Front fork damping structure
By designing a front fork damping structure, we have achieved height adjustability, flexible steering, and stability, solving the problems of unresponsive handling and poor damping effect of existing front fork structures, thus improving the riding experience and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-04-07
AI Technical Summary
The existing front fork structure is not sensitive to handling and has poor shock absorption, making it difficult to balance height adjustment and steering stability, thus posing a safety hazard.
Design a front fork shock absorption structure, including a housing, telescopic rod, mounting bracket, bearing assembly, steering column, front fork bracket and spring. Height adjustment is achieved through the avoidance cavity, the bearing assembly ensures steering flexibility, the spring provides return torque, and the limit stop prevents oversteering.
It improves riding stability and safety, enhances handling, ensures overall structural stability, and increases service life and adaptability.
Smart Images
Figure CN224090369U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of shock absorber technology, and more specifically, to a front fork shock absorber structure. Background Technology
[0002] With increasing urban traffic congestion and the diversification of people's travel methods, light two-wheeled vehicles such as electric scooters, folding bicycles, and balance bikes are gradually becoming important choices for short-distance travel due to their portability, environmental friendliness, and ease of operation. Among these devices, the front fork, as a key component connecting the handlebars and the front wheel, bears important functions in steering, shock absorption, and overall vehicle handling stability.
[0003] Most existing front fork designs are fixed or simple telescopic designs. Their steering systems typically include a steering column, bearing assembly, and fork bracket, using the handlebars to drive the front wheel for directional control. However, in actual use, they generally suffer from insufficient handling sensitivity and poor shock absorption, affecting the user's riding experience and safety. Furthermore, some designs lack effective limiting and cushioning mechanisms, making them prone to loss of control during sharp turns or on bumpy roads.
[0004] At the same time, existing front fork structures often fail to balance height adjustment and steering stability. The telescopic adjustment mechanism and steering bearing are not tightly fitted, resulting in a loose overall structure, inaccurate steering, and even certain safety hazards.
[0005] Therefore, it is necessary to provide a front fork shock absorption structure that is structurally sound, flexible in steering, and has good shock absorption and self-centering performance in order to solve the above problems and improve the practicality of the product and the user experience. Utility Model Content
[0006] In view of this, this utility model proposes a front fork shock absorption structure to solve the technical problems of insufficient handling sensitivity and poor shock absorption effect.
[0007] This utility model provides a front fork shock absorption structure, including:
[0008] The enclosure has an internal clearance cavity;
[0009] The telescopic boom is slidably disposed within the clearance cavity along the longitudinal direction;
[0010] The fixing frame is fixedly connected to the clearance cavity;
[0011] The bearing assembly is mounted on the fixed frame;
[0012] The steering column is rotatably mounted in the bearing assembly, and its upper end is connected to the telescopic boom;
[0013] A front fork bracket for holding the front wheel, with a steering column connected to the upper end of the front fork bracket;
[0014] Springs, located on both sides of the fork bracket, are used to provide a return torque.
[0015] Preferably, a limiting block is provided at the lower end of the steering column to limit the maximum steering angle of the handlebars.
[0016] Preferably, the bearing assembly includes:
[0017] A bearing housing is disposed above the fixed frame, and the steering column passes through the bearing housing.
[0018] Preferably, the bearing housing is equipped with a double-row ball bearing or needle roller bearing to simultaneously bear radial and axial loads.
[0019] Preferably, a stop groove is provided above the top of the needle roller bearing, and the limiting stop is located in the stop groove.
[0020] Preferably, the fixing frame has a through hole at its center, and a steering column passes through the through hole.
[0021] Preferably, the side of the fork bracket is provided with an upper spring seat and a lower spring seat, and the spring passes between the upper spring seat and the lower spring seat.
[0022] Preferably, two upper spring seats are symmetrically arranged along the center of the side plate surface of the fork bracket, and two retaining rings are arranged opposite each other on the lower spring seat. Each upper spring seat contains a spring, and each spring is mounted opposite each other on the retaining ring.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] A front fork shock absorption structure with a reasonable structure and stable operation is provided. By setting an avoidance cavity in the housing, the telescopic rod can slide longitudinally to adjust its height, improving adaptability and comfort. The steering column passes through the bearing assembly to achieve flexible steering, and springs set on both sides of the front fork bracket provide return torque, enhancing the automatic return-to-center capability after steering, and improving riding stability and handling feel.
[0025] Furthermore, the fixed frame is securely connected to the clearance cavity, ensuring the overall structure is stable and reliable. The bearing assembly not only guarantees smooth steering but also improves the structure's load-bearing capacity and service life. The overall structure is simple and compact, easy to assemble and maintain, and has good practicality and market application prospects. Attached Figure Description
[0026] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:
[0027] Figure 1 This is a schematic diagram of the position and structure of the front fork shock absorption structure provided in an embodiment of the present utility model;
[0028] Figure 2 This is a schematic diagram of the internal structure of the front fork shock absorption structure provided in an embodiment of the present invention.
[0029] In the diagram: 1. Housing; 11. Clearance cavity; 2. Telescopic rod; 21. Bearing assembly; 211. Bearing seat; 212. Needle roller bearing; 22. Mounting bracket; 221. Bottom connecting plate; 222. Side connecting plate; 3. Front wheel; 31. Steering column; 311. Limit stop; 32. Front fork bracket; 321. Upper spring seat; 322. Lower spring seat; 33. Spring; 34. Locking nut; 4. Handlebar. Detailed Implementation
[0030] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.
[0031] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0032] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0033] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0034] See Figure 1-2 As shown, this utility model provides a front fork shock absorption structure, including a housing 1, with an abutment cavity 11 inside the housing 1; a telescopic rod 2, which is slidably disposed longitudinally within the abutment cavity 11 to achieve overall vehicle height adjustment to meet the needs of users of different heights; a fixed frame 22, which is fixedly connected to the abutment cavity 11 to support the bearing assembly 21 and the steering column 31; the bearing assembly 21, disposed on the fixed frame 22, includes a bearing seat 211 and a needle roller bearing 212, to support and guide the rotation of the steering column 31; the steering column 31, which is rotatably disposed in the bearing assembly 21, with its upper end connected to the telescopic rod 2 and its lower end connected to the front fork bracket 32; the front fork bracket 32, which is used to hold the front wheel 3, with the steering column 31 connected to its upper end.
[0035] Specifically, the above structural design enables the vehicle to be height adjustable, improving its adaptability and comfort. At the same time, the bearing assembly 21, in conjunction with the steering column 31, ensures flexible and stable steering. The fork bracket 32, combined with the spring 33, enhances the riding feel and stability.
[0036] In a preferred embodiment, the fixing frame 22 includes a bottom connecting plate 221 and a side connecting plate 222 for stable connection with the clearance cavity 11.
[0037] In a preferred embodiment, a limit stop 311 is provided at the lower end of the steering column 31 to limit the maximum steering angle of the handlebars. When the steering angle reaches a preset limit, the limit stop 311 contacts the frame, preventing further rotation and avoiding mechanical damage or safety hazards caused by oversteering. The limit stop 311 is located in the stop groove at the top of the needle roller bearing 212, ensuring that it rotates synchronously with the steering column and can accurately trigger the limiting action.
[0038] Specifically, the design of the limit block 311 effectively prevents the risk of loss of steering control due to oversteering, and improves the safety performance of the whole vehicle; the setting of the block groove further ensures the positional accuracy and response reliability of the limit device.
[0039] The bearing assembly 21 includes a bearing housing 211 and a needle roller bearing 212. The bearing housing 211 is positioned above the fixed frame 22, and the steering column 31 passes through the bearing housing 211 to achieve smooth rotation. In a more preferred embodiment, the needle roller bearing 212 can be replaced with a double-row ball bearing to simultaneously withstand radial and axial loads, thereby improving structural stability and load-bearing capacity.
[0040] Specifically, using a combination of needle roller bearings or double-row ball bearings not only ensures the low friction and high sensitivity characteristics of the steering system, but also enhances the load-bearing capacity and service life of the overall structure, improving the durability and reliability of the product.
[0041] The mounting bracket 22 has a through hole in the center for the steering column 31 to pass through, and forms a stable frame structure with the bottom connecting plate 221 and the side connecting plate 212 to ensure the assembly strength and stability between the bearing assembly 21 and the steering column 31. The front fork bracket 32 has an upper spring seat 321 and a lower spring seat 322 on its side, and a spring 33 passes between the upper spring seat 321 and the lower spring seat 322 to provide the return torque.
[0042] Specifically, the structural design of the fixed bracket 22 enhances the overall rigidity and prevents structural loosening caused by uneven force; the cooperation between the spring seat and the spring effectively improves the automatic return-to-center capability after steering, thus improving the user's operating experience.
[0043] In a preferred embodiment, two upper spring seats 321 are symmetrically arranged along the center of the side plate surface of the fork bracket 32, and two retaining rings are arranged opposite each other on the lower spring seat 322. Each upper spring seat 321 has a spring 33 installed inside, and each spring 33 abuts against the corresponding retaining ring, forming a stable bidirectional support structure.
[0044] Specifically, the symmetrically arranged spring structure not only improves the uniformity of the return torque, but also enhances the system's resistance to deviation under complex road conditions, thereby further improving the stability and safety of vehicle driving.
[0045] In a preferred embodiment, the side plates of the front fork bracket 32 are fixed to both sides of the front wheel 3 by locking nuts 34.
[0046] In summary, this utility model provides a front fork shock absorption structure with a reasonable structure and stable operation. The height is adjustable through the cooperation of the housing 1 and the clearance cavity 11 with the telescopic handlebar 2, improving adaptability and comfort. The steering column 31 passes through the bearing assembly 21, enabling flexible steering. Springs 33 on both sides of the front fork bracket 32 provide a return torque, enhancing the automatic return-to-center capability after steering and improving riding stability and handling. Furthermore, the fixed frame 22 is fixedly connected to the clearance cavity 11, ensuring the overall structure is stable and reliable. The bearing assembly 21 not only ensures smooth steering but also improves the structure's load-bearing capacity and service life. The overall structure is simple and compact, easy to assemble and maintain, and has good practicality and market application prospects.
[0047] It will be understood by those skilled in the art that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A front fork shock absorption structure, characterized in that, include: The enclosure has an internal clearance cavity; The telescopic boom is slidably disposed within the clearance cavity along the longitudinal direction; The fixing frame is fixedly connected to the clearance cavity; The bearing assembly is mounted on the fixed frame; The steering column is rotatably mounted in the bearing assembly, and its upper end is connected to the telescopic boom; A front fork bracket for holding the front wheel, with a steering column connected to the upper end of the front fork bracket; Springs, located on both sides of the fork bracket, are used to provide a return torque.
2. The front fork shock absorption structure according to claim 1, characterized in that, A limiting stop is provided at the lower end of the steering column to limit the maximum steering angle of the handlebars.
3. The front fork shock absorption structure according to claim 2, characterized in that, The bearing assembly includes: A bearing housing is disposed above the fixed frame, and the steering column passes through the bearing housing.
4. The front fork shock absorption structure according to claim 3, characterized in that, The bearing housing is equipped with a double-row ball bearing or needle roller bearing to simultaneously withstand radial and axial loads.
5. The front fork shock absorption structure according to claim 4, characterized in that, A stop groove is provided above the top of the needle roller bearing, and the limiting stop is located in the stop groove.
6. The front fork shock absorption structure according to claim 5, characterized in that, The fixed frame has a through hole at its center, and a steering column passes through the through hole.
7. The front fork shock absorption structure according to claim 6, characterized in that, The front fork bracket has an upper spring seat and a lower spring seat on its side, and the spring passes between the upper spring seat and the lower spring seat.
8. The front fork shock absorption structure according to claim 7, characterized in that, Two upper spring seats are symmetrically arranged along the center of the side plate surface of the fork bracket, and two retaining rings are arranged opposite each other on the lower spring seat. Each upper spring seat contains a spring, and each spring is mounted opposite each other on the retaining ring.