Anti-twist unmanned aerial vehicle parachute

Abstract

This utility model relates to the field of parachute technology and discloses an anti-entanglement drone parachute, including a parachute canopy and an anti-entanglement net. The parachute canopy has multiple parachute lines and air vents. Protrusions are installed on the multiple parachute lines. Multiple rings are installed on the anti-entanglement net, and through holes are formed within each ring. The parachute lines are inserted into the through holes. This utility model clearly separates multiple parachute lines into independent spaces, fundamentally preventing them from tangling or twisting. This design ensures that each parachute line remains independently extended, effectively avoiding the problem of parachute canopy deployment being hindered by tangled lines. This allows the parachute to stably generate effective lift, solving the hidden danger of deployment failure or insufficient lift caused by tangling in traditional parachutes. Furthermore, the anti-entanglement net ensures that each parachute line is evenly stressed, preventing situations where some lines are stressed while others are slack and weak.

Description

Technical Field

[0001] This utility model relates to the field of parachute technology, specifically to an anti-stranglement drone parachute. Background Technology

[0002] In the field of high-altitude equipment such as drones, small aerial photography devices, and lightweight reconnaissance equipment, parachutes are the core emergency devices to ensure the safe landing of these devices. Currently, parachutes on the market come in various sizes and shapes, including round and square, to suit the needs of different equipment.

[0003] However, regardless of the specifications and shape of traditional parachutes, their multiple parachute lines are generally designed to be freely distributed. During emergency deployment, the lines are easily tangled and twisted together due to factors such as airflow disturbances and uneven deployment speeds. On the one hand, this prevents the parachute from generating effective lift, and the equipment may fall at high speed out of control, causing damage. On the other hand, even if the parachute canopy manages to deploy, the tangled lines will cause some lines to be under concentrated stress while others are under insufficient stress, resulting in an overall imbalance of force on the parachute. During descent, the equipment is prone to dangerous postures such as tilting and rotating. This not only prevents the even transmission of lift through the parachute lines but may also exacerbate the impact damage between the equipment and the ground due to loss of control, seriously affecting the safety of emergency landings.

[0004] Therefore, we propose an anti-stranglement drone parachute to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide an anti-tangle drone parachute to solve the problem of parachute rope entanglement and twisting when the parachute is opened, as mentioned in the background art.

[0006] This utility model provides the following technical solution: an anti-tangle drone parachute, including a parachute canopy and an anti-tangle net, wherein the parachute canopy is provided with multiple parachute lines and air vents are provided on the parachute canopy, and protrusions are installed on the multiple parachute lines, and multiple rings are installed on the anti-tangle net, with through holes provided in the multiple rings, and the parachute lines are inserted into the through holes.

[0007] Preferably, the parachute canopy is square in shape and hollow inside.

[0008] Preferably, four air vents are arranged diagonally about the parachute canopy.

[0009] Preferably, the number of rings corresponds to the number of paracords.

[0010] Preferably, the number of protrusions corresponds to the number of rings, and the outer diameter of the protrusion is larger than the outer diameter of the through hole.

[0011] Preferably, the bottom surface of the paracord is provided with a mounting ring, and the drone body is mounted on the bottom of the mounting ring.

[0012] This utility model has the following beneficial effects:

[0013] 1. During the deployment of the parachute, the anti-tangling net simultaneously forms a flat planar net, which clearly separates multiple parachute lines into independent spaces, eliminating the possibility of parachute lines tangling or twisting together. This design ensures that each parachute line always maintains an independent extension state, effectively avoiding the problem of parachute canopy being hindered from normal deployment due to parachute line tangling. This allows the parachute to stably generate effective lift, laying a solid safety foundation for emergency landing of equipment and solving the hidden dangers of deployment failure or insufficient lift caused by tangling in traditional parachutes.

[0014] 2. Through the separation effect of the anti-winding net, this parachute ensures that each parachute line is evenly stressed, avoiding situations where some lines are stressed and others are slack and weak. At the same time, combined with the air pressure regulation function of the air vents, it can flexibly respond to changes in airflow and prevent the parachute canopy from rupturing due to abnormal air pressure. This allows drones or other high-altitude equipment to descend steadily at a safe speed. This not only effectively avoids the dangers of tilting and rotating during equipment landing, but also minimizes the risk of impact damage upon landing. It enables different types of high-altitude equipment to overcome the limitations of traditional parachutes in terms of poor adaptability and unreliable protection, and obtain stable and reliable emergency landing protection.

[0015] 3. This parachute can be flexibly adjusted in terms of the inner diameter of the mounting ring or the type of connecting clips to suit the weight and top interface specifications of different high-altitude equipment such as small aerial photography equipment, light reconnaissance equipment, and high-altitude operation auxiliary devices. This allows for precise compatibility with various high-altitude equipment. This design not only enables the same parachute to be used across multiple equipment categories without the need for separate customization for different equipment, greatly expanding the application scenarios, but also reduces the procurement cost and design complexity of emergency protection for high-altitude equipment, thereby improving the market applicability of the parachute. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 .

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 .

[0018] Figure 3 This is a schematic diagram of the installation structure of the drone body and parachute canopy of this utility model.

[0019] Figure 4 This is a schematic diagram of the anti-tangle mesh structure of this utility model.

[0020] In the diagram: 1. UAV body; 2. Mounting ring; 3. Parachute lines; 4. Parachute canopy; 5. Air vent; 6. Protrusion; 7. Anti-tangle net; 8. Circular ring; 9. Through hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1:

[0023] This embodiment aims to address the problem of parachute lines 3 easily becoming tangled and twisted during emergency landings of drones. Please refer to [link / reference]. Figure 1 - Figure 4 A type of anti-snagging drone parachute includes a parachute canopy 4 and an anti-snagging net 7. The parachute canopy 4 is made of high-density nylon fabric, which has excellent tear resistance, abrasion resistance, and good air permeability. It is also lightweight and can quickly absorb airflow after deployment, providing stable upward pull for the drone. The parachute canopy 4 has multiple parachute lines 3 and air ducts 5. Protrusions 6 are installed on the parachute lines 3. The anti-snagging net 7 has multiple rings 8, which both separate the parachute lines 3 and do not create excessive airflow resistance. Through holes 9 are formed within the rings 8, and the parachute lines 3 are inserted into the through holes 9. The parachute lines 3 are made of high-strength polyester braided rope, capable of withstanding the impact force during an emergency drone landing. The length of the parachute lines 3 is determined according to the size of the parachute canopy 4 and the drone's landing requirements, ensuring that the drone maintains a stable descent attitude after the parachute deploys, avoiding violent shaking of the drone due to excessively short parachute lines 3.

[0024] The parachute canopy 4 is square in shape and hollow inside. The side length of the square structure is designed according to the weight of the drone. The hollow structure is not completely transparent, but has sealed edges to prevent air leakage and ensure lift stability after the parachute is deployed. In addition, the inner side of the parachute canopy 4 is equipped with reinforcing ribs made of the same nylon material as the parachute canopy 4, which are distributed in a cross pattern to effectively improve the tensile strength of the parachute canopy 4 and prevent deformation or damage to the parachute canopy 4 due to airflow impact during emergency landing.

[0025] There are four air vents 5 arranged diagonally around the parachute canopy 4. The air vents 5 are located at the four diagonal positions of the parachute canopy 4 and are symmetrically distributed about the center of the parachute canopy 4. The air vents 5 allow some airflow to escape, which plays a role in regulating the internal air pressure of the parachute and stabilizing the descent speed, preventing the parachute from breaking due to excessive internal air pressure or causing the drone to shake violently due to airflow impact. The number of rings 8 corresponds to the number of parachute lines 3, and the number of protrusions 6 corresponds to the number of rings 8. The outer diameter of the protrusions 6 is larger than the outer diameter of the through holes 9.

[0026] In this embodiment: When the drone is flying normally, the anti-tangle drone parachute is stored in the parachute storage compartment on the top of the fuselage. The storage compartment is kept sealed, which can effectively prevent the parachute from being accidentally deployed due to airflow interference during flight. At this time, the parachute lines 3 are neatly folded, and the anti-tangle net 7 and the ring 8 are stored in the compartment together with the parachute lines 3. The protrusion 6 fits tightly against the ring 8, which can strictly limit the sliding of the ring 8 on the parachute lines 3, ensuring that the parachute is structurally stable in the stored state and will not become loose or have parts shift. The air vent 5 is in a naturally closed state, which can prevent dust and impurities in the storage compartment from entering the interior of the parachute and ensure that the parachute can be used normally in the future.

[0027] When the UAV flight control system detects a dangerous situation (such as UAV loss of control, power failure, or excessive fall speed due to battery depletion), it immediately sends a signal to the parachute triggering device. Upon receiving the signal, the triggering device quickly activates (usually using a gunpowder-based ejection or an electric push rod release method), simultaneously opening the parachute storage compartment door. After the door opens, under the combined action of ejection force or airflow, the parachute canopy 4 is ejected from the storage compartment first. Because the parachute canopy 4 is made of lightweight, high-strength nylon material and has a hollow internal structure, it can quickly absorb the surrounding airflow after ejection and gradually unfold under the drive of the airflow. It should be noted that the basic functions and operating methods of the aforementioned storage compartment and triggering device are known technologies and are not the core innovations of this technical solution; therefore, their detailed structures will not be described in detail.

[0028] As the parachute canopy 4 continues to unfold, multiple parachute lines 3 are gradually pulled out. The anti-tangling net 7, which was originally located near the bottom of the parachute canopy 4, slowly slides down and unfolds as the parachute lines 3 are pulled out. Since the multiple rings 8 on the anti-tangling net 7 correspond one-to-one with and are fixedly connected to the multiple parachute lines 3, the anti-tangling net 7 unfolds synchronously with the parachute lines 3 as they are pulled out, forming a flat net that evenly separates the multiple parachute lines 3, preventing them from tangling during unfolding. When the parachute canopy 4 is fully open, the rings 8 fall down and precisely lock onto the protrusion 6. At this time, the protrusion 6 strictly limits the sliding range of the rings 8 on the parachute lines 3, ensuring that the anti-tangling net 7 remains stable in the middle of the parachute lines 3 and will not shift due to excessive unfolding speed of the parachute lines 3 or airflow impact, thus continuously playing its anti-tangling role.

[0029] Once the parachute canopy 4 is fully deployed, the parachute lines 3 are completely straightened. At this point, the mounting ring 2 at the bottom of the parachute lines 3 tightly engages with the connection interface on the top of the drone, firmly securing the parachute and the drone together. Simultaneously, the four diagonally arranged air vents 5 of the parachute canopy 4 begin to function, allowing external airflow to enter the interior of the parachute canopy 4, creating a stable air pressure inside and providing upward lift for the drone, thereby effectively slowing down the drone's descent speed. If the drone encounters strong airflow during descent, causing the internal air pressure of the parachute canopy 4 to become too high, the excess airflow will be automatically discharged through the air vents 5, achieving dynamic adjustment of the internal air pressure and preventing the parachute canopy 4 from rupturing due to excessive air pressure, ensuring that the drone always maintains a safe descent speed.

[0030] Throughout the drone's descent, the anti-entanglement net 7 continuously functions as a separator, preventing the parachute lines 3 from tangling even due to airflow changes or slight drone movement. This ensures that each parachute line 3 is evenly stressed, stably transferring the parachute's lift to the drone's fuselage and maintaining a smooth descent without tilting or spinning. As the drone approaches the ground, the parachute's cushioning effect significantly reduces its descent speed, effectively minimizing the impact force and preventing damage to the fuselage and internal core components.

[0031] After the drone lands, the parachute canopy 4 gradually contracts under the combined effect of its own gravity and ground airflow, and the parachute lines 3 loosen accordingly. At this time, the staff can manually remove the parachute from the mounting ring 2 on the top of the drone for a comprehensive inspection and maintenance. This includes cleaning the surface of any impurities and dust, carefully checking for broken parachute lines 3, damage to the parachute canopy 4, and whether the ring 8 and protrusion 6 are loose or detached. If the parachute is undamaged, it can be folded back and stored in the storage compartment for future use. If any parts are found to be damaged, they must be replaced promptly to ensure the reliability and safety of the parachute when used again.

[0032] This embodiment aims to address the problem of insufficient compatibility design, which only supports specific drone models and cannot meet the connectivity requirements of other high-altitude equipment. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 1 - Figure 3 The bottom surface of the parachute rope 3 is provided with a mounting ring 2, and the drone body 1 is mounted on the bottom of the mounting ring 2.

[0033] In this embodiment: Continuing the basic design of Embodiment 1, the parachute can be connected to the top interface of the drone through the mounting ring 2 to complete the adaptation of the drone; at the same time, for other high-altitude equipment, the mounting ring 2 of the corresponding specification can be replaced (such as adjusting the inner diameter of the mounting ring 2 or changing the type of connecting buckle) to make it accurately match the top interface of the equipment, ensuring a firm connection and meeting the load-bearing and installation requirements of different equipment.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0035] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A type of anti-stranglement drone parachute, comprising a parachute canopy (4) and an anti-stranglement net (7), characterized in that: The parachute canopy (4) is provided with multiple parachute ropes (3), the parachute canopy (4) is provided with air vents (5), the multiple parachute ropes (3) are provided with protrusions (6), the anti-snagging net (7) is provided with multiple rings (8), the multiple rings (8) are provided with through holes (9), and the parachute ropes (3) are inserted into the through holes (9).

2. The anti-stranglement UAV parachute according to claim 1, characterized in that: The parachute canopy (4) is square in shape and hollow inside.

3. The anti-stranglement UAV parachute according to claim 1, characterized in that: The air vents (5) are arranged in a diagonal array about the parachute canopy (4).

4. The anti-stranglement UAV parachute according to claim 1, characterized in that: The number of the ring (8) corresponds to the number of the paracords (3).

5. The anti-stranglement UAV parachute according to claim 1, characterized in that: The number of protrusions (6) corresponds to the number of rings (8), and the outer diameter of the protrusions (6) is larger than the outer diameter of the through hole (9).

6. The anti-stranglement UAV parachute according to claim 1, characterized in that: The bottom surface of the paracord (3) is provided with an installation ring (2), and the drone body (1) is installed at the bottom of the installation ring (2).

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