A golf cart based on steering wheel intelligent return-to-zero technology

Abstract

The utility model discloses a golf cart based on steering wheel intelligence returns to the technique of positive, including golf cart, the neck of the rotating lever of golf cart is equipped with fixed shell, and the bottom fixed connection of fixed shell is located in the operating platform surface of golf cart, the rotating lever surface fixed cover of fixed shell inside is equipped with first bevel gear ring, and the bottom of one side of first bevel gear ring is engaged with second bevel gear, and the bottom fixed mounting of fixed shell has servo motor, and the output of servo motor and the axle key connection of second bevel gear are together, and the top inner wall fixed mounting of fixed shell has controller, and servo motor is controlled in controller, the utility model discloses the setting of button and controller and servo motor, not only realizes electric steering control, and more relies on the linkage of controller and servo motor and builds automatic return function, and steering return can be completed without manual operation, and the frequent operation of driver hand is reduced greatly, and hand fatigue is relieved effectively.

Description

Technical Field

[0001] This utility model relates to the field of golf cart technology, specifically a golf cart based on intelligent steering wheel return technology. Background Technology

[0002] Golf carts, also known as electric golf carts or motorized golf carts, are environmentally friendly passenger vehicles designed and developed specifically for golf courses. They can also be used in resorts, villa areas, garden hotels, tourist attractions, and other locations, serving as a short-distance transportation tool for golf courses, villas, hotels, schools, and private users.

[0003] Currently, Chinese patent CN223148502U discloses a steering mechanism for a golf cart, including a frame, front wheels, rear wheels, and a steering mechanism. The steering mechanism is located inside the front side of the frame and connected to the two front wheels. The steering mechanism includes a main frame and a steering wheel. The main frame is fixedly installed inside the front side of the frame, and the steering wheel is located outside the frame and connected to a rudder stick. The bottom end of the rudder stick is fixedly connected to a swing arm shaft, which extends through and into the frame. The bottom end of the swing arm shaft is equipped with a linkage steering structure. This design allows steering by rotating the steering wheel, which in turn rotates the rudder stick and swing arm shaft. The linkage steering structure then causes the steering gears on both sides to swing left and right, thus achieving wheel steering. The operation is simple and easy to master. The linkage steering structure design allows the steering mechanism to withstand greater external forces and collisions, making it less prone to failure or changes in steering angle, thus improving the stability and reliability of the steering system.

[0004] The steering mechanism of the golf cart mentioned above has some problems in actual use. Although it enables the steering mechanism to withstand large external forces and collisions and is not prone to failure or changes in steering angle, it requires manual return to center after steering, and frequent operation can easily cause hand fatigue for the driver. Utility Model Content

[0005] The purpose of this invention is to provide a golf cart based on intelligent steering wheel return technology to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A golf cart based on intelligent steering wheel return technology includes a golf cart. A fixed housing is fitted around the neck of the steering lever of the golf cart. The bottom of the fixed housing is fixedly connected to the surface of the golf cart's control panel. A first bevel gear ring is fixedly fitted onto the surface of the steering lever inside the fixed housing. A second bevel gear meshes with one side of the bottom of the first bevel gear ring. A servo motor is fixedly installed at the bottom of the fixed housing. The output end of the servo motor is connected to the axle key of the second bevel gear. A controller is fixedly installed on the top inner wall of the fixed housing. The servo motor is controlled by the controller. A steering wheel is located at the top of the steering lever. Buttons are located on both sides of the steering wheel. The output ends of two sets of buttons are electrically connected to the input end of the controller via wires. The input end of the controller is electrically connected to the control module of the golf cart.

[0008] As a preferred technical solution, a resistor is fixedly installed on the inner wall of the bottom of the fixed shell and at a position corresponding to the outer circular surface of the rotating rod. One end of the resistor is connected to the input terminal of the controller via a wire. A fixing ring is fixedly installed on the surface of the rotating rod inside the fixed shell. A fixing cylinder is fixedly inserted into the upper surface of the fixing ring. A conductive rod is inserted into the inside of the fixing cylinder. One end of the conductive rod contacts the resistor, and the other end of the conductive rod is connected to the signal output terminal of the controller via a wire.

[0009] As a preferred technical solution, the resistor is arranged in a C-shape.

[0010] As a preferred technical solution, one end of the conductive rod is rotatably connected to a ball bearing, and the ball bearing is rotatably connected to the surface of the resistor sheet.

[0011] As a preferred technical solution, a limiting ring is fixedly sleeved on the surface of the conductive rod located inside the fixed cylinder, and a spring is sleeved on the surface of the conductive rod located between the inner wall of one end of the fixed cylinder and the limiting ring, with the two ends of the spring contacting the limiting ring and the inner wall of one end of the fixed cylinder, respectively.

[0012] As a preferred technical solution, the other end of the conductive rod is provided with a terminal, which is used for connecting wires.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through the setting of buttons, controller and servo motor, not only realizes electric steering control, but also relies on the linkage of controller and servo motor to build an automatic return-to-center function. Steering return-to-center can be completed without manual operation, which greatly reduces the driver's frequent hand operation and effectively relieves hand fatigue. At the same time, the controller is linked with the vehicle control module to ensure that the steering and return-to-center actions are accurate and stable, improving the convenience and comfort of operation.

[0015] 2. This utility model, through the setting of a resistor and a conductive rod, the cooperative structure of the resistor and the conductive rod can detect the steering angle of the rotating rod in real time. The change in resistance value generates an electrical signal that is fed back to the controller, providing an accurate basis for the controller to judge the steering status and realize automatic return to center. This forms a closed-loop detection system, which greatly improves the accuracy of steering control and enhances the stability and reliability of the steering system.

[0016] 3. By setting up a ball bearing, the ball bearing and the resistor sheet are connected in a rolling manner, which can significantly reduce frictional loss when they are in contact, reduce the wear rate of the components, and extend their service life. At the same time, the rolling contact can ensure good contact between the two and avoid poor contact problems that may be caused by sliding friction, thus ensuring stable transmission of angle signals. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the golf cart based on intelligent steering wheel return technology of this utility model;

[0018] Figure 2 This is a cross-sectional view of the fixing shell of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0020] Figure 4 This is a cross-sectional view of the fixed cylinder of this utility model.

[0021] In the picture:

[0022] 100. Golf cart; 101. Steering wheel; 102. Button; 103. Rotary lever;

[0023] 200. Fixed housing; 201. Controller; 202. First bevel gear ring; 203. Servo motor; 204. Second bevel gear; 205. Fixed ring; 207. Resistor element;

[0024] 300. Conductive rod; 3014. Terminal; 302. Fixing cylinder; 303. Ball bearing; 304. Spring; 305. Limiting ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This embodiment provides a golf cart based on intelligent steering wheel return technology, including a golf cart 100. A fixed housing 200 is fitted around the neck of the steering lever 103 of the golf cart 100. The bottom of the fixed housing 200 is fixedly connected to the control panel surface of the golf cart 100. A first bevel gear ring 202 is fixedly fitted onto the surface of the steering lever 103 inside the fixed housing 200. A second bevel gear 204 meshes with one side of the bottom of the first bevel gear ring 202. A servo motor 203 is fixedly installed at the bottom of the fixed housing 200. The output end of the servo motor 203 is connected to the axle key of the second bevel gear 204. A controller 201 is fixedly installed on the top inner wall of the fixed housing 200. The servo motor 203 is controlled by the controller 201. 1. The top of the rotating lever 103 has a steering wheel 101, and buttons 102 are located on both sides of the steering wheel 101. The output terminals of the two sets of buttons 102 are electrically connected to the input terminals of the controller 201 through wires. The input terminals of the controller 201 are electrically connected to the control module of the golf cart 100. Through the setting of the buttons 102, the controller 201, and the servo motor 203, not only is electric steering control realized, but also an automatic return-to-center function is built based on the linkage between the controller 201 and the servo motor 203. Steering return-to-center can be completed without manual operation, which greatly reduces the driver's frequent hand operation and effectively relieves hand fatigue. At the same time, the controller 201 is linked with the vehicle control module to ensure that the steering and return-to-center actions are accurate and stable, improving the convenience and comfort of operation.

[0027] The controller 201 can be a DSP controller, specifically the TMS320F2812.

[0028] A resistor 207 is fixedly installed on the inner wall of the bottom of the fixed housing 200, corresponding to the outer circular surface of the rotating rod 103. One end of the resistor 207 is connected to the input terminal of the controller 201 via a wire. A fixing ring 205 is fixedly installed on the surface of the rotating rod 103 inside the fixed housing 200. A fixing cylinder 302 is fixedly inserted into the upper surface of the fixing ring 205. A conductive rod 300 is inserted into the inside of the fixing cylinder 302. One end of the conductive rod 300 contacts the resistor 207, and the other end of the conductive rod 300 is connected to the signal output terminal of the controller 201 via a wire. Through the setting of the resistor 207 and the conductive rod 300, the cooperative structure of the resistor 207 and the conductive rod 300 can detect the steering angle of the rotating rod 103 in real time. The change in resistance value forms an electrical signal that is fed back to the controller 201, providing an accurate basis for the controller 201 to judge the steering status and realize automatic return to center. This forms a closed-loop detection system, which greatly improves the accuracy of steering control and enhances the stability and reliability of the steering system.

[0029] The resistor 207 is C-shaped to fit the rotation range of the rotating rod 103, ensuring that the conductive rod 300 remains in contact with the resistor 207 during the turning process. This ensures the continuity and integrity of the turning angle detection, avoids signal interruption due to the mismatch of the resistor 207's shape, and further improves the reliability of the angle detection.

[0030] One end of the conductive rod 300 is rolled with a ball bearing 303, which is rolled to the surface of the resistive element 207. By setting the ball bearing 303, the ball bearing 303 and the resistive element 207 are rolled to reduce friction loss when they are in contact, reduce the wear rate of the components, and extend the service life. At the same time, the rolling contact can ensure good contact between the two, avoid poor contact problems that may be caused by sliding friction, and ensure stable angle signal transmission.

[0031] The conductive rod 300 located inside the fixed cylinder 302 has a limiting ring 305 fixedly sleeved on its surface. A spring 304 is sleeved on the surface of the conductive rod 300 located between the inner wall of one end of the fixed cylinder 302 and the limiting ring 305. The two ends of the spring 304 contact the limiting ring 305 and the inner wall of one end of the fixed cylinder 302, respectively. Through the setting of the spring 304, the spring 304 applies continuous pressure to the conductive rod 300 through the limiting ring 305, which can ensure that the conductive rod 300 is always in close contact with the resistor 207 and avoid contact gaps caused by vibration or shaking of the rotating rod 103.

[0032] The conductive rod 300 has a terminal 3014 at the other end. The terminal 3014 is used for connecting wires. The terminal 3014 provides a convenient interface for connecting the conductive rod 300 and the wires, which facilitates the installation and fixing of the wires, ensures a firm and reliable circuit connection, reduces signal transmission failures caused by loose connections, and facilitates later maintenance and repair.

[0033] Working principle;

[0034] When the golf cart 100 turns to one side, as the rotating lever 103 rotates, the contact position between the conductive rod 300 and the resistor 207 changes, causing a change in the resistance value of the resistor 207 connected to the circuit. The electrical signal from the resistor 207 is transmitted to the input terminal of the controller 201 through the wire. Based on this signal, the controller 201 can determine the rotation angle of the rotating lever 103 in real time. At the same time, the terminal 3014 at the other end of the conductive rod 300 feeds back the signal to the signal output terminal of the controller 201 through the wire, forming a closed-loop detection to ensure that the controller 201 accurately grasps the steering state.

[0035] Furthermore, press both sets of buttons 102 simultaneously during the turn;

[0036] When the steering operation is completed and button 102 is released, controller 201 will automatically calculate the adjustment amount required for returning to center based on the currently detected angle signal of rotating rod 103, and send a reverse drive command to servo motor 203. After receiving the command, servo motor 203 will run in reverse and drive rotating rod 103 to rotate in reverse through bevel gear transmission until the contact position between conductive rod 300 and resistor 207 returns to the initial state. At this time, controller 201 will stop servo motor 203 from working, realizing automatic steering return to center.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A golf cart based on intelligent steering wheel return technology, characterized in that, The system includes a golf cart (100), wherein a fixed housing (200) is fitted around the neck of the rotating rod (103) of the golf cart (100), the bottom of the fixed housing (200) is fixedly connected to the operating surface of the golf cart (100), a first bevel gear ring (202) is fixedly fitted on the surface of the rotating rod (103) inside the fixed housing (200), a second bevel gear (204) meshes with one side of the bottom of the first bevel gear ring (202), and a servo motor (203) is fixedly installed at the bottom of the fixed housing (200). The output end of the servo motor (203) is connected to the axle key of the second bevel gear (204). The controller (201) is fixedly installed on the top inner wall of the fixed housing (200). The servo motor (203) is controlled by the controller (201). The top of the rotating rod (103) has a steering wheel (101). The steering wheel (101) has buttons (102) on both sides. The output ends of the two sets of buttons (102) are electrically connected to the input end of the controller (201) through wires. The input end of the controller (201) is electrically connected to the control module of the golf cart (100).

2. A golf cart based on intelligent steering wheel return technology according to claim 1, characterized in that: A resistor (207) is fixedly installed on the inner wall of the bottom of the fixed housing (200) and at a position corresponding to the outer circular surface of the rotating rod (103). One end of the resistor (207) is connected to the input terminal of the controller (201) through a wire. A fixing ring (205) is fixedly installed on the surface of the rotating rod (103) inside the fixed housing (200). A fixing cylinder (302) is fixedly inserted into the upper surface of the fixing ring (205). A conductive rod (300) is inserted into the inside of the fixing cylinder (302). One end of the conductive rod (300) contacts the resistor (207), and the other end of the conductive rod (300) is connected to the signal output terminal of the controller (201) through a wire.

3. A golf cart based on intelligent steering wheel return technology according to claim 2, characterized in that: The resistor (207) is arranged in a C-shape.

4. A golf cart based on intelligent steering wheel return technology according to claim 3, characterized in that: One end of the conductive rod (300) is rolled with a ball (303), and the ball (303) is rolled with the surface of the resistor (207).

5. A golf cart based on intelligent steering wheel return technology according to claim 4, characterized in that: A limiting ring (305) is fixedly sleeved on the surface of the conductive rod (300) located inside the fixed cylinder (302). A spring (304) is sleeved on the surface of the conductive rod (300) located between the inner wall of one end of the fixed cylinder (302) and the limiting ring (305). The two ends of the spring (304) respectively contact the limiting ring (305) and the inner wall of one end of the fixed cylinder (302).

6. A golf cart based on intelligent steering wheel return technology according to claim 5, characterized in that: The other end of the conductive rod (300) is provided with a terminal (3014), which is used for connecting wires.

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