Safety module for loading and unloading

Abstract

The utility model discloses a safety module for loading and unloading, which comprises a folding module and a protection element that unfolds or folds along with the folding module; the folding module comprises two fixed rods, the fixed rods are detachably connected with a carriage; the fixed rods are rotatably connected with rotating rods; a first connecting assembly is connected between the two fixed rods; a second connecting assembly is connected between the two rotating rods; one end of the protection element is connected with the first connecting assembly, and the other end is connected with the second connecting assembly; the fixed rods are rotatably connected with a limiting link; the limiting link is provided with a strip-shaped slot; the rotating rods are provided with limiting pieces that are movably inserted into the strip-shaped slot. In terms of safety protection, the module builds a flexible and controllable protective barrier for both sides of the carriage through the cooperation of the folding module and the protection element. When the folding module is unfolded, the protection element is unfolded and forms an effective shield, which can prevent workers from falling from the edge of the carriage and greatly reduce the falling risk caused by unstable standing.

Description

Technical Field

[0001] This utility model relates to the field of cargo loading and unloading safety technology, and in particular to a safety module for loading and unloading cargo. Background Technology

[0002] In the transportation and warehousing of pipes, loading and unloading operations are crucial for ensuring efficient logistics. Currently, the industry commonly uses gantry cranes in conjunction with manual labor to complete the loading and unloading of pipes. Specifically, workers need to assist inside the truck bed during operations, including positioning hooks, adjusting the placement of pipes, and removing lifting devices, to ensure that the gantry crane can accurately lift pipes into or out of the truck bed.

[0003] Because pipes are mostly long and thin with a large weight per piece, the trucks used for transporting pipes currently generally adopt an open-top design to meet the lifting requirements of gantry cranes. While this design can meet the space requirements for lifting operations, it poses significant safety hazards to workers inside the truck during actual operations, especially when the truck is full of pipes.

[0004] Inside the cargo-filled carriage, workers need to stand on top of the pipes to work. However, the sides of the existing carriages usually do not have effective protective structures. If workers slip or lose their balance during movement or operation, they are very likely to fall from the edge of the carriage, causing personal injury. Utility Model Content

[0005] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a safety module installed around the perimeter of a vehicle for loading and unloading cargo.

[0006] A safety module for loading and unloading cargo, designed for this purpose, includes a folding module connected to the vehicle compartment and protective elements that unfold or fold with the folding module.

[0007] The folding module includes two fixed rods spaced apart on the left and right sides, and the fixed rods are detachably connected to the carriage; the fixed rods are rotatably connected to a rotating rod.

[0008] A first connecting assembly is connected between the two fixed rods on the left and right sides;

[0009] A second connecting component is connected between the left and right rotating rods;

[0010] One end of the protective element is connected to the first connecting component, and the other end is connected to the second connecting component.

[0011] The fixed rod is rotatably connected to a limiting link, the limiting link is provided with a strip groove, and the rotating rod is provided with a limiting member that is movably inserted into the strip groove.

[0012] Preferably, the second connecting assembly includes a mounting rod fixedly connected to the rotating rod, the mounting rod being provided with a slot with an opening at at least one end;

[0013] The protective element is fixedly connected to a connector, which is movably inserted into the slot.

[0014] The rotating rod is equipped with a closing block, which is used to close the opening of the slot.

[0015] Preferably, the mounting rod and the rotating rod are connected to each other by bolts.

[0016] Preferably, the first connecting component includes connectors at both ends that are connected to two fixed rods on the left and right, and the protective element is fixedly connected to the connectors.

[0017] Preferably, the connector is fitted with a soft sleeve, and the soft sleeve has a through groove on the side facing the second connecting component, and the protective element passes through the through groove.

[0018] Preferably, the left and right fixed rods are connected to a shaft, and the rotating rod is rotatably connected to the shaft.

[0019] Preferably, the rotating rod includes a first rod body that is rotatably disposed relative to the fixed rod. The first rod body is hollow inside and open at the top. A second rod body is movably inserted into the first rod body.

[0020] Both ends of the second connecting component are fixedly connected to the second rod body;

[0021] Multiple first through holes are arranged on the first rod body along the direction in which the second rod body moves relative to the first rod body;

[0022] Multiple second through holes are arranged on the second rod body along the direction in which the second rod body moves relative to the first rod body;

[0023] Limiting elements are connected in any one of the first through holes and any one of the second through holes.

[0024] Preferably, the fixing rod is provided with a mounting block, and the carriage is provided with a plug-in locking module; the mounting block and the plug-in locking module are detachably connected.

[0025] Preferably, the plug-in locking module includes a plug-in sleeve, a mounting bracket, and a locking pin;

[0026] The plug-in sleeve is fixedly installed in the carriage;

[0027] The mounting block can be inserted into the insertion sleeve and the mounting block is provided with a locking hole;

[0028] The insert sleeve has a pin hole on the wall facing the mounting bracket, and the mounting bracket has a connecting hole; the locking hole, the pin hole, and the connecting hole are interconnected and coaxially arranged.

[0029] The locking pin extends through the communicating hole in a direction away from the locking hole, and a limit handle is provided at the end of the locking pin away from the locking hole;

[0030] The locking pin is connected to the mounting bracket by an elastic element, which is used to drive the locking pin to move and insert into the locking hole.

[0031] Preferably, the end face of the locking pin facing the mounting block is a first inclined surface;

[0032] The lower surface of the mounting block is a second inclined surface.

[0033] Compared with existing technologies, this utility model offers several advantages in terms of safety protection. Through the combination of a folding module and protective elements, it constructs a flexibly adjustable protective barrier on both sides of the carriage. When the folding module unfolds, the protective elements unfold accordingly, forming an effective shield that prevents workers from falling from the carriage edge, significantly reducing the risk of falls due to instability. Simultaneously, the protective structure also provides some restraint on the pipes, reducing the threat to workers from accidental pipe rolling, and specifically addressing the safety issues arising from the smooth surface and round structure of the pipes.

[0034] In terms of ease of operation, the folding module design combines practicality and flexibility. The fixed rod and the carriage are detachably connected, making it easy to install and disassemble according to different work scenarios. The cooperative structure of the rotating rod and the limiting linkage makes the unfolding and folding of the protective elements simple and efficient, without affecting the lifting operation space of the gantry crane, and can quickly form protection during operation, thus improving work efficiency. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the assembly structure of the safety module and the carriage;

[0036] Figure 2 This is a schematic diagram of the separation structure between the safety module and the carriage;

[0037] Figure 3 This is a cross-sectional structural diagram of the safety module and the vehicle body;

[0038] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;

[0039] Figure 5 This is a 3D structural diagram of the safety module;

[0040] Figure 6 This is a schematic diagram of the exploded structure of the security module. Detailed Implementation

[0041] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0043] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0044] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0045] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0046] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0047] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0048] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0049] See Figures 1-6 A safety module for loading and unloading cargo includes a folding module 20 connected to a carriage 10 and a protective element 30 that unfolds or folds with the folding module 20.

[0050] The folding module 20 includes two fixed rods 210 spaced apart on the left and right sides, and the fixed rods 210 are detachably connected to the carriage 10; the fixed rods 210 are rotatably connected to a rotating rod 220.

[0051] A first connecting component 250 is connected between the two fixed rods 210 on the left and right sides;

[0052] A second connecting component 240 is connected between the two rotating rods 220 on the left and right sides;

[0053] One end of the protective element 30 is connected to the first connecting component 250, and the other end is connected to the second connecting component 240.

[0054] The fixed rod 210 is rotatably connected to the limiting rod 260, the limiting rod 260 is provided with a strip groove 261, and the rotating rod 220 is provided with a limiting member 270 that is movably inserted into the strip groove 261.

[0055] The operating principle of this loading and unloading safety module revolves around the unfolding and folding action of the folding module. Through the coordinated operation of various components, it achieves safety protection for the working area of ​​the cargo compartment, as detailed below:

[0056] Before loading and unloading the pipes, the two fixed rods in the folding module must be securely installed on both sides of the carriage using a detachable connection, ensuring a reliable connection between the fixed rods and the carriage. When the protective structure needs to be deployed, the operator can apply external force to the rotating rod, causing it to rotate upwards around the point of connection with the fixed rod. During this process, the limiting component on the rotating rod slides along the groove of the limiting link, while the limiting link rotates synchronously around the point of connection with the fixed rod. The cooperation between the groove and the limiting component restricts the rotation trajectory and angle of the rotating rod, preventing excessive rotation. As the rotating rod rotates, the second connecting assembly between the two rotating rods moves accordingly, thereby gradually unfolding the protective element from its folded state. Since one end of the protective element is connected to the first connecting assembly between the fixed rods and the other end is connected to the second connecting assembly, when the second connecting assembly moves to the preset position, the protective element is fully extended, forming a closed protective barrier on both sides of the carriage, effectively preventing workers from falling from the edge of the carriage and providing a certain degree of restraint for the pipes.

[0057] See Figure 6 The second connecting assembly 240 includes a mounting rod 241 fixedly connected to the rotating rod 220, the mounting rod 241 having a slot 242 with at least one open end; the protective element 30 is fixedly connected to a connector 310, the connector 310 being movably inserted into the slot 242; the rotating rod 220 is provided with a closing block 243, the closing block 243 being used to close the opening of the slot 242. The mounting rod is fixedly connected to the rotating rod and moves synchronously with the rotation of the rotating rod, providing a stable connection point for the protective element. The slot design on the mounting rod allows for precise matching with the connector on the protective element, enabling quick connection between the protective element and the second connecting assembly through insertion, facilitating the installation and replacement of the protective element. Furthermore, since the slot has at least one open end, the connector can be smoothly inserted into the slot from the opening when installing the protective element, simplifying the assembly process. The sealing block on the rotating rod can seal the opening of the slot after the connector is installed in place, preventing the connector from falling out of the slot due to vibration, collision or other factors during the module unfolding, folding or operation, and ensuring that the protective element and the second connecting component always maintain a stable connection.

[0058] Furthermore, the mounting rod 241 and the rotating rod 220 are connected to each other by bolts 280.

[0059] See Figure 6The first connecting assembly 250 includes connectors 251 whose two ends are connected to two left and right fixed rods 210. The protective element 30 is fixedly connected to the connectors 251. The connectors, with their ends connected to the left and right fixed rods respectively, not only connect the two fixed rods into a single unit, enhancing the overall structural stability of the folding module and preventing the fixed rods from swaying or shifting due to uneven force during operation, but also provide a reliable connection foundation for the protective element. Because the protective element is fixedly connected to the connectors, when the folding module unfolds or folds, the connectors provide a stable anchor point for one end of the protective element, ensuring that the protective element always extends or folds with the connectors as a reference when following the movement of the second connecting assembly, thus guaranteeing the consistency of the protective element's movement trajectory.

[0060] See Figure 6 The connector 251 is fitted with a flexible sleeve 252. The flexible sleeve 252 has a through-slot on the side facing the second connecting assembly 240, and the protective element 30 passes through this through-slot. The flexible sleeve is made of a flexible material with cushioning properties. Its core function is to absorb the impact force through its elastic deformation when a worker accidentally bumps into the connector while working inside the carriage, preventing the worker from directly contacting the rigid connector and causing collision damage, thus significantly improving the safety of the working environment. Simultaneously, the through-slot on the side facing the second connecting assembly provides a passage for the protective element. Since the flexible sleeve is fitted onto the connector, a complete annular sleeve would prevent the protective element from passing through and connecting to the internal connector. The through-slot allows the protective element to pass smoothly and connect to the internal connector, ensuring the feasibility of connecting the protective element to the connector. Furthermore, the through groove can also provide flexible restraint for the protective element. When the protective element unfolds or folds, it reduces the direct friction between it and the rigid connecting parts, reduces the degree of wear, extends the service life, and prevents the protective element from shifting or falling off during movement, ensuring that it always unfolds or folds along the preset trajectory.

[0061] See Figure 5 The left and right fixed rods 210 are connected to a shaft 230, and the rotating rod 220 is rotatably connected to the shaft 230. The shaft connects the left and right fixed rods into a whole, enhancing the integrity and stability of the fixed rod structure. When the fixed rod is connected to the carriage, the shaft can distribute the force borne by each individual fixed rod, preventing deformation or loosening of the fixed rod due to uneven force distribution, and providing a stable foundation support for the entire folding module. At the same time, the rotating rod is rotatably connected to the shaft, which provides a precise rotation center and a stable rotation fulcrum for the rotation of the rotating rod. During the unfolding or folding of the rotating rod, the shaft can ensure the stability of the rotation trajectory of the rotating rod, reduce swaying or deviation, and ensure that the rotating rod can move smoothly according to the preset angle and path.

[0062] See Figure 5 The rotating rod 220 includes a first rod body 221 rotatably disposed relative to the fixed rod 210. The first rod body 221 is hollow inside and open at the top. A second rod body 222 is movably inserted into the first rod body 221. The two ends of the second connecting assembly 240 are fixedly connected to the second rod body 222. A plurality of first through holes 223 are arranged on the first rod body 221 along the direction in which the second rod body 222 moves relative to the first rod body 221. A plurality of second through holes 224 are arranged on the second rod body 222 along the direction in which the second rod body 222 moves relative to the first rod body 221. A limit element 225 is connected in any one of the first through holes 223 and any one of the second through holes 224. The hollow interior and open top design of the first rod body provides a spatial basis for the movable insertion of the second rod body, allowing the second rod body to move freely along the axial direction of the first rod body, thereby realizing the extension and retraction of the overall length of the rotating rod. Since both ends of the second connecting component are fixedly connected to the second rod, changes in the length of the rotating rod directly cause the second connecting component to rise and fall, thereby adjusting the unfolding height of the protective element. This allows it to adapt to different pipe stacking scenarios. When the pipes are stacked high in the vehicle, the length of the rotating rod can be extended to increase the height of the protective element, preventing the protective barrier from losing its protective effect due to insufficient height. When the pipes are stacked low or unloaded, the length of the rotating rod can be shortened to reduce the protective structure's occupation of the working space. Simultaneously, the multiple first through holes on the first rod and the multiple second through holes on the second rod, in conjunction with the limiting element, form a multi-position fixing structure. Operators can insert the limiting element into the corresponding first and second through holes according to actual needs, achieving relative fixation between the first and second rods. This ensures that the adjusted length of the rotating rod remains stable during operation, preventing the second rod from sliding relative to the first rod due to force on the protective element or vehicle vibrations. This ensures the protective element is always at an effective protective height, further improving the adaptability and reliability of the safety module.

[0063] Furthermore, the limiting element 225 adopts an existing locking pin or bolt. When using a bolt, the first through hole or the second through hole is set as a threaded hole, and the limiting element 225 is constrained within the first through hole and the second through hole by a threaded connection.

[0064] See Figure 2 and Figure 4 The fixing rod 210 is provided with a mounting block 211, and the carriage 10 is provided with a plug-in locking module 40; the mounting block 211 and the plug-in locking module 40 are detachably connected.

[0065] See Figure 2 and Figure 4The insertion locking module 40 includes an insertion sleeve 410, a mounting bracket 420, and a locking pin 430; the insertion sleeve 410 is fixedly installed in the carriage 10; the mounting block 211 can be inserted into the insertion sleeve 410 and is provided with a locking hole 213; the wall surface of the insertion sleeve 410 facing the mounting bracket 420 is provided with a pin hole 411, and the mounting bracket 420 is provided with a communicating hole 421; the locking hole 213 and the locking pin 430 are fixedly installed in the carriage 10. Hole 411 and connecting hole 421 are interconnected and coaxially arranged; the locking pin 430 extends through the connecting hole 421 in a direction away from the locking hole 213, and a limit handle 440 is provided at the end of the locking pin 430 away from the locking hole 213; the locking pin 430 is connected to the mounting bracket 420 by an elastic element 450, and the elastic element 450 is used to drive the locking pin 430 to be movably inserted into the locking hole 213.

[0066] The plug-in sleeve in the plug-in locking module is fixed on the carriage, providing a precise plug-in positioning structure for the installation plug. When the installation plug is inserted into the plug-in sleeve, the initial connection and positioning of the fixing rod and the carriage can be quickly achieved, ensuring that the installation position of the fixing rod on the carriage is accurate and avoiding the impact of installation deviation on the subsequent unfolding of the folding module and the protective effect of the protective elements.

[0067] The locking pin, elastic element, and related holes on the mounting bracket work together to achieve a secure lock between the mounting block and the insertion sleeve. Once the mounting block is in place, the locking hole on the mounting block, the pin hole on the insertion sleeve, and the connecting hole on the mounting bracket are interconnected and coaxial. At this point, the elastic element drives the locking pin through the connecting hole and the pin hole, and it is movably inserted into the locking hole, firmly locking the mounting block in the insertion sleeve. This prevents the mounting block from falling out of the insertion sleeve during loading / unloading operations or vehicle movement, ensuring the stability of the connection between the fixing rod and the vehicle body, and thus guaranteeing the normal operation of the entire safety module.

[0068] The setting of the limit handle provides convenience for the operation of the locking pin. When it is necessary to disassemble the fixing rod, the operator only needs to pull the limit handle to drive the locking pin to overcome the elastic force of the elastic element and move away from the locking hole, so that the locking pin is disengaged from the locking hole, and the installation block can be removed from the insertion sleeve, realizing the quick separation of the fixing rod from the carriage.

[0069] Furthermore, the fixing rod 210 can be installed in the carriage using existing detachable connection methods, such as by using several bolts for fixing.

[0070] See Figure 4The locking pin 430 has a first inclined surface 431 on its end face facing the mounting block 211; the lower surface of the mounting block 211 has a second inclined surface 212. When the mounting block is inserted into the socket sleeve, the second inclined surface on the lower surface of the mounting block will first contact the first inclined surface of the locking pin. As the mounting block continues to be inserted, the two inclined surfaces press against each other, and the second inclined surface will generate a lateral force on the first inclined surface, forcing the locking pin to overcome the elastic force of the elastic element and move away from the mounting block, making room for the insertion of the mounting block. This inclined surface mating structure eliminates the need for manual pre-pulling of the locking pin during the insertion process of the mounting block, realizing the synchronous execution of the insertion action and the locking pin avoidance action, simplifying the installation operation steps and improving installation efficiency.

[0071] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety module for loading and unloading cargo, characterized in that: Includes a folding module (20) connected to the carriage (10) and protective elements (30) that unfold or fold with the folding module (20); The folding module (20) includes two fixed rods (210) spaced apart on the left and right sides. The fixed rods (210) are detachably connected to the carriage (10). The fixed rods (210) are rotatably connected to a rotating rod (220). A first connecting assembly (250) is connected between the two fixed rods (210) on the left and right sides; A second connecting assembly (240) is connected between the two rotating rods (220) on the left and right sides; One end of the protective element (30) is connected to the first connecting assembly (250), and the other end is connected to the second connecting assembly (240); The fixed rod (210) is rotatably connected to the limiting link (260), the limiting link (260) is provided with a strip groove (261), and the rotating rod (220) is provided with a limiting member (270) that is movably inserted into the strip groove (261).

2. The safety module for loading and unloading cargo according to claim 1, characterized in that: The second connecting assembly (240) includes a mounting rod (241) fixedly connected to the rotating rod (220), the mounting rod (241) being provided with a slot (242) with at least one end open; The protective element (30) is fixedly connected to a connector (310), which is movably inserted into the slot (242); The rotating rod (220) is provided with a closing block (243), which is used to close the opening of the slot (242).

3. A safety module for loading and unloading cargo according to claim 2, characterized in that: The mounting rod (241) and the rotating rod (220) are connected to each other by bolts (280).

4. A safety module for loading and unloading cargo according to claim 2, characterized in that: The first connecting assembly (250) includes connectors (251) at both ends connected to two left and right fixed rods (210), and the protective element (30) is fixedly connected to the connectors (251).

5. A safety module for loading and unloading cargo according to claim 4, characterized in that: The connector (251) is fitted with a soft sleeve (252), and the soft sleeve (252) has a through groove on the side facing the second connecting assembly (240), and the protective element (30) passes through the through groove.

6. A safety module for loading and unloading cargo according to claim 1, characterized in that: The left and right fixed rods (210) are connected to the shaft (230), and the rotating rod (220) is rotatably connected to the shaft (230).

7. A safety module for loading and unloading cargo according to claim 1, characterized in that: The rotating rod (220) includes a first rod body (221) that is rotatably disposed relative to the fixed rod (210). The first rod body (221) is hollow inside and open at the top. A second rod body (222) is movably inserted into the first rod body (221). Both ends of the second connecting assembly (240) are fixedly connected to the second rod (222); A plurality of first through holes (223) are arranged on the first rod (221) along the direction in which the second rod (222) moves relative to the first rod (221); A plurality of second through holes (224) are arranged on the second rod (222) in the direction in which the second rod (222) moves relative to the first rod (221); A limit element (225) is connected in any one of the first through holes (223) and any one of the second through holes (224).

8. A safety module for loading and unloading cargo according to claim 1, characterized in that: The fixing rod (210) is provided with an installation plug (211), and the carriage (10) is provided with a plug-in locking module (40); the installation plug (211) and the plug-in locking module (40) are detachably connected.

9. A safety module for loading and unloading cargo according to claim 8, characterized in that: The plug-in locking module (40) includes a plug-in sleeve (410), a mounting bracket (420), and a locking pin (430); The insertion sleeve (410) is fixedly installed in the carriage (10); The mounting block (211) can be inserted into the insertion sleeve (410) and the mounting block (211) is provided with a locking hole (213); The insert sleeve (410) has a pin hole (411) on the wall facing the mounting bracket (420), and the mounting bracket (420) has a connecting hole (421); the locking hole (213), the pin hole (411) and the connecting hole (421) are interconnected and coaxially arranged. The locking pin (430) extends through the connecting hole (421) in a direction away from the locking hole (213), and a limit handle (440) is provided at the end of the locking pin (430) away from the locking hole (213); The locking pin (430) is connected to the mounting bracket (420) by an elastic element (450), which is used to drive the locking pin (430) to be movably inserted into the locking hole (213).

10. A safety module for loading and unloading cargo according to claim 9, characterized in that: The end face of the locking pin (430) facing the mounting block (211) is a first inclined surface (431); The lower surface of the mounting block (211) is a second inclined surface (212).

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