A shock-absorbing bicycle hub buffer assembly

Abstract

This utility model discloses a shock-absorbing and buffering bicycle hub shock-absorbing assembly, relating to the field of bicycle hub technology. The utility model includes: a hub shaft, one end of which is fixedly connected to a left support frame, and the other end of which is fixedly connected to a right support frame. A fixing block is fixedly connected to the inner side wall of the hub shaft, and a shock-absorbing device is provided on the side of the left support frame. This utility model utilizes the cooperation of a mounting block and a shock-absorbing spring in the shock-absorbing device. When the bicycle encounters bumps, the external force is transmitted to the support plate through the component connected to the mounting block, which in turn drives a sliding block to slide upwards along the support rod. When the sliding block moves upwards, it compresses the top shock-absorbing spring, causing the spring to elastically deform and absorb the impact force through deformation. It employs a triple structure of shock-absorbing spring, compression spring, and hydraulic shock-absorbing rod, which can absorb high-frequency small-amplitude vibrations and low-frequency large-amplitude impacts respectively, significantly improving riding comfort.

Description

Technical Field

[0001] This utility model belongs to the field of bicycle hub technology, and in particular relates to a shock-absorbing and buffering bicycle hub buffer assembly. Background Technology

[0002] Hub damping systems are designed to improve riding comfort and reduce the impact of road shocks on the wheels. Hub damping devices typically use springs, rubber pads, or other shock-absorbing materials to effectively absorb and disperse vibrations and impacts from the ground.

[0003] In existing technologies, shock-absorbing bicycle hub buffers rely solely on elastic elements to store energy, without designing a damping structure to dissipate impact energy. This can lead to high-frequency resonance in the hub after an impact. Since the hub and frame are purely rigid, the impact bypasses the buffer element and is directly transmitted to the bike, causing the buffer element to spin freely. Therefore, we propose a shock-absorbing bicycle hub buffer assembly. Utility Model Content

[0004] The purpose of this invention is to provide a shock-absorbing bicycle hub buffer assembly. By cooperating with components such as mounting blocks and shock-absorbing springs, it solves the problem of existing components being able to more comprehensively adapt to vibration energy and impact under different road conditions.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a shock-absorbing and buffering bicycle hub buffer assembly, including: a hub shaft, one end of which is fixedly connected to a left support frame, the other end of which is fixedly connected to a right support frame, a fixing block fixedly connected to the inner side wall of the hub shaft, and a shock-absorbing device provided on the side of the left support frame.

[0007] The shock absorption device includes a support plate, the side of which is fixedly connected to the side of the left support frame, a fixed seat fixedly connected to the top of the support plate, a support rod fixedly connected to the top of the fixed seat, a top plate fixedly connected to the end of the support rod away from the fixed seat, the side of the top plate fixedly connected to the side of the left support frame, a sliding block slidably connected to the circumferential surface of the support rod, a shock-absorbing spring elastically connected to the top of the sliding block, one end of the shock-absorbing spring fixedly connected to the bottom of the top plate, and a cross plate fixedly connected to the side of the sliding block.

[0008] Furthermore, a support plate is fixedly connected to the side of the sliding block, and a mounting block is fixedly connected to the top of the support plate. The sliding block connects to the support plate and is equipped with a mounting block, which facilitates quick connection and fixation of the component to other parts of the bicycle, improving installation convenience and connection firmness.

[0009] Furthermore, a hydraulic shock absorber rod is rotatably connected to the inner wall of the fixing block. One end of the hydraulic shock absorber rod is fixedly connected to a bearing, and the circumferential surface of the bearing is rotatably connected to the side of the left support frame. The fixing block, in conjunction with the hydraulic shock absorber rod and the bearing, can further enhance the shock absorption effect and reduce the transmission of vibrations during riding.

[0010] Furthermore, the support plate has a slot on its side, and there are two support rods and damping springs, which are symmetrical about each other along the vertical central axis of the support plate. The slot design of the support plate enhances the connection stability, and the symmetrical arrangement of the support rods and damping springs ensures uniform force distribution, improving the overall structural balance and damping consistency of the component.

[0011] Furthermore, a spring adjustment device is provided on the top of the support plate. The spring adjustment device includes a hydraulic adjustment rod, the bottom of which is fixedly connected to the top of the support plate. A support column is slidably connected to the top of the hydraulic adjustment rod. A compression spring is fixedly connected to the top of the hydraulic adjustment rod. One end of the compression spring is fixedly connected to the bottom of the horizontal plate. An adjustment screw is rotatably connected to the top of the support plate. A threaded sleeve is threaded onto the circumferential surface of the adjustment screw. The top of the threaded sleeve is engaged with the bottom of the compression spring.

[0012] Furthermore, the end of the adjusting screw furthest from the screw sleeve passes through and is rotatably connected to the bottom of the top plate, and an adjusting handle is fixedly connected to the end of the adjusting screw furthest from the screw sleeve. The adjusting screw connects to the adjusting handle and passes through the top plate, allowing the user to manually adjust the spring pressure, thus improving the ease of operation.

[0013] Furthermore, a protective cover is fixedly connected to the side of the left support frame, and the bottom of the horizontal plate is located on the displacement trajectory of the compression spring. The protective cover of the left support frame can protect the internal components from dust and impurities, extending their service life. The horizontal plate, located on the displacement trajectory of the compression spring, can precisely adjust the spring pressure.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model's shock absorption device, through the cooperation of mounting blocks and shock-absorbing springs, allows external force to be transmitted to the support plate when the bicycle encounters bumps, via components connected to the mounting blocks. This, in turn, causes the sliding block to slide upwards along the support rod. As the sliding block moves upwards, it compresses the top shock-absorbing spring, causing it to elastically deform and absorb the impact force. Its structure, employing shock-absorbing springs, compression springs, and hydraulic shock-absorbing rods, can absorb both high-frequency, low-amplitude vibrations and low-frequency, high-amplitude impacts. Compared to a single shock absorption method, it can more comprehensively adapt to the vibration energy of different road conditions, significantly improving riding comfort.

[0016] 2. In the spring adjustment device of this utility model, the adjusting screw passes through the top plate and is threadedly connected to the screw sleeve to form a threaded transmission pair. When the adjusting handle is rotated, the screw rotates and drives the screw sleeve to move axially, directly changing the initial compression amount of the compression spring. The compression spring is nested outside the hydraulic adjusting rod, with its lower end engaged with the screw sleeve and its upper end in contact with the horizontal plate. The damping characteristics of the hydraulic oil inside the hydraulic adjusting rod can slow down the compression and rebound speed of the spring and avoid sudden changes in force.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a structural schematic diagram of the overall appearance of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal hydraulic shock absorber rod of the hub shaft of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the shock absorption device of this utility model;

[0022] Figure 4 This is a schematic diagram of the spring adjusting device of this utility model;

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Hub shaft; 2. Left support frame; 3. Right support frame; 4. Fixing block; 5. Hydraulic damping rod; 7. Damping device; 8. Spring adjusting device; 9. Bearing; 10. Protective cover; 11. Top plate; 71. Support plate; 72. Support rod; 73. Sliding block; 74. Damping spring; 75. Horizontal plate; 76. Bracket plate; 77. Fixing seat; 78. Mounting clip; 81. Hydraulic adjusting rod; 82. Support column; 83. Compression spring; 85. Adjusting screw; 86. Screw sleeve; 88. Adjusting handle. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model is a shock-absorbing and buffering bicycle hub buffer assembly, including: hub shaft 1, a left support frame 2 fixedly connected to one end of hub shaft 1, a right support frame 3 fixedly connected to the other end of hub shaft 1, a fixing block 4 fixedly connected to the inner side wall of hub shaft 1, and a shock-absorbing device 7 provided on the side of the left support frame 2.

[0027] The shock absorption device 7 includes a support plate 71, the side of which is fixedly connected to the side of the left support frame 2. A fixed seat 77 is fixedly connected to the top of the support plate 71. A support rod 72 is fixedly connected to the top of the fixed seat 77. A top plate 11 is fixedly connected to the end of the support rod 72 away from the fixed seat 77. The side of the top plate 11 is fixedly connected to the side of the left support frame 2. A sliding block 73 is slidably connected to the circumferential surface of the support rod 72. A shock-absorbing spring 74 is elastically connected to the top of the sliding block 73. One end of the shock-absorbing spring 74 is fixedly connected to the bottom of the top plate 11. A horizontal plate 75 is fixedly connected to the side of the sliding block 73.

[0028] As shown in the figure, a bracket plate 76 is fixedly connected to the side of the sliding block 73, and a mounting block 78 is fixedly connected to the top of the bracket plate 76. The sliding block 73 connects to the bracket plate 76 and is equipped with the mounting block 78, which facilitates quick connection and fixation of the component with other parts of the bicycle, improving installation convenience and connection firmness.

[0029] As shown in the figure, a hydraulic shock absorber rod 5 is rotatably connected to the inner wall of the fixing block 4. One end of the hydraulic shock absorber rod 5 is fixedly connected to a bearing 9, and the circumferential surface of the bearing 9 is rotatably connected to the side of the left support frame 2. The fixing block 4, together with the hydraulic shock absorber rod 5 and the bearing 9, can further enhance the shock absorption effect and reduce the transmission of vibrations during riding.

[0030] As shown in the figure, the side of the support plate 76 has a slot, and there are two support rods 72 and two damping springs 74, which are symmetrical about each other along the vertical central axis of the support plate 71. The slot design of the support plate 76 enhances the connection stability, and the symmetrical arrangement of the support rods 72 and damping springs 74 ensures uniform force distribution, improving the overall structural balance and damping consistency of the component.

[0031] As shown in the figure, a spring adjusting device 8 is provided on the top of the support plate 71. The spring adjusting device 8 includes a hydraulic adjusting rod 81. The bottom of the hydraulic adjusting rod 81 is fixedly connected to the top of the support plate 71. A support column 82 is slidably connected to the top of the hydraulic adjusting rod 81. A compression spring 83 is fixedly connected to the top of the hydraulic adjusting rod 81. One end of the compression spring 83 is fixedly connected to the bottom of the horizontal plate 75. An adjusting screw 85 is rotatably connected to the top of the support plate 71. A threaded sleeve 86 is threadedly connected to the circumferential surface of the adjusting screw 85. The top of the threaded sleeve 86 is engaged with the bottom of the compression spring 83.

[0032] As shown in the figure, the end of the adjusting screw 85 away from the screw sleeve 86 passes through and is rotatably connected to the bottom of the top plate 11, and the end of the adjusting screw 85 away from the screw sleeve 86 is fixedly connected to the adjusting handle 88. The adjusting screw 85 is connected to the adjusting handle 88 and passes through the top plate 11. The adjusting handle 88 allows the user to manually adjust the spring pressure, improving the convenience of operation.

[0033] As shown in the figure, a protective cover 10 is fixedly connected to the side of the left support frame 2, and the bottom of the horizontal plate 75 is located on the displacement trajectory of the compression spring 83. The protective cover 10 of the left support frame 2 can protect the internal components from dust and impurities, extending their service life. The horizontal plate 75 is located on the displacement trajectory of the compression spring 83, allowing for precise adjustment of the spring pressure.

[0034] One specific application of this embodiment is: when the bicycle encounters a bump, the external force is transmitted to the bracket plate 76 through the wheel or frame connector connected to the mounting block 78, which in turn drives the sliding block 73 to slide upward along the support rod 72. When the sliding block 73 moves upward, it compresses the top shock-absorbing spring 74, causing the shock-absorbing spring 74 to undergo elastic deformation. This deformation absorbs some of the impact force, achieving initial buffering. As the sliding block 73 slides, it drives the horizontal plate 75 to move downward simultaneously, compressing the compression spring 83 in the spring adjustment device 8. The compression spring 83 further deforms, using its elastic potential energy to absorb the remaining impact force, forming a buffer with the shock-absorbing spring 74 and enhancing the shock absorption effect. When the horizontal plate 75 moves downward, the hydraulic adjustment rod 81 extends and retracts synchronously under force, using the damping characteristics of hydraulic oil to consume some of the impact energy. At the same time, when the left support frame 2 shakes under force, the hydraulic shock-absorbing rod 5 on the fixed block 4 extends and retracts with the shaking through the bearing 9. The viscous resistance of the hydraulic oil inside further absorbs the vibration energy, reducing the amplitude of component shaking. This forms a synergistic damping effect with the spring device, improving shock absorption stability. It can absorb high-frequency small-amplitude vibrations and low-frequency large-amplitude impacts respectively. Compared with a single shock absorption method, it can more comprehensively resolve the vibration energy of different road conditions, significantly improving riding comfort.

[0035] The adjusting screw 85 in the spring adjusting device 8 passes through the top plate 11 and is threadedly connected to the screw sleeve 86, forming a threaded transmission pair. When the adjusting handle 88 is rotated, the screw rotates, driving the screw sleeve 86 to move axially, directly changing the initial compression of the compression spring 83. The compression spring 83 is nested outside the hydraulic adjusting rod 81, with its lower end engaged with the screw sleeve 86 and its upper end in contact with the horizontal plate 75. The damping characteristics of the hydraulic oil inside the hydraulic adjusting rod 81 can slow down the spring compression rebound speed. When the screw sleeve 86 moves upward, the compression spring 83 is further compressed, increasing the initial preload, which is suitable for heavy loads or bumpy roads; when the screw sleeve 86 moves downward, the spring preload decreases, which is suitable for light loads or flat roads. The rotation angle of the adjusting handle 88 is linearly related to the change in preload. The spring compression can be precisely controlled by adjusting the pitch of the screw 85, providing multi-level stiffness adaptation and covering a wide range of scenarios.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A shock-absorbing and buffering bicycle hub buffer assembly, characterized in that, include: Hub shaft (1), one end of which is fixedly connected to a left support frame (2), the other end of which is fixedly connected to a right support frame (3), a fixing block (4) is fixedly connected to the inner side wall of the hub shaft (1), and a shock-absorbing device (7) is provided on the side of the left support frame (2). The shock absorption device (7) includes a support plate (71), the side of the support plate (71) is fixedly connected to the side of the left support frame (2), the top of the support plate (71) is fixedly connected to a fixed seat (77), the top of the fixed seat (77) is fixedly connected to a support rod (72), the end of the support rod (72) away from the fixed seat (77) is fixedly connected to a top plate (11), the side of the top plate (11) is fixedly connected to the side of the left support frame (2), the circumferential surface of the support rod (72) is slidably connected to a sliding block (73), the top of the sliding block (73) is elastically connected to a shock absorption spring (74), one end of the shock absorption spring (74) is fixedly connected to the bottom of the top plate (11), and the side of the sliding block (73) is fixedly connected to a horizontal plate (75).

2. The shock-absorbing and buffering bicycle hub buffer assembly according to claim 1, characterized in that, A bracket plate (76) is fixedly connected to the side of the sliding block (73), and an mounting block (78) is fixedly connected to the top of the bracket plate (76).

3. The shock-absorbing and buffering bicycle hub buffer assembly according to claim 2, characterized in that, The inner wall of the fixed block (4) is rotatably connected to a hydraulic shock absorber (5), and one end of the hydraulic shock absorber (5) is fixedly connected to a bearing (9). The circumferential surface of the bearing (9) is rotatably connected to the side of the left support frame (2).

4. The shock-absorbing and buffering bicycle hub buffer assembly according to claim 3, characterized in that, The side of the support plate (76) is provided with a slot, and there are two of the support rods (72) and shock absorber springs (74), which are symmetrical to each other along the vertical central axis of the support plate (71).

5. A shock-absorbing bicycle hub buffer assembly according to claim 4, characterized in that, The top of the support plate (71) is provided with a spring adjustment device (8), which includes a hydraulic adjustment rod (81). The bottom of the hydraulic adjustment rod (81) is fixedly connected to the top of the support plate (71), and the top of the hydraulic adjustment rod (81) is slidably connected to a support column (82). The top of the hydraulic adjustment rod (81) is fixedly connected to a compression spring (83), one end of the compression spring (83) is fixedly connected to the bottom of the horizontal plate (75), and the top of the support plate (71) is rotatably connected to an adjustment screw (85). The circumferential surface of the adjustment screw (85) is threadedly connected to a screw sleeve (86), and the top of the screw sleeve (86) is engaged with the bottom of the compression spring (83).

6. A shock-absorbing and buffering bicycle hub buffer assembly according to claim 5, characterized in that, The end of the adjusting screw (85) away from the screw sleeve (86) passes through and is rotatably connected to the bottom of the top plate (11), and the end of the adjusting screw (85) away from the screw sleeve (86) is fixedly connected to an adjusting handle (88).

7. A shock-absorbing bicycle hub buffer assembly according to claim 6, characterized in that, The left support frame (2) is fixedly connected to a protective cover (10) on its side, and the bottom of the horizontal plate (75) is located on the displacement trajectory of the compression spring (83).

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