Steering mechanism for four-wheeled scooters and four-wheeled scooters

Abstract

This invention relates to the technical field of four-wheeled scooters, and discloses a steering device for a four-wheeled scooter, including a steering seat, a steering shaft, a wheel set, a steering adjustment structure, and a return structure. The steering seat is connected to the scooter body, the steering shaft drives the steering adjustment structure to swing, the wheel set is mounted on the steering adjustment structure, and the steering adjustment structure controls the orientation of the wheel set. The return spring includes a hollow section, a first spring section, and a second spring section. The hollow section is fitted with the steering shaft. The inner end of the first spring section abuts against one end of the central shaft, and the outer end of the first spring section is connected to the wheel set. The inner end of the second spring section abuts against the other end of the central shaft, and the outer end of the first spring section is connected to the wheel set. Thus, with the cooperation of the steering adjustment structure and the wheel set, and using an independent suspension structure, the scooter's steering flexibility is improved. The cooperation of the first and second spring sections provides cushioning and facilitates return to center, making it easier for the user to control and improving the user experience.

Description

Technical Field

[0001] This invention patent relates to the technical field of scooters, and more specifically, to a steering device for a four-wheeled scooter and a four-wheeled scooter. Background Technology

[0002] A four-wheeled scooter is a scooter with gliding capabilities. It has four wheels, which work together to glide and turn. Compared to unicycles, two-wheeled scooters, and three-wheeled scooters, four-wheeled scooters glide more smoothly and are easier to learn.

[0003] Currently, four-wheeled scooters consist of a steering mechanism and a frame. The steering mechanism is mounted on the frame, and the user turns the scooter by changing their center of gravity, causing the steering mechanism and the frame to twist relative to each other.

[0004] In the existing technology, the steering mechanism of four-wheeled scooters has poor steering flexibility, causes greater wear and tear on the scooter, and reduces its service life. Furthermore, after the scooter is turned using the steering mechanism, the return to center effect is not obvious, which makes it inconvenient to use the four-wheeled scooter. Summary of the Invention

[0005] The purpose of this invention is to provide a steering device for a four-wheeled scooter and a four-wheeled scooter, aiming to solve the problem of poor steering flexibility of the four-wheeled scooter in the prior art.

[0006] The present invention is implemented as follows: a steering device for a four-wheeled scooter includes a steering seat, a steering shaft, a wheel set, a steering adjustment structure, and a reset structure. The steering seat is arranged in connection with the vehicle body. The steering shaft is arranged longitudinally and mounted on the steering seat. The steering shaft is rotatably arranged and is used to drive the steering adjustment structure to swing. The steering adjustment structure is mounted on the steering seat. The wheel set is mounted on the steering adjustment structure and the steering adjustment structure is used to control the orientation of the wheel set.

[0007] The reset structure includes a reset spring, which comprises a hollow section, a first spring segment, and a second spring segment, arranged sequentially. The steering structure includes a steering shaft with a central shaft portion in the middle. The steering shaft is connected to the steering shaft. The hollow section is fitted onto the steering shaft. The inner end of the first spring segment abuts against one end of the central shaft portion, and the outer end of the first spring segment is connected to the wheel assembly. The inner end of the second spring segment abuts against the other end of the central shaft portion, and the outer end of the first spring segment is connected to the wheel assembly. When steering, either the first spring segment or the second spring segment is in a compressed state.

[0008] Furthermore, a first axial surface and a second axial surface are formed at both ends of the central shaft portion, respectively. The first axial surface is recessed inward to form a first axial groove, which is arranged in a ring shape. The inner end of the first spring segment is embedded in the first axial groove. The first axial surface is recessed inward to form a second axial groove, which is arranged in a ring shape. The inner end of the second spring segment is embedded in the second axial groove. Along the axial direction of the central shaft portion, the first axial groove and the second axial groove are coaxially corresponding.

[0009] Furthermore, the wheelset includes a wheel frame, two wheels, and a reset frame. The two wheels are respectively mounted on the wheel frame. The steering shaft passes through the wheel frame and is used to adjust the orientation of the wheel frame. The reset frame includes a first reset rod and a second reset rod. The inner end of the first reset rod is connected to the steering seat, and the outer end of the first reset rod forms a first rod shaft. The first rod shaft is embedded in one end of the wheel frame. The inner end of the second reset rod is connected to the steering seat, and the outer end of the second reset rod forms a second rod shaft. The second rod shaft is embedded in the other end of the wheel frame. The outer end of the first spring segment is connected to the first rod shaft, and the outer end of the second spring segment is connected to the second rod shaft. Along the direction away from the steering seat, the first reset rod and the second reset rod are arranged in a flared shape. A steering zone is formed between the outer ends of the first reset rod and the second reset rod, and the wheel frame is oscillating along the steering zone.

[0010] Furthermore, the wheelset includes a first reinforcing rod and a second reinforcing rod. The inner end of the first reinforcing rod is connected to the steering seat, and the outer end of the first reinforcing rod is connected to the first reset rod. The first reinforcing rod, the first reset rod, and the steering seat are arranged in a triangular shape. The inner end of the second reinforcing rod is connected to the steering seat, and the outer end of the second reinforcing rod is connected to the second reset rod. The second reinforcing rod, the second reset rod, and the steering seat are arranged in a triangular shape.

[0011] Furthermore, the wheelset includes a first stabilizer and a second stabilizer, the lower part of the steering seat forms a lower edge, the first stabilizer is connected to the lower edge and the wheel frame respectively, the second stabilizer is connected to the lower edge and the wheel frame respectively, and the first stabilizer and the second stabilizer are symmetrically arranged along the steering seat;

[0012] The first stabilizer includes a first stabilizer bar, a first stabilizer shaft, and a first damping spring. The inner end of the first stabilizer bar is connected to the lower edge portion, and the outer end of the first stabilizer bar is connected to one end of the first stabilizer shaft. The first stabilizer shaft extends along the axial direction of the first stabilizer bar, and the other end of the first stabilizer shaft is movably fitted into the wheel frame. The first damping spring is sleeved on the first stabilizer shaft, and both ends of the first damping spring are connected to the outer end of the first stabilizer bar and the wheel frame, respectively.

[0013] The second stabilizer includes a second stabilizer bar, a second stabilizer shaft, and a second damping spring. The inner end of the second stabilizer bar is connected to the lower edge portion, and the outer end of the second stabilizer bar is connected to both ends of the second stabilizer shaft. The second stabilizer shaft extends along the axial direction of the second stabilizer bar, and the other two ends of the second stabilizer shaft are movably embedded in the wheel frame. The second damping spring is sleeved on the second stabilizer shaft, and both ends of the second damping spring are connected to the outer end of the second stabilizer bar and the wheel frame, respectively.

[0014] Furthermore, the steering seat includes a steering housing, the upper part of the steering shaft is fitted with the steering housing, the upper part of the steering shaft forms a steering wheel, the steering wheel is rotated under driving force, the outer periphery of the steering wheel is recessed to form a plurality of grooves, each groove is arranged in a circumferential interval, the steering housing has a positioning block, the positioning block is fitted with the grooves; the groove has two groove surfaces, the positioning block is arranged between the two groove surfaces, the groove surfaces are used to limit the rotation range of the steering wheel.

[0015] A four-wheeled scooter includes a footboard and two steering devices for the four-wheeled scooter. The two steering devices are respectively connected to the footboard and are distributed on both sides of the footboard. The footboard is used by a user to step on it.

[0016] Furthermore, the two steering seats are symmetrically arranged, each having a steering surface. The pedal includes a bottom tread surface, which is horizontally arranged and positioned between the two steering surfaces. Along the direction away from the bottom tread surface, the two steering surfaces are respectively arranged in an inclined, flared shape. The pedal's interior is equipped with a control board, a power supply component, and a heat-conducting plate. The control board and the heat-conducting plate are electrically connected to the power supply component, which supplies electrical energy. The heat-conducting plate has a heat-absorbing surface and a heat-dissipating surface, which are arranged in a thermally interactive manner. The heat-absorbing surface faces the power supply component, and the heat-dissipating surface is laid flat and overlapped with the bottom tread surface.

[0017] Furthermore, two pedal grooves are formed at each end of the pedal, the pedal grooves are arranged to be recessed upwards, the pedal grooves include a bottom groove surface, the steering seat is arranged on the bottom groove surface, the bottom tread surface is arranged between the two bottom groove surfaces, and in the horizontal direction, the bottom groove surface is arranged above the bottom tread surface.

[0018] Furthermore, the pedal is provided with a lamp body and a start button at both ends. The lamp body includes a front lamp and a tail lamp. The front lamp is used to emit illumination light, and the tail lamp is used to emit warning light. The start button, the front lamp, and the tail lamp are electrically connected to the control board. The start button and the front lamp are synchronously connected, and the start button and the tail lamp are staggered.

[0019] Compared with the prior art, the steering device for a four-wheeled scooter provided by the present invention, when steering, has the steering shaft driven by external force to rotate, causing the steering adjustment structure to swing, thereby adjusting the orientation of the wheel set and realizing the steering control of the four-wheeled scooter. Under the combined action of the steering adjustment structure and the wheel set, the steering flexibility of the four-wheeled scooter is improved. Furthermore, the steering device adopts an independent suspension structure, which greatly improves the steering flexibility of the scooter. In addition, when the steering device is rotated, the first spring segment is in a compressed state and the second spring segment is in a stretched state, or the first spring segment is in a stretched state and the second spring segment is in a compressed state. Under the combined action of the first spring segment and the second spring segment, the steering is buffered and the steering device is easy to reset, which facilitates the user's operation and improves the user experience. Attached Figure Description

[0020] Figure 1 This is a three-dimensional schematic diagram of the four-wheeled scooter provided by the present invention;

[0021] Figure 2 This is a front view schematic diagram of the four-wheeled scooter provided by the present invention;

[0022] Figure 3 This is a left-side view of the four-wheeled scooter provided by the present invention;

[0023] Figure 4 This is a top view of the four-wheeled scooter provided by the present invention;

[0024] Figure 5 This is a schematic cross-sectional view of part A of the four-wheeled scooter provided by the present invention;

[0025] Figure 6 This is a top view schematic diagram of the steering device for a four-wheeled scooter provided by the present invention;

[0026] Figure 7 This is a partial top view schematic diagram of the steering device for a four-wheeled scooter provided by the present invention;

[0027] Figure 8 This is a schematic diagram of the layout of the return spring of the steering device for a four-wheeled scooter provided by the present invention;

[0028] Figure 9 This is a three-dimensional schematic diagram of the layout of the first and second stabilizers of the steering device for a four-wheeled scooter provided by the present invention. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0031] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this invention, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Referring to the figure, a preferred embodiment of the present invention is provided.

[0033] The steering device 1 for a four-wheeled scooter includes a steering seat 11, a steering shaft 12, a wheel set 13, a steering adjustment structure 14, and a reset structure 15. The steering seat 11 is connected to the vehicle body. The steering shaft 12 is arranged longitudinally and is mounted on the steering seat 11. The steering shaft 12 is rotatably arranged and is used to drive the steering adjustment structure 14 to swing. The steering adjustment structure 14 is mounted on the steering seat 11. The wheel set 13 is mounted on the steering adjustment structure 14 and the steering adjustment structure 14 is used to control the orientation of the wheel set 13.

[0034] The reset structure 15 includes a reset spring 123, which includes a hollow section 126, a first spring section 124, and a second spring section 125. The first spring section 124, the hollow section 126, and the second spring section 125 are arranged in sequence. The steering structure 14 includes a steering shaft with a central shaft section 122 in the middle. The steering shaft 12 is connected to the steering shaft. The hollow section 126 is fitted onto the steering shaft 12. The inner end of the first spring section 124 is in contact with one end of the central shaft section 122, and the outer end of the first spring section 124 is connected to the wheel assembly 13. The inner end of the second spring section 125 is in contact with the other end of the central shaft section 122, and the outer end of the first spring section 124 is connected to the wheel assembly 13. When steering, the first spring section 124 or the second spring section 125 is in a compressed state.

[0035] The aforementioned steering device 1 for a four-wheeled scooter, when steering, has the steering shaft 12 rotated by an external force, causing the steering adjustment structure 14 to swing, thereby adjusting the orientation of the wheel set 13 and controlling the steering of the four-wheeled scooter. The combined action of the steering adjustment structure 14 and the wheel set 13 improves the steering flexibility of the four-wheeled scooter. Furthermore, the steering device 1 employs an independent suspension structure, greatly enhancing the scooter's steering flexibility. Additionally, when the steering device 1 is rotated, the first spring segment 124 is compressed and the second spring segment 125 is stretched, or vice versa. The combined action of the first spring segment 124 and the second spring segment 125 provides cushioning for steering and facilitates the return of the steering device 1 to its original position, making it easier for the user to operate and improving the user experience.

[0036] The first spring segment 124, the hollow segment 126, and the second spring segment 125 are integrally formed, which facilitates the assembly of the return spring 123 and the production and manufacturing of the return spring 123.

[0037] The two ends of the central shaft portion 122 are respectively formed with a first shaft surface and a second shaft surface. The first shaft surface is recessed inward to form a first shaft groove, which is arranged in a ring. The inner end of the first spring segment 124 is embedded in the first shaft groove. The first shaft surface is recessed inward to form a second shaft groove, which is arranged in a ring. The inner end of the second spring segment 125 is embedded in the second shaft groove.

[0038] Under the action of the first shaft groove, the inner end of the first spring segment 124 plays a reinforcing role, enhancing the stability of the first spring segment 124 and effectively preventing the first spring segment 124 from shifting. Under the action of the second shaft groove, the inner end of the second spring segment 125 plays a reinforcing role, enhancing the stability of the second spring segment 125 and effectively preventing the second spring segment 125 from shifting.

[0039] Along the axial direction of the central shaft 122, the first shaft groove and the second shaft groove are arranged coaxially and correspondingly, which facilitates the synchronous force on the first spring segment 124 and the second spring segment 125, and effectively reduces the offset between the first spring segment 124 and the second spring segment 125.

[0040] In addition, under the action of the first axial surface and the second axial surface, the setting area of ​​the first spring segment 124 and the second spring segment 125 is increased, thereby enhancing the stability of the setting of the first spring segment 124 and the second spring segment 125.

[0041] The wheel assembly 13 includes a wheel frame 131, two wheels 132, and a reset frame 133. The two wheels 132 are respectively mounted on the wheel frame 131. An adjustment shaft passes through the wheel frame 131 and is used to drive and adjust the orientation of the wheel frame 131. The scooter moves and travels by rotating the wheels 132. The wheel frame 131 facilitates the mounting of the wheels 132.

[0042] The reset frame 133 includes a first reset rod and a second reset rod. The inner end of the first reset rod is connected to the steering seat 11, and the outer end of the first reset rod forms a first rod shaft. One end of the first rod shaft is embedded in the wheel frame 131. The inner end of the second reset rod is connected to the steering seat 11, and the outer end of the second reset rod forms a second rod shaft. The other end of the second rod shaft is embedded in the wheel frame 131. The outer end of the first spring segment 124 is connected to the first rod shaft, and the outer end of the second spring segment 125 is connected to the second rod shaft. Along the direction away from the steering seat 11, the first reset rod and the second reset rod are arranged in a flared shape. A steering zone is formed between the outer ends of the first reset rod and the second reset rod. The wheel frame 131 is oscillating along the steering zone.

[0043] Thus, under the action of the first and second reset rods, when steering, the first reset rod applies a reverse action to the first spring segment 124, causing the first spring segment 124 to be compressed. When the steering force is removed, the first spring segment 124 returns to its original position, facilitating the reset of the wheelset 13. Similarly, the second reset rod applies a reverse action to the second spring segment 125, causing the second spring segment 125 to be compressed. When the steering force is removed, the second spring segment 125 returns to its original position, facilitating the reset of the wheelset 13.

[0044] The wheelset 13 includes a first reinforcing rod and a second reinforcing rod. The inner end of the first reinforcing rod is connected to the steering seat 11, and the outer end of the first reinforcing rod is connected to the first reset rod. The first reinforcing rod, the first reset rod, and the steering seat 11 are arranged in a triangular shape. The inner end of the second reinforcing rod is connected to the steering seat 11, and the outer end of the second reinforcing rod is connected to the second reset rod. The second reinforcing rod, the second reset rod, and the steering seat 11 are arranged in a triangular shape.

[0045] In this way, the first reinforcing rod enhances the stability of the first reset rod and improves the stability of the fit between the first reinforcing rod, the first reset rod, and the steering seat 11; the second reinforcing rod enhances the stability of the second reset rod and improves the stability of the fit between the second reinforcing rod, the second reset rod, and the steering seat 11.

[0046] The wheelset 13 includes a first stabilizer 134 and a second stabilizer 135. The lower part of the steering seat 11 forms a lower edge. The first stabilizer 134 is connected to the lower edge and the wheel frame 131 respectively. The second stabilizer 135 is connected to the lower edge and the wheel frame 131 respectively. The first stabilizer 134 and the second stabilizer 135 are symmetrically arranged along the steering seat 11.

[0047] With the combined action of the first stabilizer 134 and the second stabilizer 135, the stability of the wheel set 13 is enhanced, the load-bearing capacity of the wheel set 13 is increased, the service life of the wheel set 13 is improved, and the cooperation between the wheel set 13 and the pedal 2 is enhanced, thereby improving the driving stability of the scooter.

[0048] The first stabilizer 134 includes a first stabilizer bar 1341, a first stabilizer shaft 1342, and a first damping spring 1343. The inner end of the first stabilizer bar 1341 is connected to the lower edge, and the outer end of the first stabilizer bar 1341 is connected to one end of the first stabilizer shaft 1342. The first stabilizer shaft 1342 extends along the axial direction of the first stabilizer bar 1341, and the other end of the first stabilizer shaft 1342 is movably fitted with a wheel frame 131. The first damping spring 1343 is sleeved on the first stabilizer shaft 1342, and the two ends of the first damping spring 1343 are respectively connected to the outer end of the first stabilizer bar 1341 and the wheel frame 131.

[0049] In this way, the combined action of the first stabilizer bar 1341, the first stabilizer shaft 1342 and the first damping spring 1343 facilitates steering reset and provides a buffering effect on steering, thereby improving steering smoothness.

[0050] The second stabilizer 135 includes a second stabilizer bar 1351, a second stabilizer shaft 1352, and a second damping spring 1353. The inner end of the second stabilizer bar 1351 is connected to the lower edge, and the outer end of the second stabilizer bar 1351 is connected to both ends of the second stabilizer shaft 1352. The second stabilizer shaft 1352 extends along the axial direction of the second stabilizer bar 1351. The other two ends of the second stabilizer shaft 1352 are movably fitted with wheel frames 131. The second damping spring 1353 is sleeved on the second stabilizer shaft 1352, and the two ends of the second damping spring 1353 are connected to the outer end of the second stabilizer bar 1351 and the wheel frame 131, respectively.

[0051] In this way, with the combined action of the second stabilizer bar 1351, the second stabilizer shaft 1352, and the second damping spring 1353, it is easy to reset the steering and to buffer the steering, thereby improving the stability of the steering.

[0052] The steering seat 11 includes a steering housing 111. The steering housing 111 is embedded in the upper part of the steering shaft 12. A steering wheel 127 is formed on the upper part of the steering shaft 12. The steering wheel 127 is rotated under driving force. The outer periphery of the steering wheel 127 is recessed to form a plurality of grooves 121. The grooves 121 are arranged in a circumferential interval. The steering housing 111 has a positioning block 112, which is embedded in the grooves 121. The grooves 121 have two groove surfaces. The positioning block 112 is arranged between the two groove surfaces. The groove surfaces are used to limit the rotation range of the steering wheel 127.

[0053] In this way, the cooperation between the positioning block 112 and the disc groove 121 restricts the steering of the scooter, preventing the scooter from turning too much and ensuring the driving safety of the scooter.

[0054] The steering housing 111 is equipped with a position detector, which is used to detect the rotation position of the positioning block 112. The position detector is arranged close to the groove surface. When the position detector does not detect the positioning block 112, the scooter is in an adjustable steering state. When the position detector detects the positioning block 112, the scooter is in a steering restriction position and the scooter cannot continue to turn, thus preventing the steering motor from continuing to drive the steering and protecting the steering motor.

[0055] The steering housing 111 is equipped with a steering motor, which is connected to the steering shaft 12. The steering motor is used to drive the steering shaft 12 to swing, thereby controlling the steering shaft and assisting in steering.

[0056] The pedal 2 is equipped with a left turn button and a right turn button. The left turn button and the right turn button are electrically connected to the control board, and the control board is electrically connected to the steering motor. The left turn button is used to output a left turn signal, and the right turn button is used to output a right turn signal. The left turn button and the right turn button assist in steering and facilitate the control of the four-wheeled scooter.

[0057] The four-wheeled scooter includes a footboard 2 and two steering devices 1 for the four-wheeled scooter. The two steering devices 1 are respectively connected to the footboard 2 and are distributed on both sides of the footboard 2. The footboard 2 is used by the user to step on it. The four-wheeled scooter can be used by the cooperation of the two steering devices 1.

[0058] The two steering mechanisms 1 include four wheels 132, which make the scooter ride more smoothly.

[0059] The two steering seats 11 are symmetrically arranged, and each of the two steering seats 11 has a steering surface 113. The pedal 2 includes a bottom tread surface 21, which is horizontally arranged and located at the bottom. The bottom tread surface 21 is located between the two steering surfaces 113. Along the direction away from the bottom tread surface 21, the two steering surfaces 113 are respectively arranged in an inclined and flared shape. In this way, the airflow is guided, which facilitates the airflow to the bottom tread surface 21, facilitates the carrying of heat from the bottom tread surface 21, and facilitates the heat dissipation of the internal power supply component 4 and control component.

[0060] The pedal 2 is internally equipped with a control board, a power supply component 4, and a heat-conducting plate 5. The control board and the heat-conducting plate 5 are electrically connected to the power supply component 4, which supplies electrical energy. The heat-conducting plate 5 has a heat-absorbing surface and a heat-dissipating surface, which are arranged in a thermally interactive manner. The heat-absorbing surface faces the power supply component 4, and the heat-dissipating surface is laid flat and overlapped with the bottom pedal surface 21. In this way, when the heat-conducting plate 5 is energized, the heat-absorbing surface effectively absorbs the heat inside the pedal 2, and then conducts the heat to the heat-dissipating surface, and then to the bottom pedal surface 21. The heat is then dissipated outward through the bottom pedal 2, which facilitates heat dissipation inside the pedal 2 and protects the power supply component 4 and the control component.

[0061] Two pedal grooves are formed at both ends of the pedal 2. The pedal grooves are arranged to be recessed upwards. The pedal groove includes a bottom groove surface. The steering seat 11 is installed on the bottom groove surface. The bottom step surface 21 is arranged between the two bottom groove surfaces. In the horizontal direction, the bottom groove surface is arranged above the bottom step surface 21. In this way, the overall center of gravity of the pedal 2 tends to be in the middle of the pedal 2. When the user steps on the pedal 2, it is easier for the user to maintain balance and to facilitate the use of the four-wheeled scooter.

[0062] The pedal 2 includes a top tread surface 22, which is arranged vertically to the bottom tread surface 21. The start button, left turn button, and right turn button are respectively located on the top tread surface 22. Along the width direction of the top tread surface 22, the top tread surface 22 is arranged with the middle bottom and the two sides high. In this way, the overall center of gravity of the pedal 2 tends to be in the middle of the pedal 2, which makes it easier for the user to maintain balance when stepping on the pedal 2, and facilitates the use of the four-wheeled scooter.

[0063] The top tread surface 22 includes a middle tread surface and two outer extension surfaces. The middle tread surface is horizontally arranged, and its two ends are connected to the two outer extension surfaces respectively. The outer extension surfaces are arranged in an arc shape that gradually slopes upward away from the middle tread surface. The left turn button and the right turn button are on the two outer extension surfaces respectively. This avoids the user from accidentally stepping on the two left turn buttons and the right turn button.

[0064] The pedal 2 is equipped with a lamp body 3 and a start button at both ends. The lamp body 3 includes a front lamp and a tail lamp. The front lamp is used to emit illumination light, and the tail lamp is used to emit warning light. The start button, the front lamp and the tail lamp are electrically connected to the control board. The start button and the front lamp are synchronously connected, and the start button and the tail lamp are staggered.

[0065] In this way, when the user presses the start button, the corresponding light body 3 is in a conductive arrangement, the front light bulb of the corresponding light body 3 is in a conductive arrangement, and the tail light bulb of the corresponding light body 3 is in a non-conductive arrangement, thus illuminating the scene; the uncorresponding tail light bulb is in a conductive arrangement, which serves as a reminder to those behind and improves the safety of using the four-wheeled scooter.

[0066] The four-wheeled scooter includes a drive motor, which is electrically connected to the control board. The start button is used to input the start signal; in this way, the drive motor is turned on only when the user steps on the start button, thus avoiding accidental start of the drive motor.

[0067] The drive motor provides driving force, which is output to the wheels. The drive wheels are arranged in a rotating manner, which facilitates the driving of the four-wheeled scooter and makes it easier to drive, reducing the difficulty of driving the four-wheeled scooter.

[0068] When the start button is pressed, a start signal is output. The drive motor can only start based on the start signal, thus avoiding accidental start of the drive motor.

[0069] The pedal is equipped with a gyroscope, which is used to detect the horizontal angle of the pedal. The angle signal is fed back to the control board through the gyroscope. The control board controls the steering motor to start based on the angle information to assist left or right steering.

[0070] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A steering device for a four-wheeled scooter, characterized in that, The system includes a steering seat, a steering shaft, a wheel set, a steering adjustment structure, and a reset structure. The steering seat is arranged to be connected to the vehicle body. The steering shaft is arranged longitudinally and is mounted on the steering seat. The steering shaft is rotatably arranged and is used to drive the steering adjustment structure to be oscillating. The steering adjustment structure is mounted on the steering seat. The wheel set is mounted on the steering adjustment structure and is used to control the orientation of the wheel set. The reset structure includes a reset spring, which comprises a hollow section, a first spring segment, and a second spring segment, arranged sequentially. The steering structure includes a steering shaft with a central shaft portion. The steering shaft is connected to the steering shaft. The hollow section is fitted onto the steering shaft. The inner end of the first spring segment abuts against one end of the central shaft portion, and the outer end of the first spring segment is connected to the wheel assembly. The inner end of the second spring segment abuts against the other end of the central shaft portion, and the outer end of the first spring segment is connected to the wheel assembly. During steering, the first spring segment is compressed, and the second spring segment is stretched, or the first spring segment is stretched, and the second spring segment is compressed. The wheel assembly includes a wheel frame, two wheels, and a reset frame. The two wheels are respectively mounted on... The wheel frame has a steering shaft passing through it, which is used to adjust the orientation of the wheel frame. The reset frame includes a first reset rod and a second reset rod. The inner end of the first reset rod is connected to the steering seat, and the outer end of the first reset rod forms a first shaft. The first shaft is embedded in one end of the wheel frame. The inner end of the second reset rod is connected to the steering seat, and the outer end of the second reset rod forms a second shaft. The second shaft is embedded in the other end of the wheel frame. The outer end of the first spring segment is connected to the first shaft, and the outer end of the second spring segment is connected to the second shaft. Along the direction away from the steering seat, the first reset rod and the second reset rod are arranged in a flared shape, and a steering zone is formed between the outer ends of the first reset rod and the second reset rod. The wheel frame is oscillating along the steering zone.

2. The steering device for a four-wheeled scooter as described in claim 1, characterized in that, The steering housing includes a steering shell, which is embedded in the upper part of the steering shaft. A steering wheel is formed on the upper part of the steering shaft. The steering wheel is rotated under driving force. The outer periphery of the steering wheel is recessed to form multiple grooves, which are arranged in a circumferential, spaced apart. The steering shell has a positioning block embedded in the groove. Each groove has two groove surfaces, and the positioning block is positioned between the two groove surfaces. The groove surfaces are used to limit the rotation range of the steering wheel. A steering motor is provided inside the steering shell. The steering motor is connected to the steering shaft and is used to drive the steering shaft to make the steering adjustment structure swing.

3. The steering device for a four-wheeled scooter as described in claim 1, characterized in that, The two ends of the central shaft portion are respectively formed with a first axial surface and a second axial surface. The first axial surface is recessed inward to form a first axial groove, which is arranged in a ring shape. The inner end of the first spring segment is embedded in the first axial groove. The first axial surface is recessed inward to form a second axial groove, which is arranged in a ring shape. The inner end of the second spring segment is embedded in the second axial groove. Along the axial direction of the central shaft portion, the first axial groove and the second axial groove are arranged coaxially and correspondingly.

4. The steering device for a four-wheeled scooter as described in claim 1, characterized in that, The wheelset includes a first reinforcing rod and a second reinforcing rod. The inner end of the first reinforcing rod is connected to the steering seat, and the outer end of the first reinforcing rod is connected to a first reset rod. The first reinforcing rod, the first reset rod, and the steering seat are arranged in a triangular shape. The inner end of the second reinforcing rod is connected to the steering seat, and the outer end of the second reinforcing rod is connected to a second reset rod. The second reinforcing rod, the second reset rod, and the steering seat are arranged in a triangular shape.

5. The steering device for a four-wheeled scooter as described in claim 1, characterized in that, The wheelset includes a first stabilizer and a second stabilizer. The lower part of the steering seat forms a lower edge. The first stabilizer is connected to the lower edge and the wheel frame respectively. The second stabilizer is connected to the lower edge and the wheel frame respectively. The first stabilizer and the second stabilizer are symmetrically arranged along the steering seat. The first stabilizer includes a first stabilizer bar, a first stabilizer shaft, and a first damping spring. The inner end of the first stabilizer bar is connected to the lower edge portion, and the outer end of the first stabilizer bar is connected to one end of the first stabilizer shaft. The first stabilizer shaft extends along the axial direction of the first stabilizer bar, and the other end of the first stabilizer shaft is movably fitted into the wheel frame. The first damping spring is sleeved on the first stabilizer shaft, and both ends of the first damping spring are connected to the outer end of the first stabilizer bar and the wheel frame, respectively. The second stabilizer includes a second stabilizer bar, a second stabilizer shaft, and a second damping spring. The inner end of the second stabilizer bar is connected to the lower edge portion, and the outer end of the second stabilizer bar is connected to one end of the second stabilizer shaft. The second stabilizer shaft extends along the axial direction of the second stabilizer bar, and the other end of the second stabilizer shaft is movably embedded in the wheel frame. The second damping spring is sleeved on the second stabilizer shaft, and both ends of the second damping spring are connected to the outer end of the second stabilizer bar and the wheel frame, respectively.

6. A four-wheeled scooter, comprising a steering device for a four-wheeled scooter as described in any one of claims 1-5, characterized in that, The device includes a footboard and two steering mechanisms for a four-wheeled scooter. The two steering mechanisms are respectively connected to the footboard and are distributed on both sides of the footboard. The footboard is used by the user to step on it.

7. The four-wheeled scooter as described in claim 6, characterized in that, The two steering seats are symmetrically arranged, each having a steering surface. The pedal includes a bottom tread surface, which is horizontally arranged and positioned between the two steering surfaces. Along a direction away from the bottom tread surface, the two steering surfaces are arranged in an inclined, flared shape. The pedal contains a control board, a power supply component, and a heat-conducting plate. The control board and the heat-conducting plate are electrically connected to the power supply component, which supplies electrical energy. The heat-conducting plate has a heat-absorbing surface and a heat-dissipating surface, which are arranged in a thermally interactive manner. The heat-absorbing surface faces the power supply component, and the heat-dissipating surface is laid flat and overlapped with the bottom tread surface.

8. The four-wheeled scooter as described in claim 7, characterized in that, Two pedal grooves are formed at each end of the pedal, and the pedal grooves are arranged to be recessed upwards. Each pedal groove includes a bottom groove surface. The steering seat is arranged on the bottom groove surface. The bottom tread surface is arranged between the two bottom groove surfaces. In the horizontal direction, the bottom groove surface is arranged above the bottom tread surface.

9. The four-wheeled scooter as described in claim 7, characterized in that, The pedal is equipped with a lamp body and a start button at both ends. The lamp body includes a front lamp and a tail lamp. The front lamp is used to emit illumination light, and the tail lamp is used to emit warning light. The start button, the front lamp, and the tail lamp are electrically connected to the control board. The start button and the front lamp are synchronously connected, and the start button and the tail lamp are staggered.

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