The top of the shock absorber is rotatably connected to the end of the support plate through a pivot, and the bottom of the shock absorber is rotatably mounted on a fixed frame through a pivot. The fixed frame is fixed to the frame.

[0007] A strip-shaped first connecting plate is rotatably mounted on the other end of the support plate via a rotating shaft. The top of the other end of the first connecting plate is provided with a first slot, and the bottom of the first slot is an arc-shaped surface.

[0008] A connecting seat is installed at the bottom of one end of the frame near the first connecting plate. Both ends of the connecting seat are rotatably mounted with connecting parts via a pivot. The other end of the connecting parts is fixed to the second connecting plate. A second slot is provided on the bottom of the other end of the second connecting plate, and the second slot corresponds to the first slot.

[0009] The present invention also includes a rear wheel, and a connecting shaft is coaxially installed in the middle of the rear wheel. Both ends of the connecting shaft are fitted with sleeves, which are rotatably connected to the connecting shaft through bearings. The sleeves correspond to the first slot, and both ends of each sleeve are threaded with a locking nut.

[0010] Preferably, both ends of each support plate are connected by strip-shaped reinforcing plates, and the reinforcing plates are rotatably connected to the support plates.

[0011] Preferably, the connector includes a connecting pipe, one end of which is connected to the second connecting plate, and a connecting rod is built into the other end of the connecting pipe, the other end of which is fixed to the connecting seat via a pivot.

[0012] Preferably, an annular limiting plate is installed at one end edge of the connecting rod placed inside the connecting tube, the edge of the limiting plate is in clearance fit with the inner wall of the connecting tube, and the opening of the connecting tube is in clearance fit with the outer wall of the connecting rod.

[0013] Preferably, the first connecting plate and the second connecting plate are both carbon fiber plates, while the connecting rod and the connecting pipe are both carbon fiber pipes.

[0014] Preferably, at least one limiting groove is provided on the inner wall of the first slot, and a limiting block corresponding to the limiting groove is installed on the outer wall of the sleeve.

[0015] Preferably, an annular baffle is installed on the end of the connecting shaft.

[0016] The design scheme proposed in this utility model has the following beneficial effects in application:

[0017] 1. This utility model, through the cooperation of the first and second slots, combined with the fixing method of the sleeve and the locking nut, allows the rear wheel to be disassembled simply by loosening the locking nut and lifting the second connecting plate, without the need to forcibly pull along the axis of the connecting shaft. This significantly simplifies the rear wheel replacement process, making the operation labor-saving and efficient.

[0018] 2. This utility model adopts a multi-link structure (support plate, first connecting plate, second connecting plate) to work in conjunction with the shock absorber. When the rear wheel encounters a bump, the vibration is transmitted to the shock absorber through the linkage. The shock absorber absorbs the impact force through compression or rebound, effectively improving the stability and comfort of riding. Attached Figure Description

[0019] Figure 1This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the vehicle frame structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the rear wheel structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the connector of this utility model.

[0024] In the diagram: 1. Frame; 2. Support plate; 3. Reinforcing plate; 4. Shock absorber; 5. Fixing bracket; 6. First connecting plate; 7. First slot; 8. Connecting seat; 9. Connecting rod; 10. Connecting pipe; 11. Second connecting plate; 12. Second slot; 13. Limiting slot; 14. Connecting shaft; 15. Rear wheel; 16. Sleeve; 17. Locking nut; 18. Limiting block; 19. Baffle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0026] Reference Figures 1-5 A multi-link mountain bike rear shock absorber structure includes a frame 1. Symmetrically arranged "V"-shaped support plates 2 with upward-facing openings are located on both sides of the middle of one end of the frame 1. A shock absorber 4 is located at one end between the two support plates 2. The top of the shock absorber 4 is rotatably connected to the end of the support plate 2 via a pivot, and the bottom of the shock absorber 4 is rotatably mounted on a fixed frame 5 via a pivot. The fixed frame 5 is fixed to the frame 1. In actual use, the shock absorber 4 is either a pneumatic shock absorber or a hydraulic shock absorber, providing power for the rear wheel's shock absorption.

[0027] Furthermore, in order to improve the connection strength of the support plate 2, both ends of each support plate 2 are connected by a strip-shaped reinforcing plate 3, and the reinforcing plate 3 is rotatably connected to the support plate 2.

[0028] like Figure 2 and Figure 3 As shown, a strip-shaped first connecting plate 6 is rotatably mounted on the other end of the support plate 2 via a rotating shaft. The top of the other end of the first connecting plate 6 is provided with a first slot 7. The bottom of the first slot 7 is an arc-shaped surface, that is, the first slot 7 can be used as a slot to support objects placed inside.

[0029] A connecting seat 8 is installed at the bottom of one end of the frame 1 near the first connecting plate 6. Both ends of the connecting seat 8 are rotatably mounted with connecting parts via a pivot. The other end of the connecting parts is fixed to the second connecting plate 11. The connecting parts include a connecting tube 10. One end of the connecting tube 10 is connected to the second connecting plate 11, and a connecting rod 9 is built into the other end of the connecting tube 10. The other end of the connecting rod 9 is fixed to the connecting seat 8 via a pivot, so that the position of the second connecting plate 11 can be adjusted according to the sliding of the connecting tube 10 on the connecting rod 9.

[0030] In order to limit the sliding of the connecting pipe 10 on the connecting rod 9 and prevent the connecting pipe 10 from falling off the connecting rod 9, therefore... Figure 5 As shown, an annular limiting plate is installed at one end edge of the connecting rod 9 inside the connecting tube 10. The edge of the limiting plate is in clearance fit with the inner wall of the connecting tube 10, and the opening of the connecting tube 10 is in clearance fit with the outer wall of the connecting rod 9.

[0031] Furthermore, in order to improve the overall weight reduction of the frame 1, the first connecting plate 6 and the second connecting plate 11 are both carbon fiber plates, while the connecting rod 9 and the connecting tube 10 are both carbon fiber tubes. This not only reduces the weight of the shock absorption structure, but also ensures the texture and rigidity of the shock absorption structure and the connection strength between it and the frame 1.

[0032] A second slot 12 is provided on the bottom of the other end of the second connecting plate 11. The second slot 12 corresponds to the first slot 7, that is, the second slot 12 and the first slot 7 can form a circular through hole when viewed from the front.

[0033] Specifically, during use, the position of the second connecting plate 11 can be adjusted to adjust the corresponding position of the second slot 12 to ensure that the second slot 12 is aligned with the first slot 7.

[0034] like Figure 2 and Figure 4As shown, this utility model also includes a rear wheel 15, with a connecting shaft 14 coaxially mounted in the middle of the rear wheel 15. Sleeves 16 are fitted at both ends of the connecting shaft 14, and the sleeves 16 are rotatably connected to the connecting shaft 14 via bearings. The sleeves 16 correspond to the first slot 7, and each sleeve 16 has a locking nut 17 threaded to both ends. In use, the rear wheel 15 is removed, and the sleeves 16 at both ends are placed in the first slot 7. Then, the second connecting plate 11 is removed. Due to the rotatable connection between the connecting rod 9 and the connecting seat 8, the second connecting plate 11 can rotate accordingly. This arrangement does not affect the operation of placing the sleeve 16 in the first slot 7, and facilitates subsequent adjustment of the second connecting plate 11. The second connecting plate 11 is secured to the sleeve 16 by relying on the second slot 12. This ensures that the sleeve 16 is fully wrapped when the openings of the first slot 7 and the second slot 12 are opposite each other. Then, the locking nuts 17 at both ends of the sleeve 16 are tightened to make it fit tightly against the connecting plate, thus completing the fastening between the first connecting plate 6 and the second connecting plate 11. This prevents the first connecting plate 6 and the second connecting plate 11 from separating and causing the connecting shaft 14 to fall out of the slot.

[0035] Specifically, during disassembly, simply loosen the locking nuts 17 at both ends to lift the second connecting plate 11 and detach it from the sleeve 16. At this point, the entire rear wheel 15 can be removed without having to pry the connecting plate along the axis of the connecting shaft 14 to detach it from the connecting shaft 14, thus improving the convenience of replacing the rear wheel 15.

[0036] It should be noted that when the rear wheel 15 is traveling in the mountains and vibrates due to the uneven ground, the rotation between the first connecting plate 6 and the support plate 2 will cause the other end of the support plate 2 to pull or squeeze the shock absorber 4 along the axis of the shock absorber 4. In this way, the shock absorber 4 can be compressed during its movement and the rebound force of the compression to achieve the function of shock absorption and vibration damping.

[0037] Furthermore, when placing the sleeve 16 into the first slot 7, as... Figure 3 and Figure 4 As shown, at least one limiting groove 13 is provided on the inner wall of the first slot 7, and a limiting block 18 corresponding to the limiting groove 13 is installed on the outer wall of the sleeve 16 to limit the sleeve 16 in the first slot 7, so as to ensure that the sleeve 16 will not rotate unexpectedly in the slot, which would cause the subsequent rear wheel 15 transmission chain to loosen.

[0038] In addition, annular baffles 19 are installed on the ends of the connecting shaft 14. When the transmission sprocket is installed, the transmission sprocket can be limited to prevent it from leaning against the locking nut 17 and affecting the locking nut 17.

[0039] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A multi-link mountain bike rear shock absorber structure, characterized in that: Includes a frame (1), with support plates (2) symmetrically arranged in a "V" shape and with openings facing upwards on both sides of the middle of one end of the frame (1), and a shock absorber (4) is provided in one end between the two support plates (2). The top of the shock absorber (4) is rotatably connected to the end of the support plate (2) through a pivot, and the bottom of the shock absorber (4) is rotatably mounted on a fixed frame (5) through a pivot. The fixed frame (5) is fixed to the frame (1). A strip-shaped first connecting plate (6) is rotatably mounted on the other end of the support plate (2) via a rotating shaft. A first slot (7) is provided on the top of the other end of the first connecting plate (6), and the bottom of the first slot (7) is an arc-shaped surface. A connecting seat (8) is installed at the bottom of one end of the frame (1) near the first connecting plate (6). Both ends of the connecting seat (8) are rotatably mounted with connecting parts through a rotating shaft. The other end of the connecting parts is fixed to the second connecting plate (11). A second slot (12) is opened on the bottom of the other end of the second connecting plate (11). The second slot (12) corresponds to the first slot (7). It also includes a rear wheel (15), and a connecting shaft (14) is coaxially installed in the middle of the rear wheel (15). Both ends of the connecting shaft (14) are fitted with sleeves (16). The sleeves (16) are rotatably connected to the connecting shaft (14) through bearings, and the sleeves (16) correspond to the first slot (7). Both ends of each sleeve (16) are threaded with a locking nut (17).

2. The multi-link mountain bike rear shock absorber structure according to claim 1, characterized in that: Both ends of each support plate (2) are connected by strip-shaped reinforcing plates (3), and the reinforcing plates (3) are rotatably connected to the support plates (2).

3. The multi-link mountain bike rear shock absorber structure according to claim 1, characterized in that: The connector includes a connecting pipe (10), one end of which is connected to the second connecting plate (11), and a connecting rod (9) is built into the other end of the connecting pipe (10). The other end of the connecting rod (9) is fixed to the connecting seat (8) by a rotating shaft.

4. The multi-link mountain bike rear shock absorber structure according to claim 3, characterized in that: An annular limiting plate is installed at one end edge of the connecting rod (9) inside the connecting tube (10). The edge of the limiting plate is in clearance fit with the inner wall of the connecting tube (10), and the opening of the connecting tube (10) is in clearance fit with the outer wall of the connecting rod (9).

5. The multi-link mountain bike rear shock absorber structure according to claim 4, characterized in that: The first connecting plate (6) and the second connecting plate (11) are both carbon fiber plates, while the connecting rod (9) and the connecting pipe (10) are both carbon fiber pipes.

6. The multi-link mountain bike rear shock absorber structure according to claim 1, characterized in that: At least one limiting groove (13) is provided on the inner wall of the first slot (7), and a limiting block (18) corresponding to the limiting groove (13) is installed on the outer wall of the sleeve (16).

7. The multi-link mountain bike rear shock absorber structure according to claim 1, characterized in that: An annular baffle (19) is installed on the end of the connecting shaft (14).

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