Carrier plate for material loading and unloading and material loading and unloading platform

By designing a carrier plate for lifting roller components and drive components, the problems of high labor intensity and low efficiency in traditional loading and unloading are solved, and convenient and stable material loading and unloading are achieved, and multiple scenarios are adapted to use.

CN223267574UActive Publication Date: 2025-08-26AEROSPACE WANXIN SCI & TECH CHENGDU
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Patent Information

Application Number
CN202421510948.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-08-26
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

The loading and unloading process of traditional containers and vans is complicated, with high labor intensity, long time and low efficiency. It is difficult to load and unload goods in harsh environments, and it depends on large external loading and unloading equipment with poor timeliness.

Method used

A carrier plate for loading and unloading of materials is designed, including a load frame, roller assembly and drive assembly. The roller assembly can be lifted and lowered, combined with the limiting mechanism and drive assembly to achieve convenient transportation and stable stacking of goods. The carrier plate can be spliced ​​into a material loading and unloading platform, and the drive assembly and force transmission assembly can be used to improve loading and unloading efficiency.

Benefits of technology

Reduce labor intensity, improve loading and unloading efficiency, adapt to the needs of materials of different sizes, has a simple structure, adapt to heavy objects handling, and the carrier plate can be placed firmly to meet the use of multiple scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of material loading and unloading, and particularly discloses a carrier plate for material loading and unloading and a material loading and unloading platform, the carrier plate comprises a loading frame, a roller assembly and a driving assembly, the roller assembly is arranged in the loading frame and can move along the height direction of the loading frame, and the driving assembly is arranged in the loading frame and can move along the height direction of the loading frame. The lifting mechanism is used for driving the roller assembly to lift in the loading frame; the material loading and unloading platform comprises one or more loading and unloading assemblies, each loading and unloading assembly comprises a plurality of carrier plates which are sequentially spliced in the longitudinal direction of the carrier plates, a power source is arranged on one carrier plate located at the end of the loading and unloading assembly, and the adjacent carrier plates are connected through a force transmission assembly. According to the loading and unloading platform, a proper number of carrier plates can be combined and spliced according to the size of the material storage platform, the loading and unloading transfer requirements of different numbers of materials are met, the materials can be easily transferred to a proper carrying position under the condition that the materials are heavy and difficult to carry, and the material transfer efficiency is improved.
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Description

Technical Field

[0001] The utility model belongs to the technical field of material loading and unloading, and in particular relates to a carrier plate and a material loading and unloading platform for loading and unloading materials. Background Art

[0002] The traditional loading and unloading process of containers and vans is very cumbersome. It requires at least 3-6 people to set up the cargo loading and unloading operation, and the technology is quite backward. It is not only labor-intensive and time-consuming, but also slow in and out of cargo. In addition, it is impossible to complete the loading and unloading of single large and heavy cargo. Especially in tropical regions, the environment is particularly harsh, which brings greater difficulties to loading and unloading. It causes warehouse trucks to wait for a long time, even waiting for more than ten hours, and the equipment utilization rate is relatively low. When loading and unloading goods in ordinary open-top containers, it is necessary to first remove the movable steel roof or soft material box roof, and then use a large crane to lift the cargo into the box. After that, the crane needs to lift the box roof again, buckle it back, and reinforce it before the cargo can be loaded.

[0003] As can be seen from the above description, the loading and unloading of containers and vans in the existing technology requires external large-scale loading and unloading equipment, which is time-consuming and labor-intensive. Moreover, if the external large-scale loading and unloading equipment cannot be put in place in a timely manner, the cargo cannot be loaded and unloaded, resulting in relatively low loading and unloading efficiency. Therefore, how to improve the loading and unloading convenience of containers and vans is a technical problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] The purpose of the utility model is to provide a carrier plate and a material loading and unloading platform for loading and unloading materials, so as to solve the problems of high labor intensity, long time for loading and unloading materials, and low efficiency of loading and unloading materials in existing cargo loading and unloading work.

[0005] The utility model is achieved through the following technical solutions:

[0006] A carrier for loading and unloading materials includes a carrier frame, a roller assembly and a drive assembly. The roller assembly is arranged in the carrier frame and can move along the height direction of the carrier frame. The drive assembly is arranged in the carrier frame and is used to drive the roller assembly to rise and fall in the carrier frame, so that the roller assembly can rise to a position higher than the upper end surface of the carrier frame, or when the materials are on the roller assembly, the roller assembly can be lowered to a position lower than the upper end surface of the carrier frame to place the materials on the carrier frame.

[0007] In some embodiments, the driving assembly includes a power source and a connecting rod frame connected to the power source. The connecting rod frame is arranged below the roller assembly. A plurality of connecting parts are arranged between the connecting rod frame and the roller assembly. One end of the connecting part is rotatably connected to the connecting rod frame, and the other end is rotatably connected to the roller assembly. The plurality of connecting parts, the connecting rod frame and the roller assembly form a parallelogram connecting rod mechanism; a limiting mechanism is arranged between the roller assembly and the load frame. When the power source drives the connecting rod frame to move in the horizontal direction, the roller assembly is driven to perform lifting and lowering movements under the action of the connecting parts and the limiting mechanism.

[0008] In some embodiments, the limiting mechanism includes a connecting shaft arranged at one end of a connecting member connected to the roller assembly, the connecting member and the roller assembly are connected by the connecting shaft, a groove is provided on one end of the connecting shaft facing the carrier frame, a fixing pin is provided on the carrier frame, the fixing pin extends into the groove, and the diameter of the fixing pin is smaller than the diameter of the groove.

[0009] In some embodiments, a plurality of casters are provided in the loading frame, and the casters are rotatably connected to the loading frame. When the casters are rotated, the casters can be extended out of the lower end surface of the loading frame or retracted into the loading frame.

[0010] A material loading and unloading platform comprises a carrier plate.

[0011] The material loading and unloading platform includes one or more loading and unloading components, which include multiple carriers spliced ​​in sequence along the longitudinal direction of the carrier. The power source is arranged on a carrier located at the end of the loading and unloading component. One end of the power source is connected to the carrier, and the other end is connected to the connecting rod frame on the carrier. The connecting rod frames on adjacent carriers are connected in sequence through force transmission components.

[0012] In some embodiments, the material loading and unloading platform includes a plurality of loading and unloading components, which are sequentially spliced ​​along the transverse direction of the carrier plate.

[0013] In some embodiments, a limiting assembly is provided on both sides of the material loading and unloading platform in the longitudinal direction. The limiting assembly includes a limiting baffle. The lower end of the limiting baffle is fixedly connected to the loading frame, and the upper end of the limiting baffle protrudes from the upper end surface of the loading frame.

[0014] In some embodiments, a portion of the limit baffle that exceeds the height of the object-carrying frame is provided with a limit rolling assembly, and the limit rolling assembly includes a plurality of adjustment rollers rotatably connected to the limit baffle.

[0015] In some embodiments, a fastener is provided on the limit baffle, and the limit baffle is connected to the cargo frame through the fastener. The fastener is provided with a fixing part for connecting the limit baffle and the vehicle compartment.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] 1) The carrier is provided with a drive assembly and a roller assembly. When loading and unloading goods, the drive assembly drives the roller assembly to rise above the upper end surface of the carrier frame, and the materials come into contact with the roller assembly, so that the materials piled on the carrier can be transported on the roller assembly, which reduces labor intensity and improves loading and unloading efficiency. When the drive assembly drives the roller assembly to fall below the upper end surface of the carrier frame, the bottom of the materials directly contacts the upper end surface of the carrier frame, which facilitates the direct stacking of materials on the carrier frame and makes the stacking more stable.

[0018] 2) The carrier plate has the advantage of being small and convenient. According to the size of the materials, an appropriate number of carrier plates can be combined and spliced ​​into a material loading and unloading platform to meet the loading, unloading and transfer needs of materials of different sizes. Each column of the material loading and unloading platform only needs to be equipped with one power source, and the connecting rod frames on adjacent carrier plates are connected in sequence through the force transmission component. Its structure is simple. When the materials are heavy and difficult to carry, they can be easily transferred to the appropriate handling position, thereby improving the efficiency of material transfer.

[0019] 3) The carrier is equipped with multiple casters that are rotatably connected to the carrier frame. When the carrier is working, the casters are retracted into the carrier frame so that the carrier can be stably placed on the ground. When the carrier needs to be removed, the casters are extended to the lower end surface of the carrier frame so that the carrier can be easily pushed away. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is a structural diagram of a carrier board in an embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the carrier board in the embodiment of the present utility model;

[0023] Figure 3 This is a schematic structural diagram of the limiting mechanism in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic structural diagram of the casters in the embodiment of the present utility model;

[0025] Figure 5 This is a structural diagram of a material loading and unloading platform in an embodiment of the present utility model;

[0026] Figure 6 This is a bottom view of the material loading and unloading platform in the embodiment of the present utility model;

[0027] Figure 7 This is a schematic structural diagram of the force transmission component in an embodiment of the present utility model;

[0028] Figure 8 This is a structural diagram of the limit assembly in an embodiment of the present utility model;

[0029] Figure 9 This is a schematic diagram of an embodiment of the present invention in which the roller assembly is lower than the upper end surface of the object-carrying frame;

[0030] Figure 10 This is a schematic diagram of an embodiment of the present invention in which the roller assembly is higher than the upper end surface of the loading frame.

[0031] Among them: 1. Carrying frame;

[0032] 2. Roller assembly, 21. Connecting rod frame, 22. Tray frame, 23. Roller, 24. Connector, 25. Limiting mechanism, 27. Circlip, 251. Connecting shaft, 252. Groove;

[0033] 3. Drive components;

[0034] 4. Casters;

[0035] 5. Limiting assembly, 51. Limiting baffle, 52. Fastener, 521. Fixing piece, 53. Adjusting roller;

[0036] 6. Force transmission assembly, 61. Force transmission rod, 62. Connector, 63. Lock nut. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in combination with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments.

[0038] Example 1

[0039] like Figure 1 、 Figure 2As shown, a carrier for loading and unloading materials includes a carrier frame 1, a roller assembly 2 and a drive assembly 3. The roller assembly 2 is arranged in the carrier frame 1 and can move along the height direction of the carrier frame 1. The drive assembly 3 is arranged in the carrier frame 1 and is used to drive the roller assembly 2 to rise and fall in the carrier frame 1, so that the roller assembly 2 can rise to a position higher than the upper end surface of the carrier frame 1, or when the materials are on the roller assembly 2, the roller assembly 2 can be lowered to a position lower than the upper end surface of the carrier frame 1 to place the materials on the carrier frame 1.

[0040] The carrier plate is provided with a driving assembly 3 and a roller assembly 2, such as Figure 10 As shown, when loading and unloading goods, the driving assembly 3 drives the roller assembly 2 to rise above the upper end surface of the loading frame 1, and the materials come into contact with the roller assembly 2, so that the materials piled on the carrier can be transported on the roller assembly 2, reducing labor intensity and improving loading and unloading efficiency; Figure 9 As shown, when the driving assembly 3 drives the roller assembly 2 to descend below the upper end surface of the loading frame 1, the bottom of the materials is in direct contact with the upper end surface of the loading frame 1, which facilitates the direct stacking of materials on the loading frame 1 and makes the stacking more stable.

[0041] The driving assembly 3 includes a power source and a connecting rod frame 21 connected to the power source. The connecting rod frame 21 is arranged below the roller assembly 2. A plurality of connecting parts 24 are arranged between the connecting rod frame 21 and the roller assembly 2. One end of the connecting part 24 is rotatably connected to the connecting rod frame 21, and the other end is rotatably connected to the roller assembly 2. The plurality of connecting parts 24, the connecting rod frame 21 and the roller assembly 2 form a parallelogram connecting rod mechanism; a limiting mechanism 25 is arranged between the roller assembly 2 and the loading frame 1. When the power source drives the connecting rod frame 21 to move in the horizontal direction, the roller assembly 2 is driven to move up and down under the action of the connecting part 24 and the limiting mechanism 25.

[0042] In some embodiments, the power source is a horizontally arranged cylinder, and the connecting rod frame 21 is arranged in the carrier frame 1 and can only move in the horizontal direction in the carrier frame 1. The power source is arranged horizontally and connected to the connecting rod frame 21, which saves the internal space of the carrier frame 1. Multiple connecting parts 24, the connecting rod frame 21 and the roller assembly 2 form a parallelogram connecting rod mechanism. The cylinder drives the connecting rod frame 21 to move in the horizontal direction, and through the joint action of the connecting part 24 and the limiting mechanism 25, the horizontal movement of the connecting rod frame 21 is converted into the lifting movement of the roller assembly 2, so that the roller assembly 2 can rise to above the upper end surface of the carrier frame 1, or can fall to below the upper end surface of the carrier frame 1.

[0043] like Figure 2 、 Figure 3As shown, the limiting mechanism 25 includes a connecting shaft 251 disposed at one end of a connecting member 24 connected to the roller assembly 2. The connecting member 24 and the roller assembly 2 are connected via the connecting shaft 251. A groove 252 is provided on the end of the connecting shaft 251 facing the carrier frame 1. A fixing pin is provided on the carrier frame 1 and extends into the groove 252. The diameter of the fixing pin is smaller than that of the groove 252. When the connecting rod frame 21 moves horizontally under the action of the power source, the roller assembly 2 is raised and lowered by the change in the position of the fixing pin in the groove 252 under the action of the parallelogram-shaped linkage mechanism formed by the multiple connecting members 24, the connecting rod frame 21, and the roller assembly 2.

[0044] like Figure 2 As shown, the roller assembly 2 includes a connecting rod frame 21, a tray frame 22 and a plurality of rollers 23 rotatably arranged on the tray frame 22. The plurality of rollers 23 are placed side by side in the slots of the tray frame 22 and are fixed by a retaining spring 27. The connecting rod frame 21 is arranged at the bottom of the tray frame 22 and is connected to the driving assembly 3. The driving assembly 3 can drive the connecting rod frame 21 to move and thereby drive the loading frame 1 to rise and fall.

[0045] like Figure 2 、 Figure 4 As shown, a plurality of casters 4 are provided in the loading frame 1, and the casters 4 are rotatably connected to the loading frame 1. When the loading board is working, the rotating casters 4 are retracted into the loading frame 1 so that the loading board can be stably placed on the ground; when the loading board needs to be removed, the rotating casters 4 are extended to the lower end surface of the loading frame 1, so that the loading board can be easily pushed away.

[0046] Example 2

[0047] like Figure 5 、 Figure 6 As shown, a material loading and unloading platform includes the carrier plate in the above embodiment.

[0048] Example 3

[0049] like Figure 5 、 Figure 6 As shown, a material loading and unloading platform includes one or more loading and unloading components, and the loading and unloading components include multiple carriers spliced ​​in sequence along the longitudinal direction of the carriers. The power source is arranged on a carrier located at the end of the loading and unloading component, one end of the power source is connected to the carrier, and the other end is connected to the connecting rod frame 21 on the carrier, and the connecting rod frames 21 on adjacent carriers are connected in sequence through the force transmission component 6.

[0050] In some embodiments, a material loading and unloading platform includes multiple loading and unloading components, which are spliced ​​sequentially along the transverse direction of a carrier plate.

[0051] According to the size of the materials, a suitable number of carrier plates can be combined and spliced ​​into a material loading and unloading platform to meet the loading, unloading and transportation needs of materials of different sizes. Each column of the material loading and unloading platform only needs to be equipped with one power source, and the connecting rod frames 21 on adjacent carrier plates are connected in sequence through the force transmission component 6. Its structure is simple. When the materials are difficult to carry due to their heavy weight, the materials can be easily transferred to the appropriate transportation position, thereby improving the efficiency of material transportation.

[0052] like Figure 7 As shown, the force transmission assembly 6 includes a force transmission rod 61, and both ends of the force transmission rod 61 are screwed with joints 62. The force transmission rod 61 and the joint 62 cooperate to connect the connecting rod frame 21 of two adjacent carrier plates, so that multiple carrier plate frames can move synchronously; through the screw connection between the joint 62 and the force transmission rod 61, the length of the force transmission assembly 6 can be easily adjusted, making it easier for the force transmission assembly 6 to connect the two carrier plates.

[0053] Furthermore, a locking nut 63 is threaded on the joint 62 between the joint 62 and the force transmission rod 61. After the joint 62 and the force transmission rod 61 are adjusted into place, the locking nut 63 is used to fix the length of the force transmission rod 61 to prevent the loading and unloading platform from becoming unstable due to changes in the length of the force transmission rod 61 during use.

[0054] like Figure 5 、 Figure 8 As shown, limit assemblies 5 are provided on both sides of the material loading and unloading platform in the longitudinal direction. The limit assemblies 5 include limit baffles 51. The lower ends of the limit baffles 51 are fixedly connected to the loading frame 1, and the upper ends of the limit baffles 51 protrude from the upper end surface of the loading frame 1. The limit baffles 51 prevent materials from falling off the platform during transportation.

[0055] A limited rolling assembly is installed on the portion of the baffle plate 51 that extends beyond the height of the load frame 1. This assembly includes multiple adjustment rollers 53 rotatably connected to the baffle plate 51. These adjustment rollers 53 are used to ensure smoother transport of materials on both sides of the platform. Furthermore, the end of the baffle plate 51 connected to the adjustment rollers 53 is curved, with a prominent center section. Once materials enter the platform, the curved structure of the baffle plate 51 and the adjustment rollers 53 act to pull them toward the center, ensuring they can be transported on the load frame.

[0056] A fastener 52 is provided on the limit baffle 51, one end of the fastener 52 is fixedly connected to the limit baffle 51, and the other end is fixedly connected to the cargo frame 1. The fastener 52 is used to fix the limit baffle 51 and the cargo frame 1, so that the structure of the loading and unloading platform is more stable. A fixing part 521 for connecting the limit baffle 51 and the carriage is provided on the fastener 52. The carriage is connected to the loading and unloading platform through the fixing part 521, so that the loading and unloading platform can be further stabilized in the carriage.

[0057] When using a carriage for loading cargo, multiple of the above-mentioned carriers can be first moved into the carriage for assembly and splicing to form a first loading and unloading platform, and the second loading and unloading platform that is also assembled can be placed outside the carriage, so that the first loading and unloading platform and the second loading and unloading platform form a cargo transportation channel, and the driving component 3 is started to make the roller component 2 rise above the upper surface of the cargo frame 1, so that the cargo can be quickly transported between the first loading and unloading platform and the second loading and unloading platform.

[0058] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. used to indicate the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the present invention.

[0059] Furthermore, the use of terms such as "horizontal" and "vertical" in the description of this invention does not necessarily mean that the components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that the direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0060] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0061] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention falls within the scope of protection of the present invention.

Claims

1. A carrier plate for loading and unloading materials, characterized in that: The invention comprises a loading frame (1), a roller assembly (2) and a driving assembly (3), wherein the roller assembly (2) is arranged in the loading frame (1) and can move along the height direction of the loading frame (1), and the driving assembly (3) is arranged in the loading frame (1) and is used to drive the roller assembly (2) to rise and fall in the loading frame (1), so that the roller assembly (2) can rise to a position higher than the upper end surface of the loading frame (1), or when materials are located on the roller assembly (2), the roller assembly (2) can be lowered to a position lower than the upper end surface of the loading frame (1), so that the materials are placed on the loading frame (1).

2. The carrier plate for loading and unloading materials according to claim 1, characterized in that: The driving assembly (3) includes a power source and a connecting rod frame (21) connected to the power source, the connecting rod frame (21) is arranged below the roller assembly (2), and a plurality of connecting members (24) are arranged between the connecting rod frame (21) and the roller assembly (2), one end of the connecting member (24) is rotatably connected to the connecting rod frame (21), and the other end is rotatably connected to the roller assembly (2), and the plurality of connecting members (24), the connecting rod frame (21) and the roller assembly (2) form a parallelogram connecting rod mechanism; A limiting mechanism (25) is provided between the roller assembly (2) and the loading frame (1). When the power source drives the connecting rod frame (21) to move in the horizontal direction, the roller assembly (2) is driven to move up and down under the action of the connecting member (24) and the limiting mechanism (25).

3. The carrier plate for loading and unloading materials according to claim 2, characterized in that: The limiting mechanism (25) includes a connecting shaft (251) provided at one end of a connecting member (24) connected to the roller assembly (2), the connecting member (24) and the roller assembly (2) are connected via the connecting shaft (251), a groove (252) is provided on one end of the connecting shaft (251) facing the carrier frame (1), a fixing pin is provided on the carrier frame (1), the fixing pin extends into the groove (252), and the diameter of the fixing pin is smaller than the diameter of the groove (252).

4. The carrier plate for loading and unloading materials according to claim 1, characterized in that: A plurality of casters (4) are provided in the loading frame (1), and the casters (4) are rotatably connected to the loading frame (1). When the casters (4) are rotated, the casters (4) can be extended out of the lower end surface of the loading frame (1) or retracted into the loading frame (1).

5. A material loading and unloading platform, characterized in that: The invention comprises the carrier board according to any one of claims 1 to 4.

6. The material loading and unloading platform according to claim 5, characterized in that: The invention comprises one or more loading and unloading components, wherein the loading and unloading components comprise a plurality of carrier plates spliced ​​in sequence along the longitudinal direction of the carrier plates, the power source of the driving component (3) is arranged on a carrier plate located at the end of the loading and unloading component, one end of the power source is connected to the carrier plate, and the other end is connected to the connecting rod frame (21) on the carrier plate, and the connecting rod frames (21) on adjacent carrier plates are connected in sequence through the force transmission component (6).

7. The material loading and unloading platform according to claim 6, characterized in that: It comprises a plurality of assembly and disassembly components, which are sequentially spliced ​​along the transverse direction of the carrier plate.

8. The material loading and unloading platform according to claim 6, characterized in that: Limiting components (5) are provided on both sides of the material loading and unloading platform in the longitudinal direction. The limiting components (5) include limiting baffles (51). The lower ends of the limiting baffles (51) are fixedly connected to the loading frame (1), and the upper ends of the limiting baffles (51) protrude from the upper end surface of the loading frame (1).

9. The material loading and unloading platform according to claim 8, characterized in that: A limiting rolling assembly is provided on the portion of the limiting baffle (51) that exceeds the height of the object-carrying frame (1). The limiting rolling assembly includes a plurality of adjusting rollers (53) rotatably connected to the limiting baffle (51).

10. The material loading and unloading platform according to claim 8, characterized in that: The limit baffle (51) is provided with a fastener (52), the limit baffle (51) is connected to the load frame (1) via the fastener (52), and the fastener (52) is provided with a fixing member (521) for connecting the limit baffle (51) and the carriage.