CN211995943U

CN211995943U - Vehicle fulcrum system and vehicle comprising same

Info

Publication number: CN211995943U
Application number: CN202020661539.2U
Authority: CN
Inventors: 甘泉龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-11-24
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses an automobile-used fulcrum system reaches car including this system, automobile-used fulcrum system is including being used for connecting the car side, realizing carrying out the fulcrum device that balanced support to the car, the upside of fulcrum device is provided with the articulated portion that is used for realizing fulcrum device and car articulated to be connected, still includes drive arrangement and angle sensor, angle sensor installs on the fulcrum device, drive arrangement is used for driving the fulcrum device and winds articulated portion upset realizes the inclination adjustment of fulcrum device. The vehicle includes the fulcrum system. By adopting the scheme, the aims of reducing the rollover risk in the vehicle turning process and improving the turning stability can be fulfilled.

Description

Vehicle fulcrum system and vehicle comprising same

Technical Field

The utility model relates to a two wheeler field, concretely relates to automobile-used fulcrum system reaches car including this system.

Background

Common two-wheeled vehicles, including bicycles, electric bicycles, motorcycles, etc., are devices essential to two-wheeled vehicles. The existing two-wheel vehicle is provided with two wheels in tandem, when pedestrians need to be avoided or temporary braking is needed when traffic lights and other conditions need to be met, the two-wheel vehicle is firstly braked by a riding person, and one or two pedals are simultaneously used for the ground, so that the body of the riding person is ensured to be stable, and the vehicle is prevented from toppling over. The mode needs manpower for supporting, and for heavier vehicles such as a battery car or a motorcycle, the load is larger, and particularly, the heavy motorcycle is inconvenient for women to ride. And the foot soles of the riding personnel touch the ground, so that the risk of injury caused by rolling of other two-wheeled vehicles at the rear exists. Among the prior art, also there are some bicycles that are used for children to learn to use, this kind of bicycle is provided with two side wheels in rear wheel both sides, a children for preventing the school bus tumbles, but this kind of vehicle is for the convenience of people learns to ride the bicycle, its side wheel all is higher than the front and back tire, and its relative frame of side wheel is fixed completely, support the frame and the personnel of riding after empting certain angle, consequently, its side wheel can't laminate ground all the time in the normal riding process, not only can lead to turning the radian to be forced to increase, be unfavorable for turning round, and can't play any effect when meetting the road surface of jolting injustice, the two-wheeled vehicle also very easily leads to the vehicle to topple when suddenly meeting ground pit. In order to solve the above problems, the inventor of the present application has claimed "a self-balancing anti-roll structure of a two-wheeled vehicle and a two-wheeled vehicle based on the same" (CN209667264U, CN 109823450A). in the prior art, by providing a side wheel capable of ascending and descending along with the rise and fall of a road surface, a stopper mechanism capable of preventing the side wheel from moving upward, and the like for the two-wheeled vehicle, the purpose of improving the adaptability of the two-wheeled vehicle to the uneven ground and not requiring a rider to support the two-wheeled vehicle with feet during temporary parking is achieved. However, the applicant has found in the course of further research that the above technical solution has the following disadvantages in specific implementation: because the side wheel only can go up and down, when the two-wheeled vehicle turned, the automobile body leaned on, the perpendicular to ground can't be guaranteed to the side wheel, can't provide extra safety guarantee, when the speed of a motor vehicle was turned fast, the two-wheeled vehicle still had traditional risk of turning on one's side.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile-used fulcrum system reaches car including this system to solve the problem of the security when can't improve the two-wheeled vehicle and turn like the fulcrum device who prevents inclining the structure for the two-wheeled vehicle self-balancing among the prior art, reach the realization and reduce like the car turn in-process risk of turning on one's side, improve the purpose of turning stability.

The utility model discloses a following technical scheme realizes:

the utility model provides a vehicle fulcrum system and including car of this system, vehicle fulcrum system is including being used for connecting the fulcrum device that the side of the car, realization carried out balanced support to the car, the upside of fulcrum device is provided with the articulated portion that is used for realizing that fulcrum device and car are articulated to be connected, still includes drive arrangement and angle sensor, angle sensor installs on the fulcrum device, drive arrangement is used for driving the fulcrum device and winds the upset of articulated portion realizes the inclination adjustment of fulcrum device.

Aiming at the working mode of the self-balancing anti-tilting structure of the two-wheeled vehicle in the prior art, taking a patent application document with the publication number of CN209667264U as an example, the working mode of the anti-tilting structure is as follows: if the valve is opened, the oil cavity in the oil cylinder is communicated with the oil tank, and at the moment, the hydraulic oil on the upper part of the piston does not restrict the movement of the piston, so that under the action of the elastic part, the height of the side wheel relative to the frame can be matched with the fluctuation change of the ground, but if the vehicle turns and inclines, the vehicle stops or the speed is too slow, even if the movement of the side wheel is locked through the valve, at the moment, the anti-inclination structure on the acute angle side of the vehicle body is a rigid rod with shortened length and synchronously inclines along with the vehicle body, so that the function of the anti-inclination structure in the state is further strengthened.

To the above problem, the utility model provides an automobile-used fulcrum system reaches car including this system, the fulcrum system is when applying to on the vehicle like two-wheeled motorcycle, two-wheeled electric motor car, two-wheeled bicycle and other necessary through increasing anti-tilt structure, on structural design, through setting up articulated portion, angle sensor and drive arrangement, on current two-wheeled vehicle self-balancing anti-tilt structure and the basis of this anti-tilt structure's two-wheeled vehicle promptly, if articulate on the frame on the top of the connecting rod that will be used for connecting the side wheel or articulated portion itself is the revolute joint of fulcrum system, corresponding articulated portion can realize that the lower extreme side wheel of fulcrum device is for the frame directly or indirectly articulated connection can. In specific application: the upper end of the fulcrum device can be fixed at any position on the vehicle frame, and the technical personnel in the field of specific layout can carry out adaptive connection and selection according to the specific structure and the shape of the vehicle. Due to the hinge parts, the driving device works under the manual or automatic condition through the inclination angle data obtained by the angle sensor, and the inclination angle of the upper rod section of the corresponding fulcrum device is changed, so that the side wheels can rotate around the corresponding hinge point.

More specifically, in the structure of the conventional fulcrum device provided above, the side wheel located in the inside direction of the curve is compressed and retracted, and the side wheel located in the outside direction of the curve is inevitably further extended with respect to the link. At this moment, need be in inboard side wheel and carry out balanced support to the vehicle, because including angle sensor in this scheme, angle sensor is used for monitoring the angle of connecting rod axis, and above angle sensor can reflect the automobile body tilt state, and angle sensor's signal transmission to control module or show for riding passerby, realizes drive arrangement automatic control through control module, carries out drive arrangement manual control according to showing the value to reach and drive the connecting rod through drive arrangement and keep vertical or lower extreme to keeping away from the lopsidedness of vehicle all the time, can reach corresponding fulcrum device gesture adjustment, in order to strengthen the support ability. After that, the piston in the oil cylinder is locked by the corresponding cut-off valve, so that the aims of reducing the side turning risk in the turning process of the vehicle and improving the turning stability can be fulfilled.

The application of the angle sensor in the application is the prior art, such as common inclinometers and the like; the control module also can use the prior art, such as common single chip microcomputer, PLC and the like.

In specific operation, the timing of the intervention of the driving device on the posture of the fulcrum device is preferably set as real-time intervention in the driving process, so that when the vehicle brakes, the fulcrum device is in a state of synchronously inclining compared with the vehicle, and better support can be provided.

As a further technical scheme of the vehicle fulcrum system:

as a specific implementation scheme capable of realizing automatic control, the method comprises the following steps: the angle sensor is characterized by further comprising a control module, the signal input end of the control module is connected with the signal output end of the angle sensor, the signal input end of the driving device is connected with the signal output end of the control module, the control module collects angle signals from the angle sensor, and the signals output by the control module serve as control signals of the driving device.

The vehicle further comprises a sensor for detecting the state of the vehicle, wherein the sensor comprises one or two of the following sensors: the device comprises a level sensor for detecting the horizontal state of the vehicle and a motion sensor for detecting the motion state of the vehicle, wherein the signal output ends of the motion sensor and the level sensor are connected with the signal input end of a control module, and the control module collects motion signals from the motion sensor and the level sensor. When this scheme is specifically used, motion sensor can be: the sensor is used for checking the speed of the vehicle, the sensor is used for checking the braking state of the vehicle, if when the brake is closed, a rider encounters an emergency or needs to stop traffic lights and avoid pedestrians, the driving device does not work at the moment through the feedback of the motion sensor, and the driving device is prevented from being damaged or the driving capability of the driving device is considered to cause overhigh cost because the required force for sliding the side wheels is large under the condition that the speed of the vehicle is 0. The horizontal sensor is connected with the control module through signals, and if the situation that the vehicle frame is not horizontal or the inclination angle is too large is monitored under the situation of parking or running, the control module controls the states of the corresponding driving device and the oil cylinder to realize horizontal adjustment of the vehicle frame, so that the vehicle frame is ensured not to have side-tipping force or have smaller side-tipping force and the vehicle body is kept stable, and when a driver waits for a traffic light or other situations of temporary parking at an intersection, the legs do not need to be put on the ground from the vehicle and supported by the legs to keep the two-wheeled vehicle stable and upright, so that the convenience and the ease of the riding personnel are greatly improved; meanwhile, when emergency braking occurs, the rollover risk of the two-wheel vehicle is reduced, and the safety is improved.

Preferably, the following steps are set: still include the aggregate unit, the aggregate unit is used for realizing horizontal sensor operating condition control: if the linkage device is used for realizing the linkage of the vehicle brake state and the work of the horizontal sensor: only when the vehicle is braked, the horizontal sensor works, and the fulcrum system interferes with the horizontal posture of the vehicle frame at the moment, so that the interference caused by the work of the fulcrum system to the running of the vehicle is avoided.

As a concrete implementation mode of the fulcrum device, the fulcrum device is provided with the following components: the fulcrum device comprises a connecting rod, an oil cylinder, an oil tank which is an open container and a compression spring;

the connecting rod is coaxial with the oil cylinder, and the lower end of the connecting rod is fixedly connected with the upper end of the oil cylinder;

a piston rod of the oil cylinder faces downwards, and a side wheel is further mounted at the lower end of the piston rod;

the oil tank is connected with the oil cylinder through an oil pipe;

the oil pipe is also connected in series with a cut-off valve for controlling the on-off state of the oil pipe;

one end of the compression spring acts on a cylinder body of the oil cylinder, and the other end of the compression spring acts on a side wheel or a piston rod positioned on the outer side of the cylinder body. Preferably, the compression spring can be a coil spring sleeved on the piston rod.

For utilizing rotate, optimize the support ability of connecting rod to the car as far as possible, as angle sensor's concrete setting mode simultaneously, set up to: the upper end of the connecting rod is provided with a hinge hole as the hinge part, and the angle sensor is installed on the cylinder body or the connecting rod.

As a concrete implementation form of the driving device, the driving device is provided with the following components: the driving device is a telescopic rod, one end of the telescopic rod is hinged to the fulcrum device, and the other end of the telescopic rod is provided with a hinged portion used for achieving hinged connection of the telescopic rod and the vehicle.

More specifically: the telescopic rod is an electric push rod.

As described above in the application of the pivot system, the present invention further discloses a vehicle, which includes a frame and a wheel mounted on the frame, and includes any one of the pivot systems described above, the upper end of the pivot device is hinged to the frame, the driving device is mounted on the frame, and under the action of the driving device, the distance between the lower end of the pivot device and the wheel is adjustable in the width direction of the frame.

As a further technical solution of the vehicle:

the vehicle is a two-wheeled vehicle.

The side surfaces of the vehicle are provided with the pivot devices, and driving devices are arranged between the pivot devices and the vehicle frame.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

the utility model provides an automobile-used fulcrum system reaches car including this system, the fulcrum system is when applying to on the vehicle like two-wheeled motorcycle, two-wheeled electric motor car, two-wheeled bicycle and necessary through increasing anti-tilt structure, on structural design, through setting up articulated portion, angle sensor and drive arrangement on current two-wheeled vehicle self-balancing anti-tilt structure reaches the two-wheeled vehicle based on this anti-tilt structure promptly on the basis, if articulate the top of the connecting rod that will be used for connecting the side wheel on the frame or articulated portion itself is the revolute joint of fulcrum system, corresponding articulated portion can realize that the side wheel of fulcrum device lower extreme is connected for the frame is direct or indirect articulated can. In specific application: the upper end of the fulcrum device can be fixed at any position on the vehicle frame, and the technical personnel in the field of specific layout can carry out adaptive connection and selection according to the specific structure and the shape of the vehicle. Due to the hinge parts, the driving device works under the manual or automatic condition through the inclination angle data obtained by the angle sensor, and the inclination angle of the upper rod section of the corresponding fulcrum device is changed, so that the side wheels can rotate around the corresponding hinge point.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a partial schematic structural view of an embodiment of a vehicle fulcrum system according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of a specific application of the vehicular fulcrum system according to the present invention;

fig. 3 is a schematic structural diagram of a specific embodiment of a specific application of the vehicular fulcrum system, which is different from fig. 2 in that the layout of the fulcrum system on the frame is different.

Reference numbers and corresponding part names in the drawings:

the device comprises 1-side wheels, 2-connecting rods, 3-angle sensors, 4-wheels, 5-telescopic rods, 6-horizontal sensors, 7-oil cylinders, 8-oil tanks and 9-cut-off valves.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1:

as shown in fig. 1 to 3, the vehicle fulcrum system includes a fulcrum device for connecting to a side surface of a vehicle and realizing balanced support of the vehicle, a hinge portion for realizing hinge connection of the fulcrum device and the vehicle is disposed on an upper side of the fulcrum device, and further includes a driving device and an angle sensor 3, the angle sensor 3 is mounted on the fulcrum device, and the driving device is used for driving the fulcrum device to turn over around the hinge portion to realize inclination angle adjustment of the fulcrum device.

Aiming at the working mode of the self-balancing anti-tilting structure of the two-wheeled vehicle in the prior art, taking a patent application document with the publication number of CN209667264U as an example, the working mode of the anti-tilting structure is as follows: if the valve is opened, the oil cavity in the oil cylinder 7 is communicated with the oil tank 8, and at the moment, the hydraulic oil on the upper part of the piston does not restrict the movement of the piston, so that under the action of the elastic part, the height of the side wheel 1 relative to the frame can be matched with the fluctuation change of the ground, but if the vehicle turns and inclines, the vehicle stops or the speed is too slow, even if the movement of the side wheel 1 is locked through the valve, at the moment, the anti-tilt structure on the acute angle side of the vehicle body is a rigid rod with shortened length and synchronously tilts along with the vehicle body, so that the function of the anti-tilt structure in the state is to be further strengthened.

To the above problem, the utility model provides an automobile-used fulcrum system reaches car including this system, the fulcrum system is when applying to on the vehicle like two-wheeled motorcycle, two-wheeled electric motor car, two-wheeled bicycle and other necessary through increasing anti-tilt structure, on structural design, through setting up articulated portion, angle sensor 3 and drive arrangement, on current two-wheeled vehicle self-balancing anti-tilt structure and the two-wheeled vehicle's based on this anti-tilt structure basis promptly, if the top that will be used for connecting rod 2 of side wheel 1 articulates on the frame or articulated portion itself is the revolute joint of fulcrum system, corresponding articulated portion can realize that fulcrum device lower extreme side wheel 1 is directly or indirectly articulated to connect for the frame can. In specific application: the upper end of the fulcrum device can be fixed at any position on the vehicle frame, and the technical personnel in the field of specific layout can carry out adaptive connection and selection according to the specific structure and the shape of the vehicle. Due to the hinge parts, the driving device works under the manual or automatic condition through the inclination angle data obtained by the angle sensor 3, and the inclination angle of the upper rod section of the corresponding fulcrum device is changed, so that the side wheels 1 can rotate around the corresponding hinge point, and thus, when the two-wheel vehicle comprising the system turns, the corresponding rotatable rod section of the fulcrum device at the acute angle side of the vehicle rotates to drive the side wheels 1 to be outwards opened, and the aim of optimizing the supporting performance of the two-wheel vehicle is fulfilled.

More specifically, in the structure of the conventional fulcrum device provided above, the side wheel 1 located in the inside direction of the curve is compressed and retracted, and the side wheel 1 located in the outside direction of the curve is inevitably further extended with respect to the link 2. At this moment, need be in inboard side wheel 1 and carry out balanced support to the vehicle, because including angle sensor 3 in this scheme, angle sensor 3 is used for monitoring the angle of 2 axes of connecting rod, and above angle sensor 3 can reflect the automobile body tilt state, and angle sensor 3's signal transmission to control module or show for the passerby of riding, realizes drive arrangement automatic control through control module, carries out drive arrangement manual control according to the value that shows to reach and drive connecting rod 2 through drive arrangement and keep vertical throughout or the lower extreme to keeping away from the lopsidedness of vehicle, can reach corresponding fulcrum device gesture adjustment, in order to strengthen the holding power. After that, the piston in the oil cylinder 7 is locked by the corresponding cut-off valve, so that the aims of reducing the rollover risk in the turning process of the vehicle and improving the turning stability can be fulfilled.

The application of the angle sensor 3 in the present application is the prior art, such as a common inclinometer and the like; the control module also can use the prior art, such as common single chip microcomputer, PLC and the like.

Example 2:

as shown in fig. 1 to fig. 3, on the basis of embodiment 1, as a specific implementation scheme capable of implementing automatic control, the following is set: still include control module, control module's signal input part meets with angle sensor 3's signal output part, drive arrangement's signal input part meets with control module's signal output part, control module gathers the angle signal who comes from angle sensor 3, the signal of control module output is as drive arrangement's control signal.

The vehicle further comprises a sensor for detecting the state of the vehicle, wherein the sensor comprises one or two of the following sensors: the device comprises a horizontal sensor for detecting the horizontal state of the vehicle and a motion sensor 6 for detecting the motion state of the vehicle, wherein the signal output ends of the motion sensor 6 and the horizontal sensor are connected with the signal input end of a control module, and the control module collects motion signals from the motion sensor 6 and the horizontal sensor. When the scheme is in specific use, the motion sensor 6 can be: the sensor is used for checking the speed of the vehicle, the sensor is used for checking the braking state of the vehicle, if when the brake is closed, a rider encounters an emergency or needs to stop traffic lights and avoid pedestrians, and at the moment, the driving device does not work through the feedback of the motion sensor 6, so that the situation that the driving device is damaged or the driving device cost is overhigh due to the fact that the driving force of the driving device is considered because the side wheel 1 only needs large force for sliding under the condition that the speed of the vehicle is 0 is avoided. The horizontal sensor for detecting the horizontal state of the vehicle body can be arranged in parallel with the motion sensor 6 under the condition that the driving capability of the driving device is enough, the horizontal sensor is in signal connection with the control module, if the vehicle frame is monitored to be not horizontal or the inclination angle is too large under the condition of parking or driving, the control module controls the state of the corresponding driving device and the oil cylinder 7 to realize the horizontal adjustment of the vehicle frame, thereby ensuring that the vehicle body has no side-tipping force or smaller side-tipping force and keeping the vehicle body stable when the vehicle body is parked temporarily, so that when a driver waits for a traffic light or other temporary parking conditions at an intersection, the driver does not need to put two legs on the ground from the vehicle and does not need to use the two legs for supporting so as to keep the two-wheel vehicle stable and upright, and the convenience and the ease degree of the riding personnel are greatly improved; meanwhile, when emergency braking occurs, the rollover risk of the two-wheel vehicle is reduced, and the safety is improved.

As a concrete implementation mode of the fulcrum device, the fulcrum device is provided with the following components: the fulcrum device comprises a connecting rod 2, an oil cylinder 7, an oil tank 8 which is an open container and a compression spring;

the connecting rod 2 is coaxial with the oil cylinder 7, and the lower end of the connecting rod 2 is fixedly connected with the upper end of the oil cylinder 7;

a piston rod of the oil cylinder 7 faces downwards, and a side wheel 1 is further mounted at the lower end of the piston rod;

the oil tank 8 is connected with the oil cylinder 7 through an oil pipe;

one end of the compression spring acts on the cylinder body of the oil cylinder 7, and the other end of the compression spring acts on the side wheel 1 or a piston rod positioned outside the cylinder body. Preferably, the compression spring can be a coil spring sleeved on the piston rod.

In order to utilize the rotation, the supporting capacity of the connecting rod 2 for the vehicle is optimized as much as possible, and meanwhile, as a specific setting mode of the angle sensor 3, the following setting modes are set: the upper end of the connecting rod 2 is provided with a hinge hole as the hinge portion, and the angle sensor 3 is installed on the cylinder body or the connecting rod 2.

As a concrete implementation form of the driving device, the driving device is provided with the following components: the driving device is a telescopic rod 5, one end of the telescopic rod 5 is hinged to the fulcrum device, and the other end of the telescopic rod 5 is provided with a hinged portion for realizing the hinged connection of the telescopic rod 5 and the vehicle.

More specifically: the telescopic rod 5 is an electric push rod.

Example 3:

as shown in fig. 1 to fig. 3, as described in the applications of

embodiments

1 and 2 to the pivot system, this embodiment provides a vehicle, which includes a frame and a wheel 4 mounted on the frame, and includes the pivot system as described in any one of the above embodiments, an upper end of the pivot device is hinged to the frame, the driving device is mounted on the frame, and under the action of the driving device, a distance between a lower end of the pivot device and the wheel 4 in a width direction of the frame is adjustable.

More specifically:

the vehicle is a two-wheeled vehicle.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. The utility model provides a vehicle fulcrum system, is including being used for connecting the fulcrum device that the side of the car, realization carried out the balanced support to the car, its characterized in that, the upside of fulcrum device is provided with the articulated portion that is used for realizing that fulcrum device and car are articulated to be connected, still includes drive arrangement and angle sensor (3), angle sensor (3) are installed on the fulcrum device, drive arrangement is used for driving the fulcrum device around articulated portion upset realizes the inclination adjustment of fulcrum device.

2. The vehicle fulcrum system according to claim 1, further comprising a control module, wherein a signal input end of the control module is connected to a signal output end of the angle sensor (3), a signal input end of the driving device is connected to a signal output end of the control module, the control module collects an angle signal from the angle sensor (3), and a signal output by the control module is used as a control signal of the driving device.

3. The vehicular fulcrum system according to claim 2, further comprising a sensor for detecting a vehicle state, the sensor including one or both of the following sensors: the device comprises a horizontal sensor for detecting the horizontal state of the vehicle and a motion sensor (6) for detecting the motion state of the vehicle, wherein the signal output ends of the motion sensor (6) and the horizontal sensor are connected with the signal input end of a control module, and the control module collects motion signals from the motion sensor (6) and the horizontal sensor.

4. The vehicular fulcrum system according to claim 1, wherein the fulcrum device comprises a connecting rod (2), an oil cylinder (7), an oil tank (8) which is an open container and a compression spring;

the connecting rod (2) is coaxial with the oil cylinder (7), and the lower end of the connecting rod (2) is fixedly connected with the upper end of the oil cylinder (7);

a piston rod of the oil cylinder (7) faces downwards, and a side wheel (1) is further mounted at the lower end of the piston rod;

the oil tank (8) is connected with the oil cylinder (7) through an oil pipe;

the oil pipe is also connected in series with a cut-off valve (9) for controlling the on-off state of the oil pipe;

one end of the compression spring acts on a cylinder body or a connecting rod (2) of the oil cylinder (7), and the other end of the compression spring acts on the side wheel (1) or a piston rod positioned outside the cylinder body.

5. A vehicular fulcrum system according to claim 4, wherein the upper end of the connecting rod (2) is provided with a hinge hole as the hinge portion, and the angle sensor (3) is mounted on the cylinder or connecting rod (2).

6. The vehicle fulcrum system according to claim 1, wherein the driving device is a telescopic rod (5), one end of the telescopic rod (5) is hinged to the fulcrum device, and the other end of the telescopic rod (5) is provided with a hinge portion for realizing the hinged connection of the telescopic rod (5) and the vehicle.

7. The vehicular fulcrum system according to claim 6, wherein the telescopic rod (5) is an electric push rod.

8. Vehicle comprising a frame and a wheel (4) mounted on the frame, characterized in that it further comprises a pivot system according to any one of claims 1 to 7, the upper end of the pivot device being hingedly connected to the frame, the drive device being mounted on the frame and the lower end of the pivot device being adjustable in relation to the wheel in the width direction of the frame by the action of the drive device.

9. The cart of claim 8, wherein the cart is a two-wheeled cart.

10. A vehicle according to claim 8, wherein the fulcrum means is provided on each side of the vehicle, and drive means is provided between each fulcrum means and the frame.