A combined adjustable sub-beam structure

Abstract

This invention provides a combined adjustable sub-beam structure, including a main sling, a main beam assembly, a sub-beam assembly, and a fuselage sling. The main sling is fixed above both ends of the main beam assembly, and the sub-beam assembly is suspended below both ends of the main beam assembly via auxiliary slings. The fuselage sling is suspended below the sub-beam assembly. This combined adjustable sub-beam structure has the following advantages: during aircraft emergency rescue, the longitudinal length of the required lifting equipment can be adjusted according to the aircraft type. The adjustment can be achieved by increasing or decreasing the number of sub-beams and adjusting the number and position of the sub-beam positioning holes, enabling the rescue of various aircraft types.

Description

Technical Field

[0001] This invention pertains to aircraft rescue hoisting equipment, and in particular relates to a combined adjustable sub-beam structure, which is a professional rescue hoisting equipment used in aircraft emergency rescue operations. Background Technology

[0002] With the advancement of technology, aircraft are playing an increasingly important role in available transportation. The unique skin structure of aircraft results in their large size, heavy weight, and weak surface strength. Combined with the differences between various aircraft models, this significantly increases the difficulty of rescue operations, making ordinary lifting and hoisting equipment insufficient. Specialized hoisting equipment must be able to accommodate various aircraft types, placing high demands on the adjustability of the equipment, especially its longitudinal length adjustability. Summary of the Invention

[0003] In view of this, the present invention aims to provide a combined adjustable sub-beam structure that can solve the above problems.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A combined adjustable sub-beam structure includes a main sling, a main beam assembly, a sub-beam assembly, and a body sling. The main sling is fixed above both ends of the main beam assembly, the sub-beam assembly is suspended below both ends of the main beam assembly by the sub-sling, and the body sling is suspended below the sub-beam assembly.

[0006] Furthermore, the sub-beam assembly includes a sub-beam and a shackle. The upper end of the sub-beam is connected to the sub-sling via the shackle, and the lower end of the sub-beam is suspended from the machine body sling.

[0007] Furthermore, each sub-beam is suspended by a body sling, with the two ends of the body sling suspended at the two ends of the sub-beam respectively.

[0008] Furthermore, the two sub-beams jointly suspend a set of body slings, with the two ends of the body slings suspended on the two sub-beams respectively.

[0009] Furthermore, each set of body slings includes several interconnected identical sling units, which are parallel to each other, with each sling unit suspended at both ends from two sub-beams.

[0010] Furthermore, the same number of secondary beams are suspended at both ends of the main beam assembly, and the machine body slings are correspondingly suspended between the secondary beams at both ends of the main beam assembly.

[0011] Furthermore, the two adjacent sub-beams on one side of the main beam assembly are detachably connected by longitudinal hangers.

[0012] Furthermore, the two ends of the longitudinal hanger are connected to the sub-beam by pins, and the shackle passes through the longitudinal hanger and the sub-beam. The upper part of the sub-beam is provided with a pin hole for passing through the pin and a shackle hole for passing through the shackle.

[0013] Furthermore, the lower part of the sub-beam is provided with several chain holes, through which chains pass, and the machine body slings are connected to the sub-beam by chains.

[0014] Furthermore, the shackle hole is located above the pin hole.

[0015] Furthermore, the chain is equipped with a self-adjusting chain length reducer, and both ends of the chain are connected to swivel buckles. One end of the chain is connected to the sub-beam through the swivel buckle, which passes through the chain hole. The other end of the chain is connected to the machine body sling through the swivel buckle.

[0016] Compared with the prior art, the combined adjustable sub-beam structure of the present invention has the following beneficial effects: during aircraft emergency rescue, the longitudinal length of the required hoisting equipment can be adjusted according to the change of aircraft type. The adjustment can be achieved by increasing or decreasing the number of sub-beams and adjusting the number and position of the sub-beam positioning holes, thus enabling the rescue of various aircraft types. Attached Figure Description

[0017] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 This is a schematic diagram of the structure of Example 1;

[0019] Figure 2 for Figure 1 An enlarged schematic diagram of part A in the middle;

[0020] Figure 3 for Figure 1 Schematic diagram of the connection relationship between the intermediate sub-girder assembly and the body hoisting straps;

[0021] Figure 4 for Figure 3 Schematic diagram of the connection relationship between the intermediate sub-beam and the longitudinal hangers;

[0022] Figure 5 for Figure 4 Enlarged schematic diagram of the intermediate sub-beam;

[0023] Figure 6 for Figure 4 Schematic diagram of the longitudinal suspension rod;

[0024] Figure 7 This is a structural schematic diagram of Example 2 (the body sling consists of 4 sling units);

[0025] Figure 8 for Figure 7 A schematic diagram showing the connection relationship between the body slings and the sub-beams;

[0026] Figure 9 This is a structural schematic diagram of Example 2 (the body sling consists of two sling units);

[0027] Figure 10 for Figure 9 A schematic diagram showing the connection relationship between the body slings and the sub-beams;

[0028] Figure 11 This is a schematic diagram of the structure of Example 3;

[0029] Figure 12 for Figure 11 Structural schematic diagram of the middle sub-girder assembly and the fuselage hoisting strap;

[0030] Figure 13 A schematic diagram of a novel adjustable chain structure;

[0031] Figure 14-15 for Figure 13 Application diagram;

[0032] Figure 16 This is the front view of the chain retractor;

[0033] Figure 17 This is a side view of the chain retractor;

[0034] Explanation of reference numerals in the attached figures:

[0035] 1-Main sling; 2-Main beam assembly; 3-Secondary sling; 4-Longitudinal sling; 5-Secondary beam; 6-Body sling; 61-Connecting belt; 62-Sling unit; 7-Shackle; 8-Pin; 9-Shackle hole; 10-Pin hole; 11-Chain hole; 12-Chain; 13-Chain retractor; 14-Horn safety shackle. Detailed Implementation

[0036] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0037] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0038] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0040] Example 1

[0041] like Figure 1-6 As shown, a combined adjustable sub-beam structure includes a main sling 1, a main beam assembly 2, a sub-beam assembly, and a body sling 6. The main sling 1 is fixed above both ends of the main beam assembly 2, the sub-beam assembly is suspended below both ends of the main beam assembly 2 by the sub-sling 3, and the body sling 6 is suspended below the sub-beam assembly.

[0042] The sub-beam assembly includes a sub-beam 5, a longitudinal suspension rod 4, and a shackle 7. The upper end of the sub-beam 5 is connected to the sub-sling 3 via the shackle 7, and the lower end of the sub-beam 5 is suspended from the machine body sling 6.

[0043] Two secondary beams 5 are suspended at each end of the main beam assembly 2. The two secondary beams 5 on one side of the main beam assembly 2 are detachably connected by longitudinal hangers 4. Two sets of machine body slings 6 are suspended on the four secondary beams 5 of the two longitudinal hangers 4.

[0044] Each set of body slings 6 includes several (which can be 2 or 4, etc.) identical sling units 62 that are interconnected. The sling units 62 can be vertically connected to each other using connecting straps 61, such as... Figure 10As shown, the sling units 62 are parallel to each other, and each sling unit 62 is suspended from the sub-beam 5 at both ends.

[0045] The two ends of the longitudinal hanger 4 are connected to the sub-beam 5 by pins 8. The shackle 7 passes through the longitudinal hanger 4 and the sub-beam 5. The upper part of the sub-beam 5 is provided with a pin hole 10 for passing through the pin 8 and a shackle hole 9 for passing through the shackle 7.

[0046] The lower part of the sub-beam 5 is provided with several chain holes 11, through which chains 12 pass. The sling unit 62 is connected to the sub-beam 5 via chains 12. The shackle hole 9 is located above the pin hole 10.

[0047] Example 2

[0048] like Figure 7-10 As shown, unlike Embodiment 1, each end of the main beam assembly 2 is suspended by a secondary beam 5 via shackles 7, without secondary lifting straps 3. The two secondary beams 5 are jointly suspended by a set of body lifting straps 6.

[0049] Example 3

[0050] like Figure 11-12 As shown, unlike Embodiment 1, the sub-beam assembly in Embodiment 1 includes a sub-beam 5 and a shackle 7, but does not include the longitudinal hanger 4. There are only two sub-beams, and the two sub-beams 5 are respectively suspended from both ends of the main beam assembly 2. Each sub-beam 5 has a body sling 6 (single sling unit) suspended from its lower end, and the two ends of each body sling 6 are respectively suspended from the two ends of a single sub-beam 5. The upper end of the sub-beam 5 is suspended from the lower end of the main beam assembly 2 via the shackle 7.

[0051] Example 4

[0052] like Figure 13-15 As shown, unlike embodiments 1-3, a novel adjustable chain structure is used to replace the chain 12 in embodiments 1-3. Specifically, a chain retractor 13 is fixed in the middle of the original chain 12, and horn-shaped safety shackles 14 are connected to both ends of the chain 12. One end of the chain 12 is connected to the sub-beam 5 through the horn-shaped safety shackle 14, which passes through the chain hole 11. The other end of the chain 12 is connected to the machine body sling 6 through the horn-shaped safety shackle 14.

[0053] The adjusting chain 12 is integrally machined from steel components, resulting in high strength. Both ends of the chain 12 are connected to swivel buckles 14, simplifying the structure and facilitating assembly. The chain 12 is equipped with a self-adjusting chain length reducer 13, which connects to the chain 12 without requiring other connecting parts and can be locked at any position, achieving self-adjustment without the need for an additional chain, thus saving space. Figure 16-17As shown, the ideal cross-shaped groove opening on the chain retractor 13 ensures proper installation and support of the chain links without any reduction in load-bearing capacity. The chain retractor 13 is a German-made VMVK multi-functional chain retractor purchased from Luther. Adjusting the chain mainly involves fine-tuning the distance between the machine body sling 6 and the longitudinal lifting rod 4 (or sub-beam 5) to ensure that the sling is in close contact with the machine body, thus completing the hoisting operation.

[0054] In summary, during aircraft emergency rescue, the longitudinal length of the required hoisting equipment can be adjusted according to the aircraft type. This adjustment can be achieved by increasing or decreasing the number of sub-beams and adjusting the number and position of the sub-beam positioning holes, thus enabling the rescue of various aircraft types.

[0055] Under normal circumstances, the longitudinal suspension rod 4 is not required. Adjusting the body sling 6 and the sub-beam chain hole 11 is sufficient for the current model. When a wider model is developed, the longitudinal suspension rod 4 can be added to meet the requirements. The longitudinal suspension rod 4 is connected to the sub-beam 5 via a pin 8 and to the auxiliary sling 3 via a shackle 7. The shackle 7 is also connected to the longitudinal suspension rod 4 via a pin.

[0056] The longitudinal hanger 4 is welded from square tubing and steel plates, resulting in a simple, stable structure that is easy to install. The sub-beam 5 is machined from steel plates, providing structural stability and facilitating movement and disassembly. The shackle 7 has no connecting threads, allowing the pin 8 to pass through easily.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A combined adjustable sub-beam structure, characterized in that: It includes a main sling (1), a main beam assembly (2), a secondary beam assembly and a body sling (6). The main sling (1) is fixed above both ends of the main beam assembly (2). The secondary beam assembly is suspended below both ends of the main beam assembly (2) by a secondary sling (3). The body sling (6) is suspended below the secondary beam assembly. The sub-beam assembly includes a sub-beam (5) and a shackle (7). The upper end of the sub-beam (5) is connected to the sub-sling (3) through the shackle (7), and the lower end of the sub-beam (5) is suspended by the body sling (6). Two sub-beams (5) together suspend a set of body slings (6), with the two ends of the body slings (6) suspended on the two sub-beams (5) respectively; Each set of body slings (6) includes several identical sling units (62) that are interconnected. The sling units (62) are parallel to each other, and the two ends of each sling unit (62) are respectively suspended on two sub-beams (5). The sub-beams (5) are provided with several chain holes (11) at the bottom. The chain (12) passes through the chain holes (11), and the body slings (6) and the sub-beams (5) are connected by the chain (12). The chain (12) is provided with a self-adjusting chain length reducer (13). The two ends of the chain (12) are respectively connected to horn safety buckles (14). One end of the chain (12) is connected to the sub-beams (5) through the horn safety buckle (14). The horn safety buckle (14) passes through the chain hole (11), and the other end of the chain (12) is connected to the body slings (6) through the horn safety buckle (14). The chain retractor (13) has an opening shape with a cross groove.

2. The combined adjustable secondary beam structure according to claim 1, characterized in that: Each sub-beam (5) is suspended by a body sling (6), with the two ends of the body sling (6) suspended at the two ends of the sub-beam (5).

3. The combined adjustable secondary beam structure according to claim 1, characterized in that: The same number of secondary beams are suspended at both ends of the main beam assembly (2), and the machine body slings are suspended between the secondary beams at both ends of the main beam assembly (2).

4. The combined adjustable secondary beam structure according to claim 3, characterized in that: The two adjacent sub-beams (5) on one side of the main beam assembly (2) are detachably connected by longitudinal hangers (4).

5. The combined adjustable secondary beam structure according to claim 4, characterized in that: The two ends of the longitudinal rod (4) are connected to the sub-beam (5) by pins (8). The shackle (7) passes through the longitudinal rod (4) and the sub-beam (5). The upper part of the sub-beam (5) is provided with a pin hole (10) for passing through the pin (8) and a shackle hole (9) for passing through the shackle (7).

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