阅读说明：本技术 一种前后轮异向同步转向车 (Front and rear wheel different direction synchronous steering vehicle ) 是由 罗吉 罗炎生 于 2021-07-06 设计创作，主要内容包括：本发明公开了一种前后轮异向同步转向车,包括车架具有前架和后架；前轮组件包括前筒座和前车叉,前筒座固定在前架上,前筒座设有第一轴孔,前车叉具有第一车轮连接部和第一旋转轴,第一旋转轴插装在第一轴孔中；后轮组件,后轮组件包括后筒座和后车叉,后筒座固定在后架上,后筒座设有第二轴孔,后车叉具有第二车轮连接部和第二旋转轴,第二旋转轴插装在第二轴孔中；控制装置设置在车架上,用于控制转向；传动装置连接前车叉和后车叉,用于转向传动；换向装置与传动装置连接,用于改变传动方向；本发明的前后轮异向同步转向车,能够实现前、后轮异向同步转向,缩小转向半径提高车辆的机动性。(The invention discloses a front and rear wheel different-direction synchronous steering vehicle, which comprises a frame, a front frame, a rear frame, a front wheel and a rear wheel, wherein the frame is provided with the front frame and the rear frame; the front wheel assembly comprises a front barrel seat and a front fork, the front barrel seat is fixed on the front frame and provided with a first shaft hole, the front fork is provided with a first wheel connecting part and a first rotating shaft, and the first rotating shaft is inserted in the first shaft hole; the rear wheel assembly comprises a rear barrel seat and a rear fork, the rear barrel seat is fixed on the rear frame and is provided with a second shaft hole, the rear fork is provided with a second wheel connecting part and a second rotating shaft, and the second rotating shaft is inserted into the second shaft hole; the control device is arranged on the frame and used for controlling steering; the transmission device is connected with the front fork and the rear fork and is used for steering transmission; the reversing device is connected with the transmission device and is used for changing the transmission direction; the front and rear wheel different-direction synchronous steering vehicle can realize different-direction synchronous steering of the front and rear wheels, reduce the steering radius and improve the maneuverability of the vehicle.)

1. The utility model provides a front and back wheel syntropy turns to car in step which characterized in that includes:

the bicycle frame (100), the front half part of the bicycle frame (100) is a front frame (110), and the rear half part of the bicycle frame (100) is a rear frame (120);

the front wheel assembly (200), the front wheel assembly (200) comprises a front barrel base (210) and a front fork (220), the front barrel base (210) is fixed on the front frame (110), the front barrel base (210) is provided with a first shaft hole, the front fork (220) is provided with a first wheel connecting part and a first rotating shaft (221), the first rotating shaft (221) is inserted into the first shaft hole, and the first wheel connecting part is connected with a front wheel (150);

a rear wheel assembly (300), wherein the rear wheel assembly (300) comprises a rear barrel holder (310) and a rear fork (320), the rear barrel holder (310) is fixed on the rear frame (120), the rear barrel holder (310) is provided with a second shaft hole, the rear fork (320) is provided with a second wheel connecting part and a second rotating shaft (321), the second rotating shaft (321) is inserted into the second shaft hole, and the second wheel connecting part is connected with a rear wheel (160);

a control device (400), the control device (400) being arranged on the frame (100) for controlling steering;

a transmission (500), said transmission (500) connecting said front fork (220) and said rear fork (320) for the transmission of the rotation of said first rotation axis (221) and said second rotation axis (321);

the reversing device (600) is connected with the transmission device (500) and used for changing the transmission direction so that the front fork (220) and the rear fork (320) are steered in different directions and synchronously.

2. The front-rear wheel incongruous synchronous steering vehicle as claimed in claim 1, wherein said transmission means (500) comprises a plurality of said transmission levers (511) and a plurality of universal joints (512), said reversing means (600) comprises a first bevel gear set (611) and a second bevel gear set (612), two adjacent transmission levers (511) are connected by said universal joints (512), said first bevel gear set (611) comprises a first bevel gear and a second bevel gear, said first bevel gear is coaxially connected with the end of the first transmission lever (511), said second bevel gear is coaxially connected with said first rotating shaft (221), said first bevel gear and said second bevel gear are engaged with each other, said second bevel gear set (612) comprises a third bevel gear and a fourth bevel gear, said third bevel gear is coaxially connected with the end of the last transmission lever (511), the fourth bevel gear is coaxially connected with the second rotating shaft (321), and the third bevel gear and the fourth bevel gear are engaged with each other.

3. The front-wheel and rear-wheel incongruous synchronous steering vehicle as claimed in claim 2, wherein a telescopic rod (520) is further arranged between the two transmission rods (511), the telescopic rod (520) comprises a first rod joint (521) and a second rod joint (522), an insertion hole is coaxially arranged at one end of the first rod joint (521), the cross section of the insertion hole is polygonal, a convex rod (523) is coaxially arranged at one end of the second rod joint (522), the cross section of the convex rod (523) is consistent with the cross section of the insertion hole, the convex rod (523) is inserted into the insertion hole in an insertion depth-adjustable manner, and the first rod joint (521) and the second rod joint (522) are both connected with the transmission rods (511) through the universal joints (512).

4. The front and rear wheel incongruous synchronous steering vehicle as claimed in claim 1, wherein auxiliary wheel assemblies (130) are provided on both sides of the traveling direction of the vehicle frame (100), and the auxiliary wheel assemblies (130) are connected to the vehicle frame (100) through a buffer device (140).

5. A vehicle with front and rear wheels steered in different directions according to claim 4, wherein the wheel axes of the two auxiliary wheel assemblies (130) are collinear and are a first wheel axis (131), and the front wheel (150) and the rear wheel (160) are arranged symmetrically with respect to the first wheel axis (131).

6. The front-rear wheel incongruous and synchronous steering vehicle of claim 1, wherein the control device (400) is a first steering handle bar (410), and the first steering handle bar (410) is coaxially connected to the first rotation shaft (221) to rotate the front fork (220).

7. Front and rear wheel incongruous synchronous steer carriage according to claim 1, wherein said transmission (500) comprises a first pendulum (531) and a second pendulum (532), the reversing device (600) comprises a first gear disc (621), a second gear disc (622) and a fixed block (623), the first gear wheel disc (621) is rotationally connected with the fixed block (623), the second gear wheel disc (622) is rotationally connected with the fixed block (623), and the first gear plate (621) and the second gear plate (622) are horizontally placed and engaged with each other, one end of the first swing rod (531) is eccentrically connected with the first gear disc (621), the other end is connected with the front fork (220), one end of the second swing rod (532) is eccentrically connected with the second gear disc (622), and the other end of the second swing rod is connected with the rear fork (320).

8. The front and rear wheel incongruous steering vehicle according to claim 1, wherein a first sprocket (631) is attached to the first rotation shaft (221), a second sprocket (632) is attached to the second rotation shaft (321), the transmission device (500) includes a first chain (541) and a second chain (542), the steering device (600) includes a third gear plate (641), a fourth gear plate (642), a third sprocket (643), a fourth sprocket (644), and a mounting block (645), the third gear plate (641) and the mounting block (645) are rotatably connected, the fourth gear plate (642) and the mounting block (645) are rotatably connected, and the third gear plate (641) and the fourth gear plate (642) are horizontally disposed and engaged with each other, the third gear plate (641) is coaxially connected with the third sprocket (643), the fourth sprocket (644) is coaxially connected to the fourth gear disc (642), the first sprocket (631) and the third sprocket (643) are in transmission connection through the first chain (541), and the second sprocket (632) and the fourth sprocket (644) are in transmission connection through the second chain (542).

9. A front-rear wheel incongruous and synchronous steering vehicle according to claim 8, characterized in that the control device (400) is a second steering handle bar (420), and the second steering handle bar (420) is coaxially connected with the third gear disc (641) to rotate the third gear disc (641).

10. The vehicle with front and rear wheels steered in different directions synchronously as claimed in claim 1, wherein said transmission device (500) comprises a first driving motor (551) and a second driving motor (552), said steering device (600) is a signal transceiver (650), said first driving motor (551) is disposed on said front cylinder base (210) and is in transmission connection with said first rotating shaft (221), said second driving motor (552) is disposed on said rear cylinder base (310) and is in transmission connection with said second rotating shaft (321), said signal transceiver (650) is electrically connected with said first driving motor (551) and said second driving motor (552) to control the first driving motor (551) and said second driving motor (552) to rotate in different directions synchronously.

Technical Field

The invention relates to the technical field of wheel steering control, in particular to a front-wheel and rear-wheel incongruous synchronous steering vehicle.

Background

The vehicle generally adopts a double-front-wheel steering mode, and the steering structure is limited by the structural geometry of the vehicle, and the steering radius is large, so that the maneuverability of the vehicle is poor. Under some conditions, the steering is limited by factors such as environment and the like, or certain special working vehicles need smaller steering radius during steering, and the maneuverability is improved to realize convenient operation.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a front-wheel and rear-wheel incongruous synchronous steering vehicle, which can realize incongruous synchronous steering of the front wheels and the rear wheels, reduce the steering radius and improve the maneuverability of the vehicle.

The front and rear wheel incongruous synchronous steering vehicle according to the embodiment of the invention comprises: the front half part of the frame is a front frame, and the rear half part of the frame is a rear frame; the front wheel assembly comprises a front barrel seat and a front fork, the front barrel seat is fixed on the front frame, the front barrel seat is provided with a first shaft hole, the front fork is provided with a first wheel connecting part and a first rotating shaft, the first rotating shaft is inserted into the first shaft hole, and the first wheel connecting part is connected with a front wheel; the rear wheel assembly comprises a rear cylinder seat and a rear fork, the rear cylinder seat is fixed on the rear frame, the rear cylinder seat is provided with a second shaft hole, the rear fork is provided with a second wheel connecting part and a second rotating shaft, the second rotating shaft is inserted into the second shaft hole, and the second wheel connecting part is connected with a rear wheel; the control device is arranged on the frame and used for controlling steering; the transmission device is connected with the front fork and the rear fork and is used for transmitting the rotation of the first rotating shaft and the second rotating shaft; and the reversing device is connected with the transmission device and is used for changing the transmission direction so that the front fork and the rear fork synchronously steer in different directions.

The front and rear wheel incongruous synchronous steering vehicle provided by the embodiment of the invention at least has the following technical effects: the front fork is matched with the front cylinder seat and the rear fork is matched with the rear cylinder seat, so that the steering action of the wheels can be realized by a simple structure; the frame is provided with a control device which can control the steering direction and the steering angle of the vehicle; the front wheel assembly and the rear wheel assembly are matched through the transmission device and the reversing device, so that the front fork and the rear fork can steer in different directions, and the steering action can be synchronously performed at any time; the steering radius can be reduced by the incongruous steering of the front fork and the rear fork, and the steering maneuverability is improved.

In some embodiments of the present invention, the transmission device includes a plurality of transmission rods and a plurality of universal joints, the reversing device includes a first bevel gear set and a second bevel gear set, two adjacent transmission rods are connected by the universal joints, the first bevel gear set includes a first bevel gear and a second bevel gear, the first bevel gear is coaxially connected with an end of the first transmission rod, the second bevel gear is coaxially connected with the first rotation shaft, the first bevel gear and the second bevel gear are engaged with each other, the second bevel gear set includes a third bevel gear and a fourth bevel gear, the third bevel gear is coaxially connected with an end of the last transmission rod, the fourth bevel gear is coaxially connected with the second rotation shaft, and the third bevel gear and the fourth bevel gear are engaged with each other.

In some embodiments of the present invention, a telescopic rod is further disposed between the two driving rods, the telescopic rod includes a first rod section and a second rod section, one end of the first rod section is coaxially provided with an insertion hole, a cross section of the insertion hole is polygonal, one end of the second rod section is coaxially provided with a protruding rod, a cross section of the protruding rod is consistent with a cross section of the insertion hole, the protruding rod is inserted into the insertion hole with adjustable insertion depth, and both the first rod section and the second rod section are connected to the driving rods through the universal joint.

In some embodiments of the present invention, auxiliary wheel assemblies are disposed on both sides of the vehicle frame in the traveling direction, and the auxiliary wheel assemblies are connected to the vehicle frame through a buffer device.

In some embodiments of the present invention, the wheel axes of the two auxiliary wheel assemblies are collinear, and are the first wheel axis, and the front wheel and the rear wheel are symmetrically arranged with the first wheel axis as a symmetry axis.

In some embodiments of the present invention, the control device is a first steering handle bar, and the first steering handle bar is coaxially connected to the first rotating shaft to rotate the front fork.

In some embodiments of the present invention, the transmission device includes a first swing link and a second swing link, the reversing device includes a first gear disc, a second gear disc and a fixed block, the first gear disc is rotatably connected to the fixed block, the second gear disc is rotatably connected to the fixed block, the first gear disc and the second gear disc are horizontally disposed and engaged with each other, one end of the first swing link is eccentrically connected to the first gear disc, the other end of the first swing link is connected to the front fork, one end of the second swing link is eccentrically connected to the second gear disc, and the other end of the second swing link is connected to the rear fork.

In some embodiments of the present invention, a first sprocket is sleeved on the first rotating shaft, a second sprocket is sleeved on the second rotating shaft, the transmission device includes a first chain and a second chain, the reversing device includes a third gear plate, a fourth gear plate, a third sprocket, a fourth sprocket and an installation block, the third gear plate is rotatably connected to the installation block, the fourth gear plate is rotatably connected to the installation block, the third gear plate and the fourth gear plate are horizontally disposed and engaged with each other, the third gear plate is coaxially connected to the third sprocket, the fourth gear plate is coaxially connected to the fourth sprocket, the first sprocket and the third sprocket are in transmission connection through the first chain, and the second sprocket and the fourth sprocket are in transmission connection through the second chain.

In some embodiments of the present invention, the control device is a second steering handle bar, and the second steering handle bar is coaxially connected to the third gear plate to rotate the third gear plate.

In some embodiments of the present invention, the transmission device includes a first driving motor and a second driving motor, the reversing device is a signal transceiver, the first driving motor is disposed on the front cylinder base and is in transmission connection with the first rotating shaft, the second driving motor is disposed on the rear cylinder base and is in transmission connection with the second rotating shaft, and the signal transceiver is electrically connected to the first driving motor and the second driving motor to control the first driving motor and the second driving motor to rotate in different directions synchronously.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a universal joint structure of a transmission rod according to an embodiment of the present invention;

FIG. 3 is a top view of a wheel arrangement according to an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a swing link according to an embodiment of the present invention;

FIG. 5 is a schematic view of a chain sprocket configuration according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a driving motor according to an embodiment of the present invention.

Reference numerals:

frame 100, front frame 110, rear frame 120, auxiliary wheel assembly 130, first wheel axis 131, cushioning device 140, front wheel 150, rear wheel 160;

a front wheel assembly 200, a front cylinder base 210, a front fork 220, and a first rotation shaft 221;

a rear wheel assembly 300, a rear cylinder mount 310, a rear fork 320, a second rotation shaft 321;

a control device 400, a first steering handle 410, a second steering handle 420;

the device comprises a transmission device 500, a transmission rod 511, a universal joint 512, an expansion rod 520, a first rod joint 521, a second rod joint 522 and a convex rod 523;

a first swing link 531 and a second swing link 532;

a first chain 541 and a second chain 542;

a first drive motor 551, a second drive motor 552;

a reversing device 600, a first bevel gear set 611, a second bevel gear set 612;

a first gear disc 621, a second gear disc 622, and a fixing block 623;

the chain wheel assembly comprises a first chain wheel 631, a second chain wheel 632, a third gear disc 641, a fourth gear disc 642, a third chain wheel 643, a fourth chain wheel 644, a mounting block 645 and a signal transceiver 650.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1, the front and rear wheel incongruous synchronous steering vehicle according to the embodiment of the present invention includes: the bicycle frame 100, the front half part of the bicycle frame 100 is a front frame 110, and the rear half part of the bicycle frame 100 is a rear frame 120; a front wheel assembly 200, wherein the front wheel assembly 200 comprises a front barrel holder 210 and a front fork 220, the front barrel holder 210 is fixed on the front frame 110, the front barrel holder 210 is provided with a first shaft hole, the front fork 220 is provided with a first wheel connecting part and a first rotating shaft 221, the first rotating shaft 221 is inserted into the first shaft hole, and the first wheel connecting part is connected with the front wheel 150; a rear wheel assembly 300, wherein the rear wheel assembly 300 comprises a rear barrel holder 310 and a rear fork 320, the rear barrel holder 310 is fixed on the rear frame 120, the rear barrel holder 310 is provided with a second axle hole, the rear fork 320 is provided with a second wheel connecting part and a second rotating shaft 321, the second rotating shaft 321 is inserted into the second axle hole, and the second wheel connecting part is connected with the rear wheel 160; the control device 400, the control device 400 is arranged on the frame 100 and is used for controlling steering; a transmission device 500, wherein the transmission device 500 is connected with the front fork 220 and the rear fork 320 and is used for transmitting the rotation of the first rotating shaft 221 and the second rotating shaft 321; and the reversing device 600, wherein the reversing device 600 is connected with the transmission device 500 and is used for changing the transmission direction so that the front fork 220 and the rear fork 320 are steered in different directions and synchronously.

The front barrel holder 210 and the rear barrel holder 310 are respectively fixed, the front barrel holder 210 is fixed on the front frame 110, the rear barrel holder 310 is fixed on the rear frame 120, the front fork 220 can rotate around the axis of the front barrel holder 210 to realize steering action, and the rear fork 320 can rotate around the axis of the rear barrel holder 310 to realize steering action. The control device 400 is provided on the frame 100 for controlling steering, for example, using a steering handle or a left and right steering pedal. The steering handle bar may be coaxially connected with the first rotation shaft 221 or the second rotation shaft 321 to control the front fork 220 or the rear fork 320 to steer; the left and right steering pedals may be connected to the front fork 220 by a guide rod, and stepping on the left steering pedal causes the front fork 220 to turn to the left, and stepping on the right steering pedal causes the front fork 220 to turn to the right. The transmission device 500 is connected with the front fork 220 and the rear fork 320, the reversing device 600 is connected with the transmission device 500, the steering actions of the front fork 220 and the rear fork 320 are linked through mechanical transmission, the transmission device 500 is used for steering transmission, and the reversing device 600 is used for changing the transmission direction, so that the front fork 220 and the rear fork 320 are synchronously steered in different directions, the small-radius steering is realized, and the steering maneuverability is improved.

A damping device can be arranged between the front barrel seat 210 and the front frame 110, a damping device can be arranged between the rear barrel seat 310 and the rear frame 120, and when the vehicle runs, wheels bump up and down on uneven road sections, and the damping device can slow down the impact, so that the frame 100 is in a stable state, and the comfort level of a driver is improved.

Referring to fig. 2, in some embodiments of the present invention, the transmission device 500 includes a plurality of transmission rods 511 and a plurality of universal joints 512, the reversing device 600 includes a first bevel gear set 611 and a second bevel gear set 612, two adjacent transmission rods 511 are connected by the universal joints 512, the first bevel gear set 611 includes a first bevel gear and a second bevel gear, the first bevel gear is coaxially connected with an end of the leading transmission rod 511, the second bevel gear is coaxially connected with the first rotation shaft 221, the first bevel gear and the second bevel gear are engaged with each other, the second bevel gear set 612 includes a third bevel gear and a fourth bevel gear, the third bevel gear is coaxially connected with an end of the trailing transmission rod 511, the fourth bevel gear is coaxially connected with the second rotation shaft 321, and the third bevel gear and the fourth bevel gear are engaged with each other.

When the front fork 220 rotates, the first rotating shaft 221 drives the first driving rod 511 to rotate through the first bevel gear set 611, and the power is transmitted to the last driving rod 511, which in turn drives the second rotating shaft 321 to rotate through the second bevel gear set 612. Due to the structural characteristics, the first rotation shaft 221 and the second rotation shaft 321 rotate in opposite directions, i.e., the front fork 220 and the rear fork 320 steer in different directions in synchronization.

A plurality of universal joints 512 are provided between the plurality of transmission rods 511, so that the transmission rods 511 transmit steering power from the front fork 220 to the rear fork 320 or from the rear fork 320 to the front fork 220 in a balanced manner within a certain angle variation range. For example, when the vehicle runs on an uneven road, the relative height between the front fork 120 and the rear fork 220 changes continuously, so that the transmission rods 340 are not coaxial or parallel, the axes of the two adjacent transmission rods 340 form a certain included angle, and if the universal joint 350 is not arranged, the whole structure is rigid and is easy to bend and damage.

In some embodiments of the present invention, a telescopic rod 520 is further disposed between the two driving rods 511, the telescopic rod 520 includes a first rod section 521 and a second rod section 522, one end of the first rod section 521 is coaxially provided with an insertion hole, the cross section of the insertion hole is polygonal, one end of the second rod section 522 is coaxially provided with a protruding rod 523, the cross section of the protruding rod 523 is identical to the cross section of the insertion hole, the protruding rod 523 is inserted into the insertion hole with adjustable insertion depth, and both the first rod section 521 and the second rod section 522 are connected to the driving rods 511 through a universal joint 512.

The protruding rod 523 is inserted into the insertion hole and can move along the axis of the insertion hole, so that the distance between the first rod section 521 and the second rod section 522 can be adjusted, the degree of freedom of a mechanical structure is increased, the abrasion between parts is reduced when the vehicle runs and vibrates, and the service life is prolonged.

In some embodiments of the present invention, the auxiliary wheel assemblies 130 are disposed on both sides of the vehicle frame 100 in the traveling direction, and the auxiliary wheel assemblies 130 are connected to the vehicle frame 100 through the buffer device 140.

The auxiliary wheel assembly 130 can support the frame 100 laterally to improve the stability of the vehicle; the damping device 140 may be a hydraulic damper or a spring damper, etc., and may absorb shock during driving to improve driving comfort.

Referring to fig. 3, in some embodiments of the present invention, the wheel axes of the two auxiliary wheel assemblies 130 are collinear, and are the first wheel axis 131, and the front wheel 150 and the rear wheel 160 are symmetrically disposed about the first wheel axis 131 as an axis of symmetry.

The wheel axes of the auxiliary wheel assemblies 130 on both sides are collinear, referred to as a first wheel axis 131, and the front wheel 150 and the rear wheel 160 are symmetrically arranged around the first wheel axis 131 as a symmetrical axis. During steering, the wheel axis of the front wheel 150, the wheel axis of the rear wheel 160 and the first wheel axis 131 extend respectively and intersect at a point, and the vehicle performs circumferential steering around the point, so that the wheels do not sideslip.

In some embodiments of the present invention, the control device 400 is a first steering handle bar 410, and the first steering handle bar 410 is coaxially connected to the first rotation shaft 221 to rotate the front fork 220.

The first steering handle 410 is provided on the first rotation shaft 221, so that steering power can be easily and manually transmitted to the front fork 220 and to the rear fork 320 through the transmission 500 and the steering device 600, and the front fork 220 and the rear fork 320 can be steered in different directions in synchronization.

Referring to fig. 4, in some embodiments of the present invention, the transmission device 500 includes a first swing link 531 and a second swing link 532, the reversing device 600 includes a first gear disc 621, a second gear disc 622 and a fixing block 623, the first gear disc 621 is rotatably connected to the fixing block 623, the second gear disc 622 is rotatably connected to the fixing block 623, the first gear disc 621 and the second gear disc 622 are horizontally disposed and engaged with each other, one end of the first swing link 531 is eccentrically connected to the first gear disc 621, the other end thereof is connected to the front fork 220, one end of the second swing link 532 is eccentrically connected to the second gear disc 622, and the other end thereof is connected to the rear fork 320.

For example, when the front fork 220 rotates a certain angle to the left of the traveling direction, the first swing link 531 is driven to move a corresponding distance to the direction of the rear fork 320, the first swing link 531 is eccentrically connected to the first gear plate 621, the first swing link 531 pushes the first gear plate 621 to rotate a corresponding angle, the second gear plate 622 is engaged to rotate the same angle in the opposite direction, the eccentric connection between the second gear plate 622 and the second swing link 532 causes the second swing link 532 to also move the same distance to the direction of the rear fork 320, so that the rear fork 320 rotates the same angle to the right of the traveling direction, and the asynchronous steering is realized.

Referring to fig. 5, in some embodiments of the present invention, a first sprocket 631 is sleeved on the first rotation shaft 221, a second sprocket 632 is sleeved on the second rotation shaft 321, the transmission device 500 includes a first chain 541 and a second chain 542, the reversing device 600 includes a third gear disk 641, a fourth gear disk 642, a third sprocket 643, a fourth sprocket 644 and a mounting block 645, the third gear disk 641 and the mounting block 645 are rotatably connected, the fourth gear disk 642 and the mounting block 645 are rotatably connected, the third gear disk 641 and the fourth gear disk 642 are horizontally disposed and engaged with each other, the third gear disk 641 is coaxially connected with the third sprocket 643, the fourth gear disk 642 is coaxially connected with the fourth sprocket 644, the first sprocket 631 and the third sprocket 643 are drivingly connected by the first chain 541, and the second sprocket 632 and the fourth sprocket 644 are drivingly connected by the second chain 542.

When the front fork 220 rotates a certain angle, that is, the first rotation shaft 221 rotates to drive the first sprocket 631 to rotate, the first sprocket 631 is in transmission connection with the third sprocket 643 through the first chain 541, and the third sprocket 643 is coaxially connected with the third gear disc 641, so that the third gear disc 641 rotates in the same direction as the first rotation shaft 221; the third gear plate 641 and the fourth gear plate 642 are engaged for transmission, so that the fourth gear plate 642 and the third gear plate 641 reversely rotate, the fourth gear plate 642 is coaxially connected with the fourth chain wheel 644, and the fourth chain wheel 644 is in transmission connection with the second chain wheel 632 through the second chain 542, that is, the second chain wheel 632 reversely rotates with the first chain wheel 631, and the second chain wheel 632 drives the second rotating shaft 321 to rotate in the same direction, that is, the rear fork 320 and the front fork 220 reversely rotate, so that the synchronous steering in different directions is realized.

In some embodiments of the present invention, the control device 400 is a second steering handle 420, and the second steering handle 420 is coaxially connected to the third gear plate 641 to rotate the third gear plate 641.

Rotating the second steering handle 420 rotates the third gear wheel 641, and the third gear wheel 641 meshes with the fourth gear wheel 642 to rotate the fourth gear wheel 642 in the opposite direction. The third gear plate 641 transmits steering power to the first rotation shaft 221 through the third sprocket 643, the first chain 541, and the first sprocket 631; the fourth gear wheel 642 transmits steering power to the second rotating shaft 321 through the fourth sprocket 644, the second chain 542 and the second sprocket 632, so that the second steering handle 420 controls the front fork 220 and the rear fork 320 to steer in different directions and synchronously.

Referring to fig. 6, in some embodiments of the present invention, the driving device 500 includes a first driving motor 551 and a second driving motor 552, the reversing device 600 is a signal transceiver 650, the first driving motor 551 is disposed on the front drum base 210 and is in driving connection with the first rotating shaft 221, the second driving motor 552 is disposed on the rear drum base 310 and is in driving connection with the second rotating shaft 321, and the signal transceiver 650 is electrically connected with the first driving motor 551 and the second driving motor 552 to control the first driving motor 551 and the second driving motor 552 to rotate in different directions synchronously.

The signal transceiver 650 is configured to receive and transmit a control signal, and according to the control signal, the first driving motor 551 and the second driving motor 552 always keep rotating in different directions in synchronization, the first driving motor 551 drives the first rotating shaft 221 to rotate, and the second driving motor 552 drives the second rotating shaft 321 to rotate, so as to achieve the different directions in synchronization with the steering of the front fork 220 and the rear fork 320. The signal transceiver 650 may adopt a bluetooth control module, a ZigBee control module, or the like for transmitting and receiving signals.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.