A cargo loading platform

Abstract

This invention provides a cargo loading and unloading platform, including a frame. The frame is characterized by multiple open-fronted slides arranged side-by-side, with lifting forks positioned within each corresponding slide. A translation mechanism mounted on the frame for manipulating the movement of the lifting forks, and a cargo conveying mechanism mounted on the frame and located on the slides, also included. The translation mechanism extends or retracts the lifting forks from the open front of the slides, allowing cargo placed on the frame to be transferred to the cargo compartment via the rear door, thus eliminating many inconveniences associated with traditional manual handling. The lifting mechanism raises or lowers the lifting forks, enabling cargo to be moved off the frame or returned to the slides after placement. The cargo conveying mechanism facilitates the movement and adjustment of cargo on the frame.

Description

Technical Field

[0001] This invention provides a loading and unloading platform, particularly a cargo loading and unloading platform, belonging to the field of logistics equipment design and manufacturing technology. Background Technology

[0002] With the continuous development of the logistics industry, automated logistics equipment has made significant progress, and traditional manual handling is gradually being replaced by mechanical handling. Currently, long-distance freight transportation is mainly accomplished using large box trucks. Logistics stations or manufacturing companies neatly stack goods on pallets, and then use forklifts and other equipment to place the pallets into the truck bed one by one. Because the doors of large box trucks are located at the rear, and the reach of forklifts and other lifting equipment is limited, goods can only be delivered to the truck bed and near the door. Then, manual labor is required to push the goods into the middle of the truck bed and arrange them in order. This frequent operation is not only inefficient and time-consuming, but also requires the installation of tracks inside the truck bed to smoothly move the pallets and goods, undoubtedly increasing the complexity of the operation. Furthermore, manual handling of heavy goods is extremely difficult, requiring a large amount of manpower and increasing the labor burden on enterprises. Therefore, it is necessary to improve existing technologies. Summary of the Invention

[0003] To address the problems of inconvenient operation, low efficiency, time-consuming and labor-intensive loading of goods in existing large box trucks, and the difficulty in reducing the labor intensity caused by manual movement of goods, this invention provides a cargo loading and unloading platform.

[0004] The present invention is accomplished through the following technical solution: a cargo loading and unloading platform, comprising a frame, characterized in that a plurality of open-front slides are arranged side by side on the frame, lifting slides are respectively arranged in the corresponding slides, a translation mechanism for manipulating the movement of the lifting slides is arranged on the frame, and a cargo conveying mechanism is arranged on the frame and located on the slides.

[0005] The lifting slide fork includes a lower moving fork, an expansion lifting mechanism, an upper moving fork, and a translation mechanism. The lower moving fork is movably sleeved on the upper moving fork, forming a first accommodating space between the upper and lower moving forks. The expansion lifting mechanism is located in the first accommodating space and drives the upper moving fork to move vertically up and down along the lower moving fork. A second accommodating space is formed between the lower moving fork and the slide rail. The translation mechanism is located in the second accommodating space and drives the upper and lower moving forks to translate along the slide rail.

[0006] This allows the translation mechanism to drive the lifting forks to move back and forth along the slide rail, extending or retracting from the opening at the front of the slide rail. This allows all the goods placed on the lifting forks to be transferred through the rear door of the carriage into the carriage, completing a one-time loading of the entire vehicle. Alternatively, all the goods in the carriage can be forked onto the lifting forks and then removed, completing a one-time unloading of the entire vehicle. This solves the many inconveniences caused by repeated manual handling of goods. By raising the lifting forks, the goods are lifted off the frame, or by lowering the lifting forks, the goods are placed on the frame and supported by it, realizing the movement and placement of goods on the frame.

[0007] The frame is a horizontal rectangular frame with an open front end and a closed rear end. The horizontal rectangular frame consists of multiple spaced longitudinal beams and crossbeams located at the rear ends of the multiple longitudinal beams. Multiple transverse connecting rods are spaced along the bottom of the horizontal rectangular frame from one end of the multiple longitudinal beams to the other end, so as to fix and install slides, lifting forks, various transmission components, drive equipment, and bear goods and pallets through the frame.

[0008] Furthermore, the upper moving fork is formed by vertical plates on both sides and a horizontal or arc-shaped top plate to form a first U-shaped long frame with an opening facing downwards; the lower moving fork is formed by vertical plates on both sides and a horizontal or arc-shaped top plate to form a second U-shaped long frame with an opening facing downwards; and the slide is formed by vertical plates on both sides and a horizontal bottom plate to form a third U-shaped long frame with an opening facing upwards.

[0009] Furthermore, corresponding vertical positioning slide bars or vertical positioning grooves are provided on the vertical plates on both sides of the upper and lower moving forks, so that the top of the lower moving fork can be inserted into the opening at the bottom of the upper moving fork, and the vertical positioning slide bars and the corresponding vertical positioning grooves can be slidably engaged one by one to achieve good lifting limit and sliding function.

[0010] Furthermore, both the upper and lower moving forks are movably connected by multiple segmented bodies through rotating connectors, so that the upper and lower moving forks have good height difference adjustment capability through the connection of multiple segmented bodies, thereby improving the applicability of the lifting slide fork.

[0011] Furthermore, the rotating connector is a conventional hinge or a conventional fastener, which enables the multiple segments of the upper and lower moving forks to have good height difference adjustment capability and reduce the shortcomings of rigid connection.

[0012] The slide is fixedly connected by multiple segments. The horizontal base plate of the slide is provided with a chain groove that matches the drive chain. This chain groove prevents horizontal deformation of the drive chain when it moves under load, thereby improving the stability of the lifting fork moving within the slide.

[0013] The expansion lifting mechanism is configured as an expansion body with a length adapted to the length of the upper and lower moving forks and a hollow interior. The medium inlet and outlet of the expansion body are located between the ends of the upper and lower moving forks. It is connected to an external medium supply device through a medium conveying pipeline so that, as needed, gas or liquid can be injected into the hollow expansion body to cause it to expand and push the upper moving fork to rise, and vice versa, thereby realizing the height adjustment of the lifting slide fork.

[0014] Furthermore, the upper moving fork end is provided with a flat plate bracket adapted to the expansion body, and the lower moving fork end is provided with a downwardly inclined surface adapted to the expansion body, so that the length of the expansion body is limited by the cooperation of the flat plate bracket at the same end and the downwardly inclined surface, so that it is always within the upper and lower moving forks.

[0015] Furthermore, the inflatable body is an elongated air band or bladder.

[0016] The translation mechanism includes a moving component and a driving component. The moving component is rotatably disposed within the second accommodating space. The driving component is disposed outside the slide and connected to the moving component via a chain inlet / outlet on the slide. This allows the goods to be removed from the frame when the upper moving fork is raised by the expansion lifting mechanism, and to be placed on the slide and supported by it when it is lowered. The translation mechanism then facilitates the reciprocating movement of the upper and lower moving forks along the slide.

[0017] The moving component includes: several roller sets, a drive chain and an adjusting frame. The roller sets include axles connected to the inner sides of the vertical plates on both sides of the lower moving fork, and rollers rotatably mounted on the axles and rolling in contact with the slide rail, so as to facilitate the rollers to drive the upper and lower moving forks to move on the slide rail, thereby realizing the extension or retraction of the lifting slide fork.

[0018] Furthermore, after the drive chain is wound around the drive assembly outside the slide, its two ends extend inward through the chain inlet and outlet on the slide and are connected to the corresponding adjustment frame respectively.

[0019] Furthermore, the drive assembly includes a drive sprocket located below the slide rail and mated with the drive chain. Both ends of the drive sprocket's axle are respectively rolledly connected to bearings with seats. One end of the drive sprocket's axle is connected to the main shaft of the first power machine, so that under the drive of the first power machine, the drive chain is moved by the drive sprocket, and then several roller groups and the lower moving fork and upper moving fork are moved synchronously along the horizontal base plate of the slide rail, so as to realize the extension or retraction of the lifting slide fork.

[0020] Furthermore, the adjusting frame is respectively located at both ends of the lower moving fork, and includes: a fixed block respectively located between the vertical side plates at both ends of the lower moving fork, and a movable block respectively connected to both ends of the drive chain. The movable block is screwed to the inner end of the first horizontal screw, and the outer end of the first horizontal screw extends outward through the through hole on the fixed block. A horizontal plate extending in the direction of the drive chain is provided on the top of the fixed block. A horizontal through groove is provided on the horizontal plate, and a vertical limiting rod is provided on the top of the movable block. The top of the vertical limiting rod is placed in the horizontal through groove on the horizontal plate so that when the first horizontal screw is rotated, the movable block is driven to move along the first horizontal screw and the horizontal through groove on the horizontal plate, thereby adjusting the tension of the drive chain.

[0021] Furthermore, a front and rear guide wheel is provided below the chain inlet and outlet to mate with the drive chain. The front and rear guide wheels are respectively connected to the corresponding movable wheel frame through wheel axles. The movable wheel frame is screwed to the fixed frame located on the bottom surface of the horizontal base plate of the platform slide through a second horizontal screw. This allows the second horizontal screw to be operated simultaneously when the adjustment frame adjusts the tension of the drive chain, thereby driving the movable wheel frame and the front and rear guide wheels to move adaptively to meet the tension adjustment requirements of the drive chain.

[0022] Furthermore, the adjustment frame can also be other conventional adjustment mechanisms.

[0023] The cargo conveying mechanism includes: a moving chain that is respectively set on multiple slide rails to drive the cargo on them to move, and the conveying surface of the moving chain is higher than the top surface of the lifting slide fork in the landing state. The moving chain is connected to the power unit through a transmission component.

[0024] Furthermore, the transmission assembly includes a plurality of driving sprockets and driven sprockets located at the front and rear ends of the frame via corresponding axles, with moving chains respectively sleeved between the corresponding driving sprockets and driven sprockets, and a second power motor connected to one of the axles via a transmission component. The plurality of driving sprockets, driven sprockets, and corresponding transmission chains are located between pairs of adjacent slides at the front and rear ends of the frame. A main transmission sprocket and a coaxial driven power motor sprocket are provided on the frame behind the driving sprocket axle. The main transmission sprocket is connected to the driven transmission sprocket sleeved on the driving sprocket axle via a corresponding transmission chain, and the driven power motor sprocket is connected to the driving power motor driving sprocket on the second power motor main shaft located at the bottom of the frame via a corresponding transmission chain.

[0025] Furthermore, the transmission assembly can also be a combination of other conventional transmission belts and pulleys to transport goods placed on the rack.

[0026] The present invention has the following advantages and effects: By adopting the above solution, the lifting fork can be easily moved back and forth along the platform slide by manipulating the telescopic translation mechanism, and can be extended or retracted from the opening at the front end of the platform slide, so that all the goods placed on the lifting fork can be transferred to the carriage through the rear door of the carriage to complete one-time loading, or all the goods in the carriage can be forked onto the lifting fork and then moved out to complete one-time unloading. This solves the many inconveniences caused by repeated manual handling of goods. By raising the lifting fork, the goods are removed from the frame, or by lowering the lifting fork, the goods are placed on the frame and supported by it. Then, the goods are moved, placed or adjusted on the frame by the goods conveying mechanism. Attached Figure Description

[0027] Figure 1 This is a front view of the structure of the present invention;

[0028] Figure 2 for Figure 1 Top view;

[0029] Figure 3 for Figure 1 Cross-sectional structural diagram;

[0030] Figure 4 for Figure 1 Longitudinal section structural diagram;

[0031] Figure 5 This is an isometric view of the present invention;

[0032] Figure 6 This is a diagram of the upper moving fork structure;

[0033] Figure 7 This is a diagram of the lower moving fork structure;

[0034] Figure 8 This is a cross-sectional structural diagram of the lifting slide fork;

[0035] Figure 9 for Figure 1 A partial sectional view;

[0036] Figure 10 for Figure 1 A partial view;

[0037] Figure 11 for Figure 2 A magnified view of a portion of the image. Detailed Implementation

[0038] The present invention will now be further described with reference to the accompanying drawings.

[0039] The cargo loading and unloading platform provided by the present invention includes: a frame 1, a plurality of open-fronted slide rails 8 arranged side by side on the frame 1, lifting forks 2 respectively disposed in the corresponding slide rails 8, a translation mechanism 3 disposed on the frame 1 for manipulating the movement of the lifting forks 2, and a cargo conveying mechanism 7 disposed on the frame 1 and located on the slide rails 8, such as Figure 1 , Figure 2 This allows the telescopic translation mechanism 3 to drive the lifting fork 2 to move back and forth along the slide rail 8, and extend or retract from the opening at the front end of the slide rail 8. This allows all the goods placed on the lifting fork 2 to be moved through the rear door of the carriage to the carriage, completing a one-time full-vehicle loading, or all the goods in the carriage to be forked onto the lifting fork 2 and then moved out, completing a one-time full-vehicle unloading. This solves the many inconveniences caused by repeated manual handling of goods. By raising the lifting fork 2, the goods are removed from the frame 1, or by lowering the lifting fork 2, the goods are placed on the frame 1 and supported by it. Then, the goods are moved, placed, or their position adjusted on the frame 1 by the goods conveying mechanism 7.

[0040] The frame 1 is a horizontal rectangular frame 4 with an open front end and a closed rear end. This horizontal rectangular frame 4 consists of multiple spaced longitudinal beams 5 and transverse beams 6 located at the rear ends of the longitudinal beams 5. Furthermore, multiple transverse connecting rods 24 are spaced along the bottom of the horizontal rectangular frame 4 from one end of the longitudinal beams 5 to the other end. Figure 2 , Figure 5 This allows for the fixing and installation of the slide rails 8, lifting forks 2, various transmission components, and drive equipment via the frame 1, and for the carrying of goods and pallets;

[0041] The slide 8 is formed by the upright plates 25 on both sides and the horizontal base plate 26, creating an upward-opening third U-shaped long frame. This third U-shaped long frame is divided into two segments, which are fixedly connected to each other. The third U-shaped long frame is longitudinally positioned between adjacent longitudinal beams 5 of the frame 1. Each third U-shaped long frame has an open front and a closed rear. The lifting fork 2 slides within the corresponding third U-shaped long frame, and its length is adapted to the length of the third U-shaped long frame. Figure 5 So that the lifting slide fork 2 can slide back and forth along the third U-shaped long frame and slide out or in from the opening at the front end of the third U-shaped long frame;

[0042] The horizontal base plate 26 of the slide rail 8 is provided with a chain groove 32 that mates with the drive chain 13, such as... Figure 8 This is to prevent horizontal deformation of the drive chain 13 when it moves under load through the chain groove 32, thereby improving the stability of the lifting fork 2 moving within the slide rail 8.

[0043] The lifting fork 2 includes a lower moving fork 14, an expansion lifting mechanism 9, an upper moving fork 11, and a translation mechanism. The lower moving fork 14 is movably fitted into the upper moving fork 11, forming a first accommodating space between the upper moving fork 11 and the lower moving fork 14. The expansion lifting mechanism 9 is located within this first accommodating space and drives the upper moving fork 11 to vertically rise and fall along the lower moving fork 14. A second accommodating space is formed between the lower moving fork 14 and the slide rail 8. The translation mechanism is located within this second accommodating space and drives the upper and lower moving forks 11 and 14 to translate along the slide rail 8. Figure 8 ,in:

[0044] The upper moving fork 11 is formed by two vertical plates 27 and a horizontal top plate 28, creating a downward-facing first U-shaped long frame. Vertical positioning slides 15 are spaced apart on the inner surfaces of the two vertical side plates 27 of this first U-shaped long frame. Figure 6 ;

[0045] The lower moving fork 14 is formed by two vertical side plates 27 and a horizontal top plate 28, creating a downward-facing second U-shaped elongated frame. Vertical positioning grooves 16, which mate with vertical positioning slide bars 15, are spaced apart on the outer surfaces of the two vertical side plates 27 of this second U-shaped elongated frame. Figure 7 ;

[0046] The top of the lower moving fork 14 is inserted into the bottom opening of the upper moving fork 11, and a number of vertical positioning slide bars 15 are slidably engaged with a number of corresponding vertical positioning slide grooves 16.

[0047] The vertical positioning slide bar 15 and vertical positioning slide groove 16, which are interconnected by the upper and lower moving forks 11 and 14, play a good role in lifting, limiting and sliding.

[0048] The first and second U-shaped elongated frames of the upper and lower moving forks 11 and 14 are each composed of multiple interconnected segments. Each pair of segments is connected to the others by a rotating connector, which is a hinge. This hinge includes a movable connecting plate 29 located between adjacent vertical side plates 27, and hinge shafts 30 located at both ends of the movable connecting plate 29 and connected to the corresponding vertical side plates 27. Figure 6 , Figure 7 In order to enable the upper and lower moving forks 11 and 14 to have good height difference adjustment capability through multiple segmented connections, thereby improving the applicability of the lifting slide fork 2;

[0049] Obviously, the rotating connector is a conventional hinge or a conventional fastener, which enables the multiple segments of the upper and lower moving forks to have good height difference adjustment capability and reduce the shortcomings of rigid connection;

[0050] The expansion lifting mechanism 9 is configured as an expansion body with a length adapted to the length of the upper and lower moving forks 11 and 14 and a hollow interior. The expansion body is a hollow elongated air bag 31. The medium inlet and outlet of the elongated air bag 31 is located between the ends of the upper and lower moving forks 11 and 14. It is connected to an external medium supply device through a medium conveying pipeline so that, as needed, gas or liquid can be injected into the hollow elongated air bag 31 to expand it and push the upper moving fork 11 to rise, and vice versa, thereby realizing the height adjustment of the lifting slide fork 2.

[0051] The upper moving fork 11 has a flat plate bracket 17 at its end that is adapted to the elongated airbag 31, and the lower moving fork 14 has a downwardly inclined surface 18 at its end that is adapted to the elongated airbag 31. This allows the length of the elongated airbag 31 to be limited by the cooperation of the flat plate bracket 17 and the downwardly inclined surface 18 at the same end, ensuring that it remains within the upper and lower moving forks 11 and 14. Figure 6 , Figure 7 ;

[0052] The translation mechanism includes a moving component and a driving component. The moving component is rotatably disposed within the second accommodating space. The driving component is disposed outside the slide rail 8 and connected to the moving component via the chain inlet / outlet 19 on the slide rail 8. This allows the upper moving fork 11 to be lifted by the expansion lifting mechanism 9, so that the goods can be detached from the frame 1 when it is raised and placed on the slide rail 8 and supported by it when it is lowered. The translation mechanism then facilitates the reciprocating movement of the upper and lower moving forks 11 and 14 along the slide rail 8.

[0053] The moving assembly includes: several roller sets 12, a drive chain 13 and an adjustment frame. The roller set 12 includes a wheel axle connected to the inner side of the vertical plate 27 on both sides of the lower moving fork 14, and a roller 33 rotatably mounted on the wheel axle and rollingly contacting the slide rail 8, so that the roller 33 can drive the upper and lower moving forks 11 and 14 to move on the slide rail 8, thereby realizing the extension or retraction of the lifting slide fork 2.

[0054] After the drive chain 13 is wound around the drive assembly outside the slide rail 8, its two ends extend inward through the chain inlet / outlet 19 on the slide rail 8 and are connected to the corresponding adjustment frame respectively.

[0055] The drive assembly includes: a drive sprocket 20 located below the slide rail 8 and mating with the drive chain 13; both ends of the drive sprocket 20's axle are respectively rolledly connected to the bearings 34; one end of the drive sprocket 20's axle is connected to the main shaft of the first power unit 35, such as... Figure 8 , Figure 9 , Figure 10 , Figure 4 So that under the drive of the first power machine 35, the drive chain 13 is moved by the drive sprocket 20, and then several roller groups 12 and the lower moving fork 14 and the upper moving fork 11 move synchronously along the horizontal base plate 26 of the slide rail 8, so as to realize the extension or retraction of the lifting slide fork 2.

[0056] Adjustment brackets are respectively located at both ends of the lower moving fork 14, and include: fixed blocks 38 respectively located between the vertical side plates 27 at both ends of the lower moving fork 14; movable blocks 36 respectively connected to both ends of the drive chain 13; the movable blocks 36 are screwed to the inner end of the first horizontal screw 37; the outer end of the first horizontal screw 37 extends outward through the through hole on the fixed block 36; and a horizontal plate 39 extending towards the drive chain 13 is provided on the top of the fixed block 38, the horizontal plate 39 having a horizontal through groove; and a vertical limiting rod 40 is provided on the top of the movable block 36, the top of which is placed in the horizontal through groove on the horizontal plate 39. Figure 9 So that when the first horizontal screw 37 is rotated, the movable block 36 is driven to move along the horizontal through groove on the first horizontal screw 37 and the horizontal plate 39, thereby adjusting the tension of the drive chain 13;

[0057] Below the chain inlet / outlet 19 are front and rear guide wheels 21 that mate with the drive chain 13. These guide wheels 21 are connected to corresponding movable wheel frames 22 via axles. The movable wheel frames 22 are screwed to fixed frames 23 located on the bottom surface of the horizontal base plate 26 of the platform slide 8 via a second horizontal screw 41. Figure 10 So that when the adjusting frame adjusts the tension of the drive chain 13, the second horizontal screw 41 is operated simultaneously, which drives the movable wheel frame 22 and the front and rear guide wheels 21 to move adaptively to meet the tension adjustment requirements of the drive chain 13.

[0058] Obviously, the adjustment frame can also be other conventional adjustment mechanisms;

[0059] The cargo conveying mechanism 7 includes: a moving chain 47 respectively provided on multiple slide rails 8, which can drive the cargo on them to move, and the conveying surface of the moving chain 47 is higher than the top surface of the lifting slide fork 2 in the lowered state. The moving chain 47 is connected to the power machine through a transmission component.

[0060] The transmission assembly includes a plurality of driving sprockets 46 and driven sprockets located at the front and rear ends of the frame 1 via corresponding axles. A moving chain 47 is respectively sleeved between the corresponding driving sprockets 46 and driven sprockets. A second power unit 42 is connected to one of the axles via a transmission component. The plurality of driving sprockets 46, driven sprockets and corresponding transmission chains are respectively located between two adjacent slides at the front and rear ends of the frame 1. Furthermore, a main transmission sprocket 43 and a coaxial power unit driven sprocket 45 are provided on the frame 1 behind the axle of the driving sprocket 46. The main transmission sprocket 43 is connected to the driven transmission sprocket 44 sleeved on the axle of the driving sprocket 46 via a corresponding transmission chain. The power unit driven sprocket 45 is connected to the power unit driving sprocket on the main shaft of the third power unit 42 located at the bottom of the frame 1 via a corresponding transmission chain.

[0061] Obviously, the transmission assembly can also be a combination of other conventional transmission belts and pulleys to transport goods placed on the rack.

Claims

1. A cargo loading platform comprising a frame, characterised in that The rack is provided with multiple chutes with open front ends arranged side by side, lifting slides arranged in the chutes respectively, a translation mechanism arranged on the rack and used to control the movement of the lifting slides, and a goods conveying mechanism arranged on the rack and located on the chutes; The lifting slide comprises a lower movable fork, an expansion lifting mechanism, an upper movable fork and a translation mechanism, the lower movable fork is movably sleeved on the upper movable fork, a first accommodating space is formed between the upper movable fork and the lower movable fork, the expansion lifting mechanism is arranged in the first accommodating space and drives the upper movable fork to vertically lift along the lower movable fork, a second accommodating space is formed between the lower movable fork and the chute, and the translation mechanism is arranged in the second accommodating space and drives the upper and lower movable forks to translate along the chute; The upper movable fork is surrounded by two vertical plates and a horizontal top plate or an arc-shaped top plate to form a first U-shaped long frame with an opening downward; The lower movable fork is surrounded by two vertical plates and a horizontal top plate or an arc-shaped top plate to form a second U-shaped long frame with an opening downward; The chute is surrounded by two vertical plates and a horizontal bottom plate to form a third U-shaped long frame with an opening upward; Vertical positioning slides or vertical positioning grooves are arranged on the vertical plates on the two sides of the upper and lower movable forks respectively; The upper and lower movable forks are movably connected by a plurality of segmented bodies through rotating connectors; The chute is fixedly connected by a plurality of segmented bodies, and the horizontal bottom plate of the chute is provided with a chain groove matched with the driving chain; The end of the upper movable fork is provided with a flat plate support matched with the expansion body, and the end of the lower movable fork is provided with a downward inclined surface matched with the expansion body.

2. The cargo loading platform of claim 1, wherein The expansion lifting mechanism is an expansion body with a length matched with the lengths of the upper and lower movable forks and a hollow interior, a medium inlet and outlet of the expansion body is located between the ends of the upper and lower movable forks, and the expansion body is connected with an external medium supply device through a medium conveying pipeline.

3. The cargo loading platform of claim 1, wherein The translation mechanism comprises a moving assembly and a driving assembly, the moving assembly is rollingly arranged in the second accommodating space, and the driving assembly is arranged outside the chute and connected with the moving assembly through the chain inlets and outlets on the chute.

4. The cargo loading platform of claim 3, wherein The moving assembly comprises a plurality of roller groups, a driving chain and adjusting frames, each roller group comprises an axle connected with the inner side of the vertical plate on the two sides of the lower movable fork and a roller rotatably arranged on the axle and rollingly contacting the chute, the adjusting frames are arranged at the two ends of the lower movable fork respectively, and the driving chain is connected with the adjusting frames at the two ends after extending inward to the chute through the chain inlets and outlets on the chute after being wound on the driving assembly outside the chute. The driving assembly comprises a driving sprocket matched with the driving chain and located below the chute, the axle of the driving sprocket is rollingly connected with the bearing seat at the two ends respectively, and one end of the axle of the driving sprocket is connected with the main shaft of the power machine.

5. The cargo loading platform of claim 4, wherein The adjusting frame comprises a fixed block arranged between the vertical side plates at the two ends of the lower movable fork respectively, a movable block connected with the two ends of the driving chain respectively, the movable block is screw-connected with the inner end of the first horizontal screw, the outer end of the first horizontal screw extends outward through the through hole in the fixed block, and a horizontal plate extending to the driving chain direction is arranged on the top of the fixed block, the horizontal plate is provided with a horizontal groove, and a vertical limiting rod is arranged on the top of the movable block and located in the horizontal groove on the horizontal plate.

6. The cargo loading platform of claim 4, wherein the The front and rear guide wheels matched with the driving chain are arranged below the chain entrance and exit, and are connected with corresponding movable wheel frames through wheel shafts, and the movable wheel frames are screw-connected with corresponding fixed frames arranged on the bottom surface of the horizontal bottom plate of the ramp slide through second horizontal screw rods.

7. The cargo loading platform of claim 1, wherein The goods conveying mechanism comprises moving chains arranged on the plurality of slides respectively to move the goods on the moving chains, and a conveying surface of the moving chain is higher than a top surface of the lifting slide fork in the landing state, and the moving chain is connected with the power machine through a transmission assembly.

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