Carrying trolley

Abstract

The utility model discloses a carrying trolley which comprises a chassis and a carrying mechanism, a support is installed on the chassis, a loading space is defined by the chassis and the support, and two inlets and outlets are formed in the two sides of the loading space in the X direction. The carrying mechanism comprises carrying structures and a conveying belt which are distributed at intervals in the Y direction. The conveying belt extends in the X direction, supports the tray and is in rolling fit with the tray. The carrying structure comprises an X-direction module and a lifting module, the lifting module comprises a mounting base, a connecting plate, a lifting rod and a driving part, the connecting plate is connected with the X-direction module and the mounting base, the lifting rod is vertically arranged on the mounting base, and the driving part is used for driving the lifting rod to ascend or descend in the Z direction so that the lifting rod can abut against or be separated from the bottom of the tray; the X-direction module is used for driving the connecting plate to move in the X direction and driving the tray to slide in the X direction when the lifting rod abuts against the tray. The tray can slide into or out of the loading space from the inlet and outlet under the driving of the carrying structure, manpower and time are effectively saved, and automatic loading and unloading of goods are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of transport equipment, in particular to a transport trolley. Background Art

[0002] A transport trolley is a common device for transporting goods, usually used to transport pallets and goods loaded on pallets. After the transport trolley travels to the predetermined loading and unloading position, due to the limitation of the shape of the transport trolley bracket, it is difficult for existing automated transport equipment to extend into the carriage of the transport trolley. Therefore, manual loading and unloading operations of the pallet and the goods loaded on the pallet are required, which consumes a lot of manpower and loading and unloading time, and is difficult to meet the needs of automated operations. Utility Model Content

[0003] The main purpose of the utility model is to provide a transport trolley, aiming to solve the technical problems in the prior art that automated transport equipment is difficult to extend into the carriage of the transport trolley, requiring manual loading and unloading operations on pallets and goods loaded on pallets, consuming a lot of manpower and loading and unloading time, and being difficult to meet the needs of automated operations.

[0004] To achieve the above-mentioned purpose, the utility model proposes a transport trolley, including a chassis and a transport mechanism, a bracket is installed on the chassis, the chassis and the bracket are enclosed to form a loading space, and two entrances and exits for pallets to enter and exit the loading space are respectively formed on both sides of the loading space along the X direction; the transport mechanism includes a transport structure and a conveyor belt, and the transport structure and the conveyor belt are spaced along the Y direction; the conveyor belt extends along the X direction, and the conveyor belt is used to support the pallet and cooperate with the pallet in rolling; the transport structure includes an X-direction module and a lifting module, and the lifting module includes a mounting seat, a connecting plate, a lifting rod and a driving member, the connecting plate connects the X-direction module and the mounting seat, the lifting rod is vertically arranged on the mounting seat, the driving member is installed on the mounting seat, and the driving member is used to drive the lifting rod to rise or fall along the Z direction so that the lifting rod abuts or disengages from the bottom of the pallet; the X-direction module is used to drive the connecting plate to move along the X direction, and when the lifting rod abuts against the pallet, the pallet is driven to slide along the X direction through the mounting seat.

[0005] Optionally, the mounting seat includes a base and a mounting plate, the mounting plate is installed on the top of the base and connected to the connecting plate, the driving member is installed on the base and located below the mounting plate, and the mounting seat is provided with a slide rail extending along the Z direction, the slide rail passes through the mounting plate and extends upward, the lifting rod passes through the mounting plate and extends upward and slidably cooperates with the slide rail.

[0006] Optionally, the driving member is a rotary driving member, an output shaft of the rotary driving member is connected to a gear, and a tooth pattern meshing with the gear is formed at the bottom of the lifting rod.

[0007] Optionally, there are multiple lifting modules, and the multiple lifting modules are arranged at intervals along the X direction, and the connecting plates of each lifting module are connected to the X-direction module.

[0008] Optionally, the conveyor belt includes a guide plate installed on the chassis, the guide plate forms a conveying trough extending along the X direction, a plurality of rollers spaced apart along the X direction are installed in the conveying trough, and the top of each roller extends out of the conveying trough and rolls with the pallet.

[0009] Optionally, the number of the conveyor belts is two, and the two guide plates in the two conveyor belts are arranged at intervals along the Y direction on both sides of the transport structure.

[0010] Optionally, a limit assembly is provided on the chassis at a position corresponding to each of the inlets and outlets, the limit assembly comprising a limit seat, a limit block and a limit drive, the limit seat is mounted on the chassis, and the limit block is rotatably mounted on the limit seat; the limit drive is used to drive the limit block to rotate upward until it abuts against the side of the pallet located in the loading space; when the pallet enters and exits the loading space through the inlets and outlets, the limit block is pressed downward to cause the limit block to rotate downward to the bottom of the pallet.

[0011] Optionally, each of the inlets and outlets is provided with two limit assemblies, the two limit assemblies at the same inlet and outlet are spaced apart along the Y direction, and the two limit blocks of the two limit assemblies at the same inlet and outlet are connected by a linkage rod.

[0012] Optionally, a traction assembly is provided on both sides of the chassis along the Y direction, and the traction assembly includes two traction rods, one end of each traction rod is hinged to the chassis to form a hinged end, and the other end forms a free end, and the hinged end and the free end of the two traction rods in the same traction assembly are arranged in opposite directions; the two traction rods of one traction assembly are arranged opposite to the two traction rods of the other traction assembly, and the hinged end and the free end of the two traction rods arranged opposite to each other are arranged oppositely.

[0013] Optionally, hinge seats are provided at positions corresponding to the hinged ends on both sides of the chassis along the Y direction, and a hinge shaft extending along the Z direction is provided on the hinge seat. The hinged end and the free end of the traction rod are respectively provided with a first axial hole and a second axial hole, and the hinged end of the traction rod is hingedly connected with the corresponding hinge shaft of the hinge seat through the first axial hole, and the free end of the traction rod can rotate relative to the hinged end, and the free end of the traction rod can also be hingedly connected with the hinge shaft of the hinge seat at the corresponding position on the other transport trolley through the second axial hole.

[0014] The transport trolley proposed by the utility model is provided with a transport structure and a conveyor belt on the chassis so that the conveyor belt is supported on the bottom of the pallet. When the pallet needs to be transported, the driving member in the transport structure drives the lifting rod to rise, so that the top of the lifting rod extends into the hole at the bottom of the pallet until the top of the lifting rod abuts against the bottom of the pallet, and then the lifting module is driven to move along the X direction through the X-direction module, so that the lifting rod drives the pallet to slide along the X direction, and the conveyor belt and the pallet are rollingly matched, so that the pallet can smoothly slide into or out of the loading space from the inlet and outlet on both sides of the transport trolley along the X direction, so that the external automatic loading and unloading equipment can load and unload the goods loaded on the pallet. The loading and unloading process does not require manual operation, which effectively saves manpower and loading and unloading time, and can realize the automatic loading and unloading of goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0016] Figure 1 This is a structural schematic diagram of a transport trolley from one perspective of an embodiment of the utility model;

[0017] Figure 2 This is a structural schematic diagram of a transport trolley from another perspective of an embodiment of the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a transport trolley according to an embodiment of the utility model;

[0019] Figure 4 This is a structural schematic diagram of a position limiting assembly in a transport trolley according to an embodiment of the utility model;

[0020] Figure 5 It is a structural schematic diagram of a lifting module in a transport trolley according to an embodiment of the utility model.

[0021] Description of Figure Numbers:

[0022]

[0023]

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0029] In the present invention, the descriptions of directions such as "upper", "lower", "front", "back", "left", and "right" are as follows: Figure 1 and Figure 2 The directions shown are for reference only and are used to explain the Figure 1 and Figure 2 The relative position relationship between the components in the shown posture. If the specific posture changes, the directional indication will also change accordingly.

[0030] The utility model proposes a transport trolley, including a chassis 10 and a transport mechanism 20, wherein a bracket 11 is installed on the chassis 10, and the chassis 10 and the bracket 11 enclose a loading space, and two inlets and outlets 12 for a pallet 200 to enter and exit the loading space are respectively formed on both sides of the loading space along the X direction; the transport mechanism 20 includes a transport structure 21 and a conveyor belt 22, and the transport structure 21 and the conveyor belt 22 are spaced apart along the Y direction; the conveyor belt 22 extends along the X direction, and the conveyor belt 22 is used to support the pallet 200 and cooperate with the pallet 200 in rolling; the transport structure 21 includes an X-direction module and a lifting module 212, and the lifting module 212 includes an installation The mounting seat 2121, the connecting plate 2122, the lifting rod 2123 and the driving member 2124, the connecting plate 2122 connects the X-direction module and the mounting seat 2121, the lifting rod 2123 is vertically arranged on the mounting seat 2121, and the driving member 2124 is installed on the mounting seat 2121. The driving member 2124 is used to drive the lifting rod 2123 to rise or fall along the Z direction so that the lifting rod 2123 abuts against or disengages from the bottom of the pallet 200; the X-direction module is used to drive the connecting plate 2122 to move along the X direction, and when the lifting rod 2123 abuts against the pallet 200, it drives the pallet 200 to slide along the X direction through the mounting seat 2121.

[0031] like Figure 1 As shown, the X direction is Figure 1 The left and right directions in the Y direction are Figure 1 The front-to-back direction in the Z direction is Figure 1The bracket 11 is mounted on the chassis 10, and a plurality of universal wheels are mounted under the chassis 10. The bracket 11 and the chassis 10 form a loading space for loading the pallet 200 and goods, and the chassis 10 is provided with a conveyor belt 22 extending in the left-right direction. When the pallet 200 is located in the loading space, the pallet 200 can be placed on the conveyor belt 22, and the transport structure 21 is arranged between the pallet 200 and the chassis 10, and the transport structure 21 is not in direct contact with the bottom of the pallet 200; when the pallet 200 needs to be transported, the driving member 2124 drives the lifting rod 2123 to rise, and the top of the lifting rod 2123 extends into the hole opened at the bottom of the pallet 200 until the top of the lifting rod 2123 abuts against the bottom of the pallet 200. At this time, the X-axis module drives the lifting module 212 to move in the left and right directions, and the lifting rod 2123 abuts against the hole wall at the bottom of the pallet 200 through its top side surface, thereby driving the pallet 200 to move synchronously with the lifting rod 2123, thereby driving the pallet 200 to slide left and right on the conveyor belt 22, so that the pallet 200 can enter and exit the loading space from the inlet and outlet 12 on the left and right sides of the transport trolley 100.

[0032] The transport trolley proposed by the utility model is provided with a transport structure 21 and a conveyor belt 22 on the chassis 10, so that the conveyor belt 22 is supported on the bottom of the pallet 200. When the pallet 200 needs to be transported, the driving member 2124 in the transport structure 21 drives the lifting rod 2123 to rise, so that the top of the lifting rod 2123 extends into the hole at the bottom of the pallet 200, until the top of the lifting rod 2123 abuts against the bottom of the pallet 200, and then drives the lifting module 212 to move left and right through the X-axis module, so that the lifting rod 2123 drives the pallet 200 to slide left and right, and the conveyor belt 22 and the pallet 200 roll together, so that the pallet 200 can smoothly slide into or out of the loading space from the inlet and outlet 12 on the left and right sides of the transport trolley 100, so that the external automatic loading and unloading equipment can load and unload the goods loaded on the pallet 200. The loading and unloading process does not require manual operation, which effectively saves manpower and loading and unloading time, and can realize the automatic loading and unloading of goods.

[0033] In one embodiment, the mounting seat 2121 includes a base 2121a and a mounting plate 2121b, the mounting plate 2121b is installed on the top of the base 2121a and connected to the connecting plate 2122, the driving member 2124 is installed on the base 2121a and is located below the mounting plate 2121b, and a slide rail 2125 extending along the Z direction is provided on the mounting seat 2121, the slide rail 2125 passes through the mounting plate 2121b and extends upward, and the lifting rod 2123 passes through the mounting plate 2121b and extends upward and slidably cooperates with the slide rail 2125.

[0034] like Figure 5As shown, the mounting plate 2121b extends along the X direction, one end of the mounting plate 2121b is connected to the connecting plate 2122, and the other end of the mounting plate 2121b is connected to the top of the base 2121a. The driving member 2124 is mounted on the base 2121a and extends toward the X direction, so that the driving member 2124 is located below the mounting plate 2121b and the connecting plate 2122, and the structure is compact and more space-saving. The slide rail 2125 and the lifting rod 2123 are both vertically arranged and pass through the mounting plate 2121b. The lifting rod 2123 rises or falls along the slide rail 2125 under the driving action of the driving member 2124. The slide rail 2125 provides stable support for the lifting rod 2123, ensuring that the lifting rod 2123 remains stable when rising or falling.

[0035] In one embodiment, the driving member 2124 is a rotating driving member 2124 , the output shaft of the rotating driving member 2124 is connected to a gear, and the bottom of the lifting rod 2123 is formed with teeth meshing with the gear.

[0036] Furthermore, the driving member 2124 adopts a rotary driving member 2124 in the prior art, such as a motor. When the output shaft of the rotary driving member 2124 rotates, the gear connected to the output shaft rotates synchronously, and the gear meshes with the tooth pattern on the lifting rod 2123 to drive the lifting rod 2123 to move along the Z direction, thereby achieving the lifting and lowering of the lifting rod 2123. Through the meshing of the gear with the tooth pattern on the lifting rod 2123, the carrying structure 21 has a compact internal structure, and the lifting rod 2123 is more stable during the lifting process.

[0037] In one embodiment, there are multiple lifting modules 212 , and the multiple lifting modules 212 are arranged at intervals along the X direction, and the connecting plates 2122 of each lifting module 212 are connected to the X-direction module.

[0038] like Figure 3 As shown, the connecting plates 2122 of the multiple lifting modules 212 are all connected to the X-direction module, and the mounting seats 2121 of the multiple lifting modules 212 are all located on the same side of the X-direction module, so that the multiple lifting modules 212 can move synchronously along the X-direction. The multiple lifting rods 2123 of the multiple lifting modules 212 can abut against the bottom of the tray 200 at the same time, and jointly drive the tray 200 to move along the X-direction. The arrangement of the multiple lifting modules 212 ensures that the multiple lifting rods 2123 have sufficient driving force on the tray 200. The specific number of the lifting modules 212 is determined according to the weight of the tray 200. In one embodiment, the number of the lifting modules 212 is three.

[0039] In one embodiment, the conveyor belt 22 includes a guide plate 221 installed on the chassis 10, the guide plate 221 forms a conveying groove extending along the X-direction, and a plurality of rollers 222 are installed in the conveying groove and are distributed at intervals along the X-direction, and the top of each roller 222 extends out of the conveying groove and rolls with the pallet 200.

[0040] like Figure 3 As shown, the guide plate 221 is U-shaped, and the guide plates 221 enclose a conveying trough. The guide plate 221 extends along the X direction. A plurality of mounting holes for the cylinder shaft of the roller 222 to pass through are provided at both ends of the guide plate 221 along the Y direction. A plurality of rollers 222 are installed on the guide plate 221 at intervals along the X direction, and the cylinder shaft of each roller 222 is arranged along the Y direction. The top of each roller 222 extends out of the conveying trough and is used to support the tray 200. When the tray 200 moves along the X direction, the bottom of the tray 200 rolls with the plurality of rollers 222. The conveyor belt 22 formed by the guide plate 221 and the plurality of rollers 222 supports the tray 200, and there is a small friction between the conveyor belt 22 and the bottom of the tray 200, so that the tray 200 moves more easily on the conveyor belt 22, so that the lifting module 212 applies a smaller driving force to the tray 200 to drive the tray 200 to move.

[0041] In one embodiment, the number of the conveyor belts 22 is two, and the two guide plates 221 of the two conveyor belts 22 are arranged at intervals on both sides of the transport structure 21 along the Y direction.

[0042] It can be understood that two conveyor belts 22 are arranged on both sides of the chassis 10 in the front-to-back direction at intervals, and the transport structure 21 is located between the two conveyor belts 22. When the pallet 200 is located in the loading space, the front and rear sides of the pallet 200 can be placed on the two conveyor belts 22, and move in the left and right directions under the action of the transport structure 21 and the two conveyor belts 22, so that the pallet 200 is more stable during the placement and movement process.

[0043] In one embodiment, a limit assembly 30 is provided on the chassis 10 at a position corresponding to each inlet and outlet 12. The limit assembly 30 includes a limit seat 31, a limit block 32 and a limit driving member 2124. The limit seat 31 is installed on the chassis 10, and the limit block 32 is rotatably installed on the limit seat 31; the limit driving member 2124 is used to drive the limit block 32 to rotate upward until it abuts against the side of the pallet 200 located in the loading space; when the pallet 200 enters and exits the loading space through the inlet and outlet 12, the limit block 32 is pressed downward to allow the limit block 32 to rotate downward to the bottom of the pallet 200.

[0044] like Figure 3As shown, the limiting seat 31 is fixed to the position of the base 2121a corresponding to the inlet and outlet 12, and the middle part of the limiting block 32 is hinged on the limiting seat 31, so that the end of the limiting block 32 can rotate along the hinge, and when the end of the limiting block 32 is located at the top, the end of the limiting block 32 can abut against the outer side of the tray 200. When the tray 200 slides left and right and passes through the inlet and outlet 12, the tray 200 is pressed above the limiting block 32, and the end of the limiting block 32 rotates downward under the pressure of the tray 200, so that the tray 200 can smoothly pass through the inlet and outlet 12; when the tray 200 completely enters the loading space, the limiting block 32 rotates upward under the action of the limiting driving member 2124, so that the limiting blocks 32 at the two inlets and outlets 12 respectively abut against the two sides of the tray 200 from the left and right directions, so as to limit the tray 200 in the loading space.

[0045] Limit blocks 32 are set at the two entrances and exits 12. The pallet 200 located in the loading space is limited by the limit blocks 32 so that the pallet 200 remains fixed when located in the loading space. The rotation of the limit blocks 32 is controlled by the weight of the pallet 200 and the limit drive 2124. No manual operation is required, and the requirements of automated loading and unloading can be met.

[0046] In one embodiment, each inlet and outlet 12 is provided with two limit assemblies 30 , the two limit assemblies 30 at the same inlet and outlet 12 are spaced apart along the Y direction, and the two limit blocks 32 of the two limit assemblies 30 at the same inlet and outlet 12 are connected by a linkage rod 33 .

[0047] like Figure 4 As shown, two limit assemblies 30 are provided at each inlet and outlet 12, and the four limit assemblies 30 abut against the tray 200 from both sides of the tray 200, further improving the stability of the tray 200. The two limit blocks 32 on the same side are connected by a linkage rod 33, so that the two limit blocks 32 on the same side rotate synchronously; the two limit blocks 32 on different sides are connected by a transmission rod, and the limit driving member 2124 is provided on the transmission rod, and the transmission rod keeps the limit blocks 32 on different sides rotating synchronously. The limit driving member 2124 can simultaneously drive the two limit blocks 32 connected thereto to reset, and drive the other two limit blocks 32 to reset under the action of the two transmission rods on both sides, so that the four limit blocks 32 have consistency when working.

[0048] In one embodiment, a traction assembly 40 is provided on both sides of the chassis 10 along the Y direction, and the traction assembly 40 includes two traction rods 41, one end of each traction rod 41 is hinged to the chassis 10 to form a hinged end 411, and the other end forms a free end 412, and the hinged end 411 and the free end 412 of the two traction rods 41 in the same traction assembly 40 are arranged in opposite directions; the two traction rods 41 of one traction assembly 40 are arranged opposite to the two traction rods 41 of the other traction assembly 40, and the hinged end 411 and the free end 412 of the two traction rods 41 arranged opposite to each other are arranged in opposite directions.

[0049] like Figure 2 As shown, a traction assembly 40 is provided on both the front and rear sides of the chassis 10, and two traction rods 41 in the traction assembly 40 on the same side are arranged at intervals in the vertical direction, and the two hinged ends 411 of the two traction rods 41 are respectively located at the two ends along the X direction, so that the free end 412 of each traction rod 41 can rotate relative to the hinged end 411. The two traction rods 41 located on the front side of the chassis 10 are respectively arranged opposite to the two traction rods 41 located on the rear side of the chassis 10, and the traction rod 41 located on the upper side of the front side of the chassis 10 is arranged in the opposite direction to the traction rod 41 located on the upper side of the rear side of the chassis 10, and the traction rod 41 located on the lower side of the front side of the chassis 10 is also arranged in the opposite direction to the traction rod 41 located on the lower side of the rear side of the chassis 10.

[0050] When a plurality of transport trolleys 100 are arranged side by side, any two adjacent transport trolleys 100 are connected by two traction assemblies 40 on the front and rear sides thereof, and the plurality of transport trolleys 100 are connected to each other to form a row. When a row of transport trolleys 100 are running normally, the two traction rods 41 between two adjacent transport trolleys 100 cross each other, which can shorten the connection gap between the transport trolleys 100; when a row of transport trolleys 100 turns, the transport trolley 100 located at the front turns and drives one of the traction rods 41 to rotate along its hinged end 411, and the other traction assembly 40 remains fixed, so that the transport trolley 100 located at the front completes the turn and forms a turning angle with the transport trolley 100 at the rear. The two traction rods 41 in the traction assembly 40 are arranged in opposite directions, so that the two transport trolleys 100 connected to each other can have a larger turning angle when turning, so that the row of transport trolleys 100 has a smaller turning radius.

[0051] In one embodiment, hinge seats 42 are provided at positions corresponding to the hinge ends 411 on both sides of the chassis 10 along the Y direction, and a hinge shaft 43 extending along the Z direction is provided on the hinge seat 42. The hinge end 411 and the free end 412 of the traction rod 41 are respectively provided with a first axial hole and a second axial hole. The hinge end 411 of the traction rod 41 is hingedly connected with the corresponding hinge shaft 43 of the hinge seat 42 through the first axial hole, and the free end 412 of the traction rod 41 can rotate relative to the hinge end 411, and the free end 412 of the traction rod 41 can also be hingedly connected with the hinge shaft 43 of the hinge seat 42 at the corresponding position on another transport trolley 100 through the second axial hole.

[0052] It can be understood that, through the cooperation between the shaft hole and the hinge shaft 43, the hinge end 411 of the traction rod 41 is hinged on the hinge seat 42, and the free end 412 of the traction rod 41 is connected to the hinge end 411 of the corresponding traction rod 41 on the other transport trolley 100. When the transport trolleys 100 connected to each other travel in a straight line, the two corresponding traction rods 41 overlap each other and extend in the left and right directions; when the transport trolley 100 on the front side turns, the two free ends 412 on the transport trolley 100 on the rear side rotate with the rotation of the transport trolley 100 on the front side. The setting of the hinge seat 42 and the hinge shaft 43 enables the traction rod 41 to rotate at a large angle in the horizontal direction, so that the two transport trolleys 100 connected to each other have a larger turning angle, and thus have a smaller turning radius.

[0053] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A transport trolley, characterized in that: include: A chassis, a bracket is installed on the chassis, the chassis and the bracket enclose a loading space, and two entrances and exits are respectively formed on both sides of the loading space along the X direction for pallets to enter and exit the loading space; A conveying mechanism, wherein the conveying mechanism comprises a conveying structure and a conveyor belt, wherein the conveying structure and the conveyor belt are spaced apart along the Y direction; the conveyor belt extends along the X direction, and the conveyor belt is used to support the pallet and cooperate with the pallet in rolling manner; the conveying structure comprises an X-direction module and a lifting module, and the lifting module comprises a mounting seat, a connecting plate, a lifting rod and a driving member, wherein the connecting plate connects the X-direction module and the mounting seat, the lifting rod is vertically arranged on the mounting seat, and the driving member is installed on the mounting seat, and the driving member is used to drive the lifting rod to rise or fall along the Z direction so that the lifting rod abuts against or disengages from the bottom of the pallet; the X-direction module is used to drive the connecting plate to move along the X direction, and when the lifting rod abuts against the pallet, the pallet is driven to slide along the X direction through the mounting seat.

2. The transport trolley according to claim 1, characterized in that: The mounting seat includes a base and a mounting plate, the mounting plate is installed on the top of the base and connected to the connecting plate, the driving member is installed on the base and located below the mounting plate, and a slide rail extending along the Z direction is provided on the mounting seat, the slide rail passes through the mounting plate and extends upward, and the lifting rod passes through the mounting plate and extends upward and slidably cooperates with the slide rail.

3. The transport trolley according to claim 2, characterized in that: The driving member is a rotating driving member, the output shaft of the rotating driving member is connected with a gear, and the bottom of the lifting rod is formed with a tooth pattern that meshes with the gear.

4. The transport trolley according to claim 1, characterized in that: There are multiple lifting modules, and the multiple lifting modules are arranged at intervals along the X direction. The connecting plates of each lifting module are connected to the X-direction module.

5. The transport trolley according to claim 1, characterized in that: The conveyor belt includes a guide plate installed on the chassis, the guide plate encloses a conveying groove extending along the X direction, a plurality of rollers spaced apart along the X direction are installed in the conveying groove, and the top of each roller extends out of the conveying groove and rolls with the pallet.

6. The transport trolley according to claim 5, characterized in that: The number of the conveyor belts is two, and the two guide plates in the two conveyor belts are arranged at intervals on both sides of the transport structure along the Y direction.

7. The transport trolley according to any one of claims 1 to 6, characterized in that: A limit assembly is provided on the chassis at a position corresponding to each of the inlets and outlets, and the limit assembly includes a limit seat, a limit block and a limit drive component. The limit seat is mounted on the chassis, and the limit block is rotatably mounted on the limit seat; the limit drive component is used to drive the limit block to rotate upward until it abuts against the side of the pallet located in the loading space; when the pallet enters and exits the loading space through the inlets and outlets, the limit block is pressed downward to cause the limit block to rotate downward to the bottom of the pallet.

8. The transport trolley according to claim 7, characterized in that: Each of the inlets and outlets is provided with two limit assemblies, the two limit assemblies at the same inlet and outlet are spaced apart along the Y direction, and the two limit blocks of the two limit assemblies at the same inlet and outlet are connected by a linkage rod.

9. The transport trolley according to any one of claims 1 to 6, characterized in that: The chassis is provided with traction assemblies on both sides along the Y direction, and the traction assemblies include two traction rods, one end of each traction rod is hinged to the chassis to form a hinged end, and the other end forms a free end, and the hinged end and the free end of the two traction rods in the same traction assembly are arranged in opposite directions; the two traction rods of one traction assembly are arranged opposite to the two traction rods of the other traction assembly, and the hinged end and the free end of the two traction rods arranged opposite to each other are arranged opposite to each other.

10. The transport trolley according to claim 9, characterized in that: The chassis is provided with hinge seats at positions corresponding to the hinge ends on both sides along the Y direction, and the hinge seats are provided with hinge shafts extending along the Z direction. The hinge end and the free end of the traction rod are respectively provided with a first axial hole and a second axial hole, and the hinge end of the traction rod is hingedly connected with the corresponding hinge shaft of the hinge seat through the first axial hole, and the free end of the traction rod can rotate relative to the hinge end, and the free end of the traction rod can also be hingedly connected with the hinge shaft of the hinge seat at the corresponding position on the other transport trolley through the second axial hole.

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