Lifting mechanism for stacking of multiple layers of articles

Abstract

The utility model discloses a lifting mechanism for stacking multiple layers of articles, which comprises a total framework, at least two movable platforms and lifting components, the movable platforms and the lifting components are arranged on the total framework, the at least two movable platforms are horizontally arranged and are arranged at intervals along the vertical direction, the number of the lifting components corresponds to the movable platforms, and the number of the lifting components corresponds to the number of the movable platforms. The lifting assembly can lift the two ends of the movable platform at the same time. The movable platform comprises a telescopic driving part arranged at the lifting end of the lifting assembly and a first platform arranged at the driving end of the telescopic driving part, and the telescopic driving part is used for driving the first platform to move horizontally; a first lifting assembly is arranged at the top of the main framework and used for lifting objects to the first platform. According to the utility model, the loading and unloading requirements of stacking of multiple layers of articles can be effectively met.

Description

Technical Field

[0001] This utility model relates to the technical field of stacking items, and in particular to a lifting mechanism for stacking multi-layer items. Background Technology

[0002] In the field of special-purpose vehicles, special vehicles, and modified vehicles, especially vehicles responsible for the storage and transportation of goods, storage shelves are installed inside the vehicle's cabin, body, or container to stack goods.

[0003] To accommodate more items, storage shelves are designed with multiple layers. To facilitate the placement of items on the shelves, the storage platform is usually designed as a liftable platform. The platform is lowered, the items are moved onto the platform, and then the platform is raised again; or an external lifting mechanism is used to lift the items to the upper platform.

[0004] Lifting platforms installed inside storage racks are usually limited to single-layer lifting, making them unsuitable for multi-layer storage racks. External lifting mechanisms, on the other hand, require space inside the vehicle's cargo compartment, and in the absence of forklifts or other auxiliary machinery, operators still need to climb to move the raised items onto the storage rack, resulting in poor safety and practicality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a lifting mechanism for multi-layer stacked items, which can effectively meet the loading and unloading requirements of multi-layer stacked items.

[0006] To solve the above-mentioned technical problems, the lifting mechanism for multi-layer item stacking provided by this utility model adopts the following technical solution:

[0007] A multi-layer stacking lifting mechanism includes a main frame, movable platforms disposed on the main frame, and lifting components. The number of movable platforms is at least two, both horizontally arranged and spaced apart vertically. The number of lifting components corresponds to the number of movable platforms, and each lifting component can simultaneously lift both ends of a movable platform. Each movable platform includes a telescopic drive component disposed at the lifting end of the lifting component and a first platform disposed at the driving end of the telescopic drive component. The telescopic drive component drives the first platform to move horizontally. A first lifting component is disposed on the top of the main frame, and the first lifting component is used to lift items onto the first platform.

[0008] By adopting the above technical solution, the first lifting assembly lifts the item, the telescopic drive of the uppermost movable platform extends the first platform out of the main frame, the first lifting assembly places the item on the first platform, the telescopic drive retracts the first platform into the main frame, and the corresponding lifting assembly raises the first platform to a designated position. This process is repeated for the movable platforms from top to bottom to effectively meet the loading requirements of multi-layered item stacks. Conversely, the lowermost movable platform is lowered by the corresponding lifting assembly, the telescopic drive of the lower platform extends the first platform out of the main frame, the first lifting assembly lifts the item from the first platform and removes it, and the telescopic drive retracts the first platform into the main frame. This process is repeated for the movable platforms from bottom to top to effectively meet the unloading requirements of multi-layered item stacks.

[0009] Optionally, the activity platform further includes a second platform, and the telescopic drive is disposed between the first platform and the second platform. The telescopic drive is used to drive the first platform and the second platform to move closer to or further away from each other. The overall frame is also provided with a second lifting assembly, which is used to lift items onto the second platform.

[0010] By adopting the above technical solution, the first and second platforms are simultaneously extended or retracted via a telescopic drive component, and the first and second lifting components are simultaneously used to load or retract items, thereby improving efficiency. Furthermore, dividing the movable platform into a first and second platform ensures that the overall center of gravity is located at the central axis of the main frame when the platform is extended to load items, thus ensuring balanced force distribution on the main frame and improving load-bearing stability.

[0011] Optionally, a fixed platform is fixedly installed at the bottom of the overall frame. The fixed platform is located below the movable platform, and the fixed platform has the same composition and structure as the movable platform.

[0012] By adopting the above technical solution, the fixed platform is set at the bottom of the main frame, which can make full use of the space under the movable platform and increase the storage space.

[0013] Optionally, the lifting assembly includes a steering motor and a first reversing component fixed to the main frame. The steering motor and the first reversing component are located on both sides of the movable platform. The drive end of the steering motor is connected to the input end of the first reversing component through a first transmission rod. The output ends of the steering motor and the first reversing component are respectively provided with lifting components. The lifting component includes a second transmission rod, a driving gear fixed to the second transmission rod, a driven gear fixed to the main frame, and a transmission rack sleeved on both the driving gear and the driven gear. The telescopic drive component is fixedly disposed on the transmission rack. The second transmission rod of one of the lifting components is fixed to the output end of the steering motor, and the second transmission rod of the other lifting component is fixed to the output end of the first reversing component. The telescopic drive component is fixed to the transmission rack.

[0014] By adopting the above technical solution, the steering motor is started, which drives the second transmission rod and the drive gear to rotate, thereby driving the driven gear and the transmission rack to move one end of the movable platform up and down; at the same time, the steering motor inputs power to the first reversing component through the first transmission rod, and the first reversing component drives the second transmission rod and the drive gear to rotate, thereby moving the other end of the movable platform up and down, thus enabling the movable platform to move up and down stably.

[0015] Optionally, the output end of the steering motor is connected to a second commutator, the second commutator is connected to the first commutator via a first transmission rod, the second commutator is connected to two lifting components, and the telescopic drive component on one side of the movable platform is simultaneously fixed to the transmission racks of the two lifting components; the first commutator is also connected to two lifting components, and the telescopic drive component on the other side of the movable platform is simultaneously fixed to the transmission racks of the two lifting components.

[0016] By adopting the above technical solution, the steering motor inputs power to the second commutator, which then transmits the power to the first commutator and the two lifting components respectively. Two lifting components are installed on each side of the movable platform, which can more stably and smoothly raise and lower the movable platform.

[0017] Optionally, the telescopic drive component includes a fixed slide seat disposed at the lifting end of the lifting assembly, two drive rods slidably connected to the fixed slide seat, and two drive motors fixed to the fixed slide seat. The two drive rods are respectively connected to the drive ends of the two drive motors, and the two drive rods move in opposite directions. The first platform and the second platform are respectively fixed to the two drive rods.

[0018] By adopting the above technical solution, the drive motor is started, and the drive motor drives the two drive rods to move closer or further apart, so as to drive the first platform and the second platform to extend or retract the overall frame.

[0019] Optionally, the first lifting assembly includes a lifting drive unit fixedly connected to the main frame, a telescopic arm fixed to the lifting drive unit, and a lifting rope with one end fixed to the telescopic arm. The main frame is fixed with a fixed pulley, the lifting rope is laid on the fixed pulley, and the lifting drive unit is used to drive the telescopic arm to extend and retract.

[0020] By adopting the above technical solution, the fixed pulley keeps the end of the lifting rope moving in a vertical direction, and the lifting drive drives the telescopic arm to extend and retract, so as to drive the end of the lifting rope to descend or rise, thereby realizing the lifting and lowering of the item.

[0021] Optionally, a locking element is provided on the overall frame for each first platform and second platform, and the locking element is used to limit the position of the first platform and the second platform relative to the overall frame.

[0022] By adopting the above technical solution, the locking component limits the first platform and the second platform relative to the overall frame, preventing the first platform and the second platform from moving due to bumps caused by vehicle movement or accidental start of the drive motor, thereby enabling the first platform and the second platform to support the items more stably.

[0023] Optionally, the locking component includes a mounting base fixed to the main frame, a locking motor fixed to the mounting base, a locking block hinged to the mounting base, and a pin fixed to the locking block. The drive shaft of the locking motor is vertically fixed to a first connecting rod, the first connecting rod is hinged to a second connecting rod, and the second connecting rod is hinged to the locking block. The rotation planes of the first connecting rod, the second connecting rod, and the locking block are all vertical. The lower sides of the first platform and the second platform are provided with insertion holes. When the first connecting rod and the second connecting rod are on the same straight line, the pin is inserted into the insertion hole.

[0024] By adopting the above technical solution, after the first platform and the second platform retract the main frame, the drive shaft of the locking motor rotates, causing the first connecting rod to rotate in a direction away from the mounting base. At the same time, the second connecting rod drives the locking block to rotate upward until the first connecting rod and the second connecting rod are in the same straight line. The locking block rotates to the horizontal plane, at which point the pin is inserted into the insertion hole of the first platform or the second platform to achieve the locking state of the first platform or the second platform relative to the main frame.

[0025] Optionally, the mounting base is fixed with a limiting rod, which is located on the side of the first connecting rod away from the mounting base. When the first connecting rod abuts against the first connecting rod, the first connecting rod and the second connecting rod are on the same straight line.

[0026] By adopting the above technical solution, the locking motor drives the first link to rotate in a direction away from the mounting base. When the first link and the second link are on the same straight line, the limit rod can restrict the first link from continuing to rotate, thereby avoiding the situation where the locking fails due to excessive rotation of the first link and improving the stability of the locking.

[0027] In summary, this utility model has at least one of the following beneficial technical effects:

[0028] 1. The item is lifted by the first lifting assembly, the telescopic drive of the uppermost movable platform is activated to extend the first platform out of the main frame, the item is placed on the first platform by the first lifting assembly, the telescopic drive drives the first platform to retract into the main frame, and the lifting assembly corresponding to the movable platform lifts the first platform to the designated position; the above operation is then performed on the movable platforms from top to bottom in sequence to effectively meet the loading requirements of multi-layer stacked items;

[0029] 2. The movable platform is lowered by the lifting component corresponding to the lowest movable platform. The telescopic drive of the movable platform is activated to extend the first platform out of the main frame. The first lifting component lifts the item from the first platform and removes it. The telescopic drive drives the first platform to retract into the main frame. The above operation is then performed on the movable platforms from bottom to top in sequence to effectively meet the unloading requirements of multi-layer stacked items.

[0030] 3. The first and second platforms are simultaneously extended or retracted via a telescopic drive, and the first and second lifting assemblies are used simultaneously to load or retract items, thereby improving efficiency. The movable platform is divided into a first and a second platform, ensuring that the overall center of gravity is located at the central axis of the main frame when the platform is extended to load items, thus achieving balanced force distribution on the main frame and improving load-bearing stability. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the lifting mechanism of this utility model used to display multi-layer stacked items.

[0032] Figure 2 This is a structural schematic diagram of the present invention used to demonstrate the lifting assembly, the movable platform, and the fixed platform.

[0033] Figure 3 This is a structural diagram of the display activity platform of this utility model.

[0034] Figure 4 yes Figure 2 A magnified structural diagram of part A in the middle.

[0035] Figure 5 This is a structural schematic diagram of the present invention used to demonstrate the overall frame and locking components.

[0036] Figure 6 yes Figure 5 A magnified structural diagram of part B.

[0037] Explanation of reference numerals in the attached drawings: 1. Overall frame; 2. Movable platform; 21. Telescopic drive component; 211. Fixed slide; 212. Drive rod; 213. Drive motor; 22. First platform; 23. Second platform; 3. Lifting assembly; 31. Steering motor; 32. First reversing component; 33. Lifting component; 331. Second transmission rod; 332. Drive gear; 333. Transmission rack; 334. Driven gear; 34. First transmission rod; 35. Second reversing component; 4. First lifting assembly; 41. Lifting drive component; 42. Telescopic arm; 43. Lifting rope; 44. Fixed pulley; 45. Lifting boom; 5. Second lifting assembly; 6. Fixed platform; 7. Locking component; 71. Mounting base; 72. Locking motor; 73. Locking block; 74. Pin; 75. First connecting rod; 76. Second connecting rod; 77. Limiting rod; 8. Item fixing hole; 9. Rack fixing seat. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-6 The present invention will be described in further detail below.

[0039] This utility model discloses a lifting mechanism for stacking multi-layered items. (Refer to...) Figure 1 The multi-layer stacking lifting mechanism includes a main frame 1, a fixed platform 6, a movable platform 2, a lifting component 3, a first lifting component 4, and a second lifting component 5. The main frame 1 has a rectangular frame structure. The fixed platform 6 is fixedly installed at the bottom of the main frame 1, which can make full use of the space under the movable platform 2 and increase the storage space.

[0040] Reference Figure 1 and Figure 2 The number of movable platforms 2 is at least two. In this embodiment, there are two movable platforms 2, both horizontally arranged and spaced apart vertically. The number of lifting components 3 corresponds to the number of movable platforms 2. The two lifting components 3 are located on the main frame 1 and respectively on the two movable platforms 2. The lifting components 3 can simultaneously lift both ends of the movable platforms 2. The first lifting component 4 and the second lifting component 5 are both located on the top of the main frame 1.

[0041] Reference Figure 2 The lifting assembly 3 includes a steering motor 31 and a first commutator 32. The steering motor 31 and the first commutator 32 are located on both sides of the movable platform 2. The drive end of the steering motor 31 is connected to the input end of the first commutator 32 through the first transmission rod 34. The output ends of the steering motor 31 and the first commutator 32 are respectively provided with lifting components 33.

[0042] Reference Figure 2The lifting component 33 includes a second transmission rod 331, a driving gear 332, a driven gear 334, and a transmission rack 333 simultaneously fitted onto the driving gear 332 and the driven gear 334. The driving gear 332 is coaxially fixed to the second transmission rod 331, the driven gear 334 is fixed to the bottom of the overall frame 1, and the transmission rack 333 is simultaneously fitted onto the driving gear 332 and the driven gear 334. The long side of the transmission rack 333 is vertically arranged, and the movable platform 2 is fixedly mounted on the transmission rack 333. The second transmission rod 331 of one lifting component 33 is fixed to the output end of the steering motor 31, and the second transmission rod 331 of the other lifting component 33 is fixed to the output end of the first reversing component 32.

[0043] Reference Figure 2 The output end of the steering motor 31 is connected to a second commutator 35. The second commutator 35 has three power output ends. One of the power output ends of the second commutator 35 is connected to the power input end of the first commutator 32 via a first transmission rod 34. The other two power output ends of the second commutator 35 are respectively connected to lifting members 33, and are respectively fixedly connected to the second transmission rods 331 of the two lifting members 33. The first commutator 32 has two power output ends, and the two power output ends of the first commutator 32 are respectively connected to lifting members 33, and are respectively fixedly connected to the second transmission rods 331 of the two lifting members 33.

[0044] The steering motor 31 is activated, driving the second transmission rod 331 and the drive gear 332 to rotate, which in turn drives the driven gear 334 and the transmission rack 333 to raise and lower one end of the movable platform 2. Simultaneously, the steering motor 31 inputs power to the first reversing member 32 via the first transmission rod 34. The first reversing member 32 drives the second transmission rod 331 and the drive gear 332 to rotate, raising and lowering the other end of the movable platform 2, thus ensuring stable raising and lowering of the platform 2. The steering motor 31 inputs power to the second reversing member 35, which then transmits power to the first reversing member 32 and the two lifting members 33. Two lifting members 33 are installed on each side of the movable platform 2, enabling more stable and smooth raising and lowering of the platform 2.

[0045] Reference Figure 3 and Figure 4The active platform 2 includes a telescopic drive component 21, a first platform 22, and a second platform 23. The telescopic drive component 21 includes a fixed slide 211, two drive rods 212, and two drive motors 213. The fixed slide 211 is fixedly mounted on a transmission rack 333 via a rack and pinion mounting base 9. Both drive rods 212 are slidably connected to the fixed slide 211 and are located on the same horizontal line. The two drive motors 213 are fixedly connected to the fixed slide 211 and are linear motors. The two drive rods 212 are respectively connected to the drive ends of the two drive motors 213, and the sliding directions of the two drive rods 212 are opposite. The first platform 22 and the second platform 23 are respectively fixed to the two drive rods 212.

[0046] Reference Figure 1 and Figure 3 Both the first platform 22 and the second platform 23 are rectangular plate structures located on the same horizontal plane. The fixed platform 6 has the same structure as the movable platform 2, and the fixed slide 211 of the fixed platform 6 is fixedly installed on the main frame 1. Both the first platform 22 and the second platform 23 are provided with item fixing holes 8. In this embodiment, the item fixing holes 8 are screw holes, which can be used to insert and thread the item to the item fixing holes 8 to stably fix the item to the first platform 22 and the second platform 23.

[0047] The drive motor 213 is activated, which drives the two drive rods 212 to move closer or further apart, thereby extending or retracting the first platform 22 and the second platform 23 into the overall frame 1. By simultaneously extending or retracting the first platform 22 and the second platform 23, and then simultaneously loading or retracting items via the first lifting assembly 4 and the second lifting assembly 5, loading and unloading efficiency can be improved. Furthermore, dividing the movable platform 2 into the first platform 22 and the second platform 23 ensures that the overall center of gravity is located at the central axis of the overall frame 1 when the platform is extended to load items, thus ensuring balanced force distribution on the overall frame 1 and improving load-bearing stability.

[0048] Reference Figure 1 The first lifting assembly 4 includes a lifting drive 41, a telescopic arm 42, and a lifting rope 43. The lifting drive 41 is fixedly connected to the top of the main frame 1. The telescopic arm 42 is fixed to the drive end of the lifting drive 41. The lifting drive 41 is a device such as a cylinder that can drive the telescopic arm 42 to extend or retract. One end of the lifting rope 43 is fixed to the movable end of the telescopic arm 42, and the other end of the lifting rope 43 is detachably connected to the boom 45. A fixed pulley 44 is fixed to the top of the main frame 1, and the lifting rope 43 is laid on the fixed pulley 44. The fixed pulley 44 keeps the end of the lifting rope 43 moving vertically. The lifting drive 41 drives the telescopic arm 42 to extend or retract, thereby causing the end of the lifting rope 43 to descend or rise, so as to realize the lifting and lowering of the object. The second lifting assembly 5 has the same composition and structure as the first lifting assembly 4.

[0049] Reference Figure 5 and Figure 6 A locking component 7 is provided on the main frame 1 for each first platform 22 and second platform 23. The locking component 7 includes a mounting base 71, a locking motor 72, a locking block 73, and a pin 74. The mounting base 71 is fixed to the main frame 1, the locking motor 72 is fixed to the mounting base 71, the locking block 73 is hinged to the mounting base 71, and the rotation plane of the locking block 73 is vertically arranged. The pin 74 is fixed to the upper side of the locking block 73. The drive shaft of the locking motor 72 is vertically fixed with a first connecting rod 75, and the other end of the first connecting rod 75 is hinged to a second connecting rod 76, which is hinged to the locking block 73. The rotation planes of both the first connecting rod 75 and the second connecting rod 76 are vertically arranged. The lower side of both the first platform 22 and the second platform 23 has an insertion hole. When the first connecting rod 75 and the second connecting rod 76 are in the same straight line, the pin 74 is inserted into the insertion hole. Mounting base 71 is fixed with limit rod 77. Limit rod 77 is located on the side of first link 75 away from mounting base 71. When first link 75 abuts against first link 76, first link 75 and second link 76 are on the same straight line.

[0050] After the first platform 22 and the second platform 23 retract into the main frame 1, the drive shaft of the locking motor 72 rotates, causing the first connecting rod 75 to rotate away from the mounting base 71. Simultaneously, the second connecting rod 76 drives the locking block 73 to rotate upwards until the first connecting rod 75 and the second connecting rod 76 are aligned. The locking block 73 then rotates to a horizontal plane, at which point the pin 74 is inserted into the socket of the first platform 22 or the second platform 23, achieving a locking state of the first platform 22 or the second platform 23 relative to the main frame 1. The locking motor 72 drives the first connecting rod 75 to rotate away from the mounting base 71. When the first connecting rod 75 and the second connecting rod 76 are aligned, the limiting rod 77 restricts the first connecting rod 75 from continuing to rotate, thus preventing excessive rotation of the first connecting rod 75 and potential locking failure, thereby improving locking stability.

[0051] The implementation principle of a multi-layer stacking lifting mechanism according to this utility model embodiment is as follows:

[0052] Loading process: Start the lifting drive unit 41 to drive the telescopic boom 42 to extend outward, lower the hoisting rope 43, hang the boom 45 on the hoisting rope 43, fix the items to be loaded on the transfer vehicle on the boom 45, and retract the telescopic boom 42 inward to drive the hoisting rope 43 to lift the items to the designated position; start the drive motor 213 to extend the first platform 22 and the second platform 23 of the highest layer outward, lower the hoisting rope 43 to lower the items onto the first platform 22 or the second platform 23, fix them through the item fixing holes 8, and then drive the first platform 22 and the second platform 23 to retract inward. Start the steering motor 31 to drive the transmission rack 333 to rotate, so as to lift the movable platform 2 of the highest layer upward to the designated position, and then use the locking device 7 to limit and lock the first platform 22 and the second platform 23 relative to the overall frame 1. The loading method of the second-level mobile platform 2 is the same as the above process. The fixed platform 6 does not need to be lifted. Simply extend the first platform 22 and the second platform 23 outward, use the hoisting rope 43 to hoist the items onto the first platform 22 and the second platform 23, and then retract the first platform 22 and the second platform 23 inward.

[0053] Unloading process: Start the lifting drive unit 41 to extend the telescopic boom 42 outwards, lower the hoisting rope 43, and hook the boom 45 onto the hoisting rope 43. Release the locking device 7 from the limit locks on the first platform 22 and the second platform 23. Start the drive motor 213 to extend the lowest-level first platform 22 and the second platform 23 outwards, securing the items to be loaded on the first platform 22 and the second platform 23 onto the hoisting rope 43. The hoisting rope 43 then lifts the items away, and the first platform 22 and the second platform 23 are then driven to retract inwards. Start the steering motor 31 to drive the transmission rack 333 to rotate, causing the second-level movable platform 2 to descend to the designated position. Secure the items to be loaded on the first platform 22 and the second platform 23 onto the hoisting rope 43, and the hoisting rope 43 lifts the items away. The first platform 22 and the second platform 23 are then driven to retract inwards. The unloading method for the highest-level movable platform 2 is the same as the process for the second-level movable platform 2 described above.

[0054] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A lifting mechanism for stacking multiple layers of items, characterized in that: The system includes a main frame (1), a movable platform (2) disposed on the main frame (1), and a lifting assembly (3). The number of movable platforms (2) is at least two, and the at least two movable platforms (2) are arranged horizontally and spaced apart in the vertical direction. The number of lifting assemblies (3) corresponds to the number of movable platforms (2). The lifting assemblies (3) can lift both ends of the movable platforms (2) simultaneously. The movable platform (2) includes a telescopic drive (21) disposed on the lifting end of the lifting assembly (3) and a first platform (22) disposed on the driving end of the telescopic drive (21). The telescopic drive (21) is used to drive the first platform (22) to move horizontally. A first lifting assembly (4) is disposed on the top of the main frame (1). The first lifting assembly (4) is used to lift items onto the first platform (22).

2. The lifting mechanism for multi-layer item stacking according to claim 1, characterized in that: The activity platform (2) also includes a second platform (23). The telescopic drive component (21) is disposed between the first platform (22) and the second platform (23). The telescopic drive component (21) is used to drive the first platform (22) and the second platform (23) to move closer or further apart from each other. The overall frame (1) is also provided with a second lifting assembly (5). The second lifting assembly (5) is used to lift items onto the second platform (23).

3. The lifting mechanism for stacking multiple layers of items according to claim 1, characterized in that: A fixed platform (6) is fixedly installed at the bottom of the overall frame (1). The fixed platform (6) is located below the movable platform (2). The fixed platform (6) has the same composition and structure as the movable platform (2).

4. The lifting mechanism for multi-layer item stacking according to claim 1, characterized in that: The lifting assembly (3) includes a steering motor (31) and a first reversing member (32) fixed to the main frame (1). The steering motor (31) and the first reversing member (32) are located on both sides of the movable platform (2). The driving end of the steering motor (31) is connected to the input end of the first reversing member (32) through a first transmission rod (34). The output ends of the steering motor (31) and the first reversing member (32) are respectively provided with lifting members (33). The lifting member (33) includes a second transmission rod (331) and an active gear fixed to the second transmission rod (331). The wheel (332), the driven gear (334) fixed to the main frame (1), and the transmission rack (333) simultaneously sleeved on the driving gear (332) and the driven gear (334) are provided. The telescopic drive member (21) is fixedly installed on the transmission rack (333). The second transmission rod (331) of one of the lifting members (33) is fixed to the output end of the steering motor (31). The second transmission rod (331) of the other lifting member (33) is fixed to the output end of the first reversing member (32). The telescopic drive member (21) is fixed to the transmission rack (333).

5. A lifting mechanism for stacking multiple layers of items according to claim 4, characterized in that: The output end of the steering motor (31) is connected to a second commutator (35), which is connected to the first commutator (32) via a first transmission rod (34). The second commutator (35) is connected to two lifting members (33). The telescopic drive member (21) on one side of the movable platform (2) is simultaneously fixed to the transmission rack (333) of the two lifting members (33). The first commutator (32) is also connected to two lifting members (33), and the telescopic drive member (21) on the other side of the movable platform (2) is simultaneously fixed to the transmission rack (333) of the two lifting members (33).

6. The lifting mechanism for multi-layer item stacking according to claim 2, characterized in that: The telescopic drive component (21) includes a fixed slide (211) disposed at the lifting end of the lifting assembly (3), two drive rods (212) slidably connected to the fixed slide (211), and two drive motors (213) fixed to the fixed slide (211). The two drive rods (212) are respectively connected to the driving ends of the two drive motors (213), and the two drive rods (212) move in opposite directions. The first platform (22) and the second platform (23) are respectively fixed to the two drive rods (212).

7. The lifting mechanism for multi-layer stacking of items according to claim 1, characterized in that: The first lifting assembly (4) includes a lifting drive (41) fixedly connected to the main frame (1), a telescopic arm (42) fixed to the lifting drive (41), and a lifting rope (43) with one end fixed to the telescopic arm (42). The main frame (1) is fixed with a fixed pulley (44), and the lifting rope (43) is laid on the fixed pulley (44). The lifting drive (41) is used to drive the telescopic arm (42) to extend and retract.

8. The lifting mechanism for multi-layer stacking of items according to claim 1, characterized in that: The overall frame (1) is provided with locking members (7) corresponding to each first platform (22) and second platform (23), and the locking members (7) are used to limit the first platform (22) and second platform (23) relative to the overall frame (1).

9. A lifting mechanism for stacking multi-layered items according to claim 8, characterized in that: The locking component (7) includes a mounting base (71) fixed to the main frame (1), a locking motor (72) fixed to the mounting base (71), a locking block (73) hinged to the mounting base (71), and a pin (74) fixed to the locking block (73). The drive shaft of the locking motor (72) is vertically fixed with a first connecting rod (75). The first connecting rod (75) is hinged to a second connecting rod (76). The second connecting rod (76) is hinged to the locking block (73). The rotation planes of the first connecting rod (75), the second connecting rod (76), and the locking block (73) are all vertical. The lower sides of the first platform (22) and the second platform (23) are provided with insertion holes. When the first connecting rod (75) and the second connecting rod (76) are on the same straight line, the pin (74) is inserted into the insertion hole.

10. A lifting mechanism for stacking multi-layered items according to claim 9, characterized in that: The mounting base (71) is fixed with a limiting rod (77), which is located on the side of the first connecting rod (75) away from the mounting base (71). When the first connecting rod (75) abuts against the first connecting rod (76), the first connecting rod (75) and the second connecting rod (76) are on the same straight line.

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