CN212605547U - Logistics trolley - Google Patents

Abstract

The utility model relates to a commodity circulation field to a commodity circulation dolly is provided, include: a vehicle body; the travelling mechanism comprises two first wheel sets and two second wheel sets, the two first wheel sets are arranged at intervals along a first direction, each first wheel set comprises a first universal wheel, a driving wheel and a first hinge frame, the first universal wheels and the driving wheels are sequentially arranged along a second direction perpendicular to the first direction and are connected with the first hinge frames, the first hinge frames are hinged with the vehicle body at first hinge holes, the second wheel sets are arranged at the downstream of the driving wheels along the second direction and comprise second hinge frames and two second universal wheels, the two second universal wheels are connected to the two ends of the second hinge frames along the first direction, and the second hinge frames are hinged with the vehicle body at the second hinge holes; and the traction rod is arranged on the vehicle body and is used for connecting the logistics trolley with the towed vehicle, and the traction rod is positioned between the first hinge hole and the second hinge hole and is close to the first hinge hole in the second direction. In this way, the loading capacity of the logistics trolley can be improved.

Description

Logistics trolley

Technical Field

The utility model relates to a commodity circulation technical field, in particular to commodity circulation dolly.

Background

In the field of logistics, tractors and trucks (AMR or AGV) are widely used. Wherein the tractor transfers the item by pulling the towed vehicle; the carrier transports the object by carrying the object.

In the related art, the tractor and the carrier are generally only suitable for a single working condition, that is, the tractor only has a traction function, the carrier only has a bearing function, and the load capacity needs to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a technical problem that will solve is: the loading capacity of the logistics trolley is improved.

In order to solve the technical problem, the utility model provides a commodity circulation dolly, it includes:

a vehicle body;

the travelling mechanism comprises two first wheel sets and two second wheel sets, the two first wheel sets are arranged at intervals along a first direction, each first wheel set comprises a first universal wheel, a driving wheel and a first hinge frame, the first universal wheels and the driving wheels are sequentially arranged along a second direction perpendicular to the first direction and are connected with the first hinge frames, the first hinge frames are hinged with the vehicle body at first hinge holes, the second wheel sets are arranged at the downstream of the driving wheels along the second direction and comprise second hinge frames and two second universal wheels, the two second universal wheels are connected to the two ends of the second hinge frames along the first direction, and the second hinge frames are hinged with the vehicle body at the second hinge holes; and

the traction rod is arranged on the vehicle body and used for connecting the logistics trolley with the towed vehicle, and the traction rod is positioned between the first hinge hole and the second hinge hole and is close to the first hinge hole in the second direction.

In some embodiments, the second hinge hole is equidistant from the two first wheel sets in the first direction.

In some embodiments, the first wheel set includes a first limiting member for limiting the swing displacement of the first universal wheel and the driving wheel around the first hinge hole; and/or the second wheel set comprises a second limiting piece, and the second limiting piece is used for limiting the swinging displacement of the two second universal wheels around the second hinge hole.

In some embodiments, the first limiting member includes a limiting block, the limiting block is disposed on the upper surface of the first hinge frame, and limits the swing displacement of the first universal wheel and the driving wheel around the first hinge hole by contacting with a component above the limiting block; and/or the second limiting part comprises two limiting columns, and the two limiting columns are arranged below the second hinge frame and positioned on two sides of the second hinge hole along the first direction.

In some embodiments, the first wheel set further comprises a pre-compression spring that applies pressure to the drive wheel.

In some embodiments, the first wheel set includes a limiting groove into which a lower end of the pre-pressing spring is inserted, and a pressing cover pressed on an upper end of the pre-pressing spring.

In some embodiments, the logistics trolley further comprises a carrying device, and the carrying device is arranged on the top of the trolley body and is used for carrying the carried object.

In some embodiments, the draw bar is arranged in a lifting manner, and the carrying device is provided with a through hole, and the draw bar extends out of the through hole in the lifting process.

In some embodiments, the logistics cart further comprises at least one of:

the laser radar is arranged at one end of the vehicle body, which is far away from the second wheel set along the second direction;

the infrared warning pen is arranged at one end of the vehicle body, which is far away from the second wheel set along the second direction;

the ultrasonic sensor is arranged at least one of two ends of the vehicle body along the second direction; and/or, at least one of the two ends of the vehicle body along the first direction;

the monocular camera is arranged at least one of two ends of the vehicle body along the second direction; and/or, at least one of the two ends of the vehicle body along the first direction;

the depth camera is arranged at one end of the vehicle body, which is far away from the second wheel set along the second direction;

the safety touch edge is arranged around the vehicle body in a surrounding manner;

the gyroscope is positioned between the driving wheel and the first universal wheel along the second direction;

and the charging butt joint mechanism is arranged at one end of the vehicle body, which is far away from the second wheel set along the second direction.

In some embodiments, the logistics carts are AMR carts.

Through setting up running gear into through two first hinge holes and a second hinge hole and automobile body articulated three-point hinge formula structure to set up the traction lever into being close to first hinge point department, can increase the traction force of commodity circulation dolly, and strengthen whole car stability under the material dolly traction condition, this load capacity that is favorable to promoting the commodity circulation dolly.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a perspective view of a logistics trolley according to some embodiments of the present invention.

Fig. 2 is a first perspective view of the logistics trolley without a shell, a traction mechanism and a carrying device.

Fig. 3 is a second perspective view of the logistics trolley without the shell, the traction mechanism and the carrying device.

Fig. 4 is a first installation schematic of the running gear.

Fig. 5 is a second installation schematic of the running gear.

FIG. 6 is a partial view at the first wheel set.

Fig. 7 is a perspective view of a partial structure of the first wheel set.

Fig. 8 is a schematic view of the engagement of the driving wheel with the driving mechanism.

In the figure:

10. a logistics trolley;

1. a vehicle body; 11. a chassis; 111. a first plate; 112. a first hinge mount; 113. a mounting seat; 114. a connecting member; 115. a second hinge mount; 116. a second plate; 12. a housing; 13. a pillar;

2. a traveling mechanism; 21. a first wheel set; 211. a first universal wheel; 212. a drive wheel; 213. a first hinge frame; 213a, a first hinge hole; 213b, a first hinge shaft; 213c, a bushing; 213d, pressing the sleeve; 213e, a bolt; 214. a first limit piece; 214a and a limiting block; 215. pre-pressing a spring; 215a, a limiting groove; 215b, a gland; 216. a drive mechanism; 216a, a drive motor; 216b, a speed reducer; 22. a second wheel set; 221. a second universal wheel; 223. a second hinge frame; 223a, a second hinge hole; 223b, a second hinge shaft; 224. a second limiting member; 224a, a limiting column;

3. a traction mechanism; 31. a draw bar;

4. a carrying device; 41. a support plate; 42. a cover plate; 43. a through hole;

51. a laser radar; 52. an infrared warning pen; 53. an ultrasonic sensor; 54. a monocular camera; 55. safe edge contact; 56. a gyroscope; 57. a depth camera;

61. a battery; 62. a charging docking mechanism; 63. a direct current power supply;

71. an industrial personal computer; 72. a motion controller; 73. a driver.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by the ordinary skilled person in the art without developing the creative work belong to the protection scope of the present invention.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In the description of the present invention, it should be understood that the terms "first", "second", etc. are used to define the components, and are only used for the convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, should not be interpreted as limiting the scope of the present invention.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Fig. 1-8 exemplarily show the structure of the logistics trolley of the present invention.

For convenience of description, each direction is first defined by a coordinate system shown in fig. 1. The coordinate axis B is a first direction, represents the relative arrangement direction of the two first wheel sets, and is also the width direction of the vehicle body; the coordinate axis L is a second direction, represents the sequential arrangement direction of the first universal wheel and the driving wheel, and is also the length direction of the vehicle body; the coordinate axis H is a third direction, which indicates the height direction of the vehicle body, and is also the up-down direction. The first direction B, the second direction L and the third direction H are perpendicular to each other.

Referring to fig. 1-8, in some embodiments of the present invention, the logistics cart 10 includes a cart body 1, a traveling mechanism 2, and a traction mechanism 3.

The trolley body 1 is used for providing an installation foundation for other structural components of the logistics trolley 10 such as the travelling mechanism 2, the traction mechanism 3 and the like. Referring to fig. 1-2 and 4-6, in some embodiments, the vehicle body 1 includes a chassis 11 and a housing 12. The housing 12 is disposed around the chassis 11 and connected to the chassis 11 by a connector 114. The chassis 11 includes a first plate 111 and a second plate 116. The second plate 116 is connected to the first plate 111 by welding or the like. The second plate 116 is provided over the drive wheel 212 of the traveling mechanism 2.

The traveling mechanism 2 is arranged on the vehicle body 1 and used for realizing the traveling of the logistics trolley 10. Referring to fig. 1-8, in some embodiments, the travel mechanism 2 includes two first wheel sets 21 and two second wheel sets 22. The two first wheel sets 21 are arranged at intervals along the first direction B. The first wheel set 21 includes a first universal wheel 211, a driving wheel 212, and a first hinge bracket 213. The first universal wheel 211 and the driving wheel 212 are sequentially arranged in the second direction L and are both connected to the first hinge frame 213. The first hinge bracket 213 is hinged to the vehicle body 1 at the first hinge hole 213 a. The second wheel set 22 is arranged downstream of the drive wheel 212 in the second direction L and comprises a second articulated frame 223 and two second universal wheels 221. Two second universal wheels 221 are connected to both ends of the second hinge frame 223 in the first direction B. The second hinge bracket 223 is hinged to the vehicle body 1 at the second hinge hole 223 a.

The driving wheel 212 is a wheel drivingly connected to the driving mechanism 216, and is driven to rotate by the driving mechanism 216, and is a driving wheel. Referring to fig. 8, in some embodiments, the drive mechanism 216 includes a drive motor 216a and a reducer 216 b. The driving motor 216a is drivingly connected to the driving wheel 212 via a speed reducer 216 b. The reducer 216b may be specifically a hub reducer.

Based on the above arrangement, referring to fig. 5, the traveling mechanism 2 has six wheels, the six wheels are hinged to the vehicle body 1 through three hinge points, that is, two hinge points corresponding to two first wheel sets 21 and one hinge point corresponding to one second wheel set 22, and the three hinge points are arranged in a triangle, the two hinge points corresponding to the two first wheel sets 21 form two points of the bottom side of the triangle, and the one hinge point corresponding to the one second wheel set 22 forms the vertex of the triangle. Because a plane is determined by the three points, the three-point hinged structure can ensure that 6 wheels of the travelling mechanism 2 can keep contact with the ground even under the condition of uneven road surface, thereby being beneficial to improving the running stability, being beneficial to keeping upper loading platforms such as the supporting device 4 and the like to be relatively parallel to the ground, improving the carrying stability and enhancing the loading capacity.

Referring to fig. 5, in some embodiments, the second hinge hole 223a is equidistant from the two first wheel sets 21 in the first direction B. At this moment, the triangle that three pin joint corresponds is equilateral triangle, is favorable to realizing more stable walking and delivery process.

The first hinge hole 213a and the second hinge hole 223a are respectively located on the first hinge frame 213 and the second hinge frame 223, the axes are along the first direction B, and the first hinge hole 213a and the second hinge hole 223a are respectively hinged to the first hinge seat 112 and the second hinge seat 115 arranged on the chassis 1 through the first hinge shaft 213B and the second hinge shaft 223B, so that the driving wheel 212 and the first universal wheel 211 can swing up and down around the axis of the first hinge hole 213a, and the second universal wheel 221 can swing up and down around the axis of the second hinge hole 223 a.

Specifically, referring to fig. 4 to 7, in some embodiments, the first plate 111 is provided with a first hinge seat 112, the first hinge seat 112 is provided with a first mounting hole (not shown) corresponding to the first hinge hole 213a, and the first hinge shaft 213b passes through the first hinge hole 213a and the first mounting hole, so as to realize the hinge connection between the first hinge frame 213 and the first hinge seat 112, and further realize the hinge connection between the first hinge frame 213 and the chassis 1, so that the first wheel set 21 can be hinged to the vehicle body 1 through the first hinge hole 213 a. In addition, referring to fig. 3 to 5, in some embodiments, a second hinge seat 115 is disposed on the first plate 111, a second mounting hole (not shown) corresponding to the second hinge hole 223a is disposed on the second hinge seat 115, and a second hinge shaft 223b passes through the second hinge hole 223a and the second mounting hole, so that the second hinge frame 223 is hinged to the second hinge seat 115, and further the second hinge frame 223 is hinged to the chassis 1, so that the second wheel set 22 can be hinged to the vehicle body 1 through the second hinge hole 223 a.

More specifically, referring to fig. 5 to 6, in some embodiments, when the first hinge shaft 213b hinges the first hinge frame 213 and the first hinge base 113, a bushing 213c is further provided between the first hinge shaft 213b and the first hinge hole 213 a. Meanwhile, both ends of the first hinge shaft 213b are also fastened by a fastening member such as a bolt 213 e. Two bolts 213e are inserted into the inside of the first hinge shaft 213b from both axial ends of the first hinge shaft 213 b. And a pressing sleeve 213d is further provided between the head of the bolt 213e and the first hinge shaft 213 b.

In addition, in order to control the swing range of the first wheel set 21, referring to fig. 7, in some embodiments, the first wheel set 21 includes a first limiting member 214, and the first limiting member 214 is configured to limit the swing displacement of the first universal wheel 211 and the driving wheel 212 around the first hinge hole 213 a. For example, the first stopper 214 includes a stopper 214a, and the stopper 214a is disposed on an upper surface of the first hinge frame 213 and limits the swing displacement of the first universal wheel 211 and the driving wheel 212 about the first hinge hole 213a by contacting a member (e.g., a carrier 4 to be mentioned later) above the stopper 214 a. Thus, the first universal wheel 211 and the driving wheel 212 can be controlled to swing within a certain range. The first limiting member 214 may be made of a polyurethane material, so as to play a role of buffering while playing a limiting role.

In order to control the swing range of the second wheel set 22, referring to fig. 3 and 4, in some embodiments, the second wheel set 22 includes a second limiting member 224, and the second limiting member 224 is configured to limit the swing displacement of the two second universal wheels 221 around the second hinge hole 223 a. For example, the second limiting member 224 includes two limiting posts 224a, and the two limiting posts 224a are disposed below the second hinge frame 223 and located at two sides of the second hinge hole 223a along the first direction B. Thus, the second universal wheel 221 can be controlled to swing within a certain range. The second limiting member 224 may be made of a polyurethane material, so as to play a role of buffering while playing a limiting role.

The traction mechanism 3 is arranged on the vehicle body 1 and is used for connecting the logistics trolley 10 with a towed vehicle so as to enable the logistics trolley 10 to have a traction function. Referring to fig. 1, in some embodiments, the towing mechanism 3 includes a tow bar 31, and the towing mechanism 3 is coupled to the towed vehicle by a tow bar 231. Wherein, in the second direction L, the drawbar 31 is located between the first hinge hole 213a and the second hinge hole 223a and adjacent to the first hinge hole 213 a. The drawing rod 31 approaches the first hinge hole 213a in the sense that the distance between the drawing rod 31 and the first hinge hole 213a is smaller than the distance between the drawing rod 31 and the second hinge hole 223a in the second direction L.

On the basis that a three-point hinge structure is formed between the travelling mechanism 2 and the vehicle body 1 based on the two first hinge holes 213a and the second hinge hole 223a, the traction rod 31 is further arranged to be close to the first hinge hole 213a, so that traction force can be distributed more reasonably when the logistics trolley 10 is in a traction working condition, the stability of the whole vehicle of the logistics trolley 10 in a traction state is improved, the traction force which can be provided by the logistics trolley 10 is increased, and the load capacity of the logistics trolley 10 is improved.

The traction rod 31 is arranged close to the first hinge hole 213a, so that the definition of the direction of the head of the logistics trolley 10 is realized. Along the second direction L, one side of the first universal wheel 211 is a head, and one side of the second universal wheel 221 is a tail. When the traction task is executed, the logistics trolley 10 pulls the towed vehicle to the side of the vehicle head (i.e. the direction opposite to the second direction L).

In addition, referring to fig. 1, in some embodiments, the logistics trolley 10 includes not only the trolley body 1, the traveling mechanism 2 and the traction mechanism 3, but also the carrying device 4. The carrying device 4 is arranged on the top of the vehicle body 1 and is used for carrying the carried object, so that the logistics trolley 10 has a carrying function.

It can be seen that, based on the traction mechanism 3 and the carrying device 4, the logistics trolley 10 has both a traction function and a carrying function, and is suitable for both the traction function and the carrying function, and is a logistics trolley integrating the functions of a common tractor and a carrier.

Under the condition that the logistics trolley 10 has the traction function and the carrying function, the three-point hinged structure of the walking mechanism 2 can increase the traction force of the logistics trolley 10, so that the logistics trolley 10 can provide larger traction force, and simultaneously, the positive pressure of the driving wheel 212 can be increased along with the increase of carrying load, so that the carrying capacity of the logistics trolley 10 is enhanced, the logistics trolley 10 can carry heavier carried objects, and the two aspects are the performance of improving the load capacity of the logistics trolley 10.

Wherein the carrier device 4 may be supported by a pillar 13 provided on the chassis 11. Specifically, referring to fig. 1, 4 and 5, in some embodiments, the first plate 111 is provided with a mounting seat 113, the supporting column 13 is disposed on the mounting seat 113, and the supporting and carrying device 4 is disposed on the top of the supporting column 13, so that the supporting column 13 can support the supporting and carrying device 4. The number of the pillars 13 may be plural (e.g., 4), and the pillars may be distributed at different positions of the vehicle body 1, so as to more smoothly support the carrier device 4.

Referring to fig. 1, in the case where the carrying device 4 is provided, the draw bar 31 may be provided to be ascendable and descendable, and at the same time, the carrying device 4 may be provided with a through hole 43, and the draw bar 31 may be protruded from the through hole 43 in ascending. Specifically, referring to fig. 1, in some embodiments, the carrier 4 includes a support plate 41 and a cover plate 42, and the cover plate 42 is detachably disposed inside an edge of the support plate 41. The through hole 43 is provided in the cover plate 42, and the draw bar 31 is provided in the through hole 43 so as to be movable up and down.

Based on the arrangement, when the towed vehicle needs to be towed, the logistics trolley 10 can be submerged into the bottom of the towed vehicle, and the towing rod 31 is lifted, so that the towing rod 31 is inserted into the jack matched with the towing rod 31 of the towed vehicle, the connection between the logistics trolley 10 and the towed vehicle is realized, the logistics trolley 10 can conveniently tow the towed vehicle, and the towed vehicle can be transported; after the towed vehicle is carried to the designated position, the traction rod 31 can be lowered to separate the traction rod 31 from the jack, so that the material trolley 10 is separated from the towed vehicle, and the material trolley 10 can be conveniently pulled out from the bottom of the towed vehicle.

Therefore, the walking mechanism 2 is set to be in a three-point hinged structure form, and the traction rods 31 and the like are reasonably arranged, so that the load capacity of the logistics trolley 10 can be effectively improved.

To further increase the load capacity of the logistics trolley 10, referring to fig. 3, 5 and 6, in some embodiments, the first wheel set 21 further comprises a pre-pressure spring 215, and the pre-pressure spring 215 applies pressure to the driving wheel 212.

The walking mechanism 2 with three-point hinged is further provided with the pre-pressing spring 215 which applies pressure to the driving wheel 212, so that the self weight of the logistics trolley 10 can be converted into the positive pressure of the driving wheel 212, the positive pressure of the driving wheel 212 is increased, the logistics trolley 10 can provide larger traction force, and under the condition that the logistics trolley 10 has a negative function, the logistics trolley 10 can provide larger negative force, so that the logistics trolley 10 can provide larger driving force under the condition that the motor power is met, and the load capacity of the logistics trolley 10 is effectively improved.

With continued reference to fig. 3, 5, and 6, in some embodiments, the first wheel set 21 includes a limiting groove 215a and a gland 215b, a lower end of the pre-pressure spring 215 is inserted into the limiting groove 215a, and the gland 215b is pressed against an upper end of the pre-pressure spring 215. Thus, the pre-pressing spring 215 can be fixed and fixed, and the pre-pressing spring 215 is limited. Referring to fig. 8, the stopper groove 215a may be provided in the speed reducer 216 b. The gland 215b may be coupled to the second plate 116 by a fastener such as a bolt 213 e.

It can be seen that the walking mechanism 2 of the logistics trolley 10 is set to be in a structure form of three-point hinge and spring prepressing, and the traction mechanism 3 and the bearing device 4 are reasonably arranged, so that the logistics trolley 10 has the functions of traction and bearing, the load capacity of the logistics trolley 10 can be effectively improved, and the logistics trolley 10 can provide larger traction force and bearing force.

Referring additionally to fig. 1-3, in some embodiments, the logistics cart 10 further comprises at least one of:

a laser radar 51 provided at one end of the vehicle body 1 away from the second wheel set 22 in the second direction L (i.e., a vehicle head end);

the infrared warning pen 52 is arranged at one end of the vehicle body 1 far away from the second wheel set 22 along the second direction L;

an ultrasonic sensor 53 provided at least one of both ends of the vehicle body 1 in the second direction L; and/or at least one of the two ends of the vehicle body 1 in the first direction B;

a monocular camera 54 provided at least one of both ends of the vehicle body 1 in the second direction L; and/or at least one of the two ends of the vehicle body 1 in the first direction B;

a depth camera 57 disposed at one end of the vehicle body 1 away from the second wheel set 22 in the second direction L;

the safety contact edge 55 is arranged around the vehicle body 1 in a surrounding manner;

a gyroscope 56 located between the drive wheel 212 and the first universal wheel 211 in the second direction L;

and a charging docking mechanism 62 provided at one end of the vehicle body 1 away from the second wheel set 22 in the second direction L.

For example, referring to fig. 2, in some embodiments, the logistics trolley 10 includes one laser radar 51, and the number of the laser radars 51 is one, and the laser radars 51 are disposed at one end of the vehicle head and located between two first universal wheels 211 along the first direction B.

Referring to fig. 1-3, in some embodiments, the logistics trolley 10 includes an infrared laser pointer 52, and the infrared laser pointer 52 is disposed at one end of the vehicle head. Specifically, as shown in fig. 1-3, in some embodiments, two infrared laser pens 52 are spaced apart along the first direction B at one end of the vehicle head. And, the two infrared laser pens 52 are symmetrical with respect to the laser radar 51.

Referring to fig. 2, in some embodiments, the logistics trolley 10 includes the ultrasonic sensors 53, and the number of the ultrasonic sensors 53 is 6, including two sensors disposed at one end of the vehicle head, two sensors disposed at one end of the vehicle tail, and two sensors disposed at two sides of the vehicle body 1 along the first direction B.

Referring to fig. 2, in some embodiments, the logistics trolley 10 comprises monocular cameras 54, and the number of the monocular cameras 54 is 4, including one at the head end, one at the tail end, and two at both sides of the trolley body 1 in the first direction B.

Referring to fig. 2, in some embodiments, the logistics cart 10 includes one depth camera 57, and the number of the depth cameras 57 is one, and the one depth camera 57 is disposed at one end of the cart head.

Referring to fig. 2, in some embodiments, the logistics trolley 10 includes one gyroscope 56, the number of gyroscopes 56 is one, and the one gyroscope 56 is located at one end of the vehicle head and located between two first universal wheels 211 in the first direction B and located between the first universal wheels 211 and the driving wheel 21 in the second direction L.

Referring to fig. 2, in some embodiments, the logistics trolley 10 includes a charging docking mechanism 62, and the number of the charging docking mechanism 62 is one, and is located at one end of the vehicle head, and is used for charging the battery 61 of the logistics trolley 10.

Referring to fig. 2, in some embodiments, the logistics trolley 10 includes a safety access edge 55, and the safety access edge 55 is disposed around the chassis 11.

Due to the arrangement of the monitoring components, the logistics trolley 10 has the functions of automatic detection, automatic induction, automatic route planning and the like.

In addition, referring to fig. 2, in some embodiments, the logistics trolley 10 further includes an industrial personal computer 71, a motion controller 72, and a driver 73, which are disposed on the trolley body 1, so as to realize automatic control of various functions such as walking, carrying, and detecting.

In the above embodiments, the material flow cart 10 may be an AMR cart (Automated Mobile Robot).

The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A logistics trolley (10), comprising:

a vehicle body (1);

running gear (2) comprising two first wheel sets (21) and a second wheel set (22), said two first wheel sets (21) being arranged at intervals along a first direction (B), said first wheel sets (21) comprising first universal wheels (211), drive wheels (212) and first articulated frames (213), said first universal wheels (211) and said drive wheels (212) being arranged in sequence along a second direction (L) perpendicular to said first direction (B) and being connected both to said first articulated frames (213), said first articulated frames (213) being articulated to said body (1) at first articulated holes (213a), said second wheel sets (22) being arranged downstream of said drive wheels (212) along said second direction (L) and comprising second articulated frames (223) and two second universal wheels (221), said two second universal wheels (221) being connected to the second articulated frames (223) at both ends along said first direction (B), the second hinge frame (223) is hinged to the vehicle body (1) at a second hinge hole (223 a); and

and the traction rod (31) is arranged on the vehicle body (1) and is used for connecting the logistics trolley (10) with a towed vehicle, and in the second direction (L), the traction rod (31) is positioned between the first hinge hole (213a) and the second hinge hole (223a) and is close to the first hinge hole (213 a).

2. Logistics trolley (10) according to claim 1, wherein the second hinge hole (223a) is equidistant from the two first wheel sets (21) in the first direction (B).

3. The logistics trolley (10) of claim 1, wherein the first wheel set (21) comprises a first stopper (214), the first stopper (214) is used for limiting the swing displacement of the first universal wheel (211) and the driving wheel (212) around the first hinge hole (213 a); and/or the second wheel set (22) comprises a second limiting member (224), and the second limiting member (224) is used for limiting the swinging displacement of the two second universal wheels (221) around the second hinge hole (223 a).

4. The logistics trolley (10) of claim 3, wherein the first limiting member (214) comprises a limiting block (214a), the limiting block (214a) is arranged on the upper surface of the first hinge frame (213) and limits the swinging displacement of the first universal wheel (211) and the driving wheel (212) around the first hinge hole (213a) by contacting with a component above the limiting block (214 a); and/or the second limiting part (224) comprises two limiting columns (224a), wherein the two limiting columns (224a) are arranged below the second hinge frame (223) and are positioned at two sides of the second hinge hole (223a) along the first direction (B).

5. The logistics trolley (10) of any of claims 1 to 4 wherein the first wheel set (21) further comprises a pre-load spring (215), the pre-load spring (215) exerting pressure on the drive wheel (212).

6. The logistics trolley (10) of claim 5, wherein the first wheel set (21) comprises a limiting groove (215a) and a gland (215b), the lower end of the pre-pressing spring (215) is inserted into the limiting groove (215a), and the gland (215b) is pressed on the upper end of the pre-pressing spring (215).

7. The logistics trolley (10) of any one of claims 1 to 4, wherein the logistics trolley (10) further comprises a carrying device (4), and the carrying device (4) is arranged on the top of the trolley body (1) and is used for carrying the carried object.

8. Logistics trolley (10) according to claim 7, wherein the draw bar (31) is arranged in a liftable manner, and the carrying device (4) is provided with a through hole (43), and the draw bar (31) extends out of the through hole (43) during the lifting process.

9. The logistics trolley (10) of claim 1 wherein the logistics trolley (10) further comprises at least one of:

a laser radar (51) arranged at one end of the vehicle body (1) far away from the second wheel set (22) along the second direction (L);

the infrared warning pen (52) is arranged at one end, far away from the second wheel set (22), of the vehicle body (1) along the second direction (L);

an ultrasonic sensor (53) provided at least one of both ends of the vehicle body (1) in the second direction (L); and/or at least one of the two ends of the body (1) in the first direction (B);

a monocular camera (54) provided at least one of both ends of the vehicle body (1) in the second direction (L); and/or at least one of the two ends of the body (1) in the first direction (B);

a depth camera (57) provided at one end of the vehicle body (1) away from the second wheel set (22) in the second direction (L);

the safety contact edge (55) is arranged around the vehicle body (1);

-a gyroscope (56) located between the driving wheel (212) and the first universal wheel (211) along the second direction (L);

and the charging butt joint mechanism (62) is arranged at one end, far away from the second wheel set (22), of the vehicle body (1) along the second direction (L).

10. The logistics trolley (10) of claim 1 wherein the logistics trolley (10) is an AMR trolley.

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