Spare tire assembly and vehicle

Abstract

The spare tire assembly comprises a spare tire, a connecting piece and a driving device, the connecting piece is connected between the driving device and the spare tire, the driving device comprises a shell and a driving piece, the shell is used for being fixedly connected with a vehicle body, the driving piece is located in the shell, and the shell is fixedly connected with the spare tire. The driving piece is used for driving the connecting piece to drive the spare tire to move relative to the shell in the first direction, and the first direction is the direction, facing the ground, of the spare tire. According to the scheme, the spare tire has the electric control displacement function, and when the wheel breaks down, the spare tire can replace the broken-down wheel to achieve the supporting effect on the vehicle without being manually replaced by a vehicle owner.

Description

Technical Field

[0001] The present application relates to the field of vehicles, and in particular to a spare tire assembly and a vehicle. Background Art

[0002] The spare tire is a common component in a vehicle. When the tire of a normally running vehicle is damaged, the owner needs to stop driving and manually replace the spare tire. The spare tire depends on the vehicle's own driving device. That is, when the vehicle's own driving device and the tire are damaged at the same time, only replacing the spare tire cannot enable the vehicle to continue driving. This is because the spare tire in the prior art does not have an independent power device and cannot provide an additional power source for the vehicle. Utility Model Content

[0003] The embodiments of the present application propose a spare tire assembly and a vehicle. By enabling the spare tire to have an electronically controlled displacement function, when a wheel fails, the spare tire can replace the failed wheel to support the vehicle without the need for manual replacement by the vehicle owner. At the same time, by arranging a motor in the spare tire, the spare tire can provide an additional power source for vehicle driving.

[0004] In the first aspect, the present application proposes a spare tire assembly, including a spare tire, a connecting member and a driving device, wherein the connecting member is connected between the driving device and the spare tire, the driving device includes a shell and a driving member, the shell is used to be fixedly connected to a vehicle body, the driving member is located in the shell, and the driving member is used to drive the connecting member to drive the spare tire to move relative to the shell along a first direction, wherein the first direction is the direction of the spare tire toward the ground.

[0005] By arranging a spare tire, a connecting member and a driving device in the spare tire assembly, wherein the connecting member is connected between the driving device and the spare tire, the driving device includes a shell and a driving member, the shell is used to be fixedly connected to the vehicle body, the driving member is located in the shell, and the driving member is used to drive the connecting member to drive the spare tire to move relative to the shell in a first direction, the first direction being the direction of the spare tire toward the ground, so that the spare tire has an electronically controlled displacement function, that is, when a wheel fails, the owner does not need to manually replace the spare tire, and the spare tire can be automatically moved to a position that supports the vehicle together with the wheel under the drive of the driving member, ultimately achieving the effect of replacing the failed wheel.

[0006] In one embodiment of the first aspect, the driving member includes a first motor, a driving shaft of the first motor is connected to the connecting member, and the axial direction of the driving shaft of the first motor is perpendicular to or inclined to the first direction. By arranging the first motor in the driving member, wherein the driving shaft of the first motor is connected to the connecting member, and the axial direction of the driving shaft of the first motor is perpendicular to or inclined to the first direction, the driving shaft of the first motor can drive the connecting member to flip around the driving shaft of the first motor, and the connecting member further drives the spare tire to flip around the driving shaft of the first motor, and finally the spare tire moves along the first direction, i.e., toward the ground.

[0007] In one embodiment of the first aspect, the connecting member includes a first connecting rod, the first connecting rod is fixedly connected to the spare tire, and the extending direction of the first connecting rod is the first direction. By arranging the first connecting rod in the connecting member, wherein the first connecting rod is fixedly connected to the spare tire, and the extending direction of the first connecting rod is the first direction, the first motor drive shaft can drive the first connecting rod to swing with the first motor drive shaft as the axis, and the first connecting rod further drives the spare tire to flip with the first motor drive shaft as the axis, and finally the spare tire moves along the first direction, that is, toward the ground.

[0008] In one embodiment of the first aspect, the connecting member further comprises a second motor and a connecting block, the driving shaft of the first motor is fixedly connected to the connecting block, the connecting block is fixedly connected to the body of the second motor, and the driving shaft of the second motor is fixedly connected to the end face of the first connecting rod. By arranging the second motor and the connecting block in the connecting member, wherein the driving shaft of the first motor is fixedly connected to the connecting block, the connecting block is fixedly connected to the body of the second motor, and the driving shaft of the second motor is fixedly connected to the end face of the first connecting rod, the second motor drives the first connecting rod to rotate, and the first connecting rod then drives the spare tire to rotate with the first connecting rod as the axis, and the second motor adjusts the axial direction of the spare tire, so that the spare tire can change the movement direction of the vehicle.

[0009] In an implementation manner of the first aspect, the number of the first motors is at least two, and the two opposite sides of the connection block are respectively connected to the at least two first motors. By making the number of the first motors at least two, wherein the two opposite sides of the connection block are respectively connected to the at least two first motors, it is beneficial for the spare tire to move from the inactive position to a position supporting the vehicle together with the wheel under the drive of the connection member and the first motor.

[0010] In one embodiment of the first aspect, the connecting member further comprises a second connecting rod, the connecting block has an opening, the second connecting rod passes through the opening, the second connecting rod is fixedly connected to the connecting block, and both ends of the second connecting rod are connected to the drive shafts of the at least two first motors. By arranging a second connecting rod in the connecting member, wherein the connecting block has an opening, the second connecting rod passes through the opening, the second connecting rod is fixedly connected to the connecting block, and both ends of the second connecting rod are connected to the drive shafts of the at least two first motors, the driving force of the at least two first motors acts on the connecting block simultaneously through the second connecting rod, and the connecting block drives the second motor, the first connecting rod and the spare tire to flip around the drive shaft of the first motor, and finally the spare tire is stably and smoothly moved from the unactivated position to the position capable of supporting the vehicle under the drive of the driving member.

[0011] In one embodiment of the first aspect, the driving member includes a third motor, a screw, a nut, a ball and a circulating member, the outer wall of the nut is fixedly connected to the connecting member, the axial direction of the driving shaft of the third motor is a first direction, the driving shaft of the third motor is fixedly connected to the end face of the screw, the screw passes through the nut, the ball is located in the spiral groove of the screw, the ball is located between the spiral groove and the inner wall of the nut, the circulating member has an inlet and an outlet, the inlet and the outlet are both connected to the spiral groove, and the circulating member is used to make the ball roll cyclically between the nut and the screw. A third motor, a screw, a nut, a ball and a circulation member are arranged in the driving member, wherein the outer wall of the nut is fixedly connected to the connecting member, the axial direction of the driving shaft of the third motor is the first direction, the driving shaft of the third motor is fixedly connected to the end face of the screw, the screw passes through the nut, the ball is located in the spiral groove of the screw, the ball is located between the spiral groove and the inner wall of the nut, the circulation member has an inlet and an outlet, both of which are connected to the spiral groove, and the circulation member is used to make the ball roll cyclically between the nut and the screw, so that the third motor drives the screw to rotate, and the rotational motion of the screw relative to the nut is converted into linear motion of the nut relative to the screw through the ball, and the nut can then drive the connecting member and the spare tire to move along the first direction, and finally the spare tire is moved to a position capable of supporting the vehicle.

[0012] In one embodiment of the first aspect, the spare tire assembly further includes a fourth motor, the drive shaft of the fourth motor is rotatably connected to the wheel hub of the spare tire, a transmission is provided in the fourth motor, the transmission is connected to both the wheel hub and the drive shaft of the fourth motor, and the transmission is used to reduce the rotation speed of the wheel hub and increase the torque of the wheel hub. By providing a fourth motor in the spare tire assembly, wherein the drive shaft of the fourth motor is rotatably connected to the wheel hub of the spare tire, a transmission is provided in the fourth motor, the transmission is connected to both the wheel hub and the drive shaft of the fourth motor, and the transmission is used to reduce the rotation speed of the wheel hub and increase the torque of the wheel hub, the spare tire rotates under the drive of the fourth motor, and the spare tire assembly can provide additional power for the vehicle.

[0013] In an implementation manner of the first aspect, the number of the spare tires is at least two, and the number of the transmissions is equal to the number of the spare tires. By making the number of spare tires at least two, wherein the number of the transmissions is equal to the number of spare tires, at least two spare tires support the vehicle, thereby enhancing the stability of the vehicle during driving, while more evenly transmitting the force, balancing the influence of stress and impact force on the fatigue strength of the structure, and improving the service life of the spare tire assembly.

[0014] In a second aspect, the present application proposes a vehicle comprising a vehicle body, a fixed base and the spare tire assembly described in the first aspect, wherein the spare tire assembly, the fixed base and the vehicle body are connected in sequence, and the first direction is perpendicular to the axial direction of the vehicle's wheels.

[0015] By arranging a vehicle body and the spare tire assembly described in the first aspect in a vehicle, wherein the spare tire assembly, the fixed base and the vehicle body are connected in sequence, and the first direction is perpendicular to the axial direction of the vehicle's wheels, the spare tire can replace the faulty wheel to support the vehicle without the need for manual replacement by the owner, and the spare tire can provide an additional power source for the vehicle's driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a spare tire assembly according to an embodiment of the present application;

[0017] Figure 2 is a structural schematic diagram of a spare tire assembly according to another embodiment of the present application;

[0018] Figure 3 is a schematic diagram of the coordination structure of the spare tire, the fourth motor and the transmission in an embodiment of the present application;

[0019] Figure 4 is a schematic diagram of the matching structure of the spare tire and the transmission in an embodiment of the present application;

[0020] Figure 5 is a schematic diagram of a spare tire assembly in a vehicle in an embodiment of the present application when the spare tire assembly is not working;

[0021] Figure 6 is a schematic diagram of a spare tire assembly in a vehicle according to an embodiment of the present application when in operation;

[0022] Figure 7 This is another schematic diagram of the spare tire assembly in the vehicle according to the embodiment of the present application when it is working.

[0023] Reference numerals

[0024] 1-spare tire assembly; 2-driving device; 21-driving member; 211-first motor; 2111-first motor body; 2112-first motor driving shaft; 22-housing; 212-third motor; 213-screw; 2131-spiral groove; 214-nut; 215-ball; 216-circulating member; 2161-inlet; 2162-outlet;

[0025] 3-connecting member; 31-first connecting rod; 32-second motor; 33-connecting block; 331-opening; 34-second connecting rod; 35-fifth motor; 351-fifth motor body; 352-fifth motor drive shaft;

[0026] 4-spare tire; 41-tire; 42-wheel hub; 6-fixed base; 7-fourth motor; 71-rotor; 72-stator; 73-fourth motor drive shaft; 8-transmission; 81-transmission first end; 82-transmission second end;

[0027] 10- vehicle; 11- vehicle body; 12- wheels. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings. The directional terms mentioned in the embodiments of the present application, such as "upper", "lower", "front", "back", "left", "right", "inner", "outer", "side", "top", "bottom", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0029] The spare tire in the prior art usually needs to be replaced manually by the owner. When the tire used for normal driving is damaged, the owner needs to remove the damaged tire and install the spare tire. In addition, the spare tire itself has no power device and cannot provide additional power for the vehicle, so it cannot achieve more functions, such as driving the vehicle to travel underwater and steering.

[0030] The present application proposes a spare tire assembly, which enables the spare tire to have an electronically controlled displacement function. When a wheel fails, the spare tire can replace the failed wheel to support the vehicle without the need for manual replacement by the owner. At the same time, a motor is arranged in the spare tire, so that the spare tire can provide an additional power source for vehicle driving.

[0031] Figure 1 is a schematic diagram of the structure of a spare tire assembly 1 according to an embodiment of the present application. The spare tire assembly 1 can be used to support a vehicle together with a wheel. Figure 1 The spare tire assembly 1 may include a driving device 2, a connecting member 3 and a spare tire 4. The connecting member 3 may be connected between the driving device 2 and the spare tire 4, that is, the driving device 2, the connecting member 3 and the spare tire 4 may be connected in sequence. The driving device 2 may include a driving member 21 and a shell 22. The shell 22 may be used to be fixedly connected to the body of the vehicle. The driving member 21 may be located in the shell 22. The driving member 21 may be used to drive the connecting member 3 to drive the spare tire 4 to move relative to the shell 22 along a first direction. The first direction may be the direction in which the spare tire 4 faces the ground, so that the spare tire 4 may have an electrically controlled displacement function. When the vehicle is operating normally, that is, the spare tire 4 does not need to be used, the spare tire 4 may be located at a position on the vehicle body that does not affect the driving of the vehicle, for example, to meet the departure angle requirement of the vehicle on a sloped road surface. When the tire of the vehicle fails, the spare tire 4 can be driven by the driving member 21 and the connecting member 3 to flip from the position to a position that supports the vehicle together with the wheel.

[0032] In one possible implementation, see Figure 1 The driving member 21 may include a first motor 211, a first motor drive shaft 2112 of the first motor 211 may be connected to the connecting member 3, an axis direction of the first motor drive shaft 2112 may be perpendicular to or inclined to the first direction, and the first motor body 2111 may be located in the housing 22. Since the axis of the first motor drive shaft 2112 may be perpendicular to or inclined to the first direction, the connecting member 3 may rotate under the drive of the first motor drive shaft 2112, that is, the connecting member 3 may flip the connection between the connecting member 3 and the first motor drive shaft 2112 as a base point, and the spare tire 4 connected to the connecting member 3 may flip with the first motor drive shaft 2112 as an axis, so that the spare tire 4 may be moved from a position that does not affect the normal driving of the vehicle to a position that can support the vehicle together with the wheel.

[0033] In one possible implementation, see Figure 1The connecting member 3 may include a first connecting rod 31, which may be fixedly connected to the spare tire 4, and the extending direction of the first connecting rod 31 may be the first direction. The connecting member 3 may rotate under the drive of the first motor drive shaft 2112, that is, the first connecting rod 31 may swing the connection between the connecting member 3 and the first motor drive shaft 2112 as a base point, and the spare tire 4 connected to the connecting member 3 may flip around the first motor drive shaft 2112, and then the spare tire 4 may move along the first direction to a position where it can support the vehicle together with the wheel.

[0034] In one possible implementation, see Figure 1 , the connecting member 3 may also include a second motor 32 and a connecting block 33, the first motor drive shaft 2112 may be fixedly connected to the connecting block 33, the connecting block 33 may be fixedly connected to the body of the second motor 32, that is, the first motor drive shaft 2112, the connecting block 33 and the body of the second motor 32 may be connected in sequence, the drive shaft of the second motor 32 may be fixedly connected to the end face of the first connecting rod 31, schematically, the axis of the drive shaft of the second motor 32 may coincide with the axis of the first connecting rod 31. The connecting block 33 may rotate under the drive of the first motor drive shaft 2112, and the body and drive shaft of the second motor 32 may rotate accordingly, so that the first connecting rod 31 may drive the spare tire 4 to flip around the first motor drive shaft 2112 as the axis, and the spare tire 4 may move along the first direction to a position where it can support the vehicle together with the wheel. In addition, since the driving shaft of the second motor 32 can be fixedly connected to the end face of the first connecting rod 31, the second motor 32 can drive the first connecting rod 31 to rotate, and the first connecting rod 31 can then drive the spare tire 4 to rotate around the axial direction of the first connecting rod 31. The second motor 32 can adjust the axial direction of the spare tire 4, and ultimately the spare tire 4 can change the movement direction of the vehicle.

[0035] In one possible implementation, see Figure 1 The number of the first motors 211 may be at least two, and the opposite sides of the connection block 33 may be respectively connected to the at least two first motors 211. By making the number of the first motors 211 at least two, wherein the opposite sides of the connection block 33 are respectively connected to the at least two first motors 211, it is possible to facilitate the spare tire 4 to move from the inactive position to the position of supporting the vehicle together with the wheel under the drive of the connection member 3 and the first motor 211.

[0036] In one possible implementation, see Figure 1The connecting member 3 may further include a second connecting rod 34 , the connecting block 33 may have an opening 331 , the second connecting rod 34 may pass through the opening 331 , the second connecting rod 34 may be fixedly connected to the connecting block 33 , and both ends of the second connecting rod 34 may be connected to at least two first motor drive shafts 2112 . By setting a second connecting rod 34 in the connecting member 3, wherein the second connecting rod 34 can pass through the opening 331 of the connecting block 33, and the second connecting rod 34 can be fixedly connected to the connecting block 33, since the two ends of the second connecting rod 34 can be connected to at least two first motor drive shafts 2112, the driving force of at least two first motors 211 can act on the connecting block 33 at the same time through the second connecting rod 34, and the connecting block 33 can drive the second motor 32, the first connecting rod 31 and the spare tire 4 to flip around the first motor drive shaft 2112. At least two symmetrically distributed first motors 211 can apply a greater driving force to the connecting block 33, the second motor 32, the first connecting rod 31 and the spare tire 4. At the same time, the distribution of the driving force can be more uniform, which can be beneficial to the smooth swinging of the first connecting rod 31 and the smooth flipping of the spare tire 4, and finally the spare tire 4 can be stably and smoothly moved from the unactivated position to the position capable of supporting the vehicle under the drive of the driving member 21.

[0037] In a possible implementation manner, the driving member 21 may also move the spare tire 4 to a position where it supports the vehicle together with the wheel in another manner. Figure 2 is a schematic structural diagram of a spare tire assembly 1 according to another embodiment of the present invention, see Figure 2 The driving member 21 may include a third motor 212, a screw 213, a nut 214, a ball 215 and a circulation member 216. The outer wall of the nut 214 may be fixedly connected to the connecting member 3. The axial direction of the driving shaft of the third motor 212 may be the first direction. The driving shaft of the third motor 212 may be fixedly connected to the end face of the screw 213. The screw 213 may pass through the nut 214. The ball 215 may be located in the spiral groove 2131 of the screw 213. The ball 215 may be located between the spiral groove 2131 and the inner wall of the nut 214. The circulation member 216 may have an inlet 2161 and an outlet 2162. Both the inlet 2161 and the outlet 2162 may be connected to the spiral groove 2131. The circulation member 216 may be used to make the ball 215 roll cyclically between the nut 214 and the screw 213.

[0038] Through the above arrangement, the third motor 212 can drive the screw 213 to rotate, and the rotational motion of the screw 213 relative to the nut 214 can be converted into linear motion of the nut 214 relative to the screw 213 through the ball 215. Schematically, the third motor 212, the screw 213, the nut 214, the ball 215 and the circulating part 216 can be part of the ball screw, and the nut 214 that makes linear motion relative to the screw 213 can drive the connecting part 3 and the spare tire 4 to move on the screw 213, that is, the spare tire 4 can move along the first direction, and finally the spare tire is moved to a position capable of supporting the vehicle.

[0039] In one possible implementation, see Figure 2 The connecting member may further include a fifth motor 35, a fifth motor body 351 may be fixedly connected to the first connecting rod 31, and a fifth motor drive shaft 352 may be fixedly connected to the spare tire 4. The fifth motor drive shaft 352 may drive the spare tire 4 to rotate about the axis direction of the first connecting rod 31, so the fifth motor 35 may adjust the axis direction of the spare tire 4, and finally enable the spare tire 4 to change the movement direction of the vehicle.

[0040] When necessary, for example, when the vehicle falls into water or the main wheels of the vehicle are unable to provide driving force for the vehicle, the spare tire assembly 1 of the present application can also provide an additional power source for the vehicle to travel.

[0041] In one possible implementation, Figure 3 Schematic diagram of the coordination structure of the spare tire 4, the fourth motor 7 and the transmission 8 in the embodiment of the present application. Figure 4 Schematic diagram of the matching structure of the spare tire 4 and the transmission 8 in the embodiment of the present application. Figure 3 and Figure 4 As shown, in a possible embodiment, the spare tire assembly 1 may further include a fourth motor 7, a fourth motor drive shaft 73 of the fourth motor 7 may be connected to the wheel hub 42, a transmission 8 may be provided in the fourth motor 7, the transmission 8 may be connected to both the wheel hub 42 and the fourth motor drive shaft 73, the transmission 8 may be used to reduce the rotation speed of the wheel hub 42 and increase the torque of the wheel hub 42, so that the tire 41 may rotate under the drive of the fourth motor, and the spare tire assembly 1 may provide additional power for the vehicle.

[0042] Schematically, the fourth motor 7 may further include a rotor 71 and a stator 72, and the transmission 8 may include a transmission first end 81 and a transmission second end 82. The stator 72 may provide a magnetic field for the rotor 71, and the rotor 71 may rotate under the action of the magnetic field. Schematically, the stator 72 may be an outer stator, and the rotor 71 may be an inner rotor. The transmission first end 81 may be used to receive the rotational force of the fourth motor drive shaft 73, and the transmission second end 82 may be used to output the rotational force of the fourth motor drive shaft 73 to the wheel hub 42 of the spare tire 4.

[0043] In one possible implementation, combining Figure 1 and Figure 3 As shown, the number of spare tires 4 can be at least two, and the number of transmissions 8 can be equal to the number of spare tires 4. By setting the number of spare tires 4 to be at least two, wherein the number of transmissions 8 can be equal to the number of spare tires 4, at least two spare tires 4 can support the vehicle, thereby enhancing the stability of the vehicle when driving, while more evenly transmitting the force, balancing the influence of stress and impact force on the fatigue strength of the structure, and ultimately increasing the service life of the spare tire assembly 1.

[0044] The above describes the detailed structure of the spare tire assembly 1 proposed in the present application, and the matching structure between the spare tire assembly 1 and the vehicle 10 is introduced next.

[0045] Figure 5 1 is a schematic diagram of the spare tire assembly 1 of the vehicle 10 of the embodiment of the present application when it is not working. Figure 5 The vehicle 10 may include a vehicle body 11, a fixed base 6, and a spare tire assembly 1. The spare tire assembly 1, the fixed base 6, and the vehicle body 11 may be connected in sequence. Specifically, the housing 22 of the driving device 2 of the spare tire assembly 1 may be fixedly connected to the fixed base 6. Since the fixed base 6 may be disposed on the vehicle body 11, the spare tire assembly 1 may be fixed to the vehicle body 11 through the fixed base 6. The first direction may be perpendicular to the axial direction of the wheel 12 of the vehicle 10. Therefore, when the driving member 21 drives the connecting member 3 to drive the spare tire 4 to move relative to the housing 22 along the first direction, the spare tire 4 may be accurately moved to a position where it and the wheel 12 support the vehicle 10 together.

[0046] Schematically, the fixed base 6 can be fixed on the structure of the rear body of the vehicle, the first motor 211 can be used as a flip motor, and the second motor 32 can be used as a steering motor, which can enable the spare tire 4 to rotate with two degrees of freedom. One degree of freedom is used to drive the spare tire 4 to flip from being pressed upward against the rear door of the vehicle body 11 to the spare tire 4 touching the ground, and the other degree of freedom can be used to change the axial direction of the spare tire 4 after touching the ground.

[0047] Schematically, during normal driving of the vehicle 10, the spare tire assembly 1 can be in a position close to the rear door of the vehicle body 11, meeting the departure angle requirement of the entire vehicle. In some special cases, the drive member 21 can drive the spare tire 4 to flip over and make the spare tire 4 contact with the ground, thereby realizing the load-bearing, driving and other functions under some specific working conditions.

[0048] The working mode of the spare wheel assembly 1 can be as follows:

[0049] See also Figure 5 When the vehicle 10 is running normally, that is, the driving system has no faults, the four tires function normally and the road conditions are good, the spare tire assembly 1 does not need to operate. The spare tire 4 can be rotated to be parallel to the tailgate by the turning motor, that is, the first motor 211, driving the connecting member 3 and the spare tire 4. The radial direction of the spare tire 4 can be adjusted to be parallel to the tailgate by the steering motor, that is, the second motor 32, to avoid interfering with the normal operation of the vehicle.

[0050] Figure 6 1 is a schematic diagram of the spare tire assembly 1 in the vehicle 10 of the embodiment of the present application when it is working. Figure 6 , schematically, when the rear drive wheel of the vehicle 10 fails, the spare tire assembly 1 can play an emergency driving role. The first motor 211 can drive the connector 3 and the spare tire 4 to the ground contact state. When the spare tire assembly 1 is used for driving, the radial direction of the spare tire 4 can be adjusted to be parallel to the driving direction by the second motor 32, and the steering function can still be achieved by controlling the front wheels by the steering wheel to ensure the maneuverability of the vehicle 10 when driving at high speed. When the front wheel steering system fails, the spare tire 4 can also be steered by driving the second motor 32.

[0051] When the vehicle 10 is parked sideways or has little space for turning around, the driver has limited maneuvering space, and the spare tire assembly 1 can be opened for operation. Figure 7 As shown, Figure 7 This is another schematic diagram of the spare tire assembly 1 in the vehicle 10 of the embodiment of the present application when it is working. When the spare tire 4 is lowered to the touch-down state, the radial reverse direction of the spare tire 4 can be adjusted to be perpendicular to the forward direction of the vehicle body 11 by driving the second motor 32, and the front wheels can stop driving. The spare tire 4 can drive the vehicle 10 to move in a circle around the front wheels, thereby achieving the effect of lateral parking and turning around in place in the extreme space.

[0052] When the vehicle 10 is in an outdoor off-road condition or is stuck in a pit unexpectedly, the conventional driving power of the vehicle 10 is insufficient to drive the four wheels to enable the vehicle 10 to escape from the trouble, and in some conditions with large torque requirements, the spare tire assembly 1 can be started to supplement power. The specific state can be as follows: Figure 6At the same time, the vehicle 10 in this state can also help cross the trench by increasing the driving position, avoiding the risk of being trapped in the trench due to the wheels being lifted off.

[0053] When the spare tire assembly 1 is loaded on a vehicle 10 with a floating function, it can provide power for underwater propulsion. Figure 7 As shown, when the spare tire 4 is lowered below the water surface, the radial direction of the spare tire 4 can be adjusted to be perpendicular to the forward direction of the vehicle body by driving the second motor 32, and the fourth motor 7 can be turned on to provide floating propulsion force to the vehicle 10 by disturbing the water flow. In addition, the reverse direction of the underwater driving force can be adjusted by driving the second motor 32 to deflect, thereby adjusting the underwater propulsion direction.

[0054] In summary, the traditional spare tire often achieves its function by replacing a flat tire, which requires the damaged tire to be disassembled and the spare tire to be installed. In addition, when the vehicle drive fails, the vehicle power may be greatly weakened or even unable to drive. The spare tire assembly 1 proposed in this application can have an electronically controlled displacement function. When a wheel fails, the spare tire can replace the faulty wheel 12 to support the vehicle 10 without the need for the owner to manually replace it. In addition, by arranging the fourth motor 7 in the spare tire 4, the spare tire 4 can provide an additional power source for the vehicle 10 to travel. When the vehicle 10 has a flat tire or the conventional wheel drive power source fails, the fourth motor 7 can be started to compensate for the loss of the power source, effectively coping with the power source failure condition; when the vehicle is fault-free and needs to face extreme output conditions, the spare tire assembly 1 can also be started to enhance the power of the vehicle 10 to enhance performance. Moreover, when the vehicle 10 floats on water, the spare tire assembly 1 can be started to enhance the underwater driving force.

[0055] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A spare tire assembly, characterized in that: include, Spare tire; Connectors; A driving device, wherein the connecting member is connected between the driving device and the spare tire, the driving device comprises a shell and a driving member, the shell is used to be fixedly connected to the vehicle body, the driving member is located in the shell, and the driving member is used to drive the connecting member to drive the spare tire to move relative to the shell along a first direction, wherein the first direction is the direction of the spare tire toward the ground.

2. The spare tire assembly according to claim 1, characterized in that: The driving member includes a first motor, a driving shaft of the first motor is connected to the connecting member, and an axial direction of the driving shaft of the first motor is perpendicular to or inclined to the first direction.

3. The spare tire assembly according to claim 2, characterized in that: The connecting member includes a first connecting rod, the first connecting rod is fixedly connected to the spare tire, and the extending direction of the first connecting rod is the first direction.

4. The spare tire assembly according to claim 3, characterized in that: The connecting member also includes a second motor and a connecting block, the driving shaft of the first motor is fixedly connected to the connecting block, the connecting block is fixedly connected to the body of the second motor, and the driving shaft of the second motor is fixedly connected to the end surface of the first connecting rod.

5. The spare tire assembly according to claim 4, characterized in that: The number of the first motors is at least two, and the opposite sides of the connection block are respectively connected to the at least two first motors.

6. The spare tire assembly according to claim 5, characterized in that: The connecting member also includes a second connecting rod, the connecting block has an opening, the second connecting rod passes through the opening, the second connecting rod is fixedly connected to the connecting block, and both ends of the second connecting rod are connected to the driving shafts of the at least two first motors.

7. The spare tire assembly according to claim 1, characterized in that: The driving member includes a third motor, a screw, a nut, a ball and a circulation member. The outer wall of the nut is fixedly connected to the connecting member. The axial direction of the driving shaft of the third motor is a first direction. The driving shaft of the third motor is fixedly connected to the end face of the screw. The screw passes through the nut. The ball is located in the spiral groove of the screw. The ball is located between the spiral groove and the inner wall of the nut. The circulation member has an inlet and an outlet. Both the inlet and the outlet are connected to the spiral groove. The circulation member is used to make the ball roll cyclically between the nut and the screw.

8. The spare tire assembly according to any one of claims 1 to 7, characterized in that: The spare tire assembly also includes a fourth motor, a drive shaft of the fourth motor is rotatably connected to the wheel hub of the spare tire, a transmission is disposed in the fourth motor, and the transmission is connected to both the wheel hub and the drive shaft of the fourth motor.

9. The spare tire assembly according to claim 8, characterized in that: The number of the spare tires is at least two, and the number of the transmissions is equal to the number of the spare tires.

10. A vehicle, characterized in that: It comprises a vehicle body, a fixed base and the spare tire assembly according to any one of claims 1 to 9, wherein the fixed base and the vehicle body are connected in sequence, and the first direction is perpendicular to the axial direction of the wheel of the vehicle.

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