Guide umbrella sectional type reversing structure used under continuous action of traction force

Abstract

The invention discloses a guide umbrella sectional type reversing structure used under the continuous action of traction force. Comprising a reversing connecting rope and a central rope (4), wherein the reversing connecting rope is formed by connecting a long-section reversing connecting rope (2) and a short-section reversing connecting rope (3) through a bar knot (7); the reversing connecting rope is connected with the traction parachute of the traction parachute system (6) and the auxiliary guide parachute (1); an auxiliary guide parachute pack (5) is connected through a sleeve knot (7) between the long-section reversing connecting rope (2) and the short-section reversing connecting rope (3); the center rope (4) is connected with the reversing connecting rope and the main umbrella system (8) and penetrates through the center of the auxiliary guiding umbrella (1). According to the structure, under the continuous action of traction force, the parachute opening procedure of the auxiliary guide parachute can be guaranteed, the force of the traction parachute can be transmitted synchronously, and the function that the traction parachute and the auxiliary guide parachute lift the main parachute at the same time is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of airborne airdrop, and in particular, is a segmented reversing structure of a guide parachute under the continuous action of traction force. Background Art

[0002] The traction parachute is used to pull the cargo platform of the airdrop system out of the cabin and realize the cargo platform leaving the aircraft. The traction parachute is inflated and expanded in the airflow outside the aircraft, generating aerodynamic force to pull the cargo platform. After the cargo platform is towed away from the aircraft, the traction force is reversed to pull the auxiliary guide parachute.

[0003] The auxiliary guide parachute system is activated by the traction parachute to lift up all the main parachute systems, pull the main parachute pack away from the cargo platform, and open the main parachute pack to pull out the main parachute.

[0004] During the process of heavy-load airdrop towing off the aircraft, after the cargo platform leaves the aircraft, when the towing parachute turns to pull up the auxiliary guide parachute, the traction force is still continuously loaded, so under normal circumstances the auxiliary guide parachute cannot complete the parachute opening procedure.

[0005] The current auxiliary guide parachute system is unable to fully inflate and achieve reversal under the continuous action of traction force. Usually, functional separation can only be achieved by jettisoning the traction parachute system, with only the auxiliary guide parachute taking on the function of pulling the main parachute.

[0006] The large-tonnage airdrop system requires a large number of main parachutes, so the auxiliary guide parachutes need to generate more pulling force. In this case, the traction force of the towing parachute is needed to pull the main parachute synchronously to achieve the rapid pulling of the main parachute. Moreover, the process of the traction force reversing to pull the auxiliary guide parachute is accompanied by the opening process of the auxiliary guide parachute. The existing reversing connecting rope cannot meet this requirement. Summary of the invention

[0007] The object of the present invention is to provide a segmented reversing structure of a guide parachute under the continuous action of traction force.

[0008] The technical solution to achieve the purpose of the present invention is: a segmented reversing structure for a guide parachute under the continuous action of traction force, including a reversing connecting rope and a center rope, the reversing connecting rope is composed of a long section reversing connecting rope and a short section reversing connecting rope connected by a knot; the reversing connecting rope connects the traction parachute and the auxiliary guide parachute of the traction parachute system; the auxiliary guide parachute bag is connected by a knot between the long section reversing connecting rope and the short section reversing connecting rope; the center rope connects the reversing connecting rope and the main parachute system, and passes through the center of the auxiliary guide parachute.

[0009] Furthermore, the length of the reversing connecting rope is 10m to 15m, and the length of the long reversing connecting rope is 2 to 3 times that of the short reversing connecting rope; the long reversing connecting rope and the short reversing connecting rope are sewn together by means of a knot; the end of the long reversing connecting rope away from the knot is a movable rope ring, which is connected to the fixed traction lock, and the end of the short reversing connecting rope away from the knot is also a movable rope ring, which is connected to the auxiliary guide parachute canopy top and the rope ring at one end of the center rope, and the auxiliary guide parachute bag is connected to the connection between the long reversing connecting rope and the short reversing connecting rope.

[0010] Furthermore, the rope loops of the long-section reversing connecting rope are fixed with cotton ropes, and the rope loops of the short-section reversing connecting ropes are soft rope loops; and a section of cotton sheath is provided on the long-section reversing connecting rope.

[0011] Furthermore, the central rope is 5m to 10m long and is made of polyester ribbon; there is a soft rope ring at each end, one of which is connected to the top of the auxiliary guide parachute and the free rope ring of the short section of the reversing connecting rope, and the other rope ring is aligned with the parachute rope ring of the auxiliary guide parachute for connection with the main parachute system.

[0012] Furthermore, the central rope is provided with a protective cover made of cotton cloth.

[0013] Furthermore, a large lifting ring is provided to connect the reversing connecting rope and the center rope.

[0014] Compared with the prior art, the present invention has the following significant advantages: the reversing structure can ensure the opening procedure of the auxiliary guide parachute under the continuous action of the traction force, and can synchronize the force transmission of the traction parachute, thereby realizing the function of the traction parachute and the auxiliary guide parachute lifting the main parachute at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the reversing connecting rope structure.

[0016] Figure 2 This is a schematic diagram of the center rope structure.

[0017] Figure 3 This is the overall connection diagram.

[0018] Figure 4 This is a diagram of the knot.

[0019] Figure 5 This is a schematic diagram of the overall connection. DETAILED DESCRIPTION

[0020] The present invention aims to design a connection structure that can satisfy the requirements of traction force reversal and auxiliary guidance of parachute opening under the continuous action of traction force.

[0021] The present invention is a traction force reversing device, which comprises a reversing connecting rope (including a long section 2 and a short section 3), a central rope 4 and a large lifting ring.

[0022] The reversing connecting rope is used to connect the traction parachute of the traction parachute system 6 and the auxiliary guide parachute 1, and to reverse the traction force to the auxiliary guide parachute 1, and transmit it to the main parachute system 8 to pull the main parachute. And through the knot structure 7 between the long section and the short section, the auxiliary guide parachute bag 5 is connected to realize the auxiliary guide parachute opening procedure.

[0023] The center rope 4 is used to connect the reversing connecting rope and the main parachute system 8, and passes through the center of the auxiliary guide parachute 1, so that the auxiliary guide parachute 1 can still be fully inflated under the continuous action of the traction force. The center rope 4 also transmits the traction force to the main parachute system 8 to pull the main parachute.

[0024] The large lifting ring is used to connect the reversing connecting rope and the center rope 4.

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Combination Figure 1 The segmented reversing structure is composed of a reversing connecting rope (including a long section and a short section), a center rope 4, and a large lifting ring.

[0027] The reversing connecting rope is 10m to 15m long and consists of two parts: the long section is about 2 to 3 times longer than the short section, and the two sections are sewn together by a knot 7. The movable rope ring of the long section connecting rope 2 is connected to the fixed traction lock, and the movable rope ring of the short section is connected to the rope ring at the top of the auxiliary guide parachute canopy and one end of the center rope 4. The rope ring of the auxiliary guide parachute is connected to the connection between the long and short sections of the connecting rope. The rope ring of the long section of the connecting rope is fixed with cotton rope, and the rope ring of the short section is a soft rope ring. There is a cotton sheath on the long section of the connecting rope to prevent it from contacting with the protruding parts in the system and being damaged.

[0028] Combination Figure 2 The center rope 4 is 5m to 10m long and is made of polyester ribbon. There is a soft rope ring at each end, one of which is connected to the top of the auxiliary guide parachute and the reversing connecting rope ring, and the other rope ring and the auxiliary guide parachute rope ring are connected to the main parachute bag connecting rope or the guide parachute connecting rope through a large ring. There is a protective cover outside the center rope, which is made of cotton cloth.

[0029] The invention has been verified by large-tonnage heavy-duty airdrop, and its performance meets the design requirements and has large-tonnage traction capacity. Through the segmented reversing structure of the guide parachute, the function of opening the auxiliary guide parachute bag through the segmented structure under the continuous action of traction force and transmitting the traction force to the downstream components is realized.

Claims

1. A segmented reversing structure for a guide parachute under continuous traction, characterized in that: The invention comprises a reversing connecting rope and a central rope (4), wherein the reversing connecting rope is composed of a long reversing connecting rope (2) and a short reversing connecting rope (3) connected by a knot (7); the reversing connecting rope connects the traction parachute and the auxiliary guide parachute (1) of the traction parachute system (6); the auxiliary guide parachute bag (5) is connected by the knot (7) between the long reversing connecting rope (2) and the short reversing connecting rope (3); the central rope (4) connects the reversing connecting rope and the main parachute system (8) and passes through the center of the auxiliary guide parachute (1).

2. The segmented reversing structure of the guide parachute under the continuous action of traction force according to claim 1 is characterized in that: The length of the reversing connecting rope is 10m to 15m, and the length of the long reversing connecting rope (2) is 2 to 3 times that of the short reversing connecting rope (3); the end of the long reversing connecting rope (2) away from the knot (7) is a movable rope ring, which is connected to a fixed traction lock; the end of the short reversing connecting rope (3) away from the knot (7) is also a movable rope ring, which is connected to the top of the auxiliary guide parachute (1) and the rope ring at one end of the central rope (4); the auxiliary guide parachute bag (5) is connected to the connection between the long reversing connecting rope (2) and the short reversing connecting rope (3).

3. The segmented reversing structure of the guide parachute under the continuous action of traction force according to claim 1 is characterized in that: The rope loop of the long section reversing connecting rope (2) is fixed by braiding cotton rope, and the rope loop of the short section reversing connecting rope (3) is a soft rope loop; and a section of cotton sheath is arranged on the long section reversing connecting rope (2).

4. The segmented reversing structure of the guide parachute under the continuous action of traction force according to claim 1 is characterized in that: The central rope (4) is 5 to 10 meters long and is made of polyester ribbon. It has a soft rope ring at each end, one of which is connected to the top of the auxiliary guide parachute (1) and the free rope ring of the short section of the reversing connecting rope (3), and the other rope ring is aligned with the parachute rope ring of the auxiliary guide parachute (1) for connection with the main parachute system (8).

5. The segmented reversing structure of the guide parachute under the continuous action of traction force according to claim 4 is characterized in that: The central rope (4) is provided with a protective cover made of cotton cloth.

6. The segmented reversing structure of the guide parachute under the continuous action of traction force according to claim 4 is characterized in that: A large lifting ring is also provided to connect the reversing connecting rope and the center rope (4).

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