Lightweight electric bicycle front fork bearing structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-21
- Publication Date
- 2026-08-11
AI Technical Summary
这种设计虽然稳固,但使用的材料多、重量大,不符合电动自行车轻量化发展的趋势,增加了整车重量,影响续航和操控灵活性
本实用新型采用单连接杆取代传统的双叉腿结构,显著减少了前叉整体的材料用量和重量,在单连接杆前端的转动座内设置双轴承支撑转动杆,提供稳定且低摩擦的转动性能。
Smart Images

Figure CN224617896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an electric bicycle, specifically to a lightweight electric bicycle front fork bearing structure. Background Technology
[0002] Traditional electric bicycles generally use a double fork structure (two forks on the left and right). While this design is sturdy, it uses more materials and is heavier, which does not conform to the trend of lightweight development of electric bicycles. It increases the overall weight of the vehicle and affects its range and handling agility.
[0003] Traditional fork-wheel connection methods are usually complicated to disassemble and assemble, requiring special tools, which is inconvenient for users or maintenance personnel to quickly perform tasks such as changing tires or repairing brakes. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a lightweight electric bicycle front fork bearing structure to solve the problems existing in the background art.
[0005] The lightweight electric bicycle front fork bearing structure of this utility model is achieved through the following technical solution, including the front fork body and the front wheel; The front fork body is provided with a single connecting rod, and the single connecting rod is provided with a bearing rotation structure, and the bearing rotation structure is connected to the front wheel through a rotation structure; a disc brake is provided at the single connecting rod of the front fork body, and the disc brake is positioned corresponding to the disc brake disc of the front wheel.
[0006] As a preferred technical solution, the bearing rotation structure includes a rotating seat and a rotating rod disposed at the front end of the single connecting rod; The rotating rod is rotatably mounted in the rotating seat via the first and second bearings, and the other end of the rotating rod is connected to the front wheel via a plug-in structure and locked with a spline screw, thereby realizing the connection between the rotating rod and the front wheel.
[0007] As a preferred technical solution, the plug-in structure includes a plug-in block disposed at the other end of the rotating rod and a plug-in groove disposed at the connection position of the front wheel, wherein the plug-in block of the rotating rod is inserted into the plug-in groove of the front wheel and is locked and fixed by a spline screw.
[0008] As a preferred technical solution, oil seals are provided at both the first and second bearings; a dust cover is provided at one end of the rotating rod, and the dust cover is fixed to one end of the rotating seat.
[0009] As a preferred technical solution, mudguards are also provided on the front fork body, and when the front wheel is installed, the mudguards are positioned corresponding to the front wheel.
[0010] As a preferred technical solution, a headlight is also installed at the front end of the fork body.
[0011] The beneficial effects of this utility model are: This invention uses a single connecting rod to replace the traditional double fork structure, which significantly reduces the amount of material and weight of the fork. A double bearing is set in the rotating seat at the front end of the single connecting rod to support the rotating rod, providing stable and low-friction rotation performance.
[0012] This utility model uses a plug-in structure between the rotating rod and the front wheel, secured with spline screws, resulting in a firm and reliable connection. It is also relatively easy to assemble and disassemble, facilitating the installation, removal, and maintenance of the front wheel. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the exploded structure of this utility model.
[0015] Explanation of reference numerals in the attached figures 1. Front fork body; 2. Front wheel; 3. Single connecting rod; 4. Rotating seat; 5. Rotating rod; 6. First bearing; 7. Second bearing; 8. Spline screw; 9. Connector block; 10. Connector slot; 11. Oil seal; 12. Mudguard; 13. Disc brake; 14. Dust cover; 15. Headlight. Detailed Implementation
[0016] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.
[0017] like Figures 1-2 As shown, the present invention provides a lightweight electric bicycle front fork bearing structure, including a front fork body 1 and a front wheel 2. The front fork body 1 is provided with a single connecting rod 3, and the single connecting rod 3 is provided with a bearing rotation structure, and the bearing rotation structure is connected to the front wheel 2 through the rotation structure; a disc brake 13 is provided at the single connecting rod 3 of the front fork body 1, and the disc brake 13 corresponds to the position of the disc brake disc of the front wheel 2.
[0018] The bearing rotation structure includes a rotating seat 4 and a rotating rod 5 located at the front end of the single connecting rod 3. The rotating rod 5 is rotatably mounted in the rotating seat 4 via the first bearing 6 and the second bearing 7, and the other end of the rotating rod 5 is connected to the front wheel 2 via a plug-in structure and locked by a spline screw 8, thereby realizing the connection between the rotating rod 5 and the front wheel 2.
[0019] In order to achieve the effect of plug-in fixation, in this embodiment, the plug-in structure includes a plug-in block 9 disposed at the other end of the rotating rod 5 and a plug-in groove 10 disposed at the connection position of the front wheel 2. The plug-in block 9 of the rotating rod 5 is inserted into the plug-in groove 10 of the front wheel 2 and locked and fixed by spline screws 8.
[0020] Oil seals 11 are provided at both the first bearing 6 and the second bearing 7; a dust cover 14 is provided at one end of the rotating rod 5, and the dust cover 14 is fixed to one end of the rotating seat 4.
[0021] In order to serve as a mudguard, in this embodiment, a mudguard 12 is also provided on the front fork body 1. When the front wheel 2 is installed, the mudguard 12 is positioned corresponding to the front wheel 2.
[0022] In order to provide illumination, a headlight 15 is also provided at the front end of the fork body 1 in this embodiment.
[0023] This invention uses a single connecting rod to replace the traditional double fork structure, which significantly reduces the overall material usage and weight of the fork. A double bearing is installed in the rotating seat at the front end of the single connecting rod to support the rotating rod, providing stable and low-friction rotation performance. The rotating rod is connected to the front wheel by a plug-in structure and locked with spline screws, which makes the connection firm and reliable. At the same time, it is relatively easy to disassemble and assemble, which facilitates the installation, disassembly and maintenance of the front wheel.
[0024] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A lightweight electric bicycle front fork bearing structure, characterized in that, Includes the front fork body (1) and the front wheel (2); The fork body (1) is provided with a single connecting rod (3), and the single connecting rod (3) is provided with a bearing rotation structure, and the bearing rotation structure is connected to the front wheel (2) through the rotation structure; a disc brake (13) is provided at the single connecting rod (3) of the fork body (1), and the disc brake (13) is corresponding to the disc brake disc of the front wheel (2).
2. The lightweight electric bicycle front fork bearing structure according to claim 1, characterized in that: The bearing rotation structure includes a rotating seat (4) and a rotating rod (5) disposed at the front end of the single connecting rod (3); The rotating rod (5) is rotatably mounted in the rotating seat (4) via the first bearing (6) and the second bearing (7), and the other end of the rotating rod (5) is connected to the front wheel (2) via a plug-in structure and locked by a spline screw (8), thereby realizing the connection between the rotating rod (5) and the front wheel (2).
3. The lightweight electric bicycle front fork bearing structure according to claim 2, characterized in that: The plug-in structure includes a plug-in block (9) located at the other end of the rotating rod (5) and a plug-in groove (10) located at the connection position of the front wheel (2). The plug-in block (9) of the rotating rod (5) is inserted into the plug-in groove (10) of the front wheel (2) and locked in place by a spline screw (8).
4. The lightweight electric bicycle front fork bearing structure according to claim 3, characterized in that: Oil seals (11) are provided at both the first bearing (6) and the second bearing (7); a dust cover (14) is provided on one end of the rotating rod (5), and the dust cover (14) is fixed to one end of the rotating seat (4).
5. The lightweight electric bicycle front fork bearing structure according to claim 1, characterized in that: The fork body (1) is also provided with mudguards (12), and when the front wheel (2) is installed, the mudguards (12) are positioned corresponding to the front wheel (2).
6. The lightweight electric bicycle front fork bearing structure according to claim 1, characterized in that: The front fork body (1) is also equipped with a headlight (15) at the front end.