Heavy equipment air drop tow structure

Abstract

The application relates to a heavy equipment air-drop traction structure and relates to the field of traction devices. The heavy equipment air-drop traction structure comprises a semi-rigid guide umbrella, a packaging container connected with the semi-rigid guide umbrella, a traction umbrella accommodated in the packaging container, a traction locking connecting piece for connecting the air-drop heavy equipment and an air-drop carrier, and a connecting rope with two ends connected with the traction umbrella and the traction locking connecting piece. The semi-rigid guide umbrella comprises a guide umbrella, an umbrella opening pulling rope wound outside the guide umbrella, a packaging round frame, and a plurality of spring assemblies for connecting the guide umbrella with the packaging round frame. The traction locking connecting piece is used for disconnecting the air-drop carrier when the connecting rope is pulled, and opening a main umbrella system connected with the air-drop heavy equipment when the air-drop heavy equipment is separated from the air-drop carrier. The heavy equipment air-drop traction structure has the advantages of good airflow interference resistance, high reliability and strong working stability, can effectively improve the reliability of system air-drop, and ensures the safety of the air-drop carrier and the system.

Description

Technical Field

[0001] This application relates to the field of traction devices, and more specifically, to a heavy equipment airdrop traction structure. Background Technology

[0002] For airdrops involving the towing of heavy equipment, the towing device must provide good stability and constant traction, as well as reliable steering control and safe activation of the main parachute system. In addition, depending on the characteristics of the airdrop carrier and the equipment, appropriate fixing and force-locking functions need to be set up.

[0003] With the development of large transport aircraft, equipment airdrop is constantly evolving towards greater weight and higher altitude, which challenges the reliability of heavy equipment airdrop traction devices. Existing heavy equipment airdrop traction devices still cannot meet the airdrop requirements of large tonnage, high speed, and high altitude in terms of airflow interference resistance, reliability, and operational stability. Summary of the Invention

[0004] The purpose of this application is to provide a heavy equipment airdrop traction structure, which has the advantages of good resistance to airflow interference, high reliability, and strong working stability, and can effectively improve the reliability of the airdrop system and ensure the safety of the airdrop carrier and the system.

[0005] This application is implemented as follows:

[0006] This application provides a heavy equipment airdrop towing structure, which includes a semi-rigid guide parachute, a packaging container connected to the semi-rigid guide parachute, a towing parachute housed in the packaging container, a towing locking connector for connecting the airdropped heavy equipment and the airdrop carrier, and connecting ropes at both ends connected to the towing parachute and the towing locking connector respectively. The semi-rigid guide parachute includes a guide parachute, an opening pull rope wrapped around the outside of the guide parachute, a packaging frame, and multiple spring assemblies for connecting the guide parachute to the packaging frame. The towing locking connector is used to release the connection with the airdrop carrier when the connecting rope is pulled, and to open the main parachute system connected to the airdropped heavy equipment when the airdropped heavy equipment is detached from the airdrop carrier.

[0007] In some alternative embodiments, each spring assembly includes two coaxially spaced connecting springs and two opposing first U-shaped springs and second U-shaped springs. The adjacent ends of the two connecting springs are connected to the two ends of the first U-shaped springs, and the opposite ends of the two connecting springs are connected to the two ends of the second U-shaped springs. The first U-shaped springs are connected to the middle of the guide umbrella passing through the packaging frame, and the second U-shaped springs are connected to the edge of the guide umbrella.

[0008] In some alternative implementations, the connecting spring is fitted onto the packaging round frame.

[0009] In some alternative implementations, the edge of the guide umbrella is connected with a plurality of spaced-apart connecting loops, and the packaging container is provided with fixing loops that correspond one-to-one with the connecting loops.

[0010] In some alternative implementations, a spring tensioning cord for connecting the various spring assemblies is also included.

[0011] In some alternative implementations, the packaging container is connected to multiple rope loops, with the connecting ropes passing through each rope loop in sequence before connecting to the towing parachute.

[0012] In some alternative implementations, the outer wall of the packaging container is also connected to tightening straps extending circumferentially thereon.

[0013] In some alternative implementations, the towing lock connector includes a towing lock seat for connecting to airdropped heavy equipment, a piston rod vertically connected to the towing lock seat, and a grappling hook hinged to the towing lock seat. The bottom of the grappling hook presses downward to limit the position of the piston rod, and the top of the grappling hook is hinged to a main parachute connecting plate and a towing connecting plate connected to the connecting rope. When the connecting rope is pulled, the grappling hook rotates through the towing connecting plate, causing the bottom of the grappling hook to stop rotating and press downward to limit the piston rod. When the tension on the grappling hook is greater than a preset tension, the grappling hook disengages from the towing lock seat.

[0014] In some alternative implementations, the connecting rope consists of two ropes connected at their ends, each rope being composed of multiple elastic connecting straps.

[0015] In some alternative implementations, the connecting rope is connected to a plurality of spaced-apart unlocking pins.

[0016] The beneficial effects of this application are as follows: The heavy equipment airdrop towing structure provided by this application includes a semi-rigid guide drogue, a packaging container connected to the semi-rigid guide drogue, a towing drogue housed within the packaging container, a towing locking connector for connecting the airdropped heavy equipment and the airdrop carrier, and connecting ropes at both ends connecting the towing drogue and the towing locking connector respectively. The semi-rigid guide drogue includes a guide drogue, an opening pull rope wrapped around the outside of the guide drogue, a packaging frame, and multiple spring assemblies for connecting the guide drogue to the packaging frame. The towing locking connector is used to release the connection with the airdrop carrier when the connecting rope is pulled, and to open the main parachute system connected to the airdropped heavy equipment when the airdropped heavy equipment detaches from the airdrop carrier. The heavy equipment airdrop towing structure provided by this application has the advantages of good resistance to airflow interference, high reliability, and strong operational stability, which can effectively improve the reliability of the system airdrop and ensure the safety of the airdrop carrier and the system. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the structure of the heavy equipment airdrop traction structure provided in the embodiments of this application when the airdropped heavy equipment is towed away from the airdrop carrier.

[0019] Figure 2 The cross-sectional structural diagram of the heavy equipment airdrop traction structure provided in the embodiments of this application shows the heavy equipment being airdropped in two states: when it is inside the airdrop carrier and when it is detached from the airdrop carrier.

[0020] Figure 3 This is a schematic diagram of the first usage state of the semi-rigid guide parachute, packaging container, towing parachute, and connecting rope in the heavy equipment airdrop towing structure provided in the embodiments of this application.

[0021] Figure 4 A schematic diagram of the second usage state of the semi-rigid guide parachute, packaging container, towing parachute, and connecting rope in the heavy equipment airdrop traction structure provided in the embodiments of this application;

[0022] Figure 5 for Figure 2 A partial structural diagram showing the connection and locking of the heavy equipment airdropped at point A to the airdrop carrier aircraft.

[0023] Figure 6 for Figure 2 A partial structural diagram of the heavy equipment being airdropped at point B and separating from the grappling hook after detaching from the airdrop carrier.

[0024] Figure 7 A schematic diagram of the semi-rigid guide chute in the heavy equipment airdrop traction structure provided in the embodiments of this application;

[0025] Figure 8 A schematic diagram of a heavy equipment airdrop traction structure provided in this application embodiment, in which the traction parachute is located inside a packaging container and connected to a connecting rope;

[0026] Figure 9 A schematic diagram of the connection between the semi-rigid guide parachute and the packaging container when the heavy equipment airdrop traction structure provided in this application is opened;

[0027] Figure 10 A partial structural diagram of the connecting rope in the heavy equipment airdrop traction structure provided in the embodiments of this application;

[0028] Figure 11 This is a cross-sectional view of the traction locking connector in the heavy equipment airdrop traction structure provided in the embodiments of this application.

[0029] In the diagram: 100, Semi-rigid pilot parachute; 110, Pilot parachute; 120, Opening pull cord; 130, Packaging round frame; 140, Spring assembly; 150, Connecting spring; 160, First U-shaped spring; 170, Second U-shaped spring; 180, Connecting buckle; 190, Spring tightening cord; 200, Packaging container; 210, Fixing buckle; 220, Cord loop; 230, Tightening strap; 300, Towing parachute; 310, Connecting cord; 320, Rope; 330, Unlocking pin; 400, Towing locking connector; 410, Towing locking seat; 420, Piston rod; 430, Hook; 440, Main parachute connecting plate; 450, Towing connecting plate; 500, Airdrop heavy equipment; 510, Airdrop carrier; 520, Guide rail; 530, Slot. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" 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 can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0036] In this application, unless otherwise expressly 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 being 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 being 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.

[0037] The features and performance of the heavy equipment airdrop traction structure of this application will be further described in detail below with reference to embodiments.

[0038] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9, Figure 10 and Figure 11 As shown, this application embodiment provides a heavy equipment airdrop towing structure, which includes a semi-rigid guide parachute 100, a packaging container 200 connected to the semi-rigid guide parachute 100, a towing parachute 300 housed in the packaging container 200, a towing locking connector 400 for connecting the airdropped heavy equipment 500 and the airdrop carrier 510, and a connecting rope 310 with the towing parachute 300 and the towing locking connector 400 respectively at both ends. The towing locking connector 400 is used to release the connection with the airdrop carrier when the connecting rope 310 is pulled, and to open the main parachute system connected to the airdropped heavy equipment 500 when the airdropped heavy equipment 500 is separated from the airdrop carrier 510.

[0039] The semi-rigid guide umbrella 100 includes a guide umbrella 110, an opening pull cord 120 wrapped around the outside of the guide umbrella 110, a packaging frame 130, and four spring assemblies 140 for connecting the guide umbrella 110 to the packaging frame 130. The four spring assemblies 140 are arranged circumferentially around the packaging frame 130. Each spring assembly 140 includes two coaxially spaced connecting springs 150 and two opposing first U-shaped springs 160 and second U-shaped springs 170. The adjacent ends are respectively connected to the two ends of the first U-shaped spring 160, and the opposite ends of the two connecting springs 150 are respectively connected to the two ends of the second U-shaped spring 170. The first U-shaped spring 160 is connected to the middle of the guide umbrella 110 passing through the packaging round frame 130, and the second U-shaped spring 170 is connected to the edge of the guide umbrella 110. The first U-shaped spring 160 of the two oppositely arranged spring assemblies 140 is tightened and connected by the spring tightening rope 190. The edge of the guide umbrella 110 is connected with spaced connecting buckles 180.

[0040] The packaging container 200 is provided with a fixed buckle 210 that corresponds to the connecting buckle 180. The packaging container 200 is connected with a rope loop 220 arranged at intervals. The connecting rope 310 passes through each rope loop 220 in sequence and then connects to the towing umbrella 300. The outer wall of the packaging container 200 is also connected with a tightening strap 230 extending along its circumference.

[0041] The connecting rope 310 consists of two ropes 320 connected at their ends. Each rope 320 is composed of five elastic connecting straps. The connecting rope 310 is connected to unlocking pins 330 arranged at intervals.

[0042] The traction locking connector 400 includes a traction locking seat 410 for connecting to the airdrop heavy equipment 500, a piston rod 420 that is vertically connected to the traction locking seat 410, and a hook 430 hinged to the traction locking seat 410. The bottom of the hook 430 presses downward to limit the position of the piston rod 420. The top of the hook 430 is hinged to a main parachute connecting plate 440 and a traction connecting plate 450 connected to the connecting rope 310. The main parachute connecting plate 440 is used to connect to the main parachute system fixed on the airdrop heavy equipment 500. When the connecting rope 310 is pulled, it drives the hook 430 to rotate through the traction connecting plate 450, so that the bottom of the hook 430 stops rotating and presses downward to limit the piston rod 420. When the tension on the hook 430 is greater than the preset tension, the hook 430 disengages from the traction locking seat 410. The airdrop carrier 510 is provided with a guide rail 520 extending along its length. The top of the guide rail 520 is provided with a slot 530. When the piston rod 420 is raised or lowered, its bottom part is disengaged from or inserted into the slot 530 on the guide rail 520.

[0043] The working principle of the heavy equipment airdrop towing structure provided in this application embodiment is as follows: the towing locking seat 410 of the towing locking connector 400 is connected to the airdrop heavy equipment 500, and the main parachute connecting plate 440 and the towing connecting plate 450 are respectively connected to the main parachute system and the connecting rope 310 at the top of the airdrop heavy equipment 500. This causes the piston rod 420 connected to the towing locking connector 400 to descend, extend downward, and insert into the slot 530 on the guide rail 520 of the airdrop carrier 510. The bottom of the hook 430 rotates downward to press against the piston rod 420 and lock the towing locking connector 400. Position, pass the connecting rope 310 through each rope loop 220 of the packaging container 200 and connect it to the towing umbrella 300 stored in the packaging container 200. Connect the connecting buckle 180 on the guide umbrella 110 of the semi-rigid guide umbrella 100 to the fixing buckle 210 of the packaging container 200 one by one. Use two spring tightening ropes 190 to pass around the first U-shaped spring 160 of the two oppositely arranged spring assemblies 140 to tighten and connect them. Wrap the umbrella opening pull rope 120 around the outside of the guide umbrella 110 and connect it to the umbrella opening device of the airdrop carrier 510, and then the airdrop operation can be carried out.

[0044] During an airdrop operation, the rear hatch of the airdrop carrier 510 is opened, and the interconnected packaging container 200 and semi-rigid guide parachute 100 are dropped from the airdrop carrier 510. The parachute opening device pulls the opening rope 120, which opens the guide parachute 110 of the semi-rigid guide parachute 100. The guide parachute 110 moves the packaging container 200, pulling the tow parachute 300 until the connecting rope 310 passes through the various rope loops 220 of the packaging container 200. Then, the tow parachute 300 stored inside the packaging container 200 is pulled out and opened. The opened tow parachute 300 pulls the connecting rope 310, which moves the tow connecting plate 450, causing the hook 430 to rotate clockwise. The clockwise rotation of the hook... When the claw 430 stops pressing down on the position of the limiting piston rod 420, the stretched connecting rope 310 drives the traction locking seat 410 and the connected airdrop heavy equipment 500 to move away from the rear door of the airdrop carrier 510. After the traction locking seat 410 is separated from the rear door of the airdrop carrier 510, the weight of the airdrop heavy equipment 500 falls entirely on the claw 430, causing the tension on the claw 430 to exceed the preset tension, thus separating the claw 430 from the traction locking seat 410. The main parachute connecting plate 440 connected to the claw 430 pulls the main parachute system to open, so that the opened main parachute system decelerates and lands the airdrop heavy equipment 500 that has been separated from the airdrop carrier 510.

[0045] The semi-rigid guide umbrella 100 does not have canopy lines. Instead, the guide umbrella 110 is connected to the rigid packaging frame 130 using an elastic spring assembly 140. The guide umbrella 110 is directly fixed to the packaging container 200 via connecting buckles 180 and fixing buckles 210. The spring assembly 140 allows the canopy of the guide umbrella 110 to maintain a stable drag surface after entering the airflow, and prevents the guide umbrella 110 from packaging the tow umbrella 300 and connecting lines during operation. The excessive weight of the packaging container 200 (310) generates torque that affects the parachute's opening posture, thus preventing the torque from pulling the continuously extended connecting rope 310 and causing it to scrape against the airdrop vehicle floor. The packaging container 200 is connected to a rope loop 220 through which the connecting rope 310 passes sequentially. The rope loop 220 functions to store the tow parachute 300 and the extra-long connecting rope 310, and prevents the connecting rope 310 from tangling during operation. The packaging container 200 is also connected to a tightening strap 230 extending circumferentially. Adjust the packaging density of the traction device; the connecting rope 310 consists of two ropes 320 connected at their ends, each rope 320 is composed of five elastic connecting straps, which can have a large elastic elongation to ensure that the traction parachute 300 avoids the aircraft wake when it is working. The connecting rope 310 is connected to the unlocking pins 330 arranged at intervals for the sealing operation after the traction parachute 300 is put into the packaging container 200; the traction locking connector 400 is connected to the airdrop heavy equipment 500, the main parachute system and the traction parachute 300 respectively, and is locked by pressing the liftable piston rod 420 with the hook 430 to the bottom guide rail of the airdrop carrier 510. When the traction parachute 300 is opened, the connecting rope 310 drives the hook 430 to rotate and stop pressing the piston rod 420 to release the lock and drive the traction locking connector 400 and the airdrop heavy equipment 500 to detach from the airdrop carrier 510. When the airdrop heavy equipment 500 detaches from the airdrop carrier 510, the main parachute system is activated.

[0046] The heavy equipment airdrop traction structure provided in this application improves the reliability of the airdrop system, ensures the safety of the airdrop carrier and the system, and plays a role in resisting airflow interference, high reliability and stable operation in the traction process of the airdrop system. It is suitable for traction airdrop of large tonnage, high speed and high altitude airdrop systems.

[0047] In other alternative embodiments, the connecting spring 150 is sleeved on the packaging frame 130, thereby stably connecting each spring assembly 140 to the packaging frame 130, ensuring that the spring assembly 140 stably connects the guide umbrella 110 to the packaging frame 130.

[0048] The embodiments described above are some, but not all, of the embodiments of this application. The detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. A heavy equipment airdrop traction structure, characterized in that, It includes a semi-rigid guide umbrella, a packaging container connected to the semi-rigid guide umbrella, a towing umbrella housed in the packaging container, a towing locking connector for connecting the airdropped heavy equipment and the airdrop carrier, and connecting ropes at both ends connected to the towing umbrella and the towing locking connector respectively. The semi-rigid guide umbrella includes a guide umbrella, an opening pull rope wrapped around the outside of the guide umbrella, a packaging frame, and multiple spring assemblies for connecting the guide umbrella to the packaging frame. The towing locking connector is used to release the connection with the airdrop carrier when the connecting rope is pulled, and to open the main umbrella system connected to the airdropped heavy equipment when the airdropped heavy equipment is detached from the airdrop carrier. Each spring assembly includes two coaxially spaced connecting springs and two oppositely arranged first U-shaped springs and second U-shaped springs. The adjacent ends of the two connecting springs are respectively connected to the two ends of the first U-shaped springs, and the opposite ends of the two connecting springs are respectively connected to the two ends of the second U-shaped springs. The first U-shaped springs are connected to the middle of the guide umbrella passing through the packaging frame, and the second U-shaped springs are connected to the edge of the guide umbrella.

2. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The connecting spring is sleeved on the packaging round frame.

3. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The edge of the guide umbrella is connected with multiple spaced-apart connecting loops, and the packaging container is provided with fixing loops that correspond one-to-one with the connecting loops.

4. The heavy equipment airdrop traction structure according to claim 1, characterized in that, It also includes spring tensioning cords for connecting the various spring assemblies.

5. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The packaging container is connected to multiple rope loops, and the connecting rope passes through each rope loop in sequence before connecting to the towing umbrella.

6. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The outer wall of the packaging container is also connected to a tightening strap extending circumferentially thereon.

7. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The traction locking connector includes a traction locking seat for connecting the airdropped heavy equipment, a piston rod that is vertically connected to the traction locking seat, and a hook hinged to the traction locking seat. The bottom of the hook presses downward to limit the position of the piston rod, and the top of the hook is hinged to a main parachute connecting plate and a traction connecting plate connected to the connecting rope. When the connecting rope is pulled, the hook rotates through the traction connecting plate, causing the bottom of the hook to stop rotating and press downward to limit the piston rod. When the tension on the hook is greater than a preset tension, the hook disengages from the traction locking seat.

8. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The connecting rope consists of two ropes connected at their ends, and each rope is composed of multiple elastic connecting straps.

9. The heavy equipment airdrop traction structure according to claim 1, characterized in that, The connecting rope is connected to a plurality of spaced-apart unlocking pins.

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