Spoke structure, wheel, running and steering system and amphibious vehicle

Abstract

The invention relates to a spoke structure, a wheel, a running and steering system and an amphibious vehicle, the spoke structure is applied to the wheel, the spoke structure comprises a spoke body, a blade and a driving part, the blade is rotatably connected to the spoke body and has an initial position and an unfolding position relative to the spoke body, and the driving part is arranged on the spoke body. At the unfolding position, in response to rotation of the spoke body along with the wheel, the blades provide propelling force for the wheel to move in the axial direction of the wheel, and the driving part is arranged on at least one of the spoke body and the blades and used for driving the blades to be switched to the unfolding position from the initial position. According to the technical scheme, the blades can push water flow in the rotating process to generate counter-acting force, so that the amphibious vehicle is driven to laterally run in water, no propeller or driving structure needs to be additionally arranged, the structure is simple, the additional weight is small, and the cost is low.

Description

Technical Field

[0001] The present disclosure relates to the technical field of vehicles, and in particular to a spoke structure, a wheel, a driving and steering system, and an amphibious vehicle. Background Art

[0002] An amphibious vehicle combines the dual performance of a car and a boat. It is a special vehicle that can travel on land like a car and float on water like a boat. It has special significance in transportation and can also achieve emergency self-rescue after the vehicle falls into water.

[0003] In the related art, existing amphibious vehicles generally use the vehicle as a hull, and add a propeller and a corresponding drive structure to the vehicle so that the vehicle can travel in water. However, if a single propeller is used for propulsion, a drive structure is required to drive the propeller to rotate and change the propulsion direction of the propeller. If multiple propellers are used for propulsion, more drive structures are also required to drive the multiple propellers. Therefore, this type of amphibious vehicle has a series of problems such as complex structure of the water driving function part, large additional weight of the whole vehicle and high cost. Summary of the invention

[0004] The purpose of the present invention is to provide a spoke structure, a wheel, a driving and steering system and an amphibious vehicle, wherein the active part has a simple structure when driving in water, has a small additional weight and a low cost, so as to at least partially solve the above technical problems.

[0005] In order to achieve the above object, according to a first aspect of the present disclosure, a spoke structure is provided, which is applied to a wheel, and the spoke structure includes:

[0006] Spoke body;

[0007] a blade rotatably connected to the spoke body and having an initial position relative to the spoke body and a deployed position, wherein in the deployed position, in response to the spoke body rotating with the wheel, the blade provides a propulsive force for the wheel to move in an axial direction of the wheel; and

[0008] A driving member is disposed on at least one of the spoke body and the blades, and is used to drive the blades to switch from the initial position to the expanded position.

[0009] Optionally, the driving member includes a water-absorbing and expanding member, and the spoke body is provided with a mounting groove for accommodating the water-absorbing and expanding member and a first water inlet channel communicating with the mounting groove.

[0010] Optionally, in the initial position, the blade fits against the spoke body and covers the mounting groove.

[0011] Optionally, a waterproof structure is provided between the blade and the water-absorbing expansion member.

[0012] Optionally, the waterproof structure includes a sealing plug, and in the initial position, the sealing plug is inserted into the mounting groove and is located between the water-absorbing expansion member and the blade.

[0013] Optionally, the spoke structure further includes a first limiting structure, which is used to unlockably lock the blades in the initial position, and the driving member is used to unlock the first limiting structure so that the blades can switch from the initial position to the expanded position.

[0014] Optionally, the first limiting structure includes an elastic fixing card and a fixing groove, the elastic fixing card is arranged on one of the spoke body and the blade, and the fixing groove is formed on the other one.

[0015] Optionally, the blade is rotatably connected to the spoke body via a hinge structure, and the hinge structure and the first limiting structure are located on opposite sides of the spoke body and / or the blade along the circumference of the wheel.

[0016] Optionally, the spoke structure further comprises a second limiting structure, and in the deployed position, the second limiting structure and the water-swellable member act together on the blade to keep the blade in the deployed position.

[0017] Optionally, the second limiting structure comprises a limiting block provided on the spoke body, and in the expanded position, the blade is stopped between the limiting block and the water-absorbing expansion member.

[0018] Optionally, a channel for water to flow through is formed on the spoke body, and the channel extends perpendicularly or obliquely to the axial direction of the wheel.

[0019] Optionally, in the initial position, the blade is attached to the spoke body and covers the channel.

[0020] According to a second aspect of the present disclosure, there is provided a wheel, comprising a rim, a hub, and the spoke structure as described above, wherein the spoke body is connected between the rim and the hub.

[0021] Optionally, a second water inlet channel is provided on the wheel hub, and the second water inlet channel is connected to a mounting groove on the spoke body for accommodating the driving member including a water-absorbing expansion member, and the inlet of the second water inlet channel is provided on at least one of the inner circumferential wall, outer circumferential wall, axial inner wall and axial outer wall of the wheel hub.

[0022] According to a third aspect of the present disclosure, there is provided a travel and steering system, which is applied to an amphibious vehicle, wherein the travel and steering system comprises a plurality of drive systems arranged at intervals along the front-rear direction of the amphibious vehicle, wherein the drive system comprises a first wheel and a second wheel arranged at intervals along the width direction of the amphibious vehicle, wherein the first wheel and the second wheel are wheels as described above, wherein the blades of the first wheel are located on a side away from the second wheel, and the blades of the second wheel are located on a side facing the first wheel,

[0023] Each set of the driving systems adopts a power device, and the power device is used to drive the wheels to rotate, or,

[0024] Multiple groups of the drive systems share a set of power devices, which are used to control the wheels of each group of the drive systems to rotate independently.

[0025] Optionally, the number of the driving systems is two groups, and the driving and steering systems include a straight-line driving state in water, a driving and steering state in water, and a rotating state in place in water.

[0026] In the straight-line driving state in water, the rotation speed and rotation direction of the wheels of the two sets of the driving systems are the same, so that the driving route of the amphibious vehicle is a straight line;

[0027] In the water driving and turning state, the wheels of the two sets of the driving systems rotate in the same direction but at different speeds, so that the driving route of the amphibious vehicle is a curve;

[0028] In the state of rotating in place in the water, the wheels of the two sets of the driving systems rotate in opposite directions but at the same speed, so that the amphibious vehicle can rotate in place.

[0029] Optionally, the drive system includes a steering gear, which, in a non-water driving state, changes the steering angle of the wheels to turn the amphibious vehicle, and in a straight-line driving state in the water, a steering state in the water, and a rotating state in situ in the water, the steering angle of the wheels of each group of the drive systems is the same.

[0030] According to a fourth aspect of the present disclosure, there is provided an amphibious vehicle comprising the travel and steering system as described above.

[0031] Through the above technical solution, when the blades are in the deployed position and the spoke body rotates with the wheel, the blades can provide the wheel with propulsion force along the axial direction of the wheel. When applied to an amphibious vehicle, for example, the amphibious vehicle can be driven sideways in the water. Specifically, the blades can be rotated from the initial position to the deployed position through the driving member so as to have an angle with the spoke body. When the wheel rotates around the axial direction, the spoke body drives the blades to rotate synchronously around the axial direction of the wheel. Therefore, at this time, the blades can push the water flow during the rotation process to generate a reaction force, thereby driving the amphibious vehicle to drive sideways in the water. In this way, the vehicle's own drive system can be used without the need to add an additional propeller and drive structure. The structure is simple, the additional weight is small, and the cost is low.

[0032] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0034] Figure 1 is a schematic diagram of the overall structure of a wheel provided in an exemplary embodiment of the present disclosure, wherein the blades are located in an initial position;

[0035] Figure 2 is a schematic diagram of the overall structure of a wheel provided in an exemplary embodiment of the present disclosure, wherein the blades are in an unfolded position;

[0036] Figure 3 is a schematic diagram of an exploded structure of a wheel provided in an exemplary embodiment of the present disclosure;

[0037] Figure 4 is a schematic diagram of a structure in which a spoke body is connected to a hub and a rim in an exemplary embodiment of the present disclosure;

[0038] Figure 5 is a structural schematic diagram of the fluid flow direction when the wheel rotates in an exemplary embodiment of the present disclosure;

[0039] Figure 6 is a schematic diagram of the overall structure of a blade provided in an exemplary embodiment of the present disclosure;

[0040] Figure 7 is a schematic cross-sectional structure diagram of a wheel provided in an exemplary embodiment of the present disclosure;

[0041] Figure 8 is a schematic structural diagram of a driving and steering system provided in an exemplary embodiment of the present disclosure;

[0042] Fig. 9 is a motion schematic diagram of an amphibious vehicle provided in an exemplary embodiment of the present disclosure in a state of straight-line driving in water;

[0043] Fig.10 is a motion schematic diagram of an amphibious vehicle provided in an exemplary embodiment of the present disclosure in a state of driving and turning in water;

[0044] Fig.11 is a motion schematic diagram of an amphibious vehicle provided in an exemplary embodiment of the present disclosure in a state of driving and turning in water;

[0045] Fig.12 It is a motion schematic diagram of an amphibious vehicle provided in an exemplary embodiment of the present disclosure in a state of rotating in situ in water.

[0046] Description of Reference Numerals

[0047] 1. Spoke body; 11. Mounting groove; 12. First water inlet channel; 13. Channel; 2. Blades; 3. Driving member; 31. Water-absorbing expansion member; 4. Waterproof structure; 41. Sealing plug; 5. First limiting structure; 51. Elastic fixing card; 52. Fixing groove; 6. Second limiting structure; 61. Limiting block; 7. Rim; 8. Hub; 81. Second water inlet channel; 9. Driving system; 91. Steering gear. DETAILED DESCRIPTION

[0048] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0049] In the present disclosure, unless otherwise stated, "inside" and "outside" refer to the inside and outside of the outline of the corresponding component; "far" and "near" refer to the distance and nearness of the corresponding component in space relative to another component. In addition, the terms "first", "second", etc. used in the present disclosure are to distinguish one element from another element and do not have order and importance. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0050] The spoke structure, wheel, travel and steering system, and amphibious vehicle in exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0051] The amphibious vehicle provided by the present disclosure can float on the water surface through the sealing of its own structure. Therefore, when the amphibious vehicle is driving in the water or accidentally falls into the water and needs self-rescue, the blades 2 arranged on the spoke structure of the wheel can be used to achieve lateral driving. Compared with the additional propeller, drive structure and air cushion and other related structures for the vehicle to drive in the water, the additional weight can be reduced, the whole vehicle can be lightweight, the energy consumption can be reduced to reduce the cost, and the driving efficiency of the amphibious vehicle can be improved. In addition, the wheel of the present disclosure is directly connected to the driving system of the amphibious vehicle, and there is no need to set up an additional drive device such as a drive device for driving the propeller to rotate. The drive system can provide greater torque and thrust, so as to achieve rapid escape from danger after the amphibious vehicle accidentally falls into the water. At the same time, the multi-axis drive is also conducive to ensuring the stability of the amphibious vehicle when it is driving normally in the water or driving in the water when it is quickly avoiding danger.

[0052] According to the first aspect of the present disclosure, referring to Figures 1 to 7 The present invention provides a spoke structure, which is applied to a wheel. The spoke structure includes a spoke body 1, blades 2 and a driving member 3. The blades 2 are rotatably connected to the spoke body 1 and have an initial position and a deployed position relative to the spoke body 1. In the deployed position, in response to the spoke body 1 rotating with the wheel, the blades 2 provide a propulsion force for the wheel to move along the axial direction of the wheel. The driving member 3 is arranged on at least one of the spoke body 1 and the blades 2, and is used to drive the blades 2 to switch from the initial position to the deployed position.

[0053] Through the above technical solution, when the blades 2 are in the deployed position and the spoke body 1 rotates with the wheel, the blades 2 can provide the wheel with propulsion along the axial direction of the wheel. When applied to an amphibious vehicle, for example, the amphibious vehicle can be driven sideways in the water. Specifically, the blades 2 can be rotated from the initial position to the deployed position through the driving member 3 so as to have an angle with the spoke body 1. When the wheel rotates around the axial direction, the spoke body 1 drives the blades 2 to rotate synchronously around the axial direction of the wheel. Therefore, at this time, the blades 2 can push the water flow during the rotation process to generate a reaction force, thereby driving the amphibious vehicle to drive sideways in the water. In this way, the vehicle's own drive system can be used without the need to add an additional propeller and drive structure. The structure is simple, the additional weight is small, and the cost is low.

[0054] In some embodiments, reference Figure 2 and Figure 3The driving member 3 may include a water-absorbing expansion member 31 disposed on the spoke body 1 , and the spoke body 1 is provided with a mounting groove 11 for accommodating the water-absorbing expansion member 31 and a first water inlet channel 12 communicating with the mounting groove 11 . Among them, the water-absorbing expansion member 31 expands in volume when it comes into contact with water and has a certain strength. Exemplarily, the water-absorbing expansion member 31 can be a polymer water-absorbing expansion material such as polyacrylamide gel, or a mineral water-absorbing expansion material such as bentonite, or a composite water-absorbing expansion material composed of a polymer material and a mineral material. In this way, when the amphibious vehicle is driving in the water or accidentally falls into the water, the water flow can flow into the first water inlet channel 12, and then flow along the first water inlet channel 12 to the mounting groove 11. At this time, the water-absorbing expansion member 31 absorbs water and expands to push the blade 2, so that the blade 2 can switch from the initial position to the deployed position, that is, the blade 2 can rotate around the axis on the spoke body 1 to have an angle with the spoke body 1, and then can provide a propulsion force for the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel sideways in the water, wherein the turning angle of the wheel allows the vehicle to travel normally forward or backward on land, and lateral travel can be understood as the vehicle can travel along the width direction of the vehicle. It is understandable that in some other possible deformation modes, the water-absorbing expansion member 31 can also be provided on the blade 2, and in this case, a receiving groove for accommodating the water-absorbing expansion member 31 and a water inlet flow path connected to the receiving groove can be provided on the blade 2. Similarly, when the amphibious vehicle is traveling in the water or accidentally falls into the water, the water flow can flow into the water inlet flow path, and then flow along the water inlet flow path to the receiving groove. At this time, the water-absorbing expansion member 31 absorbs water and expands to push the spoke body 1 and react to the blade 2, so that the blade 2 can rotate from the initial position to the unfolded position to have an angle with the spoke body 1, and then can provide thrust for the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel sideways in the water. Of course, the water-absorbing expansion member 31 can also be provided on both the spoke body 1 and the blade 2, and the present disclosure does not make specific limitations on this.

[0055] In addition, in some other possible embodiments not shown in the drawings, the driving member 3 may also include a hydraulic cylinder, a cylinder or a linear motor, etc., which is arranged on the spoke body 1. Taking the driving member 3 as an example, the hydraulic cylinder can be installed on one side of the spoke body 1, and the side edge of the blade 2 corresponding to the side of the spoke body 1 on which the hydraulic cylinder is installed protrudes from the spoke body 1, so as to be able to be used for the pushing action of the piston rod of the hydraulic cylinder. When the amphibious vehicle is traveling in the water or accidentally falls into the water, the piston rod of the hydraulic cylinder pushes the blade 2 to rotate from the initial position to the unfolded position, so as to have an angle with the spoke body 1, and then can provide thrust for the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel sideways in the water. Of course, the hydraulic cylinder can be manually opened by the driver, or it can be automatically opened by the detection system of the amphibious vehicle after detecting that the vehicle falls into the water or needs to travel in the water. For example, a collective control system of a sensor and a controller can be adopted, and the controller can be a PLC controller, a DCS controller or a CNC controller, etc. The specific action process of the hydraulic cylinder is not described in detail in this disclosure.

[0056] The following description will be continued by taking the driving member 3 including the water-absorbing expansion member 31 as an example. In some embodiments, Figure 1 In the initial position, the blade 2 is attached to the spoke body 1 and covers the mounting groove 11, so that the mounting groove 11 can be sealed by the blade 2. In a rainy environment, rainwater may enter the mounting groove 11 from the gap between the blade 2 and the spoke body 1, causing the water-absorbing expansion member 31 to expand, and the blade 2 is switched to the deployed position. The erroneous opening situation is reduced.

[0057] Further, refer to Figure 7 A waterproof structure 4 may be provided between the blade 2 and the water-absorbing and expanding member 31 to increase the possibility that the water-absorbing and expanding member 31 may absorb water and expand when not required, i.e., when the amphibious vehicle is traveling on land, causing the blade 2 to be mistakenly opened to the deployed position. For example, in some embodiments, the waterproof structure 4 may include a sealing plug 41. In the initial position, the sealing plug 41 is inserted into the mounting groove 11 and is located between the water-absorbing and expanding member 31 and the blade 2. In this way, the sealing plug 41 can block water such as rainwater flowing into the gap between the blade 2 and the spoke body 1 from flowing into the mounting groove 11, thereby reducing the possibility of the water-absorbing and expanding member 31 absorbing water accidentally and ensuring the normal driving of the amphibious vehicle on land. Among them, the sealing plug 41 can be made of waterproof materials such as rubber or silicone, and is inserted into the opening of the mounting groove 11 near the blade 2. In addition, after the amphibious vehicle is driving in the water or accidentally falls into the water, the water flow can flow into the first water inlet channel 12, and then flow along the first water inlet channel 12 to the mounting groove 11. At this time, the water-absorbing and expanding member 31 absorbs water and expands to push the sealing plug 41 out of the mounting groove 11, and at the same time can push the blade 2 to switch the blade 2 to the deployed position.

[0058] In some embodiments, reference Figures 3 to 6 The spoke structure may further include a first limiting structure 5, which is used to unlockably lock the blade 2 in the initial position, and the driving member 3 is used to unlock the first limiting structure 5, so that the blade 2 switches from the initial position to the deployed position. In this way, when the amphibious vehicle is traveling on land, the blade 2 is locked in the initial position by the first limiting structure 5 so as not to affect the normal driving of the vehicle. After traveling in water or accidentally falling into water, the driving member 3 unlocks the first limiting structure 5, so that the blade 2 can rotate from the initial position to the deployed position, so as to have an angle with the spoke body 1, and then can provide thrust for the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel sideways in water.

[0059] Optionally, in some embodiments, the first limiting structure 5 may include an elastic fixing card 51 and a fixing groove 52, wherein the elastic fixing card 51 is provided on one of the spoke body 1 and the blade 2, and the fixing groove 52 is formed on the other, so that the blade 2 can be locked in the initial position by the engagement between the elastic fixing card 51 and the fixing groove 52. Figures 3 to 6 The elastic fixing card 51 is arranged on the side of the blade 2 close to the spoke body 1, and the fixing groove 52 is formed on the side of the spoke body 1 close to the blade 2. Specifically, the elastic fixing card 51 includes an extension and a protrusion arranged on the side edge of the extension. At the same time, the fixing groove 52 includes a first groove body for accommodating the extension and a second groove body for accommodating the protrusion. The second groove body is formed on the side wall of the first groove body, so that the protrusion can be inserted into the second groove body to lock the blade 2 in the initial position. When the amphibious vehicle is driving in the water or accidentally falls into the water, under the action of the driving member 3 such as the water-absorbing expansion member 31, the elastic fixing card 51 is elastically deformed so that the protrusion is separated from the second groove body, and the blade 2 can rotate from the initial position to the unfolded position to have an angle with the spoke body 1, and then can provide thrust to the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can drive sideways in the water. The end surface of the protrusion inserted into the second slot body is configured to be arc-shaped, so that the protrusion can be inserted into the second slot body or detached from the second slot body.

[0060] It is understandable that in some other possible embodiments not shown in the accompanying drawings, the elastic fixing card 51 can also be arranged on the side of the spoke body 1 close to the blade 2, and accordingly, the fixing groove 52 is formed on the side of the blade 2 close to the spoke body 1, which can also enable the blade 2 to be unlocked and locked in the initial position. It should be noted that the first limiting structure 5 can also include a first magnet arranged on the blade 2 and a second magnet arranged on the spoke body 1, wherein the first magnet and the second magnet can be magnetically connected so that the blade 2 can be unlocked and locked in the initial position. Of course, under the action of the driving member 3 of the water-absorbing expansion member 31, the first magnet and the second magnet can be separated so that the blade 2 can rotate from the initial position to the unfolded position. Of course, the first limiting structure 5 can be constructed as any structure that can enable the blade 2 to be unlocked and locked in the initial position, and the present disclosure is not limited to this.

[0061] In some embodiments, reference Figures 3 to 6 , the blade 2 can be rotatably connected to the spoke body 1 through a hinge structure. Specifically, the hinge structure can include a first connection block provided on the spoke body 1, and a pair of second connection blocks provided on the blade 2 and spaced apart on both sides of the first connection block. The first connection block and the second connection block can be connected through a hinge shaft to realize the rotation of the blade 2. The hinge structure and the first limiting structure 5 are located on opposite sides of the spoke body 1 and / or the blade 2 along the circumference of the wheel, so that the blade 2 can be better fitted with the spoke body 1 in the initial position, thereby improving the stability of the blade 2 in the initial position.

[0062] In some embodiments, the spoke structure may further include a second limiting structure 6. In the deployed position, the second limiting structure 6 and the water-absorbing expansion member 31 act together on the blade 2 to keep the blade 2 in the deployed position, so that an angle is formed between the blade 2 and the spoke body 1, and then a thrust can be provided to the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel sideways in the water. It can be understood that in the above process, the water-absorbing expansion member 31 has a certain strength after swelling with water. The water-absorbing expansion member 31 provides a thrust for the blade 2 to move in a direction away from the spoke body 1, and the second limiting structure 6 provides a resistance to stop the blade 2 from moving in a direction away from the spoke body 1, so the water-absorbing expansion member 31 cooperates with the second limiting structure 6 to enable the blade 2 and the spoke body 1 to have an angle suitable for the amphibious vehicle to travel in the water.

[0063] Optionally, in some embodiments, referring to Figure 3 and Figure 4The second limiting structure 6 may include a limiting block 61 arranged on the spoke body 1. In the deployed position, the blade 2 is stopped between the limiting block 61 and the water-absorbing expansion member 31. In this way, the limiting block 61 can stop the water-absorbing expansion member 31 from driving the blade 2 to rotate away from the spoke body 1, so that the blade 2 will not rotate to an excessively large angle with the spoke body 1 under the action of the water-absorbing expansion member 31, and lose the thrust for axial movement of the wheel, so that the amphibious vehicle can travel laterally in the water.

[0064] In addition, in some other possible embodiments not shown in the drawings, the second limiting structure 6 may also include a cable connected between the blade 2 and the spoke body 1, and the two ends of the cable may be connected to the side edges of the blade 2 and the spoke body 1, respectively, and arranged outside the blade 2 and the spoke body 1, or the cable may be received in a receiving groove provided on the spoke body 1 or the blade 2, one end of the cable is connected to the bottom of the receiving groove, and the other end is connected to the spoke body 1 or the blade 2. When the blade 2 is in the initial position, the cable is in a relaxed state, and when the blade 2 is in the unfolded position, the cable is in a taut state, providing a pulling force for the blade 2 to limit the rotation away from the spoke body 1, so as to cooperate with the water-absorbing expansion member 31 to keep the blade 2 in the unfolded position. Of course, the second limiting structure 6 may also be constructed in any other suitable manner, such as a telescopic rod, etc., so as to cooperate with the water-absorbing expansion member 31 to keep the blade 2 in the unfolded position, and the present disclosure does not make any specific limitation on this.

[0065] In some embodiments, reference Figures 3 to 5 The spoke body 1 may be formed with a channel 13 for water flow to pass through, and the channel 13 extends in a direction perpendicular or inclined to the axial direction of the wheel, so that when the amphibious vehicle is traveling in the water or accidentally falls into the water, the blades 2 can be placed in the deployed position. For example, referring to Figure 5 In the direction of the drawing, the wheel rotates counterclockwise at this time, and the water flow can flow through the gaps between the spoke bodies 1 from the side of the spoke body 1 away from the blade 2 to the side of the spoke body 1 connected with the blade 2. At the same time, part of the water flow, driven by the blade 2, flows from the side of the spoke body 1 away from the blade 2 through the channel 13 to the side of the spoke body 1 connected with the blade 2. Therefore, under the action of the reverse thrust of the water flow, the amphibious vehicle moves toward the side away from the spoke body 1 where the blade 2 is arranged.

[0066] In some other possible embodiments not shown in the drawings, the wheel can rotate clockwise, and at this time, the water flow can flow through the gaps between the spoke bodies 1 from the side of the spoke body 1 connected to the blades 2 to the side of the spoke body 1 away from the blades 2. At the same time, part of the water flow can flow from the side of the spoke body 1 connected to the blades 2 through the channel 13 to the side of the spoke body 1 away from the blades 2 under the push of the blades 2. Therefore, under the action of the reverse thrust of the water flow, the amphibious vehicle moves toward the side of the spoke body 1 provided with the blades 2.

[0067] It is understandable that part of the water flowing through the channel 13 can reduce the resistance of the amphibious vehicle when traveling sideways, thereby reducing energy consumption and improving the driving efficiency of the amphibious vehicle. In addition, the provision of the channel 13 can also achieve the effect of weight reduction, which is conducive to lightweight design.

[0068] In addition, in some embodiments, reference Figure 1 In the initial position, the blade 2 can fit the spoke body 1 and cover the channel 13. When the amphibious vehicle is traveling on land, the blade 2 is placed in the initial position. At this time, the blade 2 fits the spoke body 1 to close the channel 13 in one direction, thereby protecting the channel 13 on this side and reducing the possibility of impurities accumulating in the channel 13 and affecting the flow of water through the channel 13 when the amphibious vehicle is traveling in water.

[0069] According to the second aspect of the present disclosure, referring to Figures 1 to 7 , provides a wheel, including a rim 7, a hub 8 and the above spoke structure, wherein the spoke body 1 is connected between the rim 7 and the hub 8, so that when the amphibious vehicle is traveling on land, the rotation of the wheel can drive the vehicle forward or backward, and when the amphibious vehicle is traveling in water, the rotation of the wheel can drive the vehicle sideways.

[0070] In some embodiments, reference Figure 7 A second water inlet channel 81 may be provided on the wheel hub 8, and the second water inlet channel 81 is connected to the mounting groove 11 on the spoke body 1 for accommodating the driving member 3 including the water-absorbing expansion member 31. In this way, in combination with the above description, when the amphibious vehicle is traveling in water or accidentally falls into water, water flows into the interior of the wheel hub 8 from the second water inlet channel 81, and then flows into the first water inlet channel 12 provided on the spoke body 1 along the second water inlet channel 81, and then flows into the mounting groove 11 along the first water inlet channel 12, and the water-absorbing expansion member 31 absorbs water and expands, so that the blade 2 can rotate from the initial position to the deployed position, so as to have an angle with the spoke body 1, and then can provide thrust for the wheel to move along the axial direction of the wheel, so that the amphibious vehicle can travel laterally in the water.

[0071] The inlet of the second water inlet channel 81 can be arranged on at least one of the inner peripheral wall, the outer peripheral wall, the axial inner side wall and the axial outer side wall of the hub 8. For example, referring to Figure 7 The inlet of the second water inlet channel 81 is arranged on the inner circumferential wall of the wheel hub 8. When the amphibious vehicle is traveling on land, the distance between the inner circumferential wall of the wheel hub 8 and the wheel in contact with the ground is the longest, so that the vehicle can be reduced in the wading state. When the vehicle is in the water, the water flows from the second water inlet channel 81 into the inside of the wheel hub 8, and then flows along the second water inlet channel 81 into the first water inlet channel 12 arranged on the spoke body 1, and then flows along the first water inlet channel 12 into the mounting groove 11, and the water-absorbing expansion member 31 absorbs water and expands, so that the blade 2 can rotate from the initial position to the unfolded position, that is, the blade 2 is mistakenly opened. It can be understood that, under the premise of meeting the normal driving requirements of the wading road conditions, the inlet of the second water inlet channel 81 can also be arranged on the outer circumferential wall, the axial inner wall and the axial outer wall of the wheel hub 8, and the present disclosure does not make specific limitations on this.

[0072] According to a third aspect of the present disclosure, a driving and steering system is provided, which is applied to an amphibious vehicle. The driving and steering system includes a plurality of drive systems 9 arranged at intervals along the front and rear directions of the amphibious vehicle. The drive system 9 includes a first wheel and a second wheel arranged at intervals along the width direction of the amphibious vehicle. The first wheel and the second wheel adopt the wheels as described above. The blade 2 of the first wheel is located on the side away from the second wheel, and the blade 2 of the second wheel is located on the side facing the first wheel. In this way, when the amphibious vehicle is driving in the water or accidentally falls into the water, the blade 2 of the first wheel and the blade 2 of the second wheel have the same rotation direction, so as to facilitate the amphibious vehicle to travel sideways in the water. Exemplarily, the first wheel can be a left wheel, and the second wheel can be a right wheel. The blade 2 of the left wheel is located on the side away from the right wheel, and the blade 2 of the right wheel is located on the side facing the left wheel. Of course, the first wheel can also be a right wheel, and the second wheel can be a left wheel. In this case, the blade 2 of the right wheel is located on the side away from the left wheel, and the blade 2 of the left wheel is located on the side facing the right wheel.

[0073] Each drive system 9 adopts a power device, which is used to drive the wheels to rotate, or multiple drive systems 9 adopt a power device, which is used to control the wheels of each drive system 9 to rotate independently. In this way, the rotation direction and rotation speed of the wheels of any drive system 9 can be independently controlled, so that the amphibious vehicle can have different driving states when driving in water, and it is convenient to switch the driving state. The power device can be a power source such as a drive motor for driving the vehicle. It can be understood that the power device can adopt any suitable power device on the existing vehicle, and the present disclosure does not make specific limitations on this.

[0074] In some embodiments, reference Figures 8 to 12 The number of drive systems 9 can be set to two groups, and the rotation directions and rotation speeds of the wheels of the driving and steering systems are different, so that the amphibious vehicle includes a straight-line driving state in water, a steering state in water, and a rotating state in water. It should be noted that the driving force received by the amphibious vehicle when driving in water is the reaction force of the wheels to the thrust of the water flow. The state of the amphibious vehicle driving in water is specifically described below.

[0075] For example, refer to Fig. 9 In the state of straight-line driving in water, the rotation speed and rotation direction of the wheels of the two drive systems 9 are the same, so that the driving route of the amphibious vehicle is a straight line. Referring to the direction of the map, the amphibious vehicle is driving to the right at this time. Of course, the figure only exemplarily reflects the state of the amphibious vehicle driving in a straight line in one direction. In some other possible implementations not shown in the drawings, when the rotation speed and rotation direction of the wheels of the two drive systems 9 are the same, but opposite to the rotation direction of the wheels of the two drive systems 9 in the figure, the amphibious vehicle can drive in a straight line in the direction opposite to the direction in the figure, that is, the amphibious vehicle can drive to the left.

[0076] For example, refer to Fig.10 and Fig.11 In the state of turning while driving in water, the wheels of the two drive systems 9 rotate in the same direction but at different speeds, so that the driving route of the amphibious vehicle is a curve, so that the turning of the amphibious vehicle while driving in water can be realized. Specifically, Fig.10 As shown, referring to the drawing direction, the thrust provided by the front drive system 9 and the rear drive system 9 of the amphibious vehicle is both to the left, but the thrust of the rear drive system 9 is greater than the thrust of the front drive system 9. At this time, the amphibious vehicle can travel to the right and turn left. Fig.11 As shown, referring to the drawing direction, the thrust provided by the front drive system 9 and the rear drive system 9 of the amphibious vehicle are both to the left, but the thrust of the rear drive system 9 is less than the thrust of the front drive system 9. At this time, the amphibious vehicle can travel to the right and turn right. Of course, in some other possible embodiments not shown in the drawings, the thrust provided by the front drive system 9 and the rear drive system 9 of the amphibious vehicle can both be to the right, and the thrust of the rear drive system 9 is different from the thrust of the front drive system 9. At this time, the amphibious vehicle can travel to the left and turn left or right adaptively, and this will not be repeated in the present disclosure.

[0077] For example, refer to Fig.12, in the state of rotating in place in water, the wheels of the two sets of drive systems 9 rotate in opposite directions but at the same speed, so that the amphibious vehicle can rotate in place. Referring to the direction of the map, the thrust provided by the front drive system 9 of the amphibious vehicle is to the left, and the thrust provided by the rear drive system 9 is to the right. At this time, the amphibious vehicle can rotate in place clockwise in water. It can be understood that in some other possible embodiments not shown in the drawings, the thrust provided by the front drive system 9 of the amphibious vehicle can be to the left, and the thrust provided by the rear drive system 9 can be to the right. At this time, the amphibious vehicle can rotate in place counterclockwise in water.

[0078] In some embodiments, reference Figure 8 The drive system 9 may include a steering gear 91. In the non-water driving state, the steering gear 91 changes the turning angle of the wheel to make the amphibious vehicle turn. In the straight-line driving state in water, the turning state in water driving and the in-situ rotation state in water, the turning angle of the wheel of each set of the drive system 9 is the same. That is to say, when the amphibious vehicle is driving in water, it involves switching of the driving state. For example, when the amphibious vehicle needs to switch from the straight-line driving state in water to the turning state in water driving, the turning angle of the wheel can be changed without the steering gear 91, and only the magnitude and direction of the thrust provided by the drive system 9 can be changed to complete the change of the vehicle's driving state in water, and the adjustment process is more convenient.

[0079] According to a fourth aspect of the present disclosure, an amphibious vehicle is provided, comprising the above-mentioned driving and steering system. The amphibious vehicle has all the beneficial effects of the above-mentioned driving and steering system, which are not described in detail in the present disclosure. In addition, the amphibious vehicle can be a fuel vehicle, a plug-in hybrid vehicle, or a new energy vehicle, etc., which is not specifically limited in the present disclosure.

[0080] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0081] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0082] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A spoke structure, applied to a wheel, characterized in that: The spoke structure comprises: Spoke body; a blade rotatably connected to the spoke body and having an initial position relative to the spoke body and a deployed position, wherein in the deployed position, in response to the spoke body rotating with the wheel, the blade provides a propulsive force for the wheel to move in an axial direction of the wheel; and A driving member is disposed on at least one of the spoke body and the blades, and is used to drive the blades to switch from the initial position to the expanded position.

2. The spoke structure according to claim 1, characterized in that: The driving member comprises a water-absorbing and expanding member, and the spoke body is provided with a mounting groove for accommodating the water-absorbing and expanding member and a first water inlet channel communicating with the mounting groove.

3. The spoke structure according to claim 2, characterized in that: In the initial position, the blade is attached to the spoke body and covers the mounting groove.

4. The spoke structure according to claim 2, characterized in that: A waterproof structure is provided between the blade and the water-absorbing expansion member.

5. The spoke structure according to claim 4, characterized in that: The waterproof structure comprises a sealing plug. In the initial position, the sealing plug is inserted into the mounting groove and is located between the water-absorbing expansion member and the blade.

6. The spoke structure according to any one of claims 1 to 5, characterized in that: The spoke structure further includes a first limiting structure, which is used to unlockably lock the blades at the initial position, and the driving member is used to unlock the first limiting structure so that the blades can switch from the initial position to the expanded position.

7. The spoke structure according to claim 6, characterized in that: The first limiting structure includes an elastic fixing card and a fixing groove, the elastic fixing card is arranged on one of the spoke body and the blade, and the fixing groove is formed on the other one.

8. The spoke structure according to claim 7, characterized in that: The blade is rotatably connected to the spoke body via a hinge structure, and the hinge structure and the first limiting structure are located on opposite sides of the spoke body and / or the blade along the circumference of the wheel.

9. The spoke structure according to any one of claims 2 to 5, characterized in that: The spoke structure further comprises a second limiting structure. In the deployed position, the second limiting structure and the water-swellable member act together on the blade to keep the blade in the deployed position.

10. The spoke structure according to claim 9, characterized in that: The second limiting structure comprises a limiting block arranged on the spoke body, and in the unfolded position, the blade is stopped between the limiting block and the water-absorbing expansion member.

11. The spoke structure according to claim 1, characterized in that: A channel for water to pass through is formed on the spoke body, and the channel extends in a direction perpendicular or inclined to the axial direction of the wheel.

12. The spoke structure according to claim 11, characterized in that: In the initial position, the blades are attached to the spoke body and cover the channel.

13. A wheel, characterized in that: The wheel spoke structure comprises a wheel rim, a wheel hub and the wheel spoke structure according to any one of claims 1 to 12, wherein the wheel spoke body is connected between the wheel rim and the wheel hub.

14. The wheel according to claim 13, characterized in that A second water inlet channel is provided on the wheel hub, and the second water inlet channel is connected to a mounting groove on the spoke body for accommodating the driving member including a water-absorbing expansion member, and an inlet of the second water inlet channel is provided on at least one of the inner circumferential wall, outer circumferential wall, axial inner side wall and axial outer side wall of the wheel hub.

15. A driving and steering system, applied to an amphibious vehicle, characterized in that: The travel and steering system comprises a plurality of drive systems arranged at intervals along the front-rear direction of the amphibious vehicle, the drive system comprises a first wheel and a second wheel arranged at intervals along the width direction of the amphibious vehicle, the first wheel and the second wheel are the wheels according to claim 13 or 14, the blades of the first wheel are located on a side away from the second wheel, and the blades of the second wheel are located on a side facing the first wheel, Each set of the driving systems adopts a power device, and the power device is used to drive the wheels to rotate, or, A plurality of the drive systems share a common power device, which is used to control the wheels of each drive system to rotate independently.

16. The driving and steering system according to claim 15, characterized in that The number of the driving systems is two, and the driving and steering systems include a straight-line driving state in water, a steering state in water, and a rotation state in place in water. In the straight-line driving state in the water, the rotation speed and rotation direction of the wheels of the two sets of the driving systems are the same, so that the driving route of the amphibious vehicle is a straight line; In the water driving and turning state, the wheels of the two sets of the driving systems rotate in the same direction but at different speeds, so that the driving route of the amphibious vehicle is a curve; In the state of rotating in place in the water, the wheels of the two sets of the driving systems rotate in opposite directions but at the same speed, so that the amphibious vehicle can rotate in place.

17. The driving and steering system according to claim 16, characterized in that The driving system includes a steering gear. In a non-water driving state, the steering gear changes the turning angle of the wheels to make the amphibious vehicle turn. In the water straight driving state, the water driving turning state and the water in-situ rotating state, the turning angle of the wheels of each group of the driving system is the same.

18. An amphibious vehicle, characterized in that: A driving and steering system comprising any one of claims 15-17.

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