阅读说明：本技术 车辆结构 (Vehicle structure ) 是由 冯宇 张囝 于 2019-02-13 设计创作，主要内容包括：本公开提供了一种车辆结构,包括：车体(100)；支撑结构(200),可活动地连接于所述车体(100)；车轮结构(300),可活动地连接于所述车体(100)；以及传动结构(400),所述传动结构(400)的第一端连接于所述支撑结构(200),第二端连接于所述车轮结构(300),其中,在所述支撑结构(200)相对于所述车体(100)运动时,所述支撑结构(200)通过所述传动结构(400)向所述车轮结构(300)施加第一方向的压力,以增加所述车轮结构(300)与接触面的压力。(The present disclosure provides a vehicle structure including: a vehicle body (100); a support structure (200) movably connected to said vehicle body (100); a wheel structure (300) movably connected to the vehicle body (100); and a transmission structure (400), wherein a first end of the transmission structure (400) is connected to the support structure (200), and a second end of the transmission structure (400) is connected to the wheel structure (300), and when the support structure (200) moves relative to the vehicle body (100), the support structure (200) applies a pressure in a first direction to the wheel structure (300) through the transmission structure (400) so as to increase the pressure of the wheel structure (300) and a contact surface.)

1. A vehicle structure comprising:

a vehicle body (100);

a support structure (200) movably connected to said vehicle body (100);

a wheel structure (300) movably connected to the vehicle body (100); and

a transmission structure (400), the transmission structure (400) having a first end connected to the support structure (200) and a second end connected to the wheel structure (300),

wherein the support structure (200) applies a pressure in a first direction to the wheel structure (300) via the transmission structure (400) to increase the pressure of the wheel structure (300) with the contact surface when the support structure (200) is moved relative to the vehicle body (100).

2. The vehicle structure according to claim 1, wherein the support structure (200) entrains the transmission structure (400) to apply the pressure in the first direction to the wheel structure (300) when the support structure (200) is moved in a second direction relative to the vehicle body (100).

3. The vehicle structure according to claim 2, wherein the transmission structure (400) comprises:

a pulley (410) connected to the vehicle body (100); and

a connecting structure (420), a first end of the connecting structure (420) being connected to the support structure (200) via the pulley (410), a second end being connected to the wheel structure (300) via the pulley (410).

4. The vehicle structure according to claim 3, wherein the connecting structure (420) includes:

a tension spring (421), the tension spring (421) connected to the wheel structure (300);

a pull rope (422), a first end of the pull rope (422) is connected to the supporting structure (200) through the pulley (410), and a second end of the pull rope (422) is connected to the tension spring (421) through the pulley (410).

5. The vehicle structure according to claim 4, wherein upon movement of the support structure (200) in the second direction relative to the vehicle body (100), the support structure (200) brings about movement of the pull rope (422), the pull rope (422) pulling the tension spring (421) via the pulley (410) such that the energy stored by the tension spring (421) acts on the wheel structure (300) in the first direction.

6. The vehicle structure according to claim 1, wherein the wheel structure (300) includes:

a mounting base (310), said mounting base (310) being movably connected to said vehicle body (100); and

a wheel (320) connected to the mount (310).

7. The vehicle structure according to claim 6, wherein:

the vehicle body (100) includes: a first slide rail structure (110);

the mounting seat (310) is connected to the first rail structure (110), and the mounting seat (310) is slidable along the first rail structure (110) relative to the vehicle body (100).

8. The vehicle structure according to claim 6, further comprising a spring (500), wherein a first end of the spring (500) is connected with the vehicle body (100) and a second end is connected with the mounting seat (310) so that the weight of the vehicle body (100) acts on the mounting seat (310) through the spring (500).

9. The vehicle structure according to claim 1, wherein:

the vehicle body (100) includes: a second slide rail structure (120);

the support structure (200) is connected to the second rail structure (120), and the support structure (200) is slidable along the second rail structure (120) relative to the vehicle body (100).

10. The vehicle arrangement according to claim 1, wherein the transmission arrangement (400) comprises a first transmission arrangement (400a) and a second transmission arrangement (400b), the first transmission arrangement (400a) being connected with a first side of the support arrangement (200) and a first side of the wheel arrangement (300), the second transmission arrangement (400b) being connected with a second side of the support arrangement (200) and a second side of the wheel arrangement (300).

Technical Field

The present disclosure relates to the field of warehouse logistics, and more particularly, to a vehicle structure.

Background

With the rapid development of the logistics industry, vehicles for carrying goods are diversified. For example, AGV (automated Guided vehicle) carts are used to handle goods in logistics storage. The conventional AGV trolley is easy to slip or deviate in the running process. Therefore, how to avoid the slipping or deviation of the AGV trolley in the running process becomes a problem which needs to be solved urgently.

In the course of implementing the inventive concept, the inventor finds at least the following problems in the prior art, which generally increases the positive pressure of the wheels of the vehicle (for example, the positive pressure of the driving wheels) by increasing the weight of the vehicle to avoid the vehicle from slipping or deviating as much as possible, but the transportation efficiency and the performance parameters of the vehicle are reduced due to the increased weight of the vehicle.

Disclosure of Invention

In view of this, the present disclosure provides a vehicle structure.

The present disclosure provides a vehicle structure including: the vehicle comprises a vehicle body, a supporting structure, a wheel structure and a transmission structure. Wherein, bearing structure movably connect in the automobile body, wheel structure movably connect in the automobile body, transmission structure's first end connect in bearing structure, the second end connect in the wheel structure, wherein, bearing structure for when the automobile body motion, bearing structure passes through transmission structure to the pressure of first direction is applyed to the wheel structure, in order to increase the pressure of wheel structure and contact surface.

According to the embodiment of the disclosure, when the supporting structure moves towards the second direction relative to the vehicle body, the supporting structure drives the transmission structure to apply the pressure of the first direction to the wheel structure.

According to an embodiment of the present disclosure, the transmission structure includes: pulley and connection structure. Wherein the pulley is connected to the vehicle body, a first end of the connecting structure is connected to the support structure via the pulley, and a second end is connected to the wheel structure via the pulley.

According to an embodiment of the present disclosure, the above-described connection structure includes: a tension spring and a pull rope. Wherein, the extension spring connect in the wheel structure, the first end of stay cord via the pulley connect in bearing structure, the second end via the pulley connect in the extension spring.

According to the embodiment of the disclosure, when the supporting structure moves towards the second direction relative to the vehicle body, the supporting structure drives the pull rope to move, and the pull rope pulls the tension spring through the pulley, so that the energy stored by the tension spring acts on the wheel structure towards the first direction.

According to an embodiment of the present disclosure, the wheel structure described above includes: mount pad and wheel. The mounting seat is movably connected to the vehicle body, and the wheels are connected to the mounting seat.

According to an embodiment of the present disclosure, the vehicle body includes: the mounting seat is connected to the first slide rail structure and can slide relative to the vehicle body along the first slide rail structure.

According to an embodiment of the present disclosure, the vehicle structure further includes a spring, a first end of the spring is connected to the vehicle body, and a second end of the spring is connected to the mounting seat, so that the weight of the vehicle body acts on the mounting seat through the spring.

According to an embodiment of the present disclosure, the vehicle body includes: a second slide rail structure, the support structure connected to the second slide rail structure, the support structure being slidable along the second slide rail structure relative to the vehicle body.

According to an embodiment of the present disclosure, the above transmission structure comprises a first transmission structure and a second transmission structure, the first transmission structure is connected with the first side of the support structure and the first side of the wheel structure, and the second transmission structure is connected with the second side of the support structure and the second side of the wheel structure.

Through the structure of the embodiment of the disclosure, the problem that in the prior art, the positive pressure of the wheels of the vehicle (for example, the positive pressure of the driving wheels) is increased by increasing the vehicle weight to avoid the vehicle from slipping or deviating as much as possible can be at least partially solved, but the transportation efficiency and the performance parameters of the vehicle are reduced due to the increase of the weight of the vehicle in the manner, so that the pressure between the wheel structure and the contact surface is effectively increased, and the technical effect of preventing the vehicle from slipping or deviating is achieved.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent from the following description of embodiments of the present disclosure with reference to the accompanying drawings, in which:

FIG. 1 schematically illustrates a perspective view of a vehicle structure according to an embodiment of the disclosure; and

fig. 2 schematically illustrates a front view of a vehicle structure according to an embodiment of the present disclosure.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms, including technical and scientific terms, used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

Where a convention analogous to "at least one of A, B and C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention to include, for example, "a system having at least one of A, B and C" would include but not be limited to systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together, etc. Where a convention analogous to "A, B or at least one of C, etc." is used, in general such a construction is intended in the sense one having skill in the art would understand the convention to include, for example, "a system having at least one of A, B or C" would include but not be limited to systems having a alone, B alone, C alone, a and B together, a and C together, B and C together, and/or A, B, C together.

The present disclosure provides a vehicle structure including: the vehicle comprises a vehicle body, a supporting structure, a wheel structure and a transmission structure. The supporting structure is movably connected to the vehicle body, the wheel structure is movably connected to the vehicle body, the first end of the transmission structure is connected to the supporting structure, the second end of the transmission structure is connected to the wheel structure, and when the supporting structure moves relative to the vehicle body, the supporting structure applies pressure in a first direction to the wheel structure through the transmission structure so as to increase pressure of the wheel structure and the contact surface.

Fig. 1 schematically shows a perspective view of a vehicle structure according to an embodiment of the present disclosure.

As shown in fig. 1, the vehicle structure of the embodiment of the present disclosure includes: vehicle body 100, support structure 200, wheel structure 300, and transmission structure 400. Such as agv (automated Guided vehicle) carts, are used in warehouses for transporting goods.

The vehicle body 100 of the vehicle can be used to support or connect various components in the vehicle structure, and bear various loads from the inside and the outside of the vehicle structure, so as to ensure the overall structure of the vehicle.

The supporting structure 200 is movably connected to the vehicle body 100, the wheel structure 300 is movably connected to the vehicle body 100, the transmission structure 400 is connected to the supporting structure 200 at a first end of the transmission structure 400, and is connected to the wheel structure 300 at a second end thereof.

According to an embodiment of the present disclosure, the support structure 200 may be, for example, a top-mount portion of a vehicle, the support structure 200 being capable of moving up and down relative to the vehicle body 100. Wherein the support structure 200 can be used for supporting goods, for example. That is, the support structure 200 can jack up or release the cargo by moving up and down with respect to the vehicle body 100. For example, where the goods in the warehouse are placed on a shelf and the shelf is at a distance from the ground, the vehicle structure can be moved between the shelf and the ground and the support structure 200 is controlled to jack the shelf up so that the shelf is off the ground, the support structure 200 continues to hold the shelf. After the support structure 200 jacks up the rack, the vehicle continues to move to carry the rack located on the support structure 200 to another location.

In the present embodiment, the wheel structure 300 is mounted on the vehicle body 100, for example, and the wheel structure 300 can move up and down relative to the vehicle body 100, and the pressure of the wheel structure 300 and the contact surface is changed by moving up and down relative to the vehicle body 100. The wheel structure 300 can be used, for example, to drive the movement of a vehicle.

It will be appreciated that where the vehicle structure of the disclosed embodiment is an AGV cart, the wheel structure 300 of the disclosed embodiment includes, for example, the drive wheels of the AGV cart for driving the travel of the AGV cart. In addition, the AGV cart may include fixed wheels (universal wheels) that are different from the drive wheels, e.g., that are not movable up and down relative to the cart body 100, e.g., to support or share the majority of the weight of the vehicle structure. In other words, the wheel structure 300 is used to drive the movement of the vehicle and shares a portion of the weight of the vehicle structure (the weight of the vehicle shared by the wheel structure 300 is, for example, much lighter than the weight of the vehicle shared by the fixed wheels). The wheel structure 300 of the embodiment of the present disclosure is configured to be able to move up and down relative to the vehicle body 100, so as to change the pressure between the wheel structure 300 and the ground.

According to an embodiment of the present disclosure, the transmission structure 400 is, for example, a component between the support structure 200 and the wheel structure 300. The transmission structure 400 is used, for example, to convert the movement of the support structure 200 into a pressure force acting on the wheel structure 300. In other words, the transmission structure 400 is for example fixed at a first end to the support structure 200 and at a second end to the wheel structure 300. The transmission structure 400 is capable of transmitting the movement of the support structure 200 to the wheel structure 300 when the support structure 200 moves relative to the vehicle body 100. The details are described below.

Wherein, when the support structure 200 moves relative to the vehicle body 100, the support structure 200 applies a pressure in the first direction a to the wheel structure 300 through the transmission structure 400 to increase the pressure of the wheel structure 300 and the contact surface.

According to the embodiment of the present disclosure, when the support structure 200 jacks up the rack so that the rack is away from the ground, for example, when the vehicle is on the ground, the support structure 200 drives the transmission structure 400 to apply pressure to the wheel structure 300 by moving upward, so as to increase the pressure between the wheel structure 300 and the contact surface. The first direction a is, for example, a direction from the wheel structure 300 to the contact surface. For example, in the case where the vehicle is located on the ground, the first direction a is, for example, a direction directed toward the ground by the wheel structure 300.

That is, the vehicle structure of the embodiment of the present disclosure converts the movement of the supporting structure 200 into the pressure acting on the wheel structure 300 through the transmission structure 400, so as to increase the pressure between the wheel structure 300 and the contact surface, thereby increasing the pressure between the wheel structure 300 and the contact surface without increasing the self weight of the vehicle body 100, and then increasing the friction between the wheel structure 300 and the contact surface, thereby avoiding the vehicle from slipping and deviating.

Specifically, when the supporting structure 200 moves in the second direction B relative to the vehicle body 100, the supporting structure 200 drives the transmission structure 400 to apply a pressure in the first direction a to the wheel structure 300.

The second direction B is, for example, a direction in which the support structure 200 moves relative to the vehicle body 100 according to the disclosed embodiment. Wherein the second direction B is, for example, a direction in which the support structure 200 points away from the contact surface, and is, for example, opposite to the first direction a. For example, when the vehicle is located on the ground, the second direction B is, for example, a direction pointing away from the ground from the support structure 200. In other words, when the supporting structure 200 moves relative to the vehicle body 100, the transmission structure 400 is driven to apply a pressure to the wheel structure 300 in a reverse direction.

According to the embodiment of the present disclosure, when the support structure 200 of the vehicle structure moves in the second direction B relative to the vehicle body 100, the transmission structure 400 can be driven to apply a pressure in the first direction a to the wheel structure 300, so as to increase the pressure between the wheel structure 300 and the contact surface. The embodiment of the present disclosure converts the movement of the supporting structure 200 along the second direction B into the pressure applied to the wheel structure 300 along the first direction a by the transmission structure 400, so as to increase the pressure between the wheel structure 300 and the contact surface without increasing the self weight of the vehicle body 100, and then increase the friction between the wheel structure 300 and the contact surface, thereby avoiding the skid and the deviation of the vehicle.

Fig. 2 schematically illustrates a front view of a vehicle structure according to an embodiment of the present disclosure.

As shown in fig. 1 and 2, according to an embodiment of the present disclosure, the transmission structure 400 includes: pulley 410 and attachment structure 420. The pulley 410 is attached to the vehicle body 100. The connecting structure 420 is connected at a first end to the support structure 200 via the pulley 410 and at a second end to the wheel structure 300 via the pulley 410.

According to the embodiment of the present disclosure, the pulley 410 in the transmission structure 400 is fixed to the vehicle body 100, for example. The connecting structure 420 is used, for example, to connect the support structure 200 and the wheel structure 300. Specifically, the first end and the second end of the connection structure 420 pass around the pulley 410 and are respectively located at both sides of the pulley 410. That is, a first end of the connecting structure 420 is located, for example, on a first side of the pulley 410 and connected to the support structure 200, and a second end of the connecting structure 420 is located, for example, on a second side of the pulley 410 and connected to the wheel structure 300.

In other words, the pulley 410 is provided for changing the direction of movement of the support structure 200 and converting the changed direction of movement into a pressure applied to the wheel structure 300. For example, the support structure 200 moves in the second direction B, which moves the connection structure 420 on the first side of the pulley 410 in the second direction B, the connection structure 420 passes around the pulley 410, and the connection structure 420 on the second side of the pulley 410 moves in the first direction a, for example. That is, the connection structure 420 located at the second side of the pulley 410 applies a pressure of the first direction a to the wheel structure 300 by moving toward the first direction a, thereby increasing the pressure of the wheel structure 300 and the contact surface.

According to an embodiment of the present disclosure, the connection structure 420 includes: a tension spring 421 and a draw string 422. Wherein the tension spring 421 is connected to the wheel structure 300. The pull cord 422 is connected at a first end to the support structure 200 via the pulley 410 and at a second end to the tension spring 421 via the pulley 410.

In the embodiment of the present disclosure, a first end of the tension spring 421 is connected to the wheel structure 300, and a second end thereof is connected to the pull rope 422. Wherein the tension spring 421 can be used to store energy, for example, when the support structure 200 moves toward the second direction B, the support structure 200 drives the tension spring 421 to deform, and the deformed tension spring 421 can store energy and act on the wheel structure 300.

The pulling rope 422 may be, for example, a steel wire rope, the pulling rope 422 is wound around the pulley 410, and a first end and a second end of the pulling rope 422 are, for example, located on both sides of the pulley 410. Specifically, the pull cord 422 is coupled at a first end, for example, to the support structure 200 and at a second end, for example, to a tension spring 421.

According to the embodiment of the present disclosure, when the support structure 200 moves in the second direction B relative to the vehicle body 100, the support structure 200 drives the pulling rope 422 to move, and the pulling rope 422 pulls the tension spring 421 via the pulley 410, so that the energy stored in the tension spring 421 acts on the wheel structure 300 in the first direction a.

Specifically, when the support structure 200 moves in the second direction B relative to the vehicle body 100, the support structure 200 moves in the second direction B by pulling the portion of the pulling rope 422 located on the first side of the pulley 410, the portion of the pulling rope 422 located on the second side of the pulley 410 moves in the first direction a, for example, and the pulling rope 422 pulls the tension spring 421 stored with energy in the first direction a, and the stored energy of the tension spring 421 can act on the wheel structure 300 in the first direction a to increase the pressure of the wheel structure 300 against the contact surface.

According to an embodiment of the present disclosure, the wheel structure 300 includes: mount 310, and wheel 320. Mount 310 is movably coupled to body 100. Wheels 320 are attached to mount 310.

In the disclosed embodiment, the mounting seat 310 can be used, for example, to mount a wheel 320 to the vehicle body 100. The wheel 320 cannot move relative to the mounting seat 310, but moves relative to the vehicle body 100 through the mounting seat 310, so as to drive the wheel 320 to move relative to the vehicle body 100.

Where the vehicle structure of the disclosed embodiment is an AGV cart, the wheels 320 in the disclosed embodiment are, for example, driving wheels of the AGV cart, and the driving wheels are used for driving the AGV cart to run.

Specifically, the vehicle body 100 includes: in the first slide rail structure 110, the mounting seat 310 is connected to the first slide rail structure 110, and the mounting seat 310 can slide along the first slide rail structure 110 relative to the vehicle body 100.

The first slide rail structure 110 is, for example, a linear slide rail structure, and the first slide rail structure 110 is, for example, fixed to the vehicle body 100. The wheel structure 300 can move relative to the vehicle body 100, specifically, the mounting seat 310 of the wheel structure 300 is connected to the first slide rail structure 110, and the mounting seat 310 can move in the first slide rail structure 110 in the first direction a or the second direction B, so as to realize the movement of the wheel structure 300 relative to the vehicle body 100, so as to increase or decrease the pressure of the wheel 320 on the contact surface.

For example, when the supporting structure 200 moves in the second direction B (to jack up the shelf), a pressure in the first direction a is applied to the mounting base 310 through the transmission structure 400, and the mounting base 310 can drive the wheel 320 to move in the first direction a (where the movement of the wheel 320 includes, for example, a slight displacement of the wheel 320 or a deformation of the wheel 320), so as to increase the pressure of the wheel 320 and the contact surface. When the support structure 200 moves in the first direction a (releases the shelf), the tension spring 421 in the transmission structure 400 releases energy, so that the pressure applied by the tension spring 421 to the mounting seat 310 is reduced, and at this time, the mounting seat 310 can drive the wheel 320 to move in the second direction B, for example, so as to reduce the pressure of the wheel 320 and the contact surface.

According to an embodiment of the present disclosure, the vehicle structure further includes a spring 500, a first end of the spring 500 is connected with the vehicle body 100, and a second end is connected with the mount 310, so that the weight of the vehicle body 100 acts on the mount 310 through the spring 500.

In the disclosed embodiment, the spring 500 can be used, for example, to connect the vehicle body 100 with the mount 310. That is, the spring 500 can be used, for example, to store energy from a portion of the weight of the vehicle body 100 and apply the stored energy to the mount 310 to increase the pressure on the wheel 320 and other fixed wheels and contact surfaces in the vehicle.

According to an embodiment of the present disclosure, the vehicle body 100 includes: and a second slide rail structure 120, wherein the support structure 200 is connected to the second slide rail structure 120, and the support structure 200 can slide along the second slide rail structure 120 relative to the vehicle body 100.

The second slide rail structure 120 is, for example, a linear slide rail structure, and the second slide rail structure 120 is, for example, fixed to the vehicle body 100. The support structure 200 is connected to the second slide rail structure 120, for example, and the support structure 200 can move in the second slide rail structure 120 in the first direction a or the second direction B, thereby performing a function of lifting up the rack or releasing the rack.

For example, when the support structure 200 is moved in the second direction B, it means that the support structure 200 jacks up the rack, and when the support structure 200 is moved in the first direction a, it means that the support structure 200 releases the rack.

According to an embodiment of the present disclosure, the transmission structure 400 includes a first transmission structure 400a and a second transmission structure 400b, the first transmission structure 400a being connected with a first side of the support structure 200 and a first side of the wheel structure 300, and the second transmission structure 400b being connected with a second side of the support structure 200 and a second side of the wheel structure 300.

In the disclosed embodiment, each wheel structure 300 increases the pressure of the wheel structure 300 against the contact surface, for example, by two transmission structures 400. For example, the two transmission structures 400 include a first transmission structure 400a and a second transmission structure 400 b. The first transmission structure 400a is for example used to apply pressure to a first side of the wheel structure 300 and the second transmission structure 400b is for example used to apply pressure to a second side of the wheel structure 300.

For example, when the supporting structure 200 moves towards the second direction B, the first transmission structure 400a and the second transmission structure 400B can be pulled simultaneously, the first transmission structure 400a applies pressure to the first side of the wheel structure 300 towards the first direction a, and the second transmission structure 400B applies pressure to the second side of the wheel structure 300 towards the first direction a, so as to increase the pressure of the wheel structure 300 and the contact surface, and then increase the friction force between the wheel structure 300 and the contact surface, thereby avoiding the skid and the deflection of the vehicle.

It is understood that the transmission structure 400 of the disclosed embodiment may be a gear rack type mechanism in addition to the mechanism in the form of the tension spring 421, the pull rope 422, and the like. Where the transmission structure 400 is a rack and pinion type mechanism, the rack and pinion may be fixed to the support structure 200 and the pinion may be fixed to the vehicle body 100, and the rack and pinion may be engaged with each other. The torsion spring coaxially installed with the gear is, for example, connected with the wheel structure 300, when the supporting structure 200 moves towards the second direction B (jacks up the goods towards the second direction B), the supporting structure 200 drives the rack to move, the rack drives the gear engaged with the rack to rotate, the gear rotates to rotate the coaxially installed torsion spring, so that the elasticity of the torsion spring is increased, the elasticity applies the pressure of the first direction a to the wheel structure 300, and the pressure of the wheel structure 300 and the contact surface is increased.

The vehicle structure of the embodiment of the present disclosure converts the movement of the support structure 200 into the pressure applied to the wheel structure 300 through the transmission structure 400, thereby increasing the pressure of the wheel structure 300 and the contact surface. The pressure between the wheel structure 300 and the contact surface is increased under the condition that the self weight of the vehicle body 100 is not increased, and then the friction force between the wheel structure 300 and the contact surface is increased, so that the slipping and the deviation of the vehicle are avoided.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.