Electric vehicle capable of being driven by motor and manpower

Abstract

The utility model discloses an electric vehicle capable of being driven by a motor and manpower, which is characterized by comprising a frame, and a storage battery, a front wheel, a rear wheel, a motor driving mechanism, a transmission shaft, a fixed flywheel, a movable flywheel and a pedal mechanism which are arranged on the frame, the motor driving mechanism is connected with and drives the transmission shaft, the fixed flywheel and the movable flywheel are arranged on the transmission shaft, and the pedal mechanism is connected with and drives the movable flywheel. A rear wheel gear is arranged on an axle of the rear wheel, a chain wheel transmission mechanism is arranged between the fixed flywheel and the rear wheel, the fixed flywheel drives the rear wheel to rotate through the chain wheel transmission mechanism, and when the fixed flywheel and the transmission shaft rotate, a bearing of the movable flywheel rotates synchronously, and a fluted disc part of the movable flywheel is in a static state. The device is simple in structure, good in stability and convenient to disassemble, assemble and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, and more specifically to an electric bicycle or an electric motorcycle. Background Art

[0002] An electric vehicle is a mechatronic vehicle that uses a battery as an auxiliary energy source, based on a conventional bicycle, and is equipped with a motor, controller, battery, throttle, brake handles, and other control components, as well as a display instrument system. The driving force of an electric vehicle is typically generated by the battery providing power to the drive motor. Some electric vehicles also have a pedal mechanism that allows the rider to manually propel the vehicle forward. This pedal mechanism typically includes pedals connected to a rotating shaft, which is connected to a chainring. The chainring is connected to a chainring on the rear wheel of the electric vehicle via a transmission chain. For example, the Chinese patent authorization announcement number CN219948459U discloses a folding electric vehicle, which belongs to the field of electric vehicles and includes an electric vehicle body, a pedal arm, and a sprocket. A folding portion is provided in the middle of the electric vehicle body, and a support assembly is assembled at the bottom of the fixed sleeve. The support assembly includes: a support sleeve rod, which is symmetrically fixed to the bottom of the fixed sleeve and is distributed in an eight-shaped structure from the top to the bottom, and has limited holes at equal intervals along its length; a support rod, which corresponds to the support sleeve rod and has a sliding groove at its top for the support sleeve rod to slide; a locking box, which is fixed at the top between the two support rods, and its two ends are connected to the sliding grooves corresponding to the two support rods. In this patent structure, the electric vehicle can be driven by a motor or manually, and can move even when there is no electricity. However, the disadvantage is that the motor is set on the rear wheel, which is difficult to install and maintain, and its structure needs further improvement. Summary of the Invention

[0003] The purpose of the utility model is to solve the deficiencies of the prior art and to provide an electric vehicle which is stable, reliable, easy to assemble and disassemble and maintain and can be driven by a motor and manpower.

[0004] The utility model adopts the following technical solutions to achieve the above-mentioned purpose: an electric vehicle that can be driven by a motor and manpower, characterized in that it includes a frame and a battery, a front wheel, a rear wheel, a motor drive mechanism, a transmission shaft, a fixed flywheel, a movable flywheel, and a pedal mechanism arranged thereon; the motor drive mechanism is connected to drive the transmission shaft, the fixed flywheel and the movable flywheel are respectively arranged on the transmission shaft, and the pedal mechanism is connected to drive the movable flywheel; a rear wheel gear is provided on the axle of the rear wheel, and a sprocket transmission mechanism is provided between the fixed flywheel and the rear wheel, and the fixed flywheel drives the rear wheel to rotate through the sprocket transmission mechanism, and when the fixed flywheel and the transmission shaft rotate, the bearing of the movable flywheel rotates synchronously, and the gear disc part of the movable flywheel is in a stationary state.

[0005] As a further explanation of the above scheme, the motor drive mechanism includes a motor, a motor gear, a first transmission chain, and a first chainring. The first chainring is fixed on the transmission shaft, the motor gear is fixed on the rotating shaft of the motor, and the first transmission chain is sleeved on the outside of the motor gear and the first chainring, and the first chainring is driven to rotate by the motor.

[0006] Furthermore, a fixing seat is provided on the frame, a bearing corresponding to the transmission shaft is provided on the fixing seat, a sprocket fixing seat is provided outside the bearing, and the first chainring is fixed on the sprocket fixing seat.

[0007] Furthermore, the pedal mechanism includes two side pedal assemblies, a central shaft, and a second chainring. The central shaft is connected between the two side pedal assemblies. The pedal assembly includes pedals and cranks. The pedals are installed on the end sides of the cranks. A second chainring is provided on the central shaft. A second transmission chain is provided on the second chainring. The live flywheel is driven to rotate by the second transmission chain. The live flywheel drives the transmission shaft and the fixed flywheel to rotate. The fixed flywheel drives the rear wheel to rotate through the sprocket transmission mechanism. When the fixed flywheel and the transmission shaft rotate, the bearings of the live flywheel rotate synchronously.

[0008] Furthermore, a chain tension adjustment assembly is provided outside the second transmission chain, and the chain tension adjustment assembly includes a gear bracket and an outer flywheel. The outer flywheel is provided on the gear bracket and meshes with the second transmission chain for transmission, and is used to adjust the chain tightness. The gear bracket is fixed to the frame.

[0009] Furthermore, the sprocket transmission mechanism includes a third transmission chain and a rear wheel gear, the rear wheel gear is fixed on the wheel axle of the rear wheel, and the third transmission chain is sleeved outside the rear wheel gear and the fixed flywheel.

[0010] Furthermore, the fixed flywheel and the movable flywheel are arranged side by side on one side of the transmission shaft, the bearing of the movable flywheel is threadedly connected to the transmission shaft, and the movable flywheel is a single-speed flywheel structure.

[0011] The beneficial effects that can be achieved by the above technical solutions of the present invention are:

[0012] The utility model adopts two driving modes: electric motor and human power. The motor is installed on the frame and drives the transmission shaft through a chain. The fixed flywheel and the movable flywheel are respectively arranged on the transmission shaft. The pedal mechanism is connected to drive the movable flywheel. A rear wheel gear is provided on the axle of the rear wheel. A sprocket transmission mechanism is provided between the fixed flywheel and the rear wheel. The fixed flywheel drives the rear wheel to rotate through the sprocket transmission mechanism. When the fixed flywheel and the transmission shaft rotate, the bearing of the movable flywheel rotates synchronously, and the gear plate part of the movable flywheel is in a stationary state. When riding by human power, the pedals are stepped on to drive the movable flywheel to rotate, thereby driving the transmission shaft and the fixed flywheel to rotate. The utility model has a simple structure, stable transmission, and convenient assembly and disassembly and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1It is a structural diagram of the present utility model.

[0014] Figure 2 This is a schematic diagram of the installation structure of the pedal mechanism of the present utility model.

[0015] Figure 3 This is a schematic diagram of the connection structure between the motor drive mechanism and the pedal mechanism.

[0016] Figure 4 This is a schematic diagram of the connection structure between the motor drive mechanism and the pedal mechanism.

[0017] Explanation of the accompanying drawings: 1, frame 2, battery 3, rear wheel 4, motor drive mechanism 4-1, motor 4-2, motor gear 4-3, first transmission chain 4-4, first chainring 5, transmission shaft 6, fixed flywheel 7, movable flywheel 8, pedal mechanism 8-1, pedal assembly 8-11, pedal 8-12, crank 8-2, bottom shaft 8-3, second chainring 8-4, second transmission chain 9, rear wheel gear 10, sprocket transmission mechanism 10-1, third transmission chain 10-2, rear wheel gear 11, fixing seat 12, sprocket fixing seat 13, chain tension adjustment assembly 13-1, gear bracket 13-2, outer flywheel. DETAILED DESCRIPTION

[0018] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0019] Furthermore, 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. Therefore, the terms "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this utility model, "at least" means one or more, unless otherwise specifically defined.

[0020] In this utility model, unless otherwise specified or limited, the terms "assemble," "connect," and "connect" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection; direct connection, connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0021] In the utility model, unless otherwise specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "below," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "above," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0022] The following description of the embodiments of the present invention is further described in conjunction with the accompanying drawings to make the technical solutions and beneficial effects of the present invention clearer and more specific. The following description of the embodiments with reference to the accompanying drawings is illustrative and intended to explain the present invention, but should not be construed as limiting the present invention.

[0023] like Figure 1-Figure 4 As shown, the present invention is an electric vehicle that can be driven by both a motor and human power. It comprises a frame 1, a battery 2 mounted thereon, a front wheel, a rear wheel 3, a motor drive mechanism 4, a drive shaft 5, a fixed flywheel 6, a movable flywheel 7, and a pedal mechanism 8. A mounting position corresponding to the battery 2 is provided in the middle of the frame 1, and the battery 2 provides power for the motor drive mechanism. The motor drive mechanism 4 is connected to and drives the drive shaft 5. The fixed flywheel 6 and movable flywheel 7 are respectively mounted on the drive shaft 5. The pedal mechanism 8 is connected to and drives the movable flywheel 7. A rear wheel gear 9 is mounted on the axle of the rear wheel 3. A sprocket drive mechanism 10 is disposed between the fixed flywheel 6 and the rear wheel. The fixed flywheel drives the rear wheel 3 through the sprocket drive mechanism 10. When the fixed flywheel 6 and the drive shaft 5 rotate, the bearing of the movable flywheel 7 rotates synchronously, while the geared disc portion of the movable flywheel remains stationary. When riding manually, pedaling the pedal mechanism 8 rotates the movable flywheel, which in turn drives the drive shaft and fixed flywheel. The structure is simple, transmission is stable, and assembly and maintenance are easy. The fixed flywheel 6 and the movable flywheel 7 are arranged side by side on one side of the transmission shaft. The bearing of the movable flywheel 7 is threadedly connected to the transmission shaft. The movable flywheel is a single-speed flywheel structure. Since it is a commercially available product, its specific structure will not be described in detail here. It is worth noting that the movable flywheel can also adopt a multi-speed flywheel structure.

[0024] In this embodiment, the motor drive mechanism 4 includes a motor 4-1, a motor gear 4-2, a first transmission chain 4-3, and a first chainring 4-4. The first chainring 4-4 is fixed to a transmission shaft 5, the motor gear 4-2 is fixed to the motor's rotating shaft, and the first transmission chain is sleeved around the motor gear and the first chainring, driving the first chainring to rotate via the motor. A fixing seat 11 is provided on each side of the frame 1. The fixing seat 11 is provided with a bearing corresponding to the transmission shaft. The transmission shaft passes through both sides of the frame. A sprocket fixing seat 12 is provided outside the bearing on one side. The first chainring is fixed to the sprocket fixing seat 12 via fasteners, making disassembly, assembly, and maintenance of the first chainring and the first transmission chain very convenient.

[0025] The pedal mechanism 8 includes two pedal assemblies 8-1, a central axle 8-2, and a second chainring 8-3. The central axle 8-2 is connected between the two pedal assemblies 8-1. The pedal assembly 8-1 includes a pedal 8-11 and a crank 8-12. The pedal is mounted on the end side of the crank. The central axle 8-2 is provided with a second chainring 8-3. The second chainring 8-3 is provided with a second transmission chain 8-4. The second transmission chain 8-4 drives the movable flywheel 7 to rotate. The movable flywheel 7 drives the drive shaft and the fixed flywheel to rotate. The fixed flywheel drives the rear wheel through the sprocket transmission mechanism. When the fixed flywheel and the drive shaft rotate, the bearing of the movable flywheel rotates synchronously. The chain tension adjustment assembly 13 is provided outside the second transmission chain. The chain tension adjustment assembly 13 includes a gear bracket 13-1 and an outer flywheel 13-2. The outer flywheel is provided on the gear bracket and meshes with the second transmission chain to adjust the chain tension. The gear bracket is fixed to the frame. The sprocket transmission mechanism 10 includes a third transmission chain 10-1 and a rear wheel gear 10-2. The rear wheel gear is fixed on the wheel axle of the rear wheel, and the third transmission chain is sleeved outside the rear wheel gear and the fixed flywheel.

[0026] Compared with the prior art, the present invention adopts two driving modes, namely electric motor and human power. The motor is installed on the frame and drives the transmission shaft through a chain, which is convenient for disassembly and maintenance. The fixed flywheel and the movable flywheel are respectively arranged on the transmission shaft, and the pedal mechanism is connected to drive the movable flywheel. A rear wheel gear is provided on the axle of the rear wheel, and a sprocket transmission mechanism is provided between the fixed flywheel and the rear wheel. The fixed flywheel drives the rear wheel to rotate through the sprocket transmission mechanism. When the fixed flywheel and the transmission shaft rotate, the bearing of the movable flywheel rotates synchronously, and the gear disc part of the movable flywheel is in a stationary state. When riding by human power, the pedals are stepped on to drive the movable flywheel to rotate, thereby driving the transmission shaft and the fixed flywheel to rotate. The electric and human driving modes can be freely switched according to user needs and are independent of each other and do not affect each other.

[0027] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the creative concept of the present invention, which all fall within the scope of protection of the present invention.

Claims

1. An electric vehicle that can be driven by a motor and manpower, characterized in that: It includes a frame and a battery, a front wheel, a rear wheel, a motor drive mechanism, a transmission shaft, a fixed flywheel, a movable flywheel, and a pedal mechanism arranged thereon; the motor drive mechanism is connected to drive the transmission shaft, the fixed flywheel and the movable flywheel are respectively arranged on the transmission shaft, and the pedal mechanism is connected to drive the movable flywheel; a rear wheel gear is arranged on the axle of the rear wheel, a sprocket transmission mechanism is arranged between the fixed flywheel and the rear wheel, and the fixed flywheel drives the rear wheel to rotate through the sprocket transmission mechanism.

2. The electric vehicle that can be driven by a motor and manpower according to claim 1, characterized in that: The motor drive mechanism includes a motor, a motor gear, a first transmission chain, and a first chainring. The first chainring is fixed on the transmission shaft, the motor gear is fixed on the rotating shaft of the motor, and the first transmission chain is sleeved outside the motor gear and the first chainring, and the first chainring is driven to rotate by the motor.

3. The electric vehicle that can be driven by a motor and manpower according to claim 1, characterized in that: A fixing seat is provided on the frame, a bearing corresponding to the transmission shaft is provided on the fixing seat, a sprocket fixing seat is provided outside the bearing, and the first chain wheel is fixed on the sprocket fixing seat.

4. The electric vehicle that can be driven by a motor and manpower according to claim 1, characterized in that: The pedal mechanism includes two side pedal assemblies, a middle shaft, and a second chainring. The middle shaft is connected between the two side pedal assemblies. The pedal assembly includes pedals and cranks. The pedals are installed on the end sides of the cranks. The second chainring is provided on the middle shaft. The second chainring is provided with a second transmission chain. The live flywheel is driven to rotate by the second transmission chain, and the live flywheel drives the transmission shaft and the fixed flywheel to rotate.

5. The electric vehicle that can be driven by a motor and manpower according to claim 4, characterized in that: A chain tension adjustment assembly is provided outside the second transmission chain. The chain tension adjustment assembly includes a gear bracket and an outer flywheel. The outer flywheel is provided on the gear bracket and meshes with the second transmission chain for transmission to adjust the chain tightness. The gear bracket is fixed to the frame.

6. The electric vehicle that can be driven by a motor and manpower according to claim 1, characterized in that: The sprocket transmission mechanism includes a third transmission chain and a rear wheel gear, the rear wheel gear is fixed on the wheel axle of the rear wheel, and the third transmission chain is sleeved outside the rear wheel gear and the fixed flywheel.

7. The electric vehicle that can be driven by a motor and manpower according to claim 1, characterized in that: The fixed flywheel and the movable flywheel are arranged side by side on one side of the transmission shaft, and the bearing of the movable flywheel is threadedly connected to the transmission shaft.

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