A delivery robot

Abstract

Embodiments of the present invention relate to the technical field of robots, and in particular disclose a delivery robot, comprising a fuselage frame; a driving wheel assembly, the driving assembly includes a first suspension mechanism and a driving wheel, and the driving wheel is connected to the fuselage frame through the first suspension mechanism; a driven wheel assembly, the driven wheel assembly includes a second suspension mechanism and a driven wheel, and the driven wheel is connected to the fuselage frame through the second suspension mechanism; an adjusting device, which is arranged on the fuselage frame, and the adjusting device is respectively connected to the first suspension mechanism and the second suspension mechanism, and the adjusting device can adjust the wheelbase between the driving wheel and the driven wheel. By the above method, the embodiments of the present invention can improve the ability of the delivery robot to pass obstacles.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of robots, and in particular, to a delivery robot. Background Art

[0002] A robot is a machine device that automatically performs work. It can accept human commands, run pre-programmed programs, or act according to principles and guidelines formulated by artificial intelligence technology. Its task is to assist or replace human work. Among them, a delivery robot is a mechanical device mainly used for delivering goods.

[0003] In the process of implementing the present invention, the inventors of the present invention found that: during the delivery process of a delivery robot, when traveling in a narrow corridor, the front and rear wheelbases of existing delivery robots are usually fixed, and the steering flexibility of the delivery robot is restricted, which is rather inconvenient. Summary of the Invention

[0004] In view of the above problems, the embodiments of the present invention provide a delivery robot that overcomes or at least partially solves the above problems.

[0005] According to one aspect of the present invention, there is provided a delivery robot, including: a fuselage frame; a driving wheel assembly, the driving assembly including a first suspension mechanism and a driving wheel, the driving wheel being connected to the fuselage frame through the first suspension mechanism; a driven wheel assembly, the driven wheel assembly including a second suspension mechanism and a driven wheel, the driven wheel being connected to the fuselage frame through the second suspension mechanism; an adjusting device, disposed on the fuselage frame, and the adjusting device is respectively connected to the first suspension mechanism and the second suspension mechanism, and the adjusting device can adjust the wheelbase between the driving wheel and the driven wheel.

[0006] In an optional manner, the first suspension mechanism includes a first connecting member, one end of the first connecting member is rotatably connected to the fuselage frame, and the driving wheel is connected to the other end of the first connecting member; the second suspension mechanism includes a second connecting member, one end of the second connecting member is rotatably connected to the fuselage frame, and the driven wheel is connected to the other end of the second connecting member; the adjusting device includes a driving device, an adjusting component, a first connecting rod and a second connecting rod, one end of the first connecting rod is rotatably connected to the first connecting member, one end of the second connecting rod is rotatably connected to the second connecting member, the other end of the first connecting rod and the other end of the second connecting rod are respectively hinged to the adjusting component, the driving device is installed on the fuselage frame, the driving device is connected to the adjusting component, and the driving device is used to drive the adjusting component to adjust the included angle between the first connecting rod and the second connecting rod.

[0007] In an alternative manner, the adjustment assembly includes a first slide rail and a first slider. The first slide rail is fixed to the body frame, and the first slider is mounted on the first slide rail. The driving device is connected to the first slider and is configured to drive the first slider to slide along the first slide rail. The other end of the second link is fixed to the first slider. When the first slider slides along the first slide rail to a first position, the distance between the driving wheel and the driven wheel is a first distance. When the first slider slides along the first slide rail to a second position, the distance between the driving wheel and the driven wheel is a second distance.

[0008] In an alternative manner, the delivery robot further includes a driving assembly. The driving assembly includes a driving rod, a second slide rail, and a second slider. The second slide rail is mounted on the body frame, and the second slider is mounted on the second slide rail. The second slider is slidable along the second slide rail. One end of the driving rod is connected to the second slider, and the other end of the driving rod is connected to the first slider. The driving device is connected to the second slider and drives the second slider to slide along the second slide rail. The sliding second slider drives the first slider to slide along the first slide rail.

[0009] In an alternative manner, the sliding speed of the first slider along the first slide rail is the same as the sliding speed of the second slider along the second slide rail.

[0010] In an alternative manner, the number of the adjustment assemblies is two. The two adjustment assemblies are symmetrically arranged with respect to the body frame. The driving rod includes a first driving portion, a connecting portion, and a second driving portion. The first driving portion and the second driving portion are respectively connected to two ends of the connecting portion. The driving rod is U-shaped. The connecting portion is connected to the second slider. The first driving portion is connected to the first slider of one adjustment assembly, and the second driving portion is connected to the first slider of the other adjustment assembly.

[0011] In an alternative manner, the first suspension mechanism includes a third connecting member and a first shock absorber. One end of the third connecting member is rotatably connected to the other end of the first connecting member. The driving wheel is rotatably connected to the other end of the third connecting member. One end of the first shock absorber is connected to the first connecting member, and the other end of the first shock absorber is connected to the third connecting member. The first connecting member, the third connecting member, and the first shock absorber are arranged in a triangular shape.

[0012] In an alternative manner, the second suspension mechanism includes a fourth connecting member and a second shock absorber. One end of the fourth connecting member is rotatably connected to the other end of the second connecting member, the driven wheel is rotatably connected to the other end of the fourth connecting member, one end of the second shock absorber is connected to the second connecting member, and the other end of the second shock absorber is connected to the fourth connecting member. The second connecting member, the fourth connecting member, and the second shock absorber are arranged in a triangle.

[0013] In an alternative manner, the driven wheel is an omnidirectional wheel.

[0014] In an alternative manner, the driven wheel includes a first wheel body, a second wheel body, and a wheel frame. The first wheel body and the second wheel body are both sleeved on the wheel frame. The first wheel body and the second wheel body can rotate relative to the wheel frame, and the radial dimension of the first wheel body is greater than the radial dimension of the second wheel body. When the chassis is in linear motion, both the first wheel body and the second wheel body rotate around the first central axis. When the chassis is in a steering motion state, while the first wheel body and the second wheel body rotate around the first central axis, the first wheel body rotates around the second central axis, and the second wheel body rotates around the third central axis.

[0015] The beneficial effects of the embodiments of the present invention are as follows: Different from the prior art, the embodiments of the present invention are provided with a body frame, a driving wheel assembly, a driven wheel assembly, and an adjusting device. Among them, the driving assembly includes a first suspension mechanism and a driving wheel. The driving wheel is connected to the body frame through the first suspension mechanism. The driven wheel assembly includes a second suspension mechanism and a driven wheel. The driven wheel is connected to the body frame through the second suspension mechanism. The adjusting device is arranged on the body frame and is respectively connected to the first suspension mechanism and the second suspension mechanism. The adjusting device can adjust the wheelbase between the driving wheel and the driven wheel. When the delivery robot is delivering goods and enters a narrow space, in order to facilitate the steering of the delivery robot, the adjusting device can reduce the wheelbase between the driving wheel and the driven wheel. When entering an open space, the adjusting device can increase the wheelbase between the driving wheel and the driven wheel. In addition, by adjusting the wheelbase between the driving wheel and the driven wheel through the adjusting device, the height of the body frame relative to the ground can also be adjusted. When encountering an obstacle, the adjusting device on the delivery robot raises the height of the body frame relative to the ground, and the height between the body frame and the ground increases, which is convenient for the delivery robot to pass through the obstacle. When the delivery robot is in a normal driving state, the height of the body frame relative to the ground can be reduced through the adjusting device, the height between the body frame and the ground decreases, and the center of gravity of the body frame is lowered, thereby improving the motion stability of the delivery robot. Brief Description of the Drawings

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. In all the drawings, similar elements or parts are generally denoted by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to actual scale.

[0017] Figure 1 is a partial structural schematic diagram of the delivery robot according to an embodiment of the present invention;

[0018] Figure 2 is another perspective schematic diagram of the partial structure of the delivery robot according to an embodiment of the present invention;

[0019] Figure 3 is a side schematic diagram of the partial structure of the delivery robot according to an embodiment of the present invention;

[0020] Figure 4 is another marked schematic diagram of the partial structure of the delivery robot according to an embodiment of the present invention. Detailed Description of the Embodiments

[0021] For the convenience of understanding the present invention, the following will further describe the present invention in more detail in conjunction with the drawings and specific embodiments. It should be noted that when an element is expressed as "fixed to" another element, it can be directly on the other element, or there can be one or more intermediate elements therebetween. When an element is expressed as "connected to" another element, it can be directly connected to the other element, or there can be one or more intermediate elements therebetween. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are only for the purpose of illustration.

[0022] Unless otherwise defined, all the technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in this specification in the description of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this specification includes any and all combinations of one or more of the related listed items.

[0023] In addition, the technical features involved in different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0024] Please refer to Figure 1, the delivery robot 1000 includes a body frame 10, a driving wheel assembly 20, a driven wheel assembly 30, an adjusting device 40, and a driving assembly 50. Among them, the driving wheel assembly 20, the driven wheel assembly 30, and the adjusting device 40 are all arranged on the body frame 10. The adjusting device 40 is connected to the driving wheel assembly 20 and the driven wheel assembly 30. The adjusting device 40 can adjust the height of the body frame 10 relative to the ground. The driving assembly 50 is arranged on the body frame 10, and the driving assembly 50 is connected to the adjusting device 40. The following specifically describes the body frame 10, the driving wheel assembly 20, the driven wheel assembly 30, the adjusting device 40, and the driving assembly 50.

[0025] For the above body frame 10, as Figure 1 and Figure 2 shown, the body frame 10 includes a housing (not shown in the figure) and a bracket 101. The housing covers the bracket 101. The bracket 101 is formed by connecting multiple connecting rods. The bracket 101 is generally rectangular, and the connection method between the multiple connecting rods can be screw connection, riveting, or welding. Optionally, the manufacturing material of the bracket 101 is aluminum alloy.

[0026] For the above driving wheel assembly 20, as Figure 1 and Figure 2 shown, the driving wheel assembly 20 includes a first suspension mechanism 201 and a driving wheel 202. The driving wheel 202 is connected to the body frame 10 through the first suspension mechanism 201. The two driving wheels 202 are respectively installed on two opposite sides of the body frame 10. The driving wheel 202 can drive the delivery robot to move in a preset direction. Optionally, the driving wheel assembly 20 includes a hub motor, and the hub motor is arranged on the driving wheel 202. The hub motor can drive the driving wheel 202 to rotate.

[0027] In some embodiments, the first suspension mechanism 201 includes a first connecting member 2011, a third connecting member 2012, and a first shock absorber 2013. One end of the first connecting member 2011 is rotatably connected to the fuselage frame 10. One end of the third connecting member 2012 is rotatably connected to the other end of the first connecting member 2011. The driving wheel 202 is rotatably connected to the other end of the third connecting member 2012. One end of the first shock absorber 2013 is connected to the first connecting member 2011, and the other end of the first shock absorber 2013 is connected to the third connecting member 2012. The first connecting member 2011, the third connecting member 2012, and the first shock absorber 2013 are arranged in a triangle. The triangular arrangement can make the first connecting member 2011, the third connecting member 2012, and the first shock absorber 2013 more stable during movement. Among them, when there are obstacles or stones on the ground, the driving wheel 202 can use the first shock absorber 2013 to play a buffering role, thereby reducing the bumps of the delivery robot and reducing the collision damage of the goods. It can be understood that in some embodiments, the first suspension mechanism 201 only includes the first connecting member 2011, and the driving wheel 202 is directly installed on the first connecting member 2011. At this time, the number of components is reduced, the cost is saved, and the purpose of driving the delivery robot to move can also be achieved.

[0028] For the above-mentioned driven wheel assembly 30, as Figure 1 and Figure 2 shown, the driven wheel assembly 30 includes a second suspension mechanism 301 and a driven wheel 302. The driven wheel 302 is connected to the fuselage frame 10 through the second suspension mechanism 301. The two driven wheels 302 are respectively installed on two opposite sides of the fuselage frame 10. The driven wheel 302 rolls in a preset direction under the drive of the driving wheel 202. Optionally, the two driven wheels 302 are omnidirectional wheels.

[0029] In some embodiments, the second suspension mechanism 301 includes a second connecting member 3011, a fourth connecting member 3012, and a second shock absorber 3013. One end of the second connecting member 3011 is rotatably connected to the fuselage frame 10. One end of the fourth connecting member 3012 is rotatably connected to the other end of the second connecting member 3011. The driven wheel 302 is rotatably connected to the other end of the fourth connecting member 3012. One end of the second shock absorber 3013 is connected to the second connecting member 3011, and the other end of the second shock absorber 3013 is connected to the fourth connecting member 3012. The second connecting member 3011, the fourth connecting member 3012, and the second shock absorber 3013 are arranged in a triangle. The triangular arrangement can make the second connecting member 3011, the fourth connecting member 3012, and the second shock absorber 3013 more stable during movement. Among them, when there are obstacles or stones on the ground, the driven wheel 302 can use the second shock absorber 3013 to play a buffering role, thereby reducing the bumps of the delivery robot and reducing the collision damage of the goods. It can be understood that: in some embodiments, the second suspension mechanism 301 only includes the second connecting member 3011, and the driven wheel 302 is directly installed on the second connecting member 3011. At this time, the number of components is reduced, the cost is saved, and the purpose of driving the delivery robot to move can also be achieved.

[0030] In some embodiments, the driven wheel 302 includes a first wheel body 3021, a second wheel body 3022, and a wheel frame 3023. The first wheel body 3021 and the second wheel body 3022 are both sleeved on the wheel frame 3023. The first wheel body 3021 and the second wheel body 3022 can both rotate relative to the wheel frame 3023, and the radial dimension of the first wheel body 3021 is greater than the radial dimension of the second wheel body 3022. Among them, when the delivery robot 1000 is in a straight-line motion, the first wheel body 3021 and the second wheel body 3022 both revolve around the first central axis to complete the straight-line motion. When the delivery robot 1000 is in a turning motion state, while the first wheel body 3021 and the second wheel body 3022 revolve around the first central axis, the first wheel body 3021 rotates around the second central axis, and the second wheel body 3022 rotates around the third central axis. Through the revolution and rotation of the first wheel body 3021 and the second wheel body 3022, the two-axis motion in the horizontal direction of the driven wheel 302 can be used to realize the turning motion of the delivery robot 1000.

[0031] In some embodiments, when the delivery robot 1000 is in a straight-line motion, the first wheel body 3021 and the second wheel body 3022 both rotate synchronously with the wheel frame 3023, and the axis of the wheel frame 3023 is the first central axis.

[0032] For the above-mentioned adjusting device 40 and driving assembly 50, as Figure 2 and Figure 3 shown, the adjusting device 40 is arranged on the fuselage frame 10. The adjusting device 40 is connected to the first suspension mechanism 201 and the second suspension mechanism 301. The adjusting device 40 can be used to adjust the height of the fuselage frame 10 relative to the ground. The adjusting device 40 can drive the first suspension mechanism 201 and the second suspension mechanism 301 to rotate relative to the fuselage frame 10. The first suspension mechanism 201 drives the driving wheel 202 to rotate relative to the fuselage frame 10, and the second suspension mechanism 301 drives the driven wheel 302 to rotate relative to the fuselage frame 10, so as to realize the adjustment of the height of the fuselage frame 10 relative to the ground.

[0033] Specifically, the adjusting device 40 includes a driving device (driving motor), an adjusting component 401, a first connecting rod 402 and a second connecting rod 403. One end of the first connecting rod 402 is rotatably connected to the first connecting member 2011, and one end of the second connecting rod 403 is rotatably connected to the second connecting member 3011. The other ends of the first connecting rod and the second connecting rod are respectively hinged to the adjusting component 401. The driving device is installed on the fuselage frame 10, and the driving device is connected to the adjusting component 401. The driving device drives the adjusting component 401 to adjust the included angle between the first connecting rod 402 and the second connecting rod 403. Since the first connecting rod 402 and the second connecting rod 403 can rotate relative to each other, when the driving device applies a force F in the vertical direction / ground direction between the joints of the first connecting rod 402 and the second connecting rod 403, the included angle between the first connecting rod 402 and the second connecting rod 403 can be adjusted. Under the action of this force F, the included angle between the first connecting rod 402 and the second connecting rod 403 changes, and correspondingly, the spacing distance between the driving wheel 202 and the driven wheel 302 also changes.

[0034] It should be noted that when the included angle between the first link 402 and the second link 403 is an acute angle, under the action of a force F applied by the driving device in the vertical direction, the first link 402 and the second link 403 rotate relative to each other, and the included angle between them gradually increases to become an obtuse angle or a straight angle. The relatively rotating first link 402 pushes the first connecting member 2011 to rotate counterclockwise by a preset angle, and the relatively rotating second link 403 pushes the second connecting member 3011 to rotate clockwise by a preset angle, so that the fuselage frame 10 approaches a preset distance relative to the ground; on the contrary, when the included angle between the first link 402 and the second link 403 is an obtuse angle or a straight angle, under the action of a force F applied by the driving device in the direction towards the ground, the first link 402 and the second link 403 rotate relative to each other, and the included angle between them gradually decreases to become a right angle or an acute angle. The relatively rotating first link 402 pushes the first connecting member 2011 to rotate clockwise by a preset angle, and the relatively rotating second link 403 pushes the second connecting member 3011 to rotate counterclockwise by a preset angle, so that the fuselage frame 10 moves away from the preset distance relative to the ground. Optionally, when the included angle between the first link 402 and the second link 403 is a straight angle (180 degrees), the first connecting member 2011 rotates counterclockwise to the maximum angle, and the second connecting member 3011 rotates clockwise to the maximum angle. At this time, the adjustable distance between the fuselage frame 10 and the ground is the smallest.

[0035] In some embodiments, the adjusting assembly 401 includes a first slide rail 4012 and a first slider 4013. The first slide rail 4012 is fixed to the fuselage frame 10, the first slider 4013 is installed on the first slide rail 4012, and the first slider 4013 can slide along the first slide rail 4012. The driving assembly 50 is disposed on the fuselage frame 10, the driving assembly 50 is connected to the first slider 4013, and the driving assembly 50 is used to drive the first slider 4013 to slide along the first slide rail 4012. The other end of the second link 403 is fixed to the first slider 4013. When the first slider 4013 slides along the first slide rail 4012 to the first position, the distance between the driving wheel 202 and the driven wheel 302 is the first distance. When the first slider 4013 slides along the first slide rail 4012 to the second position, the distance between the driving wheel 202 and the driven wheel 302 is the second distance. The driving assembly 50 drives the first link 402 and the second link 403 to slide along the first slide rail 4012, so as to realize the adjustment of the included angle between the first link 402 and the second link 403.

[0036] In some embodiments, please refer to Figure 4, the driving assembly 50 includes a driving rod 501, a second slide rail 502 and a second slider 503. The second slide rail 502 is installed on the body frame 10, the second slider 503 is installed on the second slide rail 502, the second slider 503 can slide along the second slide rail 502, one end of the driving rod 501 is connected to the second slider 503, and the other end of the driving rod 501 is connected to the first slider 4013. The second slider 503 slides along the second slide rail 502, so that the driving rod 501 drives the first slider 4013 to slide along the first slide rail 4012, thereby realizing the adjustment of the included angle between the first connecting rod 402 and the second connecting rod 403. Optionally, the sliding speed of the second slider 503 along the second slide rail 502 is the same as the sliding speed of the first slider 4013 along the first slide rail 4012.

[0037] In some embodiments, the number of the adjusting assemblies 401 is two, the two adjusting assemblies 401 are symmetrically arranged with respect to the body frame 10. The driving rod 501 includes a first driving part (not labeled), a connecting part (not labeled) and a second driving part (not labeled). The first driving part and the second driving part are respectively connected to two ends of the connecting part. The driving rod 501 is U-shaped. The connecting part is connected to the second slider 503, the first driving part is connected to the first slider 4013 of one adjusting assembly 401, and the second driving part is connected to the first slider 4013 of the other adjusting assembly 401. The driving rod 501 is used to control the two adjusting assemblies 401 simultaneously to control the distance between the driving wheels 202 and the driven wheels 302 on different sides of the delivery robot.

[0038] In an embodiment of the present invention, a body frame 10, a driving wheel assembly 20, a driven wheel assembly 30, and an adjusting device 40 are provided. Among them, the driving assembly 50 includes a first suspension mechanism 201 and driving wheels 202. The two driving wheels 202 are connected to the body frame 10 through the first suspension mechanism 201. The driven wheel assembly 30 includes a second suspension mechanism 301 and driven wheels 302. The two driven wheels 302 are connected to the body frame 10 through the second suspension mechanism 301. The adjusting device 40 is disposed on the body frame 10, and the adjusting device 40 is connected to the first suspension mechanism 201 and the second suspension mechanism 301. The adjusting device 40 is used to adjust the height of the body frame 10 relative to the ground. When the delivery robot 1000 enters a narrow space during the process of delivering goods, in order to facilitate the turning of the delivery robot 1000, the wheelbase between the driving wheels 202 and the driven wheels 302 can be reduced through the adjusting device 40. When entering an open space, the wheelbase between the driving wheels 202 and the driven wheels 302 can be increased through the adjusting device 40. In addition, by adjusting the wheelbase between the driving wheels 202 and the driven wheels 302 through the adjusting device 40, the height of the body frame 10 relative to the ground can also be adjusted. When encountering an obstacle, the adjusting device 40 on the delivery robot 1000 raises the height of the body frame 10 relative to the ground, and the height between the body frame 10 and the ground increases, facilitating the delivery robot 1000 to pass over the obstacle. When the delivery robot 1000 is in a normal driving state, the height of the body frame 10 relative to the ground can be reduced through the adjusting device 40, the height between the body frame 10 and the ground decreases, and the center of gravity of the body frame 10 is lowered, thereby improving the movement stability of the delivery robot 1000.

[0039] The above are only embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. A distribution robot, characterized in that, comprising: a fuselage frame; a driving wheel assembly, the driving wheel assembly comprising a first suspension mechanism and a driving wheel, the driving wheel being connected to the fuselage frame through the first suspension mechanism; a driven wheel assembly, the driven wheel assembly comprising a second suspension mechanism and a driven wheel, the driven wheel being connected to the fuselage frame through the second suspension mechanism; an adjusting device disposed on the fuselage frame, the adjusting device being respectively connected to the first suspension mechanism and the second suspension mechanism, the adjusting device being capable of adjusting the wheelbase between the driving wheel and the driven wheel; the first suspension mechanism includes a first connecting member, one end of the first connecting member being rotatably connected to the fuselage frame, and the driving wheel being connected to the other end of the first connecting member; the second suspension mechanism includes a second connecting member, one end of the second connecting member being rotatably connected to the fuselage frame, and the driven wheel being connected to the other end of the second connecting member; the adjusting device includes a driving device, an adjusting assembly, a first connecting rod and a second connecting rod, one end of the first connecting rod being rotatably connected to the first connecting member, one end of the second connecting rod being rotatably connected to the second connecting member, the other end of the first connecting rod and the other end of the second connecting rod being respectively hinged to the adjusting assembly, the driving device being mounted on the fuselage frame, the driving device being connected to the adjusting assembly, the driving device being used for driving the adjusting assembly to adjust the included angle between the first connecting rod and the second connecting rod; the adjusting assembly includes a first slide rail and a first slider, the first slide rail being fixed to the fuselage frame, the first slider being mounted on the first slide rail, the driving device being connected to the first slider for driving the first slider to slide along the first slide rail, the other end of the second connecting rod being fixed to the first slider, when the first slider slides along the first slide rail to a first position, the distance between the driving wheel and the driven wheel is a first distance, and when the first slider slides along the first slide rail to a second position, the distance between the driving wheel and the driven wheel is a second distance; the distribution robot further includes a driving assembly, the driving assembly including a driving rod, a second slide rail and a second slider, the second slide rail being mounted on the fuselage frame, the second slider being mounted on the second slide rail, the second slider being capable of sliding along the second slide rail, one end of the driving rod being connected to the second slider, the other end of the driving rod being connected to the first slider, the driving device being connected to the second slider and driving the second slider to slide along the second slide rail, and the sliding second slider driving the first slider to slide along the first slide rail; the driven wheel is an omnidirectional wheel.

2. The distribution robot according to claim 1, characterized in that, the sliding speed of the first slider along the first slide rail is the same as the sliding speed of the second slider along the second slide rail.

3. The distribution robot according to claim 1, characterized in that, The number of the adjusting components is two, and the two adjusting components are symmetrically arranged with respect to the body frame. The driving rod includes a first driving part, a connecting part, and a second driving part. The first driving part and the second driving part are respectively connected to two ends of the connecting part. The driving rod is U-shaped. The connecting part is connected to the second slider. The first driving part is connected to the first slider of one of the adjusting components, and the second driving part is connected to the first slider of the other adjusting component.

4. The delivery robot according to claim 1, wherein, the first suspension mechanism includes a third connecting member and a first shock absorber. One end of the third connecting member is rotatably connected to the other end of the first connecting member. The driving wheel is rotatably connected to the other end of the third connecting member. One end of the first shock absorber is connected to the first connecting member, and the other end of the first shock absorber is connected to the third connecting member. The first connecting member, the third connecting member, and the first shock absorber are arranged in a triangular shape.

5. The delivery robot according to claim 1, wherein, the second suspension mechanism includes a fourth connecting member and a second shock absorber. One end of the fourth connecting member is rotatably connected to the other end of the second connecting member. The driven wheel is rotatably connected to the other end of the fourth connecting member. One end of the second shock absorber is connected to the second connecting member, and the other end of the second shock absorber is connected to the fourth connecting member. The second connecting member, the fourth connecting member, and the second shock absorber are arranged in a triangular shape.

6. The delivery robot according to claim 1, wherein, the driven wheel includes a first wheel body, a second wheel body, and a wheel frame. The first wheel body and the second wheel body are both sleeved on the wheel frame. The first wheel body and the second wheel body can both rotate relative to the wheel frame, and the radial dimension of the first wheel body is larger than that of the second wheel body. When the chassis is in a straight-line motion, the first wheel body and the second wheel body both rotate around a first central axis. When the chassis is in a steering motion state, while the first wheel body and the second wheel body rotate around the first central axis, the first wheel body rotates around a second central axis, and the second wheel body rotates around a third central axis.

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