A hanging connecting rod

Abstract

The utility model discloses a kind of hanging connecting rods, including sling;Sling adopts fiber woven rope, and sling includes first eye and second eye;First eye and second eye are connected using fiber woven rope middle section between, and first eye and second eye are connected with fiber woven rope middle section by the way of insertion weaving;First eye end handheld sleeve pipe assembly is provided at the place close to first eye of fiber woven rope middle section, and second eye end handheld sleeve pipe assembly is provided at the place close to second eye of fiber woven rope middle section. Can be handheld hanging, lighter, higher strength, can realize small and medium-sized helicopter under the state of hovering fast hanging, fast delivery.

Description

Technical Field

[0001] This utility model belongs to the field of helicopter / drone cargo sling transport, and relates to a sling connecting rod. Background Technology

[0002] Helicopters / drones, equipped with rotors, have the advantage of hovering above mission sites regardless of terrain, making them widely applicable. When using helicopters / drones for external sling transport, hovering is the optimal solution to reduce terrain limitations, minimize dwell time at multiple mission sites, and improve transport efficiency and success rate.

[0003] When conducting helicopter / drone hovering transport, especially when working back and forth between two mission points or shuttling between multiple mission points, using a handheld rigid sling to quickly connect ground cargo to the cargo hook of the helicopter / drone can save a lot of preparation time and improve the economy of transport.

[0004] Currently, helicopters in China primarily use metal slings for ground-based cargo transport. However, the inherent flexibility of metal slings makes handheld slinging during helicopter hovering impossible, limiting the application scenarios for helicopter / drone hovering slinging. Therefore, there is a need for a lightweight, highly adaptable, rigid, handheld slinging connector with a strong connection between the upper collar and the handheld sleeve, and a length sufficient for hovering height requirements. This connector would allow for slinging connections during helicopter / drone hovering, expanding the application scenarios for external helicopter / drone slinging and improving economic efficiency. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a hanging connecting rod that can be handheld and hung into the cargo hook of a helicopter / drone. It is lightweight, high-strength, and can enable rapid hanging and deployment of helicopters / drones while they are hovering.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A suspension connecting rod, including slings; The sling is made of braided fiber rope and includes a first loop and a second loop. The first loop and the second loop are connected by the middle section of a fiber braided rope. The first loop and the second loop are connected to the middle section of the fiber braided rope by interlocking. A first loop end hand-held sleeve assembly is provided near the first loop in the middle section of the fiber braided rope, and a second loop end sleeve assembly is provided near the second loop in the middle section of the fiber braided rope. The first loop-eye handheld sleeve assembly includes a first loop-eye handheld sleeve. The middle section of the fiber braided rope and the inserted section of the first loop are connected to one end of the first loop-eye handheld sleeve by a binding rope. The binding rope is passed through the first loop-eye handheld sleeve, the inserted section of the fiber braided rope and the first loop in sequence, and the first loop-eye handheld sleeve, and then wrapped and tied around the first loop-eye handheld sleeve.

[0007] Optionally, a first eyelet metal collar is provided inside the first eyelet, and two inner rings are provided inside the first eyelet metal collar. The first inner ring of the first eyelet metal collar is used to connect with the cargo hook of the helicopter / drone, and the second inner ring is tied to the first eyelet by a binding rope.

[0008] Optionally, a first loop-eye closing sleeve is used to tension the first loop-eye hand sleeve, the second inner ring of the first loop-eye metal collar, and the binding rope into one unit.

[0009] Optionally, the gap between the first eyelet closing sleeve and the first eyelet metal collar and the first eyelet hand sleeve is filled with polyurethane hot melt adhesive. The second inner ring of the first eyelet metal collar, the first eyelet, the first eyelet hand sleeve and the binding rope are all filled with polyurethane hot melt adhesive and connected to the first eyelet closing sleeve as one unit.

[0010] Optionally, the first eye metal collar is made of stainless steel forging material, the first eye hand sleeve is made of polymer material, and the first eye closing sleeve is made of silicone rubber material.

[0011] Optionally, the binding rope is made of aramid fiber braided rope.

[0012] Optionally, the second eyelet end cap assembly includes a second eyelet end cap, and a cap clamp is provided at the lower end of the second eyelet end cap, which fixes the second eyelet end cap to the middle section of the fiber braided rope.

[0013] Optionally, the outer layer of the second eyelet is provided with a second eyelet rope leather layer, and the inner layer is provided with a heart-shaped ring.

[0014] Optionally, the fiber braided rope is wrapped with a rope skin, and the outer layer of the rope skin is provided with a polyurea resin impregnation layer, which permeates the fiber braided rope and the rope skin.

[0015] Optionally, the fiber braided rope is made by twisting multiple bundles of fibers together.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention, by incorporating a handheld sleeve, allows for direct hand-held slinging of the sling while the helicopter / drone is hovering. This overcomes the terrain limitations of external slinging and eliminates the need for the helicopter / drone to land, sling in, and then take off again, thus improving the efficiency and safety of helicopter / drone transportation and cargo resupply. The main load-bearing component of the sling is made of non-metallic fiber braided sling, which, compared to metal slings, has higher specific strength and specific modulus, significantly reduces weight, and offers better flexibility, enhancing ease of use and operability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the hanging connecting rod structure of this utility model; Figure 2 This is a cross-sectional view of the first eyelet and the handheld sleeve of this utility model; Figure 3 This is a cross-sectional view of the second annular eye of this utility model; Figure 4 This is a cross-sectional view of the fiber braided rope of this utility model.

[0018] Wherein: 1-First eyelet, 2-Second eyelet, 3-First eyelet metal collar, 4-First eyelet polyurethane coating, 5-Sling, 6-First eyelet end sleeve, 7-First eyelet hand sleeve, 8-Binding rope, 9-Hand sleeve sheath, 10-Sleeve clamp, 11-Fiber braided rope, 12-Fiber braided rope middle section, 13-Rope skin, 14-Polyurea resin impregnation layer, 15-Second eyelet end sleeve, 16-Second eyelet rope skin layer, 17-Lower section of eyelet, 18-First eyelet end hand sleeve assembly, 19-Second eyelet end hand sleeve assembly, 20-Heart ring. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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 this utility model. Furthermore, the terms "first" and "second" 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, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] 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 invention pertains. The terms “installation,” “connection,” and “linkage” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection; a mechanical connection, an electrical connection, or a connection that allows communication; a direct connection or an indirect connection via an intermediate medium; or a connection within two elements or an interaction between two elements. The term “and / or” as used herein includes any and all combinations of one or more of the associated listed items. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0024] like Figure 1 As shown, this utility model describes a hanging connecting rod, which includes a sling 5 and a handheld sleeve assembly.

[0025] The suspension connecting rod includes a sling 5, which is the main load-bearing component of the suspension connecting rod. The sling 5 has a first loop 1, a second loop 2, and a fiber braided rope section 12. The sling 5 forms the first loop 1, the second loop 2, and the fiber braided rope section 12 through a braiding process. The first loop 1 and the second loop 2 are made of twisted fibers. The twisting of the fibers involves at least multiple bundles of fibers twisted to form a rope-like structure, and at least multiple twisted fiber ropes are woven to form a fiber braided rope 11. The first loop 1 and the second loop 2 are connected to the fiber braided rope section 12 by interlocking braids, and the interlocked braids at the loop positions intersect at the lower section 17 of the loop. The sling 5 is the main load-bearing component, and the interlocking braiding connection achieves a stable connection, avoiding the problem of weak connection at the loop positions, and improving the connection strength and service life.

[0026] like Figure 4 As shown, the first eyelet 1, the second eyelet 2, and the middle section 12 of the fiber braided rope also include a braided fiber rope skin 13. The outer layer of the rope skin 13 is coated with an anti-corrosion polyurea resin coating, namely a polyurea resin impregnation layer 14. The resin completely impregnates the fiber braided rope 11 and the rope skin 13 to isolate the external environment, such as seawater corrosion, thereby further protecting and increasing the lifespan of the fiber rope.

[0027] For the first eyelet 1 and the second eyelet 2, in some possible implementations, the outer layers of the first eyelet 1 and the second eyelet 2 have metal collars and polyurethane coatings. Specifically, the first eyelet 1 further includes: a first eyelet metal collar 3, which is located in the inner layer of the fiber rope and conforms to the size of the eyelet. The first eyelet 1 also includes: a polyurethane impregnation layer, namely a first eyelet polyurethane coating 4, which is coated on the outer layer of the first eyelet metal collar 3, completely enclosing the first eyelet metal collar 3, and the outer layer of the first eyelet polyurethane coating 4 completely impregnates the entire first eyelet 1. The first eyelet metal collar 3 and the first eyelet polyurethane coating 4 are used to protect the cut resistance and abrasion resistance of the eyelet connection position. The second eyelet 2 has a second eyelet rope skin layer 16 on the outer layer, and a core ring 20 is provided inside to protect the abrasion resistance of the eyelet position.

[0028] The suspension connecting rod also includes a first eyelet end handheld sleeve assembly 18. For example... Figure 1 , Figure 2 As shown, the first eyelet end handheld sleeve assembly 18 is located at the first eyelet 1 end. The first eyelet end handheld sleeve assembly 18 includes a first eyelet handheld sleeve 7, which is a PPS non-metallic material with a certain degree of hardness. The first eyelet end handheld sleeve assembly 18 also includes a closing sleeve, namely the first eyelet closing sleeve 6, which is thermoplastic molded from silicone rubber material. It connects the first eyelet handheld sleeve 7 and the first eyelet 1, ensuring the hardness at the intersection of the first eyelet handheld sleeve 7 and the first eyelet 1. The first eyelet end handheld sleeve assembly 18 also includes a binding rope 8, which is made of aramid fiber braided rope and is located at the junction of the fiber braided rope 11, the first eyelet handheld sleeve 7, and the first eyelet closing sleeve 6. The binding rope 8 connects the three together, ensuring that the connection does not slip. In addition, the first eyelet handheld sleeve assembly 18 also includes a handheld sleeve sheath 9 and a sleeve ring clamp 10; the handheld sleeve sheath 9 and the sleeve ring clamp 10 are located at the lower end of the first eyelet handheld sleeve 7, clamping the first eyelet handheld sleeve 7 and the fiber braided rope 11 to ensure that slippage does not occur.

[0029] The suspension connecting rod also includes a second eyelet end handheld sleeve assembly 19. For example... Figure 1 , Figure 3As shown, the second loop-end handheld sleeve assembly 19 is located at the second loop 2 end. The second loop-end handheld sleeve assembly 19 includes a second loop-end closing sleeve 15, which is thermoformed from silicone rubber material and is shorter than the first loop-end handheld sleeve 7. A sleeve clamp 10 is used to fix the second loop-end closing sleeve 15 to the middle section 12 of the fiber braided rope. The second loop-end handheld sleeve assembly 19 also includes a handheld sleeve sheath 9 and a sleeve ring clamp 10; the handheld sleeve sheath 9 and the sleeve ring clamp 10 are located at the lower end of the second loop-end closing sleeve 15, clamping the second loop-end closing sleeve 15 and the fiber braided rope 11 to prevent slippage.

[0030] The middle section 12 of the fiber braided rope and the inserted section of the first loop eye 1 are connected to one end of the first loop eye hand sleeve 7 by a binding rope 8. The binding rope 8 is passed through the first loop eye hand sleeve 7, the inserted section of the middle section 12 of the fiber braided rope and the first loop eye 1, and the first loop eye hand sleeve 7 in sequence, and then wrapped and tied on the first loop eye hand sleeve 7.

[0031] The first eye metal collar 3 has two inner rings and a groove on its outer side. The first eye 1 is inserted into the outer groove of the first eye metal collar 3. The first inner ring of the first eye metal collar 3 is connected to the cargo hook of the helicopter / drone, and the second inner ring is tied to the first eye 1 by a binding rope 8. The first eye metal collar 3 is made of a forged metal material or a wear-resistant, high-hardness non-metallic material. The first eye metal collar 3 and the first eye 1 are available in different tonnage sizes according to the lifting load.

[0032] The connection points of the first eyelet 1, the first eyelet metal collar 3, and the first eyelet hand sleeve 7, except for the binding rope 8, are tensioned together by the first eyelet closing sleeve 6, which holds the first eyelet hand sleeve 7, the second inner ring of the first eyelet metal collar 3, and the binding rope 8 into a single unit. The first eyelet hand sleeve 7 is made of polymer material. The first eyelet hand sleeve 7 is approximately 2.5m long. The total weight of the hanging connecting rod does not exceed 10kg.

[0033] The gap between the first eyelet sleeve 6 and the first eyelet metal collar 3 and the first eyelet hand sleeve 7 is filled with polyurethane hot melt adhesive. The second inner ring of the first eyelet metal collar 3, the first eyelet 1, the first eyelet hand sleeve 7 and the binding rope 8 are all filled with polyurethane hot melt adhesive and connected to the first eyelet sleeve 6 as one unit.

[0034] At the connection point between the first annular eye closing sleeve 6 and the first annular eye hand sleeve 7, a sleeve clamp 10 is used to fasten the first annular eye closing sleeve 6 onto the first annular eye hand sleeve 7.

[0035] Near one end of the second eyelet 2, the second eyelet closing sleeve 15 is tensioned on the middle section 12 of the handheld fiber braided rope, and the second eyelet closing sleeve 15 is fastened to the second eyelet closing sleeve 15 by using the sleeve clamp 10.

[0036] A hand sleeve sheath 9 is provided on the middle section 12 of the fiber braided rope between the first eye hand sleeve 7 and the second eye closing sleeve 15. The hand sleeve sheath 9 is fastened to the middle section 12 of the fiber braided rope between the first eye hand sleeve 7 and the second eye closing sleeve 15 by a sleeve clamp 10, which clamps the hand sleeve 7 and the fiber braided rope 11, as well as the second eye closing sleeve 15 and the fiber braided rope 11, to ensure that slippage does not occur.

[0037] The sling connection rod described in this invention allows for direct hand-held slinging while the aircraft is hovering, improving the efficiency and safety of helicopter transportation. The sling connection rod has a hand-held sleeve for direct slinging, avoiding the need for slinging after landing during takeoff and increasing cargo resupply efficiency.

[0038] The main load-bearing components of the suspension connecting rod are made of non-metallic materials, which have higher specific strength and specific modulus, and the weight is reduced by about 60% compared with metal slings. At the same time, the non-metallic fiber braided rope 11 has better flexibility, improving the convenience and operability of use.

[0039] The eye size of this sling connection rod is adaptable to various aircraft models and can be used for hoisting various helicopter external sling systems. Different combinations of sling connection methods can accommodate different types of cargo transportation, expanding the range of helicopter cargo transport capabilities.

[0040] The fiber braided rope 11 of the cargo hook connection end (first eye 1) of the helicopter / drone is embedded in the outer groove of the first eye metal collar 3. Then, the rigid first eye metal collar 3, the first eye handheld sleeve 7, and the soft fiber braided rope are secured together by the binding rope 8, the tensioning handheld sleeve 9, and polyurethane hot melt adhesive, forming a strong rigid connection between the first eye handheld sleeve 7 and the first eye metal collar 3. This allows ground personnel to easily insert the lifting rod into the cargo hook. The first eye metal collar 3 in the first eye 1 is in direct contact with the cargo hook, significantly reducing wear on the fiber braided rope 11 during lifting and transportation, reducing frictional resistance during deployment, and improving connection strength, service life, and deployment efficiency.

[0041] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0042] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0043] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0044] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0045] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

[0046] It should be understood that the above description is for illustrative purposes and not for limitation. Many embodiments and applications beyond the provided examples will be apparent to those skilled in the art upon reading the above description. Therefore, the scope of this patent should not be determined by reference to the above description, but rather by reference to the foregoing claims and the full scope of their equivalents. For purposes of completeness, all articles and references, including patent applications and publications, are incorporated herein by reference. The omission of any aspect of the subject matter disclosed herein in the foregoing claims is not intended as a waiver of that subject matter, nor should it be construed as an indication that the applicant has not considered that subject matter as part of the disclosed utility model subject matter.

Claims

1. A suspension connecting rod, characterized in that, Including slings (5); The sling (5) is made of fiber braided rope (11), and the sling (5) includes a first loop (1) and a second loop (2); The first loop (1) and the second loop (2) are connected by a fiber braided rope middle section (12). The first loop (1) and the second loop (2) are connected to the fiber braided rope middle section (12) by interlocking. A first loop end hand-held sleeve assembly (18) is provided near the first loop (1) of the fiber braided rope middle section (12), and a second loop end closing sleeve assembly (19) is provided near the second loop (2). The first loop hand sleeve assembly (18) includes a first loop hand sleeve (7). The middle section (12) of the fiber braided rope and the inserted section of the first loop (1) are connected to one end of the first loop hand sleeve (7) by a binding rope (8). The binding rope (8) is passed through the first loop hand sleeve (7), the middle section (12) of the fiber braided rope and the inserted section of the first loop (1), and the first loop hand sleeve (7) in sequence, and then wrapped and tied on the first loop hand sleeve (7).

2. The hanging connecting rod according to claim 1, characterized in that, The first eyelet (1) is provided with a first eyelet metal collar (3), and the first eyelet metal collar (3) is provided with two inner rings. The first inner ring of the first eyelet metal collar (3) is used to connect with the cargo hook of the helicopter / drone, and the second inner ring is tied to the first eyelet (1) by a binding rope (8).

3. The hanging connecting rod according to claim 2, characterized in that, The first ring eye closing sleeve (6) is used to tension the first ring eye hand sleeve (7), the second inner ring of the first ring eye metal collar (3) and the binding rope (8) into one piece.

4. The hanging connecting rod according to claim 3, characterized in that, The gap between the first eyelet sleeve (6) and the first eyelet metal collar (3) and the first eyelet hand sleeve (7) is filled with polyurethane hot melt adhesive. The second inner ring of the first eyelet metal collar (3), the first eyelet (1), the first eyelet hand sleeve (7) and the binding rope (8) are all filled with polyurethane hot melt adhesive and connected to the first eyelet sleeve (6) as one unit.

5. The hanging connecting rod according to claim 3, characterized in that, The first ring eye metal collar (3) is made of stainless steel forging material, the first ring eye hand sleeve (7) is made of polymer material, and the first ring eye closing sleeve (6) is made of silicone rubber material.

6. The hanging connecting rod according to claim 1, characterized in that, The binding rope (8) is a braided rope made of aramid fiber.

7. The hanging connecting rod according to claim 1, characterized in that, The second eyelet end cap assembly (19) includes a second eyelet end cap (15), and a cap clamp (10) is provided at the lower end of the second eyelet end cap (15). The cap clamp (10) fixes the second eyelet end cap (15) to the middle section (12) of the fiber braided rope.

8. The hanging connecting rod according to claim 1, characterized in that, The outer layer of the second eyelet (2) is provided with a second eyelet rope leather layer (16), and the inner layer is provided with a chicken heart ring (20).

9. The hanging connecting rod according to claim 8, characterized in that, The fiber braided rope (11) is wrapped with a rope skin (13) on the outside. The outer layer of the rope skin (13) is provided with a polyurea resin impregnation layer (14). The polyurea resin impregnation layer (14) permeates the fiber braided rope (11) and the rope skin (13).

10. The suspension connecting rod according to claim 1, characterized in that, Fiber braided rope (11) is made of fiber rope formed by twisting multiple bundles of fibers.

Images