Damping mechanism of electric power-assisted bicycle

Abstract

The damping mechanism comprises a front fork support, the front fork support comprises two stand columns, a rotating frame, a damping piece and a rotating rod, a front wheel is arranged on the lower portions of the two stand columns through a rotating shaft, one end of the rotating frame is rotatably arranged on the upper portions of the two stand columns, and the other end of the rotating frame is arranged on the damping piece. The other end of the rotating frame is rotatably arranged at the rotating rod, the lower portion of the damping part is rotatably arranged on the rotating frame, the upper portion of the damping part is rotatably arranged on the rotating rod, the damping part, the rotating rod and the rotating frame form a triangular structure, and the shape of a triangle is changed when the length is changed through stress and release of the damping part. Through the triangular structure formed by the damping piece, the rotating rod and the rotating frame, the rotating rod is rotatably connected to the bicycle body support of the electric power-assisted bicycle, and the stable damping function of the front wheel is achieved; meanwhile, the stand column is independently arranged, other expansion structures can be arranged on the stand column, and then the function and the overall size of the electric power-assisted bicycle are optimized.

Description

Technical Field

[0001] The utility model relates to the field of transportation tools, in particular to a shock absorbing mechanism of an electric power-assisted bicycle. Background Art

[0002] For bicycles, a shock-absorbing mechanism is provided at the front wheel position as required, thereby increasing the comfort of the rider when riding on bumpy roads and protecting the bicycle itself. The traditional shock-absorbing mechanism is to provide a shock-absorbing structure on the two uprights of the front fork bracket of the bicycle, which limits the overall shape and function expansion of the front fork bracket. The utility model is to design a shock-absorbing mechanism with a different structure for use on an electric-assisted bicycle. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a shock absorbing mechanism for an electric power-assisted bicycle. Through a newly designed shock absorbing structure, while achieving a shock absorbing effect, the shape structure of the front fork bracket is expanded so that the front fork bracket can carry more equipment and functions.

[0004] The utility model adopts the following technical scheme: a shock absorbing mechanism of an electric power-assisted bicycle comprises a front fork bracket, the front fork bracket comprises two upright posts, a rotating frame, a shock absorbing member and a rotating rod, a front wheel is arranged at the lower part of the two upright posts through a rotating shaft, one end of the rotating frame is rotatably arranged at the upper part of the two upright posts, the other end of the rotating frame is rotatably arranged at the rotating rod, the lower part of the shock absorbing member is rotatably arranged on the rotating frame, the upper part of the shock absorbing member is rotatably arranged on the rotating rod, the shock absorbing member, the rotating rod and the rotating frame form a triangular structure, and the shape of the triangle changes when the shock absorbing member is subjected to force and released to change its length.

[0005] As an improvement, a secondary rotating frame is also included, one end of which is rotatably arranged on the upper part of the two columns, and the other end of the secondary rotating frame is rotatably arranged on the upper part of the rotating rod. The rotating frame and the secondary rotating frame are arranged in parallel, so that the rotating frame, the columns, the secondary rotating frame and the rotating rod form a parallelogram structure.

[0006] As an improvement, the rotating frame and / or the auxiliary rotating frame includes vertical frames on both sides and a horizontal frame located in the middle to connect the vertical frames on both sides. The vertical frames are rotatably connected to the columns and the rotating rods respectively, and the shock absorber is rotatably arranged between the vertical frames on both sides.

[0007] As an improvement, the auxiliary rotating frame is arranged at the upper ends of the two columns.

[0008] As an improvement, the shock absorbing component is one of a spring component, a rubber spring component, a gas pressure component or an oil pressure component.

[0009] The beneficial effects of the utility model are as follows: through the triangular structure formed by the shock-absorbing component, the rotating rod and the rotating frame, the rotating rod can be rotatably connected to the body bracket of the electric power-assisted bicycle to achieve a stable shock-absorbing function for the front wheel; at the same time, the column is independently arranged, and other expansion structures can be arranged on the column, thereby optimizing the function and the volume of the electric power-assisted bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a three-dimensional structure diagram of the utility model. Figure 1 .

[0011] Figure 2 This is a three-dimensional structure diagram of the utility model. Figure 2 . DETAILED DESCRIPTION

[0012] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0013] like Figure 1 , 2 As shown, a specific embodiment of a shock absorbing mechanism of an electric power-assisted bicycle of the utility model is shown. The embodiment comprises a front fork bracket 1, which comprises two upright posts 2, a rotating frame 3, a shock absorbing member 4 and a rotating rod 5. A front wheel 6 is arranged at the lower part of the two upright posts 2 through a rotating shaft. One end of the rotating frame 3 is rotatably arranged at the upper part of the two upright posts 2, and the other end of the rotating frame 3 is rotatably arranged at the rotating rod 5. The lower part of the shock absorbing member 4 is rotatably arranged on the rotating frame 3, and the upper part of the shock absorbing member 4 is rotatably arranged on the rotating rod 5. The shock absorbing member 4, the rotating rod 5 and the rotating frame 3 form a triangular structure, and the shape of the triangle changes when the shock absorbing member 4 is subjected to force and released to change its length.

[0014] When the utility model is in use, the rotating rod 5 can be rotatably arranged on the body bracket of the electric power-assisted bicycle, and a handle is arranged on the upper part of the rotating rod 5 to realize the function of the vehicle steering handle. The lower part of the two columns 2 is provided with a front wheel 6 through the rotating shaft structure of a conventional bicycle, and then the rotating rod 5 and the columns 2 are connected by the rotating frame 3, and the shock absorber 4 is arranged to form a triangular structure with the shock absorber 4, the rotating rod 5, and the rotating frame 3. This structure realizes the support of the electric power-assisted bicycle and the rider thereon, and the shock absorption function of the traditional bicycle is realized by the force and release of the shock absorber 4. The column 2 is independently arranged, so that it has a better integrated structure and front space, which can be used to arrange other expansion structures on the column 2, such as a basket, a battery, a controller, etc., thereby optimizing the overall structure of the electric power-assisted bicycle, and it is not necessary to arrange some structures at the body bracket, reducing the crowded state at the riding position of the person, and improving the riding comfort.

[0015] As an improved specific implementation method, it also includes a sub-rotating frame 7, one end of the sub-rotating frame 7 is rotatably set on the upper part of the two columns 2, and the other end of the sub-rotating frame 7 is rotatably set on the upper part of the rotating rod 5. The rotating frame 3 and the sub-rotating frame 7 are arranged in parallel, so that the rotating frame 3, the columns 2, the sub-rotating frame 7 and the rotating rod 5 form a parallelogram structure.

[0016] like Figure 1 , 2 As shown, by arranging the auxiliary rotating frame 7 and the rotating frame 3 to cooperate with each other, a multi-link structure connecting the rotating frame 3 and the column 2 is formed, thereby improving the stability of the overall support structure, and the parallelogram structure formed by the rotating frame 3, the column 2, the auxiliary rotating frame 7 and the rotating rod 5 surrounds the shock absorber 4 therein, which plays a protective role for the shock absorber 4 and enables the shock absorber 4 to stably perform its function.

[0017] As an improved specific implementation method, the rotating frame 3 and / or the auxiliary rotating frame 7 include vertical frames 31 on both sides and a horizontal frame 32 located in the middle to connect the vertical frames 31 on both sides. The vertical frames 31 are rotatably connected to the columns 2 and the rotating rods 5 respectively, and the shock absorber 4 is rotatably arranged between the vertical frames 31 on both sides.

[0018] like Figure 1 , 2 As shown, the vertical frames 31 on both sides and a plurality of horizontal frames 32 in the middle form a frame structure with good strength. The shock absorber 4 is located between the vertical frames 31 on both sides and is well stored and protected, thereby ensuring the functional stability of the shock absorber 4 while ensuring the firmness and durability of the structure.

[0019] As an improved specific implementation manner, the auxiliary rotating frame 7 is arranged at the upper ends of the two columns 2 .

[0020] like Figure 1 , 2 As shown, the multi-link structure formed by the auxiliary rotating frame 7 and the rotating frame 3 is located at the upper ends of the two columns 2, providing a stable connection and structural reinforcement for the upper ends of the columns 2, so that the columns 2 and the vehicle body support can form a good overall structure.

[0021] As an improved specific implementation manner, the shock absorbing component 4 is one of a spring component, a rubber spring component, a gas pressure component or an oil pressure component.

[0022] During specific implementation, the manufacturer can select the specific shock absorber 4 according to various factors such as the functional use of the electric assisted bicycle, product cost positioning, service life, shock absorption performance, etc. The above are the more common types of shock absorbers 4.

[0023] The above are only preferred implementations of the utility model. The protection scope of the utility model is not limited to the above embodiments. All technical solutions under the idea of ​​the utility model belong to the protection scope of the utility model. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims

1. A shock absorbing mechanism for an electric power-assisted bicycle, comprising a front fork bracket (1), Features: The front fork bracket (1) comprises two upright posts (2), a rotating frame (3), a shock absorber (4) and a rotating rod (5); a front wheel (6) is arranged at the lower part of the two upright posts (2) via a rotating shaft; one end of the rotating frame (3) is rotatably arranged at the upper part of the two upright posts (2); the other end of the rotating frame (3) is rotatably arranged at the rotating rod (5); the lower part of the shock absorber (4) is rotatably arranged on the rotating frame (3); the upper part of the shock absorber (4) is rotatably arranged on the rotating rod (5); the shock absorber (4), the rotating rod (5) and the rotating frame (3) form a triangular structure; and when the shock absorber (4) is subjected to force and released to change its length, the shape of the triangle changes.

2. A shock absorbing mechanism for an electric-assisted bicycle according to claim 1, Features: The invention also comprises a secondary rotating frame (7), one end of which is rotatably arranged on the upper part of the two upright posts (2), and the other end of which is rotatably arranged on the upper part of the rotating rod (5), and the rotating frame (3) and the secondary rotating frame (7) are arranged in parallel, so that the rotating frame (3), the upright posts (2), the secondary rotating frame (7) and the rotating rod (5) form a parallelogram structure.

3. A shock absorbing mechanism for an electric-assisted bicycle according to claim 2, Features: The rotating frame (3) and the auxiliary rotating frame (7) both comprise vertical frames (31) on both sides and a horizontal frame (32) located in the middle and connecting the vertical frames (31) on both sides. The vertical frames (31) are rotatably connected to the upright posts (2) and the rotating rod (5), respectively. The shock absorbing member (4) is rotatably arranged between the vertical frames (31) on both sides.

4. A shock absorbing mechanism for an electric-assisted bicycle according to claim 1 or 2, Features: The rotating frame (3) comprises vertical frames (31) on both sides and a horizontal frame (32) located in the middle and connecting the vertical frames (31) on both sides. The vertical frames (31) are rotatably connected to the upright posts (2) and the rotating rod (5), respectively. The shock absorbing member (4) is rotatably arranged between the vertical frames (31) on both sides.

5. A shock absorbing mechanism for an electric-assisted bicycle according to claim 2 or 3, Features: The auxiliary rotating frame (7) is arranged at the upper ends of the two upright columns (2).

6. A shock absorbing mechanism for an electric-assisted bicycle according to claim 1, 2 or 3, Features: The shock absorbing component (4) is one of a spring component, a rubber spring component, a pneumatic component or an oil pressure component.

7. The shock absorbing mechanism of an electric-assisted bicycle according to claim 4, Features: The shock absorbing component (4) is one of a spring component, a rubber spring component, a pneumatic component or an oil pressure component.

8. The shock absorbing mechanism of an electric-assisted bicycle according to claim 5, Features: The shock absorbing component (4) is one of a spring component, a rubber spring component, a pneumatic component or an oil pressure component.

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