Foldable detachable helicopter sling
By designing a foldable and easily detachable helicopter spreader, and using rotatable support rods and standardized connectors, the problems of large space occupation and inconvenient assembly and disassembly of traditional spreaders have been solved, realizing the flexibility and efficient use of the spreader.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ARMY AVIATION RES INST OF THE ARMY AVIATION ACAD OF THE CHINESE PEOPLES LIBERATION ARMY
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional helicopter slings have a fixed structure, which takes up a lot of space and is not easy to disassemble and assemble, making it difficult to meet the portability requirements for helicopter production, assembly, maintenance and repair.
A foldable and easily disassembled helicopter spreader was designed, which uses components such as rotatable support rods, tie rods, connecting plates and steel cables to achieve folding and stable support of the support rods, and simplifies the disassembly and assembly process through standardized connectors.
It improves the space utilization efficiency and ease of operation of the lifting structure, adapts to the lifting needs of helicopters of different sizes, and ensures safety and stability.
Smart Images

Figure CN224493420U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of helicopter sling technology, and in particular to a foldable and easily detachable helicopter sling. Background Technology
[0002] As large transportation equipment, helicopters use lifting equipment during production, assembly, and subsequent maintenance to lift the helicopter fuselage for easier assembly or repair.
[0003] Traditional helicopter slings mostly use fixed suspension structures and slings in actual use, which can stably lift the helicopter body and keep it in a suspended state, facilitating assembly and maintenance. Due to the large size of helicopters, the suspension slings required are also very large. Moreover, fixed suspension structures are inconvenient to disassemble and fold for storage, and occupy a lot of space when not in use. Therefore, this application proposes a foldable and easily disassembled helicopter sling. Utility Model Content
[0004] In view of the shortcomings of the existing technology, this utility model provides a foldable and easily detachable helicopter sling.
[0005] An embodiment of this utility model provides a foldable and easily detachable helicopter sling, comprising:
[0006] A horizontal plate, with two tie rods fixed to its upper end, and a connecting plate fixed to the upper end of each tie rod;
[0007] Foldable lifting device structure: The lifting device structure includes four support rods rotatably mounted on a horizontal plate. Multiple tension hooks are fixed to the upper end of the support rods, and multiple lifting hooks are fixed to the lower end of the support rods. Lifting hooks are equipped with lifting rings, and lifting rings are equipped with pull ropes. A fixing hook is fixed to the pull rod, and the fixing hook is connected to the tension hooks via a steel cable.
[0008] Furthermore, a mounting block is fixed to the bottom of the pull rod, and the mounting block is fixed to the connecting plate by bolts.
[0009] Furthermore, a bracket is fixedly connected to the horizontal plate, a rotating shaft is rotatably connected to the bracket, and the support rod is fixed on the rotating shaft.
[0010] Furthermore, both ends of the steel cable are fixedly connected to fixed hanging rings, which are hung on tension hooks and fixed hooks.
[0011] Furthermore, the upper end of the connecting plate is provided with four bolt holes, which are arranged in a rectangular pattern.
[0012] Furthermore, the tension hooks and lifting hooks are arranged in a linear array on the support rod.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] This invention achieves effective tensioning and stable support for the support rod through the ingenious design of components such as the pull rod, fixed hook, steel cable, and fixed hanging ring. At the same time, its simple and quick assembly and disassembly make the lifting device structure more practical and efficient. Attached Figure Description
[0015] Figure 1 This is a structural schematic diagram of a foldable and easily detachable helicopter sling as described in an embodiment of this utility model.
[0016] Figure 2 This is a schematic diagram of the support rod in a foldable and easily detachable helicopter sling as described in an embodiment of this utility model.
[0017] Figure 3 This is a schematic diagram of the steel cable in a foldable and easily detachable helicopter sling as described in an embodiment of this utility model.
[0018] In the above attached diagram: 1. Horizontal plate, 2. Tie rod, 3. Connecting plate, 4. Bracket, 5. Support rod, 6. Tensioning hook, 7. Lifting hook, 8. Lifting ring, 9. Pull rope, 10. Fixing ring, 11. Fixing hook, 12. Steel cable, 13. Rotating shaft. Detailed Implementation
[0019] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.
[0020] like Figures 1-3 As shown in the figure, this utility model embodiment proposes a foldable and easily detachable helicopter sling, comprising:
[0021] The horizontal plate 1, serving as the fundamental support component of the lifting device structure, is designed to be not only robust and durable but also highly flexible. Two tie rods 2 are fixed to the upper end of the horizontal plate 1. These tie rods are made of high-strength alloy material, capable of withstanding the enormous tensile forces generated when the lifting device lifts the helicopter. The bottom of the tie rods 2 is designed with mounting blocks, which are tightly connected to the connecting plate 3 via precision-machined bolt holes, thus ensuring the stability and reliability between the tie rods 2 and the connecting plate 3.
[0022] The connecting plate 3, serving as a bridge between the tie rod 2 and the lifting equipment, is also crucially designed. Four bolt holes are provided through the upper end of the connecting plate 3 in a rectangular arrangement, facilitating installation and disassembly while ensuring the stability of the connecting plate 3 on the lifting equipment. In actual operation, the operator simply aligns the bolt holes on the connecting plate 3 with the corresponding holes on the lifting equipment and then secures them with high-strength bolts to easily connect the lifting device to the hoisting equipment.
[0023] It is worth noting that, to ensure the safety of the lifting device structure during lifting, the connection between the connecting plate 3 and the lifting equipment requires rigorous inspection and testing. After installation, operators need to check the torque of all bolts to ensure that each bolt reaches the predetermined tightening torque. Furthermore, static and dynamic load tests are required on the lifting device structure to verify its stability and safety under different load conditions.
[0024] In addition to the installation methods described above, this lifting device structure is highly customizable. Depending on different usage needs and scenarios, operators can adjust the length and number of tie rods 2, as well as the shape and size of the connecting plates 3, to meet specific lifting requirements. This flexibility not only improves the applicability of the lifting device structure but also reduces usage costs and maintenance difficulty.
[0025] Lifting equipment (although not shown in the figure) typically includes electric hoists, hydraulic lifting platforms, or pneumatic lifting devices. Through a precise control system, they enable the smooth lifting of the lifting equipment and its load to meet the needs of different working heights.
[0026] Foldable Lifting Gear Structure: This foldable lifting gear structure is ingeniously designed to improve usability and space utilization efficiency. Specifically, the horizontal plate 1, as the basic support component of the entire lifting gear structure, is made of sturdy and durable material and can withstand large loads. The brackets 4 fixedly connected to the horizontal plate 1 are connected by welding or high-strength bolts to ensure the stability and safety of the structure.
[0027] The rotating shaft 13, rotatably connected to the bracket 4, is made of high-quality alloy steel, possessing excellent wear resistance and corrosion resistance, ensuring smooth rotation over a long period. The design of the rotating shaft 13 allows the four support rods 5 to rotate around it, thus achieving the folding function. The support rods 5 are also made of high-strength materials to ensure they will not deform or break when bearing heavy loads.
[0028] During the folding process, the support rod 5 can be rotated around the rotating shaft 13 to a position parallel to the horizontal plate 1 by manual or mechanical assistance, thereby greatly reducing the space occupied by the lifting structure when not in use. In addition, to further improve the convenience of storage, locking devices (such as latches, pins, etc.) can be set on the horizontal plate 1 or the bracket 4 to fix the support rod 5 after folding, preventing it from unfolding on its own due to accidental touch or vibration.
[0029] It is worth noting that this lifting device structure can also be customized according to actual needs, such as adjusting the number and length of the support rods 5 and the position of the rotating shaft 13, to meet the usage requirements in different scenarios. At the same time, to ensure the safety of operators, necessary safety warning signs and protective measures can be installed on the lifting device structure.
[0030] The innovative design of this lifting device is not only reflected in its foldability but also in its versatility and flexibility in lifting helicopters. Multiple tension hooks 6 are fixed to the upper end of the support rod 5. These hooks are made of high-strength alloy material and can withstand the enormous pulling force of the helicopter during lifting, ensuring safety. Meanwhile, multiple lifting hooks 7 are fixed to the lower end of the support rod 5. These hooks are equally robust and durable, used to connect the lifting rings 8.
[0031] The tension hook 6 and the lifting hook 7 are arranged in a linear array on the support rod 5. This design allows the lifting structure to adapt to helicopters of different sizes, providing greater flexibility and adaptability. In actual operation, the operator can select the appropriate lifting hook 7 to attach the lifting ring 8 according to the width of the helicopter and the tightening position, thereby ensuring the stability and safety of the helicopter during the lifting process.
[0032] The lifting ring 8, as a key component connecting the rope 9 and the helicopter, is equally crucial in its design. Made of high-quality steel, the ring boasts high strength and wear resistance, capable of withstanding the immense impact forces exerted by the helicopter during takeoff and landing. Furthermore, the ring's shape and dimensions are carefully designed to ensure a tight connection with the rope 9, preventing it from detaching or breaking during lifting.
[0033] As a key component connecting the helicopter and the lifting gear structure, the helical rope 9 also requires stringent material and strength specifications. Made of high-strength synthetic fiber, the helical rope 9 is lightweight, high-strength, wear-resistant, and corrosion-resistant. In actual operation, operators can attach the helical rope 9 to the helicopter's designated lifting points and then adjust its length and tension to achieve smooth takeoff and landing of the helicopter.
[0034] A fixed hook 11 is fixed to the pull rod 2, and the fixed hook 11 is connected to the tension hook 6 via a steel cable 12. The pull rod 2 of this lifting device structure is cleverly designed with the fixed hook 11 fixed on it. This design not only enhances the overall stability of the lifting device structure, but also facilitates subsequent tensioning operations. The fixed hook 11 is connected to the tension hook 6 via the steel cable 12. This connection method is not only flexible, but also able to withstand greater tensile force, ensuring the safety of the lifting device structure when lifting helicopters.
[0035] Both ends of the steel cable 12 are fixedly connected to fixed hanging rings 10, which are hung on tension hooks 6 and fixed hooks 11. In actual operation, the fixed hanging rings 10 can be hung on tension hooks 6 and fixed hooks 11. By adjusting the tension of the steel cable 12, the support rod 5 can be tightened. It is worth noting that the total length of the steel cable 12 and the fixed hanging rings 10 can be selected in multiple sizes. This is because the tension on the support rod 5 will be different when the lifting ring 8 is hung on different lifting hooks 7. By hanging the fixed hanging ring 10 on different tension hooks 6, the stress state of the support rod 5 can be better adjusted, ensuring the stability of the lifting device structure during use.
[0036] The steel cable 12 and the fixed hanging ring 10 have multiple lengths. Because the tension on the support rod 5 varies when the lifting hanging ring 8 is hung on different lifting hooks 7, the fixed hanging ring 10 can be hung on different tension hooks 6 to better tighten the support rod 5 and ensure stability during use. Since the tension between them is mainly connected through the fixed hanging ring 10 and the lifting hanging ring 8, disassembly and assembly are simple and quick.
[0037] As a key component connecting the fixed hook 11 and the tension hook 6, the steel cable 12 has undergone rigorous selection and testing in terms of material and strength. Made of high-strength alloy steel wire, the steel cable 12 possesses advantages such as lightweight, high strength, wear resistance, and corrosion resistance, maintaining stable performance even in harsh environments. Simultaneously, both ends of the steel cable 12 are fixedly connected to fixed hanging rings 10. These hanging rings are made of high-quality steel, possessing high strength and wear resistance, and capable of withstanding the enormous tensile forces during lifting.
[0038] Furthermore, the assembly and disassembly of this lifting device structure is extremely simple and quick. Because connecting components such as the fixing ring 10 and lifting ring 8 are all standardized in design, operators can assemble and disassemble the lifting device structure simply by hooking and unhooking. This design not only improves work efficiency but also reduces operational difficulty, making the lifting device structure easier to maintain and manage.
[0039] In summary, this foldable lifting device structure, through the ingenious design of components such as the pull rod 2, fixed hook 11, steel cable 12, and fixed hanging ring 10, achieves effective tensioning and stable support for the support rod 5. Furthermore, its simple and quick assembly and disassembly make the lifting device structure more practical and efficient.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A foldable and easily detachable helicopter sling, characterized in that, include: A horizontal plate (1) has two tie rods (2) fixed at its upper end, and a connecting plate (3) is fixed at the upper end of each tie rod (2). Foldable lifting device structure: The lifting device structure includes four support rods (5) rotatably mounted on a horizontal plate (1). Multiple tension hooks (6) are fixed at the upper end of the support rods (5), and multiple lifting hooks (7) are fixed at the lower end of the support rods (5). Lifting rings (8) are hung on the lifting hooks (7), and pull ropes (9) are fixed on the lifting rings (8). Fixed hooks (11) are fixed on the pull rods (2), and the fixed hooks (11) are connected to the tension hooks (6) by steel cables (12).
2. The foldable and easily detachable helicopter sling as described in claim 1, characterized in that, in: The bottom of the pull rod (2) is fixed with an installation block, which is fixed to the connecting plate (3) by bolts.
3. The foldable and easily detachable helicopter sling as described in claim 1, characterized in that, in: A bracket (4) is fixedly connected to the horizontal plate (1), and a rotating shaft (13) is rotatably connected to the bracket (4). The support rod (5) is fixed on the rotating shaft (13).
4. The foldable and easily detachable helicopter sling as described in claim 1, characterized in that, in: Both ends of the steel cable (12) are fixedly connected to a fixed hanging ring (10), which is hung on the tension hook (6) and the fixed hook (11).
5. A foldable and easily detachable helicopter sling as described in claim 1, characterized in that, in: The upper end of the connecting plate (3) is provided with four bolt holes, which are arranged in a rectangular pattern.
6. A foldable and easily detachable helicopter sling as described in claim 1, characterized in that, in: The tension hook (6) and lifting hook (7) are arranged in a linear array on the support rod (5).