CN212797040U

CN212797040U - Transportation device capable of climbing stairs

Info

Publication number: CN212797040U
Application number: CN202021394983.9U
Authority: CN
Inventors: 黄立强
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-03-26
Anticipated expiration: 2030-07-15

Abstract

The utility model discloses a transportation device capable of climbing stairs, which comprises a box body and a plurality of lifting universal driving devices arranged on the box body, wherein the lifting universal driving devices are horizontally and slidably connected with the box body and comprise mounting seats and a supporting driving wheel which can vertically lift and horizontally rotate; the utility model provides a can climb conveyer of stair can replace the manpower to climb stair, has improved commodity circulation conveying efficiency, has saved the human cost, has improved user experience.

Description

Transportation device capable of climbing stairs

Technical Field

The utility model relates to a can climb conveyer of stair belongs to traffic commodity circulation transportation technical field.

Background

The development of the traffic logistics distribution industry is greatly promoted due to the shopping and catering requirements of modern people, the automation integration level of the modern traffic logistics industry is higher and higher, and the traffic logistics distribution industry is already in multiple links, such as: links such as delivery, letter sorting have realized the automation, but because the restriction of high-rise building's stair, modern logistics often faces the dilemma of "last kilometer", often need the manual work to go up stairs in last link and send goods to the home or let user oneself go downstairs and get a piece, and is inefficient, and the cost of labor is high and user experience is not good.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome not enough among the prior art, provide a conveyer that can climb stair, can replace the manpower to climb stair, improved commodity circulation conveying efficiency, saved the human cost, improved user experience.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a can climb conveyer of stair, its includes the box and sets up the universal drive arrangement of a plurality of lifts on the box, the universal drive arrangement of lift and the horizontal sliding connection of box, the universal drive arrangement of lift includes the mount pad and can vertical lift and level pivoted thrust wheel.

Further, be equipped with horizontal slide rail in the box, lift universal drive device is including can the card cover horizontal gliding horizontal sliding sleeve on horizontal slide rail, horizontal slide rail one side is equipped with rather than parallel horizontal rack, lift universal drive device still including can with horizontal rack meshing driven horizontal drive gear, horizontal drive gear is rotated by the drive of horizontal drive motor, horizontal sliding sleeve all sets up on the mount pad with horizontal drive motor.

Furthermore, two horizontal slide rails are respectively arranged on two sides of the box body, and each horizontal slide rail is connected with two lifting universal driving devices which are respectively arranged on two sides of the horizontal slide rail.

Further, the supporting driving wheel is connected with a vertical sliding rod, a vertical screw rod is arranged on the mounting seat, a vertical screw sleeve is connected to the vertical screw rod in a threaded mode, the vertical screw sleeve is connected with the vertical sliding rod through a switching seat, the vertical sliding rod is rotatably connected with the switching seat, a vertical driven gear is coaxially connected to the vertical screw rod, a vertical driving motor is arranged on the mounting seat and connected with a vertical driving gear, and the vertical driving gear can be in meshing transmission with the vertical driven gear.

Furthermore, a vertical sliding rail is arranged on the mounting seat, and a vertical sliding sleeve capable of being clamped and sleeved on the vertical sliding rail is arranged on the adapter.

Furthermore, the lifting universal driving device further comprises a rotating sleeve which is rotatably connected with the mounting seat, the vertical sliding rod is inserted into the rotating sleeve and is vertically and slidably connected with the rotating sleeve, the rotating sleeve is coaxially connected with a rotating driven gear, the mounting seat is provided with a rotary driving motor, the rotary driving motor is connected with a rotary driving gear, and the rotary driving gear can be in meshing transmission with the rotating driven gear.

Furthermore, a rotation limiting groove block is arranged on the vertical sliding rod along the axial direction, and the rotation limiting groove block can limit rotation between the vertical sliding rod and the rotating sleeve.

Further, the supporting weight driving wheel is driven to rotate by a hub motor, and the hub motor is arranged below the vertical sliding rod.

The stair climbing method of the transportation device capable of climbing stairs is characterized by comprising the following steps in sequence:

a step of disengaging from the ground;

repeating the step of climbing stairs;

a step of disengaging from the stairs;

after the step of separating the thrust driving wheels from the ground, all the thrust driving wheels are separated from the ground, and the bottom ends of the thrust driving wheels are propped against the stair layer;

when the thrust wheels are in the step of disengaging from the stairs, all the thrust driving wheels are positioned above the stair layer;

after the step of separating the thrust driving wheels from the stairs, all the thrust driving wheels are separated from the stair layer, and the bottom ends of the thrust driving wheels are propped against the top surface of the stairs;

at any moment, at least three supporting driving wheels are stressed to support the box body in a bearing way.

The stair climbing method of the transportation device capable of climbing stairs comprises the following steps of:

a1, moving the box body until the supporting weight driving wheel at the front side is close to the first-stage stairs;

a2, the supporting weight driving wheel at the back of the right side of the box body moves forwards to the middle position of the two supporting weight driving wheels at the left side;

a3, moving the supporting driving wheel in front of the right side of the box body to make the bottom end of the supporting driving wheel contact with the first stair surface,

a4, the supporting weight driving wheel at the back of the left side of the box body moves forwards until the supporting weight driving wheel moves to the middle position of the two supporting weight driving wheels at the right side,

a5, moving the supporting driving wheel at the front of the left side of the box body to make the bottom end of the supporting driving wheel contact with the second-level stair surface,

a6, moving the right rear thrust weight driving wheel to the first stair surface and making it in the middle of the left two thrust weight driving wheels,

a7, moving the front supporting driving wheel to make its bottom end against the third-stage stairs,

a8, move the left rear thrust roller onto the second level tread and center it between the right two thrust rollers.

b1, moving the front supporting weight driving wheel at the left side to move the stairs upwards and the bottom end of the stairs is pressed against the surface of the stairs,

b2, moving the supporting weight driving wheel at the rear of the right side to make the upper part move up and down two steps of stairs and the bottom end is propped against the stair surface of the step,

b3, moving the front supporting weight driving wheel at the right side to move the stairs upwards and the bottom end of the stairs is pressed against the surface of the stairs,

b4, moving the supporting weight driving wheel at the rear of the left side to make the upper part move up and down two steps of stairs and the bottom end is propped against the stair surface of the step,

b5, moving the front supporting weight driving wheel at the left side to move the stairs upwards and the bottom end of the stairs is pressed against the surface of the stairs,

and B2-B5 are repeated in sequence until the front supporting driving wheel moves to the bottom end to abut against the stair surface at one step from the top surface of the stair, and the two supporting driving wheels at the other side move to the bottom ends to abut against the stair surfaces at two steps from the top surface of the stair.

c1, moving the supporting weight driving wheel at the front of the other side of the supporting weight driving wheel at the front of the box body to make the bottom end of the supporting weight driving wheel support against the top surface of the stairs,

c2, moving the supporting driving wheel at the back of the other side to make the bottom end of the supporting driving wheel prop against the stair surface at one level away from the top of the stair,

c3, moving the supporting driving wheel at the front of the same side to make the bottom end of the supporting driving wheel prop against the top of the stairs,

c4, moving the back supporting driving wheel on the other side to make the bottom end of the driving wheel support the top of the stairs,

c5, moving the back supporting driving wheel on the other side to make its bottom end against the top of stairs.

According to the stair climbing method of the transportation device capable of climbing stairs, the box body correspondingly moves in the moving process of the supporting weight driving wheels, the gravity center vertical line of the box body always penetrates through a closed area formed by horizontal projection of the supporting weight driving wheels, and the bottom surface of the box body is always in a horizontal state.

Compared with the prior art, the utility model discloses the beneficial effect who reaches:

the technical scheme is provided with the plurality of supporting driving wheels driven by the hub motors, so that the driving structure is simplified, the volume and the weight of the driving structure are reduced, the space and lift utilization efficiency is improved, the use is more flexible and convenient, and the efficiency is higher;

in the technical scheme, at least three wheels are always arranged to support the box body in a shape of Chinese character 'pin' in the process of climbing stairs, so that the box body can be stably and reliably supported in the process of climbing stairs, and the use safety is ensured;

in the technical scheme, the linear motor is correspondingly adjusted in the process of climbing stairs, so that the bottom surface of the box body is always in a horizontal state, the stability of the box body in moving can be ensured, and the transportation of goods with flow characteristics is facilitated;

this technical scheme is at the in-process of climbing stair, and box horizontal position corresponds the regulation for the focus plumb line of box is in the bearing plane region of thrust drive wheel all the time, guarantees that the box can not the focus unbalance and turn on one's side at the in-process of climbing stair, guarantees stability in use and reliability.

Drawings

Fig. 1 is a schematic perspective view of a transportation device capable of climbing stairs according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of an interior of a transportation device capable of climbing stairs according to an embodiment of the present invention;

fig. 3 is a schematic side view of an internal structure of a transportation device capable of climbing stairs according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a first lifting universal driving device of a transportation device capable of climbing stairs according to an embodiment of the present invention;

fig. 5 is a schematic perspective view of a second lifting universal driving device of a transportation device capable of climbing stairs according to an embodiment of the present invention;

fig. 6 is a gear engagement diagram of a transportation device capable of climbing stairs according to an embodiment of the present invention.

Description of reference numerals: the device comprises a box body 1, a lifting universal driving device 2, a mounting seat 3, a supporting weight driving wheel 4, a horizontal sliding rail 5, a horizontal sliding sleeve 6, a horizontal rack 7, a horizontal driving gear 8, a horizontal driving motor 9, a vertical sliding rod 10, a vertical screw rod 11, a vertical screw sleeve 12, an adapter seat 13, a vertical driven gear 14, a vertical driving motor 15, a vertical driving gear 16, a vertical sliding rail 17, a vertical sliding sleeve 18, a rotating sleeve 19, a rotating driven gear 20, a rotating driving motor 21, a rotating driving gear 22, a rotating limiting groove block 23 and a hub motor 24.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The transportation device capable of climbing stairs as shown in the attached drawings comprises a box body 1 and a plurality of lifting universal driving devices 2 arranged on the box body, wherein the lifting universal driving devices are horizontally and slidably connected with the box body and comprise mounting seats 3 and supporting driving wheels 4 which can vertically lift and horizontally rotate;

the supporting driving wheel provides power drive for the whole device, can horizontally rotate, is suitable for various working conditions, is convenient to adjust the advancing direction, can vertically lift, and is convenient to adapt to climbing stairs and lifting box bodies;

the lifting universal driving device is horizontally connected with the box body in a sliding manner, so that when the supporting driving wheel is suspended, the horizontal sliding power can be provided for the supporting driving wheel, or when climbing stairs, the position of the box body can be adjusted by matching with the movement of the supporting driving wheel, and the stability of the gravity center of the whole device is ensured;

when the device works on a plane, the universal driving device is controlled to keep the vertical distances between all the supporting driving wheels and the box body consistent, and the proper distance between the supporting driving wheels is ensured;

when the device needs to climb a slope, the position and the vertical height of each thrust wheel can be adjusted according to the slope inclination, so that the horizontal stability of the box body is ensured;

when the device needs to climb stairs, each supporting driving wheel can be independently adjusted in multiple directions, the horizontal position and the vertical height of each supporting wheel are changed to adapt to the shape of the stairs, and the supporting box body climbs.

More specifically, in the embodiment, a horizontal sliding rail 5 is arranged in the box body, the lifting universal driving device comprises a horizontal sliding sleeve 6 which can be clamped and sleeved on the horizontal sliding rail to horizontally slide, a horizontal rack 7 which is parallel to the horizontal sliding rail is arranged on one side of the horizontal sliding rail, the lifting universal driving device further comprises a horizontal driving gear 8 which can be in meshing transmission with the horizontal rack, the horizontal driving gear is driven to rotate by a horizontal driving motor 9, and the horizontal sliding sleeve and the horizontal driving motor are both arranged on the mounting seat;

the sliding rail and the sliding sleeve can adopt the existing linear module, the installation and the disassembly are very convenient, and the cost is low; the gear and rack matching response is rapid, the adjustment is convenient, the structure is stable and reliable, and the use requirement of the technical scheme can be met.

More specifically, two horizontal slide rails are respectively arranged on two sides of the box body, and each horizontal slide rail is connected with two lifting universal driving devices and respectively arranged on two sides of the horizontal slide rail;

the lifting universal driving devices on the same side can ensure stable support of the box body, and the lifting universal driving devices on the same side can ensure the parallelism of the moving tracks of the two lifting universal driving devices on the same side by using the same slide rail, so that the utilization efficiency of parts can be improved, the structural redundancy is reduced, the space utilization efficiency and the integration level are improved, the power consumption caused by the weight of equipment is reduced, and the transportation efficiency is improved; two lifting universal driving devices on the same horizontal sliding rail are arranged on two sides of the lifting universal driving device, so that the lifting universal driving devices are favorable for arrangement of all parts, are convenient to install and are favorable for stress balance of the horizontal sliding rail.

More specifically, the supporting driving wheel is connected with a vertical sliding rod 10, a vertical screw rod 11 is arranged on the mounting seat, a vertical screw sleeve 12 is in threaded connection with the vertical screw rod, the vertical screw sleeve is connected with the vertical sliding rod through an adapter 13, the vertical sliding rod is in rotary connection with the adapter, a vertical driven gear 14 is coaxially connected with the vertical screw rod, a vertical driving motor 15 is arranged on the mounting seat, the vertical driving motor is connected with a vertical driving gear 16, and the vertical driving gear can be in meshing transmission with the vertical driven gear;

the screw thread sleeve is a conventional linear module, has a compact structure, is quick in response and accurate in adjustment, and can meet the requirement for vertical adjustment of the thrust driving wheel required by the technical scheme; the threaded sleeve drives the sliding rod to lift, so that the supporting driving wheel can lift, and the displacement requirement required by climbing stairs is met.

More specifically, a vertical sliding rail 17 is arranged on the mounting seat, and a vertical sliding sleeve 18 which can be clamped and sleeved on the vertical sliding rail to slide is arranged on the adapter;

the slide rail sliding sleeve provides the guide effect, ensures that the adapter can not rotate round the screw rod when being driven by the screw rod and removing, ensures job stabilization nature.

In one embodiment, the lifting universal driving device further comprises a rotating sleeve 19 which is rotatably connected with the mounting seat, a vertical sliding rod is inserted into the rotating sleeve and is vertically and slidably connected with the rotating sleeve, the rotating sleeve is coaxially connected with a rotating driven gear 20, the mounting seat is provided with a rotating driving motor 21, the rotating driving motor is connected with a rotating driving gear 22, and the rotating driving gear can be in meshing transmission with the rotating driven gear;

the rotating sleeve is connected with the mounting seat in a rotating mode and can be connected with the vertical sliding rod in a vertical sliding mode, the rotating sleeve and the vertical sliding rod can only vertically slide relative to each other but cannot rotate relative to each other, and the rotating driving motor drives the rotating sleeve to rotate, so that the supporting driving wheel can be driven to rotate and adjust the direction;

the rotary driving motor, the vertical driving motor and the horizontal driving motor are all installed on the installation seat, so that the whole structure is more compact, the occupied space is smaller, the installation is more convenient, and the use is safer and more stable.

More specifically, the vertical slide bar is provided with a rotation limiting groove block 23 along the axial direction, and the rotation limiting groove block can limit the rotation between the vertical slide bar and the rotating sleeve.

In order to limit the relative rotation between the vertical sliding rod and the rotating sleeve, a rotating limiting groove block is arranged, similar to a flat key structure, and a groove matched with the rotating sleeve in shape is arranged on the inner ring of the rotating sleeve and used for clamping the rotating limiting groove block.

Specifically, the supporting driving wheel is driven to rotate by a hub motor 24, and the hub motor is arranged below the vertical sliding rod;

the hub motor has a compact structure, saves a large number of transmission and braking components, reduces the volume and weight of equipment, and is suitable for the use scene of the technical scheme.

The stair climbing method of the transportation device capable of climbing stairs comprises the following steps in sequence:

a step of disengaging from the ground;

repeating the step of climbing stairs;

a step of disengaging from the stairs;

when the supporting driving wheels are in the step of disengaging from the stairs, all the supporting driving wheels are positioned above the stair layer;

at any moment, at least three supporting driving wheels bear the force to support the box body in a bearing way;

the device of the technical scheme has four thrust driving wheels, and at least three thrust driving wheels are needed to carry out bearing support on the box body at any moment in order to ensure the support stability;

when need climb stair, change the position and the height of a thrust drive wheel at every turn, remaining three thrust drive wheel is "article" style of calligraphy and carries out the bearing to the box and support, through the position and the height of change thrust wheel that do not stop for the shape, the position and the height of "article" style of calligraphy change, the antedisplacement that rises gradually along stair, thereby accomplish the stair climbing process of whole device.

Wherein, the step of separating from the ground comprises the following steps of:

a8, moving the left rear thrust weight driving wheel to the second-level stair surface and enabling the left rear thrust weight driving wheel to be in the middle position of the two right thrust weight driving wheels;

the supporting driving wheels on two sides move alternately to cross a higher stair in front, and before the supporting driving wheel on each side needs to cross the stair, the other supporting driving wheel on the same side needs to move to a position between the two supporting driving wheels on the other side, so that when the supporting driving wheels cross the stair, the other three supporting driving wheels form a stable structure in a shape like a Chinese character 'pin' to support the box body, and the stable movement is ensured;

the horizontal movement of the supporting driving wheel under the bearing and stress state can be driven by a wheel hub motor, the horizontal movement of the supporting driving wheel under the suspended and non-bearing state can be driven by a horizontal driving motor, and the vertical lifting of the supporting driving wheel or the box body is driven by a vertical driving motor;

when a certain heavy driving wheel moves to the front stair surface, namely the heavy driving wheel carries out cross-level operation, the specific process is as follows:

the vertical driving motor drives the supporting driving wheel to vertically ascend to enable the bottom end of the supporting driving wheel to be not lower than the height of a target stair layer to be strided, the horizontal driving motor drives the supporting driving wheel to move to the position right above the target stair layer to be strided, and the vertical driving motor drives the supporting driving wheel to vertically descend until the bottom end of the supporting driving wheel abuts against and contacts the upper surface of the target stair layer to be strided.

Wherein, the above-mentioned step of repeatedly climbing the stair includes the following step of going on in proper order:

B2-B5 steps are repeated in sequence until the foremost supporting driving wheel moves to the position that the bottom end of the supporting driving wheel abuts against the stair surface at one level away from the top surface of the stair, and the two supporting driving wheels at the other side move to the positions that the bottom ends of the two supporting driving wheels abut against the stair surfaces at two levels away from the top surface of the stair;

after the previous step is processed by step B1, the four supporting driving wheels are respectively positioned on different stair layers,

and then the two supporting weight driving wheels on the same side are alternately supported and alternately climb, the two supporting weight driving wheels on each side alternately climb and then alternately climb the supporting weight driving wheel on the other side, namely B2-B5 steps, the four supporting weight driving wheels all climb in a cross-level manner, can be used as a motion cycle and repeatedly act, and can ensure that at least three supporting weight driving wheels always support the box body in each cycle, thereby ensuring the stability when climbing stairs.

Finally, the step of disengaging from the staircase comprises the following steps carried out in sequence:

c5, moving the supporting driving wheel at the back of the other side to make the bottom end of the supporting driving wheel support against the top surface of the stairs;

the "same side" or "the other side" in each step is designated with reference to the bogie drive wheel that was moved in the previous step,

the stair top surface can be the highest plane of one section of continuous stair, or the connecting plane between two sections of stairs in different directions, or the connecting plane between two sections of stairs in the same direction, after all the supporting driving wheels of the device move to the stair top surface, the horizontal direction of the supporting driving wheels can be adjusted by rotating the driving motor according to the actual road condition, and then the horizontal movement is carried out or the stair climbing is carried out according to the method.

According to the method for climbing the stairs of the transportation device capable of climbing the stairs, the box body correspondingly moves in the moving process of the supporting weight driving wheels, the gravity center plumb line of the box body is ensured to always penetrate through a closed area formed by the horizontal projection of the supporting weight driving wheels, and the bottom surface of the box body is always in a horizontal state;

in the moving process of the supporting driving wheel, in order to ensure that the gravity center of the box body is always positioned in a bearing area formed by the bearing supporting driving wheels, the horizontal driving motor can adjust the relative position of each supporting driving wheel and the box body in real time according to the position of the supporting driving wheel; the vertical driving motor can also adjust the height of each supporting weight driving wheel according to the requirement that the supporting weight driving wheel climbs the stairs, so that the box body is always in a horizontal position, and the vertical driving motor is more stable in use, convenient and reliable.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a conveyer that can climb stair which characterized in that: including box (1) and a plurality of universal drive arrangement (2) of going up and down of setting on the box, universal drive arrangement and the horizontal sliding connection of box go up and down, universal drive arrangement goes up and down includes mount pad (3) and can vertical lift and horizontal pivoted thrust drive wheel (4).

2. A transportation device capable of climbing stairs according to claim 1, wherein: be equipped with horizontal slide rail (5) in the box, lift universal drive device is including horizontal gliding horizontal sliding sleeve (6) on horizontal slide rail that can the card cover, horizontal slide rail one side is equipped with horizontal rack (7) rather than being parallel, lift universal drive device still including can with horizontal rack meshing driven horizontal drive gear (8), horizontal drive gear is rotated by horizontal driving motor (9) drive, horizontal sliding sleeve all sets up on the mount pad with horizontal driving motor.

3. A transportation device capable of climbing stairs according to claim 1, wherein: two sides of the box body are respectively provided with a horizontal slide rail, and each horizontal slide rail is connected with two lifting universal driving devices which are respectively arranged on two sides of the horizontal slide rail.

4. A transportation device capable of climbing stairs according to claim 1, wherein: the supporting weight driving wheel is connected with a vertical sliding rod (10), a vertical screw rod (11) is arranged on the mounting seat, a vertical screw sleeve (12) is connected to the vertical screw rod in a threaded mode, the vertical screw sleeve is connected with the vertical sliding rod through a transfer seat (13), the vertical sliding rod is connected with the transfer seat in a rotating mode, a vertical driven gear (14) is coaxially connected to the vertical screw rod, a vertical driving motor (15) is arranged on the mounting seat, the vertical driving motor is connected with a vertical driving gear (16), and the vertical driving gear can be in meshing transmission with the vertical driven gear.

5. A transportation device capable of climbing stairs according to claim 4, wherein: the mounting seat is provided with a vertical sliding rail (17), and the adapter is provided with a vertical sliding sleeve (18) which can be clamped and sleeved on the vertical sliding rail to slide.

6. A transportation device capable of climbing stairs according to claim 4, wherein: the lifting universal driving device further comprises a rotating sleeve (19) rotatably connected with the mounting seat, the vertical sliding rod is inserted into the rotating sleeve and is vertically and slidably connected with the rotating sleeve, the rotating sleeve is coaxially connected with a rotating driven gear (20), the mounting seat is provided with a rotary driving motor (21), the rotary driving motor is connected with a rotary driving gear (22), and the rotary driving gear can be in meshing transmission with the rotating driven gear.

7. A transportation device capable of climbing stairs according to claim 6, wherein: the vertical sliding rod is provided with a rotation limiting groove block (23) along the axial direction, and the rotation limiting groove block can limit the rotation between the vertical sliding rod and the rotating sleeve.

8. A transportation device capable of climbing stairs according to claim 1, wherein: the thrust driving wheel is driven to rotate by a hub motor (24), and the hub motor is arranged below the vertical sliding rod.