Damping mountain bike frame
By installing shock absorbers between the front fork and the connecting frame, and on both sides of the connection point between the connecting frame and the rear fork, the problem of insufficient shock absorption in the rear wheel area of mountain bikes is solved, resulting in better riding comfort and frame durability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 唐贵生
- Filing Date
- 2025-04-27
- Publication Date
- 2026-05-15
AI Technical Summary
Existing mountain bikes lack a shock absorption system in the rear wheel area, resulting in a poor riding experience on rough roads and making the entire bike structure susceptible to damage from impacts.
A first shock absorber is installed between the front fork frame and the connecting frame of the bicycle, and a second and a third shock absorber are installed on both sides of the connection point between the connecting frame and the rear fork frame, respectively, to absorb and mitigate vibrations and reduce impact through the conversion of the elastic potential energy of the spring.
It effectively reduces the bumps experienced by the rider, enhances riding comfort, prevents frame structure damage due to vibration, and improves the overall durability of the bike.
Smart Images
Figure CN224241168U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bicycle technology, and in particular to a shock-absorbing mountain bike frame. Background Technology
[0002] The existing mountain bikes mainly concentrate their shock absorption in the front fork. While the front fork can filter out bumps when the bike travels over rough terrain, reducing the vibrations felt by the rider's hands, there is no shock absorption system in the rear wheel area connected to the saddle. Therefore, the rider will directly experience the road conditions transmitted from the rear wheel when sitting on the saddle, and the bumps will seriously affect the rider's experience. In addition, because there is only one shock absorber, the entire system is prone to breakage under a huge impact. Utility Model Content
[0003] The purpose of this invention is to provide a shock-absorbing mountain bike frame to solve the problems mentioned in the background art.
[0004] A shock-absorbing mountain bike frame, characterized in that it includes a frame, the frame including a front fork frame, a rotating sleeve sleeved and connected to the front fork frame, a connecting frame rotatably connected to the rotating sleeve, the connecting frame and the front fork frame being connected by a first shock-absorbing device, a rear fork frame rotatably connected to the connecting frame, a second shock-absorbing device being provided on one side of the connection point between the connecting frame and the rear fork frame, and a third shock-absorbing device being provided on the other side.
[0005] Preferably, two limiting rings are fixedly connected to the front fork frame, and the rotating sleeve is sleeved and connected to the front fork frame, with the rotating sleeve located between the two limiting rings.
[0006] Furthermore, a rotating plate is fixedly connected to the side of the rotating sleeve, and a connecting sleeve is fixedly connected to one end of the connecting frame. The connecting sleeve is sleeved and connected to the outside of the rotating sleeve. A connecting seam is opened on the side of the connecting sleeve away from the connecting frame. The rotating plate is located in the connecting seam. A rotating plate is fixedly connected to both sides of the connecting seam on the connecting sleeve. A rotating shaft is rotatably connected to the rotating plate. The rotating shaft also passes through the rotating plate.
[0007] Preferably, the first shock absorber includes a first adjusting rod, the first end of which is rotatably connected to a rotating sleeve, the second end of which is threadedly connected to a limiting bolt, a first spring is also sleeved on the first adjusting rod, the first spring is blocked by the limiting bolt, a first limiting tube is sleeved on the first spring, the end of the first limiting tube near the front fork frame can prevent the first spring from passing through, and the first limiting tube is rotatably connected to the connecting frame.
[0008] Furthermore, a first limiting post is threadedly connected to the outer side of the first limiting tube, and the other end of the first limiting post...
[0009] Preferably, the second shock absorber includes a telescopic rod, with limit blocks fixedly connected to both ends of the telescopic rod. A second spring is provided between the two limit blocks, and the second spring is sleeved on the telescopic rod. One limit block is rotatably connected to the connecting frame, and the other limit block is rotatably connected to the rear fork frame.
[0010] Furthermore, the structure of the third shock absorber is the same as that of the first shock absorber.
[0011] Furthermore, the connecting frame is provided with several through holes for connecting with the limiting block.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: The shock-absorbing mountain bike frame of this utility model is divided into three main structures: the front fork frame, the connecting frame, and the rear fork frame. A rotating sleeve is fitted on the front fork frame, and the rotating sleeve is rotatably connected to the connecting frame. The front fork frame can rotate freely relative to the rotating sleeve, so that it can be controlled by the handlebars at the top of the front fork frame to steer the front wheel at the bottom of the front fork frame. The front fork frame and the connecting frame are also connected by a first shock-absorbing device. The first shock-absorbing device can dampen the rotation of the front fork frame relative to the connecting frame. The main function of the first shock-absorbing device is to absorb the vibration through a first spring.
[0013] The top of the connecting frame is used to connect to the bicycle seat. The rider's weight is first supported by the connecting frame and then transferred to the front fork and rear rack. There is a first shock absorber between the connecting frame and the front fork for shock absorption. Shock absorbers can also be installed on the front fork, which is existing technology. In this design, the connecting frame and the rear rack are rotatably connected. When a person sits on the seat, the connecting frame will rotate relative to the rear rack. A second shock absorber and a third shock absorber are respectively installed on both sides of the connection point between the connecting frame and the rear rack. When the connecting frame and the rear rack rotate relative to each other due to the bumps of the road, the second and third shock absorbers can absorb energy through the second and third springs and convert it into elastic potential energy. Then, the energy is slowly fed back through the springs, thereby achieving the shock absorption effect and making the rider more comfortable when passing through rough roads.
[0014] The first and third shock absorbers use the same structure. When the distance between the connection points at both ends of the shock absorber changes, the springs inside can absorb the vibration and release it slowly. This reduces the impact of bumpy roads on the bicycle's vibration and damage to the overall structure of the bicycle. At the same time, it can reduce the bumps experienced by the rider and enhance the rider's riding experience. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;
[0016] Figure 2 This is a cross-sectional structural schematic diagram of the first shock-absorbing device according to an embodiment of the present invention;
[0017] Figure 3 This is a cross-sectional structural schematic diagram of the second shock-absorbing device according to an embodiment of the present invention;
[0018] Figure 4 This is a cross-sectional structural diagram of the third shock-absorbing device according to an embodiment of the present invention.
[0019] In the diagram: 1. Front fork; 11. Limiting ring; 12. Rotating sleeve; 13. Rotating plate; 2. Rear fork; 3. Connecting frame; 31. Connecting sleeve; 32. Rotating plate; 4. First shock absorber; 41. First adjusting rod; 42. First spring; 43. First limiting tube; 44. First limiting post; 5. Second shock absorber; 51. Telescopic rod; 52. Limiting block; 53. Second spring; 6. Third shock absorber; 61. Third adjusting rod; 62. Third spring; 63. Third limiting tube; 64. Third limiting post. Detailed Implementation
[0020] The following will describe specific embodiments and appendices. Figure 1-4 The technical solutions in the embodiments of this utility model will be clearly and completely described.
[0021] A shock-absorbing mountain bike frame includes a frame comprising three main parts: a front fork 1, a connecting frame 3, and a rear fork 2. The front fork 1 is rotatably connected to the connecting frame 3, and the connecting frame 3 is rotatably connected to the rear fork 2. The upper part of the front fork 1 can be fixedly connected to the handlebars, and the lower part can be rotatably connected to the front wheel. The upper part of the connecting frame 3 can be fixedly connected to the saddle. On the rear fork 2, near the position of the rear fork 2 and the connecting frame 3, a pedal can be installed. The rear wheel can be installed at the rear of the rear fork 2, and the rear wheel and the pedal are connected by a transmission. This is prior art.
[0022] Two limiting rings 11 are fixedly connected to the middle of the front fork frame 1. A rotating sleeve 12 is provided between the two limiting rings 11. The rotating sleeve 12 is sleeved on the front fork frame 1 and can rotate freely relative to the front fork frame 1. The rotating sleeve 12 is restricted by the two limiting rings 11 and cannot slide along the axial direction of the front fork frame 1. A rotating plate 13 is fixedly connected to the side of the rotating sleeve 12. A through hole is opened on the rotating plate 13. A connecting sleeve 31 is fixedly connected to one end of the connecting frame 3. The connecting sleeve 31 is tubular and is sleeved on the outside of the rotating sleeve 12. The inner diameter of the connecting sleeve 31 is larger than the outer diameter of the rotating sleeve 12, so that the rotating sleeve 12 can be sleeved on the connecting sleeve 31. The connecting sleeve 31 has a receiving connecting seam on one side to accommodate the rotating plate 13. Two rotating plates 32 are fixedly connected to the outer side of the connecting sleeve 31 on both sides of the receiving connecting seam. The rotating plate 13 is located between the two rotating plates 32. A rotating shaft is rotatably connected to the two rotating plates 32, and the rotating shaft also passes through a through hole on the rotating plate 13, so that the rotating plate 13 and the rotating plate 32 can rotate coaxially with each other, thereby realizing the rotational connection of the connecting sleeve 31 relative to the connecting frame 3. This further enables the connecting frame 3 to rotate relative to the front fork frame 1 around the rotating shaft, with a small range of rotation. The connecting frame 3 and the front fork frame 1 are also connected by a first shock absorber 4. One end of the first shock absorber 4 is rotatably connected to the connecting frame 3, and the other end is rotatably connected to the front fork frame 1. When the connecting frame 3 rotates relative to the front fork frame 1, the first shock absorber 4 can absorb momentum and release it slowly to achieve a shock absorption effect and increase the rider's comfort.
[0023] The first shock absorber 4 includes a first adjusting rod 41. The first end of the first adjusting rod 41 is rotatably connected to a rotating sleeve 12. The second end of the first adjusting rod 41 is threaded, and a limiting bolt is threaded onto the second end. A limiting plate is sleeved through the limiting bolt, preventing the limiting plate from detaching from the first adjusting rod 41. A first spring 42 is also sleeved on the first adjusting rod 41. The first spring 42 is blocked by the limiting bolt and the limiting plate and cannot detach from the first adjusting rod 41. A first limiting tube 43 is sleeved around the first spring 42. The inner diameter of the limiting tube 43 is larger than the outer diameter of the first spring 42. The end of the first limiting tube 43 near the fork 1 is semi-closed, and the hole on it only allows the first adjusting rod 41 to pass through, but not the first spring 42, thus preventing the first spring 42 from passing through. The first limiting tube 43 is rotatably connected to the connecting frame 3, thus connecting the first spring 42 between the fork 1 and the connecting frame 3. When rotation occurs between the fork 1 and the connecting frame 3, the energy can be absorbed by the first spring 42 and then slowly released, achieving a shock absorption effect. The first shock absorption device 4 also includes a first limiting post 44, which is threaded to the outer surface of the first limiting tube 43. The other end of the first limiting post 44 abuts against the bottom end of the connecting frame 3 to prevent the fork 1 and the connecting frame 3 from rotating excessively under the action of the first shock absorption device 4.
[0024] A rear fork 2 is rotatably connected to the connecting frame 3. A second shock absorber 5 is provided on the upper side of the connection point between the connecting frame 3 and the rear fork 2, and a third shock absorber 6 is provided on the lower side of the connection point. The second shock absorber 5 and the third shock absorber 6 are respectively located on both sides of the connection point. When the connecting frame 3 and the rear fork 2 rotate relative to each other, the two shock absorbers cooperate to convert energy, thereby absorbing energy through the springs in the two shock absorbers, reducing bumps, enhancing user comfort, and preventing damage to the fixed connection position of the frame due to bumps.
[0025] The second shock absorber 5 includes a telescopic rod 51, with limit blocks 52 fixedly connected to both ends of the telescopic rod 51. A second spring 53 is provided between the two limit blocks 52, and the second spring 53 is sleeved on the telescopic rod 51. The two ends of the second spring 53 are respectively fixedly connected to the two limit blocks 52. One limit block 52 is rotatably connected to the connecting frame 3, and the other limit block 52 is rotatably connected to the rear fork 2. When the connecting frame 3 and the rear fork 2 rotate relative to each other, the distance between the two limit blocks 52 will change, and the second spring 53 between the two limit blocks 52 can absorb energy and reduce the vibration caused by rotation. The connecting frame 3 has two through holes for connecting to the limit blocks near the connecting frame 3. Connecting the limit blocks to different through holes can adjust the vehicle's state, allowing it to switch between two functions: good passability and effortless riding.
[0026] The structure of the third shock absorber 6 is the same as that of the first shock absorber 4. Specifically, the third shock absorber 6 includes a third adjusting rod 61. The first end of the third adjusting rod 61 is rotatably connected to the connecting frame 3. The second end of the third adjusting rod 61 is threaded and a limiting bolt is threadedly connected to the second end of the third adjusting rod 61. A third spring 62 is also sleeved on the third adjusting rod 61. The third spring 62 is blocked by the limiting bolt and cannot detach from the third adjusting rod 61. A third limiting tube 63 is sleeved on the third spring 62 and is rotatably connected to the rear fork 2. The inner diameter of the third limiting tube 63 is larger than the outer diameter of the first spring 42. The end of the third limiting tube 63 near the connecting frame 3 is in a semi-closed state. The hole opened on it can only allow the third adjusting rod 61 to pass through, but not the third spring 62, thus preventing the third spring 62 from passing through. This also slows down the rotation of the connecting frame 3 and the rear fork 2. The third damping device 6 also includes a third limiting post 64. The third limiting post 64 is threaded to the outer surface of the third limiting tube 63. The other end of the first third limiting post abuts against the rear fork 2, which can prevent the connecting frame 3 and the rear fork 2 from rotating excessively under the action of the third damping device 6.
[0027] Through the coordinated action of the first shock absorber 4, the second shock absorber 5, and the third shock absorber 6, when riding over steps or uneven surfaces, the front or rear wheel, after being suspended in the air, impacts the ground. This impact causes stress between the front fork 1 and the connecting frame 3. The first shock absorber 4 converts the impact into compression of the first spring 42, which then extends to restore the front fork 1 and the connecting frame 3 to their initial angle. This reduces damage to the frame and also minimizes injury to the rider. Similarly, the impact also acts on the connecting frame 3 and the rear suspension, as the human body... The weight is transferred to the frame via the seat on the connecting frame 3. As the vehicle is suspended in the air and lands, the impact will cause the connecting frame 3 and the rear fork to rotate, causing the upper part of the rear fork 2 to rotate closer to the connecting frame 3. At this time, the second spring 53 will be compressed and the third spring 62 will be stretched. After the impact, the second spring 53 and the third spring 62 will restore the rear fork 2 and the connecting frame 3 to their initial angle under the action of their elastic force. The impact kinetic energy is converted into the elastic potential energy of the spring, which can reduce the impact on the rider in multiple directions and give the rider a more comfortable riding experience.
[0028] Except for the technical features described in the specification, all other technologies are known to those skilled in the art.
[0029] In this utility model, "upper", "lower", "left", "right", "front" and "back" are relative positions used to facilitate the description of positional relationships, and therefore cannot be understood as absolute positions as a limitation on the scope of protection.
[0030] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, all of which should fall within the protection scope of this utility model.
Claims
1. A shock-absorbing mountain bike frame, characterized in that, The vehicle includes a frame, which includes a front fork frame. A rotating sleeve is fitted onto the front fork frame, and a connecting frame is rotatably connected to the rotating sleeve. The connecting frame and the front fork frame are also connected by a first shock absorber. A rear fork frame is rotatably connected to the connecting frame. A second shock absorber is provided on one side of the connection point between the connecting frame and the rear fork frame, and a third shock absorber is provided on the other side.
2. The shock-absorbing mountain bike frame according to claim 1, characterized in that, Two limiting rings are fixedly connected to the front fork frame, and the rotating sleeve is sleeved and connected to the front fork frame, with the rotating sleeve located between the two limiting rings.
3. The shock-absorbing mountain bike frame according to claim 2, characterized in that, A rotating plate is fixedly connected to the side of the rotating sleeve, and a connecting sleeve is fixedly connected to one end of the connecting frame. The connecting sleeve is sleeved and connected to the outside of the rotating sleeve. A connecting seam is opened on the side of the connecting sleeve away from the connecting frame. The rotating plate is located in the connecting seam. A rotating plate is fixedly connected to both sides of the connecting seam on the connecting sleeve. A rotating shaft is rotatably connected to the rotating plate. The rotating shaft also passes through the rotating plate.
4. The shock-absorbing mountain bike frame according to claim 1, characterized in that, The first shock absorber includes a first adjusting rod, the first end of which is rotatably connected to a rotating sleeve, and the second end of which is threadedly connected to a limiting bolt. A first spring is also sleeved on the first adjusting rod, and the first spring is blocked by the limiting bolt. A first limiting tube is sleeved on the first spring, and the end of the first limiting tube near the front fork frame can prevent the first spring from passing through. The first limiting tube is rotatably connected to the connecting frame.
5. A shock-absorbing mountain bike frame according to claim 4, characterized in that, The outer side of the first limiting tube is threaded with a first limiting post, and the other end of the first limiting post rests against the bottom end of the connecting frame.
6. A shock-absorbing mountain bike frame according to claim 1, characterized in that, The second shock absorption device includes a telescopic rod, with limit blocks fixedly connected to both ends of the telescopic rod. A second spring is provided between the two limit blocks, and the second spring is sleeved on the telescopic rod. One limit block is rotatably connected to the connecting frame, and the other limit block is rotatably connected to the rear fork frame.
7. A shock-absorbing mountain bike frame according to claim 5, characterized in that, The structure of the third shock absorber is the same as that of the first shock absorber.
8. A shock-absorbing mountain bike frame according to claim 6, characterized in that, The connecting frame has several through holes for connecting with the limiting block.