A multifunctional automatic loading and unloading equipment

Abstract

The present application relates to the technical field of loading and unloading equipment, and in particular to a multifunctional automatic loading and unloading equipment applicable to trucks, comprising a cargo pallet and a base plate, wherein grooves are symmetrically provided at the lower end of the cargo pallet, and a plurality of symmetrically provided sliding blocks are provided on the base plate, each group of sliding blocks corresponds to the groove, and each group of sliding blocks is provided with a lifter, and the lifter comprises a lifting strut arranged on the sliding block, a sliding groove is provided on the lifting strut, a lifting rod is slidably provided in the sliding groove, and accommodating grooves are symmetrically provided on both sides of the lifting rod, and a lifting plate is slidably provided in the accommodating groove; when loading goods, the present invention first places the cargo pallet loaded with goods on the base plate according to the size of the carriage, and after the loading vehicle arrives, aligns the chassis with the carriage and raises it to the corresponding height, and then lifts the cargo pallet through the lifting plate, and the lifting rod sends the cargo pallet loaded with goods into the carriage at one time, thereby completing the loading of the goods at one time to improve the loading efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of loading and unloading equipment, and in particular to a multifunctional automatic loading and unloading equipment suitable for vehicles. Background Art

[0002] Loading and unloading operations are key links in logistics and transportation, involving unloading or loading goods onto transport vehicles. Traditional loading and unloading methods mainly rely on manual operations, which are inefficient, labor-intensive, and prone to cargo damage and personnel safety accidents. Loading and unloading equipment is an indispensable component in modern logistics, warehousing and manufacturing industries. It is mainly used for loading and unloading operations of goods, aiming to improve loading and unloading efficiency, reduce labor costs, and ensure safety and reliability during operations.

[0003] For example, a loading and unloading device with publication number CN116513837A relates to the technical field of conveying equipment. The existing technology includes a transverse moving assembly, a palletizing assembly and a conveying assembly. The transverse moving assembly extends along a first direction, and the transverse moving assembly can extend into and out of the carriage along a second direction, the second direction being orthogonal to the first direction. The palletizing assembly is arranged on the transverse moving assembly and can move relative to the transverse moving assembly along the first direction under the drive of the transverse moving assembly. The conveying direction of the conveying assembly is the second direction, and the conveying assembly is connected to the transverse moving assembly; the palletizing assembly can move in the extension direction of the transverse moving assembly, so that the position of the palletizing assembly relative to the carriage is adjusted by the transverse moving assembly. The conveying assembly conveys the items to the palletizing assembly for palletizing and is located in the carriage. At the same time, the items in the carriage can be depalletized and conveyed out through the palletizing assembly in the carriage, without the need for transfer equipment, thereby saving space and time during the loading and unloading process.

[0004] However, the above existing technologies still have some defects when loading and unloading vehicle cargo:

[0005] In the above-mentioned prior art, when loading, the transverse movement component is first extended into the car body, and the items are conveyed to the depalletizing and stacking component for stacking through the conveying component. As the space in the car body is gradually filled with items, the transverse movement component gradually moves backward. In the actual application of vehicle cargo loading and unloading, this piece-by-piece processing method is not only time-consuming, but also requires frequent movement and position adjustment of equipment, resulting in low overall loading efficiency. Especially when handling a large amount of cargo, the stacking process will take up a lot of time, affecting the progress of the entire loading operation.

[0006] At the same time, after the goods produced in the factory are packaged, they are generally stacked on freight pallets, and the goods on the freight pallets are wrapped and fixed with stretch film. When loading, it is only necessary to use a forklift to put the freight pallet together with the goods on it into the vehicle compartment. However, the above-mentioned existing loading and unloading equipment design does not have the function of processing freight pallets. The transverse movement component and the depalletizing and stacking component cannot identify, clamp or transport complete freight pallets, and can only process individual goods one by one. This makes it impossible to fully utilize the advantages of pre-stacking, but instead increases loading time and labor costs.

[0007] Based on this, and in accordance with the above-mentioned viewpoints, there is still room for improvement in the existing technology for loading and unloading vehicle cargo. Summary of the Invention

[0008] In order to solve the above technical problems, the present application provides a multifunctional automatic loading and unloading device, which adopts the following technical solutions:

[0009] A multifunctional automatic loading and unloading device for trucks, comprising a cargo tray and a bottom plate, wherein grooves are symmetrically arranged at the lower end of the cargo tray, and a plurality of symmetrically arranged sliding blocks are arranged on the bottom plate, each group of sliding blocks corresponding to a groove, and each group of sliding blocks is provided with a lifter, which is used to lift the cargo tray through the groove;

[0010] The lifter includes a lifting support rod arranged on the sliding block, a sliding groove is opened on the lifting support rod, a lifting rod is slidably arranged in the sliding groove, and a receiving groove is symmetrically opened on both sides of the lifting rod, and a lifting plate is slidably arranged in the receiving groove;

[0011] The lifter also includes a plurality of interference grooves provided on the lifting plate, wherein the interference blocks located in the interference grooves are slidably provided in the receiving grooves, a connecting rod is commonly provided on the plurality of interference blocks, and a transmission screw connected to the connecting rod is rotatably provided in the receiving grooves;

[0012] A resisting inclined surface is provided on one side of the resisting groove, and a tightening inclined surface corresponding to the resisting surface is provided on the resisting block;

[0013] The lower end of the interference groove is provided with a card slot, and the upper end of the interference block is provided with a convex block corresponding to the card slot;

[0014] A transmission shaft is rotatably provided at the bottom of the sliding groove, and the transmission shaft is threadedly connected to the lifting rod;

[0015] When lifting the pallet through the groove, the transmission shaft arranged at the bottom of the sliding groove is driven to rotate. The rotating transmission shaft drives the lifting rod to move outward through the threaded connection with the lifting rod, and the lifting rod moving outward is inserted into the groove;

[0016] After that, the transmission screw arranged in the receiving groove is driven to rotate, and the rotating transmission screw drives the connecting rod to move through the threaded connection with the connecting rod. The moving connecting rod drives the resistance block to move together with the resistance block. The tight inclined surface provided on the resistance block corresponds to the resistance inclined surface provided on one side of the resistance groove, pushing the lifting plate to move upward to lift the pallet and keep the pallet away from the ground.

[0017] Then the drive shaft reverses, and the drive shaft drives it inward through the threaded connection with the lifting rod. At this time, the lifting plate will drive the lifted pallet to move together, so that the pallet moves to the bottom plate; thereby moving the pallet from the warehouse to the carriage or moving the goods from the carriage to the warehouse.

[0018] Preferably, a walker is provided at the lower end of the base plate;

[0019] The walker comprises a top plate, wherein cross rods which are symmetrically arranged between the top plate and the bottom plate and are rotatably connected to each other are arranged, and a lifting shaft is arranged between the cross rods on the same side, and the lifting shaft is threadedly connected to the cross rods.

[0020] Preferably, a plurality of through holes are opened on the bottom plate, support plates are symmetrically arranged on both sides of the through holes, sliding holes are symmetrically arranged on the support plates, sliding blocks are slidably arranged in the sliding holes, and a walking wheel is rotatably arranged between the two sliding blocks.

[0021] Preferably, a rotating shaft is rotatably provided on the bottom plate, a sliding connecting rod connected to the sliding block is slidably provided on the support plate, and the sliding connecting rod is threadedly connected to the rotating shaft.

[0022] Preferably, the sliding block is slidably connected to the base plate, an adjustment shaft is rotatably provided on the base plate through a bracket, and the adjustment shaft slides through several sliding blocks, and an adjustment knob is rotatably provided on the sliding block and is threadedly connected to the adjustment shaft.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. When loading goods, the present invention first places the cargo pallet loaded with goods on the bottom plate according to the size of the carriage. After the loading vehicle arrives, the bottom plate is aligned with the carriage and raised to the corresponding height. Then, the cargo pallet is lifted up by the lifting plate, and the lifting rod sends the cargo pallet loaded with goods into the carriage at one time, thereby completing the loading of goods at one time to improve loading efficiency.

[0025] 2. When unloading the cargo in the carriage, the present invention raises the lifting plate into the carriage to lift the cargo pallet, and moves the cargo pallet loaded with cargo to the bottom plate at one time through the lifting rod, thereby completing the cargo unloading at one time.

[0026] 3. The present invention rotates the adjusting knob on the sliding block, and the adjusting knob will move the sliding block on the base plate through the threaded connection with the adjusting shaft to change the position of each group of lifters, thereby adapting to the spacing of the grooves on different pallets, which not only improves the flexibility and adaptability of the loading and unloading equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the cargo tray of the present invention.

[0029] Figure 3 It is a structural schematic diagram between the base plate and the lifter of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the lifter of the present invention.

[0031] Figure 5 It is a schematic diagram of the structure between the lifting support rod and the lifting rod of the present invention.

[0032] Figure 6 It is a cross-sectional view of the lower lifter of the present invention.

[0033] Figure 7 It is a planar sectional view of the lifter of the present invention.

[0034] Figure 8 This invention Figure 7 A partial enlarged view of point A.

[0035] Figure 9 It is a structural schematic diagram of the walking device of the present invention.

[0036] Figure 10 It is a structural schematic diagram of the travel wheel of the present invention.

[0037] Figure 11 This invention Figure 10 A partial enlarged view of point B.

[0038] Figure 12 It is a structural diagram between the adjusting shaft and the adjusting knob of the present invention.

[0039] Figure 13 This invention Figure 12 A partial enlarged view of point C.

[0040] Figure 14 It is a structural schematic diagram of the jacking member of the present invention.

[0041] Figure 15 It is a cross-sectional view of the lifting member of the present invention.

[0042] Figure 16It is a planar cross-sectional view of the jacking member of the present invention.

[0043] Explanation of reference numerals: 1, cargo tray; 11, groove; 2, bottom plate; 21, sliding block; 3, lifter; 31, lifting support rod; 32, sliding groove; 33, lifting rod; 34, receiving groove; 35, lifting plate; 36, interference groove; 361, interference inclined surface; 362, clamping groove; 37, interference block; 371, tightening inclined surface; 372, protrusion; 38, connecting rod; 381, transmission screw; 39, transmission shaft; 4, traveler; 41. Top plate; 42. Cross rod; 43. Lifting shaft; 44. Through hole; 45. Support plate; 46. Sliding hole; 47. Sliding block; 48. Travel wheel; 49. Rotating shaft; 491. Sliding connecting rod; 5. Adjusting shaft; 51. Adjusting knob; 6. Lifting part; 61. Lifting slide; 62. Lifting support plate; 63. Telescopic plate; 64. Lifting plate; 65. Trigger plate; 66. Inclined hole; 67. Trigger shaft; 68. Drive shaft. DETAILED DESCRIPTION

[0044] The following is combined with Figures 1 to 16 This application is described in further detail.

[0045] The embodiment of the present application discloses a multifunctional automatic loading and unloading equipment suitable for vehicles. The self-propelled cargo tray arranges the cargo according to the size of the vehicle compartment. When the vehicle arrives at the loading and unloading position, the cargo pre-loaded on the cargo tray is delivered into the vehicle compartment at one time, or the cargo in the vehicle compartment is taken out at one time. This not only solves the problem of long waiting time for trucks in traditional loading and unloading methods, but also improves the efficiency of cargo loading and unloading.

[0046] Example 1:

[0047] Reference Figure 1 and Figure 2 As shown, after the goods produced in the factory are packaged, they are generally stacked on a pallet 1, and the goods on the pallet 1 are wrapped and fixed with stretch film, and then placed in a loading and unloading area such as a warehouse. Grooves 11 are symmetrically provided at the lower end of the pallet 1. The grooves 11 are generally used for forklifts and other equipment to fork and load and unload the goods.

[0048] A multifunctional automatic loading and unloading device includes a base plate 2 on which a plurality of symmetrically arranged sliding blocks 21 are arranged, and each group of sliding blocks 21 corresponds to a groove 11.

[0049] When loading the goods, the walker 4 provided at the lower end of the bottom plate 2 will first drive the bottom plate 2 to move, so that the bottom plate 2 moves to the front of the pallet 1 where the goods are placed, and each set of sliding blocks 21 is provided with a lifter 3; the lifter 3 will extend and insert into the groove 11 of the pallet 1, and then lift a row of pallets 1, and then move the pallet 1 with the goods to the bottom plate 2.

[0050] After that, the walker 4 starts and moves the bottom plate 2 to the compartment of the truck. The walker 4 will lift the bottom plate 2 so that the height of the bottom plate 2 is consistent with that of the compartment. Then each group of lifters 3 will lift the cargo pallet 1 on the bottom plate 2 again and put it into the compartment at one time, thus completing the loading of the goods.

[0051] When unloading goods, the walker 4 drives the bottom plate 2 to move to the compartment of the truck. The walker 4 will lift the bottom plate 2 so that the bottom plate 2 is at the same height as the compartment. The lifter 3 will extend and insert into the groove 11 of the pallet 1. Then each group of lifters 3 will lift a row of goods and move the pallet 1 with goods from the compartment to the bottom plate 2 at one time. After that, the walker 4 will drive the bottom plate 2 to move to the warehouse for placement, thereby completing the unloading of the goods.

[0052] Reference Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, specifically, the lifter 3 includes a lifting support rod 31 arranged on the sliding block 21, a sliding groove 32 is provided on the lifting support rod 31, a lifting rod 33 is slidably provided in the sliding groove 32, and a receiving groove 34 is symmetrically provided on both sides of the lifting rod 33, a lifting plate 35 is slidably provided in the receiving groove 34, and a plurality of interference grooves 36 are provided on the lifting plate 35, and a interference block 37 located in the interference groove 36 is slidably provided in the receiving groove 34, and a connecting rod 38 is commonly provided on the plurality of interference blocks 37.

[0053] When the cargo pallet 1 is lifted through the groove 11, the transmission shaft 39 set at the bottom of the sliding groove 32 is first driven to rotate through the existing driving technology. The rotating transmission shaft 39 will drive it to move outward through the threaded connection with the lifting rod 33, and the lifting rod 33 moving outward will be inserted into the groove 11.

[0054] Afterwards, the transmission screw 381 set in the accommodating groove 34 is driven to rotate. The rotating transmission screw 381 will drive it to move through the threaded connection with the connecting rod 38. The moving connecting rod 38 will drive the resistance block 37 to move together. The tightening inclined surface 371 set on the resistance block 37 will correspond to the resistance inclined surface 361 set on one side of the resistance groove 36, pushing the lifting plate 35 to move upward to lift the cargo pallet 1 and make the cargo pallet 1 away from the ground.

[0055] Then the drive shaft 39 is reversed, and the drive shaft 39 drives it to move inward through the threaded connection with the lifting rod 33. At this time, the lifting plate 35 will drive the lifted pallet 1 to move together, so that the pallet 1 moves to the bottom plate 2; thereby realizing the movement of the pallet 1 from the warehouse to the carriage or the movement of the goods from the carriage to the warehouse.

[0056] Among them, the lower end of the interference groove 36 is provided with a card slot 362, and the upper end of the interference block 37 is provided with a protrusion 372 corresponding to the card slot 362; when the connecting rod 38 drives the interference block 37 to move the interference block 37, the protrusion 372 at the upper end of the interference block 37 will move together until the protrusion 372 is inserted into the card slot 362 and the lifting plate 35 is fully raised, thereby lifting the cargo pallet 1 to keep the cargo pallet 1 away from the ground.

[0057] Reference Figure 9 、 Figure 10 and Figure 11 As shown, specifically, the walker 4 includes a top plate 41, and cross rods 42 are symmetrically and rotatably arranged between the top plate 41 and the bottom plate 2, and a lifting shaft 43 is arranged between the cross rods 42 on the same side, and the lifting shaft 43 is threadedly connected to the cross rod 42.

[0058] By driving the lifting shaft 43 to rotate, the rotating lifting shaft 43 will drive one end of the cross rod 42 to move through the threaded connection, thereby lifting the base plate 2 to the same height as the inside of the car, that is, the rotation of the lifting shaft 43 drives the movement of the cross rod 42 through the threaded connection, and the other end of the cross rod 42 is fixed on the base plate 2, so the base plate 2 will rise smoothly along the trajectory of the cross rod 42. When the base plate 2 rises to the same height as the inside of the car, the lifting shaft 43 stops rotating. Conversely, the rotation of the lifting shaft 43 drives the movement of the cross rod 42 through the threaded connection, and the other end of the cross rod 42 is fixed on the base plate 2, so the base plate 2 will fall smoothly along the trajectory of the cross rod 42.

[0059] Among them, a plurality of through holes 44 are opened on the bottom plate 2, and support plates 45 are symmetrically arranged on both sides of the through holes 44. Sliding holes 46 are symmetrically arranged on the support plates 45. Sliding blocks 47 are slidably arranged in the sliding holes 46, and a sliding connecting rod 491 connected to the sliding blocks 47 is slidably arranged on the support plates 45.

[0060] A running wheel 48 is rotatably provided between the two sliding blocks 47 . The running wheel 48 is responsible for bearing the weight of the base plate 2 and rolling on the ground to realize the movement of the base plate 2 .

[0061] By driving the rotating shaft 49 set on the base plate 2 to rotate, the rotating transmission shaft 39 will drive the sliding link 491 to move through the threaded connection with the sliding link 491, and the moving sliding link 491 will drive the sliding block 21 connected to it to move, and the movement of the sliding block 21 will cause the walking wheel 48 to move downward or upward.

[0062] When the cargo pallet 1 is lifted through the groove 11, the rotating shaft 49 will rotate to drive the sliding link 491 to move upward, causing the walking wheel 48 to move upward, allowing the bottom plate 2 to contact the top plate 41 to stabilize the bottom plate 2. Similarly, when reaching the unloading position, the rotating shaft 49 drives the walking wheel 48 to move upward, allowing the bottom plate 2 to contact the ground to stabilize the bottom plate 2.

[0063] On the contrary, when the cargo pallet 1 is moved to the unloading location, the rotating shaft 49 will rotate to drive the sliding link 491 to move upward, causing the walking wheel 48 to move upward, allowing the bottom plate 2 to contact the bottom plate 2 to stabilize the bottom plate 2. Similarly, when reaching the unloading position, the rotating shaft 49 drives the walking wheel 48 to move upward, allowing the bottom plate 2 to contact the ground to stabilize the bottom plate 2 and provide sufficient support force and stability to ensure the safety of the equipment when carrying goods.

[0064] Most existing technologies, when loading goods, wait for the truck to arrive at the loading area and then use forklifts and other equipment to load the goods. During this period, the truck needs to wait. When loading the goods, the pallet 1 containing the goods is first placed on the bottom plate 2 according to the size of the vehicle.

[0065] After the loading vehicle arrives, the bottom plate 2 is aligned with the carriage and raised to the corresponding height, and then the cargo pallet 1 is lifted up by the lifting plate 35. The lifting rod 33 sends the cargo pallet 1 loaded with goods into the carriage at one time, thereby completing the loading of the goods at one time to improve loading efficiency.

[0066] On the contrary, when the cargo in the carriage is unloaded, the lifting plate 35 is raised into the carriage to lift the cargo pallet 1, and the cargo pallet 1 loaded with cargo is moved to the bottom plate 2 at one time through the lifting rod 33, thereby completing the cargo unloading at one time.

[0067] Example 2:

[0068] Reference Figure 12 and Figure 13 As shown, based on the first embodiment, the sliding block 21 is slidably connected to the base plate 2 , an adjustment shaft 5 is rotatably provided on the base plate 2 through a bracket, and the adjustment shaft 5 slides through several sliding blocks 21 .

[0069] By rotating the adjusting knob 51 on the sliding block 21, the adjusting knob 51 will move the sliding block 21 on the base plate 2 through the threaded connection with the adjusting shaft 5 to change the position of each group of lifters 3, thereby adapting to the spacing of the grooves 11 on the large and small pallets 1. This not only improves the flexibility and adaptability of the loading and unloading equipment, but also enhances the ease of operation and precision control capabilities of the equipment.

[0070] Example 3:

[0071] Reference Figure 14 、 Figure 15 and Figure 16As shown, based on the first and second embodiments, a lifting member 6 is provided on the lifting rod 33 ; the lifting member is used to move a single pallet 1 .

[0072] Specifically, the lifting member 6 includes a lifting slot 61 provided on the lifting rod 33 , a lifting support plate 62 is slidingly provided in the lifting slot 61 , a telescopic plate 63 is symmetrically supported on the lifting support plate 62 , and a lifting plate 64 is commonly provided on the two telescopic plates 63 .

[0073] When a single cargo pallet 1 is moved, after the lifting rod 33 is extended, the driving shaft 68 set in the lifting chute 61 is driven to rotate. The rotating driving shaft 68 will be driven to move in the lifting chute 61 through the threaded connection with the lifting support plate 62, so that the lifting support plate 62 drives the lifting plate 64 to move to the bottom of the groove 11 of the cargo pallet 1.

[0074] The trigger plate 65 slidingly arranged on the lifting support plate 62 is then pushed by the cylinder to move, and the moving trigger plate 65 will drive several inclined holes 66 opened on it to move together. Since the lower end of the lifting plate 64 is provided with a trigger shaft 67 located in the inclined hole 66 through the bracket, the movement of the inclined hole 66 will force the trigger shaft 67 to move upward, and drive the lifting support plate 62 to move upward through the bracket, thereby lifting the cargo pallet 1.

[0075] Then the drive shaft 68 reverses, and the rotating drive shaft 68 drives the lifting support plate 62 to drive the lifting plate 64 through the telescopic plate 63, so that the single cargo pallet 1 moves on the lifting rod 33 to place the cargo into the car or warehouse, which not only improves the flexibility and adaptability of the loading and unloading equipment, but also enhances the safety and ease of operation of the equipment.

[0076] The implementation principle of the present invention is:

[0077] (1): When loading goods, the bottom plate 2 is first driven to move by the running wheels 48 so that the bottom plate 2 moves in front of the pallet 1 on which the goods are placed. The lifting rod 33 is inserted into the groove 11, and then the lifting plate 35 is pushed upward to lift the pallet 1 and keep the pallet 1 away from the ground.

[0078] (2): The transmission shaft 39 is then reversed, and the transmission shaft 39 drives the lifting rod 33 to move inward through the threaded connection. At this time, the lifting plate 35 will drive the lifted pallet 1 to move together, so that the pallet 1 moves to the bottom plate 2.

[0079] (3): The walker 4 is then started and the bottom plate 2 is moved to the compartment of the truck. The walker 4 will lift the bottom plate 2 so that the bottom plate 2 is at the same height as the compartment. The drive shaft 39 drives the lifting rod 33 to move outward through the threaded connection. At this time, the lifting plate 35 will drive the lifted pallet 1 to move together, so that the pallet 1 moves into the compartment, thereby completing the loading of the goods.

[0080] (4): When unloading the goods, the walker 4 drives the bottom plate 2 to move to the compartment of the truck, lifts the bottom plate 2 so that the bottom plate 2 is at the same height as the compartment, and when the lifting rod 33 moves outward, the lifting rod 33 is inserted into the groove 11, and then pushes the lifting plate 35 upward to lift the cargo pallet 1, so that the cargo pallet 1 is away from the bottom of the compartment.

[0081] (5): The transmission shaft 39 is then reversed, and the transmission shaft 39 drives the lifting rod 33 to move inward through the threaded connection with the lifting rod 33. At this time, the lifting plate 35 will drive the lifted pallet 1 to move together, so that the pallet 1 moves to the bottom plate 2.

[0082] (6): After that, the walker 4 starts and lowers the bottom plate 2. At this time, the lifting plate 35 drives the lifted pallet 1 to move together, so that the pallet 1 is moved into the warehouse for placement, thereby completing the unloading of the goods.

[0083] (7): When loading goods, first place the cargo pallet 1 loaded with goods on the bottom plate 2 according to the size of the vehicle compartment. After the loading vehicle arrives, align the bottom plate 2 with the vehicle compartment and raise it to the corresponding height. Then, lift the cargo pallet 1 with the lifting plate 35, and the lifting rod 33 will send the cargo pallet 1 loaded with goods into the vehicle compartment at one time, so as to complete the loading of goods at one time and improve the loading efficiency.

[0084] (8): On the contrary, when unloading the cargo in the compartment, the lifting plate 35 is lifted into the compartment to lift the cargo pallet 1, and the cargo pallet 1 loaded with cargo is moved to the bottom plate 2 at one time through the lifting rod 33, thereby completing the cargo unloading at one time.

[0085] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional automatic loading and unloading device, comprising a cargo tray (1) and a bottom plate (2), wherein the lower end of the cargo tray (1) is symmetrically provided with grooves (11), characterized in that: A plurality of symmetrically arranged sliding blocks (21) are provided on the bottom plate (2), each group of sliding blocks (21) corresponds to the groove (11), and a lifter (3) is provided on each group of sliding blocks (21), and the lifter (3) is used to lift the pallet (1) through the groove (11); The lifter (3) includes a lifting support rod (31) arranged on the sliding block (21), a sliding groove (32) is provided on the lifting support rod (31), a lifting rod (33) is slidably provided in the sliding groove (32), and accommodating grooves (34) are symmetrically provided on both sides of the lifting rod (33), and a lifting plate (35) is slidably provided in the accommodating groove (34); The lifter (3) further includes a plurality of conflicting grooves (36) provided on the lifting plate (35), a conflicting block (37) located in the conflicting groove (36) being slidably provided in the receiving groove (34), a connecting rod (38) being commonly provided on the plurality of conflicting blocks (37), and a transmission screw (381) being rotatably provided in the receiving groove (34) and being threadedly connected to the connecting rod (38); A resisting inclined surface (361) is provided on one side of the resisting groove (36), and a resisting inclined surface (371) corresponding to the resisting surface is provided on the resisting block (37); A clamping groove (362) is provided at the lower end of the abutment groove (36), and a protrusion (372) corresponding to the clamping groove (362) is provided at the upper end of the abutment block (37); A transmission shaft (39) is rotatably provided at the bottom of the sliding groove (32), and the transmission shaft (39) is threadedly connected to the lifting rod (33); when the cargo pallet (1) is lifted up through the groove (11), the transmission shaft (39) rotatably provided at the bottom of the sliding groove (32) is first driven to rotate, and the rotating transmission shaft (39) is driven to move outward through the threaded connection with the lifting rod (33), and the lifting rod (33) that moves outward is inserted into the groove (11); Afterwards, the transmission screw (381) arranged in the receiving groove (34) is driven to rotate, and the rotating transmission screw (381) drives the connecting rod (38) to move through the threaded connection, and the moving connecting rod (38) drives the contact block (37) to move the contact block (37) together, and the tightening inclined surface (371) provided on the contact block (37) corresponds to the contact inclined surface (361) provided on one side of the contact groove (36), pushing the lifting plate (35) to move upward to lift the cargo pallet (1), so that the cargo pallet (1) is away from the ground; Then the transmission shaft (39) is reversed, and the transmission shaft (39) is driven to move inward through the threaded connection with the lifting rod (33). At this time, the lifting plate (35) drives the lifted pallet (1) to move together, so that the pallet (1) moves to the bottom plate (2); thereby realizing the movement of the pallet (1) from the warehouse to the carriage or the movement of the goods from the carriage to the warehouse.

2. A multifunctional automatic loading and unloading device according to claim 1, characterized in that: A walker (4) is provided at the lower end of the bottom plate (2); the walker (4) includes a top plate (41), cross rods (42) symmetrically and rotatably connected to each other are provided between the top plate (41) and the bottom plate (2), a lifting shaft (43) is provided between the cross rods (42) on the same side, and the lifting shaft (43) is threadedly connected to the cross rod (42).

3. A multifunctional automatic loading and unloading device according to claim 2, characterized in that: A plurality of through holes (44) are provided on the top plate (41), support plates (45) are symmetrically provided on both sides of the through holes (44), sliding holes (46) are symmetrically provided on the support plates (45), sliding blocks (47) are slidably provided in the sliding holes (46), and a walking wheel (48) is rotatably provided between the two sliding blocks (47).

4. A multifunctional automatic loading and unloading device according to claim 3, characterized in that: A rotating shaft (49) is rotatably provided on the top plate (41), a sliding connecting rod (491) connected to the sliding block (47) is slidably provided on the support plate (45), and the sliding connecting rod (491) is threadedly connected to the rotating shaft (49).

5. A multifunctional automatic loading and unloading device according to claim 4, characterized in that: The sliding block (21) is slidably connected to the base plate (2), and an adjusting shaft (5) is rotatably provided on the base plate (2) through a bracket, and the adjusting shaft (5) slides through a plurality of sliding blocks (21), and an adjusting knob (51) is rotatably provided on the sliding block (21) and is threadably connected to the adjusting shaft (5).

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