Combined guide umbrella system

Abstract

This invention discloses a combined pilot parachute system for guiding the synchronous deployment of a group of parachutes. It includes a main pilot parachute, auxiliary pilot parachutes, pilot parachute packs, steering lines, connectors, tethering straps, and extension lines. A single main pilot parachute is used, while the number of auxiliary pilot parachutes is modular, selected based on the airdrop weight. Both the main and auxiliary pilot parachutes use independent pilot parachute packs. One end of the steering line connects to the tethering parachute's cord, and the other end tethers the main pilot parachute's canopy. The connector is located on the steering line, and all pilot parachute packs are connected to the connector. One end of the tethering strap connects to the connector, and the other end tethers the corresponding auxiliary pilot parachute's canopy. The cords of both the main and auxiliary pilot parachutes are extended to the group of parachutes via extension lines. This system eliminates the need to increase the number of pilot parachute types, offering high versatility, wide applicability, and good deployment consistency, thus reducing the design cost and verification difficulty of pilot parachutes.

Description

Technical Field

[0001] This invention belongs to the field of airdrop, specifically relating to a combined guide parachute system. Background Technology

[0002] Heavy equipment airdrops typically employ a three-stage parachute system. The first-stage tow parachute pulls out the heavy supplies or equipment and activates the second-stage pilot parachute. The pilot parachute then guides a swarm system of several large-area parachutes in the third stage to deploy synchronously. As the airdrop weight changes, the number of parachutes also changes accordingly. Because the pilot parachute affects the synchronicity and stability of the swarm system's deployment, its size must be adjusted based on the number of parachutes. Therefore, different pilot parachutes are used for different heavy equipment airdrop missions, each requiring individual design and multiple verifications. Summary of the Invention

[0003] The purpose of this invention is to provide a combined guide umbrella system that does not require additional types of guide umbrellas, has high versatility, wide applicability, and good opening consistency, thereby reducing the design cost and verification difficulty of guide umbrellas.

[0004] The technical solution adopted in this invention is:

[0005] A combined pilot parachute system for guiding the synchronous deployment of a group of parachutes includes a main pilot parachute, auxiliary pilot parachutes, pilot parachute packs, steering lines, connectors, tethering straps, and extension lines. A single main pilot parachute is used, while the auxiliary pilot parachutes are modularly designed, with the number selected based on the airdrop weight. Both the main and auxiliary pilot parachutes use independent pilot parachute packs. One end of the steering line connects to the tow parachute's rope, and the other end tethers the main pilot parachute's canopy. The connector is located on the steering line, and all pilot parachute packs are connected to the connector. One end of the tethering strap connects to the connector, and the other end tethers the corresponding auxiliary pilot parachute's canopy. The lines of both the main and auxiliary pilot parachutes are extended and connected to the group of parachutes via extension lines.

[0006] Furthermore, both the main guide parachute and the auxiliary guide parachute are equipped with a center line. One end of the center line is connected to the end of the parachute rope, and the other end pulls the inner side of the center of the parachute canopy to form an inward concavity.

[0007] Furthermore, the connector is located at the cross loop of the steering rope.

[0008] The beneficial effects of this invention are:

[0009] In this system, the steering rope ensures that the force of the traction parachute is directly transmitted to the main pilot parachute, activating it. The main pilot parachute generates constant drag, providing the prerequisite for the activation of the swarm parachute system. The number of auxiliary pilot parachutes can be adjusted to accommodate airdropped equipment of different weights. The traction strap controls the distance between the main and auxiliary pilot parachutes, as well as between the auxiliary pilot parachutes, preventing interference between multiple parachutes during deployment. Extended parachute lines increase the system length and ensure a stable drag coefficient. This system does not require additional types of pilot parachutes; the number of auxiliary pilot parachutes is selected based on the airdrop weight. It is highly versatile, widely applicable, and exhibits good deployment consistency, reducing the design cost and verification difficulty of the pilot parachutes. Furthermore, it does not impose higher requirements on the structural strength of the parachutes themselves or the system, significantly improving practicality and reliability. It is suitable for airdrops of large tonnage, high speed, and high altitude. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the combined guide umbrella system in an embodiment of the present invention.

[0011] Figure 2 yes Figure 1 A magnified view of a portion of the image.

[0012] In the diagram: 1-Guide parachute; 2-Combined guide parachute system; 21-Steering line; 22-Guide parachute pack; 23-Main guide parachute; 24-Extension lines; 25-Secondary guide parachute; 26-Tethering strap; 27-Connector; 3-Group parachute system. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] like Figure 1 and Figure 2 As shown, a combined pilot parachute system 2 is used to guide the synchronous deployment of a group parachute system 3. It includes a main pilot parachute 23, an auxiliary pilot parachute 25, a pilot parachute pack 22, a steering rope 21, a connector 27, a tethering strap 26, and an extension rope 24. There is one main pilot parachute 23, and the auxiliary pilot parachute 25 is modularly designed. The number of auxiliary pilot parachutes 25 is selected according to the airdrop weight. Both the main pilot parachute 23 and the auxiliary pilot parachute 25 use independent pilot parachute packs 22. One end of the steering rope 21 is connected to the parachute rope of the tow parachute 1, and the other end tethers the canopy of the main pilot parachute 23. The connector 27 is located on the steering rope 21, and all pilot parachute packs 22 are connected to the connector 27. One end of the tethering strap 26 is connected to the connector 27, and the other end tethers the canopy of the corresponding auxiliary pilot parachute 25. The parachute ropes of the main pilot parachute 23 and the auxiliary pilot parachute 25 are extended to the group parachute system 3 through the extension rope 24.

[0015] In this system, the steering rope 21 ensures that the force of the traction parachute 1 is directly transmitted to the main pilot parachute 23, activating the main pilot parachute 23. The main pilot parachute 23 generates constant drag, providing the prerequisite for the activation of the group parachute system 3. The number of auxiliary pilot parachutes 25 is adjusted to accommodate airdrop equipment of different weights. The traction strap 26 is used to control the distance between the main pilot parachute 23 and the auxiliary pilot parachutes 25, as well as among the auxiliary pilot parachutes 25, to avoid mutual interference when multiple parachutes open. The extended parachute rope 24 is used to increase the system length and ensure the drag coefficient. This system does not require increasing the types of pilot parachutes; it only requires selecting the number of auxiliary pilot parachutes 25 according to the airdrop weight. It has high versatility, wide applicability, and good opening consistency, reducing the design cost and verification difficulty of the pilot parachutes. Moreover, it does not place higher requirements on the structural strength of the parachutes themselves and the system, significantly improving practicality and reliability, and is suitable for airdrops of large tonnage, high speed, and high altitude.

[0016] like Figure 1 and Figure 2 As shown, in this embodiment, both the main guide umbrella 23 and the auxiliary guide umbrella 25 are equipped with a central rope. One end of the central rope is connected to the end of the parachute rope, and the other end pulls the inner side of the center of the canopy to form an inward concavity. This design increases the drag coefficient of the guide umbrella, improves its opening performance, and reduces its weight.

[0017] like Figure 1 and Figure 2 As shown, in this embodiment, the connector 27 is located at the cross loop of the steering rope 21.

[0018] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A combined guide umbrella system, characterized in that: The system is designed to guide the synchronized deployment of a swarm of parachutes, and includes a main pilot parachute, auxiliary pilot parachutes, pilot parachute packs, steering lines, connectors, tethering straps, and extension lines. A single main pilot parachute is used to generate constant drag, providing the necessary conditions for the swarm system to launch. The auxiliary pilot parachutes are modularly designed, with the number selected based on the airdrop weight. Both the main and auxiliary pilot parachutes use independent pilot parachute packs. One end of the steering line connects to the tow parachute's cord, and the other end tethers the main pilot parachute's canopy. The connector is located on the steering line, and all pilot parachute packs are connected to the connector. One end of the tethering strap connects to the connector, and the other end tethers the corresponding auxiliary pilot parachute's canopy. The tethering strap controls the distance between the main and auxiliary pilot parachutes, as well as between the auxiliary pilot parachutes, to prevent interference between multiple parachutes during deployment. The lines of both the main and auxiliary pilot parachutes are extended and connected to the swarm system via extension lines.

2. The combined guide umbrella system as described in claim 1, characterized in that: Both the main guide umbrella and the auxiliary guide umbrella are equipped with a center line. One end of the center line is connected to the end of the parachute rope, and the other end pulls the inner side of the center of the canopy to form an inward concavity.

3. The combined guide umbrella system as described in claim 1, characterized in that: The connector is located at the cross loop of the steering rope.

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