A logistics carriage convenient for loading

Abstract

The present invention relates to a logistics carriage that is convenient for loading, which belongs to the field of logistics loading equipment, and includes a carriage with an opening at the rear end, wherein two support plates arranged horizontally and arranged up and down are arranged in the carriage, and the two support plates are arranged on the inner side wall of the carriage movably forward and backward through a sliding drive assembly, wherein the lower support plate is arranged at the bottom of the carriage, and the upper support plate is located in the middle of the carriage; the two support plates separate the carriage into two accommodating spaces arranged up and down, and the accommodating spaces form an unloading port at the opening of the carriage, and the rear end of the carriage is provided with an openable and closable door structure for closing the unloading port corresponding to the unloading port. The present invention can effectively improve the loading efficiency of packages, and accordingly, can effectively improve the logistics speed.

Description

Technical Field

[0001] The invention relates to the field of logistics loading equipment, and in particular to a logistics carriage which is convenient for loading. Background Art

[0002] Truck transportation is an indispensable part of the logistics transportation process, and undertakes the transportation task from the production site to the hands of consumers, or from one distribution center to another destination. As a ground transportation tool, it has the characteristics of flexibility and adaptability, and can complete the transportation of goods under different road conditions. Whether it is urban distribution, long-distance transportation, or short-distance point-to-point distribution, trucks play a vital role.

[0003] Now, for ordinary consumers, the logistics transportation used for express parcel transportation generally adopts vans. The compartment for loading parcels is a closed compartment with only one opening at the rear end. In the process of loading the parcels into the compartment, someone is required to stand in the compartment to receive and stack the parcels one by one in the compartment. The whole process is rather cumbersome and time-consuming, which is not conducive to improving the logistics speed.

[0004] Based on this, the present invention provides a logistics carriage that is easy to load. By arranging a load-bearing structure that can extend out of the carriage in the carriage, the convenience of the package loading process and the speed of package loading are improved, thereby achieving the purpose of improving logistics speed. Summary of the invention

[0005] Based on this, it is necessary to provide a logistics carriage that is convenient for loading, including a carriage with an opening at the rear end, wherein two support plates are horizontally arranged and arranged up and down in the carriage, and the two support plates are movably arranged on the inner side wall of the carriage forward and backward through a sliding drive assembly, and the lower support plate of the two support plates is arranged at the bottom of the carriage, and the upper support plate is located in the middle of the carriage; the two support plates divide the carriage into two accommodating spaces arranged up and down, and the accommodating spaces form an unloading port at the opening of the carriage, and a door structure that can be opened and closed for closing the unloading port is provided at the rear end of the carriage corresponding to the unloading port.

[0006] The present invention needs to be installed on a truck for use and used as a truck compartment, wherein a support plate arranged in the compartment is used to carry packages, and the support plate also divides the internal space of the compartment into two accommodating spaces, which are respectively the accommodating space between the two support plates and the accommodating space between the upper support plate and the top of the compartment, and both of the two accommodating spaces are used to accommodate packages.

[0007] In the present invention, two support plates are arranged in the compartment so as to be movable forward and backward by means of a sliding drive assembly. Therefore, when loading parcels, the support plates are moved to extend out of the compartment by means of the sliding drive assembly, and the parcels can be stacked outside the compartment. After the parcels are stacked on the support plates, the parcels can be stored in the storage space in the compartment by moving the support plates forward, and the loading of the parcels is completed. After the loading of the parcels is completed, the storage space can be closed by closing the door structure at the unloading port, and the goods can be transported. It can be seen that compared with the stacking of goods in the compartment, the present invention does not require the loading personnel to enter the compartment to operate, and the parcels can be directly stacked on the support plates outside the compartment by means of tools such as forklifts, which can effectively improve the loading efficiency of the parcels, and accordingly, can effectively improve the logistics speed.

[0008] In addition, when unloading the current express logistics trucks, a hydraulic flap unloading machine is usually used for operation, and the process is: drive the truck onto the flap, lift and tilt the truck through the flap, so that the packages in the car body are dumped out. In this process, since the car body has a high height, there is a possibility of damaging the package and the items in the package during the dumping process. In the present invention, since the two support plates separate the car body into two upper and lower accommodating spaces, during the process of loading the package, the heavier package can be loaded in the lower accommodating space, and the lighter package can be loaded in the upper accommodating space. In this way, when dumping the package, the possibility of damaging the package and the items in the package can be effectively reduced.

[0009] Furthermore, the door structure includes a mounting shaft arranged at the rear side of the support plate, the mounting shaft is arranged horizontally and rotatably arranged on the box body, the door structure also includes a baffle plate whose lower end is fixedly connected to the mounting shaft, the baffle plate is arranged vertically and fits the rear end of the box body and covers the unloading port; an opening and closing device for driving the baffle plate to reciprocate around the mounting shaft is also arranged on the outer wall of the box body corresponding to the baffle plate, the baffle plate has two working positions driven by the opening and closing device, namely the first working position and the second working position, when the baffle plate is located at the first working position, it is in a vertical state and covers the unloading port, when the baffle plate is located at the second working position, it is in a horizontal state and the upper surface of the baffle plate is flush with the lower surface of the support plate. Wherein, the mounting shaft is rotatably mounted on the box body through a mounting seat fixedly arranged on the outer wall of the box body.

[0010] In the present invention, the opening and closing device is used to push the baffle to swing around the axis of the mounting shaft, thereby realizing the opening and closing of the baffle at the unloading port. Specifically, the opening and closing device is used to push the baffle to swing back and forth between the first working station and the second working station. When the baffle is located at the first working station, the unloading port will be closed, and the door structure is in a closed state. When the baffle is located at the second working station, the unloading port will be opened, and the door structure is in an open state.

[0011] In the present invention, when the baffle is located at the second working station, its upper surface is in a horizontal state and is arranged flush with the lower surface of the support plate. Therefore, in the process of loading packages, after the support plate extends out of the compartment, the baffle located at the second working station will fit against the lower surface of the support plate, which can play the effect of supporting the support plate, that is, the baffle can assist the sliding drive assembly in supporting the support plate, which can reduce the force on the sliding drive assembly and protect the sliding drive assembly. In addition, the baffle can also increase the supporting area of ​​the compartment for the support plate and reduce the length of the suspended part of the support plate, thereby reducing the structural strength requirements for the support plate while ensuring the strength and stability of the support structure of the support plate, thereby reducing the production cost of the support plate.

[0012] In addition, because the baffle is located at the second working station when the door structure is opened, the upper surface of the baffle is flush with the lower surface of the support plate. Therefore, when unloading packages, after the truck is tilted by the hydraulic flip plate unloader, the dumped packages can slide on the tilted baffle for a distance. In this way, the falling height of the package can be reduced during the dumping process, thereby further reducing the possibility of the package and the items in the package being damaged.

[0013] Furthermore, the opening and closing device includes two connecting rods arranged on the left and right sides of the baffle, one end of the connecting rod is rotatably arranged on the baffle, and the other end of the connecting rod forms a connecting end; the opening and closing device also includes two hydraulic rods arranged on the left and right sides of the compartment and corresponding to the connecting rods, the hydraulic rods are located above the corresponding connecting rods, the cylinders of the hydraulic rods are rotatably arranged on the outer side wall of the compartment, and the piston rods of the hydraulic rods are fixedly connected to the connecting ends of the corresponding connecting rods. Among them, by arranging an on-board hydraulic system on the truck where the compartment is located, a driving force can be provided for the hydraulic rods.

[0014] In the present invention, the opening and closing device pushes and pulls the baffle through the extension and retraction of the hydraulic rod, thereby closing the door structure. Preferably, the opening and closing devices on the left and right sides of the baffle are symmetrically arranged, and the baffle can swing through synchronous movement, thereby closing the door structure.

[0015] Furthermore, a support strip is provided in the body corresponding to the support plate, the support strip is provided along the left-right direction and the two ends of the support strip are respectively fixedly provided on the inner side wall of the body; the support strip is located at the opening of the body, and is located below the corresponding support plate and is provided in close contact with the support plate; at least two vertically arranged threaded mounting holes are also provided on the upper surface of the support strip, and the threaded mounting holes are arranged along the left-right direction, and a first stepped hole that passes through the threaded mounting hole and is larger at the top and smaller at the bottom is provided on the support plate corresponding to the threaded mounting hole, and the first stepped hole is coaxially arranged with the corresponding threaded mounting hole.

[0016] In the present invention, the support plate and the vehicle body can be fixed by screwing the fixing bolts into the threaded mounting holes and the first stepped holes, which can prevent the support plate from shaking during transportation, wherein the upper larger portion of the first stepped holes is used to accommodate the bolt heads of the fixing bolts, so that the upper surface of the support plate can remain flat. In addition, the support strip is attached to the lower surface of the support plate, which can also assist the sliding drive assembly in supporting the support plate, and can also reduce the force on the sliding drive assembly and protect the sliding drive assembly.

[0017] Furthermore, the thickness of the support strip is the same as the thickness of the baffle, and a clamping portion is provided at the front position of the lower surface of the support plate corresponding to the support strip, and the clamping portion includes a horizontally arranged bottom plate, and the front end of the bottom plate is fixedly connected to the support plate via a vertically arranged connecting plate, and the height of the gap between the bottom plate and the support plate is the same as the thickness of the support strip, forming a clamping gap for clamping with the support strip; when the connecting plate and the support strip are abutted, the bottom plate extends out of the compartment and extends to the bottom of the baffle.

[0018] In the present invention, when the sliding drive assembly drives the support plate to extend out of the car body, the clamping part needs to be clamped on the support plate. At this time, the support plate moves backward by a preset distance L and moves backward to the correct position. Specifically, when the clamping part is clamped on the support bar, the upper surface of the bottom plate fits on the lower surface of the support plate, and the rear side wall of the connecting plate is connected to the front side wall of the support bar. At this time, the support part cannot continue to extend outside the car body, and the support bar limits the support plate, which can prevent the support plate from sliding off the car body. At the same time, since the bottom plate in the clamping part fits on the support bar, the clamping part can also assist the sliding drive assembly in supporting the support plate, and can also reduce the force on the sliding drive assembly and protect the sliding drive assembly.

[0019] Furthermore, a second stepped hole is provided on the support plate corresponding to the threaded mounting hole and passes through the second stepped hole, which is larger at the top and smaller at the bottom. When the connecting plate and the support bar are against each other, the second stepped hole is coaxially arranged with the corresponding threaded mounting hole.

[0020] In the present invention, after the support plate is moved back to its proper position, the second stepped hole therein will be coaxial with the threaded mounting hole on the support bar. At this time, by screwing fixing bolts into the threaded mounting hole and the second stepped hole, the support plate and the compartment can be fixed to prevent the support plate from sliding during the process of loading packages. The larger upper portion of the second stepped hole is used to accommodate the bolt head of the fixing bolt so that the upper surface of the support plate can remain flat.

[0021] Furthermore, the sliding drive assembly includes sliding rails arranged on the left and right sides of the support plate, the sliding rails include a plurality of roller groups arranged along the front and rear directions, the roller group includes two rollers arranged up and down and rotatably arranged on the inner side wall of the body, the width of the gap between the two rollers in the roller group is the same as the thickness of the support plate, forming an accommodating gap, and the left and right side edges of the support plate are embedded in the accommodating gap; the sliding drive assembly also includes a driving device connected to the roller drive below the roller group to drive it to rotate.

[0022] In the present invention, the edge of the support plate is embedded in the accommodating gap in the roller group, and at the same time abuts against the upper and lower rollers in the roller group. The support plate can be driven by the rotation of the rollers in the roller group to achieve the back and forth reciprocating movement of the support plate.

[0023] In the present invention, the driving assembly can be a driving motor disposed inside and outside the box, and the driving motor can be connected to the rollers in the lower part of the roller group through a belt transmission structure, a chain transmission structure, etc., so as to drive the corresponding rollers to rotate, thereby realizing the back and forth reciprocating movement of the support plate. Specifically, when the belt transmission structure and the chain transmission structure are used for driving connection, a pulley and a sprocket need to be correspondingly disposed on the shaft where the rollers are located.

[0024] In addition, the driving connection between the driving device and the upper roller in the roller group can also realize the driving of the support plate. However, after the support plate is loaded with goods, if the upper roller is used as a driving wheel, the probability of the roller slipping relative to the support plate will increase. Therefore, it is preferred to use the lower roller as the driving wheel.

[0025] Furthermore, a support rod is fixedly provided on the inner side wall of the compartment corresponding to the roller group, the support rod is vertically arranged, and the rollers in the roller group are rotatably arranged on the corresponding support rod; the edge of the support plate is attached to the support rod and is slidably matched with the support rod.

[0026] In the present invention, the support rod is used as the mounting structure of the roller, and the support rod is fixedly arranged on the carriage, and can also be used to increase the strength of the carriage. In addition, by making the support rod fit with the support plate, the support plate can be guided, which can effectively reduce the fitting area between the side of the support plate and the carriage, compared with the support plate directly fitting with the inner wall of the carriage for guidance, thereby effectively reducing the friction of the guide structure on the support plate.

[0027] Furthermore, a photoelectric sensor is also provided on the compartment body, including a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively fixed on the two connecting rods and located on the side surface of the connecting rod facing the baffle; when the baffle is located at the second working station, the horizontal height of the receiving end and the transmitting end of the photoelectric sensor is higher than the upper surface of the support plate.

[0028] In the present invention, the receiving end and the transmitting end arranged on the two connecting rods constitute a photoelectric sensor, which can be used to detect whether there is a package in the space between the receiving end and the transmitting end, that is, the photoelectric sensor can detect whether a package is placed on the support plate part located between the transmitting end and the receiving end, and in combination with the corresponding package stacking method, the stacking position of the package on the support plate can be detected.

[0029] The method for stacking packages includes the following steps: Step S1: The opening and closing device opens the baffle of the door structure so that the baffle rotates to the second working position: Step S2: The sliding drive assembly drives the support plate to move backward a preset distance L, so that the support plate moves to extend out of the compartment; Step S3, stacking the packages on the support plate in order from front to back; Step S4: After the photoelectric sensor detects the package, the sliding drive assembly controls the support plate to move forward a preset distance a, where a<L and L is an integer multiple of a; preferably, the support plate moves forward 5 seconds after the photoelectric sensor detects the package.

[0030] Step S5, detecting the total distance b that the support plate moves forward, if b<L, proceeding to step S6, if b=L, the support plate does not move forward any more, and proceeding to step S8; S6, the photoelectric sensor continues to detect the package. If the package is still detected, it continues to move a distance, and repeats this process until the package is no longer detected. S7, continue to stack the packages on the support plate in the order from front to back until the photoelectric sensor detects the package, then proceed to step S4; S8. Continue to stack the packages until the support plate is full, then close the door structure to complete the loading of the packages.

[0031] Among them, a programmable logic controller that is communicatively connected to the opening and closing device, the driving device and the photoelectric sensor needs to be set on the car body to realize corresponding control of the opening and closing device, the driving device and the photoelectric sensor.

[0032] In addition, in the present invention, when the door structure is closed, the hydraulic rod will pull the baffle cover to close the unloading port through the connecting rod. At this time, the connecting rod will be located on the left and right sides of the compartment, and the transmitting end and the receiving end located on the connecting rod will be blocked by the compartment. It can be seen that the presence of the photoelectric sensor can also play a technical effect of detecting whether the door structure is closed.

[0033] Furthermore, it also includes a latch structure, which includes a latch seat arranged at the rear end of the compartment body and a latch rod arranged on the baffle.

[0034] In the present invention, the latch seat at the rear end of the box body and the latch rod on the baffle plate form a latch structure for fixedly connecting the baffle plate and the box body.

[0035] The principle and effect of the present invention are further described below in combination with the above technical solutions and the accompanying drawings: In the present invention, two support plates are arranged in the compartment so as to be movable forward and backward by means of a sliding drive assembly. Therefore, when loading parcels, the support plates are moved to extend out of the compartment by means of the sliding drive assembly, and the parcels can be stacked outside the compartment. After the parcels are stacked on the support plates, the parcels can be stored in the storage space in the compartment by moving the support plates forward, and the loading of the parcels is completed. After the loading of the parcels is completed, the storage space can be closed by closing the door structure at the unloading port, and the goods can be transported. It can be seen that compared with the stacking of goods in the compartment, the present invention does not require the loading personnel to enter the compartment to operate, and the parcels can be directly stacked on the support plates outside the compartment by means of tools such as forklifts, which can effectively improve the loading efficiency of the parcels, and accordingly, can effectively improve the logistics speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic diagram of the left side structure of a logistics compartment that is convenient for loading according to an embodiment of the present invention; Figure 2 for Figure 1 A partial enlarged view: Figure 3 This is a schematic diagram of the structure of the door structure of the logistics compartment for facilitating loading according to an embodiment of the present invention when it is open; Figure 4 It is a schematic diagram of the cross-sectional structure of the logistics compartment for facilitating loading as viewed from the left according to an embodiment of the present invention; Figure 5 for Figure 4 A partial enlarged view of Figure 6This is a schematic cross-sectional structure diagram of a door structure of a logistics compartment for facilitating loading according to an embodiment of the present invention when it is opened; Figure 7 for Figure 6 A partial enlarged view of Figure 8 This is a schematic cross-sectional structure diagram of a supporting plate of a logistics compartment for facilitating loading according to an embodiment of the present invention when extended; Fig. 9 for Figure 8 A partial enlarged view of . Reference numerals

[0037] 1-carriage, 11-latch seat, 12-mounting seat, 13-support rod, 131-roller, 14-support bar, 141-threaded mounting hole, 15-hydraulic rod, 21-baffle, 211-connecting rod, 22-mounting shaft, 3-support plate, 311-bottom plate, 312-connecting plate, 32-first step hole, 33-second step hole, 4-photoelectric sensor. DETAILED DESCRIPTION

[0038] In order to facilitate understanding by those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments: like Figure 1-9 A logistics carriage convenient for loading goods comprises a carriage 1 with an opening at the rear end, wherein two support plates 3 arranged horizontally and up and down are arranged in the carriage 1, and the two support plates 3 are arranged on the inner side wall of the carriage 1 movably forward and backward through a sliding drive assembly, wherein the lower support plate 3 is arranged at the bottom of the carriage 1, and the upper support plate 3 is located in the middle of the carriage 1; the two support plates 3 divide the carriage 1 into two accommodating spaces arranged up and down, and the accommodating spaces form an unloading port at the opening of the carriage 1, and an openable and closable door structure for closing the unloading port is arranged at the rear end of the carriage 1 corresponding to the unloading port.

[0039] The present invention needs to be installed on a truck and used as a truck compartment, wherein the support plate 3 arranged in the compartment 1 is used to carry packages, and the support plate 3 also divides the internal space of the compartment 1 into two accommodating spaces. The two accommodating spaces are respectively the accommodating space between the two support plates 3 and the accommodating space between the upper support plate 3 and the top of the compartment 1, and the two accommodating spaces are both used to accommodate packages.

[0040] In the present invention, two support plates 3 are arranged in the compartment 1 so as to be movable forward and backward by means of a sliding drive assembly. Therefore, when loading parcels, the support plates 3 are moved to extend out of the compartment 1 by means of the sliding drive assembly, and the parcels can be stacked outside the compartment 1. After the parcels are stacked on the support plates 3, the parcels can be stored in the storage space in the compartment 1 by moving the support plates 3 forward, and the loading of the parcels is completed. After the loading of the parcels is completed, the storage space can be closed by closing the door structure at the unloading port, and the goods can be transported. It can be seen that, compared with the stacking of goods in the compartment 1, the present invention does not require the loading personnel to enter the compartment to operate, and the parcels can be directly stacked on the support plates 3 outside the compartment 1 by means of tools such as forklifts, which can effectively improve the loading efficiency of the parcels, and accordingly, can effectively improve the logistics speed.

[0041] In addition, when unloading the current express logistics trucks, a hydraulic flap unloading machine is usually used for operation, and the process is: drive the truck onto the flap, lift and tilt the truck through the flap, so that the packages in the car body are dumped out. In this process, since the car body has a high height, there is a possibility of damaging the package and the items in the package during the dumping process. In the present invention, since the two support plates 3 separate the compartment 1 into two upper and lower arranged accommodating spaces, therefore, in the process of loading the package, the heavier package can be loaded in the lower accommodating space, and the lighter package can be loaded in the upper accommodating space, so that when dumping the package, the possibility of damaging the package and the items in the package can be effectively reduced.

[0042] In one embodiment, the door structure includes a mounting shaft 22 arranged at the rear side of the support plate 3, the mounting shaft 22 is arranged horizontally and rotatably arranged on the box body 1, and the door structure also includes a baffle 21 whose lower end is fixedly connected to the mounting shaft 22, the baffle 21 is arranged vertically and fits the rear end of the box body 1, and covers the unloading port; an opening and closing device for driving the baffle 21 to reciprocate around the mounting shaft 22 is also arranged on the outer wall of the box body 1 corresponding to the baffle 21, and the baffle 21 has two working positions driven by the opening and closing device, namely the first working position and the second working position, when the baffle 21 is located at the first working position, it is in a vertical state and covers the unloading port, and when the baffle 21 is located at the second working position, it is in a horizontal state and the upper surface of the baffle 21 is flush with the lower surface of the support plate 3. Wherein, the mounting shaft 22 is rotatably mounted on the box body 1 through a mounting seat 12 fixedly arranged on the outer wall of the box body 1.

[0043] In this embodiment, the opening and closing device is used to push the baffle 21 to swing around the axis of the mounting shaft 22, thereby realizing the opening and closing of the baffle 21 at the unloading port. Specifically, the opening and closing device is used to push the baffle 21 to swing back and forth between the first working station and the second working station. When the baffle 21 is located at the first working station, the unloading port will be closed, and the door structure is in a closed state. When the baffle 21 is located at the second working station, the unloading port will be opened, and the door structure is in an open state.

[0044] In this embodiment, when the baffle 21 is located at the second working station, its upper surface is in a horizontal state and is arranged flush with the lower surface of the support plate 3. Therefore, in the process of loading the package, after the support plate 3 extends out of the compartment 1, the baffle 21 located at the second working station will be attached to the lower surface of the support plate 3, which can play the effect of supporting the support plate 3, that is, the baffle 21 can assist the sliding drive component to support the support plate 3, which can reduce the force on the sliding drive component and protect the sliding drive component. In addition, the baffle 21 can also increase the supporting area of ​​the compartment 1 for the support plate 3 and reduce the length of the suspended part of the support plate 3, so as to reduce the structural strength requirements of the support plate 3 while ensuring the strength and stability of the supporting structure of the support plate 3, thereby reducing the production cost of the support plate 3.

[0045] In addition, because the baffle 21 is located at the second working station when the door structure is opened, the upper surface of the baffle 21 is flush with the lower surface of the support plate 3. Therefore, when unloading packages, after the truck is tilted by the hydraulic flip unloader, the dumped packages can slide on the tilted baffle 21 for a distance. In this way, the falling height of the package can be reduced during the dumping process, thereby further reducing the possibility of the package and the items in the package being damaged.

[0046] In one embodiment, the opening and closing device includes two connecting rods 211 arranged on the left and right sides of the baffle 21, one end of the connecting rod 211 is rotatably arranged on the baffle 21, and the other end of the connecting rod 211 forms a connecting end; the opening and closing device also includes two hydraulic rods 15 arranged on the left and right sides of the compartment 1 and corresponding to the connecting rods 211, the hydraulic rods 15 are located above the corresponding connecting rods 211, the cylinders of the hydraulic rods 15 are rotatably arranged on the outer side wall of the compartment 1, and the piston rods of the hydraulic rods 15 are fixedly connected to the connecting ends of the corresponding connecting rods 211. Among them, by arranging a vehicle-mounted hydraulic system on the truck where the compartment is located, a driving force can be provided for the hydraulic rods 15.

[0047] In this embodiment, the opening and closing device pushes and pulls the baffle 21 through the extension and retraction of the hydraulic rod 15, thereby closing the door structure. Preferably, the opening and closing devices on the left and right sides of the baffle 21 are symmetrically arranged, and the baffle 21 can be swung through synchronous movement, thereby closing the door structure.

[0048] In one embodiment, a support bar 14 is provided in the compartment 1 corresponding to the support plate 3, the support bar 14 is provided along the left-right direction and the two ends of the support bar 14 are respectively fixedly provided on the inner side wall of the compartment 1; the support bar 14 is located at the opening of the compartment 1, and is located below the corresponding support plate 3 and is provided in close contact with the support plate 3; at least two vertically arranged threaded mounting holes 141 are also provided on the upper surface of the support bar 14, and the threaded mounting holes 141 are arranged along the left-right direction, and a first stepped hole 32 is provided on the support plate 3 corresponding to the threaded mounting hole 141, which passes through the support plate 3 and is larger at the top and smaller at the bottom, and the first stepped hole 32 is coaxially arranged with the corresponding threaded mounting hole 141.

[0049] In this embodiment, the fixing bolts are screwed into the threaded mounting holes 141 and the first stepped holes 32 to fix the support plate 3 to the car body 1, thereby preventing the support plate 3 from shaking during transportation, wherein the upper larger portion of the first stepped holes 32 is used to accommodate the bolt heads of the fixing bolts, so that the upper surface of the support plate 3 can remain flat. In addition, the support bar 14 is attached to the lower surface of the support plate 3, and can also assist the sliding drive assembly in supporting the support plate 3, and can also reduce the force on the sliding drive assembly and protect the sliding drive assembly.

[0050] In one embodiment, the thickness of the support bar 14 is the same as the thickness of the baffle 21, and a clamping portion is provided at the front position of the lower surface of the support plate 3 corresponding to the support bar 14, and the clamping portion includes a horizontally arranged bottom plate 311, and the front end of the bottom plate 311 is fixedly connected to the support plate 3 through a vertically arranged connecting plate 312, and the height of the gap between the bottom plate 311 and the support plate 3 is the same as the thickness of the support bar 14, forming a clamping gap for clamping with the support bar 14; when the connecting plate 312 is in contact with the support bar 14, the bottom plate 311 extends out of the compartment 1 and extends to the bottom of the baffle 21.

[0051] In this embodiment, when the sliding drive assembly drives the support plate 3 to extend out of the compartment 1, the clamping portion needs to be clamped on the support plate 3. At this time, the support plate 3 moves backward by a preset distance L and moves backward to the correct position. Specifically, when the clamping portion is clamped on the support bar 14, the upper surface of the bottom plate 311 is attached to the lower surface of the support plate 3, and the rear side wall of the connecting plate 312 is connected to the front side wall of the support bar 14. At this time, the support portion cannot continue to extend out of the compartment 1, and the support bar 14 limits the support plate 3, thereby preventing the support plate 3 from sliding off the compartment 1. At the same time, since the bottom plate 311 in the clamping portion is attached to the support bar 14, the clamping portion can also assist the sliding drive assembly in supporting the support plate 3, and can also play a role in reducing the force on the sliding drive assembly and protecting the sliding drive assembly.

[0052] In one embodiment, a second stepped hole 33 is provided on the support plate 3 corresponding to the threaded mounting hole 141 and passes through the support plate 3 and is larger at the top and smaller at the bottom. When the connecting plate 312 abuts against the support bar 14, the second stepped hole 33 is coaxially arranged with the corresponding threaded mounting hole 141.

[0053] In this embodiment, after the support plate 3 is moved back to its proper position, the second stepped hole 33 therein will be coaxial with the threaded mounting hole 141 on the support bar 14. At this time, by screwing fixing bolts into the threaded mounting hole 141 and the second stepped hole 33, the support plate 3 and the compartment 1 can be fixed to prevent the support plate 3 from sliding during the process of loading packages. The larger upper portion of the second stepped hole 33 is used to accommodate the bolt head of the fixing bolt so that the upper surface of the support plate 3 can remain flat.

[0054] In one embodiment, the sliding drive assembly includes sliding rails arranged on the left and right sides of the support plate 3, the sliding rails include a plurality of roller 131 groups arranged along the front-rear direction, the roller 131 group includes two rollers 131 arranged up and down and rotatably arranged on the inner wall of the compartment 1, the width of the gap between the two rollers 131 in the roller 131 group is the same as the thickness of the support plate 3, forming an accommodating gap, and the left and right side edges of the support plate 3 are embedded in the accommodating gap; the sliding drive assembly also includes a driving device connected to the roller 131 below the roller 131 group for driving it to rotate.

[0055] In this embodiment, the edge of the support plate 3 is embedded in the accommodating gap in the roller 131 group, and at the same time abuts against the upper and lower rollers 131 in the roller 131 group. By rotating the rollers 131 in the roller 131 group, the support plate 3 can be driven to achieve the back and forth reciprocating movement of the support plate 3.

[0056] In this embodiment, the driving assembly can be a driving motor arranged inside and outside the box body 1, and the driving motor can be connected to the lower roller 131 in the roller 131 group through a belt transmission structure, a chain transmission structure, etc., so as to drive the corresponding roller 131 to rotate, thereby realizing the back and forth reciprocating movement of the support plate 3. Specifically, when the belt transmission structure and the chain transmission structure are used for driving connection, a pulley and a sprocket need to be correspondingly arranged on the shaft where the roller 131 is located.

[0057] In addition, the driving connection between the driving device and the upper roller 131 in the roller 131 group can also realize the driving of the support plate 3. However, after the support plate 3 is loaded with goods, if the upper roller 131 is used as a driving wheel, the probability of the roller 131 slipping relative to the support plate 3 will increase. Therefore, it is preferred to use the lower roller 131 as the driving wheel.

[0058] In one embodiment, a support rod 13 is fixedly provided on the inner wall of the compartment 1 corresponding to the roller 131 group, the support rod 13 is vertically arranged, and the roller 131 in the roller 131 group is rotatably arranged on the corresponding support rod 13; the edge of the support plate 3 is attached to the support rod 13 and is slidably matched with the support rod 13.

[0059] In this embodiment, the support rod 13 is used as a mounting structure for the roller 131. At the same time, the support rod 13 is fixedly arranged on the carriage and can also be used to increase the strength of the carriage. In addition, by making the support rod 13 fit with the support plate 3, it can play a guiding role on the support plate 3. Compared with the support plate 3 directly fitting with the inner wall of the carriage 1 for guidance, the fitting area between the side of the support plate 3 and the carriage 1 can be effectively reduced, thereby effectively reducing the friction of the guide structure on the support plate 3.

[0060] In one embodiment, a photoelectric sensor 4 is further provided on the compartment 1, including a transmitting end and a receiving end, and the transmitting end and the receiving end are respectively fixed on the two connecting rods 211, and are located on one side of the connecting rod 211 facing the baffle 21; when the baffle 21 is located at the second working station, the horizontal heights of the receiving end and the transmitting end of the photoelectric sensor 4 are higher than the upper surface of the support plate 3.

[0061] In this embodiment, the receiving end and the transmitting end arranged on the two connecting rods 211 constitute a photoelectric sensor 4, which can be used to detect whether there is a package in the space between the receiving end and the transmitting end, that is, the photoelectric sensor 4 can detect whether a package is placed on the part of the support plate 3 located between the transmitting end and the receiving end. In combination with the corresponding package stacking method, the stacking position of the package on the support plate 3 can be detected.

[0062] The method for stacking packages includes the following steps: Step S1, the opening and closing device opens the baffle 21 of the door structure, so that the baffle 21 rotates to the second working position: Step S2, the sliding drive assembly drives the support plate 3 to move backward a preset distance L, so that the support plate 3 moves to extend out of the compartment 1; Step S3, stacking the packages on the support plate 3 in order from front to back; Step S4, after the photoelectric sensor 4 detects the package, the sliding drive assembly controls the support plate 3 to move forward a preset distance a, wherein a<L and L is an integer multiple of a; preferably, the support plate 3 is moved forward 5 seconds after the photoelectric sensor 4 detects the package.

[0063] Step S5, detecting the total distance b of the support plate 3 moving forward, if b<L, proceeding to step S6, if b=L, the support plate 3 no longer moves forward, and proceeding to step S8; S6, the photoelectric sensor 4 continues to detect the package. If the package is still detected, it continues to move a distance, and repeats this process until the package is no longer detected. S7, continue to stack the packages on the support plate 3 in the order from front to back until the photoelectric sensor 4 detects the package, then go to step S4; S8. Continue stacking the packages until the support plate 3 is fully stacked, then close the door structure to complete the loading of the packages.

[0064] Among them, a programmable logic controller that is communicatively connected with the opening and closing device, the driving device and the photoelectric sensor 4 needs to be provided on the compartment body 1 to realize corresponding control of the opening and closing device, the driving device and the photoelectric sensor 4.

[0065] In addition, in this embodiment, when the door structure is closed, the hydraulic rod 15 will pull the baffle 21 to cover the unloading port through the connecting rod 211. At this time, the connecting rod 211 will be located on the left and right sides of the compartment 1, and the transmitting end and the receiving end located on the connecting rod 211 will be blocked by the compartment 1. It can be seen that the presence of the photoelectric sensor 4 can also play a technical effect of detecting whether the door structure is closed.

[0066] One embodiment further includes a latch structure, which includes a latch seat 11 arranged at the rear end of the compartment 1 and a latch rod arranged on the baffle 21.

[0067] In this embodiment, the latch seat 11 at the rear end of the body 1 and the latch rod on the baffle 21 form a latch structure for fixing the baffle 21 and the body 1. The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A logistics carriage convenient for loading goods, comprising a carriage with an opening at the rear end, characterized in that: Two support plates are horizontally arranged and arranged up and down in the box body, and the two support plates are movably arranged on the inner side wall of the box body through a sliding drive assembly. Among the two support plates, the lower support plate is arranged at the bottom of the box body, and the upper support plate is located in the middle of the box body; the two support plates divide the box body into two accommodating spaces arranged up and down, and the accommodating spaces form an unloading port at the opening of the box body, and the rear end of the box body is provided with an openable and closable door structure corresponding to the unloading port for closing the unloading port.

2. A logistics compartment convenient for loading goods according to claim 1, characterized in that: The door structure includes a mounting shaft arranged on the rear side of the support plate, the mounting shaft is horizontally arranged and rotatably arranged on the compartment body, the door structure also includes a baffle plate whose lower end is fixedly connected to the mounting shaft, the baffle plate is vertically arranged and fits against the rear end of the compartment body and covers the unloading port; an opening and closing device for driving the baffle plate to reciprocate around the mounting shaft is also arranged on the outer side wall of the compartment body corresponding to the baffle plate, the baffle plate has two working stations driven by the opening and closing device, namely a first working station and a second working station, when the baffle plate is located at the first working station, it is in a vertical state and covers the unloading port, when the baffle plate is located at the second working station, it is in a horizontal state and the upper surface of the baffle plate is flush with the lower surface of the support plate.

3. A logistics compartment convenient for loading goods according to claim 2, characterized in that: The opening and closing device includes two connecting rods arranged on the left and right sides of the baffle, one end of the connecting rod is rotatably arranged on the baffle, and the other end of the connecting rod forms a connecting end; the opening and closing device also includes two hydraulic rods arranged on the left and right sides of the compartment and corresponding to the connecting rods, the hydraulic rods are located above the corresponding connecting rods, the cylinder bodies of the hydraulic rods are rotatably arranged on the outer side wall of the compartment, and the piston rods of the hydraulic rods are fixedly connected to the connecting ends of the corresponding connecting rods.

4. A logistics compartment convenient for loading goods according to claim 3, characterized in that: A support strip is provided in the body corresponding to the support plate, the support strip is provided along the left-right direction and the two ends of the support strip are respectively fixedly provided on the inner side wall of the body; the support strip is located at the opening of the body, and is located below the corresponding support plate and is provided in close contact with the support plate; at least two vertically arranged threaded mounting holes are also provided on the upper surface of the support strip, and the threaded mounting holes are arranged along the left-right direction, and a first stepped hole that passes through the threaded mounting hole and is larger at the top and smaller at the bottom is provided on the support plate corresponding to the threaded mounting hole, and the first stepped hole is coaxially arranged with the corresponding threaded mounting hole.

5. A logistics compartment convenient for loading goods according to claim 4, characterized in that: The thickness of the support strip is the same as that of the baffle, and a clamping portion is provided at the front position of the lower surface of the support plate corresponding to the support strip, and the clamping portion includes a horizontally arranged bottom plate, and the front end of the bottom plate is fixedly connected to the support plate through a vertically arranged connecting plate, and the height of the gap between the bottom plate and the support plate is the same as the thickness of the support strip, forming a clamping gap for clamping with the support strip; when the connecting plate and the support strip are abutted, the bottom plate extends out of the compartment and extends to the bottom of the baffle.

6. A logistics compartment convenient for loading goods according to claim 5, characterized in that: The support plate is provided with a second stepped hole corresponding to the threaded mounting hole, which passes through the support plate and is larger at the top and smaller at the bottom. When the connecting plate and the support bar are against each other, the second stepped hole is coaxially arranged with the corresponding threaded mounting hole.

7. A logistics compartment convenient for loading goods according to any one of claims 2 to 6, characterized in that: The sliding drive assembly includes sliding rails arranged on the left and right sides of the support plate, the sliding rails include a plurality of roller groups arranged along the front and rear directions, the roller group includes two rollers arranged up and down and rotatably arranged on the inner side wall of the compartment, the width of the gap between the two rollers in the roller group is the same as the thickness of the support plate, forming an accommodating gap, and the left and right side edges of the support plate are embedded in the accommodating gap; the sliding drive assembly also includes a driving device connected to the roller drive below the roller group to drive it to rotate.

8. A logistics compartment convenient for loading goods according to claim 7, characterized in that: A support rod is fixedly arranged on the inner side wall of the compartment body corresponding to the roller group, the support rod is vertically arranged, and the rollers in the roller group are rotatably arranged on the corresponding support rod; the edge of the support plate is attached to the support rod and is slidably matched with the support rod.

9. A logistics compartment convenient for loading goods according to claim 8, characterized in that: The box body is also provided with a photoelectric sensor, including a transmitting end and a receiving end, wherein the transmitting end and the receiving end are respectively fixedly provided on the two connecting rods and are located on a side surface of the connecting rod facing the baffle; When the baffle is located at the second working position, the horizontal heights of the receiving end and the transmitting end of the photoelectric sensor are higher than the upper surface of the support plate.

10. A logistics compartment convenient for loading goods according to claim 2, characterized in that: It also includes a latch structure, which includes a latch seat arranged at the rear end of the compartment body and a latch rod arranged on the baffle.

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