CN106627818A - Novel multifunctional vehicle - Google Patents

Abstract

The invention discloses a novel multifunctional vehicle. The novel multifunctional vehicle is composed of a cockpit, a connection assembly and a drive unit. The cockpit is connected with three drive units through three connecting components, and the cockpit is driven to move under the action of the drive unit. The cockpit has six degrees of freedom. The new multi-purpose vehicle has good mobility and attitude adjustment capabilities, and can move in any direction in the plane; the height and angle of the cockpit can be changed, which greatly expands the driver's field of vision and improves driving safety; On uneven ground and slopes, the cockpit can be kept in a horizontal state through attitude adjustment, providing a comfortable driving environment for the driver. After being equipped with sensors and an automatic control system, the new multi-purpose vehicle can realize unmanned driving and effectively complete tasks such as movement, handling, and investigation.

Description

new utility vehicle

technical field

The invention belongs to the field of vehicles, in particular to a novel multifunctional vehicle with good mobility and attitude adjustment capabilities.

Background technique

Transportation is an indispensable part of human life, which greatly promotes people's communication, promotes economic development, and improves work efficiency. Automobile is a very popular land vehicle at present. It has a history of hundreds of years. It has been developed day by day and is convenient and quick to use. However, there are some problems at the same time. For example, the car can only move forward along the current direction of the front wheels. If it wants to change direction, it needs to adjust to the target direction of travel through steering before moving forward, and it cannot move in any direction. This problem is particularly prominent when parking, turning around, etc., which not only increases the difficulty of driving, but also easily causes traffic jams on narrow roads; in addition, although many cars have shock absorption systems, they will also have problems when driving on rough ground. Vigorous bumps, when on a slope, it can only maintain a tilted state, making the driver and passengers uncomfortable.

Contents of the invention

The present invention aims to solve one of the technical problems existing in the prior art at least to a certain extent. In order to improve the mobility and attitude adjustment ability of land vehicles, a new multi-purpose vehicle with good mobility and attitude adjustment ability is proposed.

According to the new multifunctional vehicle of the present invention, it comprises: a cockpit, a plurality of connection assemblies and a plurality of drive units, the plurality of connection assemblies are respectively connected to the cockpit, each of the connection assemblies is connected to a A driving unit for driving; wherein, each of the connecting assemblies includes: a connecting rod, the two ends of which are respectively a near-cabin end and a near-wheel end, and the near-cabin end is rotatably connected to the cockpit Above, the end near the wheel is connected to the corresponding drive unit through a universal joint; telescopic cylinder, the two ends of the telescopic cylinder in the telescopic direction are respectively the end near the cabin and the end near the wheel, and the end near the cabin is rotatably connected to the cockpit, and the wheel-adjacent end is rotatably connected to the wheel-near end of the connecting rod; wherein, the cabin-near end is spaced from the cabin-side end, and the The connecting rod, the telescopic cylinder, and the part of the cockpit between the near-cabin end and the near-cabin end constitute a stable triangular linkage mechanism; in addition, each of the universal hinges can rotate The ground is connected to the corresponding drive unit.

According to the new multifunctional vehicle of the embodiment of the present invention, by connecting a plurality of connecting components to the cockpit, the posture and height of the cockpit can be adjusted with the cooperation of the multiple connecting components, and the overall balance can be maintained. The new multi-purpose vehicle has good mobility and attitude adjustment capabilities, and keeps the cockpit level even on uneven ground or slopes, making the driver stable and in a comfortable driving state.

In some embodiments, each of the driving units includes: a wheel frame, the universal joint is rotatably connected to the top of the wheel frame; wheels, the wheels are arranged at the bottom of the wheel frame.

In some embodiments, each of the driving units is provided with at least two parallel wheels, and the driving unit realizes steering through the differential speed between the two wheels.

Specifically, the bottom end of the drive unit is also provided with universal wheels for auxiliary support.

In some embodiments, the telescopic cylinder is a damping cylinder.

In some embodiments, the new utility vehicle is provided with three connecting assemblies, and the three connecting assemblies are arranged around the cockpit.

In some embodiments, each of said connecting rods is formed in a V-shape, one end of said connecting rod at the opening of the V-shape constitutes said near-cabin end, and one end of said connecting rods where the V-shape intersects constitutes said near-wheel end. end.

In some embodiments, the cockpit includes: a cabin body, on which the plurality of connecting components are connected; a seat, the seat is rotatably arranged in the cabin body; an operator, The manipulator is arranged in the cabin, and the manipulator is used to control the driving condition of each driving unit.

In some embodiments, the cockpit may be an open cabin or a closed cabin.

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

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and comprehensible from the description of the embodiments in conjunction with the following drawings, wherein:

FIG. 1 is a schematic structural view of a new multi-purpose vehicle according to Embodiment 1 of the present invention.

Fig. 2 is a schematic structural view of a new multi-purpose vehicle according to Embodiment 2 of the present invention.

Fig. 3 is a schematic structural view of a new multi-purpose vehicle according to Embodiment 3 of the present invention.

Fig. 4 is a schematic structural view of a new multi-purpose vehicle according to Embodiment 4 of the present invention.

FIG. 5 is a schematic structural diagram of the driving unit in FIG. 2 and FIG. 4 .

Reference signs:

A: cockpit;

A1: Cabin; A11: Open cabin; A12: Closed cabin; A2: Seat; A3: Manipulator; A4: First rotary pair; A5: Second rotary pair;

B: connection components;

B1: the third rotating pair; B2: the fifth rotating pair; B3: telescopic cylinder; b31: near the cabin end; b32: near the wheel end; B4: universal hinge; B5: connecting rod; b51: near the cabin end; b52: near wheel end; B6: the fourth revolving pair;

C: drive unit;

C1: rotating pair; C2: wheel frame; C3: wheel; C31: crawler wheel; C32: driving wheel; C33: auxiliary wheel.

detailed description

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

A new utility vehicle according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

According to the new multi-purpose vehicle of the embodiment of the present invention, as shown in Fig. 1-Fig. 4, comprise: cockpit A, a plurality of connection assemblies B and a plurality of driving units C, a plurality of connection assemblies B are respectively connected on the cockpit A , each connection assembly B is connected to a driving unit C for driving.

Referring to Fig. 1, each connection assembly B includes: a connecting rod B5 and a telescopic cylinder B3, the two ends of the connecting rod B5 are respectively the near-cabin end b51 and the near-wheel end b52, and the near-cabin end b51 is rotatably connected to the cockpit A On, the near-wheel end b52 is connected to the corresponding drive unit C through the universal joint B4. The two ends of the telescopic cylinder B3 in the telescopic direction are the cabin end b31 and the wheel end b32 respectively. The cabin end b31 is rotatably connected to the cockpit A, and the wheel end b32 is rotatably connected to the near end of the connecting rod B5. on the wheel end b52. Wherein, the near-cabin end b51 and the near-cabin end b31 are spaced apart, and the connecting rod B5, telescopic cylinder B3 and the part of the cockpit A between the near-cabin end b51 and the near-cabin end b31 form a stable triangular linkage mechanism.

In addition, each universal hinge B4 is rotatably connected to the corresponding drive unit C.

Specifically, as shown in Figure 1, the cockpit A is provided with a first swivel pair A4 and a second swivel pair A5, the connecting rod B5 is provided with a third swivel pair B1 near the cabin end b51, and the telescopic cylinder B3 is located near the cabin. A fourth rotating pair B6 is provided at the end b31. The first swivel pair A4 cooperates with the third swivel pair B1 so that the connecting rod B5 is rotatably connected to the cockpit A. The second swivel pair A5 cooperates with the fourth swivel pair B6, so that the telescopic cylinder B3 is rotatably connected to the cockpit A. In addition, the telescopic cylinder B3 passes through the fifth rotating pair B2 at the end b32 facing the wheel, so that the telescopic cylinder B3 is rotatably connected to the connecting rod B5.

In the embodiment of the present invention, each connecting assembly B can control the length of the telescopic cylinder B3 through the driving condition of the driving unit C. For example, when a certain driving unit C is far away from the cockpit A, the driving unit C will connect the corresponding connecting The telescopic cylinder B3 on the component B is elongated, otherwise the driving condition of the drive unit C can also shorten the length of the corresponding telescopic cylinder B3. After the length of the telescopic cylinder B3 changes, the triangle shape and size of the connection assembly B can be adjusted, so that the angle of the cockpit A can be adjusted. And when the connecting rod B5 of each connecting assembly B is more vertically arranged, the height of cockpit A is higher, conversely when the connecting rod B5 of each connecting assembly B is arranged more horizontally, the height of cockpit A is lower, thus it can be seen that by By adjusting the length of the telescopic cylinder B3 of multiple connecting components B, the height of the cockpit A can also be adjusted.

Wherein, since the attitude angle of the cockpit A can be adjusted, if each connecting assembly B is only connected to the driving unit C through a common rotating hinge, it cannot be guaranteed that each driving unit C can grasp the road surface. To solve this problem, in the embodiment of the present invention, each connection assembly B is connected to the drive unit C through a universal joint B4, so that the drive unit C has three rotational degrees of freedom relative to the connection assembly B, ensuring that each drive unit C Both grip the ground and move well.

In addition, as shown in Figure 1, each drive unit C is provided with a rotating pair C1, and each universal hinge B4 is connected to the corresponding rotating pair C1, so that each universal hinge B4 is rotatably connected to the corresponding on drive unit C. The arrangement of the revolving pair C1 can reduce redundancy and ensure the free steering of the drive unit C.

According to the new multi-purpose vehicle of the embodiment of the present invention, by connecting multiple connecting components B to the cockpit A, the attitude and height of the cockpit A can be adjusted with the cooperation of the multiple connecting components B, and the balance of the whole vehicle can be maintained. The new multi-purpose vehicle has good mobility and attitude adjustment capabilities. Even on rough ground or slopes, it still maintains the cockpit A level, making the driver stable and in a comfortable driving state.

In the embodiment of the present invention, the cockpit A can have various structural forms. For example, the cockpit A can include a cabin body A1, and a plurality of connecting components B are all connected to the cabin body A1, and the cockpit A can be set as an unmanned cabin. , that is, the new multi-purpose vehicle can be an unmanned vehicle. The cabin body A1 of this cockpit A can be the open cabin A11 shown in Figure 1, also can be the closed cabin A12 shown in Figure 3, this cockpit A can be used as people's means of transportation, also can be used for moving articles, Devices such as cameras and detectors can also be installed for detection, investigation, etc.

For another example, as shown in Figure 1, the cockpit A may include: a cabin body A1, a seat A2 and an operator A3, a plurality of connecting assemblies B are connected to the cabin body A1, and the seat A2 is rotatably arranged on the cabin body In A1, the operator A3 is set in the cabin A1, the driver can control the driving condition of each drive unit C through the operator A3, thereby controlling the telescopic length of the telescopic cylinder B3 in each connection assembly B, of course the operator A3 It is also possible to manually control vehicle driving and posture adjustment by controlling the driving conditions of each driving unit C. The cabin body A1 of the cockpit A can be the open cabin A11 shown in FIG. 1 , or the closed cabin A12 shown in FIG. 3 .

Certainly, the above-mentioned two kinds of cockpits A can also be provided with a controller, and the controller is used to control the running state of the driving unit C. Regardless of whether it is an unmanned remote control car or a manually operated car, the controller needs to perform calculations according to the remote control command or the driving command given by the manipulator A3. Specifically, the controller uses inverse kinematics to calculate the movement that should be realized by the drive unit C, and gives control instructions to control the movement of the drive unit C. The movement of the cockpit A and the angle of the cockpit A can be driven by the movement of the driving unit C, and the cockpit A can realize flexible movement and posture adjustment.

In the embodiment of the present invention, the number of connecting assemblies B on the new multifunctional vehicle is not limited, and the new multifunctional vehicle may be provided with three or more connecting assemblies B, for example, when the left and right sides of the cockpit A are respectively provided with two When connecting components B, it is assumed that the four connecting components B are symmetrically arranged left and right. With the cooperation of the four connecting components B, not only the height of the cockpit A can be adjusted, but also the contrast height of the left and right sides of the cockpit A can be adjusted. For example, if the left side is slightly higher, the cockpit A is slightly tilted to the right, otherwise the cockpit A is slightly tilted to the left.

In a preferred embodiment of the present invention, the novel utility vehicle is provided with three connection assemblies B, and the three connection assemblies B are arranged around the cockpit A. The three connection assemblies B are preferably arranged along three corners of an equilateral triangle, and the cockpit A has better stability in the state of three legs, avoiding the phenomenon of rollover caused by operation errors.

In the embodiment of the present invention, in a plurality of connecting assemblies B, each connecting rod B5 is formed into a V shape. As shown in FIG. One end where the V shapes intersect constitutes the wheel-near end b52. That is to say, each connecting rod B5 is composed of two rods, one end of the two rods is connected, and the other end is spaced to form a V shape, and the spaced ends of the two rods form a V-shaped opening, and the spaced ends of the two rods pass through The third revolving pair B1 is rotatably connected to the cockpit A, and one end connected by the two rods is connected to the telescopic cylinder B3. In this way, the V-shaped connecting rod B5, the telescopic cylinder B3 and the cockpit A together form a tetrahedron, and each tetrahedron Each surface is a stable triangular structure, which can effectively suppress the attitude mutation of the cockpit A during the attitude adjustment process and improve the driving safety.

Preferably, the telescopic cylinder B3 is a damping cylinder, which plays a protective role, and the damping cylinder can also increase the rigidity of the mechanism and improve the shock absorption effect.

In an embodiment of the present invention, as shown in Figure 1, each drive unit C includes: a wheel frame C2 and a wheel C3, the universal joint B4 is rotatably connected to the top of the wheel frame C2, and the wheel C3 is located on the wheel frame The bottom of C2. Driving through this common wheel-driven structure, the design cost is low, and the structure is easy to implement. Of course, we do not rule out that under the development of future technology, the drive unit C can also travel by means of electromagnetic levitation.

In the structure driven by wheels in the embodiment of the present invention, at least two parallel wheels C3 can be provided on each driving unit C, and the driving unit C can turn through the differential speed between the two wheels C3. Using differential steering, the structure of the whole vehicle is relatively simple.

It can be understood that if the driving device C uses the wheels C3 to drive, there are many types of the wheels C3. For example, as shown in FIG. 1 , the wheel C3 on each wheel frame C2 is a crawler wheel C31, and the wheel frame C2 is equivalent to a crawler-type mobile platform. Also for example, as shown in FIG. 2 , the wheel C3 on each wheel frame C2 can be the most common round wheel, and the drive unit C can be called an omnidirectional mobile unit.

In some specific embodiments, as shown in Figure 1, the wheel C3 of at least one drive unit C is a crawler wheel C31, and there are two crawler wheels C31 on one drive unit C and are arranged in parallel, and the drive unit C passes through two crawler belts. The differential speed between the formula wheels C31 realizes steering.

The crawler wheel C31 can increase the contact area and reduce the pressure on the ground, so that the new multi-purpose vehicle can work smoothly on the soft ground. Such a new multifunctional vehicle can be used in areas with poor road conditions such as fields and construction sites, and has strong environmental adaptability.

In some other embodiments, as shown in FIG. 2, at least one driving unit C includes two driving wheels C32 arranged in parallel, and the two driving wheels C32 are driven by two motors, and the driving unit C passes between the two driving wheels C32. The differential speed realizes the steering. This drive wheel C32 is a wheel used by common road vehicles, and has low cost and less damage to the road surface.

Specifically, the bottom end of the driving unit C provided with the driving wheel C32 can also be provided with an auxiliary wheel C33 which plays an auxiliary supporting role. On the ground, the drive unit C can rotate smoothly. Wherein, the quantity of the universal wheels may not be limited.

For ease of understanding, the following will take a utility vehicle with three connecting components B as an example to describe the overall structure of the new utility vehicle.

In some embodiments, the novel utility vehicle includes a cockpit A, a connection assembly B and a drive unit C, and the cockpit A is connected to three drive units C through three connection assemblies B. There are seat A2, manipulator A3 and controller in the cockpit A. The manipulator A3 can control the direction of the car body, the height and angle of the cockpit A; each connecting component B includes a connecting rod B5 and a damping cylinder; Each drive unit C can move in any direction in a two-dimensional plane, which can be realized by a crawler mobile platform or an omnidirectional wheel mobile platform. After the operator A3 gives a driving command, the controller calculates the motion trajectory of the drive unit C through inverse kinematics and controls the drive unit C to move.

Due to the particularity of the connection assembly B and drive unit C of this new multi-purpose vehicle and the connection method, the cockpit A has three degrees of freedom of movement and three degrees of freedom of rotation, so the driver can also adjust the cockpit according to his own driving habits A to any comfortable angle, and can move in any direction within the plane.

Since the height and attitude of the cockpit A are adjustable, the driver has a wider field of vision and the driving safety is greatly improved. On uneven ground and slopes, the cockpit A can be kept in a horizontal state through attitude adjustment, providing a comfortable driving environment for the driver.

The new multi-purpose vehicle has good mobility and attitude adjustment capabilities. After being equipped with sensors and an automatic control system, the new multi-purpose vehicle can realize unmanned driving and can effectively complete tasks such as movement, handling, and investigation.

The specific structures of the four embodiments are described below with reference to FIGS. 1-4 .

Embodiment one shown in Fig. 1:

The new multi-purpose vehicle shown in Figure 1 is composed of three parts: cockpit A, connection assembly B and drive unit C. The composition of cockpit A includes: cabin body A1, seat A2, manipulator A3, first swivel pair A4 and second swivel pair A5. Cabin A1 can accommodate the driver and set other components. The seat A2 is rotatable relative to the cabin A1, which is convenient for the driver to get in and out of the car; the driver gives driving instructions through the manipulator A3, controls the movement and steering of the car body, and adjusts the height and angle of the cockpit A. The cockpit A is connected to the connection assembly B through the first swivel pair A4 and the second swivel pair A5.

The connecting assembly B consists of: the third rotating pair B1, the fifth rotating pair B2, the damping cylinder, the universal hinge B4, the V-shaped connecting rod B5 and the fourth rotating pair B6. The V-shaped connecting rod B5 of the connection assembly B is connected to the cockpit A through the third rotating pair B1; the damping cylinder of the connecting assembly B is connected to the cockpit A through the fourth rotating pair B6; the V-shaped connecting rod B5 is connected to the cockpit A through the fifth rotating pair B2 It is connected with the damping cylinder; the connecting assembly B is connected with the driving unit C through the universal joint B4 and the rotating pair C1. The damping cylinder plays a protective role. The V-shaped connecting rod B5, the damping cylinder and the cockpit A together form a stable triangular structure, which can effectively suppress the sudden change of the attitude of the cockpit A during the attitude adjustment process, and improve driving safety.

The driving unit C is composed of a crawler-type mobile platform, and the driving unit C is connected to the connecting assembly B through the rotating pair C1. The crawler mobile platform can move in any direction in the plane, that is, it is essentially a plane two-degree-of-freedom mechanism. The tracked vehicle can turn through the differential speed of the tracks on both sides. The drive unit C has a good load capacity and is highly adaptable to harsh terrains such as the field.

Through the connection of the above components, the new multi-purpose vehicle essentially becomes a mechanism with six degrees of freedom. After the initial state is given, the movement of the three drive units C determines the position and attitude of the cockpit A. The target pose of the cockpit A can be given by the manipulator A3, that is, the target point of motion and the angle and posture to be achieved, and then passed to the controller. The controller calculates the motion trajectory of the drive unit C according to inverse kinematics, and then controls The movement and rotation of the cockpit A can be realized by the movement of the three driving units C. On rough ground, given the command to maintain the horizontal attitude of the cockpit A, the coordinated movement of the three driving units C can be controlled to keep the cockpit A in the horizontal attitude. When moving on a slope, adjusting the pitch angle of the cockpit A can also keep the cockpit A in a horizontal posture, providing the driver with a comfortable driving environment.

Embodiment two shown in Fig. 2 and Fig. 5:

The structure of the new multi-purpose vehicle of the second embodiment is basically the same as that of the new multi-purpose vehicle of the first embodiment, and the same parts will not be repeated here.

The difference is that, as shown in FIG. 2 and FIG. 5 , the structure of the driving unit C in the second embodiment is changed compared with the first embodiment.

The new utility vehicle uses an omnidirectional mobile unit as the drive unit C. The omnidirectional mobile unit is composed of a wheel frame C2, a driving wheel C32 and an auxiliary wheel C33. The two driving wheels C32 are respectively driven by two motors, and the rotation of the wheel frame C2 can be realized through the differential speed of the two driving wheels C32. The auxiliary wheel C33 is a universal wheel, plays an auxiliary supporting role, and moves passively with the vehicle body, and the number can be one or more, as shown in Figure 5 is the situation of using two auxiliary wheels C33. The omnidirectional mobile unit can realize movement along any direction in the plane. Driven by the three omnidirectional mobile units, the movement and rotation of the cockpit A can be realized.

Embodiment three shown in Fig. 3:

The structure of the new multi-purpose vehicle of the third embodiment is basically the same as that of the new multi-purpose vehicle of the first embodiment, and the same parts will not be repeated here.

The difference is that, as shown in Figure 3, the structure of the cockpit A in the third embodiment has changed. The cockpit A of the new utility vehicle is enclosed and can accommodate multiple drivers and passengers. The cabin body A1 of the cockpit A is a 14-sided body, and the cross-section cut along the plane parallel to the upper and lower bottom surfaces is a regular hexagon. The new multi-purpose vehicle has good mobility and attitude adjustment capabilities, and has a stronger accommodation capacity, which can provide a more comfortable driving environment.

Embodiment four shown in Fig. 4:

The structure of the new multifunctional vehicle in Embodiment 4 is basically the same as that in Embodiment 3, and the same parts will not be repeated here.

The difference is that, as shown in FIG. 5 , the structure of the driving unit C in the fourth embodiment is changed. The cockpit A of the new utility vehicle is enclosed and can accommodate multiple drivers and passengers. The drive unit C of the new utility vehicle uses an omnidirectional mobile unit. The omnidirectional mobile unit is composed of a wheel frame C2, a driving wheel C32 and an auxiliary wheel C33. The two driving wheels C32 are respectively driven by two motors, and the rotation of the wheel frame C2 can be realized through the differential speed of the two driving wheels C32. The auxiliary wheel C33 is a universal wheel, plays an auxiliary supporting role, and moves passively with the vehicle body, and the number can be one or more, as shown in Figure 5 is the situation of using two auxiliary wheels C33. The omnidirectional mobile unit can realize movement along any direction in the plane. Driven by the three omnidirectional mobile units, the movement and rotation of the cockpit A can be realized.

In describing the present invention, it is to be understood that the terms "centre", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientations or positional relationships indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , or integrated; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations.

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

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the invention is defined by the claims and their equivalents.

Claims (9)

1. A novel multifunctional vehicle, characterized in that it comprises: a cockpit, a plurality of connection assemblies and a plurality of drive units, and the plurality of connection assemblies are respectively connected on the cockpit, each of the connection assemblies connecting a drive unit for travel; wherein each of said connecting assemblies includes: A connecting rod, the two ends of the connecting rod are respectively a near-cabin end and a near-wheel end, the near-cabin end is rotatably connected to the cockpit, and the near-wheel end is connected to the corresponding on the drive unit; A telescopic cylinder, the two ends of the telescopic cylinder in the telescopic direction are respectively the end facing the cabin and the end facing the wheel, the end facing the cabin is rotatably connected to the cockpit, and the end facing the wheel is rotatably connected to the On the near-wheel end of the connecting rod; wherein, the near-cabin end is spaced apart from the near-cabin end, and the connecting rod, the telescopic cylinder and the cockpit are located between the near-cabin end and the The part between the ends of the cabin constitutes a stable triangular linkage; in addition, Each universal hinge is rotatably connected to the corresponding drive unit. 2. The new multi-purpose vehicle according to claim 1, wherein each said drive unit comprises: a wheel frame, the universal hinge is rotatably connected to the top of the wheel frame; wheels, the wheels are arranged at the bottom of the wheel frame. 3. The new multi-purpose vehicle according to claim 2, characterized in that, each said driving unit is provided with at least two parallel said wheels, and said driving unit passes through the difference between the two said wheels. Turn quickly. 4. The new multifunctional vehicle according to claim 3, characterized in that, the bottom end of the drive unit is also provided with universal wheels that play an auxiliary supporting role. 5. The novel multifunctional vehicle according to claim 1, characterized in that the telescopic cylinder is a damping cylinder. 6. The new multifunctional vehicle according to claim 1, characterized in that, the new multifunctional vehicle is provided with three connecting assemblies, and the three connecting assemblies are arranged around the cockpit. 7. The new multi-purpose vehicle according to claim 1, wherein each of the connecting rods is formed into a V shape, and one end of the connecting rod at the V-shaped opening constitutes the near-cabin end, and the connecting rod The ends where the rods intersect in the V form the proximal wheel end. 8. The novel utility vehicle according to claim 1, wherein the cockpit comprises: a cabin body, the plurality of connection components are all connected to the cabin body; a seat, the seat is rotatably arranged in the cabin; An operator, the operator is arranged in the cabin, and the operator is used to control the driving condition of each of the drive units. 9. The new multifunctional vehicle according to claim 1, characterized in that, the cockpit can be an open cabin or a closed cabin.