A four-wheeled kart

Abstract

The present invention discloses a four-wheeled kart, comprising a single wishbone suspension system, a steering system, a battery quick-change system, a timed speed limiting system and a speed control system, wherein the single wishbone suspension system comprises a front suspension device and a rear suspension device, wherein the front suspension device is fixedly connected to the frame body through the front suspension single wishbone and the front shock absorber, and the rear suspension device is fixedly connected to the frame body through the rear suspension single wishbone and the rear shock absorber; the steering system comprises a steering wheel, a column, a steering column and a steering rod. The present invention discloses a four-wheeled kart, which can ensure the independent movement of four wheels through a reasonably designed steering system, a single wishbone suspension system and a timed speed limiting system, wherein the shock absorber can effectively isolate the bumps of the road surface, reduce the vertical movement of the vehicle body, and improve the riding comfort of the driver.

Description

Technical Field

[0001] The invention belongs to the technical field of go-karts, and in particular relates to a four-wheel go-kart. Background Art

[0002] In recent years, with the rapid development of the domestic karting industry, karting has begun to spread from competitive karting to entertainment karting, and various types of karting have sprung up in business districts, scenic spots and entertainment venues in major cities. Although most fuel-powered entertainment karting can guarantee the operating efficiency of the operator, for ordinary consumers, they must endure the pungent smell of gasoline, excessive steering wheel force, poor power and poor ride comfort while enjoying the fun of driving. Similarly, most electric karts on the market are still simple oil-to-electric models. Although they can solve the problems of power and gasoline smell for consumers, they still cannot solve the problems of excessive steering wheel force and poor ride comfort. In addition, the problem of charging electric karts will affect the operating efficiency of the operator. Therefore, the current karting solution cannot meet the demands of consumers and operators.

[0003] In summary, existing karts have the following disadvantages:

[0004] 1. The existing fuel karting indoor venue operation will produce irritating gas due to engine combustion. Members may feel uncomfortable if they smell this gas for a long time;

[0005] 2. Existing karts have problems such as excessive steering force and uncomfortable ride;

[0006] 3. Existing electric karts have problems such as slow charging leading to low operating efficiency;

[0007] 4. The existing karts have electrical system problems, which requires excessive increase in operating costs;

[0008] 5. Existing electric karts lack driving intensity due to motor problems, resulting in a poor driving experience for players;

[0009] 6. The kart is not designed with low-voltage alarm circuits and other circuit components to ensure electrical safety.

[0010] 7. Existing karts have no speed regulator and only have two or three speed adjustments. Summary of the invention

[0011] The main purpose of the present invention is to provide a four-wheel kart, which has a reasonably designed steering system, a single wishbone suspension system and a timed speed limit system. The single wishbone suspension system can ensure the independent movement of the four wheels, wherein the shock absorber can effectively isolate the bumps of the road, reduce the vertical movement of the vehicle body, and improve the riding comfort of the driver; the steering system can adjust different steering wheel positions to meet the sitting postures of different heights and weights, and improve the human-machine interaction of the vehicle; the reasonably designed wheel four-wheel alignment parameters can greatly reduce the force required for the driver to operate the steering wheel; the battery quick-change system can meet the vehicle's rapid replacement of power batteries within 10 seconds, while solving the pollution caused by fuel vehicles and improving the operating efficiency of the kart; the timed speed limit system has three adjustable speeds, which can meet the speed requirements of drivers of different ages, and can automatically reduce the speed after the vehicle has been running for a certain period of time, without the need for reminders from track staff, thereby reducing the staff of the site operator and reducing costs.

[0012] Another object of the present invention is to provide a four-wheeled kart, which is provided with a speed control system and can achieve stepless speed regulation.

[0013] Another object of the present invention is to provide a four-wheel kart, which solves the problem of large steering wheel torque of traditional karts.

[0014] Another object of the present invention is to provide a four-wheeled kart, which solves the problem of low operating efficiency of electric karts due to battery charging problems and the battery safety problem that may be caused by overuse of batteries in existing karts.

[0015] Another object of the present invention is to provide a four-wheeled kart that solves the problem of excessive cost investment for kart hall operators due to the design of the electrical system.

[0016] To achieve the above objectives, the present invention provides a four-wheel kart, including a single wishbone suspension system, a steering system, a battery quick-change system, a timed speed limit system and a speed control system, wherein:

[0017] The single wishbone suspension system comprises a front suspension device and a rear suspension device, wherein the front suspension device is fixedly connected to the frame body through a front suspension single wishbone and a front shock absorber, and the rear suspension device is fixedly connected to the frame body through a rear suspension single wishbone and a rear shock absorber;

[0018] The steering system comprises a steering wheel, a column, a steering column and a steering tie rod, the steering wheel moves along the steering column and the steering column adjusts the angle of the steering wheel through the column, and the steering tie rod is connected to the steering column;

[0019] The quick-change battery of the battery quick-change system is electrically connected to the female end of the connector of the frame body through the male end of the connector (providing power to the motor provided on the frame body), and the battery quick-change system monitors the voltage state of the quick-change battery in real time through the voltage alarm control system (for timely replacement of the quick-change battery, and providing the utilization rate and service life of the quick-change battery);

[0020] The timed speed limiting system comprises a first motor control circuit and a power-off delay circuit, wherein the first motor control circuit performs track timing and power-off speed change through the power-off delay circuit;

[0021] The speed control system comprises a second motor control circuit and a stepless speed regulation circuit, and the second motor control circuit performs stepless speed regulation through the stepless speed regulation circuit.

[0022] As a further preferred technical solution of the above technical solution, the front suspension single wishbone is fixedly connected to the frame body through a first mounting hole and a second mounting hole (threaded connection, in this case, the front suspension device has only one degree of freedom to rotate around the first mounting hole and the second mounting hole), one end of the front shock absorber is fixedly connected to the front suspension single wishbone, and one end of the front shock absorber away from the front suspension single wishbone is fixedly connected to the frame body through a third mounting hole;

[0023] The rear suspension single wishbone is fixedly connected to the frame body through a fourth mounting hole and a fifth mounting hole (threaded connection, at this time, the rear suspension device has only one degree of freedom to rotate around the fourth mounting hole and the fifth mounting hole), one end of the rear shock absorber is fixedly connected to the rear suspension single wishbone, and one end of the rear shock absorber away from the rear suspension single wishbone is fixedly connected to the frame body through a sixth mounting hole.

[0024] As a further preferred technical solution of the above technical solution, the voltage alarm control system includes a power supply circuit, a voltage regulation circuit, a DC conversion circuit, a voltage comparison circuit and a buzzer, the voltage regulation circuit includes a potentiometer R1, the positive pole of the power supply circuit is electrically connected to pin 1 of the potentiometer R1 through an air switch S1, the power supply circuit provides a 12V power supply for the DC conversion circuit and one end of the DC conversion circuit is electrically connected to one end (12V end) of the voltage comparison circuit and the positive pole of the buzzer respectively, pin 2 of the potentiometer R1 is electrically connected to the IN end of the voltage comparison circuit, and the NC end of the voltage comparison circuit is electrically connected to the negative pole of the buzzer.

[0025] As a further preferred technical solution of the above technical solution, the first motor control circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively, the power-off delay circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively through the first motor control circuit, the power-off delay circuit includes a timer, an automotive relay, and a three-speed shift switch, the positive electrode of the timer is connected to the common end of the internal relay of the timer, the normally open end of the internal relay of the timer is connected to the coil of the automotive relay, and the other end of the coil of the automotive relay is grounded;

[0026] The high-speed terminal of the first motor control circuit is connected to one end of the automotive relay, and the low-speed terminal of the first motor control circuit is connected to the other end of the automotive relay;

[0027] The negative electrode of the timer is electrically connected to one end of the self-resetting switch S3, and the end of the self-resetting switch S3 away from the timer is electrically connected to one end of the three-speed shift switch.

[0028] As a further preferred technical solution of the above technical solution, a protection device is connected between the power supply circuit and the power-off delay circuit, and the protection device is an air switch S2.

[0029] As a further preferred technical solution of the above technical solution, the stepless speed regulation circuit includes a potentiometer R2 and a potentiometer R3, pin 1 of the potentiometer R2 is electrically connected to one end of an accelerator pedal arranged on the frame body, pin 3 of the potentiometer R2 is electrically connected to one end (INput) of the second motor control circuit, pin 2 of the potentiometer R2 is electrically connected to pin 2 of the potentiometer R3, and pin 3 of the potentiometer R3 is grounded.

[0030] As a further preferred technical solution of the above technical solution, the frame body includes a roll cage, a motor controller (the first motor control circuit and the second motor control circuit are both arranged in the motor controller), an anti-collision bracket, a seat, a brake pedal, a brake oil pump, an accelerator pedal and a motor, wherein:

[0031] The roll cage is located on a side of the frame body close to the rear suspension device, the motor controller is located below the roll cage, the anti-collision bracket is arranged along the four sides of the frame body, the seat is arranged in the middle of the frame body, the frame body is located between the front suspension device and the rear suspension device, the brake pedal and the accelerator pedal are respectively located on both sides of the steering rod, the brake oil pump is located on one side of the brake pedal and the quick-change battery is located between the accelerator pedal and the brake pedal, the motor is located on one side of the motor controller and the motor is electrically connected to the motor controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a structural schematic diagram of an invented four-wheel kart.

[0033] Figure 2 It is a structural schematic diagram of a front suspension device of a four-wheel kart invented.

[0034] Figure 3 The invention is a schematic diagram of the structure of a rear suspension device of a four-wheel kart.

[0035] Figure 4 It is a structural schematic diagram of a steering system of a four-wheel kart invented.

[0036] Figure 5 The invention is a schematic diagram of the structure of a battery quick-change system for a four-wheel kart.

[0037] Figure 6 The invention discloses a circuit diagram of a voltage alarm control system for a four-wheel kart.

[0038] Figure 7 The invention discloses a circuit diagram of a timed speed limiting system for a four-wheeled kart.

[0039] Figure 8 The invention discloses a circuit diagram of a speed control system for a four-wheeled kart.

[0040] The reference numerals include: 1. roll cage; 2. motor controller; 3. anti-collision bracket; 4. rear suspension; 5. seat; 6. front suspension; 7. front suspension single wishbone; 8. brake pedal; 9. brake oil pump; 10. quick-change battery; 11. accelerator pedal; 12. steering system; 13. frame body; 14. motor; 15. front shock absorber; 16. front steering knuckle; 17. rear suspension single wishbone; 18. rear shock absorber; 19. steering rod; 20. steering column; 21. steering wheel; 22. column; 111. first mounting hole; 112. second mounting hole; 113. third mounting hole; 211. fourth mounting hole; 212. fifth mounting hole; 213. sixth mounting hole; 411. male end of connector. DETAILED DESCRIPTION

[0041] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0042] See attached figure Figure 1 , Figure 1This is a structural diagram of a four-wheeled kart invented. Figure 2 This is a schematic diagram of the structure of the front suspension device of a four-wheeled kart. Figure 3 This is a schematic diagram of the structure of the rear suspension device of a four-wheeled kart. Figure 4 This is a structural diagram of the steering system of a four-wheeled kart. Figure 5 This is a schematic diagram of the structure of a battery quick-change system for a four-wheel kart. Figure 6 This is a circuit diagram of a voltage alarm control system for a four-wheeled kart. Figure 7 This is a circuit diagram of a timed speed limit system for a four-wheeled kart. Figure 8 The invention discloses a circuit diagram of a speed control system for a four-wheeled kart.

[0043] In the preferred embodiment of the present invention, those skilled in the art should note that the potentiometer, relay, etc. involved in the present invention can be regarded as prior art.

[0044] Preferred embodiments.

[0045] The invention discloses a four-wheel kart, comprising a single-arm suspension system, a steering system, a battery quick-change system, a timed speed limiting system and a speed control system, wherein:

[0046] The single wishbone suspension system includes a front suspension device 6 and a rear suspension device 4, wherein the front suspension device 6 is fixedly connected to the frame body 13 through a front suspension single wishbone 7 and a front shock absorber 15, respectively, and the rear suspension device 4 is fixedly connected to the frame body 13 through a rear suspension single wishbone 17 and a rear shock absorber 18, respectively;

[0047] The steering system includes a steering wheel 21, a column 22, a steering column 20 and a steering tie rod 19. The steering wheel 21 moves along the steering column 20 and the steering column 20 adjusts the angle of the steering wheel 21 through the column 22 (to meet the sitting posture requirements of different passengers). The steering tie rod 19 is connected to the steering column 20.

[0048] The quick-change battery 10 of the battery quick-change system is electrically connected to the female connector end (not shown) of the frame body 13 through the male connector end 411 (to provide power to the motor 14 provided on the frame body 10. The battery quick-change system can meet the requirement of quickly replacing the battery in 10 seconds and the connector will not be disconnected during the driving of the vehicle, thereby improving the operation efficiency of the vehicle while ensuring safety.), and the battery quick-change system monitors the voltage state of the quick-change battery in real time through the voltage alarm control system (for timely replacement of the quick-change battery, and providing the utilization rate and service life of the quick-change battery);

[0049] The timed speed limiting system includes a first motor control circuit and a power-off delay circuit, wherein the first motor control circuit performs track timing and power-off speed change through the power-off delay circuit (having the advantages of high efficiency, good safety performance and convenient operation);

[0050] The speed control system comprises a second motor control circuit and a stepless speed regulation circuit, and the second motor control circuit performs stepless speed regulation through the stepless speed regulation circuit.

[0051] Specifically, the front suspension single cross arm 7 is fixedly connected to the frame body 13 through the first mounting hole 111 and the second mounting hole 112 (threaded connection, at this time, the front suspension device 6 has only one degree of freedom to rotate around the first mounting hole 111 and the second mounting hole 112), one end of the front shock absorber 15 is fixedly connected to the front suspension single cross arm 7, and the end of the front shock absorber 15 away from the front suspension single cross arm 7 is fixedly connected to the frame body 13 through the third mounting hole 113, and the end of the front suspension single cross arm close to the front shock absorber is also connected to the front steering knuckle 16;

[0052] The rear suspension single cross arm 17 is fixedly connected to the frame body 13 through the fourth mounting hole 211 and the fifth mounting hole 212 (threaded connection, at this time, the rear suspension device 4 has only one degree of freedom to rotate around the fourth mounting hole 211 and the fifth mounting hole 212), one end of the rear shock absorber 18 is fixedly connected to the rear suspension single cross arm 17, and the end of the rear shock absorber 18 away from the rear suspension single cross arm 17 is fixedly connected to the frame body 13 through the sixth mounting hole 213.

[0053] More specifically, the voltage alarm control system includes a power supply circuit, a voltage regulation circuit, a DC conversion circuit, a voltage comparison circuit and a buzzer. The voltage regulation circuit includes a potentiometer R1. The positive pole of the power supply circuit is electrically connected to pin 1 of the potentiometer R1 through an air switch S1. The power supply circuit provides a 12V power supply for the DC conversion circuit and one end of the DC conversion circuit is electrically connected to one end (12V end) of the voltage comparison circuit and the positive pole of the buzzer respectively. Pin 2 of the potentiometer R1 is electrically connected to the IN end of the voltage comparison circuit, the NC end of the voltage comparison circuit is electrically connected to the negative pole of the buzzer, pin 3 of the potentiometer R1 and the negative pole of the power supply circuit are both electrically connected to the GND end of the voltage comparison circuit, and a relay is provided inside the voltage comparison circuit, and the COM end of the relay is grounded.

[0054] Furthermore, the first motor control circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively, the power-off delay circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively through the first motor control circuit, the power-off delay circuit includes a timer, an automotive relay, and a three-speed shift switch, the positive pole of the timer is connected to the common end of the internal relay of the timer, the normally open end of the internal relay of the timer is connected to the coil of the automotive relay, and the other end of the coil of the automotive relay is grounded;

[0055] The high-speed terminal of the first motor control circuit is connected to one end of the automotive relay, and the low-speed terminal of the first motor control circuit is connected to the other end of the automotive relay;

[0056] The negative electrode of the timer is electrically connected to one end of the self-resetting switch S3, and the end of the self-resetting switch S3 away from the timer is electrically connected to one end of the three-speed shift switch.

[0057] Furthermore, a protection device is connected between the power supply circuit and the power-off delay circuit, and the protection device is an air switch S2.

[0058] Preferably, the stepless speed regulation circuit includes a potentiometer R2 and a potentiometer R3, pin 1 of the potentiometer R2 is electrically connected to one end of an accelerator pedal arranged on the frame body, pin 3 of the potentiometer R2 is electrically connected to one end (INput) of the second motor control circuit, pin 2 of the potentiometer R2 is electrically connected to pin 2 of the potentiometer R3 and pin 3 of the potentiometer R3 is grounded, and three signal lines of the accelerator pedal are connected to the second motor control circuit. The speed regulation control system aims to provide variable speed.

[0059] Preferably, the frame body 13 includes a roll cage 1, a motor controller 2 (the first motor control circuit and the second motor control circuit are both arranged in the motor controller), an anti-collision bracket 3, a seat 5, a brake pedal 8, a brake oil pump 9, an accelerator pedal 11 and a motor 14, wherein:

[0060] The roll cage 1 is located on one side of the frame body 13 close to the rear suspension device 4, the motor controller 2 is located below the roll cage 1, the anti-collision bracket 3 is arranged along the four sides of the frame body 13, the seat 5 is arranged in the middle of the frame body 13, the frame body 13 is located between the front suspension device 6 and the rear suspension device 4, the brake pedal 8 and the accelerator pedal 11 are respectively located on both sides of the steering rod 19, the brake oil pump 9 is located on one side of the brake pedal 8 and the quick-change battery 10 is located between the accelerator pedal 11 and the brake pedal 8, the motor 14 is located on one side of the motor controller 2 and the motor 14 is electrically connected to the motor controller 2.

[0061] It is worth mentioning that the technical features such as potentiometers and relays involved in the patent application of this invention should be regarded as prior art. The specific structure, working principle and possible control method and spatial layout method of these technical features can be selected according to the conventional selection in the field, and should not be regarded as the inventive point of the patent of this invention. The patent of this invention will not be further elaborated.

[0062] For those skilled in the art, it is still possible to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A four-wheeled kart, characterized in that: It includes single wishbone suspension system, steering system, battery quick-change system, timed speed limit system and speed control system, among which: The single wishbone suspension system comprises a front suspension device and a rear suspension device, wherein the front suspension device is fixedly connected to the frame body through a front suspension single wishbone and a front shock absorber, and the rear suspension device is fixedly connected to the frame body through a rear suspension single wishbone and a rear shock absorber; The steering system comprises a steering wheel, a column, a steering column and a steering tie rod, the steering wheel moves along the steering column and the steering column adjusts the angle of the steering wheel through the column, and the steering tie rod is connected to the steering column; The quick-change battery of the battery quick-change system is electrically connected to the female end of the connector of the frame body through the male end of the connector, and the battery quick-change system monitors the voltage state of the quick-change battery in real time through the voltage alarm control system; The timed speed limiting system comprises a first motor control circuit and a power-off delay circuit, wherein the first motor control circuit performs track timing and power-off speed change through the power-off delay circuit; The speed control system comprises a second motor control circuit and a stepless speed regulation circuit, wherein the second motor control circuit performs stepless speed regulation through the stepless speed regulation circuit; The voltage alarm control system includes a power supply circuit, a voltage regulating circuit, a DC conversion circuit, a voltage comparison circuit and a buzzer. The voltage regulating circuit includes a potentiometer R1. The positive pole of the power supply circuit is electrically connected to the 1 pin of the potentiometer R1 through an air switch S1. The power supply circuit provides a 12V power supply for the DC conversion circuit and one end of the DC conversion circuit is electrically connected to one end of the voltage comparison circuit and the positive pole of the buzzer respectively. The 2 pin of the potentiometer R1 is electrically connected to the IN end of the voltage comparison circuit, and the NC end of the voltage comparison circuit is electrically connected to the negative pole of the buzzer. The first motor control circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively, the power-off delay circuit is electrically connected to the power supply circuit and the DC conversion circuit respectively through the first motor control circuit, the power-off delay circuit includes a timer, an automotive relay, and a three-speed shift switch, the positive electrode of the timer is connected to the common end of the internal relay of the timer, the normally open end of the internal relay of the timer is connected to the coil of the automotive relay, and the other end of the coil of the automotive relay is grounded; The high-speed terminal of the first motor control circuit is connected to one end of the automotive relay, and the low-speed terminal of the first motor control circuit is connected to the other end of the automotive relay; The negative electrode of the timer is electrically connected to one end of the self-resetting switch S3, and the end of the self-resetting switch S3 away from the timer is electrically connected to one end of the three-speed shift switch; The stepless speed regulation circuit includes a potentiometer R2 and a potentiometer R3, wherein the pin 1 of the potentiometer R2 is electrically connected to one end of an accelerator pedal disposed on the frame body, the pin 3 of the potentiometer R2 is electrically connected to one end of the second motor control circuit, the pin 2 of the potentiometer R2 is electrically connected to the pin 2 of the potentiometer R3, and the pin 3 of the potentiometer R3 is grounded; The front suspension single wishbone is fixedly connected to the frame body through a first mounting hole and a second mounting hole, one end of the front shock absorber is fixedly connected to the front suspension single wishbone, and one end of the front shock absorber away from the front suspension single wishbone is fixedly connected to the frame body through a third mounting hole; The rear suspension single wishbone is fixedly connected to the frame body through a fourth mounting hole and a fifth mounting hole, one end of the rear shock absorber is fixedly connected to the rear suspension single wishbone, and one end of the rear shock absorber away from the rear suspension single wishbone is fixedly connected to the frame body through a sixth mounting hole.

2. A four-wheeled kart according to claim 1, characterized in that: A protection device is connected between the power supply circuit and the power-off delay circuit, and the protection device is an air switch S2.

3. A four-wheeled kart according to claim 1, characterized in that: The frame body includes a roll cage, a motor controller, an anti-collision bracket, a seat, a brake pedal, a brake oil pump, an accelerator pedal and a motor, wherein: The roll cage is located on a side of the frame body close to the rear suspension device, the motor controller is located below the roll cage, the anti-collision bracket is arranged along the four sides of the frame body, the seat is arranged in the middle of the frame body, the frame body is located between the front suspension device and the rear suspension device, the brake pedal and the accelerator pedal are respectively located on both sides of the steering rod, the brake oil pump is located on one side of the brake pedal and the quick-change battery is located between the accelerator pedal and the brake pedal, the motor is located on one side of the motor controller and the motor is electrically connected to the motor controller.

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