A tethered hoist system and method for combined palletized container transport

Abstract

The present application relates to mechanical device and transportation technical field, disclose a kind of combination pallet container transport's tethered hoisting system and method, system includes tethered net, tethered belt, hoisting belt assembly, lifting ring, net belt connecting assembly, the tethered belt and tethered net are respectively used to bundle tethered and strengthen tethered to combination pallet and material storage and transport case;The net belt connecting assembly is used to connect when at least two the tethered net splicing need play the role of connection;The hoisting belt assembly includes fixed hoisting belt, adjustable hoisting belt, adjustment tensioner and branch hoisting belt, one end of the fixed hoisting belt and the branch end of branch hoisting belt are connected at the outer edge of combination pallet respectively, the two ends of the adjustment tensioner are connected with the convergence end of branch hoisting belt and one end of adjustable hoisting belt respectively, and the other end of fixed hoisting belt and adjustable hoisting belt is connected with lifting ring respectively.The present application realizes the aviation container transport function of super-size, super-heavy equipment material, tethered reasonable, hoisting operation stable and reliable.

Description

Technical Field

[0001] This invention relates to the field of mechanical devices and transportation technology, and more specifically, to a mooring and hoisting system and method for transporting combined palletized containers. Background Technology

[0002] With the development of air transport and the advancement of large transport aircraft research and development, the concept of air container transport was first proposed by Western countries in the last century, and has been realized and popularized through equipment such as containers, air container pallets, and container platforms. The US military proposed the 463L air container transport system, which rapidly promoted air military container transport worldwide and also promoted a unified common interface for air container transport. The Chinese military's container transport has also referenced and learned from this, and based on the current development status and technical roadmap of the Chinese military's transport aircraft, it has designed air transport container equipment interfaces and parameters suitable for the Chinese military. Air container pallets are the most important means and method of realizing air container transport. Although with the rapid development and deployment of my country's Y-20 large transport aircraft, air container transport and pallets have also been rapidly promoted, due to the previous limitations of transport aircraft size, container transport still suffers from problems such as late development, insufficient research, insufficient innovation, and limited functionality.

[0003] Currently, air transport pallets are used individually, equipped with a single set of tethering nets and attachments, and are transported via roll-on / roll-off, forklift, and hoisting methods. However, with the development of large transport aircraft and the expansion of cargo hold dimensions, the demand for the containerized transport of large materials is particularly urgent. Large and overweight goods such as various types of missiles, radar equipment, containerized containers, aerospace satellite containers, and special vehicles can be rigidly connected using air transport pallet connecting devices, enabling the containerized transport of large materials. However, this requires the use of dedicated air force airfield loading and unloading platforms for roll-on / roll-off transport, which is not widely available. Therefore, hoisting has become an important transshipment method for connecting air transport pallets, thereby facilitating the containerized transport of large materials.

[0004] Currently, although the aviation container pallet connecting device enables the loading and transportation of two or more pallets and large goods, there are still problems such as unsuitable tethering and hoisting methods and low reliability. For example, the existing method relies on tether hooks at the end of the tether net for splicing, which results in loose tether nets with low strength, redundant overlapping parts, and an unsightly appearance.

[0005] Furthermore, after the mooring net is secured, the cargo is ready for hoisting. Depending on the actual working conditions, hoisting is divided into ground-based hoisting and crane hoisting within the transport aircraft cabin. Ground-based hoisting is performed on the ground using a crane to transfer the palletized cargo to flatbed trucks, loading / unloading platforms, semi-trailers, airport tail sections, or designated locations. Traditional hoisting uses four anchor points and a combination of "lifting rings + lifting slings." The lifting rings are steel closed-end rings, and the slings are 5-ton standard nylon slings. The slings are connected to the mooring rings at the four corners of the air transport container pallet via D-type shackles or sling hooks, thus enabling the hoisting and transfer of the entire pallet and cargo. However, due to variations in sling length, eccentric cargo loading, excessively large and heavy combined pallets, and stress concentration issues after connection, existing hoisting methods cannot fully meet the requirements. Summary of the Invention

[0006] The purpose of this invention is to address the technical problems existing in the prior art by providing a tethering and hoisting system and method for containerized transportation of combined pallets. This solves the problem of tethering and hoisting methods for containerized transportation of large materials and equipment under combined pallets, and realizes the function of air containerized transportation of ultra-large and ultra-heavy equipment and materials.

[0007] To address the problems mentioned above, the technical solution adopted by this invention is as follows:

[0008] This invention provides a tethering and hoisting system for transporting modular pallets, used for tethering and hoisting modular pallets and storage boxes placed on them. The system includes a tethering net, tethering straps, hoisting strap assemblies, lifting rings, and a mesh belt connecting assembly. The tethering straps are used to secure the modular pallets and storage boxes; the tethering net is used to reinforce the secured modular pallets and storage boxes; and the mesh belt connecting assembly serves to connect at least two tethering nets when they need to be joined together.

[0009] The lifting sling assembly includes a fixed lifting sling, an adjustable lifting sling, an adjusting tensioner, and branch lifting slings. One end of the fixed lifting sling and the branch end of the branch lifting sling are respectively connected to the outer edge of the combined pallet. The two ends of the adjusting tensioner are respectively connected to the confluence end of the branch lifting sling and one end of the adjustable lifting sling. The other ends of the fixed lifting sling and the adjustable lifting sling are respectively connected to lifting rings.

[0010] Furthermore, the mesh belt connecting assembly includes a lock housing, a first locking block, a pin, a torsion spring, and a second locking block. The lock housing includes an upper locking part and a lower locking part that are centrally symmetrical, and mesh belt inlets are respectively provided on the sides of the upper locking part and the lower locking part. The first locking block and the second locking block are respectively disposed in the inner cavities of the upper locking part and the lower locking part through pins and in opposite directions, and a torsion spring is provided on the pin.

[0011] Furthermore, both the first locking block and the second locking block include a main body and a pressure band. The circumferential surface of the main body extends radially outward to form the pressure band. The pin passes through the main body in an eccentric manner. The torsion spring is provided on the side of the main body and at the end of the pin.

[0012] Furthermore, the pressing sections of the first locking block and the second locking block are arranged facing each other, and the surface of the main body that mates with the mesh belt is also provided with pointed protrusions.

[0013] Furthermore, the tensioner includes an adjustment handle, an adjustment screw, a pin, a locking nut, and a connecting seat. The adjustment screw is movably mounted at both ends of the adjustment handle, and a connecting seat is mounted at the end of the adjustment screw. A pin is mounted on the connecting seat. Locking nuts are also mounted at both ends of the adjustment handle for locking the adjustment screw.

[0014] The present invention also provides a method for tethering and hoisting combined palletized container transport, the specific steps of which include the following:

[0015] Container pallets are connected into combined pallets using a connecting device, and material storage and transportation boxes are placed on the combined pallets;

[0016] The material storage and transportation boxes and combination pallets are secured with tethering straps of different lengths;

[0017] After the material storage and transportation box is tied tightly, a tethering net is placed on the surface to reinforce the tethering. For extra-large sizes, two or more tethering nets are spliced ​​together by a mesh belt connecting component.

[0018] Lifting points A are set at both ends of the sides on both sides of the axis of the combined pallet, and lifting points B are set at the opposite ends of adjacent container pallets;

[0019] According to the actual working conditions, the lifting points A and B are connected to the lifting belt assembly for lifting operations.

[0020] Furthermore, the splicing of two or more tethered nets via a mesh belt connecting assembly specifically includes:

[0021] Two adjacent tethering nets with overlapping edges are pressed into the upper and lower locking parts of the lock case through their respective net inlets. The nets are then pulled taut in opposite directions, causing the first and second locking blocks to rotate eccentrically. The ends of the pressing parts of both blocks press the corresponding nets to lock them in place.

[0022] Furthermore, the lifting points A and B are connected to a lifting sling assembly for lifting operations, specifically including:

[0023] For ground hoisting at the site, the hoisting points A are connected to the fixed hoisting belts, and the two hoisting points B are connected to the branch ends of the branch hoisting belts. The branch hoisting belts are connected to the adjusting tensioners, and the adjusting tensioners are connected to the adjustable hoisting belts. After the fixed hoisting belts and the adjustable hoisting belts are connected to the lifting rings, the lifting rings are connected to the cranes for hoisting operations.

[0024] Furthermore, connecting lifting points A and B to the lifting sling assembly for lifting operations also includes:

[0025] For hoisting inside the transport aircraft cabin, hoisting points A and B are connected to fixed hoisting straps respectively. A lifting ring is set at the end of each of the two adjacent fixed hoisting straps located on the same side of the combined pallet axis. Each lifting ring is connected to a crane, and the crane is controlled to carry out the hoisting operation.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] (1) The tethered hoisting system of the present invention uses tethering straps to bind and tether the combined pallets and material storage and transportation boxes, and uses tethering nets to strengthen the tethering. When necessary, the tethering nets are spliced ​​together using the net belt connecting components, and then the hoisting belt components are used for reliable hoisting operations. Through reasonable tethering and reliable hoisting methods, the system realizes the hoisting of combined pallets and oversized and overweight materials, and solves the problem of loading and unloading of combined pallets and goods when there is no material loading and unloading platform vehicle. The overall structure is stable and the function is reliable.

[0028] (2) In this invention, the lifting method does not change the original lifting belt. The lifting belt assembly adds an adjustable lifting belt and sets an adjustment tensioner and branch lifting belt on the basis of the original lifting tool. This strengthens the lifting of weak links and avoids stress concentration damage to air transport container pallets. At the same time, the use of the adjustment tensioner can improve the problem of cargo imbalance caused by factors such as lifting belt length deviation and cargo center of gravity deviation, and ensure the reliability of lifting.

[0029] (3) In this invention, adjacent mooring nets are spliced ​​by setting up a mesh belt connecting component, which realizes the splicing and use of two or more mooring nets. This solves the problems of looseness, low strength, redundancy and unsightly overlapping parts after splicing the mooring nets. It realizes a quick and reliable splicing method and can achieve free splicing of any size to meet the needs of other goods of different sizes. The structure is simple and compact, the design is reasonable, the cost is low, the overlapping parts are not redundantly dragged, and the original mooring net structure design is not changed. At the same time, the locking block adopts the eccentric rotating shaft method to realize the self-locking of the mesh belt tension, and the strength meets the design requirements of the mesh belt tension.

[0030] (4) In this invention, the tensioner is connected by a threaded connection between the adjusting screw and the adjusting handle. By rotating the adjusting handle, the adjusting screws at both ends can be extended or retracted, thereby achieving the functions of length adjustment and tensioning. The overall structure is simple, safe and reliable, and can be operated by a single person.

[0031] (5) The tethering and hoisting method of the present invention binds and reinforces the combined pallet and material storage and transportation box by means of tethering straps and tethering nets, and splices the tethering nets by means of the mesh belt connecting components when needed, so as to achieve reasonable tethering of oversized materials; during hoisting, adjustable hoisting straps, adjustable tensioners and branch hoisting straps are added, and the length can be adjusted within a certain range to meet complex working conditions. At the same time, tension adjustment can be performed to prevent the problem of tensile stress concentration caused by the offset of the hoisting strap position from the center of gravity of the hoisted object. The method is simple, reliable and easy to implement. Attached Figure Description

[0032] To more clearly illustrate the solutions in this invention, a brief introduction to the accompanying drawings used in the description of the embodiments will be provided below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort. Wherein:

[0033] Figure 1 This is an example diagram of the combined tray in this invention.

[0034] Figure 2 This is an example diagram of the combined pallet and material storage and transportation box in this invention.

[0035] Figure 3 This is a schematic diagram of the tethered hoisting system for combined pallet container transportation according to the present invention.

[0036] Figure 4 In this invention Figure 3 The left view.

[0037] Figure 5 This is a schematic diagram showing the cooperation between the tethered net and the net belt connecting components in this invention.

[0038] Figure 6 This is a schematic diagram of the mesh belt connection component in this invention.

[0039] Figure 7 This is a schematic diagram of the locking shell in the mesh belt connecting assembly of the present invention.

[0040] Figure 8 In this invention Figure 7 The left view.

[0041] Figure 9 This is a schematic diagram of the locking block in this invention.

[0042] Figure 10 This is a schematic diagram of adjusting the tensioner in this invention.

[0043] Figure 11 This is a schematic diagram of adjusting the extension and retraction of the tensioner in this invention.

[0044] Figure 12 This is a schematic diagram of the mooring and hoisting method for combined palletized container transportation according to the present invention.

[0045] Figure 13 This is an example diagram of a tethered net connection in this invention.

[0046] Figure 14 This is another example diagram of the tethered net connection in this invention.

[0047] Figure 15 This is a schematic diagram of the combined pallet lifting points in this invention.

[0048] Figure 16 This is an example diagram of hoisting inside the transport aircraft cabin in this invention.

[0049] Figure 17 In this invention Figure 16 The left view.

[0050] Among them, 100-combination pallet, 200-material storage and transportation box, 300-connecting device, 10-tethering net, 20-tethering strap, 30-lifting sling assembly, 40-lifting ring, 50-mesh belt connecting assembly, 31-fixed lifting sling, 32-adjustable lifting sling, 33-adjusting tensioner, 34-branch lifting sling, 331-adjusting handle, 332-adjusting screw, 333-pin, 334-locking nut, 335-connecting seat, 51-lock housing, 52-first locking block, 53-pin, 54-torsion spring, 55-second locking block, 511-upper locking part, 512-lower locking part, 513-mesh belt inlet, 521-main body, 522-pressure belt part, 523-pointed protrusion. Detailed Implementation

[0051] 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. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. For example, terms such as “length,” “width,” “upper,” “lower,” “left,” “right,” “front,” “rear,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer” indicate orientations or positions based on the orientations or positions shown in the accompanying drawings and are for ease of description only, and should not be construed as limiting the technical solution.

[0052] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion; the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order. In the specification, claims, and accompanying drawings of this invention, when an element is referred to as "fixed to," "mounted to," "disposed of," or "connected to" another element, it may be directly or indirectly located on that other element. For example, when an element is referred to as "connected to" another element, it may be directly or indirectly connected to that other element.

[0053] Furthermore, the reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0054] See Figure 1 As shown and Figure 2 As shown, the present invention provides a tethering and hoisting system for transporting combined pallets, used to tether and hoist combined pallets 100 and material storage boxes 200 placed on combined pallets 100, wherein adjacent pallets are connected to form combined pallets 100 by connecting devices 300.

[0055] See Figure 3 , Figure 4 and Figure 5 As shown, the tethered hoisting system includes a tether net 10, tether straps 20, hoisting strap assembly 30, lifting rings 40, and a mesh belt connecting assembly 50. The tether straps 20 are used to secure the combined pallet 100 and the material storage box 200. The tether net 10 is used to reinforce the secured combined pallet 100 and the material storage box 200. The mesh belt connecting assembly 50 serves to connect the two tether nets 10 when they need to be joined together.

[0056] The lifting sling assembly 30 includes a fixed lifting sling 31, an adjustable lifting sling 32, an adjusting tensioner 33, and branch lifting slings 34. One end of the fixed lifting sling 31 is connected to the outer edge of the combined pallet 100, and the other end is connected to a lifting ring 40. One end of the adjustable lifting sling 32 is connected to one end of the adjusting tensioner 33, and the other end is also connected to a lifting ring 40. The other end of the adjusting tensioner 33 is connected to the confluence end of the branch lifting slings 34, and the branch ends of the branch lifting slings 34 are respectively connected to the outer edge of the combined pallet 100.

[0057] Specifically, the fixed lifting sling 31 and the adjustable lifting sling 32 can be 5-ton lifting slings as needed. The branch lifting sling 34 is a Y-shaped branch lifting sling, with the two branch ends connected to the opposite ends of adjacent container pallets and located in the middle of the combined pallet 100, which can ensure the stability of the lifting.

[0058] For further details, please refer to [link / reference]. Figures 6 to 8 The mesh belt connecting assembly 50 includes a lock housing 51, a first locking block 52, a pin 53, a torsion spring 54, and a second locking block 55. The lock housing 51 includes an upper locking part 511 and a lower locking part 512 that are centrally symmetrical. The sides of the upper locking part 511 and the lower locking part 512 are respectively provided with mesh belt inlets 513.

[0059] The first locking block 52 and the second locking block 55 are respectively movably disposed in the inner cavities of the upper locking part 511 and the lower locking part 512 via pins 53. The first locking block 52 and the second locking block 55 are installed in opposite directions. A torsion spring 54 is provided on the pin 53.

[0060] Specifically, the upper locking part 511 and the lower locking part 512 adopt a C-shaped structure, that is, the side of the upper locking part 511 and the lower locking part 512 are respectively provided with a mesh belt inlet 513, which facilitates the mesh belt of the tethering net 10 to be pressed into the corresponding inner cavity of the upper locking part 511 and the lower locking part 512.

[0061] For further details, please refer to [link / reference]. Figure 9 As shown, both the first locking block 52 and the second locking block 55 include a main body 521 and a pressure band 522. The circumferential surface of the main body 521 extends radially outward to form the pressure band 522. The pin 53 passes through the main body 521 and serves as an eccentric rotating shaft. A mounting groove is provided on the side of the main body 521 and at the end of the pin 53, and the torsion spring 54 is located within the mounting groove. The surface of the main body 521 that mates with the mesh belt of the tethering net 10 is also provided with pointed protrusions 523, which increases the reliability of the connection.

[0062] Specifically, both the first locking block 52 and the second locking block 55 are made of 30CrMnSiA material and are precision cast. Both the first locking block 52 and the second locking block 55 adopt an eccentric rotating shaft method, that is, after the tethering strap 20 is pressed into the upper locking part 511 and the lower locking part 512 through the tethering inlet 513, pulling the tethering strap 20 drives the corresponding main body part 521 to rotate, and the pressing part 522 presses the tethering strap 20, thus realizing the self-locking function of the strap. At the same time, the pointed protrusion 523 ensures the reliability of the operation of the two locking blocks.

[0063] Specifically, for ease of installation and operation, the pressure band portions 522 of the first locking block 52 and the second locking block 55 are arranged facing each other, that is, the ends of the pressure band portions 522 of both are facing the center of the lock housing 51.

[0064] For further details, please refer to [link / reference]. Figure 10 and Figure 11 As shown, the tensioner 33 includes an adjustment handle 331, an adjustment screw 332, a pin 333, a locking nut 334, and a connecting seat 335. The adjustment screw 332 is movably mounted at both ends of the adjustment handle 331, and the connecting seat 335 is mounted at the end of the adjustment screw 332. The connecting seat 335 has a pin 333 that mates with the lifting sling. Locking nuts 334 are also provided at both ends of the adjustment handle 331 for locking the adjustment screw 332.

[0065] Specifically, the tensioner 33 is threadedly connected to the adjusting screws 332 at both ends via the adjusting handle 331. Rotating the adjusting handle 331 causes the adjusting screws 332 to extend and retract, allowing the tensioner 33 to be adjusted and tensioned within a stroke range of 0-300mm. The tensioner 33 is connected to the tie rings at corresponding positions on the combined pallet 100 via the branch lifting strap 34, thus achieving tension adjustment. All tensioners 33 are made of 0Cr17Ni4CuNb stainless steel, and undergo heat treatment after processing, resulting in high strength, good hardness, and strong corrosion resistance, meeting lifting requirements.

[0066] See Figure 12 As shown, the present invention also provides a method for tethering and hoisting combined palletized container transport, the specific steps of which include the following:

[0067] Step S1: Connect the container pallets into a combined pallet 100 using the connecting device 300, and place the material storage and transportation box 200 on the combined pallet 100;

[0068] In this embodiment, a combined pallet 100, which connects two container pallets into one unit, can load four missile storage and transportation boxes. The container pallets are oversized in the direction of connection. The four missile storage and transportation boxes are placed in the center and stacked in two layers, with a weight within the rated range of 9 tons.

[0069] Step S2: Secure the material storage box 200 and the combination pallet 100 with tie straps 20 of different lengths;

[0070] In this embodiment, after loading, the goods in the material storage box 200 are securely bound to the combined pallet 100 by eight 8-meter tethering straps and four 12-meter tethering straps. The tethering point is a non-hoisting tethering ring, which reliably binds the goods in the material storage box 200 to the combined pallet 100 to form a whole.

[0071] Step S3: Cover the surface of the secured material storage and transportation box 200 with a tethering net 10 for reinforcement. For oversized boxes, two or more tethering nets 10 are spliced ​​together by the mesh belt connecting component 50.

[0072] In step S3, the overlapping mesh belts of two adjacent tethering nets 10 are pressed into the upper locking part 511 and lower locking part 512 of the lock housing 51 through the corresponding mesh belt inlet 513, respectively. The mesh belts in the upper locking part and lower locking part are pulled in opposite directions, causing the first locking block 52 and the second locking block 55 to rotate eccentrically. The ends of the pressing part 522 of the two blocks press the corresponding mesh belts to achieve locking.

[0073] In this embodiment, different tethering net splicing methods can be selected according to the size and stacking status of the transported goods and equipment. When the length of the goods is less than the connection length of the combined pallet 100, i.e., not oversized, the tethering net's horizontal and vertical mesh belts can be spliced ​​simultaneously. The splicing effect is as follows: Figure 13 As shown. When the length of the ammunition box is greater than the connection length of the combined pallet 100, the following can be used: Figure 14 Way.

[0074] Step S4: After completing the reinforcement of the tethering net 10, set lifting points A at both ends of the sides on both sides of the axis of the combined pallet 100, and set lifting points B at the opposite ends of adjacent container pallets, as follows. Figure 15 As shown;

[0075] Step S5: According to the actual working conditions, connect the lifting point A and lifting point B to the lifting belt assembly 30 to carry out the lifting operation.

[0076] This step S5 specifically includes:

[0077] 1) Perform ground hoisting at the site. Connect the hoisting points A to the fixed hoisting belts 31 respectively. Connect the two hoisting points B to the branch ends of the branch hoisting belts 34. Connect the branch hoisting belts 34 to the adjusting tensioners 33. Connect the adjusting tensioners 33 to the adjustable hoisting belts 32. After connecting the fixed hoisting belts 31 and the adjustable hoisting belts 32 to the lifting rings 40, connect the lifting rings 40 to the crane to achieve the overall hoisting of the material storage and transportation box 200 and the combined pallet 100.

[0078] In this embodiment, after two or more container pallets are sequentially connected into a combined pallet 100 by the connecting device 300 to form a rigid connection, there is a certain amount of slight "shaking" due to the installation gap between the connecting device 300 and the frame of the combined pallet 100. In addition, since the frame of the combined pallet 100 is made of aluminum alloy, while the connecting device 300 is made of stainless steel, its hardness and strength are higher than those of the frame material of the combined pallet 100. Therefore, in addition to the four lifting points A of a single container pallet, a lifting point B is added and a branch lifting strap 34, an adjusting tensioner 33 and an adjustable lifting strap 32 are set to achieve lifting tension at weak points, minimize stress concentration, and achieve safe and reliable lifting.

[0079] 2) For hoisting inside the transport cabin, connect hoisting points A and B to fixed hoisting straps 31. At the ends of two adjacent fixed hoisting straps 31 on the same side of the axis of the combined pallet 100, respectively, set a lifting ring 40. Each lifting ring 40 is connected to a crane, and the cranes are controlled to perform the hoisting operation. Figure 16 and Figure 17 As shown.

[0080] In this embodiment, the lifting within the transport aircraft cabin is mainly achieved using cranes and rails within the transport aircraft. If the transport aircraft is used for lifting into the aircraft cargo hold, a method of "4 sets of lifting straps and 8 lifting points" is adopted. The 8 lifting points increase the stability of the combined pallet 100, and four cranes are used simultaneously to achieve lifting entry and ensure reliable operation. In addition, the four cranes can be controlled independently, which means that deviations such as center of gravity shift and inconsistent strap lengths can be adjusted by controlling the four cranes. Therefore, the cabin lifting is not equipped with an adjusting tensioner 33 for adjustment.

[0081] This invention is primarily used for the containerized air transport of large equipment and materials, supporting military transport aircraft. It is deployed at air logistics delivery bases, transport air force airfields, and air force airfields in key areas. After being combined and used with containerized pallets, it provides a safe, reliable, and cost-effective method for securing and hoisting. It can transport oversized, high-load large equipment and materials, enabling whole-piece transport and meeting the requirements of various operational methods such as hoisting and roll-on / roll-off. It is characterized by high efficiency, convenience, and good adaptability, enabling the containerized transport of large equipment and materials. In particular, the implementation of hoisting methods eliminates the reliance on 14-ton and 25-ton loading / unloading platform trucks for roll-on / roll-off transport, improving support efficiency. Simultaneously, this invention helps promote the containerized transport of large materials in both civilian and military markets, playing a significant role in advancing modern transportation support systems.

[0082] The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present invention shall be considered equivalent substitutions and shall be included within the protection scope of the present invention.

Claims

1. A tethering and hoisting system for transporting modular pallets, used for tethering and hoisting modular pallets and storage containers placed on the modular pallets, characterized in that: The system includes a tethering net, tethering straps, lifting sling assemblies, lifting rings, and a mesh belt connecting assembly. The tethering straps are used to secure and hold the combined pallets and storage boxes. The tethering net is used to reinforce the secured combined pallets and storage boxes. The mesh belt connecting assembly serves to connect at least two tethering nets when they need to be joined together. The mesh belt connecting assembly includes a lock housing, a first locking block, a pin, a torsion spring, and a second locking block. The lock housing includes a centrally symmetrical upper locking part and a lower locking part, with mesh belt inlets on the sides of the upper and lower locking parts respectively. The first locking... The first locking block and the second locking block are respectively disposed in the inner cavities of the upper locking part and the lower locking part via pins and moving in opposite directions. A torsion spring is provided on the pin. Both the first locking block and the second locking block include a main body and a pressure band part. The circumferential surface of the main body extends radially outward to form the pressure band part. The pin passes through the main body in an eccentric manner. The torsion spring is provided on the side of the main body and at the end of the pin. The pressure band parts of the first locking block and the second locking block are arranged facing each other. The surface of the main body that mates with the mesh belt is also provided with a pointed protrusion. The lifting sling assembly includes a fixed lifting sling, an adjustable lifting sling, an adjusting tensioner, and branch lifting slings. The branch lifting slings are Y-shaped. One end of the fixed lifting sling and the branch ends of the branch lifting slings are respectively connected to the outer edge of the combined pallet. One end of the fixed lifting sling is specifically connected to lifting points A at both ends of the sides of the combined pallet's axis. The two branch ends of the branch lifting slings are specifically connected to lifting points B at opposite ends of adjacent pallets. The adjusting tensioner is connected at both ends to the confluence of the branch lifting slings and one end of the adjustable lifting sling. The adjusting tensioner includes an adjusting handle, an adjusting screw, a pin, a locking nut, and a connecting seat. The adjusting handle has adjusting screws movably mounted at both ends, and a connecting seat with a pin at the end of the adjusting screw. The adjusting handle also has locking nuts at both ends for locking the adjusting screws. The other ends of the fixed and adjustable lifting slings are respectively connected to lifting rings.

2. A method for tethering and hoisting based on the tethering and hoisting system for combined palletized container transport as described in claim 1, characterized in that: The specific steps of this tethered hoisting method include the following: Container pallets are connected into combined pallets using a connecting device, and material storage and transportation boxes are placed on the combined pallets; The material storage and transportation boxes and combination pallets are secured with tethering straps of different lengths; The surface of the secured material storage and transportation box is covered with a tethering net for enhanced tethering. For extra-large sizes, at least two tethering nets are spliced ​​together using a mesh belt connecting component. Lifting points A are set at both ends of the sides on both sides of the axis of the combined pallet, and lifting points B are set at the opposite ends of adjacent container pallets; According to the actual working conditions, connect the lifting points A and B to the lifting belt assembly to carry out the lifting operation; Connecting lifting points A and B to the lifting sling assembly for lifting operations specifically includes: For ground hoisting at the site, the hoisting points A are connected to the fixed hoisting belts respectively, and the two hoisting points B are connected to the branch ends of the branch hoisting belts. The branch hoisting belts are connected to the adjusting tensioners, and the adjusting tensioners are connected to the adjustable hoisting belts. After the fixed hoisting belts and the adjustable hoisting belts are connected to the lifting rings, the lifting rings are connected to the cranes for hoisting operations. For hoisting inside the transport aircraft cabin, hoisting points A and B are connected to fixed hoisting straps respectively. A lifting ring is set at the end of each of the two adjacent fixed hoisting straps located on the same side of the combined pallet axis. Each lifting ring is connected to a crane, and the crane is controlled to carry out the hoisting operation.

3. The method for securing and hoisting combined palletized containers according to claim 2, characterized in that: At least two of the aforementioned tethered nets are spliced ​​together via a mesh belt connecting assembly, specifically including: Two adjacent tethering nets with overlapping edges are pressed into the upper and lower locking parts of the lock case through their respective net inlets. The nets are then pulled taut in opposite directions, causing the first and second locking blocks to rotate eccentrically. The ends of the pressing parts of both blocks press the corresponding nets to lock them in place.

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