Universal electric motorcycle bottom fork structure
By incorporating a waist-shaped hole and connecting rod into the electric motorcycle swingarm structure, combined with the drive mechanism and motor, the swingarm structure can be adapted to different sizes of wheels and motors, solving the problem of poor modification flexibility in existing technologies and reducing maintenance costs.
Patent Information
- Application Number
- CN202520451728.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-02
- Estimated Expiration
- 2035-03-14
AI Technical Summary
The existing electric motorcycle swingarm structure can only be used for one type of motorcycle and cannot be adapted to different sizes or types of wheels, resulting in poor modification flexibility, limited maintenance options, and high costs.
A universal electric motorcycle swingarm structure was designed. By setting waist-shaped holes and connecting rods on the first and second swingarms, the position of the connecting rods can be adjusted within the waist-shaped holes. Combined with the drive mechanism and motor, it can be adapted to different sizes of wheels and motors.
It improves the flexibility of vehicle modification, reduces maintenance time and costs, and enhances the versatility and adaptability of the swingarm structure.
Smart Images

Figure CN223751055U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to electric motorcycle technical field, specifically is a general type electric motorcycle flat fork structure. BACKGROUND
[0002] The flat fork structure is the core component of the rear suspension system of the electric motorcycle, is used for connecting the frame and the rear wheel, and mainly includes the following functions: supporting the rear wheel, bearing the weight of the rear wheel and the impact in driving; transmitting power, transmitting the power of the engine or the motor to the rear wheel; maintaining stability, ensuring the stability and maneuverability of the rear wheel in driving.
[0003] The flat fork structure of the electric motorcycle in the prior art can usually only adapt to one vehicle type and one motor, needs to replace different flat fork structures according to different vehicles, users cannot replace the flat fork structure according to different sizes or types of wheels, the personalization and adaptability of the vehicle are limited, and the flexibility of modification is affected; can only be applied to specific specifications of wheels, which may lead to insufficient supply of accessories or high price, and when the flat fork structure is damaged, the replacement options are limited, which may increase the maintenance time and cost. UTILITY MODEL CONTENTS
[0004] The utility model discloses a general type electric motorcycle flat fork structure, which solves the problem that one flat fork structure is only applicable to one wheel, and the structure can install different types of motors.
[0005] To solve the above problems, the following technical scheme is provided:
[0006] The utility model discloses a general type electric motorcycle flat fork structure including first flat fork and second flat fork set up in both sides of wheel, first flat fork and second flat fork symmetrical arrangement along the axle direction of wheel, the middle part of wheel is provided with the connecting shaft that is horizontally arranged, the connecting shaft is hollowly arranged, the connecting shaft middle part rotation is connected with connecting rod, first flat fork and second flat fork with the position corresponding to the end of connecting rod all are provided with the waist type hole, the waist type hole is along the length direction of first flat fork arrangement, the end of connecting rod is located in two waist type holes respectively, the connecting rod is connected with two fixed rings, and the end face of two fixed rings is close to the waist type hole and the surface of first flat fork or second flat fork around the waist type hole is abutted;The connecting shaft between the wheel and the first flat fork is connected with a rotating wheel, the rotating wheel and the connecting shaft are fixedly matched, and the first flat fork and the second flat fork are provided with a driving mechanism for driving the rotating wheel to rotate between the ends away from the wheel.
[0007] The first flat fork and the second flat fork are provided with waist-shaped holes, the two ends of the connecting rod are respectively installed in the two waist-shaped holes, and then the connecting rod is fixed by the fixing ring.
[0008] The driving mechanism comprises a motor, the motor is located between the first flat fork and the second flat fork, and the motor is fixedly connected with the first flat fork and the second flat fork through a screw.
[0009] The main drive wheel and the rotating wheel are connected by a belt, and the rotating wheel is a belt wheel.
[0010] The main drive wheel and the rotating wheel are connected by a chain, and the rotating wheel is a gear.
[0011] In the above scheme, the motor is turned on, the motor drives the main drive wheel to rotate, and then the rotating wheel is driven to rotate through the belt or the chain, and finally the wheel is driven to rotate.
[0012] The inner wall surface of the first flat fork and the second flat fork near the motor is provided with an annular plate, and the inner wall surface of the annular plate abuts against the outer wall surface of the motor.
[0013] In the above scheme, the motor is clamped between the two annular plates, and then the motor is fixedly connected between the first flat fork and the second flat fork through a screw. According to the different motors installed, the corresponding belt wheel or gear is selected, so that the structure is suitable for different motors.
[0014] The upper end of the first flat fork and the second flat fork is provided with a protruding part, and the protruding part is fixedly connected with a baffle.
[0015] In the above scheme, the baffle can effectively block the mud and water from splashing on the wheel and the vehicle body during the driving of the vehicle, which is beneficial to keep the vehicle clean and reduce the scratches on the vehicle body.
[0016] The above scheme has the following advantages:
[0017] 1. The utility model discloses a general electric motorcycle flat fork structure which comprises first flat forks and second flat forks arranged on both sides of a wheel, a connecting shaft arranged horizontally in the middle of the wheel, a waist-shaped hole arranged on each of the first flat forks and the second flat forks, the waist-shaped hole being arranged along the length direction of the first flat forks, the ends of a connecting rod being located in the two waist-shaped holes respectively, two fixing rings being sleeved on the connecting rod, a rotating wheel being sleeved on the segment of the connecting shaft between the wheel and the first flat forks, a driving mechanism for driving the rotating wheel to rotate being arranged between the ends of the first flat forks and the second flat forks away from the wheel, and the first flat forks and the second flat forks being provided with the waist-shaped holes.
[0018] 2. The utility model discloses a general electric motorcycle flat fork structure which can select a belt pulley or a gear corresponding to a motor according to the different motors installed, so that the structure can be applied to different motors. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to make the content of the utility model more easily understood clearly, the utility model is further described in detail below according to the specific embodiments of the utility model and in combination with the drawings, in which:
[0020] Figure 1 Fig. 1 is a structural schematic view of an electric motorcycle flat fork structure in the utility model embodiment 1.
[0021] Figure 2 Fig. 2 is an internal structural schematic view of the electric motorcycle flat fork structure in the utility model embodiment 1.
[0022] Figure 3 Fig. 3 is a structural schematic view of an electric motorcycle flat fork structure in the utility model embodiment 2.
[0023] Figure 4 Fig. 4 is an internal structural schematic view of the electric motorcycle flat fork structure in the utility model embodiment 2.
[0024] Figure 5 Fig. 5 is a structural schematic view of a first flat fork in the utility model general electric motorcycle flat fork structure.
[0025] Figure 6 Figure 1 is a top view of a general-purpose electric motorcycle flat fork structure;
[0026] Marked 1, the wheel; 2, the first flat fork; 3, the second flat fork; 4, the connecting shaft; 5, the waist-shaped hole; 6, the motor; 7, the driving wheel; 8, the belt; 9, the pulley; 10, the chain; 11, the gear; 12, the ring plate; 13, the protruding part; 14, the baffle. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0028] In a specific embodiment 1, as shown in Figure 1 , 6 A general-purpose electric motorcycle flat fork structure of the present application comprises a first flat fork 2 and a second flat fork 3 arranged on both sides of a wheel 1, the first flat fork 2 and the second flat fork 3 are symmetrically arranged along the axis direction of the wheel 1, a connecting shaft 4 horizontally arranged is arranged in the middle of the wheel 1, the connecting shaft 4 is arranged in a hollow shape, a connecting rod is rotatably connected to the middle of the connecting shaft 4, as shown in Figure 5 , the first flat fork 2 and the second flat fork 3 are both provided with a waist-shaped hole 5 corresponding to the end of the connecting rod, the waist-shaped hole 5 is arranged along the length direction of the first flat fork 2, the ends of the connecting rod are respectively located in the two waist-shaped holes 5, two fixing rings are sleeved on the connecting rod, the end faces of the two fixing rings close to the waist-shaped hole 5 abut against the surface of the first flat fork 2 or the second flat fork 3 around the waist-shaped hole 5; the first flat fork 2 and the second flat fork 3 are both provided with a waist-shaped hole 5, when the first flat fork 2 and the second flat fork 3 are installed, the two ends of the connecting rod are respectively installed in the two waist-shaped holes 5, and then fixed through the fixing rings, since the waist-shaped hole 5 is arranged along the length direction of the first flat fork 2, i.e. the first flat fork 2 and the second flat fork 3 can be applicable to different wheels 1, when a wheel 1 with a large diameter needs to be installed between the first flat fork 2 and the second flat fork 3, the connecting rod needs to be adjusted so that the end thereof located in the waist-shaped hole 5 is away from the driving mechanism; when a wheel 1 with a small diameter needs to be installed between the first flat fork 2 and the second flat fork 3, the connecting rod needs to be adjusted so that the end thereof located in the waist-shaped hole 5 is close to the driving mechanism; therefore, according to the wheel 1 with different sizes, the position of the connecting rod in the waist-shaped hole 5 can be adjusted, i.e. the first flat fork 2 and the second flat fork 3 can be applicable to any size of wheel 1, thereby solving the problem that one flat fork structure is only applicable to one wheel 1, which is conducive to improving the flexibility of vehicle modification and reducing the time and cost of maintenance.
[0029] The connecting shaft 4 between the wheel 1 and the first fork 2 is sleeved with a rotating wheel, and the rotating wheel is fixedly connected with the connecting shaft 4. The first fork 2 and the second fork 3 are provided with a driving mechanism for driving the rotating wheel to rotate at the end away from the wheel 1. The driving mechanism comprises a motor 6, and the motor 6 is located between the first fork 2 and the second fork 3. The inner wall surfaces of the first fork 2 and the second fork 3 close to the motor 6 are provided with annular plates 12, and the inner wall surfaces of the annular plates 12 abut against the outer wall surface of the motor 6, so that the motor 6 is clamped between the two annular plates 12. The motor 6 is fixedly connected between the first fork 2 and the second fork 3 through screws. The driving shaft of the motor 6 is provided with a driving wheel 7.
[0030] As shown in Figure 2 , in the embodiment, the driving wheel 7 and the rotating wheel are sleeved with a belt 8, and the rotating wheel is a belt wheel 9.
[0031] In a specific embodiment 2, as shown in Figure 3 , 4 , the difference between the embodiment and the embodiment 1 is that the rotating wheel in the embodiment is a gear 11, and the driving wheel 7 and the gear 11 are sleeved with a chain 10. According to different motors 6, the belt wheel 9 or the gear 11 corresponding to the motor 6 is selected, so that the structure can be applied to different motors 6.
[0032] In a specific embodiment 3, the difference between the embodiment and the embodiments 1 and 2 is that the upper end of the first fork 2 and the second fork 3 in the embodiment is provided with a protruding part 13, and the protruding part 13 is fixedly connected with a baffle 14. In the process of driving the vehicle, the baffle 14 can effectively block the mud and water from splashing on the wheel 1 and the vehicle body, which is beneficial to keep the vehicle clean and reduce the scratches on the vehicle body.
[0033] In use, according to different motors 6, the belt wheel 9 or the gear 11 corresponding to the motor 6 is selected, and then the position of the connecting rod in the waist-shaped hole 5 is adjusted according to the diameter of the wheel 1. Then the connecting rod is fixed through the fixing ring, the motor 6 is started, the motor 6 drives the driving wheel 7 to rotate, the belt wheel 9 or the gear 11 is driven to rotate through the belt 8 or the chain 10, so as to drive the connecting shaft 4 to rotate, and finally the wheel 1 is rotated.
[0034] In the description of the utility model, need understanding is, the orientation or position relation indicated by the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientation or position relation shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore can not be understood as limiting the utility model. In the description of the utility model, unless otherwise specified and limited, it needs to be explained that the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be mechanical connection or electrical connection, it can be the communication of the internal two elements, it can be directly connected, or indirectly connected through an intermediate medium, and for ordinary skilled persons in the art, the specific meaning of the above terms can be understood according to the specific circumstances.
[0035] Obviously, the above embodiments are only examples for clearly illustrating, and are not limited to the embodiments, and for ordinary skilled persons in the art, other different forms of changes or variations can be made on the basis of the above description, and it is not necessary and impossible to enumerate all the embodiments here, and the obvious changes or variations derived therefrom are still within the protection scope of the utility model.
Claims
1. A general-purpose electric motorcycle fork structure characterized by comprising: The utility model provides a kind of driving mechanism of bicycle, including the first flat fork (2) and the second flat fork (3) being arranged in the two sides of wheel (1), the first flat fork (2) and the second flat fork (3) are symmetrically arranged along the axis direction of wheel (1), the connecting shaft (4) being arranged horizontally is arranged in the middle of wheel (1), the connecting shaft (4) is arranged in hollow, connecting rod is rotatably connected in the middle of the connecting shaft (4), the first flat fork (2) and the second flat fork (3) are provided with the waist type hole (5) in the position corresponding with the end of connecting rod, the waist type hole (5) is arranged along the length direction of the first flat fork (2), the end of connecting rod is located in two the waist type hole (5) respectively, two fixed rings are sleeved on the connecting rod, and the end surface of two the fixed rings close to waist type hole (5) is abutted with the surface of the first flat fork (2) or the second flat fork (3) around waist type hole (5);Rotary wheel is sleeved on the segment of connecting shaft (4) between wheel (1) and the first flat fork (2), and the rotary wheel is fixedly matched with the connecting shaft (4), and the first flat fork (2) and the second flat fork (3) are provided with the drive mechanism for driving rotary wheel rotation between the end away from wheel (1).
2. A general-purpose electric motorcycle fork structure according to claim 1, wherein The drive mechanism contains motor (6), and the motor (6) is located between the first flat fork (2) and the second flat fork (3), and is fixedly connected with the first flat fork (2) and the second flat fork (3) by screw, and the driving shaft of the motor (6) is provided with driving wheel (7).
3. A general-purpose electric motorcycle fork structure according to claim 2, wherein Belt (8) is sleeved between the driving wheel (7) and the rotary wheel, and the rotary wheel is belt pulley (9).
4. The universal electric motorcycle fork structure of claim 2, wherein, Chain (10) is sleeved between the driving wheel (7) and the rotary wheel outer wall surface, and the rotary wheel is gear (11).
5. The universal electric motorcycle fork structure of claim 2, wherein, The inner wall surface of the first flat fork (2) and the second flat fork (3) close to motor (6) is provided with annular plate (12), and the inner wall surface of the annular plate (12) is abutted with the outer wall surface of motor (6).
6. The universal electric motorcycle fork structure of claim 1, wherein, The upper end of the first flat fork (2) and the second flat fork (3) is provided with protruding part (13), and the baffle (14) is fixedly connected on the protruding part (13).