Active parachute landing device

Abstract

An active parachute landing device comprises a device body, and the device body comprises a driving gas generator, a nozzle and a parachute pack bin; the parachute bag is internally provided with a parachute opening pneumatic unit, an air guide pipe, a parachute canopy and parachute cords. The device adopts an active mode to open the parachute, the parachute is opened in the shortest time, and deceleration protection of a falling object is provided. And the safety of the low-altitude aircraft is improved.

Description

Technical Field

[0001] This application relates to a parachute landing device for low-altitude aircraft, and in particular a parachute that can provide deceleration protection quickly and smoothly. Background Technology

[0002] In the application of low-altitude aircraft, including unmanned aerial vehicles (UAVs) and manned aircraft, a safety measure is needed to minimize equipment damage and loss of life in the event of a malfunction. Parachutes are the most direct and effective measure.

[0003] Traditional parachutes rely on a passive approach during descent, stretching and extending through airflow to activate and provide deceleration protection. However, in low-altitude aircraft operating at altitudes of only tens of meters, a malfunction could result in the parachute failing to deploy before the aircraft hits the ground.

[0004] Some development teams have used parachute-launching technology to shorten the parachute line stretching time. However, this method results in a huge reaction force from the parachute launch, causing significant vibrations to the aircraft and potentially harming the drone equipment and personnel. The inability to choose or change the parachute launch direction is also a drawback, as the aircraft may end up in a tilted or inverted position. Summary of the Invention

[0005] This application proposes a rapid and stable parachute descent technology solution to provide deceleration protection for falling objects. The principle is as follows: The parachute is actively deployed, using a puller to detach, orient, and extend the parachute. Then, high-pressure gas enters the air duct, utilizing the rigidity of the expansion pipe to open the canopy. The device comprises: a main body, including a driving gas generator, nozzles, and a parachute compartment; and a parachute containing: a pneumatic deployment unit, air ducts, a canopy, and parachute lines. The driving gas generator is placed inside the main body and connected to the nozzles located on the outer surface of the main body, forming the driving unit at the top of the main body. The parachute compartment is located below the driving unit, and the parachute is folded and placed inside the compartment. Inside the parachute, the deployment gas tank is connected to the air duct, the conductor tubes are integrated with the canopy and are distributed in an orderly manner, and the canopy is connected to the object to be decelerated via parachute lines. During operation, the driving gas generator produces high-pressure gas, which is ejected through the nozzle to generate vector thrust. This propels the main body of the device away from the object to be decelerated and moves it rapidly upwards, stretching the parachute lines and canopy, thus completing the parachute deployment action and achieving the active parachute deployment function. Once the parachute lines and canopy have stretched and detached from the parachute compartment, high-pressure gas from the opening pneumatic unit enters the air duct, causing it to expand. Utilizing the rigidity of the expanded duct, the canopy is opened, completing the parachute deployment action and achieving the active parachute opening and deceleration function.

[0006] The beneficial effects of this application are: rapid and smooth parachute deployment, providing deceleration protection for falling objects, and increasing the safety of low-altitude aircraft. Attached Figure Description

[0007] Figure 1 It is a schematic diagram of the technical solution.

[0008] Figure 2 This is a diagram of the device's exterior.

[0009] Figure 3 This is a cross-sectional view of the device structure.

[0010] In the diagram: 3-1. Main body of the device; 3-2. Driving gas generator; 3-3. Nozzle; 3-4. Parachute compartment; 3-5. Parachute opening pneumatic unit; 3-6. Parachute canopy; 3-7. Parachute lines; 3-8. Deceleration body.

[0011] Figure 4 This is a diagram of the umbrella canopy structure.

[0012] In the diagram: 4-1. Pneumatic unit for opening the parachute; 4-2. Canopy; 4-3. Air guide groove; 4-4. Parachute lines. Detailed Implementation

[0013] Figure 1 The diagram shown is a schematic diagram to illustrate the working principle.

[0014] Figure 2 The image shown is a diagram of the device's exterior.

[0015] Figure 3 As shown: The main body of the device (3-1) houses a driving gas generator (3-2), which generates high-speed gas through physical or chemical means. This gas is ejected from the nozzle (3-3) and generates a directional thrust in six directions, providing steering offset force and upward propulsion. In the parachute compartment (3-4) of the main body, the parachute opening pneumatic unit (3-5), the canopy (3-6), and the parachute lines (3-7) are sequentially folded and compressed and placed inside. A short section of the parachute lines is then led out and connected to the deceleration body (3-8). Upon startup, the main body of the device is released, and the vector thrust generated by the nozzles pushes the main body away from its original fixed position. During movement, the vector thrust generated by the six-way nozzles adjusts the forward direction, ultimately causing the main body to move upward. With the upward displacement, the parachute lines and canopy are pulled out from the parachute compartment, achieving the function of active directional parachute deployment.

[0016] Figure 4As shown: In the umbrella, the pneumatic umbrella opening unit (4-1) is connected to the umbrella canopy (4-2) and can conduct air ducts (4-3) that are integrated with and orderly distributed within the umbrella canopy. The umbrella canopy is connected to the object to be decelerated via parachute lines. When the main body of the device moves upward and is fully pulled out of the umbrella and detached, high-pressure gas enters the air duct through the pneumatic umbrella opening unit (4-1), generating expansion force. Utilizing the rigidity of the expanded pipe, the umbrella canopy is opened, realizing the function of active umbrella opening.

Claims

1. An active parachute descent device, comprising: a main body, the main body including: The device comprises a driving gas generator, nozzles, and a parachute compartment. The parachute compartment contains a pneumatic unit for opening the parachute, a gas duct, a canopy, and parachute lines. Its features include: the driving gas generator is placed inside the main body and connected to a nozzle located on the outer surface of the main body, forming the driving unit at the top of the main body; the parachute compartment is located below the driving unit, and the parachute is folded and placed inside the compartment; inside the parachute, an opening gas tank is connected to the gas duct, the gas duct is integrated with the canopy and is distributed in an orderly manner, and the canopy is connected to the object to be decelerated via parachute lines; during operation, the driving gas generator produces high-pressure gas, which is ejected through the nozzle to generate vector thrust, causing the main body of the device to detach from the object to be decelerated and move rapidly upwards, stretching the parachute lines and canopy, completing the parachute throwing action, and realizing the active parachute throwing function; after the parachute lines and canopy are stretched and detached from the parachute compartment, the high-pressure gas from the opening pneumatic unit enters the gas duct, causing the gas duct to expand; utilizing the rigidity of the expanded pipe, the canopy is opened, completing the parachute opening action, and realizing the active parachute opening and deceleration function.

Images