A new type of four-wheel drive vehicle

Abstract

The present invention relates to the technical field of automotive spare equipment, and discloses a new type of four-wheel drive vehicle, which includes multiple sets of drive wheel assemblies, a frame main body, and a direction control assembly. The multiple sets of drive wheel assemblies are rotatably hinged to the frame main body, and the direction control assembly is connected to each drive wheel assembly for controlling the driving direction of the vehicle. It is characterized in that a spare landing gear assembly is fixedly connected to the frame main body, and the spare landing gear assembly is arranged as a retractable structure. By fixedly connecting the spare landing gear assembly to the frame main body in the present invention, after the wheel frame structure and tires of the off-road vehicle fail, the running wheels in the spare landing gear assembly can be lowered, so as to be used as running wheels again to support the vehicle to continue running. In addition, the spare landing gear assembly is arranged as a retractable structure, and the landing gear can be stored in the frame during normal use, ensuring the passing performance and off-road performance of the vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive spare equipment, and particularly relates to a new type of four-wheel drive vehicle. Background Art

[0002] With the improvement of people's living standards, the requirements for entertainment and leisure are also getting higher and higher. Automobile off-road experience has become an essential part of holiday outings in life. However, most of the existing off-road vehicles on the market can basically only cross relatively complex roads and can only cross relatively small slopes. They cannot easily cross mountain roads with relatively large slopes, and have high requirements for the driving skills of drivers and great driving risks. They cannot achieve true off-road. Moreover, they are more expensive and are mostly used for long-distance travel and are not suitable for entertainment experience. In addition, for some crop parks built in hilly and mountainous areas, an off-road vehicle with better off-road ability and suitable for all-terrain operation is needed for daily inspection and production work.

[0003] There is a type of off-road vehicle with extremely strong off-road ability that can meet the above work requirements. The wheel frame structure connecting the tires can swing in multiple directions by itself, and the entire wheel frame structure is rotationally hinged to the vehicle frame body and can also swing during operation. Thus, during operation, the four swing arms can adapt to different terrains and automatically adjust up, down, left, and right to grip the ground and drive. And keep the driver in a positive angle position. However, because this off-road vehicle runs on rough and complex roads for a long time, its wheel frame structure and tires are prone to failures, such as wheel frame fractures, tire bursts, etc. And the existing off-road vehicles are not designed and installed with a spare wheel frame structure. Thus, if the wheel frame structure and tires of the vehicle fail in the wild, it is difficult for the vehicle to move again, and the driver is easily trapped in the wild and cannot find rescue in time, threatening personal safety. Summary of the Invention

[0004] Aiming at the deficiencies of the existing technology, the purpose of the present invention is to provide a new type of four-wheel drive vehicle, which is equipped with a retractable spare wheel structure that can be used as an operating component to continue driving after the wheel frame structure and tires of the vehicle fail, so that the driver can find rescue in time for self-rescue.

[0005] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0006] A new type of four-wheel drive vehicle, the drive vehicle includes multiple sets of drive wheel assemblies, a vehicle frame body, and a direction control component. The multiple sets of drive wheel assemblies are rotationally hinged to the vehicle frame body, and the direction control component is connected to each drive wheel assembly for controlling the driving direction of the vehicle. It is characterized in that a spare landing gear assembly is fixedly connected to the vehicle frame body, and the spare landing gear assembly is arranged as a retractable structure.

[0007] In the present invention, preferably, the spare landing gear assembly includes a retractable support bracket assembly and two groups of spare wheel assemblies. The retractable support bracket assembly is of a symmetrical structure, and the two groups of spare wheel assemblies are respectively fixed to both side ends of the retractable support bracket assembly.

[0008] In the present invention, preferably, the retractable support bracket assembly includes a reciprocating drive assembly and two groups of storage link assemblies. The two groups of storage link assemblies are respectively fixedly connected to both ends of the reciprocating drive assembly.

[0009] In the present invention, preferably, the storage link assembly includes a connecting seat, a main support rod, a connecting sub-rod, and a piston sleeve. The piston sleeve slidably penetrates through the connecting seat. The main support rod is hinged to the connecting seat, and the connecting sub-rod is hinged between the main support rod and the piston sleeve.

[0010] In the present invention, preferably, the reciprocating drive assembly includes a force-applying body and two groups of piston rods. The two groups of piston rods are symmetrically and slidably arranged on both side ends of the force-applying body.

[0011] In the present invention, preferably, the motion states of the two groups of piston rods are symmetrical.

[0012] In the present invention, preferably, the spare wheel assembly includes a shock-absorbing arm and a tire. The tire is rotatably arranged at one end of the shock-absorbing arm, and the other end of the shock-absorbing arm is fixedly connected to the main support rod.

[0013] In the present invention, preferably, the reciprocating drive assembly is arranged as a double-acting hydraulic cylinder.

[0014] In the present invention, preferably, multiple groups of mounting cross beams are provided at the bottom of the vehicle frame main body, and a controller is further provided on the vehicle frame main body. The controller is electrically connected to the reciprocating drive assembly.

[0015] In the present invention, preferably, multiple groups of mounting lugs are integrally formed at the upper end and the side end of the connecting seat, and a sliding groove is formed on the connecting seat. The piston sleeve is slidably arranged in the sliding groove.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By fixedly connecting the spare landing gear assembly to the vehicle frame main body in the present invention, after a failure occurs in the wheel frame structure and the tires of the off-road vehicle, the running wheels in the spare landing gear assembly can be lowered, so as to be used as running wheels again to support the vehicle to continue running. In addition, the spare landing gear assembly is arranged as a retractable structure. During normal use, the landing gear can be stored in the vehicle frame, which can ensure that the bottom of the vehicle frame is flat without other protruding structures, thereby ensuring that the bottom of the vehicle is not easily stuck with the road surface during driving, and ensuring the passing performance and off-road performance of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic structural diagram of the standby landing gear assembly during retraction in the present invention.

[0018] Figure 2 This is a schematic structural diagram of the standby landing gear assembly during deployment in the present invention.

[0019] Figure 3 This is a partially sectioned schematic diagram of the standby landing gear assembly during deployment in the present invention.

[0020] Figure 4 This is a schematic overall structural diagram of the connecting seat in the present invention.

[0021] Figure 5 This is a schematic overall structural diagram of the shock-absorbing arm in the present invention.

[0022] Figure 6 This is a front elevation view of the overall structure of the standby landing gear assembly installed on a driving vehicle in the present invention.

[0023] Figure 7 This is a schematic structural diagram of the connection structure between the standby landing gear assembly and the vehicle frame main body in the present invention.

[0024] Figure 8 This is an electrical control block diagram in the present invention.

[0025] In the drawings: 1. Standby landing gear assembly; 11. Connecting seat; 111. Mounting ear; 12. Main support rod; 13. Connecting secondary rod; 14. Double-acting hydraulic cylinder; 141. Piston rod; 15. Piston sleeve; 16. Spare wheel assembly; 161. Tire; 162. Upper arm seat; 163. Mounting hole; 164. Shock-absorbing sleeve; 165. Shock-absorbing spring; 166. Shock-absorbing slide rod; 167. Retaining ring; 168. Lower connecting block; 169. Shock-absorbing rod; 17. Chute; 2. Driving wheel assembly; 3. Vehicle frame main body; 31. Mounting cross beam; 4. Direction control assembly. Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that when a component is referred to as "fixed to" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terms used in the description of the present invention herein are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] Please also refer to Figures 1 to 7 , a preferred embodiment of the present invention provides a new type of four-wheel drive vehicle. In this embodiment, the drive vehicle includes multiple sets of drive wheel assemblies 2, a frame main body 3, and a direction control assembly 4. The multiple sets of drive wheel assemblies 2 are rotatably hinged to the frame main body 3, and the direction control assembly 4 is connected to each drive wheel assembly 2 for controlling the driving direction of the vehicle. A spare landing gear assembly 1 is fixedly connected to the frame main body 3 by screws, and the spare landing gear assembly 1 is set as a retractable structure. During normal operation, the spare landing gear assembly 1 is stored inside the frame main body 3, thus not affecting the passing performance of the vehicle during normal operation, and further not affecting the off-road performance of the off-road vehicle. When a failure occurs in the wheel frame structure and tires of the vehicle, the stored spare wheel assembly 16 can be deployed and lowered by a two-way hydraulic cylinder 14, so as to be used as a new running wheel to support the vehicle to continue running. Thereby, the ability of the vehicle to escape and get out of trouble after a failure can be increased, and the safety of the driver during off-road driving can be improved.

[0030] The overall shape of the drive vehicle is similar to that of a spider. The four sets of drive wheels can all be set as wheels with in-wheel motors, so all four sets of wheels can be driven. In addition, the connecting brackets of each set of wheels can swing in two different directions. When connecting the connecting brackets to the frame main body 3, it is also a hinge connection. Thus, a total of three directions of swinging can be achieved, thereby greatly increasing the movement range and flexibility of the wheels and improving its off-road performance.

[0031] The standby landing gear assembly 1 includes a retractable support assembly and two sets of standby wheel assemblies 16. The retractable support assembly is of a symmetrical structure, and the two sets of standby wheel assemblies 16 are respectively fixed on both sides of the retractable support assembly. Thus, it can be ensured that the standby wheel assemblies 16 fixedly connected to both ends of the retractable support assembly can be retracted and extended synchronously, and the degree of retraction and extension is the same. Thus, it can be ensured that the supporting forces on the vehicle body are the same after the two sets of standby wheel assemblies 16 land, and the balance of the vehicle body can be ensured. It can be used for operation in areas with complex road conditions, and at the same time, it can also pass through some small hilly areas well. It can be used for related operations in the planting parks of crops planted in hilly areas.

[0032] The retractable support assembly includes a reciprocating drive assembly and two sets of storage link assemblies. The two sets of storage link assemblies are respectively fixedly connected to both ends of the reciprocating drive assembly. The storage link assembly includes a connection seat 11, a main support rod 12, a connecting sub-rod 13 and a piston sleeve 15. The piston sleeve 15 slidably penetrates through the connection seat 11, and the main support rod 12 is hinged to the connection seat 11. The connecting sub-rod 13 is hinged between the main support rod 12 and the piston sleeve 15. The structure of the storage link assembly is simple, and it can realize the retractable function while reducing the space occupied by the overall structure of the retractable support assembly.

[0033] The reciprocating drive assembly includes a force-applying body and two sets of piston rods 141. The two sets of piston rods 141 are symmetrically and slidably arranged on both ends of the force-applying body. The motion states of the two sets of piston rods 141 are symmetrical. The reciprocating drive assembly is set as a two-way hydraulic cylinder 14. The piston sleeve 15 can be fixed to the ends of the two sets of piston rods 141 by means of threaded connection. A connecting lug is integrally formed on the outer side wall of the piston sleeve 15, and the connecting lug is used for being hinged to the connecting sub-rod 13. A connecting lug for hinging is also integrally formed on the main support rod 12. The piston sleeve 15 slidably penetrates through a chute 17 opened on the connection seat 11. The main support rod 12 is hinged to one end of the connection seat 11. By the reciprocating sliding of the piston sleeve 15 inside the chute 17, the connecting sub-rod 13 is driven to move. Under the pulling of the connecting sub-rod 13, the main support rod 12 will rotate around the hinge point with the connection seat 11, so as to drive the standby wheel assembly 16 fixed on the main support rod 12 to move towards one end close to the connection seat 11, thus realizing the retraction.

[0034] The spare wheel assembly 16 includes a shock-absorbing arm and a tire 161. The tire 161 is rotatably arranged at one end of the shock-absorbing arm, and the other end of the shock-absorbing arm is fixedly connected to the main support rod 12. The shock-absorbing arm is used to connect the tire 161 and the main support rod 12 and plays a role in shock absorption and vibration filtering. Since this off-road vehicle travels on relatively rough roads, good shock-absorbing components are needed to filter out the vibrations on the road to ensure the driving and riding comfort of the occupants. The shock-absorbing arm includes an upper arm seat 162, a lower connecting block 168, and multiple groups of shock-absorbing rods 169. The multiple groups of shock-absorbing rods 169 are hinged between the upper arm seat 162 and the lower connecting block 168. An installation hole 163 is provided at the center position of the upper arm seat 162. A shock-absorbing sleeve 164 can be welded or integrally formed in the installation hole 163. A shock-absorbing slide rod 166 is integrally formed on the lower connecting block 168. The shock-absorbing slide rod 166 slidably penetrates through the shock-absorbing sleeve 164, and a group of shock-absorbing springs 165 are installed between the shock-absorbing slide rod 166 and the upper arm seat 162. The upper end of the shock-absorbing spring 165 is clamped between the installation hole 163 and the shock-absorbing sleeve 164, and the lower end abuts against a retaining ring 167 integrally formed on the shock-absorbing slide rod 166. This shock-absorbing arm realizes the function of shock absorption and vibration filtering through multiple groups of shock-absorbing rods 169 symmetrically connected between the upper arm seat 162 and the lower connecting block 168 and shock-absorbing springs 165 sleeved on the shock-absorbing sleeve 164 and the shock-absorbing slide rod 166. The shock-absorbing rod 169 is a prior art, and its selection method is also a well-known prior art to those skilled in the art and will not be elaborated here.

[0035] Multiple groups of mounting cross beams 31 are welded to the bottom of the frame main body 3, and a controller is also provided on the frame main body 3. The controller is electrically connected to the reciprocating drive assembly. The controller is electrically connected to a hydraulic pump installed on the frame main body 3, and the hydraulic pump is connected to the oil inlet and outlet of the bidirectional hydraulic cylinder 14 through a pipeline. The controller controls the hydraulic pump to press or recover the hydraulic oil to realize the telescopic movement of the piston rod 141 on the bidirectional hydraulic cylinder 14. The mounting cross beams 31 are provided for mounting and fixing the spare landing gear assembly 1. Since in actual situations, both the front and rear wheels may fail, mounting cross beams 31 need to be provided at different positions for mounting the spare landing gear assembly 1 to cope with the failures occurring at different positions.

[0036] Multiple groups of mounting lugs 111 are integrally formed at the upper end and the side end of the connecting seat 11, and a chute 17 is provided on the connecting seat 11. The piston sleeve 15 is slidably arranged in the chute 17. The multiple groups of mounting lugs 111 at different positions can facilitate more optional mounting connection positions for the spare landing gear assembly 1 during installation, which is convenient for installation and use in practice.

[0037] Working principle:

[0038] First, the staff connects the two-way hydraulic cylinder 14 to the hydraulic pump on the vehicle frame body 3, and the controller controls the retraction of the two piston rods 141 of the two-way hydraulic cylinder 14, thereby retracting the spare wheel assembly 16. Then, the two connecting seats 11 are fixedly connected to the mounting cross beam 31 on the vehicle frame body 3 by screws. At this time, the entire spare landing gear assembly 1 is installed inside the vehicle frame body 3 in a retracted state, and it will not affect the passing performance of the vehicle during operation.

[0039] When any set of wheel frame structures or tires fails during operation and cannot continue to operate, first, according to the damaged wheel frame structure and the specific position of the tire on the vehicle body, determine the specific mounting cross beam 31 on which the entire spare landing gear assembly 1 will be installed. When the mounting cross beam 31 is also damaged, it can be installed on the vehicle frame body 3 by screws. After installation, the damaged end can be lifted to a certain height first, and at the same time, the controller controls the extension of the two piston rods 141 of the two-way hydraulic cylinder 14. The piston sleeve 15 slides away from the two-way hydraulic cylinder 14. At this time, the connecting auxiliary rod 13 will transmit the force to the connecting lug of the main support rod 12 under the push of the piston sleeve 15, thereby pushing the main support rod 12 to rotate around the hinged end and unfolding the spare wheel assembly 16 as a new running wheel to support the vehicle to continue running. After the spare wheel assembly 16 is fully unfolded, the two piston rods 141 of the two-way hydraulic cylinder 14 stop moving and the lifted end of the vehicle is lowered to the ground. At this time, the vehicle can run again.

[0040] The above description is a detailed description of the preferred and feasible embodiments of the present invention, but the embodiments are not used to limit the patent application scope of the present invention. Any equivalent changes or modifications completed under the technical spirit prompted by the present invention shall fall within the patent scope covered by the present invention.

Claims

1. A new type of four-wheel drive vehicle, the drive vehicle includes multiple sets of drive wheel assemblies (2), a vehicle frame main body (3) and a direction control assembly (4). The multiple sets of drive wheel assemblies (2) are rotationally hinged to the vehicle frame main body (3), and the direction control assembly (4) is connected to each drive wheel assembly (2) for controlling the driving direction of the vehicle, characterized in that, A spare landing gear assembly (1) is fixedly connected to the frame body (3). The spare landing gear assembly (1) is arranged as a retractable structure. The spare landing gear assembly (1) includes a retractable and deployable support assembly and two groups of spare wheel assemblies (16). The retractable and deployable support assembly is a symmetrical structure. The two groups of spare wheel assemblies (16) are respectively fixed to both side ends of the retractable and deployable support assembly. The retractable and deployable support assembly includes a reciprocating drive assembly and two groups of storage link assemblies. The two groups of storage link assemblies are respectively fixedly connected to both ends of the reciprocating drive assembly. The storage link assembly includes a connection seat (11), a main support rod (12), a connecting sub-rod (13), and a piston sleeve (15). The piston sleeve (15) slidably penetrates through the connection seat (11). The main support rod (12) is hinged to the connection seat (11). The connecting sub-rod (13) is hinged between the main support rod (12) and the piston sleeve (15). The spare wheel assembly (16) includes a shock-absorbing arm and a tire (161). The tire (161) is rotatably arranged at one end of the shock-absorbing arm. The other end of the shock-absorbing arm is fixedly connected to the main support rod (12). The reciprocating drive assembly is arranged as a two-way hydraulic cylinder (14). A plurality of mounting cross beams (31) are provided at the bottom of the frame body (3). A controller is also provided on the frame body (3). The controller is electrically connected to the reciprocating drive assembly.

2. A new four-wheel drive vehicle according to claim 1, characterized in that, The reciprocating drive assembly includes a force-applying body and two groups of piston rods (141). The two groups of piston rods (141) are symmetrically slidably arranged at both side ends of the force-applying body.

3. A novel four-wheel drive vehicle according to claim 2, characterized in that, The motion states of the two groups of piston rods (141) are symmetrical.

4. A novel four-wheel drive vehicle according to claim 1, characterized in that, A plurality of mounting lugs (111) are integrally formed at the upper end and the side end of the connection seat (11). A chute (17) is formed on the connection seat (11). The piston sleeve (15) is slidably arranged in the chute (17).

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