Four-wheel dual-control electric vehicle

Abstract

The utility model relates to the technical field of electric vehicles, and discloses a four-wheel dual-control electric vehicle which comprises a vehicle frame (1), wheels (2), a seat, a motor controller and a battery, the wheels (2), the seat, the motor controller and the battery are installed on the vehicle frame (1), a steering column (3) is installed on the vehicle frame (1), and an adult handlebar (5) and a child handlebar (4) are installed on the steering column (3). An adult acceleration switch (52) for controlling driving and a brake rod (53) for controlling braking are mounted on the adult handlebar (5); and a child acceleration switch (41) for controlling driving and an electronic brake switch (42) for controlling braking are mounted on the right side of the child handlebar (4). The system can support independent driving of adults, independent driving of children and joint driving of adults and children, and has a parent-child entertainment function and a coach function which are not achieved by existing products in the market; the method is easy to produce and low in cost.

Description

Technical Field

[0001] The utility model relates to the technical field of electric vehicles, in particular to an electric vehicle with four wheels and dual control. Background Art

[0002] At present, the common means of transportation on the market are two-wheel electric vehicles. However, driving two-wheel electric vehicles requires certain skills, and the driving is unstable, with the risk of tipping over, especially in rainy, snowy and windy weather, it is very easy to tip over. In particular, two-wheel vehicles are very unfriendly to the elderly. It is very dangerous for the elderly to drive two-wheel electric vehicles, and the accident rate is very high. In addition, it is neither convenient nor safe to carry children on two-wheel vehicles.

[0003] There are a few four-wheel scooters, three-wheel scooters (front tricycle and reverse tricycle), but they all have problems such as large weight, inconvenient use, high price, etc. In addition, the suspension system is generally relatively simple and the comfort is poor. Moreover, the vast majority of products cannot be put into the trunk of a passenger car, and the use scenarios are limited.

[0004] Therefore, it is necessary to develop a four-wheel electric vehicle that is small, light, safe, comfortable, suitable for all age groups, especially the elderly to ride, can carry children, and can be put into the trunk of a passenger car. Summary of the Utility Model

[0005] The utility model aims at the disadvantages in the prior art and provides an electric vehicle with four wheels and dual control.

[0006] In order to solve the above technical problems, the utility model is solved by the following technical solutions:

[0007] An electric vehicle with four wheels and dual control includes a frame and wheels mounted on the frame. A steering column is mounted on the frame, which is connected to the wheels and controls the steering of the wheels. An adult handlebar and a child handlebar are sequentially mounted on the steering column from top to bottom. The drive motor is a hub motor mounted on the rear wheel, and the brake is a brake caliper mounted on the wheel. Acceleration switches for controlling the drive of the motor are mounted on both the adult handlebar and the child handlebar. Among them, a mechanical brake lever is mounted on the adult handlebar, and an electronic brake switch is mounted on the child handlebar. As the main load-bearing structure and the basis for integrating other systems, the frame needs to have high structural strength, strong durability and fatigue resistance, strong environmental adaptability, light weight and space-saving requirements. Therefore, a space truss structure scheme composed of alloy pipes is adopted.

[0008] Preferably, the wheels include front wheels and rear wheels, and there are two front wheels and two rear wheels. The two front wheels are arranged facing forward, and the two rear wheels are arranged facing forward.

[0009] Preferably, a hub motor is installed in the rear wheel to form an integrated tire structure. The integrated structure of the hub motor and the tire allows the tire to wrap the entire motor structure. The motor has only one mounting shaft extending out to connect to the suspension, without any other transmission mechanism, simple structure and high safety. The rear wheel is connected to the frame through a longitudinal swing arm, and the wheel frame body is made of metal plates assembled and welded in three dimensions, with low cost and high processing efficiency. The hub motor has only one mounting shaft extending out to connect to the suspension, without any other transmission mechanism, simple structure and high safety. The rear wheel can be driven by its own hub motor, and the front wheel is the driven wheel.

[0010] Preferably, the upper portion of the frame is provided with a plurality of threaded holes arranged front and rear, and also includes a child seat and an adult seat, which respectively cooperate with the threaded holes and are fixedly mounted on the frame front and rear.

[0011] Preferably, a front shock absorber assembly and a rear shock absorber assembly are also installed on the frame; the front shock absorber assembly adopts a more advanced double wishbone type suspension system, the front shock absorber assembly includes an upper swing arm, a lower swing arm and a front shock absorber spring, the outer side of the upper swing arm is connected to the front wheel through a ball head, the inner side of the upper swing arm is connected to the frame through a bushing, the outer side of the lower swing arm is connected to the front wheel through a ball head, the inner side of the lower swing arm is connected to the frame through a bushing, the lower end of the front shock absorber spring is connected to the lower swing arm through a bolt, and the upper end of the front shock absorber spring is connected to the frame through a bolt; the rear shock absorber assembly includes a longitudinal swing arm and a rear shock absorber spring, the front of the longitudinal swing arm is connected to the frame through a bushing, the rear of the longitudinal swing arm is respectively fixed to the hub motor shafts on the two rear wheels through bolts, the lower end of the rear shock absorber spring is connected to the longitudinal swing arm through bolts, and the upper end of the rear shock absorber spring is connected to the frame through bolts.

[0012] Preferably, the steering column comprises an upper column and a lower column, the upper column and the lower column are hinged by a cylindrical pin, and the upper column can rotate around the cylindrical pin to achieve downward folding.

[0013] Preferably, the lower column is provided with a steering shaft, which is connected to the frame through a bearing and also includes a steering rocker arm. The steering shaft is fixedly connected to the steering rocker arm and controls the rotation of the steering rocker arm. The left and right sides of the steering rocker arm are respectively connected to a left steering rod and a right steering rod, and the left steering rod and the right steering rod are respectively connected to the left and right wheels.

[0014] Preferably, a battery slot is provided at the lower portion of the frame. The battery slot is designed to facilitate charging. The battery can be inserted or removed from the rear. The notch of the battery slot is arranged rearward and located below the adult seat. A pluggable battery is installed in the battery slot.

[0015] Preferably, a combination switch is installed on the adult handlebar, and the combination switch controls the operation of the acceleration switch and the electronic brake switch on the child handlebar, and the combination switch controls the operation of the acceleration switch on the adult handlebar.

[0016] Due to the adoption of the above technical solutions, the utility model has remarkable technical effects: the invention has an adult driving component and a child driving component, which can support adult driving alone, child driving alone, and joint driving of adults and children. In addition to the basic driving function, it also has a parent-child entertainment function and a coaching function that are not available in existing products on the market; this application also has the advantages of high safety, high convenience, high comfort, high adaptability, high producibility, etc.; and this application is easy to produce and has a low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the utility model Figure Ⅰ 。

[0018] Figure 2 is a structural schematic diagram of the utility model Figure Ⅱ 。

[0019] Figure 3 is a structural schematic diagram of the vehicle frame.

[0020] Figure 4 is a structural schematic diagram of the connection between the steering column and the front wheel.

[0021] The names of the parts referred to by each numerical label in the drawings are as follows: 1 - vehicle frame, 2 - wheel, 3 - steering column, 4 - child handlebar, 5 - adult handlebar, 6 - motor controller, 7 - battery, 8 - child seat, 9 - adult seat, 11 - threaded hole, 12 - battery slot, 21 - front wheel, 211 - upper swing arm, 212 - lower swing arm, 213 - front shock absorber spring, 22 - rear wheel, 221 - longitudinal swing arm, 222 - rear shock absorber spring, 31 - upper column, 32 - lower column, 33 - left steering tie rod, 34 - right steering tie rod, 35 - steering rocker arm, 41 - child acceleration switch, 42 - electronic brake switch, 51 - combination switch, 52 - adult acceleration switch, 53 - brake lever. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The present utility model will be further described in detail below with reference to the drawings and embodiments. Embodiment 1

[0023] A four-wheel double-controlled electric vehicle, as shown in the figure, includes a vehicle frame 1 and wheels 2, a seat, a motor controller 6, and a battery 7 mounted on the vehicle frame 1. A steering column 3 is mounted on the vehicle frame 1, and an adult handlebar 5 and a child handlebar 4 are mounted on the steering column 3. An adult acceleration switch 52 for controlling motor drive is mounted on the right side of the adult handlebar 5, and a brake lever 53 for controlling braking is mounted on the left side of the adult handlebar 5. A child acceleration switch 41 for controlling drive is mounted on the right side of the child handlebar 4, and an electronic brake switch 42 for controlling braking is mounted on the left side. The vehicle frame 1, as the main load-bearing structure and the basis for integrating other systems, needs to have high structural strength, strong durability and fatigue resistance, strong environmental adaptability, light weight, and space-saving requirements. Therefore, a spatial truss structure scheme composed of alloy pipes is adopted.

[0024] A combined switch 51 is mounted on the adult handlebar 5. The combined switch 51 controls the adult acceleration switch 52 on the adult handlebar 5, and the combined switch 51 controls the operation of the child acceleration switch 41 and the electronic brake switch 42 on the child handlebar 4.

[0025] The present invention is a handlebar-direction four-wheel electric vehicle with a four-wheel layout, that is, the wheels 2 are arranged in the left front, left rear, right front, and right rear. The vehicle basically presents a left-right symmetrical form. The steering handlebars are arranged in the front, where the child handlebar 4 and the adult handlebar 5 are both fixed on the steering column 3. The adult handlebar 5 is located above, and a rotary adult acceleration switch 52 and a brake lever 53 are provided thereon. The child handlebar 4 is located below, and a child acceleration switch 41 and an electronic brake switch 42 are provided thereon. The vehicle can control acceleration through the adult acceleration switch 52 or the child acceleration switch 41; control deceleration through the adult mechanical brake 53 or the electronic brake switch 42; and control steering by rotating the steering column 3. Both the adult acceleration switch 52 and the child acceleration switch 41 convert the acceleration control action into an electrical signal and transmit it to the motor controller 6. The motor controller 6 performs positive torque control on the motor to drag the vehicle by the motor to achieve driving. The brake lever 53 transmits the brake control action and force to the brake caliper located on the wheel through a cable, and the caliper clamps the brake disc to achieve braking. The electronic brake switch 42 converts the brake control action into an electrical signal and transmits it to the motor controller. The motor controller performs negative torque control on the motor to drag the vehicle by the motor in the opposite direction.

[0026] The seat is arranged in the rear, where the child seat 8 is located in front of the adult seat 9; a frame-type vehicle frame structure is adopted; a dual-wheel hub motor with a left-right symmetrical arrangement of the rear wheels 22 is used for driving. The vehicle is driven by pure electricity, and the power source of the electric energy is a battery 10 that can be quickly disassembled and assembled. The battery 10 can be inserted and withdrawn from the rear into a battery placement space surrounded by the vehicle skeleton.

[0027] The present invention can realize the control of the vehicle in a mutually exclusive manner for adults and children. The switches for adult and child control are located in the combination switch 51 on the adult handlebar 5. When the switch is turned to the adult authority position, the adult acceleration switch 52 on the adult handlebar 5 is effective and the child acceleration switch 41 on the child handlebar 4 is ineffective; when the switch is turned to the child authority position, the adult acceleration switch 52 on the adult handlebar 5 is ineffective and the acceleration switch 41 on the child handlebar 4 is effective.

[0028] When driving, when acceleration is required, the adult acceleration switch 52 on the adult handlebar 5 or the child acceleration switch 41 on the child handlebar 4 is turned to accelerate the vehicle forward or maintain a certain driving speed; when deceleration or parking is required, the brake lever 53 on the adult handlebar 5 is squeezed for mechanical braking to decelerate the vehicle or keep it parked, or the electronic brake switch 42 on the child handlebar 4 is turned to allow the motor to output reverse torque for braking to decelerate the vehicle. When steering is required, the driver turns the handlebar and drives the handlebar rod 3 and the steering column 31, which are transmitted to the wheels through the steering rocker arm 35, the left steering rod 33 and the right steering rod 34 to achieve steering of the wheels, wherein the adult can operate the adult handlebar 5 and the child can operate the child handlebar 4. Example 2

[0029] The embodiment is the same as the first embodiment, except that the wheel 2 includes a front wheel 21 and a rear wheel 22. There are two front wheels 21 and two rear wheels 22. The two front wheels 21 are arranged toward the front, and the two rear wheels 22 are arranged toward the front.

[0030] The rear wheel 22 is equipped with a hub motor and forms an integrated tire structure. The hub motor and the tire integrated structure allows the tire to wrap the entire motor structure. The motor has only one mounting shaft extending out to connect to the suspension, without other transmission mechanisms, simple structure, and high safety. The rear wheel 22 is connected to the frame 1 through the longitudinal swing arm 221, and the wheel frame body is made of metal plates three-dimensionally assembled and welded, with low cost and high processing efficiency. The hub motor has only one mounting shaft extending out to connect to the suspension, without other transmission mechanisms, simple structure, and high safety. The rear wheel 22 can be driven by its own hub motor, and the front wheel 21 is a driven wheel. Example 3

[0031] The embodiment 1 is the same as the embodiment 1, except that a plurality of threaded holes 11 are arranged front and rear on the upper part of the frame 1, and a child seat 8 and an adult seat 9 are also included, and the child seat 8 and the adult seat 9 are respectively matched with the threaded holes 11 and fixedly mounted front and rear on the frame 1. The positions of the child seat 8 and the adult seat 9 can be adjusted through the threaded holes 11, and are suitable for different size requirements. Example 4

[0032] Same as Embodiment 1, except that a front shock absorber assembly and a rear shock absorber assembly are further installed on the vehicle frame 1; the front shock absorber assembly adopts a relatively advanced double-wishbone type suspension system, and the front shock absorber assembly includes an upper swing arm 211, a lower swing arm 212 and a front shock absorber spring 213. The outer side of the upper swing arm 211 is connected to the front wheel 21 through a ball joint, and the inner side of the upper swing arm 211 is connected to the vehicle frame 1 through a bushing. The outer side of the lower swing arm 212 is connected to the front wheel 21 through a ball joint, and the inner side of the lower swing arm 212 is connected to the vehicle frame 1 through a bushing. The lower end of the front shock absorber spring 213 is connected to the lower swing arm 212 through a bolt, and the upper end of the front shock absorber spring 213 is connected to the vehicle frame 1 through a bolt; the rear shock absorber assembly includes a longitudinal swing arm 221 and a rear shock absorber spring 222. The front of the longitudinal swing arm 221 is connected to the vehicle frame 1 through a bushing, and the rear of the longitudinal swing arm 221 is fixedly connected to the hub motor shafts on the two rear wheels 22 through bolts respectively. The lower end of the rear shock absorber spring 222 is connected to the longitudinal swing arm 221 through a bolt, and the upper end of the rear shock absorber spring 222 is connected to the vehicle frame 1 through a bolt. Embodiment 5

[0033] Same as Embodiment 1, except that the steering column 3 includes an upper column 31 and a lower column 32. The upper column 31 and the lower column 32 are hinged through a cylindrical pin, and the upper column 31 can rotate around the cylindrical pin to achieve downward folding.

[0034] Preferably, the lower column 32 is provided with a steering shaft, the steering shaft is connected to the vehicle frame 1 through a bearing, and further includes a steering rocker arm 35. The lower end of the steering shaft is fixedly connected to the steering rocker arm 35 and controls the rotation of the steering rocker arm 35. The left and right sides of the steering rocker arm 35 are respectively connected with a left steering tie rod 33 and a right steering tie rod 34 through ball joints, and the left steering tie rod 33 and the right steering tie rod 34 are respectively connected to the front wheels 21 on the left and right sides of the vehicle. Embodiment 6

[0035] Same as Embodiment 1, except that a battery slot 12 is provided at the lower part of the vehicle frame 1. The design of the battery slot 12 facilitates charging, and the battery can be inserted or removed from the rear. The slot opening of the battery slot 12 is arranged backward and is located below the adult seat 9. A pluggable battery 7 is installed in the battery slot 12.

[0036] In summary, the above are only the preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. An electric vehicle with four wheels and dual control, characterized in that: It includes a frame (1), wheels (2), a seat, a motor controller (6) and a battery (7) mounted on the frame (1). A steering column (3) is mounted on the frame (1), and an adult handlebar (5) and a child handlebar (4) are mounted on the steering column (3). An adult acceleration switch (52) for controlling motor drive is mounted on the right side of the adult handlebar (5), and a brake lever (53) for controlling braking is mounted on the left side of the adult handlebar (5). A child acceleration switch (41) for controlling drive is mounted on the right side of the child handlebar (4), and an electronic brake switch (42) for controlling braking is mounted on the left side.

2. The four-wheel double-controlled electric vehicle according to claim 1, characterized in that: The wheels (2) include a front wheel (21) and a rear wheel (22). There are two front wheels (21) and two rear wheels (22). The two front wheels (21) are arranged facing forward, and the two rear wheels (22) are arranged facing forward.

3. The four-wheel double-controlled electric vehicle according to claim 2, characterized in that: A hub motor is installed inside the rear wheel (22) to form an integrated tire structure, and the rear wheel (22) is connected to the frame (1).

4. A four-wheel double-controlled electric vehicle according to claim 1, characterized in that: A plurality of threaded holes (11) arranged front and rear are provided on the upper part of the frame (1). The seat includes a child seat (8) and an adult seat (9). The child seat (8) and the adult seat (9) are respectively matched with the threaded holes (11) and fixedly installed on the frame (1) front and rear.

5. The four-wheel double-controlled electric vehicle according to claim 2, characterized in that: A front shock absorber assembly and a rear shock absorber assembly are also installed on the frame (1). The front shock absorber assembly is a double-wishbone type suspension system. The front shock absorber assembly includes an upper swing arm (211), a lower swing arm (212) and a front shock absorber spring (213). The outer side of the upper swing arm (211) is connected to the front wheel (21) through a ball joint, and the inner side of the upper swing arm (211) is connected to the frame (1) through a bushing. The outer side of the lower swing arm (212) is connected to the front wheel (21) through a ball joint, and the inner side of the lower swing arm (212) is connected to the frame (1) through a bushing. The lower end of the front shock absorber spring (213) is connected to the lower swing arm (212) through a bolt, and the upper end of the front shock absorber spring (213) is connected to the frame (1) through a bolt. The rear shock absorber assembly includes a longitudinal swing arm (221) and a rear shock absorber spring (222). The front of the longitudinal swing arm (221) is connected to the frame (1) through a bushing, and the rear of the longitudinal swing arm (221) is fixedly connected to the hub motor shafts on the two rear wheels (22) respectively through bolts. The lower end of the rear shock absorber spring (222) is connected to the longitudinal swing arm (221) through a bolt, and the upper end of the rear shock absorber spring (222) is connected to the frame (1) through a bolt.

6. The four-wheel double-controlled electric vehicle according to claim 1, characterized in that: The steering column (3) includes an upper column (31) and a lower column (32). The upper column (31) and the lower column (32) are hinged through a cylindrical pin, and the upper column (31) can rotate around the cylindrical pin.

7. The four-wheel double-controlled electric vehicle according to claim 6, characterized in that: The lower column (32) is provided with a steering shaft. The steering shaft is connected to the frame (1) through a bearing. It also includes a steering rocker arm (35). The lower end of the steering shaft is fixedly connected to the steering rocker arm (35) and controls the rotation of the steering rocker arm (35). A left steering tie rod (33) and a right steering tie rod (34) are respectively connected to the left and right sides of the steering rocker arm (35), and the left steering tie rod (33) and the right steering tie rod (34) are respectively connected to the left and right wheels (2).

8. A four-wheel double-controlled electric vehicle according to claim 1, characterized in that: A battery slot (12) is provided at the lower part of the vehicle frame (1). The notch of the battery slot (12) is arranged backward and is located below the adult seat (9). A pluggable battery (7) is installed in the battery slot (12).

9. The electric vehicle with four wheels and dual control according to claim 1, wherein: A combined switch (51) is installed on the adult handlebar (5). The combined switch (51) controls the operation of the adult acceleration switch (52) on the adult handlebar (5), the child acceleration switch (41) and the electronic brake switch (42) on the child handlebar (4).

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